CN210513952U

CN210513952U - Gas cylinder chuck for hydrostatic test

Info

Publication number: CN210513952U
Application number: CN201921230452.3U
Authority: CN
Inventors: 何汉超
Original assignee: Yuyao Chaocheng Machinery Manufacturing Co ltd
Current assignee: Yuyao Chaocheng Machinery Manufacturing Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-12
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a gas cylinder chuck for hydrostatic test, which relates to the technical field of gas cylinder hydrostatic testing equipment; including the main part, the main shaft, the bottom is used for connecting the die body of bottleneck, the main shaft pass the main part and with main part sliding connection, the main shaft bottom is equipped with and is used for inserting the slot of establishing the die body, the slot lateral wall is inserted and is equipped with a plurality of push rods, the main part bottom is equipped with the direction slope that is used for with push rod direction die body direction at the push rod corresponding position, the outer fringe face of die body is equipped with the second direction slope with die body direction main shaft direction under the promotion of push rod, be equipped with the packing ring in the slot, the die body top is supported and is leaned on the packing ring, be equipped with the water route that is used for with water direction die body packing ring on the main shaft. The utility model discloses the rigid coupling gas cylinder does not need the air cylinder of holding down for the gas cylinder can be in and carry out hydrostatic test under the free body state.

Description

Gas cylinder chuck for hydrostatic test

Technical Field

The utility model belongs to the technical field of gas cylinder water pressure check out test set, in particular to gas cylinder chuck for hydrostatic test.

Background

At present, during a hydraulic pressure test of a gas cylinder, the gas cylinder is usually placed on a working platform, then a gasket is placed between a water gun and the gas cylinder, and then the water gun tightly presses the gas cylinder to pressurize; this type of seal has significant disadvantages: at the moment, the gas cylinder bears the pressure of the water gun besides the water pressure; namely, the bottle body can not be in a free body state, and the standard of the national standard gas cylinder hydrostatic test method GB/T9251-.

Disclosure of Invention

The utility model aims at overcoming among the prior art sealed mode and can not making the gas cylinder be in the shortcoming of free body state, propose a gas cylinder chuck for hydrostatic test, need not push down the gas cylinder for the gas cylinder can be in and carry out hydrostatic test under the free body state, accord with the national standard gas cylinder hydrostatic test method GB/T9251 of the people's republic of China and give other words 2011 the standard of 5.1.4.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a gas cylinder chuck for hydrostatic test, includes main part, main shaft, the bottom is used for connecting the die body of bottleneck, the main shaft passes the main part and with main part sliding connection, the main shaft bottom is equipped with the slot that is used for inserting the die body, a plurality of push rods are inserted to the slot lateral wall, the main part bottom is equipped with the direction slope that is used for leading the push rod to the die body direction at the push rod corresponding position, the outer fringe face of die body is equipped with the second direction slope that leads the die body to the main shaft direction under the promotion of push rod, be equipped with the packing ring in the slot, the die body top is supported and is leaned on the packing ring, be equipped with the water route that is used for leading water to the die body packing ring on the main shaft, be equipped with the drive arrangement who is used for. The bottom end of the die body is connected with the bottle opening of the gas bottle, the slot is inserted into the top end of the die body, then the driving device operates, the main shaft moves upwards, the die body moves towards the direction of the main body, then the push rod moves towards the direction of the die body under the action of the guide slope, the end part of the push rod is abutted against the second guide slope, the die body is ejected towards the direction of the gasket under the action of the second guide slope, finally the gasket is ejected tightly by the die body, and then the water pump pumps water into the water channel to pressurize the gas bottle.

Preferably, the driving device comprises an oil cavity, a piston which is located in the oil cavity and matched with the oil cavity, a first oil way communicated with the oil cavity, and a second oil way communicated with the oil cavity, wherein the oil cavity is located in the main body, the piston is connected with the oil cavity in a sliding mode, the piston is fixedly connected with the main shaft, and the first oil way and the second oil way are located on two opposite sides of the piston. The pressure difference of the oil cavity on the upper side and the lower side of the piston is changed, so that the up-and-down movement of the main shaft can be controlled.

