Overpressure safety valve capable of adjusting medium flow

Abstract

The utility model relates to the technical field of safety valves, in particular to an overpressure safety valve capable of adjusting medium flow, which comprises a safety valve, one side of the inner wall of the safety valve is fixedly connected with a plate body, the inner wall of the plate body is fixedly connected with a cylinder body, one side of the top of the safety valve is fixedly connected with a shell, and the shell is fixedly connected with a cylinder body. A safety valve is arranged in the shell, rubber rings are attached to the right end and the bottom of the safety valve, an adjusting structure is arranged on one side of the shell, a filtering structure is arranged on one side of the safety valve, the adjusting structure comprises a threaded rod, and the upper portion of the outer wall of the threaded rod is rotationally connected with the inner wall of one side of the top of the shell through a bearing. Through cooperation of a safety valve, a shell, a plate body, a barrel and an adjusting structure, when the device is used, a threaded rod can be rotated to drive a baffle to move upwards, the baffle drives a round block to move upwards, and a worker checks the position of the round block through an observation window and adjusts the position of the round block according to the position of scale marks. And a worker can conveniently and accurately adjust the flow size, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to an overpressure safety valve capable of adjusting the flow size of a medium. Background Art

[0002] A safety valve is a special valve whose opening and closing parts are in a normally closed state under the action of external force. When the medium pressure in the equipment or pipeline rises above the specified value, it prevents the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium outside the system.

[0003] There is an overpressure safety valve (application number: 202322245093.1) that can adjust the flow size of the medium. The valve core assembly can move up and down with the rotation of the shaft rod, and is used to adjust the distance between the bottom of the valve core assembly and the valve port. The valve core assembly itself has a through hole, and the upper valve cover has an overpressure discharge port. The present application can adjust the size of the space in the valve cavity. The above still exists. When the safety valve is in use, the pressure of the medium flowing in the safety valve causes the safety valve to perform pressure relief and discharge work, and the size of the discharged medium flow remains unchanged at this time. The above device can control the size of the medium flow, but it is not convenient for the staff to accurately adjust the flow size, and it is inconvenient to use. When the safety valve is in use, it is not convenient to filter impurities in the liquid medium after the liquid medium flows in the safety valve, and impurities are easily accumulated in subsequent pipelines, affecting the circulation of the liquid medium. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that it is inconvenient for workers to accurately adjust the flow size, it is inconvenient to use, it is inconvenient to filter impurities in the liquid medium, and then it is easy for impurities to accumulate in subsequent pipelines, affecting the circulation of the liquid medium, and to propose an over-pressure safety valve that can adjust the flow size of the medium.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An overpressure safety valve capable of adjusting the flow size of a medium is designed, comprising a safety valve, a plate body being fixedly connected to one side of an inner wall of the safety valve, a cylinder body being fixedly connected to the inner wall of the plate body, a shell being fixedly connected to one side of a top of the safety valve, rubber rings being fitted to the right end and the bottom of the safety valve, an adjustment structure being provided on one side of the shell, and a filtering structure being provided on one side of the safety valve.

[0007] Preferably, the adjusting structure comprises a threaded rod, the upper part of the outer wall of the threaded rod is rotatably connected to the inner wall of the top side of the shell through a bearing, the lower part of the outer wall of the threaded rod is threadedly connected to a baffle, the upper part of the outer wall of the baffle is gapped with the inner wall of the top side of the safety valve, one end of the baffle is fitted with one end of the cylinder, a groove block is gapped with the lower part of the outer wall of the baffle, the bottom of the groove block is fixedly connected to one side of the inner wall of the safety valve, a vertical rod is fixedly connected to the top side of the baffle, the upper part of the outer wall of the vertical rod is gapped with the inner wall of the top side of the shell, a round block is fixedly connected to one side of the front end face of the baffle, an observation window is provided in front of the round block, the outer wall of the observation window is fixedly connected to the inner wall of the front end face of the shell, a scale line is provided on one side of the observation window, and the scale line is processed on one side of the front end face of the shell.

