Goods protection device for layer-changing operation of elevator

Abstract

The invention relates to the technical field of warehouse logistics, in particular to a cargo protection device for layer-changing operation of an elevator, which is arranged on a transfer conveying line of the elevator and butt-joint conveying lines on two sides of the elevator, and comprises a clamping assembly arranged on a transfer support of the transfer conveying line, the clamping device is used for clamping and protecting goods on the transfer conveying line; the butt-joint assembly comprises a butt-joint block, and a mounting groove allowing the butt-joint block to be slidably placed is formed in the side, close to the butt-joint conveying line, of the transfer support; the limiting assembly is arranged on the transfer support, and after the butt joint block slides into the mounting groove, the limiting assembly locks the clamping force of the clamping assembly by locking the position of the butt joint block; the sensing assembly is arranged on the transfer support and controls the working state of the limiting assembly based on the vertical distance between the transfer conveying line and the butt joint conveying line. According to the invention, the risk of falling of goods in the layer-changing operation process can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of warehousing logistics, and particularly to a cargo protection device for the layer-changing operation of a lifter. Background Art

[0002] In a modern warehousing logistics system, goods often need to be transported on conveyor lines at different levels. Therefore, a lifter needs to be applied, and a transfer conveyor line is set on the lifter for intermediate layer change.

[0003] During the lifting and lowering process of the goods on the transfer conveyor line along with the transfer conveyor line, a protection device needs to be set to prevent the goods from falling off the transfer conveyor line. The existing protection device includes two symmetrically arranged electric telescopic rods. The fixed ends of the electric telescopic rods are fixedly connected to the brackets of the transfer conveyor line, and protection plates are fixedly arranged at the movable ends of the two electric telescopic rods. During the layer-changing lifting and lowering process of the goods, the two electric telescopic rods extend, so that the two protection plates clamp the goods to prevent the goods from falling off the transfer conveyor line. When the transfer conveyor line is completely docked with the conveyor line at a certain level, the electric telescopic rods contract to facilitate the layer-changing transportation of the goods.

[0004] During the above-mentioned protection process of the goods, when there is a temporary failure in the power supply of the electric telescopic rod or the electric telescopic rod itself gets out of control, the protection plate cannot effectively clamp the goods, resulting in a risk that the goods will still fall during the layer-changing operation. Summary of the Invention

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

[0006] A cargo protection device for the layer-changing operation of a lifter provided by this application adopts the following technical solutions: A cargo protection device for the layer-changing operation of a lifter is arranged on the transfer conveyor line of the lifter and the docking conveyor lines on both sides of the lifter, and includes: A clamping assembly is arranged on the transfer bracket of the transfer conveyor line and is used for clamping and protecting the goods on the transfer conveyor line. The clamping assembly is provided with a clamping cavity with variable space size. The clamping assembly includes an extrusion member. A fluid is preset in the clamping cavity. The extrusion member is used for extruding the clamping cavity. When the space of the clamping cavity is large, the clamping assembly is in a clamped state. When the space of the clamping cavity is small, the clamping assembly is in a relaxed state; The docking component is provided with a docking cavity whose spatial size is variable and is communicated with the clamping cavity, and a fluid is preset in the docking cavity; the docking component includes a docking block, and an installation groove for sliding and placing the docking block is formed on one 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 installation groove based on the increase in the space of the docking cavity, and the docking block can slide into the installation groove based on the external force. The limiting component is arranged on the transfer bracket. After the docking block slides into the installation groove, the limiting component locks the clamping force of the clamping component by locking the position of the docking block. The induction component is arranged on the transfer bracket and controls the working state of the limiting component based on the vertical distance between the transfer conveyor line and the docking conveyor line.

[0007] By adopting the above technical solution, when the transfer conveyor line is completely docked with the docking conveyor line, the limiting effect of the limiting component disappears, so that the extrusion part can extrude the fluid in the clamping cavity into the docking cavity, thereby making the clamping component in a relaxed state and making the docking block slide out of the installation groove. When the transfer conveyor line is completely docked with the docking conveyor line, the transfer conveyor line will be in the state of shipping or receiving goods. The relaxation of the clamping component facilitates the shipping or receiving of goods by the transfer conveyor line. After the transfer conveyor line completes receiving goods, the transfer conveyor line moves downward to disengage from the docking conveyor line. During the downward disengagement process of the transfer conveyor line, the docking block is first subjected to the external force applied by the docking bracket, so that the docking block slides into the installation groove, and the docking block squeezes the docking cavity, so that the fluid in the docking cavity enters the clamping cavity, thereby enabling the clamping component to clamp the goods on the transfer conveyor line. After the clamping component clamps the goods, when the transfer conveyor line continues to move downward to a preset distance, the induction component drives the limiting component to start, so that the limiting component locks the position of the docking block; then the transfer conveyor line continues to move downward to make the external force acting on the docking block disappear, thereby completing the reset of the states of the docking block and the clamping component, so that during the vertical lifting and transportation of the goods, the clamping component can effectively clamp and protect the goods, reducing the risk of the goods falling during the process of changing floors.

