The present invention relates to a fixing mechanism, especially to a fixing mechanism which is not easy to damage the inner wire and easy to adjust, and a lamp using the fixing mechanism.
Lighting devices are indispensable products for modern life. Generally speaking, they can be divided into fixed lighting devices that are fixed to the ceiling, or suspended lighting devices that are suspended from the ceiling.
The suspended lighting device uses a plurality of suspended wires to connect to a power source from the ceiling and a light-emitting element (such as a light bulb), and the power source uses these suspended wires to transmit power to the light-emitting element. The suspended wire is usually provided with a clamping mechanism to adjust the distance between the suspended lighting device and the ceiling.
However, the conventional clamping mechanism uses steel balls to clamp the suspension wire inwards. The heavier the load is, the tighter the steel balls are clamped inwards. If the suspension wire is an electric wire, the insulating layer of the electric wire will be pinched and damaged to cause electric leakage. In addition, the suspension wire and the clamping mechanism are usually fixed, therefore, after the height of the conventional suspension lighting device is determined, it cannot be adjusted again according to the needs of the user.
One object of the present invention is to provide a fixing mechanism that is not easy to damage the suspension wire and is easy to adjust.
The fixing mechanism is used for a wire to pass through and be clamped and fixed. The fixing mechanism comprises a casing, a plurality of clamping members disposed in the casing, and a biasing member. The casing has an inner surface which surrounds an accommodating space that communicates with the outside and extends along the axial direction of the casing. The accommodating space has a large-diameter end and a small-diameter end. The clamping members are arranged in the accommodating space of the casing. Each of the clamping members has an outer surface facing the inner surface of the casing, and a cross section of the outer surface along the axial direction is arc-shaped and the outer surface of the clamping member contacts with the inner surface partially. The clamping members can be pushed toward the large-diameter end of the accommodating space to separate the clamping members from each other, so that the wire can move between the clamping members. The biasing member is disposed in the accommodating space and located on the side of the clamping members facing the large-diameter end. The biasing member can push the clamping members toward the small-diameter end of the accommodating space to make the clamping members close to each other to clamp the wire.
In a preferable embodiment, there are gaps revealed above and below the contact position between the outer surface of the clamping members and the casing along the axial direction of the casing.
In a preferable embodiment, the inner surface has an inclined section, one end of the inclined section forms the large-diameter end, and the other end of the inclined section forms the small-diameter end. The diameter of the inclined section is tapered from the large-diameter end toward the small-diameter end. In a preferable embodiment, the inclined section of the inner surface of the casing has a fixed slope, and the outer surfaces of the clamping members are tangent to the inclined section of the inner surface of the casing with their arc-shaped surface.
In a preferable embodiment, the inner surface has an inclined section and an extended section connected below the inclined section, one end of the inclined section forms the large-diameter end, and one end of the extended section forms the small-diameter end.
In a preferable embodiment, each of the clamping members further has a clamping groove facing the other clamping members, and the clamping groove extending along the axial direction of the casing.
In a preferable embodiment, the clamping groove of each of the clamping members is formed with a rough surface or an internal thread.
In a preferable embodiment, the fixing mechanism further includes an upper cover disposed on the top of the casing, and the biasing member is pressed between the upper cover and the clamping members.
In a preferable embodiment, the fixing mechanism further includes a releasing member, which is arranged in the accommodating space and is located on the side of the clamping member facing the small-diameter end. The bottom of the casing has a through hole, and the releasing member is hollow and has a push rod extending through the through hole and a protruding wall extending radially outward from the top end of the push rod. The diameter of the protruding wall is larger than the diameter of the through hole, and a part of the push rod protrudes from the through hole.
In a preferable embodiment, the fixing mechanism further includes a screwing member combined with the push rod of the releasing member. The outer surface of the push rod is formed with an external thread for the screwing member to be screwed together.
In a preferable embodiment, the outer surface of the push rod has at least one anti-rotation plane extending along its axial direction, and the shape of the through hole of the casing is matched with the at least one anti-rotation plane.
