Lifting turnover device

Abstract

The utility model discloses a lifting turnover device, which belongs to the technical field of engineering machinery and comprises a lifting truss, a guide rail component, a lifting barrel device and a first limiting device. Wherein the guide rail assemblies are connected to the two sides of the lifting truss, the lifting barrel device is connected to the guide rail assemblies in a clamped mode, and the lifting assembly comprises a first pulley assembly installed on the supporting assembly and connected with the guide rail assemblies in a clamped mode and a constant speed device connected with the first pulley assembly; one end of the first limiting device is used for making rolling contact with the lifting barrel, and the other end of the first limiting device is close to the guide rail assembly and used for abutting against the guide rail assembly through the first limiting device when the lifting barrel device is overturned so as to increase a jacking fulcrum for the lifting barrel and achieve the overturning limiting purpose. The uniform speed device is in sliding fit with the guide rail assembly and used for providing auxiliary sliding capacity for the first pulley assembly. When the lifting bucket is clamped, auxiliary sliding force is provided through the uniform speed device, and a supporting point for limiting the lifting bucket is added during overturning, so that the phenomenon that the lifting bucket is separated from a guide rail is avoided.

Description

Technical Field

[0001] The utility model relates to a lifting and turning device, belonging to the technical field of engineering machinery. Background Art

[0002] The lifting mechanism in existing waste recycling equipment often uses hydraulic transmission to power the entire lifting system. A hydraulic pump drives couplings, gears, chains or cables, and the metal bucket at the end of the chain or cable to lift and flip the trash bucket along a predetermined track. This hydraulic transmission method is used in specific scenarios, especially outdoor use. Due to external factors such as weather, environmental factors, and human interference, as well as uneven distribution of garbage during lifting, the pulleys of existing lifting buckets can become stuck during use, reducing the efficiency of outdoor garbage lifting.

[0003] Secondly, when the trash can is lifted to the flip position, the external force often causes part of the lifting device to leave the lifting track, thus affecting the normal operation of the entire garbage recycling system. Utility Model Content

[0004] Purpose of the utility model: The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a lifting and flipping device. When the first pulley assembly is stuck, the constant speed device continues to slide with the guide rail assembly, and when the lifting bucket device flips, the first limiting device is used to limit the flipped lifting bucket, forming a triangular fixed relationship between the sides of the lifting bucket, thereby increasing the fulcrum for limiting the lifting bucket during flipping, and coping with the phenomenon that the lifting bucket is separated from the guide rail due to the change in torque when the lifting bucket is flipped.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A lifting and turning device, comprising:

[0007] A lifting truss, a guide rail assembly connected to the lifting truss, a lifting bucket device clamped on the guide rail assembly, and a first limiting device installed on the lifting bucket device;

[0008] The lifting bucket device includes: a lifting assembly clamped on the guide rail assembly, a flip assembly clamped on the guide rail assembly, a support assembly connecting the lifting assembly and the flip assembly, and a lifting bucket mounted on the support assembly;

[0009] The lifting assembly includes: a first pulley assembly mounted on the support assembly and engaged with the guide rail assembly, and a speed-constant device connected to the first pulley assembly;

[0010] One end of the first limiting device is used for rolling contact with the lifting bucket, and the other end is close to the guide rail assembly;

[0011] During the sliding cooperation between the lifting bucket device and the guide rail assembly, when the first pulley assembly is stuck, the constant speed device continues to slide with the guide rail assembly, and when the lifting bucket device is flipped, the first limiting device is used to tighten and limit the flipped lifting bucket.

[0012] Optionally, the speed-constant device is a bearing group built into the first pulley assembly; wherein the bearing group includes: a first bearing radially mounted inside the first pulley assembly, a second bearing arranged inside the first bearing and connected to the end of the pulley shaft;

[0013] The outer side surface of the second bearing protrudes from the first bearing and the first pulley assembly and contacts the inner side of the guide rail assembly. When the first pulley assembly of the lifting bucket device is stuck during the sliding cooperation with the guide rail, the second bearing continues to slide with the guide rail to provide auxiliary sliding force to the lifting assembly and play a role in balancing the speed.

[0014] Optionally, the lifting bucket device further includes a driving component mounted on the supporting assembly, and a power end of the driving component is connected to the lifting bucket via a linkage plate, thereby driving the lifting bucket to move away from the first limiting device.

