One-way locking push rod anchor bolt

Abstract

The utility model discloses a one-way locking push rod anchor bolt which comprises a shell, a limiting assembly, a pushing assembly and a C-shaped clamping spring, the limiting assembly is arranged in the shell, the pushing assembly is arranged at the bottom end of the limiting assembly, and the C-shaped clamping spring is arranged at the bottom end of the pushing assembly; by means of the design of the shell, the limiting assemblies, the pushing assembly and the C-shaped clamping spring, when the threaded rod is inserted into the shell, the threaded rod can push the symmetrically-arranged limiting assemblies to move in the direction close to the C-shaped clamping spring, so that the threaded rod can be inserted into the shell, and when the threaded rod moves in the direction close to the limiting assemblies, the pushing assembly can push the limiting assemblies to move in the direction close to the C-shaped clamping spring. The pushing spring can push the abutting section through the first gasket, meanwhile, the inclined section clamps the threaded rod under the action of the inclined groove section, the threaded rod is locked and the movement of the threaded rod is limited through mutual meshing of threads on the inner wall of the inclined section and threads on the outer wall of the threaded rod, and therefore the problem of looseness of the bolt does not need to be worried about.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor fittings, in particular to a push rod anchor bolt with one-way locking. Background Technique

[0002] In the pipeline installation of large shopping malls, ceiling technology is required, so long screws are used to suspend steel crossbars, and then the pipelines are installed at the top of the steel crossbars to complete the pipeline installation.

[0003] However, the fixing method of the long screw to the steel crossbar is to set nuts at the top and bottom of the steel crossbar respectively to clamp and fix the steel crossbar. This method requires regular inspection of the nuts to prevent displacement caused by nut loosening, resulting in the pipeline falling from a high place. When checking the loosening of the nuts, the staff also needs to climb high to reset them, which is not convenient to use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a push rod anchor bolt with one-way locking to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a push rod anchor bolt with one-way locking, including;

[0006] A housing, a limiting component, a pushing component and a C-shaped circlip. The limiting component is arranged inside the housing. The pushing component is arranged at the bottom end of the limiting component. The pushing component is used to push the limiting component. The C-shaped circlip is arranged at the bottom end of the pushing component. The C-shaped circlip is used to limit the movement of the pushing component;

[0007] The limiting component includes a clamping section. The top end of the clamping section is provided with an inclined section for guiding the movement of the clamping section. The top end of the clamping section is provided with a pressing section for contacting the pushing component. The top end of the inner wall of the clamping section is provided with threads.

[0008] Preferably, the bottom end of the inclined section is fixedly connected to the top end of the clamping section, and the bottom end of the clamping section is fixedly connected to the top end of the pressing section.

[0009] Preferably, the outer wall of the inclined section is provided with tooth grooves.

[0010] Preferably, the housing includes a first installation section. The top end of the first installation section is fixedly connected to a second installation section. The top end of the second installation section is fixedly connected to an inclined groove section. The top end of the inclined groove section is fixedly connected to a clamping section. The top end of the clamping section is fixedly connected to a limiting section.

[0011] Preferably, the first installation section is used for installing a pushing component, the pushing component includes a pushing spring, a first gasket and a second gasket are respectively arranged at the top end and the bottom end of the pushing spring, the first gasket is arranged at the bottom end of the pressing section, and the second gasket is arranged at the top end of the C-shaped circlip.

[0012] Preferably, a clamping groove is formed at the bottom end of the inner wall of the first installation section, and the C-shaped circlip is sleeved in the clamping groove.

[0013] Preferably, the inclined groove section is used to fit with the inclined section, and tooth blocks are arranged on the inner wall of the inclined groove section.

[0014] Preferably, a clamping spring is sleeved outside the clamping section, a steel cross bar is arranged at the bottom end of the clamping spring, and a threaded rod is inserted through the inside of the outer shell.

[0015] The technical effects and advantages of the present utility model:

[0016] With the design of the outer shell, the limiting component, the pushing component and the C-shaped circlip in the present utility model, when the threaded rod is inserted into the inside of the outer shell, at this time the threaded rod will push the symmetrically arranged limiting components to move towards the direction close to the C-shaped circlip, so that the symmetrically arranged limiting components will be misaligned and separated, enabling the threaded rod to be inserted into the inside of the outer shell. When the threaded rod moves towards the direction close to the limiting section, the pushing spring will push the pressing section through the first gasket. At the same time, under the action of the inclined groove section, the inclined section will clamp the threaded rod, and the threads on the inner wall of the inclined section will mesh with the threads on the outer wall of the threaded rod to lock the threaded rod and limit the movement of the threaded rod, thus eliminating the worry about the loosening of the bolt. Description of the Drawings

[0017] Figure 1 It is a schematic connection structure diagram of the anchor bolt and the screw rod of the present utility model.

