A multifunctional and highly secure assembled building lifting fixture

Abstract

The present invention discloses a multifunctional and highly secure assembled building hoisting clamp, and relates to the technical field of hanging devices. The present invention fixes a first gear on a first swing arm, fixes a second gear on a second swing arm, and arranges a rack meshing with the right side of the first gear and a rack meshing with the left side of the second gear in a first rack frame, and arranges a rack meshing with the left side of the first gear and a rack meshing with the right side of the second gear in a second rack frame. By changing the force application position of the device when hoisting the device with a tower crane hook, the device can be flexibly controlled to be opened or closed for clamping during the lifting process, which can effectively improve the flexibility of the device during actual use, and effectively improve the lifting efficiency, and does not require staff to stay for a long time, which is beneficial to improving operation safety.

Description

Technical Field

[0001] The invention relates to the technical field of hanging devices, and in particular to a multifunctional high-safety assembled building hoisting fixture. Background Art

[0002] With the changes in construction technology, prefabricated construction technology is widely used in existing house construction. Prefabricated construction technology transfers a large number of on-site operations in traditional construction methods to the factory, completes the processing of walls, floor slabs and other components in the central factory, and then transports the formed components to the construction site. They are assembled and installed on site through reliable connection methods to form a house building. It has the advantages of high construction efficiency, reduced construction costs, energy saving and environmental protection.

[0003] During the implementation of the prefabricated construction process, it is necessary to use a lifting clamp to clamp and lift the wall components. Since the lifting clamp is at the end of the wire rope on the tower crane during use, it is inconvenient to power the lifting clamp. Therefore, the opening and closing of the lifting clamp is difficult to control using an electric drive unit. Usually, the staff manually moves the control structure to open the lifting clamp. Manually controlling the opening of the lifting clamp will not only greatly increase the labor intensity of the staff, but also cause the staff to stay near the lifting clamp for a long time due to the inconvenience of operation, which can easily affect the lifting efficiency of the wall panels and greatly increase the probability of injury to the staff during operation.

[0004] To this end, a multifunctional and highly secure assembled building lifting fixture is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that the lifting clamp for lifting prefabricated walls needs to be manually opened and controlled by the staff during actual use, which leads to high labor intensity and cumbersome operation for the staff, easily affecting the lifting efficiency and increasing the probability of injury to the staff, and to propose a multifunctional and high-safety prefabricated building lifting clamp.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] The cam is an angularly-spaced vertical rack that is fixed to the upper and lower edges of the frame, the cam being arranged on a circle with the first and second gears being arranged on the lower edges of the frame.

[0008] Preferably, the first swing arm and the second swing arm are both configured as L-shaped structures with the lower ends bent downward.

[0009] Preferably, there are two first swing arms, both of which are arranged on the left side of the frame, and the lower ends of the two first swing arms are installed with vertically arranged clamping frames, and the two first swing arms are respectively arranged on the front and rear sides of the second swing arm.

[0010] Preferably, a longitudinally arranged first rotating shaft is rotatably installed at the lower end of the first swing arm, and the first rotating shaft is fixedly connected to the clamping frame located on the left side, the clamping frame located on the left side is rotatably connected to the lower end of the first swing arm through the first rotating shaft, and a longitudinally arranged third rotating shaft is rotatably installed at the lower end of the second swing arm, and the third rotating shaft is fixedly connected to the clamping frame located on the right side, and the clamping frame located on the right side is rotatably connected to the lower end of the second swing arm through the third rotating shaft.

[0011] Preferably, the bending positions of the two first swing arms are rotatably installed with a longitudinally arranged second rotating shaft, and a first sprocket transmission mechanism is transmission-connected between the second rotating shaft and the fixed shaft, a second sprocket transmission mechanism is transmission-connected between the first rotating shaft and the second rotating shaft, and a longitudinally arranged fourth rotating shaft is rotatably installed at the bending position of the second swing arm, and a third sprocket transmission mechanism is transmission-connected between the fourth rotating shaft and the fixed shaft, and a fourth sprocket transmission mechanism is transmission-connected between the third rotating shaft and the fourth rotating shaft.

[0012] Preferably, an auxiliary clamping mechanism is installed in the clamping frame, and the auxiliary clamping mechanism includes a slide groove which is symmetrically opened on the clamping frame from top to bottom, and the slide groove is vertically opened on the end wall of the clamping frame, a longitudinally arranged shaft rod is slidably inserted in the slide groove, and a hinged arm extending toward the frame direction is fixedly installed on the shaft rod, a bearing block is hinged between the ends of the upper and lower hinged arms, a tension spring is hooked and connected between the upper and lower shaft rods, and a clamping wheel is installed in the bearing block.

