Quick connecting structure for formwork cover beam shell

Abstract

The utility model relates to the technical field of formwork cover beam construction, and discloses a formwork cover beam shell quick connecting structure which comprises shell concrete and reinforcing steel bars arranged in the shell concrete. A shell connecting mechanism is arranged between the two side walls in the length direction of the shell concrete, the shell connecting mechanism is arranged between the adjacent steel bars, and the shell connecting mechanism comprises an embedded sleeve arranged in the shell concrete and a connecting bolt connected to the embedded sleeve. The connecting bolts are arranged between the embedded sleeves, the middle sleeve is arranged between the connecting bolts, a detachable plugging piece is arranged at an opening of each embedded sleeve, any connecting bolt extends into the middle sleeve, the connecting strength of the shell bodies on the two sides is enhanced, and the purpose that the boundary dimension of the formwork does not deform is achieved.

Description

Technical Field

[0001] This utility model relates to the field of construction technology of molded cover beams, and in particular to a quick connection structure for the shell of a molded cover beam. Background Technology

[0002] Currently, after the initial pour of the formwork cap beam, the two side shells will serve as templates for the secondary pour, bearing the thrust of the concrete and posing a risk of outward expansion and deformation. Therefore, several tie rods are needed to reinforce the two side shells to ensure that the formwork's external dimensions remain unchanged.

[0003] The existing technology involves pre-embedding exposed reinforcing bars during the initial pouring of the shell concrete and using a tie rod to weld the exposed reinforcing bars to achieve the tie rod effect. The disadvantages are that the pre-embedded exposed reinforcing bars are prone to corrosion and damage, making demolding inconvenient. Welding the tie rod to the pre-embedded exposed reinforcing bars also results in arc light pollution and insufficient weld lap length. Utility Model Content

[0004] This application provides a quick-connect structure for the shell of a molded cover beam to solve the problems in the prior art.

[0005] To address the aforementioned technical problems, this application provides a quick-connect structure for a formwork cap beam, comprising: a shell concrete and reinforcing bars disposed within the shell concrete; a shell connection mechanism is provided between two side walls along the length of the shell concrete, the shell connection mechanism being disposed between adjacent reinforcing bars, the shell connection mechanism including a pre-embedded sleeve disposed within the shell concrete, a connecting bolt connected to the pre-embedded sleeve, and an intermediate sleeve disposed between the connecting bolts, the opening of the pre-embedded sleeve being provided with a detachable sealing element, and any of the connecting bolts extending into the intermediate sleeve.

[0006] In some embodiments of this application, the detachable sealing component includes a connecting rod extending into a pre-embedded sleeve, a sealing cap connected to the outer end of the connecting rod, and a rubber sleeve disposed on the outside of the sealing cap. The surface of the connecting rod is provided with external threads, and the side of the sealing cap away from the connecting rod is provided with a cross-shaped recess. The rubber sleeve is used to isolate concrete from the sealing cap.

[0007] In some embodiments of this application, the reinforcing bars include first square stirrups disposed on both sides inside the shell concrete and second square stirrups disposed at the bottom of the shell concrete. The second square stirrups are tied above the bottom slab concrete surface and are directly exposed during concrete pouring.

[0008] In some embodiments of this application, the first square stirrups are arranged in parallel in 3 groups, the vertical spacing between the centers of the first square stirrups is 250mm, and the free ends of the square stirrups on both sides are bent at 90°. The second square stirrups are arranged in parallel in 2 groups, and the horizontal spacing between the centers of the second square stirrups is 300mm.

[0009] In some embodiments of this application, the inner diameter of the pre-embedded sleeve is φ22mm, and the inner diameter of the intermediate sleeve is φ22mm.

[0010] In some embodiments of this application, the threads on both sides of the inner sleeve are reversed.

[0011] Compared with the prior art, this utility model has the following features and beneficial effects:

[0012] In this utility model, the pre-embedded sleeve is fixed by a template, ensuring precise positioning and convenient construction. The secondary connection operation of the pre-embedded sleeve, connecting bolts, and intermediate sleeve is simple. By tightening the intermediate sleeve, the connecting bolts on both sides are connected to the pre-embedded sleeve, achieving the purpose of connecting the shell. This allows the shell to withstand the thrust of the secondary concrete pouring, avoiding the danger of outward expansion and deformation. At the same time, it prevents the exposed pre-embedded steel bars from rusting and being damaged. Its widespread use can produce good results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0014] Figure 2 This is a schematic diagram of the steel reinforcement arrangement in an embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation of the detachable sealing component according to an embodiment of this utility model;

[0016] Figure 4 This is a top view schematic diagram of the sealing cap according to an embodiment of this utility model.

