Sealing structure and lamp

Abstract

The utility model discloses a sealing structure and a lamp, and belongs to the technical field of lighting devices, the sealing structure comprises a pressing plate and an elastic sealing component, the inner wall surface of a guide hole of the pressing plate is a conical surface, the sealing component is provided with a plurality of mounting blocks, each mounting block is provided with a threading through hole for threading a cable, and the threading through hole is provided with a plurality of through holes. The hole diameters of the plurality of threading through holes are different so as to be used for being matched with cables with different outer diameters, and the pressure of the threading through holes on the cables penetrating through the threading through holes is increased along with the fact that the installation blocks gradually penetrate into the guide holes, so that the threading through holes are tightly attached to the cables, and the waterproof performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, in particular to a sealing structure and a lamp. Background Art

[0002] During the installation of lamps, cables need to be connected to the lamps. The cables can provide power to the lamps and control their working status. However, the wire diameters of current lamp cables are varied, and the wire holes of the lamps themselves cannot guarantee to match the outer diameters of various cables. In addition, the waterproofing of the existing lamp wiring is subject to the processing level of the construction party or the user. In fact, the construction party or the customer mostly simply glues the wiring at the wiring point or even does not perform waterproofing treatment. The waterproofing of the lamps is ineffective, which brings great risks to the safe use of the lamps. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a sealing structure and a lamp to solve the problem of poor waterproofing at the connection point of the current lamp.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A sealing structure comprises a pressing plate and an elastic sealing component;

[0006] The pressing plate is provided with a guide hole, and the inner wall surface of the guide hole is a conical surface;

[0007] The sealing component is provided with a plurality of mounting blocks, and the mounting blocks are provided with threading holes for threading cables, and the apertures of the plurality of threading holes are different;

[0008] The installation block is inserted into the guide hole, and the pressure of the wire threading through hole on the cable inserted therein increases as the installation block gradually penetrates into the guide hole.

[0009] Preferably, the outer side surface of the mounting block is a conical surface.

[0010] Preferably, there are a plurality of guide holes, and each mounting block corresponds to one guide hole.

[0011] Preferably, it also includes a base;

[0012] One end surface of the sealing component is attached to the pressing plate, and the other end surface of the sealing component is attached to the base;

[0013] The base is provided with a wire passing hole, and one of the wire passing through holes is coaxially arranged with the wire passing hole.

[0014] Preferably, the sealing component is provided with a clearance through hole so that the sealing component is annular, and a wiring device is provided on the base, and the wiring device is located in the clearance through hole.

[0015] Preferably, it also includes a hollow installation cylinder;

[0016] The pressing plate and the sealing component are both located in the installation tube, and the outer edge of the sealing component abuts against the inner wall surface of the installation tube.

[0017] Preferably, the inner wall surface of the mounting cylinder is provided with a plurality of rotation limiting guide rails, the outer edge of the pressure plate is provided with a first rotation limiting notch, the outer edge of the sealing component is provided with a second rotation limiting notch, and the first rotation limiting notch and the second rotation limiting notch are both clamped in the rotation limiting guide rails.

[0018] Preferably, the number of the first rotation limiting notches and the second rotation limiting notches are the same and are both provided in plurality, and each of the first rotation limiting notches corresponds to one of the second rotation limiting notches.

[0019] Preferably, the mounting block is a rotating body structure, and the outer diameters of the plurality of mounting blocks are different.

[0020] In order to solve the same technical problem, the utility model also provides a lamp, comprising the sealing structure as described above.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The inner wall surface of the guide hole of the pressure plate is a conical surface, and a plurality of mounting blocks are arranged on the sealing component. Each mounting block is provided with a threading hole for threading cables. The apertures of the plurality of threading holes are different to match cables with different outer diameters. The pressure of the threading hole on the cable passed therethrough increases as the mounting block gradually penetrates into the guide hole, so that the threading hole and the cable fit tightly, thereby improving the waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the sealing structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a pressure plate, a sealing component and a base of the sealing structure of the utility model;

[0025] Figure 3 It is an overall exploded schematic diagram of the sealing structure of the utility model;

[0026] Figure 4 It is a partial explosion schematic diagram of the sealing structure of the utility model;

[0027] Figure 5 It is a cross-sectional schematic diagram of the sealing structure of the utility model;

[0028] In the figure: 10, pressure plate; 11, guide hole; 12, first rotation-limiting notch; 13, first mounting hole; 20, sealing component; 21, mounting block; 211, threading hole; 22, clearance hole; 23, second rotation-limiting notch; 24, second mounting hole; 30, base; 31, wire hole; 32, wiring device; 33, third mounting hole; 40, mounting cylinder; 41, rotation-limiting guide rail; 50, cable. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] Example 1

[0033] Combination Figures 1 to 5 As shown, the sealing structure of the present invention is schematically shown, including a pressing plate 10 and a sealing component 20. The sealing component 20 is elastic and can be made of silicone or rubber.

