CN214958554U - Electrician threading pipe - Google Patents

Abstract

The application discloses an electrician threading pipe, which comprises a pipe body and a joint, wherein the included angle of the plane of the axis where the two ends of the joint are located is more than 45 degrees, a rotating wheel is installed in the joint, and the central shaft of the rotating wheel is perpendicular to the plane where the central line of the joint is located; be provided with the ladder groove on the first inside wall of both ends of pipe body, the both ends head that connects be provided with the go-between that the ladder groove suited, the internal diameter of go-between with the internal diameter of pipe body equals. The utility model discloses a creative set up the runner in connecting, the original sliding friction of electric wire and joint inner wall changes rolling friction into when will trading the line, has reduced the drag resistance when trading the line greatly, has avoided making new and old wire joint pine take off and split even and trade the line failure because of the resistance is too big.

Description

Electrician threading pipe

Technical Field

The utility model relates to the technical field of pipeline, especially, relate to a threading pipe for circuit, concretely relates to electrician threading pipe.

Background

Electrician's threading pipe is when building construction or when fitment pre-buried or the later stage buries underground the pipeline under wall body or floor, and its usage is used for the threading for the hidden line of walking is realized to the circuit, avoids walking potential safety hazard and irregularity that the open line brought.

The structure of current threading pipe is fairly simple, adopts straight plastic tubing or PVC pipe cooperation cover to establish the joint on the threading pipe and realizes laying of threading pipeline more, and this kind of pipeline mainly is applicable to the circuit transformation and the new shop in the fitment stage, and when the circuit used a period of time to go wrong, perhaps when needing to trade the line because of the power increase with electrical apparatus, then very obvious drawback can appear. The threading pipe is mainly characterized in that step difference exists between the threading pipe joint and the inner wall of the threading pipe, so that the electric wire is easy to be clamped at the step difference position at the end head during secondary threading, and the wire replacement is difficult. Secondly, more importantly, the threading pipeline has more right-angle joints, and when the line is changed, the phenomena of friction and clamping stagnation between the electric wire and the inner wall of the joint are very serious, so that the line is extremely difficult to change.

Above-mentioned problem almost all can meet more or less in the circuit transformation in-process when current house decoration, consequently, to this realistic technical problem, need a threading pipe that makes things convenient for later stage to trade line transformation and reform transform.

SUMMERY OF THE UTILITY MODEL

In order to solve present threading pipe and be unfavorable for the secondary and trade the line, lead to the circuit jamming easily, frictional resistance is big and the problem of the difficulty of trading the line, this application provides an electrician's threading pipe for solve when carrying out the secondary and trade the line, the problem of electric wire jamming, jam, make the electric wire can be relaxed remove in the threading pipeline.

The circuit line changing is an indispensable part in the decoration circuit reconstruction project, most of the line pipes are pre-buried in a wall body by a construction unit when a house is built, the square number of the electric wires in the line pipes is often small, and the circuit power supply requirement after people are decorated cannot be met, so that the original electric wires are required to be replaced by the electric wires with larger square number, and more and larger power loads of electric appliances can be met. However, the wire pipe joints are more, and the bending angle is large, so that the wire changing resistance is huge. In practice, the new and old wires are bound together, the new wire is inserted by taking out the old wire, and the binding of the new and old wires has irregular surfaces, so that the resistance is increased when the joint is bent.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

an electrical threading pipe comprises a pipe body and a joint, wherein the included angle of the plane of the axis where two ends of the joint are located is more than 45 degrees, a rotating wheel is installed in the joint, and the central shaft of the rotating wheel is perpendicular to the plane where the central line of the joint is located; be provided with the ladder groove on the first inside wall of both ends of pipe body, the both ends head that connects be provided with the go-between that the ladder groove suited, the internal diameter of go-between with the internal diameter of pipe body equals. The reason why the bending angle of the joint should be greater than 45 ° is mainly based on two aspects:

1. if the bending angle of the joint is less than 45 degrees, the joint is generally unreasonable in wiring, and can be corrected by other wiring modes, so that a small-angle elbow cannot be used in actual wiring.

