A template and method for elevator shaft construction
By using single formwork with bent structures in elevator shaft construction and using the docking mechanism of convex and concave parts, the problem of splicing and dismantling existing formworks in narrow spaces is solved, and the construction accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202310182651.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-24
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2043-02-24
AI Technical Summary
The existing elevator shaft construction formwork is difficult to splice, reinforce and dismantle in a narrow space, resulting in poor construction accuracy and molding quality, and difficult to remove the formwork, affecting construction efficiency.
The single body formwork with a bending structure is adopted to achieve the docking of adjacent monomers by the combination of the convex and the concave parts, reducing the difficulty of connection operation, and improving the construction disassembly and assembly efficiency and mold stability through the use of fasteners.
The molding accuracy of the inner bottom corner position of the elevator shaft is improved, the error caused by the scattered formwork is reduced, the construction accuracy and molding quality is improved, and the disassembly and assembly process of the formwork is simplified.
Smart Images

Figure CN116005953B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of shaft support moulds, and in particular to a template and a method for elevator shaft construction. Background Art
[0002] In the formwork project, the elevator shaft is formed by casting after supporting the formwork. Therefore, the construction quality requirements of the support formwork of the elevator shaft are particularly important. At present, most formwork sites use scattered wooden formwork. During on-site processing, the dimensional accuracy is poor, the space is small and the materials in the shaft are too many to be deployed, the reinforcement is difficult, and the support and disassembly are too complicated. It is easy to cause the expansion form to be misaligned, and the net size and diagonal squareness of the shaft cavity are poor, affecting the construction quality of the elevator shaft. After the completion of the formwork, the shaft formwork generates annular pressure after pouring concrete, and the edges of the formwork joints are all pressed tightly without any gaps, making it difficult to remove the formwork. Each time the construction is turned over, all the reinforcements and vertical parts need to be removed, and they need to be assembled again when they turn over to the construction layer, which is time-consuming and laborious; after the turnover, the inner wall of the elevator shaft is uneven due to errors after each layer of formwork casting, and the molding quality is uneven.
[0003] At present, when metal formwork is used for construction, the dimensional accuracy can be reduced by bolt connection and other methods, but it is still essentially a loose-fitting construction method. Especially for narrow elevator shafts, the formwork is inconvenient to splice, reinforce and dismantle, the loose-fitting formwork is inconvenient to transport, and the construction between different floors is independent of each other, which makes it difficult to ensure the construction accuracy and molding quality. Summary of the invention
[0004] The purpose of the present invention is to address the defects of the prior art and provide a template and method for elevator shaft construction, which can use monomers with bending structures for splicing to ensure the molding accuracy of the bottom angle position in the elevator shaft, and use the combination of convex and concave parts to complete the docking of adjacent monomers, reduce the difficulty of connection operation to improve the construction and disassembly efficiency, reduce the error caused by loose templates, and improve construction accuracy and molding quality.
[0005] The first object of the present invention is to provide a template for elevator shaft construction, using the following scheme:
[0006] It comprises a monomer and a fastener, wherein a convex portion or a concave portion is provided at a side edge of the monomer, the convex portion / concave portion can be docked and spliced with the concave portion / convex portion at the side edge of an adjacent monomer, and the convex portion can be pressed against the concave portion to be docked and spliced; the fastener is buckled with the concave and convex portion to be docked and spliced, and exerts a restraining force to maintain the position of the concave and convex portion after docking and splicing.
[0007] Furthermore, the monomer includes a base plate and a strip block. The strip block is installed on the edge of the base plate and combines with the base plate to form a concave or convex portion. The base plate is a bent plate, and the two sides of the bending line correspond to two adjacent side surfaces of the inner wall of the elevator shaft.
[0008] Furthermore, the base plate is a 90° bent plate, the bending line of the base plate is used to fit the bottom angle of the elevator shaft, and the axis of the strip block is parallel to the bending line of the base plate.
[0009] Furthermore, the first strip block corresponding to the concave portion is retracted into the edge of the substrate, and a first inclined surface for bearing the convex portion is provided on the first strip block, and a concave structure with an obtuse angle is formed between the first inclined surface and the edge of the substrate, forming the concave portion.
[0010] Furthermore, the second strip block portion corresponding to the convex portion protrudes out of the edge of the substrate to form a convex structure protruding from the substrate, which becomes the convex portion; and a second inclined surface for pressing the concave portion is provided on the protruding portion of the second strip block.
