Sliding and rotating positioning device of C-shaped arm X-ray machine
By adding positioning notches on the C arm of the C-arm X-ray machine and installing a spring limiting assembly on the oblique extending arm, the problem of doctors inaccurate adjustment of the C-arm angle during operation is solved, and the rapid and accurate positioning of the C-arm is achieved.
Patent Information
- Application Number
- CN202422145551.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-09-02
AI Technical Summary
When operating the C-arm X-ray machine, the doctor needs to manually slide the C-arm and determine whether the angle indicator needle points to the 0 scale line, resulting in inaccurate adjustment and time-consuming and labor-intensive.
A sliding positioning device is designed, including opening a set position notch on the C arm and installing a spring limiting assembly on the oblique extending arm. When the C arm slides to a specific position, the snap-in member snaps into the positioning notch, and the spring limiting assembly achieves the positioning effect.
The accurate positioning of the C arm is achieved, allowing the doctor to quickly and accurately adjust the C arm to the absolute zero position, improving the operating efficiency.
Smart Images
Figure CN222787754U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positioning and limiting, in particular to a sliding positioning device for a C-shaped arm X-ray machine. Background Art
[0002] In a C-arm X-ray machine, the movement of the C-arm sliding around the sliding center is called sliding, and when the C-arm slides to a certain angle, it will encounter a large resistance that causes the C-arm to stop rotating, which is called positioning.
[0003] When doctors operate a C-arm X-ray machine, they adjust the C-arm angle indicator needle to the 0-degree scale line in most scenarios, and only in a few scenarios will they adjust the C-arm angle indicator needle to other scale line positions. When adjusting, the doctor needs to manually slide the C-arm and use his eyes to judge whether the C-arm angle indicator needle points to the 0-degree scale line. Sometimes, after multiple adjustments, it is still impossible to accurately adjust to the absolute zero position, which is time-consuming and laborious. Therefore, it is necessary to design a sliding positioning device for a C-arm X-ray machine. Summary of the invention
[0004] The purpose of the present application is to provide a sliding positioning device for a C-arm X-ray machine.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a sliding positioning device for a C-arm X-ray machine, the C-arm X-ray machine includes an oblique arm and a C-arm arranged on the oblique arm, and the C-arm can slide freely on the oblique arm, characterized in that the sliding positioning device includes a spring limiting assembly installed on the oblique arm and a positioning notch opened on the C-arm, the spring limiting assembly includes an elastic member, a pressure block and a snap-in member, the elastic member and the pressure block are respectively installed in the mounting holes of the oblique arm, the snap-in member is installed on the pressure block, and under the action of the elastic member, the snap-in member can be snapped into the positioning notch.
[0006] The pressing block is also provided with a limiting groove, and the obliquely extending arm is provided with a limiting piece matched with the limiting groove.
[0007] The snap-in component is one of a bearing, a roller and a locking tongue.
[0008] The elastic member is a compression spring.
[0009] The positioning notch is in a semicircular shape.
[0010] The limiting member is a set screw.
[0011] The clamping piece is mounted on the pressing block via a step screw.
[0012] In summary, the technical effects and advantages of the utility model are:
[0013] The utility model adds a positioning notch on the C-arm and a spring limiting assembly on the oblique arm. When the C-arm slides, it can slide normally at other positions. When the positioning notch of the C-arm contacts the spring limiting assembly on the oblique arm, the C-arm is stuck at the spring limiting assembly to achieve the purpose of positioning, so that the doctor can adjust the C-arm to the absolute zero position more accurately and quickly. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] 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.
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 It is a partial structural schematic diagram of the utility model;
[0017] Figure 3 It is a three-dimensional structural schematic diagram of the utility model with parts removed;
[0018] Figure 4 This is a schematic diagram of the explosion structure of the utility model with parts removed;
[0019] Figure 5 It is a three-dimensional structural schematic diagram of the pressure block in the utility model;
[0020] In the figure: 1, spring limit assembly; 2, oblique extension arm; 2a, mounting hole; 3, pulley assembly; 4, elastic member; 5, pressure block; 5a, limit groove; 6, limiting member; 7, snap-in member; 9, C arm; 9a, positioning notch. DETAILED DESCRIPTION
[0021] 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.
