Combined mold with clamping positioning function for reserved hole and construction method thereof

Abstract

The application provides a reserved hole combined mold with clamping positioning function and a construction method thereof, which comprises a clamp, one end of the clamp is provided with a hinged part for realizing rotation or angle adjustment of the clamp, the other end is provided with an opening and closing part for closing and opening to clamp or release a water stop steel plate; at least four formwork units, each formwork unit comprises an upper formwork and a lower formwork, the upper formwork is arranged at the upper end of the clamp, the lower formwork is arranged at the lower end of the clamp, and the hinged part is hinged to the lower formwork; the formwork units are arranged in a clamped mode, forming a closed formwork block frame; and adjustable inner support rods are arranged between the opposite two formwork units and used for supporting the formwork units. The application solves the problem of poor new and old concrete joint surface effect after the traditional formwork is completed, and the method is more beneficial to the combination of new and old concrete, so that the post-poured hole has better anti-seepage effect after pouring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a reserved hole combined mold with clamping and positioning functions and a construction method thereof. BACKGROUND

[0002] Currently, high-rise residential buildings mostly adopt aluminum mold construction technology. In order to facilitate the up-and-down transmission of aluminum molds and floor measurement and line laying, material transmission openings and line laying holes are reserved for standard floors. The molds for the reserved openings are mostly wooden molds nailed on site or integrated molds welded from steel plates. The positions where the material transmission openings and line laying holes are arranged are floors without waterproofing requirements, and no waterproofing is performed in the later stage. When the material transmission openings and line laying holes are sealed and poured, seepage problems are extremely likely to occur due to the problems of poor workability of concrete, poor workability of concrete, and ineffective treatment of the contact surface between new and old concrete. The concrete floor is mostly a single-layer steel reinforced floor, which is difficult to position and pre-bury the water stop steel plate in the steel binding stage, which is not conducive to the seepage prevention of the later pouring position. SUMMARY

[0003] The present application aims at the deficiencies of the prior art and provides a reserved hole combined mold with clamping and positioning functions and a construction method thereof.

[0004] The specific technical solutions are as follows:

[0005] A reserved hole combined mold with clamping and positioning functions comprises:

[0006] A clamp is provided with a hinge part at one end for realizing the rotation or angle adjustment of the clamp and an opening and closing part at the other end for closing and opening to clamp or release the water stop steel plate;

[0007] At least four template units are provided, each of which comprises an upper template and a lower template. The upper template is arranged at the upper end of the clamp, the lower template is arranged at the lower end of the clamp, and the hinge part is hinged to the lower template. The template units are arranged in a clamped manner to form a closed template block frame; and

[0008] An adjustable inner support rod is arranged between the two template units to support the template units.

[0009] Optionally, the template units are clamped with the clamping blocks and the clamping grooves of the adjacent template units.

[0010] Optionally, the upper template and the lower template are both provided with extension ends extending into the interior of the clamp. When the opening and closing part is closed, the extension ends are used to abut on the upper and lower surfaces of the water stop steel plate respectively, so that the water stop steel plate is clamped firmly between the template block and the clamp.

[0011] Optionally, the upper and lower templates are provided with extension ends extending into the interior of the clamp, and the extension ends are used for abutting on the upper and lower surfaces of the water stop steel plate respectively when the opening and closing part is closed, so that the water stop steel plate is firmly clamped between the template block and the clamp.

[0012] Optionally, the adjustable inner support rod comprises a sleeve and a threaded rod, the threaded rod is internally provided with an internal thread, the threaded rod is matched with the internal thread of the sleeve, linear movement relative to the sleeve is realized through screwing movement, and the total length of the adjustable inner support rod is adjusted.

[0013] Optionally, the top of the template unit is provided with an annular handle for facilitating manual carrying and installing the template.

[0014] Optionally, the clamp is a circular arc cylindrical structure and is integrally welded with the template unit, is used for accommodating and fixing the water stop steel plate, and forms an E-shaped groove after the concrete is solidified.

