Oxygen pressure gauge cleaning device

Abstract

The utility model relates to the field of measuring instruments, and particularly discloses an oxygen pressure gauge cleaning device. The connecting thread is arranged on the inner wall of the fixed joint; the extension pipe is arranged at the upper end of the fixed joint and is fixedly and integrally connected with the fixed joint through the fixed bracket; the check valve is arranged on the extension pipe; the needle tube connecting part is arranged at the upper end of the extension tube; the cleaning device solves the problems that a syringe needle at the front end of an injector and a pressure gauge of an existing cleaning device cannot be effectively fixed, the syringe needle and the pressure gauge shake in the cleaning operation process, the cleaning effect is not stable, an operator makes close contact with a cleaning agent in the operation process, the operator is likely to be contaminated, and safety is poor. Effective fixing of the cleaning pipe and the pressure gauge is achieved, the cleaning effect is stable, and safety is good.

Description

Technical Field

[0001] This utility model relates to the field of measuring instruments, and directly relates to an oxygen pressure gauge cleaning device. Background Technology

[0002] Oxygen pressure gauges require cleaning before calibration to ensure they are free of grease and prevent fires. Current cleaning devices primarily use syringes, injecting cleaning agents like carbon tetrachloride into the bottom of the inlet pipe. These agents pose health risks. Furthermore, operators must hold both the gauge and syringe with both hands, resulting in inconsistent cleaning performance due to the needle not being properly secured to the gauge. This also increases the risk of operator contamination with the cleaning agent, compromising safety. Therefore, a cleaning device that effectively secures the cleaning tube to the gauge, provides stable cleaning results, and ensures safety is essential. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an oxygen pressure gauge cleaning device. This device solves the problems of existing cleaning devices where the syringe tip and pressure gauge cannot be effectively fixed, resulting in shaking during the cleaning process, unstable cleaning effect, and poor safety due to close contact with the cleaning agent. The new device effectively fixes the cleaning tube and pressure gauge, ensuring stable cleaning effect and good safety.

[0004] The technical solution adopted in this utility model is as follows:

[0005] An oxygen pressure gauge cleaning device, comprising:

[0006] The fixed connector is a hollow cylinder;

[0007] The connecting thread is provided on the inner wall of the fixed joint and is fixedly connected to the fixed joint as a whole.

[0008] An extension tube is installed at the upper end of the fixed connector and is integrally connected to the fixed connector via a fixed bracket;

[0009] A check valve, which is installed on the extension pipe and fixedly connected to the extension pipe, is used to prevent the cleaning agent from flowing back;

[0010] The needle tube connector is cylindrical and is located at the upper end of the extension tube, and is fixedly connected to the extension tube.

[0011] The cleaning tube is located at the lower end of the fixed connector and is connected to the extension tube.

[0012] Preferably, the oxygen pressure gauge cleaning device further includes:

[0013] The sealing gasket is ring-shaped and is located on the inner wall of the needle tube connection part, and is fixedly connected to the needle tube connection part.

[0014] Preferably, the sealing gasket is made of nitrile rubber.

[0015] Preferably, the oxygen pressure gauge cleaning device further includes:

[0016] The spray nozzle is a round hole located at the front end of the cleaning pipe and is fixedly connected to the cleaning pipe.

[0017] Preferably, the cleaning tube is made of a soft plastic material.

[0018] Preferably, the check valve is made of acrylonitrile.

[0019] This utility model has the following beneficial effects:

[0020] This utility model provides an oxygen pressure gauge cleaning device that solves the problems of existing cleaning devices where the syringe needle and pressure gauge cannot be effectively fixed, resulting in shaking during cleaning, unstable cleaning effect, and poor safety due to close contact with cleaning agent. The new device achieves effective fixing of the cleaning tube and pressure gauge, resulting in stable cleaning effect and good safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the oxygen pressure gauge cleaning device of this utility model.

[0022] Figure 2 This is a schematic diagram of the needle tube connection part of the present invention.

[0023] Figure 3 This is a schematic diagram of the check valve structure described in this utility model.

[0024] Figure 4 This is a schematic diagram of the cleaning pipe structure described in this utility model.

[0025] Figure 5 This is a schematic diagram of the fixed support structure described in this utility model.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Fixed connector; 2. Connecting thread; 3. Extension tube; 4. Check valve; 5. Needle tube connection; 6. Cleaning tube; 7. Sealing gasket; 8. Spray nozzle; 9. Fixed bracket. Detailed Implementation

[0028] The following is combined Figures 1 to 5 The technical solution of this utility model will be further described in detail below.

[0029] This invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. In the accompanying drawings, the dimensions and relative dimensions of structures and regions are exaggerated for clarity.

