A rapid closing device for column steel bar cages

Abstract

The present invention relates to the field of construction, and discloses a device for quickly closing a column steel reinforcement cage, which includes a first sleeve and a second sleeve. One ends of the first sleeve and the second sleeve are respectively provided with internal threads, and the other ends can be fixedly connected through butt joint and insertion. The device for quickly closing the column steel reinforcement cage of the present invention is convenient to install, has a quick butt joint, and the butt joint device can achieve self-locking. By adopting the closing device of the present invention, high-altitude operation of column steel bars is avoided, the labor intensity is reduced, and the construction period is shortened.

Description

Technical Field

[0001] The invention relates to the field of construction, in particular to the field of column reinforcement construction, and specifically refers to a connection device for connecting column reinforcement cages. Background Art

[0002] Nowadays, the construction industry is short of labor due to outdoor work. During the construction of steel-concrete structures, the construction of column reinforcement projects requires the establishment of an operating platform for high-altitude operations. Workers tie or sleeve long steel bars one by one on the operating platform. The process is cumbersome, takes a long time, and is labor-intensive.

[0003] In Chinese patent application 202210457188.7, a mechanical connection device for steel bars is disclosed, which is to respectively set a connection head at one end of the connection of two steel bars, and thread the connection heads to achieve the butt connection of the steel bars. This steel bar connection device is only suitable for butt connection of a single steel bar, and when the steel bars are connected, the threaded connection piece of one steel bar needs to be rotated to achieve the threaded connection.

[0004] During the column reinforcement construction process, after the construction of the lower section of the column reinforcement and the foundation is completed, each steel bar in the steel cage of the upper section of the column reinforcement needs to be connected with each steel bar in the column reinforcement cage of the lower section. If the connecting device disclosed in patent application 202210457188.7 is used, it is also necessary to build an operating platform for high-altitude reinforcement binding operations. First, the connecting device of each steel bar is rotated and connected, and then the column reinforcement is tied. Compared with relying entirely on manual labor, the construction process can save some manpower. However, for the overall construction of the column reinforcement, it is still relatively cumbersome, the construction period is still relatively long, and the labor intensity is still relatively high. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a column reinforcement fast closing device, which does not require high-altitude binding of column reinforcements, and quickly realizes the fast closing and docking of upper and lower column reinforcement cages, shortens the column reinforcement construction period, avoids the high-altitude binding of column reinforcements, and reduces labor intensity.

[0006] To solve the above technical problems, the technical solution provided by the present invention is a column reinforcement cage rapid closing device, comprising a first sleeve and a second sleeve, wherein one end of the first sleeve and the second sleeve are respectively provided with an internal thread, and the other end can be fixedly connected by butt plugging.

[0007] Preferably, the first sleeve and the second sleeve have the same structure; a latch is protrudingly provided at one end of the first sleeve and the second sleeve that can be plugged in and docked, and the latch is provided with an arcuate surface; an arcuate disk that can be displaced along the arcuate surface is provided in the sleeve; when the two first sleeves and the second sleeve are docked, the two latches can be inserted into the sleeves opposite to them, and the two arcuate disks are respectively located in the self-locking cavities formed by the arcuate surfaces of the two latches.

[0008] Preferably, a pull rod is fixedly connected to the arc-shaped disc, and the pull rod is fixed on the inner wall of the sleeve through a spring.

[0009] Preferably, a space for the insertion pin to insert is reserved between the insertion pin and the inner wall of the sleeve; the spring is fixedly arranged on the inner wall of the sleeve on one side of the space for the insertion pin to insert; one end of the arc-shaped disc is attached to the arc-shaped surface of the insertion pin.

[0010] Preferably, the arc-shaped disc is a semi-elliptical structure. When the two sleeves are butted, the two arc-shaped discs are butted to form an ellipse within the self-locking cavity formed by the arc-shaped surfaces of the two insertion pins.

[0011] Preferably, the insertion pin protrudes outward from the inner wall side of the sleeve, and the insertion pin is a bent structure.

[0012] Preferably, one end of the sleeve with internal threads is a straight cylinder structure, and the other end is a flared structure.

[0013] Preferably, at least two locking mechanisms are evenly arranged in a circle along the circumferential direction of the first sleeve, and the locking mechanisms can stretch through the wall of the first sleeve; limiting holes for the locking mechanisms to pass through are provided at positions of the second sleeve corresponding to the locking mechanisms; when the first sleeve and the second sleeve are inserted and butted, the locking tongue mechanism is inserted into the limiting holes.

