Freight elevator car

Abstract

The utility model discloses a freight elevator car which comprises a car main body, a movable plate and a reference body, a loading mechanism is arranged on the car main body, a dustproof mechanism is arranged on the loading mechanism, and the movable plate is arranged on the reference body. According to the freight elevator car provided by the utility model, the Z-shaped rod can move towards the outside of the car main body by controlling the servo motor, then the Z-shaped rod can be inserted between the two corresponding guide blocks, and the position of the movable plate can be corrected along with the movement of the Z-shaped rod towards the inside of the two guide blocks; a Z-shaped rod penetrates through a guide block to extrude a baffle, then the Z-shaped rod penetrates through the baffle, then the Z-shaped rod can be controlled to move towards the interior of the lift car body, then the moving plate can be hooked towards the interior of the lift car body through the baffle, an operator can be assisted in pushing the moving plate into the lift car body, and the safety of the lift car is improved. And physical output of an operator in the process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator car technical field especially relates to a kind of freight elevator cars. BACKGROUND

[0002] Freight elevator is a kind of vertical transport equipment, for conveying goods between different floors in building or between buildings. It is composed of one or more electric drive mechanism, car, guide rail system, control system and safety device. The elevator car is an important part of elevator, for conveying passengers or goods up and down floor. It is a closed box.

[0003] As Chinese utility model patent (CN221165521U) discloses a kind of freight elevator cars, wherein record is:“Be equipped with driving assembly, can effectively be driven by driving assembly and be placed on the second support plate above sliding plate, and horizontally slide out to car door, facilitate staff can conveniently place goods on placing plate, and through the driving assembly driving placing plate and the goods placed on placing plate enter car body”, also record is:“The elevator car in actual use, when needing to carry some larger goods to elevator, possibly because of the limitation of elevator door and car interior space, so that staff is difficult to conveniently move goods to car” Technical problem.

[0004] Comprehensive above, it can be known from the car body in prior art that placing plate can be extended and retracted, so that staff can conveniently move goods to car, but this way has following technical problems: but there are actually some goods placed on trolley need to be transferred to car for vertical transport, and there are bumping conditions due to trolley and car mouth misalignment when operator pushes trolley to car, there are also conditions of operator physical consumption due to trolley is pushed by manpower, for this, the present application proposes a kind of freight elevator car, to solve the technical problems mentioned in the above patent, provide a new technical scheme. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a freight elevator car to solve the above technical problems.

[0006] To solve the above technical problems, the utility model adopts the technical scheme as follows:

[0007] A freight elevator car is applied to vertical transportation of goods.

[0008] The freight elevator car specifically comprises:

[0009] A car body, a moving plate and a reference body, the car body is provided with a loading mechanism, the loading mechanism is provided with a dustproof mechanism, the reference body is provided with the moving plate;

[0010] The loading mechanism comprises a fixed box, a servo motor, a traction assembly, a pulling assembly, a blocking assembly and a blocking assembly, the inner wall lower surface of the car body is fixedly connected with the fixed box, and the inner wall lower surface of the car body and located in the fixed box is fixedly installed with the servo motor.

[0011] As a preferred embodiment of the freight elevator car provided by the utility model, the traction assembly comprises a threaded rod, the inner wall of the fixed box is rotatably connected with the threaded rod, the threaded rod is fixedly connected with the output end of the servo motor, the inner wall of the fixed box and located on the front and back sides of the threaded rod is fixedly connected with a fixed rod, the outer thread of the threaded rod is connected with a moving block, the moving block is slidably connected with the outer wall of the two fixed rods, the top of the moving block is fixedly connected with two Z-shaped rods, and the two Z-shaped rods are slidably connected with the inner wall of the fixed box.

