Damping buffer easy to stretch

By designing the piston disc, baffle plate structure and micro damping holes, the problem of traditional dampers requiring great force to stretch is solved, achieving an easy and convenient operation experience and a stable damping effect, and enhancing the cushioning and shock absorption performance.

CN223411340UActive Publication Date: 2025-10-03GUANGDONG CHENGGUI METAL MANUFACTURING CO LTD
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Patent Information

Application Number
CN202422784804.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-10-03
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Traditional dampers require a large external force during the stretching process, which affects ease of use and may shorten their service life.

Method used

The piston disc, baffle plate structure and micro damping holes are designed so that the baffle plate automatically flips under the action of the damping medium, promoting circulation and reducing the external force required for stretching; when resetting, the fluid flows through the micro damping holes to ensure the stability of the damping force.

Benefits of technology

Significantly reduces the external force required during stretching, improves user experience, enhances cushioning and shock absorption performance, and ensures the continuity and stability of damping force.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223411340U_ABST
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Abstract

The utility model relates to the technical field of damping buffers, and discloses an easy-to-stretch damping buffer which comprises a shell, a piston disc is slidably connected to the interior of the shell, and two symmetrical and through liquid passing grooves are formed in the upper surface of the piston disc. According to the damping buffer easy to stretch, in the stretching process of the damping buffer, the blocking plate bears large resistance from a damping medium, so that the blocking plate can automatically turn over downwards, the liquid passing groove is opened, circulation of damping liquid is greatly promoted, and the external force needed during stretching is remarkably reduced; when the piston disc is reset, the bottom of the blocking plate can be subjected to large resistance of the damping medium, the blocking plate can automatically turn back to the original position under the action of the torsional spring hinge, the liquid passing groove is tightly sealed, at the moment, the damping medium can only circulate through the micro damping holes, and therefore the damping effect is improved. Therefore, a stable damping effect is generated.
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Description

Technical Field

[0001] The present application relates to the technical field of damping buffers, and in particular to a damping buffer that is easy to stretch. Background Art

[0002] In the existing field of damper technology, damping buffers are widely used in various applications requiring cushioning and shock absorption, such as furniture drawers, doors and windows, car seats, and industrial equipment. Their primary function is to provide a stable damping force during movement, absorbing and dissipating impact or vibration energy. This achieves smooth, slow movement, improving user experience and product lifespan.

[0003] However, traditional dampers have several shortcomings in their design and use. In particular, during the extension process, the flow resistance of the damping medium (such as hydraulic oil, damping fluid) and the friction of the internal mechanical structure require a significant external force to pull the damper out, which is inconvenient for the user. For example, traditional dampers installed on furniture drawers, doors, or windows often require a strong pull to open the door or pull the drawer, which not only affects ease of use but also may cause additional wear on the damper itself, shortening its service life. Utility Model Content

[0004] In response to the deficiencies of the prior art, the present application provides a damping buffer that is easily stretched, has advantages such as easy stretching, and solves the problems raised in the background art.

[0005] To achieve the above objectives, the present application provides the following technical solution: a stretchable damping buffer, comprising a housing, a piston disc slidably connected to the interior of the housing, the piston disc having two symmetrical and penetrating liquid flow grooves formed on the upper surface, and two symmetrically arranged blocking plates contacting the bottom of the piston disc, both of which are located below the adjacent liquid flow grooves;

[0006] A group of micro damping holes are respectively opened on the surfaces of the two blocking plates. An insert rod is fixedly connected to the upper surface of the piston disc, and the insert rod is slidably plugged into the housing.

[0007] Through the above scheme, through the designed piston disc and baffle plate structure, and the setting of the micro-damping holes, during the stretching process of the damping buffer of the present application, the baffle plate is subjected to greater resistance from the damping medium, so that it can automatically flip downward to open the liquid tank, which greatly promotes the circulation of the damping liquid and significantly reduces the external force required for stretching. This makes it easier and more convenient for users to open doors, pull drawers, etc., effectively improving the user experience. When the piston disc is reset, the bottom of the baffle plate will be subjected to greater resistance from the damping medium. Under the action of the torsion spring hinge, the baffle plate will automatically flip back to its original position and tightly close the liquid tank. At this time, the damping medium can only circulate through the micro-damping holes, thereby producing a stable damping effect. This design not only ensures the continuity and stability of the damping force, but also further enhances the buffering and shock absorption performance of the damping buffer.

[0008] Furthermore, a first connecting ring is fixedly connected to the top end of the insertion rod.

[0009] Through the above solution, by providing the first connecting ring, it is convenient for the user to connect one end of the insertion rod with an external product.

[0010] Furthermore, a second connecting ring is fixedly connected to the bottom end of the shell.

[0011] Through the above solution, by providing the second connecting ring, it is possible to facilitate the user to connect with external products.

[0012] Furthermore, arc-shaped sealing rings are fixedly connected to the outer surface edges of the two blocking plates.

[0013] With the above solution and the provision of the arc-shaped sealing ring, the sealing performance of the blocking plate can be improved.

