Anti-loosening handle structure

Abstract

The utility model discloses an anti-loosening handle structure which comprises a front panel and a rear panel, the front panel and the rear panel are respectively provided with a handle in a rotating mode, the two handles are in linkage through a square shaft, and each handle is provided with a square groove allowing the square shaft to be inserted therein, and the anti-loosening handle structure is characterized in that the upper end face of each handle is provided with a strip-shaped through hole communicated with the square groove; a strip-shaped through hole is formed in the square shaft, a strip-shaped groove communicated with the strip-shaped through hole is formed in the square shaft, a fastening plate inserted into the strip-shaped groove is arranged in the strip-shaped through hole, a first threaded hole communicated with the square groove is formed in one side of the handle, a first screw is in threaded connection with the first threaded hole, and a round hole allowing the first screw to be screwed in is formed in the square shaft. According to the anti-loosening handle structure, the handle and the square shaft are connected in the fastened mode through the first screw and the round hole, in addition, the strip-shaped through hole of the handle and the strip-shaped groove of the square shaft are tightly connected by inserting the fastening plate, even if the first screw loosens, the handle cannot be loosened, the structural stability of the handle and the square shaft is better, the service life is longer, and the service life of the handle and the square shaft is prolonged. Even if the fastening plate is damaged, only a new fastening plate needs to be replaced, the whole handle does not need to be replaced, and the later maintenance cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of door handles, in particular to an anti-loosening handle structure. Background Art

[0002] Existing handles generally include handles that are rotatably arranged on the front panel and the rear panel. The two handles are linked by a square shaft, and the handles are provided with a square groove for inserting the square shaft. For example, the Chinese utility model patent with application number 202120572442.9 discloses an anti-dismantling door handle, including a first handle, a first mounting seat, a second handle, a second mounting seat and a mounting bolt. The first handle is connected to the first mounting seat, and a nut column is provided on the inner side surface of the first mounting seat. The mounting bolt passes through the second mounting seat and matches the connecting nut column. The second mounting seat is connected to the second handle. This handle and the square shaft are fastened together by only one bolt or screw. After the handle has been used for a period of time, the bolt or screw is prone to loosening, causing the handle to loosen, and the structural stability is poor. Summary of the Invention

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide an anti-loosening handle structure with better structural stability.

[0004] To this end, the present invention is achieved by adopting the following technical solutions:

[0005] A handle structure to prevent loosening, comprising a front panel and a rear panel, both of which are rotatably provided with handles, the two handles being linked by a square shaft, the handles being provided with a square groove for inserting the square shaft, and the characteristics of the structure are as follows: a strip-shaped through hole communicating with the square groove is provided on the upper end surface of the handle, a strip-shaped groove communicating with the strip-shaped through hole is provided on the square shaft, a fastening plate inserted into the strip-shaped groove is provided in the strip-shaped through hole, a first threaded hole communicating with the square groove is provided on one side of the handle, a first screw is screwed into the first threaded hole, and the square shaft is provided with a round hole for screwing the first screw in.

[0006] Furthermore, the fastening plate has two deformation parts, each of which is provided with a second threaded hole, a second screw is screwed into the second threaded hole, and arc grooves are provided on the inner wall of the strip-shaped through hole and the strip-shaped groove aligned with the deformation part.

[0007] Furthermore, a fingerprint slot is provided at the front end of the handle of the front panel, a fingerprint head is provided in the fingerprint slot, a circuit board and a power supply connected to each other are provided in the front panel, the fingerprint head is connected to the circuit board through a wire, and a cleaning roller is movably provided in the handle and inserted into the fingerprint, and the cleaning roller can rub the surface of the fingerprint head.

