Mobile Folding Hoisting Beam Device

Abstract

The present invention provides a mobile folding hoisting beam device, which includes two guide rail frames, a main hook frame and a main hook. Wherein, an outer track groove is provided on each of the guide rail frames, the main hook frame is used to support the main hook, and the main hook frame can move in the two outer track grooves. The device realizes the hoisting operation of equipment by connecting wire ropes or chain hoists to the main hook and / or auxiliary hook, and can fold the bracket and the extension plate when not in use. The device can carry out hoisting operations on equipment in areas without hoisting facilities, with quick installation, convenient use and wide application range.

Description

Technical Field

[0001] The present invention relates to the field of equipment hoisting, and particularly to a mobile folding hoisting beam device. Background Art

[0002] During work production, hoisting equipment is widely used. However, in some working environments, due to limited conditions, hoisting equipment such as cranes and overhead traveling cranes cannot be used, which affects production. Therefore, it is necessary to design a mobile folding hoisting beam device that can be quickly installed and used. Summary of the Invention

[0003] The purpose of the present invention is to provide a mobile folding hoisting beam device, which can hoist equipment in areas without hoisting facilities, is quickly installed, easy to use, and has a wide range of applications.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A mobile folding hoisting beam device includes two guide rail frames, a main hook frame, and a main hook. Among them, each of the guide rail frames is provided with an outer track groove on it. The main hook frame is used to support the main hook, and the main hook frame can move within the two outer track grooves.

[0006] Further, in the above-mentioned mobile folding hoisting beam device, the device further includes a bracket. The outer track groove is formed by sequentially connecting and enclosing an outer side wall, a bottom plate, and an inner side wall. The two outer track grooves are arranged opposite to each other. An installation platform is provided on the outer side surface of the outer side wall, and an installation hole is provided on the installation platform. The installation hole is used to install the bracket. Preferably, one end of the bracket is provided with an installation shaft, and the installation shaft can enter the installation hole and connect the bracket to the outer side wall. The installation platform is a cube structure. A clamping plate is provided on one end of the bracket and on one side of the installation shaft. After the installation shaft enters the installation hole, the clamping plate can be clamped with the bottom surface of the installation platform. Preferably, four brackets are provided. Two installation platforms are provided on the outer side surface of each outer side wall, and one bracket is connected to each installation platform. A semi-circular convex platform is provided on one side surface of the installation platform close to the middle of the outer track groove. The bracket can rotate around the installation shaft along the side of the installation platform with the convex platform and then fold outside the outer side wall.

[0007] Further, in the above-mentioned mobile folding hoisting beam device, the device further includes walking wheels. The lower surface of the bottom plate is provided with trunnion seats for installing the walking wheels. Four walking wheels are provided, and two trunnion seats are provided on the lower surface of each bottom plate, and one walking wheel is installed on each trunnion seat. Preferably, the bracket can lift the device and enable the walking wheels to be disengaged from the ground.

[0008] Further, in the above-mentioned mobile folding hoisting beam device, the device further includes a push plate. The two ends of the push plate are respectively connected to one end of the two guide rail frames. Pushing the push plate can move the device.

[0009] Further, in the above-mentioned mobile folding hoisting beam device, the device further includes a secondary hook frame and a secondary hook. The upper and lower ends of the inner side walls of the two outer track grooves extend towards the direction between the two guide rail frames to form inner track grooves. The secondary hook frame is used to support the secondary hook, and the secondary hook frame can move in the two inner track grooves.

[0010] Further, in the above-mentioned mobile folding hoisting beam device, the device further includes two extension plates. The two extension plates are respectively connected to the other ends of the two guide rail frames. The working surfaces of the two extension plates are respectively connected to the two inner track grooves, enabling the secondary hook frame to move on the working surfaces of the extension plates. Baffles are provided on both sides of the working surfaces of the extension plates.

[0011] Further, in the above-mentioned mobile folding hoisting beam device, the device further includes two ear seats. One ear seat is respectively connected to the outer surfaces of the other ends of the two guide rail frames and located on the outer side walls. The two ear seats are used to install the extension plates.

