Temporary support quick release device for large-span composite floor slab
By designing the coordination between hydraulic jacking rods and support brackets, and utilizing quick-release technology with locking blocks, locking rods, and rotating sleeves, the problem of time-consuming dismantling of temporary supports during the construction of large-span composite floor slabs was solved, improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN SIJIAN GRP CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-10
AI Technical Summary
In the construction of existing large-span composite floor slabs, the dismantling of temporary supports takes a long time, affecting construction efficiency and safety.
A quick-release device for temporary support of large-span composite floor slabs was designed. It utilizes hydraulic lifting rods and support brackets, and achieves rapid fixing and disassembly through the cooperation of locking blocks, locking rods and rotating sleeves. Combined with the fixing of support legs and knob bolts, the stability of the support and the disassembly efficiency are improved.
It enables the rapid fixing and dismantling of temporary supports, improving construction efficiency and ensuring construction safety and structural stability.
Smart Images

Figure CN224106868U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building tool technical field especially relates to large span composite floor temporary support quick release device. BACKGROUND
[0002] Large span composite floor is a kind of floor structure formed by the superposition of prefabricated concrete thin plate and cast-in-situ concrete, which uses prefabricated thin plate in factory as permanent formwork, and forms integral force component by cast-in-situ composite layer concrete, with the advantages of fast construction speed, high industrialization degree and formwork saving, etc.
[0003] During the construction of large span composite floor, the stiffness and bearing capacity of prefabricated thin plate are limited in construction stage, which cannot bear the weight of cast-in-situ concrete, construction load and equipment weight of construction personnel alone, and the thin plate cannot work effectively with the composite layer before the composite layer concrete reaches the design strength, in order to prevent the thin plate from deforming or even damaging during construction, ensure the construction safety and structure forming quality, temporary support is needed to be set below the prefabricated thin plate to assist supporting, so as to share the construction load and ensure the stability and safety of large span composite floor in construction stage, the existing temporary support generally uses support rod, the lower end of which is supported on the ground, and the upper end is locked with the floor by support piece, in subsequent construction, the temporary support needs to be disassembled, and due to the threaded locking, the disassembly takes a long time, therefore, the utility model provides large span composite floor temporary support quick release device to solve the problems in the prior art. SUMMARY
[0004] In view of the above problems, the utility model provides large span composite floor temporary support quick release device, which only needs to reset the rotating sleeve, take out the lock block and lock rod from the lock hole and rod hole to release the fixation, which is more convenient and efficient.
[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: large span composite floor temporary support quick release device, including hydraulic jacking rod and support support, the support support is used for fixing at the bottom of floor, the upper end of hydraulic jacking rod is rotationally provided with rotating sleeve, and the middle position of rotating sleeve top is provided with lock block, the both sides of lock block are provided with lock rod;
[0006] The lower part of the inside of support support is provided with bottom cavity, and the middle position of bottom cavity bottom is provided with lock hole matched with lock block, the both sides of lock hole are provided with rod hole matched with lock rod.
[0007] Further improvement lies in that: the inside of bottom cavity at both end positions above lock hole is provided with limiting protrusion, and the limiting protrusion is used for limiting the position of lock rod.
[0008] Further improvement lies in that the edge of the rotating sleeve top is provided with rubber, and the rubber is supported below the supporting bracket, and the outer side of the rotating sleeve is provided with anti-skid lines.
[0009] Further improvement lies in that the two ends of the supporting bracket are provided with first fixing holes, and the first fixing holes are provided with multiple groups, and the supporting bracket is fixed with the floor through the first fixing holes and bolts.
[0010] Further improvement lies in that the bottom of the hydraulic lifting rod is provided with a pad, and the pad is provided with a second fixing hole.
[0011] Further improvement lies in that the outer side of the hydraulic lifting rod is provided with a sleeve below, and the two sides of the sleeve are provided with hinged boxes, the inside of the hinged box is rotatably provided with a supporting leg, the outer side of the hydraulic lifting rod is provided with a friction groove below, and the friction groove is provided with a friction tooth, and the sleeve is provided with a knob bolt in a threaded manner, and the inner end of the knob bolt is matched with the friction tooth.
