Gas detecting and sampling device for stoping goaf

Abstract

The invention relates to the technical field of gas detection and sampling, in particular to a gas detection and sampling device for a stoping goaf, which comprises a bottom plate, a collection unit and a storage unit, the bottom plate is fixedly provided with a storage box, the collection unit comprises an adjusting box fixedly arranged on the storage box, a sliding groove is formed in the adjusting box, and the storage unit is arranged in the sliding groove. A sliding plate is arranged in the sliding groove in a sliding mode, a gas conveying pipe is fixedly arranged on the sliding plate, a collector is fixedly arranged at the tail end of the gas conveying pipe, the collecting unit is used for sampling and collecting gas in a goaf, and a worker can store a plurality of storage bags in the device storage box through a partition plate arranged on the storage box; when the storage bag needs to be used for gas storage, only the sliding plate needs to be shifted, and the sampling gas stored in the specific chamber can be used by adjusting the position of the pressing plate through the pressing plate adjusting and controlling device arranged on the adjusting box.

Description

Technical Field

[0001] The invention relates to the technical field of gas detection and sampling, in particular to a gas detection and sampling device for a mining goaf area. Background Art

[0002] Gas detection mainly uses gas sensors to detect the types of gases present in the environment. Gas sensors are sensors used to detect the composition and content of gases. In urban management, staff are required to conduct air gas detection in urban areas to obtain urban air quality detection data. Gas detection usually uses a gas detector.

[0003] A gas detector is an instrument tool for detecting gas leakage concentration, including portable gas detectors, handheld gas detectors, fixed gas detectors, online gas detectors, etc. It mainly uses gas sensors to detect the types of gases present in the environment. Gas sensors are sensors used to detect the composition and content of gases. Gas sampling is the process of collecting samples of pollutants or contaminated air in the atmosphere.

[0004] During gas detection operations in coal mine goafs, workers usually use gas sampling bags to collect gas samples in closed areas. Since a single sampling bag can only reflect the instantaneous gas concentration at a local location, and the gas distribution inside the goaf often has uneven phenomena such as stratification and eddy currents, in order to ensure the comprehensiveness and accuracy of the detection data, it is usually necessary to perform repeated sampling at different depths and orientations. Each time sampling is performed, the worker must manually disassemble the connection between the air pump and the sampling bag, replace the filled old bag with a new one, and then reinstall the seal, affecting the efficiency of gas sampling in multiple areas. Summary of the invention

[0005] Based on the above-mentioned problems existing in the prior art, the problem to be solved by the present application is: in order to ensure the comprehensiveness and accuracy of the detection data, it is usually necessary to carry out repeated sampling at different depths and orientations. Each time sampling is carried out, the staff must manually disassemble the connection device between the air pump and the sampling bag, replace the filled old bag with a new sampling bag, and then reinstall the seal. This process not only requires repeated tightening of the clamp and checking of air tightness, but may also lead to operational errors due to the narrow space and dim light underground.

[0006] The technical solution adopted by the present application to solve the technical problem is: a gas detection sampling device for a goaf area, comprising a bottom plate, a storage box is fixedly arranged on the bottom plate, and also comprises a collection unit and a storage unit; The collection unit comprises an adjustment box fixedly arranged on the storage box, a slide groove is provided in the adjustment box, a slide plate is slidably arranged in the slide groove, a gas pipeline is fixedly arranged on the slide plate, a collector is fixedly arranged at the end of the gas pipeline, and the collection unit is used to sample and collect gas in the goaf; The storage unit includes a partition fixedly arranged in the storage box, a plurality of evenly arranged connecting pipes are slidably arranged on the top of the storage box, a bellows is fixedly arranged on one end of the slide, a regulating groove is opened on the side wall of the regulating box, a guide rod is fixedly arranged on the outer peripheral surface of the bellows, and the guide rod is slidably connected to the regulating groove. The storage unit is used to transfer, receive, and store the gas collected by the collector.

[0007] Preferably, the partition divides the storage box into four storage chambers of equal size, two symmetrically arranged pull rods are fixedly provided on the outer circumference of the storage box, and a layer of anti-slip sleeve is provided on the outer circumference of the pull rods.

