Mechanical auxiliary self-locking structure of electric valve

Abstract

The utility model provides a mechanical auxiliary self-locking structure of an electrically operated valve, and relates to the field of electrically operated valves. The mechanical auxiliary self-locking structure of the electric valve comprises a valve body, an adjusting mechanism is arranged on the surface of the valve body and comprises a fixing shell, a control mechanism is arranged in the middle of the valve body and comprises a gate and a driven gear, a power gear is rotationally connected to the interior of the fixing shell, and the power gear is rotationally connected with the valve body. An auxiliary mechanism is arranged in the fixed shell and comprises a rotating gear and a sliding toothed plate, and the rotating gear is rotationally connected with the fixed shell. According to the mechanical auxiliary self-locking structure of the electrically operated valve, opening and closing of the valve are controlled electrically or manually by moving the fixing shell, the auxiliary opening and closing efficiency of the valve is improved, the driven gear drives the gate to rotate through rotation of the power gear, then the valve body is controlled to be opened and closed, the rotating gear is meshed with the driven gear, and the valve is rapidly controlled to be closed and locked manually. And the use safety and stability of the valve are improved.

Description

Technical Field

[0001] The utility model relates to a self-locking structure for an electric valve, specifically a mechanical auxiliary self-locking structure for an electric valve, belonging to the technical field of electric valves. Background Technique

[0002] The operating torque of an electric valve is larger than that of an ordinary valve. The opening and closing speeds of an electric valve can be adjusted. It has a simple structure and is easy to maintain. It can be used to control the flow of various types of fluids such as various corrosive media and radioactive media. During the operation of a traditional pneumatic valve, due to the buffering characteristics of the gas itself, it is not easily damaged due to jamming, but it must have a gas source, and its control system is also more complex than that of an electric valve.

[0003] The utility model patent with the patent number CN211779348U provides an electric valve, including a valve body. The left side of the top of the valve body is fixedly connected with a fixing frame through bolts. The top of the fixing frame is fixedly connected with an electric actuator through bolts. Fixing boxes are fixedly connected to the four peripheries of the top of the fixing frame, and the electric actuator is located inside the fixing boxes. In the utility model, the user observes the temperature inside the fixing box through a display screen. If the temperature is too high, the user replaces the hot air inside the fixing box through an exhaust fan, thereby cooling the inner cavity of the fixing box to prevent the temperature from being too high and damaging the electric actuator.

[0004] In order to reduce the difficulty of opening and closing the valve, an electric valve is used in the pipeline. Although the electric valve in the above patent improves the service life, when the power is cut off or an abnormal situation occurs, it is necessary to disassemble the electric actuator to close the valve, and the pipeline closing is relatively cumbersome. For this reason, we provide a mechanical auxiliary self-locking structure for an electric valve to solve the above problems. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] The purpose of the present utility model is to provide a mechanical auxiliary self-locking structure for an electric valve to solve the problem that the electric valve in the comparative document is relatively cumbersome to close.

[0007] (II) Technical Solutions

[0008] The present utility model is realized through the following technical solutions: a mechanical auxiliary self-locking structure for an electric valve.

[0009] It includes a valve body, on the surface of which an adjusting mechanism is provided. The adjusting mechanism includes a fixed shell. In the middle of the valve body, a control mechanism is provided. The control mechanism includes a gate and a driven gear. Inside the fixed shell, a driving gear is rotatably connected. Inside the fixed shell, an auxiliary mechanism is provided. The auxiliary mechanism includes a rotating gear and a sliding tooth plate. The rotating gear is rotatably connected to the fixed shell, and the sliding tooth plate is slidably connected to the fixed shell.

[0010] Preferably, the bottom surface of the fixed shell is fixedly connected with a fixed guide rail. Inside the fixed guide rail, a fixed slot is slidably connected, and the fixed slot is fixedly connected with the valve body. Inside the valve body, two sliding grooves are fixedly connected. Through the fixed guide rail and the fixed slot, the stability of the lateral movement of the fixed shell is improved.

[0011] Preferably, a clamping ring is fixedly connected to the surface of the fixed shell. Inside the clamping ring, a sliding clamping rod is slidably connected, and the sliding clamping rod is clamped with the adjacent sliding groove. On the surface of the clamping ring, a first telescopic spring is fixedly connected, and the top end of the first telescopic spring is fixedly connected with the sliding clamping rod. Through the first telescopic spring, the clamping of the sliding clamping rod with the adjacent sliding groove is made more stable.

[0012] Preferably, a sealing gasket is fixedly connected inside the valve body, and the gate is clamped with the gate. In the middle of the gate, a rotating shaft is fixedly connected. The top end of the rotating shaft sequentially penetrates through the sealing gasket and the valve body and is fixedly connected with the driven gear, and the rotating shaft is rotatably connected with the sealing gasket and the valve body. Through the sealing gasket, the sealing performance of the valve body closing is improved.

