Canard wing type embedded channel and duct piece

Abstract

The utility model discloses a canard type pre-buried channel and a duct piece. The channel comprises a channel body with a hollow structure, the section of the channel body is of a C-shaped structure defined by a top wall and two side walls, an opening groove is formed in one side of the C-shaped structure, and sawtooth-shaped clamping grooves are formed in the inner sides of the portions, bent inwards, of the opening ends of the two side walls. The outer sides of the two side walls symmetrically extend outwards to form a group of wing plates; the duct piece of the canard type pre-buried channel comprises a channel main body pre-buried in a concrete base body, an anchor rod mounted on a positioning hole and a connecting bolt mounted on a mounting hole. The channel has the advantages that the contact area of the channel and a concrete base body is increased through the design that the wing plates and the channel body form the included angle, the embedding capacity of the channel is effectively improved, the channel is more stable in long-term use, and the channel is particularly suitable for high-strength load and complex stress environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of shield tunnel construction technology, especially a kind of canard embedded channel and segment. BACKGROUND

[0002] In the field of tunnel and underground construction, embedded channels are widely used in concrete structures to bear and fix various connecting pieces, thereby achieving stable connection between building components. However, most existing embedded channels are designed with simple C-shaped or other straight cross-sections, which have many shortcomings in use. For example, the fixing strength of traditional channels is limited, and they are prone to looseness or slippage due to concrete shrinkage, long-term load, or external vibration, leading to insecure fixation of subsequent connecting pieces. In addition, traditional channels often lack targeted functional structures, which makes them more likely to fall off in complex stress environments, affecting the safety and service life of building structures. At the same time, traditional channels have poor versatility and cannot adapt to various complex construction needs. For example, in actual construction, the installation demand of anchor rods and connecting bolts is increasing, but existing channels usually do not reserve positioning holes or mounting holes, resulting in the need for additional processing or adjustment during construction, increasing construction difficulty and cost. In addition, the shape design of the channel and concrete combination part is relatively simple, and there is a lack of effective structure optimization to disperse stress or enhance bonding strength, which is particularly evident in high-strength load or long-term use. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of fixed performance high and installation convenient canard embedded channel and segment.

[0004] To solve the above technical problems, the utility model discloses a canard embedded channel and segment, which includes a channel body with a hollow structure. The cross-section of the channel body is a C-shaped structure with an open slot on one side, and the inner side of the bent part of the two side walls at the open end is provided with a sawtooth-shaped clamping groove. The outer side of the two side walls extends outwardly to form a group of wing plates.

[0005] The top of the channel body is provided with a plurality of positioning holes for installing anchor rods.

[0006] The wing plates are inclined to the open side.

[0007] The top of the channel body is provided with a plurality of mounting holes for installing connecting bolts.

[0008] The channel body and the wing plates are integrally formed.

[0009] The segment includes an embedded channel body in the concrete base, an anchor rod installed on the positioning hole, and a connecting bolt installed on the mounting hole.

[0010] The bottom of the connecting bolt is provided with a connecting hole for connecting an external member.

[0011] The connecting bolt is connected with the external connecting member through the connecting hole.

[0012] The bottom of the external connecting member is provided with an operation hole.

[0013] The utility model has the advantages of:

[0014] (1) The wing plate is arranged at an angle with the channel body to increase the contact area between the channel and the concrete base body, effectively improve the embedding capacity of the channel, and make it more stable in long-term use, especially suitable for high-strength load and complex stress environment.

[0015] (2) The sawtooth-shaped clamping groove arranged on the inner wall of the channel body can increase the engagement force between the channel and the connecting member, prevent the connecting member from loosening or slipping due to stress, and further improve the fixing effect and safety performance.

