Waterproof cover structure of connector

Abstract

A waterproof cover structure of a connector is characterized in that the waterproof cover comprises an inner core and an outer cover, the inner core is of a reducing cylindrical structure which is in matched insertion connection with an insertion port of the connector, the outer cover is a cover matched with the outer end face of the connector, the outer cover wraps the rear end of the inner core, and a locking structure matched with the connector is arranged on the inner core. The waterproof cover is provided with a locking structure which is matched and locked with the connector, so that the waterproof cover is stable and reliable after covering and is not easy to fall off; the locking structure can be a rotary lock catch, a glass bead type lock catch or a lock spring type lock catch, and locking is fast, convenient, firm and stable. The power distribution cabinet has the advantages of being reasonable in structural design, good in protection effect and long in service life, and the protection grade and the power utilization safety are effectively improved through the arrangement of the locking structure.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a waterproof cover structure of a connector. Background Art

[0002] A connector is a connection device that connects multiple signal lines or power lines in sequence. In order to be suitable for use in various occasions, the requirements for the waterproof performance of connectors are becoming increasingly higher. Currently, connectors on the market often come with waterproof covers, so that when the connector is not in use, the waterproof cover is covered to prevent external rainwater from entering, and it also plays a dust-proof role. Existing connectors generally use hard materials, such as plastic, zinc alloy, aluminum alloy, copper, etc., while waterproof covers generally use soft materials, such as rubber. Existing waterproof covers have the following defects during use: The waterproof cover is directly covered on the mating port of the connector, and there is no locking structure between the waterproof cover and the connector (plug or socket), which easily causes the waterproof cover to be loose or detached from the mating port, affecting the protection level or protection failure, affecting use.

[0003] After investigation, the existing Chinese patent number CN202320373160.5, "A Waterproof Network Connector", includes a plug assembly and a socket assembly, the socket assembly includes a socket body, a network port slot arranged on one end face of the socket body, a limit plate arranged on the other end of the socket body, a second fastening thread arranged on the peripheral wall of the socket body, a second waterproof pad sleeved outside the socket body, a waterproof cover assembly connected to the socket body, and a parallel cap nut threadedly sleeved outside the second fastening thread; the waterproof cover assembly includes a connecting portion, a cover body and a sleeve portion, the sleeve portion is sleeved outside the socket body, the connecting portion connects the sleeve portion and the cover body, and the cover body is used to be threadedly connected with the second fastening thread. The cover body of the connector provided with a waterproof cover assembly is connected to the socket body by a threaded connection, which improves the stability of the connection between the two, but the operation is very inconvenient, and the thread needs to be processed, which increases the processing cost. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a waterproof cover structure of a connector with a simple and reasonable structure, good protection effect and stable and reliable connection in view of the above technical status quo.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a waterproof cover structure of a connector, characterized in that: the waterproof cover includes a connected inner core and an outer cover, wherein the inner core is a reduced diameter cylindrical structure that cooperates with the plug interface of the connector, and the outer cover is a cover that cooperates with the outer end face of the connector, the outer cover is covered on the rear end of the inner core, and the inner core is provided with a locking structure that cooperates with the connector.

[0006] Preferably, the locking structure on the inner core includes but is not limited to a rotary lock, a glass bead lock or a spring lock.

[0007] Further, the rotary lock is specifically as follows: a plurality of strip locks are convexly provided at circumferential intervals on the outer circumferential surface of the front end of the inner core, a corresponding strip groove is formed on the inner wall of the plug-in interface of the connector, the inner end of the strip groove is bent clockwise to form a lock step, the inner core of the waterproof cover is inserted along the strip groove through the strip lock and then rotated clockwise to lock with the lock step; or a plurality of strip grooves are formed on the inner wall of the cylindrical structure of the inner core, the bottom of the strip groove is bent to form a lock groove, a plug-in inner core is provided in the plug-in end of the connector, and corresponding convex strips are circumferentially provided on the outer end circumferential surface of the plug-in inner core, the inner core of the waterproof cover is inserted through the strip groove and the convex strip and then rotated to lock with the connector.

[0008] Furthermore, there are four strip-shaped lock buckles evenly spaced apart, and correspondingly, there are four strip-shaped grooves in the plug-in interface of the connector.

