CN111272374A - Quick air bleeder of pneumatic type impact table - Google Patents

Abstract

The invention provides a quick deflation device for a pneumatic impact table, the quick deflation device comprises an air bag, an air bag upper plate connected to the upper side of the air bag, an air bag lower plate connected to the lower side of the air bag, and an air bag arranged on the air bag. The airbag sealing plate on the upper side of the plate, the airbag sealing plate is arranged on the lower side of the lower cover of the impact cylinder, and is used to seal the lower end opening of the lower cavity of the impact cylinder, and the airbag sealing plate can be charged and discharged with the airbag The air moves up and down. The rapid air release device of the pneumatic impact table of the present invention can prevent the phenomenon of air blocking in the lower cavity of the impact cylinder when the table top impacts at high speed, realize the function of rapid gas release, make the table top fall more smoothly, and the impact energy is larger.

Description

A rapid deflation device for a pneumatic impact table

technical field

The invention relates to an impact test of a mechanical environment test technology, in particular to a rapid deflation device of a pneumatic impact table.

Background technique

Pneumatic impact test equipment is mainly used in the mechanical environment test of products. By simulating the impact environment that the product may suffer during use, loading and unloading, and transportation, the functional reliability and structural integrity of the product under this impact environment are assessed.

Generally, the gas of the pneumatic impact test equipment passes through the intake valve and the exhaust valve to realize the intake and exhaust of the impact process, but the high-acceleration pneumatic vertical impact table is driven by full air pressure. During the impact process, the impact energy is very high. Large and fast, the common quick exhaust valve port exhaust can no longer meet the requirements.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a rapid deflation device for a pneumatic impact table.

In order to solve the above technical problems, the present invention provides a rapid deflation device for a pneumatic impact table, the rapid deflation device includes an air bag, an air bag upper plate connected to the upper side of the air bag, and an air bag lower plate connected to the lower side of the air bag. The airbag sealing plate is arranged on the upper side of the upper plate of the airbag, the airbag sealing plate is arranged on the lower side of the lower cover of the impact cylinder, and is used to seal the lower end opening of the lower cavity of the impact cylinder. The inflation and deflation of the air bag described above move up and down.

Preferably, a pilot quick exhaust valve for deflating the airbag is also installed on the lower plate of the airbag, and the quick exhaust valve is used to exhaust the airbag when the impact table falls.

Preferably, a plurality of springs are further arranged between the lower cover of the impact cylinder and the upper plate of the airbag, the upper ends of the springs act on the lower cover of the impact cylinder, and the lower ends of the springs act on the lower ends of the springs. In the airbag upper plate, when the airbag is in an inflated state, the airbag sealing plate seals the lower chamber of the impact cylinder, and the spring is in a compressed state.

Preferably, the rapid deflation device further comprises a plurality of airbag pull rods, the upper end of the airbag pull rod is connected to the lower cover of the impact cylinder, and the lower end of the airbag pull rod is fixedly connected to the airbag The lower plate, the airbag pull rod passes through the airbag upper plate, and the airbag upper plate can slide up and down along the airbag pull rod.

Preferably, a plurality of the airbag pull rods are arranged along the circumferential direction of the airbag, and the spring is sleeved on the airbag pull rods.

Preferably, the pilot rapid exhaust valve is controlled by a solenoid valve, and the solenoid valve is used to control the pilot rapid exhaust valve to deflate the airbag when the impact table falls.

Preferably, the upper part of the airbag is connected to the airbag upper plate by screws, the airbag upper plate is connected to the airbag sealing plate by screws, and the lower part of the airbag is connected to the airbag lower plate by screws.

The rapid air release device of the pneumatic impact table of the present invention can prevent the phenomenon of air blockage in the lower cavity of the impact cylinder when the table top impacts at high speed, realize the function of rapid gas release, make the table top fall more smoothly, and the impact energy is larger.

Description of drawings

FIG. 1 is a schematic structural diagram of the rapid degassing device of the present application.

Among them: 1. Impact cylinder lower cover; 2. Spring; 3. Airbag sealing plate; 4. Pilot quick exhaust valve; 5. Airbag lower plate; 6. Airbag; 7. Airbag upper plate; 8. Airbag pull rod; 9. Inflatable port in the lower cavity; 10. The lower cavity of the impact cylinder.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

As shown in FIG. 1 , a rapid deflation device for a pneumatic impact table is provided for the present invention. The rapid deflation device includes an airbag 6 , an airbag upper plate 7 connected to the upper side of the airbag 6 , and an airbag 6 connected to the airbag 6 . The airbag lower plate 5 on the lower side and the airbag sealing plate 3 arranged on the upper side of the airbag upper plate 7, the airbag sealing plate 3 is arranged on the lower side of the lower cover 1 of the impact cylinder, and is used for sealing the lower end of the lower cavity 10 of the impact cylinder Opening, the airbag sealing plate 3 can move up and down with the inflation and deflation of the airbag 6 .

