Plug and waterproof connector

Abstract

A plug and a waterproof connector. The plug comprises an inner core assembly extending axially in a front-rear direction, a sleeve fitted over the inner core assembly, and a sealing rubber ring mounted at the tail end of the sleeve and used for sealing a cable in the inner core assembly. A tail locking member is connected to the tail portion of the sleeve, a connecting cap capable of locking and adapting to a socket is provided at the front end portion of the sleeve, and the sealing rubber ring achieves reliable sealing under the action of the sleeve and the tail locking member. In the plug, the tail locking member is directly connected to the sleeve without using an elastic claw structure, which not only solves the problem of impossible normal assembly of a rubber sleeve caused by deformation due to repeated compression of an elastic claw, but also reduces the length of a connector, thereby satisfying the use requirements in small space environments.

Description

Plug and waterproof connector TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially is related to a plug and waterproof connector. BACKGROUND

[0002] At present, the waterproof connector that can be installed on site outdoors is often in the form of connector + tail accessory, please refer to figure 1, sealing ring I 2 after splicing and socket rubber pad 1 realize the direct sealing of plug and socket, and sealing ring II 4 realizes the sealing between tail accessory and inner shell 3, and the optical cable is sealed using tail accessory (gran head).

[0003] The above connector has the following defects: (1), the tail accessory contains elastic claw 5, for compressing rubber sleeve 6 to realize sealing, the specific structure of elastic claw 5 is shown in figure 2, the common material of elastic claw 5 is nylon or other thermoplastic material, and plastic deformation is prone to occur after repeated compression, so that rubber sleeve 6 cannot be normally assembled, and the effective installation times are low;(2), the tail accessory containing elastic claw 5 makes the length of the connector longer, and the connector cannot be used in some small spaces.

[0004] Utility model content

[0005] Therefore, the utility model discloses a plug and waterproof connector, the plug does not need to use elastic claw structure, directly connects tail locking member with sleeve, not only solves the problem that rubber sleeve cannot be normally assembled due to repeated compression deformation of elastic claw, but also shortens the length of the connector, and meets the use demand of small space environment.

[0006] The utility model discloses a plug and waterproof connector, the plug does not need to use elastic claw structure, directly connects tail locking member with sleeve, not only solves the problem that rubber sleeve cannot be normally assembled due to repeated compression deformation of elastic claw, but also shortens the length of the connector, and meets the use demand of small space environment.

[0007] On the one hand, the utility model provides a kind of plug, including the inner core component of axial along front-back direction extension, sleeve, which is sleeved in the outer portion of inner core component, and sealing rubber ring for sealing cable in inner core component, which is installed in the end of sleeve, the tail locking member is connected to the tail of sleeve, the front end of sleeve is equipped with the connecting cap that can lock the adapter socket, sealing rubber ring realizes reliable sealing under the action of sleeve and tail locking member.

[0008] Further, the tail locking member and the sealing rubber ring are further provided with a compression ring, which is used to assist the compression of the sealing rubber ring and prevent the sealing rubber ring from rotating with the tail locking member.

[0009] Further, the compression ring is pre-fixed inside the tail locking member.

[0010] Further, the sealing rubber ring comprises a front cylinder section with a smaller diameter and a rear cylinder section with a larger diameter, and a step surface formed at the joint of the front and rear cylinder sections can stop cooperating with the step structure at the tail end of the sleeve;

[0011] Alternatively, the front end surface of the sealing rubber ring can stop cooperating with the step structure at the tail end of the sleeve.

[0012] Further, the tail end of the sealing rubber ring is externally tapered from large to small, and the tapered structure is externally fitted with a compression ring.

[0013] Further, one side of the sealing rubber ring has an opening penetrating along the axial direction, so that the sealing rubber ring can be radially sleeved on the cable.

[0014] Further, the outer peripheral wall of the sleeve is provided with a strong mounting table for axially limiting the cap.

[0015] Further, the tail end of the cap extends to the front end of the tail locking member.

[0016] Further, the cap and the tail locking member are integrally formed.

[0017] In another aspect, the utility model provides a waterproof connector, which comprises a socket and the plug as described above; the socket and the plug are connected through clamping or screwing; the joint of the plug and the cap is provided with a rubber pad, and the joint of the plug and the sleeve is provided with a sealing rubber ring. Beneficial effects:

[0018] As described above, the plug and the waterproof connector have the following beneficial effects:

[0019] (1) The utility model uses a tail locking member and a compression ring to compress and seal the sealing rubber ring, the compression ring is compressed to seal the sealing rubber ring by the pressure generated by the tail locking member, the compression ring serves to isolate the tail locking member and the sealing rubber ring, and prevents the sealing rubber ring from rotating with the cable; when the cable does not need to be prevented from rotating, the compression ring can be removed, and the sealing rubber ring is directly compressed by the tail locking member. At this time, the overall length of the connector is smaller, and the elastic claw in the conventional connector is not needed, and the connector can be repeatedly disassembled and assembled.

