CN211524301U

CN211524301U - Pull rod

Info

Publication number: CN211524301U
Application number: CN201922371965.2U
Authority: CN
Inventors: 徐锡臻; 徐雪萍
Original assignee: Qingdao Platinum Rui Line Equipment Co ltd
Current assignee: Qingdao Platinum Rui Line Equipment Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-18
Anticipated expiration: 2029-12-26

Abstract

A pull rod. The method is characterized in that: the center of each of two ends of the rod body is provided with a central extension hole, the two ends of the rod body are also connected with threaded rods, a threaded hole is formed in the center of each threaded rod, the threaded hole and the central extension hole are coaxially arranged, and the diameter of the central extension hole is larger than that of the threaded hole; the connecting piece is provided with a screw rod part and is in threaded connection with the threaded rod through the screw rod part. Its advantage lies in adopting above scheme for it is satisfying under the taut prerequisite of the shrink of the body of rod and connecting piece, only carries out the processing of screw hole to threaded rod department, and screw hole length is little, and it is more convenient to process, can ensure its machining precision, guarantees its reliable cooperation with connecting piece screw rod portion, and manufacturing cost is lower moreover.

Description

Pull rod

Technical Field

The utility model relates to an electric power tech field, concretely relates to pull rod.

Background

The electric line pole is just a pole of a roadside rack electric line as the name implies, is used for erecting various electronic overhead lines and communication cables, and is one of important basic settings for power supply and communication.

In order to ensure the stable and firm installation of the electric line pole, it is usually necessary to fix the electric line pole by using a pull wire, a pull rod, a ground anchor and other parts, wherein one end of the pull wire is connected with the electric pole, the other end of the pull wire is connected with the pull rod, and the pull wire is connected to the ground anchor buried in the ground or other metal parts through the pull rod.

The existing pull rod generally comprises a rod body and connecting pieces at two ends of the rod body, the connecting pieces and the rod body are generally in threaded connection, and during installation, the connecting pieces at the two ends are respectively connected with a pull wire and an earth anchor, and then are contracted, tensioned and fixed through threaded fit.

Usually, the body of rod both ends form the screw hole, and the degree of depth of this screw hole will be enough dark in order to satisfy with the cooperation of connecting rod, but the screw hole is too dark, leads to the process of punching to be difficult to guarantee its centricity, and the processing difficulty, not only the machining precision is low, and the fragile cutter leads to manufacturing cost high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a pull rod.

The utility model discloses the technical scheme who adopts: a pull rod comprises a rod body and connecting pieces at two ends of the rod body; the center of each of two ends of the rod body is provided with a central extension hole, the two ends of the rod body are also connected with threaded rods, a threaded hole is formed in the center of each threaded rod, the threaded hole and the central extension hole are coaxially arranged, and the diameter of the central extension hole is larger than that of the threaded hole; the connecting piece is provided with a screw rod part and is in threaded connection with the threaded rod through the screw rod part.

The rod body and the threaded rod are integrally formed.

The rod body is fixedly connected with the threaded rod through welding.

The thread of the threaded holes of the two threaded rods are in opposite direction.

A first operating nut is formed on the threaded rod at least at one end.

And a second operating nut is arranged on the connecting piece.

The rod body, the connecting piece and the threaded rod are all made of steel.

And a zinc coating is coated on the rod body, the connecting piece and the threaded rod.

The utility model has the advantages that: scheme more than adopting for it is satisfying under the taut prerequisite of the shrink of the body of rod and connecting piece, only carries out the processing of screw hole to threaded rod department, and screw hole length is little, and it is more convenient to process, can ensure its machining precision, guarantees its reliable cooperation with connecting piece screw rod portion, and manufacturing cost is lower moreover.

