Multi-component gas sampling device

Abstract

The utility model relates to the technical field of gas sampling, in particular to a multi-component gas sampling device which comprises a sampling machine, an induction mechanism, a gas exchange mechanism, a collecting seat and a lifting mechanism, the lifting mechanism is fixedly connected with the sampling machine, the gas exchange mechanism is fixedly connected with the sampling machine, and the induction mechanism is fixedly connected with the sampling machine. The collection seat comprises a ring sleeve, a sealing ring, a movable barrel, a plurality of spring pieces and a gas collection barrel, the ring sleeve is matched with the movable barrel capable of freely sliding, the function of keeping internal and external gas circulation after insertion is achieved, the communication of internal and external air of the sampling pipe is isolated after the ring sleeve is taken out, and the design is simple to operate and convenient to use. The problem that when a sampling pipe is taken out from a gas outlet pipe after gas collection is completed, external air is easily mixed into the sampling pipe, and the accuracy of a collection result and final detection is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sampling, in particular to a multi-component gas sampling device. Background Art

[0002] Existing gas sampling devices mostly use vacuum pumps to extract gas. The vacuum pumps will suck dust accompanying the gas into the sampling tube, reducing the purity of the gas. After long-term accumulation of dust, the suction tube will be blocked, causing the device to malfunction.

[0003] In the prior art, patent (CN213456315U) proposes a multi-component portable gas sampling device for detection, including a device body, a movable door is provided on the outer surface of the device body, and hand straps are provided on both sides of the device body. An air pump is installed on the upper part of the interior of the device body, and the suction end of the air pump is connected to an suction pipe. A dust cover is provided on the top of the suction pipe. When the utility model is used, the user opens the movable door and the dust cover. When the device is not working, the dust cover can prevent dust from entering the suction pipe. The sealing cover of the sampling pipe is opened, the outlet pipe is introduced into the sampling pipe, and the air pump is started. When the gas passes through the suction pipe, it passes through the first filter, the adsorption cotton sheet and the second filter in sequence. The first filter and the second filter filter the particulate dust contained in the gas, and the adsorption cotton sheet adsorbs some small molecular dust.

[0004] However, in the above-mentioned prior art, when the sampling tube is taken out from the outlet pipe after collecting gas, outside air is easily mixed into the sampling tube, affecting the collection result and the accuracy of the final detection. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-component gas sampling device, which solves the problem in the prior art that when the sampling tube is taken out from the outlet pipe after collecting gas, external air is easily mixed into the sampling tube, affecting the accuracy of the collection results and the final detection.

[0006] To achieve the above-mentioned objectives, the utility model provides a multi-component gas sampling device, including a sampler, a sensing mechanism, a ventilation mechanism, a collecting seat and a pulling mechanism, the pulling mechanism is fixedly connected to the sampler and is located above the sampler, the ventilation mechanism is fixedly connected to the sampler and is located on the front side of the sampler, the sensing mechanism is fixedly connected to the sampler and is located above the sampler, the collecting seat includes a ring sleeve, a sealing ring, a movable cylinder, a plurality of spring members and a gas collecting cylinder, the gas collecting cylinder is fixedly connected to the ring sleeve and is located on the inner side of the ring sleeve, each of the spring members is fixedly connected to the movable cylinder and is located on the circumferential side of the movable cylinder, the movable cylinder is slidably connected to the ring sleeve and is located on the inner side of the ring sleeve, the sealing ring is fixedly connected to the ring sleeve and is located on one side of the ring sleeve, and the ring sleeve is detachably connected to the ventilation mechanism and is located on one side of the ventilation mechanism.

[0007] Among them, the sampling machine includes a casing, a retractable rack, a tube rack and a control panel. The control panel is fixedly connected to the casing and is located on the front side of the casing. The tube rack is fixedly connected to the casing and is located on one side of the casing. The retractable rack is fixedly connected to the casing and is located below the casing.

[0008] The sensing mechanism includes a vertical rod and a sensing body. The sensing body is fixedly connected to the vertical rod and located at the upper end of the vertical rod. The lower end of the vertical rod is fixedly connected to the housing and located above the housing.

[0009] Among them, the ventilation mechanism includes an air inlet pipe, an air outlet pipe and a limit plate, the limit plate is fixedly connected to the air outlet pipe and is located on the circumferential side of the air outlet pipe, the air outlet pipe is fixedly connected to the casing and is located on the front side of the casing, and the air inlet pipe is fixedly connected to the casing and is located on the front side of the casing.

[0010] Among them, the pulling mechanism includes two mounting seats and a pulling ring, the two ends of the pulling ring are rotatably connected to the corresponding mounting seats and are respectively located on one side of the corresponding mounting seats, and the two mounting seats are fixedly connected to the casing and are located above the casing.

[0011] The utility model provides a multi-component gas sampling device. The ring sleeve is currently arranged to cooperate with the movable cylinder that can slide freely, thereby realizing the function of maintaining the internal and external gas circulation after plugging in. After the ring sleeve is taken out, the exchange of air inside and outside the sampling tube is isolated. This design is simple to operate and solves the problem that when the sampling tube is taken out from the outlet pipe after collecting gas, the outside air is easily mixed into the sampling tube, affecting the accuracy of the collection result and the final detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of a multi-component gas sampling device of the present invention.

[0014] Figure 2 This is a front view of a multi-component gas sampling device of the present invention.

[0015] Figure 3 This utility model Figure 2 AA line section view.

[0016] Figure 4 This utility model Figure 3 A magnified view of the local structure at point B.

[0017] 101- sampler, 102- sensing mechanism, 103- ventilation mechanism, 104- collecting seat, 105- pulling mechanism, 106- sleeve, 107- sealing ring, 108- movable cylinder, 109- spring member, 110- gas collecting cylinder, 111- housing, 112- retractable rack, 113- pipe rack, 114- control panel, 115- vertical pole, 116- sensing body, 117- air inlet pipe, 118- air outlet pipe, 119- limiting plate, 120- mounting seat, 121- pulling ring. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] See also Figures 1-4 ,in Figure 1 This is a schematic diagram of the overall structure of a multi-component gas sampling device of the present invention. Figure 2 This is a front view of a multi-component gas sampling device of the utility model. Figure 3 This utility model Figure 2 AA line section view, Figure 4 This utility model Figure 3 A magnified view of the local structure at point B.

[0020] The utility model provides a multi-component gas sampling device, including a sampler 101, a sensing mechanism 102, a ventilation mechanism 103, a collecting seat 104 and a pulling mechanism 105, wherein the collecting seat 104 includes a ring sleeve 106, a sealing ring 107, a movable cylinder 108, multiple spring members 109 and a gas collecting cylinder 110, the sampler 101 includes a casing 111, a shrinkage frame 112, a pipe rack 113 and a control panel 114, the sensing mechanism 102 includes a vertical rod 115 and a sensing body 116, the ventilation mechanism 103 includes an air inlet pipe 117, an air outlet pipe 118 and a limit plate 119, and the pulling mechanism 105 includes two mounting seats 120 and a pulling ring 121.

[0021] According to this specific embodiment, the pulling mechanism 105 is fixedly connected to the sampler 101, the ventilation mechanism 103 is fixedly connected to the sampler 101, the sensing mechanism 102 is fixedly connected to the sampler 101, the gas collecting cylinder 110 is fixedly connected to the ring sleeve 106, each of the spring members 109 is fixedly connected to the movable cylinder 108, the movable cylinder 108 is slidably connected to the ring sleeve 106, the sealing ring 107 is fixedly connected to the ring sleeve 106, the ring sleeve 106 is detachably connected to the ventilation mechanism 103, the control panel 114 is fixedly connected to the casing 111, the pipe rack 113 is fixedly connected to the casing 111, the retraction rack 112 is fixedly connected to the casing 111, the sensing body 116 is fixedly connected to the vertical pole 115, and the vertical pole 115 is fixedly connected to the vertical pole 115. The lower end of the rod 115 is fixedly connected to the casing 111, the limit plate 119 is fixedly connected to the air outlet pipe 118, the air outlet pipe 118 is fixedly connected to the casing 111, the air inlet pipe 117 is fixedly connected to the casing 111, and the two ends of the pulling ring 121 are rotatably connected to the corresponding mounting seats 120 respectively. Both mounting seats 120 are fixedly connected to the casing 111. The ring sleeve 106 currently provided cooperates with the freely slidable movable cylinder 108 to achieve the function of maintaining internal and external gas circulation after plugging in, and isolates the exchange of air inside and outside the sampling tube after the ring sleeve 106 is taken out. The design is simple to operate and solves the problem that when the sampling tube is taken out from the air outlet pipe 118 after collecting the gas, the outside air is easily mixed into the sampling tube, affecting the collection result and the accuracy of the final detection.

