Combined permanent formwork for ultra high performance concrete and method of assembly

By combining sliding and threaded components, the problem of poor template sealing was solved, resulting in better sealing performance and resource conservation.

CN117432194BActive Publication Date: 2026-05-01DALIAN JIAOTONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN JIAOTONG UNIVERSITY
Filing Date
2023-11-20
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing ultra-high performance concrete formwork uses only a few horizontal bars for limiting the connection between the upper and lower parts, resulting in poor sealing performance.

Method used

The design employs a combination of sliding and threaded components. The threaded rod pushes the upper mold plate to fit tightly against the surface of the lower mold, achieving a close connection. The movement of the sliding component enables the reuse of resources.

Benefits of technology

It improves the sealing performance of the template, saves resources, and enables the template to be used multiple times.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of templates, and discloses a combined permanent template for ultra-high performance concrete. The application solves the problem that the existing template is sealed by smearing sealant on the upper and lower ends when being connected, but the existing template only uses several horizontal rods to limit the upper and lower ends, so that the upper and lower ends can only be limited and cannot be tightly attached together, which results in poor sealing effect of the upper and lower ends. The threaded assembly is arranged, the threaded assembly is rotated during sealing, the threaded assembly pushes the upper template to be tightly attached above the lower mold, the upper template has a downward extrusion force, compared with the prior art, the upper template is not only limited but also extruded downward, the sealing effect is better, and the purpose of improving the sealing performance is achieved.
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Description

Technical Field

[0001] This invention relates to the field of formwork, specifically to a combined permanent formwork and assembly method for ultra-high performance concrete. Background Technology

[0002] The modular permanent formwork for ultra-high performance concrete is a type of formwork used to shape cement during the pouring process. Its main purpose is to shape the cement. For example, the patent with publication number CN215210490U allows for easy assembly into cylindrical formwork on-site. The durability of the formwork material is several times greater than that of ordinary concrete, the segment lifting weight is small, and it can be assembled using small equipment. The formwork can be used for the construction of piers in highly corrosive areas and the repair of damaged existing piers.

[0003] Patent CN215210490U discloses a tenon-and-mortise combined ultra-high performance concrete permanent formwork, including a first arc-shaped permanent column formwork and a second arc-shaped permanent column formwork. Both the first and second arc-shaped permanent column formworks are semi-circular tubular arc plates. When existing formworks are connected vertically, sealant is applied to both the upper and lower ends for sealing. However, existing formworks only use a few horizontal bars to limit the vertical movement. This can only limit the movement and cannot make the upper and lower ends fit tightly together, which results in poor sealing effect at both ends. Summary of the Invention

[0004] The purpose of this invention is to provide a combined permanent formwork and assembly method for ultra-high performance concrete. By using this device, the problem of existing formwork, which only uses a few horizontal bars to limit the upper and lower parts when connecting them, is solved. This can only limit the parts but cannot make the upper and lower parts fit tightly together, resulting in poor sealing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a combined permanent formwork for ultra-high performance concrete, comprising an upper formwork, a lower formwork disposed below the upper formwork, a sliding component disposed on the outer side of the lower formwork, and a threaded component disposed on the outer side of the sliding component.

[0006] Preferably, the sliding component includes a first connecting plate disposed on the outer side of the lower template, a first groove disposed inside the first connecting plate, a fifth connecting plate disposed inside the first groove, a slider disposed on the left side of the fifth connecting plate, a second connecting plate disposed inside the slider, and a groove disposed inside the second connecting plate.

[0007] Preferably, the first groove has an "L" shape, and the width of the first groove is the same as the width of the fifth connecting plate, and the lower width of the first groove is the same as the width of the second connecting plate.

[0008] Preferably, the slider has a "T" shaped external structure, and the width of the slider is the same as the width of the groove.

[0009] Preferably, the fifth connecting plate has a trapezoidal shape, and the right side surface of the fifth connecting plate is attached to the left side surface of the second connecting plate, and the second connecting plate also has a trapezoidal shape.

[0010] Preferably, the threaded assembly includes a threaded rod disposed inside the fifth connecting plate, a third connecting plate disposed on the left side of the front end of the fifth connecting plate, a push plate disposed on the right side of the threaded rod, a first hole disposed inside the push plate, a second groove communicating with the right side of the first hole, a rotating disk disposed inside the second groove, a fourth connecting plate disposed on the outside of the upper template, and a second hole disposed inside the fourth connecting plate.

