The present invention relates to an anti-tampering structure which is disposable and cannot be opened unless damaged, and in particular an environmentally friendly anti-tampering lock catch with tearing piece(s) not scattered after being disposably rigid damaged.
At present, there are many kinds of disposable lock catches on the markets, which are mainly used to connect two or more components (products), so as to achieve locking and fastening effects, and so on.
Some of these lock catches have anti-tampering technical effect, such as a toed catch for a lid of box or container disclosed in the utility model CN 99237860, in which the lock catch is snapped in the box and connects the box and the lid together. When operating, it is required to damage the lock catch to open the lid, thus achieving anti-tampering technical effect. However, after the lock catch has been damaged, tearing piece(s) drops into the box, which is not environmentally friendly and not easy for recovering, and a range of applications is limited.
CN 200910042099 discloses another lock catch, which has a structure with a button of a locking beam snapped into a locking body, so as to achieve anti-tampering effect. However, this structure has many components, complex structure, and high mould cost. Further, when opening, it is required to damage the disposable lock catch with the aid of a dedicated tool, where the operation is not convenient.
The objective of the present invention is to provide a rigid and environmentally anti-tampering lock catch which can be opened without a special tool, and the tearing material is not chopped off after being torn. It will not produce elastic deformation upon force and easy to operate. The disposable anti-tampering lock catch has a simple structure, which is easy to disassemble and assemble.
In order to achieve the above objective, the present invention provides a disposable anti-tampering lock catch, wherein the disposable anti-tampering lock catch is one-piece and comprises:
a handle;
a main tearing portion provided with a first tearing structure which cannot be restored after tearing,
a locking structure capable of being inserted into a locking hole of a locked object so that the disposable anti-tampering lock catch is in a locked state, and a position limiting structure for controlling the locking structure to be in a locked state or an unlocked state; and
an auxiliary tearing arm having a second tearing structure,
wherein the first tearing structure and the second tearing structure are torn when the disposable anti-tampering lock catch is opened, and the auxiliary tearing arm is deformed and cannot be restored after tearing.
Preferably, the first tearing structure is a tearing rid.
Preferably, the auxiliary tearing arm is elastically deformed after the second tearing structure has been torn.
Preferably, the second tearing structure is a tearing rib provided at one end of the auxiliary tearing arm, and the other end of the auxiliary tearing arm is connected to other part of the disposable anti-tampering lock catch by a resilient structure.
In one embodiment, the disposable anti-tampering lock catch is provided with a main tearing hook cooperating with the first tearing structure and an auxiliary tearing hook cooperating with the second tearing structure, and in the locked state, the main tearing hook and the auxiliary tearing hook hang on the first tearing structure and the second tearing structure respectively, and when opening the disposable anti-tampering lock catch, the main tearing hook and the auxiliary tearing hook apply forces to the first tearing structure and the second tearing structure, respectively, so as to tear the first tearing structure and the second tearing structure.
In one embodiment, the locking structure is a rigid locking structure capable of being inserted and movable in the lock hole of the locked object, so as to be switched between a state in which the rigid locking structure is capable of being detached from the lock hole and a state in which the rigid locking structure is not capable of being disengaged from the lock hole;
the position limiting structure is configured for cooperating with a locked object position limiting hole on the locked object to control the rigid locking structure to be in a locked state or a movable state; wherein
when the rigid locking structure is in the state in which the rigid locking structure is not capable of being disengaged from the lock hole, the position limiting structure is inserted into the locked object position limiting hole and the rigid locking structure is in a locked state so that the anti-tampering lock catch is tightly locked;
when opening the disposable anti-tampering lock catch, the first tearing structure and the second tearing structure are both torn, the position limiting structure is separated from the locked object position limiting hole of the locked object, and the rigid locking structure is in a state in which the rigid locking structure is capable of being disengaged from the lock hole and movable so that the anti-tampering lock catch is detached from the locked object.
