Construction method for conducting rapid butt joint of reinforcement cages through reinforcement cage butt joint device

Abstract

The invention relates to the technical field of pile construction, in particular to a construction method for conducting rapid butt joint of reinforcement cages through reinforcement cage butt joint devices, and relates to the technical field of pile construction. Each reinforcement cage butt joint device comprises a cylindrical shell, a locking sleeve and two sleeve pin shafts, a reinforcement cage is integrally machined and then segmented, and the reinforcement cage butt joint devices are installed on segmented reinforcement cage butt joint steel bars one by one; the two sleeve pin shafts are respectively in threaded connection with upper and lower sections of steel bars of the sectional reinforcement cage, the cylindrical shell and the locking sleeve are respectively sleeved on the two sleeve pin shafts, the cylindrical shell and the locking sleeve are in threaded connection, and mechanical butt joint of the upper and lower sections of steel bars of the sectional reinforcement cage is realized by screwing and tightening the cylindrical shell and the locking sleeve. Numbering the steel bars, and disassembling the steel bar cage butt joint device to segment the steel bar cage; when the reinforcement cage is installed, the reinforcement cage is hoisted section by section, and upper and lower sections of the reinforcement cage are in butt joint through the reinforcement cage butt joint device. When the method is adopted for butt joint construction, the problems of dislocation of reinforcement joints, overlarge gaps and the like during sectional hoisting of the reinforcement cage can be avoided, connection is convenient, and strength loss of the joints cannot be caused.

Description

Technical Field

[0001] The invention relates to the technical field of pile column construction, in particular to a construction method for quick docking of pile column reinforcement cages by segmented hoisting. Background Art

[0002] During the pile foundation construction process, when the pile foundation is deep, when the lifting height and lifting weight of the lifting equipment cannot meet the one-time lifting conditions, or the stiffness of the steel cage itself cannot meet the one-time lifting conditions, the steel cage is generally divided into two or more sections for lifting.

[0003] At present, the on-site splicing method of prefabricated steel cages is generally carried out by lap welding. However, the construction site conditions are poor, welding is difficult, the construction efficiency is low, there are many steel bar joints, and the welding time is difficult to control, which can easily lead to long joint processing time and cause pile foundation collapse.

[0004] If the sleeve connection process is adopted, the sleeves of all joints need to be tightened synchronously, which is extremely difficult to implement; and gaps will inevitably occur when the steel bars are butt-jointed, resulting in insufficient thread length, which affects the strength of the joint. At present, there are two conventional solutions: one is to use an extended sleeve for the sleeve, thread one end of the butt-jointed steel bar with a standard thread, and the thread length of the other end is the length of the extended sleeve. Before butt-jointing, all the sleeves are screwed onto the extended wire steel bar, and after butt-jointing, the sleeve is reversely tightened with the standard wire steel bar. In this method, the joints leak more than the specification allows, and the strength of the joints is lost; the other is to first roughen the joint at one end of the butt-jointed steel bar, then thread it, and screw the sleeve to the rough head. After butt-jointing, the sleeve is reversely tightened with the normal joint steel bar. This method has complex procedures and high requirements for the quality of the rough head. Summary of the invention

[0005] The invention aims to provide a construction method for quickly connecting steel cages using a steel cage connection device, which can avoid steel bar dislocation during connection construction, facilitate connection, and will not cause strength loss of the joint.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme:

[0007] The invention provides a construction method for quickly docking a steel cage by using a steel cage docking device, wherein the steel cage docking device comprises a sleeve pin, a cylindrical shell and a locking sleeve, two sleeve pins are provided, namely a first sleeve pin and a second sleeve pin, the sleeve pin comprises a pin head and a pin handle, one cylindrical shell and one locking sleeve are each provided, the first sleeve pin is threadedly connected to the upper steel bar of the corresponding segmented steel cage, the second sleeve pin is threadedly connected to the lower steel bar of the corresponding segmented steel cage, the pin heads of the first sleeve pin and the second sleeve pin are pressed together and tightly pressed, the locking sleeve is sleeved on the second sleeve pin, the cylindrical shell is sleeved on the first sleeve pin, and the locking sleeve is threadedly connected to the cylindrical shell.

