Improved plate-type hand-operated direction valve convenient to assemble
The board-type manual directional control valve addresses assembly complexity and accidental manipulation issues by using screw-threaded installation and a stabilizing mechanism, ensuring reliable and secure operation.
Patent Information
- Application Number
- CN202422364571.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The casting parts of existing manual reversing valves are in high demand, the CNC processing is difficult, and the joysticks are long and easy to touch by mistake, so as to improve assembly convenience and seal reliability.
The screw-blocking thread installation structure is adopted, combined with the universal solenoid valve core and the stabilization mechanism, the control cover isolates high-pressure oil through the groove ring, and a stability mechanism is installed to position the joystick to prevent accidental collision.
A convenient and reliable assembly process is achieved, sealing and stability of joysticks are improved, and accidental collisions are avoided.
Smart Images
Figure CN223105338U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic machinery, and particularly relates to an improved plate-type manual reversing valve which is convenient for assembly. Background Technique
[0002] A reversing valve is a direction control valve with more than two flow forms and more than two oil ports. It is a valve that realizes the communication, cut-off and reversal of hydraulic oil flow, as well as pressure unloading and sequence action control. It is a direction control valve relying on the relative movement of the spool and the valve body. Most of the existing manual reversing valves are screw installation structures, and the operating cover is a casting, which requires a large number of castings and has a high CNC processing difficulty. Moreover, the operating handle is relatively long and is easily touched by mistake when exposed, so improvement is needed. Content of the Utility Model
[0003] The purpose of the utility model is to provide an improved plate-type manual reversing valve which is convenient for assembly, so as to solve the problems put forward in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical scheme: An improved plate-type manual reversing valve which is convenient for assembly, including a valve body, the valve body is connected with an operating cover, a cavity is arranged in the valve body, two oil inlets connected with the cavity are arranged at the bottom of the valve body, the cavity is connected with a plurality of external interfaces, a sliding spool is movably arranged in the cavity, a step is arranged on the sliding spool, the two ends of the valve body are respectively connected with an operating cover and a plug, a first return spring and a second return spring are arranged inside the operating cover and the plug, an inner cavity is arranged inside the operating cover, a driving block is arranged in the inner cavity, a control rod is connected to the driving block, a push rod is connected to the side wall of the driving block, and a stabilizing mechanism is connected to the control rod.
[0005] Preferably, five external interfaces are provided, and each external interface is connected to an external pipeline.
[0006] Preferably, the control rod is rotatably installed through a positioning rotating shaft, and a convex column is arranged at the bottom of the control rod, and the convex column is inserted into a groove on the driving block.
[0007] Preferably, the stabilizing mechanism includes a connecting piece, a chute is arranged on the control rod, the connecting piece is in a "C" shape, one end of the connecting piece is slidably arranged in the chute, the other end of the connecting piece is connected with a positioning plate, a positioning hole is arranged on the positioning plate, a fixed vertical plate is arranged on the valve body or the operating cover, a plugging groove is arranged on the fixed vertical plate, the positioning plate is inserted into the plugging groove, a cavity is arranged in the upper part of the fixed vertical plate, a positioning guide post is movably inserted into the cavity, the bottom end of the positioning guide post is inserted into the positioning hole, a pressing plate is arranged on the positioning guide post, and a pressing spring is connected to the upper end of the pressing plate.
[0008] Preferably, three positioning holes are provided, which respectively correspond to the three states of the joystick tilting left, vertical, and tilting right.
[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0010] An improved plate-type manual reversing valve that is convenient for assembly proposed by the present utility model. The plug is installed by threading, with convenient and reliable installation. It uses a general solenoid valve body and spool structure, with a reliable structure. The operating cover isolates high-pressure oil and the operating part through a grooved ring, with reliable sealing. A stabilizing mechanism is provided to position and fix the joystick, preventing accidental touch. Description of the Drawings
[0011] Figure 1 It is a schematic structural diagram of the device of the present utility model.
[0012] In the figure: valve body 1, sliding spool 2, step 201, push rod 3, first return spring 4, second return spring 5, plug 6, joystick 7, chute 701, positioning rotating shaft 8, operating cover 9, driving block 901, oil inlet 10, external interface 11, connecting piece 12, positioning plate 13, positioning hole 1301, fixed vertical plate 14, insertion slot 1401, positioning guide post 1402, pressing plate 1403, pressing spring 1404. Detailed Embodiment
[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0014] Please refer to Figure 1 , the present utility model provides a technical solution: an improved plate-type manual reversing valve that is convenient for assembly, including a valve body 1. The valve body 1 is connected to an operating cover 9. A cavity is provided inside the valve body 1. Two oil inlets 10 connected to the cavity are provided at the bottom of the valve body 1. The cavity is connected to several external interfaces 11. There are five external interfaces 11, and each external interface 11 is connected to an external pipeline. The five external interfaces 11 are respectively two T interfaces, and the A, B, and P interfaces.
