CN220569959U - Waterproof wire connector with high sealing performance - Google Patents

Abstract

A waterproof wire connector with high sealing performance comprises a copper core, a wire pressing bolt and an insulating shell; the copper core is provided with a wiring channel for connecting wires in a penetrating way, the wiring channel comprises two openings positioned at two ends of the copper core, and the copper core is also provided with a plurality of threaded holes; the line pressing bolt is in threaded fit with the threaded hole on the copper core; a containing cavity for placing the copper core is formed in the insulating shell, and connecting windows are formed at two ends of the insulating shell; the sealing plug is penetrated and connected in the connecting window, a through wire hole through which the power supply wire passes is formed in the sealing plug, the periphery of the sealing plug is in sealing fit with the inner wall of the connecting window, and the inner wall of the through wire hole can be in sealing fit with the periphery of the power wire penetrating through the through wire hole; according to the utility model, after the whole wire connector is installed, the accommodating cavity inside the insulating shell is isolated from the outside, so that the wire connector can be normally used in a wet and watery environment.

Description

Waterproof wire connector with high sealing performance

Technical Field

The utility model relates to the field of wire connectors, in particular to a waterproof wire connector with high sealing performance.

Background

The wire connection is also called a terminal block; after the electric wires are laid, in order to form a continuous circuit, all the sections of wires are connected into a whole, and in the traditional electromechanical installation engineering, all the electric wire sections are connected in a butt joint and winding mode through the electric wire cores, and then are wound and insulated by using a black adhesive tape, but the black adhesive tape has the defects of no heat dissipation, poor durability, easy aging, easy falling, environmental pollution and the like, so that various electric wire joints are used for connecting the electric wire sections in recent years.

The current market just has a wire terminal of constituteing by copper spare and insulating shell, and the electric wire core of electric wire section can insert through the both ends of copper spare and fix in the copper spare, and the insulating shell then covers and establishes outside the copper spare to prevent that the user from touching the copper spare, thereby has both realized the quick simple and convenient connection between the electric wire, can ensure insulating effect again, and the setting of insulating shell is also more reliable and stable than the winding mode of black tape.

The Chinese patent with the patent number ZL 202021216633.3 discloses that: the utility model provides a binding post, relates to wire connecting device, and it includes insulating casing, the jack groove has all been seted up at insulating casing length direction's both ends, two the one end of jack groove depth direction is provided with the conductor connection piece that is used for realizing two electric wires electricity to connect, and two all be provided with in the jack groove and be used for compressing tightly the compression assembly on the conductor connection piece with electric wire copper core. According to the utility model, the copper core ends of the two wires are respectively pressed on the conductor connecting sheet by utilizing the two pressing assemblies, so that the purpose of rapid wiring can be realized, and an external tool is not needed, so that the method is simple, convenient and rapid.

However, the same problem exists in the existing wire connectors of the type described in the above-mentioned patents, which is caused by the unavoidable clearance between the positions of the insulating housing for the wires, and the fact that the interior of the insulating housing is in communication with the outside world, which also results in the use field Jing Shouxian of such wire connectors being able to be used only in relatively dry conditions, and once the wet and watery environment is encountered, the water enters the insulating housing and affects the wire core therein, which may cause a short circuit in the circuit.

Disclosure of Invention

In order to overcome the defect that the wire connector in the prior art cannot be used in a humid water environment due to the fact that the wire connector does not have a waterproof function, the utility model provides the waterproof wire connector with high sealing performance.

The technical scheme for solving the technical problems is as follows: a waterproof wire-terminal with high sealing properties, comprising:

the copper core is provided with a wiring channel for connecting wires in a penetrating manner, the wiring channel comprises two openings at two ends of the copper core, and the copper core is also provided with a plurality of threaded holes;

the thread pressing bolt is in threaded fit with the threaded hole in the copper core;

the insulating shell is internally provided with a containing cavity for placing the copper core, two ends of the insulating shell are respectively provided with a connecting window, and the containing cavity is communicated with the outside of the insulating shell through the connecting windows;

the method also comprises the following steps:

the sealing plug is connected in the connecting window in a penetrating way, a through hole through which the power supply line passes is formed in the sealing plug in a penetrating way, the periphery of the sealing plug is in sealing fit with the inner wall of the connecting window, and the inner wall of the through hole can form sealing fit with the periphery of the power line in the through hole in a penetrating way, so that the accommodating cavity is isolated from the outside of the insulating shell.

