Ray shielding protection device for medical diagnosis and treatment

Abstract

The invention relates to a ray shielding protection device for medical diagnosis and treatment, which comprises a base and a transverse plate movably arranged on the base, and further comprises a first round roller which is rotatably arranged on one side of the transverse plate and is wound with a ray protection curtain, a rotating shaft of the first round roller is connected with a lifting mechanism installed on the base through a transmission mechanism, and the lifting mechanism is used for driving the transverse plate to ascend and descend and driving the first round roller to rotate through the transmission mechanism so that the first round roller can execute the action of releasing or rolling the ray protection curtain; the two long strip plates are movably arranged on the transverse plate and connected with a deflection driving mechanism installed on the transverse plate, the two long strip plates are each rotationally provided with a second round roller, the two second round rollers are also wound with a ray protection curtain, finally, the function of switching the protection range is achieved, practicability is improved, and the protection effect is good. And a reliable protection space is provided for medical radiology workers, and the popularization value is high.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, in particular to a radiation shielding protection device used for medical diagnosis and treatment. Background Art

[0002] In recent years, with the advanced X-ray diagnosis, as well as the update and popularization of cardiovascular angiography and angioplasty, radiological interventional treatment has been widely carried out. In delicate operations such as cardiovascular angiography and angioplasty, medical radiologists must be exposed to X-ray fields for a long time.

[0003] If the body is exposed to X-rays continuously or intermittently for a long time and reaches a certain dose, the cells in the tissues are inactivated by ionizing radiation, which causes radiation damage mainly in the form of hematopoietic tissue damage, and even leads to leukemia, skin cancer, etc. When the eyes are exposed to excessive radiation for a long time, it will cause lens lesions and radiation cataracts. Under this development trend, how to protect against radiation is particularly important. In actual work in the medical field, due to limited conditions, simply shortening the contact time and increasing the distance cannot achieve the purpose of safe operation, so the use of protective shielding equipment has become the key to reducing the radiation exposure of personnel.

[0004] Protective shielding equipment is divided into two parts: protective devices and personal protective equipment. Protective devices mainly include: radiation protection screens, radiation protection curtains, radiation protection covers, etc. Personal protective equipment is mainly protective clothing. Most of the existing radiation protection curtains are fixed, and their protection range is fixed. In actual use, they are not flexible, and thus it is difficult to provide more reliable protection for medical radiology workers. Summary of the invention

[0005] The object of the present invention is to provide a radiation shielding protection device for medical diagnosis and treatment to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A radiation shielding and protection device for medical diagnosis and treatment, comprising a base and a horizontal plate movably arranged on the base and parallel to the base, and further comprising: a first round roller, rotatably mounted on one side of the horizontal plate, and having a radiation protection curtain wound thereon; a rotating shaft of the first round roller being connected to a lifting mechanism mounted on the base through a transmission mechanism; the lifting mechanism being used to drive the horizontal plate to rise and fall, and driving the first round roller to rotate through the transmission mechanism, so that the first round roller performs a release or reeling action on the radiation protection curtain; Two long strips are movably provided on the horizontal plate and are connected to the deflection drive mechanism installed on the horizontal plate. A second round roller is rotatably installed on each of the two long strips, and radiation protection curtains are also wrapped around the two second round rollers. The deflection drive mechanism is used to drive the two second round rollers to perform the stretching action, and is connected to the rotating shaft of the first round roller through the gearing mechanism to change the protection range of the radiation protection curtain.

[0007] As a further solution of the present invention: two cross bars are fixedly installed on the cross plate, and the two long strips are slidably arranged on the cross bars. The deflection drive mechanism includes two deflection plates installed on the cross plate, and the deflection plates are connected to the long strips through a sliding matching structure, and the rotating shaft of one of the deflection plates is connected to a locking assembly, and the rotating shafts of the two deflection plates are connected through a gear set.

[0008] As a further solution of the present invention: the sliding matching structure includes a strip-shaped deep groove opened along the length direction of the long strip and a column fixedly installed on the deflection plate, and the column extends into the strip-shaped deep groove and is slidably connected to the long strip.

