Ratchet wrench main body and manufacturing method thereof

Abstract

The invention relates to a ratchet wrench main body and a manufacturing method thereof. The ratchet wrench main body comprises a handle and a head part, wherein a perforated hole accommodating ratchet is sleeved on the head part; the head part is provided with a control chamber accommodated braking block; a fluted chamber is located on one side of a control chamber and is orthogonal with the axial direction of a penetrated hole, so as to accommodate an elastic piece and a jacking piece; the head part is provided with a first surface and a second surface; at least one embedding hole is respectively formed between the first surface and the fluted chamber and between the second surface and the fluted chamber; each embedding hole is formed by removing a slide block during mold casting and mold withdrawing processes; one side of each embedding hole is inserted into the other side but does not pass through the other side; each embedding hole is smaller than the elastic piece and the jacking piece accommodated in the fluted chamber; and the fluted chamber is composed of the total areas occupied by each embedding hole extending into the fluted chamber and intersected adjacent surfaces, thereby forming the ratchet wrench main body.

Description

technical field [0001] The invention relates to a ratchet wrench, in particular to a body structure and a manufacturing method of the ratchet wrench. Background technique [0002] Such as Figure 9-10 As shown, two kinds of known ratchet wrench bodies 8, 9 have a perforation 80, 90 for accommodating a ratchet at one end respectively, and a perforation 80, 90 adjacent to this perforation 80, 90 can be provided for accommodating a catch block. Chamber 81, 91, and inboard of this chamber 81, 91 goes deep into a groove chamber 82, 92 for accommodating top catch member and elastic member. [0003] The first kind of known ratchet wrench body 8, in the molding of this groove chamber 82 such as Figure 9 As shown, the drill bit 83 is formed by drilling in the horizontal direction from one end of the ratchet wrench body 8 by drilling, but this processing method will leave a hole 84 at one end of the ratchet wrench body 8. This hole 84 is not only used for processing It must be fill...

AI Technical Summary

Problems solved by technology

[0003] The first kind of known ratchet wrench body 8, in the molding of this groove chamber 82 such as Figure 9 As shown, the drill bit 83 is formed by drilling in the horizontal direction from one end of the ratchet wrench body 8 by drilling, but this processing method will leave a hole 84 at one end of the ratchet wrench body 8. This hole 84 is not only used for processing It must be filled afterwards, and the ratchet wrench body 8 has caused structural damage when the hole is formed, so that the ratchet wrench body 8 has the problem of reduced structural strength

[0004] The second known ratchet wrench body 9, such as Figure 10 As shown, the forming groove chamber 92 puts the drill bit 93 from the through hole 90 in an oblique manner, and drills out the groove chamber 92. The groove chamber 92 is inclined relative to the ratchet wrench body 9. Although this processing method There is no need to leave a hole that destroys the structure on the ratchet wrench body 8, but it is difficult to drill holes in an inclined manner, and when the thickness of the ratchet wrench body 8 is thinner, it is more difficult to drill holes, and because of the accommodating top The groove chamber 92 of the catch piece and the elastic piece is inclined, so when the push piece is pressed against by the elastic piece, it also leans against the catch block obliquely, which easily makes the push force of the push piece insufficient, making it difficult for the push piece to be pushed. toggle question

[0005] After the groove chambers 82, 92 of the above-mentioned two ratchet wrench bodies 8, 9 are formed in the above-mentioned manner, impurities are likely to remain in the groove chambers 82, 92 during the processing, and the positions of the groove chambers 82, 92 are relatively hidden. If there are impurities in the tank chambers 82 and 92 that are installed with elastic parts and top catches, it is easy to cause the blocked catch block to move unsmoothly due to the influence of impurities. At this time, if you want to clean Impurities in the tank chambers 82, 92 cannot be cleaned

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