CN-122008117-A - Ratchet wrench device

CN122008117ACN 122008117 ACN122008117 ACN 122008117ACN-122008117-A

Abstract

The invention relates to a ratchet wrench device, which comprises a wrench head, a ratchet space and a steering hole, wherein the ratchet space is concavely provided with a concave arc groove towards one side of the steering hole, the ratchet space is provided with a ratchet steering control device, the steering hole is provided with a steering device, the ratchet steering control device comprises a cylindrical ratchet, a first braking block and a second braking block, the first braking block and the second braking block are provided with ratchets facing to the directions of gear teeth, the directions of the back teeth are provided with braking grooves, the two sides of the first braking block and the second braking block are provided with arc parts, the ratchets are meshed with the ratchet teeth, the braking grooves form a first rotating arc part and a second rotating arc part, the tail ends of the two sides of the braking grooves are provided with back tops, a fixing piece is used for fixing the ratchet steering control device in the ratchet space, the steering device comprises a poking piece and two jacking holes, the jacking holes are respectively corresponding to the first braking block and the second braking block, the ratchets of the first braking block and the second braking block are respectively meshed with corresponding tooth concave parts and tooth tip sides, the jacking holes are respectively accommodated with jacking heads and jacking springs, so that the jacking heads jacked by the jacking springs can jack the jacking arcs to the jacking heads to the rotating arcs.

Inventors

CHEN YIFU
CHEN HEQIAN

Assignees

陈怡富
陈和谦

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (2)

1. A ratchet wrench device comprises a wrench head, wherein the wrench head is provided with a penetrated ratchet space and a steering hole, and a semicircular concave arc groove is concavely arranged on one side of the ratchet space of the wrench head towards the steering hole, so that the ratchet space is provided with a ratchet steering control device, and the steering hole is provided with a steering device; The ratchet steering control device comprises a cylindrical ratchet wheel with gear teeth at the periphery, a first braking block and a second braking block, wherein the first braking block and the second braking block are provided with ratchets facing the gear teeth, braking grooves are formed on the first braking block and the second braking block and are opposite to the gear teeth, arc parts are arranged on the two sides of the first braking block and the second braking block relative to the shape of the concave arc grooves, the ratchets are used for occluding the gear teeth of the ratchet wheel, the braking grooves are respectively provided with a first rotating arc part and a second rotating arc part which correspond to the ratchet wheels, and the tail ends of the two sides of the braking grooves are provided with inwards concave return parts; a fixing member for fixing the ratchet steering control device in the ratchet space of the wrench head, and The steering device comprises a toggle piece and two jacking holes arranged in the toggle piece, wherein the jacking holes can respectively correspond to the first and second braking blocks, ratchet teeth of the first and second braking blocks can respectively be meshed with the corresponding tooth concave parts of ratchet wheel teeth and the tooth tip sides of the corresponding ratchet wheel teeth, and in addition, the jacking holes are respectively used for accommodating the jacking head and the jacking springs in the jacking head, so that the jacking head sprung by the jacking springs can be jacked on the rotating arc parts of the braking blocks, and the structural effects of the invention are achieved.
2. The ratchet wrench device of claim 1, wherein a third arc of rotation is provided in the middle of the detent groove.

Description

Ratchet wrench device Technical Field The invention belongs to the field of ratchet wrench devices, in particular to a ratchet wrench tool applied to a hand tool, and particularly relates to a ratchet wrench tool capable of rotating back and forth. Background As shown in fig. 9, 10 and 11, a conventional reversible ratchet wrench is generally configured to include a ratchet 2 and a ratchet block 3 disposed inside a wrench head 1, a switching unit 4 is used to control the ratchet block 3, the switching unit 4 generally includes a toggle member 5, a spring 6 and a linkage member 7 disposed therein, the linkage member 7 is protruded from the toggle member 5 under the action of the spring 6 and extends into a top slot 8 of the ratchet block 3, and the direction and position of the linkage member 7 and the ratchet block 3 are correspondingly changed by turning the toggle member 5 left and right, so as to change the rotation direction of the ratchet 2. The above conventional example has the following problems: When the poking piece 5 is poked and shifted, the linkage piece 7 is pushed along the jacking groove 8 of the ratchet block 3, at this time, because the two side parts 31 of the ratchet block 3 are in linear plane contact with the actuating wall 9 of the wrench head 1, the tight jacking of the ratchet block 3 and the actuating wall 11 is easy to cause without any margin, so that the tripping and shifting of the ratchet block 3 are easy to cause unsmooth in use, and a user has a feeling of unsmooth clamping in use. In the same way as described above, since the two side portions 31 of the ratchet block 3 are in linear plane contact with the actuating wall 9 of the wrench head 1, the left and right deflection angles of the interlocking member 7 are easily small, and only about-26 to 0 to 26 degrees of deflection is required, so that the maximum pushing effect of the ratchet block 3 and the ratchet 2 cannot be achieved, and the maximum torque force can be achieved when the wrench is used, which is insufficient. Moreover, since the peripheral ratchet 21 of the ratchet 2 designed by the ratchet wrench is matched with the single linkage member 7, the number of the ratchet 21 is limited, so that the number of common ratchet teeth is 60-72 teeth, the necessary swing angle of the wrench is 5-6 degrees, however, as technological development articles are smaller, various devices are more and more crowded, the ratchet wrench with smaller necessary swing angle is more and more required, if the swing angle is required to be reduced, the number of teeth of the wheel must be continuously increased, but if the size of the ratchet is not changed, the force bearable by the teeth of the wheel is reduced, if the size of the ratchet is increased, the wrench cannot be constructed in a narrow space, and how to develop the ratchet size and the number of teeth of the ratchet are not required to be changed, so that the necessary swing angle of the ratchet wrench is further reduced. The ratchet wheel 2 pushing groove 8 designed by the ratchet wrench is in a circular arc shape, the arc of the circular arc shape is designed by taking the length of the ratchet wheel 2 as an arc center, so that the arc of the circular arc shape is larger, the oblique pushing force of the linkage piece 7 when pushing the ratchet block 3 is not large enough, and the requirement of modern bearing force cannot be met naturally. In view of the above-mentioned problems caused by the prior art, the present inventors have made various studies on the related knowledge, compared the advantages and disadvantages of the related products, and conducted many experiments and tests, and finally developed a ratchet wrench device to improve the above-mentioned disadvantages, so as to meet the needs of the public. Therefore, there is a need to design a ratchet wrench device to solve the above-mentioned problems. Disclosure of Invention The invention aims to provide a ratchet wrench device, which comprises a wrench head part, wherein the wrench head part is provided with a penetrated ratchet space and a steering hole, and a semicircular concave arc groove is concavely arranged on one side of the ratchet space of the wrench head part towards the steering hole, so that the ratchet space is provided with a ratchet steering control device, and the steering hole is provided with a steering device; The ratchet steering control device comprises a cylindrical ratchet wheel with gear teeth at the periphery, a first braking block and a second braking block, wherein a ratchet is arranged in the direction of the first braking block and the second braking block facing the gear teeth, a braking groove is formed in the direction of the first braking block and the second braking block facing away from the gear teeth, two sides of the first braking block and the second braking block are provided with arc parts corresponding to the shape of the concave arc groove, wherein the ratchet is used f