CN218958203U - Simple and reliable waterproof joint and lighting device - Google Patents

Abstract

The utility model discloses a lighting device and a simple and reliable waterproof joint, wherein the waterproof joint comprises a first joint and a second joint which are matched through threads, a first cap detachably covered on the free end of the first joint, a second cap detachably covered on the free end of the second joint, a first sealing ring and a second sealing ring; the first cap and the first connector are respectively provided with a through hole for the first cable to pass through, the second cap and the second connector are respectively provided with a through hole for the second cable to pass through, and the first connector and/or the second connector are internally provided with an accommodating space for accommodating the connection part of the first cable and the second cable; the first sealing ring is sealed between the first cap, the first connector and the first cable, and the second sealing ring is sealed between the second cap, the second connector and the second cable. According to the utility model, in the process of screwing the first connector and the second connector, each cable cannot rotate along with the connector where the cable is located at the same time, so that the cable is prevented from being twisted, and the waterproof performance and the electrical connection performance of the cable are both considered.

Description

Simple and reliable waterproof joint and lighting device

Technical Field

The utility model relates to the technical field of illumination, in particular to a simple and reliable waterproof connector and an illumination device.

Background

In conventional electrical devices, such as lamps, power supplies, control boxes, etc., are usually electrically connected and signal connected to the lamps through cables, and when two electrical structural members disposed at intervals need to be connected, an adapter is required to connect two adjacent cables.

In order to ensure the waterproof performance of two adjacent sections of cables after connection, generally, each section of cable is fixed on one connector through glue, a sealing ring and the like respectively and extends into the corresponding connector, the two connectors are formed into male connectors and female connectors which are connected with each other through internal threads and external threads, the parts of the two sections of cables extending into the connectors are connected, and then the male connectors and the female connectors are screwed tightly, so that the waterproof connection of the two sections of cables can be realized. However, during the process of rotating the two connectors, the cable connection portions between the connectors are also entangled and twisted, which easily causes the cable connection portions to fall off and fail.

Therefore, it is necessary to provide a waterproof joint which can ensure both waterproof performance and electric connection performance.

Disclosure of Invention

In view of the defects existing in the prior art, the utility model provides the waterproof connector which can ensure waterproof performance and also has electrical connection performance.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a simple and reliable waterproof joint comprises a first joint and a second joint which are in threaded fit, a first cap detachably covered on the free end of the first joint, a second cap detachably covered on the free end of the second joint, a first sealing ring and a second sealing ring;

the first cap and the first connector are respectively provided with a through hole for a first cable to pass through, the second cap and the second connector are respectively provided with a through hole for a second cable to pass through, and the first connector and/or the second connector are internally provided with an accommodating space for accommodating the connection part of the first cable and the second cable;

the first sealing ring is sealed between the first cap, the first connector and the first cable, and the second sealing ring is sealed between the second cap, the second connector and the second cable.

As one embodiment, the first cap is screwed to the first joint, and the second cap is screwed to the second joint.

As one implementation mode, a first threading hole penetrating through the first sealing ring in the axial direction is formed in the first sealing ring, and a second threading hole penetrating through the second sealing ring in the axial direction is formed in the second sealing ring; the first sealing ring and the second sealing ring are respectively elastically compressed in the free end of the first joint and the free end of the second joint.

As one embodiment, a plurality of gap grooves are formed in the circumferential direction of the first joint free end and the second joint free end at intervals, so that radial deformation of the first joint free end and the second joint free end is provided.

As one implementation mode, the first joint comprises an annular retainer ring, a first thread and a second thread which are respectively arranged at two axial ends of the retainer ring, the first cap is in threaded fit with the first thread, and the second joint is in threaded fit with the second thread.

As one embodiment, at least one of the first seal ring and the second seal ring is a silicone ring, a rubber ring, or a foam ring.

As one embodiment, the number of the first threading holes in the first sealing ring is smaller than the number of the second threading holes in the second sealing ring, and each of the first threading holes and the second threading holes is used for threading one cable.

As one implementation mode, the second thread is an external thread, and a sealing ring is clamped between the retainer ring and the second joint.

As one embodiment, at least one of the first joint and the second joint comprises a plurality of sections of sub joints which are sequentially connected in a threaded manner.

Another object of the present utility model is to provide a lighting device comprising a lamp cap, a cable connecting said lamp cap, and any one of the above simple and reliable waterproof joints, said cable comprising a first cable and a second cable.

