Anti-collision goods elevator with blind area monitoring function

Abstract

An anti-collision goods elevator with a blind area monitoring function belongs to the technical field of elevators and comprises a lift car which is arranged in a derrick and can move up and down, a monitoring door fence used for monitoring carried objects and a control box used for controlling the goods elevator to work. An entrance lift car door and an exit lift car door are arranged on the front side and the rear side, opposite to each other, of the lift car correspondingly, an entrance landing door and an exit landing door are arranged on the side, opposite to the entrance lift car door and the exit lift car door, of each floor correspondingly, and a monitoring area is arranged on the side, opposite to the lift car, of the entrance landing door of each floor. The monitoring door fence is arranged at the end, away from the entrance landing door, of the monitoring area. The AI camera, the emitter, the receiver and the pressure sensing strip are matched to measure and calculate the distance between the foremost end of the carrier loader carrying goods and the front end wheel, so that the stopping device is controlled to act, the carrier loader carrying the goods is stopped on the outer side of the entrance landing door, and the goods or the carrier loader is prevented from colliding with the entrance landing door of the goods elevator.

Description

Technical Field

[0001] The invention belongs to the technical field of elevators, and in particular relates to an anti-collision freight elevator with a blind spot monitoring function. Background Art

[0002] Freight elevators are lifting equipment for transporting goods and are the main equipment for transporting goods between floors of a factory. During use, freight elevators are often delivered to the elevator car by carrier vehicles such as cargo forklifts or cargo carts. When the goods on the carrier vehicle block the delivery worker's line of sight, the moving item unit composed of the goods and the carrier vehicle can easily hit the elevator floor door and the elevator car door panel while the delivery worker is controlling the carrier vehicle to enter the elevator car, causing damage to the elevator floor door and the elevator car door device.

[0003] In response to the above problems, the applicant has provided a technical solution for an active safety elevator with active identification and anti-collision function in the Chinese patent document with patent number 202411120411.4 previously applied for. The solution can actively identify the cargo carried on the outside of the elevator door and provide anti-collision warning signals for delivery workers, greatly reducing the risk of collision with the elevator. At the same time, while ensuring safety, it reduces unnecessary warning reminders, improves the convenience and comfort of taking the elevator, and balances the conflict between the anti-collision function and the comfort of taking the elevator.

[0004] In actual applications, it is found that the method of relying on anti-collision warning signals to prompt delivery workers to move goods for anti-collision cannot completely avoid collisions between freight elevators and goods. Due to the obstruction of goods, delivery workers cannot observe the distance between the front end of the goods and the door. They need to rely on the operation of the delivery vehicle by the delivery workers, slow down the movement speed of the delivery vehicle, and pay attention to anti-collision warning signals, which will affect the efficiency of cargo transportation to a certain extent. Especially for freight elevators used in factories, most of the factory buildings are low-rise buildings with two or three floors. When designing the derrick and car frame of the freight elevator, its structural strength is relatively low, and it is easy to be damaged and unusable when it is hit by external forces; and the freight elevator is used more frequently, and the probability of the freight elevator being hit by a collision will be greatly increased. When the freight elevator is hit and cannot be used, it will have a major impact on the factory's cargo transportation. Therefore, a collision-proof freight elevator with blind spot monitoring function is needed. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an anti-collision freight elevator with a blind spot monitoring function.

