CN218548903U - Plug and connector thereof - Google Patents

Abstract

The utility model provides a plug, including plug housing, tail cover and button, plug housing middle part up end axial molding has the mounting groove that supplies the slider to put into and move about, the through-hole that the front end that supplies the slider stretched out is seted up to the mounting groove front end, the slider front end stretches out the mounting groove and forms the hasp portion with corresponding socket/plug cooperation locking, the slider rear end upwards extends has the inclined plane and forward bending type to become the pawl portion of being connected with the button cooperation, it has reset spring to support between mounting groove rear end inner wall and the slider rear end, the button sets up and is located the slider top in the mounting groove, the button rear end is articulated with the mounting groove rear end, the button front end is bent type to become the hook portion that offsets with the pawl portion cooperation, the button upper end is equipped with the sealed key cover that cup joints with the mounting groove. The utility model also discloses a relevant connector. The utility model has the advantages of simple and reasonable structure, can realize quick plug, the locking is firm stable, and waterproof performance is good, and the button is difficult for droing simultaneously, and the dismouting is very convenient.

Description

Plug and connector thereof

Technical Field

The utility model relates to a connector, concretely relates to plug that waterproof performance is good and connector thereof.

Background

With the continuous development of science and technology, people can not work and live with electric power. In order to facilitate the use of electricity, various practical connectors have been created, which are connecting devices for connecting a plurality of signal lines or power lines in order for transmitting electric current or signals.

The existing connector is not ideal enough in waterproof performance, and mostly has the following defects: 1. the position of the unlocking structure cannot be waterproofed by using a sealing ring. The unlocking structure of the existing connector mostly adopts a key type, generally, a through groove is directly formed in the body, the key is placed in the through groove, and the through groove is communicated with the internal structure, so that external water easily enters the internal structure from gaps around the key, and the external water can directly influence an electric appliance in use. 2. After unlocking, the product is no longer in a sealed state, and water flowing in from the gap risks flowing into the interior of the product and accumulating. The two points are great hidden dangers to the product protection performance, so that the waterproof of the connector unlocking structure is a technical problem which is urgently needed to be solved at present.

It has been found that the chinese patent No. 201680013601.3, the plug-in connector with plug-in positioning element, comprises a cylindrical housing having at least one step constituting two different regions with different housing diameters, a region with a smaller diameter constituting a plug-in region and a region with a larger diameter constituting a receptacle region; the plug-in connector is provided with a locking piece which is connected with the shell in a loss-proof way, and the plug-in connector is provided with an operating piece which is connected with the locking piece in an action way; the plug-in connector has a plug-in positioning element which at least partially surrounds the plug-in region. Such a connector can achieve a quick insertion and removal function, but the waterproof performance is also not ideal, and further improvement is required.

Disclosure of Invention

The utility model aims to solve the first technical problem that provides a rational in infrastructure, waterproof performance is good, convenient operation's plug to foretell technical current situation.

The second technical problem to be solved in the present invention is to provide a connector with reasonable structure, good waterproof performance and convenient operation.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: the utility model provides a plug, includes plug housing, tail cover and button, plug housing's rear end is connected with the tail cover, installs inner core subassembly, its characterized in that at plug housing's front end middle part embedding: the plug comprises a plug shell, a plug body, a sliding piece, a sliding block, a key and a key sleeve, wherein the upper surface of the middle part of the plug shell is axially formed with a mounting groove for the sliding piece to be placed in and move forwards in a limiting mode, the front end of the mounting groove is provided with a through hole for the sliding piece to extend out, the front end of the sliding piece extends out of the mounting groove to form a locking part matched and locked with a corresponding socket/plug, the rear end of the sliding piece upwards extends to form an inclined plane and a clamping claw part matched and connected with the key, a reset spring is supported between the inner wall of the rear end of the mounting groove and the rear end of the sliding piece to enable the sliding piece to move forwards all the time, the key is arranged in the mounting groove and located above the sliding piece, the rear end of the key is hinged to the upper part of the rear end of the mounting groove, the front end of the key is downwards bent backwards to form a clamping hook part matched and abutted against the clamping claw part and the inclined plane of the sliding piece, when the key is pressed downwards, the sliding block moves backwards under the action of the key, the front end of the sliding block retracts into the mounting groove to realize unlocking, and the key sleeve is arranged above the key and is in a sealing manner.