[0018] Figure 2 It is a three-dimensional structure diagram of the anchor bolt of the present utility model.

[0019] Figure 3 It is a schematic front sectional structure diagram of the anchor bolt of the present utility model.

[0020] Figure 4 It is a three-dimensional structure diagram of the outer shell of the present utility model.

[0021] Figure 5 It is a three-dimensional structure diagram of the limiting component of the present utility model.

[0022] In the figure: 1. Outer shell; 11. First installation section; 12. Second installation section; 13. Inclined groove section; 14. Clamping section; 15. Limiting section; 2. Limiting component; 21. Clamping section; 22. Oblique section; 23. Pressing section; 3. Pushing component; 31. First gasket; 32. Pushing spring; 33. Second gasket; 4. C-shaped snap ring; 5. Threaded rod; 6. Steel cross bar; 7. Clamping snap ring. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The present invention provides a Figures 1-5 push rod anchor bolt with one-way locking as shown in the figure, including;

[0025] An outer shell 1, a limiting component 2, a pushing component 3 and a C-shaped snap ring 4. The limiting component 2 is arranged inside the outer shell 1, the pushing component 3 is arranged at the bottom end of the limiting component 2, the pushing component 3 is used to push the limiting component 2, and the C-shaped snap ring 4 is arranged at the bottom end of the pushing component 3, and the C-shaped snap ring 4 is used to limit the movement of the pushing component 3;

[0026] The limiting component 2 includes a clamping section 21. An inclined section 22 for guiding the movement of the clamping section 21 is arranged at the top end of the clamping section 21. A pressing section 23 for contacting the pushing component 3 is arranged at the top end of the clamping section 21. Threads are provided at the top end of the inner wall of the clamping section 21.

[0027] Specifically, the bottom end of the inclined section 22 is fixedly connected to the top end of the clamping section 21, the bottom end of the clamping section 21 is fixedly connected to the top end of the pressing section 23, and tooth grooves are provided on the outer wall of the inclined section 22.

[0028] Furthermore, two limiting components 2 are arranged, and the two limiting components 2 are symmetrically arranged to form a quasi-cylindrical body. The clamping section 21, the inclined section 22 and the pressing section 23 are integrally cast. The inclination angle of the inclined section 22 is the same as the inclination angle of the inclined groove section 13. The threads on the inner wall of the clamping section 21 are meshed with the threads on the outer wall of the threaded rod 5. The tooth grooves on the outer wall of the inclined section 22 are clamped with the tooth blocks on the inner wall of the inclined groove section 13.

[0029] Specifically, the outer shell 1 includes a first mounting section 11. The top end of the first mounting section 11 is fixedly connected to a second mounting section 12. The top end of the second mounting section 12 is fixedly connected to an inclined groove section 13. The top end of the inclined groove section 13 is fixedly connected to a clamping section 14. The top end of the clamping section 14 is fixedly connected to a limiting section 15. The first mounting section 11 is used for mounting the pushing component 3. The pushing component 3 includes a pushing spring 32. A first gasket 31 and a second gasket 33 are respectively arranged at the top end and the bottom end of the pushing spring 32. The first gasket 31 is arranged at the bottom end of the pressing section 23. The second gasket 33 is arranged at the top end of the C-shaped circlip 4. A clamping groove is opened at the bottom end of the inner wall of the first mounting section 11. The C-shaped circlip 4 is sleeved in the clamping groove. The inclined groove section 13 is used for fitting with the inclined section 22. Tooth blocks are arranged on the inner wall of the inclined groove section 13.

[0030] Furthermore, the outer diameter of the limiting section 15 is 1.2 times the outer diameter of the clamping section 14. The pressing section 23 is arranged inside the first mounting section 11. The pressing section 23, the first gasket 31, the pushing spring 32, the second gasket 33 and the C-shaped circlip 4 are only in contact and not bonded or welded. The inner diameters of the first gasket 31, the pushing spring 32, the second gasket 33 and the C-shaped circlip 4 are all 1.01 times the inner diameter of the pressing section 23. The outer wall of the C-shaped circlip 4 is in contact with the inner wall of the clamping groove, so as to limit the movement of the C-shaped circlip 4 through the clamping groove, and the C-shaped circlip 4 limits the movement of the second gasket 33. The pushing spring 32 is in a compressed state inside the first mounting section 11.

[0031] Specifically, a clamping spring 7 is sleeved outside the clamping section 14. A steel cross bar 6 is arranged at the bottom end of the clamping spring 7. A threaded rod 5 is inserted through the inside of the outer shell 1.

