Large-diameter steel cage straight thread sleeve butt joint device

Abstract

The utility model discloses a large diameter reinforcement cage straight thread sleeve butt joint device, including steel bar positioning hoop outer hoop, steel bar positioning hoop inner hoop, positioning buckle, support reinforcement and butt joint reinforcement, wherein steel bar positioning hoop outer hoop and steel bar positioning hoop inner hoop's quantity all are set to two groups, and two steel bar positioning hoop outer hoops are in parallel distribution, the steel bar positioning hoop outer hoop inside is provided with outer hoop positioning hole, two steel bar positioning hoop inner hoops and steel bar positioning hoop outer hoop parallel distribution. The utility model discloses a positioning buckle with two steel bar positioning hoop inner hoops and two steel bar positioning hoop outer hoops positioning combination, makes it coaxial distribution, and forms stable butt joint device, can ensure that multiple straight thread sleeves all are located between two steel bar positioning hoop inner hoops, and is in the same horizontal plane, to improve the quality of connection, ensure the bearing capacity and stability of reinforcement cage, satisfy the demand of building industry to large diameter reinforcement cage high quality connection, improve the problem that straight thread sleeve is poor in cooperation when connecting.

Description

Technical Field

[0001] This utility model belongs to the field of rebar cage positioning and docking technology, specifically relating to a rebar cage straight thread sleeve docking device. Background Technology

[0002] In modern construction engineering, the structural stability of large-diameter steel reinforcement cages is crucial, and the quality of their connections directly affects structural safety. Traditional welding and tying connections have significant drawbacks: welding quality is greatly affected by the environment and welder's skills, construction is time-consuming, and it can easily damage the properties of the steel reinforcement; tying connections lack sufficient strength. Straight threaded sleeve connections offer advantages such as high strength, high reliability, ease of operation, and minimal susceptibility to environmental factors.

[0003] For large-diameter steel cage structures using straight-threaded sleeve connections, the following problems arise in application: due to their large weight and diameter, positioning multiple steel bars is difficult, leading to inconsistent connection quality of the straight-threaded sleeves. Although straight-threaded sleeve connections offer high strength, in large-diameter scenarios, relying solely on the sleeve is insufficient to guarantee overall positioning accuracy, easily resulting in docking deviations. Existing positioning technologies (such as positioning ribs and positioning rings) have limited effectiveness in small-diameter steel cages, while in large-diameter applications, they suffer from low positioning accuracy, easy displacement, and poor coordination with the sleeve connection.

[0004] Therefore, it is necessary to research and develop a straight threaded sleeve docking device for large-diameter steel cages to solve the above problems. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a straight threaded sleeve docking device for large-diameter steel cages, which solves the problems of inaccurate docking of upper and lower steel cage sections and poor connection quality, ensuring the load-bearing capacity and stability of the steel cage, and meeting the construction industry's demand for high-quality connections of large-diameter steel cages.

[0006] The present invention provides the following technical solution: A large-diameter rebar cage straight thread sleeve docking device includes an outer rebar positioning hoop, an inner rebar positioning hoop, a positioning buckle, supporting rebars, and docking rebars. The number of both the outer and inner rebar positioning hoops is set to two sets, with the two sets of outer rebar positioning hoops distributed in parallel. An outer hoop positioning hole is provided on the inner side of each outer rebar positioning hoop. The two sets of inner rebar positioning hoops are distributed in parallel with the outer rebar positioning hoops and positioned between the two sets of outer rebar positioning hoops. An inner hoop positioning hole is provided on the outer side of each inner rebar positioning hoop. The positioning buckle is used to position and combine two sets of outer reinforcing bar positioning hoops and two sets of inner reinforcing bar positioning hoops, and the positioning buckle can be detachably installed between the inner and outer sides of the outer reinforcing bar positioning hoops and the inner reinforcing bar positioning hoops. The supporting reinforcing bars and butt reinforcing bars are alternately distributed and embedded between the outer hoops of the two sets of reinforcing bar positioning hoops and the inner hoops of the two sets of reinforcing bar positioning hoops. The butt reinforcing bars include a straight threaded sleeve, an upper layer of reinforcing bars and a lower layer of reinforcing bars. The straight threaded sleeve is located between the inner hoops of the two sets of reinforcing bar positioning hoops, and the upper layer of reinforcing bars and the lower layer of reinforcing bars are respectively threaded to both ends of the straight threaded sleeve.

