Sensor assembly leakage detection device

Abstract

The utility model discloses a sensor assembly leakage detection device, which comprises a detection platform, two groups of connecting assemblies, a fixing assembly and two groups of detection assemblies, wherein the top of the detection platform is fixedly provided with two groups of connecting assemblies, the top of the detection platform is fixedly provided with a fixing assembly, and a ventilation assembly is fixedly arranged between the two groups of detection assemblies. The output end and the input end of the sensor assembly are respectively connected with the two connectors, and the rubber ring ensures the sealing performance of the connection; liquid is injected into the annular plate to detect the tightness of connection between the connector and the sensor assembly, if the connection is not tight, bubbles are generated in the liquid, and the tightness of connection between the connector and the sensor assembly can be guaranteed by replacing the rubber ring; therefore, connection looseness of the sensor assembly and the pipeline can be found conveniently, and normal detection of the sensor assembly is prevented from being affected by untight connection positions.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor detection, in particular to a sensor assembly leakage detection device. Background Art

[0002] In the industrial production process, it is necessary to receive signals through sensors so that the controller can control the orderly operation of the production equipment. Commonly used sensors include temperature sensors, distance sensors, flow sensors, etc. When the flow sensor assembly is in use, fluid will pass through it, and it is necessary to ensure that it will not leak, so its anti-leakage performance needs to be tested.

[0003] Conventionally, when the flow sensor assembly is tested for leaks, the sensor assembly is manually connected to the pipeline. However, after multiple tests, the end of the pipeline is easily deformed and the connection with the sensor assembly is not tight, which can easily cause fluid leakage at the connection. This is difficult to detect manually, thus affecting the test results. Further improvements can be made. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sensor assembly leakage detection device, which has the advantages of being easy to detect loose connections between the sensor assembly and the pipeline, and solves the problem of pipeline deformation and loose sensor connection affecting the detection results.

[0005] In order to achieve the above-mentioned purpose of facilitating the discovery of loose connections between the sensor assembly and the pipeline, the utility model provides the following technical solutions: a sensor assembly leakage detection device, comprising a detection platform, two groups of connecting components are fixedly installed on the top of the detection platform, the two groups of connecting components are respectively connected to the air inlet end and the air outlet end of the sensor assembly, a fixing component is fixedly installed on the top of the detection platform, the fixing component is located directly above the connecting component, the fixing component is used to fix the sensor assembly, two groups of detection components are fixedly installed on the top of the detection platform, the two groups of detection components are respectively connected to the two groups of connecting components, and a ventilation component is fixedly installed between the two groups of detection components.

[0006] Preferably, the connecting assembly includes two annular plates fixedly mounted on the top of the testing platform, a connecting head is provided at the center of the annular plates, the connecting head is passed through and fixed on the testing platform, an annular groove is provided on the circumferential surface of the top end of the connecting head, and a rubber ring is provided on the annular groove of the connecting head.

[0007] Preferably, the top of the connector is located at the lower side of the top of the annular plate, a drainage hole is opened on the surface of the annular plate, the drainage hole is connected to the inside of the annular plate, and a sealing plug is inserted into the opening of the drainage hole located on the outside of the annular plate.

[0008] Preferably, two groups of pads distributed on the left and right are fixedly mounted on the top of the annular plate.

[0009] Preferably, the fixing assembly includes two groups of support plates fixedly mounted on the top of the testing platform, the support plates have an arched cross-section when viewed from above, a top plate is fixedly mounted on the top of the support plates, a pressure plate is slidably connected between the two groups of support plates, and a spring is fixedly mounted between the top center of the pressure plate and the top plate.

[0010] Preferably, the detection assembly includes two groups of indicator tubes fixed on the top of the detection platform, the two groups of indicator tubes are fixedly installed with connecting pipes at one end opposite to each other, the other end of the connecting pipes is fixedly installed at the bottom of the connecting head, an annular partition is fixedly installed in the middle of the inner wall of the indicator tube, a piston plate is slidably connected in the left half of the indicator tube, a capacity scale is provided on the outer wall of the left half of the indicator tube, an air guide tube is fixedly installed at the other end of the indicator tube, and a control valve is provided in the middle of the air guide tube.