As an improvement, the plug shell is a cylindrical insulating shell and is divided into a front section, a middle section and a rear section, wherein the front section is a diameter-reduced cylindrical insertion section inserted with the socket, the rear section is an external thread connecting section connected with the tail sleeve, a step surface contacting with the socket is formed between the middle section and the front section of the plug shell, an annular groove is formed in the step surface, and a sealing ring is embedded in the annular groove.

Further, the mounting groove is upper end open-ended bar recess, the bottom surface of mounting groove flushes with plug housing's grafting section phase basically, the slider divide into two-section around, the anterior segment is the strip shaped plate with mounting groove matched with, the grafting section is hugged closely to the through-hole of mounting groove front end and is seted up, the back end is the three hornblocks in right angle, pawl part sets up the upper end at the three hornblocks in right angle, be equipped with a spring hole in the rear end of three hornblocks in right angle, reset spring supports between the rear end inner wall and the spring hole of mounting groove, make the slider have the trend that moves forward all the time and make hasp portion stretch out the mounting groove.

And when the key is pressed downwards, the hook part moves downwards along the inclined plane to push the sliding part to overcome the acting force of the reset spring to move backwards.

And furthermore, limiting blocks are arranged on the left side and the right side of the front part of the inner wall of the mounting groove, and a stop block matched with the limiting blocks is upwards and convexly arranged at the rear end of the front section strip-shaped plate of the sliding part.

Furthermore, the periphery of the upper end face of the plug shell and the mounting groove is provided with a buckling groove for clamping the outer edge of the key sleeve, the outer side of the buckling groove is provided with a buckling point, and the outer edge of the key sleeve is buckled in the buckling groove and is in sealed pressing and positioning with the mounting groove through the matching of the buckling sleeve and the buckling point.

Furthermore, the front end of the tail sleeve is provided with an internal thread hole corresponding to the external thread connecting section of the plug shell, the rear end of the tail sleeve is provided with a through hole for the cable to penetrate through, and the plug shell is fixedly connected with the tail sleeve through threads.

Finally, the plug may be a male plug or a female plug.

The utility model provides a technical scheme that above-mentioned second technical problem adopted is: a connector, characterized by: the male plug comprises the male plug body and the female plug comprises the male plug body, wherein a positioning convex rib is axially arranged on the outer peripheral face of the front end of the inserting section of the male plug body, a corresponding positioning groove is axially formed in the inner wall of the inserting section of the female plug body, and a locking position matched with a locking part of a sliding piece on the male plug body is further arranged in the female plug body.

Further, the connector is not limited to a combination of mating male plug and female plug, but may also be a combination of mating male plug and female socket, or a combination of mating female plug and male socket.

Compared with the prior art, the utility model has the advantages of: the key, the sliding part and the reset spring are arranged in the mounting groove of the plug shell and are sleeved outside the mounting groove through the key sleeve and the buckle sleeve for sealing and fixing, so that external water is prevented from entering the interior from gaps around the key, and the unlocking structure is waterproof in the mounting groove; the sealing ring is arranged on the step surface of the plug shell, so that the sealing ring positioned on the outer side of the sliding part is attached to the end surface of the matched socket/plug to form sealing and water proofing, water is prevented from entering the inner wall from the through hole extending out of the sliding part, and the water proofing of the through hole is realized. The utility model has the advantages of simple and reasonable structure, not only can realize quick plug, the locking is firm stable simultaneously, and waterproof performance is good moreover, can reach the dustproof level 6 grades of the authoritative detection of country, waterproof level 7 grades of requirements, and the button is difficult for droing simultaneously, long service life, and the dismouting is also very convenient.

