A testing device for environmental protection equipment parts

Abstract

The present invention provides a testing device for environmental protection equipment parts, which relates to the technical field of testing devices, and includes: a three-way pipe fitting; the interfaces at the left and right ends of the three-way pipe fitting are connected to a drive box and a water inlet pipe fitting through a connecting assembly, and the water outlet on the left side of the drive box is connected to a water outlet pipe fitting; the upper end interface of the three-way pipe fitting is fixedly connected to a cylindrical part. Through the setting of the connecting assembly, when the internal thread of the threaded barrel is stripped, only one corresponding connecting assembly needs to be replaced, thereby reducing the cost of pressure testing of water pipe parts, and through the cooperation of the driving box and the heat dissipation assembly, the heat dissipation efficiency of the pressure sensor body is improved, and the problem that once the threaded connection structure at both ends of the traditional pressure testing device is stripped, the entire device needs to be replaced, thereby increasing the cost of the test, and although the traditional pressure testing device is provided with a heat sink on the outside, the heat dissipation efficiency needs to be improved.

Description

Technical Field

[0001] The invention relates to the technical field of testing devices, and in particular to a testing device for environmental protection equipment parts. Background Art

[0002] When treating sewage, water treatment and environmental protection equipment is usually used. When processing the water pipe parts on the water treatment and environmental protection equipment, in order to ensure the quality of the water pipe parts, pressure tests are generally carried out before the water pipe parts leave the factory. When conducting pressure tests, pressure testing devices are used.

[0003] However, when using a traditional pressure testing device, it is generally directly connected between two water pipe parts through a thread, and then water is passed through the two water pipes to measure the pressure. When a large number of water pipe parts need to be tested, the threaded connection structures at both ends of the pressure testing device need to be frequently connected to the water pipe parts. As a result, after long-term use, the threaded connection structures at both ends of the pressure testing device will cause thread slippage. Once thread slippage occurs, the entire pressure testing device needs to be replaced, thereby increasing the cost of pressure testing water pipe parts. In addition, during the long-term testing process, the electronic components inside the traditional pressure testing device will generate heat. Although some pressure testing devices are provided with heat sinks on the outside, heat is only dissipated through the heat sink, so that the heat dissipation efficiency of the pressure testing device needs to be improved. Summary of the invention

[0004] In view of this, the present invention provides a testing device for environmental protection equipment parts. Through the setting of a connecting component, when the internal threads of the threaded barrel are stripped after long-term use, only a corresponding connecting component needs to be replaced, thereby greatly reducing the cost of pressure testing of water pipe parts, and through the cooperation of the drive box and the heat dissipation component, the heat dissipation efficiency of the pressure sensor body is improved.

[0005] The present invention provides a testing device for parts of environmental protection equipment, which specifically includes: a three-way pipe fitting; the left and right end interfaces of the three-way pipe fitting are connected to a drive box and a water inlet pipe fitting through a connecting assembly, and the water outlet on the left side of the drive box is connected to a water outlet pipe fitting; the upper end interface of the three-way pipe fitting is fixedly connected to a cylindrical part, and a pressure sensor body is installed on the upper end of the cylindrical part; a heat dissipation assembly is installed on the upper rear side of the three-way pipe fitting, and a supporting part is provided at the bottom of the three-way pipe fitting, a height fine-adjustment mechanism is provided at the bottom of the supporting part, and a limit assembly is provided on the supporting part; the outer sides of the opposite ends of the water inlet pipe fitting and the water outlet pipe fitting are both provided with threads.

[0006] Optionally, an annular groove is formed on the inner peripheral surface of the cylindrical member, and four strip-shaped sliding grooves are formed in an annular array on the inner side of the annular groove. A circular sliding block is slidably connected to the inside of the annular groove through the four strip-shaped sliding grooves. An annular sealing rubber ring is provided on the bottom end surface of the circular sliding block. Four strip-shaped rubber sliders are provided on the outer peripheral surface of the annular sealing rubber ring in an annular array, and the four rubber sliders are slidably connected to the four strip-shaped sliding grooves on the inner side of the annular groove. A pressing column is fixedly connected to the center of the upper end surface of the circular sliding block.

