Pressure gauge calibration table capable of identifying air leakage

Abstract

The utility model discloses a pressure gauge calibration table capable of identifying air leakage, which belongs to the technical field of pressure gauge calibration and comprises a calibration platform. Supporting feet are fixed to the bottom of the verification platform. A gas transmission pipeline assembly extending to the upper surface of the verification platform is mounted in the verification platform, and the gas transmission pipeline assembly is sequentially connected with the pressure gauges through adapters; the pressure gauges are divided into standard pressure gauges and pressure gauges to be measured, only one standard pressure gauge is arranged, and the rest pressure gauges are the pressure gauges to be measured; an elastic thin sleeve sleeves the outer side of the adapter, the elastic thin sleeve completely wraps the adapter and extends up and down to the root of the pressure gauge and the head of the gas transmission pipeline assembly respectively, and the elastic thin sleeve expands when gas leakage occurs at the adapter. According to the pressure gauge checking table capable of identifying air leakage, the elastic thin sleeve is additionally arranged at the position of the adapter, whether air leakage exists in the adapter or not is further judged by identifying whether the elastic thin sleeve expands or not, and the pressure gauge detection accuracy of the checking table is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge calibration technology, specifically a pressure gauge calibration stand that can identify air leaks. Background Technology

[0002] Pressure gauges are primarily used to monitor and control pressure changes in various production processes, playing a crucial role in ensuring the safety and quality of industrial production. Over time and under changing operating conditions, pressure gauges may drift or lose accuracy, affecting accurate pressure readings and thus threatening production safety and product quality. To ensure the accuracy of pressure measurements, pressure gauge calibration benches are used to periodically calibrate them, ensuring their accuracy and stability, thereby guaranteeing the normal operation of industrial production. During testing, a pressure gauge calibration bench installs one standard pressure gauge and multiple pressure gauges to be tested. By comparing the readings of the standard pressure gauge and the pressure gauges under test, it is determined whether the pressure gauges under test meet the standards.

[0003] Since there are many types of pressure gauges, they usually need to be connected to the pressure gauge calibration bench via adapters. This requires frequent disassembly and assembly of the adapters. After long-term and frequent disassembly and assembly, the adapters may wear down and leak air after connection. Since air leaks at the adapters cannot be detected manually, this will affect the accuracy of the pressure gauge calibration bench test. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a pressure gauge calibration bench that can identify air leaks. This pressure gauge calibration bench can identify air leaks by adding an elastic thin sleeve at the location of the adapter and further judging whether there is an air leak at the adapter by identifying whether the elastic thin sleeve expands, which greatly improves the accuracy of the calibration bench in detecting pressure gauges.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A pressure gauge calibration stand capable of identifying leaks includes a calibration platform; the bottom of the calibration platform is fixed with support legs.

[0007] The calibration platform is equipped with an internal gas supply pipeline assembly that extends to the upper surface of the calibration platform. This gas supply pipeline assembly is connected to pressure gauges in sequence via adapters.

[0008] An elastic sleeve is fitted on the outside of the adapter. This elastic sleeve completely covers the adapter and extends both vertically to the base of the pressure gauge and the head of the gas pipeline assembly. When there is a leak at the adapter, the elastic sleeve will expand.

[0009] By adopting the above solution, the pressure gauge calibration bench that can identify air leaks greatly improves the accuracy of pressure gauge testing by adding an elastic thin sleeve at the adapter location and further determining whether there is an air leak by identifying whether the elastic thin sleeve expands.

[0010] In a preferred embodiment of a pressure gauge calibration bench that can identify leaks, the elastic sleeve is specifically an elastic rubber sleeve, which is similar to a balloon material.

[0011] To facilitate identification of whether the elastic sheath has expanded, the above solution involves wrapping the area with an elastic sheath similar to a balloon, which makes the expansion more noticeable during application.

[0012] As a preferred embodiment of a pressure gauge calibration bench that can identify leaks, the pressure gauges are divided into standard pressure gauges and pressure gauges to be tested. There is only one standard pressure gauge, and the rest are pressure gauges to be tested.

[0013] Using the above scheme, in order to calibrate the pressure gauges, the pressure gauge calibration bench will install one standard pressure gauge and multiple pressure gauges to be tested during the test. By comparing the readings of the standard pressure gauge and the pressure gauges to be tested, it can be determined whether the pressure gauges to be tested meet the standard.