[0014] Preferably, the locking mechanism includes a limiting groove horizontally arranged on the outer peripheral wall of the first sleeve, and a locking tongue that can slide along the limiting groove is arranged in the limiting groove; the locking tongue is fixed in the limiting groove through a spring; the locking tongue has an arc-shaped surface; in the initial position, part of the locking tongue extends into the first sleeve.

[0015] Preferably, along the length direction of the first sleeve, at least two circles of locking tongue mechanisms can be arranged at intervals; the locking tongue mechanisms in different circles are arranged in a staggered manner; the limiting holes of the second sleeve corresponding to the locking tongue mechanisms are arranged in a staggered manner.

[0016] Preferably, the cross-section of the limiting hole is a flared structure.

[0017] The column steel cage rapid closing device of the present invention is convenient to install, fast in docking, and the docking device can achieve self-locking. By using the closing device of the present invention, high-altitude operation of the column steel cage is avoided, the labor intensity is reduced, and the construction period is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the external structure of the closed device after docking in Embodiment 1.

[0019] Figure 2 is a schematic cross-sectional view of the sleeve in Embodiment 1.

[0020] Figure 3 It is a schematic cross-sectional structure diagram of the closing device after docking in Embodiment 1.

[0021] Figure 4 It is a schematic structural diagram of the first sleeve and the second sleeve in Embodiment 2.

[0022] Figure 5 It is a schematic cross-sectional view of the second sleeve in Embodiment 2.

[0023] Among them: Embodiment 1: the first sleeve 10, the straight barrel structure 20, the flared structure 30, the bolt 31, the arc surface 311, the spring 32, the connecting rod 33, the arc disk 34. Embodiment 2: the first sleeve 40, one end 41 connected to the connecting end of the column steel bar, the docking part 42, the limiting groove 421, the locking tongue 422, the spring 423, the second sleeve 50, one end 51 connected to the connecting end of the column steel bar, the docking part 52, the limiting hole 521. Specific implementation manners

[0024] In view of the above technical solutions, preferred embodiments are now given and specifically described in conjunction with the drawings. The following descriptions involving orientation qualifiers such as up, down, left, right, front, and back are only for convenience of understanding and do not serve as limitations on the position.

[0025] Embodiment 1

[0026] The column steel cage rapid closing device of the present invention, see Figures 1 to 3 , includes two first sleeves 10 that can be docked, and the two first sleeves 10 have exactly the same structure. The material of the first sleeve 10 is steel. One end of it is a straight barrel structure 20, and the other end is a flared structure 30. An internal thread is provided at one end of the straight barrel structure 20, and an external thread is provided at one end of the butt-jointed steel bar. One end of the straight barrel structure of the sleeve structure can be sleeved and fixed on the steel bar through the thread structure.

[0027] At one end of the trumpet-shaped structure 30, a latch 31 is provided protruding outward along the inner wall of the sleeve. A space for the latch 31 to be inserted is reserved between the latch 31 and the inner wall of the other side of the sleeve. An arc surface 311 is provided on the side of the latch 31 close to the center of the sleeve. A spring 32 is fixedly provided on the inner wall of the trumpet-shaped structure. A connecting rod 33 is connected to the other end of the spring, and the center position of the arc disk 34 is fixedly connected to the other end of the connecting rod. In the initial position, that is, when the sleeve is not docked, the spring 32 is in a relaxed state. Since the spring has a certain strength, although the connecting rod and the arc disk have a certain dead weight, the spring 32 has sufficient strength to support the connecting rod and the arc disk. The arc disk 34 includes an arc surface located on one side of the straight tube structure 20, which is located on the plane of one side of the latch. One end of the arc surface of the arc disk 34 is attached to the arc surface of the latch 31. When the arc disk is subjected to external force, the arc surface of the arc disk can move along the arc surface 311 of the latch. The arc-shaped disc structures on both sides of the connecting rod 33 are symmetrical, and the arcs of the arc-shaped surfaces are the same. In this embodiment, the latch 31 is a hollow bending structure. Such a structure can reduce the weight of the sleeve.

