Near double-column expansion joint self-adaptive integrated formwork device

Abstract

The utility model relates to the technical field of civil and industrial buildings, and discloses an adjacent double-column expansion joint self-adaptive integrated formwork device which comprises two column formworks, a supporting assembly and square and round buckles, the supporting assembly is located on the inner sides of the two column formworks, and the square and round buckles are located on the outer surfaces of the two column formworks; the supporting assembly comprises an opposite-pull rod, longitudinal supporting rods are arranged on the two sides of the opposite-pull rod respectively, the two longitudinal supporting rods are connected with a force transmission piece, and an opposite-pull sleeve connected with the opposite-pull rod is arranged on the inner side of the force transmission piece. The square and round buckle comprises a frame, and the frame is fixed to the outer surface of the column formwork. According to the adjacent double-column expansion joint self-adaption integrated formwork device, the problems that a traditional expansion joint formwork is difficult to mount and dismount, poor in construction quality and incapable of being repeatedly used are solved by means of the supporting assembly and the square and round buckles, the expansion joint formwork supporting device is high in universality, the construction cost is greatly saved, and the rigidity of supporting of an expansion joint inner formwork can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil and industrial buildings, in particular to an adaptive integrated formwork device for adjacent double-column expansion joints. Background Technique

[0002] In industrial and civil buildings, due to the influence of factors such as temperature changes, uneven settlement of the foundation, and earthquakes, additional stresses and deformations will be generated inside the building structure, which will affect the use and safety of the building.

[0003] In order to prevent the above factors from having a negative impact on the cast-in-place concrete body or even causing damage, during the construction of the cast-in-place concrete body, such as at the connection between the main building and the podium of a building near adjacent double columns, expansion joints are generally left. Since the operation space for the expansion joint support is too narrow, there is no unified national and industry standard at present. The current common practice is mainly to place extruded polystyrene boards (or other foam boards) on the inner sides of the formworks of the two components to facilitate the later removal of the formworks, and connect the double beams (columns) and the steel pipe keels together through wall-piercing tie bolts.

[0004] Since the formwork has no keel and no lateral support, when the concrete of the two components is poured simultaneously, the vibration of the concrete will cause the concrete on one side to squeeze towards the other side, resulting in quality accidents such as formwork bulging and displacement on both sides of the expansion joint. Therefore, an adaptive integrated formwork device for adjacent double-column expansion joints is proposed. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides an adaptive integrated formwork device for adjacent double-column expansion joints, which has the advantages of wide application range, good environmental protection, and good forming quality, and solves the problems of easy formwork bulging and displacement.

[0007] (2) Technical Solutions

[0008] To achieve the above purposes of wide application range, good environmental protection, and good forming quality, the utility model provides the following technical solutions: an adaptive integrated formwork device for adjacent double-column expansion joints, including two column formworks, a support component, and square-round fasteners. The support component is located inside the two column formworks, and the square-round fasteners are located on the outer surfaces of the two column formworks;

[0009] The support component includes tie rods. Longitudinal support rods are respectively arranged on both sides of the tie rods. The two longitudinal support rods are connected with a force transfer member, and a tie sleeve connected to the tie rod is arranged inside the force transfer member;

[0010] The square-round fastener includes a frame, and the frame is fixed to the outer surface of the column formwork.

[0011] As a preferred technical solution of the present utility model, the two longitudinal support rods are respectively attached to the column formworks on both sides. Force transmission members are respectively arranged at the front ends of the two longitudinal support rods. The other ends of the force transmission members are hinged with tension sleeves. The tension sleeves are fixedly connected to the tension rods. Force transmission members are also arranged at the rear ends of the two longitudinal support rods and are hinged to the tension sleeves.

[0012] As a preferred technical solution of the present utility model, a pin is inserted at the connection between the longitudinal support rod and the force transmission member, and a pin is also inserted at the connection between the force transmission member and the tension sleeve.

[0013] As a preferred technical solution of the present utility model, a positive thread is provided on the outer surface of the top of the tension rod directly below the front tension sleeve, a reverse thread is provided on the outer surface of the bottom of the tension rod directly above the rear tension sleeve, and a sleeve is arranged between the positive thread and the reverse thread.

[0014] As a preferred technical solution of the present utility model, a through hole is provided at the right end of the frame, and a U-shaped card slot part is provided at the left end of the frame. The U-shaped card slot part can be clamped on the side surface of the column formwork.

[0015] As a preferred technical solution of the present utility model, a fixing pin can be clamped inside the through hole.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides an adaptive integrated formwork device for adjacent double-column expansion joints, having the following beneficial effects:

[0018] This adaptive integrated formwork device for adjacent double-column expansion joints solves the problems of difficult installation and removal of traditional expansion joint formworks, poor construction quality, and non-reusability by means of the support assembly and the square-round fasteners. The expansion joint formwork support device has strong versatility, greatly saves construction costs, can increase the stiffness of the formwork support inside the expansion joint, reasonably arranges the number of support devices according to the structural construction characteristics, avoids quality accidents such as formwork bulging and displacement, improves the forming quality of the expansion joint structure, and has good application effects. Description of the drawings

[0019] Figure 1 It is a schematic elevational structure diagram of the column formwork support of the present utility model;

[0020] Figure 2 It is a schematic structure diagram of the support assembly of the present utility model;

[0021] Figure 3 It is a schematic diagram of a partial structure at the frame of the present utility model;

[0022] Figure 4This is a partial side view structural schematic diagram of the frame of the utility model.