[0015] Optionally, the guide rail assembly includes: two sets of guide rails symmetrically installed on the lifting truss and a first limit block installed on one side of the guide rail and close to the first limit device, which can be used in conjunction with the first limit device to provide a new fixed fulcrum for the lifting bucket during flipping, and to cope with the torque adjustment when the lifting bucket is flipped and extended.

[0016] Optionally, the first limiting device includes: a tightening seat connected to the support assembly, a return spring installed in the tightening seat, a pressure head connecting rod inserted in the return spring and passing through the tightening seat, a tightening head connected to one end of the pressure head connecting rod, a rolling wheel connected to the other end of the pressure head connecting rod and in contact with the side of the lifting bucket, and a tightening plate installed on the pressure head connecting rod and located on one side of the roller;

[0017] When the lifting bucket is away from the first limiting device, the rolling wheel slides along the side of the lifting bucket until it is no longer in contact with the lifting bucket. At this time, under the action of the return spring, the pressure head connecting rod drives the clamping head to move to the first limiting block and abut against it, and the tightening plate is away from the support assembly and tightened against the side of the lifting bucket. Finally, a triangular fixed relationship is formed among the tightening plate, the pressure head connecting rod, the clamping head and the side of the lifting bucket, thereby increasing the fulcrum for limiting the lifting bucket during flipping, and coping with the phenomenon that the lifting bucket is separated from the guide rail due to the change of torque when the lifting bucket is flipped.

[0018] Optionally, a side of the first limiting block close to the first limiting device is a conical surface; a conical groove is provided on a side of the tightening plate facing the first limiting block for adapting the first limiting block to the tightening plate.

[0019] Optionally, the lifting truss further includes: a traction mechanism connected to the lifting truss, two sets of flip slide rails installed on the top of the lifting truss and adapted to the two sets of guide rails, and a sensing device installed on the top of the lifting truss, capable of sensing the position of the lifting bucket;

[0020] The two groups of flip slide rails are arc-shaped and are used to guide the lifting bucket device from longitudinal to transverse operation.

[0021] Optionally, the flip assembly includes: a flip sleeve mounted on the top of the support assembly, two spring seats symmetrically mounted in the middle of the support assembly, a second pulley assembly clamped on the guide rail assembly, a flip bracket connected to the second pulley assembly, two sets of flip springs connecting the flip bracket and the spring seats, a wire connecting block seat mounted on the flip bracket, and a connecting shaft symmetrically connected to the top of the flip bracket and plugged into the flip sleeve;

[0022] The steel wire connecting block seat is connected to the traction mechanism through the traction wire rope, and then the flip assembly is driven to rise and fall on the guide rail assembly under the drive of the traction wire rope. When the flip assembly is lifted, the lifting bucket device is simultaneously driven to move as a whole until it moves to the flip slide rail. The first pulley group changes from longitudinal movement to lateral movement, and the second pulley assembly continues to run longitudinally to make the flip bracket drive the rear end of the support assembly to lift up, completing the flipping action of the lifting bucket.

[0023] Optionally, a second limiting block is further provided on the top of the support assembly, and the second limiting block is located at the front end of the flip sleeve and is used to limit the rotation angle of the flip sleeve.

[0024] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0025] During the sliding cooperation between the lifting bucket device and the guide rail assembly, when the first pulley assembly is stuck, the uniform speed device continues to slide with the guide rail assembly, and when the lifting bucket device flips over, the first limiting device is used to limit the flipped lifting bucket, forming a triangular fixed relationship between the sides of the lifting bucket, and increasing the fulcrum for limiting the lifting bucket during flipping, to deal with the phenomenon that the lifting bucket is separated from the guide rail due to the change in torque when the lifting bucket flips over.

[0026] This structure is simple and compact and can avoid the lifting bucket from getting stuck in outdoor and harsh environments, which reduces the efficiency of outdoor garbage lifting, and avoids the failure caused by the lifting bucket falling off the track when flipping, thereby reducing equipment maintenance and repair costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure shows the overall structure of the lifting and turning device of the utility model;

[0028] Figure 2 The figure shows the structure diagram of the lifting bucket device of the present utility model;

[0029] Figure 3 Shown is a schematic structural diagram of the utility model uniform speed device;

[0030] Figure 4 The figure shows an embodiment of the lifting and turning device of the present utility model;

[0031] Figure 5 Shown is a diagram showing an embodiment of the first limiting device of the present utility model;

[0032] Figure 6 Shown is a schematic structural diagram of the first limiting device of the present utility model;

[0033] Figure 7 Shown is a structural schematic diagram of the lifting truss of the utility model;

[0034] Figure 8 Shown Figure 7 A magnified view of the details.

[0035] In the figure: 1.1 lifting truss, 1.2 guide rail assembly, 1.21 guide rail, 1.22 first limit block, 1.3 lifting bucket device, 1.31 lifting assembly, 1.311 first pulley assembly, 1.312 constant speed device, 1.3121 first bearing, 1.3122 second bearing, 1.3123 pulley shaft, 13.2 flip assembly, 13.21 flip sleeve, 13.22 spring seat, 13.23 second pulley assembly, 13.24 flip bracket, 1 3.25 flip spring, 13.26 wire connecting block seat, 13.27 connecting shaft, 13.3 support assembly, 13.31 second limit block, 13.4 lifting bucket, 1.4 first limit device, 1.41 tightening seat, 1.42 return spring, 1.43 pressure head connecting rod, 1.44 pressure head, 1.45 rolling wheel, 1.46 tightening plate, 1.5 driving component, 1.51 linkage plate, 1.6 traction mechanism, 1.7 flip slide rail, 1.8 sensing device. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0037] This embodiment provides a lifting and turning device, such as Figures 1 to 8 The figure includes: a lifting truss 1.1, a guide rail assembly 1.2, a lifting bucket device 1.3 and a first limiting device 1.4;

[0038] The lifting truss 1.1 is constructed by a plurality of trusses and beams, the guide rail assembly 1.2 is connected to both sides of the lifting truss 1.1, the lifting bucket device 1.3 is clamped on the guide rail assembly 1.2, and the first limiting device 1.4 is installed on the lifting bucket device 1.3, thereby limiting the lifting bucket 13.4;

[0039] The lifting bucket device 1.3 includes: a lifting component 1.31, a turning component 13.2, a supporting component 13.3 and a lifting bucket 13.4;

[0040] The lifting assembly 1.31 is clamped on the guide rail assembly 1.2, and the flip assembly 13.2 is clamped on the guide rail assembly 1.2. One side of the support assembly 13.3 connects the lifting assembly 1.31 and the flip assembly 13.2, and the other side is equipped with a lifting bucket 13.4;

[0041] The lifting assembly 1.31 includes: a first pulley assembly 1.311 and a constant speed device 1.312;

[0042] The first pulley assembly 1.311 is mounted on the support assembly 13.3 and is engaged with the guide rail assembly 1.2. The speed constant device 1.312 is connected to the first pulley assembly 1.311.

[0043] One end of the first limiting device 1.4 is used for rolling contact with the lifting bucket 13.4, and the other end is close to the guide rail assembly 1.2;

[0044] During the sliding cooperation between the lifting bucket device 1.3 and the guide rail assembly 1.2, when the first pulley assembly 1.311 is stuck, the speed-constant device 1.312 continues to slide with the guide rail assembly 1.2, and when the lifting bucket device 1.3 flips over, the first limiting device 1.4 tightens and limits the flipped lifting bucket 13.4.

[0045] Preferably, the speed-constant device 1.312 is a bearing assembly built into the first pulley assembly 1.311; wherein the bearing assembly includes: a first bearing 1.3121 and a second bearing 1.3122;

[0046] The first bearing 1.3121 is radially mounted inside the first pulley assembly 1.311 through a washer, and the second bearing 1.3122 is arranged inside the first bearing 1.3121 through a washer and connected to the end of the pulley shaft 1.3123;

[0047] Furthermore, the outer side surface of the second bearing 1.3122 protrudes beyond the first bearing 1.3121 and the first pulley assembly 1.311 and contacts the inner side of the guide rail assembly 1.2. When the first pulley assembly 1.311 of the lifting bucket device 1.3 is stuck during the sliding engagement with the guide rail 1.21, the second bearing 1.3122 continues to slide with the guide rail 1.21, providing auxiliary sliding force to the lifting assembly 1.31 and playing a role in balancing the speed.

[0048] Preferably, the lifting bucket device 1.3 further includes a driving component 1.5 mounted on the support assembly 13.3, wherein the power end of the driving component 1.5 is connected to the lifting bucket 13.4 via a linkage plate 1.51, thereby driving the lifting bucket 13.4 to move away from the first limiting device 1.4. In this embodiment, the driving component 1.5 is an electric cylinder.

[0049] Preferably, the guide rail assembly 1.2 comprises: a guide rail 1.21 and a first limit block 1.22;

[0050] There are two groups of guide rails 1.21. The two groups of guide rails 1.21 extend longitudinally along the lifting truss 1.1, and the two groups of guide rails 1.21 are symmetrically installed on the lifting truss 1.1. The first limit block 1.22 is installed on one side of the guide rail 1.21 and close to the first limit device 1.4. It can be used in conjunction with the first limit device 1.4 to provide a new fixed fulcrum for the lifting bucket 13.4 during flipping, and to cope with the torque adjustment when the lifting bucket 13.4 is flipped and extended.

[0051] Preferably, the first limiting device 1.4 includes: a tightening seat 1.41, a return spring 1.42, a pressing head connecting rod 1.43, a pressing head 1.44, a rolling wheel 1.45 and a tightening plate 1.46;

[0052] A tightening seat 1.41 is connected to the support assembly 13.3, and includes a return spring 1.42 installed in the tightening seat 1.41, a pressure head connecting rod 1.43 inserted into the return spring 1.42 and extending through the tightening seat 1.41, a tightening head 1.44 connected to one end of the pressure head connecting rod 1.43, a rolling wheel 1.45 connected to the other end of the pressure head connecting rod 1.43 and in contact with the side of the lifting bucket 13.4, and a tightening plate 1.46 installed on the pressure head connecting rod 1.43 and located on one side of the rolling wheel;

[0053] When the lifting bucket 13.4 is away from the first limit device 1.4, the rolling wheel 1.45 slides along the side of the lifting bucket 13.4 until it is no longer in contact with the lifting bucket 13.4. At this time, under the action of the return spring 1.42, the pressure head connecting rod 1.43 drives the clamping head 1.44 to move to the first limit block 1.22 and abut against it, and the tightening plate 1.46 is away from the support assembly 13.3 and tightens the side of the lifting bucket 13.4. Finally, a triangular fixed relationship is formed among the tightening plate 1.46, the pressure head connecting rod 1.43, the clamping head 1.44 and the side of the lifting bucket 13.4, thereby increasing the fulcrum for limiting the lifting bucket 13.4 during flipping, and coping with the phenomenon that the lifting bucket 13.4 is separated from the guide rail 1.21 due to the change in torque when the lifting bucket 13.4 is flipped.

[0054] Preferably, the side of the first limit block 1.22 close to the first limit device 1.4 is a conical surface; the side of the tightening plate 1.46 facing the first limit block 1.22 is provided with a conical groove for adaptation of the first limit block 1.22 and the tightening plate 1.46.

[0055] Preferably, the lifting truss 1.1 further includes: a traction mechanism 1.6, a turning slide rail 1.7 and a sensing device 1.8;

[0056] The traction mechanism 1.6 is connected to the lifting and tilting device via a steel wire rope passing through a fixed pulley assembly at the top of the lifting truss 1.1. Two sets of tilting rails 1.7 are respectively installed at the top of the lifting truss 1.1 and adapted to the two sets of guide rails 1.21. A sensing device 1.8 is installed at the top of the lifting truss 1.1 and is capable of sensing the position of the lifting bucket 13.4. The two sets of tilting rails 1.7 are arc-shaped and are used to guide the lifting bucket device 1.3 from longitudinal to transverse operation. In this embodiment, a laser sensor is used to sense the position of the lifting bucket 13.4. The drive motor and hoisting mechanism of the traction mechanism 1.6 are arranged at the bottom of the lifting truss 1.1. The drive motor drives the hoisting mechanism to wind or release the steel wire rope, which slides along the fixed pulley, thereby causing the lifting bucket 13.4 connected to the end of the steel wire rope to rise or fall along the guide rail assembly 1.2.

[0057] Preferably, the flip assembly 13.2 includes: a flip sleeve 13.21, a spring seat 13.22, a second pulley assembly 13.23, a flip bracket 13.24, a flip spring 13.25, a wire connection block seat 13.26 and a connecting shaft 13.27; the flip sleeve 13.21 is installed on the top of the support assembly 13.3, and the number of spring seats 13.22 and flip springs 13.25 matches. In this embodiment, two groups of spring seats 13.22 and flip springs 13.25 are symmetrically installed on the support assembly 13.3, and the two spring seats 13.21 are installed on the top of the support assembly 13.3. .22 is symmetrically mounted in the middle of the support assembly 13.3, the second pulley assembly 13.23 is clamped on the guide rail assembly 1.2 and is located at the rear end of the first pulley assembly 1.311, the flip bracket 13.24 is connected to the second pulley assembly 13.23 via a pin, two sets of flip springs 13.25 are connected to the flip bracket 13.24 and the spring seat 13.22 respectively, the wire connecting block seat 13.26 is mounted on the flip bracket 13.24, and the connecting shaft 13.27 is symmetrically connected to the top of the flip bracket 13.24 and plugged into the flip shaft sleeve 13.21;

[0058] The steel wire connecting block seat 13.26 is connected to the traction mechanism 1.6 through the traction wire rope, and then the flip assembly 13.2 is driven to rise and fall on the guide rail assembly 1.2 by the traction wire rope. When the flip assembly 13.2 is raised and lowered, the lifting bucket device 1.3 is simultaneously driven to move as a whole until it moves to the flip slide rail 1.7. The first pulley group changes from longitudinal movement to lateral movement, and the second pulley assembly 13.23 continues to run longitudinally to make the flip bracket 13.24 drive the rear end of the support assembly 13.3 to lift, completing the tipping action of the lifting bucket 13.4.

[0059] Preferably, a second limiting block 13.31 is further provided on the top of the supporting assembly 13.3. The second limiting block 13.31 is located at the front end of the flip sleeve 13.21 and is used to limit the rotation angle of the flip sleeve 13.21.

[0060] Working principle:

[0061] The driving motor drives the winch mechanism to wind the wire rope, and the wire rope slides along the fixed pulley, so that the flip assembly 13.2 and the lifting bucket device 1.3 connected to the end of the wire rope rise along the guide rail assembly 1.2. During the sliding cooperation between the lifting bucket device 1.3 and the guide rail assembly 1.2, when the first pulley assembly 1.311 is stuck, it continues to slide with the guide rail 1.21 through the second bearing 1.3122, providing auxiliary sliding force to the lifting assembly 1.31, thereby playing a role in balancing the speed.

[0062] When the lifting bucket device 1.3 is lifted onto the flip slide 1.7, the lifting bucket device 1.3 is guided from longitudinal to transverse operation by the two sets of flip slides 1.7, and the lifting bucket 13.4 is lifted into place by the sensing device 1.8, and the driving component 1.5 is started to drive the lifting bucket 13.4 to perform a horizontal offset movement, so that the lifting bucket 13.4 is away from the first limit device 1.4.

[0063] When the lifting bucket 13.4 gradually moves away from the first limit device 1.4, the rolling wheel 1.45 slides along the side of the lifting bucket 13.4 until it is no longer in contact with the lifting bucket 13.4. At this time, under the action of the return spring 1.42, the pressure head connecting rod 1.43 drives the clamping head 1.44 to move to the first limit block 1.22 and abut against it, and the tightening plate 1.46 moves away from the support assembly 13.3 and presses the side of the lifting bucket 13.4. Finally, a triangular fixed relationship is formed among the tightening plate 1.46, the pressure head connecting rod 1.43, the clamping head 1.44 and the side of the lifting bucket 13.4, so as to increase the fulcrum for limiting the lifting bucket 13.4 during flipping, so as to deal with the phenomenon that the lifting bucket 13.4 is separated from the guide rail 1.21 due to the change of torque when the lifting bucket 13.4 is flipped.

[0064] At this time, the first pulley group changes from longitudinal motion to lateral motion, and the second pulley assembly 13.23 continues to move longitudinally so that the flip bracket 13.24 drives the rear end of the support assembly 13.3 to lift up, completing the overturning action of the lifting bucket 13.4.

[0065] To sum up, in the process of sliding cooperation between the lifting bucket device 1.3 and the guide rail assembly 1.2, when the first pulley assembly 1.311 is stuck, the uniform speed device 1.312 continues to slide with the guide rail assembly 1.2, and when the lifting bucket device 1.3 flips over, the first limiting device 1.4 is used to limit the flipped lifting bucket 13.4, forming a triangular fixed relationship between the side surfaces of the lifting bucket 13.4, and realizing an additional fulcrum for limiting the lifting bucket 13.4 during flipping, so as to deal with the phenomenon that the lifting bucket 13.4 is separated from the guide rail 1.21 due to the change of torque when the lifting bucket 13.4 flips over.

[0066] This structure is simple and compact and can avoid the lifting bucket 13.4 from getting stuck in outdoor and harsh environments, resulting in reduced outdoor garbage lifting efficiency, and avoid the lifting bucket 13.4 from falling off the track when flipping, thereby reducing equipment maintenance and repair costs.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0068] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A lifting and turning device, characterized in that: include: A lifting truss, a guide rail assembly connected to the lifting truss, a lifting bucket device clamped on the guide rail assembly, and a first limiting device installed on the lifting bucket device; The lifting bucket device includes: a lifting assembly clamped on the guide rail assembly, a flip assembly clamped on the guide rail assembly, a support assembly connecting the lifting assembly and the flip assembly, and a lifting bucket mounted on the support assembly; The lifting assembly includes: a first pulley assembly mounted on the support assembly and engaged with the guide rail assembly, and a speed-constant device connected to the first pulley assembly; One end of the first limiting device is used for rolling contact with the lifting bucket, and the other end is close to the guide rail assembly. When the lifting bucket device is flipped, the first limiting device abuts against the guide rail assembly to provide a tightening fulcrum for the flipped lifting bucket, thereby achieving the purpose of flipping limit; The speed-consistent device is in sliding cooperation with the guide rail assembly to provide auxiliary sliding capability for the first pulley assembly.

2. The lifting and turning device according to claim 1, characterized in that: The speed-constant device is a bearing group built into the first pulley assembly; wherein the bearing group includes: a first bearing radially mounted inside the first pulley assembly, a second bearing arranged inside the first bearing and rotatably connected to the end of the pulley shaft; The outer side surface of the second bearing protrudes from the first bearing and the first pulley assembly and contacts the inner side of the guide rail assembly.

3. The lifting and turning device according to claim 2, characterized in that: The lifting bucket device also includes a driving component installed on the supporting assembly, and the power end of the driving component is connected to the lifting bucket through a linkage plate, thereby driving the lifting bucket to move away from the first limiting device.

4. The lifting and turning device according to claim 1, characterized in that: The guide rail assembly includes: two sets of guide rails symmetrically installed on the lifting truss and a first limiting block installed on one side of the guide rail and close to the first limiting device.

5. The lifting and turning device according to claim 1, characterized in that: The first limiting device includes: a tightening seat connected to the support assembly, a return spring installed in the tightening seat, a pressure head connecting rod inserted in the return spring and passing through the tightening seat, a tightening head connected to one end of the pressure head connecting rod, a rolling wheel connected to the other end of the pressure head connecting rod and in contact with the side of the lifting bucket, and a tightening plate installed on the pressure head connecting rod and located on one side of the rolling wheel; When the lifting bucket is away from the first limiting device, the rolling wheel slides along the side of the lifting bucket until it is no longer in contact with the lifting bucket. At this time, under the action of the return spring, the pressure head connecting rod drives the clamping head to move to the first limiting block and abut against it, and the tightening plate is away from the supporting assembly and tightened against the side of the lifting bucket. Finally, a triangular fixed relationship is formed among the tightening plate, the pressure head connecting rod, the clamping head and the side of the lifting bucket, thereby increasing the fulcrum for limiting the lifting bucket when flipping.

6. The lifting and turning device according to claim 5, characterized in that: The side of the first limiting block close to the first limiting device is a tapered surface; the side of the tightening plate facing the first limiting block is provided with a tapered groove.

7. The lifting and turning device according to claim 4, characterized in that: The lifting truss further comprises: a traction mechanism arranged on the lifting truss, two sets of flip slide rails respectively mounted on the top of the lifting truss and adapted to the two sets of guide rails, and a sensing device mounted on the top of the lifting truss; The two groups of flip slide rails are arc-shaped and are used to guide the lifting bucket device from longitudinal to transverse operation.

8. The lifting and turning device according to claim 1, characterized in that: The flip assembly includes: a flip sleeve installed on the top of the support assembly, two spring seats symmetrically installed in the middle of the support assembly, a second pulley assembly clamped on the guide rail assembly, a flip bracket connected to the second pulley assembly, two groups of flip springs connecting the flip bracket and the spring seat, a steel wire connecting block seat installed on the flip bracket, and a connecting shaft symmetrically connected to the top of the flip bracket and plugged into the flip sleeve.

9. The lifting and turning device according to claim 8, characterized in that: A second limiting block is further provided on the top of the support assembly. The second limiting block is located at the front end of the flip sleeve and is used to limit the rotation angle of the flip sleeve.

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