Patent Application
20250221502
The present application claims the priority of Chinese patent application No. 202410029786.3, filed on Jan. 8, 2024, and contents of which are incorporated herein by reference.
The present invention relates to the field of fastening devices, especially involving a magnetic fastener and a strap.
For mother and baby products, supplies for the disabled, and safety equipment, the requirements for their safety and convenience are relatively high. Therefore, the magnetic fastener is widely applied in the above industries.
In the process of using the magnetic fastener, there are mainly two actions: one is to lock the magnetic fastener; the other is to unlock the magnetic fastener.
How to ensure the safety and convenience of locking and unlocking the magnetic fastener has become the urgent technical problem to be solved in this field.
The present invention aims to solve one of the technical problems in related technologies to a certain extent, thus the present invention provides a magnetic fastener and a strap, with advantages, including simple manufacturing, convenient and safe assembly and disassembly, etc.
For this purpose, the first aspect of the present invention is to provide a magnetic fastener composed of a female snap and a male snap, the female snap includes a first locking unit, the male snap contains at least one second locking unit, the first locking unit has a projecting piece, and there is a clamping groove on the side of the projecting piece; the male snap also includes a base, on which the clamping hole is formed along the thickness direction of the base and penetrates through the thickness; the base contains a fitting surface and an assembly surface opposite to the fitting surface, and the projecting piece can pass through the clamping hole along the assembly surface; the second locking unit is set up on one side of the assembly surface, the second locking unit contains a locking arm and a clamping portion that is formed at the first end of the locking arm, the second locking unit is separated from the base, and the second locking unit can linearly move on the base, to enable the locking arm to move along the base, so that the clamping portion is kept away from the clamping groove, and the second locking unit is in the unlocking position, where the clamping portion is separated from the clamping groove.
Optionally, the locking arm is set up so that it can make the clamping portion keep away from the center of the clamping hole when the projecting piece passes through the clamping hole.
Optionally, the second locking unit also contains a pressing portion, and one end of the locking arm that is kept away from the clamping portion is connected to the pressing portion.
Optionally, the pressing portion is divided into Zone 1, Zone 2 and Zone 3 along the length direction; at least, Zone 1 has the locking arm.
Optionally, the male snap contains two second locking units, the pressing portions of two second locking units are respectively located at both radial ends of the base, and two locking arms are spaced apart from each other.
Optionally, Zone 1 and Zone 3 are provided with the locking arms; the clamping portions on two locking arms are spaced apart from each other.
Optionally, the male snap has two second locking units, the pressing portions of two second locking units are respectively located at both radial ends of the base, and two locking arms on the same side of two opposite second locking units are stacked.
Optionally, the clamping portion is formed by bending the first end of the locking arm.
Optionally, the locking arm contains a connecting arm and an elastic arm, one end of the connecting arm is connected to the pressing portion, the other end of the connecting arm is connected to one end of the elastic arm, the other end of the elastic arm is formed as the first end of the locking arm, the clamping portion is set up at the other end of the elastic arm, and the pressing portion is arranged on the outer edge of the base, so that the pressing portion can be affected by the external force.
Optionally, the second locking unit also contains an ejection arm; the ejection arm is arranged at one end of the connecting arm that is kept away from the pressing portion, and is spaced apart from the elastic arm; the ejection arm is located between the elastic arm and the clamping hole; one end of the ejection arm that is kept away from the connecting arm is spaced apart from one end of the clamping portion that is connected to the elastic arm.
Optionally, the male snap also contains a reset arm that is corresponding to the locking arm of the second locking unit; the reset arm is arranged on the locking arm, and the base is provided with a first stop portion; the reset arm is abutted against the first stop portion after moving, or is directly abutted against the first stop portion, the reset arm moves to the first stop portion when the pressing portion is affected by the external force, and the reset arm can suffer from elastic deformation in the unlocking position.
Optionally, the male snap also contains a spring, the base is provided with a second stop portion, and the spring is installed between the pressing portion and the second stop portion; when the pressing portion moves to the second stop portion due to the external force, the spring can suffer from elastic deformation; when the external force is released, the pressing portion is restored to its initial position by the elastic force of the spring.
