一种用于螺钉拧紧工具的枪头

Abstract

本实用新型公开了一种用于螺钉拧紧工具的枪头，包括连接座、拧紧部及快拆部；拧紧部转动连接在连接座的内腔，包括主轴和连接轴；连接轴的第一端嵌设在主轴的内腔，第二端伸出连接座以连接螺丝刀批头；连接轴第二端的轴杆上开设有圆孔；快拆部包括套筒、压簧和钢珠；套筒滑动连接在连接轴的第二端且其内壁固定有环形凸台；压簧套设在连接轴上且其两端分别与环形凸台和与其相对的套筒的内壁面抵接；钢珠置于圆孔内，套筒滑动可使环形凸台挤压钢珠以将其卡入螺丝刀批头的尾部沟槽内。本实用新型能够实现螺丝刀批头和螺钉拧紧工具之间的快速拆卸，可以适配不同型号的螺钉的拧紧工作。

Claims

1. A gun head for a screw tightening tool, characterized in that, include: Connector (1), A tightening part (2) is rotatably connected to the inner cavity of the connecting seat (1); the tightening part (2) includes a hollow main shaft (21) and a connecting shaft (22); the first end of the connecting shaft (22) is embedded in the inner cavity of the main shaft (21), and the extension of the second end extends out of the connecting seat (1) to connect a screwdriver bit; a round hole is provided on the shaft of the connecting shaft (22) corresponding to its second end extension; The quick-release part (3) includes a sleeve (31), a compression spring (32), and a steel ball (33); the sleeve (31) is slidably sleeved on the extension section and has an annular boss extending from its inner wall; the compression spring (32) is sleeved on the connecting shaft (22) and its two ends abut against the annular boss and the two side walls opposite to the sleeve (31), respectively; the steel ball (33) is placed in the round hole, and the sliding of the sleeve (31) can cause the annular boss to squeeze the steel ball (33) to lock it into the tail groove of the screwdriver bit.

2. A nosepiece for a screwdriving tool according to claim 1, characterized in that The quick-release part (3) also includes a C-shaped retaining ring (35) and a retaining ring (34); the outer wall of the second end of the connecting shaft (22) is provided with an annular shaft groove, the C-shaped retaining ring (35) is sleeved on the connecting shaft (22) and its C-shaped inner wall is engaged in the shaft groove; the retaining ring (34) is sleeved on the connecting shaft (22) and one side wall of the retaining ring (34) abuts against the side wall of the C-shaped retaining ring (35), and the other side wall abuts against the end of the compression spring (32) away from the annular boss.

3. A nosepiece for a screwdriving tool according to claim 1, characterized in that It also includes a crescent-shaped connecting shaft (5), which is detachably connected to the inner cavity of the first end of the connecting shaft (22) and can be engaged with a notch-type screwdriver bit.

4. A nosepiece for a screwdriving tool according to claim 3, characterised in that The outer wall of the connecting shaft (22) is provided with a pin hole, and the pin (51) passes through the pin hole and connects to the crescent connecting shaft (5) to restrict it to the inner cavity of the connecting shaft (22).

5. A nosepiece for a screwdriving tool according to claim 4, characterized in that It also includes a buffer spring (4); the outer wall of the main shaft (21) facing the connecting shaft (22) has two symmetrically arranged buffer grooves (211), and the two ends of the pin (51) are slidably connected in the two buffer grooves (211); the buffer spring (4) is sleeved on the connecting shaft (22) and one end of it abuts against the end face of the main shaft (21), and the other end is fixed on the outer wall of the connecting shaft (22).

6. A nosepiece for a screwdriving tool according to claim 5, characterized in that A limiting plate (221) is fixed to the outer wall of the connecting shaft (22), and the end of the buffer spring (4) away from the main shaft (21) abuts against the panel of the limiting plate (221).

7. A nosepiece for a screwdriving tool according to claim 1, characterized in that The tightening part (2) also includes a bushing (23), which is embedded in the inner wall of the main shaft (21). The output shaft of the screw tightening tool is embedded in the bushing (23) to drive the rotation of the main shaft (21).

8. A nosepiece for a screwdriving tool according to claim 1, characterized in that The connecting seat (1) includes a seat body (11) and a protective cover (12); the tightening part (2) is placed inside the seat body (11), and one end of the seat body (11) can be engaged with the head of a screw tightening tool; the protective cover (12) is threadedly connected to the outer wall of the other end of the seat body (11).

9. A nosepiece for a screwdriving tool according to claim 8, characterized in that The inner wall of the seat (11) is fitted with a first bearing (24) and a second bearing (25); the outer wall of the main shaft (21) is interference-fitted with the inner ring of the first bearing (24); the outer wall of the connecting shaft (22) is interference-fitted with the inner ring of the second bearing (25).

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