[0011] Preferably, a laser lamp is embedded in the piston plate, and a through hole is opened on the circumferential surface of the piston plate, and the through hole extends to the output end of the laser lamp.

[0012] Preferably, the ventilation assembly includes a mounting cover fixedly mounted on the top of the test bench, the other ends of the two groups of air guide tubes are fixedly mounted on the rear side of the mounting cover, and a docking tube is fixedly mounted on the front side of the mounting cover.

[0013] Beneficial effects: The sensor assembly leakage detection device connects the output end and the input end of the sensor assembly to two connectors respectively, and the rubber ring ensures the sealing of the connection; by injecting liquid into the annular plate, it is used to detect the tightness of the connection between the connector and the sensor assembly. If the connection is not tight, bubbles will be generated in the liquid. The rubber ring can be replaced to ensure the tightness of the connection between the connector and the sensor assembly; thereby, the purpose of facilitating the discovery of loose connection between the sensor assembly and the pipeline is achieved, and the loose connection is avoided to affect the normal detection of the sensor assembly; the sensor assembly leakage detection device compares the amount of gas entering the sensor assembly through the left indicator tube with the amount of gas entering the right indicator tube of the sensor assembly, that is, the index of the left piston plate on the capacity scale is compared with the index of the right piston plate on the capacity scale. If they are equal, the sensor assembly has good sealing; if the index of the right piston plate on the capacity scale is relatively small, the sensor assembly has poor sealing. Thus, the purpose of intuitively reflecting the air tightness of the sensor assembly is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the three-dimensional structure of a sensor assembly leakage detection device proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of a connection component of a sensor assembly leakage detection device proposed by the utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of a fixed component of a sensor assembly leakage detection device proposed by the utility model;

[0017] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a detection component of a sensor assembly leakage detection device proposed by the present invention.

[0018] In the figure: 1. test bench; 2. connection assembly; 3. fixing assembly; 4. test assembly; 5. ventilation assembly; 201. annular plate; 202. connector; 203. annular groove; 204. rubber ring; 205. drainage hole; 206. sealing plug; 207. pad; 301. support plate; 302. top plate; 303. pressure plate; 304. spring; 401. indicator tube; 402. connecting pipe; 403. annular partition; 404. piston plate; 405. laser lamp; 406. capacity scale; 407. air guide pipe; 408. control valve; 501. installation cover; 502. docking pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 A sensor assembly leakage detection device includes a detection platform 1, two groups of connecting components 2 are fixedly installed on the top of the detection platform 1, and the two groups of connecting components 2 are respectively connected to the air inlet end and the air outlet end of the sensor assembly. A fixing component 3 is fixedly installed on the top of the detection platform 1, and the fixing component 3 is located directly above the connecting component 2. The fixing component 3 is used to fix the sensor assembly. Two groups of detection components 4 are fixedly installed on the top of the detection platform 1, and the two groups of detection components 4 are respectively connected to the two groups of connecting components 2, and a ventilation component 5 is fixedly installed between the two groups of detection components 4.

[0021] See also Figure 2The connection assembly 2 includes two annular plates 201 fixedly mounted on the top of the test bench 1. A connector 202 is arranged at the center of the annular plate 201. The connector 202 penetrates and is fixed on the test bench 1. An annular groove 203 is provided on the circumferential surface of the top of the connector 202. The connector 202 is provided with a rubber ring 204 on the annular groove 203. The two annular plates 201 are used to connect the air inlet and outlet ends of the sensor assembly. The rubber ring 204 is arranged to tightly connect the annular plate 201 and the sensor assembly to prevent gas leakage from the connection between the annular plate 201 and the sensor assembly. The top of the connector 202 is located at the lower side of the top of the annular plate 201, so that the connection between the sensor assembly and the annular plate 201 is located inside the annular plate 201. Liquid can be injected into the annular plate 201. If there is a gap between the sensor assembly and the annular plate 201, bubbles will be generated in the liquid to remind the tester that the connection is not tight. The surface of the annular plate 201 is provided with a drainage hole 205, which is connected to the inside of the annular plate 201. A sealing plug 206 is inserted into the opening of the drainage hole 205 located on the outside of the annular plate 201. The liquid inside the annular plate 201 can be discharged through the drainage hole 205. Two groups of pads 207 distributed on the left and right are fixedly installed on the top of the annular plate 201. The pads 207 are placed on the bottom of the sensor assembly to prevent the sensor assembly from sealing the opening of the annular plate 201. Bubbles generated in the liquid can be observed through the gap between the sensor assembly and the annular plate 201.

