A new type of free-wood formwork reinforcing device
By integrating support and limiting functions through a new type of formwork reinforcement device, the problem of the independence of the formwork and conduit system is solved, enabling precise control and fixation of the conduit, and improving construction efficiency and structural quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTR ENG GRP FOURTH CONSTR CO LTD
- Filing Date
- 2026-06-26
- Publication Date
- 2026-07-24
AI Technical Summary
In existing building construction, the formwork support and electrical wiring conduit pre-embedding system are independent. The conduits are not firmly fixed, are easy to move, and cannot be adapted to different diameters and positions. After demolding, holes are left, which affects the waterproofness and appearance quality of the structure.
A novel timber-free formwork reinforcement device is designed, which combines a support plate, an adjustment mechanism, and a disassembly and assembly mechanism to achieve permanent conduit positioning and internal support. Through the cooperation of screws, levers, and connecting rods, the position of the guide ring can be adjusted to adapt to different wall thicknesses and conduit requirements, and the fasteners can be quickly replaced.
It enables precise control and fixation of conduits, avoids displacement, improves construction efficiency, reduces the number of holes left, and enhances structural stability and waterproofing.
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Figure CN122446871A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of building construction technology, specifically a novel timber-free formwork reinforcement device. Background Technology
[0002] In concrete pouring construction, formwork erection and electrical wiring conduit pre-embedding are closely related core processes. Currently, the industry has gradually adopted standardized keels made of steel, aluminum alloy, or PVC as formwork back bracing, combined with modern support systems such as modular scaffolding to complete concrete pouring, replacing traditional wooden back bracing. This has improved formwork accuracy and turnover efficiency to some extent. However, electrical wiring conduit pre-embedding still uses traditional methods, binding it to the reinforcing steel frame with wire or temporarily fixing it to the inside of the formwork using simple clips. This existing technology has many insurmountable drawbacks. Firstly, the standardized formwork system and the conduit pre-embedding system remain independent, failing to achieve functional integration and unable to utilize the formwork system to provide support for the conduits. Firstly, the advantages of reliable internal support and formwork reinforcement were not fully utilized. Secondly, the conduit fixing was seriously inadequate, making it prone to displacement, floating, bending, or even breakage during concrete vibration. This required extensive concrete chipping for subsequent repairs, damaging the overall structural integrity. Furthermore, it was impossible to accurately control the spacing, elevation, and direction of the conduits. Thirdly, the existing conduit fixing components were of limited specifications, unable to accommodate conduits of different diameters, and could not be flexibly adjusted according to wall thickness and pouring area, resulting in poor versatility. Fourthly, the formwork and conduit pre-embedding processes were separated, leading to numerous overlapping operations. External fixing devices needed to be removed after formwork demolding, leaving holes in the concrete surface that affected the structure's waterproofing and appearance.
[0003] CN223849583U discloses a formwork reinforcement tie rod for building construction, relating to the field of auxiliary construction devices. The device includes a through-tube; a rotating rod rotatably passing through the through-tube with both ends extending out of the tube; each end of the rotating rod having a threaded section with opposite thread directions; two threaded nuts threadedly fitted onto the two threaded sections; and a clamping bracket fixed to the periphery of the threaded nuts. By inserting the through-tube into pre-drilled holes in the precast concrete slab and formwork, and by rotating the rotating rod, the two threaded sections engage with the two threaded nuts respectively. During this engagement, the two threaded nuts drive the two clamping brackets to move relative to each other, causing the clamping brackets to press against the surface of the formwork, thereby generating compressive force and reinforcing the formwork.
[0004] This device can quickly reinforce the outside of the formwork and is compatible with standardized keel formwork systems, which improves the efficiency of formwork construction to a certain extent. However, it cannot permanently limit the conduit inside the concrete pouring area, cannot adjust the position of the internal fixing point, and cannot quickly replace conduits of different diameters. Its function is limited. Now, a new type of timber-free formwork reinforcement device is proposed, which can integrate the functions of internal support of the formwork and permanent conduit limiting. It can flexibly adjust the position of the fixing point, quickly replace the guide ring to adapt to different conduits, and does not require later dismantling. Summary of the Invention
[0005] To address the problems mentioned in the background section, this invention provides a novel timber-free formwork reinforcement device.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel timber-free formwork reinforcement device, comprising a support plate, one end of which is threadedly connected to a bolt, an adjustment mechanism is installed inside the support plate, one end of the adjustment mechanism is equipped with a disassembly and assembly mechanism, and one end of the disassembly and assembly mechanism is equipped with a wiring conduit;
[0007] The adjustment mechanism includes a screw, a lever, and a first connecting seat. The screw is rotatably connected to the inside of the support plate, the lever is fixed to the outside of the screw, and the first connecting seat is fixed to one end of the support plate. A first connecting rod is hinged to one end of the first connecting seat.
