CN212337848U - Rotary self-locking bolt device - Google Patents
Rotary self-locking bolt device Download PDFInfo
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- CN212337848U CN212337848U CN202021979931.8U CN202021979931U CN212337848U CN 212337848 U CN212337848 U CN 212337848U CN 202021979931 U CN202021979931 U CN 202021979931U CN 212337848 U CN212337848 U CN 212337848U
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- shell
- central rod
- guide groove
- compression spring
- rotary
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Abstract
The utility model provides a rotary self-locking bolt device, which comprises a first shell, two second shells with the same structure, a central rod, a compression spring and a rotary cap; the two ends of the first shell are open, the side wall of the first shell is provided with a guide groove, and one end of the guide groove transversely penetrates through one open end to form a notch; two ends of the guide groove are vertically communicated with two clamping grooves; the two second shells are respectively in threaded connection with two ends of the first shell, and form a hollow cavity with the first shell; one end of the central rod is provided with a butt external thread, and the other end of the central rod is a smooth surface; the central rod is positioned in the hollow cavity, and two ends of the central rod respectively extend out of the second shell on two sides; a limiting block on the central rod is matched with a channel formed by the two clamping grooves and the guide groove to lock and unlock; the compression spring is arranged in a second shell connected with the notch end of the first shell; the rotating cap is sleeved on the threaded end of the central rod extending out of the second shell. The utility model discloses simple structure, convenient to use presses the rotatory cap of knob and can lock, unblock bolt.
Description
Technical Field
The utility model belongs to the technical field of nonstandard fastener, concretely relates to rotatory auto-lock bolt device.
Background
All generally utilize bolt device to carry out the locking of various equipment in daily life and industrial production process, bolt device on the present market either does not need automatic kick-back unblock function, or realizes that the adoption of kick-back unblock function compresses tightly the unlocking of locking button, controls with two prescription formulas, does not set up simultaneously and presses and prevent mistake keying structure, and the mistake bumps the injury that the device can effectually prevent equipment, cabinet door malfunction to cause etc. in daily life and industrial maintenance work.
Disclosure of Invention
To the weak point among the prior art, the utility model provides a rotatory auto-lock bolt device.
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
a rotary self-locking bolt device comprises a first shell, two second shells with the same structure, a central rod, a compression spring and a rotary cap;
the first shell is in a hollow cylindrical shape with two open ends, the outer walls of the two open ends are provided with external threads, the side wall of the first shell is provided with a guide groove, one end of the guide groove is close to the external threads of one open end, the other end of the guide groove transversely penetrates through the external threads of the other open end, and a gap is formed at the open end; meanwhile, clamping grooves are formed in the shell walls on the inner sides of the two external threads, and the two clamping grooves are vertically communicated with the guide groove and are arranged symmetrically relative to the center of the guide groove;
the two second shells are respectively in threaded connection with two ends of the first shell, and are combined with the first shell to form a hollow cavity;
the central rod is in a long rod shape, one end of the central rod is provided with a butt joint external thread, and the other end of the central rod is a smooth surface; the central rod is positioned in the hollow cavity, and two ends of the central rod respectively extend out of the second shells at two sides; the central rod is also provided with a limiting block which is matched with a channel formed by the two clamping grooves and the guide groove to perform locking and unlocking actions;
the compression spring is placed in a second shell connected with the notch end of the first shell, and the end part of the compression spring, which is close to the first shell, is compressed under the pressure from the limiting block;
the rotating cap is sleeved on a threaded end of the central rod extending out of the second shell through a threaded through hole formed in the center of the rotating cap.
Furthermore, the two second shells are hollow cylinders with openings at one end and openings at the other end, and the openings are provided with through holes, internal threads are arranged on the inner walls of the openings of the second shells, and the internal threads are matched with the external threads on the first shell.
Further, the threaded end of the center rod passes through a through hole of a second housing connected to the non-notched end of the first housing; the smooth end of the central rod penetrates through a through hole of the other second shell connected with the notch end of the first shell, and the central rod of the section penetrates through the center of the compression spring.
Furthermore, the limiting block comprises a round cake-shaped main body part and a convex block part arranged on the side edge of the main body part; the cake-shaped main body part extrudes or loosens the compression spring along with the movement of the central rod, and the convex block part moves back and forth along the channel formed by the two clamping grooves and the guide groove to stretch and limit.
