Waterproof plug

Abstract

The utility model provides a waterproof plug, and belongs to the technical field of connectors. The problem that an existing waterproof plug is not stable enough in connection is solved. The waterproof plug comprises a plugging end and a connecting end for plugging of the plugging end, the top of the plugging end is provided with a pressing plate plugged to the connecting end, a gap is formed between the pressing plate and the top of the plugging end, the inner end of the pressing plate is fixedly connected with the plugging end, the outer end of the pressing plate is suspended and extends out of the connecting end, and a buckle structure is arranged between the pressing plate and the connecting end. The connecting end is connected with a locking piece, and the outer end of the inserting end is provided with a limiting part for the locking piece to be clamped in. The connecting structure has the advantages of being good in connecting stability, good in use safety and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors and relates to a plug, in particular to a waterproof plug. Background Art

[0002] The waterproof plug has a waterproof function. It consists of two parts: the plug-in end and the connecting end. It is used to connect circuits and lines to ensure the normal use of various lines.

[0003] For example, Chinese patent literature discloses an improved waterproof plug [application number: 201720710042.X; authorization announcement number: CN214313699U], which includes a plug body, a sealing ring and a sealing cover, the front and rear sides and / or the left and right sides of the plug body are provided with connecting protrusions, the front and rear sides and / or the left and right sides of the sealing cover are extended with connecting steps, and the inner wall of the connecting step is provided with a connecting groove that is interlocked with the connecting protrusion.

[0004] The above-mentioned improved waterproof plug realizes the connection of the sealing cover by engaging the protrusion with the connecting groove, discarding the original barb part, which can reduce the overall volume, but the plug body is still connected by a hook for snap-on connection. Such connection is not stable enough, and there is a problem of the hook falling off during use, which poses a safety hazard. Summary of the invention

[0005] The utility model aims to solve the above problems existing in the prior art and provide a waterproof plug with good connection stability and good use safety.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a waterproof plug, comprising a plug-in end and a connecting end for the plug-in end to be plugged in, a pressing plate plugged into the connecting end is provided at the top of the plug-in end, a spacing is provided between the pressing plate and the top of the plug-in end, the inner end of the pressing plate is fixedly connected to the plug-in end, the outer end of the pressing plate is suspended and extends out of the connecting end, a snap-fit ​​structure is provided between the pressing plate and the connecting end, characterized in that the connecting end is connected to a locking piece, and the outer end of the plug-in end is provided with a limiting portion for the locking piece to be snapped into.

[0007] In the above-mentioned waterproof plug, the locking member is a locking ring with both ends hinged to the connecting end, and the limiting portion is located at the outer end of the plug end.

[0008] In the above-mentioned waterproof plug, the limiting portion is a limiting groove, and the locking ring has a straight rod portion that is inserted into the limiting groove.

[0009] In the above-mentioned waterproof plug, the top of the outer end of the plug-in end has two limit plates, the pressure plate is located between the two limit plates, the two limit plates have the limit grooves, and when the straight rod part is located in the limit groove, the straight rod part is supported on the lower part of the outer end of the pressure plate.

[0010] As another case, in the above waterproof plug, the locking member is a hook provided on both sides of the outer wall of the connection end, and the limiting portion is a groove provided on both sides of the outer wall of the plug end for the hook-shaped portion of the corresponding hook to be embedded. When the pressure plate and the connection end are buckled, the hook-shaped portions of the two hooks are embedded in the corresponding grooves on both sides of the outer wall of the plug end, achieving a double locking effect. During use, the plug end and the connection end will not fall off, the connection is stable, and the use is safe; when the locking effect of the locking member needs to be released, the hook is pulled to make the hook-shaped portion disengage from the groove.

[0011] In the above-mentioned waterproof plug, the buckle structure includes a card block 1 on both sides of the pressure plate, the end faces of the two card blocks 1 facing the connecting end are inclined surfaces and make the bottom surface area of ​​the card block 1 larger than the top surface area, and the inner wall at the top of the connecting end has two card blocks 2 corresponding to the card block 1, and the outer end faces of the two card blocks 2 are inclined surfaces inclined inward.

[0012] Compared with the prior art, the waterproof plug has a double anti-falling function, the connection between the plug end and the connecting end is stable, and during use, the plug end will not fall off from the connecting end even if it is stressed, so it is safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the waterproof plug.

[0014] Figure 2 It is a structural sectional view of the waterproof plug.

[0015] Figure 3 It is a three-dimensional structural diagram of the connection end of the waterproof plug.

[0016] Figure 4 It is a three-dimensional structural diagram of the plug end of the waterproof plug.

[0017] In the figure, 1, plug-in end; 2, connecting end; 3, pressure plate; 4, locking ring; 41, straight rod; 5, limiting groove; 6, limiting plate; 7, clamping block 1; 8, clamping block 2. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the waterproof plug includes a plug-in end 1 and a connecting end 2 for the plug-in end 1 to be plugged into, a pressing plate 3 plugged into the connecting end 2 is provided at the top of the plug-in end 1, a spacing is provided between the pressing plate 3 and the top of the plug-in end 1, and the inner end of the pressing plate 3 is fixedly connected to the plug-in end 1, the outer end of the pressing plate 3 is suspended and extends out of the connecting end 2, a snap-fit ​​structure is provided between the pressing plate 3 and the connecting end 2, a locking piece is connected to the connecting end 2, and a limiting portion for the locking piece to be snapped into is provided at the outer end of the plug-in end 1.

