Protective device for protective layer of reinforcement cage
By using triangular clamping plates as rigid pads during the construction of pier columns, combined with disassembly auxiliary mechanisms, the problem of concrete pads being broken during the formwork adjustment process was solved, and the qualification rate and extrusion resistance of the steel protective layer were improved.
Patent Information
- Application Number
- CN202420834895.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the pier column construction, the concrete pads are easily extruded and broken during the formwork adjustment process, resulting in a low pass rate of the steel bar protective layer.
A steel cage protective layer protection device is provided, including a rigid backing plate (triangular clamping plate) and a disassembly auxiliary mechanism. Rigid pads are installed in advance through removable fixings of steel bars, and then removed after the formwork is installed, and the concrete pads are replaced again.
It effectively solves the problem of concrete pads being broken during the formwork adjustment process, improves the qualification rate of the steel protective layer, and enhances the extrusion resistance of the protective layer.
Smart Images

Figure CN222375809U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, and more specifically, to a steel cage protective layer protection device. Background Art
[0002] In the field of building construction, foundation pit design and construction are the most common construction processes. Among them, pile row structure is one of the common forms of foundation pit support structure, and pier column construction is an indispensable part of pile row structure. The pier column is the basic structure of the building, so the quality requirements of the pier column are becoming more and more stringent, and the protection of the pier column steel bar protective layer is the key to ensure the quality of the pier column.
[0003] The protective measures for the steel bar protective layer of the pier column are basically to set up concrete pads between the inner side of the steel cage and the pier column formwork. The concrete pads have the function of bearing external forces and can enhance the ability of the structure to resist axial forces and bending moments; at the same time, they also maintain the durability of the structure, prevent the infiltration of moisture and water, and prevent the steel bars from rusting and expanding.
[0004] At present, concrete pads are used to protect the steel bar protective layer throughout the pier construction process. However, during the adjustment of the pier formwork, the concrete pads are easily squeezed and broken, resulting in problems such as a low qualified rate of the steel bar protective layer. Utility Model Content
[0005] In view of the above problems, the purpose of the utility model is to provide a steel cage protective layer protection device to solve the problem in the prior art that concrete pads are used to protect the steel protective layer throughout the pier construction process, and during the adjustment of the pier formwork, the concrete pads are easily squeezed and crushed, resulting in a low qualified rate of the steel protective layer.
[0006] The utility model provides a protective device for a steel cage protective layer, comprising a rigid pad and a disassembly auxiliary mechanism; wherein the rigid pad is a triangular clamping plate, a clamping interface is provided on the bottom edge of the triangular clamping plate, and removable steel bar fixing parts are provided on both sides of the bottom edge of the triangular clamping plate located at the clamping interface, and the top corner points of the triangular clamping plate abut against the template; the disassembly auxiliary mechanism comprises a rod member with one end fixed to the side edge of the triangular clamping plate, and the other end of the rod member is arranged on the outside of the steel cage.
[0007] In addition, a preferred structure is that the shape of the triangular clamping plate is an isosceles acute triangle.
[0008] In addition, a preferred structure is that the triangular clamping plate is arranged horizontally, and the inner side of the clamping interface is fitted and clamped on the vertical reinforcement of the steel cage.
[0009] In addition, a preferred structure is that the number of the triangular clamping plates is equal to the number of vertical bars of the steel cage; the triangular clamping plates are installed on each of the vertical bars; and the heights of the triangular clamping plates arranged on each of the vertical bars are equal.
[0010] In addition, a preferred structure is that the triangular clamping plate is clamped through the clamping interface at a position 1.2-2.2 m above the position where the concrete pad is fixed on the steel cage.
[0011] In addition, a preferred structure is that the triangular clamping plate is a triangular steel plate.
[0012] In addition, the preferred structure is that the thickness of the triangular steel plate is at least 2 cm.
[0013] In addition, a preferred structure is that the rod is a steel rod structure; and the rod is welded to the triangular steel plate.
