CN212027801U - Novel duct piece longitudinal connector - Google Patents
Novel duct piece longitudinal connector Download PDFInfo
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- CN212027801U CN212027801U CN201922277080.6U CN201922277080U CN212027801U CN 212027801 U CN212027801 U CN 212027801U CN 201922277080 U CN201922277080 U CN 201922277080U CN 212027801 U CN212027801 U CN 212027801U
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Abstract
A novel duct piece longitudinal connector comprises two embedded parts and a connecting rod piece; the two embedded parts are respectively sleeved and connected with the two ends of the connecting rod piece in a threaded manner, and the spindle body structure is formed in the middle of the connecting rod piece; the embedded part is of a tubular structure with an opening at the front end, the inner wall of the embedded part is provided with internal threads, and the outer wall of the embedded part is provided with a plurality of retaining threads and at least two anti-rotation reinforcing ribs; external threads are arranged at both ends of the connecting rod piece; the front section and the rear section of the spindle body structure are both provided with conical surfaces, and the diameters of the two ends of the spindle body structure are smaller than the diameter of the middle part of the spindle body structure. Compared with the prior art, the utility model discloses it is more reliable, stable to vertically the connection of two sections of jurisdiction on to have high withdrawal resistance, high bending resistance, because the part is less, consequently the assembly is more convenient, can effectively improve the efficiency of construction.
Description
Technical Field
The utility model relates to a coupling assembling, concretely relates to a coupling assembling that is used for pre-buried in concrete pipe piece to be used for the adjacent section of jurisdiction of longitudinal connection in subway construction.
Background
The segment is a main assembly component for shield construction, is the innermost barrier of the tunnel and plays a role in resisting soil layer pressure, underground water pressure and some special loads. The segment is a permanent lining structure of the shield tunnel, and the quality of the segment is directly related to the overall quality and safety of the tunnel, so that the waterproof performance and the durability of the tunnel are affected.
In the prior art, the longitudinal connection of the segments has the following problems: firstly, the connection construction difficulty of longitudinally adjacent pipe sheets is high; secondly, the connection stability of adjacent duct pieces in the longitudinal direction is difficult to be reliably ensured; thirdly, too many parts of the equipment for connection are inconvenient to assemble.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a novel section of jurisdiction longitudinal connector.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a novel segment longitudinal connector; comprises two embedded parts and a connecting rod piece; the two embedded parts are respectively sleeved at two ends of the connecting rod piece and are in threaded connection and positioning;
the main body of the embedded part is a tubular structure with an open front end and a closed rear end, internal threads are formed in the inner wall of the tubular structure, a plurality of retaining threads and at least two anti-rotation reinforcing ribs are arranged on the outer wall of the tubular structure, the retaining threads are arranged in parallel at intervals in the axial direction, and the anti-rotation reinforcing ribs are arranged at intervals in the circumferential direction;
the main body of the connecting rod piece is a rod-shaped body, and external threads are arranged at two ends of the connecting rod piece and are respectively in threaded connection with the two embedded parts; a spindle body structure is formed in the middle of the connecting rod piece; the front section and the rear section of the spindle body structure are both provided with conical surfaces, and the diameters of the two ends of the spindle body structure are smaller than the diameter of the middle part of the spindle body structure.
The relevant content in the above technical solution is explained as follows:
1. in the scheme, each retaining thread is used for limiting the embedded part to axially displace relative to the segment, and each anti-rotation reinforcing rib is used for limiting the embedded part to rotate relative to the segment.
2. In the scheme, the diameter of the stopping thread at the front end of the embedded part is larger than that of the stopping thread at the rear end of the embedded part, so that a taper is formed, and the rear end of the embedded part is embedded in the duct piece, so that the taper enables the embedded part to be more stably and reliably connected with the duct piece.
3. In the above scheme, the anti-rotation reinforcing ribs are uniformly distributed on the embedded part at equal angular intervals so as to improve the anti-rotation effect.
4. In the scheme, the metal inner core is arranged in the main body of the connecting rod piece along the axial direction of the main body, and is used for improving the structural strength of the connecting rod piece and resisting bending and pulling; the material of the metal inner core can be iron or stainless steel.
5. In the above scheme, both ends of the connecting rod piece are provided with a taper.
6. In the above scheme, the two ends of the connecting rod piece comprise three sections, the two ends of the connecting rod piece are respectively provided with an inner section, a middle section and an outer section from the middle part of the connecting rod piece to the outside in sequence in the axial direction, the three sections are respectively provided with external threads, the diameter of the inner section is larger than that of the middle section, and the diameter of the middle section is larger than that of the outer section. By means of the step-shaped design, the pulling resistance of the connecting rod piece can be improved, and the connecting stability is enhanced.