[0008] Optionally, there are two clamping components, which are symmetrically arranged on both sides of the transfer conveyor line. The clamping component further includes a clamping telescopic rod and a clamping plate. The clamping telescopic rod is horizontally arranged, the fixed end of the clamping telescopic rod is fixedly connected to the transfer bracket of the transfer conveyor line, and the rodless cavity of the clamping telescopic rod is the clamping cavity; the clamping plate is vertically arranged on one 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 part is a clamping spring, the clamping spring is arranged in the rod cavity of the clamping telescopic rod and is arranged in parallel with the clamping telescopic rod, and the clamping spring is always in a compressed state.

[0009] Optionally, the docking assembly is provided in two groups and corresponds to the clamping assembly one by one, 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 one side of the docking bracket close to the transport bracket, and the docking groove corresponds to the docking block and the mounting groove one by one; 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.

[0010] By adopting the above technical solution, when the transfer conveyor line is completely docked with the docking conveyor line, 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 extending the docking telescopic rod and sliding the docking block out of the installation groove and into the docking groove; 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.

[0011] Optionally, a limiting groove is provided at the bottom of the docking block, and a plurality of limiting assemblies are provided, and they 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 be inserted 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.

[0012] Optionally, there are multiple sensing components, and they correspond one-to-one to the limiting components, and the sensing components include a sensing telescopic rod, a sensing block and a sensing connecting tube, wherein the sensing telescopic rod is arranged in parallel with 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 tube 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 tube, the rodless cavity of the sensing telescopic rod and the rod cavity of the limiting telescopic rod.

[0013] Optionally, the docking block and the sensing block are respectively located in different vertical planes; a clearance groove is provided on one side of the docking bracket close to the transfer bracket, the clearance groove vertically penetrates the docking bracket upward, and the clearance groove corresponds to the sensing block one by one.

[0014] 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, so that the induction block moves toward the direction close to the transfer bracket, and the induction telescopic rod is contracted. 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 limit telescopic rod through the induction connecting pipe, so that the limit telescopic rod is contracted, thereby eliminating the limiting effect of the limit assembly; In the process of the disappearance of the limiting effect, 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 upward, so that the installation groove and the docking groove are directly 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 the transfer conveyor line to ship; In the process of the transfer conveyor line docking downward with the docking conveyor line to receive goods, the induction block slides in the clearance groove, so that the induction block will not be squeezed by the external force of the docking bracket, that is, when the induction block is in the clearance groove, the limiting effect of the limiting component exists; after the docking block abuts against the docking bracket, the transfer conveyor line continues to dock downward, so that the induction block is separated from the clearance groove. In the process of the induction block being separated from the clearance 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, so that the limiting effect of the limiting component disappears; 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 the transfer conveyor line to ship.

[0015] Optionally, a flexible layer is fixedly provided on a side of the splint close to the goods.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: By setting the sensing component, the limit component, the docking component and the 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 directly opposite to 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 the shipment and receipt of goods on the transfer conveyor line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an embodiment of the present application; Figure 2 is a partial cross-sectional view for showing the clamping assembly in an embodiment of the present application; Figure 3 is a partial cross-sectional view for showing the docking assembly in an embodiment of the present application; Figure 4 is Figure 3 a partial enlarged view at position A in; Figure 5 is a partial cross-sectional view of the docking between the transfer conveyor line and the docking conveyor line at a high level in an embodiment of the present application; Figure 6 is a partial cross-sectional view of the complete docking between the transfer conveyor line and the docking conveyor line in an embodiment of the present application; Figure 7 is a partial cross-sectional view of the docking between the transfer conveyor line and the docking conveyor line at the bottom layer in an embodiment of the application; Figure 8 is a partial cross-sectional view of the docking block and the docking groove being adapted to each other.

[0018] Explanation of reference numerals: 1. Transfer support; 11. Installation groove; 2. Docking support; 21. Docking groove; 22. Relief groove; 3. Clamping assembly; 31. Clamping telescopic rod; 32. Clamping plate; 33. Clamping spring; 4. Docking assembly; 41. Docking telescopic rod; 42. Docking block; 421. Limiting groove; 43. Docking connecting pipe; 5. Limiting assembly; 51. Limiting telescopic rod; 52. Limiting spring; 6. Induction assembly; 61. Induction telescopic rod; 62. Induction block; 63. Induction connecting pipe. Detailed implementation manners

[0019] The following further elaborates on the present application in conjunction with the attached Figure 1-8 drawings.

