A cargo protection device for elevator layer-changing operation

Abstract

The present application relates to a cargo protection device for the layer-changing operation of an elevator, which is arranged on the transfer conveyor line of the elevator and the docking conveyor lines on both sides of the elevator, and relates to the technical field of warehousing and logistics. It includes a clamping assembly, which is arranged on the transfer bracket of the transfer conveyor line and is used to clamp and protect the cargo on the transfer conveyor line; a docking assembly, which includes a docking block, and the side of the transfer bracket close to the docking conveyor line is provided with a mounting groove for the docking block to slide and place; a limiting assembly, which is arranged on the transfer bracket, and when the docking block slides into the mounting groove, the limiting assembly locks the clamping force of the clamping assembly by locking the position of the docking block; a sensing assembly, which is arranged on the transfer bracket and controls the working state of the limiting assembly based on the vertical distance between the transfer conveyor line and the docking conveyor line. The present application can reduce the risk of cargo falling during the layer-changing operation.

Description

Technical Field

[0001] The present application relates to the technical field of warehousing logistics, and in particular to a cargo protection device for elevator layer-changing operations. Background Art

[0002] In modern warehousing and logistics systems, goods often need to be transported on conveyor lines at different levels. Therefore, elevators are required to transfer goods to different levels through transfer conveyor lines installed on the elevators.

[0003] When the goods are lifted and lowered along the transfer conveyor line, a protective device needs to be set to prevent the goods from falling from the transfer conveyor line; the existing protective device includes two symmetrically arranged electric telescopic rods, the fixed ends of the electric telescopic rods are fixedly connected to the bracket of the transfer conveyor line, and the movable ends of the two electric telescopic rods are fixedly provided with protective plates; during the process of lifting and lowering the goods from layer to layer, the two electric telescopic rods extend, so that the two protective plates clamp the goods to prevent the goods from falling from the transfer conveyor line. When the transfer conveyor line is fully connected with the conveyor line of a certain layer, the electric telescopic rods retract to facilitate the layer-changing transportation of the goods.

[0004] During the protection process of the above-mentioned goods, when the power supply of the electric telescopic rod temporarily fails or the electric telescopic rod itself loses control, the protective plate cannot effectively clamp the goods, resulting in the risk of the goods still falling during the layer change process. Summary of the Invention

[0005] In order to reduce the risk of cargo falling during the layer-changing operation, the present application provides a cargo protection device for the layer-changing operation of an elevator.

[0006] The present application provides a cargo protection device for elevator floor-changing operation, which adopts the following technical solution:

[0007] A cargo protection device for elevator layer change operation is provided on the transfer conveying line of the elevator and the docking conveying lines on both sides of the elevator, comprising:

[0008] The clamping assembly is arranged on the transfer bracket of the transfer conveyor line and is used to clamp and protect the goods on the transfer conveyor line. The clamping assembly is provided with a clamping cavity with a variable space size. The clamping assembly includes an extrusion member. A fluid is preset in the clamping cavity. The extrusion member is used to squeeze the clamping cavity. When the space of the clamping cavity is large, the clamping assembly is in a clamping state. When the space of the clamping cavity is small, the clamping assembly is in a relaxed state.

[0009] The docking assembly is provided with a docking cavity of variable size and connected to the clamping cavity, and a fluid is preset in the docking cavity; the docking assembly includes a docking block, and a mounting groove for sliding the docking block is opened on the side of the transfer bracket close to the docking conveyor line. When the vertical distance between the docking block and the docking conveyor line is within a preset range, the docking block can be subjected to the extrusion external force applied by the docking conveyor line; the docking block can slide out of the mounting groove as the space of the docking cavity increases, and the docking block can slide into the mounting groove under the action of an external force;

[0010] The limiting assembly is arranged on the transfer bracket. When the docking block slides into the installation slot, the limiting assembly locks the position of the docking block to lock the clamping force of the clamping assembly;

[0011] The sensing component is arranged on the transfer bracket and controls the working state of the limit component based on the vertical distance between the transfer conveyor line and the docking conveyor line.

