CN221054124U - Locking device after screw fastening - Google Patents
Locking device after screw fastening Download PDFInfo
- Publication number
- CN221054124U CN221054124U CN202322873195.8U CN202322873195U CN221054124U CN 221054124 U CN221054124 U CN 221054124U CN 202322873195 U CN202322873195 U CN 202322873195U CN 221054124 U CN221054124 U CN 221054124U
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- Prior art keywords
- ratchet
- fastening screw
- screw
- locking
- loosening
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- 230000002265 prevention Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000012207 thread-locking agent Substances 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a locking device after screw fastening, and relates to the technical field of screw fixation. The anti-slip device comprises an anti-slip piece and a fastening screw, wherein the fastening screw is inserted into the anti-slip piece, the fastening screw comprises ratchet grooves which are uniformly distributed along the peripheral side surface of the top end, the anti-slip piece comprises anti-loosening ratchets which are uniformly distributed along the peripheral side surface of the inner wall, the anti-loosening ratchets are clamped with the adjacent ratchet grooves, the top of the anti-slip piece is provided with dismounting holes on two sides, and the anti-slip piece is used for locking the screwing state of the fastening screw. According to the utility model, the anti-skid piece is inserted at the outer side of the fastening screw, the screwing state of the fastening screw is locked through the anti-skid piece, and the anti-skid piece can be recycled through the dismounting hole.
Description
Technical Field
The utility model belongs to the technical field of screw fixation, and particularly relates to a locking device after screw fastening.
Background
The screw always needs to ensure the reliability of screwing when in use, so that various screw anti-slip structures exist, such as screw glue bonding, screw end punching and wire threading, spring washers, locking washers and the like, and the anti-loosening modes are various, however, the screw fixing structure has certain defects.
The screw thread adhesive needs time to enable the adhesive to exert effect, can not be used and can be effective, and is not easy to detach after being adhered; the hole direction of the hole for punching the end head of the screw for penetrating the steel wire cannot be determined, so that time and labor are wasted when the steel wire is penetrated, and the operation is not easy; the elasticity of the spring washer is easy to fail, and the excessive screwing force of the screw can cause that the spring washer can not rebound, so that the anti-loosening effect is lost; the locking washer is locked by adopting a tooth surface interlocking mode, the locking washer can be disassembled by adopting an ultra-large torque force when disassembled, the tooth surface can be damaged after the locking washer is disassembled, and the locking washer is replaced by a new one when being reused; the existing anti-loosening structure has the problems of inconvenient disassembly and assembly and difficult repeated use.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of utility model
The utility model aims to provide a locking device after screw fastening, which aims to solve the following technical problems: the existing screw anti-loosening structure has the problems that the disassembly and the assembly are inconvenient and the repeated use is difficult.
The aim of the utility model can be achieved by the following technical scheme:
The utility model provides a locking device behind screw fastening, includes anti-skidding piece and fastening screw, fastening screw peg graft in the anti-skidding piece, fastening screw is including the ratchet groove of evenly arranging along top week side, the anti-skidding piece is including the locking ratchet of evenly arranging along inner wall week side, locking ratchet with adjacent ratchet groove joint, the anti-skidding piece top all is provided with the dismantlement hole in both sides, the anti-skidding piece is used for locking fastening screw's state of screwing.
As a further scheme of the utility model: the anti-slip piece further comprises a wedging ring fixedly connected to the outer side of each anti-loosening ratchet, the bottom end of each anti-loosening ratchet is flush with the bottom end of the wedging ring, the top end of each anti-loosening ratchet is arranged in the middle of the wedging ring, and the inner sides of the anti-loosening ratchet are in tip shapes.
As a further scheme of the utility model: the outer side of the wedge ring is in a cone shape which gradually contracts inwards.
As a further scheme of the utility model: the disassembly holes are symmetrically formed in two sides of the top end of the wedging ring, and the top ends of the anti-loosening ratchets are arranged below the disassembly holes.
As a further scheme of the utility model: the ratchet tooth groove is a vertical bar-shaped groove and is in adaptive clamping connection with the inner side of the anti-loose ratchet.
As a further scheme of the utility model: the fastening screw is characterized by further comprising an inner hexagonal screw hole arranged in the middle of the top end, a screw rod is arranged at the bottom side of the fastening screw, the notch of the ratchet tooth groove and the locking ratchet tooth end are both offset towards the same direction, and the direction of the notch is the same as the screwing direction of the fastening screw.
