Stable locking hydraulic valve

Abstract

The utility model is applied to the field of hydraulic valves, in particular to a stable locking hydraulic valve, which comprises a valve body and a valve core component, a valve core is clamped on the inner wall of the valve body in a circulation cavity, the valve body is provided with a locking pin, two sides of a connecting boss are provided with first bayonets, the two first bayonets are communicated with each other, a valve rod ring is provided with an adjusting through hole, and the adjusting through hole is communicated with the locking pin. The locking pin penetrates through the adjusting through holes and the two first clamping buckles and is in pin joint with the valve rod and the connecting boss, and when the valve element assembly is used, the valve element assembly is rotated, the adjusting through holes are communicated with the two first clamping openings, the locking pin is inserted, locking of the valve element assembly and rotation of the valve element are achieved, and therefore the valve element assembly is locked. The flow section of the circulation cavity is changed, the function of adjusting the internal flow of the circulation cavity is achieved, the locking pin is connected to the valve rod and the connecting boss in a pin joint mode, and the locking stability of the check valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic technology field, concretely is a kind of stable locking hydraulic valve. BACKGROUND

[0002] Hydraulic valve includes flow valve, pressure valve and direction valve, flow valve is mainly used to control the flow of liquid, flow valve includes throttle valve, speed regulating valve, shunt and collecting valve etc., flow valve passes through rotating valve core assembly, and realizes the flow of liquid, throttle valve controls fluid velocity by changing throttle section or throttle length.

[0003] But the throttle valve of prior art is not convenient for the locking of valve core assembly, causes the disadvantage in use, valve core assembly cannot be stably locked, liquid impact causes valve core assembly to be active, thereby causing unnecessary waste, increase cost, reduce economic benefits. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of stable locking hydraulic valve, to solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of stable locking hydraulic valve, including valve body and valve core assembly, the valve body is provided with locking pin, the outer periphery of the valve body is provided with connecting boss, the connecting boss is opened with communicating groove, the inside of the valve body is opened with flow-through cavity, the valve core assembly includes rotating block, valve rod and valve core, one end of the valve rod is fixedly connected to one end of valve core through communicating groove, the valve core is clamped in the inner wall of flow-through cavity of valve body, the other end of the valve rod is fixedly connected to rotating block, the both sides of the connecting boss are opened with first clamping port, and two first clamping ports are communicated, the valve rod is ringed with adjusting through-hole, the locking pin passes through two first buckles and adjusting through-hole, and locking pin is connected to valve rod and connecting boss, the number of adjusting through-hole is at least three.

[0006] Preferably, the valve body is opened with first installation groove, the outer ring of waterproof bearing is fixedly arranged in the first installation groove, and the outer ring of waterproof bearing and the inner wall of the first installation groove of valve body are sealingly connected.

[0007] Preferably, the thickness of the valve core is greater than the diameter of the communicating groove, and one end of the valve core and one end of the valve body in the communicating groove are sealingly connected.

[0008] Preferably, when the valve core is closed, the outer periphery of the valve core and the inside of the valve body are sealingly connected.

[0009] Preferably, one end of the locking pin is provided with a movable end for adjusting the movement of the locking pin.

[0010] Preferably, the locking pin is made of alloy steel.

[0011] Preferably, the valve rod is sealingly connected to the inner ring of the waterproof bearing.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. A stable locking hydraulic valve, comprising a valve body and a valve core assembly, the valve body is provided with a locking pin, the outer periphery of the valve body is provided with a connecting boss, the connecting boss is provided with a communication groove, the inside of the valve body is provided with a flow-through cavity, the valve core assembly comprises a rotating block, a valve rod and a valve core, one end of the valve rod is fixedly connected to one end of the valve core through the communication groove, the valve core is clamped to the inner wall of the flow-through cavity of the valve body, the other end of the valve rod is fixedly connected to the rotating block, the two sides of the connecting boss are both provided with a first clamping hole, the two first clamping holes are communicated, the valve rod is provided with an adjusting through hole, the locking pin passes through the adjusting through hole and the two first clamping holes, and the locking pin is connected to the valve rod and the connecting boss, the number of the adjusting through holes is at least three, in use, the valve core assembly is rotated, the adjusting through hole and the two first clamping holes are communicated, the locking pin is inserted, the locking of the valve core assembly is realized, the valve core is rotated, the flow cross section of the flow-through cavity is changed, the internal flow of the flow-through cavity is adjusted, and the stability of the locking of the utility model is improved through the connection of the locking pin to the valve rod and the connecting boss. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole internal structure schematic view of the utility model;

[0015] Figure 2 It is a whole structure schematic view of the valve core assembly of the utility model;

