Truss type unilateral trepanning-free template mounting device

The truss-type single-sided hole-free formwork installation device solves the problems of grout leakage and low efficiency caused by formwork openings in underground construction, achieving efficient formwork utilization and improved construction quality. It is suitable for construction of underground buildings without double-sided formwork support.

CN223838563UActive Publication Date: 2026-01-27CHINA CONSTR EIGHTH ENG BUREAU HUAZHONG CONSTR CO LTD +2
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Patent Information

Application Number
CN202520280438.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-01-27
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Traditional truss formwork devices have problems in underground construction, such as serious grout leakage due to multiple openings in the formwork, low formwork utilization, high construction costs and low efficiency, especially when there is no double-sided formwork support.

Method used

The truss-type single-sided hole-free formwork installation device includes embedded parts, transverse pressure beams and multiple frame bodies. The frame body is equipped with inclined support beams. The formwork installation beam is perpendicular to the bottom beam. The embedded parts are fixed in the pre-cast wall or floor. Fasteners press the transverse pressure beams. The formwork is installed on the formwork installation beam. No holes are needed on the side of the frame body. Large-size formwork is fixed by setting them up side by side.

Benefits of technology

It improves the utilization rate of formwork, reduces the number of concrete leakage points, and enhances construction quality and speed. It is especially suitable for construction scenarios of underground buildings without double-sided formwork.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a truss type unilateral trepanning-free template mounting device, which relates to the technical field of building construction devices, and comprises an embedded part, a transverse pressing beam and a plurality of frame bodies, a formwork mounting beam is arranged on the side edge of each frame body, an inclined strut beam is further arranged in each frame body, and a transverse pressing beam penetrates through all the frame bodies and is supported on the inclined strut beams; one end of the embedded part is embedded in a pre-cast wall or a building floor, the other end of the embedded part penetrates through the transverse pressing beam, and the embedded part is provided with a fastener used for pressing the transverse pressing beam. The trepanning-free formwork installation device has the advantages that a large-size formwork can be fixed through the formwork installation beams which are arranged side by side, trepanning is not needed when the formwork is installed, and therefore the utilization rate of the formwork can be improved, concrete slurry leakage point positions are reduced, and meanwhile engineering quality and construction speed are improved. The formwork mounting device is particularly suitable for construction scenes where concrete side walls of underground buildings are poured and no bilateral formwork supporting conditions exist.
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Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically a truss-type single-sided hole-free template installation device. Background Technology

[0002] Before pouring concrete, formwork is typically installed for building walls. Formwork is usually used in pairs, with two formworks vertically fixed to both sides of the area to be poured. Fixing bolts are then passed through the two formworks, and fastening nuts are installed on the bolts to tighten the formwork from the outside. In the construction of underground structures, the subsequent wall needs to be poured on top of the wall poured first, and the outer side of the first-poured wall becomes the foundation pit retaining wall (see...). Figure 1 Therefore, due to space constraints and limitations in formwork conditions, the pouring area cannot be supported on one side (outer side) of the pouring area. Only single-sided formwork can be used for construction. Traditionally, truss-type conventional perforated formwork devices are used when pouring such walls. However, this type of perforated formwork device has many drawbacks, such as excessive perforation leading to severe grout leakage and affecting concrete quality; low formwork utilization, increasing construction costs; and low construction efficiency, extending the construction period. Utility Model Content

[0003] In view of this, the present invention provides a truss-type single-sided hole-free formwork installation device, including embedded parts, transverse pressure beams and multiple frame bodies;

[0004] The frame includes a bottom beam, a formwork installation beam, an upper connecting beam, and an outer support beam. The bottom beam, the formwork installation beam, the upper connecting beam, and the outer support beam are connected end to end to form a frame structure. The formwork installation beam is perpendicular to the bottom beam.

[0005] The frame also includes inclined support beams, with both ends of the inclined support beams fixed to the bottom beam and the formwork installation beam, respectively. All frame members are arranged in parallel, and the transverse pressure beams pass through all frame members and are supported on the inclined support beams.

[0006] One end of the embedded part is fixed in the pre-cast wall or floor slab, and the other end of the embedded part extends out of the pre-cast wall and passes through the transverse pressure beam. The end of the embedded part extending out of the pre-cast wall is also provided with a fastener, which is connected to the embedded part and presses the transverse pressure beam.

