Telescopic support rod with anti-failure locking structure

Abstract

This utility model discloses a telescopic support rod with a failure-proof locking structure in the field of support rods. It includes a support rod sleeve and a telescopic support shaft slidably disposed inside the support rod sleeve. A limit support kit is fixedly connected to the top periphery of the support rod sleeve. A rotating support sleeve is fixedly connected to the inside of one side wall of the limit support kit. A spring support shaft is located above the rotating support sleeve on the limit support kit. A snap-fit ​​cover is rotatably connected to one side wall of the limit support kit via the spring support shaft. This utility model achieves locking and fixing of the telescopic support shaft through the cooperation of components such as a rotary button, a snap-fit ​​cover, and a limit support spring. Simultaneously, the cooperation of a limit pin with a limit ring groove and a pin rotation groove limits the rotation range of the rotary button, preventing the locking structure from failing due to accidental rotation or force, effectively improving the reliability and stability of locking, and avoiding unexpected slippage of the telescopic support shaft.

Description

Technical Field

[0001] This utility model relates to the field of support rods, specifically a telescopic support rod with a failure-prevention locking structure. Background Technology

[0002] Telescopic support rods are widely used in building construction, equipment support, and home furnishings to adjust the support height as needed. Existing telescopic support rods typically use a single locking mechanism (such as a knob-type lock or a snap-lock) to fix the position of the telescopic support shaft. However, during long-term use, the locking mechanism may fail due to wear, material fatigue, or unexpected external impacts, causing the telescopic support shaft to slip. This not only affects the stability of the support but also poses safety hazards, failing to meet the requirements of scenarios with high support reliability. Therefore, those skilled in the art have provided telescopic support rods with a fail-safe locking structure to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a telescopic support rod with a failure-proof locking structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A telescopic support rod with a failure-proof locking structure includes a support rod sleeve and a telescopic support shaft slidably disposed inside the support rod sleeve. A limit support kit is fixedly connected to the top periphery of the support rod sleeve. A rotating support sleeve is fixedly connected to the inside of one side wall of the limit support kit. A spring support shaft is located above the rotating support sleeve on the limit support kit. A snap-fit ​​cover is rotatably connected to one side wall of the limit support kit via the spring support shaft. A limit support spring is disposed around the spring support shaft, pressing against the snap-fit ​​cover and the limit support kit.

[0006] The fastening cover has a rotating hole, and an arc-shaped clearance groove is provided on one side of the rotating hole. A rotating button is movably disposed inside the rotating support sleeve, passing through the rotating hole. A limiting ring groove is provided at the bottom of the outer periphery of the rotating button. A limiting pin is fixedly connected between the inner wall of the rotating support sleeve and the limiting support kit, which cooperates with the limiting ring groove to provide a limiting position for the rotating button. A limiting pin with one end flush with the end of the limiting pin hole and the other end extending out of the limiting top hole is fixedly connected inside the limiting pin hole on the rotating button. A pin rotation groove is provided at the end of the rotating support sleeve to provide a limiting position for the limiting pin. Multiple directional locking holes with the same structure are sequentially provided at one end of the telescopic support shaft from top to bottom. A locking head that engages with the directional locking holes is integrally formed on the top of the fastening cover.

[0007] As a further embodiment of this utility model: a bottom support plate is provided at the bottom of the support rod sleeve, and the bottom surface of the bottom support plate is integrally formed with multiple anti-slip teeth.

[0008] As a further embodiment of this utility model: a top support plate is provided at the top of the telescopic support shaft, and a plurality of anti-slip teeth are integrally formed on the top surface of the top support plate. The bottom support plate and the telescopic support shaft, as well as the bottom support plate and the support rod sleeve, are rotatably connected by a hinge seat.

[0009] As a further improvement of this utility model: the hinge seat is connected to the bottom support plate and the telescopic support shaft, as well as the bottom support plate and the support rod sleeve, by screws.

[0010] As a further improvement of this utility model, the length of the limiting pin extending from the rotary button is less than the size of the clearance groove, so as to ensure that it can pass smoothly through the clearance groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model has high locking reliability: the telescopic support shaft is locked and fixed by the cooperation of components such as the rotary button, the snap-fit ​​cover, and the limiting support spring; at the same time, the rotation range of the rotary button is limited by the cooperation of the limiting pin, the limiting ring groove, and the pin rotation groove, which prevents the locking structure from failing due to accidental rotation or force, effectively improving the reliability and stability of locking and avoiding unexpected slippage of the telescopic support shaft.