[0007] Optionally, the connection assembly includes a connecting cylinder, a threaded cylinder, a sealing rubber ring, and an auxiliary rotating rod. A flange is provided at one end of the connecting cylinder, and the connecting cylinders in the two connection assemblies are respectively connected to the right water inlet of the three-way pipe fitting and the left water outlet of the drive box through the flanges. A sealing rubber ring is provided at the other end of the connecting cylinder, and a threaded cylinder is rotatably connected to the outside of the other end of the connecting cylinder. Threads are provided inside the threaded cylinder, and anti-slip stripes are provided in an annular array on one side of the outer peripheral surface of the threaded cylinder. Two auxiliary rotating rods are welded to the outer peripheral surface of the threaded cylinder in an annular array. The threaded cylinders in the two connection assemblies are respectively connected to the water outlet of the water inlet pipe fitting and the water inlet of the water outlet pipe fitting through the threads.

[0008] Optionally, a display screen is provided on the front side of the upper part of the pressure sensor body, and a power supply connector is provided on the top of the pressure sensor body. First heat dissipation fins are uniformly provided on the rear side of the upper part of the pressure sensor body, and the first heat dissipation fins are in a "C" - shaped structure. Annular heat dissipation fins are uniformly provided on the outer side of the lower part of the pressure sensor body. A detection head is provided at the lower end of the pressure sensor body, and the lower end of the detection head is in close contact with the upper end of the pressing column.

[0009] Optionally, a drive rotating shaft is rotatably connected inside the drive box, and an impeller is fixedly connected to the outside of the drive rotating shaft, and the impeller is located on the upper side inside the drive box. The front and rear ends of the drive rotating shaft respectively penetrate through the front and rear side walls of the drive box, and a driving belt pulley is fixedly connected to the rear end of the drive rotating shaft.

[0010] Optionally, the heat dissipation assembly includes a blowing cover, a rotating shaft, and heat dissipation fan blades. A rotating shaft is rotatably connected inside the rear cylinder of the blowing cover, and heat dissipation fan blades are fixedly connected to the front end of the rotating shaft. A driven belt pulley is fixedly connected to the rear end of the rotating shaft, and the driven belt pulley is传动连接 to the driving belt pulley through a belt, and the diameter of the driven belt pulley is one - third of the diameter of the driving belt pulley. Blowing holes are uniformly formed on the front end surface of the blowing cover.

[0011] Optionally, the supporting part includes a supporting plate, a sliding column, a square sliding cylinder and a limiting sliding column. The upper surface of the supporting plate is symmetrically welded with two sliding columns, and the upper end of each sliding column is slidably connected to a square sliding cylinder. The upper ends of the two square sliding cylinders are welded to the bottom of the three-way pipe fitting, and the front end surface of each square sliding cylinder is provided with a strip-shaped through-hole; the front end surface of each sliding column is evenly provided with an adjustment socket, and a limiting sliding column is welded to the upper part of the front end surface of each sliding column, and the two limiting sliding columns are slidably connected to the strip through-holes on the two square sliding cylinders respectively.

[0012] Optionally, the limit assembly includes a limit slide, a sliding block, a pulling rod, a limit plug rod and a synchronous pulling rod. The number of the limit slides is two, and the two limit slides are respectively fixedly connected to the lower part of the front end surface of the two square slides; each of the limit slides is slidably connected to a sliding block, and a pulling rod passing through the front end of each sliding block is provided at the front end of the limit slide, each pulling rod is sleeved with a spring located inside the limit slide, and the front ends of the two pulling rods are fixedly connected with a synchronous pulling rod; the rear end of each sliding block is provided with a limit plug rod passing through the rear part of the limit slide.

[0013] Optionally, the height fine-adjustment mechanism includes a base plate, an adjustment stud and a guide rod, the adjustment stud is rotatably connected to the rear side of the upper end surface of the base plate, and the adjustment stud is connected to the rear side of the support plate by a thread; a guide rod is welded at the four corners of the upper end surface of the base plate, and the four guide rods respectively pass through the four corners of the support plate.

[0014] Optionally, when the limiting assembly is in the limiting state, the rear ends of the two limiting rods are respectively plugged into the adjustment holes provided on the two sliding columns.

[0015] Beneficial Effects

[0016] According to the test device of each embodiment of the present invention, compared with the traditional test device, it has the setting of the connecting component. When the internal thread of the threaded barrel is stripped after long-term use, it is only necessary to replace a corresponding connecting component. When replacing, the bolts on the flange at one end of the connecting barrel are loosened and removed, and then the connecting component can be removed from the water inlet at the right end of the three-way pipe fitting or the water outlet at the left end of the drive box, so there is no need to replace the entire test device, thereby greatly reducing the cost of pressure testing water pipe parts.