[0012] By adopting the above technical solution, when the transfer conveyor line and the docking conveyor line are completely docked, the limiting effect of the limiting assembly disappears, allowing the extrusion member to squeeze the fluid in the clamping cavity into the docking cavity, thereby placing the clamping assembly in a relaxed state and allowing the docking block to slide out of the installation slot;

[0013] When the transfer conveyor line is fully docked with the docking conveyor line, the transfer conveyor line will be in a shipping state or a receiving state, and the loosening of the clamping components facilitates the shipping or receiving of the transfer conveyor line;

[0014] When the transfer conveyor line completes receiving the goods, the transfer conveyor line moves downwardly away from the docking conveyor line. During the downward separation process of the transfer conveyor line, the docking block is first subjected to the external force exerted by the docking bracket, causing the docking block to slide into the installation groove and squeeze the docking cavity, so that the fluid in the docking cavity enters the clamping cavity, thereby causing the clamping assembly to clamp the goods on the transfer conveyor line.

[0015] When the clamping assembly clamps the goods and the transfer conveyor line continues to detach downward to a preset distance, the sensing assembly drives the limit assembly to start, so that the limit assembly locks the position of the docking block; then the transfer conveyor line continues to detach downward, so that the external force acting on the docking block disappears, thereby completing the reset of the docking block and the clamping assembly status, so that the clamping assembly can effectively clamp and protect the goods during the vertical lifting and transportation process, reducing the risk of goods falling during the layer change operation.

[0016] Optionally, two clamping assemblies are provided and symmetrically arranged on both sides of the transfer conveyor line. The clamping assembly also includes a clamping telescopic rod and a splint. The clamping telescopic rod is horizontally arranged, and the fixed end of the clamping telescopic rod is fixedly connected to the transfer bracket of the transfer conveyor line. The rodless cavity of the clamping telescopic rod is the clamping cavity; the splint is vertically arranged on the side where the two clamping telescopic rods are close to each other, and is fixedly connected to the movable end of the clamping telescopic rod; the extrusion piece is a clamping spring, and the clamping spring is arranged in the rod cavity of the clamping telescopic rod and is arranged parallel to the clamping telescopic rod. The clamping spring is always in a compressed state.

[0017] Optionally, the docking assembly is provided in two groups and corresponds one-to-one with the clamping assembly, each group includes two docking parts, and the two docking parts in the same group are symmetrically arranged at both ends of the length direction of the transport bracket; a docking groove is provided on the side of the docking bracket close to the transport bracket, and the docking groove corresponds one-to-one with the docking block and the mounting groove;

[0018] The docking assembly also includes a docking telescopic rod and a docking connecting pipe. The docking telescopic rod is arranged parallel to the transfer bracket and is located in an installation groove close to itself. The docking telescopic rod is fixedly connected to the side wall of the installation groove; the docking block is fixedly connected to the movable end of the docking telescopic rod, and the docking block is adapted to the docking groove; one end of the docking connecting pipe is connected to the rodless cavity of the docking telescopic rod, and the other end is connected to the rodless cavity of the clamping telescopic rod. Fluid is preset in the rodless cavity of the docking telescopic rod, the rodless cavity of the clamping telescopic rod and the docking connecting pipe.

[0019] By adopting the above technical solution, when the transfer conveyor line and the docking conveyor line are completely docked, the limiting effect of the limiting assembly disappears, so that the clamping spring can drive the clamping telescopic rod to contract, so that the fluid in the rodless cavity of the clamping telescopic rod enters the rodless cavity of the docking telescopic rod, thereby causing the docking telescopic rod to extend and the docking block to slide out of the installation groove and enter the docking groove;

[0020] When the transfer conveyor line is disengaged downward, the docking block is squeezed by the external force of the docking groove, causing the docking block to slide into the installation groove; when the docking block slides out of the installation groove, the docking block abuts against the docking bracket, so that the docking block will not slide out of the installation groove.

[0021] Optionally, a limiting groove is provided at the bottom of the docking block, and multiple limiting assemblies are provided, and correspond one to one with the docking blocks; the limiting assembly includes a limiting telescopic rod and a limiting spring, wherein the limiting telescopic rod is vertically arranged, the fixed end of the limiting telescopic rod is embedded in the transfer bracket, and the movable end of the limiting telescopic rod is used to insert into the limiting groove; the limiting spring is vertically arranged in the rodless cavity of the limiting telescopic rod, and the limiting spring is always in a compressed state.

