Anti-collision device for freight elevator car wall

Abstract

The invention discloses a freight elevator car wall anti-collision device, and relates to the technical field of elevator car wall anti-collision, the freight elevator car wall anti-collision device comprises a car, buffer plates are arranged on the inner walls of the three sides of the car, and a plurality of mounting grooves are formed in the three buffer plates. Through the arrangement of the convenient-to-disassemble unit and the principle that like poles of magnets repel each other, the positions, opposite to the magnetic blocks, of the magnets are attached to the buffer plate, so that the magnets drive the magnetic blocks and the extrusion blocks to move, the magnetic blocks move to drive the elastic pieces to be compressed to generate elastic deformation, the extrusion blocks drive the L-shaped sliding blocks and the plug pins to move upwards, and the plug pins are far away from the insertion grooves; according to the technical scheme, the extrusion spring drives the movable rod and the rotating plate to move, the rotating plate is moved out of the mounting groove, then the rotating plate can be selectively turned over and replaced according to the collision condition of the rotating plate, the large plate is designed into a plurality of replaceable small plates, the small plates can be turned over, the effect of rapid replacement is achieved, and the damage cost can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of elevator car wall anti-collision, in particular to an anti-collision device for a freight elevator car wall. Background Art

[0002] Freight elevators are often hit by cargo when transporting cargo, which can cause damage and dents to the car walls, requiring protection of the elevator car.

[0003] A Chinese patent with announcement number CN219429436U discloses an elevator car wall anti-collision device, which relates to the elevator field and includes a car inner wall and a connecting plate. A mounting plate is installed on one side of the car inner wall, and a buffer seat and a warning component are respectively provided on one side of the mounting plate. The warning component includes a trigger switch, an alarm and a pressure plate. A return spring is connected to one side of the pressure plate, and an anti-collision plate is connected to one side of the connecting plate. Multiple movable cavities are opened on one side of the anti-collision plate, and springs are installed inside the movable cavities.

[0004] However, the above invention has the following shortcomings: most of the existing elevator car protection plates are whole pieces, so when the plate is damaged, the entire plate needs to be removed and reinstalled, which makes the plate removal process cumbersome, time-consuming and labor-intensive, and also leads to high plate loss costs. Most of the buffering methods for elevator car protection are relatively single, and the buffering effect is not ideal, resulting in the failure to effectively reduce the damage incidents to the elevator car. Summary of the invention

[0005] The object of the present invention is to provide a freight elevator car wall anti-collision device to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a cargo elevator car wall anti-collision device, comprising a car, wherein the inner walls of the three sides of the car are each provided with a buffer plate, the three buffer plates are each provided with a plurality of mounting grooves, one side of the three buffer plates is provided with a rotating plate, the plurality of rotating plates are respectively adapted to the plurality of mounting grooves, and further comprising:

[0007] A disassembly and assembly mechanism, wherein the disassembly and assembly mechanism is located on the buffer plate;

[0008] A buffer mechanism, wherein the buffer mechanism is located on the car;

[0009] The disassembly and assembly mechanism includes a convenient disassembly unit and a limiting unit, and the convenient disassembly unit includes a plurality of pairs of fixed rods respectively fixedly connected to the three buffer plates, each pair of the fixed rods is slidably connected with a movable rod, one end of the two movable rods is provided with a slot, both sides of the rotating plate are fixedly connected with a fixed shaft, the two fixed shafts are respectively located in the two slots, the two fixed rods and the two movable rods are commonly fixedly connected with an extrusion spring, the two fixed rods are slidably connected with a latch, the top ends of the two latches are fixedly connected with an L-shaped slider, the two fixed rods are fixedly connected with a fixed sleeve block, the two L-shaped sliders are slidably connected to the two fixed sleeve blocks, the tops of the two movable rods are provided with slots, the two slots are respectively adapted to the two latches, the two latches are sleeved with a return spring, and the two ends of the two return springs are respectively fixedly connected to the fixed rod and the L-shaped slider.

[0010] Preferably, multiple pairs of fixed grooves are provided on the three buffer plates, and an extrusion block is slidably connected in a pair of the fixed grooves, and the two extrusion blocks are respectively located below the two L-shaped sliders, and one end of the two extrusion blocks is fixedly connected to a magnetic block, and the two magnetic blocks are respectively slidably connected in the two fixed grooves, and spring sheets are fixedly connected to the two magnetic blocks, and one end of the two spring sheets is fixedly connected to the buffer plate.

