Combined ABS (Acrylonitrile Butadiene Styrene) template structure for underground passage full-section pouring

Abstract

The utility model discloses a combined ABS (Acrylonitrile Butadiene Styrene) template structure for underground passage full-section pouring, which belongs to the technical field of underground passage construction and comprises a full-section pipeline template assembly, the full-section pipeline template assembly comprises an outer template pipeline and an inner template pipeline arranged in the outer template pipeline, concrete is poured in a gap between the outer formwork pipeline and the inner formwork pipeline, a plurality of anti-dislocation tensioning assemblies are symmetrically arranged on the outer formwork pipeline and the inner formwork pipeline and located between the outer walls of the two ends, and the outer formwork pipeline and the inner formwork pipeline are fixed together through the anti-dislocation tensioning assemblies at intervals. The peripheral side of the outer formwork pipeline and the middle position of each side face are connected with the inner formwork pipeline through fastening locking pieces. According to the utility model, the risks of deformation and dislocation are reduced, the limiting fixing ring, the locking nut and other components provide additional supporting and fastening force, and the deformation resistance of the template is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to underground passage construction technical field especially a combined ABS formwork structure for full section pouring of underground passage. BACKGROUND

[0002] In the construction of underground passages, the traditional construction method usually adopts the way of segmented pouring or prefabricated component assembly. These methods have problems such as long construction period, low efficiency, poor structural stability, etc. Especially in the process of concrete pouring, the stability and accuracy of the formwork play a crucial role in the construction quality of the final structure.

[0003] However, the existing formwork technology often has some shortcomings, such as: the connection between the existing formworks is not stable enough, lacks effective anti-dislocation and fastening structure, the formwork is prone to dislocation or deformation during construction due to external forces, poor structural stability can cause size errors, uneven surface and even structural cracks in the poured concrete structure, affecting the service life and safety of the underground passage, in severe cases, it may cause the structure to collapse, causing casualties and property losses. INVENTION CONTENTS

[0004] The purpose of the utility model is to provide a combined ABS formwork structure for full section pouring of underground passages to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a combined ABS formwork structure for full section pouring of underground passages, comprising a full section pipeline formwork assembly, the full section pipeline formwork assembly comprises an outer formwork pipeline and an inner formwork pipeline placed in the outer formwork pipeline, the gap between the outer formwork pipeline and the inner formwork pipeline is filled with concrete, a plurality of anti-dislocation tensioning components are symmetrically arranged between the outer formwork pipeline and the inner formwork pipeline and located between the outer walls at both ends, the anti-dislocation tensioning components keep the outer formwork pipeline and the inner formwork pipeline fixed at a distance apart, the peripheral side of the outer formwork pipeline and the inner formwork pipeline are connected together by fastening locking pieces at the middle position of each side face.

[0006] Preferably, each anti-dislocation tensioning component comprises a clamping fixed plate and a limiting clamping plate symmetrically and integrally connected to the inner wall of the clamping fixed plate, a plurality of limiting clamping grooves for clamping the limiting clamping plate are symmetrically provided on the outer walls of the outer formwork pipeline and the inner formwork pipeline.

[0007] Preferably, the peripheral side of the outer formwork pipeline and the inner wall of the inner formwork pipeline are symmetrically provided with first screw holes, and each first screw hole penetrates into the adjacent limiting clamping groove.

[0008] Preferably, the second screw hole is longitudinally arranged in the inner part of each limiting clamping plate, the first screw hole and the second screw hole are arranged in alignment, and the outer formwork pipe and the inner formwork pipe are fixedly connected together by bolts penetrating through the first screw hole and the second screw hole and the upper and lower limiting clamping plates.

[0009] Preferably, the intermediate position of each side of the outer formwork pipe is provided with a counterbore, the fastening locking member includes a locking plug inserted from each counterbore, a limiting fixing ring welded on the lower part of the peripheral side of the locking plug, and an external thread tooth path arranged on the peripheral side of the bottom end of the locking plug.

