Ratchet pliers with adjustable jaw
AssigneeTianjin Runshi Science Development Co., Ltd.
InventorsHanzhen Zhang, Lei Zhang
Life of this patent
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Abstract
A ratchet pliers with adjustable jaw includes a working head, an integrated retractable handle arrangement, a ratchet stepping arrangement and a rapid adjusting arrangement. The ratchet pliers with adjustable jaw has several advantages. Firstly, the rapid adjusting arrangement with simple operation and convenient use is capable of micro-adjusting a closure error of the jaw opening after clamping. Secondly, the integrated retractable handle arrangement is capable of adjusting a length of the handle according to different demands for a jaw clamping force so as to save energy of a user.
Claims20
A ratchet pliers with adjustable jaw, comprising:
- a working head;
- an integrated retractable handle arrangement connected with said working head, comprising:
- a first integrated retractable handle unit comprising a first handle, wherein said first handle has a first handle connecting hole provided on an upper end thereof, a first regulating hole provided below said first handle connecting hole and a first fixing hole provided between said first handle connecting hole and said first regulating hole;
- and
- a second integrated retractable handle unit pivotally connected with said first integrated retractable handle unit, comprising a second handle, wherein said second handle has a second connecting hole on an upper end thereof, a second fixing hole fitted into said first fixing hole, a ratchet mounting hole, and a spring mounting hole provided below said ratchet mounting hole, wherein said second fixing hole is provided between said second connecting hole and said ratchet mounting hole;
- a ratchet stepping arrangement connected with said integrated retractable handle arrangement;
- and
- a rapid adjusting arrangement fixedly connected with an upper end of said first handle, comprising:
- a regulating nut;
- and
- an eccentric regulating pole having an eccentric regulating aperture, axially provided within said regulating nut,
- wherein said integrated retractable handle arrangement is connected with said working head at said first handle connecting hole and said second connecting hole, said ratchet stepping arrangement is connected with said integrated retractable handle arrangement at said ratchet mounting hole and said spring mounting hole, said rapid adjusting arrangement is connected with said first handle at said first regulating hole,
- wherein said first integrated retractable handle unit, having a first handle mounting hole, further comprises:
- a first handle casing having a first casing guiding slot and coaxially aligned with said first handle;
- a first position limiter, having a first position limit hole and a first position limit guiding slot, provided within said first handle;
- and
- a first adjusting push button perpendicularly connected with said first handle, comprising a first button cap, a first guiding member, a first regulating shank threadedly connected said first button cap with said first guiding member, a first spring block provided on said first handle casing, and a first spring provided between said first button cap and said first spring block, wherein said first button cap, said first guiding member, said first regulating shank, said first spring block and said first spring are coaxially aligned with each other, in such a manner that a bottom surface of said first spring block contacts with an outer surface of said first handle casing, said first guiding member is located within said first position limit hole, said first position limiter is located within said first position limit hole at a free position, wherein said first position limit guiding slot is parallel to and communicated with said first casing guiding slot;
- wherein said second integrated retractable handle unit, having a second handle mounting hole, further comprises:
- a second handle casing having a second casing guiding slot and coaxially aligned with said second handle;
- a second position limiter, having a second position limit hole and a second position limit guiding slot, provided within said second handle;
- and
- a second adjusting push button perpendicularly connected with said second handle, comprising a second button cap, a second guiding member, a second regulating shank threadedly connected said second button cap with said second guiding member, a second spring block provided on said second handle casing, and a second spring provided between said second button cap and said second spring block, wherein said second button cap, said second guiding member, said second regulating shank, said second spring block and said second spring are coaxially aligned with each other, in such a manner that a bottom surface of said second spring block contacts with an outer surface of said second handle casing, said second guiding member is located within said second position limit hole, said second position limiter is located within said second position limit hole at a free position, wherein said second position limit guiding slot is parallel to and communicated with said second casing guiding slot.
Dependencies are inferred from the claim text.