Air pressure testing device for heptafluoropropane steel cylinder

Abstract

The utility model discloses an air pressure testing device for a heptafluoropropane steel cylinder, and relates to the technical field of heptafluoropropane steel cylinder manufacturing. The air pressure testing device for the heptafluoropropane steel cylinder comprises a base; the rotating seat is arranged on the base; an air pressure test cover. According to the heptafluoropropane steel cylinder air pressure testing device, the adjusting plate is separated from the sealing plate by intermittently rotating the adjusting screw rod, and in the sealing plate separation process, the counter-acting force generated by the high-strength abutting spring is reduced, so that the thrust applied to the sealing plate by the air pressure in the steel tank is larger than the counter-acting force generated by deformation of the high-strength abutting spring; when the counter-acting force generated by the high-strength abutting spring is balanced with the acting force generated by the internal pressure intensity of the steel cylinder again, the sealing plate is reset and sealed, stable pressure relief of the steel cylinder is achieved in a reciprocating mode, the pressure relief process is smoother, and the pressure relief effect is better. And the safety coefficient during pressure relief is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heptafluoro-propane steel cylinder manufacturing technical field, concretely is a heptafluoro-propane steel cylinder gas testing pressure device. BACKGROUND

[0002] Heptafluoro-propane is a clean extinguishing agent widely used in gas fire extinguishing system, has high efficiency, environmental protection, safety and so on, it will be usually stored in the steel cylinder after production, in order to guarantee that heptafluoro-propane does not appear leakage when storing, usually after production, the steel cylinder is sealed and detected by using gas pressure testing device, to ensure the sealing property.

[0003] In the prior art, such as the "heptafluoro-propane steel cylinder gas testing pressure device" disclosed in Chinese patent CN215510686U, the gas pressure test cover is fixedly connected on the upper surface of the base through welding, the movable push plate is movably connected on the upper surface of the base, the rear push mechanism is arranged at the rear of the base, the middle position of the adjusting screw is rotatably connected on the movable push plate through the bearing, and the inner end of the adjusting screw is screw transmission connected with the movable push plate, the gas cylinder is fixedly connected on the lower surface of the base, and the output end of the gas cylinder is fixedly connected with the lower end of the rear push mechanism, the base includes a side guide rod, the side guide rod is provided with two parts, the bottom of the two side guide rods is fixedly connected on the upper surface of the base, and the two side guide rods are parallel to each other.

[0004] As the above-mentioned utility model, although the sealing performance and positioning stability of the bottle body are enhanced, the measurement stability and precision are improved, but when the detection is completed, the pressure relief can only be directly discharged to the outside through the gas pressure test cover, because the gas pressure in the steel pipe is large during the gas pressure detection, the one-time pressure relief will produce a large impact force, which has a certain danger, resulting in a low safety factor during pressure relief. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a heptafluoro-propane steel cylinder gas pressure testing device to solve the problems in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a heptafluoro-propane steel cylinder gas testing pressure device, include: base, rotating seat is located on the base, gas pressure test cover, rotation is located in rotating seat, gas pressure test cover is used for connecting steel cylinder and carries out gas testing pressure, pressure relief cover, fixed communication on the gas pressure test cover, sealing plate, slidingly arranged in the pressure relief cover, for blocking gas, adjusting plate, slidingly arranged in the pressure relief cover, the adjusting plate is located in the side of sealing plate away from the gas pressure test cover, high strength pressure spring, be arranged between adjusting plate and sealing plate, adjusting screw, rotation is arranged in the pressure relief cover, the adjusting screw outer surface is with adjusting plate internal thread connection, servo motor, fixedly arranged on the pressure relief cover, the servo motor output end and adjusting screw one end transmission connection, pressure relief pipe, fixed communication on the pressure relief cover, the pressure relief pipe is isolated with the gas pressure test cover through the sealing plate under normal condition.

[0007] Preferably, it further includes: a cylinder, fixedly arranged on the base; a rear push plate, rotationally arranged at the telescopic end of the cylinder; a fixed clamping plate, fixedly arranged on the base; a movable clamping plate, slidingly arranged on the base; an adjusting screw, threadedly arranged on the base, one end of the adjusting screw being rotationally arranged on one side of the movable clamping plate, the adjusting screw being arranged to rotate, the movable clamping plate moving and fixing the steel cylinder by cooperating with the fixed clamping plate; and a roller, rotationally arranged on the clamping surface of the movable clamping plate and the fixed clamping plate, the surface of the roller being in close contact with the surface of the steel cylinder.

