An electric control valve with self-locking structure

Abstract

The utility model discloses an electric control valve with a self-locking structure, including a valve housing, a valve plate rotatably arranged inside the valve housing, and a valve stem fixed to the top of the valve plate, the top of the valve housing is fixedly connected to a box body, the upper end of the valve stem movably penetrates into the box body and is fixedly connected to a worm gear, a first motor is fixedly installed on the outer wall of the box body, the output end of the first motor penetrates into the box body and is fixedly connected to a worm, and the worm and the worm gear are meshed. In the utility model, by starting the first motor, the worm is driven to rotate, the worm drives the worm gear to rotate, and the worm gear drives the valve plate to rotate through the valve stem, so that the valve housing is in a closed or conductive state; and because the worm and the worm gear have a self-locking function, the valve plate is in a current stable state, further avoiding loosening and rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of electric control valves, in particular to an electric control valve with a self-locking structure. Background Art

[0002] The electric valve can be divided into two parts, the upper part is the electric actuator, and the lower part is the valve. The electric valve uses electrical energy as power to drive the valve through the electric actuator to achieve the opening and closing action of the valve. Thereby achieving the purpose of opening and closing the pipeline medium.

[0003] Since the water pressure inside the water pipe will indeed produce squeezing pressure on the valve body of the valve, it will cause the valve of the control valve to loosen and deflect, resulting in water leakage, so change is urgently needed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an electric control valve with a self-locking structure, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an electric control valve with a self-locking structure, comprising a valve housing, a valve plate rotatably arranged inside the valve housing, and a valve stem fixed to the top of the valve plate, the top of the valve housing is fixedly connected to a box body, the upper end of the valve stem movably penetrates into the interior of the box body and is fixedly connected to a worm gear, a first motor is fixedly installed on the outer wall of the box body, the output end of the first motor penetrates into the interior of the box body and is fixedly connected to a worm, and the worm gear is meshingly arranged.

[0008] Preferably, a turntable is fixedly connected to the top end of the valve stem, a drive assembly is fixedly installed on the inner wall of the box body, and an arc-shaped clamping strip is provided on the drive assembly. When the arc-shaped clamping strip abuts against the turntable, the turntable is locked.

[0009] Preferably, the driving assembly includes a second motor fixedly mounted on the outer wall of the box body, and a screw rod rotatably inserted between the inner walls of the box body, the output end of the second motor is fixedly connected to the screw rod, a nut block is threadedly sleeved on the screw rod, one end of the nut block is fixedly connected to an arc-shaped clamp strip, and a limiting rod is fixedly connected between the inner walls of the box body, and the limiting rod movably passes through the nut block setting.

[0010] Preferably, the limiting rod is a smooth rod, and the limiting rod is a round rod structure.

[0011] Preferably, the valve plate is a disc-shaped structure.

[0012] (III) Beneficial effects

[0013] The utility model provides an electric control valve with a self-locking structure, which has the following beneficial effects:

[0014] 1. In the utility model, by starting the first motor, the worm is driven to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the valve plate to rotate through the valve stem, so that the valve housing is in a closed or conductive state; and because the worm and the worm wheel have a self-locking function, the valve plate is in a current stable state, further avoiding loosening and rotation, and preventing water leakage.

[0015] 2. In the utility model, by starting the second motor, the screw is driven to rotate, the screw drives the nut block to move linearly, and the nut block drives the arc-shaped clamping strip to approach the turntable. When the arc-shaped clamping strip contacts the turntable, the turntable is locked, thereby further preventing the valve plate from loosening or deflecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front perspective structural diagram of an electric control valve with a self-locking structure proposed by the utility model;

[0017] Figure 2 This is a cross-sectional three-dimensional structural diagram of an electric control valve with a self-locking structure proposed by the utility model;

[0018] Figure 3 This is a diagram showing the internal structure of a box of an electric control valve with a self-locking structure proposed by the utility model;

[0019] Figure 4 for Figure 2 Enlarged structural diagram at point A.

