Check valve pressure detection device

Abstract

The utility model discloses a check valve pressure detection device which comprises a workbench, the upper surface of the workbench is provided with two cushion blocks, the upper surfaces of the two cushion blocks are fixedly connected with corresponding electric telescopic rods respectively, the outer wall of a connecting pipe is provided with a cavity, the outside of the cavity is provided with a sealing ring, and the sealing ring is fixedly connected with the connecting pipe. The sealing ring is round, the surface of the sealing ring makes contact with the check valve body, and the sealing ring is made of TPU. Through the arrangement of the workbench, the cushion block, the electric telescopic rods, the cross rod, the connecting pipe, the cavity, the sealing ring and the check valve body, when check valves with different inner diameters need to be sealed, the two electric telescopic rods drive the cross rod to move, and the check valves with different sizes can be sealed by the sealing ring in the mode, so that the check valves with different inner diameters can be sealed by the sealing ring. And the sealing tool does not need to be replaced frequently, so that the working efficiency of the check valve pressure detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve detection related technical field, especially a check valve pressure detection device. BACKGROUND

[0002] Check valve is a kind of automatic valve, is widely used in various fluid conveying systems, its main function is to prevent medium backflow, prevent pump and driving motor reverse rotation, and the medium of container is discharged. For example in nuclear power plant, check valve is mostly installed in the system of high nuclear safety level, as the boundary isolation valve of important system, is important to the safe operation of power station. In the oil filter of engine, check valve can ensure the normal flow of lubricating oil, and protect engine parts.

[0003] The check valve of the prior art needs to be sealed first when detecting pressure, then water is added for detection, and whether there is water leakage is observed by naked eyes of the operator, but when the inner diameter of the check valve is different, the sealing tooling needs to be replaced before the check valve is resealed, so that the sealing tooling needs to be frequently replaced when detecting check valves of different sizes, which increases the working time of the check valve pressure detection device, thereby reducing the working efficiency of the check valve pressure detection device. UTILITARY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a check valve pressure detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A check valve pressure detection device, including workbench, the upper surface of workbench is installed with two pad blocks, the upper surface of two pad blocks is fixedly connected with corresponding electric telescopic rod respectively, the output end of two electric telescopic rods is fixedly connected with corresponding cross bar respectively, the end of two cross bars is fixedly connected with connecting pipe, the outer wall of connecting pipe is installed with cavity, the outside of cavity is installed with sealing ring, the shape of sealing ring is annular, the surface of sealing ring is in contact with check valve main part, the material of sealing ring is TPU material.

[0007] Preferably, the lower end of the workbench is provided with a motor, the output shaft of the motor is fixedly connected with a double-headed stud, the two ends of the double-headed stud are rotatably connected with the workbench through bearings, the outer wall of the double-headed stud is threadedly connected with two threaded blocks, the upper ends of the two threaded blocks are fixedly connected with two connecting rods respectively, and the surfaces of the two connecting rods are slidably connected with the workbench through a sliding groove.

[0008] Preferably, the upper ends of the two connecting rods are fixedly connected with corresponding fixing blocks respectively.

[0009] Preferably, the surfaces of the two fixing blocks are respectively fitted with corresponding soft pads, and the surfaces of the two soft pads are machined with arc-shaped grooves.

[0010] Preferably, the lower end of the check valve body is placed on a workbench.

[0011] Preferably, a valve stem is mounted on the surface of the sealing ring.

[0012] Preferably, both of the cushions are made of rubber.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By using a set workbench, pad, electric telescopic rod, crossbar, connecting pipe, cavity, sealing ring, and check valve body, when it is necessary to seal check valves of different inner diameters, firstly, the crossbar is moved by two electric telescopic rods, the crossbar moves the connecting pipe, and the connecting pipe moves the cavity and sealing ring. When the cavity and sealing ring move to the valve port of the check valve body, the electric telescopic rod stops working. Then, gas is injected into the cavity through the valve nozzle, causing the sealing ring to expand. When the surface of the sealing ring is tightly against the port of the check valve, the operator stops pumping air into the cavity. In this way, check valves of different sizes can be sealed by the sealing ring without frequent replacement of the sealing fixture, which improves the working efficiency of the check valve pressure detection device.