Another object of the present invention is to provide a lamp which comprises at least one fixing mechanism as described above, a wire passing through the fixing mechanism, and a light source connecting the wire.
Another object of the present invention is to provide a lamp which comprises at least one fixing mechanism as described above, a wire passing through the fixing mechanism, and a light source connecting the wire. The push rod of the releasing member of the fixing mechanism and the screwing member are fixed to an external environment, so that the wire can be fixed or moved relative to the external environment.
The characteristic of the present invention is that the outer surface of each of the clamping members is arc-shaped, so the contact area with the inner surface of the casing can be reduced, thereby reducing the frictional force between the casing and the clamping members. Therefore, it is easier for a releasing member to push the clamping members and improves the convenience of operation.
The detailed description and preferred embodiments of the invention will be set forth in the following content and provided for people skilled in the art to understand the characteristics of the invention.
Referring to
As shown in
The clamping members 4 are disposed in the inclined section 211 of the accommodating space 22. Each of the clamping members 4 has an outer surface 41 facing the inner surface 21 of the casing 2, and a clamping groove 42 facing the other clamping member 4. The clamping groove 42 extends along the axial direction of the casing 2, and a channel 40 is surrounded by the clamping members 4. A cross section of the outer surface 41 of each clamping members 4 along the axial direction is arc-shaped and the outer surface 41 of the clamping members 4 contacts with the inner surface 21 partially.
The releasing member 5 is hollow, arranged in the accommodating space 22 and located on the side of the clamping members 4 toward the small-diameter end 222. Part of the releasing member 5 protrudes out of the casing 2. In this embodiment, the releasing member 5 is disposed in the extended section 212. The bottom of the casing 2 has a through hole 20, the releasing member 5 has a push rod 51 extending through the through hole 20, and a protruding wall 52 extending radially outward from the top end of the push rod 51. The diameter of the protruding wall 52 is larger than the diameter of the through hole 20, and a part of the push rod 51 protrudes from the through hole 20.
The biasing member 6 is disposed in the accommodating space 22 and between the clamping members 4 and the upper cover 3. In this embodiment, the biasing member 6 has a spring 61 and a ring-shaped washer 62 disposed at the bottom of the spring 61. The arrangement of the ring-shaped washer 62 can increase the contact area with the clamping members 4 and can also make the pushing force of the spring 61 to the clamping member 4 more evenly. In some embodiments, the biasing member 6 may also be a single spring 61, which is not limited to what is disclosed in this embodiment.
Referring to
After the wire W has passed through the channel 40 until the fixed position of the wire W between the clamping members 4 is determined, the releasing member 5 can no longer be applied with force. At this time, the elastic restoring force accumulated by the biasing member 6 will push the clamping members 4 toward the small-diameter end 222 of the accommodating space 22, and the clamping members 4 are moved along the inner surface 21 of the casing 2 toward the small-diameter end 222. The clamping members 4 gradually approach to each other to reduce the diameter of the channel 40, until the clamping members 4 fit and position the wire W, as shown in
Referring to
Therefore, the fixing mechanism of the present invention has the following characteristics:
Referring to
Referring to
In addition, when the fixing mechanism of the present invention is applied to a suspended lamp, the lamp includes four wires W, as shown in
To sum up, since the surface of the outer surface 41 of the clamping members 4 is arc-shaped, the fixing mechanism and the lamp of the present invention can reduce the contact area and the frictional force between the clamping members 4 and the casing 2. It makes it easier for the releasing member 5 to push the clamping members 4 and improves the convenience of operation. At the same time, the design of the clamping groove 42 of the clamping member 4 can reduce the damage to the wire W and prolong the use period of the wire W.
Although the present invention has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein.
It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims.
This application is a continuation application of International Application No. PCT/CN2021/118840, filed on, Sep. 16, 2021. The entire disclosures of all the above applications are hereby incorporated by reference.
Number | Date | Country | |
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Parent | PCT/CN2021/118840 | Sep 2021 | US |
Child | 17880295 | US |