CN220416279U - Valve element and assembly thereof, stiffness conversion valve, air spring, suspension system and vehicle - Google Patents

Abstract

The utility model relates to a case and subassembly, rigidity change-over valve, air spring, suspension system, vehicle thereof, this case subassembly is used for rigidity change-over valve, and the case subassembly includes case and gasket, and the gasket setting is provided with the mounting groove on the case at case axial tip, is provided with the installation department on the gasket, and the installation department bonds or integrated into one piece is in the mounting groove. Because the gasket adopts the bonding or integrated into one piece's mounting means to be fixed in the mounting groove, be difficult for droing, can promote the reliability that the gasket was installed on the case to be favorable to promoting the reliability of rigidity change-over valve work and extension rigidity change-over valve's life.

Description

Valve element and assembly thereof, stiffness conversion valve, air spring, suspension system and vehicle

Technical Field

The disclosure relates to the technical field of stiffness conversion valves, in particular to a valve core and a component thereof, a stiffness conversion valve, an air spring, a suspension system and a vehicle.

Background

In the related art, the stiffness conversion valve comprises a valve core and a valve rod, wherein the valve rod is connected with the valve core, and the valve core can be driven to approach or separate from the valve port through axial movement of the valve rod so as to open or close the valve port. However, during the movement of the valve core, noise is generated due to the collision between the valve core and the valve core accommodating cavity, and meanwhile, the valve core and the structure constructing the valve core accommodating cavity are damaged, so that the working reliability and the service life of the valve are affected.

Disclosure of Invention

It is an object of the present disclosure to provide a spool and an assembly thereof, a stiffness conversion valve, an air spring, a suspension system, a vehicle, with which the problems existing in the related art can be at least partially solved.

In order to achieve the above-mentioned purpose, the present disclosure provides a valve core assembly for a stiffness conversion valve, the valve core assembly includes a valve core and a gasket, the gasket sets up the axial tip of valve core, be provided with the mounting groove on the valve core, be provided with the installation department on the gasket, the installation department bonds or integrated into one piece is in the mounting groove.

Optionally, the mounting groove includes a first section and a second section, the opening direction of the first section is the same as the axial direction of the valve core, and the opening of the first section extends to the axial end face of the valve core, along the axial direction of the valve core, the projection of the first section is a first projection, and the projection of the second section (112) is a second projection, and at least part of the second projection does not fall into the first projection; the mounting portion includes a first mounting portion that fits within the first section and a second mounting portion that fits within the second section.

Optionally, the first segment extends in an axial direction of the valve spool, and the second segment extends in a radial direction of the valve spool.

Optionally, the first end of the first section is located on an axial end face of the valve spool, and the first end of the second section is in communication with the second end of the first section.

Optionally, the first segment is configured as a first annular groove disposed about a central axis of the spool, and the second segment is configured as a second annular groove disposed about the central axis.

Optionally, the second annular groove is not in communication with an outer sidewall of the valve spool.

Optionally, the first segment is configured as a first annular groove disposed about a central axis of the spool, and the second segment is configured as a bore extending in a radial direction of the spool.

Optionally, one end of the bore communicates with an outer sidewall of the spool.

Optionally, the number of the holes is plural, and the plural holes are circumferentially spaced around the central axis.

Optionally, the mounting groove includes a first section, the opening direction of the first section is the same as the axial direction of the valve core, the opening of the first section extends to the axial end face of the valve core, in the radial direction of the valve core, the width of the first end of the first section is smaller than the width of the second end of the first section, wherein the first end is the end where the opening of the first section is located, and the second end is the end where the opening is far away from the first section.

Optionally, the mounting portion is injection molded within the mounting groove.

Optionally, the number of the gaskets is two, namely a first gasket and a second gasket, and the number of the mounting grooves is two, namely a first mounting groove and a second mounting groove; the first gasket and the second gasket are respectively positioned at one axial end of the valve core, the first gasket is installed in the first installation groove, and the second gasket is installed in the second installation groove; wherein the first gasket is configured as a crash pad and the second gasket is configured as a sealing pad.

According to a second aspect of the present disclosure, there is provided a valve spool, which is the valve spool of the valve spool assembly described above.

