Combined shield segment cushion block
The internal and external figure eight clips and plug-in block structure of the combined shield segment spacer solves the uneven force problem caused by traditional spacers, realizes flexible adjustment of the spacer height and force area, and improves the stability and safety of segment storage during shield construction.
Patent Information
- Application Number
- CN202423241160.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional single plastic segment spacers can easily lead to insufficient height or uneven force between two adjacent segments during shield construction, damaging the segment concrete structure.
A combined shield segment spacer is designed, which adopts an inner and outer eight-shaped clip and plug-in block structure to realize the left and right and up and down combination of the spacer, expand the force-bearing area and flexibly adjust the height. It is molded in one piece using high-strength plastic material.
It improves the stability and adaptability of the pad, prevents uneven force, ensures the stability and safety of the pipe segment storage, has the characteristics of high strength, corrosion resistance, and easy handling, which improves storage efficiency.
Smart Images

Figure CN223424045U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shield construction pipe segment storage, in particular to a combined shield pipe segment pad. Background Art
[0002] During shield tunnel construction, prefabricated segments, the basic units of the tunnel structure, need to be stored and temporarily placed at the construction site. To ensure the stability of the segments, spacers are typically used as support structures. Traditional spacers are mostly single plastic or wooden spacers.
[0003] However, due to the limited height and force-bearing width of single plastic pipe segment spacers, when a forklift is used to transport the pipe segments, it is easy to cause insufficient height or uneven force between two adjacent pipe segments, thereby causing damage to the concrete structure of the pipe segment. Utility Model Content
[0004] The utility model provides a combined shield segment spacer, which solves the problem that transmission spacers easily lead to insufficient height or uneven force between two adjacent segments. The height and force width of the spacer can be flexibly adjusted to meet the storage and placement requirements of different segments.
[0005] A combined shield segment spacer comprises a square spacer unit, wherein a first plug-in plate and a second plug-in plate are provided on the left side of the spacer unit along the height direction, wherein the first and second plug-in plates form an inner-female buckle on the horizontal plane, and a third plug-in plate and a fourth plug-in plate are provided on the right side of the spacer unit along the height direction, wherein the third and fourth plug-in plates form an outer-female buckle on the horizontal plane. When two adjacent spacer units are assembled left and right, the outer-female buckle is inserted into the inner-female buckle for connection;
[0006] The front side and the rear side of the cushion block monomer are both provided with square plug-in interfaces. When two adjacent cushion block monomers are assembled up and down, the two plug-in interfaces are aligned up and down and connected through the plug-in blocks.
[0007] Furthermore, the heights of the first plug-in board, the second plug-in board, the third plug-in board and the fourth plug-in board are equal to the height of the spacer block.
[0008] Furthermore, the bottom surface of the plug-in interface is flush with the bottom surface of the spacer block, and the top surface of the plug-in interface is lower than the top surface of the spacer block.
[0009] Furthermore, the plug-in block is an L-shaped plug-in plate.
[0010] Furthermore, a hollow cavity is provided on the top surface of the cushion block unit, and a plurality of cross-distributed ribs are provided in the hollow cavity.
[0011] Furthermore, the cushion block unit is made of plastic injection molding.
[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:
[0013] 1. When two adjacent pad blocks are assembled from left to right, the outer eight-shaped buckles are inserted into the inner eight-shaped buckles for connection; the left and right nested combination design can expand the force-bearing area of the entire pad block to prevent the pad block from being damaged by uneven force;
[0014] When two adjacent spacer blocks are assembled up and down, the two plug-in interfaces are aligned up and down and connected through the plug-in blocks. The up and down nested combination design enables the spacer block height to be flexibly adjusted to meet the storage and placement requirements of different segments.
[0015] 2. The plug-in block is inserted into two plug-in interfaces to realize the upper and lower assembly of the pad unit. The structure ensures the stability of the assembled pad and avoids the pad dislocation during use;
[0016] 3. A hollow cavity is provided on the top surface of the gasket block, and a number of cross-distributed ribs are provided in the hollow cavity, which gives the segment gasket a high strength and compressive resistance;
[0017] 4. The pad unit is made of high-strength plastic material through one-piece injection molding, which makes the pad light, corrosion-resistant and wear-resistant, making it easy to carry and use for a long time;
[0018] 5. The utility model ensures that the combined pads can be connected firmly and without dislocation, forming a combined pad with doubled height or width. The combined pad not only improves the stability of the segments during storage, but also has the advantages of light weight, corrosion resistance, easy handling and installation, etc., which greatly improves the storage efficiency and safety of the shield segments. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a three-dimensional schematic diagram of the cushion block unit of the present invention;
[0020] Figure 2 This is a top view of the cushion block unit of the present invention;
[0021] Figure 3 This is a schematic diagram of the left and right assembly of the cushion block unit of the utility model;
[0022] Figure 4 This is a schematic diagram of the upper and lower assembly of the cushion block unit of the utility model;
[0023] Figure 5 This is a schematic diagram of the plug-in block of the utility model;
[0024] In the figure: 1. Spacer block unit, 2. No. 1 plug-in board, 3. No. 2 plug-in board, 4. No. 3 plug-in board, 5. No. 4 plug-in board, 6. Inner-toe buckle, 7. Outer-toe buckle, 8. Plug-in interface, 9. Plug-in block. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0026] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.
