CN104767540A - Telescopic hand crank charging device for camping radio - Google Patents

Abstract

The invention discloses a telescopic hand-operated charging device of a camping radio set. The charging device comprises a control circuit board assembly composed of a radio set control circuit mainboard, a charging battery and a charging battery box cover. The charging device is characterized by also comprising a telescopic hand-operated power generator and a mobile phone charging interface assembly portion. The telescopic hand-operated power generator is placed in the lower rear portion of the camping radio set, the control circuit board assembly is placed in the upper front portion of the radio set, and a mobile phone charging portion is placed at the bottom of the radio set. A hand-operated power generation function is provided, a four-level gear acceleration mechanism of the transmission ratio of 3.5 is arranged by fully utilizing the space, the charging efficiency is effectively improved, the charging device also has the advantages of reliable work and convenient use and maintenance, the problem that mobile equipment as a mobile phone cannot be used normally due to insufficient power in the camping process can be solved, and it is ensured that a camper can keep in touch with the external at any time in the camping process.

Description

Telescopic hand crank charging device for camping radio

technical field

The invention relates to a radio, in particular to a telescopic hand-crank charging device for a camping radio. The invention can be used to ensure that campers can always keep in touch with the outside world under complex living conditions. A retractable hand-crank charging device is installed in the radio, and the camper can use the radio and mobile phone under any conditions to generate electricity through the hand-crank. The power of the mobile device is kept in good condition, keeping the camper in touch with the outside world, so that the life safety of the camper is guaranteed.

Background technique

Camping was originally a special project of military or physical training, mainly used to exercise members' physique and will. But foreign countries have begun to introduce camping into people's daily education and leisure sports many years ago. In recent years, many domestic camping enthusiasts have also regarded it as an avant-garde way of outdoor tourism, and now it has been accepted by more and more people and boldly tried it. With people getting tired of urban life and the rapid popularization of the Internet, more and more people use their leisure time to gather together in the name of "donkey friends" for outdoor camping survival. Camping equipment has also developed. At the same time, with the increasingly powerful functions of mobile phones and other digital devices, mobile phones and other digital devices have become inseparable from people's lives. Neutralize the contact with the outside world. Once in a dangerous camping environment, you cannot call for help in time and an accident will occur.

The present invention provides a telescopic hand-cranked charging device for camping radios, which can use USB to supply power to your mobile equipment. The power supply method is hand-cranked power generation. Charging mobile devices makes camping more secure. Retrieve by the inventor, also do not have a kind of radio specially designed for camping to possess retractable hand-cranked charging device so far on the market.

Contents of the invention

The purpose of the present invention is to solve the existing problems in the prior art, overcome the shortcomings of the existing radios that are not equipped with charging equipment or have incomplete charging functions, and provide a telescopic hand-cranked charging device for camping radios. The device has the function of manual power generation, and makes full use of the space to set up a four-stage gear speed-up mechanism with a transmission ratio of 3.5 (the number of teeth of the large gear is 42, and the number of small gears is 12). This mechanism effectively improves the charging efficiency and at the same time It has the advantages of reliable work, convenient use and maintenance, and can prevent the problem that mobile devices such as mobile phones cannot be used normally due to insufficient power during camping, ensuring that campers can keep in touch with the outside world at any time during camping, preventing Accidents occur due to being unable to call for help in a dangerous camping environment, which reduces the risk factor of the camping journey. The device has the advantages of small size, light weight, high efficiency, stability and reliability.

In order to solve the above technical problems, the present invention is achieved in this way.

The telescopic hand-cranked charging device of the camping radio includes a control circuit board assembly composed of a radio control circuit main board 1, a rechargeable battery 13, and a rechargeable battery box cover 32, and is characterized in that it also includes a telescopic hand-cranked power generation device and a mobile As for the charging interface assembly, the retractable hand-cranked power generator is located at the lower rear part of the camping radio, the control circuit board assembly is located at the upper front part of the radio, and the mobile phone charging part is located at the bottom of the radio.

