Fireproof plate cast-in-place concrete wall structure and fireproof plate
By using the design of casing structure and limit rings in concrete walls, the problem of difficulty in recycling screws is solved, and the removable and length adjustment of screws is realized, reducing construction costs and expanding the scope of application.
Patent Information
- Application Number
- CN202422530326.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-18
AI Technical Summary
In the prior art, screws are difficult to recycle, resulting in increased construction costs and easily damage the screws and walls when taken out.
The casing structure is adopted, including threaded pipe and threaded rod. Through the coordination of the limiting ring and nut, the threaded rod can be detachable and length adjustment, ensuring that the threaded rod can be pulled out after concrete forming, and the sleeve remains, realizing the recycling of the threaded rod.
The recycling of threaded rods is realized, which reduces construction costs, and adapts to the needs of concrete pouring of different widths, which improves the scope of application.
Smart Images

Figure CN223281486U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of construction engineering, and specifically to a fireproof board cast-in-place concrete wall structure and a fireproof board. Background Art
[0002] With the continuous advancement of wall material innovation and building energy conservation efforts in my country, new structural systems with insulation that lasts the same lifespan as the building walls have rapidly developed. Since shear wall structures and frame-shear wall structures primarily made of cast-in-place concrete account for a large proportion of new buildings, various wall insulation structures have emerged that use cast-in-place concrete on both sides of a reinforced mesh insulation board, with the inner and outer concrete walls connected by a reinforced mesh that penetrates the insulation board.
[0003] After searching, the public (announcement) number CN213539398U discloses a cast-in-place concrete composite insulation sandwich wall, including a concrete layer, a composite insulation layer, reinforcing ribs, webs, screws and nuts; a concrete layer is arranged between the two composite insulation layers, and the screws sequentially penetrate the composite insulation layer, the concrete layer and the composite insulation layer... This application makes the composite insulation layer and the concrete layer have a high connection strength in the formed building, thereby improving the overall strength of the building. However, this application makes it inconvenient to remove the screws after the concrete is cast. Since a hammer is generally used to hit the screws when removing them, the screw threads are easily damaged and even the wall is damaged. If the screws are not removed and left inside the concrete, the cost of the building screws is increased and the recycling of the screws cannot be achieved.
[0004] In summary, how to reduce construction costs and recycle screws is a technical problem that needs to be solved urgently. To this end, we propose a fireproof board cast-in-place concrete wall structure and a fireproof board. Utility Model Content
[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a fireproof board cast-in-place concrete wall structure and a fireproof board, including a wall body, characterized in that: a sleeve is passed through the wall body, a threaded tube is provided on the inner left side of the sleeve, a sliding rod is slidably connected to the inner part of the threaded tube, a threaded rod is provided on the inner right side of the sleeve, the right end of the sliding rod is fixedly connected to the left end of the threaded rod, a fixing component is provided on the threaded tube, and a plurality of limit grooves that can cooperate with the fixing component are opened on the outer side of the sliding rod.
[0006] According to the technical solution provided in the embodiment of the present application, a detachable limiting ring is provided on the outer side of the threaded tube and the threaded rod, and a nut is threadedly sleeved on the outer side of the threaded tube and the threaded rod for locking the limiting ring.
[0007] According to the technical solution provided in the embodiment of the present application, the plurality of limit grooves are arranged in sequence from left to right, and the distances between two adjacent limit grooves are equal.
[0008] According to the technical solution provided in the embodiment of the present application, a sliding groove is provided on the outer side of the sliding rod, and a limiting strip adapted to the sliding groove is fixedly connected to the inner wall of the threaded tube.
[0009] According to the technical solution provided in the embodiment of the present application, the fixing assembly includes a fixing ring, which is provided with a threaded hole. The bottom end of the threaded hole extends to the inner wall of the threaded tube, and a fixing bolt is inserted into the internal thread of the threaded hole.
[0010] According to the technical solution provided in the embodiment of the present application, the fixing ring and the threaded tube are integrally formed, and the lower end of the fixing bolt extends to the inside of the limiting groove.
[0011] According to the technical solution provided in the embodiment of the present application, the length of the limiting strip is equal to the length of the threaded tube, and the top surface of the fixing ring is provided with anti-slip grooves.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. After the concrete is poured and formed, unscrew the nut on the threaded rod, then remove the limit ring from the threaded rod, drive the sliding rod to move to the left, and then pull the threaded rod and threaded tube out from the inside of the casing, so that the casing is left inside the concrete. In this way, the threaded rod can be removed and continued to be used without causing damage to the threaded rod, thereby realizing the recycling of the threaded rod and saving construction costs.
