Lamp fixing device

Abstract

The utility model belongs to the technical field of supports, and particularly provides a lamp fixing device which comprises two lamp mounting frames, two movable adjusting pieces and a linkage mechanism, the two lamp mounting frames are matched for fixing a lamp, the two movable adjusting pieces are fixed to the two lamp mounting frames correspondingly, and the linkage mechanism is in linkage connection with the two movable adjusting pieces in a transmission mode. The two movable adjusting pieces can move in the opposite directions at the same time. The two movable adjusting pieces move in the opposite directions at the same time through the linkage mechanism, so that the two lamp mounting frames fixed to the two movable adjusting pieces respectively get away from each other or get close to each other, the requirement for mounting lamps of different sizes is met, and use is very convenient.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of support, and particularly relates to a lamp fixing device. BACKGROUND

[0002] In the photography work, a lamp is often used for lighting. In order to free the hands of the staff, the lamp is usually installed on a support. However, the current support for fixing the lamp can only adapt to a single size of the lamp, and when the photography work needs to use multiple lamps of different sizes, different sizes of the support need to be replaced, which is not convenient to use. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a lamp fixing device, and aims to solve the technical problem that the support for fixing the lamp in the prior art can only adapt to a single size of the lamp and is not convenient to use.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows: a lamp fixing device, comprising:

[0005] Two lamp mounting racks, the two lamp mounting racks are used for fixing the lamp in cooperation;

[0006] Two movable adjusting members, the two movable adjusting members are fixed with the two lamp mounting racks respectively;

[0007] A linkage mechanism, the linkage mechanism is drivingly connected to the two movable adjusting members, and can simultaneously move the two movable adjusting members in opposite directions.

[0008] Further, the linkage mechanism comprises a transmission gear, the two movable adjusting members are located on opposite sides of the transmission gear respectively, and the side of the two movable adjusting members facing the transmission gear is provided with the same rack, and the rack is engaged with the transmission gear.

[0009] Further, the lamp fixing device further comprises a base and a locking mechanism, the two movable adjusting members are arranged on the base and can move in opposite directions relative to the base, and the locking mechanism is used for locking the movable adjusting members on the base.

[0010] Further, the locking mechanism comprises a fixing frame, a pressing member and a cam, the fixing frame is arranged on the base, the pressing member is arranged on the side of the movable adjusting member away from the base, the cam is located on the side of the pressing member away from the movable adjusting member and is drivingly connected to the fixing frame, and the cam can press the movable adjusting member tightly or release the movable adjusting member when rotating.

[0011] Further, the locking mechanism further comprises an elastic member, the elastic member is arranged between the base and the pressing member, when the cam abuts against the pressing member, the elastic member is compressed, and when the cam is separated from the pressing member, the elastic member restores to the original state and separates the pressing member from the movable adjusting member.

[0012] Further, the pressing member is provided with two through holes, the number of the fixing frames is two, the two fixing frames are arranged at intervals and respectively movably pass through the two through holes; the locking mechanism further comprises a rotating shaft, the cam is located between the two fixing frames and is rotationally connected with the two fixing frames through the rotating shaft.

[0013] Further, the linkage mechanism comprises a transmission gear, the two movable adjusting members are respectively located at opposite sides of the transmission gear, the same gear rack is arranged on the side of the two movable adjusting members facing the transmission gear, and the gear rack is meshed with the transmission gear.

[0014] The linkage mechanism further comprises a threaded fastener, the threaded fastener passes through the transmission gear and is threadedly connected with the base, the transmission gear can rotate relative to the base about the threaded fastener, and the two ends of the elastic member are respectively connected with the pressing member and the threaded fastener.

[0015] Further, the locking mechanism further comprises a handle, one end of the handle is connected with the cam.

[0016] Further, the lamp fixing device further comprises a sliding rail and a sliding block, the sliding rail is arranged to extend along the movement direction of the movable adjusting member, and the two lamp mounting racks are connected with the sliding blocks which are in sliding fit with the sliding rail.

[0017] Further, the lamp fixing device further comprises a shell, the shell is provided with two through openings at opposite ends in the movement direction of the movable adjusting member, and the movable adjusting member and the linkage mechanism are arranged in the shell, and the two lamp mounting racks pass through the two through openings respectively.

