Laminated slab strip slab seam control device

Abstract

The invention relates to a control device, belongs to the technical field of slab joint treatment, and particularly relates to a control device for a slab joint at a slab strip of a laminated slab, which comprises a prefabricated laminated slab, reinforcing steel bars are arranged on the prefabricated laminated slab, and a concrete slab is poured on the prefabricated laminated slab; according to the sealing device, primary sealing is formed through precise embedding of the sealing gasket and the batten groove, the rotating sleeve driven by the spring pushes the sliding block to abut against the periphery of the aluminum alloy formwork to achieve secondary dynamic sealing, three-level flexible sealing is formed in cooperation with the sponge strip between the prefabricated laminated slab and the aluminum alloy formwork, and the slurry leakage rate of slab joints is greatly reduced through triple protection; the problem of pouring slurry leakage is effectively solved, through the linkage design of a sliding rod and a rotating sleeve, a sliding block is automatically driven to slide along a limiting groove when a butterfly buckle is screwed, extrusion force is evenly transmitted to the periphery of an aluminum alloy formwork, a spring provides elastic compensation, a laminated slab is prevented from being damaged due to over-tightening, the veneer seam installation time is greatly shortened, and the construction efficiency is improved. And during disassembly, only the butterfly buckles need to be loosened, and rapid turnover use is achieved.

Description

Technical Field

[0001] This invention relates to the field of board joint treatment technology, specifically a board joint control device for the strip of a laminated board. Background Technology

[0002] Currently, with the continuous development of science and technology, construction projects are becoming increasingly efficient. Among them, precast composite slabs, as an emerging construction technology, have obvious advantages in improving construction efficiency and building quality.

[0003] Because the composite slabs are prefabricated components processed in the factory, there is bending deformation within the allowable error range, resulting in large gaps at the joints between the composite slabs and the formwork at the slab strips. After pouring, there is grout leakage, and the subsequent treatment is labor-intensive and time-consuming.

[0004] Based on this, the present invention proposes a plate seam control device at the plate strip of a composite plate. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a joint control device for composite slab strips. This device reduces joint gaps and minimizes grout leakage by welding reinforcing bars and bolts together and connecting the composite slab to the aluminum alloy template using butterfly buckles.

[0006] The technical solution for achieving the objective of this invention is as follows: a slab joint control device at the joint of a composite slab, comprising a precast composite slab, reinforcing bars between two precast composite slabs, and a concrete slab cast on the two precast composite slabs, further comprising:

[0007] Bolts are fixedly connected to the reinforcing bars. The bolts are equipped with butterfly buckles. An aluminum alloy template is provided between the two precast composite slabs. The aluminum alloy template has through holes. The bolts pass through the through holes and are fitted with wooden blocks.

[0008] Preferably, a sealing gasket is fitted onto the bolt.

[0009] Preferably, the timber has a groove that is adapted to the sealing gasket.

[0010] Preferably, a plurality of connecting blocks are fixedly connected to the timber, and four sliding rods are rotatably connected to the plurality of connecting blocks.

[0011] Preferably, four rotating sleeves are slidably connected to the four sliding rods, and multiple connecting blocks are rotatably connected to the four rotating sleeves.

[0012] Preferably, four sliders are fixedly connected to each of the multiple connecting blocks 2, and four limiting grooves are provided on the aluminum alloy template, with the four sliders slidably connected in the four limiting grooves respectively.

[0013] Preferably, each of the four rotating sleeves has a sliding groove, and four springs are fixedly connected to the four sliding grooves. The four springs are fixedly connected to the four sliding rods respectively.

[0014] Preferably, two sponge strips are provided between the two prefabricated composite slabs and the aluminum alloy template.

[0015] The significant advantages of this invention compared to existing technologies are:

[0016] Firstly, in this invention, a primary seal is formed by the precise fitting of the sealing gasket and the groove of the wooden block. The spring-driven rotating sleeve pushes the slider to press against the four sides of the aluminum alloy template to achieve a secondary dynamic seal. Combined with the sponge strip between the precast composite plate and the aluminum alloy template, a tertiary flexible seal is formed. The triple protection greatly reduces the leakage rate of grout in the plate joints and effectively solves the problem of grout leakage during pouring.