The sealing fit mode between the sealing plug and the connecting window and between the sealing plug and the electric wire is further that the first sealing ring is embedded on the periphery of the sealing plug, and the second sealing ring is embedded on the inner wall of the through wire hole of the sealing plug; the first sealing ring is in interference fit between the peripheral side of the sealing ring and the inner wall of the connecting window, and the second sealing ring is in interference fit between the inner wall of the through hole and the peripheral side of the electric wire.

The sealing action of the sealing plug is further that the inner side of the sealing plug is also provided with a sealing column towards the copper core in a protruding mode, the top of the sealing column extends into the wiring channel through the opening, and the periphery of the top of the sealing column is in sealing fit with the opening of the connecting channel.

The sealing fit mode between the sealing column and the opening of the connecting channel is further, an abutting slope which can form abutting fit with the opening of the connecting channel is formed at the top of the sealing column, a third sealing ring is further embedded on the abutting slope, and the third sealing ring is in interference fit between the abutting slope and the opening of the connecting channel.

The abutting slope is further arranged in a way that the top diameter of the sealing column gradually reduces towards the opening of the connecting channel, so that the abutting slope is formed.

The sealing plug has a further limiting effect on the copper core, and two ends of the copper core respectively form abutting fit with sealing columns positioned at two sides of the copper core, so that the copper core cannot move back and forth in the accommodating cavity under the blocking of the abutting columns at two sides

The sealing plug is further relative to the positioning structure of the insulating shell, limiting grooves are further formed in the upper side and the lower side of the connecting window on the insulating shell, the limiting grooves are communicated with the inner wall of the connecting window, block limiting plates are symmetrically and convexly arranged on the periphery of the sealing plug, and when the sealing plug is connected to the connecting window, the limiting plates are embedded in the limiting grooves.

The cooperation mode between limiting plate and the spacing groove is still further, the joint groove has still been seted up to the spacing inslot, towards spacing groove protruding being equipped with on the limiting plate can forming joint complex joint claw with the joint groove.

The disassembly structure of the sealing plug is further characterized in that a stirring rib is further arranged at the upper end of the limiting plate in a protruding mode, and a stirring gap is formed between the stirring rib and the groove wall of the limiting groove.

The specific structure of the insulating shell is further that the insulating shell comprises an upper shell and a lower shell; the accommodating cavity is formed by splicing an upper accommodating groove formed in the upper shell and a lower accommodating groove formed in the lower shell; the connecting window is formed by splicing an upper connecting groove formed on the upper shell and a lower connecting groove formed on the lower shell.

The fixing mode between the upper shell and the lower shell is further, the limiting grooves are respectively formed in one sides of the upper connecting groove and the lower connecting groove, when the sealing plug is connected to the connecting window, the limiting plate is in scarf joint with the limiting grooves formed in the upper shell and the lower shell, and the clamping claws on the limiting plate are in clamping joint with the limiting grooves in the limiting grooves, so that the lower shell and the upper shell can be prevented from being separated from each other.

The connecting structure between the upper shell and the lower shell is further characterized in that abutting plates are arranged on two sides of the lower shell, which are located on the lower accommodating groove, of the lower shell in a protruding mode, abutting steps are formed in groove walls on two sides of the upper accommodating groove of the upper shell, and the abutting plates extend into the upper accommodating groove and form abutting fit with the abutting steps.

The limiting action of the abutting plate on the copper core is further that the abutting plate is in abutting fit on two sides of the copper core, and therefore the copper core is prevented from moving left and right in the accommodating cavity.

The limiting action of the abutting step on the copper core is further, the abutting step is in abutting fit with the abutting plate, the abutting step is in abutting fit with the upper side of the copper core, the lower side of the copper core is in abutting fit with the bottom of the lower accommodating groove, and therefore the copper core is prevented from moving up and down in the accommodating cavity.

The positioning structure between the upper shell and the lower shell is further characterized in that a plurality of positioning grooves are further formed in the outer side of the abutting plate, positioning ribs are further arranged on the groove walls of the two sides of the upper accommodating groove in a protruding mode below the abutting step, and the positioning ribs are in clamping fit with the positioning grooves.

The wiring assembly mode of the utility model comprises the following steps:

firstly, two wires to be connected are respectively penetrated into through holes of two sealing plugs, after the wire heads penetrate through the sealing plugs, the sealing plugs are pushed towards the rear of the wires to keep a certain distance from the wire heads, then wire cores of the two wire heads extend into connecting channels on the copper cores through openings at two ends of the copper cores, then wire pressing bolts on the copper cores are screwed to fix the wire cores in the copper cores, then the copper cores and the heads of the two wires are placed into a lower accommodating groove of a lower shell, the two wires penetrate through the lower connecting groove to extend out of the lower shell, then the upper shell can be covered on the lower shell, the copper cores are fixedly clamped between the upper shell and the lower shell, then the sealing plugs sleeved on the two wires are pushed towards the insulating shell from two sides, and finally the sealing plugs are penetrated into connecting windows, and meanwhile, a limiting plate is embedded in the limiting groove to enable a clamping claw to be matched with the clamping groove in a clamping way, and even if the upper shell and the lower shell are pulled, the upper shell and the lower shell cannot be separated;

when the insulating shell needs to be disassembled to take out the copper core, the nail or the flat screwdriver can be stretched into the poking gap, the poking rib is propped against the inner side and pushed outwards, the clamping is separated from the clamping groove, and therefore the sealing plug is in contact connection with the connecting window, and the upper shell and the lower shell can be pulled to be separated.

The utility model has the beneficial effects that:

1. the sealing plug is arranged and is respectively in sealing fit with the insulating shell and the electric wire penetrating through the insulating shell, so that the accommodating cavity inside the insulating shell is isolated from the outside after the whole electric wire connector is installed, and the electric wire connector can be normally used in a wet and watery environment;

2. sealing rings are respectively arranged on the inner ring and the outer ring of the sealing plug, so that the sealing fit between the sealing plug and the insulating shell and between the sealing plug and the electric wire is tighter, and the sealing performance of the electric wire connector is further improved;

3. the sealing plug is also convexly provided with a sealing post towards the copper core, the sealing fit with the opening of the connecting channel on the copper core can be realized by virtue of the sealing post, and the sealing posts on the two sides are propped against the copper core and can be prevented from translating back and forth;

4. the insulation shell and the sealing plug are matched by means of the scarf joint of the limiting groove and the limiting plate, and the clamping grooves are matched with the clamping claws to realize relative connection, the clamping claws on two sides of the sealing plug are respectively clamped in the clamping grooves on the upper shell and the lower shell, and the upper shell and the lower shell can be ensured to be incapable of being separated after the sealing plug is installed;

5. by means of the abutting plate arranged on the lower shell and the abutting step until the upper shell, limiting on the left and right directions and the upper and lower directions of the copper core can be achieved, movement of the copper core in the accommodating cavity is prevented, and stability of the copper core in the use process is further ensured.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded view of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is an enlarged schematic view at a in fig. 3.

Fig. 5 is a schematic view of the fit between the insulating housing and the sealing plug in the present utility model.

Fig. 6 is a schematic view of the structure of the sealing plug of the present utility model.

Fig. 7 is a schematic view of the structure of the lower housing in the present utility model.

Fig. 8 is a schematic view of the structure of the upper housing in the present utility model.

Reference numerals in the drawings: 1. a copper core; 2. a wiring channel; 3. an opening; 4. a threaded hole; 5. a wire pressing bolt; 6. an insulating case; 7. a receiving chamber; 8. a connection window; 9. a sealing plug; 10. a wire through hole; 11. a first seal ring; 12. a second seal ring; 13. a sealing column; 14. abutting against the slope; 15. a third seal ring; 16. a limit groove; 17. a limiting plate; 18. a clamping groove; 19. a clamping claw; 20. stirring the rib; 21. stirring the gap; 22. an upper housing; 23. a lower housing; 24. an upper receiving groove; 25. a lower accommodating groove; 26. an upper connecting groove; 27. a lower connecting groove; 28. an abutting plate; 29. abutting the step; 30. a positioning groove; 31. and (5) positioning ribs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding and are not used to define any directional or sequential limitation.

