CN212744835U

CN212744835U - Explosion-proof gas pitcher

Info

Publication number: CN212744835U
Application number: CN202021135708.5U
Authority: CN
Inventors: 杨永辉
Original assignee: 天津合川汔机械设备有限公司
Current assignee: Tianjin Airui Baodi mechanical equipment Co.,Ltd.
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-03-19
Anticipated expiration: 2030-06-18

Abstract

The utility model provides an explosion-proof gas pitcher is connected with the gasbag bumper shock absorber, belongs to gasbag bumper shock absorber accessory technical field, including pressure relief device, foil gage, gas holder and relief pressure valve, pressure relief device sets up the tail end at the gas holder, the head end of gas holder is provided with the relief pressure valve, the tank wall facing of gas holder is equipped with the foil gage, the foil gage is connected with the pressure relief device electricity. When the pressure relief device is used, the strain gauge is used for measuring the deformation amount of the gas storage tank, the strain gauge can convert the deformation amount of the gas storage tank into a digital signal through a digital-to-analog conversion circuit to be transmitted to the single chip microcomputer to be judged, when the deformation amount of the gas storage tank reaches a critical point, the single chip microcomputer sends an electric signal to enable the relay to be switched on, then the pressure relief device is enabled to be released, inert gas in the gas storage tank is enabled to be excessive, the pressure in the gas storage tank is reduced, and the gas storage. The utility model relates to a rationally, fundamentally has solved because the gas holder makes the gas holder problem of fracture explosion because stress concentration.

Description

Explosion-proof gas pitcher

Technical Field

The embodiment of the utility model provides an explosion-proof gas pitcher relates to gasbag bumper shock absorber accessory technical field, concretely relates to.

Background

The gas holder is the jar that is used for storing gas specially, mainly uses in the gasbag bumper shock absorber, through constantly supplementing gas to the gasbag to keep the gasbag full for a long time, make the damping performance of gasbag bumper shock absorber keep stable from this. At present, the material of gas holder is mostly metallic structure, because the gas holder needs the gas charging repeatedly, therefore the gas holder uses the problem that can inevitably lead to metal fatigue under long-time high frequency alternating load effect for the metal surface produces local permanent cumulative damage, makes the metal shape change then. And bear under the condition of high atmospheric pressure in the gas holder, must lead to stress concentration to make the gas holder fracture explosion, because the gasbag bumper shock absorber mainly installs on the motor vehicle, if motor vehicle in the road travel, appear such situation, that consequence is extremely serious, and prior art is the structural strength who simply improves the gas holder, though improved the life of gas tank, but along with the lapse of time, the gas holder still can damage, and the security of gas holder still can not effectively be guaranteed.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides an explosion-proof gas tank to solve among the prior art because the gas holder the local permanent accumulation damage and the stress concentration that leads to makes the gas holder fracture explosion's problem.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the embodiment of the utility model provides an explosion-proof gas pitcher is connected with the gasbag bumper shock absorber, including pressure relief device, foil gage, gas holder and relief pressure valve, pressure relief device sets up the tail end at the gas holder, the head end of gas holder is provided with the relief pressure valve the tank wall facing of gas holder is equipped with the foil gage, the foil gage is connected with the pressure relief device electricity.

Furthermore, the pressure reducing device comprises a push-pull electromagnet, a valve head, a valve core and a spring, the valve head is inserted into the tail end of the gas storage tank, the push-pull electromagnet is fixedly arranged at the end part of the valve head, the push-pull electromagnet is in transmission connection with the valve core, the valve core is arranged in the valve head in a sliding mode, the spring is arranged in the valve head, and the spring is arranged between the valve core and the gas storage tank.

The push-pull electromagnet forms a loop with a power supply through the relay, the relay is electrically connected with the single chip microcomputer, and the single chip microcomputer is electrically connected with the strain gauge through the digital/analog conversion circuit.

Further, the gas holder includes a jar body, tonifying qi mouth, base and gas outlet, the foil gage subsides are established on a jar body, the head end portion of a jar body is provided with the tonifying qi mouth, be provided with the relief pressure valve on the tonifying qi mouth, the tail end portion of a jar body is provided with the gas outlet, install the valve head on the gas outlet.

Furthermore, the outer wall of the tank body is wrapped with a foam heat-insulating layer.