[0006] The technical solution adopted by the present invention to solve its technical problem is: An anti-collision freight elevator with a blind spot monitoring function comprises a car that can move up and down and is arranged in a derrick, a monitoring gate for monitoring the carried objects and a control box for controlling the operation of the freight elevator; the car is provided with an entrance car door and an exit car door on the front and rear opposite sides respectively, and each floor is provided with an entrance floor door and an exit floor door on the side opposite to the car where the entrance car door and the exit car door are provided respectively, and a monitoring area is provided on the side of the entrance floor door of each floor facing away from the car, and the monitoring gate is provided at one end of the monitoring area away from the entrance floor door; The monitoring gate fence includes a crossbeam and two columns connected to both ends of the crossbeam, the crossbeam is provided with an AI camera for identifying whether the goods entering the monitoring area are transported by a carrier, and the two columns are provided with a transmitter panel and a receiver panel on opposite sides, respectively, the transmitter panel and the receiver panel extend along the length direction of both sides of the monitoring area, and the transmitter panel and the receiver panel are provided with a plurality of transmitters and receivers, respectively, and the transmitters and receivers are arranged in pairs; The monitoring area is provided with a pressure sensing strip and several groups of blocking devices. The pressure sensing strip is arranged at one end of the monitoring area close to the monitoring gate fence, and the several groups of blocking devices are distributed in sequence from the end close to the entrance door to the end away from the entrance door; the AI ​​camera, transmitter, receiver, pressure sensing strip and several groups of blocking devices are all connected to the control box through circuits.

[0007] In the present invention, the blocking device includes a base, a flip blocking plate and a telescopic cylinder. The base is provided with a connecting plate extending upward. One end of the flip blocking plate is hinged to the upper end of the connecting plate. The telescopic cylinder is hingedly mounted on the base, and the telescopic end of the telescopic cylinder is hinged to the bottom of the flip blocking plate.

[0008] In the present invention, an anti-collision device is provided in the car, and the anti-collision device includes an anti-collision blocking block, two extension arms and two groups of moving components. The two groups of moving components are respectively arranged on the left and right sides of the car, one end of the two extension arms are respectively hinged to the two groups of moving components, and the two groups of moving components synchronously drive the two extension arms to move, and the other ends of the two extension arms are respectively hinged to the two ends of the anti-collision blocking block, and the anti-collision blocking block is located on the bottom plate inside the car.

[0009] In the present invention, a recessed position capable of accommodating an anti-collision blocking block is provided on the bottom plate, and the recessed position is arranged at one end of the bottom plate close to the exit car door.

[0010] In the present invention, the moving assembly includes a motor, a driving gear, a driven gear, a transmission screw and a moving nut. The motor is fixed to the side wall of the car, the driving gear is connected to the main shaft of the motor, the transmission screw is rotatably installed on the side wall of the car, the driven gear is connected to one end of the transmission screw, the driving gear is meshed with the driven gear, the moving nut is threadedly connected to the transmission screw, and the extension arm is hinged to the outside of the moving nut.

[0011] In the present invention, a first inclined guide surface is provided on the side of the anti-collision blocking block facing the entrance car door, and the first inclined guide surface extends obliquely from top to bottom along the direction of the entrance car door toward the exit car door; the recessed position is provided with a second inclined guide surface adapted to the first inclined guide surface.

[0012] In the present invention, the first inclined guide surface and the top surface of the anti-collision blocking block are transitioned through a rounded corner.

[0013] In the present invention, the extension arm includes a first connecting arm, a connecting shaft, a guide wheel and a second connecting arm, one end of the first connecting arm is hinged to the side wall of the movable nut, the other end of the first connecting arm is fixedly connected to one end of the connecting shaft, the guide wheel is rotatably mounted on the outer wall of the connecting shaft, the other end of the connecting shaft is fixedly connected to one end of the second connecting arm, the other end of the second connecting arm is hinged to the anti-collision blocking block, the first connecting arm and the second connecting arm are arranged in parallel, and the connecting shaft is perpendicular to the first connecting arm and the second connecting arm.

[0014] In the present invention, a guide groove for cooperating with a guide wheel is provided on the side wall of the car, one end of the guide groove is connected to the recessed position, and the extension arm extends from the outside of the car into the inside of the car through the guide groove.

[0015] In the present invention, a movable roller is provided at the bottom of the anti-collision blocking block.

