CN209880997U

CN209880997U - Waterproof butt joint

Info

Publication number: CN209880997U
Application number: CN201921240608.6U
Authority: CN
Inventors: 黎佳琪; 冯广; 石鸣鸣; 孔立斌
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2019-12-31
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses a waterproof butt joint, include: the waterproof device comprises intermediate joints with two symmetrical ends, wherein the two ends of each intermediate joint are respectively connected with end joints which are symmetrical relative to the intermediate joints, an electric signal of one end joint can be transmitted to the other end joint through the intermediate joints, and a waterproof device is arranged between each end joint and the intermediate joint. The two ends of the intermediate joint are of symmetrical structures, and the end joints are respectively connected to the two ends of the intermediate joint, so that the two end joints are also set to be of symmetrical structures, when the end joints are machined, the end joints only need to be machined in the same type, the male joint and the female joint do not need to be machined respectively, and meanwhile, when the maintenance and the replacement are carried out, the end joints in the same type also only need to be taken, and the replacement can be carried out without distinguishing the male joint and the female joint. The waterproof device is arranged between the end connector and the middle connector, so that water cannot seep between the middle connector and the end connector, and the safety of the waterproof butt connector can be guaranteed.

Description

Waterproof butt joint

Technical Field

The utility model relates to a circuit butt joint technical field, more specifically say, relate to a waterproof butt joint.

Background

The waterproof connector can be applied to an environment with water as the name implies, and provides a safe and reliable connector. Scenarios that may be applied are for example: LED street lamps, lighthouses, pleasure boats, industrial equipment, watering lorries, and the like, all require the use of water joints.

The waterproof joint has the advantages that after the wire is processed in advance, the cable has the flexibility of being detachable and assembled, and the length and the strand number of the cable can be freely defined. The waterproof connector can enable the wire to have the advantage of being waterproof, and can deal with the conditions of outdoor rainy weather and the like.

The waterproof connector popular in the market at present has the characteristic of butt joint of a male socket and a female socket. In the practical application process, the distinction of the male head and the female head needs to be considered, for example, one side is the male head, the other half is the female head, and the female head needs to be used for replacement when the replacement is carried out. The detail brings trouble to the actual production process, and if the two ends are male (or female), rework is needed. Meanwhile, the number of the male heads and the female heads is in one-to-one correspondence, and one of the male heads and the female heads cannot be used.

In summary, how to provide a waterproof joint without distinguishing a male joint and a female joint and without potential safety hazards is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a waterproof butt joint without distinguishing male and female joints and without potential safety hazard.

In order to achieve the above object, the present invention provides the following technical solutions:

a waterproof docking head, comprising: the middle joint of both ends symmetry, the both ends of middle joint are connected with respectively about the end connection of middle joint symmetry, one the electrical signal accessible of end connection the middle joint transmits to another the end connection, the end connection with be equipped with watertight fittings between the middle joint.

Preferably, the peripheries of two ends of the middle joint are provided with external threads, the two end joints are sleeved with threaded covers which are respectively matched and connected with the two external threads, the rear ends of the two threaded covers are provided with pressing rings, the two end joints are provided with sealing rings, and the sealing rings are pressed on two end faces of the middle joint after the threaded covers are screwed down.

Preferably, a waterproof rubber ring is arranged on the ring surface of the end surface of the intermediate joint, which faces the sealing ring and is connected with the sealing ring.

Preferably, each of the end fittings has a connector wire connected thereto for connection with an external line.

Preferably, both ends of the intermediate joint are provided with sleeves, a plurality of contact pins are axially arranged in the sleeves along the sleeves, and each end joint is axially provided with a plurality of jacks for the contact pins to be inserted into.

Preferably, the sleeve at the two ends of the middle joint is internally provided with a positioner, and each end joint is provided with a positioning part which is matched with the positioner, so that the two ends of the middle joint are prevented from being respectively connected to the two end joints, and the two end joints can rotate relative to the middle joint.

Preferably, the locator is for following telescopic axial setting, and set up in bar arch on the sleeve inner wall, location portion is for following end fitting axial setting, and set up in bar groove on end fitting's the outer wall, the bar arch with the cooperation installation of bar groove.

Preferably, the outer walls of the two end connectors are provided with anti-slip lines convenient for pulling and inserting.

The utility model provides a pair of waterproof butt joint, include: the waterproof device comprises intermediate joints with two symmetrical ends, wherein the two ends of each intermediate joint are respectively connected with end joints which are symmetrical relative to the intermediate joints, an electric signal of one end joint can be transmitted to the other end joint through the intermediate joints, and a waterproof device is arranged between each end joint and the intermediate joint.

The two ends of the intermediate joint are of symmetrical structures, and the end joints are respectively connected to the two ends of the intermediate joint, so that the two end joints are also set to be of symmetrical structures, when the end joints are machined, the end joints only need to be machined in the same type, the male joint and the female joint do not need to be machined respectively, and meanwhile, when the maintenance and the replacement are carried out, the end joints in the same type also only need to be taken, and the replacement can be carried out without distinguishing the male joint and the female joint. The waterproof device is arranged between the end connector and the middle connector, so that water cannot seep between the middle connector and the end connector, and the safety of the waterproof butt connector can be guaranteed.

Drawings

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

Fig. 1 is a schematic connection diagram of a waterproof butt joint provided by the present invention;

fig. 2 is a front view of the intermediate joint provided by the present invention;

fig. 3 is a side view of an intermediate joint provided by the present invention;

fig. 4 is a schematic view of an end fitting provided by the present invention;

fig. 5 is a side view of an end fitting provided by the present invention.

In FIGS. 1-5:

1-connector wire, 2-end connector, 3-middle connector, 4-thread cover, 5-strip-shaped protrusion, 6-sleeve, 7-contact pin, 8-sealing ring, 9-anti-skid thread, 10-strip-shaped groove and 11-jack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a need not distinguish public head, female head, and do not have the waterproof butt joint of potential safety hazard.

Referring to fig. 1 to 5, fig. 1 is a schematic connection diagram of a waterproof butt joint provided by the present invention; fig. 2 is a front view of the intermediate joint provided by the present invention; fig. 3 is a side view of an intermediate joint provided by the present invention; fig. 4 is a schematic view of an end fitting provided by the present invention; fig. 5 is a side view of an end fitting provided by the present invention.

A waterproof docking head, comprising: the middle joint 3 with two symmetrical ends, the end joints 2 which are symmetrical relative to the middle joint 3 are respectively connected with the two ends of the middle joint 3, the electric signal of one end joint 2 can be transmitted to the other end joint 2 through the middle joint 3, and a waterproof device is arranged between the end joint 2 and the middle joint 3.

It should be noted that the intermediate joint 3 may be configured as a cylindrical housing or a rectangular housing, and when the cylindrical housing is provided, it should be noted that the end joint 2 needs to be inserted into the two ends of the intermediate joint 3 due to the insertion and matching of the end joint 2 and the intermediate joint 3, when considering the waterproof performance, the end joint 2 needs to be inserted into the two ends of the intermediate joint 3, or the two ends of the intermediate joint 3 need to be inserted into the end joint 2, that is, blind holes are provided at the two ends of the intermediate joint 3, the end joint 2 is integrally inserted, or the end joint 2 is provided with a blind hole, and the two ends of the intermediate joint 3 are respectively and integrally inserted. Therefore, after the intermediate adapter 3 is configured as a cylindrical shell, the end adapter 2 also needs to be configured as a cylindrical shell that is cooperatively connected with the intermediate adapter 3 to increase the tightness. The housings of the intermediate connector 3 and the end connector 2 may be made of insulating materials such as rubber or plastic.

The two ends of the intermediate joint 3 are respectively provided with a metal connecting rod or a metal connecting ring, the metal connecting rods or the metal connecting rings arranged at the two ends of the intermediate joint 3 are connected through a lead, and the metal connecting rods or the metal connecting rings are arranged in the shell of the intermediate joint 3, so that the safety can be improved while the transmission of electric signals is ensured.

The watertight fittings that sets up between end connection 2 and intermediate head 3 can set up the contact point department between the casing of end connection 2 and intermediate head 3 generally, and watertight fittings can select for use the material that compactness is good and the cost is lower after compression such as rubber or silica gel to make.

The both ends of intermediate head 3 are symmetrical structure, and end connection 2 connects respectively in the both ends of intermediate head 3, so, also set up two end connection 2 into symmetrical structure, add man-hour, end connection 2 only need process the same kind can, need not to carry out public head, female head and process respectively, also only need take the same kind end connection 2 can when the while maintenance is changed, needn't distinguish public head, female head and just can change. The waterproof device arranged between the end connector 2 and the middle connector 3 can ensure that water cannot seep between the middle connector 3 and the end connector 2, and the safety of the waterproof butt joint can be ensured.

On the basis of the above embodiment, as further preferred, the peripheries of both ends of the intermediate joint 3 are provided with external threads, the two end joints 2 are sleeved with threaded caps 4 respectively connected with the two external threads in a matching manner, the rear ends of the two threaded caps 4 are provided with compression rings, the two end joints 2 are provided with sealing rings 8, and the sealing rings 8 are compressed on both end surfaces of the intermediate joint 3 after the threaded caps 4 are screwed down.

It should be noted that the intermediate joint 3 includes an external insulating housing and connecting terminals disposed at two ends of the insulating housing, the external thread is disposed on the outer periphery of the insulating housing, the length direction of the external thread is disposed along the axial direction of the insulating housing, and the length of the external thread can be set according to actual conditions.

Screw cap 4 is the tubular structure, and axial one end is the opening, and the other end is equipped with the clamp ring, and the external diameter of clamp ring is unanimous with the internal diameter of screw cap 4 and is connected, and the setting of the internal diameter size of clamp ring can guarantee that screw cap 4 when axial displacement, and the clamp ring only has the axial to seal ring 8 and compresses tightly the effect, and with other positions frictionless, can guarantee 4 axial displacement's of screw cap smooth and easy nature.

The shell of end fitting 2 is echelonment, and first order inserts in the tip of intermediate head 3, and the second order is also sealing ring 8, and back in the tip of first order insertion intermediate head 3, sealing ring 8 can laminate on the terminal surface of the tip of intermediate head 3, can promote the compactness, and watertight fittings can set up in order to guarantee waterproof performance between the terminal surface of the tip of sealing ring 8 and intermediate head 3.

When the end part sealing device is used, the end part connector 2 and the middle connector 3 are firstly inserted, the thread cover 4 is screwed on the external thread of the middle connector 3 after the sealing ring 8 is attached to the end face of the end part of the middle connector 3, and the sealing ring 8 is pressed by the pressing ring until the thread cover 4 is screwed down. In the embodiment, by screwing the threaded cap 4 and the external thread of the intermediate joint 3, the connection tightness between the intermediate joint 3 and the end joint 2 can be better, and the waterproof performance between the intermediate joint 3 and the end joint 2 is further improved.

In addition to the above-described embodiments, it is further preferable that a waterproof rubber ring is provided on an annular surface of the end surface of the intermediate joint 3 to which the seal ring 8 is connected. It should be noted that the inner diameter of the waterproof rubber ring can be set slightly smaller than the outer diameter of the first step of the end connector 2, and the waterproof rubber ring has certain elasticity, so that the waterproof rubber ring is installed on the first step and is in interference fit, and the waterproof rubber ring can be prevented from falling off. The external diameter of waterproof rubber circle can set up according to actual conditions, but need notice that, in order to promote the waterproof performance of waterproof rubber circle, press from both sides tight waterproof rubber circle back between the terminal surface of sealing ring 8 and intermediate head 3, waterproof rubber circle is full of the gap between the terminal surface of sealing ring 8 and intermediate head 3. The waterproof device of the embodiment is made of rubber, so that the cost is low, and the waterproof device is made into a circular ring shape, so that the manufacturing difficulty can be reduced.