[0011] Preferably, the limiting unit includes movable grooves respectively opened on the inner walls of one side of the plurality of card slots, a movable block is slidably connected in the movable groove, one end of the movable block is in contact with the fixed shaft, a telescopic spring is provided in the movable groove, both ends of the telescopic spring are respectively fixedly connected to the movable block and the movable rod, and an inclined plate is fixedly connected to the top of one end of the movable block.

[0012] Preferably, one end of the movable block is fixedly connected with a clamping block, and two limiting grooves are provided in the circumferential direction of the fixed shaft, and the clamping block is located in one of the limiting grooves.

[0013] Preferably, the buffer mechanism includes a buffer unit and an alarm unit, the buffer unit includes four telescopic rods fixedly connected to the three buffer plates respectively, one ends of the four telescopic rods are fixedly connected to the car, the four telescopic rods are sleeved with a first buffer spring, the two ends of the first buffer spring are respectively fixedly connected to the car and the buffer plates, four mounting seats are fixedly connected to the three buffer plates, the bottom ends of the four mounting seats are slidably connected with L-shaped blocks, the L-shaped blocks and the mounting seats are commonly fixedly connected with a connecting spring, one ends of every two L-shaped blocks are commonly fixedly connected with a fixed column, two fixed blocks are fixedly connected to the inner walls of the three sides of the car, the tops of the two fixed blocks are fixedly connected with a first protrusion, a second protrusion and a third protrusion, and the two fixed columns are respectively in contact with the tops of the two fixed blocks.

[0014] Preferably, the alarm unit includes a fixing seat fixedly connected to the inner walls of the three sides of the car respectively, a movable column is slidably connected to the fixing seat, a pressure sensor is fixedly connected to the fixing seat, and a mounting spring is fixedly connected to both the pressure sensor and the movable column.

[0015] Preferably, a controller is fixedly connected to the car, three inner walls of the car are fixedly connected to alarms, and the three alarms are electrically connected to the controller.

[0016] Preferably, the inner walls on three sides of the car are slidably connected with four sliding rods, and every two of the sliding rods are commonly fixedly connected with a fixing bar. The four sliding rods are all sleeved with a second buffer spring, and the two ends of the second buffer spring are respectively fixedly connected to the car and the fixing bar.

[0017] Preferably, two adjacent buffer plates are slidably connected together with an L-shaped plate, and both ends of the two L-shaped plates are fixedly connected with a group of fixing springs, wherein one end of the two groups of fixing springs are respectively fixedly connected to the two ends of one of the buffer plates, and one end of the other two groups of fixing springs are respectively fixedly connected to one end of the other two buffer plates.

[0018] The present invention provides a cargo elevator car wall anti-collision device through improvement, which has the following improvements and advantages compared with the prior art:

[0019] First, the present invention uses the principle of magnet repulsion between like poles through the setting of the easily disassembled unit, and affixes the magnet to the buffer plate in the direction of the magnetic block, so that the magnet drives the magnetic block and the extrusion block to move, and the movement of the magnetic block drives the elastic sheet to be compressed and elastically deformed, and the extrusion block drives the L-shaped slider and the latch to move upward, so that the latch moves away from the slot, and the extrusion spring drives the movable rod and the rotating plate to move, so that the rotating plate moves out of the installation slot. At this time, according to the collision situation of the rotating plate, the rotating plate can be flipped and replaced, and the large plate is designed to be a plurality of replaceable small plates, and the small plates can be flipped, so that the effect of quick replacement is achieved, and the cost of damage can be effectively reduced.

[0020] Secondly, the present invention sets a limiting unit, so that when the rotating plate to be replaced is installed, the fixed shaft squeezes the inclined piece to drive the movable block to move, and the movement of the movable block drives the telescopic spring to be compressed and elastically deformed. When the fixed shaft contacts the bottom of the slot, the telescopic spring drives the movable block and the slot to move, so that the slot enters one of the limiting slots, thereby improving the stability of the rotating plate.