[0015] A construction method of a reserved hole combined mold with clamping and positioning functions comprises the following steps:

[0016] Step one, combining the template units according to the size of the reserved hole;

[0017] Step two, first, splicing the lower templates between adjacent template units, placing the water stop steel plate in the clamp, then welding and fixing, then turning over the upper template, closing the opening and closing part to clamp the water stop steel plate, and then splicing the upper templates between adjacent template units;

[0018] Step three, adjusting the adjustable inner support rod to support the two opposite template units and ensure the stability of the mold;

[0019] Step four, placing the mold at the designated position before pouring the concrete;

[0020] Step five, after the concrete is solidified, sequentially removing the adjustable inner support rod, and turning over the upper template and the lower template to remove the mold.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. The template units with different lengths are designed, the free combination for different sizes of reserved holes is realized, whether it is a small wire laying hole or a larger scale material conveying hole, the most suitable template configuration can be found, the modular concept not only covers a wide range of application scenarios, but also provides great flexibility and creativity space for the construction team, the detachable and reusable characteristics of the mold unit greatly reduce the consumption of new materials, meet the current advocated circular economy principle, reduce the pressure on natural resources while reducing the construction cost, and show the sustainable development vision of the building industry;

[0023] 2、Through the ingenious fusion of the template and the clamp, the positioning problem of the water stop steel plate that has plagued the construction industry for a long time is successfully solved, not only ensuring the tightness of the waterproof structure, but also laying a solid physical foundation for the overall improvement of the floor anti-seepage performance; the formation of the E-shaped groove marks that the close combination of the new and old interfaces after concrete pouring has reached an unprecedented level, this new structure not only strengthens the waterproof effect, but also provides convenience for subsequent maintenance and repair, significantly prolonging the service life of the building facilities;

[0024] 3、The arc-shaped notch left by the cylindrical clamp creates the best bonding conditions between the newly poured concrete and the original structure, maximally reducing the possibility of leakage and improving the reliability of the overall structure; by improving the waterproof performance of the concrete, the application indirectly reduces the resource consumption required for future maintenance, echoing the concept of green construction and contributing to the construction of an ecological friendly urban environment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a working state overall structure schematic diagram of the reserved hole combination type mold with clamping and positioning functions;

[0026] Figure 2 It is a clamping state overall structure schematic diagram of the template unit;

[0027] Figure 3 It is a demolding state overall structure schematic diagram of the template unit;

[0028] Figure 4 It is a structure schematic diagram of the buckle and the clamping groove;

[0029] Figure 5 It is a structure schematic diagram of the adjustable inner support rod;

[0030] Figure 6 It is a side view structure schematic diagram of the template unit in the working state;

[0031] Figure 7 It is a structure schematic diagram of the short template unit;

[0032] Figure 8 It is a structure schematic diagram of the long template unit.

[0033] Figure 9 It is a reserved hole completion effect sectional view;

[0034] Figure 10 It is a reserved hole completion effect plan view;

[0035] In the figure: 1, clamp; 11, hinged part; 12, opening and closing part; 2, template unit; 21, upper template; 22, lower template; 23, clamping block; 24, clamping groove; 25, extension end; 26, protruding support point; 27, annular handle; 3, adjustable inner support rod; 30, clamping groove; 31, sleeve; 32, threaded rod; 4, water stop steel plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0038] The present application will be further described below with reference to the drawings and specific embodiments, but is not limited to the present application.

[0039] The combined mold with clamping and positioning functions for reserved hole provided in the present application, with reference to Figures 1-3 , comprises:

[0040] The clamp 1 is provided with a hinged part 11 at one end for realizing rotation or angle adjustment of the clamp 1, and is provided with an opening and closing part 12 at the other end for closing and opening to clamp or release the water stop steel plate 4;

[0041] At least four template units 2, each of which comprises an upper template 21 and a lower template 22, the upper template 21 is arranged at the upper end of the clamp 1, the lower template 22 is arranged at the lower end of the clamp 1, and the hinged part 11 is hinged to the lower template 22; the template units 2 are arranged in a clamping manner, forming a closed template block frame; and

[0042] The adjustable inner support rod 3 is arranged between the two template units 2 for supporting the template units 2.

