An ultra-high precision steel bar positioning assembly and construction method thereof

Abstract

The present invention discloses an ultra-high precision steel bar positioning assembly and a construction method thereof, comprising a positioning plate, a positioning hole provided on the positioning plate, a positioning nut provided above the positioning hole; and a reducing bolt, which is screwed together with the positioning nut and a transition sleeve respectively, and a threaded screw head located at the end of the steel bar to be positioned at the bottom of the transition sleeve. The construction method is as follows: A. A threaded screw head is provided at the end of the steel bar; B. A transition sleeve is screwed onto the threaded screw head; C. A positioning plate is made according to the steel bar and the layout, and a positioning hole is opened at the position of the steel bar to be positioned; D. A positioning nut is welded at the center position above the positioning hole of the positioning steel plate; E. A reducing bolt is processed and made; F. The reducing bolt is screwed onto the positioning nut, with the positioning hole exposed at the lower end; G. The reducing bolt is connected to the transition sleeve on the steel bar to be positioned; H. The positioning steel bar and the stirrups are then tied together. The present invention has the characteristic of effectively ensuring the accuracy of the steel bar position.

Description

Technical Field

[0001] The invention relates to a steel bar positioner, in particular to an ultra-high precision steel bar positioning component and a construction method thereof. Background Art

[0002] Reinforced concrete structures are made up of a combination of steel bars and concrete, with the concrete tightly wrapping the steel bars. In order to meet the connection and force requirements, the steel bars need to be precisely positioned in the concrete. However, existing technologies often only open holes in the positioning plates and position the steel bars by passing them through the holes. In addition, in order to facilitate the passage of the steel bars through the holes, the diameter of the holes on the positioning plates is often opened relatively large, which seriously affects the positioning accuracy of the steel bars. Low steel bar positioning accuracy will affect the connection of the steel bars, especially sleeve grouting connections or sleeve connections, which require very high accuracy in the position of the steel bars. The existing conventional positioning method of opening holes on the positioning plates cannot meet construction needs. Therefore, there is an urgent need to develop a steel bar positioning component that can effectively ensure the accuracy of the steel bar position. Summary of the Invention

[0003] The purpose of the present invention is to provide an ultra-high precision steel bar positioning assembly and a construction method thereof. The present invention has the characteristic of effectively ensuring the position accuracy of the steel bars.

[0004] The technical solution of the present invention: an ultra-high precision steel bar positioning assembly, including a positioning plate, a group of positioning holes matching the steel bars to be positioned are provided on the positioning plate, a positioning nut is provided above the positioning holes, the positioning holes and the positioning nuts are distributed concentrically, and the inner diameter of the positioning nut is smaller than the positioning holes; it also includes a reducing bolt, the reducing bolt matches the positioning nut, the bottom of the reducing bolt is connected to a transition sleeve located below the positioning plate, and the bottom of the transition sleeve is provided with a threaded wire head located at the end of the steel bar to be positioned.

[0005] In the aforementioned ultra-high precision steel bar positioning assembly, an internal thread structure is provided inside the transition sleeve to cooperate with the threaded wire head.

[0006] In the aforementioned ultra-high precision steel bar positioning assembly, the reducing bolt includes a hexagonal head, and a large diameter stud and a small diameter stud are arranged below the hexagonal head in sequence; the external thread of the large diameter stud matches the internal thread of the positioning nut; the external thread of the small diameter stud matches the internal thread of the transition sleeve.

[0007] In the aforementioned ultra-high precision steel bar positioning assembly, the inner diameter of the positioning nut is larger than the diameter of the steel bar to be positioned.

[0008] In the aforementioned ultra-high precision steel bar positioning assembly, a central hole is further provided in the middle of the positioning plate.

[0009] A construction method for an ultra-high precision steel bar positioning assembly comprises the following steps:

[0010] A. Set a threaded head at the end of the steel bar to be positioned;

[0011] B. Screw the transition sleeve onto the threaded wire head;

[0012] C. According to the distribution of the steel bars to be positioned, make positioning plates and open positioning holes at the corresponding positions of the steel bars to be positioned;

[0013] D. Weld the positioning nut in the center above the positioning hole of the positioning steel plate;

[0014] E. Processing and manufacturing reducing bolts;

[0015] F. Screw the reducing bolt into the positioning nut until the lower end of the reducing bolt is exposed from the positioning hole;

[0016] G. Connect the reducing bolt to the transition sleeve on the steel bar to be positioned;

[0017] H. Then tie the positioning steel bars and stirrups.

