C-arm rotation limiting device of C-arm X-ray machine

Abstract

The utility model discloses a C-arm rotation limiting device of a C-arm X-ray machine, the C-arm X-ray machine comprises a brake disc, a rotating disc, a fixed seat and a C-arm assembly, the brake disc is fixed on the fixed seat, the rotating disc is fixed on the C-arm assembly, a rotating shaft of the rotating disc sequentially penetrates through the brake disc and the fixed seat, and the C-arm assembly is fixed on the fixed seat. A rotating shaft of the rotating disc can rotate in a center hole of the fixing seat, the C-arm rotation limiting device comprises a middle rotating disc, the rotating shaft of the rotating disc is sleeved with the middle rotating disc, the middle rotating disc is located between the rotating disc and the brake disc, and the middle rotating disc is provided with a middle rotating protruding part protruding towards the two sides. The rotating disc is provided with a limiting protruding part matched with the transfer protruding part, and the brake disc is provided with a brake protruding part matched with the transfer protruding part.

Description

Technical Field

[0001] The utility model relates to the technical field of limiting mechanical structures, in particular to a C-arm rotation limiting device of a C-arm X-ray machine. Background Art

[0002] In a C-arm X-ray machine, the process of the C-arm rotating around the rotation axis is called the rotation of the C-arm, and limiting means that the C-arm cannot continue to rotate after rotating to a certain angle around the rotation axis.

[0003] Most of the existing C-arm X-ray machines do not have the C-arm rotation limit function, which means that the C-arm can rotate infinitely around the rotation axis, while cables need to be passed through the inside of the rotation axis. The infinitely rotating C-arm will entangle the cables inside the rotation axis, eventually causing damage to the cables and equipment; a small number of C-arm X-ray machines have the C-arm rotation limit function, but the added limit structure causes the C-arm rotation angle to be less than 360°, that is, the C-arm cannot rotate a complete circle, which greatly limits the scope of use of the C-arm X-ray machine. Summary of the invention

[0004] The purpose of the present application is to provide a C-arm rotation limiting device for a C-arm X-ray machine.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a C-arm rotation limiting device of a C-arm X-ray machine, the C-arm X-ray machine comprising a brake disc, a rotating disc, a fixed seat and a C-arm assembly, the brake disc is fixed on the fixed seat, the rotating disc is fixed on the C-arm assembly, the rotating axis of the rotating disc passes through the brake disc and the fixed seat in sequence, and the rotating axis of the rotating disc can rotate in the center hole of the fixed seat, the C-arm rotation limiting device comprises a central rotating disc, the central rotating disc is sleeved on the rotating axis of the rotating disc, and the central rotating disc is located between the rotating disc and the brake disc, the central rotating disc has a central rotating protrusion protruding to both sides, the rotating disc has a limiting protrusion matching with the central rotating protrusion, and the brake disc has a braking protrusion matching with the central rotating protrusion.

[0006] The transfer protrusion, the limiting protrusion and the braking protrusion are all boss structures.

[0007] As another case, the transfer protrusion, the limiting protrusion and the braking protrusion are all pin structures.

[0008] The brake disc is fixed on the fixing seat by screw one.

[0009] The rotating disk is fixed on the C-arm assembly by screw two.

[0010] In summary, the technical effects and advantages of the utility model are:

[0011] The utility model can make the C-arm rotate more than one circle, thereby expanding the use range of the C-arm X-ray machine, and can also prevent the C-arm from rotating unlimitedly, thereby protecting the safety of cables and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the planar structure of the utility model;

[0014] Figure 2 It is an explosion diagram of the utility model;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the utility model with parts removed;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the rotating disk of the utility model;

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the turntable in the utility model;

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the brake disc of the utility model;

[0019] In the figure: 1, brake disc; 1a, brake protrusion; 1b, fixing hole 1; 2, turntable; 2a, turntable protrusion; 3, rotating disc; 3a, limiting protrusion; 3b, fixing hole 2; 4, fixing seat; 5, C-arm assembly. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] like Figure 1-Figure 6As shown, the C-arm rotation limiting device of the C-arm X-ray machine comprises a brake disc 1, a rotating disc 3, a fixed seat 4 and a C-arm assembly 5, the brake disc 1 is fixed on the fixed seat 4, the rotating disc 3 is fixed on the C-arm assembly 5, the rotating axis of the rotating disc 3 passes through the brake disc 1 and the fixed seat 4 in sequence, and the rotating axis of the rotating disc 3 can rotate in the center hole of the fixed seat 4, the C-arm rotation limiting device comprises a central rotating disc 2, the central rotating disc 2 is rotatably sleeved on the rotating axis of the rotating disc 3, and the central rotating disc 2 is located between the rotating disc 3 and the brake disc 1, the central rotating disc 2 has a central transfer protrusion 2a protruding to both sides, the rotating disc 3 has a limiting protrusion 3a matching the central transfer protrusion 2a, and the brake disc 1 has a braking protrusion la matching the central transfer protrusion 2a.