[0009] As a further solution of the present invention: a deep hole is formed at one end of the rotation axis of one of the deflection plates away from the horizontal plate, and the locking assembly comprises a telescopic rod slidably arranged in the deep hole through a limiting structure and a cylindrical spring arranged in the deep hole; Among them, one end of the cylindrical spring is connected to the bottom wall of the deep hole, and the other end is connected to the telescopic rod. A locking rod is also fixed to the outer wall of the telescopic rod, and two locking holes adapted to the locking rod are also provided on the horizontal plate.

[0010] As a further solution of the present invention: the limiting structure includes a plurality of strip-shaped protrusions fixedly arranged on the inner wall of the deep hole at equal intervals along the circumference and a plurality of strip-shaped grooves opened on the outer wall of the telescopic rod at equal intervals along the circumference, the strip-shaped grooves are slidably fitted with the strip-shaped protrusions, and both are parallel to the rotation axis of the deflection plate and the central axis of the telescopic rod.

[0011] As a further solution of the present invention: the meshing mechanism includes a static gear rotatably mounted on one side of the transverse plate and a dynamic gear fixedly mounted on the rotating shaft of the second round roller, and a fourth transmission belt is connected between the rotating shafts of the static gear and the first round roller.

[0012] As a further solution of the present invention: a transmission shaft connected to the lifting mechanism is rotatably mounted on the base, the transmission mechanism comprises a first connecting plate and a second connecting plate whose head ends are rotatably connected via a shaft, the tail end of the first connecting plate is rotatably connected to the transmission shaft, and the tail end of the second connecting plate is rotatably connected to the rotating shaft of the first round roller; Wherein, the shaft is connected to the transmission shaft through a first transmission belt, and is also connected to the rotating shaft of the first round roller through a second transmission belt.

[0013] As a further solution of the present invention: the lifting mechanism includes a threaded assembly installed on the base and two sets of connecting structures connecting the threaded assembly and the transverse plate, the threaded assembly includes a bidirectional screw rod rotatably installed on the base, a guide rod fixed on the base and two transverse plates symmetrically arranged on the base; Wherein, the bidirectional screw is connected to the transmission shaft through a third transmission belt, and the transverse plate is threadedly connected to the bidirectional screw and slidably connected to the guide rod.

[0014] As a further solution of the present invention: the connection structure comprises a first push-pull rod and a second push-pull rod rotatably connected at their midpoints by an axle pin, and a first connecting rod and a second connecting rod hinged to the transverse plate at their head ends, one end of the first push-pull rod and the second push-pull rod being hinged to the two transverse plates respectively, and the other end being hinged to the first connecting rod and the second connecting rod at their ends away from the transverse plate respectively; A convex column is fixed at the midpoint of the first connecting rod, a strip-shaped through groove is provided on the second connecting rod, and the convex column passes through the strip-shaped through groove and is slidably connected to the second connecting rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the present invention is novel in design. When in use, the lifting mechanism works to drive the cross plate to rise, and then the height of the first round roller rises. At the same time, the lifting mechanism drives the first round roller to rotate through the transmission mechanism, so that the first round roller releases the radiation protection curtain thereon, thereby forming a reliable protection surface. Before the lifting mechanism works, the medical staff can control the movement of the deflection mechanism, and then the deflection drive mechanism can drive the two second round rollers to move away from each other until the meshing mechanism is connected to the rotating shaft of the first round roller. Therefore, during the subsequent rising process of the first round roller, the second round roller can rotate synchronously with the first round roller, so that the protection surface is increased, thereby realizing the switching function of the protection range, increasing practicality, and providing a reliable protection space for medical radiology workers, with high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An axonometric view of an embodiment of a radiation shielding protection device for medical diagnosis and treatment.

[0017] Figure 2 The present invention is a schematic structural diagram of an embodiment of a radiation shielding protection device for medical diagnosis and treatment.

[0018] Figure 3 The present invention is a schematic structural diagram from another angle of an embodiment of a radiation shielding protection device for medical diagnosis and treatment.

