Roof concrete protection layer separation joint construction device and construction method

Abstract

The invention provides a roof concrete protection layer separation seam construction device and method, the device comprises an adjustable supporting seat, a separation piece and a lifting set, the adjustable supporting seat comprises a top support and a height adjusting piece, the top support is provided with a limiting groove with a top opening, and the height adjusting piece is arranged at the bottom of the top support; the separator is matched with the limiting groove in shape and is detachably arranged in the limiting groove; the lifting assembly is detachably arranged on the upper portion of the partition piece. By arranging the adjustable supporting seat, the separator can be stably fixed, the height of the separator can be accurately adjusted, accurate positioning, straightness and attractiveness of a separation seam are achieved, accurate control over the thickness of a concrete protection layer is achieved, and the waterproof performance and the decoration effect of a roof are ensured; and the partition piece can be lifted upwards through the lifting assembly, and the integrity of concrete on the two sides of the partition seam is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete construction, and particularly relates to a construction device and a construction method for a separation joint of a roof concrete protective layer. Background Art

[0002] During the construction of the roof concrete protective layer in building engineering, due to reasons such as large area and small protective layer thickness, problems such as cracking are likely to occur. Therefore, it is usually necessary to set separation joints in the concrete protective layer to control the area of each concrete protective layer within a reasonable range, so as to reduce problems such as cracking caused by internal stress in the concrete. In the prior art, wooden or plastic strip-shaped separation strips are mostly used for the separation joints. Although they can form separation joints, due to their low material stiffness and lack of fixing measures, they are likely to deform or displace during concrete pouring, resulting in non-straight separation joints in the roof concrete protective layer. In addition, when using the existing separation strips, it is necessary to manually remove the separation strips after the concrete pouring is completed, which not only has a large removal difficulty, but also easily causes the separation joint concrete to be chipped at the edges and corners, seriously affecting the waterproof performance and decorative effect of the roof. In addition, the separation strips in the prior art are difficult to be reused and can only be applicable to a specific concrete protective layer thickness, resulting in waste of resources. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a construction device and a construction method for a separation joint of a roof concrete protective layer, which achieve accurate positioning, straight and beautiful separation joints, and precise control of the concrete protective layer thickness, ensuring the waterproof performance and decorative effect of the roof.

[0004] The technical solution adopted by the present invention is: a construction device for a separation joint of a roof concrete protective layer, comprising:

[0005] An adjustable support base, comprising a top support and a height adjustment member, the top support having a limiting groove with an open top, and the height adjustment member being arranged at the bottom of the top support for adjusting the height of the top support;

[0006] A separation member, being matched with the shape of the limiting groove and being detachably arranged in the limiting groove for forming a separation joint;

[0007] A lifting assembly, being detachably arranged on the upper part of the separation member for lifting the separation member to separate the separation member from the top support.

[0008] Further, a plurality of the adjustable support bases are uniformly arranged along the length direction of the separation member.

[0009] Further, the separation member is a hollow steel member with a square cross-section.

[0010] Further, the top end of the separation member is higher than the top support.

[0011] Further, the height adjusting member includes a bottom plate, a screw rod, and a sleeve that are sequentially arranged from bottom to top. The sleeve is fixed to the bottom of the top support and is threadedly connected to the screw rod.

[0012] Further, the lifting assembly includes a positioning member, a fixed platform, and a rotating member. The positioning member is detachably arranged on the fixed platform and extends below the fixed platform; the rotating member is rotatably clamped to the fixed platform, and the bottom end is threadedly connected to the separating member.

[0013] Further, a groove is provided in the middle of the fixed platform, and a limiting hole is provided in the middle of the groove. The rotating member includes a rotating disc and a lifting rod. The lifting rod passes through the limiting hole and is threadedly connected to the separating member; the rotating disc is embedded in the groove.

[0014] Further, the positioning member is symmetrically arranged with respect to the separating member and is fixed to the fixed platform by a nut.

[0015] Further, the length of the positioning member below the fixed platform is not greater than the length of the lifting rod below the fixed platform.

[0016] A construction method for the separation joint of the roof concrete protective layer adopts the construction device for the separation joint of the roof concrete protective layer as described above, and includes the following steps:

[0017] After the construction of the roof waterproof layer is completed, the position line of the separation joint is set out, and the adjustable support base is placed at the position line of the separation joint;

[0018] According to the thickness of the concrete protective layer and the height of the separating member, adjust the height of the adjustable support base, and temporarily fix the adjustable support base with mortar;

[0019] Place the separating member on the adjustable support base;

[0020] Pour the concrete protective layer;

[0021] After the concrete protective layer reaches the set strength requirement, install the lifting assembly on the upper part of the separating member, rotate the rotating member to lift the separating member, and remove the separating member;

[0022] Clean the separation joint.

