Telescopic ladder hook

By designing the telescopic ladder hook, including the limiting parts, hoops and rotating mechanism, the existing telescopic ladder is easily tilted and fall off when working on the cross beam, significantly improving the safety and stability of the work, and allowing the hook body to be positionally adjusted when not hanging on the cross beam.

CN222542342UActive Publication Date: 2025-02-28QINGDAO FUYOU TOOLS CO LTD
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Patent Information

Application Number
CN202421118760.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-22
Publication Date
2025-02-28
Estimated Expiration
2034-05-22

AI Technical Summary

Technical Problem

The lack of limiting devices at the ends of the existing telescopic ladders, which makes it easy to fall and fall off when working on the cross beam, reducing the safety and stability of the climbing operation.

Method used

A telescopic ladder hook is designed, including a mounting position, installation mechanism and hook body parallel to the top. The installation mechanism consists of a hoop, a limiting member and a rotating mechanism. The hook body can be detachably installed on the top of the telescopic ladder body through the limiting member and a hoop, and rotates and adjusts through the rotating mechanism.

Benefits of technology

By adding limit parts, hoops and hook bodies, the problem of easy falling off of the telescopic ladder is solved, greatly increasing the safety and stability of the operation. The use of the rotating mechanism also allows the hook body to be positionally adjusted when not hung on the cross beam, avoiding affecting the normal use of the telescopic ladder.

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Abstract

The utility model belongs to the technical field of extension ladders, and particularly relates to an extension ladder hook which comprises an extension ladder body, two installation positions are arranged on the top of the extension ladder body in parallel, an installation mechanism and a hook body are installed on each installation position, and each installation mechanism comprises a hoop sleeve and a limiting piece arranged on the hoop sleeve. The hoop sleeve is arranged at the top end of the extension ladder body in a sleeving mode, one end of the limiting piece is inserted into the extension ladder body, a rotating mechanism connected with the hook body is further installed on one side of the hoop sleeve, and the rotating mechanism is used for driving the hook body to rotate and adjust. The limiting piece, the hoop sleeve and the hook body which are matched with one another are additionally arranged, the hook body is detachably installed on the top of the extension ladder body through the limiting piece and the hoop sleeve, the top end of the extension ladder body is hung on the cross beam through the hook body, the problem that the extension ladder body is prone to falling off is solved, and safety and stability of operation are greatly improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of telescopic ladders, and in particular relates to a telescopic ladder hook. Background Art

[0002] The telescopic ladder consists of two parts: a ladder section and a telescopic mechanism, and the ladder section can be telescoped and adjusted by the telescopic mechanism.

[0003] The existing telescopic ladder has no limiting device at the end, and is easy to tip over and fall off when working on a beam, which greatly reduces the safety and stability of the climbing operation. Utility Model Content

[0004] The purpose of the utility model is to provide a telescopic ladder hook to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic ladder hook, comprising: a telescopic ladder body with two mounting positions arranged in parallel on the top, each of the mounting positions being equipped with a mounting mechanism and a hook body, the mounting mechanism comprising a hoop and a limiting piece arranged on the hoop, the hoop being arranged on the top of the telescopic ladder body, and one end of the limiting piece being inserted into the telescopic ladder body.

[0006] Preferably, a rotating mechanism connected to the hook body is also installed on one side of the hoop, and the rotating mechanism is used to drive the hook body to perform rotation adjustment.

[0007] Preferably, the rotating mechanism includes a rotating seat and a rotating member longitudinally rotatably mounted on the rotating seat, the hoop is provided with a connecting seat, one end of the rotating seat is detachably mounted on the connecting seat, and the bottom end of the hook body is mounted on the rotating member.

[0008] Preferably, a plug hole is provided on one side of the connecting seat close to the rotating seat, one end of the plug rod is plugged into the plug hole, a positioning hole is penetrated on the connecting seat through which the plug rod passes, and a positioning pin is plugged into the positioning hole.

[0009] Preferably, the rotating member includes a rotating rod and a plug, a rotating groove is longitudinally penetrated on the rotating seat, one end of the rotating rod is movably inserted in the rotating groove, the outer diameter of the rotating rod is smaller than the diameter of the bottom end of the hook body, the plug is arranged at the bottom of the rotating seat, and one end of the plug extends into the rotating rod.