[0008] The first sleeve pin shaft and the second sleeve pin shaft of the reinforcement cage docking device are consistent in structure and size.

[0009] The internal thread of the sleeve pin shaft of the reinforcement cage docking device matches the thread head of the reinforcement of the docked reinforcement cage.

[0010] The internal thread of the cylindrical shell of the reinforcement cage docking device matches the external thread of the locking sleeve.

[0011] The pin head of the sleeve pin of the steel cage docking device is a cylindrical head, the length of the pin handle is half the length of the straight thread sleeve of the connected steel bar, and a threaded hole matching the diameter of the steel bar of the steel cage is provided inside the pin handle, and the thread in the threaded hole is a straight thread.

[0012] The locking sleeve of the steel cage docking device includes a locking sleeve body and a limiting step. An inner hole is provided in the locking sleeve body, which is a through-length smooth round hole. The diameter of the inner hole is slightly larger than the outer diameter of the pin shaft handle of the second sleeve pin shaft. An external thread is provided on the outer wall of the locking sleeve body, and the thread length = straight thread sleeve length / 2+5mm. A limiting step is provided at one end of the outer wall of the locking sleeve body. The shape of the limiting step is a hexagonal polygonal prism or an anti-slip shape formed based on cutting a cylinder. The other end of the limiting step is a locking sleeve socket.

[0013] The cylindrical shell of the steel cage docking device comprises a cylindrical shell body and an end stop plate. The outer wall of the cylindrical shell body is engraved with anti-slip diagonal lines. An inner hole is provided in the cylindrical shell body. The diameter of the inner hole is slightly larger than the diameter of the pin head of the first sleeve pin. The inner side section of the inner hole is a smooth hole wall. The depth H 1 It is twice the thickness of the pin head of the sleeve pin. The outer section of the inner hole is the inner thread hole wall. The depth H 2 = length of straight thread sleeve / 2 + 5mm; a locking circular hole is provided on the threaded section of the cylindrical shell, and a screw is inserted into the hole for locking; an end stop plate is provided at one end of the cylindrical shell body, and a cylindrical hole is opened in the center of the end stop plate, and its hole diameter is slightly larger than the diameter of the pin shaft shank of the first sleeve pin shaft; the other end of the cylindrical shell is a cylindrical shell socket.

[0014] The construction method for fast docking of steel cages using a steel cage docking device comprises the following steps:

[0015] S1: The prefabrication yard processes the steel cage, and uses the steel cage docking device to replace the steel sleeve at the steel cage section to process the steel cage into a whole.

[0016] S2: Number the steel bars at the steel cage sections, disassemble the steel cage docking device, and divide the steel cage into sections.

[0017] S3: Lower steel cage, the upper and lower sections of the steel cage are connected.

[0018] S4: Use the steel cage docking device to reconnect the upper and lower main bars of the steel cage firmly.

[0019] S5: Re-tie the annular reinforcement in the joint area of ​​the reinforcement cage to the main reinforcement.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The locking sleeve and the cylindrical housing of the present invention are respectively put on the butted steel cages in advance. When the steel cages are butted, the butted steel bars can be mechanically connected and reinforced one by one, and the operation is simple.

[0022] 2. The present invention is connected by tightening the sleeve pin through the cylindrical shell, so that no steel bar thread head is left exposed, thus avoiding the strength loss of the steel cage steel bar butt joint.

[0023] 3. The two sleeve pins of the present invention are slidably connected to the cylindrical housing and can rotate and slide freely. Compared with threaded connection, there is no difficulty in screwing due to deviation and misalignment of the docking.

