An adjustable support system for tie-bar-free drainage ditch formwork in high-altitude and cold regions

The drainage ditch formwork support system, with its hollow design and cold-resistant coating, solves the problem of freezing cracking and failure of formwork support systems in high-altitude and cold regions under low-temperature conditions, thereby improving structural stability and construction efficiency.

CN224451830UActive Publication Date: 2026-07-03CHINA RAILWAY GUANGZHOU ENG GRP CO LTD +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY GUANGZHOU ENG GRP CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The low-temperature environment in high-altitude and frigid regions poses a severe test to the durability and stability of drainage ditch formwork support systems. Traditional support systems are prone to freezing and cracking and failure under low-temperature conditions, affecting construction quality and service life.

Method used

The drainage ditch template and side support rods feature a hollow design, while the surface of the middle support rod is coated with a cold-proof layer. Combined with the reinforcing buckle rod and reinforcing crossbar, they form a stable right-angle support and an embedded connection. The middle support rod and the connecting support rod form an H-shaped support structure, which can be easily installed through quick-connect couplings.

Benefits of technology

It effectively resists low-temperature corrosion, reduces the risk of freezing and cracking, enhances structural stability, improves construction efficiency and quality, adapts to complex terrain, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an adjustable support system for drainage ditch formwork without tie rods in high-altitude and cold regions, specifically relating to the field of drainage ditch formwork support technology. It includes a drainage ditch formwork, the horizontal structure of which is composed of three independent formwork units spliced ​​together. The formwork is provided with four side support vertical rods on the sides of both sides. Reinforcing horizontal rods are detachably installed at the top of the side support vertical rods. These reinforcing horizontal rods are constructed using a double-channel steel back-to-back welding process. Four sets of intermediate support vertical rods are symmetrically welded to the bottom of each reinforcing horizontal rod. An innovative perforation design between the drainage ditch formwork and the side support vertical rods reduces heat differences and lowers the risk of freezing and cracking. The intermediate support vertical rods are coated with a cold-proof layer to resist low-temperature corrosion. The reinforcing buckle rods are securely connected to the horizontal rods, and together with H-shaped supports, disperse the lateral pressure of the concrete, prevent formwork deformation, ensure construction quality and efficiency, and provide a reliable solution for the construction of drainage ditches in high-altitude and cold regions.
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Description

Technical Field

[0001] This utility model relates to the field of drainage ditch formwork support technology, and more specifically, to an adjustable support system for tie rod-free drainage ditch formwork in high-altitude and cold regions. Background Technology

[0002] When constructing drainage ditches in high-altitude and cold regions, existing technologies face many challenges. Drainage ditch formwork is an adjustable support system for drainage ditch formwork without tie rods in high-altitude and cold regions.

[0003] Existing publication number CN213740481 U discloses a quick-installation and dismantling drainage ditch construction template, comprising a concrete base layer, two inner wooden molds facing each other on the upper part of the concrete base layer, and two outer wooden molds positioned outside the inner wooden molds; the two outer wooden molds are fixed externally by support frames, and the two inner wooden molds are connected and fixed together by connectors; it is highly practical, very simple to operate, and the template can be adjusted according to the width of the drainage ditch, applicable to various ditch sizes, and is simple and quick to install, effectively improving construction efficiency and ensuring construction quality. In the process of realizing this utility model, the inventors discovered the following problems with the existing technology:

[0004] The unique climate of high-altitude and frigid regions poses a severe test to the durability of the support system. Low temperatures can easily cause materials to freeze, crack, and deform. Traditional support systems lack effective cold protection measures, making it difficult to guarantee structural stability under long-term low-temperature conditions. This can easily lead to problems such as formwork displacement and support failure, affecting the construction quality and service life of the drainage ditch.

[0005] Therefore, an adjustable support system for tie-bar-free drainage ditch templates in high-altitude and cold regions is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides an adjustable support system for a tie-bar-free drainage ditch template in high-altitude and cold regions, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable support system for a tie-bar-free drainage ditch template in high-altitude and cold regions, comprising a drainage ditch template. The horizontal structure of the drainage ditch template is composed of three independent template units spliced ​​together. The drainage ditch template is provided with four side support vertical bars on the sides of the two sides. A reinforcing horizontal bar can be detachably installed on the top of the side support vertical bar. The reinforcing horizontal bar adopts a double channel steel back-to-back welding process. Four sets of intermediate support vertical bars are symmetrically welded to the bottom of the reinforcing horizontal bar.

