Scraper slope floating prevention device and scraper

Abstract

The utility model provides a slope floating prevention device of a scraper and the scraper. The slope floating prevention device of the scraper comprises a scraper body, a pushing plate, an ejection part and supporting legs, the first side of the pushing plate is connected with the scraper body, the second side of the pushing plate is provided with an installation structure connected with the hydraulic support, the ejection part is arranged on the second side of the pushing plate, and the movement direction of the ejection end of the ejection part faces the installation foundation; the first end of the supporting leg is rotatably connected with the first side of the pushing plate, and the second end of the supporting leg is connected with the ejection end of the ejection piece. The second end of the supporting leg is located at the hidden position in the passing groove in the pushing plate and is flush with the second side of the pushing plate, and when the supporting leg is located at the working position, the second end of the supporting leg is located at the bottom of the pushing plate. The technical problem that in the prior art, a machine head of a scraper machine is prone to floating is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyors, in particular to a scraper conveyor anti-slope drifting device and a scraper conveyor. Background Art

[0002] In the prior art, during the mining process of the fully mechanized mining face in a coal mine, the head of the scraper conveyor often floats (climbs). If it is not handled in time, the scraper conveyor will continue to climb, resulting in a reduction in mining height or even insufficient height, which in turn prevents the hydraulic support and the scraper conveyor from passing, ultimately leading to a shutdown. The floating (climbing) phenomenon refers to the fact that the power unit of the head is heavy and located on the Laotang side, the center of gravity of the head is biased toward the Laotang side, and the center of gravity of the overall structure is also biased toward the Laotang side during the movement of the scraper conveyor. The thrust of the hydraulic support acts on the bottom in the same direction as the head propulsion, causing the head to continuously float and climb.

[0003] The most commonly used solution at present is to use a single pillar to press the coal shovel board on the coal side of the scraper conveyor head, so that the scraper conveyor head is pressed down, overcoming the upward floating amount of the head, thereby increasing the mining height to ensure the normal passage of the equipment. However, this device has certain disadvantages:

[0004] 1. Personnel are required to enter the coal wall side of the scraper conveyor to work, which poses a safety hazard.

[0005] 2. The recycling of single pillars will lead to production suspension, affecting efficiency and placing excessive labor intensity on staff.

[0006] 3. When the single-pillar press head is used, the single-pillar is usually in an overloaded state due to its heavy load, which makes it have a high damage rate. It may break during transportation, posing a safety hazard.

[0007] Therefore, how to safely and quickly prevent and deal with the problem of machine head drifting without affecting the production of the working surface, reduce the labor intensity of workers, reduce the loss of single pillars, and avoid safety hazards has not yet been proposed and needs to be solved urgently. Utility Model Content

[0008] The main purpose of the utility model is to provide a scraper machine anti-drift slope device and a scraper machine, so as to solve the technical problem that the head of the scraper machine is easy to drift in the prior art.

[0009] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a scraper anti-slope drift device is provided, including: a scraper body, a push plate, and a leg, the first side of the push plate is connected to the scraper body, the second side of the push plate is provided with a mounting structure connected to the hydraulic support, and an ejector is provided on the second side of the push plate, and the movement direction of the ejector end of the ejector is set toward the installation base; the first end of the leg is rotatably connected to the first side of the push plate, and the second end of the leg is connected to the ejector end of the ejector; an over-groove is provided on the push plate, the second end of the leg has a hidden position located in the over-groove, and the second end of the leg has a working position driven by the ejector and passing through the over-groove to abut against the installation base, when the leg is in the hidden position, the second end of the leg is flush with the second side of the push plate, and when the leg is in the working position, the second end of the leg is located at the bottom of the push plate.

[0010] Furthermore, there are multiple push plates, which are spaced apart along the length direction of the scraper body, and each push plate is provided with an ejector on the second side. There are multiple legs, which are arranged one-to-one with the ejectors.

[0011] Furthermore, the push plate is connected to the scraper body through a connecting pin.

[0012] Furthermore, the ejector is a jack, which is connected to the second side of the push plate via a jack seat, and the ejector end of the jack is arranged toward the bottom of the push plate.

