Safety device of conveying elevator

Abstract

The invention relates to the technical field of material lifting, and discloses a safety device of a conveying lifter, which comprises a vertical frame and a base mounted at the bottom end of the vertical frame, a lifting assembly is assembled on the inner side of the vertical frame, a material conveying assembly is arranged on the front side of the vertical frame, and the lifting assembly can pull the material conveying assembly to lift during telescopic movement. An oil supply assembly is assembled at the top end of the vertical frame, the lifting assembly can push and pull the oil supply assembly to conduct oil supplementing or oil spraying operation during telescopic movement, pushing and pressing assemblies which are symmetrically distributed are installed on the left side and the right side of the vertical frame, and protection assemblies which are distributed in a mirror image mode are arranged in the containing cavity of the base. When the lifting assembly moves upwards, the pushing and pressing assembly can be pushed to rotate and press the protection assembly to be gathered inwards, so that a ventilation opening in the top of the base is isolated, and anti-falling protection is constructed. Self-lubrication of the lifting transmission part and safety protection after the cargo box is lifted are achieved, and the reliability of safe operation of equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of material lifting, and more particularly to a safety device for a conveying elevator. Background Art

[0002] A conveyor elevator is a mechanical equipment used to transport materials, goods or people in a vertical or inclined direction. This equipment is usually designed with a fixed track or chain system, and is driven by a motor to achieve smooth rising and falling movements. According to different application scenarios, conveyor elevators can be divided into many types. For example, freight elevators are mainly used for material handling within factories. Conveyor elevators can use motors to drive the steel belt pulleys to rotate, thereby driving the cargo boxes on the steel belt to move up and down along fixed guide rails or chains. The steel belt is usually woven from high-strength steel wire and has a high load-bearing capacity and wear resistance. The lifting and moving steel belt can carry cargo boxes to complete material handling.

[0003] However, in the process of transporting materials, the transmission friction between the steel belt and the steel belt pulley increases significantly due to the influence of the cargo box counterweight. This increase not only aggravates the wear of the steel belt, but also directly shortens its service life. In addition, when the cargo box is lifted to a higher position, if there is a lack of effective fall protection measures, once the steel belt breaks, the cargo box will fall rapidly under the action of gravitational potential energy, which is very likely to cause serious safety accidents. In this case, not only will the cargo be damaged, but it may also pose a threat to the life safety of the operator.

[0004] Therefore, the present invention proposes a safety device for a conveying elevator to achieve self-lubrication of the lifting transmission part and safety protection after the cargo box is lifted, thereby improving the reliability of safe operation of the equipment. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a safety device for a conveyor elevator to solve the problem existing in the above-mentioned background technology of how to achieve self-lubrication of the lifting transmission part and safety protection after the cargo box is lifted to ensure the safe operation of the equipment.

