Gas safety valve for gas pipe network

Abstract

The utility model discloses a fuel gas safety valve for a fuel gas pipe network, which relates to the technical field of fuel gas valves, and comprises a safety valve body, the safety valve body comprises two first flanges, two sides of the two first flanges are detachably connected with fuel gas pipe bodies, the number of the fuel gas pipe bodies is two, and the two first flanges are detachably connected with the fuel gas pipe bodies. The two first flanges of the safety valve body are matched with the corresponding second flanges to complete connection and fixation of the corresponding gas pipe body, after connection is completed, protection of the connecting positions of the first flanges and the second flanges is completed through matching of the first sealing sleeves and the second sealing sleeves, and the sealing performance when the gas pipe body and the safety valve body are connected is improved; the problems that when an existing gas pipe body is connected with a safety valve body only through a flange, the joint of the gas pipe body and the safety valve body is prone to loosening after a long time, gas leakage is caused, and potential safety hazards occur are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a gas safety valve for a gas pipeline network. Background Art

[0002] The gas pipe is a special pipeline for transporting combustible gas. It is a metal gas pipe hose that replaces the traditional snap-on rubber hose. It can solve the defects of rubber hoses that are easy to fall off, easy to age, easy to be bitten by insects, and have a short service life. Its application field is also very wide. Some important connection parts of the gas pipe need to be equipped with safety valves for protection.

[0003] However, most of the existing gas pipes are only connected and fixed by flanges when connected to the safety valve. Over time, the bolts used to fix the flanges are prone to loosening, causing leakage of the gas transported in the gas pipe, posing a safety hazard. Secondly, when the existing safety valves are installed outdoors with the gas pipes, most of them are in an exposed state, and the safety valves are damaged due to sun and rain, reducing the service life of the safety valves. In response to the above problems, the inventor proposes a gas safety valve for a gas pipeline network to solve the above problems. Utility Model Content

[0004] In order to solve the problem that most of the existing gas pipes are connected and fixed to the safety valve only by flanges, the bolts used to fix the flanges are prone to loosening over time, resulting in leakage of the gas transported in the gas pipes and potential safety hazards; the purpose of the utility model is to provide a gas safety valve for a gas pipeline network.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a gas safety valve for a gas pipe network, comprising a safety valve body, the safety valve body comprising a first flange, the number of the first flanges is two, both sides of the two first flanges are detachably connected with a gas pipe body, the number of the gas pipe bodies is two, the two gas pipe bodies are fixedly installed with a second flange on one side adjacent to the first flange, the first flange and the second flange cooperate with each other, the surfaces of the first flange and the second flange are both sleeved with a first sealing sleeve and a second sealing sleeve, the first sealing sleeve and the second sealing sleeve cooperate with each other, both ends of the surfaces of the first sealing sleeve and the second sealing sleeve are fixedly installed with fixings, the two fixings are symmetrically installed with positioning buckles, the positioning buckles are threadedly clamped in the two fixings, and the positioning buckles cooperate with the fixings;

[0006] The connection and fixation of the corresponding gas pipe body are completed by cooperating the two first flanges of the safety valve body with the corresponding second flanges. After the connection is completed, the protection of the connection between the first flange and the second flange is completed by cooperating the first sealing sleeve and the second sealing sleeve. The first sealing sleeve and the second sealing sleeve are limited and fixed on the surfaces of the first flange and the second flange by the fixing parts and the corresponding positioning buckles, thereby increasing the sealing performance when the gas pipe body and the safety valve body are connected, and solving the problem that when the existing gas pipe body is connected to the safety valve body only by flanges, the connection between the gas pipe body and the safety valve body is prone to loosening over time, resulting in gas leakage and safety hazards.