[0010] Preferably, the free end of each locking plug penetrates into the inner part of the inner formwork pipe, and the limiting fixing ring abuts against the outer wall of the inner formwork pipe, so that the limiting fixing ring supports the position of the inner formwork pipe on the outer side of the inner formwork pipe.

[0011] Preferably, the free end of the locking plug is sleeved with a circular ring gasket after penetrating through the inner formwork pipe, and a locking nut is threadedly connected to the external thread tooth path in the inner cavity of the inner formwork pipe, and the locking nut locks the locking plug in the inner formwork pipe.

[0012] Preferably, the four corners of the inner formwork pipe are provided with detachable inner mold chamfer plates, the frame of the inner formwork pipe is provided with clamping grooves on the inner wall of one side of the detachable inner mold chamfer plate, and the two outer walls of each detachable inner mold chamfer plate are integrally connected with clamping protruding plates inserted into the clamping grooves.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are:

[0014] The combined ABS formwork structure for full-face pouring of the underground passage is used in cooperation with the inner and outer formwork, and is provided with anti-misalignment tensioning components and fastening locking members, so as to ensure the stability of the formwork structure, reduce the deformation and misalignment risk, provide additional support and fastening force by the limiting fixing ring and the locking nut and the like components, and enhance the anti-deformation ability of the formwork; the formwork structure can be customized according to the size and shape of different underground passages, has strong adaptability, the modular design allows combination and adjustment according to actual needs, and improves the flexibility of construction.

[0015] The anti-misalignment tensioning components arranged in symmetry and the fastening locking members arranged at the intermediate position simplify the installation and fixing process of the formwork, reduce the construction complexity, the cooperation of the inner and outer formwork and the support of the fastening components enhance the overall strength of the structure after pouring. BRIEF DESCRIPTION OF DRAWINGS

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the limiting slot of this utility model;

[0019] Figure 3 This is a schematic diagram of the snap-fit ​​fixing plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled state of the locking nut of this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled state of the detachable inner mold chamfer plate of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Full-section pipe formwork assembly; 2. Outer formwork pipe; 3. Inner formwork pipe; 4. Anti-misalignment tensioning component; 5. Fastening and locking component; 6. Snap-fit ​​fixing plate; 7. Locking rod; 8. Limiting slot; 9. First screw hole; 10. Limiting plate; 11. Second screw hole; 12. Limiting fixing ring; 13. Circular ring washer; 14. Locking nut; 15. External thread; 16. Detachable inner mold chamfer plate; 17. Snap-fit ​​groove; 18. Snap-fit ​​protrusion. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0026] This embodiment provides, for example Figures 1 to 5The diagram shows a combined ABS formwork structure for full-section casting of underground passages, including a full-section pipe formwork assembly 1. The full-section pipe formwork assembly 1 includes an outer formwork pipe 2 and an inner formwork pipe 3 placed inside the outer formwork pipe 2. Concrete is poured into the gap between the outer formwork pipe 2 and the inner formwork pipe 3. Multiple anti-misalignment tensioning components 4 are symmetrically arranged between the outer formwork pipe 2 and the inner formwork pipe 3 at both ends. The anti-misalignment tensioning components 4 fix the outer formwork pipe 2 and the inner formwork pipe 3 together at a distance. The periphery of the outer formwork pipe 2 and the middle position of each side are connected to the inner formwork pipe 3 by fastening locking parts 5.

[0027] In this embodiment, each anti-misalignment tensioning component 4 includes a snap-fit ​​fixing plate 6 and a limiting plate 10 symmetrically and integrally connected to the inner wall of the snap-fit ​​fixing plate 6. Multiple limiting slots 8 for the limiting plate 10 to snap into are symmetrically opened on the outer walls of both ends of the outer template pipe 2 and the inner template pipe 3. Each outer wall of the outer template pipe 2 and the inner wall of the inner template pipe 3 are symmetrically opened with a first screw hole 9, and each first screw hole 9 penetrates into the adjacent limiting slot 8.