[0022] See also Figure 3 The fixing assembly 3 includes two groups of support plates 301 fixedly mounted on the top of the detection platform 1. The support plates 301 have an arched cross-section when viewed from above. Slide bars are arranged on both side walls of the support plates 301. The cross-section of the slide bars is an isosceles trapezoid. Slots are arranged on both sides of the pressing plate 303. The pressing plate 303 is slidably connected to the slide bars through the slots. A top plate 302 is fixedly mounted on the top of the support plates 301. A pressing plate 303 is slidably connected between the two groups of support plates 301. A spring 304 is fixedly mounted between the top center of the pressing plate 303 and the top plate 302. Due to the elasticity of the spring 304, the pressing plate 303 has a tendency to move downward. The sensor assembly is fixed by clamping the pressing plate 303 and the pad 207 on the upper and lower sides of the sensor assembly.

[0023] See also Figure 4The detection assembly 4 includes two groups of indicator tubes 401 fixed on the top of the detection platform 1. The indicator tubes 401 are made of transparent materials, such as glass, acrylic, plastic, etc. A connecting tube 402 is fixedly installed at one end of the two groups of indicator tubes 401 opposite to each other, and the other end of the connecting tube 402 is fixedly installed at the bottom of the connector 202. An annular partition 403 is fixedly installed in the middle of the inner wall of the indicator tube 401, and a piston plate 404 is slidably connected in the left half of the indicator tube 401, and the piston plate 404 is limited by the annular partition 403. A capacity scale 406 is set on the outer wall of the left half of the indicator tube 401. When the piston plate 404 is attached to the left side of the annular partition 403, the right edge of the piston plate 404 is aligned with the zero scale line of the capacity scale 406. An air guide tube 407 is fixedly installed at the other end of the indicator tube 401, and a control valve 408 is set in the middle of the air guide tube 407. The opening and closing of the air guide tube 407 is controlled by the control valve 408. A laser lamp 405 is embedded inside the piston plate 404, and a through hole is opened on the circumferential surface of the piston plate 404, and the through hole extends to the output end of the laser lamp 405. Therefore, the light emitted by the laser lamp 405 is irradiated on the capacity scale 406, which is convenient for reading.

[0024] See also Figure 4 The ventilation assembly 5 includes a mounting cover 501 fixedly mounted on the top of the test bench 1, the other ends of the two sets of air guide tubes 407 are fixedly mounted on the rear side of the mounting cover 501, and a butt joint pipe 502 is fixedly mounted on the front side of the mounting cover 501. The butt joint pipe 502 can be connected to the input end of the air pump to extract air from the mounting cover 501, and can also be connected to the output end of the air pump through the butt joint pipe 502 to fill the mounting cover 501.

[0025] Working principle: The output and input ends of the sensor assembly are connected to two connectors 202 respectively, and the rubber ring 204 ensures the sealing of the connection;

[0026] Then connect the butt joint pipe 502 to the output end of the air pump, close the control valve 408 on the right, and open the air guide pipe 407 on the left, so that the air pump inflates the installation cover 501, and then inflates the indicator tube 401 on the left through the air guide pipe 407 on the left, and the piston plate 404 on the left slides to the left, and then injects air into the sensor assembly through the connecting pipe 402 and the connecting head 202 on the left; thereafter, the air enters the inside of the indicator tube 401 on the right through the output end of the sensor assembly, the connecting head 202 on the right, and the connecting pipe 402 on the right;

[0027] Liquid is injected into the annular plate 201 to detect the tightness of the connection between the connector 202 and the sensor assembly. If the connection is not tight, bubbles will be generated in the liquid. The tightness of the connection between the connector 202 and the sensor assembly can be ensured by replacing the rubber ring 204.

