Position adjusting device for X-ray machine

Abstract

The embodiment of the utility model provides an X-ray machine position adjusting device which comprises an X-ray machine, a first vertical back plate, a radioactive source support and a fine adjusting device. The right side surface of the first vertical back plate is in surface-to-surface contact with the left side surface of the radioactive source bracket, and the radioactive source bracket is rotationally connected with the first vertical back plate; the fine adjustment device comprises a fine adjustment interval limiting block and a fine adjustment block; the fine adjustment interval limiting block is arranged at the upper end of the first vertical back plate, the fine adjustment block is arranged on the radioactive source support and matched with the fine adjustment interval limiting block, and the relative rotation angle between the first vertical back plate and the radioactive source support is limited; the X-ray machine is vertically mounted on the radioactive source bracket and is rotationally connected with the radioactive source bracket; a rotation driving device is arranged on the radioactive source support and drives the X-ray machine to rotate around the vertical axis of the X-ray machine.

Description

Technical Field

[0001] The utility model relates to the field of radiation equipment, in particular to a position adjustment device for an X-ray machine. Background Art

[0002] The X-rays emitted from the X-ray tube are distributed in a conical shape in space, and the radiation field intensities at different positions in space are not uniform. In order to obtain a standard radiation field for calibrating a dosimeter, it is necessary to determine the radiation intensity at a specific point in the radiation field space and evaluate the stability and repeatability of the radiation intensity at this point. Therefore, it is necessary to position the radiation field space before measurement, aiming to position the focus of the X-ray machine at the spatial point of actual application so that its beam is perpendicular to the application plane in space. Therefore, it is necessary to adjust the vertical, horizontal and other position parameters of the X-ray machine to facilitate the precise adjustment and positioning of the X-ray machine beam, thus determining the importance of the position adjustment mechanism.

[0003] In the process of implementing the present utility model, the applicant found that there are at least the following problems in the prior art:

[0004] The position adjustment of the existing X-ray machine is inconvenient and the accuracy is insufficient. Content of the Utility Model

[0005] An embodiment of the present utility model provides a position adjustment device for an X-ray machine to solve the problems that the position adjustment of the existing X-ray machine is inconvenient and the accuracy is insufficient.

[0006] To achieve the above object, on the one hand, an embodiment of the present utility model provides a position adjustment device for an X-ray machine, including: an X-ray machine, a first vertical back plate, a radiation source bracket, and a fine adjustment device;

[0007] The right side surface of the first vertical back plate is in surface contact with the left side surface of the radiation source bracket, and the radiation source bracket is rotatably connected to the first vertical back plate;

[0008] The fine adjustment device includes a fine adjustment interval limit block and a fine adjustment block; the fine adjustment interval limit block is arranged at the upper end of the first vertical back plate, and the fine adjustment block is arranged on the radiation source bracket and cooperates with the fine adjustment interval limit block to limit the relative rotation angle between the first vertical back plate and the radiation source bracket;

[0009] The X-ray machine is vertically installed on the radiation source bracket and is rotatably connected to the radiation source bracket;

[0010] The radiation source bracket includes a rotation driving device, and the rotation driving device drives the X-ray machine to rotate around the vertical axis of the X-ray machine.

[0011] The above technical solution has the following beneficial effects: By adding a fine-tuning device and a rotational drive device to the radiation source bracket of the X-ray machine, fine-tuning of the position of the X-ray machine around the horizontal axis and the axis of the X-ray machine itself is achieved. During use, it is easier to adjust the position of the radiation source. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 is a three-dimensional assembly drawing of an X-ray machine position adjustment device according to one of the embodiments of the present invention;

[0014] Figure 2 is a three-dimensional assembly drawing of a radiation source bracket according to one of the embodiments of the present invention;

[0015] Figure 3 is a three-dimensional drawing of an X-ray machine according to one of the embodiments of the present invention;

[0016] Figure 4 is a three-dimensional exploded view of a radiation source bracket according to one of the embodiments of the present invention;

[0017] Figure 5 is a three-dimensional drawing of a second vertical backboard according to one of the embodiments of the present invention.

