Cold storage door buffer assembly
By using a buffer mechanism consisting of hydraulic oil and a counterweight floating plate, the problem of poor buffering effect in traditional cold storage door buffer components is solved, enabling smooth closing of the cold storage door and long-term stable operation of the buffer components, thus ensuring the efficient operation of the cold storage.
Patent Information
- Application Number
- CN202520285106.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Traditional cold storage door buffer components have limited cushioning effect, and the rubber pads are prone to aging and deformation, making it difficult to effectively buffer the large impact force of the cold storage door, affecting the service life and operational stability of the cold storage door.
The buffer mechanism employs hydraulic oil and a counterweight floating plate. The hydraulic oil counteracts the impact force, and the counterweight floating plate reduces the hydraulic oil flow rate. Combined with the permeable hole design, the buffering effect is optimized to prevent component wear.
It enables the cold storage door to close smoothly, extends the service life of the buffer components, ensures the efficient operation of the cold storage, and avoids component damage caused by the strong impact of hydraulic oil.
Smart Images
Figure CN223647632U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of buffer technology, and more specifically, to a cold storage door buffer assembly. Background Technology
[0002] Cold storage door buffer components are important parts installed on cold storage doors. Their function is to slow down the movement speed of the door during opening and closing, avoiding violent impacts caused by rapid collisions between the door and the door frame. This reduces noise, prevents damage to the door, door frame, and related sealing components, and also helps to maintain temperature stability inside the cold storage to a certain extent, extending the service life of the cold storage door and ensuring the normal and efficient operation of the cold storage.
[0003] Traditional cold storage doors typically have significant mass and close quickly, generating a tremendous impact when they rapidly move to the closed position. If this impact is not effectively cushioned, it can cause severe damage to the cold storage door. While some simple cushioning methods used in the past, such as simply using elastic materials like rubber pads, offer some protection, their effectiveness is limited and insufficient to handle the large impact forces. Furthermore, after repeated impacts, the rubber pads tend to age, deform, and lose their cushioning performance.
[0004] In view of this, this application proposes a cold storage door buffer assembly. Utility Model Content
[0005] The purpose of this application is to provide a cold storage door buffer assembly that solves the technical problems mentioned in the background art.
[0006] This application provides a cold storage door buffer assembly, including a fixed block, a stamping block fixedly sleeved on the upper end of the fixed block, a pressing cylinder fixedly connected to the lower end face of the stamping block, an oil cylinder slidably sleeved on the lower end of the pressing cylinder, and a buffer mechanism for buffering the cold storage door provided inside the pressing cylinder.
[0007] The buffer mechanism includes a pressing plate fixedly connected to the lower end face of the pressing cylinder. The pressing plate has multiple permeable holes through its interior. A positioning rod is fixedly connected to the upper end face of the pressing plate, and a counterweight floating plate is slidably connected to the outer wall of the positioning rod.
[0008] Optionally, the outer wall of the counterweight floating plate and the inner wall of the pressing cylinder are in clearance fit.
[0009] Optionally, the outer wall of the counterweight floating plate is symmetrically fixedly connected with limit blocks, and the inner wall of the pressing cylinder is symmetrically provided with limit grooves.
[0010] Optionally, the limiting block is located inside the limiting groove.
[0011] Optionally, a sealing ring is fixedly connected to the outer wall of the pressing plate, and the outer wall of the sealing ring is tightly fitted to the inner wall of the oil cylinder.
[0012] Optionally, a fixing plate is fixedly connected to the lower end face of the oil cylinder.
