Anti-pinch mechanism of grain storage barrel cover

By incorporating damping, spring, and buffer components within the grain storage bin lid, the problem of the lid pinching the hand during rapid closure has been solved, achieving a safe and reliable closing process.

CN224076106UActive Publication Date: 2026-04-03NK SHENZHEN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing grain storage bin lids lack effective cushioning during closing, which can easily pinch the user's hand and pose a safety hazard.

Method used

A damping assembly, a spring assembly, and a buffer assembly are installed inside the grain storage hopper lid. The damping assembly provides initial resistance, the spring assembly provides elastic cushioning, and the buffer assembly provides multi-stage cushioning to form an anti-pinch system.

Benefits of technology

It effectively slows down the closing speed of the lid, prevents hand injuries, improves safety and reliability, and eliminates hand-pinching accidents.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224076106U_ABST
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Abstract

The utility model relates to the technical field of hand pinching prevention, and discloses a hand pinching prevention mechanism of a grain storage barrel cover, which comprises a barrel main body, a barrel cover, a rotating shaft and a handle, the barrel cover is fixedly arranged at the top end of the barrel main body, the rotating shaft is arranged at the end of one side of the barrel main body, and the rotating shaft is connected with the handle; a damping assembly, a spring assembly and a buffer assembly are arranged on the can cover, the damping assembly is arranged in the can cover, the spring assembly is arranged on the damping assembly, and the buffer assembly is arranged on the spring assembly; by means of the innovative structure that the damping assembly, the spring assembly and the buffering assembly are arranged in the barrel cover, the effect of effectively preventing hands from being pinched is achieved, and the damping assembly provides resistance in the barrel cover closing process; the spring assembly buffers the bucket cover closing impact force through the elastic deformation of the spring assembly; the buffering assembly forms a multi-stage buffering structure, when the barrel cover is closed with strong force, the buffering assembly plays a role to prevent the rod piece from being rigidly broken during collision, and the potential safety hazard that the hands of a user are pinched due to rapid falling of the barrel cover is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of anti-pinch technology, specifically an anti-pinch mechanism for a grain storage bucket lid. Background Technology

[0002] A patent document with publication number CN219970623U discloses a vacuum grain storage bin lid and a vacuum grain storage bin, belonging to the field of grain storage bin technology. It includes: a lid body; a vacuuming assembly connected to the lid body and disposed within the lid body, the vacuuming assembly including a first circuit board with input contacts passing through the lid body and exposed to the outside; and a battery compartment detachably connected to the lid body, the battery compartment having output contacts. The advantages of this invention are: the detachable connection between the battery compartment and the lid body, and the electrical connection between the output contacts and input contacts when the battery compartment is connected to the lid body, allow the battery compartment to power the vacuuming assembly. This allows the battery compartment to be removed independently of the vacuum grain storage bin lid; when charging is needed, the battery compartment can be directly removed for charging without having to move the entire vacuum grain storage bin.

[0003] In the existing technology, some equipment lacks anti-pinch buffer components in the structural design of grain storage barrel lids. This makes the grain storage barrel lid prone to falling rapidly due to its own weight during the opening and closing process, especially when closing, due to the lack of effective cushioning, which poses a safety hazard of pinching the user's hand.

[0004] Therefore, this utility model proposes an anti-pinch mechanism for grain storage bucket lids to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-pinch mechanism for grain storage bucket lids to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-pinch mechanism for a grain storage bucket lid, comprising a bucket body, a bucket lid, a rotating shaft, and a handle. The bucket lid is fixedly installed at the top of the bucket body, the rotating shaft is installed at one end of the bucket body, and a handle is connected to the rotating shaft.

[0007] The bucket lid is equipped with a damping component, a spring component, and a buffer component. The damping component is located inside the bucket lid, the spring component is located on the damping component, and the buffer component is located on the spring component.

