Safety valve on-site off-line verification device

Abstract

The utility model relates to the technical field of safety valves, in particular to an on-site off-line verification device for a safety valve. According to the technical scheme, the device comprises a workbench and an air guide pipe, the workbench is fixed to the air guide pipe, the upper surface of the air guide pipe is attached to a safety valve body, long grooves are formed in the two sides of the upper surface of the workbench respectively, moving blocks are inserted into the long grooves, supporting columns are fixed to the upper surfaces of the moving blocks, and a support is fixed to the top ends of the supporting columns; a groove is formed in the front end of the support, an air cylinder is fixed to one side of the inner wall of the groove, one side of an air rod movably connected with the air cylinder penetrates through the support, a connecting block is fixed to one side of the air rod movably connected with the air cylinder, and an arc-shaped plate is fixed to one side of the connecting block and attached to the outer wall of the safety valve body. The safety valve has the advantages that the air tightness of the safety valve body can be conveniently checked, and the safety valve body can be conveniently mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to an on-site off-line calibration device for safety valves. Background Art

[0002] A safety valve is a device used to control or regulate system pressure. It is usually used in liquid or gas systems to prevent pressure from exceeding the safety range and causing damage to the equipment or system. The safety valve can release excess fluid or gas when the set pressure is reached to ensure that the system remains at a safe level.

[0003] When checking the air tightness of the safety valve, it is necessary to connect the pipeline, and then pass the gas into the pipeline and introduce it into the safety valve for air tightness verification. However, the connection between the pipeline and the safety valve requires the use of a large number of bolts for limitation, and installation and disassembly are time-consuming and labor-intensive, with low work efficiency. Utility Model Content

[0004] The utility model aims to provide an on-site off-line calibration device for a safety valve, which has the advantages of being convenient for checking the air tightness of the safety valve body and being convenient for installation and disassembly of the safety valve body, and solves the problem that when checking the air tightness of the safety valve, it is necessary to connect a pipeline, and then pass gas into the pipeline to introduce the safety valve for air tightness calibration, but the connection between the pipeline and the safety valve requires the use of a large number of bolts for limitation, and the installation and disassembly is time-consuming and labor-intensive, and the work efficiency is low.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety valve on-site offline calibration device, comprising a workbench and an air duct, the workbench is fixed to the air duct, the upper surface of the air duct fits the safety valve body, long grooves are respectively provided on both sides of the upper surface of the workbench, a moving block is inserted into the long groove, a pillar is fixed on the upper surface of the moving block, a bracket is fixed on the top of the pillar, a groove is provided at the front end of the bracket, a cylinder is fixed on one side of the inner wall of the groove, one side of the gas rod movably connected to the cylinder passes through the bracket, a connecting block is fixed on one side of the gas rod movably connected to the cylinder, an arc plate is fixed on one side of the connecting block, and the arc plate fits the outer wall of the safety valve body.

[0006] Preferably, four legs in a rectangular array are fixed to the lower surface of the workbench. The workbench can be supported by the four legs so that the device can be placed stably as a whole.

[0007] Preferably, a control switch box is fixed at the front end of the workbench, and a display screen and buttons are sequentially embedded and installed at the front end of the control switch box from top to bottom. The start and stop of the motor and the cylinder can be controlled by the control switch box.

[0008] Preferably, a circular hole 1 is provided on the upper surface of the workbench, the bottom end of the air guide tube passes through the circular hole 1, and the outer wall of the air guide tube is fixed to the inner wall of the circular hole 1. The circular hole 1 facilitates the bottom end of the air guide tube to pass through and the air guide tube to be fixed.

[0009] Preferably, a threaded hole is provided on one side of the moving block, and two round holes are provided on both sides of the workbench, and motors are fixed on both sides of the workbench, and one side of the transmission shaft provided by the motor extends into the two round holes, and one side of the transmission shaft provided by the motor is fixed with a threaded rod, and one side of the threaded rod passes through the threaded hole and is threadedly connected. The threaded rod is fixed by the transmission shaft provided by the motor, which provides power for the rotation of the threaded rod, so that the arc plate can move as needed, so that the two arc plates can limit the safety valve body, and the safety valve body is tightly fitted with the air guide pipe, which is convenient for air tightness verification and convenient for installation and disassembly of the safety valve body.

[0010] Preferably, the width of the long grooves respectively opened on both sides of the upper surface of the workbench matches the width of the moving block. By matching the width of the long grooves with the width of the moving block, the long grooves can limit the moving block, preventing the threaded rod from rotating, and the moving block follows the rotation, which facilitates the movement of the moving block.