[0008] Preferably, it further includes: a plurality of T-shaped slide rods, fixedly arranged on the base, the inside of the movable clamping plate being slidingly arranged on the surface of the T-shaped slide rods.

[0009] Preferably, it further includes: a plurality of limiting blocks, fixedly arranged on the surface of the adjusting plate; a plurality of limiting grooves, opened on the inner surface of the pressure relief cover; and the outer surface of the limiting blocks being slidingly connected with the inside of the limiting grooves.

[0010] Preferably, it further includes: a limiting ring, fixedly arranged in the inside of the pressure relief cover, the surface of the limiting ring being in abutment with the surface of the sealing plate.

[0011] Preferably, it further includes: a sealing ring, fixedly arranged on the surface of the sealing plate, the surface of the sealing ring being in abutment with the inner surface of the pressure relief cover.

[0012] Preferably, it further includes: a blocking rod, fixedly arranged on the rotating seat; and a gas filling pipe, fixedly communicated on the gas pressure test cover, the gas filling pipe being blocked by the blocking rod in the process of rotating with the gas pressure test cover.

[0013] The utility model provides a heptafluoro-propane steel cylinder gas testing pressure device, has the following beneficial effects:

[0014] (1)The utility model discloses a sealing plate, the setting of adjusting plate, high -strength resistance pressure spring and adjusting screw can make adjusting plate and sealing plate separate through the intermittent rotation adjusting screw after the detection of gas pressure is completed, in the process of sealing plate separation, the reaction force of high -strength resistance pressure spring produces reduction, make the thrust that steel jar internal pressure exerts to sealing plate is greater than the reaction force of high -strength resistance pressure spring deformation produces, make sealing plate in pressure relief cover sliding and let pressure relief pipe and steel bottle inside intercommunication, make gas flow, when the reaction force of high -strength resistance pressure spring produces again and the force of steel bottle inside pressure generation balance, sealing plate resets the sealing, and this reciprocating realizes the stable pressure relief of steel bottle, and the safety factor of pressure relief process is more gentle, improved when pressure relief.

[0015] (2)The utility model discloses through the close fixed setting of gyro wheel and steel bottle, after the completion of steel bottle punch, can rotate, make soap water can evenly be applied to the surface of steel bottle, convenient for detecting the air leakage position, improved the work efficiency when subsequent steel bottle repair. ACCURACY

[0016] Figure 1 It is whole structure schematic diagram for the utility model's steel bottle installation;

[0017] Figure 2 It is whole structure schematic diagram for the utility model;

[0018] Figure 3 It is the schematic diagram of structure between the utility model's rotary seat and pressure test cover;

[0019] Figure 4 It is the exploded schematic diagram of internal structure of the utility model's pressure relief cover;

[0020] Figure 5 It is the schematic diagram of structure on the utility model's dynamic clamping plate.

[0021] In the drawing: 1, base;2, rotary seat;3, pressure test cover;4, pressure relief cover;5, sealing plate;6, adjusting plate;7, high -strength resistance pressure spring;8, adjusting screw;9, servo motor;10, limit block;11, limit slot;12, pressure relief pipe;13, limit ring;14, sealing ring;15, fixed clamping plate;16, dynamic clamping plate;17, adjusting screw;18, T -type slide bar;19, air cylinder;20, back plate;21, stop lever;22, gas pipe;23, gyro wheel. SPECIFIC IMPLEMENTATION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in connection with the drawings in the embodiments of the utility model.

