CN107645075A - Spiral wire barrel - Google Patents

Abstract

The present invention is applied to electric wire connecting junction technical field, there is provided a kind of spiral wire barrel.The spiral wiring pipe device includes：Fixed sleeving, the middle part of outer wall are provided with external screw thread；Revoling tube, one end are provided with internal thread, are internally provided with the truncated cone-shaped sleeve pipe that can be rotated along the axis of revoling tube；Wherein, the external diameter of fixed sleeving is less than the maximum outside diameter of truncated cone-shaped sleeve pipe；Fixed sleeving and revoling tube are by internal thread and externally threaded mating connection, and fixed sleeving is between revoling tube and truncated cone-shaped sleeve pipe.The revoling tube of the device will be forced on the fixed sleeving provided with the water chestnut groove of umbrella six, wrapped up fastening, the contact area of wire is not less than the contact area of original wire, firmly install, therefore water-proofing treatment place and wire is needed to need reconnect etc. in extensive range in fracture suitable for underground line etc., and compressed using revoling tube, it can effectively shorten the time of wiring, improve installation effectiveness.

Description

Spiral Conduit

technical field

The invention belongs to the technical field of wiring, in particular to a spiral wiring tube.

Background technique

Power supply companies mainly use copper wires or aluminum wires to transmit electric energy to thousands of households, among which aluminum wires are mostly used because they are cheap and easy to maintain. Wire connection is the most important basic skill of maintenance electricians. It is a skill often used in line installation and maintenance. The basic requirements for wire connection are as follows: good electrical contact, that is, small contact resistance; sufficient mechanical strength; connection The insulation strength at the place is not lower than the insulation strength of the wire itself. Because the aluminum wire is easy to oxidize and the resistivity of the oxide film is high, the connection of single-strand wires and the connection of multi-strand wires have high technical requirements. The traditional wiring method is to braid two or more wires together to achieve a certain connection strength when they are connected, which is time-consuming and laborious. Generally, it is difficult for electricians to complete the wiring according to all the wiring requirements. When wiring, they generally follow the principle of "overpowering" and do things hastily. However, this will make the joints prone to heat and oxidation during use, resulting in poor contact of the line.

Another common method is to use the crimping method to wire, that is, use crimping pliers to flatten a section with two ends, but if the force is too small during the crimping process, the contact will be poor, and if the force is too large, the wires that need to be crimped will be broken. The crimping pliers are inconvenient to carry when used under heavy load, which brings great difficulty to the electrician.

There is another kind of parallel trench clamp (parallel trench clamp is used for the connection of small and medium-sized aluminum strands or steel-cored aluminum strands and steel strands of overhead lightning conductors at positions that do not bear tension, and is also used for non-linear towers. Jumper connection), the appearance is beautiful, but it needs to be installed according to the actual conditions. Because of its special shape, it is not easy to do insulation treatment in some working environments (such as after the buried wire is broken, use a special-shaped parallel groove clamp to connect it) Insulation is difficult to deal with, and waterproof insulation needs to be considered, etc.), which makes a large part of the place unusable, which makes the special-shaped parallel trench clamps have certain limitations.

Contents of the invention

The purpose of the present invention is to provide a spiral wire conduit, which aims to solve the problem of poor contact caused by too little force during the connection process in the prior art when disconnected buried wires are connected in places that require waterproof treatment, and too much force will cause the connection to be broken. The wires that need to be crimped are broken and the problems of waterproof insulation are difficult to deal with.

In order to achieve the above object, the technical solution adopted in the present invention is: a spiral wire conduit, comprising:

The fixed sleeve has an external thread in the middle of the outer wall;

A rotating sleeve, one end is provided with an internal thread, and a frustum-shaped sleeve capable of rotating along the axis of the rotating sleeve is arranged inside;

Wherein, the outer diameter of the fixed sleeve is smaller than the maximum outer diameter of the frustum-shaped sleeve; the fixed sleeve and the rotating sleeve are connected through the internal thread and the external thread, and the The fixed sleeve is located between the rotating sleeve and the frustum-shaped sleeve.