[0016] The beneficial effects of the present invention are as follows: by setting a monitoring area outside the entrance door of the freight elevator and setting several groups of blocking devices in the monitoring area, when a vehicle carrying goods enters the monitoring area through the monitoring gate, the distance between the front end and the front end wheel of the vehicle carrying goods can be measured through the cooperation of the AI ​​camera, the transmitter, the receiver and the pressure sensing strip, so as to control the action of the blocking device, so that the vehicle carrying goods is stopped outside the entrance door, avoiding the collision between the goods or the vehicle and the entrance door of the freight elevator, and at the same time, the anti-collision scheme is not affected by the delivery worker's control of the vehicle, and the anti-collision reliability is higher. When the delivery worker controls the movement of the vehicle, he only needs to drive the vehicle at a normal speed. When the goods or the vehicle approaches the entrance door, it can be stopped by the blocking device protruding from the ground, thereby ensuring the efficiency of cargo transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the freight elevator of this embodiment; Figure 2 This is a circuit connection diagram of the control box of this embodiment; Figure 3 This is a schematic diagram of the top view of the monitoring area and the car in this embodiment; Figure 4 This is a schematic diagram of the structure of the blocking device of this embodiment in a flat state; Figure 5 This is a schematic diagram of the structure of the blocking device in the embodiment in a raised state; Figure 6 Schematic diagram of the structure of the anti-collision device of this embodiment; Figure 7 This is a schematic diagram of the structure of the interior floor and side walls of the car in this embodiment; Figure 8 This is a schematic diagram of the structure of the anti-collision blocking block of this embodiment; Fig. 9 is an exploded view of the extension arm of this embodiment; Fig.10 This is a schematic diagram of the connection structure of the car, counterweight and traction unit of this embodiment; Fig.11 Schematic diagram of the structure of the synchronization component of this embodiment. DETAILED DESCRIPTION

[0018] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figures 1 to 11As shown, the present embodiment discloses an anti-collision freight elevator with a blind spot monitoring function, comprising a car 2 that can move up and down and is arranged in a derrick 1, a monitoring gate 3 for monitoring the carried objects and a control box 4 for controlling the operation of the freight elevator; the car 2 is provided with an entrance car door 21 and an exit car door 211 on opposite sides of the front and rear, respectively, and each floor is provided with an entrance floor door 5 and an exit floor door 51 on the side opposite to the car 2 where the entrance car door 21 and the exit car door 211 are provided, respectively. The transported goods enter the car 2 through the entrance floor door 5 and the entrance car door 21, and after being transported to the designated floor with the car 2, leave the car 2 through the exit car door 211 and the exit floor door 51, that is, the goods can enter from one side of the car 2 and leave from the other side, so as to improve the transportation efficiency of the freight elevator and avoid obstacles to the entry and exit of goods.A monitoring area 6 is arranged outside the entrance door 5 of each floor. The monitoring area 6 is arranged on the side of the entrance door 5 facing away from the car 2. The monitoring door fence 3 is arranged at the end of the monitoring area 6 away from the entrance door 5. The monitoring door fence 3 includes a crossbeam 31 and two columns 32 respectively connected to the two ends of the crossbeam 31. The crossbeam 31 is provided with an AI camera 33 for identifying whether the goods entering the monitoring area 6 are transported by a transport vehicle. The two columns 32 are respectively provided on the opposite sides thereof with a transmitter panel 7 and a receiver panel 8. The transmitter panel 7 and the receiver panel 8 are respectively provided. The panels 8 extend along the length direction of both sides of the monitoring area 6, respectively. The transmitter panel 7 and the receiver panel 8 are provided with a plurality of transmitters and receivers, respectively, and the transmitters and receivers are arranged in pairs; the monitoring area 6 is provided with a pressure sensing strip 9 and a plurality of groups of blocking devices 10, the pressure sensing strip 9 is arranged at one end of the monitoring area 6 close to the monitoring door fence 3, and the plurality of groups of blocking devices 10 are sequentially spaced from the end close to the entrance layer door 5 to the end away from the entrance layer door 5; the AI ​​camera 33, the transmitter, the receiver, the pressure sensing strip 9 and the plurality of groups of blocking devices 10 are all arranged in pairs. The control box 4 is connected through the circuit. When the vehicle carrying goods passes through the monitoring gate 3 and enters the monitoring area 6, the AI ​​camera 33 sends the recognition signal to the control box 4, and the transmitter sends the sensing light beam to the receiver at the same time. The goods entering the monitoring area 6 will block the sensing light beam of the transmitter, so that the receiver cannot receive the sensing light beam of the corresponding transmitter. As the vehicle transporting goods enters the monitoring area 6, the blocked sensing light beam gradually increases until the wheels of the vehicle roll over the pressure sensing strip 9. The pressure sensing strip 9 sends a pressure signal to the control box 4. The control box 4 calculates the maximum distance in the sensing light beam blocked by the transmitter along the length direction extending in the monitoring area 6 at this time. The maximum distance is the distance between the front end of the vehicle carrying goods and the front wheel. The control box 4 controls the corresponding blocking device 10 to act according to the maximum distance, so that the distance between the blocking device 10 executing the action and the entrance door 5 is greater than the maximum distance, so that when the vehicle carrying goods enters the monitoring area 6 and waits for the freight elevator, the blocking device 10 executing the action restricts the front wheel of the vehicle to avoid the collision between the vehicle carrying goods and the entrance door 5. When the AI ​​camera 33 recognizes that the cargo entering the monitoring area 6 is not carried by a transport vehicle, the blocking device 10 does not perform any action.

