Hydraulic valve

Abstract

The utility model discloses a hydraulic valve which comprises a valve body, a valve core and a hydraulic assembly, and a flow channel for fluid to flow through is formed in the valve body. The valve element is rotationally arranged in the flow channel. The hydraulic assembly comprises a fixed shell, a rotating shaft and a rotating piece, the fixed shell is connected with the valve body and provided with a first fluid channel and a second fluid channel which are communicated with the interior, the rotating shaft is connected with the valve element and rotatably extends into the fixed shell, and the rotating piece is connected with the rotating shaft and divides the inner space of the fixed shell into two cavities; the two cavities are communicated with the first fluid channel and the second fluid channel respectively. According to the utility model, the opening and closing of a large-pressure large flow channel can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a hydraulic valve. Background Art

[0002] At present, common valves that can be remotely controlled are generally pneumatic valves and electromagnetic valves, which are opened and closed by starting and electromagnetic signals.

[0003] Announcement No. CN220523321 U discloses a high-sealing normally open solenoid valve, including a valve body and a valve core. The valve body is provided with an air inlet channel, an air outlet channel and a sealing channel. The air inlet channel and the air outlet channel are both arranged horizontally, and the sealing channel is arranged vertically. The sealing channel includes a connecting chamber and a sealing chamber. The connecting chamber is located at the upper end of the sealing chamber, and the diameter of the connecting chamber is greater than the diameter of the sealing ball. The air inlet channel is communicated with one side of the sealing chamber, and the air outlet channel is communicated with one side of the connecting chamber. The valve core includes a valve core tube, a valve seat and an iron core assembly. The valve core tube is fixedly connected to the valve seat, an external thread is arranged on the valve seat, and an internal thread is arranged on the connecting chamber. The valve seat is connected to the connecting chamber through the thread. A bracket is also fixedly provided at the upper end of the valve body, and a coil is arranged in the bracket. The coil is used to drive the iron core assembly to move. A sealing block is fixedly provided at the lower end of the iron core assembly. The sealing block is used to block the top of the sealing chamber to isolate the sealing chamber from the connecting chamber. A valve core gasket is provided on the sealing block. The valve core gasket is used to enhance the sealing between the sealing block and the valve seat. A valve core pad is also provided at the lower end of the sealing block. The valve core pad is used to increase the sealing of the sealing block to the seal.

[0004] The valve is controlled by the cooperation of the coil and the iron core assembly. However, when the pressure of the fluid flowing through the valve body is high, the force applied by the coil cannot drive the valve to achieve the corresponding action and cannot adapt to the environment of high fluid pressure. Utility Model Content

[0005] In view of this, it is necessary to provide a hydraulic valve to solve the technical problem that the remote control valve in the prior art cannot be applied to the on-off control of high-pressure fluids.

[0006] In order to achieve the above technical objectives, the technical solution of the utility model provides a hydraulic valve, comprising:

[0007] a valve body, wherein the valve body is formed with a flow channel for a fluid to flow through;

[0008] a valve core, the valve core being rotatably built into the flow channel; and

[0009] A hydraulic assembly comprises a fixed shell, a rotating shaft and a rotating member, wherein the fixed shell is connected to the valve body and is provided with a first fluid channel and a second fluid channel communicating with the interior, the rotating shaft is connected to the valve core and can be rotatably extended into the fixed shell, the rotating member is connected to the rotating shaft and divides the internal space of the fixed shell into two cavities, and the two cavities are respectively connected to the first fluid channel and the second fluid channel.

[0010] In one embodiment, the rotating member is rotatably and sealingly connected to the inner wall of the fixed shell.

[0011] In one embodiment, the inner wall of the fixed shell has a first curved surface and a second curved surface, the first curved surface and the second curved surface are arranged along the circumference of the rotating shaft, one side of the rotating member can be rotatably fitted to the first curved surface, and the other side can be rotatably fitted to the second curved surface, and both ends of the rotating member can be rotatably fitted to the inner wall of the fixed shell.

[0012] In one of the embodiments, the rotating member is provided with an annular groove along the circumference for embedding a sealing ring.

[0013] In one embodiment, the valve core is provided with a through hole relative to the flow channel;

[0014] The rotating member has two extreme positions in the rotation direction in the fixed shell, the angle between the two extreme positions of the rotating member is 90 degrees, and when the rotating member is at the two extreme positions, it can drive the valve core to close the flow channel respectively, or make the through hole connect to the flow channel.