[0008] Preferably, the slide groove is located above the regulating groove, and the regulating groove is arranged in a curved shape, and a limiting device for fixing the position of the guide rod is provided at the bending part of the regulating groove.

[0009] Preferably, the limiting device includes a vertical groove opened on the regulating box, a cylinder is slidably arranged in the vertical groove, a pressure plate is fixedly arranged on one end of the cylinder, a cylinder is slidably arranged on the other end of the cylinder, and a pressing plate is fixedly arranged on the cylinder.

[0010] Preferably, a groove is provided on the side wall of the vertical groove, a snap plate 1 is fixedly arranged on the groove, a limiting groove is provided in the adjusting box, a horizontal plate is slidably arranged in the limiting groove, the horizontal plate is fixedly connected to the cylinder, a snap plate 2 which fits with the snap plate 1 is fixedly arranged on the cylinder, a circular plate 2 is fixedly arranged in the cylinder, a circular plate 1 is fixedly arranged on the outer circumferential surface of the cylinder, the circular plate 1 is slidably connected to the cylinder, and a spring 2 is fixedly arranged between the circular plates 1 and 2.

[0011] Preferably, a positioning shaft is fixedly provided on the inner wall of the storage box, and an adjustment plate is fixedly provided on the positioning shaft. The adjustment plate is telescopically provided, and the top of the adjustment plate is V-shaped.

[0012] Preferably, a sleeve shell is fixedly provided in the storage box, the sleeve shell and the connecting tube are coaxially arranged, a clamping ring is fixedly provided on the outer peripheral surface of the connecting tube, the lower end of the clamping ring is inclined, a bracket one is fixedly provided on the side wall of the regulating plate, a bracket two is fixedly provided at the upper end of the storage box, a telescopic limit plate is rotatably provided on the bracket two, a guide groove is provided on the bracket one, a rotating shaft is fixedly provided on the side wall of the limit plate, and the rotating shaft is slidably connected to the guide groove.

[0013] Preferably, a turntable is fixedly provided on the outer circumferential surface of the connecting tube, a spring three is fixedly provided on the turntable, and the other end of the spring three is fixedly connected to the storage box.

[0014] Preferably, a long strip is fixedly provided inside the shell, a swivel is rotatably provided on the long strip, a scraper is fixedly provided on the swivel, a clamping column is fixedly provided on the side wall of the scraper, an arc groove is opened on the inner wall of the connecting tube, and the clamping column is slidably connected to the arc groove.

[0015] Preferably, a second baffle is fixedly provided on the top of the scraper, the second baffle is elastically provided, and a first baffle is fixedly provided on the inner wall of the connecting pipe, the first baffle abuts against the second baffle.

[0016] The beneficial effects of the present application are as follows: the present application provides a gas detection sampling device for a goaf area, which enables a worker to store multiple storage bags in the device storage box through a partition plate arranged on the storage box. When the storage bag needs to be used for gas storage, it is only necessary to move the slide plate, and then the device is adjusted by a button plate arranged on the adjustment box, and the storage sampling gas in a specific chamber is used by adjusting the position of the button plate; The swivel arranged in the casing enables the scraper fixed on the swivel to rotate when the connecting pipe is used to receive the gas. At this time, the rotating scraper can remove impurities on the inner wall of the connecting pipe. At the same time, the permeability of the connecting pipe is controlled by baffles one and two to ensure that the device can be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the storage box of the present invention; Figure 3 It is a schematic diagram of the structure of the regulating box of the present invention; Figure 4 It is a schematic diagram of the internal structure of the regulating box of the present invention; Figure 5 It is a schematic diagram of the local structure of the present invention; Figure 6It is a side view structural schematic diagram of the present invention; Figure 7 for Figure 6 The enlarged structural diagram at A in the middle; Figure 8 It is a schematic diagram of the internal structure of the casing of the present invention; Fig. 9 It is a schematic diagram of the internal structure of the connecting pipe of the present invention.

