Gas detection device and intelligent carrier

Abstract

The invention discloses a gas detection device and an intelligent carrier, and relates to the technical field of gas detection. The device specifically comprises a stretching mechanism, the stretching mechanism comprises a telescopic shell set, a gas measuring piece and a folding rod set, and the telescopic shell set is provided with a plurality of shells which are connected in a sliding mode; the gas measuring piece is connected to a shell on the innermost side of the telescopic shell group; the folding rod set is contained in a shell on the innermost side of the telescopic shell set, a notch is formed in one side of the telescopic shell set, the folding rod set can be unfolded outwards from the notch of the telescopic shell set, and the input end of the gas measuring piece is connected to the tail end of the folding rod set. The telescopic shell group is composed of a plurality of shells connected in a sliding mode, the gas measuring piece is driven to be lifted to different heights by adjusting the height, the folding rod group can be horizontally unfolded, the input end of the gas measuring piece can be driven to move to different corners of a coal mine well through combined adjustment of the telescopic shell group and the folding rod group, and a stretching mechanism does not need to be moved to the position below a to-be-measured corner. The adaptability of environment measurement is greatly improved, and the measurement range is effectively expanded.

Description

Technical Field

[0001] This invention relates to the field of gas detection technology, and in particular to a gas detection device and intelligent carrier. Background Technology

[0002] Underground gas detection in coal mines is a key measure to ensure the safety of miners and prevent gas explosions. It can detect abnormal gas concentrations in a timely manner, understand the underground ventilation and gas distribution, ensure that the working environment meets safety requirements, and comply with mandatory provisions of laws and regulations. It is a fundamental task for achieving safe production in coal mines and preventing disasters and accidents.

[0003] Currently, existing technology uses inspection robots to detect methane concentration in coal mines. To improve overall measurement accuracy, the inspection robot is raised and lowered using guide rails to adjust the measuring end of its internal methane detector. This helps measure methane concentration at different depths in the coal mine. However, the above solution still has some drawbacks, as follows: Mine ventilation systems have dead zones, and insufficient airflow in undetected areas can cause gas to stagnate. Existing gas concentration measurements can only obtain the gas concentration in the vertical direction of the inspection robot. For corner areas that cannot be accessed or covered, the gas concentration in those areas cannot be measured. As the gas concentration accumulates, it may silently reach the explosion limit. At the same time, due to the complex terrain of coal mines, the tracks of the inspection robot may crush gravel and generate sparks when trying to detect the gas concentration in these areas, which may lead to an explosion.

[0004] Therefore, this application aims to solve the safety hazard of gas concentration not being effectively detected in hard-to-reach areas such as corners in coal mines, which can easily lead to gas accumulation, while avoiding the risks and efficiency problems caused by the inspection robot having to move to the bottom of the area for detection. Summary of the Invention

[0005] The main objective of this invention is to provide a gas detection device and intelligent carrier, which aims to optimize the structure of the gas detection device, expand the detection range in corner areas of coal mines, and eliminate the need to move it below the area to be detected.

[0006] To achieve the above objectives, the present invention proposes a gas detection device, including a stretching mechanism, wherein the stretching mechanism comprises: Telescopic shell assembly, which has multiple slidingly connected shells; A gas measuring device is connected to the innermost housing of the telescopic housing assembly; A folding rod assembly is housed in the innermost shell of the telescopic shell assembly. A slot is provided on one side of the telescopic shell assembly, and the folding rod assembly can be unfolded outward from the slot of the telescopic shell assembly. The input end of the gas measuring device is connected to the end of the folding rod assembly.

[0007] Furthermore, the telescopic shell assembly includes a first shell, a second shell, and a third shell nested together. A motor assembly is provided at the bottom of the first shell. A first pulley, a second pulley, and a third pulley are respectively provided on both sides of the first shell, the second shell, and the third shell. The output shaft of the motor assembly drives the rope to be wound sequentially around the first pulley, the second pulley, the third pulley, and the top of the third shell.