On the basis of the above embodiment, it is further preferable that each end fitting 2 is connected with a connector wire 1 for connection with an external line. It should be noted that, one end of the conventional connector is a structure that is in butt joint with another connector, the other end of the conventional connector is a structure that is connected with an external circuit, the structure that is connected with the external circuit is usually a blind hole, the external circuit is inserted into the blind hole, then a radial bolt is arranged on the hole wall of the blind hole, the radial bolt and the butt joint structure can transmit an electric signal, the radial bolt compresses the external circuit on the hole wall of the blind hole, and meanwhile, the radial bolt is connected with the external circuit. But the use in-process needs to carry out the screw crimping operation to the wire rod, can pull hard and lead to the wire rod to connect the potential safety hazard of becoming flexible. The structure of end connection 2 in this embodiment has connector electric wire 1 at end connection 2's internal connection in advance, and connector electric wire 1 is connected with the external line through the welding, later carries out insulation protection with the splice again, can avoid the wire to drag, further promotes the security performance.

On the basis of the above embodiment, as a further preferred, sleeves 6 are respectively disposed at two ends of the middle joint 3, a plurality of pins 7 axially disposed along the sleeves 6 are disposed in the sleeves 6, and a plurality of insertion holes 11 for inserting the pins 7 are disposed in the axial direction of each end joint 2.

The pin 7 at one end of the intermediate connector 3 is connected with the pin 7 at the other end of the intermediate connector 3 through a wire, one pin 7 at one end of the intermediate connector 3 is correspondingly connected with one pin 7 at the other end of the intermediate connector, the wire is embedded in the shell of the intermediate connector 3, and the number of the pins 7 can be set according to actual conditions.

The sleeve 6 is a cylindrical sleeve 6, the axial direction of the sleeve 6 is collinear with the axial direction of the contact pins 7, the end connector 2 is provided with jacks 11 corresponding to the number of the contact pins 7 at one end of the intermediate connector 3, for example, when the number of the contact pins 7 at one end of the intermediate connector 3 is 4, the number of the jacks 11 of the end connector 2 is 4, and the positions where the contact pins 7 are distributed correspond to the positions where the jacks 11 are distributed one by one, so that after the end connector 2 is inserted into the sleeve 6 of the intermediate connector 3, each contact pin 7 can be inserted into the corresponding jack 11.

The structure of the middle plug and the end joint 2 cartridge that this embodiment set up can guarantee the compactness that middle joint 3 and end joint 2 are connected, makes the connection of metal connecting end in contact pin 7 and the jack 11 more stable, makes the more stable of signal of telecommunication propagation.

On the basis of the above embodiment, in order to prevent the end joints 2 and the intermediate joint 3 from rotating relatively after being connected, the sleeves 6 at the two ends of the intermediate joint 3 are respectively provided with a positioner, and each end joint 2 is provided with a positioning part which is installed in a matching way with the positioner, so that the two end joints 2 can be prevented from rotating relative to the intermediate joint 3 after the two ends of the intermediate joint 3 are respectively connected to the two end joints 2. If no locator is arranged in the sleeve 6 and no locating part is arranged on the end connector 2, after the end connector 2 is inserted into the sleeve 6, relative rotation may occur under the action of external force, so that the end connector 2 drives the contact pin 7 to rotate to damage the contact pin 7. This embodiment is in end fitting 2 insert sleeve 6 back, and the locator cooperatees with location portion and blocks, can prevent that end fitting 2 from inserting sleeve 6 back in, end fitting 2 rotates for 3 relative rotations of intermediate head, has avoided damaging contact pin 7, has increased the life of intermediate head 3.