[0020] (2) The length of the cap is designed such that the front end of the cap can cooperate with the sleeve to lock the adapter socket (i.e., the front end has a locking function), and the rear end can extend to the front end of the tail locking member; only when the tail locking member is disassembled, the cap has space to be unlocked, and even if the operator accidentally touches the cap, the cap can be prevented from being unlocked.

[0021] (3), the utility model discloses the integral moulding of cap and tail locking piece, can realize locking and tail sealing function simultaneously, not only strengthen the waterproof effect of plug, and the integral moulding structure avoids the problem of cap and tail locking piece separate installation, reduces the on-site installation difficulty.

[0022] (4), the utility model discloses before the plug assembly, pre-fixing the compression ring in the tail locking piece inside, avoids the problem of compression ring falling repeatedly installs, realizes the minimum of the field installation spare part of needing cable anti -rotation environment.

[0023] (5), the assembly end of sleeve and sealing rubber ring is stepped in the utility model, and the step is used for with the front end face of sealing rubber ring stop cooperation, to carry out axial location to sealing rubber ring.

[0024] The utility model will be further specifically and in detail explained below combining with the embodiment drawing and specific embodiment. DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawing needed to be used in the embodiment or prior art will be simply introduced below, and obviously, the drawing in the following description is only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without paying creative labor for the ordinary skilled in the art.

[0026] Fig. 1 is the structural schematic diagram of the connector in prior art.

[0027] Fig. 2 is the structural schematic diagram of the snap claw in Fig. 1.

[0028] Fig. 3 is the structural schematic diagram of the plug in embodiment 1 in the utility model.

[0029] Fig. 4 is the structural schematic diagram of the plug in embodiment 2 in the utility model.

[0030] Fig. 5 is the structural schematic diagram of the plug in embodiment 3 in the utility model.

[0031] Fig. 6 is the structural schematic diagram of the connector in embodiment 4 in the utility model.

[0032] Fig. 7 is the explosion view of the connector in the utility model.

[0033] Fig. 8 is the state diagram before installing the connector.

[0034] Fig. 9 is the structural diagram after disassembling the connector.

[0035] Fig. 10 is the structural diagram of the connector assembled into semi-finished product.

[0036] Fig. 1-2, 1', socket rubber pad, 2', sealing ring I, 3', inner shell, 4', sealing ring II, 5', elastic claw, 6', rubber sleeve;

[0037] Fig. 3-10, 1, cap, 2, sleeve, 201, strong installation platform, 3, tail nut, 4, sealing rubber ring, 401, opening, 5, compression ring, 6, inner core assembly, 7, outer shell, 8, socket. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model will be further described in detail below in combination with the drawings, namely the embodiment. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0039] In the description of the utility model, the relative position relationship of the orientation words such as "upper", "lower", "left", "right", "front", "back" mentioned in the text is only used to show the relative position relationship relative to the drawing, when the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0040] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] The utility model provides a kind of plug and waterproof connector, waterproof connector includes the plug and socket 8 that can be mutually matched, the plug and socket 8 can be clamped, it can also be threaded connection between the socket 8 and plug, plug and socket 8 cooperation realizes signal transmission function.The specific structure of plug is described in detail as follows.

[0042] The plug includes the inner core assembly 6 extending in the front-back direction in the axial direction, the sleeve 2 being sleeved on the outer portion of the inner core assembly 6, and the sealing rubber ring 4 being installed at the end of the sleeve 2 for sealing the cable in the inner core assembly 6, the outer portion of the sleeve 2 is provided with the cap 1 at the front end, and the tail locking member is connected at the rear end, in the embodiment, the tail locking member is the tail nut 3, the cap 1 is provided with the shell capable of locking the socket 8 at the front end portion, and the sealing rubber ring 4 is reliably sealed under the action of the sleeve 2 and the tail nut 3.

[0043] The sealing rubber ring 4 comprises a front cylinder section with a smaller diameter and a rear cylinder section with a larger diameter, and a step surface formed at the joint of the front and rear cylinder sections can be stopped by the step structure at the tail end of the sleeve 2.

[0044] As a preferred scheme of the utility model, the outer side of the tail end of the rear cylinder section is in a taper structure with a larger front and a smaller rear, and the taper structure of the sealing rubber ring 4 is externally fitted with a compression ring 5, which is used for assisting in compressing the sealing rubber ring 4 and preventing the sealing rubber ring 4 from rotating with the tail nut 3.