According to a third aspect of the present disclosure, there is provided a stiffness conversion valve comprising a valve housing and the valve core assembly described above;

the valve core is positioned in the valve shell, a valve port is formed on the valve shell, and the valve core is used for being matched with the valve port to close or open the valve port.

According to a fourth aspect of the present disclosure, there is provided an air spring comprising a housing and the stiffness conversion valve described above, the stiffness conversion valve being disposed within the housing; the inside of casing is provided with main air chamber and vice air chamber, main air chamber with vice air chamber passes through the gas passage intercommunication, the rigidity change-over valve is used for realizing opening and cuting of gas passage.

According to a fifth aspect of the present disclosure, there is provided a suspension system including the air spring described above.

According to a sixth aspect of the present disclosure, there is provided a vehicle comprising: the suspension system described above, or,

the air spring; alternatively, the stiffness conversion valve described above.

Through the technical scheme, the gasket is fixed in the mounting groove in an installation mode of bonding or integrated forming, so that the gasket is not easy to fall off, the reliability of the gasket installed on the valve core can be improved, and the working reliability of the rigidity conversion valve is improved and the service life of the rigidity conversion valve is prolonged.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a schematic longitudinal cross-sectional view of a stiffness conversion valve provided by one embodiment of the present disclosure, with a valve spool in a position to close a valve port;

FIG. 2 is a schematic perspective view of a valve cartridge assembly provided in one embodiment of the present disclosure, showing a gasket and a valve cartridge;

FIG. 3 is a schematic perspective view of a gasket (first gasket) provided in one embodiment of the present disclosure;

FIG. 4 is a schematic top view of a spool assembly with a first shim omitted provided by one embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view of the valve spool of one embodiment of the present disclosure after cross-sectional view along line A-A of FIG. 3;

FIG. 6 is a schematic cross-sectional view of a valve spool according to another embodiment of the present disclosure after cross-sectional view along line A-A of FIG. 3;

FIG. 7 is a schematic cross-sectional view of a valve spool according to yet another embodiment of the present disclosure, taken along line A-A of FIG. 3.

Description of the reference numerals

A 100-stiffness switching valve; 10-valve core; 11-mounting slots; 111-first section; 112-a second section; 113-a first mounting groove; 114-a second mounting slot; 12-axial end face; 101-a first axial end face; 102-a second axial end face; 13-an outer sidewall; 14-mounting holes; 15-an annular boss; 16-step surface; 20-a gasket; 21-a first gasket; 211-top; 2112-abutment plane; 22-a second gasket; 23-a mounting part; 30-valve port; 40-valve housing; 41-a base; 411-first opening; 412-a second opening; 42-a housing; 43-sealing seat; a 50-coil assembly; 51-coil; 52-terminal; 53-magnetic ring; 61-valve stem; 62-core iron; 63-valve seat; 64-elastic members; 65-magnetism isolating pipe; 70-spool receiving chamber.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In the description of the present disclosure, it should be understood that the terms "upper," "lower," and the like indicate an orientation or a positional relationship defined based on the drawing direction shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, and a specific orientation configuration and operation, and thus should not be construed as limiting the present disclosure, and furthermore, the terms "inner and outer" refer to the inside and outside of the corresponding structural profile. In addition, the terms "first," "second," etc. are merely intended to distinguish one element from another element, and are not sequential or important.

In the description of the present disclosure, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "mounted" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through intermediate pieces. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

As mentioned above, in the related art, noise is generated due to collision of the valve cartridge with the cartridge accommodating chamber, and at the same time, damage is caused to the valve, affecting the service life of the valve. Particularly when the valve is a stiffness conversion valve, if the valve core or the structure of the valve core accommodating cavity is damaged, the reliability of stiffness conversion of the stiffness conversion valve is affected, the stiffness conversion can be disabled, and the service life of the stiffness conversion valve is also affected.

The stiffness conversion valve is a valve for converting the stiffness of an application object (such as a suspension system), and in an air spring of the suspension system of a vehicle, the stiffness conversion valve may be employed to communicate a main air chamber and an auxiliary air chamber of the air spring, or to intercept communication of the main air chamber and the auxiliary air chamber (even if the main air chamber and the auxiliary air chamber of the air spring are not communicated), thereby enabling the suspension system to realize conversion between different stiffnesses.

