Hydraulic valve sleeve

Abstract

The utility model discloses a hydraulic valve sleeve, which relates to the technical field of valve sleeves and comprises a valve sleeve body, and inner sleeves are fixedly connected to two ends of the valve sleeve body. A valve sleeve shell is arranged on the outer side of the inner sleeve, an extension rod is fixedly connected to the side, close to the valve sleeve body, of the valve sleeve shell, and a clamping block is fixedly connected to the other end of the extension rod. A first inner groove is formed in the inner side of the valve sleeve body, a connecting plate is slidably connected to the inner side of the first inner groove, a limiting block is fixedly connected to the bottom end of the connecting plate, and the clamping block is arranged on the inner side of the limiting block. The extension rod and the clamping block are fixedly connected to the end of the valve sleeve shell, the limiting block is arranged on the inner side of the valve sleeve body and used for limiting the extension rod, and when limiting of the clamping block needs to be relieved, the clamping block can slide out from the inner side of the limiting block only by pressing the pressing head to press the limiting block, and therefore the valve sleeve is convenient to use. The locking assembly is simple in structure, and locking and unlocking of the valve sleeve shell can be rapidly completed.

Description

Technical Field

[0001] The utility model relates to the technical field of valve sleeves, in particular to a hydraulic valve sleeve. Background Art

[0002] The valve sleeve is the core conversion element of the servo control system, and its performance index directly affects the accuracy and stability of the entire control system.

[0003] The utility model patent with patent application publication number 202321161226.0 discloses a hydraulic valve sleeve, including a valve sleeve shell, an inner sleeve is provided inside the valve sleeve shell, a serrated ring is provided on the outer peripheral surface of the inner sleeve, unlocking keys are provided on both sides of the outer ends of the valve sleeve shell, an extension rod is provided at the bottom of the unlocking key, a serrated bar is provided on the outer side of the extension rod, the serrated bar is fixedly provided on one side of the extension rod, a gear is also provided on the side of the extension rod provided with the serrated bar, a movable block is provided on the side of the gear away from the extension rod, a serrated bar is also provided on the side of the movable block close to the gear, and a clamping plate is provided at the bottom of the movable block, and reverse movement between the extension rod and the movable block is realized by directly meshing and connecting two serrated bars and gears, so that when unlocking, the valve sleeve shell and the inner sleeve bracket can be disassembled by pressing the unlocking key inwardly with the thumb. Compared with unlocking by stretching outward, such a design greatly improves the disassembly efficiency and makes the disassembly and assembly between the valve sleeve shell and the inner sleeve more convenient.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the internal structure of the above scheme is relatively complicated. A serrated ring is arranged inside, which requires a lot of processing processes before use. The design scheme is not reasonable enough, and there are many internal parts, which are easy to be damaged during use. The gears and the serrations are also prone to wear after long-term use, which leads to a decrease in the bite force and a poor limiting effect.

[0005] Therefore, it is necessary to invent a hydraulic valve sleeve to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a hydraulic valve sleeve, in which an extension rod and a clamping block are fixedly connected to the end of the valve sleeve shell, and a limiting block is arranged on the inner side of the valve sleeve body for limiting the extension rod. When it is necessary to release the limit of the clamping block, it is only necessary to press the pressing head to press down the limiting block so that the clamping block can slide out from the inner side of the limiting block. The locking assembly has a simple structure and can quickly complete the locking and releasing of the valve sleeve shell to solve the problem that the internal structure of the above scheme proposed in the above background technology is relatively complicated, and a serrated ring is arranged inside it, which requires a lot of processing processes before use, and the design scheme is not reasonable enough. In addition, there are many internal components, which are easy to be damaged during use. After long-term use, the gears and the saw teeth are also prone to wear, thereby reducing the bite force and causing the limiting effect to deteriorate.

[0007] According to one aspect of the present disclosure, the following technical solution is provided: a hydraulic valve sleeve, comprising a valve sleeve body, both ends of the valve sleeve body are fixedly connected with inner sleeves, an anti-slip convex ring is arranged on the outer side of the valve sleeve body, and a protective layer is arranged on the inner side of the valve sleeve body;

[0008] A valve sleeve outer shell is arranged on the outer side of the inner sleeve, an extension rod is fixedly connected to one side of the valve sleeve outer shell close to the valve sleeve body, and a clamping block is fixedly connected to the other end of the extension rod;

[0009] A first inner groove is arranged on the inner side of the valve sleeve body, a connecting plate is slidably connected to the inner side of the first inner groove, a bottom end of the connecting plate is fixedly connected to a limiting block, and the clamping block is arranged on the inner side of the limiting block.