[0012] Further improvement lies in that the output rod of the hydraulic lifting rod is provided with a scale line, and the scale line is used to indicate the lifting height of the hydraulic lifting rod.
[0013] The beneficial effects of the present application are:
[0014] 1. The supporting bracket is fixed below the floor, and the hydraulic lifting rod is supported below the supporting bracket, so as to temporarily support the floor. When fixed, only need to insert the lock block into the lock hole, insert the lock rod into the rod hole into the bottom cavity, rotate the rotating sleeve, fix the lock rod and the bottom cavity, achieve the purpose of rotating the lock, when disassembled, only need to reset the rotating sleeve, take out the lock block and the lock rod from the lock hole and the rod hole to release the fixing, more convenient and high efficiency.
[0015] 2. In the process of supporting, the supporting leg can be rotated and opened, the sleeve is moved downward to make the supporting leg support on the ground, and the knob bolt and the friction tooth are fixed, so as to fix the position of the supporting leg and achieve the purpose of stable support and improve the reliability. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the front view of the present application;
[0017] Figure 2 It is the Figure 1 structure schematic view of A in the present application;
[0018] Figure 3 It is the supporting bracket schematic view of the present application;
[0019] Figure 4 It is the Figure 1 structure schematic view of B in the present application.
[0020] Wherein: 1, hydraulic jacking rod; 2, support support; 3, rotating sleeve; 4, lock block; 5, lock rod; 6, bottom cavity; 7, lock hole; 8, rod hole; 9, limit protrusion; 10, rubber; 11, anti-skid pattern; 12, first fixing hole; 13, pad; 14, second fixing hole; 15, sleeve; 16, hinge box; 17, support leg; 18, friction groove; 19, knob bolt; 20, scale line. DETAILED DESCRIPTION
[0021] In order to deepen the understanding of the utility model, the utility model will be further described in the following combined with examples, and the examples are only used to explain the utility model and do not constitute the limitation of the protection scope of the utility model.
[0022] Example one, according to Figure 1 、 2 , 3, 4, the example proposes a large-span composite floor temporary support quick disassembly device, including hydraulic jacking rod 1 and support support 2, the support support 2 is used for fixing at the bottom of the floor, the upper end of the hydraulic jacking rod 1 is rotationally provided with rotating sleeve 3, and the middle position at the top of rotating sleeve 3 is provided with lock block 4, the two sides of the lock block 4 are provided with lock rod 5;
[0023] The lower part in the support support 2 is provided with bottom cavity 6, and the middle position at the bottom of the bottom cavity 6 is provided with lock hole 7 matched with lock block 4, and the two sides of the lock hole 7 are provided with rod hole 8 matched with lock rod 5. When using, the support support 2 is fixed below the floor, and the hydraulic jacking rod 1 is supported below the support support 2, so as to temporarily support the floor, when fixing, only need to insert the lock block 4 into the lock hole 7, insert the lock rod 5 into the rod hole 8 into the bottom cavity 6, rotate the rotating sleeve 3, so that the lock rod 5 is fixed with the bottom cavity 6, the purpose of rotary lock is achieved, when disassembling, only need to reset the rotating sleeve 3, and the lock block 4 and the lock rod 5 are taken out from the lock hole 7 and the rod hole 8, so as to release the fixing, which is more convenient and efficient.
[0024] The inside of the bottom cavity 6 at the two end positions above the lock hole 7 is provided with limit protrusion 9, and the limit protrusion 9 is used for limiting the position of the lock rod 5. When using, the support support 2 is fixed below the floor, and the hydraulic jacking rod 1 is supported below the support support 2, so as to temporarily support the floor, when fixing, only need to insert the lock block 4 into the lock hole 7, insert the lock rod 5 into the rod hole 8 into the bottom cavity 6, rotate the rotating sleeve 3, so that the lock rod 5 is fixed with the bottom cavity 6, and is limited on the limit protrusion 9, the purpose of rotary lock is achieved.
