CN220749184U - Modular combined valve structure - Google Patents

Abstract

The embodiment of the utility model provides a modularized combined valve structure, which comprises a combined valve body and a plurality of air inlet valve structures; a plurality of parallel air inlet valve mounting chambers are arranged in the combined valve body; adjacent air inlet valve installation chambers are communicated through an air guide channel; a medium inlet is arranged on the side wall of the combined valve body; a medium outlet is arranged on the side wall of the combined valve body and is communicated with the air inlet valve mounting cavity; the intake valve structure is disposed within the intake valve mounting chamber. The combined valve body is reasonable in structural arrangement, a plurality of parallel air inlet valve installation cavities are formed in the combined valve body, integrated modularization of a plurality of control electromagnetic valves with the same specification is achieved, overall volume of the electromagnetic valves is facilitated, overall weight is reduced, only one medium inlet is needed, pipeline use on an engine is reduced, occupied space is saved, more space is provided for other components of the engine layout, structural optimization, miniaturization and light design of the engine are facilitated, and the combined valve is high in applicability and good in practicability.

Description

Modular combined valve structure

Technical Field

The utility model relates to the technical field of rocket engine valves, in particular to a modularized combined valve structure.

Background

The valve is an important part for realizing the starting and closing of the liquid rocket engine, such as the Chinese patent publication number: CN 112797184a, patent name: a pneumatic control valve mechanism for a liquid rocket engine and a rocket engine. The pneumatic valve mechanism comprises a shell, a valve core, a valve cover, a sealing element and an elastic element, wherein a first channel through which a gas or liquid medium flows and penetrates through two ends of the shell and a second channel which is different from the first channel in extending direction are arranged on the inner side of the shell, and a control channel for controlling the valve core to move is further arranged on the shell. The sealing piece is used for sealing the valve core and the inner wall of the shell.

In the process of realizing the technology, the inventor finds that at least the following problems exist in the prior art: although the air-operated valve can meet the use requirement of the general situation, in the rocket engine ignition process, in order to meet the requirement that the air-operated valve in the engine pipeline system can be independently and quickly opened or closed, the electromagnetic valve is required to be used for controlling the quick action of the air-operated valve, and in the practical application process, one engine is provided with more than one kind of electromagnetic valve or even more than ten kinds of air-operated valves, so that a large number of electromagnetic valves with the same specification are required to be provided for independent control, and are independently distributed on the engine, so that the rocket engine not only occupies a larger space, but also has a heavy structural weight, is unfavorable for the structural optimization and the small-sized light-weight design of the engine, so that the space layout and the device difficulty of the engine are increased, and the applicability and the practicability are limited.

Disclosure of Invention

Accordingly, an objective of the embodiments of the present utility model is to provide a modular combination valve structure with reasonable structural arrangement and which is beneficial for saving occupied space.

The embodiment of the utility model provides a modularized combined valve structure, which comprises a combined valve body and a plurality of air inlet valve structures;

a plurality of parallel air inlet valve mounting chambers are arranged in the combined valve body;

adjacent air inlet valve installation chambers are communicated through an air guide channel;

a medium inlet communicated with the air inlet valve mounting cavity is formed in the side wall of the combined valve body;

the side wall of the combined valve body is provided with medium outlets the same as the air inlet valve mounting chambers in number, the medium outlets are in one-to-one correspondence with the air inlet valve mounting chambers, and the medium outlets are communicated with the air inlet valve mounting chambers;

the intake valve structure is disposed within the intake valve mounting chamber.

Further preferred are: the air inlet valve installation cavity comprises a main valve air inlet cavity channel, a main valve cavity channel and a main valve back pressure cavity which are communicated and positioned on the same straight line;

the main valve back pressure cavity and the main valve cavity channel are arranged at two ends of the main valve air inlet cavity channel;

the air guide channel is arranged between the adjacent main valve air inlet channels;

the medium inlet is communicated with one of the main valve air inlet channels;

the medium outlets are in one-to-one correspondence with the main valve cavity passages, and are communicated with the main valve cavity passages;

the inlet valve structure is disposed within the main valve inlet passage and the main valve chamber passage.

