Flow switch quality detection device

Abstract

This invention discloses a flow switch quality testing device, which relates to the field of switch testing technology. This flow switch quality testing device, through the setting of a connecting sealing component, allows the elastic rubber ring to be squeezed when the flow switch body is pressed, causing the inner side of the elastic rubber ring to deform and completely fit against the outer side of the flow probe. This improves the sealing performance and prevents circulating water leakage during testing. Simultaneously, the elastic rubber ring allows for the testing of the seal at the connection between the assembly end and the flow probe, preventing dust and other contaminants from entering the flow switch body due to insufficient sealing. This improves the testing effect and convenience of the device.

Description

Technical Field

[0001] This invention relates to the field of switch testing technology, specifically to a flow switch quality testing device. Background Technology

[0002] Flow switches include infrared water flow switches, thermal flow switches, explosion-proof flow switches, etc. Chinese patent CN218726821U discloses a quality testing device for explosion-proof flow switches. This patent solves the problem that existing testing devices lack high-temperature resistance testing of flow switches to check whether they will deform and malfunction. However, the testing performance is still relatively simple. After the test, the accuracy of the flow switch and the sealing performance still need to be manually tested, which is cumbersome. In response, we propose a quality testing device for flow switches to solve the above problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a flow switch quality testing device, which solves the problems of limited testing performance and cumbersome testing methods.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a flow switch quality testing device, comprising a body, a sealing door rotatably mounted on the outer side of the body and a viewing window fixed inside the sealing door, a flow switch body disposed inside the body, a support assembly disposed at the bottom of the flow switch body, a partition fixed inside the body, and a test pipeline fixed inside the partition, a test pump body disposed inside the test pipeline, a circulating water tank fixed on the outer side of the body and connected to the test pipeline, a tee pipe fixed on the top surface of the test pipeline, and a connecting sealing assembly disposed at the end of the tee pipe, the connecting sealing assembly comprising a threaded connecting pipe. The threaded connecting pipe is fixed above the test pipeline via a tee pipe. A sealing plate is fixed to the top surface of the threaded connecting pipe, and an elastic rubber ring is fixed to the top surface of the sealing plate. The elastic rubber ring and the sealing plate are hollow annular in shape and maintain a seal. An air vent is opened inside the elastic rubber ring. A pad is fixed to the top surface of the sealing plate. The pad is installed inside the elastic rubber ring and the sealing plate. An air inlet pipe is fixed inside the pad. A pressurizing pump body is fixed inside the machine body, and a pressurizing pipe is fixed to the end of the pressurizing pump body. The end of the pressurizing pipe is fixedly connected to the air inlet pipe. A heating detection component is provided on the top surface of the flow switch body.

[0005] Preferably, the heating detection assembly includes a heating cover, a hydraulic cylinder is fixed to the top surface of the inner side of the machine body and a pressure plate is fixed to the end of the hydraulic cylinder, the heating cover is fixed to the end of the hydraulic cylinder, the pressure plate is located inside the heating cover, a heating module is fixed inside the heating cover, and a cooling assembly is provided above the heating cover.

[0006] Preferably, the cooling assembly includes a cooling coil, which is fixed inside the machine body and above the heating shroud. Both ends of the cooling coil are equipped with micro-tubes. A circulating water tank is fixed to the outside of the machine body, and a micro-pump that is interconnected is fixed to the outside of the circulating water tank. The two sections of the micro-tubes are respectively fixedly connected to the outlet end of the micro-pump and the top surface of the circulating water tank. A protective assembly is provided on one side of the inside of the heating shroud.

[0007] Preferably, the protective component includes an arc-shaped frame, which is fixed to the inside of the heating cover. A cooling module is fixed inside the arc-shaped frame, and cooling pipes are fixed to both ends of the outer side of the cooling module. The ends of the two cooling pipes are respectively connected to two micro-tubes.

[0008] Preferably, the bottom of the arc-shaped frame is provided with an arc-shaped opening, and the arc-shaped opening is located at the center of the bottom of the arc-shaped frame.

[0009] Preferably, the cooling module is interconnected with two microtubes through the cooperation of two cooling pipes.

[0010] Preferably, the flow switch body has an assembly end fixed at the bottom, and a flow probe is fixed inside the assembly end. The end of the flow probe extends out of the assembly end. A wiring terminal is fixed on the side of the flow switch body, and a wire is provided inside the wiring terminal.