[0014] Furthermore, a compression spring is installed between the piston disc and the inner top wall of the housing, and the compression spring is sleeved with the insertion rod.

[0015] Through the above solution and the provision of the compression spring, the purpose of resetting the piston disc can be achieved.

[0016] Furthermore, the ends of the two blocking plates that are close to each other are hinged to the bottom of the piston disc through a torsion spring hinge.

[0017] Through the above solution, the blocking plate and the piston disc are hingedly connected by a torsion spring hinge, so that the blocking plate can be automatically reset.

[0018] Furthermore, a plurality of sealing rings are fixedly embedded on the outer surface of the piston disc.

[0019] Through the above solution and the provision of the sealing ring, the sealing performance of the piston disc can be improved.

[0020] Furthermore, the shell is filled with damping liquid, and the damping liquid is set to silicone oil material.

[0021] Through the above scheme and the above setting, silicone oil as a damping medium can generate a stable damping force through the liquid groove and the micro damping hole when the piston disc and the housing move relative to each other, effectively absorb and dissipate impact or vibration energy, and achieve good buffering and shock absorption effects. Silicone oil has the characteristics of moderate viscosity, stable chemical properties, and non-volatile, and is suitable as a working medium in a damping buffer.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] This damping buffer that is easy to stretch has a designed piston disc and baffle plate structure, as well as the setting of micro-damping holes. During the stretching process of the damping buffer of the present application, the baffle plate is subjected to greater resistance from the damping medium, so that it can automatically flip downward to open the liquid tank, which greatly promotes the circulation of the damping liquid and significantly reduces the external force required for stretching. This makes it easier and more convenient for users to open doors, pull drawers, etc., effectively improving the user experience. When the piston disc is reset, the bottom of the baffle plate will be subjected to greater resistance from the damping medium. Under the action of the torsion spring hinge, the baffle plate will automatically flip back to its original position and tightly close the liquid tank. At this time, the damping medium can only circulate through the micro-damping holes, thereby producing a stable damping effect. This design not only ensures the continuity and stability of the damping force, but also further enhances the buffering and shock absorption performance of the damping buffer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a cross-sectional view of the overall structure of this application;

[0026] Figure 3 For this application piston disc structure Figure 1 ;

[0027] Figure 4 For this application piston disc structure Figure 2 .

[0028] In the picture:

[0029] 1. Housing; 2. Piston disc; 3. Liquid flow trough; 4. Blocking plate; 5. Micro damping hole; 6. Insert rod; 7. First connecting ring; 8. Second connecting ring; 9. Compression spring; 10. Sealing ring; 11. Arc-shaped sealing ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] See also Figure 2 、 Figure 3 and Figure 4 In this embodiment, a damping buffer that is easy to stretch includes a shell 1, a piston disc 2 is slidably connected to the inside of the shell 1, and two symmetrical and penetrating liquid grooves 3 are provided on the upper surface of the piston disc 2. The bottom of the piston disc 2 is in contact with two symmetrically arranged blocking plates 4. The two blocking plates 4 are both located below the liquid grooves 3 close to them. The two blocking plates 4 can achieve the purpose of sealing the liquid grooves 3. At the same time, the blocking plates 4 can be flipped downward, but cannot be flipped upward due to the interference of the piston disc 2.

[0032] See also Figure 2 、 Figure 3 and Figure 4 A group of micro damping holes 5 are provided on the surface of the two blocking plates 4. The upper surface of the piston disc 2 is fixedly connected with an insertion rod 6. The top of the insertion rod 6 is fixedly connected with a first connecting ring 7. Through the setting of the first connecting ring 7, the user can easily connect one end of the insertion rod 6 with an external product. The bottom end of the shell 1 is fixedly connected with a second connecting ring 8. Through the setting of the second connecting ring 8, the user can easily connect with an external product. The insertion rod 6 is slidably plugged into the shell 1. Through the setting of the micro damper hole, the damping hole on the piston disc 2 allows the fluid medium to pass through, thereby generating a damping force.

[0033] See also Figure 2 、 Figure 3 and Figure 4 The outer surface edges of the two blocking plates 4 are fixedly connected with arc-shaped sealing rings 11. The setting of the arc-shaped sealing rings 11 can improve the sealing performance of the blocking plates 4. A compression spring 9 is installed between the piston disc 2 and the inner top wall of the housing 1. The compression spring 9 is sleeved with the insertion rod 6. Through the setting of the compression spring 9, the purpose of resetting the piston disc 2 can be achieved. The ends of the two blocking plates 4 close to each other are hinged to the bottom of the piston disc 2 through a torsion spring hinge. By setting the blocking plate 4 and the piston disc 2 to be hinged through the torsion spring hinge, the purpose of automatic resetting of the blocking plate 4 can be achieved.

