CN220892172U - Waterproof construction and lamps and lanterns - Google Patents

Abstract

The utility model relates to a waterproof structure and a lamp, and belongs to the technical field of lighting equipment. The utility model can improve the waterproof performance of the lamp and ensure that the circuit inside the lamp is not easy to have short circuit fault.

Description

Waterproof construction and lamps and lanterns

Technical Field

The application relates to the technical field of lighting equipment, in particular to a waterproof structure and a lamp.

Background

The lamp can realize illumination, and at present, the existing lamp comprises a lamp cap, a power driving module is arranged at the lamp cap, the power driving module is connected with an external power supply through a wire, and a wire outlet power supply wire penetrates out from a lamp cap shell.

The related art described above has the following problems: because there is the clearance between wire outlet hole and the electric wire, outside water is easy to follow the clearance infiltration to lead to the condition that the inside electrical component took place the short circuit, the lamps and lanterns break down, can't throw light on and use, and lamp holder waterproof nature needs to be further improved.

Disclosure of utility model

Aiming at the defects in the prior art, the application provides the waterproof structure and the lamp, which can improve the waterproof performance of the lamp and enable the circuit inside the lamp not to be easy to have short circuit faults.

In a first aspect, the present application provides a waterproof structure, which adopts the following technical scheme:

the utility model provides a waterproof construction, includes waterproof subassembly and wire outlet, waterproof subassembly includes waterproof stopper, the threading chamber has been seted up to waterproof stopper, waterproof stopper is located the threading intracavity and alternates there is the electric wire, the mounting hole has been seted up to wire outlet, waterproof stopper locates mounting hole department.

Through adopting above-mentioned technical scheme, the waterproof stopper of stopper at the wire portion of being qualified for next round of competitions can closely laminate with the wire portion of being qualified for next round of competitions, avoids water to permeate to waterproof stopper top as far as possible through the mounting hole, and the water of wire portion bottom is difficult for permeating to waterproof stopper's top, and then the inside difficult contact with water of lamps and lanterns reduces the inside possibility of taking place the short circuit of lamps and lanterns.

The application further provides that: the waterproof plug comprises a clamping block and a sealing block, a connecting column is fixedly connected between the clamping block and the sealing block, the bottom surface of the clamping block is abutted to the top surface of the wire outlet part, and the top surface of the sealing block is abutted to the bottom surface of the wire outlet part.

Through adopting above-mentioned technical scheme, sealing piece top surface and the butt of wire portion bottom surface can reduce the exposure of mounting hole department, avoids water to get into inside the lamps and lanterns from the mounting hole as far as possible, and fixture block and sealing piece can further strengthen the connection of waterproof stopper and wire portion for waterproof stopper is difficult for coming off from wire portion.

The application further provides that: the fixture block side sets up to the inclined plane, the wire portion is located the mounting hole edge and is provided with the extrusion ring towards the mounting hole inside, the bottom surface edge of extrusion ring sets up to the arc chamfer.

Through adopting above-mentioned technical scheme, the fixture block slides towards line portion top along the extrusion intra-annular side, resumes when leaving the extrusion ring, and the inclined plane can make the fixture block more by extrusion ring extrusion deformation, and arc chamfer can make the fixture block by extrusion ring extrusion time, deformation more smooth and easy.

The application further provides that: the wire outlet part is positioned at the bottom of the mounting hole and is provided with a sealing opening, and the top of the sealing block is plugged at the sealing opening.

Through adopting above-mentioned technical scheme, the stopper is established the opening that the sealing block at the sealing port can seal the mounting hole, makes the mounting hole in more sealed to can make the connection of wire portion and waterproof stopper inseparabler, thereby reduce the water and permeate inside possibility from wire portion bottom.

The application further provides that: and a glue filling groove for filling waterproof glue is formed in the wire outlet part, and the glue filling groove is communicated with the mounting hole.

Through adopting above-mentioned technical scheme, the waterproof glue in the filling tank can also strengthen the leakproofness in the portion of being qualified for next round of competitions when strengthening the connection stability between waterproof stopper and the portion of being qualified for next round of competitions for the next round of competitions, makes water be difficult for contacting the electric wire at waterproof stopper top through the portion of being qualified for next round of competitions.

