CN214699366U

CN214699366U - Explosion-proof overpressure exhaust valve for civil air defense engineering

Info

Publication number: CN214699366U
Application number: CN202120853395.5U
Authority: CN
Inventors: 王真红
Original assignee: Yunnan Hongshengyong Civil Air Defense Equipment Manufacturing Co ltd
Current assignee: Yunnan Hongshengyong Civil Air Defense Equipment Manufacturing Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-12
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a civil air defense engineering explosion-proof overpressure exhaust valve, which relates to the technical field of civil air defense engineering apparatus, comprising an installation base, wherein the right side of the installation base is welded with an exhaust valve main body, the exhaust valve main body comprises a shell, the right side of the shell is provided with an air inlet, the top of the air inlet is fixed with an exhaust pipe, the inner side of the exhaust pipe is provided with an explosion-proof fan, the lower part of the right side of the exhaust pipe is fixed with a fixed plate at the inner side of the shell, the bottom of the inner side of the shell is welded with a U-shaped connecting seat, the U-shaped connecting seat is connected with a movable rod through a hinged shaft in a rotating way, the bottom of the movable rod is fixed with a first balancing weight, the top of the movable rod extends to the inner side of the shell through the air inlet and is fixed with a clamping plate, the front surface of the shell is provided with an electronic pressure gauge and a controller, the utility model has simple structure, reasonable design, has explosion-proof function and can automatically adjust the exhaust speed, the automation degree is high, and the practical performance is strong.

Description

Explosion-proof overpressure exhaust valve for civil air defense engineering

Technical Field

The utility model relates to a civil air defense engineering apparatus technical field, in particular to explosion-proof superpressure exhaust valve of civil air defense engineering.

Background

The explosion-proof overpressure exhaust valve is mainly used for an exhaust outlet of a civil air defense project, is normally closed, and when toxin filtering ventilation is needed, 30-50pa overpressure is kept inside the civil air defense project, and at the moment, a valve cover of the explosion-proof overpressure exhaust valve is automatically opened under the action of overpressure so as to remove toxic gas in an anti-toxin passage, and meanwhile, the overpressure also prevents the toxic gas in the atmosphere from entering the civil air defense project.

The existing exhaust valve mostly has no corresponding reinforcing structure and autonomous exhaust regulation and control capability, so that the exhaust valve is low in pressure resistance and strength and has no explosion-proof capability, and meanwhile, the counter weight is limited in weight, so that the overpressure value is a fixed value, the practicability is poor, and the problem of the occurrence of the overpressure exhaust valve in civil air defense engineering is urgently needed to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an explosion-proof superpressure exhaust valve of civil air defense engineering can effectively solve the problem among the background art.

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

an explosion-proof overpressure exhaust valve for civil air-defense engineering comprises an installation base, wherein an exhaust valve main body is welded on the right side of the installation base, threaded holes are formed in the surface of the installation base on the periphery of the outer side of the exhaust valve main body, fastening bolts are connected in the threaded holes in a threaded manner, the exhaust valve main body comprises a shell, an air inlet is formed in the right side of the shell, an exhaust pipe is fixed at the top of the air inlet and communicated with the inner side of the shell, a dust-proof mesh enclosure is arranged at the top of the exhaust pipe, an explosion-proof fan is installed on the inner side of the exhaust pipe, a fixed plate is fixed on the inner side of the shell below the right side of the exhaust pipe, a U-shaped connecting seat is welded at the bottom of the inner side of the shell, the U-shaped connecting seat is rotatably connected with a movable rod through a hinged shaft, a first balancing weight is fixed at the bottom of the movable rod, and a clamping plate is fixed at the top of the movable rod, extends to the inner side of the shell through the air inlet, the clamping plate is located on the left side of the fixed plate, a connecting joint is welded on the outer wall of the right side of the shell and right below the air inlet, the connecting joint and the movable rod are inserted to form the same connecting shaft, and the electronic pressure gauge and the controller are installed on the front face of the front end of the shell.

Preferably, a clamping groove is formed in the middle of the surface of the fixing plate, and a sealing washer is bonded on the inner side of the clamping groove in a matched mode.

Preferably, the cross-sectional views of the clamping groove and the clamping plate are both in a trapezoidal structure, and the clamping groove is matched with the clamping plate.

Preferably, the two sides of the first balancing weight are symmetrically fixed with inserting rods, the surface of each inserting rod is provided with two placing grooves with upward openings, and the inner sides of the placing grooves are provided with second balancing weights.

Preferably, the surface of the second balancing weight is provided with a jack, the aperture of the jack is larger than the diameter of the jack, and the thickness of the second balancing weight is equal to the width of the placing groove.

Preferably, an electric wire and a wire are connected between the electronic pressure gauge and the explosion-proof fan and the controller, and the controller is electrically connected with a power supply.

Preferably, the exhaust valve body is a cylindrical hollow structure, and a cushion pad is bonded to the surface of the mounting base and the outer wall of the exhaust valve body on the opposite side.