[0017] In the diagram, 100 is the shell concrete; 200 is the reinforcing bar; 210 is the first square stirrup; 220 is the second square stirrup; 300 is the shell connection mechanism; 310 is the embedded sleeve; 320 is the connecting bolt; 330 is the intermediate sleeve; 400 is the detachable sealing component; 410 is the connecting rod; 420 is the sealing cap; and 430 is the rubber sleeve. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0020] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] like Figure 1-4 As shown, according to some embodiments of this application, a quick connection structure for a molded cap beam includes: a shell concrete 100 and reinforcing bars 200 disposed within the shell concrete 100; a shell connection mechanism 300 is disposed between two side walls along the length of the shell concrete 100, the shell connection mechanism 300 is disposed between adjacent reinforcing bars 200, the shell connection mechanism 300 includes a pre-embedded sleeve 310 disposed within the shell concrete 100, connecting bolts 320 connected to the pre-embedded sleeve 310, and an intermediate sleeve 330 disposed between the connecting bolts 320, a detachable sealing member 400 is provided at the opening of the pre-embedded sleeve 310, and any connecting bolt 320 extends into the intermediate sleeve 330.

[0023] It should be noted that an anchoring steel bar 200 is welded to one side of the embedded sleeve 310. The embedded sleeve 310 and the pouring template of the shell concrete 100 are fixed by fixing bolts to achieve precise positioning of the embedded sleeve 310. When the shell concrete 100 is poured and the pouring template is removed, the fixing bolts are unscrewed, and the embedded sleeve 310 remains in the shell concrete 100. The anchoring steel bar achieves a strong anchoring effect with the shell concrete 100.

[0024] According to some embodiments of this application, the detachable sealing component 400 includes a connecting rod 410 extending into the pre-embedded sleeve 310, a sealing cap 420 connected to the outer end of the connecting rod 410, and a rubber sleeve 430 disposed on the outside of the sealing cap 420. The surface of the connecting rod 410 is provided with external threads, and the side of the sealing cap 420 away from the connecting rod 410 is provided with a cross-shaped recess. The rubber sleeve 430 is used to isolate the concrete from the sealing cap 420.

[0025] It should be noted that the embedded sleeve 310 is set horizontally. After the pouring is completed, it needs to be roughened and hoisted. In order to prevent fly slag or fly ash from entering the embedded sleeve 310 during roughening and hoisting, a detachable sealing part is set at the opening of the embedded sleeve 310. This effectively prevents fly slag or fly ash from entering the embedded sleeve 310 and also provides a certain degree of protection for the shape of the opening of the embedded sleeve 310. The sealing cap 420 is installed by screwing to prevent it from falling off during roughening and hoisting.

[0026] According to some embodiments of this application, the reinforcing bar 200 includes a first square stirrup 210 disposed on both sides inside the shell concrete 100 and a second square stirrup 220 disposed at the bottom of the shell concrete 100. The second square stirrup 220 is tied above the bottom slab concrete surface and is directly exposed during concrete pouring.

[0027] According to some embodiments of this application, the first square stirrups 210 are arranged in three parallel groups, the vertical spacing between the centers of the first square stirrups 210 is 250mm, the free ends of the square stirrups on both sides are bent at 90°, and the second square stirrups 220 are arranged in two parallel groups, the horizontal spacing between the centers of the second square stirrups 220 is 300mm.

[0028] According to some embodiments of this application, the inner diameter of the pre-embedded sleeve 310 is φ22mm, and the inner diameter of the intermediate sleeve 330 is φ22mm.

[0029] According to some embodiments of this application, the threads on both sides of the inner sleeve 330 are reversed.

