Adjustable light assembly for exhibition and exhibition rack

Abstract

The invention relates to the technical field of light assemblies, in particular to an adjustable light assembly for an exhibition and an exhibition shelf, comprising a lamp holder and a lamp holder, the first end of the lamp holder is provided with a lamp body, and the lamp holder is provided with a first movable shaft and a second movable shaft; the first movable shaft and the second movable shaft are located in a first arc groove and a second arc groove formed in the lamp holder to move correspondingly, and the first end of the lamp holder extends out of the outer side of the lamp holder and always faces the circle center position of the arc-shaped sliding stroke of the lamp holder. According to the adjustable lamplight assembly for the exhibition and the exhibition frame, the lamp holder is located at any position in the sliding stroke, so that light rays emitted by the lamp bodies can face exhibition articles, and therefore the lamp bodies above can light the peripheral sides of the exhibition articles in the inclined direction from different angles. A worker does not need to adjust the position of the lamp body in a multi-joint linkage mode, so that the adjusting efficiency of the irradiation angle of the lamp body is improved, and actual operation and use are facilitated.

Description

Technical Field

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

[0002] An exhibition is a promotional activity for displaying products and technologies, expanding channels, promoting sales, and spreading brands. Exhibition layout refers to the use of the spatial environment in conferences, exhibitions, and expos, and by means of construction, engineering, visual communication, etc., with the help of exhibition facilities and high-tech products, to present the information and content to be disseminated to the public. This includes booth design, spatial layout design, graphic design, lighting prop design, and corresponding exhibition hall design, etc. Exhibition design is a creative design activity that has a significant impact on the psychology, thinking, and behavior of the audience. Various lighting components commonly used in exhibition layout include LED long-arm spotlights, downlights, spotlights, car lights, and cannon lights.

[0003] According to the patent with publication number CN221375567U, publication (announcement) date: July 19, 2024, an adjustable lighting component for exhibitions is disclosed, which relates to the field of lighting components. To solve the problem in the prior art that existing exhibition lighting components are all fixedly installed in place and cannot be adjusted, and when displaying different products, personnel need to manually adjust the lighting components, which takes a long time and is rather troublesome. In the middle of the upper end of each lighting component, a rotating part is fixedly connected. The upper end of each lighting component is connected with an adjustment device. On both sides of the lower end of the adjustment device, a driving box is fixedly connected. At the lower end inside the adjustment device, a first servo motor is arranged. In the middle of the adjustment device, a limiting tube is fixedly connected. Inside the limiting tube of the adjustment device, a supporting round rod is connected. At the upper middle part on both sides of the adjustment device, rectangular openings are arranged. The rectangular limiting rod passes through and is limitedly connected through the rectangular openings on both sides of the adjustment device.

[0004] In the prior art including the above patent, the rotation part and the rotating shaft are used to realize the angular rotation of the lighting component, and the adjustment component is used to realize the horizontal position adjustment of the lighting component. However, for small exhibition items in exhibitions, it is often necessary to adjust the upper lighting component to obliquely illuminate the periphery of the exhibition item from different angles. In actual operation, it is necessary to cooperate with the horizontal position adjustment during the process of adjusting the rotation angle to realize the adjustment of the irradiation angle of the lighting component, resulting in a low adjustment efficiency of the irradiation angle of the lighting component on the exhibition item and being inconvenient for actual operation and use. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable lighting component for exhibitions and an exhibition stand to solve the above problems.

[0006] To achieve the above object, the present invention provides the following technical solution: An adjustable lighting component for an exhibition, comprising a lamp holder and a lamp base. A lamp body is provided at the first end of the lamp base. A first movable shaft and a second movable shaft are provided on the lamp base. The first movable shaft and the second movable shaft are respectively movable within a first arc groove and a second arc groove formed in the lamp holder. The first end of the lamp base extends outside the lamp holder and always faces the center position of the arc-shaped sliding stroke of the lamp base.

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

[0008] Preferably, drive components are symmetrically arranged within the lamp holder. The drive components include drive members that slide arc-shaped relative to the lamp base to push the lamp base to move.

[0009] Preferably, buffer plates that extend outside the lamp base in the default state are symmetrically and movably arranged on the lamp base. The drive members are driven to slide closer to the lamp base to squeeze the buffer plates to be movably attached to the lamp base.

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

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

[0012] Preferably, a spiral spring is provided on the rotating shaft for driving the rotating sleeve to rotate and reset to the same axial angle as the rotating shaft.

