Pressure gauge for controlling fluctuation of pressure indicating value

Abstract

The utility model discloses a pressure gauge for controlling fluctuation of pressure indicating value, which belongs to the technical field of pressure gauges, and comprises a gauge body, a dial plate arranged on the surface of the gauge body, a joint arranged at the bottom of the gauge body, a conveying seat connected with the joint, a measuring spring tube arranged on the conveying seat, a transmission mechanism connected with the measuring spring tube, and a pointer arranged on the transmission mechanism. The utility model can solve the problems that the conventional pressure gauge can only measure linear indicating values, and cannot measure the linear indicating values due to large fluctuation of the pressure indicating values in the use process of the pressure gauge or the pressure gauge is damaged. According to the pressure gauge provided by the utility model, the measured pressure indicating values are uniformly distributed between 1 bar and 20 bar before the indicating value of the dial plate is 20 bar, and the measured pressure indicating values are uniformly distributed between 20 bar and 60 bar after the indicating value of the dial plate is 20 bar, so that the problem that the pressure cannot be measured or the pressure gauge is damaged due to large fluctuation of the pressure indicating values in the use process of the pressure gauge can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauges, in particular to a pressure gauge for controlling the fluctuation of pressure indication. 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 widely used in almost all industrial processes and scientific research fields. It can be seen everywhere in thermal pipelines, oil and gas transmission, water and gas supply systems, vehicle repair and maintenance shops, etc.; especially in 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] Existing pressure gauges can only measure linear indications, that is, the pressure indications on the surface of the pressure gauge are evenly distributed. During the use of the pressure gauge, the pressure indications often fluctuate greatly and cannot be measured or the pressure gauge is damaged. Utility Model Content

[0004] The utility model aims to provide a pressure gauge for controlling the fluctuation of pressure indication, which can solve the problem in the prior art that the pressure indication fluctuation is large and thus the pressure gauge cannot be measured or is damaged.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pressure gauge for controlling the fluctuation of pressure indication, comprising a gauge body, a dial being arranged on the surface of the gauge body, a joint being arranged on the bottom of the gauge body, the joint being connected to a conveying seat, a measuring spring tube being arranged on the conveying seat, the measuring spring tube being connected to a transmission mechanism, a pointer being arranged on the transmission mechanism, a seal being arranged on the measuring spring tube, a pressure transmission rod being arranged on one side of the seal, and the pressure transmission rod being mounted on an external spring tube.

[0007] Preferably, the dial is provided with a dial indication, wherein before the dial indication reaches 20 bar, the measured pressure indication is evenly distributed between 1 bar and 20 bar, and after the dial indication reaches 20 bar, the measured pressure indication is evenly distributed between 20 bar and 60 bar.

[0008] Preferably, the dial angle of the dial set on the dial for indicating values ​​from 1 bar to 20 bar is 225°, and the dial angle of the dial set on the dial for indicating values ​​from 20 bar to 60 bar is 90°.

[0009] Preferably, the joint is communicated with the conveying seat, and a conveying channel is provided on the joint and the conveying seat.

[0010] Preferably, the conveying seat is connected to the measuring spring tube, and the measuring gas entering the joint enters the measuring spring tube through the conveying seat, causing the measuring spring tube to be displaced.

[0011] Preferably, the external spring tube is located outside the measuring spring tube, and the external spring tube is installed on the conveying seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The pressure gauge of the utility model measures pressure values ​​uniformly distributed between 1 bar and 20 bar before the dial indicates 20 bar, wherein the dial angle for dial indications of 1 bar to 20 bar is 225°; and after the dial indicates 20 bar, the measured pressure values ​​uniformly distributed between 20 bar and 60 bar, wherein the dial angle for dial indications of 20 bar to 60 bar is 90°. This can solve the problem of being unable to measure or causing damage to the pressure gauge due to large fluctuations in pressure indications during use of the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of a pressure gauge for controlling pressure indication fluctuation of the utility model;

[0015] Figure 2 It is a cross-sectional view of a pressure gauge for controlling pressure indication fluctuations of the utility model;

[0016] Figure 3 The utility model is a partial structural diagram of a pressure gauge for controlling pressure indication fluctuation.

[0017] In the figure: 1. conveying seat; 2. measuring spring tube; 3. external spring tube; 4. pressure transmission rod; 5. sealing; 6. transmission mechanism; 7. pointer; 8. joint; 9. dial; 10. meter body. DETAILED DESCRIPTION

[0018] 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.

[0019] In order to solve the technical problem that the existing pressure gauge can only measure linear indication, that is, the pressure indication on the surface of the pressure gauge is evenly distributed, and the pressure gauge cannot be measured or is damaged during use due to large fluctuations in the pressure indication, please refer to Figure 1-Figure 3 , this embodiment provides the following technical solutions:

[0020] A pressure gauge for controlling the fluctuation of pressure indication comprises a gauge body 10, and a dial 9 is arranged on the surface of the gauge body 10.

[0021] In this embodiment, a dial indication is provided on the dial 9, wherein before the dial indication reaches 20 bar, the measured pressure indication is evenly distributed between 1 bar and 20 bar, and after the dial indication reaches 20 bar, the measured pressure indication is evenly distributed between 20 bar and 60 bar.

