Wood formwork early-dismantling supporting device

Abstract

The utility model discloses a wood formwork early-dismantling supporting device, and particularly relates to the technical field of early-dismantling supporting devices, the wood formwork early-dismantling supporting device comprises an upper supporting body, a lower supporting body and a two-way threaded connecting column, the two-way threaded connecting column is provided with an upper threaded section and a lower threaded section, and the upper threaded section and the lower threaded section are opposite in screwing direction. The lower supporting body comprises a bottom plate and a columnar base body arranged on the bottom plate, four multi-stage clamping grooves with the extending directions perpendicular to one another are evenly distributed in the circumferential direction of the bottom plate, the upper supporting body comprises a columnar main body and a supporting plate arranged at the top of the columnar main body, and four telescopic supporting pieces are hinged to the side wall of the columnar main body; the device is provided with the two-way threaded connecting column and the multi-stage clamping groove adjustable supporting piece, and the two-way threaded connecting column can synchronously adjust the height of the upper supporting body and the height of the lower supporting body only by rotating a single component; after the telescopic supporting pieces are inserted into the multi-stage clamping grooves, a distributed force bearing structure is formed, loads are evenly dispersed to the bottom plate, and stress concentration at the threaded connection position is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of early dismantling support devices, and more specifically, to an early dismantling support device for wooden formwork. Background Technology

[0002] The early stripping formwork system reduces the span of large-span floor slabs by increasing support points through reasonable formwork support, thereby achieving the goal of "early formwork removal and later support column removal". The early stripped formwork is used for floor transfer or site transfer to shorten or advance the construction period, improve the labor productivity of building construction, and at the same time reduce the amount of formwork required and reduce construction costs.

[0003] The existing technology has the following shortcomings:

[0004] Low adjustment efficiency: Traditional threaded adjustment requires rotating the entire column or turning the nut multiple times, which is time-consuming and difficult to achieve synchronous lifting and lowering; pin-type adjustment requires repeatedly inserting and removing the pin and adjusting the pad, which is cumbersome and can easily cause construction delays.

[0005] Poor stress stability: Single-point threaded connection bears the entire load, which can easily lead to thread wear and stripping after long-term use, posing a safety hazard; plug-in support lacks auxiliary load-bearing structure, has insufficient lateral stability, and is prone to overturning due to eccentric load;

[0006] Complex structure and low adaptability: The multi-level pin holes require prefabricated fixed spacing, which cannot flexibly adapt to different height adjustment needs. There is no linkage adjustment mechanism between the support and the column, making it difficult to quickly match different construction scenarios.

[0007] Inconvenient to assemble and disassemble: Traditional devices require tools (such as wrenches) for adjustment, making operation difficult when working at heights; the matching precision requirements between the plug-in slot and the support are high, and assembly failure is easily caused by construction errors;

[0008] Insufficient safety: Lack of anti-detachment design, connectors are prone to detaching from the slot due to vibration or accidental contact; the extension length of the support component lacks a locking mechanism, posing a risk of accidental retraction.

[0009] Therefore, a wooden formwork early-stripping support device is proposed to address the above problems. Utility Model Content

[0010] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a wooden formwork early dismantling support device to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, this utility model provides the following technical solution: a wooden formwork early dismantling support device, comprising: an upper support body, a lower support body, and a bidirectional threaded connecting column. The bidirectional threaded connecting column has an upper threaded section and a lower threaded section, the upper threaded section and the lower threaded section having opposite directions of rotation. The lower support body includes a base plate and a columnar base on the base plate. The top of the columnar base has a first threaded hole that mates with the lower threaded section. The base plate has four multi-level slots with mutually perpendicular extension directions evenly distributed around its circumference. The upper support body includes a columnar main body and a support plate on its top. The bottom of the columnar main body has a second threaded hole that mates with the upper threaded section. The side wall of the columnar main body is hinged with four telescopic support members, and the end of each support member has an insertion part that mates with the multi-level slots.