The telescopic hand-operated power generation device includes: the rear housing of the radio 2, the hand-operated arm handle placement hole 3, the main shaft gear of the generator 4, the outer gear shaft limit plate 5, the hand-operated arm shaft 6, the hand-operated arm 7, Self-tapping screw 8 connecting the handle, hand rocker handle 9, generator main shaft 14, secondary gear shaft inner large gear 15, secondary gear shaft external large gear 16, brass spacer 17, secondary gear shaft 18, primary Inner large gear of first stage gear shaft 19, outer large gear of first stage gear shaft 20, hand rocker transmission shaft 21, first stage gear shaft 22, brass reinforced sleeve 23, lubricating grease 24, radial positioning sleeve of first stage gear shaft 25 , secondary gear shaft clamping plate 26, fixed pin shaft 28, inner gear shaft limiting plate 29, miniature generator 31, wherein utilize the housing of radio to form gear box body, and mainly be provided with in radio rear housing 2 The hand rocker handle is placed in the hole 3, the hand rocker handle 9 is connected with the hand rocker 7 through the self-tapping screw 8 connecting the handle, and can rotate freely on the hand rocker 7, and the hand rocker 7 is passed through the hand rocker. Rotating shaft 6 and hand crank transmission shaft 21 drive the first-stage gear shaft 22 to rotate, and the first-stage gear shaft 22 drives the first-stage gear shaft outer large gear 20 to rotate through fixed pin shaft 28. The outer large gear 16 of the secondary gear shaft meshes to realize a first-stage transmission with a transmission ratio of 3.5. The external large gear 16 of the secondary gear shaft is a double gear, and when it rotates, the large gear part on it is assembled with the primary gear The first-stage gear shaft inner bull gear 19 on the shaft 22 engages and drives it to rotate, realizing a transmission ratio of 3.5. The gear part meshes with the inner large gear 15 of the secondary gear shaft 18 assembled on the secondary gear shaft 18 and drives it to rotate, realizing a three-stage transmission with a transmission ratio of 3.5, and the large inner gear 15 of the secondary gear shaft is a double gear. When it rotates, the large gear part on it meshes with the generator main shaft gear 4 assembled on the generator main shaft 14 and drives it to rotate, realizing a four-stage transmission with a transmission ratio of 3.5, and the high-speed rotation of the motor main shaft 14 makes the micro generator 31 to start generating electricity.

By arranging a brass spacer 17 between the large gear 15 inside the secondary gear shaft and the large gear 16 outside the secondary gear shaft, the two gears do not interfere with each other and maintain different rotational speeds during rotation.

All gears are made of nylon and manufactured by mold technology. The brass spacer 17 is made of brass sheet stamping, making full use of the advantages of the small friction coefficient of brass and nylon. The gear shaft radial positioning sleeve 25 and each gear are lubricated with grease 24 to further improve the life of the gear.

The structure of the mobile phone charging interface assembly includes: USB interface 10, connecting screw column 11, mobile phone charging device jack 12, micro-generator circuit board 27, USB charging connection 30, connect the micro-generator circuit board 27 to the radio control circuit through wires On the main board 8, the USB charging cable 30 is inserted into the mobile phone charging device jack 12, and mobile devices such as mobile phones are charged through the USB interface 10 on the USB charging cable 30, and the mobile phone charging interface assembly is connected with the radio through the connecting screw column 11.

The present invention adopts a four-stage gear speed-up transmission with a transmission ratio between 3 and 4 in the speed-up gearbox, wherein the gears made of nylon materials can fully reduce the weight of the radio, and there are two types of gears: Duplex gears and pinions can fully reduce the cost of mold preparation, and the gears are fixed on the two gear shafts and the micro-generator shaft, realizing four-stage gear transmission in a very small space; The spacer is used to prevent the mutual interference between the gears. The spacer is made of brass stamping and makes full use of the advantages of the small friction coefficient of the brass and nylon pair; at the same time, grease is used between the gear shaft and the gear, and between the gear and the gear. Lubricating further increases the life of the gears, improving the stability and reliability of the device.

In the present invention, the micro-generator is placed in the middle and lower part of the radio casing, so that the structure of the radio is compact, and the use of the hand-operated device is convenient, so that the micro-generator can work safely and reliably. Secure the gear shaft to the housing of the radio.

The present invention adopts a detachable structure for the USB connection, and the connection can be removed when using the radio at ordinary times, so as to ensure that the space used by the radio is small, and the interface part of the connection adopts a USB interface to charge all mobile phones. At the same time, other power sources can be used to charge the rechargeable battery that comes with the radio.

