Vacuum gauge

Abstract

The utility model relates to the technical field of vacuum gauges, and provides a vacuum gauge which comprises a vacuum gauge body, a connecting pipe is in threaded connection with an air inlet pipe at the bottom of the vacuum gauge body, and the air inlet pipe is fixedly connected with an exposed interface of a pipeline through the connecting pipe; a fixing assembly is further connected between the bottom of the vacuum gauge body and the connecting pipe in a threaded mode and comprises a connecting piece installed on the air inlet pipe, arc-shaped buckles are hinged to the two ends of the connecting piece, and the arc-shaped buckles at the two ends can be mutually encircled to form an annular hoop.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum gauge technical field, concretely relates to a vacuum gauge. BACKGROUND

[0002] Vacuum gauge is also called vacuum gauge, and it is an instrument for measuring vacuum degree or air pressure, generally uses the change of some physical effects of gas under different air pressure to measure air pressure, and is widely used in scientific research and industrial production, but the vacuum gauge in the prior art is screwed with the exposed interface of the pipeline when detecting the pipeline, the connection strength is not high, and the pipeline is easy to shake, thereby driving the shaking of the vacuum gauge, therefore, the utility model provides a kind of vacuum gauge. CONTENT OF UTILITY MODEL

[0003] (1) technical problem solved

[0004] In view of the deficiency of prior art, the utility model provides a kind of vacuum gauge, a pair of arc buckles are arranged on the connecting piece, the two end arc buckles are annularly embraced on the outer wall of the pipeline, the connection strength between the vacuum gauge and the pipeline is increased, and the top of the arc buckle is provided with a gap, so as to adjust the connecting pipe between the vacuum gauge and the pipeline;Extrusion assembly is also installed on the arc buckle, after the adjustment of the connecting pipe and the arc buckle is completed, the extrusion assembly is further used to increase the pressure applied to the pipeline, and the connection is more stable.

[0005] (2) technical scheme

[0006] In order to achieve the above purpose, the utility model is realized by the following technical scheme:

[0007] A kind of vacuum gauge, characterized in that, including: vacuum gauge body, and in the bottom of vacuum gauge body air inlet pipe is screw-connected with connecting pipe, and is connected and fixed with the exposed interface of pipeline by connecting pipe;

[0008] Fixed assembly is also screw-connected between the bottom of vacuum gauge body and connecting pipe, and the fixed assembly includes connecting piece installed on air inlet pipe, and arc buckle is hinged at both ends of connecting piece, and the arc buckle at both ends can be mutually surrounded to form annular hoop.

[0009] Preferably, the top of the annular hoop is provided with a gap.

[0010] Preferably, the bottom of each arc buckle extends outwardly with a mounting plate, and a threaded hole with the same horizontal line is provided on the mounting plate.

[0011] Preferably, each arc buckle is provided with an extrusion assembly, and the extrusion assembly includes a push rod, the push rod penetrates the arc buckle along the outer wall of the arc buckle towards the inside of the annular hoop, and an extrusion head is rotatably connected to the end of the push rod.

[0012] Preferably, the extrusion head is arc-shaped to facilitate conforming to the outer wall of the pipe.

[0013] (III) Beneficial Effects

[0014] The utility model embodiment provides a kind of vacuum gauge. With following beneficial effects:

[0015] 1, by being provided with a pair of arc-shaped buckles on connecting piece, two end arc-shaped buckles are annularly embraced in the outer wall of pipe, increase the connecting strength between vacuum gauge and pipe, and gap is provided in the top of arc-shaped buckle, to facilitate the adjustment pipe between vacuum gauge and pipe;Arc-shaped buckle is also installed with extrusion assembly, can be after the adjustment of connecting pipe and arc-shaped buckle, by extrusion assembly, further increase the pressure exerted to pipe, and connection is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure of the utility model three-dimensional schematic diagram.

[0017] In the drawing:

[0018] 1, vacuum gauge body;

[0019] 2, air inlet pipe;

[0020] 3, fixed assembly;3.1, connecting piece;3.2, arc-shaped buckle;

[0021] 4, extrusion assembly;4.1, push rod;4.2, extrusion head. DETAILED DESCRIPTION

[0022] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the scope of the utility model protection.

