Pipe piece of pre-embedded pulling and connecting device
By installing a connecting device and an elastic pull-back device inside the segment body, the problem of unstable segment connection in the prior art is solved, and a stable connection and improved safety of segments in the same ring are achieved.
Patent Information
- Application Number
- CN202520766956.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-04-21
AI Technical Summary
In existing technologies, the tensioning steel plates of the tunnel segments apply force to the outside of the segments, resulting in poor fit with the curved segments, inability to fully conform, affecting the connection effect and occupying internal tunnel space.
A connection device, including a connecting rod and a rotating locking sleeve, is installed inside the segment body. It achieves a stable connection between segments in the same ring through the operating groove and through hole, and is equipped with an elastic pull-back device to improve connection stability and safety.
It improves the connection stability and safety between tunnel segments in the same ring, avoids space occupation, and enhances tunnel safety.
Smart Images
Figure CN223634716U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of tunnel equipment, in particular to a pipe segment with pre-embedded pulling device. BACKGROUND
[0002] The pipe segment is a main assembly component in the construction process of a shield machine, and serves as the innermost barrier of a tunnel to bear the resistance to soil pressure, underground water pressure and some special loads.
[0003] In the prior art, the pipe segments are connected in a ring, and the pipe segments in the same ring are connected through pulling steel sheets and bolts to achieve the effect of pulling and fastening the pipe segments. However, since the pulling steel sheets apply force to the outside of the pipe segments, and the pipe segments have an arc structure, the matching degree of the pulling steel sheets and the pipe segments is not high, and the pulling steel sheets cannot be fully attached to the inner wall of the pipe segments, which affects the pulling effect and occupies the internal space of the tunnel. CONTENT OF THE UTILITY MODEL
[0004] The pipe segment with pre-embedded pulling device provided by the embodiment of the present application improves the stability of the connection between the pipe segments in the same ring, thereby improving the safety.
[0005] To achieve the foregoing purpose, the present application adopts the following technical solutions:
[0006] A pipe segment with pre-embedded pulling device, characterized in that it comprises
[0007] a pipe segment body, opposite ends of the pipe segment body are respectively provided with at least one group of operation grooves, and a through hole is arranged on the A side wall of the operation groove;
[0008] a pulling device arranged in the pipe segment body, the pulling device comprises a connecting rod and a rotating lock sleeve connected to the connecting rod, one end of the connecting rod away from the rotating lock sleeve is fixedly provided with a clamping head, one end of the connecting rod fixedly provided with the clamping head is arranged in the operation groove of one of the pipe segment bodies, and one end connected with the rotating lock sleeve is arranged in the operation groove of the other pipe segment body;
[0009] an elastic pulling-back device connected to the pipe segment body.
[0010] In some optional embodiments, one group of the operation grooves comprises at least two operation grooves.
[0011] In some optional embodiments, the inner side wall of the operation groove is provided with a metal plate, and the through hole penetrates through the metal plate.
[0012] In some optional embodiments, the opposite ends of the pipe segment body are further provided with accommodating grooves, the inner side wall of the accommodating groove is also provided with the metal plate, and the elastic pulling-back device can be arranged in the accommodating groove.
[0013] In some optional embodiments, the groove bottom of the accommodating groove is provided with a connecting buckle.
[0014] In some optional embodiments, the elastic return device comprises a cable assembly, an elastic return assembly connected to the cable assembly, and a hook ring connected to the elastic return assembly, opposite ends of the cable assembly are connected with the elastic return assembly, and the hook ring is connected to the side of the elastic return assembly away from the cable assembly.
[0015] In some optional embodiments, the elastic return assembly comprises a housing, a fixed pull rod fixed to the housing, and a movable pull rod telescopically connected to the housing, and a tension spring is connected between the fixed pull rod and the movable pull rod.