[0011] Preferably, a circular hole three is opened on one side of the inner wall of the groove, and one side of the gas rod movably connected to the cylinder passes through the circular hole three. The circular hole three facilitates the gas rod movably connected to the cylinder to pass through the bracket.

[0012] Preferably, the curvature of the curved plate matches the curvature of the lower end of the outer wall of the safety valve body. By matching the curvature of the curved plate with the curvature of the lower end of the outer wall of the safety valve body, the curved plate can fit tightly against the outer wall of the safety valve body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model provides long grooves on both sides of the upper surface of a workbench, in which moving blocks are inserted, a pillar is fixed on the upper surface of the moving block, a bracket is fixed on the top of the pillar, a groove is provided at the front end of the bracket, a cylinder is fixed on one side of the inner wall of the groove, one side of a gas rod movably connected to the cylinder passes through the bracket, a connecting block is fixed on one side of the gas rod movably connected to the cylinder, an arc plate is fixed on one side of the connecting block, the arc plate is fitted with the outer wall of the safety valve body, when it is necessary to calibrate the safety valve body, the safety valve body is placed on the air guide pipe, and then the motor is started so that the pillar, the bracket and the arc plate can be moved as needed, the arc plate is fitted with the outer wall of the safety valve body, so that the safety valve body is closely fitted with the air guide pipe, and then gas is poured into the air guide pipe, thereby achieving the effect of facilitating the air tightness calibration of the safety valve body and facilitating the installation and disassembly of the safety valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the workbench of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the bracket of the utility model;

[0018] Figure 4 It is a schematic diagram of the side structure of the safety valve body of the utility model.

[0019] In the figure: 1. support leg; 2. workbench; 3. support pillar; 4. bracket; 5. safety valve body; 6. motor; 7. control switch box; 8. air duct; 9. round hole one; 10. round hole two; 11. threaded hole; 12. long groove; 13. threaded rod; 14. moving block; 15. cylinder; 16. gas rod; 17. connecting block; 18. arc plate; 19. round hole three; 20. groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 The utility model provides an embodiment: an on-site offline calibration device for a safety valve, comprising a workbench 2 and an air duct 8, the workbench 2 is fixed to the air duct 8, four legs 1 in a rectangular array are fixed to the lower surface of the workbench 2, a control switch box 7 is fixed to the front end of the workbench 2, a display screen and buttons are sequentially embedded and installed on the front end of the control switch box 7 from top to bottom, a round hole 9 is opened on the upper surface of the workbench 2, the bottom end of the air duct 8 passes through the round hole 9, the outer wall of the air duct 8 is fixed to the inner wall of the round hole 9, the workbench 2 can be supported by the four legs 1, so that the overall placement of the device is stable, the start and stop of the motor 6 and the cylinder 15 can be controlled by the control switch box 7, the bottom end of the air duct 8 is convenient to pass through the round hole 9, and the air duct 8 is convenient to be fixed, and the upper surface of the air duct 8 fits the safety valve body 5.

[0022] Long grooves 12 are respectively provided on both sides of the upper surface of the workbench 2. The width of the long grooves 12 respectively provided on both sides of the upper surface of the workbench 2 matches the width of the moving block 14. By matching the width of the long grooves 12 with the width of the moving block 14, the long grooves 12 can limit the moving block 14 to prevent the threaded rod 13 from rotating. The moving block 14 rotates with it, which is convenient for the moving block 14 to move. The long grooves 12 are inserted into the moving block 14. A threaded hole 11 is provided on one side of the moving block 14. Round holes 10 are respectively provided on both sides of the workbench 2. Motors 6 are respectively fixed on both sides of the workbench 2. The transmission shaft of the motor 6 extends on one side. The motor 6 is inserted into the circular hole 10, and a threaded rod 13 is fixed on one side of the transmission shaft. One side of the threaded rod 13 passes through the threaded hole 11 and is threadedly connected. The threaded rod 13 is fixed by the transmission shaft of the motor 6, which provides power for the rotation of the threaded rod 13, so that the arc plate 18 can move as needed, so that the two arc plates 18 can limit the safety valve body 5, the safety valve body 5 and the air guide pipe 8 fit tightly, which is convenient for air tightness verification and the installation and disassembly of the safety valve body 5. The upper surface of the moving block 14 is fixed with a pillar 3, and the top of the pillar 3 is fixed with a bracket 4.

