Cast-in-place detachable back ridge template structure of bearing platform

By introducing a disassembly and extension mechanism into the cast-in-place detachable back rib formwork structure of the foundation, the problems of rapid demolding and formwork size adjustment are solved, improving construction efficiency and practicality.

CN224227834UActive Publication Date: 2026-05-12CHINA RAILWAY NO 5 ENGINEERING GROUP CO LTD GUIZHOU SUBSIDIARY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY NO 5 ENGINEERING GROUP CO LTD GUIZHOU SUBSIDIARY
Filing Date
2025-05-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing cast-in-place detachable back rib formwork structure for foundations cannot be quickly demolded after casting, resulting in high labor consumption, low work efficiency, and the inability to adjust the formwork size according to actual conditions, thus reducing its practicality.

Method used

A template structure including a disassembly and assembly mechanism and an extension mechanism was designed. The disassembly and assembly mechanism enables quick disassembly and assembly through connecting plates, mounting bolts and nuts, while the extension mechanism adjusts the template size through extension plates, T-slots and expansion bolts.

Benefits of technology

It enables rapid assembly, disassembly, and size adjustment of templates, improving work efficiency and practicality, reducing manpower consumption, and adapting to different construction needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bearing platform cast-in-place detachable back ridge template structure, which belongs to the technical field of building construction and comprises a lower layer template, dismounting mechanisms are arranged on two sides of the lower layer template, a plate body is arranged on one side of each dismounting mechanism, and an extension mechanism is arranged on one side, far away from each dismounting mechanism, of the side surface of the plate body. The lower-layer template is arranged on the lower-layer template, a fixing frame is arranged on the outer side of the lower-layer template, an anchor rod is arranged at the bottom of the fixing frame, and a back ridge plate is arranged on one side, close to the fixing frame, of the side face of the lower-layer template. According to the lower-layer formwork, the lower-layer formwork is arranged on the lower-layer formwork, two mounting bolts are inserted into the positioning holes, the nuts are tightened through a machine, the four corners of the lower-layer formwork are fixed, pouring operation can be conducted, during demolding, the lower-layer formwork and the formwork body can be rapidly separated by unscrewing the nuts, rapid demolding can be achieved through flexible connection between the two connecting pieces, and working efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a detachable back rib formwork structure for cast-in-place foundations. Background Technology

[0002] A pile cap is a foundation platform built on pile foundations, typically constructed of reinforced concrete. It serves to transfer the load from the pier to the piles. The design of all types of pile caps must include calculations for local compressive stress at the pile top, as well as calculations for the pile cap's bending and shear strength. When constructing large-volume concrete pile caps, effectively implementing standardized formwork reinforcement measures is crucial to ensuring the construction quality and on-site safety.

[0003] The existing technology of cast-in-place detachable back rib formwork structure for foundation can quickly construct the foundation and facilitate workers to model it. However, it cannot be quickly demolded after casting, resulting in high manpower consumption and low work efficiency. Moreover, the casting model is pre-customized and cannot be finely adjusted according to the actual situation, which greatly reduces its practicality. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a detachable back-rib formwork structure for cast-in-place foundations, featuring quick assembly and disassembly of the formwork and adjustable formwork size.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cast-in-place detachable back rib formwork structure for a foundation, comprising a lower formwork, wherein disassembly and assembly mechanisms are provided on both sides of the lower formwork, a plate is provided on one side of the disassembly and assembly mechanism, an extension mechanism is provided on the side of the plate away from the disassembly and assembly mechanism, a fixing frame is provided on the outer side of the lower formwork, an anchor rod is provided at the bottom of the fixing frame, a back rib plate is provided on the side of the lower formwork near the fixing frame, and a diagonal tie rod is provided on the top of the lower formwork.

[0006] Preferably, the disassembly and assembly mechanism includes a connecting piece, a positioning hole, a mounting bolt, a nut, and a reinforcing component. One side of the connecting piece is fixedly connected to the lower template. A positioning hole is provided on the outer side of the connecting piece. A mounting bolt is provided on the inner side of the positioning hole. A nut is provided on the outer side of the mounting bolt. A reinforcing component is provided on the side of the lower template near the fixing frame.

