A valve body structure

Abstract

This invention discloses a valve body structure, relating to the field of hydraulic valve technology. The valve body structure includes a valve sleeve, a valve seat, and a retaining ring. The inner wall of the valve sleeve is provided with a first limiting groove, and the side wall of the valve sleeve is provided with an adjusting groove communicating with the first limiting groove and extending to one end of the valve sleeve. The outer wall of the valve seat is provided with a second limiting groove. The retaining ring includes a limiting ring and two driving arms. The two driving arms can slide within the adjusting groove. When the two driving arms abut, the retaining ring is in a first state, and the outer diameter of the retaining ring is smaller than the inner diameter of the connecting channel. When the two driving arms abut against the adjusting groove respectively, the retaining ring is in a second state, and the retaining ring can simultaneously engage with the first and second limiting grooves, with both driving arms positioned within the adjusting groove. This valve body structure allows for the assembly and disassembly of the valve seat and valve sleeve via the two driving arms of the retaining ring, effectively solving the problems of difficult assembly and inability to disassemble the retaining ring, thus facilitating maintenance of the valve body structure.

Description

Technical Field

[0001] This invention relates to the field of hydraulic valve technology, and more particularly to a valve body structure. Background Technology

[0002] The valve body structure of a hydraulic valve is generally assembled axially, and the axial restraint between its components is achieved by retaining rings. For example, when assembling the valve seat and the valve sleeve, the valve seat needs to be placed inside the valve sleeve first, and then a retaining ring is placed at one end of the assembly so that the retaining ring is engaged with the limiting groove inside the valve sleeve, thereby preventing the valve seat from coming out of the valve sleeve.

[0003] However, in some valve body structures, the valve seat is not completely located inside the valve sleeve. This requires a retaining ring to be placed between the valve seat and the valve sleeve and to engage with both the valve seat and the valve sleeve. This makes assembly difficult, disassembly inconvenient, and maintenance of the valve body structure difficult. Summary of the Invention

[0004] The purpose of this invention is to propose a valve body structure that allows for the assembly and disassembly of the valve seat and valve sleeve via the two drive arms of the retaining ring, effectively solving the problems of difficult assembly and inability to disassemble the retaining ring, and facilitating the maintenance of the valve body structure.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A valve body structure, comprising:

[0007] A valve sleeve includes a connecting channel, the inner wall of which is provided with a first limiting groove, and the side wall of the valve sleeve is provided with an adjusting groove, which communicates with the first limiting groove and extends to one end of the valve sleeve.

[0008] A valve seat, the outer wall of which is provided with a second limiting groove, and the valve seat can be partially disposed within the connecting channel;

[0009] The retaining ring includes a limiting ring with an opening and two driving arms disposed at both ends of the limiting ring. The two driving arms can slide within the adjusting groove. When the two driving arms abut against each other, the retaining ring is in a first state, and the outer diameter of the retaining ring is smaller than the inner diameter of the connecting channel. When the two driving arms abut against the adjusting groove respectively, the retaining ring is in a second state, and the retaining ring can simultaneously engage with the first limiting groove and the second limiting groove, and the two driving arms are located within the adjusting groove.

[0010] As an optional embodiment of the above valve body structure, the adjusting groove includes a connected sliding groove and a limiting groove. The limiting groove is connected to the first limiting slot. The sliding groove extends to one end of the valve sleeve and is along the circumference of the valve sleeve. The size of the limiting groove is larger than the size of the sliding groove.

[0011] As an optional embodiment of the valve body structure, when the retaining ring is in the second state, the two drive arms respectively abut against the opposite sides of the limiting groove along the circumference of the valve sleeve.

[0012] As an alternative to the above valve body structure, along the axial direction of the valve sleeve, the size of the first limiting groove is equal to the thickness of the retaining ring; and / or

[0013] Along the axial direction of the valve sleeve, the size of the second limiting groove is equal to the thickness of the retaining ring.

[0014] As an alternative to the above valve body structure, the cross-section of the retaining ring is rectangular.

[0015] As an optional embodiment of the above valve body structure, when the retaining ring is in the first state, the outer diameter of the limiting ring is less than or equal to the inner diameter of the connecting channel.

[0016] As an optional embodiment of the above valve body structure, when the retaining ring is in the first state, the limiting ring can be completely submerged in the second limiting groove; and / or

[0017] When the retaining ring is in the second state, the limiting ring portion can partially protrude from the first limiting slot.