[0022] Optionally, there are multiple sensing components, and they correspond one-to-one to the limiting components. The sensing components include a sensing telescopic rod, a sensing block and a sensing connecting pipe, wherein the sensing telescopic rod is arranged parallel to the docking telescopic rod, and the fixed end of the sensing telescopic rod is embedded in the transfer bracket; the sensing block is located below the docking block and is fixedly connected to the movable end of the sensing telescopic rod; one end of the sensing connecting pipe is connected to the rodless cavity of the sensing telescopic rod, and the other end is connected to the rod cavity of the limiting telescopic rod, and fluid is preset in the sensing connecting pipe, the rodless cavity of the sensing telescopic rod and the rod cavity of the limiting telescopic rod.

[0023] Optionally, the docking block and the sensing block are respectively located in different vertical planes; a clearance groove is provided on the side of the docking bracket close to the transfer bracket, the clearance groove vertically passes through the docking bracket upward, and the clearance groove corresponds to the sensing block one by one.

[0024] By adopting the above technical solution, during the process of the transfer conveyor line docking with the docking conveyor line for delivery, the induction block is squeezed by the external force of the docking bracket, causing the induction block to move toward the transfer bracket and causing the induction telescopic rod to contract. During the contraction of the induction telescopic rod, the fluid in the rodless cavity of the induction telescopic rod enters the rod cavity of the limiting telescopic rod through the induction connecting pipe, causing the limiting telescopic rod to contract, thereby eliminating the limiting effect of the limiting assembly.

[0025] When the limiting effect disappears, the docking block is in contact with the docking bracket, so that the docking block cannot slide out of the installation slot; when the limiting effect disappears, the transfer conveyor line continues to dock upward, so that the installation slot and the docking slot are aligned, that is, the docking of the transfer conveyor line is completed, so that the docking block can slide out of the installation slot, and the clamping assembly is in a relaxed state, which is convenient for the transfer conveyor line to ship;

[0026] When the transfer conveyor line is docking downward with the docking conveyor line to receive goods, the induction block slides in the give way groove, so that the induction block will not be squeezed by the external force of the docking bracket. That is to say, when the induction block is in the give way groove, the limiting effect of the limiting component exists; after the docking block abuts the docking bracket, the transfer conveyor line continues to dock downward, so that the induction block is separated from the give way groove. When the induction block is separated from the give way groove, the induction block is squeezed by the external force of the docking bracket, so that the induction block is close to the transfer bracket, thereby eliminating the limiting effect of the limiting component;

[0027] When the limiting effect disappears, the docking block cannot slide out of the installation groove due to the abutment between the docking block and the docking bracket; when the limiting effect disappears, the transfer conveyor line continues to dock downward, so that the installation groove and the docking groove are opposite, that is, the docking of the transfer conveyor line is completed, so that the docking block can slide out of the installation groove, and the clamping assembly is in a relaxed state, which is convenient for shipment of the transfer conveyor line.

[0028] Optionally, a flexible layer is fixedly provided on a side of the splint close to the goods.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] By setting a sensing component, a limit component, a docking component and a clamping component, the sensing component controls the working state of the limit component based on the docking condition of the transfer conveyor line and the docking conveyor line. During the lifting and lowering process of the transfer conveyor line, the limit component locks the position of the docking block, so that the clamping component can effectively protect the goods during the lifting and lowering process; during the upward or downward docking of the transfer conveyor line, the docking block abuts against the docking bracket, so that the limiting effect of the limit component disappears, and the docking block will not slide out of the installation groove. When the installation groove is facing the docking groove, the docking of the transfer conveyor line is completed. At this time, the docking block can slide out of the installation groove, and the clamping component is in a relaxed state, which is convenient for shipping and receiving goods on the transfer conveyor line. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of an embodiment of the present application;

[0032] Figure 2 This is a partial cross-sectional view of an embodiment of the present application for illustrating a clamping assembly;

[0033] Figure 3 This is a partial cross-sectional view of an embodiment of the present application for illustrating a docking assembly;

[0034] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0035] Figure 5 This is a partial cross-sectional view of the docking of the transfer conveyor line and the high-rise docking conveyor line in the embodiment of the present application;

[0036] Figure 6 This is a partial cross-sectional view of the transfer conveyor line and the docking conveyor line being fully docked in the embodiment of the present application;

[0037] Figure 7 It is a partial cross-sectional view of the docking of the transfer conveyor line and the docking conveyor line at the bottom layer in the embodiment of the application;

[0038] Figure 8 It is a partial cross-sectional view of the matching of the docking block and the docking groove.