[0028] The amount of gas entering the sensor assembly through the left indicator tube 401 is compared with the amount of gas entering the right indicator tube 401 from the sensor assembly, that is, the index of the left piston plate 404 on the capacity scale 406 is compared with the index of the right piston plate 404 on the capacity scale 406. If they are equal, the sensor assembly has good sealing performance; if the index of the right piston plate 404 on the capacity scale 406 is relatively small, the sensor assembly has poor sealing performance.

[0029] After the test is completed, the left control valve 408 can be closed, the right control valve 408 can be opened, and air can be inflated into the installation cover 501 through the docking tube 502, thereby inflating the inside of the right indicator tube 401 to reset the right piston plate 404 to the right annular partition 403; then the right control valve 408 is closed, the left control valve 408 is opened, the docking tube 502 is connected to the air pump input end, and air is extracted from the installation cover 501, thereby resetting the left piston plate 404 to the left annular partition 403; this is convenient for the next test.

Claims

1. A sensor assembly leakage detection device, comprising a detection station (1), characterized in that: Two groups of connection components (2) are fixedly installed on the top of the detection platform (1), and the two groups of connection components (2) are respectively connected to the air inlet end and the air outlet end of the sensor assembly. A fixing component (3) is fixedly installed on the top of the detection platform (1), and the fixing component (3) is located directly above the connection component (2). The fixing component (3) is used to fix the sensor assembly. Two groups of detection components (4) are fixedly installed on the top of the detection platform (1), and the two groups of detection components (4) are respectively connected to the two groups of connection components (2). A ventilation component (5) is fixedly installed between the two groups of detection components (4).

2. The sensor assembly leakage detection device according to claim 1, characterized in that: The connection assembly (2) comprises two annular plates (201) fixedly mounted on the top of the detection platform (1); a connection head (202) is arranged at the center of the annular plates (201); the connection head (202) penetrates and is fixed on the detection platform (1); an annular groove (203) is provided on the top circumferential surface of the connection head (202); and a rubber ring (204) is sleeved on the connection head (202) located on the annular groove (203).

3. The sensor assembly leakage detection device according to claim 2, characterized in that: The top of the connector (202) is located at the lower side of the top of the annular plate (201); a drainage hole (205) is provided on the surface of the annular plate (201); the drainage hole (205) is connected to the inside of the annular plate (201); and a sealing plug (206) is inserted into the opening of the drainage hole (205) located on the outside of the annular plate (201).

4. The sensor assembly leakage detection device according to claim 3, characterized in that: Two groups of cushion blocks (207) distributed on the left and right are fixedly mounted on the top of the annular plate (201).

5. The sensor assembly leakage detection device according to claim 1, characterized in that: The fixing assembly (3) comprises two groups of support plates (301) fixedly mounted on the top of the detection platform (1); the support plates (301) have an arched cross-section when viewed from above; a top plate (302) is fixedly mounted on the top of the support plates (301); a pressure plate (303) is slidably connected between the two groups of support plates (301); and a spring (304) is fixedly mounted between the top center of the pressure plate (303) and the top plate (302).

6. The sensor assembly leakage detection device according to claim 1, characterized in that: The detection assembly (4) comprises two groups of indicator tubes (401) fixed on the top of the detection platform (1); a connecting tube (402) is fixedly installed at one end of the two groups of indicator tubes (401) opposite to each other; the other end of the connecting tube (402) is fixedly installed at the bottom of the connector (202); an annular partition plate (403) is fixedly installed in the middle of the inner wall of the indicator tube (401); a piston plate (404) is slidably connected in the left half of the indicator tube (401); a capacity scale (406) is arranged on the outer wall of the left half of the indicator tube (401); an air guide tube (407) is fixedly installed at the other end of the indicator tube (401); a control valve (408) is arranged in the middle of the air guide tube (407).

7. The sensor assembly leakage detection device according to claim 6, characterized in that: A laser lamp (405) is embedded in the piston plate (404), and a through hole is opened on the circumferential surface of the piston plate (404), and the through hole extends to the output end of the laser lamp (405).

8. The sensor assembly leakage detection device according to claim 6, characterized in that: The ventilation assembly (5) comprises a mounting cover (501) fixedly mounted on the top of the detection platform (1), the other ends of the two groups of air guide tubes (407) are fixedly mounted on the rear side of the mounting cover (501), and a docking tube (502) is fixedly mounted on the front side of the mounting cover (501).

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