[0006] The present invention provides the following technical solutions: a safety device for a conveying elevator, comprising a stand and a base installed at the bottom thereof, a lifting assembly is installed on the inner side of the stand, and a material transport assembly is arranged on the front side of the stand, the lifting assembly can pull the material transport assembly to lift when telescopically moving, an oil supply assembly is installed on the top of the stand, the lifting assembly can push and pull the oil supply assembly to perform oil replenishment or oil injection when telescopically moving, symmetrically distributed pushing assemblies are installed on the left and right sides of the stand, and a mirror-image distributed protection assembly is arranged in the accommodating cavity of the base, wherein when the lifting assembly moves upward, the pushing assembly can be pushed to rotate and the protection assembly can be pressed inward to aggregate, thereby isolating the vent on the top of the base to construct anti-fall protection; The material transport assembly includes a cargo box, an air guide plate and a waste discharge pipe, wherein the cargo box is slidably arranged on the slide rail of the stand, and an air guide plate is installed in the cargo box on the side close to the lifting assembly, the bottom end of the air guide plate is an opening communicating with the vent, and an air hole is provided above the front inclined plate of the air guide plate, and a waste discharge pipe is provided on the front wall of the cargo box and is aligned with the air hole; The lifting assembly includes a hydraulic rod, a positioning beam, a load-bearing beam, a connecting rod, a pulley, a steel belt, an oil inlet pipe and a T-shaped push rod, wherein the hydraulic rod is fixedly assembled in the lower section of the frame through the positioning beam, and the telescopic end of the hydraulic rod is equipped with a load-bearing beam that moves along the slide rail of the frame, and the left and right sides of the bottom wall of the load-bearing beam are equipped with symmetrically distributed pulleys, and the steel belt passes over the pulleys and is transmission-connected therewith, wherein one end of the steel belt is fixedly connected to the cargo box, and the other end of the steel belt is fixedly connected to the positioning groove of the positioning beam, the oil inlet pipe connects the positioning groove and the recovery groove at the bottom end of the frame, and the rear side of the load-bearing beam is equipped with a connecting rod and a T-shaped push rod; The protection assembly includes a slide seat, an oil collecting bag, a wing plate, a spring, a guide pipe and a check valve, wherein the slide seat is slidably arranged in the accommodating cavity of the stand, the top wall of the slide seat is equipped with an oil collecting bag, the side wall of the slide seat is equipped with a wing plate, the spring is connected between the wing plate and the partition plate of the base, the guide pipe is buried in the top wall of the base and one end is connected to the recovery tank, and the other end is provided with a check valve, and the check valve is connected to the oil collecting bag through a hose; The pushing assembly includes a turning handle, an axle seat and a rocker rod, wherein the turning handle is rotatably connected to one end of the axle seat, and the other end of the axle seat is fixedly connected to the vertical frame. A rocker rod is installed on the outer side of the turning handle, the top end of the rocker rod extends obliquely toward the vertical frame, and the bottom end of the rocker rod is inserted into a slot on the side wall of the sliding seat, and the T-shaped push rod is slidably connected to the rocker rod.

[0007] Furthermore, the oil supply assembly includes an oil storage tank, a jet tube, a piston rod, a discharge one-way valve and a liquid inlet one-way valve, wherein the oil storage tank is fixedly mounted on the top wall of the stand, and symmetrically distributed jet tubes are installed on the left and right sides of the oil storage tank, a piston rod is movably inserted in the jet tube, the bottom end of the rod body of the piston rod is fixedly connected to the load-bearing beam through a connecting rod, and the top end of the jet tube is equipped with a discharge one-way valve and a liquid inlet one-way valve that are unidirectionally connected to its liquid cavity, wherein the discharge one-way valve is connected to the slide rail through a conduit, and the liquid inlet one-way valve is connected to the oil storage tank through a conduit.

[0008] Furthermore, a receiving groove is provided in the bearing beam, and a leakage hole is opened in the bottom wall of the receiving groove. The lubricating oil in the slide rail drips into the receiving groove of the bearing beam, and the lubricating oil drips onto the pulley through the leakage hole in the bottom wall of the receiving groove, thereby lubricating the steel belt that gradually passes through the pulley upward.

[0009] Furthermore, the guide pipe is set at a position at least higher than the oil collecting bag, so that after receiving the lubricating oil from the recovery tank, the guide pipe can, under the action of gravity potential energy, unidirectionally pass through the check valve and the hose and flow into the oil collecting bag without causing the problem of reverse osmosis reflux of the oil in the oil collecting bag.

[0010] Furthermore, the protection component also includes a liquid pump installed on the side wall of the oil collecting bag, and the liquid pump is connected to the oil storage tank through a hose. In addition, a gravity sensor and a pressure sensor are also provided in the slide seat, and a controller is installed on the base.

[0011] Furthermore, the upper and lower layers of the base are respectively a accommodating chamber and a configuration chamber, a vent is provided on the top wall of the accommodating chamber, and a fan is installed in the configuration chamber. When the slide seat is not pressed by the rocker arm, the slide seat returns to the left and right sides of the base under the elastic force of the spring. At this time, the vent is unobstructed, so that the fan can blow air into the air guide plate through the vent.

