CN213334237U - Connection structure and lighting device - Google Patents

Abstract

The utility model discloses a connection structure and lighting device. The connecting structure can press the connector from the first bearing part to the height limiting part along the first direction, so that in the process that the connector enters the connecting seat along the first direction, the free end of the guide elastic part interacts with the guide part of the connecting seat to drive the connector to rotate, the first bearing part is positioned between the guide inclined plane and the second bearing part and is abutted against the second bearing part so as to prevent the connector from being separated from the connecting seat, meanwhile, the free end of the guide elastic part is still abutted against the guide part of the connecting seat and bears the elastic force from the height limiting part to the first bearing part, the component force of the elastic force is opposite to the abutting force of the second bearing part to the first bearing part, therefore, the connector can be limited and fixed in the connecting seat only by applying the thrust from the first bearing part to the height limiting part without leaving large-area fingerprints or scratches on the connector, and detaching the connector from the connecting seat.

Description

Connection structure and lighting device

Technical Field

The application relates to the technical field of lighting, especially, relate to a connection structure and lighting device.

Background

In most lighting devices on the market, in order to connect two parts or modules (for example, a reflector and two parts of a lamp housing), the connection is usually performed by means of screws. However, the screw connection method requires the installation and disassembly of common tools, and is inconvenient to assemble and maintain. For this purpose, two parts or modules can be connected by means of an up-and-down snap or a swivel snap.

However, the upper and lower clips are difficult to detach because of no force application point, and the rotating clip requires a large friction force, so that a large area of fingerprints or scratches are easily left on the parts by the person who detaches and attaches the clips.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the upper and lower buckle or the rotary buckle are inconvenient and cause large-area pollution to the part, the application provides a connection structure and a lighting device.

The utility model provides a connecting structure, which comprises a connecting head and a connecting seat which are connected with each other;

the connector comprises a first connecting surface, a first connecting assembly is arranged on the first connecting surface, and the first connecting assembly comprises a first bearing part, a guiding elastic part, a height limiting part and a rotation stopping part which are sequentially arranged along a first direction; the guide elastic part comprises a fixed end and a free end, and the fixed end is far away from the height limiting part relative to the free end; the rotation stopping part is arranged between the height limiting part and the guiding elastic part in the direction perpendicular to the first direction;

the connecting seat comprises a second connecting surface, a second connecting assembly is arranged on the second connecting surface, and the second connecting assembly comprises a second bearing part, a guide part or a movable space and a limiting part which are sequentially arranged along the first direction; the guide part is provided with a guide inclined plane, the guide inclined plane faces the movable space and is obliquely arranged towards the second bearing part, and a distance is kept between the guide inclined plane and the limiting part along a direction perpendicular to the first direction;

the first connecting surface and the second connecting surface are arranged oppositely, the limiting portion is arranged between the guide inclined surface and the rotation stopping portion and is abutted to the rotation stopping portion in the direction perpendicular to the first direction, the free end of the guide elastic portion is abutted to the guide inclined surface and deforms towards the direction of the height limiting portion, and the first bearing portion is arranged between the guide inclined surface and the second bearing portion and is abutted to the second bearing portion in the first direction.

In the above connection structure, the extending direction from the fixed end to the free end passes through the first bearing part, the second bearing part and the guide slope.

In the above connection structure, the second connection surface surrounds the first connection surface; or the first connection face surrounds the second connection face.

In the above connection structure, along a direction perpendicular to the first direction, at least two first connection assemblies are disposed on the first connection surface, and at least two second connection assemblies are disposed on the second connection surface.

In the connecting structure, at least part of the connector is accommodated in the connecting seat.

In the above connection structure, the guiding elastic part is made of a plastic elastic member or a metal elastic member.

In the above connection structure, one of the first bearing part and the second bearing part is a bearing block, and the other is a bearing hook, and the bearing block abuts against the notch of the bearing hook.

In the above connection structure, the connector is a reflector, and the connection seat is a lamp housing; the light outlet of the reflector is in the same direction as the opening of the lamp shell, the lamp shell is provided with an accommodating space, and the reflector is arranged in the accommodating space; compared with the height limiting part, the first bearing part is arranged close to the light outlet of the reflector; compare spacing portion, the second bearing part is close to the opening setting of lamps and lanterns casing.

In the connection structure, the connectors are integrally arranged.

The utility model provides a lighting device, include as above arbitrary connection structure.

