Damping buffer for balancing piston rod
By introducing protective and damping components into the shock absorber, the problem of insufficient external protection for the piston rod is solved, thereby improving the stability and reliability of the piston rod and extending its service life.
Patent Information
- Application Number
- CN202520543054.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing shock absorbers lack external protection for the piston rod, making it prone to bumps and scratches during operation, affecting normal operation and shortening its service life.
A shock absorber comprising a protective component and a shock-absorbing component was designed. The protective component is slidably connected to a fixed ring and a protective inner shell limiting block, and the limiting groove limits the protective inner shell. The shock-absorbing component consumes vibration energy and converts it into heat energy dissipation through the cooperation of a damper and a spring.
It effectively prevents the piston rod from being bumped and scratched during operation, improves sliding stability and reliability, controls vibration amplitude and frequency, and extends the service life of the piston rod.
Smart Images

Figure CN223938556U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of piston rod shock absorption and buffer technology, and in particular relates to a shock absorber for balancing piston rods. Background Technology
[0002] A piston rod damper is a device that uses the reciprocating motion of a piston rod within a working cylinder to generate damping force through a medium such as oil or gas, thereby absorbing and dissipating vibration energy.
[0003] Existing shock absorbers generally do not have external protection for the piston rod, and the piston rod needs to frequently extend, retract, and adjust its position during operation. The output rod of the piston rod is generally relatively thin, making it easy for it to be bumped or scratched during operation. This not only affects the normal operation of the piston rod, but also greatly reduces its service life. Therefore, we propose a shock absorber for balancing the piston rod. Utility Model Content
[0004] The purpose of this invention is to provide a shock absorber for balancing piston rods. By setting up a protective component, specifically by installing the top end of the output rod to the mounting base, when the output rod increases or decreases its extension length under force, the output rod drives the top fixing ring to move. The top fixing ring then drives the two protective inner shells to move. The protective inner shells drive the limiting block to slide within the limiting groove. The limiting groove limits the movement of the protective inner shells, ensuring their sliding stability. This solves the problem that existing shock absorbers generally do not have external protection for the piston rod, and that the piston rod needs to frequently extend, retract, and adjust its position during operation. The output rod of the piston rod is generally relatively thin, making it easy for it to be bumped or scratched during operation. This not only affects the normal operation of the piston rod, but these damages also greatly reduce the service life of the piston rod.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a shock absorber for balancing a piston rod, including a piston rod body, and an output rod is slidably connected to the top of the piston rod body;
[0007] A protective assembly is provided on the outer surface of the piston rod. The protective assembly includes two protective shells. A fixing ring is fixedly connected to the outer surface of both the output rod and the piston rod. The outer surface of the fixing ring at the bottom is inserted into the inner side of the two protective shells opposite to the bottom. The fixing ring at the bottom is fixedly connected to the bottom of the two protective shells by bottom screws. A protective inner shell is slidably connected to the inner side of the two protective shells opposite to each other. A shock-absorbing assembly is provided below the protective assembly. The shock-absorbing assembly includes a shell. Two fixing blocks are fixedly connected inside the shell. The fixing ring at the top drives the two protective inner shells to move. The protective inner shells drive the limiting blocks to slide in the limiting grooves. The limiting grooves limit the movement of the protective inner shells, ensuring their sliding stability.
[0008] Furthermore, the outer surface of the top fixing ring is inserted into the side opposite to the top of the two protective inner shells. The top of the top fixing ring is fixedly connected to the top of the two protective inner shells by screws. Several positioning pins are fixedly connected to the right side of the left protective outer shell and the right side of the protective inner shell. Several positioning holes are opened on the right protective outer shell and the left side. The outer surface of the positioning pin is inserted into the inner wall of the positioning hole. The setting of positioning pins and positioning holes improves the convenience of device installation and also improves the efficiency of installation and maintenance.
[0009] Furthermore, limit grooves are provided on opposite sides of the two protective shells, and limit blocks are slidably connected inside the two limit grooves. The opposite sides of the two limit blocks are fixedly connected to the opposite surfaces of the two protective inner shells. A second fixing ring is fixedly connected to the outer surface of the piston rod. Several bolts are threadedly connected to the top of the second fixing ring, and the bolts penetrate the interior of the second fixing ring. The bottom outer surface of the bolts is threadedly connected to the interior of the top fixing block. The precise design of the limit grooves effectively limits the movement of the protective inner shells, preventing them from shifting or shaking during movement, thereby ensuring their sliding stability and reliability.