[0023] Refer to the attached Figure 1 A kind of vacuum gauge, including vacuum gauge body 1, vacuum gauge body 1 bottom is provided with air inlet pipe 2, air inlet pipe 2 bottom is threadedly connected with connecting pipe, the other end of connecting pipe is threadedly connected on the interface exposed on pipe, and fixed assembly 3 is also threadedly connected between the bottom of vacuum gauge body 1 and connecting pipe, fixed assembly 3 includes connecting piece 3.1 installed in air inlet pipe 2, and arc-shaped buckle 3.2 is hinged in the two ends of connecting piece 3.1, the arc-shaped buckle 3.2 of two ends can be mutually surrounded to form annular hoop, to embrace in the outer wall of pipe;

[0024] The top of the annular hoop is provided with a notch, which reserves space for the structure connection between the connecting pipe and the pipeline. It can be understood that the top of each arc buckle 3.2 is provided with a space with half the size of the notch.

[0025] The bottom of each arc buckle 3.2 extends outwardly with a mounting plate, and a threaded hole in the same horizontal line is provided on the mounting plate, which can be sequentially penetrated by a bolt and cooperated with a nut to fix the two arc buckles 3.2.

[0026] Each arc buckle 3.2 is provided with an extrusion assembly 4, which includes a push rod 4.1 penetrating the arc buckle 3.2 along the outer wall of the arc buckle 3.2 towards the inside of the annular hoop, and an extrusion head 4.2 is installed at the end of the push rod 4.1, which is arc-shaped to fit the outer wall of the pipeline; the push rod 4.1 is in threaded connection with the arc buckle 3.2, and the length of the push rod 4.1 extending into the annular hoop is controlled by rotating the push rod 4.1; the end of the push rod 4.1 and the extrusion head 4.2 are in rotary connection, so as to avoid the extrusion head 4.2 from rotating during the rotation of the push rod 4.1, thereby ensuring that the extrusion head 4.2 fits the outer wall of the pipeline.

[0027] The inner wall of the arc buckle 3.2 is further provided with a groove, in which the extrusion head 4.2 can be retracted; the leading end of the push rod 4.1 is further provided with a handle for easy rotation by the user.

[0028] The wall surface of the extrusion head 4.2 in contact with the outer wall of the pipeline is fitted with a buffer pad to avoid scratching the outer wall of the pipeline.

[0029] In use, the arc buckle 3.2 is initially installed on the pipeline, then the connecting pipe is adjusted and connected with the upper interface of the pipeline, and finally the extrusion assembly 4 is twisted to further enhance the connection strength between the pipeline and the vacuum gauge.

[0030] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without further limitation, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0031] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A vacuum gauge characterized by comprising: The utility model relates to a vacuum gauge, which comprises a vacuum gauge body (1), a connecting pipe is screwed on the air inlet pipe (2) at the bottom of the vacuum gauge body (1), and the connecting pipe is connected and fixed with the exposed interface of the pipeline; A fixing assembly (3) is further screwed between the bottom of the vacuum gauge body (1) and the connecting pipe, the fixing assembly (3) comprises a connecting piece (3.1) installed on the air inlet pipe (2), and an arc-shaped buckle (3.2) is hinged at both ends of the connecting piece (3.1), and the arc-shaped buckles (3.2) at both ends can be combined to form a ring-shaped hoop. A notch is formed at the top of the ring-shaped hoop.

2. A gauge as claimed in claim 1, characterised in that: The bottom of each arc-shaped buckle (3.2) extends outwardly to form a mounting plate, and a threaded hole in the same horizontal line is formed on the mounting plate.

3. A gauge as claimed in claim 2, characterised in that: An extrusion assembly (4) is installed on each arc-shaped buckle (3.2), the extrusion assembly (4) comprises a push rod (4.1) penetrating through the arc-shaped buckle (3.2) along the outer wall of the arc-shaped buckle (3.2) towards the inside of the ring-shaped hoop, and an extrusion head (4.2) is rotatably connected to the end of the push rod (4.1).

4. A gauge as claimed in claim 1, characterised in that: The extrusion head (4.2) is arc-shaped to facilitate the adhesion to the outer wall of the pipeline.

5. A gauge as claimed in claim 4, characterised in that: ​

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