[0021] Third: The present invention provides a buffer unit. When the rotating plate is hit, the rotating plate drives the buffer plate to move, and the buffer plate drives the telescopic rod to contract, while squeezing the first buffer spring to compress and elastically deform. The movement of the buffer plate drives the mounting seat, the L-shaped block and the fixed column to move, so that when the fixed column moves to the first protrusion, the second protrusion and the third protrusion, it squeezes the fixed column and the L-shaped block to move upward. The movement of the L-shaped block drives the connecting spring to compress and elastically deform. Since the slopes of the first protrusion, the second protrusion and the third protrusion increase successively, the damping effect gradually increases, thereby improving the buffering effect.

[0022] Fourthly, the present invention arranges a buffer mechanism. When the fixed column moves on the third protrusion, the L-shaped block moves upward to drive the movable column to move. The movement of the movable column drives the installation spring to compress and elastically deform, thereby triggering the pressure sensor. The pressure sensor sends a pressure signal to the controller via a wireless signal, so that the controller activates the alarm to sound an alarm. At the same time, the buffer plate contacts the fixed bar and drives the fixed bar to squeeze the second buffer spring to compress and elastically deform. This achieves buffer protection when the impact force is small, and an alarm is sounded when the impact force is large, triggering secondary protection at the same time, effectively reducing the incidents of damage to the elevator car wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the buffer plate and the rotating plate in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the disassembly and assembly mechanism and the buffer mechanism in the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the conveniently disassembled unit in the present invention;

[0028] Figure 5 It is a schematic diagram of the internal cross-sectional plan structure of the fixed rod and the movable rod in the present invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional plan structure of the magnetic block, the extrusion block and the L-shaped sliding block in the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the buffer unit in the present invention;

[0031] Figure 8 It is a schematic diagram of the internal cross-sectional plan structure of the mounting seat and the fixing seat in the present invention;

[0032] Fig. 9 It is a schematic diagram of the cross-sectional plan structure of the buffer plate and the L-shaped plate in the present invention.

[0033] Reference numerals:

[0034] 1. Car; 11. Buffer plate; 12. Telescopic rod; 13. First buffer spring; 14. Mounting slot; 15. Fixed rod; 16. Movable rod; 17. Extrusion spring; 18. Slot; 19. Fixed shaft; 110. Rotating plate; 2. Latch; 21. L-shaped slider; 22. Return spring; 23. Fixed sleeve block; 24. Slot; 25. Extrusion block; 26. Magnetic block; 27. Shrapnel; 28. Fixed slot; 3. Movable block; 31. Telescopic spring ; 32. Bevel plate; 33. Block; 4. Mounting seat; 41. Connecting spring; 42. L-shaped block; 43. Fixed column; 44. Fixed block; 45. First protrusion; 46. Second protrusion; 47. Third protrusion; 48. Fixed seat; 49. Movable column; 410. Mounting spring; 411. Pressure sensor; 5. Controller; 6. Alarm; 7. L-shaped plate; 71. Fixed spring; 8. Sliding rod; 81. Fixed bar; 82. Second buffer spring. DETAILED DESCRIPTION

[0035] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention provides a cargo elevator car wall anti-collision device through improvement. The technical solution of the present invention is:

[0037] like Figures 1 to 9 As shown, an embodiment of the present invention provides a cargo elevator car wall anti-collision device, including a car 1, three inner walls of the car 1 are provided with buffer plates 11, three buffer plates 11 are provided with a plurality of mounting grooves 14, one side of the three buffer plates 11 is provided with a rotating plate 110, and the plurality of rotating plates 110 are respectively adapted to the plurality of mounting grooves 14, and further comprising:

[0038] A disassembly and assembly mechanism, which is located on the buffer plate 11;

[0039] A buffer mechanism, the buffer mechanism is located on the car 1;