[0018] In the figure: 1, bottom plate; 2, storage box; 21, pull rod; 22, partition; 23, protection plate; 231, connecting plate; 232, clamping plate; 24, spring 1; 25, positioning shaft; 26, regulating plate; 261, bracket 1; 2611, guide groove; 27, bracket 2; 271, limit plate; 272, rotating shaft; 3, regulating box; 31, slide groove; 32, regulating groove; 33, vertical groove; 331, groove; 332, buckle plate 1; 333, limit groove; 34, horizontal plate; 3 41. Pressing plate; 35. Cylinder; 351. Round plate one; 352. Spring two; 36. Round plate two; 37. Cylinder; 371. Buckle plate two; 38. Pressing plate; 4. Slide plate; 41. Gas pipe; 42. Collector; 43. Bellows; 431. Guide rod; 5. Connecting pipe; 51. Snap ring; 52. Baffle one; 53. Arc groove; 6. Shell; 61. Long strip; 62. Swivel; 63. Scraper; 631. Clamping column; 64. Baffle two; 7. Turntable; 71. Spring three. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] Reference Figure 1-Figure 5 , a gas detection sampling device for mining goaf, comprising a bottom plate 1, a storage box 2 is fixedly arranged on the bottom plate 1, and also comprising a collection unit and a storage unit; The collection unit includes an adjustment box 3 fixedly arranged on the storage box 2, a slide groove 31 is provided in the adjustment box 3, a slide plate 4 is slidably arranged in the slide groove 31, a gas delivery pipe 41 is fixedly arranged on the slide plate 4, and a collector 42 is fixedly arranged at the end of the gas delivery pipe 41. The collection unit is used to sample and collect gas in the goaf; The storage unit includes a partition 22 fixedly arranged in the storage box 2, a plurality of evenly arranged connecting tubes 5 are slidably arranged on the top of the storage box 2, a bellows 43 is fixedly arranged on one end of the slide plate 4, a regulating groove 32 is opened on the side wall of the regulating box 3, a guide rod 431 is fixedly arranged on the outer peripheral surface of the bellows 43, and the guide rod 431 is slidably connected to the regulating groove 32. The storage unit is used to transfer, receive, and store the gas collected by the collector 42.

[0022] Reference Figure 1-Figure 3 The partition 22 divides the storage box 2 into four storage chambers of equal size. Two symmetrically arranged pull rods 21 are fixedly provided on the outer circumference of the storage box 2, and a layer of anti-slip sleeve is sleeved on the outer circumference of the pull rod 21. A protective plate 23 is slidably arranged in each storage chamber, and a spring 24 is fixedly arranged on the bottom of the protective plate 23. The spring 24 is fixedly connected to the bottom plate 1, and a connecting plate 231 is fixedly arranged on the protective plate 23. A clamping plate 232 is fixedly arranged on the connecting plate 231. The pull rod 21 arranged on the side wall of the storage box 2 is convenient for the staff to take the device. At the same time, the anti-slip sleeve arranged on the pull rod 21 increases the friction between the pull rod 21 and the palm to avoid slipping.

[0023] Reference Figure 1-Figure 3 The slide groove 31 is located above the regulating groove 32, and the regulating groove 32 is set in a curved shape. A limiting device for fixing the position of the guide rod 431 is provided at the bending part of the regulating groove 32. By setting the regulating groove 32 to be completely set, the staff can control the up and down movement of the bellows 43 during the process of sliding the slide 4 at one end.

[0024] Reference Figure 3-Figure 5 The limiting device includes a vertical groove 33 provided on the regulating box 3, a cylinder 35 is slidably arranged in the vertical groove 33, a pressure plate 341 is fixedly arranged on one end of the cylinder 35, a cylinder 37 is slidably arranged on the other end of the cylinder 35, and a pressing plate 38 is fixedly arranged on the cylinder 37. By setting the vertical groove 33 on the regulating box 3, when the staff adjusts the position of the pressing plate 38, a gap will appear in the vertical groove 33. When the bellows 43 moves to the bottom of the regulating groove 32, it can directly slide into the vertical groove 33 to ensure that the connecting pipe 5 and the gas pipe 41 can be aligned.