[0012] Further, in the above-mentioned mobile folding hoisting beam device, the main hook frame includes a main board. A first through hole is provided in the middle of the main board. A first hanging bracket is provided at each end of the first through hole. The first hanging bracket extends above the main board. A main hole is provided on each first hanging bracket. Two main shafts are relatively connected to the upper section of the main hook. Each main shaft can enter one of the main holes. Four main legs are connected to the lower end of the main board. A first moving wheel is connected to the lower part of each main leg. The first moving wheel can roll in the outer track groove.

[0013] Further, in the above-mentioned mobile folding lifting beam device, the auxiliary hook frame includes an auxiliary plate. A second through hole is provided in the middle of the auxiliary plate. At both ends of the second through hole, a second hanging bracket is provided respectively. The second hanging bracket extends upward from the auxiliary plate. A secondary hole is provided on each second hanging bracket. Two secondary shafts are relatively connected to the upper section of the auxiliary hook. Each secondary shaft can enter one of the secondary holes. Two second moving wheels are respectively connected to the two side walls of the auxiliary plate. The second moving wheels can roll on the inner track groove and the working surface of the extension plate.

[0014] Further, in the above-mentioned mobile folding lifting beam device, the extension plate includes a first cross plate, a vertical plate, a second cross plate and a third cross plate. A connection hole is provided at one end of the first cross plate. The ear seat rotatably connects the first cross plate to the outer side wall through the connection hole, so that the extension plate is rotatably connected to the guide rail frame. The other end of the first cross plate extends outward along the length direction of the guide rail frame. The top end of the vertical plate is connected to the other end of the first cross plate. The bottom end of the vertical plate is connected to one end of the second cross plate. The other end of the second cross plate extends towards the direction between the two guide rail frames. One end of the third cross plate is connected to the other end of the second cross plate. The other end of the third cross plate extends outward along the length direction of the guide rail frame. The upper surface of the third cross plate is the working surface of the extension plate. The center line of the upper surface of the third cross plate is collinear with the center line of the bottom surface of the inner track groove. Rotating the extension plate can fold the extension plate above the guide rail frame.

[0015] Analysis shows that the present invention discloses a mobile folding lifting beam device, which includes two guide rail frames, a main hook frame, a main hook, an auxiliary hook frame, an auxiliary hook and an extension plate. Outer track grooves and inner track grooves are provided on both guide rail frames. The two outer track grooves are arranged oppositely, and the two inner track grooves are arranged oppositely. The main hook frame equipped with the main hook can move in the two outer track grooves, and the auxiliary hook frame equipped with the auxiliary hook can move on the working surfaces of the two inner track grooves and the extension plate. Lifting operations on equipment are realized by connecting steel wire ropes or chain hoists to the main hook and / or the auxiliary hook. The bracket and the extension plate can be folded during non-working hours. This device can perform lifting operations on equipment in areas without lifting facilities, with fast installation, convenient use, wide application range, reduced difficulty of lifting operations, greatly reduced work intensity, and improved safety of lifting operations. Description of the Drawings

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. Among them:

[0017] Figure 1 Schematic three-dimensional structure diagram of the working state of an embodiment of the present invention.

[0018] Figure 2 Schematic three-dimensional structure diagram of the non-working state of an embodiment of the present invention.

[0019] Figure 3 Schematic three-dimensional structure diagram of the guide rail frame of an embodiment of the present invention.

[0020] Figure 4 Schematic three-dimensional structure diagram of the assembly of the main hook frame and the main hook of an embodiment of the present invention.

[0021] Figure 5 Schematic three-dimensional structure diagram of the main hook frame of an embodiment of the present invention.

[0022] Figure 6 Schematic structure diagram of the main hook of an embodiment of the present invention.

[0023] Figure 7 Schematic three-dimensional structure diagram of the assembly of the auxiliary hook frame and the auxiliary hook of an embodiment of the present invention.

[0024] Figure 8 Schematic three-dimensional structure diagram of the auxiliary hook frame of an embodiment of the present invention.

[0025] Figure 9 Schematic structure diagram of the auxiliary hook of an embodiment of the present invention.

[0026] Figure 10 Schematic three-dimensional structure diagram of the extension plate of an embodiment of the present invention.