[0040] The disassembly and assembly mechanism includes a convenient disassembly unit and a limiting unit. The convenient disassembly unit includes a plurality of pairs of fixed rods 15 respectively fixedly connected to the three buffer plates 11. Each pair of fixed rods 15 is slidably connected to a movable rod 16. One end of the two movable rods 16 is provided with a slot 18. Both sides of the rotating plate 110 are fixedly connected to fixed shafts 19. The two fixed shafts 19 are respectively located in the two slots 18. The two fixed rods 15 and the two movable rods 16 are commonly fixedly connected to an extrusion spring 17. The two fixed rods 15 are slidably connected to a latch 2. The two latches 2 The top of each of the two movable rods 16 is fixedly connected with an L-shaped slider 21, and the two fixed rods 15 are fixedly connected with a fixed sleeve block 23. The two L-shaped sliders 21 are slidably connected to the two fixed sleeve blocks 23. The tops of the two movable rods 16 are provided with slots 24, and the two slots 24 are respectively adapted to the two latches 2. The two latches 2 are sleeved with return springs 22, and the two ends of the two return springs 22 are respectively fixedly connected to the fixed rod 15 and the L-shaped slider 21. The three buffer plates 11 are provided with multiple pairs of fixed grooves 28, and a pair of fixed grooves 28 are slidably connected. The two extrusion blocks 25 are respectively located under the two L-shaped sliders 21. One end of the two extrusion blocks 25 is fixedly connected to a magnetic block 26. The two magnetic blocks 26 are respectively slidably connected to the two fixed grooves 28. The two magnetic blocks 26 are fixedly connected to a spring sheet 27. One end of the two spring sheets 27 is fixedly connected to the buffer plate 11. By setting the convenient detachable unit and utilizing the principle of magnet repulsion of like poles, the position of the magnet facing the magnetic block 26 is attached to the buffer plate 11, so that the magnet drives the magnetic block 26 and the extrusion block 25 to move. The movement of block 26 drives the spring piece 27 to be compressed and elastically deformed, and the extrusion block 25 drives the L-shaped slider 21 and the pin 2 to move upward, so that the pin 2 is away from the slot 24, so that the extrusion spring 17 drives the movable rod 16 and the rotating plate 110 to move, so that the rotating plate 110 moves out of the installation slot 14. At this time, according to the collision situation of the rotating plate 110, the rotating plate 110 can be turned over and replaced, and the large plate is designed into multiple replaceable small plates, and the small plates can be turned over, so as to achieve the effect of quick replacement and effectively reduce the cost of damage.

[0041] Furthermore, the limiting unit includes movable grooves respectively opened on the inner walls of one side of the plurality of slots 18, wherein a movable block 3 is slidably connected in the movable groove, one end of the movable block 3 is in contact with the fixed shaft 19, a telescopic spring 31 is provided in the movable groove, both ends of the telescopic spring 31 are respectively fixedly connected to the movable block 3 and the movable rod 16, and an inclined piece 32 is fixedly connected to the top of one end of the movable block 3; through the setting of the limiting unit, when the rotating plate 110 to be replaced is installed, the fixed shaft 19 squeezes the inclined piece 32 to drive the movable block 3 to move, and the movement of the movable block 3 drives the telescopic spring 31 to be compressed and elastically deformed, and when the fixed shaft 19 contacts the bottom of the slot 18, the telescopic spring 31 drives the movable block 3 to move, so that the movable block 3 fits with the fixed shaft 19, thereby realizing the limiting of the rotating plate 110.

[0042] Furthermore, one end of the movable block 3 is fixedly connected with a clamping block 33, and two limiting grooves are provided in the circumferential direction of the fixed shaft 19, and the clamping block 33 is located in one of the limiting grooves; through the setting of the clamping block 33, with the cooperation of the clamping block 33 and the limiting groove, the stability of the rotating plate 110 is improved.