[0016] (3) The channel body and the wing plate are integrally formed, avoiding the weak structure problem that may occur at the connecting part, having higher overall strength and better reliability, and being suitable for various harsh construction conditions. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a side view of the wing plate type embedded channel of the utility model;

[0018] Figure 2 is a structural view of the wing plate type embedded channel of the utility model;

[0019] Figure 3 is an assembly view of the wing plate type embedded channel of the utility model;

[0020] Figure 4 is an assembly side view of the wing plate type embedded channel of the utility model. DETAILED DESCRIPTION

[0021] The utility model will be further described in detail in combination with the drawings and specific embodiments. EMBODIMENT

[0022] As Figure 1 , Figure 2As shown, the canard-type embedded channel and pipe segment, the cross-section of the channel body 1 is a C-shaped structure with an open groove on one side surrounded by a top wall 4 and two side walls 5, and the two side walls 5 are provided with a serrated groove 3 on the inner side of the part that bends inward at the open end, and a group of wing plates 2 are symmetrically extended outward from the outside of the two side walls 5. The contact area between the channel and the concrete is increased by the wing plates 2, and the anti-pullout performance is improved; the connecting end of the channel body 1 and the wing plate 2 is provided with a chamfer, which is used to relieve stress concentration and prevent structural cracking or damage; the top of the channel body 1 is provided with a number of positioning holes 6 evenly distributed along the length of the channel for installing anchor rods 7; the top of the channel body 1 is provided with a number of mounting holes 8 evenly distributed along the length of the channel for installing connecting bolts 9; the channel body 1 and the wing plate 2 are an integrally formed structure, thereby ensuring the overall strength and stability, while simplifying the production process and reducing processing costs. Example

[0023] like Figure 3 、 Figure 4 As shown, on the basis of the canard-type embedded groove including embodiment 1, the pipe segment 14 in the pipe segment of the canard-type embedded groove includes a groove body 1 embedded in the concrete matrix 10, and the groove body 1 is firmly combined with the concrete by pre-embedding, ensuring the bearing capacity and pull-out resistance of the structure; the anchor rod 7 installed on the positioning hole 6 is used to enhance the fixing strength of the groove body 1 in the concrete and prevent the displacement of the groove body 1 due to external force; the connecting bolt 9 installed on the mounting hole 8 facilitates the rapid and reliable connection between the groove body 1 and the external component, and provides stable force support; the bottom of the connecting bolt 9 is provided with a connecting hole 11 for connecting the external component, and the connecting bolt 9 is connected to the external connecting member 12 through the connecting hole 11, and the connecting hole 11 provides a standardized interface for the installation of the external component, which is convenient for matching with various structural members; the bottom of the external connecting member 12 is provided with a threaded hole 13.

Claims

1. A canard-type embedded channel, comprising a channel body (1) having a hollow structure, wherein the cross section of the channel body (1) is a C-shaped structure with an open groove on one side surrounded by a top wall (4) and two side walls (5), and characterized in that: The two side walls (5) are provided with sawtooth-shaped slots (3) on the inner sides of the inwardly bent portions at the opening ends, and a group of wing plates (2) are symmetrically extended outwards from the outer sides of the two side walls (5).

2. The canard-type embedded channel according to claim 1, characterized in that: The top of the channel body (1) is provided with a plurality of positioning holes (6) for installing anchor rods (7).

3. The canard-type embedded channel according to claim 2, characterized in that: The wing plate (2) is inclined toward the opening side.

4. The canard-type embedded channel according to claim 3, characterized in that: The top of the channel body (1) is provided with a plurality of mounting holes (8) for mounting connecting bolts (9).

5. The canard-type embedded channel according to claim 4, characterized in that: The channel body (1) and the wing plate (2) are an integrally formed structure.

6. A segment having the canard-type embedded channel according to any one of claims 1 to 5, characterized in that: The pipe segment (14) comprises a channel body (1) pre-buried in a concrete matrix (10), an anchor rod (7) installed on a positioning hole (6), and a connecting bolt (9) installed on a mounting hole (8).

7. The segment according to claim 6, characterized in that: The bottom of the connecting bolt (9) is provided with a connecting hole (11) for connecting to an external component.

8. The segment according to claim 7, characterized in that: The connecting bolt (9) is connected to the external connecting member (12) through the connecting hole (11).

9. The segment according to claim 8, characterized in that: An operating hole (13) is provided at the bottom of the external connecting piece (12).

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