[0008] The disassembly and assembly mechanism includes a fixing nut, a limiting rod, and a limiting seat. The fixing nut is installed at one end of the first connecting rod, the limiting rod is rotatably connected to the top of the fixing nut, and the limiting seat is fixed to the top of the limiting rod.
[0009] Preferably, the screw is externally threaded with an adjusting seat, one end of which is fixed with a second connecting seat, and one end of which is hinged with a second connecting rod. This converts the rotational motion of the screw into the oscillating motion of the second connecting rod. By moving the adjusting seat along the screw axis, the hinge angle between the second connecting rod and the first connecting rod changes, thereby achieving continuous adjustment of the spatial position of the guide ring. This adapts to the pre-embedded conduit requirements of different wall thicknesses and pouring areas, while also providing internal support for the formwork.
[0010] Preferably, the screw is provided in two sets, and the screws are symmetrically distributed about the central axis of the handle. The two sets of symmetrically distributed screws can make the forces on both ends of the adjustment seat balanced, avoid uneven loading and jamming during the adjustment process, ensure smooth and stable adjustment, and at the same time make the overall force of the device symmetrical, enhance the stability of the internal support of the template, and prevent the device from tilting or shifting during concrete pouring.
[0011] Preferably, four sets of the first connecting seats are provided, and the first connecting seats are arranged in a circular array about the central axis of the support plate. One end of the first connecting rod and one end of the second connecting rod are hinged. The four sets of circular array first connecting seats can simultaneously install four sets of first connecting rod and second connecting rod assemblies. Multiple conduit fixing points are set on the same device to meet the synchronous pre-embedding requirements of multiple wiring conduits. The circular distribution makes the device uniformly stressed, improving the overall structural strength and support stability.
[0012] Preferably, four sets of the second connecting seats are provided, and the second connecting seats are arranged in a circular array about the central axis of the adjusting seat.
[0013] Preferably, a slider is slidably connected inside the first connecting rod, and a pressure block is slidably connected inside the slider. A limit block is fixed at the top of the pressure block, and a return spring is fixed at the bottom of the pressure block. A limit groove is formed inside the first connecting rod. Two sets of pressure blocks are provided. The pressure blocks are symmetrically distributed about the central axis of the return spring. The limit block and the limit groove are inserted into each other. The fixing nut is installed at one end of the slider.
[0014] Preferably, the limiting seat has a limiting component fixed inside, a pressing nut threaded inside the limiting seat, anti-slip texture fixed outside the pressing nut, a support rod inserted inside the pressing nut, a guide ring rotatably connected to the top of the support rod, and four sets of gathering blocks fixed to the top of the limiting component. The gathering blocks are arranged in a circular array about the central axis of the limiting component, which can realize the quick assembly and disassembly of the guide ring. The pressing nut locks and releases the support rod through threaded transmission, which is simple to operate. The anti-slip texture increases the friction of the hand, which is convenient for manual operation. The guide ring can rotate to adapt to the different routing requirements of the wiring conduit, improving the convenience of construction.
[0015] Preferably, the bottom end of the pressing nut has an inclined surface that matches the top of the gathering block, and the anti-slip texture is provided in several sets, which are arranged in a circular array about the central axis of the pressing nut.
[0016] Preferably, the central shaft of the limiting member has a slot, the central shaft of the pressing nut has a slot, the opening of the slot of the limiting member is larger than the slot of the pressing nut, and the diameter of the slot of the pressing nut is equal to the diameter of the support rod.
[0017] Preferably, two sets of support plates are provided, and the support plates are symmetrically distributed about the central axis of the handle, and the wiring conduit passes through the central axis of the guide ring.
