CN213358159U

CN213358159U - Difficult not hard up spiral spike

Info

Publication number: CN213358159U
Application number: CN202021774801.0U
Authority: CN
Inventors: 张振
Original assignee: Suzhou Sudelan Railway Accessories Co ltd
Current assignee: Suzhou Sudelan Railway Accessories Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-04
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to a field of spike, specifically be a difficult not hard up spiral spike, it includes the spike body, the spike body includes that the polished rod is equipped with the threaded rod of external screw thread on polished rod and the pole, the one end of polished rod and the one end fixed connection of threaded rod, the one end fixedly connected with that the polished rod is threaded rod dorsad is used for the nut of easy to assemble spike body, the one end that the threaded rod is close to the polished rod is established to round platform form, and the one end that the cross-sectional area is great is close to the polished rod, the round platform form position department of threaded rod is equipped with the multichannel and is used for increasing the anti. This application has the fixed good effect of guarantee rail and road bed.

Description

Difficult not hard up spiral spike

Technical Field

The application relates to the field of spike nails, in particular to a spiral spike nail which is not easy to loosen.

Background

A spike is a fastener used to hold a rail down on the railroad bed. Generally, before the screw spike is installed, a threaded sleeve is fixedly arranged on the railway roadbed in advance. When the screw spike is installed, the screw spike penetrates through a connecting plate connected with the rail and is in threaded fit with the threaded sleeve, and the rail is tightly fixed on the railway roadbed.

When a train passes through a rail, large vibration can be generated on the rail, and after a large amount of vibration is borne, looseness is easily generated between a traditional spiral spike and a threaded sleeve, so that the fastening effect of the spiral spike on the rail is reduced, the rail is further unstable on a railway roadbed, and the running safety of the train is influenced.

SUMMERY OF THE UTILITY MODEL

In order to make the fixed action of spiral spike to the rail better, this application provides a difficult not hard up spiral spike.

The application provides a difficult not hard up spiral spike adopts following technical scheme:

the utility model provides a difficult not hard up spiral spike, includes the spike body, the spike body includes that the polished rod is equipped with the threaded rod of external screw thread on polished rod and the pole, the one end of polished rod and the one end fixed connection of threaded rod, the one end fixedly connected with of polished rod threaded rod dorsad is used for the nut of the spike of easy to assemble spike body, the one end that the threaded rod is close to the polished rod is established to the round platform form to the great one end of cross-sectional area is close to the polished rod, the round platform form position department of threaded rod is equipped with the multichannel and is used for increasing the frictional anti-skidding line.

Through adopting above-mentioned technical scheme, after the staff screwed in the threaded rod threaded sleeve, the tip that the threaded rod is close to the polished rod more pressed close to with threaded sleeve, and multichannel anti-skidding line on the threaded rod can contact with threaded sleeve, has increased the roughness between the outside surface of threaded rod and the threaded sleeve's the inside surface, makes the frictional force increase between threaded rod and the threaded sleeve. When the rail receives the vibration like this, because frictional force increase between threaded rod and the threaded sleeve pipe, be difficult to take place to become flexible under the vibration to play better fixed action to the rail.

Preferably, the polish rod is fixedly provided with a fixed gasket.

By adopting the technical scheme, when the spike body is connected with the threaded sleeve, the fixed gasket can increase the contact area between the spike body and the connecting plate positioned between the spike cap and the threaded sleeve, so that the spike body can easily compress the connecting plate; compared with the mode of externally adding the gasket, the mode of fixing the fixing gasket on the spike body simplifies the installation steps, is more convenient for workers to install, reduces the error rate in the installation process, and further ensures that the spike body can play a good role in fixing the rail.

Preferably, one end of the fixing gasket, which is close to the nail cap, is provided with an ellipsoid.

Through adopting above-mentioned technical scheme, the ellipsoid surface of solid shim has played the effect of approximate strengthening rib, can increase solid shim's intensity and rigidity, can make solid shim not fragile and take place to warp to guarantee solid shim normal function, make the spike body receive good fixed.

Preferably, the polished rod is sleeved with an elastic gasket, and the elastic gasket is positioned on one side of the fixed gasket, which is back to the nail cap.

Through adopting above-mentioned technical scheme, after the installation of spike body, the fixed shim can compress tightly the surface that is located the connecting plate between nail cap and the threaded sleeve pipe with elastic gasket, and the elastic gasket after being compressed tightly has elasticity, can support the surface of tight connecting plate and fixed shim to increase the friction between fixed gasket and the connecting plate, make the difficult emergence of spike body become flexible, and then the reinforcing is to the fixed action of rail.

