A recyclable fixing device facilitating unilateral template construction of a pipeline foundation haunch angle

Abstract

This utility model discloses a reusable fixing device for facilitating the construction of single-sided formwork at the axle angle of a pipeline foundation. Belonging to the technical field of pipeline construction equipment, it includes a pipeline foundation, a vertical fixing block, and a support component whose bottom extends into the pipeline foundation. The top of the support component is fixedly connected to the vertical fixing block via a connector. A single-sided formwork component abuts against the vertical fixing block and the support component. A fixing insert abuts against the bottom of the inner side of the single-sided formwork component, and the bottom of the fixing insert extends into the pipeline foundation. This utility model simplifies the construction process in narrow spaces, significantly improves the deformation resistance and disassembly efficiency of the formwork, and allows the support component to be pulled out as a whole for repeated use, effectively reducing construction costs.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction equipment technology, and in particular to a reusable fixing device that facilitates the construction of single-sided formwork at the axle corner of a pipeline foundation. Background Technology

[0002] In the field of municipal engineering construction, pipeline foundation engineering occupies an important position. The construction of the haunch angle of the pipeline foundation is particularly critical, as its quality directly affects the overall stability and durability of the pipeline structure. The construction of this part usually adopts the method of installing formwork on one side, relying on supports to maintain the shape of the formwork until the concrete is poured.

[0003] Construction at the haunch of pipe foundations is often limited by narrow working spaces. In such confined spaces, traditional formwork fixing methods, which use steel bars and timber for reinforcement, have many drawbacks, including cumbersome procedures, low efficiency, and difficulty in ensuring stability.

[0004] Based on the above-mentioned shortcomings, a single-sided formwork construction fixing device with simple structure, high construction efficiency, good forming quality, low cost and reusability is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a reusable fixing device that facilitates the construction of single-sided formwork at the axle angle of a pipe foundation, thereby solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides a reusable fixing device for facilitating the construction of a single-sided template at the axle angle of a pipe foundation. The device includes a pipe foundation, a vertical fixing block, and a support component whose bottom extends into the pipe foundation. The top of the support component is fixedly connected to the vertical fixing block via a connector. A single-sided template component abuts against the vertical fixing block and the support component. A fixing plug abuts against the bottom inner side of the single-sided template component. The bottom of the fixing plug extends into the pipe foundation.

[0007] Preferably, the support assembly includes multiple diagonal supports and vertical supports, the tops of the diagonal supports and the vertical supports are fixedly connected, the middle is connected by multiple longitudinal supports, and the bottoms of all supports extend into the pipe foundation.

[0008] Preferably, the diagonal supports and the vertical supports are fixedly connected by multiple lateral supports.

[0009] Preferably, the top of the inclined support is provided with a handle.

[0010] Preferably, one end of the connector is fixedly connected to the inner top of the inclined support, and the other end of the connector is fixedly connected to the vertical fixing block.

[0011] Preferably, the inclined support, the connector, and the vertical fixing block are an integral structure.

[0012] Preferably, the single-sided template assembly includes a template and multiple wooden blocks, with the inner top of the template abutting against the outer side of the vertical fixing block, and the inner bottom of the template abutting against the fixing plug.

[0013] Preferably, one side of the timber abuts against the vertical support, and the other side of the timber is fixedly connected to the template.

[0014] Therefore, the reusable fixing device of this utility model, which adopts the above-mentioned structure and facilitates the construction of single-sided formwork at the haunch angle of a pipe foundation, has the following beneficial effects:

[0015] (1) The bottom of the support component can be directly inserted into the pipe foundation. Combined with the vertical fixing block at the top and the fixing plug at the bottom, it forms an effective constraint on the single-sided template component, which significantly simplifies the cumbersome process of relying on temporary welding of steel bars or nailing of wooden blocks. It solves the problems of difficult operation and low efficiency in confined space, and greatly improves the speed of installation and dismantling.

[0016] (2) The support components are connected into a stable overall frame by diagonal support, vertical support, longitudinal support and transverse support, which has strong rigidity; the timber effectively transmits the lateral pressure of the template to the vertical support, the top of the template is limited by the vertical fixing block, and the bottom is pressed by the fixing plug inserted into the pipe foundation, which greatly improves the template's resistance to displacement and deformation during the concrete pouring process, and effectively ensures the forming accuracy and structural quality.

[0017] (3) The device adopts a detachable design. The main support components and connection methods are easy to prefabricate and assemble on site. The handle set on the top provides a convenient lifting point, which allows the entire support component to be pulled out and recycled as a whole. This reusable feature significantly reduces material consumption and labor input, and lowers construction costs. It is especially suitable for pipeline projects that require a lot of repeated construction.

