Rotary limiting structure

Abstract

The embodiment of the utility model provides a rotation limiting structure. The rotation limiting structure comprises a connecting assembly, a rotating assembly and a driving device. The connecting assembly comprises a connecting block and a first limiting block, two adjacent mounting positions are arranged on the surface of the connecting block, and the first limiting block is detachably connected with the mounting positions; the driving device comprises a driving body and a driving end, and the connecting block is fixedly connected with the driving body; the rotating assembly is fixedly connected with the driving end and rotates along with the driving end; a second limiting block is arranged on the surface of the rotating assembly; and when the rotary limiting structure is used for limiting, the second limiting block is in contact with the first limiting block and is limited by the first limiting block. The rotation angle of the radiation source assembly is limited through the first limiting block, and the technical effect of preventing the rotation angle of the rotation structure from being too large is achieved; by changing the position of the first limiting block, the technical effect that the rotation angle of the rotation structure is prevented from being too large during scanning in different directions is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical detection equipment, in particular to a rotation limiting structure. BACKGROUND

[0002] When CT, gastrointestinal machine and other medical machines are used to carry out tomographic scanning, the patient's lesion area needs to be scanned in different directions and different angles, and finally a three-dimensional image of the lesion area is synthesized.

[0003] A conventional tomographic scanning machine generally includes a radiation source assembly and a flat panel detector. The radiation source assembly is arranged above the patient, and the flat panel detector is arranged below the patient. The radiation source assembly emits multiple directions and multiple angles of rays to the patient's lesion area. The flat panel detector receives the remaining intensity of the rays after passing through the lesion area. Finally, the initial image of the lesion area is established according to the remaining intensity data of the rays. Since it is necessary to control the radiation source assembly to emit rays in different directions and different angles, the general radiation source assembly needs to be provided with a rotating structure to control its rotation. However, when the lesion is scanned in different directions, the rotating structure still has the problem of too large rotation angle. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application is proposed to provide a rotation limiting structure which overcomes the above problems or at least partially solves the above problems.

[0005] The present application discloses a rotation limiting structure, which comprises a connecting assembly, a rotating assembly and a driving device.

[0006] The connecting assembly comprises a connecting block and a first limiting block. The surface of the connecting block is provided with two adjacent mounting positions. The first limiting block is detachably connected with the mounting positions.

[0007] The driving device comprises a driving body and a driving end. The connecting block is fixedly connected with the driving body. The rotating assembly is fixedly connected with the driving end and rotates with the driving end.

[0008] The surface of the rotating assembly is provided with a second limiting block.

[0009] When the rotation limiting structure is limited, the second limiting block is in contact with the first limiting block and is limited by the first limiting block.

[0010] Further, the mounting positions comprise a first mounting position and a second mounting position. The first mounting position is arranged to the right of the second mounting position.

[0011] When the radiation source assembly is arranged to the left for scanning, the first limiting block is arranged in the first mounting position.

[0012] The first limiting block is arranged at the second mounting position when the radiation source assembly is right-positioned scanning.

[0013] Further, the adapter block is circular with a through hole in the middle, and the adapter block is sleeved on the driving end; the mounting position is arranged on the side surface of the adapter block.

[0014] Further, the rotating assembly is provided with a fixing position for mounting the radiation source assembly.

[0015] Further, the first limiting block comprises a first fixing block and a first protrusion, the first fixing block is detachably connected with the mounting position, and the first protrusion is fixedly arranged on one side of the first fixing block facing the rotating assembly.

[0016] Further, the second limiting block comprises a second fixing block and a second protrusion, the second fixing block is fixed to the side surface of the adapter assembly, and the second protrusion is fixedly arranged on one side of the second fixing block facing the adapter assembly.

[0017] Further, the mounting position is provided with a plurality of screw holes.

[0018] Further, the first limiting block is provided with a fixing hole corresponding to the position of the screw hole.

[0019] The application specifically includes the following advantages:

[0020] In the embodiment of the application, compared with the problem of excessively large rotation angle in the prior art, the application provides a solution for conveniently limiting the rotation angle during scanning in different directions, specifically: the rotation limiting structure comprises an adapter assembly, a rotating assembly and a driving device; the adapter assembly comprises an adapter block and a first limiting block, the surface of the adapter block is provided with two adjacent mounting positions, and the first limiting block is detachably connected with the mounting position; the driving device comprises a driving body and a driving end, the adapter block is fixedly connected with the driving body; the rotating assembly is fixedly connected with the driving end and rotates with the driving end; the surface of the rotating assembly is provided with a second limiting block; when the rotation limiting structure is limited, the second limiting block touches the first limiting block and is limited by the first limiting block. By arranging the first limiting block to limit the rotation angle of the radiation source assembly, the technical effect of avoiding excessively large rotation angle of the rotating structure is achieved; by replacing the position of the first limiting block, the technical effect of avoiding excessively large rotation angle of the rotating structure during scanning in different directions is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the present application, the drawings required to be used in the description of the present application will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a schematic diagram of the overall structure of a rotation limiting structure of the present application;

[0023] Figure 2 is a schematic diagram of the overall structure of a rotation limiting structure of the present application.