Preferably, the polished rod is sleeved with a locking gasket, and the locking gasket is positioned on one side of the fixed gasket, which is back to the nail cap.

By adopting the technical scheme, the anti-loosening gasket consists of two gaskets with the same specification, the outer side of each gasket is provided with the radial convex grain surface, the inner side of each gasket is provided with the inclined tooth surface, and the tension between the two gaskets can play the effects of loosening prevention and tightening prevention. After the spike body is installed, the anti-loosening gasket can enable the spike body and a connecting plate located between the spike cap and the threaded sleeve to be not prone to loosening to a certain extent, and then the spike body can be enabled to play a good fixing effect on the rail.

Preferably, the thread on the threaded rod is a triangular thread.

Through adopting above-mentioned technical scheme, the triangle-shaped screw thread has better self-locking function, and the threaded rod passes through triangle-shaped screw thread and threaded sleeve and is connected, has certain locking nature to make the difficult emergence of spike body become flexible, play better fixed action to the rail.

Preferably, the thread on the threaded rod is a coarse thread with a large pitch.

Through adopting above-mentioned technical scheme, the cross-sectional dimension of coarse thread is bigger, has stronger antifatigue ability to can bear bigger pulling force and impact force, consequently the threaded rod that has coarse thread is difficult for taking place to damage when fighting against external force, thereby the guarantee rail is fixed well.

Preferably, the nail cap is square.

By adopting the technical scheme, the square nail cap is simple to manufacture and convenient to manufacture in a factory; during the fixed rail of spike body, the influence that square nail cap received after being corroded is less, dismantles and installs the spike body when still making things convenient for the staff to maintain.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the anti-skid lines on the threaded rod can increase the roughness between the outer side surface of the threaded rod and the inner side surface of the threaded sleeve, so that the friction between the threaded rod and the threaded sleeve is increased, the spike body is not easy to loosen, and a better fixing effect is achieved on a rail;

2. after the spike body is installed, the compressed elastic gasket has elasticity and can tightly abut against the fixed gasket and the connecting plate positioned between the spike cap and the threaded sleeve, so that the friction between the spike body and the connecting plate is increased, the spike body is not easy to loosen, and a good fixing effect is achieved on a rail;

3. after the spike body is installed, the anti-loosening gasket formed by the two gaskets with the same specification can ensure that the spike body is not easy to loosen to a certain extent, and plays a better role in fixing the rail.

Drawings

FIG. 1 is a schematic view showing the overall structure of a screw spike which is not easily loosened in example 1;

FIG. 2 is a sectional view of a screw spike which is less likely to loosen in practical use according to example 1;

fig. 3 is a perspective view highlighting the threaded rod structure of example 1;

fig. 4 is a schematic view showing the overall structure of a screw spike which is not easily loosened in example 2.

Description of reference numerals: 1. a spike body; 11. a threaded rod; 12. a polish rod; 13. a nail cap; 2. fixing a gasket; 3. an elastic pad; 4. a lock washer; 5. anti-skid lines; 6. coarse thread; 7. a roadbed; 8. a rail; 9. a connecting plate; 10. a threaded bushing.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a spiral spike which is not easy to loosen.

Example 1

Referring to fig. 1, the screw spike difficult to loosen comprises a spike body 1, wherein the spike body 1 comprises a threaded rod 11, a polished rod 12 and a square spike cap 13, external threads are arranged on the threaded rod 11, one end of the polished rod 12 is fixedly connected with one end of the threaded rod 11, and the spike cap 13 is fixedly connected with one end of the polished rod 12, which is opposite to the threaded rod 11.

Referring to fig. 1, a fixed gasket 2 is fixed on a polish rod 12, and one end of the fixed gasket 2 close to a nail cap 13 is an ellipsoid. The polished rod 12 is also sleeved with an elastic gasket 3, and the elastic gasket 3 is positioned on one side of the fixed gasket 2 away from the nail cap 13.

Referring to fig. 2, when the spike body 1 is installed, the threaded rod 11 passes through the connecting plate 9 fixedly connected with the railway rail 8 and enters the threaded sleeve 10 fixed below the roadbed 7 in advance, the threaded rod 11 is in threaded connection with the threaded sleeve 10, and a worker screws the threaded rod 11 in the threaded sleeve 10 through the spike cap 13. When the threaded rod 11 is screwed up, the elastic gasket 3 on the polished rod 12 is pressed on the connecting plate 9, and the elastic gasket 3 has elasticity and can abut against the connecting plate 9 and the fixed gasket 2, so that the spike body 1 is not easy to loosen, and the rail 8 and the roadbed 7 are well fixed.