Furthermore, the outer side of the rotating cap, which is connected with the threaded end extending out of the central rod, is fastened by a nut.
Has the advantages that: the utility model discloses rotatory auto-lock bolt device simple structure, convenient to use can accomplish the operation demand of bolts such as locking, quick unblock through pressing the knob.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the rotary cap of the present invention.
In the figure, 1-the first shell, 2-the second shell, 3-the central rod, 4-the compression spring, 5-the rotating cap, 6-the nut;
11-external thread, 12-guide groove, 13-notch, 14-clamping groove;
21-perforation, 22-internal thread;
31-butt external thread, 32-limit block, 321-main body part, 322-lug part;
51-through hole, 52-spacing collar.
Detailed Description
The present invention is described below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.
A rotary self-locking bolt device is shown in figures 1 and 2 and comprises a first shell 1, two second shells 2 with the same structure, a central rod 3, a compression spring 4 and a rotary cap 5;
the first shell 1 is a hollow cylinder with two open ends, the outer walls of the two open ends are provided with external threads 11, the side wall of the first shell 1 is provided with a guide groove 12, one end of the guide groove 12 is arranged close to the external thread 11a of one open end, the other end transversely penetrates through the external thread 11b of the other open end, and a gap 13 is formed at the open end; meanwhile, the inner side shell walls of the two external threads 11 are provided with clamping grooves 14, and the two clamping grooves 14 are vertically communicated with the guide groove 12 and are arranged in a central symmetry way relative to the guide groove 12;
the second shell 2 is a hollow cylinder with one open end and the other end provided with a seal of a perforation 21, and the inner wall of the open end is provided with an internal thread 22; the two second shells 2 are respectively in threaded connection with two ends of the first shell 1;
the central rod 3 is in a long rod shape, one end of the central rod is provided with a butt joint external thread 31, and the other end of the central rod is a smooth surface; the central rod 3 is provided with a limiting block 32, and the limiting block 32 comprises a round cake-shaped main body part 321 and a convex part 322 arranged at the side of the main body part 321; the central rod 3 is positioned in a hollow cavity formed by combining the first shell 1 and the two second shells 2; the threaded end of the central rod 3 passes through the through hole 21 of the second shell 2a connected with the non-notched end of the first shell 1, the smooth end of the central rod 3 passes through the through hole 21 of the other second shell 2b connected with the notched end of the first shell 1, and the lug part 322 of the limiting block 32 moves along the channel formed by the guide groove 12 and the two clamping grooves 14;
the compression spring 4 is placed in the second shell 2b connected with the gap end of the first shell 1, and the end part of the compression spring close to the first shell 1 is compressed by the pressure of the main body part 321 from the limiting block 32; the central rod 3 passes through the center of the compression spring 4;
the rotating cap 5 has a through hole 51 in its center, and the side wall of the through hole 51 is internally threaded so that it can be fitted over the threaded end of the central rod 3 projecting out of the second housing 2a and fastened from the outside thereof by means of a nut 6.
The lower part of the main body of the rotating cap 5 is further provided with a limiting ring 52, and the limiting ring 52 can fall on the outer side of the second shell 2a in the moving process.
The utility model discloses a theory of operation:
when the device is installed, the compression spring 4 is placed in the second shell 2b, the end of the central rod 3 without threads penetrates through the center of the compression spring 4 and then penetrates out of the through hole 21 of the second shell 2b, and the second shell 2b is in threaded connection with the notch end of the first shell 1; the other non-notched end of the first shell 1 is in threaded connection with the other second shell 2b, the threaded end of the central rod 3 extends out of the through hole 21 of the second shell 2a, and the threaded end of the central rod 3 is arranged on the rotating cap 5 and is fastened by a nut 6; when in use, the utility model is used,
(1) when the rotating cap 5 is pressed, the smooth end of the central rod 3 extends out of the end part of the other second shell 2b to reach the longest position, and then the rotating cap 5 is rotated to enable the limiting block 32 to be clamped into the clamping groove 14b close to the notch end, so that fixation is realized; at this time, the compression spring 4 is compressed by being pressed by the stopper 32;
(2) when the rotating cap 5 is rotated, the smooth end of the central rod 3 is pushed back into the other second shell 2b by the elastic force of the compression spring 4 to reach the minimum position, and the rotating cap 5 is rotated again, so that the limiting block 32 is clamped into the clamping groove 14a close to the non-notched end for limiting and fixing, and the mistaken locking and mistaken collision are prevented.
