Coastal subway concrete duct piece with quick connectors

Abstract

The utility model relates to the technical field of concrete pipe pieces, in particular to a coastal subway concrete pipe piece with a quick connector, which comprises a pipe piece, a positioning block is arranged at the upper end of the pipe piece, and a positioning groove is arranged at the lower end of the pipe piece. Two grooves are formed in the side wall of the plate block, and movable rods are connected into the grooves in a sliding mode; two protruding blocks are arranged on the side wall of the vertical plate, and clamping grooves are formed in the side walls of the protruding blocks. In the process that the protruding block slides into the groove, the inclined wall of the protruding block makes contact with the inclined wall of the movable rod, the protruding block pushes the movable rod to slide towards the interior of the sliding groove, and when the end of the movable rod makes contact with the clamping groove, the movable rod is pushed into the clamping groove from the interior of the sliding groove through elasticity of the spring, and the protruding block is clamped and fixed into the groove. By means of the design of the quick connectors, the splicing time of the pipe pieces is greatly shortened, the construction efficiency is improved, and the overall construction period of subway tunnel construction can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipe segments, in particular to a coastal subway concrete pipe segment with a quick joint. Background Art

[0002] Coastal subway concrete segments are the primary support structure in shield tunnels, fulfilling the crucial role of tunnel support. These segments are typically made from high-quality concrete and rebar to ensure high strength, durability, and waterproofing. During subway tunnel construction, the segments are assembled to form the tunnel's permanent lining, providing a safe and stable space for trains.

[0003] A search revealed a utility model patent with Chinese patent publication number CN220909707U, which discloses a concrete pipe segment reinforcement assembly comprising a pipe segment body, wherein the upper end face of the pipe segment body is provided with a first reinforcement plate, and the lower end face of the pipe segment body is provided with a second reinforcement plate. The upper and lower end faces of the pipe segment body are each provided with a plurality of positioning holes. The upper end face of the pipe segment body is provided with two first T-shaped chutes, wherein the first T-shaped chutes are internally slidably connected to a first T-shaped slider fixedly connected to the first reinforcement plate. The lower end face of the pipe segment body is provided with two second T-shaped chutes, wherein the second T-shaped chutes are internally slidably connected to a second T-shaped slider fixedly connected to the second reinforcement plate. Both the first and second reinforcement plates are connected to the pipe segment body via a limiting mechanism. The concrete pipe segment reinforcement assembly described in this utility model facilitates the limited installation and use between the reinforcement plates and the pipe segment, and can be disassembled without tools, thereby improving practicality.

[0004] After searching the above-mentioned patent, it was found that the pipe segment reinforcement was handled, but the structure failed to handle the rapid splicing of the pipe segments. As a result, due to the lack of a rapid splicing mechanism, operators needed to spend more time aligning, fixing and connecting the various pipe segments, which caused many inconveniences and extended the overall construction period. Utility Model Content

[0005] The purpose of the utility model is to provide a coastal subway concrete pipe segment with a quick joint, which can facilitate the quick splicing of the pipe segments through the structure, so as to solve the problem of inconvenience in quick splicing of the pipe segments in the prior art.

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

[0007] A coastal subway concrete pipe segment with a quick joint includes a pipe segment, a positioning block is provided at the upper end of the pipe segment, a plurality of holes are equidistantly provided on the side wall of the positioning block, a positioning groove is provided at the lower end of the pipe segment, a plurality of slots are equidistantly provided on the side wall of the pipe segment, the slots are connected to the positioning grooves, and bolts are threadedly connected inside the slots; a plate, the plate is provided inside the left side of the pipe segment, the side wall of the plate is provided with two grooves, and a movable rod is slidably connected inside the groove; a vertical plate, the vertical plate is provided inside the right side of the pipe segment, the side wall of the vertical plate is provided with two protrusions, the side wall of the protrusion is provided with a card groove, and one side of the protrusion is inclined.

[0008] Preferably, two sliding grooves are provided inside the plate, the sliding grooves are slidably connected to the movable rod, and one side of the movable rod is inclined.

[0009] Preferably, a spring is fixedly connected to the bottom of the slide groove, and the upper end of the spring is fixedly connected to the lower end of the movable rod.

[0010] Preferably, a cross bar is rotatably connected to one side of the plate, and a connecting rope is fixedly connected to the end of the movable rod, and the end of the connecting rope is fixedly connected to the side wall of the cross bar.

[0011] Preferably, a cavity is provided inside the plate, and the cavity is slidably connected to the connecting rope.

