Sheet type throttle valve

Abstract

According to the technical scheme, the plate type throttling valve is characterized in that the plate type throttling valve comprises a throttling valve body, and the throttling valve body comprises a throttling valve seat, a throttling valve cover, a throttling valve plate set, a sleeve and a spiral shifting block; the throttle valve seat is matched with the throttle valve cover, the throttle valve plate group comprises a throttle valve plate A and a throttle valve plate B which are close to each other, a cavity A matched with the throttle valve plate group is arranged at a fit clearance of the throttle valve seat and the throttle valve cover, the throttle valve plate group is mounted in the cavity A, and an opening for arranging a spiral shifting block is arranged on the throttle valve cover. The relative position of the throttle valve plate A and the throttle valve plate B can be changed by using the spiral shifting block, so that the flow of the throttle valve can be changed under the condition that the throttle valve is not disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of flow control components in hydraulic systems, and more specifically to a wafer throttle valve. Background Art

[0002] Currently, a throttle valve is a valve that controls the fluid flow by changing the throttle area or throttle length, and is a commonly used flow control component in hydraulic systems. Generally, common throttle valves have corners in their structures. When the flow direction of the medium changes, it will impact the valve wall of the throttle valve, generating vibration and noise, and causing a certain amount of energy loss to the medium, reducing efficiency. The wafer throttle valve has a simple and compact structure, and realizes throttling through the designed throttle valve wafers. It is more convenient in applications with limited space, and the maintenance and cleaning work are relatively easy to carry out, reducing costs; when adjusting the flow rate, it does not change the flow direction of the medium, causing less disturbance to the medium, and can reduce energy loss and improve the overall efficiency of the system.

[0003] Currently, Chinese Patent No. CN200920263356.9 discloses a circular automatic throttle valve, which includes a first valve body and a second valve body, and a circular valve is clamped between the first valve body and the second valve body. The utility model is installed in a pipeline with a certain water pressure, and the opening degree of the circular valve is automatically adjusted to control the pressure difference and water flow rate generated on both sides of the valve when using water, and keep the water flow relatively balanced.

[0004] However, there are still some defects in the above-mentioned prior art. During use, when it is necessary to change and adjust the flow rate, it is necessary to replace the valve wafer for throttling to achieve the change of the flow rate. The process requires disassembling and assembling the throttle valve, which is cumbersome and not convenient. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a wafer throttle valve.

[0006] To achieve the above object, the utility model provides the following technical solution: A wafer throttle valve includes a throttle valve body, and the throttle valve body includes a throttle valve seat, a throttle valve cover, a throttle valve wafer group, a sleeve and a spiral dial; the throttle valve seat is matched with the throttle valve cover, the throttle valve wafer group includes throttle valve wafer A and throttle valve wafer B, throttle valve wafer A and throttle valve wafer B are close to each other and can rotate relative to each other, there is a cavity A adapted to the throttle valve wafer group at the mating clearance between the throttle valve seat and the throttle valve cover, the throttle valve wafer group is installed in cavity A, there is a cavity B adapted to the sleeve on the throttle valve cover, the sleeve is arranged in cavity B, throttle valve wafer B is close to the left end of the sleeve, and there is an opening for arranging the spiral dial on the throttle valve cover.

[0007] The present utility model is further configured as follows: The throttle valve plate A and the throttle valve plate B include a rigid outer ring, grooves provided on the rigid outer ring, a flexible inner ring, and eccentric damping holes provided on the flexible inner ring; the rigid outer ring is a metal outer ring, and the flexible inner ring is rubber.

[0008] The present utility model is further configured as follows: The throttle valve seat has a protrusion adapted to the groove on the throttle valve plate A, and the throttle valve plate A is matched with the throttle valve seat.

[0009] The present utility model is further configured as follows: The sleeve has a protrusion adapted to the groove on the throttle valve plate B, and the throttle valve plate B is matched with the sleeve.

[0010] The present utility model is further configured as follows: The sleeve is provided with worm wheel teeth that cooperate with the spiral dial.

[0011] The present utility model is further configured as follows: The throttle valve seat and the throttle valve cover are fixed by a flange.

[0012] In summary, the present utility model has the following beneficial effects: Driven by the movement of the spiral dial, the sleeve with worm wheel teeth rotates, driving the throttle valve plate B through the rotation of the sleeve, changing the relative position between the throttle valve plate A and the throttle valve plate B, so as to control the flow rate of the throttle valve without disassembly, with simple operation and convenient use; the moving parts inside the throttle valve are not prone to displacement during use, and the noise generated by the friction between the parts and the inner wall is small, making it more comfortable. Description of the Drawings

[0013] Figure 1 is the structural schematic diagram of this embodiment;

[0014] Figure 2 is the schematic diagram of the throttle valve plate group of this embodiment;

[0015] Figure 3 is the functional schematic diagram of the spiral dial of this embodiment;

[0016] Reference numerals: 1, throttle valve seat; 2, throttle valve cover; 3, throttle valve plate group; 31, throttle valve plate A; 32, throttle valve plate B; 33, damping hole; 34, groove; 35, rigid outer ring; 36, flexible inner ring; 4, sleeve; 5, spiral dial; 6, cavity A; 61, cavity B. Detailed Embodiment

[0017] The following further details the present utility model with reference to the drawings.

