阅读说明：本技术 脚轮及内窥镜台车 (Caster and endoscope trolley ) 是由 孙宇 王聪 邓安鹏 于 2019-09-30 设计创作，主要内容包括：本发明提供了一种脚轮及内窥镜台车,属于医疗器械技术领域。它解决了现有的台车转向时具有调整位移、不利于在狭小空间内对台车的位置进行调整的问题。本脚轮,包括支撑座,支撑座上具有竖向设置的安装孔,安装孔内设有可滚动的滚球,支撑座的下部设有用于防止滚球从安装孔的下端脱出的限位挡沿,支撑座上设有作用在滚球上的用于防止滚球从安装孔的上端脱出的连接座,在连接座的作用下所述滚球的下部伸出安装孔的下端；内窥镜台车包括台车架和上述的脚轮。本发明中的脚轮可即时转向,使台车在转向时不产生调整位移；锁紧和解锁只要一个操作动作即可完成；减震效果好。(The invention provides a caster and an endoscope trolley, and belongs to the technical field of medical instruments. It has solved the current platform truck and has adjusted the displacement, be unfavorable for adjusting the problem of the position of platform truck in narrow and small space when turning to. The caster comprises a supporting seat, wherein the supporting seat is provided with a vertically arranged mounting hole, a rolling ball is arranged in the mounting hole, the lower part of the supporting seat is provided with a limiting blocking edge for preventing the rolling ball from falling off from the lower end of the mounting hole, the supporting seat is provided with a connecting seat acting on the rolling ball and used for preventing the rolling ball from falling off from the upper end of the mounting hole, and the lower part of the rolling ball extends out of the lower end of the mounting hole under the action of the connecting seat; the endoscope trolley comprises a trolley frame and the caster. The caster wheels can steer instantly, so that the trolley does not generate adjustment displacement when steering; the locking and unlocking can be completed only by one operation action; the shock attenuation is effectual.)

1. The utility model provides a truckle, a serial communication port, includes supporting seat (1), supporting seat (1) on have mounting hole (2) of vertical setting, mounting hole (2) in be equipped with can rolling spin (3), the lower part of supporting seat (1) is equipped with the spacing fender edge (4) that are used for preventing spin (3) to deviate from the lower extreme of mounting hole (2), supporting seat (1) on be equipped with and be used for on spin (3) preventing spin (3) from following connecting seat (5) of deviating from the upper end of mounting hole (2) under the effect of connecting seat (5) the lower part of spin (3) stretches out the lower extreme of mounting hole (2).

2. The caster wheel according to claim 1, wherein the limit stop edge (4) is annular and is arranged coaxially with the mounting hole (2), the diameter of the hole surrounded by the limit stop edge (4) is smaller than that of the rolling ball (3), and the center of the rolling ball (3) is higher than the limit stop edge (4).

3. The caster wheel according to claim 1, wherein the supporting seat (1) is provided with a plurality of vertically arranged connecting holes (6), the connecting seats (5) are fixed with connecting columns (7) which are equal in number to the connecting holes (6) and are arranged in a one-to-one correspondence manner, the connecting columns (7) are arranged in the connecting holes (6) which are arranged in a corresponding manner in a penetrating manner, and the lower ends of the connecting columns (7) are provided with limiting flanges (8) of which the outer diameters are larger than the hole diameters of the connecting holes (6).

4. The caster wheel according to claim 3, characterized in that a driving component for driving the connecting seat (5) to move upwards is arranged between the connecting seat (5) and the supporting seat (1), and the rolling ball (3) is in rolling contact with the limit stop edge (4) only when the connecting seat (5) moves upwards to the maximum position under the action of the driving component.

5. The caster wheel according to claim 4, wherein the driving assembly comprises a first electromagnetic coil (9) arranged on the supporting seat (1) and a second electromagnetic coil (10) arranged on the connecting seat (5) and opposite to the first electromagnetic coil (9), and when the first electromagnetic coil (9) and the second electromagnetic coil (10) are electrified, a magnetic field generated by the first electromagnetic coil (9) and a magnetic field generated by the second electromagnetic coil (10) repel each other.