[0010] Furthermore, several sliding rods are fixedly connected to the bottom of the top fixed block. Spring 1 is provided on the outer surface of the sliding rod. The top and bottom of the two fixed blocks are in contact with the top and bottom of the spring 1. The interior of the bottom fixed block is slidably connected to the outer surface of the sliding rod. Dampers are provided on the opposite sides of the several sliding rods. Some of the two fixed blocks are fixedly connected to the top and bottom of the dampers. Spring 2 is in contact with the outer surface of the damper. A mounting base is fixedly connected to the bottom of the bottom fixed block. The damper converts vibration into heat energy and dissipates it. This design allows the vibration system to effectively control the amplitude and frequency of vibration while maintaining a certain degree of elasticity, thereby achieving effective control of vibration and improving the stability and reliability of the entire system.
[0011] This utility model has the following beneficial effects:
[0012] 1. This utility model, by setting up a protective component, specifically installs the top of the output rod to the mounting base. When the output rod is subjected to force, it increases or decreases the extension length, which drives the top fixing ring to move. The top fixing ring drives the two protective inner shells to move, and the protective inner shells drive the limiting block to slide in the limiting groove. The limiting groove limits the protective inner shells, ensuring their sliding stability.
[0013] 2. This utility model sets up a shock-absorbing component, specifically a damper that works in conjunction with a spring to form a highly efficient vibration control system. While the spring stores energy, the damper continuously consumes energy, converting vibration into heat and dissipating it. This design allows the vibration system to effectively control the amplitude and frequency of vibration while maintaining a certain degree of elasticity, thereby achieving effective control of vibration and improving the stability and reliability of the entire system.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the outer shell structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the fixing ring structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the limiting groove structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the mounting base structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the spring structure of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Output rod; 2. Piston rod body; 21. Fixing ring one; 22. Bolt; 23. Fixing ring two; 3. Mounting base; 11. Protective assembly; 111. Protective outer shell; 112. Protective inner shell; 113. Positioning pin; 114. Positioning hole; 115. Limiting groove; 116. Limiting block; 12. Shock absorption assembly; 121. Outer shell; 122. Fixing block; 123. Slide rod; 124. Spring one; 125. Damper; 126. Spring two. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] Please see Figures 1-6 As shown, this utility model is a shock absorber for balancing a piston rod, including a piston rod body 2, and an output rod 1 is slidably connected to the top of the piston rod body 2;
[0026] A protective assembly 11 is provided on the outer surface of the piston rod body 2. The protective assembly 11 includes two protective shells 111. A fixing ring 21 is fixedly connected to the outer surface of both the output rod 1 and the piston rod body 2. The outer surface of the fixing ring 21 located at the bottom is inserted into the side of the two protective shells 111 opposite to the bottom. The fixing ring 21 located at the bottom is fixedly connected to the bottom of the two protective shells 111 by bottom screws. A protective inner shell 112 is slidably connected to the side of the two protective shells 111 opposite to each other. A shock-absorbing assembly 12 is provided below the protective assembly 11. Component 12 includes a housing 121, inside which two fixing blocks 122 are fixedly connected. This utility model sets up a protective component 11, specifically by installing the top end of the output rod 1 with the mounting base 3. When the output rod 1 is subjected to force, it increases or decreases its extension length, causing the top fixing ring 21 to move. The top fixing ring 21 causes the two protective inner shells 112 to move, and the protective inner shells 112 cause the limiting block 116 to slide within the limiting groove 115. The limiting groove 115 limits the protective inner shells 112, ensuring the stability of their sliding.
[0027] The outer surface of the top retaining ring 21 is inserted into the side opposite to the top of the two protective inner shells 112. The top of the top retaining ring 21 is fixedly connected to the top of the two protective inner shells 112 by screws.
[0028] Several positioning pins 113 are fixedly connected to the right side of the protective outer shell 111 and the protective inner shell 112 located on the left side. Several positioning holes 114 are opened on the right side of the protective outer shell 111 and the left side. The outer surface of the positioning pin 113 is inserted into the inner wall of the positioning hole 114.
[0029] Each of the two protective shells 111 has a limiting groove 115 on its opposite side. Each of the two limiting grooves 115 has a limiting block 116 slidably connected inside. Each of the two limiting blocks 116 has its opposite side fixedly connected to the opposite side surface of the two protective inner shells 112.
[0030] A fixing ring 23 is fixedly connected to the outer surface of the piston rod body 2. Several bolts 22 are threadedly connected to the top of the fixing ring 23. The bolts 22 penetrate the interior of the fixing ring 23. The bottom outer surface of the bolts 22 is threadedly connected to the interior of the fixing block 122 located at the top.
[0031] The bottom of the top fixing block 122 is fixedly connected to several sliding rods 123. Springs 124 are provided on the outer surface of the sliding rods 123. The opposite sides of the two fixing blocks 122 are in contact with the top and bottom of the springs 124.