[0045] It should be noted that when the plug is assembled, the compression ring 5 can be pre-fixed inside the tail nut 3 to avoid the problem of repeated installation due to the falling of the compression ring 5, and the number of loose parts for on-site installation in the cable anti-rotation environment is minimized.

[0046] Preferably, the cap 1 and the tail nut 3 can be integrally formed as an integral part, which is referred to as an outer shell 7 for the convenience of description, and the outer shell 7 can realize the locking and tail sealing functions at the same time, which not only enhances the waterproof effect of the plug, but also avoids the problem of separate installation of the cap 1 and the tail nut 3, and reduces the difficulty of on-site installation.

[0047] As a preferred scheme of the utility model, the compression ring 5 can be pre-fixed at the tail end of the tail nut 3 or the outer shell 7 before the connector is assembled, which can avoid the problem of repeated installation due to the falling of the compression ring 5, minimize the number of loose parts for on-site installation in the cable anti-rotation environment, and reduce the difficulty of on-site installation.

[0048] Preferably, the connection between the plug and the cap 1 of the utility model is provided with a rubber pad, and the connection between the plug and the sleeve 2 is provided with a sealing ring to ensure the waterproof effect of the connector.

[0049] The technical scheme of the utility model will be described in detail below in combination with specific embodiments.

[0050] Embodiment 1

[0051] The plug of the embodiment is disclosed, please refer to Fig. 3, which comprises an inner core assembly 6 extending axially along the front-rear direction, a sleeve 2 sleeved outside the inner core assembly 6, and a sealing rubber ring 4 mounted at the end of the sleeve 2 for sealing the cable in the inner core assembly 6. The outside of the sleeve 2 is sequentially provided with a cap 1 and a tail nut 3 in a front-to-rear direction. The cap 1 cooperates with the front end of the sleeve 2 to lock the adapter socket 8. The tail section of the sealing rubber ring 4 is adapted to be sleeved with a compression ring 5. The sealing rubber ring 4 is compressed and sealed by the tail nut 3 and the compression ring 5. The tail nut 3 is threadedly connected with the sleeve 2. The compression ring 5 is compressed and sealed by the pressure generated by the thread travel of the tail nut 3. The end of the sleeve 2 is provided with a stepped structure to axially position the sealing rubber ring 4, thereby achieving reliable sealing. The sleeve 2 is provided with a strong mounting table 201 outside to axially position the cap 1, preventing the cap 1 from falling off after being unlocked, and avoiding repeated installation. At this time, the overall length of the connector is reduced.

[0052] Embodiment 2

[0053] The plug designed in Embodiment 1 has a gap between the tail nut 3 and the cap 1. The axial positioning of the cap 1 is achieved by the strong mounting table 201 provided outside the sleeve 2. If the operator's palm is relatively large, it may cause a false touch problem, i.e., it is difficult to accurately distinguish between operating the cap 1 and the tail nut 3, and the on-site installation is difficult. At the same time, in the actual operation process, the tail nut 3 needs to be unlocked first to release the cable, and then the cap 1 needs to be unlocked to remove the connector from the cable. If the worker is not familiar with it, it may directly unlock the cap 1, which may cause unlocking failure. Based on this, the cap 1 is designed to be lengthened in the embodiment, please refer to Fig. 4. The front end thereof can cooperate with the sleeve 2 to lock the adapter socket 8 (i.e., the front end has a locking function), and the rear end can extend to the front end of the tail nut 3. Only when the tail nut 3 is detached, the cap 1 has a moving space in the axial direction of the connector to be unlocked. Even if the operator mistakenly touches the cap 1, the unlocking of the cap 1 can be avoided.

[0054] Embodiment 3

[0055] Please refer to Fig. 5. In Embodiment 3, the cap 1 and the tail nut 3 in Embodiment 2 are integrally formed to obtain an integral part, i.e., an outer shell 7. The outer shell 7 can simultaneously achieve the functions of locking the front end and sealing the tail end, avoiding the problem of separate operation of the cap 1 and the tail nut 3. Moreover, the outer shell 7 can wrap the entire connector, improving the waterproof effect of the connector.

[0056] Embodiment 4

[0057] Please refer to Fig. 6 and Fig. 7, the connector comprises the socket 8 and the plug in embodiment 3, the plug and the socket 8 cooperate to realize the signal transmission function. The socket 8 and the plug are in the bayonet connection structure. The connection between the plug and the cap 1 is provided with the rubber pad, and the connection between the plug and the sleeve 2 is provided with the sealing ring, so as to ensure the waterproof effect of the connector after the plug and the socket 8 are connected.

