KR20140089254A - Mobile x-ray photographing apparatus easy to adjusting arm position - Google Patents

Abstract

The present invention relates to a mobile X-ray photographing apparatus which easily adjusts the position of an arm. The mobile X-ray photographing apparatus which easily adjusts the position of an arm according to one embodiment of the present invention includes a base; a vertical post which is vertically formed on the base; a support frame which is connected to the upper part of the vertical post; a support arm which is connected to the upper part of the support frame; and a damping unit which countervails the weight moment of the support arm and an X-ray radiation unit.

Description

[0001] MOBILE X-RAY PHOTOGRAPHING APPARATUS EASY TO ADJUSTING ARM POSITION [0002]

More particularly, the present invention relates to a movable X-ray photographing apparatus capable of easily adjusting an arm position, and more particularly, to a movable X-ray photographing apparatus capable of easily adjusting an arm position by using a guide bar, a connecting rod and a gas shock absorber as a damping means for canceling a load moment of an X- The present invention relates to a mobile X-ray photographing apparatus which is easy to adjust an arm position so that the damping means is not exposed to the outside, thereby facilitating the position adjustment while having a simple appearance.

Generally, the X-ray imaging apparatus uses X-rays that vary in absorbance depending on the material to detect the difference in the absorption rate of various organs within the human body as X-ray images (images of shadows projected on the film by various structures in the human body) Show.

Such an X-ray imaging apparatus is used for nondestructive examinations that reveal defects inside the structure as well as diagnoses of the large intestine, stomach, and pulmonary tuberculosis.

In order to obtain an accurate image of the affected part using the X-ray imaging apparatus, the affected part must be focused on the injection point of the injection device. In case of an intractable intensive care unit, it is difficult to obtain accurate images of the affected part There was a dot.

In order to solve such a problem, a mobile X-ray photographing apparatus (a mobile X-ray radiographing apparatus) has been found, and a mobile X-ray radiographing apparatus according to the related art has an X-ray irradiating unit And a base 12 'equipped with various circuit devices and operation panels for controlling the X-ray output of the X-ray irradiating unit 10'.

The base 12 'is provided with a movement wheel 121' and is easily movable. The X-ray irradiating unit 10 'is horizontally and vertically moved with respect to the body 12' by the position adjusting mechanism 20 ' As shown in Fig.

The position adjusting mechanism 20 'includes a vertical post 22' provided on one side of the main body 12 'so as to be rotatable about a shaft in the horizontal direction, and a vertical post 22' And a connected support arm 24 '.

Between the support arm 24 'and the vertical post 22', a gas shock absorber 26 'is provided as damping means for supporting the load moment of the X-ray irradiating unit 10'.

According to the related art, since the X-ray irradiating unit 10 'performs the circular motion horizontally with respect to the vertical post 22' in the rotatable structure of the vertical post 22 ', the X-ray irradiating unit 10' The vertical position of the X-ray irradiating unit 10 ', which is connected to the vertical post 22' so as to be rotatable up and down, can be adjusted, and the X-ray irradiating unit 10 ' ), It is possible to precisely align the focus of the X-ray irradiating unit 10 'to a desired site by combining the movement in each of these directions.

Therefore, according to this conventional technique, there is an image diagnosis for the patient without moving the patient who is inconvenient.

On the other hand, in the prior art, the load moment of the X-ray irradiating unit 10 'and the supporting arm 24' is canceled by the gas shock absorber 26 'constituting the damping means, So that the burden of the user's operation due to the vertical position adjustment is reduced.

First, the gas shock absorber 26 'has a cylinder body 261' whose lower end is linked to the vertical post 22 ', and a cylinder body 261' which is detachably mounted on the cylinder body 261 ' And a piston rod 262 'linked to the support arm 24'. Compressed gas is filled in the cylinder body 261 'to apply a repulsive force to the piston rod 262'.

Therefore, the load of the X-ray irradiating unit 10 'and the support arm 24' is canceled by the gas pressure in the cylinder 261 'applied to the piston rod 262' Can be easily adjusted in the vertical position.

However, in the mobile radiographic apparatus according to the related art, there is a problem that the gas shock absorber 26 'as damping means is exposed to the outside and the gas shock absorber 26' occupies a certain space there was.

In addition, in another prior art Patent No. 1047973 (registered on July 4, 2011), "X-ray irradiating unit position adjustment mechanism of mobile X-ray imaging apparatus" has been proposed.