[0011] Furthermore, the fastener includes a buckle and a tension rod, the buckle is buckled on the concave part and the convex part after the butt joint, and semi-surrounds the concave part and the convex part, and the tension rod abuts against the buckle through a tensioning member.
[0012] Furthermore, the monomer is provided with an avoidance structure for the tie rod to pass through, and the avoidance structure is opened on the concave part and the convex part.
[0013] Furthermore, the fastener also includes a pad, which is located on one side of the convex part or the concave part, and the pad is embedded in the buckle together with the concave part and the convex part after being butt-jointed.
[0014] The second object of the present invention is to provide a working method using the template for elevator shaft construction as shown in the first object, comprising:
[0015] Configure the size and number of units according to the size of the elevator shaft;
[0016] Multiple monomers are hoisted into the elevator shaft, the bending lines of the monomers are aligned with the bottom angles of the inner wall of the elevator shaft, and the sides of the monomers are aligned with the sides of the inner wall of the elevator shaft;
[0017] The edges of adjacent monomers are butted and spliced by the convex part and the concave part, and fasteners are installed at the butted and spliced positions;
[0018] After the formwork is completed, pouring and curing are carried out. After the curing is completed, the unit is dismantled and hoisted to the next construction layer for reuse.
[0019] Furthermore, after the fasteners in the elevator shaft are installed, reinforcing connectors are installed to connect the fasteners as a whole, and the reinforcing connectors are removed first when removing the mold.
[0020] Compared with the prior art, the present invention has the following advantages and positive effects:
[0021] (1) In view of the problems that the molds in the elevator shaft are inconvenient to support and reinforce, and the molding accuracy and quality are insufficient, monomers with bending structures can be used for splicing to ensure the molding accuracy of the bottom corners in the elevator shaft, and the combination of convex and concave parts can be used to complete the docking of adjacent monomers, thereby reducing the difficulty of connection operations to improve the efficiency of construction and disassembly, reduce the errors caused by loose templates, and improve construction accuracy and molding quality.
[0022] (2) The shape of the buckle is adapted to the combined shape of the strip blocks after docking and splicing. The buckle covers the side of the strip block away from the substrate. At the same time, the buckle is also engaged with the side of the strip block to constrain the splicing state of the convex part and the concave part to prevent the convex part and the concave part from loosening or detaching.
[0023] (3) Fasteners are applied to the first strip block and the second strip block together, which can not only apply a fastening force in a direction perpendicular to the base plate to resist the pressure of concrete toward the elevator shaft during pouring, but also use the inclined surface effect to apply a fastening force in a direction parallel to the base plate to resist the expansion force along the horizontal direction of the elevator shaft wall during concrete pouring, thereby maintaining the stability of the mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0025] Figure 1 Schematic diagram of the template used for elevator shaft construction in Examples 1 and 2 of the present invention.
[0026] Figure 2 Schematic diagram of the first monomer connected to the second monomer in Examples 1 and 2 of the present invention.
[0027] Figure 3 Schematic diagram of a substrate with a first strip block in Examples 1 and 2 of the present invention.
[0028] Figure 4 It is a schematic diagram of the end surface of the substrate with the first strip block in Examples 1 and 2 of the present invention.
[0029] Figure 5 Schematic diagram of the structure of the tie rods in Examples 1 and 2 of the present invention.
[0030] Figure 6 Schematic diagram of the structure of the buckle in Examples 1 and 2 of the present invention.
[0031] Figure 7 Schematic diagram of a substrate with a second strip block in Examples 1 and 2 of the present invention.
[0032] Figure 8 Schematic diagram of the end surface of the substrate with the second strip block in Examples 1 and 2 of the present invention.
[0033] Fig. 9 It is a schematic diagram of multiple units installed in a shaft in Examples 1 and 2 of the present invention.
[0034] Among them, 1. the first unit, 2. the tie rod, 3. the buckle, 4. the second unit, 5. the first bar block, 6. the second bar block, 7. the base plate, 8. the pad, 9. the reserved groove, 10. the first inclined surface, 11. the second inclined surface, 12. the elevator shaft, 13. the third unit, 14. the fourth unit. DETAILED DESCRIPTION
[0035] Example 1
[0036] In a typical embodiment of the present invention, Figure 1-Figure 9 As shown, a template for elevator shaft construction is provided.
