Electric valve with buffer pressure relief mechanism

Abstract

The utility model provides an electrically operated valve with a buffer pressure relief mechanism, which relates to the technical field of fluid control and comprises a shell, a transmission component is arranged on the shell and comprises an air pump, an air delivery pipe is fixedly communicated onto the air pump, an air bag is fixedly communicated onto the air delivery pipe on the air pump, a piston is slidably connected onto the air bag, and the piston is fixedly connected onto the shell. A third rotating shaft is rotationally connected to the piston, a second arc-shaped piece is rotationally connected to the third rotating shaft, a second rotating shaft is rotationally connected to the second arc-shaped piece, a sliding plate is rotationally connected to the second rotating shaft, a first arc-shaped piece is fixedly connected to the sliding plate, a first rotating shaft is rotationally connected to the first arc-shaped piece, and the first rotating shaft is rotationally connected to the plugging ball; according to the pressure relief pipe, the filter plate arranged in the pressure relief pipe can effectively filter impurities, the purity of fluid is guaranteed, and the problem that in the prior art, after long-time operation, the impurities are still likely to be accumulated in the pressure relief pipe, and finally blockage is caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control, in particular to an electric valve with a buffer pressure relief mechanism. Background Art

[0002] The main function of the water mist cooling circuit of the casting mold is to solve the problem of uneven mixing of water mist in the existing water mist cooling process, realize the uniform mixing of cooling water and compressed air, and thus facilitate the uniform cooling of the mold during the casting process. Its advantages include good cooling effect, easy control, etc., combining the advantages of air cooling and water cooling;

[0003] The existing Chinese patent (Publication No.: CN220354515U) proposes an electric valve with a buffer pressure relief mechanism. Through the setting of a pressure gauge, the liquid pressure blocking one side of the valve ball can be detected, so as to avoid excessive pressure and the rupture of the valve body. When the water pressure on one side of the valve body is too high, the pressure relief pipe can be opened through a control valve, and the liquid flows out through the pressure relief pipe, thereby reducing the liquid pressure on one side of the valve ball. At the same time, under the action of the filter baffle, the impurities in the liquid passing through the valve body will be filtered and accumulated on the right side, and enter the pressure relief pipe through the round hole in the valve body, thus avoiding the valve ball being blocked by the impurities in the conveyed liquid and affecting the use. Through the pressure gauge, the pressure relief pipe and the control valve, the water pressure in the valve body can be observed and processed, so as to avoid excessive water pressure and damage to the valve body, and also increase the service life of the valve body.

[0004] However, in actual application, due to the relatively small flow space of the pressure relief pipe itself, compared with the pipeline of the valve body part, the diameter of the pressure relief pipe is usually thinner. When a small amount of impurities enter the pressure relief pipe, due to the narrow space, these impurities are easily attached to the pipe wall and gradually accumulate over time. Although the above patent is provided with a filter baffle to block impurities, after long-term operation, it is still very likely that the impurities will accumulate in the pressure relief pipe and eventually cause blockage. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art and provide an electric valve with a buffer pressure relief mechanism.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an electric valve with a buffer pressure relief mechanism, including a housing, and a transmission component is arranged on the housing;

[0007] The transmission assembly includes an air pump, an air delivery pipe is fixedly connected to the air pump, an airbag is fixedly connected to the air delivery pipe on the air pump, a piston is slidably connected to the airbag, a third rotating shaft is rotatably connected to the piston, a second arc-shaped member is rotatably connected to the third rotating shaft, a second rotating shaft is rotatably connected to the second arc-shaped member, a sliding plate is rotatably connected to the second rotating shaft, a first arc-shaped member is fixedly connected to the sliding plate, and a first rotating shaft is rotatably connected to the first arc-shaped member and the first rotating shaft is rotatably connected to the plugging ball.

[0008] As a preferred embodiment, a ring-shaped member is slidably connected to the sliding plate, and the ring-shaped member is slidably connected inside the housing.

[0009] The technical effect of adopting the above further solution is that: by providing the ring-shaped member, during use, by starting the air pump, the air pressure in the installation chamber is increased, so that the piston is pushed out, the second arc-shaped member drives the plugging ball to roll towards the side close to the sliding plate, and the first arc-shaped member drives the sliding plate to slide downwards, then the ring-shaped member can be plugged, and the water flow can be cut off. By disassembling the flange, the filter plate can be replaced.

[0010] As a preferred embodiment, a filter plate is slidably connected to one end of the housing away from the sliding plate.

[0011] The technical effect of adopting the above further solution is that: the filter plate filters impurities in the valve.

[0012] As a preferred embodiment, there are two third rotating shafts, and both of the two third rotating shafts are rotatably connected to the piston.

[0013] The technical effect of adopting the above further solution is that: by providing third rotating shafts on both sides of the piston, the piston is set as an inclined plane, and the side close to the sliding plate is lower than the side away from the sliding plate, which is convenient for driving the plugging ball to roll towards the side close to the sliding plate when the piston slides downwards.

