A retractable protective cover on both sides of the track of a coke oven buffer bin top movable discharging vehicle

Abstract

The utility model discloses a kind of telescopic protective cover of coking buffer bin top moving unloading car track both sides, relate to the field of coking plant, including unloading car and the protective cover connected, the wheel below of unloading car is provided with track, protective cover is wrapped outside track, protective cover is composed of large steel plate, small steel plate and several telescopic steel plates, large steel plate is connected with unloading car, small steel plate is fixedly installed at the end of track, several telescopic steel plates are slidably connected and gradually smaller, large steel plate and small steel plate are slidably connected with the largest telescopic steel plate and the smallest telescopic steel plate respectively, dustproof assembly is arranged on the above of track below protective cover for blocking dust in bin adhere to steel plate, dustproof assembly below is provided with sweep ash component.This application replaces protective cover by original covering belt, while avoiding dust in bin to pollute environment, it is separated from unloading car, greatly save the time of overhaul.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of coking plants, in particular to a telescopic protective cover on both sides of the track of a top-moving unloading vehicle of a coking buffer bin. BACKGROUND

[0002] At present, the feeding device of the buffer bin of a coking plant is mostly a belt moving vehicle, but in order to move the material, the buffer bin on both sides of the vehicle and the lower part of the vehicle has a unloading slot, when the vehicle moves to one side of the buffer bin for unloading, the unloading slot on the other side will be open, and dust will be emitted to pollute the environment.

[0003] At present, the coking plant mostly uses a belt that can move with the unloading vehicle for covering, which causes difficulty in maintenance of the moving unloading vehicle, and usually 3 days are needed to remove and install the covering belt for maintenance of the moving unloading vehicle, resulting in waste of time and labor. SUMMARY

[0004] Based on this, the purpose of the present application is to provide a telescopic protective cover on both sides of the track of a top-moving unloading vehicle of a coking buffer bin, so as to solve the technical problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A telescopic protective cover on both sides of the track of a top-moving unloading vehicle of a coking buffer bin, comprising an unloading vehicle and a protective cover connected thereto, wherein a track is arranged below the wheels of the unloading vehicle, the protective cover is wrapped outside the track, the protective cover is composed of a large steel plate, a small steel plate and a plurality of telescopic steel plates, the large steel plate is connected to the unloading vehicle, the small steel plate is fixedly installed at the end of the track, the plurality of telescopic steel plates are connected to each other and gradually become smaller, the large steel plate and the small steel plate are respectively connected to the largest telescopic steel plate and the smallest telescopic steel plate, a dustproof assembly is arranged below the protective cover and above the track for blocking dust in the bin from adhering to the steel plate, and a dust sweeping assembly is arranged below the dustproof assembly.

[0007] In this specific technical scheme, a through opening is formed below the large steel plate, the small steel plate and the plurality of telescopic steel plates, and a moving wheel is installed at the corresponding position of the track inside the through opening, the plurality of moving wheels are in rolling connection with the track, a fixed plate is welded to the outer wall of the end of the large steel plate away from the telescopic steel plate, the fixed plate is fixedly connected to the unloading vehicle through bolts, and an oil guide assembly is arranged on the protective cover.

[0008] The oil guide assembly includes an oil injection pipe arranged on the upper surface of the large steel plate near the fixed plate, a plurality of oil storage grooves are arranged on one side of the upper surface of the plurality of telescopic steel plates and the small steel plate, a plurality of felt rollers are arranged in the plurality of oil storage grooves, and a conduit is arranged in the inner bottom of the plurality of oil storage grooves and penetrates the wall body.

[0009] The mobile wheel is connected with the connecting plate through the rotating shaft, and the connecting plate is fixedly connected with the connecting block on the side away from the mobile wheel.