[0037] The quality requirements for formwork construction in the elevator shaft are particularly important in formwork engineering. During construction, due to the large amount of materials and small space in the shaft, it is inconvenient to operate, which makes reinforcement difficult and easily causes the mold to expand and misalign, affecting the net size of the shaft cavity and the diagonal squareness. Traditional formwork construction requires complex reinforcement, and is inconvenient to construct during formwork support and dismantling due to the narrow space of the shaft, resulting in low formwork support and dismantling efficiency, affecting construction efficiency.
[0038] Based on this, a template for elevator shaft construction is provided in the present embodiment, in which the convex parts of the edges of adjacent units are pressed against the concave parts to achieve matching assembly. The units are L-shaped bent plates to ensure the diagonal squareness. The template system is assembled in combination with reinforcement parts to facilitate turnover construction. The inclined surface at the assembly position forms a draft angle, which can facilitate demolding after the fasteners are released. The fasteners lock the convex and concave parts of the edges to improve the stability after supporting the formwork.
[0039] Below, the above-mentioned template for elevator shaft construction is described in detail with reference to the accompanying drawings.
[0040] See also Figure 1 The template used for elevator shaft construction mainly includes multiple monomers. The cross-section of a common elevator shaft 12 is square or rectangular. For the elevator shaft 12 area at the same height, four monomers are configured for diagonal installation to form a template that supports the inner wall of the elevator shaft 12.
[0041] The monomer includes a base plate 7 and a strip block. The base plate 7 is an L-shaped bent plate as the main structure of the monomer. The strip block is installed on the edge of the base plate 7. The edge position of the monomer indicated in this embodiment refers to the edge of the monomer along the circumference of the elevator shaft 12. The bending line of the base plate 7 is used as a reference, and the end perpendicular to the bending line and away from the bending line is the edge of the base plate 7. The direction extending along the bending line is the length direction of the base plate 7, and the direction perpendicular to the bending line and parallel to the plane of the bending plate is the width direction. The shape of the base plate 7 is adapted to the shape of the inner wall of the elevator shaft 12.
[0042] Four monomers correspond to four substrates 7, and the adjacent monomers are designed with a docking structure. The corresponding substrate 7 edge is provided with a strip block, and the docking structure is divided into a concave part and a convex part, and the concave part and the convex part can be docked and spliced. The strip block is pre-fixed on the substrate 7, and the two edge positions of the same substrate 7 can be configured with a concave part or a convex part at the same time, or one edge can be configured with a concave part and the other edge can be configured with a convex part. The stacking and splicing relationship between adjacent monomers is determined according to the surrounding support template.
[0043] The first strip block 5 corresponding to the concave portion is integrally retracted within the edge of the substrate 7. The first strip block 5 is provided with a first inclined surface 10 and a first bottom surface adjacent to each other and distributed at an acute angle. Figure 4 As shown, the first bottom surface of the first strip block 5 is attached to the substrate 7, and the first inclined surface 10 faces the other unit to be connected. Since there is a certain distance between the first strip block 5 and the edge of the substrate 7 to which it is connected, a concave structure with an obtuse angle is formed between the first inclined surface 10 and the edge of the substrate 7, which becomes a concave portion.
[0044] For the convex part, one side of the corresponding second strip block 6 is connected to the substrate 7, and the other side protrudes out of the edge of the substrate 7, such as Figure 8 As shown, the second strip block 6 is provided with a second inclined surface 11 and a second bottom surface adjacent to each other and distributed at an obtuse angle, the second bottom surface of the second strip block 6 is in contact with the substrate 7, and the second inclined surface 11 faces the other monomer to be connected. Since the second strip block 6 partially protrudes out of the edge of the substrate 7 to which it is connected, a convex structure protruding from the substrate 7 is formed, which becomes a convex portion.
[0045] After the convex and concave parts of the adjacent monomers are matched, the first inclined surface 10 of the first strip block 5 of the concave part fits with the second inclined surface 11 of the second strip block 6 of the concave part, so that the inclined surfaces are assembled to form a 180° combination. Figure 1 As shown, the concave portion of the first monomer 1 is docked with the convex portion of the second monomer 4, and the edge of the substrate 7 corresponding to the first strip block 5 can be fitted with the edge of the substrate 7 corresponding to the second strip block 6. During assembly, the monomer with the concave portion is first installed in place, and then the corresponding monomer with the convex portion is moved in a direction perpendicular to the bottom surface of the first strip block 5 so that the convex portion is vertically pressed against the concave portion.
