TWI547350B - Ratchet wrench structure - Google Patents

Description

Ratchet wrench structure

The present invention relates to a ratchet wrench, and more particularly to a ratchet wrench structure.

Please also refer to FIG. 1 and FIG. 2 , which are an exploded perspective view and a cross-sectional view of a conventional ratchet wrench. The ratchet wrench is provided with a slot 1 in one end thereof, and a ratchet 2 is disposed in the slot 1 . 2, the side ring is provided with gear teeth, and the groove 1 is pivotally provided with a dialing member 3, and the receiving groove 1 is slidably disposed between the ratchet wheel 2 and the dialing member 3, and a latching block 4 is disposed thereon. The latching block 4 is provided with teeth on the side of the ratchet 2, and the teeth of the ratchet 2 mesh with the teeth of the latching block 4, and the other side of the latching block 4 is provided with two recesses 5 The latching member 3 is provided with a limiting slot 6 , an abutting block 7 and an elastic member 8 . The closed end of the limiting slot 6 is connected to the abutting block 7 through the elastic member 8 . The abutment block 7 is pushed against the cassette block 4.

Thereby, the latching block 4 can be pressed against the elastic member 8 by the force of the ratchet 2 to be rotated by the abutting block 7 so that the latching block 4 can be caused by the latching block 4 The elastic member 8 is telescopically reciprocated, and when the user rotates the dialing member 3, the elastic member 8 is selectively pushed against one of the recessed portions 5 by the abutting block 7 while making one of the corresponding ones of the latching blocks 4. The side wall abuts against the inner wall of the pocket 1. Since the ratchet 2 is limited to the latching block 4, the ratchet 2 can be rotated only clockwise or counterclockwise, so that the dial 3 can be controlled. The effect of the ratchet 2 one-way drive.

However, the ratio of the area of the abutting surface of the abutting block 7 to the area of the recessed portion 5 is too large, and the position of the abutting block 7 against the recessed portion 5 is not good, when the latching block 4 is subjected to When the ratchet 2 rotates, the latching block 4 biases the abutting block 7 and the elastic member 8 to make the ratchet wrench structure have the doubts of stopping the operation and structural damage during use, and further The ratchet wrench structure has too many components, and there are problems such as an increase in manufacturing cost, a large number of assembly procedures, and the like. In view of the above, the inventors of the present invention have observed that the above-mentioned shortcomings are considered to be necessary for further improvement of the existing ratchet wrench structure, and the present invention has been produced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ratchet wrench structure that simplifies the number of components of the ratchet wrench structure while further improving the insufficient support of the spring member to the latch block.

In order to achieve the above object, the ratchet wrench structure of the present invention comprises a body, one end of which is an active end, the working end is provided with a receiving slot and a slot, and a ratchet is disposed in the receiving slot. The ratchet side ring is provided with gear teeth, and a stopping groove is formed between the receiving groove and the slot, so that the receiving groove, the stopping groove and the slot communicate with each other, and a sliding groove is arranged in the stopping groove a block is provided with a tooth on a side of the latch block adjacent to the ratchet block, and the other side of the latch block is provided with two longitudinally parallel recesses, and the recessed portion is equal to the latch block, and the plug is inserted The slot is pivotally provided with a dialing member, and the dialing member is provided with a limiting slot corresponding to the recessed portion. The limiting slot is a rectangular recess having a longitudinal direction and a long side, and an elastic is further disposed in the limiting slot. The elastic member has a rectangular shape corresponding to the limiting groove, and the longitudinal height of the elastic member substantially corresponds to the height of the concave portion.

The ratchet wrench structure provided by the present invention, when the elastic member is selectively pushed against one of the recessed portions, further longitudinally the front edge of the elastic member can be evenly pushed against the recessed portion, so that the latching block can be generated with the ratchet a better meshing effect, and when the latching block is forced to rotate by the ratchet, the latching block can be evenly urged against the elastic member, so that the latching block can be expanded and contracted by the elastic member. Reciprocating movement, thereby enabling the elastic member to have more comprehensive support for the clamping block, Further, the clamping block applies a more uniform force to the elastic member, and at the same time simplifies the number of components of the ratchet wrench structure.

