CN216198181U

CN216198181U - Subway shield tunnel longitudinal rigidity additional strengthening

Info

Publication number: CN216198181U
Application number: CN202122328634.8U
Authority: CN
Inventors: 唐志扬; 陆灵威; 张宇; 施博伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-05
Anticipated expiration: 2031-09-24

Abstract

The utility model provides a longitudinal rigidity reinforcing structure of a subway shield tunnel, which comprises a bottom base plate, an external supporting tube, a rectangular accommodating hole, a limiting groove, a locking lifting frame structure, a locking frame structure when being conveniently disassembled, a bottom baffle plate, a rotary driving frame structure, a bottom fixing block, a spherical clamping groove, a metal supporting ball, a micro motor, a driving gear, a top base plate and a rectangular inserting block, wherein the external supporting tube is welded at the middle position of the upper part of the bottom base plate; the rectangular receiving hole is formed in the middle of the inner side of the external supporting tube. The arrangement of the trapezoidal telescopic claw and the triangular locking clamping groove is beneficial to enabling the hollow lifting pipe to normally ascend at the outer side of the rectangular hollow pipe through the inclined arrangement of the outer side of the trapezoidal telescopic claw, and then the connection part of the hollow lifting pipe and the rectangular hollow pipe is locked through the matching of the upper plane of the trapezoidal telescopic claw and the inner side of the triangular locking clamping groove, so that the hollow lifting pipe is prevented from falling.

Description

Subway shield tunnel longitudinal rigidity additional strengthening

Technical Field

The utility model belongs to the technical field of rigidity reinforcement, and particularly relates to a longitudinal rigidity reinforcing structure of a subway shield tunnel.

Background

The subway shield is an important construction technology in urban subway construction, and is a construction method for underground excavation of tunnels under the ground. The subway shield tunneling machine is used for tunneling underground, the tunnel excavation and lining operation is safely carried out in the machine while the collapse of a soft foundation excavation surface is prevented or the excavation surface is kept stable, surrounding rocks around the shield shell and the segment support are used for preventing collapse into the tunnel, meanwhile, a cutting device is used for excavating soil in front of the excavation surface, the soil is transported out of the tunnel through an unearthing machine and is pushed in at the rear part by a jack in a pressurizing mode, and precast concrete segments are assembled to form a mechanical construction method of a tunnel structure.

But the longitudinal rigidity reinforcing structure of the existing subway shield tunnel also has the problems of uneven stress when the height of the supporting frame is adjusted, incapability of locking the lifting rod at any time and inconvenience in disassembling the device.

Therefore, the utility model of the longitudinal rigidity reinforcing structure of the subway shield tunnel is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a longitudinal rigidity reinforcing structure of a subway shield tunnel, which is realized by the following technical scheme:

a longitudinal rigidity reinforcing structure of a subway shield tunnel comprises a bottom base plate, an external supporting tube, a rectangular accommodating hole, a limiting groove, a locking lifting frame structure, a locking frame structure when the subway shield tunnel is conveniently disassembled, a bottom baffle plate, a rotary driving frame structure, a bottom fixing block, a spherical clamping groove, a metal supporting ball, a micro motor, a driving gear, a top base plate and a rectangular inserting block, wherein the external supporting tube is welded at the middle position of the upper part of the bottom base plate; the rectangular receiving hole is formed in the middle of the inner side of the external supporting tube; the limiting grooves are respectively arranged at the four corners of the inner side of the external supporting tube; the locking lifting frame structure is arranged at the upper part of the inner side of the external supporting tube; the locking frame structure is arranged at the lower part of the inner side of the locking lifting frame structure during convenient disassembly; the bottom baffle is inserted into the lower part of the inner side of the bottom base plate; the rotary driving frame structure is arranged at the upper part of the inner side of the external supporting tube; the bottom fixing block is welded at the upper part of the outer side of the outer supporting tube; the opening of the spherical clamping groove is upwards arranged at the upper part of the bottom fixing block; the metal supporting ball is placed at the upper part of the inner side of the spherical clamping groove; the micro motor is connected to the left side of the bottom fixing block through a bolt; the driving gear is connected to the upper part of the output shaft of the micro motor in a key way; the top base plate is placed at the upper part of the locking lifting frame structure; the rectangular insertion block is integrally arranged in the middle of the lower portion of the top base plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the arrangement of the trapezoidal telescopic claw and the triangular locking clamping groove is beneficial to enabling the hollow lifting pipe to normally rise on the outer side of the rectangular hollow pipe through the inclined arrangement of the outer side of the trapezoidal telescopic claw, and then the connection part of the hollow lifting pipe and the rectangular hollow pipe is locked through the matching of the upper plane of the trapezoidal telescopic claw and the inner side of the triangular locking clamping groove, so that the hollow lifting pipe is prevented from falling.