[0024] The reference signs are as follows:

[0025] 11, adapter assembly; 111, right-mounted mounting position; 112, left-mounted mounting position; 12, first limiting block; 21, rotating assembly; 22, second limiting block; 30, driving device. DETAILED DESCRIPTION

[0026] In order to make the purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments. Obviously, the described embodiments are some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] The inventor found through analysis of the prior art that if the rotation angle of the radiation source assembly is too large during tomography, the rays cannot irradiate the patient, and the rotating structure can also be damaged. Moreover, the scanning of the patient's lesion can be from head to foot or from foot to head, so the problem of too large rotation angle of the rotating structure occurs in both directions of scanning. The conventional rotating structure is divided into left-mounted rotating structure and right-mounted rotating structure, and such rotating structure is not convenient to disassemble and install, so a rotating limiting structure that can limit the rotation angle when scanning in different directions is needed.

[0028] Referring to Figure 1 and Figure 2 , a rotating limiting structure provided by the present application is shown, which comprises an adapter assembly 11, a rotating assembly 21 and a driving device 30.

[0029] The adapter assembly 11 comprises an adapter block and a first limiting block 12, the surface of the adapter block is provided with two adjacent mounting positions, and the first limiting block 12 is detachably connected with the mounting positions.

[0030] The driving device 30 comprises a driving body and a driving end, the connecting block is fixedly connected with the driving body, and the rotating component 21 is fixedly connected with the driving end and rotates with the driving end;

[0031] The surface of the rotating component 21 is provided with the second limiting block 22.

[0032] When the rotation limiting structure is limited, the second limiting block 22 touches the first limiting block 12 and is limited by the first limiting block 12.

[0033] In the embodiment of the present application, compared with the problem of excessively large rotation angle in the prior art, the present application provides a solution for conveniently limiting the rotation angle in different direction scanning, specifically: the rotation limiting structure comprises a connecting component 11, a rotating component 21 and a driving device 30; the connecting component 11 comprises a connecting block and a first limiting block 12, the surface of the connecting block is provided with two adjacent mounting positions, and the first limiting block 12 is detachably connected with the mounting positions; the driving device 30 comprises a driving body and a driving end, the connecting block is fixedly connected with the driving body, and the rotating component 21 is fixedly connected with the driving end and rotates with the driving end; the surface of the rotating component 21 is provided with the second limiting block 22; when the rotation limiting structure is limited, the second limiting block 22 touches the first limiting block 12 and is limited by the first limiting block 12; by arranging the first limiting block 12 to limit the rotation angle of the radiation source component, the technical effect of avoiding excessively large rotation angle of the rotating structure is achieved; by replacing the position of the first limiting block 12, the technical effect of avoiding excessively large rotation angle of the rotating structure in different direction scanning is achieved.

[0034] In the following, a rotating limiting structure in the present exemplary embodiment will be further described.

[0035] In the embodiment of the present application, the rotating limiting structure comprises a connecting component 11, a rotating component 21 and a driving device 30;

[0036] The connecting component 11 comprises a connecting block and a first limiting block 12, the surface of the connecting block is provided with two adjacent mounting positions, and the first limiting block 12 is detachably connected with the mounting positions;

[0037] The driving device 30 comprises a driving body and a driving end, the connecting block is fixedly connected with the driving body, and the rotating component 21 is fixedly connected with the driving end and rotates with the driving end;

[0038] The surface of the rotating component 21 is provided with the second limiting block 22.

[0039] When the rotation limiting structure is limiting, the second limiting block 22 touches the first limiting block 12 and is limited by the first limiting block 12.

[0040] It should be noted that the radiation source assembly is arranged above the patient, and the rotation limiting structure is also above the patient, and when the rotation limiting structure is installed on the tomography machine, the installation position is away from the patient; taking the case that the patient lies flat as an example, with the rotation of the driving device 30, the radiation source assembly can emit radiation from the patient's feet to the head, that is, left scanning of the radiation source assembly; or emit radiation from the patient's head to the feet, that is, right scanning of the radiation source assembly; by changing the installation position of the first limiting block 12, the maximum rotation angle of the radiation source assembly during left scanning and right scanning can be limited respectively.

[0041] The maximum rotation angles of the radiation source assembly during left scanning and right scanning are different, and the rotation limiting structure of the present application can freely switch between left scanning and right scanning, and only needs to change the installation position of the first limiting block 12, so that the maximum rotation angles during scanning in different directions can be limited, and the structure is simple and the operation is simple, without the need to replace the entire rotation structure.