[0014] In addition, a preferred structure is that the detachable steel bar fixing part is a binding wire; a first binding hole and a second binding hole are respectively arranged on both sides of the clamping interface of the triangular clamping plate; the binding wire is arranged on the outside of the steel cage, and both ends of the binding wire pass through the steel cage and are respectively fixedly connected to the first binding hole and the second binding hole.
[0015] In addition, a preferred structure is that a soft anti-slip protective layer is provided on the inner side of the card interface.
[0016] From the above technical scheme, it can be seen that the steel cage protective layer protection device provided by the utility model installs a rigid pad on the steel cage in advance by using a detachable steel bar fixing piece. After the pier column formwork is installed, the rigid pad is removed from the steel cage by the detachable steel bar fixing piece, and the concrete pad is replaced. Since the rigid pad is a triangular clip-on plate structure, the top corner point of the triangular clip-on plate abuts against the formwork of the pier column, which can greatly improve its extrusion resistance. Therefore, the device temporarily replaces the concrete pad. When the pier column formwork is adjusted, it can effectively solve the problem of the concrete pad being squeezed and crushed by the formwork in the adjusted position, thereby affecting the protection effect of the steel bar protective layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other purposes and results of the present invention will become more clear and easy to understand. In the accompanying drawings:
[0018] Figure 1 It is a structural schematic diagram of a steel cage protective layer protection device according to an embodiment of the utility model;
[0019] Figure 2It is a schematic diagram of the top view of the structure of the steel cage protective layer protection device in use according to the embodiment of the utility model;
[0020] Figure 3 It is a schematic diagram of the inner front view structure of the steel cage protective layer protection device in use according to an embodiment of the utility model.
[0021] In the attached drawings, 1-triangular clamping plate, 11-clamping interface, 12-first binding hole, 13-second binding hole, 2-rod, 3-rebar cage, 31-vertical reinforcement, 32-transverse reinforcement.
[0022] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION
[0023] In response to the above-mentioned problem, in the prior art, concrete pads are used to protect the steel bar protective layer throughout the pier construction process. During the adjustment of the pier formwork, the concrete pads are easily squeezed and crushed, resulting in a low qualified rate of the steel bar protective layer. A steel cage protective layer protection device is proposed.
[0024] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0025] In order to illustrate the steel cage protective layer protection device provided by the utility model, Figure 1 The structure of the steel cage protective layer protection device according to the embodiment of the utility model is shown; Figure 2 The top view of the steel cage protective layer protection device in use according to the embodiment of the utility model is shown; Figure 3 The inner front view structure of the steel cage protective layer protection device according to the embodiment of the utility model in the use state is shown.
[0026] like Figures 1 to 3 As shown together, the steel cage protective layer protection device provided by the utility model includes a rigid pad and a disassembly auxiliary mechanism; wherein, the rigid pad is a triangular clamping plate 1, a clamping interface 11 is opened on the bottom edge of the triangular clamping plate 1, and removable steel bar fixing parts are arranged on both sides of the bottom edge of the triangular clamping plate 1 at the clamping interface 11, and the top corner points of the triangular clamping plate 1 are abutted against the template; the disassembly auxiliary mechanism includes a rod 2 fixed at one end to the side of the triangular clamping plate 1, and the other end of the rod 2 is arranged on the outside of the steel cage 3.
[0027] In the prior art, in order to protect the steel bar protective layer of the steel cage, a concrete pad is usually set between the steel cage and the formwork of the pier column, and the concrete pad is used to protect the steel bar protective layer throughout the whole process. However, when the formwork is installed, the position of the formwork needs to be adjusted. In this process, the concrete pad is easily broken due to the formwork squeezing the concrete pad, thereby affecting its protective effect on the steel bar protective layer, resulting in a low qualified rate of the steel bar protective layer.
[0028] In order to solve the technical problems existing in the above-mentioned prior art, the utility model provides a steel cage protective layer protection device which can temporarily replace the concrete pad to ensure the qualified rate of the steel bar protective layer.