[0007] The template to be installed is fixed to the template installation beam.

[0008] Furthermore, a support block is provided below the bottom beam, and the bottom beam is supported on the floor by the support block.

[0009] Furthermore, the bottom beam is provided with a height adjustment threaded hole, and a height adjustment screw is provided in the height adjustment threaded hole. The top of the support block is connected to the lower end of the height adjustment screw.

[0010] Furthermore, the outer side of the template installation beam is provided with multiple horizontal keels, all of which are perpendicular to the template installation beam. The horizontal keels are arranged vertically relative to each other and are fixed to the template installation beam.

[0011] Furthermore, multiple vertical keels are provided on the outer side of the horizontal keel. All vertical keels are perpendicular to the horizontal keel and are arranged side by side. The vertical keels are fixed to the horizontal keel, and the template to be installed is fixed to the vertical keels.

[0012] Furthermore, the embedded component includes a foot bolt, a connecting sleeve, and an external connecting rod; one end of the foot bolt is embedded in the pre-cast wall or floor, and the other end is coaxially connected to one end of the external connecting rod through the connecting sleeve, and the other end of the external connecting rod passes through the transverse pressure beam.

[0013] Furthermore, both ends of the outer connecting rod are provided with connecting threads, and the fastener is threadedly connected to the outer connecting rod.

[0014] Furthermore, the fastener is a wing nut.

[0015] Furthermore, the frame body is also provided with an oblique reinforcing beam, one end of which is connected to the outer support beam and the other end is connected to the bottom beam.

[0016] Furthermore, the transverse pressure beam is an I-beam.

[0017] The beneficial effects of this utility model of a truss-type single-sided hole-free formwork installation device are as follows: This hole-free formwork installation device includes embedded parts, transverse pressure beams, and multiple frame bodies. All frame bodies are arranged in parallel, with formwork installation beams on the sides of each frame body. Inclined support beams are also provided within each frame body. The transverse pressure beams pass through all frame bodies and are supported on the inclined support beams. One end of the embedded part is fixed to the pre-cast wall or floor slab, and the other end passes through the transverse pressure beam. Fasteners for tightening the transverse pressure beams are provided on the embedded parts, thereby vertically fixing the formwork installation beams on the sides of the frame bodies to the side of the pre-cast wall. Formwork can be installed on the formwork installation beams, ensuring the formwork is vertically and tightly against the side of the pre-cast wall, thus forming a pouring area between the formwork and the foundation pit retaining wall for pouring the subsequent wall. This truss-type single-sided hole-free formwork installation device can fix large-sized formwork using parallel-arranged formwork installation beams, and no holes need to be drilled during formwork installation. This improves formwork utilization, reduces concrete leakage points, improves project quality, and increases construction speed. This formwork installation device is particularly suitable for construction scenarios where concrete side walls of underground buildings are being poured and there are no conditions for double-sided formwork, and it has broad application prospects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation result of a truss-type single-sided hole-free template installation device according to an embodiment of this utility model.

[0019] Figure 2 This is a schematic diagram of the connection structure between the embedded parts and the frame of a truss-type single-sided hole-free template installation device according to an embodiment of this utility model.

[0020] Figure 3 This is a schematic diagram of the template connection structure of a truss-type single-sided hole-free template installation device according to an embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram of the embedded part of a truss-type single-sided hole-free template installation device according to this utility model.

[0022] Figure 5 This is a schematic diagram of an extended structure of a truss-type single-sided hole-free template installation device according to an embodiment of this utility model.

[0023] Figure 6 yes Figure 5 Right view of the extended structure of the truss-type single-sided hole-free formwork installation device.

[0024] In the above diagram: 1-Frame structure, 11-Formwork installation beam, 12-Bottom beam, 13-Upper connecting beam, 14-External support beam, 15-Extension connecting seat, 16-Diagonal reinforcing beam, 2-Diagonal support beam, 3-Extension frame, 31-Extension installation beam, 32-Diagonal brace, 4-Horizontal pressure beam, 5-Foot bolt, 51-Connecting bolt sleeve, 52-External connecting rod, 53-Fastener, 6-Pre-cast wall, 61-Floor, 62-Foundation pit retaining wall, 7-Formwork, 71-Horizontal keel, 72-Vertical keel, 8-Post-cast wall. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0026] Please refer to Figures 1 to 6 This utility model discloses a truss-type single-sided hole-free template installation device, which is used to pour a subsequent wall 8 on top of a pre-poured wall 6. One side of the pre-poured wall 6 is a foundation pit retaining wall 62, and the other side of the pre-poured wall 6 is a floor slab 61.

