Exhaust assembly for inflating pump of air suspension

Abstract

The utility model relates to the field of air suspension blast pumps, in particular to an exhaust assembly for an air suspension blast pump, which comprises a fixed-range plate, a valve plate and a valve seat, the fixed-range plate, the valve plate and the valve seat are all positioned in the blast pump, the blast pump comprises a cylinder cover and a cylinder body, and the fixed-range plate, the valve plate and the valve seat are matched between the cylinder body and the cylinder cover in an abutting manner. A first installation groove is formed in the valve seat, the range plate and the valve block are both located in the first installation groove, the valve block is installed between the bottom end face of the range plate and the bottom end face of the first installation groove in an abutting mode, a ventilation hole used for ventilation is formed in the valve seat, an airflow hole is formed in the valve block, and an airflow groove is formed in the bottom end face of the first installation groove. The airflow hole, the vent hole and the airflow groove are communicated with one another, and in the working process of the valve block, the valve block guides particle media to enter the airflow groove, so that the particle media are deposited, and the effect of cleaning gas is achieved.

Description

Technical Field

[0001] The utility model relates to the field of air suspension pumps, in particular to an exhaust assembly for air suspension pumps. Background Art

[0002] In the air suspension system, the main function of the air pump is to provide enough compressed air for the air spring, thereby changing the stiffness of the spring and the damping of the shock absorber, and adjusting the height of the vehicle and the shock absorption effect. At the same time, through the cooperation of sensors and on-board computers, the air suspension system can sense the posture of the vehicle body and the movement of the wheels in real time, and automatically adjust the height and damping to adapt to different driving needs and road conditions.

[0003] The exhaust assembly for an air suspension pump usually includes a valve plate, a stop plate, and a valve seat. The valve plate is fixed to the valve seat by riveting the stop plate. The stop plate controls the opening angle of the valve plate. The exhaust assembly is mounted on the cylinder liner, and the cylinder head is mounted on the cylinder block to support the stop plate. The gas compressed by the piston flows through the valve plate into the air gap between the cylinder head and the exhaust assembly, and then flows into the cylinder block, thereby realizing the exhaust function of the exhaust assembly.

[0004] In the existing air suspension pump exhaust assembly, the compressed gas is usually exhausted in a direct exhaust manner, and particulate impurities in the piston are easily introduced into the cylinder body along with the gas flow, thus affecting the use of the cylinder. Utility Model Content

[0005] The utility model provides an exhaust assembly for an air suspension air pump, so as to solve the technical problem in the prior art that granular impurities in a piston easily flow into a cylinder body along with gas flow, thus affecting the use of the cylinder.

[0006] To solve the above problems, the utility model provides an exhaust assembly for an air suspension air pump adopts the following technical scheme: it includes a set-stroke plate, a valve plate, and a valve seat, the set-stroke plate, the valve plate, and the valve seat are all located in the air pump, the air pump includes a cylinder head and a cylinder body, the set-stroke plate, the valve plate, and the valve seat are abutted and fitted between the cylinder body and the cylinder head, a first mounting groove is formed on the valve seat, the set-stroke plate and the valve plate are both located in the first mounting groove, the valve plate is abutted and installed between the bottom end face of the set-stroke plate and the bottom end face of the first mounting groove, a vent hole for ventilation is provided on the valve seat, an airflow hole is provided on the valve plate, and an airflow groove is provided on the bottom end face of the first mounting groove, the airflow hole, the vent hole, and the airflow groove are interconnected, and the valve plate guides the granular medium into the airflow groove.

[0007] Furthermore, the air flow groove is configured as an annular structure, and an air flow cavity for gas flow is formed on one side of the fixed-range plate facing the valve plate, and the air flow cavity is configured as an annular structure.

[0008] Furthermore, a mounting hole is provided at the center of the fixed-range plate, a protrusion is provided on the cylinder head that fits in the mounting hole, a plurality of ventilation holes are provided on the side wall of the working part, and the ventilation holes are distributed in a circumferential direction around the mounting hole, and a support portion is formed between two adjacent ventilation holes and between the ventilation hole and the mounting hole.

[0009] Furthermore, the valve seat is provided with a limiting portion for limiting the stroke plate at the first mounting groove, so that the first mounting groove forms a mounting portion and an opening portion, the diameter of the mounting portion is larger than the diameter of the opening portion, and the stroke plate includes a fixing portion and a working portion, the fixing portion and the limiting portion are abutted against each other, and based on the bottom end face of the first mounting groove, the height of the top end face of the working portion is higher than the height of the top end face of the limiting portion.

