Auxiliary lifting goods shelf

Abstract

The utility model discloses an auxiliary lifting goods shelf, and relates to the technical field of material lifting carrying, the auxiliary lifting goods shelf comprises a rack, a transmission mechanism and a lifting auxiliary mechanism, the rack comprises a rack body, a first limiting assembly and a second limiting assembly, and the first limiting assembly and the second limiting assembly are installed on the rack body; the conveying mechanism comprises a conveying part and a clamping part, one end of the conveying part is rotatably installed on the frame body, the other end of the conveying part is in sliding fit with the clamping part, and the clamping part can be in clamping fit with the first limiting assembly or the second limiting assembly to limit rotation of the conveying part relative to the frame body; the lifting auxiliary mechanism comprises a load, a pulley device and a pull rope assembly, the pulley device is connected with the frame body, one end of the pull rope assembly is connected with the load, and the load provides upward pulling force for the conveying piece through the pull rope assembly, so that manpower is saved, an operator can lift a plurality of materials at a time, and the time spent on feeding is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of material lifting and handling, in particular to an auxiliary lifting shelf. Background Art

[0002] At present, due to space limitations, the height of the material feeding port is 1150mm from the ground, that is, the slide rail for transmitting materials is located at a height of 1150mm from the ground. This requires operators to lift the materials to the height of the feeding port when supplying materials. During one material replenishment process, operators need to lift multiple boxes of materials on the logistics trolley to the feeding port. This process not only consumes a lot of manpower, but also has low operating efficiency, resulting in traffic jams caused by logistics trolleys occupying transportation channels, seriously affecting the progress of other projects. Utility Model Content

[0003] The main purpose of the utility model is to provide an auxiliary lifting shelf, aiming to solve the problem of how to reduce the manpower and time consumed in transporting materials when the loading port is at a higher position from the ground.

[0004] To achieve the above-mentioned purpose, the utility model provides an auxiliary lifting shelf, which comprises: a frame, the frame comprising a frame body and a first limit assembly and a second limit assembly installed on the frame body;

[0005] A transmission mechanism, the transmission mechanism comprising a transmission member and a clamping member, one end of the transmission member is rotatably mounted on the frame body, the other end of the transmission member is slidably engaged with the clamping member, and the clamping member can be engaged with the first limiting assembly or the second limiting assembly to limit the transmission member from rotating relative to the frame body;

[0006] A lifting auxiliary mechanism, the lifting auxiliary mechanism includes a load, a pulley device and a pull rope assembly, the pulley device is connected to the frame body, one end of the pull rope assembly is connected to the load, and the other end of the pull rope assembly is connected to the transmission member after passing through the pulley device, and the connection position of the pulley device and the frame body is higher than the connection position of the pull rope assembly and the load and the connection position of the pull rope assembly and the transmission member.

[0007] In one embodiment, the pulley device includes a first pulley assembly and a second pulley assembly, the first pulley assembly and the second pulley assembly are both connected to the frame body, the first pulley assembly and the load are arranged at intervals in the vertical direction, the second pulley assembly and the first pulley assembly are arranged at intervals along the material transmission direction of the transmission member, and the end of the pull rope assembly away from the load bypasses the first pulley assembly and the second pulley assembly in sequence and then is connected to the transmission member.

[0008] In one embodiment, the first pulley assembly includes a first pulley and a second pulley arranged at intervals along the material transmission direction of the transmission member, the first pulley and the second pulley are both connected to the frame body, and the height of the second pulley is higher than the height of the first pulley; the second pulley assembly includes a third pulley and a fourth pulley arranged at intervals along the material transmission direction of the transmission member, the third pulley and the fourth pulley are both connected to the frame body, and the height of the fourth pulley is lower than the height of the third pulley, the pull rope assembly includes a first pull rope and a second pull rope, one end of the first pull rope is connected to the load, and the other end of the first pull rope is connected to the transmission member after bypassing the first pulley and the fourth pulley in sequence, and one end of the second pull rope is connected to the load, and the other end of the second pull rope is connected to the transmission member after bypassing the second pulley and the third pulley in sequence.

