CN205310136U

CN205310136U - Laborsaving screwdriver with higher speed

Info

Publication number: CN205310136U
Application number: CN201521026205.3U
Authority: CN
Inventors: 张玲聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-12
Filing date: 2015-12-12
Publication date: 2016-06-15
Anticipated expiration: 2025-12-12

Abstract

The utility model relates to a laborsaving screwdriver with higher speed, the instrument of belong to the fastening, dismantling. The utility model discloses a: screw handle of a knife, screw cutter arbor, screwdrivers blade, characterized by: still include: laborsaving accelerator, laborsaving accelerator include box, case lid, be equipped with the connecting hole with planetary gear mechanism on box and the case lid respectively for connection screw handle of a knife and screw cutter arbor are equipped with planetary gear mechanism in the box. The utility model discloses a best transmission scheme of preferred single planetary gear mechanism, the mounting is the ring gear promptly, be the driving part when the planet carrier, and the speed that the sun gear can be exported during for the follower is the biggest, has reached accelerated effect, works as the sun gear and is the driving part, and when the planet carrier was the follower, the moment of torsion of output was the biggest, had reached laborsaving effect. This scheme not only can obtain the maximum transmission ratio and can obtain maximum torque, and the structure is changeed in the realization simultaneously.

Description

Laborsaving acceleration screwdriver

Technical field

This utility model relates to a kind of laborsaving acceleration screwdriver, belongs to the instrument of fastening, dismounting.

Background technology

Always running into certain situation when using screwdriver, screw is too tightly twisted motionless or strength too primary screw is stubborn tight, and there have stubborn long screw to require time for be longer, so that a few thing cannot complete or inefficiency.

At present utilize ratchet mechanism labour-saving screwdriver, and the electric screw driver of the turn of the screw speed can be improved. But utilize the laborsaving limitation of Laborsaving screwdriver of ratchet mechanism and the speed of the turn of the screw can not be improved; Electric screw driver volume is big, heavy, not readily portable, once not have electricity just cannot use and price is higher. Due to these limiting factors so that product on the market all can not only economy comprehensively solve not only can be laborsaving but also can labour-saving problem.

Utility model content

The purpose of this utility model is in that to provide one to save time, laborsaving, laborsaving acceleration screwdriver that work efficiency is high.

This utility model is achieved through the following technical solutions:

Laborsaving acceleration screwdriver, including: screwdriver handle, screwdriver rod, driver bit, it is characterized in that: also include: laborsaving accelerator, laborsaving accelerator includes casing, case lid, described casing and case lid are respectively equipped with the hole being connected with planetary gears, for connecting screw handle of a knife and screwdriver rod, in casing, are provided with planetary gears.

Further: planetary gears includes: gear ring, planet carrier, sun gear, described planet carrier top and bottom centre position are respectively equipped with circular ring slot, circular ring slot is used for installing the assembly being made up of ball and retainer, it is respectively equipped with boss in the middle part of annular groove bottom planet carrier top and sun gear, boss has the hole for connecting screw handle of a knife or screwdriver rod.

Having the draw-in groove of fixed gear ring on described gear ring outer, box inside wall is provided with projection, and protruding vertical has internal thread hole.

Described casing is connected by groove with case lid.

Described casing is provided with handle.

Setting handle of a knife joint on described screwdriver handle, screwdriver rod one end is provided with arbor adapter, and the other end is provided with connecting hole.

This utility model best transmission scheme by preferred simple planetary arrangement, namely fixture is gear ring, when planet carrier is driving link, the speed that can export when sun gear is driven member is maximum, reach the effect accelerated, when sun gear is driving link, and planet carrier is driven member, the moment of torsion of output is maximum, has reached labour-saving effect. This scheme can not only obtain maximum transmission ratio and can obtain peak torque, and structure is more easily implemented simultaneously.

Laborsaving accelerator coordinates electric screw driver to use, it is possible to strengthens the function of electric screw driver, namely can export faster speed and bigger torque, so that use the electric screw driver of smaller power to reach the function of relatively high power screwdriver.

Accompanying drawing explanation

Fig. 1 is this utility model overall structure schematic diagram;

Fig. 2 is this utility model explosive view;

Fig. 3 is screwdriver handle schematic diagram;

Fig. 4 is case lid schematic diagram;

Fig. 5 is the assembly schematic diagram being made up of ball and retainer;

Fig. 6 is planet carrier schematical top view;

Fig. 7 is planet carrier bottom schematic view;

Fig. 8 is sun gear bottom schematic view;

Fig. 9 is sun gear schematical top view;

Figure 10 is gear ring schematic diagram;

Figure 11 is casing schematic diagram;

Figure 12 is screwdriver rod schematic diagram;

Figure 13 is electric screw driver and laborsaving accelerator joint schematic diagram;

Figure 14 is laborsaving acceleration screwdriver inside top schematic diagram after removal casing and case lid;

Figure 15 is laborsaving acceleration screwdriver interior bottom portion schematic diagram after removal casing and case lid.

Detailed description of the invention

The laborsaving accelerator of this utility model adopts simple planetary arrangement, and parts are in Table 1

Table 1 simple planetary arrangement transmission scheme is summed up

Illustrate: α is the ratio of the gear ring number of teeth and the sun gear number of teeth.

Shown in Fig. 3, screwdriver handle 1 top is provided with outer-hexagonal prismatic joints 14 for connecting laborsaving accelerator 2, it is simple to dismounting.