[0018] As an alternative to the above valve body structure, the depth of the first limiting groove is less than the depth of the second limiting groove.

[0019] As an alternative to the above valve body structure, the length of the drive arm is greater than the wall thickness of the valve sleeve.

[0020] As an optional embodiment of the above-mentioned valve body structure, the two drive arms are both located in the plane of the limiting ring.

[0021] The beneficial effects of this invention are:

[0022] This invention provides a valve body structure. In this structure, the inner and outer diameters of the retaining ring can be changed by adjusting the gap between the two drive arms. The valve sleeve is designed with an adjustment groove for the drive arms of the retaining ring to pass through. This allows the valve body structure to be assembled by first fitting the retaining ring onto the valve seat in a first state, then inserting the valve seat into the valve sleeve. At this point, the drive arms of the retaining ring slide within the adjustment groove. Then, the retaining ring is moved to a second state, ensuring that it simultaneously engages with both the first and second limiting grooves, thus axially limiting and fixing the valve seat and valve sleeve. When disassembly is required, simply reduce the gap between the two drive arms to disengage the retaining ring from the first limiting groove, allowing the valve seat to be removed from the valve sleeve.

[0023] This valve body structure allows for the assembly and disassembly of the valve seat and valve sleeve via the two drive arms of the retaining ring, effectively solving the problems of difficult assembly and inability to disassemble the retaining ring, and facilitating the maintenance of the valve body structure. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the valve body structure provided by the present invention;

[0025] Figure 2 This is a cross-sectional view of the valve body structure provided by the present invention;

[0026] Figure 3 This is a schematic diagram of the valve sleeve provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the valve seat provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the retaining ring provided by the present invention.

[0029] In the picture:

[0030] 1. Valve sleeve; 11. Connecting channel; 12. First limit groove; 13. Adjusting groove; 131. Slide groove; 132. Limit groove;

[0031] 2. Valve seat; 21. Second limit slot;

[0032] 3. Retaining ring; 31. Limiting ring; 32. Drive arm;

[0033] 4. Valve core. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0036] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0037] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] This embodiment provides a valve body structure, such as Figure 1 and Figure 2 As shown, the valve body structure includes a valve sleeve 1 and a valve seat 2. The valve sleeve 1 includes a connecting channel 11 and an inlet and an outlet connected to the connecting channel 11. The valve seat 2 can be partially disposed within the connecting channel 11. A valve core 4 is also disposed within the valve sleeve 1. By adjusting the distance between the valve core 4 and the valve seat 2, the opening and closing of the inlet and outlet and the flow rate when connected can be controlled.

[0040] like Figures 3-5 As shown, in order to fix the valve sleeve 1 and the valve seat 2, the valve body structure also includes a retaining ring 3. The inner wall of the connecting channel 11 is provided with a first limiting groove 12. The side wall of the valve sleeve 1 is provided with an adjusting groove 13, which communicates with the first limiting groove 12 and extends to one end of the valve sleeve 1. The outer wall of the valve seat 2 is provided with a second limiting groove 21. The retaining ring 3 includes a limiting ring 31 with an opening and two driving arms 32 at both ends of the limiting ring 31. The two driving arms 32 can slide in the adjusting groove 13. When the two driving arms 32 abut, the retaining ring 3 is in the first state. The outer diameter of the retaining ring 3 is smaller than the inner diameter of the connecting channel 11. When the two driving arms 32 abut against the adjusting groove 13 respectively, the retaining ring 3 is in the second state. The retaining ring 3 can simultaneously be inserted into the first limiting groove 12 and the second limiting groove 21, and the two driving arms 32 are in the adjusting groove 13.

[0041] In this valve body structure, the inner and outer diameters of the retaining ring 3 can be changed by adjusting the gap between the two drive arms 32. The valve sleeve 1 is designed with an adjustment groove 13 for the drive arms 32 of the retaining ring 3 to pass through. This allows the retaining ring 3 to be fitted onto the valve seat 2 in a first state during valve body assembly, followed by the insertion of the valve seat 2 into the valve sleeve 1. At this point, the drive arms 32 of the retaining ring 3 slide within the adjustment groove 13. Then, the retaining ring 3 is positioned in a second state, ensuring that it simultaneously engages with the first limiting groove 12 and the second limiting groove 21, thus axially limiting the valve seat 2 and the valve sleeve 1 for fixation. When disassembly is required, simply reduce the gap between the two drive arms 32, causing the retaining ring 3 to exit the first limiting groove 12, allowing the valve seat 2 to be removed from the valve sleeve 1.