Drawings

Fig. 1 is a schematic structural view of a male plug according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of the female plug of the present invention

FIG. 3 is a cross-sectional view of a male plug;

FIG. 4 is a schematic view of a plug housing of the male plug;

FIG. 5 is a schematic structural view of a slider;

FIG. 6 is a cross-sectional view of the female plug;

fig. 7 is a schematic structural diagram of a connector of the present invention, which is used for matching a male plug with a female plug in embodiment 2.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1, 3, 4 and 5, a plug comprises a plug shell 1, a tail sleeve 2, a key 3 and an inner core assembly 5, wherein the plug shell 1 is a cylindrical insulating shell, the plug shell 1 is divided into a front section, a middle section and a rear section, the front section is a cylindrical plug section 11 which is plugged with a corresponding socket/plug, the rear section is an external thread connecting section 12 which is connected with the tail sleeve 2, the front end of the tail sleeve 2 is provided with an internal thread hole which corresponds to the external thread connecting section 12 of the plug shell 1, the rear end of the tail sleeve 2 is provided with a through hole for a cable to pass through, the plug shell 1 is fixedly connected with the tail sleeve 2 through a thread, a step surface 18 which is contacted with the corresponding socket/plug is formed between the middle section and the front section of the plug shell 1, a circular groove is formed on the step surface 18, a sealing ring 7 is embedded in the circular groove, the inner core assembly 5 is embedded in the middle part of the front end of the plug shell 1, the upper surface of the middle part of the plug shell 1 is axially formed with a mounting groove 13 for the sliding part 4 to be inserted and to limit the movement forwards and backwards, the mounting groove 13 is a strip-shaped groove with an open upper end, the bottom surface of the mounting groove 13 is basically flush with the plugging section 11 of the plug shell 1, the mounting groove 13 is internally provided with the sliding part 4 capable of moving forwards and backwards, the sliding part 4 is divided into a front section and a rear section, the front section is a strip-shaped plate matched with the mounting groove 13, the front end of the mounting groove 13 is provided with a flat through hole 15 with a slight arc shape for the front end of the sliding part 4 to extend out, the front end of the sliding part 4 extends out of the mounting groove 13 to form a locking part 41 matched and locked with a corresponding socket/plug, because the sealing ring 7 is arranged on the outer wall, the sealing ring 7 forms a sealing and water-proof effect after being attached to the end surface of the matched socket/plug, and prevents water from entering the inner wall from the through hole 15 where the sliding part 4 extends out, and the waterproof at the through hole is realized. The front section of the sliding part 4 extends backwards and upwards to form an inclined plane, the rear section of the sliding part 4 is a right-angled triangular block 43, the upper end of the right-angled triangular block 43 is bent upwards and forwards to form a clamping claw part 42 which is matched and connected with the key 4, the rear end of the right-angled triangular block 43 is provided with a spring hole 44, the return spring 6 is supported between the inner wall of the rear end of the mounting groove 13 and the spring hole 44, and the sliding part 4 has the tendency of always moving forwards to enable the locking part 41 to extend out of the mounting groove 13. The key 3 is arranged in the mounting groove 13 and located above the sliding part 4, the key 3 is of a U-shaped structure with an open lower end and inclined backward, a connecting hole 16 is formed in the upper portion of the rear end of the mounting groove 13, the rear end of the key 3 is hinged to the upper portion of the rear end of the mounting groove 13 through a fixing pin 8, the front end of the key 3 bends downward and backward to form a clamping hook portion 31 matched and abutted to a clamping claw portion 42 of the sliding part 4, the clamping hook portion 31 is arranged below the clamping claw portion 42 of the sliding part 4 and abutted to an inclined surface of the right-angled triangular block 42, when the key 3 is pressed downward, the clamping hook portion 31 moves downward along the inclined surface and pushes the sliding part 4 to move backward to overcome the acting force of the reset spring 6, so that a front-end locking portion 41 of the sliding block 4 retracts into the mounting groove 13, and unlocking is achieved. The upper end of the key 3 is provided with a key sleeve 30 which is in sealed sleeve connection with the mounting groove 13, the periphery of the plug shell 1 and the mounting groove 13 is provided with a buckling groove 19 for clamping the outer edge of the key sleeve 30, the outer side of the buckling groove 19 is provided with a buckling point 17, the outer edge of the key sleeve 30 is buckled into the buckling groove 19 and is in sealed press fit and location with the mounting groove 13 through the matching of a ring sleeve-shaped buckling sleeve 9 of the key sleeve and the buckling point 17, so that external water is prevented from entering the interior from gaps around the key 3, and the water prevention of the unlocking structure in the mounting groove 13 is realized. Limiting blocks 131 are arranged on the left side and the right side of the front portion of the inner wall of the mounting groove 13, and a stop block 45 matched with the limiting blocks 131 is arranged at the rear end of the front section strip-shaped plate of the sliding piece 4 in an upward protruding mode.