Referring to fig. 3, one end of the threaded rod 11 close to the polished rod 12 is in a truncated cone shape, and the end having a larger cross-sectional area is connected to the polished rod 12. The round table is provided with a plurality of convex anti-skid lines 5. When the truncated cone-shaped end part of the threaded rod 11 enters the threaded sleeve 10, the anti-skidding threads 5 on the truncated cone are in contact with the inside of the threaded sleeve 10, friction between the threaded rod 11 and the threaded sleeve 10 is increased, relative sliding between the threaded rod 11 and the threaded sleeve 10 is not prone to occurring, and therefore the spike body 1 is not prone to loosening, and good fixing of the rail 8 and the roadbed 7 is guaranteed.

Referring to fig. 3, the thread profile on the threaded shaft 11 is triangular and the thread is a coarse thread 6 with a larger pitch. The triangular thread enables the threaded rod 11 to be tightly connected with the threaded sleeve 10 and has a self-locking function, so that the threaded rod 11 is not easy to slide relative to the threaded sleeve 10, and the spike body 1 is not easy to loosen to a certain extent. The coarse thread 6 has better tensile, impact and fatigue resistance, and the threaded rod 11 can bear larger external force without being damaged, thereby ensuring that the rail 8 and the roadbed 7 are well fixed.

The implementation principle of the embodiment 1 is as follows: when the rail 8 is fixed by the spike body 1, the threaded rod 11 is first put at the mouth of the threaded sleeve 10 through the connecting plate 9.

The threaded rod 11 is then manually screwed, keeping the threaded rod 11 vertically inside the threaded sleeve 10.

Finally, the spike cap 13 is clamped by using the relevant equipment, the threaded rod 11 is rotated in the threaded sleeve 10 until the elastic gasket 3 is pressed on the connecting plate 9 by the fixed gasket 2, and at the moment, the spike body 1 is installed.

Example 2

Referring to fig. 4, the difference between this embodiment and embodiment 1 is that a check washer 4 is sleeved on the polish rod 12, and the check washer 4 is located on the side of the fixing washer 2 away from the nut 13. When the fixed gasket 2 compresses the anti-loosening gasket 4 on the connecting plate 9, the anti-loosening gasket 4 can ensure that the fixed gasket 2 and the anti-loosening gasket 4 are not easy to slide relatively, so that the spike body 1 is tightly connected with the connecting plate 9 and is not easy to loosen, and a better fixing effect is realized on the rail 8.

The implementation principle of the embodiment 2 is as follows: when the rail 8 is fixed by the spike body 1, the threaded rod 11 is first put at the mouth of the threaded sleeve 10 through the connecting plate 9.

The threaded rod 11 is then manually screwed so that the threaded rod 11 is vertically inserted into the threaded sleeve 10.

And finally, clamping the spike cap 13 by using special equipment, and rotating the threaded rod 11 in the threaded sleeve 10 until the anti-loosening gasket 4 is pressed on the connecting plate 9 to finish the installation of the spike body 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a difficult not hard up spiral spike, includes spike body (1), its characterized in that: the spike body (1) is equipped with threaded rod (11) of external screw thread on including polished rod (12) and the pole, the one end of polished rod (12) and the one end fixed connection of threaded rod (11), the one end fixedly connected with of polished rod (12) threaded rod (11) dorsad is used for facilitating the installation spike cap (13) of spike body (1), the one end that threaded rod (11) is close to polished rod (12) is established to the round platform form to the great one end of cross-sectional area is close to polished rod (12), the round platform form position department of threaded rod (11) is equipped with multichannel and is used for increasing frictional anti-skidding line (5) between threaded rod (11) and threaded sleeve (10).

2. A non-loosening helical spike according to claim 1, wherein: the polish rod (12) is fixedly provided with a fixed gasket (2).

3. A non-loosening helical spike according to claim 2 wherein: one end of the fixed gasket (2) close to the nail cap (13) is an ellipsoid.

4. A non-loosening helical spike according to claim 2 wherein: the polished rod (12) is sleeved with an elastic gasket (3), and the elastic gasket (3) is located on one side, back to the nail cap (13), of the fixed gasket (2).

5. A non-loosening helical spike according to claim 2 wherein: the polished rod (12) is sleeved with a locking gasket (4), and the locking gasket (4) is located on one side, back to the screw cap (13), of the fixing gasket (2).

6. A non-loosening helical spike according to claim 1, wherein: the thread on the threaded rod (11) is a triangular thread.

7. A non-loosening helical spike according to claim 1, wherein: the thread on the threaded rod (11) is a coarse thread (6) with a larger thread pitch.

8. A non-loosening helical spike according to claim 1, wherein: the nail cap (13) is square.