[0011] Preferably, the threaded rod is connected to the fifth connecting plate by a threaded connection, and the width of the threaded rod is the same as the width of the first hole.

[0012] Preferably, the push plate has a trapezoidal shape and the push plate is connected to the third connecting plate by a lateral sliding connection.

[0013] Preferably, the width of the push plate is the same as the width of the second hole, and the second holes are equidistantly distributed inside the fourth connecting plate.

[0014] Preferably, an assembly method for a combined permanent formwork for ultra-high performance concrete includes the following steps:

[0015] S1. Pull the second connecting plate backward to align the second connecting plate with the first groove;

[0016] S2. Push the second connecting plate downwards so that the second connecting plate moves to the bottom of the first groove;

[0017] S3. Push the first connecting plate to move to the rear, so that the second connecting plate will move to the right, thereby limiting the first and second connecting plates;

[0018] S4. Rotate the threaded rod, and the push plate moves to the right. When the push plate moves to the gap between the two second holes, the push plate will move downward along the inclined side of the second hole.

[0019] S5. The push plate pulls the upper template upward, so that the upper surface of the upper template can be tightly attached to the upper surface of the lower mold.

[0020] S6. After sealing is completed, rotate the threaded rod so that the push plate can return to its original position, pull the first connecting plate forward, reduce the overall width of the first connecting plate and the second connecting plate, and then allow the second connecting plate to return along the same path, so that the entire threaded assembly can be reused.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The present invention proposes a combined permanent formwork for ultra-high performance concrete. By incorporating a threaded assembly, during sealing, rotating the threaded assembly causes the upper formwork to press tightly against the upper mold, thereby applying a downward squeezing force to the upper formwork. Compared to existing technologies, this not only provides simple positioning but also compresses the upper formwork downward, resulting in a better sealing effect and thus improving sealing performance.

[0023] The present invention proposes a combined permanent formwork for ultra-high performance concrete. By setting a sliding component, after sealing, rotating the threaded component loosens the sliding component, causing it to move outward, and then pushing the threaded component upward, so that the threaded component can be removed for the next use, thereby achieving the purpose of saving resources. Attached Figure Description

[0024] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the sliding component and the threaded component of the present invention;

[0026] Figure 3 This is a three-dimensional structural diagram of the fifth connecting plate of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the second connecting plate of the present invention;

[0028] Figure 5 This is a schematic diagram of the push plate three-dimensional structure of the present invention;

[0029] Figure 6 This is a three-dimensional cross-sectional view of the push plate of the present invention;

[0030] Figure 7 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle.

[0031] In the diagram: 1. Upper template; 2. Lower template; 3. Sliding assembly; 4. Threaded assembly; 301. First connecting plate; 302. First groove; 303. Fifth connecting plate; 304. Slider; 305. Second connecting plate; 306. Slide groove; 401. Threaded rod; 402. Third connecting plate; 403. Push plate; 404. First hole; 405. Second groove; 407. Rotary disk; 408. Fourth connecting plate; 409. Second hole. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-7 The present invention provides a technical solution: a combined permanent formwork for ultra-high performance concrete, comprising an upper formwork 1, a lower formwork 2 disposed below the upper formwork 1, a sliding component 3 disposed on the outer side of the lower formwork 2, and a threaded component 4 disposed on the outer side of the sliding component 3.

[0034] The sliding component 3 includes a first connecting plate 301 disposed on the outside of the lower template 2, a first groove 302 disposed inside the first connecting plate 301, a fifth connecting plate 303 disposed inside the first groove 302, a slider 304 disposed on the left side of the fifth connecting plate 303, a second connecting plate 305 disposed inside the slider 304, and a groove 306 disposed inside the second connecting plate 305.

[0035] The first groove 302 has an "L" shape in its external structure, and the width of the first groove 302 is the same as the width of the fifth connecting plate 303, and the lower width of the first groove 302 is the same as the width of the second connecting plate 305.

[0036] The slider 304 has a "T" shaped external structure, and the width of the slider 304 is the same as the width of the groove 306.

