Explosion-proof lamp light-transmitting cover fixing structure

Abstract

An explosion-proof lamp light-transmitting cover fixing structure, comprising: a lamp body (1), a pressing ring (2) and a light-transmitting cover (3), wherein the pressing ring (2) is mounted on the lamp body (1), the light-transmitting cover (3) is mounted on the pressing ring (2), and a light-emitting end of the lamp body (1) passes through the pressing ring (2) and directly faces the light-transmitting cover (3). The side of the pressing ring (2) away from the lamp body (1) is provided with an annular slot (4); the side of the annular slot (4) close to the lamp body is provided with a bottom surface; the side of the annular slot (4) away from the lamp body is sequentially provided with a plurality of engagement members (5) in the circumferential direction, a gap (6) being formed between each engagement member (5) and the bottom surface; the outer side of the light-transmitting cover (3) is sequentially provided with a plurality of engaging feet (15) in the circumferential direction, wherein the engaging feet (15) can movably extend into the gaps (6).

Description

Fixing structure of explosion-proof lamp light-transmitting cover TECHNICAL FIELD

[0001] The utility model relates to lamp production technical field especially, relates to a fixing structure of explosion-proof lamp light-transmitting cover. BACKGROUND

[0002] At present, lamps are widely used in various industries with lighting needs. In the dangerous place where there is combustible gas and dust, a corresponding explosion-proof lamp light-transmitting cover fixing structure is generally provided. This kind of lamp generally requires to minimize the arc, spark and high temperature that may be generated inside the lamp, and to be isolated from the surrounding environment, so as to ensure that the combustible gas and dust in the surrounding environment will not be ignited.

[0003] Usually, this kind of explosion-proof lamp light-transmitting cover fixing structure includes a lampshade and a lamp body connected to each other. However, during production and installation, the relative fixation of the lampshade and the lamp body often needs to use multiple parts, such as multiple screws, and the installation process is relatively complicated, which directly affects the production efficiency and increases the production cost. In addition, the sealing effect of the lamp is also easily affected by the tolerance of the parts.

[0004] SUMMARY

[0005] Therefore, in order to solve the above problems, the purpose of the utility model is to provide a fixing structure of explosion-proof lamp light-transmitting cover, which comprises a lamp body, a pressing ring and a light-transmitting cover. The pressing ring is installed on the lamp body, and the light-transmitting cover is installed on the pressing ring. The light-emitting end of the lamp body passes through the pressing ring and is arranged opposite to the light-transmitting cover.

[0006] In this embodiment, the side of the pressing ring away from the lamp body is provided with an annular groove. The side of the annular groove close to the lamp body has a bottom surface. A plurality of clamping pieces are arranged along the ring direction on the side of the annular groove away from the lamp body. A gap is formed between the clamping pieces and the bottom surface. A plurality of clamping feet are arranged along the ring direction on the outside of the light-transmitting cover. The clamping feet can be movably inserted into the gap.

[0007] In another preferred embodiment, a gap is formed between each adjacent two clamping pieces. The outer contour of the gap is greater than or equal to the outer contour of the clamping piece. The clamping piece can be movably arranged through the gap.

[0008] In another preferred embodiment, the clamping piece is arranged radially inwardly protruding relative to the annular groove.

[0009] In another preferred embodiment, the clamping feet are arranged in an arc strip structure along the ring direction of the light-transmitting cover.

[0010] In another preferred embodiment, one end of the clamping leg is formed with a beveled portion, which extends from the side of the clamping leg away from the lamp body to the side of the clamping leg close to the lamp body.

[0011] In another preferred embodiment, the annular groove is filled with sealing glue.

[0012] In another preferred embodiment, the side of the pressing ring close to the lamp body is formed with an inner ring portion, and the side of the lamp body close to the pressing ring is formed with an outer ring portion, wherein the inner ring portion extends into the inner side of the outer ring portion.

[0013] In another preferred embodiment, the side of the pressing ring close to the lamp body is formed with a stepped surface, which is arranged outside the inner ring portion, and the outer ring portion is arranged against the stepped surface.

[0014] In another preferred embodiment, a sealing ring is arranged between the outer ring portion and the stepped surface.

[0015] In another preferred embodiment, the side of the light-transmitting cover close to the lamp body is formed with an annular edge, which is arranged in contact with the bottom surface.

[0016] The application of the technical scheme has the following positive effects compared with the prior art:

[0017] The application of the technical scheme has the following positive effects compared with the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a schematic diagram of the overall cross section of a light-transmitting cover fixing structure of an explosion-proof lamp according to the present application;

[0019] Fig. 2 is a schematic diagram of the installation of a light-transmitting cover fixing structure of an explosion-proof lamp according to the present application;

[0020] Fig. 3 is a schematic diagram of a pressing ring of a light-transmitting cover fixing structure of an explosion-proof lamp according to the present application;

[0021] Fig. 4 is a schematic diagram of a light-transmitting cover of a light-transmitting cover fixing structure of an explosion-proof lamp according to the present application;

[0022] Fig. 5 is a schematic diagram of sealing glue of a light-transmitting cover fixing structure of an explosion-proof lamp according to the present application.

