Mining ball mill with concentrated ore feeding device

Abstract

The invention focuses on the field of ball mills, and innovatively provides a mining ball mill with a concentrated ore feeding device. The device structurally comprises two supporting brackets which are stably fixed to the upper end face of a bottom frame and provide stable supporting for the whole device; the cylinder body is flexibly rotated at the upper ends of the two supporting brackets and is a core working part; the driving part is precisely fixed on the upper end surface of the front end of the bottom frame, is tightly connected with the barrel body and provides power for the rotation of the barrel body; the feeding hopper is firmly connected to the upper end face of the rear end of the bottom frame and bears the emphasis of precise feeding; the feeding transmission assembly is stably arranged on the upper end face of the feeding hopper, and it is guaranteed that the feeding process is smooth. The side frame is firmly fixed to the right end face of the bottom frame and provides additional support for other assemblies. Especially, aiming at the difficult installation problem of the existing ball mill barrel lining plate, the complex operation and low efficiency caused by the fact that a worker needs to drill into a barrel to fix the lining plates one by one by bolts in a traditional mode, the invention finds another way, through the ingenious design, the installation and subsequent replacement process of the lining plates is greatly facilitated, the overall working efficiency is practically improved, and the labor intensity of workers is reduced. And a foundation is built for efficient operation of the mining ball mill.

Description

Technical Field

[0001] The invention relates to the technical field of ball mills, in particular to a mining ball mill with a concentrated ore feeding device. Background Art

[0002] In today's industrial production field, ball mills, as a widely used high-fine grinding machine, play a pivotal role. Its core function is to efficiently crush and finely grind various materials to meet diverse production needs. The main support for the ball mill to achieve this key function is the grinding media loaded in the cylinder, such as common steel balls or ceramic balls. During the operation of the cylinder, they are thrown up vigorously with the help of centrifugal force, and then thrown out rapidly along the axis of the cylinder. With strong impact force and continuous grinding action, the material is gradually refined to the required particle size.

[0003] At the same time, the feeding device, as the "logistical support" for the stable operation of the ball mill, shoulders the important task of accurate and continuous feeding, ensuring that the material can continuously enter the ball mill and fully contact with the grinding medium, thereby ensuring the smooth progress of the entire crushing and grinding process.

[0004] However, looking at the structural details of the existing ball mills, it is not difficult to find that some problems exist that need to be solved urgently. Take the cylinder as an example. In order to prevent the cylinder from excessive wear of materials during long-term high-intensity operation, a liner is usually installed inside it as a protective barrier. However, in actual operation scenarios, the installation of the liner has become a major difficulty. The traditional installation mode requires workers to personally enter the narrow space inside the cylinder, hold bolt tools, and tighten the liners into place one by one. This operation process not only consumes a lot of manpower and time, and the steps are cumbersome and complicated, but also greatly reduces the overall work efficiency, becoming a major "bottleneck" that hinders the efficient operation of the ball mill. Innovative solutions are urgently needed to break this deadlock. Summary of the invention

[0005] The present invention provides a mining ball mill with a concentrated ore feeding device, which specifically includes: a base frame, a supporting bracket, a cylinder, a driving component, a feeding hopper, a feeding transmission assembly, a side frame, a mounting mechanism and a detection mechanism; the supporting brackets are provided with two, and the two supporting brackets are fixedly connected to the upper end surface of the base frame; the cylinder is rotatably connected to the upper ends of the two supporting brackets; the driving component is fixedly installed on the upper end surface of the front end of the base frame, and the driving component is fixedly installed on the cylinder; the feeding hopper is fixedly connected to the upper end surface of the rear end of the base frame; the feeding transmission assembly is fixedly installed on the upper end surface of the feeding hopper; the side frame is fixedly connected to the right end surface of the base frame; the mounting mechanism is arranged on the inner side of the cylinder; and the detection mechanism is arranged on the upper end of the side frame. The mounting mechanism comprises: a mounting groove, a lining plate and a fixed slider; there are a plurality of mounting grooves, all of which are opened on the inner side of the cylinder; there are a plurality of lining plates, all of which are slidably connected to the inner side of the cylinder; there are a plurality of fixed sliders, all of which are fixedly connected to the outer sides of the lining plates, and all of which are slidably connected to the inner sides of the mounting grooves.