[0018] The reference numerals are shown as follows: 1. X-ray machine; 2. first vertical back plate; 3. radiation source bracket; 4. fine adjustment device; 41. fine adjustment interval limit block; 42. fine adjustment block; 31. rotation driving device; 11. first circular ring protrusion; 12. second circular ring protrusion; 13. ray outlet; 33. second vertical back plate; 34. first horizontal support arm; 411. vertical groove; 412. fine adjustment threaded hole; 21. first through hole; 22. first circular groove; 331. second through hole; 332. second circular groove; 35. connecting bearing; 351. bearing inner ring; 352. bearing outer ring; 311. rotation driving device base; 312. worm; 313. arc-shaped turbine (313); 314. first U-shaped upper housing; 315. right housing; 316. first washer; 317. worm bin; 318. first circular hole; 319. first annular step; 320. first notch 321. arc-shaped downward step; 322. second circular hole; 323. second annular step; 324. second notch; 325. circular arc-shaped notch; 341. first support arm base; 342. second U-shaped upper housing; 343. third circular hole; 344. third annular step; 345. third notch; 346. fourth circular hole; 347. fourth annular step 348. fourth notch; 349. second washer. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As Figure 1 shown, the embodiment of the present invention provides an X-ray machine position adjustment device, including: X-ray machine 1, first vertical back plate 2, radiation source bracket 3, and fine adjustment device 4;

[0021] The right side surface of the first vertical back plate 2 is in surface contact with the left side surface of the radiation source bracket 3, and the radiation source bracket 3 is rotatably connected to the first vertical back plate 2;

[0022] The fine adjustment device 4 includes a fine adjustment interval limit block 41 and a fine adjustment block 42; the fine adjustment interval limit block 41 is arranged at the upper end of the first vertical back plate 2, and the fine adjustment block 42 is arranged on the radiation source bracket 3 and cooperates with the fine adjustment interval limit block 41 to limit the relative rotation angle between the first vertical back plate 2 and the radiation source bracket 3;

[0023] The X-ray machine 1 is vertically installed on the radiation source bracket 3 and is rotatably connected to the radiation source bracket 3;

[0024] The radiation source bracket 3 includes a rotation driving device 31, and the rotation driving device 31 drives the X-ray machine 1 to rotate around the vertical axis of the X-ray machine 1.

[0025] In some embodiments, the X-ray machine 1 is cylindrical, and the ray outlet 13 is located on the side surface of the cylinder. The first vertical back plate is used to fix the X-ray machine position adjusting device on the equipment that needs to use the X-ray machine position adjusting device. The right side surface of the first vertical back plate can rotate relative to the left side surface of the radiation source bracket. The rotation amplitude is controlled by a fine adjustment device. By adjusting the relative position of the fine adjustment block in the fine adjustment interval limit block, the rotation angle of the radiation source bracket relative to the first vertical back plate can be adjusted. The X-ray machine is installed on the radiation source bracket and will rotate with the radiation source bracket, so as to realize the adjustment of the rotation angle of the X-ray machine around the horizontal axis through the fine adjustment device; a rotation driving device is provided on the radiation source bracket to drive the X-ray machine to rotate around its own longitudinal axis. The radiation source bracket 3 and the first vertical back plate 2 are rotatably connected. For example, a rotating shaft can be provided or connected through a bearing. The axis of the rotating shaft or bearing is the rotation axis of the radiation source bracket 3 relative to the first vertical back plate 2; when the orientation of the ray outlet 13 of the X-ray machine (i.e., the ray direction) is the same as the orientation of this rotation axis, in some embodiments, the axis of the ray outlet 13 of the X-ray machine can coincide with this rotation axis, or in some other embodiments, they may not coincide. Preferably, when the orientation of the ray outlet 13 of the X-ray machine (i.e., the ray direction) is the same as the orientation of this rotation axis, the axis of the ray outlet 13 of the X-ray machine can coincide with this rotation axis. The fine adjustment block 42 and the rotation driving device 31 cooperate with each other to control the position and attitude of the X-ray machine 1 to rotate along this rotation axis (equivalent to the horizontal axis) and the own axis of the X-ray machine 1. Furthermore, more complex and precise control of the position of the ray outlet 13 can be achieved.

