Conveyor chute blocking safety device based on mining intrinsic safety type acousto-optic annunciator

Abstract

The invention belongs to the technical field of mining safety devices, and relates to a conveyor chute blockage safety device based on a mining intrinsic safety type acousto-optic annunciator, which comprises a chute, a first square hole is formed in one side surface of the chute, and an anti-blockage mechanism is arranged on the outer side of the first square hole in a butt joint manner; the anti-blocking mechanism comprises a mounting plate, and a second square hole formed in the mounting plate in a penetrating mode communicates with the first square hole in a butt joint mode. The top surface of the upper horizontal part is provided with an acousto-optic annunciator internally provided with an emergency stop switch, the bottom surface of the lower horizontal part is provided with a guide insertion assembly, and the guide insertion assembly is connected in series with vibration motors symmetrically arranged on the side surfaces of the hopper through electric wires II respectively; the inner side of the second square hole is communicated and butted with a short square pipe internally provided with an elastic pushing assembly, the elastic pushing assembly comprises a movable plate axially, elastically and slidably arranged in the short square pipe, a traction block of an isosceles trapezoid structure is suspended on the inner vertical face of the movable plate, and the emergency stop switch and the guide inserting assembly are slidably connected with the waist portion of the traction block through a sliding and pulling assembly; according to the invention, the equipment is effectively prevented from being damaged or broken down due to blockage, and the safety risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of mine safety devices, and in particular relates to a conveyor chute blocking safety device based on a mine intrinsically safe sound and light signal device. Background Art

[0002] The intrinsically safe sound and light signal device for mining is suitable for signal communication and electric control box of belt transport and winch transport in underground explosive gas environment; this product integrates the functions of marking, communication, manual traffic light conversion, manual emergency stop switch and manual control button, which greatly reduces the labor intensity of workers in underground operations.

[0003] The main function of the underground belt conveyor chute is to transport the ore to the designated location, ensure work safety, improve work efficiency, reduce mine dust pollution, and adjust the process flow to make the ore reasonably distributed and avoid overloading. If the belt conveyor chute is blocked during operation, it will lead to decreased production efficiency, damage or even failure of the equipment due to excessive material accumulation, increased safety risks, and even shutdown accidents, and additional maintenance costs, such as stopping production to clean up and repair blockages.

[0004] In the prior art, the above-mentioned mining intrinsically safe sound and light signal device is provided on the chute of the belt conveyor. If the underground operation inspection personnel find that the chute is blocked, they will manually pull the pull rope connected to the emergency stop switch in the sound and light signal device to trigger the emergency stop switch alarm to brake the feeder, thereby quickly cutting off the feeding of the chute. At the same time, the vibration motors on both sides of the chute are manually started to improve the fluidity of the ore and repair the blockage. However, this shutdown method that only relies on manual inspection and manual operation cannot achieve timely shutdown when blockage occurs for the numerous belt conveyor chutes in the mine, which will damage the equipment to a certain extent and pose a safety hazard. Therefore, it is necessary to design a conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device, so that when the chute is blocked, the safety functions of automatically triggering the emergency stop switch and the vibration motor can be realized simultaneously. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a conveyor chute blockage safety device based on a mining intrinsically safe sound and light signal device. The specific technical solution is as follows: The present invention provides a conveyor chute blockage safety device based on a mining intrinsically safe sound and light signal device, comprising a chute formed by a square trough and a hopper connected to each other from top to bottom, a feeder being connected to one side of the top of the square trough, a feeder being provided directly below the bottom of the hopper, a square hole being provided through one side of the square trough, and an anti-blockage mechanism being connected to the outer side of the square hole; The anti-blocking mechanism includes a mounting plate in a "C" shape. The vertical part of the mounting plate is detachably and fixedly attached to the side of the corresponding square material chute, and the square hole II formed through it is connected and docked with the square hole in the same size. On the top surface of the upper horizontal part of the mounting plate, there is an audible and visual signal device with an emergency stop switch inside. The audible and visual signal device is connected to the conveyor by wire I. On the bottom surface of the lower horizontal part of it, there is a guide and plug component. The guide and plug component and the vibration motors symmetrically arranged on the side of the hopper in the forward direction are respectively connected in series by wire II, and the two vibration motors are connected in series in the power supply circuit. A short square pipe is connected and docked in the inner side of the square hole II in a communicating manner. A spring pushing component is arranged in the short square pipe. The spring pushing component includes a movable plate elastically and slidably arranged axially in the short square pipe. In the middle of the inner vertical surface of the movable plate, there is a pulling block in an isosceles trapezoid structure hanging. The emergency stop switch of the audible and visual signal device and the guide and plug component are respectively slidably connected to the waist of the corresponding pulling block through a sliding and pulling component adapted to it. The chute is divided into a dredging state and a blocking state. When in the dredging state, both of the two sliding and pulling components are on the side close to the lower bottom of the pulling block. The audible and visual signal device does not alarm to brake the conveyor, and the guide and plug component does not connect the two wire IIs either. When in the blocking state, the movable plate is laterally extruded by the ore material and synchronously drives the pulling block to move outward horizontally, causing the two sliding and pulling components to slide relatively along the waist of the corresponding pulling block synchronously. The upper sliding and pulling component pulls down the emergency stop switch of the audible and visual signal device to trigger the audible and visual signal device to alarm and brake the conveyor. The lower sliding and pulling component pulls up the guide and plug component to connect the two wire IIs and start the two vibration motors.

