An assembled building laminated slab independent support frame

Abstract

The utility model discloses an assembled building is with the superimposed board independent support frame relates to the technical field of assembled building construction support equipment, the utility model discloses a base is passed through the screw rod and is connected on the surface of base, the top of screw rod is connected with the threaded tube with screw thread, the top of threaded tube is provided with adjustable support subassembly, adjustable support subassembly includes the top plate, and the bottom of top plate is fixedly connected with the top of threaded tube. The utility model discloses the linkage design of connecting rod type of adjusting plate, side plate, support frame and the connecting rod of adjusting seat in adjustable support subassembly, and the operator can adjust the length of extension of the extension part of both sides of top plate according to the actual span and load condition of on -the -spot superimposed board, thereby the support contact area is changed flexibly, and this characteristic directly solves the defect of the fixed support area of superimposed board support frame in the prior art, and the contact stress of the bottom of superimposed board can be reduced effectively by increasing the support area, and the risk of indentation or cracking is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of prefabricated building construction support equipment, and in particular relates to an independent support frame for composite slabs in prefabricated buildings. Background Technology

[0002] In the construction of prefabricated buildings, composite slabs, as core load-bearing components, directly determine the construction quality and safety of the building structure through their support stability during installation. Independent support frames for composite slabs are key equipment specifically designed for temporary support after the composite slabs are hoisted into place. Their main function is to bear the self-weight of the composite slab, construction loads, and additional loads from subsequent concrete pouring, until the composite slab and the main structure form a stable load-bearing body.

[0003] Chinese patent application CN211201255U discloses a support frame for prefabricated building composite slabs, including a first support mechanism, an adjustment mechanism, and a second support mechanism. The first support mechanism supports the composite slab, and the second support mechanism supports both the first support mechanism and the adjustment mechanism. The adjustment mechanism includes a screw, a first adjustment part, a second adjustment part, and a hollow adjustment seat. The first adjustment part is used for large-scale adjustment of the screw, and the second adjustment part is used for fine-tuning the screw. This invention solves the problems of inconvenience and increased workload for operators caused by the need to assemble the support frame and housing before adjustment in existing technologies.

[0004] While the patented design offers convenient adjustment, it still suffers from the drawback of having an unadjustable support area. Furthermore, existing composite slab independent support frames exhibit significant structural defects: the top support bases are mostly fixed-size flat or point-support structures, whose support area cannot be flexibly adjusted according to the size, weight distribution, and construction load variations of the composite slab. In actual construction, when the composite slab has a large span, heavy self-weight, or concentrated local loads, the fixed-area support bases can lead to excessive contact stress. This not only easily causes damage such as indentations and cracks on the bottom surface of the composite slab but also significantly reduces the stability of the support system due to limited contact points and insufficient bearing area, increasing the safety risks of composite slab displacement and overturning.

[0005] To address these issues, we provide an independent support frame for prefabricated slabs in prefabricated buildings. Utility Model Content

[0006] The purpose of this utility model is to provide an independent support frame for prefabricated slabs. By combining adjustable support components and a screw-threaded pipe lifting mechanism, it solves the problems of fixed and unadjustable support area, which easily leads to local stress concentration and insufficient support stability of existing independent support frames for slabs.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to an independent support frame for prefabricated slabs in prefabricated buildings, comprising a base, a screw rod extending through the surface of the base, a threaded tube threaded to the top of the screw rod, an adjustable support assembly at the top of the threaded tube, the adjustable support assembly including a top plate, the bottom of the top plate being fixedly connected to the top of the threaded tube, adjustment grooves on both sides of the top plate, an adjustment plate movably connected to the inner cavity of the adjustment groove, a side plate fixedly connected to one side of the adjustment plate, a support frame movably connected to the bottom of the side plate, an adjustment seat movably connected to the surface of the threaded tube, fixed seats fixedly connected to both sides of the adjustment seat, the bottom of the support frame movably connected to the inner cavity of the fixed seat, insertion holes on the surfaces of the adjustment seat and the threaded tube, and pins movably connected to the inner cavities of the insertion holes.

