Bolt type pipe piece annular rapid assembling and connecting component

Abstract

The utility model relates to a bolt type pipe piece annular rapid assembling and connecting component which comprises a bolt female piece, a bolt male piece and a T-shaped bolt, the bolt female piece and the bolt male piece are fixed to longitudinal seam splicing faces of two shield pipe pieces adjacent in the annular direction respectively, and the T-shaped bolt is transversely installed on the bolt male piece. An inclined face groove is formed in one longitudinal side of the bolt female part, a wedge-shaped head is arranged at one transverse end of the T-shaped bolt, the wedge-shaped head is longitudinally inserted into the inclined face groove, the bolt female part and the bolt male part are connected in an inserted mode, and therefore the two annularly-adjacent shield segments are assembled into a whole. According to the utility model, mutual insertion and assembly are realized by utilizing a top splicing principle, the wedge-shaped head is aligned with the notch of the inclined plane groove, the segment on which the wedge-shaped head is positioned is longitudinally pushed, and the wedge-shaped head slides into the inclined plane groove, so that the assembly is completed, hand holes do not need to be prefabricated on the shield segment, the arrangement of bent bolts during annular connection is avoided, the quality of the component is more controllable, the operation is simpler, and the construction efficiency is improved. And the segment assembly precision and quality are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield segment assembly, in particular to a bolt-type segment circumferential rapid assembly connection component. Background Art

[0002] Using shield segments to construct subway tunnels offers the advantage of rapid construction. During assembly, the segments need to be connected to each other, typically using segment bolts. This involves pre-casting the segments with holes for bolt connections. After the segments are joined, they are fastened with segment bolts to complete the connection.

[0003] However, since the shield segments are arc-shaped structures, in order to ensure that adjacent segments can be connected to each other, the bolt connection holes need to have a certain curvature. Therefore, the matching segment bolts need to be processed strictly according to the designed curvature and precision. The processing requirements are high, and the threaded joints are prone to deformation. Manual installation is required, the operating efficiency is low, and the assembly accuracy and quality cannot be effectively guaranteed.

[0004] Therefore, it is necessary to propose a new structure to overcome the above-mentioned defects. Summary of the Invention

[0005] The utility model aims to provide a bolted segment circumferential quick assembly connection component to solve the problems of high processing requirements, easy deformation and low operating efficiency in the current use of arc segment bolts to assemble shield segments.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0007] A bolt-type segment circumferential quick assembly connection component, comprising a bolt mother component, a bolt male component, and a T-bolt. The bolt mother component and the bolt male component are respectively fixed to the longitudinal seam joint surfaces of two circumferentially adjacent shield segments, and the T-bolt is transversely mounted on the bolt male component.

[0008] A bevel groove is provided on the longitudinal side of the bolt mother part, and a wedge-shaped head is provided on the transverse end of the T-bolt. The wedge head is longitudinally inserted into the bevel groove, so that the bolt mother part and the bolt male part are plugged into each other, thereby assembling the two circumferentially adjacent shield segments into one.

[0009] Furthermore, a mother component threaded hole is provided on a lateral side of the bolt mother component, and an anchor bar is screwed into the mother component threaded hole and fixed to the longitudinal seam splicing surface of the shield segment through the anchor bar.

[0010] Furthermore, an open guide groove is provided on the other lateral side of the bolt mother component. The guide groove is longitudinally arranged and does not pass through, and is laterally connected to the bevel groove.

[0011] Further, the inclined groove is longitudinally arranged and not through, and one side of the inclined groove close to the guide groove is an inclined surface, and the inclined groove is gradually contracted from the groove opening to the inside, and the opening width of the guide groove is gradually reduced from the groove opening to the inside.

[0012] Further, the wedge-shaped head is matched with the inclined groove in shape, and one side of the wedge-shaped head corresponding to the side of the inclined surface of the guide groove is also an inclined surface.

[0013] Further, the bolt public member is provided with a public member threaded hole on one lateral side, and an anchor bar is screwed into the public member threaded hole and fixed to the longitudinal joint surface of the shield segment.

