Central pipe collapse testing device

Abstract

The utility model provides a central pipe collapse testing device. The center pipe collapse testing device comprises a supporting plate, a supporting frame is fixedly installed on the supporting plate, a testing tank is fixedly installed on the supporting plate, an adjusting mechanism is arranged in the testing tank, and a sealing mechanism is arranged on the supporting frame; the adjusting mechanism comprises an adjusting screw rod I, the adjusting screw rod I is rotationally mounted in the testing tank, and a hand wheel is fixedly mounted at the top end of the adjusting screw rod I. The central tube collapse testing device provided by the utility model is provided with the adjusting mechanism, so that the central tubes with different lengths and thicknesses are positioned in the positioning cylinder on the adjusting plate, and the mounting adaptability of collapse testing of the central tubes with different lengths and thicknesses is improved; by arranging the sealing mechanism, an opening in the top end of the testing tank can be quickly sealed and unsealed, the operation is simple and convenient, and the collapse testing efficiency of multiple batches of different central pipes is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of central tube testing, and in particular relates to a central tube collapse testing device. Background Art

[0002] The filter element used in the liquid filter is usually composed of filter paper, a center tube and upper and lower cover parts. The center tube plays the role of supporting the filter paper to prevent the filter paper from collapsing and being damaged during use, which affects the use of the liquid filter. Therefore, the center tube needs to be tested for collapse.

[0003] Publication No. CN209784068U discloses a central tube collapse test device comprising a tank assembly and a sealed upper cover assembly. A central tube specimen is placed within the tank assembly. Liquid is injected into the tank assembly, and the device, in conjunction with a pressure measuring element, performs a collapse test on the central tube specimen. The device is characterized by a locking unit within the tank assembly that adjustably secures the central tube specimen within the tank assembly. Compared to existing technologies, this device is suitable for central tubes of various sizes and specifications, and features a simple structure, ease of use, and cost-effectiveness.

[0004] However, there are still some shortcomings in the above structure. The top opening of the above-mentioned tank assembly is sealed by the upper cover assembly, and the sealing installation needs to be fixed by multiple nuts. Therefore, it is time-consuming to disassemble and install the nuts, and the operation is not convenient, which affects the efficiency of the collapse test of multiple batches of central tube installations.

[0005] Therefore, it is necessary to provide a new central tube collapse testing device to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a central tube collapse testing device which can test the tank opening for rapid sealing and disassembly and adapt to central tubes of different lengths and thicknesses.

[0007] In order to solve the above technical problems, the central tube collapse test device provided by the present invention comprises: a support plate, a support frame is fixedly mounted on the support plate, a test tank is fixedly mounted on the support plate, an adjustment mechanism is provided in the test tank, and a sealing mechanism is provided on the support frame;

[0008] The adjustment mechanism includes an adjusting screw 1, which is rotatably installed in the test tank, a handwheel is fixedly installed on the top of the adjusting screw 1, an adjusting plate is threadedly installed on the adjusting screw 1, and a plurality of positioning cylinders are fixedly installed on the adjusting plate, and the plurality of positioning cylinders are distributed around the adjusting plate;

[0009] The sealing mechanism includes a sealing cover, which is arranged above the test tank. A pressure gauge is fixedly installed on the sealing cover. Two threaded tubes are fixedly installed on the sealing cover. Two adjusting screws 2 are rotatably installed on the support frame. One end of the adjusting screw 2 extends into the threaded tube and is threadedly connected to the threaded tube. A gear 1 is fixedly installed on the top of the adjusting screw 2. A servo motor is fixedly installed on the support frame. A gear 2 is fixedly installed on the output end of the servo motor, and the gear 2 is meshed with the gear 1.

[0010] As a further solution of the present invention, a drain pipe is fixedly connected to the bottom of the test tank, and one end of the drain pipe passes through the support plate and is fixedly installed with a switch valve.

[0011] As a further solution of the present invention, two limiting rods are fixedly installed in the test tank, and the limiting rods pass through the adjustment plate and are slidably connected to the adjustment plate.

[0012] As a further solution of the present invention, a pressure test pump is fixedly installed on the support plate, and the output end of the pressure test pump is fixedly connected to a water pipe. One end of the water pipe passes through the support frame and is fixedly connected to the test tank.

[0013] As a further solution of the present invention, an exhaust pipe is fixedly connected to the sealing cover, and a second switch valve is fixedly installed on the exhaust pipe.

[0014] As a further solution of the present invention, a sealing gasket is fixedly mounted on the sealing cover, an annular groove is formed on the top of the test tank, and the sealing gasket is adapted to the annular groove.