[0039] Description of reference numerals:

[0040] 1. Transfer bracket; 11. Installation slot;

[0041] 2. Docking bracket; 21. Docking slot; 22. Giving way slot;

[0042] 3. Clamping assembly; 31. Clamping telescopic rod; 32. Clamping plate; 33. Clamping spring;

[0043] 4. Docking assembly; 41. Docking telescopic rod; 42. Docking block; 421. Limiting groove; 43. Docking connecting pipe;

[0044] 5. Limiting assembly; 51. Limiting telescopic rod; 52. Limiting spring;

[0045] 6. Sensing assembly; 61. Sensing telescopic rod; 62. Sensing block; 63. Sensing connecting pipe. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-8 This application is described in further detail.

[0047] The embodiment of the present application discloses a cargo protection device for the elevator layer change operation, which is arranged on the transfer conveyor line of the elevator and the docking conveyor lines on both sides of the elevator. Figures 1 to 7 A cargo protection device for the layer-changing operation of an elevator includes a clamping component 3, a docking component 4, a limit component 5 and a sensing component 6. The clamping component 3 is used to clamp and protect the cargo on the transfer conveyor line. The docking component 4 controls the working state of the clamping component 3 based on the docking condition between the transfer conveyor line and the docking conveyor line; the limit component 5 is used to lock the clamping force of the clamping component 3 through the docking component 4; the sensing component 6 controls the working state of the limit component 5 based on the docking condition between the transfer conveyor line and the docking conveyor line.

[0048] It should be noted that the cargo referred to in this application is an integral transport unit formed by packing items in a cargo box.

[0049] There are two clamping assemblies 3, and they are symmetrically arranged on both sides of the transfer conveyor line. The clamping assemblies 3 include a clamping telescopic rod 31, a clamping plate 32 and a clamping spring 33. The clamping telescopic rod 31 is horizontally arranged, and the length direction of the clamping telescopic rod 31 is perpendicular to the transportation direction of the transfer conveyor line, and the fixed end of the clamping telescopic rod 31 is fixedly connected to the transfer bracket 1 of the transfer conveyor line; the clamping plate 32 is vertically arranged on the side where the two clamping telescopic rods 31 are close to each other, and is fixedly connected to the movable end of the clamping telescopic rod 31; the clamping spring 33 is arranged in the rod cavity of the clamping telescopic rod 31, and is arranged parallel to the clamping telescopic rod 31, and the clamping spring 33 is always in a compressed state; a flexible layer is fixedly arranged on the side of the clamping plate 32 close to the goods.

[0050] When the transfer conveyor line is fully docked with the docking conveyor line, the clamping telescopic rod 31 contracts under the action of the clamping spring 33, causing the two clamping plates 32 to move away from each other, thereby relaxing the clamping assembly 3 and facilitating the transfer conveyor line to ship and receive goods. When the transfer conveyor line is disconnected from the docking conveyor line, the clamping telescopic rod 31 extends under the action of an external force, causing the two clamping plates 32 to move closer together, allowing the clamping plates 32 to clamp and protect the goods.

[0051] There are two groups of docking components 4 and they correspond one-to-one with the clamping components 3. Each group includes two docking parts, and the two docking parts in the same group are symmetrically arranged at both ends of the length direction of the transfer bracket 1; a docking groove 21 is provided on the side of the docking bracket 2 close to the transfer bracket 1, and an installation groove 11 for the docking part is provided on the side of the transfer bracket 1 close to the docking bracket 2, and the installation groove 11 corresponds one-to-one with the docking groove 21 and the docking part.