6. The caster wheel according to claim 1, wherein the lower part of the connecting seat (5) is provided with a hemispherical concave hole (11) which is coaxial with the mounting hole (2), the upper part of the rolling ball (3) extends into the concave hole (11), and a plurality of round balls (12) are arranged between the rolling ball (3) and the inner wall of the concave hole (11).

7. The caster according to claim 6, characterized in that said support (1) has a flange (13), said flange (13) having a cycloid profile.

8. an endoscope trolley, characterized in that it comprises a trolley frame (14), the bottom of the trolley frame (14) being provided with a caster according to any one of claims 1-7.

9. An endoscope trolley according to claim 8, characterized in that a damper (15) is provided between the caster and the trolley frame (14).

10. An endoscope trolley according to claim 8, characterized in that the trolley frame (14) is provided with a power supply (16).

Technical Field

The invention belongs to the technical field of medical instruments, and relates to a caster and an endoscope trolley.

Background

The trolley is used for bearing medical equipment and is widely applied to the medical field. The Chinese patent discloses a novel trolley (with an authorization notice number of CN 203220441U), which comprises a trolley frame, wherein the bottom of the trolley frame is provided with a caster wheel, and the caster wheel is provided with a brake. It has the following problems: 1. the rotating shaft connected with the trolley frame by the trundles does not pass through the circle centers of the trundles, so that the trolley is pushed forwards and backwards firstly, and then the trolley is pushed leftwards and rightwards, so that the trolley has adjustment displacement, and the adjustment of the position of the trolley in a narrow space is not facilitated; 2. the trolley can be fixed only by locking the brake brakes on the trundles one by one, the locking action is complex, and the brake brakes are not easy to step in a narrow space; 3. when the ground with poor flatness moves, the trolley can generate large vibration, which is unfavorable for equipment on the trolley.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a caster capable of realizing instant steering, and also provides an endoscope trolley without adjusting displacement during steering.

The purpose of the invention can be realized by the following technical scheme:

The truckle, including the supporting seat, the supporting seat on have the mounting hole of vertical setting, the mounting hole in be equipped with can rolling spin, the lower part of supporting seat is equipped with and is used for preventing the spacing fender edge that the lower extreme of spin follow mounting hole deviate from, the supporting seat on be equipped with and be used for on the spin preventing the connecting seat that the spin deviates from the upper end of mounting hole the effect of connecting seat is down the lower extreme of mounting hole is stretched out to the lower part of spin.

The aperture of mounting hole slightly is greater than the diameter of spin, and the thickness of supporting seat is about 1/3 of spin diameter, and spacing fender edge and supporting seat integrated into one piece have restricted spin motion on vertical under the effect of spacing fender edge and connecting seat. The rolling ball can drive the support seat and the upper component thereof to move, and the instant steering can be realized.

In the caster, the limit stop edge is annular and is coaxial with the mounting hole, the diameter of the hole surrounded by the limit stop edge is smaller than that of the rolling ball, and the center of the rolling ball is higher than the limit stop edge.

In foretell truckle, the supporting seat on have a plurality of vertical connecting holes that set up, the connecting seat on be fixed with the spliced pole that equals and the one-to-one setting with connecting hole quantity, the spliced pole wear to establish in the connecting hole that sets up with it, the lower extreme of spliced pole is equipped with the spacing flange that the external diameter is greater than the connecting hole aperture. During the equipment, earlier with the spin from top to bottom put into the mounting hole, cover the connecting seat afterwards, at last through the spliced pole of taking spacing flange with connecting seat and supporting seat be connected to together, made things convenient for the installation of spin.

In foretell truckle, the connecting seat on have a plurality of vertical connecting holes that set up, the supporting seat on be fixed with the spliced pole that equals and the one-to-one setting with connecting hole quantity, the spliced pole wear to establish in the connecting hole that sets up with it, the upper end of spliced pole is equipped with the spacing flange that the external diameter is greater than the connecting hole aperture.