[0009] Furthermore, the glass bead type lock is specifically as follows: a blind hole is opened in the middle of the outer circumferential surface of the inner core, a steel ball is installed in the blind hole, a corresponding lock groove is formed on the inner wall of the connector interface, and the lower end of the steel ball in the blind hole is supported by a spring, so that the steel ball has a tendency to always pop outward and lock with the lock groove.

[0010] Furthermore, the blind hole is opened at a position close to the front end of the outer cover, the front end of the plug interface is conical, and the outer periphery of the front end surface of the outer cover is formed with a trumpet-shaped extension portion that matches the conical surface of the plug interface. An outer shell is fixed in the blind hole of the outer cover, and a steel ball and a spring are arranged in the outer shell. When the inner core is inserted into place and the steel ball is locked with the locking groove, the extension portion of the outer cover is just sleeved on the outside of the plug interface and sealed.

[0011] Furthermore, the lock spring type lock is specifically as follows: the front end of the inner core is hollow, a lock hole is provided on the side, a lock spring is provided in the plug interface of the connector, and a lock buckle that cooperates with the lock hole is convexly provided on the lock spring. After the inner core is inserted, the lock buckle is just stuck in the lock hole to lock the waterproof cover and the connector.

[0012] Furthermore, the inner core is made of a hard material, the outer cover is made of a soft material, the outer side wall of the outer cover is connected to a protective pad via a connecting piece, and the outer cover, the connecting piece and the protective pad are an integrated piece.

[0013] Finally, when the connector has two plug interfaces, there are two protective covers, and the two protective covers are connected to the same protective pad through respective connecting pieces to form an integral part.

[0014] Compared with the prior art, the advantages of the utility model are: the waterproof cover has a locking structure that cooperates with the connector to lock, so that the waterproof cover is stable and reliable after closing, and is not easy to fall off; the locking structure can adopt a rotary lock, a glass bead lock or a lock spring lock, which is fast, convenient, firm and stable to lock; the inner core is made of hard material, and the outer cover is made of soft material, which greatly increases the strength of the product, is not easy to deform, and effectively avoids the occurrence of cooperation failure. The utility model has the characteristics of reasonable structural design, good protection effect, and stable and reliable connection. By setting a locking structure, the protection level and electrical safety are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0016] Figure 2 for Figure 1 Front view of

[0017] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the utility model in a closed state;

[0018] Figure 4 for Figure 3 A partial three-dimensional cross-sectional view of

[0019] Figure 5 for Figure 4 A cross-sectional view of

[0020] Figure 6 Assembly diagram of embodiment 1 of the utility model;

[0021] Figure 7 It is a partial three-dimensional cross-sectional view of the embodiment 2 of the utility model after assembly;

[0022] Figure 8 is a partial three-dimensional cross-sectional view of Example 2 before assembly;

[0023] Fig. 9 It is the assembly diagram of Example 2;

[0024] Fig.10 A partial three-dimensional cross-sectional view of the embodiment 3 of the utility model after assembly;

[0025] Fig.11 is a partial three-dimensional cross-sectional view of Example 3 before assembly;

[0026] Fig.12 It is the assembly diagram of Example 3;

[0027] Fig.13 This is a schematic diagram of the structure of Example 4 of the utility model. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Example 1

[0030] like Figures 1 to 6 As shown in Figures 8 and 9, a waterproof cover structure of a connector, the waterproof cover A includes an inner core 1 and an outer cover 2 which are connected to each other, wherein the inner core 1 is a cylindrical structure with a reduced diameter that is plugged into the plug interface of the connector 5, and the inner core 1 is made of a hard material, and the outer cover 2 is a circular cover that is matched with the outer end surface of the connector 5, and the outer cover 2 is made of a soft material. After the inner core 1 of the waterproof cover A is plugged into the connector 5, the outer cover 2 and the outer end surface of the connector 5 are in contact and sealed to realize the first layer of external protection structure 10, and the inner core 2 is inserted into the connector 5 and is in contact and sealed with the inner cavity of the connector 5 to realize the second layer of internal protection structure 20.