[0034] like Figure 4 The pressure plate 10 is provided with a guide hole 11, and the inner wall surface of the guide hole 11 is a conical surface, that is, the generatrix of the guide hole 11 is inclined with the axis of the guide hole 11. The sealing component 20 is provided with a plurality of mounting blocks 21, and the mounting blocks 21 are provided with threading holes 211 for threading the cables 50, and the apertures of the plurality of threading holes 211 are different to adapt to cables 50 of different outer diameters.

[0035] The end with a larger aperture of the guide hole 11 of the pressure plate 10 faces the mounting block 21, and the mounting block 21 is inserted into the guide hole 11. The pressure of the wire threading hole 211 on the cable 50 inserted therein increases as the mounting block 21 gradually penetrates into the guide hole 11. Since the inner wall surface of the guide hole 11 is a conical surface, after the mounting block 21 penetrates into the guide hole 11, the outer wall surface of the mounting block 21 abuts against the inner wall surface of the guide hole 11. As the mounting block 21 is pushed into the guide hole 11, the inner wall surface of the guide hole 11 squeezes the mounting block 21 and forces the mounting block 21 to deform, which gradually increases the pressure of the wire threading hole 211 on the cable 50 inserted therein, so that the wire threading hole 211 fits tightly with the cable 50, thereby improving the waterproof performance.

[0036] Specifically, the outer side surface of the mounting block 21 is a conical surface, and when the mounting block 21 is a rotating body structure, its generatrix and the axis are arranged to be inclined with respect to each other. Based on this structure, the mounting block 21 can match the shape of the guide hole 11. When the mounting block 21 is inserted into the guide hole 11, the inner wall surface of the guide hole 11 can evenly squeeze the outer side surface of the mounting block 21, so that the squeezing force of the wire material at each location of the threading through hole 211 can be more uniform, avoiding the occurrence of a waterproof blind area.

[0037] Furthermore, combined with Figure 3 and Figure 5 As shown, the sealing structure also includes a base 30, one end surface of the sealing component 20 is attached to the pressing plate 10, and the other end surface of the sealing component 20 is attached to the base 30. A wire hole 31 is provided on the base 30, and one of the wire holes 211 is coaxially arranged with the wire hole 31. The cable 50 passes through the wire hole 31 and the wire hole 211. The base 30 is used to install the sealing component 20, the pressing plate 10 and the lamp. The pressing plate 10 is provided with a first mounting hole 13, the sealing component 20 is provided with a second mounting hole 24, and the base 30 is provided with a third mounting hole 33, wherein the third mounting hole 33 has an internal thread. Bolts can be passed through the first mounting hole 13 and the second mounting hole 24 and can be detachably connected to the third mounting hole 33 to connect the pressure plate 10 and the sealing component 20 to the base 30. The pressure plate 10 and the base 30 are respectively located at the two ends of the sealing component 20. The tightening of the bolts can drive the pressure plate 10 and the base 30 to squeeze the sealing component 20, so that the threading hole 211 fits tightly with the cable 50.

[0038] In this embodiment, combined with Figure 3 and Figure 4 The sealing component 20 is provided with a clearance through hole 22 so that the sealing component 20 is annular, and a wiring device 32 is provided on the base 30, and the wiring device 32 is located in the clearance through hole 22. One end of the wiring device 32 can be connected to the cable 50, and the other end can be connected to the control line or other power transmission line in the lamp. The setting of the clearance through hole 22 and the arrangement position of the wiring device 32 can make the structure of the sealing structure more compact and smaller in volume.

[0039] like Figure 1 and Figure 3 The sealing structure includes a hollow mounting tube 40, which can be used to install the lamp. In this embodiment, the mounting tube 40 is a cylindrical structure. The pressing plate 10 and the sealing component 20 are both located in the mounting tube 40, one end of the base 30 penetrates the mounting tube 40, and the outer edge of the sealing component 20 abuts against the inner wall surface of the mounting tube 40, so that water vapor can be prevented from invading the lamp through the gap between the outer edge of the sealing component 20 and the inner wall surface of the mounting tube 40.

[0040] In order to avoid relative rotational misalignment between the sealing component 20 and the pressure plate 10, which may cause the threading hole 211 to be unable to fit tightly against the cable 50, a plurality of rotation limiting guide rails 41 are provided on the inner wall surface of the mounting tube 40, the outer edge of the pressure plate 10 is provided with a first rotation limiting notch 12, and the outer edge of the sealing component 20 is provided with a second rotation limiting notch 23, the first rotation limiting notch 12 and the second rotation limiting notch 23 are both clamped in the rotation limiting guide rail 41, wherein the rotation limiting guide rail 41 is parallel to the axis of the mounting tube 40, so that the pressing plate 10 and the sealing component 20 can be installed in the interior of the mounting tube 40 along the rotation limiting guide rail 41, and due to the restriction of the rotation limiting guide rail 41, the pressing plate 10 and the sealing component 20 cannot rotate relative to the mounting tube 40 around the axis of the mounting tube 40.

