Positioning tool for disassembling and installing valve body
By designing a positioning fixture for the gearbox valve body, combining fixing and clamping components, the problems of aluminum plate ejection and component misalignment were solved, enabling stable disassembly and installation under single-person operation and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-06
AI Technical Summary
During the disassembly of the gearbox valve body, the elastic force of the small spring causes the aluminum plate to pop out, damaging the surface of the aluminum plate and causing internal parts to shift, affecting the efficiency of disassembly and installation, and requiring multiple people to operate.
A positioning fixture including a fixing component and a clamping component was designed. The fixing component fixes the bottom of the valve body through a fixing column and a base plate, and the clamping component clamps the side of the valve body through an adjustable clamp to prevent the aluminum plate from popping out and the parts from shifting.
It enables stable fixing of the valve body under single-person operation, avoiding damage to the aluminum plate and displacement of parts, and improving disassembly and installation efficiency.
Smart Images

Figure CN223971595U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of disassembly and installation technology of gearbox valve bodies, and specifically to positioning fixtures for disassembly and installation of valve bodies. Background Technology
[0002] Currently, most transmission valve bodies are equipped with various small springs to regulate pressure and ensure stable operation. When the transmission valve body is disassembled, the elastic force generated by the compression of these small springs can cause the outermost aluminum plate of the transmission valve body to pop out the moment the screws are loosened, which can easily cause damage to the surface of the aluminum plate.
[0003] Furthermore, the ejected aluminum plate can cause internal valve body components to lose their restraint and gradually shift out of position following the spring's release force. This disrupts the original state of the valve body, requiring operators to spend time repositioning displaced components and reconfirming the positioning holes during reinstallation to prevent errors. Therefore, the disassembly and installation of a single valve body typically requires one operator to manually restrain the aluminum plate while another performs the disassembly and installation. This is not only time-consuming and labor-intensive but also reduces overall efficiency. Utility Model Content
[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a positioning fixture for disassembling and installing a valve body, the positioning fixture comprising:
[0005] A fixing component, the fixing component including at least one first fixing post, at least one second fixing post, at least one third fixing post and a base plate, wherein the first fixing post, the second fixing post and the third fixing post are synchronously connected to the top of the base plate, and the first fixing post, the second fixing post and the third fixing post are all provided with a predetermined length, and are respectively provided to fix at least a portion of the bottom of the valve body at the end away from the base plate, so as to jointly form a fixing area above the base plate;
[0006] At least one clamping member is held above the base plate, and the clamping member also forms an adjustable-sized clamping opening, such that when the valve body is fixed in the fixed area, each of the clamping members is configured to adjust the size of the clamping opening to fit the size of one side of the valve body.
[0007] According to one embodiment of this application, the first fixing post, the second fixing post, and the third fixing post are respectively evenly and spaced apart on the top of the base plate.
[0008] According to one embodiment of this application, the first fixing post extends axially at the end away from the base plate to form a protrusion, the second fixing post is recessed axially from the outside to the inside at the end away from the base plate to form a groove, and the third fixing post is provided with a snap-fit portion at the end away from the base plate.
[0009] According to one embodiment of this application, the clamping member includes a fixed clamp, a movable member, an elastic member, and a removable clamp. One end of the fixed clamp extends radially outward by a predetermined length to form a clamping portion. The fixed clamp sequentially forms a first channel and a second channel communicating with the first channel along the axial direction. The second channel extends radially outward toward the fixed clamp and is consistent with the extension direction of the clamping portion. The movable member is configured to be at least partially movable along the axial direction of the fixed clamp in both the first channel and the second channel. The elastic member is disposed in the first channel, with one end connected to the inner wall forming the first channel and the other end connected to the movable member to form an elastic force. At least a portion of the removable clamp is located in the second channel to connect with the movable member, and at least another portion of the removable clamp is located outside the second channel to form the clamping opening with the clamping portion. Thus, when the removable clamp moves in the second channel, the clamping opening is configured to be adjustable in size by the movement of the removable clamp.
