Waterproof sealing structure of LED projection lamp

Abstract

The utility model relates to the technical field of waterproof sealing structures, in particular to a waterproof sealing structure of a light-emitting diode (LED) project lamp, which comprises a base arranged on a lamp body rear cover and a sealing piece capable of being spliced and sleeved outside a power line, and the sealing piece is detachably connected onto the base and used for sealing the power line and the lamp body rear cover. The sealing piece comprises sealing blocks which are spliced, inserting grooves are formed in the positions, corresponding to the sealing blocks, of the base, inserting blocks extending into the corresponding inserting grooves are arranged on the lower side walls of the sealing blocks, and mounting assemblies used for fixing the inserting blocks into the inserting grooves are arranged in the sealing blocks. The sealing piece is formed by splicing the sealing blocks, so that when one of the sealing blocks is damaged, the damaged sealing block can be taken down from the base after the connection between the sealing block and the base is removed, and compared with the prior art, the sealing piece can quickly replace the sealing blocks and is convenient to use actually.

Description

Technical Field

[0001] This utility model relates to the field of waterproof sealing structure technology, specifically to a waterproof sealing structure for an LED floodlight. Background Technology

[0002] Floodlights are a type of outdoor lighting fixture. They have advantages such as low energy consumption and high brightness, and are therefore widely used for outdoor background lighting. Floodlights use LED beads to emit light, so a certain level of sealing is required during use.

[0003] For example, patent CN207796697U discloses a square floodlight, including a lamp body module, a lamp assembly module, a mounting bracket, a waterproof connector, and a power cord. The lamp body module includes a rear cover, a front lamp body, and a sealing ring. The front lamp body is a one-piece molded cube with a hollow interior and an opening on only one side. The sealing ring is located between the rear cover and the front lamp body. The lamp assembly module includes an aluminum substrate, a lamp matrix, a lens matrix, and a lampshade. The aluminum substrate is fixed to the front lamp body. The lamp matrix and the lens matrix are both located on the aluminum substrate. The lens matrix is ​​located above the lamp matrix, and the position of each lens corresponds to the position of each LED. The lampshade is installed on the front lamp body and is located above the lens matrix. The mounting bracket is fixed to the rear cover. The waterproof connector is located on the rear cover and is electrically connected to the aluminum substrate. Although this square floodlight improves light utilization and aesthetics while saving material costs through its compact square matrix lens arrangement, it suffers from several drawbacks. In practical use, the power cord and back cover are typically waterproofed via a waterproof connector. This connector consists of a base that securely connects to the back cover and a nut that fits over the power cord and is threaded onto the base. When the nut is damaged, the other end of the power cord usually has a plug, which is quite large. To remove the nut from the base via the power cord, the plug on the power cord must be disconnected before the nut can be replaced, which is inconvenient and requires improvement. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof sealing structure for LED floodlights to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waterproof sealing structure for an LED floodlight includes a base on the rear cover of the lamp body and a sealing element that can be spliced ​​onto the power cord. The sealing element is detachably connected to the base and is used to seal the power cord and the rear cover of the lamp body. The sealing element includes a spliced ​​sealing block. The base has a slot corresponding to the sealing block. The lower side wall of the sealing block has an insert that extends into the corresponding slot. The sealing block has an installation component for fixing the insert into the slot.

[0007] Preferably, the slots have opposite sidewalls with insertion holes, the insertion block has a movable cavity, and the mounting assembly includes movable blocks that are disposed opposite each other in the movable cavity and are movable. The movable blocks have fixed rods that can extend into the corresponding insertion holes. The inner wall of the movable cavity has elastic pads for pushing the movable blocks closer to each other. The end faces of the movable blocks that are close to each other have a first inclined surface. The movable cavity also has a lifting block that can be raised and lowered. The lifting block has a second inclined surface corresponding to the first inclined surface. The lifting block moves down to drive the movable blocks away from each other.

[0008] Preferably, a threaded rod is rotatably connected to the upper end face of the lifting block. The upper end of the threaded rod is threaded through the sealing block and extends out. Rotating the threaded rod is used to drive the lifting block to move up and down within the moving cavity.

