Thin film water pressure resistance test fixture

Abstract

The utility model relates to the technical field of thin film water pressure resistance testing, and discloses a thin film water pressure resistance testing jig which comprises a base, a supporting frame is fixedly installed on the upper surface of the base, a water cavity is formed in the base, one end of a fixing pipe is communicated with the interior of the water cavity, a control valve is movably installed in the fixing pipe, and the control valve is connected with the water cavity. A water pressure applying structure is arranged above the base, a through hole is formed in the upper surface of the supporting frame, and a testing structure is arranged on the upper surface of the supporting frame. According to the thin film water pressure resistance test fixture, through the arrangement of a sealing structure and a water pressure pressing structure, when a hydraulic cylinder drives a fixing cover and a T-shaped sealing ring to move downwards through a hydraulic rod to extrude and fix a thin film body on a sealing piece, the T-shaped sealing ring can be pressed downwards through the elastic force of a resisting spring; therefore, the sealing performance of the testing device can be effectively ensured, and the accuracy of testing results is improved.

Description

Technical Field

[0001] This utility model relates to the field of thin film water pressure resistance testing technology, specifically a thin film water pressure resistance testing fixture. Background Technology

[0002] Thin films are thin, soft, transparent or translucent materials with wide applications and important roles in many fields such as modern industry and daily life. Water pressure resistance is a crucial indicator in the production and application of film materials. For example, in fields such as waterproof and breathable membranes and building films, accurately testing the water pressure resistance of films is essential for evaluating their quality and suitability.

[0003] Existing methods and devices for testing the water pressure resistance of thin films suffer from water leakage at the seals during use, making it impossible to accurately test the water pressure resistance of the film. The sealing of the testing device is also difficult to guarantee, resulting in inaccurate test results. Therefore, we propose a new fixture for testing the water pressure resistance of thin films to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a thin film water pressure resistance testing fixture, which solves the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a thin film water pressure resistance test fixture, including a base, a support frame fixedly installed on the upper surface of the base, a water cavity opened inside the base, one end of the fixed tube communicating with the inside of the water cavity, a control valve movably installed inside the fixed tube, a water pressure applying structure provided above the base, a through hole opened on the upper surface of the support frame, and a test structure provided on the upper surface of the support frame;

[0006] The water pressure applying structure is used to apply water pressure to the thin film sample, and the test structure is used to perform water pressure testing on the thin film sample on the water pressure applying structure.

[0007] Furthermore, the water pressure applying structure includes a fixed cylinder, a sealing element, a diaphragm body, a flow guide ring groove, a drain pipe, a water outlet pipe, a one-way valve, a water pump, and a water inlet pipe. The bottom end of the fixed cylinder is fixedly installed on the upper surface of the base, and the top end of the fixed cylinder is fixedly connected to the sealing element. The diaphragm body is placed on the upper surface of the sealing element above the fixed cylinder. A flow guide ring groove is formed at the bottom of the inner wall of the fixed cylinder. The interior of the fixed cylinder is fixedly connected to the drain pipe through the flow guide ring groove. The center of the interior of the fixed cylinder is fixedly connected to the water outlet pipe. A one-way valve is movably installed inside the water outlet pipe. The bottom end of the water outlet pipe is connected to the water outlet end of the water pump, and the water inlet end of the water pump is fixedly connected to the water inlet pipe.

[0008] By adopting the above technical solution, the PLC controller starts the water pump and check valve, and the water in the water chamber enters the interior of the fixed cylinder through the inlet pipe, water pump and outlet pipe, applying water pressure to the membrane body on the fixed cylinder.

[0009] Furthermore, the test structure includes a hydraulic cylinder, a hydraulic rod, a sealing assembly, and a pressure sensor. The hydraulic cylinder is fixedly mounted on the upper surface of the support frame. The hydraulic rod is movably connected inside the hydraulic cylinder. The bottom end of the hydraulic rod passes through the interior of a through hole. A sealing assembly is provided at the bottom end of the hydraulic rod. A pressure sensor is fixedly mounted at the bottom end of the hydraulic rod.

[0010] By adopting the above technical solution, the pressure sensor detects the water pressure on the membrane body in real time and transmits the pressure signal to the display device. The display device displays the pressure value in real time. As the water pressure gradually increases, the state of the membrane body is observed. When the membrane sample cracks or leaks water, the pressure value at this time is recorded, which is the water pressure resistance value of the membrane body.

[0011] Furthermore, the sealing assembly includes a fixed cover, rectangular holes, a limiting groove, a T-shaped sealing ring, and a resistance spring. The top end of the fixed cover is fixedly connected to the bottom end of the hydraulic rod. The outer wall of the fixed cover has several rectangular holes arranged in a ring. The bottom end of the fixed cover has a limiting groove. The bottom of the fixed cover is movably connected to the T-shaped sealing ring within the limiting groove. The top of the inner wall of the limiting groove has several resistance springs arranged in a ring, and the bottom end of each resistance spring is fixedly connected to the top end of the T-shaped sealing ring.

