Telescopic sleeve suitable for super high-rise core tube creeping formwork system

Abstract

The utility model provides a telescopic sleeve applicable to a super high-rise core tube creeping formwork system. The telescopic sleeve comprises an outer sleeve, an inner sleeve is coaxially arranged at the inner end of the outer sleeve in a sleeved mode, a spring fixing plate extends from the outer wall of the inner sleeve, the two ends of a spring abut against the spring fixing plate, a sealing fixing plate is fixed to the end of the outer sleeve, and the sealing fixing plate limits the spring fixing plate. The spring is a compression spring. The positioning device solves the problem of accurate positioning when a traditional electromechanical professional sleeve is pre-embedded in shear wall steel bar binding in the construction of a super high-rise creeping formwork system. The telescopic sleeve comprises an inner sleeve body, an outer sleeve body, a high-strength spring, a sealing fixing plate, a spring fixing plate, a rubber sealing ring and other components, relative telescopic movement of the sleeve can be achieved through a spring device, and therefore the telescopic sleeve can adapt to different wall thicknesses, batch production is facilitated, it is guaranteed that the telescopic sleeve is tightly attached to a creeping formwork, and the inner sleeve body can be jacked out of the wall surface after formwork removal; the time for searching the casing pipe in the later period is greatly shortened, and the labor cost is greatly saved.

Description

Technical Field

[0001] The utility model relates to a telescopic sleeve suitable for a super-high-rise core tube climbing formwork system, belonging to the technical field of formwork for making walls, floor slabs, ceilings or roofs. Background Art

[0002] Nowadays, the core tube of super high-rise building construction mostly adopts climbing formwork construction method, which has high requirements for the pre-buried casing construction process of mechanical and electrical pipelines. The quality of the pre-buried casing also has a certain impact on the climbing of the climbing formwork. There are several main problems with the traditional pre-buried casing: First, the casing is positioned when the shear wall reinforcement is tied. Since the aluminum film is not molded at this time, the reinforcement will tilt due to gravity, which is not conducive to the positioning of the casing; second, the error in the shear wall aluminum film during the construction process causes the aluminum film and the casing to not fit tightly, resulting in leakage during the concrete pouring process, making the casing unusable later; third, the casing is too short and the pre-buried position cannot be found after the formwork is removed. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides a retractable sleeve suitable for the super high-rise core tube climbing formwork system. The retractable sleeve suitable for the super high-rise core tube climbing formwork system can effectively solve the problem of close fit and precise positioning of the sleeve and the climbing formwork, effectively improve the efficiency of pre-embedding the sleeve and reduce the time for searching the sleeve later, thereby greatly saving labor costs.

[0004] The utility model is achieved through the following technical solutions.

[0005] The utility model provides a retractable sleeve suitable for a super-high-rise core tube climbing formwork system, comprising an outer sleeve; an inner sleeve is coaxially sleeved at the inner end position of the outer sleeve, a spring fixing plate extends from the outer wall of the inner sleeve, two ends of a spring are pressed against the spring fixing plate, a sealing fixing plate is fixed to the end of the outer sleeve, and the sealing fixing plate limits the spring fixing plate; the spring is a compression spring.

[0006] The inner diameter of the sealing fixing plate is consistent with the outer diameter of the inner sleeve.

[0007] The inner edge of the sealing fixing plate is provided with a rubber sealing ring.

[0008] The outer diameter of the spring fixing plate is consistent with the inner diameter of the outer sleeve.

[0009] The length of the outer sleeve is 2 / 3 of the wall thickness.

[0010] The outer diameter of the outer sleeve is larger than the pre-buried hole of the climbing formwork system sleeve, and the outer diameter of the inner sleeve matches the pre-buried hole of the climbing formwork system sleeve.

[0011] The length of the inner sleeve is 1 / 4 of the wall thickness.

[0012] The spring fixing plate is welded on the inner sleeve, and the distance between the spring fixing plate and the outer end of the inner sleeve is twice the distance between the spring fixing plate and the inner end of the inner sleeve.

[0013] The maximum elastic force of the spring is twice the minimum elastic force.

[0014] The beneficial effect of this utility model is that it solves the problem of accurately positioning the traditional electromechanical professional sleeves embedded in the shear wall reinforcement during the construction of super-high-rise climbing formwork systems. This telescopic sleeve includes an inner sleeve, an outer sleeve, a high-strength spring, a sealing fixing plate, a spring fixing plate, and a rubber sealing ring. The spring device can achieve relative telescopic movement of the sleeves to adapt to different wall thicknesses, facilitate mass production, and ensure a close fit with the climbing formwork. After the formwork is removed, the inner sleeve can be lifted out of the wall, greatly reducing the time spent on searching for the sleeves later and significantly saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of at least one embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the internal structure;

[0017] Figure 3 yes Figure 2 Schematic diagram of the structure in the contracted state.

[0018] In the figure: 1-inner sleeve, 2-outer sleeve, 3-sealing fixing plate, 4-spring, 5-spring fixing plate, 6-rubber sealing ring. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.