The self-contained battery of the radio of the present invention is a rechargeable battery, and is equipped with two rechargeable batteries, so that the electric power generated by the manual power generation can be saved in time, and the radio can be kept working normally under any conditions. Charging the battery of the mobile phone by hand: if the hand is charged for 5 minutes (according to the hand speed of 40r/min); it can maintain the mobile phone talk time: 5-10 minutes, and maintain the mobile phone standby time: 1-2 hours.

In the present invention, a screw connection mode is added to the part of the hand-operated power generating device, which can improve the connection strength of this part, and a commonly used plastic part hook connection mode is adopted in other positions.

Compared with the prior art, the beneficial effect of the present invention is.

1. The invention has a manual power generation method, which can meet the charging requirements of campers (with normal physical conditions) for radios and other mobile devices under any conditions.

2. Through the reasonable design of the gear box, the device makes full use of the space of the radio and sets up a four-stage gear speed-up mechanism with a transmission ratio of 3.5. The gear box is formed by using the shell of the radio, and the spacer is set between the gears. , in the case of only two transmission shafts, the four-stage transmission is achieved, so that the gears do not interfere with each other during the rotation process. The gears are all made of nylon and made of molds. Therefore, the structure of the gearbox is small in size and light in weight. and efficient advantages.

3. The spacer of the device is made of brass sheet stamping, making full use of the advantages of the small friction coefficient of brass and nylon pairs, and at the same time lubricating with grease between the gear shaft and the gear, and between the gear and the gear to further improve the life of the gear , improving the stability and reliability of the device.

4. Make reasonable use of the space, place the lighting and the charging position of the mobile phone on the top and bottom of the radio respectively, so that the camper can feel very convenient during use.

5. The overall size of the device is less than 130x60x30mm, which is convenient for campers to carry.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 The side view of the retractable hand charging device.

Fig. 2 The full sectional view of the retractable hand charging device.

Figure 3 Partial cross-sectional view of the retractable hand charging device.

Figure 4. The full sectional view of the primary gear shaft of the telescopic hand charging device.

Fig. 5 Axis side view of the retractable hand charging device.

Figure 6 Rear view of the retractable hand-cranked charging device.

Serial number in the picture: 1-main board of radio control circuit, 2-rear housing of radio, 3-hole for placing handle of hand rocker arm, 4-generator main shaft gear, 5-limiting plate of outer gear shaft, 6-hand shaft of hand rocker arm, 7-Hand arm, 8-Self-tapping screw connecting handle, 9-Handle handle, 10-USB interface, 11-Connecting screw column, 12-Mobile phone charging device jack, 13-Rechargeable battery, 14-Generator Main shaft, 15-inner large gear of secondary gear shaft, 16-outer large gear of secondary gear shaft, 17-brass spacer, 18-secondary gear shaft, 19-inner large gear of primary gear shaft, 20-first stage Outer gear of gear shaft, 21-Hand drive shaft, 22-Primary gear shaft, 23-Brass reinforced sleeve, 24-Grease, 25-Radial positioning sleeve of primary gear shaft, 26-Secondary gear Shaft card board, 27-miniature generator circuit board, 28-fixed pin shaft, 29-inner gear shaft limit plate, 30-USB charging wiring, 31-micro generator, 32-rechargeable battery box cover.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the specific structure and usage of the present invention will be further described in detail below in conjunction with accompanying drawings 1-6.

The telescopic hand-crank charging device of this camping radio includes: telescopic hand-crank power generation device, mobile phone charging interface assembly, and control circuit board assembly. These three parts are designed in the form of components, which are convenient for production, assembly, Adjustments and repairs. The retractable hand generator is the largest component, and the other two parts are its auxiliary parts. The retractable hand crank generator is located at the lower rear part of the camping radio, the control circuit board assembly is located at the upper front part of the radio, and the mobile phone charging part is located at the bottom of the radio. The device realizes the charging of the rechargeable battery of the radio by means of a hand generator in a camping environment, and can also charge mobile devices such as mobile phones. The structure of the transmission gearbox has the advantages of small size, light weight and high efficiency. . the