[0010] Furthermore, a coating is provided on the surface of the first installation groove that abuts against the valve plate, an end surface of the protrusion that faces the fixed-range plate, and a surface of the first installation groove that abuts against the protrusion.

[0011] Furthermore, the central axes of the cylinder head, the stop plate, the valve seat and the cylinder body coincide with each other.

[0012] Furthermore, a second mounting groove is arranged on one end of the valve seat away from the first mounting groove, a sealing groove is arranged on a side wall of the second mounting groove, and a sealing ring is embedded in the sealing groove.

[0013] The beneficial effects of an exhaust assembly for an air suspension air pump provided by the utility model are as follows: the air flow holes can effectively balance the pressure on both sides of the valve plate, ensuring that the valve plate has good sealing performance in a closed state, while being able to smoothly pass gas in an open state, and the air flow holes with a planar spiral structure can guide the fluid to flow along a specific path, helping to reduce turbulence and eddy currents of the fluid at the valve plate, reducing energy loss and noise, and during the operation of the valve plate, the air flow holes guide the granular medium into the air flow groove, and the width difference between the air flow holes and the air flow groove allows the granular medium to be deposited, thereby achieving the effect of cleaning the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0015] Figure 1 It is a structural schematic diagram of an exhaust assembly for an air suspension pump of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0017] Figure 3 It is a structural schematic diagram of a fixed-range plate of an exhaust assembly for an air suspension pump of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a valve seat of an exhaust assembly for an air suspension pump of the utility model;

[0019] Figure 5 The utility model is a schematic structural diagram of a valve plate of an exhaust assembly for an air suspension pump.

[0020] Description of reference numerals:

[0021] 1. Fixed plate; 11. Fixed part; 12. Working part; 121. Mounting hole; 122. Ventilation hole; 123. Support part; 13. Air flow chamber; 2. Valve plate; 21. Air flow hole; 3. Valve seat; 31. First mounting groove; 311. Mounting part; 312. Opening part; 313. Air flow groove; 32. Limiting part; 33. Ventilation hole; 34. First mounting seat; 35. Second mounting seat; 351. Second mounting groove; 3511. Sealing groove; 3512. Sealing ring; 4. Cylinder head; 41. Protrusion; 5. Coating; 6. Cylinder body. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0024] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0025] The utility model provides an exhaust assembly for an air suspension pump, such as Figures 1 to 5As shown, it includes a fixed-range plate 1, a valve plate 2, and a valve seat 3. The fixed-range plate 1, the valve plate 2, and the valve seat 3 are all located in the air pump. The air pump includes a cylinder head 4 and a cylinder body 6. The fixed-range plate 1, the valve plate 2, and the valve seat 3 are abutted and fitted between the cylinder body 6 and the cylinder head 4. A first mounting groove 31 is formed on the valve seat 3. The fixed-range plate 1 and the valve plate 2 are both located in the first mounting groove 31. The valve plate 2 is abutted and installed between the bottom end surface of the fixed-range plate 1 and the bottom end surface of the first mounting groove 31. A vent 33 for ventilation is provided on the valve seat 3, an air flow hole 21 is provided on the valve plate 2, and an air flow groove 313 is provided on the bottom end surface of the first mounting groove 31. The air flow hole 21, the air vent 33, and the air flow groove 313 are interconnected, and the valve plate 2 guides the granular medium into the air flow groove 313.

[0026] By adopting the above-mentioned technical scheme, the air flow hole 21 can effectively balance the pressure on both sides of the valve plate 2, ensuring that the valve plate 2 has good sealing performance in the closed state, and can smoothly pass the gas in the open state, and the air flow hole 21 with a planar spiral structure can guide the fluid to flow along a specific path, which helps to reduce the turbulence and eddy current of the fluid at the valve plate 2, reduce energy loss and noise, and guide the granular medium into the air flow groove 313 during the operation of the valve plate 2, so that the granular medium is deposited to achieve the effect of cleaning the gas.

[0027] In this embodiment, the air flow hole 21 is a planar spiral structure, and the width of the air flow hole 21 is smaller than the width of the air flow groove 313. In other embodiments, the air flow hole 21 can also be set to a variety of structures such as an annular hole, a strip hole, etc., or the air flow hole 21 can also be set to be equal to the width of the air flow groove 313. When the valve plate 2 is installed, the air flow hole 21 and the air flow groove 313 are staggered to limit the flow of the particulate medium in the gas, so that the particulate medium deposition can be realized to achieve the effect of cleaning the gas.