[0023] In the drawing: 1, lamp body; 2, pressing ring; 3, light-transmitting cover; 4, annular groove; 5, clamping piece; 6, gap; 7, gap; 8, inclined surface part; 9, sealing glue; 10, inner ring part; 11, outer ring part; 12, stepped surface; 13, sealing ring; 14, annular edge; 15, clamping leg. DETAILED DESCRIPTION

[0024] The utility model will be further explained in connection with the drawing and specific embodiment, but not as the limitation of the utility model.

[0025] As shown in FIG. 1 to FIG. 4, a preferred embodiment of the explosion-proof lamp light-transmitting cover fixing structure is shown, including: lamp body 1, pressing ring 2 and light-transmitting cover 3, pressing ring 2 is installed on lamp body 1, light-transmitting cover 3 is installed on pressing ring 2, and the light-emitting end of lamp body 1 passes through pressing ring 2 and is arranged opposite to light-transmitting cover 3. Further, in the actual production process, first, lamp body 1 and pressing ring 2 are pre-installed and fixed, and then light-transmitting cover 3 is installed; lamp body 1, pressing ring 2 and light-transmitting cover 3 are sequentially arranged from top to bottom along the vertical direction; wherein the installation of lamp body 1 and pressing ring 2 can be achieved by welding, clamping, bolt connection and other ways to realize fixed connection.

[0026] Further, as a preferred embodiment, the overall pressing ring 2 is annularly arranged.

[0027] Further, as a preferred embodiment, the upper part of the light-transmitting cover 3 is annularly arranged, and the lower part of the light-transmitting cover 3 is spherically arranged.

[0028] Further, as a preferred embodiment, the side of the pressing ring 2 away from the lamp body 1 is provided with an annular groove 4, the side of the annular groove 4 close to the lamp body 1 has a bottom surface, and the side of the annular groove 4 away from the lamp body 1 is sequentially provided with a plurality of clamping pieces 5 along the ring direction, and the clamping pieces 5 and the bottom surface form a gap 6 therebetween, and the outer side of the light-transmitting cover 3 is sequentially provided with a plurality of clamping legs 15 along the ring direction, and the clamping legs 15 are movably extended into the gap 6. Further, when installing the light-transmitting cover 3 and the pressing ring 2, the light-transmitting cover 3 can be first extended into the inside of the annular groove 4 along the vertical direction, and then the light-transmitting cover 3 is rotated to make the corresponding clamping legs 15 extended into the gap 6, so that the light-transmitting cover 3 is limited at least in the vertical direction.

[0029] Further, as a preferred embodiment, the outer edge part of the bottom surface is archedly arranged towards the direction away from the lamp body 1, so that the cross section of the annular groove 4 is arranged in a convex letter shape, so that the convex part of the convex letter shape can be used to more accurately accommodate the clamping legs 15.

[0030] Further, as a preferred embodiment, the size of the gap 6 along the vertical direction is greater than or equal to the size of the clamping legs 15 along the vertical direction. Further, the clamping legs 15 can more easily enter the gap 6 and realize clamping contact.

[0031] Further, as a preferred embodiment, a gap 7 is formed between each two adjacent clamping members 5, the outer contour of the gap 7 is greater than or equal to the outer contour of the clamping member 5, and the clamping member 5 is movably arranged through the gap 7. Further, the gap 7 is at least open in the vertical direction to allow the clamping leg 15 to pass through the gap 7 from top to bottom and extend into the annular groove 4.

[0032] Further, as a preferred embodiment, the clamping member 5 is arranged radially inwardly protruding relative to the annular groove 4.

[0033] Further, as a preferred embodiment, the clamping leg 15 is arranged in an arc strip structure along the ring direction of the light transmissive cover 3.

[0034] Further, as a preferred embodiment, one end of the clamping leg 15 is formed with a beveled portion 8, which extends from the side of the clamping leg 15 away from the lamp body 1 to the side close to the lamp body 1. Further, the size of the one end of the clamping leg 15 is reduced by the arrangement of the beveled portion 8, so as to facilitate insertion into the gap 6.

[0035] As shown in FIG. 5, further, as a preferred embodiment, the annular groove 4 is filled with sealant 9. Further, the injection position of the sealant 9 is preferably the above-mentioned gap 7, that is, the sealant 9 includes a plurality of injection portions arranged in sequence along the ring direction of the annular groove 4; preferably, the sealant 9 is pre-injected onto the pressing ring 2, and then when the light transmissive cover 3 extends, it can be in contact with the sealant 9 to cause the sealant 9 to be extruded and as much as possible to fill the annular groove 4, thereby ensuring the sealing effect between the light transmissive cover 3 and the pressing ring 2.