Shown in Fig. 4, case lid 6 centre position is provided with hole 15 for the boss 18 through planet carrier 8, is used for installing screw 5 in position, outer perforate 16 and uses.

Shown in Fig. 5, the assembly 7 being made up of ball and retainer is used for being installed between planet carrier 8 and case lid 6, between planet carrier 8 and sun gear 11, and sun gear 11 and between bottom casing 13, the frictional force produced when being used for reducing planetary gear pressurized so that laborsaving accelerator 2 runs more smooth.

Shown in Fig. 6, planet carrier 8 crown center position is provided with circular ring slot 17, is used for installing the assembly 7 being made up of ball and retainer, is provided with boss 18, has inner hexagonal hole 19 on boss 18, for connecting screw handle of a knife 1 or screwdriver rod 3 in the middle part of circular ring slot.

Shown in Fig. 7, bottom planet carrier 8, centre position is provided with circular ring slot 20, is used for installing the assembly 7 being made up of ball and retainer.

Shown in Fig. 8, bottom sun gear 11, centre position is provided with circular ring slot 21, is used for installing the assembly 7 being made up of ball and retainer, is provided with boss 23, has inner hexagonal hole 22 on boss 23, for connecting screw knife bar 3 or screwdriver handle 1 in the middle part of circular ring slot.

Shown in Fig. 9, sun gear 11 crown center position is provided with annular groove 24, is used for installing the assembly 7 being made up of ball and retainer.

Shown in Figure 10, gear ring 12 outer has draw-in groove 25 and is used for fixing gear ring 12.

Shown in Figure 11, hole 29 is had for the boss 23 through sun gear 11 in the middle part of casing 13 bottom surface, medial wall is provided with protruding 27 and is used for fixing gear ring 12, protruding 27 verticals have internal thread hole 26 for installing screw 5, it is provided with groove 28 for connecting case lid 6 at inwall, it is provided with handle 30, in use by fixing laborsaving accelerator 2 with being held by handle 30 at casing 13 outer wall.

Shown in Figure 12, screwdriver rod 3 one end is provided with hexagonal prismoid joint 31, is used for connecting laborsaving accelerator 2, and the other end is provided with inner hexagonal hole 32 for connecting screw cutter head 4.

Shown in Figure 13, hexagonal prismoid 33 is used for connecting laborsaving accelerator 2 and electric screw driver.

Using method:

1. to obtain the operational approach of labor-saving effect: be inserted into by screwdriver handle 1 in the hole 22 of laborsaving accelerator 2, screwdriver rod 3 is inserted in the hole 19 of laborsaving accelerator 2, driver bit 4 inserts in the connecting hole 32 of screwdriver rod 3, one is held by laborsaving accelerator handle 30, another hands turns screwdriver handle 1, obtains the turn of the screw labour-saving effect.

2. to obtain the operational approach of acceleration effect: be inserted into by screwdriver handle 1 in the hole 19 of laborsaving accelerator 2, screwdriver rod 3 is inserted in the hole 22 of laborsaving accelerator 2, driver bit 4 inserts in the connecting hole 32 of screwdriver rod 3, one is held by laborsaving accelerator handle 30, another hands turns screwdriver handle 1, obtains the effect quickly turning screw;

3. use electric screw driver and laborsaving accelerator 2 with the use of operational approach: be connected on hole 19 or the hole 22 of laborsaving accelerator 2 by connector 33 one end, the other end is connected on electric screw driver, screwdriver rod 3 is connected on another hole of laborsaving accelerator, driver bit inserts in the connecting hole 32 of screwdriver handle 3, one is held by laborsaving accelerator handle 30, and another is held by electric screw driver and is operated.

Claims

1. laborsaving acceleration screwdriver, including: screwdriver handle (1), screwdriver rod (3), driver bit (4), it is characterized in that: also include: laborsaving accelerator (2), described laborsaving accelerator (2) including: casing (13), case lid (6), being respectively equipped with, on described casing (13) and case lid (6), the hole being connected with planetary gears, for connecting screw handle of a knife (1) and screwdriver rod (3), casing is provided with planetary gears in (13).

2. laborsaving acceleration screwdriver according to claim 1, it is characterized in that: planetary gears includes: gear ring (12), planet carrier (8), sun gear (11), described planet carrier (8) top and bottom centre position are respectively equipped with circular ring slot, circular ring slot is used for installing the assembly (7) being made up of ball and retainer, it is respectively equipped with boss in the middle part of the annular groove of planet carrier (8) top and sun gear (11) bottom, boss has the hole for connecting screw handle of a knife or screwdriver rod.

3. laborsaving acceleration screwdriver according to claim 2, is characterized in that: have the draw-in groove of fixed gear ring on gear ring (12) outer, and casing (13) medial wall is provided with projection, and protruding vertical has internal thread hole.

4. laborsaving acceleration screwdriver according to claim 1, casing (13) is connected by groove with case lid (6).

5. the laborsaving acceleration screwdriver according to claim 1 or 4, is characterized in that: casing (13) is provided with handle.

6. laborsaving acceleration screwdriver according to claim 1, is characterized in that: screwdriver handle sets handle of a knife joint on (1).

7. laborsaving acceleration screwdriver according to claim 1, is characterized in that: screwdriver rod (3) one end is provided with arbor adapter, and the other end is provided with connecting hole.

8. laborsaving acceleration screwdriver according to claim 2, is characterized in that: the hole for connecting screw handle of a knife or screwdriver rod is inner hexagonal hole.