[0008] Furthermore, a rack and a vertical slide rail are provided in parallel in the handle, a slide groove is provided on the vertical slide rail, a slider is provided for sliding in the slide groove, a motor connected to the circuit board is provided horizontally on the upper end of the slider, a gear meshing with the rack is provided on the rotating shaft of the motor, the cleaning roller is connected to the upper end of the motor through a connecting rod, and a strip hole is provided on the side wall of the fingerprint groove for accommodating the connecting rod to move up and down.

[0009] Furthermore, a polygonal groove is provided at the left end of the connecting rod, a first magnetic block is provided at the bottom of the polygonal groove, and a second magnetic block is provided at the right end of the cleaning roller that is inserted into the polygonal groove and attracted to the first magnetic block.

[0010] Furthermore, the cross-sections of the slide groove and the slider are both trapezoidal.

[0011] After adopting the above technical solution, the handle and the square shaft are fastened together by the first screw and the round hole. In addition, the bar-shaped through hole of the handle and the bar-shaped groove of the square shaft are tightly connected by inserting a fastening plate. Even if the first screw becomes loose, the handle will not become loose, so that the structural stability of the handle and the square shaft is better and the service life is longer. Even if the fastening plate is damaged, it can be replaced with a new one without replacing the entire handle, and the later maintenance cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model has the following drawings:

[0013] Figure 1 This is a front view structural diagram of the utility model;

[0014] Figure 2 It is a top view of the front panel of the present invention;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 This is a structural diagram of the slide rail, slider, motor, connecting rod and part of the cleaning roller in the utility model.

[0017] Figure numerals: 1. front panel; 2. handle; 3. square shaft; 4. square groove; 5. strip-shaped through hole; 6. strip-shaped groove; 7. fastening plate; 8. first threaded hole; 9. round hole; 10. deformation part; 11. second threaded hole; 12. arc-shaped groove; 13. fingerprint groove; 14. fingerprint head; 15. cleaning roller; 16. rack; 17. vertical slide rail; 18. slide groove; 19. slider; 20. motor; 21. gear; 22. connecting rod; 23. strip-shaped hole; 24. polygonal groove; 25. first magnetic block; 26. second magnetic block. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0019] The screw threaded hole 8 of the first screw threaded hole 8 is screwed in the screw threaded hole 8, and the screw threaded hole 8 is screwed in the screw threaded hole 8. The screw threaded hole 8 is screwed in the screw threaded hole 8, and the screw threaded hole 8 is screwed in the screw threaded hole 8.

[0020] In this embodiment, the handle 2 and the square shaft 3 are fastened together by a first screw and a circular hole 9. In addition, the strip through hole 5 of the handle 2 and the strip groove 6 of the square shaft 3 are tightly connected by inserting a fastening plate 7. Even if the first screw becomes loose, the handle 2 will not become loose, so that the structural stability of the handle 2 and the square shaft 3 is better and the service life is longer. Even if the fastening plate 7 is damaged, it is sufficient to replace it with a new fastening plate 7 without replacing the entire handle 2, which reduces the maintenance cost. By screwing the second screw into the second threaded hole 11, the second screw squeezes the deformation part 10 to deform it outward and squeeze it into the arc groove 12, so that the connection structure of the fastening plate 7, the handle 2 and the square shaft 3 is more stable and firm.

[0021] Reference Figure 1 、 3As shown in FIG4 , a fingerprint slot 13 is provided at the front end of the handle 2 of the front panel 1, and a fingerprint head 14 is provided in the fingerprint slot 13. A circuit board and a power supply connected to each other are provided in the front panel 1. The fingerprint head 14 is connected to the circuit board through a wire. A cleaning roller 15 inserted into the fingerprint is movably provided in the handle 2. The cleaning roller 15 can rub the surface of the fingerprint head 14. A rack 16 and a vertical slide rail 17 are arranged in parallel in the handle 2. A slide groove 18 is provided on the vertical slide rail 17. A slider 19 is provided in the slide groove 18. The upper end of the slider 19 is horizontally provided with a There is a motor 20 connected to the circuit board, and a gear 21 engaged with the rack 16 is sleeved on the rotating shaft of the motor 20. The cleaning roller 15 is connected to the upper end of the motor 20 through a connecting rod 22. The side wall of the fingerprint groove 13 is provided with a bar for the connecting rod 22 to move up and down. The left end of the connecting rod 22 is provided with a polygonal groove 24, and the bottom of the polygonal groove 24 is provided with a first magnetic block 25. The right end of the cleaning roller 15 is provided with a second magnetic block 26 inserted into the polygonal groove 24 and attracted to the first magnetic block 25. The cross-sections of the slide 18 and the slider 19 are both trapezoidal.

