Commercial concrete pouring supporting formwork

Abstract

The utility model relates to a commercial concrete pouring supporting formwork, which belongs to the technical field of building auxiliary equipment, is provided for solving the problems of single function and the like of the traditional supporting formwork, and comprises a placing underframe, a supporting mechanism is hinged to the placing underframe, and a supporting rod is arranged on one side, adjacent to the placing underframe, of the supporting mechanism. One end of the supporting rod is movably connected with the supporting mechanism in a hinged mode, the supporting mechanism comprises a supporting vertical plate and a supporting top plate, an opening is formed in the top of the supporting vertical plate and extends towards the interior of the supporting vertical plate to form a cavity for containing the supporting top plate, and the supporting top plate is arranged in the cavity of the supporting vertical plate in a pull-out mode. The end, away from the opening, of the supporting top plate is hinged to a driving shaft, and the driving shaft is unfolded in the working state through long grooves in the two sides of the supporting vertical plate and the opening in the top of the supporting vertical plate. The supporting rod is adjusted through the adjusting structure, the inclination angle of the supporting structure can be changed through the supporting rod, and therefore the application range of the supporting structure is wider.

Description

Technical Field

[0001] This utility model relates to the field of building-related technology, specifically to a support formwork for commercial concrete pouring. Background Technology

[0002] In the field of construction engineering, the support system for suspended formwork (such as cantilevered floor slabs, bridge flanges, and irregularly shaped roofs) has always been a construction challenge during the pouring of commercial concrete. Traditional support solutions mainly rely on coupler-type scaffolding or custom-made steel supports, which have the following technical defects.

[0003] 1. Low installation efficiency and long construction period

[0004] Existing scaffolding requires on-site assembly of individual members, couplers, and braces, with each workstation taking 2-4 hours to install (such as cantilevered sections of high-rise slabs), and repeated adjustments to levelness and stability are necessary. For irregular structures such as bridge flanges, additional welding of non-standard connectors is often required, leading to material waste and a surge in labor costs.

[0005] 2. Insufficient stability under heavy load

[0006] Traditional scaffolding fasteners are prone to slippage under vibration loads, and the bearing capacity of a single support is usually less than 1.5 tons, which is insufficient to meet the instantaneous load of 3-5 tons / ㎡ during commercial concrete pouring (such as the construction of large-span beams and slabs). Statistics from the 2024 "Technical Specification for Safety of Formwork in Building Construction" show that 63% of formwork collapse accidents are caused by the failure of support nodes.

[0007] 3. Poor angle adaptability

[0008] Existing support systems are mostly fixed angle (such as 90° vertical support). For cantilevered formwork such as 45° and 60° (such as stepped garage roof slabs and curved canopies), special diagonal braces or auxiliary counterweights need to be customized, which not only delays the construction period but also reduces the turnover rate of components by more than 40%. Utility Model Content

[0009] A commercial concrete pouring support template includes a base frame for fixing on the ground. The base frame is hingedly connected to a support mechanism. The support mechanism, adjacent to the base frame, is provided with a support rod forming a triangular structure. One end of the support rod is hingedly connected to the support mechanism. The support mechanism includes a support upright and a support top plate. The top of the support upright has an opening extending into the support upright to form a cavity for accommodating the support top plate. The support top plate can be pulled out into the cavity of the support upright. A drive shaft is hingedly connected to the end of the support top plate away from the opening. The drive shaft is deployed in the working state through long slots on both sides of the support upright and the opening at the top of the support upright.

[0010] Furthermore, the base frame is provided with connecting ears on both sides for fixing.

[0011] Furthermore, the support plate has a mounting groove for embedding the support rod on the side near the base frame.

[0012] Furthermore, the placement frame is also provided with an adjustment mechanism for adjusting and locking the support rod. The adjustment mechanism includes an optical shaft with a threaded block. The threaded block is threaded onto the threaded part of the adjustment rod. The adjustment rod also covers the optical shaft. The free end of the threaded part is rotatably inserted into and fixed to the mounting base of the placement frame. The free end of the optical shaft extends outward from the placement frame, and its free end is provided with a drive part for driving the adjustment rod to rotate.

[0013] Furthermore, the driving part of the adjusting rod is a gear.

[0014] Furthermore, an operating lever is eccentrically mounted on the gear.

[0015] Furthermore, there are two supporting top plates.

[0016] Furthermore, there are more than one support rod, and they are arranged in an array.

