Arc-shaped arm convenient to adjust

Abstract

The utility model relates to the technical field of medical instruments, and discloses an arc-shaped arm convenient to adjust, which comprises a bottom block, a plurality of universal wheels are fixedly mounted at the bottom of the bottom block, a driving mechanism is arranged at the bottom of the bottom block, the driving mechanism comprises a mounting groove, the mounting groove is arranged at the bottom of the bottom block, and the universal wheels are arranged on the mounting groove. A fixing disc is rotatably connected to the upper surface of the bottom block, a connecting rod is fixedly connected to the bottom of the fixing disc, when the arc-shaped arm is rotated, an output shaft of a starting motor drives a second gear to rotate, the second gear rotates to drive a first gear to rotate, and when the first gear rotates, the first gear drives the connecting rod to rotate; the connecting rod rotates to drive the fixing disc to rotate, the fixing disc rotates to drive the arc-shaped arm to rotate, when the connecting rod rotates, the limiting disc plays a role in limiting the connecting rod, and in the rotating process of the first gear and the second gear, the small gear drives the large gear, so that the rotating speed of the arc-shaped arm is reduced, and the rotating stability of the arc-shaped arm is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and more particularly to an arc-shaped arm which is easy to adjust. Background Art

[0002] The C-arm X-ray machine has good imaging chain quality control, and its imaging is two-dimensional, which is intuitive and clear, easy for doctors to master and convenient for promotion and use.

[0003] After searching, the application number is CN201821952064.1, and the announcement number is CN209644920U. It includes an arc-shaped arm, at least one group of imaging components arranged on the arc-shaped arm, and a control unit, wherein the imaging component is communicatively connected to the control unit; the arc-shaped arm X-ray imaging device also includes a support seat, wherein the support seat includes two supporting bosses that are opposite and spaced apart, an arc-shaped slide rail connected to the two supporting bosses and located between the two supporting bosses, and a matching piece connected to the arc-shaped arm to match the arc-shaped slide rail, wherein the matching piece moves along the arc-shaped slide rail to drive the arc-shaped arm to rotate around the central axis of the arc-shaped arm; the risk of the arc-shaped arm tilting can be prevented, and the stability of the arc-shaped arm rotating around the central axis of the arc-shaped arm can be enhanced, and the structure is simple and easy to operate. However, when the above-mentioned device is in use, the bottom of the arc-shaped arm cannot be rotated, and some devices rotate at a faster speed when rotating, thereby affecting the stability of the arc-shaped arm when rotating. For this reason, an arc-shaped arm that is easy to adjust is proposed. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an easily adjustable arc-shaped arm to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an arc-shaped arm that is easy to adjust, comprising a bottom block, a plurality of universal wheels are fixedly mounted on the bottom of the bottom block, and a driving mechanism is provided on the bottom of the bottom block;

[0006] The driving mechanism comprises a mounting groove, the mounting groove is provided at the bottom of the bottom block, a fixed plate is rotatably connected to the upper surface of the bottom block, a connecting rod is fixedly connected to the bottom of the fixed plate, and the connecting rod passes through the bottom block, an arc-shaped arm is fixedly installed on the upper surface of the fixed plate, and a mounting groove is provided at the bottom of the bottom block;

[0007] A driving assembly is arranged in the installation groove;

[0008] Preferably, the driving assembly includes a mounting plate, the mounting plate is fixedly connected between the surrounding inner walls of the mounting groove, the top of the mounting plate is fixedly connected to a motor, one end of the motor output shaft passes through the mounting plate and is fixedly connected to a second gear, the circumferential outer wall of the second gear is meshed with a first gear, the first gear is fixedly connected to a connecting rod, and a limiting unit is provided on the circumferential outer wall of the connecting rod. Through the setting of the driving assembly, when the arc arm is rotated, the motor is started so that the output shaft of the motor drives the second gear to rotate, and the rotation of the second gear drives the first gear to rotate. When the first gear rotates, the first gear drives the connecting rod to rotate, and the rotation of the connecting rod drives the fixed plate to rotate, and the rotation of the fixed plate drives the arc arm to rotate.

