Adjustable lighting assembly and exhibition stand for exhibitions

Abstract

The present invention relates to the technical field of lighting components, and more specifically, to an adjustable lighting component and exhibition stand for exhibitions, comprising a lamp stand and a lamp holder, wherein a lamp body is provided at the first end of the lamp holder, and a first movable shaft and a second movable shaft are provided on the lamp holder, the first movable shaft and the second movable shaft being respectively movable in a first arc groove and a second arc groove provided in the lamp stand, and the first end of the lamp holder extending outward from the lamp stand and always facing the center position of the arc-shaped sliding stroke of the lamp holder. The adjustable lighting component and exhibition stand for exhibitions provided by the invention can direct the light emitted by the lamp body toward the exhibited items at any position of the lamp holder in the sliding stroke, thereby realizing oblique lighting of the upper lamp body on the sides of the exhibited items from different angles. There is no need for staff to use a multi-joint linkage method to adjust the position of the lamp body, thereby improving the efficiency of adjusting the illumination angle of the lamp body and facilitating practical operation.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting components, in particular to an adjustable lighting component and an exhibition stand for exhibitions. Background Art

[0002] Exhibitions are promotional activities designed to showcase products and technologies, expand channels, boost sales, and promote brands. Exhibition design involves leveraging the spatial environment, construction, engineering, visual communication, and high-tech exhibit facilities to present the intended information and content to the public during conferences, exhibitions, and expositions. This includes booth design, spatial layout design, graphic design, lighting design, and the corresponding exhibition hall design. Exhibition design is a creative design activity that significantly influences the audience's psychology, thoughts, and behavior. Common lighting components used in exhibition design include LED long-arm spotlights, downlights, spotlights, headlights, and cannon lights.

[0003] According to publication number CN221375567U, publication (announcement) date: 2024.07.19, an adjustable lighting assembly for exhibitions is disclosed, which relates to the field of lighting assemblies. In order to solve the problem in the prior art that existing exhibition lighting assemblies are fixedly installed in position and cannot be adjusted, personnel need to manually adjust the lighting assemblies when displaying different products, and manual adjustment takes a long time and is relatively troublesome. Each of the light assemblies is fixedly connected to a rotating part in the middle of the upper end, and the upper end of the light assembly is connected to an adjustment device. Both sides of the lower end of the adjustment device are fixedly connected to a drive box. A first servo motor is provided at the lower end of the adjustment device. The middle part of the adjustment device is fixedly connected to a limit tube. The limit tube of the adjustment device is connected to a supporting round rod. The middle upper ends of both sides of the adjustment device are provided with rectangular openings. The rectangular openings on both sides of the adjustment device pass through and are limited by rectangular limit rods.

[0004] In the prior art including the above-mentioned patents, a rotating part and a rotating shaft are used to realize the angular rotation of the lighting assembly, and an adjustment assembly is used to realize the horizontal position adjustment of the lighting assembly. However, when it comes to small exhibit items in exhibitions, it is often necessary to adjust the upper lighting assembly to illuminate the sides of the exhibit items from different angles. In actual operation, the horizontal position adjustment must be coordinated with the rotation angle adjustment process to realize the adjustment of the illumination angle of the lighting assembly, which makes the illumination angle adjustment efficiency of the lighting assembly for the exhibit items low and inconvenient for actual operation. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable lighting assembly and exhibition stand for use in exhibitions, so as to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: an adjustable lighting assembly for exhibitions, comprising a lamp stand and a lamp holder, wherein a lamp body is provided at the first end of the lamp holder, and a first movable axis and a second movable axis are provided on the lamp holder, wherein the first movable axis and the second movable axis are respectively located in a first arc groove and a second arc groove opened in the lamp stand and move, and the first end of the lamp holder extends out of the lamp stand and always faces the center position of the arc-shaped sliding stroke of the lamp holder.

[0007] Preferably, a first bevel tooth portion is provided on the first movable shaft, and a second bevel tooth portion is provided on the second movable shaft. The first bevel tooth portion is coupled to the first bevel tooth groove opened at the bottom of the first arc groove, and the second bevel tooth portion is coupled to the second bevel tooth groove opened at the bottom of the second arc groove.

[0008] Preferably, a driving assembly is symmetrically arranged in the lamp holder, and the driving assembly includes a driving member that slides in an arc shape relative to the lamp holder to push the lamp holder to move.

[0009] Preferably, a buffer plate is symmetrically and movably arranged on the lamp holder and extends outward from the lamp holder in a default state, and the driving member is driven to slide relative to the lamp holder to squeeze the buffer plate and move it tightly against the lamp holder.