(known)

1‧‧‧ 容容

2‧‧‧ratchet

3‧‧‧WD parts

4‧‧‧ card block

5‧‧‧Depression

6‧‧‧Limited slot

7‧‧‧The top block

8‧‧‧Flexible parts

(this invention)

100‧‧‧ Ratchet wrench structure

10‧‧‧ Ontology

11‧‧‧ 容容

12‧‧‧ slots

13‧‧‧stop groove

14‧‧‧ Cover

15‧‧‧Perforation

16‧‧‧Limited area

20‧‧‧ratchet

30‧‧‧ card block

31‧‧‧Depression

40‧‧‧WD parts

41‧‧‧Limited slot

42‧‧‧Flexible parts

421‧‧ ‧ spring

43‧‧‧ recess

44‧‧‧Toggle lever

Figure 1 is an exploded perspective view of a conventional ratchet wrench.

Figure 2 is a cross-sectional view of a conventional ratchet wrench.

Figure 3 is a perspective view of the present invention.

Figure 4 is an exploded perspective view of the present invention.

Figure 5 is a cross-sectional view of the present invention.

Figure 6 is a schematic view of the use of the present invention to show the state in which the toggle member controls the ratchet to rotate only clockwise.

Figure 7 is a schematic view of the use of the present invention to show the state in which the dial member controls the ratchet to rotate only counterclockwise.

Figure 8 is a cross-sectional view of the present invention to show the state in which the click block is subjected to an average of the ratchet and the elastic member.

As shown in FIG. 3 to FIG. 5 , a ratchet wrench structure 100 includes a body 10 having an active end and a slot 11 and a slot 12 therein. A blocking groove 13 is defined between the receiving slot 11 and the slot 12, and the receiving slot 11, the stopping slot 13 and the slot 12 are communicated with each other, and a cover 14 is collectively covered. 14 and the body 10 are further provided with a through hole 15, wherein the slot 12 is cylindrical, and The surface of the body 10 is further provided with a limiting area 16.

A ratchet wheel 20 is disposed in the pocket 11 and the ratchet wheel 20 is provided with teeth on the side ring, and the ratchet wheel 20 is exposed to the body 10 through the through holes 15 .

a latching block 30 is slidably disposed in the retaining slot 13 , and a tooth is disposed on a side of the latching block 30 adjacent to the ratchet 20 , and the other side of the latching block 30 is provided with two longitudinally juxtaposed The recessed portion 31 is equal to the latching block 30.

A dial member 40 is pivotally disposed on the slot 12, and the dial member 40 is provided with a limiting slot 41 corresponding to the recessed portion 31. The limiting slot 41 is a rectangular recess having a longitudinal direction and a long side. An elastic member 42 is further disposed in the limiting slot 41. The elastic member 42 also has a rectangular shape corresponding to the limiting slot 41, and the longitudinal height of the elastic member 42 substantially corresponds to the height of the recessed portion 31. The member 42 is a spring 421, wherein the dial member 40 is respectively provided with a recess 43 on the periphery of the retaining slot 41 corresponding to the periphery of the latching block 30, so that the dial member 40 can be rotated without interference. The top surface of the dialing member 40 is exposed on the limiting portion 16 of the surface of the body 10, and a top surface of the dialing member 40 is provided with a toggle lever 44, so that the toggle lever 44 can be limited thereto. The bit area 16 is toggled to control the left and right rotation of the dial member 40.

For a further understanding of the structural features of the present invention, the application of the technical means, and the intended effect, the present invention will be described. It is believed that the present invention may be further understood and understood as follows: As shown in FIG. 6 , the latching block 30 can be biased against the spring 421 by the rotation of the ratchet 20 , so that the latching block 30 can reciprocate due to the expansion and contraction of the spring 421 . mobile.

Please refer to FIG. 6 again, when the toggle member 40 is rotated to the right, the bullet is made. The spring 421 is pushed against the latching block 30, and the latching block 30 is slid to the right in the stopping slot 13, so that the leading edge of the spring 421 is pushed against the corresponding periphery of the recessed portion 31, and the latch is caused. One side wall of the block 30 pushes against the inner wall of the stopping groove 13 , whereby the ratchet wheel 20 is only rotated clockwise because the ratchet wheel 20 is restricted by the latching block 30, so that the dialing member can be borrowed 40 controls the effect that the ratchet 20 can only rotate clockwise.

Referring to FIG. 7 again, when the dial member 40 is rotated to the left, the spring 421 is pushed against the latching block 30, and the latching block 30 is slid to the left in the stopping slot 13 so that The leading edge of the spring 421 is pushed against the peripheral edge of the corresponding recessed portion 31, and a corresponding side wall of the latching block 30 is pushed against the inner wall of the blocking slot 13 , whereby the ratchet 20 is limited by the The latching block 30 allows the ratchet 20 to rotate only counterclockwise, so that the ratchet 20 can be controlled to rotate counterclockwise only by the dialing member 40.