[0017] In addition, through the cooperation between the drive box and the heat dissipation assembly, when water flows through the inside of the drive box, the water flows to drive the impeller to rotate, so that the driving shaft drives the active pulley to rotate, and then the active pulley drives the driven pulley to rotate through the belt, so that the rotating shaft drives the heat dissipation fan blades to rotate, so that the outside air enters the inside of the blow hood, and then through the blowing holes on the blow hood, the air is blown to the first heat sink and the annular heat sink, so that the heat on the first heat sink and the annular heat sink can be quickly dissipated, thereby improving the heat dissipation efficiency of the pressure sensor body, and the structure is simple, and there is no need to separately equip the motor to drive the heat dissipation fan blades, thereby reducing costs and saving electricity loss.

[0018] In addition, through the setting of the support part, when the test device is connected to the water inlet pipe and the water outlet pipe, the height of the test device can be adjusted by adjusting the support height of the support part. When adjusting, first step your foot on the front side of the upper end of the base plate, and then manually pull the synchronization rod forward to make the two pull rods, two sliding blocks and two limit rods move forward at the same time, so that the two limit rods are pulled out from the adjustment sockets on the two sliding columns, and then the synchronization rod is moved up and down to drive the two square slides and the three-way pipe fitting to move up and down, so that the connection height of the test device can be quickly adjusted, and there is no need to use a threaded structure during adjustment, which greatly improves the convenience of the test device when adjusting the height.

[0019] In addition, through the setting of the height fine-adjustment mechanism, when the height of the test device needs to be further accurately adjusted, it is only necessary to adjust the support part and then manually turn the adjustment stud to allow the support plate to drive the sliding column, square slide cylinder and three-way pipe fitting to move slightly up and down under the action of the thread, thereby making the test device more accurate when aligning with the water inlet and outlet pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture:

[0023] Figure 1 A schematic diagram showing a front axial view of a test device according to an embodiment of the present invention is shown;

[0024] Figure 2 A schematic diagram showing a rear axial view of a test device according to an embodiment of the present invention is shown;

[0025] Figure 3A schematic diagram showing a test device in a disassembled state according to an embodiment of the present invention is shown;

[0026] Figure 4 A schematic diagram showing a partial cross-section of a cylinder according to an embodiment of the present invention is shown;

[0027] Figure 5 A schematic diagram showing the disassembly of a cylinder and a circular sliding block according to an embodiment of the present invention;

[0028] Figure 6 A schematic diagram showing a split connection component according to an embodiment of the present invention is shown;

[0029] Figure 7 A schematic diagram showing a pressure sensor body, a first heat sink and an annular heat sink after being disassembled according to an embodiment of the present invention is shown;

[0030] Figure 8 A schematic diagram showing a partial cross-section of a drive box according to an embodiment of the present invention is shown;

[0031] Fig. 9 A schematic diagram of a position limiting assembly according to an embodiment of the present invention is shown;

[0032] Fig.10 A schematic diagram showing a height fine-adjustment mechanism and a support portion according to an embodiment of the present invention is shown.

[0033] Reference numerals list

[0034] 1. Three-way pipe fitting; 101. Cylinder; 102. Circular sliding block; 103. Top pressure column; 104. Annular sealing rubber ring; 105. Annular groove; 2. Water inlet pipe fitting; 3. Water outlet pipe fitting; 4. Connecting assembly; 401. Connecting cylinder; 402. Threaded cylinder; 403. Sealing rubber ring; 404. Auxiliary rotating rod; 5. Pressure sensor body; 501. Display screen; 502. Power supply connector; 503. First heat sink; 504. Annular heat sink; 505. Detection head; 6. Drive box; 601 , driving shaft; 602, impeller; 7, heat dissipation assembly; 701, blow hood; 702, rotating shaft; 703, heat dissipation fan blades; 8, height fine-tuning mechanism; 801, base plate; 802, adjusting stud; 803, guide rod; 9, limit assembly; 901, limit slide; 902, sliding block; 903, pulling rod; 904, limit plug rod; 905, synchronous pull rod; 10, supporting part; 1001, supporting plate; 1002, sliding column; 1003, square slide; 1004, limit slide. DETAILED DESCRIPTION