[0017] Furthermore, the number of threaded blocks is two or more, and the number of adjusting rods corresponds one-to-one with the number of threaded blocks.

[0018] Furthermore, when there are three or more adjusting rods, the gear located in the middle is selected as a gear with double tooth thickness, and two adjacent processing rods 22 are synchronously rotated by a toothed belt.

[0019] The beneficial effects of this utility model are:

[0020] The support rod of this device can rotate on the support mechanism and the adjustment structure. The support rod can be adjusted through the adjustment structure, and the tilt angle of the support mechanism can be changed by using the support rod, thereby making the support mechanism more widely applicable.

[0021] The device features a long groove along a supporting vertical plate, which connects to an opening on the plate. When the drive shaft is pushed, it slides within the groove, simultaneously pushing the top support plate out of the opening. Once fully exposed, the two top support plates rotate 90 degrees, aligning them at 180 degrees, thus achieving the desired effect for the canopy roof.

[0022] To solve the aforementioned technical problems, this utility model provides a commercial concrete pouring support template.

[0023] The technical solution adopted by this utility model is a commercial concrete pouring support template, which includes a placement base frame for fixing on the ground. The placement base frame is provided with an opening, and a support mechanism is installed at the opening via a shaft. The support mechanism is equipped with an adjustment structure via a support rod. The support mechanism includes a support plate, and the top of the support plate is provided with an opening, in which a support top plate is installed.

[0024] Furthermore, a drive shaft is installed at one end of the support top plate located inside the opening, and a long groove is provided on the support upright plate to limit the movement trajectory of the drive shaft.

[0025] Furthermore, the support plate has a mounting groove for mounting the support rod on the side near the base frame.

[0026] Furthermore, the adjustment structure includes an adjustment rod for controlling the support rod, one end of which is mounted on a mounting base, and a drive structure for adjusting the support rod is mounted on the adjustment rod.

[0027] Furthermore, the driving structure includes a rod body, on which a plurality of threaded blocks are provided for mounting on the adjusting rod.

[0028] Furthermore, a limit block is provided on the adjusting rod.

[0029] Furthermore, a gear is mounted on the adjusting rod, and a toothed belt is fitted onto the gear. An operating lever is eccentrically mounted on one of the gears.

[0030] Furthermore, the two sides of the drive structure are equipped with stops to prevent the support rod from falling off.

[0031] The beneficial effects of this utility model are:

[0032] The support rod of this device can rotate on the support mechanism and the adjustment structure. The support rod can be adjusted through the adjustment structure, and the tilt angle of the support mechanism can be changed by using the support rod, thereby making the support mechanism more widely applicable.

[0033] The device features a long groove along the support plate, which connects to an opening on the support plate. When the drive shaft is pushed, it slides within the long groove while simultaneously pushing the support plate out of the opening. Once the support plate is fully exposed outside the opening, the two support plates rotate 90 degrees, aligning them at 180 degrees, thus providing support for the ceiling. The wall thickness of the support plate outside the opening is significantly greater than the diameter of the drive shaft, allowing a portion of the bottom surface of the support plate to rest on the top surface of the outer wall of the opening when the support plate is horizontal. This provides support and prevents the support plate from flipping downwards. When the support plate supports the ceiling, it is compressed by the ceiling and the support plate itself during the support process, thus fixing the support plate in a horizontal position and preventing it from flipping during the support process.

[0034] The device's drive structure consists of alternating rods and threaded blocks. The threaded blocks generate displacement along the direction of the adjusting rod during its rotation, which in turn drives the support rod to move, thereby achieving angle adjustment of the support plate.

[0035] When the supporting top plate is in a horizontal state, part of the bottom surface of the supporting top plate rests on the top surface of the outer wall of the opening of the supporting vertical plate, thereby achieving the function of supporting the supporting top plate and preventing the supporting top plate from flipping downward. When the supporting top plate supports the ceiling, since the supporting top plate supports a plane, the supporting top plate is squeezed by the ceiling and by the supporting vertical plate and the ceiling during the support process, thus fixing the supporting top plate in a horizontal state and preventing the supporting top plate from flipping during the support process.

[0036] The device's drive structure consists of alternating rods and threaded blocks. The threaded blocks generate displacement along the direction of the adjusting rod during its rotation, which in turn drives the support rod to move, thereby achieving angle adjustment of the support plate. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of the commercial concrete pouring support template described in this utility model;

[0038] Figure 2 This is a three-dimensional structural diagram of the adjustable structure of the commercial concrete pouring support template described in this utility model;

[0039] Figure 3This is a three-dimensional structural diagram of the support top plate of the support mechanism of the commercial concrete pouring support formwork described in this utility model in the retracted state.

