Precast concrete segments

Abstract

The utility model relates to the technical field of concrete pipe segments, specifically a precast concrete pipe segment, comprising a pipe segment body, a first connecting hole and a second connecting hole are arranged on the pipe segment body, the inner wall of the pipe segment body is provided with a protective mechanism, the protective mechanism comprises an L-shaped wire groove, the inner wall of the pipe segment body is provided with a wire groove, a protective plate is buckled and connected to the wire groove, four rotating shafts are rotatably connected to the protective plate in a rectangular array, two rubber rings are symmetrically fixed on the four rotating shafts about the protective plate, the rubber rings are in contact with the protective plate, and buckle plates in contact with the pipe segment body are fixedly connected to the four rotating shafts, the buckle plates on the two opposite rotating shafts are arranged back to back, the wire groove can be preset on the inner wall of the concrete pipe segment, and the protection of the electric wires can be quickly installed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipe segments, in particular to a prefabricated concrete pipe segment. Background Art

[0002] Concrete segments are pipes made of a mixture of cement, gravel, sand and water, usually made up of several small pieces. It is a very important building material and is widely used in urban drainage systems and tunnel projects; it can also be used in petroleum, chemical industry, trains, roads, mining and water conservancy; concrete segments are made up of multiple small pieces, and their structure is relatively simple, and they can be flexibly spliced ​​according to actual needs.

[0003] However, the concrete segments currently used in tunnels are all arc-shaped structures. Multiple concrete segments are spliced ​​in the circumferential direction to form a circular pipe, and then longer pipes are spliced ​​in this way. The inner wall of the concrete segment is usually a whole. When constructing transportation such as subways, more wires are required. There are no prefabricated wire ducts on the concrete segments. When installing the wires, it is necessary to re-cut the grooves or punch holes on the inner wall of the segment to fix the wires, which is inconvenient to operate and not conducive to the installation of the wires.

[0004] Therefore, a drain pipe device that is easier to operate is needed. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a reinforced concrete drainage pipe forming device, which can make the fixed clamping ring on the inner mold engage into the fixed ring through the lifting equipment, thereby facilitating the fixing of the clamping ring on the chassis, so that the clamping ring can be quickly positioned.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A precast concrete segment comprises a segment body, wherein the segment body is provided with a first connecting hole and a second connecting hole, the inner wall of the segment body is provided with a protective mechanism, the protective mechanism comprises an L-shaped wire groove, the inner wall of the segment body is provided with a wire groove, a protective plate is buckled and connected to the wire groove, the protective plate is rotatably connected to four rotating shafts in a rectangular array, two rubber rings are symmetrically fixed on the four rotating shafts about the protective plate, the rubber rings are in contact with the protective plate, and the four rotating shafts are fixedly connected with a gusset plate in contact with the segment body, and the gusset plates on two opposite rotating shafts are arranged back to back.

[0008] Optionally, in an embodiment of the utility model, the protection mechanism further includes a knob, and the ends of the four rotating shafts are fixedly connected with a knob.

[0009] Optionally, in an embodiment of the utility model, the protective mechanism further includes a direction indicator, and the four knobs are each provided with a direction indicator, and the direction indicated by the direction indicator is consistent with the direction of the buckle plate.

[0010] Optionally, in an embodiment of the utility model, the protection mechanism further includes connecting ropes, two connecting ropes are fixedly connected between the segment body and the protection plate, and the connecting ropes are diagonally arranged between the segment body and the protection plate.

[0011] Optionally, in an embodiment of the utility model, the protective mechanism further includes a handle groove, and a handle groove is provided at the center of the surface of the protective plate.

[0012] Optionally, in one embodiment of the utility model, a snap-fit ​​mechanism is provided on the segment body, and the snap-fit ​​mechanism includes a clamping plate and a clamping slot. A clamping plate with an arc-shaped structure is provided on the top of the segment body, and a clamping slot corresponding to the clamping plate is provided on the bottom of the segment body.

[0013] Optionally, in an embodiment of the utility model, two groups of the first connection holes are provided, and the two groups of the first connection holes are equidistantly arranged on both sides of the segment body, and the first connection holes are in an arc-shaped structure.

[0014] Optionally, in an embodiment of the present invention, the second connection hole is an arc-shaped structure, and two of the second connection holes are located at the top and bottom of the tube segment body, and one of the second connection holes passes through the clamping plate.

[0015] Optionally, in one embodiment of the utility model, a drainage mechanism is provided on the segment body, and the drainage mechanism includes a drainage groove. A drainage groove is provided on the outer side of the segment body, and a seal is slidably connected to the drainage groove.