The application further provides that: the waterproof assembly further comprises a first waterproof sleeve, the first waterproof sleeve penetrates through the threading cavity, and the electric wire penetrates through the first waterproof sleeve.

Through adopting above-mentioned technical scheme, first waterproof cover can make the electric wire reduce the area of contact with waterproof plug, and makes the difficult emergence wearing and tearing of electric wire to the life of extension electric wire can also fix the wire shape of being qualified for the next round of competitions of electric wire, makes the electric wire be difficult for taking place to bend when being qualified for the next round of competitions, reduces the condition that the gap appears in the junction of electric wire and waterproof plug.

The application further provides that: the waterproof plug bottom integrated into one piece has the waterproof cover of second, the line chamber is held in the second waterproof cover seted up, first waterproof cover alternates in holding the line intracavity.

Through adopting above-mentioned technical scheme, the waterproof cover of second has increased waterproof stopper and the area of contact of waterproof cover of first, and then has improved waterproof performance, reduces the water and permeates the inside possibility of lamps and lanterns from the clearance of waterproof cover and waterproof stopper junction.

In a second aspect, the present application provides a technical solution for any one of the above lamps, where the technical solution is as follows:

The lamp comprises the waterproof structure and the lamp cap, wherein the wire outlet part is fixedly connected inside the lamp cap, a driving module is arranged in the lamp cap, and the driving module is electrically connected with an electric wire.

Through adopting above-mentioned technical scheme, drive module's electric wire runs through in waterproof stopper, wire outlet portion and the waterproof cover of second with first waterproof cover and is connected with external power source, can make difficult infiltration in the lamp holder through waterproof construction.

The application further provides that: the lamp also comprises a lamp tube, wherein the lamp cap is provided with an abutting groove matched with one end of the lamp tube in shape and size, one end of the lamp tube is embedded in the abutting groove, and the abutting groove is provided with a waterproof piece;

And/or a mounting plate is arranged in the lamp tube, a mounting bar is arranged in the mounting plate, a mounting groove for mounting the lamp bar is formed in the mounting bar, and an embedded groove embedded with the mounting bar is formed in the lamp cap in a protruding manner in the abutting groove;

And/or, fixed clamping blocks are arranged on two sides of the interior of the lamp cap, two ends of the driving module are inserted into the fixed clamping blocks in a sliding manner, a supporting block is arranged on the bottom surface of the driving module, and the bottom of the supporting block is abutted to the top of the embedded groove.

By adopting the technical scheme, the waterproof piece can prevent water from entering from the joint of the lamp tube and the lamp cap when the lamp tube and the lamp cap are connected, so that the waterproof performance of the lamp is improved; the lamp strip is arranged in the mounting groove and embedded into the embedded groove along with the mounting strip, so that the stability of connection between the lamp cap and the lamp tube is enhanced; the fixed clamp splice can be convenient installation or dismantlement drive module, and drive module can be strengthened with being located lamp holder internal connection's stability to the supporting shoe.

The application is further provided with the L-shaped raised strips along the self extending direction of the mounting plate, the bottom of the mounting plate is provided with the ceiling bracket, the two ends of the ceiling bracket are clamped at the bottoms of the L-shaped raised strips, and the bottoms of the L-shaped raised strips are parallel to the bottoms of the ceiling bracket;

And/or, a fixed groove is formed in one end, far away from the abutting groove, of the lamp cap, a fixed block is arranged at the bottom of the fixed groove, a fixed hole is formed in the fixed block, and a fixed connecting piece is arranged in the fixed hole.

By adopting the technical scheme, the L-shaped raised strips are raised at the bottom of the lamp tube, the ceiling bracket can stably connect the lamp on the external plane through the bolts, the L-shaped raised strips are abutted on the external plane, and the lamp is not easy to fall off while the flatness of the lamp on the plane is maintained; the connection of the lamp and the external plane can be enhanced by using the fixing connecting piece matched with the fixing groove.

In summary, the application has the following beneficial effects:

According to the waterproof plug and the waterproof assembly, the waterproof plug and the wire outlet part are fixed in a plugging manner, and waterproof glue filled into the glue filling groove in the wire outlet part is filled and adhered, so that the waterproof property and the sealing property of the wire outlet part are enhanced; when the electric wires are inserted into the first waterproof plug and penetrate through the waterproof plug, the wire outlet portion and the second waterproof sleeve to be connected with an external power supply, the sealed wire outlet portion and the second waterproof sleeve which increases the contact area between the waterproof plug and the first waterproof sleeve enable water to be difficult to permeate into the electric wires in the lamp from the bottom of the wire outlet portion through the mounting holes, short circuits inside the lamp are avoided as much as possible, and the failure rate of the lamp is reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a lamp in the present application.

