Gas collecting device

Abstract

The utility model discloses a gas collection device, and relates to the technical field of gas collection. The device comprises a collection box, one end of the collection box is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly connected with a collection port, the bottom of the collection box is fixedly connected with a handle, one end of the collection box is provided with a collection assembly, the bottom of the collection box is provided with a gas collection box, and the collection box is internally provided with a filter assembly. According to the device, the filtering assembly is arranged, a filtering plate is plugged into the fixing column, then the fixing column is covered with a cover, the sealing performance between the cover and the fixing column can be effectively improved through a sealing block and a sealing ring, the possibility of gas leakage is reduced, and after gas enters the collecting box, the sucked gas can be effectively filtered through the filtering plate, so that the gas collecting efficiency is improved. Therefore, the purity of the gas is improved, data are more accurate when the gas is analyzed in the later period, meanwhile, dust entering equipment can be reduced, the equipment is better protected, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of gas collection, and in particular to a gas collection device. Background Art

[0002] The hidden wells and pipelines on the road are hidden underground and airtight, which easily produces flammable and explosive gases. Without supervision, it is easy to cause explosion risks. Therefore, it is necessary to use gas collection devices to collect and detect the gas in the hidden wells and pipelines.

[0003] A gas collection device described in an existing Chinese patent application (authorization publication number: CN218035900U) comprises a valve body with a valve cavity defined therein and a positioning housing disposed at the rear end of the valve body. A telescopic mechanism is disposed within the positioning housing. The valve body is provided with an air inlet connected to the outside atmosphere and a gas detection channel connected to a gas monitoring terminal. A shaped plug is disposed within the valve cavity. The telescopic end of the telescopic mechanism passes through the rear end and middle portion of the shaped plug and connects to the front end of the shaped plug. The front end of the shaped plug, driven by the telescopic mechanism, seals or opens the air inlet. The middle portion of the shaped plug is capable of retracting. The middle and rear portions of the shaped plug prevent gas within the valve cavity from entering the interior of the telescopic mechanism. This device isolates the monitored gas from internal electrical components, providing an independent detection space. This prevents discharge from the device itself from igniting external gas, enabling gas collection in closed and complex environments.

[0004] In the above patent, an independent detection space is set up to realize the collection of gas in a closed and complex environment. However, in actual use, when collecting gas in dark wells and pipelines on the road, the dust inside the channel cannot be filtered well, so that the dust and gas are sucked into the device together, thereby reducing the accuracy of gas collection, affecting the subsequent analysis of the gas, and also damaging the sampling equipment. For this reason, this application provides a gas collection device. Utility Model Content

[0005] The purpose of this application is to solve the problem that when collecting gas in dark wells and pipelines on the road, the dust inside the channel cannot be filtered well, so that the dust and gas are sucked into the device together, thereby reducing the accuracy of gas collection. This application provides a gas collection device.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A gas collection device includes a collection box, one end of the collection box is fixedly connected to a connecting pipe, one end of the connecting pipe is fixedly connected to a collection port, the bottom of the collection box is fixedly connected to a handle, one end of the collection box is installed with a collection component, the bottom of the collection box is installed with a gas collection box, the interior of the collection box is installed with a filter component, the top of the collection box is installed with a limit component, and the top of the collection box is fixedly connected to a battery.

[0008] By adopting the above technical solution, first, by holding the handle, the connecting tube and the collection port are inserted into the pipeline to be tested, and then the collection component is started to operate to draw the gas in the pipeline into the collection box. When the gas enters the collection box, the filter component can effectively filter the drawn-in gas, thereby improving the purity of the gas, better protecting the equipment, and extending the service life of the equipment. Finally, the filtered gas will be guided to the inside of the gas collection box for collection.

[0009] Furthermore, a filter is fixedly connected to the interior of the collection port.

[0010] By adopting the above technical solution, the filter screen inside the collection port can effectively prevent larger impurities in the pipeline from entering the device.

[0011] Furthermore, the collection component includes an electric telescopic rod fixedly connected to one end of the collection box, the output end of the electric telescopic rod is fixedly connected to a fixed rod, one end of the fixed rod is fixedly connected to a sealing plate, and the shape and size of the sealing plate are consistent with the inner wall of the collection box.

[0012] By adopting the above technical solution, the electric telescopic rod is started to drive the sealing plate to move inside the collection box through the fixed rod. Since the sealing plate fits tightly against the inner wall of the collection box, when the sealing plate moves, negative pressure is generated in the internal cavity of the collection box, thereby drawing the gas in the pipeline into the interior of the collection box.

[0013] Furthermore, the filtering assembly includes a fixed column fixedly connected to the top of the collection box, a filter plate is slidably provided inside the fixed column, and a cover is provided on the top of the fixed column.