[0013] Furthermore, the ejector is a cylinder, which is connected to the second side of the push plate via a cylinder seat, and an ejector end of the cylinder is arranged toward the bottom of the push plate.

[0014] Furthermore, a leg seat is provided on the first side of the push plate, and the first end of the leg is hinged to the leg seat.

[0015] Furthermore, the scraper anti-slope drift device also includes: a sensor and a controller, the sensor is used to detect the angle between the plane where the push plate is located and the installation base; the controller is used to control the ejection displacement of the ejection end of the cylinder according to the angle to adjust the angle.

[0016] Furthermore, the installation base of the device is the ground in the mine tunnel.

[0017] Furthermore, the structures of the through grooves and the supporting legs are adapted to each other, and the arrangement direction of the through grooves is perpendicular to the length direction of the scraper body.

[0018] According to another aspect of the utility model, a scraper machine is provided. The scraper machine includes an anti-drifting slope device, and the anti-drifting slope device is the anti-drifting slope device mentioned above.

[0019] By applying the technical solution of the utility model, an ejector is arranged on the second side of the push plate, and the ejector end of the ejector is connected to the second end of the leg, so that the ejector end of the ejector drives the leg through the slot and abuts against the mounting base during the ejection process. Since the ejector end is restricted by the mounting base and cannot continue to eject, the ejector moves in the opposite direction of the ejector end, thereby driving the second side of the push plate to move away from the mounting base, and the first end of the leg is rotatably connected to the first side of the push plate, so that the second side of the push plate can rotate relative to the first side of the push plate, and finally the purpose of overcoming the head floating of the scraper conveyor by changing the force mode of the push plate through the ejector is achieved. The technical solution of the present application is adopted to solve the technical problem of the head of the scraper conveyor being easy to float in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 A top view of an embodiment of a scraper anti-slope drift device according to the utility model is shown;

[0022] Figure 2 A side view of an embodiment of a scraper anti-slope drift device according to the utility model is shown;

[0023] Figure 3 The AA cross-sectional schematic diagram of an embodiment of the scraper anti-slope drifting device according to the utility model is shown;

[0024] Figure 4 A schematic diagram of the AA section (head raised state) of an embodiment of the scraper anti-slope drift device according to the utility model is shown.

[0025] The above drawings include the following reference numerals:

[0026] 1. Scraper body; 2. Push plate; 3. Ejector; 4. Outrigger; 6. Outrigger seat; 7. Connecting pin; 8. Jack seat; 9. Head frame; 10. Transition slot; 11. Deflection slot; 12. Power unit. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0031] A fully mechanized coal mining face in a coal mine refers to a working face that uses comprehensive mechanized coal mining technology, which can improve coal mining efficiency, reduce labor intensity and improve safety.

[0032] In the fully mechanized mining face, the coal cutter, hydraulic support and scraper conveyor are three key equipment. Their respective functions and working relationships with each other are as follows:

[0033] Coal cutters are the main equipment in coal mining, responsible for cutting and crushing coal seams to achieve coal mining. Coal cutters use rotating cutting heads and knives to penetrate deep into the coal seams and cut off the coal.

[0034] The coal cutter operates under the protection of a hydraulic support, and the cut coal blocks are transported out of the working face through a scraper conveyor.

[0035] Hydraulic Support: Hydraulic support is used to support the roof of the coal mining face to prevent coal seam collapse and ensure the safety of the working face. The hydraulic support provides support force through the hydraulic system, and the support height and strength can be adjusted according to the roof conditions. The hydraulic support moves with the advancement of the coal cutter, providing a stable working environment for the coal cutter and ensuring the safety of the roof during coal mining.

[0036] Scraper Conveyor: Scraper conveyor is responsible for transporting the coal blocks cut by the coal cutter from the working face to the coal bunker or other transportation equipment. Scraper conveyor consists of a series of chains and scrapers. The movement of the chain drives the scrapers to transport the coal blocks. Scraper conveyor works in conjunction with the coal cutter and hydraulic support to transport the cut coal blocks in time and provide space for the further operation of the coal cutter.