Examples

The waterproof wire connector with high tightness shown in combination with fig. 1 to 3 comprises a copper core 1, a wire pressing bolt 5 and an insulating shell 6; the copper core 1 is provided with a wiring channel 2 for connecting wires in a penetrating way, the wiring channel 2 comprises two openings 3 positioned at two ends of the copper core 1, and the copper core 1 is also provided with a plurality of threaded holes 4; the pressing line bolt 5 is in threaded fit with the threaded hole 4 on the copper core 1; a containing cavity 7 for placing the copper core 1 is formed in the insulating shell 6, connecting windows 8 are formed in two ends of the insulating shell 6, and the containing cavity 7 is communicated with the outside of the insulating shell 6 through the connecting windows 8; the sealing plug 9 is penetrated and connected in the connecting window 8, a through wire hole 10 through which a power supply wire passes is formed in the sealing, the periphery of the sealing plug 9 is in sealing fit with the inner wall of the connecting window 8, and the inner wall of the through wire hole 10 can form sealing fit with the periphery of the power wire penetrating into the sealing hole, so that the accommodating cavity 7 is isolated from the outside of the insulating shell 6.

As shown in fig. 4 and fig. 6, in this embodiment, a first sealing ring 11 is embedded on the circumferential side of the sealing plug 9, and a second sealing ring 12 is embedded on the inner wall of the through hole 10 of the sealing plug 9; the first sealing ring 11 is in interference fit between the peripheral side of the sealing ring and the inner wall of the connecting window 8, and the second sealing ring 12 is in interference fit between the inner wall of the through hole 10 and the peripheral side of the electric wire.

As shown in fig. 2 and 4, in this embodiment, the sealing effect of the sealing plug 9 is further improved, the inner side of the sealing plug 9 is further provided with a sealing post 13 protruding toward the copper core 1, the top of the sealing post 13 extends into the wiring channel 2 through the opening 3, and the peripheral side of the top of the sealing post 13 forms sealing fit with the opening 3 of the connection channel; an abutting slope 14 capable of forming abutting fit with the opening 3 of the connecting channel is formed at the top of the sealing column 13, a third sealing ring 15 is embedded on the abutting slope 14, and the third sealing ring 15 is in interference fit between the abutting slope 14 and the opening 3 of the connecting channel; the top diameter of the sealing post 13 tapers towards the connecting channel opening 3, thereby forming the abutment ramp 14.

As shown in fig. 3, in this embodiment, two ends of the copper core 1 respectively form an abutting fit with the sealing posts 13 on two sides thereof, so that the copper core 1 cannot move back and forth in the accommodating cavity 7 under the blocking of the abutting posts on two sides

Referring to fig. 1 and 5, in this embodiment, the insulating housing 6 is further provided with a limiting groove 16 on the upper and lower sides of the connecting window 8, the limiting groove 16 is in communication with the inner wall of the connecting window, the sealing plug 9 is symmetrically provided with a block limiting plate 17 protruding on the peripheral side, and when the sealing plug 9 is connected to the connecting window 8, the limiting plate 17 is embedded in the limiting groove 16.

As shown in fig. 4 to 6, in this embodiment, a clamping groove 18 is further formed in the limiting groove 16, and a clamping claw 19 capable of forming a clamping fit with the clamping groove 18 is protruding toward the limiting groove 16 on the limiting plate 17; the upper end of the limiting plate 17 is also provided with a poking rib 20 in a protruding mode, and a poking gap 21 is arranged between the poking rib 20 and the groove wall of the limiting groove 16.

As shown in fig. 2, 7 and 8, the insulating housing 6 in the present embodiment includes an upper housing 22 and a lower housing 23; the accommodating cavity 7 is formed by splicing an upper accommodating groove 24 formed on the upper shell 22 and a lower accommodating groove 25 formed on the lower shell 23; the connection window 8 is formed by splicing an upper connection groove 26 formed in the upper case 22 and a lower connection groove 27 formed in the lower case 23.

