一种自锁摇摆头棘轮扳手
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO QUANYAO HARDWARE TOOLS CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-17
Smart Images

Figure CN224509537U_ABST
Abstract
Claims
1. A self-locking swing head ratchet wrench comprising a rotating ratchet head assembly (100), characterized in that: The bottom surface of the pressing part (61) formed at the bottom end of the pressing pin (60) of the rotating ratchet head assembly (100) has multiple positioning slots (62). The top left and right sides of the handle (200) are formed with upwardly extending connecting parts (201), and the rotating ratchet head assembly (100) is located between the two connecting parts (201). The two connecting parts (201) are movably connected to the ratchet ring (10) of the rotating ratchet head assembly (100) by connecting screws (202). The top surface of the handle (200) has a vertically extending insertion hole (203) formed in the middle. The top pin (204) and the spring (205) are inserted into the insertion hole (203). The bottom end of the spring (205) presses against the bottom end of the insertion hole (203), and the bottom end of the top pin (204) presses against the top end of the spring (205). The top end of the top pin (204) has a triangular-shaped protruding positioning part (2041) formed in the top end. The protruding positioning part (2041) extends out of the top end of the insertion hole (203) and is inserted into the corresponding positioning slot (62).
2. A self-locking oscillating head ratchet wrench according to claim 1, characterized in that: The upper front and rear sidewalls of the handle (200) are both formed with waist-shaped through grooves (206), and the middle of the inner wall of the waist-shaped through groove (206) is formed with a waist-shaped through hole (2061). The waist-shaped through hole (2061) communicates with the insertion hole (203). The upper movable cover (207) and the lower movable cover (208) are inserted into the two waist-shaped through grooves (206). The left and right sidewalls of the upper movable cover (207) and the lower movable cover (208) are close to the left and right inner sides of the corresponding waist-shaped through grooves (206). The side wall and the top pin (204) have multiple through holes formed in the middle. The top surface of the lower movable cover (208) has a positioning rod corresponding to the through hole. The bottom surface of the upper movable cover (207) has a positioning sleeve corresponding to the through hole. The positioning sleeve is inserted into the corresponding waist-shaped through hole (2061) and the corresponding through hole. Its outer side wall is close to or tightly attached to the inner side wall of the through hole. The positioning rod is inserted into the corresponding waist-shaped through hole (2061) and is locked in the corresponding positioning sleeve.
3. A self-locking oscillating head ratchet wrench according to claim 1, wherein: The bottom end face of the top pin (204) has a protrusion formed in the middle, and the protrusion is inserted into the top of the spring (205).
4. A self-locking oscillating ratchet wrench according to claim 1, characterized in that: The two connecting parts (201) and the inner sidewall of the top surface of the handle (200) form an arc-shaped wall. The middle outer sidewall of the two connecting parts (201) is formed with an inwardly extending stepped through hole (2011). The outer end of the stepped through hole (2011) is a large-diameter hole section, and the inner end is a small-diameter hole section. The rotating part of the connecting screw (202) is inserted into the large-diameter hole section of the stepped through hole (2011). The rod part (2021) formed in the middle of the inner end face of the rotating part is inserted into the small-diameter hole section of the stepped through hole (2011). The screw part formed in the middle of the inner end of the rod part (2021) is screwed into the screw hole formed in the middle of the left or right side wall of the ratchet ring (10).
5. A self-locking oscillating head ratchet wrench according to claim 1, wherein: The handle (200) has a handle portion formed at the rear.
6. A self-locking oscillating head ratchet wrench according to claim 1, wherein: The handle (200) has a hexagonal prism-shaped insertion hole (219) formed in the middle of its rear end face. The hexagonal prism-shaped insertion hole (219) has an installation hole formed in the middle of its inner end face. The permanent magnet block (210) is inserted into the installation hole and fixed in the installation hole by adhesive. The rear end face of the permanent magnet block (210) is flush with the rear end face of the installation hole.
7. A self-locking oscillating head ratchet wrench according to claim 6, wherein: The hexagonal prism of the side bit (6) is inserted into the hexagonal prism socket (219) and mates with the hexagonal prism socket (219). The inner end face of the side bit (6) presses against the permanent magnet block (210) and attracts it. The outer end of the side bit (6) extends out of the rear end of the handle body (200).
8. A self-locking oscillating head ratchet wrench according to claim 6, wherein: The hexagonal prism at the top of the connecting rod (400) is inserted into the hexagonal prism socket (219). The hexagonal prism and the hexagonal prism socket (219) are matched, and the top surface of the hexagonal prism presses against the permanent magnet block (210) and attracts each other.
9. A self-locking oscillating head ratchet wrench according to claim 1, wherein: The rotating ratchet head assembly (100) includes a ratchet ring (10), a connecting head column (20) is inserted into the central through hole of the ratchet ring (10), a radially extending edge (21) is formed on the outer side wall of the top of the connecting head column (20), and the bottom surface of the radially extending edge (21) is in close contact with the top surface of the ratchet ring (10); a downwardly extending lower column (23) is formed in the middle of the bottom surface of the connecting head column (20), and a downwardly extending connecting screw post (24) is formed in the middle of the bottom surface of the lower column (23); a cover (30) is placed on the central bottom surface of the ratchet ring (10), a central recess (32) is formed in the middle of the bottom surface of the cover (30), an upper through hole (33) is formed in the middle of the top surface of the central recess (32), and the lower column (23) is inserted into the upper through hole (33). The outer side wall of the column (23) is close to the inner side wall of the upper through hole (33). The bottom end of the lower column (23) extends out of the bottom end of the upper through hole (33). The bottom surface of the connecting screw column (24) is formed with a connecting hole extending vertically upward. The top surface of the connecting head column (20) is formed with a connecting sleeve part (25). The middle part of the connecting sleeve part (25) is formed with a hexagonal insertion hole. The hexagonal connecting column of the bit (1) is inserted into the hexagonal insertion hole and matches the hexagonal insertion hole. The bottom end face of the hexagonal insertion hole is formed with a lower mounting hole. The second permanent magnet block (4) is nested in the lower mounting hole and fixed by adhesive. The bottom surface of the hexagonal connecting column of the bit (1) is pressed against the second permanent magnet block (4) and attracted and fixed. The top of the bit (1) extends out of the top of the connecting sleeve part (25). The connecting screw post (24) is inserted into the central recess (32), and the locking nut (26) is screwed onto the external thread of the connecting screw post (24), with the top surface of the locking nut (26) close to the top surface of the central recess (32); The upper part of the pressure pin (60) is screwed onto the internal thread of the connecting hole.