CN216478357U

CN216478357U - Anti-loosening device

Info

Publication number: CN216478357U
Application number: CN202122976741.1U
Authority: CN
Inventors: 王怀超; 李志鹏; 初彬彬
Original assignee: State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd; Economic and Technological Research Institute of State Grid Beijing Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd; Economic and Technological Research Institute of State Grid Beijing Electric Power Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-05-10
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a loosening prevention device, which comprises: the radial dimension of the top cover is greater than that of the nut, and the top cover is used for abutting against one side of the nut; the radial size of the bottom plate is larger than that of the nut, and the bottom plate is sleeved on a bolt connected with the nut and is abutted against the other side of the nut; and two ends of the connecting rod are respectively connected with the top cover and the bottom plate so as to limit the distance between the top cover and the bottom plate. Adopt this scheme, through the one side butt with top cap and nut, the opposite side butt of bottom plate and nut to connect top cap and bottom plate through the connecting rod, inject the distance between top cap and the bottom plate, thereby carry out axial spacing to the nut, avoided not hard up or drop of nut.

Description

Anti-loosening device

Technical Field

The utility model relates to the technical field of iron tower installation, in particular to a locking device.

Background

In the high-voltage overhead transmission line, the iron tower is widely used. The whole iron tower is formed by the angle steel equipment, adopts bolted connection between the angle steel, in order to prevent that the nut from coming off after becoming flexible, generally all can install locking cover additional in the nut outside. However, in the operation process of the overhead line, the tower body of the iron tower can bear long-term load action and various weather conditions, so that the anti-loosening cover can slowly fall off, the nut can also slowly loosen or fall off, and potential safety hazards are caused to the normal operation of the overhead line. Therefore, it is necessary to design a device which can ensure that the nut does not loosen and fall off.

SUMMERY OF THE UTILITY MODEL

The utility model provides a locking device, which aims to solve the problem that a nut in the prior art is loosened or falls off.

In order to solve the above problems, the present invention provides a loosening prevention device, including: the radial size of the top cover is larger than that of the nut, and the top cover is used for being abutted against one side of the nut; the radial size of the bottom plate is larger than that of the nut, and the bottom plate is sleeved on the bolt connected with the nut and is abutted against the other side of the nut; and the two ends of the connecting rod are respectively connected with the top cover and the bottom plate so as to limit the distance between the top cover and the bottom plate.

Further, the top cover comprises a circular plate and a limiting ring arranged on the circular plate, the diameter of the limiting ring is smaller than that of the circular plate, the circular plate is used for being abutted to the end face of the nut, and the limiting ring is used for surrounding the nut so as to limit the relative position of the top cover and the nut in the radial direction.

Furthermore, the top cap has the pilot hole, and the bottom plate has the draw-in groove that corresponds with the pilot hole, and the one end of connecting rod is passed the pilot hole and is stopped the cooperation with the terminal surface of top cap, the other end and the draw-in groove joint of connecting rod.

Further, the connecting rod is including the pole cap, the body of rod and the pole head that connect gradually, and the radial dimension of pole cap and pole head all is greater than the radial dimension of the body of rod, and wherein, the draw-in groove is gone into to the one end card of the body of rod towards the bottom plate, and the pole head is in the axial of the body of rod and bottom plate backstop cooperation, and the assembly hole is passed towards the one end of top cap to the body of rod, the terminal surface backstop cooperation of pole cap and top cap.

Further, the clamping groove is provided with an opening, the width of the opening is smaller than the diameter of the rod body, and the maximum radial size inside the clamping groove is larger than the diameter of the rod body.

Further, one side of the bottom plate, which is far away from the top cover, is provided with a groove, the groove is communicated with the clamping groove, and the groove is used for accommodating the club head.

Furthermore, the limiting ring is of a circular ring structure or a hexagonal structure.

Further, the internal diameter of spacing ring is 35 ~ 50mm, and the bottom plate still has the round hole that is used for dodging the bolt.

Further, the top cover, the connecting rod and the bottom plate are all made of stainless steel.