[0009] Preferably, the limiting unit includes a limiting plate, which is fixedly connected to the connecting rod, and the upper surface of the limiting plate is tightly fitted with the top inner wall of the mounting groove. A plurality of rotating components are provided on the upper surface of the mounting plate. When the connecting rod rotates, the limiting plate limits the connecting rod.

[0010] Preferably, the rotating assembly includes two fixed cylinders, the two fixed cylinders are fixedly connected to the upper surface of the mounting plate, the two fixed cylinders are slidably connected with sliding plates, the upper surfaces of the sliding plates are fixedly connected with mounting rods, the mounting rods are slidably connected to the fixed cylinders, a rolling unit is provided between the two fixed cylinders, and through the setting of the rotating assembly, the mounting rods can be conveniently installed through the fixed cylinders.

[0011] Preferably, the rolling unit includes a roller, which is rotatably connected between the mounting rods, and the circumferential outer wall of the roller is tightly fitted with the bottom of the first gear. When the first gear is installed, the bottom of the first gear contacts the circumferential outer wall of the roller and squeezes the roller, thereby improving the rotation effect of the first gear.

[0012] Preferably, a spring is provided in the fixed cylinder, one end of the spring is fixedly connected to the bottom of the sliding plate, and the other end of the spring contacts the upper surface of the mounting plate. When the roller is squeezed, the mounting rod squeezes the spring, thereby improving the contact effect between the roller and the bottom of the first gear.

[0013] Preferably, a protective component is provided on the upper surface of the mounting plate, and the protective component includes a protective shell, which is fixedly connected to the upper surface of the mounting plate, and the motor is located in the protective shell. The circumferential outer wall of the protective shell is provided with a plurality of penetrating heat dissipation holes. Through the provision of the protective component, the protective shell protects the motor, and the heat dissipation holes facilitate heat dissipation for the motor in the protective shell.

[0014] Technical effects and advantages of the utility model:

[0015] The utility model is provided with a driving mechanism. When the arc-shaped arm is rotated, the motor is started so that the output shaft of the motor drives the second gear to rotate, and the rotation of the second gear drives the first gear to rotate. When the first gear is rotating, the first gear drives the connecting rod to rotate, and the rotation of the connecting rod drives the fixed plate to rotate. The rotation of the fixed plate drives the arc-shaped arm to rotate. When the connecting rod rotates, the limit plate limits the connecting rod. During the rotation of the first gear and the second gear, the small gear drives the large gear, thereby reducing the rotation speed of the arc-shaped arm and improving the stability of the arc-shaped arm when rotating.

[0016] The utility model is provided with a protective component and a rotating component. When the first gear is installed, the bottom of the first gear contacts the circumferential outer wall of the roller and squeezes the roller, thereby improving the rotation effect of the first gear. When the roller is squeezed, the installation rod squeezes the spring, thereby improving the contact effect between the roller and the bottom of the first gear. The protective shell protects the motor, and the heat dissipation hole conveniently dissipates heat for the motor in the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the bottom block of the utility model.

[0020] Figure 4 It is a schematic diagram of an exploded cross-sectional view of the bottom block of the utility model.

[0021] Figure 5 It is a schematic cross-sectional structural diagram of the rotating assembly of the utility model.

[0022] The accompanying drawings are marked as follows: 1. bottom block; 2. universal wheel; 3. arc arm; 4. driving mechanism; 401. fixed plate; 402. connecting rod; 403. limit plate; 404. first gear; 405. motor; 406. second gear; 5. protective component; 501. protective shell; 502. heat dissipation hole; 6. mounting slot; 7. rotating component; 701. roller; 702. mounting rod; 703. fixed cylinder; 704. sliding plate; 705. spring; 8. mounting plate. Implementation

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Example

[0024] Reference Figure 1-Figure 4 The utility model provides an arc-shaped arm that is easy to adjust, including a bottom block 1, a plurality of universal wheels 2 are fixedly mounted on the bottom of the bottom block 1, and a driving mechanism 4 is provided on the bottom of the bottom block 1;