[0010] According to a hydraulic valve sleeve of at least one embodiment of the present disclosure, a pressing head is fixedly connected to the top end of the connecting plate, the pressing head is slidably connected to the inner side of the first inner groove, and the top end of the pressing head is arranged on the outer side of the valve sleeve body.

[0011] According to a hydraulic valve sleeve of at least one embodiment of the present disclosure, a through groove is provided on one side of the limit block, the through groove and the clamping block are arranged corresponding to each other, a second inner groove is provided on the inner side of the valve sleeve body, and the extension rod and the clamping block are both slidably connected to the inner side of the second inner groove.

[0012] According to a hydraulic valve sleeve of at least one embodiment of the present disclosure, a connecting block is fixedly connected to the other side of the limit block, a guide rod is provided at the bottom end of the connecting block, and the guide rod is slidably connected to the inner side of the connecting block.

[0013] According to a hydraulic valve sleeve of at least one embodiment of the present disclosure, a spring is disposed at the bottom end of the connection block, and the spring is disposed on the outside of the guide rod.

[0014] Technical effects and advantages of the utility model:

[0015] (1) The utility model has an extension rod and a clamping block fixedly connected to the end of the valve sleeve shell, and a limit block is provided on the inner side of the valve sleeve body for limiting the extension rod. When it is necessary to release the limit of the clamping block, it is only necessary to press the pressing head to press down the limit block so that the clamping block can slide out from the inner side of the limit block. The locking assembly has a simple structure and can quickly complete the locking and releasing of the valve sleeve shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0017] Figure 1 It is a schematic diagram of the overall structure of a hydraulic valve sleeve according to an embodiment of the present disclosure.

[0018] Figure 2 It is a schematic diagram of the internal structure of a hydraulic valve sleeve according to an embodiment of the present disclosure.

[0019] Figure 3 for Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0020] The specific reference numerals in the figure are:

[0021] 1. Valve sleeve body; 11. Anti-skid convex ring; 12. Inner sleeve; 13. First inner groove; 14. Second inner groove;

[0022] 2. Valve sleeve housing; 21. Extension rod; 22. Block;

[0023] 3. Protective layer;

[0024] 4. Pressing head; 41. Connecting plate; 42. Limiting block; 421. Through slot;

[0025] 5. Connecting block; 51. Guide rod; 52. Spring. DETAILED DESCRIPTION

[0026] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0029] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0030] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0031] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0032] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0033] like Figure 1-Figure 3 As shown, a hydraulic valve sleeve is characterized in that it comprises a valve sleeve body 1, both ends of the valve sleeve body 1 are fixedly connected with inner sleeves 12, an anti-slip convex ring 11 is arranged on the outer side of the valve sleeve body 1, and a protective layer 3 is arranged on the inner side of the valve sleeve body 1;

[0034] A valve sleeve outer shell 2 is disposed outside the inner sleeve 12, an extension rod 21 is fixedly connected to one side of the valve sleeve outer shell 2 close to the valve sleeve body 1, and a clamping block 22 is fixedly connected to the other end of the extension rod 21;

[0035] A first inner groove 13 is provided on the inner side of the valve sleeve body 1, and a connecting plate 41 is slidably connected to the inner side of the first inner groove 13. A limit block 42 is fixedly connected to the bottom end of the connecting plate 41, and a clamping block 22 is provided on the inner side of the limit block 42. An extension rod 21 and a clamping block 22 are fixedly connected to the end of the valve sleeve shell 2. A limit block 42 is provided on the inner side of the valve sleeve body 1 for limiting the extension rod 21. When it is necessary to release the limit of the clamping block 22, it is only necessary to press the pressing head 4 to press down the limit block 42 so that the clamping block 22 can slide out from the inner side of the limit block 42. The above locking assembly has a simple structure and can quickly complete the locking and releasing of the valve sleeve shell 2.

[0036] The top end of the connecting plate 41 is fixedly connected with a pressing head 4, which is slidably connected to the inner side of the first inner groove 13. The top end of the pressing head 4 is arranged on the outer side of the valve sleeve body 1. By setting the pressing head 4, the connecting plate 41 can be effectively pressed to move, thereby driving the limit block 42 to move.

