A plate valve with torque compensation function

Abstract

A plate switch valve with torque compensation function, including actuator, valve body and torque regulator, the valve body is equipped with valve plate, torque regulator includes output shaft and base connected by adjusting assembly, output shaft is connected with actuator, base is connected with valve plate, actuator drives the valve plate to rotate through output shaft and base, adjusting assembly is configured to be extruded downward to make output shaft and base deviate from engagement state when the torque between output shaft and base exceeds threshold value.The utility model discloses set up the torque regulator of dynamic adjustment, the output shaft is engaged with the base through adjusting assembly, keeps stable transmission under normal working condition, when the valve plate rotates to the position, adjusting assembly is extruded downward to make the output shaft or base can continue to rotate to the position alone, thereby effectively absorbing overload torque, prevent the fracture of connecting structure caused by overload torsion.Compared with the prior art, the plate switch valve with torque compensation function has higher reliability and longer service life.

Description

Technical Field

[0001] This utility model relates to the field of hardware, and in particular to a plate-type switch valve with torque compensation function. Background Technology

[0002] In existing technologies, conventional plate-type on / off valves typically use a coupling to rigidly connect the actuator and the valve plate. The actuator directly drives the valve plate to move within the valve body, and the valve plate is mechanically limited by a limiting structure inside the valve body, thereby controlling the reversal or conduction of fluid. However, due to the rigid connection between the actuator and the valve plate, the actual rotation angle of the valve plate is prone to deviation due to limitations in the valve body machining accuracy and the actuator's motion accuracy. This can lead to gaps between the valve plate and the valve body sealing surface, preventing complete closure, or the actuator not reaching the preset position while the valve plate is mechanically limited. In such cases, the actuator continues to output driving force, creating an overload torsional state between the valve plate and the actuator. Long-term operation can easily lead to breakage of the connection structure, severely affecting the reliability and service life of the on / off valve.

[0003] Based on the above, existing plate-type on / off valves need further improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing switching valves that are prone to overload torsion, and to provide a plate-type switching valve with torque compensation function. By adjusting the assembly to connect the output shaft and the base, it can continue to rotate independently into position when the torque exceeds the threshold, thereby compensating for torque, preventing overload torsion, and ensuring the service life of the switching valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plate-type switching valve with torque compensation function, comprising an actuator, a valve body, and a torque regulator. The valve body is provided with a valve plate. The torque regulator includes an output shaft and a base connected by an adjustment component. The output shaft is connected to the actuator, and the base is connected to the valve plate. The actuator drives the valve plate to rotate through the output shaft and the base. The adjustment component is configured to be pressed downward when the torque between the output shaft and the base exceeds a threshold, so that the output shaft and the base are offset from the engagement state.

[0006] This invention features a dynamically adjustable torque regulator. The output shaft is engaged with the base via an adjustment component, maintaining stable transmission under normal operating conditions. When the valve plate rotates to its final position, the adjustment component is pressed downwards, allowing either the output shaft or the base to continue rotating independently. This effectively absorbs overload torque, eliminates valve plate positioning deviations caused by machining and assembly errors, and prevents rigid, twisted torsion between the actuator and valve plate, which could lead to breakage of the connection structure. This significantly improves the overall reliability and service life of the switching valve. Compared to existing technologies, this invention's plate-type switching valve with torque compensation function offers higher reliability and a longer service life.

[0007] Preferably, the base is provided with a mounting groove, and the adjustment component includes a spring and a steel ball. The spring is disposed in the mounting groove, with one end abutting in the mounting groove and the other end abutting in the steel ball. The spring is elastic and can be compressed when pressed downward, thereby realizing the relative rotation between the output shaft and the base.

[0008] Preferably, the base is provided with a mounting groove that extends through the base. The adjustment assembly includes a spring, a steel ball, and a set screw. The set screw closes the lower end of the mounting groove. One end of the spring abuts against the set screw, and the other end abuts against the steel ball. The set screw is used to adjust the torque. By adjusting the set screw, the spring is compressed. When the spring force increases, the pressure between the steel ball and the output shaft increases accordingly. The resistance of the steel ball that the output shaft needs to overcome to generate relative movement with the base also increases, thereby achieving torque adjustment.

[0009] Preferably, the output shaft is provided with a limiting groove, and at least a portion of the steel ball is placed in the limiting groove. The steel ball is configured to be pressed downward to disengage from the center position of the limiting groove when the torque between the output shaft and the base exceeds a threshold. Thus, the output shaft can continue to rotate with the controller when the valve plate is rotated to the position, or the base can continue to drive the valve plate to rotate to the position when the controller stops rotating, overcoming the precision defects of the controller and the valve plate and realizing torque compensation.

[0010] Preferably, the torque value setting rule of the torque regulator is less than the torque value of the actuator, so that the output shaft can overcome the torque value of the torque regulator to achieve relative rotation.

[0011] Preferably, the adjustment assembly is provided in at least two sets, the base is provided with a mounting groove, and the adjustment assembly is disposed in the mounting groove.