[0006] Furthermore, the installation mechanism also includes: an assembly plate and an assembly spring; the assembly plate is provided with multiple groups, and the multiple groups of assembly plates are respectively slidably connected to the inner sides of multiple lining plates; the assembly spring is provided with multiple groups, and the multiple groups of assembly springs are respectively fixedly connected to the inner sides of multiple groups of assembly plates. The installation mechanism also includes: an inclined groove, a pressing block and a fastening pin; the inclined groove is provided with multiple groups, and the multiple groups of inclined grooves are respectively opened on the inner sides of multiple groups of assembly plates; the pressing block is provided with multiple groups, and the multiple groups of pressing blocks are respectively slidably connected to the inner sides of multiple lining plates; the fastening pin is provided with multiple groups, and the multiple groups of fastening pins are respectively fixedly connected to the lower end surfaces of the multiple groups of pressing blocks, and the multiple groups of fastening pins are respectively slidably connected to the inner sides of the multiple groups of inclined grooves.

[0007] Furthermore, the detection mechanism includes: a fastening ring and a driving gear; the fastening ring is fixedly connected to the outer side of the cylinder; the driving gear is rotatably connected to the upper end of the side frame, and the driving gear is meshed with the fastening ring. The detection mechanism also includes: a fixed gear and a connecting gear; the fixed gear is rotatably connected to the upper end of the side frame, and the fixed gear is fixedly connected to the driving gear; the connecting gear is rotatably connected to the upper end of the side frame, and the connecting gear is meshed with the fixed gear.

[0008] Furthermore, the detection mechanism also includes: a fixed shell, a rotating disk, a sliding block and a tension spring; the fixed shell is fixedly connected to the upper end surface of the side frame; the rotating disk is rotatably connected to the inner side of the fixed shell, and the rotating disk is fixedly connected to the connecting gear; there are two sliding blocks, both of which are slidably connected to the inner side of the rotating disk; there are two tension springs, one end of the two tension springs is respectively fixedly connected to the outer side of the two sliding blocks, and the other end of the two tension springs is fixedly connected to the inner side of the rotating disk. The detection mechanism also includes: a pressing slider, a sliding ring, a fixed shaft and a reset spring; the pressing slider is provided with two groups, both of which are slidably connected to the inner side of the rotating disk; there are two sliding rings, both of which are slidably connected to the inner side of the fixed shell; there are two fixed shafts, both of which are fixedly connected to the outer sides of the two sliding rings; there are two reset springs, one end of the two reset springs is respectively fixedly connected to the outer sides of the two sliding rings, and the other end of the two reset springs is fixedly connected to the inner side of the fixed shell.

[0009] Furthermore, the detection mechanism also includes: a warning signal light, a fixed bracket and a push switch; the warning signal lights are provided with two, the two warning signal lights are fixedly installed with each other, the two warning signal lights are installed on the upper end surface of the fixed shell, and the two warning signal lights are electrically connected to the power supply; the fixed brackets are provided with two, the two fixed brackets are fixedly connected to the outside of the fixed shell; the push switches are provided with two, the two push switches are respectively fixedly installed on the inner sides of the two fixed brackets, and the two push switches are respectively electrically connected in the connection lines between the two warning signal lights and the power supply.

[0010] Beneficial Effects

[0011] The present invention realizes the installation and replacement of the lining plate through the setting of the installation mechanism. When the lining plate is installed, the fixed slider can be slidably connected to the inner side of the installation groove, and the assembly plate will slide on the inner side of the installation groove under the action of the assembly spring to limit the lining plate. When a single lining plate needs to be replaced, the pressing block can be pushed inwardly to make the assembly plate slide toward the inner side of the fixed slider under the action of the inclined groove and the fastening pin. At this time, the assembly plate will be separated from the installation groove, and the lining plate can be taken out upward for replacement. The installation is convenient and the work efficiency is improved. When a single lining plate needs to be replaced, the pressing block can be pushed inwardly to make the assembly plate slide toward the inner side of the fixed slider under the action of the inclined groove and the fastening pin. At this time, the assembly plate will be separated from the installation groove, and the lining plate can be taken out upward for replacement. The operation is simple, the work efficiency is improved, and the labor intensity is reduced.

