Rotary connection assembly, rotary support frame and medical device
By introducing rolling elements and adjustable braking components into the rotating connection assembly, the problem of easy failure of the braking structure is solved, and a stable rotational and friction braking effect is achieved, which is suitable for the rotating support frame of medical equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIEMENS SHENZHEN MAGNETIC RESONANCE
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-19
AI Technical Summary
The braking structure of existing rotating connection components is prone to failure, leading to unstable friction braking.
By incorporating a rolling element and a braking component in the rotating connection assembly, the rolling element supports the rotation along the circumference of the shaft, while the braking component grips the shaft to increase friction. Combined with the bolt and nut assembly, the magnitude of the friction is adjusted to achieve stable rotation and friction braking.
It achieves improved stability and friction braking performance of the rotating connection component, and has a compact structure that is easy to assemble.
Smart Images
Figure CN224381141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment, and more particularly to a rotating connection assembly, a rotating support frame including the same, and medical equipment. Background Technology
[0002] In medical devices, rotary connection assemblies are often used to achieve rotational connections between components. To achieve rotational braking, a braking structure is usually incorporated into the rotary connection assembly. However, existing braking structures in rotary connection assemblies suffer from the problem of easy failure of friction braking. Utility Model Content
[0003] The purpose of this invention is to provide a rotating connection assembly that facilitates more stable friction braking performance.
[0004] Another objective of this invention is to provide a rotating support frame for medical equipment, which facilitates the achievement of more stable friction braking performance.
[0005] Another objective of this invention is to provide a medical device whose rotating support frame facilitates more stable friction braking performance.
[0006] This invention provides a rotating connection assembly for connecting a base and a rotating shaft. The rotating connection assembly includes a main body and a set of rolling elements. The main body includes a rotating connection portion and a braking portion, segmented along the mating axis. The rotating connection portion is used to fix the base. The rotating connection portion has a connecting hole. The connecting hole is configured to allow the rotating shaft to pass through the connecting hole at an angle parallel to the mating axis. The braking portion is clamp-shaped. The braking portion can deform to hold the rotating shaft passing through the connecting hole. A set of rolling elements is arranged circumferentially between the wall of the connecting hole and the rotating shaft. The rolling elements can support the rotating shaft to rotate about its axis relative to the rotating connection portion by rolling circumferentially along the shaft.
[0007] The rotating connection assembly provided by this utility model has a rotating connection part and a braking part arranged in segments along the docking axis. Rolling elements are provided between the rotating connection part and the rotating shaft to support the rotation of the rotating shaft in the radial direction. The braking part holds the rotating shaft to increase the friction force that the rotating shaft needs to overcome. This rotating connection assembly has a compact structure and is conducive to achieving relatively stable rotation performance and friction braking performance.
[0008] In another illustrative embodiment of the rotating connection assembly, the wall of the connecting hole is recessed with an annular groove extending circumferentially along the shaft. A rolling element is rotatably disposed within the annular groove. This facilitates improved stability of the shaft's rotation.
[0009] In another illustrative embodiment of the rotary connection assembly, the rotary connection portion includes a first splicing portion and a second splicing portion that are separately disposed along the mating axis. Both the first and second splicing portions are annular and detachably connected to each other. The opposing end faces of the first and second splicing portions along the mating axis are joined to form an annular groove. This facilitates assembly.
[0010] In another illustrative embodiment of the rotating connection assembly, the braking part is an open annular shape. The braking part includes a connecting section and two clamping arms. The connecting section is fixedly connected to a second splicing part. The two clamping arms extend from the connecting section in opposite directions and are arranged around a pivot axis. The rotating connection assembly also includes a bolt and nut assembly. The bolt and nut assembly passes through the ends of the two clamping arms to adjust the distance between the ends of the two clamping arms, thereby changing the degree of deformation of the braking part. This structure is simple and has a good braking effect.
[0011] This utility model also provides a rotating support frame for a medical device, which includes the aforementioned rotating connection assembly, base, and rotating shaft. The base is fixedly connected to the rotating connection part. The rotating shaft passes through the connection hole and can rotate relative to the rotating connection part about its axis under the support of rolling elements. The braking part can deform to hold the rotating shaft, thereby increasing the frictional force that the rotating shaft needs to overcome. This rotating support frame facilitates the achievement of more stable rotational performance and friction braking performance.
[0012] In another illustrative embodiment of the rotating support frame of the medical device, the base has a seat body. The seat body is located on the side of the rotating connection portion opposite to the braking portion. A radially projecting annular limiting flange extending circumferentially is provided at the tail end of the rotating shaft along the mating axis. The end faces of the rotating connection portion and the seat body, facing each other along the mating axis, are joined to form an annular limiting groove extending circumferentially along the rotating shaft. The limiting groove is used to accommodate the limiting flange. This facilitates improved stability of the rotating shaft.