[0012] As a preferred embodiment of the freight elevator car provided by the utility model, the pulling assembly comprises a U-shaped handrail, the top of the moving plate is fixedly connected with the U-shaped handrail, the inner wall of the moving plate is slidably connected with a triangular column, the inner wall of the U-shaped handrail is slidably connected with a sliding rod, the outer wall of the triangular column is fixedly connected with two traction ropes, the bottom of the sliding rod is fixedly connected with the two traction ropes away from the triangular column, the inner wall of the moving plate is rotatably connected with two rollers, the rollers are rotatably connected to the outer wall of the traction ropes, the outer part of the two traction ropes is sleeved with a first spring, and the two ends of the first spring are fixedly connected to the inner wall of the moving plate and the outer wall of the triangular column.

[0013] As a preferred embodiment of the freight elevator car provided by the utility model, the resisting assembly comprises guide blocks, the bottom of the moving plate is fixedly connected with a plurality of guide blocks, the bottom of the moving plate is fixedly connected with a support shell, the inner wall of the support shell is rotatably connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a baffle, the outer wall of the rotating shaft and close to the two ends are fixedly connected with fixed rings respectively, the outer part of the rotating shaft and located on the side away from each other of the two fixed rings is sleeved with a torsion spring respectively, the two ends of the torsion spring are fixedly connected to the outer wall of the fixed ring and the inner wall of the support shell, the front and back sides of the baffle are fixedly connected with T-shaped rods respectively, and the two T-shaped rods are slidably connected to the inner wall of the support shell.

[0014] As a preferred embodiment of the freight elevator car provided by the utility model, the resisting assembly comprises guide blocks, the bottom of the moving plate is fixedly connected with a plurality of guide blocks, the bottom of the moving plate is fixedly connected with a support shell, the inner wall of the support shell is rotatably connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a baffle, the outer wall of the rotating shaft and close to the two ends are fixedly connected with fixed rings respectively, the outer part of the rotating shaft and located on the side away from each other of the two fixed rings is sleeved with a torsion spring respectively, the two ends of the torsion spring are fixedly connected to the outer wall of the fixed ring and the inner wall of the support shell, the front and back sides of the baffle are fixedly connected with T-shaped rods respectively, and the two T-shaped rods are slidably connected to the inner wall of the support shell.

[0015] As a preferred embodiment of the freight elevator car provided by the utility model, the dustproof mechanism comprises a rubber telescopic sheet, the two ends of the rubber telescopic sheet are fixedly connected with mounting plates respectively, the outer wall of the Z-shaped rod and the inner wall of the fixed box are detachably connected by bolts respectively, the inner wall lower surface of the fixed box and located on the front and back sides of the rubber telescopic sheet are detachably connected with fixed rails by bolts respectively, the front and back sides of the rubber telescopic sheet are fixedly connected with a plurality of L-shaped sliding blocks respectively, and the inner wall of the fixed rail is slidably connected with the plurality of L-shaped sliding blocks.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The freight elevator car provided by the utility model can make the Z-shaped rod move to the outside of the car main body through the control of the servo motor, and then the Z-shaped rod can be inserted between the two guide blocks, and the position of the moving plate can be corrected through the movement of the Z-shaped rod to the inside of the two guide blocks, so that the impact between the moving plate and the car main body caused by the misalignment of the moving plate and the opening on the car main body when the moving plate is pushed into the car main body is reduced, the deformation and damage of the moving plate or the car main body are avoided, the stability of the device is improved, the baffle can be extruded through the movement of the Z-shaped rod through the guide block, then the Z-shaped rod passes through the baffle, the movement of the Z-shaped rod to the inside of the car main body can be controlled, the moving plate can be hooked into the car main body through the baffle, the operator can push the moving plate into the car main body, the physical consumption of the operator is reduced, and the practicability of the device is improved.

