Safe pressure regulating device for bottled fuel gas

Abstract

The utility model discloses a bottled fuel gas safety pressure regulating device which comprises an installation shell, a lower through hole and an upper through hole are formed in the bottom and the top of the installation shell respectively, a connecting base is fixed to the bottom of the installation shell, a through pipe penetrating through the lower through hole is fixed to the top of the connecting base, a protective shell is installed on the top of the installation shell, and a pressure regulating valve is installed on the protective shell. A discharge port is formed in one side of the mounting shell; a plugging assembly is mounted in the protective shell, and a limiting assembly for limiting the plugging assembly is mounted in the mounting shell; the plugging assembly comprises a plugging plate, a connecting rod, a fixing ring, a pressing disc and a spring, and the connecting rod is fixed to the top of the plugging plate. Through the detachable protective shell and the pressing disc installed in the protective shell in a threaded mode, the protective shell can be detached firstly, then the connecting rod is pulled out, the connecting rod spring can be taken out conveniently to be replaced, the problem that the elasticity is reduced due to long-term use of the spring is solved, the spring force can be adjusted conveniently, and the pressure threshold value can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulating devices, in particular to a safety pressure regulating device for bottled gas. Background Technique

[0002] At present, some gases are bottled and placed in the kitchen to connect with gas stoves for urban residents and industrial enterprises. There are many types of gases, mainly including natural gas, artificial gas, liquefied petroleum gas, biogas, and coal gas.

[0003] When residents use coal gas, they usually inject it into a gas cylinder for storage for subsequent use. A gas cylinder valve is installed on the gas cylinder. By opening the valve, the gas in the gas cylinder is released for use, or the gas is injected into the gas cylinder. When the injected gas is excessive or the working environment temperature of the gas cylinder is relatively high, the air pressure in the gas cylinder becomes too high and pressure relief is required.

[0004] Most of the gas cylinder valves currently on the market are internal spring extrusion sealing plugs. The sealing plug is extruded by air pressure, causing the spring to deform to achieve pressure relief. Since the spring is a consumable part and is in a working state for a long time, it is prone to wear, resulting in a decrease in elastic force and being inconvenient to replace. For this reason, we designed a safety pressure regulating device for bottled gas to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a safety pressure regulating device for bottled gas.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A safety pressure regulating device for bottled gas includes an installation shell. Lower through holes and upper through holes are respectively opened at the bottom and top of the installation shell. A connection seat is fixed at the bottom of the installation shell. A through pipe passing through the lower through hole is fixed at the top of the connection seat. A protective shell is installed at the top of the installation shell. A discharge port is arranged on one side of the installation shell;

[0008] A plugging component is installed inside the protective shell, and a limiting component for limiting the plugging component is installed inside the installation shell;

[0009] The plugging component includes a plug plate, a connecting rod, a fixing ring, a pressure plate, and a spring. The connecting rod is fixed at the top of the plug plate. The fixing ring is fixedly sleeved on the outer wall of the bottom of the connecting rod. The pressure plate is installed on the inner wall of the protective shell. The connecting rod passes through the hole opened on the pressure plate. The spring is located between the pressure plate and the fixing ring and is sleeved on the outer wall of the connecting rod.

[0010] As a further solution of the present utility model, an internal thread is provided on the inner wall of the protective shell, an external thread is provided on the outer wall of the pressure plate, the pressure plate is threadedly connected to the inner wall of the protective shell, and a plurality of dial blocks are uniformly fixed to the bottom of the pressure plate.

[0011] As a further solution of the present utility model, a thimble is fixed to the top of the connecting rod, the thimble movably passes through a hole provided on the protective shell, and a sealing ring is provided in the hole.

[0012] As a further solution of the present utility model, the limiting component includes two pressure plates symmetrically arranged inside the mounting shell, the two pressure plates are located above the plug plate, two threaded rods are fixed to the top of the pressure plate, a mounting strip is installed on the threaded rod, and a notch adapted to the mounting strip is provided on the top of the mounting shell.

[0013] As a further solution of the present utility model, the mounting strip is sleeved on the outer wall of the threaded rod, and two nuts are threadedly installed on the outer wall of the threaded rod, and the two nuts respectively press against the top and bottom of the mounting strip.

[0014] As a further solution of the present utility model, a flange is fixed to the bottom of the protective shell, and the flange is fixed to the top of the mounting shell by bolts.

[0015] The beneficial effects of the present utility model are as follows:

[0016] In the present utility model: The plugging component includes a pressure plate, a connecting rod, a fixing ring, a pressure plate and a spring, and the pressure plate is threadedly connected to the inner wall of the protective shell. When the internal pressure of the gas cylinder is greater than the set pressure, the air pressure jacks up the plug plate, causing the spring to contract and release the air pressure. In this utility model, through the detachable protective shell and the pressure plate threadedly installed inside the protective shell, the protective shell can be first disassembled, and then the connecting rod can be pulled out, which is convenient for taking out the connecting rod spring for replacement, solving the problem that the elasticity of the spring decreases after long-term use.

