Multi-section type mechanical arm fixing support

Abstract

The invention discloses a multi-section type mechanical arm fixing support, and relates to the field of mechanical arms, the multi-section type mechanical arm fixing support comprises a mounting seat and a tail end mounting piece, the mounting seat and the tail end mounting piece are connected through an adjustable supporting arm, and the adjustable supporting arm is composed of a plurality of supporting parts which are connected with one another; the supporting part comprises a connecting rod A, a universal ball mounting cavity is formed in one end of the connecting rod A, a universal ball is movably mounted in the universal ball mounting cavity, and a connecting bolt is fixedly connected to the universal ball; the multi-section type mechanical arm fixing support can replace traditional medical staff to hold objects (such as a drag hook, a laparoscope and an atomizer) by hand, the position of the fixed and supported object can be conveniently and flexibly adjusted, the multi-section type mechanical arm fixing support is suitable for various application scenes, operation is easy and convenient, flexibility is high, the held part can be stably supported for a long time, and the medical staff can use the multi-section type mechanical arm fixing support conveniently. And the workload of medical staff is greatly reduced, so that medical human resources are fully utilized.

Description

Technical Field

[0001] The invention relates to a mechanical arm technology, and in particular to a multi-section mechanical arm fixing bracket. Background Art

[0002] In current clinical practice, when doctors perform open surgery on patients in the operating room, they often need an assistant to hold a retractor to open the patient's abdominal cavity; and when doctors perform laparoscopic surgery on patients, they need an assistant to hold the laparoscope to facilitate the doctor's operation; and when patients are undergoing nebulization, they need to hold the nebulizer manually, especially for unconscious patients, who need a nurse to hold the nebulizer at the bedside during the nebulization process; and there are other similar scenarios that require doctors or nurses to perform the same action for a long time. Not only is the action monotonous, but medical staff also hold objects in the same posture for a long time, which can easily cause soreness and unconscious shaking of the arms, which not only greatly wastes medical human resources, but also makes it difficult for medical staff to maintain the stability of the held objects when holding them, which affects the smooth operation of the surgeon.

[0003] In response to this situation, the present invention provides a multi-section robotic arm fixing bracket, which fixes objects (such as retractors, laparoscopes, nebulizers, etc.) through a robotic arm whose position can be flexibly adjusted, replacing the traditional method of medical staff holding objects by hand. It can not only provide stable support for the held objects for a long time, but also greatly reduce the workload of medical staff, so that medical human resources can be fully utilized. Summary of the invention

[0004] The object of the present invention is to provide a multi-section mechanical arm fixing bracket to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a multi-section mechanical arm fixing bracket, comprising a mounting seat and an end mounting piece, wherein the mounting seat and the end mounting piece are connected via an adjustable support arm, and the adjustable support arm is composed of a plurality of mutually connected support parts;

[0006] The supporting part includes a connecting rod A, one end of which is provided with a universal ball installation cavity, a universal ball is movably installed inside the universal ball installation cavity, a connecting bolt is fixedly connected to the universal ball, a connecting rod B is hingedly installed on the end of the connecting rod A away from the universal ball, a threaded hole A matching the connecting bolt is provided on the end of the connecting rod B away from the connecting rod A, an installation cavity A is provided inside the connecting rod A, a resistance increasing mechanism is provided inside the installation box 1, and a locking mechanism is also provided on the connecting rod A.

[0007] Furthermore, a mounting cavity B is provided on the inner wall of the universal ball mounting cavity.

[0008] Furthermore, the resistance increasing mechanism includes a U-shaped connecting block, on which a connecting rod C and a connecting rod D are hingedly installed inside the U-shaped connecting block, a connecting rod E is hingedly installed on one end of the connecting rod C away from the U-shaped connecting block, the other end of the connecting rod E movably passes through the connecting rod A and extends to the inside of the device cavity B, and the end of the connecting rod E extending to the inside of the device cavity B is fixedly connected to an arc-shaped rubber resistance increasing block compatible with a universal ball, and a T-shaped hollow connecting block is hingedly installed on one end of the connecting rod D away from the U-shaped connecting block, and connecting rods F are hingedly installed on the T-shaped hollow connecting block and on both sides of the connecting rod D, and the other ends of the two connecting rods F are respectively hingedly installed with a rectangular connecting block and a T-shaped connecting block, and an annular rubber resistance increasing block is fixedly connected to the T-shaped connecting block.