In view of this, as shown in fig. 1 to 7, the present disclosure provides a valve element assembly, a valve element belonging to the valve element assembly, a stiffness conversion valve including the valve element assembly, and an air spring including the stiffness conversion valve, where the stiffness conversion valve may be an electric valve, a mechanical valve, a pneumatic valve, etc., and the present disclosure is not limited thereto.

The air spring can further comprise a shell, the stiffness conversion valve can be arranged in the shell, a main air chamber and an auxiliary air chamber are arranged in the shell, the main air chamber and the auxiliary air chamber are communicated through an air channel, the stiffness conversion valve is used for realizing the opening and the cutting of the air channel, the stiffness of the air spring can be changed by controlling the opening and the cutting of the air channel through the stiffness conversion valve, and therefore the suspension system can realize the stiffness conversion. The construction and operation of air springs are well known to those skilled in the art and will not be described in detail herein.

As shown in fig. 1, the stiffness conversion valve may include a valve housing, the stiffness conversion valve 100 having a spool receiving chamber 70, and the spool 10 may be located in the spool receiving chamber 70, wherein the spool receiving chamber 70 may be defined by a valve seat and a seat of the stiffness conversion valve together, the valve housing having a valve port formed thereon for cooperating with the valve port of the valve to close or open the valve port.

As shown in fig. 1 to 7, the valve core assembly provided by the present disclosure is used for a stiffness conversion valve 100, the valve core assembly includes a valve core 10 and a gasket 20, the gasket 20 is disposed at an axial end portion of the valve core 10, a mounting groove 11 is disposed on the valve core 10, the mounting groove 11 may include a first mounting groove 113 shown in fig. 5 and a second mounting groove 114 shown in fig. 6, a mounting portion 23 is disposed on the gasket 20, and the mounting portion 23 is bonded (e.g., by an adhesive material such as a structural adhesive) or integrally formed (e.g., injection molded) in the mounting groove 11. The gasket 20 may be used as a crash pad or a seal.

In assembly, the gasket 20 may be adhered or integrally formed in the mounting groove 11 of the valve core 10 to serve as a crash pad. Referring to fig. 2, a gasket 20 of the crash pad may be provided at an upper end of the valve 10. During the movement of the valve core 10, when the valve core 10 moves to a predetermined position in the valve housing 40 in the axial direction thereof, the valve core 10 and the structure (such as the valve seat 63) constructing the valve core accommodating chamber 70 can be protected due to the buffer action of the gasket 20, so that the failure of the rigidity conversion valve 100 caused by the damage of the rigidity conversion valve 100 is avoided, that is, the reliability of the operation of the rigidity conversion valve 100 can be improved and the service life of the rigidity conversion valve 100 can be prolonged.

Because the gasket 20 is fixed in the mounting groove 11 by adopting an adhesive or integrally formed mounting mode, the gasket is not easy to fall off, and the reliability of the gasket 20 mounted on the valve core 10 can be improved, thereby being beneficial to improving the working reliability of the rigidity conversion valve 100 and prolonging the service life of the rigidity conversion valve 100.

It will be appreciated that in the present disclosure, only one gasket 20 may be provided to serve as a crash pad, or two gaskets 20 may be provided, one of which serves as a crash pad and the other as a sealing pad.

When the gasket 20 is used as a gasket, referring to fig. 2, a gasket 80 may be provided at the lower end of the valve body 10, and the gasket 80 is used to seal the valve port 30 of the valve to ensure the reliability of closing the valve port 30, and avoid the failure of the stiffness conversion valve 100 due to the unreliable closing of the stiffness conversion valve 100, so that the reliability of the operation of the stiffness conversion valve 100 can be improved.

Alternatively, as shown in fig. 2, in one embodiment of the present disclosure, the number of the gaskets 20 is two, namely, the first gasket 21 and the second gasket 22, the number of the mounting grooves 11 on the valve core 10 is two, namely, the first mounting groove 113 and the second mounting groove 114, the first gasket 21 and the second gasket 22 are respectively located at one axial end of the valve core 10, the first gasket 21 is mounted on the first mounting groove 113, and the second gasket 22 is mounted on the second mounting groove 114, wherein the first gasket 21 is configured as an anti-collision gasket, and the second gasket 22 is configured as a sealing gasket. Therefore, the effects of reducing collision noise, protecting the rigidity conversion valve and improving the working reliability of the rigidity conversion valve can be achieved simultaneously.