[0013] Preferably, a movable portion is provided on the buffer plate. The movable portion is movably arranged within a movable hole formed in the lamp base, and the diameter value of the movable hole is greater than the diameter value of the movable portion so that the buffer plate can deflect vertically. Abutting plates and second elastic members are symmetrically arranged within the lamp base. The abutting plates are driven by the second elastic members to abut against both vertical sides of the movable portion.

[0014] Preferably, first elastic members for driving the buffer plates to reset to the default state are symmetrically arranged on the lamp base.

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

[0016] In the above technical solution, an adjustable lighting component and an exhibition stand for an exhibition provided by the present invention have the following beneficial effects: The light emitted by the lamp body can be directed towards the exhibition items at any position in the sliding stroke of the lamp base. The lamp base can be driven to slide in an arc shape so that the lamp body rotates around the position of the exhibition items, thereby achieving lighting the periphery of the exhibition items obliquely from different angles by the lamp body above. It is not necessary for the staff to adjust the position of the lamp body in a multi-joint linkage manner, thereby improving the adjustment efficiency of the irradiation angle of the lamp body and facilitating actual operation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The overall structural schematic diagram provided by the embodiment of the present invention;

[0019] Figure 2 The sectional view of the structure at the first movable shaft of the overall provided by the embodiment of the present invention;

[0020] Figure 3 The sectional view of the structure at the lamp base of the overall provided by the embodiment of the present invention;

[0021] Figure 4 The partial structural schematic diagram of the lamp stand provided by the embodiment of the present invention;

[0022] Figure 5 The structural schematic diagram of the lamp base, the first movable shaft, the second movable shaft, the rotating shaft and the rotating sleeve provided by the embodiment of the present invention;

[0023] Figure 6 The structural schematic diagram of the lamp base, the first movable shaft, the second movable shaft, the rotating shaft and the rotating sleeve provided by the embodiment of the present invention;

[0024] Figure 7 The exploded structural schematic diagram of the rotating shaft, the rotating sleeve, the buffer plate and the spiral spring provided by the embodiment of the present invention;

[0025] Figure 8 The structural schematic diagram of the driving member, the driving gear and the driving motor provided by the embodiment of the present invention;

[0026] Figure 9 provided by the embodiment of the present invention Figure 3 The partial enlarged schematic diagram at A in

[0027] Explanation of the reference numerals:

[0028] 1. Lamp holder; 11. Activity cavity; 12. First arc groove; 121. First stepped groove; 122. First helical groove; 13. Second arc groove; 131. Second stepped groove; 132. Second helical groove; 14. Arch part; 15. Installation part; 151. Sliding groove; 16. Connection part; 2. Lamp base; 21. Accommodation groove; 22. Activity hole; 23. Rotation hole; 31. First activity shaft; 311. First helical part; 32. Second activity shaft; 321. Second helical part; 4. Buffer plate; 41. Extension part; 42. Activity part; 51. Rotating shaft; 511. Third helical part; 512. Threaded column part; 52. Rotating sleeve; 521. Fourth helical part; 522. Threaded hole; 53. Flexible abutting ring; 6. Coil spring; 71. First elastic part; 72. Abutting plate; 73. Second elastic part; 81. Driving part; 811. Pushing plate; 82. Driving gear; 83. Driving motor; 91. Lamp body. Specific embodiments

[0029] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0030] As Figures 1-9 shown, an adjustable lighting component and exhibition stand for exhibitions includes a lamp holder 1 and a lamp base 2. A lamp body 91 is provided at the first end of the lamp base 2. A first activity shaft 31 and a second activity shaft 32 are provided on the lamp base 2. The first activity shaft 31 and the second activity shaft 32 are respectively located in a first arc groove 12 and a second arc groove 13 opened in the lamp holder 1 for activity. The first end of the lamp base 2 extends outside the lamp holder 1 and always faces the center position of the arc-shaped sliding stroke of the lamp base 2.