[0037] During the working process of the fully mechanized mining face, these three devices usually work together according to the following process:

[0038] Step S1: The coal cutter first cuts the coal seam and breaks the coal blocks.

[0039] Step S2: The hydraulic support supports the roof in front of the coal cutter and is gradually advanced as the coal cutter moves.

[0040] Step S3: The coal blocks cut by the coal cutter fall into the receiving area of ​​the scraper conveyor.

[0041] Step S4: The scraper conveyor transports the coal blocks from the working surface to a designated location to provide space for the coal cutter to continue operating.

[0042] The scraper head structure is a head frame (about 13 tons), which is set on the coal side. The power unit (about 15 tons) is set on the old pond side. Below the head frame and the power unit is the overall plane structure formed by the head pad and the push-connecting plate. Figure 3 The power unit 12) shown is heavy and located on the Laotang side, causing the center of gravity of the machine head to be biased toward the Laotang side. In addition, the machine head pad and the push-connecting plate at the bottom are in an overall flat state, which causes the center of gravity of the overall structure to be biased toward the Laotang side. In addition, the thrust of the hydraulic support on the machine head is exerted on the bottom through the push box, the connecting head, and the push-connecting plate, which is consistent with the propulsion direction of the machine head, ultimately causing the machine head to continuously drift and climb during the propulsion process.

[0043] In order to solve the above problems, a single pillar is often used to press the coal shovel plate on the coal side of the scraper conveyor head, so that the scraper conveyor head is depressed, thereby increasing the mining height and ensuring the normal passage of the equipment.

[0044] The use of a single pillar to press the coal shovel board requires personnel to enter the coal bank side of the scraper conveyor, dig up the floating coal around the coal shovel board, and support the single pillar on the side of the coal shovel board and the top plate close to the coal wall to form a certain angle so that the side of the coal shovel board can be pressed down when the scraper head is pushed.

[0045] This has the following disadvantages:

[0046] 1. Personnel entering the coal wall side of the scraper conveyor to work poses a safety hazard;

[0047] 2. It is necessary to clean the floating coal around the coal shoveling plate, set up single pillars (usually 3-4), push the scraper conveyor head to press down the side of the coal shoveling plate, and then recycle the single pillars, which has the disadvantage of high labor intensity;

[0048] 3. When personnel enter the coal side to set up and recover the single pillar, the scraper conveyor needs to be stopped, resulting in a temporary suspension of production (20-30 minutes each time), affecting the recovery efficiency;

[0049] 4. When the press head is pressed, the damage rate is high due to the heavy load on the single support column in an overloaded state;

[0050] 5. When pushing the scraper conveyor press head, the single support will break, posing a safety hazard of injury.

[0051] Combination Figures 1 to 4 As shown, according to a specific embodiment of the present application, a scraper machine anti-slope drifting device is provided.

[0052] Specifically, the anti-slope drift device of the scraper includes a scraper body 1, a push plate 2, an ejector 3, and a leg 4. The first side of the push plate 2 (i.e., the coal bank side) is connected to the scraper body 1, and the second side of the push plate (i.e., the old pond side) is provided with a mounting structure connected to the hydraulic support, and the second side of the push plate 2 is provided with an ejector 3, and the movement direction of the ejector end of the ejector 3 is arranged toward the mounting base; the first end of the leg 4 is rotatably connected to the first side of the push plate 2, and the second end of the leg 4 is connected to the ejector end of the ejector 3. Specifically, the push plate 2 is provided with a through groove, the second end of the leg 4 has a hidden position located in the through groove, and the second end of the leg 4 has a working position driven by the ejector 3 and abutted through the mounting base of the leg 4, when the leg 4 is in the hidden position, the second end of the leg 4 is flush with the second side of the push plate 2, and when the leg 4 is in the working position, the second end of the leg 4 is located at the bottom of the push plate 2.