[0010] Preferably, a screw is provided on one side of the plug close to the rotating rod, and a threaded hole for accommodating the screw is provided at the bottom end of the rotating rod.

[0011] Preferably, a latch rod for limiting the rotation of the rotating rod is also installed on the outside of the rotating seat, and one end of the latch rod can be inserted into the rotating rod.

[0012] Preferably, a mounting seat is also installed on the rotating seat, the latch rod is arranged through the mounting seat, a baffle welded on the latch rod is movably installed in the mounting seat, a spring abutting against the baffle is installed in the mounting seat, and the spring is sleeved on the latch rod.

[0013] Preferably, two latch holes are symmetrically provided on the outer wall of the rotating rod, and one end of the latch rod can be movably inserted into the two latch holes respectively.

[0014] Preferably, the limiting member comprises a fastening bolt, the fastening bolt penetrates and is threadedly connected to the hoop, and one end of the fastening bolt extends into the telescopic ladder body.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model provides a limiter, a hoop and a hook body that cooperate with each other. The hook body can be detachably installed on the top of the telescopic ladder body through the limiter and the hoop. The top of the telescopic ladder body is hung on the crossbeam through the hook body, which solves the problem of easy falling off and greatly increases the safety and stability of the operation.

[0017] (2) The utility model has an additional rotating mechanism, through which the position of the hook body can be adjusted. When the telescopic ladder body is not hung on the crossbeam, the hook end of the hook body is directed toward one side of the telescopic ladder body to prevent the hook body from affecting the normal use of the telescopic ladder body.

[0018] (3) The utility model provides mutually matching plug-in holes, plug-in rods and positioning pins, and the rotating seat can be detachably installed on one side of the hoop sleeve through the plug-in holes, the plug-in rods and the positioning pins, so that the hoop sleeve and the hook body form a modular structure, which is convenient for later maintenance and replacement.

[0019] (4) The utility model provides an additional latch rod, which can prevent the hook body from rotating on the rotating seat when the latch rod is inserted into the rotating rod, thereby improving the stability of the hook body hanging on the beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side view of the utility model;

[0021] Figure 2 It is a top view of the hook body, rotating seat and hoop sleeve of the utility model;

[0022] Figure 3It is a partial matching schematic diagram of the rotating rod, rotating seat, plug-in rod and hoop sleeve of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the hook body of the utility model;

[0024] Figure 5 It is a schematic diagram of the matching of the latch rod, the rotating seat, the spring and the mounting seat of the utility model;

[0025] Figure 6 for Figure 1 Enlarged view of point A in the middle;

[0026] In the figure: 1. telescopic ladder body; 2. fastening bolt; 3. hoop; 4. hook body; 5. mounting seat; 6. latch rod; 7. connecting seat; 8. plug rod; 9. rotating seat; 10. rotating rod; 11. screw rod; 12. plug; 13. rotating groove; 14. plug hole; 15. positioning pin; 16. positioning hole; 17. threaded hole; 18. latch hole; 19. spring; 20. baffle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] refer to Figure 1 As shown, the utility model provides a telescopic ladder hook, comprising: a telescopic ladder body 1 with two mounting positions arranged in parallel on the top, each mounting position is installed with a mounting mechanism and a hook body 4, the mounting mechanism comprises a hoop 3 and a limiting member arranged on the hoop 3, the hoop 3 is sleeved on the top of the telescopic ladder body 1, and one end of the limiting member is inserted into the telescopic ladder body 1.

[0029] As described above, when using the telescopic ladder body 1, the hook body 4 and the mounting mechanism provided by the utility model, the hook body 4 is detachably mounted on the telescopic ladder body 1 through the hoop 3, and the hoop 3 is detachably mounted on the telescopic ladder body 1 through the limiter, thereby improving the stability of the telescopic ladder body 1 when used on the crossbeam by adding the hook body 4 to the telescopic ladder body 1.