[0014] Further, the wedge-shaped head of the T-shaped bolt is provided with a screw rod on one side, the bolt public member is provided with a T-shaped bolt hole in the lateral direction, and the screw rod is inserted into the T-shaped bolt hole and fixed by a nut.

[0015] Further, the bolt public member is provided with a boss on one lateral side close to the wedge-shaped head, and the boss is annular and located at the outer periphery of the T-shaped bolt hole.

[0016] Further, the longitudinal section of the wedge-shaped head is square;

[0017] The longitudinal section of the screw rod close to the segment of the wedge-shaped head is square, and the longitudinal section of the rest part is circular, and correspondingly, the boss has a square hole, and the T-shaped bolt hole is a circular hole.

[0018] Further, the female threaded holes are arranged in pairs longitudinally and front and back on the bolt female member;

[0019] The public member threaded holes are arranged in pairs longitudinally and front and back on the bolt public member and located on both sides of the T-shaped bolt hole.

[0020] Compared with the prior art, the utility model has the advantages of the following:

[0021] The utility model discloses a bolt type segment ring quick assembling connecting component, bolt female members and bolt public members are arranged on two shield segments adjacent in the ring direction respectively, mutual plug-in assembly is utilized to the top joint principle, the wedge-shaped head of the T-shaped bolt on the bolt public member is aligned with the inclined groove opening of the bolt female member, and the segment where the wedge-shaped head is located is pushed longitudinally, when the wedge-shaped head slides into the inclined groove, the assembling is completed, the bolt female member is not needed to be prefabricated on the shield segment, and the setting of the curved bolt when being connected in the ring direction is avoided, the component quality is more controllable, the operation is simpler, and the segment assembling precision and quality are obviously improved. DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Figure 1 is the assembly plan view when the present application is just lapped.

[0024] Figure 2 is the assembly plan view when the present application is slid into place.

[0025] Figure 3 is the I-I sectional view in Figure 2

[0026] Figure 4 is the plan view of the bolt female part.

[0027] Figure 5 is the A view in Figure 4

[0028] Figure 6 is the B view in Figure 4

[0029] Figure 7 is the plan view of the bolt male part.

[0030] Figure 8 is the C view in Figure 7

[0031] Figure 9 is the D view in Figure 7

[0032] Figure 10 is the II-II sectional view in Figure 7

[0033] Figure 11 is the III-III sectional view in Figure 7

[0034] Figure 12 is the IV-IV sectional view in Figure 7

[0035] Figure 13 is the V-V sectional view in Figure 7

[0036] in the figure is:

[0037] ​​​​​​​​​1-bolt female part, 2-bolt male part, 3-steel bar, 4-female part longitudinal joint, 5-male part longitudinal joint, 6-T-shaped bolt;

[0038] 11-bevel groove, 12-female threaded hole, 13-guide groove;

[0039] 21-T-shaped bolt hole, 22-male threaded hole, 23- boss;

[0040] 61-wedge head, 62-nut, 63-screw rod. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0042] In the description of the present application, it should be understood that the terms "front", "back", "left", "right", "top", "bottom", "inner", "outer", "longitudinal", "transverse" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "setting" and the like should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the detailed description, Figure 1 In the detailed description, Figure 1 In the detailed description, the direction from left to right is defined as transverse, and the direction from top to bottom is defined as longitudinal.

[0045] The whole shield segment is prefabricated as an arc plate, and the operation during construction includes circumferential splicing and longitudinal splicing, the circumferential splicing has a longitudinal joint, and the longitudinal splicing has a circumferential joint. The bolt type segment circumferential quick splicing connecting member provided by the present application is used for splicing two circumferentially adjacent shield segments, and can realize quick splicing by longitudinal sliding, has high efficiency, and has high splicing precision.

