Detachable wall connecting accessory arranged on side face of concrete structure beam

Abstract

The utility model discloses a detachable wall connecting accessory arranged on the side face of a concrete structural beam, which is used for connecting an outer frame and the concrete structural beam and comprises a three-point type fixing structure and an extension type connecting piece, and the extension type connecting piece is detachably connected with the concrete structural beam through the three-point type fixing structure. The extending type connecting piece is of a vertical upward extending structure or a vertical downward extending structure so as to correspondingly adapt to the working condition that the upper surface or the lower surface of the concrete structural beam is close to the outer frame main joint. Through the arrangement of the detachable wall attaching piece, the connecting function of the wall attaching piece can be achieved only by adjusting the extending direction of the extending type connecting piece under the working condition that the distance between the main joint and the concrete structural beam is different, the purpose that the height is adjustable is achieved, the adjusting height is determined by the length of the extending type connecting piece, operation is more convenient and faster, and practicability is high. And the extension type connecting piece can be repeatedly used.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to an adjustable height external frame wall connection accessory. Background Art

[0002] External scaffolding is a construction platform constructed along the perimeter of a building. It plays a key role in ensuring personnel safety, improving work efficiency, and reducing construction time. Wall ties are components used to connect the scaffolding to the building structure and must be able to withstand both tension and compression. The "Safety Technical Specifications for Coupler-Type Steel Tubular Scaffolding in Building Construction" stipulates that wall ties should be located close to the main nodes, with a distance of no more than 300mm from the main nodes. The vertical spacing of wall ties should not exceed the building's floor height and should not exceed 4m.

[0003] The existing wall connecting parts have the following main problems:

[0004] It is difficult to coordinate the floor height and step height: At present, the step height of the fastener frame is 1.8 meters, and the step height of the plate frame is 2.0 meters. No matter how many step height frames are used, it is impossible to ensure that the step height module of the frame is completely consistent with the building floor height, which also makes it impossible to connect the wall parts to the frame beam. At present, in order to solve this problem, one is as follows Figure 1 The outer frame is equipped with additional vertical and horizontal bars (or diagonal bars) at the corresponding positions, which is to say, adding additional steps. This is a more formal approach. The disadvantage is that it affects the working height of the operating layer and increases the workload. The second is that Figure 2 The connection is made in the form of embedded steel pipes, which have poor adjustability. Once the steel pipes are embedded, they cannot be adjusted or replaced. Thirdly, the wall parts are connected by diagonal fasteners, which may cause the upper inclination to violate the requirement of high inside and low outside. More importantly, the fasteners cannot meet the stiffness requirements.

[0005] The pre-buried steel pipe wall connection parts on the top of the beam and slab affect the quality of the wall surface: connecting the external frame with short steel pipes with fasteners was also a common method for quite a long time in the past, but the disadvantage is that it affects the masonry of the exterior wall. In the later stage, the temporary openings need to cut the pre-buried steel pipes (fire prevention) and patch the masonry (the same seams in the masonry), which is prone to water leakage.

[0006] Wall ties fail to meet the requirements of "rigid components": Currently, many construction sites still use similar or improved methods such as steel bars (steel sheets) plus steel pipes and plastic expansion bolts to connect wall ties. Most of them cannot guarantee the rigidity requirements, or at least the connection to the structure is non-rigid and cannot resist bending and torsion.

[0007] Wall ties cannot be installed for large floor heights and large spans: When the floor height is above 4 meters and the clear column distance is more than three spans (generally 4.5 meters) for the external frame, the wall ties cannot be installed in two steps and three spans as required by the specifications. Most of the wall ties made on site are directly connected to the internal frame, which violates the requirement that the external frame must not be connected to the internal frame, and also affects the dismantling of the internal frame. Utility Model Content

[0008] In view of the above problems, the purpose of the present invention is to provide a detachable wall connection accessory provided on the side of a concrete structural beam.

[0009] The specific technical solutions are as follows:

[0010] A detachable wall connection accessory provided on the side of a concrete structural beam, used to connect an external frame and a concrete structural beam, comprises a three-point fixing structure and an extension type connector. The extension type connector is detachably connected to the concrete structural beam via the three-point fixing structure. The extension type connector is a vertically upward extending structure or a vertically downward extending structure, suitable for working conditions where the upper surface or lower surface of the concrete structural beam is close to the main node of the external frame.

[0011] Furthermore, the extended connector includes a vertical steel pipe, a middle connecting piece and an end connecting piece. The middle connecting piece is arranged at the middle of the vertical steel pipe, and the end connecting piece is arranged at one end of the vertical steel pipe.

[0012] Furthermore, the middle connecting piece includes a first connecting plate and an arc-shaped limiting structure. Both ends of the arc-shaped limiting structure are welded to the first connecting plate to form a through hole. The vertical steel pipe passes through the through hole to achieve connection with the middle connecting piece.

