One-way valve structure and pressure increasing valve assembly adopting same

Abstract

The invention relates to the field of brake systems, in particular to a one-way valve structure and a pressure increasing valve assembly adopting the one-way valve structure, the one-way valve structure comprises a base and a connecting seat, the base comprises a base body, the base body is made of metal and can be subjected to heat treatment hardening treatment, and a first oil liquid channel mechanism is arranged on the base body; the first oil channel mechanism comprises a one-way valve hole, and a closing element is arranged in the one-way valve hole; the connecting seat comprises a seat body; the seat body comprises a seat body flange; according to the one-way valve structure disclosed by the invention, through the arrangement of the seat body flange, the closing element in the one-way valve structure can be supported and placed, so that the filter screen connected with the one-way valve structure does not participate in supporting the closing element, and then the problem that the filter screen is easily worn by the closing element is avoided; the base body can be subjected to heat treatment hardening treatment, abrasion resistance can be improved, abrasion to a one-way valve closing element is reduced, and the service life of the valve is prolonged to the maximum extent.

Description

Technical Field

[0001] The invention relates to the field of brake systems, in particular to a one-way valve structure and a booster valve assembly using the one-way valve structure. Background Art

[0002] The boost valve used in the ABS / ESC / brake-by-wire system of the braking system. During each braking action, the one-way valve closing element in the boost valve collides with the corresponding sealing cone surface, so there are certain requirements for the service life of the one-way valve structure.

[0003] The one-way valve structure mainly includes a closing element and a base (the base is similar to the base below); the base part of the one-way valve is currently set as a plastic injection molded part or a metal part.

[0004] For plastic parts, due to their elasticity, the sealing between the sealing cone and the steel ball of the one-way valve closing element is easier to ensure. However, the low wear resistance of plastic parts and the continuous collision of the steel ball with the sealing parts result in sealing failure after too frequent high-pressure braking.

[0005] Most of the metal parts used to set up the one-way valve are integrated with the valve base, which can reduce the number of parts. However, since the valve base requires the use of soft magnetic materials due to valve characteristics, heat treatment cannot be performed to increase the hardness, resulting in the inability to increase the durability of the one-way valve.

[0006] In actual use, due to too frequent braking times, the collision and wear between the steel ball and the sealing part of the plastic injection molded part may reduce the life of the valve.

[0007] For the one-way valve structural matrix made of metal, most of them are processed as an integral structure with the valve base. However, since the valve characteristics require the use of soft magnetic materials, the valve base cannot be heat-treated to increase the hardness, resulting in the inability to increase the durability of the one-way valve base.

[0008] At the same time; for the existing structure, the return support of the steel ball in the one-way valve needs to be provided by the flat filter at the bottom, so in actual use, the collision between the steel ball and the filter will cause wear of the filter, which increases the requirements for the strength and wear resistance of the filter material; inevitably increases the investment in component costs.

[0009] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing boost valve structure. Summary of the invention

[0010] The object of the present invention is to provide a one-way valve structure which can be applied to a pressure boosting valve and can increase the service life of the one-way valve.

[0011] In order to achieve the above object, the technical solution adopted by the present invention is:

[0012] A one-way valve structure for a boost valve assembly comprises a base and a connecting seat, wherein the connecting seat and the base are connected to a valve base in the boost valve assembly;

[0013] The base comprises a base body, and a first oil channel mechanism is provided on the base body;

[0014] The first oil channel mechanism comprises a one-way valve hole, in which a closing element is arranged; the seat body is provided with a second oil channel mechanism;

[0015] The connecting seat comprises a seat body; the seat body comprises a seat flange, and the seat flange is arranged opposite to the one-way valve hole.

[0016] The first oil channel mechanism also includes an assembly through hole and a through channel provided on the base body;

[0017] A through channel is provided on one side of the base body close to the valve base body, and a one-way valve hole is provided in the through channel;

[0018] The seat body also includes a shaft arranged on the seat body flange;

[0019] The second oil channel mechanism includes an oil passage provided on the seat body flange and an oil inlet passage provided on the seat body body; the oil inlet passage extends from the seat body flange to the shaft; the oil inlet passage runs through the seat body body;

[0020] The oil passage is connected to the through passage via a one-way valve hole;

[0021] The connecting seat is inserted into the assembly penetration hole of the base through the shaft rod.