Further preferred are: the air inlet valve structure comprises a main valve core, an exhaust valve core, a main valve spring, an auxiliary valve component and an electromagnetic coil;

an exhaust valve cavity is arranged on the air inlet valve mounting cavity and is arranged at one end of the main valve cavity channel far away from the main valve air inlet cavity channel;

the main valve core is connected with the exhaust valve core through a valve rod;

the main valve core is positioned in the main valve air inlet cavity, the valve rod is positioned in the main valve cavity and the exhaust valve core is positioned in the exhaust valve cavity;

the main valve spring is arranged between the main valve core and the end wall of the main valve back pressure cavity;

the solenoid is within the secondary valve assembly;

the electromagnetic coil realizes the action control of the main valve core through the auxiliary valve component.

Further preferred are: the auxiliary valve assembly comprises an auxiliary valve shell connected with the combined valve body, an auxiliary valve cavity arranged in the auxiliary valve shell and an auxiliary valve core arranged in the auxiliary valve cavity;

an auxiliary valve back pressure channel is arranged between the auxiliary valve chamber and the main valve back pressure cavity;

an auxiliary valve air inlet channel is arranged between the auxiliary valve chamber and the main valve air inlet channel;

the electromagnetic coil is connected with the auxiliary valve core, the electromagnetic coil controls the auxiliary valve assembly to act so that the auxiliary valve air inlet channel is connected with or disconnected from the auxiliary valve back pressure channel, and the air pressure of the main valve air inlet channel and the main valve back pressure cavity is changed through the main valve air inlet channel and the main valve back pressure cavity and the main valve core is caused to act.

Further preferred are: an auxiliary valve air inlet valve seat and an auxiliary valve spring are arranged on the inner wall of the auxiliary valve chamber;

the auxiliary valve air inlet valve seat is arranged at the end part of the auxiliary valve air inlet channel, the auxiliary valve spring is arranged between the auxiliary valve core and the inner wall of the auxiliary valve chamber, and the auxiliary valve spring is sleeved outside the auxiliary valve air inlet valve seat;

the electromagnetic coil is powered off, the auxiliary valve core is far away from the auxiliary valve air inlet valve seat under the action of the auxiliary valve spring, and the auxiliary valve air inlet channel is communicated;

the electromagnetic coil is electrified, the auxiliary valve core is abutted against the auxiliary valve inlet valve seat, and the auxiliary valve inlet channel is closed.

Further preferred are: a main valve air inlet valve seat is arranged on the cavity wall of the main valve air inlet cavity channel;

the main valve air inlet valve seat is arranged at the air inlet end of the main valve cavity;

the auxiliary valve air inlet channel is communicated, and the main valve core is abutted against the main valve air inlet valve seat under the action of the elasticity of the main valve spring, so that the main valve cavity channel is closed;

the auxiliary valve air inlet channel is closed, the main valve core is far away from the main valve air inlet valve seat under the action of air pressure in the main valve air inlet channel, and the main valve air inlet channel is communicated with the main valve air inlet channel.

Further preferred are: a main valve air discharge valve seat is arranged on the inner wall of the air discharge valve cavity;

the main valve air release valve seat is positioned at one end of the main valve cavity away from the main valve air inlet cavity;

the exhaust valve core and the main valve core synchronously act under the drive of the valve rod;

the main valve core is abutted against the main valve air inlet valve seat, and the exhaust valve core is far away from the main valve air outlet valve seat;

the main valve core is far away from the main valve air inlet valve seat, and the exhaust valve core is propped against the main valve air outlet valve seat.

Further preferred are: the auxiliary valve shell is provided with an auxiliary valve exhaust hole communicated with the auxiliary valve cavity;

the width of the secondary spool is smaller than the width of the secondary valve chamber.

