Electric valve with self-checking function

Abstract

The utility model relates to electric valve field, proposes an electric valve with self -checking function, including valve body, the top of valve body is connected with sealed upper cover through screw fixedly, the top fixedly connected with adjusting motor of sealed upper cover, the top fixedly connected with integrated control module of sealed upper cover. In the utility model, the core component rod -shaped displacement sensor of self -checking detection device adopts the conical structure design, and is accurately adapted to form the strict seal with the inclined inner side wall of the pre -seal ring, can effectively isolate the medium in the valve body and invade the detection area, avoid the interference of medium to detection signal, and the cooperation of valve body bottom positioning hole and positioning insert block guarantees sensor preliminary installation positioning, ensures that conical end detection probe can accurately capture sealing plate displacement track, makes the displacement data, sealing state data of collection more accurate.

Description

Technical Field

[0001] This utility model relates to the field of electric valves, specifically to an electric valve with a self-testing function. Background Technology

[0002] An electric valve is controlled by an electric actuator to open and close the valve. It can be divided into two parts: the upper part is the electric actuator and the lower part is the valve. It can not only perform the on / off function, but the regulating electric valve can also perform the valve position adjustment function.

[0003] According to a public disclosure (Publication No.: CN223469794U), an electric valve with self-testing function includes a body component, which includes a valve body and a valve port; and a flow-limiting component, which includes a baffle, a groove, a feed hole, a top block, a rotating shaft, a spring, a support frame, a rubber block, and an inner groove. The top block is connected to the upper part of the inner surface of the valve port, the rotating shaft is connected to the lower part of one side of the top block, the baffle is rotatably connected to the outer surface of the rotating shaft, and the support frame is symmetrically connected to both ends of the inner surface of the valve port. The spring is wound and connected to the outer surface of the support frame, and the other side of the spring is connected to both ends of one side of the baffle. This relates to the field of electric valve device structure technology. In actual use, existing electric valves often can only achieve simple opening and closing functions, making it difficult to accurately control the flow rate. This can lead to problems such as unstable system operation, energy waste, or product quality degradation in some processes with strict flow requirements.

[0004] In addition to the aforementioned flow rate control issues, the electric valves also suffer from insufficient accuracy in displacement data acquisition and inability to accurately determine the sealing status. This can easily lead to problems such as valve control malfunction and media leakage due to data deviations. Consequently, there is no reliable data to support the judgment of the electric valve's working status. Therefore, we propose an electric valve with a self-testing function. Utility Model Content

[0005] This invention proposes an electric valve with a self-testing function, which solves the problem of accurately judging the displacement data and sealing status data of electric valves in related technologies.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model is an electric valve with self-testing function, including a valve body, a sealing cover fixedly connected to the top of the valve body by screws, an adjusting motor fixedly connected to the top of the sealing cover, an integrated control module fixedly connected to the top of the sealing cover, a sealing plate fixedly connected to the output shaft of the adjusting motor, and a self-testing detection device provided inside the valve body.

[0008] The self-testing device includes a rod-shaped displacement sensor, which is inserted into the inner wall of the valve body. A pre-sealing ring is fixedly connected to the inner wall of the valve body. A positioning and clamping block is fixedly connected to the circumferential surface of the rod-shaped displacement sensor. A portable replacement knob is fixedly connected to the end of the rod-shaped displacement sensor away from the inner wall of the valve body. A connecting wire is fixedly connected to the bottom of the portable replacement knob.

[0009] Optionally, the end of the connecting line furthest from the rod-shaped displacement sensor is electrically connected to the integrated control module. This electrical connection ensures real-time transmission of self-test data, enabling accurate feedback and intelligent judgment of the sealing status.

[0010] Optionally, one end of the rod-shaped displacement sensor is tapered and equipped with a detection probe, and the inner wall of the pre-sealing ring is inclined. The detection probe at the tapered end of the rod-shaped displacement sensor improves detection sensitivity, and the inclined inner wall of the pre-sealing ring adapts to the tapered structure, reducing media interference during the detection process and ensuring detection accuracy.

[0011] Optionally, the conical surface of the rod-shaped displacement sensor is located on the displacement trajectory of the inner wall of the pre-sealing ring. The conical surface of the rod-shaped displacement sensor is adapted to the displacement trajectory of the inner wall of the pre-sealing ring, maintaining continuous sealing contact during displacement, preventing media leakage, and improving sealing reliability.