[0011] Preferably, the threaded connecting pipe and the sealing plate are always coaxial, and the inner side of the elastic rubber ring is annular.

[0012] Preferably, the support assembly includes a support ring frame, a sleeve rod is fixed to the bottom of the support ring frame, and an inner slide rod is slidably installed inside the sleeve rod. The inner slide rods are respectively fixed to the top surface of the partition, and a spring body is fixedly installed between the end of the inner slide rod and the corresponding sleeve rod.

[0013] Preferably, a protective pad is fixedly installed on the top surface of the support ring frame, and the installation position of the support ring frame is always flush with the horizontal plane. Beneficial effects

[0014] This invention provides a flow switch quality detection device. Compared with the prior art, it has the following advantages: (1) The flow switch quality testing device, through the setting of the connecting sealing component, when the flow switch body is pressed and the bottom assembly end moves down, it can squeeze the elastic rubber ring, so that the inner side of the elastic rubber ring deforms and completely fits the outer side of the flow probe, which improves the sealing performance and avoids the phenomenon of circulating water leakage during the test. At the same time, through the setting of the elastic rubber ring, the sealing performance of the connection between the assembly end and the flow probe can be tested, avoiding dust and other objects from entering the flow switch body due to insufficient sealing performance, thus improving the testing effect and convenience of the equipment.

[0015] (2) The flow switch quality detection device, through the setting of the heating detection component, can heat the flow switch body during the test by running the heating module. As the temperature rises during the heating process, the value of the flow switch body is recorded, which makes it easier to judge the accuracy of the flow switch body under different temperature conditions and improves the detection effect of the flow switch body.

[0016] (3) The flow switch quality testing device, by moving the pressure plate down to contact the flow switch body, until the flow switch body and the support ring frame are pressed to the bottom, the flow switch body can be heated by the operation of the heating module, and then by the pressure of the pressure plate, the pressure value of the outer shell of the flow switch body at a certain temperature can be determined, thereby determining whether its explosion-proof effect is qualified. Attached Figure Description

[0017] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Sectional view of the main structure; Figure 3 For the present invention Figure 2 Enlarged main view of the structure at point A; Figure 4 This is a front view of the test pipeline structure of the present invention; Figure 5 This is a front view of the cross-sectional structure of the support ring frame of the present invention; Figure 6 For the present invention Figure 5 Enlarged main view of the structure at point B; Figure 7 This is a front view of the cross-sectional structure of the heating cover of the present invention; Figure 8 This is a front view of the cross-sectional structure of the sealing assembly of the present invention.

[0018] In the diagram: 1. Body; 101. Partition; 2. Sealing door; 201. Viewing window; 3. Hydraulic cylinder; 301. Pressure plate; 4. Circulating water tank; 401. Micro pump; 402. Micro tube; 5. Test pipeline; 501. Test pump body; 502. T-connector; 6. Heating cover; 601. Heating module; 7. Arc frame; 701. Cooling module; 702. Cooling pipe; 8. Cooling coil; 9. Flow switch body ; 901, Assembly end; 9011, Flow probe; 902, Wiring terminal; 10, Support ring frame; 1001, Sleeve rod; 1002, Inner slide rod; 1003, Spring body; 1004, Protective gasket; 11, Threaded connecting pipe; 12, Sealing plate; 1201, Elastic rubber ring; 1202, Air outlet; 1203, Pad plate; 1204, Air inlet pipe; 13, Pressurized pump body; 1301, Pressurized pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-8 The present invention provides three technical solutions, specifically including the following embodiments:

