Electric valve with speed reducer

Abstract

The utility model relates to the technical field of electric valves, and provides an electric valve with a speed reducer, which comprises an electric valve mechanism, the electric valve mechanism comprises a pipeline, a connecting pipe fixedly penetrates through the circumferential surface of the pipeline, and an electric control mechanism is arranged at one end, far away from the pipeline, of the connecting pipe. By means of the technical scheme, the problems in the prior art are solved, the force for driving the lead screw to rotate through the electric control mechanism is matched with components such as the gear A, the gear B and the gear ring, the lead screw is driven to rotate through the electric control mechanism, the lead screw drives the gear A to rotate, and then the gear A drives the gear B to rotate; a gear B drives a gear ring to rotate, then the gear ring drives a rotating shaft to rotate, the rotating shaft drives a rotating rod to rotate, then the rotating rod drives a baffle to rotate, the effect of reducing the speed of the rotating shaft is achieved, and the flow speed of liquid can be accurately controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of electric valves, in particular to an electric valve with a deceleration device. Background Art

[0002] In an air-conditioning system with a dehumidification operation function, the indoor heat exchanger is usually composed of a first heat exchanger and a second heat exchanger, and a dehumidification electric valve is provided between the two heat exchangers. When the system is in normal operation, the dehumidification electric valve is fully open, so that the two heat exchangers function as one. When the system is in dehumidification operation, the dehumidification electric valve functions as a throttling device, so that the first heat exchanger on the high-pressure side functions as a condenser, and the second heat exchanger on the low-pressure side functions as an evaporator.

[0003] According to a disclosed dehumidification electric valve of an air-conditioning system (publication number: CN107101020B), it includes a valve body, a valve needle and a driving device for driving the valve needle to move. The dehumidification electric valve also includes a gear reduction mechanism and a slider. The valve body is provided with an inlet, a small valve port and a large valve port. The small valve port and the large valve port are connected by a capillary tube. The valve needle is used to open and close the small valve port. When the small valve port is opened, the gear reduction mechanism drives the slider to open the large valve port. This effectively improves the noise problem and enhances the valve opening performance, thereby ensuring the stable and reliable operation of the air-conditioning system. However, in the above-mentioned device, the valve body, the valve needle and other components cooperate with each other to achieve the effect of decelerating the rotating shaft, which makes it difficult to accurately control the liquid flow rate and needs to be improved. Utility Model Content

[0004] The utility model proposes an electric valve with a deceleration device, which solves the problem in the related art that an electric control mechanism is used to drive the screw to rotate, so that the screw drives gear A to rotate, and then gear A drives gear B to rotate, and then gear B drives the gear ring to rotate, and then the gear ring drives the rotating shaft to rotate, and then the rotating shaft drives the rotating rod to rotate, and then the rotating rod drives the baffle to rotate.

[0005] The technical solution of the utility model is as follows: an electric valve with a deceleration device, comprising an electric valve mechanism, the electric valve mechanism comprising a pipe, a connecting pipe fixedly passing through the circumferential surface of the pipe, an electric control mechanism provided at one end of the connecting pipe away from the pipe, a screw provided at one end of the electric control mechanism away from the connecting pipe, and a handle fixedly connected to the end of the screw away from the electric control mechanism;

[0006] A deceleration device is provided on the outside of the electric valve mechanism, and the deceleration device includes gear A. The gear A is provided on the top of the electric control mechanism. The end of the screw rod away from the electric control mechanism passes through gear A and is fixedly connected to gear A. One side of the gear A is meshed with gear B, and one side of the gear B is meshed with a gear ring. The bottom of the gear ring is fixedly connected to a rotating shaft, and the end of the rotating shaft away from the gear ring is fixedly connected to a rotating rod, and a baffle is fixedly connected to the circumferential surface of the rotating rod.

[0007] Furthermore, one end of the screw rod close to the electric control mechanism is located inside the electric control mechanism, the electric control mechanism is located between the handle and the connecting tube, and an anti-slip groove is provided on the top of the handle. The above design is conducive to achieving an anti-slip effect when the handle is manually turned through the anti-slip groove on the handle.