2. The too small bending angle of the joint is not favorable for installing the rotating wheel, even if the joint can be installed, the circumferential length of the joint needs to be increased, the manufacturing cost and difficulty of the joint are directly increased, and the wiring of the wiring is not a preferred mode. Therefore, based on the above two points, the bending angle of the joint needs to be greater than 45 °.

The working and structure principle of the electrician threading pipe is as follows:

when the wire is replaced, the wire can be tightly attached to the inner wall of the inner ring of the connector when being pulled, the larger the pulling force applied to the wire in the wire replacing process is, the larger the friction force with the inner wall of the connector is, and the wire has certain strength and hardness, so that the passing difficulty is further increased when the connection part of the wire passes through the bent channel of the connector. In order to solve the practical problem, in the scheme adopted by the electrician threading pipe, the inner diameters of the joint and the pipe body are equal, so that the negative influence on threading caused by poor connection is eliminated, and the clamping stagnation problem is further eliminated, so that the problem of clamping stagnation caused by poor connection of the end of an electric wire or the connection position of the electric wire in the bending position inside the joint can be avoided. What is more, the electric wire is at the pulling in-process, and the position of the contact of the bending department with the joint changes into the inner wall of runner by original joint inner circle inner wall, has changed rolling friction into by the sliding friction among the original prior art for resistance in the line changing process reduces greatly, and in time same electric wire is when a plurality of joints, equally can very light pull out, realizes the technological effect of quick line changing. Because the length of pipe body can be according to the random increase or the reduction of installation environment for pre-buried length can adapt to the construction conditions on-the-spot completely, simultaneously, the pipe body adopts mutual nested connection with the joint, utilizes conventional excessive cooperation or slight interference fit can realize quick connection, and the combination is simple quick. Because the threading pipe is an embedded part, the use effect can be achieved as long as the joint and the pipe body are not naturally fallen off, so that the nesting precision requirement between the joint and the pipe body is not high, and the requirement can be met by adopting the nesting connection tolerance of the conventional pipeline.

In order to facilitate manufacturing and installation of the joint, the joint particularly adopts the following structural arrangement, and specifically, the joint includes an outer shell, a first flip cover and a second flip cover which are mutually buckled are arranged at an inner ring position of the outer shell, and both the first flip cover and the second flip cover are hinged with the outer shell. The first flip and the second flip that set up relative setting can make things convenient for the installation of runner, also make things convenient for the drawing of patterns that connects simultaneously, if the shell body that connects adopts integrated into one piece's structure, will increase the degree of difficulty to the installation and the change of runner, and the mould complexity that corresponds simultaneously also can increase. The first flip cover and the second flip cover are hinged with the outer shell in a conventional shaft pin mode, and the connection mode has the advantages of high structural stability and simplicity in assembly.

For the convenient degree of installation of further promotion joint, reduce the manufacturing degree of difficulty, preferably, all be provided with the through-hole that is used for installing the pivot on first flip and the second flip, it is provided with to rotate on the pivot the runner. When the rotating wheel is installed, the second turnover cover is buckled on the outer shell, the rotating shaft is inserted into the through hole, the rotating wheel is installed on the rotating shaft, and the first turnover cover is buckled on the second turnover cover, so that the other end of the rotating shaft is inserted into the through hole in the first turnover cover. So that the rotating wheel is firmly fixed in the joint and can only rotate around the rotating shaft.

In order to increase the integrity and stability of the joint, preferably, the first flip cover and the second flip cover are respectively and correspondingly provided with a connecting hole and a connecting column which are buckled with each other.

