CN210799648U - Subway bolt and subway arc section of jurisdiction threaded connection structure - Google Patents
Subway bolt and subway arc section of jurisdiction threaded connection structure Download PDFInfo
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- CN210799648U CN210799648U CN201921448652.6U CN201921448652U CN210799648U CN 210799648 U CN210799648 U CN 210799648U CN 201921448652 U CN201921448652 U CN 201921448652U CN 210799648 U CN210799648 U CN 210799648U
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Abstract
The utility model discloses a subway bolt, which comprises a head part; the transition connecting part is in a circular truncated cone shape, is provided with an inwards concave arc-shaped side wall, is positioned on one side of the head part and is connected with the head part; a rod part located at one side of the transition connection narrow end and connected with the transition connection partThe connecting structure comprises a rod part, a head part and a first straight line part, wherein the surface of one end, far away from the head part, of the rod part is provided with an outer arc thread, the tooth form of the outer arc thread is formed by connecting a first arc, the first straight line part, a second arc and the first straight line part in sequence, the first straight line part is respectively tangent to the first arc and the second arc, and the thread pitch P of the outer arc thread1Is 5.08mm, the tooth form angle theta1Is 13 degrees, and the first arc radius R2Is 0.9 mm-1 mm, the radius of the second arc R3Is 1.5mm to 1.6 mm. Subway arc section of jurisdiction threaded connection structure is including subway bolt and sleeve pipe. The utility model provides a subway bolt and subway arc section of jurisdiction threaded connection structure, special design has solved the arc section of jurisdiction and has carried out the problem of installing, has avoided the secondary construction.
Description
Technical Field
The utility model relates to a bolt technical field especially relates to a subway bolt and subway arc section of jurisdiction threaded connection structure.
Background
In a subway construction project, the arc-shaped duct piece is required to be installed by matching the bolt with the plastic sleeve. However, since the plastic sleeve is pre-embedded in the plastic, the existing bolt cannot meet the installation requirement. If the mounting structure of the arc-shaped duct piece is replaced, the construction needs to be carried out again, a large amount of reworking is caused, and the construction cost is increased rapidly.
Therefore, the applicant aims to design a subway bolt aiming at the special situation, so that the construction requirement can be met, and the installation structure of the arc-shaped duct piece is not required to be changed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the problem that prior art exists, provide a subway bolt and subway arc section of jurisdiction threaded connection structure, special design has solved the arc section of jurisdiction and has carried out the problem of installing, has avoided the secondary construction.
The utility model adopts the technical proposal that:
a subway bolt comprising
A head portion;
the transition connecting part is in a circular truncated cone shape, is provided with an inwards concave arc-shaped side wall, is positioned on one side of the head part and is connected with the head part;
the rod part is positioned on one side of the narrow end of the transition connection part and connected with the transition connection part, an outer arc thread is arranged on the surface of one end, far away from the head, of the rod part, the tooth form of the outer arc thread is formed by connecting a first arc, a first straight line segment, a second arc and a first straight line segment in sequence, the first straight line segment is tangent to the first arc and the second arc respectively, and the thread pitch P of the outer arc thread1Is 5.08mm, the tooth form angle theta1Is 13 degrees, and the first arc radius R2Is 0.9 mm-1 mm, the radius of the second arc R3Is 1.5mm to 1.6 mm.
Further, the outer arcLength L of the thread3Is 200mm to 210 mm.
Further, the whole surface of the bolt is plated with an anti-corrosion layer.
Furthermore, the thickness of the anticorrosive layer is more than or equal to 10 mu m.
Further, the diameter of the rod part is phi229.4mm, the maximum diameter phi of the external arc thread3Is 32.2mm and has a minimum diameter phi4Is 26.8mm, and the first arc radius R2Is 0.9mm, the second arc radius R3Is 1.6 mm.
