Positive seal proportional control valve with sealable vent valve

Abstract

The utility model discloses a positive sealing proportional control valve with a sealable vent valve, which relates to the technical field of control valves and comprises a control valve component, the control valve component comprises a valve body and a valve core, and the valve core is rotatably connected to the upper end of the valve body; the movable assembly comprises a rotating disc, clamping grooves, a fixed sleeve, a movable column, a wheel disc, a movable disc, clamping blocks and a telescopic spring, the rotating disc is fixedly connected to the top end of the valve element, the clamping grooves are formed in the periphery of the rotating disc, the fixed sleeve is fixedly connected to the upper end of the valve body, and the movable column is slidably connected to the upper end of the interior of the fixed sleeve; according to the positive sealing proportional control valve, the movable assembly is utilized, and the problems that when an existing positive sealing proportional control valve is used, after the sealing proportion is adjusted, and when the rotating disc is touched by mistake, the rotating disc can drive the valve element to rotate, so that the sealing proportion is changed, the sealing proportion needs to be adjusted again, and the flow passing through the control valve is unstable are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to control valve technical field, concretely is positive sealing proportional control valve with sealable breather valve. BACKGROUND

[0002] Positive sealing proportional control valve is a kind of hydraulic valve for accurately controlling fluid flow, usually simply referred to as proportional valve, it is a kind of control valve according to input electric signal continuously, according to proportionally control the flow, pressure and direction of hydraulic system.

[0003] The existing positive sealing proportional control valve when using, when adjusting completed sealing proportion, when accidentally touching the dial, dial will drive valve core to rotate, to change sealing proportion, so that the sealing proportion needs to be adjusted again, so that the flow of control valve is unstable. UTILITY MODEL CONTENTS

[0004] The utility model discloses a positive sealing proportional control valve with sealable breather valve to solve the problem that the existing positive sealing proportional control valve in the above background technology is unstable when using, when adjusting completed sealing proportion, when accidentally touching the dial, dial will drive valve core to rotate, to change sealing proportion, so that the sealing proportion needs to be adjusted again, so that the flow of control valve is unstable.

[0005] To solve the above technical problem, the utility model provides a positive sealing proportional control valve with sealable breather valve, which comprises:

[0006] A control valve assembly comprises a valve body and a valve core, and the valve core is rotationally connected to the upper end position of the valve body.

[0007] An activity assembly comprises a dial, a clamping groove, a fixed sleeve, a movable column, a wheel disc, a movable disc, a clamping block and an extension spring, the dial is fixedly connected to the top end position of the valve core, the clamping groove is arranged at the peripheral position of the dial, the fixed sleeve is fixedly connected to the upper end position of the valve body, the movable column is slidingly connected to the inner upper end position of the fixed sleeve, the wheel disc is fixedly connected to the top end position of the movable column, the movable disc is fixedly connected to the bottom end position of the movable column, the clamping block is fixedly connected to the bottom end outer peripheral position of the movable disc, and the top end of the extension spring is in contact with the bottom end of the movable disc.

[0008] Further, the control valve assembly further comprises a communication pipe, and the communication pipe is fixedly connected to the both sides of the valve body.

[0009] Further, the bottom end of the extension spring is fixedly connected to the top end central position of the dial, and the clamping groove is arranged relative to the clamping block.

[0010] Further, the fixed sleeve is located at the outer position of the valve core, and the wheel disc is located at the upper position of the fixed sleeve.

[0011] Further, the movable column penetrates the upper end of the fixed sleeve and extends to both sides, and the clamping block is located above the clamping groove.

[0012] Further, the sealing assembly includes a first baffle, a supporting rod, a movable tube, a second baffle, a fixed tube and a threaded groove, the first baffle is fixedly connected to one side of the inner part of the communicating tube, the supporting rod is fixedly connected to the outer end of the inner part of the communicating tube, the movable tube is slidingly connected to the outer surface of the supporting rod, the second baffle is fixedly connected to the outer end of the movable tube, the fixed tube is rotatably connected to the outer side of the movable tube, and the threaded groove is arranged on the outer surface of the communicating tube.