[0027] The template installation device includes embedded parts, transverse pressure beams 4, and multiple frame bodies 1.

[0028] The frame 1 includes a bottom beam 12, a formwork installation beam 11, an upper connecting beam 13, and an outer support beam 14. The bottom beam 12, the formwork installation beam 11, the upper connecting beam 13, and the outer support beam 14 are connected end to end to form a frame structure, wherein the formwork installation beam 11 is perpendicular to the bottom beam 12; a support block is provided below the bottom beam 12, and the bottom beam 12 is supported on the floor 61 by the support block.

[0029] The frame 1 also includes a diagonal support beam 2, with both ends of the diagonal support beam 2 fixed to the bottom beam 12 and the template installation beam 1, respectively. The diagonal support beam 2 is inclined relative to the bottom beam 12 and the template installation beam 11. All frame bodies 1 are arranged in parallel, and diagonal braces 32 are provided between adjacent frame bodies 1, connecting all the parallel frame bodies 1 into a whole. The transverse pressure beam 4 passes through all frame bodies 1 and is supported on the diagonal support beam 2, and the transverse pressure beam 4 is perpendicular to the frame body 1.

[0030] In this embodiment, there are multiple embedded parts. One end of each embedded part is fixed inside the pre-cast wall 6 or floor slab, and the other end extends out of the pre-cast wall 6 and passes through the transverse pressure beam 4. The end of the embedded part extending out of the pre-cast wall 6 is also equipped with a fastener 53, which is connected to the embedded part and presses against the transverse pressure beam 4. The transverse pressure beam 4 presses against the inclined support beam 2, preventing the frame 1 from moving outwards from the pre-cast wall 6. The template 7 to be installed is fixed to the outer surface of the template installation beam 11. This allows the template 7 to be vertically attached to the side of the pre-cast wall, thereby forming a pouring area between the template and the foundation pit retaining wall for pouring the subsequent wall 8.

[0031] This truss-type single-sided, hole-free formwork installation device can fix large-sized formwork 7 through parallel-arranged formwork installation beams 11, and the formwork 7 does not require drilling during installation. This improves the utilization rate of the formwork 7, reduces concrete leakage points, improves project quality, and increases construction speed. This formwork installation device is particularly suitable for construction scenarios where concrete sidewalls of underground buildings are being poured and double-sided formwork is not feasible.

[0032] In a preferred embodiment, a support block is also provided below the bottom beam 12, and the bottom beam 12 is supported on the floor by the support block. The bottom beam 12 is provided with a height-adjusting threaded hole, and a height-adjusting screw is provided in the height-adjusting threaded hole. The top of the support block is connected to the lower end of the height-adjusting screw. The height-adjusting screw can adjust the installation height of the frame body 1, so that the installation height of the frame body 1 can match the pre-embedded position of the embedded part, thereby ensuring that the embedded part can pass through the transverse pressure beam 4.

[0033] In a preferred embodiment, the installation device further includes a keel frame fixed to the outside of the frame body 1. The keel frame includes multiple horizontal keels 71 and multiple vertical keels 72. The horizontal keels 71 are fixed to the outside of the template installation beam 11 and to the template installation beam 11. All horizontal keels 71 are perpendicular to the template installation beam 11 and are arranged vertically relative to each other. The vertical keels 72 are located outside the horizontal keels 71. All vertical keels 72 are perpendicular to the horizontal keels 71 and are arranged side by side. The vertical keels 72 are fixed to the horizontal keels 71. The template 7 to be installed is fixed to the vertical keels 72 by screws and washers.