[0022] The base body is provided with a plurality of one-way valve holes; each of the one-way valve holes and the assembly through-hole are parallel and spaced apart from each other; and the through-channel is arranged perpendicular to the assembly through-hole.

[0023] A mounting groove is provided on one side of the base body away from the valve base body, and the depth of the mounting groove is greater than the thickness of the base body flange.

[0024] The one-way valve hole is a frustum-shaped hole, and the one-way valve hole with a larger opening is arranged toward one side of the seat body flange.

[0025] A sealing ring is arranged on the shaft rod.

[0026] An embedding groove is provided on the base body; the embedding groove and the through-channel are arranged perpendicular to each other, and the inner diameter of the embedding groove is greater than the width of the through-channel.

[0027] The connecting seat is a plastic injection molded part; fiber material is added during the injection molding of the connecting seat; and the base is made of metal.

[0028] A boost valve assembly, comprising a boost valve body, wherein the boost valve body comprises a valve body assembly, and the check valve structure is arranged in the valve body assembly;

[0029] The valve body assembly includes a valve sleeve, a moving core, a valve base, a valve stem, a spring, a valve seat insert, a flat filter screen and a side filter screen;

[0030] The one-way valve structure includes a connecting seat, a base and a closing element;

[0031] The boost valve body is installed in the valve block; the connecting seat includes a shaft section, a shaft end and a seat body flange;

[0032] A filter screen is provided between the valve block and the booster valve body; the filter screen is arranged on the side of the seat body away from the base body;

[0033] The seat flange is provided with oil passages, the seat flange independently supports the closing element, and the flat filter is arranged at the lower part of the seat flange; the base is made of metal; the base includes a base body, on which is provided a through passage which is recessed in the end face of the base and extends laterally through the outer circular face of the base, and the through passage enables at least one one-way valve hole to communicate with the valve block channel.

[0034] The valve base and the base in the one-way valve structure are designed in a split type.

[0035] The advantages of the present invention are:

[0036] The invention discloses a one-way valve structure and a booster valve assembly having the one-way valve structure.

[0037] The one-way valve structure disclosed in the present invention can realize the supporting and placement of the closing element in the one-way valve structure through the setting of the seat body flange, so that the filter screen connected to the one-way valve structure does not participate in the support of the closing element, thereby avoiding the problem that the filter screen in the one-way valve structure is easily worn by the closing element (one-way valve ball valve) when the traditional booster valve assembly is used.

[0038] At the same time, the boost valve assembly disclosed in the present invention can increase the service life of the filter screen by setting the above-mentioned one-way valve structure. Since the filter screen will not be worn by the closing element, the requirements for the filter screen material can be reduced in actual production, thereby reducing the actual production cost to a certain extent.

[0039] At the same time, the valve base and the base of the boost valve assembly disclosed in the present invention adopt a split design. In actual use, the base can be hardened by heat treatment to improve the wear resistance of its sealing cone surface and increase the service life of the one-way valve.

[0040] At the same time, the connecting seat is made of plastic injection molding, and by adding fiber material, the strength and wear resistance of the connecting seat are increased to a certain extent, which better reduces the collision and wear between the closing element and the connecting seat; and the service life of the valve body assembly is increased to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0042] Figure 1 It is a structural schematic diagram of the present invention.

[0043] Figure 2 It is a structural schematic diagram of the base in the present invention.

[0044] Figure 3 It is a structural schematic diagram of the connecting seat in the present invention.

