Temporary cover plate mounting structure of steel pipe sheet

Abstract

The utility model relates to a temporary cover plate mounting structure of a steel pipe sheet. The temporary cover plate is arranged above the steel pipe sheet, the first connecting pieces are arranged on the face, right facing the temporary cover plate, of the steel pipe sheet at intervals, and the second connecting pieces are arranged on the face, right facing the steel pipe sheet, of the temporary cover plate. The fixed ends of the two groups of bolt rapid fixing assemblies are sleeved on the end surfaces of the two sides of the temporary cover plate in the length direction, and the bolt ends simultaneously penetrate through the plurality of first connecting pieces and the plurality of second connecting pieces to connect the temporary cover plate with the steel pipe sheet; the plug pin end of the plug pin rapid fixing assembly simultaneously penetrates through all the first connecting pieces and the second connecting pieces which are attached to each other, then the fixing end is fixedly connected with the temporary cover plate, and therefore connection is achieved, disassembly can be achieved only by loosening the connection between the fixing end and the temporary cover plate, and disassembly is convenient. And fastening pieces between the first connecting piece and the second connecting piece are not needed one by one, so that the disassembly and assembly speed is more effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of steel pipe segments, in particular to a temporary cover plate installation structure of the steel pipe segments. Background Art

[0002] The shield method is a common method for tunnel construction. It is widely used in municipal tunnels, railway subways, and water supply and drainage projects. As the diameter of rail transit tunnels gradually increases, the outer diameter of shield segments gradually increases from 6m to 9m, and the segment assembly machine has also changed from a lifting arm to a vacuum suction cup. Unlike a lifting arm, a vacuum suction cup needs to be vacuumed on a large flat surface. The lifting arm holes originally reserved in the steel pipe segment can no longer meet the needs of on-site segment assembly. Since the suction cup area almost covers the entire segment, and the inner arc surface of the steel segment is a compartment, a temporary cover plate needs to be covered as the suction surface of the suction cup. The temporary cover plate is often welded to the segment. During the segment assembly process, the temporary cover plate needs to be cut off to facilitate subsequent construction. This is time-consuming and wastes materials. Welding and cutting will also damage the steel segment body.

[0003] Prior art 202310546077.8 discloses a shield steel segment rapid assembly auxiliary device and method. Although it solves the above-mentioned problems, it is still necessary to connect the first connecting member and the second connecting member with a plurality of bolts, and disassembly is still troublesome and time-consuming. Utility Model Content

[0004] The utility model aims to provide a temporary cover plate installation structure for a steel pipe segment in order to overcome the deficiencies of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a temporary cover plate installation structure for a steel pipe segment, comprising a steel pipe segment, a temporary cover plate arranged above the steel pipe segment and having the same size and shape as the steel pipe segment, a plurality of first connecting members arranged at intervals on both sides of the length direction of the steel pipe segment facing the temporary cover plate, a plurality of second connecting members arranged on both sides of the length direction of the temporary cover plate facing the steel pipe segment and in contact with the inner side of the first connecting member, and two sets of fast-fixing components with fixed ends sleeved on both side end surfaces of the temporary cover plate in the length direction and with the bolt ends simultaneously penetrating through the plurality of first connecting members and the plurality of second connecting members to connect the temporary cover plate to the steel pipe segment; The two groups of the quick-fixing components of the latch only need to fix one end that is sleeved on the temporary cover; the two groups of the quick-fixing components of the latch both include an inverted L-shaped fixing plate, a slot arranged on one horizontal end of the fixing plate for inserting one end face of the temporary cover, a plurality of avoidance openings arranged at the joint between the slot and the bottom surface of the temporary cover for avoiding a plurality of first connecting members and a plurality of second connecting members, a plurality of first limit pins arranged on a side of the vertical end of the fixing plate facing the plurality of first connecting members and the second connecting members for simultaneously penetrating a plurality of first connecting members and a plurality of second connecting members, and a fastener arranged in the middle of the top surface of the horizontal end of the fixing plate for connecting and fixing the fixing plate and the temporary cover plate to each other.

[0006] Preferably, a long groove is provided in the middle of the top surface of the horizontal end of the fixed plate, and the long groove is placed along the length direction of the horizontal end of the fixed plate; a limit plate is provided in the long groove; a plurality of second limit pins for penetrating the fixed plate and the temporary cover plate are vertically provided at the joint between the limit plate and the bottom surface of the long groove; the fastener is connected to the middle of the top surface of the limit plate to fix the limit plate, the fixed plate and the temporary cover plate together.