[0027] Explanation of reference numerals: 1 guide rail frame; 11 outer track groove; 111 outer side wall; 112 bottom plate; 113 inner side wall; 114 mounting table; 115 mounting hole; 12 push plate; 13 inner track groove; 14 trunnion seat; 15 ear seat; 16 bracket; 17 traveling wheel; 2 main hook frame; 21 main board; 22 first through hole; 23 first hanging rack; 24 main hole; 25 main leg; 26 first moving wheel; 3 main hook; 31 main shaft; 32 first hook hole; 4 auxiliary hook frame; 41 auxiliary board; 42 second through hole; 43 second hanging rack; 44 auxiliary hole; 45 second moving wheel; 5 auxiliary hook; 51 auxiliary shaft; 52 second hook hole; 6 extension plate; 61 first cross plate; 62 connecting hole; 63 vertical plate; 64 second cross plate; 65 third cross plate; 66 edge stop. Detailed Description of the Invention

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention rather than a limitation thereof. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present invention without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, it is intended that the present invention cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0029] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. The terms "connected", "connected to", and "disposed" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate member. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numerical and alphabetical labels to refer to features in the drawings. Similar or like labels in the drawings and the description have been used to refer to similar or like parts of the present invention. As used herein, terms such as "first", "second", and "third" can be used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0031] As Figures 1 to 10 shown, according to an embodiment of the present invention, a mobile folding lifting beam device is provided, which includes two guide rail frames 1, a main hook frame 2, and a main hook 3. Each guide rail frame 1 is provided with an outer track groove 11. The main hook frame 2 is used to support the main hook 3, and the main hook frame 2 can move within the two outer track grooves 11. When the device is in operation, a steel wire rope or a chain block is connected to the main hook 3, and the main hook frame 2 is moved to make the main hook 3 move to a suitable position, and the main hook 3 is used to perform a lifting operation on the equipment to be lifted.

[0032] Furthermore, the device further includes a bracket 16, as Figure 3As shown, the outer rail groove 11 is formed by connecting and enclosing an outer wall 111, a bottom plate 112 and an inner wall 113 in sequence. The opening of the outer rail groove 11 faces upward, and the two outer rail grooves 11 are arranged opposite to each other. The outer side surfaces of the outer walls 111 of the two outer rail grooves 11 are both provided with mounting platforms 114, and mounting holes 115 are provided on the mounting platforms 114. The mounting holes 115 are used to install the bracket 16; preferably, a mounting shaft is provided at one end of the bracket 16, and the mounting shaft can enter the mounting hole 115 and can connect the bracket 16 to the outer side surface of the outer wall 111. The mounting platform 114 is a cubic structure, and one end of the bracket 16 A clamping plate is provided on one side of the mounting shaft, and after the mounting shaft enters the mounting hole 115, the clamping plate can be clamped with the bottom surface of the mounting platform 114; preferably, the device includes four brackets 16, and two mounting platforms 114 are provided on the outer side of the outer wall 111 of each outer track groove 11, and each mounting platform 114 is connected to a bracket 16, and a semicircular boss is provided on one side of the mounting platform 114 close to the middle of the outer track groove 11, and the bracket 16 can rotate along the side of the mounting platform 114 with the boss with the mounting shaft as the axis, so that the bracket 16 can be folded outside the outer wall 111 of the outer track groove 11, such as Figure 2 As shown, when the device is in a non-working state, the bracket 16 rotates to the horizontal direction and folds outside the outer side wall 111, as shown in FIG. Figure 1 As shown, when the device is in working state, the bracket 16 rotates to a vertical position, and the bottom end of the bracket 16 contacts the ground, so that the bracket 16 can provide support for the device.

[0033] Furthermore, if Figure 1 and Figure 2 As shown, the device also includes a running wheel 17, and a trunnion seat 14 is provided on the lower surface of the base plate 112, and the trunnion seat 14 is used to install the running wheel 17; four running wheels 17 are provided, and two trunnion seats 14 are provided on the lower surface of each base plate 112, and a running wheel 17 is installed on each trunnion seat 14. Such an arrangement can facilitate the movement of the device. When in use, the running wheel 17 can be used to push the device to a specified position, which is convenient for lifting operations; preferably, the bracket 16 can prop up the device and can make the running wheel 17 leave the ground. Such an arrangement can prevent the running wheel 17 from being damaged by force during the lifting operation.