[0046] Specifically, as Figure 1The component mainly includes three parts, namely the bolt mother part 1, the bolt male part 2 and the T-bolt 6. Among them, the bolt mother part 1 and the bolt male part 2 are respectively fixed on the longitudinal seam joint surface of two circumferentially adjacent shield segments, and the T-bolt 6 is transversely installed on the bolt male part 2. The longitudinal side of the bolt mother part 1 is provided with an inclined groove 11, and the transverse end of the T-bolt 6 has a wedge-shaped head 61, as shown in FIG. Figures 1-3 The wedge-shaped head 61 is longitudinally inserted into the bevel groove 11, so that the bolt female part 1 and the bolt male part 2 are plugged into each other, thereby assembling the two circumferentially adjacent shield segments into one.

[0047] like Figures 4-6 , a mother threaded hole 12 is provided on the horizontal left side of the bolt mother 1. The anchor bar 3 is screwed into the mother threaded hole 12 and fixed to the longitudinal seam joint surface of the shield segment through the anchor bar 3. An open guide groove 13 is provided on the horizontal right side of the bolt mother 1. The guide groove 13 is longitudinally arranged and does not pass through, and is connected to the inclined groove 11 laterally. The inclined groove 11 is longitudinally arranged and does not pass through. The side of the inclined groove 11 close to the guide groove 13 is an inclined surface, and the inclined groove 11 gradually shrinks inward from the groove mouth. The bolt mother 1 is cast, and the material can be selected from high-quality cast steel according to the size of the segment and the force requirements.

[0048] like Figure 7 The T-bolt 6 is constructed of a high-strength grade and includes a wedge-shaped head 61, a screw 63, and a nut 62. Its shape matches the beveled groove 11 of the bolt mother 1. The side of the wedge-shaped head 61 corresponding to the bevel of the guide groove 13 is also beveled. Specifically, the longitudinal cross-section of the wedge-shaped head 61 is square, facilitating height adjustment and positioning. The screw 63 is a cylindrical rod. In some embodiments, the bevel is preferably designed at 3.81°, which gradually reduces the width of the longitudinal seam of the segment. This allows the longitudinal seam waterproofing gasket to be gradually compressed during segment assembly, achieving a waterproof seal.

[0049] like Figures 7-9 , a male threaded hole 22 is provided on the right side of the bolt male part 2, and the anchor bar 3 is screwed into the male threaded hole 22 and fixed to the longitudinal seam joint surface of the shield segment through the anchor bar 3. One side of the wedge-shaped head 61 of the T-bolt 6 is a screw 63, and a transverse T-bolt hole 21 is provided on the bolt male part 2. The screw 63 is inserted into the T-bolt hole 21 and fixed by the nut 62. A boss 23 is provided on the transverse side of the bolt male part 2 close to the wedge-shaped head 61. The boss 23 is annular and located on the outer periphery of the T-bolt hole 21, which is equivalent to a countersunk hole. The longitudinal section of the wedge-shaped head 61 is square, which adapts to the groove shape of the bevel groove 11. As shown Figures 10-13 The longitudinal section of the screw rod 63 near the wedge-shaped head 61 is square, and the longitudinal section of the remaining portion is circular. Correspondingly, the boss 23, i.e., the countersunk hole, has a square hole for easy positioning, and the T-bolt hole 21 is a circular hole.

[0050] In some embodiments, the female threaded holes 12 are arranged in pairs longitudinally in front and back on the bolt female 1, the male threaded holes 22 are arranged in pairs longitudinally in front and back on the bolt male 2 and are located on both sides of the T-shaped bolt hole 21, and are matched with the corresponding number of anchor bars 3. Of course, the number of anchor bars 3 for fixing can also be increased according to needs.

[0051] In some embodiments, such as large-diameter shield tunnels, when the segment thickness is large, the type of segment circumferential connecting piece can also not be unique, the bolt female 1, the bolt male 2 and the T-shaped bolt 6 can be arranged in pairs in a double-headed form, so that the bending resistance of the segment longitudinal joint is stronger.