[0020] An embodiment of the present application discloses a goods protection device for the layer-changing operation of a lifter, which is arranged on the transfer conveyor line of the lifter and the docking conveyor lines on both sides of the lifter. Refer to Figures 1 to 7, A cargo protection device for the layer-changing operation of a hoist includes a clamping assembly 3, a docking assembly 4, a limiting assembly 5, and a sensing assembly 6. The clamping assembly 3 is used to clamp and protect the goods on the transfer conveyor line. The docking assembly 4 controls the working state of the clamping assembly 3 based on the docking situation between the transfer conveyor line and the docking conveyor line. The limiting assembly 5 is used to lock the clamping force of the clamping assembly 3 through the docking assembly 4. The sensing assembly 6 controls the working state of the limiting assembly 5 based on the docking situation between the transfer conveyor line and the docking conveyor line.

[0021] It should be noted that the goods referred to in this application are the overall transportation units formed after the items are packed in the cargo box.

[0022] There are two clamping assemblies 3, which are symmetrically arranged on both sides of the transfer conveyor line. The clamping assembly 3 includes 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. The fixed end of the clamping telescopic rod 31 is fixedly connected to the transfer support 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. 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.

[0023] When the transfer conveyor line and the docking conveyor line are completely docked, the clamping telescopic rod 31 contracts under the action of the clamping spring 33, so that the two clamping plates 32 move away from each other, so that the clamping assembly 3 is in a relaxed state, which is convenient for the transfer conveyor line to discharge and receive goods. During the process of the transfer conveyor line and the docking conveyor line separating, the clamping telescopic rod 31 extends under the action of an external force, so that the two clamping plates 32 move closer to each other, which is convenient for the clamping plates 32 to clamp and protect the goods.

[0024] There are two groups of docking assemblies 4, which correspond to the clamping assemblies 3 one by one. Each group includes two docking parts. The two docking parts in the same group are symmetrically arranged at both ends of the transfer support 1 in the length direction. A docking groove 21 is opened on the side of the docking support 2 close to the transfer support 1. An installation groove 11 for arranging the docking part is opened on the side of the transfer support 1 close to the docking support 2. The installation groove 11 corresponds to the docking groove 21 and the docking part one by one.

[0025] 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 at one end close to 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.

[0026] 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 .

[0027] A limiting groove 421 is provided at the bottom of the docking block 42, and four limiting components 5 are provided, and they correspond one to one with the docking blocks 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.

[0028] There are multiple sensing components 6, and they correspond one-to-one with the limiting components 5. The sensing components 6 include a sensing telescopic rod 61, a sensing block 62 and a sensing connecting tube 63, wherein the sensing telescopic rod 61 is arranged in parallel with 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 tube 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, and fluid is preset in the sensing connecting tube 63, the rodless cavity of the sensing telescopic rod 61 and the rod cavity of the limiting telescopic rod 51.

[0029] The docking block 42 and the sensing block 62 are respectively located in different vertical planes; a clearance groove 22 is provided on one 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.

[0030] The implementation principle of a cargo protection device for elevator layer change operation in the embodiment of the present application is as follows: The transfer conveyor line receives goods from the bottom-level docking conveyor line on its left side. When the goods are received, 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 lines include two-level docking conveyor lines, three-level docking conveyor lines, four-level docking conveyor lines, and so on.

[0031] When the transfer conveyor line descends, during the docking process with the docking conveyor line at the bottom layer, first, the sensing block 62 slides into the giving 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 giving way groove 22, the sensing block 62 is squeezed by the docking bracket 2, so that the sensing block 62 moves in the direction close to the transfer bracket 1, thereby causing the sensing telescopic rod 61 to contract; 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, causing the limiting telescopic rod 51 to contract, 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 contract, so that the goods on the docking conveyor line at the bottom layer enter between the two clamping plates 32 of the transfer conveyor line, thereby completing the task of receiving goods on the transfer conveyor line.

[0032] 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 detach from the docking conveyor line at the bottom layer upwards. First, the docking block 42 slides down to the installation groove 11 under the squeezing effect of the inner wall of the docking groove 21, so that the docking telescopic rod 41 contracts. During the contraction 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, so that the clamping telescopic rod 31 drives the clamping plate 32 to clamp the goods; then, the sensing block 62 slides upward to the notch of the yielding groove 22. At this time, the movable end of the limiting telescopic rod 51 is directly opposite to the limiting groove 421, so that the limiting spring 52 in the compressed state drives the movable end of the limiting telescopic rod 51 to enter the limiting groove 421, and the sensing telescopic rod 61 extends, so that the sensing block 62 enters the yielding 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.