[0042] The valve body structure allows for the assembly and disassembly of the valve seat 2 and valve sleeve 1 via the two drive arms 32 of the retaining ring 3, effectively solving the problems of difficult assembly and inability to disassemble the retaining ring 3, and facilitating the maintenance of the valve body structure.

[0043] like Figure 1 and Figure 3 As shown, the adjusting groove 13 includes a connected sliding groove 131 and a limiting groove 132. The limiting groove 132 is connected to the first limiting slot 12. The sliding groove 131 extends to one end of the valve sleeve 1 and is along the circumference of the valve sleeve 1. The size of the limiting groove 132 is larger than the size of the sliding groove 131.

[0044] When the limiting ring 31 of the retaining ring 3 enters the first limiting groove 12, the two driving arms 32 enter the limiting groove 132 and the distance between them increases. At this time, the retaining ring 3 changes from the first state to the second state to clamp the valve sleeve 1 and the valve seat 2. At the same time, the limiting groove 132 can also limit the retaining ring 3 through the two driving arms 32 to ensure that the retaining ring 3 will not come out of the first limiting groove 12, thereby improving the reliability of the retaining ring 3 in axially limiting the valve sleeve 1 and the valve seat 2.

[0045] Furthermore, when the retaining ring 3 is in the second state, the two drive arms 32 respectively abut against the opposite sides of the limiting groove 132 along the circumference of the valve sleeve 1. That is, when the limiting ring 31 of the retaining ring 3 is installed into the first limiting groove 12 and the two drive arms 32 are released, the distance between the two drive arms 32 increases under the action of the elasticity of the retaining ring 3 itself. When the two drive arms 32 are restricted by the inner wall of the adjusting groove 13, the retaining ring 3 is in the second state. At this time, the size of the limiting ring 31 remains unchanged, which can both allow the limiting ring 31 to simultaneously engage with the first limiting groove 12 and the second limiting groove 21, and also allow the two drive arms 32 to keep the retaining ring 3 stable and prevent the retaining ring 3 from rotating.

[0046] In order to ensure that the retaining ring 3 can be smoothly installed into the connecting channel 11 and locked into the first limiting slot 12, when the retaining ring 3 is in the first state, the outer diameter of the limiting ring 31 is less than or equal to the inner diameter of the connecting channel 11. At this time, the retaining ring 3 can be installed into the connecting channel 11 in a coaxial posture with the connecting channel 11, and then the two drive arms 32 can be released.

[0047] In this embodiment, when the retaining ring 3 is in the first state, the limiting ring 31 can be completely submerged in the second limiting groove 21. That is, during assembly, the retaining ring 3 can be first fitted onto the valve seat 2 and the limiting ring 31 can be engaged in the second limiting groove 21. Then, the two driving arms 32 of the retaining ring 3 are brought into contact. Since the limiting ring 31 can be completely submerged in the second limiting groove 21 at this time, the retaining ring 3 can be installed into the valve sleeve 1 along with the valve seat 2. At this time, the two driving arms 32 enter the adjusting groove 13. After the valve seat 2 and the valve sleeve 1 are assembled in place, the two driving arms 32 can be released, which reduces the assembly difficulty.

[0048] In this embodiment, when the retaining ring 3 is in the second state, the limiting ring 31 can partially protrude from the first limiting groove 12. At this time, the limiting ring 31 is partially located in the first limiting groove 12 and partially located in the second limiting groove 21, thereby achieving axial limiting of the valve sleeve 1 and the valve seat 2.

[0049] In other words, when the two drive arms 32 are in the adjustment groove 13, the inner diameter of the limiting ring 31 is smaller than the inner diameter of the connecting channel 11, and the outer diameter of the limiting ring 31 is larger than the inner diameter of the connecting channel 11.

[0050] In this embodiment, when the retaining ring 3 is in the second state, the outer periphery of the retaining ring 3 abuts against the inner surface of the first limiting groove 12 in the circumferential direction. That is, when the retaining ring 3 is in the second state, the outer diameter of the retaining ring 3 is equal to the inner diameter of the first limiting groove 12. At this time, the retaining ring 3 is abutted and limited by the second limiting groove 21 in the radial direction, which can further improve the stability of the retaining ring 3 in the first limiting groove 12.

[0051] It is worth noting that, since the retaining ring 3 can be completely submerged in the second limiting groove 21, and the retaining ring 3 will remain partially protruding from the first limiting groove 12 when it abuts against the inner surface of the first limiting groove 12, the depth of the first limiting groove 12 is less than the depth of the second limiting groove 21.

