Automatic testing device for one-way valve

Abstract

The utility model relates to the field of one-way valve testing, in particular to an automatic testing device for one-way valves, which comprises a workbench, a detection device is fixedly connected to the left side of the top of the workbench, an inflation device is fixedly connected to the right side of the detection device, and a display screen is embedded in the left side of the detection device. The detection device can accurately measure the pressure change of the one-way valve in the inflation process, and the pressure change is displayed in real time through the display screen, so that the sealing performance of the one-way valve is accurately judged, the inflation device can accurately control the inflation pressure and inflation time, the accuracy and consistency of test conditions are ensured, and the L-shaped block is matched with the adjusting mechanism, so that the sealing performance of the one-way valve is improved. Stable clamping of the one-way valve is achieved, sliding of a guide block in a guide groove ensures stable movement of an L-shaped block, meanwhile, the resilience force of a tension spring accelerates the moving speed of a sleeve block, the clamping efficiency is improved, meanwhile, an electric telescopic rod drives a sealing block to seal the other end of the one-way valve, and the one-way valve is more accurate in the testing process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to one -way valve test technical field, especially relate to a one -way valve automatic testing device. BACKGROUND

[0002] One -way valve is fluid only along the water inlet, the water outlet medium cannot backflow, commonly known as one -way valve, one -way valve is also called check valve or non -return valve, is used to prevent oil flow reverse flow in hydraulic system, or is used to prevent compressed air reverse flow in pneumatic system, one -way valve has straight -through and right angle two kinds, straight -through one -way valve is installed on the pipeline with screw connection, right angle one -way valve has screw connection, plate connection and flange connection three forms.

[0003] Through the retrieval, in the prior art, China patent publication number: CN209069518U, authorized day: 2019-07-05, a kind of one -way valve leak test device for aircraft pipeline belongs to sealing test technical field, including frame, air drum assembly, tank assembly and box assembly;The air drum assembly is installed in the left upper corner of frame by first inner thread stud and first screw, tank assembly is installed on the right side frame of air drum assembly through second inner thread stud and fifth screw;Box assembly is provided on the right side frame of tank assembly;First flat pad is provided between the first inner thread stud and first screw, the utility model drives vacuum generator by compressed nitrogen, vacuumizes to negative pressure tank, tests fuel pipeline leak tightness, not limited by use occasion, small volume and light weight, easy to use and maintain, low maintenance cost;Test is carried out using the device, only need to remove sensor, connect test hose to fuel pipeline, without disassembling pipeline as a whole, small workload, short test time, simple method, avoid frequent disassembly fuel pipeline.

[0004] But the device still has the following defects: although only need to remove sensor, connect test hose to fuel pipeline when testing, without disassembling pipeline as a whole, small workload, short test time, but since one -way valve cannot be fixed, one -way valve is prone to sway or displacement during testing, which will cause inflation equipment to be unable to accurately inflate one -way valve, thereby affecting the accuracy of test result, the one -way valve that sways can also cause the pressure data read by detection equipment to fluctuate greatly, so that test result is difficult to judge, the one -way valve that is not fixed needs to be manually supported or adjusted position by test personnel, which not only increases the labor intensity of test personnel, but also reduces test efficiency. Utility model content

[0005] In view of the above problems, the utility model provides a one -way valve automatic testing arrangement, including work table, the left side fixedly connected with detection equipment of work table top, the right side fixedly connected with inflation equipment of detection equipment, the left side of detection equipment is embedded with display screen, the right side fixedly connected with electric telescopic handle of work table top, the output end transmission connection of electric telescopic handle has sealing block, the front side and the back of work table top all are provided with L shape piece, the bottom fixedly connected with connecting block of L shape piece, the bottom of connecting block is through to the inner chamber of work table, the top of work table inner chamber is provided with adjusting mechanism, the bottom of work table inner chamber is provided with motor, the output end transmission connection of motor has screw rod, the surface screw thread connection of screw rod has screw block.

