TW201515776A - Improved structure of penetrating ratchet wrench - Google Patents

Abstract

An improved structure of penetrating ratchet wrench has a wrench body provided therein with a ratchet. The ratchet is penetratingly provided with a polygonal sleeving hole for sleeving a socket. One end of the ratchet is protrudingly provided with a first neck. When the outer peripheral surface of the first neck is processed to form an annular groove with a predetermined depth, a bent flat spring is formed at the same time on each corner of the sleeving hole respectively. Accordingly, when a user engages the socket to the sleeving hole, the flat springs can form elastic block to the joint head of the socket so as to limit the socket in the sleeving hole. Moreover, the flat spring can be elastically engaged at the outer circumferential wall of the socket to clamp and fix the socket to the wrench body.

Description

Improved structure of penetrating ratchet wrench

The present invention relates to an improved structure of a penetrating ratchet wrench, and more particularly to a penetrating ratchet wrench that is easy to manufacture and has a low production cost.

A penetrating ratchet wrench is often used to lock or loosen a bolt. Referring to Figures 1 and 2, it is an exploded perspective view of a conventional penetrating ratchet wrench and a part of the combined sleeve. In a cross-sectional view, the conventional penetrating ratchet wrench has a wrench body 1 having a head 2 with a ratchet 3 pivoted therein, the ratchet 3 having a first end 4 And a second end portion 5, the first end portion 4 protrudes from the wrench body 1 while engaging a dial 6 , and the ratchet wheel 3 is provided with a polygonal sleeve hole 7 for fixing one a sleeve 40, and the sleeve 40 has a joint portion 41. The inner peripheral wall of the sleeve hole 7 is provided with a card slot 8 corresponding to the first end portion 4, and the card slot 8 receives a C-shaped buckle. a ring, and an outer peripheral wall of the second end portion 5 of the ratchet 3 is provided with an abutting portion, whereby when the sleeve 40 is engaged with the sleeve hole 7, the C-shaped buckle 9 will elastically abut against The joint portion 41 of the sleeve 40 can achieve the effect of the limit to ensure that the sleeve 40 does not shift in the sleeve hole 7 during the operation of the user. .

However, since the ratchet wheel 3 of the conventional penetrating ratchet wrench needs to process the card slot 8 in the socket hole 7, and the card slot 8 must be accommodated in the C-shaped buckle ring 9, the sleeve can be limited. The sleeve 40, if the C-shaped buckle 9 is removed, the conventional penetrating ratchet wrench cannot limit the sleeve 40, and the sleeve 40 is easy to fit the sleeve hole 7 during the operation of the user. Internal displacement, and the force of the sleeve 40 cannot be smoothly applied. Moreover, the conventional penetrating ratchet wrench needs to increase the cost of manufacturing the C-shaped buckle 9 and the C The long-term use of the buckle 9 is easy to be detached from the groove and is stuck. Therefore, how to provide an easy-to-manufacture, low cost, and quick assembly, and does not have the C-shaped buckle 9 for stability The structure of the elastic ratcheting and the penetrating ratchet wrench of the sleeve 40 is such that after the inventors of the present invention observe the above disadvantages, it is considered that the conventional penetrating ratchet wrench is further improved, and The invention is produced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved structure of a penetrating ratchet wrench that is easy to manufacture and that is relatively inexpensive to produce and that is securely coupled to the sleeve.

In order to achieve the above object, an improved structure of a penetrating ratchet wrench provided by the present invention is provided with a wrench body, and one end of the wrench body is formed with a head, and one side of the head is recessed to provide a capacity. The first side of the head is provided with a first through hole communicating with the receiving groove; and a ratchet is disposed in the receiving groove, and the ratchet is disposed in the axial direction The first neck portion and the second neck portion are respectively protruded from the end portion, and the first neck portion is disposed in the first through hole, and the ratchet sleeve is disposed in the receiving groove, and the upper edge of the ratchet wheel The first through hole is axially disposed with a polygonal sleeve hole, and the ratchet is provided with a ring groove of a predetermined depth at the outer ring surface of the first neck portion, and at the same time, each of the sleeve holes is A curved elastic piece is formed in the lateral direction at the corners, and the curved portion of the elastic piece protrudes from the inner peripheral wall of the socket, thereby forming an elastic stopper; and a back cover is provided on the cover The outer side of the accommodating body is provided with a second through hole, and the back cover is provided with a second through hole The perforations made in the second set of restrictions of the neck portion of the ratchet.