[0008] Furthermore, there are four gears B, which are arranged in groups of two and arranged in a circular array on the top of the electric control mechanism. The gear A is located between the four gears B. There are two baffles, which are symmetrical to each other along the vertical center axis of the rotating rod. The above design is conducive to the rotation of gear A, thereby driving the four gears B to rotate.

[0009] Furthermore, a limiting device is provided on the outside of the electric valve mechanism, and the limiting device includes a fixed block, which is fixedly connected to the top of the electric control mechanism, and a spring telescopic rod is fixedly connected to one side of the fixed block, and a push rod is fixedly connected to the end of the spring telescopic rod away from the fixed block, and a clamping block is fixedly connected to the side of the push rod away from the spring telescopic rod, and a groove is provided on the circumferential surface of the screw rod.

[0010] Furthermore, there are two spring telescopic rods, which are symmetrical to each other along the vertical center axis of the fixed block. The push rod is slidingly connected to the top of the electric control mechanism. The above design is conducive to limiting the push rod through the two spring telescopic rods.

[0011] Furthermore, the number of the grooves is several and they are arranged in a circumferential array on the circumferential surface of the screw rod. The grooves are located on the displacement trajectory of the block away from one end of the push rod. The above design is conducive to limiting the screw rod through the mutual contact between the block and the grooves.

[0012] Furthermore, one end of the rotating rod is located inside the connecting pipe, the other end of the rotating rod is located inside the pipeline, and the baffle is located inside the pipeline. The above design is conducive to controlling the liquid flow inside the pipeline through the rotating rod.

[0013] Furthermore, the gear A is located inside the electric control mechanism, the gear B is located inside the electric control mechanism, and the gear ring is located inside the electric control mechanism. The above design is conducive to controlling the rotation of the screw rod through the electric control mechanism, so that the screw rod drives the gear A to rotate.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, the force of the screw driven to rotate by the electric control mechanism cooperates with components such as gear A, gear B and gear ring, so that the electric control mechanism drives the screw to rotate, thereby causing the screw to drive gear A to rotate, and then gear A drives gear B to rotate, and then gear B drives the gear ring to rotate, and then the gear ring drives the rotating shaft to rotate, and then the rotating shaft drives the rotating rod to rotate, and then the rotating rod drives the baffle to rotate, thereby achieving the effect of decelerating the rotating shaft, so as to accurately control the liquid flow rate.

[0016] 2. In the utility model, the force of the clamping block and the groove cooperates with the fixed block, the spring telescopic rod and the push rod and other components, so that by pushing the push rod, the push rod drives the clamping block away from the groove on the screw rod, and then manually turns the handle. When it is necessary to stop the rotation, by loosening the push rod, the push rod is reset by the spring telescopic rod, so that the push rod drives the clamping block and the groove on the screw rod to contact each other, thereby achieving the effect of limiting the screw rod and preventing it from rotating due to external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the pipeline of the utility model from a side view;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the electric control mechanism of the present invention;

[0021] Figure 4 This is a three-dimensional schematic diagram of the electric control mechanism of the present invention viewed from above;

[0022] Figure 5 For this utility model Figure 4 A three-dimensional enlarged view of center A.

[0023] In the figure: 1. Electric valve mechanism; 101. Pipe; 102. Connecting pipe; 103. Electric control mechanism; 104. Screw; 105. Handle; 2. Speed ​​reduction device; 201. Gear A; 202. Gear B; 203. Gear ring; 204. Rotating shaft; 205. Rotating rod; 206. Baffle; 3. Limiting device; 301. Fixed block; 302. Spring telescopic rod; 303. Push rod; 304. Block; 305. Groove. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figures 1 to 3 This embodiment provides an electric valve with a deceleration device, including an electric valve mechanism 1. The electric valve mechanism 1 includes a pipe 101. A connecting pipe 102 is fixedly passed through the circumferential surface of the pipe 101. An electric control mechanism 103 is provided at one end of the connecting pipe 102 away from the pipe 101. A screw rod 104 is provided at one end of the electric control mechanism 103 away from the connecting pipe 102. A handle 105 is fixedly connected to the other end of the screw rod 104 away from the electric control mechanism 103.

