An adjustable form hanger device

Abstract

The utility model provides a adjustable hanging mould device relates to building construction technical field, including hanging mould mechanism, the hanging mould mechanism includes bottom mould plate subassembly, hangs the mechanism and hoists the crossbeam, bottom mould plate subassembly bottom mould plate, cross keel and hoists the keel, the hanging assembly includes U type pressure bearing frame, pressure bearing beam board and leveling nut, the U type pressure bearing frame includes U type bolt, pre -buried screw rod, cone mother, pressure bearing screw rod and frame piece, the U type bolt is located in the downside of hoisting the keel and is crossed and is resisted, leveling nut is screwed on pressure bearing screw rod, pressure bearing beam board is resisted in the upside of hoisting the crossbeam, leveling nut is screwed on pressure bearing screw rod, leveling nut is resisted in the upside of frame piece, in the utility model, through U type pressure bearing frame can complete bottom mould plate hoisting fast, to facilitate the plugging of prefabricated hole on floor.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to an adjustable formwork device. Background Technology

[0002] Against the backdrop of rapid urbanization and increasingly stringent requirements for building quality, the current mainstream practice for sealing pre-reserved openings in traditional floor slabs involves pouring micro-expansion concrete after structural completion and relying on scaffolding to support the bottom formwork. However, in this traditional process, the bottom formwork depends on the support below the opening, requiring repeated scaffolding erection and dismantling as construction progresses. This not only consumes a lot of manpower and time but also leads to serious waste of materials such as steel pipes and fasteners. Furthermore, the pre-cast holes in the upper and lower floor slabs are usually aligned vertically, and the process is constrained by the fixed logic of "construction layer by layer from bottom to top." The upper support work can only be carried out after the lower opening is poured and the concrete reaches the specified strength. This seriously slows down the construction pace, significantly extends the construction period, and thus severely restricts the overall project progress, significantly increasing the project's time and management costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an adjustable hoisting device, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An adjustable formwork device includes a precast hole in a floor slab. A formwork lifting mechanism is installed within the precast hole. The formwork lifting mechanism includes a bottom formwork assembly, a hanging mechanism, and a lifting beam. The bottom formwork assembly includes a bottom formwork sealed below the precast hole, several horizontal joists fixed at intervals below the bottom formwork, and several lifting joists vertically arranged below the horizontal joists. The lifting beam is parallel to the lifting joists and spans across the precast hole. The hanging mechanism includes a U-shaped pressure-bearing frame, a pressure-bearing beam, and a leveling nut. The pressure-bearing beam abuts against the upper side of the lifting beam. The U-shaped pressure-bearing frame is suspended between the pressure-bearing beam and the lifting joists. The leveling nut is threaded to the top of the U-shaped pressure-bearing frame and abuts against the upper side of the pressure-bearing beam.

[0005] Preferably, the U-shaped pressure-bearing frame includes U-bolts, embedded screws, conical nuts, pressure-bearing screws, and frame members. The bottom template is located on both sides of the lifting keel and has lifting holes. The U-bolts span across and abut against the lower side of the lifting keel. The embedded screws are detachably installed at both ends of the U-bolts. The embedded screws vertically pass through the lifting holes and extend upwards. The conical nuts are threadedly connected and sleeved on the top of the embedded screws. The pressure-bearing screws are threadedly connected to the upper side of the conical nuts. The frame members are slidably sleeved on the top of the pressure-bearing screws and snapped onto the upper side of the pressure-bearing beam plate. The leveling nut is threadedly connected to the pressure-bearing screws and abuts against the upper side of the frame members.

[0006] Preferably, the upper and lower sides of the cone-shaped nut are provided with connecting screw holes that are threadedly engaged with the pressure-bearing screw and the pre-embedded screw, respectively, and a partition plate is provided between the upper and lower connecting screw holes.

[0007] Preferably, the outer wall of the pressure-bearing screw is provided with a plurality of vertical grooves axially, and the frame member is provided with guide strips that convex and concave with the vertical grooves.