However, in another conventional technique, the damping means includes a coil spring fitted to the spring shaft and compressed by a linear reciprocating motion of the spring shaft. However, in order to make use of the elastic repulsive force of the coil spring, The structure is complicated as compared with the gas shock absorber sold as a finished product, and the coil spring is fitted to the spring shaft, that is, the structural limit that can only be accomplished by one, and the weight difference of the X- There is a problem in that it is difficult to control the elastic repulsion force according to the characteristics of the coil spring.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a damping means for damping the load moment of an X-ray irradiating unit and a support arm by a guide bar, a connecting rod, a gas shock absorber The present invention provides a mobile X-ray photographing apparatus in which the damping means is not exposed to the outside so that the position of the arm can be easily adjusted while having a simple appearance while facilitating the position adjustment .

It is another object of the present invention to provide a gas shock absorber comprising a plurality of gas shock absorbers detachably mounted in respective vertical posts to adjust the repulsive force according to characteristics of the apparatus, It is possible to fabricate a small size and it is easy to manufacture.

According to an aspect of the present invention, there is provided a portable X-ray imaging apparatus including: a movable base; A vertical post erected perpendicular to the base; A support frame rotatably connected to an upper end of the vertical post in a lateral direction; A support arm having one end rotatably connected to the upper end of the support frame in a vertical direction and the other end supported by an X-ray irradiating unit; Damping means for canceling the load moment of the X-ray irradiating unit and the supporting arm; Wherein the support cam is provided with a disk cam rotatably supported on a horizontal axis at an upper end of the support frame, one end of the support arm is fixed to the disk cam so that the support arm is rotated in the vertical direction, A guide bar which is vertically movably supported in the vertical post, one end of the guide cam is hinged to one side of the disc cam so that the rotational motion of the disc cam is converted into a vertical linear motion of the guide bar, A connecting rod hinged to the upper end of the guide bar; a vertical rod extending vertically in the vertical post, one end being fixed to the vertical post and the other end being connected to the guide bar, And the X-ray irradiating unit and the support arm And a first gas shock absorber for canceling the load moment of the arm.

According to another aspect of the present invention, there is provided a portable X-ray photographing apparatus, wherein the arm position is easily adjustable, wherein the damping means is hinged to one side of the disc cam and hinged to the inside of the support frame, And a second gas shock absorber for canceling the load moment of the X-ray irradiating unit and the support arm by a repulsive force of the compressed gas filled in the inside of the second gas shock absorber, And the support frame and the support frame are arranged such that the length of the extension and contraction is minimized at a set inclination angle between the maximum inclination angle and the minimum inclination angle formed by the support arm and the support frame.

The movable x-ray photographing apparatus according to the present invention is characterized in that the damping means comprises a plurality of first gas shock absorbers arranged around the guide bar, 1 gas shock absorber are detachably mounted inside the vertical posts, respectively.

According to another aspect of the present invention, there is provided a portable X-ray photographing apparatus which is capable of easily adjusting an arm position, wherein the vertical post includes a cylinder fixing groove, through which the guide bar is passed at the center, and one end of the first gas shock absorber is detachably bolt- Wherein the guide bar is provided at its lower end with rod fixing grooves detachably connectable to the other end of the gas shock absorber at regular intervals along the circumferential direction at predetermined intervals along the circumferential direction And an annular rod mounting portion formed thereon.

In addition, the portable X-ray photographing apparatus according to the present invention, which can easily adjust the arm position, includes an arm fixing means for restricting rotation of the disc cam by a user's operation; Wherein the support arm is provided with a handle capable of being held by hand, and the disc cam is made of a material adhered to a magnet, and the arm fixing means includes an arm fixing portion provided near the handle of the support arm, And a magnetic brake which is disposed close to the disk cam and is magnetized when the current is supplied by the operation of the arm fixing switch of the user to catch the disk cam.

According to the present invention, the movable X-ray photographing apparatus according to the present invention has the advantage that the damping means is not exposed to the outside and has a simple appearance while facilitating the position adjustment. The gas shock absorber can be removably mounted so that the repulsive force of the damping means can be adjusted according to the characteristics of the device and the gas shock absorber can be manufactured in a small size.

