CN213541020U - Bolt for railway track - Google Patents
Bolt for railway track Download PDFInfo
- Publication number
- CN213541020U CN213541020U CN202022668102.4U CN202022668102U CN213541020U CN 213541020 U CN213541020 U CN 213541020U CN 202022668102 U CN202022668102 U CN 202022668102U CN 213541020 U CN213541020 U CN 213541020U
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- China
- Prior art keywords
- screw rod
- bolt
- screw
- cavity
- railway track
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Abstract
The utility model discloses a bolt for railway track, which comprises a screw rod and a screw head, wherein the screw rod is a cylinder with smooth outer surface, the upper end of the screw rod is provided with the screw head, the screw rod is internally and vertically provided with a cavity, the cavity is cylindrical, the inner surface of the cavity is provided with an internal thread, the lower end of the screw head is provided with a plurality of anti-skid latch teeth, the joint of the screw rod and the screw head is provided with a step surface, one end of the screw rod, which is close to the internal thread, is provided with a chamfer, the screw rod and the screw head are in an integrated structure, the screw rod and the cavity are concentrically arranged, the screw head is in a parallelogram or a rectangle, the utility model discloses a screw thread cavity is arranged in the bolt screw rod, the screw thread cavity can be matched with the traditional bolt for use, no nut is needed, the requirement of the bolt in some special occasions is met, the anti-loosening performance is good.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of fastener, especially technical field of bolt for railway track.
[ background of the invention ]
Bolt: mechanical parts, the cylindrical threaded fastener of adapted nut, a class of fastener that comprises head and screw rod two parts, traditional bolt need use with the nut cooperation for the part of fastening connection two areas with through-hole, this kind of connection form is called bolted connection, hopes to provide a special bolt, can use with the cooperation of traditional ordinary bolt, satisfies some special occasions to the demand of bolt.
[ Utility model ] content
The utility model aims at solving the problem in the prior art and providing a bolt for railway track, which can be matched with the traditional common bolt for use without a nut.
In order to achieve the purpose, the utility model provides a bolt for railway track, including screw rod, spiral shell head, the screw rod be the smooth cylinder of surface, screw rod upper end be equipped with the spiral shell head, the screw rod in the vertical cavity that is equipped with, the cavity be the cylinder type, the cavity inner surface be equipped with the internal thread.
Preferably, the lower end of the screw head is provided with a plurality of anti-skid clamping teeth.
Preferably, a step surface is arranged at the joint of the screw rod and the screw head.
Preferably, one end of the screw rod close to the internal thread is provided with a chamfer.
Preferably, the screw rod and the screw head are in an integrally formed structure.
Preferably, the screw is concentrically arranged with the cavity.
Preferably, the screw head is a parallelogram or a rectangle.
The utility model has the advantages that: the utility model discloses a set up a screw thread chamber in the bolt screw rod, can use with traditional bolt cooperation through the screw thread chamber, need not the nut, satisfy some special occasions to the demand of bolt, and simple structure, low in production cost, locking performance is good.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a front view of a bolt for a railway track according to the present invention;
fig. 2 is a front sectional view of a bolt for a railway track according to the present invention;
fig. 3 is a schematic plan view of a bolt for a railway track according to the present invention.
In the figure: 1-screw rod, 2-screw head, 3-step surface, 11-cavity, 12-chamfer, 21-anti-skid clamping groove and 111-internal thread.
[ detailed description ] embodiments
Referring to fig. 1, fig. 2 and fig. 3, the utility model relates to a bolt for railway track, including screw rod 1, spiral shell head 2, screw rod 1 be the smooth cylinder of surface, 1 upper end of screw rod be equipped with spiral shell head 2, screw rod 1 in the vertical cavity 11 that is equipped with, cavity 11 be the cylinder type, 11 internal surfaces of cavity be equipped with internal thread 111, 2 lower extremes of spiral shell head be equipped with a plurality of anti-skidding latch 21, screw rod 1 and spiral shell head 2 junction be equipped with step face 3, screw rod 1 one end that is close to internal thread 111 be equipped with chamfer 12, screw rod 1 and spiral shell head 2 be the integrated into one piece structure, screw rod 1 and cavity 11 concentric setting, spiral shell head 2 be parallelogram or rectangle.
The utility model discloses the working process:
the utility model relates to a bolt for railway track is in the course of the work, predetermines on the railway track 2 ends of the spiral shell head of bolt, passes screw rod 1 with required fixed work piece, stretches into screw rod 1's cavity 11 with the screw rod of traditional ordinary bolt in, screws up ordinary bolt through internal thread 111.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (7)
1. A bolt for a railway track, characterized in that: including screw rod (1), spiral shell head (2), screw rod (1) be the smooth cylinder of surface, screw rod (1) upper end be equipped with spiral shell head (2), screw rod (1) in vertically be equipped with cavity (11), cavity (11) be the cylinder type, cavity (11) internal surface be equipped with internal thread (111).
2. A bolt for a railway track according to claim 1, wherein: the lower end of the screw head (2) is provided with a plurality of anti-skid clamping teeth (21).
3. A bolt for a railway track according to claim 1, wherein: the screw rod (1) is provided with a step surface (3) at the joint with the screw head (2).
4. A bolt for a railway track according to claim 1, wherein: and a chamfer (12) is arranged at one end of the screw rod (1) close to the internal thread (111).
5. A bolt for a railway track according to claim 1, wherein: the screw rod (1) and the screw head (2) are of an integrally formed structure.
6. A bolt for a railway track according to claim 1, wherein: the screw rod (1) and the cavity (11) are arranged concentrically.
7. A bolt for a railway track according to claim 1, wherein: the screw head (2) is parallelogram or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668102.4U CN213541020U (en) | 2020-11-18 | 2020-11-18 | Bolt for railway track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668102.4U CN213541020U (en) | 2020-11-18 | 2020-11-18 | Bolt for railway track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213541020U true CN213541020U (en) | 2021-06-25 |
Family
ID=76482895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022668102.4U Active CN213541020U (en) | 2020-11-18 | 2020-11-18 | Bolt for railway track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213541020U (en) |
-
2020
- 2020-11-18 CN CN202022668102.4U patent/CN213541020U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |