Single-hand braking three-section arm structure of joint replacement surgical robot

Abstract

The utility model discloses a single-hand braking three-section arm structure of a joint replacement surgical robot, which can control the rotation and stop of two rotating shafts of a three-section arm by a single hand through a braking mechanism on a braking arm, can realize the rotation and stop of multiple shafts according to the same principle, and can realize the mutual reverse installation of pressing bolts. And rotation and stop of multiple shafts in any direction can be realized.

Description

Technical Field

[0001] The utility model relates to the field of electromechanical equipment, in particular to a single-hand brake three-section arm structure of a joint replacement surgical robot. Background Art

[0002] At present, in the medical field, in joint replacement surgery using robot-assisted equipment, oscillating saws play an important role. They are used for cutting during surgery. However, due to the large vibration of the oscillating saw, it is difficult to maintain flat cutting, which can lead to cutting errors or even surgical errors. Therefore, a three-section arm is needed to fix the oscillating saw at the end of the three-section arm so that the oscillating saw can maintain a flat state during movement. When the three-section arm is working, the three rotating axes need to be very smooth, but when the oscillating saw stops working, a certain resistance is required to the rotating axis to prevent the rotating axis from rotating at will.

[0003] In summary, a single-hand brake three-section arm structure of a joint replacement surgical robot is needed to address the deficiencies in the prior art. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a single-hand brake three-section arm structure of a joint replacement surgical robot, aiming to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a one-hand brake three-section arm structure of a joint replacement surgical robot, comprising a support arm, a brake arm is arranged on the support arm, a connecting arm is arranged on the brake arm, the two ends of the brake arm are respectively connected to the support arm and the connecting arm, a brake mechanism is arranged on the brake arm, the brake mechanism is fixedly connected to the brake arm, the support arm is locked with the brake arm through the brake mechanism, and the connecting arm is locked with the brake arm through the brake mechanism.

[0006] Optionally, the braking mechanism includes a pressing plate, a pressing seat, a pressing pin, a brake locking rod and a locking compression spring, the pressing pin is fixedly connected to the pressing plate, the pressing seat is fixedly connected to the brake arm, the brake locking rod is movably arranged in the brake arm, the locking compression spring is arranged between the pressing seat and the brake locking rod, a pin hole is arranged on the brake locking rod, the pressing pin is arranged in the pin hole, and an inclined surface is arranged on the pressing pin.

[0007] Optionally, a central rotating shaft is arranged between the brake arm and the connecting arm, a rotating shaft tooth groove is arranged on the central rotating shaft, a locking tooth is arranged on the brake locking rod, and the locking tooth corresponds to the rotating shaft tooth groove.

[0008] Optionally, a rotating column is provided on the support arm, the rotating column is fixedly connected to the support arm, and the rotating column corresponds to the brake locking rod.

[0009] Optionally, a rotating cover is provided on the rotating column, and the rotating cover is detachably connected to the rotating column.

[0010] Optionally, a rotating shaft is provided on the connecting arm, the rotating shaft is movably connected to the connecting arm, and a weight-reducing transverse hole is also provided on the connecting arm.

[0011] Beneficial effects of the utility model:

[0012] 1. In the present invention, the braking mechanism on the braking arm can realize the rotation and stop of the two rotating shafts of the three-section arm by one hand. The same principle can realize the rotation and stop of multiple shafts;

[0013] 2. In the present invention, the push pins are installed in opposite directions to each other, so that rotation and stopping of multiple axes in any direction can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of a planar structure of the utility model.

[0016] Figure 3 The utility model is a schematic diagram of a cross-sectional structure.

[0017] Figure 4 A schematic diagram of a cross-sectional structure of a push pin installed in reverse.

[0018] In the figure: 1. support arm; 2. brake arm; 3. brake mechanism; 4. connecting arm; 5. central rotating shaft; 6. rotating cover; 7. rotating shaft; 8. weight-reducing transverse hole; 11. rotating column; 31. pressing plate; 32. pressing seat; 33. pressing pin; 34. brake locking rod; 35. locking compression spring; 36. pin hole; 37. locking tooth; 51. rotating shaft tooth groove. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] In conjunction with the instruction manual Figure 1 -Attached Figure 4 , explain this technical solution

[0021] like Figure 1-Figure 3As shown, a single-hand brake three-section arm structure of a joint replacement surgical robot includes a support arm 1, a brake arm 2 is arranged on the support arm 1, a connecting arm 4 is arranged on the brake arm 2, two ends of the brake arm 2 are respectively connected to the support arm 1 and the connecting arm 4, a brake mechanism 3 is arranged on the brake arm 2, the brake mechanism 3 is fixedly connected to the brake arm 2, the support arm 1 is locked with the brake arm 2 through the brake mechanism 3, and the connecting arm 4 is locked with the brake arm 2 through the brake mechanism 3.

