CN209880997U - Waterproof butt joint - Google Patents

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

A waterproof butt joint

technical field

The utility model relates to the technical field of line butt joints, in particular to a waterproof butt joint.

Background technique

Waterproof joints, as the name implies, can be applied to environments with water to provide safe and reliable connector joints. Applicable scenarios such as: LED street lights, lighthouses, cruise ships, industrial equipment, sprinklers, etc., all require waterproof connectors.

The advantage of using waterproof connectors is that after pre-processing the wires, the cable itself has the flexibility of being detachable and assembling, and the length and number of strands of the cable can be customized at will. The use of waterproof connectors can make the wires waterproof and can cope with outdoor rainy weather and other conditions.

At present, a kind of waterproof connector popular in the market has the characteristics of butt joint between male and female sockets. In the actual application process, the distinction between male and female heads needs to be considered. For example, one side is a male head, and the other half must be a female head. When replacing, you also need to use a female head to replace it. This detail will bring some troubles to the actual production process. If the two ends are male (or female), rework is required. At the same time, the number of male and female heads is one-to-one correspondence, and both are indispensable.

To sum up, how to provide a waterproof connector that does not need to distinguish between male and female connectors and has no potential safety hazards is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the purpose of this utility model is to provide a waterproof butt joint that does not need to distinguish between male and female, and has no potential safety hazards.

In order to achieve the above object, the utility model provides the following technical solutions:

A waterproof butt joint, comprising: an intermediate joint with two symmetrical ends, the two ends of the intermediate joint are respectively connected with end joints symmetrical to the intermediate joint, and an electrical signal of one of the end joints can pass through the intermediate The joint is transferred to another said end joint, and a waterproof device is provided between said end joint and said intermediate joint.

Preferably, the outer circumferences of both ends of the intermediate joint are provided with external threads, and the two end joints are fitted with threaded caps that are respectively fitted and connected with the two sections of the external threads, and the rear ends of the two threaded caps are Each end is provided with a compression ring, and the two end joints are provided with a sealing ring, and the sealing ring is compressed on the two ends of the intermediate joint after the screw cap is tightened.

Preferably, a waterproof rubber ring is provided on the ring surface of the sealing ring facing the end surface of the intermediate joint to which it is connected.

Preferably, each of the end fittings is connected with a connector wire for connecting with an external circuit.

Preferably, both ends of the intermediate joint are provided with a sleeve, and a plurality of insertion pins are arranged in the sleeve along the axial direction of the sleeve, and each of the end joints is provided with a The number of sockets into which the pins are inserted.

Preferably, positioners are provided in the sleeves at both ends of the intermediate joint, and each end joint is provided with a positioning part that is fitted with the positioner to prevent the intermediate joint from After the two ends are respectively connected to the two end joints, the two end joints can rotate relative to the middle joint.

Preferably, the locator is a bar-shaped protrusion provided along the axial direction of the sleeve and on the inner wall of the sleeve, and the positioning part is provided along the axial direction of the end joint, And the strip-shaped groove is arranged on the outer wall of the end joint, and the strip-shaped protrusion is fitted with the strip-shaped groove.

Preferably, the outer walls of the two end connectors are provided with anti-skid lines for easy extraction and insertion.

A waterproof butt joint provided by the utility model includes: a middle joint with two symmetrical ends, the two ends of the middle joint are respectively connected with end joints which are symmetrical about the middle joint, and the electrical signal of one end joint can be transmitted to the The other end joint is provided with a waterproof device between the end joint and the intermediate joint.

The two ends of the intermediate joint are symmetrical structures, and the end joints are respectively connected to the two ends of the intermediate joint. Therefore, the two end joints are also set to a symmetrical structure. During processing, the end joints only need to be processed of the same type. , there is no need to process the male and female connectors separately, and at the same time, only the same type of end connectors are required for maintenance and replacement, and the replacement can be performed without distinguishing between male and female connectors. Arranging a waterproof device between the end joint and the intermediate joint can ensure that water will not seep between the intermediate joint and the end joint, and can ensure the safety of the waterproof butt joint.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is the connection schematic diagram of the waterproof butt joint provided by the utility model;

Fig. 2 is the front view of the intermediate joint provided by the utility model;

Fig. 3 is a side view of the intermediate joint provided by the utility model;

Fig. 4 is the schematic diagram of the end joint provided by the utility model;

Fig. 5 is a side view of the end joint provided by the utility model.

In Figure 1-5:

1-connector wire, 2-end joint, 3-intermediate joint, 4-thread cap, 5-bar protrusion, 6-sleeve, 7-pin, 8-sealing ring, 9-anti-slip, 10 -Strip slot, 11-jack.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The core of the utility model is to provide a waterproof butt joint that does not need to distinguish male and female connectors and has no potential safety hazards.

Please refer to Figures 1 to 5, Figure 1 is a schematic diagram of the connection of the waterproof butt joint provided by the utility model; Figure 2 is a front view of the intermediate joint provided by the utility model; Figure 3 is a schematic diagram of the intermediate joint provided by the utility model Side view; Figure 4 is a schematic diagram of the end joint provided by the utility model; Figure 5 is a side view of the end joint provided by the utility model.

A waterproof butt joint, comprising: an intermediate joint 3 with two symmetrical ends, the two ends of the intermediate joint 3 are respectively connected with end joints 2 symmetrical to the intermediate joint 3, and the electrical signal of one end joint 2 can be transmitted through the intermediate joint 3 To the other end joint 2, a waterproof device is provided between the end joint 2 and the intermediate joint 3.

It should be noted that the intermediate joint 3 can be set as a cylindrical shell or a rectangular parallelepiped shell. For waterproof performance, it is necessary to insert the end joint 2 into the interior of both ends of the intermediate joint 3, or insert the two ends of the intermediate joint 3 into the interior of the end joint 2, that is, set blind holes at both ends of the intermediate joint 3, and insert the end The joint 2 is inserted as a whole or a blind hole is provided in the end joint 2, and the two ends of the middle joint 3 are respectively inserted as a whole. Therefore, after the intermediate joint 3 is set as a cylindrical shell, the end joint 2 also needs to be set as a cylindrical shell mated with the intermediate joint 3 to increase tightness. The shells of the intermediate joint 3 and the end joint 2 can be made of insulating materials such as rubber or plastic.

Both ends of the intermediate joint 3 are respectively provided with metal connecting rods or metal connecting rings, and the metal connecting rods or metal connecting rings arranged at both ends of the intermediate joint 3 are connected by wires, and are arranged in the housing of the intermediate joint 3, Safety can be increased while ensuring the transmission of electrical signals.

The waterproof device provided between the end joint 2 and the intermediate joint 3 can generally be arranged at the contact point between the end joint 2 and the shell of the intermediate joint 3. The waterproof device can be made of rubber or silica gel after compression, which has good tightness and Made with lower cost materials.

The two ends of the intermediate joint 3 are symmetrical structures, and the end joints 2 are respectively connected to the two ends of the intermediate joint 3. Therefore, the two end joints 2 are also arranged as symmetrical structures. During processing, the end joints 2 only need to The same type of processing is sufficient, and there is no need to process the male and female connectors separately. At the same time, only the same type of end connector 2 is required for maintenance and replacement, and the replacement can be performed without distinguishing between the male and female connectors. Arranging a waterproof device between the end joint 2 and the intermediate joint 3 can ensure that water will not seep between the intermediate joint 3 and the end joint 2, and can ensure the safety of the waterproof butt joint.

On the basis of the above-mentioned embodiments, as a further preference, external threads are provided on both ends of the intermediate joint 3, and the two end joints 2 are sleeved with screw caps 4 that are respectively connected with two sections of external threads. The rear ends of each threaded cap 4 are provided with compression rings, and the two end joints 2 are provided with sealing rings 8. After the threaded caps 4 are tightened, the sealing rings 8 are pressed on the two ends of the intermediate joint 3.

It should be noted that the intermediate joint 3 includes an external insulating shell and connecting terminals arranged at both ends of the insulating shell, the external thread is arranged on the outer circumference of the insulating shell, and the length direction of the external thread is arranged along the axial direction of the insulating shell , the length of the external thread can be set according to the actual situation.

The threaded cap 4 is a cylindrical structure, one axial end is an opening, and the other end is provided with a compression ring, the outer diameter of the compression ring is consistent with the inner diameter of the threaded cap 4 and connected, and the setting of the inner diameter of the compression ring can ensure that the threaded cap 4 When moving in the axial direction, the compression ring only has an axial compression effect on the sealing ring 8 and has no friction with other positions, which can ensure the smoothness of the axial movement of the threaded cap 4 .

The shell of the end joint 2 is stepped. The first step is inserted into the end of the intermediate joint 3, and the second step is the sealing ring 8. After the first step is inserted into the end of the intermediate joint 3, the sealing ring 8 will fit on the The end face of the end of the intermediate joint 3 can improve tightness, and the waterproof device can be arranged between the sealing ring 8 and the end face of the end of the intermediate joint 3 to ensure waterproof performance.

