A C-arm winding device

Abstract

The utility model provides a kind of C-arm winding device, comprising: C-arm, winding drum, winding drive wheel, take-up drive wheel, guide rail plate;Winding drum and winding drive wheel are connected, and winding drive wheel is connected with C-arm by interference, one end of cable is connected in winding drum and is wound on winding drum, the other end of cable is connected in one end of C-arm after passing through the wire wheel of lower side;Wire wheel is slidably connected in the sliding slot of guide rail plate, one end of sliding slot is connected take-up drive wheel, take-up drive wheel is engagedly connected with winding drive wheel, the both ends of take-up wire are respectively connected take-up drive wheel and take-up driven wheel, take-up driven wheel and wire wheel are coaxially connected, the rotation of take-up drive wheel drives take-up driven wheel and wire wheel along guide rail plate to approach or away from take-up drive wheel.The rolling motion between C-arm and winding drive wheel is converted into sliding friction motion in the present application, and the sliding motion of wire wheel is cooperated, to meet the cable length required when C-arm is at different positions, and the synchronism is better, and the adaptability is strong.

Description

Technical Field

[0001] This utility model relates to a C-arm winding device, belonging to the field of medical device technology. Background Technology

[0002] Currently, the mainstream C-arm X-ray machine cable reel in the medical device market uses a spherical shell to connect the cable to one end and the detector end to the reel, thus enabling cable winding and unwinding. The cable winding drum and the flange for winding and unwinding rotate synchronously. However, due to the elastic elongation of the cable under tension, the cable position is not synchronized with the C-arm movement, resulting in poor accuracy and synchronization. The reel is under constant tension, which poses a risk of fatigue fracture and wear, leading to low reliability and short lifespan. The reel is also prone to friction with the C-arm's mechanical structure, generating abnormal noise and interfering with the operating room environment. Furthermore, the reel relies on grease, which needs to be replaced regularly, resulting in high maintenance costs. Utility Model Content

[0003] The purpose of this invention is to provide a C-arm cable winding device that improves cable adaptability and enhances motion synchronization accuracy by relying on a transmission device to compensate for the cable length.

[0004] To achieve the above objectives / to solve the above technical problems, the present invention adopts the following technical solution.

[0005] On one hand, this utility model provides a C-arm winding device, including: a C-arm, a winding drum, a winding drive wheel, a take-up and unwinding drive wheel, and a guide rail plate; the winding drum and the winding drive wheel are coaxially connected, and the winding drive wheel is interference-fitted with the C-arm; one end of the cable is connected to the winding drum and wound on the winding drum, and the other end of the cable passes through a guide wheel on the lower side and is connected to one end of the C-arm; the guide wheel is slidably connected in a groove in the guide rail plate, one end of the groove is connected to the take-up and unwinding drive wheel, the take-up and unwinding drive wheel is meshed with the winding drive wheel, and the two ends of the take-up and unwinding cable are respectively connected to the take-up and unwinding drive wheel and the take-up and unwinding driven wheel; the take-up and unwinding driven wheel and the guide wheel are coaxially connected and are respectively arranged on both sides of the guide rail plate; the rotation of the take-up and unwinding drive wheel drives the take-up and unwinding driven wheel and the guide wheel to move closer to or away from the take-up and unwinding drive wheel along the guide rail plate.

[0006] Furthermore, the winding drive wheel is made of rubber, which is wear-resistant, has a long service life, and has a certain degree of elasticity. It can meet the interference contact connection with the C-arm, and the rolling transmission and sliding transmission can be switched at any time according to the magnitude of the force.

[0007] Furthermore, the winding drive wheel is interference-fitted with the C-arm, and the C-arm rotates synchronously with the winding drive wheel through rolling transmission. When the C-arm moves clockwise, the arc length of the C-arm's movement is greater than the cable length provided by the winding drum. At this time, the rolling transmission between the C-arm and the winding drive wheel is converted into relative sliding, so that the winding drum rotates to provide the cable length missing during rolling transmission.

[0008] Furthermore, the spool and the winding drive wheel are coaxially connected, and the shaft is connected to a bearing in the mounting base. The winding drive wheel drives the shaft to rotate, and the shaft drives the spool to rotate. When the C-arm rotates and drives the winding drive wheel to rotate, the spool and the winding drive wheel rotate at the same angular velocity. However, since the diameter of the spool is smaller than that of the winding drive wheel, the linear velocity of the spool is smaller than that of the winding drive wheel.

[0009] Furthermore, the guide plate is disposed on the lower side of the winding drive wheel.

[0010] Furthermore, the transmission ratio of the C-arm, the winding drive wheel, and the take-up and unwind drive wheel is 1:4:8.