[0017] In the present utility model: The pressure plate threadedly installed on the inner wall of the protective shell is convenient for adjusting the position of the pressure plate, adjusting the spring force of the spring, and controlling the pressure threshold. The limiting component includes a mounting strip, a threaded rod, a pressure plate, a nut and a notch. The two pressure plates provided are used for limiting and controlling the plug plate, and at the same time preventing the plug plate from moving up too much and damaging the spring. And by adjusting the nut, the position of the mounting strip can be controlled to realize the adjustment of the height of the pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural diagram of a bottled gas safety pressure regulating device proposed by the present utility model;

[0019] Figure 2 is an internal three-dimensional structural diagram of a bottled gas safety pressure regulating device proposed by the present utility model;

[0020] Figure 3 Explosion three-dimensional structure diagram of a bottled gas safety pressure regulating device proposed by the present utility model;

[0021] Figure 4 Three-dimensional structure diagram of a plugging component of a bottled gas safety pressure regulating device proposed by the present utility model.

[0022] In the figure: 1, installation shell; 2, discharge port; 3, connection seat; 4, through pipe; 5, protective shell; 6, lower through hole; 7, upper through hole; 8, plugging component; 801, plug plate; 802, connecting rod; 803, fixing ring; 804, pressing disc; 805, spring; 9, limiting component; 10, notch; 11, dial block; 12, installation strip; 13, threaded rod; 14, pressing plate; 15, nut; 16, flange; 17, thimble. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Next, the present utility model will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0025] Refer to Figures 1-4 , a bottled gas safety pressure regulating device, including an installation shell 1, a lower through hole 6 and an upper through hole 7 are respectively opened at the bottom and top of the installation shell 1, a connection seat 3 is fixed at the bottom of the installation shell 1, a through pipe 4 passing through the lower through hole 6 is fixed at the top of the connection seat 3, a protective shell 5 is installed at the top of the installation shell 1, and a discharge port 2 is arranged on one side of the installation shell 1;

[0026] A plugging component 8 is installed inside the protective shell 5, and a limiting component 9 for limiting the plugging component 8 is installed inside the installation shell 1;

[0027] The plugging component 8 includes a plug plate 801, a connecting rod 802, a fixing ring 803, a pressing disc 804 and a spring 805. The connecting rod 802 is fixed at the top of the plug plate 801. The fixing ring 803 is fixedly sleeved at the bottom of the outer wall of the connecting rod 802. The pressing disc 804 is installed on the inner wall of the protective shell 5. The connecting rod 802 passes through the hole opened on the pressing disc 804. The spring 805 is located between the pressing disc 804 and the fixing ring 803 and is sleeved on the outer wall of the connecting rod 802.

[0028] In this embodiment, internal threads are provided on the inner wall of the protective shell 5, external threads are provided on the outer wall of the pressure plate 804, the pressure plate 804 is threadedly connected to the inner wall of the protective shell 5, and a plurality of dial blocks 11 are uniformly fixed to the bottom of the pressure plate 804, facilitating the rotation adjustment of the height by rotating the pressure plate 804 through the dial blocks 11.

[0029] In this embodiment, a thimble 17 is fixed to the top of the connecting rod 802, the thimble 17 movably passes through a hole provided in the protective shell 5, and a sealing ring is provided in the hole. The provided thimble 17 facilitates the intuitive observation of whether pressure relief is performed.

[0030] In this embodiment, the limiting component 9 includes two pressing plates 14 symmetrically arranged inside the mounting shell 1. The two pressing plates 14 are located above the plug plate 801. Two threaded rods 13 are fixed to the top of the pressing plate 14. An installation strip 12 is installed on the threaded rods 13. A notch 10 adapted to the installation strip 12 is provided at the top of the mounting shell 1. The installation strip 12 is sleeved on the outer wall of the threaded rod 13. Two nuts 15 are threadedly installed on the outer wall of the threaded rod 13. The two nuts 15 respectively press against the top and bottom of the installation strip 12. The limiting component 9 includes the installation strip 12, the threaded rods 13, the pressing plates 14, the nuts 15 and the notch 10. The two provided pressing plates 14 are used to limit and control the plug plate 801, and at the same time prevent the plug plate 801 from moving upwards excessively and damaging the spring 805. And by adjusting the nuts 15, the position of the installation strip 12 can be controlled to realize the adjustment of the height of the pressing plate 14. The installation strip 12 can be installed in a hidden manner inside the provided notch 10.

