CN212717755U

CN212717755U - Diaphragm type air spring with horizontal adjusting function

Info

Publication number: CN212717755U
Application number: CN202021476952.8U
Authority: CN
Inventors: 潘旻忞; 刘作印; 谭永嘉; 周亚; 徐坤; 徐帆
Original assignee: Thermal Testing Technology Suzhou Co ltd
Current assignee: Thermal Testing Technology Suzhou Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-03-16
Anticipated expiration: 2030-07-23

Abstract

A diaphragm type air spring with a horizontal adjusting function comprises a supporting platform, wherein the air spring is arranged below the supporting platform, a horizontal adjusting valve is arranged on one side of the air spring, and the horizontal adjusting valve is positioned below the supporting platform; the air spring comprises a cavity, wherein the cavity comprises an upper cavity and a lower cavity which are arranged up and down, the cavity is provided with an air inlet and an air outlet which are communicated with the upper cavity, and an air vent is arranged between the upper cavity and the lower cavity; a cover body is arranged at the lower end of the lower cavity, and an annular diaphragm is arranged between the cover body and the cavity; the cover body comprises an annular pressing plate for pressing the diaphragm and a circular top block arranged on the inner side of the pressing plate. The utility model discloses a combination of level control valve and air spring realizes intaking and the high accuracy automatic control of exhaust to the air spring, has realized the dynamic adjustment to the air spring height, and it is convenient to adjust, and air spring need not additionally to install level adjustment device, has improved portability and the practicality of air spring in the use.

Description

Diaphragm type air spring with horizontal adjusting function

Technical Field

The utility model relates to an air spring, concretely relates to from diaphragm formula air spring of taking horizontal adjustment function.

Background

The air spring is formed by filling compressed air into a sealed container and realizing the elastic action by utilizing the compressibility of the air. The air spring has ideal nonlinear elastic characteristics, after the height adjusting device is additionally arranged, the height of a vehicle body does not change along with the increase and decrease of the load, the rigidity of the spring can be designed to be lower, and the riding comfort is good.

In recent years, in the vibration isolation industry of China, air springs are often used for vibration reduction and vibration isolation, and the most applied air springs are the air springs, however, in the actual use process of the air springs, the use and adjustment of the air springs are inconvenient, and a horizontal adjusting device needs to be additionally installed, so that the diaphragm type air spring with the horizontal adjusting function is designed to solve the problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a diaphragm type air spring with a horizontal adjusting function.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: a diaphragm type air spring with a horizontal adjusting function comprises a supporting platform, wherein an air spring is arranged below the supporting platform, a horizontal adjusting valve is arranged on one side of the air spring, and the horizontal adjusting valve is positioned below the supporting platform; the air spring comprises a cavity, wherein the cavity comprises an upper cavity and a lower cavity which are arranged up and down, the cavity is provided with an air inlet and an air outlet which are communicated with the upper cavity, and a vent is arranged between the upper cavity and the lower cavity; a cover body is arranged at the lower end of the lower cavity, and an annular diaphragm is arranged between the cover body and the cavity; the cover body comprises an annular pressing plate for pressing the diaphragm and a circular top block arranged on the inner side of the pressing plate.

The preferable technical scheme is as follows: the horizontal regulating valve comprises a valve body, a first cavity is arranged in the middle of the valve body, a main valve core is arranged in the first cavity, a valve cover is arranged at the lower end of the valve body, a second cavity is arranged in the middle of the valve cover, a control valve core is arranged in the second cavity, the first cavity is communicated with the second cavity, the interior of the control valve core is communicated with the first cavity and the second cavity, the lower end of the control valve core protrudes out of the lower end of the valve cover in a static state, and the upper end of the control valve core is arranged in the first cavity; a first connecting port is arranged at one end of the valve body, a second connecting port is arranged at the other end of the valve body, the first connecting port and the second connecting port are both communicated with the first cavity, and the first connecting port is higher than the second connecting port; and a third connecting port is formed in one end of the valve cover and communicated with the second cavity.

The preferable technical scheme is as follows: the volume of the upper chamber is greater than the volume of the lower chamber.

The preferable technical scheme is as follows: the diameter of the top block is smaller than the inner diameter of the diaphragm.

The preferable technical scheme is as follows: the pressing plate is detachably arranged on the cavity.

