Shield segment carrying protection device
By designing a shield pipe sheet handling and protection device suitable for the arc contact of shield pipe sheets, including rubber sleeves, fasteners and elastic gaskets, the problems of damage and safety hazards during the handling process are solved, and the effect of reducing the damage rate and improving construction safety is achieved.
Patent Information
- Application Number
- CN202421818731.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In shield tunnel construction, the pipe sheet is prone to crushing and breaking edges due to the small contact area between the fork and the pipe sheet and the large pressure during the handling process, which affects the molding quality. In addition, the traditional protective sleeves are prone to slip on rainy days, posing safety hazards.
A shield pipe sheet handling protection device is designed, including a pair of rubber sleeves, fasteners and elastic gaskets. The support section of the rubber sleeve is laid with inclined elastic gaskets, and the fastener is used to lock the forks and adapt to the arc contact of the shield pipe sheet.
It effectively protects the contact parts between the pipe sheet and the fork, reduces the damage rate of the pipe sheet, improves the quality of the molded tunnel, and improves construction safety by increasing the contact surface and using rubber materials.
Smart Images
Figure CN222922856U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of subway shield tunnel construction, in particular to a shield segment handling and protecting device. Background Technique
[0002] Compared with the traditional mine tunneling method, the shield tunnel has multiple technical advantages. It is very difficult to carry out excavation construction in the area with weak strata by the traditional manual mine tunneling method. If the shield tunneling construction technology is adopted, through reasonable transformation of the shield machine structure, it can be adapted to excavate and drive in poor strata such as cobblestone layer, sand layer and silty clay layer. The shield construction process mainly consists of four parts: segment pouring production, segment self-waterproof installation, shield tunneling and segment assembly. In the construction, segment handling is an important step interspersed among various processes. However, in the process of segment handling, the quality problem of segment extrusion and breakage often occurs. Therefore, it is necessary to develop a device that can effectively protect the segment during the handling process.
[0003] The forklift handling and protecting device on the traditional market is a rigid polyurethane square strip structure, which has good performance in handling materials with a flat contact surface. However, in the process of handling shield segments, since the contact surface between the forklift fork and the segment is an arc surface, the contact area between the traditional protective sleeve and the segment during handling is small, and the pressure is large, resulting in extrusion and breakage of the segment edge, which has an adverse impact on the forming quality of the shield tunnel. During the on-site handling of segments, the phenomenon of extrusion and breakage between the segment and the forklift fork often occurs, resulting in segment breakage, which has a certain impact on the shield construction. At the same time, during the handling process, there is a slipping phenomenon between the rigid polyurethane sleeve and the segment in rainy seasons, which also poses a safety hazard to the use of the equipment.
[0004] The above information disclosed in the background art is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Content of the Utility Model
[0005] The purpose of the utility model is to provide a shield segment handling and protecting device to avoid breakage of shield segments and improve safety.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A shield segment handling and protecting device of the utility model includes:
[0008] A pair of rubber sleeves, which are arranged in parallel and the interval distance is adapted to the distance between a pair of forklift forks for handling shield segments. The rubber sleeve includes a supporting section for supporting the shield segment and a connecting section extending upward from one end of the supporting section;
[0009] A buckle member, which is arranged on the connecting section to lock the forklift fork;
[0010] A pair of elastic gaskets are laid on the supporting section. The elastic gaskets have inclined supporting surfaces for supporting the shield segment, and the supporting surface of one elastic gasket faces the supporting surface of the other elastic gasket.
[0011] In the described shield segment handling and protecting device, the supporting surface is a curved surface adapted to the contact surface of the shield segment.
[0012] In the described shield segment handling and protecting device, the rubber sleeve is of a hollow structure.
[0013] In the described shield segment handling and protecting device, the supporting section is of a hollow cuboid structure.
[0014] In the described shield segment handling and protecting device, the connecting section is perpendicular to the supporting section.
[0015] In the described shield segment handling and protecting device, the connecting section is of a plate-like structure.
[0016] In the described shield segment handling and protecting device, the top of the plate-like structure extends horizontally to form a releasable buckle.
[0017] In the described shield segment handling and protecting device, an adjustable-length connecting rod is provided between the pair of rubber sleeves.
[0018] In the described shield segment handling and protecting device, the cross-section of the elastic gasket is a right-angled trapezoid.
[0019] In the described shield segment handling and protecting device, the shield segment handling and protecting device is of a symmetric structure.
[0020] In the above technical solution, a shield segment handling and protecting device provided by the present utility model has the following beneficial effects: By installing elastic gaskets such as tetrafluoro rubber gaskets, the shield segment handling and protecting device effectively protects the concrete surface at the contact part between the segment and the forklift fork during the handling process. In the actual on-site application, the breakage rate of the segments is effectively reduced during the process of forklift handling the segments, thereby reducing the segment repair construction and improving the quality of the formed tunnel. In terms of equipment safety, by increasing the contact surface and using rubber materials to enhance the friction between the forklift fork and the segment, the risk of segment detachment is reduced, and the construction safety is improved. The structure is stable, the turnover is strong, the applicability is strong, and the degree of optimization is high. Description of the Drawings
[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.
[0022] Figure 1 It is a schematic three-dimensional structure diagram of the shield segment handling and protection device of the present utility model.