[0010] The telescopic pipes are arranged obliquely and are fixedly connected with the inner walls of the large steel plate and the telescopic steel plate at two ends, respectively, the bottom of the oil injection pipe and the bottom of the conduit are connected with the outer wall of the top of one end of the telescopic pipe, respectively, the other end of the telescopic pipe is inserted into the wall body of the telescopic steel plate and the small steel plate and communicates with the oil storage groove, the two ends of the felt roller are rotatably connected with the inner wall of the oil storage groove, and the outer wall of the felt of the felt roller is in contact with the inner top wall of the steel plate.

[0011] The dustproof assembly includes a mounting shell, a winding roller is arranged in the mounting shell, a dust cloth is wound on the outer wall of the winding roller, the end of the dust cloth penetrates out of the mounting shell and is fixedly connected with the inner wall of the large steel plate, the outer wall of one side of the small steel plate is provided with a protective shell, a torsion spring is arranged in the protective shell, one end of the winding roller is connected with a plug shaft, arc-shaped clamping plates are symmetrically arranged on the two sides of the plug shaft, the plug shaft and the two arc-shaped clamping plates penetrate out of the wall bodies of the mounting shell and the small steel plate and are inserted into the protective shell, and the center end of the torsion spring is clamped between the arc-shaped clamping plate and the plug shaft.

[0012] The mounting shell is fixedly arranged on the inner side wall of the small steel plate through bolts, the other end of the winding roller is rotatably connected with the inner wall of the mounting shell, the protective shell is weldedly connected with the outer wall of the small steel plate, the inner cavity of the protective shell is circular, one end of the plug shaft and the two arc-shaped clamping plates is fixedly connected with the winding roller, and the other end of the plug shaft and the two arc-shaped clamping plates is spaced apart from the inner wall of the protective shell by a gap of 3cm.

[0013] The dust removal assembly includes a pull-out plate, an installation plate is arranged on the upper surface of the pull-out plate, a cleaning brush is arranged on the upper surface of the installation plate, slide rods are arranged at the two long sides of the pull-out plate, one end of the pull-out plate penetrates out of the wall body of the small steel plate and is connected with a baffle, a moving plate is arranged at the other end of the pull-out plate in the small steel plate, slide plates are connected with the outer walls of the two sides of the moving plate, and the two slide plates are sleeved on the slide rods and are in sliding connection with the slide rods.

[0014] Specifically, in this technical solution, the pull-out plate is close to the dustproof component and is located below the dustproof cloth set in the dustproof component. The mounting plate is fixed to the pull-out plate by bolts. The brush surface of the cleaning brush is in contact with the lower surface of the dustproof cloth. The baffle is welded to the pull-out plate and is fixedly connected to the outer wall of the small steel plate by bolts. Both ends of the two sliding rods are fixedly connected to the inner wall of the small steel plate.

[0015] Specifically, in this technical solution, a plug is welded to the side of the movable plate near the pull-out plate, and a magnet is fixedly installed at the center of the end face of the plug. The end of the pull-out plate away from the baffle is provided with a groove that matches the plug and an iron sheet is fixedly installed inside. The magnet and the iron sheet are magnetically attracted and connected.

[0016] In summary, the present invention has the following advantages: by replacing the original cover belt with a protective cover, this application can prevent dust from being raised in the warehouse and polluting the environment, while also making it easy to separate it from the unloading vehicle, which greatly saves maintenance time and reduces manpower.

[0017] At the same time, when the protective cover is unfolded, the dustproof cloth will be unfolded. The unfolding of the dustproof cloth will drive the winding roller to rotate. The rotation of the winding roller will tighten the torsion spring through the insert shaft and the arc-shaped clamping plate, so that the dustproof cloth can always be kept taut during the unfolding and retraction of the protective cover, so as to prevent the dust in the warehouse from adhering to the inner top wall of the protective cover and increasing the friction between the layers.

[0018] Furthermore, during the winding of the dustproof cloth, the lower surface of the cloth passes through the cleaning brushes installed in the dust removal component. This causes the attached dust to fall off, ensuring the cleanliness of the dustproof cloth upon winding. The cleaning brushes can also be easily removed and replaced via a pull-out plate. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the present invention;

[0020] Figure 2 This is a bottom view of the protective cover of the present invention;

[0021] Figure 3 This is an enlarged view of point A in the present invention;

[0022] Figure 4 This is a schematic diagram of the oil guiding assembly of the present invention;

[0023] Figure 5 This is a structural diagram of the dust removal component of the present invention;

[0024] Figure 6 This is a schematic diagram of the torsion spring of the present invention.