[0009] Preferably, the base is also provided with a stepped portion that covers the power cord. A T-shaped block is provided on the outer wall of the stepped portion, and an arc-shaped groove that mates with the stepped portion is provided on the inner wall of the sealing block. A T-shaped groove that mates with the T-shaped block is provided on the inner wall of the arc-shaped groove.

[0010] Preferably, the sealing block has a stepped ring on the inner wall near the power cord and an annular groove on the outer wall, with a rubber ring fitted inside the annular groove.

[0011] Preferably, a gripping disc is provided at the top of the threaded rod.

[0012] Preferably, a cushioning pad is provided on the side of the sealing block near the base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model forms a sealing element by splicing sealing blocks together. When one of the sealing blocks is damaged, the connection between the sealing block and the base can be disconnected, and the damaged sealing block can be removed from the base. Compared with the existing ones, this utility model can quickly replace the sealing block and is convenient for practical use.

[0015] 2. In this utility model, the buffer pad makes the contact between the sealing block and the base gentler to prevent wear between them, and at the same time improves the sealing performance between them. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a waterproof sealing structure for an LED floodlight according to the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the lamp body and power cord in this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is an exploded view of the sealing block and rubber ring in this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the sealing block, buffer pad, and sealing gasket in this utility model.

[0021] Figure 6 This is a cross-sectional view of the insert block and threaded rod in this utility model.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 100. Lamp body; 101. Power cord; 110. Base; 120. Sealing element;

[0024] 210, slot; 211, socket; 220, stepped portion; 221, T-block;

[0025] 300, sealing block; 301, buffer pad; 310, annular groove; 320, rubber ring; 330, stepped ring; 340, threaded rod; 341, gripping disc; 350, insert block;

[0026] 400, T-slot; 410, fixing rod; 420, arc-shaped groove;

[0027] 500, Moving cavity; 510, Lifting block; 520, Moving block; 521, Elastic pad; 530, Guide rod. Detailed Implementation

[0028] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0029] The following is in conjunction with the appendix Figures 1-6 This embodiment will be described in further detail.

[0030] Please see Figures 1-3 The waterproof sealing structure of an LED floodlight in this embodiment includes a base 110 disposed on the rear cover of the lamp body 100 and a sealing member 120 that can be spliced ​​and fitted over the power cord 101. The sealing member 120 is detachably connected to the base 110 and is used to seal the power cord 101 and the rear cover of the lamp body 100. The sealing member 120 includes a sealing block 300 spliced ​​together. The base 110 is provided with a slot 210 corresponding to the sealing block 300. The lower side wall of the sealing block 300 is provided with an insert 350 that extends into the corresponding slot 210. The sealing block 300 is provided with an installation component for fixing the insert 350 into the slot 210.

[0031] In this embodiment, the lamp body 100 is an existing LED floodlight, which includes a housing and a rear cover installed at the rear end of the housing. The power cord 101 extends through the rear cover. In this embodiment, the power cord 101 extends through the base 110, which is fixed to the rear cover. A sealing block 300 is installed on the base 110, so that the two sealing blocks 300 are fixed and attached to the outside of the power cord 101. This is used to seal the position where the power cord 101 extends through the rear cover of the lamp body 100, so that it has a waterproof effect.

[0032] In this embodiment, two sealing blocks 300 are spliced ​​together to form a sealing element 120. When one of the sealing blocks 300 is damaged, the connection between the sealing block 300 and the base 110 can be disconnected, and the damaged sealing block 300 can be removed from the base 110. Compared with the existing method, this embodiment can quickly replace the sealing block 300, which is convenient for actual use.

[0033] Combination Figure 2-6 As shown, in this embodiment, the slot 210 has opposite insertion holes 211 on its sidewalls, the insertion block 350 has a movable cavity 500, and the mounting assembly includes a movable block 520 disposed in the movable cavity 500 and movable therein. The movable block 520 is provided with a fixing rod 410 that can extend into the insertion hole 211. The inner wall of the movable cavity 500 is provided with an elastic pad 521 for pushing the movable blocks 520 closer to each other. The end faces of the movable blocks 520 that are close to each other are provided with a first inclined surface. The movable cavity 500 is also provided with a lifting block 510 that can be raised and lowered. The lifting block 510 is provided with a second inclined surface corresponding to the first inclined surface. The lifting block 510 moves down to drive the movable blocks 520 away from each other.

