CN219713180U - Anti-disassembly lamp housing and illumination lamp - Google Patents

Abstract

The utility model discloses an anti-disassembly lamp housing and a lighting lamp, wherein the anti-disassembly lamp housing comprises a first housing, a second housing, a clamping structure and an anti-disassembly structure, a containing cavity for containing a light source assembly is limited between the first housing and the second housing, the clamping structure is arranged between the first housing and the second housing, the first housing and the second housing rotate along the circumferential direction so as to be clamped mutually, the anti-disassembly structure comprises a stop part arranged on one of the first housing and the second housing, an elastic stop piece is movably connected on the other of the first housing and the second housing, the first housing is provided with a buckling position buckled on the second housing along the up-down direction and a clamping position which rotates along the circumferential direction relative to the second housing and is clamped with the second housing, the elastic stop piece generates elastic deformation and is propped against the stop part, and the elastic stop piece is dislocated with the stop part at the clamping position so as to prevent the first housing from rotating from the clamping position to the buckling position. Compared with the prior art, the assembly is more convenient, safer and more reliable.

Description

Anti-disassembly lamp housing and illumination lamp

Technical Field

The utility model relates to the technical field of illumination, in particular to an anti-disassembly lamp housing and an illumination lamp.

Background

At present, in order to facilitate the installation of various components, especially a light source module, the light source module is installed in a buckle type shell, the buckle type shell is composed of a cover body and a shell body, a clamping hook is usually arranged on the cover body, a clamping hole is arranged on the shell body, the clamping hook and the clamping hole are mutually clamped, so that an upper shell body and a lower shell body are connected together, and the light source module is packaged in a containing cavity jointly defined by the cover body and the shell body. However, such a fastening structure allows a user or other personnel to perform nondestructive detachment by hand or with the aid of a detaching tool (such as a screwdriver), so that there is a safety hidden danger that does not conform to safety regulations and safety regulations cannot be authenticated. In order to meet the requirements of safety regulations, some lighting lamps generally have a light source module arranged in an anti-disassembly structure, and when the lighting lamp is disassembled, the anti-disassembly structure is destroyed to achieve the purpose of disassembling the lamp. And once the anti-disassembly structure is damaged, the whole lamp is damaged and can not be used normally. The existing lamp disassembly prevention structure generally adopts glue spraying, ultrasonic welding, heat induction technology or disassembly prevention screws, and the like, so that the operation needs to be increased, or special jigs and process equipment are used, and more manual operation is needed, so that the cost is increased, and the reject ratio of products is higher.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a disassembly-preventing lamp housing which is convenient to assemble, safe and reliable and a lighting lamp with the disassembly-preventing lamp housing.

To this end, the utility model provides an anti-tamper lamp envelope comprising:

a first housing;

a containing cavity for containing the light source component is defined between the second shell and the first shell;

the clamping structure is arranged between the first shell and the second shell, and is configured to enable the first shell to rotate relative to the second shell along the circumferential direction so as to enable the first shell to be clamped with the second shell;

the anti-disassembly structure comprises a stop part arranged on one of the first shell and the second shell and an elastic stop piece movably connected on the other of the first shell and the second shell and matched with the stop part;

the first shell is provided with a buckling position buckled on the second shell along the up-down direction and a clamping position which rotates along the circumferential direction relative to the second shell and is clamped with the second shell, the elastic stop piece is elastically deformed and is abutted with the stop part at the buckling position, and the elastic stop piece is dislocated with the stop part at the clamping position so as to prevent the first shell from rotating from the clamping position to the buckling position.

As a preferable mode of the present utility model, the engaging structure includes an engaging portion provided on one of the first housing and the second housing, and an engaging portion provided on the other of the first housing and the second housing.

As a preferable mode of the present utility model, the engaging portion includes a clamping groove provided on an inner peripheral wall of the first housing, the engaging portion includes a clamping block provided on an outer peripheral wall of the second housing, and the clamping groove has a notch into which the clamping block is clamped.

