Stacked type combined one-way valve

Abstract

The utility model discloses a stacked type combined one-way valve which comprises a valve body, a valve hole, a sliding hole, a port A, a port B, a port AB, a port A1 and a port B1 are formed in the valve body, the port A and the port B are communicated with the port AB, the port B1 is communicated with the port AB through the sliding hole and the valve hole, and the sliding hole and the valve hole are communicated with each other. A one-way valve is installed in the sliding hole and the valve hole, and the flow direction of the one-way valve is from a port AB to a port B1. The one-way valve can be used for an executive component (a hydraulic impactor loop) stacked type combined one-way valve function, oil can flow out of the one-way valve B1 through oil flowing out of the one-way valve when the oil A and the oil B converge, the oil A1 flows back to the oil T, the performance of a hydraulic system is greatly improved, the structure is simplified, and the size and the fault rate of the whole hydraulic system are reduced. And meanwhile, a plurality of oil ports and oil return channels are arranged, so that subsequent use is greatly facilitated. In addition, the stacked combined one-way valve is designed into a stacked intelligent module, so that maintenance, installation and problem handling are very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a superimposed combined valve, in particular to a superimposed combined check valve. BACKGROUND

[0002] The superimposed valve is connected by the valve body itself, and no additional connecting body is needed. The superimposed valve of the same diameter. The size, position and number of the oil port and bolt hole are the same as those of the matched plate type reversing valve. As long as the superimposed valve of the same diameter is superimposed in a certain order, an electromagnetic valve or an electro-hydraulic reversing valve is added, and then the bolt is fixed, various typical hydraulic systems can be composed.

[0003] In the hydraulic impactor circuit, multiple oil paths need to be converged and matched with check valves, and then output, and multiple matched oil discharge paths are needed. At present, multiple root pipes and valve combinations are used. This way, the pipeline layout is complex, assembly and maintenance are troublesome, and the integration degree is poor and the volume is large.

[0004] To this end, how to design a superimposed combined check valve that is suitable for a hydraulic impactor circuit and has high integration degree, small volume and is convenient to combine with other valves is a technical problem to be solved at present. CONTENT OF THE UTILITY MODEL

[0005] In view of the above defects of the prior art, the technical problem to be solved by the utility model is to provide a superimposed combined check valve with high integration degree and small volume.

[0006] To achieve the above-mentioned purpose, the utility model provides a superimposed combined check valve, which comprises a valve body, the valve body is provided with a valve hole, a sliding hole, an A port, a B port, an AB port, an A1 port and a B1 port, the A port and the B port are communicated with the AB port, the B1 port is communicated with the AB port through the sliding hole and the valve hole, and the sliding hole and the valve hole are communicated with each other; a check valve is installed in the sliding hole and the valve hole, and the flow direction of the check valve is from the AB port to the B1 port.

[0007] As a further improvement of the present application, the check valve comprises a valve core and a valve core spring, the valve core is provided with a sealing surface and a communication groove, the communication groove penetrates the valve core along the axial direction of the valve core, and the sealing surface is tightly pressed against the valve hole; the two ends of the valve core spring are respectively pressed against the end faces of the valve core, the sliding hole and the B1 port.

[0008] As a further improvement of the present application, the A1 port has multiple openings and is communicated with each other.

[0009] As a further improvement of the present application, the B1 port has multiple openings and is communicated with each other.

[0010] As a further improvement of the application, the valve body is further provided with X port, Y port, T port, T1 port, L port and P port, wherein the L port, P port, X port and Y port all penetrate the valve body; the T1 port is communicated with the A1 port, and the A1 port is further communicated with the T port.

[0011] As a further improvement of the application, the valve body is further provided with a plurality of penetrating mounting holes, and the valve body is further provided with a locking groove and a clamping groove at the mounting holes, wherein a clamping and locking assembly is mounted in the locking groove and the clamping groove, and the clamping and locking assembly comprises an end plate, a screw rod, a locking rack, a locking seat and a sliding rail, the end plate is connected and assembled with the locking seat through a connecting plate, the sliding rail is mounted on the locking seat, and the locking rack is provided with a locking rack sliding groove and a half slot, and the locking rack sliding groove is engaged and slidingly assembled with the sliding rail.

[0012] Two locking racks are respectively assembled with two ends of the cable, the cable penetrates the shaft groove, and the shaft groove is arranged on the screw rod, and the screw rod is threadedly and rotatably assembled with the end plate and the locking seat and can penetrate the locking seat.