The material of the gasket 20 is not limited in this disclosure, as long as it can perform a collision buffering or sealing function, and for example, the gasket 20 may be a silica gel gasket, a rubber gasket, a spring gasket, or the like.

The present disclosure is not limited to the specific shape of the mounting groove 11, and alternatively, as shown in fig. 5, in one embodiment of the present disclosure, the mounting groove 11 (including the first mounting groove 113 and the second mounting groove 114) may be shaped as an annular mounting groove having an opening direction identical to the axial direction of the valve cartridge 10 and an opening extending to an axial end surface of the valve cartridge 10.

It is understood that the specific shapes of the first mounting groove 113 and the second mounting groove 114 may be the same or different, which is not limited in this disclosure.

For convenience of description, other modifications of the first mounting groove 113 will be mainly described below, and it is understood that the second mounting groove 114 may have the same modifications as the first mounting groove 113.

As shown in fig. 6 and 7, in other embodiments of the present disclosure, the mounting groove 11 includes a first segment 111 and a second segment 112, the opening direction of the first segment 111 is the same as the axial direction of the spool 10, and the opening of the first segment 111 extends to the axial end face 12 of the spool 10, for example, to the first axial end face 101 shown in fig. 5, the projection of the first segment 111 is a first projection, the projection of the second segment 112 is a second projection, and at least part of the second projection does not fall within the first projection, that is, in a projection plane perpendicular to the axial direction of the spool 10, the projection of the first segment 111 on the projection plane is a first projection, the projection of the second segment 112 on the projection plane is a second projection, and the mounting portion 23 of the gasket 20 includes a first mounting portion fitted within the first segment 111 and a second mounting portion fitted within the second segment 112. The mounting groove 11 is designed to have the structure comprising the first section 111 and the second section 112, so that the mounting part 23 of the gasket 20 is conveniently connected to the axial end face 12 of the valve core 10, and meanwhile, the reliability of the mounting of the gasket 20 on the valve core 10 can be improved through the limiting function of the second section 112, so that the mounting part 23 of the gasket 20 is not easy to deviate from the mounting groove 11, and the reliability of the mounting of the gasket 20 is improved.

It is understood that the first projection may include a projection of a groove wall of the first segment 111 (e.g., a first groove wall) onto the projection surface and a projection of a hollow region defined by the first groove wall onto the projection surface.

In some embodiments of the present disclosure, the first segment 111 may extend in an axial direction of the valve spool 10 and the second segment 112 may extend in a radial direction of the valve spool 10.

Alternatively, as shown in fig. 6, a first end (i.e., an open end) of the first segment 111 is located on the axial end face 12 of the spool 10, and a first end of the second segment 112 communicates with a second end of the first segment 111, in other words, the first segment 111 and the second segment 112 communicate with each other. So designed, referring to fig. 6 and 7, since the second section 112 communicates with the second end of the first section 111, the first and second mounting portions 232 can be easily and quickly mounted into the corresponding first and second sections 111 and 112, and particularly when the gasket 20 is mounted by injection molding, the first and second mounting portions can be directly formed by injection molding from the first end of the first section 111.

Referring to fig. 6, as an alternative embodiment, the first section 111 may be configured as a first annular groove disposed around a central axis of the valve core 10, and the second section 112 may be configured as a second annular groove disposed around the central axis, referring to fig. 6, at this time, in a longitudinal section of the valve core 10, the first section 111 and the second section 112 may be configured as L-shaped structures, at this time, the structure of the installation groove 11 is simple, and the design of the annular groove increases the contact area of the gasket 20 and the valve core 10, so that the installation reliability may be improved.

The second annular groove may or may not be in communication with the outer sidewall 13 of the valve core 10, that is, the second annular groove may or may not extend to the outer sidewall 13, and this disclosure is not limited thereto.

As shown in fig. 6, in one aspect of the present disclosure, the second annular groove is not in communication with the outer sidewall 13 of the valve cartridge 10, which may enhance the aesthetics of the valve cartridge 10.