[0009] In one embodiment, the first pulley assembly further includes a fifth pulley, which is connected to the frame body and disposed between the first pulley and the second pulley, and has a height the same as that of the second pulley; the second pulley assembly further includes a sixth pulley, which is connected to the frame body and disposed between the third pulley and the fourth pulley, and has a height the same as that of the fourth pulley; the pull rope assembly further includes a third pull rope, one end of the third pull rope is connected to the load, and the other end of the third pull rope is connected to the transmission member after passing through the fifth pulley and the sixth pulley in sequence.

[0010] In one embodiment, the first limit assembly includes an upward limit member and a downward limit member, both of which are connected to the frame body, and the upward limit member and the downward limit member are arranged at intervals in the vertical direction to form a limit space between the upward limit member and the downward limit member, and the clamping member slides relative to the transmission member so that the clamping member can enter and exit the limit space, and the upward limit member can abut against the clamping member located in the limit space to limit the transmission member from moving in a direction away from the ground, and the downward limit member can abut against the clamping member located in the limit space to limit the transmission member from moving in a direction close to the ground.

[0011] In one embodiment, the second limiting assembly includes a limiting protrusion, which is connected to the frame body, and the clamping member includes a connecting portion and a first roller portion and a second roller portion installed on the connecting portion, the first roller portion and the second roller portion are arranged at intervals to form a clamping space between the first roller portion and the second roller portion, the connecting portion is slidably matched with the transmission member so that the limiting protrusion can enter and exit the clamping space, the first roller portion can abut against the limiting protrusion located in the clamping space to limit the transmission member from moving in a direction close to the ground, and the second roller portion can abut against the limiting protrusion located in the clamping space to limit the transmission member from moving in a direction away from the ground.

[0012] In one embodiment, the clamping member also includes an elastic portion, one end of the elastic portion is connected to the transmission member, and the other end of the elastic portion is connected to the connecting portion. The elastic portion can drive the first roller portion and the second roller portion to move toward the direction close to the limiting protrusion through the connecting portion, so that the limiting protrusion can enter the clamping space.

[0013] In one embodiment, the frame further includes a limit rod, which is connected to the frame body, and is located on the side of the transmission member away from the pulley device. The limit rod can abut against the bottom of the transmission member to limit the movement of the transmission member relative to the frame body in a direction close to the ground.

[0014] In one embodiment, the transmission mechanism further includes a guardrail connected to the transmission member, and the guardrail can abut against materials on the transmission member to limit the materials from sliding out from the end of the transmission member where the guardrail is provided.

[0015] In one embodiment, the load includes a weight body and a first movable pulley group connected to each other, the transmission member includes a rotating portion and a second movable pulley group connected to each other, one end of the pull rope assembly is connected to the first movable pulley group, and the other end of the pull rope assembly is connected to the second movable pulley group after passing through the pulley device.

[0016] The technical solution of the utility model adopts an auxiliary lifting shelf to assist the operator in lifting and transporting materials. When material supply is needed, the clamping fit between the clamping piece and the first limit assembly is released, and the transmission piece is rotated downward to lower the height of the feeding port, which is convenient for the operator to load materials. After the clamping piece is engaged with the second limit assembly, the operator moves the materials on the logistics trolley to the transmission piece. Since the height of the feeding port is lowered, the operator can move the materials on the logistics trolley to the transmission piece more quickly and labor-savingly, reducing the time that the logistics trolley occupies the logistics channel and also reducing the time spent on loading. After the materials are moved to the transmission piece, the clamping piece is moved to release the clamping fit between the clamping piece and the second limit assembly, and the load provides an upward pulling force for the transmission piece through the pull rope assembly, so as to assist the operator in lifting the transmission piece, thereby saving manpower. The operator can lift multiple materials in one lifting action, thereby reducing the time spent on loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A structural schematic diagram of an embodiment of the auxiliary lifting shelf provided by the utility model after loading is completed;

[0019] Figure 2 A structural schematic diagram of an embodiment of the auxiliary lifting shelf provided by the utility model during the loading process;

[0020] Figure 3 A structural schematic diagram of an embodiment of the auxiliary lifting shelf provided by the utility model from another perspective;

[0021] Figure 4 A schematic structural diagram of an embodiment of the present utility model in which the limiting protrusion is located in the clamping space;

[0022] Figure 5 The present invention is a schematic structural diagram of an embodiment of a clamping member provided by the present invention.

