A small pressure regulating box

Abstract

The utility model belongs to the technical field of pressure regulating boxes, and particularly relates to a small precision pressure regulating box, comprising a box body, an inlet end, an outlet end, an air inlet pipe, an inlet valve and a filter integrated in the air inlet pipe, and an inlet pressure gauge arranged on the air inlet pipe, wherein the air inlet pipe is connected to a secondary pressure regulator through a connecting pipe, the secondary pressure regulator is connected to an air outlet pipe, and an outlet valve is arranged on the air outlet pipe. The utility model forms a partial integrated structure through an integrated design, which can make connection more convenient, reduce labor costs, improve installation efficiency, greatly improve the aesthetics, and reduce the volume.

Description

Technical Field

[0001] The utility model belongs to the technical field of voltage regulating boxes, in particular to a small-sized voltage regulating box. Background Art

[0002] A pressure regulating box is a pressure regulating device placed in a special box, located near a building, which is responsible for regulating the gas pressure.

[0003] The pressure regulating box generally includes a box body, an inlet end, an outlet end, an air inlet pipe, an inlet valve, an inlet pressure gauge, a connecting pipe, a secondary pressure regulator, an air outlet pipe, an outlet valve, etc. Some are also equipped with a filter;

[0004] The existing general structure is that the inlet end needs to be connected to the inlet valve in sequence, and the air inlet pipe or other forms of connecting pipes are then connected to the secondary pressure regulator, and the secondary pressure regulator is then connected to the outlet pipe and the outlet valve in sequence. Flange connection is generally adopted, and it needs to be connected one by one. This structure has some defects. It is troublesome to connect, which is very labor-intensive and increases labor costs. It is also large in size and cannot be made into a compact size. The aesthetics is also greatly reduced. In addition, the filter is generally installed on the side, that is, it is installed vertically with the pipeline, which also increases the volume of the product to a certain extent. Utility Model Content

[0005] The utility model provides a small-sized voltage regulating box, which can solve the problems pointed out in the background technology.

[0006] A small precision pressure regulating box comprises a box body, an inlet end, an outlet end, an air inlet pipe, an inlet valve and a filter integrated in the air inlet pipe, and an inlet pressure gauge arranged on the air inlet pipe. The air inlet pipe is connected to a secondary pressure regulator through a connecting pipe, and the secondary pressure regulator is connected to an air outlet pipe, on which an outlet valve is arranged.

[0007] Preferably, the air inlet pipe is vertically arranged, with an inlet valve provided at its lower end, a filter provided at its upper end, and its top end connected to an inlet pressure gauge. The upper end of the air inlet pipe is connected to a connecting pipe, and the connecting pipe is horizontally arranged. The air outlet pipe is vertically arranged and connected to the secondary pressure regulator on the same vertical line, that is, the air inlet pipe, the connecting pipe, the secondary pressure regulator and the air outlet pipe form an "H"-shaped structure.

[0008] Preferably, the air inlet pipe and the air outlet pipe are respectively fixed to the box body through fixing ears.

[0009] Preferably, the filter is connected to the air inlet pipe via a filter gland.

[0010] Preferably, the inlet valve and the outlet valve are both ball valves.

[0011] Preferably, a test interface valve is provided on the air outlet pipe.

[0012] Preferably, the outlet valve is integrated in the air outlet pipe.

[0013] Beneficial effects: The utility model provides a small voltage regulating box with the following beneficial effects:

[0014] 1. The inlet valve and the filter are integrated in the intake pipe, that is, an integrated structure is formed here. The inlet valve is integrated in the intake pipe, and the corresponding part of the intake pipe is the valve body; the filter is integrated in the intake pipe, which changes the side installation method and is embedded in the filter to reduce the volume. There is no need to connect one by one, which is convenient for connection, reduces labor costs, improves installation efficiency, greatly improves the aesthetics, and reduces the volume.

[0015] 2. The outlet valve is integrated in the outlet pipe, and the corresponding part of the outlet valve is the valve body; it also simplifies the connection steps, reduces the volume, and improves the aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is the external schematic diagram of the utility model.

