Air spring with overload protection function

Abstract

The utility model discloses an air spring with an overload protection function, and relates to the technical field of air springs. Comprising an outer bag, the bottom of the outer bag is fixedly connected with a fixing seat, and the top of the fixing seat is fixedly connected with an inner bag; the bottom of the limiting assembly is fixedly connected with the outer wall of the fixing base, the bottom of the buffering assembly is fixedly connected with the top of the limiting assembly, and the limiting assembly is arranged, so that when the overload condition occurs, the limiting assembly can limit deformation of an outer bag of the air spring; according to the air spring with the overload protection function, the limiting rod and the sliding rod on the supporting seat limit the moving range of the sliding seat, and then the sliding seat is fixedly connected with the outer bag and the inner bag, so that blocking type limitation on deformation of the whole outer bag is achieved, the outer bag can be prevented from being excessively deformed due to overlarge pressure, and the purpose of the air spring with the overload protection function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of air spring technology, specifically to an air spring with overload protection function. Background Technology

[0002] In numerous industrial sectors and various mechanical equipment applications, air springs, as an important elastic support and shock absorption component, are widely used in fields such as transportation, industrial automation equipment, and precision instruments. With their adjustable elastic characteristics and excellent shock absorption and buffering capabilities, they can effectively reduce vibration and impact during equipment operation, providing strong support for stable equipment operation and extended service life.

[0003] However, with the continuous development of modern industry, the working environment of equipment is becoming increasingly complex, and the working conditions are becoming more and more diverse. In practical applications, air springs often encounter overload situations that exceed their normal load-bearing range. For example, in the transportation sector, vehicles may experience sudden and severe bumps during operation, such as driving over deep potholes or encountering strong collisions, causing the air springs in the vehicle's suspension system to instantly bear pressure far exceeding their design limits. On industrial automated production lines, when equipment is started or stopped quickly or subjected to unexpected external impacts, the air springs equipped in the relevant parts will also face the impact of overload pressure. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: an air spring with overload protection function, comprising: an outer bladder, the bottom of which is fixedly connected to a fixed base, a limiting rope fixedly connected to the outer wall of the fixed base, the limiting rope being arranged in a ring along the central axis of the fixed base, and an inner bladder fixedly connected to the top of the fixed base; a limiting component, the bottom of which is fixedly connected to the outer wall of the fixed base, the limiting component being used to limit the deformation of the outer bladder by blocking; a buffer component, the bottom of which is fixedly connected to the top of the limiting component, the buffer component being used to mitigate the impact between the outer and inner bladders by deformation; the limiting component includes a slide block, the inner wall of which is slidably connected to a limiting rod, the limiting rod being arranged in a ring along the central axis of the slide block, and a sliding rod slidably connected to the inner wall of the slide block, the sliding rod being arranged in a ring along the central axis of the slide block, and a support base fixedly connected to the bottom of the sliding rod.

[0005] Preferably, the outer wall of the limiting rod is threaded with a limiting nut, and the outer wall of the limiting rod is threaded with a positioning nut, which restricts the position of the limiting nut. The top of the support base is fixedly connected to the bottom of the fixed base.

[0006] Preferably, the top of the positioning nut contacts the bottom of the limiting nut, the bottom of the slide contacts the top of the limiting nut, the limiting nut restricts the sliding position of the slide, the outer wall of the bottom of the slide is fixedly connected to the top of the inner bladder, and the outer wall of the bottom of the slide is fixedly connected to the top of the outer bladder.

[0007] Preferably, the buffer assembly includes a buffer plate, a fixed cylinder is slidably connected to the bottom of the buffer plate, the fixed cylinder is used to limit the sliding position of the buffer plate, a fixed sleeve is slidably connected to the bottom of the buffer plate through a pressure block, and the outer wall of the pressure block is slidably connected to the inner wall of the fixed sleeve, and a buffer bladder is fixedly connected to the inner wall of the bottom of the fixed sleeve.

[0008] Preferably, the top of the buffer bladder contacts the bottom of the pressure block, the top of the pressure block is fixedly connected to the bottom of the buffer plate, a top post is fixedly connected to the inner wall of the bottom of the fixed sleeve, the top post is used to limit the movement of the pressure block, the top of the top post contacts the bottom of the pressure block, the bottom of the fixed cylinder is fixedly connected to the top of the slide, and the top of the slide is fixedly connected to the bottom of the fixed sleeve.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. This utility model, by setting a limiting component, can limit the deformation of the outer bladder of the air spring when an overload occurs. The limiting rod and slide rod on the support base limit the movement range of the slide, and then, by means of the fixed connection between the slide and the outer and inner bladders, the deformation of the overall outer bladder is blocked. This can prevent the outer bladder from being excessively deformed due to excessive pressure, thereby avoiding serious damage such as bladder rupture and air leakage that may be caused by excessive deformation. It improves the air spring's tolerance and safety when facing sudden overload pressure, and ensures that the air spring can still maintain basic structural integrity after overload, so that it can continue to be used normally or be restored to normal operation after necessary maintenance.