[0023] Description of Figure Numbers:

[0024] 100. Auxiliary lifting shelf; 1. Rack; 11. Rack body; 12. First limiting assembly; 121. Upward limiting member; 122. Downward limiting member; 123. Limiting space; 13. Second limiting assembly; 131. Limiting protrusion; 132. Limiting rod; 2. Transmission mechanism; 21. Transmission member; 211. Rotating part; 212. Second movable pulley block; 22. Clamping member; 221. Connecting part; 222. First roller part; 223. Second roller part; 224. Elastic part; 225. Card-connecting space; 23. Guardrail; 3. Lifting auxiliary mechanism; 31. Load; 311. Weight body; 312. First movable pulley group; 32. Pulley device; 321. First pulley assembly; 3211. First pulley; 3212. Second pulley; 3213. Fifth pulley; 322. Second pulley assembly; 3221. Third pulley; 3222. Fourth pulley; 3223. Sixth pulley; 33. Rope assembly; 331. First pull rope; 332. Second pull rope; 333. Third pull rope.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] At present, due to space limitations, the height of the material feeding port is 1150mm from the ground, that is, the slide rail for transporting materials is located at a height of 1150mm from the ground. This requires that when the operator is supplying materials, the material needs to be lifted to the height of the feeding port. During a material replenishment process, the operator needs to lift multiple boxes of materials on the logistics trolley to the feeding port. This process not only consumes a lot of manpower, but also has low operating efficiency, resulting in the occurrence of traffic jams due to the logistics trolleys often occupying the transportation channel, which seriously affects the progress of other projects. The utility model proposes an auxiliary lifting shelf 100.

[0030] See also Figure 1 and Figure 2 In one embodiment of the utility model, the auxiliary lifting shelf 100 includes a frame 1, a transmission mechanism 2 and a lifting auxiliary mechanism 3. The frame 1 includes a frame body 11 and a first limiting assembly 12 and a second limiting assembly 13 installed on the frame body 11; the transmission mechanism 2 includes a transmission member 21 and a clamping member 22, one end of the transmission member 21 is rotatably installed on the frame body 11, and the other end of the transmission member 21 is slidably matched with the clamping member 22, and the clamping member 22 can be clamped and matched with the first limiting assembly 12 or the second limiting assembly 13 to limit the rotation of the transmission member 21 relative to the frame body 11; the lifting auxiliary mechanism 3 includes a load 31, a pulley device 32 and a rope assembly 33, the pulley device 32 is connected to the frame body 11, one end of the rope assembly 33 is connected to the load 31, and the other end of the rope assembly 33 is connected to the transmission member 21 after bypassing the pulley device 32, and the connection position of the pulley device 32 and the frame body 11 is higher than the connection position of the rope assembly 33 and the load 31 and the connection position of the rope assembly 33 and the transmission member 21.