[0034] In this embodiment, when it is necessary to connect the sealing block 300 and the base 110, the insert block 350 is first inserted into the slot 210, the lifting block 510 is moved down, causing the second inclined surface to move down and press against the first inclined surface, thereby causing the moving blocks 520 to move away from each other and press against the elastic pad 521, so that the fixing rod 410 extends from the moving cavity 500 into the corresponding insertion hole 211. At this time, the fixing rod 410 can restrict the insert block 350 and prevent it from falling out of the slot 210. Thus, the connection between the sealing block 300 and the base 110 is completed. When it is necessary to disconnect the sealing block 300 and the base 110, the lifting block 510 is moved upward to release the pressure of the second inclined surface on the first inclined surface. Under the elastic force of the elastic pad 521, the moving blocks 520 move closer to each other, causing the fixing rod 410 to disengage from the insertion hole 211 and retract into the moving cavity 500, thereby releasing the fixing of the insertion block 350 in the slot 210. At this time, the insertion block 350 can be removed from the slot 210 by moving upward. Thus, the mounting components can be better installed and removed from the corresponding sealing block 300, which is convenient for actual use.

[0035] In order to restrict the movement direction of the moving block 520, a guide rod 530 is provided in the moving cavity 500. The guide rod 530 passes through the two moving blocks 520. At the same time, the side wall of the moving block 520 slides against the side wall of the moving cavity 500. Thus, when the second inclined surface presses against the first inclined surface, the moving block 520 will move along the axial direction of the guide rod 530, and finally drive the fixed rod 410 to extend or move into the moving cavity 500.

[0036] Combination Figure 5-6 As shown, in this embodiment, a threaded rod 340 is rotatably connected to the upper end face of the lifting block 510. The upper end of the threaded rod 340 extends through the sealing block 300. Rotating the threaded rod 340 is used to drive the lifting block 510 to rise and fall within the moving cavity 500.

[0037] In this embodiment, the bottom end of the threaded rod 340 is rotatably mounted on the upper end face of the lifting block 510 via a bearing. The threaded rod 340 passes through the sealing block 300. When the threaded rod 340 is rotated, the threaded rod 340 will rise and fall along its axial direction, thereby driving the lifting block 510 to rise and fall accordingly, so that the second inclined surface is squeezed or separated from the first inclined surface, thereby realizing the movement of the moving block 520.

[0038] In order to facilitate the rotation of the threaded rod 340, a gripping disc 341 is provided at the top end of the threaded rod 340.

[0039] Combination Figure 3-5 As shown, in this embodiment, the base 110 is also provided with a stepped portion 220 covering the power cord 101. A T-shaped block 221 is provided opposite to the side wall of the stepped portion 220. The inner wall of the sealing block 300 is provided with an arc-shaped groove 420 that cooperates with the stepped portion 220. The inner wall of the arc-shaped groove 420 is provided with a T-shaped groove 400 that cooperates with the T-shaped block 221.

[0040] In this embodiment, the T-shaped block 221 is axially arranged along the step portion 220. When the sealing block 300 needs to be installed on the base 110, the T-shaped groove 400 is aligned with the T-shaped block 221 and moved downward. At this time, the bottom end of the sealing block 300 overlaps the base 110. At this time, the insert 350 can be inserted into the corresponding slot 210, making the connection of the sealing block 300 on the base 110 more secure.

[0041] Combination Figure 3-5 As shown, in this embodiment, the sealing block 300 has a stepped ring 330 on the inner side wall near the power line 101, and an annular groove 310 on the outer side wall of the sealing block 300, with a rubber ring 320 fitted inside the annular groove 310.

[0042] In this embodiment, when the sealing block 300 is fixedly installed on the base 110, the step ring 330 can be spliced ​​together to form a pressure ring that overlaps the upper end of the step portion 220. At this time, in order to improve the sealing performance at the pressure ring, a sealing ring that fits around the power cord 101 is provided at the upper end of the step portion 220.