[0006] Further, the adjusting mechanism includes a long rod fixedly connected to the top of the inner chamber of the workbench, the surface of the long rod is slidably connected with two sleeve blocks, the top of the sleeve block is fixedly connected with the connecting block, the bottom of the long rod is provided with a square plate, the bottom of the square plate is fixedly connected with the screw block, the top of the square plate is provided with two guide grooves, the inner cavity of the guide groove is slidably connected with a guide block, the top of the guide block is fixedly connected with the sleeve block.

[0007] Further, the surface of the long rod is sleeved with a tension spring, both ends of the tension spring are fixedly connected with the sleeve block.

[0008] Further, the surface of the motor is sleeved with a mounting seat, the top of the mounting seat is screw connected with a bolt, the workbench and the motor are detachably connected through the bolt.

[0009] Further, the front side and the back of the inner chamber of the workbench are provided with a sliding groove, the inner cavity of the sliding groove is slidably connected with a sliding block, one side of the sliding block is fixedly connected with the square plate.

[0010] Further, one side of the L-shaped block is fixedly connected with a protective pad, the protective pad is rectangular in shape.

[0011] Further, the bottom of the workbench is fixedly connected with a supporting block at each corner, and the four supporting blocks are symmetrically arranged.

[0012] Further, the top of the detection equipment is provided with a heat dissipation hole on both sides, and the inner cavity of the heat dissipation hole is fixedly connected with a filter screen.

[0013] The utility model has the advantages that:

[0014] 1. The testing equipment in this device can accurately measure the pressure change of the one-way valve during the inflation process and display it in real time on the screen, thereby accurately judging the sealing performance of the one-way valve. The inflation equipment can accurately control the inflation pressure and inflation time to ensure the accuracy and consistency of the test conditions. The L-shaped block, in cooperation with the adjustment mechanism, achieves stable clamping of the one-way valve. The sliding of the guide block in the guide groove ensures the smooth movement of the L-shaped block. At the same time, the rebound force of the tension spring accelerates the movement speed of the sleeve block and improves the clamping efficiency. Meanwhile, the electric telescopic rod drives the sealing block to seal the other end of the one-way valve, making the one-way valve more accurate during the test.

[0015] 2. The tension spring in this device moves the sleeve block, increasing its movement speed and making the L-shaped block more securely fixed to the one-way valve. The mounting base and bolts work together to fix the motor, while also facilitating disassembly and maintenance. The sliding groove and slider work together to limit the movement of the square plate, improving its stability during movement.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural main body diagram according to an embodiment of the present utility model is shown;

[0019] Figure 2 A cross-sectional view of the structure according to an embodiment of the present invention is shown;

[0020] Figure 3 A partial bottom view of the structure according to an embodiment of the present invention is shown;

[0021] Figure 4 A bottom view of the structure of the adjustment mechanism according to an embodiment of the present invention is shown.

[0022] In the figure: 1, workbench; 2, detection equipment; 3, display screen; 4, electric telescopic rod; 5, sealing block; 6, L-shaped block; 7, connecting block; 8, adjusting mechanism; 81, long rod; 82, sleeve block; 83, square plate; 84, guide groove; 85, guide block; 9, motor; 10, threaded rod; 11, threaded block; 12, tension spring; 13, mounting seat; 14, sliding groove; 15, sliding block; 16, protective pad; 17, supporting block; 18, heat dissipation hole; 19, inflation equipment. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely explained in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0024] The utility model embodiment provides a one-way valve automatic testing device, including workbench 1, exemplary, such as Figures 1-4 Indicated.

[0025] The left side fixedly connected of workbench 1 top has detection equipment 2, the right side fixedly connected of detection equipment 2 has inflation equipment 19, the left side embedding of detection equipment 2 is provided with display screen 3, the right side fixedly connected of workbench 1 top has electric telescopic rod 4, the output end transmission connection of electric telescopic rod 4 has sealing block 5, the front side and the back of workbench 1 top are provided with L-shaped block 6, the bottom fixedly connected of L-shaped block 6 has connecting block 7, the bottom of connecting block 7 is through to the inner chamber of workbench 1, the top of workbench 1 inner chamber is provided with adjusting mechanism 8, the bottom of workbench 1 inner chamber is provided with motor 9, the output end transmission connection of motor 9 has threaded rod 10, the surface screw connection of threaded rod 10 has threaded block 11.