[0034] In a preferred embodiment, the embedded component includes a base bolt 5, a connecting sleeve 51, and an external connecting rod 52. One end of the base bolt 5 is embedded in the pre-cast wall 6 or floor 61, and the other end of the base bolt 5 is coaxially connected to one end of the external connecting rod 52 through the connecting sleeve 51. The other end of the external connecting rod 52 passes through the transverse pressure beam 4. Both ends of the external connecting rod 52 are provided with connecting threads, and a fastener 53 is threaded onto the external connecting rod 52. The fastener 53 is a wing nut, and the external connecting rod 52 is perpendicular to the transverse pressure beam 4, which is an I-beam.

[0035] In a preferred embodiment, the frame body 1 is further provided with an oblique reinforcing beam 16, one end of which is connected to the outer support beam 14. The oblique reinforcing beam 16 is used to strengthen the structural strength of the frame body 1.

[0036] In a preferred embodiment, the top of the frame body 1 is further provided with an extension connecting seat 15, which is used to connect the extension frame 3. The frame body 1 is a right-angled trapezoidal frame. The side of the extension frame 3 is provided with an extension installation beam 31. When the extension frame 3 is installed, it is fixed to the extension connecting seat 15 by bolts. The extension installation beam 31 is connected above the template installation beam 11 and is coaxially arranged with the template installation beam 11. The extension installation beam 31 can extend the length of the template installation beam 11, thereby increasing the installation height of the template 7 and expanding the pouring area of ​​the poured wall 8 after pouring.

[0037] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0038] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A truss-type single-sided hole-free formwork installation device, characterized in that, Includes embedded parts, transverse pressure beams, and multiple frame structures; The frame includes a bottom beam, a formwork installation beam, an upper connecting beam, and an outer support beam. The bottom beam, the formwork installation beam, the upper connecting beam, and the outer support beam are connected end to end to form a frame structure. The formwork installation beam is perpendicular to the bottom beam. The frame also includes inclined support beams, with both ends of the inclined support beams fixed to the bottom beam and the formwork installation beam, respectively. All frame members are arranged in parallel, and the transverse pressure beams pass through all frame members and are supported on the inclined support beams. One end of the embedded part is embedded in the pre-cast wall or floor slab, and the other end extends out of the pre-cast wall and passes through the transverse pressure beam. The end of the embedded part is also provided with a fastener, which is connected to the embedded part and presses against the transverse pressure beam. The template to be installed is fixed to the template installation beam.

2. The truss-type single-sided hole-free template installation device according to claim 1, characterized in that, A support block is also provided below the bottom beam, and the bottom beam is supported on the floor by the support block.

3. The truss-type single-sided hole-free template installation device according to claim 2, characterized in that, The bottom beam is provided with a height adjustment threaded hole, and a height adjustment screw is provided in the height adjustment threaded hole. The top of the support block is connected to the lower end of the height adjustment screw.

4. The truss-type single-sided hole-free template installation device according to claim 1, characterized in that, The template installation beam is also provided with multiple horizontal keels on its outer side. All horizontal keels are perpendicular to the template installation beam and are arranged vertically relative to each other. The horizontal keels are fixed to the template installation beam.

5. A truss-type single-sided hole-free template installation device according to claim 4, characterized in that, The outer side of the horizontal keel is also provided with multiple vertical keels. All vertical keels are perpendicular to the horizontal keel and are arranged side by side. The vertical keels are fixed to the horizontal keel, and the template to be installed is fixed to the vertical keel.

6. The truss-type single-sided hole-free template installation device according to claim 1, characterized in that, The embedded parts include a foot bolt, a connecting sleeve, and an external connecting rod; one end of the foot bolt is embedded in the pre-cast wall or floor, and the other end is coaxially connected to one end of the external connecting rod through the connecting sleeve, and the other end of the external connecting rod passes through the transverse pressure beam.

7. A truss-type single-sided hole-free formwork installation device according to claim 6, characterized in that, Both ends of the outer connecting rod are provided with connecting threads, and the fastener is threadedly connected to the outer connecting rod.

8. A truss-type single-sided hole-free formwork installation device according to claim 7, characterized in that, The fastener is a wing nut.

9. A truss-type single-sided hole-free formwork installation device according to claim 1, characterized in that, The frame also includes a diagonal reinforcing beam, one end of which is connected to the outer support beam and the other end to the bottom beam.

10. A truss-type single-sided hole-free template installation device according to claim 1, characterized in that, The transverse pressure beam is an I-beam.