2. According to the utility model, the arrangement of the rectangular telescopic hole, the limiting baffle and the locking spring is beneficial to pushing the trapezoidal telescopic claw to move towards the left side and the right side respectively through the spring force of the locking spring, pushing the trapezoidal telescopic claw to be inserted into the inner side of the triangular locking clamping groove and tightly attached to the inner side of the triangular locking clamping groove, and increasing the locking effect on the joint of the hollow lifting pipe and the rectangular hollow pipe.

3. According to the utility model, the arrangement of the external supporting tube and the limiting groove is beneficial to limiting the hollow lifting tube through the sliding of the sliding gear rack on the inner side of the limiting groove, so that the hollow lifting tube is vertically lifted, and the hollow lifting tube is prevented from horizontally rotating on the inner side of the external supporting tube.

4. In the utility model, the arrangement of the bottom connecting seat and the bottom baffle is beneficial to taking the bottom connecting seat out of the inner side of the external supporting tube, and the bottom connecting seat and the hollow lifting tube are detached for maintenance, and meanwhile, when the device is integrally detached, the hollow lifting tube can be moved downwards.

5. According to the utility model, the arrangement of the connecting circular ring, the top inclined gear ring and the middle driving gear is beneficial to driving the top inclined gear ring to rotate through the connecting circular ring, and then the plurality of inner side lifting gears are driven to rotate simultaneously through the meshing of the top inclined gear ring and the middle driving gear, so that the uniform stress of the hollow lifting pipe during lifting is ensured.

6. According to the utility model, the arrangement of the rotating metal shaft, the inner lifting gear and the sliding gear rack is beneficial to enabling the middle driving gear to drive the inner lifting gear to rotate by rotating the metal shaft, and the hollow lifting pipe can stably ascend by matching with the sliding gear rack.

7. In the utility model, the arrangement of the bottom fixing block, the spherical clamping groove and the metal supporting ball is beneficial to supporting the position of the connecting circular ring, the connecting circular ring can be ensured to horizontally rotate outside the external supporting tube, and meanwhile, the metal supporting ball can also reduce the friction force at the connecting part.

8. According to the utility model, the arrangement of the micro motor, the driving gear and the outer gear ring is beneficial to enabling the micro motor to drive the connecting ring to rotate through the mutual meshing of the driving gear and the outer gear ring, so that the hollow lifting pipe is driven to automatically lift.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Figure 2 is a schematic structural view of the locking crane structure of the utility model.

Fig. 3 is a structural schematic diagram of the locking frame structure for easy disassembly of the utility model.

Fig. 4 is a schematic structural diagram of a rotary driving frame structure of the present invention.

In the figure:

1. a bottom bolster plate; 2. an outer support tube; 3. a rectangular receiving hole; 4. a limiting groove; 5. locking the lifting frame structure; 51. a hollow riser; 52. a rectangular through hole; 53. a triangular locking clamping groove; 54. sliding the gear rack; 6. a locking frame structure when in convenient disassembly; 61. a bottom connecting seat; 62. a rectangular hollow tube; 63. a rectangular telescopic hole; 64. a trapezoidal telescopic claw; 65. a limit baffle; 66. a locking spring; 7. a bottom baffle; 8. a rotary driving frame structure; 81. connecting the circular rings; 82. an outer gear ring; 83. a top inclined gear ring; 84. an intermediate drive gear; 85. rotating the metal shaft; 86. an inside elevating gear; 9. a bottom fixing block; 10. a spherical clamping groove; 11. a metal support ball; 12. a micro motor; 13. a driving gear; 14. a top backing plate; 15. rectangular plug-in blocks.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example (b):