[0018] (4) The device has a simple structure and is easy to operate. It is modular and highly adaptable, and can be widely used in various narrow spaces or fixed scenarios with single-sided templates.

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a front view of an embodiment of the present utility model;

[0021] Figure 2 This is a side view of an embodiment of the present utility model;

[0022] Figure 3 This is a top view of an embodiment of the present utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the support component according to an embodiment of the present utility model;

[0024] Figure label:

[0025] 1. Pipe foundation; 2. Connectors; 3. Vertical fixing blocks; 4. Fixing plugs; 5. Diagonal supports; 6. Vertical supports; 7. Longitudinal supports; 8. Horizontal supports; 9. Handles; 10. Templates; 11. Timber. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Example

[0029] like Figures 1-3 As shown, this utility model discloses a reusable fixing device for facilitating the construction of a single-sided template at the underside of a pipe foundation. It includes a pipe foundation 1, a support assembly with its bottom extending into the pipe foundation 1, and a vertical fixing block 3. The top of the support assembly (near the pipe) is welded to the vertical fixing block 3 (used to limit the top position of the template 10) via a horizontal connector 2. A single-sided template assembly abuts against the vertical fixing block 3 and the support assembly. A fixing insert 4 abuts against the bottom inner side of the single-sided template assembly (the side near the pipe is the inner side, and the side away from the pipe is the outer side). Figure 1 (The right side of the middle is the pipe side). The bottom of the fixing plug 4 extends into the pipe foundation 1. The fixing plug 4 is used to limit the displacement of the bottom of the template 10.

[0030] The support assembly includes multiple diagonal supports 5 and vertical supports 6. The tops of the diagonal supports 5 and vertical supports 6 are welded together (or the tops of the diagonal supports 5 are indirectly connected to the tops of the vertical supports 6 through transverse supports 8). The middle parts of the diagonal supports 5 and vertical supports 6 are fixed by welding multiple longitudinal supports 7. The bottoms of the diagonal supports 5 and vertical supports 6 extend into the pipe foundation 1 to bear the load. The diagonal supports 5, vertical supports 6 and longitudinal supports 7 form a triangular stable structure.

[0031] Multiple horizontal supports 8 are welded between the diagonal supports 5 and between the vertical supports 6 to form a stable triangular prism frame; a handle 9 is provided on the top of the diagonal support 5, which serves as a lifting point for the support component, making it convenient for the device to be moved and disassembled.

[0032] One end of the connector 2 is welded to the top of the inner side of the inclined support 5, and the other end of the connector 2 is welded to the top of the vertical fixing block 3.

[0033] The single-sided template assembly includes a template 10 and multiple timbers 11. The top inner side of the template 10 abuts against the outer side of the vertical fixing block 3, and the bottom inner side of the template 10 abuts against the fixing plug 4. The timbers 11 are used to reinforce the template 10 and transmit the lateral pressure of the template 10 to the vertical support 6. One side of the timber 11 is fixedly connected to the outer side of the template 10 (by steel nails), and the other side of the timber 11 abuts against the vertical support 6.

[0034] The above-mentioned reusable fixing device, which facilitates the construction of single-sided formwork at the haunch angle of the pipe foundation, is used as follows:

[0035] According to the dimensions of template 10 and site requirements, weld the support components according to the connection method of each support, and insert the bottom of the support components into the pipe foundation 1. Insert the upper end of the single-sided template component into the groove formed by the vertical fixing block 3 and the vertical support 6, ensuring the timber 11 is flush against the vertical support 6. Then, insert the fixing plug 4 close to the pipe side of template 10 (into the pipe foundation 1) to fix the bottom of template 10. If there is a large gap between the top of template 10 and the vertical fixing block 3, a shim can be added at the gap to ensure the top of template 10 is flush against the vertical support 6, thus fixing template 10. When template 10 needs to be removed, use handle 9 to pull out the support components, allowing for the recycling of the support components, single-sided template components, and fixing plug 4 for reuse.

[0036] like Figure 4 As shown, in this embodiment, the diagonal support 5, the connector 2, and the vertical fixing block 3 are an integral steel reinforcement structure. During processing, one end of the diagonal support 5 is bent into a "┐" shape. The transverse support 8, longitudinal support 7, and vertical support 6 are all ordinary steel bars used on site, making them readily available.

[0037] The horizontal supports 8 are horizontal, with one on the top and one on the bottom of the device near the template 10 (specifically between the vertical supports 6), and one on the side away from the pipe, for a total of three. The upper horizontal support 8 is welded together with the diagonal support 5 and the vertical support 6; the lower horizontal support 8 is welded together with the vertical support 6; and the outer horizontal support 8 is welded together with the diagonal support 5 and the longitudinal support 7.