Optionally, the male snap also includes a shell and a side wall surrounding the base, and the side wall is located on one side of the assembly surface; the shell, the base, and the side wall form a chamber; the second locking unit is set up in the chamber.
Optionally, the shell is matched with a side wall to form the pressing hole, the pressing portion is provided with a stop block, the stop block is set up on both sides of the pressing portion, and the distance between two stop blocks is more than the maximum diameter of the pressing hole.
Optionally, the female snap is provided with a first magnet, and the male snap is provided with a second magnet; the first and second magnets attract each other.
Optionally, the male snap also contains a mounting cylinder surrounding the clamping hole, the second magnet is arranged in the mounting cylinder, and the first magnet is placed on the projecting piece.
Optionally, the male snap also contains a connecting portion that is used for external connection and is arranged on the base.
The use of the magnetic fastener provided in the present invention can facilitate locking and unlocking. As the direction of the action force required for locking and unlocking is different, the magnetic fastener provided in the present invention is relatively safe. In the magnetic fastener, the second locking unit is separated from the base, and the engagement between the second locking unit and the base does not need to be very close. This is to say that, during manufacturing, the tolerable errors are larger to reduce production costs.
The second aspect of the present invention is to provide a strap that includes the magnetic fastener described in any of the above content.
These features and advantages of the present invention are disclosed in detail in the following embodiments and drawings. The best embodiment or means of the present invention will be described in detail in conjunction with the drawings, but this shall not be construed as the restriction on the technical proposal of the present invention. In addition, there are multiple features, elements and components appearing in each text and drawing, and they are marked with the different symbols or numbers for convenience, but they represent the components with the same or similar structures or functions.
The present invention is further explained in conjunction with drawings:
Thereinto, the marks in the drawings are shown below:
The embodiments of the present invention are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar number represents the same or similar element or the component with the same or similar functions. Based on the embodiments that are provided, this is intended to explain the present invention, and shall not be construed as the restriction on the present invention.
“One embodiment”, “instance” or “example” cited in the specifications means that, the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment disclosed in this application. In the specifications, the phrase “in one embodiment” in various positions does not have to be the same embodiment.
As shown in
The male snap 110 also includes a base 112, on which the clamping hole 112a is formed along the thickness direction of the base 112 and penetrates through the thickness; the base 112 contains a fitting surface and an assembly surface opposite to the fitting surface, and the projecting piece 121a can pass through the clamping hole 112a; the second locking unit 111 is set up on one side of the assembly surface, the second locking unit 111 contains a locking arm 111a and a clamping portion 111b that is formed at the first end of the locking arm 111a, the second locking unit 111 is separated from the base 112, and the second locking unit 111 can linearly move on the base 112, to enable the locking arm 111a to move along the base 112, so that the clamping portion 111b is kept away from the clamping groove, and the second locking unit 111 is in the unlocking position, where the clamping portion 111b is separated from the clamping groove 121b.
In the present invention, the first end of the locking arm 111a is a limitation on the location of the clamping portion 111b, and doesn't contain other meanings. The second locking unit 111 is separated from the base 112, so that there is no rigid fitting relationship between the second locking unit 111 and the base 112. For this purpose, the tolerable errors of the second locking unit 111 and the base 112 during design and manufacturing are larger, to achieve simpler manufacturing and lower costs. The second locking unit 111 can linearly move on the base 112 to achieve unlocking, which reduces the number of components that suffer from elastic deformation during each unlocking, so that the magnetic fastener is more durable.
In the present invention, the magnetic fastener has a locking position and an unlocking position, with two locking forms. The first form is that the projecting piece 121a passes through the clamping hole 112a, so that the clamping portion 111b is separated from the center of the clamping hole 112a. This is to say that, when the projecting piece 121a passes through the clamping hole, it can push the clamping portion 111b to the outside of the clamping hole 112a; after the projecting piece 121a fully passes through the clamping hole 112a and reaches the set position, the clamping portion 111b is not pushed and is engaged with the clamping groove 121b, and the magnetic fastener achieves locking. The second form is that the second locking unit 111 linearly moves on the base 112, and the clamping portion 111b approaches or moves away from the clamping groove, to achieve the locking of the magnetic fastener.
