CN209812175U - Pressing type energy-consumption-free multifunctional labor-saving screwdriver - Google Patents

Abstract

The utility model discloses a pressing type non-energy-consumption multifunctional labor-saving screwdriver, which comprises a gear set structure, a handle, a fixed inner shell and an outer shell, wherein the gear set structure comprises a gear fixed at one end of the handle, a transmission duplicate gear meshed with the gear, a duplicate gear, a cylindrical gear and a transmission gear, wherein the gear shaft is fixed in a chute and can only translate and rotate along the chute, the dual gear is provided with a leading-out shaft, the transmission gear is meshed with the cylindrical gear, and the leading-out shaft of the cylindrical gear is provided with a screwdriver mounting hole; when the handle is pressed, the gear is driven to rotate and then is transmitted to the transmission duplicate gear and the duplicate gear, a gear shaft of the duplicate gear translates to the transmission gear along the chute and is meshed with the transmission gear, and then the cylindrical gear is driven to rotate, so that the purpose of screwing the screw can be achieved, and only the mounting surface of a screw driver bit needs to be changed from screwing to unscrewing; the utility model discloses mainly used small-size maintenance, industrial field and use at home, have wide, the low energy consumption of application and low-cost characteristics.

Description

Pressing type energy-consumption-free multifunctional labor-saving screwdriver

Technical Field

The utility model belongs to mechanical device design field especially utilizes the laborsaving device of gear train and lever, concretely relates to press multi-functional laborsaving screwdriver of type no energy consumption.

Background

After the screw is produced, the screwdriver can be produced as soon as possible, and the figure of the screwdriver can be seen in daily life of the public. The screwdriver has different specifications in different fields, and is a common straight or cross screwdriver used in common occasions, but the rotation movement wastes time and labor; there are also electric screwdrivers used in situations of high workload and strength, and also in precision situations there are screwdrivers of high precision (usually small in volume), but they consume electric power and in some situations they do not require electric screwdrivers at all. The pressing type multifunctional labor-saving screwdriver without energy consumption utilizes a mechanical structure to change the traditional manual rotation or power consumption mode and realize the function of screwing screws. If the labor-saving screwdriver is pushed into the market, great economic benefits and environmental protection benefits can be brought to people and society.

There are known screwdrivers with reduced labor hour and production cost, for example, chinese patent application No. 201610219602.2 discloses "a working method of an automatic screwdriver with reduced labor hour and production cost", which still is a traditional manual rotation method, and only omits the step of replacing the screw in the mounting hole, and does not change the time-consuming and labor-consuming nature of the screwdriver. Like the multifunctional wheel type gun-shaped electric screwdriver disclosed in the Chinese patent application No. 201220153264.7, the electric screwdriver does greatly improve the working efficiency, but also brings energy consumption, and is provided with a plurality of structures such as a plurality of gun heads, a motor, a gear set and the like, so that the price and the cost are high, the electric screwdriver is not needed in many occasions, but the electric screwdriver is often selected for use because of convenience. Neither of the above two patents combines the saving of man-hour and energy, and each of them is deficient in one aspect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at replacing the electric screw driver that uses under traditional manual screwdriver and the partial condition, it can laborsaving and the realization of power saving twist the screw.

In order to achieve the above object, the utility model provides a multi-functional laborsaving screwdriver of pressing type no energy consumption, including gear train structure, handle, fixed inner shell and shell. A fixed inner shell is arranged in the outer shell, a gear set structure is arranged in the fixed inner shell, the gear set structure comprises a gear fixed at one end of the handle, a transmission duplicate gear meshed with the gear, a duplicate gear of which a gear shaft is fixed in the chute and can only perform translation and self rotation along the chute, a cylindrical gear with a leading-out shaft and a transmission gear meshed with the cylindrical gear, and a pinion of the duplicate gear is meshed with a gearwheel of the transmission duplicate gear; the pinion of the transmission duplicate gear is meshed with the gear.

