Anti-pressure capability detection device for electromagnetic valve

Abstract

The utility model relates to the technical field of valve body anti-pressure capability detection, in particular to an anti-pressure capability detection device for an electromagnetic valve, which comprises a bottom frame, a clamping mechanism arranged on the upper side of the bottom frame, and detection mechanisms positioned on the front side and the rear side of the clamping mechanism. The device has the beneficial effects that before pressure resistance detection of the valve body is carried out, a sliding plate is pushed by an air cylinder in a sealing assembly to drive a conical plug to move towards the end part of the valve body, and the conical plug is driven to rotate while moving by utilizing a rotating structure while moving, so that dust and impurities possibly accumulated at the end part of the valve body are brushed by matching with a cleaning structure; meanwhile, the end part of the valve body is blocked and sealed, impurities are prevented from being adhered to the end part of the valve body again during blocking, and the cleaned and brushed dust is adsorbed and collected under the action of the cleaning structure, so that the influence of the dust on the sealing performance of the end part of the valve body is reduced, and the sealing effect during compression resistance detection of the valve body is improved; and the accuracy of pressure resistance detection data of the valve body is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve body pressure resistance testing technology, and in particular to a pressure resistance testing device for solenoid valves. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the conveyed medium. They are control components in fluid conveying systems and have functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief. Before valves are manufactured, their airtightness and pressure resistance must be tested, which requires the use of pressure testing devices.

[0003] By comparing a valve pressure testing device according to patent publication number CN219914779U, it is found that in this solution, the valve needs to undergo pressure testing before production. After the valve is manufactured, certain impurities or dust may accumulate at the valve ends. Therefore, this device directly seals both ends of the valve before the pressure test. As a result, there may be some dust and impurities at the valve ends. If the dust and impurities are not cleaned, directly sealing the valve ends may cause leakage of the gas introduced into the valve body during the pressure test, reducing the sealing effect at the valve ends and potentially leading to inaccurate pressure test data. Utility Model Content

[0004] The purpose of this invention is to provide a pressure resistance testing device for solenoid valves in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A pressure resistance testing device for a solenoid valve includes a base frame, a clamping mechanism on the upper side of the base frame, and a testing mechanism for testing the pressure resistance of the valve body, the testing mechanism being located on the front and rear sides of the clamping mechanism.

[0007] The testing mechanism includes a testing component for testing the pressure resistance of the valve body and a sealing component for sealing the ends of the valve body;

[0008] The sealing assembly includes sliding grooves on the front and rear sides of the base frame. Sliding plates are slidably installed in the sliding grooves. A cylinder is installed between the bottom end of the sliding plate and the sliding groove. Rotating columns are rotatably installed at one end of the two sliding plates that are close to each other. Conical plugs are fixed at one end of the two rotating columns that are close to each other. The conical plugs are made of rubber. A cleaning structure is provided at the small end of the conical plugs. The cleaning structure is used to clean dust and impurities present in the end of the valve body.

[0009] Preferred: The cleaning structure includes multiple soft brushes fixedly mounted at the small end of the conical plug, a through hole provided at the center of the rotating column and the conical plug, multiple air extraction holes provided between the gaps of the multiple sets of soft brushes, a dust collection box provided on the side of the sliding plate away from the conical plug, a waste bin slidably installed inside the dust collection box, multiple filter holes provided at the bottom of the waste bin, an exhaust fan provided below the waste bin, an air pipe connected between the dust collection box and the through hole in the rotating column, the air pipe and the through hole in the rotating column are sealed and slide together, a control valve is installed near the end of the air pipe near the dust collection box, and a rotating structure is provided on the outside of the rotating column, the rotating structure being used to drive the rotating column to rotate the conical plug.

[0010] Preferably, the rotating structure includes a fixed sleeve disposed on the outside of the rotating column, the fixed sleeve being fixedly connected to the base frame via a connecting plate, a sliding plate being slidably connected to the inner wall of the fixed sleeve, a fixed column being fixed on the inner wall of the fixed sleeve, a spiral groove being opened on the side wall of the rotating column, the fixed column being slidably disposed in the spiral groove, and a dust collection box being fixed at the end of the fixed sleeve away from the conical plug.

[0011] Preferably, the detection component includes an air pump located at the upper end of the fixed sleeve, an air supply pipe connected between the air pump and the air supply pipe, and a pressure gauge installed on the air supply pipe.

[0012] Preferably, the conical plug has multiple sealing rings on its sidewall and multiple soft brushes are distributed around the center of the conical plug.

