Square pipe frame body vertical rod type reinforcing steel bar protective layer and floor thickness construction control device

By combining a guide sleeve, slide table, screw, worm gear, worm, turntable and cross lever, the problem of the inability to adjust the thickness of the protective layer of the steel bars on the uprights of the square tube frame is solved, and flexible and precise control of the floor slab thickness is achieved.

CN224228117UActive Publication Date: 2026-05-12CHINA TUNNEL CONSTRUCTION CO LTD GUANGDONG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TUNNEL CONSTRUCTION CO LTD GUANGDONG
Filing Date
2025-05-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing technologies, the thickness of the protective layer for the upright steel bars of the square tube frame cannot be flexibly adjusted, resulting in insufficient precision in thickness control during floor slab construction.

Method used

The adjustment assembly consists of a guide sleeve, slide table, screw, worm gear, worm, turntable, and cross lever. The cross lever rotates the turntable, which drives the worm and worm gear, causing the screw to rotate, thereby achieving the sliding adjustment of the slide table and ensuring that the distance between the upper and lower steel mesh is adjustable.

Benefits of technology

It enables flexible adjustment of the thickness of the steel reinforcement protective layer, ensuring that the overall thickness of the floor slab is within the design range and improving construction accuracy.

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Abstract

The utility model discloses a square tube frame body vertical rod type reinforcing steel bar protective layer and floor thickness construction control device. The thickness construction control device has the advantages that the adjusting assembly composed of the guide sleeve, the sliding table, the screw rod, the worm gear, the worm, the rotating disc and the cross-shaped shifting block is installed between the upper support and the lower support, so that when the thickness construction control device for the reinforcing steel bar protective layer and the floor slab is used, the rotating disc can be rotated through the cross-shaped shifting block; the worm gear rotates by means of the worm in the rotating process of the rotating disc, the screw rod rotates after the worm gear rotates, and the sliding table moves upwards and slides along the guide sleeve under the action of thread transmission after the screw rod rotates, so that the height of the upper support is adjusted, and the distance between an upper reinforcing steel bar net rack and a lower reinforcing steel bar net rack in a reinforcing steel bar protective layer is adjusted. And the thickness of the steel bar protection layer after construction is ensured to be within the design range of the overall thickness of the floor, so that the overall thickness of the floor is controlled more flexibly and accurately.
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Description

Technical Field

[0001] This utility model relates to the field of floor slab thickness control technology, specifically to a square tube frame upright steel reinforcement protective layer and floor slab thickness construction control device. Background Technology

[0002] During the construction of building floor slabs, in order to ensure that the thickness of the floor slab meets the design requirements after construction, it is necessary to control the thickness of the protective layer of the square tube frame upright steel bars on the floor slab.

[0003] Currently, in the construction of the reinforced concrete cover using a square tube frame, a fixed-height, double-layered vertical square tube is mainly used to control the spacing between the upper and lower layers of the reinforced concrete cover. Although the double-layered vertical square tube can control the distance between the upper and lower layers of the reinforced concrete cover, the fixed height of the vertical square tube means that the thickness of the reinforced concrete cover on the floor slab cannot be flexibly adjusted according to the actual laying needs. This results in insufficient flexibility and precision in controlling the overall thickness of the floor slab during construction. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a square tube frame upright type steel reinforcement protective layer and floor slab thickness construction control device that can flexibly adjust and control the thickness of the steel reinforcement protective layer according to the actual construction needs, so as to ensure that the overall thickness of the floor slab meets the design requirements after construction.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a construction control device for the protective layer of steel reinforcement and the thickness of floor slab in a square tube frame upright, including a lower support, an upper support installed on the upper side of the lower support, and an adjustment component installed between the upper support and the lower support. The adjustment component includes a guide sleeve, a slide, a screw, a worm gear, a worm, a turntable, and a cross lever.

[0008] Furthermore, the guide sleeve is a straight-through square tube, and the guide sleeve is welded to the outer periphery of the top end of the lower support.

[0009] Furthermore, the slide is installed at the middle of the bottom end of the upper support, and the slide is slidably engaged with the guide sleeve.

[0010] Furthermore, the slide is a square solid rod structure, and a threaded groove is reserved at the part where the slide and the screw mate.

[0011] Furthermore, the screw is rotatably engaged with the lower support, the worm gear is welded to the bottom end of the screw, and the worm is mounted on the lower support on one side of the worm gear.