In the present invention, there are no special restrictions on the specific structure and form of the male fastener 110, as long as it can work with the female snap 120 to realize the locking of the magnetic fastener 110. In the optional embodiment, the male fastener 110 is composed of the second locking unit 111 and the base 112; the second locking unit 111 is set up on the base 112.
In the present invention, there are no special restrictions on the specific structure and form of the second locking unit 111. In the optional embodiment, the second locking unit 110 also includes the pressing portion 111c, and one end of the locking arm 111a that is kept away from the clamping portion 111b is connected to the pressing portion 111c. The pressing portion 111c directly undergoes the external force. The locking arm 111a contains a connecting arm and an elastic arm 111d, one end of the connecting arm is connected to the pressing portion, the other end of the connecting arm is connected to one end of the elastic arm 111d, the other end of the elastic arm 111d is formed as the first end of the locking arm 111a, the clamping portion 111b is set up at the other end of the elastic arm 111d, and the pressing portion 111b is arranged on the outer edge of the base 112, so that the pressing portion 111c can be affected by the external force. When the magnetic fastener is unlocked, if the large action force is applied to the magnetic fastener, the second locking unit comes into contact with the side wall of the base. If the second locking unit cannot be deformed, it will cause that the second locking unit is in rigid contact with the side wall of the base, which may result in damage to the second locking unit. The elastic arm is set up, so when the magnetic fastener undergoes large action force, the rigid contact does not appear between the second locking unit and the base, and the second locking unit may be deformed. The first end of the above locking arm 111a is the end to connect the elastic arm and the clamping portion 111b.
In the present invention, the second locking unit 111 also contains the ejection arm 111e; the ejection arm 111 is arranged at one end of the connecting arm that is kept away from the pressing portion 111c, and is spaced apart from the elastic arm; the ejection arm 111 is located between the elastic arm and the clamping hole; one end of the ejection arm 111 that is kept away from the connecting arm is spaced apart from one end of the clamping portion 111b that is connected to the elastic arm. The ejection arm can limit the degree of elastic deformation of the second locking unit.
In the present invention, there are no restrictions on the specific structure of the pressing portion 111c, as long as it can undergo external force and move; in the optional embodiment, the surface of the pressing portion 111c affected by the external force is relatively large.
In the present invention, there are no restrictions on the specific structure of the locking arm 111a, as long as it can move along with the pressing portion 111c. In the optional embodiment, the locking arm 111a extends from the pressing portion 111c to the projecting piece.
In the present invention, there are no restrictions on the specific structure of the clamping portion 111b, as long as it can move along with the locking arm 111a. In the optional embodiment, the clamping portion 111b can work with the clamping groove to lock the magnetic fastener 100.
In the optional embodiment, as shown in
In the optional embodiment, the male snap contains two second locking units 111, the pressing portions 111c of two second locking units 111 are respectively located at both radial ends of the base, and two locking arms 111a are spaced apart from each other.
In the optional embodiments, Zone 1 and Zone 3 are provided with the locking arms. The clamping portions on two locking arms are spaced apart from each other. In this way, there are the following circumstances: on the same pressing portion 111c, Zone 1 and Zone 3 are provided with the locking arms 111a; on the corresponding pressing portion 111c, only Zone 1 is provided with the locking arm 111a on two pressing portions; on the corresponding pressing portion 111c, Zone 1 of one pressing portion is provided with the locking arm 111a, and Zone 3 of the other pressing portion is provided with the locking arm 111a.