as shown in the attached drawings 1 and 2, the longitudinal rigidity reinforcing structure of the subway shield tunnel comprises a bottom base plate 1, an external supporting tube 2, a rectangular accommodating hole 3, a limiting groove 4, a locking lifting frame structure 5, a locking frame structure 6 for convenient disassembly, a bottom baffle 7, a rotary driving frame structure 8, a bottom fixing block 9, a spherical clamping groove 10, a metal supporting ball 11, a micro motor 12, a driving gear 13, a top base plate 14 and a rectangular inserting block 15, wherein the external supporting tube 2 is welded at the middle position of the upper part of the bottom base plate 1; the rectangular accommodating hole 3 is formed in the middle position of the inner side of the external supporting tube 2; the limiting grooves 4 are respectively arranged at the four corners of the inner side of the external supporting tube 2; the locking crane structure 5 is arranged at the upper part of the inner side of the external support tube 2; the locking frame structure 6 is arranged at the lower part of the inner side of the locking lifting frame structure 5 during the convenient disassembly; the bottom baffle 7 is inserted at the lower part of the inner side of the bottom base plate 1; the rotary driving frame structure 8 is arranged at the upper part of the inner side of the external supporting tube 2; the bottom fixing block 9 is welded on the upper part of the outer side of the outer supporting tube 2; the opening of the spherical clamping groove 10 is upwards arranged at the upper part of the bottom fixing block 9; the metal supporting ball 11 is placed at the upper part of the inner side of the spherical clamping groove 10; the micro motor 12 is connected to the left side of the bottom fixing block 9 through a bolt; the driving gear 13 is connected with the upper part of the output shaft of the micro motor 12 in a key way; the top base plate 14 is placed at the upper part of the locking lifting frame structure 5; the rectangular insertion block 15 is integrally arranged in the middle of the lower part of the top cushion plate 14; the locking lifting frame structure 5 comprises a hollow lifting pipe 51, a rectangular through hole 52, a triangular locking clamping groove 53 and a sliding gear bar 54, wherein the rectangular through hole 52 is formed in the middle of the inner side of the hollow lifting pipe 51; the triangular locking clamping grooves 53 are respectively arranged at the left side and the right side inside the hollow lifting pipe 51; a plurality of sliding gear strips 54 are arranged and respectively welded at four corners of the outer side of the hollow lifting pipe 51; the parts inside the rotating drive frame structure 8 are engaged with the sliding rack gear 54, so that the sliding rack gear 54 drives the hollow elevator tube 51 to move upward inside the outer support tube 2 until the hollow elevator tube 51 is tightly pressed against the position to be reinforced.

In the above embodiment, as shown in fig. 3, specifically, the detachable locking frame structure 6 includes a bottom connecting seat 61, a rectangular hollow tube 62, a rectangular telescopic hole 63, a trapezoidal telescopic claw 64, a limiting baffle 65 and a locking spring 66, wherein the rectangular hollow tube 62 is welded at the middle position of the upper portion of the bottom connecting seat 61; the rectangular telescopic holes 63 are respectively formed in the left side and the right side of the inner part of the bottom connecting seat 61; the trapezoid telescopic claws 64 are inserted into the inner sides of the rectangular telescopic holes 63; the limiting baffle 65 is welded on one side of the trapezoidal telescopic claw 64 close to the inside of the rectangular hollow pipe 62; the locking spring 66 is welded on the inner side of the limit baffle 65; the locking spring 66 pushes the trapezoidal telescopic claw 64 to slide on the inner side of the rectangular telescopic hole 63 through the limiting baffle 65, so that the trapezoidal telescopic claw 64 is inserted into the triangular locking clamping groove 53 to lock the joint of the hollow lifting pipe 51 and the bottom connecting seat 61.

In the above embodiment, as shown in fig. 4, specifically, the rotary driving frame structure 8 includes a connecting ring 81, an outer gear ring 82, a top bevel gear ring 83, an intermediate driving gear 84, a rotary metal shaft 85 and an inner lifting gear 86, wherein the outer gear ring 82 is integrally disposed outside the connecting ring 81; the top inclined gear ring 83 is integrally arranged at the upper part of the connecting ring 81; the intermediate driving gears 84 are respectively arranged at the four corners of the upper part of the connecting ring 81; the rotating metal shaft 85 is arranged between the intermediate driving gear 84 and the inner lifting gear 86; the inner lifting gears 86 are respectively arranged at the left side and the right side of the upper part of the connecting ring 81; the connecting ring 81 rotates outside the outer support tube 2, and the connecting ring 81 rotates the inner elevating gear 86 by the cooperation of the intermediate driving gear 84 and the top inclined ring gear 83.

In the above embodiment, specifically, the lower portion of the hollow elevator tube 51 is inserted into the upper portion of the inner side of the rectangular receiving hole 3, and the sliding gear bar 54 is inserted into the inner side of the limiting groove 4, so as to perform a limiting function through cooperation.