7. In the above scheme, the spindle body structure is provided with a plurality of anti-rotation reinforcing ribs, and the anti-rotation reinforcing ribs are circumferentially arranged at intervals; and a plurality of anti-rotation grooves are also arranged, and each anti-rotation groove is arranged between the two anti-rotation reinforcing ribs.
8. In the scheme, the front section conical surface and the rear end conical surface of the spindle body structure are respectively arranged corresponding to the connecting surfaces of two adjacent segments, and the connecting surfaces of the segments are provided with grooves; the main body of the embedded part is embedded in the pipe piece, the front end of the embedded part is positioned at the bottom of the groove, and the shape of the groove is matched with the conical surface of the spindle body structure, so that seamless connection of two adjacent pipe pieces is guaranteed.
The utility model discloses a theory of operation and advantage as follows:
the utility model relates to a novel duct piece longitudinal connector, which comprises two embedded parts and a connecting rod piece; the two embedded parts are respectively sleeved and connected with the two ends of the connecting rod piece in a threaded manner, and the spindle body structure is formed in the middle of the connecting rod piece; the embedded part is of a tubular structure with an opening at the front end, the inner wall of the embedded part is provided with internal threads, and the outer wall of the embedded part is provided with a plurality of retaining threads and at least two anti-rotation reinforcing ribs; external threads are arranged at both ends of the connecting rod piece; the front section and the rear section of the spindle body structure are both provided with conical surfaces, and the diameters of the two ends of the spindle body structure are smaller than the diameter of the middle part of the spindle body structure.
Compared with the prior art, the utility model discloses it is more reliable, stable to vertically the connection of two sections of jurisdiction on to have high withdrawal resistance, high bending resistance, because the part is less, consequently the assembly is more convenient, can effectively improve the efficiency of construction.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a connecting rod according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embedded part according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a partial cross-sectional structure of an embedded part according to an embodiment of the present invention;
fig. 5 is a schematic bottom view of an embedded part according to an embodiment of the present invention.
In the above drawings: 1. embedding parts; 1a, a first embedded part; 1b, a second embedded part; 2. connecting rod pieces; 3. a spindle structure; 4. opening the mouth; 5. an internal thread; 6. stopping the screw thread; 7. anti-rotation reinforcing ribs; 8. an external thread; 9. a metal inner core; 10. an inner section; 11. a middle section; 12. an outer section; 13. an anti-rotation groove; 14. a conical surface; 15. prevent changeing the strengthening rib.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): referring to the attached drawings 1-5, the novel duct piece longitudinal connector comprises two embedded parts 1 and a connecting rod piece 2; the two embedded parts 1 are respectively sleeved at two ends of the connecting rod piece 2 and are in threaded connection and positioning.
As shown in fig. 2, the main body of the connecting rod 2 is a rod-shaped body, and both ends of the connecting rod 2 are provided with external threads 8 for being respectively in threaded connection with the two embedded parts 1; the connecting rod 2 is formed with a spindle structure 3 in the middle. The front section and the rear section of the spindle body structure 3 are both formed with conical surfaces, and the diameters of the two ends forming the spindle body structure 3 are smaller than the diameter of the middle part thereof.
A metal inner core 9 is arranged in the main body of the connecting rod piece 2 along the axial direction of the main body, and is used for improving the structural strength of the connecting rod piece 2 and resisting bending and pulling; the material of the metal inner core 9 can be iron or stainless steel or other alloys.
As shown in fig. 3 to 5, the main body of the embedded part 1 is a tubular structure with an opening at the front end 4 and a closed rear end, the inner wall of the tubular structure is provided with internal threads 5, the outer wall of the tubular structure is provided with a plurality of retaining threads 6 and at least two anti-rotation reinforcing ribs 7, wherein the retaining threads 6 are axially arranged in parallel at intervals and used for limiting the embedded part 1 to make axial displacement relative to the duct piece; the anti-rotation reinforcing ribs 7 are arranged at equal angle intervals in the circumferential direction and used for limiting the embedded part 1 to rotate relative to the duct piece.
The diameter of the stopping thread 6 at the front end of the embedded part 1 is larger than that of the stopping thread 6 at the rear end of the embedded part, so that a taper is formed, the rear end of the embedded part 1 is embedded into the duct piece, and the taper enables the connection between the embedded part 1 and the duct piece to be more stable and reliable.
As shown in fig. 2, two ends of the connecting rod 2 each include three sections, an inner section 10, a middle section 11 and an outer section 12 are sequentially arranged from the middle of the connecting rod 2 to the outside in the axial direction, the three sections are provided with external threads 8, the diameter of the inner section 10 is larger than that of the middle section 11, and the diameter of the middle section 11 is larger than that of the outer section 12. Correspondingly, the inner wall of the embedded part 1 is also designed in a three-section mode, and the anti-pulling capacity of the connecting rod piece 2 can be improved and the connecting stability can be enhanced through the step-shaped design.
