CN111975695A

CN111975695A - Multipurpose gap convenient labor-saving wrench

Info

Publication number: CN111975695A
Application number: CN202010874472.5A
Authority: CN
Inventors: 顾意
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-11-24

Abstract

The invention discloses a multipurpose convenient and labor-saving gap wrench, which comprises a handle, a shell and a rotating block, wherein gear teeth are arranged at the front end of the handle, and the front part of the handle is rotationally connected with the shell; a gear set is arranged in the shell and is matched with the gear teeth to rotate, and the gear set has a one-way transmission function; the outer side of each rotating block is provided with a regular hexagon groove, the rotating blocks are connected with the output part of the gear set and rotate in a single direction, and the rotating blocks are two in number and have square cross-sectional profiles; a spring is arranged between the lower end of the handle and the bottom surface of the shell; utilize the tooth of a cogwheel on hand and gear train's meshing to rotate, drive the turning block rotation of gear train output both sides, the regular hexagon recess in the turning block outside blocks the screw and rotates, can make things convenient for and laborsaving twist the screw in the narrow gap.

Description

Multipurpose gap convenient labor-saving wrench

Technical Field

The invention relates to the field of mechanical tools, in particular to a multipurpose convenient and labor-saving gap wrench.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other threads to tightly hold the opening or trepanning firmware of the bolts or nuts by utilizing the lever principle; in the machine repair process, some nuts in equipment need to pass through long and narrow gap and just can twist, and ordinary spanner can't insert and use in the gap, and some purpose-made spanners have hard great, the inconvenient problem of rotation when rotating the nut after inserting to long and narrow gap.

Disclosure of Invention

The invention provides a multipurpose convenient and labor-saving gap wrench which can be used in a narrow gap and can rotate a screw in the gap conveniently and in a labor-saving manner.

In order to achieve the purpose, the technical scheme provided by the invention is a multipurpose convenient and labor-saving gap wrench, which comprises a handle, a shell and a rotating block, wherein gear teeth are arranged at the front end of the handle, and the front part of the handle is rotationally connected with the shell; a gear set is arranged in the shell and is matched with the gear teeth to rotate, and the gear set has a one-way transmission function; a regular hexagon groove is formed in the outer side of the rotating block, and the rotating block is connected with the output part of the gear set; the handle rotates up and down to drive the gear set to rotate, so that the rotating block is driven to rotate to screw the screw.

As a refinement, the gear set comprises a first gear, a first driven wheel, a second gear, a second driven wheel and a third gear; the first gear is meshed with gear teeth to rotate, a first rotating shaft is arranged in the center of the first gear, two ends of the first rotating shaft penetrate through the shell and are in rotating fit with the shell, and the first driven wheel and the first gear are coaxial gears; the second gear and the first driven wheel are meshed for rotation, a second rotating shaft is arranged in the center of the second gear, two ends of the second rotating shaft penetrate through the shell, and the second driven wheel and the second gear are coaxial gears; the third gear is meshed with the second driven wheel to rotate, a third rotating shaft is arranged in the center of the third gear, and two ends of the third rotating shaft penetrate through the shell and are in rotating fit with the shell; the first gear rotates to drive the coaxial first driven wheel to rotate, the second gear and the first driven wheel are meshed to rotate to drive the second driven wheel to rotate, the third gear and the second driven wheel are meshed to rotate, and finally, the meshing rotation of the whole gear set is achieved.

As an improvement, notches are symmetrically formed in the side face of the shell, and the second rotating shaft slides up and down in the notches; the second rotating shaft slides up and down in the notch through the up-and-down rotation of the handle, so that the third gear and the second driven wheel are separated and meshed.

As an improvement, the rotating blocks are provided with two rotating blocks and connected with two ends of the third rotating shaft; the two ends of the third rotating shaft are respectively provided with a rotating block which can directly rotate the nuts on the left side or the right side without turning a spanner.

As a refinement, the cross-sectional profile of the turning block is square.

As an improvement, a fourth rotating shaft is arranged at the front part of the handle, and two ends of the fourth rotating shaft penetrate through the shell; the arrangement of the rotating shaft gives a handle fulcrum and simultaneously realizes the rotation of the handle.

As an improvement, a spring is arranged between the lower end of the handle and the bottom surface of the shell; the arrangement of the spring ensures that the handle can automatically spring back after being pressed down.