In the caster, a driving assembly for driving the connecting seat to move upwards is arranged between the connecting seat and the supporting seat, and when the connecting seat moves upwards to the maximum position under the action of the driving assembly, the rolling ball is in rolling contact with the limiting blocking edge. When drive assembly did not drive the connecting seat upward movement, the connecting seat supported on the spin under the action of gravity, and the spin supported on spacing fender edge, and the frictional force between spin and the spacing fender edge is big, and the spin does not roll, has slight clearance between the lower terminal surface of spacing flange and connecting hole this moment, and the size in this clearance is the biggest stroke that the connecting seat can the upward movement. When the driving assembly drives the connecting seat to move upwards to the maximum position, the limiting flange is abutted against the lower end face of the connecting hole, and the rolling ball can roll freely in the mounting hole at the moment.

In the caster, the driving assembly comprises a first electromagnetic coil arranged on the supporting seat and a second electromagnetic coil arranged on the connecting seat and opposite to the first electromagnetic coil, and when the first electromagnetic coil and the second electromagnetic coil are electrified, a magnetic field generated by the first electromagnetic coil and a magnetic field generated by the second electromagnetic coil repel each other. When the first electromagnetic coil and the second electromagnetic coil are electrified, the supporting seat and the connecting seat move in opposite directions under the repulsion action of the magnetic field generated by the first electromagnetic coil and the magnetic field generated by the second electromagnetic coil, the distance between the connecting seat and the limiting blocking edge is increased, the friction force between the rolling ball and the limiting blocking edge is reduced, and the rolling ball rolls freely.

In the caster, the first electromagnetic coil is annular and is arranged around the mounting hole, and the second electromagnetic coil is annular and is arranged around the rolling ball.

In the truckle, the lower part of connecting seat is equipped with and is hemispherical and the coaxial shrinkage pool that sets up of mounting hole, the upper portion of spin stretches into in the shrinkage pool, the inner wall of spin and shrinkage pool between be equipped with a plurality of balls. When the driving assembly does not drive the connecting seat to move upwards, the circle of the spherical surface of the concave hole is concentric with the circle center of the rolling ball, at the moment, the distance from each point on the inner wall of the concave hole to the spherical center of the rolling ball is equal, and the distance from the rolling ball to the inner wall of the concave hole is equal to the diameter of the rolling ball. When the drive assembly drives the connecting seat to move upwards, the concave hole is driven to move upwards, the distance from the rolling ball to the inner wall of the concave hole is increased, and each rolling ball can roll freely.

In the caster, the support base is provided with a flange extending into the concave hole, and the flange has a cycloid contour. When the rolling ball rolls, the rolling ball does rolling motion and small displacement motion, and the cycloid contour can effectively provide small displacement, so that the rolling ball is prevented from being stuck in the motion process.

The endoscope trolley comprises a trolley frame, and the trundles are arranged at the bottom of the trolley frame. Four trundles are generally arranged on the trolley frame, and the four trundles all adopt the structure.

In the above endoscope cart, a damper is provided between the caster and the cart frame. When the trolley moves on an uneven road surface, the damper attenuates the vibration, and the shock absorption effect is achieved.

In the endoscope trolley, the trolley frame is provided with a power supply. The power supply is arranged to provide power for the drive assembly and simultaneously for the equipment on the trolley and the surgical instruments during the surgical procedure. The first electromagnetic coil and the second electromagnetic coil in each caster wheel arranged at the bottom of the trolley frame are both connected with the power supply.

Compared with the prior art, the invention has the following advantages:

The trundles can be steered in real time, so that the trolley does not generate adjustment displacement when being steered, and the steering device is suitable for steering the trolley in a narrow space; the trundles are locked through electric control, so that the locking action is simple, and the simultaneous locking of the trundles is easy to realize; the damper is arranged between the trundle and the trolley frame, so that vibration is attenuated, and the damping effect is good.

Drawings

Fig. 1 is a sectional view of a caster provided by the present invention.

FIG. 2 is a cross-sectional view of a flange provided by the present invention.

Fig. 3 is a schematic structural view of the trolley provided by the invention.

In the figure, 1, a support seat; 2. mounting holes; 3. rolling a ball; 4. a limiting blocking edge; 5. a connecting seat; 6. connecting holes; 7. connecting columns; 8. a limiting flange; 9. a first electromagnetic coil; 10. a second electromagnetic coil; 11. concave holes; 12. a ball; 13. a flange; 14. a bogie frame; 15. a damper; 16. a power source.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.