CN111489843B

CN111489843B - Medical radiation protection device

Info

Publication number: CN111489843B
Application number: CN202010350754.5A
Authority: CN
Inventors: 孟萌; 吴佳佳; 王丽芹
Original assignee: 8th Medical Center of PLA General Hospital
Current assignee: 8th Medical Center of PLA General Hospital
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2022-02-18
Anticipated expiration: 2040-04-28
Also published as: CN111489843A

Abstract

The invention relates to the technical field of medical instruments, in particular to a medical radiation protection device, which comprises a flexible lead screen, a support, a lead screen rolling and releasing mechanism, a lead screen opening and closing mechanism and a support fixing mechanism, wherein the support can be adjusted in a telescopic manner along the length direction of the support; the lead screen opening and closing mechanism is arranged on the lead screen rolling and releasing mechanism and used for driving the flexible lead screen to open or close; this medical radiation protection device, through can carry out the supporting mechanism of height and lead screen rolling mechanism cooperation, in the use, the height of adjustable flexible lead screen to reach the purpose of adjusting this medical radiation protection device radiation protection scope, satisfy the operation requirement under the different situation, the adaptability is stronger.

Description

Medical radiation protection device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical radiation protection device.

Background

Since 1895X-ray was discovered by roentgen, the development history of radiology has gone through more than 110 years. The ionizing radiation has become the most important clinical auxiliary diagnosis subject, is an indispensable means of modern medicine, brings the truest and objective diagnosis basis for the diagnosis of clinicians, and further, because of the rapid development of the subject, opens up a new way for diagnosis and treatment for the clinical medicine, makes great contribution to the development of the medicine, but also ensures that the living organism is subjected to health hazards of different degrees while the ionizing radiation brings great benefits to the human body. As mentioned in the IAEA and WHO reports, about 70% of the radioprotegers worldwide are in the medical community. Although various levels of health departments and radiation application units adopt corresponding measures to reduce radiation exposure to medical staff and patients, and obtain relatively large effects and results, a large part of the radiation protection results from error zones of staff in radiation protection, and the doses of the staff and the patients caused by the error zones do not accord with the legal and optimal radiation protection principle at all.

In hospital treatment or detection, some devices with radioactive materials are often used, which require special shielding devices to block their rays, reducing the harm to surrounding people, and in some shielding departments or temporary check points, ray protection screens are often used to block ray radiation.

The traditional medical radiation protection screen is composed of a moving wheel and a rigid lead plate, the position of the moving wheel is fixed by a brake pad, the fixing stability of the whole device is poor only by the brake pad, the device is easy to shift by external force or even topple, the rigid lead plate cannot be adjusted in height, the protection range is limited, and meanwhile, the rigid lead plate cannot be folded and opened and closed, so that the whole medical radiation protection screen is large in size, and the use is inconvenient.

In order to solve the above problems, a medical radiation protection device is provided in the present application.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a medical radiation protection device which has the characteristics of high stability, adjustable protection range and capability of being rolled and opened and closed.

(II) technical scheme

In order to solve the technical problems, the invention provides a medical radiation protection device which comprises a flexible lead screen, a support, a lead screen rolling and releasing mechanism, a lead screen opening and closing mechanism and a support fixing mechanism, wherein the support can be adjusted in a telescopic manner along the length direction of the support;

the lead screen opening and closing mechanism is arranged on the lead screen rolling and releasing mechanism and used for driving the flexible lead screen to open or close;

the bracket fixing mechanism is assembled on the bracket so as to fix the bracket in a working state.

Preferably, the support includes fixed bolster, motor frame, first motor, first master gear, lead screw, first gear, movable support, spacing slider and spacing spout from, the bottom in the fixed bolster outside is assembled to the motor frame, first motor fixed mounting is on the motor frame, first master gear is direct or indirect to be installed on the output shaft of first motor, lead screw activity suit is inside the fixed bolster, and the fixed cover in bottom of lead screw is equipped with the first gear from with first master gear meshing, movable support screw thread suit is on the lead screw, set up the spacing spout that is used for the activity of the spacing slider of movable support both sides assembly on the fixed bolster inboard.