[0017] Secondly, in this invention, through the linkage design of the sliding rod and the rotating sleeve, when the butterfly buckle is tightened, the slider is automatically driven to slide along the limiting groove, so that the extrusion pressure is evenly transmitted to the periphery of the aluminum alloy template. The spring provides elastic compensation to avoid damage to the composite board due to excessive tightness. The installation time of the single board seam is greatly shortened, and when disassembling, only the butterfly buckle needs to be loosened, so as to achieve rapid turnover and use. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a cross-sectional view of the structure of the present invention;

[0021] Figure 3 This is a cross-sectional view of the rotating sleeve and sliding rod in this invention.

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

[0023] 1. Precast composite slab; 2. Reinforcing steel; 3. Bolts; 4. Concrete slab; 5. Butterfly buckle; 6. Sealing gasket; 7. Aluminum alloy formwork; 8. Through hole; 9. Timber; 10. Groove; 11. Connecting block one; 12. Sliding rod; 13. Rotating sleeve; 14. Slide groove; 15. Spring; 16. Connecting block two; 17. Sliding block; 18. Limiting groove; 19. Sponge strip. Detailed Implementation

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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.

[0025] This invention provides an improved seam control device for laminated slab strips. The technical solution of this invention is as follows:

[0026] like Figures 1-3 As shown, a slab joint control device at the joint of a composite slab includes a precast composite slab 1, with reinforcing bars 2 between two precast composite slabs 1. The reinforcing bars 2 are made of steel scrap with a diameter ≥10mm and a length ≥350mm. A concrete slab 4 is poured on the two precast composite slabs 1. The device also includes:

[0027] Bolt 3 is fixedly connected to the reinforcing bar 2. Bolt 3 is a φ14 tie bolt with a length ≥200mm. Bolt 3 is equipped with a butterfly buckle 5. An aluminum alloy template 7 is provided between the two precast composite slabs 1. The aluminum alloy template 7 has through holes 8. Bolt 3 passes through the through holes 8. The diameter of the through holes 8 is 16mm. Holes are made at 300mm intervals in the center of the aluminum alloy template 7. Wooden blocks 9 are fitted on the bolt 3. This device greatly reduces the grout leakage rate of the slab joints through heavy protection, effectively solving the problem of grout leakage during pouring.

[0028] Furthermore, such as Figure 1 and Figure 2 As shown, a sealing gasket 6 is fitted on the bolt 3. The sealing gasket 6 is located at the bottom of the wooden block 9 and above the butterfly buckle 5.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, a groove 10 is provided on the timber 9. The groove 10 is adapted to the sealing gasket 6. The first-level seal is formed by the precise fitting of the sealing gasket 6 and the groove 10 of the timber 9.

[0030] Furthermore, such as Figures 1-3 As shown, multiple connecting blocks 11 are fixedly connected to the wooden block 9, and four sliding rods 12 are rotatably connected to the multiple connecting blocks 11. The two adjacent sliding rods 12 are symmetrical about the bolt 3.

[0031] Furthermore, such as Figures 1-3As shown, four rotating sleeves 13 are slidably connected to the four sliding rods 12 respectively. The cross section of the rotating sleeve 13 is U-shaped. Multiple connecting blocks 16 are rotatably connected to the four rotating sleeves 13 respectively. Through the linkage design of the sliding rods 12 and the rotating sleeves 13, when the butterfly buckle 5 is tightened, the slider 17 is automatically driven to slide along the limiting groove 18, so that the extrusion pressure is evenly transmitted to the aluminum alloy template 7.

[0032] Furthermore, such as Figures 1-3 As shown, four sliders 17 are fixedly connected to multiple connecting blocks 16 respectively. The cross-section of the slider 17 is convex. Four limiting grooves 18 are provided on the aluminum alloy template 7. The four sliders 17 are slidably connected in the four limiting grooves 18 respectively, and the sliders 17 move along the limiting grooves 18.

