TWI624332B - Wrench snap fixing structure - Google Patents

Abstract

A buckle fixing structure of a wrench, comprising: a wrench body, a limiting ring, a ratchet device and at least one fitting, wherein the wrench body has a head end and a handle, and the bottom end of the head end is provided a chamber that is vertically recessed, the top surface is electrically connected to the chamber through a perforation, and the perforation is provided with a diameter reduction relative to the chamber, and the perforation is Forming a stepped portion formed by the first step edge and the second step edge, the second step edge further comprising two opposite planes and a lateral opening extending through the head end portion The opening edge of the chamber is provided with a buckle groove. The limiting ring has an inner ring portion and an outer ring portion. The outer ring portion is formed with a first end edge and a second end edge opposite to the second end. The cutting edge has an arc-shaped support wing extending from the center of the first end edge to the two sides, and a pressing portion is protruded from the center of the second end edge.

Description

Wrench snap fixing structure

The present invention relates to a "clamp fastening structure" for a wrench, and more particularly to a ratchet wrench that can be fastened to a fitting such as a sleeve.

According to the conventional ratchet wrench, a driving head and a ratchet block are mounted in the head end of the wrench body, and the outer circumference of the driving head is provided with an outer ring tooth portion, so that the ratchet block can be continuously pushed by a positioning component. Engagement with the outer ring tooth portion, with a reversing dial to push the ratchet block to engage the different tooth portions on both sides and the outer ring tooth portion, the work of the reversing jam can be completed.

However, the conventional structure as described above still has the following problems in practical applications: it is used to provide a sleeve or the like with a polygonal hole of the driving head, but the simple ferrule is not It has the function of positioning. Therefore, it is often necessary to hold the sleeve and other fittings in one hand and the wrench in the other hand to avoid the fittings from falling out at will, which is obviously inconvenient in operation.

Therefore, the present inventors have invented the present invention in view of the fact that the idea of creation and creation has been designed with many years of experience, and has been explored and tested by various parties, and has been repeatedly modified and improved.

Conventional ratchet wrenches are used to provide sleeves and the like in a polygonal hole of the driving head, but the simple ferrule does not have a positioning function, which is a technical problem to be solved.

The buckle fixing structure of the wrench of the present invention comprises: a wrench body, a limiting ring, a ratchet device and at least one fitting, wherein the wrench body has a head end portion and an integral long handle portion extending integrally, The bottom surface of the head end portion is provided with a cavity which is vertically recessed upwardly, and the top surface is electrically connected to the chamber through a through hole, and the perforation is set to be reduced with respect to the chamber. Forming, between the perforation and the chamber, a step formed by the first step and the second step, the second step comprising two opposite planes and a side penetrating the end of the head a ring groove is formed on the opening edge of the chamber, the ring has an inner ring portion and an outer ring portion, and the outer ring portion has a first end edge and a second end. a cutting edge opposite to the second edge, an arc-shaped support wing extending from the center of the first end edge to both sides, and the supporting wing is appropriately spaced from the first end edge, so that the supporting wing can Maintaining a margin of elastic deformation, a pressing portion is protruded from the center of the second end edge, and the limit is And being placed in the chamber from a bottom surface of the wrench body, so that the limiting ring can be stopped on the first step edge, and the pressing portion is provided by the lateral opening, And the supporting wing abuts against the second step edge, and can be pushed into the center position of the inner ring portion and the chamber by the elastic struts of the supporting wing under normal conditions. Misalignment, through the mutual limitation of the trimming edge and the plane, the limiting ring can only be in the The chamber is linearly displaced and cannot be rotated. The ratchet device has a drive head placed in the chamber, and a ratchet block mounted in the end of the head and controlled by a reversing dial. An outer ring tooth portion is disposed on the outer circumference of the head, so that the ratchet block can be engaged with the outer ring tooth portion by continuous pushing of a positioning component, and the left and right sides of the reversing dial are pulled and moved. The ratchet block is formed by clamping the different tooth portions on the two sides and the peripheral edge of the outer ring tooth portion, so that the operation of the reversing jam can be completed, and a multi-angle groove-shaped fitting portion is arranged in the center of the driving head. When the driving head is placed in the chamber, the buckle is fastened to the buckle groove by a buckle, and the buckle can be used to stop the driving head from falling out of the chamber. An annular groove is disposed on the outer periphery of the fitting, and the supporting wing can be utilized when the fitting is sleeved in the fitting portion of the driving head and the top end thereof passes through the inner ring portion of the limiting ring The elastic struts in the normal state are positioned by the limit ring being snapped into the annular groove; thereby, the buckle of the wrench can be formed Constructors.

