Detachable steel wire mesh fixing tool for post-cast strip

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a detachable steel wire mesh fixing tool for a post-cast strip, which comprises a steel reinforcement framework, a plurality of connecting sleeves and a plurality of steel reinforcement sections, one end of the connecting sleeve is used for the corresponding vertical steel bar to stretch into, and the other end of the connecting sleeve is used for the corresponding steel bar section on the water stop steel plate to stretch into. According to the utility model, the connection between the vertical reinforcing steel bars and the reinforcing steel bar sections is realized by utilizing the connecting sleeves, so that the reinforcing steel bar framework is fixed on the water stop steel plate, and the dense-mesh steel wire mesh is further fixed; when the steel reinforcement framework needs to be dismantled, the connecting sleeve is separated from the steel reinforcement section, the steel reinforcement framework does not need to be cut and can be repeatedly used, and the construction cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a detachable wire mesh fixing fixture for post-pouring strips. Background Technology

[0002] Currently, during building construction, when constructing a foundation raft slab, due to the large area of ​​the raft slab, a post-cast strip (reinforcing strip) is typically required within a length not exceeding 40m. Because the concrete on both sides of the post-cast strip (reinforcing strip) needs to be poured intermittently, or the concrete grade in this area differs from that on the sides, a dense wire mesh is needed to separate the post-cast strip (reinforcing strip) from the concrete on both sides. When the raft slab is thick, directly using dense wire mesh cannot intercept the concrete on both sides, requiring the addition of a reinforcing steel cage to fix the dense wire mesh. However, existing reinforcing steel cages are directly welded to the waterstop steel plate, resulting in numerous welding points. If the reinforcing steel cage is removed after concrete pouring, construction workers must cut the reinforcing bars at each welding point individually, which is not only labor-intensive and inefficient but also reduces the height of the reinforcing steel cage, making it difficult to reuse. Therefore, it is necessary to design a detachable reinforcing steel cage structure to achieve the goal of reusing the reinforcing steel cage. Utility Model Content

[0003] The present invention aims to provide a detachable wire mesh fixing fixture for post-pouring strips to solve the problem that existing steel reinforcement cages are difficult to reuse.

[0004] To achieve the above objectives, the present invention provides a detachable wire mesh fixing fixture for post-pouring strips, comprising a reinforcing steel skeleton, the reinforcing steel skeleton comprising horizontal reinforcing bars and a plurality of vertical reinforcing bars, the fixing fixture further comprising a plurality of connecting sleeves and a plurality of reinforcing bar segments, the reinforcing bar segments being fixedly connected to a waterstop steel plate, one end of the connecting sleeve being for the corresponding vertical reinforcing bar to be inserted, and the other end of the connecting sleeve being for the corresponding reinforcing bar segment to be inserted into the waterstop steel plate.

[0005] The working principle and beneficial effects of this solution are as follows: In this solution, the reinforcing bar segments are fixedly connected to the waterstop steel plate, and the dense wire mesh is tied to the reinforcing bar cage. Connecting sleeves are used to connect the vertical reinforcing bars and the reinforcing bar segments, thereby fixing the reinforcing bar cage to the waterstop steel plate and thus securing the dense wire mesh. When it is necessary to remove the reinforcing bar cage, the connecting sleeves can be separated from the reinforcing bar segments to remove the entire reinforcing bar cage without cutting it. The connecting sleeves are not damaged, and both the reinforcing bar cage and the connecting sleeves can be reused, thereby reducing construction costs.

[0006] Optionally, the connecting sleeve is a straight threaded sleeve, and the bottom of the vertical reinforcing bar and the top of the reinforcing bar segment are both provided with threaded segments that are threaded to engage with the straight threaded sleeve.

[0007] In this design, the bottom of the vertical reinforcing bars and the top of the reinforcing bar segments are both threadedly connected to straight threaded sleeves. Thus, rotating the straight threaded sleeves allows for the connection / disconnection between the vertical reinforcing bars and the reinforcing bar segments, and consequently, the connection / disconnection between the reinforcing bar cage and the waterstop plate. Furthermore, the threaded connection ensures a reliable connection between the vertical reinforcing bars and the reinforcing bar segments, thereby reliably supporting the dense wire mesh.