[0010] According to one embodiment of this application, the clamping member includes a fixed clamping member, a movable member, an elastic member, and a removable clamping member. One end of the fixed clamping member extends radially outward by a predetermined length to form a clamping portion. The fixed clamping member sequentially forms a first channel and a second channel communicating with the first channel along an axial direction. The first channel is configured to extend axially outward toward the fixed clamping member, and the second channel extends radially outward toward the fixed clamping member and is aligned with the extending direction of the clamping portion. The movable member is configured such that at least a portion is simultaneously movable along the axial direction of the fixed clamping member in both the first channel and the second channel. At least one other portion is located outside the fixed clamp, the elastic member is located outside the fixed clamp, and the elastic member is provided with one end abutting against the fixed clamp and the other end abutting against the end of the movable member located outside the fixed clamp to form an elastic force. At least one portion of the movable clamp is located in the second channel to connect with the movable member, and at least another portion of the movable clamp is located outside the second channel to form the clamping opening with the clamping part. Thus, when the movable member moves, the movable clamp is configured to move relatively close to and away from the clamping part in the second channel to adjust the size of the clamping opening.
[0011] According to one embodiment of this application, the other end of the movable member away from the movable clamp is provided to extend radially outward by a predetermined length to form a step for the elastic member to abut against, and the cross-sectional diameter of the step is set to be larger than the cross-sectional diameter of the first channel.
[0012] According to one embodiment of this application, the clamping member includes a fixed clamp, a movable member, an elastic member, and a removable clamp. One end of the fixed clamp extends radially outward by a predetermined length to form a clamping portion. The fixed clamp sequentially forms a first channel and a second channel communicating with the first channel along the axial direction. The first channel is configured to extend radially outward toward the fixed clamp, and the second channel extends radially outward toward the fixed clamp and is consistent with the extension direction of the clamping portion. The movable member is configured to be at least partially movable along the axial direction of the fixed clamp in both the first channel and the second channel, and at least another part of the movable member is located outside the fixed clamp. The elastic member is disposed in the second channel, and one end of the elastic member is connected to the fixed clamp, and the other end is connected to the inner wall forming the second channel to form an elastic force. At least a portion of the removable clamp is located in the second channel to connect with the movable member, and at least another part of the removable clamp is located outside the second channel to form the clamping opening with the clamping portion. Thus, when the removable clamp moves in the second channel, the clamping opening is configured to be adjustable in size by the movement of the removable clamp.
[0013] According to one embodiment of this application, the elastic element is implemented as a spring. Attached Figure Description
[0014] Figure 1 A perspective view of the positioning fixture for valve body disassembly and installation described in this application is shown.
[0015] Figure 2 A schematic diagram of the fixing component in the positioning fixture for valve body disassembly and installation described in this application is shown.
[0016] Figure 3 A schematic diagram of the clamping component in the positioning fixture for valve body disassembly and installation described in this application is shown.
[0017] Figure 4 for Figure 3 The shown is a cross-sectional view of the clamping member. Detailed Implementation
[0018] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.
[0019] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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, the above terms should not be construed as limitations on this application.
[0020] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0021] refer to Figures 1 to 4 A preferred embodiment of the positioning fixture for disassembling and installing a valve body according to the present application will be described in detail below. The positioning fixture for disassembling and installing a valve body includes a fixing member 10 and at least one clamping member 20, wherein the fixing member 10 is used to fix the bottom of a valve body 90, and one of the clamping members 20 is configured to act on a side of the valve body 90 in a clamping manner.
[0022] In other words, when the valve body 90 is fixed to the fixing member 10 and the operator loosens the screws connected to the valve body 90, the clamping action of the clamping member 20 makes it difficult for the aluminum plate portion of the valve body 90 to be ejected by the elastic force of the internal spring. Furthermore, the aluminum plate portion that is not ejected can restrain the internal components of the valve body 90 to prevent these components from shifting.
[0023] Specifically, the fixing member 10 includes at least one first fixing post 11, at least one second fixing post 12, at least one third fixing post 13, and a base plate 14. The first fixing post 11, the second fixing post 12, and the third fixing post 13 are synchronously connected to the top of the base plate 14. The first fixing post 11, the second fixing post 12, and the third fixing post 13 are all provided with a predetermined length and are respectively provided to fix at least a portion of the bottom of the valve body 90 at the end away from the base plate 14, so as to jointly form a fixing area above the base plate 14.
[0024] The clamping member 20 is held above the base plate 14, and the clamping member 20 also forms an adjustable clamping opening 201, so that when the valve body 90 is fixed in the fixed area, each clamping member 20 is configured to adjust the size of the clamping opening 201 to fit the size of one side of the valve body 90.
