CN211220463U

CN211220463U - Hand-pressing type rotary screwdriver

Info

Publication number: CN211220463U
Application number: CN201921428525.XU
Authority: CN
Inventors: 丁晨鑫
Original assignee: Nanjing Institute of Mechatronic Technology
Current assignee: Nanjing Institute of Mechatronic Technology
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-08-11
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a rotatory screwdriver of hand, concretely relates to daily life field, the electric iron comprises a handle, the bottom outside of handle is connected with the protecting crust, and the inside position department that the bottom of handle is located the protecting crust is connected with first pivot, the outside of first pivot is located the inside position department of protecting crust and is connected with first gear, one side of first gear is connected with the second gear, the middle part of second gear is connected with the second pivot, the bottom of protecting crust is located the below position department of first gear and second gear and is connected with the mount, the outside position department that the bottom of mount is located the second pivot is connected with the set casing, the bottom outside of second pivot is connected with the conversion head, the bottom of conversion head is provided with cross edge of a knife. The utility model provides high user's operating efficiency has alleviateed user's working strength, accomplishes labour saving and time saving, and has made things convenient for the switching of screwdriver edge of a knife.

Description

Hand-pressing type rotary screwdriver

Technical Field

The utility model relates to a daily life field, more specifically says, the utility model relates to a hand rotary screwdriver.

Background

A screwdriver is a tool used to turn a screw into place and typically has a thin wedge shaped head that is insertable into a slot or recess in the head of the screw.

Through retrieval, the chinese utility model discloses a screwdriver that screwdriver head is telescopic (grant publication No. CN205799339U), the screwdriver includes screwdriver handle, screwdriver main rod and screwdriver head, one end of screwdriver main rod is inserted in the screwdriver handle, the other end is connected with the screwdriver head, the screwdriver head includes first screwdriver head and second screwdriver head, first clamping groove and second clamping groove are arranged in the direction that the first screwdriver head is perpendicular to the second screwdriver head, the screwdriver main rod is provided with an accommodating cavity near one end of screwdriver head, one end of second screwdriver head is inserted in the accommodating cavity, one end of second screwdriver head is provided with a first connecting rod and a second connecting rod near one end of screwdriver main rod, and is connected to the screwdriver main rod through a first spring and a second spring respectively; the second screwdriver head is controlled to stretch and retract through the first spring and the second spring.

However, the screwdriver is inconvenient to improve the operating efficiency of a user when in use, cannot save time and labor, and is inconvenient to switch the screwdriver edge.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a hand rotary screwdriver has improved user's operating efficiency, has alleviateed user's working strength, accomplishes labour saving and time saving, and has made things convenient for the switching of screwdriver edge of a knife.

In order to achieve the above object, the utility model provides a following technical scheme: a hand-press type rotary screwdriver comprises a handle, wherein a protective shell is connected to the outer side of the bottom of the handle, a first rotating shaft is connected to the position, located inside the protective shell, of the bottom of the handle, a first gear is connected to the position, located inside the protective shell, of the outer portion of the first rotating shaft, a second gear is connected to one side of the first gear, a second rotating shaft is connected to the middle of the second gear, a fixing frame is connected to the position, located below the first gear and the second gear, of the bottom of the protective shell, a fixing shell is connected to the position, located outside the second rotating shaft, of the bottom of the fixing frame, a conversion head is connected to the outer side of the bottom of the second rotating shaft, a cross-shaped knife edge is arranged at the bottom of the conversion head, a straight-shaped knife edge is arranged inside the second rotating shaft, and clamping blocks are arranged on the two outer walls of, the inside of the second rotating shaft corresponding to the inner side of the clamping block is provided with a fixing groove, and one end of the clamping block is located inside the fixing groove and is connected with a spring.

In a preferred embodiment, the top of the fixing frame is provided with a bearing seat at a position outside the bottom end of the first rotating shaft.

In a preferred embodiment, the first gear and the second gear are connected through tooth-groove meshing, and the outer diameter of the first gear is 3 times of that of the second gear.

