CN216899610U

CN216899610U - Low temperature stop valve durability testing arrangement

Info

Publication number: CN216899610U
Application number: CN202122676689.8U
Authority: CN
Inventors: 邹建飞; 夏忠孝; 桂传刚; 刘淑琼
Original assignee: Jiangsu Weilan Valve Co ltd
Current assignee: Jiangsu Weilan Valve Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-07-05
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a low-temperature stop valve durability testing device which comprises a testing table, wherein pillars are welded at four corners of the top end of the testing table, the top end of each pillar is connected with a top plate, a hydraulic cylinder is installed at the center of the top end of each top plate, the output end of each hydraulic cylinder penetrates through the top plate and is connected with a top cover plate, a circular groove is formed in the bottom end of each top cover plate, a jet head is installed at the top end inside the circular groove, a hoop is installed on one side, close to the jet head, of the testing table, one end of the jet head is connected with an air guide pipe, one end of the air guide pipe penetrates through the top cover plate and extends to the outside, the bottom end of the hoop penetrates through the testing table and is in threaded connection with a sealing plug, the bottom end of the sealing plug is connected with a pressure gauge, the detection end of the pressure gauge penetrates through the sealing plug and extends to the inside of the hoop, and a pair of sliding grooves is formed in the surface of the top end of the testing table. This kind of low temperature stop valve durability testing arrangement, simple structure is reasonable, the modern design, and easy operation is convenient, can accomplish the gas tightness fast and detect, and numerical value is more accurate, has higher practical value.

Description

Low temperature stop valve durability testing arrangement

Technical Field

The utility model relates to the technical field of valve body detection, in particular to a device for testing the durability of a low-temperature stop valve.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, placing reverse flow, shunting or overflowing and pressure relief and the like, wherein the low-temperature stop valve is a valve which is widely used, and the detection standard is strict.

However, the existing testing device generally only performs a cooling test on the valve body for judging whether the valve body meets the use condition of a low-temperature state or not, so that the test of the air tightness detection and pressure resistance of the valve body is ignored. Therefore, the durability test device for the low-temperature stop valve is provided by improving the device.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the low-temperature stop valve durability testing device comprises a testing table, wherein supporting columns are welded at four corners of the top end of the testing table, a top plate is connected to the top end of each supporting column, a hydraulic cylinder is installed in the center of the top end of the top plate, the output end of the hydraulic cylinder penetrates through the top plate and is connected with a top cover plate, a circular groove is formed in the bottom end of the top cover plate, a jet head is installed at the top end of the inside of the circular groove, a hoop is installed on one side, close to the jet head, of the testing table, one end of the jet head is connected with a gas guide pipe, one end of the gas guide pipe penetrates through the top cover plate and extends to the outside, the bottom end of the hoop penetrates through the testing table and is in threaded connection with a sealing plug, a pressure gauge is connected to the bottom end of the sealing plug, and the detection end of the pressure gauge penetrates through the sealing plug and extends to the inside of the hoop.

As a preferable technical scheme, the top end surface of the test board is provided with a pair of sliding grooves, sliding blocks are respectively connected inside the sliding grooves in a sliding mode, and clamping plates are respectively installed on one adjacent side of the two sliding blocks.

As a preferable technical scheme of the utility model, one side of the inner wall of each of the pair of sliding grooves is movably connected with a lead screw, and one end of each lead screw is in threaded connection with one side of each sliding block.

As a preferred technical scheme of the utility model, the two sides of the outer wall of the test board are respectively provided with a motor, and the output end of the motor penetrates through the test board and is in transmission connection with the lead screw.

As a preferred technical scheme of the utility model, one side of the top end of the top plate is provided with an air pump, and the output end of the air pump is connected with one end of the air guide pipe.

As a preferred technical scheme of the utility model, the outer wall of the hoop is provided with an annular clamping groove, and a sealing gasket is arranged in the annular clamping groove.

As a preferred technical scheme, four corners of the bottom end of the test board are connected with shock pads, and anti-skidding textures are arranged at the bottom ends of the shock pads.