[0012] Preferably, the telescopic support includes a fixed rod and a telescopic rod movably sleeved therein. The fixed rod is hinged to the side wall of the columnar main body via a pivot. The telescopic rod has the insertion part at its end. The fixed rod has an adjusting bolt for locking the extension length of the telescopic rod.

[0013] Preferably, the multi-level slots are trapezoidal slots extending radially along the base plate, with an adjacent slot spacing of 50-100mm and a slot depth of 10-15mm.

[0014] Preferably, the bidirectional threaded connecting column has an operating part in the middle, which is a hexagonal prism structure or a cylindrical structure with anti-slip texture.

[0015] Preferably, the insertion part is a trapezoidal block that matches the shape of the multi-level slot, and its bottom is provided with an anti-detachment protrusion. The side wall of the multi-level slot is provided with a limiting groove that matches the anti-detachment protrusion.

[0016] Preferably, the upper surface of the support plate is provided with anti-slip texture, and its edge is provided with an upwardly extending guard edge with a height of 10-20mm.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] This device solves the technical problems of low adjustment efficiency, poor stress stability, and cumbersome disassembly and assembly in traditional support devices through the coordinated design of bidirectional threaded connecting columns and multi-level adjustable support components. Specifically, the bidirectional threaded connecting column only requires rotating a single component to simultaneously adjust the height of the upper and lower support bodies, which is more efficient than the traditional step-by-step adjustment method. The four-way distributed telescopic support components, after being inserted into the multi-level slots, form a distributed load-bearing structure, which evenly distributes the load to the base plate, effectively reducing stress concentration at the threaded connection, improving the overall compressive strength, and avoiding the risk of thread stripping. At the same time, the modular design of the support components can be quickly folded and stored, and with the locking mechanism of anti-detachment protrusions and limiting grooves, it not only ensures the safety of high-altitude operations, but also facilitates transportation and reuse. It is especially suitable for complex construction scenarios that require frequent height adjustments, such as large-span concrete pouring and high-rise building formwork support. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the upper support body of this utility model.

[0021] Figure 3 This is a schematic diagram of the overall structure of the lower support body of this utility model.

[0022] Figure 4 This is a schematic diagram of the overall structure of the bidirectional threaded connecting column of this utility model.

[0023] Figure 5 This is a partially enlarged schematic diagram of the insertion part of this utility model.

[0024] Figure 6 This is a partially enlarged schematic diagram of the multi-level card slot of this utility model.

[0025] Figure 7 This is a partial structural diagram of the bottom of the upper support body of this utility model.

[0026] The attached figures are labeled as follows: 1. Upper support body; 2. Lower support body; 3. Bidirectional threaded connecting column; 31. Upper threaded section; 32. Lower threaded section; 21. Base plate; 22. Columnar base; 221. First threaded hole; 211. Multi-stage slot; 11. Column body; 12. Support plate; 111. Second threaded section; 13. Telescopic support component; 131. Insertion part; 134. Rotating shaft; 132. Fixing rod; 135. Adjusting bolt; 133. Telescopic rod; 33. Operating part; 1311. Anti-detachment protrusion; 2111. Limiting groove; 121. Anti-slip texture; 122. Edge retainer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] As attached Figure 1-4 and Figure 7 The illustrated early-stripping support device for wooden formwork includes: an upper support body 1, a lower support body 2, and a bidirectional threaded connecting column 3. The bidirectional threaded connecting column 3 has an upper threaded section 31 and a lower threaded section 32, with the upper threaded section 31 and the lower threaded section 32 having opposite rotation directions. The lower support body 2 includes a base plate 21 and a columnar base 22 disposed on the base plate. The top of the columnar base 22 has a first threaded hole 221 that mates with the lower threaded section 32. The base plate 21 has four multi-level slots 211 with mutually perpendicular extension directions evenly distributed around its circumference. The upper support body 1 includes a columnar body 11 and a support plate 12 disposed on its top. The bottom of the columnar body 11 has a second threaded hole 111 that mates with the upper threaded section 31. The side wall of the columnar body 11 is hinged with four telescopic support members 13, and the end of each support member 13 has an insertion part 131 that mates with the multi-level slots 211.