[0018] Compared with the prior art, the lamp fixing device provided by the application has the beneficial effects that: the two movable adjusting members are simultaneously moved in opposite directions by the linkage mechanism, so that the two lamp mounting racks fixed on the two movable adjusting members are away from or close to each other, to meet the installation of lamps of different sizes, and the use is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0020] Figure 1 The structural schematic diagram of the lamp fixing device provided by the embodiments of the present application is shown in the figure.

[0021] Figure 2 The exploded view of the lamp fixing device shown in the figure is shown in the figure. Figure 1

[0022] ​Figure 3 A partial structure diagram of a lamp fixing device provided by an embodiment of the present application is shown in FIG. 1.

[0023] Figure 4 A partial structure diagram of a lamp fixing device provided by an embodiment of the present application is shown in FIG. 1. Figure 3 A cross-sectional view of the lamp fixing device after the lamp mounting rack is hidden;

[0024] Figure 5 A cross-sectional view of the lamp fixing device after the lamp mounting rack is hidden and the handle is rotated by a certain angle; Figure 3 A cross-sectional view of the lamp fixing device after the lamp mounting rack is hidden and the handle is rotated by a certain angle;

[0025] Figure 6 A partial structure diagram of a lamp fixing device provided by an embodiment of the present application is shown in FIG. 1. Figure 3 A partial structure diagram of a lamp fixing device provided by an embodiment of the present application is shown in FIG. 1.

[0026] In the drawings, various reference numbers refer to the following:

[0027] 10, lamp mounting rack;

[0028] 20, movable adjusting member; 21, rack gear;

[0029] 30, linkage mechanism; 31, transmission gear; 32, threaded fastener;

[0030] 40, base; 41, limiting protrusion;

[0031] 50, locking mechanism; 51, fixed rack; 52, pressing member; 521, pressing plate; 522, pressing block; 523, through hole; 53, cam; 54, elastic member; 55, rotating shaft; 56, handle;

[0032] 60, sliding rail;

[0033] 70, sliding block;

[0034] 80, outer shell; 81, through port; 82, bottom shell; 83, cover plate; 84, operation port. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar reference numbers represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Please refer to Figures 1 to 4 The embodiment of the present application provides a lamp fixing device, comprising:

[0040] Two lamp mounting frames 10, the two lamp mounting frames 10 are used for fixing lamps;

[0041] Two movable adjusting members 20, the two movable adjusting members 20 are respectively fixed with the two lamp mounting frames 10;

[0042] A linkage mechanism 30, the linkage mechanism 30 is in transmission connection with the two movable adjusting members 20, and can simultaneously move the two movable adjusting members 20 in opposite directions.

[0043] The two movable adjusting members 20 are simultaneously moved in opposite directions by the linkage mechanism 30, so that the two lamp mounting frames 10 fixed on the two movable adjusting members 20 respectively are away from each other or close to each other, to meet the installation of lamps of different sizes, which is very convenient to use. Specifically, increasing the distance between the two lamp mounting frames 10 can meet the installation of lamps of larger size, and reducing the distance between the two lamp mounting frames 10 can meet the installation of lamps of smaller size.

[0044] In one embodiment, the combination Figure 3 and Figure 4 As shown in the figure, the linkage mechanism 30 comprises a transmission gear 31, and two movable adjusting members 20 are respectively located on opposite sides of the transmission gear 31. The side of each movable adjusting member 20 facing the transmission gear 31 is provided with a same rack 21, and the rack 21 is engaged with the transmission gear 31. When it is needed to adjust the distance between the two light fixture mounting racks 10, one of the movable adjusting members 20 is moved linearly in a first direction, and the movable adjusting member 20 is engaged with the transmission gear 31 through the rack 21, thereby driving the transmission gear 31 to rotate, and the transmission gear 31 drives the other movable adjusting member 20 to move linearly in the opposite direction of the first direction, so as to realize the simultaneous movement of the two movable adjusting members 20 in opposite directions. Since the racks 21 of the two movable adjusting members 20 are the same, the distance of the opposite movement of the two movable adjusting members 20 can be kept equal, and the distance of the movement of the two light fixture mounting racks 10 in the same direction can be kept equal, so as to ensure that the light fixture mounted on the two light fixture mounting racks 10 is in the central position without being deviated to one side. Of course, in actual operation, the transmission gear 31 can be actively rotated to drive the two movable adjusting members 20 to move in the same direction, and the distance between the two light fixture mounting racks 10 can also be adjusted.