[0031] The technical solution of the utility model adopts the auxiliary lifting shelf 100 to assist the operator in lifting and transporting materials. When material supply is needed, the operator moves the clamping member 22 to release the clamping fit between the clamping member 22 and the first limit assembly 12, and rotates the transmission member 21 downward to lower the height of the feed port, which is convenient for the operator to load materials. After the clamping member 22 is engaged with the second limit assembly 13, the operator moves the materials on the logistics trolley to the transmission member 21. Since the height of the feed port is lowered, the operator can move the materials more quickly and with less effort. The material on the logistics trolley is moved to the transmission member 21, which reduces the time that the logistics trolley occupies the logistics channel and also reduces the time spent on loading. After the material is moved to the transmission member 21, the clamping member 22 is moved to release the clamping fit between the clamping member 22 and the second limit assembly 13. The load 31 provides an upward pulling force to the transmission member 21 through the pull rope assembly 33 to assist the operator in lifting the transmission member 21, thereby saving manpower. The operator can lift multiple materials in one lifting action, thereby reducing the time spent on loading. It should be noted that the load 31 can be any heavy object. The mass of the load 31 is generally compatible with the mass of the transmission member 21. The mass of the load 31 can be equal to the mass of the transmission member 21 or greater than the mass of the transmission member 21. The role of the load 31 here is to reduce the force spent by the operator in lifting the transmission member 21 loaded with materials, so that the operator can lift multiple materials more easily, solving the problem of difficulty in loading operations caused by space limitations. It should also be noted that the frame body 11 is an aluminum alloy bracket, and all joints of the aluminum alloy bracket are fixed by connecting aluminum alloy pipes using L-shaped joints.

[0032] According to an embodiment of the utility model, the clamping member 22 is a positioning pin, the first limiting component 12 is a first positioning hole, the second limiting component 13 is a second positioning hole, the positioning pin can be clamped and matched with the first positioning hole, and the positioning pin can also be clamped and matched with the second positioning hole.

[0033] According to another embodiment of the present invention, the mass of the load 31 is 16 kg.

[0034] In one embodiment, the pulley device 32 includes a first pulley assembly 321 and a second pulley assembly 322, both of which are connected to the frame body 11, the first pulley assembly 321 and the load 31 are arranged at intervals in the vertical direction, the second pulley assembly 322 and the first pulley assembly 321 are arranged at intervals along the material transmission direction of the transmission member 21, and the end of the pull rope assembly 33 away from the load 31 passes through the first pulley assembly 321 and the second pulley assembly 322 in sequence and then connects to the transmission member 21. By setting the first pulley assembly 321 and the second pulley assembly 322 to change the direction of the force, the gravity generated by the load 31 can be converted into an upward pulling force acting on the transmission member 21 through the pull rope assembly 33, the first pulley assembly 321 and the second pulley assembly 322, that is, by changing the direction of the force, the magnitude of the upward force acting on the transmission member 21 by the load 31 is increased, so as to better assist the operator in lifting materials. It should be noted that the material transmission direction of the transmission member 21 is Figure 1 Left to right direction shown.

[0035] In one embodiment, the first pulley assembly 321 includes a first pulley 3211 and a second pulley 3212 arranged at intervals along the material transmission direction of the transmission member 21, the first pulley 3211 and the second pulley 3212 are both connected to the frame body 11, and the height of the second pulley 3212 is higher than the height of the first pulley 3211; the second pulley assembly 322 includes a third pulley 3221 and a fourth pulley 3222 arranged at intervals along the material transmission direction of the transmission member 21, and the third pulley 3221 and the fourth pulley 3222 are both connected to the frame body 11. The fourth pulley 3222 is lower than the third pulley 3221 in height, the pull rope assembly 33 includes a first pull rope 331 and a second pull rope 332, one end of the first pull rope 331 is connected to the load 31, the other end of the first pull rope 331 is connected to the transmission member 21 after bypassing the first pulley 3211 and the fourth pulley 3222 in sequence, one end of the second pull rope 332 is connected to the load 31, the other end of the second pull rope 332 is connected to the transmission member 21 after bypassing the second pulley 3212 and the third pulley 3221 in sequence. The material transmission direction is from left to right. Since one end of the transmission member 21 is rotatably connected to the frame body 11, when the transmission member 21 rotates relative to the frame body 11, the height changes of each point on the transmission member 21 along the material transmission direction are not the same. The closer the point is to the rotation center, the smaller the height change is. Therefore, in order to adapt to this situation, the height of the first pulley 3211 and the fourth pulley 3222 is lowered, and the first pull rope 331 is connected to the transmission member 21 after bypassing the first pulley 3211 and the fourth pulley 3222, so as to adapt to the height position change of the transmission member 21 at this point. By setting two pull ropes to pull the transmission member 21 to move, the reliability of the connection between the load 31 and the transmission member 21 is increased. It should be noted that the length of the first pull rope 331 is less than the length of the second pull rope 332, and the connection between the first pull rope 331 and the transmission member 21 is closer to the rotation center of the transmission member 21 than the connection between the second pull rope 332 and the transmission member 21.