The utility model discloses an above-mentioned at least one technical scheme can reach following beneficial effect:

in the connection structure of the utility model, the first connection component on the connector is connected with the second connection component of the connecting seat, the connector can be pressed from the first bearing part to the height-limiting part along the first direction, so that in the process that the connector enters the connecting seat along the first direction, the free end of the guiding elastic part can generate deformation under the action of the guiding part of the connecting seat to drive the connector to rotate along the direction vertical to the first direction, and further the first bearing part is arranged between the guiding inclined plane and the second bearing part and is abutted against the second bearing part to prevent the connector from being separated from the connecting seat, meanwhile, the free end of the guiding elastic part is still abutted against the guiding part of the connecting seat, the guiding elastic part bears the elastic force from the height-limiting part to the first bearing part, the component direction of the elastic force is opposite to the abutting force of the second bearing part to the first bearing part, therefore, the connector can be limited and fixed in the connecting seat and detached from the connecting seat only by applying the thrust from the first bearing part to the height limiting part on the connector without leaving large-area fingerprints or scratches on the connector.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a connector provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of the first connecting element disposed on the first connecting surface in FIG. 1;

fig. 3 is a schematic structural view of a connection seat provided in embodiment 2 of the present invention;

FIG. 4 is an enlarged fragmentary view of the second connector assembly of FIG. 3 disposed on the second connector face;

fig. 5 is a schematic view illustrating a connecting head of the connecting structure according to embodiment 3 of the present invention being pushed upward into a connecting seat;

fig. 6 is a schematic view of the guiding portion beginning to deform after the connecting head is further pushed into the connecting seat relative to fig. 5;

FIG. 7 is a schematic view of the connector shown in FIG. 6 being rotated relative to the connecting base and being completely installed;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

fig. 9 is a schematic view of the connector base in fig. 7, wherein the connector is detached from the connector base and further pushed into the connector base;

fig. 10 is a schematic view of the connection head rotating relative to the connection base on the basis of fig. 9;

fig. 11 is a schematic view illustrating the base connector of fig. 10 being separated from the connecting seat;

fig. 12 is a schematic view of the connector shown in fig. 11 after the connector is detached from the connector holder.

Description of reference numerals:

100-a connector;

10-a first connection face; 20-a first end face; 30-a second end face; 40-a first connection assembly; 41-a first carrier part; 42-a guide elastic part; 421-fixed end; 422-free end; 43-height limiter; 44-rotation stop part;

200-a connecting seat;

210-a second connection face; 220-a third end face; 230-a fourth end face; 240-a second connection assembly; 241-a second carrier part; 242-a guide; 2421-guide ramp; 2422-space limiting surface; 243-activity space; 244-a stop.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Herein, back-to-back includes generally facing away from each other or completely facing away from each other; the orientation may be a front orientation or an oblique orientation as long as the orientation is not a back orientation; the relative arrangement can be positive relative or relative arrangement with mutual dislocation; extending from one place to another may refer to the general direction of extension, not the absolute direction; the parallelism may be absolutely parallel or substantially parallel, and the perpendicularity may be absolutely perpendicular or substantially perpendicular.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 1 and 2, an embodiment of the present invention provides a connector 100 for connecting with a connecting seat 200, the connector 100 includes a first connecting surface 10, a first connecting assembly 40 is disposed on the first connecting surface 10, and the first connecting assembly 40 is connected with the connecting seat 200. The first connecting assembly 40 includes a first bearing portion 41, a guiding elastic portion 42, a height limiting portion 43, and a rotation stopping portion 44 sequentially arranged in a first direction. The guiding elastic portion 42 includes a fixed end 421 and a free end 422, the fixed end 421 is close to the first end surface 20 relative to the free end 422, and the rotation stopping portion 44 is disposed between the height limiting portion 43 and the guiding elastic portion 42 on the first connecting surface 10 along the direction perpendicular to the first direction.

For convenience of illustration, as shown in fig. 1, the connecting head 100 includes a first end surface 20 and a second end surface 30 disposed opposite to each other, a connecting line direction of the first end surface 20 and the second end surface 30 is taken as the first direction, and a direction parallel to the first end surface 20 and the second end surface 30 is obviously perpendicular to the first direction. Wherein the first bearing part 41 is arranged close to the first end face 20 and far from the second end face 30.