[0025] Those skilled in the art will understand that the fixing member 10 fixes the valve body 90 from the bottom of the valve body 90 by means of the first fixing post 11, the second fixing post 12 and the third fixing post 13. At the same time, each side of the valve body 90 is clamped by one of the clamping members 20, so that when the valve body 90 is disassembled or installed, the aluminum plate portion of the valve body 90 can be clamped and held in a predetermined position.
[0026] In this way, the manual operation of restricting the position of the valve body aluminum plate by the operator can be performed by the clamping member 20, thereby facilitating the disassembly and installation of the valve body 90 by the operator.
[0027] Preferably, the first fixing post 11, the second fixing post 12 and the third fixing post 13 are evenly and spaced apart on the top of the base plate 14, so that the fixing area is further adapted to the bottom of the valve body 90, thereby making the valve body 90 more stably fixed.
[0028] In one embodiment, as shown in the figure, the first fixing post 11 extends axially at its end away from the base plate 14, forming a protrusion 111, which is configured to fix the valve body 90 by insertion. The second fixing post 12 is recessed axially from the outside to the inside at its end away from the base plate 14, forming a groove 1201, to mate with the valve body 90. The third fixing post 13 has a snap-fit portion 131 at its end away from the base plate 14, which is configured to snap onto the valve body 90, thereby fixing at least a portion of the valve body 90.
[0029] It is worth mentioning that the way the first fixing post 11, the second fixing post 12, and the third fixing post 13 fix the valve body 90 is not unique. For example, as a variation of the above embodiment, the protrusion 111 can be formed by the second fixing post 12 extending axially from the end away from the base plate 14, and the groove 1201 can be formed by the third fixing post 13 recessing axially from the outside to the inside from the end away from the base plate 14. The snap-fit part 131 can be formed by the first fixing post 11. In this way, the valve body 90 can also be fixed and held above the base plate 14.
[0030] In one embodiment, the clamping member 20 includes a fixed clamping member 21, a movable member 22, an elastic member 23, and a movable clamping member 24. One end of the fixed clamping member 21 extends radially outward by a predetermined length to form a clamping portion 211. The fixed clamping member 21 sequentially forms a first channel 2101 and a second channel 2102 communicating with the first channel 2101 along an axial direction. The second channel 2102 extends radially outward toward the fixed clamping member 21 and is aligned with the extending direction of the clamping portion 211. The movable member 22 is configured to be at least partially movable along the axial direction of the fixed clamping member 21, simultaneously moving between the first channel 2101 and the second channel 2102. The elastic member 23 is disposed in the first channel 2101, with one end connected to the inner wall forming the first channel 2101 and the other end connected to the movable member 22 to form an elastic force. At least a portion of the movable clamp 24 is located in the second channel 2102 to connect with the movable member 22, and at least another portion of the movable clamp 24 is located outside the second channel 2102 to form the clamping opening 201 with the clamping part 211. Thus, when the movable clamp 24 moves in the second channel 2102, the clamping opening 201 is configured to be adjustable in size by the movement of the movable clamp 24.
[0031] Understandably, when the clamping member 20 is used to clamp the valve body 90, the movable clamp 24 is moved so that the clamping jaw 201 is adjusted to fit the size of the side portion of the valve body 90. At this time, the elastic member 23 is stretched within the first channel 2101 to form an elastic force, thereby driving the movable clamp 24 to move towards the clamping portion 211, thus clamping one side of the valve body 90. That is, after the operator loosens the screws, the aluminum plate portion of the valve body 90 will be clamped by the clamping portion 211 of the fixed clamp 21 and the movable clamp 24.