[0036] In one embodiment, the first pulley assembly 321 also includes a fifth pulley 3213, which is connected to the frame body 11 and is disposed between the first pulley 3211 and the second pulley 3212, and the height of the fifth pulley 3213 is the same as that of the second pulley 3212. The second pulley assembly 322 includes a sixth pulley 3223, which is connected to the frame body 11 and is disposed between the third pulley 3221 and the fourth pulley 3222, and the height of the sixth pulley 3223 is the same as that of the fourth pulley 3222. The rope assembly 33 also includes a third rope 333, one end of the third rope 333 is connected to the load 31, and the other end of the third rope 333 is connected to the transmission member 21 after passing through the fifth pulley 3213 and the sixth pulley 3223 in sequence. The fifth pulley 3213, the sixth pulley 3223 and the third pull rope 333 are provided so that when the second pull rope 332 breaks, the transmission member 21 can still be assisted in lifting by the fifth pulley 3213, the sixth pulley 3223 and the third pull rope 333, thereby further improving the reliability of the auxiliary lifting shelf 100.

[0037] In one embodiment, the first limit assembly 12 includes an upward limit member 121 and a downward limit member 122, and the upward limit member 121 and the downward limit member 122 are both connected to the frame body 11, and the upward limit member 121 and the downward limit member 122 are arranged at intervals in the vertical direction to form a limit space 123 between the upward limit member 121 and the downward limit member 122, and the clamping member 22 slides relative to the transmission member 21 so that the clamping member 22 can enter and exit the limit space 123, and the upward limit member 121 can abut against the clamping member 22 located in the limit space 123 to limit the transmission member 21 from moving away from the ground, and the downward limit member 122 can abut against the clamping member 22 located in the limit space 123 to limit the transmission member 21 from moving toward the ground. The clamping member 22 slides relative to the transmission member 21, so that it can enter and exit the limiting space 123. The clamping member 22 located in the limiting space 123 moves upward and abuts against the upward limiting member 121, so that it cannot continue to move upward. The clamping member 22 located in the limiting space 123 moves downward and abuts against the downward limiting member 122, so that it cannot continue to move downward, thereby limiting the rotation of the transmission member 21 relative to the frame body 11, so that the material can be stably transported on the transmission member 21.

[0038] See also Figure 2 , Figure 4 and Figure 5In one embodiment, the second limiting assembly 13 includes a limiting protrusion 131, which is connected to the frame body 11. The clamping member 22 includes a connecting portion 221 and a first roller portion 222 and a second roller portion 223 installed on the connecting portion 221. The first roller portion 222 and the second roller portion 223 are arranged at intervals so that a clamping space 225 is formed between the first roller portion 222 and the second roller portion 223. The connecting portion 221 is slidably matched with the transmission member 21 so that the limiting protrusion 131 can enter and exit the clamping space 225. The first roller portion 222 can abut against the limiting protrusion located in the clamping space 225 to limit the transmission member 21 from moving in a direction close to the ground. The second roller portion 223 can abut against the limiting protrusion located in the clamping space 225 to limit the transmission member 21 from moving in a direction away from the ground. The connecting portion 221 slides relative to the transmission member 21 so that the limiting protrusion 131 can enter and exit the clamping space 225. When the limiting protrusion 131 enters the clamping space 225, the transmission member 21 moves upward so that the limiting protrusion 131 abuts against the second roller portion 223, thereby preventing it from moving upward. The transmission member 21 moves downward so that the limiting protrusion 131 abuts against the first roller portion 222, thereby preventing it from moving downward, thereby limiting the rotation of the transmission member 21 relative to the frame body 11, so that the operator can smoothly move the material from the logistics trolley to the transmission member 21. The limiting protrusion 131 can be a limiting rod 132 or a limiting block.