Preferably, the main body comprises an upper oil cylinder body, a lower oil cylinder body fixedly connected below the upper oil cylinder body and a guide sleeve fixedly connected below the lower oil cylinder body, a groove is formed in one side, close to the upper oil cylinder body, of the lower oil cylinder body, a boss is arranged at the position, corresponding to the groove, of the upper oil cylinder body and embedded into the groove to form an oil cavity, a sealing ring is arranged on the outer edge of the boss, and the guide slope is located on the inner edge of the bottom end of the guide sleeve. The sealing ring has the sealing effect, and the main body is divided into three parts, so that the production is convenient.

Preferably, a sealing ring is arranged at the sliding connection position of the upper oil cylinder body and the main shaft, and a sealing ring is arranged at the sliding connection position of the lower oil cylinder body and the main shaft. The sealing effect is increased.

Preferably, the bottom end of the mold body is inserted into the bottle mouth to be in threaded fit with the bottle mouth. The threaded connection is convenient, and the sealing effect is good.

Preferably, one end of the push rod, which is far away from the guide slope, is provided with a push sheet, and one side of the push sheet, which is far away from the guide slope, is matched with the second guide slope. And the push sheet is added, so that the pressure on the second guide slope can be reduced, and the second guide slope is protected from being damaged.

Preferably, a second gas outlet for discharging gas in the gas cylinder is arranged on the die body, a gas pipe is connected to the second gas outlet, one end, away from the die body, of the gas pipe is connected with a valve body, a cavity is arranged in the valve body, a floating ball capable of floating up and down along the cavity is arranged in the cavity, the top end of the cavity is hemispherical, a gas outlet hole is formed in the top end of the cavity, a gas inlet hole connected with the gas pipe is formed in the bottom end of the cavity, a branch pipeline is arranged in the valve body, one end of the branch pipeline is connected with the gas inlet hole, and. Water is directly filled into the gas cylinder without pre-filling water and then pressurized.

The utility model has the advantages that: the utility model provides a gas cylinder chuck for hydrostatic test does not need the air cylinder of holding down for the gas cylinder can be in and carry out hydrostatic test under the free body state, accords with the national standard gas cylinder hydrostatic test method GB/T9251 of the people's republic of China and aforementioned 2011 standard of number 5.1.4. In addition, water is directly filled and then pressurized without being filled in advance, so that the efficiency is high.

Drawings

FIG. 1 is a schematic view of example 1;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic view of the mold body after being connected with the gas cylinder;

FIG. 4 is a schematic view of a mold body inserted into a slot;

FIG. 5 is a schematic view of example 2;

FIG. 6 is a diagram of the gas movement pathway in the valve body;

FIG. 7 is a schematic view of water entering the valve body;

FIG. 8 is a schematic view showing the air outlet being blocked by the float ball.

In the figure: the main body 1, the main shaft 2, the slot 3, the die body 4, the push rod 5, the guide slope 7, the second guide slope 8, the bottle opening 9, the gasket 10, the water path 11, the second water path 12, the gas cylinder 13, the oil chamber 14, the piston 15, the first oil path 16, the second oil path 17, the upper cylinder body 18, the lower cylinder body 19, the guide sleeve 20, the boss 21, the seal ring 22, the push piece 23, the gas pipe 24, the valve body 25, the cavity 26, the floating ball 27, the gas outlet 28, the branch line 30, the second gas outlet 31 and the gas inlet 32.