Preferably, lead-screen rolling mechanism includes that gear, fixed rings, activity rings, spacing groove, stopper are followed to second motor, second master gear, winding rod, second, the second motor assembles on movable support, and installs the second master gear on the output shaft of second motor, winding rod movable assembly is between two movable support, and the one end of winding rod is equipped with and follows the gear with the second master gear meshing's second, fixed rings fixed assembly is close to movable support at the winding rod and serves, activity rings movable assembly is on winding rod and lie in one side of fixed rings, winding rod top is offered and is used for the movable rings inner wall to assemble the spacing groove of stopper activity.

Preferably, the lead screen mechanism that opens and shuts includes the mount, opens and shuts motor, screw rod, belt pulley, hold-in range, movable block, splice bar and movable sleeve, the mount is installed on the movable support, the motor that opens and shuts is installed on the mount, and installs the screw rod on the output shaft of the motor that opens and shuts, the quantity of screw rod has two, two the screw rod is central symmetry, and all installs the belt pulley on one end of two screw rods, two the belt pulley passes through hold-in range transmission and connects two it is equipped with two movable blocks to be central symmetry cover on the screw rod, the splice bar is fixed in the movable block bottom, and the splice bar bottom is fixed with the movable sleeve of assembly on the winding-up rod.

Preferably, support fixed establishment includes link, fixed sleeve, threaded rod, runner, pinhole, bracing piece, supporting seat, the link is fixed in the bottom at the fixed support openly and the back, the fixed sleeve assembly is at the link middle part, threaded rod screw thread suit is on the fixed sleeve, and the top of threaded rod is fixed with the runner, the pinhole that is used for the pin pole to alternate is seted up at the runner middle part, bracing piece activity assembly is inside the fixed sleeve, and the supporting seat is installed to the bracing piece bottom.

Preferably, the bottom of the fixed bracket is provided with a moving wheel for driving the bracket to move.

Preferably, the bottom of the side surface of the fixed bracket is provided with a through hole, and the outer edge of the first master gear passes through the through hole and extends to the inside of the fixed bracket to be in meshing transmission with the first slave gear.

Preferably, the number of the winding rods is two, two second driven gears mounted at one ends of the two winding rods are in meshing transmission, and the two winding rods are in central symmetry.

Preferably, the end part of the movable sleeve extends out of an annular limiting structure used for being connected with the movable hanging ring, and the annular limiting structure is located inside the movable hanging ring.

Preferably, the bottom of the threaded rod extends into the supporting rod to form an annular limiting structure, and the annular limiting structure is movably sleeved in the supporting rod.

The technical scheme of the invention has the following beneficial technical effects:

1. this medical radiation protection device replaces current stereotype screen through adopting flexible lead screen, and when using, the contact compactness of flexible lead screen and ground is better than rigid stereotype screen, consequently, can avoid protector because of producing the problem that the clearance influences its radiation protection effect with ground.

2. This medical radiation protection device, through can carry out the supporting mechanism of height and lead screen rolling mechanism cooperation, in the use, the height of adjustable flexible lead screen to reach the purpose of adjusting this medical radiation protection device radiation protection scope, satisfy the operation requirement under the different situation, the adaptability is stronger.

3. This medical radiation protection device through setting up lead-shielded rolling mechanism, when the cooperation support carries out the radiation range regulation, under non-service conditions, can carry out the rolling to flexible lead-shielded to reduce the volume of whole device, also can play certain guard action to flexible lead-shielded.

4. This medical radiation protection device opens and shuts the mechanism through setting up the lead screen, under non-user condition, transversely opens two flexible lead screens to make things convenient for personnel's discrepancy, it is more convenient to use.

5. This medical radiation protection device through setting up support fixed establishment, under the user state, supports the support and fixes subaerial to improve this medical radiation protection device stability under the user state, avoid it to empty or skew.

Drawings

FIG. 1 is an elevational view of the overall construction of the present invention;

FIG. 2 is a cross-sectional view of a mounting bracket construction of the present invention;

FIG. 3 is a sectional view of the movable support structure of the present invention;

FIG. 4 is a schematic structural view of a bracket fixing mechanism of the present invention;

FIG. 5 is a cross-sectional view of the retaining sleeve construction of the present invention;

FIG. 6 is a top view of the opening and closing mechanism of the lead screen of the present invention;

FIG. 7 is a top view of the lead screen rolling and unrolling mechanism structure of the present invention;

FIG. 8 is a cross-sectional view of the construction of the removable bail of the present invention;

fig. 9 is an enlarged view of the invention at a in fig. 8.