[0052] The docking part includes a docking telescopic rod 41, a docking block 42 and a docking connecting pipe 43. The docking telescopic rod 41 is arranged parallel to the transfer bracket 1 and is located in the corresponding installation groove 11. The docking telescopic rod 41 is fixedly connected to the side wall of the installation groove 11; the docking block 42 is fixedly connected to the movable end of the docking telescopic rod 41, and the longitudinal cross-sectional area of ​​the docking block 42 close to one end of the docking groove 21 gradually decreases in the direction away from the installation groove 11, and the docking groove 21 is adapted to the docking block 42; one end of the docking connecting pipe 43 is connected to the rodless cavity of the docking telescopic rod 41, and the other end is connected to the rodless cavity of the clamping telescopic rod 31. Fluid is preset in the rodless cavity of the docking telescopic rod 41, the rodless cavity of the clamping telescopic rod 31 and the docking connecting pipe 43.

[0053] refer to Figure 8 It should be noted that, in order to facilitate the disengagement of the docking block 42 from the docking groove 21 , a pulley may be provided inside the side wall of the docking groove 21 .

[0054] A limiting groove 421 is provided at the bottom of the docking block 42, and four limiting components 5 are provided, and correspond one to one with the docking block 42; the limiting component 5 includes a limiting telescopic rod 51 and a limiting spring 52, wherein the limiting telescopic rod 51 is vertically arranged below the docking block 42, the fixed end of the limiting telescopic rod 51 is embedded in the transfer bracket 1, and the movable end of the limiting telescopic rod 51 is used to be inserted into the limiting groove 421; the limiting spring 52 is vertically arranged in the rodless cavity of the limiting telescopic rod 51, and the limiting spring 52 is always in a compressed state.

[0055] There are multiple sensing components 6, and they correspond one-to-one to the limiting components 5. The sensing components 6 include a sensing telescopic rod 61, a sensing block 62 and a sensing connecting pipe 63, wherein the sensing telescopic rod 61 is arranged parallel to the docking telescopic rod 41, and the fixed end of the sensing telescopic rod 61 is embedded in the transfer bracket 1; the sensing block 62 is fixedly connected to the movable end of the sensing telescopic rod 61; one end of the sensing connecting pipe 63 is connected to the rodless cavity of the sensing telescopic rod 61, and the other end is connected to the rod cavity of the limiting telescopic rod 51. Fluid is preset in the sensing connecting pipe 63, the rodless cavity of the sensing telescopic rod 61 and the rod cavity of the limiting telescopic rod 51.

[0056] The docking block 42 and the sensing block 62 are respectively located in different vertical planes; a clearance groove 22 is provided on the side of the docking bracket 2 close to the transfer bracket 1, and the clearance groove 22 vertically penetrates the docking bracket 2 upward, and the clearance groove 22 corresponds to the sensing block 62 one by one.

[0057] The implementation principle of a cargo protection device for elevator floor-changing operation in the embodiment of the present application is as follows:

[0058] The transfer conveyor line receives goods from the bottom-level docking conveyor line on its left side. After receiving the goods, the transfer conveyor line docks with the high-level docking conveyor line on its right side and delivers the goods. The high-level docking conveyor line includes two-level docking conveyor line, three-level docking conveyor line, four-level docking conveyor line, etc.

[0059] When the transfer conveyor line descends, during the docking process with the docking conveyor line at the bottom, first, the sensing block 62 slides into the give way groove 22, and the position of the sensing block 62 in the horizontal plane remains unchanged; then, when the sensing block 62 slides out of the give way groove 22, the sensing block 62 is squeezed by the docking bracket 2, causing the sensing block 62 to move in the direction close to the transfer bracket 1, thereby causing the sensing telescopic rod 61 to retract; during the retraction process of the sensing telescopic rod 61, the fluid in the rodless cavity of the sensing telescopic rod 61 enters the rod cavity of the limiting telescopic rod 51, causing the limiting telescopic rod 51 to retract, thereby releasing the locked state of the docking block 42; then, when the mounting groove 11 and the docking groove 21 gradually face each other, the docking block 42 begins to slide out of the mounting groove 11 and enter the docking groove 21 under the action of the clamping spring 33, causing the docking telescopic rod 41 to extend and the clamping telescopic rod 31 to retract, making it easier for the goods on the docking conveyor line at the bottom to enter between the two splints 32 of the transfer conveyor line, thereby completing the receiving task of the transfer conveyor line.