[0007] Preferably, the number of outer hoop positioning holes and inner hoop positioning holes is set to multiple, and the multiple outer hoop positioning holes and multiple inner hoop positioning holes are arranged in a circular array, and the multiple outer hoop positioning holes are distributed in a one-to-one correspondence with the multiple inner hoop positioning holes.

[0008] Preferably, the outer hoop of the reinforcing bar positioning hoop has the same inner diameter as the inner hoop of the reinforcing bar positioning hoop, and the outer diameter of the outer hoop of the reinforcing bar positioning hoop is larger than the inner diameter of the inner hoop of the reinforcing bar positioning hoop, so that the multiple outer hoop positioning holes and inner hoop positioning holes distributed longitudinally are coaxially distributed.

[0009] Preferably, the number of supporting reinforcing bars and butt reinforcing bars is equal to half the number of positioning holes on the outer hoop of a reinforcing bar positioning hoop, and the two ends of the ring structure formed by the multiple supporting reinforcing bars and butt reinforcing bars are tied with hoops.

[0010] Preferably, the outer diameters of the supporting reinforcing bars, the upper reinforcing bars, and the lower reinforcing bars are equal, and are equal to the inner diameters of the outer hoop positioning holes or the inner hoop positioning holes.

[0011] Preferably, the ends of the upper and lower reinforcing bars are respectively provided with positive and negative external threads, and the inner ends of the straight thread sleeve are respectively provided with positive and negative internal threads that match the positive and negative external threads at the ends of the upper and lower reinforcing bars. The length of the positive and negative external threads of the upper and lower reinforcing bars is set to half the total length of the straight thread sleeve.

[0012] Preferably, the number of positioning buckles is at least two, which includes a positioning bolt, an outer positioning buckle and an inner positioning buckle. The positioning bolt passes through the outer positioning buckle and is rotatably connected to the through hole. The positioning bolt is threadedly connected to the inner positioning buckle. Both ends of the outer positioning buckle are provided with outer positioning slots, and both ends of the inner positioning buckle are provided with inner positioning slots. The two outer positioning slots are respectively matched with the outer sides of the two sets of steel bar positioning hoops, and the two inner positioning slots are respectively matched with the inner sides of the two sets of steel bar positioning hoops.

[0013] Preferably, the outer hoop of the rebar positioning hoop includes two first semicircular ring plates and two connecting plates, the ends of the two first semicircular ring plates are joined together and symmetrically distributed, and the two first semicircular ring plates are connected by the connecting plates; the inner hoop of the rebar positioning hoop includes two second semicircular ring plates and two connecting plates, the ends of the two second semicircular ring plates are joined together and symmetrically distributed, and the two second semicircular ring plates are connected by the connecting plates.

[0014] Preferably, both the second semicircular ring plate and the second semicircular ring plate are configured as metal sheet structures.

[0015] Preferably, the cross-sectional shape of the outer hoop positioning hole is U-shaped, and the cross-sectional shape of the inner hoop positioning hole is semi-elliptical, and the corresponding outer hoop positioning hole and inner hoop positioning hole form a limiting ring in the longitudinal direction.

[0016] Compared with the prior art, this utility model has the following advantages: By using multiple sets of positioning clips to position and combine two sets of inner and outer reinforcing bar positioning hoops, making them coaxially distributed and forming a stable docking device, it is possible to ensure that multiple straight threaded sleeves are located between the two sets of inner reinforcing bar positioning hoops and on the same horizontal plane, thereby improving the connection quality, ensuring the load-bearing capacity and stability of the reinforcing cage, and meeting the construction industry's demand for high-quality connections of large-diameter reinforcing cages. The evenly distributed limiting rings can facilitate the connection and installation of large-diameter reinforcing cages and improve the problem of poor coordination of straight threaded sleeves during connection.

[0017] By setting the outer and inner hoops of the rebar positioning hoops as a semi-circular ring plate combination structure, and detachably installing the positioning buckles between the inner and outer sides of the outer and inner hoops, the outer positioning buckles and their two ends are used to initially fix the upper and lower layers of the outer rebar positioning hoops. Similarly, the inner positioning buckles and their two ends are used to initially fix the upper and lower layers of the inner rebar positioning hoops. By tightening the positioning bolts that are movably set on the outer and inner positioning buckles, the outer and inner positioning buckles are brought closer to each other, effectively binding the two sets of inner and outer rebar positioning hoops. After the rebar cage is formed, it is easy to disassemble quickly, which greatly improves the on-site construction efficiency. The device can be recycled, reducing construction costs. Attached Figure Description

[0018] Figure 1 A three-dimensional view of the overall structure of the docking device provided by this utility model.