In the embodiment of the present invention, the connector 100 is connected to the connecting seat 200 through the first connecting assembly 40, and the connector 100 can be pressed on the first end surface 20, so that in the process that the connector 100 enters the connecting seat 200 along the direction from the first end surface 20 to the second end surface 30, the free end 422 of the guiding elastic portion 42 can be deformed under the action of the guiding portion 242 of the connecting seat 200, and the connector 100 is driven to rotate along the direction parallel to the first end surface 20, so that the first bearing portion 41 is disposed between the guiding inclined surface 2421 and the second bearing portion 241 and abuts against the second bearing portion 241, so as to prevent the connector 100 from being separated from the connecting seat 200, meanwhile, the free end 422 of the guiding elastic portion 42 still abuts against the guiding portion 242 of the connecting seat 200, and the guiding elastic portion 42 bears the elastic force from the first end surface 30 to the direction of the first end surface 20, the component direction of the elastic force is opposite to the abutting force of the second bearing part 241 on the first bearing part 41, so that the first end face 20 of the connector 100 only needs to be pushed towards the second end face 30, a large area of fingerprints or scratches cannot be left on the connector 100, the connector 100 can be limited and fixed in the connecting seat 200, and the connector 100 can be detached from the connecting seat 200.

On the first connecting surface 10, the extending direction from the fixed end 421 to the free end 422 passes through the first bearing portion 41. Specifically, the guiding elastic portion 42 may have a cylindrical shape, two ends of the cylindrical shape are a fixed end 421 and a free end 422, respectively, and an extending direction of the fixed end 421 to the free end 422 is collinear with an extending direction of the free end 422 to the first bearing portion 41. In fact, the position of the first bearing portion 41 may not be located in the extending direction from the fixed end 421 to the free end 422, and the first bearing portion 41 is used to abut against the second bearing portion 241 of the connection seat 200 to prevent the connection head 100 from being separated from the connection seat 200 after the connection head 100 is connected to the connection seat 200, so that the first bearing portion 41 may abut against the second bearing portion 241.

The embodiment of the present invention provides, the connector 100 can be integrally disposed, for example, the connector 100 can be made of plastic material with elasticity, such as PC, and can be formed by injection molding. In order to make the guide elastic part 42 have elasticity, while the first bearing part 41, the height limiting part 43, and the rotation stopping part 44 have relatively no elasticity, the thickness dimension of the guide elastic part 42 may be reduced to facilitate deformation. Further, in order to fix the fixed end 421 of the wire elastic portion relative to the free end 422, the vertical distance between the fixed end 421 and the first connection surface 10 should be smaller than the vertical distance between the free end 422 and the first connection surface 10. Of course, the connection head 100 may be made of a metal material, and the specific guide elastic part 42 may be made of an elastic metal material, such as SUS301 or 65 Mn. In addition, since the elasticity of the metal material is usually due to the plastic material, the parts of the connecting head 100 other than the guiding elastic part 42 can be plastic parts, and the guiding elastic part 42 of the metal material can be embedded into the connecting head 100.

As a variation, the connector 100 may be separately provided, and the first connection assembly 40 may be separately connected to the first connection surface 10.

The embodiment of the utility model provides an in, the stiff end 421 and the free end 422 of direction elastic component 42 are relative setting, and the relative stiff end 421 of free end 422 can produce the deformation that is showing, and the relative free end 422 of stiff end 421 is fixed setting to make the part that contacts with free end 422 can receive the spring action of direction elastic component 42.

In the embodiment of the present invention, the first connection surface 10 may be an annular surface, and the first end surface 20 is an annular end surface. Of course, the first connection surface 10 may not be an annular surface, but a flat surface. Specifically, the first connection surface 10 may be an annular inner surface, that is, the first connection surface 10 surrounds the second connection surface 210; the first connecting surface 10 may also be an annular outer surface, that is, the second connecting surface 210 surrounds the first connecting surface 10, and at this time, the connecting head 100 is at least partially received in the connecting seat 200.

One first connecting element 40 may be disposed on the connecting head 100, or two or more first connecting elements 40 may be disposed on the connecting head 100, and the two or more first connecting elements 40 are sequentially disposed on the first connecting surface 10 along a direction parallel to the first end surface 20, and may be uniformly disposed.

In the embodiment of the present invention, the connector 100 may be a reflector, or may be other components. When the connector 100 is a reflector, in a direction from the second end surface 30 to the first end surface 20, the first connecting surface 10 is an arc-shaped surface, and an orthographic projection size of the second end surface 30 on the surface where the first end surface 20 is located is smaller than that of the first end surface 20, obviously, the light outlet of the reflector may be disposed on the first end surface 20, and the light inlet may be disposed on the second end surface 30.