[0043] Specifically, in order to improve the stability of the stepped rings 330 when they are spliced ​​together, a rubber ring 320 can be fitted into the corresponding annular groove 310, thereby making the stepped rings 330 clamp together, improving the tightness of the pressure ring sealing ring formed by them, and improving their sealing effect.

[0044] Combination Figure 3-5 As shown, in this embodiment, the sealing block 300 is provided with a buffer pad 301 near the upper side of the base 110.

[0045] In this embodiment, the buffer pad 301 allows for a gentler contact between the sealing block 300 and the base 110, preventing wear and tear on both while also improving the sealing performance between them.

[0046] Working principle: When it is necessary to replace a sealing block 300 on the base 110, remove the rubber ring 320 in the annular groove 310, rotate the corresponding threaded rod 340 to move the lifting block 510 in the corresponding sealing block 300 upward, the second inclined surface releases the pressure on the first inclined surface, and under the elastic force of the elastic pad 521, the moving blocks 520 move closer to each other, so that the fixing rod 410 disengages from the insertion hole 211 and retracts into the moving cavity 500. At this time, lift the sealing block 300 until it disengages from the T-shaped block 221, and the sealing block 300 can be removed from the base 110.

[0047] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A waterproof sealing structure for an LED floodlight, comprising a base (110) disposed on the rear cover of the lamp body (100) and a sealing element (120) that can be spliced ​​onto the power cord (101), characterized in that: The seal (120) is detachably connected to the base (110) for sealing the power cord (101) and the back cover of the lamp body (100); the seal (120) includes a sealing block (300) that is spliced ​​together, and the base (110) has a slot (210) corresponding to the sealing block (300), and the lower side wall of the sealing block (300) has an insert (350) that extends into the corresponding slot (210), and the sealing block (300) has an installation component for fixing the insert (350) into the slot (210).

2. The waterproof sealing structure of an LED floodlight according to claim 1, characterized in that: The slot (210) has opposite sidewalls with corresponding insertion holes (211), and the insertion block (350) has a movable cavity (500). The mounting assembly includes a movable block (520) that is disposed opposite to the movable cavity (500) and is movable. The movable block (520) has a fixed rod (410) that can extend into the corresponding insertion hole (211). The inner wall of the movable cavity (500) has an elastic pad (521) for pushing the movable blocks (520) closer to each other. The end faces of the movable blocks (520) that are close to each other have a first inclined surface. The movable cavity (500) also has a lifting block (510) that can be raised and lowered. The lifting block (510) has a second inclined surface corresponding to the first inclined surface. The lifting block (510) moves down to drive the movable blocks (520) away from each other.

3. The waterproof sealing structure of an LED floodlight according to claim 2, characterized in that: A threaded rod (340) is rotatably connected to the upper end face of the lifting block (510). The upper end of the threaded rod (340) is threaded through the sealing block (300) and extends out. Rotating the threaded rod (340) is used to drive the lifting block (510) to rise and fall within the moving cavity (500).

4. The waterproof sealing structure of an LED floodlight according to claim 3, characterized in that: The base (110) is also provided with a stepped part (220) that covers the power cord (101). A T-shaped block (221) is provided on the outer side wall of the stepped part (220). The inner wall of the sealing block (300) is provided with an arc groove (420) that cooperates with the stepped part (220). The inner wall of the arc groove (420) is provided with a T-shaped groove (400) that cooperates with the T-shaped block (221).

5. The waterproof sealing structure of an LED floodlight according to claim 4, characterized in that: The sealing block (300) has a stepped ring (330) on the inner side wall near the power line (101), and an annular groove (310) on the outer side wall of the sealing block (300). A rubber ring (320) is fitted inside the annular groove (310).

6. The waterproof sealing structure of an LED floodlight according to claim 3, characterized in that: A gripping disc (341) is provided at the top of the threaded rod (340).

7. The waterproof sealing structure of an LED floodlight according to claim 4, characterized in that: A cushioning pad (301) is provided on the side of the sealing block (300) near the base (110).

Images