Referring to fig. 7, as a further alternative embodiment, the first section 111 is configured as a first annular groove arranged around the center axis of the valve cartridge 10, and the second section 112 is configured as a hole extending in the radial direction of the valve cartridge 10, in other words, the second section 112 of the mounting groove 11 is in this case a hole structure.

The hole may or may not be in communication with the outer sidewall 13 of the valve core 10, i.e., one end of the hole may be located on the outer sidewall 13 or may not extend to the outer sidewall 13, which is not limited in this disclosure.

Alternatively, as shown in fig. 7, in one embodiment of the present disclosure, one end of the bore communicates with the outer sidewall 13 of the valve cartridge 10, i.e., one end of the bore communicates with the outer sidewall 13 of the valve cartridge 10. Thus, when the hole is machined, the outer side wall 13 can be machined inwards, the hole is machined conveniently, and the machining difficulty can be reduced.

In order to further improve the reliability of the installation of the gasket 20 with the valve cartridge 10, as shown in fig. 7, the number of holes may be plural, and the plural holes may be circumferentially spaced around the central axis. Also, the second mounting portion 232 of the spacer 20 may be provided in plurality to be fitted with the holes one by one.

Alternatively, the plurality of holes may be equally circumferentially spaced about the central axis.

It will be appreciated that the bore may extend radially away from the outer sidewall 13 only to communicate with the lower end of the first section 111, or the other end of the bore may continue to extend a distance toward the central axis of the spool 10 as shown in fig. 7.

In some embodiments of the present disclosure, as shown in fig. 5 to 7, the width of the first end of the first section 111 may be smaller than the width of the second end of the first section 111 in the radial direction of the valve core 10, where the first end is the end of the first section 111 where the opening is located, and the second end is the end of the first section 111 away from the opening, so that the first section 111 is formed as a closed groove structure with a small width of the opening and a large width of the bottom. By the design, the first installation part can be effectively prevented from being separated from the first section 111, so that the installation reliability of the gasket 20 on the valve core 10 can be integrally improved.

As shown in fig. 2 and 3, the first pad 21 serving as a crash pad in the pad 20 may include, in addition to the mounting portion 23, a butt portion 211 connected to the mounting portion 23, and an end of the butt portion 211 remote from the mounting portion 23 is provided with a butt plane 2112.

During the movement of the valve element 10, when the valve element 10 moves to a predetermined position in the valve housing 40 in the axial direction thereof, the end of the abutting portion 211 away from the mounting portion 23 will be in contact with the inner wall of the valve element accommodating chamber 70 (e.g., the upper inner wall in the direction of the drawing of fig. 1), and noise generated by collision of the valve element 10 with the inner wall of the valve element accommodating chamber 70 can be reduced by the deformation buffering of the abutting portion 211.

Moreover, since the abutting portion 211 and the abutting surface matched with the valve core accommodating cavity 70 are plane surfaces, namely the abutting surface 2112, the abutting surface and the inner wall of the valve core accommodating cavity 70 can form full contact, which is beneficial to enabling the abutting portion 211 and the inner wall of the valve core accommodating cavity 70 to form stable abutting support in the compression process, preventing the valve core 10 from generating offset in the axial direction of the stiffness conversion valve 100, namely preventing the axial direction of the valve core 10 and the moving direction of the valve core 10 in the valve core accommodating cavity 70 from generating offset, so that the shaking of the core iron 62 connected with the valve core 10 can be avoided, and further, the risk of noise generated due to the shaking of the core iron 62 (such as the magnetic isolation tube 65 of the stiffness conversion valve 100) can be avoided or reduced. The valve core 10 is prevented from being shifted in the axial direction of the stiffness conversion valve 100, so that the smoothness of the movement of the valve core 10 in the valve core accommodating cavity 70 is ensured to a certain extent, the reliability of opening or closing the valve port 30 of the valve core 10 can be improved, and the failure of stiffness conversion of the stiffness conversion valve 100 caused by unsmooth movement of the valve core 10 is avoided.

