Multi-joint valve body

Abstract

The utility model discloses a multi-connector valve body which comprises a valve body, a gear execution gas path gas outlet connector is integrated on the side face of one side of the valve body, and an execution gas path gas inlet connector is integrated on the side face, parallel to the gear execution gas path gas outlet connector, of the valve body. The end face of one end of the valve body is connected with a control gas path gas inlet connector. According to the multi-connector valve body, the multiple connectors are integrated on one valve body, integration of the multiple connectors is achieved, the number of valves needed in a gearbox and the installation space of connecting points are effectively reduced, the installation space large enough is reserved for installation of other parts, the complexity of parts connected to the outer wall of an auxiliary box is reduced, and the cost is reduced. Therefore, the complexity and leakage risk of a gas loop are greatly reduced, the workload of later maintenance is reduced, and the stability and safety of the whole system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of the air circuit valve body of a gearbox, and particularly belongs to a multi-joint valve body. Background Art

[0002] Most gearboxes adopt a main and auxiliary box structure, which is equivalent to two gearboxes connected in series. In a manual gearbox, the main box generally uses manual shifting, and the auxiliary box uses pneumatic shifting; pneumatic shifting is achieved by controlling the opening and closing of the air circuit connected to the auxiliary box.

[0003] The existing air circuit connected to the auxiliary box is formed by fixing a plurality of valve bodies and connectors on the outer wall of the auxiliary box, and then connecting the valve bodies and a plurality of independently installed connectors through wires to form an air circuit for pneumatic shifting. During the pneumatic shifting process, although the control valve body can achieve the opening of the corresponding air circuit to control the shifting of the auxiliary box, in this air circuit, it is necessary to install the valve body and a plurality of connectors on the outer wall of the auxiliary box, which occupies a large installation space on the outer wall of the auxiliary box, compresses the installation space of other components, and makes it necessary to connect a fixing frame on the outer wall of the auxiliary box for other components to be installed, resulting in a complex arrangement of components connected to the outer wall of the auxiliary box; at the same time, it is necessary to connect the plurality of connectors and the valve body through metal conduits, making the arrangement of metal conduits on the auxiliary box complex and not convenient for maintenance. Summary of the Utility Model

[0004] In order to solve the problems that the existing air circuit for pneumatic shifting provided on the auxiliary box is formed by independently installing a valve body and a plurality of connectors on the auxiliary box, resulting in a large occupation of the installation space on the auxiliary box, a complex arrangement of components connected to the outer wall of the auxiliary box, and inconvenience for maintenance, the utility model provides a multi-joint valve body.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model discloses a multi-joint valve body, which includes a valve body. On one side surface of the valve body, an air outlet joint for a gear position execution air circuit is integrated, and on the side surface of the valve body parallel to the connection of the air outlet joint for the gear position execution air circuit, an air inlet joint for an execution air circuit is integrated; on one end face of the valve body, a control air circuit air inlet joint is connected.

[0007] Preferably, the valve body includes a first valve body, on which the air outlet joint for the gear position execution air circuit and the air inlet joint for the execution air circuit are integrated. On one end face of the first valve body, a second valve body is connected, on which the control air circuit air inlet joint is connected. On the other end face of the first valve body, a third valve body is connected.

[0008] Preferably, the air outlet joint of the gear position execution air circuit includes a high - gear execution air circuit air outlet joint and a low - gear execution air circuit air outlet joint, and both the high - gear execution air circuit air outlet joint and the low - gear execution air circuit air outlet joint are integrated on the same side surface of the first valve body.

[0009] Preferably, a first connection hole is provided on the first valve body, a second connection hole is provided at a position corresponding to the first connection hole on the second valve body, and a third connection hole is provided at a position corresponding to the first connection hole on the third valve body; connecting pieces are installed in the corresponding first connection hole and the second connection hole, and the first connection hole and the third connection hole.

[0010] Preferably, the connecting piece is a fixing screw.

[0011] Preferably, a connection hole is provided on the second valve body, a control air circuit air inlet joint is connected to the connection hole, and a loosening prevention piece is installed in the connection hole.

[0012] Preferably, the loosening prevention piece is a lock nut.

[0013] Preferably, an air vent plug is provided on the first valve body at the side of the execution air circuit air inlet joint.

[0014] Preferably, a fixing hole is provided on the first valve body, and the fixing hole is used to fix the first valve body on the auxiliary box of the gearbox through a mounting screw.

[0015] Preferably, a gasket is provided between the third valve body and the first valve body, and between the first valve body and the second valve body.

[0016] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0017] The present utility model discloses a multi - joint valve body. By integrating multiple joints on one valve body, the integration of multiple joints is realized, effectively reducing the number of valves and the installation space of connection points required on the gearbox, reserving a large enough installation space for the installation of other components, reducing the complexity of the components connected to the outer wall of the auxiliary box, thus greatly reducing the complexity of the gas circuit and the leakage risk, and also reducing the workload of later maintenance, improving the stability and safety of the overall system.