Further preferred are: a main valve exhaust hole is formed in the exhaust valve cavity;

the width of the exhaust valve core is smaller than that of the exhaust valve cavity.

Further preferred are: the outer wall of the main valve core is provided with a sealing ring, and the main valve core seals and isolates the main valve air inlet cavity and the main valve back pressure cavity through the sealing ring.

The working principle is briefly described as follows: in the initial state, the electromagnetic coil is in a power-off state, high-pressure gas is introduced from a medium inlet of the combined valve body, the high-pressure gas immediately enters a main valve air inlet channel in parallel, then the high-pressure gas enters a main valve back pressure cavity from the main valve air inlet channel through an auxiliary valve air inlet channel and an auxiliary valve back pressure channel, the air pressure in the main valve back pressure cavity is the same as the air pressure in the main valve air inlet channel, the main valve core is attached to a main valve air inlet valve seat to form a seal under the action of the high-pressure gas, the high-pressure gas is cut off from entering the main valve cavity channel, and the high-pressure gas is cut off from flowing out from a medium outlet;

when the electromagnetic coil of any one or more auxiliary valve components in the independent air inlet valve structure is electrified, the corresponding auxiliary valve core moves towards the auxiliary valve air inlet valve seat under the suction action of the electromagnetic coil and is jointed with the auxiliary valve air inlet valve seat to form sealing, high-pressure air is cut off from entering the auxiliary valve component, meanwhile, the high-pressure air in the corresponding main valve back pressure cavity is discharged from the auxiliary valve air outlet hole through the auxiliary valve back pressure channel, at the moment, the air pressure in the main valve air inlet cavity channel is greater than the air pressure in the main valve back pressure cavity, the high-pressure air pushes the main valve core to compress the main valve spring to move downwards, the main valve core and the main valve air inlet valve seat are opened, the exhaust valve core moves downwards along with the main valve core and is jointed with the main valve air outlet valve seat to form sealing, the high-pressure air enters the main valve cavity channel from the main valve air inlet cavity channel and flows out from the medium outlet, and other three main valve cores and auxiliary valve cores which are arranged in parallel keep the original closed state, when the corresponding air inlet valve structure is required to be closed, the electromagnetic coil is only required to be powered off, at the moment, the electromagnetic coil rapidly loses the suction force to the auxiliary valve core, the auxiliary valve core moves under the combined action of high-pressure gas and an auxiliary valve spring, the auxiliary valve core is separated from an auxiliary valve air inlet valve seat, the auxiliary valve core is attached to an auxiliary valve air outlet hole to form sealing, the high-pressure gas enters the main valve back pressure cavity from the main valve air inlet cavity channel through the auxiliary valve air inlet channel and the auxiliary valve back pressure channel, the main valve core is in pressure balance in the combined valve body, at the moment, the exhaust valve core moves upwards under the combined action of the high-pressure gas thrust and the main valve spring to be separated from the main valve air outlet seat, meanwhile, the main valve core moves upwards along with the exhaust valve core, the main valve inlet valve seat forms sealing, the high-pressure gas in the main valve cavity channel is discharged from the main valve air outlet hole, and the valve is in an initial closing state.

The technical scheme has the following beneficial effects: the combined valve body is provided with a plurality of parallel air inlet valve installation cavities, so that the integrated modularization of a plurality of control electromagnetic valves with the same specification can be realized, the total volume of the electromagnetic valves is facilitated, the whole weight is reduced, the whole structure only needs one medium inlet, the use of pipelines on an engine is reduced, the risk of failure of the pipelines is reduced, the pipelines are greatly simplified, the occupied space is saved, more space is provided for other components of the engine layout, the structural optimization and the small-sized light design of the engine are facilitated, and the combined valve is high in applicability and good in practicability.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a view of the structure of FIG. 1, taken along line A-A;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;

fig. 4 is an enlarged schematic view of the structure at B in fig. 2.