[0010] Preferably, a rotating shaft is rotatably provided on the buffer plate, a rotating sleeve is threadedly connected to the rotating shaft, and a third bevel tooth portion and a fourth bevel tooth portion are respectively provided on the rotating shaft and the rotating sleeve. In the default state of the buffer plate, the third bevel tooth portion is coupled with the first bevel tooth portion, and the fourth bevel tooth portion is coupled with the second bevel tooth portion.

[0011] Preferably, an arched portion is provided in the lamp holder, and a flexible retaining ring facing the arched portion is provided on the rotating sleeve. The rotating sleeve moves axially relative to the rotating shaft to drive the flexible retaining ring to move closer to or away from the arched portion.

[0012] Preferably, the rotating shaft is provided with a worm spring for driving the rotating sleeve to rotate and return to the same axial angle as the rotating shaft.

[0013] Preferably, a movable part is provided on the buffer plate, and the movable part is movably provided in a movable hole opened in the lamp holder, and the diameter of the movable hole is larger than the diameter of the movable part so that the buffer plate can be vertically deflected, and a resist plate and a second elastic member are symmetrically provided in the lamp holder, and the resist plate is driven by the second elastic member to contact the vertical sides of the movable part.

[0014] Preferably, a first elastic member for driving the buffer plate to return to a default state is symmetrically provided on the lamp holder.

[0015] An exhibition stand comprises the adjustable lighting assembly for exhibitions described in the above solution.

[0016] In the above-mentioned technical solution, the present invention provides an adjustable lighting assembly and exhibition stand for exhibitions, which have the following beneficial effects: The light emitted by the lamp body can be directed toward the exhibited items at any position of the lamp holder within its sliding travel. The lamp holder can be driven to slide in an arc shape, causing the lamp body to rotate around the position of the exhibited item, thereby enabling the upper lamp body to illuminate the sides of the exhibited item from different angles. This eliminates the need for staff to use multiple joints to adjust the lamp body position, thereby improving the efficiency of adjusting the lamp body's illumination angle and facilitating practical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 A schematic cross-sectional view of the overall structure at the first movable axis provided by an embodiment of the present invention;

[0020] Figure 3 A schematic cross-sectional view of the overall structure of a lamp holder provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of a portion of the structure of a lamp stand provided by an embodiment of the present invention;

[0022] Figure 5 A schematic structural diagram of a lamp holder, a first movable shaft, a second movable shaft, a rotating shaft, and a rotating sleeve provided in an embodiment of the present invention;

[0023] Figure 6 A schematic structural diagram of a lamp holder, a first movable shaft, a second movable shaft, a rotating shaft, and a rotating sleeve provided in an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the exploded structure of the rotating shaft, rotating sleeve, buffer plate and spiral spring provided in an embodiment of the present invention;

[0025] Figure 8 A schematic structural diagram of a driving member, a driving gear, and a driving motor provided in an embodiment of the present invention;

[0026] Figure 9 The embodiment of the present invention provides Figure 3 A local enlarged schematic diagram of point A in the middle.

[0027] Description of reference numerals:

[0028] 1. Lamp holder; 11. Active cavity; 12. First arc groove; 121. First stepped groove; 122. First oblique tooth groove; 13. Second arc groove; 131. Second stepped groove; 132. Second oblique tooth groove; 14. Arched portion; 15. Mounting portion; 151. Sliding groove; 16. Connecting portion; 2. Lamp holder; 21. Accommodating groove; 22. Active hole; 23. Rotating hole; 31. First active axis; 311. First oblique tooth portion; 32. Second active axis; 3 21. Second oblique tooth portion; 4. Buffer plate; 41. Extension portion; 42. Movable portion; 51. Rotating shaft; 511. Third oblique tooth portion; 512. Threaded column portion; 52. Rotating sleeve; 521. Fourth oblique tooth portion; 522. Threaded hole; 53. Flexible butt ring; 6. Volute spring; 71. First elastic member; 72. Butt plate; 73. Second elastic member; 81. Driving member; 811. Push plate; 82. Driving gear; 83. Driving motor; 91. Lamp body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0030] like Figure 1-9 As shown, an adjustable lighting assembly and exhibition stand for exhibitions include a lamp stand 1 and a lamp holder 2. A lamp body 91 is provided at the first end of the lamp holder 2. A first movable shaft 31 and a second movable shaft 32 are provided on the lamp holder 2. The first movable shaft 31 and the second movable shaft 32 are respectively located in a first arc groove 12 and a second arc groove 13 opened in the lamp stand 1 and move. The first end of the lamp holder 2 extends out of the lamp stand 1 and always faces the center of the arc-shaped sliding stroke of the lamp holder 2.