[0015] In one embodiment, the cross-section of the internal cavity of the fixed shell is fan-shaped, and the rotating member includes a cylindrical portion and a baffle portion. The cylindrical portion can be rotatably mounted on the rotating shaft, and the end of the cylindrical portion can be rotatable and sealingly fitted to the inner wall of the fixed shell, and the circumferential surface of the cylindrical portion can be rotatable and sealingly fitted to the first arc surface; the baffle portion is connected to the cylindrical portion, and the two ends of the baffle portion can be rotatable and sealingly fitted to the inner wall of the fixed shell, and the side of the baffle portion away from the cylindrical portion can be rotatable and sealingly fitted to the second arc surface.

[0016] In one embodiment, the valve core is provided with a strip groove having two relatively parallel first inner walls; the rotating shaft is inserted into the strip groove and has two relatively parallel first outer walls, and the two first outer walls are respectively attached to the two first inner walls.

[0017] In one embodiment, the rotating shaft extends out of the fixed shell, and at least one second outer wall parallel to the first outer wall is formed at one end of the rotating shaft extending out of the fixed shell.

[0018] In one embodiment, the hydraulic valve further includes a joint, which is detachably connected to the valve body, and the joint is provided with a threaded hole connected to the flow channel.

[0019] In one embodiment, joints are provided at both ends of the valve body.

[0020] Compared with the prior art, the beneficial effects of the utility model include: when the pressure fluid is passed into the first fluid channel, the pressure fluid enters a cavity, pushing the rotating member to rotate, and since the rotating member is connected to the rotating shaft, the rotating shaft also rotates accordingly, and the rotating shaft is connected to the valve core, and when the rotating shaft rotates, the valve core also rotates accordingly; by changing the angle of the valve core, the flow area of ​​the flow channel can be changed, thereby realizing the opening, closing or flow regulation of the valve.

[0021] When the second fluid passage is fed with pressurized fluid, the pressure in the other cavity increases, pushing the rotating member to rotate in the opposite direction. Similarly, this will cause the rotating shaft and the valve core to rotate, thereby closing the valve or regulating the flow rate.

[0022] Through the above-mentioned settings, due to the incompressibility of the liquid, the hydraulic valve can respond quickly after receiving the control signal to achieve rapid opening and closing of the valve; by adjusting the pressure and flow of the liquid, the valve opening angle can be accurately controlled, thereby achieving accurate adjustment of the fluid flow; the hydraulic valve is hydraulically driven and will not generate sparks, and is suitable for dangerous occasions such as flammable and explosive places; the hydraulic valve can select different working media according to different working conditions and has strong adaptability; the pressure fluid with appropriate pressure can be applied to the rotating part through the first fluid channel and the second fluid channel, so that the rotating part can drive the rotating shaft and the valve core to control the on and off of the high-pressure fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a hydraulic valve according to an embodiment of the utility model;

[0024] Figure 2 It is an exploded view of a hydraulic valve according to an embodiment of the utility model;

[0025] Figure 3 It is an exploded view of the rotating shaft, rotating member and valve core of the hydraulic valve according to one embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure inside the fixed shell of the hydraulic valve described in one embodiment of the utility model.

[0027] Description of reference numerals:

[0028] Valve body 1;

[0029] Valve core 2;

[0030] Strip groove 2a;

[0031] First inner wall 2a1;

[0032] Hydraulic component 3;

[0033] Fixed shell 31;

[0034] First fluid channel 31a;

[0035] A second fluid channel 31b;

[0036] Cavity 31c;

[0037] A first arc surface 31d;

[0038] A second curved surface 31e;

[0039] Rotating shaft 32;

[0040] A first outer wall 32a;

[0041] A second outer wall 32b;

[0042] Rotating member 33;

[0043] Annular groove 33a;

[0044] cylindrical portion 331;

[0045] Baffle portion 332;

[0046] Connector 4. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0048] like Figure 1 and Figure 2 As shown, the utility model provides a hydraulic valve, including a valve body 1, a valve core 2 and a hydraulic assembly 3, the valve body 1 forms a flow channel for fluid to flow through; the valve core 2 can be rotatably built into the flow channel; the hydraulic assembly 3 includes a fixed shell 31, a rotating shaft 32 and a rotating member 33, the fixed shell 31 is connected to the valve body 1, and is provided with a first fluid channel 31a and a second fluid channel 31b connected to the interior, the rotating shaft 32 is connected to the valve core 2 and can be rotatably extended into the fixed shell 31, the rotating member 33 is connected to the rotating shaft 32, and divides the internal space of the fixed shell 31 into two cavities 31c, and the two cavities 31c are respectively connected to the first fluid channel 31a and the second fluid channel 31b.