[0006] As a preferred technical solution of the present invention, the spring pushing component includes a sealing baffle detachably and fixedly docked with the inner port of the short square pipe. At the four corners between the sealing baffle and the movable plate, there are reset springs vertically and symmetrically connected respectively. When the reset spring is in the natural state, the movable plate fits with the square hole II. In the middle of the inner vertical surface of the movable plate, there is a push rod vertically fixed. The end surface of the push rod is fixedly attached to the upper bottom of the pulling block.

[0007] As a preferred technical solution of the present invention, the sliding and pulling component includes a sliding sleeve slidably sleeved and fitted with a sliding hole formed through the waist of the corresponding pulling block. In the middle of the outer vertical surface of the sliding sleeve, there is a U-shaped seat vertically fixed. A connecting support block is pivotally connected to the U-shaped seat. A pull rod is vertically connected to the connecting support block. The pull rod of the upper sliding and pulling component vertically passes through the upper horizontal part of the mounting plate with a gap and is connected to the emergency stop switch of the audible and visual signal device. The pull rod of the lower sliding and pulling component vertically passes through the lower horizontal part of the mounting plate with a gap and is connected to the guide and plug component.

[0008] As a preferred technical solution of the present invention, the guide plug assembly includes an insulating plug block vertically fixed to the bottom surface of the lower horizontal portion of the mounting plate, and conductive sockets are vertically symmetrically opened inward at both ends of the bottom surface of the insulating plug block, and the two conductive sockets are respectively conductively connected to the corresponding two wires; a conductive support rod is suspended directly below the insulating plug block, and conductive plugs that can be plugged into the corresponding conductive sockets are vertically symmetrically connected at both ends of the conductive support rod, and an insulating ring is fixedly sleeved in the middle of the conductive support rod; the vertical gap of the pull rod of the lower sliding assembly passes through the middle of the insulating plug block and is vertically fixed to the top surface of the insulating ring.

[0009] As a preferred technical solution of the present invention, a stud is integrally and vertically fixedly connected to the middle part of the upper bottom of the pulling block, and the stud is fixedly screwed to a screw hole opened in the middle part of the end face of the push rod.

[0010] As a preferred technical solution of the present invention, the mounting plate is positively snap-fitted with a U-shaped dust shield, the upper and lower edges of the inner side surface of the dust shield are respectively integrated and vertically symmetrically connected with a clamping plate, the inner plane of the clamping plate is provided with a clamping groove along its long side direction, and the clamping groove is horizontally snap-fitted with a corresponding clamping rail arranged on the horizontal part of the mounting plate; the upper and lower ends of the inner end surface of the dust shield are respectively integrated and vertically connected with an extension plate, and the end surface of the extension plate is in contact with the end surface of the horizontal part of the corresponding mounting plate.

[0011] As a preferred technical solution of the present invention, the lower portion of the guide assembly is sleeved with an insulating shield, and the top opening of the insulating shield is fixedly screwed to the bottom of the insulating plug block by bolts adapted thereto.

[0012] As a preferred technical solution of the present invention, the bottom opening of the hopper is connected and docked with a curved material pipe, the bottom opening of the curved material pipe is suspended at intervals above the feeder, and side baffles are symmetrically suspended on the upper belt surface of the feeder on both sides of the bottom opening, and the two side baffles are suspended and connected by a buffer assembly arranged on the frame of the feeder; The buffer assembly includes a support plate horizontally fixed on the frame, a buffer airbag is vertically fixed on the middle of the top surface of the support plate, the top surface of the buffer airbag is gap-bonded with the upper belt surface of the feeder, and clamping grooves are symmetrically fixed on both sides along the center line of the top surface of the support plate, and a telescopic airbag is horizontally clamped in the clamping groove, and the inner end surface of the telescopic airbag is connected with the buffer airbag through an adaptive air pipe, and a flat plate is fixed on the outer end surface of the flat plate, and a straight rod 1 is vertically symmetrically fixed to the end of the outer facade of the flat plate, and the straight rod 1 is slidably connected with a guide support seat 1 vertically fixed on the support plate; two straight rods 2 are fixed to the outer facade of the side baffle at vertical intervals, and the straight rod 2 is slidably connected with a guide support seat 2 vertically fixed on the top surface of the frame, and a U-shaped rod is integrally connected between the end surface of the second straight rod and the end surface of the corresponding straight rod 1; When the buffer airbag is pressurized, part of the high-pressure gas inside it enters the corresponding telescopic airbags through the air pipes on both sides, so as to force the telescopic airbag to expand outward laterally, and synchronously drive the corresponding side baffle to move outward laterally through the flat plate.

[0013] As a preferred technical solution of the present invention, a dust cover is provided at the top of the square trough, the dust cover is open toward the side of the feeder, and the panel on the side away from the feeder is an arc-shaped structure.

[0014] As a preferred technical solution of the present invention, a dot button is arranged on the upper front part of the sound and light signal device, and a work button and a call button are symmetrically arranged on the lower front part thereof.