[0025] The edge of the top of the rotating sleeve 3 is provided with rubber 10, and the rubber 10 is supported below the support bracket 2, and the outer side of the rotating sleeve 3 is provided with anti-skid lines 11, which facilitates manual rotation of the rotating sleeve 3. When in use, the support bracket 2 is fixed below the floor, and is supported below the support bracket 2 by the hydraulic lifting rod 1, thereby temporarily supporting the floor. When fixing, only need to insert the lock block 4 into the lock hole 7, insert the lock rod 5 into the rod hole 8 into the bottom cavity 6, rotate the rotating sleeve 3, so that the lock rod 5 is fixed with the bottom cavity 6, to achieve the purpose of rotating the lock, at this time, the support bracket 2 is erected above the rotating sleeve 3, the friction force is improved by the rubber 10, and unnecessary rotation of the rotating sleeve 3 is avoided.
[0026] The two ends of the support bracket 2 are provided with first fixing holes 12, and the first fixing holes 12 are provided with multiple groups, and the support bracket 2 is fixed with the floor through the first fixing holes 12 and the bolts. When in use, the support bracket 2 is placed below the floor, and is fixed with the floor through the first fixing holes 12 and the bolts.
[0027] The bottom of the hydraulic lifting rod 1 is provided with a pad 13, and the pad 13 is provided with a second fixing hole 14. When in use, the hydraulic lifting rod 1 is supported on the ground, and is fixed with the ground through the second fixing hole 14 and the bolts.
[0028] The output rod of the hydraulic lifting rod 1 is provided with a scale line 20, and the scale line 20 is used to indicate the lifting height of the hydraulic lifting rod 1. The lifting height of the hydraulic lifting rod 1 is observed.
[0029] Embodiment two, according to Figure 1 、 2 , 3, 4, the embodiment proposes a large-span composite floor temporary support quick disassembly device, comprising a hydraulic lifting rod 1 and a support bracket 2, the support bracket 2 is used for fixing at the bottom of the floor, the upper end of the hydraulic lifting rod 1 is rotatably provided with a rotating sleeve 3, and the middle position of the top of the rotating sleeve 3 is provided with a lock block 4, the two sides of the lock block 4 are provided with lock rods 5;
[0030] The bottom of the support bracket 2 is provided with a bottom cavity 6, and the middle position of the bottom of the bottom cavity 6 is provided with a lock hole 7 matched with the lock block 4, and the two sides of the lock hole 7 are provided with rod holes 8 matched with the lock rods 5. When in use, the support bracket 2 is fixed below the floor, and is supported below the support bracket 2 by the hydraulic lifting rod 1, thereby temporarily supporting the floor. When fixing, only need to insert the lock block 4 into the lock hole 7, insert the lock rod 5 into the rod hole 8 into the bottom cavity 6, rotate the rotating sleeve 3, so that the lock rod 5 is fixed with the bottom cavity 6, to achieve the purpose of rotating the lock, at this time, the support bracket 2 is erected above the rotating sleeve 3, the friction force is improved by the rubber 10, and unnecessary rotation of the rotating sleeve 3 is avoided.
[0031] The hydraulic jacking rod 1 is provided with a sleeve 15 outside and below, and the sleeve 15 is provided with a hinge box 16 on both sides, the hinge box 16 is provided with a supporting leg 17 rotating inside, the hydraulic jacking rod 1 is provided with a friction groove 18 below, and the friction groove 18 is provided with a friction tooth, the sleeve 15 is provided with a knob bolt 19 screwed, and the inner end of the knob bolt 19 is matched with the friction tooth. In the process of supporting, the supporting leg 17 can be opened by rotating, the sleeve 15 is moved downward to make the supporting leg 17 support on the ground, and the knob bolt 19 and the friction tooth are fixed, that is, the position of the supporting leg 17 is fixed, the purpose of stable support is achieved, and the reliability is improved.
