T-beam formwork hoisting device

Abstract

The present application relates to hoisting device technical field, disclose a kind of T beam formwork hoisting device, including T beam formwork and hoisting device, hoisting device includes two long crossbars of side by side arrangement, long crossbar front end is fixed with vertical pole, two long crossbar rear end between and two vertical pole top end between are fixed with short crossbar, vertical pole rear side is fixed with clamping arm, the bottom end of two vertical pole front side surface is fixed with same balance bar;Vertical pole is equipped with several groups of active block and driven block that cooperate with each other at equal intervals in adjacent vertical column place, and the side surface of vertical pole is close to adjacent vertical pole and is provided with the square groove corresponding with the position of driven block and the size is adapted.The present application, clamping arm is as through lifting support point, balance bar and T beam formwork are adhered to force, driven block abuts and fixes T beam formwork, when hoisting, prevent relative sliding between T beam formwork and hoisting device, maintain T beam formwork posture stable, improve construction safety.

Description

Technical Field

[0001] This invention belongs to the technical field of hoisting devices, specifically a hoisting device for T-beam formwork. Background Technology

[0002] In the current construction process of precast T-beams, due to the top-heavy nature of the T-beam formwork, the weight distribution of the formwork is uneven, and the center of gravity is biased to one side. During lifting, the slings lack appropriate anchor points on the formwork. During the lifting process, the formwork often swings excessively due to the instability of the center of gravity, which can easily lead to collisions in narrow spaces. Since the center of gravity of the formwork is not in the direction of the slings, it is difficult for the formwork to be in a vertical or upright position when suspended in the air, making it difficult to control during installation and positioning, and difficult to accurately control when checking the formwork.

[0003] Patent CN218754548U discloses a lifting tool for T-beam steel formwork, including two fixed hook frames and a connecting frame. The two fixed hook frames are C-shaped and arranged in parallel, and are fixedly connected by the connecting frame. Each fixed hook frame is equipped with a connecting plate with several connecting holes. Lifting lugs are fixed on the connecting frame. This patent prevents the T-beam formwork from slipping and allows it to be folded after use, reducing space occupation. Patent CN218950808U discloses a lifting device for installing and dismantling precast T-beam formwork, including a vertical beam. A clamping arm and a lifting arm are installed at different heights on one side of the outer wall of the vertical beam. It also includes a horizontal beam. Two vertical beams are provided, and the horizontal beam is installed between the two vertical beams. This patent utilizes the distance between multiple fixed structures to adjust the fixed position of the lifting ring, thereby adjusting the center of gravity to meet the requirement that the center of gravity positions of the T-beam middle beam formwork and the T-beam side beam formwork differ after lifting.

[0004] In the aforementioned patent, in order to facilitate the installation and disassembly of the hoisting device, the hoisting device is usually not made to fit exactly with the T-beam formwork. However, in this case, the T-beam formwork will slide in the air during hoisting, which will affect the assembly of the T-beam formwork.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a T-beam formwork hoisting device to solve the above-mentioned problems in the prior art.

[0007] To achieve the above objectives, the present invention provides a T-beam formwork hoisting device, comprising a T-beam formwork and a hoisting device. The T-beam formwork is generally inverted L-shaped. A plurality of vertical columns are fixed at equal intervals on the front side of the horizontal plate of the T-beam formwork. A horizontal column is fixed near the top of the rear side of the vertical columns. The hoisting device includes two long horizontal bars arranged side-by-side. A vertical bar is fixed to the front end of each long horizontal bar. Short horizontal bars are fixed between the rear ends of the two long horizontal bars and between the top ends of the two vertical bars. A clamping arm is fixed to the rear side of each vertical bar, with its top surface tightly fitted to the horizontal column. The rear side of the clamping arm is flush with the front end of the vertical plate of the T-beam formwork. The sides are tightly fitted together, and the two vertical rods are respectively close to the two middle vertical columns. Several sets of cooperating active blocks and passive blocks are equally spaced inside the vertical rods near the adjacent vertical columns. The cross-sections of the active blocks and the passive blocks are both right-angled trapezoids. The inclined side of the active block and the inclined side of the passive block are tightly fitted together. The side of the vertical rod near the adjacent vertical rod has a square groove that corresponds to the position of the passive block and is adapted to its size. The passive block passes through the square groove at the corresponding position and abuts against the adjacent vertical column. The same balance bar is fixed at the bottom of the front side of the two vertical rods.