[0045] The marks in the above figure are:

[0046] 1. Valve sleeve, 2. Moving core, 3. Valve base, 4. Valve stem, 5. Spring, 6. Valve seat insert, 7. Connecting seat, 8. Base, 9. Closing element, 10. Flat filter, 11. Side filter. DETAILED DESCRIPTION

[0047] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0048] A one-way valve structure for a boost valve assembly comprises a base 8 and a connecting seat 7, wherein the connecting seat 7 and the base 8 are connected to a valve base 3 in the boost valve assembly; the base 8 comprises a base body 8-1, wherein the base body 8-1 is provided with a first oil channel mechanism; the first oil channel mechanism comprises a one-way valve hole 8-4, wherein a closing element 9 is provided in the one-way valve hole 8-4; the connecting seat 7 comprises a seat body 701; a second oil channel mechanism is provided on the seat body 701; the seat body 701 comprises a seat body flange 7-3, wherein the seat body flange 7-3 is arranged opposite to the one-way valve hole 8-4; the one-way valve structure disclosed in the present invention can realize the supporting placement of the closing element 9 in the one-way valve structure through the arrangement of the seat body flange 7-3, so that the filter screen connected to the one-way valve structure does not participate in the support of the closing element 9, thereby avoiding the problem that the filter screen in the one-way valve structure is easily worn by the closing element 9 (one-way valve ball valve) when the conventional boost valve assembly is used.

[0049] The one-way valve structure disclosed in the present invention is mainly suitable for use in a booster valve assembly and is used to control the flow direction of brake oil.

[0050] Specifically, the one-way valve structure disclosed in the present invention mainly includes a base 8 and a connecting seat 7, and the connecting seat 7 and the base 8 are connected to the valve base 3 in the boosting valve assembly; in actual use, the base 8 and the middle valve base 3 of the boosting valve assembly are relatively fitted and distributed; the shaft rod 702 on the connecting seat 7 passes through the base 8 and is connected to a valve seat insert 6, and the valve seat insert 6 is sleeved on the shaft rod 702, and the connecting seat 7 is connected to the end of the valve base 3 through the valve seat insert 6; as shown in the accompanying drawings.

[0051] In addition, the base 8 described in the present invention includes a base body 8-1, which is the main bearing mechanism of the base 8, and also facilitates the coordinated use of the one-way valve structure with the valve base 3 and other components. In addition, a first oil channel mechanism is provided on the base body 8-1; the first oil channel mechanism is mainly used for the flow of brake oil, and in subsequent use, it is mainly used to cooperate with the second oil channel mechanism on the connecting seat 7 to realize the control of the flow direction of brake oil; in addition, the first oil channel mechanism in the present invention includes a one-way valve hole 8-4, and the one-way valve hole 8-4 is mainly used to communicate with the valve block channel 12-1 on the valve block; and in the present invention, a closing element 9 is provided in the one-way valve hole 8-4; the closing element 9 is mainly used to control the on and off of the one-way valve hole 8-4, and in actual use, the closing element 9 is mainly a one-way valve steel ball; it can be referred to as a valve body steel ball, a one-way valve ball or a closing valve ball, etc.; and in the present invention, the connecting seat 7 includes a seat body 701; the seat body 701 is mainly for matching The base 8 is used together, and a one-way valve structure is formed by the cooperation of the base 8 and the connecting seat 7. In the present invention, a second oil channel mechanism is provided on the seat body 701; the setting of the second oil channel mechanism is also used to control the direction of the flow of brake oil and realize the normal use of the booster valve; in addition; in the present invention, the connecting seat 7 includes a seat body 701; the seat body 701 plays a basic supporting role, which facilitates the arrangement and placement of the base 8 in the booster valve assembly; in addition, in the present invention, the seat body 701 includes a seat body flange 7-3, and the seat body flange 7-3 is arranged opposite to the one-way valve hole 8-4; the present invention is through the setting of the seat body flange 7-3; and by limiting the position of the seat body flange 7-3, the closing element 9 can be supported in subsequent use. The seat body flange 7-3 of the present invention plays an isolation role. Such a design can avoid rigid collision between the closing element 9 and the filter screen in actual use; thereby reducing or avoiding damage to the filter screen by the closing element 9, thereby extending the service life of the filter screen.