The first connector and the second connector at two ends of the waterproof connector are respectively provided with a first cover cap and a second cover cap, and when a first cable sequentially passes through the first cover cap and the first connector from one end, the first cable is connected with a second cable sequentially passes through the second cover cap and the second connector from the other end in a space between the first connector and the second connector; before the first joint and the second joint are screwed, the first cap and the second cap at the two ends are not covered, or only one of the caps is covered, so that in the process of screwing the first joint and the second joint, at least one of the first cable and the second cable cannot rotate along with the joint where the first cable and the second cable are positioned, and relative winding and twisting of the first cable and the second cable can be avoided; after the first connector and the second connector are in tight fit, all the caps at the two ends are covered, so that the cables at the two ends are respectively sealed and fixed, the waterproof performance of the cables is guaranteed, and the electrical connection performance of the cables can be considered.

Drawings

Fig. 1 is a schematic structural view of a waterproof joint according to an embodiment of the present utility model;

fig. 2 is an exploded view of a waterproof joint according to an embodiment of the present utility model;

FIG. 3 is another exploded view of a waterproof joint according to an embodiment of the present utility model;

fig. 4 is a cross-sectional view of a waterproof joint according to an embodiment of the present utility model;

fig. 5 and 6 are schematic structural views of two different second seal rings according to an embodiment of the present utility model.

Detailed Description

In the present utility model, the terms "disposed," "provided," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 and 2, the present utility model provides a simple and reliable waterproof joint, which comprises a first joint 11 and a second joint 21 in threaded fit, a first cap 12 detachably covering the free end of the first joint 11, a second cap 22 detachably covering the free end of the second joint 21, and a first sealing ring 13 and a second sealing ring 23. Wherein, through holes for the first cable to pass through are respectively arranged on the first cap 12 and the first connector 11, through holes for the second cable to pass through are respectively arranged on the second cap 22 and the second connector 21, and accommodating spaces for accommodating the connection parts of the first cable and the second cable are respectively arranged inside the first connector 11 and/or the second connector 21. The first sealing ring 13 is sealed between the first cap 12, the first joint 11 and the first cable, and the second sealing ring 23 is sealed between the second cap 22, the second joint 21 and the second cable.

In this embodiment, since the first and second connectors at two ends of the waterproof connector are respectively provided with the first and second caps, when the first cable sequentially passes through the first cap and the first connector from one end, the first cable is connected with the second cable sequentially passes through the second cap and the second connector from the other end in the space between the first connector and the second connector. Before the first joint and the second joint are screwed, the first cap and the second cap at the two ends can be not covered (or not screwed) or only one of the caps can be covered, so that in the process of screwing the first joint and the second joint, at least one of the first cable and the second cable can not rotate along with the joint where the first cable and the second cable are positioned, and relative winding and twisting of the first cable and the second cable can be avoided; after the first connector and the second connector are in tight fit, all caps at two ends are covered (screwed), so that cables at two ends are respectively sealed and fixed, the waterproof performance of the cables is guaranteed, and the electrical connection performance of the cables can be considered. For example, only one of the caps and the connector can be relatively fixed before the first connector and the second connector are screwed, so that the cable passing through the cap is fixed, and the other cap is temporarily not fixed on the connector, so that the cable passing through the other cap is kept in a free movable state and is not pressed to rotate along with the connector, and the two cables which are in butt joint can be prevented from generating relative rotation; the two caps can be covered after the two connectors are screwed, so that the two cables can move freely and the same effect of no twisting can be achieved.

Fig. 2 of the present embodiment shows that the first connector 11 and the second connector 21 are hollow, and the two connectors cooperate to form an accommodating space for accommodating a connection portion of the first cable and the second cable, for example, the first connector 11 has an external thread, the second connector 21 has an internal thread, and the first connector 11 partially extends into the second connector 21, and the two connectors are in threaded engagement. It will be appreciated that in other embodiments, the receiving space may be formed only in one of the first connector 11 and the second connector 21, for example, the interior space of one of the connectors is only for the cable to pass through, and the connection portion of the cable extends out of the connector and is located in the interior space of the other connector together with the connection portion of the cable.

In one embodiment, the first cap 12 is threadably coupled to the first joint 11 and the second cap 22 is threadably coupled to the second joint 21. For example, fig. 2 and 3 show a case where the first cap 12 and the second cap 22 are internally provided with female threads, and the first joint 11 and the second joint 21 are externally provided with male threads.