[0012] Optionally, the valve body is provided with a convenient replacement sealing device, which includes a spiral screw-in block. The side of the spiral screw-in block is fixedly connected to the inner wall of the valve body. A convex sealing ring is fixedly connected to the circumferential surface of the rod-shaped displacement sensor. A pressure-bearing sealing plate is fixedly connected to the inner wall of the valve body. A snap-fit ​​groove is provided on the inner wall of the spiral screw-in block. Elastic retaining balls are slidably connected to the top and bottom of the positioning and clamping block.

[0013] Optionally, the positioning and clamping block is slidably connected to the inner wall of the spiral screw-in block, and the elastic retaining ball is located on the displacement trajectory of the retaining groove. The positioning and clamping block and the spiral screw-in block slide together, and the elastic retaining ball is engaged in the retaining groove to achieve precise positioning, making installation and disassembly convenient and the connection stable.

[0014] Optionally, the convex sealing ring is located on the displacement trajectory of the pressure-bearing sealing plate. The convex sealing ring adapts to the displacement trajectory of the pressure-bearing sealing plate, resulting in a tighter seal surface under pressure, more uniform sealing pressure, and further improved leakage prevention.

[0015] Optionally, a positioning hole is provided at the bottom of the valve body, and the inner wall of the positioning hole is located on the displacement trajectory of the positioning and clamping block. The positioning hole of the valve body is adapted to the displacement trajectory of the positioning and clamping block, improving the coaxiality of the rod-shaped displacement sensor and ensuring the stability and accuracy of the detection data.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] 1. The core component of the self-testing detection device in this utility model, the rod-shaped displacement sensor, adopts a conical structure design. It is precisely matched with the inclined inner wall of the pre-sealing ring to form a tight seal, which can effectively isolate the internal medium of the valve body from entering the detection area and avoid the interference of the medium on the detection signal. At the same time, the cooperation between the positioning hole at the bottom of the valve body and the positioning insertion block ensures the initial installation and positioning of the sensor, ensuring that the conical end detection probe can accurately capture the displacement trajectory of the sealing plate, making the collected displacement data and sealing status data more accurate, and providing a reliable data basis for the accurate judgment of the working status of the electric valve.

[0018] 2. In this utility model, the spiral screw-in block, the convex sealing ring and the pressure-bearing sealing plate of the sealing device are conveniently replaced to form a double seal. The snap-fit ​​groove and the elastic snap ball cooperate to position and tighten the block, so as to realize the quick disassembly and assembly of the rod displacement sensor while enhancing the sealing performance. Attached Figure Description

[0019] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0020] Figure 1 This is a structural schematic diagram of the overall three-dimensional appearance of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the valve body of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the self-testing detection device of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the convenient sealing device of this utility model;

[0024] Figure 5 This utility model Figure 4 A three-dimensional magnified structural diagram of A.

[0025] In the diagram: 1. Valve body; 2. Sealing cover; 3. Adjusting motor; 4. Integrated control module; 5. Sealing plate; 6. Self-testing device; 601. Rod-shaped displacement sensor; 602. Pre-sealing ring; 603. Portable replacement knob; 604. Positioning and clamping block; 605. Connecting wire; 7. Convenient replacement sealing device; 701. Spiral screw-in block; 702. Convex sealing ring; 703. Pressure-bearing sealing plate; 704. Snap-fit ​​groove; 705. Elastic retaining ball. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0027] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Example 1

[0031] Reference Figures 1-5 This is the first embodiment of the present invention, which proposes an electric valve with a self-testing function, including a valve body 1, a sealing cover 2 fixedly connected to the top of the valve body 1 by screws, an adjusting motor 3 fixedly connected to the top of the sealing cover 2, an integrated control module 4 fixedly connected to the top of the sealing cover 2, a sealing plate 5 fixedly connected to the output shaft of the adjusting motor 3, and a self-testing detection device 6 provided inside the valve body 1.

[0032] The self-testing device 6 includes a rod-shaped displacement sensor 601, which is inserted into the inner wall of the valve body 1. A pre-sealing ring 602 is fixedly connected to the inner wall of the valve body 1. A positioning and clamping block 604 is fixedly connected to the circumferential surface of the rod-shaped displacement sensor 601. A portable replacement knob 603 is fixedly connected to the end of the rod-shaped displacement sensor 601 away from the inner wall of the valve body 1. A connecting wire 605 is fixedly connected to the bottom of the portable replacement knob 603.

[0033] The end of the connecting wire 605 furthest from the rod-shaped displacement sensor 601 is electrically connected to the integrated control module 4. Connecting wire 605 electrically connects the rod-shaped displacement sensor 601 to the integrated control module 4, ensuring real-time transmission of self-test data and achieving accurate feedback and intelligent judgment of the sealing status.

