Detection fixing equipment for spark detector

Abstract

The invention belongs to the field, and particularly relates to detection fixing equipment for a spark detector, which comprises a fixing frame connected with a coal conveying device, a conveying channel extending along the length direction of the fixing frame is arranged on the upper side of the fixing frame and close to the front side, and a conveying mechanism is arranged in the conveying channel. And a fixing mechanism for positioning the spark detector is arranged between the conveying mechanism and the fixing frame. The conveying mechanism is provided with two driving assemblies in bilateral symmetry, the driving assembly located on the right side is connected with a reversing assembly, and the driving assembly on the right side is matched with the reversing assembly to drive the conveying mechanism to move in the direction opposite to the moving direction of the coal conveying line. The fixing mechanism comprises a positioning plate which is fixedly arranged on the fixing frame through two supports which are in bilateral symmetry. According to the invention, the spark detection precision can be ensured on the premise of reducing the investment cost of the whole coal conveyor line spark detection equipment.

Description

Technical Field

[0001] The invention belongs to the field of fixing equipment, and in particular relates to a detection fixing equipment for a spark detector. Background Art

[0002] Spark detectors are important equipment used to detect and prevent sparks from igniting fires or explosions during the transportation of flammable dust, fibers and other materials. When installing, they are generally installed at the location where sparks are most likely to cause fires, and as far away as possible from strong magnetic fields, strong electric fields and other equipment that may interfere with the normal operation of the spark detector.

[0003] In the transportation of flammable solids, for example, on the conveyor line of coal, static electricity is easily generated due to the friction and collision between particles, or the friction between the conveyor belt and the coal. Static electricity discharge may generate sparks, and coal is a flammable material. Once there is a spark, it may cause a fire. In this case, the spark detector is generally fixed and installed at a certain distance along the conveyor line, and the spark detector is fixed to the conveying frame of the conveyor line through the mounting bracket.

[0004] However, this conventional spark detector fixed equipment has the following defects: 1. Since sparks are easily generated during coal transportation, a spark detector needs to be installed at a short distance. The coal transportation line is relatively long, so a large number of spark detectors are needed to fully meet the detection needs of the entire transportation line, which increases the use cost and maintenance cost; 2. Under normal circumstances, coal is transported underground in coal mines. Most sparks are easily extinguished automatically in the humid and oxygen-deficient coal mine environment after they are generated. It is possible that the spark detector detects sparks in a certain area of ​​the conveyor line and sounds an alarm, but the sparks are automatically extinguished. After the staff shut down the machine and rushed to the scene, they did not find the source of the risk, which affected the production efficiency of the entire production line and had great limitations on use. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides a detection fixing device for a spark detector, which can ensure the spark detection accuracy while reducing the equipment investment cost of the spark detection of the entire coal conveyor line.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: The present invention provides a detection fixing device for a spark detector, comprising a fixed frame connected to a coal conveying device, a conveying channel extending along its length direction is opened on the upper side and near the front side of the fixed frame, a conveying mechanism is arranged in the conveying channel, and a fixing mechanism for positioning the spark detector is arranged between the conveying mechanism and the fixed frame. Two left-right symmetrical driving components are arranged on the conveying mechanism, and a reversing component is connected to the driving component located on the right side, and the right driving component cooperates with the reversing component to drive the conveying mechanism to move in the direction opposite to the moving direction of the coal conveying line. The fixing mechanism includes a positioning plate fixedly arranged on the fixed frame by two left-right symmetrical brackets, and a plurality of guide channels distributed along its length direction and in a strip-shaped structure are opened on the surface of the positioning plate, a sliding component is arranged between the conveying mechanism and the corresponding guide channel, a fixing component for fixing the spark detector is arranged on the sliding component, and a locking component is arranged between the fixing component and the positioning plate.

[0007] According to a favorable embodiment, the conveying mechanism includes two conveying rollers rotatably arranged in the conveying channel and symmetrically distributed left and right, a conveying belt is rotatably sleeved between the two conveying rollers, and the rear ends of the two conveying rollers are respectively connected to corresponding driving components.