[0058] The installation method of the connector is as follows:

[0059] S1, prepare one set of waterproof connector and inner core assembly on site, please refer to Fig. 8;

[0060] S2, disassemble the connector, remove the dustproof cap, and take out the sealing rubber ring 4, the disassembly diagram of the connector is shown in Fig. 9;

[0061] S3, assemble the inner core assembly 6, the sleeve 2, the outer shell 7, the sealing rubber ring 2 (and the compression ring 5, if any) into the semi-finished product shown in Fig. 10 according to the following steps;

[0062] S31, the sleeve 2 is sleeved on the inner core assembly 6,

[0063] S32, the outer shell 7 is installed on the cable of the inner core assembly 6, if the connector also comprises the compression ring 5, the compression ring 5 and the outer shell 7 can be installed on the cable of the inner core assembly 6 in sequence, or the compression ring 5 can be pre-fixed on the tail of the outer shell 7, and the pre-fixed product is directly installed on the inner core assembly 6;

[0064] S33, the sealing rubber ring 4 is installed on the cable of the inner core assembly 6;

[0065] It should be noted that the order of steps S31, S32 and S33 is not fixed and can be selected according to the actual situation.

[0066] S4, the LC plug on the inner core assembly 6 is connected with the socket, the front end of the sleeve 2 is provided with a groove, the plug end of the socket shell is provided with a mounting block matched with the groove, the sleeve 2 is pushed to make the groove and the mounting block mounted in place, then the sealing rubber ring 4 is pushed to the step structure stop cooperation with the tail end of the sleeve 2, finally the outer shell 7 is tightened (the outer shell 7 can be screwed with the socket shell, or a locking groove is arranged on the inner wall of the front end of the outer shell 7, and a corresponding clamping nail is arranged on the mounting block, the outer shell 7 is screwed to make the clamping nail and the locking groove mounted in place), so as to achieve the state that the sleeve 2 and the sealing rubber ring 4 are tightly matched and the compression sealing is realized by the outer shell 7.

[0067] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between each embodiment can be referred to each other.

[0068] The plug and the waterproof connector provided by the utility model are introduced in detail, and the principle and the specific implementation mode of the utility model are described by applying specific examples, and the above-mentioned examples are only used to help understand the method and the core idea of the utility model. It should be pointed out that, for ordinary skilled persons in the art, any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above-mentioned examples all fall within the protection scope of the utility model.

Claims

1. A plug, characterized in that The waterproof connector comprises an inner core assembly (6) extending in the front-rear direction, a sleeve (2) sleeved on the outer portion of the inner core assembly (6), and a sealing rubber ring (4) mounted at the end of the sleeve (2) for sealing the cable in the inner core assembly (6), wherein the tail end of the sleeve (2) is connected with a tail locking member, the front end of the sleeve (2) is provided with a connecting cap (1) capable of locking a matching socket (8), and the sealing rubber ring (4) is reliably sealed under the action of the sleeve (2) and the tail locking member.

2. A plug according to claim 1, wherein A pressing ring (5) is further arranged between the tail locking member and the sealing rubber ring (4), and the pressing ring (5) is used for assisting in pressing the sealing rubber ring (4) and preventing the sealing rubber ring (4) from rotating with the tail locking member.

3. A plug according to claim 2, wherein, The pressing ring (5) is pre-fixed in the inner portion of the tail locking member.

4. A plug according to claim 2, wherein The sealing rubber ring (4) comprises a front cylinder segment with a smaller diameter and a rear cylinder segment with a larger diameter, and a step surface formed at the connecting position of the front and rear cylinder segments can be abutted with the step structure at the tail end of the sleeve (2). Alternatively, the front end surface of the sealing rubber ring (4) can be abutted with the step structure at the tail end of the sleeve (2).

5. A plug according to claim 4, wherein, The outer side of the tail end of the sealing rubber ring (4) is in a taper structure with a larger front end and a smaller rear end, and the taper structure is adapted to be sleeved with the pressing ring (5).

6. A plug according to claim 5, wherein, One side of the sealing rubber ring (4) is provided with an opening (401) penetrating along the axial direction, so that the sealing rubber ring (4) can be sleeved on the cable in the radial direction.

7. A plug according to claim 1, wherein The outer peripheral wall of the sleeve (2) is provided with a strong mounting table (201) for axially limiting the connecting cap (1).

8. The plug of claim 1, wherein, The end of the connecting cap (1) extends to the front end of the tail locking member.

9. The plug of claim 1, wherein, The connecting cap (1) and the tail locking member are integrally formed.

10. A waterproof connector, comprising a socket (8) and the plug of any one of claims 1-9. The socket (8) and the plug are connected by clamping or screwing. A rubber pad is arranged at the connecting position of the plug and the sleeve (2), and a sealing ring is arranged at the connecting position of the plug and the sleeve (2).

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