As a preferable mode of the present utility model, the card slot is provided around the inner peripheral wall of the first housing.

As a preferable mode of the utility model, the clamping grooves are uniformly provided with a plurality of notches along the circumferential direction, and the outer circumferential wall of the second shell is uniformly provided with a plurality of clamping blocks along the circumferential direction.

As a preferred aspect of the present utility model, the tamper-proof housing includes a limiting structure configured to prevent the first housing from rotating to pass over the engagement position after the clip block is snapped into the clip groove.

As a preferable scheme of the utility model, the limiting structure comprises a limiting groove arranged on the clamping groove and a limiting block arranged on the clamping block and matched with the limiting groove, and after the clamping block is clamped into the clamping groove, the limiting block is in butt joint with the wall of the limiting groove.

As a preferable mode of the utility model, the limit groove and the notch are arranged opposite to each other along the up-down direction.

As a preferred aspect of the present utility model, the stopper is disposed on the first housing, and the elastic stopper is movably connected to the second housing.

As a preferred aspect of the present utility model, the elastic stopper includes a main body, elastic arms connected to opposite sides of the main body, and a pin portion provided at a top of the main body, the second housing is provided with a receiving hole extending in a vertical direction, opposite sides of the receiving hole are provided with support walls, the main body is slidably fitted in the receiving hole, and the elastic arms elastically abut against the support walls.

The utility model also provides a lighting lamp, which comprises a lamp body, wherein the lamp body comprises the anti-disassembly lamp housing and the light source assembly arranged in the accommodating cavity.

As a preferred embodiment of the present utility model, the lighting fixture includes a recessed mounting structure, and the lamp body is rotatably connected to the recessed mounting structure.

As a preferable scheme of the utility model, the embedded mounting structure comprises a surface ring and lamp springs arranged on two opposite sides of the surface ring, wherein rotating holes are formed in two opposite sides of the inner peripheral wall of the surface ring, and rotating shafts matched with the rotating holes are arranged on two opposite sides of the outer peripheral wall of the second shell.

As a preferred aspect of the present utility model, the light source assembly includes a light source board disposed in the first housing, a light emitting element disposed on the light source board, and a light distribution element disposed in the second housing.

Compared with the prior art, the utility model has the following beneficial effects:

the anti-disassembly lamp housing is formed by arranging the first housing, the second housing, the clamping structure and the anti-disassembly structure, a containing cavity for containing the light source assembly is limited between the second housing and the first housing, the clamping structure is arranged between the first housing and the second housing, the clamping structure is configured to enable the first housing to rotate relative to the second housing along the circumferential direction so that the first housing and the second housing are clamped, the anti-disassembly structure comprises a stop part arranged on one of the first housing and the second housing, an elastic stop part movably connected to the other one of the first housing and the second housing and matched with the stop part, the first housing is provided with a buckling position buckled onto the second housing along the up-down direction and a clamping position buckled with the second housing along the circumferential direction relative to the second housing, the elastic stop part generates elastic deformation and is propped against the stop part, and the elastic stop part is dislocated with the stop part to prevent the first housing from rotating from the clamping position to the buckling position. Because the first shell and the second shell adopt a rotary clamping structure, the anti-disassembly lamp has the advantage of convenient assembly compared with the prior anti-disassembly lamp shell which adopts gluing, ultrasonic waves or screw locking and the like; after the first shell is clamped with the second shell, the anti-disassembly structure can prevent the first shell from rotating relative to the second shell and withdrawing, so that an anti-disassembly effect is achieved, the lamp anti-disassembly safety gauge is met, and the safety and reliability are improved. The lighting lamp with the anti-disassembly lamp housing has the corresponding advantages.

Drawings

FIG. 1 is a perspective view of an embodiment of a lighting fixture of the present utility model;

FIG. 2 is an exploded view of an embodiment of a lighting fixture;

FIG. 3 is an exploded view of a lamp body according to an embodiment of the present utility model;

FIG. 4 is a side view of a lamp body according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view taken along line A-A shown in FIG. 4;

FIG. 6 is an exploded view of a lamp housing according to an embodiment of the present utility model;

FIG. 7 is a partial enlarged view at B shown in FIG. 6;

FIG. 8 is a perspective view of a first housing according to an embodiment of the present utility model;

fig. 9 is a schematic diagram of an assembly of a lamp housing (a first housing and a second housing are to be assembled) according to an embodiment of the utility model;

fig. 10 is a second schematic lamp housing assembly diagram (the first housing is in the locked position) according to the embodiment of the utility model;

FIG. 11 is a schematic diagram of a lamp housing assembly according to an embodiment of the present utility model (the first housing is in the clamping position);

wherein the reference numerals are as follows:

100. a lighting fixture; 10. a lamp body; 20. an embedded mounting structure; 1. the lamp housing is prevented from being disassembled; 11. a first housing; 12. a second housing; 121. an accommodation hole; 122. a support wall; 123. a rotating shaft; 124. a first light outlet; 13. a receiving chamber; 14. a clamping structure; 141. an engagement portion; 1411. a clamping groove; 1412. a notch; 142. a snap fit portion; 1421. a clamping block; 15. an anti-disassembly structure; 151. a stop portion; 152. an elastic stopper; 1521. a main body portion; 1522. an elastic arm; 1523. a pin portion; 16. a limit structure; 161. a limit groove; 162. a limiting block; 2. a light source assembly; 21. a light source board; 22. a light emitting element; 23. a light distribution element; 3. a face ring; 31. a rotation hole; 32. the second light outlet; 4. and a lamp spring.

Detailed Description

It is to be understood that, according to the technical solution of the present utility model, those skilled in the art may propose various alternative structural modes and implementation modes without changing the true spirit of the present utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.

The embodiment of the present utility model takes a spotlight as an example, and specifically describes the structural composition and principle of the lighting fixture 100. In alternative other embodiments, the type of lighting fixture 100 is not limited to spot lights, but may be a downlight or other type of fixture, and is not specifically limited, and thus the type of lighting fixture in embodiments of the present utility model should not be understood and limited to a particular type of fixture.

Referring to fig. 1 and 2, a lighting fixture 100 includes a lamp body 10 and a recessed mounting structure 20. The embedded mounting structure 20 is used for embedding and mounting the lamp body 10 on an indoor or outdoor mounting base, and the mounting base can be an indoor ceiling mounting hole, a corridor top wall or an indoor dome, which is not particularly limited.

As shown in fig. 2 and 3, the lamp body 10 is rotatably connected to the embedded mount structure 20. Specifically, the lamp body 10 includes a tamper-proof lamp housing 1 and a light source assembly 2. Wherein the tamper evident envelope 1 comprises a first housing 11 and a second housing 12. A containing cavity 13 for containing the light source assembly 2 is defined between the first shell 11 and the second shell 12, the light source assembly 2 is installed in the containing cavity 13, a first light outlet 124 is arranged at the bottom of the second shell 12, and light rays emitted by the light source assembly 2 are emitted from the first light outlet 124. The embedded mounting structure 20 comprises a face ring 3 and lamp springs 4 arranged on two opposite sides of the face ring 3, rotating holes 31 are formed in two opposite sides of the inner peripheral wall of the face ring 3, rotating shafts 123 matched with the rotating holes 31 are arranged on two opposite sides of the outer peripheral wall of the second shell 12, and the rotating shafts 123 are in rotating fit in the rotating holes 31. The bottom of the surface ring 3 is provided with a second light outlet 32 corresponding to the first light outlet 124, and the light emitted by the light source assembly 2 finally exits from the second light outlet 32. The lamp body 10 and the embedded mounting structure 20 are arranged to be of a rotary connection structure, so that the angle of the lamp body 10 relative to the surface ring 20 can be conveniently adjusted when the illumination lamp 100 is mounted, and the light emitting angle of the illumination lamp 100 can be adjusted, so that the illumination lamp 100 emits light rays towards a certain area. In alternative embodiments, the light body 10 may be configured to be removably coupled or fixedly coupled with the embedded mounting structure 20, without limitation.

