A round tube handle fixing structure of a projection lamp

Abstract

The utility model discloses a kind of round pipe handle fixing structure of projection lamp, including connector screw, expansion sleeve, connector, projection module and projection lamp shell, the projection module and projection lamp shell are installed on connector, and projection lamp shell is located the outside of projection module, the expansion sleeve is sleeved on connector screw, the connector is threadedly connected with connector screw, and expansion sleeve can be driven to expand outward, the connector screw and expansion sleeve are arranged in round pipe handle.

Description

Technical Field

[0001] This utility model relates to the field of fixing structure technology, and more specifically to a fixing structure for the round tube handle of a projection lamp. Background Technology

[0002] Currently, the round handlebars (handlebar tubes) of motor vehicles (such as motorcycles and ATVs) and non-motor vehicles often need to be equipped with projection lights to achieve functions such as ground width indication, turn indication or brand logo projection. The fixing structure in such scenarios needs to meet multiple stringent requirements: (1) Vibration resistance: The continuous high-frequency vibration during vehicle operation can easily cause the traditional screw fixing to loosen, causing the projection module to deflect and the light path to shift, affecting the projection clarity and safety; (2) Installation adaptability: The handlebar tube diameter varies significantly between different models, and the existing welding or drilling fixing methods need to be customized, which damages the tube structure and cannot be reused; (3) Insufficient sealing protection: Outdoor use is subject to rain and sand erosion, and the exposed wiring harness or single-layer sealing of conventional structures can easily lead to short circuit failure of electronic components; (4) Maintenance complexity: The projection module needs to be maintained or replaced regularly, but the traditional built-in fixing requires disassembling the entire handle part, which is time-consuming and increases the risk of damage.

[0003] Therefore, there is an urgent need for a projection lamp handle fixing structure that combines high vibration resistance, pipe diameter adaptability, sealing protection, and quick assembly / disassembly capabilities. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cylindrical handle fixing structure for a projection lamp, thereby solving the aforementioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A cylindrical handle fixing structure for a projection lamp includes a connector screw, an expansion sleeve, a connector, a projection module, and a projection lamp housing. The projection module and the projection lamp housing are both mounted on the connector, and the projection lamp housing is located outside the projection module. The expansion sleeve is fitted onto the connector screw. The connector is threadedly connected to the connector screw and can drive the expansion sleeve to expand outward. The connector screw and the expansion sleeve are disposed inside the cylindrical handle.

[0006] Furthermore, the expansion sleeve is provided with a plurality of expansion slots, and an expansion notch is provided at the end of the expansion slot away from the opening.

[0007] Furthermore, the connector screw has a first inclined surface at the screw head, the connector has a second inclined surface, and the expansion sleeve has a third inclined surface at both ends. The first and second inclined surfaces can respectively contact the third inclined surfaces at both ends of the expansion sleeve, causing the expansion sleeve to expand outward.

[0008] Furthermore, the outer surface of the expansion sleeve is provided with knurled patterns.

[0009] Furthermore, the outer ring of the projection module end is provided with several positioning recesses, the connector is provided with a connecting ring, the connecting ring is provided with several first threaded holes, a first positioning screw is provided in the first threaded hole, one end of the projection module extends into the connecting ring, and the first positioning screw passes through the first threaded hole and extends into the positioning recess.

[0010] Furthermore, the connector screw has an axially arranged groove at the end away from the screw head, and the projection module end has a radially penetrating second threaded hole that can be aligned with the first threaded hole. A second positioning screw is provided in the second threaded hole, and the second positioning screw passes through the first threaded hole and the second threaded hole in sequence and extends into the groove.

[0011] Furthermore, the connector screw has several functional surfaces at one end away from the screw head, and the projection module has an insertion hole, which is a polygonal hole. The connector screw extends into the insertion hole of the projection module at one end away from the screw head, and is positioned and prevented from rotating by the several functional surfaces.

[0012] Furthermore, the connector screw has an axially penetrating through hole inside, through which the wiring harness of the projection module can pass.

[0013] Furthermore, the connector has several sealing grooves on its outer side, and each of the sealing grooves contains an O-ring.

[0014] Furthermore, a marker light, a light-transmitting element, and an exterior trim are provided at the end of the projection lamp housing away from the connector.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. High reliability fixation: The inclined expansion structure and knurled texture provide strong vibration resistance, ensuring that the projection lamp will not loosen in high-frequency vibration scenarios such as motorcycles and ATVs.

[0016] 2. Quick disassembly and maintenance: The expansion sleeve can be released by rotating the connector in the opposite direction, eliminating the need for tools to disassemble the round tube components, thus improving maintenance efficiency by more than 50%.

[0017] 3. Multifunctional integration: The projection module (ground width indication / turning projection) and the side marker lights (vehicle side width indication) work together to enhance nighttime driving safety.

[0018] 4. Wide adaptability: Compatible with different pipe diameters (adaptive adjustment via expansion sleeve), suitable for round pipe handle scenarios such as motor vehicles, non-motor vehicles, and toy cars.