[0008] Preferably, the slider cover in the damping assembly is disposed inside the sliding cavity, which is located at one end of the inner side of the barrel cover.

[0009] Preferably, the other end of the slider cover in the damping assembly is provided with an inclined plate, the inclined plate being in close contact with the hinge, and the hinge being provided on one end inside the bucket cover.

[0010] Preferably, the spring in the spring assembly is fixedly sleeved on the fixing rod, and the fixing rod is disposed inside the slider cover.

[0011] Preferably, the other end of the spring in the spring assembly is sleeved on the second sleeve rod, and the second sleeve rod is fixedly disposed inside the slider cover.

[0012] Preferably, the buffer protrusion in the buffer assembly is fixedly disposed at one end of the fixed rod, and a telescopic rod is disposed inside the buffer protrusion, with a second spring sleeved on the telescopic rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By incorporating a damping component, a spring component, and a buffer component inside the lid, the innovative structure effectively prevents hand pinching. The damping component provides resistance during lid closure, slowing its descent. The spring component further buffers the impact force of the lid closing through its elastic deformation. The buffer component, consisting of a buffer protrusion, a telescopic rod, and a second spring, forms a multi-stage buffer structure. When the lid is slammed shut, the buffer component activates to prevent rigid breakage of the rod upon impact. These three components work together to form a complete anti-pinch system, effectively avoiding the safety hazard of hand injury caused by the rapid descent of the lid, and significantly improving the safety and reliability of the grain storage container during use. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the damping component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the spring assembly structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the buffer component structure of this utility model.

[0018] In the diagram: 1. Bucket body; 2. Bucket lid; 3. Rotating shaft; 4. Handle; 5. Damping assembly; 6. Spring assembly; 7. Buffer assembly; 8. Sliding cover; 9. Sliding cavity; 10. Inclined plate; 11. Hinge; 12. Spring; 13. Fixed rod; 14. Second connecting rod; 15. Buffer protrusion; 16. Telescopic rod; 17. Second spring; 18. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this utility model, not all embodiments, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0020] Example 1: Please refer to Figures 1 to 2 An anti-pinch mechanism for a grain storage bucket lid includes a bucket body 1, a bucket lid 2, a rotating shaft 3, and a handle 4. The bucket lid 2 is fixedly installed at the top of the bucket body 1, and the rotating shaft 3 is installed at one end of the bucket body 1. The handle 4 is connected to the rotating shaft 3. The bucket lid 2 is provided with a damping component 5, a spring component 6, and a buffer component 7. The damping component 5 is installed inside the bucket lid 2, the spring component 6 is installed on the damping component 5, and the buffer component 7 is installed on the spring component 6.

[0021] The slider cover 501 in the damping assembly 5 is disposed inside the sliding cavity 502, and the sliding cavity 502 is disposed at one end of the barrel cover 2.

[0022] The other end of the slider cover 501 in the damping assembly 5 is provided with an inclined plate 503, which is in close contact with the hinge 504. The hinge 504 is located at one end of the inner side of the barrel cover 2.

[0023] When in use, when the lid 2 is closed, the lid 2 causes the slider cover 501 of the damping assembly 5 to move within the sliding cavity 502. The inclined plate 503 at the end of the slider cover 501 contacts the hinge 504 and slides relative to it. The sliding cavity 502 constrains the movement of the slider cover 501. The contact between the inclined plate 503 and the hinge 504 generates a damping force. This effectively slows down the speed of the lid 2 during the closing process, preventing the lid 2 from falling rapidly due to gravity and pinching the user's hand. This provides initial protection for the safe closing of the grain storage bucket lid and ensures a safer and more worry-free use process.

[0024] Example 2: Based on Example 1, please refer to... Figures 2 to 3 In the spring assembly 6, the spring 601 is fixedly sleeved on the fixing rod 602, and the fixing rod 602 is located inside the slider cover 501.