[0012] Furthermore, a PLC controller is fixedly installed on the front outer wall of the support frame, and the control valve, water pump and check valve are electrically connected to the PLC controller respectively. The hydraulic cylinder and pressure sensor are electrically connected to the PLC controller respectively, and a display device is fixedly installed on the outer wall of the support frame.

[0013] Furthermore, there are two drain pipes, the bottom end of which extends into the interior of the water cavity. The water pump is located inside the water cavity and is electrically connected to a PLC controller. The inlet pipe is located inside the water cavity, and the bottom end of the outlet pipe extends into the interior of the water cavity.

[0014] The beneficial effects of this utility model are:

[0015] 1. This membrane water pressure resistance test fixture, through the setting of a sealing structure and a water pressure application structure, when the hydraulic cylinder drives the fixing cover and T-shaped sealing ring to move downward through the hydraulic rod to squeeze and fix the membrane body on the sealing element, the T-shaped sealing ring will resist downward by resisting the elastic force of the spring itself. This can effectively ensure the sealing performance of the test device and improve the accuracy of the test results.

[0016] 2. This membrane water pressure resistance testing fixture, through the water pressure application structure, allows water inside the fixed cylinder to flow into the water chamber through the guide ring groove and drain pipe when water pressure is applied to the membrane body via the outlet pipe. This achieves water circulation, saves water resources, and reduces energy waste. Simultaneously, the testing structure enables real-time and accurate detection of the water pressure exerted on the membrane body, which is displayed in real-time by a display device, facilitating data recording and analysis by testing personnel. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 3 This is a partial cross-sectional view of the water pressure application structure of this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support frame; 3. PLC controller; 4. Water chamber; 5. Fixed pipe; 6. Control valve; 7. Water pressure application structure; 71. Fixed cylinder; 72. Seal; 73. Diaphragm body; 74. Guide ring groove; 75. Drain pipe; 76. Water outlet pipe; 77. One-way valve; 78. Water pump; 79. Water inlet pipe; 8. Through hole; 9. Test structure; 91. Hydraulic cylinder; 92. Hydraulic rod; 93. Sealing assembly; 931. Fixed cover; 932. Rectangular hole; 933. Limiting groove; 934. T-shaped sealing ring; 935. Resistance spring; 94. Pressure sensor; 10. Display device. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-4A thin film water pressure resistance test fixture includes a base, a support frame 2 fixedly installed on the upper surface of the base 1, a water cavity 4 opened inside the base 1, one end of a fixed tube 5 connected to the inside of the water cavity 4, a control valve 6 movably installed inside the fixed tube 5, a water pressure applying structure 7 provided above the base 1, a through hole 8 opened on the upper surface of the support frame 2, and a test structure 9 provided on the upper surface of the support frame 2.

[0025] The water pressure applying structure 7 is used to apply water pressure to the film sample, and the test structure 9 is used to perform water pressure tests on the film sample on the water pressure applying structure 7. Through the water pressure applying structure 7, when the water outlet pipe 76 applies water pressure to the film body 73, the water inside the fixed cylinder 71 flows into the water chamber 4 through the guide ring groove 74 and the drain pipe 75, thus achieving water circulation, saving water resources, and reducing energy waste. Simultaneously, through the test structure 9, the water pressure borne by the film body 73 can be accurately detected in real time and displayed in real time through the display device 10, facilitating data recording and analysis by testing personnel.

[0026] Reference Figure 1-3 As shown, the water pressure applying structure 7 includes a fixed cylinder 71, a sealing element 72, a diaphragm body 73, a flow guide ring groove 74, a drain pipe 75, a water outlet pipe 76, a one-way valve 77, a water pump 78, and a water inlet pipe 79. The bottom end of the fixed cylinder 71 is fixedly installed on the upper surface of the base 1, and the top end of the fixed cylinder 71 is fixedly connected to the sealing element 72. The diaphragm body 73 is placed on the upper surface of the sealing element 72 above the fixed cylinder 71. A flow guide ring groove 74 is formed at the bottom of the inner wall of the fixed cylinder 71, and the interior of the fixed cylinder 71 is fixed through the flow guide ring groove 74. A drain pipe 75 is connected to the fixed cylinder 71, and an outlet pipe 76 is fixedly connected to the center of the fixed cylinder 71. A one-way valve 77 is movably installed inside the outlet pipe 76. The bottom end of the outlet pipe 76 is connected to the outlet end of the water pump 78, and the inlet end of the water pump 78 is fixedly connected to the inlet pipe 79. By adopting the above technical solution, the PLC controller 3 starts the water pump 78 and the one-way valve 77. The water in the water chamber 4 enters the interior of the fixed cylinder 71 through the inlet pipe 79, the water pump 78 and the outlet pipe 76, and applies water pressure to the membrane body 73 on the fixed cylinder 71.