[0049] When pressure fluid (such as water or oil) is passed into the first fluid channel 31a, the pressure fluid enters a cavity 31c, pushing the rotating member 33 to rotate. Since the rotating member 33 is connected to the rotating shaft 32, the rotating shaft 32 also rotates accordingly. The rotating shaft 32 is connected to the valve core 2. When the rotating shaft 32 rotates, the valve core 2 also rotates accordingly. By changing the angle of the valve core 2, the flow area of ​​the flow channel can be changed, thereby realizing the opening, closing or flow regulation of the valve.

[0050] When the pressure fluid is introduced into the second fluid channel 31b, the pressure in the other cavity 31c increases, pushing the rotating member 33 to rotate in the opposite direction. Similarly, this will cause the rotating shaft 32 and the valve core 2 to rotate, thereby closing the valve or adjusting the flow rate.

[0051] Through the above-mentioned settings, due to the incompressibility of the liquid, the hydraulic valve can respond quickly after receiving the control signal to achieve rapid opening and closing of the valve; by adjusting the pressure and flow of the liquid, the precise control of the valve opening angle can be achieved, thereby achieving precise adjustment of the fluid flow; the hydraulic valve is hydraulically driven and will not generate sparks, and is suitable for dangerous occasions such as flammable and explosive places; the hydraulic valve can select different working media (such as water or oil) according to different working conditions, and has strong adaptability; the pressure fluid of appropriate pressure can be applied to the rotating part 33 through the first fluid channel 31a and the second fluid channel 31b, so that the rotating part 33 can drive the rotating shaft 32 and the valve core 2 to control the on and off of the high-pressure fluid.

[0052] It should be understood that the first fluid channel 31 a is a liquid inlet hole and a liquid outlet hole opened in the fixed shell 31 , and the second fluid channel 31 b is a liquid inlet hole and a liquid outlet hole opened in the fixed shell 31 .

[0053] It should be understood that the fixed shell 31 is formed by two shells which are hollow inside and open at one end, and the open ends of the two shells are detachably connected by bolts.

[0054] like Figure 4 As shown, in one embodiment, the rotating member 33 is rotatably and sealingly connected to the inner wall of the fixed shell 31 .

[0055] The rotating and sealing connection can ensure the sealing between the two cavities 31c inside the fixed shell 31, prevent the fluid from leaking from one cavity 31c to the other cavity 31c, and thus ensure the normal operation of the valve.

[0056] It should be understood that the rotating member 33 and the inner wall of the fixed shell 31 can be sealed by cooperation, or can be rotated and sealed by a sealing ring, a sealing strip, etc.

[0057] like Figure 4As shown, in one embodiment, the inner wall of the fixed shell 31 has a first curved surface 31d and a second curved surface 31e, and the first curved surface 31d and the second curved surface 31e are arranged along the circumference of the rotating shaft 32. One side of the rotating member 33 can be rotatably fitted to the first curved surface 31d, and the other side can be rotatably fitted to the second curved surface 31e. Both ends of the rotating member 33 can be rotatably fitted to the inner wall of the fixed shell 31.

[0058] Since the rotating member 33 is rotatably built into the fixed shell 31, when the rotating member 33 rotates, the rotation tracks of its two sides are arc-shaped. By providing the first arc surface 31d and the second arc surface 31e on the inner wall of the fixed shell 31, the two sides of the rotating member 33 can rotate and fit the first arc surface 31d and the second arc surface 31e when rotating, thereby realizing the rotation and sealing of the two sides of the rotating member 33 and the inner wall of the fixed shell 31. By making the two ends of the rotating rotating member 33 rotatably fit the inner wall of the fixed shell 31, the two ends of the rotating member 33 can always be in sealing fit with the inner wall of the fixed shell 31 during the rotation process.

[0059] like Figure 4 As shown, in one embodiment, the rotating member 33 is provided with an annular groove 33a along the circumferential direction for embedding a sealing ring (not shown in the figure).