[0008] In the technical solution of the present invention, mounting seats are fixed on both the front and rear sides of the vertical rod near the active block, and a threaded rod that is threadedly connected to the active block is rotatably connected between the two mounting seats. One end of the threaded rod passes through the adjacent mounting seat and is fixed with a knob.

[0009] In the technical solution of the present invention, a limiting rod parallel to the threaded rod is fixed between the inner walls of the front and rear sides of the vertical rod, and the limiting rod is slidably connected to the active block.

[0010] In the technical solution of the present invention, a fixing block is fixed in the middle of the top and bottom surfaces of the driven block, a guide rod is fixed inside the vertical rod and slidably connected to the fixing block, and a spring sleeved on the guide rod is installed between the adjacent inner walls of the fixing block and the vertical rod.

[0011] In the technical solution of the present invention, each of the two short crossbars has an end lug fixed to the middle of its opposite side, and the end lug has an end lifting hole.

[0012] In the technical solution of the present invention, the two opposite ends of the long crossbars are each fixed with a side lifting lug, and the side lifting lug is provided with a plurality of side lifting holes at equal intervals.

[0013] In the technical solution of the present invention, a number of reinforcing rods are fixed at equal intervals on the front side of the vertical plate of the T-beam template, one of which is at the same height as the horizontal column, and the top surface of the rear end of the clamping arm is in close contact with the reinforcing rod at the corresponding position.

[0014] In the technical solution of the present invention, a fixing plate is fixed on the top surface of the clamping arm near the adjacent vertical rod. The fixing plate is threaded with a control bolt. The control bolt passes through the fixing plate and is rotatably connected to a movable block. The movable block is located between the fixing plate and the vertical rod on the same side. The bottom surface of the movable block is in close contact with the top surface of the clamping arm.

[0015] In the technical solution of the present invention, brackets are fixed on both the left and right edges of the top surface of the balance bar, and a bidirectional lead screw is rotatably connected between the two brackets. The threads at both ends of the bidirectional lead screw are in opposite directions, and clamps are threaded to both ends of the bidirectional lead screw. An adjustment knob is fixedly sleeved on the middle of the outer wall of the bidirectional lead screw.

[0016] In the technical solution of the present invention, a fixing rod parallel to the bidirectional lead screw is fixed between the two brackets, and both clamps are slidably connected to the fixing rod.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. In this invention, the clamp arm serves as a lifting fulcrum. The clamp arm is attached to the horizontal column and the reinforcing rod. Under the action of gravity, the balance bar automatically attaches to the vertical column, which plays a role in preventing overturning and ensuring the stability of the T-beam formwork during hoisting, thereby improving construction safety.

[0019] 2. In this invention, the driven block passes through the square groove and abuts against the vertical column. The two clamping blocks approach each other and abut against the two vertical columns in the middle. The movable block also abuts against the horizontal column. Multiple fixation points make the connection between the T-beam template and the hoisting device more stable and prevent the T-beam template from sliding during hoisting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a bottom view of the present invention;

[0022] Figure 3 This is a schematic diagram of the T-beam template in this invention;

[0023] Figure 4 This is a schematic diagram of the hoisting device in this invention;

[0024] Figure 5 This is a partial structural schematic diagram of the hoisting device in this invention;

[0025] Figure 6 This is a sectional view of the vertical rod in this invention.

[0026] Figure 7 This is a partial structural diagram of the interior of the vertical rod in this invention;

[0027] Figure 8 This is a schematic diagram of the structure of the card arm in this invention;

[0028] Figure 9 This is a schematic diagram of the balance bar structure in this invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. T-beam formwork; 10. Vertical columns; 11. Horizontal columns; 12. Reinforcing bars;