[0013] Preferably, a motor is fixedly connected to the surface of the fixed shell, and the output end of the motor is fixedly connected with the driving gear. The driven gear is slidably connected to the fixed shell, and the driving gear is meshed with the driven gear. By controlling the rotation of the driving gear by the motor, the driven gear can drive the gate to rotate.

[0014] Preferably, a rotating ring is fixedly connected to the top end of the rotating gear. Inside the middle of the rotating ring, a pressing rod is slidably connected. The rotating gear is meshed with the driven gear, and the sliding tooth plate is clamped with the rotating gear. The pressing rod controls the rotation of the rotating gear through the rotating ring, and then manually controls the closing of the valve body.

[0015] Preferably, a second telescopic spring is fixedly connected to the surface of the sliding tooth plate, and the second telescopic spring is fixedly connected with the fixed shell. In the middle of the sliding tooth plate, a pulling rod is fixedly connected, and the pulling rod is slidably connected to the fixed shell. Inside the middle of the pulling rod, a limiting clamping rod is slidably connected. Through the limiting clamping rod and the pulling rod, the sliding tooth plate is pulled away from the rotating gear.

[0016] The present utility model provides an electric valve mechanical auxiliary self-locking structure, and its beneficial effects are as follows:

[0017] The mechanical auxiliary self-locking structure of this electric valve controls whether to control the opening and closing of the valve electrically or manually by moving the fixed shell, improving the efficiency of the auxiliary opening and closing of the valve. By rotating the driving gear, the driven gear drives the gate to rotate, thereby controlling the opening and closing of the valve body. By meshing the rotating gear with the driven gear, the gate is manually rotated to improve the efficiency of the opening and closing of the valve body. By meshing the sliding tooth plate with the rotating gear, the rotating gear is fixed to prevent the gate from rotating randomly and improve the sealing performance when the valve body is closed.

[0018] The mechanical auxiliary self-locking structure of this electric valve limits the fixed shell through the fixed guide rail and the fixed groove, fixes the sliding clamping rod through the snap ring, fixes the position of the fixed shell by inserting the sliding clamping rod into the inside of the sliding groove, makes the sliding clamping rod more firmly clamped with the adjacent sliding groove through the first telescopic spring, improves the sealing performance of the valve body when it is closed through the sealing gasket, and connects the driven gear and the gate through the rotating shaft so that the driven gear can drive the gate to rotate.

[0019] The mechanical auxiliary self-locking structure of this electric valve controls the rotation of the driving gear through the motor, so that the driven gear can drive the gate to rotate. The pressure rod makes the rotating gear drive the driven gear to rotate through the rotating ring, thereby manually controlling the closing of the valve body. The second telescopic spring provides a thrust to the sliding tooth plate, so that the sliding tooth plate meshes with the rotating gear to fix the rotating gear and prevent the rotating gear from rotating. The sliding tooth plate and the rotating gear are pulled away through the limit clamping rod and the pulling rod. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the sectional structure of the valve body of the present utility model;

[0022] Figure 3 It is a schematic diagram of the connection structure of the sliding tooth plate of the present utility model;

[0023] Figure 4 For the present utility model Figure 1 Enlarged view of the structure of part A.

[0024]

Description of the Symbols of the Main Components

[0025] 1. Valve body;

[0026] 2. Adjusting mechanism; 201. Fixed shell; 202. Fixed groove; 203. Fixed guide rail; 204. Snap ring; 205. Sliding groove; 206. First telescopic spring; 207. Sliding clamping rod;

[0027] 3. Control mechanism; 301. Gate; 302. Rotating shaft; 303. Sealing gasket; 304. Driven gear; 305. Driving gear; 306. Electric motor

[0028] 4. Auxiliary mechanism; 401. Rotating gear; 402. Rotating ring; 403. Pressing rod; 404. Sliding tooth plate; 405. Pulling rod; 406. Limit clamping rod; 407. Second telescopic spring Detailed implementation manner

[0029] An embodiment of the utility model provides an electric valve mechanical auxiliary self-locking structure

[0030] Please refer to Figure 1 and Figure 4 , including a valve body 1. An adjusting mechanism 2 is arranged on the surface of the valve body 1. The adjusting mechanism 2 includes a fixed shell 201. By moving the fixed shell 201, it is possible to control whether the valve is opened and closed electrically or manually, improving the efficiency of the auxiliary opening and closing of the valve

