SMC light anti-explosion valve

Abstract

The utility model discloses an SMC light anti-explosion valve which comprises a valve body and a valve cover, the valve body and the valve cover are respectively made of SMC composite materials in an integrated forming mode, the valve cover is arranged on the inner wall of the circumference in the valve body in a matched mode, and an eccentric supporting rotating shaft is arranged between the radial line and the inner wall in the valve body. The two ends of the eccentric supporting rotating shaft are rotationally installed on the valve body through supporting bearings, the center of the valve deck is connected to the eccentric supporting rotating shaft through a transmission assembly, and when the eccentric supporting rotating shaft rotates, the transmission assembly pushes the valve deck to be opened or cover the inner wall of the inlet end of the valve body in a sealed mode. According to the sealing valve device, the valve body and the valve cover can be tightly attached, it can be guaranteed that the valve cover can be installed or detached in the valve body more easily and conveniently, and meanwhile it can be guaranteed that stable air tightness is formed between the valve body and a connecting pipeline.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the airtight valve for civil air defense, especially relates to a SMC light weight explosion-proof valve. BACKGROUND

[0002] In the civil air defense engineering construction, the explosion-proof valve is an important equipment for being often used in the underground civil air defense engineering, being used for ventilating and cutting off the gas circuit, controlling the airflow direction, the airtight valve mainly plays the role of closing the gas and isolating the medium circulation in the pipeline, and can provide the safe protection for people under the economic state. However, the existing metal explosion-proof valve has some problems in the actual use process: cannot adapt to the basement humid and hot or the coastal area high salinity environment, is easy to cause the transmission mechanism failure, shortens the service life and the like due to rust, the light weight valve product has the outstanding advantages such as light weight, moisture resistance, corrosion resistance compared with the traditional metal product. Therefore, the light weight valve is more conducive to the conversion ventilation, and can be applied to the pipeline environment with acid and alkali corrosive gas;With the continuous development of the new sealing explosion-proof valve technology, the SMC (Sheet Molding Compound, sheet molding compound) composite material is diversified in function, is one of the raw materials for production and manufacturing in various fields, gradually is applied to the explosion-proof ventilation equipment manufacturing field due to the advantages such as light weight, high strength, corrosion resistance, and can greatly improve various explosion-proof performances of the explosion valve. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a kind of SMC light weight explosion-proof valves, the sealing valve device of the utility model not only can make valve body and bonnet tightly fit, can guarantee that bonnet is more simple and convenient when being installed or disassembled in valve body, while it can guarantee that stable air tightness is formed between valve body and connecting pipeline.For realizing the above-mentioned purpose, the utility model adopts the following technical solutions:

[0004] According to an aspect of the utility model, a kind of SMC light weight explosion-proof valves are provided, including valve body and bonnet, valve body and bonnet are respectively prepared by SMC composite material integrated molding, the circumference inner wall in the valve body is matched with the valve cover, eccentric support pivot is arranged between radial line and inner wall in valve body, the both ends of the eccentric support pivot are rotatably installed on valve body by support bearing, the center of the valve cover is connected on eccentric support pivot by transmission assembly, the eccentric support pivot is opened or sealed cover in the inlet end inner wall of valve body by transmission assembly when rotating and pushes the valve cover.

[0005] Further preferably, the transmission assembly comprises a first fixed base and a second fixed base located on both sides of the eccentric support rotating shaft, the first fixed base is arranged on the center of the back surface of the valve cover, a pair of support plates extending to one side of the eccentric support rotating shaft are arranged on the first fixed base, the second fixed base is arranged on the inner wall of the valve body, a transmission support curved rod is arranged on the second fixed base, one end of the transmission support curved rod is fixed vertically on the second fixed base, a first connecting shaft hole for sleeving the eccentric support rotating shaft is arranged at the curved transition position of the transmission support curved rod, and the curved portions of the transmission support curved rod are respectively in transmission connection with the end portions of the pair of support plates.

[0006] Further preferably, a first pin shaft is arranged horizontally between the middle portions of the pair of support plates, a first transmission rod is arranged at both ends of the first pin shaft and located outside the support plates, the rotating end of the first transmission rod is in transmission connection with the end portion of the first pin shaft, and the fixed end of the first transmission rod is connected to the eccentric support rotating shaft, a second pin shaft is arranged horizontally between the free end portions of the pair of support plates, and the end portions of the curved portions are respectively in transmission connection with the second pin shaft between the pair of support plates.

[0007] Further preferably, a second connecting shaft hole is arranged on the end portion of the curved portion, a third pin shaft is arranged in the second connecting shaft hole, a pair of second transmission rods are arranged at both ends of the third pin shaft, one end of the pair of second transmission rods is fixed to the two ends of the second transmission rod, and the other end of the pair of second transmission rods is rotatably connected to the third pin shaft between the free end portions of the pair of support plates.