[0031] 2. Lifting device; 20. Long horizontal bar; 200. Side lifting lug; 2000. Side lifting hole; 21. Short horizontal bar; 210. End lifting lug; 2100. End lifting hole; 22. Vertical bar; 220. Driving block; 221. Mounting base; 222. Threaded rod; 223. Knob; 224. Limiting rod; 225. Driven block; 226. Fixed block; 227. Guide rod; 228. Spring; 229. Square groove; 23. Clamping arm; 230. Fixing plate; 231. Movable block; 232. Control bolt; 24. Balance bar; 240. Bracket; 241. Double-acting screw; 2410. Adjusting knob; 242. Fixed rod; 243. Clamping block. Detailed Implementation

[0032] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0033] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0034] Reference Figures 1-9 The T-beam template hoisting device of the present invention includes a T-beam template 1 and a hoisting device 2. The T-beam template 1 is generally inverted L-shaped. A plurality of vertical columns 10 are fixed at equal intervals on the front side of the horizontal plate of the T-beam template 1. A horizontal column 11 is fixed on the rear side of the plurality of vertical columns 10 near the top. The hoisting device 2 includes two long horizontal bars 20 arranged side by side. A vertical bar 22 is fixed at the front end of the long horizontal bar 20. A short horizontal bar 21 is fixed between the rear ends of the two long horizontal bars 20 and between the top ends of the two vertical bars 22. A clamping arm 23 is fixed on the rear side of the vertical bar 22, and its top surface is tightly fitted with the horizontal column 11. The rear side of the clamping arm 23 is tightly fitted with the front side of the vertical plate of the T-beam template 1. The two vertical bars 22 are respectively close to the two middle vertical columns 10. The same balance bar 24 is fixed at the bottom end of the front side of the two vertical bars 22. In use, the clamping arm 23 is used as a lifting fulcrum, and the balance bar 24 is fitted with the two middle vertical columns 10, so that the hoisting device 2 fits and fixes the T-beam template 1.

[0035] In this invention, several sets of cooperating active blocks 220 and driven blocks 225 are provided at equal intervals near adjacent vertical columns 10 inside the vertical rod 22. The cross-sections of the active blocks 220 and driven blocks 225 are both right-angled trapezoids. The inclined side surfaces of the active blocks 220 and driven blocks 225 are closely fitted. The side surface of the vertical rod 22 near adjacent vertical rods 22 is provided with square grooves 229 that correspond to the position of the driven blocks 225 and are adapted in size. After the driven blocks 225 pass through the square grooves 229 at the corresponding positions, they abut against the adjacent vertical columns 10, making it difficult for the vertical rods 22 and vertical columns 10 to slide relative to each other, thereby improving the stability of the T-beam formwork 1 during hoisting.

[0036] Specifically, mounting bases 221 are fixed on both the front and rear sides of the vertical rod 22 near the driving block 220. A threaded rod 222, which is threaded to the driving block 220, is rotatably connected between the two mounting bases 221. One end of the threaded rod 222 passes through the adjacent mounting base 221 and is fixed with a knob 223. The movement of the driving block 220 is controlled by the knob 223, which in turn pushes the driven block 225 to move and abut against the vertical column 10.

[0037] Furthermore, a limiting rod 224 parallel to the threaded rod 222 is fixed between the inner walls of the front and rear sides of the vertical rod 22. The limiting rod 224 is slidably connected to the active block 220. The limiting rod 224 guides the active block 220 to move and prevents the active block 220 from rotating with the threaded rod 222.

[0038] In addition, a fixing block 226 is fixed in the middle of the top and bottom surfaces of the driven block 225. A guide rod 227 that is slidably connected to the fixing block 226 is fixed inside the vertical rod 22. A spring 228 sleeved on the guide rod 227 is installed between the adjacent inner walls of the fixing block 226 and the vertical rod 22. The two guide rods 227 are used to support the driven block 225 and guide the movement of the driven block 225. The spring 228 facilitates the return of the driven block 225 to its original position.

[0039] In the above scheme, the two short crossbars 21 are fixed with end lifting lugs 210 at the middle of their opposite sides. The end lifting lugs 210 are provided with end lifting holes 2100. When the hoisting device 2 is in the field and in a non-load-bearing state, the steel rope is connected to the two end lifting lugs 210 through a lock.