[0021] Example 1 A flow switch quality testing device includes a body 1. A sealing door 2 is rotatably mounted on the outside of the body 1, and a viewing window 201 is fixed inside the sealing door 2. A flow switch body 9 is located inside the body 1, and a support assembly is provided at the bottom of the flow switch body 9. A partition 101 is fixed inside the body 1, and a test pipeline 5 is fixed inside the partition 101. A test pump body 501 is located inside the test pipeline 5. A circulating water tank 4 is fixed on the outside of the body 1 and is connected to the test pipeline 5. A tee pipe 502 is fixed on the top surface of the test pipeline 5, and a connecting sealing assembly is provided at the end of the tee pipe 502. The connecting sealing assembly includes a threaded connecting pipe 11, which is fixed above the test pipeline 5 through the tee pipe 502. A sealing plate 1 is fixed on the top surface of the threaded connecting pipe 11. 2. An elastic rubber ring 1201 is fixed on the top surface of the sealing plate 12. The elastic rubber ring 1201 and the sealing plate 12 are hollow rings and maintain a seal. An air outlet 1202 is opened inside the elastic rubber ring 1201. A pad 1203 is fixed on the top surface of the sealing plate 12. The pad 1203 is installed inside the elastic rubber ring 1201 and the sealing plate 12. An air inlet pipe 1204 is fixed inside the pad 1203. A pressurizing pump body 13 is fixed inside the machine body 1. A pressurizing pipe 1301 is fixed at the end of the pressurizing pump body 13. The end of the pressurizing pipe 1301 is fixedly connected to the air inlet pipe 1204. A heating detection component is provided on the top surface of the flow switch body 9. The pressurizing pump body 13 is an existing device. The pressure value is set and then the inflation operation is performed to test the sealing performance. In this embodiment of the invention, the heating detection component includes a heating cover 6, a hydraulic cylinder 3 is fixed on the inner top surface of the body 1 and a pressure plate 301 is fixed at the end of the hydraulic cylinder 3, the heating cover 6 is fixed at the end of the hydraulic cylinder 3, the pressure plate 301 is located inside the heating cover 6, and a heating module 601 is fixed inside the heating cover 6. The heating module 601 is an existing heating coil. In this embodiment of the invention, an assembly end 901 is fixed at the bottom of the flow switch body 9, and a flow probe 9011 is fixed inside the assembly end 901. The end of the flow probe 9011 extends out of the assembly end 901. A wiring end 902 is fixed on the side of the flow switch body 9, and a wire is provided inside the wiring end 902. In this embodiment of the invention, the threaded connecting pipe 11 and the sealing plate 12 are always kept coaxial, and the inner side of the elastic rubber ring 1201 is an annular surface. In this embodiment of the invention, the support assembly includes a support ring frame 10. A sleeve rod 1001 is fixed to the bottom of the support ring frame 10, and an inner slide rod 1002 is slidably installed inside the sleeve rod 1001. The inner slide rods 1002 are respectively fixed to the top surface of the partition plate 101. A spring body 1003 is fixedly installed between the end of the inner slide rod 1002 and the corresponding sleeve rod 1001. A protective gasket 1004 is fixedly installed on the top surface of the support ring frame 10. The installation position of the support ring frame 10 is always flush with the horizontal plane.

[0022] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0023] During operation, first open the sealing door 2, then place the flow switch body 9 to be tested inside the support ring frame 10, and connect the wire inside the terminal 902 to the power supply. After placement, close the sealing door 2, and then activate the hydraulic cylinder 3, which will cause the end pressure plate 301 and heating cover 6 to move downwards until the pressure plate 301 contacts the top surface of the flow switch body 9. As the pressure plate 301 presses down, the flow switch body 9 moves downwards, and at the same time, the support ring frame 10 slides downwards, causing the sleeve rod 1001 and inner slide rod 1002 to be compressed and extended, squeezing the spring body 1003. Simultaneously, when the flow switch... When the main body 9 moves down, the flow probe 9011 at the end can be inserted into the threaded connecting pipe 11 until the assembly end 901 contacts the sealing plate 12 at the end of the threaded connecting pipe 11 and then stops. Then, the flow switch main body 9 is tested by opening the test pump body 501 in the test pipeline 5. During the test, the flow switch main body 9 can be heated by the operation of the heating module 601. As the temperature rises during the heating process, the value of the flow switch main body 9 is recorded, which makes it easier to judge the accuracy of the flow switch main body 9 under different temperature conditions and improves the detection effect of the flow switch main body 9. In this embodiment of the invention, when the assembly end 901 moves down to contact the sealing plate 12, it can squeeze the elastic rubber ring 1201, causing the inner side of the elastic rubber ring 1201 to deform and completely fit the outer side of the flow probe 9011, until the elastic rubber ring 1201 is pressed down to contact the pad 1203. Through the deformation of the inner side of the elastic rubber ring 1201, it can fill the end of the threaded connecting pipe 11, effectively improving the sealing effect of the threaded connecting pipe 11. At the same time, during the test, through the operation of the pressurizing pump body 13, the pressurizing pipe 1301 and the air inlet pipe 1204 can pressurize the elastic rubber ring 1201. Air can enter the connection between the assembly end 901 and the flow probe 9011 through the pad 1203 and the air outlet 1202, thereby realizing the sealing performance test of the connection between the assembly end 901 and the flow probe 9011, avoiding dust and other substances from entering the flow switch body 9 due to insufficient sealing, thus improving the detection effect and convenience of the equipment.