Further, the external thread includes a left thread and a right thread, the left thread and the right thread are threads in opposite directions, and a sealing ring is provided at the tail end of the rotating sleeve and the tail end of the truncated cone sleeve;

The tail end of the rotating sleeve is the opposite end of one end of the rotating sleeve, and the tail end of the frustum-shaped sleeve is the opposite end corresponding to the position of the largest outer diameter of the frustum-shaped sleeve .

Further, there are two rotating sleeves, and the ends of the two rotating sleeves provided with internal threads are connected to the fixed sleeve.

Further, both sides of the external thread of the outer wall of the fixing sleeve are provided with umbrella-shaped hexagonal grooves cut into gaps along the length direction of the fixing sleeve.

Further, the position corresponding to the internal thread of the rotating sleeve is provided with a hexagonal angle in the inner diameter of the rotating sleeve.

Further, the fixed sleeve and the rotating sleeve are clamped through the umbrella-shaped hexagonal groove of the fixed sleeve and the hexagonal inner diameter of the rotating sleeve, and are connected through the external thread and the internal thread, and will be placed on the The wires to be wired in the fixed sleeve are firmly pressed.

Further, the inner wall of the rotating sleeve is provided with a first locking groove along the circumferential direction, and the outer wall of the frustum-shaped sleeve is provided with a second locking groove along the circumferential direction, and the first locking groove and the The positions of the second card slots correspond to each other, and rolling devices are arranged in the first card slots and the second card slots.

Further, the rolling device is a ball or a roller.

Further, the number of the first card slots is multiple, and the number of the second card slots corresponds to the number of the first card slots.

Further, the fixed sleeve is a soft tube with good electrical conductivity, and the outer wall of the rotating sleeve is provided with an insulating layer.

The beneficial effects of the embodiment of the present invention compared with the prior art include: In the embodiment of the present invention, the outer wall of the fixed sleeve is provided with an external thread and one end of the rotating sleeve is provided with an internal thread, and the fixed sleeve and the rotating sleeve are connected through the external thread and the internal thread. The casing is fixed, and the rotating casing is provided with a truncated conical casing that can rotate along the axis of the rotating casing. The truncated conical casing gradually becomes larger from the corresponding end of the internal thread to the other end, forming a truncated circular shape with a shape of The length is a frustum-shaped sleeve, and the frustum-shaped sleeve and the rotating sleeve act synchronously. When installing and wiring, the fixed sleeve is fixed between the rotating sleeve and the The trapezoidal sleeve forms a single body.

Further, the inner wall of the rotating sleeve and the outer wall of the truncated cone-shaped sleeve are provided with card slots, and fixed balls are arranged in the card slots. Through the action of the balls, the rotating sleeve and the truncated-conical sleeve move synchronously and reduce the distance between them. Friction, there is a sealing ring between the tail end of the rotating sleeve and the tail end of the frustum-shaped sleeve, so as to achieve the waterproof effect; the outer wall of the fixed sleeve is provided with an umbrella-shaped hexagonal groove and the corresponding position of the internal thread of the rotating sleeve There is a hexagonal angle in the inner diameter of the rotating sleeve, and the fixed sleeve and the rotating sleeve are clamped through the umbrella-shaped hexagonal groove of the fixed sleeve and the hexagonal inner diameter of the rotating sleeve, and are fastened by the external thread and the internal thread, and Firmly press the wires to be wired; when the fixed sleeve and the rotating sleeve are tightened, between the fixed sleeve, the rotating sleeve and the frustum-shaped sleeve, due to the large internal friction, the rotating sleeve and the The frustum-shaped sleeve is difficult to move to the fixed sleeve. The fixed sleeve, the rotating sleeve and the frustum-shaped sleeve gradually form a whole. The fixed sleeve will undergo elastic deformation and its shape is close to the frustum-shaped. It will be firmly fastened by the fixed sleeve. When the wire is energized, the current will be transmitted from one end to the other through the fixed sleeve, so that the broken wire is reconnected, ensuring the flow of current.