[0020] Specifically, the blocking device 10 includes a base 101, a flip blocking plate 102 and a telescopic cylinder 103. The base 101 is provided with a connecting plate 104 extending upward. One end of the flip blocking plate 102 is hinged to the upper end of the connecting plate 104. The telescopic cylinder 103 is hingedly mounted on the base 101. The telescopic end of the telescopic cylinder 103 is hinged to the bottom of the flip blocking plate 102. When the telescopic cylinder 103 is retracted, the flip blocking plate 102 rotates around the hinge axis hinged to the upper end of the connecting plate 104, and the flip blocking plate 102 is in a horizontal state; when the telescopic cylinder 103 is extended, the flip blocking plate 102 rotates around the hinge axis hinged to the upper end of the connecting plate 104, and the flip blocking plate 102 is at an angle with the horizontal plane. The other end of the flip blocking plate 102 protrudes from the ground of the monitoring area 6, thereby restricting the carrier and blocking the carrier from moving forward.

[0021] Furthermore, in order to prevent the cargo-carrying vehicle from colliding with the exit car door 211 after entering the car 2, an anti-collision device 11 is provided in the car 2, and the anti-collision device 11 includes an anti-collision blocking block 111, two extension arms 112 and two groups of moving components 113, the two groups of moving components 113 are respectively arranged on the left and right sides of the car 2, one end of the two extension arms 112 is respectively connected to the two groups of moving components 113, the two groups of moving components 113 synchronously drive the two extension arms 112 to move, the other ends of the two extension arms 112 are respectively connected to the two ends of the anti-collision blocking block 111, the anti-collision blocking block 111 is located on the bottom plate inside the car 2, and the bottom plate inside the car 2 is provided with a recessed position 22 that can accommodate the anti-collision blocking block 111, and the recessed position 22 is arranged at one end of the bottom plate close to the exit car door 211. The control box 4 controls the position of the anti-collision blocking block 111 according to the calculated maximum distance, so that the distance between the anti-collision blocking block 111 and the exit car door 211 is greater than the maximum distance, so that after the carrier enters the car 2, the front wheels of the carrier are restricted by the anti-collision blocking block 111, avoiding the front end of the carrier or the goods from colliding with the car door 2. When the carrier enters the car 2 loaded with goods, the two groups of moving components 113 act synchronously, driving the two extension arms 112 and the anti-collision blocking block 111 to leave the recessed position 22 and move to the corresponding position to block the carrier; when the carrier leaves the car 2 loaded with goods, the two groups of moving components 113 act synchronously, driving the two extension arms 112 and the anti-collision blocking block 111 to enter the recessed position 22, so that the top surface of the anti-collision blocking block 111 is flush with the top surface of the bottom plate of the car 2, and the carrier can pass smoothly.