[0012] In addition, the detection of the rotation speed of the cylinder is realized through the setting of the detection mechanism. When the driving component drives the cylinder, the cylinder will drive the fastening ring to rotate. The rotation of the fastening ring will drive the fixed gear to rotate under the action of meshing with the driving gear. Through the meshing of the connecting gear and the fixed gear, the rotation of the fixed gear will drive the rotating disk to rotate. When the rotating disk rotates, the two sliding blocks will slide outward under the action of centrifugal force, so that the sliding blocks will be separated from the pressing sliders and will not contact the two sets of pressing sliders. At this time, it means that the rotation speed of the cylinder is appropriate, and the mineral materials can be ground and crushed to the greatest extent. When the rotation speed of the cylinder is too slow, the rotation speed of the rotating disk will decrease. At the same time, the centrifugal force on the sliding block will decrease. At this time, the sliding block will move forward. The center of the rotating disk slides and presses the pressing slider close to the center of the rotating disk. The pressing slider will press the pressing switch at the lower end through the sliding ring and the fixed shaft. At this time, the warning signal light at the lower end lights up, reminding the staff that the speed is too low. When the cylinder rotates too fast, the centrifugal force on the sliding block will increase. At this time, the sliding block will slide to the outside of the rotating disk, squeezing the pressing slider away from the center of the rotating disk. At this time, the pressing slider will press the pressing switch at the upper end through the sliding ring and the fixed shaft. At this time, the warning signal light at the upper end lights up, reminding the staff that the speed is too high and timely adjustments are made to improve the crushing and grinding efficiency and increase the output. The detection mechanism is a mechanical structure with high strength and not easy to be damaged, which prolongs the service life and reduces the use cost.

[0013] In addition, through the setting of the above-mentioned mechanism, the installation and replacement of the liner is realized. By sliding the fixed slider to the inner side of the installation groove, the assembly plate limits the liner under the action of the assembly spring, which facilitates the installation of the liner, improves work efficiency, reduces labor intensity, and realizes the detection of the cylinder rotation speed. Through the detection of the cylinder rotation speed, the warning signal light sends out a corresponding prompt, so that the staff can adjust the cylinder rotation speed in time, thereby improving the crushing and grinding efficiency and increasing the output. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0015] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a schematic structural diagram of the main body of the first embodiment of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the liner plate of the first embodiment of the present invention.

[0019] Figure 3It is a schematic structural diagram of an assembly plate according to the first embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the split pressing block of the first embodiment of the present invention.

[0021] Figure 5 It is a schematic structural diagram of a driving gear according to a second embodiment of the present invention.

[0022] Figure 6 It is a schematic structural diagram of a cross-section of a fixed shell of the second embodiment of the present invention.

[0023] Figure 7 It is a schematic structural diagram of a sliding ring according to the second embodiment of the present invention.

[0024] Figure 8 The second embodiment of the present invention Figure 1 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0025] Fig. 9 The second embodiment of the present invention Figure 6 Schematic diagram of the structure with a partial enlargement at point B in the middle.

[0026] Reference numerals list

[0027] 1. Base frame; 2. Support bracket; 3. Cylinder; 301. Mounting groove; 4. Driving component; 5. Feed hopper; 6. Feeding transmission assembly; 7. Side frame; 8. Lining plate; 801. Fixed slider; 9. Assembly plate; 901. Inclined groove; 10. Assembly spring; 11. Pressing block; 1101. Fastening pin; 12. Fastening ring; 13. Driving gear; 14. Fixed gear; 15. Connecting gear; 16. Fixed housing; 17. Rotating disk; 18. Sliding block; 19. Tension spring; 20. Pressing slider; 21. Sliding ring; 2101. Fixed shaft; 2102. Reset spring; 22. Warning signal light; 23. Fixed bracket; 24. Press switch. DETAILED DESCRIPTION

[0028] Embodiment 1:

[0029] Please refer to Figure 1-Figure 4 As shown:

[0030] The present invention provides a mining ball mill with a concentrated ore feeding device, comprising a base frame 1, a support bracket 2, a cylinder 3, a driving component 4, a feeding hopper 5, a feeding transmission assembly 6, a side frame 7, a mounting mechanism and a detection mechanism; two supporting brackets 2 are provided, and the two supporting brackets 2 are both fixedly connected to the upper end surface of the base frame 1; the cylinder 3 is rotatably connected to the upper ends of the two supporting brackets 2; the driving component 4 is fixedly installed on the upper end surface of the front end of the base frame 1, and the driving component 4 is fixedly installed with the cylinder 3; the feeding hopper 5 is fixedly connected to the upper end surface of the rear end of the base frame 1; the feeding transmission assembly 6 is fixedly installed on the upper end surface of the feeding hopper 5; the side frame 7 is fixedly connected to the right end surface of the base frame 1; the mounting mechanism is arranged on the inner side of the cylinder 3; and the detection mechanism is arranged on the upper end of the side frame 7.