Alternatively, as shown in fig. 1, 2 and 5 to 7, in some embodiments of the present disclosure, an annular boss 15 and a stepped surface 16 are formed at one axial end of the valve core 10, and a second gasket 22 is formed in an annular shape and is sleeved on the annular boss 15, and an opening corresponding to the mounting hole 14 on the valve core 10 is provided on the sealing gasket 80. The mounting portion 23 of the second gasket 22 is adhered or integrally formed in a second mounting groove 114 on the spool 10, the second mounting groove 114 being provided on the second axial end surface 102 of fig. 5. In addition, the second gasket 22 is further provided with a plug portion that mates with the step surface 16, and the plug portion is bonded to the step surface 16.

In the present disclosure, as shown in fig. 2, 4 to 7, the valve body 10 is formed with a mounting hole 14, and the mounting hole 14 is used to connect, such as welding or interference fit, with the valve stem 61 of the stiffness conversion valve 100.

The present disclosure does not limit the specific structure of the stiffness conversion valve 100, alternatively, as shown in fig. 1, the valve housing 40 of the stiffness conversion valve 100 includes a base 41 and a housing 42, the stiffness conversion valve 100 further includes a coil assembly 50 and a valve body assembly, the valve body assembly includes a valve rod 61, a core iron 62, a valve seat 63 and an elastic member 64, the core iron 62 is movably disposed inside the housing 42, a spool accommodating chamber 70 is formed between the valve seat 63 and the base 41, the spool 10 is accommodated in the spool accommodating chamber 70, the valve rod 61 is disposed through the valve seat 63, the spool 10 is connected with the core iron 62 through the valve rod 61, the coil assembly 50 is disposed outside the core iron 62 for providing a magnetic force for moving the core iron 62 toward the port, the elastic member 64 is connected between the core iron 62 and the valve seat 63 for providing a restoring force to the core iron 62, the base 41 is provided with a first opening 411 and a second opening 412, and the first opening 411 and the second opening 412 are communicated through the valve port 30.

When the coil assembly 50 is in the de-energized state, the valve spool 10 may remain in a position to open the valve port 30 under the influence of the resilient member 64. When the valve port 30 needs to be closed, the coil assembly 50 can be electrified to generate a magnetic field, the elastic force of the elastic member 64 is overcome, the core iron 62 is driven to move towards the base 41 side, the valve core 10 and the base 41 are sealed, and the valve port 30 can be closed, so that the first opening 411 and the second opening 412 are cut off. When the power to the coil assembly 50 is turned off, the core 62 can move in a direction away from the valve port 30 by the elastic member 64, and the valve port 30 is re-opened, so that the first opening 411 and the second opening 412 are communicated.

The elastic member 64 may be a spring, a spring plate, an elastic block, etc., which is not limited in this disclosure.

As shown in fig. 1, the coil assembly 50 may include a coil 51, a terminal 52, and a magnetically permeable ring 53, the valve housing 40 may further include a seal seat 43, and the valve core assembly may further include a magnetically isolated tube 65. The magnetism insulator 65 is sleeved outside the core iron 62, and the lower end of the magnetism insulator 65 is connected with the valve seat 63. The magnetic ring 53 is disposed between the terminal 52 and the coil 51, the coil 51 is electrically connected with the terminal 52, and is sleeved on the magnetism isolating tube 65, the sealing seat 43 is connected to the upper end of the casing 42, and the terminal 52 is disposed through the sealing seat 43 for being electrically connected with the power supply structure. In this manner, the base 41, the spool assembly and the coil assembly 50 may be combined together by the housing 42 while the seal seat 43 is fixed to the outer periphery of the housing 42 and the coil assembly 50. By providing the magnetism isolating pipe 65, the magnetic flux leakage of the iron core can be effectively reduced, and the efficiency and the sensitivity of the valve can be improved.

In the present disclosure, the use scenario of the stiffness conversion valve 100 is not limited, and it may be applied to any suitable object, for example, the stiffness conversion valve 100 may be applied to an air spring, such that the main air chamber and the auxiliary air chamber of the air spring are connected and disconnected, or the stiffness conversion valve 100 may be applied to other structures on a vehicle adapted to convert stiffness using the stiffness conversion valve.

In an embodiment in which the stiffness conversion valve 100 is applied to an air spring, the first opening 411 may communicate with one of the main air chamber and the sub air chamber of the air spring, and the second opening 412 may communicate with the other of the main air chamber and the sub air chamber of the air spring. For example, the first opening 411 communicates with the sub air chamber, and the second opening 412 communicates with the main air chamber of the air spring, so that the communication or interception of the main air chamber and the sub air chamber can be achieved by driving the movement of the valve body 10.