[0031] Specifically, the lamp stand 1 is connected to an external moving device through the connecting portion 16, so that the lamp stand 1 can be moved horizontally or vertically by using the external moving device. Figure 4 As shown, a movable cavity 11 is provided on the lamp holder 1, and a first arc groove 12 and a second arc groove 13 are provided in the movable cavity 11, and the lamp holder 2 is provided in the movable cavity 11 so that the first movable shaft 31 and the second movable shaft 32 can move in the first arc groove 12 and the second arc groove 13 respectively. When the first movable shaft 31 and the second movable shaft 32 are located in the first arc groove 12 and the second arc groove 13 and move, the lamp holder 2 can slide in an arc shape, and as shown in FIG. Figure 3The vertical lower end of the lamp holder 2 is shown as the first end, and the lamp body 91 is arranged on the vertical lower end of the lamp holder 2, so that the light emitted by the lamp body 91 on the lamp holder 2 is always directed toward the center of the arc-shaped sliding stroke of the lamp holder 2.

[0032] During actual use, the exhibit items can be placed vertically below the lamp stand 1, and the height of the lamp stand 1 can be adjusted so that the exhibit items are located at the center of the arc-shaped sliding stroke of the lamp holder 2. At this time, if the lamp body 91 is turned on, the light emitted by the lamp body 91 can be directed toward the exhibit items at any position of the lamp holder 2 in the sliding stroke. If the angle of illumination on the exhibit items needs to be changed, the lamp holder 2 can be driven to slide in an arc so that the lamp body 91 rotates around the position of the exhibit items, thereby achieving the effect of the upper lamp body 91 illuminating the sides of the exhibit items from different angles. There is no need for staff to use a multi-joint linkage method to adjust the position of the lamp body 91, thereby improving the efficiency of adjusting the illumination angle of the lamp body 91 and facilitating actual operation.

[0033] The external mobile device is common technical knowledge to those skilled in the art and will not be described in detail here.

[0034] In the above technical solution, the light emitted by lamp body 91 can be directed toward the exhibited object at any position within the sliding range of lamp holder 2. Lamp holder 2 can be driven to slide in an arc, causing lamp body 91 to rotate about the position of the exhibited object, thereby enabling the upper lamp body 91 to illuminate the sides of the exhibited object from different angles. This eliminates the need for staff to use multiple joints to adjust the position of lamp body 91, thereby improving the efficiency of adjusting the illumination angle of lamp body 91 and facilitating practical operation.

[0035] As another embodiment provided by the present invention, a first bevel tooth portion 311 is provided on the first movable shaft 31, and a second bevel tooth portion 321 is provided on the second movable shaft 32. The first bevel tooth portion 311 is coupled to the first bevel tooth groove 122 opened at the bottom of the first arc groove 12, and the second bevel tooth portion 321 is coupled to the second bevel tooth groove 132 opened at the bottom of the second arc groove 13.

[0036] Specifically, such as Figure 6As shown, the first movable shaft 31 and the second movable shaft 32 are both axially rotatably arranged on the rotating hole 23 of the lamp holder 2, and a first stepped groove 121 is provided in the first arc groove 12, and a second stepped groove 131 is provided in the second arc groove 13. A plurality of first oblique tooth grooves 122 spaced apart along the arc bottom surface are provided at the vertical bottom of the first stepped groove 121, and a plurality of second oblique tooth grooves 132 spaced apart along the arc bottom surface are provided at the vertical bottom of the second stepped groove 131. When the first movable shaft 31 and the second movable shaft 32 are in the When moving in the first arc groove 12 and the second arc groove 13, the first beveled tooth portion 311 on the first movable shaft 31 is rotationally coupled with the first beveled tooth groove 122, and the second beveled tooth portion 321 on the second movable shaft 32 is coupled with the second beveled tooth groove 132, thereby utilizing the first beveled tooth portion 311, the first beveled tooth groove 122, the second beveled tooth portion 321 and the second beveled tooth groove 132 to improve the stability of the lamp holder 2 when it is located in the lamp holder 1 and moves in an arc shape, thereby reducing accidental vibration during the movement of the lamp holder 2 and improving the protection of the lamp body 91.

