Road steel formwork cable-stayed fixing device
By setting up rectangular trapezoidal fixing holes on the channel steel formwork and using hook screws and locking pins, the problems of formwork deformation, running molds and increasing molds are solved, and the stable connection and efficient turnover of the formwork are achieved, and the overall efficiency of concrete pavement construction is improved.
Patent Information
- Application Number
- CN202422370526.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-27
AI Technical Summary
During construction of municipal road base or surface concrete structures, the formwork is prone to deformation, running and increasing the formwork. The traditional fixing method is not strong enough, which affects the construction stability and turnoverability.
A road steel formwork cable-stay fixing device is designed, and a rectangular cable-stay fixing hole is set using channel steel formwork, combining the hook head screw and the locking pin. Through the cooperation of the hook head screw and the locking pin, the stable connection between the channel steel formwork and the ground is achieved, and the stability is enhanced by using rectangular protective covers and clamp nails.
It improves the stability and detachability of the formwork support structure, enhances construction efficiency, easy material turnover, reduces construction costs, and improves the overall efficiency of concrete pavement construction.
Smart Images
Figure CN223134921U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of municipal engineering road construction, and specifically relates to an inclined pulling and fixing device for road steel formwork. Background Art
[0002] The base or surface layer of municipal roads is mostly of concrete structure. During the construction of the concrete surface layer, the concrete side formwork is supported by channel steel formwork, and simple wooden wedges and steel bars are often used to fix the channel steel formwork. During the concrete pouring, due to the rolling of the rollers of the surface layer paver, problems such as deformation, formwork displacement, and formwork bulging of the formwork will occur, which are all caused by the formwork fixing method. In order to ensure the stability and convenient turnover of the formwork support during the construction of road concrete, it is urgent to develop a fixing mold for road steel formwork to replace the traditional construction method and make the formwork support structure more durable.
[0003] Therefore, it is necessary to develop an inclined pulling and fixing device for road steel formwork. Summary of the Utility Model
[0004] The purpose of the utility model is to design an inclined pulling and fixing device for road steel formwork to solve the problems such as deformation, formwork displacement, and formwork bulging of the formwork, and make the formwork support structure more durable in view of the deficiencies existing in the prior art.
[0005] To achieve the above purpose, the utility model provides an inclined pulling and fixing device for road steel formwork, adopting the following technical solutions, including: channel steel formwork, hook head screw, and locking pin. Among them, a rectangular inclined pulling and fixing hole is arranged at 2 / 3 height of the web of the channel steel formwork. The hook head screw consists of a hook head end and a straight end. The straight end of the hook head screw is a full-thread screw. The hook head end of the hook head screw is hooked into the rectangular inclined pulling and fixing hole, and the hook head screw is fixed to the channel steel formwork by screwing a formwork fastening nut into the straight end. One side wall of the locking pin is provided with a pin fixing sleeve. The straight end of the hook head screw passes through the pin fixing sleeve, and the pin fixing sleeve is provided with pin fastening nuts on both the left and right sides to be tightened and fixed to lock the position of the hook head screw and the locking pin. The channel steel formwork and the locking pin are fixed to the ground to realize the stability of the overall structure.
[0006] Furthermore, a rectangular protective cover is arranged outside the rectangular inclined pulling and fixing hole on the channel steel formwork.
[0007] Furthermore, the channel steel formwork is fixed to the ground by clip nails. The nail head of the clip nail is clamped to the top of the channel steel formwork. The clip nails are arranged along the outer flange of the channel steel formwork, and the other end of the clip nail is inserted into the ground.
[0008] Furthermore, the locking pin is vertically and obliquely inserted into the ground and fixed to the channel steel formwork.
[0009] Furthermore, the straight end of the hook head screw adopts a 14mm diameter through-thread screw, and the screw length is not less than 600mm; the hook head end adopts a 30mm long, 14mm diameter steel bar welded and connected to the end of the screw, forming a 90° right angle with the screw.
[0010] Furthermore, the locking pin is a steel bar with a length of not less than 500 mm and a diameter of 14 mm, and a circular sleeve is welded on the upper side of the locking pin to form the pin fixing sleeve.
[0011] Furthermore, the clip nail is vertically nailed into the ground to a depth of not less than 300 mm.
[0012] Furthermore, the locking pin is nailed into the ground to a vertical depth of not less than 300 mm.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model provides a rectangular oblique fixing hole and a rectangular protective cover on the wall of the channel steel template, which not only meets the use requirements of the oblique fixing of the channel steel template, but also facilitates the demoulding, and the hook screw is easy to disassemble and use;
[0015] 2. The utility model can more conveniently disassemble and adjust the position and tension strength of the obliquely fixed channel steel template by adding the use of locking pins, and the use efficiency is greatly improved;
[0016] 3. The utility model adopts all existing turnover materials, such as 14mm diameter steel bars, threaded screws, etc., which are easy to obtain, easy to detect material properties, and economically feasible;
[0017] 4. The utility model has a simple structure, is easy to install, and has efficient construction, which greatly improves the overall efficiency of concrete pavement construction. In particular, the concrete pavement of a two-way lane can be effectively connected with new and old concrete through the arrangement of the utility model, thereby greatly improving the durability of the structure.
[0018] The utility model is used for supporting concrete pavement formwork. The utility model not only has simple materials and good structural rigidity and stability, but also is simple to construct and highly practical. By adjusting the number and spacing of inclined pulls, not only the stability of lateral support is achieved, but also turnover and detachability are achieved by using reserved formwork grooves, thereby greatly improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the top view of the overall structure of the utility model;
[0020] Figure 2 It is a front view structural diagram of the overall structure of the utility model;
[0021] Figure 3 This is the front view structural schematic diagram of the channel steel formwork of the present utility model;
[0022] Figure 4 This is the structural schematic diagram of the locking pin of the present utility model.