[0008] Preferably, the lower end of the pre-embedded screw is threadedly connected to a nut sleeve, the lower outer wall of the nut sleeve is integrally formed with a limiting nut, the nut sleeve is slidably inserted into the lifting hole, the limiting nut abuts against the lower side of the bottom template, and the lower end of the nut sleeve is rotatably connected to a disassembly sleeve, the disassembly sleeve being threadedly fitted onto the top of the U-bolt.

[0009] Preferably, the lower end of the nut sleeve is provided with a rotating ring groove, and the top of the disassembly sleeve is provided with a connecting ring that slides and engages with the rotating ring groove.

[0010] This utility model provides an adjustable hoisting mold device. It has the following beneficial effects: 1. In this utility model, a U-shaped lifting component is formed by a U-shaped pressure-bearing frame, which lifts the bottom template to the lower side of the precast hole, replacing the traditional support frame. This allows for simultaneous construction of precast holes in multi-story slabs, improving the construction efficiency of precast hole sealing.

[0011] 2. In this utility model, the bottom template can be adjusted by pulling the leveling nut, so that the bottom template can be tightly sealed on the lower side of the precast hole to avoid leakage during concrete pouring.

[0012] 3. In this utility model, after the sealing operation is completed, the pressure-bearing screw and nut sleeve can be rotated to quickly disassemble the U-bolt and the pressure-bearing screw, which facilitates the disassembly of the bottom template. At the same time, it avoids the U-bolt protruding out of the precast hole and causing safety hazards. In addition, it can avoid leakage of the waterproof layer caused by violent cutting. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an adjustable hoisting device according to the present invention; Figure 2 for Figure 1 A sectional view; Figure 3 This is a schematic diagram of the lifting mechanism in this utility model; Figure 4 This is a schematic diagram of the U-shaped pressure-bearing frame in this utility model.

[0014] In the diagram: 1. Floor slab; 2. Precast hole; 3. Hoisting beam; 4. Bottom formwork; 5. Horizontal joist; 6. Hoisting joist; 7. Bearing beam; 8. Leveling nut; 9. U-bolt; 10. Embedded threaded rod; 11. Conical nut; 12. Bearing threaded rod; 13. Frame component; 14. Disassembly sleeve; 15. Nut sleeve; 16. Connecting ring; 17. Limiting nut; 18. Vertical slide groove. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] This utility model embodiment provides an adjustable hoisting formwork device, such as... Figure 1-3 As shown, it includes a precast hole 2 opened on the floor slab 1, and a formwork lifting mechanism is installed in the precast hole 2. The formwork lifting mechanism includes a bottom formwork 4 assembly, a hanging mechanism and a lifting beam 3.

[0017] The bottom template 4 assembly includes a bottom template 4 that is sealed under the precast hole 2, a number of horizontal keels 5 that are fixed at intervals under the bottom template 4, and a number of lifting keels 6 that are vertically arranged under the horizontal keels 5. The bottom template 4 is located on both sides of the lifting keel 6 and has lifting holes. The size of the bottom template 4 is larger than the size of the precast hole 2 and can completely seal under the precast hole 2.

[0018] The hoisting beam 3 is parallel to the hoisting keel 6. The length of the hoisting beam 3 is greater than the length of the precast hole 2, so that the two ends of the hoisting beam 3 can be laid across the floor slabs 1 on both sides of the precast hole 2 to bear pressure on the upper side of the precast hole 2.

[0019] The suspension mechanism includes a U-shaped pressure-bearing frame, a pressure-bearing beam plate 7, and a leveling nut 8. The U-shaped pressure-bearing frame is suspended between the pressure-bearing beam plate 7 and the lifting keel 6. The pressure-bearing beam plate 7 abuts against the upper side of the lifting crossbeam 3. U-shaped slots are provided on both sides of the pressure-bearing beam plate 7.