[0018] Compared with the prior art, the present invention can achieve precise positioning of the steel bars through the mutual cooperation between the positioning plate, the positioning holes and positioning nuts provided on the positioning plate, the reducing bolts, the transition sleeve and the steel bars to be positioned with threaded heads. The precise positioning of the steel bars can reduce the difficulty of connecting the steel bars and improve the construction quality. During the construction process, the positioning assembly is connected to the steel bars, which can effectively prevent the positioning steel bars from being displaced during the subsequent construction process, thereby ensuring the accuracy of the steel bar position. In summary, the present invention has the characteristics of being able to effectively ensure the accuracy of the steel bar position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 yes Figure 1 A partial enlarged view of the

[0021] Figure 3 This is the structural view of the reducing bolt;

[0022] Figure 4 This is a partial view of the positioning nut and positioning plate after assembly;

[0023] Figure 5 It is a top view of the positioning plate and positioning nut;

[0024] Figure 6 is a top view of the positioning plate;

[0025] Figure 7 It is the assembly view of the steel bar to be positioned and the transition sleeve;

[0026] Figure 8 It is a cross-sectional view of a frame column.

[0027] The marks in the accompanying drawings are: 1-positioning plate, 2-positioning hole, 3-positioning nut, 4-reducing bolt, 5-transition sleeve, 6-rebar to be positioned, 7-threaded head, 8-middle hole, 401-hexagonal head, 402-large diameter stud, 403-small diameter stud. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.

[0029] Embodiment. An ultra-high precision steel bar positioning assembly, comprising: Figure 1-7 As shown, it includes a positioning plate 1, which is provided with a group of positioning holes 2 that match the steel bars 6 to be positioned, and a positioning nut 3 is provided above the positioning hole 2. The positioning hole 2 and the positioning nut 3 are distributed concentrically, and the inner diameter of the positioning nut 3 is smaller than the positioning hole 2; it also includes a reducing bolt 4, which matches the positioning nut 3, and the bottom of the reducing bolt 4 is connected to a transition sleeve 5 located below the positioning plate 1, and the bottom of the reducing bolt 4 is provided with a transition sleeve 5, and the bottom of the transition sleeve 5 is provided with a threaded wire head 7 located at the end of the steel bar to be positioned.

[0030] An internal thread structure is provided inside the transition sleeve 5 and matches with the thread head 7 .

[0031] The reducing bolt 4 includes a hexagonal head 401, below which are arranged a large diameter stud 402 and a small diameter stud 403 in sequence; the external thread of the large diameter stud 402 matches the internal thread of the positioning nut 3; the external thread of the small diameter stud 403 matches the internal thread of the transition sleeve 5.

[0032] The inner diameter of the positioning nut 3 and the outer diameter of the large-diameter stud 402 are both smooth structures, and the inner diameter of the positioning nut 3 is slightly larger than the outer diameter of the large-diameter stud 402 .

[0033] The inner diameter of the positioning nut 3 is larger than the diameter of the steel bar to be positioned.

[0034] A central hole 8 is also provided in the middle of the positioning plate 1 .

[0035] The method of using the steel bar positioning component in this application is as follows:

[0036] 1. First, set a threaded screw head at the end of the steel bar to be positioned. The threaded screw head is used for both positioning the steel bar and for subsequent steel bar connection.

[0037] 2. Screw the transition sleeve onto the threaded head of the steel bar. The transition sleeve is used to position the steel bar and also to protect the thread of the steel bar to prevent it from sticking to the concrete slurry during the concrete pouring process.

[0038] 3. Make a positioning plate (usually a steel plate). The shape of the positioning plate is determined by the steel bars to be positioned. The positioning plate is generally rectangular, circular, etc., consistent with the cross-section of the component. In order to facilitate the pouring of concrete and save materials and reduce weight, a central opening is generally opened in the middle of the positioning plate. The shape of the central opening is rectangular or circular. Positioning holes are opened in the positioning plate at the position of the steel bars to be positioned. In order to improve the versatility of the positioning plate, the diameter of the positioning hole needs to be larger than the diameter of the steel bar that may be used. The diameter of the positioning hole can be set to the diameter of the steel bar that may be used + 4mm; the commonly used steel bar diameters in engineering are 12, 14, 16, 18, 20, 22, and 25mm. The less commonly used steel bar diameters are 28mm and 32mm. Therefore, the diameter of the steel bar to be positioned may be 32mm, and the diameter of the positioning hole can be set to 36mm.