The utility model has the beneficial effects that:

1. the device for testing the durability of the low-temperature stop valve has the advantages that through the mutual matching of the hydraulic cylinder, the top cover plate, the air nozzle, the hoop and the pressure gauge, the device achieves the function of detecting the air tightness of the valve body, the top cover plate is pushed through the hydraulic cylinder, the top cover plate and the hoop achieve sealed clamping of the valve body, and then the air nozzle, the sealing plug and the pressure gauge are used in a matched mode, so that the device achieves the function of pressurizing the interior of the valve body, and through observing the numerical value of the pressure gauge, whether the valve body has good air tightness is judged, and the compression-resistant numerical value of the valve body is obtained;

2. this kind of low temperature stop valve durability testing arrangement uses through the cooperation of slider with splint for the device realizes the function of clamping to the valve body, and the connection of rethread lead screw makes two sliders realize stable reciprocating motion, and through the kinetic energy output of motor, the lead screw of being convenient for promotes the function that the slider realized the removal, and simultaneously, makes through the installation of air pump, makes for the device possesses sufficient detection atmospheric pressure. The utility model has the advantages of simple and reasonable structure, novel design, simple and convenient operation, capability of rapidly completing the air tightness detection, more accurate numerical value and higher practical value.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a perspective view of a low temperature shut-off valve durability test apparatus of the present invention;

FIG. 2 is a cross-sectional view of the low temperature shut-off valve durability test apparatus of the present invention;

FIG. 3 is a sectional view of the structure of the top cover plate of the durability testing device of the low-temperature stop valve of the utility model;

fig. 4 is an enlarged schematic view of the structure a of fig. 1 of the durability test apparatus of the low temperature cutoff valve according to the present invention.

In the figure: 1. a test bench; 2. a pillar; 3. a top plate; 4. a hydraulic cylinder; 5. an air pump; 6. an air duct; 7. a top cover plate; 8. a gas showerhead; 9. a ferrule; 10. a motor; 11. a slider; 12. a splint; 13. a sealing plug; 14. a pressure gauge; 15. a lead screw; 16. a sealing gasket; 17. a chute.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-4, the low-temperature stop valve durability testing device comprises a testing table 1, pillars 2 are welded at four corners of the top end of the testing table 1, a top plate 3 is connected to the top ends of the pillars 2, a hydraulic cylinder 4 is installed at the center of the top end of the top plate 3, the output end of the hydraulic cylinder 4 penetrates through the top plate 3 and is connected with a top cover plate 7, a circular groove is formed in the bottom end of the top cover plate 7, an air nozzle 8 is installed at the top end inside the circular groove, a hoop 9 is installed on one side, close to the air nozzle 8, of the testing table 1, an air guide pipe 6 is connected to one end of the air nozzle 8, one end of the air guide pipe 6 penetrates through the top cover plate 7 and extends to the outside, the bottom end of the hoop 9 penetrates through the testing table 1 and is in threaded connection with a sealing plug 13, a pressure gauge 14 is connected to the bottom end of the sealing plug 13, and the detection end of the pressure gauge 14 penetrates through the sealing plug 13 and extends to the inside of the hoop 9.

Wherein, a pair of spout 17 has been seted up on testboard 1 top surface, and the inside difference sliding connection of a pair of spout 17 has slider 11, and splint 12 are installed respectively to two adjacent one sides of slider 11, uses through the cooperation of slider 11 with splint 12 for the device realizes the function of clamping to the valve body.

Wherein, inner wall one side of a pair of spout 17 swing joint has lead screw 15 respectively, and one end of lead screw 15 and one side threaded connection of slider 11 are through the connection of lead screw 15 for two sliders 11 realize stable reciprocating motion.

Wherein, motor 10 is installed respectively to 1 outer wall both sides of testboard, and test board 1 is run through to motor 10 output to be connected with the transmission of lead screw 15, through the kinetic energy output of motor 10, the lead screw 15 of being convenient for promotes the function that slider 11 realized the removal.

Wherein, air pump 5 is installed to 3 top one sides of roof, and the output of air pump 5 is connected with the one end of air duct 6, makes through the installation of air pump 5 for the device possesses sufficient detection atmospheric pressure.

Wherein, the outer wall of the hoop 9 is provided with an annular clamping groove, a sealing washer 16 is arranged in the annular clamping groove, and the sealing effect of the hoop 9 is improved by installing and using the sealing washer 16.