[0020] like Figure 4As shown, the U-shaped pressure-bearing frame includes a U-bolt 9, a pre-embedded screw 10, a conical nut 11, a pressure-bearing screw 12, and a frame member 13. The U-bolt 9 spans and abuts against the lower side of the hoisting keel 6. A disassembly sleeve 14 is threadedly connected to the top of the U-bolt 9. The disassembly sleeve 14 is threadedly fitted onto the top of the U-bolt 9. A nut sleeve 15 is rotatably connected to the top of the disassembly sleeve 14. A rotating annular groove is formed at the lower end of the nut sleeve 15. A connecting ring 16 that slides and engages with the rotating annular groove is provided at the top of the disassembly sleeve 14. The lower outer wall of the nut sleeve 15 is integrally formed and limited. Nut 17, the nut sleeve 15 is slidably inserted into the lifting hole, the limiting nut 17 abuts against the lower side of the bottom template 4, the nut sleeve 15 passes through the upper outer wall of the bottom template 4 and is set in a conical shape, the lower end of the pre-embedded screw 10 is threaded to the upper side of the nut sleeve 15, the pre-embedded screw 10 is vertically inserted through the lifting hole and extends upward, the U-bolt 9 and the pre-embedded screw 10 can be quickly disassembled by screwing the limiting nut 17 respectively, so as to facilitate the disassembly of the bottom template 4 after casting and forming, while avoiding the safety hazards caused by the U-bolt 9 protruding from the floor slab 1, and also avoiding the leakage of the waterproof layer caused by violent cutting; The length of the pre-embedded screw 10 is less than the thickness of the floor slab 1, so that the pre-embedded screw 10 can be completely embedded in the precast hole 2. A water-stop plate is provided in the middle of the pre-embedded screw 10. The upper and lower sides of the conical nut 11 are provided with connecting screw holes that are threaded to the bearing screw 12 and the pre-embedded screw 10, respectively. A partition plate is provided between the upper and lower connecting screw holes. The conical nut 11 is threaded between the bearing screw 12 and the pre-embedded screw 10. An auxiliary groove is opened on the upper side of the conical nut 11. The auxiliary groove has an integrally formed screw rib for easy disassembly of the conical nut 11. Screwing the pre-embedded screw 10 or screwing the screw rib can quickly disassemble the bearing screw 12 and use it to separate the pre-embedded screw 10. The pre-embedded screw 10 is completely pre-set in the poured concrete of the precast hole 2, which can avoid the safety hazards caused by the protruding bearing screw 12 and also avoid waterproof leakage caused by violent disassembly.

[0021] The outer wall of the pressure-bearing screw 12 is provided with a plurality of vertical sliding grooves 18 axially. The frame member 13 is provided with a connecting hole in the middle. The inner wall of the connecting hole is provided with a guide strip that convexly and concavely matches the vertical sliding grooves 18. The frame member 13 is slidably sleeved on the pressure-bearing screw 12. The lower side of the frame member 13 is provided with a positioning groove. The bottom wall of the positioning groove abuts against the upper side of the pressure-bearing beam plate 7. The side wall of the positioning groove is engaged with the front and rear ends of the pressure-bearing beam plate 7. The leveling nut 8 is threadedly connected to the pressure-bearing screw 12. The leveling nut 8 abuts against the upper side of the frame member 13.