[0038] Two diagonal supports 5 are symmetrically arranged. The top of each support, with connector 2 and vertical fixing block 3, is used to fix the template 10, and the bottom is inserted into the pipe foundation 1 to bear the load. The diagonal supports 5 are welded together with the upper horizontal support 8, the external horizontal support 8, the longitudinal support 7, and the vertical support 6 to form a whole.

[0039] The longitudinal support 7 is horizontal and consists of two supports, welded between the diagonal support 5 and the vertical support 6 on the same side. Together with the diagonal support 5 and the vertical support 6, they form a triangle, making the whole structure more stable.

[0040] The vertical support 6 consists of two supports, which are fixed to the diagonal support 5, longitudinal support 7, and transverse support 8 by welding. The lower end is inserted into the pipe foundation 1 to bear the load.

[0041] The handle 9 is rectangular and is composed of a horizontal hollow steel pipe welded to two vertical connecting sleeves. It is set on top of the upper horizontal support 8.

[0042] When constructing the single-sided formwork at the pipe foundation axle, the pipe side formwork 10 is fixed at the base with short steel bars (fixing inserts 4) and the top is fixed with a bent top of the diagonal support 5, while the non-pipe side is fixed with timber 11.

[0043] In addition, by controlling the welding and assembly of steel bars of different lengths, it is also suitable for other narrow spaces or single-sided formwork installation and fixing conditions. It has a wide range of applications, high overall stability, simple assembly and connection, is reusable, and is highly practical.

[0044] Therefore, this utility model provides a reusable fixing device for facilitating the construction of single-sided formwork at the axle corner of a pipe foundation. Through the support components inserted into the pipe foundation at the bottom, the vertical fixing block at the top, and the fixing plug at the bottom, the single-sided formwork is coordinated and constrained. Combined with a stable frame formed by multi-directional support welding, this significantly simplifies the construction process in narrow spaces and improves disassembly and assembly efficiency. Simultaneously, the use of timber effectively transmits the lateral pressure of the concrete, and the limiting mechanisms at the top and bottom of the formwork greatly enhance its resistance to deformation, ensuring molding quality. Its detachable design facilitates overall removal and recycling, achieving efficient turnover and reducing the cost of repeated construction. The overall structure is simple, easy to operate, and highly adaptable, suitable for various narrow space single-sided formwork fixing scenarios.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A reusable fixing device for facilitating the construction of single-sided formwork at the haunch angle of a pipe foundation, characterized in that: The device includes a pipe foundation, a vertical fixing block, and a support assembly whose bottom extends into the pipe foundation. The top of the support assembly is fixedly connected to the vertical fixing block via a connector. A single-sided template assembly abuts against the vertical fixing block and the support assembly. A fixing plug abuts against the bottom of the inner side of the single-sided template assembly. The bottom of the fixing plug extends into the pipe foundation.

2. The reusable fixing device for facilitating the construction of single-sided formwork at the haunch angle of a pipe foundation according to claim 1, characterized in that: The support assembly includes multiple diagonal supports and vertical supports. The tops of the diagonal supports are fixedly connected to the tops of the vertical supports, the middle sections are connected by multiple longitudinal supports, and the bottoms of all supports extend into the pipe foundation.

3. A reusable fixing device for facilitating the construction of single-sided formwork at the haunch angle of a pipe foundation, as described in claim 2, is characterized in that: The diagonal supports and the vertical supports are all fixedly connected by multiple horizontal supports.

4. A reusable fixing device for facilitating the construction of single-sided formwork at the haunch angle of a pipe foundation, as described in claim 2, is characterized in that: The top of the inclined support is provided with a handle.

5. A reusable fixing device for facilitating the construction of single-sided formwork at the haunch angle of a pipe foundation, as described in claim 2, is characterized in that: One end of the connector is fixedly connected to the inner top of the inclined support, and the other end of the connector is fixedly connected to the vertical fixing block.

6. A reusable fixing device for facilitating the construction of single-sided formwork at the haunch angle of a pipe foundation, as described in claim 2, is characterized in that: The single-sided template assembly includes a template and multiple wooden blocks. The top inner side of the template abuts against the outer side of the vertical fixing block, and the bottom inner side of the template abuts against the fixing plug.

7. A reusable fixing device for facilitating the construction of single-sided formwork at the haunch angle of a pipe foundation, as described in claim 6, is characterized in that: One side of the timber abuts against the vertical support, and the other side of the timber is fixedly connected to the template.

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