[0031] The outer periphery of the rear section of the inner core 1 is formed with an annular groove 15 for the outer cover 2 to be embedded and covered. The rear end of the inner core 1 is provided with a handle portion. The inner wall of the front end of the outer cover 2 is provided with a convex ring 23 that matches the annular groove 15. The rear end of the outer cover 2 is provided with a handle sleeve 21 that matches the handle portion. The outer wall of the outer cover 2 is connected to a protective pad 4 through a connecting piece 3. The outer cover 2, the connecting piece 3 and the protective pad 4 are an integral part.

[0032] The structure of the inner core 1 is matched according to the structural design of the plug interface of the connector A, and the inner core A is provided with a locking structure that matches the connector 5.

[0033] The locking structure of the present embodiment adopts a rotary lock, specifically: a plurality of strip locks 11 are circumferentially spaced and protruded on the outer peripheral surface of the front end of the inner core 1, and a corresponding strip groove 51 is formed on the inner wall of the inner cavity 55 of the plug interface of the connector 5. The inner end of the strip groove 51 is bent clockwise to form a lock step 52. The lock step 52 is usually made of a connected transverse groove. The inner core 1 of the waterproof cover A is inserted along the strip groove 51 through the strip lock 11 and then rotated to lock with the lock step 52.

[0034] In this embodiment, there are four strip-shaped locking buckles 11 evenly spaced apart, and correspondingly, there are four strip-shaped grooves 51 in the plug-in interface of the connector 5 .

[0035] During installation, if Figure 6 As shown, align the inner core 1 of the waterproof cover A with the plug port of the connector 5 and insert it, align the strip lock buckle 11 with the strip groove 51, and after inserting it into place, rotate it clockwise for a certain angle, and the strip lock buckle 11 will abut against the lock buckle step 52 to lock it.

[0036] Example 2

[0037] like Figure 7 , 8As shown in Figure 9, a waterproof cover structure of a connector, the waterproof cover A includes an inner core 1 and an outer cover 2, wherein the inner core 1 is made of a hard material and the outer cover 2 is made of a soft material. The difference from Example 1 is that the locking structure of this embodiment adopts a glass bead type lock, specifically: a blind hole 16 is opened in the middle of the outer circumferential surface of the inner core 1, a steel ball 6 is installed in the blind hole 16, a corresponding locking groove 54 is formed on the inner wall of the inner cavity 55 of the plug interface of the connector 5, and the lower end of the steel ball 6 in the blind hole is supported by a spring 60, so that the steel ball 6 has a tendency to always pop outward and lock with the locking groove 54.

[0038] The blind hole 16 is opened at a position close to the front end of the outer cover 2, and the front end of the plug interface is a conical surface 56. The outer periphery of the front end surface of the outer cover 2 is formed with a trumpet-shaped extension portion 22 that cooperates with the conical surface 56 of the plug interface. A shell 61 is fixed in the blind hole of the outer cover 2, and the steel ball 6 and the spring 60 are arranged in the shell 61. When the inner core 1 is inserted into place and the steel ball 6 is locked with the locking groove 54, the extension portion 22 of the outer cover 2 is just sleeved on the outside of the plug interface and sealed.

[0039] The rest is similar to Example 1.

[0040] Example 3

[0041] like Fig.10 , 11 As shown in Figure 12, a connector waterproof cover structure, the waterproof cover A is a structure made of hard material covered with soft material, the waterproof cover A includes an inner core 1 and an outer cover 2, wherein the inner core 1 is made of hard material, and the outer cover 2 is made of soft material. The difference from Example 1 is that the locking structure of this embodiment adopts a lock spring type lock, specifically: a lock spring 7 is provided in the plug-in end of the connector 5, and a lock buckle 71 is convexly provided on the lock spring 7. The front end of the inner core 1 is hollow, and a lock hole 12 corresponding to the lock buckle 71 is opened on the side. After the inner core 7 is inserted, the lock buckle is just stuck in the lock hole to lock the waterproof cover A and the connector 5.

[0042] The rest is similar to Example 1.

[0043] Example 4

[0044] like Fig.13As shown, a connector waterproof cover structure is provided. When the connector 5 has two plug-in ends, there are two protective covers A. The two protective covers A are connected to the same protective pad through their respective connecting pieces 3 to form an integral piece. The two protective covers A are plugged and locked with the corresponding plug-in ends of the connector 5 by means of a rotating lock. The inner cores 1 of the two protective covers A are different. One of them is the same as Example 1. A plurality of strip locks 11 are convexly provided at an interval on the outer peripheral surface of the front end of the inner core 1. A corresponding strip groove 51 is formed on the inner wall of the inner cavity 55 of the plug-in end of the connector 5. The inner end of the strip groove 51 is bent to form a lock step 52. The inner core 1 of the waterproof cover A is inserted along the strip groove 51 through the strip lock 11 and then rotated to lock with the lock step 52.