[0028] In this embodiment, the valve seat includes one, two or more grooves, which can be used for installation, limiting, support, etc. The fixed stroke plate and the valve plate are both embedded in the first installation groove.

[0029] In this embodiment, the three parts of the fixed-range plate 1, the valve plate 2 and the valve seat 3 are assembled together by riveting the valve seat 3. The air pump compresses the external air and sends it into the inflated object through the continuously reciprocating piston. During the compression process of the cylinder piston, when the air pump is working, the gas is compressed in the cylinder. Due to the existence of the valve plate 2, the gas can only enter the cylinder but cannot flow out of the cylinder. When the compression reaches a certain level, the gas pushes the valve plate 2 and opens, so that the gas passes through the fixed-range plate 1, the gap between the cylinder head 4 and the fixed-range plate 1, and the gap between the cylinder head 4 and the valve body in turn into the gap between the cylinder body 6 and the cylinder body 6 to achieve exhaust. When the gas is exhausted, the valve plate 2 will be closed again due to its own elasticity or external force, waiting for the next compression and exhaust process.

[0030] In this embodiment, the airflow groove 313 is configured as an annular structure, and an airflow cavity 13 for gas flow is formed on the side of the fixed plate 1 facing the valve plate 2. The airflow cavity 13 is configured as an annular structure, which can distribute the fluid and ensure that the fluid can flow smoothly and unimpeded when passing through the airflow hole 21 of the valve plate 2, which helps to reduce fluid resistance and improve the efficiency of the air pump. The annularly designed airflow groove 313 and airflow cavity 13 can form a good match with the airflow hole 21 on the valve plate 2. When the valve plate 2 is closed, the gap between the airflow groove 313 and the airflow hole 21 can be further reduced, thereby improving the sealing performance and preventing gas backflow.

[0031] In this embodiment, the fixed plate 1 is provided with a mounting hole 121 at the center, the cylinder head 4 is provided with a protrusion 41 that fits with the mounting hole 121, and the side wall of the working part 12 is provided with a plurality of ventilation holes 122, which are distributed along the circumferential direction around the mounting hole 121, and a support portion 123 is formed between two adjacent ventilation holes 122 and between the ventilation hole 122 and the mounting hole 121. In this embodiment, the central axes of the mounting hole 121, the protrusion 41, and the vent hole 33 coincide with each other, and the mounting hole The fit between 121 and the protrusion 41 ensures the precise installation and positioning between the cylinder head 4 and the stop plate 1, making the installation tooling of the cylinder head 4 simple, without the need to control the stop displacement, and ensuring the stability of the stop plate 1. The gas compressed by the piston is discharged through the vent hole 33 and discharged through the vent hole 122 to the gap between the cylinder head 4 and the stop plate 1 and the gap between the cylinder head 4 and the valve body. The support portion 123 facilitates the passage of the cylinder head 4, facilitates the installation of the cylinder head 4, and can effectively prevent damage to the stop plate 1.

[0032] In this embodiment, the valve seat 3 is provided with a limiting portion 32 for limiting the limiter plate 1 at the first mounting groove 31, so that the first mounting groove 31 forms a mounting portion 311 and an opening portion 312, the diameter of the mounting portion 311 is larger than the diameter of the opening portion 312, the limiter plate 1 includes a fixing portion 11 and a working portion 12, the fixing portion 11 and the limiting portion 32 are abutted against each other, the setting of the limiting portion 32 widens the riveting support surface of the valve plate, ensures the stability of the component, and enables the component to maintain its shape and function under high-pressure and high-speed airflow conditions, ensures the stable operation of the air pump, and facilitates the tooling guidance of the cylinder head 4.

[0033] It should be noted that, based on the bottom end surface of the first installation groove 31 , the height of the top end surface of the working portion 12 is higher than the height of the top end surface of the limiting portion 32 , so that the cylinder head 4 is installed.