The improved structure of the penetrating ratchet wrench provided by the present invention is configured to elastically stop the circumference of the sleeve head when the user wears a sleeve through the sleeve hole. The sleeve can be fixed in the sleeve hole to ensure that the socket of the ratchet can limit the linear displacement of the sleeve during the operation of the wrench body by the user, and the joint portion of the sleeve If the ratchet protrudes, The elastic piece is configured to elastically clamp the outer peripheral wall of the sleeve, whereby the penetrating ratchet wrench of the present invention is not used for providing the C-shaped buckle in the socket, so that the elastic stop can be used and the sleeve can be locked. The cylinder can not only achieve the effect of easy processing and manufacturing and reduce the production cost, but also can effectively improve the shortcomings of the conventional C-shaped buckle of the penetrating ratchet wrench when it is used for a long time.

[知知]

1‧‧‧Wrench body

2‧‧‧ head

3‧‧‧ratchet

4‧‧‧ first end

5‧‧‧second end

6‧‧ ‧ dial

7‧‧‧ sockets

8‧‧‧ card slot

9‧‧‧C-shaped buckle

[this invention]

10‧‧‧Wrench body

11‧‧‧Handle

12‧‧‧ head

13‧‧‧ accommodating slots

14‧‧‧First perforation

20‧‧‧ratchet

21‧‧‧ ratchet

22‧‧‧First neck

23‧‧‧ Second neck

24‧‧‧ socket

25‧‧‧ Ring groove

26‧‧‧Shrap

261‧‧‧ fixed end

262‧‧‧Free end

263‧‧‧elastic stop

30‧‧‧Back cover

31‧‧‧Second perforation

40‧‧‧ sleeve

41‧‧‧Connector

42‧‧‧掣面面

43‧‧‧ card slot

50‧‧‧C-shaped buckle

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

Figure 2 is a partial cross-sectional view showing a conventional penetrating ratchet wrench in combination with a sleeve.

Figure 3 is an exploded perspective view of a preferred embodiment of the present invention.

Figure 4 is a top view of a ratchet in accordance with a preferred embodiment of the present invention.

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

Figure 6 is a schematic illustration of the use of a preferred embodiment of the present invention.

Figure 7 is a schematic view showing the use of the second embodiment of the present invention.

Fig. 8 is an exploded perspective view showing the ratchet and the C-shaped buckle of the third embodiment of the present invention.

Figure 9 is a top view of the ratchet of the third embodiment of the present invention.

Please refer to FIG. 3, FIG. 4, and FIG. 5, which are exploded perspective views, a top view of a ratchet, and a partial cross-sectional view of a preferred embodiment of the present invention, showing an improved structure of a penetrating ratchet wrench. The penetrating ratchet wrench mainly includes a wrench body 10 having a handle 11 and a head 12 formed at one end of the handle 11 while one side of the head 12 is recessed. There is a receiving groove 13 , and the other side of the head 12 is provided with a first through hole 14 communicating with the receiving groove 13 .

A ratchet 20 has a cylindrical shape, and a peripheral ring is provided with a ratchet 21, and the ratchet 20 is disposed in the receiving groove 13, and the ratchet 20 is along A first neck portion 22 and a second neck portion 23 are respectively protruded from the two ends of the axial direction. The first neck portion 22 is disposed in the first through hole 14 , and the ratchet wheel 20 is sleeved to the end. In the slot 13 , the ratchet 20 is provided with a polygonal sleeve hole 24 along the axial direction of the first through hole 14 , and the inner peripheral wall of the sleeve hole 24 has a plurality of joint faces and two phases. A groove is formed in the axial direction at an end corner of the adjoining joint surface, and the ratchet wheel 20 is machined along the outer surface of the first neck portion 22 to form a ring groove 25, and when the ring groove 25 is formed, the ring groove 25 is formed. At a predetermined depth, the bottom of the ring groove 25 is formed with an elastic piece 26 bent inwardly at the respective end corners of the sleeve hole 24, and the bent portion of the elastic piece 26 is slightly protruded from the socket hole. The inner peripheral wall of the inner wall 24 further defines a resilient stop portion 263. The elastic piece 26 has a fixed end 261 and a free end 626. The fixed end 261 is connected to the annular groove 25 of the ratchet 20, and the elastic piece is 26 Because of the direction of rotation during lathe processing, the free ends 626 of the springs 26 are all extended in the same direction.