[0018] Furthermore, in the multi - joint valve body proposed by the present utility model, through the combined form of dividing the valve body into a first valve body, a second valve body and a third valve body, it is convenient for cleaning and inspection of the valve body, ensuring the stability and reliability of long - term operation.

[0019] Furthermore, in the multi-connector valve body proposed by the present utility model, the high-grade actuator air path outlet connector and the low-grade actuator air path outlet connector are integrated on the same side surface of the first valve body, reducing the complexity of pipeline layout and facilitating operation and maintenance. The first valve body, the second valve body, and the third valve body are connected through precisely corresponding first, second, and third connection holes and fixing screws, ensuring the sealing and stability between the valve bodies and preventing loosening and leakage problems caused by vibration or impact.

[0020] Furthermore, in the multi-connector valve body proposed by the present utility model, a connection hole is added to the second valve body and connected to the control air path inlet connector, and a locknut is assembled as a loosening prevention component, effectively preventing the connector from loosening due to vibration or external force, ensuring the stable air supply of the control air path, enhancing the safety and reliability of the entire air path system. The vent plug provided on the first valve body facilitates the exhaust or detection of the actuator air path, enhancing the maintainability and fault diagnosis ability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 is one of the schematic structural diagrams of a multi-connector valve body provided by the present utility model;

[0022] Figure 2 FIG. 2 is another schematic structural diagram of a multi-connector valve body provided by the present utility model;

[0023] Figure 3 FIG. 3 is yet another schematic structural diagram of a multi-connector valve body provided by the present utility model;

[0024] Figure 4 FIG. 4 is still another schematic structural diagram of a multi-connector valve body provided by the present utility model;

[0025] Figure 5 FIG. 5 is another schematic structural diagram of a multi-connector valve body provided by the present utility model;

[0026] Figure 6 FIG. 6 is a schematic cross-sectional structure diagram of a multi-connector valve body provided by the present utility model;

[0027] In the drawings: 1. First valve body; 2. Second valve body; 3. Third valve body; 4. Connector; 5. High-grade actuator air path outlet connector; 6. Vent plug; 7. Actuator air path inlet connector; 8. Control air path inlet connector; 9. Loosening prevention component; 10. Fixing hole; 11. Low-grade actuator air path outlet connector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0031] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0033] The embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0034] Referring to Figures 1 to 6 , the present utility model provides a multi-joint valve body. The multi-joint valve body includes a valve body, which includes a first valve body 1, a second valve body 2, and a third valve body 3. The second valve body 2 is connected to the right end face of the first valve body 1, and the second valve body 2 and the first valve body 1 are fixed by a connecting member 4. A connection hole is provided on the right end face of the second valve body 2, and an internal thread is provided in the connection hole. A control air path inlet joint 8 is connected through the internal thread. The control air path inlet joint 8 is used to connect a control device. A loosening prevention member 9 is provided at the connection between the control air path inlet joint 8 and the connection hole. The control air path inlet joint 8 is stably fixed on the second valve body 2 through the loosening prevention member 9. The loosening prevention member 9 is a loosening prevention nut. The third valve body 3 is connected to the left end face of the first valve body 1, and the third valve body 3 and the first valve body 1 are also fixed by a connecting member 4. The connecting member 4 is a fixing screw. That is, a third installation hole is provided on the right end face of the third valve body 3. The left end of the third installation hole penetrates the left end face of the third valve body 3, and a second groove is provided at the end of the third valve body 3 where the third installation hole is located. A first installation hole is provided on the left end face of the first valve body 1 corresponding to the position of the third installation hole. The first installation hole and the third installation hole correspond to each other. A fixing screw is installed in the corresponding first installation hole and third installation hole together. The outer end of the fixing screw is located in the second groove. A second installation hole is provided on the left end face of the second valve body 2. One end of the second installation hole penetrates the right end face of the second valve body 2, and a first groove is provided at the end of the second valve body 2 where the second installation hole is located. The outer end of the first fixing screw is located in the first groove. A first installation hole is also provided on the right end face of the first valve body 1 corresponding to the position of the second installation hole. The first installation hole on the right end face of the first valve body 1 corresponds to the second installation hole. A fixing screw is also installed in the corresponding first installation hole and second installation hole, and the fixing screw can be disassembled, which is convenient for cleaning and maintenance inside the first valve body 1, the second valve body 2, and the third valve body 3.