[0027] like Figures 1-2 As shown, this embodiment discloses a combined shield segment spacer, including a square spacer unit 1, the top surface of the spacer unit 1 is processed with a hollow cavity, and a number of cross-distributed ribs are arranged in the hollow cavity, which can ensure strength while reducing the dead weight. A No. 1 plug-in plate 2 and a No. 2 plug-in plate 3 are arranged on the left side of the spacer unit 1 along the height direction, and the No. 1 plug-in plate 2 and the No. 2 plug-in plate 3 form an inner eight-shaped buckle 6 on the horizontal plane. A No. 3 plug-in plate 4 and a No. 4 plug-in plate 5 are arranged on the right side of the spacer unit 1 along the height direction, and the No. 3 plug-in plate 4 and the No. 4 plug-in plate 5 form an outer eight-shaped buckle 7 on the horizontal plane. The heights of the No. 1 plug-in plate 2, the No. 2 plug-in plate 3, the No. 3 plug-in plate 4 and the No. 4 plug-in plate 5 are equal to the height of the spacer unit 1. As shown Figure 3 As shown, when two adjacent spacer block units 1 are assembled left and right, the outer toe buckle 7 is inserted into the inner toe buckle 6 for connection.
[0028] A square plug-in port 8 is provided on the front and rear sides of the pad block unit 1 near the bottom. The bottom surface of the plug-in port 8 is flush with the bottom surface of the pad block unit 1, and the top surface of the plug-in port 8 is lower than the top surface of the pad block unit 1. Figures 4-5 As shown, when two adjacent cushion block units 1 are assembled and aligned, the two adjacent upper and lower plug-in interfaces 8 are just aligned. An L-shaped plug-in board is prepared to serve as a plug-in block 9. The two plug-in interfaces 8 are aligned up and down and connected through the plug-in block 9.
[0029] In this embodiment, the No. 1 plug-in board 2, the No. 2 plug-in board 3, the No. 3 plug-in board 4, the No. 4 plug-in board 5 and the plug port 8 are all made of a pad unit 1 by one-piece injection molding of high-strength plastic. Not only is the manufacturing cost low, but it is also light, corrosion-resistant and wear-resistant, making it easy to carry and use for a long time.
[0030] In actual use, to meet the storage requirements of the pipe segments, the design of the spacer block 1 not only allows for single-unit use, but also supports a variety of combinations to suit different usage scenarios. Spacer block combinations can be divided into two basic forms: top-down and left-right. In the top-down combination, two adjacent spacer blocks 1 are assembled top-to-bottom, with the two plug-in ports 8 aligned vertically and connected via the plug-in block 9. This nested design creates a stable vertical stack, allowing the spacer block height to be flexibly adjusted to accommodate the storage and placement requirements of different pipe segments. In the left-right combination, two adjacent spacer blocks 1 are assembled left-to-right, with the outer-shaped buckle 7 inserted into the inner-shaped buckle to connect. This nested design expands the overall load-bearing area of the spacer block to prevent damage from uneven load. Both types of combined pipe segment spacer blocks utilize an interlocking structural design, ensuring the stability of the combined spacer blocks. Furthermore, the height and load-bearing area of the combined spacer blocks can be flexibly adjusted according to actual needs to meet the storage requirements of pipe segments of different specifications. This modular design not only improves space utilization but also enhances flexibility and adaptability to storage needs.
Claims
1. A combined shield segment spacer, characterized in that: The invention comprises a square spacer block unit, wherein a first plug-in plate and a second plug-in plate are provided on the left side of the spacer block unit along the height direction, and the first plug-in plate and the second plug-in plate form an inner-eight-shaped buckle on the horizontal plane; a third plug-in plate and a fourth plug-in plate are provided on the right side of the spacer block unit along the height direction, and the third plug-in plate and the fourth plug-in plate form an outer-eight-shaped buckle on the horizontal plane. When two adjacent spacer blocks are assembled left and right, the outer-eight-shaped buckle is inserted into the inner-eight-shaped buckle for connection; The front side and the rear side of the cushion block monomer are both provided with square plug-in interfaces. When two adjacent cushion block monomers are assembled up and down, the two plug-in interfaces are aligned up and down and connected through the plug-in blocks.
2. The combined shield segment spacer according to claim 1, characterized in that: The heights of the first plug-in board, the second plug-in board, the third plug-in board and the fourth plug-in board are equal to the height of the spacer block unit.
3. The combined shield segment spacer according to claim 1, characterized in that: The bottom surface of the plug-in port is flush with the bottom surface of the spacer block, and the top surface of the plug-in port is lower than the top surface of the spacer block.
4. The combined shield segment spacer according to claim 3, characterized in that: The plug-in block is an L-shaped plug-in plate.
5. The combined shield segment spacer according to claim 1, characterized in that: A hollow cavity is provided on the top surface of the cushion block unit, and a plurality of cross-distributed ribs are provided in the hollow cavity.
6. The combined shield segment spacer according to any one of claims 1 to 5, characterized in that: The cushion block unit is made of plastic injection molding.