[0031] The installation mechanism includes: an installation groove 301, a lining plate 8, a fixed slider 801, an assembly plate 9, an inclined groove 901, an assembly spring 10, a pressing block 11 and a fastening pin 1101; there are multiple installation grooves 301, and the multiple installation grooves 301 are all opened on the inner side of the cylinder 3; there are multiple lining plates 8, and the multiple lining plates 8 are all slidably connected to the inner side of the cylinder 3; there are multiple fixed sliders 801, and the multiple fixed sliders 801 are respectively fixedly connected to the outer sides of the multiple lining plates 8, and the multiple fixed sliders 801 are respectively slidably connected to the inner sides of the installation grooves 301; the assembly plate 9 is provided with multiple groups, Multiple groups of assembly plates 9 are slidably connected to the inner sides of multiple lining plates 8 respectively; multiple groups of inclined grooves 901 are provided, and multiple groups of inclined grooves 901 are respectively opened on the inner sides of multiple groups of assembly plates 9; multiple groups of assembly springs 10 are provided, and multiple groups of assembly springs 10 are respectively fixedly connected to the inner sides of multiple groups of assembly plates 9; multiple groups of pressing blocks 11 are provided, and multiple groups of pressing blocks 11 are respectively slidably connected to the inner sides of multiple lining plates 8; multiple groups of fastening pins 1101 are provided, and multiple groups of fastening pins 1101 are respectively fixedly connected to the lower end surfaces of multiple groups of pressing blocks 11, and multiple groups of fastening pins 1101 are respectively slidably connected to the inner sides of multiple groups of inclined grooves 901.

[0032] Specific usage and function of this embodiment: When installing the lining plate 8, the fixed slider 801 can be slidably connected to the inner side of the installation groove 301, and the assembly plate 9 will slide on the inner side of the installation groove 301 under the action of the assembly spring 10 to limit the lining plate 8. When a single lining plate 8 needs to be replaced, the pressing block 11 can be pushed inward to make the assembly plate 9 slide toward the inner side of the fixed slider 801 under the action of the inclined groove 901 and the fastening pin 1101. At this time, the assembly plate 9 will be separated from the installation groove 301, and the lining plate 8 can be taken out upward for replacement.

[0033] Embodiment 2:

[0034] On the basis of the first embodiment, Figure 5-Figure 9As shown, the detection mechanism includes: a fastening ring 12, a driving gear 13, a fixed gear 14, a connecting gear 15, a fixed housing 16, a rotating disk 17, a sliding block 18, a tension spring 19, a pressing slider 20, a sliding ring 21, a fixed shaft 2101, a reset spring 2102, a warning signal light 22, a fixed bracket 23 and a pressing switch 24; the fastening ring 12 is fixedly connected to the outer side of the cylinder 3; the driving gear 13 is rotatably connected to the upper end of the side frame 7, and the driving gear 13 is meshed with the fastening ring 12; the fixed gear 14 is rotatably connected to the upper end of the side frame 7, and the fixed The gear 14 is fixedly connected to the driving gear 13; the connecting gear 15 is rotatably connected to the upper end of the side frame 7, and the connecting gear 15 is meshed with the fixed gear 14; the fixed housing 16 is fixedly connected to the upper end surface of the side frame 7; the rotating disk 17 is rotatably connected to the inner side of the fixed housing 16, and the rotating disk 17 is fixedly connected to the connecting gear 15; there are two sliding blocks 18, and the two sliding blocks 18 are slidably connected to the inner side of the rotating disk 17; there are two tension springs 19, one end of the two tension springs 19 is fixedly connected to the outer sides of the two sliding blocks 18, and the two tension springs 19 The other end is fixedly connected to the inner side of the rotating disk 17; there are two groups of pressing sliders 20, and the two groups of pressing sliders 20 are slidably connected to the inner side of the rotating disk 17; there are two sliding rings 21, and the two sliding rings 21 are slidably connected to the inner side of the fixed shell 16; there are two groups of fixed shafts 2101, and the two groups of fixed shafts 2101 are respectively fixedly connected to the outer sides of the two sliding rings 21; there are two groups of return springs 2102, one end of the two groups of return springs 2102 is respectively fixedly connected to the outer sides of the two sliding rings 21, and the other ends of the two groups of return springs 2102 are fixedly connected On the inner side of the fixed shell 16; there are two warning signal lights 22, the two warning signal lights 22 are fixedly installed with each other, the two warning signal lights 22 are installed on the upper end surface of the fixed shell 16, and the two warning signal lights 22 are electrically connected to the power supply; there are two fixed brackets 23, the two fixed brackets 23 are fixedly connected to the outer side of the fixed shell 16; there are two push switches 24, the two push switches 24 are respectively fixedly installed on the inner sides of the two fixed brackets 23, and the two push switches 24 are respectively electrically connected in the connection lines between the two warning signal lights 22 and the power supply.