[0008] Optionally, the connecting sleeve is divided into two parts: one part is a straight threaded sleeve, and the other part is a smooth inner wall sleeve; the straight threaded sleeve is threadedly connected to the bottom end of the corresponding vertical reinforcing bar, and the top of the reinforcing bar segment corresponding to the straight threaded sleeve is provided with a threaded section that mates with the thread of the straight threaded sleeve; the smooth inner wall sleeve is fixedly connected to the bottom end of the corresponding vertical reinforcing bar.

[0009] In this design, some vertical reinforcing bars are connected to the reinforcing bar segments using straight threaded sleeves, while others are connected using smooth-walled sleeves. This restricts the vertical movement of the reinforcing bar cage, while lateral movement is limited by the straight threaded sleeves and the smooth-walled sleeves. Compared to designs where all connecting sleeves are straight threaded, this design replaces some straight threaded sleeves with smooth-walled sleeves, reducing the workload of workers rotating the straight threaded sleeves and improving the efficiency of reinforcing bar cage installation / removal.

[0010] Optionally, the straight threaded sleeve and the inner smooth sleeve are alternately arranged.

[0011] In this scheme, when straight threaded sleeves and smooth inner wall sleeves are alternately set, the vertical movement restriction points of the steel reinforcement cage are evenly distributed.

[0012] Optionally, one end of the vertical reinforcing bar protruding into the connecting sleeve abuts against one end of the reinforcing bar segment protruding into the connecting sleeve and is located in the middle of the connecting sleeve.

[0013] In this design, the vertical reinforcing bars and the reinforcing bar segments have the same length inside the connecting sleeve, and the vertical reinforcing bars can effectively transmit radial forces to the reinforcing bar segments through the connecting sleeve.

[0014] Optionally, the axial length of the threaded section on the reinforcing bar segment is 1 / 2 of the axial length of the straight threaded sleeve.

[0015] In this scheme, when the axial length of the threaded section on the rebar segment is 1 / 2 of the axial length of the straight threaded sleeve, the construction worker can simply rotate the straight threaded sleeve to the bottom to make the top of the rebar segment abut against the bottom of the vertical rebar. No measurement is required, and the operation is simple.

[0016] Optionally, the spacing between two adjacent vertical reinforcing bars is 150–200 mm.

[0017] In this design, a spacing of 50–200 mm between adjacent vertical reinforcing bars is reasonable and can effectively support the dense wire mesh.

[0018] Optionally, the diameter of both the transverse reinforcing bars and the vertical reinforcing bars is 16 mm. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the detachable wire mesh fixing fixture for the post-pouring strip in Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure when the steel reinforcement cage and the steel reinforcement segment are separated in Embodiment 1 of this utility model;

[0021] Figure 3 for Figure 2 A schematic diagram showing the structure when the connecting sleeve is hidden.

[0022] Figure 4 This is a schematic diagram of the structure when the steel reinforcement cage and the steel reinforcement segment are separated in Embodiment 2 of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure when the steel reinforcement cage and the steel reinforcement segment are separated in Embodiment 3 of this utility model. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method:

[0025] The markings in the accompanying drawings include: 1. Reinforcing bar cage, 110. Horizontal reinforcing bar, 120. 2. Reinforcing bar segment, 3. Straight threaded sleeve, 4. Threaded segment, 5. Water-stop steel plate, 6. Dense wire mesh, 7. Smooth inner sleeve.

[0026] Example 1

[0027] This embodiment is basically as follows: Figure 1 and Figure 2 As shown: A detachable wire mesh fixing fixture for post-pouring strips includes a reinforcing cage 1, several connecting sleeves, and several reinforcing bar segments 2. The reinforcing cage 1 includes horizontal reinforcing bars 110 and several vertical reinforcing bars 120. In this embodiment, there are three horizontal reinforcing bars 110, and the spacing between two adjacent vertical reinforcing bars 120 is 200mm (in another embodiment, the spacing between two adjacent vertical reinforcing bars 120 is 150mm). The diameter of both the horizontal reinforcing bars 110 and the vertical reinforcing bars 120 is 16mm. The horizontal reinforcing bars 110 and the vertical reinforcing bars 120 are welded together. The number of connecting sleeves is the same as the number of vertical reinforcing bars 120. One end of the connecting sleeve is inserted into the corresponding vertical reinforcing bar 120, and the other end of the connecting sleeve is inserted into the corresponding reinforcing bar segment 2 on the waterstop steel plate 5.