Description of drawings

Fig. 1 is a schematic diagram of a fixed sleeve provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of a rotating sleeve provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of the docking of the fixed sleeve and the rotating sleeve provided by the embodiment of the present invention.

Among the figure: 101, fixed sleeve, 102, external thread, 103, umbrella-shaped hexagonal groove, 104, outer diameter of fixed sleeve, 105, left thread, 106, right thread, 201, rotating sleeve, 202, circle Bench-shaped sleeve, 203, first slot, 204, second slot, 205, ball, 206, internal thread, 207, hexagonal inner diameter of rotating sleeve, 208, seal ring, 209, one end of rotating sleeve, 210 , the tail end of the cone-shaped casing, 211, the inner diameter of the tail end of the cone-shaped casing, 212, the maximum outer diameter of the cone-shaped casing, 213, the insulating layer, 214, the tail end of the rotating casing, 215, the sealing ring Diameter, 301, wire to be connected.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Please refer to FIG. 1 to FIG. 3 together, and now the spiral connection tube provided by the embodiment of the present invention will be described. The spiral wire tube includes a fixed sleeve 101 and a rotating sleeve 201 . Specifically, the middle part of the outer wall of the fixing sleeve 101 is provided with an external thread 102 . One end 209 of the rotating sleeve 201 is provided with an internal thread 206 , and the inside of the rotating sleeve 201 is provided with a frustum-shaped sleeve 202 capable of rotating along the axis of the rotating sleeve 201 . Wherein, the outer diameter 104 of the fixed sleeve 101 is less than the maximum outer diameter 212 of the frustum-shaped sleeve 202, the outer diameter 104 of the fixed sleeve 101 and the maximum outer diameter 212 of the frustum-shaped sleeve 202 are designed with Nesting when the fixed sleeve 101 and the rotating sleeve 201 are wired. The fixed sleeve 101 and the rotating sleeve 201 are connected through the cooperation between the internal thread 206 and the external thread 102, and the fixed sleeve 101 is located between the rotating sleeve 201 and the frustum-shaped sleeve. Between 202.

In this embodiment, referring to Fig. 1 and Fig. 2, the outer wall of the fixed sleeve 101 is provided with an external thread 102 and one end 209 of the rotating sleeve 201 is provided with an internal thread 206, and the fixed sleeve 101 and the The rotating sleeve 201 is fixed, and the rotating sleeve 201 is provided with a truncated conical sleeve 202 that can rotate along the axis of the rotating sleeve 201. The truncated conical sleeve 202 gradually becomes larger from the corresponding end of the internal thread 206 to the other end, It is surrounded by a truncated cone, and its shape is elongated into a truncated circular sleeve 202. In this embodiment, the truncated circular sleeve 202 and the rotating sleeve 201 act synchronously. When installing and wiring, the fixed sleeve 101 is fixed on the rotating sleeve 201 Between the truncated conical sleeve 202 , the fixed sleeve 101 , the rotating sleeve 201 and the truncated conical sleeve 202 form a whole.

Further, please refer to FIGS. 1 to 3 together. The external thread 102 includes a left thread 105 and a right thread 106. The left thread 105 and the right thread 106 are threads in opposite directions. The tail end 214 of the rotating sleeve 201 is connected to the A sealing ring 208 is provided at the tail end 210 of the frustum-shaped sleeve 202 . The tail end 214 of the rotating sleeve 201 is the opposite end of the end 209 of the rotating sleeve 201, and the tail end 210 of the frustum-shaped sleeve 202 is the maximum outer diameter 212 of the frustum-shaped sleeve 202 position at one end corresponding to the opposite position.

