CN216832174U

CN216832174U - Tensile spring pipe bender

Info

Publication number: CN216832174U
Application number: CN202123219090.8U
Authority: CN
Inventors: 曾桂广
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-28
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a tensile spring hickey belongs to decoration water and electricity pipeline construction technical field, including spring and stay cord, the stay cord is located the spring, and just at least one end and spring end connection. The utility model has the advantages that: this scheme is through increasing a stay cord that passes the spring and fix with the spring, when taking out the spring from electrician's sleeve pipe, the end of spring receives the pulling force and promotes the front end motion, has avoided directly drawing the spring and drawing bad spring from the front end, has increased the life of spring.

Description

Tensile spring pipe bender

Technical Field

The utility model belongs to the technical field of the decoration water and electricity pipeline construction, concretely relates to tensile spring hickey.

Background

In the home decoration, generally wear to establish the electric wire in the electrician's sleeve pipe, then with the electrician's sleeve pipe pre-buried in underground or wall, it is concrete, generally all be at ground or wall fluting, then lay the spool in the groove, when meetting the spool by ground to wall junction, just need bend the construction demand that can satisfy reality to the spool.

The PVC pipe is a pipe commonly adopted by electrical sleeves, a cylindrical spiral extension spring is generally adopted to bend the PVC electrical sleeve during actual construction, namely the spring penetrates to a position needing to be bent in the PVC electrical sleeve, then the PVC pipe is bent by two hands at a corresponding angle, the spring plays a role in supporting the PVC pipe wall in the inner diameter of the PVC pipe during bending of the PVC pipe without collapsing and flattening, but the PVC pipe inner wall can be tightly attached to the outer wall of the spring after bending the PVC pipe, the friction force between the PVC pipe inner wall and the outer wall of the spring is also increased, when the spring is required to be pulled out from the bent PVC pipe, the spring cannot be pulled out due to too small tension, and the excessive tension exceeds the maximum tension born by the spring, so that the spring is damaged by pulling.

SUMMERY OF THE UTILITY MODEL

The problem that the existing spring pipe bender is not easy to pull out from an electrical casing and is easy to break is solved.

The purpose of the utility model can be realized by the following technical scheme:

a tensile spring pipe bender comprises a spring and a pull rope, wherein the pull rope is located in the spring, and at least one end of the pull rope is connected with the end portion of the spring.

As a further improvement of the utility model, the spring includes spring main part and the shackle of setting at spring main part both ends, and the at least one end of stay cord is connected with the shackle of spring.

As a further improvement of the utility model, the utility model also comprises a traction wire, and the traction wire is connected with the hook ring of the spring main body.

As a further improvement, the spring body includes the middle part structure and is located the narrow end structure of middle part structure both sides, the external diameter of narrow end structure outwards reduces gradually along middle part structure one side, shackle fixed mounting is in the outer end of narrow end structure.

As a further improvement of the utility model, the spring is prepared by flat steel wire tempering, and the surface of the spring is treated by electroplating or electrophoresis after high-temperature quenching.

As a further improvement, the pull rope is a steel wire rope.

Compared with the prior art, the beneficial effects of the utility model are that:

this scheme is through increasing a stay cord that passes the spring and fix with the spring, when taking out the spring from electrician's sleeve pipe, the end of spring receives the pulling force and promotes the front end motion, has avoided directly drawing the spring and drawing bad spring from the front end, has increased the life of spring.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a pull cord of the present invention passing through a spring and connected to a shackle;

fig. 2 is a schematic structural view of the spring and the pull rope of the present invention;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Reference numerals:

1. a spring; 11. a spring body; 12. a shackle; 2. pulling a rope; 3. and (6) pulling the wire.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-2, a tensile spring pipe bender, including spring 1 and stay cord 2, wherein, stay cord 2 is located spring 1, and one end is connected with shackle 12 of spring 1, during the return bend, wear the spring to the position that need bend in the PVC electrician's cover pipe, then bend the PVC pipe with both hands, during the PVC pipe of bending the spring play in the PVC pipe internal diameter and support the PVC pipe wall not collapse and not roll over flat, after the return bend was accomplished, thus pulling stay cord 2 and driving spring 1 afterbody forward motion, finally pull out the spring, avoided directly pulling the spring from the front end and drawn the spring bad.

