Pressure gauge adapter

Abstract

The utility model relates to the technical field of pressure detection equipment, and discloses a pressure gauge adapter, which comprises a pressure gauge and a pressure pipe, the bottom of the pressure gauge is fixedly provided with a first connecting pipe, and the surface of the pressure pipe is fixedly provided with a second connecting pipe. According to the pressure gauge adapter, the buffer tube is arranged between the pressure gauge and the pressure tube, so that the pressure in the pressure tube is buffered by the buffer tube and then enters the pressure gauge, and the problem that when the pressure gauge is communicated with the pressure tube, the pressure in the pressure tube can be directly transmitted into the pressure gauge, and the pressure cannot be directly transmitted at the moment when the pressure is connected is solved. The problems that the pressure gauge is damaged and the service life of the pressure gauge is shortened due to the fact that the pressure gauge is subjected to huge pressure impact when the pressure gauge is connected are solved, the huge impact on the pressure gauge at the moment of pressure connection is reduced through the buffer pipe, the pressure gauge can work in a relatively stable environment, and the service life of the pressure gauge is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection equipment, in particular to a pressure gauge conversion joint. Background Art

[0002] A pressure gauge is an instrument that uses an elastic element as a sensitive element to measure and indicate pressure higher than the ambient pressure. It is extremely common and is found in almost all industrial processes and scientific research fields. It can be found everywhere in thermal pipelines, oil and gas transmission, water and gas supply systems, vehicle repair and maintenance shops, etc. Especially in the process of industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used because their elastic sensitive elements have high mechanical strength and are easy to produce.

[0003] A pressure gauge conversion joint is needed to connect the pressure gauge to the pressure pipe. The pressure gauge conversion joint is a connector used to connect the equipment or pipeline of the measured medium and the pressure gauge. There are various forms of pressure gauge joints, including welded pipe joints, expansion joints, tee intermediate joints, elbow intermediate joints, straight intermediate joints, straight cone pipe joints, pressure gauge straight joints, ferrule pipe joints, etc.

[0004] A common pressure gauge conversion joint, when the pressure gauge is connected to a pressure pipe, the pressure in the pressure pipe will be directly transmitted to the inside of the pressure gauge. At the moment the pressure is connected, the pressure gauge will be subjected to a huge pressure shock. Such multiple shocks can easily cause damage to the pressure gauge and reduce the service life of the pressure gauge. In view of this, the present application proposes a pressure gauge conversion joint. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pressure gauge conversion joint, which has the advantages of buffering the impact pressure received by the pressure gauge at the moment the pressure is connected, etc., and solves the problem that when the pressure gauge is connected to the pressure pipe, the pressure in the pressure pipe will be directly transmitted to the inside of the pressure gauge. At the moment the pressure is connected, the pressure gauge will be subjected to a huge pressure impact. Such multiple impacts can easily cause damage to the pressure gauge and reduce the service life of the pressure gauge.

[0006] In order to achieve the above-mentioned purpose of buffering the impact pressure received by the pressure gauge at the moment of connecting the pressure, the utility model provides the following technical solutions: a pressure gauge conversion joint, comprising a pressure gauge and a pressure pipe, a first connecting pipe is fixedly installed at the bottom of the pressure gauge, a second connecting pipe is fixedly installed on the surface of the pressure pipe, and the first connecting pipe and the second connecting pipe are connected through a joint and a buffer pipe;

[0007] The buffer tube comprises end tubes rotatably connected to joints at both ends, and a winding tube is fixedly installed between the end tubes at both ends.

[0008] Furthermore, an externally threaded pipe is fixedly mounted on the bottom of the first connecting pipe, an internal thread matching the externally threaded pipe is provided inside the joint, and the joint is threadedly connected to the externally threaded pipe.

[0009] Furthermore, the surface of the second connecting pipe is provided with external threads, the internal threads inside the joint are matched with the external threads on the surface of the second connecting pipe, and the joint is threadedly connected to the second connecting pipe.