[0012] Technical effects and advantages of the present invention: The present invention is provided with a lifting assembly, an oil supply assembly, a protection assembly and a pushing assembly, which is beneficial for the telescopic end of the hydraulic rod to drive the load-bearing beam connected thereto to move upward after the loading is completed, and the moving load-bearing beam will drive the steel belt and the cargo box upward by means of the pulley to transport the cargo box loaded with materials, and at the same time, the connecting rod connected to the load-bearing beam pushes the piston rod upward, so that the piston rod gradually retracts into the jet tube, causing the liquid cavity of the jet tube to be pressurized, and the lubricating oil in the liquid cavity is discharged through the discharge one-way valve after being pressurized and introduced into the slide rail and the bearing of the stand through the guide tube. The oil then drips onto the pulley through the leakage hole in the bottom wall of the receiving groove, lubricating the steel belt that gradually passes through the pulley, and the transmission overflowed lubricating oil is collected and processed by the guide pipe, check valve and the connected hose into the oil collecting bag. At the same time, the upward bearing beam can carry the T-shaped push rod to move upward together and gradually push the rocker arm to both sides, so that the bottom ends of the left and right rocker arms can push the slide inward until the slides on both sides carry the oil collecting bags and converge to the vent to form an anti-fall cushion layer, thereby realizing anti-fall protection for the cargo box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention from a front perspective.

[0014] Figure 2 It is a schematic diagram of the overall structure of the present invention from a back view.

[0015] Figure 3 For the present invention Figure 1 Schematic diagram of the structure and its local cross-section.

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle.

[0017] Figure 5 It is a schematic diagram of the connection structure of the stand, lifting assembly, material transport assembly and protection assembly of the present invention.

[0018] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point B in the middle.

[0019] Figure 7 For the present invention Figure 5 Schematic diagram of the structure at point C in the middle.

[0020] Figure 8 It is a schematic diagram of the connection structure of the stand, lifting assembly, material transport assembly, protection assembly and pushing assembly of the present invention.

[0021] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at point D in the middle.

[0022] The reference numerals are: 1, stand; 2, base; 3, lifting assembly; 301, hydraulic rod; 302, positioning beam; 303, bearing beam; 304, connecting rod; 305, pulley; 306, steel belt; 307, oil guide pipe; 308, T-shaped push rod; 4, material transport assembly; 401, cargo box; 402, air guide plate; 403, waste discharge pipe; 5, oil supply assembly; 501, oil storage tank; 50 2. Jet tube; 503. Piston rod; 504. Discharge check valve; 505. Inlet check valve; 6. Protection assembly; 601. Sliding seat; 602. Oil collecting bag; 603. Wing plate; 604. Spring; 605. Guide tube; 606. Check valve; 607. Liquid pump; 7. Push assembly; 701. Turn handle; 702. Shaft seat; 703. Rocker arm; 8. Controller; 9. Fan. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The safety device of a conveyor elevator involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Reference Figure 1-9The present invention provides a safety device for a conveying elevator, including a frame 1 and a base 2 installed at the bottom thereof, a lifting assembly 3 is installed on the inner side of the frame 1, and a material transport assembly 4 is arranged on the front side of the frame 1, the lifting assembly 3 can pull the material transport assembly 4 to lift and lower when telescopically moving to carry out cargo transportation operations, an oil supply assembly 5 is installed on the top of the frame 1, the lifting assembly 3 can push and pull the oil supply assembly 5 to replenish oil or spray oil when telescopically moving, so as to realize automatic oiling and lubrication of transmission parts, symmetrically distributed pushing assemblies 7 are installed on the left and right sides of the frame 1, and a mirror-distributed protection assembly 6 is arranged in the accommodating cavity of the base 2, wherein when the lifting assembly 3 moves upward, the pushing assembly 7 can be pushed to rotate and the protection assembly 6 can be pressed inward to aggregate, thereby isolating the vent at the top of the base 2 to construct anti-fall protection.

[0025] In this embodiment, it should be specifically explained that the upper and lower layers of the base 2 are respectively a receiving chamber and a configuration chamber, a vent is provided on the top wall of the receiving chamber, a fan 9 is installed in the configuration chamber, and when the slide 601 is not pressed by the swing rod 703, the slide 601 is restored to the left and right sides of the base 2 under the elastic force of the spring 604, and the vent is unblocked, so that the fan 9 can blow air into the air guide plate 402 through the vent; The material transport component 4 includes a cargo box 401, an air guide plate 402 and a waste discharge pipe 403, wherein the cargo box 401 is slidably set on the slide rail of the stand 1, and the cargo box 401 close to the lifting component 3 is equipped with an air guide plate 402, the bottom end of the air guide plate 402 is an opening that can communicate with the vent, and an air hole is provided above the front inclined plate of the air guide plate 402, and a waste discharge pipe 403 aligned with the air hole is provided on the front wall of the cargo box 401. The air flows through the air holes on the inclined plate of the air guide plate 402 and is discharged to the side of the waste discharge pipe 403, so that an air curtain is formed at the material inlet of the cargo box 401, so that when the cargo box 401 is loaded, the heavier materials can smoothly pass through the air curtain and fall into the bottom of the cargo box 401, while the light dust and impurities are transported to the waste collecting device by the air flow through the waste discharge pipe 403, so as to realize the separation and impurity removal of the materials.