[0008] According to a preferred embodiment, two symmetrical through holes are provided on the upper side of the fixed frame and near the rear side, and the driving assembly includes a positioning plate rotatably arranged in the through hole, and the rear end of the conveying roller movably extends to the corresponding through hole and is fixedly connected to the front side of the adjacent positioning plate. A locking plate is also rotatably arranged in the through hole, and the rear side of the locking plate is rotatably arranged on the rear inner wall of the through hole through a rotating shaft, and an active cavity is provided inside the locking plate, and a plurality of sliding holes distributed along its circumferential direction and connected to the active cavity are provided on the front side of the locking plate, and a sliding plate made of iron that slides along the front and rear directions is provided in the active cavity, a first spring is fixedly provided between the rear side of the sliding plate and the rear inner wall of the active cavity, and a plurality of first locking pins are fixedly provided on the front side of the sliding plate, a first positioning groove is provided on the rear side of the positioning plate at a position opposite to the first positioning pin, and a first electromagnet with a disc structure is fixedly provided on the front inner wall of the active cavity.

[0009] According to a favorable embodiment, the rear end of the left rotating shaft is connected to the coal conveying device, and the reversing assembly includes two gears that mesh with each other, one of which is fixedly connected to the right rotating shaft, and a connecting shaft is rotatably provided on the fixed frame near the right rotating shaft, and the other gear is fixedly provided on the connecting shaft, and the rear end of the connecting shaft is also connected to the coal conveying device.

[0010] According to a favorable embodiment, the sliding assembly includes a sliding seat, a portion of the sliding seat close to the lower side is slidably arranged in the conveying channel, and a plurality of ball bearings distributed in a matrix are rollingly arranged on the lower side of the sliding seat, the ball bearings are in rolling contact with the conveyor belt, and guide wheels are rotatably arranged on the front and rear sides of the sliding seat and close to the lower side, and the guide wheels are rollingly connected to the inner wall of the conveying channel.

[0011] According to a preferred embodiment, the fixed assembly includes a first connecting column with a cylindrical structure fixedly connected to the upper side of the sliding seat, a guide ring is rotatably provided on the surface of the first connecting column, and the guide ring is rotatably connected to the inner wall of the corresponding guide channel, a second connecting column is fixedly provided on the upper side of the first connecting column, and the spark detector located on the far left is fixedly provided on the upper side of the positioning plate and close to the starting end of the coal conveying device, and any spark detector except the far left spark detector is fixedly provided on the front side of the corresponding second connecting column and close to the upper side.

[0012] According to an advantageous embodiment, a mounting groove in a rectangular structure is provided on the upper side of the first connecting column, and a rubber sleeve is fixedly sleeved on the lower end of the second connecting column, and the rubber sleeve is fixedly disposed in the mounting groove.

[0013] According to a preferred embodiment, the locking assembly includes a first connecting plate fixedly connected to the outer wall of the first connecting column and having a T-shaped structure, a longer section of the first connecting plate is slidably connected to two front-to-back symmetrical guide rods, and a second electromagnet is fixedly provided on the lower side of the longer section of the first connecting plate, the lower ends of the two guide rods are commonly fixedly connected to an iron second connecting plate, the guide rod is located between the first connecting plate and the second connecting plate and is sleeved with a second spring, a plurality of second locking pins linearly distributed front to back are fixedly provided on the lower side of the second connecting plate, the upper side of the positioning plate is located on the right side of each guide channel and is provided with a second positioning groove linearly distributed front to back, the lower end of the second locking pin is slidably plugged into the corresponding second positioning groove.

[0014] According to a preferred embodiment, two infrared receivers are fixedly provided symmetrically on the upper side of the positioning plate near the rear side of each guide channel, and an infrared transmitter is fixedly provided on the outer wall of the first connecting column near the upper side through a third connecting plate.

[0015] According to a favorable embodiment, a plurality of first support rods are fixedly provided on the lower side of the fixed frame along its length direction, the lower ends of the support rods are threadedly connected to second support rods, and the lower ends of the second support rods are rotatably connected to support seats via ball joints.

[0016] Compared with the prior art, the detection fixing device for a spark detector provided in the embodiment of the present invention has the following features:

[0017] Beneficial effects:

[0018] 1. In the present invention, the conveying mechanism provided can cooperate with the fixing mechanism, and when the previous spark detector detects a spark, the next spark detector can be quickly controlled to approach the risk source instead of manual secondary detection, and corresponding measures can be taken according to the secondary detection results, thereby saving manpower while ensuring detection accuracy. In addition, since the spark detector can be moved when needed, the distance between two adjacent spark detectors can be appropriately lengthened under normal conditions, thereby reducing the investment in equipment while keeping the length of the entire coal conveyor line unchanged.