The working principle is as follows:

1. when the product is in a normal state, the internal return spring 6 is in a natural state, the return spring 6 gives the forward movement tendency and stress to the sliding part 4, and the sliding part 4 is limited at a specific position due to the special design of the structure of the key 3, and the head of the sliding part 4 at the specific position extends out of the plug shell 1;

2. during unlocking, the key sleeve 30 needs to be manually pressed down, the key sleeve 30 drives the key 3 to rotate downwards along the axis of the fixing pin 8, the key 3 rotates downwards to drive the sliding piece 4 to horizontally move backwards, and at the moment, the return spring 6 is pressed. When the key 3 is pressed to the bottom, the whole sliding part 4 enters the plug shell 1;

3. the unlocking state is required to return to the normal state, as long as the key sleeve 30 is loosened, the pressing action is cancelled, the sliding piece 4 can horizontally slide forwards under the reset force of the reset spring 6, the sliding block 4 drives the key 3 to upwards rotate and reset by taking the fixed pin 8 as the axis when sliding, the key 3 resets to the limiting position and is attached to the key sleeve 30, and the key sleeve 30 can reset due to the inherent elasticity of the rubber piece.

The assembly process of the key 4 is as follows:

1. the sliding piece 4 is vertically arranged in the mounting groove 13 from the upper part of the plug shell 1;

2. the sliding part 4 is placed in the mounting groove 13 and then slides forwards to a limiting position;

3. a return spring 6 is arranged, one end of the return spring 6 is inserted into a spring hole 44 at the rear end of the sliding piece 4, and the other end of the return spring abuts against the rear end face of the inner wall of the mounting groove 13;

4. the sliding piece 4 is pressed back, the return spring 6 is compressed and contracted, the key 3 is put in from the top, the sliding piece 4 is released, the return spring 6 is reset, and the sliding piece 4 is buckled on the key 3 after being reset;

5. transversely inserting a fixing pin 8 from the outside of the plug shell 1 and penetrating through the key 3 to ensure that the key 3 is hinged and fixed with the plug shell 1;

6. the key sleeve 30 is arranged from top to bottom and covers the mounting groove 13;

7. the button sleeve buckling sleeve 9 is installed from top to bottom, so that the buckling position is pressed into the buckle of the plug shell 1, pressing and fixing are achieved, and the assembly of the button is completed.

The plug of this embodiment is a male plug B, the plug is not limited to the male plug B, but may also be a female plug a, the structure of the female plug a is shown in fig. 2 and 6, and includes a plug housing 1, a tail sleeve 2, a key 3, and an inner core assembly 5, and the structure of the key 3 is identical to that of the male plug B.

Example 2

A connector comprises a male plug B and a female plug A, wherein a positioning convex rib 111 is axially arranged on the outer peripheral surface of the front end of an insertion section 11 of the male plug B, a corresponding positioning groove 100 is axially arranged on the inner wall of the insertion section 11 of the female plug A, and a locking position 101 matched with a locking part 41 of a sliding part 4 on the male plug B is further arranged in the female plug A.

The specific operation process is as follows:

1. the male plug B and the female plug A are directly inserted and matched according to the foolproof structure;

2. when the end face of the male plug B props against the sliding piece 4 of the female plug A, the male plug B is continuously inserted in the axial direction;

3. the sliding piece 4 of the female plug A slides inwards under the pushing force of the shell of the male plug B, and the female plug A is rotated after the female plug A is inserted in place;

4. when the plug is rotated to the limiting position, the sliding block 4 of the female plug A rebounds, and the locking is prompted by a 'snap' sound. In this state, the plug cannot rotate and be axially plugged and pulled, so that locking is realized.

5. The key sleeve 30 is pressed down, the sliding block 4 retracts, the plug is rotated, the plug is axially pulled out, and the two plugs are unlocked.