[0026] Reference Figure 3-9The lifting assembly 3 includes a hydraulic rod 301, a positioning beam 302, a bearing beam 303, a connecting rod 304, a pulley 305, a steel belt 306, an oil guide pipe 307 and a T-shaped push rod 308, wherein the hydraulic rod 301 is fixedly assembled in the lower section of the frame 1 through the positioning beam 302, and the telescopic end of the hydraulic rod 301 is equipped with a bearing beam 303 that can move along the slide rail of the frame 1, and the left and right sides of the bottom wall of the bearing beam 303 are installed with symmetrically distributed pulleys 305, and the steel belt 306 passes over the pulley 305 and is transmission-connected therewith, wherein the steel belt 306 One end of the steel belt 306 is fixedly connected to the cargo box 401, and the other end of the steel belt 306 is fixedly connected to the positioning groove of the positioning beam 302. The oil guide pipe 307 connects the positioning groove and the recovery groove at the bottom end of the stand 1. The rear side of the load-bearing beam 303 is equipped with a connecting rod 304 and a T-shaped push rod 308. The telescopic end of the hydraulic rod 301 can drive the load-bearing beam 303 connected thereto to move upward. The moving load-bearing beam 303 will drive the steel belt 306 and the cargo box 401 upward by means of the pulley 305 to transfer the cargo box 401 loaded with materials; The oil supply assembly 5 comprises an oil storage tank 501, a jet tube 502, a piston rod 503, a discharge check valve 504 and a liquid inlet check valve 505, wherein the oil storage tank 501 is fixedly mounted on the top wall of the stand 1, and symmetrically distributed jet tubes 502 are mounted on the left and right sides of the oil storage tank 501, a piston rod 503 is movably inserted in the jet tube 502, the bottom end of the rod body of the piston rod 503 is fixedly connected to the load-bearing beam 303 through a connecting rod 304, and the top end of the jet tube 502 is equipped with a discharge check valve 504 and a liquid inlet check valve 505 which are in one-way communication with its liquid cavity, wherein the discharge check valve 504 and the liquid inlet check valve 505 are in one-way communication with the liquid cavity of the jet tube 502, wherein the discharge check valve 504 and the liquid inlet check valve 505 are in one-way communication with the liquid cavity of the jet tube 502, and ... The one-way valve 504 is connected to the slide rail through a conduit, and the one-way valve 505 is connected to the oil storage tank 501 through a conduit. When the connecting rod 304 connected to the load beam 303 pushes the piston rod 503 upward, the piston rod 503 gradually retracts into the jet tube 502, causing the liquid cavity of the jet tube 502 to be pressurized. The lubricating oil in the liquid cavity is discharged through the one-way valve 504 after being pressurized and introduced into the receiving groove of the slide rail of the stand 1 and the load beam 303 through the conduit, and then drips onto the pulley 305 through the leakage hole on the bottom wall of the receiving groove, and lubricates the steel belt 306 that gradually passes through the pulley 305; The protection component 6 includes a slide 601, an oil collecting bag 602, a wing plate 603, a spring 604, a guide pipe 605 and a check valve 606, wherein the slide 601 is slidably arranged in the accommodating cavity of the stand 1, the top wall of the slide 601 is equipped with the oil collecting bag 602, the side wall of the slide 601 is equipped with the wing plate 603, the spring 604 is connected between the wing plate 603 and the partition of the base 2, the slide 601 is located on the left and right sides of the base 2 under the elastic force of the spring 604, the guide pipe 605 is buried in the top wall of the base 2 and one end is connected to the recovery tank, and the other end is provided with a check valve 606, the check valve 606 is connected to the oil collecting bag 602 through a hose, and the lubricating oil overflowed from the transmission is collected and processed by the guide pipe 605, the check valve 606 and the hose connected thereto into the oil collecting bag 602; The pushing assembly 7 includes a turning handle 701, an axle seat 702 and a rocker arm 703, wherein the turning handle 701 is rotatably connected to one end of the axle seat 702, and the other end of the axle seat 702 is fixedly connected to the stand 1, and a rocker arm 703 is installed on the outer side of the turning handle 701, the top end of the rocker arm 703 extends obliquely toward the stand 1, and the bottom end of the rocker arm 703 is inserted into the slot on the side wall of the slide 601, the T-shaped push rod 308 is slidably connected to the rocker arm 703, and the upward load-bearing beam 303 can carry the T-shaped push rod 308 to move upward together and gradually push the rocker arm 703 to both sides, so that the bottom ends of the left and right rocker arms 703 can push the slide 601 inward, until the slides 601 on both sides carry the oil collecting bags 602 to converge toward the vent to form an anti-fall cushion layer, thereby realizing anti-fall protection for the cargo box 401.