[0016] In some optional embodiments, the fixed pull rod penetrates through the housing, a connecting head is arranged on the end of the fixed pull rod extending into the housing, a limiting connecting head is arranged on the end of the movable pull rod extending into the housing, and opposite ends of the tension spring are respectively connected to the connecting head on the fixed pull rod and the limiting connecting head on the movable pull rod.
[0017] In some optional embodiments, the limiting connecting head comprises a connecting piece and a limiting piece fixed to the connecting piece, and one end of the movable pull rod is fixed to the limiting piece.
[0018] In some optional embodiments, a connecting ring is further arranged on the end of the movable pull rod extending out of the housing, and the hook ring is connected to the connecting ring.
[0019] The embedded pulling and connecting device pipe segment provided by the present application has the following beneficial effects:
[0020] In the technical scheme adopted by the present application, the pipe segment body is internally provided with a pulling and connecting device, an elastic return device is connected to the pipe segment body, opposite ends of the pipe segment body are respectively provided with at least one set of operation grooves, a through hole is arranged on the A side wall of the operation groove, the pulling and connecting device comprises a connecting rod and a rotating lock sleeve connected to the connecting rod, a clamping head is fixed to the end of the connecting rod away from the rotating lock sleeve, the end of the connecting rod fixed with the clamping head is arranged inside the operation groove on one pipe segment body, and the end connected with the rotating lock sleeve is arranged inside the operation groove on another pipe segment body, so that the stability of the connection between the same ring tunnel pipe segments is improved, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:
[0022] Figure 1is an assembled structure diagram of a pipe segment of a pre-embedded pulling and connecting device according to the present application;
[0023] Figure 2 is Figure 1 is an enlarged view at circle A shown in the figure;
[0024] Figure 3 is a perspective view of an elastic pulling-back device in a pipe segment of a pre-embedded pulling and connecting device according to the present application;
[0025] Figure 4 is a perspective view of a pipe segment of a pre-embedded pulling and connecting device according to the present application;
[0026] Figure 5 is Figure 4 is an enlarged view at circle B shown in the figure;
[0027] Figure 6 is a sectional structure view of an elastic pulling-back device in a pipe segment of a pre-embedded pulling and connecting device according to the present application.
[0028] Reference signs:
[0029] 10, pipe segment body; 10A, operation groove; 10B, through hole; 10C, containing groove; 11, metal plate; 12, connecting buckle;
[0030] 20, pulling and connecting device; 21, connecting rod; 211, clamping head; 22, rotating lock sleeve;
[0031] 30, elastic pulling-back device; 31, pulling cable assembly; 32, elastic pulling-back assembly; 321, shell; 322, fixed pulling rod; 3221, connecting head; 323, movable pulling rod; 3231, limiting connecting head; 32311, connecting sheet; 32312, limiting sheet; 3232, connecting ring; 324, tension spring; 33, hook ring. DETAILED DESCRIPTION
[0032] The specific embodiments of the present application will be described below in conjunction with the accompanying drawings and examples, and through the content recorded in the present description, the skilled in the art can clearly and completely understand the technical solutions of the present application, the technical problems solved and the technical effects produced. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, in order to facilitate the description, only the parts related to the present application are shown in the drawings.
[0033] It should be noted that the structure, proportion, size and the like shown in the drawings of the specification are only used in conjunction with the content described in the specification for the understanding and reading of those skilled in the art, and do not have technical significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, which does not affect the effect and purpose that can be achieved by the present application, shall fall within the scope of the technical content disclosed by the present application.
[0034] The terms "first", "second", "the", and the like similar words do not represent a quantity limitation, and can represent a single or plural number. The terms "include", "contain", "have" and any variants thereof involved in the present application are intended to cover non-exclusive inclusion; for example, a process, method, system, product or device containing a series of steps or modules is not limited to the listed steps or units, but can also include steps or units not listed, or can also include other steps or units inherent to the process, method, product or device. The terms "connection", "connection", "coupling" and the like similar words in the present application are not limited to physical or mechanical connection, but can also include direct or indirect electrical connection.