[0013] Preferably, a third gear is coaxially mounted at the hinge of the articulated arm and the bearing block, and the third gear is fixedly connected to the articulated arm, and the upper and lower third gears are meshed with each other.

[0014] Preferably, a plurality of auxiliary clamping mechanisms are provided, and the plurality of auxiliary clamping mechanisms are evenly distributed on the clamping frame from top to bottom.

[0015] Preferably, the clamping wheel is rotatably mounted in the bearing block, a ratchet coaxially arranged therewith is fixedly mounted on the circular end face of the clamping wheel, a card block adapted to the ratchet is slidably inserted in the bearing block, and a spring for elastically supporting the card block is installed in the bearing block.

[0016] Preferably, the cylindrical surface of the clamping wheel is provided with anti-skid grooves that are staggered in both horizontal and vertical directions, and the first swing arm, the second swing arm, the clamping frame and the articulated arm are all configured as a frame-type structure with a hollow inner side.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, the first gear is fixedly mounted on the first swing arm, the second gear is fixedly mounted on the second swing arm, and the rack meshing with the right side of the first gear and the rack meshing with the left side of the second gear are arranged in the first rack frame, and the rack meshing with the left side of the first gear and the rack meshing with the right side of the second gear are arranged in the second rack frame. By changing the force application position of the tower crane hook hoisting the device, the device can be flexibly controlled to open or close the clamping during the lifting process, which can effectively improve the flexibility of the device in actual use, without the need for the staff to manually adjust the first swing arm and the second swing arm, and without the need to use a driving unit for control, so that the staff can use the device to clamp and hoist the wall more conveniently and efficiently, and there is no need for the staff to stay for a long time, which is conducive to improving the safety of the operation;

[0019] 2. In the present invention, by setting the lower ends of the first swing arm and the second swing arm as a downwardly bent L-shaped structure, the clamping frame connected to the lower ends thereof can more conveniently approach the bottom middle position of the frame body during the rotation of the first swing arm and the second swing arm, thereby ensuring to a certain extent the stability of the clamping frames on the left and right sides when they are driven to approach each other and clamp the wall during the rotation of the first swing arm and the second swing arm;

[0020] 3. In the present invention, by providing two first swing arms on the left side, and respectively providing the two first swing arms on the front and rear sides of the right frame, the device can form a three-point clamping structure with two clamping frames on the left side and one clamping frame on the right side when clamping the wall. The three clamping frames are staggered front and back, which can effectively improve the stability of the device when hoisting and clamping the wall;

[0021] 4. In the present invention, the left clamping frame is rotatably connected to the lower end of the first swing arm through the first rotating shaft, the right clamping frame is rotatably connected to the lower end of the second swing arm through the third rotating shaft, and the first sprocket transmission mechanism and the second sprocket transmission mechanism are transmission-connected between the fixed shaft, the second rotating shaft and the first rotating shaft, and the third sprocket transmission mechanism and the fourth sprocket transmission mechanism are transmission-connected between the fixed shaft, the fourth rotating shaft and the third rotating shaft, so that during the rotation adjustment process of the first swing arm and the second swing arm, the clamping frame always remains in a vertical state to clamp and lock the wall, which can effectively increase the contact area of ​​the clamping frame with the left and right end walls of the wall during the clamping process, and can effectively ensure the stability of the left and right clamping frames when clamping and hoisting the wall;

[0022] 5. In the present invention, multiple auxiliary clamping mechanisms are evenly distributed from top to bottom in the clamping frames on the left and right sides, and by means of the hinge connection of the upper and lower hinged arms and the elastic pulling of the tension spring, the auxiliary clamping mechanism protruding outward can be adaptively adjusted according to the undulating structure of the outer end wall of the wall, which is conducive to improving the stability of the device when clamping and hoisting walls of various structures;

[0023] 6. In the present invention, the clamping wheel is rotatably installed in the bearing block, and the spring elastically supports the clamping block so that the clamping block is engaged in the ratchet, thereby limiting the rotation direction of the clamping wheel, so that the clamping wheel can only rotate in one direction in the bearing block, the clamping wheel in the auxiliary clamping mechanism in the left clamping frame can only rotate counterclockwise, and the clamping wheel in the auxiliary clamping mechanism in the right clamping frame can only rotate clockwise. When the device clamps the wall, the device can be moved downward along the wall by slowly lowering the device, greatly improving the range of the left and right clamping frames clamped on the outer end wall of the wall, which is beneficial to improve the firmness and stability of the device when clamping and hoisting the wall to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a three-dimensional diagram of the present invention in an open state;