[0013] Furthermore, the three-point fixing structure includes two groups of first fixing structures fixed to the upper surface of the concrete structural beam, a group of second fixing structures fixed to the lower part of the concrete structural beam, a first angle code and a second angle code, the two groups of first fixing structures are fixedly connected to one side of the first angle code, and the group of second fixing structures is fixedly connected to one side of the second angle code.

[0014] Furthermore, the first fixing structure includes a bent screw and a nut, the lower end of the bent screw is embedded in the concrete structural beam, and the upper end extends horizontally and is fixedly connected to the first angle code through a nut; the second fixing structure includes a tension screw horizontally passed through the lower part of the concrete structural beam, and the tension screw is fixedly connected to the second angle code.

[0015] Furthermore, the middle connecting piece of the vertically upward extending structure is detachably connected to the first angle code through pins and bolts, the end connecting piece at one end of the vertically upward extending structure is detachably connected to the second angle code through pins and bolts, and the other end extends upward.

[0016] Furthermore, the middle connecting piece of the vertically downward extending structure is detachably connected to the second angle code by means of a pin and a bolt, the end connecting piece at one end of the vertically downward extending structure is detachably connected to the first angle code by means of a pin and a bolt, and the other end extends downward.

[0017] The beneficial effects of the present invention are:

[0018] 1) The utility model provides a detachable wall attachment, so that when the distance between the main node and the concrete structural beam is different, the wall attachment connection function can be realized by simply adjusting the extension direction of the extension connection member, thereby achieving the purpose of height adjustment. The adjustment height is determined by the length of the extension connection member, making the operation more convenient and quick, and the extension connection member can be reused;

[0019] 2) The utility model adopts a three-point fixing method to achieve the connection of the wall attachment. The screw is connected to the connecting piece through the angle code, directly bearing the tensile and compressive loads, ensuring the rigid fixation of the wall attachment and the concrete structural beam in all directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of adding additional steps in the prior art;

[0021] Figure 2 This is a schematic diagram of the method of directly pre-buried steel pipes in the prior art;

[0022] Figure 3 is a structural diagram of an extended connector;

[0023] Figure 4 Schematic diagram of the structure of the middle connecting piece;

[0024] Figure 5 Schematic diagram of the structure of the end connecting piece;

[0025] Figure 6 A schematic diagram of the assembly structure of the first fixed structure and the second fixed structure on the concrete structural beam;

[0026] Figure 7 This is a schematic diagram of a connection method when the extension type connector is a vertically upward extending structure;

[0027] Figure 8 Schematic diagram of the connection method when the extension type connector is a vertically downward extending structure;

[0028] Figure 9 It is a side view schematic diagram of the three-point fixing structure and the extended connecting member.

[0029] In the figure: 1. Three-point fixing structure; 11. First fixing structure; 111. Bending screw; 112. Nut; 12. Second fixing structure; 13. First angle bracket; 14. Second angle bracket; 2. Extended connector; 21. Vertical steel pipe; 22. Middle connecting piece; 221. First connecting plate; 222. Arc-shaped limiting structure; 223. Through hole; 23. End connecting piece; 3. Pin; 4. Bolt. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0031] A detachable wall connecting accessory provided on the side of a concrete structural beam, used to connect an external frame and a concrete structural beam, comprising a three-point fixing structure 1 and an extension type connecting member 2, such as Figure 3 As shown, the extended connector 2 includes a vertical steel pipe 21, a set of middle connecting pieces 22 and an end connecting piece 23. The middle connecting piece 22 is arranged in the middle of the vertical steel pipe 21, and the end connecting piece 23 is arranged at one end of the vertical steel pipe 21. Figure 4 As shown, the middle connecting piece 22 includes a first connecting plate 221 and an arc-shaped limiting structure 222. The two ends of the arc-shaped limiting structure 222 are welded to the first connecting plate 221 to form a through hole 223. The vertical steel pipe 21 passes through the through hole 223 to achieve connection with the middle connecting piece 22. The middle connecting piece 22 is provided with two connecting holes, one large and one small, as shown in FIG. Figure 5 As shown, one side of the end connecting piece 23 is fully welded to one end of the vertical steel pipe 21, and two connecting holes, one large and one small, are opened on the end connecting piece 23. Figure 6 and Figure 9 As shown, the three-point fixing structure 1 includes two groups of first fixing structures 11 fixed to the upper surface of the concrete structural beam, a group of second fixing structures 12 fixed to the lower part of the concrete structural beam, a first angle code 13 and a second angle code 14. Each group of first fixing structures 11 includes a bent screw 111 and a nut 112. The lower end of the bent screw 111 is pre-embedded in the concrete structural beam at an angle, and the upper end extends horizontally outward and is fixedly connected to one side of the first angle code 13 through the nut 112. The second fixing structure 12 includes a tension screw horizontally penetrated through the lower part of the concrete structural beam. The tension screw passes horizontally through the concrete structural beam and is fixedly connected to one side of the second angle code 14.