[0026] The embodiments of the present utility model have the following technical effects: By adding a fine adjustment device and a rotation driving device on the radiation source bracket of the X-ray machine, the rotation fine adjustment of the position of the X-ray machine around the horizontal axis and the own axis of the X-ray machine is realized, and it is easier to adjust the position of the radiation source during use.

[0027] Further, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a first circular ring protrusion 11 coaxial with the X-ray machine 1 is provided on the outer surface of the upper part of the X-ray machine 1; a second circular ring protrusion 12 coaxial with the X-ray machine 1 is provided on the outer surface of the lower part of the X-ray machine 1;

[0028] The radiation source bracket 3 further includes: a second vertical back plate 33 and a first horizontal support arm 34;

[0029] The rotation driving device 31 is vertically connected to the upper part of the second vertical back plate 33;

[0030] The first horizontal support arm 34 is vertically connected to the lower part of the second vertical back plate 33;

[0031] The rotation driving device 31 and the first horizontal support arm 34 are parallel to each other;

[0032] The left side surface of the second vertical back plate 33 is in sliding contact with the right side surface of the first vertical back plate 2; the horizontal center of the second vertical back plate 33 is rotationally connected to the horizontal center of the first vertical back plate 2;

[0033] The first circular protrusion 11 is sleeved in the rotation driving device 31;

[0034] The second circular protrusion 12 is sleeved in the first horizontal support arm 34.

[0035] In some embodiments, the rotation driving device and the first horizontal support arm together support and limit the X-ray machine. The rotation driving device mainly plays a role in rotation driving and also has a certain supporting and limiting effect. The first horizontal support arm has the main supporting and limiting effect. The radiation source bracket realizes the rotational sliding of the radiation source bracket relative to the first vertical back plate through the surface cooperation of the second vertical back plate and the first vertical back plate.

[0036] Further, as Figure 1 shown, a vertical groove 411 is provided on the right side surface of the fine-tuning interval limiting block 41. The fine-tuning block 42 extends into the vertical groove 411 from bottom to top. The width of the vertical groove 411 is greater than the width of the fine-tuning block 42. Fine-tuning threaded holes 412 are respectively provided on the two side walls of the vertical groove 411. Fine-tuning screws are respectively provided in the two fine-tuning threaded holes. The two fine-tuning screws respectively abut against the two side surfaces of the fine-tuning block 42.

[0037] In some embodiments, the rotation angle of the radiation source bracket around the horizontal axis is finely adjusted by the fine-tuning screws, which is simple and convenient.

[0038] Further, as Figure 4 and Figure 5 shown, a first through hole 21 is provided at the center of the first vertical back plate 2. On the right side surface of the first vertical back plate 2, a first circular groove 22 is coaxially provided with the first through hole 21. The radius of the first circular groove 22 is greater than the radius of the first through hole 21;

[0039] A second through hole 331 coaxial with the first through hole 21 is provided at the center of the second vertical back plate 33. The radius of the second through hole 331 is equal to the radius of the first through hole 21. A second circular groove 332 coaxial with the second through hole 331 is provided on the left side surface of the second vertical back plate 33. The radius of the second circular groove 332 is equal to the radius of the first circular groove 22.

[0040] The radiation source bracket 3 further includes: a connecting bearing 35. The connecting bearing 35 includes a bearing inner ring 351 and a bearing outer ring 352. The inner diameter of the bearing inner ring 351 is equal to the radius of the first through hole 21, and the outer diameter of the bearing outer ring 352 is equal to the radius of the first circular groove 22.

[0041] The connecting bearing 35 is coaxial with the first through hole 21, and the thickness of the connecting bearing 35 is greater than or equal to the sum of the depth of the first circular groove 22 and the depth of the second circular groove 332.

[0042] The bearing inner ring 351 is connected to the first vertical back plate 2, and the bearing outer ring 352 is connected to the second vertical back plate 33.

[0043] In some embodiments, by embedding the bearing in the first vertical back plate and the second vertical back plate, the first vertical back plate and the radiation source bracket are rotationally connected, saving installation space while ensuring smooth rotation.