[0014] By adopting the above technical solution, the drawn-in gas can be effectively filtered through the filter plate, thereby improving the purity of the gas, making the data more accurate when the gas is analyzed later, and at the same time reducing dust from entering the equipment, thereby better protecting the equipment.

[0015] Furthermore, a sealing block is fixedly connected to the inside of the cover, and the shape and size of the sealing block are consistent with the inner wall of the fixing column. A sealing ring is fixedly connected to the inner wall of the cover.

[0016] By adopting the above technical solution, the sealing block and the sealing ring at the bottom of the cover can effectively improve the sealing between the cover and the fixed column, thereby reducing the possibility of gas leakage.

[0017] Furthermore, the limiting assembly includes a fixing frame 1 fixedly connected to the top of the collection box, the top of the collection box is fixedly connected to a fixing frame 2, the fixing frame 1 and the fixing frame 2 are respectively located on both sides of the fixed column, the internal rotation of the fixing frame 1 is connected to a screw rod, the top of the screw rod is fixedly connected to a knob, and the screw rod is threaded with an extrusion plate.

[0018] By adopting the above technical solution, the sealing performance of the device can be better improved by squeezing the cover by the squeezing plate, while the possibility of the cover loosening can be reduced.

[0019] Furthermore, a guide rod is fixedly connected to the interior of the second fixing frame, and one end of the extrusion plate away from the screw rod is slidably connected to the guide rod, and the extrusion plate is located above the cover.

[0020] By adopting the above technical solution, the extrusion plate can be gradually lowered on the screw rod as guided by the guide rod through the rotation of the screw rod until the bottom of the extrusion plate is completely fitted with the top of the cover.

[0021] Furthermore, a connecting pipe is fixedly connected to the bottom of the collection box, a threaded groove is provided on the top of the gas collection box, the top of the gas collection box is threadedly connected to the connecting pipe, and a one-way valve is fixedly connected to the gas collection box.

[0022] By adopting the above technical solution, after the gas is collected into the gas collection box, the one-way valve can be activated to prevent the gas inside the gas collection box from flowing back into the collection box, thereby maintaining the purity and stability of the gas in the gas collection box.

[0023] In summary, this application has at least one of the following beneficial effects:

[0024] 1. This application is provided with a filter assembly, and the filter plate is inserted into the interior of the fixed column, and then the lid is covered. The sealing block and the sealing ring can effectively improve the sealing between the lid and the fixed column, reducing the possibility of gas leakage. When the gas enters the interior of the collection box, the filter plate can effectively filter the drawn-in gas, thereby improving the purity of the gas, making the data more accurate when the gas is analyzed later, and at the same time reducing dust from entering the equipment, better protecting the equipment, and extending the service life of the equipment.

[0025] 2. In this application, a limit assembly is provided, and turning the knob drives the screw to rotate so that the bottom of the extrusion plate is completely fitted with the top of the lid. By squeezing the lid by the extrusion plate, the sealing of the device can be better improved, while reducing the possibility of the lid loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a cross-sectional view of the main body of the device in this application.

[0028] Figure 3 It is a cross-sectional view of the limit assembly in this application.

[0029] Figure 4 It is a schematic diagram of the connection structure between the collection box and the gas collection box in this application.

[0030] Description of reference numerals:

[0031] 1. Collection box; 2. Connecting pipe; 3. Collection port; 4. Handle; 5. Filter; 6. Collection assembly; 7. Gas collection box; 8. Filter assembly; 9. Limit assembly; 10. Battery; 11. Connecting pipe; 61. Electric telescopic rod; 62. Fixed rod; 63. Sealing plate; 81. Fixed column; 82. Filter plate; 83. Lid; 84. Sealing block; 85. Sealing ring; 91. Fixing frame 1; 92. Fixing frame 2; 93. Screw; 94. Knob; 95. Extrusion plate; 96. Guide rod; 71. Threaded groove; 72. One-way valve. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a gas collection device.

[0034] Reference Figure 1 、 Figure 2 and Figure 3 A gas collection device includes a collection box 1, one end of the collection box 1 is fixedly connected to a connecting pipe 2, one end of the connecting pipe 2 is fixedly connected to a collection port 3, a handle 4 is fixedly connected to the bottom of the collection box 1, a collection component 6 is installed at one end of the collection box 1, a gas collection box 7 is installed at the bottom of the collection box 1, a filter component 8 is installed inside the collection box 1, a limiting component 9 is installed on the top of the collection box 1, a battery 10 is fixedly connected to the top of the collection box 1, a filter screen 5 is fixedly connected inside the collection port 3, the collection component 6 includes an electric telescopic rod 61 fixedly connected to one end of the collection box 1, the output end of the electric telescopic rod 61 is fixedly connected to a fixed rod 62, one end of the fixed rod 62 is fixedly connected to a sealing plate 63, and the shape and size of the sealing plate 63 are consistent with the inner wall of the collection box 1.