[0032] like Figure 7 As shown, when the upper surface of the concrete structural beam is close to the main node of the external frame, the extended connector 2 is a vertically upward extending structure relative to the concrete structural beam. At this time, the middle connecting piece 22 of the vertically upward extending structure and the other side of the first angle code 13 are detachably connected by means of a pin 3 and a bolt 4 passing through the connecting hole. The end connecting piece 23 at one end of the vertically upward extending structure and the other side of the second angle code 14 are detachably connected by means of a pin 3 and a bolt 4 passing through the connecting hole. The other end extends upward and is vertically connected to the wall connecting rod, and the wall connecting rod is vertically connected to the external frame.

[0033] like Figure 8As shown, when the lower surface of the concrete structural beam is close to the main node of the external frame, the extended connector 2 is a vertically downward extending structure relative to the concrete structural beam. At this time, the middle connecting piece 22 of the vertically downward extending structure and the other side of the second angle code 14 are detachably connected by means of a pin 3 and a bolt 4 passing through the connecting hole. The end connecting piece 23 at one end of the vertically downward extending structure and the other side of the first angle code 13 are detachably connected by means of a pin 3 and a bolt 4 passing through the connecting hole. The other end extends downward and is vertically connected to the wall connecting rod, and the wall connecting rod is vertically connected to the external frame.

Claims

1. A detachable wall connecting accessory provided on the side of a concrete structural beam, used to connect an external frame and a concrete structural beam, characterized in that: The invention comprises a three-point fixing structure (1) and an extension type connector (2), wherein the extension type connector (2) is detachably connected to the concrete structural beam via the three-point fixing structure (1), and the extension type connector (2) is a vertically upward extension structure or a vertically downward extension structure, so as to be applicable to working conditions where the upper surface or lower surface of the concrete structural beam is close to the main node of the external frame.

2. A detachable wall connecting accessory provided on the side of a concrete structural beam as claimed in claim 1, characterized in that: The extended connecting piece (2) comprises a vertical steel pipe (21), a middle connecting piece (22) and an end connecting piece (23), wherein the middle connecting piece (22) is arranged at the middle portion of the vertical steel pipe (21), and the end connecting piece (23) is arranged at one end portion of the vertical steel pipe (21).

3. A detachable wall connecting accessory provided on the side of a concrete structural beam as claimed in claim 2, characterized in that: The middle connecting piece (22) comprises a first connecting plate (221) and an arc-shaped limiting structure (222). Two ends of the arc-shaped limiting structure (222) are welded to the first connecting plate (221) to form a through hole (223). The vertical steel pipe (21) passes through the through hole (223) to achieve connection with the middle connecting piece (22).

4. A detachable wall connecting accessory provided on the side of a concrete structural beam as claimed in claim 3, characterized in that: The three-point fixing structure (1) comprises two groups of first fixing structures (11) fixed to the upper surface of the concrete structural beam, a group of second fixing structures (12) fixed to the lower part of the concrete structural beam, a first angle code (13) and a second angle code (14), wherein the two groups of first fixing structures (11) are fixedly connected to one side of the first angle code (13), and the group of second fixing structures (12) is fixedly connected to one side of the second angle code (14).

5. The detachable wall connecting accessory provided on the side of a concrete structural beam as claimed in claim 4, characterized in that: The first fixing structure (11) includes a bent screw (111) and a nut (112), wherein the lower end of the bent screw (111) is pre-buried in the concrete structural beam, and the upper end extends horizontally and is fixedly connected to the first angle code (13) via the nut (112); the second fixing structure (12) includes a tension screw horizontally passed through the lower part of the concrete structural beam, and the tension screw is fixedly connected to the second angle code (14).

6. A detachable wall connecting accessory provided on the side of a concrete structural beam as claimed in claim 5, characterized in that: The middle connecting piece (22) of the vertically upward extending structure is detachably connected to the first corner code (13) via a latch (3) and a bolt (4), and the end connecting piece (23) at one end of the vertically upward extending structure is detachably connected to the second corner code (14) via a latch (3) and a bolt (4), and the other end extends upward.

7. The detachable wall connecting accessory provided on the side of a concrete structural beam as claimed in claim 5, characterized in that: The middle connecting piece (22) of the vertically downward extending structure is detachably connected to the second corner code (14) via a latch (3) and a bolt (4), and the end connecting piece (23) at one end of the vertically downward extending structure is detachably connected to the first corner code (13) via a latch (3) and a bolt (4), and the other end extends downward.

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