[0060] When the transfer conveyor line has completed receiving the goods, if the goods need to reach the high-level docking conveyor line, the transfer conveyor line needs to separate upward from the docking conveyor line at the bottom. First, the docking block 42 slides toward the installation groove 11 under the squeezing action of the inner wall of the docking groove 21, causing the docking telescopic rod 41 to retract. During the contraction process of the docking telescopic rod 41, the fluid in the rodless cavity of the docking telescopic rod 41 enters the rodless cavity of the clamping telescopic rod 31, causing the clamping telescopic rod 31 to drive the clamping plate 32 to clamp the goods; then, the sensing block 62 slides upward to the notch of the yield groove 22. At this time, the movable end of the limiting telescopic rod 51 is opposite to the limiting groove 421, so that the compressed limiting spring 52 drives the movable end of the limiting telescopic rod 51 to enter the limiting groove 421, and the sensing telescopic rod 61 extends, causing the sensing block 62 to enter the yield groove 22; finally, the docking block 42 whose position is locked locks the length of the clamping telescopic rod 31, so that the goods on the transfer conveyor line can be effectively clamped and protected.

[0061] After receiving the goods, the transfer conveyor line moves upward to dock with the transfer conveyor line on the second floor. First, the sensing block 62 is squeezed by the external force of the docking bracket 2, so that the sensing block 62 moves toward the direction close to the transfer bracket 1, and the sensing telescopic rod 61 contracts. During the contraction of the sensing telescopic rod 61, the fluid in the rodless cavity of the sensing telescopic rod 61 enters the rod cavity of the limiting telescopic rod 51 through the sensing connecting pipe 63, so that the limiting telescopic rod 51 contracts, thereby eliminating the limiting effect of the limiting component 5; then, when the limiting effect disappears, the transfer conveyor line continues to move upward, so that the installation groove 11 is opposite to the docking groove 21, that is, the docking of the transfer conveyor line is completed, so that the docking block 42 can slide out of the installation groove 11, and the clamping component 3 is in a relaxed state, which is convenient for shipping from the transfer conveyor line.

[0062] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cargo protection device for elevator layer change operation, which is installed on the transfer conveyor line of the elevator and the docking conveyor lines on both sides of the elevator, characterized in that: include: A clamping assembly (3) is arranged on a transfer support (1) of a transfer conveyor line and is used to clamp and protect goods on the transfer conveyor line. The clamping assembly (3) is provided with a clamping cavity with a variable space size. The clamping assembly (3) includes an extrusion member. A fluid is preset in the clamping cavity. The extrusion member is used to squeeze the clamping cavity. When the space of the clamping cavity is large, the clamping assembly (3) is in a clamping state. When the space of the clamping cavity is small, the clamping assembly (3) is in a relaxed state. The docking assembly (4) is provided with a docking cavity with a variable space size and connected to the clamping cavity, and a fluid is preset in the docking cavity; the docking assembly (4) includes a docking block (42); a mounting groove (11) for slidingly placing the docking block (42) is opened on a side of the transfer bracket (1) close to the docking conveyor line, and when the vertical distance between the docking block (42) and the docking conveyor line is within a preset range, the docking block (42) can be subjected to an external extrusion force applied by the docking conveyor line; the docking block (42) can slide out of the mounting groove (11) based on the increase in the space of the docking cavity, and can slide into the mounting groove (11) based on the action of an external force, and squeeze the docking cavity; The limiting assembly (5) is arranged on the transfer bracket (1). When the docking block (42) slides into the installation groove (11), the limiting assembly (5) locks the clamping force of the clamping assembly (3) by locking the position of the docking block (42); a limiting groove (421) is provided at the bottom of the docking block (42), and the limiting assembly (5) includes a limiting telescopic rod (51), and the movable end of the limiting telescopic rod (51) is used to be inserted into the limiting groove (421); The sensing component (6) is arranged on the transfer bracket (1) and controls the working state of the limit component (5) based on the vertical distance between the transfer conveyor line and the docking conveyor line; the sensing component (6) includes a sensing connecting pipe (63), one end of the sensing connecting pipe (63) is connected to the rodless cavity of the sensing telescopic rod (61), and the other end is connected to the rod cavity of the limit telescopic rod (51).