Fig. 2 is a schematic diagram of the overall sectional structure of the waterproof structure in the present application.

Fig. 3 is a schematic view of the overall structure of the lamp cap in the present application.

Fig. 4 is a schematic diagram of the overall structure of the lamp tube according to the present application.

FIG. 5 is a schematic view of the structure of the lamp cap and the lamp tube bottom in the present application.

Reference numerals: 1. a waterproof assembly; 10. a waterproof plug; 11. a threading cavity; 101. a clamping block; 102. a closing block; 103. a connecting column; 12. a first waterproof jacket; 13. an electric wire; 14. a second waterproof jacket; 15. a wire accommodating cavity; 2. a wire outlet part; 20. a mounting hole; 22. a pressing ring; 23. arc chamfering; 24. sealing the opening; 25. a glue filling groove; 3. a lamp base; 30. a driving module; 31. fixing the clamping blocks; 32. a support block; 33. an abutment groove; 34. a fixed block; 35. a fixing groove; 36. an embedding groove; 37. a waterproof member; 38. a fixing hole; 4. a lamp tube; 40. a mounting plate; 41. a mounting bar; 42. a mounting groove; 44. an L-shaped raised line; 45. a ceiling bracket.

Detailed Description

The application is described in further detail below with reference to fig. 1 to 5.

The embodiment of the application discloses a waterproof structure. Referring to fig. 1 to 2, a waterproof structure, including waterproof assembly 1 and wire outlet 2, waterproof assembly 1 includes waterproof stopper 10, waterproof stopper 10 is soft rubber, waterproof stopper 10 has seted up threading chamber 11, waterproof stopper 10 is located threading intracavity 11 and alternates there is electric wire 13, wire outlet 2 has seted up mounting hole 20, waterproof stopper 10 stopper locates mounting hole 20 department and mounting hole 20 interference fit, electric wire 13 runs through wire outlet 2 through the threading chamber 11 of waterproof stopper 10 for waterproof stopper 10 that the stopper was established in mounting hole 20 can closely laminate with wire outlet 2, make water difficult follow wire outlet 2 bottom along the top of mounting hole 20 infiltration to waterproof stopper 10, avoid lamps and lanterns inside contact with water as far as possible, reduce the possibility that lamps and lanterns inside short circuit takes place.

Further, the waterproof plug 10 includes fixture block 101 and closing piece 102, fixedly connected with spliced pole 103 between fixture block 101 and the closing piece 102, fixture block 101 bottom surface butt in line portion 2 top surface, closing piece 102 top surface butt in line portion 2 bottom surface, can effectively reduce the condition that the mounting hole 20 department of line portion 2 exposes, and then strengthen waterproof, simultaneously, the fixture block 101 and the closing piece 102 of setting also can strengthen the connection of waterproof plug 10 and line portion 2, can make waterproof plug 10 be difficult for dropping from line portion 2.

Further, the side surface of the clamping block 101 is set to be an inclined surface, the wire outlet portion 2 is located at the edge of the through hole, the extrusion ring 22 is annularly arranged towards the mounting hole 20, the edge of the bottom surface of the extrusion ring 22 is set to be an arc chamfer 23, when the waterproof plug 10 is clamped in the mounting hole 20, the waterproof plug 10 slides from the bottom of the wire outlet portion 2 towards the top surface of the wire outlet portion 2 through the mounting hole 20, when the top surface of the clamping block 101 reaches the extrusion ring 22, the extrusion ring 22 extrudes the clamping block 101 to deform, slides along the inner side surface of the extrusion ring 22 towards the top of the wire outlet portion 2, and when the clamping block 101 leaves the extrusion ring 22, the extrusion ring is restored, so that the waterproof plug 10 is not easy to fall from the wire outlet portion 2, and the arc chamfer 23 enables deformation of the clamping block 101 when being extruded to be smoother.