As shown in fig. 4 and 5, the light source module 2 includes a light source plate 21 provided in the first housing 11, light emitting elements 22 provided on the light source plate 21, and light distribution elements 23 provided in the second housing 12. Wherein the light source plate 21 may be fixed to the inner top wall of the first housing 11 by means of a light source plate holder, in some alternative embodiments, the light source plate 21 may be fixed to the inner top wall of the first housing 11 directly by means of locking screws or gluing, without providing a light source plate holder. Or, the inner top wall of the first housing 11 may be configured to form a riveting column, and a riveting hole adapted to the riveting column is formed in the light source plate 21, so that the light source plate 21 may be riveted and fixed on the inner top wall of the first housing 11, or, a fastening structure matched with each other may be disposed between the light source plate 21 and the first housing 11, and the light source plate 21 is fastened and connected to the first housing 11 through the fastening structure. Accordingly, the connection structure between the light source plate 21 and the first housing 11 has many forms, and is not particularly limited.

In order to facilitate heat dissipation of the light source board 21, the first housing 11 and the second housing 12 may be made of metal materials, such as aluminum materials, or plastic materials, and are not limited in particular.

The light source board 21 may be made of a PCB board or an aluminum substrate, which is not particularly limited. The light emitting elements 22 may be solid state light emitting devices, such as LED particles, light emitting diodes, SMD light sources, COB light sources, etc., where the number of light sources may be designed to be single, or may be designed to be two or more, and the arrangement manner may be annular, or may be horizontal or longitudinal, or may be arranged along a certain predetermined path, which is not limited in particular. The light distribution element 23 can be a lens or a reflecting cup, for example, the lens can be a condensing lens or a diffusion lens, the reflecting cup can be an electroplating or prism reflecting cup, and the adaptive light distribution element 23 can be selected according to the type of the lamp and the light emitting requirement. The light distribution element 23 may be mounted on the light source plate 21 by screws, adhesion or fastening, or may not use the mounting operations such as the screw locking or adhesion or fastening, and a section of flange may extend inward at the lower end of the second housing 12 as a supporting portion, so that the light distribution element 23 is clamped between the second housing 12 and the light source plate 21, and a plurality of alternative structural forms are mounted in a matching manner between the light distribution element 23 and the light source plate 21, which is not particularly limited.

Referring to fig. 5 and 6, the first housing 11 and the second housing 12 are engaged with each other by an engaging structure 14. The engagement structure 14 is disposed between the first housing 11 and the second housing 12, and the engagement structure 14 is configured such that the first housing 11 rotates relative to the second housing 12 along a circumferential direction so that the first housing 11 and the second housing 12 are engaged.

Specifically, as shown in fig. 7 and 8, the engagement structure 14 includes an engagement portion 141 provided on the first housing 11 and an engagement portion 142 provided on the second housing 12. The engaging portion 141 includes a slot 1411 disposed on an inner peripheral wall of the first housing 11, the engaging portion 142 includes a latch 1421 disposed on an outer peripheral wall of the second housing 12, and the slot 1411 has a notch 1412 for the latch 1421 to be engaged into the slot 1411.

Referring to fig. 9 and 10, the first housing 11 has a fastening position for fastening to the second housing 12 in the up-down direction and a fastening position for rotating circumferentially relative to the second housing 12 and fastening to the second housing 12. In operation, the first housing 11 is moved downward and close to the second housing 12 (or the second housing 12 is moved upward and close to the first housing 11), such that the latch 1421 on the second housing 12 enters the notch 1412 of the latch 1411 on the first housing 11, and the first housing 11 is in the locked position.

Referring to fig. 11, the first housing 11 is then rotated counterclockwise (or clockwise) relative to the second housing 12, so that the clamping block 1421 on the second housing 12 is clamped into the clamping groove 1411 on the first housing 11, and the first housing 11 is at the clamping position at this time, so as to realize mutual clamping between the first housing 11 and the second housing 12.