[0040] Figure 4 This is a three-dimensional structural diagram of the support top plate of the support mechanism of the commercial concrete pouring support formwork described in this utility model, in its unfolded state.

[0041] Figure 5 This is a three-dimensional structural diagram of the drive shaft of a commercial concrete pouring support formwork as described in this utility model;

[0042] Figure 6 This is a schematic diagram of the support rod structure of this application;

[0043] Figure 7 This is a cross-sectional view of the overall structure of this application;

[0044] In the diagram: 1. Base frame; 2. Adjustment structure; 21. Operating lever; 22. Gear; 23. Gear belt; 24. Adjusting rod; 25. Limiting block; 26. Mounting seat; 27. Threaded block; 28. Rod body; 29. ​​Stop block; 3. Support rod; 4. Support mechanism; 41. Support plate; 42. Mounting groove; 43. Support top plate; 44. Long groove; 45. Drive shaft. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0046] This embodiment discloses a support formwork for commercial concrete pouring, such as... Figure 1 As shown, the entire structure consists of a hinged base frame 1 and a support mechanism 4. The junction between the base frame 1 and the support mechanism 4 is connected using a pin-type hinge, as shown... Figure 1 and 3 As shown, the support mechanism 4 has shafts or circular pins on both sides, which are inserted into the through holes set at the corresponding positions on both sides of the base frame 1 to connect the two together in a relatively movable manner.

[0047] like Figure 1 As shown, the base frame 1 is provided with connecting ears on both sides. The connecting ears can be fixed to the ground by bolts (preferably expansion bolt sets) to achieve the fixation of the base frame 1.

[0048] like Figure 1As shown, the support mechanism 4, adjacent to the base frame 1, is further provided with a support rod 3 that forms a triangular structure for the commercial concrete pouring support template described in this application. The support rod 3, adjacent to the support mechanism 4, has a hinge hole and can be embedded into a mounting groove 42 provided on the support mechanism 4. The mounting groove 42, away from the base frame 1, has a hinge portion that mates with the hinge hole of the support rod 3. Preferably, this hinge portion uses a pin-type hinge. In this embodiment, the end of the support rod 3 adjacent to the base frame 1 supports the support mechanism 4 through the overturning moment of the support mechanism 4 and the frictional force of the contact surface between the support rod 3 and the base frame 1. Further, multiple support rods 3 and mounting grooves 42 are arranged in an array.

[0049] Such as 3 and Figure 4 As shown, the support mechanism 4 consists of a support plate 41 and a support top plate (43). The top of the support plate 41 has an opening that extends into the support plate to form a cavity for accommodating the support top plate 43. The support top plate 43 is provided in the cavity. The support top plate 43 is made of ribbed steel plate with a galvanized surface and an adhesion strength of not less than 235MPa (preferably made of Q235 steel plate). There are two support top plates 43. In the non-use state, the support top plate 43 is located in the cavity of the support plate 41. The support top plate 43 can be pulled out to support the suspended formwork to be poured. A top support plate 43 is hinged to a drive shaft 45 at its end furthest from the opening. The top support plate 43 and the drive shaft 45 can rotate relative to each other. A long groove 44 is provided on the support plate 41 to restrict the movement trajectory of the drive shaft 45. A limit block is provided outside the long groove 44 on the drive shaft 45 to prevent it from falling off. The long groove 44 runs along the support plate 41 and communicates with a chamber on the support plate 41. When the drive shaft 45 is pushed, it slides within the long groove 44 while simultaneously pushing the top support plate 43 out of the opening of the support plate 41. Figure 4As shown, when the supporting top plate 43 is fully extended from the chamber, it can be unfolded to 180° under the joint constraint of the long groove 44, the driving shaft 45, and the top surface of the opening of the supporting vertical plate. Its bottom surface is supported by the top surface of the opening of the supporting vertical plate 41. The hinged driving shaft 45 is constrained by the long groove 44 and tightens the junction of the supporting top plate 43 and the driving shaft 45, completing the unfolding in the working state and preventing the supporting top plate from flipping downwards. This achieves the support for the cantilevered concrete pouring formwork. The wall thickness of the supporting vertical plate 41 outside the opening is greater than the diameter of the driving shaft 45. Therefore, when the supporting top plate 43 is in a horizontal state, a part of the bottom surface of the supporting top plate 43 rests on the top surface of the outer wall of the opening of the supporting vertical plate 41. When the supporting top plate 43 supports the ceiling, since the supporting top plate 43 supports a plane, the supporting top plate 43 is squeezed by the ceiling and by the supporting vertical plate 41 and the ceiling during the support process. This achieves the fixation of the supporting top plate 43 in a horizontal state and prevents the supporting top plate 43 from flipping during the support process. Example 2