[0023] The advantages and positive effects of the present invention are:

[0024] (1) By setting the adjustable support base in this application, the separating member can be firmly fixed, and the height of the separating member can be accurately adjusted according to the thickness of the concrete protective layer to be constructed, realizing accurate positioning, straightness and beauty of the separation joint, precise control of the thickness of the concrete protective layer, and ensuring the waterproof performance and decorative effect of the roof.

[0025] (2) The separator can be lifted upward by the lifting component to separate it from the adjustable support base, and no impact will be caused to the concrete on both sides during the movement, ensuring the integrity of the concrete on both sides of the separation joint;

[0026] (3) By designing the separator as a hollow steel member with a square cross-section, it has good strength and rigidity, and at the same time is convenient to cooperate with the adjustable support base and the lifting component, improving the overall stability and flexibility of the device.

[0027] (4) The overall structure is simple, easy to manufacture, convenient to use, and the separator can be recycled, avoiding resource waste. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of a specific embodiment of the present invention;

[0029] Figure 2 is a schematic connection diagram of the adjustable support base and the separator of a specific embodiment of the present invention;

[0030] Figure 3 is a schematic structural diagram of the rotating member of a specific embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of the fixed platform of a specific embodiment of the present invention;

[0032] Figure 5 is a schematic cross-sectional view of the fixed platform of a specific embodiment of the present invention.

[0033] In the figure:

[0034] 1. Adjustable support base; 11. Top support; 12. Height adjustment member; 121. Bottom plate; 122. Screw rod; 123. Sleeve; 2. Separator; 3. Lifting component; 31. Positioning member; 32. Fixed platform; 321. Limit hole; 322. Groove; 33. Rotating member; 331. Lifting rod; 332. Rotating disk. Detailed Embodiment

[0035] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0036] As Figure 1As shown in the figure, an embodiment of the present invention provides a construction device for the dividing joint of the roof concrete protective layer, which is used to form a dividing joint during the construction of the roof concrete protective layer. The device includes an adjustable support base 1, a dividing member 2 and a lifting assembly 3. By using this device to make the dividing joint, compared with the strip-shaped dividing strips made of wood or plastic in the prior art, it ensures that the dividing joint is straight, beautiful and accurately positioned; at the same time, it is convenient to use and easy to remove, avoiding the phenomenon of the dividing joint concrete being chipped or angled due to improper operation or high removal difficulty during removal, ensuring the roof waterproof performance and decorative effect; at the same time, the main components of this device can be reused, reducing resource waste. The following is a detailed description of each part of it.

[0037] As Figure 1 shown in the figure, an embodiment of the present invention provides a construction device for the dividing joint of the roof concrete protective layer, including:

[0038] The adjustable support base 1 includes a top support 11 and a height adjustment member 12. The top support 11 has a limiting groove with an open top. The height adjustment member 12 is arranged at the bottom of the top support 11 and is used to adjust the height of the top support 11;

[0039] The dividing member 2 is matched with the shape of the limiting groove and is detachably arranged in the limiting groove for forming a dividing joint;

[0040] The lifting assembly 3 is detachably arranged on the upper part of the dividing member 2 and is used to lift the dividing member 2 to separate the dividing member 2 from the top support 11.

[0041] The above adjustable support base 1 is used to provide an installation foundation for the separator 2 and the lifting assembly 3. Placing the adjustable support base 1 at the preset position of the separation joint and stably fixing it on the construction surface can ensure the accurate position of the separation joint and prevent it from moving easily. Its top support 11 is used to fix the separator 2 so that the separator 2 is fixed at the preset position. The separator 2 is used to separate the concrete on both sides during the concrete pouring process to form a separation joint. During use, according to the thickness of the concrete protective layer to be constructed, the height of the top support 11 is adjusted through the height adjustment member 12, so that the height of the separator 2 can be adjusted and used as a reference during the concrete pouring to achieve precise control of the pouring thickness of the concrete, and finally make the thickness of the concrete protective layer meet the design requirements. After the concrete pouring is completed, both the adjustable support base 1 and the separator 2 are embedded inside the concrete protective layer. Since the shape of the separator 2 matches the shape of the limiting groove of the adjustable support base 1, it can prevent the concrete from flowing into the limiting groove. After the concrete protective layer reaches the set strength, the separator 2 can be lifted upward by the lifting assembly 3 to separate it from the top support 11, realizing the removal of the separator 2 from the concrete protective layer. Since the separator 2 only receives the upward pulling force from the lifting assembly 3, it will not impact the concrete on both sides during the movement, ensuring the integrity of the concrete on both sides of the separation joint, achieving accurate positioning, straightness and beauty of the separation joint, precise control of the thickness of the concrete protective layer, and ensuring the waterproof performance and decorative effect of the roof. At the same time, the separator 2 can be recycled. In cooperation with the adjustable support base 1, it can be applied to the construction of separation joints of concrete protective layers with different thicknesses, saving material resources.