In one embodiment, the first seal ring 13 is internally provided with a first threading hole 130 penetrating through the first seal ring in the axial direction, the second seal ring 23 is internally provided with a second threading hole 230 penetrating through the second seal ring in the axial direction, the first threading hole 130 can be used for inserting a first cable inserted from the left end shown in fig. 2, the second threading hole 230 can be used for inserting a second cable inserted from the right end shown in fig. 2, and the first seal ring 13 and the second seal ring 23 are respectively elastically compressed in the free ends of the first joint 11 and the second joint 21, so that the first cable and the second cable at two ends are respectively sealed and tightly fixed at the free ends of the corresponding first joint 11 and the free end of the second joint 21, and the fixation and waterproof sealing of two ends of the waterproof joint are realized.

In order to realize that the two ends of the waterproof joint can seal and fix cables with different diameter specifications, a plurality of gap grooves C which are arranged at intervals are respectively formed in the circumferential directions of the free ends of the first joint 11 and the free ends of the second joint 21 so as to provide radial deformation of the free ends of the first joint 11 and the free ends of the second joint 21. As such, the notch groove C is configured to narrow under radial compression of the respective first and second caps 12, 22 to press the through-hole walls of the respective first and second seal rings 13, 23 against the respective cable surfaces. That is, in the initial state where the first cap 12 and the second cap 22 are not covered, the notch grooves C of the free ends of the first connector 11 and the second connector 21 are in a natural open state, the outer diameters of the free ends of the first connector 11 and the second connector 21 are the largest, the first sealing ring 13 is positioned in the free end of the first connector 11 and is provided with a first cable in a penetrating manner, and the second sealing ring 23 is positioned in the free end of the second connector 21 and is provided with a second cable in a penetrating manner; when the first cap 12 is covered, the inner wall of the first cap 12 compresses the free end of the first connector 11, and in the process of continuously screwing the first cap 12, the notch of the notch groove C gradually becomes smaller, and the first sealing ring 13 is correspondingly compressed, so that the first cable in the first sealing ring is further compressed; similarly, when the second cap 22 is covered, the inner wall of the second cap 22 presses the free end of the second connector 21, and the notch of the notch groove C becomes smaller gradually during the process of continuing to screw the second cap 22, so that the second sealing ring 23 is compressed correspondingly, thereby further pressing the second cable therein. In this way, the first threading hole 130 of the first seal ring 13 and the second threading hole 230 of the second seal ring 23 are variable in size, so that clamping and sealing of cables of different diameters can be achieved.

As shown in fig. 2, the first joint 11 includes an annular retainer 111, first threads 112 and second threads 113 provided at both axial ends of the retainer 111, respectively, the first cap 12 is screwed with the first threads 112, and the second joint 21 is screwed with the second threads 113. Illustratively, the first thread 112 is located between the notch groove C and the retainer 111, and the first thread 112 and the second thread 113 may be external threads, and the first cap 12 and the second joint 21 may be internal threads, respectively. The first seal ring 13 may be located entirely inside the notch groove C or may extend partially inside the first thread 112.

In some embodiments, the first sealing ring 13 and the second sealing ring 23 may be elastic sealing members such as a silica gel ring, a rubber ring or a foam ring, so as to achieve a reliable waterproof sealing effect.

In some embodiments, the number of the first threading holes 130 in the first sealing ring 13 is smaller than the number of the second threading holes 230 in the second sealing ring 23, and each of the first and second threading holes 130, 230 is used for threading one cable. For example, fig. 2 shows that only one first threading hole 130 is provided in the first sealing ring 13, and 3 second threading holes 230 are provided in the second sealing ring 23, so that one first cable can be threaded from the first cap 12 on the left side, and then three second cables threaded on the right side are connected in the accommodating space of the waterproof connector, thereby realizing connection between one cable and three cables.

It will be appreciated that in other embodiments, the number of the first threading holes 130 in the first seal ring 13 may be other numbers, for example, 2 or more, and the number of the second threading holes 230 in the second seal ring 23 may be adjusted as required, so that the number of the second threading holes 230 in the second seal ring 23 may be greater than the number of the first threading holes 130 in the first seal ring 13. Fig. 5 and 6 show the cases where the number of the second threading holes 230 of the second seal ring 23 is 2 and 3, respectively.