[0027] In this embodiment, it should be specifically explained that a receiving groove is provided in the bearing beam 303, and a leakage hole is opened in the bottom wall of the receiving groove. The lubricating oil in the slide rail drips into the receiving groove of the bearing beam 303, and the lubricating oil drips onto the pulley 305 through the leakage hole on the bottom wall of the receiving groove, so as to lubricate the steel belt 306 that gradually passes through the pulley 305 upward; The guide pipe 605 is arranged at a position at least higher than the oil collecting bag 602, so that after receiving the lubricating oil from the recovery tank, the guide pipe 605 can pass through the check valve 606 and the hose in one direction under the action of gravity potential energy and flow into the oil collecting bag 602 without causing the reverse osmosis backflow problem of the oil in the oil collecting bag 602; The protection component 6 also includes a liquid pump 607 installed on the side wall of the oil collecting bag 602. The liquid pump 607 is connected to the oil storage tank 501 through a hose. In addition, the slide 601 is also equipped with a gravity sensor and a pressure sensor. The base 2 is installed with a controller 8. When the load on the top of the slide 601 reaches the maximum gravity threshold set by the gravity sensor, and the pressure on the side wall of the slide 601 reaches the minimum pressure threshold set by the pressure sensor, it is determined that the oil collecting bag 602 is reset to the end of the base 2 with the slide 601, and the oil collecting bag 602 is overloaded and needs to be drained. Then the gravity sensor and the pressure sensor output judgment information to the controller 8, and the controller 8 receives the judgment information and outputs a control instruction to the liquid pump 607, so as to control the liquid pump 607 to extract part of the oil and inject it back into the oil storage tank 501, adjust the oil content in the oil collecting bag 602, and ensure the oil collecting capacity and use safety of the oil collecting bag 602.