Reference numerals:

1. a flexible lead screen; 2. a support; 21. fixing a bracket; 22. a motor frame; 23. a first motor; 24. a first main gear; 25. a screw rod; 26. a first slave gear; 27. a movable support; 28. a limiting slide block; 29. a limiting chute; 3. a lead screen rolling and releasing mechanism; 31. a second motor; 32. a second main gear; 33. winding the rod; 34. a second slave gear; 35. fixing a lifting ring; 36. a movable hanging ring; 37. a limiting groove; 38. a limiting block; 4. a lead screen opening and closing mechanism; 41. a fixed mount; 42. an opening and closing motor; 43. a screw; 44. a belt pulley; 45. a synchronous belt; 46. a moving block; 47. connecting ribs; 48. a movable sleeve; 5. a moving wheel; 6. a bracket fixing mechanism; 61. a connecting frame; 62. fixing the sleeve; 63. a threaded rod; 64. a rotating wheel; 65. a pin hole; 66. a support bar; 67. and (4) supporting the base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the medical radiation protection device comprises a support 2, wherein the support 2 can be vertically adjusted in height.

The bracket 2 comprises a fixed bracket 21, a motor frame 22, a first motor 23, a first main gear 24, a screw rod 25, a first driven gear 26, a movable bracket 27, a limit slide block 28 and a limit slide groove 29.

In this embodiment, the first motor 23 is used to drive the first master gear 24 to rotate, so as to drive the screw rod 25 to rotate by the transmission of the first slave gear 26, and then the limit slider 28 and the limit chute 29 are used to limit the movable bracket 27 laterally, so that the movable bracket 27 can perform vertical height adjustment along the screw rod 25, and further adjust the height of the whole bracket 2.

Further cooperate the lead screen rolling and unrolling mechanism 3 to roll or unroll the two flexible lead screens 1, so as to achieve the purpose of adjusting the height of the flexible lead screens, and further adjust the protection range of the radiation protection device.

The motor frame 22 is assembled at the bottom of the outer side of the fixed support 21, the first motor 23 is fixedly installed on the motor frame 22, the first main gear 24 is directly or indirectly installed on an output shaft of the first motor 23, the screw rod 25 is movably sleeved inside the fixed support 21, a first driven gear 26 meshed with the first main gear 24 is fixedly sleeved at the bottom of the screw rod 25, and the movable support 27 is sleeved on the screw rod 25 in a threaded manner.

The first main gear 24 and the first auxiliary gear 26 are used for moving to drive the screw rod 25 to rotate, so that the first motor 23 can indirectly drive the screw rod 25 to rotate, the first motor 23 is convenient to mount outside the fixed bracket 21, and the mounting and subsequent maintenance of the first motor 23 are convenient.

The inner side of the fixed bracket 21 is provided with a limit sliding chute 29 for the movement of a limit sliding block 28 assembled at two sides of the movable bracket 27.

In order to prevent the movable bracket 27 from rotating along with the screw rod 25, the movable bracket 27 is limited by the limiting slide blocks 28 assembled at the two sides of the movable bracket 27 and the limiting slide grooves 29 arranged on the inner wall of the fixed bracket 21, so that the movable bracket 27 can vertically lift on the screw rod 25.

Referring to fig. 1, fig. 2, fig. 7, and fig. 8, the flexible lead screen 1 is directly or indirectly connected to the lead screen rolling and releasing mechanism 3.

The lead screen rolling and unrolling mechanism 3 comprises a second motor 31, a second main gear 32, a rolling rod 33, a second driven gear 34, a fixed hanging ring 35, a movable hanging ring 36, a limiting groove 37 and a limiting block 38.

In this embodiment, the second main gear 32 is driven to rotate by the second motor 31, so that the two winding rods 33 are driven to rotate by the transmission of the two second slave gears 34, and the two flexible lead screens 1 are respectively wound on the two winding rods 33, so as to reduce the volume of the whole device, and prevent the flexible lead screens 1 from being damaged due to contact with other objects.

It should be noted that the second motor 31 is only required to rotate in the reverse direction for releasing the flexible lead screen 1, and the forward and reverse rotation control of the motor is well known to those skilled in the art, so that the description in this application is not repeated.

The second motor 31 is assembled on the movable brackets 27, a second main gear 32 is installed on an output shaft of the second motor 31, the winding rod 33 is movably assembled between the two movable brackets 27, and one end of the winding rod 33 is assembled with a second slave gear 34 engaged with the second main gear 32.