[0015] The beneficial effects of the present invention are: The safety device of the present invention is connected with the square hole 1 on the side of the square material trough and the square hole 2 on the mounting plate, and the push assembly is arranged in the short square tube. When the ore in the chute is blocked and piled up to the height of the square hole 1, the lateral extrusion force of the ore will push the movable plate to move. This design enables the device to automatically sense the blockage in the chute without manual inspection. Once the movable plate is squeezed and moved, the pulling block moves horizontally, and the emergency stop switch and the guide plug assembly of the sound and light signal device are synchronously triggered by the sliding assembly. This instant response mechanism can quickly cut off the feeding of the chute and start the vibration motor, effectively preventing the blockage from further deteriorating. When a blockage occurs, the emergency stop switch is triggered, the sound and light signal device sounds an alarm and brakes the feeder to ensure safety; through the series connection of the guide plug assembly and the vibration motor, when a blockage occurs, the guide plug assembly is pulled up to connect the two wires, thereby starting the two vibration motors. This design realizes the automatic drainage function when a blockage occurs, improving the safety and efficiency of the equipment; Through the automatic detection and response mechanism, this safety device greatly reduces the number of manual inspections and manual operations, reduces the labor intensity of workers, and the timely shutdown and automatic drainage functions effectively prevent equipment from being damaged or malfunctioning due to blockage, reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure diagram of the sound and light signal device in the present invention is shown; Figure 2 The overall structure diagram of the safety device of the present invention is shown; Figure 3 The overall structural diagram of the anti-blocking mechanism in the present invention is shown; Figure 4 A schematic diagram of the structure of the anti-blocking mechanism of the present invention when the anti-dust shield and the insulating shield are not installed; Figure 5 Shows Figure 4 A magnified view of the structure of the middle A part; Figure 6 Shows Figure 4 A magnified view of the structure of the middle B area; Figure 7 It shows a schematic structural diagram of the safety device of the present invention without the anti-blocking mechanism installed; Figure 8 A schematic diagram of the exploded structure of the mounting plate and the dust cover in the present invention is shown; Fig. 9 It shows a schematic structural diagram of the assembly of the push assembly and the pulling block in the present invention; Fig.10 It shows a schematic diagram of the structure of the decomposed push assembly and the pulling block in the present invention; Fig.11 It shows a structural schematic diagram from another perspective when the anti-blocking mechanism of the present invention is not equipped with a dustproof shield and an insulating shield; Fig.12 A schematic diagram showing the structure of the safety device of the present invention when the dust cover is not installed; Fig.13 A schematic structural diagram of the assembly of the buffer assembly and the side baffle in the present invention is shown.

[0017] As shown in the figure: 1. chute; 11. square trough; 111. square hole 1; 12. hopper; 2. curved material pipe; 3. anti-blocking mechanism; 31. mounting plate; 311. square hole 2; 312. short square tube; 313. rail; 32. push assembly; 321. movable plate; 322. sealing plate; 323. push rod; 3231. screw hole; 324. reset spring; 33. sound and light signal; 331. wire 1; 332. dot button; 333. work button; 334. call button; 34. guide plug assembly; 341. insulating plug block; 3411. conductive plug hole; 342. conductive plug; 343. conductive support rod; 344. insulating ring; 35. vibration electric machine; 351, wire two; 36, pulling block; 361, sliding hole; 362, stud; 37, sliding assembly; 371, sliding sleeve; 372, U-shaped seat; 373, connecting support block; 374, pull rod; 38, dust cover; 381, card plate; 3811, card slot; 382, ​​extension plate; 39, insulation cover; 4, feeder; 5, feeder; 51, side baffle; 52, frame; 6, dust cover; 7, buffer assembly; 71, support plate; 72, buffer airbag; 721, air pipe; 73, card support slot; 731, telescopic airbag; 74, flat plate; 75, straight rod one; 76, guide support seat one; 77, straight rod two; 78, guide support seat two; 79, U-shaped rod. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] Embodiment 1

[0020] To solve the technical problems in the background art, the following conveyor chute blockage safety device based on a mine intrinsically safe sound and light signal device is provided: Combined with Figure 2~Figure 4 and Figure 7 、 Figure 8 、 Fig.12 As shown, the conveyor chute blockage safety device based on a mine intrinsically safe sound and light signal device includes a chute 1 formed by vertically docking a square material tank 11 and a hopper 12. One side of the top opening of the square material tank 11 is docked with a conveyor 4. A feeder 5 is arranged directly below the bottom opening of the hopper 12. A first square hole 111 is formed through one side surface of the square material tank 11, and an anti-blocking mechanism 3 is docked outside the first square hole 111. The anti-blocking mechanism 3 includes a mounting plate 31 in a "C" shape. The vertical part of the mounting plate 31 is detachably and fixedly attached to the corresponding side surface of the square material tank 11, and a second square hole 311 formed through it is connected and docked with the first square hole 111 in the same size. An intrinsically safe sound and light signal device 33 with an emergency stop switch is arranged on the top surface of the upper horizontal part of the mounting plate 31. The sound and light signal device 33 is connected to the conveyor 4 through a first wire 331. A guide insertion component 34 is arranged on the bottom surface of the lower horizontal part of the mounting plate 31. The guide insertion component 34 and vibration motors 35 symmetrically arranged on the side surface of the hopper 12 in the forward direction are respectively connected in series through a second wire 351, and the two vibration motors 35 are connected in series in the power supply circuit. A short square tube 312 is connected and docked inside the second square hole 311 in a communicating manner. A spring pushing component 32 is arranged in the short square tube 312. The spring pushing component 32 includes a movable plate 321 axially elastically slidably arranged in the short square tube 312. A pulling block 36 in an isosceles trapezoid structure is suspended in the middle of the inner vertical surface of the movable plate 321. The emergency stop switch of the sound and light signal device 33 and the guide insertion component 34 are respectively slidably connected to the waist of the corresponding pulling block 36 through a sliding component 37 adapted to it. The chute 1 is divided into a clear state and a blocked state. When in the clear state, the two sliding assemblies 37 are both located on the lower bottom side close to the pulling block 36, the sound and light signal device 33 does not alarm the brake feeder 4, and the guide plug assembly 34 is not connected to the two wires 351; when in the blocked state, the movable plate 321 is squeezed laterally by the ore material and synchronously drives the pulling block 36 to move outward, causing the two sliding assemblies 37 to synchronously slide relative to each other along the waist of the corresponding pulling block 36, and the upper sliding assembly 37 pulls down the emergency stop switch of the sound and light signal device 33 to trigger the sound and light signal device 33 to alarm the brake feeder 4, and the lower sliding assembly 37 pulls up the guide plug assembly 34 to connect the two wires 351 and start the two vibration motors 35.