[0028] In this embodiment, the connecting sleeve is a straight thread sleeve 3, combined with... Figure 3 As shown, both the bottom of the vertical reinforcing bar 120 and the top of the reinforcing bar segment 2 are provided with threaded segments 4 that mate with the threaded sleeve 3. The axial length of the threaded segment 4 on the reinforcing bar segment 2 is half the axial length of the threaded sleeve 3. In addition, the axial length of the threaded segment 4 on the vertical reinforcing bar 120 is slightly greater than the axial length of the threaded sleeve 3. Initially, one end of the vertical reinforcing bar 120 that penetrates into the connecting sleeve abuts against the one end of the reinforcing bar segment 2 that penetrates into the connecting sleeve and is located in the middle of the connecting sleeve.

[0029] In practical use, the reinforcing bar segment 2 is welded to the waterstop steel plate 5, and the dense wire mesh 6 is tied to the reinforcing bar skeleton 1 with steel wire to complete the fixation of the dense wire mesh 6. During the concrete pouring process, the dense wire mesh 6 is supported by the fixing fixture. When it is necessary to remove the reinforcing bar skeleton 1, the construction worker rotates the straight threaded sleeve 3 counterclockwise, causing the straight threaded sleeve 3 to move upward until the straight threaded sleeve 3 is completely separated from the threaded segment 4 of the reinforcing bar segment 2, thereby separating the corresponding vertical reinforcing bar 120 from the reinforcing bar segment 2. The construction worker then rotates the remaining straight threaded sleeves 3 counterclockwise in sequence until all the straight threaded sleeves 3 are completely moved to the corresponding vertical reinforcing bar 120, thus completely removing the reinforcing bar skeleton 1 (with the straight threaded sleeves 3 attached to the reinforcing bar skeleton 1). In this way, no cutting operation is required during the removal process, and the reinforcing bar skeleton 1 and the straight threaded sleeves 3 can be reused, reducing construction costs.

[0030] Before the next use of the reinforcing steel cage 1, the new reinforcing steel segment 2 is threaded onto the straight threaded sleeve 3. Specifically, the construction worker aligns the new reinforcing steel segment 2 with the straight threaded sleeve 3, and then rotates the straight threaded sleeve 3 clockwise. The threaded section 4 on the reinforcing steel segment 2 is threaded into the straight threaded sleeve 3 until the threaded section 4 on the reinforcing steel segment 2 is fully inserted into the straight threaded sleeve 3. At this point, the reinforcing steel segment 2 and the vertical reinforcing steel 120 abut against each other inside the straight threaded sleeve 3, and the abutment position is located in the middle of the straight threaded sleeve 3. When in use, the reinforcing steel segment 2 is simply welded onto the corresponding waterstop steel plate 5.

[0031] In summary, in this embodiment, the steel reinforcement cage 1 and the connecting sleeve are reusable, and there is no need for construction personnel to cut the steel reinforcement, which reduces the amount of steel reinforcement used during construction and thus reduces construction costs.

[0032] Example 2

[0033] The difference between this embodiment and Embodiment 1 is that: Figure 4As shown, in this embodiment, the connecting sleeve is divided into two parts: one part is a straight threaded sleeve 3, and the other part is an inner smooth sleeve 7, with the straight threaded sleeve 3 and the inner smooth sleeve 7 alternately arranged. The straight threaded sleeve 3 is threadedly connected to the corresponding vertical reinforcing bar 120, and the top of the reinforcing bar segment 2 corresponding to the straight threaded sleeve 3 is provided with a threaded segment 4 that is threaded with the straight threaded sleeve 3; the inner smooth sleeve 7 is welded to the corresponding vertical reinforcing bar 120, and the bottom end of the vertical reinforcing bar 120 corresponding to the inner smooth sleeve 7 is located in the middle of the inner smooth sleeve 7, and the top of the reinforcing bar segment 2 is clearance-fitted inside the inner smooth sleeve 7.

