TW201529241A - Ratchet wrench with replaceable tool head - Google Patents

Abstract

A ratchet wrench with replaceable tool head comprises a wrench body concavely disposed with a receiving slot at the front end. The receiving slot is formed with a first through hole and a tool head having outer peripheral surface with a ratchet. The tool head is surroundingly provided with a groove, and is further provided with a toggle block at one side. Two sides of the toggle block are respectively provided with a toggle plate formed with a ratchet at the front end and an engagement block corresponding to the groove. Accordingly, the toggle block can be toggled and turned to change the ratchet engagement selection of the toggle plate, thereby controlling the engagement block to be disposed in the groove to form engagement. When the engagement blocks are not located in the groove, the tool head can be removed and replaced from the receiving slot, thereby enabling this invention to have the advantages of replaceability, reduced manufacturing costs and simple structure.

Description

Ratchet wrench for changeable tool head

The invention relates to a ratchet wrench for a replaceable tool head, in particular to a replaceable tool head and a ratchet wrench with two-way control.

According to the conventional ratchet wrench, it is a hand tool that allows the user to quickly tighten or loosen the bolt or nut. The conventional ratchet wrench, such as the approval of the Bureau of Public Notice, No. 91201291, "Modification of the structure of the reversing ratchet wrench" The present invention has a wrench body, and the wrench system has a head portion, and the head portion is provided with an accommodating space, and the accommodating space is provided with a ratchet gear, and the accommodating space is further recessed. The accommodating slot is provided with a receiving hole communicating with the accommodating groove in the longitudinal direction. The accommodating hole is provided with a plucking member, and the ejector member is provided with a spring pin to elastically resist The ratchet block is topped, and the switch body is provided with a switch switch corresponding to the dial member, and the switch-on relationship can interlock the dial member to push the ratchet block to change the relationship between the ratchet block and the ratchet gear .

However, the above-mentioned conventional ratchet wrench is missing:

One: the conventional ratchet wrench can only be used for one or two sizes, so the user needs to prepare various ratchet wrenches to meet different needs.

Secondly, the structure of the conventional ratchet wrench is more complicated, and the processing difficulty is higher, and the process cost is further.

In view of this, a manufacturer has developed a ratchet wrench that can replace a ratchet gear. For example, the invention patent of the ratchet wrench replacement structure No. 098112746 is mainly added to the ratchet wrench. a fixing seat and a cover piece, wherein the fixing seat fixes the spring pin, and a limiting protrusion is protruded from the ratchet block, and the ratchet gear corresponds to the limit convex The block ring is provided with a limit ring groove, and the limit protrusion is disposed in the limit ring groove to limit the ratchet gear, so when the user switches the switch, the bump moves inward and separates When the limit ring groove is received, the ratchet gear can be taken out from the accommodating space, and the ratchet gear can be replaced by the user, but the ratchet wrench of the replaceable ratchet gear needs to be added with the fixing seat and the cover piece, and The cover sheet is formed with a push gap and a release gap corresponding to the switch, and the switch can be switched. Therefore, the ratchet wrench of the replaceable ratchet gear is further complicated in structure, complicated in assembly work, and difficult to process. The disadvantage of high manufacturing cost and high manufacturing cost is that after the above-mentioned shortcomings are observed, the inventors of the present invention believe that the conventional ratchet wrench and the existing ratcheting ratchet of the replaceable ratchet gear are further improved, and the invention is produced. .

SUMMARY OF THE INVENTION The object of the present invention is to provide a ratchet wrench for a replaceable tool head which is convenient for the user to replace the tool head and has a ratchet wrench that is simple in construction, easy to assemble, has low processing difficulty, and is low in manufacturing cost.

In order to achieve the above objective, the ratchet wrench of the replaceable tool head of the present invention comprises: a wrench body, the front end of the wrench body is recessed with a receiving groove, and the bottom of the receiving groove is provided with a first a piercing tool head, the ratcheting tool head is longitudinally disposed in the receiving groove, and the tool head ring is provided with a groove; the second picking piece is provided with a ratchet at the front end thereof, and The picking tabs are disposed in the receiving groove, and the ratcheting system can be engaged with the tool head, and the picking tabs further protrude with a locking block, and the engaging blocks can be correspondingly disposed In the groove, a dial block is disposed in the accommodating groove and disposed between the paddles; and two springs are respectively disposed on the side of the paddle and the accommodating groove And elastically offset the picks.