[0031] In this embodiment, a flange 16 is fixed to the bottom of the protective shell 5, and the flange 16 is fixed to the top of the mounting shell 1 by bolts.

[0032] Working principle: When in use, through the installed housing 1, drain port 2, connecting seat 3, through pipe 4, protective housing 5 and plugging component 8, where the plugging component 8 includes a pressure plate 804, connecting rod 802, fixing ring 803, pressure plate 804 and spring 805, and the pressure plate 804 is threadedly connected to the inner wall of the protective housing 5. In the natural state, the spring 805 can squeeze the fixing ring 803, so that the plug plate 801 can block the opening of the through pipe 4, playing a role in sealing and preventing leakage. When the internal pressure of the gas cylinder is greater than the set pressure, the pressure lifts the plug plate 801, causing the spring 805 to contract and release the pressure. When the pressure reaches the set value, the plug plate 801 moves down to block. In this utility model, through the detachable protective housing 5 and the pressure plate 804 threadedly installed inside the protective housing 5, the protective housing 5 can be first disassembled, and then the connecting rod 802 can be pulled out, which is convenient for taking out the connecting rod 802 and the spring 805 for replacement, solving the problem that the elasticity of the spring 805 decreases after long-term use; at the same time, the pressure plate 804 threadedly installed on the inner wall of the protective housing 5 is convenient for adjusting the position of the pressure plate 804, adjusting the spring force of the spring 805, and controlling the pressure threshold. At the same time, the set limiting component 9 is provided, where the limiting component 9 includes a mounting strip 12, a threaded rod 13, a pressing plate 14, a nut 15 and a notch 10. The two provided pressing plates 14 are used to limit and control the plug plate 801, and at the same time prevent the plug plate 801 from moving up too much and damaging the spring 805. And by adjusting the nut 15, the position of the mounting strip 12 can be controlled to realize the adjustment of the height of the pressing plate 14, and the mounting strip 12 can be hiddenly installed inside the provided notch 10.

[0033] For the sake of convenience of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will be positioned as "below" or "under" other devices or structures after inversion. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0034] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and / or combinations thereof.

[0035] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bottled gas safety pressure regulating device, comprising a mounting shell (1), characterized in that: The bottom and top of the installation shell (1) are respectively provided with a lower through hole (6) and an upper through hole (7); a connecting seat (3) is fixed to the bottom of the installation shell (1); a through pipe (4) passing through the lower through hole (6) is fixed to the top of the connecting seat (3); a protective shell (5) is installed on the top of the installation shell (1); and a discharge port (2) is provided on one side of the installation shell (1); A blocking component (8) is installed inside the protective shell (5), and a limiting component (9) for limiting the blocking component (8) is installed inside the installation shell (1); The blocking assembly (8) comprises a plug plate (801), a connecting rod (802), a fixing ring (803), a pressure plate (804) and a spring (805); the connecting rod (802) is fixed to the top of the plug plate (801); the fixing ring (803) is fixedly sleeved on the bottom of the outer wall of the connecting rod (802); the pressure plate (804) is installed on the inner wall of the protective shell (5); the connecting rod (802) passes through a hole opened on the pressure plate (804); and the spring (805) is located between the pressure plate (804) and the fixing ring (803) and sleeved on the outer wall of the connecting rod (802).

2. A bottled gas safety pressure regulating device according to claim 1, characterized in that: The inner wall of the protective shell (5) is provided with an internal thread, the outer wall of the pressure plate (804) is provided with an external thread, the pressure plate (804) is threadedly connected to the inner wall of the protective shell (5), and a plurality of shifting blocks (11) are evenly fixed on the bottom of the pressure plate (804).

3. A bottled gas safety pressure regulating device according to claim 2, characterized in that: A thimble (17) is fixed on the top of the connecting rod (802), and the thimble (17) movably passes through a hole opened on the protective shell (5), and a sealing ring is arranged in the hole.

4. A bottled gas safety pressure regulating device according to claim 3, characterized in that: The limiting assembly (9) comprises two pressure plates (14) symmetrically arranged inside the mounting shell (1), the two pressure plates (14) being located above the plug plate (801), two threaded rods (13) being fixed on the top of the pressure plates (14), a mounting strip (12) being mounted on the threaded rods (13), and a notch (10) adapted to the mounting strip (12) being provided on the top of the mounting shell (1).

5. A bottled gas safety pressure regulating device according to claim 4, characterized in that: The installation strip (12) is sleeved on the outer wall of the threaded rod (13), and two nuts (15) are threadedly installed on the outer wall of the threaded rod (13), and the two nuts (15) are respectively pressed on the top and bottom of the installation strip (12).

6. A bottled gas safety pressure regulating device according to claim 5, characterized in that: A flange (16) is fixed to the bottom of the protective shell (5), and the flange (16) is fixed to the top of the mounting shell (1) by bolts.

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