[0029] By using detachable steel bar fixings to install the rigid pad on the steel cage 3 in advance, after the pier column formwork is installed, the rigid pad is removed from the steel cage 3 by the detachable steel bar fixings, and the concrete pad is replaced. Since the rigid pad is a triangular clip plate 1, the top corner of the triangular clip plate 1 abuts against the formwork of the pier column, which can greatly improve its extrusion resistance. Therefore, the device temporarily replaces the concrete pad. When the pier column formwork is adjusted, it can effectively solve the problem of the concrete pad being squeezed and crushed by the formwork in the adjusted position, thereby affecting the protection effect of the steel bar protective layer.
[0030] As a preferred solution of the present invention, the shape of the triangular clamping plate 1 is an isosceles acute triangle.
[0031] Designing the shape of the triangular clamping plate 1 to be an isosceles acute triangle can reduce the contact points between the triangular clamping plate 1 and the template, facilitating subsequent removal; on the other hand, it can make the structure more reasonable and save materials.
[0032] As a preferred solution of the utility model, the triangular clamping plate 1 is arranged horizontally, and the inner side of the clamping interface 11 is clamped on the vertical ribs 31 of the steel cage 3 .
[0033] It should be noted that the steel cage 3 includes vertical ribs 31 and transverse ribs 32 that are staggered. In order to make the triangular clamping plate 1 have better position control and pressure bearing capacity for the template, the triangular clamping plate 1 can be arranged horizontally, and the inner side of the clamping interface 11 is fitted and clamped on the vertical ribs 31 of the steel cage 3. Of course, if necessary, the triangular clamping plate 1 can also be installed on the transverse ribs 32 of the steel cage 3, and the utility model does not make any special limitation on this.
[0034] As a preferred solution of the utility model, the number of triangular clamping plates 1 is equal to the number of vertical bars 31 of the steel cage 3; a triangular clamping plate 1 is installed on each vertical bar 31; and the heights of the triangular clamping plates 1 arranged on each vertical bar 31 are equal.
[0035] The number of the triangular clamping plates 1 is at least two, and in order to make it bear better extrusion effect and more uniform force, it is preferably equal to the number of the vertical bars 31 of the steel cage 3, and multiple triangular clamping plates 1 are located on a cross section of the steel cage 3, that is, the heights are equal. Of course, the number of triangular clamping plates 1 can be adjusted according to actual needs, and the utility model does not make any special restrictions on this.
[0036] As a preferred solution of the utility model, the triangular clamping plate 1 is clamped on the steel cage 3 by the clamping interface 11 at a position 1.2-2.2 m above the position of the fixed concrete pad.
[0037] The position setting of the triangular clamping plate 1 facilitates the protection of the concrete pad. This position is a preferred position but is not limited to this position, and the present invention does not make any special limitation on this.
[0038] As a preferred solution of the present invention, the triangular clamping plate 1 is a triangular steel plate.
[0039] The triangular steel plate has a stronger extrusion resistance, is strong and durable, and can certainly be replaced by a triangular plate of other materials, such as a triangular iron plate, a triangular copper plate, etc., and the present invention does not make any special limitation on this.
[0040] As a preferred embodiment of the present invention, the thickness of the triangular steel plate is at least 2 cm.
[0041] The thickness of the triangular steel plate is preferably but not limited to 2 cm.
[0042] As a preferred solution of the utility model, the rod 2 is a steel rod structure; the rod 2 is welded to the triangular steel plate.
[0043] When the triangular clamping plate 1 is removed, the steel bar structure can be knocked outside the steel cage 3 to make the corner of the triangular clamping plate 1 abutting against the template deviate from the template, thereby facilitating the removal of the triangular clamping plate 1.
[0044] As a preferred solution of the utility model, the detachable steel bar fixing part is a binding wire; a first binding hole 12 and a second binding hole 13 are respectively arranged on both sides of the clamping interface 11 of the triangular clamping plate 1; the binding wire is arranged on the outside of the steel cage 3, and both ends of the binding wire pass through the steel cage 3 and are respectively fixedly connected to the first binding hole 12 and the second binding hole 13.