[0008] Furthermore, a fixed pulley is provided at the top of the third housing, and the rope is wound around the first pulley, the second pulley, the third pulley, and the fixed pulley on both sides.

[0009] Furthermore, a column is installed on the bottom wall of the third housing, one end of the folding rod assembly is rotatably disposed at the bottom end of the column, and the other end is connected to a slide table, which is slidably disposed on the outer wall of the column.

[0010] Furthermore, a gas measuring device is installed on the large surface of the sliding table, and a through hole is formed on the sliding table. The rope passes through the through hole and is connected to one of the through holes to drive the sliding table to slide and rise on the outer wall of the column.

[0011] Furthermore, the folding rod assembly is a scissor structure or a parallel rod assembly, which carries a synchronously folding hose. One end of the hose is connected to the input end of the gas measuring device, and the other end of the hose is placed at the end of the folding rod assembly.

[0012] Furthermore, the inner sidewalls of the first housing and the second housing are provided with sliding grooves, and the outer walls of the second housing and the third housing are provided with sliding strips, with two adjacent sliding grooves and sliding strips slidably connected.

[0013] Furthermore, the gas measuring device includes a gas measuring instrument and an air pump installed on the large surface of the slide table. The input end of the air pump is connected to the end of the folding rod assembly via a hose, and the output end of the air pump is connected to the input end of the gas measuring instrument.

[0014] Furthermore, a base is installed at the bottom of the third housing, and the motor unit includes a rope coil and a lifting motor distributed on both sides of the base. The output shaft of the lifting motor is connected to the rope coil and is used to drive the rope coil to wind or unwind the rope.

[0015] This application also discloses an intelligent vehicle comprising a chassis with wheels, on which a gimbal and the aforementioned gas detection device are mounted. The above technical solution has the following advantages: The extension mechanism of this application has a telescopic shell assembly. The telescopic shell assembly uses multiple slidingly connected shells to adjust the height, thereby lifting the gas measuring element to different heights. The innermost shell of the telescopic shell assembly can rise to the highest point. Therefore, the folding rod assembly and the gas measuring component are both integrated and installed in the innermost shell of the telescopic shell assembly. The folding rod assembly can be extended horizontally. By adjusting the combination of the folding rod assembly and the telescopic shell, the input end of the gas measuring element can be moved to different corners in the coal mine, increasing its corner measurement range. It is not necessary to move the extension mechanism below the corner to be measured, which greatly improves the adaptability of environmental measurement and effectively expands the measurement range. It can perform comprehensive and accurate measurements on multiple corner areas in complex spaces within the coal mine.

[0016] This application employs a rope-driven telescopic housing height adjustment mechanism, which simultaneously drives the slide table to move vertically along the outer wall of the column. By combining forward and reverse rotation of the lifting motor, the height of the telescopic housing can be adjusted. At the same time, while maintaining the height of the telescopic housing, the horizontal unfolding distance of the folding rod assembly can be adjusted by adjusting the height of the slide table. This centralized control of the vertical and horizontal movement distance of the gas measuring instrument input end reduces costs, frees up internal space in the third housing, improves the space utilization of the entire mechanism, and makes the structure more compact and rational. Attached Figure Description

[0017] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a first-view cross-sectional structural diagram of the extension mechanism of the present invention; Figure 3 This is a partial structural diagram of the extension mechanism of the present invention; Figure 4 This is a second-view cross-sectional structural diagram of the extension mechanism of the present invention; Figure 5 This is a side view of the extension mechanism of the present invention; Figure 6 This is a schematic diagram of the assembly of the rope and pulley of the present invention; Figure 7 This is a schematic diagram of the first state of the folding rod assembly of the present invention; Figure 8 This is a schematic diagram of the second state of the folding rod assembly of the present invention.