The ratchet wrench of the replaceable tool head provided by the present invention, when the user dials the dial block and presses against one of the paddles, the paddle is engaged with the tool head, and the card block can be placed Provided in the groove of the tool head, and the user can use the tool head of the wrench body, and when the dial block is pressed against the paddles, the paddles are not mutually interacting with the tool head Contacting, and at the same time, the card block separates the groove, and at this time, the tool head can be taken out from the receiving groove, thereby The ratchet wrench of the replaceable tool head of the present invention mainly adopts the relationship that the card block of the paddles can be disposed in the groove, and the pressing relationship between the dial block and the paddles, and further The user can control and replace the tool head, so the invention has the advantages of simple structure, easy assembly, low processing difficulty and low manufacturing cost.

10‧‧‧Wrench body

11‧‧‧Handle

12‧‧‧ head

13‧‧‧ accommodating slots

131‧‧‧ Groove

14‧‧‧First perforation

15‧‧‧through holes

16‧‧‧Axis hole

17‧‧‧Second positioning parts

171‧‧‧ round slot

1711‧‧‧ openings

172‧‧‧ steel balls

173‧‧ ‧ spring

20‧‧‧Tool head

21‧‧‧ ratchet

22‧‧‧Bump

23‧‧‧Card Department

24‧‧‧ trench

25‧‧‧First positioning piece

251‧‧‧ round groove

2511‧‧‧ openings

252‧‧‧ steel balls

253‧‧ ‧ spring

30‧‧ ‧ picks

31‧‧‧ ratchet

32‧‧‧Card block

33‧‧‧ pivoting department

34‧‧‧ Spring

40‧‧‧ Swipe block

41‧‧‧ screw holes

42‧‧‧

421‧‧‧through holes

422‧‧‧ Groove

43‧‧‧Fixed parts

50‧‧‧Back cover

51‧‧‧Second perforation

52‧‧‧ screw holes

53‧‧‧through holes

54‧‧‧ screws

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is an exploded perspective view of a preferred embodiment of the present invention.

Figure 3 is a transverse cross-sectional view of a preferred embodiment of the present invention to show that the card block is not disposed in the trench.

Figure 4 is a schematic view of the use of a preferred embodiment of the present invention to show the aspect of the tool head separating the wrench body.

Figure 5 is a transverse cross-sectional view of a preferred embodiment of the present invention to show the manner in which the dial block abuts the right paddle.

Figure 6 is a transverse cross-sectional view of a preferred embodiment of the present invention to show the manner in which the dial block abuts the left paddle.

Figure 7 is a longitudinal cross-sectional view of a preferred embodiment of the present invention to show the manner in which the card block is placed in the groove.

Figure 8 is a longitudinal cross-sectional view showing a second embodiment of the present invention.

Referring to Figures 1, 2, 3, and 5, a perspective view, an exploded perspective view, a transverse cross-sectional view, and a longitudinal cross-sectional view of a preferred embodiment of the present invention are disclosed as a ratchet wrench of a replaceable tool head. The wrench body includes: a wrench body 10 having a handle 11 and a head 12 formed at one end of the handle 11 while a receiving groove 13 is recessed on one side of the head 12 The other side of the head 12 is provided with a first through hole 14 communicating with the receiving groove 13 and, in turn, close to the first The through hole 14 has a through hole 15 extending in the longitudinal direction, and the top surface of the wrench body is further provided with a shaft hole 16 , and the inner peripheral wall of the receiving groove 13 is provided with two arcs in the longitudinal direction. Groove 131.