In a preferred embodiment, a groove is arranged in the interior of the conversion head corresponding to the bottom outer side position of the second rotating shaft, and the inner diameter of the groove is larger than the bottom outer diameter of the second rotating shaft.

In a preferred embodiment, two outer walls of the conversion head are provided with limiting holes at positions corresponding to the outer portions of the clamping blocks.

In a preferred embodiment, the depth of the fixing groove is greater than the length of the latch, and the connection between the latch and the spring is welded.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up first gear and second gear, when using, the user moves the handle through twisting, the handle drives first pivot and rotates, and then make the first gear drive the second gear rotation that the meshing is connected, drive the second pivot and rotate when the second gear rotates, and then dismantle or install the screw through the edge of a knife of second pivot bottom, because the external diameter of first gear is the multiple of second gear external diameter, can drive the second gear rotation three weeks when the first gear rotates one week, even the user only needs to twist handle a week and can rotate the screw of dismantling or installing three weeks, improved operating efficiency, lightened user's working strength, the time of having practiced thrift;

2. the utility model discloses a set up the conversion head, fixture block and spring, when needs are cut into a style of calligraphy edge of a knife and are used with the cross edge of a knife, through pressing the fixture block, make fixture block compression spring receive the inside of fixed slot, demolish the conversion head can, when needs are cut into a style of calligraphy edge of a knife and are used, press down the fixture block equally and take in the inside of fixed slot with it, and with the conversion head cover in the bottom outside of second pivot, loosen the fixture block again, can accomplish the fixed to the conversion head when the inside spacing drill way of conversion head is gone into to the fixture block card, and then made things convenient for the switching of screwdriver edge of a knife, compare current change edge of a knife mode, change speed is faster, efficiency is higher.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the structure schematic diagram of the utility model after the middle protective shell and the conversion head are disassembled.

Fig. 3 is a schematic diagram of the extension and retraction of the middle clamping block of the present invention.

Fig. 4 is a schematic view of a connection structure between the first gear and the second gear of the present invention.

The reference signs are: the device comprises a handle 1, a protective shell 2, a first rotating shaft 3, a first gear 4, a second gear 5, a second rotating shaft 6, a fixed frame 7, a fixed shell 8, a conversion head 9, a cross-shaped knife edge 10, a clamping block 11, a straight-line-shaped knife edge 12, a fixed groove 13 and a spring 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a hand-press type rotary screwdriver as shown in figures 1-4, which comprises a handle 1, wherein the outer side of the bottom of the handle 1 is connected with a protective shell 2, the bottom end of the handle 1 is connected with a first rotating shaft 3 at the position positioned in the protective shell 2, the outer part of the first rotating shaft 3 at the position positioned in the protective shell 2 is connected with a first gear 4, one side of the first gear 4 is connected with a second gear 5, the middle part of the second gear 5 is connected with a second rotating shaft 6, the bottom end of the protective shell 2 at the position positioned below the first gear 4 and the second gear 5 is connected with a fixed frame 7, the position of the bottom of the fixed frame 7 at the outer part of the second rotating shaft 6 is connected with a fixed shell 8, the outer side of the bottom of the second rotating shaft 6 is connected with a conversion head 9, the bottom end of the conversion head 9 is provided with a cross-shaped knife edge 10, the bottom end of the second rotating shaft 6 at the position of the conversion head, and two outer walls of the bottom of the second rotating shaft 6 are both provided with a fixture block 11, a fixing groove 13 is arranged in the second rotating shaft 6 corresponding to the inner side of the fixture block 11, and a spring 14 is connected to one end of the fixture block 11 inside the fixing groove 13.

Furthermore, the top of the fixing frame 7 is arranged at the outer position of the bottom end of the first rotating shaft 3, so that the first rotating shaft 3 can stably rotate.

Further, first gear 4 is connected through the tooth's socket meshing with second gear 5 between, and the external diameter of first gear 4 is 3 times of the external diameter of second gear 5, is convenient for drive second gear 5 through first gear 4, and when first gear 4 rotated a week, can drive second gear 5 and rotate three weeks.