In addition, the wire outlet part 2 is located at the bottom of the mounting hole 20 and is provided with the sealing opening 24, the top of the sealing block 102 is plugged at the sealing opening 24, the sealing block 102 is in interference fit with the inner wall of the sealing opening 24, and the sealing block 102 can strengthen the connection between the waterproof plug 10 and the inner wall of the wire outlet part 2 and also can strengthen the tightness of the inner part of the wire outlet part 2, so that water is not easy to infiltrate into the wire outlet part 2.

In this embodiment, the wire outlet portion 2 is internally provided with a glue filling groove 25, the glue filling groove 25 is communicated with the mounting hole 20, the glue filling groove 25 is used for filling waterproof glue, and the waterproof glue flows into the glue filling groove 25 and fills the inside of the glue filling groove 25 by injecting the waterproof glue into the mounting hole 20, so that the connection between the waterproof plug 10 and the wire outlet portion 2 is tighter, and the tightness of the inside of the wire outlet portion 2 is enhanced.

Further, the waterproof assembly 1 further comprises a first waterproof sleeve 12, the electric wire 13 is inserted into the first waterproof sleeve 12, the contact area between the electric wire 13 and the waterproof plug 10 is reduced, the electric wire 13 can be protected from being worn as much as possible, the first waterproof sleeve 12 is inserted into the threading cavity 11, the electric wire 13 can penetrate out from the wire outlet part 2 through the threading cavity 11, meanwhile, the material of the first waterproof sleeve 12 can be hard plastic, the wire outlet shape of the electric wire 13 can be fixed, the electric wire 13 is not easy to bend, and the situation that a gap is formed at the joint of the wire 13 and the waterproof plug 10 due to bending when the electric wire 13 is out is reduced.

Further, the waterproof plug 10 bottom surface integrated into one piece has the waterproof cover 14 of second, and line holding chamber 15 has been seted up to the waterproof cover 14 of second, and first waterproof cover 12 alternates in line holding chamber 15, and waterproof cover 14 of second has increased waterproof plug 10 and the waterproof cover 12 area of contact, and then has improved waterproof performance for the difficult clearance infiltration from the junction of water.

The implementation principle of the waterproof structure of the embodiment of the application is as follows: when the waterproof structure is assembled, the waterproof plug 10 is inserted from the bottom of the wire outlet part 2 towards the top surface of the wire outlet part 2 through the mounting hole 20, when the inclined surface of the clamping block 101 contacts the extrusion ring 22, the clamping block 101 is extruded by the extrusion ring 22 to deform, the mounting hole 20 is penetrated out along the extrusion ring 22, the surface of the arc chamfer 23 enables the clamping block 101 to smoothly slide to the top of the wire outlet part 2, the bottom of the clamping block 101 is abutted to the top of the wire outlet part 2, the top of the sealing block 102 is in interference fit with the bottom surface of the wire outlet part 2, the bottom of the wire outlet part 2 is preliminarily sealed, waterproof glue is injected into the glue filling groove 25, the waterproof glue is filled into the glue filling groove 25 to enable the waterproof plug 10 to be fixedly reinforced to the wire outlet part 2, the tightness of the wire outlet part 2 is further enhanced, a good waterproof effect is achieved, and the electric wire 13 in the lamp penetrates through the first waterproof sleeve 12 and is penetrated out through the threading cavity 11, the mounting hole 20 and the wire containing cavity 15;

When the waterproof assembly 1 contacts water, the second waterproof sleeve 14 integrally formed with the waterproof plug 10 enables water to be difficult to penetrate from the gap between the first waterproof sleeve 12 and the joint of the waterproof plug 10, and the water is difficult to enter the lamp by the waterproof plug 10 and the outlet portion 2 sealed by waterproof glue.

The embodiment of the application also discloses a lamp applied to any waterproof structure. Referring to fig. 3, in this embodiment, a lamp includes a lamp cap 3, a wire outlet portion 2 is fixedly connected inside the lamp cap 3, a driving module 30 is disposed in the lamp cap 3, the driving module 30 is electrically connected with an electric wire 13, the electric wire 13 penetrates through a waterproof plug 10, the wire outlet portion 2 and a second waterproof sleeve 14 along with a first waterproof sleeve 12 to be connected with an external power supply, and the waterproof structure can prevent water seepage from occurring in the lamp cap 3 through the wire outlet portion 2 when the lamp cap 3 is fixedly connected.