a tool head 20 having a cylindrical shape and the tool head 20 is attached to In the accommodating groove 13, the outer surface of the tool head 20 is provided with a ratchet 21, the upper end of the tool head 20 is formed with a boss 22 in the longitudinal direction, and the lower end portion is formed with a latch portion 23, and The protruding post 22 is correspondingly disposed on the first through hole 14 . Further, a groove 24 is disposed on the ring below the ratchet tooth 21 of the tool head 20 , and the outer peripheral wall of the protruding post 22 is further provided with a first lateral direction. a positioning member 25, the first positioning member 25 has a circular groove 251, the circular groove 251 is formed with an opening 2511, and the circular groove 251 receives a steel ball 252 and a spring 253, and the spring 253 is disposed laterally In the circular groove 251, the steel ball 252 is disposed at the front end of the spring 253, and the diameter of the opening 2511 is smaller than the diameter of the steel ball 252, so the steel ball 252 does not protrude from the opening 2511, and the The steel ball 252 protrudes from the circular groove 251 by the elastic abutment of the spring 253.

The two paddles 30 are provided with a ratchet 31 at the front end and below the ratchet 31 A locking block 32 is disposed in the lateral direction, and a pivoting portion 33 is disposed at the other end of the picking piece 30, and the pivoting portion 33 is disposed with the recess 131 in the receiving groove 13 The paddles 30 can be pivoted in the groove 131. The card block 32 can be disposed in the groove 24 of the tool head 20, and one side of the paddles 30 is attached thereto. A spring 34 is interposed between the side walls of the accommodating groove 13, and the spring 34 has a pre-stress for elastic recovery.

a dial block 40 that passes through the shaft hole 16 of the wrench body 10 in the longitudinal direction, and Between the paddles 30, the dialing block 40 is provided with a through hole 41 in the longitudinal direction, and a lever 41 is provided with a matching hole 421 corresponding to the screw hole 41. The lever 41 is stacked on the top surface of the wrench body 10, and is screwed to the screw hole 41 and the through hole 421 by a fixing member 43, thereby making the fixing member 43, the lever 41 and the dialing The movable block 40 is integrated into one body, whereby the lever 41 controls the dialing block 40 to press against the paddles 30 toward the left or the right side, and when the dialing block 40 is pressed against the paddles 30, one of them The latching block 32 of the pick 30 is disposed in the groove 24 of the tool head 20, and the ratchet 31 of the pick 30 is engaged with the ratchet 21 of the tool head 20, Therefore, the dial block 40 controls the direction in which the tool head 20 rotates.

a cover 50 is disposed outside the receiving slot 13 of the wrench body 10 At the same time, the back cover 50 is provided with a second through hole 51, and the tool head 20 is disposed in the second through hole 51, and is pivoted in the second through hole 51. The through hole 15 of the wrench body 10 is provided with a screw hole 52, and the screw hole 41 corresponding to the dial block 40 is provided with a constant hole 53. Therefore, in the embodiment, the screw hole 54 can be inserted through a screw 54. The through hole 15 of the wrench body 10 and the screw hole 52 of the back cover 50 are screwed, and the through hole 53 of the back cover 50 and the screw hole 41 of the dial block 40 are further screwed by a screw 54. The back cover 50 is integrated with the wrench body 10 to be integrated.

For further understanding of the structural features, technical means and expectations of the present invention The invention will be described in terms of the manner of use of the present invention, and it is believed that the invention can be more deeply and specifically understood as follows: as shown in Figures 1, 3 and 4, which is a A perspective view, a transverse cross-sectional view, and a schematic view of a preferred embodiment of the present invention are used to show the aspect of the tool head separating the wrench body. In the figure, when the user dials the lever 42 to an intermediate position, the lever 42 is interlocked. The dial block 40 is slid so that the dial block 40 is not pressed against the paddles 30, and the paddles 30 are not engaged with the tool head 20, and the card blocks 32 of the paddles 30 are not disposed. The tool head 20 is provided for the user to be taken out and replaced by the accommodating groove 13 in a state of being separated.