[0016] Beneficial effects of the utility model

[0017] When installing electric wires for internal traffic in a tunnel, the precast concrete segment of the utility model rotates four shafts on the protective plate to drive the buckle plate to rotate. When two groups of buckle plates are separated from the segment body, the protective plate can be removed, the electric wires are placed inside the wire trough, the protective plate is buckled onto the wire trough, the shaft is rotated, and the two groups of buckle plates are rotated to buckle with the segment body to complete the installation of the protective plate. The electric wires can be prevented from falling off and the electric wires can be quickly buried underground to reduce damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the connection structure between the tube segment body and the first connection hole shown;

[0021] Figure 3 for Figure 1 A schematic diagram of the connection structure between the tube segment body and the second connection hole shown;

[0022] Figure 4 for Figure 1 A schematic diagram of the enlarged structure of part A shown;

[0023] Figure 5 for Figure 1 The enlarged structural diagram of part B is shown;

[0024] Figure 6 for Figure 4 Schematic diagram of the connection structure of the protective plate, rotating shaft and connecting rope shown.

[0025] Explanation of the accompanying reference numerals: segment body 1, snap-fit ​​mechanism 2, clamping plate 201, clamping slot 202, first connecting hole 3, second connecting hole 4, protective mechanism 5, protective plate 501, wire slot 502, handle slot 503, connecting rope 504, rotating shaft 505, rubber ring 506, clamping plate 507, knob 508, direction indicator 509, drainage mechanism 6, drainage slot 601, seal 602. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments. Example 1

[0027] In order to facilitate the installation of wires, a prefabricated concrete segment was designed. The specific solution is as follows:

[0028] like Figure 1-6 As shown, the precast concrete segment includes a segment body 1, the segment body 1 is provided with a first connection hole 3 and a second connection hole 4, the inner wall of the segment body 1 is provided with a protective mechanism 5, the protective mechanism 5 includes an L-shaped wire groove 502, the inner wall of the segment body 1 is provided with a wire groove 502, the wire groove 502 is buckled and connected to the wire groove 502, the protective plate 501 is rotatably connected to four rotating shafts 505 in a rectangular array, two rubber rings 506 are symmetrically fixed on the four rotating shafts 505 about the protective plate 501, the rubber rings 506 are in contact with the protective plate 501, and the four rotating shafts 505 are fixedly connected with buckle plates 507 in contact with the segment body 1, and the buckle plates 507 on two opposite rotating shafts 505 are arranged back to back.

[0029] The protection mechanism 5 further includes a knob 508 , and the ends of the four rotating shafts 505 are fixedly connected with the knob 508 to facilitate the rotation of the rotating shafts 505 .

[0030] The protection mechanism 5 also includes a direction mark 509 . Each of the four knobs 508 is provided with a direction mark 509 . The direction indicated by the direction mark 509 is consistent with the direction of the buckle plate 507 , which is convenient for confirming the position of the buckle plate 507 when installing or removing the protection plate 501 .

[0031] The protective mechanism 5 also includes connecting ropes 504. Two connecting ropes 504 are fixedly connected between the segment body 1 and the protective plate 501, and the connecting ropes 504 are diagonally arranged between the segment body 1 and the protective plate 501. When the wires are installed, the protective plate 501 can be removed. After loosening the protective plate 501, the connecting ropes 504 can hang it, which is convenient for the installation and maintenance of the wires.

[0032] The protection mechanism 5 further includes a handle groove 503 . A handle groove 503 is provided at the center of the surface of the protection plate 501 to facilitate removal of the protection plate 501 and to facilitate taking it.

[0033] A snap-fit ​​mechanism 2 is provided on the segment body 1, and the snap-fit ​​mechanism 2 includes a clamping plate 201 and a clamping slot 202. The top of the segment body 1 is provided with an arc-shaped clamping plate 201, and the bottom of the segment body 1 is provided with a clamping slot 202 corresponding to the clamping plate 201, which facilitates the splicing of multiple segment bodies 1 and makes the connection more secure.

[0034] There are two groups of first connecting holes 3, and the two groups of first connecting holes 3 are equidistantly arranged on both sides of the segment body 1, and the first connecting holes 3 are in an arc-shaped structure; the second connecting holes 4 are in an arc-shaped structure, and the two second connecting holes 4 are located at the top and bottom of the segment body 1, one of the second connecting holes 4 passes through the clamping plate 201, and multiple segment bodies 1 are spliced ​​in the circumferential direction through the first connecting holes 3, and multiple groups of spliced ​​segment bodies 1 are horizontally connected through the second connecting holes 4.

[0035] A drainage mechanism 6 is provided on the segment body 1, and the drainage mechanism 6 includes a drainage groove 601. A drainage groove 601 is provided on the outer side of the segment body 1, and a seal 602 is slidably connected to the drainage groove 601. When the tunnel needs to be drained, the seal 602 on the segment body 1 can be pulled out to form a drainage groove 601 for easy drainage. The seal 602 can be left stationary in sections where drainage is not required, thereby increasing the stability of the structure.