[0018] The freight elevator car provided by the utility model can make the Z-shaped rod move to the outside of the car main body through the control of the servo motor, and then the Z-shaped rod can be inserted between the two guide blocks, and the position of the moving plate can be corrected through the movement of the Z-shaped rod to the inside of the two guide blocks, so that the impact between the moving plate and the car main body caused by the misalignment of the moving plate and the opening on the car main body when the moving plate is pushed into the car main body is reduced, the deformation and damage of the moving plate or the car main body are avoided, the stability of the device is improved, the baffle can be extruded through the movement of the Z-shaped rod through the guide block, then the Z-shaped rod passes through the baffle, the movement of the Z-shaped rod to the inside of the car main body can be controlled, the moving plate can be hooked into the car main body through the baffle, the operator can push the moving plate into the car main body, the physical consumption of the operator is reduced, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the scheme in the utility model, the drawings needed in the embodiment description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The whole structure schematic diagram of the freight elevator car provided by the utility model is shown in the figure.

[0021] Figure 2 The car main body and the internal structure of the fixed box of the freight elevator car provided by the utility model are shown in the figure.

[0022] Figure 3 The internal structure schematic diagram of the moving plate of the freight elevator car provided by the utility model is shown in the figure.

[0023] Figure 4 The internal structure schematic diagram of another moving plate of the freight elevator car provided by the utility model is shown in the figure.

[0024] Figure 5 The internal structure schematic diagram of the support shell of the freight elevator car provided by the utility model is shown in the figure.

[0025] Figure 6The utility model provides a fixed box internal structure schematic diagram of freight elevator car provides.

[0026] Figure 7 The utility model provides a fixed box internal structure schematic diagram of freight elevator car provides Figure 6 The utility model provides an enlarged structure schematic diagram of A.

[0027] The figure mark explanation is as follows:

[0028] 1, car main body, 2, loading mechanism, 3, moving plate, 4, reference body, 5, dustproof mechanism, 6, fixed box, 7, servo motor, 8, threaded rod, 9, fixed rod, 10, moving block, 11, Z-shaped rod, 12, U-shaped handrail, 13, triangular column, 14, traction rope, 15, sliding rod, 16, roller, 17, first spring, 18, guide block, 19, support shell, 20, T-shaped plate, 21, limiting column, 22, second spring, 23, rotating shaft, 24, baffle, 25, fixed ring, 26, torsional spring, 27, T-shaped rod, 28, rubber expansion piece, 29, mounting plate, 30, fixed rail, 31, L-shaped sliding block. DETAILED DESCRIPTION

[0029] In order to make the personnel in the technical field better understand the utility model scheme, below will combine the drawings in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor should belong to the scope of the utility model protection.

[0030] As described in the background, but actually there are some goods placed on the trolley need to be transferred to the car for vertical transportation, and the operator exists when pushing the trolley into the car due to the misalignment of the trolley and the car door, resulting in the situation of knocking, and the operator exists the situation of physical consumption due to the trolley.

[0031] In order to solve this technical problem, the utility model provides a kind of freight elevator car, which is applied to vertical transportation of goods.

[0032] Specifically, please refer to Figures 1-2 , freight elevator car specifically includes:

[0033] Car main body 1, moving plate 3 and reference body 4, car main body 1 is provided with loading mechanism 2, loading mechanism 2 is provided with dustproof mechanism 5, reference body 4 is provided with moving plate 3;

[0034] The upper loading mechanism 2 comprises a fixed box 6, a servo motor 7, a traction assembly, a pulling assembly, a resisting assembly and a blocking assembly, the inner wall lower surface of the car body 1 is fixedly connected with the fixed box 6, and the inner wall lower surface of the car body 1 and located in the fixed box 6 is fixedly installed with the servo motor 7.