[0025] The driving mechanism 4 includes a mounting groove 6, which is opened at the bottom of the bottom block 1. The upper surface of the bottom block 1 is rotatably connected with a fixed plate 401, and the bottom of the fixed plate 401 is fixedly connected with a connecting rod 402, and the connecting rod 402 passes through the bottom block 1. The upper surface of the fixed plate 401 is fixedly installed with an arc-shaped arm 3, and the bottom of the bottom block 1 is provided with a mounting groove 6;

[0026] A drive assembly is provided in the mounting slot 6;

[0027] Among them, the driving component includes a mounting plate 8, which is fixedly connected between the inner walls around the mounting groove 6, and a motor 405 is fixedly connected to the top of the mounting plate 8. One end of the output shaft of the motor 405 passes through the mounting plate 8 and is fixedly connected to the second gear 406. The circumferential outer wall of the second gear 406 is meshed with a first gear 404, and the first gear 404 is fixedly connected to the connecting rod 402. The circumferential outer wall of the connecting rod 402 is provided with a limiting unit. Through the setting of the driving component, when the arc arm 3 is rotated, by starting the motor 405, the output shaft of the motor 405 drives the second gear 406 to rotate, and the rotation of the second gear 406 drives the first gear 404 to rotate. When the first gear 404 is rotating, the first gear 404 drives the connecting rod 402 to rotate, and the rotation of the connecting rod 402 drives the fixed plate 401 to rotate, and the rotation of the fixed plate 401 drives the arc arm 3 to rotate.

[0028] Among them, the limiting unit includes a limiting plate 403, which is fixedly connected to the connecting rod 402, and the upper surface of the limiting plate 403 is tightly fitted with the top inner wall of the mounting groove 6. A plurality of rotating components 7 are provided on the upper surface of the mounting plate 8. When the connecting rod 402 rotates, the limiting plate 403 plays a limiting role on the connecting rod 402.

[0029] In this embodiment, when the arc arm 3 is rotated, the motor 405 is started so that the output shaft of the motor 405 drives the second gear 406 to rotate, and the rotation of the second gear 406 drives the first gear 404 to rotate. When the first gear 404 is rotating, the first gear 404 drives the connecting rod 402 to rotate, and the rotation of the connecting rod 402 drives the fixed plate 401 to rotate. The rotation of the fixed plate 401 drives the arc arm 3 to rotate. When the connecting rod 402 rotates, the limit plate 403 limits the connecting rod 402. During the rotation of the first gear 404 and the second gear 406, the small gear drives the large gear, thereby reducing the rotation speed of the arc arm 3 and improving the stability of the arc arm 3 during rotation. Example

[0030] Based on Example 1, refer to Figure 1-Figure 5 The utility model provides an arc-shaped arm that is easy to adjust. The rotating assembly 7 includes two fixed cylinders 703, and the two fixed cylinders 703 are fixedly connected to the upper surface of the mounting plate 8. The two fixed cylinders 703 are slidably connected with sliding plates 704. The upper surfaces of the sliding plates 704 are fixedly connected with mounting rods 702. The mounting rods 702 are slidably connected to the fixed cylinders 703. A rolling unit is provided between the two fixed cylinders 703. Through the setting of the rotating assembly 7, the mounting rods 702 are conveniently installed through the fixed cylinders 703.

[0031] Among them, the rolling unit includes a roller 701, which is rotatably connected between the mounting rods 702, and the circumferential outer wall of the roller 701 is tightly fitted with the bottom of the first gear 404. When the first gear 404 is installed, the bottom of the first gear 404 contacts the circumferential outer wall of the roller 701, and the roller 701 is squeezed, so as to improve the rotation effect of the first gear 404.

[0032] Among them, a spring 705 is provided in the fixed cylinder 703, one end of the spring 705 is fixedly connected to the bottom of the sliding plate 704, and the other end of the spring 705 contacts the upper surface of the mounting plate 8. When the roller 701 is squeezed, the mounting rod 702 squeezes the spring 705, thereby improving the contact effect between the roller 701 and the bottom of the first gear 404.