Please refer to the figures 1, 5, 6, and 7 again, which is a preferred embodiment of the present invention. The perspective view, the transverse cross-sectional view and the longitudinal cross-sectional view of the example, in order to show the state of the dial block to the top pick and the manner in which the snap block is placed on the groove, when the user toggles the lever 42 to the left or the right side, The lever 42 is coupled to the dial block 40 by the fixing member 43 to rotate the dial block 40 and further pressed against the paddle 30, and the ratchet 31 of the front end of the paddle 30 is coupled to the tool head 20. The ratchet teeth 21 are engaged with each other, and the locking block 32 of the paddle 30 is received in the groove 24, so that the tool head 20 is rotated by one side, and the other side is idling ratcheting.

Moreover, when the tool head 20 is disposed in the accommodating groove 13, the pillar 22 is The first positioning member 25 of the side is positioned in the receiving groove 13 by the spring 253, and the steel ball 252 is elastically pushed to protrude the steel ball 252 to further position the tool head 20, As shown in FIG. 7, when the paddles 30 are not engaged with the tool head 20, and the carding block 32 is not jammed in the groove 24, the tool head 20 does not The accommodating groove 13 is dropped, whereby the first positioning member 25 has the purpose of positioning and preventing the tool head 20 from falling from the accommodating groove 13.

Please refer to FIG. 8 , which is a longitudinal cross-sectional view of a second embodiment of the present invention. In the figure, the lever 42 is pivoted to an intermediate position, and a recess 422 is recessed on the lower side of the lever 42. The wrench body 10 is provided with a second positioning member corresponding to the recess 422. And the second positioning member 17 has a circular groove 171. The circular groove is formed with an opening 1711. The spring 173 corresponds to the opening 1711 and is disposed in the circular groove 171 in the longitudinal direction, and then the steel ball 172 is attached to the spring. At the upper end of the 173, the diameter of the opening 1711 of the circular groove 171 is smaller than the diameter of the steel ball 172, so that the steel ball 172 does not protrude from the opening 1711, and the spring 173 elastically abuts the steel ball 172. And the steel ball 172 protrudes from the circular groove 171, and when the user pushes the central position of the lever 42, the groove 422 of the lever 42 latches the steel ball of the second positioning member 17 172, further positioning the lever 42 and, due to the interlocking relationship between the dialing block 40 and the lever 42, the dialing block 40 is not pressed against the paddle 30 to the left and right, so the paddle 30 does not The tool head 20 is formed to be engaged, as shown in FIG. 3, at this time, the tool head 20 can be taken out by the receiving groove 13, whereby the second Bit member 17 with the recess 422 of the lever 42 for the user based on the exact position of the lever 42 in the toggle, so as to achieve smooth for the user to replace the head 20 of the tool advantages.

Further, the features of the present invention and the achievable expected effects thereof are as follows: the ratchet wrench of the replaceable tool head of the present invention, wherein the card block 32 of the paddle 30 and the groove of the tool head 20 are The relative position of the tool block 20 is unilaterally rotated in the accommodating groove 13 while the card block 32 of the plunging blade 30 is disposed in the groove 24 of the tool head 20, and the other While the ratcheting action of the pick-up piece 30 is not disposed in the groove 24 of the tool head 20, the tool head 20 is available to the user from the receiving groove. 13 is taken out and replaced, whereby the ratchet wrench of the replaceable tool head of the present invention has The utility model has the advantages of simple structure, easy assembly, low processing difficulty and low manufacturing cost, and the user can replace the tool heads 20 of different sizes according to their own needs, thereby improving the convenience of replacement.

The ratchet wrench of the replaceable tool head of the present invention, wherein the tool head 20 The protrusion 22 is further provided with the first positioning member 25, and the first positioning member 25 elastically abuts the steel ball 252 by the spring 253, so that the steel ball 252 protrudes and positions the tool head 20, thereby The tool head 20 is disposed in the accommodating groove 13 , and the paddles 30 are not engaged with the tool bit 20 , and the tool head 20 is not arbitrarily dropped by the accommodating groove 13 , so the first locating member The 25 series has the advantage of positioning and preventing the tool head 20 from falling out of the accommodating groove 13.