[0026] The adjusting mechanism 8 includes a long rod 81 fixedly connected to the top of the inner chamber of the workbench 1, as shown in Figures 1-4 Indicated.

[0027] The surface of the long rod 81 is slidably connected to two sleeve blocks 82, the top of the sleeve block 82 is fixedly connected to the connecting block 7, the bottom of the long rod 81 is provided with a square plate 83, the bottom of the square plate 83 is fixedly connected to the threaded block 11, the top of the square plate 83 is provided with two guide grooves 84, the inner cavity of the guide groove 84 is slidably connected to a guide block 85, the top of the guide block 85 is fixedly connected to the sleeve block 82.

[0028] Specifically, the detection device 2 can accurately measure the pressure change of the one-way valve during the inflation process and display it in real time through the display screen 3, so as to accurately judge the sealing performance of the one-way valve, the inflation device 19 can accurately control the inflation pressure and inflation time, and ensure the accuracy and consistency of the test conditions, the L-shaped block 6 is stably clamped on the one-way valve through cooperation with the adjusting mechanism 8, the sliding of the guide block 85 in the guide groove 84 ensures the smooth movement of the L-shaped block 6, and the device can adapt to the test requirements of one-way valves of different sizes and shapes, and the electric telescopic rod 4 drives the sealing block 5 to seal the other end of the one-way valve, so that the one-way valve is more accurate during the test.

[0029] The surface of the long rod 81 is sleeved with a tension spring 12, both ends of the tension spring 12 are fixedly connected with the sleeve block 82, as shown in Figures 1-4 .

[0030] The surface of the motor 9 is sleeved with a mounting seat 13, the top of the mounting seat 13 is threadedly connected with a bolt, the workbench 1 is detachably connected with the motor 9 through the bolt, the front side and the rear side of the inner cavity of the workbench 1 are both provided with a sliding groove 14, the inner cavity of the sliding groove 14 is slidably connected with a sliding block 15, one side of the sliding block 15 is fixedly connected with the square plate 83, one side of the L-shaped block 6 is fixedly connected with a protective pad 16, the protective pad 16 is rectangular in shape, the four corners of the bottom of the workbench 1 are all fixedly connected with supporting blocks 17, the four supporting blocks 17 are symmetrically arranged, both sides of the top of the detection device 2 are both provided with a heat dissipation hole 18, and the inner cavity of the heat dissipation hole 18 is fixedly connected with a filter screen.

[0031] Specifically, the setting of the tension spring 12 plays a role in moving the sleeve block 82, accelerates the moving speed of the sleeve block 82, and makes the fixation of the L-shaped block 6 on the one-way valve more compact, the cooperation of the mounting seat 13 and the bolt plays a role in fixing the motor 9, and facilitates the disassembly and maintenance of the motor 9 by the user, the cooperation of the sliding groove 14 and the sliding block 15 plays a role in limiting the square plate 83, improves the stability of the square plate 83 during movement, the setting of the protective pad 16 plays a role in protecting the one-way valve, reduces the friction between the one-way valve and the L-shaped block 6, and makes the surface of the one-way valve not easy to wear, the setting of the supporting block 17 plays a role in supporting the test device, improves the stability of the test device during placement, and the cooperation of the heat dissipation hole 18 and the filter screen plays a role in dissipating heat for the detection device 2, prolongs the service life of the detection device 2, prevents external dust from entering the inner cavity of the detection device 2, and improves the cleanliness of the inner cavity of the detection device 2.