[0027] Reference Figure 1 , 2As shown in Figure 4, the test structure 9 includes a hydraulic cylinder 91, a hydraulic rod 92, a sealing component 93, and a pressure sensor 94. The hydraulic cylinder 91 is fixedly installed on the upper surface of the support frame 2. The hydraulic rod 92 is movably connected inside the hydraulic cylinder 91. The bottom end of the hydraulic rod 92 passes through the interior of the through hole 8. The sealing component 93 is provided at the bottom end of the hydraulic rod 92. The pressure sensor 94 is fixedly installed at the bottom end of the hydraulic rod 92. By adopting the above technical solution, the pressure sensor 94 detects the water pressure borne by the membrane body 73 in real time and transmits the pressure signal to the display device 10. The display device 10 displays the pressure value in real time. As the water pressure gradually increases, the state of the membrane body 73 is observed. When the membrane sample cracks or leaks water, the pressure value at this time is recorded, which is the water pressure resistance value of the membrane body 73.

[0028] In this application, the hydraulic cylinder 91 is a single-piston hydraulic cylinder, that is, the inlet and outlet of the hydraulic cylinder 91 are respectively connected to one side of the external liquid reversing valve through pressure oil pipes, and the other side of the external liquid reversing valve is connected to the inlet and outlet of the hydraulic pump through pressure oil pipes, thereby controlling the output end of the hydraulic cylinder 91 to move up and down.

[0029] Reference Figure 1 , 2 As shown in Figure 4, the sealing assembly 93 includes a fixed cover 931, rectangular holes 932, a limiting groove 933, a T-shaped sealing ring 934, and a resistance spring 935. The top end of the fixed cover 931 is fixedly connected to the bottom end of the hydraulic rod 92. Several rectangular holes 932 are arranged in a ring on the outer wall of the fixed cover 931. A limiting groove 933 is opened at the bottom end of the fixed cover 931. The bottom of the fixed cover 931 is movably connected to the T-shaped sealing ring 934 within the limiting groove 933. Several resistance springs 935 are fixedly connected to the top of the inner wall of the limiting groove 933. The bottom end of the resistance spring 935 is fixedly connected to the top end of the T-shaped sealing ring 934. Through the setting of the sealing structure 93 and the water pressure application structure 7, when the hydraulic cylinder 91 drives the fixed cover 931 and the T-shaped sealing ring 934 to move downward through the hydraulic rod 92 to squeeze and fix the film body 73 on the sealing element 72, the T-shaped sealing ring 934 will resist downward through the elastic force of the resistance spring 935 itself. This can effectively ensure the sealing of the test device and improve the accuracy of the test results.

[0030] Reference Figure 1 , 2As shown, a PLC controller 3 is fixedly installed on the front outer wall of the support frame 2. The control valve 6, water pump 78 and check valve 77 are electrically connected to the PLC controller 3. The hydraulic cylinder 91 and pressure sensor 94 are electrically connected to the PLC controller 3. A display device 10 is fixedly installed on the outer wall of the support frame 2.

[0031] The output module of PLC controller 3 sends control signals to the control circuit of water pump 78, thereby realizing the start, stop, speed adjustment and other operations of water pump 78.

[0032] Reference Figure 1-3 As shown, there are two drain pipes 75, the bottom end of which extends into the interior of the water chamber 4. The water pump 78 is located inside the water chamber 4 and is electrically connected to the PLC controller 3. The inlet pipe 79 is located inside the water chamber 4, and the bottom end of the outlet pipe 76 extends into the interior of the water chamber 4.

[0033] In this application, it should be noted that the outlet end of the water pump 78 is connected to the outlet pipe 76, and the input end of the water pump 78 is connected to the inlet pipe 79, which is used to drive the water flow. The water pump 78 is connected to the external power supply control equipment through the wiring harness, and the water pump 78 is a conventional component directly referenced, so it will not be described again.

