CN220622402U - Screw with lock structure - Google Patents
Screw with lock structure Download PDFInfo
- Publication number
- CN220622402U CN220622402U CN202322400817.5U CN202322400817U CN220622402U CN 220622402 U CN220622402 U CN 220622402U CN 202322400817 U CN202322400817 U CN 202322400817U CN 220622402 U CN220622402 U CN 220622402U
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- China
- Prior art keywords
- screw
- washer
- head
- expansion
- cam
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 23
- 230000003449 preventive effect Effects 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 241001136800 Anas acuta Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
The utility model discloses a screw with a locking structure, and particularly relates to the field of screws. The anti-loosening washer mechanism comprises an upper washer, a lower washer, an upper cam, a lower cam, upper radial saw teeth and lower radial saw teeth, wherein the upper radial saw teeth drive the upper washer to rotate downwards through friction force generated by screwing a nut during use, then the lower cam arranged at the bottom of the upper washer and the upper cam arranged above the lower washer rotate to drive the lower washer to rotate, then the lower washer rotates to drive the lower radial saw teeth arranged at the bottom to rotate, and the saw teeth of the lower cam and the upper cam are clamped and overlapped to form an anti-loosening structure, so that a screw becomes firmer.
Description
Technical Field
The utility model relates to the field of screws, in particular to a screw with a locking structure.
Background
Screws are a general expression of fasteners, which are an indispensable industrial necessity in daily life and a tool for a fastener work that can be recycled, but in some projects, when a large shock is encountered, the screw is easy to loosen, so that a loose-proof structure is required to fix the fastener work more firmly.
Through retrieval, the prior patent (publication number: CN 214661345U) discloses a self-locking bolt assembly, which comprises a screw rod and a nut connected with the screw rod through internal threads, wherein the screw rod comprises a head part, a thread part and a pin tail part which are sequentially arranged, and a cutting groove is arranged between the thread part and the pin tail part; the nut is in threaded connection on the screw thread portion of screw rod, and the sleeve movably suit is on the screw rod to be located between the head of screw rod and the nut, one end face of sleeve and one terminal surface contact of nut, the surface that the screw rod head is close to sleeve one end is the conical surface, the internal surface that the sleeve is close to the one end of screw rod head is the conical surface with the conical surface complex of screw rod head.
The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: when the existing screw is used, the nut is connected to the threaded part of the screw rod, when the screw rod is vibrated greatly, the nut can be easily loosened, so that the situation that the nut falls off is increased, a hole for rust preventive oil is not formed in the outer wall of the sleeve, and the internal threaded part is rusted for a long time to reduce the fixing quality.
Thus, a screw with a locking structure is proposed for the above-mentioned problems.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a screw with a locking structure to solve the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the screw with the locking structure comprises a screw, a lock washer mechanism is connected below the screw in a penetrating manner, an expansion locking mechanism is arranged below the lock washer mechanism, the screw comprises a nut, a threaded portion and a supporting head, the threaded portion is movably connected below the nut, and the supporting head is fixedly connected below the threaded portion.
Preferably, the lock washer mechanism comprises an upper washer, a lower washer, an upper cam, a lower cam, upper radial saw teeth and lower radial saw teeth, wherein the upper radial saw teeth are formed in the upper portion of the upper washer, the lower cam is formed in the lower portion of the upper washer, the upper cam is formed in the upper portion of the lower washer, and the lower radial saw teeth are formed in the lower portion of the lower washer.
Preferably, the lower part and the screw through connection of lock washer mechanism have expansion locking mechanism, expansion locking mechanism includes fixed head, sleeve, first inflation soft head and the soft head of second inflation, the below fixedly connected with sleeve of fixed head, telescopic below fixedly connected with first inflation soft head and the soft head of second inflation.
Preferably, the anti-rust oil mechanism is arranged on the outer wall of the expansion locking mechanism, the anti-rust oil mechanism comprises an oil inlet hole and a strip-shaped oil drain hole, the oil inlet hole is arranged on the outer wall of the sleeve, and the strip-shaped oil drain hole is circumferentially arranged around the outer walls of the first expansion soft head and the second expansion soft head at intervals.
Preferably, the upper radial saw teeth drive the upper gasket to rotate downwards through friction force generated by screwing the nut, and the upper gasket is used for overlapping and clamping and connecting the saw teeth of the lower cam and the upper cam through downward rotation, so that the screw is firmer.
Preferably, the fixing head moves downwards through screwing the nut, the first expansion soft head and the second expansion soft head which are fixedly connected with the sleeve and the supporting head generate acting force to prop open to the periphery, and a locking structure is formed between the first expansion soft head and the supporting head and between the second expansion soft head and the supporting head.
Preferably, the rust preventive oil mechanism pours rust preventive oil through the oil inlet hole, and the strip-shaped oil drain hole discharges redundant rust preventive oil permeated by the oil inlet hole.
Preferably, a rotating structure is formed between the nut and the threaded part by screwing, and the supporting head and the threaded part are horizontally moved downwards by screwing the screw.