[0008] Preferably, a vertical pipe is fixedly connected to the inner wall of one side of the bottom of the safety valve, and a piston is threadedly connected to the inner wall of the bottom of the vertical pipe.

[0009] Preferably, a screw rod is fitted in the inner wall gap on one side of the safety valve.

[0010] Preferably, a nut is threadedly connected to one side of the outer wall of the screw rod.

[0011] Preferably, the filtering structure includes a filter screen, the lower part of the outer wall of the filter screen is gapped with the inner wall of the bottom side of the safety valve, the bottom of the filter screen is fixedly connected with a protrusion, the outer wall gap of the protrusion is gapped with a rotating rod, the rear end side of the rotating rod is rotatably connected to the bottom side of the safety valve through a pin shaft, the bottom of the rotating rod is fixedly connected with a straight cylinder, the inner wall of one end of the straight cylinder is threadedly connected with a screw, one end of the screw is rotatably connected with an insertion rod through a bearing, and one side of the outer wall of the insertion rod is gapped with the inner wall of the other end of the straight cylinder and the groove of one end of the protrusion.

[0012] The utility model provides an overpressure safety valve capable of adjusting the flow size of a medium, and has the beneficial effects that: through the cooperation of the safety valve, the shell, the plate body, the cylinder body and the adjustment structure, when the device is in use, the threaded rod can be rotated, the threaded rod drives the baffle plate to move upward, and the baffle plate drives the round block to move upward, and the staff can check the position of the round block through the observation window, and according to the position of the scale line, the staff can accurately adjust the flow size, and the device is easy to use;

[0013] Through the cooperation of the safety valve and the filtering structure, when the device is in use, the filter screen can be inserted into the safety valve, the rotating rod is rotated to insert the protrusion into the inner wall of the rotating rod, and the screw rod is rotated. The screw rod drives the insertion rod to move to the left, and the insertion rod is inserted into the groove of the protrusion, thereby fixing the filter screen. The filter screen can filter impurities, and the impurities fall into the vertical pipe along the filter screen, which is convenient for filtering impurities in the liquid medium and avoiding the accumulation of impurities in subsequent pipelines to affect the circulation of the liquid medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the safety valve, vertical pipe and piston structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the rubber ring and the inclined block structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the baffle, plate body and cylinder structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the threaded rod, vertical rod and baffle structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the plug rod, straight tube and screw rod of the utility model.

[0020] In the figure: 1. safety valve, 2. adjusting structure, 2a1. threaded rod, 2a2. vertical rod, 2a3. baffle, 2a4. round block, 2a5. groove block, 2a6. scale line, 2a7. observation window, 2b1. oblique block, 3. filtering structure, 301. filter screen, 302. rotating rod, 303. convex block, 304. plug rod, 305. straight cylinder, 306. screw rod, 4. nut, 5. lead screw, 6. outer shell, 7. plate body, 8. cylinder body, 9. vertical pipe, 10. piston, 11. rubber ring. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Embodiment 1:

[0023] Refer to the attached Figure 1-6 : In the present embodiment, an overpressure safety valve capable of adjusting the flow size of a medium comprises a safety valve 1, a plate body 7 is fixedly connected to one side of the inner wall of the safety valve 1, a cylinder body 8 is fixedly connected to the inner wall of the plate body 7, a shell 6 is fixedly connected to one side of the top of the safety valve 1, a rubber ring 11 is fitted to the right end and the bottom of the safety valve 1, the rubber ring 11 plays a sealing role, a vertical pipe 9 is fixedly connected to the inner wall of one side of the bottom of the safety valve 1, a piston 10 is threadedly connected to the inner wall of the bottom of the vertical pipe 9, the piston 10 plays a sealing role, a screw rod 5 is fitted in the inner wall gap of one side of the safety valve 1, a nut 4 is threadedly connected to one side of the outer wall of the screw rod 5, an adjusting structure 2 is provided on one side of the shell 6, a filtering structure 3 is provided on one side of the safety valve 1, the adjusting structure 2 is convenient for the staff to accurately adjust the flow size, and is easy to use, the filtering structure 3 is convenient for filtering impurities in the liquid medium to avoid the accumulation of impurities in subsequent pipelines and affecting the circulation of the liquid medium.

