Locking and anti-loosening structure for light load and compact space

Abstract

The utility model discloses a locking anti -loose structure of light load compact space, wherein, including: ball bearing, shaft sleeve, oil blanket, the inside of casing is installed to the transparent cover, and the ball bearing and shaft sleeve are all set up in the outside of shaft, and the oil blanket is installed in the outside of shaft sleeve, and the oil blanket is open to the ball bearing, and the transparent cover is installed in the outside of oil blanket, the outer wall of shaft is installed to the nut, and the inner wall of nut is outwardly recessed and is equipped with the recessed groove of inside, and the outer wall of nut is inwardly recessed and is equipped with the recessed groove of outside, one end of nut is equipped with and extends to the screw hole of several of another end, and the recessed groove of inside and the recessed groove of outside are penetrated, and several screws are installed in several screw holes correspondingly. The device is equipped with several screw holes on the nut, and several screws are installed in several screw holes correspondingly, because the recessed groove of inside and the recessed groove of outside of radial are equipped on the nut, the elastic deformation of nut will be produced, thereby making the nut compression shaft, thereby the friction between the nut and shaft will lock the nut in the shaft, and effectively prevent the separation of nut and shaft.

Description

Technical Field

[0001] This utility model relates to the technical field of speed changers and related technologies, and in particular to a locking and anti-loosening structure for light loads and compact spaces. Background Technology

[0002] Currently, once the round nut is fixed to the shaft, it is easy for the round nut and the shaft to loosen. However, due to the limited installation space for the round nut, it is difficult to install other structures on the round nut to prevent the round nut and the shaft from falling off. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a locking and anti-loosening structure for light-load and compact spaces, comprising:

[0004] Housing, ball bearing, oil seal, cover, shaft, nut, screw, bushing;

[0005] The ball bearing, the bushing, the oil seal, and the cover are all installed inside the housing;

[0006] The ball bearing and the bushing are both sleeved on the outside of the shaft, the oil seal is installed on the outside of the bushing, the oil seal is connected to the ball bearing, and the cover is installed on the outside of the oil seal;

[0007] The nut is installed on the outer wall of the shaft, the inner wall of the nut is recessed outward with an inner groove, and the outer wall of the nut is recessed inward with an outer groove.

[0008] One end of the nut is provided with a plurality of threaded holes extending to the other end and penetrating the inner recessed groove and the outer recessed groove;

[0009] The screws are correspondingly installed in the screw holes.

[0010] The above-mentioned locking and anti-loosening structure for light load and compact space includes an inner recessed groove surrounding the inner wall of the nut and an outer recessed groove surrounding the outer wall of the nut, wherein both the inner recessed groove and the outer recessed groove are annular grooves.

[0011] In the aforementioned locking and anti-loosening structure for a lightweight and compact space, the interior of the housing has a stepped surface, and the transparent cover is fixedly installed on the stepped surface by fixing screws.

[0012] In the aforementioned lightweight and compact locking and anti-loosening structure, a plurality of the aforementioned screw holes are arranged in a surrounding array around the nut.

[0013] In the aforementioned locking and anti-loosening structure for a lightweight and compact space, a gasket is provided between the through cover and the stepped surface, and the fixing screw is installed on the stepped surface through the through cover and the gasket.

[0014] In the aforementioned locking and anti-loosening structure for lightweight and compact spaces, a plurality of the screws are fixed to the screw holes by thread-locking adhesive.

[0015] The aforementioned locking and anti-loosening structure for a lightweight and compact space further includes: a plurality of butterfly washers, wherein a plurality of screws pass through the plurality of butterfly washers and are installed in the screw holes.

[0016] In the aforementioned locking and anti-loosening structure for lightweight and compact spaces, the screw is an internal hexagon screw.

[0017] The positive effects of the above technical solution compared with the existing technology are:

[0018] By applying this utility model, a locking and anti-loosening structure for light load and compact space is provided. The nut is provided with several screw holes, and several screws are installed in the corresponding screw holes. Since the nut is provided with radial internal and external recessed grooves, the nut will undergo elastic deformation, thereby pressing the nut against the shaft. The friction between the nut and the shaft locks the nut on the shaft, effectively preventing the nut and the shaft from separating. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a locking and anti-loosening structure for a lightweight and compact space according to the present invention.

[0020] Figure 2 This is a top view of the nut in this utility model.

[0021] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0022] 1. Housing; 2. Ball bearing; 3. Oil seal; 4. Cover; 5. Shaft; 6. Nut; 7. Bushing; 8. Internal recessed groove; 9. External recessed groove; 10. Screw hole; 11. Stepped surface; 12. Washer; 13. Butterfly washer; 14. Screw. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0024] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0025] like Figures 1 to 3 As shown, a preferred embodiment of a locking and anti-loosening structure for a light-load, compact space is illustrated, which includes: a housing 1, a ball bearing 2, an oil seal 3, a cover 4, a shaft 5, a nut 6, a screw 14, and a bushing 7.