[0033] Among them, a protective component 5 is provided on the upper surface of the mounting plate 8, and the protective component 5 includes a protective shell 501, which is fixedly connected to the upper surface of the mounting plate 8, and the motor 405 is located in the protective shell 501, and the circumferential outer wall of the protective shell 501 is provided with a plurality of penetrating heat dissipation holes 502. Through the setting of the protective component 5, the protective shell 501 protects the motor 405, and the heat dissipation holes 502 facilitate heat dissipation for the motor 405 in the protective shell 501.

[0034] In this embodiment, when the first gear 404 is installed, the bottom of the first gear 404 contacts the circumferential outer wall of the roller 701, and the roller 701 is squeezed, so as to improve the rotation effect of the first gear 404. When the roller 701 is squeezed, the mounting rod 702 squeezes the spring 705, thereby improving the contact effect between the roller 701 and the bottom of the first gear 404. The protective shell 501 protects the motor 405, and the heat dissipation hole 502 facilitates the heat dissipation of the motor 405 in the protective shell 501.

[0035] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0036] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An adjustable arc-shaped arm, comprising a bottom block (1), characterized in that: A plurality of universal wheels (2) are fixedly mounted on the bottom of the bottom block (1), and a driving mechanism (4) is provided on the bottom of the bottom block (1); The driving mechanism (4) comprises a mounting groove (6), wherein the mounting groove (6) is provided at the bottom of the bottom block (1); a fixed disk (401) is rotatably connected to the upper surface of the bottom block (1); a connecting rod (402) is fixedly connected to the bottom of the fixed disk (401), and the connecting rod (402) passes through the bottom block (1); an arc-shaped arm (3) is fixedly installed on the upper surface of the fixed disk (401); and a mounting groove (6) is provided at the bottom of the bottom block (1); A drive assembly is provided in the installation groove (6); The driving assembly comprises a mounting plate (8), wherein the mounting plate (8) is fixedly connected between the inner walls of the mounting groove (6), a motor (405) is fixedly connected to the top of the mounting plate (8), one end of the output shaft of the motor (405) passes through the mounting plate (8) and is fixedly connected to a second gear (406), a first gear (404) is meshed on the circumferential outer wall of the second gear (406), the first gear (404) is fixedly connected to a connecting rod (402), and a limiting unit is provided on the circumferential outer wall of the connecting rod (402); the first gear (404) is a large gear, and the second gear (406) is a small gear.

2. The easily adjustable arc-shaped arm according to claim 1, characterized in that: The limiting unit comprises a limiting plate (403), the limiting plate (403) is fixedly connected to the connecting rod (402), and the upper surface of the limiting plate (403) is tightly fitted with the top inner wall of the mounting groove (6), and the upper surface of the mounting plate (8) is provided with a plurality of rotating components (7).

3. The easily adjustable arc-shaped arm according to claim 2, characterized in that: The rotating assembly (7) comprises two fixed cylinders (703), the two fixed cylinders (703) are fixedly connected to the upper surface of the mounting plate (8), the two fixed cylinders (703) are slidably connected to a sliding plate (704), the upper surfaces of the sliding plates (704) are fixedly connected to a mounting rod (702), the mounting rod (702) is slidably connected to the fixed cylinders (703), and a rolling unit is provided between the two fixed cylinders (703).

4. The easily adjustable arc-shaped arm according to claim 3, characterized in that: The rolling unit comprises a roller (701), the roller (701) being rotatably connected between the mounting rods (702), and the circumferential outer wall of the roller (701) being tightly fitted with the bottom of the first gear (404).

5. The easily adjustable arc-shaped arm according to claim 3, characterized in that: A spring (705) is provided in each of the fixed cylinders (703), one end of the spring (705) is fixedly connected to the bottom of the sliding plate (704), and the other end of the spring (705) is in contact with the upper surface of the mounting plate (8).

6. The easily adjustable arc-shaped arm according to claim 1, characterized in that: A protective component (5) is provided on the upper surface of the mounting plate (8), the protective component (5) comprising a protective shell (501), the protective shell (501) being fixedly connected to the upper surface of the mounting plate (8), the motor (405) being located inside the protective shell (501), and a plurality of penetrating heat dissipation holes (502) being provided on the circumferential outer wall of the protective shell (501).

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