When in use, first insert the end joint 2 and the intermediate joint 3, and after the sealing ring 8 fits on the end face of the end of the intermediate joint 3, screw the threaded cover 4 on the external thread of the intermediate joint 3 until it is pressed The tightening ring compresses the sealing ring 8 until the threaded cover 4 is tightened. In this embodiment, through the tightening fit between the screw cap 4 and the external thread of the intermediate joint 3, the tightness of the connection between the intermediate joint 3 and the end joint 2 can be improved, and the intermediate joint 3 and the end joint 2 can be further improved. Between waterproof performance.

On the basis of the above embodiments, as a further preference, a waterproof rubber ring is provided on the ring surface of the sealing ring 8 facing the end surface of the intermediate joint 3 to which it 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 stage of the above-mentioned end joint 2. Since the waterproof rubber ring has certain elasticity, installing the waterproof rubber ring on the first stage is an interference Cooperate to prevent the waterproof rubber ring from falling off. The outer diameter of the waterproof rubber ring can be set according to the actual situation, but it should be noted that in order to improve the waterproof performance of the waterproof rubber ring, after the waterproof rubber ring is clamped between the sealing ring 8 and the end face of the intermediate joint 3, the waterproof rubber ring Fill the gap between the sealing ring 8 and the end face of the intermediate joint 3 . The waterproof device of this embodiment is made of rubber with low cost, and the waterproof device is made into a circular ring, which can reduce the manufacturing difficulty.

On the basis of the above embodiments, as a further preference, each end connector 2 is connected with a connector wire 1 for connecting with an external circuit. It should be noted that one end of a traditional connector is a structure that is docked with another connector, and the other end is a structure that is connected to an external circuit. The structure that is connected to an external circuit is usually provided with a blind hole, and the external circuit is inserted into the blind hole, and then the blind hole Radial bolts are arranged on the hole wall, and the radial bolts and the docking structure can transmit electrical signals. The radial bolts press the external circuit on the hole wall of the blind hole, and at the same time, the radial bolts are connected to the external circuit. However, in the process of use, it is necessary to perform screw crimping on the wires, which may cause potential safety hazards such as loosening the wire connection due to forceful pulling. The structure of the end joint 2 in this embodiment is pre-connected with the connector wire 1 inside the end joint 2, and the connector wire 1 is connected to the external circuit by welding, and then the welding place is insulated and protected, so that the wire can be avoided. Pull to further improve safety performance.

On the basis of the above-mentioned embodiment, as a further preference, both ends of the intermediate joint 3 are provided with a sleeve 6, and inside the sleeve 6 are provided a number of pins 7 arranged axially along the sleeve 6, and each end joint The axial direction of 2 is provided with several jacks 11 for inserting pin 7.

It should be noted that the pin 7 at one end of the intermediate joint 3 is connected to the pin 7 at the other end by a wire, and one pin 7 at one end of the intermediate joint 3 is correspondingly connected to a pin 7 at the other end, and the wire is buried Inserted into the housing of the intermediate joint 3, the number of 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 in line with the axial direction of the pins 7, and the end joint 2 is provided with sockets 11 corresponding to the number of the pins 7 at one end of the intermediate joint 3, For example, when the number of pins 7 at one end of the intermediate joint 3 is 4, the number of jacks 11 of the end joint 2 is 4, and the positions of the pins 7 are in one-to-one correspondence with the positions of the jacks 11, so that After the end connector 2 is inserted into the sleeve 6 of the intermediate connector 3 , each pin 7 can be inserted into its corresponding socket 11 .

The structure of the intermediate plug and the end connector 2 provided in this embodiment can ensure the tightness of the connection between the intermediate connector 3 and the end connector 2, so that the connection between the pin 7 and the metal connection end in the jack 11 is more stable, and the electric The signal propagation is more stable.

On the basis of the above embodiments, in order to prevent the relative rotation of the end joint 2 and the intermediate joint 3 after being connected, positioners are provided in the sleeves 6 at both ends of the intermediate joint 3, and each end joint 2 is equipped with a The positioner cooperates with the positioning part installed to prevent the two end joints 2 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 there is no locator in the sleeve 6 and no positioning part is set on the end joint 2, when the end joint 2 is inserted into the sleeve 6, relative rotation may occur under the action of an external force, causing the end joint 2 to drive the pin 7 turn to damage pin 7. In this embodiment, after the end joint 2 is inserted into the sleeve 6, the locator and the positioning part are locked together, which can prevent the end joint 2 from rotating relative to the intermediate joint 3 after the end joint 2 is inserted into the sleeve 6, Damage to the contact pin 7 is avoided, and the service life of the intermediate joint 3 is increased.