Reference numerals:

1. a combined valve body;

2. an intake valve structure; 21. a main spool; 22. an exhaust valve core; 23. a main valve spring; 24. a secondary valve assembly; 241. a secondary valve housing; 242. a secondary valve chamber; 243. a secondary valve core; 244. a secondary valve back pressure passage; 245. an auxiliary valve air intake passage; 25. an electromagnetic coil;

3. an intake valve installation chamber; 31. a main valve air inlet channel; 32. a main valve cavity; 33. a main valve back pressure chamber;

4. an air guide channel;

5. a media inlet;

6. a medium outlet;

7. an exhaust valve chamber;

8. a valve stem;

9. an auxiliary valve inlet valve seat;

10. a secondary valve spring;

11. a main valve inlet valve seat;

12. a main valve vent valve seat;

13. an auxiliary valve exhaust hole;

14. a main valve exhaust hole;

15. and (3) sealing rings.

Detailed Description

Features and exemplary embodiments of various aspects of the utility model are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present utility model; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 to 4, a modular combined valve structure comprises a combined valve body 1 and a plurality of air inlet valve structures 2;

a plurality of parallel air inlet valve mounting chambers 3 are arranged in the combined valve body 1; adjacent air inlet valve installation chambers 3 are communicated through an air guide channel 4; in this embodiment, there are four parallel intake valve installation chambers 3, and in the practical application process, there may be multiple intake valve installation chambers 3, and it realizes the intake conduction of multiple intake valve installation chambers 3 through the air guide channel 4.

As shown in fig. 1, a medium inlet 5 communicating with the intake valve mounting chamber 3 is provided on the side wall of the combination valve body 1; the engine only needs one medium inlet 5, which is beneficial to reducing the number of engine pipelines and the risk of pipeline failure, greatly simplifies the pipelines, is beneficial to saving the occupied space and provides more space for other components of the engine layout.

As shown in fig. 2, the side wall of the combined valve body 1 is provided with medium outlets 6 the same as the number of the air inlet valve mounting chambers 3, the medium outlets 6 are in one-to-one correspondence with the air inlet valve mounting chambers 3, and the medium outlets 6 are communicated with the air inlet valve mounting chambers 3; the intake valve structure 2 is disposed within the intake valve mounting chamber 3. The medium outlets 6 are in one-to-one correspondence with the air inlet valve mounting cavities 3, so that the control can be independently performed, and the convenience and effectiveness of the control are improved.

As shown in fig. 1 and 2, the intake valve mounting chamber 3 includes a main valve intake passage 31, a main valve passage 32, and a main valve back pressure chamber 33 that are communicated and on the same line; the main valve back pressure cavity 33 and the main valve cavity channel 32 are arranged at two ends of the main valve air inlet cavity channel 31 when the main valve back pressure cavity and the main valve cavity channel 32 are arranged; the air guide channel 4 is arranged between the adjacent main valve air inlet channels 31; the medium inlet 5 is communicated with one of the main valve air inlet channels 31; the medium outlets 6 are in one-to-one correspondence with the main valve cavity 32, and the medium outlets 6 are communicated with the main valve cavity 32; the inlet valve structure 2 is arranged in the main valve inlet channel 31 and the main valve channel 32.