(1) The buckle fixing structure of the wrench of the present invention, which uses the limit ring to buckle the fitting, so that the fitting can be easily taken out after being inserted into the ratchet device, and the positioning effect is good, and the use is relatively unnecessary. Hold the fitter.

(2) The buckle fixing structure of the wrench of the present invention, the wrench body can provide various types of assembly fastening, which is more flexible in use, and is not limited to a single function.

Part of the invention:

(10)‧‧‧Wrench body

(11) ‧ ‧ head end

(12) ‧ ‧ shank

(13) ‧‧‧ chamber

(131) ‧‧‧ buckle groove

(132) ‧‧‧ 容容

(14) ‧‧‧Perforation

(15) ‧‧‧First Order

(16) ‧‧‧second edge

(161) ‧ ‧ plane

(162) ‧‧‧ lateral opening

(20)‧‧‧ Limit ring

(21)‧‧‧ Inner Ring Department

(22) ‧‧‧Outer Rings

(221)‧‧‧First end edge

(222)‧‧‧second edge

(223) ‧‧‧ trimming

(224)‧‧‧Support wings

(225) ‧‧‧ Pressing Department

(226)‧‧‧ Sets

(30)‧‧‧ratchet device

(31)‧‧‧ drive head

(311)‧‧‧External ring teeth

(312) ‧ ‧ Included

(32)‧‧‧Reversing button

(33) ‧‧‧ buckle

(40)‧‧‧ Accessories

(400)‧‧‧ Accessories

(41) ‧ ‧ Circumference

(50) ‧ ‧ spring

The first figure is a perspective view of the present invention in combination with an assembly.

Second Figure: A perspective exploded view of the present invention.

Third Figure: A perspective exploded view of another angle of the present invention.

Figure 4 is a cross-sectional view showing the state of the buckle of the present invention.

Fig. 5 is a cross-sectional view showing another state of the buckle state of the present invention.

Figure 6 is a cross-sectional view of the limit ring of the present invention after being pressed.

Figure 7 is a cross-sectional view showing another angle after the limit ring of the present invention is pressed.

Figure 8 is a view of another preferred embodiment of the present invention.

Figure 9 is a diagram showing the state of the buckle according to another preferred embodiment of the present invention.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [Simplified Description of the Drawings] for details:

Generally, according to the present invention, please refer to the first to fifth figures, which includes: a wrench body (10), a limit ring (20), a ratchet device (30) and at least one assembly. (40) (400), wherein the wrench body (10) has a head end portion (11) and an integrally extending shank portion (12), and the bottom surface of the head end portion (11) is provided with a vertically recessed one a chamber (13), the top surface is electrically connected to the chamber (13) through a through hole (14), and the through hole (14) is reduced in diameter relative to the chamber (13). Between the through hole (14) and the chamber (13), a step portion formed by the first step edge (15) and the second step edge (16) is formed, and the second step edge (16) And comprising two opposite planes (161) and a lateral opening (162) extending through the head end portion (11), and is provided on an opening edge of the chamber (13) a retaining ring groove (131), the limiting ring (20) has an inner ring portion (21) and an outer ring portion (22), and the outer ring portion (22) is formed with a first end edge (221), a second end edge (222) is opposite to the two opposite cutting edges (223), and the first end edge (221) has an arc-shaped support wing (224) extending from the center to the both sides, and the supporting wing (224) 224) an appropriate separation from the first end edge (221), such that the support wing (224) can maintain a margin of elastic deformation, and a pressing portion protrudes from the center of the second end edge (222) ( 225), the limiting ring (20) is received from the bottom surface of the wrench body (10) into the chamber (13), so that the limiting ring (20) can be stopped The first step (15) is provided with the lateral opening (162) to extend the pressing portion (225), and then the supporting wing (224) abuts against the second step (16) In the normal state, by the elastic struts of the support wings (224), the inner ring portion (21) and the chamber (13) are displaced to a central position, and the cut is transmitted through the cut. The mutual limitation of the edge (223) and the plane (161) causes the limit ring (20) to be linearly displaced only in the chamber (13) and cannot be rotated. The ratchet device (30) has a drive head (31) placed in the chamber (13) and mounted in the head end portion (11) and controlled by a reversing dial (32) a ratchet block (not shown), the outer periphery of the driving head (31) is provided with an outer ring tooth portion (311), so that the ratchet block can be continuously pushed by a positioning component (spring) and the outer ring tooth portion (311) generating engagement, through the left and right movement of the reversing dial (32), swaying the ratchet block with the different tooth portions on both sides and the periphery of the outer ring tooth portion (311) The carding operation can complete the operation of the reversing cassette, and the center of the driving head (31) is provided with a polygonal groove-shaped fitting portion (312) when the driving head (31) is placed in the chamber ( 13) After the inner ring, a buckle (33) is used to fasten the buckle ring (131), and the buckle (33) can be used to stop the drive head (31) from falling out again. The chamber (13), the outer periphery of the fitting (40) (400) is provided with a ring groove (41), and the fitting (40) (400) is sleeved on the sleeve of the driving head (31) (312) and let it When the top end passes through the inner ring portion (21) of the limiting ring (20), the elastic support of the supporting wing (224) in the normal state can be used to engage the ring with the limiting ring (20). Positioner in the groove (41).

The present invention provides a snap-on fixing structure of a wrench, wherein a retaining ring (20) is coupled to the chamber (13) to a spring (50), and the spring force of the spring (50) is pushed. The effect of the auxiliary return position on the limit ring (20) can be generated under normal conditions.

The present invention provides a snap-fastening structure for a wrench, wherein a set of rods (226) are extended between two support wings (224) of the retaining ring (20), and the set is provided by the set of rods (226) The spring (50) is sleeved, and a cavity (132) is recessed at a position of the chamber (13) relative to the sleeve (226).

The present invention provides a snap fastening structure for a wrench, wherein the lateral opening (162) is a rear side position adjacent to the handle end portion (11) through the head end portion (11) (please simultaneously Figure 1 to Figure 7).

The invention provides a buckle fixing structure of a wrench, wherein the lateral opening (162) is a front side position of the head end portion (11) (please observe both the eighth figure and the ninth figure) .

The present invention provides a snap fastening structure for a wrench, wherein the pressing portion (225) is a sheet that is bent into an L shape.

The invention provides a snap fastening structure for a wrench, wherein the fitting (40) is an external sleeve.

The invention provides a snap fastening structure for a wrench, wherein the fitting (400) is an external screwdriver tool head.

Continued from the sixth and seventh diagrams, the actual use, if you want to replace the different fittings (40) (400), use the pressing part (225) of the limit ring (20) to provide compression And driving the limiting ring (20) to translate, so that the limiting ring (20) can be disengaged from the annular groove (41) of the fitting (40) (400), not to the fitting (40) ( 400) The buckle is engaged, and the center position of the inner ring portion (21) will be aligned with the center position of the chamber (13) without being misaligned, so that the fitting (40) (400) can be easily connected to the driving head ( 31) separating, and falling out of the chamber (13) of the wrench body (10), the relative replacement of the different fittings (40) (400), after replacement by the pressing portion (225) Release, the elastic force of the support wing (224) drives the limit ring (20) to be actively reset, so that the replaced fitting (40) (400) can regain the occupant.