[0007] Preferably, the reinforcing component includes a round hole, a long bolt, and a nut, wherein a round hole is provided at the upper outer side of the lower template, a long bolt is provided on the inner side of the round hole, and a nut is provided at the other end of the long bolt.

[0008] Preferably, both the lower template and the plate body are provided with partitions on the side below the long bolts.

[0009] Preferably, the extension mechanism includes an extension plate, a T-slot, a T-plate, and a threaded hole, wherein a T-slot is provided on one side of the extension plate, a T-plate is provided on the side of the plate body near the T-slot, and a threaded hole is provided on the top of the T-plate.

[0010] Preferably, an expansion sleeve is provided inside the threaded hole, and an expansion bolt is provided inside the expansion sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model is equipped with a disassembly and assembly mechanism. There are two connecting pieces in a set, which are respectively connected to the lower template and the plate. In use, before pouring, the two connecting pieces are aligned, and then two mounting bolts are inserted into the positioning holes. Then, the nuts are tightened by machine to fix the four corners of the lower template, and the pouring operation can be carried out. When demolding, the nuts are unscrewed to quickly separate the lower template and the plate. The reinforcement component enhances the connection between the lower templates. Through the flexible connection between the two connecting pieces, quick demolding can be achieved, which improves work efficiency.

[0013] 2. This utility model is equipped with an extension mechanism. T-slots and T-plates are respectively provided on both sides of the extension plate, so that the extension plates can be connected to each other. When it is necessary to adjust the size of the template according to the actual situation on site, the extension plate can be removed from or installed on the T-slot to change the size of the template. After the template size is appropriate, the expansion sleeve and expansion bolt are inserted into the threaded hole to lock the T-plate and prevent the extension plate from slipping. By increasing or decreasing the number of extension plates, the size of the template can be adjusted to improve its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front view structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the reinforcement component of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the extension mechanism of this utility model;

[0019] In the diagram: 1. Lower template; 2. Panel; 3. Assembly / disassembly mechanism; 31. Connecting piece; 32. Positioning hole; 33. Mounting bolt; 34. Nut; 35. Reinforcing component; 351. Round hole; 352. Long bolt; 353. Nut; 36. Partition plate; 4. Fixing frame; 5. Anchor bolt; 6. Extension mechanism; 61. Extension plate; 62. T-slot; 63. T-plate; 64. Threaded hole; 65. Expansion sleeve; 66. Expansion bolt; 7. Diagonal tie rod; 8. Back rib plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figure 1-5 The present invention provides the following technical solution: a cast-in-place detachable back rib formwork structure for a foundation, comprising a lower formwork 1, a disassembly and assembly mechanism 3 on both sides of the lower formwork 1, a plate 2 on one side of the disassembly and assembly mechanism 3, an extension mechanism 6 on the side of the plate 2 away from the disassembly and assembly mechanism 3, a fixing frame 4 on the outer side of the lower formwork 1, an anchor rod 5 at the bottom of the fixing frame 4, a back rib plate 8 on the side of the lower formwork 1 near the fixing frame 4, and a diagonal tie rod 7 on the top of the lower formwork 1.

[0023] Specifically, the disassembly and assembly mechanism 3 includes a connecting piece 31, a positioning hole 32, a mounting bolt 33, a nut 34, and a reinforcing component 35. One side of the connecting piece 31 is fixedly connected to the lower template 1. The outer side of the connecting piece 31 is provided with a positioning hole 32. The inner side of the positioning hole 32 is provided with a mounting bolt 33. The outer side of the mounting bolt 33 is provided with a nut 34. The side of the lower template 1 near the fixing frame 4 is provided with the reinforcing component 35.