[0034] In use, the diaphragm body 73 is placed on the sealing element 72 at the top of the fixed cylinder 71. Then, the hydraulic cylinder 91 is activated by the PLC controller 3. The hydraulic cylinder 91 drives the sealing assembly 93 and the pressure sensor 94 downward through the hydraulic rod 92. This causes the fixing cover 931 inside the sealing assembly 93 to push and fix the diaphragm body 73 on the sealing element 72 at the top of the fixed cylinder 71 with the T-shaped sealing ring 934. This presses the T-shaped sealing ring 934 tightly against the diaphragm body 73 on the sealing element 72, achieving a sealed connection. At the same time, the bottom of the pressure sensor 94 contacts the upper surface of the diaphragm body 73. Then, the PLC controller 3 starts the water pump 78 and the one-way valve 77. The water in the water chamber 4 enters the interior of the fixed cylinder 71 through the water inlet pipe 79, the water pump 78 and the water outlet pipe 76, applying water pressure to the membrane body 73 on the fixed cylinder 71. At the same time, the pressure sensor 94 detects the water pressure borne by the membrane body 73 in real time and transmits the pressure signal to the display device 10. The display device 10 displays the pressure value in real time. As the water pressure gradually increases, the state of the membrane body 73 is observed. When the membrane sample cracks or leaks water, the pressure value at this time is recorded, which is the water pressure resistance value of the membrane body 73.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thin film water pressure test fixture comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly installed with a support frame (2), the base (1) is internally provided with a water cavity (4), one end of a fixed pipe (5) is communicated with the inside of the water cavity (4), a control valve (6) is movably installed in the inside of the fixed pipe (5), the upper surface of the base (1) is provided with a water pressure pressing structure (7), the upper surface of the support frame (2) is provided with a through hole (8), and the upper surface of the support frame (2) is provided with a test structure (9). The water pressure pressing structure (7) is used for applying water pressure to the film sample, and the test structure (9) is used for water pressure test on the film sample on the water pressure pressing structure (7).

2. The film water pressure test fixture of claim 1, wherein: The water pressure pressing structure (7) comprises a fixed cylinder (71), a sealing element (72), a film body (73), a flow guide ring groove (74), a drain pipe (75), a water outlet pipe (76), a one-way valve (77), a water pump (78) and a water inlet pipe (79), the bottom end of the fixed cylinder (71) is fixedly installed on the upper surface of the base (1), the top end of the fixed cylinder (71) is fixedly connected with the sealing element (72), the film body (73) is placed on the upper surface of the sealing element (72) above the fixed cylinder (71), the flow guide ring groove (74) is formed in the bottom of the inner wall of the fixed cylinder (71), the drain pipe (75) is fixedly communicated in the fixed cylinder (71) through the flow guide ring groove (74), the water outlet pipe (76) is fixedly communicated in the inner center of the fixed cylinder (71), the one-way valve (77) is movably installed in the inside of the water outlet pipe (76), the bottom end of the water outlet pipe (76) is communicated with the water outlet end of the water pump (78), and the water inlet pipe (79) is fixedly communicated with the water inlet end of the water pump (78).

3. The film water pressure test fixture of claim 2, wherein: The test structure (9) comprises a hydraulic cylinder (91), a hydraulic rod (92), a sealing assembly (93) and a pressure sensor (94), the hydraulic cylinder (91) is fixedly installed on the upper surface of the support frame (2), the hydraulic rod (92) is movably connected in the inside of the hydraulic cylinder (91), the bottom end of the hydraulic rod (92) penetrates through the inside of the through hole (8), the sealing assembly (93) is arranged on the bottom end of the hydraulic rod (92), and the pressure sensor (94) is fixedly installed on the bottom end of the hydraulic rod (92).

4. The film water pressure test fixture of claim 3, wherein: The sealing assembly (93) comprises a fixed cover (931), a rectangular hole (932), a limiting groove (933), a T-shaped sealing ring (934) and a resisting spring (935), the top end of the fixed cover (931) is fixedly connected to the bottom end of the hydraulic rod (92), a plurality of rectangular holes (932) are annularly arranged on the outer wall of the fixed cover (931), the limiting groove (933) is formed in the bottom end of the fixed cover (931), the T-shaped sealing ring (934) is movably connected in the limiting groove (933) at the bottom of the fixed cover (931), a plurality of resisting springs (935) are annularly arranged on the top of the inner wall of the limiting groove (933), and the bottom end of the resisting spring (935) is fixedly connected to the top end of the T-shaped sealing ring (934).

5. The film water pressure test fixture of claim 4, wherein: The front side outer wall of the support frame (2) is fixedly installed with a PLC controller (3), the control valve (6), the water pump (78) and the check valve (77) are respectively electrically connected with the PLC controller (3), the hydraulic cylinder (91) and the pressure sensor (94) are respectively electrically connected with the PLC controller (3), and the outer wall of the support frame (2) is fixedly installed with a display device (10).

6. The film water pressure test fixture of claim 5, wherein: The number of the drain pipes (75) is two, the bottom end of the drain pipe (75) extends to the inside of the water cavity (4), the water pump (78) is located in the inside of the water cavity (4), the water pump (78) is electrically connected with the PLC controller (3), the water inlet pipe (79) is located in the inside of the water cavity (4), and the bottom end of the water outlet pipe (76) extends to the inside of the water cavity (4).

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