The embodiment of the utility model provides a have following advantage:

the embodiment of the utility model provides an explosion-proof gas tank, establish the foil gage through pasting on the jar wall, come the deformation volume that the inspection jar wall appears, when the deformation volume of the jar body reaches the critical value, the singlechip just sends out the signal of telecommunication and makes the relay switch on, makes pressure relief device open then, releases the internal air of jar, alleviates jar internal gas pressure, thereby avoids jar body explosion, and prior art compares, the structural strength who only improves the gas holder avoids jar body cracked mode, the utility model discloses can be through detecting jar body deformation degree, thereby predict the use critical point of the jar body in advance, thereby can in time alleviate jar internal pressure, thereby fundamentally stops the problem of gas pitcher explosion, thereby solved among the prior art because the gas holder appear the stress concentration that local permanent accumulation damage leads to and make the gas holder fracture explosion problem.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a perspective view of an explosion-proof gas tank provided by the present invention;

FIG. 2 is a pressure reducing device for an explosion-proof gas tank provided by the present invention;

FIG. 3 is a view of the gas tank of an explosion-proof gas tank provided by the present invention;

fig. 4 is a circuit flow chart of an explosion-proof gas tank provided by the utility model;

in the figure: 1, a pressure reducing device; 2 strain gauges; 3, a gas storage tank; 31 a tank body; 32 air supplement ports; 33 a base; 34 air outlet; 4 a pressure reducing valve; 11 push-pull type electromagnet; 12 a valve head; 13 a valve core; 14 springs; 5, a relay; 6, a singlechip; 7D/A conversion circuit.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the embodiment of the utility model provides an explosion-proof gas tank, with be connected at the gasbag bumper shock absorber, including pressure relief device 1, foil gage 2, gas holder 3 and relief pressure valve 4, pressure relief device 1 sets up the tail end at gas holder 3, pressure relief device 1 mainly is used for uninstalling the gas in the gas holder 3 to prevent that the atmospheric pressure in the gas holder 3 from exceeding the critical value that can bear, lead to the gas holder 3 to appear bursting. The head end of the gas storage tank 3 is provided with a pressure reducing valve 4, and the pressure reducing valve 4 is used for reducing high-pressure gas into low-pressure gas so as to keep the pressure and the flow of output gas stable and unchanged. In the system, an air storage tank 3 is communicated with an air bag of an air bag buffer through a pressure reducing valve 4 so as to inflate the air bag through the pressure reducing valve 4, so that the air bag is kept full in real time. The strain gauge 2 is attached to the tank wall of the gas storage tank 3, the deformation amount of the tank wall can be monitored through the strain gauge 2, and when the deformation amount of the tank wall reaches a critical point that the tank body 31 is about to reach a rupture, the strain gauge 2 is electrically connected with the pressure reducing device 1, so that the pressure reducing device 1 can timely discharge gas, and the tank body 31 is prevented from rupturing.

According to the utility model provides a specific embodiment, pressure relief device 1 is including push-pull type electro-magnet 11, valve head 12, case 13 and spring 14, the tail end of gas holder 3 is inserted and is equipped with valve head 12, the end fixing of valve head 12 is provided with push-pull type electro-magnet 11, push-pull type electro-magnet 11 is connected with the transmission of case 13, can drive valve head 13 through push-pull type electro-magnet 11 and realize the displacement, when case 13 removes, because case 13 slides and sets up the internal 31 of jar through valve head 12 and external intercommunication in valve head 12, consequently can be quick with the gas escape in the internal 31 of jar to the internal 31 of jar does not take place to burst. Since the valve head 12 is provided with the spring 14 therein, the spring 14 is located between the valve core 13 and the air reservoir 3. When the pull-type electromagnet 11 is not electrified, the gas in the can 31 cannot overflow and leak.

According to the utility model provides a specific embodiment still includes relay 5, singlechip 6 and digital/analog conversion circuit 7, plug-type electro-magnet 11 passes through relay 5 and forms the return circuit with the power, and relay 5 plays the effect in break-make return circuit to reach the purpose that control plug-type electro-magnet 11 starts. Meanwhile, the relay 5 is electrically connected with the single chip microcomputer 6, and the single chip microcomputer 6 can lead in continuous high level to the relay 5, so that the relay 5 is switched on. The single chip microcomputer 6 is electrically connected with the strain gauge 2 through the digital/analog conversion circuit 7, and because the strain gauge 2 sends out a time analog signal, the analog signal needs to be converted into a digital signal through the digital/analog conversion circuit 7 so as to be recognized by the single chip microcomputer 6. Furthermore, the rupture critical value point of the tank 31 can be pre-stored in the single chip microcomputer 6, and when the signal transmitted by the digital/analog conversion circuit 7 reaches the critical value, the single chip microcomputer 6 can send out a high level to turn on the relay 5, so that the pressure reducing device 1 is released to rapidly unload the pressure in the tank 31.