[0024] By adopting the above technical solution, there are two connecting pieces 31 in a set, which are respectively connected to the lower template 1 and the plate 2. When in use, before pouring, the two connecting pieces 31 are aligned, and then two mounting bolts 33 are inserted into the positioning hole 32. Then, the nuts 34 are tightened by machine to fix the four corners of the lower template 1, and the pouring operation can be carried out. When demolding, the nuts 34 are unscrewed to quickly separate the lower template 1 and the plate 2. The reinforcing component 35 strengthens the connection between the lower templates 1.

[0025] Specifically, the reinforcement component 35 includes a round hole 351, a long bolt 352, and a nut 353. The upper outer side of the lower template 1 is provided with a round hole 351, the inner side of the round hole 351 is provided with a long bolt 352, and the other end of the long bolt 352 is provided with a nut 353.

[0026] By adopting the above technical solution, two round holes 351 are opened in each of the two lower templates 1. When in use, the long bolts 352 are inserted into the two round holes 351 and the nuts 353 are tightened to reinforce the two lower templates 1.

[0027] Specifically, both the lower template 1 and the plate 2 are provided with partitions 36 on the side below the long bolts 352.

[0028] By adopting the above technical solution, the partition 36 prevents too much concrete from flowing out of the gaps during pouring.

[0029] In this embodiment, the space enclosed by the lower template 1 and the plate 2 can be used for pouring. The diagonal tie rod 7 can strengthen the connection between the lower template 1 and the plate 2. The fixing frame 4 and the anchor rod 5 can fix the lower template 1 to the ground. There are two connecting pieces 31 in a set, which are connected to the lower template 1 and the plate 2 respectively. Before pouring, the two connecting pieces 31 are aligned, and then two mounting bolts 33 are inserted into the positioning hole 32. Then, the nuts 34 are tightened by machine to fix the four corners of the lower template 1. The pouring operation can then be carried out. When demolding, the nuts 34 are unscrewed to quickly separate the lower template 1 and the plate 2. Both lower templates 1 have two round holes 351. When using, the long bolts 352 are inserted into the two round holes 351 and the nuts 353 are tightened to strengthen the two lower templates 1. The partition plate 36 prevents too much concrete from flowing out of the gaps during pouring. Through the flexible connection between the two connecting pieces 31, quick demolding can be achieved, which improves work efficiency.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the extension mechanism 6 includes an extension plate 61, a T-shaped groove 62, a T-shaped plate 63 and a threaded hole 64. The extension plate 61 has a T-shaped groove 62 on one side, and the plate body 2 has a T-shaped plate 63 on the side near the T-shaped groove 62. The top of the T-shaped plate 63 has a threaded hole 64.

[0032] By adopting the above technical solution, T-slots 62 and T-plates 63 are respectively provided on both sides of the extension plate 61, so that the extension plates 61 can be connected to each other. When it is necessary to adjust the size of the template according to the actual situation on site, the extension plate 61 can be removed from the T-slot 62 or installed to change the size of the template.

[0033] Specifically, an expansion sleeve 65 is provided inside the threaded hole 64, and an expansion bolt 66 is provided inside the expansion sleeve 65.

[0034] By adopting the above technical solution, after the template size is appropriate, the expansion sleeve 65 and expansion bolt 66 are inserted into the threaded hole 64 to lock the T-shaped plate 63 and prevent the extension plate 61 from slipping off.

[0035] In this embodiment, T-slots 62 and T-plates 63 are respectively provided on both sides of the extension plate 61, so that the extension plates 61 can be connected to each other. When it is necessary to adjust the size of the template according to the actual situation on site, the extension plate 61 can be removed from or installed from the T-slot 62 to change the size of the template. After the template size is appropriate, the expansion sleeve 65 and expansion bolt 66 are inserted into the threaded hole 64 to lock the T-plate 63 and prevent the extension plate 61 from slipping. By increasing or decreasing the number of extension plates 61, the size of the template can be adjusted, improving practicality.

[0036] The structure and operating principle of the lower template 1, fixing frame 4, anchor rod 5, diagonal tie rod 7 and back rib plate 8 in this utility model have been disclosed in a pedestal-type independent foundation template support system disclosed in Chinese patent application number CN202421474206.3.