[0037] A through groove 421 is provided on one side of the limit block 42, and the through groove 421 and the block 22 are arranged corresponding to each other. A second inner groove 14 is provided on the inner side of the valve sleeve body 1, and the extension rod 21 and the block 22 are both slidably connected to the inner side of the second inner groove 14. By providing the through groove 421, the size of the through groove 421 is arranged corresponding to the block 22, so that the block 22 can pass through the through groove 421 and be arranged on the inner side of the limit block 42. At the same time, the bottom end of the through groove 421 is provided with an angle corresponding to the angle of the block 22, so that when the block 22 moves toward the inner side of the limit block 42, the bottom end of the through groove 421 squeezes the block 22 so that the block 22 can more conveniently enter the inner side of the limit block 42. By providing the second inner groove 14, the extension rod 21 and the block 22 can pass through the second inner groove 14 and enter the inner side of the limit block 42 for limiting.

[0038] The other side of the limit block 42 is fixedly connected to a connecting block 5, and a guide rod 51 is provided at the bottom end of the connecting block 5, and the guide rod 51 is slidably connected to the inner side of the connecting block 5, and a spring 52 is provided at the bottom end of the connecting block 5, and the spring 52 is provided on the outer side of the guide rod 51. By providing a spring 52 at the bottom end of the connecting block 5, the spring 52 can effectively lift up the connecting block 5, and a clamping block is provided at the top end of the guide rod 51, and the clamping block is provided on the inner side of the connecting block 5. When the spring 52 pushes the connecting block 5 upward, the clamping block can effectively limit the position of the connecting block 5, and the connecting block 5 is fixed to the outer side of the limit block 42, thereby effectively limiting the position of the limit block 42, and the clamping block is slidably connected to the inner side of the connecting block 5.

[0039] When the valve sleeve shell 2 needs to be removed from the outer side of the inner sleeve 12, the pressing head 4 is pressed to drive the connecting plate 41 to move downward, thereby driving the limit block 42 to move downward, and the limit block 42 drives the connecting block 5 to squeeze the spring 52 to move downward. At this time, the spring 52 is in a compressed state, and the through groove 421 is flush with the block 22. The valve sleeve shell 2 is pulled to drive the extension rod 21 to pull the block 22 out from the inner side of the through groove 421.

[0040] When it is necessary to set the valve sleeve shell 2 on the outer side of the inner sleeve 12, the valve sleeve shell 2 is sleeved on the outer side of the inner sleeve 12, and the extension rod 21 and the block 22 are slid into the inner side of the first inner groove 13 along the second inner groove 14. At this time, the side of the block 22 squeezes the bottom end of the through groove 421, so that the limit block 42 moves downward. Finally, after the block 22 completely enters the inner side of the limit block 42, the spring 52 squeezes upward to drive the connecting block 5 and the limit block 42 to move upward, so that the block 22 is limited and clamped to the inner side of the limit block 42 for fixing.

[0041] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A hydraulic valve sleeve, characterized in that: It comprises a valve sleeve body (1), both ends of the valve sleeve body (1) are fixedly connected to inner sleeves (12), the outer side of the valve sleeve body (1) is provided with an anti-slip convex ring (11), and the inner side of the valve sleeve body (1) is provided with a protective layer (3); A valve sleeve outer shell (2) is arranged on the outer side of the inner sleeve (12); an extension rod (21) is fixedly connected to one side of the valve sleeve outer shell (2) close to the valve sleeve body (1); and a clamping block (22) is fixedly connected to the other end of the extension rod (21); A first inner groove (13) is provided on the inner side of the valve sleeve body (1), a connecting plate (41) is slidably connected to the inner side of the first inner groove (13), a bottom end of the connecting plate (41) is fixedly connected to a limit block (42), and the clamping block (22) is provided on the inner side of the limit block (42).

2. A hydraulic valve sleeve according to claim 1, characterized in that: The top end of the connecting plate (41) is fixedly connected to a pressing head (4), the pressing head (4) is slidably connected to the inner side of the first inner groove (13), and the top end of the pressing head (4) is arranged on the outer side of the valve sleeve body (1).

3. A hydraulic valve sleeve according to claim 2, characterized in that: A through groove (421) is provided on one side of the limit block (42), the through groove (421) and the clamping block (22) are arranged corresponding to each other, a second inner groove (14) is provided on the inner side of the valve sleeve body (1), and the extension rod (21) and the clamping block (22) are both slidably connected to the inner side of the second inner groove (14).

4. A hydraulic valve sleeve according to claim 3, characterized in that: The other side of the limit block (42) is fixedly connected to a connection block (5), and a guide rod (51) is provided at the bottom end of the connection block (5), and the guide rod (51) is slidably connected to the inner side of the connection block (5).

5. A hydraulic valve sleeve according to claim 4, characterized in that: A spring (52) is provided at the bottom end of the connection block (5), and the spring (52) is arranged on the outside of the guide rod (51).

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