[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0019] This invention, through the coordination of a screw, a hand rod, and a first connecting seat, integrates the internal support of the timber-free formwork with the permanent positioning function of the wiring conduit. This solves the core problems of existing formwork systems and conduit pre-embedding systems being independent, the conduit fixing point positions being unadjustable, and the conduit easily shifting during concrete vibration. The hand rod drives the screw to rotate, which in turn drives the adjusting seat to move axially. Through the hinged transmission of the first and second connecting rods, the spatial position of the guide ring can be flexibly adjusted to adapt to the conduit pre-embedding requirements of different wall thicknesses and pouring areas. Simultaneously, it provides internal support for the formwork, ultimately simplifying the formwork and conduit pre-embedding process, precisely controlling the conduit elevation and direction, and preventing conduit shifting during concrete vibration.
[0020] This invention, through the combination of a fixing nut, a limiting rod, and a limiting seat, enables the device to quickly install and replace the guide ring, adapting to the pre-embedding requirements of wiring conduits of different diameters. It solves the core problems of existing conduit fixing components, such as limited specifications, poor versatility, and the need for removal after demolding, which easily leaves concrete holes. The fixing nut enables quick connection with the adjustment mechanism, and the pressing nut, in conjunction with the limiting component, can quickly lock or loosen the support rod. The guide ring is pre-embedded in the concrete and does not need to be removed later. Ultimately, this invention improves the device's versatility, shortens the construction cycle, and avoids leaving holes on the concrete surface that affect the structure's waterproofing and appearance. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0022] Figure 2 This is a schematic diagram of the overall installation structure of the present invention;
[0023] Figure 3 This is a schematic diagram of the unfolded structure of the adjustment mechanism of the present invention;
[0024] Figure 4 For the present invention Figure 3 Enlarged cross-sectional view of a portion of point A in the middle section;
[0025] Figure 5 This is a schematic diagram of the retractable structure of the adjustment mechanism of the present invention;
[0026] Figure 6 For the present invention Figure 5 Enlarged cross-sectional view of section B in the middle section;
[0027] Figure 7 For the present invention Figure 6 Enlarged cross-sectional view of section C in the middle;
[0028] Figure 8 This is a schematic cross-sectional view of the first connecting rod portion of the present invention;
[0029] Figure 9This is an exploded magnified structural diagram of the disassembly and assembly mechanism of the present invention;
[0030] Figure 10 This is an exploded, enlarged, bottom-view structural diagram of the disassembly and assembly mechanism of the present invention;
[0031] Figure 11 This is an enlarged structural diagram of the wiring conduit connection state of the present invention;
[0032] Figure 12 This is an enlarged structural diagram of the adjustment mechanism of the present invention;
[0033] Figure 13 This is a partial enlarged cross-sectional schematic diagram of the adjustment mechanism of the present invention;
[0034] Figure 14 For the present invention Figure 13 A magnified schematic diagram of a partial cross-section at point D.
[0035] In the diagram: 1. Support plate; 2. Bolt; 3. Adjustment mechanism; 301. Screw; 302. Hand lever; 303. First connecting seat; 304. First connecting rod; 305. Adjustment seat; 306. Second connecting seat; 307. Second connecting rod; 308. Slider; 309. Pressure block; 310. Limiting block; 311. Return spring; 312. Limiting groove; 4. Disassembly and assembly mechanism; 401. Fixing nut; 402. Limiting rod; 403. Limiting seat; 404. Limiting component; 405. Pressing nut; 406. Anti-slip texture; 407. Support rod; 408. Guide ring; 5. Wiring conduit. Detailed Implementation
[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0037] like Figures 1 to 14 As shown, the present invention provides a novel timber-free formwork reinforcement device, including a support plate 1, one end of which is threadedly connected to a bolt 2, an adjustment mechanism 3 is installed inside the support plate 1, one end of the adjustment mechanism 3 is installed with a disassembly and assembly mechanism 4, and one end of the disassembly and assembly mechanism 4 is installed with a wiring conduit 5.