[0019] Figure 2 A schematic diagram of the combined structure of the docking device provided by this utility model and the large-diameter steel cage connected by a straight threaded sleeve.

[0020] Figure 3 This is a schematic diagram of a large-diameter steel cage structure using a straight threaded sleeve connection, provided for an embodiment of this utility model.

[0021] Figure 4 This is a perspective view of the outer hoop of the steel bar positioning hoop in this utility model.

[0022] Figure 5 This is a perspective view of the inner hoop of the steel bar positioning hoop in this utility model.

[0023] Figure 6 This is a schematic diagram showing the distribution structure of the inner hoop of the rebar positioning hoop and the straight threaded sleeve in this utility model.

[0024] Figure 7 This is a partial cross-sectional view of the butt-jointed steel bars in this utility model.

[0025] Figure 8 This is a schematic diagram of one embodiment of the positioning buckle in this utility model.

[0026] Marked in the image: Reinforcing bar positioning hoop outer hoop; 1-1, outer hoop positioning hole; 1-2, first semi-circular ring plate; 2-1 Inner hoop of the rebar positioning hoop; 2-2 Second semi-circular ring plate; Positioning buckle; 3-1, Positioning bolt; 3-2, External positioning buckle; 3-3, Internal positioning buckle; 3-4, External positioning groove; 3-5, Internal positioning groove; 5. Supporting reinforcing bars; 6. Straight threaded sleeve; 7. Connecting plate; 8. Upper layer reinforcing bars; 9. Lower layer reinforcing bars; 10. Stirrups. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can refer to a detachable connection: it can be a mechanical connection; it can also be an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1-8 The large-diameter steel cage straight thread sleeve docking device shown includes a steel bar positioning hoop outer hoop 1, a steel bar positioning hoop inner hoop 2 and a positioning buckle 3. The number of steel bar positioning hoop outer hoop 1 is set to two sets, and the two sets of steel bar positioning hoop outer hoop 1 are distributed in parallel. An outer hoop positioning hole 1-1 is opened on the inner side of the steel bar positioning hoop outer hoop 1. The number of inner hoop 2 of the rebar positioning hoop is set to two sets, and the two sets of inner hoop 2 of the rebar positioning hoop are distributed in parallel with the outer hoop 1 of the rebar positioning hoop and are set between the two sets of outer hoop 1 of the rebar positioning hoop. The inner hoop positioning hole 2-1 is opened on the outer side of the inner hoop 2 of the rebar positioning hoop. The positioning buckle 3 is used to position and combine two sets of outer reinforcing bar positioning hoops 1 and two sets of inner reinforcing bar positioning hoops 2, and the positioning buckle 3 can be detachably installed between the inner and outer sides of the outer reinforcing bar positioning hoops 1 and the inner reinforcing bar positioning hoops 2. Specifically, the cross-sectional shape of the outer hoop positioning hole 1-1 is set to U-shape, and the cross-sectional shape of the inner hoop positioning hole 2-1 is set to semi-elliptical shape. The corresponding outer hoop positioning hole 1-1 and inner hoop positioning hole 2-1 form a limiting ring in the longitudinal direction. The semi-elliptical shape of the outer hoop positioning hole 1-1 can prevent certain minor errors in the installation and positioning of the reinforcing bars, so as to facilitate the adjustment of the position of the reinforcing bars.

[0031] The number of positioning buckles 3 is at least two. In a preferred embodiment of the positioning buckles 3 in this application, the number of positioning buckles 3 is four, and the four positioning buckles 3 are arranged in a circular array. The positioning buckles 3 include a positioning bolt 3-1, an outer positioning buckle 3-2 and an inner positioning buckle 3-3. The positioning bolt 3-1 passes through the outer positioning buckle 3-2 and is rotatably connected to the through hole. The positioning bolt 3-1 is threadedly sleeved with the inner positioning buckle 3-3. Both ends of the outer positioning buckle 3-2 are provided with outer positioning slots 3-4, and both ends of the inner positioning buckle 3-3 are provided with inner positioning slots 3-5. The two outer positioning slots 3-4 are respectively matched with the outer sides of the two sets of reinforcing bar positioning hoops 1, and the two inner positioning slots 3-5 are respectively matched with the inner sides of the two sets of reinforcing bar positioning hoops 2. The distance between the positioning slots 3-5 at both ends of the same inner positioning buckle 3-3 is equal to the length of the straight thread sleeve 5; thus ensuring that all straight thread sleeves 5 are on the same horizontal plane during the tightening process of the upper reinforcing bar 7 and the lower reinforcing bar 8.