Compared with the prior art, the invention has the advantages that: utilize the tooth of a cogwheel on hand and gear train's meshing to rotate, drive the turning block rotation of gear train output both sides, the regular hexagon recess in the turning block outside blocks the screw and rotates, can make things convenient for and laborsaving twist the screw in the narrow gap.

Drawings

FIG. 1 is a sectional view A-A of a multipurpose gap convenience labor saving wrench of the present invention.

Fig. 2 is a perspective view of the multipurpose gap convenient labor-saving wrench of the invention.

Fig. 3 is a front view of a multipurpose gap handy labor-saving wrench of the present invention.

Fig. 4 is a top view of a multipurpose gap handy labor saving wrench according to the present invention.

Fig. 5 is a left side view of the multipurpose gap handy labor saving wrench of the present invention.

As shown in the figure: 1. handle, 2, shell, 3, fourth pivot, 4, the teeth of a cogwheel, 5, first driven wheel, 6, second driven wheel, 7, third gear, 8, spring, 9, first gear, 10, first pivot, 11, second gear, 12, second pivot, 13, third pivot, 14, notch, 15, turning block, 16, regular hexagon recess, 17, gear train.

Detailed Description

The multipurpose gap convenient labor-saving wrench of the invention is further described in detail with reference to the accompanying drawings.

A multipurpose convenient labor-saving gap wrench comprises a handle 1, a shell 2 and a rotating block 15, wherein gear teeth 4 are arranged at the front end of the handle 1, and the front part of the handle 1 is rotatably connected with the shell 2; a gear set 17 is arranged in the shell 2, the gear set 17 is matched with the gear teeth 4 to rotate, and the gear set 17 has a one-way transmission function; a regular hexagon groove 16 is formed in the outer side of the rotating block 15, and the rotating block 15 is connected with the output part of the gear set 17; the handle 1 rotates up and down to drive the gear set 17 to rotate, so as to drive the rotating block 15 to rotate to screw the screw.

The gear set 17 comprises a first gear 9, a first driven wheel 5, a second gear 11, a second driven wheel 6 and a third gear 7; the first gear 9 and the gear teeth 4 are meshed for rotation, a first rotating shaft 10 is arranged in the center of the first gear 9, two ends of the first rotating shaft 10 penetrate through the shell 2 and are in rotating fit with the shell 2, and the first driven wheel 5 and the first gear 9 are coaxial gears; the second gear 11 and the first driven gear 5 are meshed to rotate, a second rotating shaft 12 is arranged in the center of the second gear 11, two ends of the second rotating shaft 12 penetrate through the shell 2, and the second driven gear 6 and the second gear 11 are coaxial gears; the third gear 7 and the second driven wheel 6 are meshed for rotation, a third rotating shaft 13 is arranged in the center of the third gear 7, and two ends of the third rotating shaft 13 penetrate through the shell 2 and are in rotating fit with the shell 2; the first gear 9 rotates to drive the coaxial first driven wheel 5 to rotate, the second gear 11 and the first driven wheel 5 are meshed to rotate to drive the second driven wheel 6 to rotate, the third gear 7 and the second driven wheel 6 are meshed to rotate, and finally, the whole gear set 17 is meshed to rotate.

Notches 14 are symmetrically formed in the side face of the shell 2, and the second rotating shaft 12 slides up and down in the notches 14; the second rotating shaft 12 slides up and down in the notch 14 through the up-and-down rotation of the handle 1, so that the third gear 7 is separated from and meshed with the second driven wheel 6.

The rotating blocks 15 are provided with two rotating blocks in total and are connected with two ends of the third rotating shaft 13; the two ends of the third rotating shaft 13 are respectively provided with a rotating block 15, so that the left or right nut can be directly rotated without turning a spanner.

The cross section of the rotating block 15 is square.

A fourth rotating shaft 3 is arranged at the front part of the handle 1, and two ends of the fourth rotating shaft 3 penetrate through the shell 2; the arrangement of the rotating shaft gives a fulcrum to the handle 1 and simultaneously realizes the rotation of the handle 1.

A spring 8 is arranged between the lower end of the handle 1 and the bottom surface of the shell 2; the provision of the spring 8 ensures that the handle 1 automatically springs back after being depressed.

The working principle of the invention is as follows with the attached figure 1: pressing handle 1, the terminal teeth of a cogwheel 4 of handle 1 and gear train 17 meshing rotation drive the turning block 15 rotation of gear train 17 output, and second pivot 12 slides from top to bottom in notch 14, realizes the separation and the meshing of second driven wheel 6 and third gear 7, guarantees turning block 15 unidirectional rotation.

