Adjustable embedded channel

Abstract

The utility model relates to the technical field of steel tank embedded parts, in particular to an adjustable embedded channel which comprises a steel tank, a connecting piece and a reinforcing piece. The connecting piece is welded to the back of the steel tank, the design requirement for the thickness of a pipe jacking concrete protection layer of different projects is met, and the reinforcing piece is connected with the steel tank through the connecting piece. Through the connecting mode, the height of the connecting piece and the anchoring depth of the channel can be adjusted so as to meet the stress design requirements of different pipe jacking tunnel projects, meanwhile, the shape of the reinforcing piece can be changed, interference with reinforcing steel bars of a reinforcing cage is avoided, and cutting and avoiding are not needed; the position and the distance are convenient to adjust, and project use is met; the reinforcing parts are ribbed steel bars and are in an n shape, a Z shape and a C shape at the same time, and the anchoring stress requirement of the pipe jacking tunnel can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel channel embedded parts, in particular to an adjustable embedded channel. Background Art

[0002] In recent years, with the acceleration of urbanization and the increasing shortage of land resources, people's requirements for the transmission capacity and reliability of urban power grids have increased year by year, and cable tunnels are becoming the mainstream solution for urban power grid construction. According to engineering needs, cable tunnels are currently mostly constructed using the pipe jacking method. With its advantages of high degree of automation, little impact on the surrounding environment, and high safety, it has been widely used in engineering practice.

[0003] However, in order to improve production efficiency, the steel cages of jacking pipes are currently processed by machine spiral welding. When prefabricating longer embedded steel troughs, the anchor legs of the embedded steel troughs are prone to interfere with the steel bars of the steel cage, resulting in the inability to adjust the position and the spacing between the steel troughs. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an adjustable embedded groove.

[0005] The utility model adopts the following technical solutions:

[0006] An adjustable embedded channel comprises a steel channel, a connecting piece, and a reinforcing piece; a notch is provided on one side of the steel channel; the connecting piece is fixedly connected to a side of the steel channel away from the notch, and the connecting piece is connected to the steel channel to form a connecting hole; the reinforcing piece comprises a bending portion, and the bending portion is arranged parallel to the steel channel; the bending portion is passed through the connecting hole to realize the connection between the reinforcing piece and the steel channel.

[0007] Preferably, when the bent portion is inserted into the connecting hole, the bent portion abuts against a side of the steel groove facing away from the notch.

[0008] Preferably, the connecting member includes a buckling portion and connecting portions arranged on both sides of the buckling portion; the buckling portion is an inverted U-shape; the connecting portion is in contact with a side of the steel groove away from the notch; when the bent portion is inserted into the connecting hole, the bent portion abuts against the inner wall of the buckling portion.

[0009] Preferably, the reinforcement member is a steel bar; the outer surface of the steel bar is provided with ribs evenly distributed.

[0010] Preferably, the steel bar is in a "X" shape; the bending portion is arranged in the middle of the steel bar.

[0011] Preferably, the steel bar is Z-shaped; the bending portion is provided at one end of the steel bar close to the steel channel.

[0012] Preferably, the reinforcing bar is C-shaped; the bent portion is provided at one end of the reinforcing bar close to the steel groove.

[0013] Preferably, the reinforcing bar is in the shape of a barb, and the reinforcing bar includes a bent portion, an arc segment connected to one end of the bent portion, and a vertical segment connected to one end of the arc segment.

[0014] Preferably, the steel groove is in an arc-shaped structure.

[0015] Preferably, the connecting member and the reinforcing member are arranged correspondingly; both the reinforcing member and the connecting member are provided with a plurality of them and are arranged at equal intervals on one side of the steel groove facing away from the groove opening.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The adjustable embedded channel involved in the present utility model includes a steel groove, a connecting member and a reinforcing member; the connecting member is welded to the back of the steel groove, meeting the design requirements of the concrete protective layer thickness of the jacking pipe for different projects. The reinforcing member is connected to the steel groove through the connecting member; through this connection method, the height of the connecting member and the anchoring depth of the channel can be adjusted to adapt to the force design requirements of different jacking pipe tunnel projects. At the same time, the shape of the reinforcing member can be changed to avoid interference with the reinforcing bars of the steel cage without the need for cutting and avoidance; it is convenient to adjust the position and spacing to meet the project use; among them, the reinforcing member is selected as a ribbed reinforcing bar, and at the same time, the shapes of the letter "J", the letter "Z" and the letter "C" are adopted, which can meet the anchoring force requirements of the jacking pipe tunnel. Description of the Drawings

[0018] Figure 1 It is a construction schematic diagram of the adjustable embedded channel according to the first embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a partial enlarged schematic diagram of part A in

[0020] Figure 3 It is a schematic structural diagram of the adjustable embedded channel according to the first embodiment of the present utility model;

[0021] Figure 4 It is a front view of the adjustable embedded channel according to the first embodiment of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the adjustable embedded channel according to the second embodiment of the present utility model;