[0053] By applying the technical solution of the utility model, an ejector 3 is arranged on the second side of the push plate 2, and the ejection end of the ejector 3 is connected to the second end of the leg 4, so that the ejection end of the ejector drives the leg 4 through the slot and abuts against the mounting base during the ejection process. Since the ejection end is restricted by the mounting base and cannot continue to eject, the ejector 3 will move in the opposite direction of the ejection end, thereby driving the second side of the push plate 2 to move away from the mounting base, and the first end of the leg 4 is rotatably connected to the first side of the push plate 2, so that the second side of the push plate 2 can rotate relative to the first side of the push plate 2, and finally the purpose of overcoming the head floating of the scraper conveyor by changing the force mode of the push plate 2 through the ejector is achieved. The technical solution of the present application is adopted to solve the technical problem that the head of the scraper conveyor is easy to float in the prior art.

[0054] In an embodiment of the present application, the device is located at the second side edge of the push plate 2 corresponding to the machine head (including the transition groove 10 and the deflection groove 11), the first side of the push plate 2 (i.e., the coal seam side) is connected to the scraper machine body 1, and the second side of the push plate (i.e., the old pond side) is provided with a mounting structure connected to the hydraulic support, and an ejector 3 is provided on the second side of the push plate 2. One end of the ejector 3 is fixed to the jack 8 on the second side of the push plate through a connecting pin 7, and the other end is connected to the second end of the leg 4 through a connecting pin 7, and can be retracted and rotated through manual operation; the first end of the leg 4 is connected to the leg seat 6 on the first side of the push plate 2 through the connecting pin 7. Through this device, the operator uses the controller to extend the ejector 3 (a jack) and push the leg 4 to rotate around the front leg seat 6. At this time, the rear end of the leg 4 is pressed down to lift the scraper conveyor head and the second side of the push plate 2, so that the push plate 2 and the bottom of the head frame 9 form a downward inclination angle at the front end (coal shoveling plate side), and the angle can be fixed by the two-way lock of the ejector 3 (the size of the angle can be adjusted through the controller according to the actual situation on site), which changes the force mode of the head, and changes the force mode of the head on the head bottom plate pressure from the original plane force and biased to the second side of the push plate 2 to the front and rear two-point (line) force. This force mode enables the scraper to move down under the action of the gravity component along the second side of the push plate 2 during the propulsion process.

[0055] The downward movement of the second side of the scraper push plate 2 indirectly causes the roller to move downward when the coal mining machine cuts coal, and can cut the bottom plate into a shape where the coal bank side is low and the old pond side is high, which is conducive to the downward movement of the scraper head. This device can adjust the downward movement angle of the scraper head toward the coal shoveling plate side (that is, the coal bank side) by controlling the telescopic range of the ejector 3 through a controller to adapt to changes on site. It is possible for personnel to raise and lower the old pond side of the head by operating the scraper head lifting device, so that the coal shoveling plate side is automatically lowered or lifted under the action of gravity, and the problem of the head floating is prevented and handled safely and quickly without affecting the production of the working face, reducing the labor intensity of workers, reducing the loss of single pillars, and avoiding safety hazards.

[0056] like Figure 1 Specifically, there are multiple push plates 2, which are arranged at intervals along the length direction of the scraper body 1, and ejectors 3 are arranged on the second side of each push plate 2. There are multiple legs 4, and the multiple legs 4 are arranged one-to-one with the multiple ejectors 3. In the technical solution of this embodiment, such an arrangement enables each push plate 2 of the scraper to have the same downward angle toward the coal seam side in the length direction, ensuring the normal operation of the scraper conveyor, and the operator can control the ejection displacement of the ejector, and the multiple ejectors drive the corresponding legs to operate simultaneously.

[0057] Specifically, the push plate 2 is connected to the scraper body 1 through the connecting pin 7. The connecting pin 7 is a connecting piece, usually made of metal, used to fix the push plate 2 to the scraper body 1. The connecting pin 7 usually has a threaded design, which can easily fix the push plate 2 to the scraper body 1, and the position and angle of the push plate 2 can be adjusted by rotating the connecting pin 7. This connection method is simple and reliable, and can ensure a stable connection between the push plate 2 and the scraper body 1, thereby ensuring the normal operation and efficient work of the scraper.