[0034] Furthermore, the device also includes a push plate 12, both ends of which are fixedly connected to one end of the two guide rail frames 1, respectively. The push plate 12 can be used to fix the positional relationship between the two guide rail frames 1, and the push plate 12 can be pushed to move the device. When in use, the push plate 12 is pushed and the device can be moved to a designated position for hoisting operations through the rotation of the walking wheel 17. A handle is provided on the push plate 12, and the push plate 12 can be easily pushed by holding the handle.

[0035] Further, the device further includes a secondary hook support 4 and a secondary hook 5. The upper and lower ends of the inner side walls 113 of the two outer track grooves 11 extend towards the direction between the two guide rail frames 1 to form inner track grooves 13. The openings of the inner track grooves 13 face the direction between the two guide rail frames 1. The secondary hook support 4 is used to support the secondary hook 5, and the secondary hook support 4 can move within the two inner track grooves 13. During operation, according to needs, a wire rope or a chain block is connected to the secondary hook 5, and the secondary hook support 4 is moved to make the secondary hook 5 move to a suitable position, and the secondary hook 5 is used to hoist the equipment to be hoisted.

[0036] Further, the device further includes two extension plates 6. The two extension plates 6 are respectively connected to the other ends of the two guide rail frames 1. The two extension plates 6 are arranged oppositely. The working surfaces of the two extension plates 6 are respectively connected to the two inner track grooves 13, so that the secondary hook support 4 can move on the working surfaces of the extension plates 6. The working surfaces of the two extension plates 6 are respectively extensions of the two inner track grooves 13. The length directions of the two extension plates 6 are the same as the length directions of the two inner track grooves 13. The secondary hook support 4 can move back and forth between the inner track grooves 13 and the extension plates 6. Such a setting can increase the moving distance of the secondary hook 5 during the hoisting operation; as Figure 10 shown, edge guards 66 are provided on both sides of the working surface of the extension plate 6. Such a setting can prevent the secondary hook 5 from falling during the movement on the extension plate 6.

[0037] Further, the device further includes two ear seats 15. One ear seat 15 is respectively connected to the outer surfaces of the other ends of the two guide rail frames 1 and located on the outer side walls 111. Each ear seat 15 is connected to the end of the outer side surface of the outer side wall 111. The two ear seats 15 are used to install the extension plates 6. The extension plates 6 can rotate around the ear seats 15 as axes. In the non-working state, the extension plates 6 can rotate and fold above the guide rail frames 1 to facilitate the movement of the device.

[0038] Further, as Figures 4 to 6As shown in the figure, the main hook frame 2 includes a main board 21. A first through hole 22 is provided in the middle of the main board 21. At both ends of the first through hole 22, there is a first hanging bracket 23 respectively. The first hanging bracket 23 extends upward from the main board 21. A main hole 24 is provided on each first hanging bracket 23. Two main shafts 31 are oppositely connected to the upper section of the main hook 3. Each main shaft 31 can enter a main hole 24. A first hook hole 32 is provided at the bottom end of the main hook 3. The first hook hole 32 is used to connect a wire rope or a chain hoist. The width of the first through hole 22 is greater than the thickness of the main hook 3, enabling the main hook 3 to swing at a certain angle with the two main shafts 31 as axes within the first hanging bracket 23, facilitating operations such as the installation and disassembly of lifting equipment and the equipment; four main legs 25 are connected to the lower end of the main board 21. A first moving wheel 26 is connected below each main leg 25. The first moving wheel 26 can roll within the outer track groove 11. The main hook frame 2 can move the main hook 3 along the length direction of the guide rail frame 1 through the rolling of the first moving wheel 26 within the outer track groove 11.

[0039] Further, as Figures 7 to 9 shown in the figure, the auxiliary hook frame 4 includes an auxiliary board 41. A second through hole 42 is provided in the middle of the auxiliary board 41. At both ends of the second through hole 42, there is a second hanging bracket 43 respectively. The second hanging bracket 43 extends upward from the auxiliary board 41. An auxiliary hole 44 is provided on each second hanging bracket 43. Two auxiliary shafts 51 are oppositely connected to the upper section of the auxiliary hook 5. Each auxiliary shaft 51 can enter an auxiliary hole 44. A second hook hole 52 is provided at the bottom end of the auxiliary hook 5. The second hook hole 52 is used to connect a wire rope or a chain hoist. The width of the second through hole 42 is greater than the thickness of the auxiliary hook 5, enabling the auxiliary hook 5 to swing at a certain angle with the two auxiliary shafts 51 as axes within the second hanging bracket 43, facilitating operations such as the installation and disassembly of lifting equipment and the equipment; two second moving wheels 45 are respectively connected to the two side walls of the auxiliary board 41. The second moving wheels 45 can roll within the inner track groove 13 and on the working surface of the extension plate 6. The auxiliary hook frame 4 can move the auxiliary hook 5 along the length direction of the guide rail frame 1 through the rolling of the second moving wheels 45 within the outer track groove 11 and on the working surface of the extension plate 6.