[0010] Furthermore, a butt joint pipe is fixedly installed at one end of the end pipe, the outer diameter of the butt joint pipe is smaller than the inner diameters of the first connecting pipe and the second connecting pipe, and the butt joint pipe is slidably connected to the first connecting pipe and the second connecting pipe.

[0011] Furthermore, a sealing ring is fixedly installed at one end of the end pipe, and the sealing ring is in contact with the external threaded pipe and the second connecting pipe.

[0012] Furthermore, a connection block is fixedly mounted on the inner side wall of the joint, and a connection groove matching the connection block is formed on the surface of the end pipe.

[0013] Furthermore, a connecting valve is fixedly installed on the surface of one of the end pipes, and a heating wire is wound around the surface of the winding pipe.

[0014] Compared with the prior art, the utility model provides a pressure gauge conversion joint, which has the following beneficial effects:

[0015] The pressure gauge conversion joint provides a buffer tube between the pressure gauge and the pressure tube so that the pressure in the pressure tube is buffered by the buffer tube before entering the pressure gauge. This solves the problem that when the pressure gauge is connected to the pressure tube, the pressure in the pressure tube is directly transmitted to the inside of the pressure gauge. At the moment the pressure is connected, the pressure gauge is subjected to a huge pressure shock. Such multiple shocks can easily cause damage to the pressure gauge and reduce the service life of the pressure gauge. The buffer tube reduces the huge shock to the pressure gauge at the moment the pressure is connected, so that the pressure gauge can work in a relatively stable environment, thereby increasing the service life of the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a side view of the structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the connection between the connector of the utility model and the first connecting pipe.

[0019] In the figure: 1. pressure gauge; 2. pressure pipe; 3. first connecting pipe; 301. external threaded pipe; 4. second connecting pipe; 5. joint; 501. internal thread; 502. connecting block; 6. buffer tube; 61. end tube; 611. butt tube; 612. sealing ring; 613. connecting groove; 62. winding pipe; 7. connecting valve; 8. heating wire. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 A pressure gauge conversion joint includes a pressure gauge 1 and a pressure tube 2. A first connecting tube 3 is fixedly installed on the bottom of the pressure gauge 1, and a second connecting tube 4 is fixedly installed on the surface of the pressure tube 2. The first connecting tube 3 and the second connecting tube 4 are connected through a joint 5 and a buffer tube 6. When the pressure tube 2 transfers the internal pressure to the inside of the pressure gauge 1 through the buffer tube 6, a buffer area is formed to buffer the pressure, so that the pressure contacts the pressure gauge 1 relatively smoothly, thereby increasing the service life of the pressure gauge 1.

[0022] The buffer tube 6 includes end tubes 61 rotatably connected to the joint 5 at both ends, and a winding tube 62 is fixedly installed between the end tubes 61 at both ends. The winding tube 62 is wound around the end tubes 61 at both ends to extend the originally straight connecting tube and play a buffering role.

[0023] At the same time, an external threaded pipe 301 is fixedly installed at the bottom of the first connecting pipe 3 , an internal thread 501 matching the external threaded pipe 301 is provided inside the joint 5 , and the joint 5 is threadedly connected to the external threaded pipe 301 .

[0024] The surface of the second connecting pipe 4 is provided with external threads, the internal internal threads 501 of the joint 5 are matched with the external threads on the surface of the second connecting pipe 4 , and the joint 5 is threadedly connected to the second connecting pipe 4 .

[0025] At the same time, a butt joint pipe 611 is fixedly installed at one end of the end pipe 61 , the outer diameter of the butt joint pipe 611 is smaller than the inner diameter of the first connecting pipe 3 and the second connecting pipe 4 , and the butt joint pipe 611 is slidably connected to the first connecting pipe 3 and the second connecting pipe 4 .

[0026] A sealing ring 612 is fixedly installed at one end of the end pipe 61 , and the sealing ring 612 is in contact with the external threaded pipe 301 and the second connecting pipe 4 , so that the sealing ring 612 increases the sealing performance of the connection.