[0035] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0036] Example: Please refer to Figures 1 to 10 :

[0037] The present invention proposes a testing device for environmental protection equipment parts, comprising: a three-way pipe fitting 1; the left and right end interfaces of the three-way pipe fitting 1 are connected to a drive box 6 and a water inlet pipe fitting 2 through a connecting assembly 4, and the left water outlet of the drive box 6 is connected to a water outlet pipe fitting 3; the upper end interface of the three-way pipe fitting 1 is fixedly connected to a cylindrical part 101, and a pressure sensor body 5 is installed on the upper end of the cylindrical part 101; a heat dissipation assembly 7 is installed on the upper rear side of the three-way pipe fitting 1, and a support part 10 is provided at the bottom of the three-way pipe fitting 1, a height fine-adjustment mechanism 8 is provided at the bottom of the support part 10, and a limit assembly 9 is provided on the support part 10; the outer sides of the opposite ends of the water inlet pipe fitting 2 and the water outlet pipe fitting 3 are both provided with threads for connecting with the connecting assembly 4.

[0038] In addition, according to an embodiment of the present invention, Figure 3-Figure 5 As shown, an annular groove 105 is provided on the inner circumference of the cylindrical member 101, and four strip-shaped slide grooves are provided in an annular array inside the annular groove 105, and a circular sliding block 102 is slidably connected inside the annular groove 105 through the four strip-shaped slide grooves, and an annular sealing rubber ring 104 is provided on the bottom end surface of the circular sliding block 102, and four strip-shaped rubber sliders are provided on the outer circumference of the annular sealing rubber ring 104 in an annular array, and the four rubber sliders are slidably connected to the four strip-shaped slide grooves inside the annular groove 105; a top pressure column 103 is fixedly connected to the center of the upper end surface of the circular sliding block 102, which is used to press the lower end of the detection head 505;

[0039] like Figure 1 and Figure 6As shown, the connecting component 4 includes a connecting cylinder 401, a threaded cylinder 402, a sealing rubber ring 403 and an auxiliary rotating rod 404. One end of the connecting cylinder 401 is provided with a flange, and the connecting cylinders 401 in the two connecting components 4 are respectively connected to the water inlet on the right end of the tee fitting 1 and the water outlet on the left end of the drive box 6 through the flanges; a sealing rubber ring 403 is provided at the other end of the connecting cylinder 401, and a threaded cylinder 402 is rotatably connected to the outside of the other end of the connecting cylinder 401. The threaded cylinder 402 is internally threaded, and anti-slip stripes are annularly arranged on one side of the outer peripheral surface of the threaded cylinder 402. Two auxiliary rotating rods 404 are welded to the outer peripheral surface of the threaded cylinder 402 in an annular array; the threaded cylinders 402 in the two connecting components 4 are respectively connected to the water outlet of the water inlet pipe fitting 2 and the water inlet of the water outlet pipe fitting 3 through the threads. Through the setting of the connecting component 4, when the threads inside the threaded cylinder 402 are stripped after long-term use, only one corresponding connecting component 4 needs to be replaced, thus greatly reducing the cost during the pressure test of the water pipe parts;

[0040] As Figure 4 and Figure 7 As shown, a display screen 501 is provided on the front side of the upper part of the pressure sensor main body 5, and a power supply connector 502 is provided on the top of the pressure sensor main body 5; first heat dissipation fins 503 are evenly arranged on the rear side of the upper part of the pressure sensor main body 5, and the first heat dissipation fins 503 are in a "C" - shaped structure. Annular heat dissipation fins 504 are evenly arranged on the outer side of the lower part of the pressure sensor main body 5. A detection head 505 is provided at the lower end of the pressure sensor main body 5, and the lower end of the detection head 505 is in close contact with the upper end of the top pressure column 103, so that the pressure sensor main body 5 can detect the water pressure;

[0041] As Figure 2 and Figure 8 As shown, a drive shaft 601 is rotatably connected inside the drive box 6, and an impeller 602 is fixedly connected to the outside of the drive shaft 601, and the impeller 602 is located on the upper side inside the drive box 6; the front and rear ends of the drive shaft 601 respectively penetrate through the front and rear side walls of the drive box 6, and a driving belt pulley is fixedly connected to the rear end of the drive shaft 601. Through the setting of the impeller 602, the cooling fan blades 703 do not need to be equipped with an additional motor when rotating, thus reducing the cost and saving electric energy;