[0023] In the figure: 1-channel steel formwork; 11-rectangular protective cover; 12-rectangular diagonal tension fixing hole; 2-hook head screw; 21-formwork fastening nut; 22-pin fastening nut; 3-locking pin; 31-pin fixing sleeve; 4-clamp nail. Specific embodiments
[0024] The preferred embodiments of the present utility model will be described in more detail below. Although the preferred embodiments of the present utility model are described below, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.
[0025] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0027] As Figures 1-4 shown, the present utility model is a diagonal tension fixing device for road steel formwork, including: channel steel formwork 1, hook head screw 2, and locking pin 3.
[0028] Among them, the channel steel formwork 1 is provided with rectangular diagonal tension fixing holes 12 at 2 / 3 of the height of the web 2, and rectangular protective covers 11 are arranged outside the rectangular diagonal tension fixing holes 12 of the channel steel formwork 1. The hook head screw 2 is composed of a hook head end and a straight end, and the straight end of the hook head screw 2 is a through-thread screw. One side wall of the locking pin 3 is provided with a pin fixing sleeve 31.
[0029] Specifically, the hook head end of the hook head screw 2 is hooked into the rectangular diagonal tension fixing hole 12, and the hook head screw 2 is fixed to the channel steel formwork 1 by screwing the formwork fastening nut 21 into the straight end. The straight end of the hook head screw 2 passes through the pin fixing sleeve 31, and pin fastening nuts 22 are arranged on both the left and right of the pin fixing sleeve 31 and tightened to lock the positions of the hook head screw 2 and the locking pin 3.
[0030] The channel steel formwork 1 is fixed to the ground by clip nails 4. The nail heads of the clip nails 4 are clamped to the top of the channel steel formwork 1. The clip nails 4 are arranged along the outer flange of the channel steel formwork 1, and the other ends of the clip nails 4 are inserted into the ground. The locking pin 3 is vertically and obliquely inserted into the ground and fixed to the channel steel formwork 1. By fixing the channel steel formwork 1, the locking pin 3 and the ground, the stability of the overall structure is achieved.
[0031] In a specific embodiment, the straight end of the hook head screw 2 uses a through-thread screw with a diameter of 14 mm, and the screw length is not less than 600 mm; the hook head end uses a steel bar with a length of 30 mm and a diameter of 14 mm, which is welded to the end of the screw and forms a 90° right angle with the screw. The locking pin 3 is a steel bar with a length of not less than 500 mm and a diameter of 14 mm. A circular sleeve is welded to the upper side of the locking pin 3 to form a pin fixing sleeve 31. The clip nails 4 are vertically nailed into the ground with a depth of not less than 300 mm. The locking pin 3 is nailed into the ground with a vertical depth of not less than 300 mm.
[0032] The above embodiments are only the preferred embodiments of the present invention. The above description does not limit the protection scope of the present invention in turn. The above description is exemplary and not exhaustive. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art.
Claims
1. A stay cable fixing device for road steel formwork, characterized in that, Including: Channel steel formwork (1), hook-headed screw (2), locking pin (3). Among them, a rectangular diagonal tension fixing hole (12) is provided at 2 / 3 height of the web of the channel steel formwork (1). The hook-headed screw (2) consists of a hook head end and a straight end. The straight end of the hook-headed screw (2) is a through-thread screw. The hook head end of the hook-headed screw (2) is hooked into the rectangular diagonal tension fixing hole (12), and the hook-headed screw (2) is fixed to the channel steel formwork (1) by screwing a formwork fastening nut (21) into the straight end. One side wall of the locking pin (3) is provided with a pin fixing sleeve (31). The straight end of the hook-headed screw (2) passes through the pin fixing sleeve (31), and pin fastening nuts (22) are arranged on both the left and right sides of the pin fixing sleeve (31) and tightened to lock the positions of the hook-headed screw (2) and the locking pin (3). The channel steel formwork (1) and the locking pin (3) are fixed to the ground to achieve the stability of the overall structure.
2. The cable-stayed fixing device for road steel formwork according to claim 1, characterized in that, A rectangular protective cover (11) is arranged outside the rectangular diagonal tension fixing hole (12) of the channel steel formwork (1).
3. The cable-stayed fixing device for road steel formwork according to claim 1, wherein The channel steel formwork (1) is fixed to the ground by clip nails (4). The nail head of the clip nail (4) is clamped to the top of the channel steel formwork (1). The clip nails (4) are arranged along the outer flange of the channel steel formwork (1), and the other end of the clip nail (4) is inserted into the ground.
4. The stay cable fixing device for road steel formwork according to claim 1, characterized in that, The locking pin (3) is vertically and obliquely inserted into the ground and fixed to the channel steel formwork (1).
5. The cable-stayed fixing device for road steel formwork according to claim 1, characterized in that, The straight end of the hook-headed screw (2) is a through-thread screw with a diameter of 14 mm, and the screw length is not less than 600 mm; the hook head end is a steel bar with a length of 30 mm and a diameter of 14 mm, which is welded to the end of the screw and forms a 90° right angle with the screw.
6. The cable-stayed fixing device for road steel formwork according to claim 1, characterized in that, The locking pin (3) is a steel bar with a length of not less than 500 mm and a diameter of 14 mm. A circular sleeve is welded to the upper side of the locking pin (3) to form the pin fixing sleeve (31).
7. A road steel formwork cable-stayed fixing device according to claim 3, characterized in that, The clip nails (4) are vertically nailed into the ground to a depth of not less than 300 mm.
8. The inclined cable-stayed fixing device for road steel formwork according to claim 4, characterized in that, The locking pin (3) is nailed into the ground to a vertical depth of not less than 300 mm.