Claims (6)
1. A rotary self-locking bolt device is characterized by comprising a first shell, two second shells with the same structure, a central rod, a compression spring and a rotary cap;
the first shell is in a hollow cylindrical shape with two open ends, the outer walls of the two open ends are provided with external threads, the side wall of the first shell is provided with a guide groove, one end of the guide groove is close to the external threads of one open end, the other end of the guide groove transversely penetrates through the external threads of the other open end, and a gap is formed at the open end; meanwhile, clamping grooves are formed in the shell walls on the inner sides of the two external threads, and the two clamping grooves are vertically communicated with the guide groove and are arranged symmetrically relative to the center of the guide groove;
the two second shells are respectively in threaded connection with two ends of the first shell, and are combined with the first shell to form a hollow cavity;
the central rod is in a long rod shape, one end of the central rod is provided with a butt joint external thread, and the other end of the central rod is a smooth surface; the central rod is positioned in the hollow cavity, and two ends of the central rod respectively extend out of the second shells at two sides; the central rod is also provided with a limiting block which is matched with a channel formed by the two clamping grooves and the guide groove to perform locking and unlocking actions;
the compression spring is placed in a second shell connected with the notch end of the first shell, and the end part of the compression spring, which is close to the first shell, is compressed under the pressure from the limiting block;
the rotating cap is sleeved on a threaded end of the central rod extending out of the second shell through a threaded through hole formed in the center of the rotating cap.
2. The rotary deadbolt assembly of claim 1, wherein the second housing members are hollow cylinders open at one end and closed at the other end with a bore therethrough, the inner wall of the open end having internal threads that mate with the external threads on the first housing member.
3. The rotary deadbolt assembly of claim 1, wherein the threaded end of the center rod passes through a through-hole of a second housing coupled to the non-notched end of the first housing; the smooth end of the central rod penetrates through a through hole of the other second shell connected with the notch end of the first shell, and the central rod of the section penetrates through the center of the compression spring.
4. The rotary deadbolt assembly of claim 1, wherein said stop block comprises a pie-shaped body portion and a tab portion disposed on a side of the body portion; the cake-shaped main body part extrudes or loosens the compression spring along with the movement of the central rod, and the convex block part moves back and forth along the channel formed by the two clamping grooves and the guide groove to stretch and limit.
5. The rotary deadbolt assembly of claim 1, wherein the outer side of the swivel cap coupled to the threaded end of the center rod is secured with a nut.
6. The rotary deadbolt assembly of claim 1, wherein the lower portion of the body of the swivel cap further comprises a stop collar that is adapted to move outwardly of the second housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021979931.8U CN212337848U (en) | 2020-09-11 | 2020-09-11 | Rotary self-locking bolt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021979931.8U CN212337848U (en) | 2020-09-11 | 2020-09-11 | Rotary self-locking bolt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212337848U true CN212337848U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021979931.8U Active CN212337848U (en) | 2020-09-11 | 2020-09-11 | Rotary self-locking bolt device |
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| Country | Link |
|---|---|
| CN (1) | CN212337848U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012992A (en) * | 2020-09-11 | 2020-12-01 | 唐文龙 | Rotary self-locking bolt device |
| CN113152879A (en) * | 2021-04-16 | 2021-07-23 | 重庆陶筑建材科技有限公司 | A formwork support for construction |
| CN113640718A (en) * | 2021-08-27 | 2021-11-12 | 东莞金坤新材料股份有限公司 | Equipment for automatically detecting surface magnetism and polarity of magnet |
-
2020
- 2020-09-11 CN CN202021979931.8U patent/CN212337848U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012992A (en) * | 2020-09-11 | 2020-12-01 | 唐文龙 | Rotary self-locking bolt device |
| CN113152879A (en) * | 2021-04-16 | 2021-07-23 | 重庆陶筑建材科技有限公司 | A formwork support for construction |
| CN113152879B (en) * | 2021-04-16 | 2021-11-02 | 重庆陶筑建材科技有限公司 | A formwork support for construction |
| CN113640718A (en) * | 2021-08-27 | 2021-11-12 | 东莞金坤新材料股份有限公司 | Equipment for automatically detecting surface magnetism and polarity of magnet |
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