[0060] By opening an annular groove 33a on the fixed shell 31 and embedding the sealing ring in the annular groove 33a, the two sides and ends of the rotating member 33 are in contact with the inner wall of the fixed shell 31 through the sealing ring, thereby realizing the rotation and sealing connection between the rotating member 33 and the inner wall of the fixed shell 31.

[0061] like Figure 4 As shown, in one of the embodiments, the valve core 2 is provided with a through hole relative to the flow channel; the rotating member 33 has two extreme positions in the rotation direction in the fixed shell 31, and the angle between the two extreme positions of the rotating member 33 is 90 degrees. When the rotating member 33 is in the two extreme positions, it can drive the valve core 2 to close the flow channel respectively, or make the through hole connect to the flow channel.

[0062] Since the valve core 2 is provided with a through hole relative to the flow channel, the valve core 2 can open and close the flow channel by rotating 90°. Therefore, in this embodiment, by limiting the rotation angle of the rotating member 33, the rotating member 33 can control the valve core 2 to open or close the flow channel, and can correspond to the opening and closing of the valve core 2 in the extreme position, and can withstand a larger closing pressure and opening pressure.

[0063] It should be understood that, at the extreme position, the rotating member 33 abuts against the inner wall of the fixed shell 31 .

[0064] like Figure 4As shown, in one of the embodiments, the cross-section of the internal cavity 31c of the fixed shell 31 is fan-shaped, and the rotating member 33 includes a cylindrical portion 331 and a baffle portion 332. The cylindrical portion 331 can be rotatably sleeved on the rotating shaft 32, and the end of the cylindrical portion 331 can be rotatable and sealed to the inner wall of the fixed shell 31, and the circumferential surface of the cylindrical portion 331 can be rotatable and sealed to the first arc surface 31d; the baffle portion 332 is connected to the cylindrical portion 331, and the two ends of the baffle portion 332 can be rotatable and sealed to the inner wall of the fixed shell 31, and the side of the baffle portion 332 away from the cylindrical portion 331 can be rotatable and sealed to the second arc surface 31e.

[0065] When pressure fluid flows into the first fluid channel 31a, the pressure fluid pushes the baffle portion 332 to rotate, the baffle portion 332 drives the cylindrical portion 331 to rotate, the cylindrical portion 331 drives the rotating shaft 32 to rotate, the rotating shaft 32 drives the valve core 2 to rotate, the rotating valve core 2 controls the opening and closing of the flow channel, and the baffle portion 332 can apply a rotational torque to the cylindrical portion 331, thereby pushing the rotating shaft 32 to rotate.

[0066] The circumferential surface of the cylindrical portion 331 is sealed in fit with the first arc surface 31d, and the end of the cylindrical portion 331 is sealed in fit with the inner wall of the fixed shell 31, thereby realizing the rotation and sealed connection between the end and circumferential surface of the cylindrical portion 331 and the inner wall of the fixed shell 31; the side of the baffle portion 332 away from the cylindrical portion 331 can be rotated to seal and fit the second arc surface 31e, and the two ends of the baffle portion 332 can be rotatably fitted with the planar inner wall of the fixed shell 31, thereby realizing the sealed fit between the baffle portion 332 and the inner wall of the fixed shell 31, and the rotation and sealed fit between the rotating member 33 and the inner wall of the fixed shell 31 can be realized.

[0067] It should be understood that the annular groove 33 a is arranged along the circumferential direction of the baffle portion 332 , and is arranged along the radial direction, axial direction and radial direction of the cylindrical portion 331 , and passes through the circumferential surface of the cylindrical portion 331 along the radial direction of the cylindrical portion 331 .

[0068] like Figure 3 As shown, in one embodiment, the valve core 2 is provided with a strip groove 2a, and the strip groove 2a has two relatively parallel first inner walls 2a1; the rotating shaft 32 is inserted into the strip groove 2a, and has two relatively parallel first outer walls 32a, and the two first outer walls 32a are respectively attached to the two first inner walls 2a1.

[0069] By inserting the rotating shaft 32 into the strip groove 2a, the two parallel first outer walls 32a of the rotating shaft 32 fit into the two parallel first inner walls 2a1 of the strip groove 2a. When the rotating shaft 32 rotates, it can drive the valve core 2 to rotate. Moreover, the two are connected only by plugging, and the connection method is simple and reliable.

[0070] like Figure 1As shown, in one embodiment, the rotating shaft 32 extends out of the fixed shell 31, and one end of the rotating shaft 32 extending out of the fixed shell 31 is formed with at least one second outer wall 32b parallel to the first outer wall 32a.