When the duplicate gear rotates clockwise, the gear shaft translates to the transmission gear along the chute and causes the big gear of the duplicate gear to be meshed with the gear shaft; when the double gear rotates anticlockwise, the double gear is separated from the transmission gear.

And a screwdriver mounting port is arranged on the leading-out shaft of the cylindrical gear.

When the handle is pressed, the gear is driven to rotate, and then the transmission duplex gear meshed with the gear is driven to rotate, and the transmission duplex gear transmits the motion to the duplex gear through meshing; when the thrust is transmitted to the duplicate gear, the duplicate gear is subjected to the thrust, moves forward along the chute, is meshed with the transmission gear and further drives the cylindrical gear to rotate; completing the rotation of the screwdriver; after the hand is loosened, the duplicate gear leaves the original position due to stress and is separated from the transmission gear, so that the screw head shaft cannot rotate reversely.

Furthermore, two fixed inner shells can be spliced into a complete inner shell, and the fixed gear set shaft and the handle fulcrum are fixed with the outer shell through the fixing holes.

Furthermore, the number of the shells is two, and the shells are spliced into a complete shell through fixing pins and are used for fixing, convenient to operate and attractive.

Furthermore, the handle is provided with a return spring, and when the pressure applied to the handle is removed, the return spring contracts to drive the handle to return.

Furthermore, two screwdriver mounting openings are formed and are respectively mounted at two ends of the leading-out shaft of the cylindrical gear, so that screwing and unscrewing are realized.

Furthermore, the screwdriver mounting port is suitable for a multifunctional screwdriver edge on the market.

Furthermore, the leading-out shaft mounting hole of the cylindrical gear penetrates through the fixed inner shell and the fixed outer shell simultaneously.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly the utility model discloses do not consume any electric energy, utilize pure mechanical structure (gear train and lever structure) to accomplish the screw that has certain intensity and turn round tight and turn round the pine process. The whole process does not consume much energy and any electric energy.

The utility model discloses to the characteristics of the big material of electric screwdriver in many occasions is used for a short time, made our improvement, the electric screwdriver is used for a little big material in the great but not high occasion of intensity of work (like computer repair). The invention has small body shape, can realize high-efficiency screw twisting, and has great application value in the occasions.

The utility model discloses the cost is very cheap, and only the cost of gear train and shell, production man-hour is short and has good working effect simultaneously, compares and has great advantage in traditional screwdriver and electric screwdriver.

Drawings

Fig. 1 is an overall structure diagram of the present invention.

Fig. 2 is a structural diagram of the present invention with the outer casing removed.

Fig. 3 is a structural view of the housing of the present invention.

Fig. 4 is a connection diagram of the gear set structure of the present invention.

Fig. 5 is a structural diagram of the fixed inner shell of the present invention.

Fig. 6 is a structural diagram of the handle structure of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a structure includes gear train structure, handle 6, fixed inner shell 5 and shell 7, is provided with fixed inner shell 5 in the shell 7, is provided with the gear train structure in the fixed inner shell 5, the gear train structure includes gear 10 fixed at handle 6 one end, transmission duplicate gear 3 with gear 10 meshing, the gear shaft is fixed in spout 13 and can only carry out translation and self-rotation's duplicate gear 4 along spout 13, take out shaft's cylindrical gear 2, drive gear 1 with cylindrical gear 2 meshing, the little gear of duplicate gear 4 and the gear wheel meshing of transmission duplicate gear 3; the pinion of the drive duplex gear 3 meshes with the gear 10.

When the duplicate gear 4 rotates clockwise, the gear shaft translates to the transmission gear 1 along the chute 13 and causes the big gear of the duplicate gear 4 to be meshed with the big gear; when the double gear 4 rotates anticlockwise, the double gear 4 is separated from the transmission gear 1.

A screwdriver mounting hole 11 is mounted on the leading-out shaft of the cylindrical gear 2.

Furthermore, two fixed inner shells 5 can be spliced into a complete inner shell, and are used for fixing a gear set shaft and a fulcrum of the handle 6 and fixed with the outer shell 7 through a fixing hole 8.