[0022] In this embodiment, the dial angle of the dial 9 for indicating values ​​from 1 bar to 20 bar is 225°, and the dial angle of the dial 9 for indicating values ​​from 20 bar to 60 bar is 90°.

[0023] A joint 8 is provided at the bottom of the meter body 10 , and the joint 8 is connected to the conveying seat 1 , on which a measuring spring tube 2 is provided.

[0024] In this embodiment, the joint 8 is connected to the conveying seat 1 , and conveying channels are provided on the joint 8 and the conveying seat 1 .

[0025] In this embodiment, the conveying seat 1 is connected to the measuring spring tube 2, and the measuring gas entering the joint 8 enters the measuring spring tube 2 through the conveying seat 1, causing the measuring spring tube 2 to be displaced.

[0026] The measuring spring tube 2 is connected to a transmission mechanism 6 , on which a pointer 7 is provided.

[0027] It should be noted that the measuring gas enters the conveying seat 1 from the bottom of the joint 8. After being conveyed by the conveying seat 1, the measuring gas enters the measuring spring tube 2, causing the measuring spring tube 2 to be displaced, and then the displacement is amplified by the transmission mechanism 6. Finally, the accurate pressure of the gas to be measured is indicated on the dial 9 through the pointer 7.

[0028] The measuring spring tube 2 is provided with a seal 5 , and a pressure transmission rod 4 is provided on one side of the seal 5 . The pressure transmission rod 4 is installed on the external spring tube 3 .

[0029] It should be noted that, when the pressure indication is between 0-20 bar, the pressure gauge uses a measuring spring tube 2 to measure the pressure. When the pressure exceeds 20 bar, the measuring spring tube 2 increases the pressure and produces displacement, driving the seal 5 to move. The seal 5 contacts the pressure transmission rod 4, and then drives the external spring tube 3 to deform together, thereby achieving the purpose of indicating high pressure.

[0030] In this embodiment, the external spring tube 3 is located outside the measuring spring tube 2 , and the external spring tube 3 is installed on the conveying seat 1 .

[0031] Working principle: The measuring gas enters the conveying seat 1 from the bottom of the joint 8. After being conveyed by the conveying seat 1, the measuring gas enters the measuring spring tube 2, causing the measuring spring tube 2 to be displaced. The displacement is then amplified by the transmission mechanism 6. Finally, the accurate pressure of the gas to be measured is indicated on the dial 9 through the pointer 7.

[0032] Among them, when the pressure indication is between 0-20bar, the pressure gauge uses a measuring spring tube 2 to measure the pressure. When the pressure exceeds 20bar, the measuring spring tube 2 increases the pressure to produce displacement, driving the seal 5 to move. The seal 5 contacts the pressure transmission rod 4, and then drives the external spring tube 3 to deform together, thereby achieving the effect of indicating high pressure.

[0033] Before the dial indicates 20 bar, the measured pressure indication is evenly distributed between 1 bar and 20 bar, wherein the dial angle for the dial indications from 1 bar to 20 bar is 225°; after the dial indicates 20 bar, the measured pressure indication is evenly distributed between 20 bar and 60 bar, wherein the dial angle for the dial indications from 20 bar to 60 bar is 90°, which can solve the problem of being unable to measure or causing damage to the pressure gauge due to large fluctuations in pressure indications during use.

[0034] 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.

[0035] 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 for controlling pressure indication fluctuations, comprising a gauge body (10), characterized in that: The surface of the meter body (10) is provided with a dial (9), the bottom of the meter body (10) is provided with a joint (8), the joint (8) is connected to a conveying seat (1), a measuring spring tube (2) is provided on the conveying seat (1), the measuring spring tube (2) is connected to a transmission mechanism (6), a pointer (7) is provided on the transmission mechanism (6), a seal (5) is provided on the measuring spring tube (2), a pressure transmission rod (4) is provided on one side of the seal (5), and the pressure transmission rod (4) is installed on the external spring tube (3).

2. A pressure gauge for controlling pressure indication fluctuation according to claim 1, characterized in that: The dial (9) is provided with a dial indication, wherein before the dial indication reaches 20 bar, the measured pressure indication is evenly distributed between 1 bar and 20 bar, and after the dial indication reaches 20 bar, the measured pressure indication is evenly distributed between 20 bar and 60 bar.

3. A pressure gauge for controlling pressure indication fluctuation according to claim 2, characterized in that: The dial angle of the dial (9) for indicating values ​​from 1 bar to 20 bar is 225°, and the dial angle of the dial (9) for indicating values ​​from 20 bar to 60 bar is 90°.

4. A pressure gauge for controlling pressure indication fluctuation according to claim 1, characterized in that: The joint (8) is connected to the conveying seat (1), and both the joint (8) and the conveying seat (1) are provided with a conveying channel.

5. A pressure gauge for controlling pressure indication fluctuation according to claim 1, characterized in that: The conveying seat (1) is connected to the measuring spring tube (2), and the measuring gas entering the joint (8) enters the interior of the measuring spring tube (2) through the conveying seat (1), causing the measuring spring tube (2) to move.

6. A pressure gauge for controlling pressure indication fluctuation according to claim 1, characterized in that: The external spring tube (3) is located outside the measuring spring tube (2), and the external spring tube (3) is installed on the conveying seat (1).

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