Further, the diameter of the rod part is phi2Is 32.2mm, and the maximum diameter phi of the external arc thread3Is 35mm and has a minimum diameter phi4Is 30mm, the first arc radius R2Is 1mm, the radius of the second circular arc R3Is 1.5 mm.
A threaded connection structure for an arc-shaped segment of a subway comprises
The sleeve is provided with an inner circular arc thread, the tooth form of the inner circular arc thread is formed by connecting a third circular arc, a second straight line section, a fourth circular arc and a second straight line section in sequence, and the pitch P of the inner circular arc thread2Is 5.08mm, the tooth form angle theta2Is 13 degrees, and the radius R of the third circular arc4Is 0.9 mm-1 mm, and the radius of the fourth arc R51.5mm to 1.6 mm;
in the subway bolt, the thread is arranged in the sleeve.
Further, the length L of the inner circular arc thread5Is 180 mm-190 mm.
Further, the maximum diameter phi of the inner circular arc thread638.6mm, minimum diameter phi7Is 35.2 mm.
Further, the inner side of one end of the sleeve is in an inverted cone shape.
The utility model has the advantages that:
(1) the utility model discloses a solve the bolt among the prior art can't with sleeve pipe complex problem, designed a subway bolt, have head, transition connecting portion and pole portion to constitute, outer circular arc screw thread is seted up in pole portion to design excircle circular arc screw thread profile of tooth structure and parameter, make it be exclusively used in and carry out the installation of arc section of jurisdiction with the sleeve pipe cooperation, thereby solve the secondary construction, problem that the cost is increaseed.
(2) The utility model provides a subway arc venturi tube piece thread connection structure comprises sleeve pipe and dedicated subway bolt, stable in structure, and the sleeve pipe does not deviate from with the bolt equipment back, accords with the installation requirement.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is the embodiment 1 of the present invention, a schematic structural diagram of a subway bolt.
Fig. 2 is a schematic view of the tooth form structure of the outer circular arc thread in embodiment 1 of the present invention.
Fig. 3 is the embodiment 4 of the present invention provides a schematic structural diagram of a threaded connection structure for a subway arc-shaped segment.
Fig. 4 is a schematic structural view of a sleeve according to embodiment 4 of the present invention.
Fig. 5 is a schematic view of the tooth form structure of the inner circular arc thread in embodiment 4 of the present invention.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention.
Embodiments of the present invention/utility model will be described in detail below with reference to the drawings.
Example 1
The utility model discloses an embodiment, a subway bolt, as shown in figure 1, including integrated into one piece's head 1, transition connecting portion 2 and pole portion 3, three axial direction center coincidence.
In particular, the head 1 has a square, hexagonal or other shape with a diameter phi of a circle inscribed in its cross-section1Is 53.8 mm-55 mm and has a thickness L1The thickness of the film is 21.45mm to 23.55 mm.
The transition connecting part 2 is positioned between the head part 1 and one end part of the rod part 3, is in a circular truncated cone shape, and the side wall of the circular truncated cone is in an inwards concave circular arc shape. Height H of the truncated cone1Is 2mm and has a concave arc radius R1Is 2 mm. The narrow end of the transition connecting part 2, namely the end with the smaller diameter of the end surface of the transition connecting part 2 is connected with one end of the rod part, and the diameters of the two ends are equal.
The subway bolt is processed by 40Cr, the strength grade is 8.8 grade, the tensile strength is more than or equal to 830MPa, the yield strength is more than or equal to 660MPa, the elongation is more than or equal to 12 percent, and the hardness is HRC 23-24. The surface of the subway bolt is plated with a zinc chromate anticorrosive coating, and the thickness of the coating is more than or equal to 10 mu m.
Example 2
The utility model discloses an embodiment, a subway bolt includes integrated into one piece's head 1, transition connecting portion 2 and pole portion 3, and three axial direction coincides.
In particular, the head 1 has a square, hexagonal or other shape with a diameter phi of a circle inscribed in its cross-section1Is 55mm and has a thickness L1Is 22.5 mm.
