CN210688106U - Lamp and shell structure thereof - Google Patents

Abstract

The utility model discloses a lamps and lanterns and shell structure thereof, wherein shell structure contains base and lid. The base comprises a first connecting device, the first connecting device comprises an extension arm, a shaft part and a butting part, the shaft part and the butting part are respectively arranged on the outer side surface of the extension arm, and guide grooves are formed at intervals. The cover body comprises a second connecting device which is separately pivoted with the first connecting device. The second connecting device comprises a hook-shaped convex part which is accommodated in the guide groove in a contraposition way. When the cover body rotates relative to the base to a covering position, the arc section of the hook-shaped convex part is positioned in the guide groove. When the cover body rotates and moves to the uncovering position relative to the base, the extending section of the hook-shaped convex part is positioned in the guide groove and abuts against the abutting part, so that the cover body is positioned on the base. When the cover body is detached and separated from the base, the hook-shaped convex part is separated from the guide groove, so that the cover body is detached and separated from the base.

Description

Lamp and shell structure thereof

Technical Field

The utility model relates to a lighting device especially relates to a lamps and lanterns and shell structure thereof.

Background

Nowadays, lighting devices are widely used in various fields and environments to provide required light sources. For example, street lights are widely used as lighting devices for road lighting, and include lamps and light poles. The lamp is detachably arranged at one end of the lamp post, and the other end of the lamp post is fixedly arranged on the ground, so that the lamp can be supported at a high position through the lamp post to provide a lighting source downwards.

Generally, when a lamp of a street lamp is out of order or periodically overhauled, a maintenance worker needs to perform maintenance and disassembly operations. Since the maintenance personnel need to perform the maintenance and dismounting operations of the lamp at a high altitude, the design of the lamp and the housing structure thereof must consider the safety and convenience of the maintenance and dismounting operations.

In the existing street lamp, the housing structure includes a cover and a base, wherein the base is locked to one end of the lamp post, the cover and the base are pivotally connected through a shaft, so that the cover can rotate relative to the base, and the shaft is fixed to the cover or the base by screws or fixing pieces. Therefore, when the lamp fails or the lamp needs periodic maintenance operation, the cover body can be rotated to the uncovering state from the covering state relative to the base, so that maintenance personnel can conveniently inspect and maintain the lamp. When some components of the lamp are out of order and need to be replaced, the cover of the lamp, or the cover and the base of the lamp need to be disassembled for replacing or maintaining the related components.

On the other hand, in the process of disassembling the lamp, the maintenance personnel need to disassemble the screws or the fixing pieces at a high position first, and then the cover body can be removed from the base. However, after the maintenance personnel remove the screws or the fixing pieces, the cover body is in an unfixed state and has a heavy weight, so the cover body is easy to fall off during the dismounting operation, which affects the safety of the operation. In addition, the rotating shaft between the cover and the base of the existing lamp is fixed by a screw locking mode, and the screw is easy to rust after long-term use, so that the difficulty of later maintenance and disassembly and assembly operation is caused.

In view of the above, there is a need to develop an improved lamp and a housing structure thereof to solve the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lamp and shell structure thereof to solve the maintenance and dismouting operation of the well-known technique inconvenient, the activity duration is longer, the security is not enough scheduling problem. The utility model discloses a lamps and lanterns and shell structure thereof can be convenient for maintain with going on of dismouting operation, and can reduce the activity duration and promote the operation security.

To achieve the above object, the present invention provides a housing structure for a lamp, which is suitable for a lamp. The housing structure includes a base and a cover. The base comprises at least one first connecting device. At least one first connecting device comprises an extension arm, a shaft part and an abutting part. The extension arm extends outwardly from a side wall of the base. The shaft part and the abutting part are respectively arranged on the outer side surface of the extension arm, and guide grooves are formed at intervals. The cover body is detachably assembled with the base and comprises at least one second connecting device. The at least one second connecting device is detachably pivoted with the at least one first connecting device. The at least one second connecting device comprises a hook-shaped convex part which extends outwards from the inner side surface of one side wall of the cover body and is aligned and accommodated in the guide groove. The hook-shaped convex part comprises a circular arc section and an extension section. The arc section corresponds to the shaft part, and the extension section is connected with one end of the arc section and is constructed to be abutted against the abutting part. When the cover body is assembled with the base and rotates and moves to a covering position relative to the base, the arc section of the hook-shaped convex part of the at least one second connecting device is positioned in the guide groove and is annularly arranged on at least part of the shaft part. When the cover body is assembled with the base and rotates and moves to the uncovering position relative to the base, the arc section of the hook-shaped convex part of the at least one second connecting device is annularly arranged on at least part of the shaft part, and the extending section is positioned in the guide groove and abuts against the abutting part, so that the cover body is positioned on the base. When the cover body is detached and separated from the base, the arc section of the hook-shaped convex part of at least one second connecting device is detached from the shaft part, and the extension section is detached from the guide groove, so that the second connecting device is separated from the first connecting device, and the cover body is detached and separated from the base.