[0025] Reference Figure 3-Figure 5A groove 331 is provided on the side wall of the vertical groove 33, and a snap plate 332 is fixedly provided on the groove 331. A limit groove 333 is provided in the regulating box 3, and a horizontal plate 34 is slidably provided in the limit groove 333. The horizontal plate 34 is fixedly connected to the cylinder 35. A snap plate 2 371 which fits with the snap plate 1 332 is fixedly provided on the cylinder 37. A circular plate 2 36 is fixedly provided in the cylinder 35. A circular plate 1 351 is fixedly provided on the outer circumference of the cylinder 37. The circular plate 1 351 and the cylinder 35 are fixedly provided. A sliding connection is provided, with a spring 2 352 fixedly arranged between the circular plate 1 351 and the circular plate 2 36. When the staff presses the pressing plate 38, the cylinder 37 can be pushed to move, and the moving cylinder 37 can drive the snap plate 2 371 to disengage from the snap plate 1 332. At this time, the position of the pressing plate 341 can be adjusted by moving it up and down. When idle, the elastic force of the spring 2 352 can keep the snap plate 2 371 and the snap plate 1 332 engaged with each other, avoiding the lateral movement of the pressing plate 38 and ensuring the overall stability of the device.

[0026] Reference Figure 1-Figure 3 A positioning shaft 25 is fixedly provided on the inner wall of the storage box 2, and an adjusting plate 26 is fixedly provided on the positioning shaft 25. The adjusting plate 26 is telescopically provided, and the top of the adjusting plate 26 is V-shaped. By providing the adjusting plate 26 on the storage box 2, it is achieved that during the movement of the guide rod 431, when the guide rod 431 moves to the bottom of the adjusting groove 32, the guide rod 431 contacts the top of the adjusting plate 26 and presses down the telescopic adjusting plate 26 during the movement.

[0027] Reference Figure 6-Figure 8 A sleeve 6 is fixedly provided in the storage box 2, and the sleeve 6 is coaxially arranged with the connecting tube 5. A snap ring 51 is fixedly provided on the outer circumference of the connecting tube 5, and the lower end of the snap ring 51 is inclined. A bracket 1 261 is fixedly provided on the side wall of the regulating plate 26, and a bracket 27 is fixedly provided at the upper end of the storage box 2. A telescopic limiting plate 271 is rotatably provided on the bracket 27, and a guide groove 2611 is provided on the bracket 1 261. A rotating shaft 272 is fixedly provided on the side wall of the limiting plate 271, and the rotating shaft 272 is connected to the regulating plate 26. The guide grooves 2611 are slidingly connected, and the connecting tube 5 that is in direct contact with the bellows 43 will be pressed down and moved during the downward movement of the bellows 43, and the limit plate 271 will be driven to rotate through the bracket 261 during the movement of the regulating plate 26. At this time, the other end of the limit plate 271 is tilted, and the connecting tube 5 is in a free telescopic state. When the bellows 43 is separated from the connecting tube 5, the limit plate 271 is in a descending state, and the telescopic limit plate 271 can contact the retaining ring 51 to press down the connecting tube 5, so that it returns to its original position.

[0028] Reference Figure 7-Figure 9A turntable 7 is fixedly provided on the outer circumferential surface of the connecting tube 5, and a spring three 71 is fixedly provided on the turntable 7. The other end of the spring three 71 is fixedly connected to the storage box 2. By setting the turntable 7 on the outer circumferential surface of the connecting tube 5, the spring three 71 can push the connecting tube 5 to move upward when the device is used.

[0029] Reference Figure 7-Figure 9 A long strip plate 61 is fixedly provided inside the casing 6, a swivel 62 is rotatably provided on the long strip plate 61, a scraper 63 is fixedly provided on the swivel 62, a clamping column 631 is fixedly provided on the side wall of the scraper 63, an arc groove 53 is provided on the inner wall of the connecting tube 5, the clamping column 631 is slidably connected with the arc groove 53, and the swivel 62 provided on the long strip plate 61 can realize that the scraper 63 can be driven to rotate through the arc groove 53 during the movement of the connecting tube 5, and the rotating scraper 63 can scrape and clean the impurities in the connecting tube 5.