[0024] 4. The steel cage docking device in the present invention can directly replace the sleeve and be used at the steel cage segmentation. The steel cage can be directly processed into a whole without the need to process the steel cage segmentation and without the need to use steel bar positioning auxiliary tools.

[0025] 5. The steel cage processed by the steel cage docking device of the present invention can be quickly divided into two or more sections by unscrewing the locking sleeve and the cylindrical shell of the steel cage docking device at the sectioning position.

[0026] 6. The locking sleeve and the threaded length of the cylindrical shell of the reinforcement cage docking device of the present invention have a margin, which can solve the problem that when the reinforcement cage is slightly deformed during the lifting process, the joint gap will not affect the threaded length and will not cause loss of joint strength.

[0027] 7. The present invention divides the steel cage into sections by first processing the steel cage as a whole and then disassembling the steel cage docking device, thereby avoiding problems such as misalignment of steel bar joints and excessive gaps when the steel cage is hoisted in sections.

[0028] 8. The present invention has the characteristics of being reproducible in installation and disassembly, and can be directly used for the overall processing of the steel cage, and can be disassembled and installed in sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the assembly structure of the reinforcement cage docking device in the present invention;

[0030] Figure 2 It is an axial cross-sectional view of the first sleeve pin of the reinforcement cage docking device of the present invention;

[0031] Figure 3It is an axial cross-sectional view of the second sleeve pin of the reinforcement cage docking device of the present invention;

[0032] Figure 4 It is an axial cross-sectional view of the cylindrical housing of the reinforcement cage docking device of the present invention;

[0033] Figure 5 It is an axial cross-sectional view of a locking sleeve of the reinforcement cage docking device in the present invention;

[0034] Figure 6 It is a schematic cross-sectional diagram of the assembly of the components of the reinforcement cage docking device of the present invention and the reinforcement of the reinforcement cage;

[0035] Figure 7 A schematic cross-sectional view of the steel bar butt jointing positioning of a steel bar cage assembled with the steel bar cage butt jointing device of the present invention;

[0036] Figure 8 It is a schematic diagram of the connection and reinforcement section of the steel bars of the steel cage after being butted and positioned using the steel cage butt joint device of the present invention;

[0037] Figure 9-13 The present invention is a schematic diagram of the construction method for quickly connecting steel cages using the steel cage connection device of the present invention.

[0038] Reference numerals in the figures:

[0039] 1a-first sleeve pin, 1b-second sleeve pin, 2-locking sleeve, 3-cylindrical housing, 4a-upper section steel bar, 4b-lower section steel bar.

[0040] 11-pin head, 12-pin handle, 13-threaded hole.

[0041] 21-inner hole, 22-external thread, 23-limiting step, 24-locking sleeve socket.

[0042] 31-outer wall, 32-end limit plate, 33-cylindrical hole, 34-smooth hole wall, 35-internal threaded hole wall, 36-locking circular hole, 37-cylindrical shell socket.