[0046] After the concave and convex parts are assembled, a draft angle can be formed. When supporting the formwork, fasteners are applied to the first strip block 5 and the second strip block 6 together, which can not only apply a fastening force in a direction perpendicular to the base plate 7 to resist the pressure of the concrete in the direction of the elevator shaft 12 during pouring, but also utilize the inclined surface to apply a fastening force in a direction parallel to the base plate 7 to resist the expansion force in the horizontal direction along the inner wall of the elevator shaft 12 when pouring concrete, thereby maintaining the stability of the mold.
[0047] In this embodiment, the structure of the bar block on the side where the bar block is butt-jointed is designed, and no further requirements are made for the structure on the other side of the bar block. Figure 1 The vertical plane shown makes the strip block as a whole have a right-angled trapezoidal cross-section; the side of the strip block away from the butt joint can also be provided with an inclined surface so that the cross-section of the strip block is a quadrilateral, and the angle of the inclined surface is equal to the first inclined surface 10 and the second inclined surface 11, so that the cross-section of the strip block can be an isosceles trapezoid or a parallelogram.
[0048] The fastener includes a buckle 3 and a tension rod 2. The buckle 3 is buckled on the bar block after being butt-jointed. One end of the tension rod 2 passes through the buckle 3 and the single body and is connected to the template on the other side of the elevator shaft 12. The single body is fastened by arranging a tensioning member on the tension rod 2.
[0049] like Figure 1 As shown, after adjusting the cross-sectional shape of the strip block, the buckle 3 of the fastener is adapted accordingly, and the shape of the buckle 3 is adapted to the combined shape of the strip blocks after docking and splicing. The buckle 3 covers the side of the strip block away from the substrate 7, and the buckle 3 is also engaged with the side of the strip block to constrain the splicing state of the convex and concave parts to avoid loosening and detachment of the convex and concave parts.
[0050] The structure of the buckle 3 is concave, such as Figure 6 As shown, it can be engaged on the concave and convex parts after the two monomers are assembled. The buckle 3 can maintain its shape when pressure is applied to the tie rod 2, so that the pressure on the tie rod 2 is applied to the base plate 7 through the strip block, thereby resisting the pressure applied by the concrete.
[0051] If the width of the first strip block 5 and the second strip block 6 after being assembled does not match the buckle 3, a pad 8 can be added to the side of the first strip block 5 or the second strip block 6 to increase the width so that the buckle 3 can fit stably and ensure the restraining force of the buckle 3 in the direction parallel to the substrate 7.
[0052] It should be pointed out that the concave and convex parts are distributed along the axial direction of the strip block, and the strip block is distributed along the vertical direction of the elevator shaft 12, and is arranged parallel to the base plate 7. After reserving matching positions of other structures at both ends of the base plate 7 in the vertical direction, the strip block is arranged through the two matching positions to increase the matching range of the concave and convex parts, improve the reinforcement effect and reduce the mold expansion problem.
[0053] Along the axial direction of the strip block, multiple fasteners are used to reinforce the joints of the monomers from multiple points, such as Figure 2 In order to facilitate the passage of the tie rod 2 through the monomer, a reserved hole or a reserved groove 9 is provided on the monomer to be installed on the tie rod 2, such as Figure 3 and Figure 7 As shown, the reserved holes or reserved grooves 9 are also distributed on the single bar blocks, and the joint positions of the concave and convex parts formed by the bar blocks are used as the key reinforcement areas to avoid expansion mold misalignment at this position.
[0054] The tie rod 2 can be a screw rod, such as Figure 5 As shown, one end is connected to a limit baffle, and the other end can cooperate with a tensioning member. The tensioning member can be a nut. The position of the nut on the screw rod is adjusted to change the distance between the limit baffle and the nut, thereby achieving the purpose of clamping the template.
[0055] On the other hand, Fig. 9 As shown, in order to facilitate the disassembly and assembly of the monomers in the elevator shaft 12, the strip blocks arranged at the ends of the monomers are configured, with the side with the elevator shaft 12 door as the front, the side away from the elevator shaft 12 door as the back, and the two sides adjacent to the elevator shaft 12 door as the side; the edges on both sides of the first monomer 1 are both recessed, and the bending line of the substrate 7 of the first monomer 1 is attached to a bottom angle at the back of the elevator shaft 12, and the substrates 7 on both sides of the bending line are attached to the back and one side respectively; the edge on one side of the second monomer 4 is a convex portion and the edge on the other side is a concave portion, the bending line of the substrate 7 of the second monomer 4 is attached to another bottom angle at the back of the elevator shaft 12, and the substrates 7 on both sides of the bending line are attached to the back and another side respectively, and the convex portion of the second monomer 4 is butt-jointed with the concave portion of the first monomer 1 on the back of the elevator shaft 12.