[0012] Furthermore, the turntable is welded to one end of the worm gear, the cross-shaped lever is welded to the outer wall of the turntable, the lower support has a hollow structure at the worm wheel and the worm gear, and the lower support has a concave structure at the turntable.

[0013] Furthermore, a limiting groove is reserved on each of the four side walls of the lower support to cooperate with the node of the lower steel mesh.

[0014] Furthermore, two grooves are symmetrically provided on both sides of the top of the upper support, and two grooves are symmetrically provided on the other two sides of the top of the upper support.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This invention utilizes an adjustment assembly consisting of a guide sleeve, slide, screw, worm gear, worm, turntable, and cross lever to control the construction thickness of the reinforcing steel cover and floor slab. During use, the cross lever rotates the turntable, which in turn rotates the worm gear, causing the screw to rotate. This screw rotation, through threaded transmission, causes the slide to slide upwards along the guide sleeve, thus adjusting the height of the upper support. This, in turn, allows for adjustment of the distance between the upper and lower reinforcing steel mesh in the concrete cover, ensuring that the thickness of the concrete cover remains within the designed range for the overall floor slab thickness after construction. This makes the control of the overall floor slab thickness more flexible and precise. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the square tube frame upright steel reinforcement protective layer and floor slab thickness construction control device described in this utility model;

[0019] Figure 2 This is a front sectional view of the square tube frame upright steel reinforcement protective layer and floor slab thickness construction control device described in this utility model.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Groove 1; 2. Upper support; 3. Groove 2; 4. Lower support; 5. Limiting groove; 6. Adjustment assembly; 601. Guide sleeve; 602. Slide table; 603. Screw; 604. Worm gear; 605. Worm; 606. Turntable; 607. Cross lever. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] like Figures 1-2 As shown, the construction control device for the concrete cover and floor slab thickness of the square tube scaffold uprights in this embodiment includes a lower support 4, an upper support 2 installed on the upper side of the lower support 4, and an adjustment component 6 installed between the upper support 2 and the lower support 4. The adjustment component 6 includes a guide sleeve 601, a slide 602, a screw 603, a worm gear 604, a worm 605, a turntable 606, and a cross lever 607. When adjusting the distance between the upper and lower steel mesh before the construction of the concrete cover of the square tube scaffold uprights, the turntable 606 is first rotated by the cross lever 607. During the rotation of turntable 606, worm gear 605 causes worm wheel 604 to rotate. After worm wheel 604 rotates, screw 603 rotates. After screw 603 rotates, it causes slide table 602 to slide upward along guide sleeve 601 under the action of thread transmission, so as to adjust the height of upper support 2. This allows for the adjustment of the distance between upper and lower steel mesh in the steel reinforcement protective layer. After the distance between upper and lower steel mesh is adjusted, the adjusted device can be placed at the corresponding node between upper and lower steel mesh to realize the pouring construction of steel reinforcement protective layer.

[0024] like Figures 1-2 As shown, in this embodiment, the guide sleeve 601 is a straight square tube. The guide sleeve 601 is welded to the outer periphery of the top of the lower support 4. The guide sleeve 601 is mainly used to guide the sliding direction of the slide table 602. The slide table 602 is installed in the middle of the bottom end of the upper support 2. The slide table 602 and the guide sleeve 601 slide together. The cooperation between the guide sleeve 601 and the slide table 602 can ensure the smooth lifting and lowering adjustment of the slide table 602 under the threaded transmission. The slide table 602 is a square solid rod structure. The part where the slide table 602 and the screw 603 cooperate has a reserved threaded groove. The screw 603 cooperates with the reserved threaded groove on the slide table 602, so that the slide table 602 can be easily lifted and lowered along the guide sleeve 601 under the transmission action of the screw 603.

[0025] like Figures 1-2As shown, in this embodiment, the screw 603 is rotatably engaged with the lower support 4. The worm gear 604 is welded to the bottom end of the screw 603. The worm 605 is mounted on the lower support 4 on one side of the worm gear 604. The worm 605 is mainly used to transmit externally applied power to the worm gear 604, causing the worm gear 604 to rotate. The turntable 606 is welded to one end of the worm 605. The cross-shaped lever 607 is welded to the outer wall of the turntable 606. The lower support 4 has a hollow structure at the worm gear 604 and worm 605, and the lower support 4 has a concave structure at the turntable 606. The cross-shaped lever 607 allows the operator to easily rotate the turntable 606.