[0028] When the two sleeves are docked, the latches of the two sleeves are located on opposite sides respectively, and the latches of the two sleeves are inserted from the space of the trumpet-shaped structure port of the sleeve opposite to it. During the insertion process, the inserted latch contacts the arc disk in the sleeve opposite to it, forcing the arc disk to rotate along the arc surface of the latch in the same sleeve, and the spring changes from a relaxed state to a stretched state during the insertion process. As the latch continues to be inserted, when the arc disk rotates to a certain angle, the other end of the arc disk enters the arc surface of the inserted latch, and the latch loses its resistance. Then the arc disk returns to its original position under the action of the spring elastic force, and the arc disk is located in the self-locking cavity formed between the two latches, and the two ends of the arc surface of the arc disk are respectively fitted with the arc surfaces of the two opposite latches. After the two sleeves are docked, the arc disks in the two sleeves are opposite to each other and are located in the self-locking cavity formed by the two latches. Under the action of the self-locking cavity and the spring 32, the two sleeves can be prevented from separating from each other.

[0029] During the construction of column reinforcement, the column reinforcement cage is divided into two sections, and external threads are respectively provided at the ends of the upper and lower sections of reinforcement that need to be butted. After the binding of the lower section of the column reinforcement cage is completed, the first sleeve 10 is put on the upper end of each reinforcement, and the pins on the first sleeve 10 are adjusted to face the same direction. The upper section of the column reinforcement cage is tied by workers on the ground. After the binding is completed, the first sleeve 10 is put on the end that is butted with the lower section of the reinforcement cage, so that the pins on the first sleeve 10 are set in the opposite direction to the pins on the sleeve of the lower section of the reinforcement cage. Then, the upper end of the column reinforcement cage is hoisted as a whole by the hoisting equipment, so that it is vertically aligned with the lower section of the reinforcement cage that needs to be butted, and then butted. Under the action of gravity, the sleeves of the upper and lower reinforcement cages are butt-connected to complete the closing of the column reinforcement. Then, formwork support and concrete pouring are performed to complete the overall construction of the column.

[0030] Through the rapid closing device for column steel reinforcement cages of the present invention, the upper and lower sections of the column steel reinforcement cage can be quickly docked, avoiding the high-altitude operation of workers during the construction of the upper section of the steel reinforcement cage and the support of the scaffolding during high-altitude operation, reducing the labor intensity of construction personnel, shortening the construction period, reducing the construction cost, and improving the construction safety at the same time.

[0031] Embodiment 2

[0032] In this embodiment, the two sleeve structures are completely different. It includes a first sleeve 40 and a second sleeve 50 that can be inserted and docked.

[0033] The first sleeve 40 includes an end 41 connected to the column steel bar connection end and a docking portion 42 inserted and docked with the second sleeve. The end 41 connected to the column steel bar connection end is of a straight cylinder structure, and its inner wall is provided with internal threads and can be threadedly connected to the column steel bar connection end.

[0034] The docking portion 42 is of a cylindrical structure, and its outer diameter is larger than the outer diameter of the end 41 connected to the column steel bar connection end. One end of the docking portion 42 docked with the second sleeve 50 is set as a flared structure. Along the circumferential direction of the outer peripheral wall of the docking portion 42, at least two locking mechanisms are evenly arranged. Generally, three locking mechanisms are adopted. The locking mechanism includes a limiting groove 421 horizontally and fixedly arranged on the outer peripheral wall of the docking portion 42, and a through hole is opened on the first sleeve wall where the limiting groove 421 is provided. The locking tongue 422 is fixed in the limiting groove 421 through a spring 423, and the limiting groove 421 ensures that the locking tongue 422 makes a linear expansion and contraction. When the spring 423 is in a relaxed state, the locking tongue 422 passes through the through hole opened on the first sleeve wall and partially extends into the hollow inner cavity of the first sleeve. An arc surface 4221 is provided on the locking tongue 422, and the arc surface of the locking tongue located inside the first sleeve faces one end of the docking port of the first sleeve. In order to prevent the concrete from affecting the state of the spring during the pouring of column reinforced concrete, a cover is provided on the positioning groove to completely enclose the spring in the positioning groove to avoid the entry of concrete.

[0035] The second sleeve 50 includes an end 51 connected to the column steel bar connection end and a docking portion 52 inserted and docked with the second sleeve. The end 51 connected to the column steel bar connection end is of a straight cylinder structure, and its inner wall is provided with internal threads and can be threadedly connected to the column steel bar connection end.