Referring to fig. 1, 3 and 4, in this embodiment, a lamp further includes a lamp tube 4, the lamp cap 3 is provided with an abutting groove 33 adapted to the shape and size of one end of the lamp tube 4, one end of the lamp tube 4 is embedded in the abutting groove 33 to realize connection with the lamp cap 3, the abutting groove 33 connected with the lamp tube 4 is provided with a waterproof piece 37, the waterproof piece 37 is annularly arranged on the inner wall of the abutting groove 33, in this embodiment, the waterproof piece 37 is a rubber ring, the lamp tube 4 is embedded in the abutting groove 33 to enable plug connection with the waterproof piece 37 on the inner wall of the abutting groove 33, so that the tightness of the joint of the lamp tube 4 and the lamp cap 3 is enhanced, and thus waterproof is realized; in another embodiment, the waterproof piece 37 is optionally waterproof glue, and the waterproof glue is injected into the abutting groove 33 after being melted, so as to be embedded into the lamp tube 4, so that the lamp cap 3 and the lamp tube 4 are connected;

The mounting plate 40 is fixedly connected in the lamp tube 4, the mounting plate 40 is integrally formed with the mounting bar 41, the mounting bar 41 is provided with the mounting groove 42, the mounting groove 42 is used for mounting the lamp bar, the lamp bar is embedded into the mounting groove 42, the lamp holder 3 is located in the abutting groove 33, the embedded groove 36 embedded with the mounting bar 41 is formed in a protruding mode, after the mounting bar 41 is embedded into the embedded groove 36, one end of the lamp bar is located in the embedded groove 36, and the mounting stability of the lamp bar is improved.

The inside both sides integrated into one piece of lamp holder 3 has fixed clamp splice 31, and drive module 30 both ends slip is interluded in fixed clamp splice 31, and the drive module 30 of being convenient for install or dismantle, drive module 30 bottom surface fixedly connected with supporting shoe 32, supporting shoe 32 bottom butt in embedded groove 36 top can strengthen the stability that drive module 30 is located lamp holder 3 inside.

Referring to fig. 1 and 5, in the present embodiment, an L-shaped protruding strip 44 is integrally formed on the mounting plate 40 along the extending direction thereof, a ceiling bracket is provided at the bottom of the mounting plate 40, two ends of the ceiling bracket 45 are clamped at the bottom of the L-shaped protruding strip 44, the ceiling bracket 45 can fixedly connect the lamp to an external plane through bolts, and the bottom of the L-shaped protruding strip 44 is parallel to and abuts against the bottom of the ceiling bracket 45, so as to maintain the flatness of the lamp fixed on the external plane;

The fixed slot 35 is formed at one end of the lamp cap 3 far away from the abutting slot 33, the fixed block 34 is integrally formed at the bottom of the fixed slot 35, the fixed block 34 is provided with the fixed hole 38, the fixed block 34 is positioned in the fixed hole 38 and is provided with the fixed connecting piece matched with the fixed hole 38, and the connection between the lamp and the external plane can be enhanced through the fixed connecting piece, in the embodiment, the fixed connecting piece is a bolt; in another embodiment, the fixed connection may be selected as a suction cup.

The implementation principle of the lamp provided by the embodiment of the application is as follows: when the internal structure of the lamp cap 3 is installed, the two sides of the driving module 30 are connected with the fixed clamping blocks 31 in a sliding and penetrating way, the supporting blocks 32 are abutted to the top of the embedded groove 36 to increase the supporting points of the driving module 30, and the electric wires 13 on the driving module 30 penetrate through the waterproof plug 10, the wire outlet part 2 and the second waterproof sleeve 14 along with the first waterproof sleeve 12 and are connected with an external power supply;

When the internal structure of the lamp tube 4 is installed, the lamp bar is embedded in the installation groove 42, one end of the lamp tube 4 is embedded in the abutting groove 33 of the lamp cap 3, and is plugged with the rubber ring in the abutting groove 33, so that the lamp tube 4 is connected with the lamp cap 3, and the lamp bar is embedded in the embedding groove 36;

When the lamp is fixed, the ceiling bracket 45 is fixedly connected to the external plane, the bottom of the L-shaped convex strip 44 is abutted to the external plane, and then a fixed connecting piece is arranged in the fixed groove 35 and is connected to the external plane, so that the connection between the lamp and the external plane is enhanced.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. The utility model provides a waterproof construction, its characterized in that, includes waterproof subassembly (1) and wire portion (2), waterproof subassembly (1) are including waterproof stopper (10), threading chamber (11) have been seted up to waterproof stopper (10), waterproof stopper (10) are located and alternate in threading chamber (11) have electric wire (13), mounting hole (20) have been seted up to wire portion (2), waterproof stopper (10) stopper locates mounting hole (20) department.