[0026] like Figures 1-2 As shown in this embodiment, a limiting groove 5 is reserved on each of the four side walls of the lower support 4 to cooperate with the node of the lower steel mesh. The limiting groove 5 cooperates with the node on the lower steel mesh to realize the limiting of the lower steel mesh.

[0027] like Figures 1-2 As shown in this embodiment, two symmetrical slots 1 are opened on both sides of the top of the upper support 2, and two symmetrical slots 3 are opened on the other two sides of the top of the upper support 2. The depth of slot 1 is greater than the depth of slot 3. This design can ensure that the cross nodes on the upper steel mesh can be smoothly placed on the upper side of the upper support 2, thereby realizing the overlap limit of the upper steel mesh.

[0028] The specific implementation process of this embodiment is as follows: During the construction of the square tube frame upright steel reinforcement protective layer, the turntable 606 is first rotated by the cross lever 607, so that the worm gear 604 can be rotated by the worm 605 during the rotation of the turntable 606. After the worm gear 604 rotates, the screw 603 will rotate. After the screw 603 rotates, the slide table 602 will slide upward along the guide sleeve 601 under the action of thread transmission, so as to adjust the height of the upper support 2, thereby adjusting the distance between the upper steel reinforcement mesh and the lower steel reinforcement mesh in the steel reinforcement protective layer. After the distance between the upper steel reinforcement mesh and the lower steel reinforcement mesh is adjusted, the adjusted device is simply placed at the corresponding node between the upper steel reinforcement mesh and the lower steel reinforcement mesh to realize the pouring construction of the steel reinforcement protective layer. Under the action of this device, the thickness of the steel reinforcement protective layer can be flexibly adjusted and controlled according to the actual laying needs, ensuring that the thickness of the steel reinforcement protective layer after construction is within the design range of the overall thickness of the floor slab, making the control of the overall thickness of the floor slab more flexible and precise.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction control device for the protective layer and floor slab thickness of reinforced concrete in a square tube frame structure, characterized in that: It includes a lower support (4), an upper support (2) is installed on the upper side of the lower support (4), and an adjustment component (6) is installed between the upper support (2) and the lower support (4). The adjustment component (6) includes a guide sleeve (601), a slide (602), a screw (603), a worm gear (604), a worm (605), a turntable (606), and a cross lever (607).

2. The construction control device for the protective layer and floor slab thickness of the square tube frame uprights as described in claim 1, characterized in that: The guide sleeve (601) is a straight square tube, and the guide sleeve (601) is welded to the outer periphery of the top of the lower support (4).

3. The construction control device for the protective layer and floor slab thickness of the square tube frame uprights as described in claim 2, characterized in that: The slide (602) is installed at the bottom center of the upper support (2), and the slide (602) slides in cooperation with the guide sleeve (601).

4. The construction control device for the protective layer and floor slab thickness of the square tube frame uprights as described in claim 3, characterized in that: The slide (602) is a square solid rod structure, and the part where the slide (602) and the screw (603) meet is provided with a screw groove.

5. The construction control device for the protective layer and floor slab thickness of the square tube frame uprights as described in claim 4, characterized in that: The screw (603) is rotatably engaged with the lower support (4), the worm gear (604) is welded to the bottom end of the screw (603), and the worm (605) is mounted on the lower support (4) on one side of the worm gear (604).

6. The construction control device for the protective layer and floor slab thickness of the square tube frame uprights as described in claim 5, characterized in that: The turntable (606) is welded to one end of the worm (605), the cross block (607) is welded to the outer wall of the turntable (606), the lower support (4) is hollow at the worm wheel (604) and the worm (605), and the lower support (4) is concave at the turntable (606).

7. The construction control device for the protective layer and floor slab thickness of the square tube frame uprights as described in claim 1, characterized in that: The lower support (4) has a limiting groove (5) reserved on each of its four side walls to cooperate with the node of the lower steel mesh.

8. The construction control device for the protective layer and floor slab thickness of the square tube frame uprights as described in claim 1, characterized in that: The upper support (2) has two symmetrical slots (1) on both sides of its top end, and two symmetrical slots (3) on the other two sides of its top end.