[0007] Preferably, fixing frames are symmetrically installed on the surfaces of the two first sealing sleeves, and there are four fixing frames. A protective cover is detachably installed on the top surfaces of the four fixing frames, and positioning pins are fixedly installed at the four corners of the bottom surface of the protective cover. There are four positioning pins, and the four positioning pins are respectively damped and inserted in the four fixing frames. The positioning pins and the fixing frames cooperate with each other. After the connection and fixation of the two gas pipe bodies and the safety valve body are completed by the first sealing sleeve and the second sealing sleeve, the installation and fixation of the protective cover are completed by the four fixing frames installed on the surfaces of the two first sealing sleeves and the four positioning pins installed on the bottom surface of the protective cover. The safety valve body is protected by the protective cover to prevent the safety valve body from being damaged by sun and rain when used outdoors with the gas pipe body, thereby reducing the service life of the safety valve body.

[0008] Preferably, evenly distributed bolts are inserted into the first flange and the second flange, and a nut is threadedly installed at one end of the bolt. The first flange and the second flange cooperate with each other through the bolts and the nuts, and the connection between the first flange and the second flange is completed by the cooperation between the bolts and the nuts, thereby completing the connection and fixation of the gas pipe body and the safety valve body. Positioning strips are symmetrically installed in the first sealing sleeve and the second sealing sleeve, and the positioning strip damping card is arranged in the first flange. The positioning strips installed in the first sealing sleeve and the second sealing sleeve are used to complete the positioning of the first sealing sleeve and the second sealing sleeve on the surfaces of the first flange and the second flange.

[0009] Preferably, positioning grooves are symmetrically provided on the surfaces of the two first flanges, and the positioning strip damping card is arranged in the positioning groove. The positioning groove and the positioning strip cooperate with each other. Two positioning grooves are provided on the surface of each first flange, and the two positioning grooves provided on the surface of a first flange cooperate with the positioning strips installed in a first sealing sleeve and a second sealing sleeve respectively to complete the limiting fixation of the first sealing sleeve and the second sealing sleeve. A handle is fixedly installed in the middle of the top surface of the protective cover, and the handle cooperates with the protective cover. The protective cover can be conveniently disassembled and the safety valve body can be adjusted through the handle.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. In the utility model, the two first flanges of the safety valve body cooperate with the corresponding second flanges to complete the connection and fixation of the corresponding gas pipe body. After the connection is completed, the first sealing sleeve and the second sealing sleeve cooperate to complete the protection of the connection between the first flange and the second flange, thereby increasing the sealing performance when the gas pipe body and the safety valve body are connected. This solves the problem that when the existing gas pipe body is connected to the safety valve body only through flanges, the connection between the gas pipe body and the safety valve body is prone to loosening over time, resulting in gas leakage and potential safety hazards.

[0012] 2. In the utility model, after the connection and fixation of the two gas pipe bodies and the safety valve body are completed by the first sealing sleeve and the second sealing sleeve, the installation and fixation of the protective cover are completed by four fixing frames installed on the surfaces of the two first sealing sleeves and four positioning pins installed on the bottom surface of the protective cover. The protective cover is used to protect the safety valve body, so as to prevent the safety valve body from being damaged by sun and rain when used outdoors with the gas pipe body, thereby reducing the service life of the safety valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the overall decomposition structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the safety valve body of the utility model.

[0017] Figure 4 This is a schematic diagram of the exploded structure of the first sealing sleeve, the second sealing sleeve and the protective cover of the utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the first sealing sleeve cooperating with the second sealing sleeve of the utility model.

[0019] In the figure: 1. safety valve body; 11. first flange; 12. bolt; 13. nut; 2. gas pipe body; 21. second flange; 3. first sealing sleeve; 31. fixing frame; 4. second sealing sleeve; 5. fixing piece; 51. positioning buckle; 6. positioning strip; 61. positioning groove; 7. protective cover; 71. positioning pin; 72. handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Figure 1-5 As shown, the utility model provides a gas safety valve for a gas pipeline network, including a safety valve body 1, the safety valve body 1 including a first flange 11, the number of the first flanges 11 is two, both sides of the two first flanges 11 are detachably connected with a gas pipe body 2, the number of the gas pipe body 2 is two, the two gas pipe bodies 2 are fixedly installed with a second flange 21 on one side adjacent to the first flange 11, the first flange 11 and the second flange 21 cooperate with each other, the surfaces of the first flange 11 and the second flange 21 are both sleeved with a first sealing sleeve 3 and a second sealing sleeve 4, the first sealing sleeve 3 and the second sealing sleeve 4 cooperate with each other, the surfaces of the first sealing sleeve 3 and the second sealing sleeve 4 are fixedly installed with fixing members 5 at both ends, the two fixing members 5 are symmetrically installed with positioning buckles 51, the positioning buckles 51 are threadedly clamped in the two fixing members 5, and the positioning buckles 51 cooperate with the fixing members 5;