[0038] like Figures 1 to 11As shown, the adjustment mechanism 3 includes a screw 301, a lever 302, and a first connecting seat 303. The screw 301 is rotatably connected to the inside of the support plate 1, the lever 302 is fixed to the outside of the screw 301, the first connecting seat 303 is fixed to one end of the support plate 1, and a first connecting rod 304 is hinged to one end of the first connecting seat 303. An adjustment seat 305 is threaded to the outside of the screw 301, a second connecting seat 306 is fixed to one end of the adjustment seat 305, and a second connecting rod 307 is hinged to one end of the second connecting seat 306. Two sets of screws 301 are provided, and the screws 301 are symmetrically distributed about the central axis of the lever 302. Four sets of first connecting seats 303 are provided, and the first connecting seats 303 are arranged in a ring array about the central axis of the support plate 1. One end of the first connecting rod 304 and one end of the second connecting rod 307 are hinged together. Four sets of second connecting seats 306 are provided, and the second connecting seats 306 are arranged in a ring array about the central axis of the adjustment seat 305.
[0039] The above solution involves placing the support plate 1 in two sets of templates and fixing the support plate 1 with two sets of bolts 2. Rotating the lever 302 drives the screw 301 to rotate, thereby moving the position of the adjusting seat 305 through the screw 301. This causes the second connecting rod 307 to move along with the adjusting seat 305, resulting in a change in the angle between the second connecting rod 307 and the first connecting rod 304. This causes the second connecting rod 307 to unfold or retract, thereby adjusting the position of the guide ring 408 at the end of the second connecting rod 307. This allows the user to install the wiring conduit 5 in different positions using the guide ring 408.
[0040] like Figures 1 to 11As shown, the disassembly and assembly mechanism 4 includes a fixing nut 401, a limiting rod 402, and a limiting seat 403. The fixing nut 401 is installed at one end of the first connecting rod 304. The limiting rod 402 is rotatably connected to the top of the fixing nut 401. The limiting seat 403 is fixed to the top of the limiting rod 402. A limiting component 404 is fixed inside the limiting seat 403. A pressing nut 405 is threaded inside the limiting seat 403. Anti-slip texture 406 is fixed to the outside of the pressing nut 405. A support rod 407 is inserted inside the pressing nut 405. A guide ring 408 is rotatably connected to the top of the support rod 407. Four sets of gathering blocks are fixed to the top of the limiting component 404. The blocks are arranged in a circular array about the central axis of the limiting member 404. The bottom end of the pressing nut 405 has an inclined surface that matches the top of the gathering block. Several sets of anti-slip textures 406 are provided. The anti-slip textures 406 are arranged in a circular array about the central axis of the pressing nut 405. The central axis of the limiting member 404 has a slot. The central axis of the pressing nut 405 has a slot. The opening of the slot of the limiting member 404 is larger than the slot of the pressing nut 405. The diameter of the slot of the pressing nut 405 is equal to the diameter of the support rod 407. Two sets of support plates 1 are provided. The support plates 1 are symmetrically distributed about the central axis of the handle 302. The wiring tube 5 passes through the central axis of the guide ring 408.
[0041] Using the above solution: when guiding the wiring conduit 5 is not required, the fixing nut 401 and guide ring 408 do not need to be installed, saving materials. Furthermore, the screw 301 can be replaced entirely with a threaded rod at both ends adapted to the bolt 2, which supports the templates at both ends. When pre-embedding the wiring conduit 5 is required, this device is used to screw the limiting rod 402 and limiting seat 403 into the fixing nut 401, and insert the support rod 407 into the pressing nut 405 and limiting member 404. Rotating the pressing nut 405... When the pressing nut 405 moves down, it drives the four sets of retracting blocks on the limiting member 404 to retract through the inclined plane. Then, the retraction of the limiting member 404 limits the support rod 407 located on the central axis, thereby completing the fixation of the guide ring 408. When it is necessary to replace the guide ring 408 of a different size, the pressing nut 405 is rotated in the opposite direction, so that the pressing nut 405 releases the pressure on the limiting member 404, thereby releasing the support rod 407, and taking out the new support rod 407 and guide ring 408 that meet the size, thus completing the replacement of the guide ring 408.