[0031] Specifically, the lamp holder 1 is connected to an external moving device through a connection part 16, so that the lamp holder 1 can be horizontally or vertically moved by using the external moving device. As Figure 4 shown, an activity cavity 11 is opened in the lamp holder 1, and a first arc groove 12 and a second arc groove 13 are provided in the activity cavity 11. The lamp base 2 is arranged in the activity cavity 11 so that the first activity shaft 31 and the second activity shaft 32 are respectively located in the first arc groove 12 and the second arc groove 13 for activity. When the first activity shaft 31 and the second activity shaft 32 are located in the first arc groove 12 and the second arc groove 13 for activity, the lamp base 2 can perform arc-shaped sliding. And as Figure 3One end of the lamp socket 2 shown in the vertical downward direction is the first end, and the lamp body 91 is arranged on one end of the lamp socket 2 in the vertical downward direction, so that the light emitted by the lamp body 91 on the lamp socket 2 always faces the center position of the arc-shaped sliding stroke of the lamp socket 2.

[0032] When in actual use, the objects of the exhibition can be placed vertically below the lamp holder 1, and the height of the lamp holder 1 can be adjusted so that the exhibition items are located at the center position of the arc-shaped sliding stroke of the lamp socket 2. At this time, if the lamp body 91 is turned on, the light emitted by the lamp body 91 can face the exhibition items at any position of the lamp socket 2 in the sliding stroke. When it is necessary to change the angle of illumination on the exhibition items, the lamp socket 2 can be driven to slide in an arc so that the lamp body 91 rotates around the position of the exhibition items as the center, so as to realize the oblique lighting of the upper lamp body 91 on the periphery of the exhibition items from different angles. It is not necessary for the staff to adjust the position of the lamp body 91 in a multi-joint linkage manner, thereby improving the adjustment efficiency of the illumination angle of the lamp body 91 and facilitating actual operation and use.

[0033] Among them, the external moving device is common general knowledge for those skilled in the art and will not be elaborated here.

[0034] In the above technical solution, the light emitted by the lamp body 91 can face the exhibition items at any position of the lamp socket 2 in the sliding stroke. The lamp socket 2 can be driven to slide in an arc so that the lamp body 91 rotates around the position of the exhibition items as the center, so as to realize the oblique lighting of the upper lamp body 91 on the periphery of the exhibition items from different angles. It is not necessary for the staff to adjust the position of the lamp body 91 in a multi-joint linkage manner, thereby improving the adjustment efficiency of the illumination angle of the lamp body 91 and facilitating actual operation and use.

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

[0036] Specifically, as Figure 6As shown, the first movable shaft 31 and the second movable shaft 32 are both axially rotatably arranged on the rotation holes 23 of the lamp base 2. A first stepped groove 121 is formed in the first arc groove 12, and a second stepped groove 131 is formed in the second arc groove 13. A plurality of first helical teeth grooves 122 are arranged at intervals along the arc-shaped bottom surface at the vertical bottom of the first stepped groove 121, and a plurality of second helical teeth grooves 132 are arranged at intervals along the arc-shaped bottom surface at the vertical bottom of the second stepped groove 131. When the first movable shaft 31 and the second movable shaft 32 move within the first arc groove 12 and the second arc groove 13, the first helical teeth portion 311 on the first movable shaft 31 is rotationally coupled with the first helical teeth grooves 122, and the second helical teeth portion 321 on the second movable shaft 32 is coupled with the second helical teeth grooves 132. Thus, the first helical teeth portion 311, the first helical teeth grooves 122, the second helical teeth portion 321, and the second helical teeth grooves 132 are used to improve the stability of the lamp base 2 during the arc-shaped movement within the lamp holder 1, reduce accidental vibrations during the movement of the lamp base 2, and improve the protection of the lamp body 91.

[0037] Secondly, as Figure 5 shown, the tooth portions on the first movable shaft 31 and the second movable shaft 32 are both helical teeth. As Figure 4 shown, the mating grooves of the first arc groove 12 and the second arc groove 13 are both inclined grooves, and the groove depth of the inclined grooves at the end of the first arc groove 12 and the second arc groove 13 facing away from the lamp base 2 is larger. Furthermore, the coupling between the first movable shaft 31 and the second movable shaft 32 and the inner side positions of the first arc groove 12 and the second arc groove 13 is made closer, 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. It can prevent the lamp base 2 from falling off or loosening due to the accidental detachment of the first movable shaft 31 and the second movable shaft 32 from the first arc groove 12 and the second arc groove 13, and improve the installation stability and sliding safety of the lamp base 2 on the lamp holder 1.