[0013] 2. This utility model provides strong support stability: the anti-slip teeth on the bottom surface of the bottom support plate and the anti-slip teeth on the top surface of the top support plate increase the friction with the support surface and the supported surface, further improving the stability of the support; and the bottom support plate and the top support plate can be rotatably set through the hinge seat, which can better adapt to support surfaces with different inclinations, improving the practicality and applicability of the support rod. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0016] Figure 3 This utility model Figure 1 A magnified view of a section at point B in the middle;

[0017] Figure 4 This is a cross-sectional view of the limiting support kit in this utility model;

[0018] Figure 5 This is an exploded view of the limiting support kit portion in this utility model;

[0019] Figure 6 This is a structural diagram of the rotary button in this utility model;

[0020] Figure 7 This utility model Figure 5 A magnified view of a portion of the rotating support sleeve.

[0021] In the diagram: 1. Support rod sleeve; 2. Bottom support plate; 201. Anti-slip tooth one; 3. Hinge seat; 4. Limiting support kit; 5. Spring support shaft; 501. Directional locking hole; 6. Rotary button; 601. Limiting pin hole; 602. Limiting ring groove; 7. Clamp sleeve; 8. Locking screw; 9. Snap-on cover; 901. Rotating hole; 902. Clearance groove; 903. Snap-on head; 10. Limiting pin; 11. Limiting support spring; 12. Telescopic support shaft; 13. Top support plate; 1301. Anti-slip tooth two; 14. Rotating support sleeve; 1401. Pin rotating groove; 15. Limiting shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-7 In this embodiment of the utility model, a telescopic support rod with an anti-failure locking structure includes a support rod sleeve 1 and a telescopic support shaft 12 slidably disposed inside the support rod sleeve 1. A limit support kit 4 is fixedly connected to the top periphery of the support rod sleeve 1. A rotating support sleeve 14 is fixedly connected to the inside of one side wall of the limit support kit 4. A spring support shaft 5 is located above the rotating support sleeve 14 on the limit support kit 4. A fastening cover 9 is rotatably connected to one side wall of the limit support kit 4 through the spring support shaft 5. A limit support spring 11 is disposed around the spring support shaft 5 and is pressed between the fastening cover 9 and the limit support kit 4.

[0024] The snap-fit ​​cover 9 has a rotating hole 901 and an arc-shaped clearance groove 902 on one side of the rotating hole 901. The rotating support sleeve 14 has a rotating button 6 that passes through the rotating hole 901. The bottom of the rotating button 6 has a limiting ring groove 602. The inner wall of the rotating support sleeve 14 and the limiting support kit 4 are fixedly connected to a limiting pin 10 that cooperates with the limiting ring groove 602 to limit the rotating button 6. The limiting pin hole 601 on the rotating button 6 has a limiting pin 10 with one end flush with the end of the limiting pin hole 601 and the other end extending out of the limiting top hole. The end of the rotating support sleeve 14 has a pin rotation groove 1401 for limiting the pin 10. One end of the telescopic support shaft 12 has multiple directional locking holes 501 with the same structure from top to bottom. The top of the snap-fit ​​cover 9 has an integrally formed 903 that engages with the directional locking holes 501.

[0025] After adopting the above technical solution, the rotary button 6 drives the limiting pin 10 to rotate in the pin rotation groove 1401. At the same time, the limiting ring groove 602 cooperates with the limiting pin 10 to limit the axial displacement of the rotary button 6. When the rotary button 6 is rotated, when the limiting pin 10 rotates to the clearance groove 902, the fastening cover 9 is pressed, and the fastening cover 9 is unlocked. The fastening cover 9 is pushed to rotate along the spring support shaft 5, so that the top 903 of the fastening cover 9 is disengaged from the directional locking hole 501 of the telescopic support shaft 12. At this time, it is in the "unlocked state". Then, the rotary button 6 is rotated so that the limiting pin 10 rotates on the outside of the fastening cover 9 to achieve the limit. At this time, the position of the telescopic support shaft 12 inside the support rod sleeve 1 can be adjusted arbitrarily.

[0026] The support rod sleeve 1 has a bottom support plate 2 at its bottom, with multiple anti-slip teeth 201 integrally formed on its bottom surface. The telescopic support shaft 12 has a top support plate 13 at its top, with multiple anti-slip teeth 1301 integrally formed on its top surface. The bottom support plate 2 and the telescopic support shaft 12, as well as the bottom support plate 2 and the support rod sleeve 1, are rotatably connected by a hinge seat 3. The hinge seat 3 is connected to the bottom support plate 2, the telescopic support shaft 12, and the bottom support plate 2 and the support rod sleeve 1 by screws. The bottom support plate 2 enhances the friction with the support surface through the anti-slip teeth 201, and the top support plate 13 enhances the friction with the supported surface through the anti-slip teeth 1301. Both can rotate through the hinge seat 3, which can better adapt to different support surfaces and further improve the support stability.

[0027] The length of the limit pin 10 extending from the rotary button 6 is less than the size of the clearance groove 902, so as to ensure that it can pass smoothly through the clearance groove 902.

