CN211526343U - Shade Fixtures and Lighting Fixtures - Google Patents

Abstract

The utility model discloses a lampshade fixing device and an illuminating lamp, wherein the lampshade fixing device comprises a seat body, an operating part and a sliding part; the operating part comprises a cam, the cam is rotationally connected with the base body, the sliding part is in sliding connection with the base body, the sliding part is in sliding contact with a rim of the cam, the cam drives the sliding part to slide along the direction perpendicular to the axis of the cam, and the sliding part and the base body form a lampshade clamping space. In the above scheme, the cam drives the sliding portion to slide, so that the sliding portion and the lampshade are subjected to position interference, the sliding portion and the lampshade are in limit fit, meanwhile, the seat body and the sliding portion are matched with each other to clamp part of the lampshade, the lampshade is not easy to separate from the sliding portion, the lampshade and the lampshade fixing device are not easy to separate, and safety and reliability of the lighting lamp are improved.

Description

Shade Fixtures and Lighting Fixtures

technical field

The utility model relates to the technical field of lighting equipment, in particular to a lampshade fixing device and a lighting fixture.

Background technique

As a lighting device, lighting fixtures have been widely used in people's daily life and work. With the continuous improvement of the quality of life, people have put forward higher requirements for the structure, performance and appearance of lighting fixtures. The design of the lamps brought a huge test.

A lighting fixture usually includes a base and a lampshade, a threaded ring is bonded on the lampshade, and the base is threadedly connected to the lampshade through the threaded ring. Lighting lamps are favored by people because of their simple structure and good appearance and texture.

However, due to the aging of the bonding material, the threaded ring may fall off the lampshade, so that the lampshade is separated from the base body, thereby causing damage to the lighting fixture, thus lowering the safety and reliability of the lighting fixture.

Utility model content

The utility model discloses a lampshade fixing device and a lighting fixture to solve the problems of low safety and reliability of the lighting fixture.

In order to solve the above-mentioned problems, the utility model adopts the following technical solutions:

A lampshade fixing device, applied to a lighting fixture, includes a seat, an operation part and a sliding part;

The operating part includes a cam, the cam is connected in rotation with the seat body, the sliding part is slidably connected with the seat body, the sliding part is in sliding contact with the rim of the cam, and the cam drives the The sliding portion slides in a direction perpendicular to the axis of the cam, and the sliding portion and the base form a lampshade clamping space.

A lighting fixture, comprising the above-mentioned lampshade fixing device.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

In the lampshade fixing device disclosed in the present invention, the cam can drive the sliding part to slide in a direction perpendicular to the axis of the cam, so that the sliding part and the base form a lampshade clamping space. In this solution, the cam drives the sliding part to slide, so that the sliding part interferes with the lampshade in position, so as to realize the limited cooperation between the sliding part and the lampshade. At the same time, the seat body and the sliding part cooperate with each other to clamp part of the lampshade, so the lampshade is not easy to It is separated from the sliding part, so that the lampshade and the lampshade fixing device are not easily separated, thereby improving the safety and reliability of the lighting fixture.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. . In the attached image:

1 is an exploded view of a lighting fixture disclosed in an embodiment of the present utility model;

2 is a partial cross-sectional view of the lighting fixture disclosed in the embodiment of the present utility model;

3 is a schematic structural diagram of a lampshade fixing device disclosed in an embodiment of the present invention;

4 is a schematic structural diagram of the lampshade fixing device disclosed in the embodiment of the present invention, when the cam is in another position;

5 is a schematic structural diagram of a seat body and an elastic member in the lampshade fixing device disclosed in the embodiment of the present invention;

FIG. 6 is a front view of the seat body in the lampshade fixing device disclosed in the embodiment of the present invention;

7 is a front view of the sliding portion of the lampshade fixing device disclosed in the embodiment of the present invention;

FIG. 8 is a top view of the sliding portion of the lampshade fixing device disclosed in the embodiment of the present invention;

FIG. 9 is a front view of the operation part in the lampshade fixing device disclosed in the embodiment of the present utility model;

FIG. 10 is a top view of the operation part in the lampshade fixing device disclosed in the embodiment of the present invention.