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

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

[0040] Thus, the driving motor 83 can be used to control the driving member 81 to slide closer to the lamp holder 2 through the driving gear 82, and the relative sliding closer of the two driving members 81 causes the pushing plate 811 to press against both sides of the lamp holder 2. Subsequently, the two driving members 81 can slide synchronously and in the same arc shape to push the lamp holder 2 to slide in an arc shape, thereby completing the adjustment drive of the light irradiation angle of the lamp body 91. By using the driving member 81 to clamp the lamp holder 2 and synchronously push the lamp holder 2 to move in an arc shape, the convenience of adjusting the position of the lamp holder 2 can be improved, and the stability of the lamp holder 2 during the arc-shaped movement can also be improved.

[0041] The driving member 81 can first slide in an arc shape relative to the lamp holder 2, which can cause the driving members 81 to 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 irradiation angle of the lamp body 91. Thus, the manual adjustment method of the lamp holder 2 and the lamp body 91 is retained by using the driving member 81 that moves in an arc shape, improving the meticulousness and accuracy of the adjustment of the irradiated light.

[0042] Among them, the driving motor 83, the electronic control program of the driving motor 83, and the circuit all belong to the common technical knowledge of those skilled in the art, and will not be elaborated here.

[0043] As another embodiment provided by the present invention, buffer plates 4 that extend outside the lamp holder 2 in the default state are symmetrically and movably arranged on the lamp holder 2, and the driving member 81 is driven to slide closer to the lamp holder 2 to squeeze the buffer plates 4 to be movably attached to the lamp holder 2.

[0044] Specifically, receiving grooves 21 are formed on both sides of the lamp holder 2. As Figure 9 shown, the buffer plates 4 extend outside the receiving grooves 21 in the default state. When the driving member 81 is driven to slide in an arc shape so that the pushing plate 811 approaches the lamp holder 2, the pushing plate 811 first contacts the buffer plates 4 and squeezes the buffer plates 4 to be movably attached to the inside of the receiving grooves 21. Subsequently, the two driving members 81 complete the clamping of the lamp holder 2 through the buffer plates 4, thereby using the buffer plates 4 to achieve buffering and protection when the pushing plate 811 approaches and clamps the lamp holder 2, and preventing the lamp holder 2 and the lamp body 91 inside from being damaged by the clamping impact.

[0045] Furthermore, first elastic members 71 for driving the buffer plates 4 to reset to the default state are symmetrically arranged on the lamp holder 2. As Figure 9 shown, the first elastic members 71 are arranged inside the receiving grooves 21, and the first elastic members 71 are located between the buffer plates 4 and the lamp holder 2. Thus, the first elastic members 71 are used to push the buffer plates 4 to move away from the lamp holder 2 and reset to the default state. When the driving member 81 squeezes the buffer plates 4 to be movably attached to the inside of the receiving grooves 21, the first elastic members 71 are compressed and deformed to shrink, so as to achieve buffering and deceleration during the process of the driving member 81 clamping the lamp holder 2.

[0046] Among them, the first elastic member 71 can be replaced by elastic objects well known to those skilled in the art, such as springs, airbags, elastic plates, etc.

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

[0048] Specifically, as Figure 5 shown, extension portions 41 are arranged on the buffer plate 4, and the rotating shaft 51 is axially rotatably arranged on the extension portions 41. The buffer plate 4 extends the rotating shaft 51 to the other side of the lamp socket 2 through the extension portions 41, so that when the lamp socket 2 is in the default state, the third helical tooth portion 511 of the rotating shaft 51 is coupled with the first helical tooth portion 311, and the fourth helical tooth portion 521 is coupled with the second helical tooth portion 321.

[0049] A threaded column portion 512 is arranged on the rotating shaft 51, a threaded hole 522 is arranged on the rotating sleeve 52, and the rotating sleeve 52 is threadedly fitted and installed on the rotating shaft 51 through the threaded hole 522.

[0050] When the driving member 81 slides away from the lamp socket 2 and does not clamp the lamp socket 2, the buffer plate 4 is driven by the first elastic member 71 to reset to the default state. At this time, the third helical tooth portion 511 is coupled with the first helical tooth portion 311, and the fourth helical tooth portion 521 is coupled with the second helical tooth portion 321. Since the coupling resistance of the helical gear is greater than that of the conventional gear, the third helical tooth portion 511 and the fourth helical tooth portion 521 are used to apply a rotational resistance to the first movable shaft 31 and the second movable shaft 32, so that the lamp socket 2 can be kept in the original position when it is not pushed by an external force. However, the staff can still manually push the lamp socket 2 to perform an arc-shaped movement, so that the first movable shaft 31 and the second movable shaft 32 drive the rotating shaft 51 and the rotating sleeve 52 to perform axial rotation during the axial rotation process. A manual adjustment method for retaining the position of the lamp socket 2 is realized, and the lamp socket 2 can hover in place without being pushed by the hand, so as to facilitate the actual manual operation and adjustment of the lamp socket 2 and the lamp body 91.