[0034] In this embodiment, the valve seat 3 is configured as a stepped component, and the valve seat 3 includes a first mounting seat 34 and a second mounting seat 35. The first mounting groove 31 is located at the first mounting seat 34, and the second mounting seat 35 is connected to the cylinder body 6. The openings of the first mounting seat 34 and the second mounting seat 35 are respectively located at the upper and lower end surfaces of the valve seat 3. In order to make the valve seat 3 more firm and reliable, the ratio between the outer diameter of the first mounting seat 34 and the outer diameter of the second mounting seat 35 is 1:(0.4-0.8). In this embodiment, the ratio between the outer diameter of the first mounting seat 34 and the outer diameter of the second mounting seat 35 is 1:0.63.

[0035] In this embodiment, the surface on the first mounting groove 31 that abuts against the valve plate 2, the end surface of the protrusion 41 facing the fixed-range plate 1, and the surface on the first mounting groove 31 that abuts against the protrusion 41 are all provided with a coating 5, so that the connection stability between the cylinder head 4 and the exhaust component is higher, and the noise during the operation of the product can be effectively reduced. In this embodiment, the valve seat 3 is riveted so that the protrusion 41 abuts against the valve seat 3.

[0036] In this embodiment, the central axes of the cylinder head 4, the stop plate 1, the valve seat 3, and the cylinder body 6 coincide with each other. The cylinder head 4, the exhaust assembly, and the cylinder body 6 are sequentially sleeved and connected from top to bottom. A second mounting groove 351 is provided on the end of the valve seat 3 away from the first mounting groove 31 (located at the second mounting seat 35). The second mounting groove 351 is used to install the cylinder body 6 and the piston. A sealing groove 3511 is provided on the side wall of the second mounting groove 351. A sealing ring 3512 is embedded in the sealing groove 3511 to prevent leakage of gas compressed by the piston.

[0037] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0038] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. An exhaust assembly for an air suspension pump, characterized in that: It includes a fixed-stroke plate, a valve plate, and a valve seat. The fixed-stroke plate, the valve plate, and the valve seat are all located in an air pump. The air pump includes a cylinder head and a cylinder body. The fixed-stroke plate, the valve plate, and the valve seat are abutted and fitted between the cylinder body and the cylinder head. A first mounting groove is formed on the valve seat. The fixed-stroke plate and the valve plate are both located in the first mounting groove. The valve plate is abutted and installed between the bottom end face of the fixed-stroke plate and the bottom end face of the first mounting groove. A vent for ventilation is provided on the valve seat, an air flow hole is provided on the valve plate, and an air flow groove is provided on the bottom end face of the first mounting groove. The air flow hole, the vent, and the air flow groove are interconnected, and the valve plate guides the granular medium into the air flow groove.

2. An exhaust assembly for an air suspension pump according to claim 1, characterized in that: The air flow groove is arranged as an annular structure, and an air flow cavity for gas flow is formed on one side of the fixed-range plate facing the valve plate, and the air flow cavity is arranged as an annular structure.

3. The exhaust assembly for an air suspension pump according to claim 1, characterized in that: A mounting hole is arranged at the center of the fixed stroke plate, a protrusion is arranged on the cylinder head and fits in the mounting hole, a plurality of ventilation holes are arranged on the side wall of the working part, and the ventilation holes are distributed in a circumferential direction around the mounting hole, and a support part is formed between two adjacent ventilation holes and between the ventilation hole and the mounting hole.

4. An exhaust assembly for an air suspension pump according to claim 3, characterized in that: The valve seat is located at the first mounting groove and is provided with a limiting portion for limiting the range plate, so that the first mounting groove forms a mounting portion and an opening portion, the diameter of the mounting portion is larger than the diameter of the opening portion, the range plate includes a fixed portion and a working portion, the fixed portion and the limiting portion are abutted against each other, based on the bottom end face of the first mounting groove, the height of the top end face of the working portion is higher than the height of the top end face of the limiting portion.

5. The exhaust assembly for an air suspension pump according to claim 1, characterized in that: The surface of the first installation groove that abuts against the valve plate, the end surface of the protrusion facing the fixed-range plate, and the surface of the first installation groove that abuts against the protrusion are all provided with coatings.

6. The exhaust assembly for an air suspension pump according to claim 1, characterized in that: The central axes of the cylinder head, the travel plate, the valve seat and the cylinder body coincide with each other.

7. An exhaust assembly for an air suspension pump according to claim 6, characterized in that: A second mounting groove is arranged on one end of the valve seat away from the first mounting groove, a sealing groove is arranged on a side wall of the second mounting groove, and a sealing ring is embedded in the sealing groove.

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