[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages:
[0014] This application utilizes hydraulic oil installed inside the oil cylinder. This hydraulic oil counteracts the downward impact force of the pressing cylinder and pressing plate, thus providing excellent cushioning. The counterweight float plate, with its own weight and buoyancy, buffers the flow rate of the hydraulic oil, reducing the impact force of the hydraulic oil passing through the permeation holes. This further optimizes the cushioning effect, making the closing of the cold storage door smoother and more stable. It also prevents wear, deformation, or even damage to components caused by the strong impact of the hydraulic oil, ensuring the long-term stable operation of the entire cushioning assembly. Later, when the compressed air pressure inside the pressing cylinder and the oil cylinder returns to equilibrium, the hydraulic oil, under the action of gravity and the downward pressing force of the counterweight float plate, flows back into the oil cylinder through the permeation holes, and the entire cushioning assembly returns to its initial state without manual intervention. This ensures that the cushioning assembly can always function normally during frequent opening and closing of the cold storage door, maintaining the efficient operation of the cold storage. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the cold storage door buffer assembly disclosed in the embodiments of this application;
[0016] Figure 2 This is a cross-sectional view of the cold storage door buffer assembly disclosed in an embodiment of this application;
[0017] Figure 3 The cold storage door buffer assembly disclosed in the embodiments of this application Figure 2 A magnified view of a portion of area A.
[0018] The following are the labels in the diagram: 1. Fixing block; 2. Stamping block; 3. Pressing cylinder; 4. Oil cylinder; 5. Fixing plate; 7. Pressing plate; 8. Permeation hole; 9. Positioning rod; 10. Counterweight floating plate; 11. Limiting block; 12. Sealing ring; 13. Limiting groove. Detailed Implementation
[0019] The present application will be further described in detail below with reference to the accompanying drawings.
[0020] Reference Figures 1-3This application provides a cold storage door buffer assembly, including a fixed block 1, a stamping block 2 fixedly sleeved on the upper end of the fixed block 1, a pressing cylinder 3 fixedly connected to the lower end face of the stamping block 2, an oil cylinder 4 slidably sleeved on the lower end of the pressing cylinder 3, and a buffer mechanism for buffering the cold storage door provided inside the pressing cylinder 3; the buffer mechanism includes a pressing plate 7 fixedly connected to the lower end face of the pressing cylinder 3, and a plurality of permeable holes 8 are opened through the pressing plate 7. By setting hydraulic oil inside the oil cylinder 4, the hydraulic oil counteracts the downward impact force of the pressing cylinder 3 and the pressing plate 7, thereby achieving a good buffering effect.
[0021] A positioning rod 9 is fixedly connected to the upper end face of the pressing plate 7. A counterweight float plate 10 is slidably connected to the outer wall of the positioning rod 9. The outer wall of the counterweight float plate 10 is in clearance fit with the inner wall of the pressing cylinder 3. The counterweight float plate 10, by virtue of its own weight and buoyancy characteristics, plays the role of buffering the flow rate of hydraulic oil and reducing the impact force of hydraulic oil passing through the permeation hole 8. On the one hand, it further optimizes the buffering effect, making the closing of the cold storage door more stable and smooth. On the other hand, it prevents the parts from being worn, deformed or even damaged due to the strong impact of hydraulic oil, ensuring the long-term stable operation of the entire buffer assembly.
[0022] The outer wall of the counterweight float plate 10 is symmetrically fixed with limiting blocks 11, and the inner wall of the pressing cylinder 3 is symmetrically provided with limiting grooves 13. The limiting blocks 11 are located inside the limiting grooves 13, which play a good limiting role, so that the counterweight float plate 10 will not tilt when moving. Later, the compressed air pressure inside the pressing cylinder 3 and the oil cylinder 4 is restored to balance. Under the action of gravity and the downward pressing force of the counterweight float plate 10, the hydraulic oil flows back into the oil cylinder 4 through the permeation hole 8, and the entire buffer assembly returns to its initial state without manual intervention. This ensures that the buffer assembly can always play a normal role during the frequent opening and closing of the cold storage door, maintaining the efficient operation of the cold storage.
[0023] A fixing plate 5 is fixedly connected to the lower end face of the oil cylinder 4, and a sealing ring 12 is fixedly connected to the outer wall of the pressing plate 7. The outer wall of the sealing ring 12 is tightly fitted with the inner wall of the oil cylinder 4, which plays a good sealing role and prevents air leakage.