[0052] Furthermore, in the present invention, the first oil channel mechanism also includes an assembly through hole 8-5 and a through channel 8-3 arranged on the base body 8-1; the setting of the assembly through hole 8-5 here plays an assembly limit role, which facilitates the plug-in and fixation of the connecting seat 7 on the base 8, and in subsequent use, it can cooperate with the shaft rod 702 on the connecting seat 7 to achieve the connection limit between the connecting seat 7 and the sealing effect between the two; in addition, the setting of the through channel plays a role of lateral connection, which facilitates the connection between the one-way valve hole 8-4 and the valve block through hole in subsequent use, and finally facilitates the reflux and pressure relief of the brake oil.

[0053] In a specific implementation, a through channel 8-3 is provided on the side of the base body 8-1 close to the valve base 3, and a one-way valve hole 8-4 is provided in the through channel 8-3; the through channel 8-3 enables the base body 8-1 to have a sink groove on the side close to the valve base, which facilitates the subsequent flow of brake oil through the base body 8-1. At the same time, the setting of the one-way valve hole 8-4 facilitates the reflux of the brake oil during subsequent use.

[0054] In addition, the seat body 701 described in the present invention also includes an axis rod 702 arranged on the seat body flange 7-3; the setting of the axis rod 702 forms a protruding structure on the connecting seat 7, which plays a good plug-in limiting role and realizes a sealing effect between the two during subsequent use, making it convenient for the connecting seat 7 to be plugged and fixed on the base 8.

[0055] And in the present invention, the second oil channel mechanism includes an oil passage 7-4 arranged on the seat body flange 7-3 and an oil inlet channel arranged on the seat body 701; in the present invention, the oil passage 7-4 plays a good connecting role; it is convenient for the brake oil to pass through the connecting seat 7; and the setting of the oil inlet channel is mainly used to connect the brake master cylinder; in the specific implementation, the oil inlet channel extends from the seat body flange 7-3 to the shaft 702; the oil inlet channel is set through the seat body 701; that is, in the present invention, the oil inlet channel is set at the center of the connecting seat 7, which is convenient for the subsequent brake oil to flow back and forth in the oil inlet channel and the channel on the valve base 3.

[0056] In addition, in the present invention, the oil passage 7-4 is connected to the through passage 8-3 via a one-way valve hole 8-4; such a setting facilitates the connection between the connecting seat 7 and the base 8, and can be used to connect with the valve block channel 12-1 during subsequent arrangement; it facilitates the pressure relief and reflux of the brake oil.

[0057] At the same time, in the present invention, the connecting seat 7 is inserted into the assembly through hole 8-5 of the base 8 through the shaft rod 702; the present invention facilitates the assembly positioning between the connecting seat 7 and the base 8 and realizes the sealing effect between the two through the setting of the shaft rod 702.

[0058] Furthermore, in the present invention, a plurality of one-way valve holes 8-4 are provided on the base body 8-1; each of the one-way valve holes 8-4 and the assembly through hole 8-5 are spaced and parallel to each other; in the present invention, a plurality of one-way valve holes are provided, because each one-way valve hole is equivalent to a connecting channel, such a setting facilitates the rapid pressure relief of the one-way valve structure during subsequent use; that is, the pressure relief efficiency of the wheel cylinder is improved; at the same time, in the present invention, the through channel 8-3 is arranged perpendicular to the assembly through hole 8-5; and the through channel 8-3 is arranged transversely through the base body 8-1, such a setting enables the base body 8-1 to have openings on both sides, which facilitates the subsequent brake oil to have multiple flow directions; and improves the sensitivity of the boost valve during subsequent use.

[0059] Furthermore, in the present invention, the base body 8-1 is provided with an assembly groove on the side away from the valve base 3, and the depth of the assembly groove is greater than the thickness of the seat flange 7-3; the setting of the assembly groove enables the base body 8-1 to have a groove structure at the bottom, and this groove is used to accommodate the seat flange, and is interference connected with the outer cylinder of the flat filter, so that the one-way valve can become a compact modular unit.

[0060] Furthermore, in the present invention, the one-way valve hole 8-4 is a frustum-shaped hole, and the one-way valve hole 8-4 with a larger opening is arranged toward the side of the seat flange 7-3.

