Opening and closing linkage drag hook for nursing bed board
By setting up the hook and trigger section on the hook on the nursing bed, combined with the saddle bracket and tensioning spring, the functions of the hook are automatically opened and closed and exit holes, solving the problems of complex structure and high cost in the prior art, and achieving efficient and reliable automated operation.
Patent Information
- Application Number
- CN202421772449.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The existing active hooks have complex structures and high cost, and cannot realize the automated hook opening and exit hole functions on the smart care bed.
A nursing bed board opening and closing linkage hook is designed. By setting up a hook section and a trigger section on the hook, combining the external saddle bracket and tension spring, the hook is automatically released and locked.
It realizes automatic hooking of hooks when the top rod is upward and automatic release when the downward, with simple structure, low cost and reliable operation.
Smart Images
Figure CN222929963U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of nursing bed components, and in particular to a linkage hook for opening and closing a nursing bed board. Background Art
[0002] Hooks are very commonly used in life. They can pull a relatively distant object closer or pull a high object down. Hooks can be fixed or movable, mainly consisting of a body section, an extension handle, and sometimes an accessory traction device. Movable hooks generally open and close the body section by an external force.
[0003] In the intelligent nursing bed, a relatively special application scenario is required, that is, using a hook to pull an object through a hole: when working, the object is pushed above and away from the hole. Therefore, a hook is needed to pull the object back to its original position through the hole after the object has worked, and then the hook needs to withdraw from the hole and move to the side of the hole. In this case, only a movable hook can be used. Due to the small space, adding power to the movable hook will make the structure complex and the cost increase. In order to simplify the structure and reduce the cost.
[0004] Fixed hooks cannot be applied to the usage conditions where the hook needs to be retracted; basically, external power needs to be provided for movable hooks. Without external force, some cannot be used, and some can be hooked and locked, but cannot automatically withdraw; in many mechanical applications, whether the external force is provided manually or by a power tool, it is uneconomical and inefficient compared to the linkage mechanism. This application provides a linkage hook for opening and closing a nursing bed board. Utility Model Content
[0005] In order to solve the problems of the complex structure and high cost of the existing movable hook, this application provides a linkage hook for opening and closing a nursing bed board.
[0006] A linkage hook for opening and closing a nursing bed board provided by this application includes two symmetrically arranged hooks. The two hooks include a body section and a hanging section and a trigger section respectively arranged at both ends of the body section. The trigger section is located at the end where the hooks are close to each other;
[0007] A release trigger structure is rotatably connected to the outside of the two hooks. A tension spring for controlling their positions is arranged on the outside of the two hooks. When the tension spring is not stressed, the hooks are in an open or tightened state.
[0008] The trigger section controls the tightening of the hook, and the release trigger structure controls the opening of the hook. With the cooperation of the external tension spring, automatic release and automatic locking of the hook are realized.
[0009] Preferably, the release trigger structure includes a saddle-shaped bracket. The saddle-shaped bracket moves vertically synchronously with the trigger section, and cards are integrally formed on both sides below the saddle-shaped bracket.
[0010] Preferably, the upper section of the saddle-shaped bracket is rotatably connected to the hook trigger section through two pin shafts, and a limiting rod is inserted into the opening sides of the two pin shafts.
[0011] Preferably, the hook further includes a card slot formed on the outer side of the body section, and both sides of the tension spring are embedded inside the card slot.
[0012] Preferably, the tension spring is in a ring structure.
[0013] In summary, the present application includes the following beneficial technical effects:
[0014] In the present application, a hanging section and a trigger section are provided on the hook. In cooperation with the external saddle-shaped bracket and the tension spring, when the ejector rod moves upward, the ejector rod can be automatically hooked, and when the ejector rod moves downward, the ejector rod can be automatically released. Compared with the prior art, the structure is simple, the cost is low, and the operation is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a working schematic diagram of the linkage hook in the first embodiment of the present application;
[0016] Figure 2 is the left isometric view in the first embodiment of the present application;
[0017] Figure 3 is the right isometric view in the first embodiment of the present application;
[0018] Figure 4 is the top view in the first embodiment of the present application;
[0019] Figure 5 is the bottom view in the first embodiment of the present application;
[0020] Figure 6 is the hook structure diagram in the first embodiment of the present application.
[0021] Description of the reference numerals: 1. Hook; 11. Body section; 12. Hanging section; 13. Trigger section; 14. Card slot; 2. Saddle-shaped bracket; 21. Card; 3. Tension spring; 4. Pin shaft; 5. Limiting rod; 6. Bottom plate; 7. Ejector rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following further describes the present application in detail with reference to the attached Figure 1 - Figure 6 to make a further detailed description of the present application.