[0026] The ball bearing 2, bushing 7, oil seal 3, and cover 4 are all installed inside the housing 1; the ball bearing 2 and bushing 7 are both sleeved on the outside of the shaft 5, the oil seal 3 is installed on the outside of the bushing 7 and communicates with the ball bearing 2, and the cover 4 is installed on the outside of the oil seal 2; the nut 6 is installed on the outer wall of the shaft 5, the inner wall of the nut 6 is recessed outward with an inner recessed groove 8, and the outer wall of the nut 6 is recessed inward with an outer recessed groove 9; one end of the nut 6 is provided with several screw holes 10 extending to the other end and penetrating the inner recessed groove 8 and the outer recessed groove 9; several screws 14 are correspondingly installed in several screw holes 10.

[0027] In actual use, the nut 6 is provided with several screw holes 10, and several screws 14 are installed in the screw holes 10 respectively. Since the nut 6 is provided with radial internal recessed grooves 8 and external recessed grooves 9, the nut 6 will produce elastic deformation, thereby pressing the nut 6 against the shaft 5. The friction between the nut 6 and the shaft 5 locks the nut 6 onto the shaft 5.

[0028] Based on the above, this utility model also has the following embodiments:

[0029] Furthermore, a locking and anti-loosening structure for light load and compact space is provided, wherein an inner recessed groove 8 is provided around the inner wall of the nut 6, and an outer recessed groove 9 is provided around the outer wall of the nut 6, and both the inner recessed groove 8 and the outer recessed groove 9 are annular grooves.

[0030] Furthermore, a locking and anti-loosening structure for a lightweight and compact space is provided, wherein the interior of the housing 1 is provided with a stepped surface 11, and the cover 4 is fixedly installed on the stepped surface 11 by fixing screws.

[0031] Furthermore, a lightweight and compact locking and anti-loosening structure is provided, wherein a plurality of screw holes 10 are arranged in a surrounding array on the nut 6. Specifically, multiple screw holes 10 can be provided. In this application, six screw holes 10 are provided on the nut 6, and six screws 14 are installed in the six screw holes 10 respectively, so that the nut 6 is pressed onto the shaft 5 by the six screws 14.

[0032] Furthermore, a locking and anti-loosening structure for a lightweight and compact space is provided, wherein a gasket 12 is provided between the through cover 4 and the stepped surface 11, and a fixing screw is installed on the stepped surface 11 through the through cover 4 and the gasket 12.

[0033] Furthermore, a lightweight, compact locking and anti-loosening structure is provided, wherein several screws 14 are fixed to the screw holes 10 by thread-locking adhesive. Specifically, the screws 14 and the shaft 6 are locked together by thread-locking adhesive.

[0034] Furthermore, a lightweight, compact locking and anti-loosening structure is provided, which also includes: several butterfly washers 13, and several screws 14 passing through the butterfly washers 13 and installed in the screw holes 10. Specifically, the butterfly washers 13 serve to prevent loosening, buffer, isolate, and seal.

[0035] Furthermore, a lightweight and compact locking and anti-loosening structure is provided, wherein screw 14 is an internal hexagon screw. Specifically, screw 14 is fully embedded in nut 6, and internal hexagon screws have better load-bearing capacity, are more aesthetically pleasing, and require a professional to disassemble with a special wrench, thus increasing safety during use.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking and anti-loosening structure for lightweight and compact spaces, characterized in that, include: Housing, ball bearing, oil seal, cover, shaft, nut, screw, bushing; The ball bearing, the bushing, the oil seal, and the cover are all installed inside the housing; The ball bearing and the bushing are both sleeved on the outside of the shaft, the oil seal is installed on the outside of the bushing, the oil seal is connected to the ball bearing, and the cover is installed on the outside of the oil seal; The nut is installed on the outer wall of the shaft, the inner wall of the nut is recessed outward with an inner groove, and the outer wall of the nut is recessed inward with an outer groove. One end of the nut is provided with a plurality of screw holes extending to the other end and penetrating the inner recess and the outer recess; The screws are correspondingly installed in the screw holes.

2. The locking and anti-loosening structure for a lightweight and compact space according to claim 1, characterized in that, The inner recessed groove is provided around the inner wall of the nut, and the outer recessed groove is provided around the outer wall of the nut, and both the inner recessed groove and the outer recessed groove are annular grooves.

3. The locking and anti-loosening structure for a lightweight and compact space according to claim 1, characterized in that, The interior of the housing has a stepped surface, and the transparent cover is fixedly installed on the stepped surface by fixing screws.

4. The locking and anti-loosening structure for a lightweight and compact space according to claim 1, characterized in that, A plurality of the aforementioned screw holes are arranged in a surrounding array on the nut.

5. The locking and anti-loosening structure for a lightweight and compact space according to claim 2, characterized in that, A gasket is provided between the transparent cover and the stepped surface, and the fixing screw passes through the transparent cover and the gasket to be installed on the stepped surface.

6. The locking and anti-loosening structure for a lightweight and compact space according to claim 1, characterized in that, Several of the screws are fixed to the screw holes by thread-locking adhesive.

7. The locking and anti-loosening structure for a lightweight and compact space according to claim 1, characterized in that, Also includes: A plurality of butterfly washers and a plurality of the aforementioned screws pass through the plurality of the butterfly washers and are installed in the screw holes.

8. The locking and anti-loosening structure for a lightweight and compact space according to claim 1, characterized in that, The screw is an internal hexagon screw.

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