2. A cargo protection device for elevator floor-changing operation according to claim 1, characterized in that: The clamping components (3) are provided with two and are symmetrically arranged on both sides of the transfer conveyor line. The clamping components (3) also include a clamping telescopic rod (31) and a clamping plate (32). The clamping telescopic rod (31) is horizontally arranged, and the fixed end of the clamping telescopic rod (31) is fixedly connected to the transfer bracket (1) of the transfer conveyor line. The rodless cavity of the clamping telescopic rod (31) is the clamping cavity; the clamping plate (32) is vertically arranged on the side where the two clamping telescopic rods (31) are close to each other, and is fixedly connected to the movable end of the clamping telescopic rod (31); the extrusion piece is a clamping spring (33), which is arranged in the rod cavity of the clamping telescopic rod (31) and is arranged parallel to the clamping telescopic rod (31). The clamping spring (33) is always in a compressed state.

3. A cargo protection device for elevator floor-changing operation according to claim 2, characterized in that: The docking components (4) are provided in two groups and correspond one-to-one with the clamping components (3), each group including two docking parts, and the two docking parts in the same group are symmetrically arranged at both ends of the length direction of the transfer bracket (1); a docking groove (21) is provided on the side of the docking bracket (2) close to the transfer bracket (1), and the docking groove (21) corresponds one-to-one with the docking block (42) and the installation groove (11); The docking portion further includes a docking telescopic rod (41) and a docking connecting pipe (43). The docking telescopic rod (41) is arranged in parallel with the transfer bracket (1) and is located in the installation groove (11) close to itself. The docking telescopic rod (41) is fixedly connected to the side wall of the installation groove (11); the docking block (42) is fixedly connected to the movable end of the docking telescopic rod (41), and the docking block (42) is adapted to the docking groove (21); one end of the docking connecting pipe (43) is connected to the rodless cavity of the docking telescopic rod (41), and the other end is connected to the rodless cavity of the clamping telescopic rod (31). Fluid is preset in the rodless cavity of the docking telescopic rod (41), the rodless cavity of the clamping telescopic rod (31) and the docking connecting pipe (43).

4. A cargo protection device for elevator floor-changing operation according to claim 3, characterized in that: The limiting components (5) are provided in plurality and correspond one to one with the docking blocks (42); the limiting components (5) also include a limiting spring (52), wherein the limiting telescopic rod (51) is vertically provided, and the fixed end of the limiting telescopic rod (51) is embedded in the interior of the transfer bracket (1); the limiting spring (52) is vertically provided in the rodless cavity of the limiting telescopic rod (51), and the limiting spring (52) is always in a compressed state.

5. The cargo protection device for elevator floor-changing operation according to claim 4, characterized in that: The sensing components (6) are provided in plurality and correspond one to one with the limiting components (5). The sensing components (6) further include a sensing telescopic rod (61) and a sensing block (62), wherein the sensing telescopic rod (61) is provided in parallel with the docking telescopic rod (41), and the fixed end of the sensing telescopic rod (61) is embedded in the interior of the transfer bracket (1); the sensing block (62) is located below the docking block (42) and is fixedly connected to the movable end of the sensing telescopic rod (61); and fluid is preset in the sensing connecting pipe (63), in the rodless cavity of the sensing telescopic rod (61), and in the rod cavity of the limiting telescopic rod (51).

6. The cargo protection device for elevator floor-changing operation according to claim 5, characterized in that: The docking block (42) and the sensing block (62) are respectively located in different vertical planes; a clearance groove (22) is provided on a side of the docking bracket (2) close to the transfer bracket (1), and the clearance groove (22) vertically penetrates the docking bracket (2) upwards, and the clearance groove (22) corresponds to the sensing block (62) one by one.

7. The cargo protection device for elevator floor-changing operation according to claim 2, characterized in that: A flexible layer is fixedly provided on one side of the splint (32) close to the goods.

Images