In the optional embodiment, as shown in
In the optional embodiment, the locking unit 111 can be reset automatically. Further, in the present invention, there are no special restrictions on the component and structure that can achieve the automatic reset of the first locking unit 111. In the optional embodiment, as shown in
When the magnetic fastener 100 involved in the present invention is unlocked, the locking arm 111a is driven by the pressing portion 111c to move along the direction of external force, and promotes the forward movement of the reset arm 111f. The reset arm 111f is an elastic connecting rod; when the magnetic fastener 100 is not affected by the external force, the reset arm 111f can be abutted against the first stop portion 112b, or spaced setting can be adopted. However, when the magnetic fastener 100 is affected by the external force, after the pressing portion 111c is pressed, the first stop portion 112b is abutted against the reset arm 111f, so that the reset arm 111f is deformed. When the external force disappears, the reset arm 111f recovers its shape, and provides the elastic force, so that reset arm 111f is reset to drive the reset of the locking arm 111a and the pressing portion 111c.
In other optional embodiments, the second locking unit can be reset in other ways. As shown in
In the present invention, when the magnetic fastener 100 is used, the locking arm 111a is driven by the pressing portion 111c to move along the direction of external force. In addition, when the spring 111g is not affected by the external force, the spring 111g can be abutted against the second stop portion 112c, or spaced setting can be adopted. However, when the magnetic fastener 100 is affected by the external force, after the pressing portion 111c is pressed, the spring 111g is abutted against the second stop portion 112c, so that the spring 111g is deformed. When the external force disappears, the spring 111g recovers its shape, and provides the elastic force, so that the spring 111g is reset to drive the reset of the locking arm 111a and the pressing portion 111c. In the optional embodiment, the second stop portion is arranged around the clamping hole.
In the present invention, the male snap 110 also includes a shell 113 and a side wall surrounding the base 112, and the side wall is located on one side of the assembly surface. The shell 113, the base 112 and the side wall form a chamber; the second locking unit 111 is set up in the chamber. Moreover, in the optional embodiment, the pressing portion 111c is arranged outside the chamber, so that the external force is applied to the pressing portion 111c. The shell 113 works with the base 112 to conduct the dust protection for the male snap and make the structure of the male snap 110 firmer.
In the present invention, the shell 13 is matched with the side wall to form the pressing hole, and the pressing portion can pass through the pressing hole, so that the pressing portion can undergo the external force.
In the present invention, the second locking unit also includes the stop block 111h that can extend from the pressing portion 111c to both sides; after the pressing portion is set up on the base, the stop block 111h can be abutted against the shell 113, so that the second locking unit 111 does not completely pass through the pressing hole.
In the present invention, there are no special restrictions on the specific structure and form of the female snap 120, as long as it can work with the male snap 110 to lock the magnetic fastener 100. In the optional embodiment, the female snap 120 also contains a foundation 122, and the projecting piece 121a is formed as the foundation 122 projects outwards. The foundation 122 is connected to the strap. In the present invention, there are no special restrictions on the specific structure and form of the foundation 122. In the optional embodiment, the foundation 122 is provided with the flat elongated hole that the band can pass through. In other optional embodiments, the foundation 122 has multiple holes used for external connection. In the optional embodiment, the male snap also contains a connecting portion that is used for external connection and is arranged on the base.
In the present invention, the female snap 120 is provided with the first magnet 123, and the male snap 110 is provided with the second magnet 114; the magnetic poles of the first magnet 123 and the second magnet 114 are arranged in opposite directions. Therefore, when the male snap approaches the female snap, the first magnet 123 and the second magnet 114 attract each other. In the optional embodiment, the male snap 110 also contains a mounting cylinder surrounding the clamping hole, the second magnet 114 is arranged in the mounting cylinder, and the first magnet 123 is placed on the projecting piece.
In the present invention, there are no special restrictions on the specific structure and form of the projecting piece 121a, as long as it can include the first locking unit 121 and is connected to the foundation 122. In the optional embodiment, the projecting piece 121a protrudes from the foundation 122. If the magnetic fastener 100 is not provided with a foundation, the projecting piece 121a is integrally made. The clamping groove 121b is formed on the side of the projecting piece 121a; the clamping groove 121b is engaged with the clamping portion 111b.
As shown in
The above content is only the specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this. Technicians familiar with this field shall understand that the present invention includes but not limited to the content described in the drawings and embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included within the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202410029786.3 | Jan 2024 | CN | national |