[0035] When in use, first, by holding the handle 4, the connecting pipe 2 and the collection port 3 are inserted into the pipe to be tested. The filter 5 inside the collection port 3 can effectively prevent larger impurities in the pipe from entering the device. Then, the electric telescopic rod 61 is started to operate, and the sealing plate 63 is driven to move inside the collection box 1 through the fixed rod 62. Because the sealing plate 63 is tightly fitted with the inner wall of the collection box 1, when the sealing plate 63 moves, a negative pressure is generated in the cavity inside the collection box 1, thereby drawing the gas in the pipe into the collection box 1. When the gas enters the collection box 1, the filter assembly 8 can effectively filter the drawn gas, thereby improving the purity of the gas, making the data more accurate when the gas is analyzed later, and at the same time, it can also reduce dust from entering the equipment, better protect the equipment, and extend the service life of the equipment. Finally, the filtered gas will be guided to the inside of the gas collection box 7 for collection as the sealing plate 63 moves. In addition, by starting the limit assembly 9, the limit fixation of the filter assembly 8 can be released, and the filter assembly 8 can be replaced more conveniently and quickly.

[0036] Reference Figure 1 、 Figure 2 and Figure 3 The filter assembly 8 includes a fixed column 81 fixedly connected to the top of the collection box 1, a filter plate 82 is slidably provided inside the fixed column 81, a cover 83 is provided on the top of the fixed column 81, a sealing block 84 is fixedly connected to the inside of the cover 83, and the shape and size of the sealing block 84 are consistent with the inner wall of the fixed column 81, and a sealing ring 85 is fixedly connected to the inner wall of the cover 83;

[0037] Secondly, the limiting assembly 9 includes a fixing frame 1 91 fixedly connected to the top of the collection box 1, and a fixing frame 2 92 is fixedly connected to the top of the collection box 1. The fixing frame 1 91 and the fixing frame 2 92 are respectively located on both sides of the fixed column 81. The internal rotation of the fixing frame 1 91 is connected to a screw rod 93, and the top of the screw rod 93 is fixedly connected to a knob 94. The screw rod 93 is threadedly connected to an extrusion plate 95. The internal fixed connection of the fixing frame 2 92 is a guide rod 96. The end of the extrusion plate 95 away from the screw rod 93 is slidably connected to the guide rod 96. The extrusion plate 95 is located above the cover 83.

[0038] When in use, first insert the filter plate 82 into the interior of the fixing column 81, and then cover the lid 83. The sealing block 84 and the sealing ring 85 at the bottom of the lid 83 can effectively improve the sealing between the lid 83 and the fixing column 81, reducing the possibility of gas leakage. Then, turn the knob 94 to drive the screw rod 93 to rotate. The rotation of the screw rod 93 can make the extrusion plate 95 gradually descend on the screw rod 93 as guided by the guide rod 96 until the bottom of the extrusion plate 95 is completely in contact with the top of the lid 83. The extrusion of the lid 83 by the extrusion plate 95 can better improve the sealing of the device and reduce the possibility of loosening of the lid 83. Secondly, by turning the knob 94 in the opposite direction, the extrusion plate 95 can be driven to gradually move away from the top of the lid 83, thereby releasing the limit fixation of the lid 83. At this time, the lid 83 can be opened to quickly replace the filter plate 82.

[0039] Reference Figure 1 and Figure 4 The bottom of the collection box 1 is fixedly connected with a connecting pipe 11, the top of the gas collection box 7 is provided with a threaded groove 71, the top of the gas collection box 7 is threadedly connected to the connecting pipe 11, and a one-way valve 72 is fixedly connected to the gas collection box 7.

[0040] During use, the filtered gas will be guided to the inside of the gas collection box 7 for collection as the sealing plate 63 moves. After the gas is collected into the gas collection box 7, the one-way valve 72 can be activated to prevent the gas inside the gas collection box 7 from flowing back into the collection box 1, thereby maintaining the purity and stability of the gas in the gas collection box 7. Subsequently, by rotating the gas collection box 7, the threaded groove 71 and the connecting tube 11 are separated from each other, thereby completing the gas collection.

[0041] The working principle of the gas collection device of this embodiment is as follows: when in use, the filter plate 82 is first inserted into the interior of the fixed column 81, and then the cover 83 is covered. The sealing block 84 and the sealing ring 85 at the bottom of the cover 83 can effectively improve the sealing between the cover 83 and the fixed column 81, reducing the possibility of gas leakage. Then, the knob 94 is turned to drive the screw rod 93 to rotate. The rotation of the screw rod 93 can cause the extrusion plate 95 to gradually descend on the screw rod 93 under the guidance of the guide rod 96 until the bottom of the extrusion plate 95 is completely in contact with the top of the cover 83. The extrusion of the cover 83 by the extrusion plate 95 can better improve the sealing of the device and reduce the possibility of the cover 83 loosening.