[0024] In this embodiment of the invention, the pressure plate 301 moves down and contacts the flow switch body 9 until the flow switch body 9 and the support ring frame 10 are pressed to the bottom. Then, the operation of the heating module 601 can heat the flow switch body 9, and the pressure resistance of the shell of the flow switch body 9 at a certain temperature can be determined, thereby determining whether its explosion-proof effect is qualified. In this embodiment of the invention, when the heating cover 6 moves downward, it can drive the arc-shaped frame 7 to move downward at the same time. The downward movement of the arc-shaped frame 7 can move to the position of the wiring terminal 902 of the flow switch body 9. As the arc-shaped frame 7 descends, it can separate the flow switch body 9 from the wiring terminal 902. When the wires inside the wiring terminal 902 are connected, when the heating module 601 heats the flow switch body 9, the arc-shaped frame 7 can help prevent the temperature from being too high and affecting the conductivity.

[0025] Example 2 A flow switch quality testing device includes a body 1. A sealing door 2 is rotatably mounted on the outside of the body 1, and a viewing window 201 is fixed inside the sealing door 2. A flow switch body 9 is located inside the body 1, and a support assembly is provided at the bottom of the flow switch body 9. A partition 101 is fixed inside the body 1, and a test pipeline 5 is fixed inside the partition 101. A test pump body 501 is located inside the test pipeline 5. A circulating water tank 4 is fixed on the outside of the body 1 and is connected to the test pipeline 5. A tee pipe 502 is fixed on the top surface of the test pipeline 5, and a connecting sealing assembly is provided at the end of the tee pipe 502. The connecting sealing assembly includes a threaded connecting pipe 11, which is fixed above the test pipeline 5 through the tee pipe 502. A sealing plate 1 is fixed on the top surface of the threaded connecting pipe 11. 2. An elastic rubber ring 1201 is fixed on the top surface of the sealing plate 12. The elastic rubber ring 1201 and the sealing plate 12 are hollow rings and maintain a seal. An air outlet 1202 is opened inside the elastic rubber ring 1201. A pad 1203 is fixed on the top surface of the sealing plate 12. The pad 1203 is installed inside the elastic rubber ring 1201 and the sealing plate 12. An air inlet pipe 1204 is fixed inside the pad 1203. A pressurizing pump body 13 is fixed inside the machine body 1. A pressurizing pipe 1301 is fixed at the end of the pressurizing pump body 13. The end of the pressurizing pipe 1301 is fixedly connected to the air inlet pipe 1204. A heating detection component is provided on the top surface of the flow switch body 9. The pressurizing pump body 13 is an existing device. The pressure value is set and then the inflation operation is performed to test the sealing performance. In this embodiment of the invention, the heating detection component includes a heating cover 6, a hydraulic cylinder 3 is fixed on the inner top surface of the body 1 and a pressure plate 301 is fixed at the end of the hydraulic cylinder 3, the heating cover 6 is fixed at the end of the hydraulic cylinder 3, the pressure plate 301 is located inside the heating cover 6, a heating module 601 is fixed inside the heating cover 6, the heating module 601 is an existing heating coil, and a cooling component is provided above the heating cover 6. In this embodiment of the invention, the cooling assembly includes a cooling coil 8, which is fixed inside the body 1 and above the heating cover 6. Both ends of the cooling coil 8 are equipped with micro tubes 402. A circulating water tank 4 is fixed on the outside of the body 1, and a micro pump 401 that is connected to each other is fixed on the outside of the circulating water tank 4. The two micro tubes 402 are respectively fixedly connected to the outlet end of the micro pump 401 and the top surface of the circulating water tank 4. An arc-shaped frame 7 is provided on one side of the inside of the heating cover 6. In this embodiment of the invention, an assembly end 901 is fixed at the bottom of the flow switch body 9, and a flow probe 9011 is fixed inside the assembly end 901. The end of the flow probe 9011 extends out of the assembly end 901. A wiring end 902 is fixed on the side of the flow switch body 9, and a wire is provided inside the wiring end 902. In this embodiment of the invention, the threaded connecting pipe 11 and the sealing plate 12 are always kept coaxial, and the inner side of the elastic rubber ring 1201 is an annular surface. In this embodiment of the invention, the support assembly includes a support ring frame 10. A sleeve rod 1001 is fixed to the bottom of the support ring frame 10, and an inner slide rod 1002 is slidably installed inside the sleeve rod 1001. The inner slide rods 1002 are respectively fixed to the top surface of the partition plate 101. A spring body 1003 is fixedly installed between the end of the inner slide rod 1002 and the corresponding sleeve rod 1001. A protective gasket 1004 is fixedly installed on the top surface of the support ring frame 10. The installation position of the support ring frame 10 is always flush with the horizontal plane.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] During operation, first open the sealing door 2, then place the flow switch body 9 to be tested inside the support ring frame 10, and connect the wire inside the terminal 902 to the power supply. After placement, close the sealing door 2, and then activate the hydraulic cylinder 3, which will cause the end pressure plate 301 and heating cover 6 to move downwards until the pressure plate 301 contacts the top surface of the flow switch body 9. As the pressure plate 301 presses down, the flow switch body 9 moves downwards, and at the same time, the support ring frame 10 slides downwards, causing the sleeve rod 1001 and inner slide rod 1002 to be compressed and extended, squeezing the spring body 1003. Simultaneously, when the flow switch... When the main body 9 moves down, the flow probe 9011 at the end can be inserted into the threaded connecting pipe 11 until the assembly end 901 contacts the sealing plate 12 at the end of the threaded connecting pipe 11 and then stops. Then, the flow switch main body 9 is tested by opening the test pump body 501 in the test pipeline 5. During the test, the flow switch main body 9 can be heated by the operation of the heating module 601. As the temperature rises during the heating process, the value of the flow switch main body 9 is recorded, which makes it easier to judge the accuracy of the flow switch main body 9 under different temperature conditions and improves the detection effect of the flow switch main body 9. In this embodiment of the invention, when the assembly end 901 moves down to contact the sealing plate 12, it can squeeze the elastic rubber ring 1201, causing the inner side of the elastic rubber ring 1201 to deform and completely fit the outer side of the flow probe 9011, until the elastic rubber ring 1201 is pressed down to contact the pad 1203. Through the deformation of the inner side of the elastic rubber ring 1201, it can fill the end of the threaded connecting pipe 11, effectively improving the sealing effect of the threaded connecting pipe 11. At the same time, during the test, through the operation of the pressurizing pump body 13, the pressurizing pipe 1301 and the air inlet pipe 1204 can pressurize the elastic rubber ring 1201. Air can enter the connection between the assembly end 901 and the flow probe 9011 through the pad 1203 and the air outlet 1202, thereby realizing the sealing performance test of the connection between the assembly end 901 and the flow probe 9011, avoiding dust and other substances from entering the flow switch body 9 due to insufficient sealing, thus improving the detection effect and convenience of the equipment.