The airbag lower plate 5 is also installed with a pilot quick exhaust valve 4 for deflating the airbag 6, and the quick exhaust valve is used for exhausting the airbag 6 when the impact table falls. The pilot rapid exhaust valve 4 is controlled by a solenoid valve, and the solenoid valve is used to control the pilot rapid exhaust valve 4 to deflate the airbag 6 when the impact table falls.

A plurality of springs 2 are also arranged between the lower cover 1 of the impact cylinder and the upper plate 7 of the airbag. The upper ends of the springs 2 act on the lower cover 1 of the impact cylinder, and the lower ends of the springs 2 Acting on the airbag upper plate 7, when the airbag 6 is in an inflated state, the airbag sealing plate 3 seals the lower chamber 10 of the impact cylinder, and the spring 2 is in a compressed state. The rapid deflation device further includes a plurality of airbag pull rods 8, the upper ends of the airbag pull rods 8 are connected to the impact cylinder lower cover 1, and the lower ends of the airbag pull rods 8 are fixedly connected to the In the airbag lower plate 5 , the airbag pull rod 8 passes through the airbag upper plate 7 , and the airbag upper plate 7 can slide up and down along the airbag pull rod 8 . A plurality of the airbag pull rods 8 are arranged along the circumferential direction of the airbag 6 , and the spring 2 is sleeved on the airbag pull rod 8 . Guarantee the stability of the overall structure of the rapid air release device.

The realization process of rapid deflation: when the impact table falls, the pilot rapid exhaust valve 4 exhausts the airbag 6, and the air pressure in the airbag 6 decreases. The sealing plate 3 is separated from the lower cover 1 of the impact cylinder, and exhausts the lower chamber 10 of the impact cylinder.

If the spring 2 is not provided, when the airbag 6 and the lower chamber 10 of the impact cylinder are exhausted at the same time, the pressure inside the two will be balanced again at a certain time of exhausting, which will lead to the separation of the airbag sealing plate 3 and the lower cover 1 of the impact cylinder. The opening cannot be fully opened, and the gas in the lower chamber 10 of the impact cylinder cannot be released quickly. Now due to the action of the spring 2, when the airbag 6 is inflated, the spring 2 will receive an upward pre-pressure. When the airbag 6 is exhausted, the spring 2 releases the pre-pressure, and the spring 2 applies a downward pressure to the upper plate 7 of the airbag. The opening of the separation between the airbag sealing plate 3 and the lower cover 1 of the impact cylinder is enlarged, which can ensure the rapid discharge of the gas in the lower cavity 10 of the impact cylinder.

The rapid air release device of the pneumatic impact table of the present invention can prevent the air blocking phenomenon in the lower chamber 10 of the impact cylinder when the table top impacts at high speed, realize the function of rapid gas release, make the table top fall more smoothly, and the impact energy is larger.

The above-mentioned embodiments are only preferred embodiments to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims (7)

1. The utility model provides a quick bleeder of platform is strikeed to pneumatic type, its characterized in that, quick bleeder include the gasbag, connect in the gasbag upper plate of gasbag upside, connect in the gasbag hypoplastron of gasbag downside, locate the gasbag closing plate of gasbag upper plate upside, the gasbag closing plate locate the downside that strikes jar lower cover for the lower extreme opening of sealed impact jar cavity of resorption, the gasbag closing plate can follow the gasbag fill gassing and reciprocate.

2. A quick deflation device as claimed in claim 1 wherein the lower panel of the bladder is further provided with a pilot quick exhaust valve for deflating the bladder, said quick exhaust valve being adapted to exhaust the bladder when the impact platform falls.

3. A quick deflation device as claimed in claim 1 wherein a plurality of springs are provided between the lower cover of the impact cylinder and the upper plate of the bladder, the upper ends of the springs acting on the lower cover of the impact cylinder and the lower ends of the springs acting on the upper plate of the bladder, the sealing plate of the bladder sealing the lower chamber of the impact cylinder when the bladder is in the inflated condition, the springs being in the compressed condition.

4. A quick deflation device as claimed in claim 3 further comprising a plurality of air bag tie rods, wherein the upper ends of the air bag tie rods are connected to the lower cover of the impact cylinder, the lower ends of the air bag tie rods are fixedly connected to the lower air bag plate, the air bag tie rods pass through the upper air bag plate, and the upper air bag plate can slide up and down along the air bag tie rods.

5. A quick deflation device as claimed in claim 4 wherein a plurality of said air bag tie rods are arranged along the circumference of said air bag, said spring fitting over said air bag tie rods.

6. A quick release apparatus as claimed in claim 2, wherein said pilot quick release valve is controlled by a solenoid valve for controlling said pilot quick release valve to release air from the air bag when said impact platform falls.

7. A rapid deflation device as claimed in claim 1 wherein the upper part of the bladder is connected to the bladder upper plate by screws, the bladder upper plate is connected to the bladder sealing plate by screws, and the lower part of the bladder is connected to the bladder lower plate by screws.

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