[0035] The cargo elevator car provided by the utility model can make the Z-shaped rod 11 move to the outside of the car body 1 by controlling the servo motor 7, and then the Z-shaped rod 11 can be inserted between the corresponding two guide blocks 18, and the position of the moving plate 3 can be corrected by the movement of the Z-shaped rod 11 to the inside of the two guide blocks 18, so that the impact and collision between the moving plate 3 and the car body 1 caused by the fact that the moving plate 3 is not aligned with the opening on the car body 1 when the moving plate 3 is pushed into the car body 1 is reduced, the deformation and damage of the moving plate 3 or the car body 1 are avoided, the stability of the device is improved, the baffle 24 can be extruded by the Z-shaped rod 11 passing through the guide block 18, then the Z-shaped rod 11 passes through the baffle 24, the Z-shaped rod 11 can be controlled to move to the inside of the car body 1, and then the moving plate 3 can be hooked into the car body 1 through the baffle 24, the operator can push the moving plate 3 into the car body 1, the physical consumption of the operator in the process is reduced, and the practicability of the device is improved.

[0036] In order for the personnel in the technical field to better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0037] Embodiment 1:

[0038] Please refer to Figures 1-5 A cargo elevator car comprises:

[0039] The car body 1, the moving plate 3 and the reference body 4, the upper loading mechanism 2 is arranged on the car body 1, the dustproof mechanism 5 is arranged on the upper loading mechanism 2, the moving plate 3 is arranged on the reference body 4, universal brake wheels are fixedly installed at the bottom of the moving plate 3 and close to the four corners respectively;

[0040] The upper loading mechanism 2 comprises a fixed box 6, a servo motor 7, a traction assembly, a pulling assembly, a resisting assembly and a blocking assembly, the inner wall lower surface of the car body 1 is fixedly connected with the fixed box 6, and the inner wall lower surface of the car body 1 and located in the fixed box 6 is fixedly installed with the servo motor 7, the upper loading mechanism 2 can assist the operator to place the moving plate 3 in alignment with the car body 1, and assist the operator to push the moving plate 3 into the car body 1, when it is required to move the moving plate 3 into the car body 1 or to move the moving plate 3 out of the car body 1, the top of the fixed box 6 is flush with the top of the reference body 4.

[0041] The traction assembly comprises a threaded rod 8, the inner wall of the fixed box 6 is rotatably connected with the threaded rod 8, the threaded rod 8 is fixedly connected to the output end of the servo motor 7, the inner wall of the fixed box 6 and located on the front and back of the threaded rod 8 is fixedly connected with a fixed rod 9, the outer part of the threaded rod 8 is threadedly connected with a moving block 10, the moving block 10 is slidably connected to the outer wall of the two fixed rods 9, the top of the moving block 10 is fixedly connected with two Z-shaped rods 11, the two Z-shaped rods 11 are slidably connected to the inner wall of the fixed box 6, and the traction assembly can pull the moving plate 3 into the car body 1.

[0042] The pulling assembly comprises a U-shaped handrail 12, the top of the moving plate 3 is fixedly connected with the U-shaped handrail 12, the inner wall of the moving plate 3 is slidably connected with a triangular column 13, the inner wall of the U-shaped handrail 12 is slidably connected with a sliding rod 15, the outer wall of the triangular column 13 is fixedly connected with two traction ropes 14, the ends of the two traction ropes 14 away from the triangular column 13 are fixedly connected to the bottom of the sliding rod 15, the inner wall of the moving plate 3 is rotatably connected with two rollers 16, the rollers 16 are rotatably connected to the outer wall of the traction ropes 14, the outer part of the two traction ropes 14 is sleeved with a first spring 17, and the two ends of the first spring 17 are fixedly connected to the inner wall of the moving plate 3 and the outer wall of the triangular column 13, respectively. The pulling assembly can make the operator not need to bend over to make the triangular column 13 slide in the moving plate 3, so as to meet the adjustment needs of the moving plate 3, and the operator can adjust the position of the triangular column 13 without bending over, thereby reducing the waist fatigue caused by frequent operation of the operator.