[0050] In order to enable the support mechanism 4 to support the cantilevered formwork to be poured at non-special angles (such as 180 degrees), this embodiment also provides an adjustment mechanism 2 in the placement base frame 1, which changes the angle between the placement base frame 1 and the support mechanism 4 by adjusting and locking the support rod 3.

[0051] The adjustment mechanism 2 uses a worm gear principle to achieve adjustment and locking functions. For example... Figure 2 As shown, the adjustment mechanism includes a rod 28 composed of a set of coaxially arranged multiple optical axes. Two adjacent optical axes are connected as one unit by threaded blocks 27. Stops 29 are provided at both ends of the rod. Preferably, there are two or more threaded blocks 27. Figure 6 and 7 As shown, the end of the support rod 3 adjacent to the base frame 1 is provided with a through hole for hinged coupling of the optical axis of the rod body 28, and is hinged to the rod body 28, and is limited to the rod body 28 by the stop block 29.

[0052] The rod 28 is threadedly connected to the adjusting rod 24 via threaded blocks 27. The number of adjusting rods 24 corresponds one-to-one with the number of threaded blocks, and preferably they are arranged in an array with the same spacing as the threaded blocks. Figure 1 and 2As shown, the adjusting rod 24 consists of a shaft portion and a threaded portion of a threaded block 27. A cylindrical limiting block 25 is provided at the junction of the shaft portion and the thread. The free end of the threaded portion is rotatably inserted into a mounting base 26. The mounting base is fixedly mounted on the placement base 1. The free end of the shaft portion extends outward from the placement base 1, and its free end is provided with a driving part for driving the adjusting rod 24 to rotate. Preferably, the driving part uses a toothed pulley, hereinafter referred to as gear 22. Two adjacent processing units 22 are synchronized in angular displacement (i.e., synchronized rotation) by a single annular internal toothed belt (hereinafter referred to as toothed belt 23). Further as... Figure 2 As shown, when there are three or more adjusting levers, any gear 22 located in the middle is selected as a gear with double tooth thickness or a double-groove toothed pulley to achieve step-by-step torque transmission. Furthermore, an operating lever 21 is eccentrically mounted on any one of the gears 22.

[0053] The above embodiments further illustrate the various operating conditions of the technical solution of this application.

[0054] Standard operating condition: Horizontal roof support (Example 1)

[0055] On-site fixing: The base frame 1 is anchored to the ground using expansion bolts connected to the two sides to form a stable base.

[0056] Expand the support mechanism: Flip the support mechanism 4 upwards, and form a triangular structure with the base frame 1 and the support rod 3 through the pin-type hinge. The friction between the bottom surface of the support rod 3 and the base frame 1 plus the overturning moment of the support mechanism 4 fixes the above triangular structure.

[0057] Top plate support (and horizontal cantilever formwork support): The horizontally pull-out support plate 41 supports the top plate 43 (ribbed galvanized steel plate) in the cavity. The drive shaft 45 slides along the long groove 44 until the top plate is fully extended and unfolded to 180°. At this time, the bottom surface of the top plate is supported by the top surface of the opening of the vertical plate, the drive shaft 45 is limited by the long groove to form a self-locking mechanism, and the top plate is horizontally locked after being squeezed by the roof, bearing the load of the commercial concrete pouring formwork.

[0058] Multi-point coordination: Two or more array-type support rods 3 cooperate with multiple support top plates 43 to form a planar support system, which can meet the needs of large-area formwork suspended pouring.

[0059] Special working condition: Multi-angle cantilever support (Example 2)

[0060] Angle pre-adjustment: By driving any gear 22 through the operating lever 21, the adjusting rod 24 (worm gear principle) is rotated synchronously, causing the threaded block 27 to move axially along the rod body 28, steplessly adjusting the angle between the base frame 1 and the support mechanism 4 (non-180° scenarios). For example: for a 45° cantilever template, the rod body 28 is retracted to the preset length, and multiple sets of adjusting rods are locked synchronously using the toothed belt 23 to ensure the rigidity of the support structure.