[0042] like Figures 12 to 14As shown, a slider 308 is slidably connected inside the first connecting rod 304, and a pressure block 309 is slidably connected inside the slider 308. A limit block 310 is fixed at the top of the pressure block 309, and a return spring 311 is fixed at the bottom of the pressure block 309. A limit groove 312 is opened inside the first connecting rod 304. Two sets of pressure blocks 309 are provided. The pressure blocks 309 are symmetrically distributed about the central axis of the return spring 311. The limit block 310 and the limit groove 312 are inserted into each other. A fixing nut 401 is installed at one end of the slider 308.
[0043] The above solution is adopted as follows: By pressing the pressure block 309, the limiting block 310 is disengaged from the limiting groove 312. At this time, the slider 308 can slide along the length direction of the first connecting rod 304, and the fixing nut 401 and the disassembly and assembly mechanism 4 are moved to the required position on the first connecting rod 304. After releasing the pressure block 309, the return spring 311 pushes the pressure block 309 to reset, and the limiting block 310 is inserted into the limiting groove 312 corresponding to the current position, locking the position of the slider 308. This allows the fixed point position of the disassembly and assembly mechanism 4 to be continuously adjusted along the length direction of the first connecting rod 304. It can adapt to the pre-embedded requirements of wiring pipes 5 with different spacings without replacing the first connecting rod 304. The two sets of pressure blocks 309 are symmetrically distributed about the central axis of the return spring 311, so that the limiting blocks 310 are inserted into the corresponding limiting grooves 312 from both sides of the slider 308 simultaneously, ensuring that the slider 308 is evenly stressed on both sides after locking, and preventing the slider 308 from coming out of the limiting groove 312 on one side during concrete vibration.
[0044] The working principle and usage process of this invention: Before operation, complete the assembly and performance verification of each component, confirm that the threaded fit between the support plate 1 and the bolt 2 is smooth, confirm that the rotation of each hinge component of the adjusting mechanism 3 is smooth without jamming, confirm that the fitting accuracy of each threaded connection of the disassembly and assembly mechanism 4 meets the design requirements, verify the forward and reverse transmission performance of the screw 301, confirm that the sliding of the adjusting seat 305 along the screw 301 is smooth without jamming, confirm that the hinged rotation of the first connecting rod 304 and the second connecting rod 307 is flexible, and that the unfolding and retracting strokes meet the design requirements, and verify the connection between the fixing nut 401 and the first connecting rod 307. The installation and fit performance of rod 304 was checked, the rotational fit between limit rod 402 and fixing nut 401 was confirmed to be smooth, the threaded connection performance between pressing nut 405 and limit seat 403 was checked, the retraction and opening action of limit part 404 was confirmed to be normal, and the rotational connection between support rod 407 and guide ring 408 was confirmed to be firm. After the verification was completed, the device was adjusted to the initial standby state, the adjusting seat 305 was in the middle position of screw 301, the first connecting rod 304 and the second connecting rod 307 were in the retracted state, the disassembly and assembly mechanism 4 was in the disassembled state, and all parts were classified and stored for later use.
[0045] Based on the wall thickness and formwork support plan, determine the installation position and quantity of the device. Place the two sets of support plates 1 on the inner side of the two side formworks respectively, so that the central axis of the two sets of support plates 1 coincides. Pass the bolts 2 through the reserved holes of the formwork and screw them into the threaded holes at the end of the support plates 1. Tighten the bolts 2 so that the end face of the support plate 1 is tightly attached to the inner surface of the formwork, completing the initial fixing of the device. According to the pre-embedded position requirements of the wiring conduit 5, rotate the lever 302. The lever 302 drives the two sets of symmetrically distributed screws 301 to rotate synchronously. The screws 301 drive the adjusting seat 305 to move along the axial direction of the screws 301 through the thread transmission. The adjusting seat 305 drives the four sets of second connecting seats 306 to move synchronously. The second connecting seats 306 drive the second connecting rod 307 to rotate around the hinge point. The second connecting rod 307 drives the first connecting rod 304 to rotate around the hinge point of the first connecting seat 303, so that the included angle between the first connecting rod 304 and the second connecting rod 307 increases, and the whole thing unfolds outward.