In the above embodiment, the anti-tampering lock catch further comprises a foldable portion, the locking structure is provided on a locking portion, the position limiting structure is provided on a position limiting portion, and the handle and the position limiting portion are connected to the locking portion and the main tearing portion through the foldable portion, so that the handle and the position limiting portion are rotatable with respect to the locking portion and the main tearing portion; the handle is provided with a first structure cooperating with the first tearing structure to tear the first tearing structure when opening the lock catch, and the locking portion is provided with a second structure cooperating with the second tearing structure to tear the second tearing structure when opening the lock catch; and the main tearing portion is further provided with a pin position limiting hole, and the position limiting structure on the portion limiting portion is a position limiting pin for cooperating with the pin position limiting hole and the locked object position limiting hole on the locked object, so as to control the rigid locking structure to be in a locked state or a movable state; wherein when the rigid locking structure is in the state in which the rigid locking structure is not capable of being disengaged from the lock hole, the position limiting pin is inserted into the pin position limiting hole and the rigid locking structure is in the locked state, thereby the anti-tampering lock catch is tightly locked; when opening the disposable anti-tampering lock catch, the first tearing structure and the second tearing structure are both torn, the position limiting pin is separated from the pin position limiting hole and the locked object position limiting hole on the locked object, and the rigid locking structure is in the state in which the rigid locking structure is capable of being disengaged from the lock hole and movable so that the anti-tampering lock catch is detached from the locked object.
Preferably, the anti-tamper lock catch is made of high strength plastic material.
Preferably, the first structure and the second structure is clasp.
Preferably, the second structure is provided on a side opposite to the rigid locking structure.
Preferably, the locking portion has a plate-like body, and the rigid locking structure is a pillar extending from the plate-like body, and a protrusion is provided on the outer periphery of the pillar, and the distance of the protrusion from the plate-like body is greater than the thickness of the object to be locked at the locking place.
Preferably, the handle is a plate-like body, and one end of which is provided with a skid resistance chute or a skid resistance strip on one side and security code on the other side.
In one embodiment, the position limiting portion is a plate-like body, and the position limiting pin is a pin protruding from the plate-like body; and the tearing portion has a plate-like body, and the first tearing structure is located on both sides of the plate-like body, and the pin position limiting hole is in the middle of the plate-like body, and a through groove is provided between the first tearing structure and the pin position limiting hole so that a hook can be inserted into the through groove to be snap-fit with the first tearing structure, so as to tear the first tearing structure when opening.
Preferably, tensile strengths of the first tearing structure and the second tearing structure are less than those of the foldable portion and the handle.
Preferably, the distance from the pin position limiting hole to the folded portion is set so that the position limiting pin can be inserted into the pin position limiting hole when the position limiting portion is rotated and folded around the foldable portion, and at the same time, the distance between the groove and the foldable portion is set so that the clasp can be snapped in the groove and can be moved left and right along the groove when the position limiting portion is rotated and folded around the foldable portion.
Preferably, the main tearing portion and the auxiliary tearing arm are not detached from the disposable anti-tampering lock catch after having been torn, and the locking structure is rigid when in a locked state.
In another embodiment, the locking structure is provided with locking members and a position limiting hole, and the position limiting structure is provided with a fixing plate, when being locked, the locking members are snapped in the lock hole of the locked object and the fixing plate is inserted into the position limiting hole so as to limit the locking members so that the locking members can not be detached from the lock hole.
Preferably, the handle is provided with a clasp, and the first tearing structure is a plurality of tearing ribs, and the clasp cooperates with the plurality of tearing ribs after assembly; and one end of the auxiliary tearing arm is connected to the handle through the second tearing structure and the other end is connected to the main tearing portion, and after the second tearing structure has been torn, the auxiliary tearing arm rebounds.
The disposable anti-tampering lock catch of the present invention has a simple structure, which is easy to disassemble and manufacture and has low cost. In addition, due to the use of high-strength rigid snap-fit structure, it will not produce elastic deformation when applying force, thus ensuring the lock catch will not accidentally be damaged or dropped during the transport process of goods. In addition, since the auxiliary tearing arm is provided, once the disposable anti-tampering lock catch is opened, the auxiliary tearing arm is deformed, such as bending upward, such that it can be clearly seen from the appearance that the lock catch has been opened.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings, so that the purposes, features and advantages of the present invention will be more clearly understood. It should be understood that embodiments shown in the drawings are not to limit the scope of the present invention, but merely to illustrate the true spirit of the technical solution of the present invention.
