CN213542413U - Upper cover of lamp - Google Patents

Abstract

The utility model discloses an upper cover of lamps and lanterns, including the lamp lid, the lamp lid is disc shape, lamp lid upper end is equipped with outer rib circle, the bank of cells, interior rib circle, the electrical apparatus storehouse is equipped with the fixed column, main strengthening rib and vice strengthening rib, the fixed column is equipped with the fixed orifices, interior rib circle is equipped with domatic to inboard slope, the bank of cells includes outer draw-in groove, the bellying, interior draw-in groove is equipped with the fillet, the bellying is equipped with a plurality of last screw holes of evenly arranging, the lamp lid lower extreme is equipped with the wire storehouse, cross the wire casing, screw hole down, the connecting hole, the extension post, and a plurality of rib, the rib annular distribution is around the lamp lid, the extension post is concentric with last screw hole, the screw hole sets up the border position in the wire storehouse down, the wire storehouse is equipped with the entrance hole. The utility model discloses bulk strength is high, sealing performance is good.

Description

Upper cover of lamp

Technical Field

The utility model belongs to the technical field of at explosion-proof lamp lid and specifically relates to an upper cover of lamps and lanterns is related to.

Background

The explosion-proof lamp is used in dangerous places where combustible gas and dust exist, and can prevent electric arcs, sparks and high temperature possibly generated in the lamp from igniting the combustible gas and dust in the surrounding environment, so that the lamp meets the explosion-proof requirement. Also called explosion-proof lamps and lanterns, explosion-proof light. Different flammable gas mixture environments have different requirements on the explosion-proof grade and the explosion-proof form of the explosion-proof lamp. Classifying according to the protection grade of the shell: in order to prevent dust, solid foreign matters and water from entering the lamp cavity and touching or accumulating on the live-wire component to generate the dangers of flashover, short circuit or damage to electrical insulation and the like, a plurality of shell protection modes play a role in protecting the electrical insulation.

The existing customers need to manufacture an explosion-proof lamp used on a ship, the requirement of the explosion-proof lamp is higher than that of explosion-proof lamps used in families and enterprises, and the structural performance of a common explosion-proof lamp cover cannot meet the requirement of long-term use on the ship. Therefore, a lamp cover with a good structure is needed to be designed.

Disclosure of Invention

The utility model aims to solve the technical problem that an upper cover of lamps and lanterns has set up wire casing, wire storehouse, electrical apparatus storehouse, and outside power wire reachs the electrical apparatus storehouse through crossing wire casing and wire storehouse twice sealed protection after, has better waterproof, dustproof effect.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an upper cover of a lamp comprises a lamp cover, wherein the lamp cover is in a disc shape, an outer rib ring, a groove group, an inner rib ring and an electrical bin are arranged at the upper end of the lamp cover, the electrical bin is provided with a fixing column, a main reinforcing rib and an auxiliary reinforcing rib, the fixing column is provided with a fixing hole, the inner rib ring is provided with a slope surface inclined towards the inner side, the groove group comprises an outer clamping groove, a protruding part and an inner clamping groove, the inner clamping groove is provided with a circular bead, the protruding part is provided with a plurality of upper threaded holes which are uniformly distributed, the lower end of the lamp cover is provided with a wire cabin, a wire passing groove, a lower threaded hole, a connecting hole, an extension column and a plurality of ribs, the ribs are annularly distributed around the lamp cover, the extension column is concentric with the upper threaded holes, the lower threaded hole is arranged at the edge position of the wire cabin, the wire cabin is provided with wire pressing holes, 2 first wire passing holes, 2 second wire, 3 entrance holes, first through hole, second through hole all communicate with the electrical apparatus storehouse, entrance hole and cross the wire casing intercommunication, first through hole and second through hole symmetry set up in wire storehouse both sides, first through hole, second through hole all perpendicular with the entrance hole.

As the utility model discloses further improve: the electric appliance bin is provided with a sealing column, and the sealing column is concentric with the lower threaded hole.

As the utility model discloses further improve: the lower end of the lamp cover is provided with a sealing groove at the edge of the wire bin, and the lower threaded hole is positioned in the sealing groove.

As the utility model discloses further improve: the sealing groove in be equipped with sealed the pad, lamp lid lower extreme be equipped with sealed lid of pad laminating.

As the utility model discloses further improve: the upper threaded hole and the lower threaded hole are both of blind hole structures.