[0043] Furthermore, the buffer mechanism includes a buffer unit and an alarm unit. The buffer unit includes four telescopic rods 12 respectively fixedly connected to the three buffer plates 11, one ends of the four telescopic rods 12 are fixedly connected to the car 1, the four telescopic rods 12 are sleeved with a first buffer spring 13, the two ends of the first buffer spring 13 are respectively fixedly connected to the car 1 and the buffer plate 11, the three buffer plates 11 are fixedly connected with four mounting seats 4, the bottom ends of the four mounting seats 4 are slidably connected with L-shaped blocks 42, the L-shaped blocks 42 and the mounting seats 4 are jointly fixedly connected with a connecting spring 41, one end of every two L-shaped blocks 42 are jointly fixedly connected with a fixing column 43, the inner walls of the three sides of the car 1 are fixedly connected with two fixing blocks 44, the tops of the two fixing blocks 44 are fixedly connected with a first protrusion 45, a second protrusion 46 and a third protrusion 47. There are three protrusions 47, and two fixed columns 43 are in contact with the tops of the two fixed blocks 44 respectively; through the setting of the buffer unit, when the rotating plate 110 is hit, the rotating plate 110 drives the buffer plate 11 to move, and the buffer plate 11 drives the telescopic rod 12 to shrink, and at the same time squeezes the first buffer spring 13 to compress and elastically deform, and the movement of the buffer plate 11 drives the mounting seat 4, the L-shaped block 42 and the fixed column 43 to move, so that when the fixed column 43 moves to the first protrusion 45, the second protrusion 46 and the third protrusion 47, it will squeeze the fixed column 43 and the L-shaped block 42 to move upward, and the movement of the L-shaped block 42 drives the connecting spring 41 to be compressed and elastically deformed. Since the slopes of the first protrusion 45, the second protrusion 46 and the third protrusion 47 increase successively, the damping effect gradually increases, thereby improving the buffering effect.

[0044] Furthermore, the alarm unit includes a fixed seat 48 respectively fixedly connected to the inner walls of the three sides of the car 1, a movable column 49 is slidably connected to the fixed seat 48, a pressure sensor 411 is fixedly connected to the fixed seat 48, a mounting spring 410 is fixedly connected to the pressure sensor 411 and the movable column 49, a controller 5 is fixedly connected to the car 1, and alarms 6 are fixedly connected to the inner walls of the three sides of the car 1, and the three alarms 6 are electrically connected to the controller 5; through the setting of the alarm unit, when the fixed column 43 moves on the third protrusion 47, the L-shaped block 42 moves upward to drive the movable column 49 to move, and the movement of the movable column 49 drives the mounting spring 410 to be compressed and elastically deformed, thereby triggering the pressure sensor 411, so that the pressure sensor 411 sends the pressure signal to the controller 5 via a wireless signal, so that the controller 5 starts the alarm 6 to alarm, which serves as a warning.

[0045] Furthermore, the inner walls on three sides of the car 1 are slidably connected with four sliding rods 8, and a fixing bar 81 is fixedly connected to every two sliding rods 8. A second buffer spring 82 is sleeved on the four sliding rods 8, and the two ends of the second buffer spring 82 are fixedly connected to the car 1 and the fixing bar 81 respectively; through the setting of the second buffer spring 82, when the alarm is sounded, the buffer plate 11 contacts the fixing bar 81, and drives the fixing bar 81 to squeeze the second buffer spring 82 to compress and elastically deform, thereby realizing secondary buffering, improving the protection effect of the elevator car wall, and effectively reducing the incidents of damage to the elevator car wall.

[0046] Furthermore, two adjacent buffer plates 11 are slidably connected with an L-shaped plate 7, and both ends of the two L-shaped plates 7 are fixedly connected with a group of fixed springs 71, wherein one end of the two groups of fixed springs 71 are respectively fixedly connected to the two ends of one of the buffer plates 11, and one end of the other two groups of fixed springs 71 are respectively fixedly connected to one end of the other two buffer plates 11; through the setting of the L-shaped plate 7, with the cooperation of the L-shaped plate 7 and the fixed springs 71, the three-sided protective plates of the car 1 form a whole and do not affect each other.