[0030] Further, in order to facilitate the detachable installation of the hoop 3 on the telescopic ladder body 1, refer to Figure 2As shown, the limiting member includes a fastening bolt 2, which is threaded through a hoop 3, and one end of the fastening bolt 2 extends into the telescopic ladder body 1. The hoop 3 is sleeved on the telescopic ladder body 1, and the hoop 3 is detachably mounted on the telescopic ladder body 1 through the fastening bolt 2, so that the hook body 4 can be detachably mounted on the telescopic ladder body 1.

[0031] In the present utility model, combined with Figure 3 As shown, a rotating mechanism connected to the hook body 4 is also installed on one side of the hoop 3 of this embodiment, and the rotating mechanism is used to drive the hook body 4 to rotate and adjust.

[0032] Combination Figure 3-4 As shown, the rotating mechanism includes a rotating seat 9 and a rotating member longitudinally rotatably mounted on the rotating seat 9, a connecting seat 7 is provided on the hoop 3, one end of the rotating seat 9 is detachably mounted on the connecting seat 7, and the bottom end of the hook body 4 is mounted on the rotating member.

[0033] As described above, when using the rotating mechanism provided by the utility model, the rotating seat 9 in the rotating mechanism provides a rotating installation position for the hook body 4, the rotating seat 9 is detachably mounted on the hoop 3 through the connecting seat 7, and the hook body 4 is rotatably mounted on the rotating seat 9 through a rotating member, thereby facilitating the adjustment of the position of the hook end of the hook body 4.

[0034] Further, in order to improve the stability of the hook body 4 when it is unfolded or stored, refer to Figure 3 As shown, a plug hole 14 is provided on one side of the connection seat 7 near the rotating seat 9, one end of the plug rod 8 is plugged into the plug hole 14, and a positioning hole 16 is penetrated on the connection seat 7 through the plug rod 8, and a positioning pin 15 is plugged into the positioning hole 16. The rotating seat 9 is detachably mounted on the hoop 3 through the plug hole 14, the plug rod 8, the positioning pin 15 and the positioning hole 16, so that the hoop 3 or the hook body 4 can be easily repaired and replaced.

[0035] Further, in order to facilitate the hook body 4 to rotate on the rotating seat 9, refer to Figure 3 As shown, the rotating member includes a rotating rod 10 and a plug 12. A rotating groove 13 is longitudinally penetrated on the rotating seat 9. One end of the rotating rod 10 is movably inserted in the rotating groove 13. The outer diameter of the rotating rod 10 is smaller than the diameter of the bottom end of the hook body 4. The plug 12 is arranged at the bottom of the rotating seat 9, and one end of the plug 12 extends into the rotating rod 10. The rotating rod 10 is rotatably installed on the rotating seat 9 through the rotating groove 13, and the plug 12 prevents the rotating rod 10 from being separated from the rotating seat 9.

[0036] Further, in order to allow the hook body 4 to be disassembled and assembled on the rotating seat 9, refer to Figure 3-4As shown, a screw rod 11 is provided on one side of the plug 12 close to the rotating rod 10, and a threaded hole 17 for accommodating the screw rod 11 is provided at the bottom end of the rotating rod 10. When one end of the rotating rod 10 is movably inserted into the rotating groove 13, the plug 12 is detachably attached to the rotating rod 10 at the bottom of the rotating seat 9 through the screw rod 11 and the threaded hole 17, thereby preventing the rotating rod 10 from being separated from the rotating groove 13.

[0037] In the present utility model, combined with Figure 2 and Figure 4-6 As shown, a latch rod 6 for limiting the rotation of the rotating rod 10 is also installed on the outside of the rotating seat 9 of this embodiment, and one end of the latch rod 6 can be inserted into the rotating rod 10.

[0038] Combination Figure 4 As shown, a mounting seat 5 is also installed on the rotating seat 9, and a latch rod 6 is set through the mounting seat 5. A baffle 20 welded on the latch rod 6 is movably installed in the mounting seat 5, and a spring 19 abutting against the baffle 20 is installed in the mounting seat 5, and the spring 19 is sleeved on the latch rod 6.

[0039] As mentioned above, when using the latch rod 6 provided by the utility model, the latch rod 6 is movably mounted on the rotating seat 9 through the mounting seat 5. Through the elastic force of the baffle 20 and the spring 19, one end of the latch rod 6 can always be kept inserted into the rotating rod 10 to prevent the rotating rod 10 from rotating on the rotating seat 9.