[0019] Figure 4 The present invention is a structural schematic diagram from another angle of an embodiment of a radiation shielding protection device for medical diagnosis and treatment.

[0020] Figure 5 for Figure 4 A magnified view of the structure at center.

[0021] Figure 6 The present invention is a schematic structural diagram of a deflection drive mechanism in one embodiment of a radiation shielding and protection device for medical diagnosis and treatment.

[0022] Figure 7 for Figure 6 A magnified view of the structure at point B.

[0023] Figure 8 The present invention is a schematic diagram of the connection state of the lifting mechanism and the transmission mechanism in one embodiment of a radiation shielding protection device for medical diagnosis and treatment.

[0024] In the figure: 1. base; 2. cross plate; 3. first round roller; 4. second round roller; 5. transverse plate; 6. bidirectional screw rod; 7. guide rod; 8. rotating wheel; 9. first push-pull rod; 10. second push-pull rod; 11. first connecting rod; 12. second connecting rod; 13. transmission shaft; 14. first connecting plate; 15. second connecting plate; 16. first transmission belt; 17. second transmission belt; 18. shaft; 19. boss; 20. strip groove; 21. cross bar; 22. long strip plate; 23. third transmission belt; 24. deflection plate; 25. gear set; 26. deep hole; 27. telescopic rod; 28. columnar spring; 29. ​​locking rod; 30. moving gear; 31. static gear; 32. fourth transmission belt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0027] See also Figure 1-8 In an embodiment of the present invention, a radiation shielding protection device for medical diagnosis and treatment includes a base 1 and a horizontal plate 2 movably arranged on the base 1 and parallel to the base 1, and also includes a first round roller 3, which is rotatably installed on one side of the horizontal plate 2 and has a radiation protection curtain wound thereon, and the rotating shaft of the first round roller 3 is connected to a lifting mechanism installed on the base 1 through a transmission mechanism, and the lifting mechanism is used to drive the horizontal plate 2 to rise and fall, and drive the first round roller 3 to rotate through the transmission mechanism, so that the first round roller 3 performs a release or reeling action on the radiation protection curtain; Two long strips 22 are movably provided on the horizontal plate 2 and are connected to the deflection drive mechanism installed on the horizontal plate 2. A second round roller 4 is rotatably installed on each of the two long strips 22, and radiation protection curtains are also wound around the two second round rollers 4. The deflection drive mechanism is used to drive the two second round rollers 4 to perform a stretching action, and is connected to the rotating shaft of the first round roller 3 through a gearing mechanism to change the protection range of the radiation protection curtain.

[0028] It should be additionally explained that, in actual use, a plurality of pulleys may be installed at the bottom of the base 1 to facilitate the movement and transfer of the device.

[0029] When in use, the lifting mechanism works to drive the horizontal plate 2 to rise, and then the height of the first round roller 3 rises. At the same time, the lifting mechanism drives the first round roller 3 to rotate through the transmission mechanism, so that the first round roller 3 releases the radiation protection curtain thereon, thus forming a reliable protection surface; Before the lifting mechanism works, medical staff can control the movement of the deflection mechanism, and then the deflection drive mechanism can drive the two second rollers 4 to move away from each other until the meshing mechanism is connected to the rotating shaft of the first roller 3. Then, when the first roller 3 is rising, the second roller 4 can rotate synchronously with the first roller 3, so that the protection surface is increased, thereby realizing the switching function of the protection range, increasing practicality, and providing a reliable protection space for medical radiology workers, with high promotion value.

[0030] Please refer again Figure 4-7Two cross bars 21 are fixedly mounted on the cross plate 2, and the two long strips 22 are slidably arranged on the cross bars 21. The deflection drive mechanism includes two deflection plates 24 mounted on the cross plate 2, and the deflection plates 24 are connected to the long strips 22 through a sliding fit structure, and a locking assembly is connected to the rotating shaft of one of the deflection plates 24, and the rotating shafts of the two deflection plates 24 are connected through a gear set 25.