[0037] Secondly, Figure 5 As shown, the teeth on the first movable shaft 31 and the second movable shaft 32 are all helical teeth, such as Figure 4 As shown, the mating grooves of the first arc groove 12 and the second arc groove 13 are both oblique grooves, and the groove depth of the oblique grooves in the first arc groove 12 and the second arc groove 13 is greater at the end facing away from the lamp holder 2. This allows the first movable shaft 31 and the second movable shaft 32 to be more tightly coupled to the inner sides of the first arc groove 12 and the second arc groove 13, thereby improving the axial relative stability between the first movable shaft 31 and the second movable shaft 32 and the first arc groove 12 and the second arc groove 13. This prevents the first movable shaft 31 and the second movable shaft 32 from accidentally falling out of the first arc groove 12 and the second arc groove 13, causing the lamp holder 2 to fall off or become loose, thereby improving the installation stability and sliding safety of the lamp holder 2 on the lamp holder 1.

[0038] As another embodiment provided by the present invention, a driving assembly is symmetrically arranged in the lamp holder 1 , and the driving assembly includes a driving member 81 that slides in an arc shape relative to the lamp holder 2 to push the lamp holder 2 to move.

[0039] Specifically, the driving assembly also includes a driving gear 82 and a driving motor 83. The driving gear 82 is coupled to the tooth groove on the driving member 81, and the driving gear 82 is rotatably arranged in the lamp holder 1. The output end of the driving motor 83 is fixedly connected to the driving gear 82, and the end of the driving member 81 facing the lamp holder 2 is provided with a push plate 811, and the driving member 81 is slidably arranged in an arc-shaped sliding groove 151 opened in the mounting portion 15 of the lamp holder 1.

[0040] Therefore, the driving motor 83 can be used to control the driving member 81 to slide closer relative to the lamp holder 2 through the driving gear 82, and the two driving members 81 can slide closer relative to each other so that the push plate 811 is squeezed on both sides of the lamp holder 2. Then, the two driving members 81 can be synchronized and slide in the same direction in an arc to push the lamp holder 2 to slide in an arc, thereby completing the adjustment drive of the light irradiation angle of the lamp body 91. The driving member 81 is used to clamp the lamp holder 2 and synchronously push the lamp holder 2 to move in an arc, thereby improving the convenience of adjusting the position of the lamp holder 2 and also improving the stability of the lamp holder 2 during the arc movement.

[0041] The driving member 81 can first slide in an arc shape relative to the lamp holder 2, so that the driving member 81 can slide away from the lamp holder 2 to unlock the lamp holder 2. At this time, the staff can manually adjust the lamp holder 2 to more finely adjust the illumination angle of the lamp body 91, thereby utilizing the arc-shaped movable driving member 81 to retain the manual adjustment method of the lamp holder 2 and the lamp body 91, thereby improving the fineness and accuracy of the illumination light adjustment.

[0042] The drive motor 83 , the electric control program of the drive motor 83 , and the circuit are all common technical knowledge to those skilled in the art and will not be described in detail here.

[0043] As another embodiment provided by the present invention, a buffer plate 4 is symmetrically and movably arranged on the lamp holder 2 and extends outward from the lamp holder 2 in a default state. The driving member 81 is driven to slide relative to the lamp holder 2 to squeeze the buffer plate 4 and move it tightly against the lamp holder 2.

[0044] Specifically, a receiving groove 21 is provided on both sides of the lamp holder 2. Figure 9 As shown, the buffer plate 4 extends outward from the accommodating groove 21 in the default state, and when the driving member 81 is driven to slide in an arc shape so that the push plate 811 approaches the lamp holder 2, the push plate 811 first contacts the buffer plate 4 and squeezes the buffer plate 4 to move tightly into the accommodating groove 21, and then the two driving members 81 pass through the buffer plate 4 to complete the clamping of the lamp holder 2, thereby utilizing the buffer plate 4 to achieve buffering and protection when the push plate 811 approaches the clamped lamp holder 2, thereby preventing the lamp holder 2 and the internal lamp body 91 from being damaged by the clamping impact.

[0045] Furthermore, the lamp holder 2 is symmetrically provided with a first elastic member 71 for driving the buffer plate 4 to return to the default state, as shown in FIG. Figure 9 As shown, the first elastic member 71 is arranged in the receiving groove 21, and the first elastic member 71 is located between the buffer plate 4 and the lamp holder 2, so that the first elastic member 71 is used to push the buffer plate 4 away from the lamp holder 2 to reset to the default state. When the driving member 81 squeezes the buffer plate 4 to move tightly into the receiving groove 21, the first elastic member 71 is compressed, deformed and contracted to achieve buffering and deceleration in the process of the driving member 81 clamping the lamp holder 2.