A back cover 30 is disposed on the outer side of the receiving slot 13 of the wrench body 10, and the back cover 30 is provided with a second through hole 41, so that the back cover 30 is sleeved by the second through hole 41. Located at the second neck 23 of the ratchet 20.

The improved structure of the penetrating ratchet wrench of the present invention is first assembled to the first neck 22 of the ratchet 20 corresponding to the first through hole 14 and the first neck 22 is disposed in the first through hole 14 And the second through hole 41 of the back cover 30 is sleeved to the second neck portion 23, and the back cover 30 is attached thereto. The outer end surface of the head 12, whereby the assembly of the penetrating ratchet wrench can be accomplished.

In order to further understand the structural features of the present invention, the application of the technical means, and the intended effect, the manner of use of the present invention will be described. It is believed that the invention can be more deeply and specifically understood as follows: Referring to FIG. 6, a preferred embodiment of the present invention is shown. For example, when the user wants to attach a sleeve 40 to the wrench body 10, the elastic piece 26 is attached to the ratchet wheel 20, and the elastic stop portion 263 of the elastic piece 26 is slightly omitted. The inner peripheral wall of the sleeve hole 24 is protruded, so that the user can directly insert the sleeve 40 into the sleeve hole 24 of the ratchet wheel 20, and the elastic stop portion 263 of the elastic piece 26 stops the sleeve. The joint portion 41 of the sleeve 40 is further fixed in the sleeve hole 24 of the ratchet wheel 20 to ensure that the sleeve hole 24 of the ratchet wheel 20 is not in the process of operating the wrench body 10 by the user. Displacement occurs along the outer peripheral wall of the sleeve 40. When the joint portion 41 of the sleeve 40 protrudes from the ratchet 20 and is higher than the position of the elastic stop portion 263 of the elastic piece 26, the elastic pieces 26 are The outer peripheral wall of the sleeve 40 is elastically clamped, and the sleeve 40 is clamped in the sleeve hole 24 of the ratchet 20 .

Please refer to FIG. 7 , which is a schematic diagram of the second embodiment of the present invention. In the embodiment, the sleeve 40 is more stable in the socket hole 24 of the ratchet 20 , wherein The outer peripheral wall of the sleeve 40 has a plurality of splaying surfaces 42, and a card slot 43 is disposed at an end angle between the adjacent two swaying surfaces 42. The card slots 43 are disposed at the same height, and the ratchet wheel 20 has a plurality of elastic pieces 26, and when the sleeve holes 24 are engaged with the sleeve 40, the elastic stoppers 263 of the elastic pieces 26 are latched in the slots 43 of the sleeve 40, and the sleeve 40 is further The latching position of the elastic stoppers 263 is fixed, and the elastic stoppers 263 of the elastic pieces 26 are locked in the slots 43 of the sleeve 40, thereby ensuring that the sleeve 40 can be secured. The socket 40 is sleeved in the ratchet wheel 20 of the wrench body 10, and the sleeve 40 is not detached from the wrench body 10 during the operation of the user.

8 and 9 are an exploded perspective view of the ratchet and the C-shaped buckle of the third embodiment of the present invention and a top view of the ratchet. In this embodiment, the ring groove 25 of the ratchet 20 is The C-shaped buckle 50 is inserted into the C-shaped buckle 50, and the C-shaped buckle 50 elastically abuts the elastic pieces. 26, and can increase the strength of the elastic piece 26, and when the wrench body 10 is used to lock or loosen the sleeve 40 for a long time, the C-shaped buckle 50 can prevent the elastic pieces 26 from being generated due to long-term use. The case of deformation or breakage.