Wherein, 1 bottom four corners of testboard all is connected with the shock pad, and the bottom of shock pad is provided with anti-skidding texture, through the connection of shock pad, has effectively improved the stability of the device function.

The working principle is as follows: when the device for testing the durability of the low-temperature stop valve is used, firstly, the device is installed in a designated working area, and is started to carry out operation test, after the normal operation is ensured, the device is put into use, the function of detecting the air tightness of the valve body is realized by the device through the mutual matching of the hydraulic cylinder 4, the top cover plate 7, the air nozzle 8, the hoop 9, the sealing plug 13 and the pressure gauge 14, the top cover plate 7 is pushed by the hydraulic cylinder 4, the top cover plate 7 and the hoop 9 realize the sealing and clamping of the valve body, the function of pressurizing the interior of the valve body is realized by the device through the matching of the air nozzle 8, the sealing plug 13 and the pressure gauge 14, and the valve body is judged whether to have good air tightness by observing the value of the pressure gauge 14, and the pressure-resistant value of the valve body is obtained, and the device for testing the durability of the low-temperature stop valve, the device is used by matching the sliding blocks 11 with the clamping plates 12, so that the device realizes the function of clamping the valve body, the two sliding blocks 11 realize stable reciprocating movement by connection of the screw rods 15, the kinetic energy output of the motor 10 is realized, the screw rods 15 are convenient to promote the sliding blocks 11 to realize the function of movement, and meanwhile, the device is provided with sufficient detection air pressure by installation of the air pump 5. The utility model has the advantages of simple and reasonable structure, novel design, simple and convenient operation, capability of rapidly completing the air tightness detection, more accurate numerical value and higher practical value.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The low-temperature stop valve durability testing device comprises a testing table (1) and is characterized in that supporting columns (2) are welded at four corners of the top end of the testing table (1), a top plate (3) is connected to the top ends of the supporting columns (2), a hydraulic cylinder (4) is installed at the center position of the top end of the top plate (3), the output end of the hydraulic cylinder (4) penetrates through the top plate (3) and is connected with a top cover plate (7), a circular groove is formed in the bottom end of the top cover plate (7), an air nozzle head (8) is installed at the top end of the inside of the circular groove, a hoop (9) is installed on one side, close to the air nozzle head (8), of the testing table (1), one end of the air nozzle head (8) is connected with an air guide pipe (6), one end of the air guide pipe (6) penetrates through the top cover plate (7) and extends to the outside, the bottom end of the hoop (9) penetrates through the testing table (1) and is connected with a sealing plug (13) through threads, the bottom end of the sealing plug (13) is connected with a pressure gauge (14), and the detection end of the pressure gauge (14) penetrates through the sealing plug (13) and extends to the inside of the hoop (9).

2. The durability test device of the low-temperature stop valve according to claim 1, wherein a pair of sliding grooves (17) are formed in the top end surface of the test platform (1), sliding blocks (11) are respectively connected to the insides of the sliding grooves (17) in a sliding manner, and clamping plates (12) are respectively installed on one adjacent sides of the two sliding blocks (11).

3. The durability test device of the low-temperature stop valve according to claim 2, wherein a lead screw (15) is movably connected to one side of the inner wall of each of the pair of sliding grooves (17), and one end of the lead screw (15) is in threaded connection with one side of the sliding block (11).

4. The durability test device of the low-temperature stop valve according to claim 3, characterized in that motors (10) are respectively installed on two sides of the outer wall of the test bench (1), and the output ends of the motors (10) penetrate through the test bench (1) and are in transmission connection with a lead screw (15).

5. The durability test device of the low-temperature stop valve according to claim 1, wherein an air pump (5) is installed on one side of the top end of the top plate (3), and the output end of the air pump (5) is connected with one end of the air guide pipe (6).

6. The durability test device of the low-temperature stop valve according to claim 1, characterized in that the outer wall of the hoop (9) is provided with an annular clamping groove, and a sealing gasket (16) is arranged inside the annular clamping groove.

7. The durability test device of the low-temperature stop valve according to claim 1, characterized in that four corners of the bottom end of the test bench (1) are connected with shock pads, and the bottom ends of the shock pads are provided with anti-skid textures.