[0020] After the plug-in end 1 and the connecting end 2 in the waterproof plug are plugged in, the buckle structure makes the pressure plate 3 and the connecting end 2 buckle together to prevent the plug-in end 1 and the connecting end 2 from falling off, and the limiting portion of the plug-in end 1 is provided for the locking member to be locked in, so that the plug-in end 1 is further limited, and a double anti-falling effect is achieved. The connection between the plug-in end 1 and the connecting end 2 is stable. During use, the plug-in end 1 will not fall off from the connecting end 2 even if it is subjected to force, and the use safety is good.

[0021] The locking member is a locking ring 4 hinged at both ends to the connecting end 2, and the limiting part is located at the outer end of the plug-in end 1. The top of the connecting end 2 has a bulge to accommodate the raised part of the pressure plate 3, and the two sides of the raised part are for the two ends of the locking ring 4 to be inserted for hinge connection. When the pressure plate 3 and the connecting end 2 are buckled, the locking ring 4 rotates with the hinge axis, and the part of the locking ring 4 away from the hinge rotates to the outer end of the plug-in end 1 and is snapped into the limiting part to lock. If the locking effect of the locking ring 4 is not released, the plug-in end 1 cannot fall off, and the connection is stable and safe to use. When the locking effect of the locking ring 4 needs to be released, press the plug-in end 1 and pull the locking ring 4 to make the locking ring 4 disengage from the limiting part.

[0022] The limiting portion is a limiting groove 5, and the locking ring 4 has a straight rod portion 41 that is inserted into the limiting groove 5. In this way, the locking ring 4 is firmly limited, and the plug end 1 will not fall off when subjected to a pulling force.

[0023] In this embodiment, the top of the outer end of the plug-in terminal 1 is provided with two limiting plates 6, and the pressing plate 3 is located between the two limiting plates 6. The two limiting plates 6 have limiting grooves 5. When the straight rod portion 41 is located in the limiting grooves 5, the straight rod portion 41 is supported at the lower part of the outer end of the pressing plate 3. The limiting plates 6 limit the pressing plate 3 to prevent the pressing plate 3 from shaking. When the locking ring 4 is locked, that is, the straight rod portion 41 is located in the limiting grooves 5, the straight rod portion 41 supports the outer end of the pressing plate 3. Without releasing the locking effect of the locking ring 4, the pressing plate 3 cannot be pressed down, and the pressing plate 3 is prevented from being pressed down to release the buckle effect of the buckle structure. The plug-in terminal 1 and the connection terminal 2 are firmly connected.

[0024] The buckle structure includes a clamping block 7 on both sides of the pressure plate 3. The end faces of the two clamping blocks 7 facing the connection end 2 are inclined surfaces, and the bottom surface area of ​​the clamping block 7 is larger than the top surface area. The inner wall at the top of the connection end 2 has two clamping blocks 8 corresponding to the clamping blocks 1 7, and the outer end faces of the two clamping blocks 2 8 are inclined surfaces inclined inward. When the plug-in end 1 is inserted into the connection end 2, the inclined surfaces of the clamping blocks 1 7 and 2 8 collide with each other, so that the pressure plate 3 is pressed down. After the plug-in end 1 is inserted into the connection end 2, the elasticity of the pressure plate 3 itself makes the clamping block 1 7 rise and be located on the inner side of the clamping block 2 8, and the clamping block 1 7 contacts the clamping block 2 8, so that the plug-in end 1 and the connection end 2 will not fall off. After releasing the locking effect of the locking member, the pressure plate 3 is pressed so that the clamping block 1 7 is lower than the clamping block 2 8, and the plug-in end 1 is driven to move outward, so that the plug-in end 1 and the connection end 2 are separated.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A waterproof plug, comprising a plug end (1) and a connecting end (2) for the plug end (1) to be plugged into, a pressing plate (3) plugged into the connecting end (2) is provided at the top of the plug end (1), a spacing is provided between the pressing plate (3) and the top of the plug end (1), the inner end of the pressing plate (3) is fixedly connected to the plug end (1), the outer end of the pressing plate (3) is suspended and extends out of the connecting end (2), a buckle structure is provided between the pressing plate (3) and the connecting end (2), and the plug end (1) is characterized in that: The connecting end (2) is connected to a locking piece, and the outer end of the plug-in end (1) is provided with a limiting portion for the locking piece to be engaged.

2. The waterproof plug according to claim 1, characterized in that: The locking member is a locking ring (4) whose two ends are hinged to the connecting end (2), and the limiting portion is located at the outer end of the plug-in end (1).

3. The waterproof plug according to claim 2, characterized in that: The limiting portion is a limiting groove (5), and the locking ring (4) has a straight rod portion (41) that is snapped into the limiting groove (5).

4. The waterproof plug according to claim 3, characterized in that: The top of the outer end of the plug-in end (1) is provided with two limit plates (6), the pressing plate (3) is located between the two limit plates (6), the two limit plates (6) have the limit grooves (5), and when the straight rod portion (41) is located in the limit grooves (5), the straight rod portion (41) is supported on the lower part of the outer end of the pressing plate (3).

5. The waterproof plug according to claim 1, characterized in that: The locking member is a hook provided on the outer walls on both sides of the connecting end (2), and the limiting portion is a groove provided on the outer walls on both sides of the plug-in end (1) for the hook-shaped portion of the corresponding hook to be embedded in.

6. The waterproof plug according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The buckle structure comprises a first clamping block (7) on both sides of the pressure plate (3), the end faces of the two first clamping blocks (7) facing the connection end (2) are inclined surfaces and the bottom surface area of ​​the first clamping block (7) is larger than the top surface area thereof, and the top inner wall of the connection end (2) has two second clamping blocks (8) corresponding to the first clamping blocks (7), and the outer end faces of the two second clamping blocks (8) are inclined surfaces inclined inwardly.

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