Air leakage detection device of air sampler

Abstract

The utility model belongs to the technical field of air leakage detection, and particularly relates to an air leakage detection device for an air sampler, which comprises a gas pipeline main body, the detection assembly comprises a mounting plate arranged above the gas pipeline body, side plates arranged on the two sides of the mounting plate and mounting frames symmetrically arranged between the two sets of side plates, first telescopic rods symmetrically arranged are fixed between the mounting frames and the side plates, and first springs are arranged on the surfaces of the first telescopic rods in a winding mode; the interior of the mounting frame is rotationally connected with a limiting pulley through a rotating shaft, an arc-shaped plate is fixed to one side of the mounting plate through a strip-shaped plate, the detection assembly is arranged, gas leakage detection can be flexibly conducted on gas conveying pipeline bodies with different diameters, and the use cost is reduced; the device does not need to be frequently replaced due to gas conveying pipeline bodies with different diameters, the using effect of the device is further improved, and the actual using requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of air leakage detection, and in particular relates to an air leakage detection device for an atmospheric sampler. Background Art

[0002] Environmental monitoring refers to the activities of environmental monitoring agencies to monitor and measure the environmental quality status. Environmental monitoring is to monitor and measure the indicators that reflect the environmental quality to determine the environmental pollution status and the level of environmental quality. The content of environmental monitoring mainly includes the monitoring of physical indicators, chemical indicators and ecosystems. Atmospheric detection is an important part of ecosystem detection. Before conducting atmospheric detection, it is necessary to use an atmospheric sampler to sample the atmosphere in the environment. An atmospheric sampler is an instrument or device for collecting atmospheric pollutants or polluted atmosphere. There are many types of atmospheric samplers. According to the collection object, they can be divided into gas (including steam) samplers and particulate samplers; according to the place of use, they can be divided into environmental samplers, indoor samplers and pollution source samplers. Pollution source samplers are mostly outdoor samplers. In order to ensure the airtightness of the pollution source sampler, a leak detection device is required to detect the airtightness of the pollution source sampler during use.

[0003] After checking the public (announcement) number; CN215492312U discloses a gas leakage detection device for an atmospheric sampler. This technology discloses "including a pull ring, an upper detection frame and a lower detection frame, the pull ring is fixed on the top outer wall of the upper detection frame, and the lower end of the left side wall of the upper detection frame is connected to the upper end of the left side wall of the lower detection frame through a hinge, etc. The gas leakage detection device for an atmospheric sampler has a simple structure, a small size, and a very convenient assembly and disassembly process, and is more suitable for outdoor use. The user uses the pull ring to move the gas leakage detection device on the gas pipeline of the atmospheric sampler, and can perform gas leakage detection on different positions of the gas pipeline of the atmospheric sampler without disassembling the structure, which is more convenient to use and other technical effects";

[0004] When the above design is used, although the structure is simple and the volume is small, and the air leakage detection can be performed on different positions of the air pipeline of the atmospheric sampler without disassembling the structure, it is difficult to perform air leakage detection on air pipelines of different diameters during use of the device. For air pipelines of different diameters, it is necessary to use a matching device, thereby increasing the use cost and reducing the use effect of the device;

[0005] In order to solve the above problems, the present application proposes an atmospheric sampler leakage detection device. Utility Model Content

[0006] To solve the problems raised in the above background technology. The utility model provides an atmospheric sampler gas leakage detection device, which can flexibly detect gas leakage on gas pipeline bodies of different diameters, reduce the use cost, and do not need to frequently replace the device due to gas pipeline bodies of different diameters, further improve the use effect of the device, and meet the actual use needs.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an atmospheric sampler gas leakage detection device, comprising a gas pipeline main body, a detection component installed on the gas pipeline main body, the detection component comprising a mounting plate arranged above the gas pipeline main body, side plates arranged on both sides of the mounting plate, and a mounting frame arranged symmetrically between the two groups of the side plates, a symmetrically arranged telescopic rod one is fixed between the mounting frame and the side plate, a spring one is wound around the surface of the telescopic rod one, the interior of the mounting frame is rotatably connected to a limiting pulley through a rotating shaft, an arc plate is fixed to one side of the mounting plate through a strip plate, a limiting slide rail is fixed to one side of the arc plate, a slider is slidably connected to the surface of the limiting slide rail, a connecting plate is fixed to the surface of the slider, a sealing cover is arranged below the connecting plate, an airflow detector is installed inside the sealing cover, and symmetrically arranged limiting rods are fixed to the upper surface of the sealing cover, and spring two are wound around the surface of the limiting rods.