[0043] Specifically, in the embodiment, the hinge part 11 of the clamp 1 is realized by a pin shaft or the like, allowing the clamp 1 to rotate or adjust the angle within a certain range to adapt to the special needs of the different thicknesses of the water stop steel plate 4 and the reserved hole opening. The opening and closing part 12 is rotated by the hinge part 11 to realize the automatic opening and closing of the clamp 1, which is used to clamp or release the water stop steel plate 4 placed in the mold. The opening and closing part 12 is preferably wrapped with soft material to protect the surface of the water stop steel plate 4 from being damaged. Among them, the formwork unit 2 is provided with at least four, each formwork unit 2 is subdivided into upper formwork 21 and lower formwork 22 two parts. The upper formwork 21 is located above the clamp 1 and is fixedly connected thereto; the lower formwork 22 is located below the clamp 1 and is also fixedly connected. It is worth noting that the hinge part 11 is directly hinged with the lower formwork 22, which ensures the stability and flexibility of the clamp 1. The formwork units 2 are connected by clamping to form a closed and detachable formwork block frame suitable for different sizes and shapes of reserved holes. In order to strengthen the overall stability and compression resistance of the formwork block frame, adjustable inner support rods 3 are introduced, which are arranged between the opposite two formwork units 2 and can be adjusted in length to adapt to different widths of the reserved hole, and the support rod body is made of high-strength material. In actual application, first of all, according to the size of the reserved hole, select the appropriate formwork unit 2 combination, quickly build the mold frame through the clamping mechanism. Then, place the multi-directional water stop steel plate 4 on the corresponding mold, and use the opening and closing part 12 of the clamp 1 to clamp it stably. At this time, the angle of the hinge part 11 can be adjusted to optimize the fit of the mold and the water stop steel plate 4. Finally, adjust the inner support rod according to the actual span of the reserved hole to ensure the firmness and reliability of the overall structure of the mold. After the above preparation procedures are completed, concrete pouring can be started. The existence of the mold not only ensures the accurate forming of the reserved hole, but also the built-in water stop steel plate 4 naturally becomes part of the floor after pouring, which significantly improves the waterproof performance of the floor.

[0044] In the embodiment, referring to Figure 2 , Figure 4 , each formwork unit 2 is clamped with the clamping groove 24 of the adjacent formwork unit 2 through the clamping block 23, wherein the clamping groove 24 is a U-shaped clamping groove 24, one formwork unit 2 is provided with a U-shaped clamping groove 24, and the edges of the two adjacent formwork units 2 are provided with clamping blocks 23 matched with the U-shaped clamping groove 24, and the protruding part of the clamping block 23 is wedge-shaped. When the adjacent formwork units 2 are connected, the clamping block 23 on one side will be accurately inserted into the clamping groove 24 on the other side to form physical occlusion, thereby establishing the effect of modular splicing.

[0045] In the embodiment, referring to Figure 2 , Figure 3The upper formwork 21 and the lower formwork 22 are each provided with an extension end 25 extending into the inside of the clamp 1, which is preferably made of high-strength alloy material, capable of bearing the pressure during the concrete pouring process and ensuring no damage when in contact with the water-stop steel plate 4; the length, width and height of the extension end 25 are precisely calculated to ensure that, in the closed state of the mold, the upper and lower surfaces of the water-stop steel plate 4 can be properly covered, but not too long to cause inconvenience in mold operation or unstable structure; when the opening and closing part 12 is closed, the extension end 25 is used to abut on the upper and lower surfaces of the water-stop steel plate 4 respectively, thereby firmly fixing the position of the water-stop steel plate 4 in the three-dimensional space and ensuring that it will not be displaced or deformed in the subsequent concrete pouring process. The design of the extension end 25 not only solves the positioning problem of the water-stop steel plate 4, but also indirectly improves the structural rigidity of the entire mold block frame through close cooperation with the clamp 1, reducing the risk of deformation caused by external load (such as the weight of concrete).