[0015] 2. The system utilizes a motor, double-ended studs, threaded blocks, connecting rods, fixing blocks, and soft pads. When the check valve needs to be secured, the motor drives the double-ended studs to rotate, which in turn moves the two threaded blocks. These threaded blocks then move the connecting rods, which in turn move the fixing blocks synchronously. Finally, the two fixing blocks move the soft pads, pressing them against the outer wall of the check valve body and fixing the check valve body to the worktable. This prevents the check valve from moving during testing, thus avoiding false leaks and improving the effectiveness of check valve pressure testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a check valve pressure detection device proposed in this utility model;

[0017] Figure 2 for Figure 1 Rear view diagram;

[0018] Figure 3 for Figure 1 A diagram showing the view from below;

[0019] Figure 4 for Figure 1 A magnified view of part A in the middle;

[0020] Figure 5 for Figure 3 a partial enlarged view of the middle B part;

[0021] Figure 6 for Figure 4 a partial side view of the schematic view.

[0022] In the figure: 1, workbench; 2, cushion block; 3, electric telescopic rod; 4, cross bar; 5, connecting pipe; 6, cavity; 7, air cock; 8, sealing ring; 9, check valve body; 10, motor; 11, double-headed stud; 12, threaded block; 13, connecting rod; 14, fixed block; 15, soft pad. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0024] Embodiment 1, refer to Figures 1 to 6 A check valve pressure detection device, comprising a workbench 1, the upper surface of the workbench 1 is provided with two cushion blocks 2, the cushion blocks 2 are fixed on the workbench 1, the upper surfaces of the two cushion blocks 2 are respectively fixedly connected with corresponding electric telescopic rods 3, the model of the electric telescopic rods 3 is selected according to actual needs, and the electric telescopic rods 3 can meet the working needs, the output ends of the two electric telescopic rods 3 are respectively fixedly connected with corresponding cross bars 4, the electric telescopic rods 3 drive the cross bars 4 to move, the end portions of the two cross bars 4 are respectively fixedly connected with a connecting pipe 5, the cross bars 4 drive the connecting pipe 5 to move, the outer wall of the connecting pipe 5 is provided with a cavity 6, the connecting pipe 5 drives the cavity 6 to move, the outer portion of the cavity 6 is provided with a sealing ring 8, the sealing ring 8 can seal the upper port of a check valve body 9, the sealing ring 8 is annular in shape, so as to avoid the sealing effect inside the check valve body 9 from being reduced, the surface of the sealing ring 8 is in contact with the check valve body 9, and the material of the sealing ring 8 is TPU. When it is necessary to seal check valves with different sizes of inner diameters, first, the two electric telescopic rods 3 drive the cross bars 4 to move, the cross bars 4 drive the connecting pipe 5 to move, the connecting pipe 5 drives the cavity 6 and the sealing ring 8 to move, when the cavity 6 and the sealing ring 8 move to the valve port of the check valve body 9, the electric telescopic rods 3 stop working, then air is filled into the cavity 6 through the air cock 7, and the sealing ring 8 is expanded, when the surface of the sealing ring 8 tightly abuts against the port of the check valve, the operator stops inflating the cavity 6, and in the above manner, check valves with different sizes can be sealed by the sealing ring 8, and it is not necessary to frequently replace the sealing tooling, so that the working efficiency of the check valve pressure detection device is improved.

[0025] The lower end of the workbench 1 is provided with a motor 10. The model of the motor 10 is selected according to actual needs. The output shaft of the motor 10 is fixedly connected with a double-headed stud 11. The motor 10 drives the double-headed stud 11 to rotate. The two ends of the double-headed stud 11 are rotatably connected with the workbench 1 through bearings. The double-headed stud 11 rotates on the workbench 1. The outer wall of the double-headed stud 11 is threadedly connected with two threaded blocks 12. The double-headed stud 11 drives the threaded blocks 12 to move. The upper ends of the two threaded blocks 12 are fixedly connected with corresponding connecting rods 13, respectively. The threaded blocks 12 drive the connecting rods 13 to move. The surfaces of the two connecting rods 13 are slidably connected with the workbench 1 through sliding grooves. The connecting rods 13 slide on the workbench 1. The upper ends of the two connecting rods 13 are fixedly connected with corresponding fixed blocks 14, respectively. The connecting rods 13 drive the fixed blocks 14 to move. The surfaces of the two fixed blocks 14 are provided with corresponding soft pads 15, respectively. The fixed blocks 14 drive the soft pads 15 to move. The surfaces of the two soft pads 15 are both processed with arc-shaped grooves. The arc-shaped grooves can make the check valve body 9 be centrally placed on the workbench 1. The lower end of the check valve body 9 is placed on the workbench 1. The surface of the sealing ring 8 is provided with an air cock 7. The air cock 7 can keep the gas in the sealing ring 8 so that the sealing ring 8 can always seal the check valve body 9. The materials of the two soft pads 15 are both rubber materials.