[0012] Preferably, a hole is provided through one side of the tube segment, the hole is communicated with the interior of the plate, and a hexagonal notch is provided at the end of the cross bar.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. When multiple pipe segments need to be spliced, the protrusion on the right vertical plate of one of the pipe segments is slid into the groove on the left vertical plate of the other pipe segment. During the process of the protrusion sliding into the groove, the inclined wall of the protrusion contacts the inclined wall of the movable rod, and the protrusion pushes the movable rod to slide into the slide groove. When the end of the movable rod contacts the slot, the elasticity of the spring pushes the movable rod from the slide groove into the slot, and the protrusion is engaged and fixed in the groove, thereby quickly connecting the two adjacent pipe segments. The design of the quick connector greatly shortens the time for splicing the pipe segments, improves construction efficiency, and helps to shorten the overall construction period of the subway tunnel.

[0015] 2. When multiple segments need to be connected up and down, the operator slides the positioning block set at the upper end of one segment into the positioning groove set at the lower end of another segment. After the positioning block slides into the positioning groove, the hole groove is aligned on one side of the slot hole, and then the bolt is rotated so that the bolt is threadedly connected to the hole groove, thereby connecting the two segments. The close fit between the positioning block and the positioning groove, and the firm connection between the bolt and the hole groove, jointly ensure the stability between the segments in the up and down directions, and improve the bearing capacity of the entire tunnel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view schematic diagram of the external structure of a coastal subway concrete segment with a quick joint proposed in the utility model.

[0017] Figure 2 This is a rear view external structural schematic diagram of a coastal subway concrete segment with a quick joint proposed in the utility model.

[0018] Figure 3 This is a schematic diagram of the left-side sectional structure of a coastal subway concrete segment with a quick joint proposed in the utility model.

[0019] Figure 4 This is a right side sectional structural schematic diagram of a coastal subway concrete segment with a quick joint proposed in the utility model.

[0020] In the figure: 001 pipe segment, 101 positioning block, 102 hole groove, 103 positioning groove, 104 slot hole, 105 bolt, 106 hole, 002 plate, 201 groove, 202 movable rod, 203 slide groove, 204 spring, 205 cross bar, 206 cavity, 207 connecting rope, 003 vertical plate, 301 protrusion, 302 slot. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-4, a coastal subway concrete pipe segment with a quick joint, including pipe segment 001, a positioning block 101 is provided on the upper end of the pipe segment 001, a plurality of holes 102 are equidistantly provided on the side wall of the positioning block 101, a positioning groove 103 is provided on the lower end of the pipe segment 001, a plurality of slots 104 are equidistantly provided on the side wall of the pipe segment 001, the slots 104 are connected to the positioning grooves 103, and bolts 105 are threadedly connected to the internal parts of the slots 104; plate 002, plate 002 is provided on the left side of the pipe segment 001, two grooves 201 are provided on the side wall of the plate 002, and a movable rod 202 is slidably connected to the internal part of the groove 201; vertical plate 003, vertical plate 003 is provided on the right side of the pipe segment 001, two protrusions 301 are provided on the side wall of the protrusion 301, and a card groove 302 is provided on the side wall of the protrusion 301, and one side of the protrusion 301 is inclined. When multiple pipe segments 001 need to be spliced, the operator will vertically connect the right side of one of the pipe segments 001. The protrusion 301 on the plate 003 slides into the groove 201 on the left vertical plate 003 of the other pipe segment 001. During the process of the protrusion 301 sliding into the groove 201, the movable rod 202 slides into the plate 002. When the end of the movable rod 202 contacts the slot 302, the movable rod 202 slides into the slot 302, locking and fixing the protrusion 301 into the groove 201, thereby quickly connecting the two adjacent pipe segments 001. When multiple pipe segments 001 need to be connected up and down, the operator slides the positioning block 101 set at the upper end of one of the pipe segments 001 into the positioning groove 103 set at the lower end of another pipe segment 001. After the positioning block 101 slides into the positioning groove 103, the hole groove 102 is aligned on one side of the slot hole 104, and then the bolt 105 is turned so that the bolt 105 is threadedly connected to the hole groove 102, thereby connecting the two pipe segments 001.

[0023] Two sliding grooves 203 are set inside the plate 002, and the sliding grooves 203 are slidably connected to the movable rod 202. One side of the movable rod 202 is tilted. When the inclined wall of the protrusion 301 contacts the inclined wall of the movable rod 202, the protrusion 301 pushes the movable rod 202 to slide into the sliding groove 203.