[0046] The first elastic member 71 can be replaced by any elastic object known to those skilled in the art, such as a spring, an airbag, and an elastic plate.

[0047] As another embodiment provided by the present invention, a rotating shaft 51 is rotatably provided on the buffer plate 4, a rotating sleeve 52 is threadedly connected to the rotating shaft 51, and a third bevel tooth portion 511 and a fourth bevel tooth portion 521 are respectively provided on the rotating shaft 51 and the rotating sleeve 52. In the default state of the buffer plate 4, the third bevel tooth portion 511 is coupled with the first bevel tooth portion 311, and the fourth bevel tooth portion 521 is coupled with the second bevel tooth portion 321.

[0048] Specifically, such as Figure 5 As shown, an extension portion 41 is provided on the buffer plate 4, and the rotating shaft 51 is axially rotatably provided on the extension portion 41. The buffer plate 4 extends the rotating shaft 51 to the other side of the lamp holder 2 through the extension portion 41, thereby achieving that when the lamp holder 2 is in the default state, the third bevel tooth portion 511 of the rotating shaft 51 is coupled with the first bevel tooth portion 311, and the fourth bevel tooth portion 521 is coupled with the second bevel tooth portion 321.

[0049] The rotating shaft 51 is provided with a threaded column 512 , and the rotating sleeve 52 is provided with a threaded hole 522 . The rotating sleeve 52 is installed on the rotating shaft 51 through the threaded hole 522 by threaded engagement.

[0050] When the driving member 81 slides away from the lamp holder 2 to release the lamp holder 2, the buffer plate 4 is driven by the first elastic member 71 to return to its default state. At this time, the third beveled tooth portion 511 is coupled to the first beveled tooth portion 311, and the fourth beveled tooth portion 521 is coupled to the second beveled tooth portion 321. Because bevel gears have greater coupling resistance than conventional gears, the third beveled tooth portion 511 and the fourth beveled tooth portion 521 are used to apply rotational resistance to the first movable shaft 31 and the second movable shaft 32. This allows the lamp holder 2 to remain in its original position when not pushed by an external force. However, a worker can still manually push the lamp holder 2 to move in an arc, causing the first movable shaft 31 and the second movable shaft 32 to rotate axially, thereby driving the rotating shaft 51 and the rotating sleeve 52 to rotate axially. This allows manual adjustment of the lamp holder 2 while retaining its position. The lamp holder 2 can remain in its original position when not pushed by the hand, thereby facilitating manual adjustment of the lamp holder 2 and the lamp body 91.

[0051] When the driving member 81 is clamped on both sides of the lamp holder 2 to use the driving motor 83 to adjust the lamp holder 2 and the lamp body 91, the driving member 81 squeezes the buffer plate 4 tightly into the accommodating groove 21, and the rotating shaft 51 and the rotating sleeve 52 move with the buffer plate 4, thereby separating the third bevel tooth portion 511 from the first bevel tooth portion 311, and separating the fourth bevel tooth portion 521 from the second bevel tooth portion 321, so that the first movable shaft 31 and the second movable shaft 32 can rotate axially, thereby facilitating mechanical adjustment of the position of the lamp holder 2 and the lamp body 91.

[0052] As another embodiment provided by the present invention, an arched portion 14 is provided in the lamp holder 2, and a flexible retaining ring 53 facing the arched portion 14 is provided on the rotating sleeve 52. The rotating sleeve 52 moves axially relative to the rotating shaft 51 to drive the flexible retaining ring 53 to move closer to or away from the arched portion 14.

[0053] Specifically, the diameters of the first movable shaft 31 and the second movable shaft 32 are equal, and the outer diameters of the first helical tooth portion 311 and the second helical tooth portion 321 are equal. Figure 2 As shown, the flexible retaining ring 53 provided on the rotating sleeve 52 faces the arched portion 14. When the lamp holder 2 moves in an arc shape within the lamp holder 1, the center of the arc-shaped sliding stroke between the first movable shaft 31 and the lamp holder 2 is located at position a, while the center of the arc-shaped sliding stroke between the second movable shaft 32 and the lamp holder 2 is located at position b, with a > b. Consequently, during the movement of the lamp holder 2, the angular velocity of the first movable shaft 31 is greater than the angular velocity of the second movable shaft 32. Therefore, when the lamp holder 2 slides in an arc shape so that the first and second movable shafts 31 and 32 are positioned within the first and second arc grooves 12 and 13, the first beveled teeth 311 drive the rotating shaft 51 in axial rotation, while the second beveled teeth 321 drive the rotating sleeve 52 in axial rotation. The axial rotation speed of the rotating shaft 51 is greater than the axial rotation speed of the rotating sleeve 52, causing the rotating sleeve 52 to rotate relative to the rotating shaft 51. This allows the rotating sleeve 52 to slide axially relative to the rotating shaft 51, driving the flexible retaining ring 53 to move toward or away from the arched portion 14.