[0052] To further improve the stability between the retaining ring 3 and the valve sleeve 1, the size of the first limiting groove 12 along the axial direction of the valve sleeve 1 is equal to the thickness of the retaining ring 3. This structure ensures that there will be no relative axial displacement between the retaining ring 3 and the valve sleeve 1, which improves the stability of the relative position, reduces vibration, and extends service life.

[0053] Similarly, to further improve the stability between the retaining ring 3 and the valve seat 2, the size of the second limiting groove 21 along the axial direction of the valve sleeve 1 is equal to the thickness of the retaining ring 3. This structure ensures that there will be no relative axial displacement between the retaining ring 3 and the valve seat 2, which improves the stability of the relative position, reduces vibration, and extends service life.

[0054] like Figure 5 As shown, the cross-section of the retaining ring 3 is rectangular. This structure can increase the contact area between the retaining ring 3 and the inner surface of the first limiting groove 12, as well as the contact area between the retaining ring 3 and the inner surface of the second limiting groove 21. This ensures that the retaining ring 3 is subjected to uniform force when limiting the valve sleeve 1 and the valve seat 2, thereby improving its service life.

[0055] For ease of adjustment, the length of the drive arm 32 is greater than the wall thickness of the valve sleeve 1. This structure allows the operator to easily clamp the two drive arms 32 to adjust the distance between them, facilitating the assembly and disassembly of the retaining ring 3 and the valve seat 2.

[0056] It is worth noting that in this embodiment, both drive arms 32 are located in the plane of the limiting ring 31, so that when the limiting ring 31 is inserted into the first limiting slot 12, the two drive arms 32 extend radially out of the adjusting slot 13, which makes it easier to clamp the two drive arms 32 and prevents them from slipping out during clamping.

[0057] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A valve body structure, characterized by, The utility model relates to a valve sleeve (1) and a valve seat (2) and a stop ring (3), and the valve sleeve (1) comprises a connecting channel (11), the inner wall of the connecting channel (11) is provided with a first limiting clamping groove (12), the side wall of the valve sleeve (1) is provided with an adjusting groove (13), the adjusting groove (13) comprises a sliding groove (131) and a limiting groove (132) connected in communication, the limiting groove (132) is communicated with the first limiting clamping groove (12), the sliding groove (131) penetrates to one end of the valve sleeve (1), and the limiting groove (132) is larger than the size of the sliding groove (131) along the circumference of the valve sleeve (1). The valve seat (2) is provided with a second limiting clamping groove (21) on the outer wall, and the valve seat (2) can be partially arranged in the connecting channel (11). The stop ring (3) comprises a limiting ring (31) with an opening and two driving arms (32) arranged at both ends of the limiting ring (31), the length of the driving arm (32) is greater than the wall thickness of the valve sleeve (1), both the driving arms (32) are in the plane where the limiting ring (31) is located, both the driving arms (32) can slide in the adjusting groove (13), and when the two driving arms (32) abut, the stop ring (3) is in a first state, the outer diameter of the stop ring (3) is smaller than the inner diameter of the connecting channel (11); when the two driving arms (32) abut opposite sides of the limiting groove (132) along the circumference of the valve sleeve (1), the stop ring (3) is in a second state, the stop ring (3) can be simultaneously clamped into the first limiting clamping groove (12) and the second limiting clamping groove (21), and both the driving arms (32) are in the adjusting groove (13). The size of the first limiting clamping groove (12) is equal to the thickness of the stop ring (3) along the axial direction of the valve sleeve (1); and / or 2. The valve body structure of claim 1, wherein The size of the second limiting clamping groove (21) is equal to the thickness of the stop ring (3) along the axial direction of the valve sleeve (1). The cross section of the stop ring (3) is rectangular.

3. The valve body structure of claim 2, wherein When the stop ring (3) is in the first state, the outer diameter of the limiting ring (31) is smaller than or equal to the inner diameter of the connecting channel (11).

4. The valve body structure of claim 1, wherein When the stop ring (3) is in the first state, the limiting ring (31) can be completely immersed in the second limiting clamping groove (21); and / or 5. The valve body structure of claim 1, wherein When the stop ring (3) is in the second state, the limiting ring (31) can partially protrude from the first limiting clamping groove (12). The depth of the first limiting clamping groove (12) is smaller than the depth of the second limiting clamping groove (21).

6. The valve body structure of claim 1, wherein ​

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