[0044] Further, as Figure 4 shown, the rotation driving device 31 includes: a rotation driving device base 311, a worm 312, an arc-shaped turbine 313 engaged with the worm, a first U-shaped upper housing 314, a right housing 315, and a first washer 316.

[0045] A worm bin 317 for accommodating the worm 312 is provided at the left part of the rotation driving device base 311. The right part of the rotation driving device base 311 is in a downward step shape relative to the worm bin 317. A first circular hole 318 is provided at the right part of the rotation driving device base 311. The radius of the first circular hole 318 is greater than the radius of the column of the X-ray machine 1 and less than the outer diameter of the first circular ring protrusion 11. A first annular step 319 is provided on the top surface of the right part of the rotation driving device base 311 and is downward stepped around the first circular hole. The outer diameter of the first annular step 319 is greater than or equal to the outer diameter of the first circular ring protrusion 11. The first annular step 319 is coaxial with the first circular hole 318. A first notch 320 is provided on the right side of the first circular hole 318. The width of the first notch 320 is less than or equal to the column diameter of the X-ray machine 1.

[0046] The right side of the worm bin 317 is open, and the worm 312 and the arc-shaped turbine 313 are in driving cooperation at the opening on the right side of the worm bin 317;

[0047] At the left end of the first U-shaped upper housing 314, there is an arc-shaped downward step 321 with the same shape as the arc-shaped turbine 313. The arc-shaped turbine 313 is installed on the arc-shaped downward step 321. At the right part of the first U-shaped upper housing 314, there is a second circular hole 322. The radius of the second circular hole 322 is greater than the radius of the cylinder of the X-ray machine 1 and less than the outer diameter of the first ring protrusion 11. On the bottom surface of the first U-shaped upper housing 314 and surrounding the second circular hole 322, there is an upward second annular step 323. The outer diameter of the second annular step 323 is greater than or equal to the outer diameter of the first ring protrusion 11. The second annular step 323 and the second circular hole 322 are coaxial. On the right side of the second circular hole 322, there is a second notch 324. The width of the second notch 324 is equal to the width of the first notch 320; The arc-shaped turbine 313, the arc-shaped downward step 321, and the second circular hole 322 are concentric;

[0048] The first circular hole 318 and the second circular hole 322 are coaxial; The distance from the step surface of the first annular step 319 to the step surface of the second annular step 323 is greater than or equal to the thickness of the first ring protrusion 11;

[0049] At the left part of the right housing 315, there is an arc-shaped notch 325. The right housing 315 is assembled at the second notch 324. The arc-shaped notch 325 and the second circular hole 322 form a complete circular hole;

[0050] The first circular protrusion 11 of the X-ray machine 1 is sleeved in the housing formed by the right part of the first U-shaped upper housing 314, the right housing 315, and the rotating drive device base 311. The first washer 316 is between the first circular protrusion 11 and the first annular step 319.

[0051] In some embodiments, the worm is installed in the worm bin, and the worm drives the arc-shaped turbine to rotate, and the rotation angle does not exceed the arc range of the arc-shaped turbine. A detachable fixed connection is adopted between the arc-shaped turbine and the arc-shaped lower step at the left end of the first U-shaped upper housing, for example, by connecting with bolts or screws. When the worm drives the arc-shaped turbine to rotate, the arc-shaped turbine will drive the first U-shaped upper housing to rotate synchronously. The first circular protrusion of the X-ray machine is sleeved in the housing formed by the right part of the first U-shaped upper housing, the right housing and the base of the rotation drive device. The first washer is placed between the first circular protrusion and the first annular step. The presence of the first washer causes the X-ray machine to be clamped. When the first U-shaped upper housing rotates, it will also drive the X-ray machine to rotate synchronously. When installing the X-ray machine, first remove the arc-shaped turbine together with the first U-shaped upper housing and the right housing, place the first circular protrusion of the X-ray machine on the first annular step of the base of the rotation drive device, then cover the first circular protrusion with the arc-shaped turbine together with the first U-shaped upper housing, and finally install the right housing from the right side; a detachable fixed connection is adopted between the right housing and the first U-shaped upper housing, for example, by connecting with bolts or screws; the whole formed by the right housing and the first U-shaped upper housing is in sliding contact with the right part of the base of the rotation drive device. The setting of the first notch and the second notch can facilitate the installation of the X-ray machine.