[0046] Based on the pre-embedded elevation and horizontal position of the wiring conduit 5, continue to rotate the lever 302 to adjust the unfolding angle of the first connecting rod 304 and the second connecting rod 307, so that the end of the first connecting rod 304 moves to the preset wiring conduit fixing point position, lock the position of the lever 302 to prevent the screw 301 from rotating by itself, install the fixing nut 401 on one end of the first connecting rod 304, tighten the fixing nut 401 to complete the connection between the disassembly and assembly mechanism 4 and the adjustment mechanism 3, screw the limit rod 402 into the threaded hole at the top of the fixing nut 401, so that the central axis of the limit seat 403 is perpendicular to the direction of the wiring conduit 5.
[0047] When the pre-embedded position of the wiring conduit 5 needs to be finely adjusted along the length of the first connecting rod 304, press the two sets of pressure blocks 309. The pressure blocks 309 compress the return spring 311 and move into the slider 308. The limiting block 310 moves synchronously with the pressure blocks 309 and disengages from the limiting groove 312. At this time, the slider 308 is unlocked. Push the slider 308 along the length of the first connecting rod 304. The slider 308 drives the fixing nut 401 and the disassembly and assembly mechanism 4 to slide along the first connecting rod 304. When the guide ring 408 moves to the wiring conduit 5, the guide ring 408 moves into the wiring conduit 5. When the pipe 5 is embedded, the pressure block 309 is released, and the restoring force of the return spring 311 pushes the pressure block 309 to move outward. The limiting block 310 is inserted into the limiting groove 312 corresponding to the current position, locking the slider 308 at the current position on the first connecting rod 304. The position adjustment of the disassembly and assembly mechanism 4 along the length direction of the first connecting rod 304 is completed. By the limiting groove 312 being distributed at intervals along the length direction of the first connecting rod 304, the slider 308 can be locked in multiple discrete positions to adapt to the pre-embedding requirements of wiring pipes 5 with different spacing.
[0048] Based on the diameter of the wiring conduit 5, select the corresponding support rod 407 and guide ring 408. Pass the support rod 407 through the center slots of the pressing nut 405 and the limiting member 404 in sequence, so that the opening of the guide ring 408 faces the insertion direction of the wiring conduit 5. Rotate the pressing nut 405, and the pressing nut 405 moves downward along the inner wall of the limiting seat 403. The inclined surface at the bottom of the pressing nut 405 presses against the four sets of gathering blocks at the top of the limiting member 404, so that the four sets of gathering blocks gather towards the center simultaneously. The gathering blocks clamp the outer wall of the support rod 407, thus completing the fixation of the support rod 407 and the guide ring 408. If it is necessary to replace the guide ring 408 with a different specification, rotate the pressing nut 405 in the opposite direction to open the gathering blocks and loosen the support rod 407. Remove the original support rod 407 and guide ring 408, replace them with the required parts, and then retighten the pressing nut 405.
[0049] After completing the installation and position adjustment of all guide rings 408, the wiring conduit 5 is installed. One end of the wiring conduit 5 is passed through the center hole of each guide ring 408 in sequence. The guide ring 408 can rotate around the axis of the support rod 407 to adapt to different routing requirements of the wiring conduit 5. The elevation and spacing of the wiring conduit 5 are adjusted to meet the design requirements. If there are multiple wiring conduits 5 in the same area, corresponding guide rings 408 can be installed at different ends of the first connecting rod 304 to limit and fix each wiring conduit 5. If the construction area does not require pre-embedded wiring conduits 5, the disassembly and assembly mechanism 4 and guide rings 408 can be omitted. The screw 301 can be directly replaced with a threaded rod with threads at both ends that are compatible with the bolts 2. The internal support function of the template is realized through the cooperation of the threaded rod and the bolts 2 on both sides.
[0050] After completing all the procedures of formwork erection, rebar tying and wiring conduit pre-embedding, concrete pouring is carried out. During the concrete pouring process, the vibrator should avoid direct collision with the various parts of the device to prevent displacement or damage. The device is pre-embedded in the concrete and does not need to be removed later. The guide ring 408 forms a continuous rigid support for the wiring conduit 5 to prevent displacement, floating, bending or breakage of the wiring conduit 5 during concrete vibration. The support plate 1, adjustment mechanism 3 and disassembly mechanism 4 serve as internal support components of the formwork to enhance the overall rigidity of the formwork and prevent the formwork from bulging or deforming during concrete pouring. During subsequent electrical construction, the pre-embedded wiring conduit 5 can be used directly for wiring operations.