[0024] A spring 204 is fixedly connected to the bottom of the slide groove 203 , and the upper end of the spring 204 is fixedly connected to the lower end of the movable rod 202 . The movable rod 202 is pushed out of the slide groove 203 by the elasticity of the spring 204 .

[0025] A cross bar 205 is rotatably connected to one side of plate 002, and a connecting rope 207 is fixedly connected to the end of the movable rod 202. The end of the connecting rope 207 is fixedly connected to the side wall of the cross bar 205. The connecting rope 207 is reeled in by rotating the cross bar 205, so that the connecting rope 207 pulls the movable rod 202 to slide.

[0026] A cavity 206 is provided inside the plate 002 , and the cavity 206 is slidably connected to the connecting rope 207 , and the wound connecting rope 207 is stored through the cavity 206 .

[0027] A hole 106 is provided through one side of the pipe segment 001, and the hole 106 is connected to the interior of the plate 002. A hexagonal notch is provided at the end of the cross bar 205. The operator inserts a hexagonal wrench through the hole 106, and the end of the hexagonal wrench extends into the inside of the hexagonal notch provided at the end of the cross bar 205, and then rotates the wrench to rotate the cross bar 205.

[0028] In the present invention, when multiple pipe segments 001 need to be spliced, the operator slides the protrusion 301 on the right vertical plate 003 of one of the pipe segments 001 into the groove 201 on the left vertical plate 003 of another pipe segment 001. During the process of the protrusion 301 sliding into the groove 201, the inclined wall of the protrusion 301 contacts the inclined wall of the movable rod 202, and the protrusion 301 pushes the movable rod 202 to slide into the slide groove 203. When the end of the movable rod 202 contacts the card slot 302, the elasticity of the spring 204 pushes the movable rod 202 out of the slide groove 203 into the card slot 302, and the protrusion 301 is engaged and fixed in the groove 201, thereby quickly connecting the two adjacent pipe segments 001.

[0029] When multiple pipe segments 001 need to be connected up and down, the operator slides the positioning block 101 set at the upper end of one pipe segment 001 into the positioning groove 103 set at the lower end of another pipe segment 001. After the positioning block 101 slides into the positioning groove 103, the hole groove 102 is aligned on one side of the slot hole 104, and then the bolt 105 is rotated so that the bolt 105 is threadedly connected to the hole groove 102, thereby connecting the two pipe segments 001.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coastal subway concrete segment with a quick joint, characterized in that: include A tube segment (001), wherein a positioning block (101) is provided at the upper end of the tube segment (001), a plurality of holes (102) are equidistantly provided on the side wall of the positioning block (101), a positioning groove (103) is provided at the lower end of the tube segment (001), a plurality of slots (104) are equidistantly provided on the side wall of the tube segment (001), the slots (104) are communicated with the positioning grooves (103), and bolts (105) are threadedly connected inside the slots (104); A plate (002), the plate (002) is arranged inside the left side of the pipe segment (001), the side wall of the plate (002) is provided with two grooves (201), and the grooves (201) are slidably connected with movable rods (202); A vertical plate (003) is provided inside the right side of the pipe sheet (001), a side wall of the vertical plate (003) is provided with two protrusions (301), a side wall of the protrusion (301) is provided with a slot (302), and one side of the protrusion (301) is inclined.

2. The coastal subway concrete segment with quick joint according to claim 1, characterized in that: Two sliding grooves (203) are provided inside the plate (002), and the sliding grooves (203) are slidably connected to the movable rod (202), and one side of the movable rod (202) is inclined.

3. The coastal subway concrete segment with quick joint according to claim 2, characterized in that: A spring (204) is fixedly connected to the bottom of the sliding groove (203), and the upper end of the spring (204) is fixedly connected to the lower end of the movable rod (202).

4. The coastal subway concrete segment with quick joint according to claim 1, characterized in that: A crossbar (205) is rotatably connected to one side of the plate (002), and a connecting rope (207) is fixedly connected to the end of the movable rod (202), and the end of the connecting rope (207) is fixedly connected to the side wall of the crossbar (205).

5. The coastal subway concrete segment with quick joint according to claim 4, characterized in that: A cavity (206) is provided inside the plate (002), and the cavity (206) is slidably connected to a connecting rope (207).

6. The coastal subway concrete segment with quick joint according to claim 5, characterized in that: A hole (106) is provided through one side of the tube sheet (001), the hole (106) is communicated with the interior of the plate (002), and a hexagonal notch is provided at the end of the cross bar (205).

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