As a variation, in the direction from the second end surface 30 to the first end surface 20, the first connection surface 10 is a plane, and the orthographic projection size of the second end surface 30 on the surface of the first end surface 20 is equal to the size of the first end surface 20; in some special cases, the orthographic projection size of the second end face 30 on the face where the first end face 20 is located is larger than the size of the first end face 20.

Specifically, in the embodiment of the present invention, the first bearing portion 41 may be a first bearing block or a first bearing hook. The first hook may be provided with a notch (not shown) facing the first end surface 20.

The height restriction portion 43 or the rotation stopper portion 44 may be block-shaped.

In the present invention, the connector 100 may be a reflector, and the first bearing portion 41 is disposed near the light-emitting opening of the reflector, that is, near the first end surface 20 (the light-emitting opening of the reflector is disposed on the first end surface 20).

Example 2

Referring to fig. 3 and 4, embodiment 2 of the present invention provides a connecting seat 200 for connecting with the connecting head 100. The connecting seat 200 includes a second connecting surface 210, a second connecting assembly 240 is disposed on the second connecting surface 210, and the second connecting assembly 240 includes a second bearing portion 241, a guiding portion 242 or a movable space 243, and a limiting surface, which are sequentially disposed along a first direction. The guiding portion 242 has a guiding inclined surface 2421, the guiding inclined surface 2421 faces the moving space 243 and is disposed in a cleaning manner towards the second bearing portion 241, and the guiding inclined surface 2421 keeps a distance from the limiting portion 244 along a direction perpendicular to the first direction.

For convenience of illustration, as shown in fig. 3, the connecting head 200 includes a third end surface 220 and a fourth end surface 240 which are oppositely disposed, a connection line direction of the third end surface 220 and the fourth end surface 240 is taken as the first direction, and a direction parallel to the third end surface 220 and the fourth end surface 240 is obviously perpendicular to the first direction. The first bearing portion 241 is disposed near the third end surface 220 and far from the fourth end surface 240.

In the embodiment of the present invention, compared with the position-limiting portion 244, the moving space 243 is closer to the first end surface 20, so that after the connector 100 is pressed into the connecting seat 200, the height-limiting portion 43 passes through the moving space 243, the free end 422 of the guiding elastic portion 42 is also deformed, in the process that the height-limiting portion 43 is close to the position-limiting portion 244, the deformation of the free end 422 of the guiding elastic portion 42 is gradually increased until the height-limiting portion 43 abuts against the position-limiting portion 244, the connector 100 cannot enter into the connecting seat 200 along the direction from the first end surface 20 to the second end surface 30, under the reaction force of the free end 422 of the guiding elastic portion 42, the connector 100 rotates relative to the connecting seat 200, specifically, the connector 100 can rotate along the direction of the first end surface 20 or the third end surface 220, because the connector 100 rotates relative to the connecting seat 200, so that the height-limiting portion 43 no longer abuts against the position-limiting portion 244, but the rotation-stopping portion 44 is, the guiding inclined surface 2421 and the limiting portion 244 keep a distance therebetween, so that the rotation stopping portion 44 of the connector 100 can extend between the guiding inclined surface 2421 and the limiting portion 244, and in the process of rotating the connector 100 relative to the connector base 200, the rotation stopping portion 44 is close to the limiting portion 244 until the rotation stopping portion 44 abuts against the limiting portion 244.

The utility model discloses in the connecting seat 200 of embodiment, guiding part 242 still includes spacing face 2422 in space, and activity space 243 sets up between direction inclined plane 2421 and spacing face 2422 in space, and on being on a parallel with the direction of third terminal surface 220, spacing face 2422 in space keeps a distance with spacing portion 244 to when making connector 100 dismantle from connecting seat 200, the portion 44 that splines and limit for height portion 43 can be followed and exited from between spacing face 2422 in space and the spacing portion 244.

In the embodiment of the present invention, the second connecting surface 210 may be an annular surface, and the third end surface 220 and the fourth end surface 230 are annular end surfaces. Of course, the second connecting surface 210 may not be a circular surface, but a plane surface, and correspondingly, the third end surface 220 and the fourth end surface 230 may be rectangular surfaces. Specifically, the second connecting surface 210 may be an annular inner surface or an annular outer surface.

One second connection component 240 may be disposed on the connection seat 200, or two or more second connection components 240 may be disposed on the connection seat 200, and the two or more second connection components 240 are sequentially disposed on the second connection surface 210 along a direction parallel to the third end surface 220, and may be uniformly disposed.