[0008] As a preferred atmospheric sampler leakage detection device of the utility model, the two ends of the spring one are respectively fixedly connected to the side plate and the mounting frame, the surface of the connecting plate is provided with a sliding hole adapted to the limit rod, the limit rod and the connecting plate are slidably connected through the sliding hole, and the two ends of the spring two are respectively fixedly connected to the connecting plate and the sealing cover.

[0009] As a preferred embodiment of the air leakage detection device for an atmospheric sampler of the utility model, a fixing block is fixed to the upper surface of the sliding block, and a locking bolt is connected to the internal thread of the fixing block.

[0010] As a preferred embodiment of the air leakage detection device for an atmospheric sampler of the utility model, a silicone pad is fixed to one end of the locking bolt.

[0011] As a preferred embodiment of the air leakage detection device for an atmospheric sampler of the utility model, stoppers are fixed at both ends of the limit slide rail.

[0012] As a preferred embodiment of the gas leakage detection device for an atmospheric sampler of the utility model, scale lines are fixed on the surface of the arc-shaped plate.

[0013] As a preferred atmospheric sampler leakage detection device of the utility model, an auxiliary component is installed on the mounting plate, and the auxiliary component includes a threaded sleeve rotatably connected to the inside of the mounting plate through a bearing, a threaded rod threadedly connected to the two ends of the threaded sleeve, and two telescopic rods symmetrically arranged and fixed between the side plate and the mounting plate, one end of the threaded rod is fixedly connected to the side plate, a handle is fixed on the upper surface of the mounting plate, and the screw threads of the two groups of threaded rods are designed in opposite structures.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By setting up the detection component, it is possible to flexibly perform leakage detection on gas pipeline bodies of different diameters, thereby reducing the use cost. There is no need to frequently replace the device due to gas pipeline bodies of different diameters, further improving the use effect of the device and meeting actual use needs. An auxiliary component is added to this mechanism to indirectly adjust the elastic force of spring one. On the one hand, it can increase the elastic force of spring one and improve the clamping stability of the limiting pulley on the gas pipeline body, thereby reducing the elastic force of spring one on the other hand, thereby disassembling the device and further improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a right side view of the overall structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the sealing cover, the limiting rod and other connecting parts in the utility model;

[0020] Figure 4 For the utility model Figure 1 A is an enlarged structural diagram of FIG.

[0021] In the figure: 1. Gas pipeline body; 2. Detection component; 201. Side plate; 202. Telescopic rod one; 203. Spring one; 204. Mounting frame; 205. Limit pulley; 206. Mounting plate; 207. Arc plate; 208. Limit slide rail; 209. Stop block; 210. Slider; 211. Connecting plate; 212. Sealing cover; 213. Limit rod; 214. Airflow detector; 215. Fixing block; 216. Locking bolt; 217. Silicone pad; 218. Scale line; 219. Spring two; 3. Auxiliary component; 301. Threaded sleeve; 302. Threaded rod; 303. Telescopic rod two; 304. Handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1 As shown:

[0025] An atmospheric sampler gas leakage detection device comprises a gas transmission pipeline main body 1.

[0026] In this embodiment: the existing device {publication (announcement) number}: CN215492312U discloses a leakage detection device for an atmospheric sampler. This application makes further improvements on this existing main body. For details, please refer to the disclosed technology below; to solve the technical problems existing in this prior art, as disclosed in the background technology above, "the above-mentioned design is simple in structure and compact in size when in use, and can detect leakage at different positions of the atmospheric sampler gas pipeline without disassembling the structure, but this device is difficult to detect leakage for gas pipelines of different diameters during use. For gas pipelines of different diameters, corresponding devices need to be used, thereby increasing the cost of use and reducing the use effect of the device." In terms of combined use, this problem is obviously a real problem that exists and is relatively difficult to solve. In view of this, in order to solve this technical problem, a detection component 2 and an auxiliary component 3 are added to the application document, and the electrical equipment involved in this product are all powered by an external power supply.