[0035] A ball milling method for a mineral concentrate with a feeding device:

[0036] When the driving component 4 drives the cylinder 3, the cylinder 3 will drive the fastening ring 12 to rotate. The rotation of the fastening ring 12 will drive the fixed gear 14 to rotate under the action of meshing with the driving gear 13. Through the meshing of the connecting gear 15 and the fixed gear 14, the rotation of the fixed gear 14 will drive the rotating disk 17 to rotate. When the rotating disk 17 rotates, the two sliding blocks 18 will slide outward under the action of centrifugal force, so that the sliding blocks 18 are separated from the pressing sliders 20 and do not contact the two groups of pressing sliders 20. At this time, it means that the rotation speed of the cylinder 3 is appropriate, and the mineral material can be ground and crushed to the greatest extent. When the rotation speed of the cylinder 3 is too slow, the rotation speed of the rotating disk 17 will decrease, and the centrifugal force on the sliding block 18 will decrease. At this time, the sliding block 18 will slide toward the center of the rotating disk 17 and press the pressing slider 20 close to the center of the rotating disk 17. The pressing slider 20 will press the pressing switch 24 at the lower end through the sliding ring 21 and the fixed shaft 2101. At this time, the warning signal light 22 at the lower end lights up, reminding the staff that the speed is too low. When the cylinder 3 rotates too fast, the centrifugal force on the sliding block 18 will increase. At this time, the sliding block 18 will slide toward the outside of the rotating disk 17, squeezing the pressing slider 20 away from the center of the rotating disk 17. At this time, the pressing slider 20 will press the pressing switch 24 at the upper end through the sliding ring 21 and the fixed shaft 2101. At this time, the warning signal light 22 at the upper end lights up, reminding the staff that the speed is too high and to adjust it in time.

Claims

1. A mining ball mill with a concentrated ore feeding device, comprising a base frame (1), a support bracket (2), a cylinder (3), a driving component (4), a feeding hopper (5), a feeding transmission assembly (6), a side frame (7), a mounting mechanism and a detection mechanism; the support bracket (2) is provided with two, and the two support brackets (2) are fixedly connected to the upper end surface of the base frame (1); the cylinder (3) is rotatably connected to the upper ends of the two support brackets (2); characterized in that: The driving component (4) is fixedly mounted on the upper end surface of the front end of the base frame (1), and the driving component (4) is fixedly mounted on the cylinder (3); the feeding hopper (5) is fixedly connected to the upper end surface of the rear end of the base frame (1); the feeding transmission assembly (6) is fixedly mounted on the upper end surface of the feeding hopper (5); the side frame (7) is fixedly connected to the right end surface of the base frame (1); the mounting mechanism is arranged on the inner side of the cylinder (3); the detection mechanism is arranged on the upper end of the side frame (7); the mounting mechanism comprises: a mounting groove ( 301), a lining plate (8) and a fixed slider (801); a plurality of the mounting grooves (301) are provided, and the plurality of mounting grooves (301) are all opened on the inner side of the cylinder (3); a plurality of the lining plates (8) are provided, and the plurality of lining plates (8) are all slidably connected to the inner side of the cylinder (3); a plurality of the fixed sliders (801) are provided, and the plurality of fixed sliders (801) are respectively fixedly connected to the outer sides of the plurality of lining plates (8), and the plurality of fixed sliders (801) are respectively slidably connected to the inner sides of the mounting grooves (301).