[0045] It should be noted that the detachable steel bar fixing member in the present invention may also be replaced by other detachable fixing members, such as clamps, latches, etc., and the present invention does not make any special limitation on this.
[0046] As a preferred solution of the present invention, a soft anti-slip protective layer is provided on the inner side of the card interface 11 .
[0047] The anti-slip protective layer is a soft rubber layer, for example, and structures such as protrusions are arranged on the soft rubber layer to increase the friction between the card interface 11 and the steel bar, prevent it from slipping, and protect the surface of the steel bar.
[0048] It can be seen from the above specific implementation methods that the steel cage protective layer protection device provided by the utility model installs a rigid pad on the steel cage in advance by using a detachable steel bar fixing piece. After the pier column formwork is installed, the rigid pad is removed from the steel cage by the detachable steel bar fixing piece, and the concrete pad is replaced. Since the rigid pad is a triangular clip-on plate structure, the top corner points of the triangular clip-on plate abut against the formwork of the pier column, which can greatly improve its extrusion resistance. Therefore, the device temporarily replaces the concrete pad. When the pier column formwork is adjusted, it can effectively solve the problem of the concrete pad being squeezed and crushed by the formwork in the adjusted position, thereby affecting the protection effect of the steel bar protective layer.
[0049] As described above, the steel cage protective layer protection device proposed by the utility model is described in an exemplary manner with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the steel cage protective layer protection device proposed by the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the attached claims.
Claims
1. A steel cage protective layer protection device, characterized in that: It includes a rigid pad and a disassembly auxiliary mechanism; wherein, The rigid pad is a triangular clamping plate, a clamping interface is provided on the bottom side of the triangular clamping plate, detachable steel bar fixing parts are provided on both sides of the clamping interface on the bottom side of the triangular clamping plate, and the top corners of the triangular clamping plate are in contact with the template; The disassembly auxiliary mechanism comprises a rod member with one end fixed on the side of the triangular clamping plate, and the other end of the rod member is arranged on the outside of the steel cage.
2. The steel cage protective layer protection device according to claim 1 is characterized in that: The shape of the triangular clamping plate is an isosceles acute triangle.
3. The steel cage protective layer protection device according to claim 1 is characterized in that: The triangular clamping plate is arranged horizontally, and the inner side of the clamping interface is fitted and clamped on the vertical reinforcement of the reinforcement cage.
4. The steel cage protective layer protection device according to claim 3 is characterized in that: The number of the triangular clamping plates is equal to the number of the vertical bars of the steel cage; The triangular clamping plate is installed on each of the vertical ribs; The heights of the triangular clamping plates arranged on each of the vertical ribs are all equal.
5. The steel cage protective layer protection device according to claim 1 is characterized in that: The triangular clamping plate is clamped by the clamping interface at a position 1.2-2.2 m above the position where the concrete pad is fixed on the steel cage.
6. The steel cage protective layer protection device according to claim 1 is characterized in that: The triangular clamping plate is a triangular steel plate.
7. The steel cage protective layer protection device according to claim 6 is characterized in that: The thickness of the triangular steel plate is at least 2 cm.
8. The steel cage protective layer protection device according to claim 6 is characterized in that: The rod is a steel bar structure; The rod is connected to the triangular steel plate by welding.
9. The steel cage protective layer protection device according to claim 1 is characterized in that: The removable steel bar fixing member is a binding wire; a first binding hole and a second binding hole are respectively provided on both sides of the clamping interface of the triangular clamping plate; The binding wire is arranged on the outside of the steel cage, and both ends of the binding wire pass through the steel cage and are fixedly connected to the first binding hole and the second binding hole respectively.
10. The steel cage protective layer protection device according to claim 1, characterized in that: A soft anti-slip protective layer is arranged on the inner side of the card interface.