[0046] With reference to Figure 2 The opposite inner side of the formwork unit 2 is provided with a protruding support point 26 for positioning the adjustable inner support rod 3, and the two ends of the adjustable inner support rod 3 are provided with a clamping groove 30 matched with the protruding support point 26. The groove structure not only limits the placement position of the inner support rod, but also ensures that the inner support rod can be firmly fixed on the formwork unit 2 when bearing external force, effectively dispersing and transmitting the force.

[0047] In this embodiment, with reference to Figure 5 The adjustable inner support rod 3 includes a sleeve 31 and a threaded rod 32, the threaded rod 32 is internally provided with an internal thread, and the threaded rod 32 is matched with the internal thread of the sleeve 31, and the linear movement relative to the sleeve 31 is realized through the screwing movement, so as to adjust the total length of the adjustable inner support rod 3. When the threaded rod 32 rotates under the action of external force, the friction force between the external thread of the threaded rod 32 and the internal thread of the sleeve 31 is converted into axial thrust, which promotes the movement of the threaded rod 32 along the axis direction of the sleeve 31. If the screwing direction is clockwise, the threaded rod 32 will gradually extend out of the sleeve 31, thereby lengthening the length of the entire inner support rod; on the contrary, counterclockwise rotation will make the threaded rod 32 retract into the sleeve 31, thereby shortening the total length of the inner support rod.

[0048] In this embodiment, with reference to Figure 6The top of the template unit 2 is provided with an annular handle 27 for facilitating manual carrying and installing the template. The annular handle 27 is preferably made of light high-strength metal material, such as aluminum alloy or stainless steel, to ensure that the handle is strong enough while reducing the overall weight, avoiding the burden on the hands caused by long-time carrying. The handle is in the form of a circular ring, the inner diameter of which is designed to be just suitable for the palm of an adult to grip, and the outer diameter needs to take into account the aesthetics and functionality, and should not be too large to affect the finger bending comfort during carrying. The connecting part of the annular handle 27 and the template unit 2 should be thickened to improve the bearing capacity and prevent breakage. In addition, in order to enhance the friction when gripping, avoid slipping in the case of hand sweat or wet environment, the surface of the annular handle 27 can be treated with frosted or rubber coating. This not only can improve the hand feeling, but also can play a certain buffering effect to protect the fingers from accidental impact injury.

[0049] Referring to Figures 2-3 The clamp 1 is in the form of a circular arc cylinder, and the main body of the clamp 1 is made of high-strength and corrosion-resistant steel material, which is integrally welded with the template unit 2. The inner cavity of the circular arc cylinder-shaped clamp 1 forms a space suitable for accommodating the water stop steel plate 4. After the template unit 2 is assembled, before the concrete pouring, the water stop steel plate 4 will be precisely placed in the center of the clamp 1. At this time, the extension ends 25 at the top and bottom of the template unit 2 will be respectively attached to the two sides of the water stop steel plate 4, and the water stop steel plate 4 will be firmly fixed by strong extrusion force. This design ensures that the position of the water stop steel plate 4 will not shift during the hardening process of the concrete, laying a solid foundation for the subsequent waterproof performance. After the concrete is completely solidified and the mold is removed, a clear E-shaped groove will be left in the space enclosed by the circular arc cylinder-shaped clamp 1. This groove constitutes a multi-layer composite waterproof barrier, which can effectively block the water penetration path and provide a convenient access for later maintenance, facilitating regular inspection and repair of the waterproof layer, and ensuring that the building maintains good waterproof performance for a long time.

[0050] The construction method of the combined mold with clamping and positioning function for the reserved hole provided by the application refers to Figures 6-10 , comprising the following steps:

[0051] Step one, first, according to the actual size requirements of the reserved hole, select the appropriate components from the pre-set different types of template units 2. For example, for smaller line holes, only four short template blocks may be needed to form a square or rectangular layout; while for larger material conveying holes, long and short template blocks may be combined to form more complex or non-standard shapes.

