Hydraulic testing device for vehicle-mounted steel tank body

Abstract

The utility model discloses a vehicle-mounted steel tank hydraulic test device, and relates to the technical field of hydraulic test devices, the vehicle-mounted steel tank hydraulic test device comprises a mounting seat and a pressure gauge arranged at the top of the mounting seat, a pressure seat is arranged at the bottom of the pressure gauge, a piston cavity is formed in the pressure seat, and a piston block is slidably connected in the piston cavity; sealing grooves are symmetrically formed in the surface of the piston block, and sealing rings are clamped in the sealing grooves. According to the vehicle-mounted steel tank, the pressure seat is mounted on the mounting seat, the piston cavity is formed in the pressure seat, after an external hydraulic pump fills pressure into the vehicle-mounted steel tank body, the pressure acts on the piston block in the piston cavity, the piston block is jacked to press gas in the piston cavity into the pressure gauge through the gas inlet hole of the pressure gauge, and the gas in the piston cavity is compressed into the pressure gauge; the air inlet of the pressure gauge is not in contact with the liquid, so that the liquid is prevented from being blocked in the air inlet of the pressure gauge, and the test normality is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hydraulic testing devices, in particular to a vehicle-mounted steel tank hydraulic testing device. BACKGROUND

[0002] After the production of a vehicle-mounted steel tank, liquid needs to be filled in the tank for hydraulic testing, so as to detect whether the tank has a leakage point and help determine whether the structural strength of the tank is sufficient. At present, common equipment for hydraulic testing of vehicle-mounted steel tanks includes a pressure sensor, a data acquisition system, a hydraulic pump, connecting pipelines and the like. The working end of the pressure sensor is generally located in the vehicle-mounted steel tank and is used for receiving the pressure in the vehicle-mounted steel tank. The receiving end of a traditional pressure sensor, such as a pressure gauge, is generally a gas hole used for compressed gas to enter. However, the vehicle-mounted steel tank is filled with liquid for hydraulic testing, and the liquid is easy to enter the gas inlet and cause blockage of the gas inlet, resulting in failure of pressure measurement. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a vehicle-mounted steel tank hydraulic testing device to solve the problems in the background technology.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: including the mounting seat and the pressure gauge arranged on the top of the mounting seat, the bottom of the pressure gauge is equipped with the pressure seat,

[0005] The piston cavity is formed in the interior of the pressure seat, the piston block is slidably connected in the piston cavity, the surface of the piston block is symmetrically provided with the sealing groove, and the sealing ring is clamped in the sealing groove.

[0006] In a further embodiment, the mounting seat is in the shape of a pie-shaped circle, and the mounting seat is adapted in size to the manhole cover mounting port of the vehicle-mounted steel tank.

[0007] In a further embodiment, the surface of the pressure seat is communicated with the pressure regulating pipe, and the surface of the pressure regulating pipe is provided with the valve.

[0008] In a further embodiment, the connecting end of the pressure gauge is screwed with the piston cavity of the pressure seat, and the pressure seat is embedded in the mounting seat.

[0009] In a further embodiment, the top of the mounting seat is respectively communicated with the hydraulic pump connecting pipe and the water inlet pipe, and the surface of the hydraulic pump connecting pipe and the water inlet pipe is respectively provided with the connecting flange.

[0010] In a further embodiment, the top of the mounting seat is communicated with the pressure discharge pipe, and the surface of the pressure discharge pipe is provided with the control valve.

[0011] In a further embodiment, the top of the mounting base is provided with a threaded mounting hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This application features a pressure seat mounted on a mounting base. The pressure seat has a piston chamber inside. When an external hydraulic pump pressurizes the steel tank inside the vehicle, the pressure acts on the piston block inside the piston chamber, pushing the piston block to force the gas inside the piston chamber into the pressure gauge through the air inlet, thus completing the pressure test. The air inlet of the pressure gauge will not come into contact with liquid, preventing liquid from clogging the air inlet of the pressure gauge and ensuring the normality of the test. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0015] Figure 2 This is a cross-sectional view of the pressure seat in an embodiment of this application;

[0016] Figure 3 This is a schematic diagram showing the connection between the piston block and the sealing ring in an embodiment of this application.

[0017] In the diagram: 1. Mounting base; 2. Pressure gauge; 3. Pressure seat; 4. Piston chamber; 5. Piston block; 6. Sealing groove; 7. Sealing ring; 8. Pressure regulating pipe; 9. Hydraulic pump connecting pipe; 10. Water inlet pipe; 11. Connecting flange; 12. Pressure relief pipe; 13. Threaded mounting hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1

[0020] A vehicle-mounted hydraulic testing device for steel tanks includes a mounting base 1 and a pressure gauge 2 mounted on top of the mounting base 1. A pressure seat 3 is located at the bottom of the pressure gauge 2. Figure 1 As shown in this application, the mounting base 1 is used to install at the manhole cover mounting position of the vehicle-mounted steel tank. The size of the mounting base 1 is similar to that of the manhole cover. It is used to seal the manhole cover opening of the vehicle-mounted steel tank. The pressure gauge 2 is designed on the top of the mounting base 1 to detect the pressure inside the vehicle-mounted steel tank. The pressure seat 3 is located on the mounting base 1 and is used to transmit the pressure inside the vehicle-mounted steel tank to the pressure gauge 2.