[0032] In another embodiment, such as Figure 3 and 4As shown, the clamping member 20 includes a fixed clamping member 21, a movable member 22, an elastic member 23, and a movable clamping member 24. One end of the fixed clamping member 21 extends radially outward by a predetermined length to form a clamping portion 211. The fixed clamping member 21 sequentially forms a first channel 2101 and a second channel 2102 communicating with the first channel 2101 along its axial direction. The first channel 2101 is configured to extend radially outward toward the fixed clamping member 21, and the second channel 2102 extends radially outward toward the fixed clamping member 21 and maintains the same extension direction as the clamping portion 211. At least a portion of the movable member 22 is configured to move simultaneously along the axial direction of the fixed clamping member 21 between the first channel 2101 and the second channel 2102, and at least another portion of the movable member 22 is located outside the fixed clamping member 21. The elastic member 23 is located outside the fixed clamp 21, and one end of the elastic member 23 is arranged to abut against the fixed clamp 21, and the other end abuts against the end of the movable member 22 located outside the fixed clamp 21 to form an elastic force. At least a portion of the movable clamp 24 is located in the second channel 2102 to connect with the movable member 22, and at least another portion of the movable clamp 24 is located outside the second channel 2102 to form the clamping opening 201 with the clamping part 211. Thus, when the movable member 22 moves, the movable clamp 24 is configured to move relatively close to and away from the clamping part 211 in the second channel 2102 to adjust the size of the clamping opening 201.
[0033] It should be noted that when the clamping member 20 is used to clamp the valve body 90, the operator can apply force to the part of the moving member 22 located outside the fixed clamp 21, so that the moving member 22 moves as a whole into the fixed clamp 21. The moving clamp 24 moves with the moving member 22 and gradually makes the clamping jaw 201 adapt to the size of the side of the valve body 90. At this time, the elastic member 23 is compressed to form an elastic force, thereby clamping one side of the valve body 90.
[0034] Preferably, the other end of the movable member 22 away from the movable clamp 24 is provided to extend radially outward by a predetermined length to form a step 221 for the elastic member 23 to abut against, and the cross-sectional diameter of the step 221 is set to be larger than the cross-sectional diameter of the first channel 2101.
[0035] In another embodiment, the clamping member 20 includes a fixed clamping member 21, a movable member 22, an elastic member 23, and a movable clamping member 24. One end of the fixed clamping member 21 extends radially outward by a predetermined length to form a clamping portion 211. The fixed clamping member 21 sequentially forms a first channel 2101 and a second channel 2102 communicating with the first channel 2101 along its axial direction. The first channel 2101 is configured to extend axially outward toward the fixed clamping member 21, and the second channel 2102 extends radially outward toward the fixed clamping member 21 and is aligned with the extending direction of the clamping portion 211. At least a portion of the movable member 22 is configured to move simultaneously along the axial direction of the fixed clamping member 21 within both the first channel 2101 and the second channel 2102, and at least another portion of the movable member 22 is located outside the fixed clamping member 21. The elastic member 23 is disposed in the second channel 2102, and one end of the elastic member 23 is connected to the fixed clamp 21, and the other end is connected to the inner wall forming the second channel 2102 to form an elastic force. At least a portion of the movable clamp 24 is located in the second channel 2102 to connect with the movable member 22, and at least another portion of the movable clamp 24 is located outside the second channel 2102 to form the clamping opening 201 with the clamping portion 211. Thus, when the movable clamp 24 moves in the second channel 2102, the clamping opening 201 is configured to be adjustable in size by the movement of the movable clamp 24.
[0036] It is understood that when the clamping member 20 is used to clamp the valve body 90, the movable clamp 24 is moved so that the clamping jaw 201 is adjusted to fit the size of the side of the valve body 90. At this time, the elastic member 23 is compressed in the second channel 2102 to form an elastic force, so as to drive the movable clamp 24 to move toward the clamping part 211, thereby clamping one side of the valve body 90.
[0037] It is worth mentioning that the elastic element 23 is implemented as a spring.
[0038] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.
Claims
1. A positioning tool for dismounting and mounting a valve body, characterized in that, The positioning tool for disassembling and assembling the valve body comprises: a fixing member, which comprises at least one first fixing column, at least one second fixing column, at least one third fixing column and a bottom plate, wherein the first fixing column, the second fixing column and the third fixing column are synchronously connected to the top of the bottom plate, and the first fixing column, the second fixing column and the third fixing column are all provided with a predetermined length and are respectively arranged to fix at least part of the bottom of the valve body away from the bottom plate to jointly form a fixing area above the bottom plate; at least one clamping member, which is kept above the bottom plate and further forms a size-adjustable clamping opening, so that each clamping member is arranged to adjust the size of the clamping opening to adapt to the size of one side of the valve body when the valve body is fixed in the fixing area.