[0032] The docking device is equipped with supporting steel bars 4 and docking steel bars. The supporting steel bars 4 and docking steel bars are alternately distributed and embedded between the outer hoop 1 and the inner hoop 2 of the two sets of steel bar positioning hoops. The docking steel bars include a straight thread sleeve 5, an upper layer steel bar 7 and a lower layer steel bar 8. The straight thread sleeve 5 is located between the inner hoop 2 of the two sets of steel bar positioning hoops, and the upper layer steel bar 7 and the lower layer steel bar 8 are respectively threaded to both ends of the straight thread sleeve 5.

[0033] Specifically, in the above technical solution, the number of outer hoop positioning holes 1-1 and inner hoop positioning holes 2-1 is set to multiple, and the multiple outer hoop positioning holes 1-1 and the multiple inner hoop positioning holes 2-1 are arranged in a ring array, and the multiple outer hoop positioning holes 1-1 correspond one-to-one with the multiple inner hoop positioning holes 2-1.

[0034] Specifically, in the above technical solution, the inner diameters of the outer hoop 1 and the inner hoop 2 of the reinforcing bar positioning hoop are equal, and the outer diameter of the outer hoop 1 is larger than the inner diameter of the inner hoop 2, so that the multiple outer hoop positioning holes 1-1 and inner hoop positioning holes 2-1 distributed longitudinally are coaxially distributed.

[0035] Specifically, in the above technical solution, the number of supporting steel bars 4 and butt steel bars is equal to half the number of outer hoop positioning holes 1-1 on the outer hoop 1 of a steel bar positioning hoop, and the two ends of the ring structure formed by the multiple supporting steel bars 4 and butt steel bars are tied with hoop bars 9.

[0036] Specifically, in the above technical solution, the outer diameters of the supporting steel bar 4, the upper layer steel bar 7, and the lower layer steel bar 8 are equal, and are equal to the inner diameters of the outer hoop positioning hole 1-1 or the inner hoop positioning hole 2-1.

[0037] Specifically, in the above technical solution, the upper layer reinforcing bar 7 and the lower layer reinforcing bar 8 are respectively provided with positive and negative external threads, which means that the external threads at the ends of the upper layer reinforcing bar 7 and the lower layer reinforcing bar 8 are reversed; the inner ends of the straight thread sleeve 5 are respectively provided with positive and negative internal threads that match the positive and negative external threads at the ends of the upper layer reinforcing bar 7 and the lower layer reinforcing bar 8, which means that the inner threads on the inner side of the straight thread sleeve 5 are reversed with the middle as the boundary; refer to Figure 7 As shown, the lengths of the positive and negative external threads of the upper reinforcing bar 7 and the lower reinforcing bar 8 are set to half the total length of the straight thread sleeve 5.

[0038] Specifically, in the above technical solution, the outer hoop 1 of the rebar positioning hoop includes two first semicircular ring plates 1-2 and two connecting plates 6. The ends of the two first semicircular ring plates 1-2 are joined and symmetrically distributed, and the two first semicircular ring plates 1-2 are connected by the connecting plates 6. The inner hoop 2 of the rebar positioning hoop includes two second semicircular ring plates 2-2 and two connecting plates 6. The ends of the two second semicircular ring plates 2-2 are joined and symmetrically distributed, and the two second semicircular ring plates 2-2 are connected by the connecting plates 6.

[0039] Specifically, in the above technical solution, both the second semicircular ring plate 2-2 and the second semicircular ring plate 2-2 are set as metal sheet structures, which can provide stable support.

