阅读说明：本技术 一种医疗机械关节部的线束连接结构 (Wire harness connecting structure of medical mechanical joint part ) 是由 胡惠娟 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种医疗机械关节部的线束连接结构,包括第一臂杆和第二臂杆,第二臂杆的端部内插接有竖直的旋转轴,旋转轴的上端成型有正六边形的限位凸块,第二臂杆内成型有与限位凸块相对的凹槽,限位凸块插接在第二臂杆的凹槽,第二臂杆上插接有螺钉,螺钉螺接固定在限位凸块上；第二臂杆内插接有第一排线,旋转轴的外壁上成型有贯穿旋转轴下端面的线槽,第一排线穿过旋转轴的线槽固定有第一接线插座,第一接线插座固定在旋转轴的下端面上。(The invention discloses a wire harness connecting structure of a joint part of medical machinery, which comprises a first arm rod and a second arm rod, wherein a vertical rotating shaft is inserted into the end part of the second arm rod, a regular-hexagon limiting lug is formed at the upper end of the rotating shaft, a groove opposite to the limiting lug is formed in the second arm rod, the limiting lug is inserted in the groove of the second arm rod, a screw is inserted on the second arm rod, and the screw is screwed and fixed on the limiting lug; the first flat cable is inserted in the second arm rod, a wire groove penetrating through the lower end face of the rotating shaft is formed in the outer wall of the rotating shaft, a first wiring socket is fixed on the wire groove of the rotating shaft, and the first wiring socket is fixed on the lower end face of the rotating shaft.)

1. A wire harness connection structure of a medical mechanical joint part comprises a first arm rod (1) and a second arm rod (2), wherein a vertical rotating shaft (3) is inserted into the end part of the second arm rod (2), a regular-hexagon limiting lug (31) is formed at the upper end of the rotating shaft (3), a groove (21) opposite to the limiting lug (31) is formed in the second arm rod (2), the limiting lug (31) is inserted into the groove (21) of the second arm rod (2), a screw (4) is inserted into the second arm rod (2), and the screw (4) is fixed on the limiting lug (31) in a threaded manner; the method is characterized in that: a first flat cable (5) is inserted in the second arm lever (2), a wire slot (32) penetrating through the lower end face of the rotating shaft (3) is formed in the outer wall of the rotating shaft (3), the first flat cable (5) penetrates through the wire slot (32) of the rotating shaft (3) and is fixed with a first wiring socket (6), and the first wiring socket (6) is fixed on the lower end face of the rotating shaft (3);

a cylindrical ceramic seat (7) is inserted into the end part of the first arm rod (1), a counter bore (71) is formed in the upper end face of the ceramic seat (7), and a retainer ring (72) is formed on the outer wall of the ceramic seat (7) on the outer side of the counter bore (71); the upper end surface of the ceramic seat (7) is abutted against the lower end surface of the rotating shaft (3); the first wiring socket (6) is inserted in a counter bore (71) of the ceramic seat (7), a first wiring plug (9) is fixed in the counter bore (71) of the ceramic seat (7), and the first wiring plug (9) is inserted in the first wiring socket (6); the ceramic seat (7) is inserted and sleeved with a locking threaded sleeve (8), and the locking threaded sleeve (8) is fixed at the lower end of the rotating shaft (3) in a threaded manner; a plurality of conducting rings (11) are fixed on the outer wall of the lower end of the ceramic seat (7) in an inserting way, a second flat cable (10) is inserted in the ceramic seat (7), one end of the second flat cable (10) is fixedly connected with the first wiring plug (9), and each conducting wire at the other end of the second flat cable (10) is fixedly connected with the conducting rings (11) respectively;

a cylindrical annular insulating protective sleeve (12) is fixed at the lower end of the ceramic seat (7) in an inserting way, the insulating protective sleeve (12) is fixed in the first arm rod (1), a boss (121) is formed on the outer wall of one end of the insulating protective sleeve (12), a plurality of step holes (122) opposite to the conducting ring (11) are formed in the boss (121), a T-shaped carbon brush (13), a conductive spring (14) and a conductive block (15) are inserted into a step hole (122) of the boss (121), one end of the carbon brush (13) extends out of the inner wall of the insulating protective sleeve (12) and is elastically pressed against the conductive ring (11), the other end of the carbon brush (13) is pressed against the conductive spring (14), the other end of the conductive spring (14) is pressed against the conductive block (15), the conductive block (15) is fixedly connected with a second wiring socket (16), and the second wiring socket (16) is fixed on the boss (121); a third flat cable (18) is inserted in the first arm lever (1), and a second wiring plug (17) is fixedly connected to the third flat cable (18); the second connection plug (17) is plugged into the second connection socket (16).

