CN100343022C - Reversing ratchet wrench with anti-seize structure - Google Patents

Abstract

A reversing ratchet wrench with an anti-jamming structure comprises: the wrench handle part is provided with a driving part at one end, the driving part is provided with a combination hole and a direction control groove, the wrench handle part is also provided with a guide groove, and a driving device is arranged in the combination hole; two direction blocks, which are arranged in the guide groove and are provided with clamping columns in a relatively protruding way; a direction control device arranged in the direction control groove, and the two direction blocks can slide in the guide groove in a reversing way according to the operation direction of the direction control device; therefore, when the two direction blocks are engaged with the driving device and are in a blocking state, the two blocking columns are mutually abutted to bounce the direction blocks, so that the wrench is restored to be in an operable state.

Description

Reversing ratchet wrench with anti-seize structure

[technical field]

The invention relates to a reversing ratchet wrench with an anti-jamming structure.

[Background technique]

As described in the existing Chinese Taiwan Patent Publication No. 380471 "Wrench Structure Improvement" patent bulletin, wherein, the conventional wrench is provided with a central through hole in the body seat, and the central through hole is provided with a receiving groove and interlaced with the receiving groove The locking groove at the rear is provided with a screw hole in the center of the locking groove, and the central through hole in the body seat is provided with a driving device composed of a fitting part and the body, and the peripheral edge of the body is provided with a ratchet wall. The joint part is set inside the body; the two clamping blocks are installed in the arc-shaped groove of the body seat, and one side of the block is provided with a ratchet wall to engage with the ratchet wall of the drive mechanism, and the card corresponding to the body seat The positions of the grooves are respectively provided with a clamping column, and the two clamping blocks are provided with grooves (not marked) in the opposite walls for the two ends of a spring to be clamped in; a control panel is a corresponding clamping The block body of the slot has a screw hole corresponding to the central screw hole of the locking slot, the control panel is locked on the locking slot, and a dial hole is provided on the control panel. The staggered spaces of the grooves allow the dialing hole to move the clamping post of the clamping block into the dialing hole when the control panel is rotated.

Generally speaking, when the conventional wrench is in the idling state, the wall surface of the ratchet wheel of the driving mechanism will move one of the clamping blocks in a forward direction, and the spring can be used to return elastically. However, if the ratchet of the wrench clamping block When the wall surface and the ratchet wall surface of the relative driving mechanism are engaged with each other and are in a stuck state, the interlocking block will be forced to press against another fixed block. When the user exerts excessive force or continues When the force is applied, the spring between the two clamping blocks will be squeezed by the force of the two ends, causing the center of the spring to deform or even break. In this way, the user must push the two clamping blocks The block is taken out and the spring is replaced, but this time-consuming and labor-intensive loss causes inconvenience to the user for no reason, so the conventional wrench is not a good design, but a design that needs to be improved.

The technical problem to be solved by the present invention is that if the ratchet wall surface of the conventional wrench drive mechanism and the ratchet wall surface of the opposite clamping block form a locked state, the linked clamping block will be forced to the other A fixed clamping block presses, if the user applies too much force or continues to apply force, the spring between the two clamping blocks will be squeezed by the force of the two ends, causing the spring to deform or even break in the center In this case, the user must take out the two clamping blocks and replace the spring, and this time-consuming and labor-intensive loss will cause inconvenience to the user for no reason. Therefore, this conventional wrench is not a good design, but a good design. A design that could be improved upon.

[Content of the invention]

The object of the present invention is to provide a reversing ratchet wrench with an anti-jamming structure, which is provided with a post at the relative position of the two direction blocks, and the driving device of the ratchet wrench and the two direction blocks are stuck. At the same time, the two clamping posts can push against each other so that the two direction blocks relatively bounce off to remove the stuck state.

The invention provides a reversing ratchet wrench with an anti-jamming structure, including:

A wrench handle, a driving part is provided at one end of the wrench handle, the driving part is provided with a combination hole and a direction control groove, and the wrench handle is also provided with an open guide groove on one side of the combination hole, the guide The slot is connected to the direction control slot;

a driving device is arranged in the combination hole;

The two direction blocks are arranged in the guide groove, and the two direction blocks are relatively convexly provided with clamping posts;

A direction control device is arranged in the direction control slot, including a control part, and the control part ring is provided with a fastener to be locked in the direction control slot, and the two direction blocks can be moved according to the operating direction of the direction control device. The reversing slide in the guide groove;

Thereby, when the two direction blocks are engaged with the driving device and are in a stuck state, the direction blocks can be bounced off by the mutual abutment of the two clamping posts, so as to restore the wrench to an operable state.

A bridge portion is provided between the combination hole and the direction control groove, and the bridge portion forms a through opening at the central position, the through opening communicates with the guide groove and the combination hole,

The peripheral ring of the driving device is provided with a C-shaped fastener so that the driving device can be embedded in the coupling hole, and it is characterized in that:

The fastening member includes a positioning part arranged on the head, the fastening part is embedded in the combining hole, the positioning part protrudes and is positioned in the opening, and closes the opening.