[0031] Specifically, the gear set 25 includes a first gear and a second gear respectively fixedly mounted on the rotating shafts of the two deflection plates 24 . The second gear meshes with the first gear and is identical to each other to achieve a geometric transmission between the two deflection plates 24 .

[0032] The sliding matching structure includes a strip-shaped deep groove opened along the length direction of the long strip plate 22 and a column fixedly installed on the deflection plate 24 , and the column extends into the strip-shaped deep groove and is slidably connected to the long strip plate 22 .

[0033] When in use, medical staff can rotate one of the deflection plates 24 through the locking assembly, so that the two deflection plates 24 can be deflected synchronously but in different directions through the gear set 25. During this process, the column on the deflection plate 24 can slide with the long plate 22 through the strip-shaped deep groove on the long plate 22, and the two long plates 22 slide away from each other on the cross bar 21. Correspondingly, the two second round rollers 4 move away from each other and are respectively located on both sides of the cross plate 2, thereby increasing the protection range of the final radiation protection curtain.

[0034] A deep hole 26 is formed at one end of the rotation axis of one of the deflection plates 24 away from the horizontal plate 2, and the locking assembly includes a telescopic rod 27 slidably arranged in the deep hole 26 through a limiting structure and a cylindrical spring 28 arranged in the deep hole 26; Among them, one end of the cylindrical spring 28 is connected to the bottom wall of the deep hole 26, and the other end is connected to the telescopic rod 27. A locking rod 29 is also fixed to the outer wall of the telescopic rod 27, and two locking holes adapted to the locking rod 29 are also opened on the cross plate 2.

[0035] The limiting structure includes a plurality of strip-shaped protrusions fixedly arranged on the inner wall of the deep hole 26 at equal intervals along the circumference, and a plurality of strip-shaped grooves opened on the outer wall of the telescopic rod 27 at equal intervals along the circumference. The strip-shaped grooves are slidably matched with the strip-shaped protrusions, and both are parallel to the rotation axis of the deflection plate 24 and the central axis of the telescopic rod 27.

[0036] In actual use, when the protection range of the radiation protection curtain needs to be increased due to work needs, the medical staff pulls the telescopic rod 27 to the outside of the deep hole 26, so that the locking rod 29 is pulled out from one of the lock holes on the cross plate 2, and the cylindrical spring 28 is stretched. Then, the medical staff can rotate the telescopic rod 27, and accordingly, the telescopic rod 27 drives the deflection plate 24 to rotate through the strip groove on its outer wall and the strip protrusion on the inner wall of the deep hole 26. When the two second round rollers 4 move to the end of the stroke, the locking rod 29 is aligned with another lock hole on the cross plate 2. At this time, the medical staff releases the telescopic rod 27, and the cylindrical spring 28 performs elastic recovery, so that the telescopic rod 27 slides down and resets, and the locking rod 29 is inserted into the corresponding lock hole at this time to achieve locking, thereby ensuring the stability of the transmission state of the first round roller 3 to the two second round rollers 4.

[0037] Please refer again Figure 2 The meshing mechanism includes a stationary gear 31 rotatably mounted on one side of the transverse plate 2 and a movable gear 30 fixedly mounted on the rotating shaft of the second round roller 4, and a fourth transmission belt 32 is connected between the rotating shafts of the stationary gear 31 and the first round roller 3.

[0038] When the medical staff drives the two second rollers 4 to move away from each other, and after the two second rollers 4 move to the end of the stroke and are locked, the movable gear 30 reaches a position meshing with the static gear 31, and then, during the rising and rotation of the first roller 3, its rotating shaft can drive the static gear 31 to rotate through the fourth transmission belt 32, and the static gear 31 rotates with the second roller 4 through the movable gear 30, so that the second roller 4 and the first roller 3 synchronously release the radiation protection curtain.

[0039] Please refer again Figure 8 A transmission shaft 13 connected to the lifting mechanism is rotatably mounted on the base 1, and the transmission mechanism includes a first connecting plate 14 and a second connecting plate 15 whose head ends are rotatably connected through a shaft 18, the tail end of the first connecting plate 14 is rotatably connected to the transmission shaft 13, and the tail end of the second connecting plate 15 is rotatably connected to the rotation axis of the first round roller 3. The shaft 18 is connected to the transmission shaft 13 through a first transmission belt 16, and is also connected to the rotation axis of the first round roller 3 through a second transmission belt 17.