[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel timber-free formwork reinforcement device, comprising a support plate (1), characterized in that: One end of the support plate (1) is threaded with a bolt (2), and an adjustment mechanism (3) is installed inside the support plate (1). One end of the adjustment mechanism (3) is equipped with a disassembly and assembly mechanism (4), and one end of the disassembly and assembly mechanism (4) is equipped with a wiring conduit (5). The adjustment mechanism (3) includes a screw (301), a lever (302) and a first connecting seat (303). The screw (301) is rotatably connected to the inside of the support plate (1), the lever (302) is fixed to the outside of the screw (301), and the first connecting seat (303) is fixed to one end of the support plate (1). A first connecting rod (304) is hinged to one end of the first connecting seat (303). The disassembly and assembly mechanism (4) includes a fixing nut (401), a limiting rod (402), and a limiting seat (403). The fixing nut (401) is installed at one end of the first connecting rod (304), the limiting rod (402) is rotatably connected to the top end of the fixing nut (401), and the limiting seat (403) is fixed to the top end of the limiting rod (402).
2. The novel timber-free formwork reinforcement device according to claim 1, characterized in that: The screw (301) is externally threaded with an adjusting seat (305), one end of which is fixed with a second connecting seat (306), and one end of the second connecting seat (306) is hinged with a second connecting rod (307).
3. The novel timber-free formwork reinforcement device according to claim 1, characterized in that: Two sets of screws (301) are provided, and the screws (301) are symmetrically distributed about the central axis of the handle (302).
4. The novel timber-free formwork reinforcement device according to claim 2, characterized in that: The first connecting seat (303) is provided in four sets. The first connecting seat (303) is arranged in a ring array about the central axis of the support plate (1). One end of the first connecting rod (304) and one end of the second connecting rod (307) are hinged together.
5. The novel timber-free formwork reinforcement device according to claim 2, characterized in that: The second connecting seat (306) is provided in four sets, and the second connecting seat (306) is arranged in a ring array about the central axis of the adjusting seat (305).
6. The novel timber-free formwork reinforcement device according to claim 1, characterized in that: The first connecting rod (304) is internally connected to a slider (308), and the slider (308) is internally connected to a pressure block (309). The top of the pressure block (309) is fixed with a limit block (310), and the bottom of the pressure block (309) is fixed with a return spring (311). The first connecting rod (304) is internally provided with a limit groove (312). There are two sets of pressure blocks (309). The pressure blocks (309) are symmetrically distributed about the central axis of the return spring (311). The limit block (310) and the limit groove (312) are inserted into each other. The fixing nut (401) is installed at one end of the slider (308).
7. The novel timber-free formwork reinforcement device according to claim 1, characterized in that: The limiting seat (403) has a limiting component (404) fixed inside. The limiting seat (403) has a pressing nut (405) threaded inside. The pressing nut (405) has anti-slip texture (406) fixed outside. The pressing nut (405) has a support rod (407) inserted inside. The top of the support rod (407) is rotatably connected to a guide ring (408). The top of the limiting component (404) has four sets of gathering blocks fixed. The gathering blocks are arranged in a ring array about the central axis of the limiting component (404).
8. The novel timber-free formwork reinforcement device according to claim 7, characterized in that: The bottom end of the pressing nut (405) is provided with an inclined surface that matches the top of the gathering block. Several sets of anti-slip patterns (406) are provided, and the anti-slip patterns (406) are distributed in a ring array about the central axis of the pressing nut (405).
9. The novel timber-free formwork reinforcement device according to claim 7, characterized in that: The center axis of the limiting member (404) has a slot, and the center axis of the pressing nut (405) has a slot. The opening of the slot of the limiting member (404) is larger than that of the slot of the pressing nut (405), and the diameter of the slot of the pressing nut (405) is equal to the diameter of the support rod (407).
10. The novel timber-free formwork reinforcement device according to claim 6, characterized in that: The support plate (1) is provided in two sets, and the support plate (1) is symmetrically distributed about the central axis of the handle (302). The wiring tube (5) passes through the central axis of the guide ring (408).