[0037] The fifth connecting plate 303 has a trapezoidal shape, and the right side surface of the fifth connecting plate 303 is attached to the left side surface of the second connecting plate 305. The second connecting plate 305 also has a trapezoidal shape.

[0038] The threaded assembly 4 includes a threaded rod 401 disposed inside the fifth connecting plate 303. A third connecting plate 402 is disposed on the left side of the front end of the fifth connecting plate 303. A push plate 403 is disposed on the right side of the threaded rod 401. A first hole 404 is disposed inside the push plate 403. A second groove 405 is connected to the right side of the first hole 404. A rotating disk 407 is disposed inside the second groove 405. A fourth connecting plate 408 is disposed on the outer side of the upper template 1. A second hole 409 is disposed inside the fourth connecting plate 408.

[0039] The threaded rod 401 is connected to the fifth connecting plate 303 by a threaded connection, and the width of the threaded rod 401 is the same as the width of the first hole 404.

[0040] The push plate 403 has a trapezoidal shape, and the push plate 403 is connected to the third connecting plate 402 by a horizontal sliding connection.

[0041] The width of the push plate 403 is the same as the width of the second hole 409, and the second hole 409 is equidistantly distributed inside the fourth connecting plate 408.

[0042] An assembly method for a combined permanent formwork for ultra-high performance concrete includes the following steps:

[0043] S1. Pull the second connecting plate 305 to the rear side to align the second connecting plate 305 with the first groove 302;

[0044] S2. Push the second connecting plate 305 downward so that the second connecting plate 305 moves to the bottom of the first groove 302;

[0045] S3. Push the first connecting plate 301 to move to the rear, so that the second connecting plate 305 will move to the right, thereby limiting the first connecting plate 301 and the second connecting plate 305.

[0046] S4. Rotate the threaded rod 401, and the push plate 403 moves to the right. When the push plate 403 moves to the gap between the two second holes 409, the push plate 403 will move downward along the inclined side of the second hole 409.

[0047] S5. The push plate 403 pulls the upper template 1 upward so that the upper surface of the upper template 1 can be tightly attached to the upper surface of the lower mold.

[0048] S6. After sealing is completed, rotate the threaded rod 401 so that the push plate 403 can return to its original position, pull the first connecting plate 301 to move forward, so that the overall width of the first connecting plate 301 and the second connecting plate 305 is reduced, and the second connecting plate 305 can return along the original path, so that the entire threaded assembly 4 can be reused.

[0049] By pulling the second connecting plate 305 backward, aligning it with the first groove 302, and since the first groove 302 has an "L" shape and its width matches the width of the fifth connecting plate 303, and the lower width of the first groove 302 matches the width of the second connecting plate 305, and the fifth connecting plate 303 has a trapezoidal shape with its right side surface fitting against the left side surface of the second connecting plate 305, and the second connecting plate 305 also has a trapezoidal shape, pushing the second connecting plate 305 downward causes it to reach the bottom of the first groove 302, pushing the first connecting plate 301 backward, causing the second connecting plate 305 to move to the right, thus limiting the position of both the first and second connecting plates 301 and 305. Rotating the threaded rod 401, because... The threaded rod 401 is connected to the fifth connecting plate 303 by a threaded connection, and the width of the threaded rod 401 is the same as the width of the first hole 404. The push plate 403 has a trapezoidal shape, and the push plate 403 is connected to the third connecting plate 402 by a transverse sliding connection. The width of the push plate 403 is the same as the width of the second hole 409, and the second holes 409 are equidistantly distributed inside the fourth connecting plate 408, so that the push plate 403 moves to the right. When the push plate 403 moves to the gap between the two second holes 409, the push plate 403 will move downward along the inclined side of the second hole 409, pulling the upper template 1 upward, so that the upper surface of the upper template 1 can be tightly attached to the upper surface of the lower mold. Compared with the prior art, it is not just a simple limiting, but can also squeeze the upper template downward, so as to improve the sealing effect and thus achieve the purpose of improving the sealing performance.