[0008] Further preferably, a sleeve is sleeved on the eccentric support rotating shaft located on both sides of the first connecting shaft hole, the sleeve is fixed on the eccentric support rotating shaft by a pin, and the fixed end of the first transmission rod located outside the support plate is sleeved and fixed on the outer wall of the sleeve.

[0009] Further preferably, a sealing support ring is arranged on the edge of the inner wall of the inlet end of the valve body, when the valve cover is closed on the inner wall of the inlet end of the valve body, the outer surface edge of the valve cover is tightly attached to the sealing support ring.

[0010] Further preferably, an annular sealing gasket is arranged on the outer surface edge of the valve cover and tightly attached to the sealing support ring.

[0011] Further preferably, flange connection plates are arranged on the edges of the inlet end and the outlet end of the valve body, and connecting holes are arranged on the surface of the flange connection plates.

[0012] Further preferably, reinforcing ribs are arranged on the outer wall of the valve body between the flange connection plates. The reinforcing ribs can enhance the strength of the valve body and the back surface of the flange connection plates.

[0013] In summary, since the utility model adopts the above technical scheme, the utility model has the following technical effects:

[0014] (1) the SMC light explosion-proof valve of the utility model has low production cost, light weight, high strength, can completely overcome the defects of the existing metal ventilation valve, has the advantages of corrosion resistance, aging resistance, long service life, wide application environment and the like, can ensure that the valve cover is more simple and convenient to install or disassemble, the valve cover can be quickly closed or opened in the valve body, and the sealing performance and operation speed are greatly improved.

[0015] (2) the high-strength SMC composite material is selected and applied to the airtight system equipment of the chemical defense filter room, under the premise of not increasing investment, the long-term filter function can be ensured, the service life of the equipment is prolonged, the labor intensity of transportation and installation of the chemical defense equipment is significantly reduced, the installation efficiency is improved, the maintenance and management cost during use is reduced, and the rapid combat conversion requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic view of the inlet side of a SMC light explosion-proof valve of the utility model;

[0017] Figure 2 is the overall structure schematic view of the outlet side of a SMC light explosion-proof valve of the utility model;

[0018] Figure 3 is the front view structure schematic view of the utility model Figure 2 ;

[0019] Figure 4 is the explosion structure schematic view of a SMC light explosion-proof valve of the utility model;

[0020] Figure 5 is the overall structure schematic view of the transmission assembly of the utility model;

[0021] Figure 6 is the installation structure schematic view of the support plate of the utility model;

[0022] Figure 7 is the structure schematic view of the transmission support curved rod of the utility model;

[0023] In the drawings, the valve body 1, the valve cover 2, the eccentric support rotating shaft 3, the support bearing 4, the transmission assembly 5, the flange connecting disc 6, the reinforcing rib 7, the sealing support ring 10, the annular sealing gasket 20, the first fixed base 50, the second fixed base 51, the support plate 52, the transmission support curved rod 53, the curved part 53a, the sleeve 54, the pin 55, the connecting hole 60, the first pin shaft 501, the first transmission rod 502, the second pin shaft 503, the second transmission rod 504, the vertical connecting part 520, the bent connecting part 521, the second connecting shaft hole 531, the third pin shaft 532. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following preferred embodiments are referred to the drawings and are further explained in detail. However, it should be pointed out that many details listed in the specification are only for the reader to have a thorough understanding of one or more aspects of the utility model, and the aspects of the utility model can be realized even without these specific details.

[0025] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, according to the utility model discloses a kind of SMC light blastproof valve, including valve body 1 and valve cover 2, valve body 1 and valve cover 2 are respectively prepared by SMC composite material integrated forming, the circumference inner wall in valve body 1 is matched with the valve cover 2, and eccentric support rotating shaft 3 is arranged between radial line and inner wall in valve body 1, the both ends of the eccentric support rotating shaft 3 are rotatably installed on valve body 1 by support bearing 4, the center of the valve cover 2 is connected on eccentric support rotating shaft 3 by transmission assembly 5, when the eccentric support rotating shaft 3 rotates, the valve cover 2 is opened or sealed cover in the inlet end inner wall of valve body 1 by transmission assembly 5, flange connecting disc 6 is arranged on the edge of inlet end and outlet end of valve body 1, and connecting hole 60 is arranged on the surface of flange connecting disc 6;Reinforcing rib 7 is arranged on the outer wall of valve body 1 between flange connecting disc 6;In the utility model, flange connecting disc 6 of the both ends of valve body 1 is installed and connected on ventilation duct, after the both ends of eccentric support rotating shaft 3 stretch out to the outside of valve body 1, power motor, rocker or hand wheel can be installed on the end of eccentric support rotating shaft 3 and drive eccentric support rotating shaft 3 to rotate, since valve cover 2 is fixed on connecting eccentric support rotating shaft 3 by transmission assembly 5, when eccentric support rotating shaft 3 rotates, valve cover 2 is closed or opened in valve body 1 by transmission assembly 5, the closing or opening of valve body 1 is completed, when valve cover 2 is closed in the inlet end of valve body 1, the airtight plugging between valve body 1 and ventilation duct is carried out, when being opened, valve body 1 and ventilation duct realize air flow, reach the purpose of air volume control, shunt or cut-off, when being opened or closed, it is simple to operate, with good operability, SMC composite material (with unsaturated polyester as matrix material, with glass fiber as reinforcing material) is used as base material and is integrally molded into valve body 1 and valve cover 2, with the advantages of light weight, high strength, strong corrosion resistance, good thermal insulation, easy installation and maintenance, good economy etc., greatly enhance the blastproof performance of valve, can be applied to air-raid basement, subway and other civil air defense projects, and can guarantee the protection function of civil air defense project entrance.