[0021] By adopting the above technical solution, the safety device connects the square hole 111 opened on the side of the square trough 11 with the square hole 2 311 on the mounting plate, and the push assembly 32 is arranged in the short square tube 312. When the ore in the chute 1 is blocked and piled up to the height of the square hole 111, the lateral extrusion force of the ore will push the movable plate 321 to move. This design enables the device to automatically sense the blockage in the chute 1 without manual inspection; once the movable plate 321 is squeezed and moved, the pulling block 36 moves horizontally, and the emergency stop switch of the sound and light signal device 33 and the guide assembly 34 are synchronously triggered by the sliding assembly 37. This instant response mechanism can quickly cut off the feeding of the chute 1 and start the vibration motor 35, effectively preventing the blockage from further deteriorating; When a blockage occurs, the emergency stop switch is triggered, the sound and light signal device 33 sounds an alarm and brakes the feeder 4 to ensure safety; through the series connection of the guide plug component 34 and the vibration motor 35, when a blockage occurs, the guide plug component 34 is pulled up to connect the two wires 351, thereby starting the two vibration motors 35. This design realizes the automatic drainage function when a blockage occurs, thereby improving the safety and efficiency of the equipment; Through the automatic detection and response mechanism, this safety device greatly reduces the number of manual inspections and manual operations, reduces the labor intensity of workers, and the timely shutdown and automatic drainage functions effectively prevent equipment from being damaged or malfunctioning due to blockage, reducing safety risks.

[0022] Embodiment 2

[0023] Combination Figure 4~Figure 6 as well as Figure 8~Figure 11 As shown, based on the above embodiment, this embodiment further provides the following contents: In this embodiment, if Figure 8 , Fig. 9 and Fig.11As shown, the push assembly 32 includes a sealing plate 322 which is detachably fixedly connected to the inner port of the short square tube 312, and return springs 324 are vertically and symmetrically connected at the four corners between the sealing plate 322 and the movable plate 321, and when the return spring 324 is in a natural state, the movable plate 321 fits with the square hole 2 311; a push rod 323 is vertically fixed to the middle of the inner facade of the movable plate 321, and the end face of the push rod 323 is fixedly connected to the upper bottom of the pulling block 36.

[0024] By adopting the above technical solution, the reset spring 324 in the spring push assembly 32 ensures that the movable plate 321 can be stably fitted in the second square hole 311 when not subject to external force (i.e., ore extrusion), and maintains an initial, undisturbed state. This design ensures that when the chute 1 is in a normal unblocked state, the movable plate 321 and the pulling block 36 thereon will not erroneously trigger the sliding assembly 37, thereby ensuring the normal non-working state of the sound and light signal device 33 and the vibration motor 35, and avoiding unnecessary alarms and vibrations; When the ore material in the chute 1 is blocked and the movable plate 321 is laterally squeezed, the movable plate 321 can move laterally elastically quickly and sensitively. This design allows the emergency stop switch to be triggered and the vibration motor 35 to be started immediately through physical displacement once a blockage occurs, greatly improving the response speed to the blockage and the timeliness of the processing; The push assembly 32 is detachably fixedly docked with the short square tube 312 through the sealing plate 322. This design facilitates the underground workers to regularly inspect and maintain the device, reducing maintenance costs and work difficulty. The return spring 324 and the push rod 323 in the push assembly 32 are designed to withstand the extrusion of mineral materials within a certain range without being damaged, thereby ensuring the stability and reliability of the device during long-term use.

[0025] like Fig.10 As shown, a stud 362 is integrally and vertically fixedly connected to the middle part of the upper bottom of the pulling block 36 , and the stud 362 is fixedly screwed to a screw hole 3231 opened in the middle part of the end surface of the push rod 323 .

[0026] By adopting the above technical solution, the fixed screw connection between the stud 362 and the screw hole 3231 provides a stable and detachable connection between the pulling block 36 and the push rod 323. When assembling the safety device, the staff can easily screw the stud 362 into the screw hole 3231 to complete the connection between the two. Similarly, when maintenance or replacement of parts is required, the pulling block 36 and the push rod 323 can be separated by simply unscrewing the stud 362, thereby facilitating maintenance or replacement work.

[0027] like Figure 4 and Figure 5As shown, the sliding assembly 37 includes a sliding sleeve 371 that is slidably sleeved with a sliding hole 361 that penetrates and is opened along the waist of the corresponding pulling block 36, and a U-shaped seat 372 is vertically fixed to the middle of the outer facade of the sliding sleeve 371, and a connecting support block 373 is connected to the central axis of the U-shaped seat 372, and a pull rod 374 is vertically connected to the connecting support block 373; The pull rod 374 of the upper sliding assembly 37 has a vertical gap passing through the upper horizontal part of the mounting plate 31 and is connected to the emergency stop switch of the sound and light signal device 33; the pull rod 374 of the lower sliding assembly 37 has a vertical gap passing through the lower horizontal part of the mounting plate 31 and is connected to the guide assembly 34.

