A lamp with smooth angle adjustment

Abstract

The application relates to a lamp with smooth angle adjustment, which comprises a support, a main shaft part fixedly connected to the support, a first pressing part, a rotating shaft sleeve, a second pressing part and a pressing part arranged in sequence on the main shaft part, a through hole arranged at the end of the main shaft part, a fastener arranged in the through hole and used for being screwed with the pressing part, and the rotating shaft sleeve is pressed between the first pressing part and the second pressing part when the fastener and the pressing part are screwed, so that the head part is fixed relative to the support; the rotating shaft sleeve is separated from the extrusion of the first pressing part and the second pressing part when the fastener and the pressing part are unscrewed, and the head part can rotate relative to the support; the scheme of the application can effectively lock the rotating shaft sleeve by using the combined clamping force of the first pressing part and the second pressing part; the rotating shaft sleeve is separated from the clamping of the first pressing part and the second pressing part when loosened, and the rotating shaft sleeve can smoothly rotate because the first pressing part and the second pressing part are toothless.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and more particularly to a lamp with a smoothly adjustable angle. Background Technology

[0002] In existing lighting adjustment mechanisms, a toothed disc meshing structure is typically used to adjust and fix the lighting fixture angle. A common structure includes two mating toothed discs with interlocking teeth on their facing end faces. When fixing the lighting fixture angle, pressure is applied to tightly engage the teeth, utilizing the friction between them to achieve locking. When adjusting the angle, the pressure is released, partially or completely disengaging the teeth to allow for angle adjustment. However, this traditional toothed disc adjustment mechanism has the following technical problems:

[0003] Adjustment jamming: During the adjustment, because the teeth of the two gears are not completely disengaged, there is still some contact or interference between the teeth, which causes jamming during the adjustment process, making the angle adjustment not smooth and affecting the user experience.

[0004] Wear and lifespan issues: During frequent adjustments, the teeth are prone to wear due to friction. After long-term use, this may lead to loose meshing, affecting the locking effect, or even causing loosening or slippage.

[0005] Inconvenient to operate: Since the meshing of the teeth requires a large amount of pressure to achieve a stable lock, users may need to apply a lot of force to complete the adjustment or fixation, making the operation inconvenient.

[0006] Therefore, there is an urgent need for a new type of lamp adjustment mechanism that can solve the problems of adjustment jamming, severe wear and tear and inconvenient operation in the existing technology, and achieve a smoother, more stable and durable angle adjustment function. Summary of the Invention

[0007] To solve one of the above-mentioned technical problems, this invention provides a lamp with a smoothly adjustable angle, which achieves a smoother, more stable and durable angle adjustment function.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A smoothly adjustable lamp includes a bracket, a main shaft fixedly connected to the bracket, and a first pressing member, a rotating sleeve, a second pressing member, and a clamping member sequentially passing through the main shaft. The rotating sleeve is used to fixally connect to the head of the lamp. A through hole is provided at the end of the main shaft, and a fastener for threaded connection with the clamping member is inserted in the through hole. When the fastener and the clamping member are tightened by threaded engagement, the rotating sleeve is pressed between the first and second pressing members, fixing the head relative to the bracket. When the fastener and the clamping member are loosened by threaded engagement, the rotating sleeve is released from the compression of the first and second pressing members, and the head can rotate relative to the bracket.

[0010] Further defined, the rotating bushing includes an annular plate portion having an annular opening and a collar portion formed by folding the edge of the annular opening. The rotating bushing is adapted to the main shaft component through the collar portion. The head is fixedly connected to one end face of the annular plate portion through a rotating arm. When tightened, the first pressing member presses against the other end face of the annular plate portion, and the second pressing member presses against the rotating arm.

[0011] Further defined, the end face of the clamping member that is in contact with the second pressing member has a plurality of protrusions distributed circumferentially, and a recessed groove is formed between adjacent protrusions, so that the clamping member forms an uneven surface.

[0012] Further defined, the first pressing member and the main shaft member are connected as one unit, the second pressing member and the rotating arm are also connected as one unit, and the rotating bushing and the pressing member are both made of metal, while the first pressing member and the second pressing member are both made of rubber.

[0013] Further defined, the free end of the main shaft is provided with a receiving groove communicating with the through hole, and a spring is housed in the receiving groove. When the clamping member passes through the through hole, the spring is sleeved on the outer periphery of the clamping member, and one end of the spring abuts against the bottom of the receiving groove, and the other end abuts against the second pressing member.