The reversing ratchet wrench with anti-seize structure is characterized in that: the outer ring of the driving device is provided with ratchets, and the two direction blocks are also provided with corresponding ratchets to mesh with the ratchets of the driving device.

The reversing ratchet wrench with anti-jamming structure is characterized in that a spring is arranged between the two clamping posts.

The reversing ratchet wrench with an anti-seize structure is characterized in that: the two direction blocks are provided with a columnar guide sliding part relative to the end surface of the direction control device, and the direction control device is provided with a guide groove, and the direction control device is provided with a guide groove. The sliding guide parts of the two direction blocks are inserted into the guide groove to form a sliding fit.

The reversing ratchet wrench with an anti-seize structure is characterized in that: a positioning hole is provided in the direction control groove, and an elastic body and a steel ball are provided in the positioning hole to position the direction control device.

The reversing ratchet wrench with an anti-seize structure is characterized in that: the bottom of the control member is provided with two clamping holes, and one of the clamping holes is clamped on the steel ball.

The reversing ratchet wrench with anti-jamming structure is characterized in that: the top of the control part is provided with a handle.

Other objects, advantages and novel features of the present invention will be more apparent from the following detailed description and associated drawings.

[Description of drawings]

Fig. 1: is the three-dimensional appearance view of the reversing ratchet wrench with anti-seize structure of the present invention;

Fig. 2: is the schematic structural view of the reversing ratchet wrench with anti-seize structure of the present invention;

Fig. 3: Partial sectional view of the reversing ratchet wrench of the tool anti-seize structure of the present invention;

Fig. 4: is the stuck state schematic diagram (1) of the present invention;

Fig. 5: is the stuck state schematic diagram (two) of the present invention;

[Detailed ways]

About technology, means and effect thereof that the present invention adopts, give a preferred embodiment hereby and cooperate accompanying drawing to describe in detail as follows;

Please refer to Fig. 1 to Fig. 5 first, the structure shown in the figure is a selected embodiment of the present invention, which is for illustration only, and is not limited by this structure in the patent application.

Referring to FIG. 1 , it is a three-dimensional appearance view of a ratchet wrench 1 of the present invention. Referring to this figure, the ratchet wrench 1 of the present invention includes a wrench handle portion 10, and one end of the wrench handle portion 10 is provided with a driving portion 11, and the driving portion 11 passes through a coupling hole 12 for a driving device 20 to be fastened. In combination, the drive unit 11 is further provided with a direction control device 40 at a predetermined position adjacent to the combination hole 12 , and the rotation direction of the drive unit 20 relative to the drive unit 11 can be controlled by adjusting the deflection of the direction control device 40 .

Referring to FIG. 2 , it is a schematic structural diagram of the ratchet wrench 1 of the present invention. Referring to this figure, the driving part 11 of the wrench handle 10 is provided with a through joint hole 12, and a direction control groove 13 is provided at a predetermined position adjacent to the joint hole 12, between the direction control groove 13 and the joint hole 12 A bridge portion 15 is provided, and the bridge portion 15 is broken at a predetermined central position to form a through opening 151, and an arc-shaped guide groove 14 communicating with the coupling hole 12 and the direction control groove 13 is provided under the through opening 151;

The top edge of the combination hole 12 is further provided with a locking groove 121 passing through the bridge portion 15 and interrupted at the opening 151, which is available for the driving device 20 to engage, and thus restricts the driving device 20 from passing through;

The direction control groove 13 can be combined with the direction control device 40, and the predetermined position of the direction control groove 13 is provided with a positioning hole 131, and the positioning hole 131 can be provided with an elastic body 133 and a steel ball 132;

The guide groove 14 can be provided with a directional locking device 30 , and the directional locking device 30 can be controlled by the direction control device 40 to provide the limitation of different rotation directions of the driving device 20 ;

The driving device 20 can be combined with a sleeve or a joint, and its peripheral ring is provided with a ratchet 22, and a C-shaped fastener 21 is combined on the top edge so that the driving device 20 is embedded in the card groove 121;

The clamping member 21 further includes a positioning portion 211 disposed on the head. When the clamping member 21 is embedded in the groove 121, the positioning portion 211 will protrude into the opening 151 and form the opening 151. closed state;

The directional locking device 30 includes two direction blocks 31, and the relative positions of the two direction blocks 31 are protrudingly provided with a post 311, and the two ends of a spring 32 can be sleeved on the two post 311, and the spring 32 can provide that the two direction blocks 31 have a separate jacking force:

The two direction blocks 31 are further provided with a ratchet 312 on the end surface relative to the driving device 20 , and a columnar sliding guide part 313 is provided on the end surface relative to the direction control device 40 ;

The direction control device 40 includes a disc-shaped control member 41, the top of which is provided with a handle 411 for the user to adjust and rotate, and the peripheral ring is provided with a C-shaped fastener 412 to be locked in the direction control groove. 13, and the bottom end of the control part 41 is provided with two clamping holes 413 and a guide groove 414 relative to the guide slide part 313. By using the rotation of the control component 41, the two clamping holes 413 can selectively engage with the steel ball 132. and make the guide groove 414 deflect to drive the two-direction block 31 to one side of the guide groove 14, and drive the driving device 20 with the single-direction block 31.