The telescopic hand-operated power generation device includes: the rear shell of the radio 2, the hole for the handle of the hand-operated arm 3, the main shaft gear of the generator 4, the limit plate of the outer gear shaft 5, the rotating shaft of the hand-operated arm 6, the hand-operated arm 7, and the connection handle Self-tapping screw 8, hand rocker handle 9, generator main shaft 14, secondary gear shaft inner large gear 15, secondary gear shaft external large gear 16, brass spacer 17, secondary gear shaft 18, primary gear shaft Inner large gear 19, first-stage gear shaft outer large gear 20, hand rocker arm drive shaft 21, first-stage gear shaft 22, brass reinforced sleeve 23, grease 24, first-stage gear shaft radial positioning sleeve 25, second-stage Gear shaft clamping plate 26, fixed pin shaft 28, inner gear shaft limiting plate 29, micro generator 31. Make full use of the housing of the radio to form a gear box, and mainly set the hand rocker handle placement hole 3 in the radio rear housing 2. When the device is not in use, the hand rocker 7 can be used as the hand rocker arm transmission shaft 21 is to place the rocker arm handle 9 into the rocker arm handle placement hole 3 after the rotation axis rotates 180°, which realizes the function of rotating and telescopically reducing the volume of the device and making it convenient for campers to carry it; when using the device for charging , after rotating the hand rocker arm 7, hold the hand rocker arm handle 9 (the handle is connected with the hand rocker arm 7 through the self-tapping screw 8 connected to the handle, and can freely rotate on the hand rocker arm 7 ), and rotate the rocker arm 7, the rocker arm 7 drives the first-stage gear shaft 22 to rotate through the hand-rocker shaft 6 and the hand-rocker transmission shaft 21, and the first-stage gear shaft 22 drives the outer side of the first-stage gear shaft through the fixed pin shaft 28 The large gear 20 rotates, and this gear meshes with the secondary gear shaft outer large gear 16 assembled on the secondary gear shaft 18 to realize a primary transmission with a transmission ratio of 3.5; the secondary gear shaft external large gear 16 is a duplex gear , when it rotates, the large gear part on it meshes with the primary gear shaft inner large gear 19 assembled on the primary gear shaft 22 and drives it to rotate, realizing a two-stage transmission with a transmission ratio of 3.5; the primary gear shaft The inner bull gear 19 is a duplex gear, and when it rotates, the bull gear part on it meshes with the inner bull gear 15 of the secondary gear shaft 18 assembled on the secondary gear shaft 18 and drives it to rotate, realizing a transmission ratio of 3.5 Three-stage transmission; the inner large gear 15 of the second-stage gear shaft is a double gear, and when it rotates, the large gear part on it meshes with the generator main shaft gear 4 assembled on the generator main shaft 14 and drives it to rotate, realizing the transmission Ratio is a four-stage transmission of 3.5; the high-speed rotation of the motor main shaft 14 makes the micro-generator 31 start to generate electricity. By setting the brass spacer 17 between the inner large gear 15 of the secondary gear shaft and the large outer gear 16 of the secondary gear shaft, the two gears do not interfere with each other during the rotation and maintain their respective different speeds; all gears adopt Nylon is used as the material and is prepared by mold technology. The spacer 17 is made of brass sheet punching, making full use of the advantages of the small friction coefficient of the brass and nylon pair. 25. Lubricating grease 24 is used between each gear to further improve the life of the gear.

The structure of the mobile phone charging interface assembly includes: a USB interface 10, a connecting screw column 11, a mobile phone charging device jack 12, a micro generator circuit board 27, and a USB charging connection 30. The micro-generator circuit board 27 is connected on the radio control circuit main board 8 by wire; The USB charging connection 30 is inserted into the mobile phone charging device jack 12, and mobile devices such as mobile phones can be charged by the USB interface 10 on the USB charging connection 30. The mobile phone charging interface assembly is connected with the radio by means of screw connection through the connecting screw post 11 .

The structure of the control circuit board assembly includes: a radio control circuit main board 1 , a rechargeable battery 13 , and a rechargeable battery box cover 32 . This component can well realize the control of the charging mode of the hand crank, since the specific circuit is a ready-made technology, it will not be described in detail here.

These three parts are designed in the form of components, as shown in Figure 1-Figure 6, which constitutes a complete telescopic hand-cranked charging device for camping radios.