[0013] As a further improvement of the application, the locking seat is slidingly and clampingly mounted in the locking groove, and one end of the locking seat is assembled or pressed with the locking seat spring, and the other end of the locking seat spring is pressed or assembled with the inner wall of the locking groove; the locking rack and the connecting plate are clampingly and movably mounted in the clamping groove.

[0014] As a further improvement of the application, the connecting rod is further provided, and at least one end of the connecting rod is provided with a connecting head, wherein the diameter of the connecting head is larger than that of the connecting rod; the connecting head is pulled towards the screw rod through the corresponding locking rack, and the half slot is sleeved on the connecting rod and the connecting head cannot penetrate the half slot; two adjacent superimposed valves are assembled and fixed through the connecting rod.

[0015] As a further improvement of the application, one end of the locking rack is assembled with the elastic band, and the other end of the elastic band is assembled with the fixing seat, the fixing seat is mounted on the locking seat, and the elastic band has elasticity and exerts an elastic force on the locking rack away from the screw rod, so that the two locking racks are in the most distant state in the initial state.

[0016] As a further improvement of the application, the end of the screw rod away from the locking seat is provided with a hexagonal prism after penetrating the end plate.

[0017] The application has the following beneficial effects:

[0018] The application can be used for a superimposed combined check valve function of an execution element (hydraulic impactor circuit), and can realize that the AB confluence can supply oil through the check valve to flow out of the B1, realize that the A1 oil flows back to the T oil return, greatly improve the performance of the hydraulic system, simplify the structure, and reduce the volume and failure rate of the whole hydraulic system. Meanwhile, a plurality of oil ports and oil return channels are arranged to greatly facilitate subsequent use. In addition, the superimposed combined check valve is designed as a superimposed intelligent module, and it is very convenient to overhaul, install and handle problems.

[0019] The utility model also adopts the cooperation of connecting rod and locking assembly, thereby can install through the mode of traditional long screw rod through mounting hole connecting multiple stacked valves, can also adopt the mode of locking assembly and connector cooperation to connect adjacent stacked valves one by one, convenient and flexible to use, and also solve the problem that traditional long screw rod connection mode cannot adapt to different number of stacked valve connection. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure diagram of the utility model Figure One ;

[0021] Figure 2 It is the structure diagram of the utility model Figure Two ;

[0022] Figure 3 It is the structure diagram of the utility model Figure Three ;

[0023] Figure 4 It is the utility model located at the section view of mixed flow passage AB axis center surface;

[0024] Figure 5 It is the utility model located at the section view of screw rod 410 axis center surface;

[0025] Figure 6 It is the structure diagram of the utility model after removing locking assembly 400 Figure One ;

[0026] Figure 7 It is the structure diagram of the utility model after removing locking assembly 400 Figure Two ;

[0027] Figure 8 It is the structure diagram of locking assembly 400 Figure One ;

[0028] Figure 9 It is the structure diagram of locking assembly 400 Figure One ;

[0029] Figure 10 It is the partial structure diagram of locking assembly 400 Figure One ;

[0030] Figure 11 It is the partial structure diagram of locking assembly 400 Figure Two ;

[0031] Figure 12 It is the partial structure diagram of locking assembly 400 Figure Three ;

[0032] Figure 13Figure 1 is a partial structure diagram of the latching assembly 400 Figure Four ;

[0033] Figure 14 Figure 1 is a partial structure diagram of the latching assembly 400 DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model.

[0035] Referring to Figures 1-7 、 Figure 14 The superimposed combined check valve comprises a valve body 100, the valve body 100 is provided with a valve hole 101, a sliding hole 102, an A port, a B port, an AB port, an A1 port, a B1 port, an X port, a Y port, a T port, a T1 port, an L port and a P port, the A port and the B port are communicated with the AB port, the B1 port has a plurality of ports and is communicated with each other, the B1 port and the AB port are communicated through the sliding hole 102 and the valve hole 101, and the sliding hole 102 and the valve hole 101 are communicated with each other.

[0036] The check valve is installed in the sliding hole 102 and the valve hole 101, the flow direction of the check valve is from the AB port to the B1 port, the check valve comprises a valve core 210 and a valve core spring 220, the valve core 210 is provided with a sealing surface 211 and a communication groove 212, the communication groove 212 penetrates the valve core 210 along the axial direction of the valve core 210, and the sealing surface 211 is tightly attached to the valve hole 101.

[0037] The two ends of the valve core spring 220 are respectively connected with the end surface of the valve core 210, the sliding hole 102 and the B1 port, so that the elastic force of the valve core spring 220 is applied to the sliding hole 102.