Referring to FIG. 8 again, since the height of the trap slot 41 and the longitudinal direction of the spring 421 substantially corresponds to the height of the recess 31, when the latch block 30 is simultaneously pushed by the spring 421 and the ratchet 20 The longitudinal direction of the front edge of the spring 421 can be evenly pushed against the recessed portion 31, so that the latching block 30 can have a better meshing effect with the ratchet wheel 20, and the ratchet wheel 20 can pass through the ratchet wheel 20 when the ratchet wheel 20 rotates. The latching block 30 applies a force to the spring 421. The spring 421 can support the latching block 30 more comprehensively, so that the ratcheting wheel 20 can apply an average force to the latching block 30, and the latching block 30 can be further The spring 421 is biased more evenly while the number of components of the ratchet wrench structure 100 is more streamlined than the conventional ratchet wrench described above.

Further, the features of the present invention and the achievable expected effects thereof are set forth as follows: The ratchet wrench structure 100 of the present invention further advances the front edge of the elastic member 42 when the elastic member 42 is selectively pushed against one of the recessed portions 31. The longitudinal direction can be evenly pushed against the depression 31, which further enables the latching block 30 to have a better meshing effect with the ratchet 20, and when the latching block 30 is subjected to the rotation of the ratchet 20, the latching block 30 can be evenly biased. Pushing the elastic member 42 to reciprocate the latch member 30 by the expansion and contraction of the elastic member 42 , thereby allowing the elastic member 42 to support the latch block 30 more comprehensively, further enabling the latch Block 30 applies a more uniform force to the resilient member 42 while simplifying the number of components of the ratchet wrench structure 100.

In summary, the present invention has excellent advancement and practicability in similar products, and at the same time, the technical materials of such structures are frequently investigated at home and abroad, and the same structure is not found in the literature. The invention already has the invention patent requirements, and the application is filed according to law.

However, the above-mentioned ones are merely preferred embodiments of the present invention, and the equivalent structural changes of the present invention and the scope of the claims are intended to be included in the scope of the present invention.

100‧‧‧ Ratchet wrench structure

10‧‧‧ Ontology

11‧‧‧ 容容

12‧‧‧ slots

14‧‧‧ Cover

15‧‧‧Perforation

16‧‧‧Limited area

20‧‧‧ratchet

30‧‧‧ card block

31‧‧‧Depression

40‧‧‧WD parts

41‧‧‧Limited slot

42‧‧‧Flexible parts

421‧‧ ‧ spring

43‧‧‧ recess

44‧‧‧Toggle lever

Claims (4)

The utility model relates to a ratchet wrench structure, which comprises a body, one end of which is an active end, the working end is provided with a receiving groove and a slot, and a ratchet is arranged in the receiving groove, and the ratchet side ring is provided with gear teeth. A slot is formed between the slot and the slot, the slot, the stop slot and the slot are communicated with each other, and a latching block is disposed in the slot, adjacent to the latch block The ratchet side is provided with gear teeth, and the other side of the latching block is provided with two longitudinally standing recessed portions, and the recessed portion is equal to the latching block, and the main feature is: a dialing member The pivoting member is disposed in the slot, and the limiting member is provided with a limiting slot corresponding to the recessed portion. The limiting slot is a rectangular recess having a longitudinal direction and a long side, and an elastic member is further disposed in the limiting slot. The elastic member has a rectangular shape corresponding to the limiting groove, and the longitudinal height of the elastic member substantially corresponds to the height of the concave portion; thereby, the elastic member further elasticizes the elastic portion when selectively pushing against one of the concave portions The front edge of the piece can be evenly pushed against the recess, so that the block can be generated with the ratchet The engaging effect is good, and when the latching block is subjected to the rotation of the ratchet, the latching block can be evenly urged against the elastic member, so that the latching block can reciprocate due to the expansion and contraction of the elastic member. mobile. The ratchet wrench structure according to claim 1, wherein a top surface of the dial member is exposed on the surface of the body, and a top surface of the dial member is provided with a toggle lever. According to the ratchet wrench structure of claim 1, wherein the dialing member is provided with a recess on each of the two sides of the limiting slot corresponding to the latching block, so that the dialing member does not rotate when rotated. Interference. The ratchet wrench structure according to claim 1, wherein the elastic member is a spring.