[0027] More specifically:

[0028] like Figure 1-Figure 4 As shown:

[0029] A detection assembly 2 is installed on the gas pipeline body 1, and the detection assembly 2 includes a mounting plate 206 arranged above the gas pipeline body 1, side plates 201 arranged on both sides of the mounting plate 206, and a mounting frame 204 arranged symmetrically between the two sets of side plates 201. A symmetrically arranged telescopic rod 202 is fixed between the mounting frame 204 and the side plates 201, and a spring 203 is wound around the surface of the telescopic rod 202. The interior of the mounting frame 204 is rotatably connected to a limited pulley 205 through a rotating shaft. An arc plate 207 is fixed to one side of the mounting plate 206 through a strip plate, a limiting slide rail 208 is fixed to one side of the arc plate 207, a slider 210 is slidably connected to the surface of the limiting slide rail 208, a connecting plate 211 is fixed to the surface of the slider 210, a sealing cover 212 is arranged below the connecting plate 211, an airflow detector 214 is installed inside the sealing cover 212, and limiting rods 213 arranged symmetrically are fixed to the upper surface of the sealing cover 212, and a spring 219 is wound around the surface of the limiting rod 213;

[0030] The two ends of spring 1 203 are fixedly connected to the side plate 201 and the mounting frame 204 respectively. A sliding hole adapted to the limiting rod 213 is provided on the surface of the connecting plate 211. The limiting rod 213 and the connecting plate 211 are slidingly connected through the sliding hole. The two ends of spring 219 are fixedly connected to the connecting plate 211 and the sealing cover 212 respectively.

[0031] In the present embodiment: when the air sampler air leakage detection device is in use, when it is necessary to perform air leakage detection on the gas pipeline main body 1, first pull the mounting frame 204 to compress the telescopic rod 1 202 and the spring 1 203 until the gas pipeline main body 1 is stuck between the two sets of limiting pulleys 205, then release the mounting frame 204, at this time the spring 1 203 rebounds and drives the mounting frame 204 and the limiting pulley 205 to move, so that the two sets of limiting pulleys 205 clamp and limit the gas pipeline main body 1, then under the action of the spring 219, drive the sealing cover 212 to fit the surface of the gas pipeline main body 1, then push the mounting plate 206, enter and drive the limiting pulley 205 to move on the surface of the gas pipeline main body 1, and at the same time drive the sealing cover 212 synchronously The surface of the gas pipeline body 1 moves, and at the same time, real-time leakage detection is performed through the airflow detector 214. The sealing cover 212 can block the local position, so as to facilitate better detection by the airflow detector 214 and improve the detection effect. The sliding block 210 is moved to slide on the surface of the limiting slide rail 208, thereby driving the connecting plate 211 to rotate. The connecting plate 211 drives the sealing cover 212 to rotate synchronously through the limiting rod 213, so that the position of the connecting plate 211 can be changed, so as to detect different positions. Through the above operation, gas pipeline bodies 1 of different diameters can be flexibly detected for leakage, thereby reducing the use cost, and there is no need to frequently replace the device due to gas pipeline bodies 1 of different diameters, further improving the use effect of the device and meeting actual use needs.

[0032] It should be noted that the airflow detector 214 includes a sensor module, a data processing module, an alarm module and a display module. When the gas passes through the airflow detector 214, the sensor inside the airflow detector 214 will detect the flow rate and pressure changes of the gas, and then the built-in signal transmission device will transmit the detected data to the alarm, triggering the alarm to sound and light alarm.

[0033] It should be noted that the side of the sealing cover 212 close to the gas pipeline body 1 is designed to be in an arc-shaped surface, so that it can better fit closely to the surface of the gas pipeline body 1.

[0034] It should be noted that the overall size of the arc plate 207 and the limiting slide rail 208 is larger than the semicircular size. By placing this device below the gas pipeline body 1, the other side of the gas pipeline body 1 can be inspected.

[0035] Going further;

[0036] In an optional embodiment, a fixing block 215 is fixed to the upper surface of the slider 210, and a locking bolt 216 is connected to the inner thread of the fixing block 215;

[0037] A silicone pad 217 is fixed to one end of the locking bolt 216 .