[0042] As Figure 2 and Figure 8As shown, the heat dissipation component 7 includes a blowing hood 701, a rotating shaft 702 and a heat dissipation fan blade 703. The rotating shaft 702 is rotatably connected in the cylinder at the rear side of the blowing hood 701, and the heat dissipation fan blade 703 is fixedly connected to the front end of the rotating shaft 702; a driven pulley is fixedly connected to the rear end of the rotating shaft 702, and the driven pulley is connected to the driving pulley through a belt, and the diameter of the driven pulley is one third of the diameter of the driving pulley; the front end surface of the blowing hood 701 is uniformly provided with blowing holes, and through the arrangement of the heat dissipation component 7, the heat on the first heat sink 503 and the annular heat sink 504 can be quickly dissipated;

[0043] like Figure 1 and Fig.10 As shown, the support part 10 includes a support plate 1001, a sliding column 1002, a square slide cylinder 1003 and a limit slide cylinder 1004. The upper end surface of the support plate 1001 is welded with two sliding columns 1002 in a left-right symmetrical shape, and each sliding column 1002 is slidably connected to a square slide cylinder 1003 at the outer upper end, and the upper ends of the two square slide cylinders 1003 are welded to the bottom of the three-way pipe fitting 1, and the front end surface of each square slide cylinder 1003 is provided with a strip opening; the front end surface of each sliding column 1002 is evenly provided with an adjustment jack, and a limit slide cylinder 1004 is welded to the upper part of the front end surface of each sliding column 1002, and the two limit slide cylinders 1004 are respectively slidably connected to the strip openings on the two square slide cylinders 1003, and the height of the test device can be adjusted through the setting of the support part 10;

[0044] like Figure 1 and Fig. 9 As shown, the limiting assembly 9 includes a limiting slide 901, a sliding block 902, a pulling rod 903, a limiting plug rod 904 and a synchronous pulling rod 905. The number of limiting slides 901 is two, and the two limiting slides 901 are respectively fixedly connected to the lower part of the front end surface of the two square slides 1003; each limiting slide 901 is slidably connected to a sliding block 902, and each sliding block 902 is provided with a pulling rod 903 that passes through the front part of the limiting slide 901 at the front end, and each pulling rod 903 is sleeved inside the limiting slide 901 A spring is connected, and the front ends of the two pull rods 903 are fixedly connected with a synchronous pull rod 905; the rear end of each sliding block 902 is provided with a limit rod 904 that penetrates the rear part of the limit slide cylinder 901, and is used to limit the support part 10 after the height is adjusted through the setting of the limit assembly 9; when the limit assembly 9 is in the limit state, the rear ends of the two limit rods 904 are respectively plugged into the adjustment sockets opened on the two sliding columns 1002, so that the two sliding columns 1002 are effectively limited inside the two square slide cylinders 1003;

[0045] like Figure 2 and Fig.10As shown, the height fine-adjustment mechanism 8 includes a base plate 801, an adjusting stud 802 and a guide rod 803. The rear side of the upper end surface of the base plate 801 is rotatably connected with the adjusting stud 802, and the adjusting stud 802 is connected to the rear side of the support plate 1001 by a thread; a guide rod 803 is welded at the four corners of the upper end surface of the base plate 801, and the four guide rods 803 respectively pass through the four corners of the support plate 1001. Through the setting of the height fine-adjustment mechanism 8, the test device can be more accurately aligned with the water inlet pipe 2 and the water outlet pipe 3.

[0046] Specific usage and function of this embodiment: In the present invention, during installation, firstly, the test device is installed between the water inlet pipe fitting 2 and the water outlet pipe fitting 3 through two connecting components 4. During installation, it is only necessary to tighten the threaded barrel 402 in the two connecting components 4 to the water outlet of the water inlet pipe fitting 2 and the water inlet of the water outlet pipe fitting 3 through threads; then the test is started. During the test, the pressurized water flows through the water inlet pipe fitting 2 to the inside of the three-way pipe fitting 1 and the cylindrical member 101, and then flows through the drive box 6 to the inside of the water outlet pipe fitting 3, and then the circular sliding block 102 is pressed upward under the water pressure, so that the upper end of the pressing column 103 presses the lower end of the detection head 505, and then the upward pressing force of the pressing column 103 is detected through the pressure sensor body 5, so that the water pressure can be detected. When the water pressure reaches the standard, if the water inlet pipe fitting 2 and the water outlet pipe fitting 3 can be used normally under this water pressure, the quality of the water inlet pipe fitting 2 and the water outlet pipe fitting 3 can be tested;