The connector of the embodiment is not limited to the combination of the butt joint of the male plug B and the female plug a, and may also be the combination of the butt joint of the male plug B and the female socket, or the combination of the butt joint of the female plug a and the male socket.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a plug, includes plug housing, tail cover and button, plug housing's rear end is connected with the tail cover, installs inner core subassembly, its characterized in that at plug housing's front end middle part embedding: the plug comprises a plug shell, a plug body, a sliding piece, a key and a key sleeve, wherein the upper surface of the middle part of the plug shell is axially formed with a mounting groove for the sliding piece to be placed in and move forwards in a limiting mode, the front end of the mounting groove is provided with a through hole for the front end of the sliding piece to extend out, the front end of the sliding piece extends out of the mounting groove to form a locking part matched and locked with a corresponding socket/plug, the rear end of the sliding piece upwards extends to form a bevel and a clamping claw part matched and connected with the key, a reset spring is supported between the inner wall of the rear end of the mounting groove and the rear end of the sliding piece to enable the sliding piece to have a trend of moving forwards all the time, the key is arranged in the mounting groove and positioned above the sliding piece, the rear end of the key is hinged to the upper part of the rear end of the mounting groove, the front end of the key is downwards bent backwards to form a clamping hook part matched and abutted against the clamping claw part and the bevel of the sliding piece, when the key is pressed downwards, the sliding piece moves backwards under the action of the key, the locking part of the sliding piece retracts into the mounting groove to realize unlocking, and the key sleeve is arranged above the key and is in a sealed and sleeved mode with the mounting groove.

2. The plug of claim 1, wherein: the plug shell is a cylindrical insulating shell and is divided into a front section, a middle section and a rear section, wherein the front section is a reducing cylindrical insertion section inserted with the socket, the rear section is an external thread connecting section connected with the tail sleeve, a step surface in contact with the socket is formed between the middle section and the front section of the plug shell, an annular groove is formed in the step surface, and a sealing ring is embedded in the annular groove.

3. The plug of claim 2, wherein: the mounting groove is upper end open-ended bar recess, the bottom surface of mounting groove flushes with plug housing's grafting section basically, the slider divide into two-section around, the anterior segment is the strip shaped plate with mounting groove matched with, the grafting section is hugged closely to the through-hole of mounting groove front end and is seted up, the back end is the three hornblocks in right angle, pawl part sets up the upper end at the three hornblocks in right angle, be equipped with a spring hole in the rear end of three hornblocks in right angle, reset spring supports between the rear end inner wall of mounting groove and spring hole, make the slider have the trend that moves forward all the time and make hasp portion stretch out the mounting groove.

4. The plug of claim 3, wherein: the button is in a U shape with an opening at the lower end and inclining backwards, the rear end of the button is hinged with the upper part of the rear end of the mounting groove through a fixing pin, the clamping hook part at the front end of the button is arranged below the clamping jaw part of the sliding part and is abutted against the inclined surface of the right-angled triangular block, and when the button is pressed downwards, the clamping hook part moves downwards along the inclined surface to push the sliding part to move backwards by overcoming the acting force of the reset spring.

5. The plug of claim 4, wherein: the anterior left and right sides of inner wall of mounting groove is equipped with the stopper, the rear end of the anterior segment bar shaped plate of slider upwards protruding be equipped with stopper complex dog.

6. The plug of claim 1, wherein: the outer peripheries of the upper end face of the plug shell and the mounting groove are provided with buckling grooves for clamping the outer edges of the key sleeves, the outer sides of the buckling grooves are provided with buckling points, and the outer edges of the key sleeves are buckled in the buckling grooves and are in sealed pressing and positioning with the mounting groove through the matching of the buckling sleeves and the buckling points.

7. The plug according to any one of claims 1 to 6, wherein: the tail sleeve front end is equipped with the internal thread hole that corresponds with the external screw thread linkage section of plug housing, and the through-hole that the power cable put is worn is seted up to the rear end of tail sleeve, and plug housing passes through threaded connection with the tail sleeve and fixes.

8. The plug according to any one of claims 1 to 6, wherein: the plug is a male plug or a female plug.

9. A connector, characterized by: the male plug and the female plug as claimed in claim 8, wherein the male plug has a positioning rib axially formed on the outer peripheral surface of the front end of the insertion section, a corresponding positioning groove axially formed on the inner wall of the front end of the insertion section of the female plug, and a locking position engaged with the locking portion of the slider of the male plug is formed in the female plug.

10. The connector of claim 9, wherein: the connector is a butt-joint combination of a male plug and a female socket, or a butt-joint combination of a female plug and a male socket.

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