[0011] Furthermore, the take-up and release line is made of steel wire rope. When the take-up and release drive wheel rotates and winds the steel wire rope, it pulls the steel wire rope back. The steel wire rope drives the take-up and release driven wheel to move obliquely upward along the slide groove of the guide plate. When the take-up and release drive wheel rotates and releases the steel wire rope, it releases the steel wire rope. The steel wire rope drives the take-up and release driven wheel to move obliquely downward along the slide groove of the guide plate.

[0012] Furthermore, the guide rail plate is inclined at an angle of 30° to facilitate the guide wheel (6) to slide up and down along the groove.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This invention transforms the rolling motion between the C-arm and the winding drive wheel into sliding friction motion, which, in conjunction with the sliding motion of the guide wheel, satisfies the cable length required at different positions of the C-arm. It has good synchronization and strong adaptability.

[0014] Compared with existing wire rope solutions, this invention is noiseless, requires no lubricant, has low maintenance costs, long roller life, and high reliability and stability, meeting the needs of medical equipment. Attached Figure Description

[0015] Figure 1 This is a front structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear structure of this utility model; Figure 3 This is a schematic diagram of the tightening mechanism of this utility model; The components include: C-arm 1, winding drum 2, winding drive wheel 3, take-up and unwind drive wheel 4, guide rail plate 5, guide wheel 6, cable 7, take-up and unwind driven wheel 8, and take-up and unwind cable 9. Detailed Implementation

[0016] It should be noted that: The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features therein are detailed descriptions of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features therein can be combined with each other.

[0017] The term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship. Example

[0018] like Figures 1-2 The embodiment shown provides a C-arm winding device, including: a C-arm 1, a winding drum 2, a winding drive wheel 3, a take-up and unwind drive wheel 4, and a guide plate 5; the winding drum 2 and the winding drive wheel 3 are coaxially connected, and the winding drive wheel 3 is interference-fitted with the C-arm 1; one end of the cable 7 is connected to the winding drum 2 and wound on the winding drum 2, and the other end of the cable 7 passes through the lower guide wheel 6 and is connected to one end of the C-arm 1; the guide wheel 6 is slidably connected in a groove in the guide plate 5, one end of the groove is connected to the take-up and unwind drive wheel 4, the take-up and unwind drive wheel 4 is meshed with the winding drive wheel 3, and the two ends of the take-up and unwind are respectively connected to the take-up and unwind drive wheel 4 and the take-up and unwind driven wheel 8; the take-up and unwind driven wheel 8 and the guide wheel 6 are coaxially connected and are respectively arranged on both sides of the guide plate 5; the rotation of the take-up and unwind drive wheel 4 drives the take-up and unwind driven wheel 8 and the guide wheel 6 to move closer to or away from the take-up and unwind drive wheel 4 along the guide plate 5.

[0019] The winding drive wheel 3 is made of rubber, which is wear-resistant, has a long service life, and has a certain degree of elasticity. It can meet the interference contact connection with the C-arm, and the rolling transmission and sliding transmission can be switched at any time according to the magnitude of the force.

[0020] The winding drive wheel 3 is interference-fitted with the C-arm 1. The C-arm 1 is driven to rotate synchronously with the winding drive wheel 3 through rolling transmission. When the C-arm 1 moves clockwise, the arc length of the C-arm 1 is greater than the length of the cable 7 provided by the winding drum 2. At this time, the rolling transmission between the C-arm 1 and the winding drive wheel 3 is converted into relative sliding, so that the winding drum 2 rotates to provide the cable 7 length missing during the rolling transmission.

[0021] The cable reel 2 and the cable drive wheel 3 are coaxially connected. The shaft is connected to a bearing in the mounting base. The cable drive wheel 3 drives the shaft to rotate, and the shaft drives the cable reel 2 to rotate. When the C-arm 1 rotates and drives the cable drive wheel 3 to rotate, the cable reel 2 and the cable drive wheel 3 rotate at the same angular velocity. However, since the diameter of the cable reel 2 is smaller than that of the cable drive wheel 3, the linear velocity of the cable reel 2 is smaller than that of the cable drive wheel 3.

[0022] The guide plate 5 is located on the lower side of the winding drive wheel 3. The guide plate 5 is inclined at an angle of 30° to facilitate the guide wheel 6 to slide up and down along the groove.

[0023] The transmission ratio of the C-arm 1, the winding drive wheel 3, and the take-up and release drive wheel 4 is 1:4:8. When the C-arm rotates counterclockwise, the C-arm rotates 10 degrees, causing the winding drive wheel to rotate 40 degrees clockwise. The winding drive wheel then causes the take-up and release drive wheel to rotate 80 degrees counterclockwise. The counterclockwise rotation of the take-up and release drive wheel winds the wire rope (take-up and release line). The wire rope (take-up and release line) moves the take-up and release driven wheel upward along the guide plate. Because the radius of the winding drum is smaller than that of the winding drive wheel, the cable is not completely wound by the winding drum when the C-arm rotates. Some of the cable is in a slack state in the C-arm. The take-up and release driven wheel and the guide wheel are pulled upward along the guide plate by the wire rope, causing the slack cable in the C-arm to move outward, changing it from a slack state to a taut state.