Description of reference numbers:

100-seat, 110-guide groove, 120-second protrusion, 130-first perforation, 140-second perforation, 150-accommodating groove, 160-first limiting portion, 170-second limiting portion ,

200-operating part, 210-cam, 220-shaft, 221-thread segment,

300 - sliding part, 301 - first protrusion, 302 - first guiding slope,

400-elastic parts,

500-The first limit piece,

600-lampshade,

700-light source module,

800-mounting bracket,

900 - accommodating space.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The technical solutions disclosed by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 10 , an embodiment of the present invention discloses a lampshade fixing device, which is applied to a lighting fixture. The disclosed lighting fixture includes a lampshade 600 . The lampshade 600 has an inner cavity and is provided with a lampshade connected to the inner cavity. open opening. The disclosed lampshade fixing device may specifically include a base body 100 , an operation part 200 and a sliding part 300 .

The operating part 200 includes a cam 210 , the cam 210 is rotatably connected with the base body 100 , the sliding part 300 is slidably connected with the base body 100 , and the sliding part 300 is in sliding contact with the rim of the cam 210 . At this time, when the cam 210 rotates, the cam 210 drives The sliding part 300 slides in a direction perpendicular to the axis of the cam 210 , and the sliding part 300 and the base 100 form a lampshade clamping space.

In the specific operation, the sliding part 300 has a first position and a second position. When the sliding part 300 is in the first position, the sliding part 300 can extend into the inner cavity of the lampshade 600 through the opening. At this time, the sliding part 300 and the cam 210 contact on the rim closest to the center of rotation. When the sliding part 300 is located in the inner cavity, the cam 210 drives the sliding part 300 to switch from the first position to the second position, so that the sliding part 300 and the base 100 form a lampshade clamping space. At this time, the sliding part 300 and the cam The part on the rim of 210 that is farthest from the center of rotation is in contact.

Optionally, the seat body 100 may be provided with a sliding track, and the sliding portion 300 may be provided with a sliding protrusion, and the sliding protrusion is slidably matched with the sliding track, so that the sliding portion 300 and the seat body 100 can be slidably connected. The specific structure of the cam 210 is not limited herein, as long as the structure of the cam 210 is sufficient to drive the sliding portion 300 to slide when the cam 210 rotates.

In the embodiment of the present invention, the cam 210 drives the sliding part 300 to slide, so that the sliding part 300 interferes with the lampshade 600 , so as to realize the position-limiting cooperation between the sliding part 300 and the lampshade 600 . Part of the lampshade 600 is clamped, so the lampshade 600 is not easily separated from the sliding part 300 , so that the lampshade 600 and the lampshade fixing device are not easily separated, thereby improving the safety and reliability of the lighting fixture.

In the background art, the threaded ring is adhered to the lampshade 600 by adhesive materials such as glue. However, the curing time of the glue is long, resulting in low production efficiency of the lighting fixture. Therefore, in the present invention, the positional interference between the sliding part 300 and the lampshade 600 is realized, so as to realize the limited cooperation between the sliding part 300 and the lampshade 600 , thereby shortening the manufacturing cycle of the lighting fixture and improving the production efficiency of the lighting fixture.

At the same time, the sliding distance of the sliding part 300 can be set according to the actual working conditions, so the lampshade fixing device can adapt to the lampshades 600 of different sizes, thereby making the assembly of the lighting fixture more flexible.

In addition, the base body 100 can also be used as a heat dissipation component of the lighting fixture, thereby improving the heat dissipation performance of the lighting fixture. Specifically, the base body 100 is usually made of a material with good thermal conductivity. For example, the base body 100 may be a metal base.

In the above embodiment, after the cam 210 drives the sliding portion 300 to switch from the first position to the second position, at this time, it is difficult for the sliding portion 300 to return from the second position to the first position, which makes it difficult to disassemble the lampshade 600 and the lampshade fixing device. As a result, the maintainability of the lighting fixture is reduced.