[0030] Specifically: By using the threaded design with the upper threaded section 31 and the lower threaded section 32 rotating in opposite directions, when rotating the connecting column, the upper and lower support bodies 1 and 2 move synchronously in opposite directions, achieving rapid height adjustment. After the support member 13 is unfolded, it is inserted into the slot 211, distributing the load from the threaded connecting column 3 to the base plate 21, forming a dual force-bearing structure of main (threaded connection) and secondary (support member), solving the problem of low adjustment efficiency of traditional devices. The height can be adjusted synchronously with a single rotation. The distributed load-bearing reduces stress concentration at the threaded connection, avoids the risk of stripping, and improves the life of the device. The four-way support design enhances lateral stability and prevents overturning.

[0031] Example 2

[0032] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with reference to the specific working method described in detail:

[0033] like Figure 2As shown, in a preferred embodiment, the telescopic support 13 includes a fixed rod 132 and a telescopic rod 133 movably sleeved therein. The fixed rod 132 is hinged to the side wall of the columnar body 11 via a pivot 134. The telescopic rod 133 has a plug-in portion 131 at its end. The fixed rod 132 is provided with an adjusting bolt 135 for locking the extension length of the telescopic rod 133. Furthermore, by sliding the telescopic rod 133 within the fixed rod 132, it matches the multi-level slots 211 of different heights to lock the length of the telescopic rod 133, ensuring that the support 13 remains fixed under force, providing a flexible length adjustment function to adapt to different construction height requirements.

[0034] like Figure 3 As shown, in a preferred embodiment, the multi-level slot 211 is a trapezoidal slot extending radially along the base plate 21, with an adjacent slot spacing of 50-100mm and a slot depth of 10-15mm. Furthermore, by utilizing the self-locking characteristic of the trapezoidal cross section, the contact area between the insertion part 131 and the slot 211 is increased, providing graded height adjustment accuracy, balancing adjustment flexibility and structural strength, ensuring the insertion depth of the insertion part 131, preventing lateral dislodgement, improving insertion stability, and preventing the support member from detaching under vibration load.

[0035] like Figure 4 As shown, in a preferred embodiment, the bidirectional threaded connecting column 3 has an operating part 33 in the middle. The operating part 33 is a hexagonal prism structure or a cylindrical structure with anti-slip texture. Furthermore, the operating part 33 provides a tool (such as a wrench) clamping surface or manual grip friction to facilitate the application of rotational torque.

[0036] like Figure 5 and Figure 6 As shown, in a preferred embodiment, the insertion part 131 is a trapezoidal block that matches the shape of the multi-level slot 211. The bottom of the block is provided with an anti-detachment protrusion 1311, and the side wall of the multi-level slot 211 is provided with a limiting groove 2111 that matches the anti-detachment protrusion 1311. Furthermore, when the slot 211 is inserted, the anti-detachment protrusion 1311 and the limiting groove 2111 form a mechanical interlock to prevent the insertion part from accidentally coming out.

[0037] like Figure 2 As shown, in a preferred embodiment, the upper surface of the support plate 12 is provided with anti-slip texture 121, and its edge is provided with an upwardly extending guard edge 122. The height of the guard edge 122 is 10-20mm. Furthermore, the anti-slip texture 121 increases the friction between the support plate 12 and the contact surface of the template, and the guard edge 122 can limit the lateral displacement of the template, prevent slippage, ensure accurate template positioning, avoid displacement during concrete pouring, reduce the use of auxiliary fasteners, and simplify the construction process.