[0022] Specifically, the moving assembly 113 includes a motor 114, a driving gear 115, a driven gear 116, a transmission screw 117 and a moving nut 118. The motor 114 is fixed to the side wall of the car 2, the driving gear 115 is connected to the main shaft of the motor 114, the transmission screw 117 is rotatably installed on the side wall of the car 2, the driven gear 116 is connected to one end of the transmission screw 117, the driving gear 115 is meshed with the driven gear 116, the moving nut 118 is threadedly connected with the transmission screw 117, and the extension arm 112 is hinged to the outer side of the moving nut 118. When the motor 114 rotates, the driving gear 115 is driven to rotate, the driving gear 115 drives the driven gear 116 to rotate, the driven gear 116 drives the transmission screw 117 to rotate, the transmission screw 117 drives the moving nut 118 to move along the extension direction of the transmission screw 117, and the moving nut 118 drives the extension arm 112 and the anti-collision blocking block 111 to move.

[0023] Specifically, the side of the anti-collision blocking block 111 facing the entrance car door 21 is provided with a first inclined guide surface 1111, and the first inclined guide surface 1111 extends obliquely from top to bottom along the entrance car door 21 toward the exit car door 211; the recessed position 22 is provided with a second inclined guide surface 221 adapted to the first inclined guide surface 1111; under the guiding cooperation of the first inclined guide surface 1111 and the second inclined guide surface 221, the anti-collision blocking block 111 can smoothly slide into and out of the recessed position 22. Preferably, the first inclined guide surface 1111 and the top surface of the anti-collision blocking block 111 are transitioned by a rounded corner.

[0024] Specifically, the extension arm 112 includes a first connecting arm 119, a connecting shaft 120, a guide wheel 121 and a second connecting arm 122, one end of the first connecting arm 119 is hinged to the side wall of the movable nut 118, the other end of the first connecting arm 119 is fixedly connected to one end of the connecting shaft 120, the guide wheel 121 is rotatably installed on the outer wall of the connecting shaft 120, the other end of the connecting shaft 120 is fixedly connected to one end of the second connecting arm 122, the other end of the second connecting arm 122 is hinged to the anti-collision blocking block 111, the first connecting arm 119 and the second connecting arm 122 are arranged in parallel, and the connecting shaft 120 is perpendicular to the first connecting arm 119 and the second connecting arm 122. The side wall of the car 2 is provided with a guide groove 23 for cooperating with the guide wheel 121, one end of the guide groove 23 is connected with the recessed position 22, and the extension arm 112 extends from the outside of the car 2 into the inside of the car 2 through the guide groove 23. During the movement of the extension arm 112, under the cooperation of the guide wheel 121 and the guide groove 23, the extension arm 112 can move smoothly, thereby avoiding problems such as movement jamming and noise.

[0025] Furthermore, in order to improve the smoothness of the movement of the anti-collision blocking block 111, a moving roller 123 is provided at the bottom of the anti-collision blocking block 111. During the movement, the anti-collision blocking block 111 contacts the bottom plate of the car 2 through the moving roller 123, so that the anti-collision blocking block 111 can move smoothly.