[0037] The working principle and usage process of this utility model are as follows: When using this utility model, the space enclosed by the lower template 1 and the plate 2 can be used for pouring. The diagonal tie rod 7 can reinforce the connection between the lower template 1 and the plate 2. The fixing frame 4 and anchor rod 5 can fix the lower template 1 to the ground. There are two connecting pieces 31 in a set, which are respectively connected to the lower template 1 and the plate 2. Before pouring, align the two connecting pieces 31, then insert two mounting bolts 33 into the positioning holes 32, and then tighten the nuts 34 using a machine to fix all four corners of the lower template 1. Pouring can then proceed. For demolding, unscrewing the nuts 34 allows for quick separation of the lower template 1 and the plate 2. Each of the two lower templates 1 has two round holes 351. During use, long bolts 352 are inserted into the two holes. By tightening the nuts 353 into the round holes 351, the two lower formwork 1 can be reinforced. The partition plate 36 prevents too much concrete from flowing out of the gaps during pouring. The flexible connection between the two connecting plates 31 enables quick demolding and improves work efficiency. T-slots 62 and T-plates 63 are respectively provided on both sides of the extension plate 61, so that the extension plates 61 can be connected to each other. When the size of the formwork needs to be adjusted according to the actual situation on site, the extension plate 61 can be removed from or installed on the T-slot 62 to change the size of the formwork. After the formwork size is appropriate, the expansion sleeve 65 and expansion bolt 66 are inserted into the threaded hole 64 to lock the T-plate 63 and prevent the extension plate 61 from slipping. By increasing or decreasing the number of extension plates 61, the size of the formwork can be adjusted to improve practicality.

[0038] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cast-in-place detachable back-rib formwork structure for a foundation, comprising a lower formwork (1), characterized in that: The lower template (1) is provided with disassembly and assembly mechanisms (3) on both sides. A plate (2) is provided on one side of the disassembly and assembly mechanism (3). An extension mechanism (6) is provided on the side of the plate (2) away from the disassembly and assembly mechanism (3). A fixing frame (4) is provided on the outside of the lower template (1). An anchor rod (5) is provided at the bottom of the fixing frame (4). A back rib plate (8) is provided on the side of the lower template (1) close to the fixing frame (4). A diagonal tie rod (7) is provided on the top of the lower template (1).

2. The cast-in-place detachable back rib formwork structure for a foundation according to claim 1, characterized in that: The disassembly and assembly mechanism (3) includes a connecting piece (31), a positioning hole (32), a mounting bolt (33), a nut (34), and a reinforcing component (35). One side of the connecting piece (31) is fixedly connected to the lower template (1). The outer side of the connecting piece (31) is provided with a positioning hole (32). The inner side of the positioning hole (32) is provided with a mounting bolt (33). The outer side of the mounting bolt (33) is provided with a nut (34). The side of the lower template (1) near the fixing frame (4) is provided with a reinforcing component (35).

3. The cast-in-place detachable back rib formwork structure for a foundation according to claim 2, characterized in that: The reinforcement component (35) includes a round hole (351), a long bolt (352) and a nut (353). The upper outer side of the lower template (1) is provided with a round hole (351), the inner side of the round hole (351) is provided with a long bolt (352), and the other end of the long bolt (352) is provided with a nut (353).

4. The cast-in-place detachable back rib formwork structure for a foundation according to claim 3, characterized in that: The lower template (1) and the plate (2) are both provided with partitions (36) on the side below the long bolt (352).

5. The cast-in-place detachable back rib formwork structure for a foundation according to claim 1, characterized in that: The extension mechanism (6) includes an extension plate (61), a T-slot (62), a T-plate (63), and a threaded hole (64). The extension plate (61) has a T-slot (62) on one side, and a T-plate (63) is provided on the side of the plate body (2) near the T-slot (62). The top of the T-plate (63) has a threaded hole (64).

6. A cast-in-place detachable back rib formwork structure for a foundation according to claim 5, characterized in that: An expansion sleeve (65) is provided inside the threaded hole (64), and an expansion bolt (66) is provided inside the expansion sleeve (65).