Assembled formwork support for light steel formwork trolley
By designing an assembled formwork support for a lightweight steel formwork trolley, the problems of long construction cycles and resource waste in the construction of small drainage tunnels using conventional steel formwork trolleys were solved, enabling flexible adjustments and efficient construction.
Patent Information
- Application Number
- CN202520555593.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Conventional steel formwork trolleys used for the sidewall lining construction of small drainage tunnels suffer from problems such as long construction cycles, resource waste, and poor adaptability.
Design an assembled formwork support for a lightweight steel formwork trolley, comprising several individual arch frames and connecting beams, which are pre-assembled to form a formwork support that can be installed as a whole, adapting to the needs of different construction tunnel lengths.
It enables flexible adjustment based on the length of the construction tunnel section, shortens the construction cycle, avoids resource waste, and improves construction efficiency and stability. It is suitable for the sidewall lining construction of medium and small diameter unpressurized drainage tunnels.
Smart Images
Figure CN223793491U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water conservancy and hydropower engineering technology, specifically, it relates to an assembled template support for a lightweight steel formwork trolley. Background Technology
[0002] In the early stages of hydropower station construction, small, unpressurized drainage tunnels are required for river valley diversion. Due to the characteristics of small drainage tunnels, which are usually short and have low clearance, the drainage tunnels are designed with full-section lining in areas with poor surrounding rock and only the bottom slab and sidewalls are lining in areas with good surrounding rock. In actual construction, the tunnels are generally located in areas with good geological conditions. Except for the poor surrounding rock at the tunnel inlet and outlet, the surrounding rock of such drainage tunnels is generally good.
[0003] Therefore, for the lining concrete construction of small unpressurized drainage tunnels, only the tunnel sections with poor surrounding rock at the inlet and outlet need to be lined with sidewalls, and the required construction section length is uncertain. This makes conventional steel formwork trolleys unsuitable for the sidewall lining construction of small drainage tunnels. If conventional steel formwork trolleys are used to construct the lining concrete of small drainage tunnels, not only will the construction period be long, but it will also waste resources. At the same time, it is not convenient to make adaptive adjustments to the concrete pouring construction length of the steel formwork trolley according to the length of the sidewall lining construction section. Utility Model Content
[0004] To address or partially address the problems existing in related technologies, this utility model provides an assembled template support for a lightweight steel formwork trolley, aiming to solve the problems of long construction cycles, resource waste, and poor adaptability when using conventional steel formwork trolleys for the sidewall lining construction of small drainage tunnels.
[0005] This application provides an assembled template support for a lightweight steel formwork trolley, comprising: several single arch frames, each arch frame including a first column, a second column, a top crossbeam, and diagonal bracing rods. The first column and the second column are arranged parallel and vertically. The two ends of the top crossbeam are fixedly installed on the top of the first column and the second column. A diagonal bracing rod is obliquely fixedly installed between the top crossbeam and the first column and the second column, respectively.
[0006] The bottom beam consists of two horizontally parallel beams corresponding to the first and second columns, with each individual arch frame vertically and fixedly installed on the bottom beam at intervals.
[0007] The middle connecting beam and the top connecting beam are installed horizontally and fixedly between the columns on the same side of adjacent single arch frames, and the top connecting beam is installed horizontally and fixedly between the top crossbeams of adjacent single arch frames.
[0008] In one alternative, a first inclined connecting beam and a second inclined connecting beam are also included;
[0009] The first and second inclined connecting beams are symmetrically arranged on the upper and lower sides of the central connecting beam, and the first and second inclined connecting beams are inclined and fixedly installed between the columns on the same side of adjacent single arch frames.
[0010] In one alternative, two adjacent first oblique connecting beams form a "V" or "inverted V" structure, two adjacent second oblique connecting beams form a "V" or "inverted V" structure, and adjacent first oblique connecting beams and second oblique connecting beams form a "<" or ">" structure.
[0011] In one alternative design, the first column, the second column, the top beam, the diagonal brace, the bottom beam, the middle connecting beam, the top connecting beam, the first diagonal connecting beam, and the second diagonal connecting beam are all I-beams.
[0012] In one alternative, the bottom beam consists of two parallel, upright I-beams, which are fixedly connected together.
[0013] In one alternative configuration, one side wing of the first and second columns in each individual arch frame is set outwards;
[0014] The top crossbeams in each individual arch frame are fixedly installed on top of the first and second columns in an upright position;
[0015] The diagonal bracing in each individual arch frame is installed at an angle between the top crossbeam and the first and second columns, corresponding to the top crossbeam and the first and second columns.
[0016] In one alternative, the top connecting beam is fixedly installed between the top crossbeams of adjacent single arch frames in an upright position, corresponding to the top crossbeams.