[0061] Furthermore, in the present invention, a sealing ring is provided on the shaft rod 702; the sealing ring plays a good protective role, and well ensures the stability and tightness of the connection between the shaft rod 702 and the assembly through hole 8-5, thereby achieving a sealing effect.

[0062] In addition, in the present invention, the shaft rod 702 includes a shaft end 7-2 and a shaft segment 7-1; the shaft end 7-2 is connected to the seat body flange 7-3 through the shaft segment 7-1, and a circular chamfer is provided at the end of the shaft end 7-2; such a setting facilitates the threading and assembly of the shaft rod 702 on the base 8.

[0063] Furthermore, in the present invention, an embedding groove is provided on the base body 8-1; the embedding groove and the through channel 8-3 are arranged perpendicular to each other. The embedding groove in the present invention is arranged to accommodate part of the base of the valve seat insert 6, which is beneficial to reducing the axial length of the valve.

[0064] Furthermore, the connecting seat 7 in the present invention is a plastic injection molded part; that is, the main body of the connecting seat 7 of the present invention is a plastic part. The connecting seat 7 of the present invention adopts a plastic part, which can reduce the production cost of the connecting seat 7. At the same time, fiber material is added during injection molding of the connecting seat 7; the fiber material can be added with reinforcing fibers such as carbon fiber and other materials. Based on such a design, the present invention can improve the strength and wear resistance of the connecting seat 7, reduce the collision and wear with the one-way valve closing element 9, and increase the service life of the valve body assembly.

[0065] In addition, the base 8 described in the present invention is made of metal; the base 8 disclosed in the present invention can be subjected to heat treatment and hardening treatment to improve wear resistance, reduce wear with the one-way valve closing element 9, and maximize the life of the valve body.

[0066] A boost valve assembly includes a boost valve body, the boost valve body includes a valve body assembly, the valve body assembly is provided with the one-way valve structure, and the boost valve body is mounted on a valve block; the boost valve assembly disclosed in the present invention can increase the service life of the filter screen by setting the one-way valve structure, because the filter screen will not be worn by the closing element 9, so in actual production, the requirements for the material of the filter screen can be reduced, thereby reducing the actual production cost to a certain extent.

[0067] In the present invention, the valve body assembly includes a valve sleeve, a moving core, a valve base, a valve stem, a spring, a valve seat insert, a flat filter and a side filter; the one-way valve structure includes a connecting seat, a base and a closing element; the boost valve body is installed in the valve block; the connecting seat includes an axis section, an axis end and a seat body flange; a filter is provided between the valve block and the boost valve body; the filter is arranged on the side of the seat body away from the base body; oil passages are distributed on the seat body flange, the seat body flange independently supports the closing element, and the flat filter is arranged at the lower part of the seat body flange; the base is made of metal; the base includes a base body, and a through channel is provided on the base body, which is recessed in the end face of the base and extends laterally through the outer circular surface 8-2 of the base, and the through channel enables at least one one-way valve hole to be connected to the valve block channel.

[0068] In actual use, the base 8 and the middle valve base 3 of the boost valve assembly are relatively fitted and distributed; the shaft rod 702 on the connecting seat 7 passes through the base 8 and is connected to the valve seat insert 6, the valve seat insert 6 is sleeved on the shaft rod 702, and the connecting seat 7 is connected to the end of the valve base 3 through the valve seat insert 6; at the same time, a mounting groove is provided on the valve block, and the boost valve body of the present invention is embedded in the mounting groove on the valve block; the filter screen is arranged on the side of the seat body 701 away from the base body 8-1; as shown in the attached drawings.

[0069] The present invention is based on the above-mentioned design, so that the filter screen does not come into contact with the closing element 9 during actual use; specifically, the seat body 701 is located in the area between the filter screen and the one-way valve hole; here, the seat body 701 plays a good isolation role, thereby avoiding a rigid collision between the closing element 9 and the filter screen during actual use; thereby avoiding the movement of the closing element 9 from causing a rigid collision with the filter screen, thereby reducing or avoiding damage to the filter screen by the closing element 9, and then extending the service life of the filter screen.