[0022] Among them, the pulling mechanism 105 is located above the sampler 101, the ventilation mechanism 103 is located on the front side of the sampler 101, the sensing mechanism 102 is located above the sampler 101, the gas collecting cylinder 110 is located on the inner side of the ring sleeve 106, each of the spring members 109 is located on the peripheral side of the movable cylinder 108, the movable cylinder 108 is located on the inner side of the ring sleeve 106, the sealing ring 107 is located on one side of the ring sleeve 106, and the ring sleeve 106 is located on one side of the ventilation mechanism 103. When collecting gas, the staff first aligns the sampling tube with the ring sleeve 106 having the sealing ring 107. At one end, plug in the sampling tube to ensure a sealed connection, then plug one end of the movable cylinder 108 into the outlet pipe 118, and hold the annulus 106 against the limit plate 119 to ensure that the movable cylinder 108 moves inside the annulus 106 to provide sufficient space for the gas collecting cylinder 110. The gas collecting cylinder 110 has a plurality of holes on its peripheral side. When these holes come into contact with the gas in the outlet pipe 118, the sampled gas enters the sampling tube. After collection, the annulus 106 is removed from the outlet pipe 118. At this time, the connection between the annulus 106 and the sampling tube is maintained to avoid leakage of the collected gas or influx of outside air.

[0023] Secondly, the control panel 114 is located on the front side of the casing 111, the pipe rack 113 is located on one side of the casing 111, the retractable rack 112 is located below the casing 111, the sensing body 116 is located at the upper end of the vertical pole 115, and the lower end of the vertical pole 115 is located above the casing 111. The retractable rack 112 is a common support rack with freely adjustable height in the market, which is used to maintain the stability of the casing 111. The pipe rack 113 is equipped with multiple sampling tubes, which is convenient for the staff to take and place the sampling tubes at any time. Each sampling tube can collect gas in different environments through the ring sleeve 106 and the exhaust pipe 118 to achieve multiple groups of sampling.

[0024] At the same time, the limiting plate 119 is located on the peripheral side of the air outlet pipe 118, the air outlet pipe 118 is located on the front side of the casing 111, the air inlet pipe 117 is located on the front side of the casing 111, and the two ends of the lifting ring 121 are respectively located on one side of the corresponding mounting seat 120. The two mounting seats 120 are both located above the casing 111. The two ends of the lifting ring 121 are freely rotated around the two mounting seats 120, so that the staff can lift the lifting ring 121 to adjust the height of the casing 111 and adjust the shrinkage frame 112. Make corresponding adjustments to keep the casing 111 stable, then turn on the switch on the casing 111, start the sensing body 116 through the control panel 114, measure the water vapor and basic element content in the air, and then connect the external suction equipment through the air inlet pipe 117. Take out the sampling tube from the pipe rack 113, align it with the end of the sleeve where the sealing ring 107 is provided, insert the sampling tube into the ring sleeve 106, and apply pressure in the direction of the air outlet pipe 118. The air in the casing 111 enters the sampling tube from the gas collecting cylinder 110, and the sampling work is completed.