[0034] In practical use, rotating the straight threaded sleeve 3 counterclockwise or clockwise allows for the connection or separation of the corresponding vertical reinforcing bar 120 and the corresponding reinforcing bar segment 2; moving the reinforcing bar cage 1 upwards or downwards allows for the connection or separation of the corresponding vertical reinforcing bar 120 and the corresponding reinforcing bar segment 2. Therefore, the reinforcing bar segment 2 corresponding to the inner smooth sleeve 7 is first welded to the corresponding position on the waterstop steel plate 5, then the reinforcing bar cage 1 is lifted so that the inner smooth sleeve 7 is directly opposite the corresponding reinforcing bar segment 2. Then, the reinforcing bar cage 1 is lowered so that the top of the reinforcing bar segment 2, directly opposite the inner smooth sleeve 7, is inserted into the inner smooth sleeve 7. Finally, the reinforcing bar segment 2 inside the straight threaded sleeve 3 is welded to the waterstop steel plate 5, thus completing the installation of the reinforcing bar cage 1. In this way, compared to Embodiment 1, the number of connecting sleeves that construction personnel need to rotate is reduced in this embodiment, and the assembly and disassembly efficiency of the reinforcing bar cage 1 is higher than in Embodiment 1.

[0035] Example 3

[0036] The difference between this embodiment and Embodiment 1 is that: Figure 5 As shown, in this embodiment, the connecting sleeve is a smooth-walled sleeve 7, which is welded to the vertical reinforcing bar 120, with the bottom end of the vertical reinforcing bar 120 located in the middle of the smooth-walled sleeve 7. Thus, by welding the reinforcing bar segment 2 to the water-stop steel plate 5, lifting the reinforcing bar skeleton 1 so that the smooth-walled sleeve 7 is aligned with the corresponding reinforcing bar segment 2, and lowering the reinforcing bar skeleton 1, the installation of the reinforcing bar skeleton 1 is completed, allowing it to support the dense wire mesh 6. When it is necessary to remove the reinforcing bar skeleton 1, the construction personnel simply lift the reinforcing bar skeleton 1 upwards; the operation is simple.

[0037] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness or practicality of this utility model. The specific embodiments described in the specification can be used to interpret the claims.

Claims

1. A detachable wire mesh fixing fixture for post-cast strips, comprising a reinforcing steel cage, wherein the reinforcing steel cage includes transverse reinforcing bars and a plurality of vertical reinforcing bars, characterized in that: The fixing fixture also includes several connecting sleeves and several steel bar segments. The steel bar segments are fixedly connected to the waterstop steel plate. One end of the connecting sleeve is for the corresponding vertical steel bar to be inserted, and the other end of the connecting sleeve is for the corresponding steel bar segment to be inserted into the waterstop steel plate.

2. The detachable wire mesh fixing fixture for post-pouring strips according to claim 1, characterized in that: The connecting sleeve is a straight threaded sleeve, and the bottom of the vertical reinforcing bar and the top of the reinforcing bar segment are both provided with threaded segments that are threaded to fit the straight threaded sleeve.

3. The detachable wire mesh fixing fixture for post-pouring strips according to claim 1, characterized in that: The connecting sleeve is divided into two parts: one part is a straight threaded sleeve, and the other part is a smooth inner wall sleeve. The straight threaded sleeve is threadedly connected to the bottom end of the corresponding vertical reinforcing bar, and the top of the reinforcing bar segment corresponding to the straight threaded sleeve is provided with a threaded section that mates with the thread of the straight threaded sleeve. The smooth inner wall sleeve is fixedly connected to the bottom end of the corresponding vertical reinforcing bar.

4. The detachable wire mesh fixing fixture for post-pouring strips according to claim 3, characterized in that: The straight threaded sleeve and the inner smooth sleeve are alternately arranged.

5. The detachable wire mesh fixing fixture for post-pouring strips according to claim 1, characterized in that: One end of the vertical reinforcing bar protrudes into the connecting sleeve and abuts against the other end of the reinforcing bar segment protruding into the connecting sleeve, and is located in the middle of the connecting sleeve.

6. The detachable wire mesh fixing fixture for post-pouring strips according to claim 2 or 3, characterized in that: The axial length of the threaded section on the reinforcing bar segment is 1 / 2 of the axial length of the straight threaded sleeve.

7. The detachable wire mesh fixing fixture for post-pouring strips according to claim 1, characterized in that: The spacing between two adjacent vertical reinforcing bars is 150-200mm.

8. The detachable wire mesh fixing fixture for post-pouring strips according to claim 1, characterized in that: The diameter of both the horizontal and vertical reinforcing bars is 16mm.

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