The utility model has the beneficial effects that:
1. The ratchet grooves are uniformly distributed on the peripheral side surface of the end head of the fastening screw, the fastening screw is provided with the adaptive anti-slip piece, and the locking ratchet teeth uniformly distributed on the inner side of the anti-slip piece limit the clamping of the ratchet grooves, so that the device can lock and slip the screwing state of the fastening screw, the stability of locking the fastening screw is improved, and the locking of the anti-slip piece to the fastening screw is not limited by the screwing position of the fastening screw, so that the device has the capability of being applied to various locking requirement scenes;
2. Through set up symmetrical dismantlement hole in anti-skidding piece top both sides, can retrieve the reuse to the anti-skidding piece of beating into the counter bore with the help of the dismantlement piece, also make it possess repeatedly usable's characteristic when making the dismouting of device more convenient, improved the economic nature that the device used.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the construction of the cleat of the present utility model;
FIG. 3 is a schematic view of the structure of the fastening screw of the present utility model;
FIG. 4 is an exploded view of the present utility model;
FIG. 5 is a cross-sectional view of the present utility model in an installed state;
fig. 6 is a schematic view of the structure of the removing member for removing the slip preventing member according to the present utility model.
In the figure: 1. an anti-slip member; 11. an anti-loosening ratchet; 12. disassembling the hole; 13. a wedge ring; 2. a fastening screw; 21. ratchet tooth slot; 22. an inner hexagonal screw hole; 23. a screw; 3. a dismounting piece; 4. a fixing member; 5. a mounting member; 51. conical counter bore; 6. a screw washer; 7. an anti-drop gasket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 6, a locking device after screw fastening comprises an anti-slip part 1 and a fastening screw 2, wherein the fastening screw 2 is inserted into the anti-slip part 1, the fastening screw 2 comprises a plurality of ratchet grooves 21 uniformly distributed along the peripheral side surface of the top end, the anti-slip part 1 comprises a plurality of locking ratchet teeth 11 uniformly distributed along the peripheral side surface of the inner part, the locking ratchet teeth 11 are clamped with the adjacent ratchet grooves 21, and the top of the anti-slip part 1 is provided with dismounting holes 12 at two sides.
As shown in fig. 2 and 5, the anti-slip part 1 further comprises a wedging ring 13, the bottom of the anti-loosening ratchet 11 is flush with the bottom of the wedging ring 13, the top end of the anti-loosening ratchet 11 is arranged in the middle of the wedging ring 13, the inner side end of the anti-loosening ratchet 11 is in a tip shape, so that the anti-loosening ratchet is convenient to be clamped with the ratchet slot 21, and meanwhile, because the anti-loosening ratchet is in a tip shape, when in use, workers need to be prevented from directly contacting hands accidentally, so that the top of the anti-loosening ratchet 11 is away from the wedging ring 13 by a certain distance, and the use safety is ensured;
Preferably, the outer side of the wedging ring 13 is in a tapered state (see fig. 5) which gradually contracts inwards, and the anti-skid member 1 is fixed by inserting and embedding the fastening screw 2 in the inner part when in use, so that when the anti-skid member is inserted into a countersink position at an installation position, the anti-skid member is subjected to pressure of the side wall of the countersink in a gradually downward process, and is transmitted to the inner wall to achieve the purpose of extruding the fastening screw 2, and compared with the side surface of the anti-skid member which is uniformly stressed when being installed on the side wall of a straight surface, the tapered surface is enabled to be pressed down to a pretension position at one part of the countersink in the use process, namely the tapered external surface is easier to achieve the locking effect when in insertion; it should be noted that, when the counterbore is actually machined industrially, because the accuracy of the counterbore is not high, most of the counterbore actually used is a tapered joint surface which gradually contracts inwards, i.e. the tapered surface of the wedging ring 13 also fits the joint surface actually installed, and in addition, the outer side surface of the wedging ring 13 is not limited to the tapered surface;
The dismounting holes 12 are symmetrically formed in the two sides of the top end of the wedging ring 13, the top end of the anti-loosening ratchet 11 is positioned below the dismounting holes 12, so that a worker can effectively avoid contact with the anti-loosening ratchet 11 when dismantling the anti-loosening element 1, and when the fixed fastening screw 2 needs to be dismantled, the worker can insert the dismounting hole 12 into the inner side of the anti-loosening element 1 through the dismounting element 3 and pull out the anti-loosening element 1 outwards, so that the anti-loosening element 1 can be reused, and the convenience of dismounting and the reusability in use are improved; it should be noted that, the dismounting piece 3 (see fig. 6) is a U-shaped elastic steel rod, the two sides of the bottom end are provided with inserting rods matched with the dismounting holes 12, when in use, the inserting rods at the two sides are inserted into the dismounting holes 12 through the internal pressure main rod, and then the anti-skid piece 1 can be pulled out, and in addition, the tools used for dismounting the anti-skid piece 1 include but are not limited to the dismounting piece 3.