[0043] 41-Thread head. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0045] See also Figure 1-Figure 8The present invention provides a construction method for fast docking of a steel cage using a steel cage docking device, wherein the steel cage docking device includes a sleeve pin, a locking sleeve 2 and a cylindrical housing 3, and each component is made of high-strength stainless steel. There are two sleeve pins, namely a first sleeve pin 1a and a second sleeve pin 1b, and the two sleeve pins have the same structure and size. The sleeve pin includes a pin head 11 and a pin handle 12, the pin head 11 is a cylindrical head, the length of the pin handle 12 is half the length of the straight thread sleeve, and a threaded hole 13 matching the diameter of the steel bar of the steel cage is provided inside the pin handle 12, and the thread in the threaded hole 13 is a straight thread. The locking sleeve 2 is provided with one, the locking sleeve 2 includes a locking sleeve body and a limiting step 23. The locking sleeve body is provided with an inner hole 21, which is a through-length smooth circular hole, and the diameter of the inner hole 21 is slightly larger than the outer diameter of the pin shaft shank 12 of the second sleeve pin shaft 1b. The outer wall of the locking sleeve body is provided with an external thread 22, and the thread length = the length of the straight thread sleeve / 2+5mm. A limiting step 23 is provided at one end of the outer wall of the locking sleeve body, and the shape of the limiting step 23 is a hexagonal polygonal prism or an anti-slip shape formed based on the cutting of a cylinder, and the other end of the limiting step 23 is a locking sleeve socket 24. The cylindrical shell 3 is provided with one, the cylindrical shell 3 includes a cylindrical shell body and an end limiting plate 32, and the outer wall 31 of the cylindrical shell body is engraved with anti-slip diagonal lines, and the cylindrical shell body is provided with an inner hole, and the inner hole diameter is slightly larger than the diameter of the pin shaft head 11 of the first sleeve pin shaft 1a, and the inner section of the inner hole is a smooth hole wall 34, and the depth H 1 =2t, t is the thickness of the sleeve pin shaft head 11, the outer section of the inner hole is the inner thread hole wall 35, the depth H 2=straight thread sleeve length / 2+5mm; the threaded section of the cylindrical shell 3 is provided with a locking circular hole 36, and a screw is inserted into the hole for locking; an end stop plate 32 is provided at one end of the cylindrical shell body, and a cylindrical hole 33 is opened in the center of the end stop plate 32, and its hole diameter is slightly larger than the diameter of the pin shaft handle 12 of the first sleeve pin shaft 1a; the other end of the cylindrical shell 3 is a cylindrical shell socket 37. When in use, the first sleeve pin 1a is threadedly connected to the upper steel bar 4a of the corresponding segmented steel cage, the second sleeve pin 1b is threadedly connected to the lower steel bar 4b of the corresponding segmented steel cage, the internal thread of the sleeve pin matches the thread head 41 of the steel bar of the docked steel cage, the internal thread of the sleeve pin is screwed together with the thread head 41 of the docked steel bar, and the two form a sleeve connection; the locking sleeve 2 is sleeved on the second sleeve pin 1b, and the cylindrical shell 3 is sleeved on the first sleeve pin 1a; the locking sleeve 2 is threadedly connected to the cylindrical shell 3, the internal thread of the cylindrical shell 3 matches the external thread 22 of the locking sleeve 2, and the internal thread of the cylindrical shell 3 matches the external thread of the locking sleeve 2 The two are screwed together to form a closed limiting shell for fixing the first sleeve pin 1a and the second sleeve pin 1b; the pin heads 11 of the first sleeve pin 1a and the second sleeve pin 1b are pressed together, and the first sleeve pin 1a and the second sleeve pin 1b are pulled by the locking sleeve 2 and the cylindrical shell 3 respectively, and the upper and lower sections of the steel bars 4a and 4b that are connected are aligned and pressed together by the sleeve pins on the outside, and the first sleeve pin 1a and the second sleeve pin 1b are locked and fixed by screwing the locking sleeve 2 and the cylindrical shell 3, so as to achieve mechanical connection between the upper and lower sections of the steel bars 4a and 4b of the steel cage, and avoid longitudinal and lateral misalignment of the connected steel bars. The straight thread and the length of the straight thread sleeve meet the requirements of JG / T163 "Sleeves for Mechanical Connection of Steel Bars".