[0014] Further defined, a portion of the main shaft is completely cut in its radial direction to form two spaced-apart first connecting posts, the receiving groove is formed by the space between the two first connecting posts, the clamping member has first mating holes that are adapted to the shape of the two first connecting posts, the clamping member has a connecting portion formed between the two first mating holes, and a first threaded hole for threaded engagement of the fastener is provided at the middle position of the connecting portion. During the adjustment of the fastener's tightness, the clamping member moves along the length direction of the first connecting posts.

[0015] Further defined, the receiving groove is provided with two opposing second connecting posts, and the connecting part is provided with a second mating hole adapted to the second connecting posts. During the process of adjusting the tightness of the fastener, the clamping member moves along the length direction of the second connecting posts.

[0016] Further defined, a protruding post is provided at the middle position of the connecting part, the length of the protruding post is greater than the thickness of the connecting part, and the end of the protruding post is provided with the first threaded hole.

[0017] Further defined, the free end of the main shaft is fixedly connected to a cover plate, the ends of the first connecting column and the second connecting column are both provided with second threaded holes, the cover plate is provided with through holes corresponding to the second threaded holes, and the cover plate is threadedly connected to the second threaded hole by screws passing through the through holes.

[0018] Further defined, the bracket is provided with a receiving cavity, the main shaft is provided with a fixing part and a shaft body part integrally formed with the fixing part, the main shaft is fixedly disposed in the receiving cavity by the fixing part, and the main shaft extends out of the receiving cavity by the shaft body part.

[0019] By adopting the above technical solution, the present invention has at least the following beneficial effects:

[0020] The solution of this application utilizes the force (friction) of the first and second pressing parts to clamp the rotating sleeve, which can effectively lock the rotating sleeve (i.e., fix the head angle of the lamp); when loose, the rotating sleeve is disengaged from the clamping of the first and second pressing parts. Since the first and second pressing parts are toothless (to avoid jamming during adjustment), the rotating sleeve can rotate smoothly (i.e., the head angle of the lamp can be adjusted). Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the lamp holder structure;

[0022] Figure 2 This is an exploded view of the lamp holder structure;

[0023] Figure 3 This is a sectional view of the lamp holder structure;

[0024] Figure 4 This is a schematic diagram showing the main spindle and the first pressing part integrated together;

[0025] Figure 5 This is a structural diagram of the clamping component. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] As attached Figure 1 To be continued Figure 3 As shown, a lamp with a smoothly adjustable angle includes a bracket 1. The bracket 1 is fixedly connected to a main shaft 2. The main shaft 2 is sequentially fitted with a first pressing member 3, a rotating sleeve 4, a second pressing member 5, and a clamping member 6. The rotating sleeve 4 is used to fix and connect to the head of the lamp. The end of the main shaft 2 is provided with a through hole 20. A fastener 7 for threaded connection with the clamping member 6 is provided in the through hole 20. The fastener 7 has a knob part and a stud part. Manually turning the knob part can drive the stud part to rotate. The stud part passes through the through hole 20 and engages with the threaded hole of the clamping member 6.

[0029] In this embodiment, when the fastener 7 and the clamping member 6 are tightened by threaded engagement, the rotating sleeve 4 is pressed between the first clamping member 3 and the second clamping member 5, fixing the head relative to the bracket 1. When the fastener 7 and the clamping member 6 are loosened by threaded engagement, the rotating sleeve 4 is released from the pressure of the first clamping member 3 and the second clamping member 5, at which point the head can rotate relative to the bracket 1. The solution of this application utilizes the force (friction) of the first clamping member 3 and the second clamping member 5 to effectively lock the rotating sleeve 4 (i.e., fix the head angle of the lamp); when loosened, the rotating sleeve 4 is released from the clamping of the first clamping member 3 and the second clamping member 5. Since the first clamping member 3 and the second clamping member 5 are toothless (to avoid jamming during adjustment), the rotating sleeve 4 can rotate smoothly (i.e., the head angle of the lamp can be adjusted).

[0030] In this embodiment, the rotating bushing 4 includes an annular plate portion 41 with an annular opening and a collar portion 42 formed by folding the edge of the annular opening. The rotating bushing 4 is adapted to the main shaft component 2 through the collar portion 42. The head is fixedly connected to one end face of the annular plate portion 41 through the rotating arm 8, so that the head of the lamp can rotate relative to the bracket 1. When tightened, the first pressing member 3 presses against the other end face of the annular plate portion 41, and the second pressing member 5 presses against the end face of the rotating arm 8. The double pressing surface design allows the axial stress to act on different components, the annular plate portion 41 and the rotating arm 8, respectively, effectively avoiding deformation problems caused by single-point stress concentration.