[0015] Compared with related technologies, the central tube collapse testing device provided by the present invention has the following beneficial effects:

[0016] 1. The utility model is provided with an adjustment mechanism, so that the center tubes of different lengths and thicknesses can be positioned in the positioning cylinder on the adjustment plate, thereby improving the adaptability of the collapse test installation for center tubes of different lengths and thicknesses;

[0017] 2. The utility model is provided with a sealing mechanism, so that the top opening of the test tank can be quickly sealed and unsealed, which is simple and convenient to operate and improves the efficiency of collapse testing of multiple batches of different central tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of the central tube collapse testing device provided by the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a test tank of the central tube collapse test device provided by the present invention;

[0021] Figure 3 This is a schematic diagram of the sealing cover and sealing gasket structure of the central tube collapse testing device provided by the utility model.

[0022] In the figure: 1. Support plate; 101. Support frame; 2. Test tank; 201. Drain pipe; 202. On-off valve 1; 3. Adjusting screw 1; 301. Handwheel; 302. Adjusting plate; 303. Positioning cylinder; 304. Limit rod; 4. Sealing cover; 401. Pressure gauge; 402. Threaded pipe; 403. Adjusting screw 2; 404. Gear 1; 405. Servo motor; 406. Gear 2; 5. Pressure test pump; 501. Water pipe; 6. Exhaust pipe; 601. On-off valve 2; 7. Sealing gasket. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 、 Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the three-dimensional structure of the central tube collapse testing device of the utility model; Figure 2 A schematic diagram of the internal structure of a test tank of the central tube collapse test device provided by the present invention; Figure 3 This is a schematic diagram of the sealing cover and sealing gasket structure of the central tube collapse test device provided by the present invention. The central tube collapse test device comprises: a support plate 1, a support frame 101 fixedly mounted on the support plate 1, a test tank 2 fixedly mounted on the support plate 1, an adjustment mechanism provided within the test tank 2, and a sealing mechanism provided on the support frame 101;

[0024] The adjustment mechanism includes an adjustment screw 3, which is rotatably installed in the test tank 2. A handwheel 301 is fixedly installed on the top of the adjustment screw 3. An adjustment plate 302 is threadedly installed on the adjustment screw 3. A plurality of positioning cylinders 303 are fixedly installed on the adjustment plate 302. The plurality of positioning cylinders 303 are distributed around the adjustment plate 302.

[0025] The sealing mechanism includes a sealing cover 4, which is arranged above the test tank 2. A pressure gauge 401 is fixedly installed on the sealing cover 4. Two threaded tubes 402 are fixedly installed on the sealing cover 4. Two adjusting screws 403 are rotatably installed on the support frame 101. One end of the adjusting screw 403 extends into the threaded tube 402 and is threadedly connected to the threaded tube 402. A gear 1 404 is fixedly installed on the top of the adjusting screw 403. A servo motor 405 is fixedly installed on the support frame 101. A gear 2 406 is fixedly installed on the output end of the servo motor 405. The gear 2 406 is meshed with the gear 1 404.

[0026] like Figure 1 As shown, a drain pipe 201 is fixedly connected to the bottom of the test tank 2, and one end of the drain pipe 201 passes through the support plate 1 and is fixedly installed with a switch valve 202;

[0027] By opening the switch valve 1 202, the water inside the test tank 2 is drained away through the drain pipe 201. The drained water can be recycled, thus reducing the waste of water resources.

[0028] like Figure 2 As shown, two limiting rods 304 are fixedly installed in the test tank 2, and the limiting rods 304 pass through the adjustment plate 302 and are slidably connected to the adjustment plate 302;

[0029] When the adjusting plate 302 is driven to move up and down, the adjusting plate 302 can be rotated during the process of moving up and down by sliding on the limiting rod 304 through the circular hole inside the adjusting plate 302 .

[0030] like Figure 1 As shown, a pressure test pump 5 is fixedly installed on the support plate 1, and the output end of the pressure test pump 5 is fixedly connected to a water pipe 501, one end of the water pipe 501 passes through the support frame 101 and is fixedly connected to the test tank 2;

[0031] After the pressure test pump 5 is running, water can be transported to the test tank 2 through the water pipe 501, so as to perform the central tube collapse test.

[0032] like Figure 1 and Figure 3 As shown, the sealing cover 4 is fixedly connected to an exhaust pipe 6, and a second switch valve 601 is fixedly installed on the exhaust pipe 6;

[0033] By opening the second on-off valve 601 and then connecting the exhaust pipe 6 to the interior of the test tank 2, when water is then poured into the test tank 2, the air inside the test tank 2 can be blown away from the exhaust pipe 6. After the air inside the test tank 2 is exhausted and water flows out of the exhaust pipe 6, the second on-off valve 601 is closed.