To achieve the above objects, another aspect of the present invention in a broader sense provides a lamp including a light emitting unit, a circuit assembly and a housing structure. The circuit assembly is electrically connected with the light emitting unit. The housing structure includes a base and a cover. The base comprises at least one first connecting device. At least one first connecting device comprises an extension arm, a shaft part and an abutting part. The extension arm extends outwardly from a side wall of the base. The shaft part and the abutting part are respectively arranged on the outer side surface of the extension arm, and guide grooves are formed at intervals. The cover body is detachably assembled with the base and comprises at least one second connecting device, an accommodating space and an installation part. The at least one second connecting device is detachably pivoted with the at least one first connecting device. The at least one second connecting device comprises a hook-shaped convex part which extends outwards from the inner side surface of one side wall of the cover body and is aligned and accommodated in the guide groove. The hook-shaped convex part comprises a circular arc section and an extension section. The arc section corresponds to the shaft part, and the extension section is connected with one end of the arc section and is constructed to be abutted against the abutting part. The circuit assembly is arranged in the accommodating space of the cover body, and the light-emitting unit is arranged on the mounting part of the cover body. When the cover body is assembled with the base and rotates and moves to a covering position relative to the base, the arc section of the hook-shaped convex part of the at least one second connecting device is positioned in the guide groove and is annularly arranged on at least part of the shaft part. When the cover body is assembled with the base and rotates and moves to the uncovering position relative to the base, the arc section of the hook-shaped convex part of the at least one second connecting device is annularly arranged on at least part of the shaft part, and the extending section is positioned in the guide groove and abuts against the abutting part, so that the cover body is positioned on the base. When the cover body is detached and separated from the base, the arc section of the hook-shaped convex part of at least one second connecting device is detached from the shaft part, and the extension section is detached from the guide groove, so that the second connecting device is separated from the first connecting device, and the cover body is detached and separated from the base.

Drawings

Fig. 1 is a schematic structural diagram of a lamp and a housing structure thereof according to a first embodiment of the present invention.

Fig. 2A is a schematic structural diagram of a base of the housing structure shown in fig. 1.

Fig. 2B is a schematic structural view of the lamp shown in fig. 1 with the base removed.

Fig. 3A is a schematic structural diagram of the housing structure in a closed state according to the first embodiment of the present invention.

Fig. 3B is a schematic structural view of the first connecting device and the second connecting device shown in fig. 3A in a closed state.

Fig. 4A is a schematic structural diagram of the housing structure in an uncapped state according to the first embodiment of the present invention.

Fig. 4B is a schematic structural view of the first connecting device and the second connecting device shown in fig. 4A in an uncapped state.

Fig. 5A is a schematic structural diagram of the housing structure in a disassembled state according to the first embodiment of the present invention.

Fig. 5B is a schematic structural view of the first connecting device and the second connecting device shown in fig. 5A in a disassembled state.

Fig. 6 is a schematic structural view of a first connecting device and a second connecting device of a housing structure according to a second embodiment of the present invention in a closed state.

Fig. 7 is a schematic structural view of the first connecting device and the second connecting device of the housing structure according to the second embodiment of the present invention in an uncapped state.

Fig. 8 is a schematic structural diagram of the first connecting device and the second connecting device of the housing structure in a disassembled state according to the second embodiment of the present invention.

Fig. 9 is a schematic structural view of the lamp shown in fig. 1 applied to a street lamp.