[0028] In this embodiment of the invention, the pressure plate 301 moves down and contacts the flow switch body 9 until the flow switch body 9 and the support ring frame 10 are pressed to the bottom. Then, the operation of the heating module 601 can heat the flow switch body 9, and the pressure resistance of the shell of the flow switch body 9 at a certain temperature can be determined, thereby determining whether its explosion-proof effect is qualified. In this embodiment of the invention, when the heating cover 6 moves down, it can drive the arc frame 7 to move down at the same time. The arc frame 7 can move to the terminal 902 of the flow switch body 9. As the arc frame 7 descends, it can separate the flow switch body 9 from the terminal 902. When the wires inside the terminal 902 are connected, when the heating module 601 heats the flow switch body 9, the arc frame 7 can help prevent the temperature from being too high and affecting the conductivity. When the test is completed, the end of the hydraulic cylinder 3 drives the heating cover 6 to move up and reset. The micro pump 401 and the micro tube 402 can be used to pump the circulating water from the circulating water tank 4 into the cooling coil 8 to circulate and cool the inside of the machine body 1. Then the sealing door 2 is opened to take out the flow switch body 9 after the test is completed.

[0029] Example 3 Based on Embodiment 2, a cooling module 701 is fixed inside the arc-shaped frame 7. Cooling pipes 702 are fixed at both ends of the outer side of the cooling module 701. The ends of the two cooling pipes 702 are respectively connected to two micro pipes 402. When the circulating water circulates through the two micro pipes 402 on both sides, it can enter the cooling module 701 through the cooling pipes 702 for circulation, thereby cooling the arc-shaped frame 7 and improving the heat insulation effect of the arc-shaped frame 7 and the protection effect of the wiring terminal 902.