[0022] Specifically, the brake disc 1 is fixed to the fixing seat 4 by screw 1, the rotating disc 3 is fixed to the C-arm assembly 5 by screw 2, the rotating axis of the rotating disc 3 first passes through the middle rotating disc 2, then passes through the brake disc 1, and then passes through the fixing seat 4, and can rotate in the center hole of the fixing seat 4, and the middle rotating disc 2 can also rotate arbitrarily around the rotating axis of the rotating disc 3;

[0023] When the C-arm assembly 5 rotates, the rotating disk 3 fixed on the C-arm assembly 5 is driven to rotate; when the limiting protrusion on the rotating disk 3 contacts the transfer protrusion 2a on the intermediate rotating disk 2, the intermediate rotating disk 2 begins to rotate with the rotating disk 3, and when the transfer protrusion 2a on the intermediate rotating disk 2 contacts the braking protrusion 1a on the brake disc 1, since the brake disc 1 is fixed on the fixing seat 4 and the fixing seat 4 is stationary, the intermediate rotating disk 2 cannot rotate at this time, and the rotating disk 3 cannot rotate either, and finally the C-arm assembly 5 cannot rotate, thereby achieving the effect of rotation limiting of the C-arm assembly 5; the rotation angle of the C-arm assembly 5 can be adjusted according to the size of the braking protrusion 1a on the brake disc 1, the size of the transfer protrusion 2a on the intermediate rotating disk 2, and the size of the rotating protrusion on the rotating disk 3, and the range can be within 0° to 720°; that is, in practice, a rotation limiting structure is formed by adding a intermediate rotating disk 2 between the rotating disk 3 and the brake disc 1, and the limiting angle of this rotation limiting structure exceeds 360°.

[0024] The transfer protrusion 2a, the limiting protrusion 3a and the braking protrusion 1a are all boss structures; this solution can also be adopted, in which the transfer protrusion 2a, the limiting protrusion 3a and the braking protrusion 1a are all pin structures; of course, in practice, fan-shaped or other shaped baffles can also be used to replace the above structure.

[0025] The brake disc 1 is fixed on the fixing seat 4 by means of a screw 1; the brake disc 1 is provided with a fixing hole 1b.

[0026] The rotating disk 3 is fixed on the C-arm assembly 5 by screw 2; the rotating disk 3 is provided with a fixing hole 2 3b.

[0027] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0028] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A C-arm rotation limiting device for a C-arm X-ray machine, the C-arm X-ray machine comprising a brake disc (1), a rotating disc (3), a fixed seat (4) and a C-arm assembly (5), wherein the brake disc (1) is fixed on the fixed seat (4), the rotating disc (3) is fixed on the C-arm assembly (5), the rotating axis of the rotating disc (3) passes through the brake disc (1) and the fixed seat (4) in sequence, and the rotating axis of the rotating disc (3) can rotate in the center hole of the fixed seat (4), characterized in that: The C-arm rotation limiting device comprises a central rotating disk (2), wherein the central rotating disk (2) is sleeved on the rotating shaft of the rotating disk (3), and the central rotating disk (2) is located between the rotating disk (3) and the brake disk (1), wherein the central rotating disk (2) has a central rotating protrusion (2a) protruding to both sides, the rotating disk (3) has a limiting protrusion (3a) matched with the central rotating protrusion (2a), and the brake disk (1) has a braking protrusion (1a) matched with the central rotating protrusion (2a).

2. A C-arm rotation limiting device for a C-arm X-ray machine according to claim 1, characterized in that: The transfer convex portion (2a), the limiting convex portion (3a) and the braking convex portion (1a) are all boss structures.

3. The C-arm rotation limiting device of a C-arm X-ray machine according to claim 1, characterized in that: The transfer convex portion (2a), the limiting convex portion (3a) and the braking convex portion (1a) are all pin structures.

4. The C-arm rotation limiting device of a C-arm X-ray machine according to claim 1, characterized in that: The brake disc (1) is fixed on the fixing seat (4) by means of screw 1.

5. The C-arm rotation limiting device of a C-arm X-ray machine according to claim 4, characterized in that: The rotating disk (3) is fixed on the C-arm assembly (5) by means of screw 2.

Images