Preferably, the threaded holes are six and distributed in an annular array.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model prevents the shell of the exhaust valve main body from bursting due to the over-high pressure by arranging the exhaust pipe with the function of dredging the pressure, and can accelerate the exhaust power by the arranged explosion-proof fan, thereby further improving the exhaust efficiency of the device and preventing the potential safety hazard caused by the ultra-high pressure in the exhaust valve main body;

2. the utility model discloses the accessible changes the effort of first balancing weight to the movable rod to change the device's superpressure value, with the service condition who satisfies the device under the different states, improved the device's practicality greatly.

Drawings

Fig. 1 is a schematic view of the whole structure of the explosion-proof overpressure exhaust valve of civil air defense engineering;

FIG. 2 is a front view of the overall appearance structure of the explosion-proof overpressure exhaust valve of civil air defense construction;

FIG. 3 is a schematic view of the overall structure of the first and second counter weight blocks of the explosion-proof overpressure exhaust valve of civil air defense construction;

fig. 4 is the utility model relates to an overall structure schematic diagram of explosion-proof superpressure exhaust valve fixed plate of civil air defense engineering.

In the figure: 1. installing a base; 101. a threaded hole; 102. fastening a bolt; 2. an exhaust valve main body; 201. a housing; 202. an air inlet; 3. an exhaust pipe; 301. a dust-proof net cover; 302. an explosion-proof fan; 4. a fixing plate; 401. a card slot; 402. a sealing gasket; 5. a U-shaped connecting seat; 501. hinging a shaft; 6. a movable rod; 601. clamping a plate; 7. a first weight block; 701. inserting a rod; 702. a placement groove; 703. a second counterweight block; 704. a jack; 8. a connecting joint; 801. a connecting shaft; 9. an electronic pressure gauge; 10. a controller; 11. a cushion pad.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, an explosion-proof overpressure exhaust valve for civil air defense engineering comprises an installation base 1, an exhaust valve main body 2 is welded on the right side of the installation base 1, threaded holes 101 are formed in the surface of the installation base 1 around the outer side of the exhaust valve main body 2, fastening bolts 102 are connected in the threaded holes 101 in a threaded manner, the exhaust valve main body 2 comprises a shell 201, an air inlet 202 is formed in the right side of the shell 201, an exhaust pipe 3 is fixed at the top of the air inlet 202, the exhaust pipe 3 is communicated with the inner side of the shell 201, a dust screen 301 is arranged at the top of the exhaust pipe 3, an explosion-proof fan 302 is installed at the inner side of the exhaust pipe 3, a fixed plate 4 is fixed at the inner side of the shell 201 below the right side of the exhaust pipe 3, a U-shaped connecting seat 5 is welded at the bottom of the inner side of the shell 201, the U-shaped connecting seat 5 is rotatably connected with a movable rod 6 through a hinge shaft 501, the bottom mounting of movable rod 6 has first balancing weight 7, the top of movable rod 6 runs through air inlet 202 and extends to the inboard of casing 201 and is fixed with cardboard 601, cardboard 601 is located the left side of fixed plate 4, it has joint 8 to connect in the right side outer wall welding of casing 201 under the air inlet 202, joint 8 inserts with movable rod 6 and is equipped with same connecting axle 801, electronic pressure gauge 9 and controller 10 are installed to the front surface of casing 201.

In this embodiment, preferably, a clamping groove 401 is formed in the middle of the surface of the fixing plate 4, and a sealing washer 402 is bonded to the inner side of the clamping groove 401 in a matching manner.

In this embodiment, preferably, the cross-sectional views of the clamping groove 401 and the clamping plate 601 are both of a trapezoid structure, and the clamping groove 401 is matched with the clamping plate 601, so that the air tightness of the exhaust valve main body 2 is better.

In this embodiment, preferably, the insertion rods 701 are symmetrically fixed to both sides of the first balancing weight 7, two placing grooves 702 with upward openings are formed in the surfaces of the two insertion rods 701, the second balancing weights 703 are placed on the inner sides of the placing grooves 702, and the overpressure value applied to the device can be changed by changing the number of the second balancing weights 703.

In this embodiment, preferably, the surface of the second weight block 703 is provided with a hole 704, the hole diameter of the hole 704 is larger than the diameter of the insertion rod 701, and the thickness of the second weight block 703 is equal to the width of the placement groove 702, so that the second weight block 703 is more convenient to take out or place.

In this embodiment, preferably, an electric wire and a conducting wire are connected between the electronic pressure gauge 9 and the explosion-proof fan 302 and the controller 10, and the controller 10 is electrically connected to a power supply, so as to form a complete automatic control system.

In this embodiment, preferably, the overall structure of the exhaust valve body 2 is a cylindrical hollow structure, and the surface of the mounting base 1 and the outer wall of the opposite side of the exhaust valve body 2 are bonded with the cushion pad 11, so that the impact destructive force of the device caused by the over-high pressure can be effectively relieved, and the service life of the product is prolonged.

