Hand-operated flashlight

Abstract

According to the technical scheme, the hand-operated flashlight is characterized in that the hand-operated flashlight comprises a lamp shell, the lamp shell is provided with a rocker arm used for power generation, a rotary disc is installed on the lamp shell, a first shaft is rotationally connected between one end of the rocker arm and the rotary disc, a handle knob is installed at the other end of the rocker arm, and the lamp shell is provided with a long-strip-shaped groove where the rocker arm and the handle knob are placed in a rotating mode. The upper end of the inclined face is higher than the side face of the lamp shell where the inclined face is located so that a height gap can be formed between the rocker arm and the lamp shell, the overturning angle of the handle can be limited through the inclined face design, the distance between the overturned handle and the lamp shell of a mobile phone can be guaranteed, and a user can rotate the handle at will; and the distance between the handle and the lamp shell does not need to be controlled by adjusting the force, so that the hand-cranking operation difficulty of the flashlight is reduced, and the operation is simpler.

Description

Technical Field

[0001] The utility model relates to a flashlight, and more specifically, to a hand-cranked flashlight. Background Art

[0002] When people are in the wild or in areas without electricity, especially at night, a flashlight is needed. When the battery of the flashlight runs out of power, a hand-cranking power generation device needs to be used for timely charging to ensure the outdoor use of the flashlight.

[0003] Now a Chinese patent document with the publication number CN2844648Y is retrieved, whose name is a hand-cranked power generation mobile phone charging flashlight with a radio. In the embodiment of its specification, it is recorded that "the hand-cranking drive system 13 consists of a handle, a rocker arm, and a rotating disk. The rotating disk is rotatably installed on the side wall of the lower lamp housing 1. The rotating disk can rotate 360 degrees on the lower lamp housing 1. One end of the rocker arm is movably connected to the rotating disk and can flip 180 degrees around the connecting pin shaft. The other end is movably connected to the handle. The handle can rotate 360 degrees around its installation axis. There is a recessed groove for accommodating the handle at the rear end outside the lower lamp housing 1".

[0004] However, during the hand-cranking process after the above-mentioned handle flips, it is easy to rub against the lamp housing, so that the user must control the pressure on the handle during the hand-cranking process, and the difficulty of hand-cranking power generation operation is relatively high. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hand-cranked flashlight. By using an inclined plane design to limit the flipping angle of the handle, the distance between the flipped handle and the lamp housing of the flashlight is ensured. Users can rotate the handle arbitrarily without adjusting the force to control the distance between the handle and the lamp housing, thus reducing the difficulty of hand-cranking operation of the flashlight and making the operation simpler.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A hand-cranked flashlight includes a lamp housing. The lamp housing is provided with a rocker arm for power generation. A turntable is installed on the lamp housing. A first shaft is rotatably connected between one end of the rocker arm and the turntable. A pinch handle is installed at the other end of the rocker arm. The lamp housing is provided with a long slot for the rocker arm and the pinch handle to be inserted and placed. The turntable is provided with an inclined plane against which the rocker arm abuts after turning out of the long slot. The upper end of the inclined plane is higher than the side surface of the lamp housing where it is located, so as to achieve a height gap between the rocker arm and the lamp housing.

[0008] Preferably, the turntable is provided with two limit plates. The two limit plates stand on both sides of the inclined plane. Both ends of the first shaft are installed with the two limit plates, and the rocker arm is located between the two limit plates.

[0009] Preferably, the inclined plane and the side surface of the lamp housing where it is located form an included angle a, and the angle range of the included angle a is 20 - 30 degrees.

[0010] Preferably, a clamping block for clamping the swing arm is fixed to the side wall of the long slot.

[0011] Preferably, there are two clamping blocks, and the two clamping blocks clamp both sides of the swing arm.

[0012] Preferably, the pinch handle is rotatably connected to the swing arm.

[0013] Preferably, there is a pulling gap between the pinch handle and the swing arm; when the swing arm turns into the long slot, the pulling gap is located above the long slot.

[0014] Preferably, a receiving groove is formed in the inclined surface, and a lifting block is rotatably connected in the receiving groove; when the lifting block rotates out of the receiving groove, the lifting block fits on the inclined surface.

[0015] Preferably, the lifting block is provided with a notch for pulling.

[0016] Preferably, a light source is provided at one end of the lamp housing, and radioactive stripes are provided around the light source.

[0017] In summary, the present utility model has at least one of the following beneficial effects:

[0018] (1) By using the inclined surface to set the swing arm to tilt upwards and incline the swing arm on the surface of the lamp housing, the lamp housing and the rotating swing arm will not come into contact and friction, and the user can rotate the handle arbitrarily without adjusting the force to control the distance between the handle and the lamp housing, making the manual operation of the flashlight easier and simpler.