[0026] Figure 2 This is a split diagram of the structure inside the frame of the present invention from the left side perspective;

[0027] Figure 3 This is a disassembled diagram of the structure inside the frame of the present invention from the right side viewing angle;

[0028] Figure 4 It is a three-dimensional diagram of the structure inside the clamping frame of the present invention;

[0029] Figure 5 is a three-dimensional diagram of the auxiliary clamping mechanism of the present invention;

[0030] Figure 6 This is a disassembled diagram of the bearing block and the clamping wheel of the present invention;

[0031] Figure 7 For the present invention Figure 1 Front view of the middle structure;

[0032] Figure 8 For the present invention Figure 1 Front view of the structure in section;

[0033] Fig. 9 For the present invention Figure 7 Sectional view at AA in the middle;

[0034] Fig.10 For the present invention Figure 7 Cross-section at the middle BB;

[0035] Fig.11 For the present invention Figure 7 Sectional view at CC;

[0036] Fig.12 This is a three-dimensional diagram of the present invention when clamping a wall;

[0037] Fig.13 For the present invention Fig.12 Front view of the middle structure;

[0038] Fig.14 For the present invention Fig.12 Bottom view of the structure.

[0039] Serial number in the picture:

[0040] 1. Frame; 101. Fixed axis; 102. First rack; 103. First hanging hole; 104. Second rack; 105. Second hanging hole;

[0041] 2. first swing arm; 201. first gear;

[0042] 3. second swing arm; 301. second gear;

[0043] 4. Clamping frame;

[0044] 5. First rotating shaft; 501. Second rotating shaft; 502. First sprocket transmission mechanism; 503. Second sprocket transmission mechanism;

[0045] 6. third rotating shaft; 601. fourth rotating shaft; 602. third sprocket transmission mechanism; 603. fourth sprocket transmission mechanism;

[0046] 7. Auxiliary clamping mechanism; 701. Slide groove; 702. Shaft; 703. Articulated arm; 704. Carrying block; 705. Tension spring; 706. Third gear;

[0047] 8. Clamping wheel; 801. Ratchet; 802. Block; 803. Spring. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] Embodiment: This embodiment provides a multifunctional and highly secure assembled building hoisting fixture. Figure 1 - Fig.14 Specifically, it includes a frame 1, a longitudinally arranged fixed shaft 101 is rotatably installed at the center position of the frame 1, a first rack rack 102 that slides up and down is installed on the left side of the interior of the frame 1, and a vertically arranged first hanging hole 103 is fixedly installed on the top of the first rack rack 102, a second rack rack 104 that slides up and down is installed on the right side of the interior of the frame 1, and a vertically arranged second hanging hole 105 is fixedly installed on the top of the second rack rack 104, a first swing arm 2 that protrudes to the lower left of the frame 1 is rotatably connected to the fixed shaft 101, and a movable sleeve 106 that is arranged on the fixed shaft 101 is fixedly installed on the first swing arm 2 The first gear 201 on the outside is rotatably connected to the fixed shaft 101 with a second swing arm 3 extending to the lower right side of the frame 1, and the second swing arm 3 is fixedly installed with a second gear 301 movably sleeved on the outside of the fixed shaft 101, the first rack frame 102 is vertically provided with a rack meshing on the right side of the first gear 201, and a rack meshing on the left side of the second gear 301, the second rack frame 104 is vertically provided with a rack meshing on the left side of the first gear 201, and a rack meshing on the right side of the second gear 301, and the lower ends of the first swing arm 2 and the second swing arm 3 are both installed with a vertically arranged clamping frame 4.

[0050] During the use of the device, the staff installs the device on the hook of the tower crane on the construction site. When the device needs to be opened, the staff connects the hook on the tower crane with the second hanging hole 105. Under the action of the tower crane, the device is hung in a suspended state. Since the second hanging hole 105 is connected to the hook located above, the second rack frame 104 fixedly connected to the second hanging hole 105 moves relatively from bottom to top in the frame 1. Since a rack meshing with the left side of the first gear 201 is vertically arranged in the second rack frame 104, and a rack meshing with the right side of the second gear 301 is vertically arranged in the second rack frame 104, with the meshing of the rack teeth, the first gear 201 drives the first swing arm 2 to rotate outward clockwise, and the second gear 301 drives the second swing arm 3 to rotate outward counterclockwise. The lower ends of the first swing arm 2 and the second swing arm 3 move away from each other synchronously, presenting an open state, which is convenient for the device to clamp the wall later.

