Valve body structure

Abstract

The invention discloses a valve body structure, and relates to the technical field of hydraulic valves. The valve body structure comprises a valve sleeve, a valve seat and a check ring, a first limiting clamping groove is formed in the inner wall of the valve sleeve, an adjusting groove is formed in the side wall of the valve sleeve, the adjusting groove is communicated with the first limiting clamping groove, and the adjusting groove penetrates through one end of the valve sleeve; a second limiting clamping groove is formed in the outer wall of the valve seat; the check ring comprises a limiting ring and two driving arms, the two driving arms can slide in the adjusting groove, when the two driving arms abut against each other, the check ring is in a first state, the outer diameter of the check ring is smaller than the inner diameter of the connecting channel, when the two driving arms abut against the adjusting groove, the check ring is in a second state, and the check ring can be clamped into the first limiting clamping groove and the second limiting clamping groove at the same time. And the two driving arms are positioned in the adjusting groove. According to the valve body structure, the valve seat and the valve sleeve can be disassembled and assembled through the two driving arms of the check ring, the problems that the check ring is difficult to assemble and cannot be disassembled are effectively solved, and the valve body structure is convenient to maintain.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic valves, and in particular to a valve body structure. Background Art

[0002] The valve body structure of the hydraulic valve is generally assembled along the axial direction, and the axial limit between its components is achieved by the retaining ring. For example, when assembling the valve seat and the valve sleeve, it is necessary to first set the valve seat in the valve sleeve, and then insert the retaining ring at one end of the assembly so that the retaining ring is stuck in the limit groove in the valve sleeve, thereby preventing the valve seat from falling out of the valve sleeve.

[0003] However, the valve seat of some valve body structures is not completely arranged inside the valve sleeve, which requires a retaining ring to be arranged between the valve seat and the valve sleeve and to be clamped with the valve seat and the valve sleeve at the same time, resulting in difficulty in assembly and disassembly, and it is difficult to repair the valve body structure. Summary of the invention

[0004] The purpose of the present invention is to provide a valve body structure, which can disassemble and assemble the valve seat and the valve sleeve through two driving arms of the retaining ring, effectively solving the problem of difficult assembly and inability to disassemble the retaining ring, and facilitating the maintenance of the valve body structure.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A valve body structure, comprising:

[0007] A valve sleeve, the valve sleeve comprising a connecting channel, the inner wall of the connecting channel is provided with a first limit slot, the side wall of the valve sleeve is provided with an adjustment slot, the adjustment slot is communicated with the first limit slot, and the adjustment slot passes through one end of the valve sleeve;

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

[0009] The retaining ring comprises a limiting ring with an opening and two driving arms arranged at both ends of the limiting ring, the two driving arms can slide in the adjusting groove, and when the two driving arms abut against each other, the retaining ring is in a first state, the outer diameter of the retaining ring is smaller than the inner diameter of the connecting channel, and when the two driving arms abut against the adjusting grooves respectively, the retaining ring is in a second state, the retaining ring can be inserted into the first limiting slot and the second limiting slot at the same time, and the two driving arms are in the adjusting grooves.

[0010] As an optional scheme for the above-mentioned 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 passes through one end of the valve sleeve, and 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 solution of the above valve body structure, when the retaining ring is in the second state, the two driving arms respectively abut against opposite sides of the limiting groove along the circumferential direction of the valve sleeve.

[0012] As an optional solution of the above valve body structure, along the axial direction of the valve sleeve, the size of the first limit 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 limit groove is equal to the thickness of the retaining ring.

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

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

[0016] As an optional solution of the above valve body structure, when the retaining ring is in the first state, the limiting ring can be completely immersed 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 groove.

[0018] As an optional solution of the above valve body structure, the depth of the first limit slot is smaller than the depth of the second limit slot.

[0019] As an optional solution of the above valve body structure, the length of the driving arm is greater than the wall thickness of the valve sleeve.

[0020] As an optional solution of the above valve body structure, it is characterized in that the two driving arms are both located in the plane where the limiting ring is located.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a valve body structure. In the valve body structure, the retaining ring can change its inner diameter and outer diameter by adjusting the gap between two driving arms, and the valve sleeve is designed with an adjustment groove for the driving arm of the retaining ring to pass through, so that when the valve body structure is assembled, the retaining ring can be first sleeved on the valve seat, and the retaining ring is in a first state, and the valve seat is installed in the valve sleeve. At this time, the driving arm of the retaining ring slides in the adjustment groove, and then the retaining ring is in a second state, ensuring that the retaining ring is simultaneously inserted into the first limit slot and the second limit slot, so as to axially limit the valve seat and the valve sleeve and play a fixing role. When disassembly is required, it is only necessary to reduce the gap between the two driving arms, so that the retaining ring exits the first limit slot, and the valve seat can be removed from the valve sleeve.