[0009] Furthermore, the rectangular connecting block is hingedly mounted to the connecting rod B, and the T-shaped connecting block is pivotally mounted to the connecting rod A.

[0010] Furthermore, the arc-shaped rubber resistance-increasing block is disposed in contact with the universal ball, and the annular rubber resistance-increasing block is disposed in contact with the connecting rod A.

[0011] Furthermore, the locking mechanism includes a cylinder embedded in the connecting rod A, and the telescopic end of the cylinder is fixedly connected to the U-shaped connecting block.

[0012] Furthermore, the locking mechanism includes a threaded hole B and a tension spring, the threaded hole B is opened on the connecting rod A, the tension spring is fixedly installed between the connecting rod A and the U-shaped connecting block, and a movable rod is movably inserted inside the threaded hole B, one end of the movable rod is rotatably connected to the U-shaped connecting block, and the other end of the movable rod is fixedly connected to a locking bolt, and the other end of the locking bolt is fixedly connected to a knob.

[0013] Compared with the prior art, the multi-section robotic arm fixing bracket provided by the present invention can replace the traditional medical staff in holding objects (such as retractors, laparoscopes, nebulizers, etc.), facilitates flexible adjustment of the position of the fixed supported objects, is suitable for a variety of application scenarios, and is simple and convenient to operate and has high flexibility. It can not only provide stable support for the held objects for a long time, but also greatly reduce the workload of medical staff, so that medical human resources can be fully utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0016] Figure 2 A cross-sectional view of a connecting rod A and a connecting rod B provided in an embodiment of the present invention;

[0017] Figure 3 A schematic diagram of the structure of a resistance increasing mechanism provided in an embodiment of the present invention;

[0018] Figure 4 A schematic diagram of the structure of a cylinder and a U-shaped connecting block provided in an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of a cylinder and a U-shaped connecting block provided in an embodiment of the present invention from another angle;

[0020] Figure 6 A schematic diagram of the structure of the knob and connecting rod A provided in an embodiment of the present invention;

[0021] Figure 7 A schematic diagram of the structure of a locking screw and a U-shaped connecting block provided in an embodiment of the present invention;

[0022] Figure 8 A schematic diagram from another angle of structures such as a locking screw and a U-shaped connecting block provided in an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Mounting seat; 2. End mounting piece; 3. Connecting rod A; 4. Universal ball mounting cavity; 5. Universal ball; 6. Connecting bolt; 7. Connecting rod B; 8. Threaded hole A; 9. Installation cavity A; 10. Installation cavity B; 11. U-shaped connecting block; 12. Connecting rod C; 13. Connecting rod D; 14. Connecting rod E; 15. Arc-shaped rubber resistance-increasing block; 16. T-shaped hollow connecting block; 17. Connecting rod F; 18. Rectangular connecting block; 19. T-shaped connecting block; 20. Annular rubber resistance-increasing block; 21. Cylinder; 22. Threaded hole B; 23. Tension spring; 24. Movable rod; 25. Locking bolt; 26. Knob. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1:

[0027] See also Figure 1-Figure 3 A multi-section mechanical arm fixing bracket comprises a mounting seat 1 and an end mounting member 2, wherein the mounting seat 1 and the end mounting member 2 are connected via an adjustable support arm, and the adjustable support arm is composed of a plurality of interconnected support parts;