[0028] Working principle of the present invention: Initially, the material transport component 4 stops above the vent of the base 2, and the fan 9 can blow air into the air guide plate 402 through the vent, and the air flow is discharged to the side of the waste discharge pipe 403 through the air holes on the inclined plate of the air guide plate 402, so that an air curtain is formed at the material inlet of the cargo box 401, so that when the cargo box 401 is loaded with materials, the heavier materials can smoothly pass through the air curtain and fall into the bottom of the cargo box 401, while the light dust and impurities are transported to the waste collection device by the air flow through the waste discharge pipe 403, so as to separate and remove impurities from the materials; After loading is completed, the telescopic end of the hydraulic rod 301 drives the supporting beam 303 connected thereto to move upward, and the moving supporting beam 303 will drive the traction steel belt 306 upward by means of the pulley 305, so that the steel belt 306 connected to one end of the cargo box 401 is pulled upward along with the pulley 305, so that the material transport component 4 can be lifted along the stand 1 and separated from the vent of the base 2 to transport the cargo box 401 loaded with materials. At the same time, the upwardly moving supporting beam 303 can push the piston rod 503 upward by means of the connecting rod 304, so that the piston rod 503 gradually retracts into the jet tube 502, causing the liquid cavity of the jet tube 502 to be pressurized, and the liquid cavity The lubricating oil is discharged through the discharge check valve 504 after being pressurized and introduced into the slide rail of the stand 1 through the conduit, and then drips into the receiving groove of the load-bearing beam 303. The lubricating oil drips onto the pulley 305 through the leakage hole on the bottom wall of the receiving groove, and lubricates the steel belt 306 that gradually passes through the pulley 305 upward, thereby reducing the wear of the contact parts between the two and ensuring the stability of the equipment operation. The lubricating oil overflowed from the transmission is introduced into the positioning groove of the positioning beam 302 through the steel belt 306, and then introduced into the recovery groove at the bottom end of the stand 1 through the oil guide pipe 307, and finally enters the oil collecting bag 602 through the guide pipe 605, the check valve 606 and the hose connected thereto for collection and treatment; At the same time, the upward-moving load beam 303 can carry the T-shaped push rod 308 to move upward together and gradually push the swing rod 703 to both sides, so that the swing rod 703 can rotate from outside to inside with the rotating handle 701 as the axis, so that the bottom ends of the left and right swing rods 703 can push the slide 601 inward and compress the spring 604, until the slides 601 on both sides carry the oil collecting bag 602 to converge to the vent to form an anti-falling cushion layer, thereby realizing the anti-falling protection of the cargo box 401. At this time, the load beam 303 carries the cargo box 401 to lift to the highest point for unloading; After unloading is completed, the telescopic end of the hydraulic rod 301 carries the load-bearing beam 303 to move downward and reset. The load-bearing beam 303 will lower the steel belt 306 through the pulley 305, causing the cargo box 401 to slowly drop to the initial position. At the same time, the liquid chamber of the jet tube 502 forms a negative pressure as the piston rod 503 is withdrawn, and the lubricating oil is automatically replenished into the liquid chamber of the jet tube 502 through the liquid inlet one-way valve 505, ready for use in the next cycle. At the same time, the rocker arm 703 loses the thrust of the T-shaped push rod 308, and under the elastic force of the spring 604, the slide 601 will push the rocker arm 703 to rotate and reset, causing the vent to resume unblocked, and the equipment to return to its initial state, ready for the next cycle of material transportation.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or modifications within the technical scope disclosed by the present invention; according to the technical plan and its improved conception of the present invention, all of which should be included under the protection of the present invention.

Claims

1. A safety device for a conveyor elevator, comprising a frame (1) and a base (2) mounted at the bottom thereof, characterized in that: The inner side of the stand (1) is equipped with a lifting component (3), and the front side of the stand (1) is provided with a material transport component (4). The lifting component (3) can pull the material transport component (4) to lift when it is telescopically moved. The top of the stand (1) is equipped with an oil supply component (5). The lifting component (3) can push and pull the oil supply component (5) to perform oil replenishment or oil injection when it is telescopically moved. The left and right sides of the stand (1) are equipped with symmetrically distributed pushing components (7), and the accommodating cavity of the base (2) is provided with a mirror-image-distributed protection component (6), wherein when the lifting component (3) moves upward, the pushing component (7) can be pushed to rotate and the protection component (6) can be pressed inward to gather, thereby isolating the vent at the top of the base (2) to construct an anti-fall protection. The protection assembly (6) comprises a slide seat (601), an oil collecting bag (602), a wing plate (603), a spring (604), a flow guide pipe (605) and a check valve (606), wherein the slide seat (601) is slidably arranged in a receiving cavity of the stand (1), the top wall of the slide seat (601) is equipped with an oil collecting bag (602), the side wall of the slide seat (601) is equipped with a wing plate (603), the spring (604) is connected between the wing plate (603) and a partition plate of the base (2), the flow guide pipe (605) is buried in the top wall of the base (2) and one end of the flow guide pipe is connected to the recovery tank, and the other end of the flow guide pipe is provided with a check valve (606), and the check valve (606) is connected to the oil collecting bag (602) through a hose; The pushing assembly (7) comprises a rotating handle (701), an axle seat (702) and a swing rod (703), wherein the rotating handle (701) is rotatably connected to one end of the axle seat (702), and the other end of the axle seat (702) is fixedly connected to the stand (1), and a swing rod (703) is installed on the outer side of the rotating handle (701), the top end of the swing rod (703) extends obliquely toward the stand (1), and the bottom end of the swing rod (703) is inserted into a slot on the side wall of the slide seat (601); The lifting assembly (3) comprises a hydraulic rod (301), a positioning beam (302), a bearing beam (303) and a connecting rod (304); the oil supply assembly (5) comprises an oil storage tank (501), a jet tube (502) and a piston rod (503); the oil storage tank (501) is fixedly mounted on the top wall of the stand (1); symmetrically distributed jet tubes (502) are mounted on the left and right sides of the oil storage tank (501); a piston rod (503) is movably inserted into the jet tube (502); and the bottom end of the rod body of the piston rod (503) is fixedly connected to the bearing beam (303) via a connecting rod (304).