[0031] A fixed guide rail 203 is fixedly connected to the bottom surface of the fixed shell 201. A fixed groove 202 is slidably connected inside the fixed guide rail 203, and the fixed groove 202 is fixedly connected to the valve body 1. Two sliding grooves 205 are fixedly connected inside the valve body 1. By means of the fixed guide rail 203 and the fixed groove 202, the fixed shell 201 is limited, improving the stability of the lateral movement of the fixed shell 201. By means of the two sliding grooves 205, it is possible to control whether it is electric or manual

[0032] A snap ring 204 is fixedly connected to the surface of the fixed shell 201. A sliding clamping rod 207 is slidably connected inside the snap ring 204, and the sliding clamping rod 207 is clamped with the adjacent sliding groove 205. A first telescopic spring 206 is fixedly connected to the surface of the snap ring 204, and the top end of the first telescopic spring 206 is fixedly connected to the sliding clamping rod 207. By means of the snap ring 204, the sliding clamping rod 207 is fixed. By inserting the sliding clamping rod 207 into the inside of the sliding groove 205, the position of the fixed shell 201 is fixed. By means of the first telescopic spring 206, a downward pulling force is provided to the sliding clamping rod 207, making the sliding clamping rod 207 more firmly clamped with the adjacent sliding groove 205

[0033] Please refer to Figure 2 , a control mechanism 3 is arranged in the middle of the valve body 1. The control mechanism 3 includes a gate 301 and a driven gear 304. A driving gear 305 is rotatably connected inside the fixed shell 201. By rotating the driving gear 305, the driven gear 304 drives the gate 301 to rotate, thereby controlling the opening and closing of the valve body 1

[0034] A gasket 303 is fixedly connected inside the valve body 1, and the gate 301 is snap-connected to the gate 301. A rotating shaft 302 is fixedly connected to the middle of the gate 301. The top of the rotating shaft 302 sequentially penetrates through the gasket 303 and the valve body 1 and is fixedly connected to the driven gear 304. The rotating shaft 302 is rotatably connected to the gasket 303 and the valve body 1. Through the gasket 303, the gap between the gate 301 and the valve body 1 is sealed, improving the sealing performance of the valve body 1 when it is closed. The driven gear 304 is connected to the gate 301 through the rotating shaft 302, enabling the driven gear 304 to drive the gate 301 to rotate.

[0035] A motor 306 is fixedly connected to the surface of the fixed housing 201, and the output end of the motor 306 is fixedly connected to the driving gear 305. The driven gear 304 is slidably connected to the fixed housing 201, and the driving gear 305 is meshed with the driven gear 304. By controlling the rotation of the driving gear 305 through the motor 306, the driven gear 304 can drive the gate 301 to rotate.

[0036] The motor 306 is a prior art, and this application will not elaborate on its detailed parameters and models.

[0037] Please refer again to Figure 2 and Figure 3 , an auxiliary mechanism 4 is arranged inside the fixed housing 201. The auxiliary mechanism 4 includes a rotating gear 401 and a sliding tooth plate 404. The rotating gear 401 is rotatably connected to the fixed housing 201, and the sliding tooth plate 404 is slidably connected to the fixed housing 201. By meshing the rotating gear 401 with the driven gear 304, the gate 301 is manually controlled to rotate, improving the opening and closing efficiency of the valve body 1. By meshing the sliding tooth plate 404 with the rotating gear 401, the rotating gear 401 is fixed to prevent the gate 301 from rotating randomly, improving the sealing performance of the valve body 1 when it is closed.

[0038] A rotating ring 402 is fixedly connected to the top of the rotating gear 401. A pressure rod 403 is slidably connected to the middle of the rotating ring 402. The rotating gear 401 is meshed with the driven gear 304, and the sliding tooth plate 404 is snap-connected to the rotating gear 401. The pressure rod 403 enables the rotating gear 401 to drive the driven gear 304 to rotate through the rotating ring 402, thereby manually controlling the closing of the valve body 1.

[0039] The surface of the sliding tooth plate 404 is fixedly connected with a second telescopic spring 407, and the second telescopic spring 407 is fixedly connected with the fixed shell 201. The middle of the sliding tooth plate 404 is fixedly connected with a pulling rod 405, and the pulling rod 405 is slidably connected with the fixed shell 201. The middle of the pulling rod 405 is slidably connected with a limiting clamping rod 406. The second telescopic spring 407 provides a thrust to the sliding tooth plate 404, so that the sliding tooth plate 404 meshes with the rotating gear 401 to fix the rotating gear 401 and prevent the rotating gear 401 from rotating. By means of the limiting clamping rod 406 and the pulling rod 405, the sliding tooth plate 404 is pulled away from the rotating gear 401. The limiting clamping rod 406 lies across the surface of the fixed shell 201 to fix the pulling rod 405, so that the sliding tooth plate 404 disengages from the rotating gear 401, facilitating the rotation of the rotating gear 401.

