Liquefied gas safety valve easy to disassemble

Abstract

The utility model relates to the technical field of safety valves, and discloses a liquefied gas safety valve easy to disassemble, which comprises a safety valve shell and a protective shell, and the protective shell is fixedly mounted at the top of the safety valve shell; an inlet base is fixedly installed at the bottom of the safety valve shell, and an outlet flange is fixedly installed on the side face of the safety valve shell. A valve bonnet is fixedly mounted at the top of the protective shell, and a regulating valve is movably mounted in an inner cavity of the valve bonnet. According to the liquefied gas safety valve easy to disassemble, the valve rod is adjusted by rotating and pressing, the spring is driven to work, the liquefied gas safety valve is used for storing and using liquefied gas, threaded grooves are formed in pipe openings of the inlet base and the outlet flange so that a pipeline can be better sealed during sleeving, and the liquefied gas safety valve can be disassembled conveniently; and then the four fixing bolts are rotated and screwed to separate the upper valve clack from the lower valve clack, so that the upper valve clack and the lower valve clack are convenient to disassemble to maintain the internal structure.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to an easily disassembled liquefied gas safety valve. Background Art

[0002] Liquefied gas is a colorless volatile liquid with flammable and explosive properties. When its content in the air reaches a certain concentration range, it can explode when exposed to open flames. Therefore, safety measures need to be taken for the storage and use of liquefied gas. The liquefied gas safety valve is a safety device designed to address the safety issues of liquefied gas. It can control the pressure of liquefied gas and ensure that liquefied gas operates under normal working pressure. It is used to protect the safety of liquefied gas storage and transportation systems and prevent safety accidents caused by abnormal pressure increases.

[0003] The existing liquefied gas safety valve is often not easy to disassemble during use because its closed anti-leakage measures make the structure compact. When the safety valve is damaged and needs maintenance and replacement, its disassembly work will be more difficult and cumbersome. Therefore, a liquefied gas safety valve that is easy to disassemble is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an easily disassembled liquefied gas safety valve, which has the advantages of easy disassembly and stable installation, and solves the problem of compact connection and inconvenient disassembly affecting maintenance and care.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of easy disassembly and stable installation, the utility model provides the following technical solutions: an easily disassembled liquefied gas safety valve, comprising a safety valve housing and a protective shell, wherein the top of the safety valve housing is fixedly installed with the protective shell;

[0008] An inlet base is fixedly installed on the bottom of the safety valve housing, and an outlet flange is fixedly installed on the side of the safety valve housing;

[0009] A valve cap is fixedly mounted on the top of the protective shell, and a regulating valve is movably mounted in the inner cavity of the valve cap.

[0010] As a preferred technical solution of the utility model, thread grooves are provided on the bottom of the inlet base and the inner side of the outlet flange.

[0011] The beneficial effects of the above preferred technical solution are: a threaded groove is provided at the pipe mouth, which facilitates the threaded rotation to connect the pipe, thereby ensuring the sealing during the storage and use of liquefied gas.

[0012] As a preferred technical solution of the utility model, a lower valve disc is fixedly installed on the top of the safety valve housing, an upper valve disc is fixedly connected to the top of the lower valve disc, and four fixing bolts extending to the bottom of the lower valve disc are arranged on the top of the upper valve disc.

[0013] The beneficial effect of the above preferred technical solution is that the upper valve flap and the lower valve flap are fixed to each other by fixing bolts to guide the flow direction of the liquefied gas.

[0014] As a preferred technical solution of the utility model, a clamping bolt is fixedly installed on the outer side of the upper valve disc and the lower valve disc to connect the two, and a threaded shaft is rotatably installed at the center of the outer surface of the clamping bolt.

[0015] The beneficial effects of the above-mentioned preferred technical solution are: the locking bolt connects the upper valve disc and the lower valve disc for further safety and fixation. When the two need to be disassembled, the threaded shaft at the center of the locking bolt can be rotated to separate the locking bolt into two parts, which are respectively fixed on the outside of the upper valve disc and the lower valve disc, and then the two can be disassembled and separated by fixing bolts.