[0025] BRIEF DESCRIPTION OF DRAWINGS:1, blanking car;2, protective cover;201, large steel plate;2011, fixed plate;202, small steel plate;203, telescopic steel plate;204, moving wheel;2041, connecting block;2042, connecting plate;3, track;4, oil guide assembly;401, oil injection pipe;402, telescopic pipe;403, oil storage groove;4031, guide pipe;404, felt roller;5, dustproof assembly;501, mounting shell;502, winding roller;503, dust cloth;504, insertion shaft;505, arc-shaped clamping plate;506, protective shell;507, torsion spring;6, dust sweeping assembly;601, pull-out plate;602, mounting plate;6021, cleaning brush;603, baffle;604, moving plate;6041, insertion block;6042, magnet;605, sliding plate;606, sliding rod. EMBODIMENT

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] The embodiments of the present application will be described below according to the overall structure of the present application. EMBODIMENT

[0028] The blanking car 1 in the present application is of a prior structure, and the blanking groove between the two tracks 3 is a buffer bin, and the sliding between the protective covers 2 adopts the prior art.

[0029] Please refer to Figures 1-2 A telescopic protective cover on both sides of the track of the top moving blanking car of the coking buffer bin, comprising a blanking car 1 and a protective cover 2 connected thereto, wherein the track 3 is arranged below the wheels of the blanking car 1, the protective cover 2 is wrapped outside the track 3, the protective cover 2 is composed of a large steel plate 201, a small steel plate 202 and a plurality of telescopic steel plates 203, the large steel plate 201 is connected with the blanking car 1, the small steel plate 202 is fixedly installed at the end of the track 3, the plurality of telescopic steel plates 203 are connected with each other and gradually become smaller, the large steel plate 201 and the small steel plate 202 are respectively connected with the largest telescopic steel plate 203 and the smallest telescopic steel plate 203, a dustproof assembly 5 is arranged below the protective cover 2 and above the track 3 for blocking the dust in the bin from adhering to the steel plate, a dust sweeping assembly 6 is arranged below the dustproof assembly 5, the large steel plate 201, the small steel plate 202 and the plurality of telescopic steel plates 203 are provided with through openings below and are respectively provided with moving wheels 204 corresponding to the track 3, the plurality of moving wheels 204 are in rolling connection with the track 3, a fixed plate 2011 is welded to the outer wall of the end of the large steel plate 201 away from the telescopic steel plate 203, and the fixed plate 2011 is fixedly connected with the blanking car 1 by bolts.

[0030] When the coke buffer bin is supplied by the discharging trolley 1, the original covering belt is replaced by the protective cover 2. When the discharging trolley 1 moves along the track 3, the discharging trolley 1 drives the large steel plate 201 and the plurality of telescopic steel plates 203 to expand in sequence through the fixed plate 2011, so that the large steel plate 201 and the plurality of telescopic steel plates 203 cover the discharging groove of the buffer bin, avoiding dust in the bin from being raised to pollute the environment. When the discharging trolley 1 and the buffer bin are internally overhauled, only the connecting bolts between the fixed plate 2011 and the discharging trolley 1 need to be removed, greatly saving the overhaul time. After the protective cover 2 is extended, the dust cloth 503 in the dustproof assembly 5 is expanded to avoid the dust in the bin from adhering to the inner top wall of the protective cover, increasing the friction between the layers.