Further, pilot hole, connecting rod and draw-in groove are a plurality ofly, and a plurality of pilot holes distribute in the circumference of top cap, and a plurality of draw-in grooves distribute in the circumference of bottom plate, and a plurality of pilot holes and a plurality of connecting rod one-to-one set up, and a plurality of connecting rods and a plurality of draw-in groove one-to-one set up.

By applying the technical scheme of the utility model, the utility model provides the anti-loosening device which comprises the following components: the radial size of the top cover is larger than that of the nut, and the top cover is used for being abutted against one side of the nut; the radial size of the bottom plate is larger than that of the nut, and the bottom plate is sleeved on the bolt connected with the nut and is abutted against the other side of the nut; and the two ends of the connecting rod are respectively connected with the top cover and the bottom plate so as to limit the distance between the top cover and the bottom plate. Adopt this scheme, through the one side butt with top cap and nut, the opposite side butt of bottom plate and nut to connect top cap and bottom plate through the connecting rod, injectd the distance between top cap and the bottom plate, thereby carry out axial spacing to the nut, avoided not hard up or drop of nut.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows a side view of a check assembly provided by an embodiment of the present invention;

FIG. 2 shows a side view of the overcap of FIG. 1;

FIG. 3 shows a top view of the top cover of FIG. 2;

FIG. 4 shows a bottom view of the base plate of FIG. 1;

fig. 5 shows an assembly view of the locking device and the bolt and nut of fig. 1.

Wherein the figures include the following reference numerals:

10. a top cover; 11. a circular plate; 12. a limiting ring; 13. an assembly hole;

20. a base plate; 21. a card slot; 211. an opening; 22. a groove;

30. a connecting rod; 31. a rod cap; 32. a rod body; 33. a club head.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, an embodiment of the present invention provides a loosening prevention device, including: a top cover 10, the radial dimension of the top cover 10 is larger than that of the nut, and the top cover 10 is used for abutting against one side of the nut; the radial size of the bottom plate 20 is larger than that of the nut, and the bottom plate 20 is used for being sleeved on a bolt connected with the nut and is abutted against the other side of the nut; and a connecting rod 30, wherein both ends of the connecting rod 30 are respectively connected with the top cover 10 and the bottom plate 20 to limit the distance between the top cover 10 and the bottom plate 20.

Adopt this scheme, through the one side butt with top cap 10 and nut, the opposite side butt of bottom plate 20 and nut to connect top cap 10 and bottom plate 20 through connecting rod 30, limited the distance between top cap 10 and the bottom plate 20, thereby carry out the axial to the nut spacing, avoided the not hard up or the drop of nut. Wherein the length of the connecting rod is 45-55 mm; the radial dimension of bottom plate is 60 ~ 80mm, and thickness is 10 mm. Wherein the base plate 20 is clamped between the nut and the work piece being joined after the nut is tightened. The nuts between the top cover 10 and the bottom plate 20 may be one or more, and the length of the connecting rod 30 is adapted to the thickness of one nut or the total thickness of a plurality of nuts.

The top cover 10 comprises a circular plate 11 and a limiting ring 12 arranged on the circular plate 11, wherein the diameter of the limiting ring 12 is smaller than that of the circular plate 11, the circular plate 11 is used for being abutted to the end face of the nut, and the limiting ring 12 is used for surrounding the nut so as to limit the relative position of the top cover 10 and the nut in the radial direction. The circular plate 11 is arranged and can be abutted with the end surface of the nut to limit the axial position of the nut, so that the nut is prevented from loosening or falling off; the limiting ring 12 is arranged around the nut, so that the top cover 10 is prevented from shaking left and right, and the stability and reliability of the top cover 10 are improved. In the embodiment, the diameter of the circular plate 11 is 60-80 mm, the thickness is 3-7mm, and preferably, the thickness is 5 mm; the height of the stop collar 12 is 8-12mm, preferably the height of the stop collar 12 is 10 mm. In order to avoid interference, a through hole is formed in the circular plate 11 for a bolt to pass through, and the diameter of the through hole is smaller than the outer diameter of the nut.

