CN220642418U

CN220642418U - Material lifting device

Info

Publication number: CN220642418U
Application number: CN202322319774.8U
Authority: CN
Inventors: 杨文松; 袁倩; 万云
Original assignee: Ningxia Coal Capital Construction Co; National Energy Group Ningxia Coal Industry Co Ltd
Current assignee: Ningxia Coal Capital Construction Co; National Energy Group Ningxia Coal Industry Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-22
Anticipated expiration: 2033-08-28

Abstract

The utility model provides a material lifting device, comprising: a loading rack; the carrying part is arranged on the loading frame in a lifting manner, two ends of the carrying part are respectively in sliding fit with two corresponding inner walls of the loading frame, and the carrying part is used for loading materials; the supporting part comprises a supporting seat, a limiting structure and a plurality of groups of supporting structures, wherein the supporting seat is connected with the bottom of the loading frame, the supporting seat and the supporting structures are in contact with the ground, the supporting structures are rotatably arranged on the supporting seat at intervals, the supporting structures are used for increasing the contact area between the supporting seat and the ground, the limiting structure is sleeved on the supporting seat in a lifting manner, and the limiting structure is in limiting fit with the supporting structure to limit the position of the supporting structure. By the technical scheme provided by the utility model, the problem that the material lifting device is unstable due to the fact that the contact area between the base and the ground is small in the prior art can be solved.

Description

Material lifting device

Technical Field

The utility model relates to the technical field of material transportation, in particular to a material lifting device.

Background

At present, the material lifting device refers to a device for transporting materials from a low place to a high place, such as a lifting device for building engineering, which is disclosed in Chinese patent application publication No. CN217051488U, and is designed by connecting a plurality of movable rods, mounting seats, a storage table and other mechanisms by utilizing a connecting rotating shaft, connecting the two mounting seats by using a transmission shaft provided with a first connecting thread and a second connecting thread, wherein the rotation directions of the first connecting thread and the second connecting thread are opposite, and the mounting seats slide in the supporting seats, so that a user only needs to control the state of a driving motor to drive the transmission shaft to rotate, and the material lifting for the building engineering can be realized. However, when the material lifting device is used, the contact area between the base and the ground is small, so that the problem of unstable device can occur.

Disclosure of Invention

The utility model provides a material lifting device, which aims to solve the problem that the material lifting device is unstable due to the fact that the contact area between a base and the ground is small in the prior art.

In order to solve the above problems, the present utility model provides a material lifting device, comprising: a loading rack; the carrying part is arranged on the loading frame in a lifting manner, two ends of the carrying part are respectively in sliding fit with two corresponding inner walls of the loading frame, and the carrying part is used for loading materials; the supporting part comprises a supporting seat, a limiting structure and a plurality of groups of supporting structures, wherein the supporting seat is connected with the bottom of the loading frame, the supporting seat and the supporting structures are in contact with the ground, the supporting structures are rotatably arranged on the supporting seat at intervals, the supporting structures are used for increasing the contact area between the supporting seat and the ground, the limiting structure is sleeved on the supporting seat in a lifting manner, and the limiting structure is in limiting fit with the supporting structure to limit the position of the supporting structure.

Further, the group of support structures comprises a first support piece and a second support piece, the support seat is provided with a first accommodating groove and a second accommodating groove, the first support piece and the second support piece are both rotatably arranged, the support structures are provided with an avoidance position and a unfolding position, when in the avoidance position, the first support piece is positioned in the first accommodating groove, and the second support piece is positioned in the second accommodating groove; when the support is in the unfolding position, the first supporting piece is located outside the first accommodating groove, the first supporting piece and the supporting seat are perpendicular to each other, the second supporting piece is located outside the second accommodating groove, and the second supporting piece and the supporting seat are perpendicular to each other.

Further, the first supporting piece comprises a rotating shaft and a supporting plate, the rotating shaft is connected with the supporting seat and is positioned in the first accommodating groove, the supporting plate is rotatably arranged on the rotating shaft, and when the supporting plate is at the avoiding position, the supporting plate is positioned in the first accommodating groove; when the support plate is in the unfolding position, the support plate is positioned outside the first accommodating groove, and the support plate and the support seat are mutually perpendicular.