[0014] 2. The sliding rod is made to slide inside the threaded pipe, and the length between the threaded pipe and the threaded rod is adjusted, so that the threaded pipe and the threaded rod can be suitable for pouring concrete of different widths, thereby improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a partial structural sectional view of the utility model.
[0018] 1. Wall body; 2. Casing; 3. Limiting ring; 4. Nut; 5. Threaded rod; 6. Sliding rod; 7. Limiting groove; 8. Fixing bolt; 9. Fixing ring; 10. Threaded tube; 11. Sliding groove; 12. Limiting strip; 13. Threaded hole. DETAILED DESCRIPTION
[0019] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.
[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0021] As mentioned in the background technology, it is inconvenient to remove the screw after the concrete is poured and formed in the existing technology. Since the screw is generally hit with a hammer when taking it out, the screw thread may be damaged or even the wall may be damaged. If the screw is not taken out and left inside the concrete, the cost of the construction screw will increase and the recycling of the screw cannot be achieved.
[0022] Example:
[0023] See also Figure 1The utility model provides a technical solution, a fireproof board cast-in-situ concrete wall structure and a fireproof board, including a wall body 1, the wall body 1 belongs to the existing technology, including a concrete layer, a composite insulation layer, a steel wire mesh, a connecting piece, a reinforcing rib and a belly wire. Its detailed structure and working principle refer to the cast-in-situ concrete composite insulation sandwich wall with the publication (announcement) number CN213539398U, which will not be described in detail herein; a sleeve 2 is passed through the wall body 1, and the sleeve 2 can be a PVC sleeve 2. A threaded tube 10 is provided on the left side of the inner part of the sleeve 2, and a sliding rod 6 is slidably connected to the inner part of the threaded tube 10. A threaded rod 5 is provided on the right side of the inner part of the sleeve 2. The right end of the sliding rod 6 is fixedly connected to the left end of the threaded rod 5. A detachable limit ring 3 is provided on the outer side of the threaded tube 10 and the threaded rod 5. The limit ring 3 plays a role in limiting the sleeve 2. The outer sides of the threaded tube 10 and the threaded rod 5 are threadedly sleeved with a nut 4, which is used to lock the limit ring 3 to ensure that the limit ring 3 can be locked on both sides of the sleeve 2; in actual application, after the concrete pouring is completed, the nut 4 on the threaded rod 5 can be unscrewed, and then the limiting ring 3 can be removed from the threaded rod 5, and the threaded rod 5 can be used to drive the sliding rod 6 to move to the right and be pulled out from the inside of the sleeve 2 (the threaded rod 5 is also pulled out from the inside of the sleeve 2), and then the threaded tube 10 is pulled out from the inside of the sleeve 2, so that the sleeve 2 is left inside the concrete, so that the threaded rod 5 can be removed and continued to be used, and it is not easy to damage the threaded rod 5, thereby realizing the recycling of the threaded rod 5 and saving construction costs. A fixing component is provided on the threaded tube 10, and a plurality of limiting grooves 7 that can cooperate with the fixing component are opened on the outer side of the sliding rod 6. The plurality of limiting grooves 7 are arranged in sequence from left to right, and the spacing between two adjacent limiting grooves 7 is equal. Specifically, with the cooperation of the fixing component and the limiting groove 7, the sliding rod 6 can be effectively locked in the threaded tube 10, and the spacing between the threaded tube 10 and the threaded rod 5 is locked.
[0024] See also Figure 2 A sliding groove 11 extending along the length direction of the sliding rod 6 is opened on the outside of the sliding rod 6, and a limiting strip 12 adapted to the sliding groove 11 is fixedly connected to the inner wall of the threaded tube 10. The limiting strip 12 extends into the sliding groove 11 and cooperates with the sliding groove 11 to limit the sliding rod 6, thereby preventing the sliding rod 6 from rotating inside the threaded tube 10, allowing the sliding rod 6 to move in a straight line, ensuring that the fixing bolt 8 can correspond to the limiting groove 7 up and down.