[0017] The central connecting beam is fixedly installed between the columns on the same side of adjacent single arch frames, corresponding to the first and second columns, in an upright position;
[0018] The first and second inclined connecting beams, corresponding to the first and second columns, are installed at an angle between the columns on the same side of adjacent single arch frames in an upright position.
[0019] The beneficial effects of this utility model are:
[0020] This utility model uses a first column, a second column, a top crossbeam, and diagonal bracing rods welded together to form a pre-assembled single arch frame that can be installed as a whole. A suitable number of single arch frames and corresponding connecting beams can be installed according to the length of the construction tunnel section. This allows for adaptive adjustment of the concrete pouring length of the steel formwork trolley based on the length of the tunnel section for sidewall lining construction. It is convenient, efficient, and highly adaptable, suitable for sidewall lining construction of medium and small diameter unpressurized drainage tunnels. It is economical and practical, effectively shortening the construction cycle and avoiding resource waste caused by using large materials for small purposes compared to using conventional steel formwork trolleys.
[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 from these drawings without creative effort.
[0023] Figure 1 This is a front view schematic diagram of the lightweight steel formwork trolley support of this application;
[0024] Figure 2 This is a right-side schematic diagram of the lightweight steel formwork trolley support of this application.
[0025] The labels in the attached diagram are as follows: 1-Single arch frame, 11-First column, 12-Second column, 13-Top crossbeam, 14-Diagonal brace; 2-Bottom beam; 3-Middle connecting beam; 4-Top connecting beam; 5-First diagonal connecting beam; 6-Second diagonal connecting beam. Detailed Implementation
[0026] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0030] In the existing technology, for the lining concrete construction of small unpressurized drainage tunnels, since only the tunnel sections with poor surrounding rock at the inlet and outlet of the drainage tunnel need to be lined with sidewalls, the conventional steel formwork trolley has problems such as long construction period, waste of resources, and difficulty in adapting the concrete pouring construction length of the steel formwork trolley to the length of the tunnel section to be lined with the sidewall.
[0031] To address the aforementioned problems, this application proposes improvements and innovations, including the following embodiments.
[0032] In some implementations, please refer to Figure 1 , Figure 2 This application provides an assembled template support for a lightweight steel formwork trolley, including several single arch frames 1. Each single arch frame 1 includes a first column 11, a second column 12, a top crossbeam 13, and diagonal bracing rods 14. The first column 11 and the second column 12 are arranged parallel and vertically. The two ends of the top crossbeam 13 are fixedly installed on the top of the first column 11 and the second column 12. A diagonal bracing rod 14 is obliquely fixedly installed between the top crossbeam 13 and the first column 11 and the second column 12, respectively.
[0033] It includes a bottom beam 2, with two bottom beams arranged horizontally parallel to the first column 11 and the second column 12. Each single arch frame 1 is vertically and fixedly installed on the bottom beam 2 at intervals. It also includes a middle connecting beam 3 and a top connecting beam 4. The middle connecting beam 3 is horizontally and fixedly installed between the columns on the same side of adjacent single arch frames 1, and the top connecting beam 4 is horizontally and fixedly installed between the top crossbeams 13 of adjacent single arch frames 1.
[0034] In this embodiment, the assembled template support for the lightweight steel formwork trolley also includes a first inclined connecting beam 5 and a second inclined connecting beam 6; the first inclined connecting beam 5 and the second inclined connecting beam 6 are symmetrically arranged on the upper and lower sides of the central connecting beam 3, and the first inclined connecting beam 5 and the second inclined connecting beam 6 are inclinedly fixed between the same-side columns of adjacent single arch frames 1.
[0035] Thus, a single arch frame 1, which can be installed as a whole, is formed by welding and fixing the first column 11, the second column 12, the top crossbeam 13, and the diagonal brace 14. The single arch frame 1 can be pre-assembled in the steel reinforcement processing plant, so that an appropriate number of single arch frames 1 and corresponding connecting beams can be installed according to the length of the construction tunnel section before the sidewall lining construction. This facilitates the adaptive adjustment of the concrete pouring construction length of the steel formwork trolley according to the length of the sidewall lining construction tunnel section. The installation is convenient, efficient, and highly adaptable. In specific applications, the bottom beam 2 of the assembled template support of this lightweight steel formwork trolley is fixedly installed on the trolley's walking system. Templates are assembled on the left and right sides of the support, thus forming a trolley system that can be used for the sidewall lining construction of drainage tunnels. It is suitable for the sidewall lining construction of medium and small diameter unpressurized drainage tunnels. It is economical and practical. Compared with the use of conventional steel formwork trolleys, it can effectively shorten the construction cycle and avoid the waste of resources caused by using large materials for small purposes.