Detailed Description

The invention will be further explained in detail with reference to the drawings and the following detailed description:

example 1:

fig. 1 to 4 show a gas cylinder chuck for a hydrostatic test, which includes a main body 1, a main shaft 2, and a mold body 4 having a bottom end for connecting a cylinder opening 9, wherein the bottom end of the mold body 4 is inserted into the cylinder opening 9 and is in threaded fit with the cylinder opening 9; the main shaft 2 penetrates through the main body 1 and is connected with the main body 1 in a sliding mode, a slot 3 for inserting a mold body 4 is formed in the bottom end of the main shaft 2, a plurality of push rods 5 are inserted into the side wall of the slot 3, a guide slope 7 for guiding the push rods 5 to the direction of the mold body 4 is arranged at the bottom end of the main body 1 at the position corresponding to the push rods 5, a push sheet 23 is arranged at one end, far away from the guide slope 7, of each push rod 5, and one side, far away from the guide slope 7, of each push sheet 23 is matched; the outer edge surface of the die body 4 is provided with a second guide slope 8 which guides the die body 4 to the direction of the main shaft 2 under the pushing of the push rod 5, a gasket 10 is arranged in the slot 3, the top end of the die body 4 is abutted against the gasket 10, the main shaft 2 is provided with a water path 11 which is used for guiding water to the gasket 10 of the die body 4, the die body 4 is provided with a second water path 12 which is used for guiding water from the gasket 10 to the inside of the gas cylinder 13, and the main body 1 is provided with a driving device which is used for enabling the main shaft 2 and the main body 1 to; the driving device comprises an oil cavity 14, a piston 15 which is positioned in the oil cavity 14 and is matched with the oil cavity 14, a first oil way 16 communicated with the oil cavity 14, and a second oil way 17 communicated with the oil cavity 14, wherein the oil cavity 14 is positioned in the main body 1, the piston 15 is in sliding connection with the oil cavity 14, the piston 15 is fixedly connected with the main shaft 2, and the first oil way 16 and the second oil way 17 are positioned on two opposite sides of the piston 15; the main body 1 comprises an oil cylinder upper body 18, an oil cylinder lower body 19 fixedly connected below the oil cylinder upper body 18 and a guide sleeve 20 fixedly connected below the oil cylinder lower body 19, wherein a groove is formed in one side, close to the oil cylinder upper body 18, of the oil cylinder lower body 19, a boss 21 is arranged at the position, corresponding to the groove, of the oil cylinder upper body 18, the boss 21 is embedded into the groove to form an oil cavity 14, a sealing ring 22 is arranged on the outer edge of the boss 21, and the guide slope 7 is located on the inner edge of the bottom end of the guide; a sealing ring 22 is arranged at the sliding connection position of the oil cylinder upper body 18 and the main shaft 2, and a sealing ring 22 is arranged at the sliding connection position of the oil cylinder lower body 19 and the main shaft 2.

The use process of the embodiment is as follows:

filling water into the gas cylinder 13, then matching the mouth of the gas cylinder with the bottom end of the die body 4 through threads, then inserting the top end of the die body 4 into the slot 3, assuming that the second oil path 17 is located below the piston 15, the first oil path 16 is located above the piston 15, at the moment, the oil pump pumps oil to the second oil path 17, the oil above the piston 15 goes out of the first oil path 16, the spindle 2 moves upwards, the push rod 5 moves towards the die body 4 under the action of the guide slope 7, the push sheet 23 abuts against the second guide slope 8, the die body 4 moves upwards under the action of the second guide slope 8, the gasket 10 is pressed tightly, at the moment, the water pump pumps water to the top end of the water path 11, and then the water passes through the gasket 10 and flows into the second water path 12 to pressurize the water in the gas cylinder 13, so as to perform a hydraulic pressure.

Example 2:

fig. 5 to 8 show: this embodiment is substantially the same as embodiment 1 except that: the air pipe 24 is connected to the die body 4, one end, far away from the die body 4, of the air pipe 24 is connected with a valve body 25, a cavity 26 is arranged in the valve body 25, a floating ball 27 capable of floating up and down along the cavity 26 is arranged in the cavity 26, the top end of the cavity 26 is hemispherical, an air outlet hole 28 is formed in the top end of the cavity 26, an air inlet hole 32 connected with the air pipe 24 is formed in the bottom end of the cavity 26, a branch pipeline 30 is arranged in the valve body 25, one end of the branch pipeline 30 is connected with the air inlet hole 32, and the other.