Drawings

Fig. 1 is a schematic structural view of a pull rod according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

as shown in the figure, the pull rod comprises a rod body 1 and connecting pieces 2 at two ends of the rod body 1; the utility model discloses a connector, including the body of rod 1, the body of rod 1 both ends center is equipped with central extension hole 11, 1 both ends of the body of rod still are connected with threaded rod 3, threaded rod 3 center is formed with screw hole 31, be provided with screw rod portion 21 on the connecting piece 2 to through screw rod portion 21 and 3 threaded connection of threaded rod.

The threaded hole 31 and the central extension hole 11 are coaxially arranged, and the diameter D1 of the central extension hole 11 is larger than the diameter D2 of the threaded hole 31, so that the screw part 21 can continuously extend into the central extension hole 11 after passing through the threaded hole 31, and the large-amplitude telescopic adjustment between the rod body 1 and the connecting piece 2 is ensured.

Adopt above-mentioned scheme for it only carries out the processing of screw hole 31 to screw rod 3 department under the taut prerequisite of the shrink that satisfies body of rod 1 and connecting piece 2, and screw hole 31 length is little, and it is more convenient to process, can ensure its machining precision, guarantees its reliable cooperation with connecting piece screw rod portion 21, and manufacturing cost is lower moreover.

Wherein, the body of rod 1 and threaded rod 3 can be integrated into one piece, and specific processing mode does, and at first 1 both ends of the body of rod punch and generate central extension hole 11, then through the friction press 1 both ends blunt solid to the body of rod, punch the tapping again, form threaded rod 3, and processing is convenient, and integrated into one piece's structure moreover, mechanical strength is higher, is favorable to its stable fixed to the electric circuit pole.

Of course, the rod body 1 and the threaded rod 3 can also be connected by welding, and the mechanical strength of the rod body is slightly insufficient compared with an integrated structure, but the processing is more convenient.

In addition, the threads of the threaded holes 31 of the two threaded rods 3 are mutually reversely screwed, and the operating rod body 1 rotates, so that the two ends can be loosened or tightened simultaneously, and the operation is more convenient.

To further facilitate the operation, the threaded rod 3 of at least one of the ends is externally formed with a first operating nut 32. Of course, the second operating nut 22 is arranged on the connecting piece 2, so that the connecting piece 2 can be detached by single operation conveniently.

The rod body 1, the connecting piece 2 and the threaded rod 3 are all made of steel, the steel structure is stable and reliable, and further, the rod body 1, the connecting piece 2 and the threaded rod 3 are coated with a zinc coating layer, so that corrosion is reduced, and the service life is prolonged.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. A pull rod comprises a rod body (1) and connecting pieces (2) at two ends of the rod body (1);

the method is characterized in that: the center of each of two ends of the rod body (1) is provided with a central extension hole (11), two ends of the rod body (1) are also connected with a threaded rod (3), a threaded hole (31) is formed in the center of the threaded rod (3), the threaded hole (31) and the central extension hole (11) are coaxially arranged, and the diameter of the central extension hole (11) is larger than that of the threaded hole (31); the connecting piece (2) is provided with a screw rod part (21) and is in threaded connection with the threaded rod (3) through the screw rod part (21).

2. A tie rod according to claim 1 wherein: the rod body (1) and the threaded rod (3) are integrally formed.

3. A tie rod according to claim 1 wherein: the rod body (1) is fixedly connected with the threaded rod (3) through welding.

4. A tie rod according to claim 1 wherein: the threads of the threaded holes (31) of the two threaded rods (3) are mutually reverse-direction spiral.

5. A tie rod according to claim 1 wherein: at least one end of the threaded rod (3) is externally provided with a first operating nut (32).

6. A tie rod according to claim 1 wherein: and a second operating nut (22) is arranged on the connecting piece (2).

7. A tie rod according to claim 1 wherein: the rod body (1), the connecting piece (2) and the threaded rod (3) are all made of steel.

8. A tie rod according to claim 1 wherein: and a zinc coating is coated outside the rod body (1), the connecting piece (2) and the threaded rod (3).