[0030] Reference Figure 7-Figure 9 A baffle 2 64 is fixedly provided on the top of the scraper 63, and the baffle 2 64 is elastically provided. A baffle 1 52 is fixedly provided on the inner wall of the connecting pipe 5, and the baffle 1 52 abuts against the baffle 2 64. By means of the baffle 2 64 provided on the scraper 63 and the baffle 1 52 in the connecting pipe 5, the baffle 2 64 can be controlled during the rotation of the scraper 63, thereby controlling the flow of gas in the connecting pipe 5.

[0031] The specific solution is as follows: when using the device, the staff first aligns and installs the prepared gas storage bag with the various connecting pipes 5 in the storage box 2. When a certain storage bag needs to be used, the pressing plate 38 at the corresponding position is toggled. At this time, a gap will appear in the vertical groove 33. When the bellows 43 moves to the bottom of the regulating groove 32, it can directly slide into the vertical groove 33 to ensure that the connecting pipe 5 and the gas supply pipe 41 can be aligned. When pressing the pressing plate 38, the cylinder 37 can be pushed to move, and the moving cylinder 37 can drive the second snap plate 371 to disengage from the first snap plate 332. At this time, the position of the adjusting pressing plate 341 can be adjusted up and down. When idle, the elastic force of the second spring 352 can keep the second snap plate 371 and the first snap plate 332 engaged with each other to avoid the lateral movement of the pressing plate 38. In order to ensure the overall stability of the device, the connecting tube 5 in direct contact with the bellows 43 will be pressed down and moved during the downward movement of the bellows 43, and the limit plate 271 will be driven to rotate through the bracket 261 during the movement of the regulating plate 26. At this time, the other end of the limit plate 271 is tilted, and the connecting tube 5 is in a free telescopic state. When the bellows 43 is separated from the connecting tube 5, the limit plate 271 is in a descending state. The telescopic limit plate 271 can contact the clamping ring 51 to press down the connecting tube 5, so that it returns to its original position, and as the storage bag expands, the protective plate 23 will be pressed down. The moving protective plate 23 drives the clamping plate 232 to move downward through the connecting plate 231, thereby controlling the movement of the connecting tube 5, disconnecting the gas supply, and ensuring the stability of the air pressure inside the storage bag.

[0032] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary, and within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the above aspects of the present invention, which are not provided in detail for the sake of simplicity.

[0033] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas detection sampling device for a goaf area, comprising a bottom plate (1), on which a storage box (2) is fixedly arranged, characterized in that: It also includes a collection unit and a storage unit; The collection unit comprises an adjustment box (3) fixedly arranged on the storage box (2), a slide groove (31) is provided in the adjustment box (3), a slide plate (4) is slidably arranged in the slide groove (31), a gas transmission pipe (41) is fixedly arranged on the slide plate (4), and a collector (42) is fixedly arranged at the end of the gas transmission pipe (41), and the collection unit is used to sample and collect gas in the goaf; The storage unit comprises a partition (22) fixedly arranged in the storage box (2); a plurality of evenly arranged connecting pipes (5) are slidably arranged on the top of the storage box (2); a bellows (43) is fixedly arranged on one end of the slide plate (4); a regulating groove (32) is provided on the side wall of the regulating box (3); a guide rod (431) is fixedly arranged on the outer peripheral surface of the bellows (43); the guide rod (431) is slidably connected to the regulating groove (32); and the storage unit is used to transfer, receive, store and store the gas collected by the collector (42).

