CN211249822U

CN211249822U - Quick wrench

Info

Publication number: CN211249822U
Application number: CN201921395971.5U
Authority: CN
Inventors: 唐树现
Original assignee: Weixian Shengtang Rubber & Plastic Products Co ltd
Current assignee: Weixian Shengtang Rubber & Plastic Products Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-08-14
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to an instrument technical field especially relates to a speed wrench. Comprises a wrench shell; a first rotating shaft is arranged on the left side of the wrench shell; a first belt pulley is arranged at the upper part of the first rotating shaft; a second rotating shaft is arranged on the right side of the wrench shell; a wrench inner cavity is arranged in the wrench shell; a second belt pulley is arranged at the upper part of the second rotating shaft; the first belt pulley and the second belt pulley are in belt transmission and are positioned in the wrench inner cavity; a first sealing cover is arranged above the first rotating shaft; a toggle button is arranged in the middle of the first sealing cover; the upper end of the second rotating shaft is connected with a rocker arm; a holding rod is arranged on the right side of the rocker arm; the lower end of the first rotating shaft is connected with the sleeve. A speed wrench, can be quick screw up or loosen the screw to easy operation, efficiency has obtained improving by a wide margin.

Description

Quick wrench

Technical Field

The utility model relates to an instrument technical field especially relates to a speed wrench.

Background

A wrench is a tool that is widely used to tighten or loosen a bolt or a nut. In the beginning and middle stages of the tightening operation or the middle and end stages of the loosening operation, not much torque is needed, but the prior manual wrench needs to be pulled once by once, so that the efficiency is very low.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a quick wrench aiming at the technical defects, which comprises a wrench shell; a first rotating shaft is arranged on the left side of the wrench shell, and a notch is formed in the upper end of the first rotating shaft; a first belt pulley is arranged at the upper part of the first rotating shaft; a second rotating shaft is arranged on the right side of the wrench shell; a wrench inner cavity is arranged in the wrench shell; a second belt pulley is arranged at the upper part of the second rotating shaft; the first belt pulley and the second belt pulley are in belt transmission and are positioned in the wrench inner cavity; a first sealing cover is arranged above the first rotating shaft; the first sealing cover is fixed on the wrench shell through screws; a through groove penetrating through the upper surface and the lower surface of the first sealing cover is arranged in the middle of the first sealing cover, and a toggle button is arranged in the through groove; a second sealing cover is arranged above the second rotating shaft; the second sealing cover is fixed on the wrench shell through screws; the upper end of the second rotating shaft is rigidly connected with a rocker arm; a holding rod is hinged to the right side of the rocker arm; the holding rod is positioned in a groove in the middle of the right side of the wrench shell; the lower end of the first rotating shaft is connected with the sleeve.

Further optimizing the technical scheme, the inner side of the belt is provided with a sawtooth-shaped groove; the parts of the first belt pulley and the second belt pulley, which are contacted with the belt, are also provided with sawtooth-shaped grooves.

A speed wrench, can be quick screw up or loosen the screw to easy operation, efficiency has obtained improving by a wide margin.

Drawings

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

Fig. 2 is a sectional view taken along line a-a of the present invention.

Fig. 3 is a schematic view of the belt and belt pulley of the present invention.

Fig. 4 is a top view of the present invention.

Fig. 5 is a schematic structural diagram of the fast mode of the present invention.