[0051] In the device, since the rack set in the first rack rack 102 is respectively meshed with the right side of the first gear 201 and the left side of the second gear 301, and the rack set in the second rack rack 104 is respectively meshed with the left side of the first gear 201 and the right side of the second gear 301, this makes the rack set on the first rack rack 102 in the frame 1 and the rack set on the second rack rack 104 present a central axis symmetrical structure. When the second rack rack 104 moves relatively upward in the frame 1, the first rack rack 102 moves relatively downward in the frame 1 with the help of the meshing of the teeth of the rack. When the first rack rack 102 moves relatively upward in the frame 1, the second rack rack 104 moves relatively downward in the frame 1 with the help of the meshing of the teeth of the rack.

[0052] When the device is needed to clamp the wall, the staff hoists the device to the top of the vertical wall through the tower crane. Under the control of the staff, the device is gradually lowered above the wall, and finally the bottom of the frame 1 is stably parked on the top of the wall. Then the staff changes the connection position of the tower crane hook, releases the connection of the hook originally hooked on the second hanging hole 105, and then hooks it on the first hanging hole 103 again. Then the staff controls the wire rope of the tower crane to drive the hook to gradually rise. Under the connection of the hook, in the initial state, the first hanging hole 103 first drives the first rack frame 102 to rise upward in the frame 1. Under the meshing of the gear rack, the first rack frame 102 rises upward in the frame 1, and the second rack frame 104 falls downward in the frame 1, so that the first gear 201 drives the first swing arm 2 to rotate counterclockwise, and the second gear 301 drives the second swing arm 3 to rotate clockwise. The lower ends of the first swing arm 2 and the second swing arm 3 are synchronously close to each other, driving the clamping frames 4 on the left and right sides to synchronously move to the left and right sides of the wall When the first rack 102 is moved upward to a position where it cannot move within the frame 1, the tower crane continues to pull the device upward to lift the wall clamped between the left and right clamping frames 4. During the lifting process, under the influence of the gravity of the device and the wall, the first rack 102 continues to maintain a tendency to move upward relative to the frame 1. Under this tendency, the lower ends of the first swing arm 2 and the second swing arm 3 continue to approach each other, thereby maintaining a tendency for the clamping frames 4 on the left and right sides to be clamped on the outside of the wall. This can effectively ensure the stability of the device when clamping the wall. When the device is used to clamp and lift the wall, there is no need to actively adjust the device. It is only necessary to change the position of the hook connected to the first hanging hole 103 and the second hanging hole 105, and cooperate with the lifting and lowering of the device to realize the opening and closing clamping operations of the device, which can effectively improve the flexibility of the device in actual use.

[0053] When the device is in use, two upper and lower hooks are provided on the wire rope of the tower crane, and the upper and lower hooks are 50 cm apart. The upper hook is used as a force connection with the device, and the lower hook is used to ensure the safe connection of the device. The wire rope connected between the upper and lower hooks is always in a relaxed state. When the first swing arm 2 and the second swing arm 3 in the device need to be rotated outward and opened, the staff connects the upper hook with the second hanging hole 105, and connects the lower hook with the first hanging hole 103. When the device needs to clamp the wall, the staff connects the upper hook with the first hanging hole 103, and connects the lower hook with the second hanging hole 105. When the two hooks change their connection positions, one of the hooks is always kept connected to the first hanging hole 103 or the second hanging hole 105, which can prevent the device from falling when the hooks change positions, effectively improving the safety of the device during actual use.

[0054] In the specific implementation process, Figure 7 and Fig.13 As shown, the first swing arm 2 and the second swing arm 3 are both configured as an L-shaped structure with the lower end bent downward. During the use of the device, since the lower ends of the first swing arm 2 and the second swing arm 3 are configured as an L-shaped structure bent downward, it is more convenient for the clamping frame 4 connected to the lower ends of the first swing arm 2 and the second swing arm 3 to move closer to the middle position of the bottom of the frame body 1 during the rotation of the first swing arm 2 and the second swing arm 3, which is beneficial to ensuring the stability of the left and right clamping frames 4 to move closer to each other and clamp the wall during the rotation of the first swing arm 2 and the second swing arm 3.

[0055] In the specific implementation process, Fig.14 As shown, there are two first swing arms 2, both of which are arranged on the left side of the frame 1, and the lower ends of the two first swing arms 2 are installed with vertically arranged clamping frames 4, and the two first swing arms 2 are respectively arranged on the front and rear sides of the second swing arm 3. During the use of the device, since there are two first swing arms 2 on the left side, and the two first swing arms 2 are respectively arranged on the front and rear sides of the right side frame 1, the device can form a clamping structure with two clamping frames 4 on the left side and one clamping frame 4 on the right side when clamping the wall. With the mutual cooperation of the two first swing arms 2 and one second swing arm 3, the three clamping frames 4 can perform a three-point clamping operation on the wall, which is beneficial to improve the stability of the device when hoisting and clamping the wall.