[0028] In this embodiment, each limiting plate 10 has a second screw hole 11 longitudinally opened inside. The first screw hole 9 and the second screw hole 11 are aligned. The outer template pipe 2 and the inner template pipe 3 are fixedly connected to the limiting plates 10 at the upper and lower positions by bolts passing through the first screw hole 9 and the second screw hole 11 respectively. A countersunk hole is opened in the middle of each side of the outer template pipe 2. The fastening locking component 5 includes a locking rod 7 inserted into each countersunk hole, a limiting fixing ring 12 welded to the lower periphery of the locking rod 7, and an external thread 15 provided on the periphery of the bottom end of the locking rod 7.

[0029] In this embodiment, the free end of each locking rod 7 penetrates into the interior of the inner template pipe 3, and the limiting and fixing ring 12 abuts against the outer wall of the inner template pipe 3, so that the limiting and fixing ring 12 supports and limits the position of the inner template pipe 3 on the outside of the inner template pipe 3. After the free end of the locking rod 7 penetrates the inner template pipe 3, a circular gasket 13 is fitted from the inner cavity of the inner template pipe 3 and extends to the outer thread 15 in the inner cavity of the inner template pipe 3. A locking nut 14 is threaded around the external thread 15 and the locking nut 14 locks the locking rod 7 inside the inner template pipe 3.

[0030] In this embodiment, each of the four corners of the inner template pipe 3 is provided with a detachable inner template chamfer plate 16. The inner wall of the frame of the inner template pipe 3 that is close to the detachable inner template chamfer plate 16 is provided with a snap-fit ​​groove 17. Both outer walls of each detachable inner template chamfer plate 16 are integrally connected with a snap-fit ​​protrusion 18 for insertion into the snap-fit ​​groove 17.

[0031] Working principle:

[0032] The underground passage uses a combined ABS formwork structure for full-section concrete pouring. A full-section pipe formwork assembly 1 is prepared, with the inner formwork pipe 3 placed inside the outer formwork pipe 2, ensuring the gap between them is sufficient for concrete pouring. Multiple anti-misalignment tensioning components 4 are symmetrically installed between the outer walls of the outer and inner formwork pipes 2 and 3. Each anti-misalignment tensioning component 4 includes a snap-fit ​​fixing plate 6 and a limiting plate 10. The limiting plate 10 is snapped into the limiting slots 8 opened on the outer and inner formwork pipes 2 and 3 to maintain the distance between the inner and outer formworks. At the middle position of each side of the outer formwork pipe 2, the outer formwork pipe 2 and the inner formwork pipe 3 are connected together by fastening locking devices 5.

[0033] The fastening and locking component 5 includes a locking rod 7, a limiting and fixing ring 12, and a locking nut 14. The locking rod 7 is inserted into the countersunk hole of the outer template pipe 2 and extends into the interior of the inner template pipe 3. Bolts are used to pass through and fix the rod in the first screw hole 9 and the second screw hole 11 symmetrically opened on the outer wall of the outer template pipe 2 and the inner wall of the inner template pipe 3, ensuring the stability of the anti-misalignment tensioning component 4.

[0034] The limiting and fixing ring 12 provides support and limitation on the outside of the inner formwork pipe 3 to prevent the inner formwork pipe 3 from shifting during the pouring process. The free end of the locking rod 7 is locked inside the inner formwork pipe 3 by the ring washer 13 and the locking nut 14 to further enhance stability. Removable inner formwork chamfer plates 16 are installed at the four corners of the inner formwork pipe 3 and are inserted into the snap-fit ​​grooves 17 on the frame of the inner formwork pipe 3 by snap-fit ​​protrusions 18 to ensure the stability of the chamfer plates.

[0035] After the template is installed and fixed, pour concrete into the gap between the inner and outer templates and wait for the concrete to solidify to the design strength. After the concrete has solidified, first remove the bolts in the fastening locking parts 5 and the anti-misalignment tensioning components 4, loosen the locking nuts 14, and remove the locking rods 7. Then remove the inner template pipes 3 and the outer template pipes 2, as well as the detachable inner template chamfer plate 16.

