Flashlight

Abstract

The utility model relates to a flashlight which comprises a flashlight body, a flashlight head, a rear cover and a battery, the two ends of the flashlight body are detachably connected with the flashlight head and the rear cover respectively, the battery is located in the flashlight body, the flashlight body comprises a metal outer flashlight body and a plastic inner flashlight body, and the metal outer flashlight body is arranged on the plastic inner flashlight body in a sleeved mode. A positioning mechanism for preventing relative rotation of the metal outer cylinder and the plastic inner cylinder is arranged between the metal outer cylinder and the plastic inner cylinder, and a notch penetrating in the axial direction is formed in the metal outer cylinder. The flashlight has the advantages that the metal outer barrel is located on the outermost side, so that the holding hand feeling is good, the plastic inner barrel is located on the inner side, the waterproof performance is good, and the barrel body has the excellent waterproof performance and the good holding hand feeling; the plastic inner cylinder and the metal outer cylinder cannot rotate relatively through the positioning mechanism, so that the holding stability is ensured; due to the design of the notches, the machining difficulty of the metal outer barrel can be reduced, and the metal outer barrel can be better attached to the plastic inner barrel.

Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, and in particular to a flashlight. Background Technology

[0002] Flashlights are a common lighting tool used in people's daily lives. Their outer surface is generally made of metal or plastic. Metal flashlights have a good grip but are difficult to mold into one piece, resulting in relatively poor water resistance. Plastic flashlights are usually molded into one piece and have good water resistance, but plastic flashlights have a poor grip. Utility Model Content

[0003] One objective of this application is to provide a flashlight that has a good grip and excellent waterproof performance.

[0004] The technical solution adopted in this application is as follows: a flashlight, including a tube body, a lamp head, a back cover and a battery. The two ends of the tube body are detachably connected to the lamp head and the back cover respectively. The battery is located inside the tube body. The tube body includes a metal outer tube and a plastic inner tube. The metal outer tube is sleeved on the plastic inner tube. A positioning mechanism is provided between the metal outer tube and the plastic inner tube to prevent them from rotating relative to each other. A notch is provided on the metal outer tube that penetrates along the axial direction.

[0005] Compared with the prior art, the advantages of this application are that the metal outer tube is located on the outermost side, which makes the grip feel good, and the plastic inner tube is located on the inner side, which has good waterproof performance. This makes the tube both waterproof and comfortable to hold. The positioning mechanism prevents the plastic inner tube and the metal outer tube from rotating relative to each other, ensuring the stability of the grip. The notch design reduces the processing difficulty of the metal outer tube and allows the metal outer tube to fit more closely to the plastic inner tube.

[0006] In some embodiments of this application, the plastic inner cylinder is provided with outward protrusions, and the two sides of the protrusions are respectively attached to the two sides of the notch; the distance from the highest point of the two sides of the protrusions to the center of the plastic inner cylinder is the same as the distance from the highest point of the two sides of the notch to the center of the plastic inner cylinder.

[0007] In some embodiments of this application, the plastic inner cylinder is made of transparent plastic; a solar charging panel is provided inside the plastic inner cylinder, the solar charging panel is located directly below the notch, and the solar charging panel is electrically connected to the battery.

[0008] Furthermore, the plastic inner cylinder is equipped with an LED light panel, which is electrically connected to the battery. An illumination hole is provided on the metal outer cylinder, and the LED light panel is located directly below the illumination hole. A detachable transparent acrylic plate is provided on the illumination hole.

[0009] Furthermore, at least one partition plate is provided on the inner surface of the plastic inner cylinder, and the two sides of the partition plate form a first mounting cavity and a second mounting cavity with the inner wall of the plastic inner cylinder. The solar charging panel is located in the first mounting cavity, and the battery is located in the second mounting cavity.

[0010] In some embodiments of this application, a control board is provided inside the plastic inner cylinder, and a through hole is provided on the plastic inner cylinder. A switch button connected to the control board is provided on the through hole. A metal ring is fitted on the plastic inner cylinder at the through hole, and one end of the metal ring is attached to one end of the metal outer cylinder. A button hole is provided on the metal ring, and the switch button passes through the button hole.