Referring to Fig. 3, it is a partial cross-sectional view of the ratchet wrench 1 of the present invention. Referring to this figure, when the driving device 20 is placed in the combination hole 12, the C-shaped fastener 21 can be locked in the groove 121, and the C-shaped The clamping member 21 can utilize the positioning portion 211 to be positioned on the opening 151, and make the opening 151 a closed state to reinforce the structural strength of the bridge portion 15, and can limit the movement of the two direction blocks 31 to the driving device 20. , and thus can make the direction block 31 be firmly arranged in the guide groove 14 , and can improve the sure locking effect between the direction block 31 and the driving device 20 .

Referring to FIG. 4 , it is a schematic diagram (1) of the stuck state of the present invention. With reference to this figure, when the user pulls the direction control device 40, it will drive the two direction blocks 31 to one side of the guide groove 14 at the same time, and make the ratchet 312 of the single direction block 31 and the ratchet of the driving device 20 22 are engaged with each other, and in this embodiment, the single direction block 31 is locked with the driving device.

Referring to Fig. 5, it is a schematic diagram (2) of the stuck state of the present invention. With reference to this figure, when the user's operating force is too large, or when there is a continuous drag force, the driving device 20 will move the single direction block 31 to move towards the other direction block 31, while the two direction blocks of the present invention 31. Because the post 311 is protruded at the relative position, the two post 311 will push against each other so that the two direction blocks 30 will bounce off relative to each other, and the ratchet 22 of the driving device 20 and the ratchet of the direction block 31 can be released. 312 stuck state, the ratchet wrench 1 can return to the normal operating state.

Can conclude that the present invention has the following advantages with regard to the above:

The reversing ratchet wrench with an anti-jamming structure of the present invention is provided with a post at the relative position of the two direction blocks. In this way, when the driving device of the ratchet wrench and the two direction blocks are in a stuck state, the The two clamping columns can push against each other to make the two direction blocks relatively spring apart to release the stuck state. In addition, the two ends of the spring are sleeved on the clamping columns. When the distance between the two clamping columns is closer, the space of the spring will be more. Filling, and thus increasing the structural strength, so that the spring deformation and breakage of the conventional reversing ratchet wrench will not occur.

Claims (7)

1. A reversing ratchet wrench with an anti-seize structure, comprising: A wrench handle, a driving part is provided at one end of the wrench handle, the driving part is provided with a combination hole and a direction control groove, and the wrench handle is also provided with an open guide groove on one side of the combination hole, the guide The slot is connected to the direction control slot; a driving device is arranged in the combination hole; The two direction blocks are arranged in the guide groove, and the two direction blocks are relatively convexly provided with clamping posts; A direction control device is arranged in the direction control slot, including a control part, and the control part ring is provided with a fastener to be locked in the direction control slot. Reversing sliding in the guide groove, A bridge portion is provided between the combination hole and the direction control groove, and the bridge portion forms a through opening at the central position, the through opening communicates with the guide groove and the combination hole, The peripheral ring of the driving device is provided with a C-shaped fastener so that the driving device can be embedded in the coupling hole, and it is characterized in that: The fastening member includes a positioning part arranged on the head, the fastening part is embedded in the combining hole, the positioning part protrudes and is positioned in the opening, and closes the opening. 2. The reversing ratchet wrench with an anti-seize structure as claimed in claim 1, characterized in that: the outer ring of the drive device is provided with ratchets, and the two direction blocks are also provided with ratchets corresponding to the drive device. The ratchets mesh with each other. 3. The reversing ratchet wrench with an anti-seize structure as claimed in claim 1, wherein a spring is arranged between the two clamping posts. 4. The reversing ratchet wrench with anti-jamming structure according to claim 1, characterized in that: the two direction blocks are provided with columnar sliding guides on the end faces of the direction control device, and the direction control device is provided with There is a guide groove, and the guide slide parts of the two direction blocks are inserted into the guide groove to form a sliding fit. 5. The reversing ratchet wrench with anti-seize structure according to claim 1, characterized in that: a positioning hole is provided in the direction control groove, and an elastic body and a steel ball are provided in the positioning hole to control the direction Device positioning. 6. The reversing ratchet wrench with an anti-seize structure as claimed in claim 5, wherein the bottom of the control member is provided with two locking holes, and one of the locking holes is locked to the steel ball. 7. The reversing ratchet wrench with an anti-seize structure as claimed in claim 6, wherein a handle is provided at the top of the control member.

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