The utility model has the technical effects and advantages that:
compared with the prior art, this screw with locking-type structure includes through lock washer mechanism that the upper washer is connected, lower washer, go up the cam, lower cam, go up radial sawtooth and radial sawtooth down, go up radial sawtooth and drive the upper washer through the frictional force that twists the nut and rotate downwards during the use, then go up the lower cam that the washer bottom was offered and go up the cam rotation drive down the washer and carry out rotary operation that lower washer top was offered, then the lower radial sawtooth that the washer rotation drive bottom was offered carries out rotary operation, the block overlaps between the sawtooth of lower cam and upper cam and constitutes lock structure, make the screw become more firm.
Compared with the prior art, the screw with the locking structure comprises the fixed head, the sleeve, the first expansion soft head and the second expansion soft head which are connected through the expansion locking mechanism, the fixed head moves downwards through screwing the nut during use, then the first expansion soft head and the second expansion soft head are spread towards the periphery by acting force generated by the supporting head, the nut is firmly fixed, and the service life is prolonged.
Drawings
Fig. 1 is a schematic diagram of a front view structure of the present utility model.
Fig. 2 is a schematic view of the structure of the screw according to the present utility model.
FIG. 3 is a schematic view of the lock washer mechanism of the present utility model.
FIG. 4 is a schematic view of the expansion locking mechanism of the present utility model.
FIG. 5 is a schematic view of the rust preventive oil mechanism of the present utility model.
The reference numerals are: 1. a screw; 101. a nut; 102. a threaded portion; 103. a support head; 2. a lock washer mechanism; 201. an upper gasket; 202. a lower gasket; 203. an upper cam; 204. a lower cam; 205. upper radial serrations; 206. lower radial serrations; 3. an expansion locking mechanism; 301. a fixed head; 302. a sleeve; 303. a first inflatable soft head; 304. a second inflatable soft head; 4. a rust preventive oil mechanism; 401. an oil inlet hole; 402. and a strip oil drain hole.
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.
Example 1
The device shown in fig. 1 and 2 comprises a screw 1, wherein a lock washer mechanism 2 is connected below the screw 1 in a penetrating manner, an expansion locking mechanism 3 is arranged below the lock washer mechanism 2, the screw 1 comprises a nut 101, a threaded portion 102 and a supporting head 103, the nut 101 is movably connected with the threaded portion 102, and the supporting head 103 is fixedly connected below the threaded portion 102.
In operation, the lock washer mechanism 2 is used to be fitted over the lower outer wall of the screw 1, and then the nut 101 and the screw thread 102 are rotated to move the inner stay 103 downward through the screw thread 102, thereby connecting the inside.
Example two
On the basis of the first embodiment, the scheme in the first embodiment is further introduced in detail in combination with the following specific working modes, and the details are described below:
please refer to fig. 1-5;
as a preferred embodiment, the lock washer mechanism 2 includes an upper washer 201, a lower washer 202, an upper cam 203, a lower cam 204, an upper radial saw tooth 205, and a lower radial saw tooth 206, the upper radial saw tooth 205 is provided above the upper washer 201, the lower cam 204 is provided below the upper washer 201, the upper cam 203 is provided above the lower washer 202, and the lower radial saw tooth 206 is provided below the lower washer 202.
Wherein: when the locking structure is operated, the upper radial saw teeth 205 drive the upper washer 201 to rotate downwards through the friction force generated by screwing the nut 101, the upper washer 201 is in overlapped and clamped connection with the saw teeth of the upper cam 203 through the downward rotation, and a locking structure is formed between the lower cam 204 and the upper cam 203, so that the friction force is increased when the nut 101 is screwed, and the screw 1 is firmer.
As a preferred embodiment, the expansion locking mechanism 3 includes a fixed head 301, a sleeve 302, a first expansion soft head 303 and a second expansion soft head 304, the sleeve 302 is fixedly connected with the lower part of the fixed head 301, the first expansion soft head 303 and the second expansion soft head 304 are fixedly connected with the lower part of the sleeve 302, the outer wall of the expansion locking mechanism 3 is provided with an anti-rust oil mechanism 4, the anti-rust oil mechanism 4 includes an oil inlet 401 and a strip-shaped oil drain hole 402, the oil inlet 401 is provided on the outer wall of the sleeve 302, and the strip-shaped oil drain hole 402 is circumferentially provided around the outer walls of the first expansion soft head 303 and the second expansion soft head 304 at intervals.
Wherein: when the locking structure is operated, the first expansion soft head 303 and the second expansion soft head 304 and the supporting head 103 generate acting force to open to the periphery, so that the nut 101 is firmly fixed, and the service life is prolonged.
As a preferred embodiment, the rust preventive oil mechanism 4 includes an oil inlet 401 and a strip-shaped oil drain hole 402, the oil inlet 401 is formed in the outer wall of the sleeve 302, and the strip-shaped oil drain hole 402 is formed around the outer walls of the first expansion soft head 303 and the second expansion soft head 304 at intervals in the circumferential direction.
Wherein: when the lock-type structure is operated, the rust preventive oil mechanism 4 pours rust preventive oil through the oil inlet hole 401, then the rust preventive oil infiltrates into the surface of the screw part 102 through the oil inlet hole 401, and then the bar-shaped oil drain hole 402 drains the excessive rust preventive oil infiltrated by the oil inlet hole 401.