[0022] like Figure 1-Figure 5As shown, the sliding positioning device of the C-arm X-ray machine, the C-arm X-ray machine includes an oblique arm 2 and a C-arm 9 arranged on the oblique arm 2, and the C-arm 9 can slide freely on the oblique arm 2. In this embodiment, the C-arm 9 can slide freely on the oblique arm 2 through a pulley assembly 3; the sliding positioning device includes a spring limit assembly 1 installed on the oblique arm 2 and a positioning notch 9a opened on the C-arm 9, specifically: the shape of the positioning notch 9a is semicircular, the number of the positioning notches 9a is two, and they are distributed on both sides of the C-arm 9 On the side, the number of corresponding pressure blocks 5 is also two, which are symmetrically distributed relative to the elastic member 4, and the elastic member 4 is a compression spring; the spring limiting assembly 1 includes an elastic member 4, a pressure block 5 and a snap-in member 7, the elastic member 4 and the pressure block 5 are respectively installed in the mounting hole 2a of the oblique extension arm 2, the elastic member 4 is arranged in the internal position, the pressure block 5 is arranged in the external position, and the snap-in member 7 is installed on the pressure block 5, specifically: the snap-in member 7 is installed on the pressure block 5 by a step screw; and under the action of the elastic member 4, the snap-in member 7 can be snapped into the positioning notch 9a.
[0023] A limiting groove 5a is also provided on the pressing block 5, and a limiting member 6 matching with the limiting groove 5a is installed on the oblique extension arm 2. Specifically, the limiting member 6 is a set screw.
[0024] The engaging member 7 is one of a bearing, a roller and a locking tongue. In the present embodiment, the engaging member 7 is a bearing. Of course, other rolling structures or sliding structures may also be used instead.
[0025] The step screw passes through the bearing to fix the bearing on the pressure block 5, and the two bearings are fixed on the pressure block 5 in the same way; the two pressure blocks 5 are then connected together by a compression spring, thus forming a spring limit assembly 1; the spring limit assembly 1 is installed in the mounting hole 2a of the oblique arm 2, and then the set screw is installed in the threaded hole on the oblique arm 2, and the set screw is inserted into the limit groove 5a of the pressure block 5; the pulley assembly 3 is installed on the oblique arm 2; the C arm 9 can slide freely on the oblique arm 2 through the pulley assembly 3;
[0026] When the C-arm 9 slides, the side end face of the C-arm 9 contacts the bearing surface, and the bearing rolls as the C-arm 9 slides. When the C-arm 9 slides to the semi-positioning notch 9a position, the bearing on the spring limit assembly 1 is subjected to the pressure of the compression spring and just sinks into the positioning notch 9a on the C-arm 9, so that the C-arm 9 stops sliding, thereby achieving the positioning effect; when the C-arm 9 is slid again with force, the bearing on the spring limit assembly 1 slides out of the positioning notch 9a on the C-arm 9, and the C-arm 9 can continue to slide normally.
[0027] The utility model adds a positioning notch 9a on the C-arm 9 and a spring limiting assembly 1 on the oblique arm 2. When the C-arm 9 slides, it can slide normally at other positions. When the positioning notch 9a of the C-arm 9 contacts the spring limiting assembly 1 on the oblique arm 2, the C-arm 9 is stuck at the spring limiting assembly 1 to achieve the purpose of positioning, so that the doctor can adjust the C-arm 9 to the absolute zero position more accurately and quickly.
[0028] 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.
[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is 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 sliding positioning device for a C-arm X-ray machine, the C-arm X-ray machine comprising an oblique arm (2) and a C-arm (9) arranged on the oblique arm (2), and the C-arm (9) can slide freely on the oblique arm (2), characterized in that: The sliding positioning device comprises a spring limiting assembly (1) mounted on the oblique arm (2) and a positioning notch (9a) provided on the C arm (9); the spring limiting assembly (1) comprises an elastic member (4), a pressure block (5) and a snap-in member (7); the elastic member (4) and the pressure block (5) are respectively mounted in a mounting hole (2a) of the oblique arm (2); the snap-in member (7) is mounted on the pressure block (5); and under the action of the elastic member (4), the snap-in member (7) can be snapped into the positioning notch (9a).
2. The sliding positioning device of a C-arm X-ray machine according to claim 1, characterized in that: The pressing block (5) is also provided with a limiting groove (5a), and the oblique extension arm (2) is provided with a limiting member (6) matching the limiting groove (5a).
3. The sliding positioning device of a C-arm X-ray machine according to claim 1, characterized in that: The snap-in component (7) is one of a bearing, a roller and a locking tongue.
4. The sliding positioning device of a C-arm X-ray machine according to claim 1, characterized in that: The elastic member (4) is a compression spring.
5. The sliding positioning device of a C-arm X-ray machine according to claim 1, characterized in that: The positioning notch (9a) is in the shape of a semicircle.
6. The sliding positioning device of a C-arm X-ray machine according to claim 2, characterized in that: The limiting member (6) is a set screw.
7. The sliding positioning device of a C-arm X-ray machine according to claim 1, characterized in that: The clamping piece (7) is mounted on the pressing block (5) via a stepped screw.