[0019] 2. In the present invention, the conveying mechanism cooperates with two driving components and a reversing component, and can use the driving force of the coal conveying device itself to drive the conveying mechanism to work. The conveyor belt on the conveying mechanism is automatically controlled to drive the spark detector to move left and right for detection and resetting as needed, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an external first-view stereoscopic structural diagram of the present invention.

[0021] Figure 2 It is an external second-viewing perspective stereoscopic structure diagram of the present invention.

[0022] Figure 3 It is a schematic three-dimensional diagram of the local structure of the fixing mechanism in the present invention.

[0023] Figure 4 It is a schematic diagram of the connection structure of the present invention as a whole and an external coal conveying device.

[0024] Figure 5 It is a schematic diagram of the connection structure of the sliding component, the fixing component and the locking component in the present invention.

[0025] Figure 6 It is an external three-dimensional structural diagram of the locking assembly in the present invention.

[0026] Figure 7 It is a top plan view of the fixing frame in the present invention.

[0027] Figure 8 It is a top view and a cross-sectional plan view of the left conveying roller and the corresponding driving assembly in the present invention.

[0028] Fig. 9 It is a top view and a cross-sectional plan view of the right conveying roller and the corresponding driving assembly and reversing assembly in the present invention.

[0029] Reference numerals in the figure: 1, fixed frame; 2, conveying channel; 3, conveying mechanism; 31, conveying roller; 32, conveying belt; 4, fixing mechanism; 41, positioning plate; 42, guide channel; 43, sliding assembly; 431, sliding seat; 432, ball bearing; 433, guide wheel; 44, fixing assembly; 441, first connecting column; 442, guide ring; 443, second connecting column; 444, rubber sleeve; 45, locking assembly; 451, first connecting plate; 452, guide rod; 453, second electromagnet; 454. second connecting plate; 455. second spring; 456. second locking pin; 5. driving assembly; 51. positioning plate; 52. locking plate; 53. movable chamber; 54. sliding plate; 55. first spring; 56. first locking pin; 57. first positioning groove; 58. first electromagnet; 59. rotating shaft; 6. reversing assembly; 61. gear; 62. connecting shaft; 7. infrared receiver; 8. infrared transmitter; 9. first support rod; 10. second support rod; 11. support seat; 12. spark detector. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-9 The present application is further described in detail.

[0031] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 7 A detection fixing device for a spark detector comprises a fixed frame 1 connected to a coal conveying device, a plurality of first support rods 9 are fixedly arranged on the lower side of the fixed frame 1 along its length direction, a second support rod 10 is threadedly connected to the lower end of the support rod, and a support seat 11 is rotatably connected to the lower end of the second support rod 10 through a ball joint, so as to facilitate supporting the fixed frame 1. A conveying channel 2 extending along its length direction is provided on the upper side of the fixed frame 1 and close to the front side, a conveying mechanism 3 is arranged in the conveying channel 2, and a fixing mechanism 4 for positioning the spark detector 12 is arranged between the conveying mechanism 3 and the fixed frame 1. Two left-right symmetrical driving assemblies 5 are arranged on the conveying mechanism 3, and a reversing assembly 6 is connected to the driving assembly 5 on the right side. The coal conveying device consists of a conveying frame, a plurality of driving rollers connected to each other through a sprocket group, and a conveying belt. The fixing frame 1 is fixedly connected to the side wall of the conveying frame, and the conveying mechanism 3 and the fixing mechanism 4 can cooperate to fix the spark detector 12 at a predetermined position and control the spark detector 12 to move back and forth along the conveying direction of the coal conveying device.