[0056] In the specific implementation process, Figure 1 - Figure 3As shown, a longitudinally arranged first rotating shaft 5 is rotatably mounted on the lower end of the first swing arm 2, and the first rotating shaft 5 is fixedly connected to the clamping frame 4 on the left side, and the clamping frame 4 on the left side is rotatably connected to the lower end of the first swing arm 2 through the first rotating shaft 5, and a longitudinally arranged third rotating shaft 6 is rotatably mounted on the lower end of the second swing arm 3, and the third rotating shaft 6 is fixedly connected to the clamping frame 4 on the right side, and the clamping frame 4 on the right side is rotatably connected to the lower end of the second swing arm 3 through the third rotating shaft 6, and the bending positions of the two first swing arms 2 are rotatably mounted together. A second rotating shaft 501 is arranged longitudinally, and a first sprocket transmission mechanism 502 is transmission-connected between the second rotating shaft 501 and the fixed shaft 101, a second sprocket transmission mechanism 503 is transmission-connected between the first rotating shaft 5 and the second rotating shaft 501, a fourth rotating shaft 601 is rotationally installed at the bending position of the second swing arm 3, and a third sprocket transmission mechanism 602 is transmission-connected between the fourth rotating shaft 601 and the fixed shaft 101, and a fourth sprocket transmission mechanism 603 is transmission-connected between the third rotating shaft 6 and the fourth rotating shaft 601.

[0057] During the use of the device, since the fixed shaft 101 is longitudinally fixed in the frame 1, and the first sprocket transmission mechanism 502 is transmission-connected between the second rotating shaft 501 and the fixed shaft 101, during the process of the first gear 201 driving the first swing arm 2 to rotate, under the transmission connection of the first sprocket transmission mechanism 502, the second rotating shaft 501 will be driven to rotate in the opposite direction to the rotation direction of the first swing arm 2 by a corresponding angle, and then with the help of the transmission connection of the second sprocket transmission mechanism 503, the first rotating shaft 5 is driven to rotate synchronously with the second rotating shaft 501 relative to the first swing arm 2 in the same direction. Similarly, since the third sprocket transmission mechanism 602 is transmission-connected between the fourth rotating shaft 601 and the fixed shaft 101, during the process of the second gear 301 driving the second swing arm 3 to rotate, under the transmission connection of the third sprocket transmission mechanism 602, the fourth rotating shaft 601 will be driven to rotate in the opposite direction to the rotation direction of the second swing arm 3 by a corresponding angle, and then with the help of the fourth sprocket transmission mechanism The transmission connection of the mechanism 603 drives the third rotating shaft 6 to rotate synchronously in the same direction with the second swing arm 3 and the fourth rotating shaft 601. Under the above connection, when the device is gradually opened, the first gear 201 drives the first swing arm 2 to rotate clockwise, and the second gear 301 drives the second swing arm 3 to rotate counterclockwise, so that the first rotating shaft 5 drives the clamping frame 4 on the left to rotate synchronously counterclockwise by a corresponding angle, and the third rotating shaft 6 drives the clamping frame 4 on the right to rotate synchronously clockwise by a corresponding angle, so that the clamping frames 4 on the left and right sides always remain in a vertical state. The clamping frame 4 is vertically arranged from top to bottom, and under the transmission connection of the first sprocket transmission mechanism 502, the second sprocket transmission mechanism 503, the third sprocket transmission mechanism 602 and the fourth sprocket transmission mechanism 603, the wall is always clamped and locked in a vertical state, which can effectively increase the contact area of ​​the clamping frame 4 with the left and right end walls of the wall during the clamping process, and can effectively ensure its stability when clamping and hoisting the wall.

[0058] In the specific implementation process, Figure 4 , Figure 5 and Figure 8 As shown, an auxiliary clamping mechanism 7 is installed in the clamping frame 4, and the auxiliary clamping mechanism 7 includes a slide groove 701 symmetrically opened on the clamping frame 4, and the slide groove 701 is vertically opened on the end wall of the clamping frame 4, a longitudinally arranged shaft rod 702 is slidably inserted in the slide groove 701, and a hinged arm 703 extending toward the frame 1 is fixedly installed on the shaft rod 702, a bearing block 704 is hinged between the ends of the upper and lower hinged arms 703, a tension spring 705 is hooked and connected between the upper and lower shaft rods 702, a clamping wheel 8 is installed in the bearing block 704, a third gear 706 is coaxially installed at the hinge of the hinge arm 703 and the bearing block 704, and the third gear 706 is fixedly connected to the hinge arm 703, and the upper and lower third gears 706 are meshed with each other, and a plurality of auxiliary clamping mechanisms 7 are provided, and the plurality of auxiliary clamping mechanisms 7 are evenly distributed on the clamping frame 4 from top to bottom.