[0023] The utility model provides technical scheme: refer to 1-5, in this embodiment, a heptafluoro-propane steel cylinder gas testing pressure device, it includes: base 1, rotating seat 2 is set up on base 1, gas pressure test cover 3, rotating setting in rotating seat 2, gas pressure test cover 3 is used for connecting steel cylinder and carries out gas pressure test, pressure relief cover 4 is fixedly connected on gas pressure test cover 3, sealing plate 5, slidingly setting in pressure relief cover 4 inside, is used for blocking gas, adjusting plate 6, slidingly setting in pressure relief cover 4 inside, adjusting plate 6 is located sealing plate 5 far from the one side of gas pressure test cover 3, high strength counter pressure spring 7 is set between adjusting plate 6 and sealing plate 5, adjusting screw 8, rotating setting in pressure relief cover 4 inside, adjusting screw 8 outer surface and adjusting plate 6 inside screw thread connection, servo motor 9 is fixedly set up on pressure relief cover 4, and servo motor 9 output end is transmission connection with adjusting screw 8 one end, pressure relief pipe 12 is fixedly connected on pressure relief cover 4, and pressure relief pipe 12 is isolated with gas pressure test cover 3 under normal condition through sealing plate 5, wherein, by setting sealing plate 5, can carry out sealing under the action of high strength counter pressure spring 7, by setting adjusting plate 6, can change the counter force of high strength counter pressure spring 7 by the change of position, thereby can realize the pressure relief and sealing function of sealing plate 5, by setting adjusting screw 8, can adjust the position of adjusting plate 6.

[0024] Still include: cylinder 19, fixedly set up on base 1, pushback plate 20, rotating setting in cylinder 19 telescopic end, fixedly set up on base 1 with fixed clamping plate 15, slidingly set up on base 1 with dynamic clamping plate 16, adjusting screw 17, screw setting on base 1, adjusting screw 17 one end and dynamic clamping plate 16 one side rotating setting, adjusting screw 17 is set as rotating, and dynamic clamping plate 16 moves and is fixed with steel cylinder through the cooperation of fixed clamping plate 15, roller 23, rotating setting on the clamping surface of dynamic clamping plate 16 and fixed clamping plate 15, the surface of roller 23 and the surface of steel cylinder are in close contact, by setting pushback plate 20, can be closely connected with gas pressure test cover 3 under the action of cylinder 19, prevent the occurrence of gas leakage, by setting roller 23, can still rotate after steel cylinder is fixed, facilitate the steel cylinder gas leakage position to be marked, be convenient for subsequent maintenance.

[0025] Still include: several T type slide bars 18, fixedly set up on base 1, the inside of dynamic clamping plate 16 and the surface of T type slide bar 18 slidingly set, for positioning guide to dynamic clamping plate 16, improve the stability of clamping.

[0026] Still include: several limit blocks 10, fixedly set up on the surface of adjusting plate 6, several limit grooves 11 are set up in the inner surface of pressure relief cover 4, the outer surface of limit block 10 and the inside of limit groove 11 slidingly connect, can limit adjusting plate 6, prevent its rotating with adjusting screw 8 in the process of adjusting.

[0027] Further comprising: a limiting ring 13 fixedly arranged in the pressure relief cover 4, the surface of the limiting ring 13 abutting the surface of the sealing plate 5, for limiting the moving range of the sealing plate 5, preventing the sealing plate 5 from separating from the pressure relief cover 4.

[0028] Further comprising: a sealing ring 14 fixedly arranged on the surface of the sealing plate 5, the surface of the sealing ring 14 abutting the inner surface of the pressure relief cover 4, for improving the sealing property, preventing gas leakage.

[0029] Further comprising: a blocking rod 21 fixedly arranged on the rotating base 2; and a gas filling pipe 22 fixedly connected to the gas pressure test cover 3, the gas filling pipe 22 being blocked by the blocking rod 21 during the rotation of the gas pressure test cover 3.

[0030] The utility model provides a heptafluoro-propane cylinder gas pressure testing device, and the specific working principle is as follows:

[0031] When the gas pressure testing is carried out, the staff puts the cylinder to be detected between the fixed clamping plate 15 and the movable clamping plate 16, then rotates the adjusting screw rod 17, makes the movable clamping plate 16 close to the cylinder, positions the cylinder, then starts the cylinder 19, the cylinder 19 drives the back plate 20 to move and pushes the bottle mouth of the cylinder into the gas pressure test cover 3 and seals and fixes, then rotates the adjusting screw rod 17 again to make the surface of the cylinder and the surface of the roller 23 closely adhere to each other, completes the fixation of the cylinder, then fills the gas into the cylinder from the gas filling pipe 22 to carry out the pressure testing, if the cylinder appears the gas leakage and the like, the staff rotates the cylinder and smears the soapy water on the surface, marks the gas leakage position, after the gas pressure testing is completed, the staff starts the servo motor 9, the servo motor 9 drives the adjusting screw rod 8 to intermittently rotate, the adjusting plate 6 is separated from the sealing plate 5 under the driving of the adjusting screw rod 8, in the process that the sealing plate 5 is separated, the reaction force generated by the high-strength pressing spring 7 is reduced, so that the pushing force exerted on the sealing plate 5 by the gas pressure in the steel tank is greater than the reaction force generated by the deformation of the high-strength pressing spring 7, the sealing plate 5 slides in the pressure relief cover 4 and makes the pressure relief pipe 12 communicate with the inside of the cylinder, so that the gas flows out, when the reaction force generated by the high-strength pressing spring 7 and the force generated by the pressure in the cylinder are balanced again, the sealing plate 5 resets and seals, so as to realize the stable pressure relief of the cylinder reciprocatingly, after the pressure relief is completed, the staff takes down the cylinder and carries out the next detection.