[0040] Further, as Figure 10As shown in the figure, the extension plate 6 includes a first cross plate 61, a vertical plate 63, a second cross plate 64, and a third cross plate 65. A connection hole 62 is provided at one end of the first cross plate 61. The ear seat 15 rotatably connects the first cross plate 61 to the outer side wall 111 through the connection hole 62, so that the extension plate 6 is rotatably connected to the guide rail frame 1. The other end of the first cross plate 61 extends outward along the length direction of the guide rail frame 1. The top end of the vertical plate 63 is connected to the other end of the first cross plate 61, and the bottom end of the vertical plate 63 is connected to one end of the second cross plate 64. The other end of the second cross plate 64 extends towards the direction between the two guide rail frames 1. One end of the third cross plate 65 is connected to the other end of the second cross plate 64, and the other end of the third cross plate 65 extends outward along the length direction of the guide rail frame 1. The upper surface of the third cross plate 65 is the working surface of the extension plate 6, and the center line of the upper surface of the third cross plate 65 is collinear with the center line of the groove bottom surface of the inner track groove 13. Rotating the extension plate 6 can fold the extension plate 6 above the guide rail frame 1. When the extension plate 6 is unfolded with the ear seat 15 as the axis, the side surface of the second cross plate 64 close to the guide rail frame 1 contacts and is clamped to the other end of the guide rail frame 1. When using the auxiliary hook 5 for hoisting operations, the support of the extension plate 6 is realized by the clamping of the second cross plate 64 and the guide rail frame 1 (bottom plate 112), and thus the auxiliary hook 5 moving on it can be supported.

[0041] This device is mainly used in areas with small tonnage and no hoisting facilities. When the device is working, it is manually pushed to the use position, the bracket 16 is propped up, and the traveling wheels 17 are lifted off the ground to prevent the traveling wheels 17 from being damaged by force. Then, a steel wire rope or a chain block is connected to the main hook 3 and / or the auxiliary hook 5, and the main hook 3 and / or the auxiliary hook 5 are moved to a suitable position, and then hoisting operations are carried out. During the inversion process, the main hook 3 and / or the auxiliary hook 5 are moved as needed, or the extension plate 6 is opened as needed for hoisting operations. Through the cooperation of the main hook 3 and the auxiliary hook 5, operations such as installation and disassembly between the two hoisting devices can be achieved.