[0054] When the driving member 81 moves away and no longer clamps the lamp holder 2, the buffer plate 4 is in a default state, the rotating shaft 51 is coupled to the first movable shaft 31, and the rotating sleeve 52 is coupled to the second movable shaft 32. Figure 2 As shown, when a worker manually pushes the lamp holder 2 to slide and push toward the left side of the first arc groove 12, the first movable shaft 31 and the second movable shaft 32 rotate counterclockwise. At the same time, due to the angular velocity difference between the first movable shaft 31 and the second movable shaft 32, the rotating sleeve 52 on the left side of the lamp holder 2 slides and rotates axially relative to the rotating shaft 51, thereby driving the flexible collar 53 toward the arched portion 14. Meanwhile, the rotating sleeve 52 on the left side of the right side of the lamp holder 2 slides and rotates axially relative to the rotating shaft 51, thereby driving the flexible collar 53 away from the arched portion 14, thereby gradually increasing the resistance of the lamp holder 2 in the process of sliding toward the left end of the first arc groove 12.

[0055] Conversely, when a worker manually pushes the lamp holder 2 toward the right side of the first arc slot 12 for sliding adjustment, the first movable shaft 31, second movable shaft 32, rotating shaft 51, and rotating sleeve 52 gradually increase the resistance of the lamp holder 2 as it slides toward the left end of the first arc slot 12. This prevents the lamp holder 2 from sliding rapidly downward due to the gradual decrease in the supporting force at the ends of the arc slot as the ends of the arc slot slide closer together. Furthermore, the speed difference between the first movable shaft 31 and second movable shaft 32, in conjunction with the rotating shaft 51, rotating sleeve 52, and flexible collar 53, ensures stability as the lamp holder 2 slides within the arc slot, allowing the lamp holder 2 to move smoothly within the arc slot and facilitate manual adjustment.

[0056] As another embodiment provided by the present invention, a spiral spring 6 is provided on the rotating shaft 51 for driving the rotating sleeve 52 to rotate and return to the same axial angle as the rotating shaft 51 .

[0057] Specifically, such as Figure 5 As shown, a worm spring 6 is disposed on the rotating shaft 51. The inner end of the worm spring 6 is fixedly connected to the rotating shaft 51, and the outer end of the worm spring 6 is fixedly connected to the rotating sleeve 52. When the first movable shaft 31 and the second movable shaft 32 drive the rotating sleeve 52 to rotate and move axially relative to the rotating shaft 51 due to the speed difference, the worm spring 6 is tensilely deformed, coiled, and stretched. When the buffer plate 4 is pressed tightly against the accommodating groove 21, the worm spring 6 is elastically reset and drives the rotating sleeve 52 to return to the same axial angle as the rotating shaft 51. Thus, the worm spring 6 is used to reset the rotating sleeve 52, facilitating actual adjustment.

[0058] Secondly, the worm spring 6 is used to keep the rotating shaft 51 and the rotating sleeve 52 at the same axial angle, and the first movable shaft 31 and the second movable shaft 32 will inevitably produce a speed difference during rotation. Therefore, the worm spring 6 can also increase the rotational resistance of the first movable shaft 31 and the second movable shaft 32, thereby further improving the stability of the lamp holder 2 in its original position when it is not pushed by external force, which is convenient for actual operation.

[0059] As another embodiment provided by the present invention, a movable portion 42 is provided on the buffer plate 4, and the movable portion 42 is movably provided in the movable hole 22 opened in the lamp holder 2, and the diameter of the movable hole 22 is larger than the diameter of the movable portion 42 so that the buffer plate 4 can be vertically deflected, and abutment plates 72 and a second elastic member 73 are symmetrically provided in the lamp holder 2, and the butt plate 72 is driven by the second elastic member 73 to contact the vertical sides of the movable portion 42.