As the utility model discloses further improve: the electrical appliance bin is provided with a first material reducing groove, and the wire bin is provided with a second material reducing groove.

As the utility model discloses further improve: the lamp cover is provided with a heightening column at the edge of the connecting hole.

As the utility model discloses further improve: the extension column is provided with a reinforcing strip.

As the utility model discloses further improve: and the outer clamping groove and the inner clamping groove are both provided with sealing rings.

As the utility model discloses further improve: the lamp cover is made of stainless steel or aluminum alloy.

The utility model has the advantages of high integral strength and good sealing performance; the disc-shaped lamp cover has uniform wall thickness, good integral strength and difficult deformation, and the lamp cover, the lamp shell, the lamp wick and other parts are assembled into the explosion-proof lamp; o-shaped sealing rings can be arranged at the outer clamping groove and the inner clamping groove, so that the lamp cover can be sealed, and rainwater and dust are prevented from entering the electrical appliance bin from the outer rib ring and the inner rib ring; the fillet of the inner clamping groove can play a smooth transition effect, and the deformation caused by the internal stress is reduced; when the lamp cover is assembled with the lamp shell, the slope surface inclined towards the inner side is convenient for the inner rib ring to be smoothly clamped into the lamp shell, and the bolt penetrates through the lamp shell and is screwed into the upper threaded hole at the boss part, so that the lamp cover and the lamp shell can be fixedly connected together; the fixing holes at the fixing columns can be used for fixing electrical components of the electrical appliance bin, and the main reinforcing ribs and the auxiliary reinforcing ribs can increase the structural strength of the electrical appliance bin.

The power supply lead enters the lead bin from the 3 wire inlet holes of the wire passing groove, then enters the interior of the electrical appliance bin from the first wire passing hole and the second wire passing hole of the lead bin, and then is connected with the electrical appliance element; when 3 power supply wires come in from the wire inlet hole, the wires can be switched in the wire bin and then are divided into 4 power supply wires to enter the electrical appliance bin; the wire pressing holes are used for fixedly mounting a wire pressing plate so that the power supply lead is fixed; the wire bin opening part is assembled into the cover, and the screw penetrates through the cover and is screwed into the lower threaded hole, so that the cover is fixed; the connecting hole is used for fixing other small parts; the extension post can seal the upper threaded hole end part, prevents that the rainwater from entering into the electrical apparatus storehouse from the upper threaded hole end part, and the rib can increase the structural strength at the edge of the lower end of the lamp cover, and the extension post and the rib can increase the surface area of the lamp cover and increase the heat dissipation speed.

Drawings

Fig. 1 is a schematic view of the upper end of the present invention;

FIG. 2 is a schematic view of the lower end of the present invention;

fig. 3 is a schematic view of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-3: an upper cover of a lamp comprises a lamp cover 100, the lamp cover 100 is in a disc shape, an outer rib ring 1, a groove group, an inner rib ring 7 and an electrical appliance bin 20 are arranged at the upper end of the lamp cover 100, a fixing column 12, a main reinforcing rib 9 and an auxiliary reinforcing rib 10 are arranged on the electrical appliance bin 20, the fixing column 12 is provided with a fixing hole 11, the inner rib ring 7 is provided with a slope 8 inclined towards the inner side, the groove group comprises an outer clamping groove 2, a protruding part 3 and an inner clamping groove 5, the inner clamping groove 5 is provided with a fillet 6, the protruding part 3 is provided with a plurality of upper threaded holes 4 which are uniformly distributed, a wire guide bin 40, a wire passing groove 30, a lower threaded hole 53, a connecting hole 56, an extension column 59 and a plurality of ribs 58 are arranged at the lower end of the lamp cover 100 in an annular mode, the extension column 59 is concentric with the upper threaded hole 4, the lower threaded hole 53 is arranged at the edge position of the wire guide bin 40, a wire guide, 3 wire inlet holes 51, first wire inlet hole 50, second wire inlet hole 52 all communicate with electrical apparatus storehouse 20, wire inlet hole 51 with cross line groove 30 intercommunication, first wire inlet hole 50 and second wire inlet hole 52 symmetry set up in wire storehouse 40 both sides, first wire inlet hole 50, second wire inlet hole 52 all are perpendicular with wire inlet hole 51.

The electrical cabinet 20 is provided with a sealing column 13, and the sealing column 13 is concentric with the lower threaded hole 53. The sealed post can seal down screw hole tip, prevents that the rainwater from entering into in the electrical apparatus storehouse from screw hole tip down.