[0047] When water flows through the driving box 6, the impeller 602 is driven by the water flow to rotate, so that the driving shaft 601 drives the active pulley to rotate, and then the active pulley drives the driven pulley to rotate through the belt, so that the rotating shaft 702 drives the heat dissipation fan blades 703 to rotate, so that the external air enters the inside of the blowing hood 701, and then passes through the blowing holes on the blowing hood 701 to blow the air to the first heat sink 503 and the annular heat sink 504, so that the heat on the first heat sink 503 and the annular heat sink 504 can be quickly dissipated.

[0048] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0049] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A testing device for environmental protection equipment parts, characterized in that: Including: A three-way pipe fitting (1); both left and right ends of the three-way pipe fitting (1) are connected with a drive box (6) and a water inlet pipe fitting (2) through connection components (4), and the left water outlet of the drive box (6) is connected with a water outlet pipe fitting (3); the connection component (4) includes a connection cylinder (401), a threaded cylinder (402), a sealing rubber ring (403) and an auxiliary rotating rod (404), one end of the connection cylinder (401) is provided with a flange, and the connection cylinders (401) in the two connection components (4) are respectively connected with the right water inlet of the three-way pipe fitting (1) and the left water outlet of the drive box (6) through the flanges; a sealing rubber ring (403) is arranged at the other end of the connection cylinder (401), and the threaded cylinder (402) is rotatably connected to the outside of the other end of the connection cylinder (401). The threaded cylinder (402) is internally threaded, and anti-slip stripes are arranged in an annular array on one side of the outer peripheral surface of the threaded cylinder (402). Two auxiliary rotating rods (404) are welded on the outer peripheral surface of the threaded cylinder (402) in an annular array; the threaded cylinders (402) in the two connection components (4) are respectively connected with the water outlet of the water inlet pipe fitting (2) and the water inlet of the water outlet pipe fitting (3) through threads; the upper interface of the three-way pipe fitting (1) is fixedly connected with a cylindrical part (101), and a pressure sensor body (5) is installed on the upper end of the cylindrical part (101); a heat dissipation component (7) is installed on the upper part at the rear side of the three-way pipe fitting (1), and a support part (10) is arranged at the bottom of the three-way pipe fitting (1). A height fine adjustment mechanism (8) is arranged at the bottom of the support part (10), and a limiting component (9) is arranged on the support part (10); threads are arranged on the outer parts of the opposite ends of the water inlet pipe fitting (2) and the water outlet pipe fitting (3); An annular groove (105) is formed on the inner peripheral surface of the cylindrical part (101), and four strip-shaped sliding grooves are formed in an annular array on the inner side of the annular groove (105). A circular sliding block (102) is slidably connected to the annular groove (105) through the four strip-shaped sliding grooves. An annular sealing rubber ring (104) is arranged on the bottom end surface of the circular sliding block (102). Four strip-shaped rubber sliding blocks are arranged in an annular array on the outer peripheral surface of the annular sealing rubber ring (104), and the four rubber sliding blocks are slidably connected to the four strip-shaped sliding grooves on the inner side of the annular groove (105); a top pressure column (103) is fixedly connected to the center of the upper end surface of the circular sliding block (102); a display screen (501) is arranged on the front side of the upper part of the pressure sensor body (5), and a power supply connector (502) is arranged on the top of the pressure sensor body (5); first heat dissipation fins (503) are evenly arranged on the rear side of the upper part of the pressure sensor body (5), and the first heat dissipation fins (503) are in a "C" - shaped structure. Annular heat dissipation fins (504) are evenly arranged on the outer side of the lower part of the pressure sensor body (5). A detection head (505) is arranged at the lower end of the pressure sensor body (5), and the lower end of the detection head (505) is in close contact with the upper end of the top pressure column (103); The driving box (6) is rotatably connected to a driving shaft (601) inside, and the driving shaft (601) is fixedly connected to an impeller (602) outside, and the impeller (602) is located on the upper side of the driving box (6); the front and rear ends of the driving shaft (601) respectively penetrate the front and rear side walls of the driving box (6), and the rear end of the driving shaft (601) is fixedly connected to a driving pulley; The heat dissipation assembly (7) comprises a blowing hood (701), a rotating shaft (702) and a heat dissipation fan blade (703); the rotating