[0032] The output rod of the hydraulic jacking rod 1 is provided with a scale line 20, and the scale line 20 is used for indicating the lifting height of the hydraulic jacking rod 1.
[0033] The large-span composite floor temporary support quick disassembly device fixes the support support 2 below the floor, supports the support support 2 below through the hydraulic jacking rod 1, thereby temporarily supporting the floor, and when fixed, only needs to insert the lock block 4 into the lock hole 7, insert the lock rod 5 into the rod hole 8 into the bottom cavity 6, rotate the rotating sleeve 3, so that the lock rod 5 is fixed with the bottom cavity 6, the purpose of rotating the lock is achieved, when disassembled, only needs to reset the rotating sleeve 3, and the lock block 4 and the lock rod 5 are taken out from the lock hole 7 and the rod hole 8, so that the fixing is released, which is more convenient and efficient. At the same time, in the process of supporting, the supporting leg 17 can be opened by rotating, the sleeve 15 is moved downward to make the supporting leg 17 support on the ground, and the knob bolt 19 and the friction tooth are fixed, that is, the position of the supporting leg 17 is fixed, the purpose of stable support is achieved, and the reliability is improved.
[0034] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A temporary support fast disassembly device for large-span composite floor, comprising a hydraulic jacking rod (1) and a support bracket (2), characterized in that: The support (2) is used for fixing at the bottom of the floor, the upper end of the hydraulic jacking rod (1) is rotationally provided with a rotating sleeve (3), and the middle position of the top of the rotating sleeve (3) is provided with a locking block (4), and the two sides of the locking block (4) are provided with locking rods (5). The lower part of the inside of the support (2) is provided with a bottom cavity (6), and the middle position of the bottom of the bottom cavity (6) is provided with a locking hole (7) matched with the locking block (4), and the two sides of the locking hole (7) are provided with rod holes (8) matched with the locking rods (5).
2. The temporary support quick-release device for long-span composite floor slabs according to claim 1, characterized in that: The inside of the bottom cavity (6) at the two end positions above the locking hole (7) is provided with limiting protrusions (9), and the limiting protrusions (9) are used for limiting the position of the locking rod (5).
3. The temporary support quick-release device for long-span composite floor slabs according to claim 1, characterized in that: The edge of the top of the rotating sleeve (3) is provided with a rubber (10), and the rubber (10) is supported below the support (2), and the outer side of the rotating sleeve (3) is provided with anti-skid lines (11).
4. The temporary support quick-release device for long-span composite floor slabs according to claim 1, characterized in that: The two ends of the support (2) are provided with first fixing holes (12), and the first fixing holes (12) are provided with multiple groups, and the support (2) is fixed with the floor through the first fixing holes (12) cooperating with bolts.
5. The temporary support quick-release device for long-span composite floor slabs according to claim 1, characterized in that: The bottom of the hydraulic jacking rod (1) is provided with a pad (13), and the pad (13) is provided with a second fixing hole (14).
6. The temporary support quick-release device for long-span composite floor slabs of claim 1, wherein: The lower part of the outer side of the hydraulic jacking rod (1) is provided with a sleeve hoop (15), and the two sides of the sleeve hoop (15) are provided with hinged boxes (16), the inside of the hinged box (16) is rotationally provided with a supporting leg (17), the lower part of the outer side of the hydraulic jacking rod (1) is provided with a friction groove (18), and the friction groove (18) is provided with a friction tooth, the sleeve hoop (15) is provided with a knob bolt (19) screwed, and the inner end of the knob bolt (19) is matched with the friction tooth.
7. The temporary support quick-release device for long-span composite floor slabs of claim 1, wherein: The output rod of the hydraulic jacking rod (1) is provided with a scale line (20), and the scale line (20) is used for indicating the lifting height of the hydraulic jacking rod (1). The output rod of the hydraulic jacking rod (1) is provided with a scale line (20), and the scale line (20) is used for indicating the lifting height of the hydraulic jacking rod (1).