[0042] Secondly, hold the handle 4 and insert the connecting tube 2 and the collection port 3 into the pipe to be tested. The filter 5 inside the collection port 3 can effectively prevent larger impurities in the pipe from entering the device. Then start the electric telescopic rod 61 to drive the sealing plate 63 to move inside the collection box 1 through the fixed rod 62. Because the sealing plate 63 fits tightly with the inner wall of the collection box 1, when the sealing plate 63 moves, a negative pressure is generated in the cavity inside the collection box 1, thereby drawing the gas in the pipe into the interior of the collection box 1. When the gas enters the interior of the collection box 1, the filter plate 82 can effectively filter the drawn-in gas, thereby Improve the purity of the gas, so that the data will be more accurate when the gas is analyzed later. At the same time, it can also reduce the dust from entering the equipment, better protect the equipment, and extend the service life of the equipment. Finally, the filtered gas will be guided to the inside of the gas collection box 7 for collection as the sealing plate 63 moves. When the gas is collected in the gas collection box 7, the one-way valve 72 can be activated to prevent the gas in the gas collection box 7 from flowing back into the collection box 1, thereby maintaining the purity and stability of the gas in the gas collection box 7. Then, by rotating the gas collection box 7, the threaded groove 71 and the connecting pipe 11 are separated from each other, thereby completing the gas collection.

[0043] In addition, by rotating the knob 94 in the reverse direction, the squeezing plate 95 can be driven to gradually move away from the top of the cover 83, thereby releasing the limit fixation of the cover 83. At this time, the cover 83 can be opened to quickly replace the filter plate 82.

Claims

1. A gas collection device, comprising a collection box (1), characterized in that: One end of the collection box (1) is fixedly connected to a connecting pipe (2), one end of the connecting pipe (2) is fixedly connected to a collection port (3), the bottom of the collection box (1) is fixedly connected to a handle (4), one end of the collection box (1) is installed with a collection assembly (6), the bottom of the collection box (1) is installed with a gas collection box (7), the interior of the collection box (1) is installed with a filter assembly (8), the top of the collection box (1) is installed with a limit assembly (9), and the top of the collection box (1) is fixedly connected to a battery (10).

2. A gas collection device according to claim 1, characterized in that: A filter screen (5) is fixedly connected to the interior of the collection port (3).

3. A gas collection device according to claim 1, characterized in that: The collection assembly (6) comprises an electric telescopic rod (61) fixedly connected to one end of the collection box (1); an output end of the electric telescopic rod (61) is passed through and fixedly connected to a fixed rod (62); one end of the fixed rod (62) is fixedly connected to a sealing plate (63); the shape and size of the sealing plate (63) are consistent with the inner wall of the collection box (1).

4. A gas collection device according to claim 1, characterized in that: The filter assembly (8) comprises a fixed column (81) fixedly connected to the top of the collection box (1), a filter plate (82) is slidably provided inside the fixed column (81), and a cover (83) is provided on the top of the fixed column (81).

5. A gas collection device according to claim 4, characterized in that: A sealing block (84) is fixedly connected to the inside of the cover (83), and the shape and size of the sealing block (84) are consistent with the inner wall of the fixed column (81). A sealing ring (85) is fixedly connected to the inner wall of the cover (83).

6. A gas collection device according to claim 1, characterized in that: The limiting assembly (9) includes a fixing frame 1 (91) fixedly connected to the top of the collection box (1), a fixing frame 2 (92) fixedly connected to the top of the collection box (1), the fixing frame 1 (91) and the fixing frame 2 (92) are respectively located on both sides of the fixed column (81), the fixing frame 1 (91) is internally rotatably connected to a screw rod (93), the top of the screw rod (93) is fixedly connected to a knob (94), and the screw rod (93) is threadedly connected to an extrusion plate (95).

7. A gas collection device according to claim 6, characterized in that: The interior of the second fixing frame (92) is fixedly connected to a guide rod (96), and one end of the extrusion plate (95) away from the screw rod (93) is slidably connected to the guide rod (96), and the extrusion plate (95) is located above the cover (83).

8. A gas collection device according to claim 1, characterized in that: The bottom of the collection box (1) is fixedly connected to a connecting pipe (11), the top of the gas collection box (7) is provided with a threaded groove (71), the top of the gas collection box (7) is threadedly connected to the connecting pipe (11), and a one-way valve (72) is fixedly connected to the gas collection box (7).

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