[0009] The present invention is further configured such that each of the four corners of the base is fixedly connected to a support leg, and the bottom of the support leg is fixedly connected to an anti-slip plate. The support leg optimizes the support point of the base from surface contact to four distinct point contacts, and contacts the construction ground through the anti-slip plate. The four corner support leg structure forms a stable support plane, effectively preventing the support frame from overturning or shaking when subjected to eccentric loads or lateral forces.

[0010] The present invention is further configured such that a rotating wheel is fixedly connected to the bottom of the screw, and a through groove is provided on one side of the surface of the base. The operator can manually rotate the rotating wheel to drive the screw to rotate. Since the screw is threadedly connected to the threaded pipe above, the screw can drive the threaded pipe to move linearly up and down. The operator can reach his hand through the through groove to the bottom of the base to easily rotate the rotating wheel.

[0011] The present invention is further configured such that a movable roller is provided on one side of the bottom of the adjusting plate, the bottom of the movable roller contacts the bottom of the inner cavity of the adjusting groove, and the movable roller at the bottom of the adjusting plate rolls on the bottom surface of the adjusting groove, changing sliding friction into rolling friction, which greatly reduces the friction force when the adjusting plate moves, making the operation of adjusting the support area easy and smooth.

[0012] The present invention is further configured such that a limiting frame is fixedly connected to one side of the bottom of the inner cavity of the adjusting groove, and the surface of the adjusting plate is movably connected to the inner cavity of the limiting frame. The limiting frame is a guide frame fixed in the adjusting groove. When the adjusting plate moves, part of its structure is embedded in the inner cavity of the limiting frame and moves along the direction defined by the limiting frame, ensuring that the adjusting plate can only move in a straight line during horizontal movement, and preventing it from deflecting or tilting.

[0013] The present invention is further configured such that a support pad is fixedly connected to the top of the side plate, and the bottom of the support pad contacts the top of the top plate. When the adjustment plate is fully retracted, the support pad at the top of the side plate will press against the top surface of the top plate. When the support area is adjusted to the minimum, the support pad and the top plate together form a support surface, dispersing the pressure and preventing the pressure from being completely concentrated on the hinge or connection part of the adjustment plate, thus protecting the moving parts.

[0014] The present invention is further configured such that limit rods are fixedly connected to both sides of the top of the base, and sleeve frames are fixedly connected to both sides of the threaded tube. The inner cavity of the sleeve frame is movably connected to the surface of the limit rod. Two vertical limit rods are fixed on the base, and the sleeve frames on both sides of the threaded tube are respectively fitted onto the two limit rods. When the screw is driven to rotate by the rotating wheel, the threaded tube cannot rotate because it is constrained by the limit rod, and can only make a strict vertical up and down movement along the limit rod. This is the key constraint condition for realizing the linear lifting and lowering of the threaded tube driven by the rotation of the screw, and ensures the effective operation of the height adjustment mechanism.

[0015] The present invention is further configured such that a limiting groove is formed at the top of the inner cavity of the adjusting groove, and a limiting strip is fixedly connected to one side of the top of the adjusting plate. The surface of the limiting strip is movably connected to the inner cavity of the limiting groove. The limiting strip at the top of the adjusting plate is embedded in the limiting groove at the top of the adjusting groove, forming a "guide rail and slider" cooperation. This cooperates with the limiting frame to constrain the movement path of the adjusting plate from both the top and bottom directions, ensuring that its movement trajectory is straight.

[0016] The present invention has the following beneficial effects.

[0017] 1. This utility model uses a linkage design of the adjusting plate, side plate, support frame and adjusting seat in the adjustable support assembly. The operator can adjust the extension length of the extension part on both sides of the top plate according to the actual span and load of the composite plate on site, thereby flexibly changing the support contact area. This feature directly solves the defects caused by the fixed support area of ​​the composite plate support frame in the prior art. Increasing the support area can effectively reduce the contact compressive stress at the bottom of the composite plate and avoid the risk of indentation or cracking.