The preferable technical scheme is as follows: the membrane is made of rubber.

Because of the application of the technical scheme, compared with the prior art, the utility model the advantage that has is:

the utility model discloses a from diaphragm formula air spring of taking horizontal adjustment function through the combination of level control valve and air spring, realizes air inlet and exhaust high accuracy automatic control to the air spring, has realized the dynamic adjustment to air spring height, and it is convenient to adjust, and air spring need not additionally to install horizontal adjusting device, has improved portability and the practicality of air spring in the use.

Drawings

Fig. 1 is an overall schematic view of the present invention.

FIG. 2 is a schematic cross-sectional view of an air spring.

Fig. 3 is a schematic sectional view (exhaust state) of the level control valve.

Fig. 4 is a schematic sectional structure view (inflated state) of the level regulating valve.

In the above drawings, the support platform 1, the air spring 2, the upper chamber 201, the lower chamber 202, the diaphragm 203, the pressure plate 204, the top block 205, the level adjustment valve 3, the valve body 301, the main valve element 302, the valve cover 303, the control valve element 304, the first connection port 305, the second connection port 306, and the third connection port 307.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 4. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1 and 2, a diaphragm type air spring with a horizontal adjusting function comprises a supporting platform 1, an air spring 2 is arranged below the supporting platform 1, a horizontal adjusting valve 3 is arranged on one side of the air spring 2, and the horizontal adjusting valve 3 is positioned below the supporting platform 1; the air spring 2 comprises a cavity, an upper cavity 201 and a lower cavity 202 are arranged in the cavity up and down, an air inlet and an air outlet communicated with the upper cavity 201 are formed in the cavity, and an air vent is formed between the upper cavity 201 and the lower cavity 202; a cover body is arranged at the lower end of the lower cavity 202, and an annular diaphragm 203 is arranged between the cover body and the cavity; the cover body includes a ring-shaped pressing plate 204 for pressing the diaphragm 203 and a circular top block 205 disposed inside the pressing plate 204. The volume of the upper chamber 201 is greater than the volume of the lower chamber 202. The top piece 205 has a diameter smaller than the inner diameter of the diaphragm 203.

Vibration isolation principle: the cover body is divided into a pressing plate 204 and a top block 205, and the pressing block is used for pressing the diaphragm 203 to prevent air leakage; the top block 205 functions to jack up an object requiring vibration isolation when the air spring 2 is operated. When the lower cavity 202 is filled with air, the top block 205 in the lower cover body is jacked up under the extrusion of the air, so that the vibration isolation and vibration reduction effects are achieved.

As shown in fig. 3 and 4, the horizontal regulating valve 3 includes a valve body 301, a first cavity is disposed in the middle of the valve body 301, a main valve element 302 is disposed in the first cavity, a valve cover 303 is disposed at the lower end of the valve body 301, a second cavity is disposed in the middle of the valve cover 303, a control valve element 304 is disposed in the second cavity, the first cavity is communicated with the second cavity, the control valve element 304 is communicated with the first cavity and the second cavity, the lower end of the control valve element 304 protrudes out of the lower end of the valve cover 303 in a static state, and the upper end of the control valve element 304 is disposed in the first cavity; one end of the valve body 301 is provided with a first connecting port 305, the other end of the valve body 301 is provided with a second connecting port 306, the first connecting port 305 and the second connecting port 306 are both communicated with the first cavity, and the first connecting port 305 is higher than the second connecting port 306; one end of the valve cover 303 is provided with a third connection port 307, and the third connection port 307 is communicated with the second cavity. When the valve body 301 is lifted, the main spool 302, the control spool 304 and the valve body 301 are displaced relative to each other, the main spool 302 abuts against the first connection port 305, and the second connection port 306 is provided in communication with the third connection port 307. When the valve body 301 descends, the main spool 302, the control spool 304 and the valve body 301 are displaced relative to each other, the control spool 304 abuts against the second connection port 306, and the first connection port 305 and the third connection port 307 are provided in communication with each other.