[0056] A convex portion is set on one side edge of the third monomer 13 and the fourth monomer 14, the bending line of the substrate 7 of the third monomer 13 is attached to a bottom corner in front of the elevator shaft 12, the substrates 7 on both sides of the bending line are attached to the front and a side respectively, and the convex portion of the third elastic body is connected with the concave portion of the second monomer 4 on one side of the elevator shaft 12; the bending line of the substrate 7 of the fourth monomer 14 is attached to another bottom corner in front of the elevator shaft 12, the bending line is attached to the front and another side respectively, and the convex portion of the fourth monomer 14 is connected with the concave portion of the first monomer 1 on the other side of the elevator shaft 12.
[0057] It should be noted that the four monomers are all L-shaped structures, and the positions corresponding to the bottom corners of the elevator shaft 12 are pre-bent structures of the base plate 7 of the monomers, and the pre-bent structure can be used to ensure the diagonal squareness of the inner cavity of the elevator shaft 12 after forming. After the four monomers are butt-jointed and spliced, a support template for the inner cavity of the elevator shaft 12 is formed, and the shape of the outer circle of the support template is the same as the shape of the inner wall of the elevator shaft 12 to be cast.
[0058] In actual use, the strip blocks of the monomers can be pre-connected with the base plate 7 and customized in the factory. The inclined surface of the strip block corresponding to the concave part is adapted to the inclined surface of the strip block corresponding to the convex part. After the two strip blocks are assembled, the draft angle is naturally formed at 180°. After being reinforced with fasteners, the base plates 7 corresponding to the monomers are assembled to form a complete plane. After the monomers on the same floor are arranged in the elevator shaft 12, the fasteners in the elevator shaft 12 are connected as a whole through L-shaped or U-shaped reinforcement connectors to improve the strength of the support template formed by the monomers.
[0059] Four L-shaped monomers are installed corresponding to the bottom corners of the elevator shaft 12, and the bottom corners of the elevator shaft 12 are internal angles. Then, the fasteners are assembled into one with the monomers using tensioners in a designed manner, and the through-wall screws are locked to establish a connection between the inner formwork formed by the monomers and the outer formwork of the elevator shaft 12. After the concrete is poured and cured, the through-wall screws are pulled out.
[0060] When removing the mold, first remove the third monomer 13 with the convex portion, and then remove the second monomer 4, the fourth monomer 14 and the first monomer 1 in sequence. The principle is to install first and then remove, and then install later and then remove.
[0061] The convex part at the end of the L-shaped monomer forms a draft angle. At the same time, the size of the L-shaped monomer is smaller than the horizontal width and horizontal length of the elevator shaft 12. The four monomers after dismantling can be gathered in the elevator shaft 12, and then hoisted to the next construction layer in the elevator shaft 12, and the assembly method of the previous layer is repeated for turnover use.
[0062] Example 2
[0063] In another typical embodiment of the present invention, Figure 1-Figure 9 As shown, a working method is given.
[0064] Using the template for elevator shaft construction as described in Example 1, comprising:
[0065] The size and number of the monomers are configured according to the size of the elevator shaft 12;
[0066] A plurality of monomers are hoisted into the elevator shaft 12, with the bending lines of the monomers fitting with the bottom angles of the inner wall of the elevator shaft 12, and the sides of the monomers fitting with the sides of the inner wall of the elevator shaft 12;
[0067] The edges of adjacent monomers are butted and spliced by the convex part and the concave part, and fasteners are installed at the butted and spliced positions;
[0068] After the formwork is completed, pouring and curing are carried out. After the curing is completed, the unit is dismantled and hoisted to the next construction layer for reuse.
[0069] In combination with Example 1, for an elevator shaft 12 having a square or rectangular horizontal cross-section, in order to facilitate the disassembly and assembly of the monomer in the elevator shaft 12, the strip blocks arranged at the ends of the monomer are configured so that the side with the elevator shaft 12 door is the front, the side away from the elevator shaft 12 door is the back, and the two sides adjacent to the elevator shaft 12 door are the sides.