Further, limit structure includes stop collar and coupling assembling, and the supporting seat has the spout, and the stop collar is connected with coupling assembling, and the stop collar cover is established on the supporting seat, and coupling assembling is located the spout, and the stop collar liftable ground sets up to drive coupling assembling and go up and down in the spout, stop collar and the spacing cooperation of supporting structure.

Further, coupling assembling includes connecting block, guide bar and elastic component, and the stop collar is connected with the connecting block, and two inner wall connections that the both ends of guide bar correspond with the spout respectively, but the connecting block slip cap is established on the guide bar, and the elastic component cover is established on the guide bar, and the one end and the inner wall connection of spout of elastic component, the other end and the connecting block of elastic component are connected.

Further, the limit structure is provided with a plurality of groups of limit grooves, one group of limit grooves comprises a first limit groove and a second limit groove, when the limit structure is unfolded, the first support piece is located in the first limit groove, the second support piece is located in the second limit groove, and the plurality of groups of limit grooves and the plurality of groups of support structures are arranged in a one-to-one correspondence manner.

Further, the carrying part comprises a carrying frame and a lifting structure, the lifting structure is arranged on the carrying frame, two ends of the carrying frame are respectively in sliding fit with two inner walls corresponding to the carrying frame, the lifting structure is in driving connection with the carrying frame, and the lifting structure drives the carrying frame to lift.

Further, carry thing frame includes framework, limiting plate, baffle, arm-tie and locking structure, and the limiting plate sets up in the framework, and the baffle is located between limiting plate and the framework, and the arm-tie is connected with the baffle, and the arm-tie slidable ground sets up, and the arm-tie passes through locking structure and the outer wall detachable connection of framework, and the framework is used for loading the material.

Further, the locking structure comprises a fixed shaft, a locking rod and a locking piece, wherein the fixed shaft is connected with the pulling plate, the locking rod is connected with the outer wall of the frame body, one end of the locking piece is rotationally connected with the fixed shaft, and the other end of the locking piece is in limit fit with the locking rod.

Further, the lifting structure comprises a driving motor, a screw rod and a lifting frame, wherein an output shaft of the driving motor is connected with the screw rod, two ends of the lifting frame are respectively connected with two ends of the screw rod in a threaded mode, the driving motor drives the screw rod to rotate, the screw rod drives the lifting frame to lift, and the object carrying frame is arranged on the lifting frame.

By applying the technical scheme of the utility model, the utility model provides a material lifting device, which comprises: a loading rack; the carrying part is arranged on the loading frame in a lifting manner, two ends of the carrying part are respectively in sliding fit with two corresponding inner walls of the loading frame, and the carrying part is used for loading materials; the supporting part comprises a supporting seat, a limiting structure and a plurality of groups of supporting structures, wherein the supporting seat is connected with the bottom of the loading frame, the supporting seat and the supporting structures are in contact with the ground, the supporting structures are rotatably arranged on the supporting seat at intervals, the supporting structures are used for increasing the contact area between the supporting seat and the ground, the limiting structure is sleeved on the supporting seat in a lifting manner, and the limiting structure is in limiting fit with the supporting structure to limit the position of the supporting structure. By adopting the scheme, a plurality of groups of supporting structures are arranged and are rotatably arranged on the supporting seat at intervals, so that when the supporting structures rotate to preset positions, the purpose of increasing the contact area between the supporting seat and the ground can be achieved, the stability of the supporting seat during supporting is improved, and the problem that in the prior art, the contact area between the base and the ground is small, so that the material lifting device is unstable is effectively solved; the limiting structure is sleeved on the supporting seat in a lifting manner and is in limiting fit with the supporting structure, so that the position of the supporting structure can be limited, and the supporting structure is prevented from shaking randomly; the carrying part is arranged on the loading frame in a lifting manner, so that materials can be conveyed to a designated position.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic view of a material lifting device according to an embodiment of the present utility model;

FIG. 2 shows an enlarged partial cross-sectional view of the position A of FIG. 1;

FIG. 3 shows a partial enlarged view of the position B in FIG. 1;

FIG. 4 shows a schematic view of the support structure of FIG. 1 in a deployed position;

FIG. 5 shows a side view of the material lifting device of FIG. 1;

FIG. 6 illustrates a bottom view of the support structure of FIG. 1 in a deployed position;

FIG. 7 illustrates a bottom view of the support structure of FIG. 1 in an avoidance position;

fig. 8 shows a schematic structural view of the carrying frame in fig. 1.

Wherein the above figures include the following reference numerals:

10. a loading rack;

20. a carrying part; 21. a carrying frame; 211. a frame; 212. a limiting plate; 213. a baffle; 214. pulling a plate; 215. a locking structure; 2151. a fixed shaft; 2152. a locking lever; 2153. a locking member; 22. a lifting structure; 221. a driving motor; 222. a lifting frame;

30. a support part; 31. a support base; 311. a first accommodation groove; 312. a second accommodation groove; 313. a chute; 32. a limit structure; 321. a limit sleeve; 322. a connection assembly; 3221. a connecting block; 3222. a guide rod; 3223. an elastic member; 323. a limit groove; 3231. a first limit groove; 3232. the second limit groove; 33. a support structure; 331. a first support; 3311. a rotating shaft; 3312. a support plate; 332. and a second support.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 8, an embodiment of the present utility model provides a material lifting device, including: a loading rack 10; the carrying part 20 is arranged on the loading frame 10 in a lifting manner, two ends of the carrying part 20 are respectively in sliding fit with two inner walls corresponding to the loading frame 10, and the carrying part 20 is used for loading materials; the supporting part 30, the supporting part 30 includes supporting seat 31, limit structure 32 and multiunit bearing structure 33, the bottom of supporting seat 31 and loading frame 10 is connected, supporting seat 31, bearing structure 33 all contacts with ground, multiunit bearing structure 33 rotationally separates the setting on supporting seat 31, bearing structure 33 is used for increasing the area of contact of supporting seat 31 and ground, limit structure 32 liftable cover is established on supporting seat 31, limit structure 32 and bearing structure 33 limit fit to inject the position of bearing structure 33.

By adopting the scheme, the plurality of groups of supporting structures 33 are arranged and rotatably arranged on the supporting seat 31 at intervals, so that when the supporting structures 33 rotate to a preset position, the purpose of increasing the contact area between the supporting seat 31 and the ground can be achieved, the stability of the supporting seat 31 in supporting is improved, and the problem that in the prior art, the contact area between the base and the ground is small, so that the material lifting device is unstable is effectively solved; the limiting structure 32 is sleeved on the supporting seat 31 in a lifting manner and is in limiting fit with the supporting structure 33, so that the position of the supporting structure 33 can be limited, and the supporting structure 33 is prevented from shaking randomly; wherein, the carrying part 20 is arranged on the loading frame 10 in a lifting manner, so that the materials can be conveyed to a designated position.

Wherein, the group of support structures 33 includes a first support 331 and a second support 332, the support seat 31 has a first accommodating groove 311 and a second accommodating groove 312, the first support 331 and the second support 332 are both rotatably disposed, the support structures 33 have an avoidance position and a deployment position, in the avoidance position, the first support 331 is located in the first accommodating groove 311, and the second support 332 is located in the second accommodating groove 312; in the unfolded position, the first supporting member 331 is located outside the first accommodating groove 311, the first supporting member 331 and the supporting seat 31 are perpendicular to each other, the second supporting member 332 is located outside the second accommodating groove 312, and the second supporting member 332 and the supporting seat 31 are perpendicular to each other.

With the arrangement mode, when the material lifting device needs to move, the first supporting piece 331 is located in the first accommodating groove 311, and the second supporting piece 332 is located in the second accommodating groove 312; when the support is in the unfolded position, the first supporting member 331 is located outside the first accommodating groove 311, the first supporting member 331 and the supporting seat 31 are perpendicular to each other, the second supporting member 332 is located outside the second accommodating groove 312, and the second supporting member 332 and the supporting seat 31 are perpendicular to each other, so that the contact area between the supporting seat 31 and the ground can be increased to the greatest extent by the first supporting member 331 and the second supporting member 332, and the stability of the supporting seat 31 is improved.

In this embodiment, the first support 331 includes a rotating shaft 3311 and a support plate 3312, where the rotating shaft 3311 is connected to the support seat 31 and is located in the first accommodating groove 311, and the support plate 3312 is rotatably disposed on the rotating shaft 3311, and in the avoidance position, the support plate 3312 is located in the first accommodating groove 311; in the unfolded position, the support plate 3312 is positioned outside the first receiving groove 311, and the support plate 3312 and the support base 31 are perpendicular to each other.

The support plate 3312 is rotatably provided on the rotation shaft 3311 so that an operator can rotate the support plate 3312 to a desired position, i.e., a retracted position or a deployed position, according to actual needs.

Specifically, the limiting structure 32 comprises a limiting sleeve 321 and a connecting component 322, the supporting seat 31 is provided with a sliding groove 313, the limiting sleeve 321 is connected with the connecting component 322, the limiting sleeve 321 is sleeved on the supporting seat 31, the connecting component 322 is located in the sliding groove 313, and the limiting sleeve 321 is arranged in a liftable manner so as to drive the connecting component 322 to lift in the sliding groove 313, and the limiting sleeve 321 is in limiting fit with the supporting structure 33.

In this scheme, the operator can slide stop collar 321 from top to bottom to drive coupling assembling 322 and go up and down in spout 313, when dodging the position, the inner wall of stop collar 321 and bearing structure 33 spacing cooperation, in order to inject bearing structure 33 in first holding tank 311.

Wherein, coupling assembling 322 includes connecting block 3221, guide bar 3222 and elastic component 3223, and stop collar 321 is connected with connecting block 3221, and guide bar 3222's both ends are connected with two inner walls that the spout 313 corresponds respectively, and connecting block 3221 slidable sleeve is established on guide bar 3222, and elastic component 3223 cover is established on guide bar 3222, and elastic component 3223's one end and the inner wall connection of spout 313, elastic component 3223's the other end and connecting block 3221 are connected.

When the limiting sleeve 321 slides upwards, the limiting sleeve 321 drives the connecting block 3221 to slide upwards on the guide rod 3222, and the connecting block 3221 compresses the elastic piece 3223 at the moment, so that the supporting structure 33 can be avoided, and the supporting structure 33 can be rotated to the unfolding position; after the support structure rotates to the unfolding position, the limiting sleeve 321 is released, and the limiting sleeve 321 is reset by the elasticity released by the elastic piece 3223.

In the present embodiment, the limiting structure 32 has a plurality of sets of limiting grooves 323, the set of limiting grooves 323 includes a first limiting groove 3231 and a second limiting groove 3232, when in the unfolded position, the first supporting member 331 is located in the first limiting groove 3231, the second supporting member 332 is located in the second limiting groove 3232, and the plurality of sets of limiting grooves 323 and the plurality of sets of supporting structures 33 are arranged in a one-to-one correspondence.

By providing the first limit groove 3231 and the second limit groove 3232, the first support 331 and the second support 332 can be limited when in the unfolded position, so as to limit the positions of the first support 331 and the second support 332.

In this embodiment, the carrying part 20 includes a carrying frame 21 and a lifting structure 22, the lifting structure 22 is disposed on the carrying frame 10, two ends of the carrying frame 21 are respectively slidably matched with two corresponding inner walls of the carrying frame 10, the lifting structure 22 is in driving connection with the carrying frame 21, and the lifting structure 22 drives the carrying frame 21 to lift.

The lifting structure 22 is arranged to drive the carrying frame 21 to lift so as to reach the required position.

Wherein, carry thing frame 21 includes framework 211, limiting plate 212, baffle 213, arm-tie 214 and locking structure 215, and limiting plate 212 sets up in framework 211, and baffle 213 is located between limiting plate 212 and the framework 211, and arm-tie 214 and baffle 213 are connected, and arm-tie 214 slidable sets up, and arm-tie 214 passes through locking structure 215 and the outer wall detachable connection of framework 211, and the framework 211 is used for loading the material.

Further, the locking structure 215 includes a fixed shaft 2151, a locking rod 2152 and a locking member 2153, the fixed shaft 2151 is connected with the pulling plate 214, the locking member 2152 is connected with the outer wall of the frame 211, one end of the locking member 2153 is rotatably connected with the fixed shaft 2151, and the other end of the locking member 2153 is in limit fit with the locking member 2152.

When the operator needs to take out the material of placing in the framework 211, the operator promotes retaining member 2153 earlier, make retaining member 2153 rotate through fixed axle 2151, shift out the breach that retaining member 2153 terminal offered from retaining lever 2152 surface, make retaining member 2153 no longer fix fixed axle 2151 and retaining lever 2152 after, the operator pulls arm-tie 214, arm-tie 214 drives baffle 213 and removes between limiting plate 212 and framework 211 inner wall, thereby open the framework 211 front end, after the operator opens the framework 211 front end, the operator discharges the breach that the framework 211 front end was offered again with the material, be convenient for the operator discharge sand form, the quick follow framework 211 of material of stone form, the efficiency of the operator to the material in the framework 211 has been improved.

Optionally, the locking member has a locking groove, and the locking rod is inserted into the locking groove and is in limit fit with the inner wall of the locking groove.

The lifting structure 22 comprises a driving motor 221, a screw and a lifting frame 222, wherein an output shaft of the driving motor 221 is connected with the screw, two ends of the lifting frame 222 are respectively connected with two ends of the screw in a threaded mode, the driving motor 221 drives the screw to rotate, the screw drives the lifting frame 222 to lift, and the carrying frame 21 is arranged on the lifting frame 222.

In this way, the driving motor 221 drives the screw to rotate, and since the two ends of the screw are provided with threads with different rotation directions, the two ends of the lifting frame 222 are respectively in threaded connection with the two ends of the screw, and thus when the screw rotates, the lifting frame 222 can be driven to lift, so that the object carrying frame 21 is driven to lift.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A material lifting device, comprising:

a loading rack (10);

the carrying part (20) is arranged on the loading frame (10) in a lifting manner, two ends of the carrying part (20) are respectively in sliding fit with two corresponding inner walls of the loading frame (10), and the carrying part (20) is used for loading materials;

the supporting part (30), supporting part (30) include supporting seat (31), limit structure (32) and multiunit bearing structure (33), supporting seat (31) with the bottom of loading frame (10) is connected, supporting seat (31) bearing structure (33) all contact with ground, multiunit bearing structure (33) rotationally the interval sets up on supporting seat (31), bearing structure (33) are used for increasing the area of contact of supporting seat (31) and ground, limit structure (32) liftable cover is established on supporting seat (31), limit structure (32) with limit cooperation of bearing structure (33) is in order to inject the position of bearing structure (33).

2. The material lifting device according to claim 1, characterized in that a set of the support structures (33) comprises a first support (331) and a second support (332), the support base (31) having a first receiving groove (311) and a second receiving groove (312), the first support (331) and the second support (332) each being rotatably arranged, the support structures (33) having an evasive position in which the first support (331) is located in the first receiving groove (311) and an extended position in which the second support (332) is located in the second receiving groove (312); when in the unfolding position, the first supporting piece (331) is located outside the first accommodating groove (311), the first supporting piece (331) and the supporting seat (31) are perpendicular to each other, the second supporting piece (332) is located outside the second accommodating groove (312), and the second supporting piece (332) and the supporting seat (31) are perpendicular to each other.

3. The material lifting device according to claim 2, characterized in that the first support (331) comprises a rotation shaft (3311) and a support plate (3312), the rotation shaft (3311) being connected to the support base (31) and being located in the first receiving groove (311), the support plate (3312) being rotatably arranged on the rotation shaft (3311), the support plate (3312) being located in the first receiving groove (311) in the avoidance position; in the unfolded position, the support plate (3312) is positioned outside the first accommodating groove (311), and the support plate (3312) and the support seat (31) are perpendicular to each other.

4. The material lifting device according to claim 2, wherein the limiting structure (32) comprises a limiting sleeve (321) and a connecting component (322), the supporting seat (31) is provided with a sliding groove (313), the limiting sleeve (321) is connected with the connecting component (322), the limiting sleeve (321) is sleeved on the supporting seat (31), the connecting component (322) is positioned in the sliding groove (313), and the limiting sleeve (321) is arranged in a lifting manner so as to drive the connecting component (322) to lift in the sliding groove (313), and the limiting sleeve (321) is in limiting fit with the supporting structure (33).

5. The material lifting device according to claim 4, wherein the connecting assembly (322) comprises a connecting block (3221), a guide rod (3222) and an elastic piece (3223), the limiting sleeve (321) is connected with the connecting block (3221), two ends of the guide rod (3222) are respectively connected with two corresponding inner walls of the sliding groove (313), the connecting block (3221) is slidably sleeved on the guide rod (3222), the elastic piece (3223) is sleeved on the guide rod (3222), one end of the elastic piece (3223) is connected with the inner wall of the sliding groove (313), and the other end of the elastic piece (3223) is connected with the connecting block (3221).

6. The material lifting device according to claim 2, wherein the limiting structure (32) is provided with a plurality of groups of limiting grooves (323), one group of limiting grooves (323) comprises a first limiting groove (3231) and a second limiting groove (3232), when the material lifting device is in the unfolding position, the first supporting piece (331) is located in the first limiting groove (3231), the second supporting piece (332) is located in the second limiting groove (3232), and the plurality of groups of limiting grooves (323) and the plurality of groups of supporting structures (33) are arranged in a one-to-one correspondence.

7. The material lifting device according to claim 1, wherein the carrying part (20) comprises a carrying frame (21) and a lifting structure (22), the lifting structure (22) is arranged on the carrying frame (10), two ends of the carrying frame (21) are respectively in sliding fit with two corresponding inner walls of the carrying frame (10), the lifting structure (22) is in driving connection with the carrying frame (21), and the lifting structure (22) drives the carrying frame (21) to lift.

8. The material lifting device according to claim 7, wherein the carrying frame (21) comprises a frame body (211), a limiting plate (212), a baffle plate (213), a pulling plate (214) and a locking structure (215), wherein the limiting plate (212) is arranged in the frame body (211), the baffle plate (213) is arranged between the limiting plate (212) and the frame body (211), the pulling plate (214) is connected with the baffle plate (213), the pulling plate (214) is slidably arranged, the pulling plate (214) is detachably connected with the outer wall of the frame body (211) through the locking structure (215), and the frame body (211) is used for carrying materials.

9. The material lifting device according to claim 8, wherein the locking structure (215) comprises a fixed shaft (2151), a locking rod (2152) and a locking member (2153), the fixed shaft (2151) is connected with the pulling plate (214), the locking rod (2152) is connected with an outer wall of the frame body (211), one end of the locking member (2153) is rotatably connected with the fixed shaft (2151), and the other end of the locking member (2153) is in limit fit with the locking rod (2152).

10. The material lifting device according to claim 7, wherein the lifting structure (22) comprises a driving motor (221), a screw rod and a lifting frame (222), an output shaft of the driving motor (221) is connected with the screw rod, two ends of the lifting frame (222) are respectively connected with two ends of the screw rod in a threaded mode, the driving motor (221) drives the screw rod to rotate, the screw rod drives the lifting frame (222) to lift, and the carrying frame (21) is arranged on the lifting frame (222).