Wherein, the reference numbers:

1. 1 a: shell structure

100: lamp fitting

2: base seat

2 a: side wall

20: first connecting device

21: extension arm

21 a: outer side surface

22: shaft part

23: butting part

24: guide groove

3: cover body

3 a: side wall

30: second connecting device

31: hook-shaped convex part

31 a: arc segment

31 b: extension section

32: opening of the container

33: mounting part

34: containing space

4: light emitting unit

5: circuit assembly

6: lamp stand

7: base seat

Detailed Description

Some exemplary embodiments that embody the features and advantages of the present invention will be described in detail in the description of the later sections. It is to be understood that the invention is capable of modification in various respects, all without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

Referring to fig. 1, 2A and 2B, fig. 1 is a schematic structural diagram of a lamp and a housing structure thereof according to a first embodiment of the present invention, fig. 2A is a schematic structural diagram of a base of the housing structure shown in fig. 1, and fig. 2B is a schematic structural diagram of the lamp shown in fig. 1 with the base removed. In the first embodiment, the lamp 100 includes a housing structure 1, a light-emitting unit 4 and a circuit assembly 5. The housing structure 1 includes a base 2 and a cover 3. The base 2 includes a sidewall 2a and at least one first connecting means 20, such as but not limited to two first connecting means 20. Each first connecting device 20 includes an extension arm 21, a shaft 22 and an abutting portion 23. The extension arm 21 extends outward from the sidewall 2a of the base 2, wherein the extension arm 21 extends outward and upward from the sidewall 2a of the base 2 at a specific angle, but not limited thereto. The shaft 22 and the abutting portion 23 are respectively disposed on the outer side surface 21a of the extension arm 21, and the guide grooves 24 are formed at intervals. In one embodiment, the shaft portion 22 and the abutting portion 23 are respectively protruded from the outer side surface 21a of the extension arm 21, the shaft portion 22 is adjacent to a free end portion of the extension arm 21, and the abutting portion 23 is adjacent to a connection portion between the extension arm 21 and the sidewall 2a of the base 2. The cover 3 is detachably assembled with the base 2, and the cover 3 includes a sidewall 3a and at least one second connecting device 30, such as but not limited to two second connecting devices 30. Each second connecting means 30 is detachably and correspondingly pivotally connected to the first connecting means 20 of the base 2. The second connecting device 30 of the cover 3 includes a hook-shaped protrusion 31, and the hook-shaped protrusion 31 extends from an inner side of the sidewall 3a of the cover 3 and is aligned and received in the guiding groove 24 of the first connecting device 20. The hook-shaped protrusion 31 further includes an arc segment 31a and an extension segment 31b, wherein the extension segment 31b is an arc extension segment, the arc segment 31a corresponds to the shaft 22 of the first connecting device 20, and the extension segment 31b is connected to one end of the arc segment 31a and configured to abut against the abutting portion 23. In the embodiment, the cover 3 further includes an installation portion 33 and an accommodation space 34, wherein when the cover 3 is assembled with the base 2 and covered, the base 2 is aligned and closes the accommodation space 34 of the cover 3, and the installation portion 33 of the cover 3 is exposed out of the base 2. The light emitting unit 4 of the lamp 100 is disposed on the mounting portion 33 of the cover 3, and the circuit assembly 5 is disposed in the accommodating space of the cover 3 and electrically connected to the light emitting unit 4.

Please refer to fig. 3A and 3B, wherein fig. 3A is a schematic structural diagram of a housing structure in a closed state according to a first embodiment of the present invention, and fig. 3B is a schematic structural diagram of a first connecting device and a second connecting device in a closed state of fig. 3A. In the present embodiment, when the cover 3 is assembled with the base 2 and the cover 3 is rotated and moved to a covering position relative to the base 2, the arc segment 31a of the hook-shaped protrusion 31 of the second connecting device 30 of the cover 3 is located in the guide slot 24 of the first connecting device 20 of the base 2 and is annularly disposed on at least a portion of the shaft 22, so that the cover 3 covers and is assembled to the base 2, and at this time, the housing structure 1 is in a covering state. Since the second connecting device 30 of the cover 3 is pivotally connected to and fastened to the first connecting device 20 of the base 2, the housing structure 1 of the lamp 100 can be rotated relative to the base 2 without being fixed to the shaft 22 by an additional locking element, and the cover 3 can be covered and fixed to the base 2 in a closed state, thereby achieving the effects of quick assembly and disassembly, and improving convenience of maintenance and installation.