[0041] In this embodiment, the number of the first rotation limiting notches 12 and the second rotation limiting notches 23 are the same and both are provided in plurality. Each first rotation limiting notch 12 corresponds to a second rotation limiting notch 23. When the pressure plate 10 is provided with only one guide hole 11, the plurality of second rotation limiting notches 23 can enable the plurality of mounting blocks 21 of the sealing component 20 to be stably facing the guide hole 11 of the pressure plate 10.

[0042] Example 2

[0043] The difference between this embodiment and the first embodiment is that there are multiple guide holes 11, and each mounting block 21 corresponds to one guide hole 11. When replacing cables 50 with different outer diameters, the pressing plate 10 and the sealing component 20 are removed from the mounting tube 40, and the sealing component 20 (and the pressing plate 10) are rotated relative to the base 30 by a certain angle, so that the corresponding mounting block 21 (and the threading hole 211) is aligned with the threading hole 31, and then each mounting block 21 is inserted into the corresponding guide hole 11. Among them, the mounting block 21 is a rotating body structure, and the outer diameters of the multiple mounting blocks 21 are different. Correspondingly, the size of each guide hole 11 matches the size of the corresponding mounting block 21.

[0044] Therefore, when adapting to cables 50 with different outer diameters, the sealing component 20 and the pressing plate 10 need to be rotated relative to the base 30 at a certain angle.

[0045] Example 3

[0046] The difference between this embodiment and the first embodiment is that there is only one guide hole 11, and the pressure plate 10 is also provided with a plurality of avoidance holes. One of the mounting blocks 21 of the sealing component 20 is inserted into the guide hole 11, and the threading through hole 211 of the mounting block 21 can pass the cable 50, and the remaining mounting blocks 21 of the sealing component 20 are inserted into the corresponding avoidance holes. When adapting to cables 50 with different outer diameters, it is only necessary to rotate the sealing component 20 relative to the base 30 by a certain angle so that the threading through hole 211 on the corresponding mounting block 21 is aligned with the wire hole 31 of the base 30, and the pressure plate 10 does not need to be rotated relative to the base 30.

[0047] Example 4

[0048] In order to solve the same technical problem, the present embodiment discloses a lamp, comprising the sealing structure as described above, wherein the light emitting element of the lamp is arranged in the mounting tube 40, and the base 30 is connected to the lamp pole. The mounting tube 40 is sleeved at one end of the base 30, and the pressing plate 10 and the sealing component 20 are both located in the mounting tube 40.

[0049] To summarize, the inner wall surface of the guide hole 11 of the pressure plate 10 is a conical surface, and a plurality of mounting blocks 21 are arranged on the sealing component 20. Each mounting block 21 is provided with a threading hole 211 for threading the cable 50. The apertures of the plurality of threading holes 211 are different to match cables 50 with different outer diameters. The pressure of the threading hole 211 on the cable 50 threaded therein increases as the mounting block 21 gradually penetrates into the guide hole 11, so that the threading hole 211 is tightly fitted with the cable 50, thereby improving the waterproof performance.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sealing structure, characterized in that: It includes a pressing plate and an elastic sealing component; The pressing plate is provided with a guide hole, and the inner wall surface of the guide hole is a conical surface; The sealing component is provided with a plurality of mounting blocks, and the mounting blocks are provided with threading holes for threading cables, and the apertures of the plurality of threading holes are different; The installation block is inserted into the guide hole, and the pressure of the wire threading through hole on the cable inserted therein increases as the installation block gradually penetrates into the guide hole.

2. The sealing structure according to claim 1, characterized in that: The outer side surface of the mounting block is a conical surface.

3. The sealing structure according to claim 1, characterized in that: There are a plurality of guide holes, and each mounting block corresponds to one guide hole.

4. The sealing structure according to claim 1, characterized in that: Also includes a base; One end surface of the sealing component is attached to the pressing plate, and the other end surface of the sealing component is attached to the base; The base is provided with a wire passing hole, and one of the wire passing through holes is coaxially arranged with the wire passing hole.

5. The sealing structure according to claim 4, characterized in that: The sealing component is provided with a clearance through hole so that the sealing component is annular, and the base is provided with a wiring device, and the wiring device is located in the clearance through hole.

6. The sealing structure according to claim 1, characterized in that: Also included is a hollow mounting barrel; The pressing plate and the sealing component are both located in the installation tube, and the outer edge of the sealing component abuts against the inner wall surface of the installation tube.

7. The sealing structure according to claim 6, characterized in that: The inner wall surface of the mounting cylinder is provided with a plurality of rotation limiting guide rails, the outer edge of the pressure plate is provided with a first rotation limiting notch, the outer edge of the sealing component is provided with a second rotation limiting notch, and the first rotation limiting notch and the second rotation limiting notch are both clamped in the rotation limiting guide rails.

8. The sealing structure according to claim 7, characterized in that: The number of the first rotation limiting notches and the number of the second rotation limiting notches are the same and are both provided in plurality, and each of the first rotation limiting notches corresponds to one of the second rotation limiting notches.

9. The sealing structure according to claim 3, characterized in that: The mounting block is a rotating body structure, and the outer diameters of the plurality of mounting blocks are different.

10. A lamp, characterized in that: Comprising the sealing structure according to any one of claims 1 to 9.

Images