[0012] Preferably, the mounting groove is stepped and includes a fixing section and a biasing section. The biasing section is located on the side close to the output shaft and its aperture matches the diameter of the steel ball. When the steel ball is pressed downward, the volume of the steel ball within the biasing section increases.

[0013] Preferably, the limiting groove is tapered; since the side of the tapered shape is inclined, when the output shaft and the base rotate relative to each other, the steel ball is gradually pressed down along the tapered surface to a position that is off-center from the center of the limiting groove.

[0014] Preferably, the torque regulator further includes an upper cover, which is a one-way open cavity. The upper cover and the base enclose a transmission cavity. The upper cover is provided with a mounting hole, and the output shaft passes through the mounting hole and is rotatably placed in the transmission cavity.

[0015] Preferably, it also includes a coupling, one end of which is connected to the actuator and the other end to the output shaft; the coupling is used to transmit the rotation of the controller to the torque regulator, thereby achieving torque compensation.

[0016] Preferably, the valve body is provided with a plurality of interfaces, which are evenly distributed in a ring along the outer side of the valve body; by rotating the valve plate, corresponding two interfaces on the valve body are connected to each other. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the adjustment component.

[0020] Figure 4 This is a cross-sectional view of the adjustment component.

[0021] Figure 5 This is an exploded cross-sectional view of the adjustment component.

[0022] Label Explanation:

[0023] A plate-type switch valve with torque compensation function includes: 1. Actuator; 2. Valve body; 3. Valve plate; 31. Interface; 32. Torque regulator; 4. Adjustment component; 5. Spring; 51. Steel ball; 52. Set screw; 53. Output shaft; 6. Limit groove; 61. Base; 7. Mounting groove; 71. Fixed section; 711. Bias section; 712. Top cover; 8. Transmission chamber; 81. Mounting hole; 82. Coupling; 9. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "horizontal", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0025] Example 1

[0026] See Figures 1 to 2 This embodiment discloses a plate-type switch valve 1 with torque compensation function, including an actuator 2, a valve body 3, and a torque regulator 4. The valve body 3 is provided with a valve plate 31. The torque regulator 4 includes an output shaft 6 and a base 7 connected by an adjustment component 5. The output shaft 6 is connected to the actuator 2, and the base 7 is connected to the valve plate 31. The actuator 2 drives the valve plate 31 to rotate through the output shaft 6 and the base 7. The adjustment component 5 is configured to be pressed downward when the torque between the output shaft 6 and the base 7 exceeds a threshold, so that the output shaft 6 and the base 7 are offset from the engagement state.

[0027] See Figures 3 to 5 When the output shaft 6 and the base 7 are in the engaged state, the steel ball 52 is located at the center of the limiting groove 61. When the output shaft 6 and the base 7 are in the deviated engaged state, the steel ball 52 moves away from the center of the limiting groove 61 and abuts against one side of the limiting groove 61. At this time, the steel ball 52 does not move away from the limiting groove 61.

[0028] To achieve the offset engagement state of the output shaft 6 and the base 7 when the adjustment component 5 is pressed downward, the base 7 is provided with a mounting groove 71. The adjustment component 5 includes a spring 51 and a steel ball 52. The spring 51 is disposed in the mounting groove 71, with one end abutting in the mounting groove 71 and the other end abutting against the steel ball 52.

[0029] The output shaft 6 is provided with a limiting groove 61, and at least a portion of the steel ball 52 is placed in the limiting groove 61. The steel ball 52 is configured to be pressed downward to disengage from the center position of the limiting groove 61 when the torque between the output shaft 6 and the base 7 exceeds a threshold. In this scheme, when the output shaft 6 overcomes the torque value of the adjusting component 3 and generates relative movement with the base 7, as the output shaft 6 rotates, the steel ball 52 is pressed downward to abut against one side of the limiting groove 61, but at least a portion of the steel ball is still located in the limiting groove. At this time, due to a certain preload between the adjusting component 5 and the output shaft 6, the output shaft 6 rotates under the action of the preload, so that the center position of the steel ball 52 and the limiting groove 61 are re-aligned.

[0030] The adjustment component 5 is provided in at least two sets, and the base 7 is provided with a mounting groove 71, and the adjustment component 5 is disposed in the mounting groove 71.

[0031] The mounting groove 71 is stepped, including a fixing section 711 and a biasing section 712. The biasing section 712 is located on the side near the output shaft 6, and its aperture matches the diameter of the steel ball 52. Specifically, the aperture of the fixing section 711 is smaller than that of the biasing section 712. The smaller aperture of the fixing section 711 in this design can limit the elastic direction of the spring 51 to remain axial. When the steel ball 52 is pressed downward, the steel ball 52 is placed inside the biasing section 712.

[0032] To ensure that the steel ball 52 can smoothly deflect when it is pressed downwards, the limiting groove 61 is designed to be conical.