[0008] Preferably, the reinforcement spacing of the intermediate support vertical rod is 50cm, the surface of the intermediate support vertical rod is treated with a cold-proof coating, and the opposite side of the intermediate support vertical rod is detachably connected to the support rod via a quick-connect coupling.

[0009] Preferably, a reinforcing buckle is fixedly installed on the outer side of the side support vertical rod by welding. The bottom of the reinforcing buckle forms a right-angle support structure with the side support vertical rod, and the top of the reinforcing buckle extends to the bottom of the reinforcing horizontal rod. The top inner side of the reinforcing buckle is provided with a concave groove, which forms an embedded connection with the convex guide rail preset at the bottom of the reinforcing horizontal rod.

[0010] Preferably, the opposite side of the intermediate support vertical rod is provided with a positioning groove through machining.

[0011] Preferably, the intermediate support vertical rod and the connecting support rod are combined to form an H-shaped support structure. The inner surface of the intermediate support vertical rod is in contact with the template surface. The connecting support rod passes through the middle of the two intermediate support vertical rods laterally and forms a rigid connection with the vertical rod through the embedded snap-fit ​​in the positioning groove.

[0012] Preferably, the two ends of the connecting support rod are integrally formed by welding and are provided with positioning protrusions, and the surface of the positioning protrusions matches the positioning groove opened on the upper side of the middle support vertical rod.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] Compared with existing technologies, this adjustable support system for drainage ditch templates in high-altitude and cold regions utilizes an innovative hollow design for the drainage ditch template and side support vertical bars. This reduces the difference between heat accumulation and dissipation, lowering the risk of freezing and cracking. The surface of the middle support vertical bars is treated with an anti-freezing coating, effectively resisting low-temperature corrosion and extending service life. At the same time, the reinforcing buckle rods and reinforcing crossbars form a stable right-angle support and embedded connection, enhancing the stability of the overall structure. Combined with the H-shaped support structure, it can effectively distribute and bear the lateral pressure during concrete pouring, preventing template deformation and ensuring the construction quality and precision of the drainage ditch. This provides reliable technical support for the construction of drainage ditches in high-altitude and cold regions.

[0015] Compared with existing technologies, this adjustable support system for drainage ditch templates in high-altitude and cold regions, consisting of four horizontally spliced ​​three independent template units, can flexibly adapt to the construction needs of drainage ditches of different widths and shapes. It eliminates the need for frequent template replacements due to terrain changes, greatly improving the versatility of the templates and meeting diverse construction scenarios in complex high-altitude terrains. The side support verticals and reinforcing horizontals are detachable and installable, and the middle support verticals and connecting support rods are also connected via quick-connect couplings and embedded clips. The installation and disassembly of each component are convenient, eliminating the cumbersome procedures of traditional tie rod installation and removal, significantly shortening the construction cycle and improving overall construction efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is an exploded structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the connection between the intermediate support vertical rod and the connecting support rod of this utility model.

[0019] The attached diagram is labeled as follows: 1. Drainage ditch template; 2. Side support vertical bar; 3. Reinforcing horizontal bar; 4. Reinforcing buckle bar; 5. Middle support vertical bar; 6. Positioning groove; 7. Connecting support rod; 8. Positioning protrusion. 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] As attached Figures 1 to 3 The diagram shows an adjustable support system for a tie-bar-free drainage ditch template in high-altitude and cold regions. It includes a drainage ditch template 1. The horizontal structure of the drainage ditch template 1 is composed of three independent template units spliced ​​together. The drainage ditch template 1 is provided with four side support vertical bars 2 on the sides of the two sides. The top of the side support vertical bars 2 can be detachably installed with reinforcing horizontal bars 3. The reinforcing horizontal bars 3 adopt a double channel steel back-to-back welding process. Each reinforcing horizontal bar 3 has four sets of intermediate support vertical bars 5 symmetrically welded to its bottom.