[0036] Instructions for use:

[0037] First, when the segment body 1 is prefabricated, a slot 202, a line slot 502 and a drainage slot 601 are prefabricated by a mold. When the subway is constructed, a shield machine is used to excavate the tunnel, and multiple segment bodies 1 are spliced ​​together in the circumferential direction to form a pipe body. Then, multiple spliced ​​pipe bodies are connected to support the tunnel through multiple groups of pipe bodies.

[0038] When splicing the segment bodies 1 in the circumferential direction, they are spliced ​​symmetrically from bottom to top inside the tunnel. When splicing two adjacent segment bodies 1, the first connection holes 3 on the two segment bodies 1 are aligned. After the segment bodies 1 in the circumferential direction are spliced, special segment bolts are installed on the two adjacent first connection holes 3, and the two segment bodies 1 are fixed and fastened by bolts and nuts.

[0039] If drainage is required, the seal 602 needs to be removed from the segment body 1 before assembly to open the drainage groove 601 to achieve drainage. If drainage is not required, the seal 602 remains unchanged to increase the structural stability of the segment body 1. After splicing one tube body in the circumferential direction, multiple tube bodies are spliced ​​in this way. When splicing two adjacent tube bodies, pay attention to inserting the clamping plate 201 on the next segment body 1 into the inside of the clamping groove 202 on the previous segment body 1 to increase the stability of the connection between the two tube bodies, and align the second connection holes 4 between the two adjacent segment bodies 1, and insert the segment bolts to tighten;

[0040] When installing the wires for internal traffic in the tunnel, turn the four knobs 508 on the protective plate 501 to realize that the rotating shaft 505 drives the buckle plate 507 to rotate. The direction mark 509 on the knob 508 makes it easy to understand the position of the buckle plate 507. When the two groups of buckle plates 507 are separated from the pipe segment body 1, the protective plate 501 can be removed. After the protective plate 501 is removed, the connecting rope 504 can be used to hang the protective plate 501, and the wires are placed inside the wire groove 502. Hold the handle groove 503 to buckle the protective plate 501 onto the wire groove 502, turn the knob 508 to drive the rotating shaft 505 to rotate, and rotate the two groups of buckle plates 507 to buckle with the pipe segment body 1. The installation of the protective plate 501 can be completed, which can prevent the wires from falling off. At the same time, the wires are buried underground to reduce damage.

[0041] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A precast concrete segment, comprising a segment body, characterized in that: The segment body is provided with a first connecting hole and a second connecting hole, and the inner wall of the segment body is provided with a protective mechanism, which includes an L-shaped wire groove. The inner wall of the segment body is provided with a wire groove, and a protective plate is buckled and connected to the wire groove. The protective plate is rotatably connected with four rotating shafts in a rectangular array, and two rubber rings are symmetrically fixed on the four rotating shafts about the protective plate, and the rubber rings are in contact with the protective plate. The four rotating shafts are fixedly connected with a buckle plate that is in contact with the segment body, and the buckle plates on two opposite rotating shafts are arranged back to back.

2. The precast concrete segment according to claim 1, characterized in that: The protection mechanism also includes a knob, and the ends of the four rotating shafts are fixedly connected with a knob.

3. The precast concrete segment according to claim 2, characterized in that: The protection mechanism also includes a direction indicator. The four knobs are each provided with a direction indicator, and the direction indicated by the direction indicator is consistent with the direction of the buckle plate.

4. The precast concrete segment according to claim 1, characterized in that: The protection mechanism also includes connecting ropes. Two connecting ropes are fixedly connected between the segment body and the protection plate, and the connecting ropes are diagonally arranged between the segment body and the protection plate.

5. The precast concrete segment according to claim 1, characterized in that: The protection mechanism also includes a handle groove, and the handle groove is provided at the center of the surface of the protection plate.

6. The precast concrete segment according to claim 1, characterized in that: The segment body is provided with a snap-fit ​​mechanism, which includes a clamping plate and a clamping slot. The top of the segment body is provided with a clamping plate with an arc structure, and the bottom of the segment body is provided with a clamping slot corresponding to the clamping plate.

7. The precast concrete segment according to claim 1, characterized in that: There are two groups of the first connection holes, and the two groups of the first connection holes are equidistantly arranged on both sides of the tube segment body, and the first connection holes are in an arc-shaped structure.

8. The precast concrete segment according to claim 6, characterized in that: The second connection hole is in an arc-shaped structure, and two of the second connection holes are located at the top and the bottom of the tube body, and one of the second connection holes passes through the clamping plate.

9. The precast concrete segment according to claim 8, characterized in that: The segment body is provided with a drainage mechanism, and the drainage mechanism includes a drainage groove. The outer side of the segment body is provided with a drainage groove, and a sealing strip is slidably connected to the drainage groove.

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