[0032] Furthermore, a round hole is provided at the top of the steel cross bar 6, and the limiting section 15 and the clamping section 14 pass through the round hole. The size of the second installation section 12 is 1.1 times the diameter of the round hole. By clamping the clamping spring 7 on the outer wall of the clamping section 14, under the limitation of the clamping spring 7 and the second installation section 12, the housing 1 is connected and installed with the steel cross bar 6. At this time, the threaded rod 5 is inserted into the housing 1 from one end of the limiting section 15, and the end of the threaded rod 5 will push against the symmetrically arranged limiting components 2. At this time, the symmetrically arranged limiting components 2 will be misaligned, the limiting components 2 will push against the first gasket 31, and the first gasket 31 will further squeeze the pushing spring 32, so that the threaded rod 5 extends into the second installation section 12 and the first installation section 11, and thus penetrates through the housing 1. When the threaded rod 5 moves away from the first installation section 11, the thread on the outer wall of the threaded rod 5 drives the thread on the inner wall of the clamping section 21, so that the clamping section 21 drives the inclined section 22 to move towards the inclined groove section 13. Under the limitation of the tooth alveolar groove and the tooth block, the inclined section 22 cannot rotate. At the same time, the inclined surfaces of the inclined groove section 13 and the inclined section 22 make the symmetrically arranged clamping sections 21 fit tightly. The thread on the inner wall of the clamping section 21 engages with the thread on the outer wall of the threaded rod 5, so as to limit the movement of the threaded rod 5. At the same time, the inclined section 22 cannot continue to move towards the limiting section 15 under the limitation of the inclined groove section 13, so that the whole threaded rod 5 cannot continue to move, thus realizing the locking of the housing 1 and the threaded rod 5, and limiting the threaded rod 5 to only move out of the inside of the housing 1 unidirectionally.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A one-way locking push rod anchor bolt, characterized in that: include; A housing (1), a limiting component (2), a pushing component (3) and a C-shaped retaining spring (4), wherein the limiting component (2) is arranged inside the housing (1), the pushing component (3) is arranged at the bottom end of the limiting component (2), the pushing component (3) is used to push the limiting component (2), the C-shaped retaining spring (4) is arranged at the bottom end of the pushing component (3), and the C-shaped retaining spring (4) is used to limit the movement of the pushing component (3); The limiting component (2) comprises a clamping section (21), the top end of the clamping section (21) is provided with an oblique section (22) for guiding the movement of the clamping section (21), the top end of the clamping section (21) is provided with a pressing section (23) for contacting the pushing component (3), and the top end of the inner wall of the clamping section (21) is provided with a thread.

2. A one-way locking push rod anchor bolt according to claim 1, characterized in that: The bottom end of the oblique section (22) is fixedly connected to the top end of the clamping section (21), and the bottom end of the clamping section (21) is fixedly connected to the top end of the pressing section (23).

3. A one-way locking push rod anchor bolt according to claim 2, characterized in that: The outer wall of the oblique section (22) is provided with tooth grooves.

4. A one-way locking push rod anchor bolt according to claim 1, characterized in that: The housing (1) comprises a first mounting section (11), the top end of the first mounting section (11) being fixedly connected to a second mounting section (12), the top end of the second mounting section (12) being fixedly connected to an inclined groove section (13), the top end of the inclined groove section (13) being fixedly connected to a snap-fit ​​section (14), and the top end of the snap-fit ​​section (14) being fixedly connected to a limiting section (15).

5. A one-way locking push rod anchor bolt according to claim 4, characterized in that: The first mounting section (11) is used to mount a pushing assembly (3), the pushing assembly (3) comprising a pushing spring (32), the top and bottom ends of the pushing spring (32) being provided with a first gasket (31) and a second gasket (33), respectively, the first gasket (31) being provided at the bottom end of the pressing section (23), and the second gasket (33) being provided at the top end of the C-shaped retaining ring (4).

6. A one-way locking push rod anchor bolt according to claim 4, characterized in that: A slot is provided at the bottom end of the inner wall of the first mounting section (11), and the C-shaped retaining spring (4) is sleeved in the slot.

7. A one-way locking push rod anchor bolt according to claim 4, characterized in that: The inclined groove section (13) is used to fit with the inclined section (22), and a tooth block is provided on the inner wall of the inclined groove section (13).

8. A one-way locking push rod anchor bolt according to claim 4, characterized in that: The outer portion of the clamping section (14) is sleeved with a clamping spring (7), the bottom end of the clamping spring (7) is provided with a steel cross bar (6), and the interior of the housing (1) is interspersed with a threaded rod (5).

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