Lamp rear cover with sealing structure and lamp

Abstract

The utility model discloses a lamp rear cover with a sealing structure and a lamp, which relate to the technical field of lamp sealing and comprise a lamp structure and a rear cover structure. The lamp structure is composed of a lamp body and a lampshade in threaded connection, and a light source assembly is installed in the lamp body. The rear cover structure comprises a sealing cover, a threaded ring, an air bag ring, an air storage ring and an inflation structure, by pressing a pressing air bag of the inflation structure, air enters the air bag ring through the air guide cover and the one-way valve, the air bag ring expands and is tightly attached to the inner wall of the lamp body, and dynamic sealing is achieved. The reset structure achieves automatic reset of the pressing air bag through a compression spring and a sleeve rod. The sealing ring solves the problem that a traditional sealing ring is prone to abrasion, and is suitable for lamp scenes with high waterproof requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to lamp sealing technical field, specifically, relate to a lamp rear cover with sealing structure and lamp. BACKGROUND

[0002] The sealing structure of traditional lamps mostly adopts fixed rubber ring or silica gel gasket, and realizes the sealing between the lamp body and the rear cover through mechanical extrusion. Such design relies on assembly accuracy, and if there is tolerance in the inner wall of the lamp body or the material is aged after long-term use, the sealing failure is easily caused, and water vapor or dust penetrates into the lamp interior. In addition, the fixed sealing ring needs to be manually peeled off when the rear cover is disassembled, which is complicated to operate and easily causes the deformation and damage of the sealing ring.

[0003] However, the prior art has the following problems:

[0004] Low sealing reliability: the static sealing ring cannot self-adapt to the tolerance of the inner wall of the lamp body, and is easily caused to leak gas or water due to wear or deformation after long-term use;

[0005] Complex structure: some high-sealing lamps adopt a multilayer sealing structure, which causes the increase in volume and low assembly efficiency.

[0006] For the problems in the related art, no effective solution has been proposed so far. INVENTION CONTENTS

[0007] In view of the problems in the related art, the utility model provides a lamp rear cover with sealing structure and lamp to overcome the above technical problems existing in the prior art.

[0008] Therefore, the utility model adopts the specific technical scheme as follows:

[0009] A lamp rear cover with sealing structure and lamp, comprising a lamp structure, the lamp structure comprising a lamp body and a lampshade, the lamp body being threadedly connected with the lampshade, and the lamp body being provided with a light source assembly.

[0010] A lamp rear cover with sealing structure, comprising a rear cover structure, the rear cover structure comprising a sealing cover, a threaded ring, an air bag ring, an air storage ring and a first one-way valve, the sealing cover being provided with the threaded ring, one end of the threaded ring being provided with the air bag ring, the air bag ring being installed on the sealing cover, the air bag ring being connected with the air storage ring, the inner ring of the air storage ring being connected with the first one-way valve, the first one-way valve being connected with a gas filling structure, and the gas filling structure being connected with a reset structure.

[0011] Further, the gas filling structure comprises a gas guide cover, a pressing air bag, a connecting hole, a threading groove and a second one-way valve, the pressing air bag being sealingly connected to the gas guide cover, the connecting hole being formed in the side of the gas guide cover, the first one-way valve being communicated with the connecting hole through a gas guide pipe, the threading groove being formed in the pressing air bag, the threading groove being sealingly connected with a wire, and the second one-way valve being sealingly connected to the pressing air bag.

[0012] Further, the reset structure comprises a hinged seat, a sleeve rod, a compression spring and a limiting groove, the sleeve rod is rotationally connected to the hinged seat, limiting grooves are fixedly arranged at two ends of the sleeve rod, the compression spring is sleeved on the sleeve rod, and two ends of the compression spring are in contact with the limiting grooves, and the hinged seat is fixedly installed on the air guide cover and the pressing air bag respectively.

[0013] The air bag ring can be inflated and expanded to adhere to the inner wall of the lamp body, the processing tolerance and material deformation can be automatically compensated, the sealing reliability is improved, and the air bag ring is especially suitable for humid and dusty environments. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0015] Figure 1 is a main body structure schematic view of a lamp rear cover and a lamp with a sealing structure according to an embodiment of the present application;

[0016] Figure 2 is a lamp structure schematic view of a lamp rear cover and a lamp with a sealing structure according to an embodiment of the present application;

[0017] Figure 3 is a rear cover structure front view of a lamp rear cover and a lamp with a sealing structure according to an embodiment of the present application;

[0018] Figure 4 is a rear cover structure internal view of a lamp rear cover and a lamp with a sealing structure according to an embodiment of the present application;

[0019] Figure 5 is a gas filling structure schematic view of a lamp rear cover and a lamp with a sealing structure according to an embodiment of the present application;

[0020] Figure 6 is a gas storage ring schematic view of a lamp rear cover and a lamp with a sealing structure according to an embodiment of the present application;

[0021] Figure 7 is a reset structure schematic view of a lamp rear cover and a lamp with a sealing structure according to an embodiment of the present application.

