Heavy expansion hook
By designing the adjustment mechanism and clamping rod structure of the heavy-duty expansion hook, the problem of shaking and detachment of the expansion hook when hanging heavy objects is solved, and the stable hanging and safety of the heavy objects are achieved.
Patent Information
- Application Number
- CN202422996047.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing expansion hooks are prone to shaking when heavy objects are hung, causing the heavy objects to fall off, posing a safety hazard.
A heavy-duty expansion hook is designed, which includes an expansion hook base, an adjustment mechanism, a pressing plate, a return spring and a clamping rod. The stability of heavy objects during the hanging process is ensured through the elastic pressing of the adjustment mechanism and the fixation of the clamping rod.
It effectively prevents heavy objects from falling during the hanging process, improving the safety and stability of use.
Smart Images
Figure CN223411231U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expansion hooks, in particular to a heavy-duty expansion hook. Background Art
[0002] Expansion bolts are special threaded connectors used to fix pipe supports / hangers / brackets or equipment to walls, floor slabs, and columns. The principle is to drive the expansion bolt into a hole on the ground or wall, then tighten the nut on the expansion bolt with a wrench. The bolt moves outward, while the metal sleeve on the outside does not move. As a result, the big head under the bolt expands the metal sleeve, filling the entire hole. At this time, the expansion bolt cannot be pulled out. Extending the front end of the bolt and making it into a hook shape becomes an expansion hook, which is widely used.
[0003] Although the expansion hooks in existing life meet the needs of users to a certain extent, there are still certain defects in the use process. After the heavy objects are hung on the expansion hooks, the heavy objects are naturally hung, which causes the heavy objects to shake easily during the hanging process, and then the heavy objects are easily separated from the expansion hooks, causing the heavy objects to fall, and then the problem of affecting the safety of the expansion hooks is caused. The specific problems are as follows. Based on this, the utility model designs a heavy-duty expansion hook to solve the above problems. Utility Model Content
[0004] The utility model provides a heavy-duty expansion hook, which can effectively solve the problem raised in the above-mentioned background technology that after the heavy object is hung on the expansion hook, the heavy object is hung naturally, which causes the heavy object to shake easily during the hanging process, and then causes the heavy object to easily separate from the expansion hook and cause the heavy object to fall, thereby affecting the safety of using the expansion hook.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy-duty expansion hook, comprising an expansion hook base, one end of the bottom of the expansion hook base is fixedly connected to an adjustment mechanism, a pressing plate is installed at the bottom of the adjustment mechanism by screws, an adjustment threaded rod is threadedly connected to the inside of the expansion hook base, a fixed threaded rod is provided on the top of the adjustment threaded rod, a clamping rod is rotatably connected to the outside of the fixed threaded rod, and an extrusion nut is threadedly connected to the outside of the fixed threaded rod.
[0006] A heavy-duty expansion hook, preferably, a guide plate is welded to one end of the pressing plate.
[0007] A heavy-duty expansion hook, preferably, a limiting ring is welded to one end of the pressing plate.
[0008] A heavy-duty expansion hook, preferably, the limiting ring is slidably connected to the outside of the expansion hook base, and the outer diameter of the bottom of the expansion hook base is equal to the inner diameter of the limiting ring.
[0009] A heavy-duty expansion hook, preferably, the adjustment mechanism includes a fixed cylinder, a return spring, a moving rod and an extrusion screw;
[0010] A fixing cylinder is welded to one end of the expansion hook base, a return spring is welded inside the fixing cylinder, a moving rod is welded to one end of the return spring, and an outer end of the fixing cylinder is connected to an extrusion screw through a thread.
[0011] A heavy-duty expansion hook, preferably, one end of the extrusion screw is in contact with the outer side of the moving rod.
[0012] A heavy-duty expansion hook, preferably, the longitudinal section of the movable rod is T-shaped.
[0013] A heavy-duty expansion hook, preferably, the adjusting threaded rod and the fixing threaded rod are integrally formed.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the structure of the present invention is scientific and reasonable, and it is safe and convenient to use: when using the expansion hook base, the personnel fix the expansion hook base inside the wall, and then the personnel hang the heavy object on the expansion hook base hook. At this time, the adjustment mechanism is first compressed and then stretched, and the pressing plate is pushed to press the top of the heavy object through the elastic force of the reset spring. Then the personnel rotates the extrusion screw to fix the moving rod, and then the personnel rotates the clamping rod so that the clamping rod contacts the heavy object, and then fixes the clamping rod through the extrusion nut to achieve pressing and squeezing of the heavy object, ensuring the stability of the object during the hanging process, and thus preventing the object from falling during the hanging process, thereby ensuring the safety of the object when hanging. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.