In the above embodiment, specifically, the sliding gear rack 54 is provided in plural, and the sliding gear racks 54 in opposite positions are staggered with each other to ensure that the hollow elevator tube 51 moves upward.

In the above embodiment, specifically, the top shim plate 14 is disposed on the upper portion of the hollow elevator tube 51, and the rectangular insertion block 15 is inserted into the upper portion of the inner side of the rectangular through hole 52, so as to facilitate the removal of the top shim plate 14.

In the above embodiment, specifically, the upper portion of the rectangular hollow tube 62 is inserted into the lower portion of the inside of the rectangular through hole 52, and the lower portion of the bottom connecting seat 61 is bolted to the upper portion of the bottom baffle 7, so that the hollow elevator tube 51 and the rectangular hollow tube 62 can be easily detached.

In the above embodiment, specifically, the limiting baffles 65 are respectively disposed at the left and right sides inside the rectangular hollow tube 62, and one side of the trapezoidal telescopic claw 64 away from the rectangular hollow tube 62 is inserted into the inside of the triangular locking slot 53, so as to improve the locking effect of the device.

In the above embodiment, the left and right sides of the rotating metal shaft 85 are respectively connected to the inner side of the middle driving gear 84 and the inner side of the inner lifting gear 86, so as to drive the inner lifting gears 86 to rotate simultaneously.

In the above embodiment, specifically, the intermediate driving gears 84 are respectively disposed at four corners of the outer upper portion of the outer support tube 2, and the inner lifting gears 86 are disposed at the inner upper portion of the limiting groove 4.

In the above embodiment, specifically, the rotating metal shaft 85 is coupled to four corners of the inner upper portion of the rotating metal shaft 85, and the lower portion of the connecting ring 81 is tightly attached to the upper portion of the metal supporting ball 11.

In the above embodiment, specifically, the intermediate driving gear 84 and the top bevel gear ring 83 are meshed with each other, and the driving gear 13 is disposed on the left side of the outer gear ring 82 and meshed with the outer gear ring 82.

In the above embodiment, specifically, the inner lifting gears 86 are respectively disposed at four outer corners of the hollow lifting pipe 51, and the inner lifting gears 86 and the sliding gear bars 54 are engaged with each other.

Principle of operation

In the utility model, when in use, the device is placed at a position to be supported, the left side and the right side of the lower part of the bottom cushion plate 1 are supported by using the cushion blocks, then the micro motor 12 is electrified, the micro motor 12 drives the driving gear 13 to rotate, the connecting ring 81 is driven to rotate on the outer side of the outer supporting pipe 2 through the meshing of the driving gear 13 and the outer gear ring 82, the connecting ring 81 drives the inner lifting gear 86 to rotate through the matching of the middle driving gear 84 and the top inclined gear ring 83, the inner lifting gear 86 is meshed with the sliding gear strip 54, the sliding gear strip 54 drives the hollow lifting pipe 51 to move upwards on the inner side of the outer supporting pipe 2 until the hollow lifting pipe 51 is tightly pressed against the position to be reinforced, the hollow lifting pipe 51 slides upwards on the outer side of the bottom connecting seat 61 while moving upwards, the locking spring 66 pushes the trapezoidal telescopic claw 64 to slide on the inner side of the rectangular telescopic hole 63 through the limiting baffle 65, the trapezoidal telescopic claw 64 is inserted into the triangular locking clamping groove 53 to lock the joint of the hollow lifting pipe 51 and the bottom connecting seat 61, and when the hollow lifting pipe is detached, the bolt at the lower part of the bottom baffle 7 is detached, so that the hollow lifting pipe 51 moves downwards.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims

1. The longitudinal rigidity reinforcing structure of the subway shield tunnel is characterized by comprising a bottom base plate (1), an external supporting tube (2), a rectangular accommodating hole (3), a limiting groove (4), a locking lifting frame structure (5), a locking frame structure (6) convenient to disassemble, a bottom baffle (7), a rotary driving frame structure (8), a bottom fixing block (9), a spherical clamping groove (10), a metal supporting ball (11), a micro motor (12), a driving gear (13), a top base plate (14) and a rectangular inserting block (15), wherein the external supporting tube (2) is welded at the middle position of the upper part of the bottom base plate (1); the rectangular accommodating hole (3) is formed in the middle position of the inner side of the external supporting tube (2); the limiting grooves (4) are respectively arranged at the four corners of the inner side of the external supporting tube (2); the locking lifting frame structure (5) is arranged at the upper part of the inner side of the external support tube (2); the locking frame structure (6) is arranged at the lower part of the inner side of the locking lifting frame structure (5) during convenient disassembly; the bottom baffle (7) is inserted into the lower part of the inner side of the bottom base plate (1); the rotary driving frame structure (8) is arranged at the upper part of the inner side of the external supporting tube (2); the bottom fixing block (9) is welded at the upper part of the outer side of the outer supporting tube (2); the opening of the spherical clamping groove (10) is upwards arranged at the upper part of the bottom fixing block (9); the metal supporting ball (11) is arranged at the upper part of the inner side of the spherical clamping groove (10); the micro motor (12) is connected to the left side of the bottom fixing block (9) through a bolt; the driving gear (13) is connected to the upper part of an output shaft of the micro motor (12) in a key way; the top base plate (14) is placed at the upper part of the locking lifting frame structure (5); the rectangular insertion block (15) is integrally arranged in the middle of the lower part of the top base plate (14); the locking lifting frame structure (5) comprises a hollow lifting pipe (51), a rectangular through hole (52), a triangular locking clamping groove (53) and a sliding gear bar (54), wherein the rectangular through hole (52) is formed in the middle of the inner side of the hollow lifting pipe (51); the triangular locking clamping grooves (53) are respectively arranged at the left side and the right side inside the hollow lifting pipe (51); the sliding gear bars (54) are arranged in a plurality and are respectively welded at four corners of the outer side of the hollow lifting pipe (51).

2. The subway shield tunnel longitudinal rigidity reinforcing structure of claim 1, wherein said locking frame structure (6) comprises a bottom connecting base (61), a rectangular hollow tube (62), a rectangular telescopic hole (63), a trapezoidal telescopic claw (64), a limit baffle (65) and a locking spring (66), said rectangular hollow tube (62) is welded at the middle position of the upper part of the bottom connecting base (61); the rectangular telescopic holes (63) are respectively formed in the left side and the right side of the inner part of the bottom connecting seat (61); the trapezoid telescopic claw (64) is inserted into the inner side of the rectangular telescopic hole (63); the limiting baffle (65) is welded on one side of the trapezoidal telescopic claw (64) close to the interior of the rectangular hollow pipe (62); the locking spring (66) is welded on the inner side of the limit baffle (65).

3. The subway shield tunnel longitudinal rigidity reinforcing structure of claim 1, characterized in that said rotary driving frame structure (8) comprises a connecting ring (81), an outer gear ring (82), a top inclined gear ring (83), a middle driving gear (84), a rotary metal shaft (85) and an inner lifting gear (86), said outer gear ring (82) is integrally arranged on the outer side of the connecting ring (81); the top inclined gear ring (83) is integrally arranged at the upper part of the connecting ring (81); the middle driving gears (84) are respectively arranged at the four corners of the upper part of the connecting circular ring (81); the rotating metal shaft (85) is arranged between the intermediate driving gear (84) and the inner lifting gear (86); the inner lifting gears (86) are respectively arranged at the left side and the right side of the upper part of the connecting ring (81).

4. The longitudinal rigidity reinforcing structure of the subway shield tunnel according to claim 1, wherein the lower portion of said hollow elevating tube (51) is inserted into the upper portion of the inner side of said rectangular receiving hole (3), and said sliding gear rack (54) is inserted into the inner side of said limit groove (4).

5. The longitudinal rigidity reinforcing structure of the subway shield tunnel according to claim 1, wherein said sliding gear bars (54) are provided in plurality, and the sliding gear bars (54) at opposite positions are staggered with each other.

6. The longitudinal rigidity reinforcing structure of the subway shield tunnel according to claim 1, wherein said top plate (14) is disposed on the upper portion of the hollow elevating tube (51), and said rectangular insertion block (15) is inserted into the upper portion of the inner side of the rectangular through hole (52).

7. The longitudinal rigidity reinforcing structure of the subway shield tunnel according to claim 2, wherein the upper portion of said rectangular hollow tube (62) is inserted into the lower portion of the inner side of the rectangular through hole (52), and the lower portion of said bottom connecting base (61) is bolted to the upper portion of the bottom baffle (7).

8. The subway shield tunnel longitudinal rigidity reinforcing structure of claim 2, wherein said limit baffles (65) are respectively arranged at the left and right sides of the interior of the rectangular hollow pipe (62), and one side of said trapezoidal telescopic claw (64) far away from the rectangular hollow pipe (62) is inserted into the inner side of the triangular locking slot (53).