[0027] A reduction device 2 is provided on the outside of the electric valve mechanism 1, and the reduction device 2 includes a gear A201. The gear A201 is arranged on the top of the electric control mechanism 103. The end of the screw rod 104 away from the electric control mechanism 103 passes through the gear A201 and is fixedly connected to the gear A201. One side of the gear A201 is meshed with a gear B202, and one side of the gear B202 is meshed with a gear ring 203. The bottom of the gear ring 203 is fixedly connected to a rotating shaft 204, and the end of the rotating shaft 204 away from the gear ring 203 is fixedly connected to a rotating rod 205, and a baffle 206 is fixedly connected to the circumferential surface of the rotating rod 205.

[0028] One end of the screw rod 104 close to the electric control mechanism 103 is located inside the electric control mechanism 103, and the electric control mechanism 103 is located between the handle 105 and the connecting tube 102. An anti-slip groove is provided on the top of the handle 105. The above design is conducive to achieving an anti-slip effect when the handle 105 is manually rotated through the anti-slip groove on the handle 105.

[0029] There are four gears B202, which are arranged in a group of two and arranged in a circular array at the top of the electric control mechanism 103. The gear A201 is located between the four gears B202. There are two baffles 206, which are symmetrical to each other along the vertical center axis of the rotating rod 205. The above design is conducive to the rotation of the gear A201, thereby driving the four gears B202 to rotate.

[0030] In this embodiment, the screw rod 104 is driven to rotate by the electric control mechanism 103, so that the gear A 201 is driven to rotate clockwise, and then the gear B 202 is driven to rotate counterclockwise, so that the gear B 202 drives the gear ring 203 to rotate counterclockwise, and then the gear ring 203 drives the rotating shaft 204 to rotate counterclockwise, so that the rotating shaft 204 drives the rotating rod 205 to rotate counterclockwise, and then the rotating rod 205 drives the baffle 206 to rotate counterclockwise, so as to achieve the effect of reducing the rotating shaft 204, so as to accurately control the liquid flow rate.

[0031] Embodiment 2

[0032] As Figures 4 and 5 , based on the same idea as in the above embodiment 1, this embodiment also proposes an electric valve with a speed reduction device, which comprises an electric valve mechanism 1, and a limiting device 3 is arranged outside the electric valve mechanism 1. The limiting device 3 comprises a fixed block 301, the fixed block 301 is fixedly connected with the top of the electric control mechanism 103, one side of the fixed block 301 is fixedly connected with a spring telescopic rod 302, one end of the spring telescopic rod 302 away from the fixed block 301 is fixedly connected with a push rod 303, one side of the push rod 303 away from the spring telescopic rod 302 is fixedly connected with a clamping block 304, and a groove 305 is arranged on the circumferential surface of the screw rod 104.

[0033] The number of spring telescopic rods 302 is two, and they are mutually symmetrical along the vertical central axis of the fixed block 301, and the push rod 303 is slidingly connected with the top of the electric control mechanism 103. The above design is conducive to limiting the push rod 303 by the two spring telescopic rods 302.

[0034] The number of grooves 305 is several, and they are arranged in an array on the circumferential surface of the screw rod 104, and the groove 305 is located on the displacement trajectory of the end of the clamping block 304 away from the push rod 303. The above design is conducive to limiting the screw rod 104 by the mutual contact of the clamping block 304 and the groove 305.

[0035] One end of the rotating rod 205 is located inside the connecting pipe 102, the other end of the rotating rod 205 is located inside the pipeline 101, and the baffle 206 is located inside the pipeline 101. The above design is conducive to controlling the liquid flow in the pipeline 101 by the rotating rod 205.

[0036] The gear A 201 is located inside the electric control mechanism 103, the gear B 202 is located inside the electric control mechanism 103, and the gear ring 203 is located inside the electric control mechanism 103. The above design is conducive to driving the gear A 201 to rotate by rotating the screw rod 104 through the electric control mechanism 103.

