CN-122008118-A - Ratchet device

CN122008118ACN 122008118 ACN122008118 ACN 122008118ACN-122008118-A

Abstract

The invention relates to a ratchet device, which comprises 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 and a second braking blocks, the first and the second braking blocks are provided with ratchet teeth, the directions opposite to gear teeth are provided with braking grooves, the two sides of the first and the second braking blocks are provided with arc parts, the two ends of the first and the second braking blocks are provided with a butting part with thickness (H, H), the thickness H of the first braking block is larger than the thickness H of the second braking block, a fixing piece is used for fixing the ratchet steering control device in the ratchet space, the steering device comprises a poking piece and a first and a second jacking hole, the first and the second jacking holes respectively correspond to the first and the second braking blocks, the first and the second jacking holes respectively accommodate the first and the second jacking heads and the first and the second jacking springs, and the first jacking heads and the second jacking springs are in the first and the second grooves.

Inventors

CHEN YIFU
CHEN HEQIAN

Assignees

陈怡富
陈和谦

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (1)

1. The ratchet device is characterized by comprising 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 and a first and a second braking blocks, wherein the directions of the first and the second braking blocks facing the gear teeth are provided with ratchets, the directions of the first and the second braking blocks facing away from the gear teeth are provided with braking grooves, the two sides of the first and the second braking blocks are provided with arc parts corresponding to the shape of the concave arc grooves, the two ends of the first and the second braking blocks form a propping part with thickness (H, H), and the thickness H of the first braking block is larger than the thickness H of the second braking block; 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 a first pushing hole and a second pushing hole which are arranged in the toggle piece, wherein the first pushing hole and the second pushing hole can respectively correspond to the first pulling block and the second pulling block, the first pushing hole and the second pushing hole are respectively used for accommodating the first pushing head and the second pushing head and accommodating the first pushing spring and the second pushing spring in the first pushing head and the second pushing head, so that the first pushing head and the second pushing head which are pushed by the first pushing spring and the second pushing spring can be pushed in the first pushing groove and the second pushing groove of the first pulling block and the second pulling block, and the structure can achieve the effects that a user can rotate at the minimum angle when operating the steering device, and the space limitation and the simple assembly are avoided.

Description

Ratchet device Technical Field The invention belongs to the field of ratchet devices, in particular to a wrench tool applied to a hand tool, and particularly relates to a ratchet wrench capable of rotating. Background As shown in the eighth, ninth and tenth diagrams, the structure of the known reversible ratchet wrench generally comprises a ratchet 2 and a ratchet block 3 arranged in the wrench head 1, a switching unit 4 for controlling the ratchet block 3, the switching unit 4 generally comprises a toggle member 5, a spring 6 and a linkage member 7 arranged therein, the linkage member 7 is protruded out of 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 the left and right turning of the toggle member 5, so as to change the rotation direction of the ratchet 2. The above conventional example has the following problems: Firstly, when the toggle member 5 is toggled and indexed, the linking member 7 is pushed along the pushing slot 8 of the ratchet block 3, and at this time, because 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 tight pushing of the ratchet block 3 and the actuating wall 11 is easily caused without any margin, so that the unsmooth trip and transposition of the ratchet block 3 is easily caused during use, and a user has a feeling of unsmooth clamping during use. Secondly, 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 degrees to 0 degrees to 26 degrees of angle deflection occurs, 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 during use, which is insufficient. Furthermore, 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 products 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 is required to be continuously increased, but the force bearable by the teeth of the wheel is reduced without changing the size of the ratchet, 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. In view of the above-mentioned problems and improvements of the prior art, the present inventors have put into many studies for a long time to study the related knowledge, compare the advantages and disadvantages of the related products, and conduct many experiments and tests, so as to finally develop a "ratchet device" to improve the above-mentioned disadvantages, so as to meet the needs of the public. Disclosure of Invention The invention relates to a ratchet device, which mainly 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 and a first and a second braking blocks, wherein the directions of the first and the second braking blocks facing the gear teeth are provided with ratchets, the directions of the first and the second braking blocks facing away from the gear teeth are provided with braking grooves, the two sides of the first and the second braking blocks are provided with arc parts corresponding to the shape of the concave arc grooves, the two ends of the first and the second braking blocks form a propping part with thickness (H, H), and the thickness H of the first braking block is larger than the thickness H of the second braking block; 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 a first pushing hole and a second pushing hole which are arranged in the toggle piece, wherein the first pushing hole and the second pushing hole can respectively correspond to the first pullin