[0016] As a preferred technical solution of the utility model, a spring is movably installed in the inner cavity of the protective shell, an adjusting groove is opened on the outer wall side of the valve cap, a regulating valve connected to the spring is fixedly installed on the inner side of the adjusting groove, a valve stem rotating shaft is clamped in the recessed part of the regulating valve, and a regulating valve stem is rotatably installed on the outer surface of the valve stem rotating shaft.

[0017] The beneficial effect of the above preferred technical solution is: by rotating and pressing the regulating valve stem, the spring is driven to work, which is used for the storage and use of liquefied gas.

[0018] As a preferred technical solution of the utility model, both left and right ends of the regulating valve are threadedly connected with regulating bolts installed in the inner cavity of the protective shell, and both left and right ends of the valve stem shaft are provided with engaging columns penetrating the recessed part of the regulating valve.

[0019] The beneficial effects of the above preferred technical solution are: the regulating valve can be removed from the regulating groove by threadedly rotating the two adjusting bolts, and the regulating valve stem can be separated from the outer surface of the valve stem shaft by rotating and pulling out the engaging column.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a liquefied gas safety valve that is easy to disassemble, which has the following beneficial effects:

[0022] The easily disassembled liquefied gas safety valve drives a spring to work by rotating a press-fit regulating valve stem, and is used for the storage and use of liquefied gas. Since the pipe openings of the inlet base and the outlet flange are both provided with threaded grooves, it is convenient to better seal when sleeved with a pipeline and is also easy to disassemble.

[0023] The easily disassembled liquefied gas safety valve can be easily disassembled to maintain the internal structure by rotating the clamping bolt to disconnect the upper valve disc and the lower valve disc, and then rotating and twisting four fixing bolts to separate the upper valve disc and the lower valve disc.

[0024] The easily disassembled liquefied gas safety valve can be disassembled from the regulating groove by threading two adjusting bolts, and then the protective shell can be threadedly rotated to expose the spring and the internal structure, which is conducive to replacing related parts and adjusting the accuracy of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the locking bolt of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the regulating valve of the utility model.

[0028] In the figure: 1. Safety valve housing; 2. Inlet base; 3. Outlet flange; 4. Protective shell; 5. Valve bonnet; 51. Adjustment groove; 6. Adjustment valve; 61. Valve stem shaft; 62. Adjustment bolt; 7. Adjustment valve stem; 8. Spring; 9. Fixing bolt; 10. Upper valve disc; 11. Lower valve disc; 12. Locking bolt; 13. Threaded groove. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1-3 A liquefied gas safety valve that is easily disassembled comprises a safety valve housing 1 and a protective shell 4, wherein the protective shell 4 is fixedly installed on the top of the safety valve housing 1.

[0033] An inlet base 2 is fixedly mounted on the bottom of the safety valve housing 1 , and an outlet flange 3 is fixedly mounted on the side of the safety valve housing 1 .

[0034] In this embodiment, a thread groove 13 is provided at the bottom of the inlet base 2 and the inner side of the outlet flange 3. The thread groove 13 is provided at the pipe mouth to facilitate threaded rotation to connect the pipeline, thereby ensuring the sealing during storage and use of liquefied gas.

[0035] In this embodiment, a lower valve flap 11 is fixedly installed on the top of the safety valve housing 1, and an upper valve flap 10 is fixedly connected to the top of the lower valve flap 11. Four fixing bolts 9 extending to the bottom of the lower valve flap 11 are provided on the top of the upper valve flap 10. The upper valve flap 10 and the lower valve flap 11 are fixed together by the fixing bolts 9 to guide the flow direction of the liquefied gas.

[0036] In this embodiment, a locking bolt 12 is fixedly installed on the outer side of the upper valve flap 10 and the lower valve flap 11 to connect the two. A threaded shaft is rotatably installed at the center of the outer surface of the locking bolt 12. The locking bolt 12 connects the upper valve flap 10 and the lower valve flap 11 for further safety and fixation. When the two need to be disassembled, the threaded shaft at the center of the locking bolt 12 can be rotated to separate the locking bolt 12 into two parts, which are respectively fixedly installed on the outer sides of the upper valve flap 10 and the lower valve flap 11, and then the two can be disassembled and separated by the fixing bolt 9.