[0052] Step two, starting from the lower template 22, use the special buckle and card slot 24 to fix the adjacent template unit 2 one by one; then put the water stop steel plate 4 into the clamp 1 accurately, use the arc cylindrical structure of the clamp 1 for initial positioning, then adopt welding or other fixing means to lock the water stop steel plate 4 firmly in the predetermined position to prevent displacement in the subsequent construction process; gently turn over and butt joint the upper template 21, make the opening and closing part 12 close smoothly and clamp the fixed water stop steel plate 4, again use the buckle and card slot 24 to connect the adjacent upper templates 21 firmly, thus the mold body assembly is completed;

[0053] Step three, according to the size of the reserved hole and the prediction of the amount of concrete pouring, rotate the position of the threaded rod 32 in the sleeve 31 to adjust the length of the adjustable inner support rod 3, so as to ensure that it can stably support the template units 2 on the opposite sides and enhance the rigidity and stability of the whole mold;

[0054] Step four, before pouring concrete, place the mold in the designated position, and after confirming that the mold is stable and correct, start pouring concrete according to the plan;

[0055] Step five, after the concrete solidifies, first release the support function of the adjustable inner support rod 3, then gradually remove the buckle connection, gently separate the upper and lower templates 22, and in the whole process, the action should be gentle to prevent damaging the completed concrete surface, complete the mold removal; collect all the disassembled mold components, clean and inspect them, and then properly store or prepare for the next use after confirming that there is no damage.

[0056] The above is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious change made by applying the contents of the present application should be included in the protection scope of the present application.

Claims

1. A combined mold for a reserved hole having a clamping positioning function, characterized by, The utility model relates to a kind of adjustable mold for pouring concrete, including: Clamp, one end of the clamp is provided with a hinged part for realizing rotation or angle adjustment of the clamp, and the other end is provided with an opening and closing part for closing or opening to clamp or release the water stop steel plate; At least four template units, each template unit includes an upper template and a lower template, the upper template is arranged at the upper end of the clamp, the lower template is arranged at the lower end of the clamp, and the hinged part is hinged to the lower template;The template units are arranged in a card slot, forming a closed template block frame;The upper template and the lower template are both provided with an extension end extending into the interior of the clamp, and the extension end is used for abutting on the upper and lower surfaces of the water stop steel plate respectively when the opening and closing part is closed, so that the water stop steel plate is firmly clamped between the template block and the clamp;And Adjustable inner support rod, arranged between the two template units, for supporting the template unit.

2. The split mold with a clamping positioning function for a reserved hole according to claim 1, wherein, Each of the template units is connected to the adjacent template unit by a clamping block and a clamping slot.

3. The split mold with a clamping positioning function for a reserved hole according to claim 1, wherein, The opposite inner side of the template unit is provided with a protruding support point for positioning the adjustable inner support rod, and the two ends of the adjustable inner support rod are provided with a clamping groove matched with the protruding support point.

4. The split mold with a clamping positioning function for a reserved hole according to claim 1, wherein, The adjustable inner support rod includes a sleeve and a threaded rod, the threaded rod is provided with an internal thread, and the threaded rod is matched with the internal thread of the sleeve, and the relative linear movement of the sleeve is realized by screwing to adjust the total length of the adjustable inner support rod.

5. The split mold with a clamping positioning function for a reserved hole according to claim 1, wherein, The top of the template unit is provided with a ring handle for easy manual handling and installation of the template.

6. The split mold with a clamping positioning function for a reserved hole according to claim 1, wherein, The clamp is a circular arc cylindrical structure, which is integrally welded with the template unit, used to accommodate and fix the water stop steel plate, and form an E-shaped groove after the concrete solidifies.

7. The construction method of the combined mold for a reserved hole having a clamping positioning function according to any one of claims 1 to 6, characterized in that, The method includes the following steps: Step one, select the corresponding template unit according to the size of the reserved hole for combination; Step two, first splice the lower template between adjacent template units, place the water stop steel plate in the clamp, then weld and fix, then turn over the upper template, close the opening and closing part to clamp the water stop steel plate, and then splice the upper template between adjacent template units; Step three, adjust the adjustable inner support rod to support the two opposite template units to ensure the stability of the mold; Step four, place the mold at the designated position before pouring concrete; Step five, after the concrete solidifies, sequentially remove the adjustable inner support rod, and reverse the upper template and the lower template for disassembly, to complete the mold disassembly.

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