[0007] Preferably, the fastener is a bolt.

[0008] Preferably, the first connecting members and the second connecting members are square steels or angle steels.

[0009] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0010] The utility model uses a latch end of a latch quick fixing assembly to simultaneously penetrate all the first connecting members and the second connecting members that fit together, and then fixes the fixed end to a temporary cover plate to achieve connection. The utility model can be disassembled by simply loosening the connection between the fixed end and the temporary cover plate, without the need to tighten the fixing members between the first connecting members and the second connecting members one by one, thereby more effectively improving the disassembly and assembly speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0012] Attached Figure 1It is a side structural schematic diagram of the temporary cover plate installation structure of the steel pipe segment according to the utility model;

[0013] Attached Figure 2 It is a schematic diagram of a partial cross-sectional structure of an end face of a temporary cover plate installation structure of a steel pipe segment according to the utility model;

[0014] Attached Figure 3 It is a cross-sectional structural schematic diagram of the bolt quick fixing assembly of the temporary cover plate installation structure of the steel pipe segment described in the utility model;

[0015] Attached Figure 4 It is a schematic diagram of the top view of the temporary cover plate installation structure of the steel pipe segment described in the utility model.

[0016] Among them: 1. Steel pipe segment; 2. Temporary cover plate; 3. First connecting piece; 4. Second connecting piece; 5. Latch quick fixing assembly; 51. Fixing plate; 52. Slot; 53. Avoidance; 54. First limit latch; 55. Fastener; 6. Groove; 7. Second limit latch; 8. Limit plate. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Attached Figure 1-4 The temporary cover plate installation structure of the steel pipe segment described in the utility model comprises a steel pipe segment 1, a temporary cover plate 2 arranged above the steel pipe segment 1 and having the same size and shape as the steel pipe segment 1, a plurality of first connecting members 3 arranged at intervals on both sides of the length direction of the side of the steel pipe segment 1 facing the temporary cover plate 2, a plurality of second connecting members 4 arranged on both sides of the length direction of the side of the temporary cover plate 2 facing the steel pipe segment 1 and in contact with the inner side of the first connecting member 3, and two groups of fastening pin fastening components 5 with fixed ends sleeved on both side end surfaces of the temporary cover plate 2 in the length direction and with the pin ends simultaneously penetrating the plurality of first connecting members 3 and the plurality of second connecting members 4 to connect the temporary cover plate 2 to the steel pipe segment 1; the two groups of fastening pin fastening components 5 only need to be Just fix one end that is sleeved on the temporary cover 2; the two groups of the said quick-fixing pin components 5 include an inverted L-shaped fixing plate 51, a slot 52 arranged on the horizontal end of the fixing plate 51 for inserting one side end face of the temporary cover 2, a plurality of avoidance openings 53 arranged at the joint between the slot 52 and the bottom surface of the temporary cover 2 for avoiding a plurality of first connecting members 3 and a plurality of second connecting members 4, a plurality of first limit pins 54 arranged on the side of the vertical end of the fixing plate 51 facing the plurality of first connecting members 3 and the second connecting members 4 for simultaneously penetrating a plurality of first connecting members 3 and the second connecting members 4, and a fastener 55 arranged in the middle of the top surface of the horizontal end of the fixing plate 51 for connecting and fixing the fixing plate 51 and the temporary cover 2 to each other.

[0019] Furthermore, a long groove 6 is provided in the middle of the top surface of the horizontal end of the fixing plate 51, and the long groove 6 is placed along the length direction of the horizontal end of the fixing plate 51; a limiting plate 8 is provided in the long groove 6; a plurality of second limiting pins 7 for penetrating the fixing plate 51 and the temporary cover plate 2 are vertically provided at the joint between the limiting plate 8 and the bottom surface of the long groove 6; the fastener 55 is connected to the middle of the top surface of the limiting plate 8 to fix the limiting plate 8, the fixing plate 51 and the temporary cover plate 2 together, so as to reduce the force pressure on the fastener.

[0020] Furthermore, the fastener 55 is a bolt to improve connection stability.