[0039] In one embodiment, the frame 1 further includes a limit rod 132, which is connected to the frame body 11 and is located on the side of the transmission member 21 away from the pulley device 32. The limit rod 132 can abut against the bottom of the transmission member 21 to limit the movement of the transmission member 21 in a direction close to the ground relative to the frame body 11. The limit rod 132 is provided to limit the downward rotation stroke of the transmission member 21, and the second roller portion 223 abuts against the limit protrusion 131 to limit the upward rotation of the transmission member 21, so that the operator can move the material to the transmission member 21.

[0040] In one embodiment, the clamping member 22 also includes an elastic portion 224, one end of the elastic portion 224 is connected to the transmission member 21, and the other end of the elastic portion 224 is connected to the connecting portion 221. The elastic portion 224 can drive the first roller portion 222 and the second roller portion 223 to move toward the direction close to the limiting protrusion 131 through the connecting portion 221, so that the limiting protrusion 131 can enter the clamping space 225. By setting the elastic part 224, the elastic part 224 can drive the first roller part 222 and the second roller part 223 to move in the material transmission direction through the connecting part 221. When the limiting protrusion 131 is located in the clamping space 225, the force provided by the elastic part 224 can make the limiting protrusion difficult to escape from the clamping space 225; when the clamping part 22 moves to the height of the limiting space 123, the force provided by the elastic part 224 can drive the first roller part 222 and the second roller part 223 to enter the limiting space 123, so that the first roller part 222 and the second roller part 223 are difficult to escape from the limiting space 123.

[0041] See also Figures 1 to 3 In one embodiment, the transmission mechanism 2 further includes a guardrail 23, which is connected to the transmission member 21. The guardrail 23 can abut against the material on the transmission member 21 to limit the material from sliding out from the end of the transmission member 21 where the guardrail 23 is provided. The guardrail 23 is provided to limit the material from sliding out from the transmission member 21 to the left and injuring the operator.

[0042] In one embodiment, the load 31 includes a weight body 311 and a first movable pulley group 312 connected to each other, the transmission member 21 includes a rotating portion 211 and a second movable pulley group 212 connected to each other, one end of the pull rope assembly 33 is connected to the first movable pulley group 312, and the other end of the pull rope assembly 33 is connected to the second movable pulley group 212 after passing through the pulley device 32. The first movable pulley group 312 and the second movable pulley group 212 are provided to facilitate the connection of the pull rope assembly 33.

[0043] According to an embodiment of the present invention, the transmission member 21 is further provided with a pulley belt and a transmission groove to facilitate the transmission of materials.

[0044] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An auxiliary lifting shelf, characterized in that: include: A frame, the frame comprising a frame body and a first limit assembly and a second limit assembly mounted on the frame body; A transmission mechanism, the transmission mechanism comprising a transmission member and a clamping member, one end of the transmission member is rotatably mounted on the frame body, the other end of the transmission member is slidably engaged with the clamping member, and the clamping member can be engaged with the first limiting assembly or the second limiting assembly to limit the transmission member from rotating relative to the frame body; A lifting auxiliary mechanism, the lifting auxiliary mechanism includes a load, a pulley device and a pull rope assembly, the pulley device is connected to the frame body, one end of the pull rope assembly is connected to the load, and the other end of the pull rope assembly is connected to the transmission member after passing through the pulley device, and the connection position of the pulley device and the frame body is higher than the connection position of the pull rope assembly and the load and the connection position of the pull rope assembly and the transmission member.

2. The auxiliary lifting shelf according to claim 1, characterized in that: The pulley device includes a first pulley assembly and a second pulley assembly, the first pulley assembly and the second pulley assembly are both connected to the frame body, the first pulley assembly and the load are arranged at intervals in the vertical direction, the second pulley assembly and the first pulley assembly are arranged at intervals along the material transmission direction of the transmission member, and the end of the pull rope assembly away from the load bypasses the first pulley assembly and the second pulley assembly in sequence and then is connected to the transmission member.

