Combined outer wall bottom formwork reinforcing device
By adopting L-shaped plates and limit rail structures at the bottom of the shear wall formwork, combined with threaded rods and extrusion frames, the problem of unsolid fixation of the formwork is solved, the stability and rapid assembly of the formwork are achieved, and the cement leakage is prevented and construction quality is improved.
Patent Information
- Application Number
- CN202422003962.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing shear wall formwork is not firmly fixed at the bottom, resulting in the concrete being easily leaked and affecting the stress distribution of the shear wall.
The L-shaped plate and limit rail structure are adopted, and the formwork and baffle are connected through fixing holes and threaded rods. The limit plate and cross beam are combined. The fixing force is enhanced using extrusion frames and nuts to prevent the formwork from tilting and cement leakage.
Effectively prevent the formwork from tilting and cement leakage, improve the stability and rapid assembly efficiency of the formwork, and ensure the construction quality of the shear wall.
Smart Images

Figure CN223119527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shear wall formwork, in particular to a combined bottom formwork reinforcement device for an external wall. Background Technique
[0002] A shear wall is a wall in a building or structure that mainly bears the horizontal load and vertical load (gravity) caused by wind load or earthquake action, preventing the structure from shear (shearing) failure. It is also called a seismic wall and is generally made of reinforced concrete. It is divided into plane shear walls and tube shear walls. Plane shear walls are used in reinforced concrete frame structures, lift-slab structures, and flat slab floor systems. To increase the stiffness, strength, and anti-collapse ability of the structure, cast-in-place or precast reinforced concrete shear walls can be used in some parts.
[0003] According to a described combined bottom formwork reinforcement device for an external wall (the authorization announcement number is: CN218715065U), "A combined bottom formwork reinforcement device for an external wall includes a first shear wall formwork and a second shear wall formwork. The first shear wall formwork and the second shear wall formwork are connected by a plurality of tie bolts. A through groove is penetrated through the side wall of the first shear wall formwork. A single-headed screw is penetrated through the through groove. A fixing device is threadedly connected to the side wall of the single-headed screw. A connecting device is arranged at the other end of the single-headed screw. A pre-embedded groove is penetrated through the wall at the corresponding position, and a pre-embedded fixing device is arranged in the pre-embedded groove. The structure of the utility model is reasonably designed, and has the advantages of being able to reinforce the strength of the shear wall formwork and avoiding the occurrence of formwork swelling and leakage of the concrete below the shear wall formwork."
[0004] The existing shear wall formwork cannot fix the bottom end and quickly assemble the formwork, resulting in easy leakage of concrete from the bottom end and causing changes in the stress of the shear wall. Therefore, it is necessary to improve a combined bottom formwork reinforcement device for an external wall to solve the above problems. Content of the Utility Model
[0005] In view of this, the utility model provides a reinforcement structure at the expansion joint of the shear wall formwork to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.
[0006] The technical solution of the embodiment of the present utility model is realized as follows: A combined bottom formwork reinforcement device for an exterior wall, including an L-shaped plate, characterized in that: a plurality of fixing holes are provided on the outer wall of the L-shaped plate, and a first fixing threaded rod is threadedly connected inside the fixing holes. The L-shaped plate is fixedly connected with a formwork through the combination between the fixing holes and the first fixing threaded rod. A formwork is welded on one side of the formwork. A limiting rail is provided on the outer wall of the L-shaped plate, and a limiting plate is slidably connected inside the limiting rail. A plurality of cross beams are provided between the limiting plate and the baffle. A plurality of second fixing threaded rods are threadedly connected to the outer wall of the baffle. A square groove is provided at one end of the second fixing threaded rod, and a plurality of surrounding mounting holes are provided on the outer wall of the second fixing threaded rod.
[0007] Further preferably, the second fixing threaded rod is fixedly connected with a first extrusion frame and a second extrusion frame through the mounting holes and threaded pins respectively.
[0008] Further preferably, a plurality of tension rods are provided between the baffle and the formwork. Third extrusion frames are sleeved at both ends of the tension rods, and the outer walls of the third extrusion frames are in close contact with the outer wall of the limiting plate.
[0009] Further preferably, a plurality of first limiting grooves are provided on the outer wall of the limiting plate, and a first extrusion frame is provided inside the first limiting grooves. Extrusion nuts are provided between the middle parts of the first extrusion frame and the second extrusion frame and the outer wall of the second fixing threaded rod respectively.
[0010] Further preferably, a second limiting groove is provided on the outer wall of the cross beam, and a second extrusion frame is provided inside the second limiting groove.