[0014] In a preferred embodiment of a pressure gauge calibration bench capable of identifying leaks, a base plate is detachably mounted on the lower surface of the calibration platform, and the gas pipeline assembly is located above the base plate.

[0015] In order to facilitate the disassembly or installation of the gas pipeline components, the lower surface of the calibration platform is sealed with a detachable base plate, which facilitates the disassembly and maintenance of the gas pipeline components in the future.

[0016] As a preferred embodiment of a pressure gauge calibration bench capable of identifying leaks, the gas pipeline assembly includes a switching valve located at the center, a docking port 1 provided on the side of the switching valve, and an injection pipe sealed to the docking port 1, the injection pipe being connected to an air pump.

[0017] The side of the switching valve is also provided with multiple circumferentially arrayed docking nozzles, each of which is sealed with an air supply pipe, which is connected to the switching head.

[0018] To ensure the uniformity of gas delivery, the switching valve is placed in the center of the calibration platform to deliver gas evenly to the gas delivery pipe.

[0019] After adopting the above technical solution, the beneficial effects of this utility model are:

[0020] 1. This pressure gauge calibration bench that can detect air leaks greatly improves the accuracy of pressure gauge testing by installing an elastic thin sleeve at the adapter location and further determining whether there is an air leak by identifying whether the elastic thin sleeve expands.

[0021] 2. To make it easier to identify whether the elastic sleeve has expanded, a balloon-like elastic sleeve is used for wrapping, which makes it more noticeable during application;

[0022] 3. In order to calibrate the pressure gauges, the pressure gauge calibration bench will install a standard pressure gauge and multiple pressure gauges to be tested during the test. By comparing the readings of the standard pressure gauge and the pressure gauges to be tested, it can be determined whether the pressure gauges to be tested meet the standards.

[0023] 4. To facilitate the disassembly or installation of gas pipeline components, a removable base plate is used to seal the lower surface of the calibration platform, which facilitates the disassembly and maintenance of gas pipeline components in the future.

[0024] 5. To ensure the uniformity of gas delivery as much as possible, the switching valve is placed in the center of the calibration platform to deliver gas evenly to the gas delivery pipe. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 The three-dimensional structure of this utility model Figure 1 ;

[0027] Figure 2 The three-dimensional structure of this utility model Figure 2 ;

[0028] Figure 3 hide Figure 1 Three-dimensional structural diagram of the thin-walled medium-elastic sleeve;

[0029] Figure 4 To showcase Figure 1 A three-dimensional structural diagram of the internal structure of the medium-elastic thin sleeve;

[0030] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0031] Figure 6 hide Figure 2 3D structural diagram of the back of the midsole plate;

[0032] Figure 7 for Figure 6 3D structural diagram of the gas transmission pipeline assembly;

[0033] Figure 8 To showcase Figure 7 A three-dimensional diagram of the internal structure.

[0034] Markings in the diagram: 1-calibration platform; 2-support leg; 3-adapter; 4-pressure gauge; 41-standard pressure gauge; 42-pressure gauge to be tested; 5-elastic thin sleeve; 6-base plate; 7-converter valve; 8-connecting nozzle one; 9-air injection pipe; 10-connecting nozzle two; 11-air supply pipe. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1 to 5 As shown, a pressure gauge calibration bench capable of detecting leaks includes a calibration platform 1; a support leg 2 is welded and fixed to the bottom of the calibration platform 1; an air supply pipeline assembly extending to the upper surface of the calibration platform 1 is installed inside the calibration platform 1, and the air supply pipeline assembly is connected to a pressure gauge 4 in sequence via an adapter 3, wherein both ends of the adapter 3 are threaded; an elastic thin sleeve 5 is fitted on the outside of the adapter 3, the elastic thin sleeve 5 completely wraps around the adapter 3 and extends vertically to the root of the pressure gauge 4 and the head of the air supply pipeline assembly, respectively. When a leak occurs at the adapter 3, the elastic thin sleeve 5 will expand accordingly. This pressure gauge calibration bench capable of detecting leaks greatly improves the accuracy of the calibration bench in detecting pressure gauges 4 by adding an elastic thin sleeve 5 at the adapter 3 and further determining whether there is a leak by detecting whether the elastic thin sleeve 5 expands.

[0037] The elastic sheath 5 is specifically an elastic rubber sleeve, similar in material to a balloon. To facilitate identification of whether the elastic sheath 5 is inflated, it is wrapped in a balloon-like elastic sheath, making the inflation more noticeable during application.