[0028] By adopting the above technical solution, the sliding assembly 37 is slidably sleeved with the sliding hole 361 of the pulling block 36 through the sliding sleeve 371, ensuring that when the pulling block 36 moves due to the extrusion of the movable plate 321 by the mineral material, the sliding assembly 37 can accurately slide relatively along the waist of the corresponding pulling block 36. This precise sliding connection enables the sliding assembly 37 to accurately trigger or connect the corresponding equipment (such as the emergency stop switch and the vibration motor); When the chute 1 is in a blocked state, the movable plate 321 drives the pulling block 36 to move outward, and the upper sliding assembly 37 pulls down the emergency stop switch through the pull rod 374, triggering the sound and light signal device 33 to alarm and brake the feeder 4; the lower sliding assembly 37 pulls up the guide assembly 34 through the pull rod 374, connects the wire 2 351 and starts the vibration motor 35. This linkage mechanism ensures timely detection and effective response to blockages.

[0029] like Figure 4 and Figure 6 As shown, the guide plug assembly 34 includes an insulating plug block 341 vertically fixed to the bottom surface of the lower horizontal portion of the mounting plate 31, and conductive sockets 3411 are vertically symmetrically opened inward at both ends of the bottom surface of the insulating plug block 341, and the two conductive sockets 3411 are conductively connected to the corresponding two wires 351 respectively; a conductive support rod 343 is suspended directly below the insulating plug block 341, and conductive plug pieces 342 that can be plugged into the corresponding conductive sockets 3411 are vertically symmetrically connected at both ends of the conductive support rod 343, and an insulating ring 344 is fixedly sleeved in the middle of the conductive support rod 343; the pull rod 374 of the lower sliding assembly 37 passes through the middle of the insulating plug block 341 with a vertical gap, and is vertically fixed to the top surface of the insulating ring 344.

[0030] By adopting the above technical solution, the core function of the guide plug component 34 is to automatically connect the circuit to start the vibration motor 35 when the chute 1 is blocked, and automatically disconnect the circuit in the unblocked state. This function is achieved by the cooperation between the conductive support rod 343 and the conductive plugs 342 at both ends and the conductive socket 3411 on the insulating plug block 341; when the chute is blocked and the movable plate 321 moves, the sliding assembly 37 below will pull the conductive support rod 343 up, so that the conductive plug 342 is inserted into the conductive socket 3411, thereby connecting the circuit of the wire 2 351 and the vibration motor 35; on the contrary, in the unblocked state, the conductive support rod 343 descends, the conductive plug 342 is separated from the conductive socket 3411, and the circuit is disconnected; The insulating plug block 341 is vertically fixed to the bottom surface of the lower horizontal part of the mounting plate 31, providing a stable supporting foundation; the plug-in cooperation between the conductive socket 3411 and the conductive plug 342 ensures the reliable connection of the circuit; at the same time, the setting of the insulating ring 344 not only ensures the stable connection between the pull rod 374 and the conductive support rod 343, but also avoids direct contact between the pull rod 374 and the circuit, thereby improving safety.

[0031] Embodiment 3

[0032] Combination Figure 3 and Figure 8 As shown, based on the above embodiment, this embodiment further provides the following contents: In this embodiment, if Figure 3 and Figure 8 As shown, the mounting plate 31 is positively snap-fitted with a U-shaped dust shield 38, and the upper and lower edges of the inner side surface of the dust shield 38 are respectively integrated and vertically symmetrically connected with a clamping plate 381, and a clamping groove 3811 is provided on the inner plane of the clamping plate 381 along its long side direction, and the clamping groove 3811 is horizontally snap-fitted with a clamping rail 313 correspondingly arranged on the horizontal part of the mounting plate 31; the upper and lower ends of the inner end surface of the dust shield 38 are respectively integrated and vertically connected with an extension plate 382, ​​and the end surface of the extension plate 382 is in contact with the end surface of the horizontal part of the corresponding mounting plate 31.

[0033] By adopting the above technical solution, the main function of setting the dust cover 38 is to prevent dust; in the mine environment, dust is ubiquitous, and the dust cover 38 can effectively prevent dust from entering the interior of the anti-blocking mechanism 3, which can reduce mechanical failures caused by dust accumulation and extend the service life of the equipment; at the same time, the dust cover 38 can also provide a certain protection for the internal mechanical parts to prevent damage caused by external factors such as collision and extrusion; The dust cover 38 adopts a U-shaped structure and is connected to the mounting plate 31 through the transverse clamping cooperation of the clamping rail 313 and the clamping groove 3811. This connection mode is both stable and easy to disassemble and install; when the anti-blocking mechanism 3 needs to be maintained or inspected, the dust cover 38 can be easily removed without disassembling the entire safety device; The upper and lower edges of the inner side surface of the dust shield 38 are respectively integrated and vertically symmetrically connected with the card plate 381, the card slot 3811 on the card plate 381 is tightly matched with the card rail 313 on the mounting plate 31, and the upper and lower ends of the inner end surface of the dust shield 38 are respectively integrated and vertically connected with the extension plate 382 that is in contact with the horizontal end surface of the corresponding mounting plate 31. This neither hinders the lateral movement space of the pulling block 36, but also forms a good sealing effect, effectively preventing dust from entering from the gap between the dust shield 38 and the mounting plate 31.

[0034] like Figure 3 As shown, the lower part of the guide assembly 34 is sleeved with an insulating shield 39, and the top of the insulating shield 39 is fixedly screwed to the bottom of the insulating plug 341 through bolts adapted thereto.