It will be appreciated that the air spring of the present disclosure may be applied to an object, such as a strut of a vehicle door, in addition to being incorporated into a suspension system.

According to yet another aspect of the present disclosure, there is provided a suspension system including the air spring described above for placement between a body of a vehicle and an axle.

According to still another aspect of the present disclosure, there is provided a vehicle including any one of the stiffness conversion valve, the air spring, and the suspension system described above.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (17)

1. A valve core assembly is used for a rigidity conversion valve, and is characterized in that the valve core assembly comprises a valve core and a gasket,

the gasket is arranged at the axial end part of the valve core, the valve core is provided with a mounting groove, the gasket is provided with a mounting part, and the mounting part is adhered or integrally formed in the mounting groove.

2. The valve cartridge assembly of claim 1, wherein the mounting groove comprises a first section and a second section, the opening of the first section is in the same direction as the axial direction of the valve cartridge, and the opening of the first section extends to an axial end face of the valve cartridge;

along the axial direction of the valve core, the projection of the first section is a first projection, the projection of the second section is a second projection, and at least part of the second projection does not fall into the first projection;

the mounting portion includes a first mounting portion that fits within the first section and a second mounting portion that fits within the second section.

3. The valve cartridge assembly of claim 2, wherein the first segment extends in an axial direction of the valve cartridge and the second segment extends in a radial direction of the valve cartridge.

4. The valve cartridge assembly of claim 2, wherein the first end of the first segment is located on an axial end face of the valve cartridge and the first end of the second segment is in communication with the second end of the first segment.

5. The valve cartridge assembly of claim 4, wherein the first segment is configured as a first annular groove disposed about a centerline axis of the valve cartridge and the second segment is configured as a second annular groove disposed about the centerline axis.

6. The valve cartridge assembly of claim 5, wherein the second annular groove is not in communication with an outer sidewall of the valve cartridge.

7. The valve cartridge assembly of claim 4, wherein the first segment is configured as a first annular groove disposed about a central axis of the valve cartridge and the second segment is configured as a bore extending radially of the valve cartridge.

8. The valve cartridge assembly of claim 7, wherein one end of the bore communicates with an outer sidewall of the valve cartridge.

9. The valve cartridge assembly of claim 8, wherein the number of apertures is a plurality, the plurality of apertures being circumferentially spaced about the central axis.

10. The valve cartridge assembly of claim 1, wherein the mounting groove comprises a first section having an opening in the same direction as the axial direction of the valve cartridge, the opening of the first section extending to an axial end face of the valve cartridge, the first end of the first section having a smaller width than the second end of the first section in a radial direction of the valve cartridge, wherein the first end is an end of the first section where the opening is located, and the second end is an end of the first section remote from the opening.

11. The valve cartridge assembly of claim 1, wherein the mounting portion is injection molded within the mounting groove.

12. The valve cartridge assembly of any one of claims 1-11, wherein the number of shims is two, first and second shims, respectively, and the number of mounting slots is two, first and second mounting slots, respectively;

the first gasket and the second gasket are respectively positioned at one axial end of the valve core, the first gasket is installed in the first installation groove, and the second gasket is installed in the second installation groove;

wherein the first gasket is configured as a crash pad and the second gasket is configured as a sealing pad.

13. A spool, characterized in that it is a spool of a spool assembly according to any one of claims 1-12.

14. A stiffness conversion valve comprising a valve housing and the valve spool assembly according to any one of claims 1-12;

the valve core is positioned in the valve shell, a valve port is formed on the valve shell, and the valve core is used for being matched with the valve port to close or open the valve port.

15. An air spring comprising a housing and the stiffness conversion valve of claim 14, the stiffness conversion valve disposed within the housing;

the inside of casing is provided with main air chamber and vice air chamber, main air chamber with vice air chamber passes through the gas passage intercommunication, the rigidity change-over valve is used for realizing opening and cuting of gas passage.

16. A suspension system comprising an air spring according to claim 15.

17. A vehicle, characterized by comprising:

the suspension system of claim 16, or,

the air spring of claim 15; or,

the stiffness conversion valve according to claim 14.