[0022] In this embodiment, the motor 20 can be driven by the circuit board and the button to drive the gear 21 to rotate. Since the gear 21 is engaged with the rack 16, the motor 20 and the slider 19 can move up and down on the slide rail. The motor 20 drives the connecting rod 22 and the cleaning roller 15 to move up and down, so that the cleaning roller 15 can wipe off the dirt remaining on the surface of the fingerprint head 14 to prevent the fingerprint head 14 from failing; the detachable structure of the cleaning roller 15 and the connecting rod 22 allows the cleaning roller 15 to be pulled out for cleaning or replaced with a new cleaning roller 15 after being used for a period of time. The arrangement of the first magnetic block 25 and the second magnetic block 26 makes the cleaning roller 15 not easy to fall out and is convenient for assembly; the cross-sections of the slide groove 18 and the slider 19 are both trapezoidal, making the structure of the slide rail and the slider 19 more stable and firm, preventing the slider 19 from falling out.

[0023] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A handle structure for preventing loosening, comprising a front panel and a rear panel, both of which are rotatably provided with handles, the two handles being linked by a square shaft, the handles being provided with a square groove for accommodating the square shaft, wherein: The upper end surface of the handle is provided with a strip-shaped through hole connected to the square groove, the square shaft is provided with a strip-shaped groove connected to the strip-shaped through hole, a fastening plate inserted into the strip-shaped groove is provided in the strip-shaped through hole, a first threaded hole connected to the square groove is provided on one side of the handle, a first screw is screwed into the first threaded hole, and the square shaft is provided with a round hole for the first screw to be screwed in.

2. The anti-loosening handle structure according to claim 1, characterized in that: The fastening plate has two sections of deformation parts, each of which is provided with a second threaded hole, a second screw being screwed into the second threaded hole, and arc grooves are provided on the inner wall of the strip-shaped through hole and the strip-shaped groove aligned with the deformation part.

3. The anti-loosening handle structure according to claim 1 or 2, characterized in that: A fingerprint slot is provided at the front end of the handle of the front panel, and a fingerprint head is provided in the fingerprint slot. A circuit board and a power supply connected to each other are provided in the front panel. The fingerprint head is connected to the circuit board through a wire. A cleaning roller is movably provided in the handle and inserted into the fingerprint, and the cleaning roller can rub the surface of the fingerprint head.

4. The anti-loosening handle structure according to claim 3, characterized in that: A rack and a vertical slide rail are arranged in parallel in the handle, a slide groove is provided on the vertical slide rail, a slider is provided to slide in the slide groove, a motor connected to a circuit board is horizontally provided on the upper end of the slider, a gear meshing with the rack is sleeved on the rotating shaft of the motor, the cleaning roller is connected to the upper end of the motor through a connecting rod, and a strip hole is provided on the side wall of the fingerprint groove for accommodating the connecting rod to move up and down.

5. The anti-loosening handle structure according to claim 4, characterized in that: The left end of the connecting rod is provided with a polygonal groove, the bottom of the polygonal groove is provided with a first magnetic block, and the right end of the cleaning roller is provided with a second magnetic block that is inserted into the polygonal groove and attracted to the first magnetic block.

6. The anti-loosening handle structure according to claim 4 or 5, characterized in that: The cross sections of the sliding groove and the sliding block are both trapezoidal.

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