In the figure: 1. a wrench housing; 2. a first cover; 3. a toggle button; 4. a belt; 5. a second cover; 6. a rocker arm; 7. a holding rod; 8. a second pulley; 9. a second rotating shaft; 10. a first pulley; 11. a first rotating shaft; 12. a sleeve; 13. an inner cavity of the wrench; 14. a groove; 15. and (7) screws.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-5, a speed wrench comprises a wrench housing 1; a first rotating shaft 11 is arranged on the left side of the wrench shell 1, and a gap is arranged at the upper end of the first rotating shaft 11; a first belt pulley 10 is arranged at the upper part of the first rotating shaft 11; a second rotating shaft 9 is arranged on the right side of the wrench shell 1; a wrench inner cavity 13 is arranged in the wrench shell 1; a second belt pulley 8 is arranged at the upper part of the second rotating shaft 9; the first belt pulley 10 and the second belt pulley 8 are driven by the belt 4 and are positioned in the wrench inner cavity 13; a first sealing cover 2 is arranged above the first rotating shaft 11; the first cover 2 is fixed on the wrench shell 1 through screws 15; a through groove penetrating through the upper surface and the lower surface of the first sealing cover 2 is formed in the middle of the first sealing cover 2, a toggle button 3 is arranged in the through groove, the toggle button 3 can be toggled left and right, when the toggle button 3 is toggled to the left, a notch in the upper end of the first rotating shaft 11 can be clamped, so that the first rotating shaft 11 and the wrench shell 1 can rotate together, and when the toggle button 3 is toggled to the right, the first rotating shaft 11 can be moved out from the notch in the upper end of the first rotating shaft 11, so that the first rotating shaft 11 can freely rotate relative; a second sealing cover 5 is arranged above the second rotating shaft 9; the second cover 5 is fixed on the wrench shell 1 through screws 15; the upper end of the second rotating shaft 9 is rigidly connected with the rocker arm 6; a holding rod 7 is hinged on the right side of the rocker arm 6; the holding rod 7 is positioned in a groove 14 in the middle of the right side of the wrench shell 1, and the holding rod 7 can be unscrewed from the groove 14 and rotate to the upper part of the rocker arm 6; the lower end of the first rotating shaft 11 is connected with a sleeve 12; the sleeve 12 can be changed to a different format.

The inner side of the belt 4 is provided with a saw-toothed groove, and the parts of the first belt pulley 10 and the second belt pulley 8, which are contacted with the belt 4, are also provided with the saw-toothed groove to prevent relative sliding.

In use, taking loosening the nut as an example, the sleeve 12 is sleeved on the nut, the toggle button 3 is turned to the left as shown in fig. 1, the right side of the wrench shell 1 is rotated, and the nut is loosened; then, as shown in fig. 5, the toggle button 3 is toggled to the right, the holding rod 7 is toggled to the vertically upward position, the holding rod 7 is rotated around the second rotating shaft 9, and the nut is rapidly removed.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A speed wrench, which is characterized in that: comprises a wrench shell (1); a first rotating shaft (11) is arranged on the left side of the wrench shell (1), and a notch is formed in the upper end of the first rotating shaft (11); a first belt pulley (10) is arranged at the upper part of the first rotating shaft (11); a second rotating shaft (9) is arranged on the right side of the wrench shell (1); a wrench inner cavity (13) is arranged in the wrench shell (1); a second belt pulley (8) is arranged at the upper part of the second rotating shaft (9); the first belt pulley (10) and the second belt pulley (8) are driven by a belt (4) and are positioned in a wrench inner cavity (13); a first sealing cover (2) is arranged above the first rotating shaft (11); the first sealing cover (2) is fixed on the wrench shell (1) through screws (15); a through groove penetrating through the upper surface and the lower surface of the first sealing cover (2) is arranged in the middle of the first sealing cover, and a toggle button (3) capable of sliding left and right is arranged in the through groove; a second sealing cover (5) is arranged above the second rotating shaft (9); the second sealing cover (5) is fixed on the wrench shell (1) through screws (15); the upper end of the second rotating shaft (9) is rigidly connected with a rocker arm (6); a holding rod (7) is hinged to the right side of the rocker arm (6); the holding rod (7) is positioned in a groove (14) in the middle of the right side of the wrench shell (1); the lower end of the first rotating shaft (11) is connected with a sleeve (12).

2. A speed wrench as claimed in claim 1, wherein: a sawtooth-shaped groove is formed in the inner side of the belt (4); the parts of the first belt pulley (10) and the second belt pulley (8) which are contacted with the belt (4) are also provided with sawtooth-shaped grooves.