[0021] Furthermore, some of the first connecting members 3 and the second connecting members 4 are made of square steel or angle steel, which increases the service life.

[0022] When in use: during installation, first place the temporary cover plate 2 on the top surface of the steel pipe segment 1, and then insert the second connecting pieces 4 on both sides of the bottom into the first connecting pieces 3 on both sides of the top surface of the steel pipe segment 1 so that the second connecting pieces 4 and the first connecting pieces 3 fit each other and limit the position, and then put the slot 52 of the fixing plate 51 on the end cover surfaces on both sides in the length direction of the temporary cover plate 2, and then the first limiting pin 54 penetrates the second connecting piece 4 and the first connecting piece 3, thereby limiting the upward and downward movement of the temporary cover plate 2, and then insert the limiting plate 8 and the second limiting pin 7 into the groove 6 on the top surface of the fixing plate 51, and then the second limiting pin 7 penetrates the temporary cover plate 2 and the fixing plate 51. The horizontal end of the fixed plate 51 is fixed, and then the limit plate 8, the fixed plate 51 and the temporary cover plate 2 are connected together by bolts. Since the bolts cooperate with the limit plate 8 and the second limit pin 7 to limit the fixed plate 51 on the temporary cover plate 2, the first limit pin 54 of the fixed plate 51 and the first connecting member 3 cooperate to limit the up and down movement of the temporary cover plate 2, and the first connecting member 3 limits the left and right movement of the temporary cover plate 2. Therefore, the temporary cover plate 2 and the steel pipe segment 1 are connected to each other. When disassembly is required, you only need to loosen and remove the bolts to remove the fixed plate 51, and then the temporary cover plate 2 is separated from the steel pipe segment 1, which greatly improves the disassembly and assembly efficiency.

Claims

1. A temporary cover plate installation structure for a steel pipe segment, characterized in that: The invention comprises a steel pipe segment, a temporary cover plate which is arranged above the steel pipe segment and has the same size and shape as the steel pipe segment, a plurality of first connecting members which are arranged at intervals on both sides of the length direction of the steel pipe segment facing the temporary cover plate, a plurality of second connecting members which are arranged on both sides of the length direction of the temporary cover plate facing the steel pipe segment and are in contact with the inner side of the first connecting member, and two sets of fast-fixing components with bolts whose fixed ends are sleeved on the end surfaces of both sides of the length direction of the temporary cover plate and whose bolt ends simultaneously penetrate the plurality of first connecting members and the plurality of second connecting members to connect the temporary cover plate and the steel pipe segment to each other; the two sets of fast-fixing components with bolts only need to be sleeved on the end surfaces of both sides of the temporary cover plate and the bolt ends simultaneously penetrate the plurality of first connecting members and the plurality of second connecting members to connect the temporary cover plate and the steel pipe segment to each other; One end of the temporary cover plate can be fixed; the two groups of the quick-fixing pin components include an inverted L-shaped fixing plate, a slot arranged on the horizontal end of the fixing plate for inserting one end face of the temporary cover plate, a plurality of avoidance openings arranged at the joint between the slot and the bottom surface of the temporary cover plate for avoiding a plurality of first connecting members and a plurality of second connecting members, a plurality of first limit pins arranged on the side of the vertical end of the fixing plate facing the plurality of first connecting members and the second connecting members for simultaneously penetrating a plurality of first connecting members and a plurality of second connecting members, and a fastener arranged in the middle of the top surface of the horizontal end of the fixing plate for connecting and fixing the fixing plate and the temporary cover plate to each other.

2. The temporary cover plate installation structure of the steel pipe segment according to claim 1 is characterized in that: A long groove is arranged in the middle of the top surface of the horizontal end of the fixing plate, and the long groove is placed along the length direction of the horizontal end of the fixing plate; a limit plate is arranged in the long groove; a plurality of second limit pins for penetrating the fixing plate and the temporary cover plate are vertically arranged at the joint between the limit plate and the bottom surface of the long groove; the fastener is connected to the middle of the top surface of the limit plate to fix the limit plate, the fixing plate and the temporary cover plate together.

3. The temporary cover plate installation structure of the steel pipe segment according to claim 2 is characterized in that: The fastener is a bolt.

4. The temporary cover plate installation structure of the steel pipe segment according to claim 1 is characterized in that: The first connecting members and the second connecting members are square steels or angle steels.

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