[0035] By adopting the above technical solution, the main function of the insulating shield 39 is to provide electrical insulation protection; in special occasions such as mines with explosive gas environments, electrical safety is of vital importance; the insulating shield 39 is sleeved on the lower part of the guide plug assembly 34 and fixedly screwed with the bottom of the insulating plug block 341 to form a closed insulating space, which effectively prevents safety hazards such as electrical short circuit and leakage caused by exposed electrical components; Dust is common in the mine environment, and dust accumulation is one of the important causes of electrical failures and fires. The top opening of the insulating shield 39 is tightly screwed to the bottom of the insulating plug 341, and the bottom is closed, thereby effectively preventing dust from entering the interior of the guide plug assembly 34. The bolted connection between the insulating shield 39 and the insulating plug 341 allows the insulating shield 39 to be easily removed when the guide plug assembly 34 needs to be maintained or replaced without disassembling the entire safety device. This design not only improves maintenance efficiency but also reduces maintenance costs.

[0036] Embodiment 4

[0037] Combination Figure 1 , Figure 2 , Figure 7 and Fig.12 , Fig.13 As shown, based on the above embodiment, this embodiment further provides the following contents: In this embodiment, if Figure 2 , Figure 7 and Fig.12 , Fig.13 As shown, the bottom opening of the hopper 12 is connected and docked with a curved material pipe 2, the bottom opening of the curved material pipe 2 is suspended at intervals above the feeder 5, and side baffles 51 are symmetrically suspended on the upper belt surface of the feeder 5 on both sides of the bottom opening, and the two side baffles 51 are suspended and connected through a buffer assembly 7 arranged on a frame 52 of the feeder 5; The buffer assembly 7 includes a support plate 71 fixed horizontally on the frame 52, a buffer airbag 72 is vertically fixed in the middle of the top surface of the support plate 71, the top surface of the buffer airbag 72 is in gap contact with the upper belt surface of the feeder 5, and two sides thereof are symmetrically fixed with clamping grooves 73 along the center line of the top surface of the support plate 71, and a telescopic airbag 731 is transversely clamped in the clamping groove 73, and the inner end surface of the telescopic airbag 731 is connected to the buffer airbag 72 through a matching air pipe 721. The outer end surface is fixedly fitted with a flat plate 74, and a straight rod 75 is vertically and symmetrically fixed to the end of the outer surface of the flat plate 74, and the straight rod 75 is slidably connected with a guide support seat 76 vertically fixed on the support plate 71; the outer surface of the side baffle 51 is fixedly connected with two straight rods 77 at intervals vertically, and the straight rods 77 are slidably connected with a guide support seat 78 vertically fixed on the top surface of the frame 52, and a U-shaped rod 79 is integrally connected between the end surface of the straight rod 77 and the corresponding end surface of the straight rod 75; When the buffer airbag 72 is pressurized, part of the high-pressure gas inside it enters the corresponding telescopic airbag 731 through the air pipes 721 on both sides, so as to force the telescopic airbag 731 to expand outward laterally, and synchronously drive the corresponding side baffle 51 to move laterally outward through the flat plate 74.

[0038] By adopting the above technical solution, the curved material pipe 2 allows the mineral material falling from the bottom of the hopper 12 to flow to the feeder 5 along a smoother and continuous path. This design reduces the sudden turning or collision of the mineral material during the flow process, thereby reducing the risk of mineral material blockage; by optimizing the flow path of the mineral material, the curved material pipe 2 helps to ensure that the material can smoothly enter the feeder 5, thereby improving the conveying efficiency; The side baffle 51 is suspended above the upper belt surface of the feeder 5, which can effectively prevent the material from overflowing from both sides of the belt during the conveying process, thereby keeping the feeder 5 clean and running efficiently; Driven by the buffer assembly 7, the side baffle 51 can be dynamically adjusted according to the changes in material flow and pressure, ensuring that the material always flows in the central area of ​​the belt, further reducing the risk of blockage and overflow; The buffer airbag 72 is in direct contact with the upper belt surface of the feeder 5, and can absorb the impact energy generated when the material falls, thereby reducing the vibration and noise of the feeder 5; when the material flow rate increases or the material block is large, the buffer airbag 72 is compressed and deformed, and the high-pressure gas is transmitted to the telescopic airbag 731 through the air pipe 721, so that it expands and pushes the side baffle 51 to move outward. This dynamic response mechanism can automatically adjust the position of the side baffle 51 to adapt to different material flows and pressures, thereby reducing the risk of blockage of the chute 1; Through the adjustment function of the buffer assembly 7, the excessive impact and wear of the material on the feeder 5 can be effectively prevented, thereby extending the service life of the feeder 5.

[0039] like Figure 2 and Figure 7 As shown, a dust cover 6 is provided at the top of the square trough 11. The dust cover 6 is open toward the side of the feeder 4, and a panel on the side away from the feeder 4 is an arc-shaped structure.

[0040] By adopting the above technical solution, the main function of setting up the dust cover 6 is to reduce the dust pollution generated during the transportation of the ore. The dust cover 6 is designed to be open on the side facing the feeder 4, allowing the ore to smoothly enter the square trough 11, and the side panel away from the feeder 4 adopts an arc structure. This design can not only reduce the impact angle of the ore and reduce dust generation, but also have a certain guiding effect on the flow of the ore. This design makes the ore enter the square trough 11 more smoothly, reduces the jamming and accumulation of the ore during transportation, and thus improves the transportation efficiency.

[0041] like Figure 1 As shown, the upper front portion of the sound and light signal device 33 is provided with a dot button 332, and the lower front portion thereof is symmetrically provided with a work button 333 and a call button 334.