[0011] Furthermore, the control board is provided with a charging interface, the plastic inner cylinder is provided with a charging hole, and the metal ring is provided with a plug hole, with the charging hole located directly below the plug hole; the plastic inner cylinder is provided with a waterproof plug that mates with the plug hole, and the waterproof plug is connected to the plastic inner cylinder; the charging interface is located directly below the charging hole, and the waterproof plug has a protrusion on the side facing the charging interface, which mates with the charging hole.

[0012] Furthermore, the battery is connected to the control board via a plug and a slot; the lamp holder is connected to the control board via a plug and a slot.

[0013] Furthermore, a battery retaining ring is provided on the side of the plastic inner cylinder facing the rear cover. The battery retaining ring passes through the plastic inner cylinder, and the battery passes through the battery retaining ring.

[0014] Furthermore, the plastic inner cylinder is provided with an inwardly protruding blocking block, and one side of the battery is in contact with the blocking block; the rear cover is provided with a pressing block, and the two sides of the pressing block are in contact with the rear cover and the battery, respectively.

[0015] The flashlight obtained by this utility model has the following advantages: 1. The body has both the grip feel of metal and the waterproof performance of plastic; 2. It has a solar charging panel, which is located inside the plastic inner tube without the need for openings, providing good protection; 3. It has a side LED light panel, which is also located inside the plastic inner tube without the need for openings, providing good protection; 4. The side of the plastic inner tube has only one through hole and one charging hole, resulting in high structural strength and good waterproof performance; 5. The battery is well installed and fixed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 2 ;

[0018] Figure 3This is an exploded view of Embodiment 1 of this utility model;

[0019] Figure 4 This is a top view of Embodiment 1 of this utility model;

[0020] Figure 5 yes Figure 4 A cross-sectional view along the AA direction;

[0021] Figure 6 yes Figure 4 A cross-sectional view along the BB direction in the middle;

[0022] Figure 7 yes Figure 4 A cross-sectional view along the CC direction;

[0023] Figure 8 yes Figure 5 Enlarged view of part D in the middle

[0024] Figure 9 yes Figure 5 Enlarged view of part E in the image;

[0025] Figure 10 yes Figure 4 A cross-sectional view along the FF direction in the image;

[0026] Figure 11 This is a schematic diagram of the metal outer cylinder of Embodiment 1 of this utility model;

[0027] Figure 12 This is a schematic diagram of the structure of the plastic inner cylinder in Embodiment 1 of this utility model. Figure 1 ;

[0028] Figure 13 This is a schematic diagram of the structure of the plastic inner cylinder in Embodiment 1 of this utility model. Figure 2 .

[0029] In the diagram: 1. Cylinder body; 2. Lamp head; 3. Back cover; 4. Battery; 5. Metal outer cylinder; 6. Plastic inner cylinder; 7. Notch; 8. Boss; 9. Solar charging panel; 10. LED light panel; 11. Lighting hole; 12. Transparent acrylic sheet; 13. Divider plate; 14. First mounting cavity; 15. Second mounting cavity; 16. Control board; 17. Through hole; 18. Switch button; 19. Metal ring; 20. Button hole; 21. Charging interface; 22. Charging hole; 23. Plug hole; 24. Waterproof plug; 25. Protrusion; 26. Battery retaining ring; 27. Blocking block; 28. Pressing block; 29. ​​First slot; 30. First block; 31. Second slot; 32. Second block; 33. Third slot; 34. Third block; 35. Control board mounting hole; 36. LED light panel mounting slot; 37. Platform. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0031] Example 1:

[0032] This embodiment provides a flashlight, such as Figure 1 , Figure 2 , Figure 3 As shown, the device includes a cylindrical body 1, a lamp holder 2, a back cover 3, and a battery 4. The two ends of the cylindrical body 1 are detachably connected to the lamp holder 2 and the back cover 3, respectively. The battery 4 is located inside the cylindrical body 1. The cylindrical body 1 includes a metal outer cylinder 5 and a plastic inner cylinder 6. The metal outer cylinder 5 is fitted onto the plastic inner cylinder 6, and a positioning mechanism is provided between the metal outer cylinder 5 and the plastic inner cylinder 6 to prevent relative rotation. An axially penetrating notch 7 is provided on the metal outer cylinder 5. The lamp holder 2 houses an LED bulb. The plastic inner cylinder 6 is integrally molded, and its cross-section is a closed structure. The cross-section of the metal outer cylinder 5 matches the cross-section of the plastic inner cylinder 6, providing good waterproof performance. The closed structure can be circular, elliptical, rectangular, triangular, or other shapes with connected ends. Figure 4 , Figure 6 As shown, the positioning mechanism includes a first slot 29 disposed on the inner surface of the metal outer cylinder 5 and a first block 30 disposed on the outer surface of the plastic inner cylinder 6. Positioning is achieved by the cooperation of the first slot 29 and the first block 30, preventing the plastic inner cylinder 6 and the metal outer cylinder 5 from rotating relative to each other; the battery 4 is located inside the plastic inner cylinder 6. In this embodiment, the cross-section of the plastic inner cylinder 6 is circular; external threads are provided at both ends of the plastic inner cylinder 6, and corresponding internal threads are provided on the lamp holder 2 and the rear cover 3. The maximum diameter of the external thread on the side of the plastic inner cylinder 6 facing the rear cover 3 is greater than the diameter of the inner surface of the metal outer cylinder 5, and the maximum diameter of the external thread on the side of the plastic inner cylinder 6 facing the lamp holder 2 is less than the diameter of the inner surface of the metal outer cylinder 5.

[0033] The outer metal cylinder 5 is located on the outermost side, providing a good grip, while the inner plastic cylinder 6 is located on the inner side, providing good waterproof performance. This gives the cylinder 1 both excellent waterproof performance and a good grip. The positioning mechanism prevents the inner plastic cylinder 6 and the outer metal cylinder 5 from rotating relative to each other, ensuring grip stability. The design of the notch 7 reduces the processing difficulty of the outer metal cylinder 5, allowing the outer metal cylinder 5 to fit more closely to the inner plastic cylinder 6.

[0034] To ensure more reliable installation of the metal outer cylinder 5, such as Figure 6 , Figure 12As shown, the plastic inner cylinder 6 has outward-facing protrusions 8, with both sides of the protrusions 8 respectively fitting against the sides of the notch 7. The distance from the highest point of each side of the protrusions 8 to the center of the plastic inner cylinder 6 is the same as the distance from the highest point of each side of the notch 7 to the center of the plastic inner cylinder 6. The protrusions 8 fitting against the sides of the notch 7 can prevent the metal outer cylinder 5 from rotating. At the same time, when installing the metal outer cylinder 5, the notch 7 can be aligned with the protrusions 8 for installation, facilitating precise installation and ensuring the correct installation direction of the metal outer cylinder 5. The maximum diameter of the protrusions 8 is the same as the maximum diameter of the metal outer cylinder 5, and the smooth transition between the two ensures that the outer surface of the cylinder 1 is a smooth circle, providing a comfortable grip.

[0035] To ensure light transmission and extend the service life, such as Figure 5 As shown, the inner plastic cylinder 6 is made of transparent plastic, and a solar charging panel 9 is installed inside the inner plastic cylinder 6. The solar charging panel 9 is located directly below the notch 7 and is electrically connected to the battery 4. The solar charging panel 9 can be used to charge the battery 4 using solar energy, extending the flashlight's usage time and facilitating outdoor charging. The solar charging panel 9 is located inside the inner plastic cylinder 6, providing good protection for it. The inner plastic cylinder 6 is transparent, ensuring that light can enter the interior after shining on it. There is no metal outer cylinder 5 blocking the notch 7, allowing light to enter and reach the solar charging panel 9.