[0014] As a preferred embodiment, a connecting pipe is fixedly connected to the air pump, an installation cylinder is fixedly connected to the connecting pipe, and an installation chamber is fixedly connected to the installation cylinder.

[0015] The technical effect of adopting the above further solution is that: by providing the installation cylinder and the installation chamber, it is ensured that there is no air leakage when the air pump delivers air to the airbag.

[0016] As a preferred embodiment, a flow groove is provided on the plugging ball, the piston is slidably connected to the side of the plugging ball close to the flow groove on the plugging ball, connecting pipes are fixedly connected to both ends of the housing, and flange plates are fixedly connected to the ends of the two connecting pipes away from the plugging ball.

[0017] The technical effect of adopting the above further solution is that by providing a flow groove on the plugging ball, it is convenient for water flow to pass through the plugging ball. When the water flow velocity in the valve suddenly increases, the plugging ball can rotate suddenly, causing the second arc-shaped member to drive the piston to slide in the airbag, and the expansion of the airbag offsets the impact force of the water flow.

[0018] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0019] 1. In the present utility model, the internally provided filter plate can effectively filter impurities, ensuring the purity of the fluid. At the same time, the detachable flange design facilitates the replacement of the filter plate, improving the convenience and efficiency of maintenance, maintaining the normal operation of the valve, reducing the failure rate, reducing the maintenance cost and downtime, and solving the problem that in the prior art in the background technology, after long-term operation, impurities are still very likely to accumulate in the pressure relief pipe and eventually cause blockage.

[0020] 2. In the present utility model, through the coordinated action of the air pump, airbag, piston and a series of transmission components, the cut-off and conduction of the water flow can be precisely controlled. When the water flow velocity suddenly increases, its unique design can effectively offset the impact force by the expansion of the airbag, reducing the damage to the valve and the pipeline system, ensuring the stable operation of the system, and extending the service life of the valve and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an electric valve with a buffer pressure relief mechanism provided by the present utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the housing and the connecting pipeline of an electric valve with a buffer pressure relief mechanism provided by the present utility model;

[0023] Figure 3 It is a schematic diagram of the connection relationship between the sliding plate and the annular member of an electric valve with a buffer pressure relief mechanism provided by the present utility model;

[0024] Figure 4 It is a schematic diagram of the connection relationship between the air pump and the installation cylinder of an electric valve with a buffer pressure relief mechanism provided by the present utility model.

[0025] Legend Explanation:

[0026] 1. Housing; 11. Connecting pipeline; 12. Flange

[0027] 2. Transmission assembly; 21. Connecting pipe; 22. Airbag; 23. Installation bin; 24. Plugging ball; 25. Filter plate; 26. Ring-shaped part; 27. Sliding plate; 28. First rotating shaft; 29. First arc-shaped part; 210. Second rotating shaft; 211. Third rotating shaft; 212. Piston; 213. Air pump; 214. Second arc-shaped part;

[0028] 3. Installation cylinder. Specific implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0030] This embodiment provides a technical solution, as Figures 1 to 4 shown, an electric valve with a buffer pressure relief mechanism, including a housing 1, and a transmission assembly 2 is arranged on the housing 1;

[0031] The transmission assembly 2 includes an air pump 213, an air delivery pipe is fixedly communicated with the air pump 213, an airbag 22 is fixedly communicated with the air delivery pipe on the air pump 213, a piston 212 is slidably connected to the airbag 22, a third rotating shaft 211 is rotatably connected to the piston 212, a second arc-shaped part 214 is rotatably connected to the third rotating shaft 211, a second rotating shaft 210 is rotatably connected to the second arc-shaped part 214, a sliding plate 27 is rotatably connected to the second rotating shaft 210, a first arc-shaped part 29 is fixedly connected to the sliding plate 27, a first rotating shaft 28 is rotatably connected to the first arc-shaped part 29, and the first rotating shaft 28 is rotatably connected to the plugging ball 24;

[0032] In the present invention, the internally arranged filter plate 25 can effectively filter impurities and ensure the purity of the fluid. At the same time, the detachable flange 12 is designed to facilitate the replacement of the filter plate 25, improving the convenience and efficiency of maintenance, keeping the valve running normally, reducing the failure rate, reducing the maintenance cost and downtime, and solving the problem that in the prior art in the background art, after long-term operation, there is still a high possibility that impurities will accumulate in the pressure relief pipe and eventually cause blockage.