[0040] Please refer again Figure 1 , Figure 3 as well as Figure 8The lifting mechanism includes a threaded assembly mounted on the base 1 and two sets of connection structures connecting the threaded assembly and the transverse plate 2. The threaded assembly includes a bidirectional screw rod 6 rotatably mounted on the base 1, a guide rod 7 fixed on the base 1, and two transverse plates 5 symmetrically arranged on the base 1. The bidirectional screw rod 6 is connected to the transmission shaft 13 through a third transmission belt 23, and the transverse plate 5 is threadedly connected to the bidirectional screw rod 6 and slidably connected to the guide rod 7.

[0041] Further, the bidirectional screw rod 6 is symmetrically provided with two sections of threads, and the two sections of threads have opposite rotation directions, and the transverse plate 5 is provided with two through holes for the bidirectional screw rod 6 and the guide rod 7 to pass through respectively, wherein the inner wall of the through hole through which the bidirectional screw rod 6 passes is provided with a thread engaged with the bidirectional screw rod 6; It should also be added that in order to facilitate the rotation of the bidirectional screw rod 6 during use, a rotating wheel 8 is fixed to one end of the bidirectional screw rod 6. Medical staff can control the forward or reverse rotation of the bidirectional screw rod 6 through the rotating wheel 8. Of course, the rotating wheel 8 can also be replaced by a motor (forward and reverse motor) to realize the automation of the device.

[0042] The connection structure includes a first push-pull rod 9 and a second push-pull rod 10 rotatably connected at the midpoint by an axle pin, and a first connecting rod 11 and a second connecting rod 12 whose head ends are hinged to the transverse plate 2, one end of the first push-pull rod 9 and the second push-pull rod 10 are respectively hinged to the two transverse plates 5, and the other end is respectively hinged to the first connecting rod 11 and the second connecting rod 12 one end away from the transverse plate 2; A boss 19 is fixed at the midpoint of the first connecting rod 11 , a strip-shaped through slot 20 is formed on the second connecting rod 12 , and the boss 19 passes through the strip-shaped through slot 20 and is slidably connected to the second connecting rod 12 .

[0043] When in use, the medical staff determines the positions of the two second round rollers 4 according to the actual situation, and rotates the bidirectional screw 6 forwardly through the rotating wheel 8, so that the guide rod 7 guides the two transverse plates 5, so that the two transverse plates 5 are threadedly matched with the bidirectional screw 6 at the same time and move close to each other, and then the first push-pull rod 9 and the second push-pull rod 10 rotate at the same time, and the first connecting rod 11 and the second connecting rod 12 also move, and then the protruding column 19 is slidably matched with the second connecting rod 12 through the strip groove 20, so that the transverse plate 2 drives the first round roller 3 and the two second round rollers 4 to rise; At the same time, the bidirectional screw 6 drives the transmission shaft 13 to rotate through the third transmission belt 23, and the transmission shaft 13 drives the first round roller 3 to rotate through the first transmission belt 16, the shaft 18 and the second transmission belt 17, so that the first round roller 3 releases the radiation protection curtain. However, as the height of the cross plate 2 increases, the angle between the first connecting plate 14 and the second connecting plate 15 will gradually increase, while the transmission state of the bidirectional screw 6 to the first round roller 3 is still maintained.