[0035] It should also be noted that the longitudinal section corresponding to the embodiment of the present application can be a front view direction section, the transverse section can be a right view direction section, and the horizontal section can be an upper view direction section.
[0036] In addition, the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0037] Reference Figure 1 , Figure 2 and Figure 3 , Figure 1 is an assembly structure schematic diagram of a pipe piece of a pre-buried pull connection device, Figure 2 is Figure 1 the enlarged view at circle A shown in the figure, Figure 3 is a perspective view of an elastic pullback device in a pipe piece of a pre-buried pull connection device. As shown in Figure 1 , Figure 2 and Figure 3 , a pipe piece of a pre-buried pull connection device, comprising a pipe piece body 10, a pull connection device 20 arranged inside the pipe piece body 10, and an elastic pullback device 30 connected to the pipe piece body 10.
[0038] Reference Figure 4 and Figure 5 , Figure 4 is a perspective view of a pipe piece of a pre-buried pull connection device, Figure 5 isFigure 4 the enlarged view at circle B shown. As Figure 4 and Figure 5 As shown, the pipe body 10 is provided with at least one set of operation slots 10A at opposite ends, and each set of operation slots 10A includes at least two operation slots 10A. The inner side wall of the operation slot 10A is provided with a metal plate 11 as the inner lining of the operation slot 10A. Meanwhile, a through hole 10B is provided on the A side wall of the operation slot 10A and penetrates the metal plate 11 to communicate the accommodation space inside the operation slot 10A. The opposite ends of the pipe body 10 are also provided with an accommodation slot 10C, and the elastic return device 30 can be placed inside the accommodation slot 10C. The bottom of the accommodation slot 10C is provided with a connecting buckle 12, and the inner side wall of the accommodation slot 10C is also provided with a metal plate 11 as the inner lining of the accommodation slot 10C. Here, the operation slot 10A is provided to realize the connection between the pipe bodies 10 in the same ring by using tools to operate the pull connection device 20 through the operation slot 10A during the installation process. In addition, the connecting buckle 12 provided on the bottom of the accommodation slot 10C is matched with the connecting buckle 12 provided on the bottom of the accommodation slot 10C in the pipe body 10 in the same ring and the elastic return device 30 to realize the connection between the elastic return device 30 and the pipe body 10.
[0039] With reference to Figure 4 , the pull connection device 20 includes a connecting rod 21 and a rotating lock sleeve 22 connected to the connecting rod 21. The end of the connecting rod 21 away from the rotating lock sleeve 22 is fixed with a clamp head 211. During use, the end of the connecting rod 21 fixed with the clamp head 211 is placed inside the operation slot 10A of one pipe body 10, and the end connected with the rotating lock sleeve 22 is placed inside the operation slot 10A of another pipe body 10. Specifically, by means of an external tool, which includes but is not limited to an adjustable wrench, the relative movement between the connecting rod 21 fixed with the clamp head 211 and the rotating lock sleeve 22 is caused, so that the adjacent pipe bodies 10 in the same ring are fully connected under the action of the clamp head 211 and the rotating lock sleeve 22, thereby improving the stability of the connection between the pipe bodies 10 in the same ring and the safety.
[0040] With reference to Figure 3The elastic pulling device 30 comprises a cable assembly 31, an elastic pulling assembly 32 connected to the cable assembly 31, and a hook ring 33 connected to the elastic pulling assembly 32. The opposite ends of the cable assembly 31 are connected with the elastic pulling assembly 32. The hook ring 33 is connected to the side of the elastic pulling assembly 32 away from the cable assembly 31. Further, the hook ring 33 is also connected with the segment body 10. Here, the connection between the hook ring 33 and the segment body 10 realizes that, in the process of on-site installation of the segment body 10, and in the process of daily use after the installation of the segment body 10, when some of the segment bodies 10 fall off or drop, and the remaining segment bodies 10 do not fall off or drop, the elastic pulling device 30 pulls the segment body 10 to avoid the segment body 10 from directly falling on the ground, reduces unnecessary loss, and ensures the safety of the operator.