2. A gas detection sampling device for goaf recovery according to claim 1, characterized in that: The partition (22) divides the storage box (2) into four storage chambers of equal size. Two symmetrically arranged pull rods (21) are fixedly arranged on the outer circumference of the storage box (2), and a layer of anti-slip sleeve is sleeved on the outer circumference of the pull rods (21). A protection plate (23) is slidably arranged in each storage chamber. A spring 1 (24) is fixedly arranged on the bottom of the protection plate (23). The spring 1 (24) is fixedly connected to the bottom plate (1). A connecting plate (231) is fixedly arranged on the protection plate (23), and a clamping plate (232) is fixedly arranged on the connecting plate (231).

3. A gas detection sampling device for goaf recovery according to claim 1, characterized in that: The slide groove (31) is located above the regulating groove (32), and the regulating groove (32) is arranged in a curved shape. A limiting device for fixing the position of the guide rod (431) is provided at the bending portion of the regulating groove (32).

4. A gas detection sampling device for goaf recovery according to claim 3, characterized in that: The limiting device comprises a vertical groove (33) provided on the regulating box (3), a cylinder (35) being slidably disposed in the vertical groove (33), a pressing plate (341) being fixedly disposed on one end of the cylinder (35), a column (37) being slidably disposed on the other end of the cylinder (35), and a pressing plate (38) being fixedly disposed on the column (37).

5. A gas detection sampling device for goaf recovery according to claim 4, characterized in that: A groove (331) is provided on the side wall of the vertical groove (33), a first snap plate (332) is fixedly provided on the groove (331), a limiting groove (333) is provided in the regulating box (3), a horizontal plate (34) is slidably provided in the limiting groove (333), the horizontal plate (34) is fixedly connected to the cylinder (35), a second snap plate (371) is fixedly provided on the cylinder (37) and is in contact with the first snap plate (332), a second circular plate (36) is fixedly provided in the cylinder (35), a first circular plate (351) is fixedly provided on the outer circumference of the cylinder (37), the first circular plate (351) is slidably connected to the cylinder (35), and a second spring (352) is fixedly provided between the first circular plate (351) and the second circular plate (36).

6. A gas detection sampling device for goaf recovery according to claim 1, characterized in that: A positioning shaft (25) is fixedly arranged on the inner wall of the storage box (2), and an adjustment plate (26) is fixedly arranged on the positioning shaft (25); the adjustment plate (26) is telescopically arranged, and the top of the adjustment plate (26) is V-shaped.

7. A gas detection sampling device for goaf recovery according to claim 6, characterized in that: A sleeve (6) is fixedly arranged in the storage box (2), the sleeve (6) and the connecting tube (5) are coaxially arranged, a clamping ring (51) is fixedly arranged on the outer peripheral surface of the connecting tube (5), the lower end of the clamping ring (51) is arranged at an inclination, a bracket 1 (261) is fixedly arranged on the side wall of the regulating plate (26), a bracket 2 (27) is fixedly arranged at the upper end of the storage box (2), a telescopic limit plate (271) is rotatably arranged on the bracket 2 (27), a guide groove (2611) is formed on the bracket 1 (261), a rotating shaft (272) is fixedly arranged on the side wall of the limit plate (271), and the rotating shaft (272) is slidably connected to the guide groove (2611).

8. A gas detection sampling device for goaf recovery according to claim 7, characterized in that: A rotating disk (7) is fixedly arranged on the outer peripheral surface of the connecting tube (5), a spring three (71) is fixedly arranged on the rotating disk (7), and the other end of the spring three (71) is fixedly connected to the storage box (2).

9. A gas detection sampling device for goaf recovery according to claim 7, characterized in that: A long strip (61) is fixedly arranged inside the casing (6), a rotating ring (62) is rotatably arranged on the long strip (61), a scraper (63) is fixedly arranged on the rotating ring (62), a clamping column (631) is fixedly arranged on the side wall of the scraper (63), an arc groove (53) is opened on the inner wall of the connecting pipe (5), and the clamping column (631) is slidably connected to the arc groove (53).

10. A gas detection sampling device for goaf recovery according to claim 9, characterized in that: A second baffle (64) is fixedly arranged on the top of the scraper (63), and the second baffle (64) is elastically arranged. A first baffle (52) is fixedly arranged on the inner wall of the connecting pipe (5), and the first baffle (52) abuts against the second baffle (64).

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