[0034] See also Figure 1 、 Figure 2 and Figure 3The outer surface of the piston disc 2 is fixedly inlaid with multiple sealing rings 10. The provision of sealing rings 10 can improve the sealing performance of the piston disc 2. The housing 1 is filled with a damping liquid, which is a silicone oil material. Through this arrangement, the silicone oil acts as a damping medium. When the piston disc 2 and the housing 1 move relative to each other, it can generate a stable damping force through the liquid groove 3 and the micro-damping holes 5, effectively absorbing and dissipating impact or vibration energy, achieving excellent cushioning and shock absorption effects. Silicone oil has the characteristics of moderate viscosity, stable chemical properties, and low volatility, making it suitable as a working medium in the damping buffer.

[0035] The damping buffer of the present embodiment is easy to stretch. Through the designed piston disc 2 and blocking plate 4 structure, and the setting of the micro damping hole 5, during the stretching process of the damping buffer of the present application, the blocking plate 4 is subjected to greater resistance from the damping medium, so that it can automatically flip downward to open the liquid tank 3, which greatly promotes the circulation of the damping liquid and significantly reduces the external force required for stretching. This makes it easier and more convenient for users to open doors, pull drawers, etc., effectively improving the user experience. When the piston disc 2 is reset, the bottom of the blocking plate 4 will be subjected to greater resistance from the damping medium. Under the action of the torsion spring hinge, the blocking plate 4 will automatically flip back to its original position and tightly close the liquid tank 3. At this time, the damping medium can only circulate through the micro damping hole 5, thereby producing a stable damping effect. This design not only ensures the continuity and stability of the damping force, but also further enhances the buffering and shock absorption performance of the damping buffer.

[0036] It should be noted that the damping buffer of the present application is designed with a simple installation interface, such as the first connecting ring 7 and the second connecting ring 8, so that it can be easily connected to various furniture, equipment and vehicles. Silicone oil, as a damping medium, not only has stable chemical properties, but is also harmless to the human body and the environment. Therefore, the damping buffer of the present application will not release harmful substances during use, ensuring the safety and health of the user.

[0037] The working principle of the above embodiment is as follows: in the initial state of the damping buffer, the piston disc 2 is located inside the housing 1, and the insertion rod 6 partially extends out of the housing 1. At this time, the two blocking plates 4 are in a closed state under the action of the torsion spring hinge, tightly sealing the liquid groove 3 on the piston disc 2. The silicone oil damping medium filled in the housing 1 is in a static state. When the user performs a stretching operation, the insertion rod 6 and the piston disc 2 fixed thereto will slide upward along the inner wall of the housing 1. At this time, due to the movement of the piston disc 2, the blocking plate 4 is subjected to a large resistance from the silicone oil damping medium, and thus automatically flips downward. When the liquid tank 3 is opened, the silicone oil damping medium can quickly flow through the opened liquid tank 3, significantly reducing the external force required for stretching, which makes it easier and more convenient for users to open doors, pull drawers, etc. When the user stops the stretching operation and closes the drawer, the piston disc 2 begins to reset under the action of the compression spring 9. At this time, the bottom of the blocking plate 4 will be subjected to a large resistance from the silicone oil damping medium. Under the action of the torsion spring hinge, the blocking plate 4 will automatically flip back to its original position and tightly close the liquid tank 3. At this time, the silicone oil damping medium can only flow through the micro damping hole 5, thereby producing a stable damping effect.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stretchable damping buffer, comprising a housing (1), characterized in that: The housing (1) is internally slidably connected to a piston disc (2), the upper surface of the piston disc (2) is provided with two symmetrical and penetrating liquid flow grooves (3), the bottom of the piston disc (2) is in contact with two symmetrically arranged blocking plates (4), and the two blocking plates (4) are both located below the liquid flow grooves (3) adjacent thereto; A group of micro damping holes (5) are provided on the surfaces of the two blocking plates (4), and an insert rod (6) is fixedly connected to the upper surface of the piston disc (2), and the insert rod (6) is slidably plugged into the housing (1).

2. The easily stretchable damping buffer according to claim 1, characterized in that: The top end of the insertion rod (6) is fixedly connected to a first connecting ring (7).

3. The easily stretchable damping buffer according to claim 1, characterized in that: A second connecting ring (8) is fixedly connected to the bottom end of the housing (1).

4. The easily stretchable damping buffer according to claim 1, characterized in that: Arc-shaped sealing rings (11) are fixedly connected to the outer surface edges of the two blocking plates (4).

5. The easily stretchable damping buffer according to claim 1, characterized in that: A compression spring (9) is installed between the piston disc (2) and the inner top wall of the housing (1), and the compression spring (9) is sleeved with the insertion rod (6).

6. The easily stretchable damping buffer according to claim 1, characterized in that: The ends of the two blocking plates (4) that are close to each other are hinged to the bottom of the piston disc (2) via a torsion spring hinge.

7. The easily stretchable damping buffer according to claim 1, characterized in that: A plurality of sealing rings (10) are fixedly embedded on the outer surface of the piston disc (2).

8. The easily stretchable damping buffer according to claim 1, characterized in that: The housing (1) is filled with damping liquid, which is made of silicone oil.