[0011] Further preferably, a lifting hook is provided in the middle of the top end of the baffle.
[0012] Further preferably, the first extrusion frame is in close contact with one side of each of the two limiting plates respectively, and the second extrusion frame is in close contact with one side of each of the two cross beams respectively.
[0013] Due to the adoption of the above technical solution in the embodiment of the present utility model, it has the following advantages: In the present utility model
[0014] First, by using an L-shaped plate at the bottom end of the baffle, the bottom ends of the baffle and the formwork can be limited, effectively preventing the baffle and the cross plate from tilting, and effectively preventing the cement from breaking through the baffle and the formwork due to the excessive weight at the bottom end of the baffle during the pouring of cement, resulting in material leakage;
[0015] Second, by inserting the limiting plate into the limiting rail inside the L-shaped plate, it is convenient to improve the stability of the lower part of the mold.
[0016] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0018] Figure 1 It is the overall structure diagram of the present utility model;
[0019] Figure 2 It is the structure diagram of the L-shaped plate of the present utility model;
[0020] Figure 3 It is the schematic diagram of the limit plate of the present utility model;
[0021] Figure 4 It is the schematic diagram of the cross beam of the present utility model;
[0022] Figure 5 It is the schematic diagram of the second fixed threaded rod of the present utility model.
[0023] Reference numerals: 1, L-shaped plate; 2, first fixed threaded rod; 3, limit plate; 4, first limit groove; 5, limit rail; 6, fixing hole; 7, cross beam; 8, first extrusion frame; 9, second extrusion frame; 10, second fixed threaded rod; 11, mounting hole; 12, square groove; 13, second limit groove; 14, tension rod; 15, extrusion nut; 16, baffle; 17, template; 18, hanging buckle; 19, threaded pin; 20, third extrusion frame. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.
[0025] The following will describe the embodiments of the present utility model in detail with reference to the accompanying drawings. Embodiment
[0026] As Figures 1 - 5As shown in the figure, an embodiment of the utility model provides a combined formwork reinforcement device for the bottom of an exterior wall, including an L-shaped plate 1. A plurality of fixing holes 6 are formed in the outer wall of the L-shaped plate 1. A first fixing screw rod 2 is threadedly connected inside the fixing hole 6. A baffle 16 is fixedly connected between the L-shaped plate 1 and the first fixing screw rod 2 through the combination of the fixing hole 6. A formwork 17 is welded to one side of the baffle 16. A limiting rail 5 is formed in the outer wall of the L-shaped plate 1. A limiting plate 3 is slidably connected inside the limiting rail 5. A plurality of cross beams 7 are arranged between the limiting plate 3 and the baffle 16. A plurality of second fixing screw rods 10 are threadedly connected to the outer wall of the baffle 16. A square groove 12 is formed at one end of the second fixing screw rod 10. A plurality of surrounding mounting holes 11 are formed in the outer wall of the second fixing screw rod 10. An L-shaped plate 1 is arranged at the bottom end of the baffle 16, which can limit the bottom ends of the baffle 16 and the formwork 17, effectively preventing the baffle 16 and the formwork 17 from tilting, and effectively preventing the bottom end of the baffle 16 from being overweight due to the cement infusion, resulting in the cement breaking through the baffle 16 and the formwork 17 and causing material leakage.
[0027] In one embodiment, specifically, the second fixing screw rod 10 is fixedly connected to a first extrusion frame 8 and a second extrusion frame 9 through the mounting hole 11 and a threaded pin 19 respectively.
[0028] In one embodiment, specifically, a plurality of tension rods 14 are arranged between the baffle 16 and the formwork 17. Third extrusion frames 20 are sleeved at both ends of the tension rod 14. The outer wall of the third extrusion frame 20 is in close contact with the outer wall of the limiting plate 3.
[0029] In one embodiment, specifically, a plurality of first limiting grooves 4 are formed in the outer wall of the limiting plate 3. The first extrusion frame 8 is arranged inside the first limiting groove 4. Extrusion nuts 15 are arranged between the middle parts of the first extrusion frame 8 and the second extrusion frame 9 and the outer wall of the second fixing screw rod 10 respectively.
[0030] In one embodiment, specifically, a second limiting groove 13 is formed in the outer wall of the cross beam 7. The second extrusion frame 9 is arranged inside the second limiting groove 13.
[0031] In one embodiment, specifically, a lifting buckle 18 is arranged in the middle of the top end of the baffle 16.
[0032] In one embodiment, specifically, the first extrusion frame 8 is in close contact with one side of the two limiting plates 3 respectively, and the second extrusion frame 9 is in close contact with one side of the two cross beams 7 respectively.