[0020] In the figure: 1. valve housing; 2. valve plate; 3. box body; 4. valve stem; 5. worm gear; 6. worm; 7. first motor; 8. turntable; 9. second motor; 10. screw; 11. limit rod; 12. nut block; 13. arc clamping strip. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 4The utility model provides a technical solution: an electric control valve with a self-locking structure, including a valve housing 1, a valve plate 2 rotatably arranged inside the valve housing 1, and a valve stem 4 fixed to the top of the valve plate 2. The top of the valve housing 1 is fixedly connected to a box body 3, the upper end of the valve stem 4 movably penetrates into the box body 3 and is fixedly connected to a worm gear 5, a first motor 7 is fixedly installed on the outer wall of the box body 3, the output end of the first motor 7 penetrates into the box body 3 and is fixedly connected to a worm 6, and the worm 6 is meshed with the worm gear 5.

[0023] By starting the first motor 7, the worm 6 is driven to rotate, the worm 6 drives the worm wheel 5 to rotate, and the worm wheel 5 drives the valve plate 2 to rotate through the valve stem 4, so that the valve housing 1 is in a closed or conductive state; and because the worm 6 and the worm wheel 5 have a self-locking function, the valve plate 2 is in a current stable state, further preventing the valve plate 2 from loosening and rotating, preventing water leakage, and ensuring normal use.

[0024] In addition, in order to improve the stability of the valve plate 2, a turntable 8 is fixedly connected to the top of the valve stem 4, and a driving assembly is fixedly installed on the inner wall of the box body 3. An arc-shaped clamp 13 is provided on the driving assembly. When the arc-shaped clamp 13 abuts against the turntable 8, the turntable 8 is locked.

[0025] The driving assembly includes a second motor 9 fixedly mounted on the outer wall of the box body 3, and a screw 10 rotatably inserted between the inner walls of the box body 3. The output end of the second motor 9 is fixedly connected to the screw 10. A nut block 12 is threadedly sleeved on the screw 10. One end of the nut block 12 is fixedly connected to an arc-shaped clamping strip 13. A limiting rod 11 is fixedly connected between the inner walls of the box body 3, and the limiting rod 11 movably passes through the nut block 12.

[0026] Start the second motor 9 to drive the screw 10 to rotate, the screw 10 drives the nut block 12 to move linearly, and the nut block 12 drives the arc clamp 13 to approach the turntable 8. When the arc clamp 13 contacts the turntable 8, the turntable 8 is locked, thereby further preventing the valve plate 2 from loosening or deflecting.

[0027] The limiting rod 11 is a smooth rod, and the limiting rod 11 is a round rod structure. The above structure can reduce the wear when the limiting rod 11 contacts the nut block 12, so that the nut block 12 can move linearly in a smooth state.

[0028] The valve plate 2 is a disc-shaped structure, which controls the passage of the fluid by rotating, and is intended to ensure that the fluid can pass smoothly or be blocked.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric control valve with a self-locking structure, characterized in that: It comprises a valve housing (1), a valve plate (2) rotatably arranged inside the valve housing (1), and a valve stem (4) fixed to the top of the valve plate (2); the top of the valve housing (1) is fixedly connected to a box body (3); the upper end of the valve stem (4) movably penetrates into the box body (3) and is fixedly connected to a worm gear (5); a first motor (7) is fixedly installed on the outer wall of the box body (3); the output end of the first motor (7) penetrates into the box body (3) and is fixedly connected to a worm gear (6); the worm gear (6) is meshed with the worm gear (5); The top end of the valve stem (4) is fixedly connected to a rotating disk (8), and the inner wall of the box body (3) is fixedly mounted with a driving assembly, and an arc-shaped clamping strip (13) is provided on the driving assembly. When the arc-shaped clamping strip (13) abuts against the rotating disk (8), the rotating disk (8) is locked.

2. The electric control valve with a self-locking structure according to claim 1, characterized in that: The driving assembly comprises a second motor (9) fixedly mounted on the outer wall of the box body (3), and a screw rod (10) rotatably inserted between the inner walls of the box body (3); the output end of the second motor (9) is fixedly connected to the screw rod (10); a nut block (12) is threadedly sleeved on the screw rod (10); one end of the nut block (12) is fixedly connected to an arc-shaped clamping strip (13); a limiting rod (11) is fixedly connected between the inner walls of the box body (3); and the limiting rod (11) movably penetrates the nut block (12).

3. The electric control valve with a self-locking structure according to claim 2, characterized in that: The limiting rod (11) is a smooth rod, and the limiting rod (11) is a round rod-shaped structure.

4. The electric control valve with a self-locking structure according to claim 1, characterized in that: The valve plate (2) is a disc-shaped structure.

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