[0018] In the diagram: 1. Body; 2. Wheel; 3. Swing arm; 4. Antenna; 5. Extension mechanism; 51. Base; 52. Motor assembly; 521. Winding rope loop; 522. Lifting motor; 53. Telescopic shell assembly; 531. First shell; 5311. First pulley; 532. Second shell; 5321. Second pulley; 533. Third shell; 5331. Third pulley; 534. Slide groove; 535. Slide bar; 54. Gas measuring element; 541. Gas measuring instrument; 542. Air pump; 55. Fixed pulley; 56. Folding rod assembly; 57. Column; 58. Slide table; 581. Through hole; 59. Rope; 6. Pan-tilt unit. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the invention and do not constitute a limitation thereof.

[0020] like Figure 2 As shown, a gas detection device includes an extension mechanism 5, which includes a telescopic shell assembly 53, a gas measuring element 54, and a folding rod assembly 56. The telescopic shell assembly 53 has multiple slidably connected shells. The gas measuring element 54 is connected to the innermost shell of the telescopic shell assembly 53. The folding rod assembly 56 is housed in the innermost shell of the telescopic shell assembly 53. A slot is provided on one side of the telescopic shell assembly 53, and the folding rod assembly 56 can be extended outward from the slot of the telescopic shell assembly 53. The input end of the gas measuring element 54 is connected to the end of the folding rod assembly 56.

[0021] Specifically, multiple housings are slidably connected to each other, and their respective lifting and lowering can be achieved using independent drive units or by using the rope 59 described below. The gas measuring element 54 is installed in the innermost housing of the telescopic housing assembly 53, which facilitates the adjustment of the height of the gas measuring element 54 to achieve the corresponding required position. At the same time, the folding rod assembly 56 is also placed in the innermost housing of the telescopic housing assembly 53. It can be driven by an independent actuator or by the rope 59 described below. When the folding rod assembly 56 is unfolded outward, it extends outward through the vertical slot of the telescopic housing assembly 53. Its end can drive the input end of the gas measuring element 54 to move to different horizontal distances. Combined with the lifting and lowering height of the telescopic housing assembly 53, the input end of the gas measuring element 54 can be moved to the corner of the coal mine. At the same time, it is not necessary to place the extension mechanism 5 at the corner of the coal mine to obtain the gas concentration at the corresponding location, thereby improving the measurable range of the coal mine.

[0022] like Figure 2 and Figure 3As shown, the telescopic shell assembly 53 includes a first shell 531, a second shell 532, and a third shell 533 nested together. A motor assembly 52 is provided at the bottom of the first shell 531. A first pulley 5311, a second pulley 5321, and a third pulley 5331 are respectively provided on both sides of the first shell 531, the second shell 532, and the third shell 533. The output shaft of the motor assembly 52 drives the rope 59 to be wound around the first pulley 5311, the second pulley 5321, the third pulley 5331, and the top of the third shell 533 in sequence. The motor unit 52 drives the rope 59 to wind up or unwind. The rope 59 is wound sequentially around the top of the first pulley 5311, the second pulley 5321, the third pulley 5331, and the third housing 533. When the motor unit 52 winds up the rope 59, the rope 59 on the first pulley 5311, the second pulley 5321, and the third pulley 5331 on both sides contracts and shortens synchronously, thereby driving the second housing 532 and the third housing 533 to rise upwards, respectively, to their respective limit positions. When the rope 59 unwinds, the first pulley 5311, the second pulley 5321, and the third pulley 5331 relax and grow synchronously. Through the self-weight of the second housing 532 and the third housing 533, the second housing 532 and the third housing 533 descend until they return to their initial state.

[0023] like Figure 3 and Figure 6 As shown, for the alternative solution, a plate is provided at the top of the third housing 533, and two independent ropes 59 can be used to drive the extension mechanism 5 on both sides, and the same end of the ropes 59 can be fixed to the top of the third housing 533. In this application, preferably, a fixed pulley 55 is provided at the top of the third housing 533, and a rope 59 is wound around the first pulley 5311, the second pulley 5321, the third pulley 5331 and the fixed pulley 55 on both sides, so that the same rope 59 is wound for driving, and the fixed pulley 55 is used as a reversing wheel.