[0032] The fixed block 122 at the bottom is slidably connected to the outer surface of the slide rod 123. A damper 125 is provided on one side of several slide rods 123. Some of the fixed blocks 122 are fixedly connected to the top and bottom of the damper 125. The outer surface of the damper 125 contacts the second spring 126. The bottom of the fixed block 122 at the bottom is fixedly connected to the mounting base 3. This utility model sets up a shock absorption component 12. Specifically, the damper 125 works in conjunction with the second spring 126 to form an efficient vibration control system. While the spring stores energy, the damper 125 can continuously consume energy, converting vibration into heat energy and dissipating it. This design allows the vibration system to effectively control the amplitude and frequency of vibration while maintaining a certain elasticity, thereby achieving effective control of vibration and improving the stability and reliability of the entire system.
[0033] One specific application of this embodiment is as follows: the top end of the output rod 1 is precisely aligned with and securely installed to the mounting base 3, ensuring a stable and reliable connection between the two. When the device is subjected to force, the output rod 1 will increase or decrease its extension length according to the direction and magnitude of the force. During this process, the top of the output rod 1 will drive the fixing ring 21 to move together. As a connecting member, the movement of the fixing ring 21 will further drive the two protective inner shells 112 to move synchronously. The design of the protective inner shells 112 is intended to provide additional protection for the internal components and ensure the stability of their movement. When the protective inner shells 112 move, they drive the limiting block 116 to slide within the limiting groove 115. The precise design of the limiting groove 115 ensures the stability of the internal components. The inner shell 112 is effectively limited to prevent it from shifting or wobbling during movement, thus ensuring its sliding stability and reliability. At the same time, during the process of the device being subjected to force, the damper 125 is also subjected to pressure transmitted from the piston rod 2 and the mounting base 3. The function of the damper 125 is to cooperate with the spring 126 to form an efficient vibration control system. While the spring stores energy, the damper 125 can continuously consume energy, converting vibration into heat energy and dissipating it. This design allows the vibration system to effectively control the amplitude and frequency of vibration while maintaining a certain degree of elasticity, thereby achieving effective control of vibration and improving the stability and reliability of the entire system.
[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A shock absorber for balancing a piston rod, characterized in that: Includes a piston rod body (2), and an output rod (1) is slidably connected to the top of the piston rod body (2); The outer surface of the piston rod (2) is provided with a protective assembly (11). The protective assembly (11) includes two protective shells (111). The outer surfaces of the output rod (1) and the piston rod (2) are fixedly connected with a fixing ring (21). The outer surface of the fixing ring (21) at the bottom is inserted into the side opposite to the bottom of the two protective shells (111). The fixing ring (21) at the bottom is fixedly connected to the bottom of the two protective shells (111) by a bottom screw. The inner protective shell (112) is slidably connected to the side opposite to the two protective shells (111). A shock-absorbing assembly (12) is provided below the protective assembly (11). The shock-absorbing assembly (12) includes a shell (121). Two fixing blocks (122) are fixedly connected inside the shell (121).
2. A shock absorber for balancing a piston rod according to claim 1, characterized in that, The outer surface of the top fixing ring (21) is inserted into the side opposite to the top of the two protective inner shells (112), and the top of the top fixing ring (21) is fixedly connected to the top of the two protective inner shells (112) by screws.
3. A shock absorber for balancing a piston rod according to claim 2, characterized in that, The protective outer shell (111) and the protective inner shell (112) located on the left side are fixedly connected with several positioning pins (113) on the right side. The protective outer shell (111) located on the right side and the protective inner shell (114) located on the left side are provided with several positioning holes (114). The outer surface of the positioning pin (113) is inserted into the inner wall of the positioning hole (114).
4. A shock absorber for balancing a piston rod according to claim 3, characterized in that, Each of the two protective shells (111) has a limiting groove (115) on its opposite side. Each of the two limiting grooves (115) has a limiting block (116) slidably connected inside. Each of the two limiting blocks (116) has its opposite side fixedly connected to the opposite side surface of the two protective inner shells (112).
5. A shock absorber for balancing a piston rod according to claim 4, characterized in that, The piston rod body (2) is fixedly connected to a fixing ring two (23) on its outer surface. The top of the fixing ring two (23) is threaded with several bolts (22). The bolts (22) penetrate the interior of the fixing ring two (23). The bottom outer surface of the bolts (22) is threadedly connected to the interior of the fixing block (122) located at the top.
6. A shock absorber for balancing a piston rod according to claim 5, characterized in that, The bottom of the fixed block (122) located at the top is fixedly connected to several sliding rods (123). A spring (124) is provided on the outer surface of the sliding rod (123). The opposite sides of the two fixed blocks (122) are in contact with the top and bottom of the spring (124).
7. A shock absorber for balancing a piston rod according to claim 6, characterized in that, The fixed block (122) located at the bottom is slidably connected to the outer surface of the slide rod (123). A damper (125) is provided on the opposite side of several slide rods (123). Some of the two fixed blocks (122) are fixedly connected to the top and bottom of the damper (125). A spring (126) is in contact with the outer surface of the damper (125). A mounting base (3) is fixedly connected to the bottom of the fixed block (122) located at the bottom.