The buckle fixing structure of the above wrench has the following advantages: (1) it buckles the fitting (40) (400) by using the limiting ring (20), thereby preventing the fitting (40) (400) from being loaded The ratchet device (30) is easily removed afterwards, and the positioning effect is good, and it is relatively unnecessary to support the fitting (40) (400) at all times; (2) the wrench body (10) can provide various fittings. (40) (400) Carding, which is more flexible in use, and is not limited to a single function.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equal variation and modification of the scope of the patent application of the present invention should still belong to the present creation. Within the scope of the patent.

Claims (6)

A buckle fixing structure of a wrench, comprising: a wrench body, a limiting ring, a ratchet device and a fitting, wherein: the wrench body has a head end and a suitable length, the head end The bottom surface is provided with a chamber which is vertically recessed, and the top surface is electrically connected to the chamber through a through hole, and the perforation is set to be reduced with respect to the chamber, Forming, between the perforation and the chamber, a step formed by the first step and the second step, the second step comprising two opposite planes and a lateral opening extending through the end of the head, a buckle groove is disposed on the opening edge of the chamber; the limiting ring has an inner ring portion and an outer ring portion, and the outer ring portion is formed with a first end edge, a second end edge and two The opposite cutting edge, an arc-shaped supporting wing protrudes from the center of the first end edge to the both sides, and the supporting wing is appropriately spaced from the first end edge, so that the supporting wing can maintain elasticity a margin of deformation, a pressing portion is protruded from the center of the second end edge, and the limiting ring is from the wrench The bottom surface of the body is received in the chamber, so that the limiting ring can rest on the first step edge, and the lateral opening is used to provide the pressing portion to protrude, and then the support When the wing is abutted against the second step edge, the elastic support of the support wing can be pushed in the normal state to push the inner ring portion and the chamber to generate a misalignment at the center position. The mutual limitation of the trimming and the plane causes the limiting ring to be linearly displaced only in the chamber and cannot be rotated; the ratchet device has a driving head placed in the chamber, and is mounted in the Inside the head end And controlled by a ratchet block of a reversing dial, the outer periphery of the driving head is provided with an outer ring tooth portion, so that the ratchet block can be continuously pushed by a positioning component to engage with the outer ring tooth portion, The left and right of the reversing dial are pulled, and the ratchet block is clamped by the different tooth portions on the two sides and the peripheral edge of the outer ring tooth portion, so that the reversing jam can be completed. And a multi-angle groove-shaped sleeve portion is arranged in the center of the driving head. After the driving head is placed in the chamber, the buckle ring is fastened to the buckle ring by a buckle, and the buckle ring can be used Blocking the drive head from falling out of the chamber; a peripheral groove is disposed on the outer periphery of the assembly, and the fitting is sleeved in the sleeve of the drive head, and the top end thereof passes through the When the inner ring portion of the limiting ring is used, the elastic struts of the supporting wing in the normal state can be used to engage the positioner in the annular groove with the limiting ring. The buckle fixing structure of the wrench of claim 1, wherein the limiting ring and the chamber are supported by a spring, and the spring force of the spring is pushed upwards, which can be used in the normal state. The limit ring produces an auxiliary return effect. The buckle fixing structure of the wrench of claim 2, wherein a pair of rods protrude from the two supporting wings of the limiting ring, and the sleeve is provided with the spring to be sleeved in the cavity The chamber is recessed with a pocket relative to the position of the sleeve. The buckle fixing structure of the wrench of claim 1, wherein the lateral opening is a rear side position adjacent to the shank portion through the head end portion. The buckle fixing structure of the wrench of claim 1, wherein the lateral opening is a front side position penetrating the head end. The buckle fixing structure of the wrench according to claim 1, wherein the pressing portion is a sheet bent into an L shape.