[0042] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0043] A mobile folding hoisting beam device, comprising two guide rail frames 1, a main hook frame 2, a main hook 3, a secondary hook frame 4, a secondary hook 5 and an extension plate 6. Outer track grooves 11 and inner track grooves 13 are provided on both of the two guide rail frames 1. The two outer track grooves 11 are arranged oppositely, and the two inner track grooves 13 are arranged oppositely. The main hook frame 2 equipped with the main hook 3 can move within the two outer track grooves 11, and the secondary hook frame 4 equipped with the secondary hook 5 can move on the working surfaces of the two inner track grooves 13 and the extension plate 6. Hoisting operations for equipment are achieved by connecting wire ropes or chain hoists to the main hook 3 and / or the secondary hook 5. When not in use, the support 16 and the extension plate 6 can be folded, facilitating the movement of the device. This device can conduct hoisting operations on equipment in areas without hoisting facilities, with quick installation, convenient use, a wide range of applications, reduced difficulty of hoisting operations, greatly reduced work intensity, and improved safety of hoisting operations.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mobile folding hoisting beam device, characterized in that, It includes two guide rail frames, a main hook frame and a main hook. Among them, each of the guide rail frames is provided with an outer track groove on it. The main hook frame is used to support the main hook. The main hook frame can move within the two outer track grooves. The device further includes a bracket. The outer track groove is formed by sequentially connecting and enclosing an outer side wall, a bottom plate and an inner side wall. The two outer track grooves are arranged oppositely. An installation platform is provided on the outer side surface of the outer side wall. An installation hole is provided on the installation platform, and the installation hole is used to install the bracket. One end of the bracket is provided with an installation shaft. The installation shaft can enter the installation hole and can connect the bracket with the outer side wall. The installation platform is of a cube structure. A clamping plate is provided on one end of the bracket and on one side of the installation shaft. After the installation shaft enters the installation hole, the clamping plate can be clamped with the bottom surface of the installation platform. There are four brackets. Two installation platforms are provided on the outer side surface of each outer side wall. One bracket is connected to each installation platform. A semi-circular boss is provided on one side surface of the installation platform close to the middle of the outer track groove. The bracket can rotate around the installation shaft along the side of the installation platform with the boss and then fold outside the outer side wall. The device further includes a push plate. The two ends of the push plate are respectively connected to one end of the two guide rail frames. Pushing the push plate can move the device. The device further includes a secondary hook frame and a secondary hook. The upper and lower ends of the inner side walls of the two outer track grooves extend towards the direction between the two guide rail frames and form inner track grooves. The secondary hook frame is used to support the secondary hook. The secondary hook frame can move within the two inner track grooves. The device further includes two extension plates. The two extension plates are respectively connected to the other ends of the two guide rail frames. The working surfaces of the two extension plates are respectively connected to the two inner track grooves, so that the secondary hook frame can move on the working surfaces of the extension plates. Edges are provided on both sides of the working surface of the extension plate. The device further includes two ear seats. One ear seat is respectively connected to the other ends of the two guide rail frames and on the outer surface of the outer side wall. The two ear seats are used to install the extension plates. The extension plate includes a first cross plate, a vertical plate, a second cross plate and a third cross plate. A connection hole is provided at one end of the first cross plate. The ear seat rotatably connects the first cross plate with the outer side wall through the connection hole, and then rotatably connects the extension plate with the guide rail frame. The other end of the first cross plate extends outward along the length direction of the guide rail frame. The top end of the vertical plate is connected to the other end of the first cross plate. The bottom end of the vertical plate is connected to one end of the second cross plate. The other end of the second cross plate extends towards the direction between the two guide rail frames. One end of the third cross plate is connected to the other end of the second cross plate. The other end of the third cross plate extends outward along the length direction of the guide rail frame. The upper surface of the third cross plate is the working surface of the extension plate, and the center line of the upper surface of the third cross plate is collinear with the center line of the bottom surface of the inner track groove; Rotating the extension plate can fold the extension plate above the guide rail frame.

2. The mobile folding lifting beam device according to claim 1, characterized in that, The device further includes traveling wheels, and trunnion seats are arranged on the lower surface of the bottom plate, and the trunnion seats are used for installing the traveling wheels; Four traveling wheels are provided, two trunnion seats are arranged on the lower surface of each bottom plate, and one traveling wheel is installed on each trunnion seat; The bracket can support the device and can make the traveling wheels leave the ground.

3. The mobile folding lifting beam device according to claim 1, characterized in that, The main hook frame includes a main board, a first through hole is arranged in the middle of the main board, a first hanging bracket is arranged at each end of the first through hole, the first hanging bracket extends upward from the main board, a main hole is arranged on each first hanging bracket, two main shafts are relatively connected to the upper section of the main hook, and each main shaft can enter one of the main holes; Four main legs are connected to the lower end of the main board, and a first moving wheel is connected to the lower part of each main leg, and the first moving wheel can roll in the outer track groove.

4. The mobile folding lifting beam device according to claim 1, characterized in that, The auxiliary hook frame includes an auxiliary board, a second through hole is arranged in the middle of the auxiliary board, a second hanging bracket is arranged at each end of the second through hole, the second hanging bracket extends upward from the auxiliary board, a secondary hole is arranged on each second hanging bracket, two secondary shafts are relatively connected to the upper section of the auxiliary hook, and each secondary shaft can enter one of the secondary holes; Two second moving wheels are respectively connected to the two side walls of the auxiliary board, and the second moving wheels can roll in the inner track groove and on the working surface of the extension plate.

Images