[0041] Reference Figure 6 , Figure 6 is a sectional view of an elastic pulling device in a segment of a pre-buried pulling device. As shown in Figure 6 , the elastic pulling assembly 32 comprises a shell 321, a fixed pull rod 322 fixed to the shell 321, and a movable pull rod 323 telescopically connected to the shell 321. A tension spring 324 is connected between the fixed pull rod 322 and the movable pull rod 323. The fixed pull rod 322 penetrates the shell 321, and a connecting head 3221 is arranged on the end of the fixed pull rod 322 extending into the shell 321. A connecting ring 3232 is also arranged on the end of the fixed pull rod 322 extending out of the shell 321. A limiting connecting head 3231 is arranged on the end of the movable pull rod 323 extending into the shell 321. The opposite ends of the tension spring 324 are connected to the connecting head 3221 on the fixed pull rod 322 and the limiting connecting head 3231 on the movable pull rod 323, respectively. The limiting connecting head 3231 comprises a connecting piece 32311 and a limiting piece 32312 fixed to the connecting piece 32311. One end of the movable pull rod 323 is fixed to the limiting piece 32312. The connecting ring 3232 is also arranged on the end of the movable pull rod 323 extending out of the shell 321. The hook ring 33 is connected to the connecting ring 3232. Here, the tension spring 324 is arranged to provide elastic pulling force when the elastic pulling device 30 works, to avoid rigid pulling between the segment body 10 and the elastic pulling device 30, and to prevent secondary damage to the segment body 10. In addition, the limiting connecting head 3231 is arranged to limit the stretching distance of the tension spring 324 during work, to avoid overloading and damage of the tension spring 324.
[0042] Here, the inside of the segment body 10 is provided with a pulling device 20, an elastic return device 30 is connected to the segment body 10, and the opposite ends of the segment body 10 are respectively provided with at least one set of operation grooves 10A, a through hole 10B is arranged on the A side wall of the operation groove 10A, the pulling device 20 comprises a connecting rod 21 and a rotating lock sleeve 22 connected to the connecting rod 21, a clamping head 211 is fixed to one end of the connecting rod 21 away from the rotating lock sleeve 22, one end of the connecting rod 21 fixed with the clamping head 211 is arranged in the operation groove 10A on one segment body 10, and one end connected with the rotating lock sleeve 22 is arranged in the operation groove 10A on another segment body 10, so that the stability and safety during the connection between the segment bodies 10 in the same ring are improved.
[0043] In order to facilitate understanding, the working principle of the present application is further described as follows: the segment with the embedded pulling device is transported to the construction position by a transportation tool, the same ring can be connected by three segment bodies 10 or four segment bodies 10 according to the needs, the pulling device 20 prearranged in the segment body 10 is operated through the operation groove 10A by means of a tool, and finally the adjacent segment bodies 10 in the same ring are clamped by the pulling device 20, that is, the stable connection between the segment bodies 10 in the same ring is completed, the problem that the matching degree of the segment bodies in the same ring of the existing connection mode is not high and the segment bodies cannot be fully attached is effectively avoided, the safety is effectively improved, and under the action of the elastic return device 30, the safety of the segment body 10 during use is further improved.
[0044] Although the present application has been described and illustrated with reference to specific embodiments thereof, these descriptions and illustrations are not limiting. It is understood by those skilled in the art that various changes can be made and equivalents substituted without departing from the true spirit and scope of the present application as defined by the appended claims. The drawings are not necessarily to scale. There can be differences between the technology in this disclosure and the actual implementation due to manufacturing processes and the like. There can be other embodiments of the present application not specifically described. The specification and drawings should be considered illustrative only and not restrictive of the disclosure. Modifications can be made to adapt a particular situation, material, composition of matter, method or process to the objective, spirit and scope of the present application. All such modifications are intended to be within the scope of the claims appended hereto. Although methods disclosed herein have been described with reference to particular sequences for performing certain operations, it is understood that these operations can be combined or split among the various sequences, or reordered while remaining within the teachings of the present application. Therefore, unless specifically indicated, the order and grouping of operations are not limitations of the present application.
