A bite type high-efficiency template fastening construction tool

Abstract

The utility model belongs to wall, column external corner template fixed technical field, concretely relates to a kind of efficient template fastening construction tool of occlusion type;Including scissor type occlusion support, the top of the middle articulation shaft of scissor type occlusion support is connected with control mechanism, the bottom of the outside articulation shaft of scissor type occlusion support is provided with clamping part, control mechanism can control scissor type occlusion support telescoping to adjust the spacing between the clamping part of two sides, the clamping part of two sides can be clamped and fixed external corner template;Through the structural design of scissor type occlusion support, clamping part can simultaneously act on multiple positions of template, realize the uniform clamping of external corner template, effectively avoid the stress concentration problem caused by traditional single-point clamping mode, improve the overall stability and security of template.

Description

Technical Field

[0001] This utility model belongs to the technical field of wall and column corner formwork fixing, specifically relating to an interlocking high-efficiency formwork fastening construction tool. Background Technology

[0002] Tie bolt fastening is a relatively traditional method of formwork securing. It involves drilling holes along the edges of the formwork and then using bolts and nuts to connect two or more formwork panels together. Workers then use tools such as wrenches to tighten the nuts, creating tension in the bolts and thus firmly securing the formwork. For example, in the installation of building wall formwork, bolt holes are set at regular intervals along the vertical and horizontal edges of the formwork. After the bolts are installed, tightening the nuts applies a securing force, ensuring the integrity and stability of the formwork.

[0003] Advantages: Strong and stable fastening force. It can withstand significant concrete pouring pressure and is less prone to formwork deformation or displacement. In formwork construction of large building structures, such as the core tube formwork of high-rise buildings, bolt fastening provides reliable fixation; the technology is mature and easy for construction workers to master. Because this technology has been used for many years, most construction workers are familiar with its operation, requiring no additional complex training.

[0004] Disadvantages: The installation and disassembly process is relatively cumbersome. It requires drilling holes in the formwork, installing bolts and nuts, and unscrewing each nut individually during disassembly, which is time-consuming. This increases the construction period and labor costs; the bolt holes can cause some damage to the formwork. Repeatedly used formwork is prone to cracks and damage around the bolt holes, affecting its lifespan.

[0005] like Figure 1 As shown: To address the shortcomings of using tie bolts to fasten formwork, utility model patent CN222375995U discloses a corner formwork reinforcement device, including an L-shaped screw, a sleeve, an angle steel, and a nut. The angle steel is fixed to the sleeve, which is fitted onto the horizontal bar of the L-shaped screw. The vertical bar of the L-shaped screw and the angle steel clamp the back ribs on the two formwork panels at the corner. The nut is screwed onto the horizontal bar of the L-shaped screw to apply a preload. Although this corner formwork reinforcement device improves upon the drawbacks of using tie bolts to fasten formwork, it suffers from the problem of single-point clamping and stress concentration. Utility Model Content

[0006] This invention aims to solve the problem that existing corner template reinforcement devices can only clamp at a single point, resulting in stress concentration during clamping.

[0007] This utility model provides the following technical solution: a high-efficiency interlocking template fastening construction tool, including a scissor-type interlocking bracket, a control mechanism connected to the top of the middle hinge shaft of the scissor-type interlocking bracket, and a clamping part provided at the bottom of the outer hinge shaft of the scissor-type interlocking bracket. The control mechanism can control the extension and retraction of the scissor-type interlocking bracket to adjust the distance between the clamping parts on both sides. The clamping parts on both sides can clamp and fix the external corner template.

[0008] Furthermore, the control mechanism includes a front support, a rear support, and a tie rod. The front support and the rear support are respectively mounted on the middle hinge shafts at the beginning and end of the scissor-type interlocking bracket. The front support is provided with a screw hole, and the rear support is provided with a light hole coaxial with the screw hole. The tie rod passes through the light hole of the rear support and is threaded into the screw hole of the front support. The stop block on the tie rod stops at the rear support.