[0044] When the radiation shielding protection device for medical diagnosis and treatment is implemented, the two-way screw rod 6 is rotated forwardly by the rotating wheel 8, so that the guide rod 7 guides the two transverse plates 5, so that the two transverse plates 5 are threadedly matched with the two-way screw rod 6 at the same time and move close to each other, and then the first push-pull rod 9 and the second push-pull rod 10 rotate at the same time, and the first connecting rod 11 and the second connecting rod 12 also move, and then the protruding column 19 is slidably matched with the second connecting rod 12 through the strip-shaped through groove 20, so that the transverse plate 2 drives the first round roller 3 and the two second round rollers 4 to rise; At the same time, the bidirectional screw 6 drives the transmission shaft 13 to rotate through the third transmission belt 23, and the transmission shaft 13 drives the first roller 3 to rotate through the first transmission belt 16, the shaft 18 and the second transmission belt 17, so that the first roller 3 performs the release action of the radiation protection curtain. However, as the height of the cross plate 2 increases, the angle between the first connecting plate 14 and the second connecting plate 15 will gradually increase, while the transmission state of the bidirectional screw 6 to the first roller 3 is still maintained; When the protection range of the radiation protection curtain needs to be increased due to work needs, the medical staff pulls the telescopic rod 27 to the outside of the deep hole 26, so that the locking rod 29 is pulled out of one of the lock holes on the cross plate 2, and the cylindrical spring 28 is stretched. Then, the medical staff can rotate the telescopic rod 27. Correspondingly, the telescopic rod 27 drives the deflection plate 24 to rotate through the strip groove on its outer wall and the strip protrusion on the inner wall of the deep hole 26. When the two second round rollers 4 move to the end of the stroke, the locking rod 29 is aligned with another lock hole on the cross plate 2. At this time, the medical staff releases the telescopic rod 27, and the cylindrical spring 28 performs elastic recovery, so that the telescopic rod 27 slides down and resets, and the locking rod 29 is inserted into the corresponding lock hole at this time to achieve locking, thereby ensuring the stability of the transmission state of the first round roller 3 to the two second round rollers 4; One of the deflection plates 24 rotates, so the two deflection plates 24 can be deflected synchronously but in different directions through the gear set 25. During this process, the column on the deflection plate 24 can slide with the long plate 22 through the strip deep groove on the long plate 22, and the two long plates 22 slide away from each other on the cross bar 21. Correspondingly, the two second round rollers 4 move away from each other and are respectively located on both sides of the cross plate 2, thereby increasing the protection range of the final radiation protection curtain. After the two second round rollers 4 move to the end of the stroke and are locked, the moving gear 30 reaches a position meshing with the static gear 31. During the rising and rotation of the first round roller 3, its rotating shaft can drive the static gear 31 to rotate through the fourth transmission belt 32. The static gear 31 rotates with the second round roller 4 through the moving gear 30, so that the second round roller 4 and the first round roller 3 synchronously release the radiation protection curtain.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A radiation shielding and protection device for medical diagnosis and treatment, comprising a base (1) and a horizontal plate (2) movably arranged on the base (1) and parallel to the base (1), characterized in that: Also includes: A first round roller (3) is rotatably mounted on one side of the horizontal plate (2) and has a radiation protection curtain wound thereon; the rotation axis of the first round roller (3) is connected to a lifting mechanism mounted on the base (1) via a transmission mechanism; the lifting mechanism is used to drive the horizontal plate (2) to rise and fall, and drives the first round roller (3) to rotate via the transmission mechanism, so that the first round roller (3) performs a release or reeling action on the radiation protection curtain; Two long strips (22) are movably provided on the horizontal plate (2) and are connected to a deflection drive mechanism installed on the horizontal plate (2). A second round roller (4) is rotatably installed on each of the two long strips (22), and radiation protection curtains are also wound around the two second round rollers (4). The deflection drive mechanism is used to drive the two second round rollers (4) to perform a stretching action, and is connected to the rotating shaft of the first round roller (3) through a gearing mechanism, so that the protection range of the radiation protection curtain changes.

2. A radiation shielding protection device for medical diagnosis and treatment according to claim 1, characterized in that: Two cross bars (21) are fixedly mounted on the cross plate (2), and the two long strips (22) are slidably arranged on the cross bars (21). The deflection drive mechanism comprises two deflection plates (24) mounted on the cross plate (2), the deflection plates (24) and the long strips (22) are connected via a sliding matching structure, and a rotation shaft of one of the deflection plates (24) is connected to a locking assembly, and the rotation shafts of the two deflection plates (24) are connected via a gear set (25).