Please refer to fig. 4A and 4B, wherein fig. 4A is a schematic structural diagram of a housing structure in an uncapped state according to a first embodiment of the present invention, and fig. 4B is a schematic structural diagram of the first connecting device and the second connecting device shown in fig. 4A in the uncapped state. In the present embodiment, when the cover 3 is assembled with the base 2 and the cover 3 is rotated and moved from the covering position to the uncovering position relative to the base 2, the arc segment 31a of the hook-shaped protrusion 31 of the second connecting device 30 of the cover 3 rotates counterclockwise around the shaft 22 of the first connecting device 20 of the base 2, and the arc segment 31a of the hook-shaped protrusion 31 of the second connecting device 30 is continuously disposed around at least a portion of the shaft 22 of the first connecting device 20. At the same time, the extension section 31b of the hook-shaped protrusion 31 moves from the outside of the guiding groove 24 of the extension arm 21 to the abutting part 23 which is located in the guiding groove 24 and abuts against the first connecting device 20. At this time, since the extension 31b of the second connecting device 30 abuts against the abutting portion 23 of the first connecting device 20, when the cover 3 rotates to the uncovering position relative to the base 2, the cover 3 can be positioned on the base 2, so that the housing structure 1 assumes an uncovering state. In this way, when the cover 3 rotates and moves from the covering position to the uncovering position relative to the base 2, the second connecting device 30 of the cover 3 and the first connecting device 20 of the base 2 are pivoted and engaged with each other, so that the cover 3 and the base 2 are not disengaged from each other. In addition, the extension section 31b of the hook-shaped protrusion 31 of the second connecting device 30 of the cover 3 is an arc-shaped structure, and the end of the abutting portion 23 of the first connecting device 20 of the base 2 is an arc-shaped structure, wherein the extension section 31b is an arc-shaped structure matched with the arc-shaped structure of the end of the abutting portion 23, so that when the cover 3 rotates and moves to the uncovering position relative to the base 2, the arc-shaped extension section 31b can abut against and encircle at least a part of the end of the abutting portion 23, thereby achieving the function of buckling the extension section 31b with the abutting portion 23, and further preventing the second connecting device 30 of the cover 3 from being separated from the first connecting device 20 of the base 2 when the cover is uncovered position. Therefore, when the cover 3 and the base 2 of the housing structure 1 of the lamp 100 are rotated from the closed state to the open state, the cover 3 does not need to be positioned on the base 2 or separated from the base 2 and fall off through additional fixing elements or external force, so that maintenance personnel can more easily perform maintenance or disassembly and assembly operations, and meanwhile, the operation time is saved, the dangerous situation that the cover 3 falls off accidentally is avoided, and the operation safety is improved.

Please refer to fig. 5A and 5B, wherein fig. 5A is a schematic structural diagram of a housing structure in a disassembled state according to a first embodiment of the present invention, and fig. 5B is a schematic structural diagram of the first connecting device and the second connecting device shown in fig. 5A in a disassembled state. In this embodiment, when the cover 3 is detached from the base 2, the extension section 31b of the hook-shaped protrusion 31 of the cover 3 slightly rotates clockwise around the abutting portion 23 of the extension arm 21 of the base 2, and the arc section 31a of the hook-shaped protrusion 31 of the cover 3 is detached from the shaft 22 of the extension arm 21 of the base 2. Then, when the arc segment 31a of the hook-shaped protrusion 31 is separated from the shaft 22 of the extension arm 21, the extension segment 31b of the hook-shaped protrusion 31 is separated from the first connecting device 20 along the guiding groove 24, so that the second connecting device 30 and the first connecting device 20 are separated from each other, and the cover 3 and the base 2 are detached from each other. At this time, the housing structure 1 is in the disassembled state. Through the design that the first connecting device 20 of the base 2 and the second connecting device 30 of the cover 3 are pivoted and fastened with each other, if the cover 3 is to be detached from the base 2, the cover 3 at the uncovering position needs to be rotated in a specific manner to detach and separate the cover 3 from the base 2, so that the cover 3 can be prevented from falling off due to operation negligence of maintenance personnel, and the safety of maintenance and dismounting operation is improved.