[0023] Embodiment 1:
[0024] A nursing bed board opening and closing linkage hook, referring to Figure 1 - Figure 6A nursing bed board opening and closing linkage hook, comprising two symmetrically arranged hooks 1, the two hooks 1 comprising a body section 11 and a hooking section 12 and a trigger section respectively arranged at both ends of the body section 11, and the trigger section is located at one end of the hook 1 close to each other;
[0025] The two hooks 1 are rotatably connected with a release trigger structure on their outer sides, and a tensioning spring 3 for controlling their positions is arranged on the outer sides of the two hooks 1. When the tensioning spring 3 is not subjected to force, the hook 1 is in an open or tightened state. The tensioning spring 3 is an annular structure, and the hook 1 also includes a slot 14 opened on the outer side of the main body section 11. Both sides of the tensioning spring 3 are embedded in the inner side of the slot 14, and the slot 14 and the tensioning spring 3 are clamped together. The tensioning spring 3 can open outward with the hook 1, or can retract inward with the hook 1.
[0026] The tensioning spring 3 has the elasticity to return to its original position when being stretched to both sides. When the hook 1 is in the open state and the push rod 7 pushes the trigger section 13, the hook 1 as a whole rotates around the pin 4, and the position of the card slot 14 is relatively expanded outward and downward. After exceeding the maximum opening degree, the tensioning spring 3 contracts, and the hook 1 contracts to the minimum, completing the buckling of the top end of the push rod 7. At this time, the tensioning spring 3 is still in a stress-free state, but its height is lower than the initial position.
[0027] The release trigger structure includes a saddle-shaped bracket 2, which is vertically displaced synchronously with the trigger section, and cards 21 are integrally formed on the lower sides of the two sides of the saddle-shaped bracket 2. The upper section of the saddle-shaped bracket 2 is rotatably connected to the trigger section 13 of the hook 1 through two pin shafts 4, and the open sides of the two pin shafts 4 are plugged with limit rods 5. The side view of the saddle-shaped bracket 2 is a two-section structure, the upper section is an "n"-shaped structure wrapped around the outer side of the hook 1, and the lower section is an opening structure inclined to both outer sides. Its function is that when the top rod 7 and the hook 1 move downward as a whole, the lower section of the saddle-shaped bracket 2 contacts the bottom plate 6, and the card 21 is plugged into the card slot 14 of the bottom plate 6. At this time, the downward movement of the saddle-shaped bracket 2 is restricted. When the top rod 7 continues to move downward, the lower section of the saddle-shaped bracket 2 is deformed, and the upper section moves downward together with the trigger section 13 of the hook 1. The inner side of the structure of the hook 1 contacts the edge of the through groove of the bottom plate 6, thereby stretching the tensioning spring 3 outward, and the top rod 7 can be disengaged from the hook 1 at this time.
[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A nursing bed board opening and closing linkage hook, comprising two symmetrically arranged hooks (1), characterized in that: The two hooks (1) comprise a main body section (11) and a hooking section (12) and a trigger section respectively arranged at two ends of the main body section (11), and the trigger section is located at the end of the hook (1) that is close to each other; The outer sides of the two hooks (1) are rotatably connected with a release trigger structure, and the outer sides of the two hooks (1) are provided with tension springs (3) for controlling their positions. When the tension springs (3) are not subjected to force, the hooks (1) are in an open or tightened state.
2. The nursing bed board opening and closing linkage hook according to claim 1, characterized in that: The release trigger structure comprises a saddle-shaped bracket (2), the saddle-shaped bracket (2) is synchronously displaced in the vertical direction with the trigger section, and cards (21) are integrally formed below both sides of the saddle-shaped bracket (2).
3. The nursing bed board opening and closing linkage hook according to claim 2, characterized in that: The upper section of the saddle-shaped bracket (2) is rotatably connected to the trigger section (13) of the hook (1) via two pin shafts (4), and the open sides of the two pin shafts (4) are plugged with a limiting rod (5).
4. The nursing bed board opening and closing linkage hook according to claim 1, characterized in that: The hook (1) further comprises a slot (14) provided on the outside of the body section (11), and two sides of the tension spring (3) are embedded in the inside of the slot (14).
5. The nursing bed board opening and closing linkage hook according to claim 4, characterized in that: The tension spring (3) is in an annular structure.