[0033] Furthermore, as Figures 1 to 4As shown, a ring-shaped member 26 is slidably connected to a sliding plate 27, and the ring-shaped member 26 is slidably connected within a housing 1. By providing the ring-shaped member 26, during use, by starting an air pump 213, the air pressure within an installation chamber 23 is increased, causing a piston 212 to be pushed out, such that a second arc-shaped member 214 drives a plugging ball 24 to roll towards the side close to the sliding plate 27, causing a first arc-shaped member 29 to drive the sliding plate 27 to slide downwards, thereby plugging the ring-shaped member 26 and cutting off the water flow. By removing a flange 12, the filter plate 25 can be replaced; a filter plate 25 is slidably connected to one end of the housing 1 away from the sliding plate 27, and impurities within the valve are filtered by the filter plate 25;

[0034] There are two third rotating shafts 211, and both of the two third rotating shafts 211 are rotatably connected to the piston 212. By providing third rotating shafts 211 on both sides of the piston 212, the piston 212 is provided as an inclined surface, with the side close to the sliding plate 27 being lower than the side away from the sliding plate 27, facilitating the piston 212 to drive the plugging ball 24 to roll towards the side close to the sliding plate 27 when the piston 212 slides downwards;

[0035] The air pump 213 is fixedly connected to a connecting pipe 21, the connecting pipe 21 is fixedly connected to an installation cylinder 3, and the installation cylinder 3 is fixedly connected to an installation chamber 23. By providing the installation cylinder 3 and the installation chamber 23, it is ensured that no air leakage occurs when the air pump 213 supplies air to the airbag 22; in the above solution, there is also a problem that when the water flow is too large, the plugging ball 24 may be washed away, as Figures 2 to 4 shown, a flow groove is provided on the plugging ball 24, and the piston 212 is slidably connected to the side of the plugging ball 24 close to the flow groove on the plugging ball 24. Connecting pipes 11 are fixedly connected to both ends of the housing 1, and flange plates 12 are fixedly connected to the ends of the two connecting pipes 11 away from the plugging ball 24. By providing a flow groove on the plugging ball 24, it is convenient for water flow to pass through the plugging ball 24. When the water flow velocity within the valve suddenly increases, the plugging ball 24 can suddenly rotate, causing the second arc-shaped member 214 to drive the piston 212 to slide within the airbag 22, and the impact force of the water flow is offset by the expansion of the airbag 22.

[0036] Working principle:

[0037] As Figures 1-4As shown: Start the air pump 213, and send air into the installation bin 23 through the connecting pipe 21. The gas enters the airbag 22 through the air delivery pipe. The airbag 22 expands and pushes the piston 212 to slide. Since the piston 212 is inclined and the side close to the sliding plate 27 is lower, when the piston 212 slides down, it drives the second arc-shaped member 214 to move, causing the plugging ball 24 to roll towards the side close to the sliding plate 27. At the same time, the second arc-shaped member 214 drives the sliding plate 27 to slide down through the third rotating shaft 211 and the second rotating shaft 210. The first arc-shaped member 29 on the sliding plate 27 drives the plugging ball 24 to further act, and finally plugs the annular member 26 to cut off the water flow. A filter plate 25 is provided in the housing 1 to filter impurities, and the filter plate 25 can be replaced by removing the flange 12;

[0038] When the water flow velocity in the valve suddenly increases, the impact force of the water flow will cause the plugging ball 24 to suddenly rotate, driving the second arc-shaped member 214 to make the piston 212 slide in the airbag 22, and using the expansion of the airbag 22 to offset the impact force of the water flow.

[0039] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes in other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An electric valve with a buffer pressure relief mechanism, comprising a housing (1), characterized in that, A transmission component (2) is provided on the housing (1); The transmission component (2) includes an air pump (213). An air delivery pipe is fixedly communicated with the air pump (213). An air bag (22) is fixedly communicated with the air delivery pipe on the air pump (213). A piston (212) is slidably connected to the air bag (22). A third rotating shaft (211) is rotatably connected to the piston (212). A second arc-shaped member (214) is rotatably connected to the third rotating shaft (211). A second rotating shaft (210) is rotatably connected to the second arc-shaped member (214). A sliding plate (27) is rotatably connected to the second rotating shaft (210). A first arc-shaped member (29) is fixedly connected to the sliding plate (27). A first rotating shaft (28) is rotatably connected to the first arc-shaped member (29). The first rotating shaft (28) is rotatably connected to a plugging ball (24).

2. The electric valve with a buffer pressure relief mechanism according to claim 1, characterized in that: An annular member (26) is slidably connected to the sliding plate (27). The annular member (26) is slidably connected inside the housing (1).

3. The electric valve with a buffer pressure relief mechanism according to claim 2, characterized in that: A filter plate (25) is slidably connected to one end of the housing (1) far from the sliding plate (27).

4. The electric valve with a buffer pressure relief mechanism according to claim 3, characterized in that: There are two third rotating shafts (211). Both of the two third rotating shafts (211) are rotatably connected to the piston (212).

5. The electric valve with a buffer pressure relief mechanism according to claim 4, wherein: A connecting pipe (21) is fixedly connected to the air pump (213). An installation cylinder (3) is fixedly connected to the connecting pipe (21). An installation chamber (23) is fixedly connected to the installation cylinder (3).

6. The electric valve with a buffer pressure relief mechanism according to claim 1, characterized in that: A flow groove is formed in the plugging ball (24). The piston (212) is slidably connected to one side of the plugging ball (24) close to the flow groove on the plugging ball (24). Connecting pipes (11) are fixedly connected to both ends of the housing (1). Flange plates (12) are fixedly connected to one ends of the two connecting pipes (11) far from the plugging ball (24).

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