2. A safety device for a conveyor elevator according to claim 1, characterized in that: The material transport component (4) comprises a cargo box (401), an air guide plate (402) and a waste discharge pipe (403), wherein the cargo box (401) is slidably arranged on a slide rail of the stand (1), and an air guide plate (402) is installed in the cargo box (401) on the side close to the lifting component (3), the bottom end of the air guide plate (402) is an opening communicating with a vent, and an air hole is provided above the front inclined plate of the air guide plate (402), and a waste discharge pipe (403) is provided on the front wall of the cargo box (401) and is arranged in alignment with the air hole.

3. A safety device for a conveying elevator according to claim 1, characterized in that: The hydraulic rod (301) is fixedly mounted in the lower section of the stand (1) via a positioning beam (302), and the telescopic end of the hydraulic rod (301) is equipped with a bearing beam (303) that moves along a slide rail of the stand (1).

4. A safety device for a conveying elevator according to claim 3, characterized in that: The lifting assembly (3) further comprises a pulley (305), a steel belt (306), an oil introduction pipe (307) and a T-shaped push rod (308). The left and right sides of the bottom wall of the load-bearing beam (303) are provided with symmetrically distributed pulleys (305). The steel belt (306) passes over the pulleys (305) and is transmission-connected thereto. One end of the steel belt (306) is fixedly connected to the cargo box (401), while the other end of the steel belt (306) is fixedly connected to the positioning groove of the positioning beam (302). The oil introduction pipe (307) communicates with the positioning groove and the recovery groove at the bottom end of the stand (1). The rear side of the load-bearing beam (303) is provided with a connecting rod (304) and a T-shaped push rod (308). The T-shaped push rod (308) is slidably connected to the swing rod (703).

5. A safety device for a conveying elevator according to claim 4, characterized in that: The bearing beam (303) is provided with a receiving groove, and a leakage hole is opened on the bottom wall of the receiving groove. The lubricating oil in the slide rail drips into the receiving groove of the bearing beam (303), and the lubricating oil drips onto the pulley (305) through the leakage hole on the bottom wall of the receiving groove, thereby lubricating the steel belt (306) that gradually passes through the pulley (305) upward.

6. A safety device for a conveying elevator according to claim 1, characterized in that: The guide pipe (605) is arranged at a position at least higher than the oil collecting bag (602), so that after receiving the lubricating oil from the recovery tank, the guide pipe (605) can pass through the check valve (606) and the hose in one direction under the action of gravity potential energy and flow into the oil collecting bag (602), without causing the problem of reverse osmosis and reflux of the oil in the oil collecting bag (602).

7. A safety device for a conveying elevator according to claim 1, characterized in that: The protection assembly (6) further comprises a liquid pump (607) mounted on the side wall of the oil collecting bag (602), wherein the liquid pump (607) is connected to the oil storage tank (501) via a hose. In addition, a gravity sensor and a pressure sensor are also provided in the slide seat (601), and a controller (8) is mounted on the base (2).

8. The safety device for a conveying elevator according to claim 1, characterized in that: The upper and lower layers of the base (2) are respectively a receiving chamber and a configuration chamber. A ventilation hole is provided on the top wall of the receiving chamber. A fan (9) is installed in the configuration chamber. When the slide seat (601) is not pressed by the swing rod (703), the slide seat (601) is restored to the left and right sides of the base (2) under the elastic force of the spring (604). At this time, the ventilation hole is unobstructed, so that the fan (9) can blow air into the air guide plate (402) through the ventilation hole.

9. A safety device for a conveying elevator according to claim 1, characterized in that: The oil supply assembly (5) further comprises a liquid discharge one-way valve (504) and a liquid inlet one-way valve (505), and the top end of the jet tube (502) is provided with a liquid discharge one-way valve (504) and a liquid inlet one-way valve (505) which are in one-way communication with the liquid cavity thereof, wherein the liquid discharge one-way valve (504) is connected to the slide rail via a conduit, and the liquid inlet one-way valve (505) is connected to the oil storage tank (501) via a conduit.

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