[0032] See also Figure 7 , Figure 8 and Fig. 9The conveying mechanism 3 includes two conveying rollers 31 rotatably arranged in the conveying channel 2 and symmetrically distributed on the left and right. A conveying belt 32 is rotatably sleeved between the two conveying rollers 31. The rear ends of the two conveying rollers 31 are respectively connected to the corresponding driving components 5. Two symmetrical through holes are provided on the upper side of the fixed frame 1 and near the rear side. The driving assembly 5 includes a positioning plate 51 rotatably arranged in the through hole. The rear end of the conveying roller 31 movably extends into the corresponding through hole and is fixedly connected to the front side of the adjacent positioning plate 51. A locking plate 52 is also rotatably arranged in the through hole. The rear side of the locking plate 52 is rotatably arranged on the rear inner wall of the through hole through a rotating shaft 59. An active cavity 53 is provided inside the locking plate 52. A plurality of sliding holes distributed along its circumferential direction and all connected to the active cavity 53 are provided on the front side of the locking plate 52. An iron sliding plate 54 that slides along the front-to-back direction is provided in the active cavity 53. A first spring 55 is fixedly provided between the rear side of the sliding plate 54 and the rear inner wall of the active cavity 53. A plurality of first locking pins 56 are fixedly provided on the front side of the sliding plate 54. A first positioning groove 57 is provided on the rear side of the positioning plate 51 opposite to the first positioning pin. A first electromagnet 58 with a disc structure is fixedly provided on the front inner wall of the active cavity 53.

[0033] See also Figure 7 , Figure 8 and Fig. 9 , the rear end of the left rotating shaft 59 is fixedly connected to the driving roller in the coal conveying device, the reversing assembly 6 includes two gears 61 meshing with each other, one gear 61 is fixedly connected to the right rotating shaft 59, a connecting shaft 62 is rotatably arranged near the right rotating shaft 59 on the fixed frame 1, another gear 61 is fixedly arranged on the connecting shaft 62, and the rear end of the connecting shaft 62 is also fixedly connected to the driving roller in the coal conveying device. The left rotating shaft 59 is directly fixedly connected to the driving roller of the coal conveying device, and the connecting shaft 62 is fixedly connected to the driving roller, so that the two gears 61 rotate, thereby driving the right rotating shaft 59 to rotate in the opposite direction of the driving roller.

[0034] After the first electromagnet 58 is energized, the sliding disk 54 is attracted, so that the sliding disk 54 drives the first locking pin 56 to move toward the positioning disk 51, and the first locking pin 56 will eventually come into contact with the rear surface of the positioning disk 51. Since the locking disk 52 is connected to the driving roller in the coal mine conveying device through the rotating shaft 59, it will rotate with the driving roller, so that the first locking pin 56 will come into contact with the rear surface of the positioning disk 51 and rotate on the surface of the positioning disk 51. When the first locking pin 56 rotates to the first locking groove opened on the rear surface of the positioning disk 51, the first locking pin 56 will be inserted into the first locking groove driven by the adsorption force of the first electromagnet 58, so that the locking disk 52 and the positioning disk 51 are relatively fixed. When one of the spark detectors 12 detects a spark, the spark detector 12 located on the right side of the spark detector 12 that detected the spark releases the restriction of the locking assembly 45, so that the corresponding spark detector 12 can move along the length direction of the positioning plate 41, and the locking plate 52 on the right side docks with the positioning plate 51. The driving roller will drive the right rotating shaft 59 to rotate in the opposite direction of the driving roller under the action of the reversing assembly 6, so that the right locking plate 52 and the positioning plate 51 rotate synchronously, so that the conveying roller 31 on the right side fixedly connected to the positioning plate 51 drives the conveyor belt 32 to move to the left from the initial position. When the detection is completed, the right locking plate 52 is separated from the positioning plate 51, and then the left locking plate 52 is docked with the positioning plate 51. The conveying roller 31 on the left directly drives the conveyor belt 32 to move to the right in the same direction as the coal mine conveyor line through the rotation of the driving roller to reset. Finally, the left locking plate 52 is separated from the positioning plate 51, and the spark detector 12 returns to the initial position and is locked again by the locking assembly 45.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 5The fixing mechanism 4 includes a positioning plate 41 fixed on the fixing frame 1 by two left-right symmetrical brackets. The surface of the positioning plate 41 is provided with a plurality of guide channels 42 distributed along its length direction and in a strip-shaped structure. A sliding assembly 43 is provided between the conveying mechanism 3 and the corresponding guide channel 42. A fixing assembly 44 for fixing the spark detector 12 is provided on the sliding assembly 43. A locking assembly 45 is provided between the fixing assembly 44 and the positioning plate 41. The sliding assembly 43 includes a slide seat 431. The portion of the slide seat 431 close to the lower side is slidably provided in the conveying channel 2. A plurality of ball bearings 432 distributed in a matrix are rollingly provided on the lower side of the slide seat 431. The ball bearings 432 are rollingly abutted against the conveying belt 32. Guide wheels 433 are rotatably provided on the front and rear sides of the slide seat 431 and close to the lower side. The guide wheels 433 are rollingly connected to the inner side wall of the conveying channel 2. The fixed assembly 44 includes a first connecting column 441 with a cylindrical structure fixedly connected to the upper side of the slide 431. A guide ring 442 is rotatably provided on the surface of the first connecting column 441. The guide ring 442 is rotatably connected to the inner wall of the corresponding guide channel 42. A second connecting column 443 is fixedly provided on the upper side of the first connecting column 441. The spark detector 12 located on the far left is fixedly provided on the upper side of the positioning plate 41 near the starting end of the coal conveying device. Any spark detector 12 except the spark detector 12 on the far left is fixedly provided in front of and near the upper side of the corresponding second connecting column 443. When the conveyor belt 32 drives a certain spark detector 12 to move, the slide 431 under the remaining spark detectors 12 that remain stationary is connected to the conveyor belt 32 through the ball bearing 432, which can reduce the friction when the slide 432 and the conveyor belt 32 move relative to each other.