In other alternative embodiments, the engaging portion 141 and the engaging portion 142 are not limited to the structures of the latch and the latch groove, but may be latch teeth or claws that are engaged with each other, and the installation positions of the engaging portion 141 and the engaging portion 142 may be interchanged, that is, the engaging portion 142 is provided on the first housing 11, and the engaging portion 141 is provided on the second housing 12, which is not particularly limited. Because the first shell 11 and the second shell 12 adopt the structure of rotary clamping, compared with the prior anti-disassembly lamp shell 1, the anti-disassembly lamp shell has the advantage of convenient assembly due to the adoption of gluing, ultrasonic waves or screw locking and the like.

In order to allow the first housing 11 to quickly enter the engagement position so as to be engaged with the second housing 12, the catching groove 1411 is provided around the inner peripheral wall of the first housing 11. The clamping groove 1411 is uniformly provided with a plurality of notches 1412 along the circumferential direction, and the outer circumferential wall of the second housing 12 is uniformly provided with a plurality of clamping blocks 1421 along the circumferential direction. Therefore, when the first housing 11 enters the fastening position, the clamping block 1421 on the second housing 12 can be quickly positioned in the notch 1422 on the first housing 11, the first housing 11 does not need to rotate for a larger stroke along the circumferential direction relative to the second housing 12, or the notch 1422 entering the clamping groove 1421 is laboriously searched, and the two housings are fastened more conveniently and quickly.

In other alternative embodiments, the buckling between the first housing 11 and the second housing 12 is not limited to the arrangement that the first housing 11 is wrapped around the second housing 12, but may be arranged that the first housing 11 is wrapped around the second housing 12, which is not limited in particular.

Referring to fig. 5 and 6 again, after the first housing 11 is in the locking position, the first housing 11 and the second housing 12 are prevented from being separated from the locking by the anti-disassembly structure 15, so as to achieve the anti-disassembly purpose. The anti-disassembly structure 15 comprises a stop part 151 arranged on the first shell 11, and an elastic stop piece 152 movably connected on the second shell 12 and matched with the stop part 151.

Specifically, the stop portion 151 is disposed on the first housing 11, and the elastic stop member 152 is movably connected to the second housing 12. The elastic stopper 152 includes a main body 1521, elastic arms 1522 connected to opposite sides of the main body 1521, and a pin 1523 disposed on the top of the main body 1521, where the second housing 12 is provided with a receiving hole 121 extending in the up-down direction, opposite sides of the receiving hole 121 are provided with supporting walls 122, the main body 1521 is slidably engaged in the receiving hole 121, and the elastic arms 1522 elastically abut against the supporting walls 122.

Referring to fig. 9 and 10, in the engaged position of the first housing 11, the elastic stopper 152 is elastically deformed and abuts against the stopper 151. At this time, the pin portion 1523 of the elastic stopper 152 abuts against the stopper portion 151, the elastic arms 1522 on both sides of the elastic stopper 152 are compressed to generate elastic deformation, and the main body portion 1521 of the elastic stopper 152 is retracted into the accommodating hole 121 of the second housing 12.

Referring to fig. 11, after the first housing 11 is in the engaged position, the first housing 11 is rotated in a counterclockwise direction (or may be configured to be clockwise), and the first housing 11 is rotated from the engaged position to the engaged position engaged with the second housing 12. After the first housing 11 is at the locking position, the elastic stop member 152 is dislocated from the stop portion 151 to prevent the first housing 11 from rotating from the locking position to the locking position. Specifically, the pin portion 1523 of the elastic stopper 152 passes over the stopper portion 151 and is offset from the stopper portion 151. The elastic arms 1522 on both sides of the elastic stopper 152 are restored to elastic deformation, and the main body portion 1521 of the elastic stopper 152 partially protrudes from the inside of the accommodation hole 121 of the second housing 12.