The front section conical surface 14 and the rear end conical surface 14 of the spindle body structure 3 are respectively arranged corresponding to the connecting surfaces of two adjacent segments (not shown), and the connecting surfaces of the segments are provided with grooves; the main body of the embedded part 1 is embedded in the pipe piece, the front end of the embedded part 1 is positioned at the bottom of the groove, and the shape of the groove is matched with the conical surface 14 of the spindle body structure 3, so that seamless connection of two adjacent pipe pieces is guaranteed.
A plurality of anti-rotation reinforcing ribs 15 are arranged on the spindle body structure 3, and the anti-rotation reinforcing ribs 15 are arranged at intervals in the circumferential direction; and a plurality of anti-rotation grooves 13 are also arranged, and each anti-rotation groove 13 is arranged between two anti-rotation reinforcing ribs 15.
Now, the working principle of the present invention is explained as follows:
firstly, embedding two embedded parts 1 in two pipe pieces respectively, then connecting the connecting rod piece 2 with the first embedded part 1a in a threaded manner, then positioning the front section of the spindle body structure 3 in a groove of the pipe piece corresponding to the first embedded part 1a, finally pressing the second embedded part 1b and the pipe piece corresponding to the second embedded part towards the previous pipe piece through a jack, pressing the second embedded part 1b and the connecting rod piece 2 in a press manner and connecting the second embedded part and the connecting rod piece through the threaded manner, positioning the rear section of the spindle body structure 3 in a groove of the pipe piece corresponding to the second embedded part 1b, and connecting the two pipe pieces.
Compared with the prior art, the utility model discloses it is more reliable, stable to vertically the connection of two sections of jurisdiction on to have high withdrawal resistance, high bending resistance, because the part is less, consequently the assembly is more convenient, can effectively improve the efficiency of construction.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A novel segment longitudinal connector; the method is characterized in that:
comprises two embedded parts and a connecting rod piece; the two embedded parts are respectively sleeved at two ends of the connecting rod piece and are in threaded connection and positioning;
the main body of the embedded part is a tubular structure with an open front end and a closed rear end, internal threads are formed in the inner wall of the tubular structure, a plurality of retaining threads and at least two anti-rotation reinforcing ribs are arranged on the outer wall of the tubular structure, the retaining threads are arranged in parallel at intervals in the axial direction, and the anti-rotation reinforcing ribs are arranged at intervals in the circumferential direction;
the main body of the connecting rod piece is a rod-shaped body, and external threads are arranged at two ends of the connecting rod piece and are respectively in threaded connection with the two embedded parts; the middle part of the connecting rod piece is convexly provided with a spindle body structure, the front section and the rear section of the spindle body structure are both provided with conical surfaces, and the diameters of two ends of the spindle body structure are smaller than the diameter of the middle part of the spindle body structure.
2. The novel segment longitudinal connector of claim 1, wherein: the diameter of the stopping thread at the front end of the embedded part is larger than that of the stopping thread at the rear end of the embedded part.
3. The novel segment longitudinal connector of claim 1, wherein: and the anti-rotation reinforcing ribs are uniformly distributed on the embedded part at equal angle intervals.
4. The novel segment longitudinal connector of claim 1, wherein: a metal inner core is arranged in the main body of the connecting rod piece along the axial direction of the main body.
5. The novel segment longitudinal connector of claim 1, wherein: both ends of the connecting rod piece are provided with a taper.
6. The novel segment longitudinal connector of claim 1, wherein: the two ends of the connecting rod piece respectively comprise three sections, the two ends of the connecting rod piece are respectively provided with an inner section, a middle section and an outer section from the middle part of the connecting rod piece to the outside in sequence in the axial direction, the three sections are respectively provided with external threads, the diameter of the inner section is larger than that of the middle section, and the diameter of the middle section is larger than that of the outer section.
7. The novel segment longitudinal connector of claim 1, wherein: a plurality of anti-rotation reinforcing ribs are arranged on the spindle body structure, and the anti-rotation reinforcing ribs are arranged at intervals in the circumferential direction; and a plurality of anti-rotation grooves are also arranged, and each anti-rotation groove is arranged between the two anti-rotation reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277080.6U CN212027801U (en) | 2019-12-18 | 2019-12-18 | Novel duct piece longitudinal connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277080.6U CN212027801U (en) | 2019-12-18 | 2019-12-18 | Novel duct piece longitudinal connector |
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| Publication Number | Publication Date |
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| CN212027801U true CN212027801U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922277080.6U Active CN212027801U (en) | 2019-12-18 | 2019-12-18 | Novel duct piece longitudinal connector |
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| CN (1) | CN212027801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863839A (en) * | 2019-12-18 | 2020-03-06 | 倪筠 | Novel duct piece longitudinal connector |
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2019
- 2019-12-18 CN CN201922277080.6U patent/CN212027801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863839A (en) * | 2019-12-18 | 2020-03-06 | 倪筠 | Novel duct piece longitudinal connector |
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