[0009] Furthermore, the control mechanism also includes a guide seat, which is mounted on the intermediate hinge shaft of the scissor-type interlocking bracket between the front support and the rear support. The guide seat is provided with a light hole, and the pull rod passes through the light hole of the guide seat.

[0010] Furthermore, the tie rod is a bolt, and the bolt head of the tie rod is stopped by the rear support.

[0011] Furthermore, the clamping part includes a clamping plate and a sleeve, the sleeve being fitted onto the extended shaft section of the outer hinge shaft of the scissor-type interlocking bracket, and the clamping plate being centrally fixed on the sleeve.

[0012] Compared with the prior art, the advantages of this utility model are: This utility model provides a high-efficiency interlocking formwork fastening construction tool. Through the structural design of the scissor-type interlocking bracket, the clamping part can act on multiple positions of the formwork simultaneously, achieving uniform clamping of the external corner formwork. This effectively avoids the stress concentration problem caused by the traditional single-point clamping method, improving the overall stability and safety of the formwork. The control mechanism realizes the extension and retraction of the scissor-type bracket through the cooperation of the pull rod and the thread, which can precisely adjust the distance between the clamping parts on both sides to adapt to the construction needs of formwork of different thicknesses. It is easy to operate and has a wide range of applications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a corner formwork reinforcement device in the prior art; Figure 2 A schematic diagram of a high-efficiency interlocking formwork fastening construction tool; Figure 3 This is a schematic diagram of the installation of a high-efficiency interlocking formwork fastening tool.

[0014] In the diagram: 1-Scissor-type interlocking bracket; 2-Front support; 3-Rear support; 4-Tie rod; 5-Guide seat; 6-Clamping plate; 7-Sleeve; 8-Longitudinal template; 9-Longitudinal template back rib; 10-L-shaped screw; 11-Sleeve; 12-Angle steel; 13-Transverse template; 14-Transverse template back rib; 15-Nut. Detailed Implementation

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] like Figure 2 , Figure 3 As shown: A high-efficiency interlocking formwork fastening construction tool includes a scissor-type interlocking bracket 1. The scissor-type interlocking bracket 1 is formed by multiple sets of connecting rods that are cross-hinged through hinge shafts to form a telescopic parallelogram mechanism. A control mechanism is connected to the top of the middle hinge shaft of the scissor-type interlocking bracket 1, and a clamping part is provided at the bottom of the outer hinge shaft of the scissor-type interlocking bracket 1. The control mechanism can control the extension and retraction of the scissor-type interlocking bracket 1 to adjust the distance between the clamping parts on both sides. The clamping parts on both sides can clamp and fix the external corner formwork.

[0017] The control mechanism includes a front support 2, a rear support 3, and a tie rod 4. The front support 2 and the rear support 3 are respectively mounted on the intermediate hinge shafts at the beginning and end of the scissor-type interlocking bracket 1. The front support 2 is provided with a screw hole, and the rear support 3 is provided with a smooth hole coaxial with the screw hole. The tie rod 4 passes through the smooth hole of the rear support 3 and is threaded into the screw hole of the front support 2. The stop block on the tie rod 4 stops at the rear support 3. The tie rod 4 is a bolt, and the bolt head of the tie rod 4 stops at the rear support 3.

[0018] The clamping part includes a clamping plate 6 and a sleeve 7. The sleeve 7 is sleeved on the extended shaft of the outer hinge shaft of the scissor-type interlocking bracket 1 and can rotate around it. The clamping plate 6 is fixed in the center on the sleeve 7.

[0019] The threaded drive generates axial tension. When the pull rod 4 is turned, its head is stopped on the rear support 3, and the thread engages with the front support 2. The rotational motion is converted into axial linear motion in which the front support 2 and the rear support 3 move closer or further apart. This axial motion is converted into lateral extension and retraction. The opposing or receding movements of the front support 2 and the rear support 3 force the hinge angle of the entire scissor-type interlocking bracket 1 to change, thereby converting the axial displacement of the control mechanism into the lateral opening or contraction of the clamping parts on both sides.