In order to solve the above problems, in an optional embodiment, the lampshade fixing device may further include an elastic member 400, the first end of the elastic member 400 may be connected with the base body 100, and the second end of the elastic member 400 may be connected with the sliding part 300 connections. At this time, when the cam 210 applies a driving force to the sliding portion 300, the elastic member 400 is deformed, so that the sliding portion 300 slides in the direction of the second position. When the cam 210 removes the driving force applied to the sliding portion 300, the elastic member 400 is deformed During the process of restoring the deformation of the 400, the elastic member can drive the sliding part 300 to slide in the direction of the first position, and the elastic member 400 can drive the sliding part 300 to return to the first position, so that the lampshade fixing device can be disassembled from the lampshade 600, thereby improving the performance of the lampshade 600. Repairability of lighting fixtures. At the same time, this solution can also replace the lampshade 600. By replacing the lampshade 600 of different types, the user's application in different scenarios can be satisfied.

Optionally, when the cam 210 applies a driving force to the sliding portion 300, the elastic member 400 may be in a compressed state, or the elastic member 400 may also be in an extended state. The elastic member 400 may be a spring, and certainly may be other elastic structures, which are not limited herein.

In another optional implementation force, the sliding portion 300 may be provided with a first protrusion 301, the base body 100 may be provided with a guide groove 110, the first protrusion 301 may be slidably matched with the guide groove 110, and the first protrusion 301 slides in the guide groove 110 along with the sliding part 300 . At least part of the elastic member 400 is located in the guide groove 110 , and the second end of the elastic member 400 is connected with the first protrusion 301 . In this solution, the guide groove 110 can define the movement path of the first protrusion 301 and the extension and contraction direction of the elastic member 400. When the sliding portion 300 slides, the guide groove 110 can prevent the first protrusion 301 and the elastic member 400 from moving laterally , so that the sliding accuracy of the sliding portion 300 can be improved. In addition, at least a part of the elastic member 400 is located in the guide groove 110 , so that the stacking height of the base body 100 and the elastic member 400 is smaller, so that the space occupied by the base body 100 and the elastic member 400 in the inner cavity is smaller.

In another optional embodiment, the elastic members 400 are all located in the guide grooves 110. At this time, the elastic members 400 are not easily protruded from the base body 100, so that the stacking thickness of the lampshade fixing device is further reduced. The element 400 is hidden in the guide groove 110, so that the elastic element 400 is less likely to interfere with other components of the lampshade fixing device, thereby improving the reliability of the lampshade fixing device.

In another optional embodiment, the base body 100 may be provided with a second protrusion 120 , the second protrusion 120 may be located in the guide groove 110 , and the first end of the elastic member 400 may be connected with the second protrusion 120 connected. In this solution, one end of the elastic member 400 is connected to the first protrusion 301, and the other end of the elastic member 400 is connected to the second protrusion 120, so that the installation heights of both ends of the elastic member 400 are the same, so that the elastic member 400 is stretched. Or when compressed, the elastic member 400 receives a relatively balanced force, so that it is not easy to tilt. Meanwhile, the second protrusion 120 can be disposed in the guide groove 110, so that the second protrusion 120 is not easy to interfere with other components of the lampshade fixing device.

In the above embodiment, the operation part 200 may be provided with a driving motor, and the driving motor is connected with the cam 210 to drive the cam 210 to rotate. However, the drive motor has a complex structure and occupies a large installation space, so that the appearance size of the lampshade fixing device is large, and at the same time, the drive motor tends to generate heat during operation, which is not conducive to the heat dissipation of the lighting fixture.

In an optional embodiment, the operation part 200 may further include a rotating shaft 220, the rotating shaft 220 is rotatably connected with the base body 100, the base body 100 may be provided with a first through hole 130, and one end of the rotating shaft 220 may be connected with the cam 210, The other end of the rotating shaft 220 can extend out of the first through hole 130 , and the rotating shaft 220 drives the cam 210 to rotate. At this time, the user can hold the end of the rotating shaft 220 protruding from the first through hole 130 and rotate the rotating shaft 220 , the rotating shaft 220 drives the cam 210 to rotate, and the cam 210 drives the sliding part 300 to slide. In this solution, a part of the rotating shaft 220 can be located in the first through hole 130, so that the size of the part of the rotating shaft 220 protruding from the base body 100 is smaller, so that the stacking height of the structure formed by the base body 100 and the rotating shaft 220 is smaller, so the base The structure formed by the body 100 and the rotating shaft 220 occupies less space in the inner cavity. At the same time, there is no problem of power consumption in the whole operation process, so the energy consumption of the lighting fixture is small. In addition, the switching of the sliding portion 300 can be completed by rotating the rotating shaft 220, so that the operation of the lampshade fixing device is simple.