[0033] After the receiving is completed, the transfer conveyor line is connected upward to the transfer conveyor line on the second floor. First, the sensing block 62 is extruded by the external force of the docking bracket 2, causing the sensing block 62 to move towards the transfer bracket 1 and causing the sensing telescopic rod 61 to contract. 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 limit telescopic rod 51 through the sensing connecting pipe 63, causing the limit telescopic rod 51 to contract, so that the limiting function of the limiting component 5 disappears; then, after the limiting function disappears, the transfer conveyor line continues to move upward, making the installation groove 11 face the docking groove 21, that is, the transfer conveyor line docking 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, facilitating the transfer conveyor line to ship the goods.

[0034] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cargo protection device for the layer-changing operation of a hoist, which is arranged on the transfer conveyor line of the hoist and the docking conveyor lines on both sides of the hoist, and is characterized in that, Including: A clamping assembly (3) is arranged on the transfer bracket (1) of the transfer conveyor line and is used for clamping and protecting the goods on the transfer conveyor line. The clamping assembly (3) is provided with a clamping cavity with variable space size. The clamping assembly (3) includes an extrusion member. A fluid is preset in the clamping cavity. The extrusion member is used for extruding the clamping cavity. When the space of the clamping cavity is larger, the clamping assembly (3) is in a clamped state. When the space of the clamping cavity is smaller, the clamping assembly (3) is in a relaxed state; A docking assembly (4) is provided with a docking cavity with variable space size and communicated with the clamping cavity. A fluid is preset in the docking cavity; The docking assembly (4) includes a docking block (42). An installation groove (11) for the docking block (42) to slide and place is formed on one side of the transfer bracket (1) close to the docking conveyor line. 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 the extrusion external force applied by the docking conveyor line; The docking block (42) can slide out of the installation groove (11) based on the increase of the space of the docking cavity, and the docking block (42) can slide into the installation groove (11) based on the external force; A limiting assembly (5) is arranged on the transfer bracket (1). After 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); An induction assembly (6) is arranged on the transfer bracket (1) to control the working state of the limiting assembly (5) based on the vertical distance between the transfer conveyor line and the docking conveyor line.

2. The goods protection device for the hoist to run between floors according to claim 1, characterized in that There are two clamping assemblies (3), which are symmetrically arranged on both sides of the transfer conveyor line. The clamping assembly (3) further includes a clamping telescopic rod (31) and a clamping plate (32). The clamping telescopic rod (31) is horizontally arranged. 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 one 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 member is a clamping spring (33). The clamping spring (33) is arranged in the rod cavity of the clamping telescopic rod (31) and is arranged in parallel with the clamping telescopic rod (31). The clamping spring (33) is always in a compressed state.

3. The goods protection device for the hoist to run between floors according to claim 2, characterized in that, There are two groups of docking assemblies (4) and they correspond to the clamping assemblies (3) one by one. Each group includes two docking parts. The two docking parts in the same group are symmetrically arranged at both ends of the transfer bracket (1) in the length direction; A docking groove (21) is formed on one side of the docking bracket (2) close to the transfer bracket (1). The docking groove (21) corresponds to the docking block (42) and the installation groove (11) one by one; The docking portion further comprises 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 a mounting groove (11) close to the docking telescopic rod (41). The docking telescopic rod (41) is fixedly connected to the side wall of the mounting groove (11). The docking block (42) is fixedly connected to the movable end of the docking telescopic rod (41). 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. The goods protection device for the hoist to run between floors according to claim 3, characterized in that, A limiting groove (421) is provided at the bottom of the docking block (42), and a plurality of limiting assemblies (5) are provided, and correspond one to one with the docking blocks (42); the limiting assembly (5) comprises a limiting telescopic rod (51) and a limiting spring (52), wherein the limiting telescopic rod (51) is vertically arranged, the fixed end of the limiting telescopic rod (51) is embedded in the interior of 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.

5. The goods protection device for the layer-changing operation of the elevator according to claim 4, characterized in that, The sensing components (6) are provided in plurality and correspond one to one with the position 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 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); one end of the sensing connecting pipe (63) is communicated with the rodless cavity of the sensing telescopic rod (61), and the other end is communicated with the rod-carrying cavity of the position 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-carrying cavity of the position limiting telescopic rod (51).

6. The goods protection device for the hoist to run between floors 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); 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. A cargo protection device for the layer-changing operation of an elevator according to claim 2, characterized in that A flexible layer is fixedly provided on a side of the clamping plate (32) close to the goods.

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