In some alternative embodiments, the setting positions of the stop 151 and the elastic stop 152 may be interchanged, i.e. the elastic stop 152 may be provided on the first housing 11 and the stop 151 may be provided on the second housing 12; or the elastic stopper 152 may be movably connected to the second housing 12, for example, elastically connected, and the portion of the elastic stopper 152 that performs elastic deformation may not be the elastic arms 1522 provided on both sides of the main body 1521, but may also be a spring plate, a spring, or the like, so long as the elastic stopper 152 can freely generate a telescopic movement after the first housing 11 rotates from the fastening position to the fastening position, so as to implement dislocation or fastening with the stopper 151, which is not particularly limited.

After the first shell 11 and the second shell 12 are clamped, the anti-disassembly structure 15 can prevent the first shell 11 from rotating relative to the second shell 12 and withdrawing, so that an anti-disassembly effect is achieved, the lamp anti-disassembly safety rule is met, and safety and reliability are improved. The lighting fixture 100 with the tamper-proof lamp housing 1 also has corresponding advantages.

Referring to fig. 5 and 8, after the clamping groove 1411 on the first housing 11 is disposed around the first housing 11, in order to avoid the disadvantage that the first housing 11 in the clamping position continues to rotate in the circumferential direction and passes over the clamping position, so that the first housing 11 is disengaged from the second housing 12, the anti-disassembly lamp housing includes a limiting structure 16, and the limiting structure 16 is configured to prevent the first housing 11 from continuing to rotate in the circumferential direction relative to the second housing 12 after the clamping block 1421 is clamped into the clamping groove 1411.

As shown in fig. 10 and 11, the limiting structure 16 includes a limiting groove 161 disposed on the clamping groove 1411, and a limiting block 162 disposed on the clamping block 1421 and matched with the limiting groove 161. The limiting groove 161 and the notch 1412 are disposed opposite to each other in the up-down direction.

When the first housing 11 is at the fastening position, the fastening block 1421 is fastened into the fastening groove 1411, and at the same time, the limiting block 162 enters the limiting groove 161. After the first housing 11 rotates from the fastening position to the fastening position where the first housing 12 is fastened, the stopper 162 abuts against the groove wall of the limiting groove 161 to limit. At this time, the limiting structure 16 and the anti-disassembling structure 15 form an interlocking, so that the first housing 11 cannot continue to rotate and pass over the clamping position along the circumferential direction relative to the second housing 12, and cannot rotate from the clamping position and return to the buckling position.

In other alternative embodiments, the setting positions of the limiting groove 161 and the limiting block 162 may be interchanged, that is, the limiting groove 161 may be disposed on the second housing 12, the limiting block 162 may be disposed on the first housing 11, and the limiting groove and the limiting block are not limited to be used for limiting, but may be other limiting structures, such as a fastening structure, a claw structure, a dislocation structure, and the like; of course, the limit groove 161 may not be disposed around the first housing 11, that is, the disposition of the limit structure 16 is not necessary, and is not particularly limited.

In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms upper, lower, top, bottom, inner, outer, circumferential, clockwise, counterclockwise, relative, etc. refer to the orientation or positional relationship as shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that the terms first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated unless otherwise explicitly specified and defined. Thus, a feature defining a first or second may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, a plurality means two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms mounted, connected, and connected should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scope of the present utility model is not limited to the above description, and those skilled in the art may make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present utility model, and these changes and modifications should be included in the scope of the present utility model.

Claims (14)

1. An anti-tamper lamp housing, comprising:

a first housing (11);

a second housing (12) and the first housing (11) define therebetween a receiving chamber (13) for receiving the light source assembly (2);

the clamping structure (14) is arranged between the first shell (11) and the second shell (12), and the clamping structure (14) is configured to enable the first shell (11) to rotate relative to the second shell (12) along the circumferential direction so that the first shell (11) is clamped with the second shell (12);

the anti-disassembly structure (15) comprises a stop part (151) arranged on one of the first shell (11) and the second shell (12), and an elastic stop piece (152) movably connected on the other of the first shell (11) and the second shell (12) and matched with the stop part (151);

the first housing (11) has a fastening position fastened to the second housing (12) in the up-down direction and a fastening position rotated in the circumferential direction relative to the second housing (12) and fastened to the second housing (12), wherein the elastic stopper (152) is elastically deformed and abuts against the stopper (151) in the fastening position, and the elastic stopper (152) is dislocated from the stopper (151) to prevent the first housing (11) from rotating from the fastening position to the fastening position.