[0031] Please refer to Figure 1 , Figure 2 and Figure 4 , the protective cover 2 is provided with an oil guide assembly 4, the oil guide assembly 4 comprises an oil injection pipe 401, the oil injection pipe 401 is arranged on the upper surface of the large steel plate 201 near the fixed plate 2011, a plurality of telescopic steel plates 203 and a small steel plate 202 are provided with oil storage grooves 403 on one side of the upper surface, a plurality of oil storage grooves 403 are provided with felt rollers 404 inside, and the inner bottom of a plurality of oil storage grooves 403 is provided with a conduit 4031 penetrating the wall, the inner top of the large steel plate 201 and the plurality of telescopic steel plates 203 is provided with telescopic pipes 402, one side of the moving wheel 204 is connected with a connecting plate 2042 through a rotating shaft, the side away from the moving wheel 204 of the connecting plate 2042 is fixedly provided with a connecting block 2041, the connecting block 2041 is fixedly connected with the inner wall of the steel plate, a plurality of telescopic pipes 402 are obliquely arranged and fixedly connected with the inner wall of the large steel plate 201 and the telescopic steel plate 203 at both ends, the bottom of the oil injection pipe 401 and the bottom of the conduit 4031 are respectively connected with the outer wall of one end of the telescopic pipe 402, the other end of the plurality of telescopic pipes 402 is inserted into the wall of the telescopic steel plate 203 and the small steel plate 202 and communicated with the oil storage groove 403, both ends of the plurality of felt rollers 404 are rotatably connected with the inner wall of the oil storage groove 403, and the outer wall of the felt of the plurality of felt rollers 404 is in contact with the inner top wall of the steel plate.

[0032] After a long time of use, in order to ensure the sliding effect, it is necessary to add lubricating oil regularly. When adding lubricating oil, the staff connects the end of the oil injection pipe 401 with the oil supply device, so that the lubricating oil enters the telescopic pipe 402 below through the oil injection pipe 401. The obliquely arranged telescopic pipe 402 makes it easier for the lubricating oil to enter the connected oil storage groove 403, and then enters the next telescopic pipe 402 and oil storage groove 403 through the connected conduit 4031, so that all the oil storage grooves 403 are filled with lubricating oil. At this time, the movement of the steel plates of the protective cover 2 will drive the felt roller 404 to rotate through friction. The rotating felt roller 404 will smear the adhered lubricating oil on the inner top wall of the steel plate, ensuring the lubricating effect.

[0033] Please refer to Figure 2 , Figure 3 and Figure 6 , the dustproof assembly 5 comprises a mounting shell 501, a winding roller 502 is arranged inside the mounting shell 501, the outer wall of the winding roller 502 is wound with a dustproof cloth 503, the end of the dustproof cloth 503 penetrates out of the mounting shell 501 and is fixedly connected with the inner wall of the large steel plate 201, one side of the outer wall of the small steel plate 202 is provided with a protective shell 506, the protective shell 506 is provided with a torsion spring 507, one end of the winding roller 502 is connected with a plug shaft 504, the plug shaft 504 is symmetrically provided with arc-shaped clamping plates 505 on both sides, the plug shaft 504 and the two arc-shaped clamping plates 505 penetrate out of the mounting shell 501 and the small steel plate 202 wall body and are inserted into the protective shell 506, the center end of the torsion spring 507 is clamped between the arc-shaped clamping plate 505 and the plug shaft 504, the mounting shell 501 is fixedly connected with the inner side wall of the small steel plate 202 through bolts, the other end of the winding roller 502 is rotatably connected with the inner wall of the mounting shell 501, the protective shell 506 is weldedly connected with the outer wall of the small steel plate 202, the inner cavity of the protective shell 506 is circular, one end of the plug shaft 504 and the two arc-shaped clamping plates 505 is fixedly connected with the winding roller 502, and the other end of the plug shaft 504 and the two arc-shaped clamping plates 505 leaves a gap of 3cm with the inner wall of the protective shell 506, and the dustproof cloth 503 is made of a three-proof cloth.