2. A mining ball mill with a concentrated ore feeding device as claimed in claim 1, characterized in that: The mounting mechanism further comprises: an assembly plate (9) and an assembly spring (10); the assembly plate (9) is provided with a plurality of groups, and the plurality of groups of assembly plates (9) are respectively slidably connected to the inner sides of the plurality of lining plates (8); the assembly spring (10) is provided with a plurality of groups, and the plurality of groups of assembly springs (10) are respectively fixedly connected to the inner sides of the plurality of groups of assembly plates (9); the mounting mechanism further comprises: an inclined groove (901), a pressing block (11) and a fastening pin (1101); the inclined groove (90 1) There are multiple groups of inclined grooves (901) respectively opened on the inner sides of multiple assembly plates (9); there are multiple groups of pressing blocks (11) respectively slidably connected to the inner sides of multiple lining plates (8); there are multiple groups of fastening pins (1101) respectively fixedly connected to the lower end surfaces of multiple pressing blocks (11), and multiple groups of fastening pins (1101) respectively slidably connected to the inner sides of multiple groups of inclined grooves (901).

3. A mining ball mill with a concentrated ore feeding device as claimed in claim 1, characterized in that: The detection mechanism comprises: a fastening ring (12) and a driving gear (13); the fastening ring (12) is fixedly connected to the outer side of the cylinder (3); the driving gear (13) is rotatably connected to the upper end of the side frame (7), and the driving gear (13) is meshed with the fastening ring (12); the detection mechanism also comprises: a fixed gear (14) and a connecting gear (15); the fixed gear (14) is rotatably connected to the upper end of the side frame (7), and the fixed gear (14) is fixedly connected to the driving gear (13); the connecting gear (15) is rotatably connected to the upper end of the side frame (7), and the connecting gear (15) is meshed with the fixed gear (14).

4. A mining ball mill with a concentrated ore feeding device as claimed in claim 3, characterized in that: The detection mechanism further comprises: a fixed shell (16), a rotating disk (17), a sliding block (18) and a tension spring (19); the fixed shell (16) is fixedly connected to the upper end surface of the side frame (7); the rotating disk (17) is rotatably connected to the inner side of the fixed shell (16), and the rotating disk (17) is fixedly connected to the connecting gear (15); there are two sliding blocks (18), and both sliding blocks (18) are slidably connected to the inner side of the rotating disk (17); there are two tension springs (19), one end of the two tension springs (19) is respectively fixedly connected to the outer side of the two sliding blocks (18), and the other end of the two tension springs (19) is fixedly connected to the inner side of the rotating disk (17); the detection mechanism further comprises: a pressing slider (20), a sliding ring (21), a fixed shaft (2101) and a reset spring (2102); the pressing slider (20) is provided with two groups, and the two groups of pressing sliders (20) are both slidably connected to the inner side of the rotating disk (17); the sliding ring (21) is provided with two groups, and the two sliding rings (21) are both slidably connected to the inner side of the fixed shell (16); the fixed shaft (2101) is provided with two groups, and the two groups of fixed shafts (2101) are respectively fixedly connected to the outer sides of the two sliding rings (21); the reset spring (2102) is provided with two groups, one end of the two groups of reset springs (2102) is respectively fixedly connected to the outer sides of the two sliding rings (21), and the other end of the two groups of reset springs (2102) is both fixedly connected to the inner side of the fixed shell (16).

5. A mining ball mill with a concentrated ore feeding device as claimed in claim 4, characterized in that: The detection mechanism further comprises: a warning signal light (22), a fixed bracket (23) and a push switch (24); two warning signal lights (22) are provided, the two warning signal lights (22) are fixedly mounted to each other, and the two warning signal lights (22) are mounted on the upper end surface of the fixed housing (16); two fixed brackets (23) are provided, and the two fixed brackets (23) are fixedly connected to the outside of the fixed housing (16); two push switches (24) are provided, and the two push switches (24) are respectively fixedly mounted on the inside of the two fixed brackets (23).

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