[0022] In the drawings:

[0023] 1, lamp structure; 101, lamp body; 102, lampshade; 2, rear cover structure; 201, sealing cover; 202, threaded ring; 203, air bag ring; 204, air storage ring; 205, first one-way valve; 3, inflation structure; 301, gas guide cover; 302, press gas bag; 303, connecting hole; 304, threading groove; 305, second one-way valve; 4, reset structure; 401, hinged seat; 402, sleeve rod; 403, compression spring; 404, limiting groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] According to the embodiments of the utility model, a lamp rear cover with sealing structure and lamp are provided.

[0026] Embodiment one;

[0027] As Figures 1-7 shown, according to the lamp rear cover with sealing structure and lamp of the embodiments of the utility model, including lamp structure 1, lamp structure 1 includes lamp body 101, lampshade 102, lamp body 101 is screw threaded with lampshade 102, and light source assembly is installed in lamp body 101.

[0028] A lamp rear cover with sealing structure includes rear cover structure 2, rear cover structure 2 includes sealing cover 201, threaded ring 202, air bag ring 203, air storage ring 204, first one-way valve 205, threaded ring 202 is set on sealing cover 201, one end of threaded ring 202 is provided with air bag ring 203, air bag ring 203 is installed on sealing cover 201, air bag ring 203 is connected with air storage ring 204, inner ring of air storage ring 204 is connected with first one-way valve 205, first one-way valve 205 is connected with inflation structure 3, and reset structure 4 is connected in inflation structure 3.

[0029] Inflation structure 3 includes gas guide cover 301, press gas bag 302, connecting hole 303, threading groove 304 and second one-way valve 305, press gas bag 302 is sealingly connected to gas guide cover 301, connecting hole 303 is formed in the side of gas guide cover 301, first one-way valve 205 is communicated with connecting hole 303 through gas guide pipe, threading groove 304 is formed in press gas bag 302, and wire is sealingly connected to threading groove 304, second one-way valve 305 is sealingly connected to press gas bag 302.

[0030] The reset structure 4 comprises a hinged seat 401, a sleeve rod 402, a compression spring 403, and a limiting groove 404. The sleeve rod 402 is rotatably connected to the hinged seat 401. The limiting groove 404 is fixedly arranged at both ends of the sleeve rod 402. The compression spring 403 is sleeved on the sleeve rod 402. The both ends of the compression spring 403 are in contact with the limiting groove 404. The hinged seat 401 is fixedly arranged on the air guide cover 301 and the press air bag 302 respectively.

[0031] Embodiment 1

[0032] A lamp rear cover with a sealing structure and a lamp, comprising a lamp structure 1 and a rear cover structure 2.

[0033] Lamp main body structure

[0034] The lamp structure 1 is composed of a lamp body 101 and a lamp shade 102. The lamp body 101 is made of aluminum alloy and has an installation groove in the inside for fixing a light source assembly. The light source assembly is an LED module. The lamp shade 102 is made of transparent PC and is fixedly connected to the open end of the lamp body 101 through screw threads.

[0035] Rear cover sealing structure

[0036] The rear cover structure 2 comprises a sealing cover 201, a screw thread ring 202, an air bag ring 203, an air storage ring 204, and a first one-way valve 205.

[0037] The sealing cover 201 is a circular plastic shell with a screw thread ring 202 arranged at the edge. The screw thread ring 202 is locked with the screw thread groove of the lamp body 101.

[0038] The screw thread ring 202 has an annular air bag ring 203 arranged at the inner side. The air bag ring 203 is made of silica gel and is fixed in the groove of the sealing cover 201. The air bag ring 203 is communicated with the air storage ring 204 through an air guide pipe. The air storage ring 204 is a flexible rubber cavity that only allows gas to flow from the air storage ring 204 to the air bag ring 203.

[0039] Inflation and reset

[0040] The inflation structure 3 comprises an air guide cover 301, a press air bag 302, a connecting hole 303, a wire slot 304, and a second one-way valve 305. The air guide cover 301 is welded at the bottom of the sealing cover 201. The press air bag 302 is an elastic rubber bag fixedly connected to the top of the air guide cover 301 through screw threads. The air guide cover 301 has the connecting hole 303 arranged at the side. The connecting hole 303 is communicated with the first one-way valve 205 through the air guide pipe.