[0030] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A flow switch quality detection device, comprising a body (1), wherein a sealing door (2) is rotatably mounted on the outer side of the body (1) and a viewing window (201) is fixed inside the sealing door (2), characterized in that: The machine body (1) is provided with a flow switch body (9) inside. The bottom of the flow switch body (9) is provided with a support component. The machine body (1) is fixed with a partition (101) inside. The partition (101) is fixed with a test pipeline (5) inside. The test pipeline (5) is provided with a test pump body (501) inside. The machine body (1) is fixed with a circulating water tank (4) outside. The circulating water tank (4) is connected to the test pipeline (5). The top surface of the test pipeline (5) is fixed with a three-way pipe (502), and the end of the three-way pipe (502) is provided with a connecting sealing component. The connecting sealing assembly includes a threaded connecting pipe (11), which is fixed above the test pipeline (5) via a tee pipe (502). A sealing plate (12) is fixed to the top surface of the threaded connecting pipe (11), and an elastic rubber ring (1201) is fixed to the top surface of the sealing plate (12). The elastic rubber ring (1201) and the sealing plate (12) are in the shape of a hollow ring and maintain a seal. An air vent (1202) is provided inside the elastic rubber ring (1201). The sealing plate (1201) is... 2) The top surface is fixed with a pad (1203). The pad (1203) is installed inside the elastic rubber ring (1201) and the sealing plate (12). An air inlet pipe (1204) is fixed inside the pad (1203). A pressurizing pump body (13) is fixed inside the body (1). A pressurizing pipe (1301) is fixed at the end of the pressurizing pump body (13). The end of the pressurizing pipe (1301) is fixedly connected to the air inlet pipe (1204). A heating detection component is provided on the top surface of the flow switch body (9). A hydraulic cylinder (3) is fixed on the inner top surface of the machine body (1), and a pressure plate (301) is fixed at the end of the hydraulic cylinder (3). The support assembly includes a support ring frame (10), the bottom of which is fixed with a sleeve rod (1001), and an inner slide rod (1002) is slidably installed inside the sleeve rod (1001). The inner slide rod (1002) is fixed to the top surface of the partition plate (101), and a spring body (1003) is fixedly installed between the end of the inner slide rod (1002) and the corresponding sleeve rod (1001). The top surface of the support ring frame (10) is fixedly equipped with a protective pad (1004), and the installation position of the support ring frame (10) is always flush with the horizontal plane.

2. The flow switch quality detection device according to claim 1, characterized in that: The heating detection assembly includes a heating cover (6), which is fixed to the end of the hydraulic cylinder (3). The pressure plate (301) is located inside the heating cover (6). A heating module (601) is fixed inside the heating cover (6). A cooling assembly is provided above the heating cover (6).

3. The flow switch quality detection device according to claim 2, characterized in that: The cooling assembly includes a cooling coil (8), which is fixed inside the body (1) and above the heating cover (6). Both ends of the cooling coil (8) are equipped with micro tubes (402). A circulating water tank (4) is fixed on the outside of the body (1), and a micro pump (401) is fixed on the outside of the circulating water tank (4). The two sections of the micro tubes (402) are respectively fixed to the outlet of the micro pump (401) and the top surface of the circulating water tank (4). A protective assembly is provided on one side of the inside of the heating cover (6).

4. The flow switch quality detection device according to claim 3, characterized in that: The protective assembly includes an arc frame (7), which is fixed inside the heating cover (6). A cooling module (701) is fixed inside the arc frame (7), and cooling pipes (702) are fixed at both ends of the outer side of the cooling module (701). The ends of the two cooling pipes (702) are respectively connected to two micro tubes (402).

5. The flow switch quality detection device according to claim 4, characterized in that: The bottom of the arc-shaped frame (7) is provided with an arc-shaped opening, and the opening is located at the center of the bottom of the arc-shaped frame (7).

6. The flow switch quality detection device according to claim 4, characterized in that: The cooling module (701) is interconnected with two microtubes (402) through the cooperation of two cooling pipes (702).

7. The flow switch quality detection device according to claim 1, characterized in that: The flow switch body (9) has an assembly end (901) fixed at the bottom, and a flow probe (9011) is fixed inside the assembly end (901). The end of the flow probe (9011) extends out of the assembly end (901). A wiring terminal (902) is fixed on the side of the flow switch body (9), and a wire is provided inside the wiring terminal (902).

8. The flow switch quality detection device according to claim 1, characterized in that: The threaded connecting pipe (11) and the sealing plate (12) always remain coaxial, and the inner side of the elastic rubber ring (1201) is annular.

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