[0046] Combination Figure 9-13 The construction method of using the steel cage docking device for fast docking of steel cages is to first use the steel cage docking device to replace the steel sleeves at the segmented parts, process the steel cage as a whole, then disassemble the steel cage into two or more sections for hoisting, and use the steel cage docking device to reconnect the steel cage into a whole. The specific implementation steps are as follows:

[0047] S1: Process the main reinforcement of the steel cage in sections and make the steel cage as a whole. First, determine the location of the steel cage sections on the CAD drawing, and cut the main reinforcement according to the sections; in the prefabrication plant, make the steel cage as a whole, and use the steel cage docking device to mechanically connect the main reinforcements on both sides of the steel cage section position: the first step is to first insert the cylindrical shell 3 into the corresponding upper section steel bar 4a, then insert the first sleeve pin 1a into the thread head 41 of the upper section steel bar 4a, and then rotate the first sleeve pin 1a until the thread head 41 is against the end face of the first sleeve pin 1a, and tighten it; similarly, first insert the locking sleeve 2 into the lower section steel bar 4b, then insert the second sleeve pin 1b into the thread head 41 of the lower section steel bar 4b, and then rotate the second sleeve pin 1b until the thread head 41 is against the end face of the second sleeve pin 1b, and tighten it. The second step is to dock the assembly formed in the first step, and the pin heads 11 of the first sleeve pin 1a and the second sleeve pin 1b are tightly pressed and there is no misalignment. The third step is to first press the end face of the locking sleeve socket 24 of the locking sleeve 2 against the pin head 11 of the second sleeve pin 1b, then insert the cylindrical shell 3 into the external thread 22 of the locking sleeve 2, rotate the cylindrical shell 3 to make the internal thread of the internal thread hole wall 35 of the cylindrical shell 3 screwed with the external thread 22 of the locking sleeve 2, until the end stop plate 32 of the cylindrical shell 3 and the pin head 11 of the first sleeve pin 1a are locked, then tighten, and screw the screw into the locking circular hole 36 on the cylindrical shell 3 to lock it; the main bars on both sides of the steel cage segment position are connected one by one using the steel cage docking device, and then the main bars are fixed on the positioning steel bars, and then the annular stirrups are tied, see attached Fig. 9 .

[0048] S2: Disassemble the steel cage joint device and divide the steel cage into sections. Select at least two main bars as positioning main bars at the steel cage section, number them, and tie the number plates to the main bars with wire; then disassemble the spiral stirrups and temporarily fix them outside the joint area, disassemble the steel cage joint device, unscrew the locking sleeve 2 and the cylindrical shell 3 of the steel cage joint device to disconnect the connection, and divide the steel cage into two sections. See the attached Fig.10 .

[0049] S3: Lift the steel cage in sections and connect the upper and lower sections. First lower the first section of the steel cage and fix it on the platform of the pile hole, then lower the second section of the steel cage, align the main bars with the same number on the upper and lower sections of the steel cage and tighten them, and temporarily fix them manually. See the attached Fig.11 .

[0050] S4: Use the reinforcement cage docking device to reconnect the upper and lower main bars firmly. Tighten the locking sleeve 2 on the positioning main bar with the second sleeve pin, then screw the cylindrical shell 3 into the locking sleeve 2 until it is firmly seated, and then tighten it. Similarly, adjust the alignment of other main bars, and tighten the locking sleeve 2 and cylindrical shell 3, see the attached Fig.12The main bars on both sides of the steel cage segmented position are reconnected one by one using the steel cage docking device. After all the main bars of the steel cage are reconnected, the screws are inserted into the locking holes 36 of the cylindrical shell 3 and locked. At this time, the steel cage docking device cannot be disassembled again.

[0051] S5: Tie the hoop reinforcement of the steel cage. Redistribute the hoop reinforcement in the joint area of ​​the steel cage according to the standard spacing and tie it firmly with the main reinforcement. Fig.13 .

[0052] When the steel cage is bent due to lifting and some main bars are misplaced when the upper and lower sections are connected, auxiliary tools are used to align the misplaced main bars and ensure that the gap between the main bars is less than 5mm, and then the upper and lower main bars are connected using the steel cage connection device.