2. The tamper-evident lamp housing of claim 1, wherein: the engagement structure (14) comprises an engagement portion (141) provided on one of the first housing (11) and the second housing (12), and an engagement mating portion (142) provided on the other of the first housing (11) and the second housing (12).

3. The tamper-evident lamp envelope of claim 2, wherein: the clamping portion (141) comprises a clamping groove (1411) formed in the inner peripheral wall of the first shell (11), the clamping matching portion (142) comprises a clamping block (1421) formed in the outer peripheral wall of the second shell (12), and the clamping groove (1411) is provided with a notch (1412) for the clamping block (1421) to be clamped into the clamping groove (1411).

4. The tamper-evident lamp housing of claim 3, wherein: the clamping groove (1411) is arranged around the inner peripheral wall of the first shell (11).

5. The tamper-evident lamp housing of claim 4, wherein: the clamping grooves (1411) are uniformly provided with a plurality of notches (1412) along the circumferential direction, and the outer circumferential wall of the second shell (12) is uniformly provided with a plurality of clamping blocks (1421) along the circumferential direction.

6. The tamper-evident lamp housing of claim 4, wherein: the tamper evident envelope comprises a limit structure (16), the limit structure (16) being configured to prevent the first housing (11) from rotating beyond the clamping position after the clamping block (1421) is clamped into the clamping groove (1411).

7. The tamper-evident lamp housing of claim 6, wherein: the limiting structure (16) comprises a limiting groove (161) arranged on the clamping groove (1411), and a limiting block (162) arranged on the clamping block (1421) and matched with the limiting groove (161), wherein after the clamping block (1421) is clamped into the clamping groove (1411), the limiting block (162) is in butt joint with the groove wall of the limiting groove (161) to limit.

8. The tamper-evident lamp housing of claim 7, wherein: the limit groove (161) and the notch (1412) are arranged opposite to each other along the up-down direction.

9. The tamper-evident lamp envelope of any one of claims 1 to 8, wherein: the stop part (151) is arranged on the first shell (11), and the elastic stop part (152) is movably connected on the second shell (12).

10. The tamper-evident lamp housing of claim 9, wherein: the elastic stop piece (152) comprises a main body part (1521), elastic arms (1522) connected to two opposite sides of the main body part (1521) and a pin part (1523) arranged at the top of the main body part (1521), a containing hole (121) extending along the vertical direction is formed in the second shell (12), supporting walls (122) are arranged on two opposite sides of the containing hole (121), the main body part (1521) is in sliding fit in the containing hole (121), and the elastic arms (1522) are elastically abutted against the supporting walls (122).

11. A lighting fixture comprising a lamp body (10), characterized in that: the lamp body (10) comprises the anti-dismantling lamp housing according to any one of claims 1 to 10 and a light source assembly (2) arranged in the accommodating cavity (13).

12. A lighting fixture as recited in claim 11, wherein: the lighting lamp comprises a built-in mounting structure (20), and the lamp body (10) is rotationally connected with the built-in mounting structure (20).

13. A lighting fixture as recited in claim 12, wherein: the embedded mounting structure (20) comprises a face ring (3) and lamp springs (4) arranged on two opposite sides of the face ring (3), rotating holes (31) are formed in two opposite sides of the inner peripheral wall of the face ring (3), and rotating shafts (123) matched with the rotating holes (31) are arranged on two opposite sides of the outer peripheral wall of the second shell (12).

14. A lighting fixture as recited in claim 11, wherein: the light source assembly (2) comprises a light source plate (21) arranged in the first shell (11), a light emitting element (22) arranged on the light source plate (21) and a light distribution element (23) arranged in the second shell (12).