[0052] The embodiments of the present invention have the following technical effects: The rotation drive device is integrated on the radiation source bracket, mainly playing a rotation role and at the same time playing a certain role in supporting and limiting. The rotation of the X-ray machine around its own longitudinal axis is realized.

[0053] Further, as Figure 4 shown, the first support arm 34 includes: a first support arm base 341 and a second U-shaped upper housing 342;

[0054] A third circular hole 343 is provided in the right part of the first support arm base 341. The radius of the third circular hole 343 is greater than the radius of the column of the X-ray machine 1 and less than the outer diameter of the second ring protrusion 12. A third annular step 344 is provided on the top surface of the right part of the first support arm base 341 and below the periphery of the third circular hole 343. The outer diameter of the third annular step 344 is greater than or equal to the outer diameter of the second ring protrusion 12. The third annular step 344 and the third circular hole 343 are coaxial. A third notch 345 is provided on the right side of the third circular hole 343. The width of the third notch 345 is less than or equal to the column diameter of the X-ray machine 1;

[0055] The second U-shaped upper housing 342 is provided with a fourth circular hole 346. The radius of the fourth circular hole 346 is greater than the radius of the cylinder of the X-ray machine 1 and less than the outer diameter of the second circular ring protrusion 12. On the bottom surface of the second U-shaped upper housing 342 and surrounding the fourth circular hole 346, a fourth annular step 347 is provided. The outer diameter of the fourth annular step 347 is greater than or equal to the outer diameter of the second circular ring protrusion 12. The fourth annular step 347 and the fourth circular hole 346 are coaxial. A fourth notch 348 is provided on the right side of the fourth circular hole 346. The width of the fourth notch 348 is equal to the width of the third notch 345;

[0056] The first circular hole 318, the second circular hole, the third circular hole 343 and the fourth circular hole 346 are coaxial; the distance from the step surface of the third annular step 344 to the step surface of the fourth annular step 347 is greater than or equal to the thickness of the second circular ring protrusion 12;

[0057] The second circular protrusion 12 of the X-ray machine 1 is sleeved in the housing formed by the second U-shaped upper housing 342 and the right part of the first support arm base 341;

[0058] A second washer 349 is provided between the second circular ring protrusion 12 and the third annular step 344.

[0059] In some embodiments, the rotation driving device cannot completely limit all degrees of freedom of the X-ray machine. In order to stably support the radiation source, the X-ray machine is further supported and limited by the first support arm. The connection between the second U-shaped upper housing and the first support arm base is a detachable fixed connection, such as by bolts and screws. Preferably, a second washer is provided between the second circular ring protrusion and the third annular step for clamping the X-ray machine.

[0060] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of the present disclosure. The appended method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy.

[0061] In the above detailed description, various features are combined together in a single embodiment to simplify the present disclosure. This method of disclosure should not be construed as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly recited in each claim. On the contrary, as reflected by the appended claims, the present utility model is in a state with fewer features than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby clearly incorporated into the detailed description, where each claim stands alone as a separate preferred embodiment of the present utility model.

[0062] In order to enable any person skilled in the art to implement or use the present utility model, the disclosed embodiments have been described above. For those skilled in the art, various modification methods of these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and protection scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0063] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but those of ordinary skill in the art should recognize that each embodiment can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the protection scope of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the coverage of this term is similar to the term "including". In addition, any term "or" used in the specification of the claims is to mean "non-exclusive or".

[0064] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An X-ray machine position adjustment device, characterized in that: include: X-ray machine (1), a first vertical back plate (2), a radiation source bracket (3), and a fine-tuning device (4); The right side surface of the first vertical back plate (2) is in surface contact with the left side surface of the radiation source bracket (3), and the radiation source bracket (3) and the first vertical back plate (2) are rotatably connected; The fine-tuning device (4) comprises a fine-tuning interval limit block (41) and a fine-tuning block (42); the fine-tuning interval limit block (41) is arranged at the upper end of the first vertical back plate (2), and the fine-tuning block (42) is arranged on the radiation source bracket (3) and cooperates with the fine-tuning interval limit block (41) to limit the relative rotation angle between the first vertical back plate (2) and the radiation source bracket (3); The X-ray machine (1) is vertically mounted on the radiation source support (3) and is rotatably connected to the radiation source support (3); The radiation source support (3) comprises a rotation drive device (31), and the rotation drive device (31) drives the X-ray machine (1) to rotate around the vertical axis of the X-ray machine (1).