Further, the number of the rotating sleeve 201 is two, and one end of the two rotating sleeves 201 provided with internal threads 206 is connected with the fixed sleeve 101 .

Specifically, in this embodiment, referring to FIG. 1 , the external thread 102 of the fixing sleeve 101 includes a left thread 105 and a right thread 106 . The direction of the left thread 105 and the right thread 106 are opposite threads, and a rotating sleeve 201 is connected with the fixed sleeve 101 through the left thread 105 of the fixed sleeve 101, and the other is connected through the right thread 106 of the fixed sleeve 101. A rotating sleeve 201 is matedly connected with the fixed sleeve 101 . One end of the reverse position of one end 209 of the rotating sleeve 201 is the tail end 214 of the rotating sleeve 201, and one end of the reverse position corresponding to the position of the maximum outer diameter 212 of the frustum-shaped sleeve 202 is the frustum-shaped sleeve 202 The tail end 210 of the rotating sleeve 201 and the tail end 210 of the truncated cone sleeve 202 are provided with a sealing ring 208 . In this embodiment, the inner diameter 211 of the tail end 210 of the truncated conical sleeve 202 is 35 mm, and the diameter 215 of the sealing ring 208 is 40 mm. The waterproof effect is achieved through the sealing ring 208 .

Further, the two sides of the external thread 102 on the outer wall of the fixing sleeve 101 are provided with umbrella-shaped hexagonal grooves 103 cut into gaps along the length direction of the fixing sleeve 101 .

Specifically, referring to Fig. 1, the outer wall of the fixed sleeve 101 is divided into six equal sections of umbrella-shaped hexagonal grooves 103 along the length direction of the vertical cross-section of the fixed sleeve 101, and the middle of the umbrella-shaped hexagonal grooves 103 is 3-5mm. The gap is reserved for the deformation of the fixed sleeve 101 due to the extrusion force.

Further, the part corresponding to the internal thread 206 of the rotating sleeve 201 is provided with a hexagonal angle 207 in the inner diameter of the rotating sleeve 201 .

Specifically, in this embodiment, referring to FIG. 2 , the inner wall of the rotating sleeve 201 is equally divided into hexagonal angles 207 with an inner diameter of the rotating sleeve 201. 103 corresponds, and it is also convenient to fasten with a wrench.

Further, the fixed sleeve 101 and the rotating sleeve 201 are clamped through the umbrella-shaped hexagonal groove 103 of the fixed sleeve 101 and the inner diameter hexagonal angle 207 of the rotating sleeve 201, and the outer thread 102 and the inner thread 206 are mated and connected, and the wire 301 to be wired placed in the fixed sleeve 101 is firmly pressed.

Specifically, in this embodiment, referring to FIG. 3 , the rotating sleeve 201 and the fixed sleeve 101 are snapped together by the inner diameter hexagonal angle 207 of the rotating sleeve 201 and the umbrella-shaped hexagonal groove 103, and the rotating sleeve 201 and the fixed sleeve 101 Fixed connection, and then through the cooperative connection between the external thread 102 and the internal thread 206, the rotating sleeve 201 and the fixed sleeve 101 are fastened to each other, wherein the wires 301 to be wired placed in the fixed sleeve 101 are peeled respectively, and the wires to be wired The wire core of the wire 301 is in contact with the inside of the fixed sleeve 101 or the wire cores are in contact with each other, and the rotating sleeve 201 and the truncated conical sleeve 202 are placed between the rotating sleeve 201 and the truncated circular sleeve 202 through the action of force. The fixing sleeves 101 between the sleeves 202 gradually form a whole, and the wires 301 to be wired are firmly fixed and fastened by the fixing sleeves 101 .

Further, the inner wall of the rotating sleeve 201 is provided with a first slot 203 arranged in the circumferential direction, and the outer wall of the frustum-shaped sleeve 202 is provided with a second slot 204 arranged in the circumferential direction. The card slot 203 corresponds to the second card slot 204 , and a rolling device is arranged in the first card slot 203 and the second card slot 204 .