As shown in fig. 2, in the practical application process, the intake valve structure 2 includes a main valve spool 21, an exhaust valve spool 22, a main valve spring 23, a sub-valve assembly 24, and a solenoid 25; the electromagnetic coil 25 is of a conventional structure in the prior art, and is simply applied, wherein the exhaust valve core 22 and the main valve core 21 are respectively connected to two ends of the valve rod 8 in a threaded manner, and can synchronously move through the valve rod 8, the air inlet valve mounting chamber 3 is provided with an exhaust valve cavity 7, and the exhaust valve cavity 7 is arranged at one end of the main valve cavity channel 32, which is far away from the main valve air inlet cavity channel 31; the main valve core 21 is connected with the exhaust valve core 22 through the valve rod 8; the main valve core 21 is positioned in the main valve inlet cavity channel 31, the valve rod 8 is positioned in the main valve cavity channel 32 and the exhaust valve core 22 is positioned in the exhaust valve cavity 7; the main valve spring 23 is disposed between the main valve spool 21 and an end wall of the main valve back pressure chamber 33; solenoid 25 is located within secondary valve assembly 24; the solenoid 25 controls the operation of the main valve element 21 through the sub valve assembly 24. In the practical application process, the exhaust valve cavity 7 is provided with a main valve exhaust hole 14; the width of the exhaust valve spool 22 is smaller than the width of the exhaust valve chamber 7.

The main valve core 21 is operated by changing the air pressure at two ends of the main valve core 21 through the main valve air inlet cavity 31 and the main valve back pressure cavity 33 matched with the auxiliary valve assembly 24, so that the quick connection or quick closing operation is realized.

As shown in fig. 2, wherein the sub valve assembly 24 includes a sub valve housing 241 connected to the combination valve body 1, a sub valve chamber 242 provided in the sub valve housing 241, and a sub valve spool 243 provided in the sub valve chamber 242; in this embodiment, the auxiliary valve housing and the combined valve body 1 may be fixedly connected in a sealing manner, or may be integrally formed, and in the actual application process, an auxiliary valve back pressure channel 244 is provided between the auxiliary valve chamber 242 and the main valve back pressure chamber 33; a secondary valve inlet passage 245 is arranged between the secondary valve chamber 242 and the primary valve inlet passage 31; in operation, the solenoid 25 is connected to the auxiliary spool 243, and the solenoid 25 controls the auxiliary valve assembly 24 to operate to turn the auxiliary valve inlet passage 245 on or off the auxiliary valve back pressure passage 244, and changes the air pressure through the main valve inlet passage 31 and the main valve back pressure chamber 33 to operate the main spool 21.

As shown in fig. 2, a secondary valve inlet valve seat 9 and a secondary valve spring 10 are arranged on the inner wall of the secondary valve chamber 242; the auxiliary valve air inlet valve seat 9 is arranged at the end part of the auxiliary valve air inlet channel 245, the auxiliary valve spring 10 is arranged between the auxiliary valve core 243 and the inner wall of the auxiliary valve chamber 242, and the auxiliary valve spring 10 is sleeved outside the auxiliary valve air inlet valve seat 9; when the auxiliary valve is operated, the electromagnetic coil 25 is powered off, the auxiliary valve core 243 is far away from the auxiliary valve air inlet valve seat 9 under the action of the auxiliary valve spring 10, and the auxiliary valve air inlet channel 245 is communicated; the solenoid 25 is energized, the sub-spool 243 abuts on the sub-valve intake valve seat 9, and the sub-valve intake passage 245 is closed.

As shown in fig. 1, 2 and 3, a main valve intake valve seat 11 is provided on the chamber wall of the main valve intake chamber channel 31; the main valve inlet valve seat 11 is arranged at the inlet end of the main valve cavity 32; the auxiliary valve air inlet passage 245 is communicated, the main valve core 21 is abutted against the main valve air inlet valve seat 11 under the elastic force of the main valve spring 23, so that the main valve cavity 32 is closed; the auxiliary valve air inlet passage 245 is closed, the main valve core 21 is far away from the main valve air inlet valve seat 11 under the action of air pressure in the main valve air inlet passage 31, and the main valve chamber passage 32 is communicated with the main valve air inlet passage 31.

As shown in fig. 1, 2 and 3, a main valve vent valve seat 12 is arranged on the inner wall of the vent valve cavity 7; the main valve vent valve seat 12 is at the end of the main valve chamber 32 remote from the main valve inlet chamber 31; the exhaust valve core 22 and the main valve core 21 synchronously act under the drive of the valve rod 8; the main valve core 21 is abutted against the main valve air inlet valve seat 11, and the exhaust valve core 22 is far away from the main valve air exhaust valve seat 12; the main valve core 21 is far away from the main valve air inlet valve seat 11, and the exhaust valve core 22 is pressed against the main valve air exhaust valve seat 12.