[0013] Preferably, the exhaust port is conical at one end, with the larger end of the conical shape being the larger end; the conical plug is conical at one end, with the larger end being the one closest to the valve body; and a handle is fixed on the side wall of the waste bin.

[0014] Compared with existing technologies, the beneficial effects are as follows:

[0015] Before the valve body pressure test, the cylinder in the sealing assembly pushes the sliding plate to move the conical plug towards the end of the valve body. While moving, the rotating structure drives the conical plug to rotate, which, in conjunction with the cleaning structure, cleans the dust and impurities that may have accumulated at the end of the valve body. At the same time, the end of the valve body is sealed to prevent impurities from adhering to the end of the valve body again during the sealing process. The cleaning structure then absorbs and collects the cleaned dust, thereby reducing the impact of dust on the sealing performance of the valve body end, improving the sealing effect during the valve body pressure test, and improving the accuracy of the valve body pressure test data. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a spatial perspective view of the solenoid valve pressure resistance testing device described in this utility model;

[0018] Figure 2 This is a schematic diagram of the clamping mechanism of the solenoid valve pressure resistance testing device described in this utility model;

[0019] Figure 3 This is a schematic diagram of the detection mechanism of the solenoid valve pressure resistance testing device described in this utility model;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the testing mechanism of the solenoid valve pressure resistance testing device described in this utility model;

[0021] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0022] Figure 6 yes Figure 4 A magnified view of a section at point B in the middle;

[0023] Figure 7 This is a schematic diagram of the structure between the fixed sleeve and the rotating column of the solenoid valve pressure resistance testing device described in this utility model.

[0024] The annotations in the attached figures are explained as follows:

[0025] 100. Base frame; 201. Slide groove; 202. Cylinder; 203. Sliding plate; 204. Fixing sleeve; 205. Rotating column; 206. Conical plug; 207. Fixing column; 208. Spiral groove; 209. Soft brush; 210. Air extraction port; 211. Sealing ring; 212. Vent pipe; 213. Air pump; 214. Air supply pipe; 215. Pressure gauge; 216. Dust collection box; 217. Waste bin; 218. Exhaust fan; 219. Control valve; 301. Slide rail; 302. Lead screw; 303. Rotating motor; 304. Sliding seat; 305. Sliding frame; 306. Threaded rod; 307. Clamping jaw. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-7 As shown, a pressure resistance testing device for a solenoid valve includes a base frame 100, a clamping mechanism for clamping and fixing the valve body, the clamping mechanism being located on the upper side of the base frame 100, and a testing mechanism for testing the pressure resistance of the valve body, the testing mechanism being located on the front and rear sides of the clamping mechanism.

[0029] In this embodiment: the clamping mechanism includes a slide rail 301 fixedly mounted above the base frame 100. A lead screw 302 is rotatably mounted inside the slide rail 301. A rotary motor 303 is mounted on the rotating end of the lead screw 302. Two symmetrical sliding seats 304 are slidably arranged inside the slide rail 301. The sliding seats 304 are threadedly connected to the lead screw 302. The threads at both ends of the lead screw 302 are in opposite directions. A sliding frame 305 is fixed to the upper end of the sliding seat 304. A threaded rod 306 is rotatably mounted inside the sliding frame 305. Two symmetrical grippers 307 are slidably mounted inside the sliding frame 305. The bottom ends of the grippers 307 are connected to the threaded rod. The 306 threaded connection has threads on both ends of the threaded rod 306 in opposite directions. A rotating handle is fixed to the rear end of the threaded rod 306. The valve body with detection is placed between two jaws 307. The drive motor 303 drives the lead screw 302 to rotate, which in turn drives the two sliding seats 304 to move towards each other and the two sliding frames 305 to move towards each other. Then, the rotating handle is rotated to drive the threaded rod 306 to rotate, which in turn drives the two jaws 307 to move closer and further apart. The distance between the two jaws 307 can be adjusted to adapt to valve bodies of different sizes. The two jaws 307 are used to clamp and fix the valve body.

[0030] In this embodiment, the detection mechanism includes a detection component for detecting the pressure resistance of the valve body and a sealing component for sealing the end of the valve body.