[0024] like Figures 2-4 As shown, a column 57 is installed on the bottom wall of the third housing 533. One end of the folding rod assembly 56 is rotatably mounted on the bottom end of the column 57, and the other end is connected to a slide table 58. The slide table 58 is slidably mounted on the outer wall of the column 57. The bottom end of the column 57 is fixedly mounted on the bottom end face of the third housing 533. When the slide table 58 slides vertically along the column 57, the slide table 58 gradually approaches the rotation point between the folding rod assembly 56 and the column 57. At this time, the folding rod assembly 56 will gradually unfold outward, thereby triggering the translation operation. This operation can be achieved by a pneumatic actuator or an electric actuator. For example, a cylinder or electric cylinder can be used independently to adjust the vertical height of the slide table 58, so that the height of the slide table 58 on the outer wall of the column 57 can be adjusted vertically to drive the folding rod assembly 56 to unfold outward.

[0025] like Figure 3 , Figure 5 and Figure 6 As shown, as an alternative embodiment of this application, the gas measuring element 54 can be installed on the inner wall of the third housing 533, so that the input end of the gas measuring element 54 extends to the end of the folding rod assembly 56 through a hose. Preferably, the gas measuring element 54 is installed on the large surface of the slide table 58. A through hole 581 is opened on the slide table 58, and a rope 59 passes through the through hole 581 and is connected to one of the through holes 581, so as to drive the slide table 58 to slide and rise on the outer wall of the column 57 through the rope 59.

[0026] The gas measuring element 54 is installed on the large surface of the slide table 58, such as the upper surface of the slide table 58. This minimizes the length of the hose of the gas measuring element 54 and reduces the number of turns of the hose around the third housing 533 to avoid tangling. At the same time, to ensure that the rope 59 can bypass the fixed pulley 55 and achieve single-rope drive, a through hole 581 is provided on the slide table 58 to provide retraction space for the rope 59 to pass through. In addition, the rope 59 can also be fixed to one of the through holes 581. For example, the outside of the rope 59 can be fixed to one of the through holes 581 by a follower block, which facilitates the subsequent lifting and lowering of the slide table 58 by the motor unit 52 to realize the unfolding and retraction of the folding rod group 56. This eliminates the need for the actuator inside the third housing 533, further reducing costs and freeing up space inside the third housing 533.

[0027] Specifically, such as Figure 3 , Figure 4 and Figure 6 As shown, a base 51 is installed at the bottom of the third housing 533. The motor unit 52 includes a rope coil 521 distributed on both sides of the base 51 and a lifting motor 522. The output shaft of the lifting motor 522 is connected to the rope coil 521 and is used to drive the rope coil 521 to wind or unwind the rope 59. The lifting motors 522 on both sides drive the rope loops 521 to rotate clockwise and counterclockwise respectively, causing the ropes 59 on the first pulley 5311, second pulley 5321, and third pulley 5331 on both sides to contract and shorten synchronously, thereby driving the second shell 532 and the third shell 533 to rise upwards, reaching their respective limit positions. When the lifting motors 522 on both sides drive the rope loops 521 to rotate counterclockwise and clockwise respectively, the ropes 59 on the first pulley 5311, second pulley 5321, and third pulley 5331 on both sides to relax and lengthen synchronously, descending under the gravity of the second shell 532 and the third shell 533. After the bottoms of the second shell 532 and the third shell 533 contact the corresponding limit blocks, they stop descending, and the telescopic shell assembly 53 returns to its initial state.