[0040] Specifically, the two long horizontal bars 20 are fixed with side lifting lugs 200 at their opposite rear ends. The side lifting lugs 200 have several side lifting holes 2000 at equal intervals. The lifting device 2 uses three-point lifting when bearing the load. The steel rope connects the two side lifting lugs 200 and the end lifting lug 210 at the front end through a lock. The multiple side lifting holes 2000 on the side lifting holes 2000 can be easily adjusted according to the actual situation. The side lifting holes 2000 and the end lifting holes 2100 are all made of 5mm Q235 steel plates, which are drilled and welded to the rectangular frame.

[0041] In the above scheme, several reinforcing rods 12 are fixed at equal intervals on the front side of the vertical plate of the T-beam template 1. One of the reinforcing rods 12 is at the same height as the horizontal column 11. The top surface of the rear end of the clamping arm 23 is tightly fitted with the reinforcing rod 12 at the corresponding position. When the hoisting device 2 rises, the clamping arm 23 will drive the T-beam template 1 to rise.

[0042] Specifically, a fixing plate 230 is fixed on the top surface of the clamping arm 23 near the adjacent vertical bar 22. The fixing plate 230 is threaded with a control bolt 232. After passing through the fixing plate 230, the control bolt 232 is rotatably connected to a movable block 231. The movable block 231 is located between the fixing plate 230 and the vertical bar 22 on the same side. The bottom surface of the movable block 231 is in close contact with the top surface of the clamping arm 23, which can further fix the horizontal column 11 and the clamping arm 23 and improve stability.

[0043] In the above scheme, brackets 240 are fixed on both the left and right edges of the top surface of the balance bar 24. A bidirectional lead screw 241 is rotatably connected between the two brackets 240. The threads at both ends of the bidirectional lead screw 241 are opposite. Clamping blocks 243 are threaded to both ends of the bidirectional lead screw 241. An adjusting knob 2410 is fixedly sleeved on the middle of the outer wall of the bidirectional lead screw 241. The bidirectional lead screw 241 is rotated by adjusting the knob 2410, and the clamping blocks 243 on both sides are brought closer to each other. The clamping blocks 243 on both sides abut against the two vertical columns 10 in the middle, so that the balance bar 24 and the two vertical columns 10 in the middle are always in contact.

[0044] Specifically, a fixed rod 242 parallel to the bidirectional lead screw 241 is fixed between the two brackets 240, and both clamping blocks 243 are slidably connected to the fixed rod 242 to prevent the clamping blocks 243 from rotating with the bidirectional lead screw 241.

[0045] Furthermore, the long horizontal bar 20, the short horizontal bar 21, the vertical bar 22, and the balance bar 24 are all constructed by back-welding two B90×50×5mm square steel tubes.

[0046] The working principle of the T-beam formwork hoisting device of the present invention is as follows:

[0047] First, the hoisting device 2 is connected using a three-point lifting method. The locking buckle is fastened in the side lifting holes 2000 on both sides and the end lifting hole 2100 at the front end. The position of the side lifting holes 2000 is selected according to the actual situation.

[0048] After the steel rope and hoisting device 2 are connected, the hoisting equipment is operated to place the hoisting device 2 at an adjacent position on the outside of the T-beam template 1. Then, the hoisting equipment is operated to slowly move the hoisting device 2 closer to the T-beam template 1. At the same time, the manual assistance moves the clamping arm 23 to below the horizontal column 11. The knobs 223 are rotated, and the threaded rod 222 moves accordingly and pushes the driven block 225 to move. At the same time, the spring 228 is compressed. The driven block 225 passes through the square groove 229 and abuts against the vertical column 10. The control bolt 232 is rotated, and the movable block 231 moves and abuts against the horizontal column 11. The adjustment knob 2410 is rotated, and the double screw 241 rotates. The clamping blocks 243 on both sides move closer to each other and abut against the vertical column 10, making the fixation between the T-beam template 1 and the hoisting device 2 more stable and making the posture of the T-beam template 1 stable during hoisting.

[0049] After the T-beam template 1 is in place, the reverse knob 223, control bolt 232 and adjustment knob 2410, and spring 228 drive the driven block 225 to return to its original position, separating the T-beam template 1 and the hoisting device 2.