[0022] Working principle: In this utility model, when the precast hole 2 on the floor slab 1 needs to be sealed, the horizontal keel 5 and the hoisting keel 6 are fixed to the lower side of the bottom formwork 4, forming a hoisting frame on the lower side of the bottom formwork 4, and creating an assembly gap between the hoisting keel 6 and the bottom formwork 4. By disassembling the sleeve 14 and the nut sleeve 15, the U-bolt 9 and the pre-embedded screw 10 are assembled into a U-shaped structure. The pre-embedded screw 10 is aligned with the hoisting hole and passed through, so that the nut sleeve 15 is inserted into the hoisting hole. The limiting nut 17 abuts against the lower side of the hoisting hole, forming a seal. The U-bolt 9 crosses and abuts against the lower side of the hoisting keel 6, preventing leakage from the hoisting hole during the pouring of the precast hole 2, and through the cone The main body 1111 is connected to the upper side of the pre-embedded screw 10. Then, the lifting beam 3 is placed on the upper side of the precast hole 2 on the floor slab 1, so that it is placed between the two bearing screws 12. Then, the screw bearing beam plate 7, the frame component 13, and the leveling nut 8 are connected to the bearing screw 12 in sequence. The bearing beam plate 7 abuts against the upper side of the lifting beam 3, the frame component 13 is placed on the bearing beam plate 7, and the leveling nut 8 abuts against the upper side of the frame component 13, forming a lifting bearing frame. By rotating the leveling nut 8, the height and leveling of the bottom template 4 can be adjusted so that the bottom template 4 can tightly abut against the lower side of the precast hole 2, so as to complete the sealing and pouring of the precast hole 2. After the concrete has completely solidified, the bearing screw 12 and U-bolt 9 can be quickly disassembled by using the leveling nut 8 and nut sleeve 15, so as to facilitate the removal of the bottom formwork 4 and avoid the safety hazards caused by the protruding bearing screw 12 and U-bolt 9.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable formwork hoisting device, comprising prefabricated holes formed in a floor slab, characterized in that: A formwork lifting mechanism is installed inside the precast hole. The formwork lifting mechanism includes a bottom formwork assembly, a hanging mechanism, and a lifting beam. The bottom formwork assembly includes a bottom formwork that is sealed on the lower side of the precast hole, several horizontal keels that are fixed at intervals on the lower side of the bottom formwork, and several lifting keels that are vertically arranged on the lower side of the horizontal keels. The lifting beam is parallel to the lifting keels and spans across the precast hole. The hanging mechanism includes a U-shaped pressure-bearing frame, a pressure-bearing beam plate, and a leveling nut. The pressure-bearing beam plate abuts against the upper side of the lifting beam. The U-shaped pressure-bearing frame is suspended between the pressure-bearing beam plate and the lifting keels. The leveling nut is threadedly connected to the top of the U-shaped pressure-bearing frame and abuts against the upper side of the pressure-bearing beam plate.

2. The adjustable formwork device according to claim 1, characterized in that: The U-shaped pressure-bearing frame includes U-bolts, embedded screws, conical nuts, pressure-bearing screws, and frame members. The bottom template is located on both sides of the lifting keel and has lifting holes. The U-bolts span across and abut against the lower side of the lifting keel. The embedded screws are detachably installed at both ends of the U-bolts. The embedded screws pass vertically through the lifting holes and extend upwards. The conical nuts are threadedly connected and sleeved on the top of the embedded screws. The pressure-bearing screws are threadedly connected to the upper side of the conical nuts. The frame members are slidably sleeved on the top of the pressure-bearing screws and are snapped onto the upper side of the pressure-bearing beam plate. The leveling nut is threadedly connected to the pressure-bearing screws and abuts against the upper side of the frame members.

3. The adjustable formwork device according to claim 2, characterized in that: The upper and lower sides of the cone-shaped nut are provided with connecting screw holes that are threaded into the pressure-bearing screw and the pre-embedded screw, respectively, and a partition plate is provided between the upper and lower connecting screw holes.

4. The adjustable formwork device according to claim 3, characterized in that: The outer wall of the pressure-bearing screw is provided with several vertical grooves axially, and the frame is provided with guide strips that convex and concave with the vertical grooves.

5. An adjustable formwork lifting device according to claim 4, characterized in that: The lower end of the pre-embedded screw is threadedly connected to a nut sleeve. The lower outer wall of the nut sleeve is integrally formed with a limiting nut. The nut sleeve is slidably inserted into the lifting hole. The limiting nut abuts against the lower side of the bottom template. The lower end of the nut sleeve is rotatably connected to a disassembly sleeve. The disassembly sleeve is threadedly fitted onto the top of the U-bolt.

6. An adjustable formwork lifting device according to claim 5, characterized in that: The lower end of the nut sleeve is provided with a rotating ring groove, and the top of the disassembly sleeve is provided with a connecting ring that slides and engages with the rotating ring groove.

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