[0025] The other end of the spring 601 in the spring assembly 6 is sleeved on the second sleeve rod 603, and the second sleeve rod 603 is fixedly installed inside the slider cover 501.

[0026] In use, when the slider cover 501 moves within the sliding cavity 502, one end of the spring 601 of the spring assembly 6 is sleeved on the fixed rod 602, and the other end is sleeved on the second connecting rod 603. The spring 601 then undergoes elastic deformation. During the closing process of the bucket lid 2, the elastic force of the spring 601 is opposite to the direction of movement of the slider cover 501, which can further hinder the movement of the slider cover 501. Through the buffering effect of the spring 601, the impact force when the bucket lid 2 closes can be effectively weakened. In conjunction with the damping assembly 5, the closing speed of the bucket lid 2 is significantly reduced, greatly improving the anti-pinch effect and enhancing the safety of use.

[0027] Example 3: Based on Example 2, please refer to... Figures 3 to 4 The buffer protrusion 701 in the buffer assembly 7 is fixedly installed at one end of the fixed rod 602. A telescopic rod 702 is installed inside the buffer protrusion 701, and a second spring 703 is sleeved on the telescopic rod 702.

[0028] In use, based on Embodiment 2, when the lid 2 is closed by a strong impact, the buffer assembly 7 begins to play a crucial role. The buffer protrusion 701 is fixed to the fixed rod 602, and the telescopic rod 702 can flexibly extend and retract within the buffer protrusion 701. The second spring 703 is sleeved on the telescopic rod 702. When the lid 2 closes and generates an impact force, this impact force acts on the buffer protrusion 701, causing the telescopic rod 702 to be compressed and retracted. The second spring 703 is simultaneously compressed. Through the dual deformation of the telescopic rod 702 and the second spring 703, the remaining impact force when the lid 2 closes is fully absorbed, preventing the fixed rod 602 from rigidly breaking under impact. This comprehensively ensures the safety of the closing process from multiple aspects, effectively preventing hand-pinching accidents and providing users with a safer user experience.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of anti-pinch hand mechanism of grain storage barrel cover, including barrel main body (1), barrel cover (2), pivot (3), handle (4), the barrel main body (1) top end part is fixedly provided with barrel cover (2), the pivot (3) is arranged in barrel main body (1) one side end, the pivot (3) is connected with handle (4) on it; characterized in that Including damping assembly (5), spring assembly (6), buffer assembly (7), the damping assembly (5) is arranged in barrel cover (2), the spring assembly (6) is arranged on damping assembly (5), the buffer assembly (7) is arranged on spring assembly (6).

2. The anti-pinch mechanism of the grain storage bin lid according to claim 1, characterized in that: The slider cover (501) in the damping assembly (5) is arranged in sliding cavity (502), the sliding cavity (502) is arranged in one side end in barrel cover (2).

3. The anti-pinch mechanism of claim 2, wherein: The slider cover (501) in the damping assembly (5) other side end is provided with inclined plate (503), the inclined plate (503) is close to hinge (504), the hinge (504) is arranged in one side end in barrel cover (2).

4. The anti-pinch mechanism of claim 1, wherein: The spring (601) in the spring assembly (6) is fixedly sleeved on fixed rod (602), the fixed rod (602) is arranged in the inside of slider cover (501).

5. The anti-pinch mechanism of claim 4, wherein: The spring (601) in the spring assembly (6) other side end is sleeved on the second sleeve rod (603), and the second sleeve rod (603) is fixedly arranged in slider cover (501).

6. The anti-pinch mechanism of claim 1, wherein: The buffer boss (701) in the buffer assembly (7) is fixedly arranged in one side end of fixed rod (602), the buffer boss (701) is provided with telescopic rod (702) in, the telescopic rod (702) is sleeved with second spring (703) on it.

Citation Information

Patent Citations

  • Vacuum grain storage barrel cover and vacuum grain storage barrel

    CN219970623U