[0050] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A T-beam form hoist, characterized by: Including T beam template (1) and hoist device (2), the T beam template (1) is overall inverted L shape, several vertical columns (10) are fixedly arranged on the front side of the horizontal plate of the T beam template (1) at equal intervals, and a horizontal column (11) is fixedly arranged on the rear side of the several vertical columns (10) near the top end; The hoist device (2) includes two long crossbars (20) arranged side by side, a vertical rod (22) is fixedly arranged on the front end of the long crossbar (20), a short crossbar (21) is fixedly arranged between the rear end of the two long crossbars (20) and the top end of the two vertical rods (22), a clamping arm (23) with a top surface closely fitted with the horizontal column (11) is fixedly arranged on the rear side of the vertical rod (22), the rear side of the clamping arm (23) is closely fitted with the front side of the vertical plate of the T beam template (1), two vertical rods (22) are respectively arranged near two vertical columns (10), and a balance bar (24) is fixedly arranged on the front side of the bottom end of the two vertical rods (22). A plurality of sets of driving blocks (220) and driven blocks (225) are arranged at equal intervals in the vertical rod (22) near the adjacent vertical column (10), the cross section of the driving block (220) and the driven block (225) is all right-angled trapezoidal, the inclined side of the driving block (220) and the inclined side of the driven block (225) are closely fitted, a square groove (229) corresponding in position and size with the driven block (225) is formed in the side of the vertical rod (22) near the adjacent vertical column (10), and the driven block (225) is in abutment with the adjacent vertical column (10) after passing through the square groove (229) at the corresponding position. A fixed plate (230) is fixedly arranged on the top surface of the clamping arm (23) near the adjacent vertical rod (22), a control bolt (232) is threadedly connected with the fixed plate (230), an active block (231) is rotationally connected with the control bolt (232) after passing through the fixed plate (230), the active block (231) is located between the fixed plate (230) and the vertical rod (22) on the same side, and the bottom surface of the active block (231) is closely fitted with the top surface of the clamping arm (23). A support (240) is fixedly arranged on the left and right side edges of the top surface of the balance bar (24), a bidirectional screw rod (241) is rotationally connected between the two supports (240), the screw threads at the two ends of the bidirectional screw rod (241) are opposite in direction, a clamping block (243) is threadedly connected with the two ends of the bidirectional screw rod (241), and an adjusting knob (2410) is fixedly arranged on the middle part of the outer side wall of the bidirectional screw rod (241).

2. The T-beam form handling apparatus of claim 1, wherein: A mounting seat (221) is fixedly arranged on the front and rear sides of the vertical rod (22) near the driving block (220), a threaded rod (222) threadedly connected with the driving block (220) is rotationally connected between the two mounting seats (221), and a knob (223) is fixedly arranged on one end of the threaded rod (222) after passing through the adjacent mounting seat (221).

3. The T-beam form hoisting device of claim 2, wherein: The vertical rod (22) is fixed with a limiting rod (224) parallel to the threaded rod (222) between the inner walls on the front and back sides, and the limiting rod (224) is in sliding connection with the driving block (220).

4. The T-beam form hoist of claim 1, wherein: The top surface and the bottom surface of the driven block (225) are fixed with a fixed block (226) in the middle part, the vertical rod (22) is fixed with a guide rod (227) in sliding connection with the fixed block (226), and the fixed block (226) and the adjacent inner wall of the vertical rod (22) are installed with a spring (228) sleeved outside the guide rod (227).

5. The T-beam form hoist of claim 1, wherein: The middle part of the side face of the two short cross rods (21) opposite to each other is fixed with an end lifting lug (210), and the end lifting lug (210) is provided with an end lifting hole (2100).

6. The T-beam form hoist of claim 1, wherein: The rear end of the side face of the two long cross rods (20) opposite to each other is fixed with a side lifting lug (200), and the side lifting lug (200) is provided with a plurality of side lifting holes (2000) at equal intervals.

7. The T-beam form hoist of claim 1, wherein: The vertical plate of the T-beam formwork (1) is fixed with a plurality of reinforcing rods (12) at equal intervals on the front side, one of the reinforcing rods (12) has the same height as the horizontal column (11), and the rear end top surface of the clamping arm (23) is closely attached to the reinforcing rod (12) at the corresponding position.

8. The T-beam form hoist of claim 1, wherein: The two supports (240) are further fixed with a fixed rod (242) parallel to the bidirectional screw rod (241), and the two clamping blocks (243) are in sliding connection with the fixed rod (242).

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