[0033] The torque regulator 4 also includes an upper cover 8, which is a one-way open cavity. The upper cover 8 and the base 7 enclose a transmission cavity 81. The upper cover 8 is provided with a mounting hole 82, and the output shaft 6 is rotatably placed in the transmission cavity 81 through the mounting hole 82.

[0034] See Figures 1 to 2 In order to enable the actuator 2 and the output shaft 6 to be connected for transmission, a coupling 9 is also included, one end of which is connected to the actuator 2 and the other end is connected to the output shaft 6.

[0035] The valve body 3 is provided with a plurality of ports 32, which are evenly distributed in a ring along the outer side of the valve body 3. Specifically, there are four ports 32.

[0036] This invention features a dynamically adjustable torque regulator 4. An adjusting component 5 engages the output shaft 6 with the base 7, maintaining stable transmission under normal operating conditions. When the valve plate 31 rotates to its final position, the adjusting component 5 is pressed downwards, allowing either the output shaft 6 or the base 7 to continue rotating independently. This effectively absorbs overload torque, eliminates positioning deviations of the valve plate 31 caused by machining and assembly errors, and prevents rigid torsion between the actuator 2 and the valve plate 31, thus avoiding breakage of the connection structure. This significantly improves the overall reliability and service life of the switching valve 1. Compared to existing technologies, the plate-type switching valve 1 with torque compensation function of this invention has higher reliability and a longer service life.

[0037] Example 2

[0038] This embodiment is an improvement on Embodiment 1, and the difference between it and Embodiment 1 is in the structure of the adjustment component.

[0039] The base 7 is provided with a mounting groove 71, which passes through the base 7. The adjustment component 5 includes a spring 51, a steel ball 52 and a set screw 53. The set screw 53 closes the lower end of the mounting groove 71. One end of the spring 51 abuts against the set screw 53 and the other end abuts against the steel ball 52.

[0040] In this embodiment, the spring 51 can be compressed by adjusting the set screw 53. When the elastic force of the spring 51 increases, the pressure between the steel ball 52 and the output shaft 6 increases accordingly. The resistance that the output shaft 6 needs to overcome to generate relative movement with the base 7 also increases, thereby realizing the adjustment of the torque.

[0041] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A plate-type on / off valve with torque compensation function, characterized in that, The device includes an actuator (2), a valve body (3), and a torque regulator (4). The valve body (3) has a valve plate (31). The torque regulator (4) includes an output shaft (6) and a base (7) engaged by an adjustment assembly (5). The output shaft (6) is connected to the actuator (2), and the base (7) is connected to the valve plate (31). The actuator (2) drives the valve plate (31) to rotate through the output shaft (6) and the base (7). The adjustment assembly (5) is configured to be pressed downward when the torque between the output shaft (6) and the base (7) exceeds a threshold, so that the output shaft (6) and the base (7) are offset from the engaged state.

2. The plate-type on / off valve according to claim 1, characterized in that, The base (7) is provided with a mounting groove (71), and the adjustment component (5) includes a spring (51) and a steel ball (52). The spring (51) is disposed in the mounting groove (71), with one end abutting in the mounting groove (71) and the other end abutting in the steel ball (52).

3. The plate-type on / off valve according to claim 1, characterized in that, The base (7) is provided with a mounting groove (71) that passes through the base (7). The adjustment component (5) includes a spring (51), a steel ball (52), and a set screw (53). The set screw (53) closes the lower end of the mounting groove (71). One end of the spring (51) abuts against the set screw (53), and the other end abuts against the steel ball (52).

4. The plate-type switch valve according to claim 2 or 3, characterized in that, The output shaft (6) is provided with a limiting groove (61), at least a portion of the steel ball (52) is placed in the limiting groove (61), and the steel ball (52) is configured to be pressed downward to disengage from the center position of the limiting groove (61) when the torque between the output shaft (6) and the base (7) exceeds a threshold.

5. The plate-type on / off valve according to claim 4, characterized in that, The adjustment component (5) is provided in at least two sets, and the adjustment component (5) is disposed in the mounting slot (71).

6. The plate-type on / off valve according to claim 5, characterized in that, The mounting groove (71) is stepped and includes a fixing section (711) and a biasing section (712). The biasing section (712) is located on the side close to the output shaft (6) and its aperture matches the diameter of the steel ball (52).

7. The plate-type on / off valve according to claim 4, characterized in that, The limiting groove (61) is cone-shaped.

8. The plate-type on / off valve according to claim 1, characterized in that, The torque regulator (4) also includes an upper cover (8), which is a one-way open cavity. The upper cover (8) and the base (7) enclose a transmission cavity (81). The upper cover (8) is provided with a mounting hole (82). The output shaft (6) passes through the mounting hole (82) and is rotatably placed in the transmission cavity (81).

9. The plate-type on / off valve according to claim 1, characterized in that, It also includes a coupling (9), one end of which is connected to the actuator (2) and the other end is connected to the output shaft (6).

10. The plate-type on / off valve according to claim 1, characterized in that, The valve body (3) is provided with a plurality of interfaces (32), which are evenly distributed in a ring along the outer side of the valve body (3).

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