Furthermore, the number of the shells 7 is two, and the shells are spliced into a complete shell through fixing pins 12, so that the shell is fixed, convenient to operate and attractive.

Further, the handle 6 is provided with a return spring 14, and when the pressure applied to the handle 6 is removed, the return spring 14 contracts to drive the handle to return.

Furthermore, two screwdriver mounting ports 11 are respectively mounted at two ends of the leading-out shaft of the cylindrical gear 2 to realize screwing and unscrewing.

Further, the screwdriver mounting port 11 is suitable for a multifunctional screwdriver blade on the market.

Further, the lead-out shaft mounting hole 9 of the spur gear 2 penetrates through the fixed inner case 5 and the outer case 7 at the same time.

The working process and principle are as follows: the screwdriver mounting openings 11 for mounting the screwdriver bits on different faces are selected according to the purpose of tightening and loosening. When in use, the handle 6 is pressed to drive the gear 10 to rotate, and further drive the transmission duplicate gear 3 meshed with the gear to rotate, and the transmission duplicate gear 3 transmits the motion to the duplicate gear 4 through meshing; when the thrust is transmitted to the duplicate gear 4, the duplicate gear 4 is thrust and moves forward along the chute 13 to be meshed with the transmission gear 1, and then the cylindrical gear 2 is driven to rotate; completing the rotation of the screwdriver; after the hand is loosened, the duplicate gear 4 is forced to leave the original position and is separated from the transmission gear 1, so that the screw head shaft cannot rotate reversely. Thereby ensuring that the screwdriver head always rotates in one direction to achieve the aim of screwing the screw in one direction.

Claims (7)

1. The pressing type multifunctional labor-saving screwdriver without energy consumption is characterized in that a fixed inner shell (5) is arranged in an outer shell (7), a gear set structure is arranged in the fixed inner shell (5), the gear set structure comprises a gear (10) fixed at one end of a handle (6), a transmission duplicate gear (3) meshed with the gear (10), a duplicate gear (4) of which a gear shaft is fixed in a sliding groove (13) and can only perform translation and self rotation along the sliding groove (13), a cylindrical gear (2) with a leading-out shaft and a transmission gear (1) meshed with the cylindrical gear (2), and a small gear of the duplicate gear (4) is meshed with a large gear of the transmission duplicate gear (3); the pinion of the transmission duplicate gear (3) is meshed with the gear (10);

when the duplicate gear (4) rotates clockwise, the gear shaft translates to the transmission gear (1) along the chute (13) and causes the big gear of the duplicate gear (4) to be meshed with the gear shaft; when the double gear (4) rotates anticlockwise, the double gear is separated from the transmission gear (1);

and a screwdriver mounting port (11) is mounted on the leading-out shaft of the cylindrical gear (2).

2. The multifunctional screw driver without energy consumption of pressing type according to claim 1 is characterized in that the two fixed inner housings (5) are spliced into a complete inner housing for fixing the gear set shaft and the fulcrum of the handle (6) and fixing the gear set shaft and the outer housing (7) through the fixing hole (8).

3. The multifunctional force-saving screwdriver of claim 1, wherein the number of the shells (7) is two, and the two shells are spliced into a complete shell by the fixing pins (12) for fixing, convenient operation and beauty.

4. The multifunctional screwdriver of claim 1, wherein the handle (6) is provided with a return spring (14), and when the pressure applied to the handle (6) is removed, the return spring (14) contracts to drive the handle to return.

5. The multifunctional force-saving screw driver with pressing type and no energy consumption according to claim 1 is characterized in that two screw driver mounting ports (11) are respectively arranged at two ends of the leading-out shaft of the cylindrical gear (2) to realize screwing and unscrewing.

6. The multifunctional screwdriver according to claim 5, wherein said screwdriver mounting hole (11) is suitable for use with commercially available multifunctional screwdriver bits.

7. The multifunctional force-saving screw driver of claim 1, wherein the leading-out shaft mounting hole (9) of the cylindrical gear (2) passes through the fixed inner shell (5) and the outer shell (7) simultaneously.