[0059] During the use of the device, multiple auxiliary clamping mechanisms 7 are evenly distributed from top to bottom in the clamping frame 4. When the left and right clamping frames 4 clamp the wall, the auxiliary clamping mechanism 7 on the side of the clamping frame 4 close to the bottom center of the frame 1 will preferentially contact the side end wall of the wall. As the left and right clamping frames 4 gradually approach each other, the auxiliary clamping mechanisms 7 installed on the clamping frames 4 will be gradually compressed. Since the left and right clamping frames 4 are installed with multiple auxiliary clamping mechanisms 7 evenly distributed from top to bottom and protruding toward the bottom center of the frame 1, the device can not only stably clamp the wall with a flat outer end wall, but also clamp the wall with an uneven structure on the outer end wall, which can effectively improve the versatility of the device in actual use.

[0060] When the device is used to clamp and hoist the wall, the auxiliary clamping mechanism 7 is gradually squeezed. Under the squeezing effect and the connection of the articulated arm 703, the upper and lower shaft rods 702 overcome the elastic pull of the tension spring 705 and slide in the slide groove 701. In this process, the contact tightness between the clamping wheel 8 and the side end wall of the wall can be further guaranteed when the wall is clamped. When the device is used to clamp and hoist a wall with a different side end wall structure, each auxiliary clamping mechanism 7 can be adaptively adjusted at the corresponding position, which is beneficial to further improve the clamping stability of the device during actual use.

[0061] When the auxiliary clamping mechanism 7 is squeezed and changes its structural state, since the third gear 706 is fixedly installed on the articulated arm 703, and the third gear 706 is coaxially arranged at the hinge of the articulated arm 703 and the tension spring 705, accompanied by the mutual engagement of the upper and lower third gears 706, the upper and lower symmetrically arranged articulated arms 703 can move synchronously relative to each other during the swinging process, so that the supporting block 704 is always in a stable upright state, which is beneficial to ensuring the stability of the clamping wheels 8 in the left and right supporting blocks 704 clamped on the outer end wall of the wall.

[0062] In the specific implementation process, Figure 6 , Fig.10 and Fig.12As shown, the clamping wheel 8 is rotatably installed in the bearing block 704, and a ratchet 801 coaxially arranged therewith is fixedly installed on the circular end face of the clamping wheel 8, a clamping block 802 adapted to the ratchet 801 is slidably inserted in the bearing block 704, and a spring 803 for elastically supporting the clamping block 802 is installed in the bearing block 704. During the use of the device, under the elastic support of the spring 803, the clamping block 802 slidably installed in the bearing block 704 will be engaged in the helical teeth on the outer side of the ratchet 801, and by setting the inclination direction of the helical teeth on the outer side of the ratchet 801, the clamping wheel 8 can be The carrier block 704 rotates unidirectionally, and the clamping wheel 8 in the auxiliary clamping mechanism 7 in the left clamping frame 4 can only rotate counterclockwise, and cannot rotate clockwise. The clamping wheel 8 in the auxiliary clamping mechanism 7 in the right clamping frame 4 can only rotate clockwise, and cannot rotate counterclockwise. The above-mentioned structural arrangement allows the device to be clamped on both sides of the wall. During the process of the device falling from top to bottom, the clamping wheels 8 on the left and right sides can roll downward along the side end walls of the wall, so that the device slides downward relative to the wall. The clamping wheels 8 on the left and right sides are restricted by the unidirectional rotation, so that during the process of the device being raised, The device cannot slide upward relative to the wall, which ensures the stability of the device when clamping the wall. When the device clamps the wall, the first hanging hole 103 is connected to the hook of the tower crane. As the hook rises, the first hanging hole 103 is pulled to pull the first rack 102 up. When the first rack 102 moves up to the limit position in the frame 1, it will drive the frame 1 to move up synchronously, which will cause a certain amount of vacant space between the bottom of the frame 1 and the top of the wall due to the upward movement of the frame 1. The existence of this area reduces the range of the left and right clamping frames 4 on the outer end wall of the wall. In order to increase the range of the left and right clamping frames 4 clamped on the outer end wall of the wall, the device can be lifted upward by connecting the first hanging hole 103 with a hook, so that the first rack 102 moves up to the limit position in the frame 1, and then the device is slowly lowered. Due to the unidirectional rolling of the clamping wheel 8, the device can move downward along the wall during the lowering process, and finally the bottom of the frame 1 is gradually approached to the top of the wall, which greatly increases the range of the left and right clamping frames 4 clamped on the outer end wall of the wall, and to a certain extent improves the firmness and stability of the device when clamping and hoisting the wall.