[0034] When the large steel plate 201 in the protective cover 2 moves with the blanking vehicle 1, the large steel plate 201 pulls the connected dustproof cloth 503 to move, the dustproof cloth 503 is driven to rotate by the pulling force, the rotating winding roller 502 drives the connected plug shaft 504 and the two arc-shaped clamping plates 505 to rotate, the rotation of the plug shaft 504 and the arc-shaped clamping plate 505 drives the clamped torsion spring 507 to tighten, and the tightened torsion spring 507 stores energy, at this time, the unfolded dustproof cloth 503 can shield the inner top wall of the protective cover 2, so as to avoid the dust in the warehouse from adhering to the inner top wall of the steel plate, and increase the friction between the layers, when the large steel plate 201 moves reversely (the protective cover 2 shrinks), at this time, the energy storage of the torsion spring 507 is released through the plug shaft 504 and the arc-shaped clamping plate 505 to drive the winding roller 502 to rotate reversely, the reversely rotating winding roller 502 winds the dustproof cloth 503, so that the dustproof cloth 503 always maintains a tensioned state.

[0035] Please refer to Figure 2 and Figure 5The dusting assembly 6 comprises a pull-out plate 601, the upper surface of the pull-out plate 601 is provided with a mounting plate 602, the upper surface of the mounting plate 602 is provided with a cleaning brush 6021, both sides of the pull-out plate 601 are provided with slide rods 606, one end of the pull-out plate 601 is connected with a baffle 603 through a small steel plate 202 wall body, the other end of the pull-out plate 601 is provided with a moving plate 604 in the small steel plate 202, both sides of the moving plate 604 are connected with slide plates 605, both the slide plates 605 are sleeved on the slide rods 606 and are in sliding connection with the slide rods 606, the pull-out plate 601 is close to the dustproof assembly 5, and the pull-out plate 601 is located below the dustproof cloth 503 arranged in the dustproof assembly 5, the mounting plate 602 is fixed with the pull-out plate 601 through bolts, the brush surface of the cleaning brush 6021 is in contact with the lower surface of the dustproof cloth 503, the baffle 603 is welded with the pull-out plate 601, and the baffle 603 is fixedly connected with the outer wall of the small steel plate 202 through bolts, both ends of the two slide rods 606 are fixedly connected with the inner wall of the small steel plate 202, one side of the moving plate 604 close to the pull-out plate 601 is welded with an insertion block 6041, a magnet 6042 is fixedly installed at the center of the end face of the insertion block 6041, a recess matched with the insertion block 6041 is formed in the end of the pull-out plate 601 away from the baffle 603, and an iron sheet is fixedly installed in the recess, and the magnet 6042 and the iron sheet are in magnetic attraction connection.

[0036] When the dustproof cloth 503 is unfolded and retracted, the lower surface thereof passes through the cleaning brush 6021, especially in the process of retraction of the dustproof cloth 503, the cleaning brush 6021 can perform dusting treatment on the passing dustproof cloth 503, so that the adhered dust falls, the cleaning of the dustproof cloth 503 when being retracted is ensured, and when the cleaning brush 6021 needs to be replaced after long-time use, the staff can remove the bolts to cancel the fixing of the baffle 603 with the outer wall of the small steel plate 202, then pull the baffle 603 to drive the pull-out plate 601 to move out of the small steel plate 202, the pull-out plate 601 moves to drive the mounting plate 602 and the moving plate 604 connected through magnetic attraction to move, the moving plate 604 drives the slide plates 605 to move along the slide rods 606 until the slide plates 605 are in contact with the inner wall of the small steel plate 202, at this time, the pull-out plate 601 is pulled out of the small steel plate 202, the bolts connecting the mounting plate 602 and the pull-out plate 601 are removed, the cleaning brush 6021 is disassembled, the new cleaning brush 6021 is fixed on the pull-out plate 601 again, the recess of the pull-out plate 601 is aligned with the insertion block 6041, the iron sheet is attracted by the magnet 6042, and then the whole is pushed into the small steel plate 202, the moving plate 604 is moved to reset, until the baffle 603 is in contact with the outer wall of the small steel plate 202 and is fixed by bolts, so that the replacement is completed to ensure the dusting effect.