3. The auxiliary lifting shelf according to claim 2, characterized in that: The first pulley assembly includes a first pulley and a second pulley arranged at intervals along the material transmission direction of the transmission member, the first pulley and the second pulley are both connected to the frame body, and the height of the second pulley is higher than that of the first pulley; the second pulley assembly includes a third pulley and a fourth pulley arranged at intervals along the material transmission direction of the transmission member, the third pulley and the fourth pulley are both connected to the frame body, and the height of the fourth pulley is lower than that of the third pulley, the pull rope assembly includes a first pull rope and a second pull rope, one end of the first pull rope is connected to the load, and the other end of the first pull rope is connected to the transmission member after bypassing the first pulley and the fourth pulley in sequence, one end of the second pull rope is connected to the load, and the other end of the second pull rope is connected to the transmission member after bypassing the second pulley and the third pulley in sequence.

4. The auxiliary lifting shelf according to claim 3, characterized in that: The first pulley assembly also includes a fifth pulley, which is connected to the frame body and arranged between the first pulley and the second pulley, and the height of the fifth pulley is the same as that of the second pulley. The second pulley assembly includes a sixth pulley, which is connected to the frame body and arranged between the third pulley and the fourth pulley, and the height of the sixth pulley is the same as that of the fourth pulley. The pull rope assembly also includes a third pull rope, one end of the third pull rope is connected to the load, and the other end of the third pull rope is connected to the transmission member after passing through the fifth pulley and the sixth pulley in sequence.

5. The auxiliary lifting shelf according to any one of claims 1 to 4, characterized in that: The first limit assembly includes an upward limit piece and a downward limit piece, both of which are connected to the frame body, and the upward limit piece and the downward limit piece are arranged at intervals in the vertical direction to form a limit space between the upward limit piece and the downward limit piece, and the clamping piece slides relative to the transmission piece so that the clamping piece can enter and exit the limit space, and the upward limit piece can abut against the clamping piece located in the limit space to limit the transmission piece from moving in a direction away from the ground, and the downward limit piece can abut against the clamping piece located in the limit space to limit the transmission piece from moving in a direction close to the ground.

6. The auxiliary lifting shelf according to any one of claims 1 to 4, characterized in that: The second limiting assembly includes a limiting protrusion, which is connected to the frame body, and the clamping member includes a connecting portion and a first roller portion and a second roller portion installed on the connecting portion, the first roller portion and the second roller portion are arranged at intervals to form a clamping space between the first roller portion and the second roller portion, the connecting portion is slidably matched with the transmission member so that the limiting protrusion can enter and exit the clamping space, the first roller portion can abut against the limiting protrusion located in the clamping space to limit the transmission member from moving in a direction close to the ground, and the second roller portion can abut against the limiting protrusion located in the clamping space to limit the transmission member from moving in a direction away from the ground.

7. The auxiliary lifting shelf according to claim 6, characterized in that: The second limiting assembly also includes a limiting rod, which is connected to the frame body and is located on the side of the transmission member away from the pulley device. The limiting rod can abut against the bottom of the transmission member to limit the movement of the transmission member relative to the frame body in a direction close to the ground.

8. The auxiliary lifting shelf according to claim 6, characterized in that: The clamping member also includes an elastic portion, one end of which is connected to the transmission member, and the other end of which is connected to the connecting portion. The elastic portion can drive the first roller portion and the second roller portion to move toward the direction close to the limiting protrusion through the connecting portion, so that the limiting protrusion can enter the clamping space.

9. The auxiliary lifting shelf according to any one of claims 1 to 4, characterized in that: The transmission mechanism further comprises a guardrail, which is connected to the transmission member. The guardrail can abut against the material on the transmission member to limit the material from sliding out from the end of the transmission member where the guardrail is arranged.

10. The auxiliary lifting shelf according to any one of claims 1 to 4, characterized in that: The load includes a weight body and a first movable pulley group connected to each other, the transmission member includes a rotating part and a second movable pulley group connected to each other, one end of the pull rope assembly is connected to the first movable pulley group, and the other end of the pull rope assembly is connected to the second movable pulley group after passing through the pulley device.

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