1 is a perspective view of a mobile X-
FIG. 2 is a perspective view of a mobile X-ray photographing apparatus which can easily adjust an arm position according to an embodiment of the present invention.
FIG. 3 is a perspective view of a main part of a portable X-ray photographing apparatus which can easily adjust an arm position according to an embodiment of the present invention.
FIGS. 4 to 6 are side sectional views showing an operating state of a mobile X-ray photographing apparatus which can easily adjust an arm position according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a mobile X-ray photographing apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a perspective view of a portable X-ray photographing apparatus which can easily adjust an arm position according to an embodiment of the present invention, FIG. 3 is a perspective view of a main part of a portable X-ray photographing apparatus which can easily adjust an arm position according to an embodiment of the present invention And FIGS. 4 to 6 are side cross-sectional views illustrating an operation state of the portable X-ray imaging apparatus according to an embodiment of the present invention.

Referring to the drawings, a mobile X-ray imaging apparatus having an easy position adjustment according to an embodiment of the present invention includes a base 10, a vertical post 20, a support frame 30, a disc cam 40, A supporting arm 50, an X-ray irradiating unit 60, a damping means 70, and an arm fixing means 80. [

The base 10 is provided with various circuit devices and operation panels for controlling the X-ray output of the X-ray irradiating unit 60, and the other configuration of the X-ray imaging apparatus according to the present invention is accommodated or supported. So that the X-ray photographing apparatus according to the present invention can be configured as a movable type, and the vertical post 20 is vertically erected on the upper part.

The vertical post 20 is vertically erected on the base 10. In one embodiment of the present invention, the damping means 70 is accommodated in the vertical post 20, and the support frame 30 is supported in the left- And is rotatably connected.

3, a guide bar 71 is passed through the vertical post 20 so that the first gas shock absorber 73 of the damping means 70 can be detachably mounted A cylinder fixing groove 211 to which the rear end of the first cylinder body 731 which is one end of the first gas shock absorber 73 can be detachably coupled with the bolt B1 is formed in an annular shape A cylinder mounting portion 21 is provided.

The cylinder mounting portion 21 corresponds to the rod mounting portion 711 provided at the lower end of the guide bar 71 to be described later.

The support frame 30 is rotatably connected to the upper end of the vertical post 20 in the left and right direction by the left and right rotation connecting portion 31. The support frame 30 is rotatably supported by the left and right rotation fixing handle 311 Is fixed.

In addition, in the embodiment of the present invention, the support arm 50 is rotatably connected to the support frame 30 via the disc cam 40 in a vertical direction.

6, when the support arm 50 is rotated in the downward direction, the stopper socket 32 is provided on the front surface of the support frame 30, Ray irradiating unit 60 is prevented from colliding with the vertical post 20 or the base 10 at the lowest position by being inserted into and fixed to the stopper socket 32 so that the X-ray irradiating unit 60 ) Is not shaken.

The disk cam 40 is rotatably supported on the upper end of the support frame 30 with a horizontal axis C so that one end of the support arm 50 is fixed to the disk cam 40, A support arm (50) is rotatably connected to the upper end of the support frame (30) in a vertical direction.

It is preferable that a frictional means such as a disc spring (not shown) is provided between the disc cam 40 and the support frame 30 so that the disc cam 40 can rotate only when receiving an external force equal to or greater than a predetermined level Do.

A connecting rod 72 as the damping means 70 is hingedly connected to a side of the disc cam 40, that is, a position spaced from the horizontal axis C which is the rotational center of the disc cam 40, The disc cam 40 is made of a material adhering to a magnet and is configured to be held by the magnetic brake 82 as the arm fixing means 80 to be restricted from rotation.

One end of the support arm 50 is fixed to the disc cam 40 and connected to the upper end of the support frame 30 in a vertically rotatable manner integrally with the disc 40, The unit 60 is supported.

That is, it is possible to adjust the vertical position of the X-ray irradiating unit 60 through the rotation of the support arm 50 in the vertical direction.

The support arm 50 is provided with a handle 51 for the user to grasp by hand so that the user can easily adjust the position of the support arm 50, An arm fixing switch 81 as the arm fixing means 80 is disposed in the vicinity of the handle 51 so that the user can grasp the handle 51 by hand to adjust the position of the supporting arm 50, The arm fixing switch 81 can be operated.