[0013] Further, the first baffle and the second baffle are staggered, and the movable tube is slidingly connected to the inner part of the communicating tube.

[0014] Further, the outer surface of the fixed tube is provided with a threaded structure corresponding to the threaded groove, and the fixed tube is sleeved with the outer part of the communicating tube.

[0015] Compared with the prior art, the beneficial effects of the utility model are that: through the setting activity assembly, the valve core and the rotating disc are shielded through the fixed sleeve, and the movable disc is pushed upward through the extension spring, so that the movable disc drives the clamping block to move downward, the clamping block moves upward and separates from the clamping groove, so that the rotating disc cannot be directly driven to rotate, the rotating disc and the valve core cannot be rotated due to the mistake, and the sealing ratio is avoided to be changed.

[0016] Meanwhile, through the setting sealing assembly, the fixed tube is moved along the communicating tube under the driving of the threaded structure, the movable tube is moved under the driving of the fixed tube, the movable tube is moved along the supporting rod and drives the second baffle to move, when the second baffle and the first baffle are attached, the first baffle and the second baffle can seal the inner part of the communicating tube, so that the two sides of the breather valve can be sealed without closing the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is the control valve assembly structure diagram of the utility model;

[0020] Figure 3The utility model discloses activity subassembly structure diagram;

[0021] Figure 4 The utility model discloses sealing subassembly structure diagram.

[0022] In the drawing, the component list that each sign represents is as follows:

[0023] 11, valve body;12, communication pipe;13, valve core;21, rotating disc;22, clamping groove;23, fixed sleeve;24, movable column;25, wheel disc;26, movable disc;27, clamping block;28, extension spring;31, first baffle;32, support rod;33, movable pipe;34, second baffle;35, fixed pipe;36, screw groove. Specific implementation

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the range of the utility model protection.

[0025] Please refer to Figures 1-3 The utility model discloses a positive sealing proportional control valve with sealable breather valve, comprising:

[0026] Control valve assembly, control valve assembly includes valve body 11 and valve core 13, and valve core 13 is rotationally connected on the upper end position of valve body 11.

[0027] Movable assembly, movable assembly includes rotating disc 21, clamping groove 22, fixed sleeve 23, movable column 24, wheel disc 25, movable disc 26, clamping block 27 and extension spring 28, and rotating disc 21 is fixedly connected on the top end position of valve core 13, clamping groove 22 is set up on the position around rotating disc 21, fixed sleeve 23 is fixedly connected on the upper end position of valve body 11, movable column 24 is slidingly connected on the upper end position inside fixed sleeve 23, wheel disc 25 is fixedly connected on the top end position of movable column 24, movable disc 26 is fixedly connected on the bottom end position of movable column 24, clamping block 27 is fixedly connected on the bottom end outside four around positions of movable disc 26, and the top end of extension spring 28 and the bottom end of movable disc 26 are in contact.

[0028] Rotating disc 21 is used to drive valve core 13 to rotate, clamping groove 22 is used for clamping with clamping block 27, fixed sleeve 23 is used to shield valve core 13 and rotating disc 21, movable column 24 is used to support wheel disc 25, wheel disc 25 is used to drive movable column 24 to rotate, movable disc 26 is used to support clamping block 27, and extension spring 28 is used to reset movable disc 26.

[0029] The control valve assembly further comprises a communication pipe 12 fixedly connected to both sides of the valve body 11.

[0030] The communication pipe 12 is used to communicate the valve body 11 and the breather valve, and the valve core 13 is used to change the sealing proportion inside the valve body 11.

[0031] The bottom end of the telescopic spring 28 is fixedly connected to the top end of the rotating disc 21 at the central position, and the clamping groove 22 is opened relative to the clamping block 27.

