Auxiliary propelling device for inflator type multi-gas detector

Abstract

The utility model relates to the technical field of application of gas detectors, in particular to an auxiliary propelling device for an inflator type multi-gas detector, and aims to solve the problem that in the using process of the inflator type multi-gas detector at present, when the resistance of an identification tube is too high in the using process of the inflator type multi-gas detector, the resistance of the identification tube is too high. An operator needs to use large force for pushing, and therefore the problem that the pushing amount and the pushing time are not well controlled due to the fact that force application is not uniform easily occurs. According to the device, an air cylinder of a detector is integrally clamped in a fixing sleeve, then a propelling screw rod is connected with a detector push rod, and through supporting and fixing of a screw rod sleeve, when an operator carries out gas detection, a rotating handle is directly rotated to drive the propelling screw rod to rotate, and the detector push rod and the air cylinder are integrally propelled; therefore, rapid and accurate gas detection is realized, the pushing efficiency and convenience of the gas detector and the uniform stability of the pushing force are effectively improved, and the overall precision of gas detection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detector applications, in particular to an auxiliary propulsion device for a gas cylinder type multi-gas detector. Background Art

[0002] Cylinder-type multi-gas detectors draw air through the sampling inlet by pushing and pulling a tightly sealed piston. The amount of gas drawn is determined by observing the scale on the piston rod. The ends of the calibration tube are cut, and the lower end is connected to the sampler's outlet with a short rubber hose. The three-way valve is controlled to allow air to flow through the tube at a constant speed over a specified time. The percentage concentration of the gas being measured is then directly read from the number indicated on the upper end of the indicator rubber on the tube. These detectors are widely used in underground coal mines, metallurgy, chemical industry, coking, gas stations, tunneling, environmental protection, and health and epidemic prevention departments. Existing cylinder-type multi-gas detectors typically require operators to exert considerable force when the resistance of the calibration tube is too high. This type of operation is prone to problems with the amount and duration of push due to uneven force application, which significantly impacts the overall efficiency and accuracy of gas detection. Utility Model Content

[0003] The utility model provides a cylinder-type multi-gas detector auxiliary propulsion device to solve the problems existing in the above background.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The invention discloses an auxiliary propulsion device for a gas cylinder type multi-gas detector, comprising a plurality of detector fixing sleeves, one side of which is fixedly connected to an intermediate slot body, the intermediate slot body is fixedly connected to a screw sleeve, and a propulsion screw is rotatably arranged in the screw sleeve.

[0006] Furthermore, the detector fixing sleeve is connected to the middle tank body through a connecting end.

[0007] Furthermore, one end of the advancing screw is fixedly connected to a push rod fixing bayonet, the push rod fixing bayonet is movably arranged in the middle groove body, and a handle is also provided on the side of the push rod fixing bayonet.

[0008] Furthermore, the other end of the advancing screw is also connected to a rotating handle.

[0009] The utility model has the following beneficial effects:

[0010] The utility model provides an auxiliary propulsion device for a gas cylinder type multi-gas detector, which clamps the gas cylinder of the detector in a fixed sleeve as a whole, connects the propulsion screw and the detector push rod, and fixes them through the support of the screw sleeve. When performing gas detection, the operator can directly turn the rotary handle to drive the propulsion screw to rotate, and propel the detector push rod and the gas cylinder as a whole, thereby realizing fast and accurate gas detection, effectively improving the efficiency and convenience of pushing the gas detector and the uniformity and stability of the propulsion force, thereby ensuring the overall accuracy of gas detection, and solving the problem that during the use of the gas cylinder type multi-gas detector, the operator needs to use greater force to push the gas cylinder when the resistance of the identification tube is too high, which easily leads to uneven force application and poor control of the pushing amount and pushing time.

[0011] The detector fixing sleeve of the utility model is a hollow semi-cylinder with a smooth inner surface, which is convenient for taking and placing the detector without damaging the surface of the detector. The detector fixing sleeve is connected to the propulsion device body as a whole, and an angle suitable for taking and placing the detector can be obtained, which is more convenient to use. The axis of the fixing sleeve overlaps with the central axis of the screw sleeve of the propulsion device body, ensuring the stability of the pushed gas and the uniformity of the force; the propulsion device body, the middle groove body and the fixing sleeve connecting ends and the screw sleeves at both ends are integrated, the middle groove body is a semi-cylindrical groove with the same size as the hollow cylinder of the screw sleeve, the inner surface of the groove is smooth, and the same This reduces friction and resistance, facilitates gas delivery, and allows clear viewing of the scale on the detector push rod. The integrated design is also beneficial to stability and grip during use, with a simpler structure and greater durability. The push rod fixing bayonet is used to fix one end face of the detector push rod handle. It is a concave bowl-shaped device, and the bowl wall can be used as a limiter on the push rod end, allowing the detector handle and auxiliary device to be installed more tightly without relative movement, ensuring stability. This also facilitates installation and removal, with more uniform force and more stable advancement. The rotating handle is a T-shaped handle, which is suitable for hand grip and rotation when pushing gas, and is not easy to slip. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the application effect of the overall structure of the utility model.

[0014] The meanings of the reference numerals are as follows:

[0015] 1. Detector fixing sleeve; 2. Connecting end; 3. Middle trough; 4. Push rod fixing bayonet; 5. Push screw; 6. Screw sleeve; 7. Rotating handle; 8. Handle; 9. Piston rod; 10. Detector gas cylinder; 11. Three-way switch; 12. Air outlet; 13. Air inlet; 14. Fixing nut. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1-2 As shown, a cylinder-type multi-gas detector auxiliary propulsion device includes multiple detector fixing sleeves 1, one side of the detector fixing sleeve 1 is fixedly connected to an intermediate tank body 3, the intermediate tank body 3 is fixedly connected to a screw sleeve 6, and a propulsion screw 5 is rotatably provided in the screw sleeve 6.