Claims

1. A construction method for quickly connecting a steel cage using a steel cage connection device, characterized in that The reinforcement cage docking device comprises a sleeve pin shaft, a locking sleeve (2) and a cylindrical shell (3); two sleeve pin shafts are provided, namely a first sleeve pin shaft (1a) and a second sleeve pin shaft (1b), and the sleeve pin shaft comprises a pin shaft head (11) and a pin shaft handle (12); one locking sleeve (2) and one cylindrical shell (3) are provided respectively, the first sleeve pin shaft (1a) is threadedly connected to the upper section reinforcement (4a) of the corresponding segmented reinforcement cage, the second sleeve pin shaft (1b) is threadedly connected to the lower section reinforcement (4b) of the corresponding segmented reinforcement cage, the pin shaft heads (11) of the first sleeve pin shaft (1a) and the second sleeve pin shaft (1b) are pressed against each other, the locking sleeve (2) is sleeved on the second sleeve pin shaft (1b), the cylindrical shell (3) is sleeved on the first sleeve pin shaft (1a), and the locking sleeve (2) and the cylindrical shell (3) are threadedly connected. The locking sleeve (2) comprises a locking sleeve body and a limiting step (23). An inner hole (21) is provided in the locking sleeve body. An outer wall of the locking sleeve body is provided with an external thread (22). A limiting step (23) is provided at one end of the outer wall of the locking sleeve body. The other end of the limiting step (23) is a locking sleeve socket (24). The cylindrical shell (3) comprises a cylindrical shell body and an end limiting plate (32). An inner hole is provided in the cylindrical shell body. The inner side section of the inner hole is a smooth hole wall (34). The outer side section of the inner hole is an internal threaded hole wall (35). A locking circular hole (36) is provided in the threaded section of the cylindrical shell (3). The hole is locked by a screw. An end limiting plate (32) is provided at one end of the cylindrical shell body. A cylindrical hole (33) is opened in the center of the end limiting plate (32). The other end of the cylindrical shell (3) is a cylindrical shell socket (37). The construction method of using the steel cage docking device for fast docking of steel cages is to first use the steel cage docking device to replace the steel sleeve at the segment, process the steel cage as a whole, and then disassemble the steel cage into two or more sections for hoisting. After the segment hoisting, the steel cage is reconnected into a whole using the steel cage docking device, which specifically includes the following steps: S1: The steel cage is processed in the prefabrication yard and divided into sections; the steel cage is connected at the sections by a steel cage docking device to process the steel cage into a whole. In the first step, the cylindrical shell (3) is inserted into the corresponding upper section steel bar (4a), and then the first sleeve pin (1a) is inserted into the thread head (41) of the upper section steel bar (4a), and then the first sleeve pin (1a) is rotated until the thread head (41) abuts against the end face of the first sleeve pin (1a), and then tightened; similarly, the locking sleeve (2) is first inserted into the lower section steel bar (4b), and then the second sleeve pin (1b) is inserted into the thread head (41) of the lower section steel bar (4b), and then the second sleeve pin (1b) is rotated until the thread head (41) abuts against the end face of the second sleeve pin (1b), and then tightened; in the second step, the assembly formed in the first step is docked. The pin heads (11) of the first sleeve pin (1a) and the second sleeve pin (1b) are tightly pressed against each other without misalignment; in the third step, the end face of the locking sleeve socket (24) of the locking sleeve (2) is pressed against the pin head (11) of the second sleeve pin (1b), and then the cylindrical housing (3) is inserted into the external thread (22) of the locking sleeve (2), and the cylindrical housing (3) is rotated to make the internal thread of the internal thread hole wall (35) of the cylindrical housing (3) screwed with the external thread (22) of the locking sleeve (2) until the end stop plate (32) of the cylindrical housing (3) and the pin head (11) of the first sleeve pin (1a) are pressed against each other, and then tightened, and the screw is screwed into the locking circular hole (36) on the cylindrical housing (3) to lock it; the main reinforcements on both sides of the segmented position of the reinforcement cage are installed with the reinforcement cage docking device one by one; S2: at least two main bars are selected as positioning main bars at the steel cage sections, numbered, and the number plates are tied to the main bars with wires; then the spiral stirrups are disassembled and temporarily fixed outside the docking area, the steel cage docking device is disassembled, and the locking sleeve (2) and the cylindrical shell (3) of the steel cage docking device are unscrewed to disconnect the connection, thereby dividing the steel cage into two sections; S3: After the steel cage is hoisted in sections, the upper and lower steel cages are connected. The first steel cage is lowered first and fixed on the platform of the pile hole. Then the second steel cage is lowered. The positioning main bars with the same number of the upper and lower steel cages are aligned and tightened, and temporarily fixed manually. S4: Use the steel cage docking device to reconnect the upper and lower main bars of the steel cage firmly, press the locking sleeve (2) on the steel cage positioning main bar against the second sleeve pin (1b), then screw the cylindrical shell (3) into the locking sleeve (2) until it is firmly seated, and then tighten it. Similarly, adjust the alignment of other main bars, and tighten the locking sleeve (2) and the cylindrical shell (3); S5: Re-tie the annular reinforcement in the joint area of ​​the reinforcement cage to the main reinforcement.