[0024] The take-up and release line is made of steel wire rope. When the take-up and release drive wheel 4 rotates and winds the steel wire rope, it pulls the steel wire rope back. The steel wire rope drives the take-up and release driven wheel 8 to move obliquely upward along the slide groove of the guide rail plate 5. When the take-up and release drive wheel 4 rotates and releases the steel wire rope, it releases the steel wire rope. The steel wire rope drives the take-up and release driven wheel 8 to move obliquely downward along the slide groove of the guide rail plate 5.

[0025] The working process of this embodiment is as follows: When the C-arm 1 rotates clockwise, it drives the cable drive wheel 3 to rotate counterclockwise, thereby driving the reel 2 to rotate and convey the cable 7. At the same time, the rotation of the C-arm 1 drives the movement of the cable 7. However, since the radius of the reel 2 is smaller than that of the reel drive wheel 3, the length of the cable output by the reel 2 does not meet the length required for the movement of the C-arm 1. At this time, the rolling motion of the C-arm 1 and the reel drive wheel 3 is converted into the sliding friction pair motion of the reel drive wheel 3, thereby compensating for the cable 7 length required by the C-arm. The clockwise rotation of the C-arm 1 synchronously pulls the guide wheel 6 to move obliquely downward along the groove in the guide rail plate 5. When C-arm 1 rotates counterclockwise, it drives the cable drive wheel 3 to rotate clockwise in sync, thereby driving the reel 2 to rotate and retract the cable 7. However, since the radius of the reel 2 is smaller than that of the reel drive wheel 3, the length of the cable 7 retracted by the reel 2 is less than the length of the cable 7 sent back by the counterclockwise movement of C-arm 1. At this time, the cable 7 is in a slack state. Since the cable drive wheel 3 rotates clockwise, it also drives the take-up and release drive wheel 4 to rotate counterclockwise in sync. The take-up and release drive wheel 4 rotates counterclockwise to take up and release the cable 9 (steel wire rope), thereby pulling the take-up and release driven wheel 8 and the guide wheel 6 to move upward along the guide rail plate 5. The guide wheel 6 drives the slack cable 7 to move upward along the guide rail, thereby putting the cable 7 in a taut state.

[0026] In summary, regardless of whether the C-arm rotates counterclockwise or clockwise, this embodiment can meet the required cable length and keep the cable taut, with good synchronization, strong adaptability, and the cable length required when the C-arm rotates can be adjusted at any time.

[0027] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present utility model.

Claims

1. A C-arm winding device, characterized in that, include: The cable consists of a C-arm (1), a spool (2), a winding drive wheel (3), a take-up and unwind drive wheel (4), and a guide plate (5). The spool (2) and the winding drive wheel (3) are coaxially connected, and the winding drive wheel (3) is interference-fitted with the C-arm (1). One end of the cable (7) is connected to the spool (2) and wound around it. The other end of the cable (7) passes through the lower guide wheel (6) and is connected to one end of the C-arm (1). The guide wheel (6) is slidably connected to the guide plate (5). In the chute, one end of the chute is connected to the take-up and release drive wheel (4), the take-up and release drive wheel (4) is meshed with the winding drive wheel (3), and the two ends of the take-up and release line (9) are respectively connected to the take-up and release drive wheel (4) and the take-up and release driven wheel (8). The take-up and release driven wheel (8) and the guide wheel (6) are coaxially connected and are respectively arranged on both sides of the guide plate (5). The rotation of the take-up and release drive wheel (4) drives the take-up and release driven wheel (8) and the guide wheel (6) to move closer to or away from the take-up and release drive wheel (4) along the guide plate (5).

2. The C-arm winding device according to claim 1, characterized in that, The winding drive wheel (3) is made of rubber.

3. The C-arm winding device according to claim 1, characterized in that, The winding drive wheel (3) is interference-fitted with the C-arm (1).

4. The C-arm winding device according to claim 1, characterized in that, The spool (2) and the winding drive wheel (3) are coaxially connected, and the diameter of the spool (2) is smaller than that of the winding drive wheel (3).

5. The C-arm winding device according to claim 1, characterized in that, The guide plate (5) is located on the underside of the winding drive wheel (3).

6. The C-arm winding device according to claim 1, characterized in that, The transmission ratio of the C-arm (1), the winding drive wheel (3), and the take-up and release drive wheel (4) is 1:4:

8.

7. The C-arm winding device according to claim 1, characterized in that, The take-up and release line (9) is made of steel wire rope.

8. The C-arm winding device according to claim 1, characterized in that, The guide rail plate (5) is inclined at an angle of 30°.

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