[0023] Figure 2 It is a schematic side view structure diagram of the shield segment handling and protection device of the present utility model.
[0024] Figure 3 It is a schematic front view of the shield segment handling and protection device of the present utility model. Detailed implementation manners
[0025] To make the purposes, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0027] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model.
[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.
[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0032] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the drawings.
[0033] As Figures 1-3 shown, in one embodiment, a shield segment handling and protection device of the present utility model includes
[0034] A pair of rubber sleeves 5, which are arranged in parallel and spaced at a distance adapted to the spacing between a pair of forklift forks 1 for carrying the shield segment 3. The rubber sleeve 5 includes a supporting section 6 for supporting the shield segment 3 and a connecting section 7 extending upward from one end of the supporting section 6;
[0035] A buckle 2, which is arranged on the connecting section 7 to lock the forklift fork 1;
[0036] A pair of elastic gaskets 4, which are laid on the supporting section 6. The elastic gasket 4 has an inclined supporting surface for supporting the shield segment 3, and the supporting surface of one elastic gasket 4 faces the supporting surface of the other elastic gasket 4.
[0037] In a preferred embodiment of the shield segment handling protection device described above, the supporting surface is a curved surface adapted to the contact surface of the shield segment 3.
[0038] In a preferred embodiment of the shield segment handling protection device described above, the rubber sleeve 5 is of a hollow structure.
[0039] In a preferred embodiment of the shield segment handling protection device described above, the supporting section 6 is of a hollow cuboid structure.
[0040] In a preferred embodiment of the shield segment handling protection device described above, the connecting section 7 is perpendicular to the supporting section 6.
[0041] In a preferred embodiment of the shield segment handling protection device described above, the connecting section 7 is of a plate-like structure.
[0042] In a preferred embodiment of the shield segment handling protection device described above, the top of the plate-like structure extends horizontally to form an unlockable buckle 2.
[0043] In a preferred embodiment of the shield segment handling protection device described above, an adjustable-length connecting rod is provided between the pair of rubber sleeves 5.
[0044] In a preferred embodiment of the shield segment handling protection device described above, the cross-section of the elastic gasket 4 is a right trapezoid.
[0045] In a preferred embodiment of the shield segment handling protection device described above, the shield segment handling protection device is of a symmetric structure.
[0046] In one embodiment, a shield segment handling protection device is provided with a layer of tetrafluoro rubber gasket that fits the curved surface of the segment by hot melt welding on the contact surface with the shield segment 3, avoiding damage to the protection sleeve caused by long-term concentrated force at the corners of the forklift protection sleeve and the segment, and preventing extrusion damage to the segment. At the same time, the rubber material can effectively hold the segment during handling, preventing the segment from slipping during the movement of the forklift. The buckle 2 at the tail of the protection sleeve can be effectively connected to the forklift fork 1 to prevent the segment protection sleeve from coming off.
[0047] In one embodiment, before taking the shield segment 3, install this protection device on the forklift fork 1 and securely install the tail buckle 2 to the forklift fork 1. Before picking up the shield segment 3, adjust the distance between the forklift forks 1 to ensure that the elastic gasket 4 such as the tetrafluoro rubber gasket on the upper part of the rubber sleeve 5 can effectively fit the arc surface of the segment. Pick up the shield segment 3 to the designated position, put down the shield segment 3 and retract the forklift forks 1. Before the forklift stops operating, disassemble the protection device and clean it for storage in the warehouse.
[0048] Finally, it should be noted that the described embodiments are only a part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.
[0049] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.
Claims
1. A shield segment handling and protection device, characterized in that: These include, A pair of rubber sleeves, which are arranged in parallel and spaced apart at a distance adapted to the spacing between a pair of forks used to carry shield segments, the rubber sleeves comprising a supporting section for supporting the shield segments and a connecting section extending upward from one end of the supporting section; A buckle, which is provided on the connecting section to lock the fork; A pair of elastic gaskets are laid on the supporting section, wherein the elastic gaskets have inclined supporting surfaces for supporting shield segments, wherein the supporting surface of one elastic gasket faces the supporting surface of the other elastic gasket.
2. A shield segment handling and protection device according to claim 1, characterized in that: The supporting surface is a curved surface adapted to the contact surface of the shield segment.
3. A shield segment handling and protection device according to claim 1, characterized in that: The rubber sleeve is a hollow structure.
4. A shield segment handling and protection device according to claim 1, characterized in that: The supporting section is a hollow rectangular parallelepiped structure.
5. The shield segment handling and protection device according to claim 1 is characterized in that: The connecting section is perpendicular to the supporting section.
6. A shield segment handling and protection device according to claim 1, characterized in that: The connecting section is a plate-shaped structure.
7. A shield segment handling and protection device according to claim 6, characterized in that: The top of the plate-like structure extends horizontally to form an unlockable buckle.
8. The shield segment handling and protection device according to claim 1 is characterized in that: A connecting rod with adjustable length is arranged between the pair of rubber sleeves.
9. The shield segment handling and protection device according to claim 1, characterized in that: The cross section of the elastic gasket is a right-angle trapezoid.
10. The shield segment handling and protection device according to claim 1, characterized in that: The shield segment handling and protection device has a symmetrical structure.