2. A construction method for rapid connection of steel cages using a steel cage connection device according to claim 1, characterized in that: The first sleeve pin shaft (1a) and the second sleeve pin shaft (1b) of the reinforcement cage docking device are consistent in structure and size.

3. A construction method for rapid connection of steel cages using a steel cage connection device according to claim 1, characterized in that: The internal thread of the sleeve pin of the reinforcement cage docking device matches the thread head (41) of the reinforcement of the docked reinforcement cage.

4. A construction method for rapid connection of steel cages using a steel cage connection device according to claim 1, characterized in that: The internal thread of the cylindrical housing (3) of the reinforcement cage docking device matches the external thread (22) of the locking sleeve (2).

5. A construction method for rapid connection of steel cages using a steel cage connection device according to claim 1, characterized in that: The pin head (11) of the sleeve pin of the reinforcement cage docking device is a cylindrical head, the length of the pin handle (12) is half the length of the straight thread sleeve, and a threaded hole (13) matching the diameter of the reinforcement cage is arranged inside the pin handle (12), and the thread in the threaded hole (13) is a straight thread.

6. A construction method for rapid connection of steel cages using a steel cage connection device according to claim 1, characterized in that: The inner hole (21) arranged in the locking sleeve body of the locking sleeve (2) of the reinforcement cage docking device is a through-length smooth circular hole, and the diameter of the inner hole (21) is slightly larger than the outer diameter of the pin shaft handle (12) of the second sleeve pin shaft (1b); the thread length of the external thread (22) arranged on the outer wall of the locking sleeve body is equal to the straight thread sleeve length / 2+5mm; the limiting step (23) arranged at one end of the outer wall of the locking sleeve body has an outer shape of a hexagonal polygonal prism or an anti-slip shape formed by cutting a cylinder.

7. A construction method for rapid connection of steel cages using a steel cage connection device according to claim 1, characterized in that: The outer wall (31) of the cylindrical shell body of the cylindrical shell (3) of the steel cage docking device is engraved with anti-slip diagonal lines, the diameter of the inner hole arranged in the cylindrical shell body is slightly larger than the diameter of the pin head (11) of the first sleeve pin (1a), the depth H1 of the smooth hole wall (34) of the inner section of the inner hole is twice the thickness of the pin head (11) of the sleeve pin, and the depth H2 of the internal threaded hole wall (35) of the outer section of the inner hole is equal to the length of the straight threaded sleeve / 2+5mm; the diameter of the cylindrical hole (33) opened in the center of the end stop plate (32) arranged at one end of the cylindrical shell body is slightly larger than the diameter of the pin shank (12) of the first sleeve pin (1a).

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