[0026] In this embodiment, the freight elevator also includes a derrick 1, and a car 2 is arranged in the derrick 1. In order to improve the stability of the freight elevator operation, a left counterweight 13 and a right counterweight 14 are respectively arranged on both sides of the car 2. The left counterweight 13 and the right counterweight 14 are symmetrical and adopt the same connection structure. The front and rear sides of the left counterweight 13 are connected with a counterweight guide rope 15 for guiding the left counterweight 13 to move up and down. The top and bottom of the derrick 1 are respectively fixed with an upper fixing seat 16 and a lower fixing seat 17. The counterweight guide rope 15 The two ends of the left counterweight 13 are respectively tightened and fixed to the upper fixing seat 16 and the lower fixing seat 17. The front and rear sides of the left counterweight 13 are provided with a counterweight guide wheel group 18 for cooperating with the counterweight guide rope 15 to guide the left counterweight 13 to move up and down. The counterweight guide rope 15 passes through the counterweight guide wheel group 18. Under the cooperation of the counterweight guide rope 15 and the counterweight guide wheel group 18, the left counterweight 13 moves up and down stably along the outer side of the derrick 1, so that the left counterweight 13 can reduce shaking as much as possible during the up and down movement process, reducing the installation space of the freight elevator. For the right counterweight 14, it is also guided to move up and down by cooperating with the counterweight guide rope 15. For details, please refer to the connection structure of the left counterweight 13, which will not be described in detail here.

[0027] In this embodiment, two upper counterweight traction ropes 19 are connected to the top of the left counterweight 13, and two upper counterweight return rope pulleys 30 are provided at the top of the derrick 1 corresponding to the two upper counterweight traction ropes 19. One ends of the two upper counterweight traction ropes 19 are symmetrically connected to the top of the left counterweight 13, and the other ends extend upward in parallel and bypass the two upper counterweight return rope pulleys 30 before being connected to the top of the car 2. The bottom of the left counterweight 13 is connected with two lower counterweight traction ropes 20, and the bottom of the derrick 1 is provided with two lower counterweight anti-ropes 40 corresponding to the two lower counterweight traction ropes 20. The bottom of the derrick 1 is also equipped with a traction unit 50 and two traction wheels 60. The traction unit 50 is provided with two output shafts, and the two traction wheels 60 are respectively connected to the two output shafts of the traction unit 50. The rotation speed and direction of the two traction wheels 60 are the same; one end of the two lower counterweight traction ropes 20 is symmetrically connected to the bottom of the left counterweight 13, and the other end extends downward in parallel and passes through the two lower counterweight anti-ropes 40 and is connected to the bottom of the car 2. When the car 2 moves up and down, the left counterweight 13 is connected through the upper counterweight traction rope 19 and the lower counterweight traction rope 20, so as to adjust the position of the left counterweight 13. For the right counterweight 14, it is also connected with the upper counterweight traction rope 19 and the lower counterweight traction rope 20, and the position is adjusted by the upper counterweight traction rope 19 and the lower counterweight traction rope 20. For details, please refer to the connection structure of the left counterweight 13, which will not be described in detail here.

[0028] In this embodiment, four car traction ropes 70 are connected to the top of the car 2, and one ends of the four car traction ropes 70 are respectively connected to the left front side, the left rear side, the right front side and the right rear side of the top of the car 2. Correspondingly, four upper car return pulleys 80 are provided at the top of the derrick 1, and four lower car return pulleys 90 are provided at the bottom of the derrick 1. The other ends of the four car traction ropes 70 extend upward in parallel and respectively bypass the four upper car return pulleys 80, and then extend downward in parallel and respectively bypass the four lower car return pulleys 90 and are connected to the corresponding traction wheels 60. Similarly, four car bottom traction ropes 71 are connected to the bottom of the car 2, and one ends of the four car bottom traction ropes 71 are respectively connected to the left front side, left rear side, right front side and right rear side of the bottom of the car 2. Correspondingly, four car bottom return rope pulleys 91 are provided at the bottom of the derrick 1, and the other ends of the four car bottom traction ropes 71 extend downward in parallel and pass around the four car bottom return rope pulleys 91 and are connected to the corresponding traction wheels 60.