[0038] The working process of this utility model is as follows: During construction, firstly, the base plate 21 of the lower support body 2 is fixed in a predetermined position, and the lower threaded section 32 of the bidirectional threaded connecting column 3 is screwed into the first threaded hole 221 of the columnar base 22. Then, the second threaded hole 111 of the upper support body 1 is screwed into the upper threaded section 31 of the connecting column to form a preliminary assembly. Rotate the operating part (33) in the middle of the connecting column. Because the upper and lower threaded sections 31 and 32 rotate in opposite directions, the upper and lower support bodies 1 and 2 move synchronously towards or in opposite directions to achieve overall height adjustment. After adjustment, the four retractable support members 13 on the side wall of the upper support body 1 are unfolded around the rotating shaft 134 to a horizontal state. According to the height... To adjust the length of the telescopic rod 133, pull it to align the insertion part 131 with the corresponding multi-level slot 211 on the bottom plate 21 of the lower support body 2. After insertion, it is locked by the anti-loosening protrusion 1311 and the limiting groove 2111. Finally, tighten the adjusting bolt 135 to fix the length of the telescopic rod 133. At this time, the load is transferred through the support plate 12 to the bidirectional threaded connecting column 3 and the four-way distributed support member 13, forming a main and auxiliary double load-bearing structure. When disassembling, operate in reverse. Loosen the adjusting bolt 135 to retract the telescopic rod 133, disengage it from the slot 211, fold and store the support member 13, and rotate the connecting column 3 in the opposite direction to quickly separate the upper and lower support bodies 1 and 2, completing the recycling.

[0039] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0040] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0041] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A timber formwork early-stripping support device, characterized in that, include: The structure comprises an upper support (1), a lower support (2), and a bidirectional threaded connecting column (3). The bidirectional threaded connecting column (3) has an upper threaded section (31) and a lower threaded section (32). The upper threaded section (31) and the lower threaded section (32) have opposite directions of rotation. The lower support (2) includes a base plate (21) and a columnar base (22) disposed on the base plate. The columnar base (22) has a first threaded hole (221) at its top that mates with the lower threaded section (32). The base plate (21) The upper support body (1) has four multi-level slots (211) that extend perpendicularly to each other in a circumferential direction. The upper support body (1) includes a columnar body (11) and a support plate (12) on its top. The bottom of the columnar body (11) is provided with a second threaded hole (111) that mates with the upper threaded section (31). The side wall of the columnar body (11) is hinged with four telescopic support members (13). The end of each support member (13) is provided with an insertion part (131) that mates with the multi-level slots (211).

2. The early-stripping support device for wooden formwork according to claim 1, characterized in that: The retractable support (13) includes a fixed rod (132) and a telescopic rod (133) movably sleeved therein. The fixed rod (132) is hinged to the side wall of the columnar body (11) via a pivot (134). The telescopic rod (133) has a plug-in part (131) at its end. The fixed rod (132) has an adjusting bolt (135) for locking the extension length of the telescopic rod (133).

3. The early stripping support device for wooden formwork according to claim 1, characterized in that: The multi-level slot (211) is a trapezoidal slot extending radially along the base plate (21), with a spacing of 50-100mm between adjacent slots and a slot depth of 10-15mm.

4. The early-stripping support device for wooden formwork according to claim 1, characterized in that: The bidirectional threaded connecting column (3) has an operating part (33) in the middle, which is a hexagonal prism structure or a cylindrical structure with anti-slip texture.

5. The early-stripping support device for wooden formwork according to claim 2, characterized in that: The insertion part (131) is a trapezoidal block that matches the shape of the multi-level slot (211). It has an anti-detachment protrusion (1311) at its bottom and a limiting groove (2111) corresponding to the anti-detachment protrusion (1311) on the side wall of the multi-level slot (211).

6. The early-stripping support device for wooden formwork according to claim 1, characterized in that: The upper surface of the support plate (12) is provided with anti-slip texture (121), and its edge is provided with an upwardly extending guard edge (122), the height of which is 10-20mm.

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