2. The X-ray machine position adjustment device according to claim 1, characterized in that: The upper outer surface of the X-ray machine (1) is provided with a first annular protrusion (11) coaxial with the X-ray machine (1); the lower outer surface of the X-ray machine (1) is provided with a second annular protrusion (12) coaxial with the X-ray machine (1); The radiation source support (3) further comprises: a second vertical back plate (33) and a first horizontal support arm (34); The rotation driving device (31) is vertically connected to the upper part of the second vertical back plate (33); The first horizontal support arm (34) is vertically connected to the lower part of the second vertical back plate (33); The rotation driving device (31) and the first horizontal supporting arm (34) are parallel to each other; The left side surface of the second vertical back plate (33) is in sliding contact with the right side surface of the first vertical back plate (2); the horizontal center of the second vertical back plate (33) is rotationally connected to the horizontal center of the first vertical back plate (2); The first annular protrusion (11) is sleeved in the rotation driving device (31); The second annular protrusion (12) is sleeved in the first horizontal supporting arm (34).

3. The X-ray machine position adjustment device according to claim 1, characterized in that: The side surface of the fine-tuning interval limit block (41) is provided with a vertical groove (411), the fine-tuning block (42) extends upward from the bottom into the vertical groove (411), the width of the vertical groove (411) is greater than the width of the fine-tuning block (42), and fine-tuning threaded holes (412) are respectively provided on the two side walls of the vertical groove (411), and fine-tuning screws are respectively provided in the two fine-tuning threaded holes (412), and the two fine-tuning screws are respectively pressed against the two side surfaces of the fine-tuning block (42).

4. The X-ray machine position adjustment device according to claim 2, characterized in that: A first through hole (21) is provided at the center of the first vertical back plate (2), and a first circular groove (22) is provided on the right side surface of the first vertical back plate (2) coaxially with the first through hole (21), wherein the radius of the first circular groove (22) is greater than the radius of the first through hole (21); A second through hole (331) coaxial with the first through hole (21) is provided at the center of the second vertical back plate (33); the radius of the second through hole (331) is equal to the radius of the first through hole (21); a second circular groove (332) coaxial with the second through hole (331) is provided on the left side of the second vertical back plate (33); the radius of the second circular groove (332) is equal to the radius of the first circular groove (22); The radiation source support (3) further comprises: a connecting bearing (35); the connecting bearing (35) comprises a bearing inner ring (351) and a bearing outer ring (352); the inner diameter of the bearing inner ring (351) is equal to the radius of the first through hole (21), and the outer diameter of the bearing outer ring (352) is equal to the radius of the first circular groove (22); The connecting bearing (35) is coaxial with the first through hole (21), and the thickness of the connecting bearing (35) is greater than or equal to the depth of the first circular groove (22) plus the depth of the second circular groove (332); The bearing inner ring (351) is connected to the first vertical back plate (2), and the bearing outer ring (352) is connected to the second vertical back plate (33).