In order to improve the reliability of the lampshade fixing device, in an optional embodiment, the lampshade fixing device may further include a first limiting member 500 , and a second through hole 140 is formed on the side wall of the base body 100 . In the case of clamping a part of the lampshade 600 of the lighting fixture, the first limiting member 500 passes through the second through hole 140 and engages with the rotating shaft 220 in a limiting manner. At this time, the sliding part 300 slides to the second position. In this solution, the first limiting member 500 passes through the second through hole 140 to engage with the rotating shaft 220 in a limited position. At this time, the cam 210 can be kept at this position, so that the sliding portion 300 is kept at the second position, preventing the sliding portion 300 from moving toward the rotating shaft 220 . The first position moves, thereby improving the reliability of the lampshade fixing device.

Optionally, the first limiting member 500 may be a screw, the second through hole 140 may be a threaded hole, the screw passes through the threaded hole and abuts against the rotating shaft 220, or the rotating shaft 220 is provided with a third through hole, and the third through hole is a threaded hole A hole, the screw passes through the second through hole 140 and threadedly engages with the third through hole.

In an optional embodiment, the base body 100 may be provided with an accommodating groove 150 , at least part of the sliding portion 300 may be located in the accommodating groove 150 , and the sliding portion 300 may slide relative to the accommodating groove 150 . At this time, a part of the sliding part 300 is hidden in the accommodating groove 150 , so that the stacking height of the base body 100 and the sliding part 300 is lower, and thus the appearance size of the lampshade fixing device is smaller. At the same time, the accommodating groove 150 can guide the sliding part 300 so as to prevent the sliding part 500 from being deflected when sliding.

In the above-mentioned embodiment, the cam 210 can rotate 360° around the axis of the cam 210. At this time, the rotation range of the cam 210 is large, so a large rotation space needs to be reserved, so that the cam 210 occupies a large space of the base. In an optional embodiment, the base body 100 may be provided with a first limiting portion 160 and a second limiting portion 170 , and the first limiting portion 160 and the second limiting portion 170 may cooperate with the cam 210 in a limiting position. So that the rotation range of the cam 210 can be 0-90°. When the rotation angle of the cam 210 is 0°, the sliding part 300 is in contact with the part on the rim of the cam 210 closest to the rotation center, and the sliding part 500 is in the first position; when the rotation angle of the cam 210 is 90°, the sliding part 500 is in contact with the part on the rim of the cam 210 farthest from the rotation center, and the sliding part 300 is in the second position. In this solution, only the installation space of the cam 210 in the rotation range of 0° to 90° is reserved on the base body 100 , so that the space of the base body 100 occupied by the cam 210 is small. In addition, the rotation range of the cam 210 is between 0° and 90°, which is sufficient to meet the sliding requirements of the sliding portion 300 , thereby reducing unnecessary operations by the user and preventing misoperations by the user.

In order to further improve the safety and reliability of the lampshade fixing device, in another embodiment, the number of sliding parts 300 may be at least two. The sliding directions of the sliding parts 300 are opposite. In this solution, at least two sliding parts 300 are in position-limited cooperation with the lampshade 600 , so that the sliding parts 300 provide greater support for the lampshade 600 , thereby making the connection between the lampshade fixing device and the lampshade 600 more stable. At the same time, at least two The sliding portion 300 can be symmetrically arranged with respect to the axis of the cam 210 . At this time, the force of the lampshade 600 is relatively balanced, so that the lampshade 600 is not prone to tilt, thereby improving the safety and reliability of the lampshade fixing device.