[0047] Specific implementation steps: push the rotating plate 110 into the installation slot 14, the movement of the rotating plate 110 drives the movable rod 16 to move through the fixed shaft 19, and the movable rod 16 moves to resist the extrusion spring 17 to elastically deform. When the slot 24 moves to the bottom of the latch 2, the rotating plate 110 enters the installation slot 14. Since the reset spring 22 is in a stretched state, the reset spring 22 drives the latch 2 to reset and enter the slot 24, so that the rotating plate 110 can be fixed. When the rotating plate 110 is collided, the rotating plate 110 drives the buffer plate 11 to move, and the buffer plate 11 drives the telescopic rod 12 to contract, and at the same time squeezes the first buffer spring 13 to compress and elastically deform. The movement of the buffer plate 11 drives the mounting seat 4, the L-shaped block 42 and the fixed column 43 to move, so that when the fixed column 43 moves to the first protrusion 45, the second protrusion 46 and the third protrusion 47, it will squeeze the fixed column 43 and the L-shaped block 42 to move upward. The movement of the L-shaped block 42 drives the connecting spring 41 to be compressed and elastically deformed. Since the slopes of the first protrusion 45, the second protrusion 46 and the third protrusion 47 increase successively, the damping effect gradually increases, thereby improving the buffering effect. When the fixed column 43 moves on the third protrusion 47, the L-shaped block 42 moves upward to drive the movable column 49 to move. The movement of the movable column 49 drives the installation spring 410 to be compressed and elastically deformed, thereby triggering the pressure sensor 411, so that the pressure sensor 411 sends a pressure signal to the controller 5 via a wireless signal, so that the controller 5 activates the alarm 6 to alarm. At the same time, the buffer plate 11 contacts the fixed bar 81 and drives the fixed bar 81 to squeeze the second buffer spring 82 to be compressed and elastically deformed, so that when the impact force is small, buffer protection can be performed. When the impact force is large, an alarm will be sounded and secondary protection will be triggered at the same time, so that the incident of damage to the elevator car wall is effectively reduced.When the outer surface of the rotating plate 110 is deformed by collision, the principle of magnet repulsion is used to attach the magnet to the buffer plate 11 at the position of the magnetic block 26, so that the magnet drives the magnetic block 26 and the extrusion block 25 to move, and the movement of the magnetic block 26 drives the spring 27 to be compressed and elastically deformed, and the extrusion block 25 drives the L-shaped slider 21 and the latch 2 to move upward, so that the latch 2 is away from the slot 24, so that the extrusion spring 17 drives the movable rod 16 and the rotating plate 110 to move, so that the rotating plate 110 moves out of the installation slot 14, and then the rotating plate 110 is turned 180°, so that the block 33 enters another limit slot on the fixed shaft 19, so that the deformation surface of the rotating plate 110 can be further modified. When the rotating plate 110 is replaced, when both surfaces are hit, the rotating plate 110 is pulled to drive the fixed shaft 19 to move out of the card slot 18. When the rotating plate 110 to be replaced is installed, the fixed shaft 19 squeezes the inclined piece 32 to drive the movable block 3 to move. The movable block 3 moves and drives the telescopic spring 31 to compress and elastically deform. When the fixed shaft 19 contacts the bottom of the card slot 18, the telescopic spring 31 drives the movable block 3 and the card block 33 to move, so that the card block 33 enters one of the limit grooves, and then the rotating plate 110 is pushed into the installation groove 14. The large plate is designed into multiple replaceable small plates, and the small plates can be flipped, so that the effect of quick replacement is achieved, and the cost of damage can be effectively reduced. ;

[0048] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cargo elevator car wall anti-collision device, comprising a car (1), characterized in that: The inner walls of the three sides of the car (1) are each provided with a buffer plate (11), a plurality of mounting grooves (14) are each opened on the three buffer plates (11), a rotating plate (110) is each provided on one side of the three buffer plates (11), and the plurality of rotating plates (110) are respectively adapted to the plurality of mounting grooves (14), and further comprising: a disassembly and assembly mechanism, the disassembly and assembly mechanism being located on the buffer plate (11); A buffer mechanism, the buffer mechanism being located on the car (1); The disassembly and assembly mechanism comprises a convenient disassembly unit and a limiting unit. The convenient disassembly unit comprises a plurality of pairs of fixed rods (15) respectively fixedly connected to the three buffer plates (11). Each pair of the fixed rods (15) is slidably connected to a movable rod (16). One end of each of the two movable rods (16) is provided with a clamping groove (18). Both sides of the rotating plate (110) are fixedly connected to fixed shafts (19). The two fixed shafts (19) are respectively located in the two clamping grooves (18). The two fixed rods (15) and the two movable rods (16) are commonly fixedly connected to an extrusion spring (17). A latch (2) is slidably connected, the top ends of the two latches (2) are fixedly connected with an L-shaped slider (21), the two fixed rods (15) are fixedly connected with a fixed sleeve (23), the two L-shaped sliders (21) are slidably connected to the two fixed sleeves (23), the tops of the two movable rods (16) are provided with slots (24), the two slots (24) are respectively matched with the two latches (2), the two latches (2) are sleeved with a return spring (22), the two ends of the two return springs (22) are respectively fixedly connected with the fixed rod (15) and the L-shaped slider (21).

2. A cargo elevator car wall anti-collision device according to claim 1, characterized in that: A plurality of pairs of fixed grooves (28) are provided on the three buffer plates (11), and a pair of the fixed grooves (28) is slidably connected with an extrusion block (25), and the two extrusion blocks (25) are respectively located below the two L-shaped sliding blocks (21), and one end of the two extrusion blocks (25) is fixedly connected with a magnetic block (26), and the two magnetic blocks (26) are respectively slidably connected to the two fixed grooves (28), and the two magnetic blocks (26) are fixedly connected with a spring sheet (27), and one end of the two spring sheets (27) is fixedly connected to the buffer plate (11).

3. A cargo elevator car wall anti-collision device according to claim 2, characterized in that: The limiting unit comprises movable grooves respectively opened on the inner wall of one side of the plurality of the card slots (18), a movable block (3) is slidably connected in the movable groove, one end of the movable block (3) is in contact with the fixed shaft (19), a telescopic spring (31) is provided in the movable groove, two ends of the telescopic spring (31) are respectively fixedly connected to the movable block (3) and the movable rod (16), and an inclined plate (32) is fixedly connected to the top of one end of the movable block (3).

4. A cargo elevator car wall anti-collision device according to claim 3, characterized in that: One end of the movable block (3) is fixedly connected to a clamping block (33); two limiting grooves are provided in the circumferential direction of the fixed shaft (19); and the clamping block (33) is located in one of the limiting grooves.

5. The anti-collision device for a freight elevator car wall according to claim 1, characterized in that: The buffer mechanism comprises a buffer unit and an alarm unit, the buffer unit comprises four telescopic rods (12) respectively fixedly connected to the three buffer plates (11), one end of the four telescopic rods (12) is fixedly connected to the car (1), the four telescopic rods (12) are sleeved with a first buffer spring (13), the two ends of the first buffer spring (13) are respectively fixedly connected to the car (1) and the buffer plate (11), the three buffer plates (11) are fixedly connected to four mounting seats (4), the four mounting seats (4) The bottom ends of the elevator car (1) are slidably connected to an L-shaped block (42); a connecting spring (41) is fixedly connected to the L-shaped block (42) and the mounting seat (4); one end of each of the two L-shaped blocks (42) is fixedly connected to a fixing column (43); the inner walls of the three sides of the elevator car (1) are fixedly connected to two fixing blocks (44); the tops of the two fixing blocks (44) are fixedly connected to a first protrusion (45), a second protrusion (46) and a third protrusion (47); and the two fixing columns (43) are in contact with the tops of the two fixing blocks (44) respectively.

6. A cargo elevator car wall anti-collision device according to claim 5, characterized in that: The alarm unit comprises a fixed seat (48) respectively fixedly connected to the inner walls of three sides of the car (1); a movable column (49) is slidably connected to the fixed seat (48); a pressure sensor (411) is fixedly connected to the fixed seat (48); and a mounting spring (410) is fixedly connected to both the pressure sensor (411) and the movable column (49).

7. A cargo elevator car wall anti-collision device according to claim 6, characterized in that: The car (1) is fixedly connected to a controller (5), and the inner walls on three sides of the car (1) are fixedly connected to alarms (6), and the three alarms (6) are electrically connected to the controller (5).

8. The anti-collision device for a freight elevator car wall according to claim 7, characterized in that: The inner walls of the three sides of the car (1) are slidably connected to four sliding rods (8), and each two of the sliding rods (8) are fixedly connected to a fixing strip (81), and the four sliding rods (8) are sleeved with a second buffer spring (82), and the two ends of the second buffer spring (82) are fixedly connected to the car (1) and the fixing strip (81) respectively.

9. The anti-collision device for a freight elevator car wall according to claim 8, characterized in that: Two adjacent buffer plates (11) are slidably connected to an L-shaped plate (7), and both ends of the two L-shaped plates (7) are fixedly connected to a group of fixing springs (71), wherein one end of the two groups of fixing springs (71) is respectively fixedly connected to the two ends of one of the buffer plates (11), and one end of the other two groups of fixing springs (71) is respectively fixedly connected to one end of the other two buffer plates (11).

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