shaft (702) is rotatably connected in a cylinder at the rear side of the blowing hood (701), and the heat dissipation fan blade (703) is fixedly connected to the front end of the rotating shaft (702); the rear end of the rotating shaft (702) is fixedly connected to a driven pulley, and the driven pulley is connected to the driving pulley through a belt, and the diameter of the driven pulley is one third of the diameter of the driving pulley; the front end surface of the blowing hood (701) is evenly provided with blowing holes; The support portion (10) comprises a support plate (1001), a sliding column (1002), a square slide cylinder (1003) and a limit slide cylinder (1004); the upper end surface of the support plate (1001) is welded with two sliding columns (1002) in a left-right symmetrical shape, and the outer upper end of each sliding column (1002) is slidably connected to a square slide cylinder (1003); the upper ends of the two square slide cylinders (1003) are welded to the bottom of the three-way pipe fitting (1), and the front end surface of each square slide cylinder (1003) is provided with a strip-shaped opening; the front end surface of each sliding column (1002) is evenly provided with an adjustment socket, and a limit slide cylinder (1004) is welded to the upper part of the front end surface of each sliding column (1002), and the two limit slide cylinders (1004) are slidably connected to the strip-shaped openings on the two square slide cylinders (1003) respectively; The limiting assembly (9) comprises a limiting slide (901), a sliding block (902), a pulling rod (903), a limiting plug rod (904) and a synchronous pulling rod (905). The number of the limiting slides (901) is two, and the two limiting slides (901) are respectively fixedly connected to the lower part of the front end surface of the two square slides (1003); each of the limiting slides (901) is slidably connected to a sliding block (902) inside, and a pulling rod (903) that passes through the front part of the limiting slide (901) is provided at the front end of each sliding block (902). Each pulling rod (903) are sleeved with springs inside the limiting slide (901), and the front ends of the two pulling rods (903) are fixedly connected with synchronous pulling rods (905); the rear end of each sliding block (902) is provided with a limiting plug rod (904) penetrating the rear part of the limiting slide (901); when the limiting assembly (9) is in the limiting state, the rear ends of the two limiting plug rods (904) are respectively plugged into the adjustment plug holes provided on the two sliding columns (1002), so that the two sliding columns (1002) can obtain effective limiting effect inside the two square slides (1003); The height fine-adjustment mechanism (8) comprises a base plate (801), an adjustment stud (802) and a guide rod (803); the rear side of the upper end surface of the base plate (801) is rotatably connected with the adjustment stud (802), and the adjustment stud (802) is connected to the rear side of the support plate (1001) via a thread; a guide rod (803) is welded at each of the four corners of the upper end surface of the base plate (801), and the four guide rods (803) respectively penetrate the four corners of the support plate (1001); The test device is installed between the water inlet pipe (2) and the water outlet pipe (3) through two connecting components (4). During installation, the threaded barrels (402) in the two connecting components (4) only need to be screwed onto the water outlet of the water inlet pipe (2) and the water inlet of the water outlet pipe (3) through threads; then the test is started. During the test, pressurized water flows through the water inlet pipe (2) to the inside of the three-way pipe (1) and the cylindrical component (101), and then flows through the drive box (6) to the inside of the water outlet pipe (3). Then, the circular sliding block (102) is pressed upward under the water pressure, so that the upper end of the pressure column (103) presses against the lower end of the detection head (505). Then, the upward pressure of the pressure column (103) is detected through the pressure sensor body (5), so that the water pressure can be detected. After the water pressure reaches the standard, if the water inlet pipe (2) and the water outlet pipe (3) can be used normally under this water pressure, the quality of the water inlet pipe (2) and the water outlet pipe (3) can be tested; when the water flows through the inside of the driving box (6), the impeller (602) is driven by the water flow to rotate, so that the driving shaft (601) drives the driving pulley to rotate, and then the driving pulley drives the driven pulley to rotate through the belt, so that the rotating shaft (702) drives the heat dissipation fan blade (703) to rotate, so that the external air enters the inside of the blowing cover (701), and then passes through the blowing holes on the blowing cover (701) to be blown onto the first heat sink (503) and the annular heat sink (504), so that the heat on the first heat sink (503) and the annular heat sink (504) can be quickly dissipated.

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