[0043] The resistance assembly comprises a guide block 18, a plurality of guide blocks 18 are fixedly connected to the bottom of the moving plate 3, the bottom of the moving plate 3 is fixedly connected with a support shell 19, the inner wall of the support shell 19 is rotatably connected with a rotating shaft 23, the outer wall of the rotating shaft 23 is fixedly connected with a baffle 24, the outer wall of the rotating shaft 23 and close to the two ends is fixedly connected with a fixed ring 25, the outer part of the rotating shaft 23 and located on the side away from each other of the two fixed rings 25 is sleeved with a torsional spring 26, and the two ends of the torsional spring 26 are fixedly connected to the outer wall of the fixed ring 25 and the inner wall of the support shell 19, respectively. The front and back of the baffle 24 are fixedly connected with a T-shaped rod 27, and the two T-shaped rods 27 are slidably connected to the inner wall of the support shell 19. The resistance assembly can make the Z-shaped rod 11 pass through the baffle 24, and after the baffle 24 is reset to the vertical state, the Z-shaped rod 11 moves to the inside of the car body 1, hooks the baffle 24, and moves the moving plate 3 to the inside of the car body 1.

[0044] The blocking assembly comprises a T-shaped plate 20, the inner wall of the moving plate 3 is slidably connected with the T-shaped plate 20, the T-shaped plate 20 is slidably connected with the inner wall of the supporting shell 19, the inner wall of the T-shaped plate 20 is slidably connected with four limiting columns 21 respectively at four corners, the four limiting columns 21 are fixedly connected with the inner wall of the moving plate 3 respectively, the outer part of the four limiting columns 21 is sleeved with a second spring 22 respectively, and the two ends of the second spring 22 are fixedly connected with the outer wall of the T-shaped plate 20 and the inner wall of the moving plate 3 respectively. The blocking assembly can limit and release the rotation of the baffle 24 to the direction of the car body 1, limit the rotation of the baffle 24 to the direction of the car body 1, and make the Z-shaped rod 11 stably pass through the baffle 24 to hook the Z-shaped rod 11 to the inside of the car body 1, and release the rotation of the baffle 24 to the direction of the car body 1, so that the subsequent moving plate 3 can be conveniently separated from the car body 1.

[0045] Through the above structure design, the threaded rod 8 can be rotated by controlling the servo motor 7, and then the moving block 10 can be moved under the limitation of the two fixed rods 9, the rotation direction of the threaded rod 8 controlled by the servo motor 7 makes the Z-shaped rod 11 move to the outside of the car body 1, and then the Z-shaped rod 11 can be inserted between the corresponding two guide blocks 18, the position of the moving plate 3 can be corrected with the movement of the Z-shaped rod 11 to the inside of the two guide blocks 18, the baffle 24 can be extruded by the Z-shaped rod 11 passing through the guide block 18, the rotating shaft 23 can be rotated in the supporting shell 19, the T-shaped rod 27 can slide in the supporting shell 19, and the torsional spring 26 can be deformed, when the one end protrusion of the Z-shaped rod 11 located outside the car body 1 passes through the baffle 24, the rotating shaft 23 can be reversely rotated under the elastic force of the torsional spring 26, the baffle 24 is reset to the vertical state under the blocking of the T-shaped plate 20, then the Z-shaped rod 11 can be moved to the inside of the car body 1, and then the moving plate 3 can be hooked to the inside of the car body 1 through the baffle 24, which can assist the operator to push the moving plate 3 to the inside of the car body 1, when the car body 1 is moved to a suitable height, the moving plate 3 needs to be moved out of the car body 1, the operator pulls the sliding rod 15, the triangular column 13 can slide in the moving plate 3 through the traction rope 14, the first spring 17 is deformed, the T-shaped plate 20 can move upward under the elastic force of the corresponding second spring 22, the limitation of the rotation of the baffle 24 to the inside of the car body 1 is released, the moving plate 3 can be pulled to the outside of the car body 1, the baffle 24 can be reversely rotated under the blocking of the Z-shaped rod 11, and the moving plate 3 can be pulled out of the car body 1.