[0041] The press air bag 302 has the wire slot 304 arranged at the top. The wire is inserted into the inside of the lamp body 101 through the silica gel sealing plug. The second one-way valve 305 is installed at the bottom of the press air bag 302, allowing external air to enter the press air bag 302 but preventing gas backflow.

[0042] The reset structure 4 is composed of a hinged seat 401, a sleeve rod 402, a compression spring 403 and a limiting groove 404. The hinged seat 401 is fixed to the side wall of the air guide cover 301 and the pressing air bag 302, the displacement range of the compression spring 403 is limited by the limiting groove 404 at both ends of the sleeve rod 402, when the pressing air bag 302 is pressed down, the sleeve rod 402 rotates around the hinged seat 401, the compression spring 403 stores energy, and after release, the compression spring 403 pushes the sleeve rod 402 to reset, so that the pressing air bag 302 returns to the original state.

[0043] Workflow

[0044] Sealing operation:

[0045] The threaded ring 202 of the rear cover structure 2 is screwed into the lamp body 101, the pressing air bag 302 is pressed by a tool, and the gas enters the gas storage ring 204 and the air bag ring 203 through the air guide cover 301, the connecting hole 303 and the first one-way valve 205. The air bag ring 203 is tightly attached to the inner wall of the lamp body 101 after expansion, and a radial seal is formed.

[0046] Pressurization and maintenance:

[0047] If the internal gas pressure of the air bag ring 203 decreases, the air bag ring 203 can be recharged by pressing the pressing air bag 302, so as to prevent the problem of gas pressure reduction caused by temperature change.

[0048] Example 2 - preferred embodiment

[0049] Optimization based on example 1:

[0050] The air bag ring 203 adopts a double-layer silica gel structure, the inner layer is made of anti-aging material, and the outer layer is made of wear-resistant coating;

[0051] The compression spring 403 is made of stainless steel;

[0052] The waterproof rubber ring is additionally arranged in the threading groove 304, and the wire is sealed again by hot melt glue after being inserted.

[0053] Example 3 - simplified implementation

[0054] Suitable for low-cost scenarios:

[0055] The reset structure 4 is cancelled, and the pressing air bag 302 is manually pulled and reset;

[0056] The gas storage ring 204 and the air bag ring 203 are designed in an integrated manner, and the inflation sealing is completed by single pressing.

[0057] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0058] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lamp rear cover having a sealing structure, characterized by, Including rear cover structure (2), the rear cover structure (2) includes sealing cover (201), screw ring (202), air bag ring (203), gas storage ring (204), first check valve (205), the sealing cover (201) is set with screw ring (202), one end of the screw ring (202) is equipped with air bag ring (203), the air bag ring (203) is installed on the sealing cover (201), the air bag ring (203) is connected with gas storage ring (204).

2. The rear cover of the lamp with a sealing structure according to claim 1, characterized in that, The inner ring of the gas storage ring (204) is connected with the first check valve (205), the first check valve (205) is connected with the inflation structure (3), and the inflation structure (3) is connected with the reset structure (4).

3. The lamp cover with a sealing structure according to claim 2, wherein, The inflation structure (3) includes a gas guide cover (301), a pressing air bag (302), a connecting hole (303), a threading groove (304), and a second check valve (305), the pressing air bag (302) is sealingly connected to the gas guide cover (301), and the connecting hole (303) is formed in the side of the gas guide cover (301).

4. The lamp cover with a sealing structure according to claim 3, wherein, The first check valve (205) is communicated with the connecting hole (303) through a gas guide pipe, the pressing air bag (302) is provided with a threading groove (304), the threading groove (304) is sealingly connected with a wire, and the second check valve (305) is sealingly connected to the pressing air bag (302).

5. The lamp cover with a sealing structure according to claim 4, wherein, The reset structure (4) includes a hinge seat (401), a sleeve rod (402), a compression spring (403), and a limiting groove (404), the hinge seat (401) is rotatably connected with the sleeve rod (402), the limiting groove (404) is fixedly arranged at both ends of the sleeve rod (402), and the compression spring (403) is sleeved on the sleeve rod (402).

6. The lamp cover with a sealing structure according to claim 5, wherein, Both ends of the compression spring (403) are in contact with the limiting groove (404), and the hinge seat (401) is fixedly installed on the gas guide cover (301) and the pressing air bag (302) respectively.

7. A lamp based on the lamp back cover with sealing structure according to claim 6, characterized in that, The lamp structure (1) includes a lamp body (101) and a lampshade (102), the lampshade (102) is threadedly connected to the lamp body (101), and the light source assembly is installed in the lamp body (101).

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