Flexible U-shaped differential pressure gauge

Abstract

The utility model discloses a flexible U-shaped differential pressure gauge which comprises a hard arc-shaped bent pipe, the left end and the right end of the bent pipe are respectively connected with a first flexible pipe and a second flexible pipe, and scale marks are arranged on the first flexible pipe and the second flexible pipe. According to the utility model, the conventional glass U-shaped differential pressure gauge is improved into a structure of the hard arc-shaped bent pipe and the hose, so that the glass U-shaped differential pressure gauge is not easy to damage and convenient to carry, is not influenced when being used in a section with a narrow local space in an underground coal mine, and has a wide application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible U type differential pressure gauge belongs to coal mine underground pressure test equipment technical field. BACKGROUND

[0002] U type differential pressure gauge is a kind of instrument using hydrostatic balance principle to measure pressure. It is composed of a glass tube bent into U shape, and half height working liquid (such as water, mercury or alcohol) is injected in the tube, and scale is installed between the two vertical pipes of U-shaped tube. When the end of U-shaped tube is communicated with pressure measuring point, liquid level will change, and the size of measured pressure can be determined by the change of liquid level.

[0003] The existing glass U-shaped tube differential pressure gauge is often collided with other hard objects during carrying or using, and the glass tube is damaged, the measuring liquid in the glass tube is lost, and the measured data is inaccurate or even unusable. And for the narrow space in coal mine underground, the existing glass U-shaped differential pressure gauge is inconvenient to use. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problems in the prior art by providing a flexible U-shaped differential pressure gauge.

[0005] The utility model takes the technical scheme that: a flexible U-shaped differential pressure gauge, comprising a hard arc-shaped elbow pipe, the left and right ends of the elbow pipe are connected with first hose and second hose respectively, and scale lines are arranged on the first hose and the second hose.

[0006] Preferably, the elbow pipe is a stainless steel pipe.

[0007] Preferably, the first hose and the second hose are rubber hoses.

[0008] Preferably, the end of the first hose is inverted horn-shaped.

[0009] Preferably, the end of the second hose is circular truncated cone-shaped.

[0010] Preferably, the first hose and the second hose are transparent.

[0011] Preferably, it further comprises a base, the base is fixed with first support rod and second support rod arranged along vertical direction, the upper part of the first support rod is fixed with first clamp for fixing the upper part of the first hose, the first clamp is provided with first adjusting bolt, the upper part of the second support rod is fixed with second clamp for fixing the upper part of the second hose, and the second clamp is provided with second adjusting bolt.

[0012] The utility model has the beneficial effects that:

[0013] 1. Compared with the prior art, the present invention improves the existing glass U-shaped differential pressure gauge into a rigid arc-shaped bend tube with a flexible tube structure, which is not easily damaged, easy to carry, and is not affected by the use in confined spaces in coal mines, thus having a wide range of applications.

[0014] 2. Compared with the prior art, this utility model allows for the measurement of liquid by directly pouring it into the flexible U-shaped differential pressure gauge. When not in use, the liquid can be poured back into a special bottle for storage, making it more convenient to use.

[0015] 3. Compared with the prior art, the present invention facilitates the use of the flexible U-shaped differential pressure gauge by setting a base and other structures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] The reference numerals in the accompanying drawings include: bend 1, first hose 2, second hose 3, base 4, first support rod 5, first clamp 6, first adjusting bolt 7, second support rod 8, second clamp 9, and second adjusting bolt 10. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1:

[0020] Flexible U-shaped differential pressure gauge, such as Figure 1 As shown, it includes a rigid, curved bend 1, which is made of stainless steel. The left and right ends of the bend 1 are respectively connected to a first flexible tube 2 and a second flexible tube 3. The first flexible tube 2 and the second flexible tube 3 are provided with scale lines. The first flexible tube 2 and the second flexible tube 3 are transparent rubber hoses. The upper end of the first flexible tube 2 is shaped like an inverted trumpet to facilitate pouring liquid, and the upper end of the second flexible tube 3 is shaped like a frustum to facilitate pouring liquid. The bend 1, the first flexible tube 2 and the second flexible tube 3 are not easily damaged and are easy to carry. In addition, the first flexible tube 2 and the second flexible tube 3 are flexible and can be bent according to space constraints.

[0021] In this embodiment, as Figure 1As shown, the base 4 is provided, the elbow pipe 1 is vertically placed on the base 4, the parts of the base 4 located at the left side of the first supporting rod 5 and the right side of the second supporting rod 8 are respectively fixed with the first supporting rod 5 and the second supporting rod 8 arranged in the vertical direction, the upper part of the first supporting rod 5 is fixed with the first clamp 6 used for fixing the upper part of the first hose 2, the first adjusting bolt 7 is arranged on the first clamp 6, the upper part of the second supporting rod 8 is fixed with the second clamp 9 used for fixing the upper part of the second hose 3, and the second adjusting bolt 10 is arranged on the second clamp 9. In the embodiment, the upper ends of the first hose 2 and the second hose 3 are fixed, so that the measurement is facilitated.

[0022] During transportation, the base 4 is removed, and during use, the base 4 is installed according to the requirement.

[0023] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the change or replacement within the technical range disclosed by the present application, which should be covered in the protection scope of the present application, therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A flexible U-shaped differential pressure gauge, characterized in that: The device includes a rigid, curved bend, with a first flexible tube and a second flexible tube connected to its left and right ends, respectively. The first and second flexible tubes are marked with graduation lines. The bend is made of stainless steel. The first and second flexible tubes are rubber hoses. The end of the first flexible tube is flared, and the end of the second flexible tube is frustum-shaped. Both the first and second flexible tubes are transparent. The device also includes a base, on which are fixed a first support rod and a second support rod arranged vertically. A first clamp for securing the upper part of the first flexible tube is fixed to the upper part of the first support rod, and a first adjusting bolt is provided on the first clamp. A second clamp for securing the upper part of the second flexible tube is fixed to the upper part of the second support rod, and a second adjusting bolt is provided on the second clamp.

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