[0018] The detector fixing sleeve 1 is connected to the middle tank body 3 via the connecting end 2 .

[0019] One end of the advancing screw rod 5 is fixedly connected to a push rod fixing bayonet 4 . The push rod fixing bayonet 4 is movably arranged in the middle groove body 3 , and a handle 8 is further provided on the side of the push rod fixing bayonet 4 .

[0020] The other end of the advancing screw 5 is also connected to a rotating handle 7 .

[0021] When the present invention is used in practice, the detector is placed into the detector fixing sleeve 1 and is set on the auxiliary propulsion device. When the detector is pushed, the operator holds the detector fixing sleeve 1 to ensure stability during the pushing process; the propulsion screw 5 is assembled through the screw sleeve 6, and the surface thread of the propulsion screw 5 cooperates with the thread on the inner surface of the screw sleeve 6. Auxiliary propulsion devices with different control ratios and fineness can be adjusted by selecting different thread densities. A detector push rod fixing bayonet 4 is provided at one end of the propulsion screw 5 in the main body of the propulsion device. The propulsion screw 5 is rotated to adjust the propulsion device, and the end of the piston rod 9 of the prepared detector is fixed to the push rod fixing bayonet 4. The propulsion screw 5 is adjusted again to fix the auxiliary propulsion device and the detector tightly, and the preparation work can be completed. The other end of the propulsion screw 5 is provided with a rotating handle 7, which is also convenient for the user to push the work; the detector fixing sleeve 1 is a hollow semi-cylinder with a smooth inner surface, which is convenient for taking and placing the detector gas cylinder 10 without damaging the surface of the detector. The connection between the detector fixing sleeve 1 and the propulsion device body can ensure that an angle suitable for taking and placing the detector is obtained, which is more convenient to use, and the central axis of the detector fixing sleeve 1 overlaps with the central axis of the screw sleeve 6 of the propulsion device body, ensuring the stability of the pushed gas and uniform force; the middle tank body 3 of the propulsion device body and the fixed sleeve connecting ends and the screw sleeve 6 at both ends are integrated, and the middle tank body 3 is the same size as the hollow cylinder of the screw sleeve 6 The same semi-cylindrical groove has a smooth inner surface, which also reduces friction and resistance and facilitates the pushing of gas; the integrated design is also conducive to stability and grip during use, with a simpler structure and strong durability; the detector push rod fixing socket 4 is used to fix the end face of the piston rod 9 of the detector, which is a concave bowl shape, and the bowl wall can be used as a limit for the end of the detector push rod, so that the piston rod 9 of the detector and the auxiliary device are installed more tightly without relative movement, ensuring stability, while also facilitating installation and removal, and a hemispherical raised handle 8 is provided in the middle of the bottom of the bowl, and the height of the raised handle 8 is lower than the height of the bowl edge. Such a setting is more in line with the internal structure of the end of a general detector push rod. During specific use, at the desired measurement location, twist the three-way switch 11 of the carbon monoxide detector parallel to the detector cylinder 10, push and pull the piston rod 9 back and forth three or four times, pull the piston rod 9 back and forth, and take a gas sample. Then twist the three-way switch 11 to a 45-degree position, open the seals at both ends of the longer test tube, insert the end with the "O" into the hose at the vertical gas outlet 12 of the detector, and then twist the three-way switch 11 to the vertical position. Push it at a constant speed over 100 seconds. Then observe the position of the color-changing ring and read the carbon monoxide content according to the number on the test tube. When checking for concentrated and trace carbon monoxide, use a test tube with the corresponding measurement range and check according to the above method. If a test tube with the corresponding measurement range is not available, first dilute the high concentration of carbon monoxide and then check. Multiply the result by the dilution multiple to obtain the true content. Alternatively, repeat the gas flow several times for trace carbon monoxide and divide the result by the number of gas flows to obtain the true content.During the entire pushing operation of the cylinder-type multi-gas detector, the auxiliary device effectively improves the efficiency and convenience of pushing the gas detector and the uniformity and stability of the pushing force, thereby ensuring the overall accuracy of gas detection. Therefore, the device has good practicality.

Claims

1. A cylinder-type multi-gas detector auxiliary propulsion device, characterized by: The invention comprises a plurality of detector fixing sleeves (1), wherein one side of the detector fixing sleeve (1) is fixedly connected to an intermediate tank body (3), the intermediate tank body (3) is fixedly connected to a screw sleeve (6), and a propulsion screw (5) is rotatably provided in the screw sleeve (6).

2. The cylinder-type multi-gas detector auxiliary propulsion device according to claim 1, characterized in that: The detector fixing sleeve (1) is connected to the middle tank body (3) via a connecting end (2).

3. The auxiliary propulsion device for a cylinder-type multi-gas detector according to claim 1, characterized in that: One end of the propulsion screw (5) is fixedly connected to a push rod fixing bayonet (4), the push rod fixing bayonet (4) is movably arranged in the middle trough (3), and a handle (8) is also provided on the side of the push rod fixing bayonet (4).

4. The cylinder-type multi-gas detector auxiliary propulsion device according to claim 3, characterized in that: The other end of the advancing screw (5) is also connected to a rotating handle (7).

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