On the basis of the above embodiment, as a further preferred, the locator is the bar-shaped protrusion 5 that is arranged along the axial direction of the sleeve 6 and is arranged on the inner wall of the sleeve 6, the positioning part is the bar-shaped groove 10 that is arranged along the axial direction of the end fitting 2 and is arranged on the outer wall of the end fitting 2, and the bar-shaped protrusion 5 is installed in cooperation with the bar-shaped groove 10.

It should be noted that, the protruding direction of the bar-shaped protrusion 5 is set along the inner wall of the sleeve 6 in the radial direction, the length direction of the bar-shaped protrusion 5 is set along the axial direction of the sleeve 6, and the position of each protrusion of the bar-shaped protrusion 5 is the same. The sunken direction of bar groove 10 is for following the radial of end fitting 2, and the length direction of bar groove 10 is for following the axial of end fitting 2.

When the installation, with protruding 5 and the alignment of bar groove 10 of bar, of course, contact pin 7 and jack 11 are also aimed at one by one this moment, insert sleeve 6 with end connection 2 again, can make bar groove 10 spacing each other with protruding 5 of bar, prevent end connection 2 and sleeve 6 relative rotation. The embodiment has the advantages of simple structure, convenience in processing and dismounting and lower cost.

On the basis of the above embodiment, as a further preference, the outer walls of the two end fittings 2 are provided with anti-slip threads 9 for facilitating the pulling and inserting. So set up can increase when pulling out and insert end joint 2 and the frictional force between end joint 2 to increase the simple operation nature.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides a waterproof butt joint has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A waterproof docking head, comprising: intermediate head (3) of both ends symmetry, the both ends of intermediate head (3) are connected respectively about end connection (2) of intermediate head (3) symmetry, one the signal of telecommunication accessible of end connection (2) intermediate head (3) transmit to another end connection (2), end connection (2) with be equipped with watertight fittings between intermediate head (3).

2. The waterproof butt joint according to claim 1, wherein external threads are arranged on the peripheries of two ends of the middle joint (3), two end joints (2) are sleeved with threaded covers (4) which are respectively matched and connected with the two external threads, the rear ends of the two threaded covers (4) are provided with compression rings, sealing rings (8) are arranged on the two end joints (2), and the sealing rings (8) are compressed on two end faces of the middle joint (3) after the threaded covers (4) are screwed down.

3. A watertight butt joint according to claim 2, characterized in that the sealing ring (8) is provided with a watertight rubber ring on the ring surface towards the end surface of the intermediate joint (3) to which it is connected.

4. A watertight docking head as claimed in claim 1, characterized in that a connector wire (1) for connection with external lines is connected to each end fitting (2).

5. A waterproof butt joint according to claim 1, wherein a sleeve (6) is provided at each end of the intermediate joint (3), a plurality of pins (7) are provided in the sleeve (6) along the axial direction of the sleeve (6), and a plurality of insertion holes (11) for the pins (7) to be inserted are provided in the axial direction of each end joint (2).

6. A watertight butt joint as claimed in claim 5, characterized in that locators are provided in the sleeves (6) at both ends of the intermediate joint (3), and a locating portion fitted with the locators is provided on each of the end joints (2) to prevent the two end joints (2) from rotating relative to the intermediate joint (3) after both ends of the intermediate joint (3) are connected to the two end joints (2), respectively.

7. The waterproof butt joint according to claim 6, wherein the locator is a strip-shaped protrusion (5) which is arranged along the axial direction of the sleeve (6) and is arranged on the inner wall of the sleeve (6), the positioning portion is a strip-shaped groove (10) which is arranged along the axial direction of the end fitting (2) and is arranged on the outer wall of the end fitting (2), and the strip-shaped protrusion (5) is installed in a matching way with the strip-shaped groove (10).

8. A watertight butt joint as claimed in any one of the claims 1-7, characterized in that the outer walls of both end fittings (2) are provided with anti-slip threads (9) for easy plugging and unplugging.