[0023] The drainage ditch template 1 is horizontally composed of three independent template units spliced ​​together, with a total of four units. This design gives the template excellent flexibility and adaptability, allowing for easy adjustment of template size and shape to suit the complex and varied terrain of high-altitude areas. This meets the construction needs of drainage ditches of different specifications, significantly reducing the cost and time of template customization due to terrain limitations. Side support vertical bars 2 are installed on both sides, with detachable reinforcing horizontal bars 3 using a double-channel steel back-to-back welding process installed on top. The double-channel steel structure greatly enhances the strength and stability of the reinforcing horizontal bars 3, providing a solid and reliable top support for the entire support system. Each reinforcing horizontal bar 3 has four sets of symmetrically welded intermediate support vertical bars 5 at its bottom, further dispersing the lateral pressure generated during concrete pouring, effectively preventing template deformation, ensuring the forming quality and construction accuracy of the drainage ditch, and providing an efficient and reliable solution for drainage ditch construction in high-altitude and cold regions.

[0024] Example 2

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 3 As shown below, see details:

[0026] In a preferred embodiment, the reinforcement spacing of the intermediate support vertical rods 5 is 50cm. The surface of the intermediate support vertical rods 5 is treated with a cold-proof coating. The reasonable spacing can ensure the support strength while taking into account the economy of materials. The support rods 7 can be detachably installed and connected to the opposite side of the intermediate support vertical rods 5 through quick-connect joints. The surface of the intermediate support vertical rods 5 is specially treated with a cold-proof coating, which can effectively resist the low-temperature corrosion of high-altitude and cold regions and extend the service life. At the same time, the support rods 7 can be quickly, conveniently and detachably installed and connected to the opposite side of the intermediate support vertical rods 5 using quick-connect joints, which greatly improves the construction efficiency.

[0027] In a preferred embodiment, a reinforcing buckle rod 4 is fixedly welded to the outer side of the side support vertical rod 2. The reinforcing buckle rod 4 is a steel mountain-shaped buckle. The bottom of the reinforcing buckle rod 4 forms a right-angle support structure with the side support vertical rod 2, and the top of the reinforcing buckle rod 4 extends directly below the reinforcing horizontal rod 3. The inner side of the top of the reinforcing buckle rod 4 is provided with a concave groove, which forms an embedded connection with the convex guide rail pre-set at the bottom of the reinforcing horizontal rod 3. This mortise and tenon joint structure not only effectively disperses the lateral load, but also prevents the reinforcing horizontal rod 3 from laterally sliding in strong winds at high altitudes through the limiting effect of the buckle. Thus, a three-dimensional force system of side support vertical rod 2-reinforcing buckle rod 4-reinforcing horizontal rod is constructed, which significantly improves the overturning resistance of the overall support structure.

[0028] As a preferred embodiment, the intermediate support vertical rod 5 and the connecting support rod 7 are combined to form an H-shaped support structure. During the installation process, the intermediate support vertical rod 5 is precisely positioned so that its inner surface is in contact with the template surface to ensure no gaps or deviations. The inner surface of the intermediate support vertical rod 5 is in contact with the template surface, which effectively resists the lateral pressure during concrete pouring and ensures construction stability.

[0029] In a preferred embodiment, the opposite side of the intermediate support vertical rod 5 is provided with a positioning groove 6 through machining. The connecting support rod 7 passes through the middle of the two intermediate support vertical rods 5 laterally. It forms a rigid connection with the vertical rod through the embedded snap-fit ​​in the positioning groove 6, so that the connecting support rod 7 and the intermediate support vertical rod 5 are combined to form a stable rigid connection, effectively ensuring the overall support strength.

[0030] In a preferred embodiment, the two ends of the connecting support rod 7 are integrally formed by welding and have positioning protrusions 8. The protrusions have a trapezoidal cross-section structure, and their wedge-shaped design, which is narrow at the top and wide at the bottom, can effectively enhance the self-locking effect when inserted and positioned. The surface of the positioning protrusion 8 and the positioning groove 6 opened on the upper side of the middle support vertical rod 5 are matched. When the positioning protrusion 8 is fully embedded in the positioning groove 6, its trapezoidal inclined surface and the side wall of the groove form a mechanical engagement, so that when the connecting support rod 7 is subjected to lateral load, the stress can be evenly distributed to the middle support vertical rod 5 through the positioning structure, which significantly improves the overall stability of the H-type support system.

[0031] In this embodiment, the drainage ditch template 1 and the side support vertical rod 2 are both commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, so we will not go into detail here.