[0016] In the attached figure:
[0017] Figure 1 It is a structural diagram of the utility model;
[0018] Figure 2 This is a schematic diagram of the installation structure of the pressing plate of the utility model;
[0019] Figure 3 This is a schematic diagram of the clamping rod installation structure of the utility model;
[0020] Reference numerals in the figure: 1, expansion hook base;
[0021] 2. Adjustment mechanism; 201. Fixed cylinder; 202. Return spring; 203. Moving rod; 204. Extrusion screw;
[0022] 3. Pressing plate; 4. Guide plate; 5. Limiting ring; 6. Adjusting threaded rod; 7. Fixing threaded rod; 8. Clamping rod; 9. Extrusion nut. DETAILED DESCRIPTION
[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.
[0024] Example: Figure 1-3 As shown, the utility model provides a technical solution, a heavy-duty expansion hook, including an expansion hook base 1, one end of the bottom of the expansion hook base 1 is fixedly connected to an adjustment mechanism 2, the adjustment mechanism 2 includes a fixed cylinder 201, a return spring 202, a moving rod 203 and an extrusion screw 204;
[0025] A fixed cylinder 201 is welded to one end of the expansion hook base 1, a return spring 202 is welded inside the fixed cylinder 201, a mobile rod 203 is welded to one end of the return spring 202, an extrusion screw 204 is connected to the outer end of the fixed cylinder 201 through a thread, and one end of the extrusion screw 204 is in contact with the outer side of the mobile rod 203. The longitudinal section of the mobile rod 203 is T-shaped, which prevents the mobile rod 203 from falling and facilitates the fixing of the mobile rod 203. A pressing plate 3 is installed at the bottom of the adjustment mechanism 2 by screws, and a guide plate 4 is welded to one end of the pressing plate 3. A limiting ring 5 is welded, and the limiting ring 5 is slidably connected to the outside of the expansion hook base 1. The outer diameter of the bottom of the expansion hook base 1 is equal to the inner diameter of the limiting ring 5, ensuring the stability of the movement of the limiting ring 5. The inside of the expansion hook base 1 is connected with an adjusting threaded rod 6 through a thread, and a fixed threaded rod 7 is provided on the top of the adjusting threaded rod 6. The adjusting threaded rod 6 and the fixed threaded rod 7 are integrally formed to enhance the connection strength of the adjusting threaded rod 6 and the fixed threaded rod 7. The outside of the fixed threaded rod 7 is rotatably connected with a clamping rod 8, and the outside of the fixed threaded rod 7 is connected with an extrusion nut 9 through a thread.
[0026] When using the expansion hook base 1, the personnel fix the expansion hook base 1 inside the wall, and then hang the heavy object on the hook of the expansion hook base 1. At this time, the adjustment mechanism 2 is first compressed and then stretched, and the elastic force of the reset spring 202 pushes the pressing plate 3 to press the top of the heavy object. Then the personnel rotates the extrusion screw 204 to fix the moving rod 203. Then the personnel rotates the clamping rod 8 so that the clamping rod 8 contacts the heavy object, and then fixes the clamping rod 8 by squeezing the nut 9 to achieve pressing and squeezing of the heavy object, ensuring the stability of the object during the hanging process, and thus preventing the object from falling during the hanging process, thereby ensuring the safety of the object when hanging.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A heavy-duty expansion hook, comprising an expansion hook base (1), characterized in that: One end of the bottom of the expansion hook base (1) is fixedly connected to an adjustment mechanism (2), and a pressing plate (3) is installed at the bottom of the adjustment mechanism (2) via screws. An adjustment threaded rod (6) is connected to the inside of the expansion hook base (1) via threads, and a fixed threaded rod (7) is provided on the top of the adjustment threaded rod (6). A clamping rod (8) is rotatably connected to the outside of the fixed threaded rod (7), and an extrusion nut (9) is connected to the outside of the fixed threaded rod (7) via threads.
2. A heavy-duty expansion hook according to claim 1, characterized in that: A guide plate (4) is welded to one end of the pressing plate (3).
3. The heavy-duty expansion hook according to claim 1, characterized in that: A limiting ring (5) is welded to one end of the pressing plate (3).
4. A heavy-duty expansion hook according to claim 3, characterized in that: The limiting ring (5) is slidably connected to the outside of the expansion hook base (1), and the outer diameter of the bottom of the expansion hook base (1) is equal to the inner diameter of the limiting ring (5).
5. The heavy-duty expansion hook according to claim 1, characterized in that: The regulating mechanism (2) comprises a fixed cylinder (201), a return spring (202), a moving rod (203) and an extrusion screw (204); A fixing cylinder (201) is welded to one end of the expansion hook base (1), a return spring (202) is welded inside the fixing cylinder (201), a moving rod (203) is welded to one end of the return spring (202), and an outer end of the fixing cylinder (201) is connected to an extrusion screw (204) via a threaded connection.
6. The heavy-duty expansion hook according to claim 5, characterized in that: One end of the extrusion screw (204) is in contact with the outer side of the moving rod (203).
7. The heavy-duty expansion hook according to claim 5, characterized in that: The longitudinal section of the moving rod (203) is T-shaped.
8. The heavy-duty expansion hook according to claim 1, characterized in that: The adjusting threaded rod (6) and the fixing threaded rod (7) are integrally formed.