The locking portion 104 is provided at one end of the anti-tampering lock catch 100. The locking portion 104 is provided with two locking members 1042 and one position limiting hole 1041, and the locking members 1042 can be snapped into a lock hole (not shown) of object to be locked. The position limiting portion 102 is provided at the other end of the anti-tampering lock catch 100. The position limiting portion 102 is provided with a position limiting plate 1021. A foldable portion 107 is provided in the middle of the anti-tampering lock catch 100. When locking, the position limiting portion 102 is rotated 180 degrees about the foldable portion, and the position limiting plate 1021 is inserted into the position limiting hole 1041 to limit positions of the locking members 1042, so that the locking members 1042 cannot be detached from the lock hole of the object to be locked. When unlocking, the position limiting plate is taken away from the position limiting hole, and position limiting for the locking members 1042 is removed, so that the unlocking can be achieved.
The handle 101 is a plate-like body, one end of which is provided with a skid resistance chute or a skid resistance bar 1011 on one face and a security code on the other face. The other end of the handle 101 is connected to the position limiting portion 102. A protrusion 106 for tearing the first tearing structure 1031 is provided between the skid resistance bar 1011 of the handle 101 and the position limiting plate 1021 of the position limiting portion 102. The protrusion 106 is provided with a hook 1061. When assembled, the hook(s) is snapped in the first tearing structure 101.
One end of the auxiliary tearing arm 105 is connected to the handle 101 through a rib 1051 (a second tearing structure) and the other end is connected to the main tearing portion by an elastic structure 1071, so that after the rib 1051 has been torn, the auxiliary tearing arm 105 is elastically deformed (rebound). And because the rib of the auxiliary tearing arm cannot be restored at this time, the elastic deformation of the auxiliary tearing arm cannot be restored. Therefore, when the auxiliary tearing arm has been torn, its elastic deformation can be remarkably observed in appearance.
The position limiting portion 102 is connected to the main tearing portion 103 through another elastic structure 1072. The elastic structure 1071 and the elastic structure 1072 together form the foldable portion so that the handle 101, the position limiting portion 102, and the auxiliary tearing arm 105 can be folded through rotating around the foldable portion together.
In the present embodiment, the first tearing structure 1031 provided on the main tearing portion 103 is composed of a plurality of tearing bars or tearing ribs. The hook(s) 1061 on the protrusion 106 can snap into the first tearing structure 103 when the handle 101, the position limiting portion 102, and the auxiliary tearing arm 105 are folded through rotating around the foldable portion together.
Before use, the disposable anti-tampering lock catch 100 is flattened as shown in
When unlocking, as shown in
In the disposable anti-tampering lock catch 200 of the present embodiment, the handle 10 is provided with a clasp 12, and the position limiting portion 20 is provided with a position limiting pin 21. The locking portion 40 is provided with a crook 70 and a rigid locking structure 42, and in the present embodiment, the rigid locking structure is a rigid snap-fit structure 42. The main tearing portion 50 is provided with a tearing bar 52 and a pin position limiting hole 53 for engaging with the position limiting pin 21 to prevent the lock catch from moving. When locking, the rigid snap-fit structure 42 of the anti-tampering lock catch 200 is snapped into a lock hole 41 on the object to be locked (see
The handle 10 is a main operating portion for mounting and opening. The handle 10 is a plate-like body with a skid resistance chute or a skid resistance bar 11 provided on one face thereof for easy hand-held operation. On the other face, a security code (not shown) may be provided, for example by spraying, so as to achieve anti-tampering effect, which will be described in more detail below. On both sides of the handle 20 near the position limiting portion, a clasp 12 is provided as a barbed structure. The clasp 12 is used to engage with the main tearing portion so as to tear off the tearing bar on the main tearing portion when the lock catch is unlocked, as will be described in more detail below. The shape of the clasp 12 is not limited to a hook, but may have any suitable shape as long as it can snap into the main tearing portion when locking and be able to tear off the tearing bar when unlocking.