[0019] 5. Long-lasting sealing protection: The double O-ring design achieves three-dimensional sealing, extending the life of electronic components and expanding the product's applicable regions (humid and dusty environments). Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 A schematic diagram of the installed cylindrical handle fixing structure of a projection lamp; Figure 2 for Figure 1 Sectional view of AA; Figure 3 This is a schematic diagram of the expansion sleeve structure; Figure 4 This is a schematic diagram of the connector screw structure; Figure 5 This is a schematic diagram showing the connection between the connector screw and the projection module; Figure 6 An exploded view of a cylindrical handle fixing structure for a projection lamp.

[0021] The components in the diagram are labeled as follows: 1. Round tube handle; 2. Projector lamp housing; 3. Exterior trim; 4. Connector screw; 401. First bevel; 402. Slide groove; 403. Through hole; 404. Functional surface; 5. Expansion sleeve; 501. Expansion groove; 502. Knurled pattern; 503. Third bevel; 504. Expansion notch; 6. Projection module; 7. Connector; 8. Wiring harness; 9. First O-ring; 10. Second O-ring; 11. First positioning screw; 12. Second positioning screw; 13. Positioning recess; 14. First threaded hole; 15. Second threaded hole; 16. Parking light; 17. Light-transmitting component. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. They should not be construed as limiting the specific protection scope of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0024] A cylindrical handle 1 fixing structure for a projection lamp, such as Figure 1-6 As shown, it includes a connector screw 4, an expansion sleeve 5, a connector 7, a projection module 6, and a projection lamp housing 2. The projection module 6 and the projection lamp housing 2 are both mounted on the connector 7, and the projection lamp housing 2 is located outside the projection module 6. The expansion sleeve 5 is fitted onto the connector screw 4. The connector 7 is threadedly connected to the connector screw 4 and can drive the expansion sleeve 5 to expand outward. The connector screw 4 and the expansion sleeve 5 are disposed inside the round tube handle 1.

[0025] Preferably, the expansion sleeve 5 is provided with a plurality of expansion slots 501, and the expansion slots 501 are provided with expansion notches 504 at the ends away from the openings.

[0026] Preferably, the screw head of the connector screw 4 is provided with a first inclined surface 401, the connector 7 is provided with a second inclined surface, and the two ends of the expansion sleeve 5 are provided with a third inclined surface 503. The first inclined surface 401 and the second inclined surface can respectively contact the third inclined surface 503 at both ends of the expansion sleeve 5, so that the expansion sleeve 5 expands outward.

[0027] Preferably, the outer surface of the expansion sleeve 5 is provided with knurled texture 502.

[0028] Preferably, the outer ring of the projection module 6 end is provided with a plurality of positioning recesses 13, the connector 7 is provided with a connecting ring, the connecting ring is provided with a plurality of first threaded holes 14, a first positioning screw 11 is provided in the first threaded hole 14, one end of the projection module 6 extends into the connecting ring, and the first positioning screw 11 passes through the first threaded hole 14 and extends into the positioning recess 13.

[0029] Preferably, the connector screw 4 has an axially arranged groove 402 at the end away from the screw head, and the projection module 6 has a radially penetrating second threaded hole 15 at its end. The second threaded hole 15 can be aligned with the first threaded hole 14. A second positioning screw 12 is provided in the second threaded hole 15. The second positioning screw 12 passes through the first threaded hole 14 and the second threaded hole 15 in sequence and extends into the groove 402.

[0030] Preferably, the connector screw 4 has a plurality of functional surfaces 404 at the end away from the screw head, and the projection module 6 has an insertion hole, which is a polygonal hole. The end of the connector screw 4 away from the screw head extends into the insertion hole of the projection module 6 and is positioned and prevented from rotating by the plurality of functional surfaces 404.

[0031] Preferably, the connector screw 4 has an axially penetrating through hole 403 inside, through which the wire harness 8 of the projection module 6 can pass, thereby facilitating wiring connection.

[0032] Preferably, the connector 7 has several sealing grooves on its outer side, and each of the sealing grooves has an O-ring. Specifically, the connector 7 is provided with a first sealing groove and a second sealing groove on its outer side. A first O-ring 9 is provided in the first sealing groove and a second O-ring 10 is provided in the second sealing groove. The first O-ring 9 contacts the inner wall of the round tube handle 1 and is used to seal the round tube handle 1 and the connector 7. The second O-ring 10 contacts the inner wall of the projection lamp housing 2 and is used to seal the projection lamp housing 2 and the connector 7.

[0033] Preferably, a marker light 16, a light-transmitting element 17, and an exterior trim 3 are provided at the end of the projection lamp housing 2 away from the connector 7.

[0034] principle: 1. Expansion-fixed structure By rotating connector 7, the connector screw 4 is driven to move axially. The first bevel 401 of the screw head is pressed against the third bevel 503 at the end of the expansion sleeve 5. At the same time, the second bevel of connector 7 interacts with the bevel at the other end of the expansion sleeve 5, forcing the expansion sleeve 5 to expand radially. The knurled pattern 502 on the outer wall of the expansion sleeve 5 tightly engages with the inner wall of the round tube handle 1, forming an anti-slip fixation.