The spring 1 includes a spring body 11 and hooks 12 provided at both ends of the spring body 11, so that the pull cord 2 is more easily fixed to the spring.

The spring body 11 includes middle part structure and the narrow end structure that is located middle part structure both sides, and the external diameter of narrow end structure outwards reduces gradually along middle part structure one side, and shackle 12 fixed mounting is in the outer end of narrow end structure to make the spring more easily penetrated the sleeve pipe and pull out.

When the PVC pipe bending device is used, the spring 1 penetrates to a position needing to be bent in a PVC electrical casing, then the PVC pipe is bent at a corresponding angle by two hands, the spring 1 plays a role in supporting the PVC pipe wall in the inner diameter of the PVC pipe to prevent the PVC pipe wall from collapsing and not to be folded and flattened when the PVC pipe is bent, but the inner wall of the PVC pipe is tightly attached to the outer wall of the spring after the PVC pipe is bent, and the friction force between the inner wall of the PVC pipe and the outer wall of the spring is also increased; when the spring is taken out, the pull rope 2 is pulled to drive the tail part of the spring 1 to move forwards, and finally the spring is pulled out, so that the spring is prevented from being damaged by pulling the spring from the front end directly.

Spring 1 stretches into in the electrician sleeve, normally carry out crooked operation, after the return bend operation, through outwards dragging stay cord 2, and then drag spring 1 out by crooked electrician sleeve, drag the in-process, stay cord 2 is through directly dragging rather than the shackle 12 that is connected, shackle 12 removes and drives spring 1 synchronous motion, so drag the in-process, spring 1 can not take place deformation, compare among the prior art directly drag the spring out by crooked electrician sleeve pipe, lead to the spring to take place great deformation, can lead to the spring to produce fatigue effect after the spring uses for a long time, spring force reduces, the return bend effect variation, and scrap very fast, in this scheme, can reduce the spring and take place meaningless deformation, and then increase the life of spring.

Example 2

As shown in fig. 3, two ends of the pulling rope 2 are fixed on the pulling hook 12 of the spring 1, the pulling wire 3 is connected with the hook 12, the pulling wire 3 is used for pulling the spring to be pulled out from the electrical casing, and the pulling rope 2 and the spring 1 are fixed into a whole, so that the spring is not easy to deform when being pulled out from the electrical casing.

In the preferred embodiment, the spring 1 is prepared by tempering a flat steel wire, the spring 1 is quenched at high temperature, and the surface of the spring is subjected to electroplating or electrophoresis treatment; factors that affect the service life of the spring are yield strength, surface condition, dimensional effect, and the like, so by these operations, the service life of the spring 1 can be increased.

Preferably, the pull rope 2 is a steel wire rope, so that the steel wire rope is firmer and has long service life.

Finally, it should be noted that the above embodiments are only used for illustrating the technical method of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical method of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. The tensile spring pipe bender is characterized by comprising a spring (1) and a pull rope (2), wherein the pull rope (2) is positioned in the spring (1), and at least one end of the pull rope is connected with the end part of the spring (1).

2. A tension spring tubing bender as claimed in claim 1, characterized in that said spring (1) comprises a spring body (11) and shackles (12) arranged at both ends of the spring body (11), at least one end of the pull string (2) being connected to the shackles (12) of the spring (1).

3. A tension spring tubing bender as claimed in claim 2, characterized in that it further comprises a pull wire (3), said pull wire (3) being connected to the loop (12) of the spring body (11).

4. A tension spring tubing bender as claimed in claim 2, wherein said spring body (11) comprises a central structure and narrow end structures on either side of the central structure, said narrow end structures having an outer diameter which tapers outwardly along one side of the central structure, said shackle (12) being fixedly mounted at the outer end of the narrow end structures.

5. A tension spring pipe bender as claimed in claim 1, wherein the spring (1) is made by tempering a flat steel wire, said spring (1) is quenched at high temperature, and its surface is treated by electroplating or electrophoresis.

6. A tension spring tubing bender as claimed in claim 1, wherein the pull cord (2) is a steel wire rope.