[0028] The support part includes a connecting rod A3, a universal ball installation cavity 4 is provided at one end of the connecting rod A3, a device cavity B10 is provided on the inner wall of the universal ball installation cavity 4, a universal ball 5 is movably installed inside the universal ball installation cavity 4, a connecting bolt 6 is fixedly connected to the universal ball 5, a connecting rod B7 is hingedly installed at one end of the connecting rod A3 away from the universal ball 5, a threaded hole A8 matched with the connecting bolt 6 is provided at one end of the connecting rod B7 away from the connecting rod A3, a device cavity A9 is provided inside the connecting rod A3, a resistance increasing mechanism is provided inside the device box 1, and a locking mechanism is also provided on the connecting rod A3;

[0029] The connecting rod B7 on the support part close to the mounting seat 1 is fixedly connected to the mounting seat 1, the connecting bolt 6 on the support part away from the mounting seat 1 is threadedly connected to the end mounting member 2, and the two adjacent support parts are threadedly connected through the connecting bolt 6 and the threaded hole A8;

[0030] Through the coordinated use of structures such as the mounting seat 1, multiple adjustable support arms, the end mounting part 2, the resistance increasing mechanism and the locking mechanism, objects (such as retractors, laparoscopes, nebulizers, etc.) can be stably supported, replacing the traditional method of medical staff holding objects (such as retractors, laparoscopes, nebulizers, etc.), and it is convenient to flexibly adjust the position of the fixed supported object. It is suitable for a variety of application scenarios, and the operation is simple and convenient, with high flexibility. It can not only stably support the held object for a long time, but also greatly reduce the workload of medical staff, so that medical human resources can be fully utilized.

[0031] The resistance increasing mechanism comprises a U-shaped connecting block 11, a connecting rod C12 and a connecting rod D13 are hingedly installed inside the U-shaped connecting block 11, a connecting rod E14 is hingedly installed at one end of the connecting rod C12 away from the U-shaped connecting block 11, the other end of the connecting rod E14 movably passes through the connecting rod A3 and extends to the inside of the device cavity B10, and an arc-shaped rubber resistance increasing block 15 adapted to the universal ball 5 is fixedly connected to one end of the connecting rod E14 extending to the inside of the device cavity B10, and a T-shaped hollow connecting rod 15 is hingedly installed at one end of the connecting rod D13 away from the U-shaped connecting block 11. Connecting block 16, connecting rods F17 are hingedly installed on the T-shaped hollow connecting block 16 and on both sides of the connecting rod D13, and the other ends of the two connecting rods F17 are respectively hingedly installed with rectangular connecting blocks 18 and T-shaped connecting blocks 19, and an annular rubber resistance-increasing block 20 is fixedly connected to the T-shaped connecting block 19, the rectangular connecting block 18 is hingedly installed on the connecting rod B7, the T-shaped connecting block 19 is pivotally installed on the connecting rod A3, the arc-shaped rubber resistance-increasing block 15 is arranged to abut against the universal ball 5, and the annular rubber resistance-increasing block 20 is arranged to abut against the connecting rod A3.

[0032] Working principle: When the fixing bracket needs to be used to support and fix an object (retractor, laparoscope or nebulizer, etc.), the staff first fixes the mounting seat 1 at a suitable position in the area to be used (such as an operating table or a hospital bed) to complete the installation and fixation of the fixing bracket, and then adaptively replaces the end mounting member 2 according to the type of the support to be fixed. The end mounting member 2 can be disassembled by rotating the end mounting member 2 to release the threaded connection with the connecting bolt 6 on the support part. Then, according to the type of the support to be fixed, the matching end mounting member 2 is screwed in the reverse direction so that it is threadedly installed on the connecting bolt 6 on the support part;

[0033] When the end mounting part 2 is replaced as required, the object to be fixedly supported (retractor, laparoscope or nebulizer, etc.) is then fixedly mounted on the end mounting part 2. Different types of end mounting parts 2 have different functions of fixing objects. For example, the end mounting part 2 is provided with hooks, mounting holes, straps, clamps, etc. to facilitate the support of different types of objects.

[0034] After the object to be fixed and supported is installed on the end mounting member 2, the staff then moves the end mounting member 2 with one hand to adjust its position, thereby adjusting the position of the object to be fixed and supported, and the other hand can appropriately adjust the positions of multiple supporting parts to complete the adjustment of the position of the end mounting member 2, and in the process of adjusting the position of the end mounting member 2, since the arc-shaped rubber resistance-increasing block 15 is in abutment with the universal ball 5, it can provide a certain damping when the universal ball 5 rotates relative to the universal ball mounting cavity 4, so as to provide a preliminary positioning effect for the universal ball 5 after rotation, and since the annular rubber resistance-increasing block 20 is in abutment with the connecting rod A3, it can provide a certain damping when the connecting rod A3 rotates relative to the connecting rod, so as to provide a preliminary positioning effect for the connecting rod A3 and the connecting rod B7 after rotation, so that after the staff releases their hands, the end mounting member 2 and the supporting part can still be in the adjusted state;

[0035] After the position adjustment of the object to be fixed and supported is completed, the locking mechanism is driven to operate, and the U-shaped connecting block 11 is pushed to move by the locking mechanism, and is pushed to move by the connecting rod C12 and the connecting rod D13, and then the annular rubber resistance-increasing block 20 is pushed to move toward the side close to the universal ball 5 through the cooperation of the connecting rod E14, the T-shaped hollow connecting block 16, the connecting rod six and the T-shaped connecting block 19, and the annular rubber resistance-increasing block 20 is pushed to move toward the side of the connecting rod A3, so that the annular rubber resistance-increasing block 20 is more tightly abutted against the universal ball 5, thereby further locking the universal ball 5, and the annular rubber resistance-increasing block 20 is more tightly abutted against the connecting rod A3, thereby further locking the connecting rod A3 and the connecting rod B7, so as to ensure that the fixed bracket can stably support the object.

[0036] Embodiment 2:

[0037] See also Figure 1 , Figure 4 and Figure 5 This embodiment provides a technical solution based on the first embodiment: the locking mechanism includes a cylinder 21 embedded in the connecting rod A3, and the telescopic end of the cylinder 21 is fixedly connected to the U-shaped connecting block 11.

[0038] By starting the cylinder 21, the telescopic end of the cylinder 21 extends, driving the U-shaped connecting block 11 to move, thereby driving the resistance increasing mechanism to operate, further increasing the friction between the universal ball 5 and the arc-shaped rubber resistance increasing block 15. At the same time, the friction between the annular rubber resistance increasing block 20 and the connecting rod A3 is further improved, thereby achieving further locking and fixing of the support part, thereby improving the supporting effect of the fixed bracket on the object.

[0039] Embodiment three:

[0040] See also Figure 6-Figure 8 This embodiment provides a technical solution based on the first embodiment: the locking mechanism includes a threaded hole B22 and a tension spring 23, the threaded hole B22 is opened on the connecting rod A3, the tension spring 23 is fixedly installed between the connecting rod A3 and the U-shaped connecting block 11, and a movable rod 24 is movably inserted inside the threaded hole B22, one end of the movable rod 24 is rotatably connected to the U-shaped connecting block 11, and the other end of the movable rod 24 is fixedly connected to a locking bolt 25, and the other end of the locking bolt 25 is fixedly connected to a knob 26.

[0041] The U-shaped connecting block 11 is pulled by the elastic force of the tension spring 23, so that the arc-shaped rubber resistance-increasing block 15 and the annular rubber resistance-increasing block 20 are respectively abutted against the universal ball 5 and the connecting rod A3, and the friction between the two is used to perform a preliminary locking effect on the support part, which is convenient for the staff to adjust the positions of multiple support parts, and can play a preliminary positioning effect after the position adjustment is completed, which can free the staff's hands and facilitate the staff to perform the next step of the operation. Then, the staff turns the knob 26 to drive the locking screw to rotate, so that it is threadedly connected with the threaded hole B22, and pushes the movable rod 24 and the U-shaped connecting block 11 to move, thereby driving the resistance-increasing mechanism to operate, further increasing the friction between the universal ball 5 and the arc-shaped rubber resistance-increasing block 15. At the same time, the friction between the annular rubber resistance-increasing block 20 and the connecting rod A3 is further improved, thereby achieving further locking and fixing of the support part, thereby improving the supporting effect of the fixed bracket on the object.