[0037] The working principle of the application is:

[0038] When the down feeder 1 supplies the coking buffer bin, the down feeder 1 moves along the track 3, the down feeder 1 drives the large steel plate 201 and the plurality of telescopic steel plates 203 to be unfolded in sequence through the fixed plate 2011, so that the large steel plate 201 and the plurality of telescopic steel plates 203 are elongated to cover the down feeder groove of the buffer bin, when the large steel plate 201 moves with the down feeder 1, the dust cloth 503 in the dustproof assembly 5 is unfolded, the dust cloth 503 is driven by the tension to rotate the winding roller 502, the rotating winding roller 502 drives the connected plug shaft 504 and the two arc-shaped clamping plates 505 to rotate, the rotation of the plug shaft 504 and the arc-shaped clamping plate 505 drives the clamped torsion spring 507 to be tightened, the tightened torsion spring 507 stores energy, at this time, the unfolded dust cloth 503 can shield the inner top wall of the protective cover 2, when the large steel plate 201 moves reversely, at this time, the energy storage of the torsion spring 507 is released through the plug shaft 504 and the arc-shaped clamping plate 505 to drive the winding roller 502 to rotate reversely, the reversely rotating winding roller 502 winds the dust cloth 503, so that the dust cloth 503 always keeps a tensioned state, when the dust cloth 503 is unfolded and shrunk, the lower surface of the dust cloth 503 will pass through the cleaning brush 6021, especially in the process of shrinking the dust cloth 503, the cleaning brush 6021 can sweep the dust on the passing dust cloth 503, so that the dust is fallen.

[0039] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the application, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A telescopic protective cover on both sides of the track of a coke buffer bin top movable blanking car, comprising a blanking car (1) and a connected protective cover (2), characterized in that The lower blanking trolley (1) is provided with a track (3) below the wheels, the protective cover (2) is wrapped outside the track (3), the protective cover (2) is composed of a large steel plate (201), a small steel plate (202) and a plurality of telescopic steel plates (203), the large steel plate (201) is connected with the lower blanking trolley (1), the small steel plate (202) is fixedly installed at the end of the track (3), a plurality of telescopic steel plates (203) are slidably connected with each other and gradually become smaller, the large steel plate (201) and the small steel plate (202) are slidably connected with the largest telescopic steel plate (203) and the smallest telescopic steel plate (203) respectively, a dustproof assembly (5) is arranged above the track (3) below the protective cover (2) to prevent dust in the warehouse from adhering to the steel plate, a dust removal assembly (6) is arranged below the dustproof assembly (5). The dustproof assembly (5) comprises a mounting shell (501), a winding roller (502) is arranged in the mounting shell (501), a dust cloth (503) is wound on the outer wall of the winding roller (502), the end of the dust cloth (503) penetrates through the mounting shell (501) and is fixedly connected with the inner wall of the large steel plate (201), a protective shell (506) is arranged on one side of the outer wall of the small steel plate (202), a torsion spring (507) is arranged in the protective shell (506), one end of the winding roller (502) is connected with a plug shaft (504), arc-shaped clamping plates (505) are symmetrically arranged on the two sides of the plug shaft (504), the plug shaft (504) and the two arc-shaped clamping plates (505) penetrate through the wall bodies of the mounting shell (501) and the small steel plate (202) and are inserted into the protective shell (506), and the center end of the torsion spring (507) is clamped between the arc-shaped clamping plate (505) and the plug shaft (504).

2. A retractable guard for a rail on either side of a coke buffer bin top mobile draw car as defined in claim 1, wherein, Longitudinal openings are formed in the lower parts of the large steel plate (201), the small steel plate (202) and the plurality of telescopic steel plates (203), and moving wheels (204) are arranged in the openings corresponding to the track (3), the moving wheels (204) are in rolling connection with the track (3), a fixing plate (2011) is welded to the outer wall of the end of the large steel plate (201) away from the telescopic steel plate (203), the fixing plate (2011) is fixedly connected with the lower blanking trolley (1) through bolts, and an oil guide assembly (4) is arranged on the protective cover (2).