Referring to fig. 1, 2A and 2B again, in the present embodiment, the cover 3 further includes at least one opening 32, such as but not limited to two openings 32. The opening 32 is disposed on a wall surface of the cover 3, and the opening 32 is disposed on the second connecting device 30, so that when the cover 3 rotates relative to the base 2, the extension arm 21 of the base 2 is not abutted and limited by the wall surface of the cover 3, thereby facilitating the operation between the first connecting device 20 and the second connecting device 30. In the present embodiment, when the cover 3 is to be assembled on the base 2, the first connecting device 20 of the base 2 and the second connecting device 30 of the cover 3 are required to be pivotally connected. At this time, the cover 3 is tilted by a specific angle, and the free end of the extension 31b of the second connecting means 30 of the cover 3 is aligned with the guide groove 24 of the extension 21 of the first connecting means 20 of the base 2. Since the cover 3 has the opening 32, the extension portion 31b of the hook-shaped protrusion 31 of the cover 3 can be temporarily received in the opening 32, so that the extension portion 31b of the extension arm 21 of the base 2 can be movably inserted into the guiding groove 24 of the extension arm 21 of the base 2, and then the first connecting device 20 of the base 2 and the second connecting device 30 of the cover 3 can be pivotally connected through rotation, so as to complete the assembly of the cover 3 and the base 2.

In some embodiments, the width of the guiding groove 24 of the first connecting device 20 is greater than the width of any cross section of the hook-shaped protrusion 31 of the second connecting device 30, so that the hook-shaped protrusion 31 can be movably received in the guiding groove 24, but not limited thereto.

Please refer to fig. 6 to 8, wherein fig. 6 is a schematic structural view of a second embodiment of the present invention, wherein the first connecting device and the second connecting device of the housing structure are in a cover-closed state, fig. 7 is a schematic structural view of a second embodiment of the present invention, wherein the first connecting device and the second connecting device of the housing structure are in a cover-opened state, and fig. 8 is a schematic structural view of a second embodiment of the present invention, wherein the first connecting device and the second connecting device of the housing structure are in a disassembled state. In the second embodiment, the structure of the housing structure 1a is similar to that of the housing structure 1 of the first embodiment shown in fig. 1 to 3B, wherein the same reference numerals denote similar component structures and functions, and are not repeated herein. Unlike the case structure 1 of the first embodiment shown in fig. 1 to 3B, in the present embodiment, the hook-shaped protrusion 31 of the cover 3 includes an arc segment 31a and an extension segment 31B, wherein the extension segment 31B extends outward from one end of the arc segment 31a and is a linear extension segment. As shown in fig. 6, when the cover 3 of the housing structure 1a is in the covering position relative to the base 2, the arc segment 31a of the hook-shaped protrusion 31 of the second connecting device 30 of the cover 3 is located in the guide groove 24 of the first connecting device 20 of the base 2 and is annularly disposed on at least a part of the shaft portion 22, and the extension segment 31b of the hook-shaped protrusion 31 is located outside the guide groove 24, so that the cover 3 covers and is assembled to the base 2. As shown in fig. 7, when the cover 3 is rotated to the open position relative to the base 2, the arc segment 31a of the hook-shaped protrusion 31 of the second connecting device 30 of the cover 3 rotates counterclockwise around the shaft 22 of the first connecting device 20 of the base 2, and the arc segment 31a of the hook-shaped protrusion 31 of the second connecting device 30 is continuously provided around at least a portion of the shaft 22 of the first connecting device 20. Meanwhile, the extension section 31b of the hook-shaped protrusion 31 moves from the outside of the guide groove 24 of the extension arm 21 to be located in the guide groove 24 and abuts against the abutting portion 23, so that the cover 3 is located on the base 2 at the uncovering position, and the shell structure 1a is in an uncovering state. When the cover 3 and the base 2 of the housing structure 1a of the lamp 100 are rotated from the closed state to the open state, the cover 3 is not required to be positioned on the base 2 or to be prevented from falling off from the base 2 by additional fixing elements or external force, so that maintenance personnel can more easily perform maintenance or disassembly and assembly operations, meanwhile, the operation time is saved, the dangerous situation that the cover 3 accidentally falls off is also avoided, and the operation safety is improved. As shown in fig. 8, when the cover 3 is detached from the base 2, the hook-shaped protrusion 31 of the second connecting device 30 is pulled outward along the extending direction of the extension 31b, so that the arc 31a of the hook-shaped protrusion 31 is detached from the shaft 22 of the first connecting device 20, and the extension 31b is also detached from the guide groove 24, so that the cover 3 is detached from the base 2, and the housing structure 1a is in a detached state. The design that the first connecting device 20 of the base 2 and the second connecting device 30 of the cover 3 are pivoted and fastened with each other, if the cover 3 is to be detached from the base 2, the cover 3 at the uncovering position needs to be rotated in a specific manner to detach and separate the cover 3 from the base 2, so that the cover 3 can be prevented from falling off due to operation negligence of maintenance personnel, and the safety of maintenance and dismounting operation is further improved.