[0011] 2. This utility model, by setting up a buffer component and a limiting component to work together, can alleviate the impact on the outer and inner air springs. When the outer and inner air springs are impacted and the buffer component is compressed, the buffer plate moves downward along the fixed cylinder, and applies pressure to the fixed sleeve through the pressure block, causing the buffer bladder on the bottom inner wall of the fixed sleeve to deform and absorb part of the energy. At the same time, the top column and the pressure block interact to assist in buffering. The entire buffer component disperses and absorbs the strong impact brought by overload through its own deformation, reducing the direct impact force on the outer and inner air springs and avoiding serious damage to the outer and inner air springs due to overload impact. This comprehensively protects the key components of the air spring, ensuring that the air spring can maintain normal working condition as much as possible or avoid serious damage under overload conditions, thus ensuring the normal operation and safety of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the inner capsule of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the limiting component of this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the buffer component of this utility model.

[0017] In the diagram: 1. Outer bladder; 2. Limiting component; 3. Buffer component; 4. Inner bladder; 5. Fixing seat; 21. Support seat; 22. Slide rod; 23. Limiting rod; 24. Limiting nut; 25. Positioning nut; 26. Slide seat; 31. Buffer plate; 32. Pressure block; 33. Buffer bladder; 34. Top column; 35. Fixing sleeve; 36. Fixing cylinder. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0019] Please see Figure 1 - Figure 5This utility model provides a technical solution: an air spring with overload protection function, comprising: an outer bladder 1, a fixed base 5 fixedly connected to the bottom of the outer bladder 1, and an inner bladder 4 fixedly connected to the top of the fixed base 5; a limiting component 2, the bottom of the limiting component 2 fixedly connected to the outer wall of the fixed base 5, a limiting rope connected to the fixed base 5, and the limiting rope connecting the upper and lower ends of the outer bladder 1 and the inner bladder 4 to limit the deformation of the outer bladder 1 and the inner bladder 4, thereby limiting the deformation of the outer bladder 1 and the inner bladder 4. The limiting component 2 is used to limit the deformation of the outer bladder 1 by blocking. The buffer assembly 3 is fixedly connected to the top of the limiting assembly 2 by means of deformation. The buffer assembly 3 is used to relieve the impact of the outer bladder 1 and the inner bladder 4 by means of deformation. The limiting assembly 2 includes a slide 26, a limiting rod 23 is slidably connected to the inner wall of the slide 26, and the limiting rod 23 is arranged in a ring along the central axis of the slide 26. A slide rod 22 is slidably connected to the inner wall of the slide 26, and the slide rod 22 is arranged in a ring along the central axis of the slide 26. A support seat 21 is fixedly connected to the bottom of the slide rod 22.

[0020] The outer wall of the limiting rod 23 is threaded with a limiting nut 24, and the outer wall of the limiting rod 23 is threaded with a positioning nut 25. The top of the support base 21 is fixedly connected to the bottom of the fixed base 5. The top of the positioning nut 25 is in contact with the bottom of the limiting nut 24. The bottom of the slide 26 is in contact with the top of the limiting nut 24. The outer wall of the bottom of the slide 26 is fixedly connected to the top of the inner bladder 4. The outer wall of the bottom of the slide 26 is fixedly connected to the top of the outer bladder 1. The limiting rod 23 and the slide rod 22 on the support base 21 can limit the movement range of the slide 26 to a certain extent. Thus, through the connection relationship between the slide 26 and the outer bladder 1 and the inner bladder 4, the outer wall of the bottom of the slide 26 is fixedly connected to the top of the inner bladder 4 and the top of the outer bladder 1, thereby blocking and limiting the deformation of the entire outer bladder 1.

[0021] The buffer assembly 3 includes a buffer plate 31, a fixed cylinder 36 slidably connected to the bottom of the buffer plate 31, a fixed sleeve 35 slidably connected to the bottom of the buffer plate 31 via a pressure block 32, and the outer wall of the pressure block 32 slidably connected to the inner wall of the fixed sleeve 35. A buffer bladder 33 is fixedly connected to the inner wall of the bottom of the fixed sleeve 35, the top of the buffer bladder 33 is in contact with the bottom of the pressure block 32, the top of the pressure block 32 is fixedly connected to the bottom of the buffer plate 31, a top post 34 is fixedly connected to the inner wall of the bottom of the fixed sleeve 35, the top of the top post 34 is in contact with the bottom of the pressure block 32, the bottom of the fixed cylinder 36 is fixedly connected to the top of the slide block 26, and the top of the slide block 26 is fixedly connected to the bottom of the fixed sleeve 35. The buffer bladder 33 on the inner wall of the bottom of the fixed sleeve 35 will deform to absorb some energy and play a buffering role. In addition, the top post 34 on the inner wall of the bottom of the fixed sleeve 35 will also interact with the pressure block 32 to further assist the buffering process, so that the entire buffer assembly 3 can effectively alleviate the strong impact caused by overload through its own deformation.