[0023] Figure 6 It is a schematic structural diagram of the adjustable embedded channel according to the third embodiment of the present utility model;

[0024] Figure 7Structural schematic diagram of the adjustable embedded channel for the fourth embodiment of the present utility model;

[0025] Reference numerals in the figure:

[0026] 100 - Adjustable embedded channel;

[0027] 110 - Steel channel; 111 - Groove opening;

[0028] 120 - Connector; 121 - Clamping portion; 122 - Connecting portion;

[0029] 130 - Reinforcement member; 131 - Bending portion; 132 - First connecting arm; 133 - Second connecting arm;

[0030] 140 - Connection hole;

[0031] 130a - Reinforcement member; 131a - Bending portion;

[0032] 130b - Reinforcement member; 131b - Bending portion;

[0033] 130c - Reinforcement member; 131c - Bending portion; 132c - Arc segment; 133c - Vertical segment;

[0034] 200 - Steel reinforcement cage; 210 - Transverse steel bars. Detailed implementation manners

[0035] 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.

[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 thus should not be construed as a limitation to the present utility model. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection, it may be a mechanical connection or an electrical connection, it may be a direct connection or a connection through an intermediate medium, and it may be the communication inside two components. 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 circumstances.

[0038] As Figures 3 to 4 shown, the adjustable embedded channel 100 provided by the first embodiment of the present utility model is applied to a cable tunnel; the adjustable embedded channel 100 includes a steel channel 110, a connecting member 120 and a reinforcing member 130; a notch 111 is formed on one side of the steel channel 110; the connecting member 120 is fixedly connected to the side of the steel channel 110 facing away from the notch 111 by welding. After welding, a connection hole 140 is formed between the connecting member 120 and the back of the steel channel 110; the reinforcing member 130 includes a bent portion 131, and the bent portion 131 is arranged parallel to the steel channel 110; the bent portion 131 passes through the connection hole 140 to realize the connection between the reinforcing member 130 and the steel channel 110. At this time, the bent portion 131 abuts against the side of the steel channel 110 facing away from the notch 11. In order to disperse the force and meet the anchoring force requirement, in this embodiment, the connecting member 120 and the reinforcing member 130 are correspondingly arranged, and both the reinforcing member 130 and the connecting member 120 are provided with a plurality of them and are arranged at equal intervals on the side of the steel channel 110 facing away from the notch 111.

[0039] During actual construction, as Figure 1 and Figure 2 shown, a steel reinforcement cage 200 is prefabricated in the cable tunnel. It is necessary to prefabricate the steel channel 110 inside the steel reinforcement cage 200. At this time, both the connecting member 120 and the reinforcing member 130 are located inside the steel reinforcement cage 200. Then, the end of the reinforcing member 130 away from the steel channel 110 is welded to the transverse steel bar 210 of the steel reinforcement cage 200. Finally, concrete is poured into the steel reinforcement cage 200 to form a concrete protective layer, and at the same time, the steel channel 110 is embedded in the concrete protective layer. The reinforcing member 130 is used to provide a supporting force for the steel channel 110, so that the anchoring force of the steel channel 110 meets the design and project use requirements.

[0040] Among them, the existing embedded channels adopt fixed anchor legs, and the anchor legs are prone to interference with the steel reinforcement cage. At this time, the interfering anchor legs need to be cut off, but this construction method will cause the anchoring force of the embedded channel to fail to meet the design requirements. The adjustable embedded channel 100 involved in the present utility model can, on the one hand, adjust the height of the connecting piece 120 to adjust the overall height of the adjustable embedded channel 100, so as to meet the concrete cover heights of different projects; on the other hand, it can adjust the shape of the reinforcing piece 130 according to the transverse steel bar distribution of the steel reinforcement cage 200 to avoid interference between the reinforcing piece 130 and the transverse steel bars 210 of the steel reinforcement cage 200.

[0041] Please refer to Figure 2 , in this embodiment, since the steel channel 110 is arranged inside the steel reinforcement cage, the steel channel 110 is an arc-shaped structure. When the steel channel 110 is embedded in the concrete cover, the steel channel 100 is flush with the concrete cover.

[0042] Please refer to Figure 3 , in this embodiment, the connecting piece 120 includes a fastening portion 121 and connecting portions 122 arranged on both sides of the fastening portion 121, and the fastening portion 121 is an inverted U shape. During installation, the connecting portions 122 are attached to the back surface of the steel channel 110 and fixed by welding; and when the bending portion 131 passes through the connecting hole 140, the bending portion 131 abuts against the inner wall of the fastening portion 121 to avoid shaking and improve stability. During the production process, the longitudinal height of the fastening portion 121 can be adjusted according to the concrete thickness required by the project.