[0040] In use, this device first connects two first semi-circular ring plates 1-2 using two connecting plates 6, forming a set of annular lower-layer rebar positioning hoop outer hoop 1. Supporting rebar 4 and threaded lower-layer rebar 8 are then installed sequentially in an alternating pattern. A straight threaded sleeve 5 is connected to the top of the lower-layer rebar 8 and checked. Next, a set of rebar positioning hoop inner hoop 2 is installed at the bottom of the straight threaded sleeve 5. The two second semi-circular ring plates 2-2 are aligned with the bottom surface of the straight threaded sleeve 5, and the inner hoop positioning holes 2-1 are inserted one-to-one into the supporting rebar 4 and the lower-layer rebar 8. Then, the two connecting plates... 6. Connect the two second semi-circular ring plates 2-2 to form a set of annular inner hoop 2 for rebar positioning; then screw the upper layer rebar 7 into the top of the inner side of the straight thread sleeve 5, and further install a set of inner hoop 2 and a set of outer hoop 1 for rebar positioning in sequence above the straight thread sleeve 5, so that the two sets of inner hoop 2 and the two sets of outer hoop 1 are symmetrically distributed about the central cross-section of the straight thread sleeve 5. The multiple outer hoop positioning holes 1-1 and inner hoop positioning holes 2-1 form a limiting ring in the longitudinal direction, and the supporting rebar 4, the upper layer rebar 7 and the lower layer rebar 8 are all embedded in the corresponding limiting ring. Within the positioning circle; further utilize multiple sets of positioning clips 3 to combine the two sets of inner hoops 2 and outer hoops 1 of the rebar positioning hoops. Specifically, use the outer positioning clips 3-2 and their two ends of the outer positioning slots 3-4 to initially fix the upper and lower layers of rebar positioning hoops 1. Similarly, use the inner positioning clips 3-3 and their two ends of the inner positioning slots 3-5 to initially fix the upper and lower layers of rebar positioning hoops 2. Tighten the positioning bolts 3-1 that are movably set on the outer positioning clips 3-2 and the inner positioning clips 3-3 to bring the outer positioning clips 3-2 and the inner positioning clips 3-3 closer to each other, thus positioning the two sets of rebars. The inner hoop 2 and the two sets of outer hoop 1 for positioning the reinforcing bars are effectively restrained; after further installing all the positioning clips 3, the connection between the upper layer reinforcing bars 7 and the lower layer reinforcing bars 8 and the straight thread sleeve 5 is checked again, ensuring that the ends of the upper layer reinforcing bars 7 and the lower layer reinforcing bars 8 abut against each other after entering the straight thread sleeve 5, ensuring that the upper layer reinforcing bars 7 and the lower layer reinforcing bars 8 are tightly connected in the straight thread sleeve 5, forming butt reinforcing bars; finally, stirrups 9 are added to both ends of the multiple supporting reinforcing bars 4 and the butt reinforcing bars to form a tied reinforcing bar cage. After inspection and approval, the outer hoop 1, the inner hoop 2, and the positioning clips 3 of the reinforcing bar positioning hoop are removed, and finally, the reinforcing bars are arranged as follows. Figure 3 The pre-formed steel reinforcement cage shown is hoisted to the construction site and installed.

[0041] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solution of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A device for connecting a straight threaded sleeve to a large-diameter reinforcing steel cage, characterized in that, It includes an outer hoop (1), an inner hoop (2), a positioning buckle (3), a supporting steel bar (4), and a butt-jointed steel bar. The number of the outer hoop (1) and the inner hoop (2) are both set in two groups, and the two groups of outer hoops (1) are distributed in parallel. The outer hoop (1) has an outer hoop positioning hole (1-1) on its inner side. The two groups of inner hoops (2) are distributed in parallel with the outer hoops (1) and are set between the two groups of outer hoops (1). The inner hoop (2) has an inner hoop positioning hole (2-1) on its outer side. The positioning buckle (3) is used to position and combine two sets of outer reinforcing bar positioning hoops (1) and two sets of inner reinforcing bar positioning hoops (2), and the positioning buckle (3) can be detachably installed between the inner and outer sides of the outer reinforcing bar positioning hoops (1) and the inner reinforcing bar positioning hoops (2); The supporting steel bars (4) and the butt steel bars are alternately distributed and embedded between the outer hoop (1) and the inner hoop (2) of the two sets of steel bar positioning hoops. The butt steel bars include a straight thread sleeve (5), an upper steel bar (7) and a lower steel bar (8). The straight thread sleeve (5) is located between the inner hoop (2) of the two sets of steel bar positioning hoops, and the upper steel bar (7) and the lower steel bar (8) are respectively threaded to both ends of the straight thread sleeve (5).