[0070] In addition, in the present invention, the filter screen is mainly a flat filter screen 10 .

[0071] Furthermore, the valve body assembly in the present invention also includes a valve base 3, and the valve base 3 and the base 8 in the one-way valve structure adopt a split design; the valve base 3 and the base 8 in the booster valve assembly disclosed in the present invention adopt a split design, and the lower end of the valve base 3 is in contact with the upper end of the base 8 during actual arrangement. With such an arrangement, during actual use, the base 8 can be hardened by heat treatment to improve its wear resistance and increase the service life of the valve body; avoiding the problem that the traditional valve base 3 needs to use soft magnetic materials due to the valve characteristics requirements and cannot be heat treated to increase the hardness (the traditional valve base 3 is equivalent to the valve base 3 and the base 8 disclosed in the present invention). Specific embodiment:

[0073] The boost valve assembly disclosed in the present invention mainly includes a boost valve body and a one-way valve structure; in the present invention, the boost valve body includes a valve sleeve 1, a moving core 2, a valve base 3, a valve stem 4, a spring 5, a valve seat insert 6, a flat filter 10, and a side filter 11; at the same time, an electromagnetic valve coil 13 is provided on the outside of the moving core; at the same time, in the present invention, the one-way valve structure mainly includes a connecting seat 7, a base 8, and a one-way valve closing element 9.

[0074] In the present invention, the boost valve body is installed in the valve block 12; the connecting seat 7 includes a shaft section 7-1, a shaft end 7-2, and a seat body flange 7-3.

[0075] During the specific connection, a moving core 2 is arranged in the valve sleeve 1, a valve stem 4 is connected to the bottom of the moving core 2, a valve base 3 with an inner hole is arranged on the outside of the valve stem 4, and the valve stem 4 is located in the inner hole of the valve base 3; a valve seat insert 6 is arranged at the bottom of the valve stem 4, a base 8 is arranged at the bottom of the valve seat insert 6, a valve ball is arranged in the base 8, and a connecting seat 7 is connected to the base 8; a flat filter 10 is arranged below the connecting seat 7; at the same time, in the present invention, the connecting seat 7 includes the connecting seat 7 including the seat body 701; the seat body 701 includes a seat body flange 7-3, and the seat body flange 7-3 is arranged opposite to the one-way valve hole 8-4; at the same time, an oil passage 7-4 is distributed on the seat body flange 7-3, the seat body flange 7-3 independently supports the one-way valve closing element 9, and the flat filter 10 is arranged at the lower part of the seat body flange 7-3; the base 8 is made of metal; a through channel 8-3 is provided on the seat body 701, and the through channel 8-3 enables at least one one-way valve hole 8-4 to communicate with the valve block channel 12-1.

[0076] The base 8 of the present invention is a metal part and is separated from the valve base 3 as a separate component. The material can be heat-treated and hardened to improve wear resistance, reduce wear with the steel ball, and increase valve life.

[0077] At the same time, the seat flange 7-3 of the present invention is relatively large in size, so that it is located below the one-way valve hole. This arrangement allows the seat flange 7-3 to independently support the one-way valve steel ball when the boost valve is actually used, and the flat filter screen 10 does not participate in supporting the steel ball, thereby reducing the material strength and wear resistance requirements of the flat filter screen and reducing the manufacturing cost.

[0078] In addition, in the present invention, the connecting seat 7 is a plastic injection molded part; and reinforcing fibers such as carbon fibers can be added to the plastic material of the connecting seat 7 to improve strength and wear resistance, reduce collision wear with the one-way valve closing element 9, and improve valve life; and, in the present invention, the plastic material of the plane filter 10 can be made of a material that is more common than the connecting seat 7; and the base 8 disclosed in the present invention can be heat-treated and hardened to improve wear resistance, reduce wear with the one-way valve closing element 9, and maximize valve life.

[0079] In summary, it can be known that the booster valve disclosed in the present invention has the following advantages:

[0080] The structural base provided with the one-way valve is a metal part and is separated from the valve base 3 as a separate component. The material can be heat-treated and hardened to improve wear resistance, reduce wear with the steel ball, and maximize the life of the valve.