[0038] The A1 port has a plurality of openings and is communicated with each other, the T1 port is communicated with the A1 port, the A1 port is also communicated with the T port, and the L port, the P port, the X port and the Y port all penetrate the valve body 100, and the hydraulic pipeline or passage is connected through the L port, the P port, the X port and the Y port in use.

[0039] Referring to Figures 1-13The valve body 100 is further provided with a plurality of mounting holes 103, and the valve body 100 is provided with a locking groove 104 and a clamping groove 105 at the mounting holes 103, and a locking assembly 400 is installed in the locking groove 104 and the clamping groove 105, the locking assembly 400 comprises an end plate 490, a screw rod 410, a locking rack 420, a locking seat 440, and a sliding rail 450, the end plate 490 is connected and assembled with the locking seat 440 through a connecting plate 491, the sliding rail 450 is installed on the locking seat 440, the locking rack 420 is provided with a locking rack sliding groove 421 and a half groove 422, the locking rack sliding groove 421 is assembled with the sliding rail 450 in a clamping and sliding manner, one end of the locking rack 420 is assembled with an elastic band 470, the other end of the elastic band 470 is assembled and fixed with a fixing seat 480, the fixing seat 480 is installed on the locking seat 440, the elastic band 470 has elasticity, and the elastic band 470 applies an elastic force to the locking rack 420 away from the screw rod 410, so that the two locking racks 420 are in the most distant state in an initial state.

[0040] The two locking racks 420 are respectively assembled with two ends of a cable 430, the cable 430 passes through an axle groove 412 provided on the screw rod 410, the screw rod 410 is assembled with the end plate 490 and the locking seat 440 in a threaded and screwed manner and can pass through the locking seat 440, and the screw rod 410 is provided with a hexagonal prism 411 after passing out of the end plate 490 away from the locking seat 440. In use, the cable 430 can be wound by rotating the screw rod 410 to pull the two locking racks 420 close to each other, and since the screw rod 410 is assembled with the end plate 490 and the locking seat 440 in a threaded and screwed manner, the screw rod is not easy to be reversed to release the cable 430, so as to keep the two locking racks 420 in a tensioned state.

[0041] The locking seat 440 is assembled and slidably installed in the locking groove 104, and the locking seat 440 is assembled or pressed with one end of a locking seat spring 460, and the other end of the locking seat spring 460 is pressed or assembled with the inner wall of the locking groove 104, so as to apply an elastic force to the locking seat 440 to push the locking seat 440 to the clamping groove 105 or to resist the movement of the locking seat 440 away from the clamping groove 105.

[0042] The locking rack 420 and the connecting plate 491 are clamped and movably installed in the clamping groove 105, so as to guide the sliding of the locking rack 420 and the connecting plate 491.

[0043] When multiple valves need to be stacked, a connecting rod 310 can be used, and a connecting head 320 is arranged on at least one end of the connecting rod 310, and the diameter of the connecting head 320 is larger than that of the connecting rod 310. In use, first, the end plate 490 is pushed to drive the lock seat 440 to press the lock seat spring 460, so that the half slot 422 of the lock frame 420 does not hinder the passing of the connecting head 320, then the connecting rod 310 is arranged with one end of the connecting head 320 inserted into the mounting hole 103, so that the connecting head 320 is located between the two lock frames 420, and then the lock seat 440 is released, and the lock seat spring 460 pushes the lock seat 440 to move until the half slot 422 is sleeved outside the connecting rod 310 and the connecting head 320 cannot pass through the half slot 422. Then the screw rod 410 is rotated, the screw rod 410 winds the cable 430 to pull the two lock frames 420 close to each other to tighten the connecting rod 310, and the end of the connecting rod 310 away from the mounting hole 103 can pass through the hole of another stacked valve and then be assembled with a nut to realize the fixation of the two stacked valves, or the other end of the connecting rod is also arranged with a connecting head, and the other stacked valve is arranged with a locking assembly 400, and the two stacked valves are assembled and fixed by locking the connecting heads through the two locking assemblies.