The diameter value of the second slave gear 34 is larger than that of the second master gear 32, the second motor 31 is used for driving the second master gear 32 to rotate, and then the second master gear 32 with a small diameter is used for driving the second slave gear 34 with a large diameter to rotate, so that the rotating speed of the winding rod 33 can be reduced, and the flexible lead screen 1 is prevented from being wound and unwound too fast.

The fixed hanging ring 35 is fixedly assembled at one end of the rolling rod 33 close to the movable bracket 27, and the movable hanging ring 36 is movably assembled on the rolling rod 33 and is positioned at one side of the fixed hanging ring 35.

The fixed hanging ring 35 and the movable hanging ring 36 are used for installing the flexible lead screen 1, and the plurality of movable hanging rings 36 are used for facilitating the subsequent opening and closing of the flexible lead screen 1.

The top of the rolling rod 33 is provided with a limit groove 37 for the movement of a limit block 38 assembled on the inner wall of the movable hanging ring 36.

The cooperation of the limiting groove 37 arranged at the top of the winding rod 33 and the limiting block 38 arranged at the top of the inner wall of the movable hanging ring 36 is utilized to limit the movement of the movable hanging ring 36, so that the movable hanging ring 36 is prevented from rotating when the winding rod 33 rotates while the movable hanging ring 36 can horizontally and transversely move, the winding of the flexible lead screen 1 is facilitated, and the winding regularity of the flexible lead screen 1 is improved.

Referring to fig. 1, fig. 2, fig. 6, fig. 8 and fig. 9, in the present embodiment, the lead screen rolling and unrolling mechanism 3 is installed on the top of the flexible lead screen 1, and the direction in which the lead screen rolling and unrolling mechanism 3 drives the flexible lead screen 1 to roll is the same as the direction in which the height of the support 2 is adjusted.

In this embodiment, the winding of the flexible lead screen 1 and the height adjustment of the bracket 2 can be synchronous or asynchronous.

In a synchronous state, the first motor 23 is started simultaneously to drive the first master gear 24 to rotate, the lead screw 25 is driven to rotate by the transmission of the first slave gear 26, so that the movable bracket 27 is driven to ascend or descend, meanwhile, the second motor 31 drives the second master gear 32 to rotate, so that the second slave gear 34 is driven to rotate, the two winding rods 33 are driven to rotate simultaneously by the meshing transmission of the two second slave gears 34, and when the movable bracket 27 descends and the overall height of the bracket 2 is reduced, the two winding rods 33 synchronously rotate to wind the flexible lead screen 1; when the movable support 27 rises and the overall height of the support 2 is increased, the two winding rods 33 synchronously rotate reversely to unwind the flexible lead screen 1;

under the asynchronous state, raise support 2 whole earlier, unreeling flexible lead screen 1, and when descending support 2 whole height, carry out the rolling to flexible lead screen 1 earlier.

The lead screen opening and closing mechanism 4 is arranged on the lead screen rolling and releasing mechanism 3 and is used for driving the flexible lead screen 1 to open and close;

the lead screen opening and closing mechanism comprises a fixed frame 41, an opening and closing motor 42, a screw 43, a belt pulley 44, a synchronous belt 45, a moving block 46, a connecting rib 47 and a movable sleeve 48.

The opening and closing motor 42 is used for driving the belt pulley 44 to rotate, and then the synchronous belt 45 is used for driving the two screw rods 43 to rotate, so that the moving blocks 46 on the two screw rods 43 can be driven to move oppositely or reversely at the same time, and the flexible lead screen 1 is opened and closed.

The fixed frame 41 is arranged on the movable support 27, the opening and closing motor 42 is arranged on the fixed frame 41, screw rods 43 are arranged on an output shaft of the opening and closing motor 42, the number of the screw rods 43 is two, the two screw rods 43 are in central symmetry, belt pulleys 44 are arranged at one end of each of the two screw rods 43, the two belt pulleys 44 are in transmission connection through a synchronous belt 45, and two moving blocks 46 are symmetrically sleeved on the two screw rods 43 in the central symmetry.

Because the two screw rods 43 are centrosymmetric, the threads on the two screw rods 43 are opposite, and when the two screw rods 43 are driven to rotate, the two moving blocks 46 move oppositely or in opposite directions at the same time, so that the two flexible lead screens 1 are driven to move oppositely or in opposite directions at the same time to open and close.