2. The wire harness connecting structure of a joint part of a medical machine according to claim 1, wherein: the conducting rings (11) are uniformly distributed on the ceramic base (7) in a linear mode, and gaps are formed between every two adjacent conducting rings (11).

3. The wire harness connecting structure of a joint part of a medical machine according to claim 1, wherein: an annular cutting groove is formed in the outer wall of the lower end of the ceramic seat (7), the conducting ring (11) is fixedly connected to the bottom surface of the annular cutting groove in an inserting mode, the diameter of the outer wall of the conducting ring (11) is larger than that of the bottom surface of the annular cutting groove, and the diameter of the outer wall of the conducting ring (11) is smaller than that of the outer wall of the upper end of the ceramic seat (7).

4. The wire harness connecting structure of a joint part of a medical machine according to claim 1, wherein: the wire casing (32) in the rotating shaft (3) comprises a vertical groove and a horizontal groove, and a circular arc-shaped guide groove is arranged between the vertical groove and the horizontal groove.

5. The wire harness connecting structure of a joint part of a medical machine according to claim 1, wherein: the lower end face of the upper boss (121) of the insulating protective sleeve (12) is formed with an insertion hole (123) penetrating through the stepped hole (122), and one end of the carbon brush (13) close to the conductive spring (14) is formed with a limiting hole (131) opposite to the insertion hole (123).

6. The wire harness connecting structure of a joint part of a medical machine according to claim 5, wherein: the T-shaped head part of the carbon brush (13) is inserted in the boss (121).

7. The wire harness connecting structure of a joint part of a medical machine according to claim 1, wherein: the diameter of the inner wall of the insulating protective sleeve (12) is larger than that of the outer wall of the ceramic seat (7); the central axis of the insulating protective sleeve (12), the central axis of the ceramic seat (7) and the central axis of the rotating shaft (3) are on the same straight line.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a wire harness connecting structure of a medical mechanical joint part.

Background

Some current medical machines are composed of a plurality of mechanical arms, such as a robot manipulator in minimally invasive surgery; a rotary joint is arranged between the mechanical arms, and a wire harness is arranged on each mechanical arm; the wire passing of the rotary joint is always a difficult point of the structural design of the robot, the structure of the joint, the angle of relative motion and the like are restricted, the existing wire harnesses arranged on the mechanical arm are integrally connected, and when the mechanical arm operates, the wire harnesses at the rotary joint can be stretched, shortened, twisted and the like due to the rotation of the joint; the stretching, shortening, twisting, etc. of the wire harness may cause the wire harness to be damaged, thereby causing the mechanical arm to fail.

Disclosure of Invention

The invention aims to provide a wire harness connecting structure of a medical mechanical joint part aiming at the defects of the prior art, wherein a wire harness on a medical mechanical arm is designed into a segmented structure, a plug and a socket can be electrically connected with each other, and meanwhile, an electric connecting structure of a conducting ring and a carbon brush is arranged at a rotary joint; the conditions of stretching, shortening, twisting and the like of the wire harness can be avoided in the operation process of the mechanical arm.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a wire harness connecting structure of a medical mechanical joint part comprises a first arm rod and a second arm rod, wherein a vertical rotating shaft is inserted into the end part of the second arm rod, a regular-hexagon limiting lug is formed at the upper end of the rotating shaft, a groove opposite to the limiting lug is formed in the second arm rod, the limiting lug is inserted in the groove of the second arm rod, a screw is inserted on the second arm rod, and the screw is fixed on the limiting lug in a threaded manner; the method is characterized in that: a first flat cable is inserted in the second arm rod, a wire slot penetrating through the lower end face of the rotating shaft is formed in the outer wall of the rotating shaft, a first wiring socket is fixed on the wire slot of the rotating shaft through which the first flat cable penetrates, and the first wiring socket is fixed on the lower end face of the rotating shaft;