When in use, when the power of the radio is low, rotate the rocker arm 180° and the rocker arm is in the unfolded state. At this time, hold the handle on the rocker arm and rotate the rocker arm to drive the micro generator to generate electricity and charge the radio; When the mobile device is out of power, you can connect one end of the USB cable to the corresponding interface of the radio, and at the same time connect the USB interface to the mobile device, and use the manual method to charge the mobile device; After the battery is full, it means that the charging process is over.

Claims (5)

1. A telescopic hand-operated charging device for a camping radio, including a control circuit board assembly composed of a radio control circuit main board (1), a rechargeable battery (13), and a rechargeable battery box cover (32). It includes a retractable hand generator and a mobile phone charging interface assembly, wherein the retractable hand generator is located at the lower rear part of the camping radio, the control circuit board assembly is located at the upper front part of the radio, and the mobile phone charging part is located at the bottom of the radio. 2. The telescopic hand-operated charging device for camping radio according to claim 1, characterized in that: the telescopic hand-operated power generating device comprises: the rear housing (2) of the radio, the hole for placing the handle of the hand-operated arm ( 3), generator main shaft gear (4), outer gear shaft limit plate (5), hand rocker shaft (6), hand rocker arm (7), self-tapping screw connecting the handle (8), hand rocker handle (9), generator main shaft (14), secondary gear shaft inner large gear (15), secondary gear shaft outer large gear (16), brass spacer (17), secondary gear shaft (18), first Inner large gear of first stage gear shaft (19), outer large gear of first stage gear shaft (20), hand crank transmission shaft (21), first stage gear shaft (22), brass reinforced sleeve (23), lubricating grease ( 24), the radial positioning sleeve of the primary gear shaft (25), the clamping plate of the secondary gear shaft (26), the fixed pin shaft (28), the inner gear shaft limiting plate (29), and the micro generator (31), among which Utilize the housing of the radio to form the gear box body, and mainly be provided with the rocker arm handle placement hole (3) in the radio rear housing (2), the hand rocker handle (9) is connected to the self-tapping screw (8) of the handle ) is connected with the hand rocker arm (7), and can freely rotate on the hand rocker arm (7), the hand rocker arm 7 drives a first-stage The gear shaft (22) rotates, and the first-stage gear shaft (22) drives the outer large gear (20) of the first-stage gear shaft to rotate through the fixed pin shaft (28). The large gear (16) outside the gear shaft meshes to form a first-stage transmission with a transmission ratio of 3.5. The large gear (16) outside the secondary gear shaft is a double gear. The inner large gear (19) of the first-stage gear shaft on the first-stage gear shaft (22) meshes and drives it to rotate, forming a two-stage transmission with a transmission ratio of 3.5. The inner large gear (19) of the first-stage gear shaft is a duplex gear. When it rotates, the large gear part on it meshes with the secondary gear shaft inner large gear (15) assembled on the secondary gear shaft (18) and drives it to rotate, forming a three-stage transmission with a transmission ratio of 3.5. The large gear (15) inside the stage gear shaft is a duplex gear. When it rotates, the large gear part on it meshes with the generator main shaft gear (4) assembled on the generator main shaft (14) and drives it to rotate, forming a The transmission ratio is a four-stage transmission of 3.5, and the motor main shaft (14) rotates at high speed to drive the micro-generator (31) to generate electricity. 3. The telescopic hand-operated charging device for camping radio according to claim 2, characterized in that: the large gear inside the secondary gear shaft (15) and the large gear outside the secondary gear shaft (16) are arranged There are brass spacers (17). 4. The telescopic hand charging device for camping radio according to claim 2, characterized in that: all the gears are made of nylon material, and at the same time, the gear shaft (22) of the first stage and the radial positioning sleeve of the gear shaft of the first stage (25), be coated with lubricating grease 24 between each gear and lubricate. 5. The telescopic hand-operated charging device of the camping type radio according to claim 1, characterized in that: the mobile phone charging interface assembly comprises: USB interface (10), connecting screw column (11), mobile phone charging device jack (12), micro-generator circuit board (27), USB charging wiring (30), the micro-generator circuit board (27) is connected on the radio control circuit main board (8) by wire, and USB charging wiring (30) is inserted The mobile phone charging device jack (12) charges mobile devices such as mobile phones through the USB interface (10) on the USB charging cable (30), and the mobile phone charging interface assembly is connected with the radio through the connecting screw column (11).