[0042] By adopting the above technical solution, a dot button 332 is provided on the sound and light signal device 33. Pressing it can send a sound and light signal (dot) to each device connected to the sound and light signal device 33, and can also receive a sound and light signal (dot) sent by any connected device, so that personnel along the underground material transportation line can make corresponding safety operations; A working button 333 is provided on the sound and light signal device 33, so that after the blockage problem of the chute 1 is solved, the emergency stop switch is reset to stop the alarm, and then the working button 333 is manually pressed to restart the feeder 4. This design ensures the safe use and convenient operation of the device; A call button 334 is provided on the sound and light signal device 33, so that the device can connect each device through the power line to realize the power carrier intercom function without changing the power supply and wiring method of the existing sound and light signal device 33, and communicate and convey operation instructions without laying additional cables.

[0043] The working principle and use process of the present invention: When the chute 1 of the present invention is working normally, the ore is fed into the square trough 11 by the feeder 4, slides down the hopper 12, and finally falls into the feeder 5 through the curved material pipe 2; at this time, the anti-blocking mechanism 3 is in a clearing state, the movable plate 321 is close to the second square hole 311 under the action of the reset spring 324, the two sliding components 37 are close to the lower bottom side of the pulling block 36, the sound and light signal device 33 does not alarm, the guide plug component 34 is not connected to the second wire 351, and the vibration motor 35 is in a standby state; When the chute 1 is blocked, when the ore accumulates in the square trough 11 to the height of the square hole 111, the movable plate 321 is squeezed laterally, so that it overcomes the elastic force of the return spring 324 and moves outward; the movement of the movable plate 321 drives the pulling block 36 to move synchronously, and the two sliding components 37 slide relatively along the waist of the pulling block 36; the upper sliding component 37 pulls down the emergency stop switch of the sound and light signal device 33, triggering the alarm and braking the feeder 4, cutting off the supply of ore; the lower sliding component 37 pulls up the guide plug component 34, so that the conductive plug 342 on the conductive support rod 343 is inserted into the conductive socket 3411 of the insulating plug block 341, and the two wires 351 are connected, thereby starting the vibration motor 35; The vibration motor 35 generates vibrations to improve the fluidity of the ore material and help to clear the blockage; at the same time, the dust shield 38 and the insulating shield 39 protect the anti-blocking mechanism 3 and the guide plug assembly 34 from dust and electrical interference respectively; After the blockage is released, the movable plate 321 is reset under the action of the reset spring 324, and the pulling block 36 and the sliding assembly 37 also return to the initial position, the sound and light signal device 33 stops alarming, the vibration motor 35 stops running, and the feeder 4 resumes normal operation by manually pressing the working button 333 on the sound and light signal device 33.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveyor chute blockage safety device based on a mining intrinsically safe sound and light signal device, comprising a chute (1) formed by a square trough (11) and a hopper (12) connected to each other at the top and bottom, a feeder (4) being connected to one side of the top of the square trough (11), and a feeder (5) being provided just below the bottom of the hopper (12), characterized in that: A square hole one (111) is penetrated and opened on one side of the square material tank (11), and an anti-blocking mechanism (3) is对接设置 on the outside of the square hole one (111); The anti-blocking mechanism (3) includes a mounting plate (31) with a "C" - shaped structure. The vertical part of the mounting plate (31) is detachably and fixedly attached to the side surface of the corresponding square material tank (11), and a square hole two (311) penetrated through it is connected and docked with the square hole one (111) in the same size. On the top surface of the upper horizontal part of the mounting plate (31), an audible and visual signal device (33) with an internal emergency stop switch is arranged. The audible and visual signal device (33) is connected to the conveyor (4) through a wire one (331). On the bottom surface of its lower horizontal part, a guide and plug component (34) is arranged. The guide and plug component (34) and the vibration motors (35) symmetrically arranged on the side surface of the hopper (12) in the forward direction are respectively connected in series through a wire two (351), and the two vibration motors (35) are connected in series in the power supply circuit. A short square pipe (312) is connected and docked in a communicating manner inside the square hole two (311). A spring - pushing component (32) is arranged in the short square pipe (312). The spring - pushing component (32) includes a movable plate (321) elastically and slidably arranged axially in the short square pipe (312). In the middle of the inner vertical surface of the movable plate (321), a pulling block (36) with an isosceles trapezoid structure is suspended. The emergency stop switch of the audible and visual signal device (33) and the guide and plug component (34) are respectively slidably connected to the waist of the corresponding pulling block (36) through a sliding component (37) adapted to it; The chute (1) is divided into a dredging state and a blocking state. When in the dredging state, both of the two sliding components (37) are on the side close to the lower bottom of the pulling block (36). The audible and visual signal device (33) does not alarm to brake the conveyor (4), and the guide and plug component (34) does not connect the two wires two (351). When in the blocking state, the movable plate (321) is laterally extruded by the ore material and synchronously drives the pulling block (36) to move outward horizontally, causing the two sliding components (37) to slide relatively synchronously along the waist of the corresponding pulling block (36). The upper sliding component (37) pulls down the emergency stop switch of the audible and visual signal device (33) to trigger the audible and visual signal device (33) to alarm and brake the conveyor (4). The lower sliding component (37) pulls up the guide and plug component (34) to connect the two wires two (351) and start the two vibration motors (35).

2. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 1 is characterized in that: The spring - pushing component (32) includes a sealing baffle (322) detachably and fixedly docked with the inner port of the short square pipe (312). At the four corners between the sealing baffle (322) and the movable plate (321), reset springs (324) are respectively and vertically symmetrically connected. When the reset spring (324) is in the natural state, the movable plate (321) is in contact with the square hole two (311). A push rod (323) is vertically fixed on the middle of the inner vertical surface of the movable plate (321), and the end surface of the push rod (323) is fixedly attached to the upper bottom of the pulling block (36).

3. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 2 is characterized in that: The sliding assembly (37) comprises a sliding sleeve (371) that is slidably sleeved with a sliding hole (361) that is opened along the waist of the corresponding pulling block (36), a U-shaped seat (372) is vertically fixedly connected to the middle of the outer surface of the sliding sleeve (371), a connecting block (373) is connected to the central axis of the U-shaped seat (372), and a pull rod (374) is vertically connected to the connecting block (373); The pull rod (374) of the upper sliding assembly (37) passes through the upper horizontal portion of the mounting plate (31) through a vertical gap and is connected to the emergency stop switch of the sound and light signal device (33); the pull rod (374) of the lower sliding assembly (37) passes through the lower horizontal portion of the mounting plate (31) through a vertical gap and is connected to the guide assembly (34).

4. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 3 is characterized in that: The guide plug assembly (34) includes an insulating plug block (341) vertically fixed to the bottom surface of the lower horizontal part of the mounting plate (31), and conductive sockets (3411) are vertically symmetrically opened inward at both ends of the bottom surface of the insulating plug block (341), and the two conductive sockets (3411) are respectively conductively connected to the corresponding two wires (351); a conductive support rod (343) is suspended directly below the insulating plug block (341), and conductive plugs (342) that can be plugged into the corresponding conductive sockets (3411) are vertically symmetrically connected at both ends of the conductive support rod (343), and an insulating ring (344) is fixedly sleeved in the middle of the conductive support rod (343); the pull rod (374) of the lower sliding assembly (37) passes through the middle of the insulating plug block (341) through a vertical gap, and is vertically fixed to the top surface of the insulating ring (344).

5. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 2 is characterized in that: A stud (362) is integrally and vertically fixedly connected to the middle part of the upper bottom of the pulling block (36), and the stud (362) is fixedly screwed to a screw hole (3231) provided in the middle part of the end surface of the push rod (323).

6. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 3 is characterized in that: The mounting plate (31) is positively snap-fitted with a U-shaped dust shield (38), and the upper and lower edges of the inner side surface of the dust shield (38) are respectively integrated and vertically symmetrically connected with a clamping plate (381), and the inner plane of the clamping plate (381) is provided with a clamping groove (3811) along its long side direction, and the clamping groove (3811) is horizontally snap-fitted with a clamping rail (313) correspondingly arranged on the horizontal part of the mounting plate (31); the upper and lower ends of the inner end surface of the dust shield (38) are respectively integrated and vertically connected with an extension plate (382), and the end surface of the extension plate (382) is in contact with the end surface of the horizontal part of the corresponding mounting plate (31).

7. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 4 is characterized in that: The lower part of the guide plug assembly (34) is sleeved with an insulating shield (39), and the top opening of the insulating shield (39) is fixedly screwed to the bottom of the insulating plug block (341) via bolts adapted thereto.

8. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 1 is characterized in that: The bottom opening of the hopper (12) is connected to a curved material pipe (2), the bottom opening of the curved material pipe (2) is suspended at intervals above the feeder (5), and side baffles (51) are symmetrically suspended on the upper belt surface of the feeder (5) on both sides of the bottom opening, and the two side baffles (51) are suspended and connected through a buffer assembly (7) arranged on a frame (52) of the feeder (5); The buffer assembly (7) comprises a support plate (71) fixedly mounted horizontally on a frame (52), a buffer airbag (72) being vertically fixedly mounted in the middle of the top surface of the support plate (71), the top surface of the buffer airbag (72) being in gap contact with the upper belt surface of the feeder (5), and support grooves (73) being symmetrically fixedly mounted on both sides of the buffer airbag along the center line of the top surface of the support plate (71), a telescopic airbag (731) being laterally engaged in the support groove (73), the inner end surface of the telescopic airbag (731) being connected to the buffer airbag (72) via a matching air pipe (721), and the buffer airbag (72) is connected to the inner end surface of the telescopic airbag (731) via a matching air pipe (721). The outer end surface is fixedly fitted with a flat plate (74), and the end of the outer surface of the flat plate (74) is vertically symmetrically fixed with a straight rod (75), and the straight rod (75) is slidably connected with a guide support seat (76) vertically fixed on the support plate (71); the outer surface of the side baffle (51) is vertically fixed with two straight rods (77) at intervals, and the straight rods (77) are slidably connected with a guide support seat (78) vertically fixed on the top surface of the frame (52), and a U-shaped rod (79) is integrally connected between the end surface of the straight rod (77) and the corresponding end surface of the straight rod (75); When the buffer airbag (72) is pressurized, part of the high-pressure gas inside it enters the corresponding telescopic airbag (731) through the air pipes (721) on both sides, so as to force the telescopic airbag (731) to expand outward laterally, and synchronously drive the corresponding side baffle (51) to move outward laterally through the flat plate (74).

9. The conveyor chute blockage safety device based on the mining intrinsically safe sound and light signal device according to claim 8 is characterized in that: A dust cover (6) is arranged on the top of the square trough (11), and the dust cover (6) is open toward the side of the feeder (4), and the panel on the side away from the feeder (4) is an arc-shaped structure.

10. The conveyor chute blockage safety device based on a mining intrinsically safe sound and light signal device according to any one of claims 1 to 9, characterized in that: The upper front part of the sound and light signal device (33) is provided with a dot button (332), and the lower front part thereof is symmetrically provided with a working button (333) and a call button (334).

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