[0016] In the drawing: valve body 1, flow-through cavity 10, first clamping hole 11, first arranging groove 12, waterproof bearing 13, communication groove 14, sealing ring 15, valve core assembly 2, rotating block 20, valve rod 21, adjusting through hole 210, valve core 22, locking pin 3, movable end 30. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figures 1 to 2 As shown, this embodiment discloses a stable locking hydraulic valve, including a valve body 1 and a valve core assembly 2. The valve body 1 is provided with a locking pin 3, and a connecting boss is protruding from the outer periphery of the valve body 1. The connecting boss has a communicating groove 14. A flow cavity 10 is formed inside the valve body 1. The valve core assembly 2 includes a rotating block 20, a valve stem 21, and a valve core 22. One end of the valve stem 21 passes through the communicating groove 14 and is fixedly connected to one end of the valve core 22. The valve core 22 is clamped in the inner wall of the valve body 1 located in the flow cavity 10. The other end of the valve stem 21 is fixedly connected to the rotating block 20. First latches 11 are formed on both sides of the connecting boss, and the two first latches... The valve stem 21 is connected to the valve core assembly 21. The valve core assembly 21 is provided with an adjustment through hole 210. The locking pin 3 passes through the two first bayonet 11 and the adjustment through hole 210, and the locking pin 3 is pinned to the valve stem 21 and the connecting boss. The number of adjustment through holes 210 is at least three. In use, the valve core assembly 2 is rotated to connect the adjustment through hole 210 and the two first bayonet 11. The locking pin 3 is inserted to lock the valve core assembly 2. The valve core 22 rotates to change the flow cross section of the flow cavity 10 and realize the function of regulating the internal flow of the flow cavity 10. The locking pin 3 is pinned to the valve stem 21 and the connecting boss, which improves the locking stability of the present invention.

[0021] Further, the valve body 1 is provided with a first installation groove 12, the outer ring of a waterproof bearing 13 is fixedly arranged in the first installation groove 12, the waterproof bearing 13 is sealingly connected with the inner wall of the first installation groove 12 of the valve body 1, further, the valve rod 21 is sealingly connected with the inner ring of the waterproof bearing 13, the rotation resistance of the valve rod 21 of the utility model is reduced by the connection of the valve rod 21 and the inner ring of the waterproof bearing 13, further, the inner ring and the outer ring of the waterproof bearing are sealingly connected with the valve rod 21 and the inner wall of the first installation groove 12 of the valve body 1 respectively, the sealing property between the valve rod 21 and the valve body 1 of the utility model is improved.

[0022] Further, the thickness of the valve core 22 is greater than the diameter of the communication groove 14, and one end of the valve core 22 is sealingly connected with one end of the valve body 1 located in the communication groove 14, the air tightness between the communication groove 14 and the valve core 22 of the utility model is improved by the sealing connection of one end of the valve core 22 and one end of the valve body 1 located in the communication groove 14, so that the liquid is prevented from flowing out through the first clamping hole 11 and the adjusting through hole 210, and the leakage of the liquid is reduced.

[0023] Further, when the valve core 22 is closed, the outer periphery of the valve core 22 is sealingly connected with the inside of the valve body 1, the circulation of the liquid is prevented when the valve core 22 is closed by the sealing connection of the valve core 22 and the valve body 1.

[0024] Further, the one end of the locking pin 3 is provided with a movable end 30 for facilitating the adjustment and movement of the locking pin 3, the convenience of the movement of the locking pin 3 of the utility model is improved by pulling the movable end 30.

[0025] Further, the locking pin 3 is made of alloy steel, the service life of the locking pin 3 of the utility model is improved by the good hardness and wear resistance of the steel alloy itself.

[0026] Further, the valve rod 21 and the communication groove 14 are sealingly connected through a sealing ring 15, the leakage of the liquid is reduced by the sealing connection of the valve rod 21 and the communication groove 14.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A stable lock hydraulic valve comprising a valve body and a spool assembly, characterized by: The valve body is provided with a locking pin, the outer periphery of the valve body is provided with a connecting boss, the connecting boss is provided with a communication groove, the inside of the valve body is provided with a flow cavity, the valve core assembly comprises a rotating block, a valve rod and a valve core, one end of the valve rod is fixedly connected to one end of the valve core through the communication groove, the valve core is clamped to the inner wall of the flow cavity of the valve body, the other end of the valve rod is fixedly connected to the rotating block, the two sides of the connecting boss are both provided with a first clamping hole, and the two first clamping holes are communicated, the valve rod is provided with an adjusting through hole, the locking pin passes through the two first clamping holes and the adjusting through hole, and the locking pin is connected to the valve rod and the connecting boss, and the number of the adjusting through holes is at least three.

2. A stable lock hydraulic valve according to claim 1, characterized in that: The valve body is provided with a first installation groove, and the outer ring of the waterproof bearing is fixedly arranged in the first installation groove, and the outer ring of the waterproof bearing and the inner wall of the first installation groove of the valve body are in sealing connection.

3. The stable lockup hydraulic valve according to claim 1, characterized by: The thickness of the valve core is greater than the diameter of the communication groove, and one end of the valve core is in sealing connection with one end of the valve body in the communication groove.

4. The stable lockup hydraulic valve according to claim 1, characterized by: When the valve core is closed, the outer periphery of the valve core is in sealing connection with the inside of the valve body.

5. The stable lockup hydraulic valve according to claim 1, characterized by: One end of the locking pin is provided with a movable end for facilitating the adjustment of the locking pin.

6. The stable lockup hydraulic valve according to claim 1, characterized by: The locking pin is made of alloy steel.

7. The stable lockup hydraulic valve according to claim 1, characterized by: The valve rod and the communication groove are in sealing connection through a sealing ring.

8. The stable lockup hydraulic valve according to claim 1, characterized by: The valve rod is in sealing connection with the inner ring of the waterproof bearing.

Images