[0036] In order to ensure the accuracy of spark detection while reducing the equipment investment cost of spark detection on the entire coal conveyor line, except for the spark detector 12 at the starting end fixed at the corresponding position on the upper side of the positioning plate 41, all other spark detectors 12 are installed on the second connecting column 443 in the fixing component 44, and the whole is installed on the conveyor belt 32 through the sliding component 43, and is limited by the guide channel 42. Under normal circumstances, it is fixed at the preset position of the positioning plate 41 by the locking component 45. When the previous spark detector 12 detects sparks at the corresponding position of the coal conveyor line, the coal conveyor line does not need to stop and continues to move to the right. The spark risk source on the conveyor belt moves toward the position of the next spark detector 12. The spark detector 12 is automatically released by the locking assembly 45 and can move. The other spark detectors 12 remain stationary, and the right locking plate 52 is docked with the positioning plate 51, so that the conveyor belt 32 can move to the left, so that the conveyor belt 32 drives the slide 431 under the spark detector 12 after the limit is released to move to the left, and drives the spark detector 12 to move from right to left along the guide channel 42. During the movement of the spark detector 12, if the spark detector 12 detects sparks again, it will immediately alarm. If no sparks are detected, it means that the risk of the road section has been eliminated. Then the right locking plate 52 and the positioning plate 51 are separated, and the left locking plate 52 and the positioning plate 51 are docked. The conveyor belt 32 resets the spark detector 12 and locks it on the positioning plate 41 again through the locking assembly 45 to wait for the next work. The installation distance between two adjacent spark detectors 12 can be appropriately extended, and they can quickly approach each other to further investigate the risk after a risk occurs, thereby saving equipment investment costs while ensuring the accuracy and efficiency of the spark detectors 12.

[0037] See also Figure 5 A rectangular mounting groove is provided on the upper side of the first connecting column 441, and a rubber sleeve 444 is fixedly provided on the lower end of the second connecting column 443. The rubber sleeve 444 is fixedly provided in the mounting groove. The rubber sleeve 444 is provided between the first connecting column 441 and the second connecting column 443 to reduce the influence of external vibration on the spark detector 12 installed on the second connecting column 443.

[0038] See also Figure 3 , Figure 5 and Figure 6The locking assembly 45 includes a first connecting plate 451 fixedly connected to the outer wall of the first connecting column 441 and having a T-shaped structure. A longer section of the first connecting plate 451 is slidably connected to two front-to-back symmetrical guide rods 452, and a second electromagnet 453 is fixedly provided on the lower side of the longer section of the first connecting plate 451. The lower ends of the two guide rods 452 are commonly fixedly connected to an iron second connecting plate 454. The guide rod 452 is located between the first connecting plate 451 and the second connecting plate 454 and is sleeved with a second spring 455. A plurality of second locking pins 456 linearly distributed front to back are fixedly provided on the lower side of the second connecting plate 454. The upper side of the positioning plate 41 is located on the right side of each guide channel 42 and is provided with a second positioning groove linearly distributed front to back. The lower end of the second locking pin 456 is slidably plugged into the corresponding second positioning groove. The slide 431 is limited by inserting the second locking pin 456 into the corresponding positioning groove. When necessary, the second electromagnet 453 is energized to adsorb the second connecting plate 454, so that the second connecting plate 454 moves up and drives the second locking pin 456 on the lower side to move up and be pulled out of the second positioning groove, so that the limit of the slide 431 is released, so that when the conveyor belt 32 moves, it can drive the slide 431 to move.