[0051] When the driving member 81 clamps the two sides of the lamp socket 2 to adjust the lamp socket 2 and the lamp body 91 by using the driving motor 83, the driving member 81 squeezes the buffer plate 4 to be tightly attached to the receiving groove 21, and the rotating shaft 51 and the rotating sleeve 52 move with the buffer plate 4, so that the third helical tooth portion 511 is separated from the first helical tooth portion 311, and the fourth helical tooth portion 521 is separated from the second helical tooth portion 321, so that the first movable shaft 31 and the second movable shaft 32 can perform axial rotation, thus facilitating the mechanical adjustment of the positions of the lamp socket 2 and the lamp body 91.

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

[0053] Specifically, the diameters of the first moving shaft 31 and the second moving shaft 32 are equal, and the outer diameters of the first helical tooth portion 311 and the second helical tooth portion 321 are equal. As Figure 2 shown, the flexible abutting ring 53 provided on the rotating sleeve 52 faces the raised portion 14. When the lamp socket 2 moves in an arc within the lamp holder 1, the distance from the first moving shaft 31 to the center of the arc-shaped sliding stroke of the lamp socket 2 is a, and the distance from the second moving shaft 32 to the center of the arc-shaped sliding stroke of the lamp socket 2 is b, and a > b. Thus, during the movement of the lamp socket 2, the angular velocity of the first moving shaft 31 is greater than that of the second moving shaft 32. Therefore, when the lamp socket 2 slides in an arc to make the first moving shaft 31 and the second moving shaft 32 move within the first arc groove 12 and the second arc groove 13, the first helical tooth portion 311 drives the rotating shaft 51 to rotate axially, and the second helical tooth portion 321 drives the rotating sleeve 52 to rotate axially, and 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 have a relative rotation with respect to the rotating shaft 51, thereby realizing that the rotating sleeve 52 can axially slide relative to the rotating shaft 51 to drive the flexible abutting ring 53 to move closer to or away from the raised portion 14.

[0054] When the driving member 81 moves away and no longer clamps the lamp socket 2, the buffer plate 4 is in the default state, the rotating shaft 51 is coupled with the first moving shaft 31, and the rotating sleeve 52 is coupled with the second moving shaft 32. As Figure 2 shown, when the staff manually pushes the lamp socket 2 to slide leftward against the first arc groove 12 for adjustment, the first moving shaft 31 and the second moving shaft 32 rotate counterclockwise. At the same time, due to the existence of the angular velocity difference between the first moving shaft 31 and the second moving shaft 32, the rotating sleeve 52 on the left side of the lamp socket 2 will axially slide and rotate relative to the rotating shaft 51 to drive the flexible abutting ring 53 to approach the raised portion 14, while the rotating sleeve 52 on the right side of the lamp socket 2 axially slides and rotates relative to the rotating shaft 51 to drive the flexible abutting ring 53 to move away from the raised portion 14, thereby gradually increasing the resistance of the lamp socket 2 during the sliding process to the left end of the first arc groove 12;

[0055] Conversely, when the staff uses their hand to push the lamp holder 2 to slide and adjust to the right side of the first arc groove 12, the first movable shaft 31, the second movable shaft 32, the rotating shaft 51, and the rotating sleeve 52 are used to gradually increase the resistance of the lamp holder 2 during the process of sliding to the left end of the first arc groove 12. Thus, it avoids the problem that the lamp holder 2 slides down rapidly due to the gradual decrease of the supporting force at the end of the arc groove when the end of the arc groove of the lamp holder 2 slides close. Furthermore, by utilizing the rotational speed difference between the first movable shaft 31 and the second movable shaft 32, and cooperating with the rotating shaft 51, the rotating sleeve 52, and the flexible abutting ring 53, the stability of the lamp holder 2 during sliding in the arc groove is achieved, enabling the lamp holder 2 to move smoothly within the arc groove for convenient manual adjustment and use.