[0023] In the figure: 1. Opposite tension rod; 2. Opposite tension sleeve; 3. Force transmission member; 4. Longitudinal support rod; 5. Forward thread; 6. Reverse thread; 7. Pin; 8. Column formwork; 9. Support assembly; 10. Square-round buckle; 11. Frame; 12. Through hole; 13. U-shaped card slot part; 14. Fixed pin. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, 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 drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Please refer to Figures 1-4 , an adaptive integrated formwork device for adjacent double-column expansion joints, including two column formworks 8, a support assembly 9, and a square-round buckle 10. The support assembly 9 is located inside the two column formworks 8, and the square-round buckle 10 is located on the outer surfaces of the two column formworks 8.

[0028] The support assembly 9 includes an opposite tension rod 1. Longitudinal support rods 4 are respectively arranged on both sides of the opposite tension rod 1. The two longitudinal support rods 4 are connected with a force transmission member 3, and an opposite tension sleeve 2 connected to the opposite tension rod 1 is arranged inside the force transmission member 3.

[0029] In this embodiment, the two longitudinal support rods 4 are respectively fitted with the column formwork 8 on both sides, and the front ends of the two longitudinal support rods 4 are respectively provided with force transmission parts 3, and the other ends of the force transmission parts 3 are hinged with the tension sleeve 2. The front ends of the two longitudinal support rods 4 are hinged with the front section tension sleeve 2 through the force transmission parts 3, and the tension sleeve 2 is fixedly connected to the tension rod 1. The rear ends of the two longitudinal support rods 4 are also provided with force transmission parts 3 and are hinged with the tension sleeve 2. The rear ends of the two longitudinal support rods 4 are hinged with the rear end tension sleeve 2 through the force transmission parts 3.

[0030] The tie rod 1 is welded together by a φ10 steel tie rod and a φ60 steel tie ring, and a forward thread 5 and a reverse thread 6 of opposing threads are provided on both sides of the steel tie rod.

[0031] The tension sleeve 2 is made of a 25×25 aluminum alloy U-shaped groove and a φ10 threaded sleeve. The thickness of the U-shaped groove is 2 mm, and the sleeve thread matches the thread direction on the tension rod 1.

[0032] The force transmission member 3 is made of a 25×25 aluminum alloy U-shaped groove.

[0033] The two longitudinal support rods 4 are made of 30×30 aluminum alloy U-shaped grooves and have adjustment holes reserved thereon.

[0034] In this embodiment, a pin 7 is inserted into the connection between the longitudinal support rod 4 and the force transmission member 3 , and a pin 7 is also inserted into the connection between the force transmission member 3 and the pulling sleeve 2 .

[0035] In this embodiment, the top outer surface of the tension rod 1 is provided with a forward thread 5 located directly below the front end tension sleeve 2, and the bottom outer surface of the tension rod 1 is provided with a reverse thread 6 located directly above the rear end tension sleeve 2, and a sleeve is provided between the forward thread 5 and the reverse thread 6.

[0036] It should be noted that a sleeve is fixed in the middle of the tension sleeves 2 at both ends, and the tension rods 1 with matching thread structures at both ends pass through the through holes in the middle of the tension sleeves 2 at both ends. The tension rods 1 are used to rotate to spread the two longitudinal support rods 4 or to retract the two longitudinal support rods 4, and each component unit functions independently.

[0037] The support assembly 9 can only be removed after the concrete on both sides of the expansion joint reaches the specifications and design strength. The order of removing the support assembly 9 is from top to bottom for the column structure and from one side for the beam structure. When removing, rotate the ring on the tension rod 1 in the opposite direction until the support assembly 9 is separated from the column formwork 8 on both sides of the expansion joint.

[0038] Among them, compared with the traditional expansion joint method, this device has strong versatility, does not need to be customized, and has a high rate of repeated utilization. Compared with traditional extruded board supports, this device is more convenient to install and disassemble, and can save a lot of labor and construction costs.

[0039] The square-round buckle 10 includes a frame 11, and the frame 11 is fixed to the outer surface of the column formwork 8.

[0040] In this embodiment, a through hole 12 is provided at the right end of the frame 11, and a U-shaped card slot portion 13 is provided at the left end of the frame 11. The U-shaped card slot portion 13 can be clamped on the side surface of the column formwork 8.

[0041] In this embodiment, a fixing pin 14 can be clamped inside the through hole 12.