[0018] 2. This utility model organically integrates the vertical height adjustment mechanism and the horizontal area adjustment mechanism into one unit. In terms of height adjustment, the screw and threaded tube transmission pair are strictly constrained by the limiting rod, ensuring a smooth adjustment process and guaranteeing the accuracy of the support elevation. In terms of stability, the four-point support structure of the base provides an anti-overturning foundation. After the area adjustment mechanism is unfolded, its adjustment plate is guided by the double linear guide of the limiting frame and the limiting groove, ensuring the rigid support of the extended part and eliminating the risk of shaking. Finally, the mechanical locking of the adjustment seat by the pin ensures that the entire support form can form a solid and rigid whole at any required height and area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a three-dimensional view of an independent support frame for prefabricated slabs used in prefabricated buildings.

[0021] Figure 2 This is a bottom view schematic diagram of an independent support frame for composite slabs used in prefabricated buildings.

[0022] Figure 3 This is a cross-sectional schematic diagram of an independent support frame for prefabricated building composite panels.

[0023] Figure 4 This is a cross-sectional schematic diagram of the top plate in an independent support frame for prefabricated slabs used in prefabricated buildings.

[0024] Figure 5 This is a schematic diagram of the structure of an adjustable plate in an independent support frame for prefabricated slabs used in prefabricated buildings. In the attached diagram: 1. Base; 2. Screw; 3. Threaded pipe; 4. Adjustable support assembly; 401. Top plate; 402. Adjustment groove; 403. Adjustment plate; 404. Side plate; 405. Support frame; 406. Adjustment seat; 407. Fixed seat; 408. Insertion hole; 409. Pin; 5. Support leg; 6. Rotary wheel; 7. Movable roller; 8. Limiting frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1-5 This utility model is an independent support frame for prefabricated building composite panels, including a base 1. A screw 2 is connected through the surface of the base 1. A threaded tube 3 is threadedly connected to the top of the screw 2. An adjustable support assembly 4 is provided on the top of the threaded tube 3. The adjustable support assembly 4 includes a top plate 401. The bottom of the top plate 401 is fixedly connected to the top of the threaded tube 3. Adjustment grooves 402 are provided on both sides of the top plate 401. An adjustment plate 403 is movably connected to the inner cavity of the adjustment groove 402. A side plate 404 is fixedly connected to one side of the adjustment plate 403. A support frame 405 is movably connected to the bottom of the side plate 404. An adjustment seat 406 is movably connected to the surface of the threaded tube 3. Fixed seats 407 are fixedly connected to both sides of the adjustment seat 406. The bottom of the support frame 405 is movably connected to the inner cavity of the fixed seat 407. Insertion holes 408 are provided on the surfaces of the adjustment seat 406 and the threaded tube 3. Pins 409 are movably connected to the inner cavity of the insertion holes 408.

[0027] Specifically: Base 1 serves as the foundation of the entire support frame 405. The screw 2 passing through its center is connected to the threaded tube 3 via a thread, forming the basic height adjustment mechanism. The operator drives the screw 2 to rotate by rotating the wheel 6 at the bottom of the screw 2. Since the threaded tube 3 is slidably connected to the vertical limiting rod on the base 1 through the sleeve frame on both sides, its rotational freedom is constrained. Therefore, the rotational motion of the screw 2 is converted into the vertical lifting and lowering motion of the threaded tube 3 strictly along the limiting rod, thereby achieving precise and stable adjustment of the overall height of the top of the support frame 405.

[0028] The adjustable support assembly 4 at the top of the support frame 405 is key to realizing its core advantages. The top plate 401 at the top of the threaded tube 3 serves as the central load-bearing area, with adjusting plates 403 movably connected to the adjusting grooves 402 on both sides. The adjusting plates 403 are fixedly connected to the side plates 404, while the bottom of the side plates 404 is movably connected to an adjusting seat 406 that can slide up and down along the threaded tube 3 via the support frame 405. When it is necessary to increase the support area to accommodate large or heavy-duty composite plates, the operator can push the adjusting seat 406 upwards along the threaded tube 3, causing the support frame 405 to unfold and push the adjusting plates 403 and side plates 404 to extend horizontally from both sides of the top plate 401, thereby significantly expanding the top support contact surface. After adjustment, the adjusting seat 406 can be securely locked by simultaneously inserting the pins 409 into the corresponding insertion holes 408 of the adjusting seat 406 and the threaded tube 3, maintaining the rigidity of the entire extended support structure.