Further, the rolling device is a ball 205 or a roller.

Specifically, in this embodiment, referring to FIG. 2 , slots are provided on the inner wall of the rotating sleeve 201 and the outer wall of the frustum-shaped sleeve 202 , and the slots include a first slot 203 and a second slot 204 , wherein the rotating sleeve The inner wall of the tube 201 is set as the first locking groove 203 along the circumferential direction, and the outer wall of the frustum-shaped sleeve 202 is set as the second locking groove 204 along the circumferential direction. Through the first locking groove 203 and the second locking groove 204 securely connects the fixed sleeve 101 to the frustum-shaped sleeve 202 . A rolling device is provided between the first slot 203 and the second slot 204. The rolling device in this embodiment is a ball 205. Through the action of the ball 205, the rotating sleeve 201 and the frustum-shaped sleeve 202 move synchronously and reduce friction between the two.

Further, the number of the first card slots 203 is multiple, and the number of the second card slots 204 corresponds to the number of the first card slots 203 .

Specifically, referring to FIG. 2, a plurality of first slots 203 are provided on the inner wall of the rotating sleeve 201, and second slots 204 of the same position and the same number are provided on the outer wall of the frustum-shaped sleeve 202. The first locking groove 203 and the second locking groove 204 form a corresponding relationship, and the rotating sleeve 201 and the frustum-shaped sleeve 202 can move synchronously, reducing friction caused by rotation.

Furthermore, the fixed sleeve 101 is a soft tube with good electrical conductivity, and the outer wall of the rotating sleeve 201 is provided with an insulating layer 213 .

Specifically, in this embodiment, referring to FIG. 1 and FIG. 2 , the fixed sleeve 101 is made of an aluminum alloy tube with good electrical conductivity, and an insulating layer 213 is provided on the outer wall of the rotating sleeve 201, which saves the need for insulating tapes. Safety.

In this embodiment, referring to FIG. 3 , the spiral conduit includes a fixed sleeve 101 and a rotating sleeve 201 . The middle part of the outer wall of the fixing sleeve 101 is provided with an external thread 102 . One end 209 of the rotating sleeve 201 is provided with an internal thread 206 , and the inside of the rotating sleeve 201 is provided with a frustum-shaped sleeve 202 capable of rotating along the axis of the rotating sleeve 201 . Wherein, the outer diameter 104 of the fixed sleeve 101 is less than the maximum outer diameter 212 of the frustum-shaped sleeve 202, the outer diameter 104 of the fixed sleeve 101 and the maximum outer diameter 212 of the frustum-shaped sleeve 202 are designed with Nesting when the fixed sleeve 101 and the rotating sleeve 201 are wired. The fixed sleeve 101 and the rotating sleeve 201 are connected through the cooperation between the internal thread 206 and the external thread 102, and the fixed sleeve 101 is located between the rotating sleeve 201 and the frustum-shaped sleeve. Between 202.

The wire 301 to be connected is passed through the tail end 210 of the frustum-shaped sleeve 202 placed on the left side of the fixed sleeve 101 , and passes through the fixed sleeve 101 to the external thread 102 of the fixed sleeve 101 . Use the same method to pass the wire 301 to be wired from the tail end 210 of the frustum-shaped sleeve 202 placed on the right side of the fixed sleeve 101 , through the fixed sleeve 101 to the external thread 102 of the fixed sleeve 101 . Wherein, the outer diameter 104 of the fixed sleeve 101 is 35mm, and the maximum outer diameter 212 of the frustum-shaped sleeve 202 is 45mm.

Through the umbrella-shaped hexagonal groove 103 and the inner diameter hexagonal angle 207 of the rotating sleeve 201, one end of the rotating sleeve 201 is clamped with the fixed sleeve 101; Mate connection.