[0038] In this embodiment: by rotating the locking bolt 216, the arc plate 207 is squeezed by the locking bolt 216, so as to lock the position of the slider 210. At the same time, the silicone pad 217 can make the locking bolt 216 play a protective effect during the squeezing process of the arc plate 207, and at the same time can increase the friction force and improve the fixing effect of the arc plate 207.

[0039] Going further;

[0040] In an optional embodiment, stoppers 209 are fixed to both ends of the limiting slide rail 208 .

[0041] In this embodiment, the setting of the stopper 209 can prevent the slider 210 from falling off, thereby preventing the slider 210 from falling off the limiting slide rail 208, causing the sealing cover 212 to fall and collide and deform, affecting the use effect.

[0042] Going further;

[0043] In an optional embodiment, scale lines 218 are fixed on the surface of the curved plate 207 .

[0044] In this embodiment, by setting the scale line 218, the slider 210 can slide to a suitable distance, avoiding omission of the moving position of the sealing cover 212, thereby improving the flexibility and practicality of the device.

[0045] Further,

[0046] In an optional embodiment, an auxiliary component 3 is installed on the mounting plate 206, and the auxiliary component 3 includes a threaded sleeve 301 rotatably connected to the inside of the mounting plate 206 through a bearing, a threaded rod 302 threadedly connected to both ends of the threaded sleeve 301, and a telescopic rod 303 symmetrically arranged between the side plate 201 and the mounting plate 206, one end of the threaded rod 302 is fixedly connected to the side plate 201, and a handle 304 is fixed on the upper surface of the mounting plate 206, and the threads of the two sets of threaded rods 302 are designed with opposite structures.

[0047] In this embodiment: when it is necessary to remove the limiting pulley 205 from the gas pipeline main body 1, hold the handle 304, rotate the threaded sleeve 301, and then drive the threaded rod 302 to move, and drive the side plate 201 to move by the movement of the threaded rod 302. Through the setting of the telescopic rod 203, the side plate 201 can be limited, so that the side plate 201 is more stable during the movement process. By adjusting the moving distance of the side plate 201, the elastic force of the spring 1 203 is indirectly adjusted. On the one hand, the elastic force of the spring 1 203 can be increased, and the clamping stability of the limiting pulley 205 on the gas pipeline main body 1 can be improved, while on the other hand, the elastic force of the spring 1 203 can be reduced, so that the device can be disassembled, and the use effect of the device is further improved.