[0036] Specifically, when it is necessary to carry out sidewall lining construction on the entrance section of a small unpressurized drainage tunnel, first measure the length of the tunnel section that needs sidewall lining construction, then install a suitable number of single arch frames 1 on the bottom beam 2, and weld and fix the middle connecting beam 3, the top connecting beam 4, the first inclined connecting beam 5, and the second inclined connecting beam 6, thereby forming a formwork support that matches the length of the concrete pouring construction with the length of the tunnel section that needs sidewall lining construction. Then, a suitable number of formwork can be assembled on the assembled formwork support of this lightweight steel formwork trolley.
[0037] In this embodiment, as Figure 2 As shown, the two adjacent first oblique connecting beams 5 form a "V" or "inverted V" structure, the two adjacent second oblique connecting beams 6 form a "V" or "inverted V" structure, and the adjacent first oblique connecting beam 5 and second oblique connecting beam 6 form a "<" or ">" structure.
[0038] Thus, by symmetrically arranging the first oblique connecting beam 5 and the second oblique connecting beam 6 on the upper and lower sides of the middle connecting beam 3, that is, by obliquely fixing the first oblique connecting beam 5 to the position between the middle connecting beam 3 and the top connecting beam 4 between the same-side columns of adjacent single arch frames 1, and obliquely fixing the second oblique connecting beam 6 to the position between the middle connecting beam 3 and the bottom beam 2 between the same-side columns of adjacent single arch frames 1, and by installing each first oblique connecting beam 5 in a sequential end-to-end connection manner between each single arch frame 1, each second oblique connecting beam 6... The beams 6 are installed sequentially end-to-end between each single arch frame 1, so that the first diagonal connecting beam 5 forms a triangular structure with the first column 11, the second column 12, the middle connecting beam 3, and the top connecting beam 4, and the second diagonal connecting beam 6 forms a triangular structure with the first column 11, the second column 12, the bottom beam 2, and the middle connecting beam 3. This can effectively improve the connection stability between adjacent single arch frames 1, and thus effectively improve the structural stability of the assembled formwork support of this lightweight steel formwork trolley, which is conducive to ensuring the construction quality of the side wall lining.
[0039] In this embodiment, the first column 11, the second column 12, the top crossbeam 13, the diagonal brace 14, the bottom beam 2, the middle connecting beam 3, the top connecting beam 4, the first diagonal connecting beam 5, and the second diagonal connecting beam 6 are all No. 18 I-beams. The bottom beam 2 consists of two parallel, vertically placed I-beams, which are fixedly connected. Specifically, the webs of the two I-beams are parallel and vertically arranged, and the upper and lower flanges of the two I-beams are welded and fixed. Thus, the two parallel, vertically placed I-beams form a single bottom beam 2, effectively ensuring the structural strength and load-bearing capacity of the bottom beam 2.
[0040] In this embodiment, one side of the wing plate of the first column 11 and the second column 12 in each single arch frame 1 is arranged outward, that is, one side of the wing plate of the I-beam serving as the first column 11 and the second column 12 is arranged outward, so as to provide installation space for the template through the outer plane of the wing plate of the I-beam.
[0041] In each individual arch frame 1, the top crossbeam 13 is fixedly installed vertically on top of the first column 11 and the second column 12, corresponding to the first column 11 and the second column 12. The diagonal brace 14 in each individual arch frame 1 is also fixedly installed at an angle between the top crossbeam 13 and the first column 11 and the second column 12, corresponding to the top crossbeam 13 and the first column 11 and the second column 12. Specifically, the lower flange of the I-beam serving as the top crossbeam 13 is welded and fixed to the upper end of the first column 11 and the second column 12, and the two ends of the I-beam serving as the diagonal brace 14 are respectively connected to the top crossbeam 13. The flanges of the I-beams of the top beam 13 and the first and second columns 11 and 12 are welded and fixed, which makes the contact surface between the top beam 13 and the first and second columns 11 and 12 large and the number of welding points large. The contact surface between the diagonal brace 14 and the top beam 13, the first and second columns 11 and 12 is also large and the number of welding points is large. Furthermore, the top beam 13 and the diagonal brace 14 are installed in an upright position. In this way, the connection stability between the first column 11, the second column 12, the top beam 13 and the diagonal brace 14 can be effectively improved, and the structural strength of the single arch frame 1 is high.
[0042] In this embodiment, the top connecting beam 4 is fixedly installed vertically between the top crossbeams 13 of adjacent single arch frames 1; the middle connecting beam 3 is fixedly installed vertically between the columns on the same side of adjacent single arch frames 1, corresponding to the first column 11 and the second column 12; the first diagonal connecting beam 5 and the second diagonal connecting beam 6 are fixedly installed obliquely between the columns on the same side of adjacent single arch frames 1, corresponding to the first column 11 and the second column 12. This effectively improves the connection stability between adjacent single arch frames 1, thereby effectively improving the structural stability of the assembled formwork support of this lightweight steel formwork trolley, which is beneficial to ensuring the construction quality of the sidewall lining.