[0058] Specifically, the ejector 3 of this embodiment is a jack, which is connected to the second side of the push plate 2 through a jack seat 8, and the ejection end of the jack is arranged toward the bottom of the push plate 2. A jack is a device that uses the hydraulic principle to transmit force, and the jack is mainly composed of components such as a hydraulic cylinder, a piston, a hydraulic pump, and an oil pipe.

[0059] When in use, place the jack under the object that needs to be lifted or jacked up, such as Figure 4 As shown, the ejector 3 is connected to the second side of the push plate 2. When the operator injects liquid (usually hydraulic oil) into the hydraulic cylinder in the jack, the liquid enters the hydraulic cylinder to push the piston upward; as the piston rises, the liquid is pressurized and transmits force to the object on the piston. The ejector 3 lifts the second side of the push plate 2, and the first side is pushed down accordingly. At this time, the support leg is in the working position. When it is necessary to reduce the force borne by the jack, the drain valve on the hydraulic cylinder is opened, the liquid will flow back to the hydraulic pump, the piston will drop, and the push plate 2 will return to the horizontal state. At this time, the support leg 4 is in the hidden position.

[0060] Specifically, the ejector 3 is a cylinder, which is connected to the second side of the push plate 2 through a cylinder seat, and the ejector end of the cylinder is arranged toward the bottom of the push plate. There is a piston inside the cylinder. When the piston moves downward, the space inside the cylinder is compressed, resulting in an increase in gas pressure. When the piston moves upward, the space inside the cylinder expands and the gas is discharged out of the cylinder. The lifting and falling of the push plate 2 is achieved by controlling the compression and discharge of the gas in the cylinder.

[0061] The moving direction of the extended end of the cylinder is set toward the installation base. When the extended end of the cylinder is pushed downward, the legs corresponding to the extended end and the ejection member 3 are limited by the installation base, and then the cylinder is pushed up in the opposite direction. The cylinder lifts the second side of the push plate 2 away from the installation base through the cylinder seat.

[0062] Specifically, a leg seat 6 is provided on the first side of the push plate 2, and the first end of the leg 4 is hinged to the leg seat 6. The leg seat 6 usually has a fixed leg seat, and the leg 4 has a corresponding connecting component, which can be connected to the leg seat through a hinge or a ball joint. Through the above structure, the second side of the push plate 2 can rotate relative to the first side, thereby changing the spatial posture of the push plate, so that it has a downward angle toward the coal seam side.

[0063] When in use, it is only necessary to insert the connecting component of the leg 4 into the leg seat and then lock the connecting component to complete the hinged connection between the leg and the leg seat.

[0064] Specifically, the anti-slope drift device of the scraper also includes: a sensor, a controller, and a tilt sensor or an inclination sensor can be used to detect the angle between the plane where the push plate 2 is located and the installation base. These sensors can measure the inclination angle of an object relative to the ground and output to display the size of the angle.

[0065] Tilt sensors usually use MEMS technology or capacitive sensors to measure the tilt angle of an object. They can be mounted on the push plate 2 and the angle between the push plate 2 and the horizontal line is measured to determine the angle between the plane where the push plate is located and the mounting base. The output of the sensor can be read and analyzed through a digital display or computer software.

[0066] By monitoring the change of the included angle, the position of the push plate 2 can be adjusted in time to ensure that the included angle between the push plate 2 and the installation base meets the requirements. This can improve the stability and accuracy of the system. The controller mainly controls the ejection displacement of the ejection end by controlling the drive of the jack or cylinder to adjust the included angle.

[0067] Specifically, the installation base is the ground in the mine tunnel. The scraper is mainly used in coal mines to clean coal, dust and other debris on the conveyor belt to keep the conveyor belt clean and running smoothly. It can help improve the production efficiency of coal mines, so the installation position of the scraper should be stable and firm to ensure that the equipment will not shake or move during operation. After the installation is completed, it is necessary to debug and inspect to ensure that the equipment can operate normally, adjust the position and angle of the scraper, and ensure the best cleaning effect.