[0045] In this embodiment, the transmission gear 31 and the rack 21 are engaged to realize the synchronous movement of the two movable adjusting members 20 in opposite directions, which has the advantages of reliable work, simple structure and low manufacturing cost. Of course, other structures can also be used to realize the synchronous movement of the two movable adjusting members 20 in opposite directions, for example, the linkage mechanism 30 can be a multi-link mechanism. Specifically, the linkage mechanism 30 can comprise a center shaft, a first link and two second links. The center shaft penetrates the midpoint of the first link, and the first link can rotate around the center shaft. One end of each of the two second links is hingedly connected to one end of the first link, and the other end of each of the two second links is hingedly connected to one of the two movable adjusting members 20. In addition, limiting structures are arranged on opposite sides of the movable adjusting member 20 to ensure that the movable adjusting member 20 can only move linearly. Based on the principle of a seesaw, the synchronous movement of the two movable adjusting members 20 in opposite directions can be realized.

[0046] In one embodiment, as shown in the figure Figure 3As shown, the lamp fixing device further comprises a base 40 and a locking mechanism 50, the two movable adjusting members 20 are arranged on the base 40 and can move towards opposite directions relative to the base 40, and the locking mechanism 50 is used for locking the movable adjusting members 20 on the base 40. When the spacing of the two lamp mounting racks 10 is adjusted, the locking mechanism 50 is used to lock the movable adjusting members 20 on the base 40 to limit the movement of the movable adjusting members 20 relative to the base 40, so as to stabilize the spacing of the two lamp mounting racks 10, thereby facilitating the installation of the lamps. When it is needed to replace lamps of different sizes, the locking mechanism 50 is loosened to allow the movable adjusting members 20 to move relative to the base 40, and then the spacing of the two lamp mounting racks 10 can be adjusted according to the size of the lamps. Specifically, one end of the movable adjusting member 20 extends out of the base 40 and is connected with the lamp mounting rack 10, and by keeping the distance of the opposite movement of the two movable adjusting members 20 equal, the center of gravity of the lamps mounted on the two lamp mounting racks 10 can be stabilized.

[0047] In one embodiment, as shown in Figure 5 The base 40 is provided with two limiting protrusions 41, which are respectively located on the sides of the two movable adjusting members 20 away from the transmission gear 31. By arranging the limiting protrusions 41 on the base 40 and on the sides of the movable adjusting members 20 away from the transmission gear 31, the movement of the movable adjusting members 20 away from the adjusting gear can be limited, and the disengagement of the rack 21 from the adjusting gear can be avoided, thereby improving the working reliability.

[0048] In one embodiment, as shown in Figure 4 and Figure 5 The locking mechanism 50 comprises a fixed frame 51, a pressing member 52 and a cam 53. The fixed frame 51 is arranged on the base 40, the pressing member 52 is arranged on the side of the movable adjusting member 20 away from the base 40, and the cam 53 is located on the side of the pressing member 52 away from the movable adjusting member 20 and is rotationally connected to the fixed frame 51. When the cam 53 rotates, the pressing member 52 can press or loosen the movable adjusting member 20. The cam 53 is a member with a curved profile, which can press or loosen the movable adjusting member 20 when it rotates. When the cam 53 rotates to the position shown in Figure 4 , the pressing member 52 loosens the movable adjusting member 20, and when the cam 53 rotates to the position shown in Figure 5When the position is shown, the pressing member 52 presses the movable adjusting member 20. When the distance between the two lamp mounting frames 10 is adjusted, the cam 53 is rotated to make the pressing member 52 press the movable adjusting member 20, and the pressing member 52 is combined with the base 40 to clamp the movable adjusting member 20, so that the movement of the movable adjusting member 20 relative to the base 40 is limited, and the distance between the two lamp mounting frames 10 is stabilized. When the lamp of different size needs to be replaced, the cam 53 is rotated again to release the movable adjusting member 20, so that the movement of the movable adjusting member 20 relative to the base 40 is allowed, and then the distance between the two lamp mounting frames 10 can be adjusted according to the size of the lamp. In this embodiment, the pressing and releasing of the movable adjusting member 20 is realized by rotating the cam 53, which has the advantages of simple structure, low manufacturing cost and convenient operation. Of course, other structures can also be used to realize the fixing and releasing of the movable adjusting member 20, for example, the locking mechanism 50 can include a telescopic cylinder, the power output shaft of the telescopic cylinder is connected with the pressing member 52, and the telescopic movement of the power output rod of the telescopic cylinder can drive the pressing member 52 to move towards or away from the movable adjusting member 20, so as to realize the fixing and releasing of the movable adjusting member 20, and for example, the locking mechanism 50 can include a clamp, the clamp is provided with a clamping jaw, and the clamping jaw can clamp and release the movable adjusting member 20.