As shown in fig. 2 and 4, the sub valve housing 241 is provided with a sub valve discharge hole 13 communicating with a sub valve chamber 242; the width of the secondary spool 243 is smaller than the width of the secondary valve chamber 242.

As shown in fig. 1 and 2, the outer wall of the main valve spool 21 is provided with a seal ring 15, and the main valve spool 21 seals the main valve intake passage 31 from the main valve back pressure chamber 33 by the seal ring 15. The sealing ring 15 can seal and isolate the main valve air inlet cavity channel 31 from the main valve back pressure cavity 33, so that the air pressure control between two devices can be realized, and the mutual influence is avoided.

The working principle is briefly described as follows: in the initial state, the electromagnetic coil 25 is in a power-off state, high-pressure gas is introduced from the medium inlet 5 of the combined valve body 1, the high-pressure gas immediately enters the main valve inlet channel 31 in parallel, then the high-pressure gas enters the main valve back pressure cavity 33 from the main valve inlet channel 31 through the auxiliary valve inlet channel 245 and the auxiliary valve back pressure channel 244, the air pressure in the main valve back pressure cavity 33 is the same as the air pressure in the main valve inlet channel 31, the main valve core 21 is attached to the main valve inlet valve seat 11 to form a seal under the action of the high-pressure gas, the high-pressure gas is cut off from entering the main valve cavity channel 32, and the high-pressure gas is cut off from flowing out of the medium outlet 6;

when the electromagnetic coil 25 of any one or more auxiliary valve assemblies 24 in the independent air inlet valve structure 2 is electrified, the corresponding auxiliary valve core 243 moves towards the auxiliary valve air inlet valve seat 9 under the suction force of the electromagnetic coil 25 and is jointed with the auxiliary valve air inlet valve seat 9 to form a seal, high-pressure air is cut off from entering the auxiliary valve assemblies 24, meanwhile, high-pressure air of the corresponding main valve back pressure cavity 33 is discharged from the auxiliary valve air outlet hole 13 through the auxiliary valve back pressure channel 244, at the moment, the air pressure in the main valve air inlet cavity 31 is greater than the air pressure of the main valve back pressure cavity 33, the high-pressure air pushes the main valve core 21 to compress the main valve spring 23 to move downwards, the main valve core 21 is opened with the main valve air inlet valve seat 11, the exhaust valve core 22 moves downwards along with the main valve core 21 and is jointed with the main valve air outlet valve seat 12 to form a seal, the high-pressure air enters the main valve cavity 32 from the main valve air inlet cavity 31 and flows out of the medium outlet 6, when the corresponding air inlet valve structure 2 is required to be closed, the electromagnetic coil 25 is only required to be powered off, at the moment, the electromagnetic coil 25 rapidly loses the suction force to the auxiliary valve core 243, the auxiliary valve core 243 moves under the combined action of high-pressure air and the auxiliary valve spring 10, the auxiliary valve core 243 is separated from the auxiliary valve air inlet valve seat 9, the auxiliary valve core 243 is jointed with the auxiliary valve air outlet hole 13 to form sealing, high-pressure air enters the main valve back pressure cavity 33 from the main valve air inlet cavity channel 31 through the auxiliary valve air inlet channel 245 and the auxiliary valve back pressure channel 244, the main valve core 21 is in pressure balance in the combined valve body 1, at the moment, the air outlet valve core 22 moves upwards to be separated from the main valve air outlet valve seat 12 under the combined action of the high-pressure air pushing force and the main valve spring 23, the main valve core 21 moves upwards along with the air outlet valve core 22, the main valve core 21 forms sealing with the main valve air inlet valve seat 11, the high pressure gas in the main valve chamber 32 is discharged from the main valve vent 14 with the valve in an initial closed state.