[0040] Further, in order to facilitate the insertion of the latch rod 6 into the rotating rod 10, refer to Figure 5 As shown, two latch holes 18 are symmetrically provided on the outer wall of the rotating rod 10, and one end of the latch rod 6 can be movably inserted into the two latch holes 18. When the hook end of the hook body 4 is away from one side of the telescopic ladder body 1, one of the latch holes 18 is on one side of the latch rod 6, and at this time, one end of the latch rod 6 is inserted into the latch hole 18, and at this time, the hook body 4 cannot be installed on the rotating seat 9, thereby improving the stability of the hook body 4 hanging on the beam. When the hook end of the hook body 4 is close to one side of the telescopic ladder body 1, the other latch hole 18 is on one side of the latch rod 6, and at this time, one end of the latch rod 6 is inserted into the latch hole 18, so as to prevent the hook body 4 from shaking on the telescopic ladder body 1.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic ladder hook, characterized in that: include: A telescopic ladder body (1) is provided with two mounting positions arranged in parallel at the top, each of the mounting positions being provided with a mounting mechanism and a hook body (4), the mounting mechanism comprising a hoop (3) and a limiting member arranged on the hoop (3), the hoop (3) being sleeved on the top end of the telescopic ladder body (1), and one end of the limiting member being plugged into the telescopic ladder body (1).

2. A telescopic ladder hook according to claim 1, characterized in that: A rotating mechanism connected to the hook body (4) is also installed on one side of the hoop (3), and the rotating mechanism is used to drive the hook body (4) to perform rotation adjustment.

3. A telescopic ladder hook according to claim 2, characterized in that: The rotating mechanism comprises a rotating seat (9) and a rotating member mounted on the rotating seat (9) for longitudinal rotation; a connecting seat (7) is provided on the hoop (3); one end of the rotating seat (9) is detachably mounted on the connecting seat (7); and the bottom end of the hook body (4) is mounted on the rotating member.

4. The telescopic ladder hook according to claim 3, characterized in that: A plug hole (14) is provided on a side of the connecting seat (7) close to the rotating seat (9), a plug rod (8) is plugged into the plug hole (14), a positioning hole (16) is passed through the connecting seat (7) and passes through the plug rod (8), and a positioning pin (15) is plugged into the positioning hole (16).

5. The telescopic ladder hook according to claim 3, characterized in that: The rotating member comprises a rotating rod (10) and a plug (12); a rotating groove (13) is longitudinally penetrated on the rotating seat (9); one end of the rotating rod (10) is movably inserted into the rotating groove (13); the outer diameter of the rotating rod (10) is smaller than the diameter of the bottom end of the hook body (4); the plug (12) is arranged at the bottom of the rotating seat (9), and one end of the plug (12) extends into the rotating rod (10).

6. The telescopic ladder hook according to claim 5, characterized in that: A screw rod (11) is provided on one side of the plug (12) close to the rotating rod (10), and a threaded hole (17) for accommodating the screw rod (11) is provided at the bottom end of the rotating rod (10).

7. The telescopic ladder hook according to claim 5, characterized in that: A latch rod (6) for limiting the rotation of the rotating rod (10) is also installed outside the rotating seat (9), and one end of the latch rod (6) can be inserted into the rotating rod (10).

8. The telescopic ladder hook according to claim 7, characterized in that: The rotating seat (9) is also provided with a mounting seat (5), the latch rod (6) is arranged through the mounting seat (5), a baffle (20) welded to the latch rod (6) is movably mounted in the mounting seat (5), a spring (19) abutting against the baffle (20) is installed in the mounting seat (5), and the spring (19) is sleeved on the latch rod (6).

9. The telescopic ladder hook according to claim 7, characterized in that: Two latch holes (18) are symmetrically provided on the outer wall of the rotating rod (10), and one end of the latch rod (6) can be movably inserted into the two latch holes (18).

10. The telescopic ladder hook according to claim 1, characterized in that: The limiting member comprises a fastening bolt (2), the fastening bolt (2) penetrates and is threadedly connected to the hoop sleeve (3), and one end of the fastening bolt (2) extends into the telescopic ladder body (1).