[0028] When the telescopic shell assembly 53 is raised or lowered to the required height, the unfolding distance of the folding rod assembly 56 needs to be adjusted. Both lifting motors 522 rotate synchronously and at the same speed in a clockwise direction, causing the rope 59 to move in a state of unwinding at one end and rewinding at the other. The total length of the rope 59 on the first pulley 5311, second pulley 5321, and third pulley 5331 remains unchanged, so the telescopic shell assembly 53 does not rise or fall and remains stationary. Meanwhile, the slide 58 moves along with the rope 59 via a follower block, thereby causing the slide 58 to slide downwards along the column 57, gradually moving the folding rod assembly 56. When extended outward, the input end of the gas measuring element 54 extends outward to the corner area; when both lifting motors 522 rotate synchronously and at the same speed in a counterclockwise direction, the rope 59 moves in a state of winding at one end and unwinding at the other end. The total length of the rope 59 on the first pulley 5311, the second pulley 5321, and the third pulley 5331 remains unchanged, so the telescopic shell assembly 53 does not rise or fall. The slide table 58 slides upward along the column 57 under the drive of the follower block, so that the folding rod assembly 56 gradually retracts from the slot of the telescopic shell assembly 53 into the interior of the third shell 533.

[0029] like Figure 7 and Figure 8 As shown, the folding rod assembly 56 is a combination of multiple scissor structures or parallel rods, carrying a synchronously folding hose. One end of the hose is connected to the input end of the gas measuring element 54, and the other end is located at the end of the folding rod assembly 56. In this application, the folding rod assembly 56 can be a scissor structure or a combination of multiple parallel rods. When the slide table 58 descends, the folding rod assembly 56 unfolds outwards; when the slide table 58 rises, the folding rod assembly 56 retracts inwards. When the folding rod assembly 56 unfolds or retracts, the hose unfolds or retracts synchronously with it (not shown in the figure), thus facilitating storage. The input end of the gas measuring element 54 is connected to the end of the scissor structure or parallel rods via a hose, facilitating the extension of the input end of the gas measuring element 54 to the required measuring point via the hose. This helps the gas pump 542 described below to draw gas from the measuring point via the hose and deliver the gas to the gas measuring instrument 541 described below.

[0030] like Figure 3 and Figure 4 As shown, the inner walls of the first housing 531 and the second housing 532 are each provided with a sliding groove 534, and the outer walls of the second housing 532 and the third housing 533 are each provided with a sliding strip 535. Adjacent sliding grooves 534 and sliding strips 535 are slidably connected. To improve the sliding stability of the adjacent first housing 531, second housing 532, and third housing 533, the sliding grooves 534 and sliding strips 535 are slidably connected to each other to achieve smooth lifting and lowering of the three. Preferably, the sliding strip 535 is integrally formed on the second housing 532 and the sliding groove 534.

[0031] like Figure 3 and Figure 5 As shown, the gas measuring component 54 includes a gas measuring instrument 541 and an air pump 542 mounted on the large surface of the slide table 58. The input end of the air pump 542 is connected to the end of the folding rod assembly 56 via a flexible hose, and the output end of the air pump 542 is connected to the input end of the gas measuring instrument 541. The gas measuring instrument 541 and the air pump 542 are integrated on the slide table 58, and the gas measuring component 54 and the folding rod assembly 56 are distributed on both sides of the column 57 to balance the overall weight of the slide table 58. The air pump 542 begins to draw air from the gas detection point and sends the drawn air to the gas measuring instrument 541 for detection via a flexible hose (such as a rubber connecting tube). The gas measuring instrument 541 then transmits the detected gas concentration data to the intelligent vehicle described below.

[0032] like Figure 1 As shown, an intelligent vehicle includes a body 1 with wheels 2. A gimbal 6 and the aforementioned gas detection device are mounted on the body 1. The intelligent vehicle includes a swing arm 3, an antenna 4, and the gimbal 6. The swing arm 3 is coaxially arranged with the corresponding wheels 2, facilitating obstacle crossing in different coal mine environments. The swing arm 3 can act as an auxiliary rod. The outer surface of the swing arm 3 preferably adopts a track-like design to increase the ground contact area. The antenna 4 is mounted above the body 1 for transmitting and receiving radio signals, which may include control commands, data transmission, etc. The gimbal 6 is mainly used to support sensors, cameras, and other equipment. It can fix these devices in suitable positions on the intelligent vehicle and provide a relatively stable platform. The intelligent vehicle of this application can be a cruising vehicle, an intelligent robot, etc.