2. The large-diameter steel cage straight thread sleeve docking device according to claim 1, characterized in that, The number of outer hoop positioning holes (1-1) and inner hoop positioning holes (2-1) is set to multiple. The multiple outer hoop positioning holes (1-1) and multiple inner hoop positioning holes (2-1) are arranged in a ring array, and the multiple outer hoop positioning holes (1-1) correspond one-to-one with the multiple inner hoop positioning holes (2-1).

3. The large-diameter steel cage straight thread sleeve docking device according to claim 2, characterized in that, The outer hoop (1) of the steel bar positioning hoop has the same inner diameter as the inner hoop (2) of the steel bar positioning hoop, and the outer diameter of the outer hoop (1) of the steel bar positioning hoop is larger than the inner diameter of the inner hoop (2) of the steel bar positioning hoop, so that the multiple outer hoop positioning holes (1-1) and inner hoop positioning holes (2-1) distributed longitudinally are coaxially distributed.

4. The large-diameter steel cage straight thread sleeve docking device according to claim 1, characterized in that, The number of the supporting steel bars (4) and the butt steel bars is equal to half the number of the outer hoop positioning holes (1-1) on the outer hoop of a steel bar positioning hoop (1). The ring structure formed by the multiple supporting steel bars (4) and the butt steel bars is surrounded and distributed, and the two ends are tied with hoop bars (9).

5. The large-diameter steel cage straight thread sleeve docking device according to claim 1, characterized in that, The outer diameters of the supporting steel bars (4), the upper steel bars (7), and the lower steel bars (8) are equal, and are equal to the inner diameters of the outer hoop positioning holes (1-1) or the inner hoop positioning holes (2-1).

6. The large-diameter steel cage straight threaded sleeve docking device according to claim 1, characterized in that, The upper reinforcing bar (7) and the lower reinforcing bar (8) are respectively provided with positive and negative external threads, and the inner ends of the straight thread sleeve (5) are respectively provided with positive and negative internal threads that match the positive and negative external threads at the ends of the upper reinforcing bar (7) and the lower reinforcing bar (8). The length of the positive and negative external threads of the upper reinforcing bar (7) and the lower reinforcing bar (8) is set to half the total length of the straight thread sleeve (5).

7. The large-diameter steel cage straight thread sleeve docking device according to claim 1, characterized in that, The number of the positioning buckles (3) is at least two, including a positioning bolt (3-1), an outer positioning buckle (3-2) and an inner positioning buckle (3-3). The positioning bolt (3-1) passes through the outer positioning buckle (3-2) and is rotatably connected to the through hole. The positioning bolt (3-1) is threadedly connected to the inner positioning buckle (3-3). Both ends of the outer positioning buckle (3-2) are provided with outer positioning slots (3-4), and both ends of the inner positioning buckle (3-3) are provided with inner positioning slots (3-5). The two outer positioning slots (3-4) are respectively matched with the outer side of the two sets of steel bar positioning hoops (1), and the two inner positioning slots (3-5) are respectively matched with the inner side of the two sets of steel bar positioning hoops (2).

8. The large-diameter steel cage straight thread sleeve docking device according to claim 1, characterized in that, The outer hoop (1) of the steel bar positioning hoop includes two first semi-circular ring plates (1-2) and two connecting plates (6). The ends of the two first semi-circular ring plates (1-2) are joined and symmetrically distributed, and the two first semi-circular ring plates (1-2) are connected by the connecting plates (6). The inner hoop (2) of the steel bar positioning hoop includes two second semi-circular ring plates (2-2) and two connecting plates (6). The ends of the two second semi-circular ring plates (2-2) are joined and symmetrically distributed, and the two second semi-circular ring plates (2-2) are connected by the connecting plates (6).

9. A large-diameter steel cage straight thread sleeve docking device according to claim 8, characterized in that, Both the second semicircular ring plate (2-2) and the second semicircular ring plate (2-2) are configured as metal sheet structures.

10. A large-diameter steel cage straight threaded sleeve docking device according to claim 1, characterized in that, The outer hoop positioning hole (1-1) has a U-shaped cross-section, and the inner hoop positioning hole (2-1) has a semi-elliptical cross-section. The corresponding outer hoop positioning hole (1-1) and inner hoop positioning hole (2-1) form a limiting ring in the longitudinal direction.

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