[0034] One end of the rod-shaped displacement sensor 601 is tapered and equipped with a detection probe, while the inner wall of the pre-sealing ring 602 is inclined. The detection probe at the tapered end of the rod-shaped displacement sensor 601 enhances detection sensitivity, and the inclined inner wall of the pre-sealing ring 602 adapts to the tapered structure, reducing media interference during the detection process and ensuring detection accuracy.

[0035] The conical surface of the rod-shaped displacement sensor 601 is located on the displacement trajectory of the inner wall of the pre-sealing ring 602. The conical surface of the rod-shaped displacement sensor 601 is adapted to the displacement trajectory of the inner wall of the pre-sealing ring 602, maintaining continuous sealing contact during displacement, avoiding media leakage, and improving sealing reliability.

[0036] In this embodiment, when the electric valve receives an opening or closing command, the regulating motor 3 starts and drives the sealing plate 5 to move. During this process, the self-testing detection device 6 works in real time throughout, facilitating the replacement of the sealing device 7 and continuously maintaining sealing and positioning stability. When the regulating motor 3 drives the sealing plate 5 to move along the inside of the valve body 1, the detection probe at the conical end of the rod-shaped displacement sensor 601 collects the displacement data of the sealing plate 5 in real time, while monitoring the sealing status between itself and the valve body 1. Since the conical surface of the rod-shaped displacement sensor 601 is located on the displacement trajectory of the inner wall of the pre-sealing ring 602, even if the sealing plate 5 causes slight vibration of the valve body 1 during movement, or the rod-shaped displacement sensor 601 causes slight displacement due to medium pressure, the conical surface will remain stable. The inclined inner wall of the pre-sealing ring 602 can still maintain a continuous sealing contact with the surface, preventing the medium from entering the detection area and interfering with the detection signal. The displacement data and sealing status data collected by the detection probe are transmitted to the integrated control module 4 in real time through the connecting line 605. The integrated control module 4 analyzes and processes the data to determine whether the position of the sealing plate 5 is accurate and whether the seal is reliable. If the data is within the preset normal range, the electric valve is determined to be working normally, and the control signal is continuously output to ensure the stable operation of the valve. If the data exceeds the preset range, such as the excessive displacement deviation of the sealing plate 5 or the appearance of leakage on the sealing surface, the integrated control module 4 immediately issues an alarm signal and can control the motor 3 to stop according to the preset program to prevent the fault from escalating.

[0037] Example 2

[0038] Reference Figures 1-5This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a convenient replacement sealing device 7 is provided inside the valve body 1. The convenient replacement sealing device 7 includes a spiral screw-in block 701. The side of the spiral screw-in block 701 is fixedly connected to the inner wall of the valve body 1. A convex sealing ring 702 is fixedly connected to the circumferential surface of the rod-shaped displacement sensor 601. A pressure-bearing sealing plate 703 is fixedly connected to the inner wall of the valve body 1. A snap-fit ​​groove 704 is provided on the inner wall of the spiral screw-in block 701. An elastic retaining ball 705 is slidably connected to the top and bottom of the positioning and clamping block 604.

[0039] The positioning and clamping block 604 is slidably connected to the inner wall of the spiral screw-in block 701, and the elastic retaining ball 705 is located on the displacement trajectory of the retaining groove 704. The positioning and clamping block 604 and the spiral screw-in block 701 are slidably engaged, and the elastic retaining ball 705 is engaged in the retaining groove 704 to achieve precise positioning, making installation and disassembly convenient and the connection stable.

[0040] The convex sealing ring 702 is located on the displacement trajectory of the pressure-bearing sealing plate 703. The convex sealing ring 702 is adapted to the displacement trajectory of the pressure-bearing sealing plate 703, and the sealing surface fits more tightly after pressure is applied, the sealing pressure is uniform, and the anti-leakage effect is further improved.

[0041] A positioning hole is provided at the bottom of the valve body 1, and the inner wall of the positioning hole is located on the displacement trajectory of the positioning insertion block 604. The positioning hole of the valve body 1 is adapted to the displacement trajectory of the positioning insertion block 604, improving the coaxiality of the rod-shaped displacement sensor 601 and ensuring the stability and accuracy of the detection data.