[0081] By setting the seat flange 7-3, the one-way valve steel ball can be supported independently in subsequent use, and the flat filter screen 10 does not participate in supporting the steel ball, which reduces the material requirements for the flat filter screen and reduces the manufacturing cost.

[0082] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A one-way valve structure for a boost valve assembly, It is characterized in that It includes a base and a connecting seat, wherein the connecting seat and the base are connected to a valve base in a boost valve assembly; The base comprises a base body, and a first oil channel mechanism is provided on the base body; The first oil channel mechanism comprises a one-way valve hole, and a closing element is arranged in the one-way valve hole; The connecting seat comprises a seat body; a second oil channel mechanism is provided on the seat body; The seat body includes a seat body flange, and the seat body flange is arranged opposite to the one-way valve hole.

2. A one-way valve structure for a boost valve assembly according to claim 1, It is characterized in that The first oil channel mechanism also includes an assembly through hole and a through channel provided on the base body; A through channel is provided on one side of the base body close to the valve base body, and a one-way valve hole is provided in the through channel; The seat body also includes a shaft arranged on the seat body flange; The second oil channel mechanism includes an oil passage provided on the seat body flange and an oil inlet passage provided on the seat body body; the oil inlet passage extends from the seat body flange to the shaft; the oil inlet passage runs through the seat body body; The oil passage is connected to the through passage via a one-way valve hole; The connecting seat is inserted into the assembly penetration hole of the base through the shaft rod.

3. A one-way valve structure for a boost valve assembly according to claim 2, It is characterized in that The base body is provided with a plurality of one-way valve holes; each of the one-way valve holes and the assembly through-hole are parallel and spaced apart from each other; and the through-channel is arranged perpendicular to the assembly through-hole.

4. A one-way valve structure for a boost valve assembly according to any one of claims 1 to 3, It is characterized in that A mounting groove is provided on one side of the base body away from the valve base body, and the depth of the mounting groove is greater than the thickness of the base body flange.

5. A one-way valve structure for a boost valve assembly according to any one of claims 2 to 3, It is characterized in that The one-way valve hole is a frustum-shaped hole, and the one-way valve hole with a larger opening is arranged toward one side of the seat body flange.

6. A one-way valve structure for a boost valve assembly according to any one of claims 2 to 3, It is characterized in that A sealing ring is arranged on the shaft rod.

7. A one-way valve structure for a boost valve assembly according to any one of claims 2 to 3, It is characterized in that An embedding groove is provided on the base body; the embedding groove and the through-channel are arranged perpendicular to each other, and the inner diameter of the embedding groove is greater than the width of the through-channel.

8. A one-way valve structure for a boost valve assembly according to claim 1, It is characterized in that The connecting seat is a plastic injection molded part; fiber material is added during the injection molding of the connecting seat; the base is made of metal; and the base can be hardened by heat treatment.

9. A boost valve assembly, It is characterized in that It comprises a booster valve body, the booster valve body comprises a valve body assembly, and the valve body assembly is provided with a one-way valve structure as claimed in any one of claims 1 to 7; The valve body assembly includes a valve sleeve, a moving core, a valve base, a valve stem, a spring, a valve seat insert, a flat filter screen and a side filter screen; The one-way valve structure includes a connecting seat, a base and a closing element; The boost valve body is installed in the valve block; the connecting seat includes a shaft section, a shaft end and a seat body flange; A filter screen is provided between the valve block and the booster valve body; the filter screen is arranged on the side of the seat body away from the base body; The seat flange is provided with oil passages, the seat flange independently supports the closing element, and the flat filter is arranged at the lower part of the seat flange; the base is made of metal; the base includes a base body, on which is provided a through passage which is recessed in the end face of the base and extends laterally through the outer circular face of the base, and the through passage enables at least one one-way valve hole to communicate with the valve block channel.

10. A boost valve assembly according to claim 9, It is characterized in that It is characterized in that The valve base and the base in the one-way valve structure are designed in a split type.

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