[0018] This embodiment discloses a plate-type throttle valve, as Figure 1As shown, it includes a throttle valve seat, a throttle valve cover, a throttle valve blade group 3, a sleeve, and a spiral dial block; the throttle valve seat is matched with the throttle valve cover, the throttle valve blade group 3 includes a throttle valve blade A31 and a throttle valve blade 32, the throttle valve blade A31 and the throttle valve blade B32 are close to each other and can rotate relative to each other, there is a cavity A adapted to the throttle valve blade group 3 at the mating clearance between the throttle valve seat and the throttle valve cover, the throttle valve blade group 3 is installed in the cavity A, there is a cavity B adapted to the sleeve on the throttle valve cover, the sleeve is arranged in the cavity B, the throttle valve blade B32 is close to the left end of the sleeve, and there is an opening for arranging the spiral dial block on the throttle valve cover.

[0019] As Figure 2 As shown, the throttle valve blade A31 and the throttle valve blade B32 include a rigid outer ring 35, grooves 34 arranged on the rigid outer ring 35, a flexible inner ring 36, and eccentric damping holes 33 arranged on the flexible inner ring 36. The eccentric damping holes 33 control the relative rotation of the throttle valve blade A31 and the throttle valve blade B32. By the cooperation of the two eccentric holes at different angles, damping holes 33 with different cross-sectional areas can be obtained, so as to obtain different throttling effects; the rigid outer ring 35 is a metal outer ring, which plays a supporting role for the throttle valve blade, so that the throttle valve blade will not be deformed excessively under the impact of the fluid medium; the flexible inner ring 36 is made of rubber, so that the throttle valve blade A31 and the throttle valve blade B32 will be slightly deformed under the impact of the fluid medium and fit tightly, and the throttling effect is good.

[0020] Further improved, there are protrusions on the throttle valve seat 1 adapted to the grooves 34 on the throttle valve blade A31, and the throttle valve blade A31 is matched with the throttle valve seat 1. The relative position of the throttle valve blade A31 installed on the throttle valve seat 1 can be determined by the cooperation of the protrusions and the grooves 34, so that the throttle valve blade A3 is relatively fixed on the throttle valve seat 1, and the relative rotation of the throttle valve blade A31 relative to the throttle valve seat 1 is controlled.

[0021] Further improved, there are protrusions on the sleeve 4 adapted to the grooves 34 on the throttle valve blade B32, and the throttle valve blade B32 is matched with the sleeve 4. The same rotation of the throttle valve blade B32 and the sleeve 4 is achieved through the cooperation of the protrusions and the grooves 34, so that the throttle valve blade B32 can be driven to rotate together when the sleeve 4 rotates.

[0022] As Figure 3As shown, the sleeve 4 is provided with worm gear teeth that match the spiral shift block 5. The sleeve 4 and the spiral shift block 5 are matched together through the worm gear teeth. When the spiral shift block 5 is rotated, the rotation of the spiral shift block 5 is transmitted to the sleeve 4 through the worm gear teeth. Because the rotation of the sleeve 4 is controlled by the spiral shift block 5, the sleeve 4 does not rotate and is stationary relative to the throttle cover 2 under normal operation, reducing the noise generated by the rotational friction between the sleeve 4 and the throttle cover 2. Because the sleeve 4 is connected to the throttle plate B32, the rotation of the throttle plate B32 can be controlled by the rotation of the spiral shift block 5.

[0023] Working principle of the utility model

[0024] The throttle valve plate A31 is installed on the throttle valve seat 1, the throttle valve plate B32 cooperates with the sleeve 4, the sleeve 4 is installed in the throttle valve cover 2, the throttle valve seat 1 cooperates with the throttle valve cover 2, and the spiral dial block 5 is installed at the combined opening of the throttle valve seat 1 and the throttle valve cover 2. When in use, the relative position of the throttle valve plate A31 and the throttle valve plate B32 can be changed by dialing the dial block to obtain different sizes of the damping hole 33, thereby obtaining different throttling schemes suitable for different scenarios, and the operation is simple, convenient and effective;

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A chip throttle valve, comprising a throttle valve body, characterized in that: The throttle valve body includes a throttle valve seat (1), a throttle valve cover (2), a throttle valve plate group (3), a sleeve (4), and a spiral dial (5); the throttle valve seat (1) is matched with the throttle valve cover (2), the throttle valve plate group (3) includes a throttle valve plate A (31) and a throttle valve plate B (32), the throttle valve plate A (31) and the throttle valve plate B (32) are close to each other and can rotate relatively, there is a cavity A (6) adapted to the throttle valve plate group (3) at the mating clearance between the throttle valve seat (1) and the throttle valve cover (2), the throttle valve plate group (3) is installed in the cavity A (6), a cavity B (61) adapted to the sleeve (4) is provided on the throttle valve cover (2), the sleeve (4) is arranged in the cavity B (61), the throttle valve plate B (32) is close to the left end of the sleeve (4), and an opening for arranging the spiral dial (5) is provided on the throttle valve cover (2).

2. The chip throttle valve according to claim 1, wherein: The throttle valve plate A (31) and the throttle valve plate B (32) include a rigid outer ring (35), a groove (34) provided on the rigid outer ring (35), a flexible inner ring (36), and an eccentric damping hole (33) provided on the flexible inner ring (36); the rigid outer ring (35) is a metal outer ring, and the flexible inner ring (36) is rubber.

3. The chip throttle valve according to claim 1, wherein: There is a protrusion on the throttle valve seat (1) adapted to the groove (34) on the throttle valve plate A (31), and the throttle valve plate A (31) is matched with the throttle valve seat (1).

4. A chip throttle valve according to claim 1, characterized in that: There is a protrusion on the sleeve (4) adapted to the groove (34) on the throttle valve plate B (32), and the throttle valve plate B (32) is matched with the sleeve (4).

5. The chip throttle valve according to claim 1, wherein: The sleeve (4) is provided with worm wheel teeth matched with the spiral dial (5).

6. The chip throttle valve according to claim 1, wherein: The throttle valve seat (1) and the throttle valve cover (2) are fixed by a flange.

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