[0032] When the movable disc 26 moves downward, the movable disc 26 can drive the clamping block 27 to move downward into the clamping groove 22 and drive the telescopic spring 28 to be compressed.

[0033] The fixed sleeve 23 is located outside the valve core 13, and the wheel disc 25 is located above the fixed sleeve 23.

[0034] When the clamping block 27 is not clamped with the clamping groove 22, the rotating wheel disc 25 cannot drive the rotating disc 21 to rotate.

[0035] The movable column 24 penetrates the top end of the fixed sleeve 23 at the center and extends to both sides, and the clamping block 27 is located above the clamping groove 22.

[0036] The movable column 24 can move up and down inside the fixed sleeve 23, and the movement of the movable column 24 can drive the movable disc 26 to move up and down at the top end inside the fixed sleeve 23.

[0037] Working principle: when it is needed to rotate the valve core 13, downward pressure is applied to the movable column 24, so that the movable column 24 moves downward inside the fixed sleeve 23, the movable column 24 moves downward to drive the movable disc 26 to move downward, the movable disc 26 moves downward to drive the telescopic spring 28 to be compressed to generate elastic force and drive the clamping block 27 to move downward, when the clamping block 27 moves to be clamped with the clamping groove 22, rotating force is applied to the wheel disc 25, the wheel disc 25 drives the movable disc 26 to rotate through the movable column 24, the movable disc 26 rotates to drive the rotating disc 21 to rotate through the clamping block 27, so that the rotating disc 21 drives the valve core 13 to rotate, that is, the sealing proportion inside the valve body 11 can be adjusted, when the adjustment is completed, the force applied to the movable column 24 is stopped, under the elastic force of the telescopic spring, the movable disc 26 moves downward, the movable disc 26 moves downward to drive the clamping block 27 to move to the position above the clamping groove 22, at this time, the wheel disc 25 is rotated, the wheel disc 25 drives the movable disc 26 to rotate through the movable column 24, the movable disc 26 drives the clamping block 27 to rotate, but the clamping block 27 cannot drive the rotating disc 21 to rotate, so that the valve core 13 is prevented from rotating.

[0038] Please refer to Figure 4As shown, the embodiment is based on the above-mentioned embodiments, further comprising:

[0039] The sealing assembly comprises a first baffle 31, a support rod 32, a movable tube 33, a second baffle 34, a fixed tube 35, and a threaded groove 36. The first baffle 31 is fixedly connected to one side of the inner part of the communication pipe 12. The support rod 32 is fixedly connected to the outer end of the inner part of the communication pipe 12. The movable tube 33 is slidingly connected to the outer surface of the support rod 32. The second baffle 34 is fixedly connected to the outer end of the movable tube 33. The fixed tube 35 is rotatably connected to the outer side of the movable tube 33. The threaded groove 36 is provided on the outer surface of the communication pipe 12.

[0040] The first baffle 31 is used to engage with the second baffle 34. The support rod 32 is used to support and guide the movable tube 33. The movable tube 33 is used to support the fixed tube 35. The fixed tube 35 is used to move the movable tube 33. The threaded groove 36 is used to fix the fixed tube 35 on the outer surface of the communication pipe 12.

[0041] The first baffle 31 and the second baffle 34 are staggered structures, and the movable tube 33 is slidingly connected to the inner part of the communication pipe 12.

[0042] When the first baffle 31 and the second baffle 34 are in close contact, the first baffle 31 and the second baffle 34 seal the inner part of the communication pipe 12.

[0043] The outer surface of the fixed tube 35 has a threaded structure relative to the threaded groove 36, and the fixed tube 35 is sleeved on the outer part of the communication pipe 12.

[0044] The fixed tube 35 can rotate and move on the outer surface of the communication pipe 12. The movement of the fixed tube 35 drives the movable tube 33 to move in the inner part of the communication pipe 12.