[0068] Specifically, the structural adaptation arrangement of the slot and the leg 4 can ensure that the ejector 3 can be driven and pass through the leg 4, the leg 4 and the push plate 2 are positioned, and the arrangement direction of the slot is perpendicular to the length direction of the scraper body.

[0069] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0070] 1. By operating the scraper head lifting device to raise or lower the old pond side of the head, the coal shovel plate side is automatically lowered or lifted under the action of gravity, which can safely and quickly prevent and deal with the problem of the head floating up without affecting the production of the working face.

[0071] 2. The use of controllers greatly reduces the labor intensity of workers and reduces the loss of single pillars.

[0072] 3. Prevent people from entering the coal wall side of the scraper conveyor to ensure the personal safety of operators.

[0073] The above-mentioned embodiments can also be used in the technical field of scraper equipment, that is, according to another aspect of the utility model, a scraper is provided, including a scraper anti-drifting slope device, and the scraper anti-drifting slope device is the scraper anti-drifting slope device of the above-mentioned embodiment.

[0074] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0075] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0076] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0077] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for preventing slope drift of a scraper, characterized in that: include: Scraper body (1); A push plate (2), wherein a first side of the push plate (2) is connected to the scraper body (1), a second side of the push plate (2) is provided with a mounting structure connected to a hydraulic support, an ejector (3) is provided on the second side of the push plate (2), and a moving direction of an ejector end of the ejector (3) is arranged toward a mounting base; A support leg (4), wherein a first end of the support leg (4) is rotatably connected to a first side of the push plate (2), and a second end of the support leg (4) is connected to an ejection end of the ejection member (3); The push plate (2) is provided with an over-groove, the second end of the leg (4) has a hidden position located in the over-groove, and the second end of the leg (4) has a working position driven by the ejector (3) and passing through the over-groove to abut against the mounting base. When the leg (4) is located in the hidden position, the second end of the leg (4) is flush with the second side of the push plate (2); when the leg (4) is located in the working position, the second end of the leg (4) is located at the bottom of the push plate (2).

2. The anti-slope drift device for a scraper according to claim 1, characterized in that: There are a plurality of push plates (2), and the plurality of push plates (2) are arranged at intervals along the length direction of the scraper body (1); a ejector (3) is arranged on the second side of each push plate (2); there are a plurality of supporting legs (4), and the plurality of supporting legs (4) are arranged in a one-to-one correspondence with the plurality of ejector members (3).

3. The anti-slope drifting device for a scraper according to claim 2, characterized in that: The push plate (2) is connected to the scraper body (1) via a connecting pin (7).

4. The anti-slope drifting device for a scraper according to claim 1, characterized in that: The ejector (3) is a jack, and the ejector (3) is connected to the second side of the push plate (2) via a jack seat (8), and the ejection end of the jack is arranged toward the bottom of the push plate (2).

5. The anti-slope drifting device for a scraper according to claim 1, characterized in that: The ejector (3) is a cylinder, and the ejector (3) is connected to the second side of the push plate (2) via a cylinder seat, and the ejector end of the cylinder is arranged toward the bottom of the push plate (2).

6. The anti-slope drifting device for a scraper according to claim 1, characterized in that: A leg seat (6) is provided on the first side of the push plate (2), and the first end of the leg (4) is hinged to the leg seat (6).

7. The anti-slope drift device for a scraper according to claim 5, characterized in that: The scraper anti-slope drifting device also includes: A sensor, the sensor being used to detect an angle between a plane where the push plate (2) is located and the installation base; A controller is used to control and adjust the ejection displacement of the ejection end of the cylinder according to the included angle to adjust the included angle.

8. The anti-slope drifting device for a scraper according to claim 1, characterized in that: The installation base is the ground in the mine tunnel.

9. The anti-slope drifting device for a scraper according to claim 1, characterized in that: The through groove is adapted to the structure of the supporting leg (4), and the arrangement direction of the through groove is perpendicular to the length direction of the scraper body (1).

10. A scraper, comprising a scraper anti-slope drift device, characterized in that: The scraper conveyor anti-drifting slope device is the scraper conveyor anti-drifting slope device according to any one of claims 1 to 9.

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