The ratchet wrench of the replaceable tool head of the present invention, wherein the wrench body 10 The second positioning member 17 is disposed on the top surface of the second positioning member 17, and the second positioning member 17 elastically abuts the steel ball 172 by the spring 173, so that the steel ball 172 protrudes, whereby when the lever 42 is turned to the middle In the position, the groove 422 of the lower lever 42 of the lever is latched with the steel ball 172, and the lever 42 can be further positioned, and the dialing block 40 is not pressed against the paddle 30 toward the left and right sides, and at the same time The user is able to remove and replace the tool head 20 with the tool head 20, whereby the second positioning member 17 and the groove 422 of the lever 42 are removed. It is convenient for the user to position the lever 42 in an accurate position and has the advantage of allowing the user to smoothly replace the tool head 20.

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

131‧‧‧ Groove

14‧‧‧First perforation

15‧‧‧through holes

16‧‧‧Axis hole

20‧‧‧Tool head

21‧‧‧ ratchet

22‧‧‧Bump

23‧‧‧Card Department

24‧‧‧ trench

25‧‧‧First positioning piece

251‧‧‧ round groove

2511‧‧‧ openings

252‧‧‧ steel balls

253‧‧ ‧ spring

30‧‧ ‧ picks

31‧‧‧ ratchet

32‧‧‧Card block

33‧‧‧ pivoting department

34‧‧‧ Spring

40‧‧‧ Swipe block

41‧‧‧ screw holes

42‧‧‧

50‧‧‧Back cover

51‧‧‧Second perforation

52‧‧‧ screw holes

53‧‧‧through holes

54‧‧‧ screws

Claims (6)

A ratchet wrench for a replaceable tool head, comprising: a wrench body, the front end of the wrench body is recessed with a receiving groove, the bottom of the receiving groove is provided with a first through hole, and the receiving groove is inside The utility model is provided with an outer ring mask and a ratcheting tool head. The receiving groove is further provided with a dialing block on one side of the tool head, and a paddle is respectively arranged on two sides of the dialing block, and the paddles are respectively arranged The front end is formed with a ratchet for engaging with the tool head, and a spring is sandwiched between the paddles and the side wall of the accommodating groove, and the main feature is that the tool head is radially arranged a groove is formed in the groove corresponding to the tool head, and a clamping block is disposed in the horizontal direction, and the clamping block can be disposed in the groove; thereby, the dialing block is The dial can be turned and changed, and the ratcheting selection of the picking piece is changed, thereby controlling the ratchet teeth of the picking piece to form engagement with the tool head, and the engaging block of the picking piece is disposed in the groove to form a card. Acting, and when the two sides of the dial block respectively abut the top picks, the card blocks are not carded Grooves, so the receiving groove of the tool head can be removed based replacement. The ratchet wrench of the replaceable tool head according to claim 1, wherein the groove is located below the ratchet of the tool head, and the card block corresponds to the groove and is disposed on the dial Below the ratchet of the piece. The ratchet wrench of the replaceable tool head according to the first aspect of the invention, wherein the outer peripheral wall of the upper end of the tool head is provided with a first positioning member, so that the tool head can be positioned on the body of the wrench body. Set on the slot. The ratchet wrench of the replaceable tool head according to the third aspect of the invention, wherein the first positioning member has a circular groove recessed in the lateral direction of the outer peripheral wall of the tool head, the circular groove receiving a spring and a a steel ball, and the steel ball is disposed at a front end of the spring, and the spring elastically abuts the steel ball. The ratchet wrench of the replaceable tool head according to the first aspect of the invention, wherein the top of the dial block is provided with a lever, and the bottom side of the dial is recessed with a groove, and the wrench The body corresponding to the groove is provided with a second positioning member. The ratchet wrench of the replaceable tool head according to claim 5, wherein the second positioning member is recessed on the top surface of the wrench body, and the circular groove is disposed at a corresponding position of the groove. And a ball and a steel ball are disposed in the circular groove, and the steel ball is disposed on the upper end of the spring, and the spring elastically abuts the steel ball, so that the steel ball can be stuck in the groove Inside, the lever can be further positioned.