[0070] Both side edges of the first monomer 1 are concave, and the bending line of the substrate 7 of the first monomer 1 is attached to a bottom corner behind the elevator shaft 12, and the substrates 7 on both sides of the bending line are attached to the back and a side respectively; one side edge of the second monomer 4 is a convex portion and the other side edge is a concave portion, and the bending line of the substrate 7 of the second monomer 4 is attached to another bottom corner behind the elevator shaft 12, and the substrates 7 on both sides of the bending line are attached to the back and another side respectively, and the convex portion of the second monomer 4 is butted with the concave portion of the first monomer 1 on the back of the elevator shaft 12.
[0071] A convex portion is set on one side edge of the third monomer 13 and the fourth monomer 14, the bending line of the substrate 7 of the third monomer 13 is attached to a bottom corner in front of the elevator shaft 12, the substrates 7 on both sides of the bending line are attached to the front and a side respectively, and the convex portion of the third elastic body is connected with the concave portion of the second monomer 4 on one side of the elevator shaft 12; the bending line of the substrate 7 of the fourth monomer 14 is attached to another bottom corner in front of the elevator shaft 12, the bending line is attached to the front and another side respectively, and the convex portion of the fourth monomer 14 is connected with the concave portion of the first monomer 1 on the other side of the elevator shaft 12.
[0072] When removing the mold, first remove the third monomer 13 with the convex portion, and then remove the second monomer 4, the fourth monomer 14 and the first monomer 1 in sequence. The principle is to install first and then remove, and then install later and then remove.
[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A template for elevator shaft construction, characterized in that: It comprises a single body and a fastener, wherein a convex part or a concave part is provided at a side edge of the single body, the convex part / concave part can be butted and spliced with a concave part / convex part at a side edge of an adjacent single body, and the convex part can be pressed against a concave part to be butted and spliced; the fastener is buckled with the concave part and the convex part to be butted and spliced, and exerts a restraining force to keep the position of the concave part and the convex part after butt splicing; The monomer comprises a base plate and a strip block, the strip block is installed on the edge of the base plate and then combined with the base plate to form a concave portion or a convex portion, the base plate is a bent plate, and the two sides of the bending line correspond to the two adjacent side surfaces of the inner wall of the elevator shaft; The first strip block corresponding to the concave portion is retracted into the edge of the substrate, and a first inclined surface for bearing the convex portion to press is provided on the first strip block, and a concave structure with an obtuse angle is formed between the first inclined surface and the edge of the substrate, forming a concave portion; The second strip block portion corresponding to the convex portion protrudes out of the edge of the substrate to form a convex structure protruding from the substrate, which becomes the convex portion; the protruding portion of the second strip block is provided with a second inclined surface for pressing the concave portion; The fastener comprises a buckle and a tension rod. The buckle is buckled on the concave part and the convex part after the butt joint, and semi-surrounds the concave part and the convex part. The tension rod abuts against the buckle through a tensioning piece.
2. The template for elevator shaft construction according to claim 1, characterized in that: The base plate is a 90° bent plate, the bending line of the base plate is used to fit the bottom angle of the elevator shaft, and the axis of the strip block is parallel to the bending line of the base plate.
3. The template for elevator shaft construction according to claim 1, characterized in that: The monomer is provided with an avoidance structure for the tie rod to pass through, and the avoidance structure is opened on the concave part and the convex part.
4. The formwork for elevator shaft construction according to claim 1, characterized in that: The fastener also includes a cushion block, which is located on one side of the convex part or the concave part. The cushion block is embedded in the buckle together with the concave part and the convex part after being butt-jointed.
5. A working method for a template for elevator shaft construction according to any one of claims 1 to 4, characterized in that: include: Configure the size and number of units according to the size of the elevator shaft; Multiple monomers are hoisted into the elevator shaft, the bending lines of the monomers are aligned with the bottom angles of the inner wall of the elevator shaft, and the sides of the monomers are aligned with the sides of the inner wall of the elevator shaft; The edges of adjacent monomers are butted and spliced by the convex part and the concave part, and fasteners are installed at the butted and spliced positions; After the formwork is completed, pouring and curing are carried out. After the curing is completed, the unit is dismantled and hoisted to the next construction layer for reuse.
6. The working method according to claim 5, characterized in that: After the fasteners in the elevator shaft are installed, the reinforcing connectors are installed to connect the fasteners as a whole. The reinforcing connectors are removed first when the mold is removed.
Citation Information
Patent Citations
Inner formwork for concrete walls at deformation joint
CN203080911U
Modular aluminum alloy building templates
CN205976467U