[0030] According to some embodiments of this application, during construction, the pre-embedded sleeve 310 is fixed to the mold with bolts to achieve precise positioning. It is pre-embedded in the shell concrete 100 during the initial pouring of the shell. When dismantling the formwork, unscrew the fixing bolts, leaving the embedded sleeve 310 inside the shell. The embedded sleeve 310 is welded with anchoring steel bars 200 to achieve a reinforced anchoring effect with the concrete. There are two connecting bolts 320, located on both sides of the middle sleeve 330, and connected to the embedded sleeves 310 on both sides of the shell. After tightening, the connection effect is achieved. The middle sleeve 330 is located in the middle. When rotated, it drives the connecting bolts 320 on both sides to rotate and allows the connecting bolts 320 to be screwed into the embedded sleeve 310, thus achieving the purpose of connecting the shell. During operation, the middle sleeve 330 is already connected to the two connecting bolts 320. The total length of the connecting bolts 320 is close to the distance between the two embedded sleeves 310. First, partially screw one side of the connecting bolt 320 into the embedded sleeve 310, then align the other side of the connecting bolt 320 with the opposite embedded sleeve 310 and partially screw it in. Then rotate the middle sleeve 330 to achieve the purpose of fully screwing the connecting bolt 320 into the embedded bolt.

[0031] In summary, this utility model relates to the field of construction technology of formwork cap beams, and discloses a quick connection structure for the shell of a formwork cap beam, including: shell concrete and reinforcing bars set in the shell concrete; a shell connection mechanism is provided between the two side walls of the shell concrete along its length, the shell connection mechanism is set between adjacent reinforcing bars, the shell connection mechanism includes a pre-embedded sleeve set in the shell concrete, a connecting bolt connected to the pre-embedded sleeve, and an intermediate sleeve set between the connecting bolts, the opening of the pre-embedded sleeve is provided with a detachable sealing member, and any of the connecting bolts extends into the intermediate sleeve to strengthen the connection strength of the two shells and achieve the purpose of not deforming the outer dimensions of the formwork.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A quick-connect structure for a molded cover beam shell, comprising: The shell concrete (100) and the reinforcing bars (200) disposed within the shell concrete (100); characterized in that a shell connection mechanism (300) is provided between two side walls in the length direction of the shell concrete (100), the shell connection mechanism (300) is disposed between adjacent reinforcing bars (200), the shell connection mechanism (300) includes a pre-embedded sleeve (310) disposed within the shell concrete (100), a connecting bolt (320) connected to the pre-embedded sleeve (310), and an intermediate sleeve (330) disposed between the connecting bolts (320), a detachable sealing member (400) is provided at the opening of the pre-embedded sleeve (310), and any one of the connecting bolts (320) extends into the intermediate sleeve (330).

2. The quick-connect structure for a molded cover beam according to claim 1, characterized in that, The detachable sealing component (400) includes a connecting rod (410) extending into the pre-embedded sleeve (310), a sealing cap (420) connected to the outer end of the connecting rod (410), and a rubber sleeve (430) disposed on the outside of the sealing cap (420). The surface of the connecting rod (410) is provided with external threads, and the side of the sealing cap (420) away from the connecting rod (410) is provided with a cross-shaped recess. The rubber sleeve (430) is used to isolate the concrete from the sealing cap (420).

3. The quick-connect structure for a molded cover beam according to claim 1, characterized in that, The reinforcing bars (200) include a first square stirrup (210) set on both sides inside the shell concrete (100) and a second square stirrup (220) set at the bottom of the shell concrete (100). The second square stirrup (220) is tied higher than the bottom slab concrete surface and is directly exposed when the concrete is poured.

4. The quick-connect structure for a molded cover beam according to claim 3, characterized in that, The first square stirrups (210) are arranged in parallel in 3 groups, with a vertical spacing of 250mm between the centers of the first square stirrups (210) and the free ends of the square stirrups on both sides bent at 90°. The second square stirrups (220) are arranged in parallel in 2 groups, with a horizontal spacing of 300mm between the centers of the second square stirrups (220).

5. The quick-connect structure for a molded cover beam according to claim 1, characterized in that, The inner diameter of the pre-embedded sleeve (310) is φ22mm, and the inner diameter of the intermediate sleeve (330) is φ22mm.

6. The quick-connect structure for a molded cover beam according to claim 1, characterized in that, The threads on both sides of the inner sleeve (330) are reversed.

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