[0049] Since the two movable adjusting members 20 are connected through the linkage mechanism 30, the pressing member 52 can press one of the movable adjusting members 20, and when one movable adjusting member 20 is limited to move relative to the base 40, the other movable adjusting member 20 will also be limited. In order to enhance the limiting effect and improve the working reliability, in this embodiment, the two movable adjusting members 20 are located between the pressing member 52 and the base 40, and the pressing member 52 can press the two movable adjusting members 20 at the same time, so as to ensure that the two movable adjusting members 20 are stable and cannot move randomly.

[0050] In one embodiment, as shown in Figure 5 The pressing member 52 includes a pressing plate 521 and two pressing blocks 522, the pressing plate 521 is used to contact the cam 53, the two pressing blocks 522 are detachably mounted on the side of the pressing plate 521 away from the cam 53, and correspond to the two movable adjusting members 20 respectively. In work, the cam 53 applies pressure to the pressing plate 521, and the pressing plate 521 transmits the pressure to the two pressing blocks 522, and the two pressing plates 521 press the two movable adjusting members 20 on the base 40 respectively. The pressing block 522 is manufactured separately from the pressing plate 521 and then assembled, which on the one hand facilitates production, and on the other hand allows the pressing block 522 or the pressing plate 521 to be replaced separately, thereby reducing maintenance cost.

[0051] In one embodiment, as shown in Figure 5As shown, the locking mechanism 50 further comprises an elastic member 54, which is arranged between the base 40 and the pressing member 52. When the cam 53 abuts against the pressing member 52, the elastic member 54 is compressed. When the cam 53 is separated from the pressing member 52, the elastic member 54 restores to its original state and separates the pressing member 52 from the movable adjusting member 20. When the distance between the two lamp mounting racks 10 is adjusted, the cam 53 is rotated to push the pressing member 52 to move towards the base 40, so that the pressing member 52 presses the movable adjusting member 20 against the base 40 to limit the movement of the movable adjusting member 20 relative to the base 40, thereby stabilizing the distance between the two lamp mounting racks 10. In this process, the elastic member 54 arranged between the pressing member 52 and the base 40 is compressed. When it is necessary to replace the lamps of different sizes, the cam 53 is rotated to separate the cam 53 from the pressing member 52. At this time, the elastic member 54 restores to its original state and pushes the pressing member 52 to move away from the base 40. The pressing member 52 is then separated from the movable adjusting member 20. The movable adjusting member 20 is free from the pressure of the pressing member 52 and can move relative to the base 40 normally. Then, the distance between the two lamp mounting racks 10 can be adjusted according to the size of the lamps. Since the pressing member 52 can be completely separated from the movable adjusting member 20, the frictional force acting on the movable adjusting member 20 during movement is reduced, the movement is smoother, and the wear of the pressing member 52 is reduced, thereby prolonging the service life of the pressing member 52. Specifically, the elastic member 54 can be a compression spring or a spring plate.