[0022] The two first flanges 11 of the safety valve body 1 cooperate with the corresponding second flanges 21 to complete the connection and fixation of the corresponding gas pipe body 2. After the connection is completed, the first sealing sleeve 3 and the second sealing sleeve 4 cooperate to complete the protection of the connection between the first flange 11 and the second flange 21. The first sealing sleeve 3 and the second sealing sleeve 4 are fixed to the surfaces of the first flange 11 and the second flange 21 by the fixing piece 5 and the corresponding positioning buckle 51, thereby increasing the sealing performance when the gas pipe body 2 is connected to the safety valve body 1, and solving the problem that when the existing gas pipe body 2 is connected to the safety valve body 1 only by flanges, the connection between the gas pipe body 2 and the safety valve body 1 is prone to loosening over time, resulting in gas leakage and potential safety hazards.

[0023] The surfaces of the two first sealing sleeves 3 are symmetrically mounted with fixing frames 31, the number of the fixing frames 31 is four, the top surfaces of the four fixing frames 31 are detachably mounted with protective covers 7, the four corners of the bottom surface of the protective cover 7 are fixedly mounted with positioning pins 71, the number of the positioning pins 71 is four, the four positioning pins 71 are respectively damped and inserted in the four fixing frames 31, and the positioning pins 71 cooperate with the fixing frames 31;

[0024] By adopting the above technical solution, after the connection and fixation of the two gas pipe bodies 2 and the safety valve body 1 are completed by the first sealing sleeve 3 and the second sealing sleeve 4, the installation and fixation of the protective cover 7 are completed by the four fixing frames 31 installed on the surfaces of the two first sealing sleeves 3 in cooperation with the four positioning pins 71 installed on the bottom surface of the protective cover 7. The safety valve body 1 is protected by the protective cover 7 to prevent the safety valve body 1 from being damaged by sun and rain when used outdoors with the gas pipe body 2, thereby reducing the service life of the safety valve body 1.

[0025] Evenly distributed bolts 12 are inserted into the first flange 11 and the second flange 21, and a nut 13 is threadedly installed at one end of the bolt 12. The first flange 11 and the second flange 21 cooperate with each other through the bolts 12 and the nuts 13;

[0026] By adopting the above technical solution, the first flange 11 and the second flange 21 are connected by the cooperation of the bolts 12 and the nuts 13, thereby completing the connection and fixation of the gas pipe body 2 and the safety valve body 1.

[0027] Positioning strips 6 are symmetrically installed in the first sealing sleeve 3 and the second sealing sleeve 4, and the positioning strips 6 are damped and clamped in the first flange 11;

[0028] By adopting the above technical solution, the first sealing sleeve 3 and the second sealing sleeve 4 are positioned on the surfaces of the first flange 11 and the second flange 21 by means of the positioning strips 6 installed in the first sealing sleeve 3 and the second sealing sleeve 4 .

[0029] The surfaces of the two first flanges 11 are symmetrically provided with positioning grooves 61, and the positioning strips 6 are damped and clamped in the positioning grooves 61, and the positioning grooves 61 and the positioning strips 6 cooperate with each other;

[0030] By adopting the above technical solution, two positioning grooves 61 are provided on the surface of each first flange 11, and the two positioning grooves 61 provided on the surface of a first flange 11 cooperate with the positioning strips 6 installed in a first sealing sleeve 3 and a second sealing sleeve 4 respectively, so as to complete the limiting fixation of the first sealing sleeve 3 and the second sealing sleeve 4.