[0039] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 Two infrared receivers 7 are fixedly arranged symmetrically on the upper side of the positioning plate 41 near the rear side of each guide channel 42, and an infrared transmitter 8 is fixedly arranged on the outer wall of the first connecting column 441 near the upper side through the third connecting plate. When the slide 431 moves to the left under the drive of the conveyor belt 32 to detect sparks, the infrared transmitter 8 emits infrared rays downward. When the slide 431 moves to the left to the extreme position, the infrared transmitter 8 is aligned with the infrared receiver 7 corresponding to the left side of the guide channel 42, and the conduction signal is transmitted to the external control device, indicating that the spark detector 12 has completed the detection, and then the conveyor belt 32 drives the spark detector 12 to reset in the right reverse direction.

[0040] During specific operation, the entire device is fixedly connected to the conveying frame in the coal conveying device through the fixed frame 1. During operation, each spark detector 12 is fixed on the corresponding fixed component 44, and the fixed component 44 is fixed on the positioning plate 41 through the locking component 45. There is a certain distance between two adjacent spark detectors 12, and the conveyor belt in the coal conveying device carries the coal and continuously passes through the spark detector 12 for detection. When a spark detector 12 detects a spark, the next spark detector 12 moves to the left toward the risk source under the drive of the conveyor belt 32, and the other spark detectors 12 remain stationary, and the risk source will continue to move to the right. The two move towards each other and approach quickly. If the spark detector 12 detects a spark again during this process, an alarm will be immediately sounded. If the spark detector 12 still does not detect a spark after moving to the extreme position to the left, it means that the risk source has disappeared and no emergency measures need to be taken.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A detection fixing device for a spark detector, comprising a fixing frame (1) connected to a coal conveying device, characterized in that: A conveying channel (2) extending along the length direction of the fixed frame (1) is provided on the upper side and near the front side thereof, a conveying mechanism (3) is provided in the conveying channel (2), and a fixing mechanism (4) for positioning the spark detector (12) is provided between the conveying mechanism (3) and the fixed frame (1); The conveying mechanism (3) is provided with two left-right symmetrical driving components (5), the right driving component (5) is connected to a reversing component (6), and the right driving component (5) cooperates with the reversing component (6) to drive the conveying mechanism (3) to move in a direction opposite to the moving direction of the coal conveying line; The fixing mechanism (4) comprises a positioning plate (41) fixedly arranged on a fixing frame (1) by two left-right symmetrical brackets, a surface of the positioning plate (41) is provided with a plurality of guide channels (42) distributed along its length direction and in a strip-shaped structure, a sliding component (43) is arranged between the conveying mechanism (3) and the corresponding guide channel (42), a fixing component (44) for fixing the spark detector (12) is arranged on the sliding component (43), and a locking component (45) is arranged between the fixing component (44) and the positioning plate (41).

2. A detection fixing device for a spark detector according to claim 1, characterized in that: The conveying mechanism (3) comprises two conveying rollers (31) which are rotatably arranged in the conveying channel (2) and are symmetrically distributed on the left and right. A conveying belt (32) is rotatably sleeved between the two conveying rollers (31). The rear ends of the two conveying rollers (31) are respectively connected to corresponding driving assemblies (5).

3. A detection fixing device for a spark detector according to claim 2, characterized in that: Two through holes are provided on the upper side of the fixing frame (1) and near the rear side, and are symmetrical with each other. The driving assembly (5) comprises a positioning plate (51) rotatably arranged in the through hole. The rear end of the conveying roller (31) movably extends into the corresponding through hole and is fixedly connected to the front side of the adjacent positioning plate (51). A locking plate (52) is also rotatably arranged in the through hole. The rear side of the locking plate (52) is rotatably arranged on the rear inner wall of the through hole via a rotating shaft (59). An active cavity (53) is provided inside the locking plate (52). A plurality of locking plates (53) are provided on the front side of the locking plate (52) along its circumference. The movable cavity (53) is provided with sliding holes distributed in the same direction and all of which are connected to the movable cavity (53); a sliding disk (54) made of iron and sliding in the front-rear direction is arranged in the movable cavity (53); a first spring (55) is fixedly arranged between the rear side of the sliding disk (54) and the rear inner wall of the movable cavity (53); a plurality of first locking pins (56) are fixedly arranged on the front side of the sliding disk (54); a first positioning groove (57) is provided on the rear side of the positioning disk (51) at a position opposite to the first positioning pin; and a first electromagnet (58) in a disc structure is fixedly arranged on the front inner wall of the movable cavity (53).