[0030] like Figures 1 to 5 As shown, the oxygen pressure gauge cleaning device provided by this utility model includes a hollow cylindrical fixed joint 1; a connecting thread 2 is provided on the inner wall of the fixed joint 1 and is fixedly connected to the fixed joint 1; an extension tube 3 is provided on the upper end of the fixed joint 1 and is fixedly connected to the fixed joint 1 through a fixed bracket 9; a check valve 4 is provided on the extension tube 3 and is fixedly connected to the extension tube 3 to prevent the cleaning agent from flowing back; a cylindrical needle tube connecting part 5 is provided on the upper end of the extension tube 3 and is fixedly connected to the extension tube 3; and a cleaning tube 6 is provided on the lower end of the fixed joint 1 and is connected to the extension tube 3.

[0031] In use, the cleaning tube 6 is first inserted into the inlet pipe of the oxygen pressure gauge to be cleaned. Then, the fixing connector 1 is screwed to the bottom section of the oxygen pressure gauge through the connecting thread 2 on its inner wall. The cleaning tube 6 is firmly connected to the oxygen pressure gauge through the fixing connector 1, preventing shaking during the cleaning operation and ensuring stable cleaning results. The needle connection part 5 is connected to the front end of the syringe. The cleaning agent enters the needle connection part 5 through the syringe, then passes through the extension tube 3 and the check valve 4, and finally enters the interior of the oxygen pressure gauge through the cleaning tube 6 to clean it. The check valve 4 effectively prevents the cleaning agent from flowing back. Because of the extension tube 3, operators can maintain a safe distance from the cleaning site during operation, avoiding contamination by the cleaning agent, thus ensuring good safety. This utility model solves the problems of existing syringes where the needle tip cannot be effectively fixed to the oxygen pressure gauge under test, resulting in shaking during cleaning, unstable cleaning effect, and easy contamination of operators due to close contact with the cleaning agent, thus posing a safety hazard. It achieves effective fixing of the cleaning tube 6 to the oxygen pressure gauge under test, ensuring stable cleaning effect and good safety.

[0032] The oxygen pressure gauge cleaning device also includes an annular sealing gasket 7, which is located on the inner wall of the needle tube connection 5 and is integrally connected to the needle tube connection 5. The sealing gasket 7 ensures a tighter connection between the external syringe and other cleaning devices and the needle tube connection 5, resulting in a better seal. Made of nitrile rubber, the sealing gasket 7 effectively prevents corrosion from solvents such as carbon tetrachloride, making it more durable and providing a better seal. The oxygen pressure gauge cleaning device also includes a nozzle 8, a round hole located at the front end of the cleaning tube 6 and integrally connected to it. The nozzle 8 at the front end increases the pressure of the cleaning agent, resulting in a more powerful spray and better cleaning effect. The cleaning tube 6 is made of soft plastic, conforming to the internal pipe wall of the pressure gauge and extending into it. The check valve 4 is made of acrylonitrile, which has high strength, good toughness, and strong resistance to corrosion from acids, alkalis, and salts.

[0033] The present invention provides an oxygen pressure gauge cleaning device that overcomes the problems of existing cleaning devices where the syringe tip and pressure gauge cannot be effectively fixed, resulting in shaking during the cleaning process, unstable cleaning effect, and poor safety due to the operator being easily contaminated by the cleaning agent during close contact. The present invention achieves effective fixing of the cleaning tube 6 to the pressure gauge, resulting in stable cleaning effect and good safety.

Claims

1. An oxygen pressure gauge cleaning device, characterized in that, include: The fixed connector is a hollow cylinder; A connecting thread is provided on the inner wall of the fixed joint and is integrally fixed to the fixed joint. An extension tube is disposed at the upper end of the fixed joint and is integrally connected to the fixed joint via a fixed bracket; A check valve is installed on the extension pipe and is fixedly connected to the extension pipe to prevent the cleaning agent from flowing back; The needle tube connector is cylindrical and is located at the upper end of the extension tube, and is fixedly connected to the extension tube. A cleaning tube is disposed at the lower end of the fixed joint and is connected to the extension tube.

2. The oxygen pressure gauge cleaning device according to claim 1, characterized in that, Also includes: The sealing gasket is annular and is disposed on the inner wall of the needle tube connection part, and is fixedly connected to the needle tube connection part.

3. The oxygen pressure gauge cleaning device according to claim 2, characterized in that, The sealing gasket is made of nitrile rubber.

4. The oxygen pressure gauge cleaning device according to claim 3, characterized in that, Also includes: The spray nozzle is a round hole and is located at the front end of the cleaning pipe, and is fixedly connected to the cleaning pipe.

5. The oxygen pressure gauge cleaning device according to claim 4, characterized in that, The cleaning tube is made of soft plastic.

6. The oxygen pressure gauge cleaning device according to claim 5, characterized in that, The check valve is made of acrylonitrile.

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