The transition connecting part 2 is positioned between the head part 1 and one end part of the rod part 3, is in a circular truncated cone shape, and the side wall of the circular truncated cone is in an inwards concave circular arc shape. Height H of the truncated cone1Is 2mm and has a concave arc radius R1Is 2 mm. The narrow end of the transition connecting part 2, namely the end with the smaller diameter of the end surface of the transition connecting part 2 is connected with one end of the rod part, and the diameters of the two ends are equal.
Example 3
The utility model discloses an embodiment, a subway bolt includes integrated into one piece's head 1, transition connecting portion 2 and pole portion 3, and three axial direction coincides.
In particular, the head 1 has a square, hexagonal or other shape with a diameter phi of a circle inscribed in its cross-section1Is 55mm and has a thickness L1Is 22.5 mm.
The transition connecting part 2 is positioned between the head part 1 and one end part of the rod part 3, is in a circular truncated cone shape, and the side wall of the circular truncated cone is in an inwards concave circular arc shape. Height H of the truncated cone1Is 2mm and has a concave arc radius R1Is 2 mm. The narrow end of the transition connecting part 2, namely the end with the smaller diameter of the end surface of the transition connecting part 2 is connected with one end of the rod part, and the diameters of the two ends are equal.
Example 4
Subway arc section of jurisdiction threaded connection structure, including subway bolt 100 and sleeve pipe 200, subway bolt 100 is installed and is shown as attached 3 in sleeve pipe 200.
The subway bolt 100 comprises a head part 1, a transition connecting part 2 and a rod part 3 which are integrally formed, and the axial centers of the head part 1, the transition connecting part 2 and the rod part 3 are overlapped.
In particular, the head 1 has a square, hexagonal or other shape with a diameter phi of a circle inscribed in its cross-section1Is 53.8 mm-55 mm and has a thickness L1The thickness of the film is 21.45mm to 23.55 mm.
The transition connecting part 2 is positioned between the head part 1 and one end part of the rod part 3, is in a circular truncated cone shape, and the side wall of the circular truncated cone is in an inwards concave circular arc shape. Height H of the truncated cone1Is 2mm and has a concave arc radius R1Is 2 mm. TransitionThe narrow end of the connecting part 2, namely the end with the smaller diameter of the end surface of the transition connecting part 2 is connected with one end of the rod part, and the diameters of the two ends are equal.
Example 5
Subway arc section of jurisdiction threaded connection structure, including subway bolt 100 and sleeve pipe 200, subway bolt 100 installs in sleeve pipe 200.
The subway bolt 100 comprises a head part 1, a transition connecting part 2 and a rod part 3 which are integrally formed, and the axial centers of the head part 1, the transition connecting part 2 and the rod part 3 are overlapped.
In particular, the head 1 has a square, hexagonal or other shape with a diameter phi of a circle inscribed in its cross-section1Is 55mm and has a thickness L1Is 22.5 mm.
The transition connecting part 2 is positioned between the head part 1 and one end part of the rod part 3, is in a circular truncated cone shape, and the side wall of the circular truncated cone is in an inwards concave circular arc shape. Height H of the truncated cone1Is 2mm and has a concave arc radius R1Is 2 mm. The narrow end of the transition connecting part 2, namely the end with the smaller diameter of the end surface of the transition connecting part 2 is connected with one end of the rod part, and the diameters of the two ends are equal.
Claims (10)
1. Subway bolt, its characterized in that: comprises that
A head portion;
the transition connecting part is in a circular truncated cone shape, is provided with an inwards concave arc-shaped side wall, is positioned on one side of the head part and is connected with the head part;
the rod part is positioned on one side of the narrow end of the transition connection part and connected with the transition connection part, an outer arc thread is arranged on the surface of one end, far away from the head part, of the rod part, and the outer arc thread is arranged on the surface of the outer arcThe thread profile of the thread is formed by connecting a first circular arc, a first straight line segment, a second circular arc and a first straight line segment in sequence, wherein the first straight line segment is tangent to the first circular arc and the second circular arc respectively, and the thread pitch P of the outer circular arc thread1Is 5.08mm, the tooth form angle theta1Is 13 degrees, and the first arc radius R2Is 0.9 mm-1 mm, the radius of the second arc R3Is 1.5mm to 1.6 mm.