[0033] When the utility model works: by arranging an L-shaped plate 1 at the bottom end of the baffle 16, the bottom ends of the baffle 16 and the template 17 can be limited, effectively preventing the baffle 16 and the template 17 from tilting, and effectively preventing the cement from breaking through the baffle 16 and the template 17 due to the excessive weight at the bottom end of the baffle 16 during cement infusion, resulting in material leakage. The baffle 16 is installed and fixed by using a first fixed threaded rod 2, the template 17 is placed on one side of the baffle 16 and fixedly welded together. A second fixed threaded rod 10 is threadedly connected to one side of the baffle 16, and the first extrusion frame 8 and the second extrusion frame 9 are respectively fixed to the limiting plate 3 and the cross beam 7, and an extrusion nut 15 is used for extrusion to improve the fixing strength and quickly splice the bottom formwork 17 of the exterior wall. By inserting the limiting plate 3 into the limiting rail 5 inside the L-shaped plate 1, it is convenient to improve the stability of the lower part of the mold. And by adjusting the distance between the two bottom formworks 17 of the exterior wall according to the width of the bottom formwork 17 of the exterior wall and using a tension rod 14 to penetrate, a third extrusion frame 20 is arranged on the outer wall of the tension rod 14 to facilitate the limiting of the tension rod. By arranging a square groove at one end of the second fixed threaded rod 10, it is convenient to use electric tools to install the bottom formwork 17 of the exterior wall. And by arranging a plurality of mounting holes 11 on the outer wall of the second fixed threaded rod 10 and using a threaded pin 19 to install and fix the first extrusion frame 8 and the second extrusion frame 9, welding can be reduced and subsequent disassembly is convenient. The spliced bottom formwork 17 of the exterior wall is lifted along the hanging buckle 18 at the top and placed at the position of the shear wall to be poured.
[0034] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.
Claims
1. A combined formwork reinforcement device for the bottom of an exterior wall, comprising an L-shaped plate (1), characterized in that: A plurality of fixing holes (6) are formed in the outer wall of the L-shaped plate (1). A first fixing screw rod (2) is threadedly connected inside the fixing hole (6). The L-shaped plate (1) is fixedly connected with a baffle plate (16) through the combination of the fixing hole (6) and the first fixing screw rod (2). A template (17) is welded on one side of the baffle plate (16). A limiting rail (5) is formed in the outer wall of the L-shaped plate (1). A limiting plate (3) is slidably connected inside the limiting rail (5). A plurality of cross beams (7) are arranged between the limiting plate (3) and the baffle plate (16). A plurality of second fixing screw rods (10) are threadedly connected to the outer wall of the baffle plate (16). A square groove (12) is formed at one end of the second fixing screw rod (10). A plurality of surrounding mounting holes (11) are formed in the outer wall of the second fixing screw rod (10).
2. The combined formwork reinforcement device for the bottom of the exterior wall according to claim 1, characterized in that: The second fixing screw rod (10) is fixedly connected with a first pressing frame (8) and a second pressing frame (9) respectively through the mounting hole (11) and a threaded pin (19).
3. The combined bottom formwork reinforcement device for exterior walls according to claim 1, characterized in that: A plurality of tension rods (14) are arranged between the baffle plate (16) and the template (17). Third pressing frames (20) are sleeved at both ends of the tension rod (14). The outer wall of the third pressing frame (20) is in close contact with the outer wall of the limiting plate (3).
4. A combined formwork reinforcement device for the bottom of an exterior wall according to claim 1, characterized in that: A plurality of first limiting grooves (4) are formed in the outer wall of the limiting plate (3). The first pressing frame (8) is arranged inside the first limiting groove (4). Extrusion nuts (15) are arranged between the middle parts of the first pressing frame (8) and the second pressing frame (9) and the outer wall of the second fixing screw rod (10) respectively.
5. The combined bottom formwork reinforcement device for exterior walls according to claim 1, characterized in that: A second limiting groove (13) is formed in the outer wall of the cross beam (7). The second pressing frame (9) is arranged inside the second limiting groove (13).
6. The combined external wall bottom formwork reinforcement device according to claim 1, characterized in that: A hanging buckle (18) is arranged in the middle of the top end of the baffle plate (16).
7. A combined formwork reinforcement device for the bottom of an exterior wall according to claim 4, characterized in that: The first pressing frame (8) is in close contact with one side of the two limiting plates (3) respectively. The second pressing frame (9) is in close contact with one side of the two cross beams (7) respectively.
Citation Information
Patent Citations
Combined outer wall bottom formwork reinforcing device
CN218715065U