3. A radiation shielding protection device for medical diagnosis and treatment according to claim 2, characterized in that: The sliding matching structure comprises a strip-shaped deep groove opened along the length direction of the long strip plate (22) and a column fixedly mounted on the deflection plate (24), wherein the column extends into the strip-shaped deep groove and is slidably connected to the long strip plate (22).

4. A radiation shielding protection device for medical diagnosis and treatment according to claim 3, characterized in that: A deep hole (26) is formed at one end of the rotation axis of one of the deflection plates (24) away from the horizontal plate (2), and the locking assembly comprises a telescopic rod (27) slidably arranged in the deep hole (26) via a limiting structure, and a columnar spring (28) arranged in the deep hole (26); One end of the cylindrical spring (28) is connected to the bottom wall of the deep hole (26), and the other end is connected to the telescopic rod (27). A locking rod (29) is fixed to the outer wall of the telescopic rod (27), and two locking holes adapted to the locking rod (29) are provided on the horizontal plate (2).

5. A radiation shielding and protection device for medical diagnosis and treatment according to claim 4, characterized in that: The limiting structure comprises a plurality of strip-shaped protrusions fixedly arranged on the inner wall of the deep hole (26) at equal intervals along the circumference, and a plurality of strip-shaped grooves opened on the outer wall of the telescopic rod (27) at equal intervals along the circumference, the strip-shaped grooves being slidably matched with the strip-shaped protrusions, and both being parallel to the rotation axis of the deflection plate (24) and the central axis of the telescopic rod (27).

6. A radiation shielding and protection device for medical diagnosis and treatment according to claim 4, characterized in that: The toothing mechanism comprises a stationary gear (31) rotatably mounted on one side of the transverse plate (2) and a movable gear (30) fixedly mounted on the rotating shaft of the second round roller (4), and a fourth transmission belt (32) is connected between the rotating shafts of the stationary gear (31) and the first round roller (3).

7. A radiation shielding and protection device for medical diagnosis and treatment according to claim 1, characterized in that: A transmission shaft (13) connected to the lifting mechanism is rotatably mounted on the base (1), the transmission mechanism comprising a first connecting plate (14) and a second connecting plate (15) whose head ends are rotatably connected via a shaft (18), the tail end of the first connecting plate (14) is rotatably connected to the transmission shaft (13), and the tail end of the second connecting plate (15) is rotatably connected to the rotating shaft of the first round roller (3); The shaft (18) is connected to the transmission shaft (13) via a first transmission belt (16), and is also connected to the rotating shaft of the first round roller (3) via a second transmission belt (17).

8. A radiation shielding and protection device for medical diagnosis and treatment according to claim 7, characterized in that: The lifting mechanism comprises a threaded assembly mounted on the base (1) and two sets of connection structures connecting the threaded assembly and the transverse plate (2), the threaded assembly comprising a bidirectional screw rod (6) rotatably mounted on the base (1), a guide rod (7) fixed on the base (1), and two transverse plates (5) symmetrically arranged on the base (1); The bidirectional screw rod (6) is connected to the transmission shaft (13) via a third transmission belt (23), and the transverse plate (5) is threadedly connected to the bidirectional screw rod (6) and slidably connected to the guide rod (7).

9. A radiation shielding and protection device for medical diagnosis and treatment according to claim 8, characterized in that: The connection structure comprises a first push-pull rod (9) and a second push-pull rod (10) rotatably connected at their midpoints by an axle pin, and a first connecting rod (11) and a second connecting rod (12) whose head ends are hinged to the transverse plate (2), one end of each of the first push-pull rod (9) and the second push-pull rod (10) being hinged to the two transverse plates (5) respectively, and the other end being hinged to one end of each of the first connecting rod (11) and the second connecting rod (12) away from the transverse plate (2); A boss (19) is fixed at the midpoint of the first connecting rod (11), a strip-shaped through slot (20) is provided on the second connecting rod (12), and the boss (19) passes through the strip-shaped through slot (20) and is slidably connected to the second connecting rod (12).

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