[0040] When the present utility model is in use: the fixed shell 201 is limited by the fixed guide rail 203 and the fixed groove 202. By inserting the sliding clamping rod 207 into different sliding grooves 205, it is controlled whether to control the valve opening and closing electrically or manually. When controlling electrically, the power gear 305 is rotated by the motor 306, so that the driven gear 304 can drive the gate 301 to rotate. When manual control is required, the sliding clamping rod 207 is pulled upward, and then the fixed shell 201 is moved to disengage the power gear 305 from the driven gear 304. The rotating gear 401 meshes with the driven gear 304, and then the sliding clamping rod 207 is released. The first telescopic spring 206 provides a downward pulling force to the sliding clamping rod 207, so that the sliding clamping rod 207 is clamped with the corresponding sliding groove 205. By means of the limiting clamping rod 406 and the pulling rod 405, the sliding tooth plate 404 is pulled away from the rotating gear 401. The pressing rod 403 enables the rotating gear 401 to drive the driven gear 304 to rotate through the rotating ring 402, thereby manually controlling the closing of the valve body 1. After the valve body 1 is closed, the second telescopic spring 407 provides a thrust to the sliding tooth plate 404, so that the sliding tooth plate 404 meshes with the rotating gear 401 to fix the rotating gear 401. Through the above device, when the electric mechanism fails, the valve can be quickly controlled to close and lock manually, improving the safety and stability of valve use.

[0041] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A mechanically assisted self-locking structure for an electric valve, comprising a valve body (1), characterized in that: The surface of the valve body (1) is provided with an adjusting mechanism (2), the adjusting mechanism (2) comprising a fixed shell (201), a control mechanism (3) is provided in the middle of the valve body (1), the control mechanism (3) comprising a gate (301) and a driven gear (304), the interior of the fixed shell (201) is rotatably connected to a power gear (305), an auxiliary mechanism (4) is provided inside the fixed shell (201), the auxiliary mechanism (4) comprises a rotating gear (401) and a sliding tooth plate (404), the rotating gear (401) is rotatably connected to the fixed shell (201), and the sliding tooth plate (404) is slidably connected to the fixed shell (201).

2. The electric valve mechanical auxiliary self-locking structure according to claim 1 is characterized in that: The bottom surface of the fixed shell (201) is fixedly connected to a fixed guide rail (203), the interior of the fixed guide rail (203) is slidably connected to a fixed groove (202), and the fixed groove (202) is fixedly connected to the valve body (1), and the interior of the valve body (1) is fixedly connected to two sliding grooves (205).

3. The electric valve mechanical auxiliary self-locking structure according to claim 2 is characterized in that: A clamping ring (204) is fixedly connected to the surface of the fixed shell (201), a sliding clamping rod (207) is slidably connected to the interior of the clamping ring (204), and the sliding clamping rod (207) is clamped with an adjacent sliding groove (205), a first telescopic spring (206) is fixedly connected to the surface of the clamping ring (204), and the top end of the first telescopic spring (206) is fixedly connected to the sliding clamping rod (207).

4. The electric valve mechanical auxiliary self-locking structure according to claim 1, characterized in that: A sealing gasket (303) is fixedly connected to the interior of the valve body (1), and the gate (301) is clamped with the gate (301). A rotating shaft (302) is fixedly connected to the middle of the gate (301). The top end of the rotating shaft (302) passes through the sealing gasket (303) and the valve body (1) in sequence and is fixedly connected to the driven gear (304). The rotating shaft (302) is rotationally connected to the sealing gasket (303) and the valve body (1).

5. The electric valve mechanical auxiliary self-locking structure according to claim 1, characterized in that: The surface of the fixed shell (201) is fixedly connected to a motor (306), and the output end of the motor (306) is fixedly connected to a power gear (305), the driven gear (304) is slidably connected to the fixed shell (201), and the power gear (305) is meshingly connected to the driven gear (304).

6. The electric valve mechanical auxiliary self-locking structure according to claim 1, characterized in that: The top end of the rotating gear (401) is fixedly connected to a rotating ring (402), the middle part of the rotating ring (402) is slidably connected to a pressure rod (403), the rotating gear (401) is meshed with the driven gear (304), and the sliding toothed plate (404) is clamped with the rotating gear (401).

7. The electric valve mechanical auxiliary self-locking structure according to claim 1, characterized in that: A second telescopic spring (407) is fixedly connected to the surface of the sliding tooth plate (404), and the second telescopic spring (407) is fixedly connected to the fixed shell (201); a pulling rod (405) is fixedly connected to the middle of the sliding tooth plate (404), and the pulling rod (405) is slidably connected to the fixed shell (201); and a limiting clamping rod (406) is slidably connected to the middle of the pulling rod (405).

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