[0042] Compared to Embodiment 1, further, the operator inserts the rod-shaped displacement sensor 601 into the inner wall of the valve body 1 using the portable replacement knob 603. During the process, the positioning and clamping block 604 slides along the inner wall of the spiral insertion block 701. When the positioning and clamping block 604 slides to the preset position, the elastic retaining balls 705 at its top and bottom pop out under their own elasticity and accurately engage in the retaining groove 704 on the inner wall of the spiral insertion block 701, achieving the initial positioning and fixation of the rod-shaped displacement sensor 601. At the same time, the convex sealing ring 702 on the circumferential surface of the rod-shaped displacement sensor 601 is tightly fitted with the pressure-bearing sealing plate 703 on the inner wall of the valve body 1, forming the first sealing line. Simultaneously, the pre-sealing ring 602 on the inner wall of the valve body 1 precisely aligns with the conical surface of the rod-shaped displacement sensor 601. Because the inner wall of the pre-sealing ring 602 has an inclined structure, it perfectly matches the conical surface, forming the second sealing line. The double sealing ensures that the internal medium of the valve body 1 will not leak into the sensor installation area. In addition, the positioning hole at the bottom of the valve body 1 precisely corresponds to the side of the positioning insertion block 604, further improving the coaxiality of the rod displacement sensor 601 and avoiding the impact of installation misalignment on subsequent detection accuracy. When disassembly is required, the operator first disconnects the integrated control module 4 from the connecting line 605, and then rotates the portable replacement knob 603. The knob drives the rod displacement sensor 601 to rotate synchronously. During the rotation, the positioning insertion block 604 is subjected to rotational torque, and the elastic retaining balls 705 at its top and bottom are squeezed back into the positioning insertion block 604, freeing it from the restriction of the retaining groove 704. The portable replacement knob 603 is pulled outward, and the positioning insertion block 604 slides out along the inner wall of the spiral insertion block 701. The convex sealing ring 702 separates from the pressure sealing plate 703, and the conical surface of the rod displacement sensor 601 separates from the pre-sealing ring 602. Finally, the rod displacement sensor 601 is completely removed from the valve body 1, completing the disassembly.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electric valve with a self-testing function, characterized in that, The valve body (1) includes a valve body (1), a sealing cover (2) is fixedly connected to the top of the valve body (1) by screws, an adjusting motor (3) is fixedly connected to the top of the sealing cover (2), an integrated control module (4) is fixedly connected to the top of the sealing cover (2), a sealing plate (5) is fixedly connected to the output shaft of the adjusting motor (3), and a self-testing detection device (6) is provided inside the valve body (1). The self-testing device (6) includes a rod-shaped displacement sensor (601), which is inserted into the inner wall of the valve body (1). A pre-sealing ring (602) is fixedly connected to the inner wall of the valve body (1), and a positioning and clamping block (604) is fixedly connected to the circumferential surface of the rod-shaped displacement sensor (601).

2. An electric valve with self-testing function according to claim 1, characterized in that, The rod-shaped displacement sensor (601) is fixedly connected to a portable replacement knob (603) at one end away from the inner wall of the valve body (1), and a connecting wire (605) is fixedly connected to the bottom of the portable replacement knob (603).

3. An electric valve with self-testing function according to claim 2, characterized in that, The end of the connecting line (605) away from the rod-shaped displacement sensor (601) is electrically connected to the integrated control module (4).

4. An electric valve with self-testing function according to claim 3, characterized in that, One end of the rod-shaped displacement sensor (601) is tapered and equipped with a detection probe, and the inner wall of the pre-sealing ring (602) is inclined.

5. An electric valve with self-testing function according to claim 4, characterized in that, The conical surface of the rod-shaped displacement sensor (601) is located on the displacement trajectory of the inner wall of the pre-sealing ring (602).

6. An electric valve with self-testing function according to claim 5, characterized in that, The valve body (1) is provided with a convenient replacement sealing device (7). The convenient replacement sealing device (7) includes a spiral screw-in block (701). The side of the spiral screw-in block (701) is fixedly connected to the inner wall of the valve body (1). A convex sealing ring (702) is fixedly connected to the circumferential surface of the rod-shaped displacement sensor (601). A pressure-bearing sealing plate (703) is fixedly connected to the inner wall of the valve body (1).

7. An electric valve with self-testing function according to claim 6, characterized in that, The inner wall of the spiral screw-in block (701) is provided with a snap-fit ​​groove (704), and the top and bottom of the positioning and clamping block (604) are slidably connected with elastic locking balls (705).

8. An electric valve with self-testing function according to claim 7, characterized in that, The positioning and clamping block (604) is slidably connected to the inner wall of the spiral screw-in block (701), and the elastic locking ball (705) is located on the displacement trajectory of the locking groove (704).

9. An electric valve with self-testing function according to claim 8, characterized in that, The convex sealing ring (702) is located on the displacement trajectory of the pressure-bearing sealing plate (703).

10. An electric valve with self-testing function according to claim 9, characterized in that, The bottom of the valve body (1) is provided with a positioning hole, and the inner wall of the positioning hole is located on the displacement trajectory of the positioning insertion block (604).

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