[0033] Furthermore, such as Figure 3 As shown, four sliding grooves 14 are respectively opened in the four rotating sleeves 13, and four springs 15 are fixedly connected in the four sliding grooves 14. The four springs 15 are respectively fixedly connected to the four sliding rods 12. The springs 15 provide elastic compensation to avoid damage to the composite plate due to excessive tightness. The rotating sleeves 13 driven by the springs 15 push the sliders 17 to press against the aluminum alloy template 7 to achieve a two-stage dynamic seal.

[0034] Furthermore, such as Figure 2 As shown, two sponge strips 19 are respectively provided between the two prefabricated composite slabs 1 and the aluminum alloy template 7, and the sponge strips 19 between the prefabricated composite slabs 1 and the aluminum alloy template 7 constitute a three-level flexible seal.

[0035] The specific working method is as follows: Weld the reinforcing bars 2 and bolts 3 together, using timber 9 as the keel; drill holes 16mm in diameter at the center of the aluminum alloy template 7 at 300mm intervals to facilitate the passage of bolts 3; then place the reinforcing bars 2 on top of the two precast composite slabs 1, making the two precast composite slabs 1 symmetrical about the bolts 3; next, pass the aluminum alloy template 7 and timber 9 through the bolts 3, so that the top of the aluminum alloy template 7 fits against the bottom of the two precast composite slabs 1; then push the timber 9 upwards using butterfly buckles 5. The wooden beam 9 is moved so that the top of it fits against the bottom of the aluminum alloy template 7. At the same time, the upward movement of the wooden beam 9 causes the sliding rod 12 to move, which in turn moves the rotating sleeve 13 and the slider 17. The slider 17 is used to hold the aluminum alloy template 7 in place. The butterfly buckle 5 is used to tie the composite plate to the aluminum alloy template 7 to reduce the gap at the joint. Then concrete can be poured. After the concrete has set, the butterfly buckle 5 is removed, the aluminum alloy template 7 is disassembled, the sponge strip 19 is removed, and the exposed bolts 3 at the plate strip are cut and coated with anti-rust paint.

[0036] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A joint control device for the seam of a precast composite slab, comprising a precast composite slab (1), characterized in that: A reinforcing bar (2) is provided between the two precast composite slabs (1), and a concrete slab (4) is poured on the two precast composite slabs (1). The structure also includes: Bolt (3), the bolt (3) is fixedly connected to the reinforcing bar (2), the bolt (3) is provided with a butterfly buckle (5), an aluminum alloy template (7) is provided between the two precast composite plates (1), the aluminum alloy template (7) is provided with a through hole (8), the bolt (3) passes through the through hole (8), and a wooden block (9) is fitted on the bolt (3).

2. The plate seam control device at the strip of a laminated plate according to claim 1, characterized in that: A sealing gasket (6) is fitted onto the bolt (3).

3. The plate seam control device at the strip of a composite plate according to claim 2, characterized in that: The timber (9) has a groove (10) that is compatible with the sealing gasket (6).

4. The plate seam control device at the strip of a composite plate according to claim 1, characterized in that: Multiple connecting blocks (11) are fixedly connected to the timber (9), and four sliding rods (12) are rotatably connected to the multiple connecting blocks (11).

5. The plate seam control device at the strip of a laminated plate according to claim 4, characterized in that: Four rotating sleeves (13) are slidably connected to the four sliding rods (12), and multiple connecting blocks (16) are rotatably connected to the four rotating sleeves (13).

6. A joint control device for laminated slab strips according to any one of claims 1-5, characterized in that: Each of the multiple connecting blocks (16) is fixedly connected to four sliders (17), and the aluminum alloy template (7) is provided with four limiting grooves (18), and the four sliders (17) are slidably connected in the four limiting grooves (18).

7. The plate seam control device at the strip of a composite plate according to claim 5, characterized in that: Each of the four rotating sleeves (13) has a sliding groove (14) and a spring (15) is fixedly connected in the four sliding grooves (14). The four springs (15) are fixedly connected to the four sliding rods (12).

8. The plate seam control device at the strip of a composite plate according to claim 1, characterized in that: Two sponge strips (19) are respectively provided between the two prefabricated composite slabs (1) and the aluminum alloy template (7).

Images