In this embodiment, the limiting groove 16 is respectively formed on one side of the upper connecting groove 26 and one side of the lower connecting groove 27, when the sealing plug 9 is connected to the connecting window 8, the limiting plate 17 forms an engagement fit with the limiting groove 16 formed on the upper housing 22 and the lower housing 23, and the lower housing 23 and the upper housing 22 can be prevented from being separated from each other by means of the engagement claw 19 on the limiting plate 17 and the limiting groove 16 in the limiting groove 16.

As shown in fig. 7 and 8, in this embodiment, abutment plates 28 are protruding on two sides of the lower housing 23 located on the lower accommodating groove 25, abutment steps 29 are formed on two side groove walls of the upper housing 22 on two sides of the upper accommodating groove 24, and the abutment plates 28 extend into the upper accommodating groove 24 and form an abutment fit with the abutment steps 29; the abutting plates 28 are in abutting fit on two sides of the copper core 1, so that the copper core 1 is prevented from moving left and right in the accommodating cavity 7; the abutment step 29 is in abutment fit with the abutment plate 28, and the abutment step 29 is also in abutment fit on the upper side of the copper core 1, and the lower side of the copper core 1 is in abutment fit on the bottom of the lower accommodating groove 25, so that the copper core 1 is prevented from moving up and down in the accommodating cavity 7.

Referring to fig. 7 and 8, in this embodiment, a plurality of positioning grooves 30 are further formed on the outer side of the abutment plate 28, positioning ribs 31 are further protruding below the abutment step 29 on the groove walls on both sides of the upper receiving groove 24, and the positioning ribs 31 are in snap fit with the positioning grooves 30.

The wiring assembly mode of this embodiment:

firstly, two wires to be connected are respectively penetrated into the wire through holes 10 of the two sealing plugs 9, after the wire heads penetrate through the sealing plugs 9, the sealing plugs 9 are pushed to the rear of the wires to keep a certain distance with the wire heads, then the wire cores of the two wire heads are inserted into the connecting channels on the copper core 1 through the openings 3 at the two ends of the copper core 1, the wire pressing bolts 5 on the copper core 1 are screwed to fix the wire cores in the copper core 1, then the copper core 1 and the heads of the two wires are placed into the lower accommodating grooves 25 of the lower shell 23, the two wires penetrate through the lower connecting grooves 27 to extend out of the lower shell 23, then the upper shell 22 can be covered on the lower shell 23, the copper core 1 is fixedly clamped between the upper shell 22 and the lower shell 23, then the sealing plugs 9 sleeved on the two wires are pushed to the insulating shell 6 from two sides, finally the wire cores 9 are penetrated into the connecting windows 8, and the limiting plates 17 are embedded into the limiting grooves 16, so that the clamping claws 19 and the lower shell 23 cannot be separated from each other even if the clamping claws 18 are matched with the lower shell 23;

when the insulating shell 6 needs to be disassembled to take out the copper core 1, a nail or a flat screwdriver can be inserted into the stirring gap 21, the stirring rib 20 is propped against from the inner side and pushed outwards, so that the clamping is separated from the clamping groove 18, and the sealing plug 9 and the connecting window 8 can be contacted and connected, and at the moment, the upper shell 22 and the lower shell 23 can be pulled to separate.

The advantage of this embodiment lies in, relies on the setting of sealing plug for this wire terminal is after the assembly is accomplished, and its inside holding chamber that is used for placing the copper core can keep sealing with the external world and keep isolated, makes this disconnection joint still can normally use even under moist environment that has water.

The above-described embodiments are provided for illustration only and not for limitation of the present utility model, and modifications may be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, as long as they are protected by patent laws within the scope of claims of the present utility model.