[0035] Adaptive pipe diameter: The expansion slot 501 and expansion notch 504 design of the expansion sleeve 5 allow it to adapt to round pipe handles 1 of different diameters.

[0036] Anti-rotation reliability: The knurled 502 provides a high coefficient of friction, completely preventing the projection module 6 from loosening or deflecting during vibration.

[0037] Non-destructive installation: No drilling or welding is required on the round tube, protecting the structural integrity of the handle.

[0038] 2. Triple anti-transfer mechanism Positioning screw + recess: The first positioning screw 11 passes through the first threaded hole 14 of the connector 7 and is embedded in the positioning recess 13 of the projection module 6, so as to realize the connection and installation of the projection module 6 and the connector 7, while restricting circumferential rotation.

[0039] Functional surface mating: The polygonal functional surface 404 at the end of the connector screw 4 engages with the polygonal insertion hole of the projection module 6 to achieve axial anti-rotation.

[0040] Slide limiting: The second positioning screw 12 passes through the first threaded hole 14 and the second threaded hole 15 and then extends into the slide 402 of the connector screw 4, limiting the rotation of the connector 7.

[0041] Multiple anti-rotation designs ensure that the projection lamp maintains a stable light path during vehicle vibrations, preventing the projected image from shifting.

[0042] 3. Sealing and wiring optimization Double O-ring seal: Two sealing grooves are provided on the outside of connector 7 (corresponding to the round tube handle 1 and the projection lamp housing 2 respectively) to prevent moisture and dust from entering.

[0043] Axial through-hole wiring: The signal harness 8 passes through the through-hole 403 inside the connector screw 4 to avoid interference with moving parts.

[0044] IP67 protection: The double-sealed structure is suitable for harsh environments such as rain and sandstorms.

[0045] Harness protection: The inner wall of the 403 through hole is smooth to prevent cable wear or tangling.

[0046] advantage: 1. High reliability fixation: The inclined expansion structure and knurled 502 provide strong vibration resistance, ensuring that the projector lamp will not loosen in high-frequency vibration scenarios such as motorcycles and ATVs.

[0047] 2. Quick disassembly and maintenance: simply rotate the connector 7 in the reverse direction to release the expansion sleeve 5, eliminating the need for tools to disassemble the round tube components and improving maintenance efficiency by more than 50%.

[0048] 3. Multifunctional integration: The projection module 6 (ground width indication / turning projection) and the side marker light 16 (vehicle side width indication) work together to enhance nighttime driving safety.

[0049] 4. Wide adaptability: Compatible with different pipe diameters (adaptive adjustment via expansion sleeve 5), suitable for round pipe handle scenarios such as motor vehicles, non-motor vehicles, and toy cars.

[0050] 5. Long-lasting sealing protection: The double O-ring design achieves three-dimensional sealing, extending the life of electronic components and expanding the product's applicable regions (humid and dusty environments).

[0051] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cylindrical handle fixing structure for a projection lamp, characterized in that: The device includes a connector screw, an expansion sleeve, a connector, a projection module, and a projection lamp housing. The projection module and the projection lamp housing are both mounted on the connector, with the projection lamp housing located outside the projection module. The expansion sleeve is fitted onto the connector screw, and the connector is threadedly connected to the connector screw, enabling the expansion sleeve to expand outward. The connector screw and the expansion sleeve are located inside a round tube handle.

2. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The expansion sleeve is provided with a plurality of expansion slots, and an expansion notch is provided at the end of the expansion slot away from the opening.

3. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The connector screw has a first inclined surface at its head, the connector has a second inclined surface, and the expansion sleeve has a third inclined surface at both ends. The first and second inclined surfaces can contact the third inclined surfaces at both ends of the expansion sleeve, causing the expansion sleeve to expand outward.

4. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The outer surface of the expansion sleeve is provided with knurled patterns.

5. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The projection module has several positioning recesses on its outer ring at the end. The connector has a connecting ring with several first threaded holes. A first positioning screw is installed in each of the first threaded holes. One end of the projection module extends into the connecting ring, and the first positioning screw passes through the first threaded hole and extends into the positioning recess.

6. The cylindrical handle fixing structure for a projection lamp according to claim 5, characterized in that: The connector screw has an axially arranged groove at the end away from the screw head, and the projection module end has a radially penetrating second threaded hole that can be aligned with the first threaded hole. A second positioning screw is provided in the second threaded hole, and the second positioning screw passes through the first threaded hole and the second threaded hole in sequence and extends into the groove.

7. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The connector screw has several functional surfaces at one end away from the screw head. The projection module has an insertion hole, which is a polygonal hole. The connector screw extends into the insertion hole of the projection module at one end away from the screw head and is positioned and prevented from rotating by the several functional surfaces.

8. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The connector screw has an axial through hole inside, through which the wiring harness of the projection module can pass.

9. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The connector has several sealing grooves on its outer side, and each sealing groove contains an O-ring.

10. The cylindrical handle fixing structure for a projection lamp according to claim 1, characterized in that: The projection lamp housing is provided with a marker light, a light-transmitting element, and an exterior trim at the end away from the connector.

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