Further, the top cover 10 has a fitting hole 13, the bottom plate 20 has a locking groove 21 corresponding to the fitting hole 13, one end of the connecting rod 30 passes through the fitting hole 13 and is engaged with the end stop of the top cover 10, and the other end of the connecting rod 30 is locked with the locking groove 21. The installation hole 13 is arranged, so that one end of the connecting rod 30 can pass through the installation hole and is matched with the end face stop of the top cover 10; the bottom plate 20 is provided with a clamping groove 21 for being conveniently clamped with the other end of the connecting rod 30. By the above-described connection, the distance between the top cover 10 and the bottom plate 20 is defined. Wherein, the diameter of the assembly hole 13 is 2-6mm, preferably, the diameter of the assembly hole 13 is 4 mm.

The connecting rod 30 comprises a rod cap 31, a rod body 32 and a rod head 33 which are connected in sequence, the radial sizes of the rod cap 31 and the rod head 33 are all larger than the radial size of the rod body 32, wherein the end, facing the bottom plate 20, of the rod body 32 is clamped into the clamping groove 21, the rod head 33 is matched with the bottom plate 20 in a stopping mode in the axial direction of the rod body 32, the end, facing the top cover 10, of the rod body 32 penetrates through the assembling hole 13, and the rod cap 31 is matched with the end face of the top cover 10 in a stopping mode. The radial dimensions of the cap 31 and the tip 33 are set to be larger than the radial dimension of the shaft 32, so that the cap 31 and the tip 10 are engaged with each other at the end surface, and the tip 33 is engaged with the engaging groove 21 and thus engaged with the bottom plate 20. Wherein the diameter of the rod body 32 is 1-5mm, preferably, the diameter of the rod body 32 is 3 mm.

In this embodiment, the slot 21 has an opening 211, the width of the opening 211 is smaller than the diameter of the rod 32, and the maximum radial dimension inside the slot 21 is larger than the diameter of the rod 32. The width of the opening 211 is smaller than the diameter of the rod body 32, so that the rod body 32 can be ensured to play a radial limiting role in the rod body 32 after being clamped into the clamping groove 21, and the rod body 32 is prevented from falling off; the maximum radial dimension inside the slot 21 is set to be larger than the diameter of the rod body 32, so that the rod body 32 can be smoothly clamped into the slot 21. Wherein, the bottom plate has the deformation volume near the position of opening part, is convenient for the body of rod 32 card to go into in the draw-in groove 21.

Wherein, the side of the bottom plate 20 facing away from the top cover 10 is provided with a groove 22, the groove 22 is communicated with the clamping groove 21, and the groove 22 is used for accommodating the rod head 33. By providing the groove 22, the club head 33 can be avoided after the club body 32 is inserted into the engaging groove 21, so that the club head 33 does not protrude out of the sole plate 20 and interfere with a connected workpiece.

Specifically, the stop collar 12 has a circular or hexagonal configuration. The limiting ring 12 is set to be of a circular ring structure or a hexagonal structure, so that the top cover 10 can be prevented from shaking left and right, and the stability and reliability of the top cover 10 are improved.

In this embodiment, the inner diameter of the stop collar 12 is 35-50 mm, and the bottom plate 20 further has a round hole for avoiding the bolt. The inner diameter of the limiting ring 12 is limited within the numerical range, so that the limiting ring 12 can be arranged around the nut; the round holes are arranged, so that the bottom plate 20 can be conveniently and smoothly sleeved on the bolts. Wherein, the diameter of the round hole is 18-26 mm.

Specifically, the top cover 10, the link 30 and the base plate 20 are made of stainless steel. The top cover 10, the connecting rod 30 and the bottom plate 20 are made of stainless steel materials, and have the advantages of corrosion resistance, high strength and long service life.