[0018] Description of reference numerals:

[0019] Numbers in the figure: box body 1; inlet end 2; outlet end 3; air inlet pipe 4; inlet valve 5; filter 6; inlet pressure gauge 7; connecting pipe 8; second-stage pressure regulator 9; air outlet pipe 10; outlet valve 11; fixing ear 12; filter gland 13; test interface valve 14. DETAILED DESCRIPTION

[0020] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0021] Embodiment 1:

[0022] like Figure 1-2 As shown, a small-sized pressure regulating box includes a box body 1, an inlet end 2, an outlet end 3, an air inlet pipe 4, an inlet valve 5 and a filter 6 integrated in the air inlet pipe 4, and an inlet pressure gauge 7 arranged on the air inlet pipe 4. The air inlet pipe 4 is connected to a secondary pressure regulator 9 through a connecting pipe 8, and the secondary pressure regulator 9 is connected to an air outlet pipe 10, on which an outlet valve 11 is arranged.

[0023] Specifically, the air inlet pipe 4 is vertically arranged, and an inlet valve 5 is provided at its lower end, a filter 6 is provided at its upper end, and its top end is connected to an inlet pressure gauge 7. The upper end of the air inlet pipe 4 is connected to a connecting pipe 8, and the connecting pipe 8 is horizontally arranged. The air outlet pipe 10 is vertically arranged and connected to the secondary pressure regulator 9 on the same vertical line, that is, the air inlet pipe 4, the connecting pipe 8, the secondary pressure regulator 9 and the air outlet pipe 10 form an "H"-shaped structure. The air inlet pipe 4 and the air outlet pipe 10 are respectively fixed to the box body 1 by fixing ears 12, and the inlet valve 5 and the outlet valve 11 are both ball valves.

[0024] Specifically, the filter 6 is connected to the air intake pipe 4 via the filter gland 13 .

[0025] In some embodiments, a test interface valve 14 is provided on the air outlet pipe 10. The test interface valve 14 has the function of exhausting air. After being emptied, it can be inspected and repaired. It can also be connected to an external pressure gauge for testing.

[0026] In some embodiments, the outlet valve 11 is integrated into the outlet pipe 10 .

[0027] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A small-sized pressure regulating box, comprising a box body (1), an inlet end (2), an outlet end (3), an air inlet pipe (4), an inlet valve (5) and a filter (6) integrated in the air inlet pipe (4), and an inlet pressure gauge (7) arranged on the air inlet pipe (4), wherein the air inlet pipe (4) is connected to a secondary pressure regulator (9) through a connecting pipe (8), the secondary pressure regulator (9) is connected to an air outlet pipe (10), and the air outlet pipe (10) is provided with an outlet valve (11).

2. A compact voltage regulating box according to claim 1, characterized in that: The air inlet pipe (4) is arranged vertically, an inlet valve (5) is arranged in its lower end, a filter (6) is arranged in its upper end, and the top end is connected to an inlet pressure gauge (7). The upper end of the air inlet pipe (4) is connected to a connecting pipe (8), and the connecting pipe (8) is arranged horizontally. The air outlet pipe (10) is arranged vertically and connected to the secondary pressure regulator (9) on the same vertical straight line, that is, the air inlet pipe (4), the connecting pipe (8), the secondary pressure regulator (9) and the air outlet pipe (10) form an "H"-shaped structure.

3. A compact voltage regulating box according to claim 2, characterized in that: The air inlet pipe (4) and the air outlet pipe (10) are respectively fixed to the box body (1) via fixing ears (12).

4. A compact voltage regulating box according to claim 2, characterized in that: The filter (6) is connected to the air intake pipe (4) via a filter gland (13).

5. A small voltage regulating box according to any one of claims 1 to 4, characterized in that: The inlet valve (5) and the outlet valve (11) are both ball valves.

6. A small voltage regulating box according to any one of claims 1 to 4, characterized in that: The air outlet pipe (10) is provided with a test interface valve (14).

7. A small voltage regulating box according to any one of claims 1 to 4, characterized in that: The outlet valve (11) is integrated in the air outlet pipe (10).

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