[0022] The brake mechanism 3 includes a pressing plate 31, a pressing seat 32, a pressing pin 33, a brake locking rod 34 and a locking compression spring 35. The pressing pin 33 is fixedly connected to the pressing plate 31, the pressing seat 32 is fixedly connected to the brake arm 2, the brake locking rod 34 is movably arranged in the brake arm 2, the locking compression spring 35 is arranged between the pressing seat 32 and the brake locking rod 34, a pin hole 36 is arranged on the brake locking rod 34, the pressing pin 33 is arranged in the pin hole 36, and an inclined surface is arranged on the pressing pin 33.

[0023] A central rotating shaft 5 is arranged between the brake arm 2 and the connecting arm 4, a rotating shaft tooth groove 51 is arranged on the central rotating shaft 5, a locking tooth 37 is arranged on the brake locking rod 34, the locking tooth 37 corresponds to the rotating shaft tooth groove 51, a rotating column 11 is arranged on the support arm 1, the rotating column 11 is fixedly connected to the support arm 1, the rotating column 11 corresponds to the brake locking rod 34, a rotating pressure cover 6 is arranged on the rotating column 11, the rotating pressure cover 6 is detachably connected to the rotating column 11, a rotating shaft 7 is arranged on the connecting arm 4, the rotating shaft 7 is movably connected to the connecting arm 4, and a weight-reducing transverse hole 8 is also arranged on the connecting arm 4.

[0024] The working principle of the utility model is as follows: the end of the support arm 1 is hinged to the brake arm 2, the brake arm 2 is hinged to the central rotating shaft 5, the central rotating shaft 5 is hinged to the connecting arm 4, and the connecting arm 4 is hinged to the rotating shaft 7.

[0025] The pressing piece 31 is fixedly connected to the pressing latch 33, and the pressing latch 33 is inserted into the guide hole of the locking latch. When the pressing piece 31 is pressed, as the pressing latch 33 is displaced, the wedge-shaped end of the pressing latch 33 pushes the brake locking rod 34 to move horizontally, so that the locking tooth 37 is disengaged from the rotating shaft tooth groove 51, so that each arm can rotate freely. When the pressing piece 31 is released, the locking compression spring 35 generates elastic force, pushing the brake locking rod 34 to the right, so that the locking tooth 37 is inserted into the rotating shaft tooth groove 51, so as to play the role of locking the rotation of each arm.

[0026] See Figure 4 If the locking pin is installed in reverse, the two shafts can be locked in different conditions, such as when the central shaft 5 rotates, the rotating column 11 is locked, or when the central shaft 5 is locked, the rotating column 11 rotates.

[0027] Through the braking mechanism on the brake arm, the rotation and stop of the two rotating shafts of the three-section arm can be controlled by one hand. The same principle can be used to realize the rotation and stop of multiple axes. By pressing the pins to install them in opposite directions, the rotation and stop of multiple axes can be realized in any direction.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A single-hand brake three-section arm structure of a joint replacement surgical robot, characterized in that: It includes a support arm, a brake arm is arranged on the support arm, a connecting arm is arranged on the brake arm, two ends of the brake arm are respectively connected to the support arm and the connecting arm, a brake mechanism is arranged on the brake arm, the brake mechanism is fixedly connected to the brake arm, the support arm is locked with the brake arm through the brake mechanism, and the connecting arm is locked with the brake arm through the brake mechanism.

2. The one-hand brake three-section arm structure of the joint replacement surgical robot according to claim 1, characterized in that: The brake mechanism includes a pressing plate, a pressing seat, a pressing pin, a brake locking rod and a locking compression spring, the pressing pin is fixedly connected to the pressing plate, the pressing seat is fixedly connected to the brake arm, the brake locking rod is movably arranged in the brake arm, the locking compression spring is arranged between the pressing seat and the brake locking rod, the brake locking rod is provided with a pin hole, the pressing pin is arranged in the pin hole, and the pressing pin is provided with an inclined surface.

3. The one-hand brake three-section arm structure of the joint replacement surgical robot according to claim 2, characterized in that: A central rotating shaft is arranged between the brake arm and the connecting arm, a rotating shaft tooth groove is arranged on the central rotating shaft, a locking tooth is arranged on the brake locking rod, and the locking tooth corresponds to the rotating shaft tooth groove.

4. The one-hand brake three-section arm structure of the joint replacement surgical robot according to claim 2, characterized in that: A rotating column is arranged on the supporting arm, the rotating column is fixedly connected to the supporting arm, and the rotating column corresponds to the brake locking rod.

5. The one-hand brake three-section arm structure of the joint replacement surgical robot according to claim 4, characterized in that: A rotating cover is arranged on the rotating column, and the rotating cover is detachably connected to the rotating column.

6. The one-hand brake three-section arm structure of the joint replacement surgical robot according to claim 1, characterized in that: A rotating shaft is arranged on the connecting arm, and the rotating shaft is movably connected to the connecting arm. A weight-reducing transverse hole is also arranged on the connecting arm.

Images