The position limiting portion controls the movement of the lock catch, so as to make the locking portion in a locked state or a movable state. The position limiting portion 20 is a plate-like body, and the position limiting pin 21 provided on the position limiting portion 20 is a cylindrical pin. However, it should be noted that the position limiting pin 21 may also be a pin whose lateral section is a suitable shape, such as a square shape, an oval shape, or the like.
The locking portion 40 has a plate-like body 41 provided with a rigid snap-fit structure 42 extending therefrom, and the rigid snap-fit structure 42 is used to lock a single piece or a plurality of pieces of object to be locked. In the embodiment shown in
The main tearing portion 50 has a plate-like body 51, the tearing bars 52 are provided on both sides of the body 51, the pin position limiting hole 53 is provided in the middle of the plate-like body 51, and a groove 54 is provided between the tearing bar 52 and the pin position limiting hole 53 so that the clasp(s) 12 can be inserted into the groove(s) 54 respectively and snap-fit with the tearing bar(s) 52. The tensile strength of the tearing bar must be smaller than the tensile strength of the foldable portion or the handle body, keeping the foldable portion 30 not damaged when the main tearing portion 50 is torn.
The distance from the pin position limiting hole 53 to the foldable portion 30 is set so that the position limiting pin 21 can be inserted into the pin position limiting hole 53 when the position limiting portion 20 is rotated and folded around the foldable portion 30. At the same time, the distance between the groove 54 and the foldable portion 30 is set so that the clasp 12 can be snapped in the groove 54 and can be moved left and right along the groove 54 when the position limiting portion 20 is rotated and folded around the foldable portion 30.
As shown in
In the disposable anti-tampering lock catch of the present invention, after the tearing bar on the main tearing portion has been torn off, the main tearing portion is still connected to the other portion, thereby facilitating recovery.
The disposable anti-tampering lock catch of the present invention has a wide range of applications. The disposable anti-tampering lock catch can be installed, as long as the product to be locked (object to be locked) is perforated to engage with the lock catch. When opening, the main tearing portion of the lock catch must be damaged and cannot be recovered after having been torn. Therefore, if a user finally finds that the lock catch is damaged or the security code on the lock catch is inconsistent with the original setting, the locked object may have been opened, and the user can therefore refuse or further examine in detail, so that the anti-theft effect is good. Further, after the tearing bar on the main tearing portion has been torn off, the main tearing portion is still connected to the other portion which is easy for recycling and has a good environmental effect. In addition, the disposable anti-tampering lock catch of the present invention has a simple structure which is easy to disassemble and manufacture and has a low cost. In addition, since the auxiliary tearing arm is provided and the auxiliary tearing arm is deformed after having been torn and cannot be restored, as long as the disposable anti-tampering lock catch has been opened, it can be clearly seen from the appearance. In other words, by providing the auxiliary tearing arm, it is possible to prevent the issue that when only the main tearing portion is provided, the hook is hung on the tearing bar again after tearing such that it is not apparent from the appearance that the anti-tampering lock catch has been opened.
In addition, due to the use of high-strength rigid snap-fit structure, it will not produce elastic deformation under force, thus ensuring the lock catch will not accidentally be damaged or dropped during the transport process of goods.
It should be noted that the structure of the lock hole on the object to be locked can be set to be a different structure as required, and accordingly, the specific structure of the rigid snap-fit structure may also be set as desired, as long as during the process of being locked and/or unlocked, the rigid snap-fit structure can be inserted into the lock hole and may not disengage from the lock hole after moving (translation or rotation) in the lock hole for a certain distance (or angle).
Preferred embodiments of the present invention has been described in detail above, while it is to be understood that, after reading the above teachings of the present invention, those skilled in the art may make various modifications or amendments to the present invention. These equivalent forms still fall into the scope limited by appended claims of the present application.
Number | Date | Country | Kind |
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2015 1 0056638 | Feb 2015 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2016/072344 | 1/27/2016 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2016/124090 | 8/11/2016 | WO | A |
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Entry |
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International Search Report for international application No. PCT/CN2016/072344, dated May 6, 2016 (4 pages, including English translation). |
Number | Date | Country | |
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20180002953 A1 | Jan 2018 | US |