[0019] (2) The clamping block positions the swing arm to prevent the swing arm from randomly disengaging from the long slot;

[0020] (3) The rotatable connection between the pinch handle and the swing arm can reduce the sliding friction between the user's fingers and the pinch handle, making it easier and simpler for the user to rotate the swing arm and reducing the difficulty of the manual operation of the flashlight.

[0021] (4) The setting of the pulling gap facilitates the user to apply force with the fingers at this gap to quickly and simply take out the swing arm from the long slot, making the overall process of using the swing arm easier and simpler for the user and reducing the difficulty of the manual operation of the flashlight.

[0022] (5) There are two states of the lifting block. One state is located in the receiving groove, and the other state is against the upper part of the inclined surface. These two states cause the inclination angle between the swing arm and the lamp housing to change when the swing arm rotates. That is, when the lifting block abuts against the inclined surface, the included angle a between the swing arm and the lamp housing is larger, and the radius of the swing arm rotating around the turntable becomes smaller, which is more suitable for users with shorter arms;

[0023] And when the lifting block is on the inclined surface, the swing arm presses on the lifting block during the rotation process. Therefore, the state of the lifting block cooperating with the rotation of the swing arm is very stable. Brief Description of the Drawings

[0024] Figure 1 is a schematic diagram of the flashlight structure in Embodiment 1 Figure 1 ;

[0025] Figure 2 is a schematic diagram of the positional relationship between the internal hand-crank charging system and the turntable of the flashlight in Embodiment 1;

[0026] Figure 3 is a schematic diagram of the flashlight structure when the rocker arm is located in the long slot in Embodiment 1;

[0027] Figure 4 is Figure 3 an enlarged view of part A of

[0028] Figure 5 is a schematic diagram of the flashlight structure when the rocker arm abuts against the inclined surface in Embodiment 1

[0029] Figure 6 is Figure 5 an enlarged view of part B in

[0030] Figure 7 is an exploded schematic diagram of the rocker arm and the pinch handle in Embodiment 1;

[0031] Figure 8 is a schematic diagram of the structure of the long slot on the lamp housing in Embodiment 1;

[0032] Figure 9 is Figure 8 an enlarged view of part C in

[0033] Figure 10 is a schematic diagram of the elevation block located in the receiving groove in Embodiment 2;

[0034] Figure 11 is a schematic diagram of the elevation block abutting against the inclined surface in Embodiment 2.

[0035] In the figure:

[0036] 1. Lamp housing; 11. Stripes;

[0037] 2. Long slot; 21. Block;

[0038] 31. Rocker arm; 32. Turntable; 33. First shaft; 34. Limiting plate; 35. Pinch handle; 36. Bolt; 37. Second rotating shaft;

[0039] 4. Inclined surface;

[0040] 51. Height gap; 52. Pushing gap;

[0041] 61. Receiving groove; 62. Elevation block; 63. Notch. Detailed Description of the Invention

[0042] The following further elaborates on the present utility model in conjunction with Appendices 1 - Appendices Figure 11 for a more detailed description.

[0043] Example 1, a hand - cranked flashlight, referring to Figure 1 , includes a lamp housing 1. On one side of the lamp housing 1, there are installed a playback hole of a tape recorder, a tape recorder switch knob, and a switch button for the light source. At one end of the lamp housing 1, there is a light source, and radioactive stripes 11 are arranged around the light source.

[0044] Referring to Figure 2 and Figure 3 , on the other side of the lamp housing 1, there is installed a rocker arm 31 for power generation. Inside the lamp housing 1, there is installed a hand - cranked power generation system, which belongs to the prior art. The rocker arm 31 is connected to the hand - cranked power generation system through a turntable 32. The hand - cranked power generation system is connected to a battery and charges the battery, and the battery supplies power to the light source;

[0045] A circular mounting hole is opened on the side of the lamp housing 1. The inner wall of the mounting hole is provided with a retaining ring. The turntable 32 is inserted into the mounting hole and can rotate freely within the mounting hole. A clamping ring that rotates synchronously is fixed to the turntable 32, and the clamping ring is located below the retaining ring;

[0046] Therefore, the turntable 32 and the clamping ring block the retaining ring front and back. Such a limiting mechanism prevents the turntable 32 from slipping out of the mounting hole. The lower end of the turntable 32 is fixed with a driving gear through a rotating shaft, and this driving gear meshes with the gear assembly of the hand - cranked power generation system; the driving gear is located inside the lamp housing 1, and the separation and limitation between the driving gear and the lamp housing 32 can also prevent the turntable 32 from slipping out of the mounting hole.

[0047] Therefore, by rotating the turntable 32, hand - cranked power generation can be carried out.

[0048] The turntable 32 is installed with a rocker arm 31, and the rocker arm 31 is used to drive the turntable 32 to rotate.

[0049] There is a first shaft 33 rotatably connected between one end of the rocker arm 31 and the turntable 32. Therefore, the rocker arm 31 can be flipped around the first shaft 33 on the turntable 32;

[0050] The other end of the rocker arm 31 is installed with a grip 35. The grip 35 is used for a user to hold and apply force with their fingers, and then drive the rocker arm 31 to rotate;

[0051] The lamp housing 1 is provided with a long slot 2 for the rocker arm 31 and the grip 35 to be retracted and placed. The end of the long slot 2 away from the turntable 32 is sunken, and the sunken part is used to place the grip 35.

[0052] The turntable 32 is provided with two limiting plates 34. The two limiting plates 34 stand on both sides of the inclined plane 4. Both ends of the first shaft 33 are installed with the two limiting plates 34, and the rocker arm 31 is located between the two limiting plates 34.

[0053] Refer to Figures 3 - 6 , the turntable 32 is provided with an inclined surface 4 against which the rocker arm 31 abuts after turning out of the long slot 2. The inclined surface 4 is arranged to slope upward from the position of the first shaft 33 towards the edge of the turntable 32, that is, it is arranged to slope upward from the middle position of the turntable 32 towards the edge position. Therefore, when the rocker arm 31 rotates around the first shaft 33 and abuts against the inclined surface 4, the rocker arm 31 is arranged to slope upward;

[0054] Refer to Figure 6 , the upper end of the inclined surface 4 is higher than the side surface of the lamp housing 1 where it is located to achieve a height gap 51 between the rocker arm 31 and the lamp housing 1. The purpose of setting the height gap 51 is to prevent contact between the outer surfaces of the rocker arm 31 and the lamp housing 1. When the rocker arm 31 rotates, there is no frictional resistance between the rocker arm 31 and the outer wall of the lamp housing 1. The user can rotate the handle arbitrarily without adjusting the force to control the distance between the handle and the lamp housing 1, making the manual operation of the flashlight easier and the operation simpler.

[0055] The side surface of the lamp housing 1 where it is located refers to the side on which the rocker arm 31 is located with respect to the lamp housing 1.

[0056] Refer to Figures 3 - 6 , the inclined surface 4 and the side surface of the lamp housing 1 where it is located form an included angle a, and the angle range of the included angle a is 20 - 30 degrees. In this embodiment, the angle of the included angle a is 26 degrees;

[0057] The larger the angle of the included angle a, the smaller the rotation radius of the grip 35 when the rocker arm 31 rotates. Since most users are adults and the swinging radius of the arm is relatively large, an included angle a of 26 degrees is adopted, which has a relatively large rotation radius of the rocker arm 31.

[0058] Refer to Figures 7 - 9 , the grip 35 is rotatably connected to the rocker arm 31. A second rotating shaft 37 is fixed at the end of the rocker arm 31, and the grip 35 is a cylinder; the grip 35 is sleeved on the second rotating shaft 37. Therefore, the grip 35 can rotate relative to the rocker arm 31. The purpose of this design is to reduce the frictional force between the user's fingers and the grip 35 during the rotation process.

[0059] A bolt 36 is inserted into the lower end of the grip 35, and the bolt 36 is fixed to the second rotating shaft 37. The head of the bolt 36 blocks the grip 35 to prevent the grip 35 from slipping off the second rotating shaft 37; the length of the second rotating shaft 37 is greater than the insertion depth of the grip 35. Therefore, after the bolt 36 and the second rotating shaft 37 are tightened, there is a gap between the head of the bolt 36 and the grip 35. Therefore, the grip 35 can slide slightly relative to the rocker arm 31;

[0060] When the rocker arm 31 is placed in the long slot 2 and the pinch handle 35 is located below the swing, under the action of gravity, the pinch handle 35 slides slightly downward relative to the rocker arm 31. The gap of this downward movement is the pulling gap 52 between the pinch handle 35 and the rocker arm 31. The user can insert a finger into the pulling gap 52 to pull the rocker arm 31 upward to take out the rocker arm 31 from the long slot 2.

[0061] When the rocker arm 31 rotates into the long slot 2, the bottom of the rocker arm 31 and the bottom of the long slot 2 are blocked, so that the pulling gap 52 is located above the long slot 2. Such a position setting makes it easier for the user's finger to contact the pulling gap 52, which is more conducive to taking out the rocker arm 31 from the long slot 2. The original intention of this design is to facilitate the user to easily generate electricity by hand.