[0044] Compared with the traditional installation method of passing a long screw rod through the mounting hole 103 of each stacked valve and then pressing the nut on the stacked valve to realize the installation, the design has higher flexibility. First, it can also be applied to connecting multiple stacked valves through a long screw rod passing through the mounting hole 103. Second, when the number of stacked valves needs to be flexibly adjusted, the locking assembly can be used in cooperation with the connecting head to directly cancel the long screw rod and realize the assembly and fixation between the two stacked valves, which is more convenient and flexible to use, and also solves the problem that the long screw rod is difficult to adapt to the connection of stacked valves with different numbers. When disassembly is needed, only the screw rod 410 needs to be reversed, the elastic band 470 pulls the corresponding lock frame 420 away from the connecting head to loosen, and then the end plate 490 is pressed to realize that the lock frame 420 does not hinder the passing of the connecting head, and then the connecting rod 310 can be pulled out, which is very convenient.

[0045] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meanings understood by the skilled person in the field to which the present application belongs.

[0046] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0048] In the present application, the circumferentially rotatable assembly is a connecting assembly that can rotate relative to each other, such as through a bearing assembly; the circumferentially rotatable and axially immovable assembly is an assembly that can rotate relative to each other, but cannot move axially, such as installing shaft clamps on both sides of the shaft and the mounting device to prevent the shaft from moving axially; the circumferentially rotatable and axially movable assembly is a movable assembly, such as a shaft assembly through a shaft hole; the circumferentially immovable and axially movable assembly can be a spline groove and spline assembly.

[0049] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0051] The above is only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any changes or replacements within the technical scope disclosed by the present application can be easily thought of by those skilled in the art, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A stacked combination check valve characterized by: The valve includes a valve body, which is provided with a valve hole, a sliding hole, port A, port B, port AB, port A1, and port B1. Ports A and B are connected to port AB, and port B1 is connected to port AB through the sliding hole and the valve hole. The sliding hole and the valve hole are interconnected. A one-way valve is installed in the sliding hole and the valve hole, and the flow direction of the one-way valve is from port AB to port B1.

2. The superposed combination check valve according to claim 1, characterized in that: The one-way valve includes a valve core and a valve core spring. The valve core is provided with a sealing surface and a connecting groove. The connecting groove passes through the valve core along the valve core axis. The sealing surface is pressed tightly against the valve hole for sealing. The two ends of the valve core spring are respectively pressed against the end faces connected to the valve core, the sliding hole, and the B1 port.

3. The superposed combination check valve according to claim 1, characterized in that: The A1 port has multiple openings that are interconnected.

4. The superposed combination check valve according to claim 1, characterized in that: There are multiple B1 ports that are interconnected.

5. The superposed combination check valve according to claim 1, characterized in that: The valve body is also provided with X port, Y port, T port, T1 port, L port and P port, and the L port, P port, X port and Y port all penetrate the valve body; the T1 port is connected to the A1 port, and the A1 port is also connected to the T port.

6. The stacked combination check valve according to any one of claims 1-5, characterized in that: The valve body is also provided with multiple through mounting holes. The valve body is also provided with locking grooves and slots at the mounting holes. Locking assemblies are installed in the locking grooves and slots. The locking assembly includes an end plate, a screw, a lock frame, a lock seat, and a slide rail. The end plate is connected and assembled to the lock seat through a connecting plate. The slide rail is installed on the lock seat. The lock frame is provided with a lock frame sliding groove and a half groove. The lock frame sliding groove engages with the slide rail and is slidably assembled. Two lock frames are respectively assembled with the two ends of the cable. The cable passes through the shaft groove, which is set on the screw. The screw is assembled with the end plate and the lock seat by thread and can pass through the lock seat.

7. The superposed combination check valve according to claim 6, characterized in that: The lock seat is engaged and slidably installed in the lock groove, and one end of the lock seat spring is assembled or pressed against the lock seat spring, while the other end of the lock seat spring is pressed against or assembled with the inner wall of the lock groove; the lock frame and the connecting plate are both engaged and movably installed in the slot.

8. The superposed combination check valve according to claim 6, characterized in that: It also includes a connecting rod, at least one end of which is provided with a connector, the diameter of which is larger than that of the connecting rod; the connector is tightened to the screw by a corresponding locking bracket, the semi-groove is fitted outside the connecting rod and the connector cannot pass through the semi-groove; two adjacent stacked valves are assembled and fixed together by the connecting rod.

9. The superposed combination check valve according to claim 6, characterized in that: The lock frame is assembled with one end of the elastic band, and the other end of the elastic band is assembled and fixed with the fixed seat. The fixed seat is installed on the lock seat. The elastic band is elastic and applies a spring force to the lock frame away from the screw so that the two lock frames are in the most distant state in the initial state.

10. The superposed combination check valve according to claim 6, characterized in that: A hexagonal prism is installed at the end of the screw that is away from the lock seat after it passes through the end plate.

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