[0034] like Figure 1 and Figure 3 As shown, a sealing gasket 7 is fixedly mounted on the sealing cover 4, and an annular groove is provided on the top of the test tank 2, and the sealing gasket 7 is adapted to the annular groove;

[0035] By providing the sealing gasket 7, when the sealing cover 4 covers the top of the test tank 2, the sealing gasket 7 can be squeezed into the annular groove to form a sealing effect, so that the pressure of the central tube can be kept stable during the collapse test.

[0036] The working principle of the central tube collapse test device provided by the utility model is as follows:

[0037] Step 1: During the test, first rotate the hand wheel 301 by hand. The hand wheel 301 drives the adjusting screw 3 to rotate spirally, which can drive the adjusting plate 302 to rise and fall, and then drive the adjusting plate 302 to rise and fall. Then, plug the two ends of the central tube with sealing plugs, and then insert one end of the central tube into the positioning cylinder 303 to keep it in a vertical state.

[0038] Step 2: The servo motor 405 is powered on to drive the second gear 406 to rotate, and then the two gears 1 404 meshing with the second gear 406 are driven to rotate synchronously. Then, the first gear 404 drives the second adjusting screw 403 to rotate spirally, so that the second adjusting screw 403 can drive the threaded tube 402 to move up and down. Then, the threaded tube 402 drives the sealing cover 4 to cover the top of the test tank 2 and seal it. At the same time, the bottom of the sealing cover 4 presses against the top of the central tube, so that the central tube is positioned and kept stable.

[0039] Step 3: Open the second on-off valve 601 to connect the exhaust pipe 6 to the interior of the test tank 2. Then, operate the pressure test pump 5 to inject water into the test tank 2 through the water pipe 501. When water is injected into the test tank 2, the air inside the test tank 2 can be discharged outward through the exhaust pipe 6. After the test tank 2 is filled with water, close the second on-off valve 601. Then, slowly inject water into the test tank 2 to increase the pressure. Observe the pressure change inside the test tank 2 through the pressure gauge 401. When the central tube inside the test tank 2 cannot support the pressure inside the test tank 2, the surface of the central tube will collapse and be squeezed. Then, the pressure displayed on the pressure gauge 401 will instantly decrease, thereby measuring the maximum pressure value of the central tube's anti-collapse ability.

[0040] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art can clearly understand the details of its power mechanism, power supply system, and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art.

[0041] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments or applied directly or indirectly without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A central tube collapse testing device, characterized in that: include: A support plate, a support frame is fixedly mounted on the support plate, a test tank is fixedly mounted on the support plate, an adjustment mechanism is provided in the test tank, and a sealing mechanism is provided on the support frame; The adjustment mechanism includes an adjusting screw 1, which is rotatably installed in the test tank, a handwheel is fixedly installed on the top of the adjusting screw 1, an adjusting plate is threadedly installed on the adjusting screw 1, and a plurality of positioning cylinders are fixedly installed on the adjusting plate, and the plurality of positioning cylinders are distributed around the adjusting plate; The sealing mechanism includes a sealing cover, which is arranged above the test tank. A pressure gauge is fixedly installed on the sealing cover. Two threaded tubes are fixedly installed on the sealing cover. Two adjusting screws 2 are rotatably installed on the support frame. One end of the adjusting screw 2 extends into the threaded tube and is threadedly connected to the threaded tube. A gear 1 is fixedly installed on the top of the adjusting screw 2. A servo motor is fixedly installed on the support frame. A gear 2 is fixedly installed on the output end of the servo motor, and the gear 2 is meshed with the gear 1.

2. The central tube collapse testing device according to claim 1, characterized in that: A drain pipe is fixedly connected to the bottom of the test tank, and one end of the drain pipe passes through the support plate and is fixedly installed with a switch valve 1.

3. The central tube collapse testing device according to claim 1, characterized in that: Two limiting rods are fixedly installed in the test tank, and the limiting rods pass through the adjustment plate and are slidably connected to the adjustment plate.

4. The central tube collapse testing device according to claim 1, characterized in that: A pressure test pump is fixedly installed on the support plate, an output end of the pressure test pump is fixedly connected to a water pipe, one end of the water pipe passes through the support frame and is fixedly connected to the test tank.

5. The central tube collapse testing device according to claim 1, characterized in that: The sealing cover is fixedly connected with an exhaust pipe, and the exhaust pipe is fixedly installed with a second switch valve.

6. The central tube collapse testing device according to claim 1, characterized in that: A sealing gasket is fixedly mounted on the sealing cover, an annular groove is formed on the top of the test tank, and the sealing gasket is adapted to the annular groove.

Images