[0021] Further, the top of the mounting seat 1 is respectively communicated with a hydraulic pump connecting pipe 9 and a water inlet pipe 10, the surfaces of the hydraulic pump connecting pipe 9 and the water inlet pipe 10 are provided with connecting flanges 11, the top of the mounting seat 1 is communicated with a pressure discharge pipe 12, and the surface of the pressure discharge pipe 12 is provided with a control valve. Figure 1 As shown in the figure, the hydraulic pump connecting pipe 9 is provided with a connecting flange 11 on the upper surface, and the hydraulic pump connecting pipe 9 is communicated with the mounting seat 1, when the external hydraulic pump is connected with the hydraulic pump connecting pipe 9 through the connecting flange 11, the internal part of the vehicle-mounted steel tank can be filled with pressure through the external hydraulic pump, the water inlet pipe 10 is communicated with the mounting seat 1, when the mounting seat 1 is installed at the manhole cover mounting port position of the vehicle-mounted steel tank, the external water supply equipment can be connected with the connecting flange 11 of the water inlet pipe 10, and the external water body can be sent into the internal part of the vehicle-mounted steel tank through the water inlet pipe 10, which is used for testing whether there is a leakage point in the vehicle-mounted steel tank, the pressure discharge pipe 12 is designed at the top of the mounting seat 1, which is used for pressure relief in the internal part of the vehicle-mounted steel tank, and when the test is completed, the pressure in the internal part of the vehicle-mounted steel tank can be discharged through the pressure discharge pipe 12.

[0022] The internal part of the pressure seat 3 is provided with a piston cavity 4, the piston cavity 4 is slidably connected with a piston block 5, and the surface of the piston block 5 is symmetrically provided with a sealing groove 6, and the sealing groove 6 is connected with a sealing ring 7. Figure 1 、 Figure 2 and Figure 3 As shown in the figure, the piston cavity 4 is provided in the internal part of the pressure seat 3, which is used for providing a moving path for the piston block 5, the working end of the pressure gauge 2 is screwed on the top of the pressure seat 3 and communicated with the piston cavity 4, the piston block 5 is in the internal part of the piston cavity 4, the sealing groove 6 is designed on the surface of the piston block 5, which is used for the installation and fixation of the sealing ring 7, so that the sealing ring 7 can be fixed on the surface of the piston block 5, the sealing ring 7 is on the surface of the piston block 5, and the sealing ring 7 is annular, which is used for sealing between the piston block 5 and the piston cavity 4, when the external hydraulic pump fills the internal part of the vehicle-mounted steel tank with pressure, the pressure will act on the pressure seat 3, and then act on the piston block 5 through the piston cavity 4, so as to lift the piston block 5 upward, the piston block 5 compresses the air in the internal part of the piston cavity 4, and the air pressure is pressed into the pressure gauge 2 through the air inlet hole of the pressure gauge 2, so as to prevent the liquid in the internal part of the vehicle-mounted steel tank from entering the piston cavity 4 on the top of the piston block 5, and avoid that the liquid in the internal part of the vehicle-mounted steel tank is filled with liquid, which is easy to enter the air inlet, causing the air inlet to be blocked, resulting in failure of pressure measurement.

[0023] Further, the surface of the pressure seat 3 is communicated with a pressure regulating pipe 8, and the surface of the pressure regulating pipe 8 is provided with a valve. Figure 1 and Figure 2As shown, the pressure regulating tube 8 is installed above the pressure seat 3, and the pressure regulating tube 8 communicates with the piston cavity 4, and the staff can supplement or extract a certain air inside the piston cavity 4 through the pressure regulating tube 8, so as to adjust the air pressure compressed by the piston block 5 inside the piston cavity 4, so as to ensure that the air pressure compressed by the piston block 5 inside the piston cavity 4 is consistent with the pressure directly acting on the pressure gauge 2 from the inside of the vehicle-mounted steel tank body.

[0024] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydraulic testing device for vehicle-mounted steel tank body, comprising a mounting seat (1) and a pressure gauge (2) arranged at the top of the mounting seat (1), characterized in that: The bottom of the pressure gauge (2) is provided with a pressure seat (3); The inside of the pressure seat (3) is provided with a piston cavity (4), the inside of the piston cavity (4) is slidably connected with a piston block (5), the surface of the piston block (5) is symmetrically provided with a sealing groove (6), and the inside of the sealing groove (6) is clamped with a sealing ring (7).

2. The hydraulic testing device for a vehicle-mounted steel tank body according to claim 1, characterized in that: The shape of the mounting seat (1) is a pie-shaped circle, and the mounting seat (1) is matched with the size of the manhole cover mounting port of the vehicle-mounted steel tank body.

3. The hydraulic testing device for a steel tank on a vehicle according to claim 1, characterized in that: The surface of the pressure seat (3) is communicated with a pressure regulating pipe (8), and the surface of the pressure regulating pipe (8) is equipped with a valve.

4. The hydraulic testing device for a steel tank on a vehicle according to claim 1, characterized in that: The connecting end of the pressure gauge (2) is screwed with the piston cavity (4) of the pressure seat (3), and the pressure seat (3) is embedded on the mounting seat (1).

5. The hydraulic testing device for a steel tank on a vehicle according to claim 1, characterized in that: The top of the mounting seat (1) is respectively communicated with a hydraulic pump connecting pipe (9) and a water inlet pipe (10), and the surfaces of the hydraulic pump connecting pipe (9) and the water inlet pipe (10) are both mounted with a connecting flange (11).

6. The hydraulic testing device for a steel tank on a vehicle according to claim 1, characterized in that: The top of the mounting seat (1) is communicated with a pressure discharge pipe (12), and the surface of the pressure discharge pipe (12) is mounted with a control valve.

7. The hydraulic testing device for a steel tank on a vehicle according to claim 1, characterized in that: The top of the mounting seat (1) is provided with a threaded mounting hole (13).

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