Claims (10)

1. A waterproof wire-terminal with high sealing properties, comprising:

the copper core (1) is provided with a wiring channel (2) for connecting wires in a penetrating way, the wiring channel (2) comprises two openings (3) positioned at two ends of the copper core (1), and the copper core (1) is also provided with a plurality of threaded holes (4);

the wire pressing bolt (5) is in threaded fit with the threaded hole (4) in the copper core (1);

the copper core insulation device comprises an insulation shell (6), wherein an accommodating cavity (7) for accommodating the copper core (1) is formed in the insulation shell, connecting windows (8) are formed in two ends of the insulation shell (6), and the accommodating cavity (7) is communicated with the outside of the insulation shell (6) through the connecting windows (8);

it is characterized in that the method also comprises the following steps:

the sealing plug (9) is connected in the connecting window (8) in a penetrating way, a through wire hole (10) through which a power supply wire passes is formed in the sealing way, the periphery of the sealing plug (9) is in sealing fit with the inner wall of the connecting window (8), and the inner wall of the through wire hole (10) can be in sealing fit with the periphery of the power wire in the through wire hole in a penetrating way, so that the accommodating cavity (7) is isolated from the outside of the insulating shell (6).

2. A waterproof wire-terminal with high sealing property according to claim 1, wherein: a first sealing ring (11) is embedded on the periphery of the sealing plug (9), and a second sealing ring (12) is embedded on the inner wall of the through line hole (10) of the sealing plug (9); the first sealing ring (11) is in interference fit between the peripheral side of the sealing ring and the inner wall of the connecting window (8), and the second sealing ring (12) is in interference fit between the inner wall of the through hole (10) and the peripheral side of the electric wire.

3. A waterproof wire-terminal with high sealing property according to claim 1, wherein: the inner side of the sealing plug (9) is also provided with a sealing column (13) towards the copper core (1) in a protruding mode, the top of the sealing column (13) stretches into the wiring channel (2) through the opening (3), and the peripheral side of the top of the sealing column (13) is in sealing fit with the opening (3) of the connecting channel.

4. A waterproof wire-terminal with high sealing property according to claim 3, wherein: the sealing post (13) top is offered and can be formed butt complex butt slope (14) with connecting channel's opening (3), still inlay on butt slope (14) and be equipped with third sealing washer (15), third sealing washer (15) interference fit is between butt slope (14) and connecting channel's opening (3).

5. A waterproof wire-terminal with high sealing property according to claim 1, wherein: limiting grooves (16) are formed in the insulating shell (6) and located on the upper side and the lower side of the connecting window (8), the limiting grooves (16) are communicated with the inner wall of the connecting window, block limiting plates (17) are symmetrically and convexly arranged on the periphery of the sealing plug (9), and when the sealing plug (9) is connected to the connecting window (8), the limiting plates (17) are embedded in the limiting grooves (16).

6. A waterproof wire-terminal with high sealing property according to claim 5, wherein: still seted up joint groove (18) in spacing groove (16), protruding joint claw (19) that can form joint complex with joint groove (18) towards spacing groove (16) on limiting plate (17).

7. A waterproof wire-terminal with high sealing property according to claim 5, wherein: the upper end of the limiting plate (17) is also convexly provided with a stirring rib (20), and a stirring gap (21) is arranged between the stirring rib (20) and the groove wall of the limiting groove (16).

8. A waterproof wire-terminal with high sealing property according to claim 1, wherein: the insulating shell (6) comprises an upper shell (22) and a lower shell (23); the accommodating cavity (7) is formed by splicing an upper accommodating groove (24) formed in the upper shell (22) and a lower accommodating groove (25) formed in the lower shell (23); the connecting window (8) is formed by splicing an upper connecting groove (26) formed on the upper shell (22) and a lower connecting groove (27) formed on the lower shell (23).

9. A waterproof wire-terminal with high sealing property according to claim 8, wherein: the lower shell (23) is provided with abutting plates (28) in a protruding mode on two sides of the lower accommodating groove (25), abutting steps (29) are formed in groove walls on two sides of the upper accommodating groove (24) of the upper shell (22), and the abutting plates (28) extend into the upper accommodating groove (24) and form abutting fit with the abutting steps (29).

10. A waterproof wire-terminal with high sealing property according to claim 9, wherein: a plurality of positioning grooves (30) are further formed in the outer side of the abutting plate (28), positioning ribs (31) are further arranged on the groove walls of the two sides of the upper accommodating groove (24) in a protruding mode and located below the abutting step (29), and the positioning ribs (31) are in clamping fit with the positioning grooves (30).