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

[0057] Specifically, as Figure 5 shown, a spiral spring 6 is arranged on the rotating shaft 51. The inner end of the spiral spring 6 is fixedly connected to the rotating shaft 51, and the outer end of the spiral 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 axially rotate and move relative to the rotating shaft 51 due to the rotational speed difference, the spiral spring 6 is stretched and deformed by tension and elongated; when the buffer plate 4 is pressed against the receiving groove 21, the spiral spring 6 is elastically reset by itself and drives the rotating sleeve 52 to reset to the original axial angle same as the rotating shaft 51. Thus, the spiral spring 6 is utilized to realize the reset of the rotating sleeve 52, facilitating actual adjustment and use.

[0058] Secondly, the spiral spring 6 is used to keep the rotating shaft 51 and the rotating sleeve 52 at the same axial angle. Since the first movable shaft 31 and the second movable shaft 32 will inevitably generate a rotational speed difference during rotation, the spiral spring 6 can also play a role in increasing 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 to remain in the original position without being pushed by an external force, facilitating actual operation and use.

[0059] As another embodiment provided by the present invention, the buffer plate 4 is provided with a movable portion 42. The movable portion 42 is movably arranged in a movable hole 22 opened in the lamp holder 2, and the diameter value of the movable hole 22 is greater than the diameter value of the movable portion 42 to enable the buffer plate 4 to deflect vertically. The lamp holder 2 is symmetrically provided with a resisting plate 72 and a second elastic member 73. The resisting plate 72 is driven by the second elastic member 73 to abut against both vertical sides of the movable portion 42.

[0060] Specifically, as Figure 9 shown, the movable portion 42 is movably arranged in the movable hole 22, and a ring-shaped wing plate is arranged at the end of the movable portion 42 to prevent the movable portion 42 from completely slipping out of 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 within the lamp socket 2 pushes against the abutting plate 72, squeezing it against both vertical sides of the movable portion 42. The diameter of the movable hole 22 is greater than that of the movable portion 42. Thus, when the abutting plate 811 of the driving member 81 moves closer to the buffer plate 4, the abutting plate 811 first contacts one end of the buffer plate 4 close to the lamp body 91. Then, after the buffer plate 4 is pushed to deflect vertically to a certain extent, it is squeezed by the abutting plate 811 and enters the receiving groove 21. This avoids the problem of the buffer plate 4 being damaged due to the inclined extrusion force of the driving member 81, improves the service life of the buffer plate 4, and uses the abutting plate 72 and the second elastic member 73 to enable the buffer plate 4 to reset to be parallel to the bottom of the receiving groove 21, thereby further improving the safety and buffering effect of the movement of the buffer plate 4.

[0062] Furthermore, if the lamp socket 2 is inclined so that the lamp body 91 irradiates the exhibition items obliquely, since the end of the lamp socket 2 where the lamp body 91 is provided is under greater gravity pressure, the second movable shaft 32 may slip towards the end of the second arc groove 13 within the second arc groove 13. As a result, the light emitted by the lamp body 91 is offset relative to the original center position of the arc-shaped sliding stroke of the lamp socket 2, affecting the lighting angle of the exhibition items.

[0063] At this time, the driving member 81 can first slide closer to and clamp the lamp socket 2 relative to the lamp socket 2, and rotate and reset the first movable shaft 31 of the lamp socket 2 to the middle of the first arc groove 12 through the driving member 81, so that the lamp socket 2 and the lamp body 91 are roughly in a vertical state. Subsequently, first, the driving member 81 is moved away from the lamp socket 2, the buffer plate 4 is driven by the first elastic member 71 to reset, 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 made to slide closer to the buffer plate 4. The abutting plate 811 first contacts one end of the buffer plate 4 close to the lamp body 91, and then the buffer plate 4 is pushed to deflect vertically to a certain extent. During the deflection of the buffer plate 4, the rotating sleeve 52 first deflects to release the coupling with the second helical tooth portion 321, while the rotating shaft 51 still maintains the coupling with the first helical tooth portion 311. At this time, since the first movable shaft 31 is still locked by the coupling resistance of the rotating shaft 51, and the second movable shaft 32 is not affected by the resistance and can slide within the second arc groove 13 under the action of gravity, the lamp socket 2 can slide to a vertical state under the action of gravity, and the vertical alignment of the lamp socket 2 is completed by using the rotating shaft 51, the rotating sleeve 52 and gravity, and the orientation of the lamp body 91 is adjusted to the original center position of the arc-shaped sliding stroke of the lamp socket 2 to ensure the stability of the irradiation angle of the lamp body 91.