In order to further reduce the clamping stagnation phenomenon between the connection part of the electric wire and the rotating wheel when the wire is changed, preferably, guide plates for guiding the electric wire to penetrate are fixedly arranged on the inner walls of the two end heads of the joint, the other ends of the guide plates extend towards one end close to the rotating wheel and are in contact with the rotating wheel, the guide plates are arranged in an arc shape, and the inner diameter of each guide plate is the same as that of the inner wall of the joint. The purpose of setting up the deflector is further leads to the electric wire, because the runner is close to the clearance of piecing inner circle inner wall department very little, the design of electric wire is through the space between runner and the outer lane inner wall of piecing through the route, makes the electric wire just can hug closely the runner all the time at the pulling in-process like this to play the effect of economizing on power. But because the smooth degree that the runner that sets up can destroy the joint inner wall, cause the electric wire to appear the phenomenon of jamming in the position between runner and joint inner circle inner wall easily, so both ends head to the direction that is close to the runner at the joint all is provided with the deflector, makes the electric wire come from which direction no matter, all can only remove along predetermined passageway, can not appear the problem of jamming. Although the structural design is very simple, the anti-blocking effect is very outstanding and obvious, if the wire is not guided by the guide plate, when the wire is threaded, once the wire enters the position between the rotating wheel and the inner wall of the joint inner ring, the wire needs to be threaded repeatedly for many times until the wire leaves the position, and the wire can not pass through the position smoothly; after the guide plate is arranged, the electric wire can be ensured to smoothly pass through the bending position of the connector only once. It should be noted that the bending angle of the joint is generally 90 °, but bends with other angles, such as 120 °, may also be made according to actual needs.

In order to always maintain good contact between the wire and the rotating wheel, the radial diameter of the rotating wheel is preferably gradually increased from the middle to the two ends.

It is worth mentioning that: the utility model relates to wire replacement which means that the wire is installed in the threading pipeline and the old wire needs to be replaced by a new wire; the related threading refers to an operation that no electric wire exists in the pipeline and a new electric wire needs to be threaded into the pipeline pre-buried in the wall.

Has the advantages that:

the utility model discloses a creative set up the runner in connecting, the original sliding friction of electric wire and joint inner wall changes rolling friction into when will trading the line, has reduced the drag resistance when trading the line greatly, has avoided making new and old wire joint pine take off and split even and trade the line failure because of the resistance is too big.

And simultaneously, the utility model discloses the joint that sets up is the same completely with the inner wall diameter of this pipe body, has avoided the jump of joint department to lead to the problem of electric wire end jamming for it is more smooth and easy to trade line, threading.

Furthermore, the utility model discloses still all be provided with the deflector connecting the both ends head, ensure that the electric wire can once only pass through connecting when the threading, the electric wire end is very difficult when passing through joint bending position because of the uncontrollable point of penetration when having solved the threading, need relapse the threading and just can pass through a joint several times, the problem of the threading inefficiency that leads to.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is an axonometric view of the structure of the invention.

Fig. 2 is a structural perspective view of the joint in an open state.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a sectional view taken along a sectional symbol a-a in fig. 3.

Fig. 5 is an enlarged view of the structure of region C in fig. 4.

Fig. 6 is a front view of fig. 2.

Fig. 7 is a sectional view taken along a section symbol B-B in fig. 6.

In the figure: 1-a tube body; 11-a step groove; 2-a linker; 21-an outer shell; 22-a connecting ring; 23-a first flip; 231-connecting holes; 24-a second flip; 241-connecting column; 242-through holes; 25-a rotating wheel; 26-a rotating shaft; 27-a guide plate; 3-electric wire.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being 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 application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

an electrical threading pipe shown in figures 1 and 4 in the specification comprises a pipe body 1 and a joint 2, wherein an included angle of an axial plane where two ends of the joint 2 are located is greater than 45 degrees, a rotating wheel 25 is installed in the joint 2, and a central shaft of the rotating wheel 25 is perpendicular to the plane where a central line of the joint 2 is located; be provided with ladder groove 11 on the first inside wall of both ends of pipe body 1, the both ends head that connects 2 be provided with the go-between 22 that ladder groove 11 suited, go-between 22's internal diameter with the internal diameter of pipe body 1 equals.