[0046] The electric appliance elements appearing in the text are all electrically connected with the control device and the power supply, the control mode of the utility model is controlled through the control device, the control circuit of the control device can be realized through simple programming of the person skilled in the art, and the power supply is also the common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the control mode and the circuit connection of the utility model will not be explained in detail.

[0047] Embodiment 2

[0048] The freight elevator car provided in embodiment 1 is further optimized, specifically, as shown in Figures 6-7 The dustproof mechanism 5 includes a rubber expansion sheet 28, both ends of the rubber expansion sheet 28 are fixedly connected with mounting plates 29, the two mounting plates 29 are detachably connected to the outer wall of the Z-shaped rod 11 and the inner wall of the fixed box 6 through bolts respectively, the inner wall lower surface of the fixed box 6 and located at the front and rear sides of the rubber expansion sheet 28 are detachably connected with fixed rails 30 through bolts respectively, the front and rear sides of the rubber expansion sheet 28 are fixedly connected with a plurality of L-shaped sliding blocks 31, the plurality of L-shaped sliding blocks 31 are all slidingly connected to the inner wall of the fixed rail 30, the rubber expansion sheet 28 can block the opening of the Z-shaped rod 11 on the fixed box 6, reducing the situation that the dust or other small particle impurities outside the fixed box 6 fall into the inside of the fixed box 6.

[0049] Through the above structure design, when the Z-shaped rod 11 moves, the rubber expansion sheet 28 is stretched or compressed, in this process, the L-shaped sliding blocks 31 on the rubber expansion sheet 28 slide in the fixed rail 30, when the rubber expansion sheet 28 needs to be disassembled, cleaned or replaced, the bolts on the mounting plate 29 are removed, so that the mounting plate 29 is separated from the fixed box 6 or the mounting plate 29 and the Z-shaped rod 11, then the bolts on the fixed rail 30 are disassembled, so that the fixed rail 30 is separated from the fixed box 6, then the rubber expansion sheet 28 can be disassembled, then the good rubber expansion sheet 28 can be disassembled, the rubber expansion sheet 28 is installed between the Z-shaped rod 11 and the fixed box 6 through the mounting plate 29 and the bolt, then the L-shaped sliding block 31 is placed in the fixed rail 30, and the fixed rail 30 is installed in the fixed box 6 through the bolt.

[0050] Embodiment 3

[0051] Based on the freight elevator car provided in embodiment one, the application of the embodiment is as follows:

[0052] The pressure sensor is arranged at the bottom of the car body 1, and the controller is arranged in the car body 1. When the car body 1 is in contact with the ground or other objects are subjected to external pressure, the pressure sensor can sense the change. Once the sensor detects abnormal pressure or obstacles, the pressure sensor sends a signal to the controller. According to the received signal, if there are indeed obstacles or abnormal pressure, the controller sends a stop signal to the components driving the car body 1 to move, thereby stopping the movement of the car, preventing the car from continuing to descend, and reducing the possibility of the car body 1 or the obstacles being damaged due to the car body 1 pressing the obstacles at the bottom.

Claims

1. A freight elevator car, comprising a car body (1), a movable plate (3), and a reference body (4), characterized in that: The car body (1) is provided with a loading mechanism (2), the loading mechanism (2) is provided with a dustproof mechanism (5), and the reference body (4) is provided with a movable plate (3); The loading mechanism (2) includes a fixed box (6), a servo motor (7), a traction component, a pulling component, a blocking component, and a blocking component. The fixed box (6) is fixedly connected to the lower inner wall of the car body (1), and the servo motor (7) is fixedly installed on the lower inner wall of the car body (1) and inside the fixed box (6).