[0064] Among them, the second elastic member 73 can be replaced by elastic objects well-known to those skilled in the art such as springs, air bags, elastic plates, etc.

[0065] Working principle: First, place the exhibition items vertically below the lamp holder 1 and adjust the height of the lamp holder 1 so that the exhibition items are located at the center of the arc-shaped sliding stroke of the lamp base 2. When it is necessary to change the angle of the light irradiated on the exhibition items, the two driving members 81 can slide synchronously and in the same direction in an arc to push against the lamp base 2 for arc-shaped sliding, thereby completing the adjustment drive of the light irradiation angle of the lamp body 91. It is also possible to slide the driving members 81 away from the lamp base 2 to unlock the lamp base 2. At this time, the staff can manually adjust the lamp base 2 to more finely adjust the irradiation angle of the lamp body 91;

[0066] When the light emitted by the lamp body 91 is offset relative to the original center position of the arc-shaped sliding stroke of the lamp base 2, first slide the driving member 81 closer to and clamp the lamp base 2, and rotate and reset the first movable shaft 31 of the lamp base 2 to the middle of the first arc groove 12 through the driving member 81, so that the lamp base 2 and the lamp body 91 are roughly in a vertical state. Subsequently, first move the driving member 81 away from the lamp base 2, and the buffer plate 4 is driven by the first elastic member 71 to reset, 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, make the driving member 81 slide close to the buffer plate 4, and the pushing plate 811 first contacts one end of the buffer plate 4 close to the lamp body 91, and then pushes the buffer plate 4 to deflect vertically to a certain extent. During the deflection of the buffer plate 4, the rotating sleeve 52 first deflects to release the coupling with the second helical tooth portion 321, while the rotating shaft 51 still maintains the coupling with the first helical tooth portion 311. At this time, since the first movable shaft 31 is still locked by the coupling resistance of the rotating shaft 51, and the second movable shaft 32 is not affected by the resistance and can slide in the second arc groove 13 under the action of gravity, the lamp base 2 can slide under the action of gravity to be in a vertical state, and the vertical alignment of the lamp base 2 is completed by using the rotating shaft 51, the rotating sleeve 52 and gravity.

[0067] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An adjustable lighting assembly for exhibition, characterized in that: The invention comprises a lamp holder (1) and a lamp base (2), wherein a lamp body (91) is arranged at the first end of the lamp base (2), and a first movable shaft (31) and a second movable shaft (32) are arranged on the lamp base (2), wherein the first movable shaft (31) and the second movable shaft (32) are respectively arranged to move in a first arc groove (12) and a second arc groove (13) provided in the lamp holder (1), 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).

2. The adjustable lighting assembly for exhibition according to claim 1, characterized in that: The first movable shaft (31) is provided with a first beveled tooth portion (311), and the second movable shaft (32) is provided with a second beveled tooth portion (321); the first beveled tooth portion (311) is coupled to a first beveled tooth groove (122) opened at the bottom of the first arc groove (12), and the second beveled tooth portion (321) is coupled to a second beveled tooth groove (132) opened at the bottom of the second arc groove (13).

3. The adjustable lighting assembly for exhibition 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 exhibition according to claim 3, characterized in that: The lamp holder (2) is symmetrically and movably provided with a buffer plate (4) which extends outward from the lamp holder (2) in a default state, and the driving member (81) is driven to slide relative to the lamp holder (2) to press the buffer plate (4) to move closely against the lamp holder (2).

5. The adjustable lighting assembly for exhibition according to claim 4, characterized in that: 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 helical tooth portion (511) and a fourth helical tooth portion (521), and in a default state of the buffer plate (4), the third helical tooth portion (511) is coupled with the first helical tooth portion (311), and the fourth helical tooth portion (521) is coupled with the second helical tooth portion (321).

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

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

8. The adjustable lighting assembly for exhibition according to claim 6, 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 greater than the diameter of the movable portion (42) so that the buffer plate (4) can be vertically deflected, and a stop plate (72) and a second elastic member (73) are symmetrically arranged in the lamp holder (2), and the stop plate (72) is driven by the second elastic member (73) to contact the two vertical sides of the movable portion (42).

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

10. An exhibition stand, characterized in that: The invention comprises the adjustable lighting assembly for exhibitions as described in claims 1 to 9.

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