[0038] like Figure 1 As shown, pressure gauge 4 consists of a standard pressure gauge 41 and pressure gauges to be tested 42. Only one standard pressure gauge 41 is installed, while the rest are pressure gauges to be tested 42. To calibrate pressure gauge 4, the calibration bench will install one standard pressure gauge 41 and multiple pressure gauges to be tested 42 during testing. By comparing the readings of the standard pressure gauge 41 and the pressure gauges to be tested 42, it can be determined whether the pressure gauges to be tested 42 meet the standard.

[0039] like Figure 2 , Figure 6 As shown, a base plate 6 is detachably mounted on the lower surface of the calibration platform 1 using screws, and the gas pipeline assembly is located above the base plate 6. To facilitate the disassembly or installation of the gas pipeline assembly, a detachable base plate 6 is used to seal the lower surface of the calibration platform 1, making it easier to disassemble and maintain the gas pipeline assembly later.

[0040] like Figures 7 to 8 As shown, the gas supply pipeline assembly includes a centrally located switching valve 7. A connecting nozzle 8 is located on the side of the switching valve 7, and an injection pipe 9 is connected to the connecting nozzle 8 via a threaded seal. The injection pipe 9 is connected to an air pump. The switching valve 7 also has multiple circumferentially arrayed connecting nozzles 10 on its side, each connected to a gas supply pipe 11 via a threaded seal. The gas supply pipe 11 is connected to a switching head. To ensure uniform gas supply as much as possible, the switching valve 7 is located at the center inside the calibration platform 1, ensuring that the gas is evenly delivered to the gas supply pipe 11.

[0041] The working principle of this utility model:

[0042] Before testing, first install the elastic thin sleeve 5 on the head of the gas pipeline assembly, connect the standard pressure gauge 41 to the gas pipeline 11 of the gas pipeline assembly through the adapter 3, then connect the pressure gauge 42 to be tested to the gas pipeline 11 of the gas pipeline assembly through the adapter 3, and then roll up the elastic thin sleeve 5 in sequence so that the elastic thin sleeve 5 completely covers the adapter 3.

[0043] During testing, the pneumatic pump delivers gas evenly to the gas supply pipe 11 via the switching valve 7. If the elastic thin sleeve 5 does not expand or deform, it indicates that there is no air leakage at the location of the adapter 3. Then, by comparing the readings of each standard pressure gauge 41 with the pressure gauge 42 under test, it is determined whether the pressure gauge 42 under test meets the standard. If there is air leakage at the location of the adapter 3, the elastic thin sleeve 5 will expand as a result, indicating that the adapter 3 has poor sealing performance and the adapter should be replaced before recalibration.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pressure gauge leak-detectable calibration platform, comprising a calibration platform (1); a supporting leg (2) is fixed to the bottom of the calibration platform (1); A gas delivery pipeline assembly is installed inside the calibration platform (1) and extends to the upper surface of the calibration platform (1), which is connected with a pressure gauge (4) in sequence through an adapter (3); characterized in that An elastic sleeve (5) is sleeved outside the adapter (3), which completely wraps the adapter (3) and extends to the root of the pressure gauge (4) and the head of the gas delivery pipeline assembly, respectively, and expands when the adapter (3) leaks.

2. The gage check stand of claim 1, wherein: The elastic sleeve (5) is specifically an elastic rubber sleeve.

3. The gage check stand of claim 2, wherein: The pressure gauge (4) is divided into a standard pressure gauge (41) and a pressure gauge to be measured (42), wherein only one standard pressure gauge (41) is provided, and the remaining are pressure gauges to be measured (42).

4. The gage check stand of claim 3, wherein: A bottom plate (6) is detachably installed on the lower surface of the calibration platform (1), and the gas delivery pipeline assembly is located above the bottom plate (6).

5. The gage check stand of any of claims 1-4, wherein: The gas delivery pipeline assembly comprises a conversion valve (7) located at the center, a side surface of the conversion valve (7) is provided with a butt joint nozzle I (8), a gas injection pipe (9) is sealingly connected to the butt joint nozzle I (8), and the gas injection pipe (9) is connected with a gas pump.

6. The gage check stand of claim 5, wherein: A plurality of butt joint nozzles II (10) are circumferentially arranged on the side surface of the conversion valve (7), a gas delivery pipe (11) is sealingly connected to the butt joint nozzles II (10), and the gas delivery pipe (11) is connected with the adapter (3).

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