[0048] Working principle and use process of the utility model: when the air sampler air leakage detection device is in use, when it is necessary to perform air leakage detection on the gas pipeline body 1, first pull the mounting frame 204 to compress the telescopic rod 1 202 and the spring 1 203 until the gas pipeline body 1 is stuck between the two sets of limit pulleys 205, then release the mounting frame 204, at this time the spring 1 203 rebounds and drives the mounting frame 204 and the limit pulley 205 to move, so that the two sets of limit pulleys 205 clamp and limit the gas pipeline body 1, then under the action of the spring 219, drive the sealing cover 212 to fit with the surface of the gas pipeline body 1, then push the mounting plate 206 to drive the limit pulley 205 to move between the gas pipeline body 1 The sealing cover 212 is moved on the surface of the gas pipeline body 1, and the sealing cover 212 is driven to move synchronously on the surface of the gas pipeline body 1. At the same time, the air leakage is detected in real time through the airflow detector 214. The sealing cover 212 can block the local position, so as to facilitate the airflow detector 214 to detect better and improve the detection effect. The sliding block 210 is moved on the surface of the limiting slide rail 208, thereby driving the connecting plate 211 to rotate. The connecting plate 211 drives the sealing cover 212 to rotate synchronously through the limiting rod 213, so that the position of the connecting plate 211 can be changed, so as to detect different positions. The setting of the scale line 218 can make the sliding block 210 slide to a suitable distance to avoid missing the moving position of the sealing cover 212, thereby improving The device is flexible and practical. The locking bolt 216 is then turned to squeeze the arc plate 207 through the locking bolt 216, so as to lock the position of the slider 210. At the same time, the silicone pad 217 can make the locking bolt 216 play a protective effect in the process of squeezing the arc plate 207, and at the same time, it can increase the friction force and improve the fixing effect of the arc plate 207. At the same time, the setting of the stopper 209 can prevent the slider 210 from falling off, preventing the slider 210 from falling off from the limiting slide rail 208, causing the sealing cover 212 to fall and collide and deform, affecting the use effect. Through the above operation, the gas pipeline main body 1 with different diameters can be flexibly detected for gas leakage, reducing the use cost, and there is no need to use the gas pipeline main body 1 with different diameters. The device is frequently replaced to further improve the use effect of the device and meet the actual use needs. When it is necessary to remove the limiting pulley 205 from the gas pipeline body 1, the handle 304 is held by hand, and the threaded sleeve 301 is rotated to drive the threaded rod 302 to move. The movement of the threaded rod 302 drives the side plate 201 to move. The setting of the telescopic rod 203 can limit the side plate 201, making the side plate 201 more stable during movement. By adjusting the moving distance of the side plate 201, the elastic force of the spring 1 203 is indirectly adjusted. On the one hand, the elastic force of the spring 1 203 can be increased, and the clamping stability of the limiting pulley 205 on the gas pipeline body 1 can be improved, thereby reducing the elastic force of the spring 1 203 on the other hand.Thereby, the device can be disassembled, and the use effect of the device can be further improved.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An atmospheric sampler leakage detection device, comprising a gas pipeline body (1), characterized in that: A detection assembly (2) is installed on the gas pipeline body (1), and the detection assembly (2) comprises a mounting plate (206) arranged above the gas pipeline body (1), side plates (201) arranged on both sides of the mounting plate (206), and a mounting frame (204) arranged symmetrically between two groups of the side plates (201), and symmetrically arranged telescopic rods (202) are fixed between the mounting frame (204) and the side plates (201), a spring (203) is wound around the surface of the telescopic rod (202), and the interior of the mounting frame (204) is rotatably connected to a limit pulley (205) via a rotating shaft, so that A curved plate (207) is fixed to one side of the mounting plate (206) via a strip plate, a limiting slide rail (208) is fixed to one side of the curved plate (207), a sliding block (210) is slidably connected to the surface of the limiting slide rail (208), a connecting plate (211) is fixed to the surface of the sliding block (210), a sealing cover (212) is arranged below the connecting plate (211), an airflow detector (214) is installed inside the sealing cover (212), symmetrically arranged limiting rods (213) are fixed to the upper surface of the sealing cover (212), and a spring 2 (219) is wound around the surface of the limiting rods (213).

2. The air sampler leakage detection device according to claim 1, characterized in that: The two ends of the spring 1 (203) are respectively fixedly connected to the side plate (201) and the mounting frame (204); a sliding hole matching the limit rod (213) is provided on the surface of the connecting plate (211); the limit rod (213) and the connecting plate (211) are slidably connected through the sliding hole; and the two ends of the spring 2 (219) are respectively fixedly connected to the connecting plate (211) and the sealing cover (212).

3. The air sampler leakage detection device according to claim 2, characterized in that: A fixing block (215) is fixed to the upper surface of the sliding block (210), and a locking bolt (216) is threadedly connected to the interior of the fixing block (215).

4. The air sampler leakage detection device according to claim 3, characterized in that: A silicone pad (217) is fixed to one end of the locking bolt (216).

5. The air sampler leakage detection device according to claim 4, characterized in that: Stoppers (209) are fixed at both ends of the position-limiting slide rail (208).

6. The air sampler leakage detection device according to claim 5, characterized in that: A scale line (218) is fixed on the surface of the arc-shaped plate (207).

7. The air sampler leakage detection device according to claim 6, characterized in that: An auxiliary component (3) is installed on the mounting plate (206), and the auxiliary component (3) comprises a threaded sleeve (301) rotatably connected to the inside of the mounting plate (206) through a bearing, a threaded rod (302) threadedly connected to the two ends of the threaded sleeve (301), and two telescopic rods (303) symmetrically arranged and fixed between the side plate (201) and the mounting plate (206), one end of the threaded rod (302) is fixedly connected to the side plate (201), a handle (304) is fixed on the upper surface of the mounting plate (206), and the screw threads of the two groups of threaded rods (302) are designed in opposite structures.

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