[0035] Referring to Figures 1 to 6, on the end face of the first valve body 1, there are fixing holes 10, and the fixing holes 10 are used to fix the first valve body 1 on the auxiliary box of the gearbox through mounting screws; on the upper end face and the lower end face of the first valve body 1, there are integrated holes, and each integrated hole is fixedly connected with a joint. In this embodiment, there are 5 integrated holes. There are 2 integrated holes at the center position of the upper end face of the first valve body 1. Two, there are 2 integrated holes at the center position of the upper end face of the first valve body 1. There are 3 integrated holes at the center position of the lower end face of the first valve body 1. Among them, on the 2 integrated holes at the upper end of the first valve body 1, there are installed gear shifting execution air path outlet joints, and the gear shifting execution air path outlet joints are connected to the auxiliary box cylinder of the gearbox. The gear shifting execution air path outlet joints include a high gear execution air path outlet joint 5 and a low gear execution air path outlet joint 11. The high gear execution air path outlet joint 5 and the low gear execution air path outlet joint 11 are connected to the auxiliary box cylinder interface of the gearbox through metal pipelines. The high gear execution air path outlet joint 5 is installed in the integrated hole on the upper end face of the first valve body 1 close to the second valve body 2, and the low gear execution air path outlet joint 11 is installed in the integrated hole on the upper end face of the first valve body 1 close to the third valve body 3; in the integrated holes on the lower end face of the first valve body 1, there are installed air vent plugs 6 and execution air path inlet joints 7. The execution air path inlet joint 7 is connected to the air source through a pipeline, that is, the execution air path inlet joint 7 is installed in the integrated hole in the middle of the 3 integrated holes on the lower end face of the first valve body 1. The execution air path inlet joint 7 is used to connect the actuator. The air vent plugs 6 are installed in the integrated holes on both sides. Through the air vent plugs 6, the pressure balance in the valve body is maintained, the condensation and corrosion of the gas in the valve body are prevented, and the blockage and pollution in the valve body are prevented and different working conditions are adapted, so as to extend the service life of the valve body.

[0036] Preferably, sealing gaskets are provided between the third valve body 3 and the first valve body 1, and between the first valve body 1 and the second valve body 2. Through the sealing gaskets, the sealing performance between the third valve body 3 and the first valve body 1, and between the first valve body 1 and the second valve body 2 can be ensured.

[0037] When the multi-joint valve body works, the execution air path inlet joint 7 is supplied with air by the vehicle air source, and the control air path inlet joint 8 receives the signal of the cab air path switch, so that the spool in the first valve body 1 starts to act and opens the high gear execution air path outlet joint 5 and the low gear execution air path outlet joint 11 according to the signal. At this time, the execution air path acts, and the compressed air enters the auxiliary box cylinder of the gearbox through the execution air path inlet joint 7, passes through the channel in the first valve body 1, and via the high gear execution air path outlet joint 5 and the low gear execution air path outlet joint 11, to push the piston to perform high gear or low gear conversion. The excess gas is relieved through the air vent plug 6.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0039] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of the present utility model and cannot be used to limit the protection scope of the present utility model. Any modification made on the basis of the technical solution according to the technical idea proposed by the present utility model falls within the protection scope of the claims of the present utility model.

Claims

1. A multi-joint valve body, characterized in that, It includes a valve body. On one side surface of the valve body, an air outlet joint of the gear position execution air circuit is integrated. On the side surface of the valve body parallel to the air outlet joint connecting the gear position execution air circuit, an air inlet joint (7) of the execution air circuit is integrated; on one end face of the valve body, a control air circuit air inlet joint (8) is connected.

2. The multi-joint valve body according to claim 1, wherein The valve body includes a first valve body (1). The air outlet joint of the gear position execution air circuit and the air inlet joint (7) of the execution air circuit are integrated on the first valve body (1). On one end face of the first valve body (1), a second valve body (2) is connected. The control air circuit air inlet joint (8) is connected to the second valve body (2). On the other end face of the first valve body (1), a third valve body (3) is connected.

3. The multi-joint valve body according to claim 2, characterized in that, The air outlet joint of the gear position execution air circuit includes a high - gear execution air circuit air outlet joint (5) and a low - gear execution air circuit air outlet joint (11). The high - gear execution air circuit air outlet joint (5) and the low - gear execution air circuit air outlet joint (11) are both integrated on the same side surface of the first valve body (1).

4. A multi-connector valve body according to claim 2, characterized in that, A first connection hole is provided on the first valve body (1). At a position corresponding to the first connection hole on the second valve body (2), a second connection hole is provided. At a position corresponding to the first connection hole on the third valve body (3), a third connection hole is provided; connecting pieces (4) are installed in the corresponding first connection hole and the second connection hole, and the first connection hole and the third connection hole.

5. A multi-joint valve body according to claim 4, characterized in that, The connecting piece (4) is a fixing screw.

6. A multi-connector valve body according to claim 4, wherein, A connection hole is provided on the second valve body (2). The control air circuit air inlet joint (8) is connected to the connection hole, and a loosening - proof part (9) is installed in the connection hole.

7. A multi-connector valve body according to claim 6, wherein, The loosening - proof part (9) is a loosening - proof nut.

8. The multi-connector valve body according to claim 2, characterized in that, A vent plug (6) is provided on the first valve body (1) at the side of the air inlet joint (7) of the execution air circuit.

9. The multi-connector valve body according to claim 2, characterized in that, A fixing hole (10) is provided on the first valve body (1). The fixing hole (10) is used to fix the first valve body (1) on the auxiliary box of the gearbox through mounting screws.

10. A multi-joint valve body according to claim 2, characterized in that, Sealing gaskets are provided between the third valve body (3) and the first valve body (1), and between the first valve body (1) and the second valve body (2).

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