[0036] The above only describes the preferred embodiments of the present application, and does not limit the implementation and protection scope of the present application.

[0037] The present application further has the following implementation based on the above:

[0038] In a further embodiment of the present application, the side of the pressing ring 2 close to the lamp body 1 is formed with an inner ring portion 10, and the side of the lamp body 1 close to the pressing ring 2 is formed with an outer ring portion 11, and the inner ring portion 10 is arranged to extend into the inside of the outer ring portion 11.

[0039] In a further embodiment of the present application, the outer ring portion 11 and the inner ring portion 10 can be fixedly connected by welding, clamping, bolt connection and the like.

[0040] In a further embodiment of the present application, the side of the pressing ring 2 close to the lamp body 1 is formed with a stepped surface 12, the stepped surface 12 is arranged on the outside of the inner ring portion 10, and the outer ring portion 11 is arranged against the stepped surface 12.

[0041] In a further embodiment of the utility model, a sealing ring 13 is arranged between the outer ring part 11 and the stepped surface 12. Further, the sealing effect of the contact position between the lamp body 1 and the pressing ring 2 is ensured by arranging the sealing ring 13.

[0042] In a further embodiment of the utility model, an annular edge 14 is formed on the side of the light-transmitting cover 3 close to the lamp body 1, and the annular edge 14 is arranged in contact with the bottom surface. Further, the installation position of the light-transmitting cover 3 is ensured by the contact between the annular edge 14 and the bottom surface.

[0043] In a further embodiment of the utility model, the annular edge 14 comprises a plurality of arc-shaped protruding parts arranged in sequence along the annular direction, and a recess is formed between each two adjacent protruding parts. Further, the protruding parts are used to contact the bottom surface, and the recess can be used to accommodate the sealing glue 9.

[0044] The above description is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model. For those skilled in the art, it should be realized that the equivalent replacement and obvious changes made by applying the contents of the utility model specification and drawings should be included in the protection scope of the utility model.

Claims

1. A structure for fixing a light-transmitting cover of an explosion-proof luminaire, characterized by comprising: The utility model relates to a lamp body, a pressing ring and a light-transmitting cover, the pressing ring is installed on the lamp body, the light-transmitting cover is installed on the pressing ring, the light-emitting end of the lamp body passes through the pressing ring and is arranged to the light-transmitting cover directly, Wherein, the side of the pressing ring away from the lamp body is provided with an annular groove, the side of the annular groove close to the lamp body has a bottom surface, the side of the annular groove away from the lamp body is sequentially provided with a plurality of clamping pieces along the ring direction, the clamping piece and the bottom surface form a gap, the outside of the light-transmitting cover is sequentially provided with a plurality of clamping feet along the ring direction, the clamping foot is movably inserted into the gap. An interval is formed between every two adjacent clamping pieces, the outer contour of the interval is greater than or equal to the outer contour of the clamping piece, and the clamping piece is movably arranged through the interval.

2. The explosion-proof luminaire light transmissible cover fixing structure according to claim 1, characterized in that, The clamping piece is arranged radially inwardly protruding relative to the annular groove.

3. The explosion-proof luminaire light transmissible cover fixing structure according to claim 1, characterized in that, The clamping foot is arranged in an arc strip structure along the ring direction of the light-transmitting cover.

4. The explosion-proof luminaire light transmissible cover fixing structure according to claim 1, characterized in that, One end of the clamping foot forms an inclined surface part, and the inclined surface part is arranged extending from the side of the clamping foot away from the lamp body to the side close to the lamp body.

5. The explosion-proof luminaire light transmissible cover fixing structure according to claim 4, characterized in that, The annular groove is filled with sealant.

6. The explosion-proof luminaire light transmissible cover fixing structure according to claim 1, characterized in that, The side of the pressing ring close to the lamp body forms an inner ring part, the side of the lamp body close to the pressing ring forms an outer ring part, and the inner ring part is arranged extending into the inner side of the outer ring part.

7. The explosion-proof luminaire light transmissible cover fixing structure according to claim 1, characterized in that, The side of the pressing ring close to the lamp body forms a stepped surface, the stepped surface is arranged outside the inner ring part, and the outer ring part is arranged against the stepped surface.

8. The explosion-proof luminaire light transmissible cover fixing structure according to claim 7, characterized in that, A sealing ring is arranged between the outer ring part and the stepped surface.

9. The explosion-proof luminaire light transmissible cover fixing structure according to claim 8, characterized in that, The side of the light-transmitting cover close to the lamp body forms an annular edge, and the annular edge is arranged in contact with the bottom surface.

10. The explosion-proof luminaire light transmissible cover fixing structure according to claim 1, characterized in that, ​

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