The lower end of the lamp cover 100 is provided with a sealing groove 54 at the edge of the wire chamber 40, and the lower threaded hole 53 is located in the sealing groove 54.

A sealing gasket is arranged in the sealing groove 54, and a sealing cover attached to the sealing gasket is arranged at the lower end of the lamp cover 100. The sealing cover is matched with the sealing gasket for use, and then the screw penetrates through the sealing cover and the sealing gasket in sequence and is screwed into the lower threaded hole, so that the sealing cover is fixed, the opening part of the wire bin is sealed, and external rainwater and dust cannot enter the wire bin.

The upper threaded hole 4 and the lower threaded hole 53 are both blind hole structures. Therefore, external rainwater and dust cannot enter the explosion-proof lamp from the upper threaded hole and the lower threaded hole of the lamp cover.

The electrical cabinet 20 is provided with a first relief groove 14, and the wire cabinet 40 is provided with a second relief groove 61. First subtract silo and second and subtract the silo and can subtract light the utility model discloses a weight can also reduce cost.

The lamp cover 100 is provided with a heightening post 57 at the edge of the coupling hole 56. If the depth of connecting hole is too shallow, that corresponding axial wall thickness is thinner, and the connecting hole is twisted the screw back intensity and can be leaded to the connecting hole to burst apart inadequately, has set up behind the thicker increase post, and the intensity of connecting hole periphery is showing and is increasing.

The extended column 59 is provided with a reinforcing bar 60. The reinforcing strips can increase the firmness of the extending column.

The outer clamping groove 2 and the inner clamping groove 5 are both provided with sealing rings. After the double sealing rings are arranged, the sealing effect is better after the lamp cover is connected with the lamp cover of the explosion-proof lamp.

The lamp cover is made of stainless steel or aluminum alloy. The stainless steel or the aluminum alloy is not easy to rust and is not easy to be corroded by seawater, and is particularly suitable for the wet environment on a ship.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The upper cover of the lamp comprises a lamp cover and is characterized in that the lamp cover is in a disc shape, an outer rib ring, a groove group, an inner rib ring and an electrical appliance bin are arranged at the upper end of the lamp cover, the electrical appliance bin is provided with a fixing column, a main reinforcing rib and an auxiliary reinforcing rib, the fixing column is provided with a fixing hole, the inner rib ring is provided with a slope surface inclined towards the inner side, the groove group comprises an outer clamping groove, a protruding part and an inner clamping groove, the inner clamping groove is provided with a circular bead, the protruding part is provided with a plurality of upper threaded holes which are uniformly distributed, the lower end of the lamp cover is provided with a wire cabin, a wire passing groove, a lower threaded hole, a connecting hole, an extension column and a plurality of ribs, the ribs are annularly distributed around the lamp cover, the extension column is concentric with the upper threaded hole, the lower threaded hole is arranged at the edge of the wire cabin, and the wire cabin is provided with wire pressing holes, 2, 2 second through-hole, 3 entrance holes, first through-hole, second through-hole all communicate with the electrical apparatus storehouse, the entrance hole with cross the wire casing intercommunication, first through-hole and second through-hole symmetry set up in wire storehouse both sides, first through-hole, second through-hole all perpendicular with the entrance hole.

2. The upper cover of a lamp as claimed in claim 1, wherein the electrical cabinet is provided with a sealing post, and the sealing post is concentric with the lower threaded hole.

3. The upper cap of claim 1, wherein a sealing groove is formed at the lower end of the lamp cap at the edge of the wire chamber, and the lower threaded hole is formed in the sealing groove.

4. A lamp top cover according to claim 3, wherein a sealing gasket is provided in said sealing groove, and a sealing cover attached to said sealing gasket is provided at a lower end of said lamp cover.

5. The upper cover of a lamp as claimed in claim 1, wherein the upper threaded hole and the lower threaded hole are both blind holes.

6. The top cover of a light fitting of claim 1, wherein said electrical compartment has a first relief channel and said wire compartment has a second relief channel.

7. The upper cover of a lamp as claimed in claim 1, wherein the lamp cover is provided with a raised post at the edge of the connecting hole.

8. The upper cover of a lamp as claimed in claim 1, wherein the extension column is provided with a reinforcing bar.

9. A lamp cover according to claim 1, wherein said outer and inner locking grooves are provided with sealing rings.

10. The upper cover of a lamp as claimed in claim 1, wherein the lamp cover is made of stainless steel or aluminum alloy.

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