[0031] As attached Figure 5 As shown, the end face of the clamping member 6 that is in contact with the second pressing member 5 has a plurality of protrusions 61 distributed circumferentially, and a recessed groove 62 is formed between adjacent protrusions 61, so that the clamping member 6 forms an uneven surface, thereby increasing the friction force on the rotating bushing 4.

[0032] As attached Figure 2 As shown, the first pressing component 3 and the main shaft component 2 are connected as one unit, and the second pressing component 5 and the rotating arm 8 are also connected as one unit. The rotating bushing 4 and the pressing component 6 are both made of metal, while the first pressing component 3 and the second pressing component 5 are both made of rubber. The first pressing component 3 is formed by injection molding on the main shaft component 2. Similarly, the second pressing component 5 is formed by injection molding on the rotating arm 8. The rubber material is used to press the metal material to obtain better locking force.

[0033] As attached Figure 4 As shown, the free end of the main shaft 2 has a receiving groove 201 communicating with the through hole 20. A spring 9 is housed in the receiving groove 201. When the clamping member 6 passes through the through hole 20, the spring 9 is sleeved on the outer periphery of the clamping member 6, and one end of the spring 9 abuts against the bottom of the receiving groove 201, while the other end abuts against the second pressing member 5. In the loosened state, the spring 9 can automatically disengage the clamping member 6.

[0034] In this embodiment, a portion of the main shaft 2 is completely cut radially to form two spaced-apart first connecting posts 21. The receiving groove 201 is formed by the space between the two first connecting posts 21. The clamping member 6 has first mating holes 60 that correspond one-to-one with the shapes of the two first connecting posts 21. Specifically, the first connecting posts 21 are of a slightly concave arc shape. The clamping member 6 has a connecting portion 63 formed between the two first mating holes 60. A first threaded hole 66 for threaded engagement with the fastener 7 is provided at the middle position of the connecting portion 63. During the adjustment of the tightness of the fastener 7, the clamping member 6 moves along the length of the first connecting posts 21. Specifically, the first connecting posts 21 can serve as guides, facilitating the back-and-forth movement of the clamping member 6 along the length of the first connecting posts 21, i.e., switching between tightened and loosened states.

[0035] In this embodiment, the receiving groove 201 is also provided with two opposing second connecting posts 22. Specifically, the second connecting posts 22 are cylindrical, and the connecting part 63 is provided with a second mating hole 64 that is adapted to the second connecting posts 22. During the process of adjusting the tightness of the fastener 7, the clamping member 6 moves along the length direction of the second connecting post 22. Similarly, the second connecting post 22 can play a guiding role, further increasing the adaptability of the clamping member 6.

[0036] In this embodiment, a protruding post 65 is provided at the middle position of the connecting part 63. The length of the protruding post 65 is greater than the thickness of the connecting part 63. The end of the protruding post 65 is provided with the first threaded hole 66. The first threaded hole 66 is provided on the protruding post 65. Increasing the depth of the first threaded hole 66 allows more threads to engage with the fastener 7, thereby enhancing the locking tightness.

[0037] In this embodiment, a cover plate 10 is fixedly connected to the free end of the spindle 2. This cover plate 10 prevents components passing through the spindle 2 from coming out, reducing the failure rate of component locking failure. The ends of the first connecting post 21 and the second connecting post 22 are each provided with a second threaded hole 200. The cover plate 10 has a through hole 101 corresponding to the second threaded hole 200. The cover plate 10 is threadedly connected to the second threaded hole 200 by screws passing through the through hole 101. In addition to serving a guiding function, the first connecting post 21 and the second connecting post 22 also provide locking holes for fixing the cover plate 10, making the structure of the locking cover plate 10 more compact.