[0031] A handle 72 is fixedly installed in the middle of the top surface of the protective cover 7, and the handle 72 cooperates with the protective cover 7;

[0032] By adopting the above technical solution, the protective cover 7 can be easily disassembled through the handle 72 and the safety valve body 1 can be adjusted.

[0033] Working principle: The two first flanges 11 of the safety valve body 1 cooperate with the corresponding second flanges 21 to complete the connection and fixation of the corresponding gas pipe body 2. After the connection is completed, the first sealing sleeve 3 and the second sealing sleeve 4 cooperate to complete the protection of the connection between the first flange 11 and the second flange 21. The first sealing sleeve 3 and the second sealing sleeve 4 are fixed on the surface of the first flange 11 and the second flange 21 by the fixing piece 5 and the corresponding positioning buckle 51, thereby increasing the sealing performance when the gas pipe body 2 is connected to the safety valve body 1;

[0034] After the connection and fixation of the two gas pipe bodies 2 and the safety valve body 1 are completed by the first sealing sleeve 3 and the second sealing sleeve 4, the installation and fixation of the protective cover 7 are completed by the four fixing frames 31 installed on the surfaces of the two first sealing sleeves 3 and the four positioning pins 71 installed on the bottom surface of the protective cover 7, and the protection of the safety valve body 1 is completed by the protective cover 7.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A gas safety valve for a gas pipeline network, comprising a safety valve body (1), characterized in that: The safety valve body (1) comprises a first flange (11), the number of the first flanges (11) is two, both sides of the two first flanges (11) are detachably connected to a gas pipe body (2), the number of the gas pipe bodies (2) is two, the side of the two gas pipe bodies (2) adjacent to the first flange (11) is fixedly mounted with a second flange (21), and the first flange (11) and the second flange (21) cooperate with each other; The surfaces of the first flange (11) and the second flange (21) are both sleeved with a first sealing sleeve (3) and a second sealing sleeve (4), the first sealing sleeve (3) and the second sealing sleeve (4) cooperate with each other, fixing members (5) are fixedly installed at both ends of the surfaces of the first sealing sleeve (3) and the second sealing sleeve (4), positioning buckles (51) are symmetrically installed in the two fixing members (5), the positioning buckles (51) are threadedly clamped in the two fixing members (5), and the positioning buckles (51) and the fixing members (5) cooperate with each other.

2. A gas safety valve for a gas pipeline network as claimed in claim 1, characterized in that: The surfaces of the two first sealing sleeves (3) are symmetrically mounted with fixing frames (31), the number of the fixing frames (31) is four, the top surfaces of the four fixing frames (31) are detachably mounted with protective covers (7), the four corners of the bottom surfaces of the protective covers (7) are fixedly mounted with positioning pins (71), the number of the positioning pins (71) is four, the four positioning pins (71) are respectively damped and inserted in the four fixing frames (31), and the positioning pins (71) and the fixing frames (31) cooperate with each other.

3. A gas safety valve for a gas pipeline network as claimed in claim 1, characterized in that: The first flange (11) and the second flange (21) are provided with uniformly distributed bolts (12), one end of the bolts (12) is threadedly mounted with nuts (13), and the first flange (11) and the second flange (21) are matched with each other through the bolts (12) and the nuts (13).

4. A gas safety valve for a gas pipeline network as claimed in claim 1, characterized in that: Positioning strips (6) are symmetrically installed in the first sealing sleeve (3) and the second sealing sleeve (4), and the positioning strips (6) are dampingly clamped in the first flange (11).

5. A gas safety valve for a gas pipeline network as claimed in claim 4, characterized in that: Positioning grooves (61) are symmetrically provided on the surfaces of the two first flanges (11), the positioning strips (6) are damped and clamped in the positioning grooves (61), and the positioning grooves (61) and the positioning strips (6) cooperate with each other.

6. A gas safety valve for a gas pipeline network as claimed in claim 2, characterized in that: A handle (72) is fixedly mounted in the middle of the top surface of the protective cover (7), and the handle (72) and the protective cover (7) cooperate with each other.

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