The shape of the ratchet tooth groove 21 of the fastening screw 2 is matched with the inner side of the locking ratchet tooth 11 in a clamped manner, the fastening screw 2 also comprises an inner hexagonal screw hole 22 in the middle of the top end, a screw rod 23 is arranged at the bottom side of the fastening screw 2, and threads (not shown) are arranged on the screw rod 23 along the peripheral side surface; the joint surfaces of the ratchet grooves 21 and the anti-loosening ratchet 11 are laterally arranged, and the lateral directions of the ratchet grooves 21 and the anti-loosening ratchet 11 are in the same direction as the screwing direction of the fastening screw 2 (see figure 1), namely, when the fastening screw 2 rotates in the loosening rotation direction under the action of external force, the anti-loosening ratchet 11 directly props against the ratchet grooves 21, so that the aim of strengthening the locking effect is fulfilled.
Working principle: as shown in fig. 5, when the fixing member 4 is required to be connected to the mounting member 5, firstly, the screw washer 6 and the anti-falling washer 7 are placed in the tapered counter bore 51 of the mounting member 5, the screw rod 23 of the fastening screw 2 is screwed into the screw hole between the fixing member 4 and the mounting member 5 to finish the preliminary locking of the fixing member 4 and the mounting member 5, then the anti-skid member 1 is inserted into the tapered counter bore 51, and the outer side of the wedging ring 13 of the anti-skid member 1 is abutted against the inner side wall of the tapered counter bore 51 by hammering the top end of the anti-skid member 1, so that the effect of stably mounting the fastening screw 2 is achieved;
Furthermore, in the actual installation process, part of the fixing part 4 cannot be in an excessively locked state with the installation part 5 so as to avoid the influence of excessive stress on the service life, a certain reserved buffer space needs to be reserved between the fixing part and the installation part 5, the end of the fastening screw 2 is locked by the anti-skid part 1, the locking purpose is not achieved through the connection state of the reinforcing screw 23, namely, when the fastening screw 2 is in a semi-fixed state, the end of the fastening screw is still in a locked state, so that the fastening screw has the capability of being applied to various screw anti-skid scenes, and the application range of the device in use is widened; when the anti-slip piece 1 is inserted, the butt joint of the anti-loosening ratchet 11 and the ratchet slot 21 is needed to be paid attention to, when the unlocking fastening screw 2 is needed to be disassembled, the anti-slip piece 1 can be pulled out by the aid of the disassembling piece 3, and then the fastening screw 2 can be unlocked, so that the device has the capabilities of portability, disassembly and reusability.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (6)
1. The utility model provides a locking device behind screw fastening, its characterized in that, including anti-skidding piece (1) and fastening screw (2), fastening screw (2) peg graft in anti-skidding piece (1), fastening screw (2) are including ratchet groove (21) along the even arrangement of top week side, anti-skidding piece (1) are including locking ratchet (11) along the even arrangement of inner wall week side, locking ratchet (11) with adjacent ratchet groove (21) joint, anti-skidding piece (1) top all is provided with in both sides and dismantles hole (12), anti-skidding piece (1) are used for the locking the state of screwing of fastening screw (2).
2. The post-fastening screw locking device according to claim 1, wherein the anti-slip member (1) further comprises a wedging ring (13) fixedly connected to the outer side of each locking ratchet (11), the bottom end of each locking ratchet (11) is flush with the bottom end of each wedging ring (13), the top end of each locking ratchet is arranged in the middle of each wedging ring (13), and the inner sides of the locking ratchet (11) are pointed.
3. A post-tightening locking device according to claim 2, characterized in that the outside of the wedging ring (13) is in the form of an inwardly tapering cone.
4. The post-screw tightening anti-loosening device according to claim 2, wherein the disassembly holes (12) are symmetrically arranged on both sides of the top end of the wedging ring (13), and the top ends of the anti-loosening ratchets (11) are arranged below the disassembly holes (12).
5. The post-screw tightening anti-loosening device according to claim 1, wherein the ratchet groove (21) is a vertical bar-shaped groove and is in shape-adapting clamping connection with the inner side of the anti-loosening ratchet (11).
6. The post-fastening screw loosening prevention device according to claim 1, wherein the fastening screw (2) further comprises an inner hexagonal screw hole (22) arranged in the middle of the top end, a screw rod (23) is arranged at the bottom side of the fastening screw (2), and the notch of the ratchet groove (21) and the tooth end of the loosening prevention ratchet (11) are both offset in the same direction, and the direction of the notch is the same as the screwing direction of the fastening screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322873195.8U CN221054124U (en) | 2023-10-25 | 2023-10-25 | Locking device after screw fastening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322873195.8U CN221054124U (en) | 2023-10-25 | 2023-10-25 | Locking device after screw fastening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221054124U true CN221054124U (en) | 2024-05-31 |
Family
ID=91198357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322873195.8U Active CN221054124U (en) | 2023-10-25 | 2023-10-25 | Locking device after screw fastening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221054124U (en) |
-
2023
- 2023-10-25 CN CN202322873195.8U patent/CN221054124U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |