Multi-directional turnover device for assembly type component
By designing a multi-directional flip device for assembled components including a base plate, a flip frame and a driving mechanism, the problem that existing devices can only be flipped in one direction is solved, and multi-directional flip of components is realized, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202421490127.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing component flip device can only be flipped in one direction, which cannot meet the needs of multi-directional flip of large and heavy prefabricated components, resulting in low construction efficiency and many equipment.
A multi-directional flipping device for assembled components is designed, including a base plate, a flip rack and a drive mechanism. The bottom plate is composed of a base plate, a transverse support plate and a longitudinal support plate. The flip frame can be disassembled and connected to the bottom plate, and combined with the vertical transverse and longitudinal driving mechanisms to achieve multi-directional flip of the flip frame.
The device enables the flexibility to flip the assembled components to different postures, improving construction efficiency, reducing costs and management complexity, and enhancing the safety of the flip process.
Smart Images

Figure CN222680864U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of component turnover, in particular to a multi-directional turnover device for assembled components. Background Art
[0002] In the construction industry, since prefabricated components have different postures when temporarily stored on site, they need to be adjusted to a posture suitable for installation during installation. The efficient and safe flipping of prefabricated components is a key link in ensuring construction progress and quality.
[0003] In order to meet the needs of adjusting the posture of components, a component flipping device is usually set up in the storage site to cooperate with the crane to flip the posture. A vertical flipping device is used to cooperate with the construction of the assembled U-shaped groove. After the components are completed, they need to be placed in different postures during storage and transportation. Since the cantilever part of the "L"-shaped prefabricated component is large, it is easy to overturn when flipping. A horizontal flipping device is used to solve the flipping problem of the "L"-shaped side wall. Since these two flipping devices can only store or transport components of a single shape, as prefabricated components continue to develop towards large-scale and heavy-duty, the disadvantages of the above methods are becoming increasingly obvious.
[0004] The prior art proposes a flipping device, a flipping method and a prefabricated component production system, which is a transverse flipping device for components. This device can only be used for transverse flipping, not longitudinal flipping, which restricts work efficiency. For example, when flipping an L-shaped component, due to its shape, in order to ensure that it is convenient and reliable to clamp, the L-shaped component and the L-shaped flipping device are installed in the same direction, so it can usually only be flipped in a single direction (laterally). If you want to flip it in another direction (for example, longitudinally), you usually need to replace other flipping devices, which not only increases the construction time and reduces the construction efficiency, but also increases the number of flipping devices. Utility Model Content
[0005] In view of the deficiencies in the prior art, an object of the embodiments of the present utility model is to provide a multi-directional turning device for assembled components.
[0006] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:
[0007] A multi-directional flipping device for assembled components, comprising: a bottom plate, a flip frame and a driving mechanism; the bottom plate comprises a base plate, a transverse brace plate and a longitudinal brace plate, and the transverse brace plate and the longitudinal brace plate are respectively located on two side surfaces of the base plate; the side of the bottom of the flip frame biased towards the transverse brace plate is detachably rotatably connected to the bottom plate, and the side of the bottom of the flip frame biased towards the longitudinal brace plate is detachably rotatably connected to the bottom plate; the driving mechanism comprises a perpendicular transverse driving mechanism and a longitudinal driving mechanism, the transverse driving mechanism can flip the flip frame horizontally onto the transverse brace plate, and the longitudinal driving mechanism can flip the flip frame longitudinally onto the longitudinal brace plate.
[0008] Optionally, the base plate, the transverse support plate and the longitudinal support plate of the bottom plate form an L-shape in the horizontal plane, and the flip frame includes a transverse frame and a longitudinal frame, and the transverse frame and the longitudinal frame form an L-shape in the vertical plane.
[0009] Optionally, a transverse ear seat is provided on the side of the horizontal frame of the flip frame facing the transverse support plate, and a through hole is provided in the transverse ear seat. A first fixed seat is provided on the bottom plate, and a through hole coaxial with the through hole of the transverse ear seat is provided on the first fixed seat, and a rotating shaft passes through the through hole of the transverse ear seat and the through hole of the first fixed seat for rotational connection.
[0010] Optionally, a longitudinal ear seat is provided on the side of the horizontal frame of the flip frame facing the longitudinal support plate, and a through hole is provided in the longitudinal ear seat. A second fixed seat is provided on the bottom plate, and a through hole coaxial with the through hole of the longitudinal ear seat is provided on the second fixed seat. The through hole of the longitudinal ear seat and the through hole of the second fixed seat are rotatably connected by a rotating shaft passing through the through hole of the longitudinal ear seat.
[0011] Optionally, the transverse driving mechanism has a fixed end and a free end, the fixed end of the transverse driving mechanism is rotatably mounted on the bottom plate, and the free end is rotatably mounted on the side of the vertical frame of the turning frame.
[0012] Optionally, the longitudinal drive mechanism has a fixed end and a free end, the fixed end of the longitudinal drive mechanism is rotatably mounted on the bottom plate, and the free end is rotatably mounted on the side of the longitudinal frame of the flip frame.
[0013] Optionally, a slide groove is provided on the side of the longitudinal frame of the flip frame, a slider is slidably installed in the slide groove, a telescopic mechanism is provided on the longitudinal frame at the upper end of the slide groove, the telescopic mechanism is connected to the slider and can drive the slider to slide in the slide groove, and the free end of the transverse driving mechanism and the free end of the longitudinal driving mechanism are both rotatably installed on the slider.
[0014] Optionally, a shock-absorbing gasket is provided on the bottom plate, the flip frame is installed on the shock-absorbing gasket, and a supporting leg is provided under the bottom plate, and the bottom of the supporting leg is fixed to the ground by anchor bolts.
[0015] Optionally, a card plate is provided on the flip frame, the card plate is L-shaped, and the card plate is divided into a fixed plate and a movable plate, the fixed plate is located at one end of the horizontal frame biased towards the longitudinal support plate, and the movable plate is slidably installed on the end of the horizontal frame away from the fixed plate.
[0016] Optionally, a strap and a lifting rod are provided on the transverse plate of the flip frame, two ends of the strap are tied to the front and rear ends of the transverse plate, and the lifting rod is provided at the left end of the transverse plate.
[0017] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:
[0018] 1. In the flipping device, the bottom plate is set to the structural form of the base plate, the horizontal brace plate and the longitudinal brace plate. The flip frame thereon can be disassembled to realize the rotation connection in the horizontal and longitudinal directions. With the help of the perpendicular horizontal driving mechanism and the longitudinal driving mechanism, the flip frame can be flipped horizontally toward the horizontal brace plate, and the flip device can be flipped vertically toward the longitudinal brace plate. According to the needs, the multi-directional flipping of the flip frame can be realized by operating the horizontal or longitudinal driving mechanism, and the assembled components can be flipped to different postures conveniently. The operation is simple, the use is flexible and reliable, the work efficiency is improved, the cost is reduced, and the management is more convenient.
[0019] 2. Install a card plate on the flip frame to clamp the component from both sides, and install a strap on the side of the flip frame to tie the component with the strap to prevent the component from tipping over longitudinally. The combination of the lifting rod and the strap can support other postures or special-shaped components of the fixed component to form a fixing system, ensure that the flipped assembled component does not slip or rotate, improve the safety during the flipping process, and reduce the possibility of tipping over and instability of the component.
[0020] Additional advantages of the present invention will be given in the following description, and some will become apparent from the following description or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0022] Figure 1 This is a front view of a component provided by an embodiment of the utility model being hoisted to a turnover frame;
[0023] Figure 2 It is a top view of a component provided by an embodiment of the utility model being hoisted to a turning frame;
[0024] Figure 3 It is a schematic diagram of a card board provided in an embodiment of the utility model;
[0025] Figure 4 It is a schematic diagram of a binding strap provided by an embodiment of the utility model;
[0026] Figure 5 This is a schematic diagram of a component provided by an embodiment of the utility model before being horizontally flipped;
[0027] Figure 6 This is a schematic diagram of a component provided by an embodiment of the utility model after being flipped horizontally;
[0028] Figure 7 This is a schematic diagram of a component provided by an embodiment of the utility model before longitudinal flipping;
[0029] Figure 8 This is a schematic diagram of a component provided by an embodiment of the utility model after being longitudinally flipped;
[0030] In the figure: 1. shock-absorbing gasket; 2. outrigger; 3. bottom plate; 4. anchor bolt; 5. transverse drive mechanism; 6. slider; 7. slideway; 8. jack; 9. transverse ear seat; 10. flip frame; 11. rotating shaft; 12. extended pad; 13. strap; 14. lifting rod; 15. card plate; 16. longitudinal drive mechanism; 17. longitudinal ear seat; 18. lifting hole; 19. component;
[0031] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION
[0032] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0033] like Figure 1 , Figure 2 As shown, in this embodiment, a multi-directional flipping device for assembled components is proposed, including a bottom plate 3, a flip frame 10 and a driving mechanism.
[0034] The bottom plate 3 includes a base plate, a transverse support plate and a longitudinal support plate, wherein the transverse support plate and the longitudinal support plate are respectively located on two sides of the base plate; Figure 2 As shown, the base plate, transverse support plate and longitudinal support plate of the bottom plate 3 form an L shape in the horizontal plane, that is, an extended pad 12 is added from one side of the rectangular plate, and the flip frame 10 is located on the base plate before flipping. After flipping horizontally, the flip frame 10 falls toward the transverse support plate, and after flipping longitudinally, the flip frame 10 falls toward the longitudinal support plate.
[0035] The bottom of the overturning frame 10 is biased towards the side of the horizontal support plate (i.e. Figure 2 The right side of the middle) is detachably connected to the bottom plate 3, and the bottom of the flip frame 10 is biased towards the side of the longitudinal support plate (i.e. Figure 2 The upper middle side) is detachably and rotatably connected to the bottom plate 3.
[0036] The driving mechanism includes a transverse driving mechanism 5 and a longitudinal driving mechanism 16 which are perpendicular to each other. The transverse driving mechanism 5 can turn the turning frame 10 transversely onto the transverse support plate, and the longitudinal driving mechanism 16 can turn the turning frame 10 longitudinally onto the longitudinal support plate.
[0037] In the flipping device, the bottom plate 3 is set to a structural form of a base plate, a transverse brace plate and a longitudinal brace plate, and the flip frame 10 thereon can be disassembled to realize the rotation connection in the horizontal and longitudinal directions. With the help of the perpendicular transverse driving mechanism 5 and the longitudinal driving mechanism 16, the flipping frame 10 can be flipped horizontally toward the transverse brace plate, and the flipping device can also be flipped vertically toward the longitudinal brace plate. According to the needs, the multi-directional flipping of the flipping frame 10 can be realized by operating the transverse or longitudinal driving mechanism 16, and the assembled component 19 can be conveniently flipped to different postures (the assembled component can be flipped 90 degrees horizontally and vertically). The operation is simple, the use is flexible and reliable, the work efficiency is improved, the cost is reduced, and the management is more convenient.
[0038] The flip frame 10 includes a horizontal frame and a vertical frame, and the horizontal frame and the vertical frame form an L shape in the vertical plane. Figure 2 As shown, a transverse ear seat 9 is provided on the side of the transverse frame of the flip frame 10 facing the transverse brace plate, and a through hole is provided in the transverse ear seat 9. A first fixing seat is provided on the bottom plate 3, and a through hole coaxial with the through hole of the transverse ear seat 9 is provided on the first fixing seat, and a rotating shaft 11 passes through the through hole of the transverse ear seat 9 and the through hole of the first fixing seat for rotational connection. The rotational connection is realized by the cooperation of the rotating shaft 11, the ear seat and the fixing seat, and it is convenient to disassemble to meet the flipping requirements in different directions, simplifying the installation and disassembly of the device.
[0039] Similarly, a longitudinal ear seat 17 is provided on the side of the horizontal frame of the flip frame 10 facing the longitudinal support plate, and a through hole is provided in the longitudinal ear seat 17. A second fixing seat is provided on the bottom plate 3, and a through hole coaxial with the through hole of the longitudinal ear seat 17 is provided on the second fixing seat, and the rotating shaft 11 passes through the through hole of the longitudinal ear seat 17 and the through hole of the second fixing seat for rotational connection. It should be noted that when flipping longitudinally, the transverse driving mechanism 5 and the rotating shaft 11 in the transverse ear seat 9 are first removed, and the longitudinal driving mechanism 16 and the rotating shaft 11 used for the longitudinal flipping of the mounting member 19 are installed.
[0040] The transverse driving mechanism 5 has a fixed end and a free end. The fixed end of the transverse driving mechanism 5 is rotatably mounted on the bottom plate 3, and the free end is rotatably mounted on the side of the vertical frame of the turning frame 10. Figure 2 As shown, in this embodiment, the lateral driving mechanism 5 is a hydraulic cylinder, and two hydraulic cylinders are provided, respectively located on both sides of the turning frame 10. When the hydraulic cylinders are retracted, the turning frame 10 is pulled toward the cross brace. The hydraulic cylinders can be multi-stage hydraulic cylinders to reduce the total length of the retracted state so that the turning frame 10 can be turned in place.
[0041] The longitudinal drive mechanism 16 has a fixed end and a free end. The fixed end of the longitudinal drive mechanism 16 is rotatably mounted on the bottom plate 3, and the free end is rotatably mounted on the side of the longitudinal frame of the overturning frame 10. In order to enable the overturning frame 10 to be overturned in place, a slide groove 7 is provided on the side of the longitudinal frame of the overturning frame 10, and a slider 6 is slidably mounted in the slide groove 7. A telescopic mechanism (such as a jack 8 or a hydraulic cylinder, a cylinder, etc.) is provided on the longitudinal frame at the upper end of the slide groove 7. The telescopic mechanism is connected to the slider 6 and can drive the slider 6 to slide in the slide groove 7. The free end of the transverse drive mechanism 5 and the free end of the longitudinal drive mechanism 16 are both rotatably mounted on the slider 6.
[0042] The transverse driving mechanism 5 is connected to the slider 6 by an articulated manner, and the jack 8 is connected to the slider 6. When flipping horizontally, the jack 8 controls the slider 6 to remain stationary, so that the component 19 can flip horizontally. When flipping longitudinally, the transverse driving mechanism 5 is removed from the slider 6, and the longitudinal driving mechanism 16 is installed at the slider 6. The connection is formed by an articulated manner, so that the longitudinal driving mechanism 16 overturns the rotating frame 10 forward. When the longitudinal driving mechanism 16 is pushed to a specific length, the jack 8 controls the slider 6 to slide down by telescopic control, and at this time, the longitudinal driving mechanism 16 on the other side will use the remote sensor to control the flip frame 10 to fall downward. Since the longitudinal driving mechanism 16 is a rotating connection at the slider 6, the longitudinal driving mechanism 16 away from the rotating frame can slide to the bottom of the flip frame 10, just realizing the longitudinal flipping of the component 19, thereby safely realizing the multi-directional flipping of the component 19. Of course, it can be understood that the longitudinal driving mechanism 16 can also adopt the same installation structure as the transverse driving mechanism 5, but the longitudinal driving mechanism 16 on both sides adopts a one-pull-one-push method to make the flipping process more stable.
[0043] A shock-absorbing gasket 1 is provided on the base plate 3, and the flip frame 10 is installed on the shock-absorbing gasket 1. A support leg 2 is provided under the base plate 3, and the bottom of the support leg 2 is fixed to the ground by an anchor bolt 4 to maintain the stability of the flipping device during the flipping process and ensure the stability of the lifting equipment.
[0044] On the other hand, the existing flipping device usually has no fixed structure, which may cause the component 19 to become unstable and overturn during the flipping process, resulting in damage to the component 19 and possible safety accidents.
[0045] Based on this, in another embodiment, Figure 1 , Figure 3As shown, the flip frame 10 is provided with a card plate 15, which is L-shaped and is divided into a fixed plate and a movable plate. The fixed plate is located at one end of the horizontal frame that is biased towards the longitudinal support plate, and the movable plate is slidably installed on the end of the horizontal frame away from the fixed plate. The card plate 15 is made of steel. After the L-shaped component 19 is installed, the movable plate moves toward the fixed plate under the drive of the hydraulic cylinder, and cooperates with the fixed plate to clamp the component, thereby reducing the risk of the component 19 tipping over and falling during the flipping process.
[0046] In another embodiment, Figure 1 , Figure 4 As shown, a strap 13 and a lifting rod 14 are provided on the transverse plate of the flip frame 10, the two ends of the strap 13 are tied to the front and rear ends of the transverse plate, and the lifting rod 14 is provided at the left end of the transverse plate. The cooperation of the strap 13 and the card plate 15 enhances the fixing ability of the L-shaped component 19. The lifting rod 14 can be extended back to the surface of the flip frame 10, and can also be extended to a certain height to achieve the placement of the component 19 in multiple postures and ensure the stable placement of the component 19. The cooperation of the strap 13 and the lifting rod 14 can also be used to fix and clamp the special-shaped component 19. The flipping and fixing system of "card plate 15+ strap 13+ lifting rod 14" reduces the possibility of overturning and instability of the component 19, avoids lateral sliding and overturning of the component 19, and ensures the stability of the component 19 during the flipping process.
[0047] The following is an explanation of the usage process in combination with the structure:
[0048] Before the turning device turns over, the size of the lifting hole 18 is specially prefabricated according to the hook model of the crane, and the lifting hole 18 reserved in advance of the assembled component 19 is hooked by the sliding crane. The lifting hole 18 is connected to the crane, and the crossbeam can slide horizontally, and the hook can be extended and moved, and the various postures of the component 19 can be flexibly controlled to lift the component 19 onto the turning frame 10 (such as Figure 1 , Figure 2 shown).
[0049] Horizontal flipping process (such as Figure 5 , Figure 6 shown):
[0050] The component 19 can be placed on the flip frame 10 by using a crane. The flip frame 10 is connected to the bottom plate 3 through a transverse ear seat 9. The ear seat is installed at the edge of the flip frame 10. A hole for installing the rotating shaft 11 is left in the ear seat. The horizontal and vertical flipping can be replaced by removing the rotating shaft 11. The horizontal driving mechanism 5 is used to pull the flip frame 10 downward, and the flip frame 10 cooperates with the transverse ear seat 9 and the rotating shaft 11 to flip the flip frame 10 and the upper component 19 by 90°. Then, the crane is used to lift the component 19 away from the flip device to achieve multi-posture horizontal flipping of the component 19.
[0051] The longitudinal flip process (such as Figure 6 , Figure 7 shown):
[0052] To perform longitudinal flipping, the transverse driving mechanism 5 in the transverse flipping device must be removed from the slider 6, the rotating shaft 11 in the longitudinal ear seat 17 must be installed, and the longitudinal driving mechanism 16 must be installed on the slider 6 so that it can rotate longitudinally. The longitudinal driving mechanism 16 pushes the rotating frame 10 forward. When the transverse driving mechanism 5 is pushed to a certain length, it must cooperate with the slider 6 to slide down before it can continue to push. The jack 8 is used to push the slider 6 to make it slide. At this time, the longitudinal driving mechanism 16 on the other side will use the remote sensor to control the flip frame 10 to fall down. Since the longitudinal driving mechanism 16 is installed on the slider 6 in a hinged connection that can rotate 360°, the longitudinal driving mechanism 16 can slide to the bottom of the flip frame 10, just to achieve the longitudinal flipping of the component 19, and then use the crane to cooperate with the lifting to lift the component 19 away from the flipping device to achieve the multi-posture longitudinal flipping of the component 19.
[0053] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the protection scope of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the protection scope of the utility model.
Claims
1. A multi-directional turning device for assembled components, characterized in that: include: Bottom plate, turning frame and driving mechanism; The bottom plate includes a base plate, a transverse support plate and a longitudinal support plate, wherein the transverse support plate and the longitudinal support plate are respectively located on two sides of the base plate; The side of the bottom of the turning frame that is biased towards the horizontal support plate is detachably connected to the bottom plate, and the side of the bottom of the turning frame that is biased towards the vertical support plate is detachably connected to the bottom plate; The driving mechanism comprises a transverse driving mechanism and a longitudinal driving mechanism which are perpendicular to each other. The transverse driving mechanism can transversely turn the turning frame onto the transverse support plate, and the longitudinal driving mechanism can longitudinally turn the turning frame onto the longitudinal support plate.
2. The multi-directional turning device for assembled components according to claim 1, characterized in that: The base plate, the horizontal support plate and the vertical support plate of the bottom plate form an L shape in the horizontal plane, and the flip frame includes a horizontal frame and a vertical frame, and the horizontal frame and the vertical frame form an L shape in the vertical plane.
3. The multi-directional turning device for assembled components according to claim 2, characterized in that: A transverse ear seat is arranged on the side of the transverse frame of the flip frame facing the transverse support plate, a through hole is arranged in the transverse ear seat, a first fixed seat is arranged on the bottom plate, a through hole coaxial with the through hole of the transverse ear seat is arranged on the first fixed seat, and a rotating shaft passes through the through hole of the transverse ear seat and the through hole of the first fixed seat for rotational connection.
4. The multi-directional turning device for assembled components according to claim 2, characterized in that: A longitudinal ear seat is arranged on the side of the horizontal frame of the flip frame facing the longitudinal support plate, a through hole is arranged in the longitudinal ear seat, a second fixed seat is arranged on the bottom plate, a through hole coaxial with the through hole of the longitudinal ear seat is arranged on the second fixed seat, and a rotating shaft passes through the through hole of the longitudinal ear seat and the through hole of the second fixed seat for rotational connection.
5. The multi-directional turning device for assembled components according to claim 2, characterized in that: The transverse driving mechanism has a fixed end and a free end. The fixed end of the transverse driving mechanism is rotatably mounted on the bottom plate, and the free end is rotatably mounted on the side of the vertical frame of the turning frame.
6. The multi-directional turning device for assembled components according to claim 5, characterized in that: The longitudinal driving mechanism has a fixed end and a free end. The fixed end of the longitudinal driving mechanism is rotatably mounted on the bottom plate, and the free end is rotatably mounted on the side of the longitudinal frame of the overturning frame.
7. The multi-directional turning device for assembled components according to claim 6, characterized in that: A slide groove is arranged on the side of the vertical frame of the flip frame, a slider is slidably installed in the slide groove, a telescopic mechanism is arranged on the vertical frame at the upper end of the slide groove, the telescopic mechanism is connected to the slider and can drive the slider to slide in the slide groove, and the free end of the transverse driving mechanism and the free end of the longitudinal driving mechanism are both rotatably installed on the slider.
8. The multi-directional turning device for assembled components according to claim 1, characterized in that: The bottom plate is provided with a shock-absorbing gasket, the flip frame is installed on the shock-absorbing gasket, and legs are provided under the bottom plate, and the bottoms of the legs are fixed to the ground through anchor bolts.
9. The multi-directional turning device for assembled components according to claim 2, characterized in that: The flip frame is provided with a card plate, which is L-shaped and divided into a fixed plate and a movable plate. The fixed plate is located at one end of the horizontal frame biased towards the longitudinal support plate, and the movable plate is slidably installed on the end of the horizontal frame away from the fixed plate.
10. The multi-directional turning device for assembled components according to claim 2, characterized in that: A binding belt and a lifting rod are arranged on the transverse plate of the turnover frame, two ends of the binding belt are tied to the front and rear ends of the transverse plate, and the lifting rod is arranged at the left end of the transverse plate.