[0029] In addition, in order to improve the stability of the freight elevator operation and enable the car 2 and the counterweight to move synchronously, each car traction rope 70 is connected to a corresponding upper counterweight traction rope 19 through a synchronization component 200, so that the car traction rope 70 and the upper counterweight traction rope 19 are synchronously retracted and released. Specifically, the synchronization component 200 includes two connecting hooks 201, two adjusting members 202, two connecting rings 203, two fixed clamping plates 204, two rope head fixing clamping rings 205 and two bolt and nut assemblies 206. The upper end of the connecting hook 201 is provided with a threaded column, the lower end of the connecting ring 203 is provided with a threaded column, the adjusting member 202 is provided with an adjustment slot 207 extending up and down, the upper and lower ends of the adjusting member 202 are respectively provided with an upper threaded hole and a lower threaded hole connected to the adjustment slot 207. The threaded column of the connecting hook 201 is connected to the lower threaded hole, and the threaded column of the connecting ring 203 is connected to the upper threaded hole. The tightness of the upper counterweight traction rope 19 and the car traction rope 70 can be adjusted by rotating the connecting hook 201 and the connecting ring 203. The two connecting hooks 201 are respectively threadedly connected to one end of the two adjusting members 202, and the two connecting rings 203 are respectively threadedly connected to the other ends of the two adjusting members 202. The two rope end fixing clamps 205 are respectively connected to the two connecting rings 203 by loops, and the two ends of the two fixing clamps 204 are respectively fixed to the two rope end fixing clamps 205 by two bolt and nut assemblies 206. The rope end fixing clamp 205 is located between the two fixing clamps 204, and one end of the upper counterweight traction rope 19 and the car traction rope 70 is respectively fixed after passing through the two rope end fixing clamps 205.

[0030] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means belongs to the protection scope of the present invention.

Claims

1. An anti-collision freight elevator with blind spot monitoring function, characterized in that: The invention comprises a car (2) arranged in a derrick (1) and capable of moving up and down, a monitoring gate (3) for monitoring the transported objects, and a control box (4) for controlling the operation of the freight elevator; the car (2) is provided with an entrance car door (21) and an exit car door (211) on opposite sides of the front and rear sides, respectively; an entrance floor door (5) and an exit floor door (51) are provided on the side of each floor opposite to the car (2) where the entrance car door (21) and the exit car door (211) are provided, respectively; a monitoring area (6) is provided on the side of the entrance floor door (5) of each floor facing away from the car (2); and the monitoring gate (3) is provided at one end of the monitoring area (6) away from the entrance floor door (5); The monitoring gate (3) comprises a crossbeam (31) and two columns (32) respectively connected to both ends of the crossbeam (31); an AI camera (33) is provided on the crossbeam (31) for identifying whether the cargo entering the monitoring area (6) is transported by a transport vehicle; a transmitter panel (7) and a receiver panel (8) are respectively provided on opposite sides of the two columns (32); the transmitter panel (7) and the receiver panel (8) respectively extend along the length direction of both sides of the monitoring area (6); a plurality of transmitters and receivers are respectively provided on the transmitter panel (7) and the receiver panel (8); and the transmitters and receivers are arranged in pairs; The monitoring area (6) is provided with a pressure sensing strip (9) and a plurality of groups of blocking devices (10); the pressure sensing strip (9) is arranged at one end of the monitoring area (6) close to the monitoring door fence (3); and the plurality of groups of blocking devices (10) are distributed in sequence from one end close to the entrance door (5) to one end away from the entrance door (5); the AI ​​camera (33), the transmitter, the receiver, the pressure sensing strip (9) and the plurality of groups of blocking devices (10) are all connected to the control box (4) via a circuit.