In some embodiments, two first connecting means 20 extend outwardly and upwardly from the same sidewall 2a of the base 2 at a specific oblique angle, and the two first connecting means 20 are spaced apart from each other, parallel to each other, and symmetrically arranged. Two second connecting means 30 are provided extending outwardly from each inner surface of the two opposite side walls of the cover 3 and correspond to and are pivotally connected to the two first connecting means 20, respectively. The structure, function and operation of each first connecting device 20 and each second connecting device 30 are similar to those of the previous embodiments, and are not described herein again.

Fig. 9 is a schematic structural view of the lamp shown in fig. 1 applied to a street lamp. As shown in fig. 9, the lamp 100 of the present invention is applied to a street lamp, but not limited thereto. The luminaire comprises a lamp post 6 and a base 7. The base 2 of the lamp 100 is sleeved and locked at one end of the lamp post 6, and the other end of the lamp post 6 is connected to the base 7 and is fixed on a ground or a wall surface through the base 7. According to the utility model discloses a conceive, because lamps and lanterns 100 pass through the support of lamp pole 6 and can provide the illumination downwards in the eminence, consequently base 2 through housing structure 1 of lamps and lanterns 100 sets firmly in lamp pole 6, and housing structure 1's lid 3 can be relatively 2 rotatory transform in the lid close, state such as uncap and dismantlement, and lid 3 can not drop under the state of uncapping, can make lid 3 and base 2's equipment and dismantlement realize with exempting from the instrument, in order to reach the convenience that promotes maintenance and dismouting operation, and can save the activity duration and promote the operation security

To sum up, the utility model provides a lamps and lanterns and shell structure thereof. The base of the shell structure comprises a first connecting device which is provided with an extension arm, a shaft part, a butting part and a guide groove. The cover body of the shell structure comprises a second connecting device which is provided with a hook-shaped convex part. The first connecting device of the base is pivoted and buckled with the second connecting device of the cover body, so that the assembly and disassembly of the cover body and the base can be realized without tools, and the cover body can be changed into states of cover closing, cover opening, disassembly and the like relative to the base, so that the convenience of maintenance and disassembly and assembly operations is improved, the operation time is saved, and the operation safety is improved.

The present invention can be modified by those skilled in the art without departing from the scope of the appended claims.

Claims (12)

1. A shell structure is suitable for a lamp, and is characterized by comprising:

the base comprises at least one first connecting device, wherein the at least one first connecting device comprises an extension arm, a shaft part and a butting part, the extension arm extends outwards from one side wall of the base, the shaft part and the butting part are respectively arranged on one outer side surface of the extension arm, and a guide groove is formed at intervals; and

a cover detachably assembled with the base and including at least one second connecting device, wherein the at least one second connecting device is detachably pivoted with the at least one first connecting device and includes a hook-shaped protrusion extending outward from an inner side of a sidewall of the cover and being accommodated in the guide groove in an aligned manner, the hook-shaped protrusion includes an arc section and an extension section, wherein the arc section corresponds to the shaft portion, and the extension section is connected with one end of the arc section and is configured to abut against the abutting portion;