[0037] A valve cap 5 is fixedly mounted on the top of the protective shell 4 , and a regulating valve 6 is movably mounted in the inner cavity of the valve cap 5 .

[0038] In this embodiment, a spring 8 is movably installed in the inner cavity of the protective shell 4, an adjusting groove 51 is opened on the outer wall side of the valve cap 5, and a regulating valve 6 connected to the spring 8 is fixedly installed on the inner side of the adjusting groove 51. A valve stem shaft 61 is clamped in the recessed part of the regulating valve 6, and a regulating valve stem 7 is rotatably installed on the outer surface of the valve stem shaft 61. The regulating valve stem 7 is rotated and pressed to drive the spring 8 to work for the storage and use of liquefied gas.

[0039] In this embodiment, the left and right ends of the regulating valve 6 are threadedly connected with adjusting bolts 62 installed in the inner cavity of the protective shell 4. The regulating valve 6 is removed from the regulating groove 51 by threadedly rotating the two adjusting bolts 62. The left and right ends of the valve stem shaft 61 are provided with locking columns that penetrate the recessed part of the regulating valve 6. The regulating valve stem 7 can also be separated from the outer surface of the valve stem shaft 61 by rotating and pulling out the locking columns.

[0040] The beneficial effects of the above embodiment are:

[0041] By rotating and pressing the regulating valve stem 7, the spring 8 is driven to work for the storage and use of liquefied gas. Since the pipe openings of the inlet base 2 and the outlet flange 3 are both provided with threaded grooves 13, it is convenient to better seal when the pipeline is sleeved and also easy to disassemble.

[0042] By rotating the locking bolt 12, the locking bolt 12 disconnects the upper valve flap 10 and the lower valve flap 11, and then rotating and screwing the four fixing bolts 9 to separate the upper valve flap 10 and the lower valve flap 11, it is convenient to disassemble and maintain the internal structure.

[0043] The regulating valve 6 is removed from the regulating groove 51 by threading the two adjusting bolts 62 , and the protective shell 4 is then threadedly rotated to expose the spring 8 and the internal structure, which is convenient for replacing related parts and adjusting the accuracy of the spring 8 .

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquefied gas safety valve that is easily disassembled, comprising a safety valve housing (1) and a protective shell (4), wherein the protective shell (4) is fixedly mounted on the top of the safety valve housing (1); Features: An inlet base (2) is fixedly mounted on the bottom of the safety valve housing (1), an outlet flange (3) is fixedly mounted on the side of the safety valve housing (1), a lower valve disc (11) is fixedly mounted on the top of the safety valve housing (1), an upper valve disc (10) is fixedly connected to the top of the lower valve disc (11), four fixing bolts (9) extending to the bottom of the lower valve disc (11) are arranged on the top of the upper valve disc (10), a clamping bolt (12) for connecting the upper valve disc (10) and the lower valve disc (11) is fixedly mounted on the outer side of the upper valve disc (10) and the lower valve disc (11), and a threaded shaft is rotatably mounted at the center of the outer surface of the clamping bolt (12); A valve cap (5) is fixedly mounted on the top of the protective shell (4), and a regulating valve (6) is movably mounted in the inner cavity of the valve cap (5).

2. The easily disassembled liquefied gas safety valve according to claim 1, characterized in that: The bottom of the inlet base (2) and the inner side of the outlet flange (3) are both provided with threaded grooves (13).

3. The easily disassembled liquefied gas safety valve according to claim 1, characterized in that: A spring (8) is movably mounted in the inner cavity of the protective shell (4); an adjusting groove (51) is provided on the outer wall side of the valve cap (5); a regulating valve (6) connected to the spring (8) is fixedly mounted on the inner side of the regulating groove (51); a valve stem rotating shaft (61) is clamped in the recessed part of the regulating valve (6); and a regulating valve stem (7) is rotatably mounted on the outer surface of the valve stem rotating shaft (61).

4. The easily disassembled liquefied gas safety valve according to claim 3, characterized in that: The left and right ends of the regulating valve (6) are both threadedly connected with regulating bolts (62) installed in the inner cavity of the protective shell (4), and the left and right ends of the valve stem rotating shaft (61) are both provided with engaging columns penetrating the recessed part of the regulating valve (6).

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