[0036] After completion, the disassembled templates are cleaned and maintained for future use.

[0037] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined ABS formwork structure for full-section casting of underground passages, comprising a full-section pipe formwork assembly (1), characterized in that: The full-section pipe formwork assembly (1) includes an outer formwork pipe (2) and an inner formwork pipe (3) placed in the outer formwork pipe (2). Concrete is poured into the gap between the outer formwork pipe (2) and the inner formwork pipe (3). Multiple anti-misalignment tensioning components (4) are symmetrically arranged between the outer formwork pipe (2) and the inner formwork pipe (3) at both ends. The anti-misalignment tensioning components (4) fix the outer formwork pipe (2) and the inner formwork pipe (3) together at a distance. The periphery of the outer formwork pipe (2) and the middle position of each side are connected to the inner formwork pipe (3) by fastening locking parts (5).

2. The combined ABS formwork structure for full-section casting of underground passages according to claim 1, characterized in that: Each of the anti-misalignment tensioning components (4) includes a snap-fit ​​fixing plate (6) and a limiting plate (10) symmetrically and integrally connected to the inner wall of the snap-fit ​​fixing plate (6). Multiple limiting slots (8) for the limiting plate (10) to snap into are symmetrically opened on the outer walls of both ends of the outer template pipe (2) and the inner template pipe (3).

3. The combined ABS formwork structure for full-section casting of underground passages according to claim 2, characterized in that: Each outer wall of the outer template pipe (2) and the inner wall of the inner template pipe (3) are symmetrically provided with a first screw hole (9), and each first screw hole (9) is connected to an adjacent limiting slot (8).

4. The combined ABS formwork structure for full-section casting of underground passages according to claim 3, characterized in that: Each of the limiting plates (10) has a second screw hole (11) longitudinally opened inside. The first screw hole (9) and the second screw hole (11) are aligned. The outer template pipe (2) and the inner template pipe (3) are fixedly connected to the limiting plates (10) at the upper and lower positions by bolts passing through the first screw hole (9) and the second screw hole (11).

5. A combined ABS formwork structure for full-section casting of underground passages according to claim 4, characterized in that: The outer template pipe (2) has a countersunk hole at the middle of each side of its periphery. The fastening locking component (5) includes a locking rod (7) inserted into each countersunk hole, a limiting fixing ring (12) welded to the lower periphery of the locking rod (7), and an external thread (15) provided on the periphery of the bottom end of the locking rod (7).

6. A combined ABS formwork structure for full-section casting of underground passages according to claim 5, characterized in that: The free end of each locking rod (7) penetrates into the interior of the inner template pipe (3), and the limiting fixing ring (12) abuts against the outer wall of the inner template pipe (3), so that the limiting fixing ring (12) supports and limits the position of the inner template pipe (3) on the outside of the inner template pipe (3).

7. A combined ABS formwork structure for full-section casting of underground passages according to claim 6, characterized in that: The free end of the locking rod (7) passes through the inner template pipe (3) and is fitted with a circular gasket (13) inside the inner cavity of the inner template pipe (3). The locking nut (14) is threaded around the external thread (15) inside the inner cavity of the inner template pipe (3). The locking nut (14) locks the locking rod (7) inside the inner template pipe (3).

8. A combined ABS formwork structure for full-section casting of underground passages according to claim 7, characterized in that: The four corners of the inner template pipe (3) are provided with detachable inner template chamfer plates (16). The inner wall of the frame of the inner template pipe (3) is closely attached to the inner wall of the detachable inner template chamfer plate (16) and a snap-fit ​​groove (17) is provided. The outer walls of both sides of each detachable inner template chamfer plate (16) are integrally connected with snap-fit ​​protrusions (18) for insertion into the snap-fit ​​groove (17).

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