[0038] In this embodiment, the bracket 1 is provided with a receiving cavity 11, and the main shaft 2 is provided with a fixing part 23 and a shaft body part 24 integrally formed with the fixing part 23. The main shaft 2 is fixedly disposed in the receiving cavity 11 through the fixing part 23, and the main shaft 2 extends out of the receiving cavity 11 through the shaft body part 24. Specifically, the fixing part 23 is used to fix and connect with the bracket 1, while the main shaft 2 is used to pass through components such as the first pressing part 3, the rotating shaft sleeve 4, the second pressing part 5, and the clamping part 6, so that the overall structure is compact and beautiful.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various equivalent changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lamp with a smoothly adjustable angle, comprising a bracket (1), wherein a main shaft (2) is fixedly connected to the bracket (1), characterized in that, The main shaft (2) is sequentially fitted with a first pressing member (3), a rotating sleeve (4), a second pressing member (5), and a clamping member (6). The rotating sleeve (4) is used to fix the head of the lamp. The end of the main shaft (2) is provided with a through hole (20). A fastener (7) for threaded connection with the clamping member (6) is provided in the through hole (20). When the fastener (7) and the clamping member (6) are tightened by threaded engagement, the rotating sleeve (4) is pressed between the first pressing member (3) and the second pressing member (5), so that the head is fixed relative to the bracket (1). When the fastener (7) and the clamping member (6) are loosened by threaded engagement, the rotating sleeve (4) is released from the compression of the first pressing member (3) and the second pressing member (5). At this time, the head can rotate relative to the bracket (1).

2. The luminaire of claim 1, wherein, The rotating bushing (4) includes an annular plate portion (41) with an annular opening and a collar portion (42) formed by folding the edge of the annular opening. The rotating bushing (4) is adapted to the main shaft component (2) through the collar portion (42). The head is fixedly connected to one end face of the annular plate portion (41) through a rotating arm (8). When tightened, the first pressing member (3) presses against the other end face of the annular plate portion (41), and the second pressing member (5) presses against the rotating arm (8).

3. The luminaire of claim 1, wherein, The end face of the clamping member (6) that is in contact with the second pressing member (5) has a plurality of protrusions (61) distributed circumferentially, and a recessed groove (62) is formed between adjacent protrusions (61), so that the clamping member (6) forms an uneven surface.

4. The luminaire of claim 2, wherein, The first pressing part (3) and the main shaft part (2) are connected as one unit, the second pressing part (5) and the rotating arm (8) are also connected as one unit, and the rotating bushing (4) and the pressing part (6) are both made of metal, while the first pressing part (3) and the second pressing part (5) are both made of rubber.

5. The luminaire of claim 1, wherein, The free end of the main shaft (2) is provided with a receiving groove (201) communicating with the through hole (20). A spring (9) is housed in the receiving groove (201). When the clamping member (6) passes through the through hole (20), the spring (9) is sleeved on the outer periphery of the clamping member (6), and one end of the spring (9) abuts against the bottom of the receiving groove (201), and the other end abuts against the second pressing member (5).

6. The luminaire of claim 5, wherein, Part of the main shaft (2) is completely cut in its radial direction to form two spaced first connecting posts (21). The receiving groove (201) is formed by the space between the two first connecting posts (21). The clamping member (6) has a first mating hole (60) that is adapted to the shape of the two first connecting posts (21). The clamping member (6) has a connecting part (63) formed between the two first mating holes (60). A first threaded hole (66) for threaded engagement of the fastener (7) is provided at the middle position of the connecting part (63). During the adjustment of the tightness of the fastener (7), the clamping member (6) moves along the length direction of the first connecting post (21).

7. The lamp according to claim 6, characterized in that, The receiving groove (201) is also provided with two opposing second connecting posts (22). The connecting part (63) is provided with a second mating hole (64) that is adapted to the second connecting post (22). During the adjustment of the fastener (7), the clamping member (6) moves along the length direction of the second connecting post (22).

8. The luminaire of claim 6, wherein, A protruding post (65) is provided at the middle position of the connecting part (63). The length of the protruding post (65) is greater than the thickness of the connecting part (63). The end of the protruding post (65) is provided with the first threaded hole (66).

9. The luminaire of claim 7, wherein, The free end of the main shaft (2) is fixedly connected to a cover plate (10). The ends of the first connecting column (21) and the second connecting column (22) are both provided with second threaded holes (200). The cover plate (10) is provided with a through hole (101) corresponding to the second threaded hole (200). The cover plate (10) is threadedly connected to the second threaded hole (200) by a screw passing through the through hole (101).

10. The luminaire of claim 1, wherein, The bracket (1) is provided with a receiving cavity (11), and the main shaft (2) is provided with a fixing part (23) and a shaft part (24) integrally formed with the fixing part (23). The main shaft (2) is fixedly installed in the receiving cavity (11) through the fixing part (23), and the main shaft (2) extends out of the receiving cavity (11) through the shaft part (24).

Images