Use a wrench to rotate and fix the umbrella-shaped hexagonal groove 103 of the sleeve 101 , and install the end of the sleeve 101 that is not rotated and fixed with a wrench into the frustoconical sleeve 202 . During installation, the entire rotating sleeve 201 will move to the external thread 102 of the fixed sleeve 101 under the action of external force, and slowly shrink according to a certain size; 202, due to the relatively large internal friction, the rotating sleeve 201 and the frustum-shaped sleeve 202 are difficult to move toward the fixed sleeve 101, and the fixed sleeve 101, the rotating sleeve 201 and the frusto-conical sleeve 202 gradually form a whole .

After the fixed sleeve 101 is integrated with the rotating sleeve 201 and the frustum-shaped sleeve 202, the fixed sleeve 101 is elastically deformed and its shape is close to the frustum of a cone. At this time, the wire 301 to be connected will be firmly held by the rotating sleeve. 201 and the fixed sleeve 101 are fixed, and finally the broken wires are reconnected.

After the wire is energized, most of the conductor current flows through the fixed sleeve 101, only a small amount of current flows through the rotating sleeve 201, and the current is transmitted from one end to the other through the fixed sleeve 101, ensuring the current flow.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. spiral wire barrel, it is characterised in that including：

Fixed sleeving, the middle part of outer wall are provided with external screw thread；

Revoling tube, one end are provided with internal thread, are internally provided with the truncated cone-shaped that can be rotated along the axis of the revoling tube Sleeve pipe；

Wherein, the external diameter of the fixed sleeving is less than the maximum outside diameter of the truncated cone-shaped sleeve pipe；The fixed sleeving and the rotation Pivoted housing pipe is by the internal thread and the externally threaded mating connection, and the fixed sleeving is located at the revoling tube and institute State between truncated cone-shaped sleeve pipe.

2. spiral wire barrel according to claim 1, it is characterised in that the external screw thread includes left-hand thread and right spiral shell Line, the left-hand thread are opposite direction screw thread with right-hand thread, and the tail end of revoling tube is provided with sealing ring with the tail end of truncated cone-shaped sleeve pipe；

The tail end of the revoling tube for the revoling tube one end reverse position one end, the tail end of the truncated cone-shaped sleeve pipe For reverse position one end corresponding to the maximum outside diameter opening position of the truncated cone-shaped sleeve pipe.

3. spiral wire barrel according to claim 2, it is characterised in that the number of the revoling tube be two, two The individual revoling tube sets female one end to be connected with the fixed sleeving.

4. spiral wire barrel according to claim 1, it is characterised in that the external screw thread both sides of the fixed sleeving outer wall Provided with being cut into the apertured water chestnut groove of umbrella six along fixed sleeving length direction.

5. spiral wire barrel according to claim 4, it is characterised in that position corresponding to the internal thread of the revoling tube Put part and be provided with the water caltrop of revoling tube internal diameter six.

6. spiral wire barrel according to claim 5, it is characterised in that the fixed sleeving leads to the revoling tube The water chestnut groove of umbrella six and the water caltrop clamping of revoling tube internal diameter six of fixed sleeving are crossed, and is connected by the external screw thread and screw-internal thread fit Connect, and the wire for treating wiring being placed in the fixed sleeving is firmly compressed.

7. spiral wire barrel according to claim 1, it is characterised in that be provided with the revoling tube inwall along week To the first neck of setting, the second circumferentially arranged neck, first neck are provided with the truncated cone-shaped sleeve outer wall It is corresponding with second groove position, and it is provided with tourelle in first neck and second neck.

8. spiral wire barrel according to claim 7, it is characterised in that the tourelle is ball or roller.

9. spiral wire barrel according to claim 7, it is characterised in that the number of first neck is multiple, and Second neck is corresponding with the first neck number.

10. the spiral wire barrel according to any one of claim 1 to 9, it is characterised in that the fixed sleeving is conduction Soft pipe of good performance, the revoling tube outer wall are provided with insulating barrier.