[0031] The sealing assembly includes sliding grooves 201 on the front and rear sides of the base frame 100. Sliding plates 203 are slidably installed in the sliding grooves 201. A cylinder 202 is provided between the bottom end of the sliding plate 203 and the sliding groove 201. Rotating columns 205 are rotatably installed at one end of the two sliding plates 203 close to each other. Conical plugs 206 are fixed at one end of the two rotating columns 205 close to each other. The conical plugs 206 are made of rubber. Multiple sealing rings 211 are provided on the side wall of the conical plugs 206. A cleaning structure is provided at the small end of the conical plugs 206. The cleaning structure is used to clean dust and impurities present in the end of the valve body.

[0032] The cleaning structure includes multiple soft brushes 209 fixedly mounted at the small end of the conical plug 206. The multiple soft brushes 209 are distributed around the center of the conical plug 206. A through hole is provided at the center of the rotating column 205 and the conical plug 206. Multiple air extraction holes 210 are provided between the gaps of the multiple sets of soft brushes 209. The air extraction hole 210 is conical at one end, with the larger end of the conical shape. The small end of the conical plug 206 is conical, with the larger end of the conical shape closer to the valve body. A dust collection box 216 is provided on the side of the sliding plate 203 away from the conical plug 206. The dust collection box 216 contains a sliding... A waste bin 217 is installed, with multiple filter holes at the bottom of the waste bin 217. An exhaust fan 218 is installed below the waste bin 217. A handle is fixed on the side wall of the waste bin 217. A vent pipe 212 is connected between the dust collection box 216 and the through hole in the rotating column 205. The vent pipe 212 and the through hole in the rotating column 205 are sealed and slide together. A control valve 219 is installed at the end of the vent pipe 212 near the end of the dust collection box 216. A rotating structure is provided on the outside of the rotating column 205. The rotating structure is used to drive the rotating column 205 to rotate the conical plug 206.

[0033] The rotating structure includes a fixed sleeve 204 disposed on the outside of the rotating column 205. The fixed sleeve 204 is fixedly connected to the base frame 100 through a connecting plate. The sliding plate 203 is slidably connected to the inner wall of the fixed sleeve 204. A fixed column 207 is fixed on the inner wall of the fixed sleeve 204. A spiral groove 208 is opened on the side wall of the rotating column 205. The fixed column 207 is slidably disposed in the spiral groove 208. The dust collection box 216 is fixed to the end of the fixed sleeve 204 away from the conical plug 206.

[0034] The testing assembly includes an air pump 213 mounted on the upper end of the fixed sleeve 204. An air supply pipe 214 is connected between the air pump 213 and the air pipe 212. A pressure gauge 215 is installed on the air supply pipe 214. Before the valve body pressure test, the cylinder 202 in the sealing assembly pushes the sliding plate 203 to move the conical plug 206 towards the end of the valve body. While moving, the rotating structure drives the conical plug 206 to rotate, which, in conjunction with the cleaning structure, cleans the dust and impurities that may accumulate at the end of the valve body. At the same time, the end of the valve body is sealed to prevent impurities from adhering to the end of the valve body again during sealing. The cleaning structure then absorbs and collects the cleaned dust, thereby reducing the impact of dust on the sealing performance of the valve body end, improving the sealing effect during the valve body pressure test, and improving the accuracy of the valve body pressure test data.

[0035] Working principle: First, the valve body with detection is placed between the two grippers 307. The drive motor 303 drives the lead screw 302 to rotate, which in turn drives the two sliding seats 304 to move towards each other and the two sliding frames 305 to move towards each other. Then, the rotating handle is rotated to drive the threaded rod 306 to rotate, which in turn drives the two grippers 307 to move closer and further apart. The distance between the two grippers 307 is adjusted to adapt to valve bodies of different sizes. The two grippers 307 are used to clamp and fix the valve body.

[0036] After the valve body is clamped and fixed, two cylinders 202 push two sliding plates 203 to move towards each other, causing two rotating columns 205 and conical plugs 206 to move towards each other. The two conical plugs 206 are then inserted into the ends of the valve body, sealing both ends. When the two conical plugs 206 are inserted into the valve body ends, the spiral groove 208 on the side wall of the rotating column 205 slides against the fixed column 207 fixed on the inner wall of the fixed sleeve 204, causing the rotating column 205 to rotate, which in turn causes the conical plugs 206 to rotate. As the conical plugs 206 rotate and insert into the valve body ends, they further... The multiple soft brushes 209 at the small end of the conical plug 206 rotate and clean the dust or impurities that may accumulate at the end of the valve body. The control valve 219 is opened, allowing air to flow into the dust collection box 216. At the same time, the rotation of the exhaust fan 218 creates a negative pressure in the dust collection box 216 and the ventilation pipe 212. The negative pressure draws the dust cleaned by the soft brushes 209 through the air extraction holes 210 between the soft brushes 209 and the port at the small end of the conical plug 206 into the ventilation pipe 212, and then into the waste bin 217 inside the dust collection box 216. Later, the waste bin 217 is pulled out to clean the impurities and dust inside.

[0037] After cleaning the end of the valve body, close the control valve 219 to cut off the airflow near the dust collection box 216 in the vent pipe 212, preventing the airflow from entering the dust collection box 216 and overflowing outwards. Then, turn on the air pump 213 to introduce airflow into the air supply pipe 214. The airflow then flows through the vent pipe 212 into the through hole of the conical plug 206, and then enters the valve body, continuously pressurizing the inside of the valve body. Observe the air pressure gauge 215 installed on the air supply pipe 214 to determine whether there is any leakage or cracking in the valve body, so as to carry out subsequent pressure resistance testing on the valve body.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pressure resistance testing device for a solenoid valve, comprising a base frame (100), wherein a clamping mechanism is provided on the upper side of the base frame (100), characterized in that: It also includes a testing mechanism for testing the pressure resistance of the valve body, the testing mechanism being located on both the front and rear sides of the clamping mechanism; The testing mechanism includes a testing component for testing the compressive strength of the valve body and a sealing component for sealing the end of the valve body. The sealing assembly includes sliding grooves (201) on the front and rear sides of the base frame (100). A sliding plate (203) is slidably installed in the sliding groove (201). A cylinder (202) is provided between the bottom end of the sliding plate (203) and the sliding groove (201). A rotating column (205) is rotatably installed on one end of the two sliding plates (203) close to each other. A conical plug (206) is fixed on one end of the two rotating columns (205) close to each other. The conical plug (206) is made of rubber. A cleaning structure is provided at the small end of the conical plug (206). The cleaning structure is used to clean the dust and impurities present in the end of the valve body.

2. The pressure resistance testing device for a solenoid valve according to claim 1, characterized in that: The cleaning structure includes multiple soft brushes (209) fixedly mounted at the small end of the conical plug (206). A through hole is provided between the rotating column (205) and the center of the conical plug (206). Multiple air extraction holes (210) are provided between the gaps of the multiple sets of soft brushes (209). A dust collection box (216) is provided on the side of the sliding plate (203) away from the conical plug (206). A waste bin (217) is slidably installed inside the dust collection box (216). Multiple filter holes are provided at the bottom of the waste bin (217). (217) An exhaust fan (218) is provided below. A vent pipe (212) is connected between the dust collection box (216) and the through hole in the rotating column (205). The vent pipe (212) and the through hole in the rotating column (205) are sealed and slide together. A control valve (219) is installed near the end of the vent pipe (212) close to the dust collection box (216). A rotating structure is provided on the outside of the rotating column (205). The rotating structure is used to drive the rotating column (205) to rotate the conical plug (206).

3. The pressure resistance testing device for a solenoid valve according to claim 2, characterized in that: The rotating structure includes a fixed sleeve (204) disposed on the outside of the rotating column (205). The fixed sleeve (204) is fixedly connected to the base frame (100) through a connecting plate. The sliding plate (203) is slidably connected to the inner wall of the fixed sleeve (204). A fixed column (207) is fixed on the inner wall of the fixed sleeve (204). A spiral groove (208) is opened on the side wall of the rotating column (205). The fixed column (207) is slidably disposed in the spiral groove (208). The dust collection box (216) is fixed to the end of the fixed sleeve (204) away from the conical plug (206).

4. The pressure resistance testing device for a solenoid valve according to claim 3, characterized in that: The detection component includes an air pump (213) disposed on the upper end of the fixed sleeve (204), and an air supply pipe (214) is connected between the air pump (213) and the air pipe (212), and a pressure gauge (215) is installed on the air supply pipe (214).

5. The pressure resistance testing device for a solenoid valve according to claim 4, characterized in that: The conical plug (206) has multiple sealing rings (211) on its sidewall, and multiple soft brushes (209) are distributed around the center of the conical plug (206).

6. The pressure resistance testing device for a solenoid valve according to claim 5, characterized in that: The air extraction hole (210) is conical at one end and the larger end of the conical shape is at the other end. The conical plug (206) is conical at the smaller end and the larger end of the conical shape is at the end closest to the valve body. A handle is fixed on the side wall of the waste bin (217).

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