In this embodiment, the assembly holes 13, the connecting rods 30 and the clamping grooves 21 are all plural, the plurality of assembly holes 13 are distributed in the circumferential direction of the top cover 10, the plurality of clamping grooves 21 are distributed in the circumferential direction of the bottom plate 20, the plurality of assembly holes 13 and the plurality of connecting rods 30 are arranged in a one-to-one correspondence manner, and the plurality of connecting rods 30 and the plurality of clamping grooves 21 are arranged in a one-to-one correspondence manner. The plurality of assembling holes 13, the connecting rod 30 and the clamping groove 21 are arranged, so that the stability and the reliability of the anti-loosening device can be improved.

The working process of the anti-loosening device in the embodiment is as follows:

1. installing bolts, and sleeving the bottom plate 20 into the bolts after the bolts are installed;

2. mounting a nut, and fastening the nut and the bolt;

3. pressing the top cap 10 with 4 links 30 against the nut;

4. the 4 links 30 are snapped into the base plate 20 to complete the installation.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A check device, comprising:

a cap (10), the cap (10) having a radial dimension greater than a radial dimension of the nut, the cap (10) being adapted to abut one side of the nut;

the radial dimension of the bottom plate (20) is larger than that of the nut, and the bottom plate (20) is used for being sleeved on a bolt connected with the nut and abutted against the other side of the nut;

a connecting rod (30), wherein two ends of the connecting rod (30) are respectively connected with the top cover (10) and the bottom plate (20) to limit the distance between the top cover (10) and the bottom plate (20).

2. Anti-loosening device according to claim 1, wherein the top cover (10) comprises a circular plate (11) and a limiting ring (12) arranged on the circular plate (11), the diameter of the limiting ring (12) being smaller than the diameter of the circular plate (11), wherein the circular plate (11) is used for abutting against the end face of the nut, and the limiting ring (12) is used for surrounding the nut so as to limit the relative position of the top cover (10) and the nut in the radial direction.

3. The anti-loosening device according to claim 1, wherein the top cover (10) is provided with a mounting hole (13), the bottom plate (20) is provided with a clamping groove (21) corresponding to the mounting hole (13), one end of the connecting rod (30) penetrates through the mounting hole (13) and is matched with the end face stop of the top cover (10), and the other end of the connecting rod (30) is clamped with the clamping groove (21).

4. The looseness prevention device according to claim 3, wherein the connecting rod (30) comprises a rod cap (31), a rod body (32) and a rod head (33) which are connected in sequence, the radial size of the rod cap (31) and the radial size of the rod head (33) are larger than the radial size of the rod body (32), the rod body (32) is clamped into the clamping groove (21) towards one end of the bottom plate (20), the rod head (33) is matched with the bottom plate (20) in a stopping mode in the axial direction of the rod body (32), one end, towards the top cover (10), of the rod body (32) penetrates through the assembly hole (13), and the rod cap (31) is matched with the end face of the top cover (10) in a stopping mode.

5. Anti-loosening device according to claim 4, characterized in that the slot (21) has an opening (211), the width of the opening (211) being smaller than the diameter of the rod (32), the maximum radial dimension inside the slot (21) being greater than the diameter of the rod (32).

6. Anti-loosening device according to claim 4, characterized in that the side of the base plate (20) facing away from the top cover (10) is provided with a recess (22), the recess (22) communicating with the slot (21), the recess (22) being intended to receive the rod head (33).

7. Anti-loosening device according to claim 2, characterized in that the stop collar (12) is of a circular or hexagonal configuration.

8. The anti-loosening device according to claim 2, wherein the inner diameter of the limiting ring (12) is 35-50 mm, and the bottom plate (20) is further provided with a round hole for avoiding the bolt.

9. Anti-loosening device according to claim 1, characterized in that the top cover (10), the connecting rod (30) and the bottom plate (20) are all made of stainless steel.

10. The looseness prevention device according to claim 3, wherein the assembly hole (13), the connecting rod (30) and the clamping groove (21) are all provided in plurality, the assembly holes (13) are distributed in the circumferential direction of the top cover (10), the clamping grooves (21) are distributed in the circumferential direction of the bottom plate (20), the assembly holes (13) and the connecting rods (30) are provided in a one-to-one correspondence, and the connecting rods (30) and the clamping grooves (21) are provided in a one-to-one correspondence.