[0027] Secondly, a connecting block 502 is fixedly installed on the inner wall of the joint 5, and a connecting groove 613 adapted to the connecting block 502 is opened on the surface of the end pipe 61. The joint 5 is rotated on the surface of the end pipe 61 and threadedly connected with the first connecting pipe 3 and the second connecting pipe 4. At this time, the connecting pipe 611 is inserted into the interior of the first connecting pipe 3 and the second connecting pipe 4 to complete the connection.

[0028] Finally, a connecting valve 7 is fixedly installed on the surface of one of the end tubes 61. The connecting valve 7 acts as a switch for opening and closing the connection between the pressure gauge 1 and the pressure tube 2. A heating wire 8 is wound around the surface of the winding tube 62. When the temperature is low, the heating wire 8 is connected to a power source to heat the winding tube 62 to prevent the liquid inside the winding tube 62 from freezing and causing damage to the pressure gauge 1.

[0029] When the present embodiment is in use, the first connecting tube 3 of the pressure gauge 1 is connected to the end tube 61 through the connector 5, and then the second connecting tube 4 of the pressure tube 2 is connected to the end tube 61 through the connector 5, and the connecting valve 7 is opened to release the liquid inside the pressure tube 2, so that the pressure gauge 1 and the pressure tube 2 are connected, and the pressure of the pressure tube 2 is measured. At the same time, the winding tube 62 buffers the pressure, so that the pressure on the pressure gauge 1 is relatively stable and will not be affected by the impact pressure at the moment of connection, thereby increasing the service life of the pressure gauge 1. When the temperature is low, in order to prevent the pressure gauge 1 from being frozen and damaged, the heating wire 8 is connected to the power supply to heat the winding tube 62, so that the temperature of the liquid inside the pressure gauge 1 and the buffer tube 6 rises to prevent it from condensing.

[0030] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] 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 pressure gauge conversion joint, comprising a pressure gauge (1) and a pressure pipe (2), characterized in that: A first connecting pipe (3) is fixedly mounted on the bottom of the pressure gauge (1), a second connecting pipe (4) is fixedly mounted on the surface of the pressure pipe (2), and the first connecting pipe (3) and the second connecting pipe (4) are connected via a joint (5) and a buffer pipe (6); The buffer tube (6) comprises end tubes (61) rotatably connected to the joints (5) at both ends, and a winding tube (62) is fixedly installed between the end tubes (61) at both ends.

2. A pressure gauge conversion joint according to claim 1, characterized in that: An externally threaded pipe (301) is fixedly mounted on the bottom of the first connecting pipe (3), an internal thread (501) matching the externally threaded pipe (301) is provided inside the joint (5), and the joint (5) is threadedly connected to the externally threaded pipe (301).

3. A pressure gauge conversion joint according to claim 2, characterized in that: The surface of the second connecting pipe (4) is provided with an external thread, the internal internal thread (501) of the joint (5) is adapted to the external thread on the surface of the second connecting pipe (4), and the joint (5) is threadedly connected to the second connecting pipe (4).

4. A pressure gauge conversion joint according to claim 1, characterized in that: A butt joint pipe (611) is fixedly mounted on one end of the end pipe (61); the outer diameter of the butt joint pipe (611) is smaller than the inner diameters of the first connecting pipe (3) and the second connecting pipe (4); and the butt joint pipe (611) is slidably connected to the first connecting pipe (3) and the second connecting pipe (4).

5. The pressure gauge conversion joint according to claim 2, characterized in that: A sealing ring (612) is fixedly mounted on one end of the end pipe (61), and the sealing ring (612) is in contact with the external threaded pipe (301) and the second connecting pipe (4).

6. The pressure gauge conversion joint according to claim 1, characterized in that: A connection block (502) is fixedly mounted on the inner side wall of the joint (5), and a connection groove (613) adapted to the connection block (502) is provided on the surface of the end pipe (61).

7. The pressure gauge conversion joint according to claim 1, characterized in that: A connecting valve (7) is fixedly mounted on the surface of one of the end pipes (61), and an electric heating wire (8) is wound around the surface of the winding pipe (62).

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