[0032] The working process of this utility model is as follows: First, four drainage ditch templates 1, which are horizontally spliced ​​from three independent template units, are placed in the corresponding positions according to the design requirements. Next, side support vertical bars 2 are installed on the sides of the drainage ditch templates 1. Because they adopt an innovative hollow design with the drainage ditch templates 1, the impact of low temperature can be reduced. After that, the reinforcing horizontal bars 3, which adopt a double channel steel back-to-back welding process, are detachably installed on the top of the side support vertical bars 2. Four sets of intermediate support vertical bars 5 with a 50cm spacing are symmetrically welded to the bottom of the reinforcing horizontal bar 3, with the surface treated with a cold-proof coating. Then, a reinforcing buckle bar 4 is welded to the outside of the side support vertical bar 2, and its bottom forms a stable right-angle support with the side support vertical bar 2. The concave groove on the top is embedded in the convex guide rail at the bottom of the reinforcing horizontal bar 3 to enhance the structural stability. Then, a connecting support bar 7 is detachably installed on the opposite side of the intermediate support vertical bar 5 through a quick-connect joint. A positioning groove 6 is opened on the opposite side of the intermediate support vertical bar 5, and positioning protrusions 8 are welded to both ends of the connecting support bar 7. The two work together to assemble the intermediate support vertical bar 5 and the connecting support bar 7 to form an H-shaped support structure. The inner side is attached to the template to disperse the lateral pressure of concrete pouring and prevent template deformation.

[0033] The above describes the working principle of this adjustable support system for tie-bar-less drainage ditch templates in high-altitude and cold regions.

Claims

1. A high-altitude alpine region without pull rod drainage ditch formwork adjustable support system, comprising a drainage ditch formwork (1), characterized in that: The horizontal structure of the drainage ditch template (1) is composed of three independent template units spliced ​​together. The drainage ditch template (1) is provided with four side support vertical rods (2) on the sides of the two sides. The side support vertical rods (2) are detachably installed with reinforcing horizontal rods (3) at the top. The reinforcing horizontal rods (3) adopt a double channel steel back-to-back welding process. The bottom of the reinforcing horizontal rods (3) is symmetrically welded with four sets of intermediate support vertical rods (5).

2. The adjustable support system for the template of the non-pull-rod drainage ditch in the high and cold region of the plateau according to claim 1, characterized in that: The reinforcement spacing of the intermediate support vertical rod (5) is 50cm. The surface of the intermediate support vertical rod (5) is treated with a cold-proof coating. The opposite side of the intermediate support vertical rod (5) can be detachably connected to the support rod (7) through a quick-connect joint.

3. The adjustable support system for the template of the non-pull-rod drainage ditch in the high and cold region of the plateau according to claim 2, characterized in that: A reinforcing buckle rod (4) is fixedly installed on the outside of the side support vertical rod (2) by welding. The bottom of the reinforcing buckle rod (4) forms a right-angle support structure with the side support vertical rod (2). The top of the reinforcing buckle rod (4) extends to the bottom of the reinforcing horizontal rod (3). The top inner side of the reinforcing buckle rod (4) is provided with a concave groove, which forms an embedded connection with the convex guide rail preset at the bottom of the reinforcing horizontal rod (3).

4. The adjustable support system for the template of the non-pull-rod drainage ditch in the high and cold region of the plateau according to claim 2, characterized in that: The intermediate support rod (5) and the connecting support rod (7) are combined to form an H-shaped support structure, and the inner surface of the intermediate support rod (5) is in contact with the template surface.

5. The adjustable support system for the template of the non-pull-rod drainage ditch in the high and cold region of the plateau according to claim 4, characterized in that: The opposite side of the intermediate support vertical rod (5) is provided with a positioning groove (6) through processing. The connecting support rod (7) passes through the middle of the two intermediate support vertical rods (5) laterally and forms a rigid connection with the vertical rod through the embedded snap-fit ​​in the positioning groove (6).

6. The adjustable support system for the template of the non-pull-rod drainage ditch in the high and cold region of the plateau according to claim 4, characterized in that: The two ends of the connecting support rod (7) are integrally formed by welding and are provided with positioning protrusions (8). The surface of the positioning protrusions (8) and the positioning groove (6) opened on the upper side of the middle support vertical rod (5) are matched.