[0052] In one embodiment, in combination with Figure 4 and Figure 6 As shown, the pressing member 52 is provided with two through holes 523, and the number of the fixing frames 51 is two. The two fixing frames 51 are arranged at intervals and are respectively movably arranged through the two through holes 523. The locking mechanism 50 further comprises a rotating shaft 55. The cam 53 is located between the two fixing frames 51 and is rotatably connected to the two fixing frames 51 through the rotating shaft 55. By arranging the two fixing frames 51 and arranging the cam 53 between the two fixing frames 51 through the rotating shaft 55, the rotatable connection between the cam 53 and the fixing frames 51 is achieved, and the stability of the rotation of the cam 53 is improved. By arranging the two through holes 523 in the pressing member 52 and movably arranging the two fixing frames 51 through the two through holes 523, the positioning of the pressing member 52 is achieved, and the movement of the pressing member 52 is guided, so that the pressing member 52 stably moves towards or away from the movable adjusting member 20. Specifically, the fixing frame 51 is in the form of a flat plate, which has the advantages of simple structure, easy manufacturing and low manufacturing cost. The fixing frame 51 can be fixed to the base 40 by screws. The through holes 523 are correspondingly provided in the form of square holes, which are matched with the cross-sectional shape of the fixing frame 51 to enhance the limiting and guiding effects. Specifically, the through holes 523 are arranged in the pressing plate 521 of the pressing member 52.

[0053] In one embodiment, as shown in Figure 4 The locking mechanism 50 further comprises a handle 56, one end of which is connected with the cam 53. In operation, the staff holds the handle 56 away from the cam 53, and rotates the handle 56 to drive the cam 53 to rotate, which is very convenient.

[0054] In one embodiment, as shown in Figure 4 and Figure 6 The linkage mechanism 30 further comprises a threaded fastener 32, which is screwed with the base 40 through the transmission gear 31, the transmission gear 31 can rotate around the threaded fastener 32 relative to the base 40, and the two ends of the elastic member 54 are connected with the pressing member 52 and the threaded fastener 32 respectively. The threaded fastener 32 plays two roles, on the one hand, it serves as the central axis of the rotation of the transmission gear 31, and on the other hand, it can limit the transmission gear 31 on the base 40 without falling off. It should be noted that the threaded fastener 32 does not need to be completely tightened to meet the rotation of the transmission gear 31 relative to the base 40. The threaded fastener 32 and the base 40 are fixed components that can cooperate with the moving pressing member 52 to compress the elastic member 54. If the elastic member 54 is connected to the base 40, the diameter of the elastic member 54 needs to be larger than the diameter of the transmission gear 31 to avoid interference between the two, and the size of the base 40 also needs to be larger. However, the present embodiment connects the elastic member 54 to the threaded fastener 32, which is conducive to reducing the size of the elastic member 54 and the base 40, making the overall structure more compact. Specifically, the transmission gear 31 is arranged between the two fixed frames 51, and the elastic member 54 corresponds to the center position of the pressing member 52, so that the movement of the pressing member 52 is more stable.

[0055] In one embodiment, as shown in Figure 2 The lamp fixing device further comprises a sliding rail 60 and a sliding block 70, the sliding rail 60 is arranged along the movement direction of the movable adjusting member 20, and the two lamp mounting racks 10 are connected with the sliding block 70, which cooperates with the sliding rail 60. Through the cooperation of the sliding block 70 and the sliding rail 60, it can ensure that the lamp mounting rack 10 moves along the fixed direction without deviation, and improve the adjustment accuracy of the two lamp mounting racks 10, thereby improving the assembly accuracy of the lamps. Specifically, the number of sliding rails 60 can be one, or can be divided into two, two sliding rails 60 are arranged corresponding to two lamp mounting racks 10 respectively, and the number of sliding blocks 70 connected with each sliding rail 60 is not limited, which can be one or more.

[0056] In one embodiment, as shown in Figure 1 and Figure 2As shown, the lamp fixing device further comprises a shell 80, both ends of the shell 80 in the movement direction of the movable adjusting piece 20 are provided with a through port 81, the movable adjusting piece 20 and the linkage mechanism 30 are arranged in the shell 80, and the two lamp mounting racks 10 pass through the two through ports 81 respectively. By arranging the shell 80, the movable adjusting piece 20 and the linkage mechanism 30 are accommodated in the shell 80, on the one hand, the movable adjusting piece 20 and the linkage mechanism 30 can be fixed and protected, and on the other hand, the appearance of the lamp fixing device is more beautiful. By arranging one through port 81 at each end of the shell 80 for the lamp mounting rack 10 to pass through, the lamp mounting rack 10 can be extended out of the shell 80 or retracted into the shell 80, so as to adjust the distance between the two lamp mounting racks 10. Specifically, the shell 80 comprises a bottom shell 82 and a cover plate 83, the cover plate 83 is detachably connected with the bottom shell 82, so as to facilitate maintenance of the movable adjusting piece 20 and the linkage mechanism 30, and the slide rail 60 and the base 40 are fixed on the bottom shell 82, and can be fixed by screws.