[0063] In the specific implementation process, Figure 1As shown, the cylindrical surface of the clamping wheel 8 is provided with anti-skid grooves that are staggered in both horizontal and vertical directions, and the first swing arm 2, the second swing arm 3, the clamping frame 4 and the articulated arm 703 are all arranged as a frame-type structure with a hollow interior. During the use of the device, since the anti-skid grooves that are staggered in both horizontal and vertical directions are evenly arranged on the cylindrical surface of the clamping wheel 8, the friction resistance when the clamping wheel 8 contacts the outer end wall of the wall can be effectively improved, which is beneficial to improving the stability of the device when clamping the wall for hoisting. At the same time, since the main structures such as the first swing arm 2, the second swing arm 3, the clamping frame 4 and the articulated arm 703 are arranged as a frame-type structure with a hollow interior, while ensuring the structural strength, the amount of metal materials used in the manufacturing process of the device can be greatly reduced, which is beneficial to reducing the manufacturing cost of the device and can achieve overall lightweight production of the device.

[0064] Specifically, the working principle and operation method of the present invention are as follows:

[0065] The hook on the hanging tower is connected to the second hanging hole 105, and the device is hung in a suspended state, so that the second rack frame 104 fixedly connected to the second hanging hole 105 moves upward relatively in the frame body 1, and with the meshing of the rack teeth, the first gear 201 drives the first swing arm 2 to rotate outward clockwise, and the second gear 301 drives the second swing arm 3 to rotate outward counterclockwise, and the lower ends of the first swing arm 2 and the second swing arm 3 drive the corresponding clamping frames 4 to move away from each other synchronously, so that the device is in an open state. After that, the device is lowered onto the vertical wall so that the bottom of the frame 1 rests on the top of the wall, and then the hook originally hooked on the second hanging hole 105 is released and re-hooked on the first hanging hole 103. Then the staff controls the wire rope of the tower crane to drive the hook to gradually rise. Under the connection of the hook, the first hanging hole 103 drives the first rack 102 to rise upward in the frame 1. Under the meshing of the gear rack, the first gear 201 drives the first swing arm 2 to rotate counterclockwise, and the second gear 301 drives The second swing arm 3 rotates clockwise, and the lower ends of the first swing arm 2 and the second swing arm 3 are synchronously close to each other, driving the clamping frames 4 on the left and right sides to synchronously approach the end walls on the left and right sides of the wall, and finally making the numerous auxiliary clamping mechanisms 7 arranged in the clamping frames 4 on the left and right sides abut against the end walls of the wall, presenting a gradually clamped state. When the wall is not off the ground, the device is controlled to be slowly lowered, and under the influence of the unidirectional rolling of the clamping wheel 8, the device can still slide down along the wall when it is in a state of being clamped on the outside of the wall, thereby lifting The lifting clamping frame 4 covers the range on the wall, and then the tower crane continues to pull the device upward to lift the wall clamped between the left and right clamping frames 4. During the lifting process, affected by the gravity of the device and the wall, the first rack 102 continues to maintain a tendency to move relatively upward in the frame 1, so that the lower ends of the first swing arm 2 and the second swing arm 3 maintain a tendency to approach each other, thereby allowing the left and right clamping frames 4 to drive the auxiliary clamping mechanism 7 to clamp on the outside of the wall, thereby stably clamping and lifting the assembled wall.