[0050] After sealing is completed, rotating the threaded rod 401 allows the push plate 403 to return to its original position, pulling the first connecting plate 301 forward. This reduces the overall width of the first connecting plate 301 and the second connecting plate 305, allowing the second connecting plate 305 to return along the same path, thus enabling the entire threaded assembly 4 to be reused and achieving the goal of saving resources.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined permanent formwork for ultra-high performance concrete, comprising an upper formwork (1) and a lower formwork (2) disposed below the upper formwork (1), characterized in that: A sliding component (3) is provided on the outer side of the lower template (2), and a threaded component (4) is provided on the outer side of the sliding component (3). The sliding component (3) includes a first connecting plate (301) disposed on the outside of the lower template (2), a first groove (302) is disposed inside the first connecting plate (301), a fifth connecting plate (303) is disposed inside the first groove (302), a slider (304) is disposed on the left side of the fifth connecting plate (303), a second connecting plate (305) is disposed inside the slider (304), and a groove (306) is disposed inside the second connecting plate (305).

2. A combined permanent formwork for ultra-high performance concrete according to claim 1, characterized in that: The first groove (302) has an "L" shape in appearance, and the width of the first groove (302) is the same as the width of the fifth connecting plate (303), and the lower width of the first groove (302) is the same as the width of the second connecting plate (305).

3. A combined permanent formwork for ultra-high performance concrete according to claim 1, characterized in that: The slider (304) has a "T" shaped external structure, and the width of the slider (304) is the same as the width of the groove (306).

4. A combined permanent formwork for ultra-high performance concrete according to claim 1, characterized in that: The fifth connecting plate (303) has a trapezoidal shape, and the right side surface of the fifth connecting plate (303) is attached to the left side surface of the second connecting plate (305), and the second connecting plate (305) has a trapezoidal shape.

5. A combined permanent formwork for ultra-high performance concrete according to claim 1, characterized in that: The threaded assembly (4) includes a threaded rod (401) disposed inside a fifth connecting plate (303). A third connecting plate (402) is disposed on the left side of the front end of the fifth connecting plate (303). A push plate (403) is disposed on the right side of the threaded rod (401). A first hole (404) is disposed inside the push plate (403). A second groove (405) is connected to the right side of the first hole (404). A rotating disk (407) is disposed inside the second groove (405). A fourth connecting plate (408) is disposed on the outside of the upper template (1). A second hole (409) is disposed inside the fourth connecting plate (408).

6. A combined permanent formwork for ultra-high performance concrete according to claim 5, characterized in that: The threaded rod (401) is connected to the fifth connecting plate (303) by a threaded connection, and the width of the threaded rod (401) is the same as the width of the first hole (404).

7. A combined permanent formwork for ultra-high performance concrete according to claim 5, characterized in that: The push plate (403) has a trapezoidal shape, and the push plate (403) and the third connecting plate (402) are connected by a lateral sliding connection.

8. A combined permanent formwork for ultra-high performance concrete according to claim 5, characterized in that: The width of the push plate (403) is the same as the width of the second hole (409), and the second hole (409) is equidistantly distributed inside the fourth connecting plate (408).

9. The assembly method for a combined permanent formwork for ultra-high performance concrete according to claim 8, characterized in that: Includes the following steps: S1. Pull the second connecting plate (305) to the rear side to align the second connecting plate (305) with the first groove (302). S2. Push the second connecting plate (305) downward so that the second connecting plate (305) moves to the bottom of the first groove (302); S3. Push the first connecting plate (301) to move to the rear, so that the second connecting plate (305) will move to the right, so that the first connecting plate (301) and the second connecting plate (305) are limited; S4. Rotate the threaded rod (401), and the push plate (403) moves to the right. When the push plate (403) moves to the gap between the two second holes (409), the push plate (403) will move downward along the inclined side of the second hole (409). S5. The push plate (403) pulls the upper template (1) upward, so that the upper surface of the upper template (1) is in close contact with the upper surface of the lower mold. S6. After sealing is completed, rotate the threaded rod (401) to return the push plate (403) to its original position, pull the first connecting plate (301) to move forward, reduce the overall width of the first connecting plate (301) and the second connecting plate (305), and then make the second connecting plate (305) return along the original path, so that the entire threaded assembly (4) can be reused.

Citation Information

Patent Citations

  • Mortise and tenon combined type ultra-high performance concrete permanent formwork

    CN215210490U

  • Convenient-to-assemble pouring mold for constructional engineering construction grouting

    CN213174801U