[0028] The working principle of this utility model is as follows:

[0029] When in use, if it is necessary to adjust the length of the telescopic support rod, rotate the rotary button 6: Rotating the rotary button 6 causes the limiting pin 10 to rotate in the pin rotation groove 1401. At the same time, the limiting ring groove 602 cooperates with the limiting pin 10 to limit the axial displacement of the rotary button 6. When rotating the rotary button 6, when the limiting pin 10 rotates to the clearance groove 902, press the fastening cover 9. The fastening cover 9 is unlocked. Push the fastening cover 9 to rotate along the spring support shaft 5, so that the top 903 of the fastening cover 9 disengages from the direction locking hole 501 of the telescopic support shaft 12. At this time, it is in the "unlocked state". Then rotate the rotary button 6 so that the limiting pin 10 rotates on the outside of the fastening cover 9 to achieve the limit. At this time, the position of the telescopic support shaft 12 inside the support rod sleeve 1 can be adjusted arbitrarily.

[0030] The telescopic support shaft 12 can slide up and down. After adjusting to the required length, rotate the rotary button 6 so that the limiting pin 10 is in the clearance groove 902. Under the elastic force of the support spring, the snap cover 9 rotates along the spring support shaft 5, and 903 is snapped into the direction locking hole 501 to achieve the limiting. At this time, the limiting pin 10 is located in the rotary button 6. Rotate the main direction button 6 so that the limiting pin 10 rotates to achieve the limiting of the snap, avoiding accidental release and preventing locking failure. At this time, it is in the "locked state" to achieve locking and fixing of the telescopic support shaft 12.

[0031] Due to the cooperation between the limiting pin 10, the limiting ring groove 602, and the pin rotation groove 1401, the rotation range of the rotary button 6 is limited, preventing it from failing to lock due to accidental force and improving the reliability of locking. The bottom support plate 2 at the bottom enhances the friction with the support surface through anti-slip teeth 1 201, and the top support plate 13 at the top enhances the friction with the supported surface through anti-slip teeth 2 1301. Both can rotate through the hinge seat 3, which can better adapt to different support surfaces and further improve the support stability.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A telescopic support rod with a failure-proof locking structure, comprising a support rod sleeve (1) and a telescopic support shaft (12) slidingly arranged inside the support rod sleeve (1), characterized in that: The top periphery of the support rod sleeve (1) is fixedly connected to a limiting support kit (4), and a rotating support sleeve (14) is fixedly connected inside one side wall of the limiting support kit (4). A spring support shaft (5) is located above the rotating support sleeve (14) on the limiting support kit (4). A snap-fit ​​cover (9) is rotatably connected to one side wall of the limiting support kit (4) through the spring support shaft (5). A limiting support spring (11) is provided around the spring support shaft (5) and is pressed between the snap-fit ​​cover (9) and the limiting support kit (4). The fastening cover (9) has a rotating hole (901) and an arc-shaped clearance groove (902) on one side of the rotating hole (901). A rotating button (6) is movably disposed inside the rotating support sleeve (14) and passes through the rotating hole (901). A limiting ring groove (602) is formed at the bottom periphery of the rotating button (6). A limiting clip that cooperates with the limiting ring groove (602) to limit the rotation of the button (6) is fixedly connected between the inner wall of the rotating support sleeve (14) and the limiting support kit (4). 10), a limiting pin (10) with one end flush with the end of the limiting pin hole (601) and the other end extending out of the limiting top hole is fixedly connected inside the limiting pin hole (601) on the rotary button (6). The end of the rotating support sleeve (14) is provided with a pin rotation groove (1401) for providing a limit for the limiting pin (10). One end of the telescopic support shaft (12) is provided with a plurality of directional locking holes (501) of the same structure from top to bottom. The top of the snap-fit ​​cover (9) is integrally formed with a (903) that engages with the directional locking hole (501).

2. The telescopic support rod with a failure-prevention locking structure according to claim 1, characterized in that: The bottom of the support rod sleeve (1) is provided with a bottom support plate (2), and the bottom surface of the bottom support plate (2) is integrally formed with multiple anti-slip teeth (201).

3. The telescopic support rod with a failure-prevention locking structure according to claim 2, characterized in that: The top of the telescopic support shaft (12) is provided with a top support plate (13), and the top surface of the top support plate (13) is integrally formed with multiple anti-slip teeth (1301). The bottom support plate (2) and the telescopic support shaft (12) and the bottom support plate (2) and the support rod sleeve (1) are rotatably connected by a hinge seat (3).

4. The telescopic support rod with a failure-prevention locking structure according to claim 3, characterized in that: The hinge seat (3) is connected to the bottom support plate (2), the telescopic support shaft (12), the bottom support plate (2), and the support rod sleeve (1) by screws.

5. The telescopic support rod with a failure-prevention locking structure according to claim 1, characterized in that: The length of the limiting pin (10) extending out of the rotary button (6) is less than the size of the clearance groove (902) to ensure that it can pass smoothly through the clearance groove (902).

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