Since the extending direction of the fixed end 421 to the free end 422 on the first connecting surface 10 in the connecting head 100 passes through the first bearing portion 41, correspondingly, on the connecting seat 200, the extending line of the second bearing portion 241 on the second connecting surface 210 along the direction from the first end surface 20 to the second end surface 30 intersects with the guiding inclined surface 2421, so that when the guiding elastic portion 42 of the connecting head 100 abuts against the guiding inclined surface 2421, the first bearing portion 41 can abut against the second bearing portion 241. Further, on the second connection surface 210, since the positioning portion is spaced from the guide slope 2421 in the direction parallel to the third end surface 220, the stopper surface is also spaced from the second receiving portion 241 in the direction parallel to the third end surface 220.

In the embodiment of the present invention, the connecting seat 200 may be a lamp housing for accommodating the reflector, or may be other components. When the connection base 200 is a lamp housing for accommodating a reflector, in a direction from the fourth end surface 230 to the third end surface 220, the second connection surface 210 is an arc-shaped surface or a multi-section plane, and an orthographic projection size of the fourth end surface 230 on a surface where the third end surface 220 is located is smaller than that of the third end surface 220.

As a modification, in the direction from the fourth end surface 230 to the third end surface 220, the second connection surface 210 is a plane, and the size of the orthographic projection of the fourth end surface 230 on the surface of the third end surface 220 is equal to the size of the third end surface 220; in some special cases, the orthogonal projection size of the fourth end surface 230 on the surface of the third end surface 220 is larger than the size of the third end surface 220.

In an embodiment of the present invention, the second bearing portion 241 may be a bearing block or a second bearing hook. The second hook may have a notch (not shown) away from the third end surface 220.

The embodiment of the utility model provides a connecting seat 200 can be made by metal material, also can be made by plastic material, or metal material and plastic material mix and form. It should be understood that the connection holder 200 may also be integrally provided; of course, the device may be provided separately.

Example 3

An embodiment of the present invention provides a connection structure, including the connector 100 of embodiment 1 and the connection seat 200 of embodiment 2. Specifically, the first connecting surface 10 is disposed opposite to the second connecting surface 210, the first end surface 20 is disposed near the third end surface 220, the second end surface 30 is disposed near the fourth end surface 230, along a direction parallel to the first end surface 20, the limiting portion 244 is disposed between the guiding inclined surface 2421 and the rotation stopping portion 44 and abuts against the rotation stopping portion 44, the free end 422 of the guiding elastic portion 42 abuts against the guiding inclined surface 2421 and deforms toward the height limiting portion 43, and along the direction from the first end surface 20 to the second end surface 30, the first bearing portion 41 is disposed between the guiding inclined surface 2421 and the second bearing portion 241 and abuts against the second bearing portion 241.

One of the first bearing portion 41 and the second bearing portion 241 is a bearing block, and the other bearing hook is provided with a notch, and the bearing block can abut against the notch of the bearing hook, so that the limiting connection between the connector 100 and the connecting base 200 is realized.

The above embodiment specifically receives the connection head 100, the connection socket 200 and the assembled structure of the two together. The following describes in detail the process of mounting the connector 100 to the connector holder 200 and dismounting the connector 100 from the connector holder 200.

Referring to fig. 5 to 8, a process of mounting the connector 100 to the connector holder 200 is described. In fig. 5, the guiding elastic part 42 of the connector 100 is aligned with the guiding inclined surface 2421 of the connector holder 200, and then the connector 100 is upwardly connected; in fig. 6, the guiding elastic part 42 on the connecting head 100 is pushed leftward by the guiding inclined surface 2421 on the connecting seat 200, and at this time, the first bearing part 41 on the connecting seat 200 is blocked by the second bearing part 241 on the connecting seat 200, so that the connecting head 100 cannot rotate to the left side, which causes the guiding elastic part 42 to deform to the left side, and meanwhile, the connecting head 100 continues to be pushed upward; in fig. 7 and 8, when the connecting head 100 is pushed to a certain height, the height-limiting portion 43 touches the limiting portion 244, and the connecting head 100 can not be pushed upward any more, and at this time, when the first bearing portion 41 moves above the second bearing portion 241, the connecting head 100 receives the restoring force of the deformed guiding elastic portion 42, i.e. the leftward pushing force, and the connecting head 100 rotates leftward; when the rotation-stopping portion 44 touches the limit, the connecting head 100 cannot rotate leftward, and the guiding elastic portion 42 is still in a leftward deformed state, so that the connecting head 100 receives a leftward and downward force, and the first bearing portion 41 is blocked by the second bearing portion 241 and cannot move downward; at this time, the connector 100 is in a fixed state (the height limiting portion 43 is away from the limiting portion 244), and both hands are away from the connector 100, so that the installation is completed.

Referring to fig. 9 to 12, the process of detaching the connector 100 from the connector holder 200 is illustrated. In fig. 9, the two hands push the connector 100 upwards, the rotation stopping portion 44 moves upwards along the limiting portion 244, and the guiding elastic portion 42 continues to deform leftwards under the action of the guiding inclined surface 2421; in fig. 10, when the connection head 100 moves to a certain height, the rotation stop portion 44 moves above the position limiting portion 244, the connection head 100 receives the restoring force of the deformed guide elastic portion 42, i.e., the leftward pushing force, so that the connection head 100 rotates leftward, and the rotation stop portion 44 moves to the leftmost side of the position limiting portion 244; in fig. 11, the connecting head 100 is separated from the connecting seat 200 only by its own weight; the detachment of the connection head 100 from the connection holder 200 is completed in fig. 12.

Example 4

The embodiment of the present invention provides a lighting device, which may include the connector 100 as in embodiment 1, or include the connecting socket 200 as in embodiment 2, or include the connecting structure as in embodiment 3.

Specifically, the connection connector 100 may be a lamp housing of the lighting device for accommodating a reflector, and the connection socket 200 may be a reflector of the lighting device.

In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A connecting structure is characterized by comprising a connecting head and a connecting seat which are mutually connected;

the connector comprises a first connecting surface, a first connecting assembly is arranged on the first connecting surface, and the first connecting assembly comprises a first bearing part, a guiding elastic part, a height limiting part and a rotation stopping part which are sequentially arranged along a first direction; the guide elastic part comprises a fixed end and a free end, and the fixed end is far away from the height limiting part relative to the free end; the rotation stopping part is arranged between the height limiting part and the guiding elastic part in the direction perpendicular to the first direction;

the connecting seat comprises a second connecting surface, a second connecting assembly is arranged on the second connecting surface, and the second connecting assembly comprises a second bearing part, a guide part or a movable space and a limiting part which are sequentially arranged along the first direction; the guide part is provided with a guide inclined plane, the guide inclined plane faces the movable space and is obliquely arranged towards the second bearing part, and a distance is kept between the guide inclined plane and the limiting part along a direction perpendicular to the first direction;

the first connecting surface and the second connecting surface are arranged oppositely, the limiting portion is arranged between the guide inclined surface and the rotation stopping portion and is abutted to the rotation stopping portion in the direction perpendicular to the first direction, the free end of the guide elastic portion is abutted to the guide inclined surface and deforms towards the direction of the height limiting portion, and the first bearing portion is arranged between the guide inclined surface and the second bearing portion and is abutted to the second bearing portion in the first direction.

2. The connecting structure according to claim 1, wherein the fixed end to the free end extend in a direction passing through the first bearing part, the second bearing part, and the guide slope.

3. The connection structure according to claim 1, wherein the second connection face surrounds the first connection face; or the first connection face surrounds the second connection face.

4. The connecting structure according to claim 3, wherein at least two of said first connecting members are provided on said first connecting face and at least two of said second connecting members are provided on said second connecting face in a direction perpendicular to said first direction.

5. The connecting structure according to claim 3, wherein the connecting head is at least partially received in the connecting seat.

6. The connecting structure according to claim 1, wherein the guide elastic part is made of a plastic elastic member or a metal elastic member.

7. The connecting structure according to claim 1, wherein one of the first bearing portion and the second bearing portion is a bearing block, and the other is a bearing hook, and the bearing block abuts against a notch of the bearing hook.

8. The connecting structure according to claim 1, wherein the connecting head is a reflector, and the connecting seat is a lamp housing; the light outlet of the reflector is in the same direction as the opening of the lamp shell, the lamp shell is provided with an accommodating space, and the reflector is arranged in the accommodating space; compared with the height limiting part, the first bearing part is arranged close to the light outlet of the reflector; compare spacing portion, the second bearing part is close to the opening setting of lamps and lanterns casing.

9. The connecting structure according to claim 1, wherein the connecting head is integrally provided.

10. A lighting device characterized by comprising the connecting structure according to any one of claims 1 to 9.

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