[0024] Working principle: The operator installs the fixing plate 5 at the lower end of the oil cylinder 4 onto the ground on one side of the sliding position of the cold storage door, with the stamping block 2 facing upwards. The oil cylinder 4 contains hydraulic oil. When the cold storage door moves quickly towards this buffer assembly, one side of the lower end of the cold storage door will impact the inclined surface of the stamping block 2. The cold storage door will move on the inclined surface of the stamping block 2. At the same time, under the pressure of the cold storage door, the stamping block 2, the fixing block 1, and the pressing cylinder 3 will move downwards. Simultaneously, the pressing plate 7 moves downwards along with the pressing cylinder 3. The air inside the pressing cylinder 3 and the oil cylinder 4 is compressed, and the pressing plate 7 presses down on the hydraulic oil in the oil cylinder 4. The hydraulic oil counteracts the downward impact force of the pressing cylinder 3 and the pressing plate 7, thus achieving a good buffering effect. Simultaneously, hydraulic oil flows into the pressing cylinder 3 through the permeation holes 8. The counterweight float plate 10 inside the pressing cylinder 3 is in contact with the pressing plate 7. When the hydraulic oil enters the pressing cylinder 3, it first pushes up the counterweight float plate 10. The counterweight float plate 10 reduces the impact force of the hydraulic oil passing through the permeation holes 8, thereby improving the buffering effect and better protecting this buffer component from damage. After the impact force of the cold storage door is offset, the cold storage door moves slowly. Hydraulic oil gradually flows into the pressing cylinder 3 through the multiple permeation holes 8 on the pressing plate 7. The counterweight float plate 10 rises with the increase of the oil level until the cold storage door stops moving.
[0025] When the cold storage door moves away from this buffer assembly, the compressed air pressure inside the pressing cylinder 3 and the squeezing oil cylinder 4 returns to equilibrium. The pressing cylinder 3 will move upward and drive the fixing block 1 and the stamping block 2 to move upward. The hydraulic oil flows downward with the force of gravity and the downward pressing force of the counterweight floating plate 10. Finally, the hydraulic oil flows into the oil cylinder 4 through multiple permeation holes 8, thereby restoring the initial state.
[0026] 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 cold storage door buffer assembly, comprising a fixing block (1), characterized in that: The upper end of the fixed block (1) is fixedly sleeved with a stamping block (2), the lower end face of the stamping block (2) is fixedly connected with a pressing cylinder (3), the lower end of the pressing cylinder (3) is slidably sleeved with an oil cylinder (4), and the inside of the pressing cylinder (3) is provided with a buffer mechanism for buffering the cold storage door. The buffer mechanism includes a pressing plate (7) fixedly connected to the lower end face of the pressing cylinder (3). The pressing plate (7) has multiple permeable holes (8) through it. The upper end face of the pressing plate (7) is fixedly connected to a positioning rod (9). The outer wall of the positioning rod (9) is slidably connected to a counterweight floating plate (10).
2. The cold storage door buffer assembly according to claim 1, characterized in that: The outer wall of the counterweight floating plate (10) and the inner wall of the pressing cylinder (3) are in clearance fit.
3. The cold storage door buffer assembly according to claim 1, characterized in that: The outer wall of the counterweight floating plate (10) is symmetrically fixedly connected with a limiting block (11), and the inner wall of the pressing cylinder (3) is symmetrically provided with a limiting groove (13).
4. The cold storage door buffer assembly according to claim 3, characterized in that: The limiting block (11) is located inside the limiting groove (13).
5. The cold storage door buffer assembly according to claim 1, characterized in that: The outer wall of the pressing plate (7) is fixedly connected with a sealing ring (12), and the outer wall of the sealing ring (12) is tightly fitted with the inner wall of the oil cylinder (4).
6. The cold storage door buffer assembly according to claim 1, characterized in that: A fixing plate (5) is fixedly connected to the lower end face of the oil cylinder (4).