[0020] The first embodiment of the present invention relates to Figures 1 to 3 The telescopic sleeve shown is suitable for a super-high-rise core tube climbing formwork system, including an outer sleeve 2; an inner sleeve 1 is coaxially sleeved on the inner end position of the outer sleeve 2, a spring fixing plate 5 is extended from the outer wall of the inner sleeve 1, and both ends of a spring 4 are pressed against the spring fixing plate 5, and a sealing fixing plate 3 is fixed to the end of the outer sleeve 2, which limits the spring fixing plate 5; the spring 4 is a compression spring.

[0021] The second embodiment of the present invention is substantially the same as the first embodiment, except that the inner diameter of the sealing fixing plate 3 is consistent with the outer diameter of the inner sleeve 1 .

[0022] Furthermore, a rubber sealing ring 6 is installed on the inner edge of the sealing fixing plate 3 .

[0023] Furthermore, the outer diameter of the spring fixing plate 5 is consistent with the inner diameter of the outer sleeve 2 .

[0024] Furthermore, the spring fixing plate 5 is welded to the inner sleeve 1 , and the distance between the spring fixing plate 5 and the outer end of the inner sleeve 1 is twice the distance between the spring fixing plate 5 and the inner end of the inner sleeve 1 .

[0025] The third embodiment of the present invention is substantially the same as the first embodiment, mainly in that the preferred arrangement is convenient for use, and the length of the outer sleeve 2 is 2 / 3 of the wall thickness.

[0026] Furthermore, the outer diameter of the outer sleeve 2 is larger than the pre-buried hole of the climbing formwork system sleeve, and the outer diameter of the inner sleeve 1 matches the pre-buried hole of the climbing formwork system sleeve.

[0027] Generally speaking, the size of outer sleeve 2 is one size larger than the sleeve size required for construction (for example: the drawing requires the sleeve size D3=159mm, then the size of the outer sleeve D3=219mm). During construction, the outer sleeve is welded and fixed to the wall steel bars with round steel according to the position marked on the drawing.

[0028] Furthermore, the length of the inner sleeve 1 is 1 / 4 of the wall thickness. Generally, the size of the inner sleeve 1 is large enough for the construction. After the telescopic sleeve device is fixed, the inner sleeve spring is lifted to the wall formwork and fits tightly with the formwork.

[0029] Furthermore, the maximum elastic force of spring 4 is 2 times of the minimum elastic force. The elastic force of the spring should ensure that the inner sleeve can be lifted to the template and still retain a certain elastic force so that the inner sleeve can be lifted out of the wall after demoulding.

[0030] Therefore, the main technical principle of the present invention is that sealing fixing plates 3 are welded at both ends of the outer sleeve 2, two sections of inner sleeves 1 are installed in the outer sleeve 2, and a spring 4 is installed between the spring fixing plates 5 welded on the two sections of the inner sleeves 1. The telescopic length of the inner sleeve is the length between the sealing fixing plate 3 and the spring fixing plate 5; when the telescopic sleeve is installed, the outer sleeve is welded and fixed to the wall steel bars with round steel, and the inner sleeve 1 is lifted to the wall formwork position under the action of the telescopic device and fits tightly with the wall formwork; when the wall concrete strength reaches the required demolding, the inner sleeve 1 continues to be lifted under the action of the telescopic device, so that the spring fixing plate reaches the sealing fixing plate position. At this time, the inner sleeves 1 on both sides of the wall protrude from the wall by a certain length, which effectively reduces the time for searching the sleeves in the later stage and greatly saves labor costs.

Claims

1. A telescopic sleeve suitable for a super high-rise core tube climbing formwork system, comprising an outer sleeve (2), characterized in that: The inner end of the outer sleeve (2) is coaxially sleeved with an inner sleeve (1), and a spring fixing plate (5) is extended from the outer wall of the inner sleeve (1). Both ends of the spring (4) are pressed against the spring fixing plate (5). A sealing fixing plate (3) is fixed to the end of the outer sleeve (2), and the sealing fixing plate (3) limits the spring fixing plate (5); the spring (4) is a compression spring.

2. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 1, characterized in that: The inner diameter of the sealing fixing plate (3) is consistent with the outer diameter of the inner sleeve (1).

3. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 2, characterized in that: The inner edge of the sealing fixing plate (3) is provided with a rubber sealing ring (6).

4. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 1, characterized in that: The outer diameter of the spring fixing plate (5) is consistent with the inner diameter of the outer sleeve (2).

5. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 1, characterized in that: The length of the outer sleeve (2) is 2 / 3 of the wall thickness.

6. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 1, characterized in that: The outer diameter of the outer sleeve (2) is larger than the pre-buried hole of the climbing formwork system sleeve, and the outer diameter of the inner sleeve (1) matches the pre-buried hole of the climbing formwork system sleeve.

7. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 1, characterized in that: The length of the inner sleeve (1) is 1 / 4 of the wall thickness.

8. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 1, characterized in that: The spring fixing plate (5) is welded to the inner sleeve (1), and the distance between the spring fixing plate (5) and the outer end of the inner sleeve (1) is twice the distance between the spring fixing plate (5) and the inner end of the inner sleeve (1).

9. The telescopic sleeve suitable for a super high-rise core tube climbing formwork system according to claim 1, characterized in that: The maximum elastic force of the spring (4) is twice the minimum elastic force.

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