2. The waterproof structure according to claim 1, wherein the waterproof plug (10) comprises a clamping block (101) and a sealing block (102), a connecting column (103) is fixedly connected between the clamping block (101) and the sealing block (102), the bottom surface of the clamping block (101) is abutted to the top surface of the wire outlet portion (2), and the top surface of the sealing block (102) is abutted to the bottom surface of the wire outlet portion (2).

3. The waterproof structure according to claim 2, wherein the side surface of the clamping block (101) is provided with an inclined surface, the edge of the wire outlet portion (2) located in the mounting hole (20) is provided with a squeezing ring (22) towards the inside of the mounting hole (20), and the edge of the bottom surface of the squeezing ring (22) is provided with an arc chamfer (23).

4. The waterproof structure according to claim 2, wherein the wire outlet portion (2) is provided with a sealing opening (24) at the bottom of the mounting hole (20), and the top of the sealing block (102) is plugged at the sealing opening (24).

5. The waterproof structure according to claim 2, wherein a glue filling groove (25) for filling waterproof glue is formed in the wire outlet portion (2), and the glue filling groove (25) is communicated with the mounting hole (20).

6. A waterproof structure according to claim 1, wherein the waterproof assembly (1) further comprises a first waterproof sleeve (12), the first waterproof sleeve (12) penetrates through the threading cavity (11), and the electric wire (13) penetrates through the first waterproof sleeve (12).

7. The waterproof structure according to claim 6, wherein a second waterproof sleeve (14) is integrally formed at the bottom of the waterproof plug (10), the second waterproof sleeve (14) is provided with a wire containing cavity (15), and the first waterproof sleeve (12) is inserted into the wire containing cavity (15).

8. A lamp, characterized by comprising the waterproof structure of any one of claims 1-7 and a lamp cap (3), wherein the wire outlet part (2) is fixedly connected inside the lamp cap (3), a driving module (30) is arranged in the lamp cap (3), and the driving module (30) is electrically connected with an electric wire (13).

9. A lamp as claimed in claim 8, further comprising a lamp tube (4), wherein the lamp cap (3) is provided with an abutting groove (33) which is matched with one end of the lamp tube (4) in shape and size, one end of the lamp tube (4) is embedded in the abutting groove (33), and the abutting groove (33) is provided with a waterproof piece (37);

And/or, a mounting plate (40) is arranged in the lamp tube (4), a mounting bar (41) is arranged in the mounting plate (40), a mounting groove (42) for mounting the lamp bar is formed in the mounting bar (41), and an embedded groove (36) embedded with the mounting bar (41) is formed in the lamp cap (3) in the abutting groove (33) in a protruding mode;

And/or, fixed clamping blocks (31) are arranged on two sides of the interior of the lamp cap (3), two ends of the driving module (30) are inserted into the fixed clamping blocks (31) in a sliding mode, a supporting block (32) is arranged on the bottom surface of the driving module (30), and the bottom of the supporting block (32) is abutted to the top of the embedded groove (36).

10. The lamp as claimed in claim 9, wherein the mounting plate (40) is provided with an L-shaped protruding strip (44) along the self extending direction, the bottom of the mounting plate (40) is clamped with a ceiling bracket (45), two ends of the ceiling bracket (45) are fixedly connected to the bottom of the L-shaped protruding strip (44), and the bottom of the L-shaped protruding strip (44) is parallel to the bottom of the ceiling bracket (45);

And/or, fixed slot (35) has been seted up to lamp holder (3) one end of keeping away from butt groove (33), lamp holder (3) are located fixed slot (35) bottom and are provided with fixed block (34), fixed hole (38) have been seted up to fixed block (34), fixed block (34) are located fixed hole (38) and are provided with fixed connection spare.