[0026] As Figure 4 shown, sealing support ring 10 is arranged on the inner wall edge of valve body 1 inlet end, when valve cover 2 is sealed and closed on the inlet end inner wall of valve body 1, the outer surface edge of valve cover 2 is closely combined with sealing support ring 10;Annular sealing pad 20 is arranged on the outer surface edge of valve cover 2 and closely combined with sealing support ring 10, when eccentric support rotating shaft 3 rotates and drives valve cover 2 to close by transmission assembly 5, annular sealing pad 20 on the outer surface of valve cover 2 can be tightly pressed on sealing support ring 10 on the circumference of valve body 1 inner wall, and valve body 1 is airtight plugging, and the flowing air is cut off.

[0027] As Figure 1 , Figure 2 , Figure 3 , Figure 4 andFigure 5 As shown, the transmission assembly 5 comprises a first fixed base 50 and a second fixed base 51 located on both sides of the eccentric support rotating shaft 3, the first fixed base 50 is arranged on the center of the back of the valve cover 2, a pair of support plates 52 extending to one side of the eccentric support rotating shaft 3 are arranged on the first fixed base 50, the second fixed base 51 is arranged on the inner wall of the valve body 1, a transmission support curved rod 53 is arranged on the second fixed base 51, one end of the transmission support curved rod 53 is vertically fixed on the second fixed base 51, a first connecting shaft hole 530 for sleeving on the eccentric support rotating shaft 3 is arranged at the bending transition position of the transmission support curved rod 53, the bending part 53a of the transmission support curved rod 53 is respectively in transmission connection with the end part of the pair of support plates 52; a sleeve 54 is sleeved on the eccentric support rotating shaft 3 located on both sides of the first connecting shaft hole 530, the sleeve 54 is fixed on the eccentric support rotating shaft 3 through a pin 55, and the fixed end of the first transmission rod 502 located outside the support plate 52 is sleeved and fixed on the outer wall of the sleeve 54. When the eccentric support rotating shaft 3 is rotated to open the valve cover 2, the first transmission rod 502 is rotated and pulls the support plate 52 to move upward, so that the valve cover 2 is pulled and lifted to leave the surface of the sealing support ring 10 by a distance, and with the continuous rotation of the first transmission rod 502, the first transmission rod 502 drives the support plate 52 and the valve cover 2 to rotate together in the valve body 1 in the rotation process, so that the valve cover 2 opens an air flow passage in the valve body 1.

[0028] In the utility model, the support plate 52 is composed of vertical connecting part 520 and bending connecting part 521 which are integrally formed, the fixed end of vertical connecting part 520 is fixedly connected vertically on the first fixed base 50, the first pin shaft 501 is arranged through the transition position of vertical connecting part 520 and bending connecting part 521, and the second pin shaft 503 is arranged through the free end position of bending connecting part 521.

[0029] In the utility model, the first pin shaft 501 is arranged horizontally between the middle parts of the pair of support plates 52, the first transmission rod 502 is arranged at both ends of the first pin shaft 501 and located outside the support plate 52, the rotating end of the first transmission rod 502 is in transmission connection with the end part of the first pin shaft 501, the fixed end of the first transmission rod 502 is connected on the eccentric support rotating shaft 3, the second pin shaft 503 is arranged horizontally between the free end parts of the pair of support plates 52, and the end part of the bending part 53a is in transmission connection with the second pin shaft 503 between the pair of support plates 52.