2. A subway bolt as claimed in claim 1, wherein: length L of the outer circular arc thread3Is 200mm to 210 mm.
3. A subway bolt as claimed in claim 1, wherein: the whole surface of the bolt is plated with an anticorrosive coating.
4. A subway bolt as claimed in claim 3, wherein: the thickness of the anticorrosive layer is more than or equal to 10 mu m.
5. A subway bolt as claimed in any one of claims 1 to 4, wherein: diameter phi of the rod part229.4mm, the maximum diameter phi of the external arc thread3Is 32.2mm and has a minimum diameter phi4Is 26.8mm, and the first arc radius R2Is 0.9mm, the second arc radius R3Is 1.6 mm.
6. A subway bolt as claimed in any one of claims 1 to 4, wherein: diameter phi of the rod part2Is 32.2mm, and the maximum diameter phi of the external arc thread3Is 35mm and has a minimum diameter phi4Is 30mm, the first arc radius R2Is 1mm, the radius of the second circular arc R3Is 1.5 mm.
7. Subway arc section of jurisdiction threaded connection structure, its characterized in that: comprises that
A sleeve with an inner arc thread having a tooth form consisting of a third arc, a second straight line segment and a fourth circleThe arc and the second straight line segment are connected, and the pitch P of the inner arc thread2Is 5.08mm, the tooth form angle theta2Is 13 degrees, and the radius R of the third circular arc4Is 0.9 mm-1 mm, and the radius of the fourth arc R51.5mm to 1.6 mm;
a bolt for a subway as claimed in any one of claims 1 to 4, wherein a thread is fitted into said sleeve.
8. The subway arc-shaped segment threaded connection structure as claimed in claim 7, wherein: length L of said inner circular arc thread5Is 180 mm-190 mm.
9. The subway arc-shaped segment threaded connection structure as claimed in claim 7, wherein: maximum diameter phi of the inner circular arc thread638.6mm, minimum diameter phi7Is 35.2 mm.
10. The subway arc-shaped segment threaded connection structure as claimed in claim 7, wherein: the inner side of one end of the sleeve is in an inverted cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921448652.6U CN210799648U (en) | 2019-09-02 | 2019-09-02 | Subway bolt and subway arc section of jurisdiction threaded connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921448652.6U CN210799648U (en) | 2019-09-02 | 2019-09-02 | Subway bolt and subway arc section of jurisdiction threaded connection structure |
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| Publication Number | Publication Date |
|---|---|
| CN210799648U true CN210799648U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921448652.6U Active CN210799648U (en) | 2019-09-02 | 2019-09-02 | Subway bolt and subway arc section of jurisdiction threaded connection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594264A (en) * | 2019-09-02 | 2019-12-20 | 四川东博轨道科技有限公司 | Subway bolt and subway arc section of jurisdiction threaded connection structure |
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2019
- 2019-09-02 CN CN201921448652.6U patent/CN210799648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594264A (en) * | 2019-09-02 | 2019-12-20 | 四川东博轨道科技有限公司 | Subway bolt and subway arc section of jurisdiction threaded connection structure |
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Address after: No. 203, Huancheng East Road, Longchang City, Neijiang City, Sichuan Province Patentee after: Sichuan Dongbo Track Technology Co.,Ltd. Address before: 642150 No. 49 Dongxin Street, Jine Town, Longchang, Neijiang City, Sichuan Province Patentee before: Sichuan Dongbo Track Technology Co.,Ltd. |