[0026] The working principle of the embodiment is as follows: in use, the external power supply of the motor 10 is turned on, and the motor 10 is started. The motor 10 drives the double-headed stud 11 to rotate. The double-headed stud 11 drives the two threaded blocks 12 to move. The threaded blocks 12 drive the connecting rods 13 to move. The two connecting rods 13 drive the fixed blocks 14 to synchronously move. The two fixed blocks 14 drive the soft pads 15 to move, so that the soft pads 15 abut against the outer wall of the check valve body 9, and the check valve body 9 is fixed on the workbench 1, thereby avoiding the check valve body 9 from moving during detection, so that the false leakage is avoided. First, the two electric telescopic rods 3 drive the cross rod 4 to move. The cross rod 4 drives the connecting pipe 5 to move. The connecting pipe 5 drives the cavity 6 and the sealing ring 8 to move. When the cavity 6 and the sealing ring 8 move to the valve port of the check valve body 9, the electric telescopic rod 3 stops working. Then, the air cock 7 is used to fill the gas into the cavity 6, and the sealing ring 8 is expanded. When the surface of the sealing ring 8 tightly abuts against the port of the check valve body 9, the operator stops inflating the cavity 6. At this time, the sealing ring 8 seals the port of the check valve body 9. Then, the connecting pipe 5 is used to send the detection water into the check valve body 9. Then, the check valve body 9 is placed. Then, the operator observes whether there is detection water leakage at the lower end of the check valve body 9, so that the detection work of the check valve pressure is completed.

[0027] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A check valve pressure detection device comprising a workbench (1), characterized in that, The upper surface of the workbench (1) is provided with two pads (2), the upper surfaces of the two pads (2) are respectively fixedly connected with corresponding electric telescopic rods (3), the output ends of the two electric telescopic rods (3) are respectively fixedly connected with corresponding cross rods (4), the end portions of the two cross rods (4) are fixedly connected with a connecting pipe (5), the outer wall of the connecting pipe (5) is provided with a cavity (6), the outer portion of the cavity (6) is provided with a sealing ring (8), the sealing ring (8) is annular in shape, the surface of the sealing ring (8) is in contact with a check valve body (9), and the sealing ring (8) is made of TPU material.

2. A check valve pressure detection device according to claim 1, wherein The lower end of the workbench (1) is provided with a motor (10), the output shaft of the motor (10) is fixedly connected with a double-headed stud (11), the two ends of the double-headed stud (11) are rotatably connected with the workbench (1) through bearings, the outer wall of the double-headed stud (11) is threadedly connected with two threaded blocks (12), the upper ends of the two threaded blocks (12) are respectively fixedly connected with corresponding connecting rods (13), and the surfaces of the two connecting rods (13) are slidably connected with the workbench (1) through sliding grooves.

3. A check valve pressure detection device according to claim 2, wherein The upper ends of the two connecting rods (13) are respectively fixedly connected with corresponding fixed blocks (14).

4. A check valve pressure detection device according to claim 3, wherein The surfaces of the two fixed blocks (14) are respectively provided with corresponding soft pads (15), and the surfaces of the two soft pads (15) are respectively provided with arc-shaped grooves.

5. A check valve pressure detection device according to claim 1, wherein The lower end of the check valve body (9) is placed on the workbench (1).

6. A check valve pressure detection device according to claim 1, wherein The surface of the sealing ring (8) is provided with an air valve (7).

7. A check valve pressure detection device according to claim 4, wherein The two soft pads (15) are made of rubber material.

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