[0030] Second connecting shaft holes 531 are arranged on the ends of the bending parts 53a, third pin shafts 532 are arranged in the second connecting shaft holes 531, a pair of second transmission rods 504 are arranged at the two ends of the third pin shafts 532 respectively, one end of the pair of second transmission rods 504 is fixed respectively, the other end of the pair of second transmission rods 504 is rotatably connected on the third pin shafts 532 between the free ends of the pair of support plates 52 respectively; in the rotating process, the first transmission rod 502 drives the support plate 52 to move through the first pin shaft 501, and drives the vertical connecting part 520 of the support plate 52 to drive the valve cover 2 to move, along with the rotation of the first transmission rod 502, the bending connecting part 521 of the support plate 52 rotates on the bending part 53a along the second pin shaft 503, and drives the valve cover 2 to rotate, so that the valve cover 2 opens an air flow channel in the valve body 1, therefore, the valve cover 2 can be quickly opened or closed in the valve body 1, the sealing performance is greatly improved, so that the valve cover 2 can seal the gas and isolate the medium flow in the pipeline.

[0031] The above only describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An SMC light weight explosion proof valve characterized by: The utility model provides a valve body (1) and valve cover (2) are both respectively by SMC composite material integrated preparation, the valve body (1) in the circumference inner wall matching the valve cover (2) is arranged, and the eccentric support rotating shaft (3) is arranged between the radial line and the inner wall in the valve body (1), both ends of the eccentric support rotating shaft (3) are rotatably installed on the valve body (1) through the support bearing (4), the center of the valve cover (2) is connected on the eccentric support rotating shaft (3) through the transmission assembly (5), the eccentric support rotating shaft (3) rotates and pushes the valve cover (2) to open or seal cover and shut on the inlet end inner wall of the valve body (1) through the transmission assembly (5).

2. A SMC light weight explosion relief valve according to claim 1, characterized in that: The transmission assembly (5) includes first fixed base (50) and second fixed base (51) on both sides of eccentric support rotating shaft (3), the first fixed base (50) is arranged on the center of the back of valve cover (2), a pair of support plates (52) extending to one side of eccentric support rotating shaft (3) are arranged on the first fixed base (50), the second fixed base (51) is arranged on the inner wall of the valve body (1), transmission support curved rod (53) is arranged on the second fixed base (51), one end of transmission support curved rod (53) is fixed vertically on the second fixed base (51), first connecting shaft hole (530) for sleeving on eccentric support rotating shaft (3) is arranged at the bending transition position of transmission support curved rod (53), the bending part (53a) of transmission support curved rod (53) is respectively connected with the end of a pair of support plates (52).

3. A SMC light weight explosion relief valve according to claim 2, characterized in that: First pin shaft (501) is arranged horizontally between the middle of a pair of support plates (52), first transmission rod (502) is arranged respectively at both ends of first pin shaft (501) and outside support plate (52), the rotating end of first transmission rod (502) is connected with the end of first pin shaft (501), the fixed end of first transmission rod (502) is connected with eccentric support rotating shaft (3), second pin shaft (503) is arranged horizontally between the free end of a pair of support plates (52), and the end of bending part (53a) is connected with second pin shaft (503) between a pair of support plates (52).

4. A SMC light weight explosion relief valve according to claim 3, characterized in that: Second connecting shaft hole (531) is arranged on the end of bending part (53a), third pin shaft (532) is arranged in second connecting shaft hole (531), a pair of second transmission rods (504) are arranged respectively at both ends of third pin shaft (532), one end of a pair of second transmission rods (504) is fixed, and the other end of a pair of second transmission rods (504) is rotatably connected with third pin shaft (532) between the free end of a pair of support plates (52).

5. A SMC light weight explosion relief valve according to claim 2, characterized in that: A sleeve (54) is sleeved on the eccentric support shaft (3) located on both sides of the first connecting shaft hole (530), the sleeve (54) is fixed on the eccentric support shaft (3) through a pin (55), and a fixed end of the first transmission rod (502) located outside the support plate (52) is sleeved and fixed on the outer wall of the sleeve (54).

6. A SMC light weight explosion relief valve according to claim 1, characterized in that: A sealing support ring (10) is arranged on the inner wall edge of the inlet end of the valve body (1), when the valve cover (2) is tightly covered on the inner wall of the inlet end of the valve body (1), the outer surface edge of the valve cover (2) is tightly combined with the sealing support ring (10).

7. A SMC light weight explosion relief valve according to claim 6, characterized in that: An annular sealing gasket (20) which is tightly combined with the sealing support ring (10) is arranged on the outer surface edge of the valve cover (2).

8. A SMC light weight explosion relief valve according to claim 1 or 2 or 6 or 7, characterized in that: Flange connecting discs (6) are arranged on the edges of the inlet end and the outlet end of the valve body (1), and connecting holes (60) are arranged on the surfaces of the flange connecting discs (6).

9. A SMC light weight explosion relief valve according to claim 8, characterized in that: Reinforcing ribs (7) are arranged on the outer wall of the valve body (1) between the flange connecting discs (6).

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