The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.
The working process of the utility model is as follows: firstly, by screwing the nut 101 to rotate downwards, then the upper washer 204 in the lock washer mechanism 2 is contacted with the bottom of the nut 101 through the upper radial saw teeth 205 arranged at the upper part to generate friction force to drive the rotation to move downwards, then the lower cam 204 arranged at the bottom of the upper washer 201 is rotated with the upper cam 203 arranged at the upper part of the lower washer 202 to drive the lower washer 202 to rotate, then the lower washer 202 is rotated to drive the lower radial saw teeth 206 arranged at the bottom to rotate, then the expansion locking mechanism 3 is contacted with the lower radial saw teeth 206 through the fixing head 301 fixedly connected at the upper part to generate acting force to move downwards, then the first expansion soft head 303 and the second expansion soft head 304 are driven to move downwards, then the acting force is generated to prop open to the periphery through the support head 103 fixedly connected at the lower part of the screw 1, then the fixing operation is performed, and then rust preventive oil can be poured into the oil inlet hole 401 of the rust preventive oil mechanism 4, and then the redundant rust preventive oil is discharged through the bar-shaped oil discharging hole 402, which is the working principle of the screw with a locking structure.
Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. Screw with lock structure, including screw (1), its characterized in that: the lower part of the screw (1) is connected with a lock washer mechanism (2) in a penetrating way, an expansion locking mechanism (3) is arranged below the lock washer mechanism (2), and the screw (1) comprises a nut (101), a thread part (102) and a supporting head (103); the lower part of the nut (101) is movably connected with a threaded part (102), and the lower part of the threaded part (102) is fixedly connected with a supporting head (103).
2. A screw with lock structure according to claim 1, characterized in that: the anti-loosening washer mechanism (2) comprises an upper washer (201), a lower washer (202), an upper cam (203), a lower cam (204), upper radial saw teeth (205) and lower radial saw teeth (206), wherein the upper radial saw teeth (205) are formed in the upper portion of the upper washer (201), the lower cam (204) is formed in the lower portion of the upper washer (201), the upper cam (203) is formed in the upper portion of the lower washer (202), and the lower radial saw teeth (206) are formed in the lower portion of the lower washer (202).
3. A screw with lock structure according to claim 2, characterized in that: the anti-loosening device is characterized in that an expansion locking mechanism (3) is connected below the anti-loosening washer mechanism (2) and the screw (1) in a penetrating manner, the expansion locking mechanism (3) comprises a fixed head (301), a sleeve (302), a first expansion soft head (303) and a second expansion soft head (304), the sleeve (302) is fixedly connected below the fixed head (301), and the first expansion soft head (303) and the second expansion soft head (304) are fixedly connected below the sleeve (302).
4. A screw with locking structure according to claim 3, characterized in that: the anti-rust oil mechanism (4) is arranged on the outer wall of the expansion locking mechanism (3), the anti-rust oil mechanism (4) comprises an oil inlet hole (401) and a strip-shaped oil drain hole (402), the oil inlet hole (401) is arranged on the outer wall of the sleeve (302), and the strip-shaped oil drain hole (402) is circumferentially arranged around the outer walls of the first expansion soft head (303) and the second expansion soft head (304) at intervals.
5. A screw with lock structure according to claim 2, characterized in that: the upper radial saw teeth (205) drive the upper gasket (201) to rotate downwards through friction force generated by screwing the nut (101), the upper gasket (201) is used for enabling the saw teeth of the lower cam (204) and the saw teeth of the upper cam (203) to be in overlapped and clamped connection through downward rotation, and a locking mechanism is formed between the lower cam (204) and the upper cam (203).
6. A screw with locking structure according to claim 3, characterized in that: the fixing head (301) moves downwards through screwing the nut (101), a first expansion soft head (303) and a second expansion soft head (304) which are fixedly connected with the sleeve (302) and the supporting head (103) generate acting force to prop open to the periphery, and a locking structure is formed between the first expansion soft head (303), the second expansion soft head (304) and the supporting head (103).
7. A screw with lock structure according to claim 4, wherein: the rust preventive oil mechanism (4) pours rust preventive oil into the oil inlet hole (401), and the strip-shaped oil drain hole (402) discharges redundant rust preventive oil permeated by the oil inlet hole (401).
8. A screw with lock structure according to claim 1, characterized in that: the nut (101) forms a rotating structure between the screw and the threaded part (102), and the supporting head (103) and the threaded part (102) horizontally move downwards by screwing the screw (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322400817.5U CN220622402U (en) | 2023-09-05 | 2023-09-05 | Screw with lock structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322400817.5U CN220622402U (en) | 2023-09-05 | 2023-09-05 | Screw with lock structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622402U true CN220622402U (en) | 2024-03-19 |
Family
ID=90224269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322400817.5U Active CN220622402U (en) | 2023-09-05 | 2023-09-05 | Screw with lock structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622402U (en) |
-
2023
- 2023-09-05 CN CN202322400817.5U patent/CN220622402U/en active Active
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