[0023] A groove 20 is provided at the front end of the bracket 4, and a cylinder 15 is fixed on one side of the inner wall of the groove 20. One side of the gas rod 16 movably connected to the cylinder 15 passes through the bracket 4. A circular hole three 19 is provided on one side of the inner wall of the groove 20. One side of the gas rod 16 movably connected to the cylinder 15 passes through the circular hole three 19. The circular hole three 19 facilitates the gas rod 16 movably connected to the cylinder 15 to pass through the bracket 4. A connecting block 17 is fixed on one side of the gas rod 16 movably connected to the cylinder 15. An arc plate 18 is fixed on one side of the connecting block 17. The bending curvature of the arc plate 18 matches the curvature of the lower end of the outer wall of the safety valve body 5. The arc plate 18 can fit the outer wall of the safety valve body 5 tightly by matching the bending curvature of the arc plate 18 with the curvature of the lower end of the outer wall of the safety valve body 5. The arc plate 18 fits the outer wall of the safety valve body 5.

[0024] When the air tightness check of the safety valve body 5 is required, the safety valve body 5 is placed on the upper surface of the air guide pipe 8, and then the control switch box 7 is operated to start the motor 6, the threaded rod 13 rotates, the moving block 14, the support 3 and the arc plate 18 can be moved as needed, and the arc plate 18 fits the lower end of the outer wall of the safety valve body 5, and then the cylinder 15 is started to make the gas rod 16 extend and retract, and the arc plate 18 fits the lower end of the outer wall of the safety valve body 5, so that the safety valve body 5 and the air guide pipe 8 fit tightly, and then gas is introduced into the air guide pipe 8. The air tightness check of the safety valve body 5 is convenient, and the installation and disassembly of the safety valve body 5 is convenient.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A safety valve on-site offline calibration device, comprising a workbench (2) and an air guide pipe (8), characterized in that: The workbench (2) is fixed to the air guide tube (8), the upper surface of the air guide tube (8) is in contact with the safety valve body (5), long grooves (12) are respectively provided on both sides of the upper surface of the workbench (2), a moving block (14) is inserted into the long groove (12), a pillar (3) is fixed to the upper surface of the moving block (14), a bracket (4) is fixed to the top of the pillar (3), a groove (20) is provided at the front end of the bracket (4), a cylinder (15) is fixed to one side of the inner wall of the groove (20), a gas rod (16) movably connected to the cylinder (15) passes through the bracket (4), a connecting block (17) is fixed to one side of the gas rod (16) movably connected to the cylinder (15), an arc plate (18) is fixed to one side of the connecting block (17), and the arc plate (18) is in contact with the outer wall of the safety valve body (5).

2. According to claim 1, a safety valve on-site offline calibration device is characterized in that: Four supporting legs (1) in a rectangular array are fixed to the lower surface of the workbench (2).

3. The on-site off-line calibration device for a safety valve according to claim 1, characterized in that: A control switch box (7) is fixed at the front end of the workbench (2), and a display screen and buttons are sequentially embedded and installed at the front end of the control switch box (7) from top to bottom.

4. The on-site off-line calibration device for a safety valve according to claim 1, characterized in that: A circular hole (9) is provided on the upper surface of the workbench (2), the bottom end of the air guide tube (8) passes through the circular hole (9), and the outer wall of the air guide tube (8) is fixed to the inner wall of the circular hole (9).

5. The on-site off-line calibration device for a safety valve according to claim 1, characterized in that: A threaded hole (11) is provided on one side of the moving block (14), and two round holes (10) are provided on both sides of the workbench (2). A motor (6) is fixed on both sides of the workbench (2), and one side of a transmission shaft provided on the motor (6) extends into the second round hole (10). A threaded rod (13) is fixed on one side of the transmission shaft provided on the motor (6), and one side of the threaded rod (13) passes through the threaded hole (11) and is threadedly connected.

6. The on-site off-line calibration device for a safety valve according to claim 5, characterized in that: The width of the long grooves (12) respectively opened on both sides of the upper surface of the workbench (2) matches the width of the moving block (14).

7. The on-site off-line calibration device for a safety valve according to claim 1, characterized in that: A circular hole three (19) is provided on one side of the inner wall of the groove (20), and one side of the gas rod (16) movably connected to the cylinder (15) passes through the circular hole three (19).

8. The on-site off-line calibration device for a safety valve according to claim 1, characterized in that: The curvature of the arc-shaped plate (18) matches the curvature of the lower end of the outer wall of the safety valve body (5).

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