The support arm 50 is provided with a stopper protrusion 52 so that when the support arm 50 is rotated downward, the stopper protrusion 52 is inserted into the stopper socket 32 So that the X-ray irradiating unit 60 does not collide with the vertical post 20 or the base 10 at the lowest position and the X-ray irradiating unit 60 is not shaken.

The X-ray irradiating unit 60 is configured to emit an X-ray to perform photographing operation. The X-ray irradiating unit 60 is supported on the other end of the support arm 50 so that its position is changed by adjusting the position of the support arm 50, And the tilt bracket 61 is connected to the other end of the second arm 50 to adjust the angle of the front and rear.

The damping means 70 is constituted to cancel the load moment of the X-ray irradiating unit 60 and the support arm 50 and has a guide bar 71, a connecting rod 72, a first gas shock absorber 73 , And a second gas shock absorber (74).

The connecting rod 72 is hingedly connected to the upper end of the guide bar 71 and the first gas shock absorber 73 is connected to the lower end of the connecting rod 72, An annular rod mounting portion 711 having a rod fixing groove 711a to which the tip portion of the first piston rod 732, which is the other end of the first piston rod 732, can be detachably coupled with the bolt B2 is formed at a predetermined interval along the circumferential direction.

The connecting rod 72 has a structure in which the rotational motion of the disc cam 40 according to the vertical adjustment of the support arm 50 by the user is converted into a linear motion of the guide bar 71 One end of which is hinged to one side of the disc cam 40 and the other end is hingedly connected to the upper end of the guide bar 71.

The first gas shock absorber 73 is extended and contracted and the X-ray irradiating unit 60 and the X-ray irradiating unit 70, which are transmitted to the guide bar 71 by the repulsive force of the compressed gas filled in the first cylinder body 731, In the present embodiment, the first cylinder body 731, which is filled with the compressed gas, is disposed in the vertical post 20 in such a manner as to be offset from the vertical post 20 in the vertical post 20 in a configuration for canceling the load moment of the arm 50 The first piston rod 732 which is advanced and retreated is connected to the guide bar 71 so that the first piston rod 732 is moved up and down integrally with the guide bar 71.

The plurality of first gas shock absorbers 73 may be arranged around the guide bars 71 so that the first gas shock absorbers 73 can be adjusted Are detachably mounted inside the vertical posts 20, respectively.

That is, the first gas shock absorber 73 is fixed to the cylinder mounting portion 21 of the vertical post 20 and the rod mounting portion 711 of the guide bar 71, B2). ≪ / RTI >

Since the plurality of first gas shock absorbers 73 are detachably mounted, the repulsive force of the damping means 70 can be easily adjusted by adjusting the number of the mounting portions according to the characteristics of the device, It is possible to manufacture the first gas shock absorber with a small size.

The tip of the second piston rod 742 which is one end of the second gas shock absorber 74 is hinged to one side of the disk cam 40 and the rear end of the second cylinder body 741 of the other end is connected to the support frame 30, and the load moment of the X-ray irradiating unit 60 and the support arm 50 is increased by the repulsive force of the compressed gas filled in the X- 4 to 6, the second gas shock absorber 74 is disposed at a position where the maximum inclination angle of the support arm 50 and the support frame 30 min and the minimum inclination angle [theta] min is minimum.

That is, between the maximum inclination angle? Max and the set inclination angle? Set formed by the support arm 50 and the support frame 30, the length of the first gas shock absorber 73 is relatively long, The first gas shock absorber 73 is operated through the second gas shock absorber 74 operating in the same direction as the elongating and contracting direction of the length of the first shock absorber 73 because the repulsive force of the compressed gas filled in the first gas shock absorber 73 is reduced. The length of the first gas shock absorber 73 is relatively short between the set inclination angle? Set and the minimum inclination angle? Min formed by the support arm 50 and the support frame 30, The second gas shock absorber 74 operates in a direction opposite to the expansion and contraction direction of the length of the first gas shock absorber 74 because the repulsive force of the compressed gas filled therein is large.

The irradiation of the X-ray irradiating unit 60 (60) varies depending on the inclination angle formed by the support arm (50) and the support frame (30) due to the organic coupling relationship between the first shock absorber (73) and the second shock absorber And the support arm 50 can be effectively canceled.

The arm fixing means 80 includes an arm fixing switch 81 and a magnetic brake 82 for restricting rotation of the disk cam 40 by a user's operation.

The arm fixing switch 81 is disposed near the handle 51 of the support arm 50 to allow the user to operate the arm.