[0042] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-section mechanical arm fixing bracket, characterized in that: It comprises a mounting seat (1) and an end mounting piece (2), wherein the mounting seat (1) and the end mounting piece (2) are connected via an adjustable support arm, and the adjustable support arm is composed of a plurality of mutually connected support parts; The support portion comprises a connecting rod A (3), one end of the connecting rod A (3) is provided with a universal ball installation cavity (4), a universal ball (5) is movably installed inside the universal ball installation cavity (4), a connecting bolt (6) is fixedly connected to the universal ball (5), a connecting rod B (7) is hingedly installed on the end of the connecting rod A (3) away from the universal ball (5), a threaded hole A (8) matched with the connecting bolt (6) is provided on the end of the connecting rod B (7) away from the connecting rod A (3), a device cavity A (9) is provided inside the connecting rod A (3), a resistance increasing mechanism is provided inside the device box, and a locking mechanism is also provided on the connecting rod A (3).

2. A multi-section mechanical arm fixing bracket according to claim 1, characterized in that: An installation cavity B (10) is provided on the inner wall of the universal ball installation cavity (4).

3. A multi-section mechanical arm fixing bracket according to claim 2, characterized in that: The resistance increasing mechanism comprises a U-shaped connecting block (11), a connecting rod C (12) and a connecting rod D (13) being hingedly mounted inside the U-shaped connecting block (11), a connecting rod E (14) being hingedly mounted on one end of the connecting rod C (12) away from the U-shaped connecting block (11), the other end of the connecting rod E (14) movably passing through the connecting rod A (3) and extending into the interior of the device cavity B (10), and the end of the connecting rod E (14) extending into the interior of the device cavity B (10) being fixedly connected to a connecting rod which is connected to a universal ball (5). An adapted arc-shaped rubber resistance-enhancing block (15) is provided, and a T-shaped hollow connection block (16) is hingedly installed at one end of the connecting rod D (13) away from the U-shaped connection block (11), and connecting rods F (17) are hingedly installed on the T-shaped hollow connection block (16) and on both sides of the connecting rod D (13), and the other ends of the two connecting rods F (17) are respectively hingedly installed with a rectangular connection block (18) and a T-shaped connection block (19), and an annular rubber resistance-enhancing block (20) is fixedly connected to the T-shaped connection block (19).

4. The multi-section mechanical arm fixing bracket according to claim 3, characterized in that: The rectangular connecting block (18) is hingedly mounted on the connecting rod B (7), and the T-shaped connecting block (19) is pivotally mounted on the connecting rod A (3).

5. The multi-section mechanical arm fixing bracket according to claim 3, characterized in that: The arc-shaped rubber resistance-increasing block (15) is disposed in contact with the universal ball (5), and the annular rubber resistance-increasing block (20) is disposed in contact with the connecting rod A (3).

6. The multi-section mechanical arm fixing bracket according to claim 3, characterized in that: The locking mechanism comprises a cylinder (21) embedded in the connecting rod A (3), and the telescopic end of the cylinder (21) is fixedly connected to the U-shaped connecting block (11).

7. The multi-section mechanical arm fixing bracket according to claim 3, characterized in that: The locking mechanism comprises a threaded hole B (22) and a tension spring (23), wherein the threaded hole B (22) is formed on the connecting rod A (3), the tension spring (23) is fixedly installed between the connecting rod A (3) and the U-shaped connecting block (11), and a movable rod (24) is movably inserted into the threaded hole B (22), one end of the movable rod (24) is rotatably connected to the U-shaped connecting block (11), and the other end of the movable rod (24) is fixedly connected to a locking bolt (25), and the other end of the locking bolt (25) is fixedly connected to a knob (26).

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