[0071] By observing the position of the second outer wall 32 b of the rotating shaft 32 outside the fixed shell 31 , the angle of the internal valve core 2 can be determined, and further, whether the valve is in place can be determined.

[0072] It should be understood that one end of the rotating shaft 32 can rotate through the fixed shell 31 , and the other end of the rotating shaft 32 can rotate and extend into the valve body 1 , and the rotating shaft 32 is sealedly connected to the fixed shell 31 and the valve body 1 .

[0073] like Figure 2 As shown, in one embodiment, the hydraulic valve further includes a connector 4, which is detachably connected to the valve body 1, and the connector 4 is provided with a threaded hole connected to the flow channel.

[0074] By connecting the joint 4 to the valve body 1 , when it is necessary to connect the valve body 1 to other pipelines, the other pipelines are threadedly connected to the threaded holes, and the valve body 1 can be connected to the other pipelines through the joint 4 .

[0075] It should be understood that the connector 4 and the valve body 1 can be detachably connected by bolts, screws, snaps, etc.

[0076] like Figure 2 As shown, in one of the embodiments, joints 4 are provided at both ends of the valve body 1 .

[0077] By providing joints 4 at both ends of the valve body 1, both ends of the valve body 1 can be connected to pipelines.

[0078] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic valve, characterized in that: include: a valve body, wherein the valve body is formed with a flow channel for a fluid to flow through; A valve core, the valve core is rotatably built into the flow channel; and A hydraulic assembly comprises a fixed shell, a rotating shaft and a rotating member, wherein the fixed shell is connected to the valve body and is provided with a first fluid channel and a second fluid channel communicating with the interior, the rotating shaft is connected to the valve core and can be rotatably extended into the fixed shell, the rotating member is connected to the rotating shaft and divides the internal space of the fixed shell into two cavities, and the two cavities are respectively connected to the first fluid channel and the second fluid channel.

2. The hydraulic valve according to claim 1, characterized in that: The rotating member is rotatably and sealingly connected to the inner wall of the fixed shell.

3. The hydraulic valve according to claim 2, characterized in that: The inner wall of the fixed shell has a first curved surface and a second curved surface, the first curved surface and the second curved surface are arranged along the circumference of the rotating shaft, one side of the rotating member can be rotatably fitted to the first curved surface, and the other side can be rotatably fitted to the second curved surface, and both ends of the rotating member can be rotatably fitted to the inner wall of the fixed shell.

4. The hydraulic valve according to claim 3, characterized in that: The rotating member is provided with an annular groove for embedding a sealing ring along the circumferential direction.

5. The hydraulic valve according to claim 1, characterized in that: The valve core is provided with a through hole relative to the flow channel; The rotating member has two extreme positions in the rotation direction in the fixed shell, the angle between the two extreme positions of the rotating member is 90 degrees, and when the rotating member is at the two extreme positions, it can drive the valve core to close the flow channel respectively, or make the through hole connect to the flow channel.

6. The hydraulic valve according to claim 3, characterized in that: The cross-section of the internal cavity of the fixed shell is fan-shaped, and the rotating member includes a cylindrical portion and a baffle portion. The cylindrical portion can be rotatably sleeved on the rotating shaft, the end of the cylindrical portion can be rotatable and sealingly fitted to the inner wall of the fixed shell, and the circumferential surface of the cylindrical portion can be rotatable and sealingly fitted to the first arc surface; the baffle portion is connected to the cylindrical portion, the two ends of the baffle portion can be rotatable and sealingly fitted to the inner wall of the fixed shell, and the side of the baffle portion away from the cylindrical portion can be rotatable and sealingly fitted to the second arc surface.

7. The hydraulic valve according to claim 1, characterized in that: The valve core is provided with a strip groove, and the strip groove has two relatively parallel first inner walls; the rotating shaft is inserted into the strip groove and has two relatively parallel first outer walls, and the two first outer walls are respectively attached to the two first inner walls.

8. The hydraulic valve according to claim 7, characterized in that: The rotating shaft extends out of the fixed shell, and one end of the rotating shaft extending out of the fixed shell is formed with at least one second outer wall parallel to the first outer wall.

9. The hydraulic valve according to claim 1, characterized in that: It also includes a joint, which is detachably connected to the valve body and has a threaded hole connected to the flow channel.

10. The hydraulic valve according to claim 9, characterized in that: Both ends of the valve body are provided with joints.

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