In one embodiment, as shown in fig. 4, the second thread 113 is an external thread, and the seal ring 30 is interposed between the retainer ring 111 and the second joint 21. The sealing ring 30 can further enhance the waterproof performance between the second joint 21 and the first joint 11. In other embodiments, a seal ring for enhancing the waterproof effect may be provided between the first joint 11 and the end face of the first cap 12, and between the second joint 21 and the end face of the second cap 22.

The present embodiment shows a case where the first joint 11 and the second joint 21 are both integrally structured. It will be appreciated that in other embodiments at least one of the first joint 11, the second joint 21 may comprise a plurality of sub-joints threaded in sequence.

In addition, the waterproof connector provided by the embodiment of the utility model can be applied to a lighting device, the lighting device mainly comprises a lamp cap, a cable connected with the lamp cap and the waterproof connector, the cable can comprise a first cable and a second cable, and the first cable and the second cable are connected through the waterproof connector, so that the total length of the cable is prolonged, and different cable connection scenes are adapted. By adopting the waterproof connector to connect different cables, miniaturization of the cable connector can be ensured, and waterproof performance and fixing reliability of the cable connection part can be ensured.

The foregoing is merely exemplary of the application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the application and are intended to be comprehended within the scope of the application.

Claims (10)

1. A simple and reliable waterproof joint is characterized by comprising a first joint (11) and a second joint (21) which are in threaded fit, a first cap (12) which is detachably covered on the free end of the first joint (11), a second cap (22) which is detachably covered on the free end of the second joint (21), a first sealing ring (13) and a second sealing ring (23);

the first cap (12) and the first connector (11) are respectively provided with a through hole for a first cable to pass through, the second cap (22) and the second connector (21) are respectively provided with a through hole for a second cable to pass through, and the first connector (11) and/or the second connector (21) are internally provided with an accommodating space for accommodating the connection part of the first cable and the second cable;

the first sealing ring (13) is sealed between the first cap (12), the first connector (11) and the first cable, and the second sealing ring (23) is sealed between the second cap (22), the second connector (21) and the second cable.

2. The simple and reliable watertight joint as claimed in claim 1, characterized in that the first cap (12) is screwed with the first joint (11) and the second cap (22) is screwed with the second joint (21).

3. The simple and reliable waterproof joint according to claim 2, characterized in that the first sealing ring (13) is internally provided with a first threading hole (130) penetrating through the first sealing ring in the axial direction, and the second sealing ring (23) is internally provided with a second threading hole (230) penetrating through the second sealing ring in the axial direction; the first sealing ring (13) and the second sealing ring (23) are respectively elastically compressed in the free end of the first joint (11) and the free end of the second joint (21).

4. A simple and reliable waterproof joint according to claim 3, characterized in that the free ends of the first joint (11) and the second joint (21) are provided with a plurality of spaced apart notch grooves (C) in the circumferential direction, respectively, to provide radial deformation of the free ends of the first joint (11) and the second joint (21).

5. The simple and reliable waterproof joint according to claim 2, wherein the first joint (11) comprises an annular retainer ring (111), first threads (112) and second threads (113) respectively arranged at two axial ends of the retainer ring (111), the first cap (12) is in threaded engagement with the first threads (112), and the second joint (21) is in threaded engagement with the second threads (113).

6. A simple and reliable watertight joint as claimed in claim 1, characterized in that at least one of the first sealing ring (13) and the second sealing ring (23) is a silicone ring, a rubber ring or a foam ring.

7. A simple and reliable watertight joint as claimed in claim 3, characterized in that the number of said first threading holes (130) in said first sealing ring (13) is smaller than the number of said second threading holes (230) in said second sealing ring (23), each of said first threading holes (130), said second threading holes (230) being for threading one cable.

8. The simple and reliable waterproof joint according to claim 5, characterized in that the second thread (113) is an external thread, and a sealing ring (30) is sandwiched between the retainer ring (111) and the second joint (21).

9. The simple and reliable waterproof joint according to any one of claims 1 to 8, wherein at least one of the first joint (11) and the second joint (21) comprises a plurality of sub-joints which are sequentially screwed.

10. A lighting device comprising a lamp cap, a cable for connecting said lamp cap and a simple and reliable waterproof joint according to any one of claims 1 to 9, said cable comprising a first cable and a second cable.

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