3. The retractable guard shield of claim 2, wherein, The oil guide assembly (4) comprises an oil injection pipe (401), the oil injection pipe (401) is arranged on the upper surface of the large steel plate (201) close to the fixing plate (2011), oil storage grooves (403) are formed in one side of the upper surfaces of the plurality of telescopic steel plates (203) and the small steel plate (202), felt rollers (404) are arranged in the oil storage grooves (403), and conduits (4031) are arranged in the inner bottoms of the oil storage grooves (403), telescopic pipes (402) are arranged on the inner top parts of the large steel plate (201) and the plurality of telescopic steel plates (203).

4. The retractable guard shield of claim 2, wherein, One side of the mobile wheel (204) is connected with a connecting plate (2042) through a rotating shaft, one side of the connecting plate (2042) is fixedly installed with a connecting block (2041), and the connecting block (2041) is fixedly connected with the inner wall of the steel plate.

5. A retractable shield according to claim 3, wherein, The bottom of the oil injection pipe (401) and the bottom of the conduit (4031) are respectively connected with the outer wall of the top of one end of the telescopic pipe (402), the other end of the telescopic pipe (402) is inserted into the wall of the telescopic steel plate (203) and the small steel plate (202) and communicates with the oil storage groove (403), both ends of the felt roller (404) are rotatably connected with the inner wall of the oil storage groove (403), and the outer wall of the felt of the felt roller (404) is in contact with the inner top wall of the steel plate.

6. A retractable shield for the track sides of a coke silo top mobile push car according to claim 1, wherein, The mounting shell (501) is fixedly installed on the inner side wall of the small steel plate (202), the other end of the winding roller (502) is rotatably connected with the inner wall of the mounting shell (501), the protective shell (506) is weldedly connected with the outer wall of the small steel plate (202), the inner cavity of the protective shell (506) is circular, one end of the insertion shaft (504) and the two arc-shaped clamping plates (505) is fixedly connected with the winding roller (502), and the other end of the insertion shaft (504) and the two arc-shaped clamping plates (505) is spaced apart from the inner wall of the protective shell (506) by 3cm.

7. A retractable shield for the track sides of a coke silo top mobile push car according to claim 1, wherein, The dust removal assembly (6) comprises a pull plate (601), the upper surface of the pull plate (601) is provided with a mounting plate (602), the upper surface of the mounting plate (602) is provided with a cleaning brush (6021), both sides of the pull plate (601) are provided with slide rods (606), one end of the pull plate (601) penetrates through the wall of the small steel plate (202) and is connected with a baffle (603), the other end of the pull plate (601) is provided with a moving plate (604) in the small steel plate (202), both sides of the moving plate (604) are connected with slide plates (605), and the two slide plates (605) are sleeved on the slide rods (606) and are in sliding connection with the slide rods (606).

8. A retractable guard for a rail on either side of a coke buffer bin top mobile draw car as defined in claim 7, wherein, The pull plate (601) is close to the dustproof assembly (5), the pull plate (601) is located below the dustproof cloth (503) provided in the dustproof assembly (5), the mounting plate (602) is fixedly connected with the pull plate (601) through bolts, the brush surface of the cleaning brush (6021) is in contact with the lower surface of the dustproof cloth (503), the baffle (603) is weldedly connected with the pull plate (601), and the baffle (603) is fixedly connected with the outer wall of the small steel plate (202) through bolts, and both ends of the two slide rods (606) are fixedly connected with the inner wall of the small steel plate (202).

9. A retractable shield for the track sides of a coke silo top mobile push car according to claim 7, wherein, The mobile plate (604) is welded with an insertion block (6041) on one side close to the pull plate (601), the end face of the insertion block (6041) is fixedly installed with a magnet (6042) at the center, the end of the pull plate (601) away from the baffle (603) is provided with a groove matched with the insertion block (6041) and internally fixedly installed with an iron sheet, and the magnet (6042) and the iron sheet are connected in a magnetic adsorption mode.

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