In the above embodiment, when the sliding portion 300 slides from the first position to the second position, the edge of the sliding portion 300 is likely to interfere with the edge of the opening of the lampshade 600, so that the sliding portion 300 is stuck at the opening of the lampshade 600, thereby causing the lampshade. The fixture is difficult to assemble with the lampshade 600 . In an optional embodiment, the sliding part 300 may have a first guide slope 302, the lampshade 600 of the lighting fixture may have a second guide slope, and the first guide slope 302 may abut against the second guide slope. At this time, since the inclination directions of the first guide slope 302 and the second guide slope are the same, when the sliding part 300 slides from the first position to the second position, the edge of the sliding part 300 is not easy to interfere with the opening edge of the lampshade 600, Therefore, the sliding part 300 can be matched with the lampshade 600 more smoothly. In addition, when the sliding part 300 slides to the second position, the first guiding inclined surface 302 can abut with the second guiding inclined surface, and the first guiding inclined surface 302 and the second guiding inclined surface are closely fitted, so that the lampshade 600 and the sliding part 300 There is no gap therebetween, so that the installation accuracy of the sliding part 300 and the lampshade 600 is high.

The embodiment of the present invention also discloses a lighting fixture, which may include a lampshade 600 and the lampshade fixing device described in any of the above embodiments. Specifically, part of the lampshade 600 is located in the lampshade clamping space. In this embodiment, the sliding part 300 and the lampshade 600 are limitedly matched, so the lampshade 600 is not easily separated from the sliding part 300, so that the lampshade 600 and the lampshade fixing device are not easily separated, thereby improving the safety and reliability of the lighting fixture.

Optionally, the lampshade 600 can be made of glass, plastic and other materials by blowing, and of course can also be made by other processes. The manufacturing process of the lampshade 600 is a well-known technology, so it is not repeated here. The lighting fixture may be a ceiling light, a street light, a chandelier and other light fixtures, and of course other light fixtures are not limited herein.

In an optional embodiment, the lighting fixture disclosed in the present invention may further include a light source module 700. The light source module 700 is connected to the base body 100, and forms an accommodation space 900 with the base body 100. Part of the sliding portion 300 It is located in the accommodating space 900 . At this time, the light source module 700 is assembled into the lampshade 600 through the lampshade fixing device, so that the lampshade 600 does not need to be provided with the fixing parts of the light source module 700, thereby making the lighting fixture easy and convenient to assemble. In addition, when replacing and maintaining the light source module 700, only the lampshade fixing device needs to be disassembled, so that the light source module 700 can be easily replaced and disassembled. At the same time, the light source module 700 is connected with the base body 100, so the base body 100 can be used for heat dissipation of the light source module 700, thereby improving the heat dissipation performance of the lighting fixture.

Optionally, there are various types of light source modules 700, such as LED light source modules or gas discharge light source modules, which are not limited in the embodiment of the present invention. The base body 100 and the light source module 700 may be connected by a screw connection.

The lighting fixture disclosed in the present invention may further include a driver, the driver is disposed on the base body 100, the driver is electrically connected with the light source module 700, and the driver is used for driving the light source module 700 to emit light.

In an optional embodiment, the lighting fixture disclosed in the present invention may further include a mounting bracket 800, and the mounting bracket 800 is used to fix or hang the lighting fixture on an installation foundation, which may be the roof of a house or a is the mounting post. One end of the mounting bracket 800 is connected to the installation foundation, and the other end of the mounting bracket 800 is connected to the lampshade fixing device. The specific structure of the mounting bracket 800 can be selected according to actual installation conditions. The end of the rotating shaft 220 facing away from the protrusion is provided with a threaded segment 221 , and the threaded segment 221 is threadedly connected with the mounting bracket 800 .

In this solution, the end of the rotating shaft 220 away from the cam 210 is connected to the mounting bracket 800 , so that the base body 100 does not need to be additionally provided with connecting components to connect with the mounting bracket 800 , thereby simplifying the structure of the lighting fixture. In addition, the mounting bracket 800 is threadedly connected with the rotating shaft 220 , so that the mounting bracket 800 and the rotating shaft 220 are easily disassembled and the maintenance of the lighting fixture is facilitated.

Optionally, the threaded section 221 may be an external thread provided on the side wall of the rotating shaft 220, and the mounting bracket 800 may be provided with an internal thread, or the threaded section 221 may be an internal thread provided on the rotating shaft 220, and an external thread may be provided on the mounting bracket 800. .

The above embodiments of the present invention mainly describe the differences between the various embodiments. As long as the different optimized features of the various embodiments are not contradictory, they can be combined to form better embodiments. Considering the conciseness of the text, here It will not be repeated.