The use process of the embodiment is as follows:

this embodiment is used substantially the same as embodiment 1, except that: need not water in advance, after fixing gas cylinder 13, with the water pump direct toward gas cylinder 13 in with slower speed pressurized water, gas in gas cylinder 13 is pressed out, floater 27 is under the effect of gravity this moment, be located cavity 26 bottom, branch pipeline 30's both ends are located the upper and lower both sides of floater 27, gas is from second gas outlet 31 through trachea 24, inlet port 32, branch pipeline 30, cavity 26, finally discharge through venthole 28, after gas cylinder 13 water-logging has been full, slowly be full of water in the cavity 26, floater 27 floats on, final floater 27 pushes up on the venthole, branch pipeline 30 both ends all are located floater 27 below, the water pump pressurization this moment, gas cylinder 13 internal pressure increase, floater 27's existence water can not flow out, pressure can not reduce.

Claims

1. The utility model provides a gas cylinder chuck for hydrostatic test, its characterized in that, includes main part, main shaft, the bottom is used for connecting the die body of bottleneck, the main shaft passes the main part and with main part sliding connection, the main shaft bottom is equipped with the slot that is used for inserting the die body, a plurality of push rods are inserted to the slot lateral wall, the main part bottom is equipped with the direction slope that is used for leading the die body direction with the push rod in the push rod corresponding position, the outer fringe face of die body is equipped with the second direction slope that leads the die body direction main shaft direction under the promotion of push rod, be equipped with the packing ring in the slot, the die body top is supported and is leaned on the packing ring, be equipped with the water route that is used for leading water to the die body packing ring on the main shaft, be equipped with the drive arrangement that is used for.

2. The gas cylinder chuck for the hydrostatic test according to claim 1, wherein the driving device includes an oil chamber, a piston disposed in the oil chamber and adapted to the oil chamber, a first oil passage communicating with the oil chamber, and a second oil passage communicating with the oil chamber, the oil chamber is disposed in the main body, the piston is slidably connected to the oil chamber, the piston is fixedly connected to the spindle, and the first oil passage and the second oil passage are disposed on opposite sides of the piston.

3. The gas cylinder chuck for hydrostatic test of claim 2, wherein the main body comprises an upper cylinder body, a lower cylinder body fixed below the upper cylinder body, and a guide sleeve fixed below the lower cylinder body, the lower cylinder body has a groove on one side thereof adjacent to the upper cylinder body, the upper cylinder body has a boss at a position corresponding to the groove, the boss is embedded in the groove to form an oil cavity, the boss has a seal ring on its outer edge, and the guide slope is located on the inner edge of the bottom end of the guide sleeve.

4. The gas cylinder chuck for hydrostatic test according to claim 3, wherein the sliding connection between the upper body of the cylinder and the spindle is provided with a sealing ring, and the sliding connection between the lower body of the cylinder and the spindle is provided with a sealing ring.

5. The gas cylinder chuck for the hydrostatic test according to claim 1, wherein the bottom end of the mold body is inserted into the cylinder opening to be in threaded engagement with the cylinder opening.

6. The gas cylinder chuck for the hydrostatic test according to claim 1, 2, 3, 4 or 5, wherein the end of the push rod away from the guide slope is provided with a push piece, and one side of the push piece away from the guide slope is matched with the second guide slope.

7. The gas cylinder chuck for the hydrostatic test according to claim 1, wherein the mold body is provided with a second gas outlet for discharging gas in the gas cylinder, the second gas outlet is connected with a gas pipe, one end of the gas pipe away from the mold body is connected with a valve body, a cavity is arranged in the valve body, a floating ball capable of floating up and down along the cavity is arranged in the cavity, the top end of the cavity is in a hemispherical shape, the top end of the cavity is provided with a gas outlet, the bottom end of the cavity is provided with a gas inlet connected with the gas pipe, a branch pipeline is arranged in the valve body, one end of the branch pipeline is connected with the gas inlet, and the other end of the branch.