[0045] Working principle: when it is necessary to seal the vent valve without using the valve body 11 to close, by applying a rotating force to the fixed tube 35, the fixed tube 35 rotates and moves horizontally along the outer surface of the communication pipe 12 under the limiting of the threaded groove 36. The fixed tube 35 rotates on the outer side of the movable tube 33, and the horizontal movement of the fixed tube 35 drives the movable tube 33 to move horizontally. The movement of the movable tube 33 drives the second baffle 34 to move towards the first baffle 31. When the second baffle 34 and the first baffle 31 are in close contact, the inner part of the communication pipe 12 can be sealed.

[0046] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can indirectly connect through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and is not used to limit 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 equivalent replacement for part of the technical features.For any modification, equivalent replacement, improvement, etc.in the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A positive seal proportional control valve having a sealable vent valve, characterized by, The utility model relates to a control valve assembly, which comprises a valve body (11) and a valve core (13) rotatably connected to the upper end of the valve body (11), a movable assembly comprising a rotating disc (21), a clamping groove (22), a fixed sleeve (23), a movable column (24), a wheel disc (25), a movable disc (26), a clamping block (27) and an extension spring (28), the rotating disc (21) being fixedly connected to the top end of the valve core (13), the clamping groove (22) being formed around the rotating disc (21), the fixed sleeve (23) being fixedly connected to the upper end of the valve body (11), the movable column (24) being slidably connected to the upper end inside the fixed sleeve (23), the wheel disc (25) being fixedly connected to the top end of the movable column (24), the movable disc (26) being fixedly connected to the bottom end of the movable column (24), the clamping block (27) being fixedly connected to the bottom end outside the movable disc (26), and the extension spring (28) being in contact with the bottom end of the movable disc (26). The control valve assembly further comprises a communication pipe (12) fixedly connected to the two sides of the valve body (11). The bottom end of the extension spring (28) is fixedly connected to the top central position of the rotating disc (21), and the clamping groove (22) is formed relative to the clamping block (27).

2. The positive seal proportional control valve having a sealable vent valve of claim 1, wherein: The fixed sleeve (23) is located outside the valve core (13), and the wheel disc (25) is located above the fixed sleeve (23).

3. The positive seal proportional control valve having a sealable vent valve of claim 1, wherein: The movable column (24) penetrates through the upper central end of the fixed sleeve (23) and extends to both sides, and the clamping block (27) is located above the clamping groove (22).

4. The positive seal proportional control valve having a sealable vent valve of claim 1, wherein: The utility model further comprises a sealing assembly comprising a first baffle (31), a support rod (32), a movable pipe (33), a second baffle (34), a fixed pipe (35) and a threaded groove (36), the first baffle (31) being fixedly connected to the inside of the communication pipe (12) on one side, the support rod (32) being fixedly connected to the inside of the communication pipe (12) on the outer end, the movable pipe (33) being slidably connected to the outer surface of the support rod (32), the second baffle (34) being fixedly connected to the outer end of the movable pipe (33), the fixed pipe (35) being rotatably connected to the outside of the movable pipe (33), and the threaded groove (36) being formed on the outer surface of the communication pipe (12).

5. The positive seal proportional control valve having a sealable vent valve of claim 1, wherein: The first baffle (31) and the second baffle (34) are staggered structures, and the movable pipe (33) is slidably connected to the inside of the communication pipe (12).

6. The positive seal proportional control valve having a sealable vent valve of claim 1, wherein: The outer surface of the fixed pipe (35) has a threaded structure formed relative to the threaded groove (36), and the fixed pipe (35) is sleeved on the outside of the communication pipe (12).

7. The positive seal proportional control valve having a sealable vent valve of claim 6, wherein: ​ 8. The positive seal proportional control valve having a sealable vent valve of claim 6, wherein: ​

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