[0022] Working principle:

[0023] When the air spring is subjected to external force, the outer bladder 1 and the inner bladder 4 will deform accordingly. Under normal working conditions, the outer bladder 1 and the inner bladder 4 can elastically deform according to the pressure they bear to play a buffering and other conventional functions. A limiting rope is connected to the fixed seat 5, which is connected to the upper and lower ends of the outer bladder 1 and the inner bladder 4 to limit the degree of deformation of the outer bladder 1 and the inner bladder 4.

[0024] However, when an overload occurs, the limiting component 2 begins to play a crucial role. During the deformation of the outer bladder 1, its deformation is limited due to the presence of the limiting component 2. Specifically, the limiting rod 23 and the sliding rod 22 on the support 21 can limit the movement range of the slide 26 itself to a certain extent. Furthermore, through the connection relationship between the slide 26 and the outer bladder 1 and the inner bladder 4, the outer wall at the bottom of the slide 26 is fixedly connected to the top of the inner bladder 4 and the top of the outer bladder 1, thus blocking and limiting the overall deformation of the outer bladder 1 and preventing damage that may result from excessive deformation of the outer bladder 1. Among them, the limiting nut 24 and the positioning nut 25 on the limiting rod 23 play the role of positioning and fixing related components, making the entire limiting structure more stable and reliable.

[0025] At the same time, the buffer assembly 3 will also work together to mitigate the impact of overload on the outer bladder 1 and inner bladder 4. When the outer bladder 1 and inner bladder 4 are impacted and the buffer assembly 3 is subjected to pressure, the buffer plate 31 will move downward along the fixed cylinder 36. It will exert pressure on the fixed sleeve 35 through the pressure block 32. At this time, the buffer bladder 33 on the bottom inner wall of the fixed sleeve 35 will deform to absorb some energy and play a buffering role. Moreover, the top column 34 on the bottom inner wall of the fixed sleeve 35 will also interact with the pressure block 32 to further assist the buffering process. This allows the entire buffer assembly 3 to effectively mitigate the strong impact caused by overload through its own deformation, thereby protecting key components such as the outer bladder 1 and inner bladder 4 of the air spring and ensuring that the air spring can maintain normal working condition as much as possible or avoid serious damage under overload conditions.

[0026] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An air spring with overload protection function, characterized in that, include: An outer capsule (1) is fixedly connected to a fixing seat (5) at its bottom, and an inner capsule (4) is fixedly connected to the top of the fixing seat (5). Limiting component (2), the bottom of the limiting component (2) is fixedly connected to the outer wall of the fixing seat (5), and the limiting component (2) is used to limit the deformation of the outer capsule (1) by blocking; The bottom of the buffer assembly (3) is fixedly connected to the top of the limiting assembly (2), and the buffer assembly (3) is used to reduce the impact on the outer capsule (1) and the inner capsule (4) by means of deformation. The limiting component (2) includes a slide (26), a limiting rod (23) is slidably connected to the inner wall of the slide (26), and the limiting rod (23) is arranged in a ring along the central axis of the slide (26). A slide rod (22) is slidably connected to the inner wall of the slide (26), and the slide rod (22) is arranged in a ring along the central axis of the slide (26). A support seat (21) is fixedly connected to the bottom of the slide rod (22).

2. An air spring with overload protection function according to claim 1, characterized in that: The outer wall of the limiting rod (23) is threaded with a limiting nut (24), and the outer wall of the limiting rod (23) is threaded with a positioning nut (25). The top of the support (21) is fixedly connected to the bottom of the fixed seat (5).

3. An air spring with overload protection function according to claim 2, characterized in that: The top of the positioning nut (25) is in contact with the bottom of the limiting nut (24), the bottom of the slide (26) is in contact with the top of the limiting nut (24), the outer wall of the bottom of the slide (26) is fixedly connected to the top of the inner bladder (4), and the outer wall of the bottom of the slide (26) is fixedly connected to the top of the outer bladder (1).

4. An air spring with overload protection function according to claim 1, characterized in that: The buffer assembly (3) includes a buffer plate (31), a fixed cylinder (36) is slidably connected to the bottom of the buffer plate (31), a fixed sleeve (35) is slidably connected to the bottom of the buffer plate (31) through a pressure block (32), and the outer wall of the pressure block (32) is slidably connected to the inner wall of the fixed sleeve (35), and a buffer bladder (33) is fixedly connected to the inner wall of the bottom of the fixed sleeve (35).

5. An air spring with overload protection function according to claim 4, characterized in that: The top of the buffer bladder (33) is in contact with the bottom of the pressure block (32), the top of the pressure block (32) is fixedly connected to the bottom of the buffer plate (31), and the inner wall of the bottom of the fixed sleeve (35) is fixedly connected with a top column (34).

6. An air spring with overload protection function according to claim 5, characterized in that: The top of the top post (34) is in contact with the bottom of the pressure block (32), the bottom of the fixed cylinder (36) is fixedly connected to the top of the slide (26), and the top of the slide (26) is fixedly connected to the bottom of the fixed sleeve (35).

Images