Further, the features of the present invention and the achievable expected effects thereof are as follows: the improved structure of the penetrating ratchet wrench of the present invention, since the elastic sheets are formed by processing the ring groove, and the elastic pieces have the An elastic stop portion for elastically locking and locking the sleeve, the function of which is equivalent to the C-shaped buckle of the conventional penetrating ratchet wrench, thereby making the wearing of the present invention The penetrating ratchet wrench is not used for processing the inner ring groove in the ratchet and is accommodated in the C-shaped buckle, so that the elastic stop can be achieved and the sleeve can be locked.

The improved structure of the penetrating ratchet wrench of the present invention, wherein the shrapnel is formed by processing, so that it is not only difficult to manufacture but also easy to manufacture and manufacture, and can be assembled quickly, saving assembly time. effect.

The improved structure of the penetrating ratchet wrench of the present invention, when the user engages a sleeve to the sleeve hole, the elastic stop portion of the elastic piece will elastically stop at the joint portion of the sleeve, but Fixing the sleeve in the socket of the ratchet to ensure that the socket of the ratchet does not displace along the outer wall of the sleeve during operation of the wrench body. When the sleeve of the sleeve protrudes from the sleeve hole, the elastic sheets are elastically clamped and can be used to clamp the sleeve.

In the second embodiment of the improved structure of the penetrating ratchet wrench of the present invention, the plurality of swaying faces are mainly disposed on the outer peripheral side of the sleeve, and the cards are disposed at the corners of the adjacent two raking faces. a slot, and the elastic stop of the elastic piece is slidable in the slot of the sleeve, so that the sleeve is embedded in the socket of the ratchet, thereby utilizing the elastic stop of the elastic piece The part is stuck in the slot of the sleeve, which not only ensures the The sleeve can be stably sleeved in the sleeve hole, and the convenience of the lifting tool is effectively achieved.

In a third embodiment of the improved structure of the penetrating ratchet wrench of the present invention, the ring groove system is mainly adapted to be received in the C-shaped buckle, and the elastic buckle of the C-shaped buckle is used to abut the same. The shrapnel, in turn, increases the strength of the shrapnel, thereby avoiding the advantages of deformation or breakage of the shrapnel during long-term use.

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.

10‧‧‧Wrench body

11‧‧‧Handle

12‧‧‧ head

13‧‧‧ accommodating slots

14‧‧‧First perforation

20‧‧‧ratchet

21‧‧‧ ratchet

22‧‧‧First neck

23‧‧‧ Second neck

24‧‧‧ socket

25‧‧‧ Ring groove

26‧‧‧Shrap

30‧‧‧Back cover

31‧‧‧Second perforation

Claims (4)

The improved structure of the penetrating ratchet wrench has a wrench body, the front end of the wrench body is formed with a head, the head is recessed with a receiving groove, and the other side of the head is provided with a a first through hole communicating with the accommodating groove, wherein the accommodating hole receives a ratchet wheel, and the ratchet wheel is bored with a polygonal sleeve hole along the axial direction of the first through hole, and the main feature is The ratchet is provided with a first neck portion at an upper edge of the ratchet wheel in the axial direction, and a ring groove is formed on the outer peripheral wall of the first neck portion, and at each end corner of the sleeve hole A curved elastic piece is formed in the lateral direction, and the elastic piece protrudes from the inner peripheral wall of the socket hole, and the elastic piece has a fixed end and a free end, and the fixed end is connected to the bottom of the ring groove. Therefore, when the user engages a sleeve to the sleeve hole, the elastic sheets will elastically stop at the joint portion of the sleeve, thereby restricting displacement of the sleeve in the sleeve hole. Moreover, the shrapnel can produce an elastic card for the outer peripheral wall of the sleeve, and The sleeve is fixed to the wrench main body, to ensure that during the operation of the user, the sleeve will not fall off of the socket hole. The improved structure of the penetrating ratchet wrench according to claim 1, wherein each of the elastic pieces is curved in a same direction toward the inner side of the sleeve hole, and the curved portion forms an elastic stop. unit. The improved structure of the penetrating ratchet wrench according to the first aspect of the invention, wherein the inner peripheral wall of the socket has a plurality of joint faces, and the end corners of the adjacent joint faces are along the axis of the sleeve hole A groove is provided for each direction. The improved structure of the penetrating ratchet wrench according to claim 1, wherein the ring groove is adapted to receive a C-shaped buckle, and the C-shaped buckle is used to increase the strength of the elastic piece. .