With reference to fig. 1-5, in the specific implementation of the present invention, when the handle 1 is pressed, the spring 8 at the lower portion of the front end of the handle 1 is compressed, the handle 1 rotates downward through the fourth rotating shaft 3 penetrating through the housing 2, the gear teeth 4 at the end of the handle 1 rotate, the first gear 9 rotates in mesh with the gear teeth 4, the first gear 9 drives the first driven wheel 5 to rotate through the first rotating shaft 10 penetrating through the housing 2, the second gear 11 rotates in mesh with the first driven wheel 5, meanwhile, the second rotating shaft 12 slides downwards in the notch 14, the second gear 11 drives the second driven wheel 6 to rotate through the second rotating shaft 12, the third gear 7 and the second driven wheel 6 are meshed to rotate, two ends of the third rotating shaft 13 are connected with the rotating blocks 15, the third gear 7 drives the rotating blocks 15 to rotate through the third rotating shaft 13 penetrating through the shell 2, and the regular hexagonal grooves 16 are sleeved on the screws to rotate and loosen the screws; during the downward sliding process of the second rotating shaft 12, the second driven wheel 6 is gradually separated from the third gear 7, and when the second rotating shaft 12 slides to the lowest end, the second driven wheel 6 is completely separated from the third gear 7.

After the handle 1 is loosened, the spring 8 rebounds automatically, the handle 1 rotates upwards, the gear teeth 4 at the tail end of the handle 1 rotate, the first gear 9 and the gear teeth 4 rotate in a meshed mode, the first gear 9 drives the first driven wheel 5 to rotate through the first rotating shaft 10, the second gear 11 and the first driven wheel 5 rotate in a meshed mode, the second gear 11 drives the second driven wheel 6 to rotate through the second rotating shaft 12, meanwhile, the second rotating shaft 12 slides upwards in the notch 14 to the upper end of the notch 14, in the process that the second rotating shaft 12 slides upwards, the second driven wheel 6 is not in contact with the third gear 7, and the third gear 7 does not rotate.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a convenient laborsaving spanner in multipurpose gap, includes handle, shell and turning block, its characterized in that:

the front end of the handle is provided with gear teeth, and the front part of the handle is rotationally connected with the shell;

a gear set is arranged in the shell and is matched with the gear teeth to rotate, and the gear set has a one-way transmission function;

and a regular hexagon groove is formed in the outer side of the rotating block, and the rotating block is connected with the output part of the gear set.

2. The multipurpose gap convenient labor-saving wrench as claimed in claim 1, characterized in that: the gear set comprises a first gear, a first driven wheel, a second gear, a second driven wheel and a third gear;

the first gear is meshed with gear teeth to rotate, a first rotating shaft is arranged in the center of the first gear, two ends of the first rotating shaft penetrate through the shell and are in rotating fit with the shell, and the first driven wheel and the first gear are coaxial gears;

the second gear and the first driven wheel are meshed for rotation, a second rotating shaft is arranged in the center of the second gear, two ends of the second rotating shaft penetrate through the shell, and the second driven wheel and the second gear are coaxial gears;

the third gear and the second driven wheel are meshed to rotate, a third rotating shaft is arranged at the center of the third gear, and two ends of the third rotating shaft penetrate through the shell and are in running fit with the shell.

3. The multipurpose gap convenient labor-saving wrench as claimed in claim 2, characterized in that: notches are symmetrically formed in the side face of the shell, and the second rotating shaft slides up and down in the notches; through the up-and-down rotation of the handle, the second rotating shaft slides up and down in the notch, and then the third gear and the second driven wheel are separated and meshed.

4. The multipurpose gap convenient labor-saving wrench as claimed in claim 2, characterized in that: the rotating blocks are provided with two rotating blocks and connected with two ends of the third rotating shaft.

5. The multipurpose gap convenient labor-saving wrench as claimed in claim 4, characterized in that: the cross section of the rotating block is square.

6. The multipurpose gap convenient labor-saving wrench as claimed in claim 1, characterized in that: the handle front portion is equipped with the fourth pivot, the shell is run through at fourth pivot both ends.

7. The multipurpose gap convenient labor-saving wrench as claimed in claim 6, characterized in that: and a spring is arranged between the lower end of the handle and the bottom surface of the shell.