According to the utility model provides a specific embodiment, gas holder 3 includes jar body 31, tonifying qi mouth 32, base 33 and gas outlet 34, foil gage 2 pastes and establishes on jar body 31, the head end of jar body 31 is provided with tonifying qi mouth 32, be provided with relief pressure valve 4 on the tonifying qi mouth 32 to in to the gasbag air feed, make the gasbag keep full, thereby make the pressure of system keep balanced, the tail end of jar body 31 is provided with gas outlet 34, install valve head 12 on the gas outlet 34, the purpose that sets up gas outlet 34 is mainly for can discharging the gas in the jar body 31 fast, thereby can unload the pressure of the jar body 31 fast, thereby when avoiding jar body 31 can't bear atmospheric pressure, the problem that gas holder 3 bursts.

According to the utility model provides a specific embodiment, the outer wall parcel of the jar body 31 has the foam heat preservation, because the relation of atmospheric pressure and temperature is directly proportional, utilizes the foam heat preservation can maintain the atmospheric pressure stability in the jar body 31, can also play certain guard action to the jar body 31 simultaneously.

The utility model discloses use as follows:

the utility model provides an explosion-proof gas pitcher, mainly through the inside atmospheric pressure of the jar body 31 of in time uninstallation, realize preventing the purpose of the jar body 31, during specific application method, because the tank wall subsides of the jar body 31 are equipped with foil gage 2, can detect the small deformation volume of the jar body 31 through foil gage 2, and turn into analog signal with it, later analog signal turns into digital signal and transmits for singlechip 6 through number \ analog-to-digital conversion circuit 7, when the deformation volume of the jar body 31 surpassed singlechip 6's setting value, pressure relief device 1 will in time uninstall the atmospheric pressure of the jar body 31, thereby reach the problem that prevents jar body 31 fracture. The utility model relates to a rationally, can fundamentally solve because the gas holder makes the gas holder problem of fracture explosion because stress concentration.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides an explosion-proof gas pitcher, is connected with the gasbag bumper shock absorber, its characterized in that, including pressure relief device (1), foil gage (2), gas holder (3) and relief pressure valve (4), pressure relief device (1) sets up the tail end at gas holder (3), the head end of gas holder (3) is provided with relief pressure valve (4), the tank wall facing of gas holder (3) is equipped with foil gage (2), foil gage (2) are connected with pressure relief device (1) electricity.

2. The explosion-proof gas tank as claimed in claim 1, wherein the pressure reducing device (1) comprises a push-pull electromagnet (11), a valve head (12), a valve core (13) and a spring (14), the valve head (12) is inserted into the tail end of the gas tank (3), the push-pull electromagnet (11) is fixedly arranged at the end of the valve head (12), the push-pull electromagnet (11) is in transmission connection with the valve core (13), the valve core (13) is slidably arranged in the valve head (12), the spring (14) is arranged in the valve head (12), and the spring (14) is arranged between the valve core (13) and the gas tank (3).

3. The explosion-proof gas tank is characterized by further comprising a relay (5), a single chip microcomputer (6) and a digital/analog conversion circuit (7), wherein the push-pull electromagnet (11) forms a loop with a power supply through the relay (5), the relay (5) is electrically connected with the single chip microcomputer (6), and the single chip microcomputer (6) is electrically connected with the strain gauge (2) through the digital/analog conversion circuit (7).

4. The explosion-proof gas tank of claim 3, wherein the gas tank (3) comprises a tank body (31), an air supplement port (32), a base (33) and a gas outlet (34), the strain gauge (2) is attached to the tank body (31), the air supplement port (32) is arranged at the head end of the tank body (31), the pressure reducing valve (4) is arranged on the air supplement port (32), the gas outlet (34) is arranged at the tail end of the tank body (31), and the valve head (12) is arranged on the gas outlet (34).

5. An explosion-proof gas cylinder according to claim 4, wherein the outer wall of the cylinder (31) is wrapped with a foam insulation layer.