Furthermore, a groove is formed in the inner portion of the conversion head 9 corresponding to the outer side of the bottom of the second rotating shaft 6, and the inner diameter of the groove is larger than the outer diameter of the bottom of the second rotating shaft 6, so that the conversion head 9 can be conveniently installed on the outer side of the bottom of the second rotating shaft 6.

Furthermore, the two outer walls of the conversion head 9 are provided with limiting holes corresponding to the outer positions of the clamping blocks 11, so that the conversion head 9 can be conveniently fixed after being installed.

Further, the depth of the fixing groove 13 is greater than the length of the latch 11, and the latch 11 and the spring 14 are connected by welding, so that the latch 11 can be conveniently stretched in the fixing groove 13.

The utility model discloses the theory of operation:

referring to the attached

drawings

1, 2 and 4 of the specification, when the screw driver is used, a user drives the handle 1 by screwing, the handle 1 drives the first rotating shaft 3 to rotate, so that the first gear 4 drives the second gear 5 connected in a meshing manner to rotate, the second gear 5 drives the second rotating shaft 6 to rotate when rotating, and then the screw is disassembled or assembled through a knife edge at the bottom of the second rotating shaft 6;

further, referring to fig. 1-3 of the specification, when the knife edge needs to be switched, that is, when the cross-shaped knife edge 10 is cut into the linear knife edge 12 for use, the fixture block 11 is pressed, the fixture block 11 compresses the spring 14 to be retracted into the inside of the fixing groove 13, and the conversion head 9 is removed, when the linear knife edge 12 needs to be cut into the cross-shaped knife edge 10 for use, the fixture block 11 is also pressed to be retracted into the inside of the fixing groove 13, the conversion head 9 is sleeved outside the bottom of the second rotating shaft 6, the fixture block 11 is released, and when the fixture block 11 is clamped into the limiting hole in the conversion head 9, the conversion head 9 can be fixed.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hand-press rotary screwdriver comprises a handle (1), and is characterized in that: the bottom outer side of the handle (1) is connected with a protective shell (2), the bottom end of the handle (1) is located in the protective shell (2) and is connected with a first rotating shaft (3), the outside of the first rotating shaft (3) is located in the protective shell (2) and is connected with a first gear (4), one side of the first gear (4) is connected with a second gear (5), the middle of the second gear (5) is connected with a second rotating shaft (6), the bottom end of the protective shell (2) is located below the first gear (4) and the second gear (5) and is connected with a fixing frame (7), the bottom of the fixing frame (7) is located in the outside of the second rotating shaft (6) and is connected with a fixed shell (8), the bottom outer side of the second rotating shaft (6) is connected with a conversion head (9), and the bottom end of the conversion head (9) is provided with a cross-shaped knife edge (10), the bottom of second pivot (6) is located the inside of conversion head (9) and is provided with style of calligraphy edge of a knife (12), and two outer walls in the bottom of second pivot (6) all are provided with fixture block (11), the inside that corresponds fixture block (11) in the inside of second pivot (6) is provided with fixed slot (13), the internal connection that the one end of fixture block (11) is located fixed slot (13) has spring (14).

2. The hand-operable rotary screwdriver of claim 1, wherein: and a bearing seat is arranged at the position, outside the bottom end of the first rotating shaft (3), of the top of the fixing frame (7).

3. The hand-operable rotary screwdriver of claim 1, wherein: the first gear (4) and the second gear (5) are in meshed connection through tooth grooves, and the outer diameter of the first gear (4) is 3 times that of the second gear (5).

4. The hand-operable rotary screwdriver of claim 1, wherein: a groove is formed in the position, corresponding to the outer side of the bottom of the second rotating shaft (6), in the conversion head (9), and the inner diameter of the groove is larger than the outer diameter of the bottom of the second rotating shaft (6).

5. The hand-operable rotary screwdriver of claim 1, wherein: and limiting holes are formed in the outer positions, corresponding to the clamping blocks (11), of the two outer walls of the conversion head (9).

6. The hand-operable rotary screwdriver of claim 1, wherein: the depth of the fixing groove (13) is larger than the length of the clamping block (11), and the clamping block (11) and the spring (14) are connected in a welding mode.