[0024] The adjusting structure 2 includes a threaded rod 2a1, the upper part of the outer wall of the threaded rod 2a1 is rotatably connected to the inner wall of the top side of the housing 6 through a bearing, and the bearing enables the threaded rod 2a1 to rotate on the inner wall of the top side of the housing 6 when a force is applied, and a baffle 2a3 is threadedly connected to the lower part of the outer wall of the threaded rod 2a1, and the upper part of the outer wall of the baffle 2a3 is gap-matched with the inner wall of the top side of the safety valve 1, and one end of the baffle 2a3 is fitted with one end of the cylinder 8. When the baffle 2a3 is forced to move upward, the opening of one end of the cylinder 8 can be gradually opened, and the lower part of the outer wall of the baffle 2a3 is gap-matched with a groove block 2a5, and the groove The bottom of the block 2a5 is fixedly connected to one side of the inner wall of the safety valve 1, the top side of the baffle 2a3 is fixedly connected with a vertical rod 2a2, the upper part of the outer wall of the vertical rod 2a2 is gap-matched with the inner wall of the top side of the shell 6, the front end face of the baffle 2a3 is fixedly connected with a round block 2a4, an observation window 2a7 is provided in front of the round block 2a4, the outer wall of the observation window 2a7 is fixedly connected to the inner wall of the front end face of the shell 6, and a scale line 2a6 is provided on one side of the observation window 2a7. The scale line 2a6 is processed on one side of the front end face of the shell 6, which is convenient for the staff to accurately adjust the flow size and is easy to use.

[0025] The filtering structure 3 includes a filter screen 301, and the lower part of the outer wall of the filter screen 301 is matched with the inner wall gap on the bottom side of the safety valve 1. The material and mesh number of the filter screen 301 are determined according to the actual use situation. The bottom of the filter screen 301 is fixedly connected with a protrusion 303, and the outer wall gap of the protrusion 303 is matched with a rotating rod 302. The rear end side of the rotating rod 302 is rotatably connected with the bottom side of the safety valve 1 through a pin shaft. The pin shaft allows the rotating rod 302 to rotate on the bottom side of the safety valve 1 when a force is applied. A straight cylinder 305 is fixedly connected to the bottom of the rotating rod 302, and a screw 306 is threadedly connected to the inner wall of one end of the straight cylinder 305. One end of the screw 306 is rotatably connected to a plug rod 304 through a bearing. The bearing allows the screw 306 to rotate at one end of the plug rod 304 when a force is applied. One side of the outer wall of the plug rod 304 is matched with the inner wall of the other end of the straight cylinder 305 and the groove gap at one end of the protrusion 303, which is convenient for filtering impurities in the liquid medium and avoiding the accumulation of impurities in subsequent pipelines to affect the circulation of the liquid medium.

[0026] Working principle:

[0027] When the medium flow needs to be adjusted:

[0028] The threaded rod 2a1 is rotated, and the threaded rod 2a1 drives the baffle 2a3 to move upward, and the baffle 2a3 gradually opens one end of the cylinder 8, and the baffle 2a3 drives the round block 2a4 to move upward. The staff checks the position of the round block 2a4 through the observation window 2a7, and according to the position of the scale line 2a6, it is convenient for the staff to accurately adjust the flow size;

[0029] When filtering impurities:

[0030] Insert the filter 301 into the safety valve 1, rotate the rotating rod 302 to insert the protrusion 303 into the inner wall of the rotating rod 302, rotate the screw 306, the screw 306 drives the insertion rod 304 to move to the left, and the insertion rod 304 is inserted into the groove of the protrusion 303, thereby fixing the filter 301. The filter 301 can filter impurities, and the impurities fall into the vertical pipe 9 along the filter 301, thereby filtering the impurities, and rotate the piston 10 to open the vertical pipe 9, so that the staff can discharge the impurities.