Claims
1. A segment with pre-embedded pullout device, characterized in that, The utility model relates to a kind of pipe segment body (10), the opposite two ends of the pipe segment body (10) are respectively provided with at least one group of operating slot (10A), operating slot (10A) is provided with through hole (10B) on A side wall, and the utility model relates to a kind of pull connection device (20) being arranged in the pipe segment body (10) inside, the pull connection device (20) includes connecting rod (21) and rotating lock sleeve (22) being connected to the connecting rod (21), the one end of the connecting rod (21) is fixed with chuck (211) away from rotating lock sleeve (22), and the one end of the connecting rod (21) is fixed with chuck (211) is placed in the inside of operating slot (10A) on one pipe segment body (10), and the one end being connected with rotating lock sleeve (22) is placed in the inside of operating slot (10A) on another pipe segment body (10). The utility model relates to a kind of elastic back-pulling device (30) being connected to the pipe segment body (10). One group of operating slot (10A) includes at least two operating slots (10A). The inner side wall of operating slot (10A) is provided with metal plate (11), and the through hole (10B) penetrates the metal plate (11).
2. A segment of a pre-buried pull- tie device according to claim 1, characterized in that The opposite two ends of the pipe segment body (10) are also provided with accommodating slot (10C), and the inner side wall of the accommodating slot (10C) is also provided with the metal plate (11), and the elastic back-pulling device (30) can be placed in the inside of the accommodating slot (10C).
3. A segment of a pre-buried pull- tie device according to claim 2, wherein, The groove bottom of the accommodating slot (10C) is provided with connecting buckle (12).
4. A segment of a pre-buried pull- tie device according to claim 3, wherein, The elastic back-pulling device (30) includes cable assembly (31), elastic back-pulling assembly (32) being connected to the cable assembly (31) and carabiner (33) being connected to the elastic back-pulling assembly (32), the opposite two ends of the cable assembly (31) are connected with the elastic back-pulling assembly (32), and the carabiner (33) is connected to the side of the elastic back-pulling assembly (32) away from the cable assembly (31).
5. A segment of a pre-buried pull tie device according to claim 4, wherein, The elastic back-pulling assembly (32) includes shell (321), fixed pull rod (322) being fixed to the shell (321), and movable pull rod (323) being telescopically connected to the shell (321), and stretch spring (324) is connected between the fixed pull rod (322) and the movable pull rod (323).
6. The pre-buried pull tie device segment of claim 1, wherein, The fixed pull rod (322) penetrates the shell (321), and the one end of the fixed pull rod (322) extending into the shell (321) is provided with connecting head (3221), the one end of the movable pull rod (323) extending into the shell (321) is provided with limit connecting head (3231), and the opposite two ends of the stretch spring (324) are respectively connected to the connecting head (3221) on the fixed pull rod (322) and the limit connecting head (3231) on the movable pull rod (323).
7. A segment of a pre-buried pull tie device according to claim 6, wherein, The limit connecting head (3231) includes connecting sheet (32311) and limit sheet (32312) being fixed to the connecting sheet (32311), and one end of the movable pull rod (323) is fixed to the limit sheet (32312).
8. A segment of a pre-buried pull tie device according to claim 7, wherein, 9. A segment of a pre-buried pull tie device according to claim 8, wherein, 10. A segment of a pre-buried pull tie device according to claim 9, wherein, The active pull rod (323) extends out of one end of the shell (321) and is provided with a connecting ring (3232), and the hook ring (33) is connected to the connecting ring (3232).