[0039] 4. Weld a locating nut directly above the locating hole in the locating plate. The locating nut is hollow and has internal threads. The inner diameter of the locating nut should be smaller than the diameter of the locating plate opening, but larger than the diameter of the rebar to be positioned (generally, the diameter of the rebar to be positioned + 2mm). Therefore, according to the previous logic, the inner diameter of the locating nut can be set to 34mm.

[0040] 5. Processing and manufacturing of reducing bolts. The reducing bolts are composed of three parts, as follows Figure 3 As shown, from top to bottom are hexagonal head, large diameter stud, and small diameter stud.

[0041] Both the large-diameter stud and the small-diameter stud have external threads. The external threads of the large-diameter stud match the internal threads of the positioning nut. The external threads of the small-diameter stud match the internal threads of the transition sleeve.

[0042] 6. Screw the reducing bolt into the positioning nut as follows Figure 2 As shown:

[0043] 7. Connect the reducing bolt to the sleeve on the steel bar to be positioned, ensuring that the upper external thread of the steel bar to be positioned is not exposed;

[0044] 8. Then tie the positioning steel bars and stirrups to improve the integrity of the steel frame. Taking the frame column as an example, the cross section of the frame column is as follows Figure 8 As shown:

[0045] The device of the present application can also be used for positioning anchor bolts, anchor bars, and steel cages and steel skeletons;

[0046] The inner diameter of the positioning nut can be smooth, and the outer periphery of the large diameter stud of the reducing bolt is also smooth, matching the inner diameter of the positioning nut. The inner diameter of the positioning nut 3 is slightly larger than the outer diameter of the large diameter stud 402. The difference between the two determines the accuracy of the steel bar positioning, that is, the tolerance of the two is used to control the accuracy of the steel bar positioning.

[0047] After the steel bar positioning assembly is used, that is, after the concrete pouring is completed, all the reducing bolts, transition sleeves, etc. can be removed and the steel bar positioning assembly can be dismantled and reused.

Claims

1. An ultra-high precision steel bar positioning assembly, characterized by: The present invention comprises a positioning plate (1), wherein the positioning plate (1) is provided with a group of positioning holes (2) matched with the steel bars (6) to be positioned, a positioning nut (3) is provided above the positioning hole (2), the positioning hole (2) and the positioning nut (3) are distributed in a concentric axis, and the inner diameter of the positioning nut (3) is smaller than that of the positioning hole (2); and further comprises a reducing bolt (4), wherein the reducing bolt (4) matches the positioning nut (3), and the bottom of the reducing bolt (4) is provided with a transition sleeve (5) located below the positioning plate (1), and the bottom of the transition sleeve (5) is provided with a transition sleeve located at the end of the steel bars to be positioned. The threaded head (7) of the transition sleeve (5) is provided with an internal thread structure inside, which matches the threaded head (7); the reducing bolt (4) includes a hexagonal head (401), and a large-diameter stud (402) and a small-diameter stud (403) are provided below the hexagonal head (401); the external thread of the large-diameter stud (402) matches the internal thread of the positioning nut (3); the external thread of the small-diameter stud (403) matches the internal thread of the transition sleeve (5); the inner diameter of the positioning nut (3) is larger than the diameter of the steel bar (6) to be positioned; A central hole (8) is also provided in the central portion of the positioning plate (1).

2. The ultra-high precision steel bar positioning assembly according to claim 1, characterized in that: The inner diameter of the positioning nut (3) and the outer diameter of the large-diameter stud (402) are both smooth structures, and the inner diameter of the positioning nut (3) is larger than the outer diameter of the large-diameter stud (402).

3. A construction method using an ultra-high precision steel bar positioning assembly according to any one of claims 1-2, characterized in that: The following steps are involved: A. Set a threaded head at the end of the steel bar to be positioned; B. Screw the transition sleeve onto the threaded wire head; C. According to the distribution of the steel bars to be positioned, make positioning plates and open positioning holes at the corresponding positions of the steel bars to be positioned; D. Weld the positioning nut in the center above the positioning hole of the positioning steel plate; E. Processing and manufacturing reducing bolts; F. Screw the reducing bolt into the positioning nut until the lower end of the reducing bolt is exposed from the positioning hole; G. Connect the reducing bolt to the transition sleeve on the steel bar to be positioned; H. Then tie the positioning steel bars and stirrups.

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