[0042] It should be noted that the square-round buckle 10 is used to fix the double columns as a whole and cooperate with the support assembly 9 to form an overall formwork system. The adjustable formwork reinforcement construction principle of the square-round buckle 10 is to control the size of the square column by controlling the hollow through holes 12 of the four frames 11. By inserting the fixing pin 14 into the through hole 12, the cooperation between the through hole 12 at the end of the frame 11 and the fixing pin 14 can reinforce the column formwork 8 of various sizes. The four frames 11 are engaged with each other to form a horizontal whole to reinforce the column formwork 8, which is suitable for reinforcing column formworks 8 of different sizes.

[0043] In the overall fixing of the column formwork 8 by the square-round buckle 10, the splicing seam between the formworks is connected by double-sided spoon-shaped wood, which has the advantages of small usage amount, standard size, high flatness, high strength, long service life, etc. After the formwork is assembled, close the mold, pass the wall-piercing bolts through the designed holes, and install the main wall keels in sequence; first, the spacing is 200 mm - 250 mm, and then the upper and lower main keels are installed in sequence. The inner corner is fixedly installed at the connecting corner of the main keel. The connecting locking pin piece of the main keel fixes and locks the connection between the inner corner and the main keel, so that both horizontal and vertical directions can reach 90 degrees, thus achieving a more stable effect of no leakage of slurry and no bulging of the formwork.

[0044] The application situation in the above embodiment is as follows:

[0045] For the support assembly 9, its front end is two parallel longitudinal support rods 4, and the rear end is a handle part. The support part is placed in a parallel state with the two formworks. When reaching the position to be supported, rotate the force transmission member 3. The force transmission member 3 drives the tension sleeve 2 through the tension screw thread on the force transmission member 3, and then drives the force transmission member 3 to expand the longitudinal support rods 4 until they contact the column formworks 8 on both sides, achieving the purpose of arbitrarily adjusting the support width.

[0046] The support assembly 9 is applicable to the formwork support structure of expansion joints of frame structures with any width, any length, and any form. It is installed at the position of the building expansion joint. The support assembly 9 can be adjusted according to the width of the expansion joint and the structural stress characteristics to meet the installation requirements of different working conditions. The expansion joint formwork support device can be reused, and the reuse rate is high, and it is convenient to install and disassemble.

[0047] The beneficial effects in the above embodiment are as follows:

[0048] With the help of the support component 9 and the square-round buckle 10, the problems of difficult installation and removal of traditional expansion joint formwork, poor construction quality and non-reusability are solved. The expansion joint formwork support device has strong versatility, greatly saves construction costs, can increase the stiffness of the formwork support inside the expansion joint, reasonably arranges the number of support devices according to the construction characteristics of the structure, avoids quality accidents such as formwork bulging and displacement, improves the forming quality of the expansion joint structure, and has good application effects.

[0049] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive integrated formwork device for adjacent double-column expansion joints, comprising two column formworks (8), a support component (9) and a square-round buckle (10). The support component (9) is located inside the two column formworks (8), and the square-round buckle (10) is located on the outer surfaces of the two column formworks (8). It is characterized in that: The support component (9) includes a tie rod (1). Longitudinal support rods (4) are respectively arranged on both sides of the tie rod (1). A force transmission member (3) is connected to the two longitudinal support rods (4). A tie sleeve (2) connected to the tie rod (1) is arranged inside the force transmission member (3). The square-round buckle (10) includes a frame (11), and the frame (11) is fixed to the outer surface of the column formwork (8).

2. The self - adaptive integrated formwork device for adjacent double - column expansion joints according to claim 1, characterized in that: The two longitudinal support rods (4) are respectively in contact with the column formworks (8) on both sides. Force transmission members (3) are respectively arranged at the front ends of the two longitudinal support rods (4). The other ends of the force transmission members (3) are hinged to a tie sleeve (2). The tie sleeve (2) is fixedly connected to the tie rod (1). Force transmission members (3) are also arranged at the rear ends of the two longitudinal support rods (4) and are hinged to the tie sleeve (2).

3. The adaptive integrated formwork device for adjacent double-column expansion joints according to claim 2, wherein: A pin (7) is inserted at the connection between the longitudinal support rod (4) and the force transmission member (3), and a pin (7) is also inserted at the connection between the force transmission member (3) and the tie sleeve (2).

4. An adaptive integrated template device for adjacent double-column expansion joints according to claim 2, characterized in that: A positive thread (5) is arranged on the outer surface of the top of the tie rod (1) directly below the front tie sleeve (2). A reverse thread (6) is arranged on the outer surface of the bottom of the tie rod (1) directly above the rear tie sleeve (2). A sleeve is arranged between the positive thread (5) and the reverse thread (6).

5. An adaptive integrated template device for an adjacent double-column expansion joint according to claim 1, characterized in that: A through hole (12) is formed at the right end of the frame (11). A U-shaped card slot portion (13) is arranged at the left end of the frame (11), and the U-shaped card slot portion (13) can be clamped on the side surface of the column formwork (8).

6. The self - adaptive integrated formwork device for adjacent double - column expansion joints according to claim 5, characterized in that: A fixing pin (14) can be clamped inside the through hole (12).

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