[0042] Further, in the embodiment of the present application, as Figure 2 shown, a plurality of adjustable support bases 1 are evenly arranged along the length direction of the separator 2. It can be understood that the separator 2 in the present application has a set length to form a strip-shaped separation joint. Multiple vertical and horizontal intersecting separation joints divide the concrete protective layer of the roof into block-shaped areas with a set shape. In the present application, the length of the separator 2 can be set as needed, either according to the size of each block-shaped area or through-length setting across two or more block-shaped areas. To ensure that the separator 2 is stably fixed at the preset position, each separator 2 is supported and fixed by a plurality of adjustable support bases 1. Preferably, when the length of the separator 2 is moderate, one adjustable support base 1 can be respectively arranged at the front and rear ends. When the length of the separator 2 is long, three or more adjustable support bases 1 can be arranged below it, and the three or more adjustable support bases 1 are evenly arranged along the length direction of the separator 2 to ensure uniform force on different parts of the separator 2 and improve the stability of the separator 2.

[0043] Furthermore, in the embodiment of the present application, the separator 2 is a hollow steel member with a square cross-section, which has good rigidity and is not easily deformed. At the same time, the hollow structure reduces its own weight. Correspondingly, the cross-sectional shape of the support 11 corresponds to that of the separator 2, so that the separator 2 is more stable when fixed on the support 11 and is not easily rotated or laterally offset. When the separator 2 is fixed on the support 11, its top surface is a horizontal plane, which is convenient to be used as a reference surface during the pouring of the concrete protective layer to ensure the accuracy of the concrete protective layer thickness.

[0044] In the above embodiment, the separator 2 includes a bottom surface, a top surface and two side surfaces; the support 11 includes a bottom plate and two side plates, and has a U-shaped limit groove structure. When the separator 2 is placed in the limit groove, the top surface and the two side surfaces are respectively attached to the bottom plate 121 and the two side plates of the support 11 to prevent the slurry from seeping into the gap between the separator 2 and the support 11 during the concrete pouring, so that the separator 2 can be smoothly removed from the limit groove.

[0045] In a preferred embodiment, the separator 2 is made of square steel pipe, and the support 11 is made of steel plate, both of which are common materials at the construction site.

[0046] Furthermore, in the above embodiment, the top end of the separator 2 is higher than the support 11. That is to say, the bottom end part of the separator 2 is placed in the limit groove, and the top end part protrudes from the limit groove. Through this setting, the fixation of the separator 2 can be realized, and a separation joint with a set depth can be formed after its removal, avoiding the support 11 protruding to the surface of the concrete protective layer and affecting the surface flatness of the concrete and the appearance quality of the roof. At the same time, this setting also reduces the contact area between the separator 2 and the concrete, which is beneficial to reducing the adhesion force between the separator 2 and the concrete, facilitating the later removal of the separator 2, and avoiding damage to the concrete on both sides of the separation joint.