On the basis of the above embodiment, as a further preference, the locator is a bar-shaped protrusion 5 arranged in the axial direction of the sleeve 6 and on the inner wall of the sleeve 6, and the positioning part is along the axis of the end joint 2. The strip-shaped protrusion 5 and the strip-shaped groove 10 are installed toward the strip-shaped groove 10 provided on the outer wall of the end joint 2 .

It should be noted that the protruding direction of the strip-shaped protrusion 5 is arranged radially along the inner wall of the sleeve 6, the length direction of the strip-shaped protrusion 5 is arranged along the axial direction of the sleeve 6, and each of the strip-shaped protrusions 5 The raised positions are consistent. The concave direction of the strip-shaped groove 10 is along the radial direction of the end fitting 2 , and the length direction of the strip-shaped groove 10 is along the axial direction of the end fitting 2 .

When installing, align the bar-shaped protrusion 5 with the bar-shaped groove 10. Of course, at this time, the pins 7 and the sockets 11 are also aligned one by one, and then insert the end joint 2 into the sleeve 6, and the The bar-shaped groove 10 and the bar-shaped protrusion 5 limit each other to prevent the relative rotation of the end joint 2 and the sleeve 6 . This embodiment has a simple structure, is easy to process and disassemble, and has low cost.

On the basis of the above embodiments, as a further preference, the outer walls of the two end connectors 2 are provided with anti-slip lines 9 for easy extraction and insertion. Such setting can increase the frictional force between the end joint 2 and the end joint 2 when the end joint 2 is plugged in, thereby increasing the convenience of operation.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The waterproof butt joint provided by the utility model has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (8)

1. A waterproof butt joint, characterized in that it comprises: a symmetrical intermediate joint (3) at both ends, and the two ends of the intermediate joint (3) are respectively connected with symmetrical end joints about the intermediate joint (3) (2), the electrical signal of one said end joint (2) can be transmitted to the other said end joint (2) through said intermediate joint (3), said end joint (2) and said intermediate A waterproof device is provided between the joints (3). 2. The waterproof butt joint according to claim 1, characterized in that external threads are provided on both ends of the intermediate joint (3), and the two end joints (2) are sleeved with Two sections of threaded caps (4) that are mated and connected by external threads, the rear ends of the two threaded caps (4) are provided with compression rings, and the two end joints (2) are provided with sealing rings ( 8), after the threaded cap (4) is tightened, the sealing ring (8) is pressed against the two ends of the intermediate joint (3). 3. The waterproof butt joint according to claim 2, characterized in that a waterproof rubber ring is provided on the annular surface of the sealing ring (8) facing the end face of the intermediate joint (3) to which it is connected. 4. The waterproof butt joint according to claim 1, characterized in that, each of the end joints (2) is connected with a connector wire (1) for connecting with an external circuit. 5. The waterproof butt joint according to claim 1, characterized in that, both ends of the intermediate joint (3) are provided with a sleeve (6), and the sleeve (6) is provided with a A plurality of insertion pins (7) are arranged axially in the cylinder (6), and a plurality of insertion holes (11) for insertion of the insertion pins (7) are provided in the axial direction of each end joint (2). 6. The waterproof butt joint according to claim 5, characterized in that positioners are provided in the sleeves (6) at both ends of the intermediate joint (3), and each of the end joints (2 ) are provided with positioning parts that are installed in conjunction with the locator to prevent the two ends of the intermediate joint (3) from being connected to the two end joints (2) respectively, and the two end joints (2) It can rotate relative to the intermediate joint (3). 7. The waterproof butt joint according to claim 6, characterized in that, the locator is a strip arranged along the axial direction of the sleeve (6) and on the inner wall of the sleeve (6) shaped protrusion (5), the positioning part is a bar-shaped groove (10) arranged axially along the end joint (2) and on the outer wall of the end joint (2), the The strip-shaped protrusion (5) is fitted with the strip-shaped groove (10). 8. The waterproof butt joint according to any one of claims 1 to 7, characterized in that, the outer walls of the two end joints (2) are provided with anti-slip lines (9) for easy extraction and insertion.