2. The anti-collision freight elevator with blind spot monitoring function according to claim 1 is characterized by: The blocking device (10) comprises a base (101), a flip blocking plate (102) and a telescopic cylinder (103); the base (101) is provided with a connecting plate (104) extending upward; one end of the flip blocking plate (102) is hinged to the upper end of the connecting plate (104); the telescopic cylinder (103) is hingedly mounted on the base (101); and the telescopic end of the telescopic cylinder (103) is hinged to the bottom of the flip blocking plate (102).

3. The anti-collision freight elevator with blind spot monitoring function according to claim 2 is characterized in that: An anti-collision device (11) is provided in the car (2), the anti-collision device (11) comprising an anti-collision blocking block (111), two extension arms (112) and two groups of moving components (113), the two groups of moving components (113) being respectively arranged on the left and right sides of the car (2), one end of the two extension arms (112) being respectively hinged to the two groups of moving components (113), the two groups of moving components (113) synchronously driving the two extension arms (112) to move, the other ends of the two extension arms (112) being respectively hinged to the two ends of the anti-collision blocking block (111), the anti-collision blocking block (111) being located on the bottom plate inside the car (2).

4. The anti-collision freight elevator with blind spot monitoring function according to claim 3 is characterized by: The bottom plate is provided with a recessed position (22) capable of accommodating an anti-collision blocking block (111), and the recessed position (22) is arranged at one end of the bottom plate close to the exit car door (211).

5. The anti-collision freight elevator with blind spot monitoring function according to claim 4 is characterized in that: The moving assembly (113) comprises a motor (114), a driving gear (115), a driven gear (116), a transmission screw (117) and a moving nut (118); the motor (114) is fixed to the side wall of the car (2); the driving gear (115) is connected to the main shaft of the motor (114); the transmission screw (117) is rotatably mounted on the side wall of the car (2); the driven gear (116) is connected to one end of the transmission screw (117); the driving gear (115) is meshed with the driven gear (116); the moving nut (118) and the transmission screw (117) are threadedly connected; and the extension arm (112) is hinged to the outside of the moving nut (118).

6. The anti-collision freight elevator with blind spot monitoring function according to claim 5, characterized in that: A first inclined guide surface (1111) is provided on a side of the anti-collision blocking block (111) facing the entrance car door (21), and the first inclined guide surface (1111) extends obliquely from top to bottom along the direction of the entrance car door (21) toward the exit car door (211); and a second inclined guide surface (221) adapted to the first inclined guide surface (1111) is provided at the recessed position (22).

7. The anti-collision freight elevator with blind spot monitoring function according to claim 6, characterized in that: The first inclined guide surface (1111) and the top surface of the anti-collision blocking block (111) are transitioned through a rounded corner.

8. The anti-collision freight elevator with blind spot monitoring function according to claim 5, characterized in that: The extension arm (112) comprises a first connecting arm (119), a connecting shaft (120), a guide wheel (121) and a second connecting arm (122); one end of the first connecting arm (119) is hinged to the side wall of the movable nut (118); the other end of the first connecting arm (119) is fixedly connected to one end of the connecting shaft (120); the guide wheel (121) is rotatably mounted on the outer wall of the connecting shaft (120); the other end of the connecting shaft (120) is fixedly connected to one end of the second connecting arm (122); the other end of the second connecting arm (122) is hinged to the anti-collision blocking block (111); the first connecting arm (119) and the second connecting arm (122) are arranged in parallel; and the connecting shaft (120) is perpendicular to the first connecting arm (119) and the second connecting arm (122).

9. The anti-collision freight elevator with blind spot monitoring function according to claim 8, characterized in that: A guide slot (23) for cooperating with a guide wheel (121) is provided on a side wall of the car (2); one end of the guide slot (23) is connected to the recessed position (22); and the extension arm (112) extends from the outside of the car (2) into the inside of the car (2) through the guide slot (23).

10. The anti-collision freight elevator with blind spot monitoring function according to claim 8, characterized in that: A movable roller (123) is provided at the bottom of the anti-collision blocking block (111).

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