wherein, when the cover body is assembled with the base and the cover body rotates and moves to a covering position relative to the base, the arc section of the hook-shaped convex part of the at least one second connecting device is positioned in the guide groove and is annularly arranged on at least part of the shaft part, wherein when the cover body is assembled with the base and the cover body rotates and moves to an uncovering position relative to the base, the arc segment of the hook-shaped convex part of the at least one second connecting device is annularly arranged on at least part of the shaft part, and the extending section is positioned in the guide groove and abuts against the abutting part to position the cover body on the base, and when the cover body is detached and separated from the base, the arc section of the hook-shaped convex part of the at least one second connecting device is separated from the shaft part, and the extension section is separated from the guide groove, so that the second connecting device is separated from the first connecting device, and the cover body is detached from the base.

2. The shell structure of claim 1, wherein the extension is an arcuate extension.

3. The shell structure of claim 1, wherein the extension is a linear extension.

4. The housing structure of claim 1, wherein the lamp is a street lamp.

5. The enclosure structure of claim 1 wherein the extension arm extends outwardly and upwardly from the sidewall of the base at an oblique angle.

6. The housing structure of claim 1, wherein the width of the guiding groove is larger than the width of any cross section of the hook-shaped protrusion.

7. The shell structure of claim 1, wherein the shaft portion is disposed adjacent to a free end of the extension arm, and the abutting portion is disposed adjacent to a connection between the extension arm and the sidewall of the base.

8. The housing structure of claim 1, wherein the cover further comprises at least one opening disposed on a wall of the cover and aligned with the second connecting device.

9. The casing structure of claim 1, wherein the cover further comprises a receiving space and a mounting portion, wherein when the cover is assembled with the base and covered, the base is aligned with and closes the receiving space, and the mounting portion is exposed from the base.

10. The casing structure of claim 1, wherein when the cover is assembled with the base and the cover is rotated from the covering position to the uncovering position relative to the base, the arc segment of the hook-shaped protrusion of the cover rotates around the shaft of the base, the arc segment of the hook-shaped protrusion surrounds at least a portion of the shaft, and the extension segment of the hook-shaped protrusion moves from outside the guide slot of the extension arm to be located in the guide slot and abuts against the abutting portion.

11. The casing structure of claim 1, wherein when the cover is detached from the base, the extension section of the hook-shaped protrusion rotates around the abutting portion of the extension arm, so that the arc section of the hook-shaped protrusion is disengaged from the shaft of the extension arm, and the extension section of the hook-shaped protrusion is disengaged from the first connecting device along the guiding groove.

12. A lamp comprises a light emitting unit and a circuit assembly, wherein the circuit assembly is electrically connected with the light emitting unit, and the lamp further comprises:

a housing structure, comprising:

the base comprises at least one first connecting device, wherein the first connecting device comprises an extension arm, a shaft part and a butting part, the extension arm extends outwards from one side wall of the base, the shaft part and the butting part are respectively arranged on one side surface of the extension arm, and a guide groove is formed at intervals; and

a cover detachably assembled with the base and comprising:

at least one second connecting device which is separately pivoted with the first connecting device and comprises a hook-shaped convex part, wherein the hook-shaped convex part extends outwards from an inner side surface of one side wall of the cover body and is oppositely accommodated in the guide groove, and the second connecting device comprises an arc section and an extending section, wherein the arc section corresponds to the shaft part, and the extending section is connected with one end of the arc section and is constructed to be propped against the propping part;

the circuit assembly is arranged in the accommodating space; and

the light emitting unit is arranged on the mounting part;

wherein, when the cover body is assembled with the base and the cover body rotates and moves to a covering position relative to the base, the arc section of the hook-shaped convex part of the second connecting device is positioned in the guide groove and is annularly arranged on at least part of the shaft part, wherein when the cover body is assembled with the base and the cover body rotates and moves to an uncovering position relative to the base, the arc section of the hook-shaped convex part of the second connecting device is annularly arranged on at least part of the shaft part, the extension section is positioned in the guide groove and abuts against the abutting part, so that the cover body is positioned on the base, and when the cover body is detached and separated from the base, the arc section of the hook-shaped convex part of the second connecting device is separated from the shaft part, and the extension section is separated from the guide groove, so that the second connecting device is separated from the first connecting device, and the cover body is detached from the base.

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