[0061] Dynamic support: After adjustment, the support rod 3 is hinged to the optical axis of the rod body 28, and adaptively conforms to the ground as the angle changes, forming a stable triangular fulcrum. The supporting top plate 43 still supports the cantilevered template through a pull-out self-locking mechanism, and the long groove 44 constrains the drive shaft 45 to prevent the top plate from flipping in the tilted state.

[0062] Adaptable to complex scenarios: The double tooth thickness design of the intermediate gear 22 enables long-span torque transmission, making it suitable for large support systems with more than 3 sets of adjustment rods, and meeting the needs of complex working conditions such as irregular structures and stepped ceilings.

[0063] Disassembly and turnover

[0064] Horizontal position: Loosen the top support plate 43, push it back into the chamber along the long groove 44 to release the self-locking; fold the support mechanism 4 above the base frame 1 and fix it with a pin for easy handling.

[0065] Angle adjustment structure: Rotate the operating lever 21 in the opposite direction, and the lever body 28 will retract to its shortest state, the support rod 3 will be lifted off the ground, and the whole unit will form a compact transportation unit.

[0066] Core advantages are reflected in specific scenarios.

[0067] Rapid response: It only takes 5-20 minutes per workstation from ground fixing to top plate deployment, which has a significant efficiency advantage over the traditional combination of scaffolding pipes and restraints.

[0068] Heavy load stability: The supporting top plate is self-locking + triangular structure, and a single unit can bear a 3-ton commercial concrete load, which is suitable for suspended pouring of high-rise floor slabs, bridge flanges and other structures.

[0069] Flexible adaptation: The angle adjustment mechanism covers all support requirements except for horizontal support, eliminating the need for customized non-standard parts and greatly reducing construction costs.

Claims

1. A commercial concrete pouring support template, comprising a base frame (1) for fixing on the ground, the base frame (1) being hingedly connected to a support mechanism (4), the support mechanism (4) having a support rod (3) on the side adjacent to the base frame (1) forming a triangular structure, one end of the support rod (3) being hingedly connected to the support mechanism (4), characterized in that... The support mechanism (4) includes a support plate (41) and a support top plate (43). The support plate (41) has an opening at the top, which extends into the support plate (41) to form a cavity for accommodating the support top plate (43). The support top plate can be pulled out and placed in the cavity of the support plate. The end of the support top plate away from the opening is connected to a drive shaft (45) in a hinged manner. The drive shaft (45) is deployed in the working state through the long grooves (44) on both sides of the support plate (41) and the opening at the top of the support plate (41).

2. The commercial concrete casting support formwork according to claim 1, characterized in that: The base frame (1) is provided with connecting ears on both sides for fixing.

3. The commercial concrete casting support formwork according to claim 1, characterized in that: The support plate (41) has a mounting groove (42) for embedding the support rod (3) on the side near the base frame (1).

4. The commercial concrete casting support formwork according to claim 1, characterized in that: The placement base (1) is also provided with an adjustment mechanism (2) for adjusting and locking the support rod (3). The adjustment mechanism (2) includes an optical shaft with a threaded block. The threaded block is sleeved on the threaded part of the adjustment rod (24) by a threaded connection. The adjustment rod (24) also includes an optical shaft. The free end of the threaded part is rotatably inserted and fixed to the mounting seat (26) of the placement base. The free end of the optical shaft extends outward from the placement base (1), and its free end is provided with a drive part for driving the adjustment rod (24) to rotate.

5. A commercial concrete casting support formwork according to claim 4, characterized in that: The driving part of the adjusting rod (24) is a gear (22).

6. A commercial concrete casting support formwork according to claim 5, characterized in that: An operating lever (21) is eccentrically mounted on the gear (22).

7. A commercial concrete casting support formwork according to any one of claims 1-6, characterized in that: There are two supporting top plates (43).

8. A commercial concrete casting support formwork according to any one of claims 1-6, characterized in that: The support rod (3) is one or more, and is arranged in an array.

9. A commercial concrete casting support formwork according to any one of claims 4-6, characterized in that: The number of threaded blocks (27) is more than two, and the number of adjusting rods (24) corresponds one-to-one with the number of threaded blocks (27).

10. A commercial concrete casting support formwork according to claim 9, characterized in that: When there are 3 or more adjusting rods, the gear (22) located in the middle is selected with double tooth thickness, and the two adjacent processing rods 22 are synchronously rotated by a toothed belt (23).

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