[0033] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A gas detection device, characterized in that, Includes a stretching mechanism (5), said stretching mechanism (5) comprising: Telescopic shell assembly (53), which has multiple slidingly connected shells; Gas measuring element (54) is connected to the innermost shell of the telescopic shell assembly (53); The folding rod assembly (56) is housed in the innermost shell of the telescopic shell assembly (53). A slot is provided on one side of the telescopic shell assembly (53). The folding rod assembly (56) can be unfolded outward from the slot of the telescopic shell assembly (53). The input end of the gas measuring device (54) is connected to the end of the folding rod assembly (56).

2. The gas detection device as described in claim 1, characterized in that, The telescopic shell assembly (53) includes a first shell (531), a second shell (532), and a third shell (533) nested together. A motor assembly (52) is provided at the bottom of the first shell (531). A first pulley (5311), a second pulley (5321), and a third pulley (5331) are respectively provided on both sides of the first shell (531), the second shell (532), and the third shell (533). The output shaft of the motor assembly (52) drives the rope (59) to be wound around the top of the first pulley (5311), the second pulley (5321), the third pulley (5331), and the third shell (5331).

3. The gas detection device as described in claim 2, characterized in that, The top of the third housing (533) is provided with a fixed pulley (55), and the rope (59) is wound around the first pulley (5311), the second pulley (5321), the third pulley (5331) and the fixed pulley (55) on both sides.

4. The gas detection device as described in claim 3, characterized in that, The bottom wall of the third housing (533) is equipped with a column (57). One end of the folding rod assembly (56) is rotatably disposed at the bottom end of the column (57), and the other end is connected to a slide (58). The slide (58) is slidably disposed on the outer wall of the column (57).

5. The gas detection device as described in claim 4, characterized in that, The large surface of the slide (58) is equipped with a gas measuring element (54). A through hole (581) is opened on the slide (58). The rope (59) passes through the through hole (581) and is connected to one of the through holes (581) to drive the slide (58) to slide and rise on the outer wall of the column (57) via the rope (59).

6. The gas detection device as described in claim 1, characterized in that, The folding rod assembly (56) is a scissor structure or a parallel rod assembly, which carries a synchronously folding hose. One end of the hose is connected to the input end of the gas measuring device (54), and the other end of the hose is placed at the end of the folding rod assembly (56).

7. The gas detection device as described in claim 2, characterized in that, The inner sidewalls of the first housing (531) and the second housing (532) are provided with sliding grooves (534), and the outer walls of the second housing (532) and the third housing (533) are provided with sliding strips (535). Two adjacent sliding grooves (534) and sliding strips (535) are slidably connected.

8. The gas detection device as described in claim 5, characterized in that, The gas measuring device (54) includes a gas measuring instrument (541) and an air pump (542) installed on the large surface of the slide table (58). The input end of the air pump (542) is connected to the end of the folding rod assembly (56) through a hose, and the output end of the air pump (542) is connected to the input end of the gas measuring instrument (541).

9. The gas detection device as described in claim 2, characterized in that, The bottom end of the third housing (533) is equipped with a base (51). The motor unit (52) includes a rope loop (521) and a lifting motor (522) distributed on both sides of the base (51). The output shaft of the lifting motor (522) is connected to the rope loop (521) and is used to drive the rope loop (521) to wind up or unwind the rope (59).

10. An intelligent vehicle, characterized in that, It includes a fuselage (1) with wheels (2), on which a gimbal (6) and a gas detection device as described in any one of claims 1 to 9 are mounted.

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