[0032] The working principle of the one-way valve automatic test device is as follows:

[0033] The device in use, the user will one-way valve one end of the set in the air inflation equipment 19 air hole surface, and then start the motor 9, the output end of the motor 9 drive screw rod 10 rotation, screw rod 10 in the rotation process drive screw block 11 moves, screw block 11 drive square plate 83 moves, square plate 83 in the movement will make the guide block 85 in the inner cavity of the guide groove 84 sliding, so that the two guide block 85 relative movement, guide block 85 drive sleeve block 82 in the surface of the long rod 81 sliding, sleeve block 82 in the sliding through the elastic force of tension spring 12 can accelerate the moving speed of sleeve block 82, sleeve block 82 in the movement will drive the connecting block 7 moves, connecting block 7 drive L-shaped block 6 moves, so that two L-shaped block 6 close to each other, L-shaped block 6 drive protective pad 16 with one-way valve contact, so as to clamp fixed one-way valve, and then start the electric telescopic rod 4, the output end of the electric telescopic rod 4 drive sealing block 5 moves, so that the one side of the sealing block 5 and the other end of the one-way valve contact, start the inflation equipment 19, the inside of one-way valve inflation, gradually increase the pressure to the specified value, and keep a certain time, the data will be obtained by detection equipment 2 display in the surface of the display screen 3, if the pressure in the specified time without significant decline, the sealing of one-way valve is good, otherwise, it shows that the one-way valve exists leakage.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part technical features, and these modifications or replacements do not make the essence of corresponding technical scheme deviate from the spirit and scope of the technical scheme of each embodiment of the utility model.

Claims

1. A device for automatic testing of check valves, comprising a worktable (1), characterized in that: The left side of the top of the workbench (1) is fixedly connected with a detection device (2), the right side of the detection device (2) is fixedly connected with an inflation device (19), the left side of the detection device (2) is embedded with a display screen (3), the right side of the top of the workbench (1) is fixedly connected with an electric telescopic rod (4), the output end of the electric telescopic rod (4) is drivingly connected with a sealing block (5), the front side and the rear side of the top of the workbench (1) are provided with L-shaped blocks (6), the bottom of the L-shaped block (6) is fixedly connected with a connecting block (7), the bottom of the connecting block (7) penetrates into the inner cavity of the workbench (1), the top of the inner cavity of the workbench (1) is provided with an adjusting mechanism (8), the bottom of the inner cavity of the workbench (1) is provided with a motor (9), the output end of the motor (9) is drivingly connected with a threaded rod (10), the surface of the threaded rod (10) is threadedly connected with a threaded block (11).

2. A one-way valve automatic testing device according to claim 1, characterized in that: The adjusting mechanism (8) comprises a long rod (81) fixedly connected to the top of the inner cavity of the workbench (1), the surface of the long rod (81) is slidingly connected with two sleeve blocks (82), the top of the sleeve block (82) is fixedly connected with the connecting block (7), the bottom of the long rod (81) is provided with a square plate (83), the bottom of the square plate (83) is fixedly connected with the threaded block (11), the top of the square plate (83) is provided with two guide grooves (84), the inner cavity of the guide groove (84) is slidingly connected with a guide block (85), the top of the guide block (85) is fixedly connected with the sleeve block (82).

3. A one-way valve automatic testing device according to claim 2, characterized in that: The surface of the long rod (81) is sleeved with a tension spring (12), both ends of the tension spring (12) are fixedly connected with the sleeve block (82).

4. The automatic unidirectional valve testing device of claim 1, wherein: The surface of the motor (9) is sleeved with a mounting seat (13), the top of the mounting seat (13) is threadedly connected with a bolt, the workbench (1) and the motor (9) are detachably connected through the bolt.

5. A one-way valve automatic testing device according to claim 2, characterized in that: The front side and the rear side of the inner cavity of the workbench (1) are provided with sliding grooves (14), the inner cavity of the sliding groove (14) is slidingly connected with a sliding block (15), one side of the sliding block (15) is fixedly connected with the square plate (83).

6. A one-way valve automatic testing device according to claim 1, characterized in that: One side of the L-shaped block (6) is fixedly connected with a protective pad (16), the protective pad (16) is rectangular in shape.

7. A one-way valve automatic testing device according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected with support blocks (17) at four corners, the four support blocks (17) are symmetrically arranged.

8. A one-way valve automatic testing device according to claim 1, characterized in that: Both sides of the top of the detection device (2) are provided with heat dissipation holes (18), the inner cavity of the heat dissipation hole (18) is fixedly connected with a filter screen.

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