[0025] In this embodiment, when collecting gas, the staff first aligns the sampling tube with one end of the ring sleeve 106 having the sealing ring 107, plugs the sampling tube to ensure a sealed connection, and then plugs one end of the movable cylinder 108 into the gas outlet pipe 118, and holds the ring sleeve 106 against the limit plate 119 to ensure that the movable cylinder 108 moves inside the ring sleeve 106 to provide sufficient space for the gas collecting cylinder 110. The surrounding side of the gas collecting cylinder 110 has multiple holes. When these holes come into contact with the gas in the gas outlet pipe 118, the sampled gas enters the sampling tube. After collection, the ring sleeve 106 is removed from the gas outlet pipe 118. At this time, the connection between the ring sleeve 106 and the sampling tube is maintained to prevent leakage of the collected gas or influx of outside air. The retractable frame 112 is a commonly used support frame with freely adjustable height on the market, which is used to maintain the stability of the casing 111. The tube rack 113 is equipped with multiple sampling tubes for easy work. The staff can take and place the sampling tube at any time. Each sampling tube can collect gas in different environments through the annular sleeve 106 and the outlet pipe 118 to realize multiple groups of sampling. The two ends of the pulling ring 121 are freely rotated around the two mounting seats 120, so that the staff can pull the pulling ring 121 to adjust the height of the casing 111 and make corresponding adjustments to the retracting frame 112 to keep the casing 111 stable. Then, the staff turns on the switch on the casing 111, starts the sensing body 116 through the control panel 114, measures the water vapor and basic element content in the air, and then connects the external suction equipment through the air inlet pipe 117. The sampling tube is taken out from the pipe rack 113, aligns with the end of the sleeve with the sealing ring 107, inserts the sampling tube into the annular sleeve 106, and applies pressure in the direction of the outlet pipe 118. The air in the casing 111 enters the sampling tube from the gas collecting cylinder 110 to complete the sampling work.

[0026] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A multi-component gas sampling device, comprising a sampler, a sensing mechanism, a ventilation mechanism, and a pulling mechanism, wherein the pulling mechanism is fixedly connected to the sampler and located above the sampler, the ventilation mechanism is fixedly connected to the sampler and located on the front side of the sampler, and the sensing mechanism is fixedly connected to the sampler and located above the sampler, characterized in that: It also includes a collecting seat, which includes a ring sleeve, a sealing ring, a movable cylinder, multiple spring parts and an air collecting cylinder. The air collecting cylinder is fixedly connected to the ring sleeve and is located on the inner side of the ring sleeve. Each of the spring parts is fixedly connected to the movable cylinder and is located on the circumference of the movable cylinder. The movable cylinder is slidably connected to the ring sleeve and is located on the inner side of the ring sleeve. The sealing ring is fixedly connected to the ring sleeve and is located on one side of the ring sleeve. The ring sleeve is detachably connected to the ventilation mechanism and is located on one side of the ventilation mechanism.

2. The multi-component gas sampling device according to claim 1, characterized in that: The sampling machine includes a casing, a retractable rack, a tube rack and a control panel. The control panel is fixedly connected to the casing and is located on the front side of the casing. The tube rack is fixedly connected to the casing and is located on one side of the casing. The retractable rack is fixedly connected to the casing and is located below the casing.

3. The multi-component gas sampling device according to claim 2, characterized in that: The sensing mechanism includes a vertical rod and a sensing body. The sensing body is fixedly connected to the vertical rod and located at the upper end of the vertical rod. The lower end of the vertical rod is fixedly connected to the housing and located above the housing.

4. The multi-component gas sampling device according to claim 3, characterized in that: The ventilation mechanism includes an air inlet pipe, an air outlet pipe and a limit plate. The limit plate is fixedly connected to the air outlet pipe and is located on the peripheral side of the air outlet pipe. The air outlet pipe is fixedly connected to the casing and is located on the front side of the casing. The air inlet pipe is fixedly connected to the casing and is located on the front side of the casing.

5. The multi-component gas sampling device according to claim 4, characterized in that: The lifting mechanism includes two mounting seats and a lifting ring, and the two ends of the lifting ring are respectively are rotatably connected to the corresponding mounting seat and are respectively located on one side of the corresponding mounting seat, The two mounting seats are both fixedly connected to the casing and are located above the casing.

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