The above descriptions are merely examples of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims (14)

1. A lampshade fixing device, applied to a lighting fixture, characterized in that it comprises a seat body (100), an operating part (200) and a sliding part (300); The operating part (200) comprises a cam (210), the cam (210) is connected in rotation with the base body (100), the sliding part (300) is slidably connected with the base body (100), and the The sliding part (300) is in sliding contact with the rim of the cam (210), the cam (210) drives the sliding part (300) to slide in a direction perpendicular to the axis of the cam (210), the sliding part (300) and the base body (100) form a lampshade clamping space. 2. The lampshade fixing device according to claim 1, characterized in that, the lampshade fixing device further comprises an elastic member (400), and the first end of the elastic member (400) is connected to the base body (100) , the second end of the elastic member (400) is connected with the sliding part (300). 3 . The lampshade fixing device according to claim 2 , wherein the sliding portion ( 300 ) is provided with a first protrusion ( 301 ), and the base body ( 100 ) is provided with a guide groove ( 110 ), so that the The first protrusion (301) is slidably matched with the guide groove (110), at least part of the elastic member (400) is located in the guide groove (110), and the second end of the elastic member (400) is connected to the guide groove (110). The first protrusions (301) are connected. 4 . The lampshade fixing device according to claim 3 , wherein the base body ( 100 ) is provided with a second protrusion ( 120 ), and the second protrusion ( 120 ) is located in the guide groove ( 110 ). 5 . ), the first end of the elastic member (400) is connected with the second protrusion (120). 5 . The lampshade fixing device according to claim 1 , wherein the operation part ( 200 ) further comprises a rotating shaft ( 220 ), and the rotating shaft ( 220 ) is rotatably connected with the base body ( 100 ), and the The base body (100) is provided with a first through hole (130), one end of the rotating shaft (220) is connected with the cam (210), and the other end of the rotating shaft (220) protrudes from the first through hole (130). ), the rotating shaft (220) drives the cam (210) to rotate. 6. The lampshade fixing device according to claim 5, characterized in that, the lampshade fixing device further comprises a first limiting member (500), and a second through hole ( 140), in the case that the lampshade clamping space clamps a part of the lampshade (600) of the lighting fixture, the first limiting member (500) passes through the second through hole (140) and the rotating shaft (220) Limit fit. 7 . The lampshade fixing device according to claim 1 , wherein the base body ( 100 ) is provided with an accommodating groove ( 150 ), and at least part of the sliding portion ( 300 ) is located in the accommodating groove ( 150 ). 8 . ), and the sliding part (300) slides relative to the accommodating groove (150). 8. The lampshade fixing device according to claim 1, wherein the base body (100) is provided with a first limiting portion (160) and a second limiting portion (170), the first limiting portion The part (160) and the second limiting part (170) are limitedly matched with the cam (210), so that the rotation range of the cam (210) is 0-90°. 9 . The lampshade fixing device according to claim 1 , wherein the number of the sliding parts ( 300 ) is at least two, and the at least two sliding parts ( 300 ) are relative to the cam ( 210 ). 10 . The axes are arranged symmetrically, and the sliding directions of at least two of the sliding parts (300) are opposite. 10. The lampshade fixing device according to claim 1, wherein the sliding part (300) has a first guide slope (302), the lampshade (600) of the lighting fixture has a second guide slope, and the The first guide slope (302) abuts against the second guide slope. 11. A lighting fixture, characterized in that the lighting fixture comprises a lampshade (600) and the lampshade fixing device according to any one of claims 1 to 4 and 7 to 10, and a part of the lampshade (600) is located in the inside the lampshade holding space. 12. The lighting fixture according to claim 11, characterized in that, the lighting fixture further comprises a light source module (700), the light source module (700) is connected to the base (100), and is connected to the base (100) The seat body (100) encloses an accommodating space (900), and part of the sliding portion (300) is located in the accommodating space (900). 13. A lighting fixture, characterized in that, the lighting fixture comprises a lampshade (600) and the lampshade fixing device according to claim 5 or 6, and a part of the lampshade (600) is located in the lampshade holding space. 14. The lighting fixture according to claim 13, characterized in that, a threaded segment (221) is provided at one end of the rotating shaft (220) away from the cam (210), and the lighting fixture further comprises a mounting bracket (800) , the threaded section (221) is threadedly connected with the mounting bracket (800).

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