The technical scheme has the following beneficial effects: the combined valve body is provided with a plurality of parallel air inlet valve installation cavities, so that the integrated modularization of a plurality of control electromagnetic valves with the same specification can be realized, the total volume of the electromagnetic valves is facilitated, the whole weight is reduced, the whole structure only needs one medium inlet, the use of pipelines on an engine is reduced, the risk of failure of the pipelines is reduced, the pipelines are greatly simplified, the occupied space is saved, more space is provided for other components of the engine layout, the structural optimization and the small-sized light design of the engine are facilitated, and the combined valve is high in applicability and good in practicability.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by "upper, lower, inner and outer", etc. in terms are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first, second, or third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The terms "mounted, connected, and coupled" should be construed broadly in this disclosure unless otherwise specifically indicated and defined, such as: can be fixed connection, detachable connection or integral connection; it may also be a mechanical connection, an electrical connection, or a direct connection, or may be indirectly connected through an intermediate medium, or may be a communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A modular combination valve structure, characterized by: comprises a combined valve body (1) and a plurality of air inlet valve structures (2);

a plurality of parallel air inlet valve mounting chambers (3) are arranged in the combined valve body (1);

adjacent air inlet valve installation chambers (3) are communicated through an air guide channel (4);

a medium inlet (5) communicated with the air inlet valve mounting cavity (3) is arranged on the side wall of the combined valve body (1);

the side wall of the combined valve body (1) is provided with medium outlets (6) the same as the air inlet valve mounting chambers (3), the medium outlets (6) are in one-to-one correspondence with the air inlet valve mounting chambers (3), and the medium outlets (6) are communicated with the air inlet valve mounting chambers (3);

the air inlet valve structure (2) is arranged in the air inlet valve mounting chamber (3).

2. A modular combination valve structure as defined in claim 1, wherein: the air inlet valve installation cavity (3) comprises a main valve air inlet cavity channel (31), a main valve cavity channel (32) and a main valve back pressure cavity (33) which are communicated and are positioned on the same straight line;

the main valve back pressure cavity (33) and the main valve cavity channel (32) are arranged at two ends of the main valve air inlet cavity channel (31);

the air guide channel (4) is arranged between the adjacent main valve air inlet channels (31);

the medium inlet (5) is communicated with one of the main valve air inlet channels (31);

the medium outlets (6) are in one-to-one correspondence with the main valve cavity passages (32), and the medium outlets (6) are communicated with the main valve cavity passages (32);

the inlet valve structure (2) is arranged in the main valve inlet air channel (31) and the main valve channel (32).

3. A modular combination valve structure as defined in claim 2, wherein: the air inlet valve structure (2) comprises a main valve core (21), an exhaust valve core (22), a main valve spring (23), an auxiliary valve assembly (24) and an electromagnetic coil (25);

an exhaust valve cavity (7) is arranged on the air inlet valve mounting cavity (3), and the exhaust valve cavity (7) is arranged at one end of the main valve cavity (32) far away from the main valve air inlet cavity (31);

the main valve core (21) is connected with the exhaust valve core (22) through a valve rod (8);

the main valve core (21) is positioned in the main valve air inlet cavity (31), the valve rod (8) is positioned in the main valve cavity (32) and the exhaust valve core (22) is positioned in the exhaust valve cavity (7);

the main valve spring (23) is arranged between the main valve core (21) and the end wall of the main valve back pressure cavity (33);

-said solenoid (25) is located within said secondary valve assembly (24);

the electromagnetic coil (25) controls the action of the main valve core (21) through the auxiliary valve assembly (24).