The adjusting principle is as follows: the horizontal regulating valve 3 is arranged on the side surface of the air spring 2, and the lower end part of the control valve core 304 is exposed out of a section of the lower end of the horizontal regulating valve 3 and is contacted with the ground when in installation; the first connection port 305 is connected with an air pump, the third connection port 307 is connected with the air spring 2, and the second connection port 306 is used for exhausting air; the air spring 2 is arranged below the supporting platform 1, when the air spring 2 is inflated, the valve body 301 moves upwards to cause relative displacement between the valve body 301 and the valve core (the valve core comprises a main valve core 302 and a control valve core 304), and after the valve body 301 rises to a certain degree, the main valve core 302 blocks the first connecting port 305 (air inlet), so that the air spring 2 is ensured not to be inflated continuously and is maintained at a set height; at this time, the third connection port 307 (inflation port) is communicated with the second connection port 306 (exhaust port), the air spring 2 is inflated through the second connection port 306 under the pressure of the support platform 1, during the exhaust process, the valve body 301 descends, the valve body 301 and the valve core generate relative displacement (equivalent to the ascending of the valve core), after the valve body 301 descends to a certain degree, the second connection port 306 (exhaust port) is blocked by the control valve core 304, the first connection port 305 (air inlet) is exposed, and the air spring 2 is inflated through the third connection port 307 (inflation port), so that the air spring 2 is inflated and deflated repeatedly in such a cycle, a certain dynamic balance is maintained, and all the air springs 2 are kept at the same horizontal position. The cavity of the air spring 2 is provided with an upper cavity 201 and a lower cavity 202, wherein the lower cavity 202 is smaller, and the upper cavity 201 is larger; when the air spring is used, air enters from the upper chamber 201 and then is filled into the lower chamber 202 through the air vent, and the natural frequency of the air spring 2 is adjusted through the air pressure ratio of the upper chamber 202 to the lower chamber 202, so that the applicability of the air spring 2 to different types of vibration conditions is realized.

The preferred embodiment is: as shown in fig. 2, the platen 204 is removably disposed on the chamber. The detachable fixed pressing plate 204 can be fixed through fasteners such as bolts and the like, so that the disassembly, assembly and maintenance and the like are facilitated.

The preferred embodiment is: the material of the membrane 203 is rubber. The rubber diaphragm 203 is made by a special process, and a fiber layer is added in the middle of the rubber to strengthen the rubber and prevent the rubber from having too much ductility.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a from diaphragm formula air spring of taking level (l) ing function, includes supporting platform, its characterized in that: an air spring is arranged below the supporting platform, a horizontal adjusting valve is arranged on one side of the air spring, and the horizontal adjusting valve is positioned below the supporting platform; the air spring comprises a cavity, wherein the cavity comprises an upper cavity and a lower cavity which are arranged up and down, the cavity is provided with an air inlet and an air outlet which are communicated with the upper cavity, and a vent is arranged between the upper cavity and the lower cavity; a cover body is arranged at the lower end of the lower cavity, and an annular diaphragm is arranged between the cover body and the cavity; the cover body comprises an annular pressing plate for pressing the diaphragm and a circular top block arranged on the inner side of the pressing plate.

2. The diaphragm air spring with level adjustment of claim 1, wherein: the horizontal regulating valve comprises a valve body, a first cavity is arranged in the middle of the valve body, a main valve core is arranged in the first cavity, a valve cover is arranged at the lower end of the valve body, a second cavity is arranged in the middle of the valve cover, a control valve core is arranged in the second cavity, the first cavity is communicated with the second cavity, the interior of the control valve core is communicated with the first cavity and the second cavity, the lower end of the control valve core protrudes out of the lower end of the valve cover in a static state, and the upper end of the control valve core is arranged in the first cavity; a first connecting port is arranged at one end of the valve body, a second connecting port is arranged at the other end of the valve body, the first connecting port and the second connecting port are both communicated with the first cavity, and the first connecting port is higher than the second connecting port; and a third connecting port is formed in one end of the valve cover and communicated with the second cavity.

3. The diaphragm air spring with level adjustment of claim 2, wherein: the volume of the upper chamber is greater than the volume of the lower chamber.

4. The diaphragm air spring with level adjustment of claim 3, wherein: the diameter of the top block is smaller than the inner diameter of the diaphragm.

5. The diaphragm air spring with level adjustment function of claim 4, wherein: the pressing plate is detachably arranged on the cavity.

6. The diaphragm air spring with level adjustment of claim 5, wherein: the membrane is made of rubber.