[0057] In one embodiment, in combination with Figure 1 and Figure 2 As shown, the shell 80 is provided with an operation port 84, one end of the fixed rack 51 rotatably connected with the cam 53 extends out of the shell 80 from the operation port 84, and the handle 56 connected with the cam 53 is located outside the shell 80, so that the worker can rotate the handle 56 outside the shell 80. Specifically, the operation port 84 is arranged on the cover plate 83 of the shell 80, by arranging the handle 56 outside the shell 80, the worker can directly rotate the handle 56 outside the shell 80 without disassembling the cover plate 83, and the operation is very convenient.

[0058] In one embodiment, when the handle 56 is rotated in the first clockwise direction to be parallel to the outer wall surface of the shell 80, the pressing piece 52 releases the movable adjusting piece 20, and when the handle 56 is rotated in the opposite direction of the first clockwise direction to be parallel to the outer wall surface of the shell 80, the pressing piece 52 presses the movable adjusting piece 20. When rotating the handle 56, the worker can judge whether the cam 53 is rotated in place by observing whether the handle 56 is parallel to the outer wall surface of the shell 80, and the operation is very convenient.

[0059] It should be noted that the above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A luminaire fixture, characterized by, The lamp fixing device comprises two lamp mounting racks (10), two movable adjusting members (20), and a linkage mechanism (30). The linkage mechanism (30) comprises a transmission gear (31), and the two movable adjusting members (20) are located on opposite sides of the transmission gear (31). The lamp fixing device further comprises a base (40) and a locking mechanism (50). The locking mechanism (50) comprises a fixing frame (51), a pressing member (52), and a cam (53).

2. The light fixture securement device of claim 1, wherein: The locking mechanism (50) further comprises a resilient member (54).

3. The light fixture securement device of claim 1, wherein: The pressing member (52) is provided with two through holes (523), and the number of the fixing frames (51) is two.

4. The light fixture securement device of claim 3, wherein: The linkage mechanism (30) comprises a transmission gear (31), and the two movable adjusting members (20) are located on opposite sides of the transmission gear (31).

5. The light fixture securement device of claim 4, wherein: The two movable adjusting members (20) are provided with the same rack (21) on the side facing the transmission gear (31), and the rack (21) is in mesh with the transmission gear (31).

6. The light fixture securement device of claim 5, wherein: ​ 7. The light fixture securement device of claim 5, wherein: ​ The linkage mechanism (30) further comprises a threaded fastener (32) which is threaded with the base (40) through the transmission gear (31), the transmission gear (31) can rotate around the threaded fastener (32) relative to the base (40), and the two ends of the elastic member (54) are connected with the press-fit member (52) and the threaded fastener (32) respectively.

8. The light fixture securement device of claim 4, wherein: The locking mechanism (50) further comprises a handle (56), one end of the handle (56) is connected with the cam (53).

9. A luminaire fixing arrangement according to any of claims 1 to 8, characterised in that: The lamp fixing device further comprises a sliding rail (60) and a sliding block (70), the sliding rail (60) is arranged along the movement direction of the movable adjusting member (20), the two lamp mounting racks (10) are connected with the sliding blocks (70), and the sliding blocks (70) are in sliding fit with the sliding rail (60).

10. A luminaire fixing arrangement according to any of claims 1 to 8, characterised in that: The lamp fixing device further comprises a shell (80), opposite ends of the shell (80) in the movement direction of the movable adjusting member (20) are provided with through openings (81), the movable adjusting member (20) and the linkage mechanism (30) are arranged in the shell (80), and the two lamp mounting racks (10) pass through the two through openings (81) respectively.

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