[0015] A sliding valve core 2 is movably arranged in the cavity, and a general solenoid valve body valve core structure is used. A step 201 is arranged on the sliding valve core 2. An operating cover 9 and a screw plug 6 are respectively connected to the two ends of the valve body 1. A first return spring 4 and a second return spring 5 are arranged inside the operating cover 9 and the screw plug 6. The first return spring 4 and the second return spring 5 keep the sliding valve core 2 in a symmetrical middle position. The operating cover 9 isolates the high-pressure oil and the operating part through a groove ring, and the seal is reliable. An inner cavity is arranged inside the operating cover 9, and a driving block 901 is arranged in the inner cavity. A joystick 7 is connected to the driving block 901, and the joystick 7 is rotatably installed through a positioning shaft 8. A boss is arranged at the bottom of the joystick 7, and the boss is inserted into the groove on the driving block 901. A push rod 3 is connected to the side wall of the driving block 901.
[0016] The joystick 7 is connected to a stabilizing mechanism, which includes a connecting member 12. A slide groove 701 is provided on the joystick 7. The connecting member 12 is a "匚"-shaped structure. One end of the connecting member 12 is slidably provided with a slide groove 701. The other end of the connecting member 12 is connected to a positioning plate 13. A positioning hole 1301 is provided on the positioning plate 13. There are three positioning holes 1301. The three positioning holes 1301 correspond to the three states of the joystick 7: left tilt, vertical tilt and right tilt. A fixed vertical plate 14 is provided on the valve body 1 or the operating cover 9, and a plug-in groove 1401 is opened on the fixed vertical plate 14, and the positioning plate 13 is plugged into the plug-in groove 1401. A cavity is provided on the upper part of the fixed vertical plate 14, and a positioning guide column 1402 is movably plugged into the cavity. The bottom end of the positioning guide column 1402 is plugged into the positioning hole 1301, and a clamping plate 1403 is provided on the positioning guide column 1402, and a clamping spring 1404 is connected to the upper end of the clamping plate 1403.
[0017] In actual use, by moving the joystick 7 to the left or right, and then adjusting the driving block 901 to drive the push rod 3 to move, the sliding valve core 2 can be pushed to move inside the valve body 1, and the interval state between different external interfaces 11 is blocked by the step 201, and the connection state of the external interface 11 is changed, thereby changing the direction of the liquid flow, which is more convenient to control. For example, when the joystick 7 is moved to the left, the push rod 3 can push the sliding valve core 2 to the right, and when the joystick 7 is moved to the right, the sliding valve core 2 can be pushed to the left by the second return spring 5; because a stabilizing mechanism is provided, when adjusting and moving the joystick 7, the positioning guide column 1402 needs to be pulled upward so that the bottom end of the positioning guide column 1402 is pulled out of the positioning hole 1301, and the joystick 7 can be moved to the desired position, and then under the elastic force of the clamping spring 1404, the clamping plate 1403 is pressed downward, so that the bottom end of the positioning guide column 1402 is inserted into the corresponding positioning hole 1301, so that the joystick 7 is fixed and will not move arbitrarily to change the direction of the liquid flow.
[0018] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An improved plate-type manual reversing valve that is convenient for assembly, comprising a valve body (1), characterized in that: The valve body (1) is connected to the control cover (9). A cavity is provided inside the valve body (1). Two oil inlets (10) connected to the cavity are provided at the bottom of the valve body (1). The cavity is connected to a plurality of external interfaces (11). A spool valve (2) is movably arranged in the cavity. A step (201) is provided on the spool valve (2). The two ends of the valve body (1) are respectively connected to the control cover (9) and the plug (6). A first return spring (4) and a second return spring (5) are provided inside the control cover (9) and the plug (6). An inner cavity is provided inside the control cover (9). A driving block (901) is arranged in the inner cavity. A control rod (7) is connected to the driving block (901). A push rod (3) is connected to the side wall of the driving block (901). The control rod (7) is connected with a stabilizing mechanism.
2. An improved plate-type manual reversing valve convenient for assembly according to claim 1, characterized in that: There are five external interfaces (11), and each external interface (11) is connected to an external pipeline.
3. An improved plate-type manual reversing valve that is easy to assemble according to claim 1, characterized in that: The control rod (7) is rotatably installed through a positioning rotating shaft (8). A convex column is provided at the bottom of the control rod (7), and the convex column is inserted into a groove on the driving block (901).
4. An improved plate-type manual reversing valve convenient for assembly according to claim 1, characterized in that: The stabilizing mechanism includes a connecting member (12). A sliding groove (701) is formed on the control rod (7). The connecting member (12) is of a "C" - shaped structure. One end of the connecting member (12) is slidably arranged in the sliding groove (701). The other end of the connecting member (12) is connected to a positioning plate (13). A positioning hole (1301) is formed on the positioning plate (13). A fixed vertical plate (14) is provided on the valve body (1) or the control cover (9). A plugging groove (1401) is formed on the fixed vertical plate (14). The positioning plate (13) is inserted into the plugging groove (1401). A cavity is provided in the upper part of the fixed vertical plate (14). A positioning guide post (1402) is movably inserted into the cavity. The bottom end of the positioning guide post (1402) is inserted into the positioning hole (1301). A pressing plate (1403) is provided on the positioning guide post (1402). The upper end of the pressing plate (1403) is connected to a pressing spring (1404).
5. An improved plate-type manual reversing valve that is convenient for assembly according to claim 4, characterized in that: There are three positioning holes (1301), and the three positioning holes (1301) respectively correspond to three states of the control rod (7) tilting to the left, being vertical, and tilting to the right.