The arm fixing switch 81 is disposed in the vicinity of the handle 51 of the supporting arm 50 so that the user grasps the handle 51 by hand to adjust the position of the supporting arm 50, The arm fixing switch 81 can be operated.

The magnetic brake 82 is arranged close to the disk cam 40 and is magnetized when the current is supplied by the operation of the arm fixing switch 81 of the user to catch the disk cam 40.

It is preferable that the magnetic brake 82 is elastically supported by a spring (not shown) and closely attached to the disc cam 40.

The portable X-ray photographing apparatus described above and easily adjustable in arm position shown in the drawings is only one embodiment for carrying out the present invention, and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is defined only by the matters set forth in the following claims, and the embodiments improved and changed without departing from the gist of the present invention are obvious to those having ordinary skill in the art to which the present invention belongs It will be understood that the invention is not limited thereto.

10 base
11 Moving wheels
20 vertical post
21 Cylinder mounting part
30 Support frame
31 right and left rotation connection
311 Right and left fixed handle
32 Stopper socket
40 disk cam
50 support arm
51 Handle
52 Stopper projection
60 X-ray irradiation unit
61 Tilt bracket
70 damping means
71 Guide Bar
711 load mounting portion
72 connecting rod
73 First gas shock absorber
731 First cylinder body
732 First piston rod
74 Second gas shock absorber
741 Second cylinder body
742 Second piston rod
80 arm fixing means
81 Arm holding switch
82 Magnetic brake

Claims (5)

A movable base; A vertical post erected perpendicular to the base; A support frame rotatably connected to an upper end of the vertical post in a lateral direction; A support arm having one end rotatably connected to the upper end of the support frame in a vertical direction and the other end supported by an X-ray irradiating unit; Damping means for canceling the load moment of the X-ray irradiating unit and the supporting arm; Including,
A disk cam supported on the upper end of the support frame so as to be rotatable about a horizontal axis,
One end of the support arm is fixed to the disk cam so that the support arm is rotated in a vertical direction,
The damping means includes a guide bar movably supported in a vertical direction inside the vertical post, one end hinged to one side of the disc cam so that the rotational motion of the disc cam is converted into a vertical linear movement of the guide bar And the other end is hingedly connected to the upper end of the guide bar, and is vertically disposed in the vertical post, one end is fixed to the vertical post and the other end is connected to the guide bar to move the guide bar in the vertical direction And a first gas shock absorber for canceling a load moment of the X-ray irradiating unit and the support arm by a repulsive force of a compressed gas filled in the X-ray irradiating unit. Device. The method according to claim 1,
The damping means is hinged on one side of the disc cam and hinged on the other side of the support frame so that the damping means is extended and contracted in accordance with the rotation of the disc cam, And a second gas shock absorber for canceling a load moment of the X-ray irradiating unit and the support arm,
Wherein the second gas shock absorber is disposed such that the length of the second gas shock absorber is minimized in a length that is elongated and contracted at a predetermined inclination angle between a maximum inclination angle and a minimum inclination angle formed by the support arm and the support frame, Device. 3. The method according to claim 1 or 2,
The damping means may include a plurality of first gas shock absorbers disposed around the guide bars and each of the plurality of first gas shock absorbers being detachably mounted in the vertical posts so that the repulsive force can be adjusted Wherein the position of the arm is easily adjustable. The method of claim 3,
The vertical post includes an annular cylinder mounting portion formed with cylinder fixing grooves through which the guide bar passes at the center and to which one end of the first gas shock absorber can be detachably bolted, at regular intervals along the circumferential direction,
Wherein the guide bar is provided with an annular rod mounting portion formed at a lower end portion thereof with a rod fixing groove, which can be detachably and detachably bolted to the other end of the gas shock absorber, at regular intervals along the circumferential direction. One mobile x-ray photographing device. 3. The method according to claim 1 or 2,
An arm fixing means for restricting rotation of the disc cam by an operation of a user; Further included,
The support arm is provided with a handle that can be held by hand,
The disk cam is made of a material attached to a magnet,
The arm fixing means includes an arm fixing switch disposed in the vicinity of the handle of the supporting arm and an arm fixing switch disposed close to the disc cam and magnetized when current is supplied by the operation of the arm fixing switch of the user to catch the disc cam And a magnetic brake, wherein the arm position is easily adjusted.

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