The connecting rib 47 is fixed at the bottom of the moving block 46, and a movable sleeve 48 assembled on the winding rod 33 is fixed at the bottom of the connecting rib 47.

The movable block 46 and the movable sleeve 48 are connected by the connecting ribs 47, and the movable sleeve 48 cannot rotate on the winding rod 33, so that the movable block 46 is limited, and the movable block 46 is prevented from rotating along with the screw 43.

The end of the movable sleeve 48 extends out of an annular limiting structure for connecting the movable hanging ring 36, and the annular limiting structure is positioned inside the movable hanging ring 36.

On one hand, when the two flexible lead screens 1 need to be closed, the movable sleeve 48 is utilized to horizontally drag the movable hanging ring 36 to transversely move, so that the folded parts of the flexible lead screens 1 are unfolded; on the other hand, when the winding rod 33 rotates, the movable hanging ring 36 can be arranged at

Referring to fig. 1, 4 and 5, in the present embodiment, the bracket fixing mechanism 6 is assembled on the bracket 2 and used for supporting and fixing the bracket 2 in a working state.

The support fixing mechanism 6 comprises a connecting frame 61, a fixing sleeve 62, a threaded rod 63, a rotating wheel 64, a pin hole 65, a supporting rod 66 and a supporting seat 67.

In a working state, the threaded rod 63 is rotated by the pin rod passing through the pin hole 65 on the rotating wheel 64, so that the threaded rod 63 is screwed into the fixed sleeve 62, and the supporting seat 67 at the bottom of the supporting rod 66 is driven to descend to contact with the ground to form a support.

The connecting frame 61 is fixed in the bottom of the front and the back of the fixed support 21, the fixed sleeve 62 is assembled in the middle of the connecting frame 61, the threaded rod 63 is sleeved on the fixed sleeve 62 in a threaded manner, the top of the threaded rod 63 is fixed with a rotating wheel 64, and the middle of the rotating wheel 64 is provided with a pin hole 65 for the pin rod to penetrate.

By using the pin hole 65 formed on the rotating wheel 64, when the rotating wheel 64 is rotated, the rod body structures such as a pin rod and a pin shaft can penetrate through the pin hole 65 to form a handle structure positioned on the rotating wheel 64, so that the rotating wheel 64 can be conveniently rotated.

The support rod 66 is movably assembled inside the fixed sleeve 62, and a support seat 67 is installed at the bottom of the support rod 66.

Utilize the supporting seat 67 and the ground contact of bracing piece 66 bottom, can improve the whole area of contact and the frictional force on ground of support 2, compare in adopt the brake block on the removal wheel 5 to carry out single fixed mode to support 2, this device is better to the steadiness that support 2 fixed.

The fixed bracket 21 is provided at the bottom with a moving wheel 5 for driving the bracket 2 to move.

In order to facilitate the movement of the device, moving wheels 5 are arranged on the two brackets 2, so that the movement of the device can be facilitated.

The bottom of the threaded rod 63 extends into the support rod 66 to form an annular limiting structure, and the annular limiting structure is movably sleeved in the support rod 66.

The annular limiting structure is utilized to achieve the purpose of connecting the screw 63 with the supporting rod 66, and when the threaded rod 63 is screwed in or out of the fixed sleeve 62, the supporting rod 66 is stretched in the fixed sleeve 62, so that the supporting seat 67 is driven to lift; because this annular limit structure activity suit is on bracing piece 66, when connecting screw 63 was rotatory, bracing piece 66 can not follow connecting screw 63 and rotate, makes things convenient for the support of supporting seat 67 and ground fixed.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A medical radiation protection device is characterized by comprising a flexible lead screen (1), a support (2), a lead screen rolling and releasing mechanism (3), a lead screen opening and closing mechanism (4) and a support fixing mechanism (6), wherein the support (2) can be adjusted in a telescopic mode along the length direction of the support, the lead screen rolling and releasing mechanism (3) is directly or indirectly installed at the top of the flexible lead screen (1) and used for rolling or releasing the flexible lead screen (1), and the lead screen rolling and releasing mechanism (3) drives the flexible lead screen (1) to roll or release in the same direction as the telescopic direction of the support (2);