[0036] To improve functionality, such as Figure 5 , Figure 11 As shown, the inner plastic cylinder 6 is equipped with an LED light panel 10, which is electrically connected to the battery 4. An illumination hole 11 is provided on the outer metal cylinder 5, and the LED light panel 10 is located directly below the illumination hole 11. A detachable transparent acrylic plate 12 is provided on the illumination hole 11. The design of the LED light panel 10 allows the side of the cylinder 1 to also be used for lighting. The LED light panel 10 is located inside the inner plastic cylinder 6, providing good protection. The illumination hole 11 ensures that the light from the LED light panel 10 can pass through the outer metal cylinder 5 and illuminate the outside. The transparent acrylic plate 12 has good scratch resistance, protecting the inner plastic cylinder 6 at the illumination hole 11 and preventing scratches that could affect the lighting effect of the LED light panel 10.

[0037] Specifically, such as Figure 8 , Figure 13 As shown, a second slot 31 is provided on the outer surface of the plastic inner cylinder 6, and a second locking block 32 that cooperates with the second slot 31 is provided on the transparent acrylic plate 12. Part of the second slot 31 is located directly below the lighting hole 11, and the remaining part of the second slot 31 extends outward from directly below the lighting hole 11; the solar charging plate 9 and the LED light plate 10 are located on opposite sides of the plastic inner cylinder 6.

[0038] For reliable installation of the solar charging panel 9, such as Figure 7 As shown, at least one partition plate 13 is provided on the inner surface of the plastic inner cylinder 6. The two sides of the partition plate 13 form a first mounting cavity 14 and a second mounting cavity 15 with the inner wall of the plastic inner cylinder 6. The solar charging panel 9 is located in the first mounting cavity 14, and the battery 4 is located in the second mounting cavity 15, separating the solar charging panel 9 and the battery 4 to reduce the influence between them. At the same time, the partition plate 13 can restrict the movement of the solar charging panel 9 and ensure the reliable installation of the solar charging panel 9. In this embodiment, two pairs of partition plates 13 are arranged, with two partition plates 13 in each pair arranged symmetrically with respect to the center line of the plastic inner cylinder 6. One pair of partition plates 13 forms a first mounting cavity 14 and a second mounting cavity 15 with the inner wall of the plastic inner cylinder 6. The other pair of partition plates 13 is located in the second mounting cavity 15. The LED light panel 10 and the battery 4 are located on both sides of the partition plate 13 in the second mounting cavity 15, separating the LED light panel 10 and the battery 4 to reduce the influence between them. At the same time, it can restrict the movement of the LED light panel 10 and ensure the reliable installation of the LED light panel 10.

[0039] For reliable control, such as Figure 10 As shown, a control board 16 is provided inside the plastic inner cylinder 6. A through hole 17 is provided on the plastic inner cylinder 6, and a switch button 18 connected to the control board 16 is provided on the through hole 17. A metal ring 19 is fitted on the plastic inner cylinder 6 at the through hole 17, and the two ends of the metal ring 19 are respectively attached to the lamp holder 2 and the metal outer cylinder 5. A button hole 20 is provided on the metal ring 19, and the switch button 18 passes through the button hole 20. In this embodiment, the LED bulb, battery 4, solar charging panel 9, LED light panel 10 and switch button 18 built into the lamp holder 2 are all electrically connected to the control board 16; the control board 16 and the solar charging panel 9 are attached as one piece. The switch button 18 is used to control the lighting on and off of the LED bulb and LED light panel 10 built into the lamp holder 2; the design of the metal ring 19 facilitates the protection of the switch button 18, and at the same time increases the feel of the switch button 18, so that the metal outer cylinder 5 only needs to be an open arc shape, reducing the processing difficulty of the metal outer cylinder 5.