[0031] Embodiment 2:

[0032] See attached Figure 1-6 : In this embodiment, an over-pressure safety valve is provided that can adjust the flow size of a medium, wherein the adjustment structure 2 may further include a bevel block 2b1, one end of the bevel block 2b1 being fixedly connected to the outer side of one end of a rubber ring 11, and the outer wall of the bevel block 2b1 is gap-matched with a groove at one end of the safety valve 1.

[0033] Working principle:

[0034] The inclined block 2b1 is inserted into the groove at one end of the safety valve 1 to achieve positioning of the rubber ring 11, thereby preventing the rubber ring 11 from deviating and affecting the sealing effect.

[0035] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An overpressure safety valve capable of adjusting the flow of a medium, comprising a safety valve (1), characterized in that: A plate body (7) is fixedly connected to one side of the inner wall of the safety valve (1), a cylinder body (8) is fixedly connected to the inner wall of the plate body (7), a shell (6) is fixedly connected to one side of the top of the safety valve (1), a rubber ring (11) is fitted to the right end and the bottom of the safety valve (1), an adjustment structure (2) is provided on one side of the shell (6), and a filtering structure (3) is provided on one side of the safety valve (1).

2. An overpressure safety valve capable of adjusting the flow size of a medium according to claim 1, characterized in that: The regulating structure (2) comprises a threaded rod (2a1), the upper part of the outer wall of the threaded rod (2a1) is rotatably connected to the inner wall of the top side of the housing (6) via a bearing, the lower part of the outer wall of the threaded rod (2a1) is threadedly connected to a baffle (2a3), the upper part of the outer wall of the baffle (2a3) is gap-matched with the inner wall of the top side of the safety valve (1), one end of the baffle (2a3) is in contact with one end of the cylinder (8), the lower part of the outer wall of the baffle (2a3) is gap-matched with a groove block (2a5), the bottom of the groove block (2a5) is gap-matched with the inner wall of the safety valve (1), and the lower part of the outer wall of the baffle (2a3) is gap-matched with the inner wall of the top side of the safety valve (1). The baffle (2a3) is fixedly connected to a vertical rod (2a2) on one side of the top, and the upper part of the outer wall of the vertical rod (2a2) is gap-matched with the inner wall of the top side of the outer shell (6). The front end face of the baffle (2a3) is fixedly connected to a round block (2a4), and an observation window (2a7) is provided in front of the round block (2a4). The outer wall of the observation window (2a7) is fixedly connected to the inner wall of the front end face of the outer shell (6). A scale line (2a6) is provided on one side of the observation window (2a7), and the scale line (2a6) is processed on one side of the front end face of the outer shell (6).

3. An overpressure safety valve capable of adjusting the flow of a medium according to claim 1, characterized in that: A vertical pipe (9) is fixedly connected to the inner wall of one side of the bottom of the safety valve (1), and a piston (10) is threadedly connected to the inner wall of the bottom of the vertical pipe (9).

4. The overpressure safety valve capable of adjusting the flow size of a medium according to claim 1, characterized in that: A screw rod (5) is fitted in the inner wall gap on one side of the safety valve (1).

5. An overpressure safety valve capable of adjusting the flow of a medium according to claim 4, characterized in that: A nut (4) is threadedly connected to one side of the outer wall of the screw rod (5).

6. The overpressure safety valve capable of adjusting the flow of a medium according to claim 1, characterized in that: The filtering structure (3) comprises a filter screen (301), the lower part of the outer wall of the filter screen (301) is gap-matched with the inner wall of one side of the bottom of the safety valve (1), the bottom of the filter screen (301) is fixedly connected with a protrusion (303), the outer wall of the protrusion (303) is gap-matched with a rotating rod (302), the rear end of the rotating rod (302) is rotatably connected to one side of the bottom of the safety valve (1) via a pin, the bottom of the rotating rod (302) is fixedly connected with a straight cylinder (305), the inner wall of one end of the straight cylinder (305) is threadedly connected with a screw (306), one end of the screw (306) is rotatably connected with an insertion rod (304) via a bearing, and one side of the outer wall of the insertion rod (304) is gap-matched with the inner wall of the other end of the straight cylinder (305) and the groove of one end of the protrusion (303).

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