2. The positioning tool for disassembling and assembling the valve body according to claim 1, wherein, The first fixing column, the second fixing column and the third fixing column are respectively and uniformly and spacedly arranged on the top of the bottom plate.
3. The positioning tool for disassembling and assembling the valve body according to claim 2, wherein, The first fixing column is formed with a protrusion by extending axially at the end away from the bottom plate, the second fixing column is formed with a groove by recessing axially from outside to inside at the end away from the bottom plate, and the third fixing column is provided with a clamping portion at the end away from the bottom plate.
4. The positioning tool for disassembling and assembling the valve body according to claim 1 or 3, wherein, The clamping member comprises a fixed clamping piece, a moving piece, an elastic piece and a movable clamping piece, wherein one end of the fixed clamping piece extends radially outward by a predetermined length to form a clamping portion, and the fixed clamping piece is sequentially formed with a first channel and a second channel communicated with the first channel in the axial direction, and the second channel extends radially outward toward the fixed clamping piece and is consistent with the extension direction of the clamping portion, at least part of the moving piece is arranged to move simultaneously in the first channel and the second channel in the axial direction of the fixed clamping piece, the elastic piece is arranged in the first channel, one end of the elastic piece is connected to the inner wall forming the first channel, and the other end is connected to the moving piece to form an elastic force, at least part of the movable clamping piece is located in the second channel to be connected with the moving piece, and at least another part of the movable clamping piece is located outside the second channel to form the clamping opening with the clamping portion, so that the clamping opening is arranged to adjust the size by the movement of the movable clamping piece when the movable clamping piece moves in the second channel.
5. The positioning tool for disassembling and assembling the valve body according to claim 1 or 3, wherein, The clamping member comprises a fixed clamping piece, a moving piece, an elastic piece and a movable clamping piece. One end of the fixed clamping piece extends radially outward by a predetermined length to form a clamping portion. The fixed clamping piece is sequentially formed with a first channel extending axially outward and a second channel extending radially outward and consistent with the extension direction of the clamping portion. At least a part of the moving piece is arranged to move simultaneously in the first channel and the second channel along the axial direction of the fixed clamping piece. At least another part of the moving piece is located outside the fixed clamping piece. The elastic piece is located outside the fixed clamping piece. One end of the elastic piece is arranged to abut against the fixed clamping piece, and the other end is arranged to abut against the end of the moving piece outside the fixed clamping piece to form an elastic force. At least a part of the movable clamping piece is located in the second channel to be connected with the moving piece. At least another part of the movable clamping piece is located outside the second channel to form the clamping opening with the clamping portion. When the moving piece moves, the movable clamping piece is arranged to move relatively close to and away from the clamping portion in the second channel to adjust the size of the clamping opening.
6. The positioning tool for disassembling and assembling the valve body according to claim 5, wherein, The other end of the moving piece away from the movable clamping piece is arranged to extend integrally radially outward by a predetermined length to form a step for the elastic piece to abut against. The cross-sectional diameter of the step is arranged to be greater than the cross-sectional diameter of the first channel.
7. The positioning tool for disassembling and assembling the valve body according to claim 1 or 3, wherein The clamping member comprises a fixed clamping piece, a moving piece, an elastic piece and a movable clamping piece. One end of the fixed clamping piece extends radially outward by a predetermined length to form a clamping portion. The fixed clamping piece is sequentially formed with a first channel extending axially outward and a second channel extending radially outward and consistent with the extension direction of the clamping portion. At least a part of the moving piece is arranged to move simultaneously in the first channel and the second channel along the axial direction of the fixed clamping piece. At least another part of the moving piece is located outside the fixed clamping piece. The elastic piece is arranged in the second channel. One end of the elastic piece is connected to the fixed clamping piece, and the other end is connected to the inner wall forming the second channel to form an elastic force. At least a part of the movable clamping piece is located in the second channel to be connected with the moving piece. At least another part of the movable clamping piece is located outside the second channel to form the clamping opening with the clamping portion. When the movable clamping piece moves in the second channel, the clamping opening is arranged to adjust the size by the movement of the movable clamping piece.
8. The positioning tool for disassembling and assembling the valve body according to claim 7, wherein, The elastic piece is implemented to comprise a spring. The elastic piece is implemented to comprise a spring.