[0023] The valve body structure can disassemble and assemble the valve seat and the valve sleeve through the two driving arms of the retaining ring, effectively solving the problem of difficult assembly and inability to disassemble the retaining ring, and facilitating maintenance of the valve body structure. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0029] In the figure:

[0030] 1. valve sleeve; 11. connecting channel; 12. first limit slot; 13. adjusting slot; 131. slide slot; 132. limit slot;

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

[0032] 3. retaining ring; 31. limiting ring; 32. driving arm;

[0033] 4. Valve core. DETAILED DESCRIPTION

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

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0036] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[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 a liquid inlet and a liquid outlet connected to the connecting channel 11. The valve seat 2 can be partially arranged in the connecting channel 11. A valve core 4 is also arranged in the valve sleeve 1. By adjusting the distance between the valve core 4 and the valve seat 2, the connection and disconnection of the liquid inlet and the liquid outlet and the flow rate when connected can be controlled.

[0040] like Figure 3 to Figure 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 limit groove 12, the side wall of the valve sleeve 1 is provided with an adjusting groove 13, the adjusting groove 13 is communicated with the first limit groove 12, the adjusting groove 13 passes through one end of the valve sleeve 1, and the outer wall of the valve seat 2 is provided with a second limit groove 21, the retaining ring 3 includes a limit ring 31 with an opening and two driving arms 32 arranged at both ends of the limit ring 31, the two driving arms 32 can slide in the adjusting groove 13, and when the two driving arms 32 abut, the retaining ring 3 is in a first state, the outer diameter of the retaining ring 3 is smaller than the inner diameter of the connecting channel 11, and when the two driving arms 32 respectively abut against the adjusting groove 13, the retaining ring 3 is in a second state, the retaining ring 3 can be simultaneously inserted into the first limit groove 12 and the second limit groove 21, and the two driving arms 32 are in the adjusting groove 13.

[0041] In the valve body structure, the retaining ring 3 can change its inner diameter and outer diameter by adjusting the gap between the two driving arms 32. The valve sleeve 1 is designed with an adjustment groove 13 for the driving arm 32 of the retaining ring 3 to pass through, so that when the valve body structure is assembled, the retaining ring 3 can be first sleeved on the valve seat 2, and the retaining ring 3 is in the first state, and the valve seat 2 is installed in the valve sleeve 1. At this time, the driving arm 32 of the retaining ring 3 slides in the adjustment groove 13, and then the retaining ring 3 is in the second state, ensuring that the retaining ring 3 is simultaneously inserted into the first limit groove 12 and the second limit groove 21, so as to axially limit the valve seat 2 and the valve sleeve 1 and play a fixing role. When disassembly is required, it is only necessary to reduce the gap between the two driving arms 32, so that the retaining ring 3 withdraws from the first limit groove 12, and the valve seat 2 can be removed from the valve sleeve 1.

[0042] The valve body structure can disassemble and assemble the valve seat 2 and the valve sleeve 1 through the two driving arms 32 of the retaining ring 3, effectively solving the problem of difficult assembly and inability to disassemble the retaining ring 3, and facilitating maintenance of the valve body structure.

[0043] like Figure 1 and Figure 3 As shown, the adjustment groove 13 includes a connected slide groove 131 and a limit groove 132, the limit groove 132 is connected to the first limit slot 12, the slide groove 131 passes through one end of the valve sleeve 1, and along the circumference of the valve sleeve 1, the size of the limit groove 132 is larger than the size of the slide 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 fall out of the first limiting groove 12, thereby improving the reliability of the axial limitation of the valve sleeve 1 and the valve seat 2 by the retaining ring 3.

[0045] Furthermore, when the retaining ring 3 is in the second state, the two driving arms 32 respectively abut against the opposite sides of the limiting groove 132 along the circumferential direction of the valve sleeve 1. That is to say, when the limiting ring 31 of the retaining ring 3 is installed in the first limiting groove 12 and the two driving arms 32 are released, the distance between the two driving arms 32 increases due to the elasticity of the retaining ring 3 itself, and when the two driving arms 32 are limited by the inner wall of the adjustment groove 13, the retaining ring 3 is in the second state, at which time the size of the limiting ring 31 remains unchanged, so that the limiting ring 31 can be clamped in the first limiting groove 12 and the second limiting groove 21 at the same time, and the retaining ring 3 can be kept stable by the two driving arms 32 to 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 inserted into the first limit slot 12, when the retaining ring 3 is in the first state, the outer diameter of the limit 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 driving arms 32 can be loosened.

[0047] In this embodiment, when the retaining ring 3 is in the first state, the limiting ring 31 can be completely immersed in the second limiting groove 21. That is to say, during assembly, the retaining ring 3 can be sleeved on the valve seat 2 and the limiting ring 31 can be inserted into the second limiting groove 21, and then the two driving arms 32 of the retaining ring 3 can be abutted. Since the limiting ring 31 can be completely immersed in the second limiting groove 21 at this time, the retaining ring 3 can be installed in the valve sleeve 1 along with the valve seat 2, and the two driving arms 32 enter the adjustment groove 13 at this time. After the valve seat 2 and the valve sleeve 1 are assembled in place, the two driving arms 32 can be loosened, which reduces the difficulty of assembly.