[0036] The docking portion 52 is of a cylindrical structure, and its outer diameter is larger than the outer diameter of the end 51 connected to the column steel bar connection end. The outer diameter of the docking portion 52 is the same as or slightly smaller than the inner diameter of the docking portion 42 of the first sleeve 40. A limiting hole 521 for the locking tongue to pass through is opened at the position of the docking portion 52 relative to the locking tongue.

[0037] When the second sleeve 50 is inserted into the first sleeve 40, the second sleeve 50 presses against the arc surface of the locking tongue 422, causing the locking tongue 422 to withdraw from the hollow inner cavity of the first sleeve 40. At this time, the spring 423 is in a compressed state; when the limiting hole of the second sleeve 50 is displaced to the position of the locking tongue 422, the locking tongue 422 loses the pressing force, and the locking tongue 422 extends into the hollow inner cavity of the second sleeve 50 through the through hole in the wall of the first sleeve and the limiting hole 521 in the wall of the second sleeve 50 under the elastic force of the spring 423, locking the second sleeve 50 in the first sleeve 40. At this time, the second sleeve 50 also moves to the bottom within the docking portion 42 of the first sleeve 40. Since the docking end of the first sleeve 40 is of a flared structure, it is very convenient for the second sleeve 50 and the first sleeve 40 to be aligned.

[0038] In order to achieve a better locking connection effect, a locking mechanism can be provided on the outer peripheral surfaces near both ends of the docking portion 42 of the first sleeve 40. The locking mechanisms need to be arranged in a staggered manner. Correspondingly, the limiting holes of the second sleeve 50 also need to be arranged in a staggered manner. The purpose of the staggered arrangement is to ensure that when inserting and docking, the limiting holes that first enter the first sleeve 40 will not interact with other locking mechanisms.

[0039] For better insertion and docking, the cross-section of the limiting hole 521 of the second sleeve is set to a flared structure, and the width of the large-diameter end of the flared structure is greater than the width of the locking tongue. See Figure 3 , and the end of the limiting hole in contact with the first sleeve is the large-diameter end. When the second sleeve is inserted into the first sleeve and there is a deviation in position, the locking tongue abuts against the inclined surface on one side of the flared structure of the limiting hole under the action of the spring force. Since there are at least two locking mechanisms, at least two locking tongues respectively abut against the inclined surfaces on one side of the flared structures of the corresponding limiting holes; under the combined action of multiple springs and multiple locking tongues, the end of the first sleeve or the second sleeve connected to the column steel bar rotates, causing the locking tongue to pass through the limiting hole and enter the hollow inner cavity of the second sleeve. Therefore, when the cross-section of the limiting hole is set to a flared structure and the maximum diameter is greater than the diameter of the locking tongue, a relatively large alignment deviation can be allowed when the first sleeve and the second sleeve are docked.

Claims

1. A rapid closing device for column steel reinforcement cages, characterized in that, It includes a first sleeve and a second sleeve. Internal threads are respectively provided at one ends of the first sleeve and the second sleeve, and the other ends can be fixedly connected through docking and insertion. The first sleeve and the second sleeve have the same structure. At the ends of the first sleeve and the second sleeve that can be inserted and docked, a latch is protruding arranged, and an arc surface is provided on the latch. An arc-shaped disk that can displace along the arc surface is arranged inside the sleeve. When the first sleeve and the second sleeve are docked, the two latches can be inserted into the sleeves opposite to them respectively, and the two arc-shaped disks are respectively located in a self-locking cavity formed by the arc surfaces of the two latches. A pull rod is fixedly connected to the arc-shaped disk, and the pull rod is fixed on the inner wall of the sleeve through a spring. A space for the latch to be inserted is reserved between the latch and the inner wall of the sleeve. The spring is fixedly arranged on the inner wall of the sleeve on one side of the space for the latch to be inserted. One end of the arc-shaped disk is in fit with the arc surface of the latch. The arc-shaped disk is of a semi-elliptical structure. After the two sleeves are docked, the two arc-shaped disks are docked to form an ellipse and are located in the self-locking cavity formed by the arc surfaces of the two latches. The latch protrudes outward from the inner wall side of the sleeve, and the latch is of a bent structure.

2. The column steel cage rapid closing device according to claim 1, characterized in that One end of the sleeve with an internal thread is of a straight cylinder structure, and the other end is of a trumpet-shaped structure.

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