[0025] See also Figure 2, the fixing assembly includes a fixing ring 9, a threaded hole 13 is provided on the fixing ring 9, and the bottom end of the threaded hole 13 extends to the inner wall of the threaded tube 10, so that the sliding rod 6 slides inside the threaded tube 10, and the length between the threaded tube 10 and the threaded rod 5 is adjusted, so that the threaded tube 10 and the threaded rod 5 can be suitable for pouring concrete of different widths, thereby improving the scope of application. It should be noted that after the distance between the threaded tube 10 and the threaded rod 5 is determined, the selected sleeve 2 also needs to be adjusted; the internal thread of the threaded hole 13 is plugged with a fixing bolt 8, and the fixing ring 9 and the threaded tube 10 are integrally formed. The lower end of the fixing bolt 8 extends to the inside of the limiting groove 7. After the position adjustment of the sliding rod 6 is completed, the fixing bolt 8 is screwed and inserted into the inside of the limiting groove 7, thereby completing the limiting fixation of the sliding rod 6. The length of the limiting strip 12 is equal to the length of the threaded tube 10. The top surface of the fixing ring 9 is provided with anti-slip grooves, and the top surface of the fixing ring 9 is flat. The anti-slip grooves increase the friction between the fixing ring 9 and the fixing bolt 8.
[0026] Working principle: After the concrete pouring is completed, unscrew the nut 4 on the threaded rod 5, and then remove the limiting ring 3 from the threaded rod 5. At the same time, it is also necessary to unscrew the fixing bolt 8 from the limiting groove 7. In this way, the threaded rod 5 drives the sliding rod 6 to move to the right to pull both out from the inside of the sleeve 2. Finally, the threaded tube 10 is pulled out from the inside of the sleeve 2, and the sleeve 2 is finally left inside the concrete. In this way, the threaded rod 5 can be disassembled and continued to be used without causing damage to the threaded rod 5, thereby realizing the recycling of the threaded rod 5 and saving construction costs.
[0027] In order to adapt to different casting requirements, this application adjusts the length between the threaded tube 10 and the threaded rod 5 by sliding the sliding rod 6 inside the threaded tube 10, so that the threaded tube 10 and the threaded rod 5 can support sleeves 2 of different lengths, thereby meeting the concrete casting requirements of different widths, improving the scope of application, and having more practical use value. After the position adjustment of the sliding rod 6 is completed, the fixing bolt 8 is screwed and inserted into the inside of the limit groove 7 to complete the limiting fixation of the sliding rod 6.
[0028] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.
Claims
1. A fireproof board cast-in-place concrete wall structure and a fireproof board, comprising a wall body (1), characterized in that: The wall body (1) is provided with a sleeve (2), a threaded tube (10) is provided on the left side of the interior of the sleeve (2), a sliding rod (6) is slidably connected to the interior of the threaded tube (10), a threaded rod (5) is provided on the right side of the interior of the sleeve (2), the right end of the sliding rod (6) is fixedly connected to the left end of the threaded rod (5), a fixing assembly is provided on the threaded tube (10), and a plurality of limiting grooves (7) that can cooperate with the fixing assembly are provided on the outer side of the sliding rod (6).
2. The fireproof board cast-in-situ concrete wall structure and fireproof board according to claim 1, characterized in that: The outer sides of the threaded tube (10) and the threaded rod (5) are both provided with detachable limiting rings (3), and the outer sides of the threaded tube (10) and the threaded rod (5) are both threadedly sleeved with nuts (4) for locking the limiting rings (3).
3. The fireproof board cast-in-situ concrete wall structure and fireproof board according to claim 1, characterized in that: The plurality of limiting grooves (7) are arranged in sequence from left to right, and the spacing between two adjacent limiting grooves (7) is equal.
4. The fireproof board cast-in-situ concrete wall structure and fireproof board according to claim 1, characterized in that: A sliding groove (11) is provided on the outer side of the sliding rod (6), and a limiting strip (12) adapted to the sliding groove (11) is fixedly connected to the inner wall of the threaded tube (10).
5. The fireproof board cast-in-situ concrete wall structure and fireproof board according to claim 4, characterized in that: The fixing assembly comprises a fixing ring (9), a threaded hole (13) is provided on the fixing ring (9), the bottom end of the threaded hole (13) extends to the inner wall of the threaded tube (10), and a fixing bolt (8) is inserted into the internal thread of the threaded hole (13).
6. The fireproof board cast-in-situ concrete wall structure and fireproof board according to claim 5, characterized in that: The fixing ring (9) and the threaded tube (10) are integrally formed, and the lower end of the fixing bolt (8) extends to the interior of the limiting groove (7).
7. The fireproof board cast-in-situ concrete wall structure and fireproof board according to claim 5, characterized in that: The length of the limiting strip (12) is equal to the length of the threaded tube (10), and the top surface of the fixing ring (9) is provided with anti-slip grooves.
Citation Information
Patent Citations
Cast-in-place concrete composite heat preservation sandwich wall
CN213539398U