[0045] A plurality of strip grooves 13 are formed on the inner wall of the cylindrical structure of the other inner core 1, and the bottom of the strip groove 13 is bent to form a locking groove 14. A plug-in inner core 57 is provided in the plug-in end of the connector 5, and corresponding convex strips 53 are circumferentially spaced on the outer end circumference of the plug-in inner core 57. After the inner core 1 is inserted through the strip groove 13 and the convex strip 53, it is rotated and locked with the connector 5.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A waterproof cover structure of a connector, characterized in that: The waterproof cover includes an inner core and an outer cover which are connected to each other, wherein the inner core is a cylindrical structure with a reduced diameter that cooperates with the plug interface of the connector, and the outer cover is a cover that cooperates with the outer end surface of the connector. The outer cover is wrapped around the rear end of the inner core, and the inner core is provided with a locking structure that cooperates with the connector.

2. The waterproof cover structure according to claim 1, characterized in that: The locking structure on the inner core includes but is not limited to a rotary lock, a glass bead lock or a spring lock.

3. The waterproof cover structure according to claim 2, characterized in that: The rotary lock is specifically as follows: a plurality of strip locks are convexly provided at circumferential intervals on the outer circumferential surface of the front end of the inner core, a corresponding strip groove is formed on the inner wall of the plug-in interface of the connector, the inner end of the strip groove is bent clockwise to form a lock step, the inner core of the waterproof cover is inserted along the strip groove through the strip lock and then rotated clockwise to lock with the lock step; or a plurality of strip grooves are formed on the inner wall of the cylindrical structure of the inner core, the bottom of the strip groove is bent to form a lock groove, a plug-in inner core is provided in the plug-in end of the connector, corresponding convex strips are circumferentially provided on the outer end circumferential surface of the plug-in inner core, the inner core of the waterproof cover is inserted through the strip groove and the convex strip and then rotated to lock with the connector.

4. The waterproof cover structure according to claim 3, characterized in that: There are four strip-shaped lock buckles evenly spaced, and correspondingly, there are four strip-shaped grooves in the plug interface of the connector.

5. The waterproof cover structure according to claim 2, characterized in that: The glass bead lock is specifically as follows: a blind hole is opened in the middle of the outer circumferential surface of the inner core, a steel ball is installed in the blind hole, a corresponding lock groove is formed on the inner wall of the connector plug interface, and the lower end of the steel ball in the blind hole is supported by a spring, so that the steel ball has a tendency to always pop outward and lock with the lock groove.

6. The waterproof cover structure according to claim 5, characterized in that: The blind hole is opened at a position close to the front end of the outer cover, the front end of the plug interface is conical, and the outer periphery of the front end surface of the outer cover is formed with a trumpet-shaped extension portion that matches the conical surface of the plug interface. An outer shell is fixed in the blind hole of the outer cover, and a steel ball and a spring are arranged in the outer shell. When the inner core is inserted into place and the steel ball is locked with the locking groove, the extension portion of the outer cover is just sleeved on the outside of the plug interface for sealing.

7. The waterproof cover structure according to claim 2, characterized in that: The lock spring type lock is specifically as follows: the front end of the inner core is hollow, a lock hole is provided on the side, a lock spring is provided in the plug-in interface of the connector, a lock buckle that cooperates with the lock hole is convexly provided on the lock spring, and after the inner core is inserted, the lock buckle is just stuck in the lock hole to lock the waterproof cover and the connector.

8. The waterproof cover structure according to any one of claims 1 to 7, characterized in that: The inner core is made of hard material, the outer cover is made of soft material, the outer side wall of the outer cover is connected with a protective pad via a connecting piece, and the outer cover, the connecting piece and the protective pad are an integrated part.

9. The waterproof cover structure according to claim 8, characterized in that: When the connector has two plug-in interfaces, there are two protective covers, and the two protective covers are connected to the same protective pad through respective connecting pieces to form an integral part.

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