2. The freight elevator car according to claim 1, characterized in that, The traction assembly includes a threaded rod (8), the inner wall of the fixed box (6) is rotatably connected to the threaded rod (8), the threaded rod (8) is fixedly connected to the output end of the servo motor (7), the inner wall of the fixed box (6) and the front and rear sides of the threaded rod (8) are respectively fixedly connected to the fixed rod (9), the threaded rod (8) is threadedly connected to the outer wall of the threaded rod (8), the movable block (10) is slidably connected to the outer wall of the two fixed rods (9), the top of the movable block (10) is fixedly connected to two Z-shaped rods (11), and the two Z-shaped rods (11) are slidably connected to the inner wall of the fixed box (6).

3. The freight elevator car according to claim 2, characterized in that, The pulling assembly includes a U-shaped handrail (12), the top of the moving plate (3) is fixedly connected to the U-shaped handrail (12), the inner wall of the moving plate (3) is slidably connected to a triangular prism (13), the inner wall of the U-shaped handrail (12) is slidably connected to a sliding rod (15), the outer wall of the triangular prism (13) is fixedly connected to two traction ropes (14), the ends of the two traction ropes (14) away from the triangular prism (13) are fixedly connected to the bottom of the sliding rod (15), the inner wall of the moving plate (3) is rotatably connected to two rollers (16), the rollers (16) are rotatably connected to the outer wall of the traction ropes (14), and the outer sides of the two traction ropes (14) are each fitted with a first spring (17), the two ends of the first spring (17) are respectively fixedly connected to the inner wall of the moving plate (3) and the outer wall of the triangular prism (13).

4. The freight elevator car according to claim 1, characterized in that, The blocking assembly includes guide blocks (18). Multiple guide blocks (18) are fixedly connected to the bottom of the moving plate (3). A support shell (19) is fixedly connected to the bottom of the moving plate (3). A rotating shaft (23) is rotatably connected to the inner wall of the support shell (19). A baffle (24) is fixedly connected to the outer wall of the rotating shaft (23). Fixed rings (25) are fixedly connected to the outer wall of the rotating shaft (23) near both ends. Torsion springs (26) are respectively sleeved on the outside of the rotating shaft (23) and on the side away from each other of the two fixed rings (25). The two ends of the torsion springs (26) are fixedly connected to the outer wall of the fixed rings (25) and the inner wall of the support shell (19). T-shaped rods (27) are fixedly connected to the front and rear sides of the baffle (24). Both T-shaped rods (27) are slidably connected to the inner wall of the support shell (19).

5. The freight elevator car according to claim 4, characterized in that, The blocking assembly includes a T-shaped plate (20), the inner wall of the movable plate (3) is slidably connected to the T-shaped plate (20), the T-shaped plate (20) is slidably connected to the inner wall of the support shell (19), the inner wall of the T-shaped plate (20) and the four corners are respectively slidably connected to the limiting posts (21), the four limiting posts (21) are all fixedly connected to the inner wall of the movable plate (3), and the outer sides of the four limiting posts (21) are respectively fitted with second springs (22), the two ends of the second springs (22) are respectively fixedly connected to the outer wall of the T-shaped plate (20) and the inner wall of the movable plate (3).

6. The freight elevator car according to claim 5, characterized in that, The dustproof mechanism (5) includes a rubber telescopic sheet (28). The two ends of the rubber telescopic sheet (28) are respectively fixedly connected to mounting plates (29). The two mounting plates (29) are respectively detachably connected to the outer wall of the Z-shaped rod (11) and the inner wall of the fixed box (6) by bolts. The lower surface of the inner wall of the fixed box (6) and the front and rear sides of the rubber telescopic sheet (28) are respectively detachably connected to fixed rails (30) by bolts. The front and rear sides of the rubber telescopic sheet (28) are respectively fixedly connected to multiple L-shaped sliders (31). The multiple L-shaped sliders (31) are all slidably connected to the inner wall of the fixed rails (30).

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