4. A modular combination valve structure as defined in claim 3, wherein: the auxiliary valve assembly (24) comprises an auxiliary valve housing (241) connected with the combined valve body (1), an auxiliary valve cavity (242) arranged in the auxiliary valve housing (241) and an auxiliary valve core (243) arranged in the auxiliary valve cavity (242);

a secondary valve back pressure channel (244) is arranged between the secondary valve chamber (242) and the primary valve back pressure chamber (33);

an auxiliary valve air inlet channel (245) is arranged between the auxiliary valve chamber (242) and the main valve air inlet channel (31);

the electromagnetic coil (25) is connected with the auxiliary valve core (243), the electromagnetic coil (25) controls the auxiliary valve assembly (24) to act so as to enable the auxiliary valve air inlet channel (245) to be connected with or disconnected from the auxiliary valve back pressure channel (244), and the air pressure of the main valve air inlet channel (31) and the main valve back pressure cavity (33) is changed and the main valve core (21) is caused to act.

5. A modular combination valve structure as defined in claim 4, wherein: an auxiliary valve air inlet valve seat (9) and an auxiliary valve spring (10) are arranged on the inner wall of the auxiliary valve chamber (242);

the auxiliary valve air inlet valve seat (9) is arranged at the end part of the auxiliary valve air inlet channel (245), the auxiliary valve spring (10) is arranged between the auxiliary valve core (243) and the inner wall of the auxiliary valve chamber (242), and the auxiliary valve spring (10) is sleeved outside the auxiliary valve air inlet valve seat (9);

the electromagnetic coil (25) is powered off, the auxiliary valve core (243) is far away from the auxiliary valve air inlet valve seat (9) under the action of the auxiliary valve spring (10), and the auxiliary valve air inlet channel (245) is communicated;

the electromagnetic coil (25) is electrified, the auxiliary valve core (243) is abutted against the auxiliary valve inlet valve seat (9), and the auxiliary valve inlet passage (245) is closed.

6. A modular combination valve structure as defined in claim 5, wherein: a main valve air inlet valve seat (11) is arranged on the cavity wall of the main valve air inlet cavity channel (31);

the main valve air inlet valve seat (11) is arranged at the air inlet end of the main valve cavity (32);

the auxiliary valve air inlet channel (245) is communicated, the main valve core (21) is abutted against the main valve air inlet valve seat (11) under the elastic force of the main valve spring (23), so that the main valve cavity channel (32) is closed;

the auxiliary valve air inlet channel (245) is closed, the main valve core (21) is far away from the main valve air inlet valve seat (11) under the action of air pressure in the main valve air inlet channel (31), and the main valve channel (32) is communicated with the main valve air inlet channel (31).

7. A modular combination valve structure as defined in claim 6, wherein: a main valve air discharge valve seat (12) is arranged on the inner wall of the air discharge valve cavity (7);

the main valve vent valve seat (12) is positioned at one end of the main valve cavity channel (32) far away from the main valve air inlet cavity channel (31);

the exhaust valve core (22) and the main valve core (21) synchronously act under the drive of the valve rod (8);

the main valve core (21) is abutted against the main valve air inlet valve seat (11), and the exhaust valve core (22) is far away from the main valve air outlet valve seat (12);

the main valve core (21) is far away from the main valve air inlet valve seat (11), and the exhaust valve core (22) is propped against the main valve air outlet valve seat (12).

8. A modular combination valve structure as claimed in any one of claims 4 to 7, wherein: a secondary valve exhaust hole (13) communicated with the secondary valve chamber (242) is arranged on the secondary valve housing (241);

the width of the secondary spool (243) is smaller than the width of the secondary valve chamber (242).

9. A modular combination valve structure as claimed in any one of claims 3 to 7, wherein: a main valve exhaust hole (14) is formed in the exhaust valve cavity (7); the width of the exhaust valve core (22) is smaller than the width of the exhaust valve cavity (7).

10. A modular combination valve structure as claimed in any one of claims 3 to 7, wherein: the outer wall of the main valve core (21) is provided with a sealing ring (15), and the main valve core (21) seals and isolates the main valve air inlet cavity (31) from the main valve back pressure cavity (33) through the sealing ring (15).