[0047] Furthermore, in an alternative technical solution of the embodiment of the present application, the height adjusting member 12 includes a bottom plate 121, a screw rod 122, and a sleeve 123 which are sequentially arranged from bottom to top. The sleeve 123 is fixed to the bottom of the supporting pad 11 and is threadedly connected to the screw rod 122. The bottom plate 121 has a certain area and directly contacts the construction surface, enabling the height adjusting member 12 to have good stability. Preferably, during use, to further improve the accuracy of the position of the bottom plate 121 and prevent it from moving, after placing the bottom plate 121 at the set position, mortar is smeared on the bottom plate 121 to connect and fix it to the construction surface. The bottom plate 121 can be a square, circular, or other shaped plate-like member. Preferably, the bottom plate 121 is made of steel plate. The outer surface of the screw rod 122 is provided with an external thread, and its bottom end is welded to the bottom plate 121. The inner side of the sleeve 123 is provided with an internal thread that matches the screw rod 122 and is welded to the bottom of the supporting pad 11. The lengths of the sleeve 123 and the screw rod 122 are set according to the thickness of the concrete protective layer and the height of the partition strip under normal circumstances. The top end of the screw rod 122 is threadedly connected to the sleeve 123. By rotating the screw rod 122, the length of the top end of the screw rod 122 extending into the sleeve 123 can be adjusted, so as to adjust the height of the supporting pad 11, and further adjust the height of the partition member 2 to adapt to the thickness required for different concrete protective layers. The cooperation between the sleeve 123 and the screw rod 122 realizes precise adjustment and self-locking. Such a setting can, on the one hand, achieve precise adjustment of the height of the partition member 2, and on the other hand, position the screw rod 122 through self-locking to prevent it from moving during use.

[0048] Furthermore, in the embodiment of the present application, the lifting assembly 3 includes a positioning member 31, a fixed platform 32, and a rotating member 33. The positioning member 31 is detachably disposed on the fixed platform 32 and extends below the fixed platform 32; the rotating member 33 is rotatably clamped to the fixed platform 32, and the bottom end is threadedly connected to the spacer member 2. The above-mentioned positioning member 31 is used to provide support for the fixed platform 32 to fix it at a set position and ensure its stable placement at the separation joint. The fixed platform 32 fixes the rotating member 33 at a set height by means of clamping, and at the same time, the rotating member 33 can axially rotate relative to the fixed platform 32; during use, when the concrete protective layer reaches the set strength, the lifting assembly 3 is placed at the separation joint, and the bottom end of the rotating member 33 is threadedly connected to the top end of the spacer member 2, so that the positioning member 31 presses against the concrete protective layer. By rotating the rotating member 33, the spacer member 2 can be moved upward along the rotating member 33 to realize the lifting of the spacer member 2 until the spacer member 2 is separated from the top support 11 and the concrete on both sides. Specifically, during use, the worker needs to manually rotate the rotating member 33 to generate sufficient pulling force on the spacer member 2 to ensure that the spacer member 2 can be smoothly removed; during this process, the fixed platform 32 bears the downward pulling force of the rotating member 33 and transfers the pressure to the concrete protective layer through the positioning member 31. The overall operation process is simple, the force transmission path is reasonable, ensuring the force direction and movement path of the spacer member 2 and avoiding impact damage to the concrete on both sides; it can be understood that when the spacer member 2 has a set length, multiple lifting assemblies 3 should be used during removal and connected to different parts of the spacer member 2 at the same time, so that the spacer member 2 can be lifted synchronously in different length directions to avoid deformation and damage of the spacer member 2.

[0049] Furthermore, in an alternative technical solution of the embodiment of the present application, as Figures 3 to 5 shown, a groove 322 is provided in the middle of the fixed platform 32, and a limit hole 321 is provided in the middle of the groove 322. The rotating member 33 includes a rotating disk 332 and a lifting rod 331. The lifting rod 331 passes through the limit hole 321 and is threadedly connected to the spacer member 2; the rotating disk 332 is embedded in the groove 322. Preferably, the rotating disk 332 is disposed at the top end of the lifting rod 331. By providing the groove 322 on the fixed platform 32, the rotating disk 332 can be fixed in the groove 322, and then the rotating member 33 can be fixed at a set height; the aperture of the limit hole 321 is larger than the cross-sectional dimension of the lifting rod 331, so that the lifting rod 331 can freely rotate in the limit hole 321; a through hole and a limit nut are provided at the top end of the spacer member 2, and the limit nut can be threadedly connected to the lifting rod 331, so that the lifting rod 331 can pass through the through hole and extend into the hollow structure of the spacer member 2. As the lifting rod 331 gradually penetrates into the spacer member 2, the spacer member 2 is gradually driven to move upward, and finally the separation from the top support 11 and the concrete on both sides is realized, completing the disassembly of the spacer member 2 and forming a straight and beautiful separation joint.

[0050] In the embodiment of the present application, the groove 322 and the rotating disk 332 cooperate to achieve the limitation of the rotating disk 332. As long as the groove 322 can accommodate the rotating disk 332, the shapes of the groove 322 and the rotating disk 332 are not limited here; preferably, the disk and the groove 322 are both configured to be circular, and the diameter of the rotating disk 332 is smaller than the support of the groove 322, and the limiting hole 321 is configured at the center of the groove 322.

[0051] In a preferred embodiment, the lifting rod 331 and the rotating disk 332 are connected in a detachable manner.

[0052] Furthermore, in the embodiment of the present application, the positioning member 31 is symmetrically arranged relative to the partition 2 and is fixed to the fixed platform 32 by a nut. The positioning member 31 is used to transfer the pressure to the concrete protective layer during the lifting of the partition 2. To ensure the stability of the fixed platform 32, the positioning members 31 are arranged in at least two pieces and are symmetrically arranged relative to the partition 2, so that the fixed platform 32 can be subjected to a more balanced force; preferably, the positioning members 31 are arranged in four pieces, two of which are arranged on each side of the partition 2, so as to reduce the deformation risk of the fixed platform 32 and evenly distribute the pressure during the lifting process, thereby ensuring the stability and reliability of the entire structure.

[0053] In the above embodiment, assembly holes are respectively provided on both sides of the fixed platform 32, and the positioning member 31 is a threaded rod with a set length and is fixed in the assembly hole by a nut to achieve a stable connection between the positioning member 31 and the fixed platform 32; at the same time, the length of the positioning member 31 below the fixed platform 32 can be adjusted as needed to make the positioning member 31 effectively contact the concrete protective layer.

[0054] Further, in the embodiment of the present application, the length of the positioning member 31 below the fixed platform 32 is not greater than the length of the lifting rod 331 below the fixed platform 32. When in use, the length of the positioning member 31 below the fixed platform 32 can be adjusted according to the length of the lifting rod 331 below the fixed platform 32, so that when the lifting rod 331 is initially connected to the partition 2, the positioning member 31 is in a state of not contacting the concrete protective layer or just contacting the concrete protective layer. As the lifting rod 331 gradually penetrates, the positioning member 31 presses against the concrete protective layer, thereby realizing the gradual lifting of the partition 2.

[0055] The second aspect of the present application also provides a roof concrete protective layer separation joint construction method, using the roof concrete protective layer separation joint construction device as described above, comprising the following steps:

[0056] S1. After the construction of the roof waterproof layer is completed, the separation seam position line is set, and the adjustable support seat 1 is placed at the separation seam position line;

[0057] In a specific embodiment, after the construction of the roof protection layer is completed, a construction surface of the concrete protection layer is formed. The theodolite is used to determine the accurate position of the separation joint on this construction surface, and the position line of the separation joint is marked with an ink line;

[0058] In the above embodiment, since the planned separation joint is relatively long, adjustable support seats 1 are respectively placed at both ends and the middle position of the separation joint position line.

[0059] S2. According to the thickness of the concrete protection layer and the height of the separator 2, adjust the height of the adjustable support seat 1, and temporarily fix the adjustable support seat 1 with mortar;

[0060] In a specific embodiment, the top elevation of the separator 2 is determined by a level, and then the height of the adjustable support seat 1 is adjusted according to the height of the separator 2 to adapt to the height of the separator 2 to meet the top elevation requirement of the separator 2; the precise adjustment of the adjustable support seat 1 is achieved by rotating the screw 122, and then the bottom plate 121 of the adjustable support seat 1 is temporarily fixed on the construction surface with mortar to prevent the adjustable support seat 1 from being disturbed and displaced during the concrete construction.

[0061] S3. Place the separator 2 on the adjustable support seat 1;

[0062] Specifically, when the mortar reaches the strength requirement, place the separator 2 on the top support 11 of the adjustable support seat 1.

[0063] S4. Pour the concrete protection layer;

[0064] During the pouring, it is necessary to control the pouring quality of the concrete at the separation joint to ensure its density, and the pouring height of the concrete protection layer is flush with the top of the separator 2.

[0065] S5. After the concrete protection layer reaches the set strength requirement, install the lifting assembly 3 on the upper part of the separator 2, rotate the rotating member 33 to lift the separator 2, and remove the separator 2;

[0066] Specifically, after the concrete protection layer reaches the set strength requirement, install several lifting assemblies 3 along the length direction of the separator 2, connect the lifting rod 331 with the nut at the top end of the separator 2, and make the positioning member 31 press against the concrete protection layer on both sides of the separation joint; in this embodiment, a hexagonal hole is provided in the middle of the top of the rotating disc 332, and the rotating disc 332 can be evenly rotated by an inner hexagon wrench, so that the lifting rod 331 gradually penetrates into the separator 2, and the separator 2 is slowly lifted until it is separated from the concrete, avoiding the damage of the concrete edges and corners on both sides of the separation joint caused by prying the separator 2 from the side.