[0062] The side wall of the long slot 2 is fixed with a clamping block 21 for clamping the rocker arm 31. There are two clamping blocks 21, and the two clamping blocks 21 frictionally clamp both sides of the rocker arm 31. In other embodiments, the clamping block 21 can be an elastic block, and the rocker arm 31 elastically presses the clamping block 21 for clamping.

[0063] Embodiment 2, a hand-cranked flashlight, the difference from Embodiment 1 is as follows, refer to Figures 10 - 11 , the inclined surface 4 is provided with a receiving groove 61, and a lifting block 62 is rotatably connected in the receiving groove 61; when the lifting block 62 is located in the receiving groove 61, the surface of the lifting block 62 is flush with the inclined surface 4;

[0064] A rotating shaft is provided between the lifting block 62 and the receiving groove 61 to facilitate the relative rotation of the two;

[0065] When the hand-cranked flashlight can be used with the lifting block 62 set downward by shaking the hand-cranked flashlight, the lifting block 62 is screwed out of the receiving groove 61;

[0066] Of course, in order to take out the lifting block 62 more easily, the lifting block 62 is provided with a notch 63 for pulling. The user can insert a fingernail or a flat screwdriver into the notch 63 to screw out the lifting block 62 from the receiving groove 61

[0067] When the lifting block 62 is screwed out of the receiving groove 61, the lifting block 62 fits on the inclined surface 4.

[0068] The design of the lifting block 62 is considered for girls or children with shorter arms, and the rocker arm 31 can be operated more easily; because the larger the angle between the rocker arm 31 and the side of the lamp housing 1 where it is located, the smaller the rotation radius of the rocker arm 31, making it easier for users with shorter arm segments to generate electricity by hand; and the lifting block 62 serves the purpose of adjusting the inclination angle of the rocker arm 31, so that the rocker arm 31 has two options for the rotation radius.

[0069] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A hand-cranked flashlight, comprising a lamp housing (1), the lamp housing (1) is provided with a rocker arm (31) for power generation, the lamp housing (1) is installed with a turntable (32), a first shaft (33) is rotatably connected between one end of the rocker arm (31) and the turntable (32), a grip (35) is installed at the other end of the rocker arm (31), and the lamp housing (1) is provided with a long slot (2) into which both the rocker arm (31) and the grip (35) can be inserted. It is characterized in that: The turntable (32) is provided with an inclined surface (4) against which the rocker arm (31) abuts after rotating out of the long slot (2). The upper end of the inclined surface (4) is higher than the side surface of the lamp housing (1) where it is located, so as to realize a height gap (51) between the rocker arm (31) and the lamp housing (1).

2. The hand-cranked flashlight according to claim 1, wherein: The turntable (32) is provided with two limiting plates (34). The two limiting plates (34) stand on both sides of the inclined surface (4). Both ends of the first shaft (33) are provided with the two limiting plates (34), and the rocker arm (31) is located between the two limiting plates (34).

3. The hand-cranked flashlight according to claim 1, characterized in that: The inclined surface (4) and the side surface of the lamp housing (1) where it is located form an included angle a, and the angle range of the included angle a is 20 - 30 degrees.

4. The hand-cranked flashlight according to claim 1, characterized in that: A clamping block (21) for clamping the rocker arm (31) is fixed on the side wall of the long slot (2).

5. The hand-cranked flashlight according to claim 4, characterized in that: There are two clamping blocks (21), and the two clamping blocks (21) clamp both sides of the rocker arm (31).

6. The hand-cranked flashlight according to claim 1 or 5, characterized in that: The handle (35) is rotatably connected to the rocker arm (31).

7. The hand-cranked flashlight according to claim 6, characterized in that: pinch There is a pulling gap (52) between the handle (35) and the rocker arm (31); When the rocker arm (31) rotates into the long slot (2), the pulling gap (52) is located above the long slot (2).

8. The hand-cranked flashlight according to claim 1, characterized in that: The inclined surface (4) is provided with a receiving groove (61), and a lifting block (62) is rotatably connected in the receiving groove (61); When the lifting block (62) rotates out of the receiving groove (61), the lifting block (62) fits on the inclined surface (4).

9. The hand-cranked flashlight according to claim 8, characterized in that: The lifting block (62) is provided with a notch (63) for pulling.

10. The hand-cranked flashlight according to claim 1, characterized in that: One end of the lamp housing (1) is provided with a light source, and radioactive stripes (11) are arranged around the light source.

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