[0029] Support legs 5 are fixedly connected to the four corners of the bottom of the base 1. Anti-slip discs are fixedly connected to the bottom of the support legs 5. A rotating wheel 6 is fixedly connected to the bottom of the screw 2. A through groove is opened on one side of the surface of the base 1. A movable roller 7 is provided on one side of the bottom of the adjusting plate 403. The bottom of the movable roller 7 contacts the bottom of the inner cavity of the adjusting groove 402. A limit frame 8 is fixedly connected to one side of the bottom of the inner cavity of the adjusting groove 402. The surface of the adjusting plate 403 is movably connected to the inner cavity of the limit frame 8. A support pad is fixedly connected to the top of the side plate 404. The bottom of the support pad contacts the top of the top plate 401. Limit rods are fixedly connected to both sides of the top of the base 1. Sleeves are fixedly connected to both sides of the threaded tube 3. The inner cavity of the sleeve is movably connected to the surface of the limit rod. A limit groove is opened on the top of the inner cavity of the adjusting groove 402. A limit strip is fixedly connected to one side of the top of the adjusting plate 403. The surface of the limit strip is movably connected to the inner cavity of the limit groove.

[0030] Specifically: the support legs 5 optimize the support points of the base 1 from surface contact to four distinct point contacts, and contact the construction ground through anti-slip discs. The four corner support legs 5 form a stable support plane, effectively preventing the support frame 405 from overturning or swaying when subjected to eccentric loads or lateral forces. The operator manually rotates the wheel 6 to drive the screw 2 to rotate. Since the screw 2 is threadedly connected to the threaded pipe 3 above, the screw 2 can drive the threaded pipe 3 to move linearly up and down. The operator can reach their hand through the through slot to the bottom of the base 1 to easily rotate the wheel 6. The movable roller 7 at the bottom of the adjusting plate 403 rolls on the bottom surface of the adjusting groove 402, changing sliding friction into rolling friction, greatly reducing the friction force when the adjusting plate 403 moves, making the operation of adjusting the support area easy and smooth. The limiting frame 8 is a guide frame fixed in the adjusting groove 402. When the adjusting plate 403 moves, part of its structure is embedded in the inner cavity of the limiting frame 8 and moves in the direction defined by the limiting frame 8, ensuring that the adjusting plate 403 moves horizontally. During operation, it can only move in a straight line to prevent deflection or tilting. When the adjusting plate 403 is fully retracted, the support pad on the top of the side plate 404 will press against the top surface of the top plate 401. When the support area is adjusted to the minimum, the support pad and the top plate 401 together form a support surface, dispersing the pressure and preventing the pressure from being completely concentrated on the hinge or connection part of the adjusting plate 403, thus protecting the moving parts. Two vertical limit rods are fixed on the base 1, and the sleeves on both sides of the threaded tube 3 are respectively fitted onto the two limit rods. When driven by the rotating wheel 6 When the screw 2 rotates, the threaded tube 3 cannot rotate due to the constraint of the limiting rod. It can only move vertically up and down along the limiting rod. This is the key constraint condition for realizing the linear lifting and lowering of the threaded tube 3 driven by the rotation of the screw 2, which ensures the effective operation of the height adjustment mechanism. The limiting strip at the top of the adjusting plate 403 is embedded in the limiting groove at the top of the adjusting groove 402, forming a "guide rail and slider" cooperation. It cooperates with the limiting frame 8 to constrain the movement path of the adjusting plate 403 from both the top and bottom directions, ensuring that its movement trajectory is straight.