the lead screen opening and closing mechanism (4) is arranged on the lead screen rolling and releasing mechanism (3) and is used for driving the flexible lead screen (1) to open or close;

the bracket fixing mechanism (6) is assembled on the bracket (2) so as to fix the bracket (2) in a working state;

the bracket (2) comprises a fixed bracket (21), a motor frame (22), a first motor (23), a first main gear (24), a screw rod (25), a first driven gear (26), a movable bracket (27), a limiting slide block (28) and a limiting slide groove (29), the motor frame (22) is assembled at the bottom of the outer side of the fixed support (21), the first motor (23) is fixedly arranged on the motor frame (22), the first main gear (24) is directly or indirectly arranged on an output shaft of the first motor (23), the screw rod (25) is movably sleeved in the fixed bracket (21), and the bottom of the screw rod (25) is fixedly sleeved with a first driven gear (26) meshed with the first main gear (24), the movable support (27) is sleeved on the screw rod (25) in a threaded manner, and the inner side of the fixed support (21) is provided with a limiting sliding groove (29) for the movement of a limiting sliding block (28) assembled on two sides of the movable support (27);

lead screen rolling mechanism (3) include second motor (31), second master gear (32), winding rod (33), second from gear (34), fixed rings (35), activity rings (36), spacing groove (37), stopper (38), second motor (31) assembly is on movable support (27), and installs second master gear (32) on the output shaft of second motor (31), winding rod (33) movable assembly is between two movable support (27), and the one end of winding rod (33) is equipped with second from gear (34) with second master gear (32) meshing, fixed rings (35) fixed assembly is on winding rod (33) is close to movable support (27) one end, activity rings (36) movable assembly is on winding rod (33) and is located one side of fixed rings (35), winding rod (33) top is offered and is used for activity rings (36) inner wall to assemble the spacing groove of stopper (38) activity (37) (ii) a

The lead screen opening and closing mechanism (4) comprises a fixed frame (41), an opening and closing motor (42), a screw rod (43), a belt pulley (44), a synchronous belt (45), a moving block (46), a connecting rib (47) and a movable sleeve (48), the fixed frame (41) is arranged on the movable bracket (27), the opening and closing motor (42) is arranged on the fixed frame (41), and the output shaft of the opening and closing motor (42) is provided with two screw rods (43), the two screw rods (43) are in central symmetry, and one end of each of the two screw rods (43) is provided with a belt pulley (44), the two belt pulleys (44) are in transmission connection through a synchronous belt (45), two moving blocks (46) are sleeved on the two screw rods (43) in a central symmetry manner, the connecting ribs (47) are fixed at the bottoms of the moving blocks (46), and the bottom of the connecting rib (47) is fixed with a movable sleeve (48) assembled on the winding rod (33);

support fixed establishment (6) are including link (61), fixed bolster (62), threaded rod (63), runner (64), pinhole (65), bracing piece (66), supporting seat (67), the bottom at the front and the back of fixed bolster (21) is fixed in link (61), fixed bolster (62) assembly is in link (61) middle part, threaded rod (63) screw thread suit is on fixed bolster (62), and the top of threaded rod (63) is fixed with runner (64), pinhole (65) that are used for the pin pole to alternate are offered at runner (64) middle part, bracing piece (66) movable assembly is inside fixed bolster (62), and supporting seat (67) are installed to bracing piece (66) bottom.

2. A medical radiation protection device according to claim 1, characterized in that the bottom of the fixed bracket (21) is equipped with a moving wheel (5).

3. The medical radiation protection device according to claim 1, wherein the bottom of the side surface of the fixing support (21) is provided with a through hole, and the outer edge of the first master gear (24) extends to the inside of the fixing support (21) through the through hole to be meshed with the first slave gear (26) for transmission.

4. A medical radiation protection device according to claim 1, wherein the number of said winding rods (33) is two, two second driven gears (34) mounted at one end of two said winding rods (33) are in mesh transmission, and the two winding rods (33) are in central symmetry.

5. The medical radiation protection device of claim 1, wherein the end of the movable sleeve (48) extends out of an annular limiting structure for connecting the movable hanging ring (36), and the annular limiting structure is positioned inside the movable hanging ring (36).

6. The medical radiation protection device of claim 1, wherein the bottom of the threaded rod (63) extends into the support rod (66) to form an annular limiting structure, and the annular limiting structure is movably sleeved in the support rod (66).