[0042] In the embodiment of the present application, the installation position includes a first installation position and a second installation position, and the first installation position is arranged to the right of the second installation position.

[0043] When the radiation source assembly is left scanning, the first limiting block 12 is arranged at the first installation position.

[0044] When the radiation source assembly is right scanning, the first limiting block 12 is arranged at the second installation position.

[0045] It should be noted that the installation position of the first limiting block 12 is changed according to different scanning directions.

[0046] In the embodiment of the present application, the adapter block is a circle with a through hole in the middle, and the adapter block is sleeved on the driving end; the installation position is arranged on the side surface of the adapter block.

[0047] It should be noted that the position of the installation position can be changed by replacing the adapter block, so that the rotation limiting assembly of the present application can be applied to various scanning directions.

[0048] In the embodiment of the present application, the rotating assembly 21 is provided with a fixed position for installing the radiation source assembly.

[0049] It should be noted that the radiation source assembly is driven to rotate by the rotating assembly 21, and the rotating assembly 21 is driven to rotate by the driving device 30.

[0050] In the embodiments of the present application, the first limiting block 12 comprises a first fixed block and a first protrusion, the first fixed block is detachably connected with the mounting position, and the first protrusion is fixedly arranged on one side of the first fixed block facing the rotating assembly 21. The second limiting block 22 comprises a second fixed block and a second protrusion, the second fixed block is fixed to the side surface of the connecting assembly 11, and the second protrusion is fixedly arranged on one side of the second fixed block facing the connecting assembly 11.

[0051] It should be noted that the first limiting block 12 and the second limiting block 22 are in a “convex” structure, and the first protrusion and the second protrusion are in contact with each other to achieve the limiting effect.

[0052] In the embodiments of the present application, the mounting position is provided with a plurality of screw holes. The first limiting block 12 is provided with a fixed hole corresponding to the position of the screw hole.

[0053] It should be noted that the first limiting block 12 and the mounting position of the present application can be fixed together by a screw passing through the screw hole, so that the disassembly and installation of the first limiting block 12 are more convenient; similarly, the second limiting block 22 and the rotating assembly 21 can also be provided with a fixed hole, so that the second limiting block 22 can be disassembled and replaced.

[0054] Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0055] Finally, it should be noted that in this document, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations exist in any such actual relationship or order. Moreover, the terms “comprising”, “including” or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed or inherent to such a process, method, article or terminal device. Without more limitations, the element defined by the statement “comprising a” does not exclude the presence of additional identical elements in the process, method, article or terminal device including the element.

[0056] The above describes in detail the rotation limiting structure provided by the application, and the principle and implementation mode of the application are described by using specific examples, and the above example is only used to help understand the method of the application and its core idea; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation on the application.

Claims

1. A rotation limiting structure for limiting a rotation range of a radiation source assembly of a tomography device, characterized in that The rotation limiting structure comprises a connecting assembly, a rotating assembly and a driving device; The connecting assembly comprises a connecting block and a first limiting block, the surface of the connecting block is provided with two adjacent installation positions, and the first limiting block is detachably connected with the installation positions; The driving device comprises a driving body and a driving end, the connecting block is fixedly connected with the driving body, and the rotating assembly is fixedly connected with the driving end and rotates with the driving end; The surface of the rotating assembly is provided with a second limiting block; When the rotation limiting structure is limited, the second limiting block is in contact with the first limiting block and is limited by the first limiting block.

2. The rotation limiting structure according to claim 1, wherein The installation positions comprise a first installation position and a second installation position, and the first installation position is arranged on the right side of the second installation position; When the radiation source assembly is arranged on the left side for scanning, the first limiting block is arranged in the first installation position; When the radiation source assembly is arranged on the right side for scanning, the first limiting block is arranged in the second installation position.

3. The rotation limiting structure according to claim 1, wherein The connecting block is a circular block with a through hole in the middle, the connecting block is sleeved on the driving end, and the installation positions are arranged on the side surface of the connecting block.

4. The rotation limiting structure according to claim 1, wherein The rotating assembly is provided with a fixing position for installing the radiation source assembly.

5. The rotation limiting structure according to claim 1, wherein The first limiting block comprises a first fixing block and a first protrusion, the first fixing block is detachably connected with the installation positions, and the first protrusion is fixedly arranged on one side of the first fixing block facing the rotating assembly.

6. The rotation limiting structure according to claim 1, wherein The second limiting block comprises a second fixing block and a second protrusion, the second fixing block is fixedly arranged on the side surface of the connecting assembly, and the second protrusion is fixedly arranged on one side of the second fixing block facing the connecting assembly.

7. The rotation limiting structure according to claim 1, wherein The installation positions are provided with a plurality of screw holes.

8. The rotation limiting structure according to claim 7, wherein The first limiting block is provided with a fixing hole corresponding to the position of the screw hole.

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