[0043] The working process of this utility model:
[0044] When constructing sidewall lining for the entrance section of a small, unpressurized drainage tunnel, first measure the length of the section requiring sidewall lining. Install a suitable number of single arch frames 1 above the bottom beam 2, and weld and fix the middle connecting beam 3, the top connecting beam 4, the first inclined connecting beam 5, and the second inclined connecting beam 6. This forms a formwork support that matches the length of the concrete pouring construction to the length of the section requiring sidewall lining. Then, assemble a suitable number of formwork on the assembled formwork support of this lightweight steel formwork trolley. Subsequently, lay the trolley's traveling rails on the section of the drainage tunnel requiring sidewall lining and outside the tunnel. Use a crane to lift and place the trolley onto the rails, and then use a winch to pull the trolley to the section to be constructed. After the trolley is in place, adjust the formwork position to begin concrete pouring. After pouring, once the concrete strength meets the demolding requirements, demolding and formwork removal can begin. Then, use a winch to pull the trolley out of the tunnel or to the next section to be constructed.
[0045] Finally, it should be noted that although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, all of which should be included within the protection scope of this application.
Claims
1. An assembled template support for a lightweight steel formwork trolley, characterized in that, include: A number of single arch frames (1), each single arch frame (1) includes a first column (11), a second column (12), a top crossbeam (13), and diagonal bracing (14). The first column (11) and the second column (12) are arranged vertically and parallel to each other. The two ends of the top crossbeam (13) are fixedly installed on the top of the first column (11) and the second column (12). A diagonal bracing (14) is fixedly installed at an incline between the top crossbeam (13) and the first column (11) and the second column (12), respectively. The bottom beam (2) has two parallel horizontal beams corresponding to the first column (11) and the second column (12), and each of the single arch frames (1) is vertically and fixedly installed on the bottom beam (2) at intervals. The middle connecting beam (3) and the top connecting beam (4) are horizontally fixed between the columns on the same side of adjacent single arch frames (1) and the top connecting beam (4) is horizontally fixed between the top crossbeams (13) of adjacent single arch frames (1).
2. The assembled template support for a lightweight steel formwork trolley according to claim 1, characterized in that: It also includes the first inclined connecting beam (5) and the second inclined connecting beam (6); The first oblique connecting beam (5) and the second oblique connecting beam (6) are symmetrically arranged on the upper and lower sides of the middle connecting beam (3), and the first oblique connecting beam (5) and the second oblique connecting beam (6) are obliquely fixed between the columns on the same side of the adjacent single arch frame (1).
3. The assembled template support for a lightweight steel formwork trolley according to claim 2, characterized in that: The two adjacent first oblique connecting beams (5) form a "V" or "inverted V" structure, the two adjacent second oblique connecting beams (6) form a "V" or "inverted V" structure, and the adjacent first oblique connecting beams (5) and the second oblique connecting beams (6) form a "<" or ">" structure.
4. The assembled template support for a lightweight steel formwork trolley according to claim 2, characterized in that: The first column (11), the second column (12), the top crossbeam (13), the diagonal brace (14), the bottom beam (2), the middle connecting beam (3), the top connecting beam (4), the first diagonal connecting beam (5), and the second diagonal connecting beam (6) are all I-beams.
5. The assembled template support for a lightweight steel formwork trolley according to claim 4, characterized in that: The bottom beam (2) consists of two parallel I-beams placed vertically, and the two I-beams are fixedly connected.
6. The assembled template support for a lightweight steel formwork trolley according to claim 4, characterized in that: In each of the single arch frames (1), one side of the wing plate of the first column (11) and the second column (12) faces outward; The top crossbeam (13) in each of the single arch frames (1) is fixedly installed on the top of the first column (11) and the second column (12) in an upright position; The diagonal bracing (14) in each of the single arch frames (1) is installed in an upright position between the top beam (13) and the first column (11) and the second column (12), corresponding to the top beam (13) and the first column (11) and the second column (12).
7. An assembled template support for a lightweight steel formwork trolley according to claim 6, characterized in that: The top connecting beam (4) is fixedly installed between the top crossbeams (13) of adjacent single arch frames (1) in a vertical position, corresponding to the top crossbeam (13). The central connecting beam (3) is fixedly installed between the columns on the same side of adjacent single arch frames (1) in a standing position, corresponding to the first column (11) and the second column (12); The first oblique connecting beam (5) and the second oblique connecting beam (6) are installed in an upright position and are fixedly installed between the columns on the same side of the adjacent single arch frame (1) corresponding to the first column (11) and the second column (12).