[0043] Please refer to Figure 3 and Figure 4 , in this embodiment, the reinforcing piece 130 is selected as a steel bar, and the steel bar is a ribbed steel bar with ribs evenly distributed on its outer surface. The reinforcing piece is in a shape of a capital "J", and the bending portion is arranged in the middle of the reinforcing piece, specifically including a bending portion 131, and a first connecting arm 132 and a second connecting arm 133 symmetrically arranged on both sides of the bending portion 131. Both the first connecting arm 132 and the second connecting arm 133 are in an L shape, and both ends can be welded to the transverse steel bars 210 of the steel reinforcement cage 200.

[0044] As Figure 5 shown, the adjustable embedded channel provided by the second embodiment of the present utility model is different from the first embodiment in that the structure of the reinforcing piece 130a is different; the reinforcing piece 130a is in a Z shape, and the bending portion 131a is arranged at one end of the reinforcing piece 130a close to the steel channel.

[0045] As Figure 6As shown in the figure, the adjustable embedded channel provided by the third embodiment of the present utility model is different from the first embodiment in that the structure of the reinforcement member 130b is different; the reinforcement member 130b is C-shaped, and the bending portion 131b is arranged at one end of the reinforcement member 130b close to the steel channel.

[0046] As Figure 7 shown in the figure, the adjustable embedded channel provided by the fourth embodiment of the present utility model is different from the first embodiment in that the structure of the reinforcement member 130c is different; the reinforcement member 130c is in the shape of an inverted hook, and the reinforcement member 130c includes a bending portion 131c, an arc section 132c connected to one end of the bending portion 131c, and a vertical section 133c connected to one end of the arc section 132c; the arc section 132c is used to avoid the connecting member, and the upper end of the vertical section 133c is used for welding with the steel reinforcement cage.

[0047] It should be noted that the shape of the reinforcement member is not limited to the above four structures, and the shape of the reinforcement member is adjusted and selected according to factors such as the design requirements of the project for anchoring force, the transverse steel bar distribution of the steel reinforcement cage, and the concrete cover thickness.

[0048] Compared with the prior art, the adjustable embedded channel involved in the present utility model includes a steel channel, a connecting member and a reinforcement member; the connecting member is welded to the back of the steel channel to meet the design requirements of the concrete cover thickness for different pipe jacking projects, and the reinforcement member is connected to the steel channel through the connecting member; through this connection method, the height of the connecting member and the anchoring depth of the channel can be adjusted to adapt to the force design requirements of different pipe jacking tunnel projects. At the same time, the shape of the reinforcement member can be changed to avoid interference with the steel bars of the steel reinforcement cage without the need for cutting and avoidance; it is convenient to adjust the position and spacing to meet the project use; among them, the reinforcement member is selected as ribbed steel bars, and at the same time, the shapes of the letter "J", the letter "Z" and the letter "C" are adopted, which can meet the anchoring force requirements of the pipe jacking tunnel.

[0049] The above only expresses the preferred technical solutions of the present utility model, and its description is relatively specific and detailed, but it should not be construed as a limitation of the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and the present utility model also intends to include these changes and modifications.

Claims

1. An adjustable embedded channel, characterized in that, It includes a steel channel, a connecting piece, and a reinforcing piece; a notch is opened on one side of the steel channel; the connecting piece is fixedly connected to the side of the steel channel away from the notch, and the connecting piece is connected to the steel channel to form a connecting hole; the reinforcing piece includes a bending portion, and the bending portion is arranged parallel to the steel channel; the bending portion is passed through the connecting hole to realize the connection between the reinforcing piece and the steel channel.

2. The adjustable embedded channel according to claim 1, characterized in that, When the bent portion is inserted into the connecting hole, the bent portion abuts against a side of the steel channel away from the notch.

3. The adjustable embedded channel according to claim 1, wherein, The connecting piece includes a buckling portion and connecting portions arranged on both sides of the buckling portion; the buckling portion is an inverted U-shape; the connecting portion is in contact with a side of the steel groove away from the notch; when the bent portion is inserted into the connecting hole, the bent portion abuts against the inner wall of the buckling portion.

4. The adjustable embedded channel according to claim 1, characterized in that, The reinforcement member is a steel bar; the outer surface of the steel bar is provided with ribs evenly distributed.

5. The adjustable embedded channel according to claim 4, wherein The steel bar is in a "X" shape; the bending portion is arranged in the middle of the steel bar.

6. The adjustable embedded channel according to claim 4, wherein The steel bar is Z-shaped; the bending portion is arranged at one end of the steel bar close to the steel channel.

7. The adjustable embedded channel according to claim 4, characterized in that, The steel bar is C-shaped; the bending portion is arranged at one end of the steel bar close to the steel channel.

8. The adjustable embedded channel according to claim 4, wherein, The steel bar is in a barb shape and comprises a bent portion, an arc segment connected to one end of the bent portion, and a vertical segment connected to one end of the arc segment.

9. The adjustable embedded channel according to claim 1, wherein, The steel trough is an arc-shaped structure.

10. The adjustable embedded channel according to claim 1, characterized in that, The connecting member and the reinforcing member are arranged correspondingly; a plurality of the reinforcing member and the connecting member are arranged equidistantly on a side of the steel channel away from the notch.

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