[0040] like Figure 10 As shown, a third groove 33 is provided on the outer surface of the plastic inner cylinder 6, and a third locking block 34 that cooperates with the third groove 33 is provided on the inner surface of the metal ring 19. Through the cooperation of the third groove 33 and the third locking block 34, the metal ring 19 and the plastic inner cylinder 6 will not rotate relative to each other; the diameter of the metal ring 19 is the same as the diameter of the metal outer cylinder 5.

[0041] To facilitate charging of battery 4, such as Figure 9As shown, the control board 16 is equipped with a charging interface 21, the plastic inner cylinder 6 has a charging hole 22, and the metal ring 19 has a plug hole 23. The charging hole 22 is located directly below the plug hole 23. The plastic inner cylinder 6 is equipped with a waterproof plug 24 that mates with the plug hole 23, and the waterproof plug 24 is connected to the plastic inner cylinder 6. The charging interface 21 is located directly below the charging hole 22, and the waterproof plug 24 has a protrusion 25 on the side facing the charging interface 21, which mates with the charging hole 22. The waterproof plug 24 can block the plug hole 23 to prevent external rainwater from entering and improve waterproof performance. The protrusion 25, in conjunction with the charging hole 22, can prevent rainwater entering the plug hole 23 from entering the charging hole 22, further improving waterproof performance.

[0042] like Figure 12 , Figure 13 As shown, the plastic inner cylinder 6 has an outwardly protruding platform 37. The through hole 17 and the charging hole 22 are both located on the platform 37. The two ends of the metal ring 19 are located outside the platform 37, which makes the through hole 17 and the charging hole 22 located at a high position. Rainwater entering from both sides of the metal ring 19 will be at a low position and cannot enter the interior of the plastic inner cylinder 6 through the through hole 17 and the charging hole 22, thus ensuring waterproof performance.

[0043] For easy connection of battery 4, battery 4 is connected to control board 16 via a plug and slot; the LED bulb built into lamp holder 2 is also connected to control board 16 via a plug and slot. This plug-and-slot connection structure is simple and low-cost.

[0044] To ensure reliable installation of the battery 4, a battery retaining ring 26 is provided on the side of the plastic inner cylinder 6 facing the rear cover 3. The battery retaining ring 26 passes through the plastic inner cylinder 6, and the battery 4 passes through the battery retaining ring 26. The battery retaining ring 26 is made of plastic and has a certain degree of deformation capability. When the battery retaining ring 26 is inserted into the plastic inner cylinder 6, it is pressed inward to contact the surface of the battery 4, which can prevent the battery 4 from sliding out of the plastic inner cylinder 6. In addition, the battery retaining ring 26 restricts the radial movement of the battery 4 and prevents the battery 4 from colliding radially.

[0045] The battery retaining ring 26 is provided with a control board mounting hole 35. The control board 16 is partially inserted through the control board mounting hole 35 on the side facing the rear cover, and the remaining part is attached to the side of the battery retaining ring 26 facing the lamp head 2. The control board 16 is reliably installed and can prevent the control board 16 from falling out of the plastic inner cylinder 6 on the side facing the rear cover 3. The battery retaining ring 26 is provided with an LED light board mounting groove 36. The LED light board 10 is inserted through the LED light board mounting groove 36 on the side facing the rear cover 3. The LED light board 10 is reliably installed and can prevent the LED light board 10 from falling out of the plastic inner cylinder 6 on the side facing the rear cover 3.