[0066] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional and highly secure assembled building lifting fixture, comprising a frame (1), characterized in that: A longitudinally arranged fixed shaft (101) is rotatably mounted at the center position of the frame (1); a first rack frame (102) that slides up and down is mounted on the left side of the frame (1); a vertically arranged first hanging hole (103) is fixedly mounted on the top of the first rack frame (102); a second rack frame (104) that slides up and down is mounted on the right side of the frame (1); a vertically arranged second hanging hole (105) is fixedly mounted on the top of the second rack frame (104); a first swing arm (2) that protrudes toward the lower left side of the frame (1) is rotatably connected to the fixed shaft (101); and a first rack frame (102) that is movably sleeved on the outside of the fixed shaft (101) is fixedly mounted on the first swing arm (2). The fixed shaft (101) is rotatably connected to a second swing arm (3) extending toward the lower right side of the frame (1), and the second swing arm (3) is fixedly mounted with a second gear (301) movably sleeved on the outside of the fixed shaft (101); the first rack frame (102) is vertically provided with a rack meshing on the right side of the first gear (201) and a rack meshing on the left side of the second gear (301); the second rack frame (104) is vertically provided with a rack meshing on the left side of the first gear (201) and a rack meshing on the right side of the second gear (301); the lower ends of the first swing arm (2) and the second swing arm (3) are both mounted with a vertically arranged clamping frame (4); A first rotating shaft (5) arranged longitudinally is rotatably mounted on the lower end of the first swing arm (2), and the first rotating shaft (5) is fixedly connected to a clamping frame (4) located on the left side; the clamping frame (4) located on the left side is rotatably connected to the lower end of the first swing arm (2) via the first rotating shaft (5); a third rotating shaft (6) arranged longitudinally is rotatably mounted on the lower end of the second swing arm (3), and the third rotating shaft (6) is fixedly connected to the clamping frame (4) located on the right side; the clamping frame (4) located on the right side is rotatably connected to the lower end of the second swing arm (3) via the third rotating shaft (6); A longitudinally arranged second rotating shaft (501) is rotatably mounted at the bent positions of the two first swing arms (2), and a first sprocket transmission mechanism (502) is transmission-connected between the second rotating shaft (501) and the fixed shaft (101), a second sprocket transmission mechanism (503) is transmission-connected between the first rotating shaft (5) and the second rotating shaft (501), a longitudinally arranged fourth rotating shaft (601) is rotatably mounted at the bent position of the second swing arm (3), and a third sprocket transmission mechanism (602) is transmission-connected between the fourth rotating shaft (601) and the fixed shaft (101), and a fourth sprocket transmission mechanism (603) is transmission-connected between the third rotating shaft (6) and the fourth rotating shaft (601); An auxiliary clamping mechanism (7) is installed in the clamping frame (4), and the auxiliary clamping mechanism (7) includes a slide groove (701) symmetrically opened on the clamping frame (4) from top to bottom, and the slide groove (701) is vertically opened on the end wall of the clamping frame (4), a longitudinally arranged shaft rod (702) is slidably inserted in the slide groove (701), and a hinged arm (703) extending toward the frame body (1) is fixedly installed on the shaft rod (702), a bearing block (704) is hinged between the ends of the upper and lower hinged arms (703), a tension spring (705) is hooked and connected between the upper and lower shaft rods (702), and a clamping wheel (8) is installed in the bearing block (704); The clamping wheel (8) is rotatably mounted in the bearing block (704); a ratchet (801) coaxially arranged therewith is fixedly mounted on the circular end surface of the clamping wheel (8); a clamping block (802) adapted to the ratchet (801) is slidably inserted in the bearing block (704); and a spring (803) for elastically supporting the clamping block (802) is installed in the bearing block (704).

2. A multifunctional and highly secure assembled building lifting fixture according to claim 1, characterized in that: The first swing arm (2) and the second swing arm (3) are both arranged as L-shaped structures with the lower ends bent downwards.

3. The multifunctional and highly secure assembled building hoisting fixture according to claim 1 is characterized in that: Two first swing arms (2) are provided in total. The two first swing arms (2) are both provided on the left side of the frame body (1). A vertically arranged clamping frame (4) is installed at the lower end of the two first swing arms (2). The two first swing arms (2) are respectively provided on the front and rear sides of the second swing arm (3).

4. The multifunctional and highly secure assembled building lifting fixture according to claim 1 is characterized in that: A third gear (706) is coaxially mounted at the hinge of the articulated arm (703) and the bearing block (704), and the third gear (706) is fixedly connected to the articulated arm (703), and the upper and lower third gears (706) are meshed with each other.

5. The multifunctional and highly secure assembled building hoisting fixture according to claim 4 is characterized in that: A plurality of the auxiliary clamping mechanisms (7) are provided, and the plurality of auxiliary clamping mechanisms (7) are evenly distributed on the clamping frame (4) from top to bottom.

6. The multifunctional and highly secure assembled building hoisting fixture according to claim 1 is characterized in that: The cylindrical surface of the clamping wheel (8) is provided with anti-slip grooves that are staggered in a horizontal and vertical manner. The first swing arm (2), the second swing arm (3), the clamping frame (4) and the articulated arm (703) are all arranged as frame-type structures with a hollow interior.

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