4. A detection fixing device for a spark detector according to claim 3, characterized in that: The rear end of the left rotating shaft (59) is connected to the coal conveying device. The reversing assembly (6) comprises two mutually meshing gears (61), one of the gears (61) is fixedly connected to the right rotating shaft (59), a connecting shaft (62) is rotatably arranged at a position close to the right rotating shaft (59) on the fixed frame (1), and the other gear (61) is fixedly arranged on the connecting shaft (62), and the rear end of the connecting shaft (62) is also connected to the coal conveying device.

5. A detection fixing device for a spark detector according to claim 2, characterized in that: The sliding assembly (43) comprises a sliding seat (431), the portion of the sliding seat (431) close to the lower side is slidably arranged in the conveying channel (2), and a plurality of balls (432) distributed in a matrix are rollingly arranged on the lower side of the sliding seat (431), and the balls (432) are in rolling contact with the conveying belt (32), and guide wheels (433) are rotatably arranged on the front and rear sides of the sliding seat (431) and close to the lower side, and the guide wheels (433) are rollingly connected to the inner wall of the conveying channel (2).

6. A detection fixing device for a spark detector according to claim 1, characterized in that: The fixing assembly (44) comprises a first connecting column (441) in a cylindrical structure fixedly connected to the upper side of the sliding seat (431); a guide ring (442) is rotatably provided on the surface of the first connecting column (441); the guide ring (442) is rotatably connected to the inner wall of the corresponding guide channel (42); a second connecting column (443) is fixedly provided on the upper side of the first connecting column (441); the spark detector (12) located on the far left is fixedly provided on the upper side of the positioning plate (41) and close to the starting end of the coal conveying device; and any spark detector (12) except the spark detector (12) on the far left is fixedly provided in front of the corresponding second connecting column (443) and close to the upper side.

7. A detection fixing device for a spark detector according to claim 6, characterized in that: A mounting groove in a rectangular structure is provided on the upper side of the first connecting column (441), and a rubber sleeve (444) is fixedly sleeved on the lower end of the second connecting column (443), and the rubber sleeve (444) is fixedly arranged in the mounting groove.

8. A detection fixing device for a spark detector according to claim 6, characterized in that: The locking assembly (45) comprises a first connecting plate (451) fixedly connected to the outer wall of the first connecting column (441) and having a T-shaped structure; a longer section of the first connecting plate (451) is slidably connected to two front-to-back symmetrical guide rods (452); a second electromagnet (453) is fixedly arranged on the lower side of the longer section of the first connecting plate (451); the lower ends of the two guide rods (452) are commonly fixedly connected to an iron second connecting plate (454); a second spring (455) is sleeved on the guide rod (452) located between the first connecting plate (451) and the second connecting plate (454); a plurality of second locking pins (456) linearly distributed front to back are fixedly arranged on the lower side of the second connecting plate (454); the upper side of the positioning plate (41) is located on the right side of each guide channel (42) and is provided with a second positioning groove linearly distributed front to back; the lower end of the second locking pin (456) is slidably plugged into the corresponding second positioning groove.

9. A detection fixing device for a spark detector according to claim 6, characterized in that: Two infrared receivers (7) are fixedly arranged symmetrically on the upper side of the positioning plate (41) near the rear side of each guide channel (42), and an infrared transmitter (8) is fixedly arranged on the outer wall of the first connecting column (441) near the upper side via a third connecting plate.

10. A detection fixing device for a spark detector according to claim 1, characterized in that: A plurality of first support rods (9) are fixedly arranged on the lower side of the fixed frame (1) along its length direction, the lower ends of the support rods are threadedly connected to second support rods (10), and the lower ends of the second support rods (10) are rotatably connected to support seats (11) via ball joints.

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