[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 realizing axial limitation of the valve sleeve 1 and the valve seat 2.

[0049] That is to say, when the two driving arms 32 are in the adjusting 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 along 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 radially abutted and limited by the second limiting groove 21, 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 immersed in the second limiting slot 21 and the retaining ring 3 will remain partially protruding from the first limiting slot 12 when abutting against the inner surface of the first limiting slot 12, the depth of the first limiting slot 12 is less than the depth of the second limiting slot 21.

[0052] In order to further improve the stability between the retaining ring 3 and the valve sleeve 1, along the axial direction of the valve sleeve 1, the size of the first limit groove 12 is equal to the thickness of the retaining ring 3. This structure ensures that there will be no axial relative displacement between the retaining ring 3 and the valve sleeve 1, which not only improves the stability of the relative position, but also reduces vibration and increases the service life.

[0053] Similarly, in order to further improve the stability between the retaining ring 3 and the valve seat 2, along the axial direction of the valve sleeve 1, the size of the second limit groove 21 is equal to the thickness of the retaining ring 3. This structure ensures that there will be no axial relative displacement between the retaining ring 3 and the valve seat 2, which not only improves the stability of the relative position, but also reduces vibration and increases the service life.

[0054] like Figure 5 As shown, the cross-section of the retaining ring 3 is a rectangle. This structure can increase the contact area between the retaining ring 3 and the inner surface of the first limiting groove 12, and can also increase the contact area between the retaining ring 3 and the inner surface of the second limiting groove 21, so that the retaining ring 3 is evenly stressed when limiting the valve sleeve 1 and the valve seat 2, thereby increasing the service life.

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

[0056] It is worth noting that in this embodiment, the two driving arms 32 are both in the plane where the limiting ring 31 is located, so that when the limiting ring 31 is inserted into the first limiting slot 12, the two driving arms 32 extend radially out of the adjustment slot 13, which is convenient for clamping the two driving arms 32 and is not easy to slip off during clamping.

[0057] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A valve body structure, characterized in that: include: A valve sleeve (1), the valve sleeve (1) comprising a connecting channel (11), the inner wall of the connecting channel (11) being provided with a first limit slot (12), the side wall of the valve sleeve (1) being provided with an adjustment slot (13), the adjustment slot (13) being communicated with the first limit slot (12), and the adjustment slot (13) being extended to one end of the valve sleeve (1); A valve seat (2), wherein the outer wall of the valve seat (2) is provided with a second limit groove (21), and the valve seat (2) can be partially arranged in the connecting channel (11); A retaining ring (3), the retaining ring (3) comprising a limiting ring (31) with an opening and two driving arms (32) arranged at both ends of the limiting ring (31), the two driving arms (32) being able to slide in the adjusting groove (13), and when the two driving arms (32) are in contact with each other, the retaining ring (3) is in a first state, the outer diameter of the retaining ring (3) is smaller than the inner diameter of the connecting channel (11), and when the two driving arms (32) are respectively in contact with the adjusting grooves (13), the retaining ring (3) is in a second state, the retaining ring (3) being able to be simultaneously 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).

2. The valve body structure according to claim 1, characterized in that: The regulating groove (13) comprises 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) passes through one end of the valve sleeve (1), and 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).

3. The valve body structure according to claim 2, characterized in that: When the retaining ring (3) is in the second state, the two driving arms (32) respectively abut against two opposite sides of the limiting groove (132) along the circumference of the valve sleeve (1).

4. The valve body structure according to claim 1, characterized in that: Along the axial direction of the valve sleeve (1), the size of the first limit groove (12) is equal to the thickness of the retaining ring (3); and / or Along the axial direction of the valve sleeve (1), the size of the second limit groove (21) is equal to the thickness of the retaining ring (3).

5. The valve body structure according to claim 4, characterized in that: The cross section of the retaining ring (3) is rectangular.

6. The valve body structure according to claim 1, characterized in that: When the retaining 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).

7. The valve body structure according to claim 1, characterized in that: When the retaining ring (3) is in the first state, the limiting ring (31) can be completely immersed in the second limiting groove (21); and / or When the retaining ring (3) is in the second state, the limiting ring (31) can partially protrude from the first limiting groove (12).

8. The valve body structure according to claim 1, characterized in that: The depth of the first limiting slot (12) is less than the depth of the second limiting slot (21).

9. The valve body structure according to claim 1, characterized in that: The length of the driving arm (32) is greater than the wall thickness of the valve sleeve (1).

10. The valve body structure according to claim 1, characterized in that: The two driving arms (32) are both located in the plane where the limiting ring (31) is located.

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