[0052] The assembling and connecting operation of the utility model does not need to reserve bolt hand holes on the shield segment, and the strength of the shield segment itself is ensured. When the shield machine assembles the segment, the wedge-shaped head 61 is aligned with the notch of the inclined groove 11, the segment where the wedge-shaped head 61 is located is pushed longitudinally, the wedge-shaped head 61 and the screw rod 63 are slid into the inclined groove 11 and the guide groove 13, manual operation is not needed, the installation precision is controllable, the construction cost of the segment is effectively reduced. Compared with the currently applied segment circumferential C and T type connecting pieces, the steel consumption is reduced by more than 50%, and the cost is greatly reduced.

[0053] The above application of specific examples is used to describe the utility model, which is only used to help understand the utility model and does not limit the utility model. According to the idea of the utility model, technical personnel in the technical field to which the utility model belongs can also make several simple deductions, deformations or substitutions.

Claims

1. A bolted segmental ring fast assembly connecting component, characterized in that: the component comprises a bolt female part (1), a bolt male part (2) and a T-shaped bolt (6), the bolt female part (1) and the bolt male part (2) are fixed on the longitudinal joint surface of two adjacent segments respectively, and the T-shaped bolt (6) is transversely installed on the bolt male part (2); one longitudinal side of the bolt female part (1) is provided with a bevel groove (11), and one transverse end of the T-shaped bolt (6) is provided with a wedge head (61), the wedge head (61) is longitudinally inserted into the bevel groove (11), so that the bolt female part (1) and the bolt male part (2) are inserted into each other, thereby assembling two adjacent segments into one.

2. The bolted segmental ring fast assembly connecting component according to claim 1, characterized in that: one transverse side of the bolt female part (1) is provided with a female threaded hole (12), an anchor bar (3) is screwed into the female threaded hole (12) and fixed to the longitudinal joint surface of the segment through the anchor bar (3).

3. The bolted segmental ring fast assembly connecting component according to claim 2, characterized in that: the other transverse side of the bolt female part (1) is provided with an open guide groove (13), the guide groove (13) is longitudinally arranged and not through, and transversely communicates with the bevel groove (11).

4. The bolted segmental ring fast assembly connecting component according to claim 3, characterized in that: the bevel groove (11) is longitudinally arranged and not through, one side of the bevel groove (11) near the guide groove (13) is a bevel, the bevel groove (11) gradually shrinks inward from the groove opening, and the opening width of the guide groove (13) gradually decreases inward from the groove opening.

5. The bolted segmental ring fast assembly connecting component according to claim 4, characterized in that: the wedge head (61) is adapted to the shape of the bevel groove (11), and one side of the wedge head (61) corresponding to the bevel of the guide groove (13) is also a bevel.

6. The bolted segmental ring fast assembly connecting component according to claim 5, characterized in that: one transverse side of the bolt male part (2) is provided with a male threaded hole (22), an anchor bar (3) is screwed into the male threaded hole (22) and fixed to the longitudinal joint surface of the segment through the anchor bar (3).

7. The bolted segmental ring fast assembly connecting component according to claim 6, characterized in that: one side of the wedge head (61) of the T-shaped bolt (6) is provided with a screw rod (63), the bolt male part (2) is provided with a transverse T-shaped bolt hole (21), the screw rod (63) is inserted into the T-shaped bolt hole (21) and fixed through a nut (62).

8. The bolted segmental ring fast assembly connecting component according to claim 7, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ The boss (23) is annular and located at the outer periphery of the T-shaped bolt hole (21).

9. The bolted segment connecting member according to claim 8, characterized in that: The longitudinal section of the wedge head (61) is square; The longitudinal section of the screw rod (63) near the segment of the wedge head (61) is square, and the longitudinal section of the rest is circular. Correspondingly, the boss (23) has a square hole, and the T-shaped bolt hole (21) is a circular hole.

10. The bolted segment connecting member according to claim 9, characterized in that: The female threaded holes (12) are arranged in pairs longitudinally front and back on the bolt female member (1); The male threaded holes (22) are arranged in pairs longitudinally front and back on the bolt male member (2) and located on both sides of the T-shaped bolt hole (21).

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