[0037] In the embodiment, the push rod 303 drives the clamping block 304 to move away from the groove 305 on the lead screw 104 by pushing the push rod 303, and then the handle 105 is manually rotated. When it is needed to stop rotating, the push rod 303 is loosened, the push rod 303 drives the clamping block 304 to contact the groove 305 on the lead screw 104 through the reset of the spring telescopic rod 302, so that the lead screw 104 is limited, and self-rotation caused by external force is avoided.

[0038] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An electric valve with a speed reduction device, characterized in that: The electric valve mechanism (1) comprises a pipe (101), a connecting pipe (102) is fixedly passed through the circumferential surface of the pipe (101), an electric control mechanism (103) is provided at one end of the connecting pipe (102) away from the pipe (101), a screw rod (104) is provided at one end of the electric control mechanism (103) away from the connecting pipe (102), and a handle (105) is fixedly connected to one end of the screw rod (104) away from the electric control mechanism (103); The electric valve mechanism (1) is provided with a reduction device (2) on the outside. The reduction device (2) includes a gear A (201). The gear A (201) is provided on the top of the electric control mechanism (103). The end of the screw rod (104) away from the electric control mechanism (103) passes through the gear A (201) and is fixedly connected to the gear A (201). One side of the gear A (201) is meshed with a gear B (202). One side of the gear B (202) is meshed with a gear ring (203). The bottom of the gear ring (203) is fixedly connected to a rotating shaft (204). The end of the rotating shaft (204) away from the gear ring (203) is fixedly connected to a rotating rod (205). The circumferential surface of the rotating rod (205) is fixedly connected to a baffle (206).

2. The electric valve with a speed reduction device according to claim 1, characterized in that: One end of the screw rod (104) close to the electric control mechanism (103) is located inside the electric control mechanism (103). The electric control mechanism (103) is located between the handle (105) and the connecting pipe (102). The top of the handle (105) is provided with an anti-slip groove.

3. The electric valve with a deceleration device according to claim 2, characterized in that: The number of the gears B (202) is four, and they are arranged in a group of two and arranged in a circular array on the top of the electric control mechanism (103). The gear A (201) is located between the four gears B (202). The number of the baffles (206) is two, and they are symmetrical to each other along the vertical center axis of the rotating rod (205).

4. The electric valve with a speed reduction device according to claim 3, characterized in that: A limiting device (3) is provided on the outside of the electric valve mechanism (1), and the limiting device (3) comprises a fixed block (301), the fixed block (301) is fixedly connected to the top of the electric control mechanism (103), a spring telescopic rod (302) is fixedly connected to one side of the fixed block (301), a push rod (303) is fixedly connected to one end of the spring telescopic rod (302) away from the fixed block (301), a clamping block (304) is fixedly connected to one side of the push rod (303) away from the spring telescopic rod (302), and a groove (305) is provided on the circumferential surface of the screw rod (104).

5. The electric valve with a speed reduction device according to claim 4, characterized in that: There are two spring telescopic rods (302) which are symmetrical to each other along the vertical center axis of the fixed block (301). The push rod (303) is slidably connected to the top of the electric control mechanism (103).

6. The electric valve with a speed reduction device according to claim 5, characterized in that: The grooves (305) are in a plurality of numbers and are arranged in a circumferential array on the circumferential surface of the screw rod (104). The grooves (305) are located on a displacement track of the clamping block (304) away from one end of the push rod (303).

7. The electric valve with a speed reduction device according to claim 6, characterized in that: One end of the rotating rod (205) is located inside the connecting pipe (102), the other end of the rotating rod (205) is located inside the pipe (101), and the baffle (206) is located inside the pipe (101).

8. The electric valve with a speed reduction device according to claim 7, characterized in that: The gear A (201) is located inside the electric control mechanism (103), the gear B (202) is located inside the electric control mechanism (103), and the gear ring (203) is located inside the electric control mechanism (103).

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