[0020] The clamping parts on both sides are pressed synchronously and parallel onto the template back ribs on both sides of the external corner by clamping plates 6. Due to the characteristics of the scissor structure, the applied clamping force is evenly distributed to multiple hinge points and clamping parts, effectively avoiding stress concentration at a single point.

[0021] By simply using a wrench to tighten a single lever 4, the entire process of opening, positioning, tightening, and disassembling the tool can be completed quickly, taking only a fraction of the time of traditional tie bolts or single-point reinforcement devices, significantly improving construction efficiency.

[0022] The control mechanism also includes a guide seat 5, which is installed on the intermediate hinge shaft of the scissor bite bracket 1 between the front support 2 and the rear support 3. The guide seat 5 is provided with a light hole, and the pull rod 4 passes through the light hole of the guide seat 5; this increases the connection rigidity between the pull rod 4 and the scissor bite bracket 1, and the scissor bite bracket 1 can extend and retract linearly with the pull rod 4 as the guide.

[0023] The use of the interlocking high-efficiency formwork fastening construction tool in this embodiment can effectively improve the efficiency of construction operations. After applying this tool, the operation time can be reduced by half compared with the traditional formwork reinforcement method, the construction efficiency is significantly improved, and the labor utilization rate is high.

[0024] This tool was used in the main structure formwork construction of the first phase of the Huozhou Coal and Electricity Group Huiyuan Residential Building Project and the Anhui Hospital of Beijing Tiantan Hospital affiliated to Capital Medical University. Before its use, one person could complete 20 square meters of traditional formwork reinforcement per day. After using the special tool, one person could complete 60 × 2 = 40 square meters per day, saving 0.5 manpower and construction time. Based on the fact that the project is a high-rise residential building with 25 floors above ground and 2 floors below ground, and the vertical formwork area of ​​a single floor is 2000 square meters, the calculation is: 2000 × 27 floors ÷ 20 square meters / man-day / person = 2700 man-days, 2700 × 0.5 = 1350 man-days. Based on the carpenter's labor unit price of 500 yuan / man-day, the cost saving is: 500 yuan / man-day × 1350 man-days = 675,000 yuan.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency interlocking formwork fastening construction tool, characterized in that: The scissor bite bracket (1) is provided with a control mechanism at the top of the middle hinge shaft of the scissor bite bracket (1) and a clamping part at the bottom of the outer hinge shaft of the scissor bite bracket (1). The control mechanism can control the extension and retraction of the scissor bite bracket (1) to adjust the distance between the clamping parts on both sides. The clamping parts on both sides can clamp and fix the external corner template.

2. The interlocking high-efficiency formwork fastening construction tool according to claim 1, characterized in that: The control mechanism includes a front support (2), a rear support (3) and a pull rod (4). The front support (2) and the rear support (3) are respectively installed on the middle hinge shaft at the head and tail of the scissor-type interlocking bracket (1). The front support (2) is provided with a screw hole, and the rear support (3) is provided with a light hole coaxial with the screw hole. The pull rod (4) passes through the light hole of the rear support (3) and is threaded into the screw hole of the front support (2). The stop block on the pull rod (4) stops at the rear support (3).

3. The interlocking high-efficiency formwork fastening construction tool according to claim 2, characterized in that: The control mechanism also includes a guide seat (5), which is installed on the middle hinge shaft of the scissor-type interlocking bracket (1) between the front support (2) and the rear support (3). The guide seat (5) is provided with a light hole, and the pull rod (4) passes through the light hole of the guide seat (5).

4. The interlocking high-efficiency formwork fastening construction tool according to claim 3, characterized in that: The tie rod (4) is a bolt, and the bolt head of the tie rod (4) is stopped by the rear support (3).

5. A high-efficiency interlocking formwork fastening construction tool according to any one of claims 1 to 4, characterized in that: The clamping part includes a clamping plate (6) and a sleeve (7). The sleeve (7) is sleeved on the extended shaft of the outer hinge shaft of the scissor-type bite bracket (1), and the clamping plate (6) is fixed in the center on the sleeve (7).

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