[0067] S6. Clean the separation joint.

[0068] After the separator 2 is separated from the separation joint, clean the sundries in the separation joint to keep the separation joint clean. Then fill the asphalt glue, and the separator 2 can be moved to other places for repeated use.

[0069] The advantages and positive effects of the present invention are as follows:

[0070] (1) By setting the adjustable support base in this application, the separator can be firmly fixed, and the height of the separator can be accurately adjusted according to the thickness of the concrete protective layer to be constructed, realizing accurate positioning, straightness and beauty of the separation joint, precise control of the thickness of the concrete protective layer, and ensuring the waterproof performance and decorative effect of the roof.

[0071] (2) Through the lifting component, the separator can be lifted upward to separate it from the adjustable support base, and it will not impact the concrete on both sides during the movement, ensuring the integrity of the concrete on both sides of the separation joint.

[0072] (3) By designing the separator as a hollow steel member with a square cross-section, it has good strength and rigidity, and at the same time is convenient to cooperate with the adjustable support base and the lifting component, improving the overall stability and flexibility of the device.

[0073] (4) The overall structure is simple, easy to manufacture, convenient to use, and the separator can be recycled, avoiding waste of resources.

[0074] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A construction device for the separation joints of the roof concrete protective layer, characterized in that, Comprising: An adjustable support base, including a top support and a height adjustment member. The top support has a limiting groove with an opening at the top. The height adjustment member is arranged at the bottom of the top support and is used to adjust the height of the top support; A separator, which is matched with the shape of the limiting groove and is detachably arranged in the limiting groove for forming a separation joint; A lifting assembly, which is detachably arranged on the upper part of the separator and is used to lift the separator to separate the separator from the top support.

2. The construction device for the separation joint of the roof concrete protective layer according to claim 1, characterized in that: A plurality of the adjustable support bases are uniformly arranged along the length direction of the separator.

3. The roofing concrete protective layer dividing joint construction device according to claim 1 or 2, characterized in that: The separator is a hollow steel member with a square cross-section.

4. The construction device for the separation joint of the roof concrete protective layer according to claim 3, characterized in that: The top end of the separator is higher than the top support.

5. The construction device for the separation joint of the roof concrete protective layer according to claim 1 or 4, characterized in that: The height adjustment member includes a bottom plate, a screw rod and a sleeve which are arranged in sequence from bottom to top. The sleeve is fixed at the bottom of the top support and is threadedly connected with the screw rod.

6. The construction device for the separation joint of the roof concrete protective layer according to claim 5, characterized in that: The lifting assembly includes a positioning member, a fixed platform and a rotating member. The positioning member is detachably arranged on the fixed platform and extends below the fixed platform; the rotating member is rotatably clamped to the fixed platform, and the bottom end is threadedly connected with the separator.

7. The construction device for the separation joint of the roof concrete protective layer according to claim 6, characterized in that: A groove is provided in the middle of the fixed platform, and a limiting hole is provided in the middle of the groove. The rotating member includes a rotating disk and a lifting rod. The lifting rod passes through the limiting hole and is threadedly connected with the separator; the rotating disk is embedded in the groove.

8. The construction device for the separation joint of the roof concrete protective layer according to claim 5 or 6, characterized in that: The positioning members are symmetrically arranged relative to the separator and are fixed to the fixed platform by nuts.

9. The construction device for the dividing joint of the roof concrete protective layer according to claim 8, characterized in that: The length of the positioning member below the fixed platform is not greater than the length of the lifting rod below the fixed platform.

10. A construction method for the separation joints of the roof concrete protective layer, characterized in that: Using the construction device for the separation joint of the roof concrete protection layer as described in any one of claims 1-9, including the following steps: After the construction of the roof waterproof layer is completed, lay the position line of the separation joint and place the adjustable support base at the position line of the separation joint; According to the thickness of the concrete protection layer and the height of the separator, adjust the height of the adjustable support base and temporarily fix the adjustable support base with mortar; Place the separator on the adjustable support base; Pour the concrete protection layer; After the concrete protection layer reaches the set strength requirement, install the lifting assembly on the upper part of the separator, rotate the rotating member to lift the separator, and remove the separator; Clean the separation joint.

Images