[0032] Although the embodiments of the utility model have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A heptafluoro-propane cylinder gas testing pressure device characterized by: It includes: Base (1); Rotary seat (2) is arranged on the base (1); The air pressure test cover (3) is rotatably arranged in the rotary seat (2), and the air pressure test cover (3) is used for connecting the steel cylinder and testing the air pressure; The pressure relief cover (4) is fixedly connected with the air pressure test cover (3); The sealing plate (5) is slidably arranged in the pressure relief cover (4), and is used for blocking the gas; The adjusting plate (6) is slidably arranged in the pressure relief cover (4), and the adjusting plate (6) is located on the side of the sealing plate (5) away from the air pressure test cover (3); High-strength pressing spring (7) is arranged between the adjusting plate (6) and the sealing plate (5); The adjusting screw (8) is rotatably arranged in the pressure relief cover (4), and the outer surface of the adjusting screw (8) is threadedly connected with the inner surface of the adjusting plate (6); The servo motor (9) is fixedly arranged on the pressure relief cover (4), and the output end of the servo motor (9) is in transmission connection with one end of the adjusting screw (8); The pressure relief pipe (12) is fixedly connected with the pressure relief cover (4), and the pressure relief pipe (12) is isolated from the air pressure test cover (3) by the sealing plate (5) in the normal state.

2. A heptafluoropropane cylinder gas testing pressure device according to claim 1, characterized in that: It also includes: Air cylinder (19) is fixedly arranged on the base (1); The push plate (20) is rotatably arranged on the telescopic end of the air cylinder (19); The fixed clamping plate (15) is fixedly arranged on the base (1); The movable clamping plate (16) is slidably arranged on the base (1); The adjusting screw (17) is threadedly arranged on the base (1), one end of the adjusting screw (17) is rotatably arranged on one side of the movable clamping plate (16), and the adjusting screw (17) is arranged to move the movable clamping plate (16) and fix the steel cylinder by cooperating with the fixed clamping plate (15) when rotating; The roller (23) is rotatably arranged on the clamping surface of the movable clamping plate (16) and the fixed clamping plate (15), and the surface of the roller (23) is in close contact with the surface of the steel cylinder.

3. A heptafluoropropane cylinder gas testing pressure device according to claim 2, wherein: It also includes: A plurality of T-shaped slide rods (18) are fixedly arranged on the base (1), and the inner surface of the movable clamping plate (16) is slidably arranged on the surface of the T-shaped slide rod (18).

4. A heptafluoropropane cylinder gas testing pressure device according to claim 1, wherein: It also includes: A plurality of limiting blocks (10) are fixedly arranged on the surface of the adjusting plate (6); A plurality of limiting grooves (11) are arranged on the inner surface of the pressure relief cover (4), and the outer surface of the limiting block (10) is in sliding connection with the inner surface of the limiting groove (11).

5. A heptafluoropropane cylinder gas testing pressure device according to claim 1, wherein: It also includes: The limiting ring (13) is fixedly arranged in the pressure relief cover (4), and the surface of the limiting ring (13) is in abutment with the surface of the sealing plate (5).

6. A heptafluoropropane cylinder gas testing pressure device according to claim 1, wherein: It also includes: The sealing ring (14) is fixedly arranged on the surface of the sealing plate (5), and the surface of the sealing ring (14) is in abutment with the inner surface of the pressure relief cover (4).

7. A heptafluoropropane cylinder gas testing pressure device according to claim 1, wherein: It also includes: The stop rod (21) is fixedly arranged on the rotary seat (2); The gas filling pipe (22) is fixedly connected with the air pressure test cover (3), and the gas filling pipe (22) is blocked by the stop rod (21) during rotation with the air pressure test cover (3).

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