5. The X-ray machine position adjustment device according to claim 2, characterized in that: The rotary drive device (31) comprises: a rotary drive device base (311), a worm (312), an arc-shaped turbine (313) matched with the worm, a first U-shaped upper housing (314), a right housing (315) and a first gasket (316); A worm gear housing (317) for accommodating the worm gear (312) is provided at the left part of the rotation driving device base (311); the right part of the rotation driving device base (311) is in a stepped shape relative to the worm gear housing (317); a first circular hole (318) is provided at the right part of the rotation driving device base (311); the radius of the first circular hole (318) is greater than the column radius of the X-ray machine (1) and smaller than the outer diameter of the first circular protrusion (11); a first annular step (319) is provided on the top surface of the right part of the rotation driving device base (311) and is located at the periphery of the first circular hole; the outer diameter of the first annular step (319) is greater than or equal to the outer diameter of the first circular protrusion (11); the first annular step (319) is coaxial with the first circular hole (318); a first notch (320) is provided on the right side of the first circular hole (318); the width of the first notch (320) is less than or equal to the column diameter of the X-ray machine (1); The right side of the worm gear bin (317) is open, and the worm (312) and the arc-shaped turbine (313) are drivingly matched at the opening of the right side of the worm gear bin (317); The left end of the first U-shaped upper shell (314) is provided with an arc-shaped step-down step (321) of the same shape as the arc-shaped turbine (313), and the arc-shaped turbine (313) is mounted on the arc-shaped step-down step (321). The right part of the first U-shaped upper shell (314) is provided with a second circular hole (322), the radius of which is greater than the cylindrical radius of the X-ray machine (1) and smaller than the outer diameter of the first circular protrusion (11). On the bottom surface of the first U-shaped upper shell (314), the second circular hole (322) is located A second annular step (323) is provided on the outer periphery of the arc-shaped turbine (313), the outer diameter of the second annular step (323) is greater than or equal to the outer diameter of the first annular protrusion (11), the second annular step (323) is coaxial with the second circular hole (322), a second notch (324) is provided on the right side of the second circular hole (322), the width of the second notch (324) is equal to the width of the first notch (320); the arc-shaped turbine (313), the arc-shaped downward step (321) and the second circular hole (322) are coaxial; The first circular hole (318) and the second circular hole (322) are coaxial; the distance from the step surface of the first annular step (319) to the step surface of the second annular step (323) is greater than or equal to the thickness of the first annular protrusion (11); The left portion of the right shell (315) is provided with an arc-shaped notch (325), the right shell (315) is assembled at the second notch (324), and the arc-shaped notch (325) and the second circular hole (322) form a complete circular hole; The first annular protrusion (11) of the X-ray machine (1) is sleeved in a housing formed by the first U-shaped upper housing (314), the right housing (315) and the right part of the base (311) of the rotating drive device, and the first gasket (316) is between the first annular protrusion (11) and the first annular step (319).

6. The X-ray machine position adjustment device according to claim 5, characterized in that: The first horizontal support arm (34) comprises: a first support arm base (341) and a second U-shaped upper shell (342); A third circular hole (343) is provided on the right part of the first support arm base (341), the radius of the third circular hole (343) is greater than the cylindrical radius of the X-ray machine (1) and smaller than the outer diameter of the second circular protrusion (12), a third annular step (344) is provided on the top surface of the right part of the first support arm base (341) and is located at the periphery of the third circular hole (343), the outer diameter of the third annular step (344) is greater than or equal to the outer diameter of the second circular protrusion (12), the third annular step (344) is coaxial with the third circular hole (343), a third notch (345) is provided on the right side of the third circular hole (343), and the width of the third notch (345) is less than or equal to the cylindrical diameter of the X-ray machine (1); The second U-shaped upper shell (342) is provided with a fourth circular hole (346), the radius of which is greater than the cylindrical radius of the X-ray machine (1) and smaller than the outer diameter of the second circular protrusion (12); a fourth annular step (347) is provided on the bottom surface of the second U-shaped upper shell (342) and is located on the periphery of the fourth circular hole (346); the outer diameter of the fourth annular step (347) is greater than or equal to the outer diameter of the second circular protrusion (12); the fourth annular step (347) is coaxial with the fourth circular hole (346); a fourth notch (348) is provided on the right side of the fourth circular hole (346); the width of the fourth notch (348) is equal to the width of the third notch (345); The first circular hole (318), the second circular hole, the third circular hole (343) and the fourth circular hole (346) are coaxial; the distance from the step surface of the third annular step (344) to the step surface of the fourth annular step (347) is greater than or equal to the thickness of the second annular protrusion (12); The second annular protrusion (12) of the X-ray machine (1) is sleeved in a housing formed by the second U-shaped upper housing (342) and the right part of the first support arm base (341); A second gasket (349) is arranged between the second annular protrusion (12) and the third annular step (344).

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