The working and structural principle is as follows:

when the wire is replaced, the wire 3 is pulled, the wire 3 can be tightly attached to the inner wall of the inner ring of the connector 2, the larger the pulling force applied to the wire 3 in the wire replacing process is, the larger the friction force with the inner wall of the connector 2 is, and the wire 3 has certain strength and hardness, so that the passing difficulty is further increased when the connection part of the wire 3 passes through the bent channel of the connector 2. In order to solve the practical problem, in the scheme adopted by the electrician threading pipe, the inner diameters of the joint 2 and the pipe body 1 are equal, so that the negative influence on threading caused by poor connection is eliminated, and the problem of clamping stagnation is further eliminated, so that the problem of clamping stagnation caused by poor connection of the inner wall of the pipe when the end or the connection position of the electric wire 3 passes through the bending position inside the joint 2 is avoided, and the scheme is specifically shown in fig. 4 and 5. More importantly, the contact position of the wire 3 with the bending part of the connector 2 in the pulling process is changed from the original inner ring inner wall of the connector to the inner wall of the rotating wheel 25, which is shown by combining the structure of the rotating wheel 25 shown in fig. 2 and the position relation between the wire 3 and the rotating wheel 25 shown in fig. 5. Sliding friction in the prior art is changed into rolling friction, so that resistance in the wire changing process is greatly reduced, the same wire 3 can be pulled out easily when passing through the plurality of connectors 2, and the technical effect of quickly changing the wire is achieved. Because the length of pipe body 1 can be according to the random increase or the reduction of installation environment for pre-buried length can adapt to the construction conditions on-the-spot completely, simultaneously, pipe body 1 and joint 2 adopt mutual nested connection, utilize conventional excessive cooperation or slight interference fit can realize quick connection, and the combination is simple quick. Because the threading pipe is an embedded part, the connection between the joint 2 and the pipe body 1 can achieve the using effect as long as the connection does not naturally fall off, so the nesting precision requirement between the joint 2 and the pipe body 1 is not high, and the requirement can be met by adopting the conventional pipeline nesting connection tolerance.

Example 2:

on the basis of the structure and principle of the embodiment 1, in order to facilitate the manufacture and installation of the connector 2, the embodiment of the present disclosure is further optimized as shown in fig. 1 to 7 of the specification, and the connector 2 particularly adopts the following structural arrangement, specifically, the connector 2 includes an outer housing 21, a first flip 23 and a second flip 24 that are mutually buckled are arranged at an inner ring position of the outer housing 21, and both the first flip 23 and the second flip 24 are hinged with the outer housing 21. The first flip 23 and the second flip 24 which are arranged oppositely can facilitate the installation of the rotating wheel 25, and simultaneously facilitate the demoulding of the joint 2, if the outer shell 21 of the joint 2 adopts an integrally formed structure, the difficulty will be increased for the installation and the replacement of the rotating wheel 25, and the complexity of the corresponding mould will also be increased. The first and second flaps 23 and 24 are hinged to the outer housing 21 by conventional pivot pins, which has the advantages of high structural stability and easy assembly.

In order to further improve the convenience of installing the lifting joint 2 and reduce the manufacturing difficulty, in this embodiment, the first flip 23 and the second flip 24 are both provided with a through hole 242 for installing the rotating shaft 26, and the rotating shaft 26 is rotatably provided with the rotating wheel 25. When the rotating wheel 25 is installed, the second flip cover 24 is firstly fastened to the outer housing 21, then the rotating shaft 26 is inserted into the through hole 242, then the rotating wheel 25 is installed on the rotating shaft 26, and finally the first flip cover 23 is fastened to the second flip cover 24, so that the other end of the rotating shaft 26 is inserted into the through hole 242 of the first flip cover 23. So that the wheel 25 is firmly fixed inside the joint 2 and can only rotate around the axis of rotation 26.

In order to increase the integrity and stability of the connector 2, the first flip cover 23 and the second flip cover 24 are respectively and correspondingly provided with a connecting hole 231 and a connecting post 241, which are fastened with each other.