[0060] Specifically, such as Figure 9 As shown, the movable portion 42 is movably disposed in the movable hole 22 , and an annular wing plate is provided at the end of the movable portion 42 to prevent the movable portion 42 from completely escaping from the outside of the movable hole 22 , thereby improving the stability of the buffer plate 4 when it remains in the default state.

[0061] The second elastic member 73 in the lamp holder 2 pushes the push plate 72 against the vertical sides of the movable portion 42, and the diameter of the movable hole 22 is larger than that of the movable portion 42. As a result, when the push plate 811 of the driving member 81 moves toward the buffer plate 4, the push plate 811 first contacts the end of the buffer plate 4 near the lamp body 91, and then pushes the buffer plate 4 to undergo a certain vertical deflection before being squeezed into the receiving groove 21 by the push plate 811. This avoids the problem of the buffer plate 4 being damaged by the tilting squeezing force of the driving member 81, thereby improving the service life of the buffer plate 4. In addition, the push plate 72 and the second elastic member 73 enable the buffer plate 4 to be reset to be parallel to the bottom of the receiving groove 21, thereby further improving the safety and buffering effect of the buffer plate 4.

[0062] Furthermore, if the lamp holder 2 is tilted so that the lamp body 91 is tilted to illuminate the exhibits, the end of the lamp holder 2 where the lamp body 91 is provided is subjected to greater gravitational pressure, and thus the second movable shaft 32 may be located in the second arc groove 13 and slip toward the end of the second arc groove 13, thereby causing the light emitted by the lamp body 91 to deviate from the center position of the original arc-shaped sliding stroke of the lamp holder 2, thereby affecting the lighting angle of the exhibits.

[0063] At this point, the driving member 81 can be first slid relative to the lamp holder 2 to approach and clamp it, and the driving member 81 can be used to rotate and reset the first movable shaft 31 of the lamp holder 2 to the middle of the first arc groove 12, so that the lamp holder 2 and the lamp body 91 are approximately in a vertical state. Then, the driving member 81 is first moved away from the lamp holder 2, and the buffer plate 4 is driven to reset by the first elastic member 71, and the rotating shaft 51 and the rotating sleeve 52 move to lock the first movable shaft 31 and the second movable shaft 32. Then, the driving member 81 is slid closer to the buffer plate 4, and the push plate 811 first contacts the end of the buffer plate 4 close to the lamp body 91, and then pushes the buffer plate 4 to a certain vertical deflection. During the deflection of the buffer plate 4, the rotating sleeve 52 first deflects and releases the coupling with the second bevel tooth portion 321, while the rotating shaft 51 still remains coupled with the first bevel tooth portion 311. At this time, since the first movable shaft 31 is still locked by the coupling resistance of the rotating shaft 51, the second movable shaft 32 is not affected by the resistance and can be located in the second arc groove 13 and slide under gravity, so that the lamp holder 2 can slide to a vertical shape under gravity. The rotating shaft 51, the rotating sleeve 52 and gravity are used to complete the vertical calibration of the lamp holder 2, and the lamp body 91 is adjusted to the original arc sliding stroke center position of the lamp holder 2 to ensure the stability of the illumination angle of the lamp body 91.

[0064] The second elastic member 73 can be replaced by any elastic object known to those skilled in the art, such as a spring, an airbag, and an elastic plate.

[0065] Working Principle: First, place the exhibit object vertically below the lamp stand 1, and adjust the height of the lamp stand 1 so that the exhibit object is at the center of the arc-shaped sliding stroke of the lamp holder 2. If the angle of illumination onto the exhibit object needs to be changed, the two driving members 81 can be synchronized and arc-slid in the same direction to push the lamp holder 2 to slide in the arc, thereby adjusting the light illumination angle of the lamp body 91. Alternatively, both driving members 81 can be slid away from the lamp holder 2 to unlock the lamp holder 2. At this time, the staff can manually adjust the lamp holder 2 to more finely adjust the illumination angle of the lamp body 91.