a cylindrical ceramic seat is inserted into the end part of the first arm rod, a counter bore is formed in the upper end face of the ceramic seat, and a retainer ring is formed on the outer wall of the ceramic seat outside the counter bore; the upper end surface of the ceramic seat is abutted against the lower end surface of the rotating shaft; the first wiring socket is inserted in the counter bore of the ceramic seat, a first wiring plug is fixed in the counter bore of the ceramic seat, and the first wiring plug is inserted in the first wiring socket; the ceramic seat is inserted and sleeved with a locking threaded sleeve, and the locking threaded sleeve is screwed and fixed at the lower end of the rotating shaft; a plurality of conducting rings are fixed on the outer wall of the lower end of the ceramic seat in an inserting way, a second flat cable is inserted in the ceramic seat, one end of the second flat cable is fixedly connected with the first wiring plug, and each conducting wire at the other end of the second flat cable is fixedly connected with the conducting rings respectively;

a cylindrical annular insulating protective sleeve is fixed at the lower end of the ceramic seat in an inserting and sleeving manner, the insulating protective sleeve is fixed in the first arm rod, a boss is formed on the outer wall of one end of the insulating protective sleeve, a plurality of step holes opposite to the conducting ring are formed in the boss, a T-shaped carbon brush, a conducting spring and a conducting block are inserted in the step holes of the boss, one end of the carbon brush extends out of the inner wall of the insulating protective sleeve and is elastically pressed on the conducting ring, the other end of the carbon brush is pressed on the conducting spring, the other end of the conducting spring is pressed on the conducting block, the conducting block is fixedly connected with the second wiring socket, and the second wiring socket; a third flat cable is inserted in the first arm rod, and a second wiring plug is fixedly connected to the third flat cable; the second connection plug is plugged in the second connection socket.

Preferably, the conducting rings are uniformly distributed on the ceramic base in a linear mode, and gaps are formed between every two adjacent conducting rings.

Preferably, an annular cutting groove is formed in the outer wall of the lower end of the ceramic seat, the conducting ring is fixedly connected to the bottom surface of the annular cutting groove in an inserting mode, the diameter of the outer wall of the conducting ring is larger than that of the bottom surface of the annular cutting groove, and the diameter of the outer wall of the conducting ring is smaller than that of the outer wall of the upper end of the ceramic seat.

Preferably, the wire casing in the rotation axis includes vertical groove and horizontal groove, is equipped with convex guide way between vertical groove and the horizontal groove.

Preferably, the lower end face of the boss on the insulating protective sleeve is formed with an insertion hole penetrating through the step hole, and one end of the carbon brush close to the conductive spring is formed with a limiting hole opposite to the insertion hole.

Preferably, the T-shaped head of the carbon brush is inserted into the boss.

Preferably, the diameter of the inner wall of the insulating protective sleeve is larger than that of the outer wall of the ceramic seat; the central axis of the insulating protective sleeve, the central axis of the ceramic seat and the central axis of the rotating shaft are on the same straight line.

The invention has the beneficial effects that: the wire harness on the medical mechanical arm is designed into a segmented structure, the plug and the socket can be electrically connected with each other, and meanwhile, the rotating joint is arranged to adopt an electric connection structure of a conducting ring and a carbon brush; the conditions of stretching, shortening, twisting and the like of the wire harness can be avoided in the operation process of the mechanical arm.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a first arm; 2. a second arm; 21. a groove; 3. a rotating shaft; 31. a limiting bump; 32. a wire slot; 4. a screw; 5. a first flat cable; 6. a first connection socket; 7. a ceramic base; 71. a counter bore; 72. a retainer ring; 8. locking the threaded sleeve; 9. a first connection plug; 10. a second flat cable; 11. conducting rings; 12. an insulating protective sleeve; 121. a boss; 122. a stepped bore; 123. a jack; 13. a carbon brush; 14. a conductive spring; 15. a conductive block; 16. a second connection socket; 17. a second connection plug; 18. and a third flat cable.

Detailed Description