[0031] The working principle of this utility model is as follows: the support frame 405 is placed at the predetermined support point under the composite plate to ensure that the anti-slip discs at the four corners of the base 1 are in stable contact with the ground. The operator inserts their hand through the through-slot on the side of the base 1, rotates the rotating wheel 6, drives the screw 2 to rotate, and causes the threaded tube 3 to lift the adjustable support assembly 4 at the top until the top plate 401 is close to the bottom surface of the composite plate. The rotating wheel 6 is then rotated to ensure that the top plate 401, the extended adjusting plate 403, and the side plate 404 smoothly contact the bottom surface of the composite plate, and an appropriate pre-jacking force is applied to ensure stable support. According to the size of the composite plate and the load distribution, the adjusting seat 406 is pushed upward. The adjusting seat 406 pushes the adjusting plates 403 and the side plates 404 horizontally out through the support frame 405 until the support pad on the side plate 404 and the top plate 401 together form a support surface that meets the support requirements. The pin 409 is inserted into the insertion hole 408 of the adjusting seat 406 that is aligned with the threaded tube 3 to lock the position of the adjusting seat 406, thereby fixing the support area. Finally, the connection parts of the entire support frame 405 are checked to ensure that they are in a stable working state.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. An independent support frame for prefabricated slabs in prefabricated buildings, comprising a base (1), characterized in that: A screw (2) is connected through the surface of the base (1), and a threaded tube (3) is threaded to the top of the screw (2). An adjustable support assembly (4) is provided on the top of the threaded tube (3). The adjustable support assembly (4) includes a top plate (401), the bottom of which is fixedly connected to the top of the threaded tube (3). Adjustment grooves (402) are provided on both sides of the top plate (401). An adjustment plate (403) is movably connected to the inner cavity of the adjustment groove (402). A side plate (404) is fixedly connected to one side of the adjustment plate (403). A support frame (405) is movably connected to the bottom of the side plate (404). An adjustment seat (406) is movably connected to the surface of the threaded tube (3). Fixed seats (407) are fixedly connected to both sides of the adjustment seat (406). The bottom of the support frame (405) is movably connected to the inner cavity of the fixed seat (407). Insertion holes (408) are provided on the surfaces of the adjustment seat (406) and the threaded tube (3). A pin (409) is movably connected to the inner cavity of the insertion hole (408).

2. The prefabricated building composite slab independent support frame according to claim 1, characterized in that: The four corners of the bottom of the base (1) are fixedly connected with support legs (5), and the bottom of the support legs (5) is fixedly connected with anti-slip discs.

3. The prefabricated building composite slab independent support frame according to claim 1, characterized in that: The bottom of the screw (2) is fixedly connected to a rotating wheel (6), and a through groove is provided on one side of the surface of the base (1).

4. The prefabricated building composite slab independent support frame according to claim 1, characterized in that: A movable roller (7) is provided on one side of the bottom of the adjusting plate (403), and the bottom of the movable roller (7) is in contact with the bottom of the inner cavity of the adjusting groove (402).

5. The prefabricated building composite slab independent support frame according to claim 1, characterized in that: A limiting frame (8) is fixedly connected to one side of the bottom of the inner cavity of the adjusting groove (402), and the surface of the adjusting plate (403) is movably connected to the inner cavity of the limiting frame (8).

6. The prefabricated building composite slab independent support frame according to claim 1, characterized in that: A support pad is fixedly connected to the top of the side plate (404), and the bottom of the support pad is in contact with the top of the top plate (401).

7. The prefabricated building composite slab independent support frame according to claim 1, characterized in that: Limiting rods are fixedly connected to both sides of the top of the base (1), and sleeve frames are fixedly connected to both sides of the threaded tube (3). The inner cavity of the sleeve frame is movably connected to the surface of the limiting rod.

8. The prefabricated building composite slab independent support frame according to claim 1, characterized in that: A limiting groove is provided at the top of the inner cavity of the adjusting groove (402), and a limiting strip is fixedly connected to one side of the top of the adjusting plate (403), with the surface of the limiting strip being movably connected to the inner cavity of the limiting groove.

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