[0066] When the light emitted by the lamp body 91 deviates from the center position of the original arc-shaped sliding stroke of the lamp holder 2, the driving member 81 first slides toward and clamps the lamp holder 2, and the driving member 81 rotates and resets the first movable shaft 31 of the lamp holder 2 to the middle of the first arc groove 12, so that the lamp holder 2 and the lamp body 91 are approximately in a vertical state. Then, the driving member 81 is first moved away from the lamp holder 2, and the buffer plate 4 is driven to reset by the first elastic member 71, and the rotating shaft 51 and rotating sleeve 52 move to lock the first movable shaft 31 and the second movable shaft 32. Then, the driving member 81 is slid toward the buffer plate 4, and the push plate 811 first contacts the end of the buffer plate 4 near the lamp body 91, thereby pushing the buffer plate 4 to a certain vertical deflection. During the deflection of the buffer plate 4, the rotating sleeve 52 first deflects and releases the coupling with the second bevel gear portion 321, while the rotating shaft 51 remains coupled with the first bevel gear portion 311. At this time, since the first movable shaft 31 is still locked by the coupling resistance of the rotating shaft 51, the second movable shaft 32 is not affected by the resistance and can slide in the second arc groove 13 under the force of gravity, so that the lamp holder 2 can slide to a vertical shape under the force of gravity, and the vertical positioning of the lamp holder 2 is completed by using the rotating shaft 51, the rotating sleeve 52 and gravity.

[0067] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An adjustable lighting assembly for exhibitions, characterized in that: The invention comprises a lamp holder (1) and a lamp base (2), wherein a lamp body (91) is provided at a first end of the lamp base (2), and a first movable shaft (31) and a second movable shaft (32) are provided on the lamp base (2), wherein the first movable shaft (31) and the second movable shaft (32) are respectively located in a first arc groove (12) and a second arc groove (13) opened in the lamp holder (1) and move, and the first end of the lamp base (2) extends out of the lamp holder (1) and always faces the center position of the arc-shaped sliding stroke of the lamp base (2); The first movable shaft (31) is provided with a first beveled tooth portion (311), the second movable shaft (32) is provided with a second beveled tooth portion (321), the lamp holder (2) is symmetrically and movably arranged with a buffer plate (4) extending outward from the lamp holder (2) in a default state, the buffer plate (4) is rotatably provided with a rotating shaft (51), the rotating shaft (51) is threadedly connected with a rotating sleeve (52), the rotating shaft (51) and the rotating sleeve (52) are respectively provided with a third beveled tooth portion (511) and a fourth beveled tooth portion (521), and the buffer plate (4) is configured such that, in a default state, the third beveled tooth portion (511) is coupled to the first beveled tooth portion (311), and the fourth beveled tooth portion (521) is coupled to the second beveled tooth portion (321).

2. The adjustable lighting assembly for exhibitions according to claim 1, characterized in that: The first oblique tooth portion (311) is coupled to a first oblique tooth groove (122) opened at the bottom of the first arc groove (12), and the second oblique tooth portion (321) is coupled to a second oblique tooth groove (132) opened at the bottom of the second arc groove (13).

3. The adjustable lighting assembly for exhibitions according to claim 2, characterized in that: A driving assembly is symmetrically arranged in the lamp holder (1), and the driving assembly comprises a driving member (81) that slides in an arc shape relative to the lamp holder (2) to push the lamp holder (2) to move.

4. The adjustable lighting assembly for exhibitions according to claim 3, characterized in that: The driving member (81) is driven to slide relative to the lamp holder (2) to squeeze the buffer plate (4) so ​​that it is tightly attached to the lamp holder (2).

5. The adjustable lighting assembly for exhibitions according to claim 4, characterized in that: An arched portion (14) is provided in the lamp holder (2), and a flexible retaining ring (53) facing the arched portion (14) is provided on the rotating sleeve (52). The rotating sleeve (52) moves axially relative to the rotating shaft (51) to drive the flexible retaining ring (53) to move closer to or farther from the arched portion (14).

6. The adjustable lighting assembly for exhibitions according to claim 5, characterized in that: The rotating shaft (51) is provided with a worm spring (6) for driving the rotating sleeve (52) to rotate and return to the same axial angle as the rotating shaft (51).

7. The adjustable lighting assembly for exhibitions according to claim 5, characterized in that: The buffer plate (4) is provided with a movable portion (42), the movable portion (42) being movably arranged in a movable hole (22) provided in the lamp holder (2), and the diameter of the movable hole (22) is larger than the diameter of the movable portion (42) so that the buffer plate (4) can be vertically deflected, and a support plate (72) and a second elastic member (73) are symmetrically provided in the lamp holder (2), and the support plate (72) is driven by the second elastic member (73) to contact the vertical sides of the movable portion (42).

8. The adjustable lighting assembly for exhibitions according to claim 3, characterized in that: A first elastic member (71) for driving the buffer plate (4) to return to a default state is symmetrically provided on the lamp holder (2).

9. An exhibition stand, characterized in that: The adjustable lighting assembly for exhibitions comprises the adjustable lighting assembly described in any one of claims 1 to 8.

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