In order to further reduce the clamping stagnation between the connection part of the electric wire 3 and the rotating wheel 25 when the wire is changed, it is preferable that guide plates 27 for guiding the electric wire 3 to penetrate are fixedly arranged on the inner walls of the two ends of the joint 2, the other ends of the guide plates 27 extend to one end close to the rotating wheel 25 and contact with the rotating wheel 25, the guide plates 27 are arranged in an arc shape, and the inner diameter of the guide plates is the same as that of the inner wall of the joint 2. Referring to fig. 2, 6 and 7 in particular, the purpose of the guiding plate 27 is to further guide the electric wire 3, since the gap between the rotating wheel 25 and the inner wall of the inner ring of the connector 2 is very small, the electric wire 3 is designed to pass through the space between the rotating wheel 25 and the inner wall of the outer ring of the connector 2, so that the electric wire 3 is always tightly attached to the rotating wheel 25 during the pulling process, thereby saving power. However, the smooth degree of the inner wall of the joint 2 is damaged by the arranged rotating wheel 25, so that the electric wire 3 is easy to be stuck at the position between the rotating wheel 25 and the inner wall of the inner ring of the joint 2, and the guide plates 27 are arranged at the two ends of the joint 2 in the direction close to the rotating wheel 25, so that the electric wire can only move along a preset channel no matter which direction the electric wire comes from, and the problem of sticking cannot occur. Although the structure is very simple, the anti-blocking effect is very outstanding and obvious, if the wire 3 enters the position between the rotating wheel 25 and the inner wall of the inner ring of the joint 2 during threading without the guiding function of the guide plate 27, the threading needs to be repeated for many times until the wire leaves the position, and the wire can not pass through the position smoothly; with the guide plate 27, it is possible to ensure that the electric wire 3 can pass through the bent position of the contact 2 only once. It should be noted that the bending angle of the joint is generally 90 °, but bends with other angles, such as 120 °, may also be made according to actual needs.

In order to always maintain good contact between the wire 3 and the rotor 25, the radial diameter of the rotor 25 is gradually increased from the middle to both ends. In the wire changing process, the wire 3 always has tension action, so that the wire 3 can always be kept in the contact of the middle position of the rotating wheel 25, the slipping of the wire 3 is avoided, and the friction resistance is reduced to the maximum extent.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (6)

1. The utility model provides an electrician threading pipe, includes pipe body (1) and joint (2), its characterized in that: the included angle of the plane of the axis where the two ends of the joint (2) are located is more than 45 degrees, a rotating wheel (25) is installed in the joint (2), and the central shaft of the rotating wheel (25) is perpendicular to the plane where the central line of the joint (2) is located; be provided with ladder groove (11) on the terminal inside wall of both ends of pipe body (1), the both ends head that connects (2) be provided with go-between (22) that ladder groove (11) suited, the internal diameter of go-between (22) with the internal diameter of pipe body (1) equals.

2. An electrical conduit as defined in claim 1, wherein: connect (2) including shell body (21), the inner circle position of shell body (21) is provided with first flip (23) and second flip (24) of mutual lock, first flip (23) and second flip (24) all with shell body (21) are articulated.

3. An electrical conduit as defined in claim 2, wherein: the first flip cover (23) and the second flip cover (24) are both provided with through holes (242) for installing the rotating shaft (26), and the rotating shaft (26) is rotatably provided with the rotating wheel (25).

4. An electrician conduit according to claim 2 or 3, wherein: the first flip cover (23) and the second flip cover (24) are correspondingly provided with a connecting hole (231) and a connecting column (241) which are buckled with each other respectively.

5. An electrical conduit as defined in claim 4, wherein: all fixed deflector (27) that are provided with guide wire (3) and penetrate on the both ends head inner wall of joint (2), the other end of deflector (27) is to being close to the one end extension of runner (25) and with runner (25) contact, deflector (27) are circular-arc setting, the internal diameter with the inner wall of joint (2) is the same.

6. An electrical conduit as defined in claim 5, wherein: the radial diameter of the rotating wheel (25) is gradually increased from the middle to the two ends.

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