In this embodiment, preferably, six threaded holes 101 are provided, and the six threaded holes 101 are distributed in an annular array, so that the overall structure of the device is more stable and reliable when the device is fixedly installed.

It is to be noted that the utility model is an explosion-proof overpressure exhaust valve for civil air defense engineering, when in use, the mounting base 1 is mounted on the air outlet of civil air defense engineering, the mounting base 1 is fixed on the wall body through the fastening bolts 102, the number of the threaded holes 101 is six, and the threaded holes are distributed in an annular array, the stability of the whole structure of the device is greatly improved, when the internal pressure is too high, the clamping plate 601 is separated from the fixing plate 4 by the outside of the pressure, a gap is generated between the clamping plate and the fixing plate, gas enters the exhaust valve main body 2 from the gas inlet 202 and is exhausted through the communicated exhaust pipe 3, a complete exhaust system is formed, the pressing gravity of the movable rod 6 can be changed by changing the number of the second balancing weights 703 in the placing groove 702, thereby changing the overpressure threshold value of the device, meeting the use of the device in different states and greatly improving the practical performance of the device; the blast pipe 3 that sets up has the effect that the air guide ventilates, can effectively alleviate the inside pressure that receives of exhaust valve main part 2, when 2 internal pressure of exhaust valve main part is too high, electronic pressure table 9 gives controller 10 with numerical value information transfer, the operating condition and the operating power of controller 10 control explosion-proof fan 302, the realization is to the intelligent control of the device exhaust rate, prevent the emergence of the phenomenon of bursting, the security that the device used has been improved, also make inside atmospheric pressure can reduce in order simultaneously, prevent to arouse the incident because of the unstability of step-down.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an explosion-proof superpressure exhaust valve of civil air defense engineering, includes installation base (1), its characterized in that: the right side welding of installation base (1) has exhaust valve main part (2), threaded hole (101) has been seted up on the surface of installation base (1) around the outside of exhaust valve main part (2), threaded hole (101) female connection has fastening bolt (102), exhaust valve main part (2) include casing (201), air inlet (202) have been seted up on the right side of casing (201), the top of air inlet (202) is fixed with blast pipe (3), blast pipe (3) are linked together with the inboard of casing (201), the top of blast pipe (3) is configured with dust screen panel (301), explosion-proof fan (302) are installed to the inboard of blast pipe (3), the right side below of blast pipe (3) is fixed with fixed plate (4) in the inboard of casing (201), the inboard bottom welding of casing (201) has U type connecting seat (5), u type connecting seat (5) are connected with movable rod (6) through articulated shaft (501) rotation, the bottom mounting of movable rod (6) has first balancing weight (7), the top of movable rod (6) runs through the inboard that air inlet (202) extended to casing (201) and is fixed with cardboard (601), cardboard (601) are located the left side of fixed plate (4), it has joint (8) to connect in the right side outer wall welding of casing (201) under air inlet (202), joint (8) are inserted with movable rod (6) and are equipped with same connecting axle (801), electron pressure table (9) and controller (10) are installed to the front end positive surface of casing (201).

2. An explosion-proof overpressure exhaust valve for civil air defense engineering as claimed in claim 1, characterized in that: a clamping groove (401) is formed in the middle of the surface of the fixing plate (4), and a sealing gasket (402) is bonded on the inner side of the clamping groove (401) in a matched mode.

3. An explosion-proof overpressure exhaust valve for civil air defense engineering as claimed in claim 2, characterized in that: the cross-sectional views of the clamping groove (401) and the clamping plate (601) are both in a trapezoidal structure, and the clamping groove (401) is matched with the clamping plate (601).

4. An explosion-proof overpressure exhaust valve for civil air defense engineering as claimed in claim 1, characterized in that: inserting rods (701) are symmetrically fixed to two sides of the first balancing weight (7), two placing grooves (702) with upward openings are formed in the surfaces of the two inserting rods (701), and second balancing weights (703) are placed on the inner sides of the placing grooves (702).

5. An explosion-proof overpressure exhaust valve for civil air defense engineering as claimed in claim 4, characterized in that: the surface of the second balancing weight (703) is provided with a jack (704), the aperture of the jack (704) is larger than the diameter of the inserted link (701), and the thickness of the second balancing weight (703) is equal to the width of the placing groove (702).

6. An explosion-proof overpressure exhaust valve for civil air defense engineering as claimed in claim 1, characterized in that: and electric wires and conducting wires are connected between the electronic pressure gauge (9) and the explosion-proof fan (302) and the controller (10), and the controller (10) is electrically connected with a power supply.

7. An explosion-proof overpressure exhaust valve for civil air defense engineering as claimed in claim 1, characterized in that: the integral structure of the exhaust valve main body (2) is a cylindrical hollow structure, and a buffer cushion (11) is bonded on the surface of the mounting base (1) and the outer wall of the opposite side of the exhaust valve main body (2).

8. An explosion-proof overpressure exhaust valve for civil air defense engineering as claimed in claim 1, characterized in that: the threaded holes (101) are six, and the threaded holes (101) are distributed in an annular array.