[0046] To ensure reliable installation of the battery 4, the plastic inner cylinder 6 is provided with an inwardly protruding blocking block 27, with one side of the battery 4 fitting against the blocking block 27; the rear cover 3 is provided with a clamping block 28, with both sides of the clamping block 28 fitting against the rear cover 3 and the battery 4 respectively. The blocking block 27 limits the maximum insertion distance of the battery 4 inside the plastic inner cylinder 6, ensuring that at least part of the end of the battery 4 extends out of the battery retaining ring 26, facilitating the insertion and removal of the battery 4; the two ends of the battery 4 are fitted against the blocking block 27 and the clamping block 28 respectively, ensuring reliable installation of the battery 4.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A flashlight, comprising a body (1), a lamp head (2), a back cover (3), and a battery (4), wherein the two ends of the body (1) are respectively connected to the lamp head (2) and the back cover (3), and the battery (4) is located inside the body (1), characterized in that, The cylinder (1) includes a metal outer cylinder (5) and a plastic inner cylinder (6). The metal outer cylinder (5) is fitted onto the plastic inner cylinder (6). A positioning mechanism is provided between the metal outer cylinder (5) and the plastic inner cylinder (6) to prevent them from rotating relative to each other. A notch (7) is provided on the metal outer cylinder (5) that passes through along the axial direction.

2. A flashlight according to claim 1, characterized in that: The plastic inner cylinder (6) is provided with an outward protrusion (8), and the two sides of the protrusion (8) are respectively attached to the two sides of the notch (7); the distance from the highest point on both sides of the protrusion (8) to the center of the plastic inner cylinder (6) is the same as the distance from the highest point on both sides of the notch (7) to the center of the plastic inner cylinder (6).

3. A flashlight according to claim 1, characterized in that: The plastic inner cylinder (6) is made of transparent plastic; a solar charging panel (9) is provided inside the plastic inner cylinder (6), the solar charging panel (9) is located below the notch (7), and the solar charging panel (9) is electrically connected to the battery (4).

4. A flashlight according to claim 3, characterized in that: The plastic inner cylinder (6) is equipped with an LED light panel (10), which is electrically connected to the battery (4). The metal outer cylinder (5) is provided with an illumination hole (11), and the LED light panel (10) is located below the illumination hole (11). A detachable transparent acrylic plate (12) is provided on the illumination hole (11).

5. A flashlight according to claim 3, characterized in that: At least one partition plate (13) is provided on the inner surface of the plastic inner cylinder (6). The two sides of the partition plate (13) and the inner wall of the plastic inner cylinder (6) form a first mounting cavity (14) and a second mounting cavity (15). The solar charging panel (9) is located in the first mounting cavity (14), and the battery (4) is located in the second mounting cavity (15).

6. A flashlight according to claim 1, characterized in that: The plastic inner cylinder (6) is provided with a control plate (16), and a through hole (17) is provided on the plastic inner cylinder (6). A switch button (18) is provided on the through hole (17). A metal ring (19) is fitted on the plastic inner cylinder (6) at the through hole (17). One end of the metal ring (19) is attached to one end of the metal outer cylinder (5). A button hole (20) is provided on the metal ring (19), and the switch button (18) is inserted through the button hole (20).

7. A flashlight according to claim 6, characterized in that: The control panel (16) is provided with a charging interface (21), the plastic inner cylinder (6) is provided with a charging hole (22), and the metal ring (19) is provided with a plug hole (23). The charging hole (22) is located below the plug hole (23). The plastic inner cylinder (6) is provided with a waterproof plug (24) that matches the plug hole (23). The waterproof plug (24) is connected to the plastic inner cylinder (6). The charging interface (21) is located below the charging hole (22). The waterproof plug (24) has a protrusion (25) on the side facing the charging interface (21). The protrusion (25) matches the charging hole (22).

8. A flashlight according to claim 6, characterized in that: The battery (4) is connected to the control board (16) via a plug and a slot; the lamp head (2) is connected to the control board (16) via a plug and a slot.

9. A flashlight according to claim 6, characterized in that: The plastic inner cylinder (6) has a battery retaining ring (26) on the side facing the rear cover (3). The battery retaining ring (26) is inserted through the plastic inner cylinder (6), and the battery (4) is inserted through the battery retaining ring (26).

10. A flashlight according to claim 8, characterized in that: The plastic inner cylinder (6) is provided with an inwardly protruding blocking block (27), one side of the battery (4) is attached to the blocking block (27); the rear cover (3) is provided with a pressing block (28), two sides of the pressing block (28) are respectively attached to the rear cover (3) and the battery (4).

Images