[0013] In another illustrative embodiment of the rotating support frame of the medical device, the rotating support frame further includes two rolling bearings. The two rolling bearings are located in the limiting groove and are respectively disposed on both sides of the limiting flange along the mating axis, so as to support the limiting flange to rotate relative to each other within the limiting groove along the axial direction of the rotating shaft. This facilitates improved stability of the rotating shaft.
[0014] In another illustrative embodiment of the rotating support frame of the medical device, the rotating shaft is in the form of a hollow tube. The base has a through hole communicating with the cavity of the rotating shaft. This facilitates the routing of cables inside the rotating support frame.
[0015] In another illustrative embodiment of the rotating support frame of the medical device, a positioning groove is formed by a recess on the end face of the base facing the rotating connection. The tail end of the rotating shaft along the mating axis is rotatably inserted into the positioning groove about the axis of the rotating shaft. This helps to improve the stability of the rotating shaft rotation.
[0016] This invention also provides a medical device comprising the aforementioned rotating support frame. This rotating support frame facilitates more stable rotational performance and friction braking performance. Attached Figure Description
[0017] The following figures are for illustrative purposes only and do not limit the scope of the present invention.
[0018] Figure 1 This is a schematic diagram illustrating one embodiment of the rotating connection assembly.
[0019] Figure 2 For display Figure 1 The diagram shows a partial exploded view of the rotating connection assembly.
[0020] Figure 3 For illustrative purposes Figure 1 The diagram shows a cross-sectional view of the rotating connection assembly.
[0021] Label Explanation
[0022] 100° Rotational Connection Assembly
[0023] 10 main bodies
[0024] 11 Rotary connection part
[0025] P1 First splicing section
[0026] P2 Second splicing section
[0027] 112 connection hole
[0028] 114 Annular Grooves
[0029] 15 Braking Unit
[0030] 151 connecting section
[0031] 153 with arms crossed
[0032] 30 rolling parts
[0033] 50 bolt and nut assembly
[0034] 60 bases
[0035] 61 seats
[0036] 62 through holes
[0037] 63 positioning slots
[0038] 70 swivel
[0039] 71 Limiting flange
[0040] 80 limit slot
[0041] 90 rolling bearing
[0042] D-joint axis
[0043] The axis of the L-axis Detailed Implementation
[0044] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, specific embodiments of the present utility model are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.
[0045] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.
[0046] In this document, terms such as "first" and "second" do not indicate their importance or order, but are only used to distinguish them to facilitate the description of the document.
[0047] To keep the drawings simple, each drawing only schematically shows the parts related to this utility model, and they do not represent the actual structure of the product.
[0048] Figure 1 This is a schematic diagram illustrating one embodiment of the rotating connection assembly. Figure 2 For display Figure 1 The diagram shows a partial exploded view of the rotating connection assembly. Figure 3 For illustrative purposes Figure 1 The diagram shows a cross-sectional view of the rotating connection assembly. Figures 1 to 3 As shown, the rotating connection assembly 100 is used to connect the base 60 and the rotating shaft 70. For ease of distinction in the figure, Figures 1 to 3 The central base 60 and the rotating shaft 70 are drawn with dashed lines, while the rotating connection component 100 is drawn with solid lines.
[0049] like Figures 1 to 3 As shown, the rotating connection assembly 100 includes a main body 10 and a set of rolling elements 30. Figure 1 (Not visible in the image). The main body 10 includes a rotating connecting portion 11 and a braking portion 15, which are segmented along the docking axis D. The rotating connecting portion 11 is used to fix the connecting base 60. In this illustrative embodiment, the rotating connecting portion 11 includes a first splicing portion P1 and a second splicing portion P2, which are segmented along the docking axis D, but are not limited thereto. Figure 3As shown, the rotating connection 11 has a connection hole 112. The connection hole 112 is provided so that the rotating shaft 70 can pass through the connection hole 112 at an angle where its axis L is parallel to the docking axis D. In this illustrative embodiment, the rotating connection 11 is, for example, generally annular, but is not limited thereto.
[0050] like Figure 1 As shown, the braking part 15 is fixedly connected to the rotating connecting part 11 and is in the form of a clamp. The braking part 15 can deform to hold the rotating shaft 70 passing through the connecting hole 112, thereby increasing the frictional force that the rotating shaft 70 needs to overcome. Specifically, in this illustrative embodiment, the braking part 15 is in the form of an open annulus. The surface of the braking part 15 facing the rotating shaft 70 extends continuously along the mating axis D (i.e., extends cylindrically) to maximize the contact area with the rotating shaft 70. Figure 2 As shown, the braking part 15 includes a connecting section 151 and two retaining arms 153 (a dashed line is drawn between the connecting section 151 and the retaining arms 153 for easy distinction in the figure). The connecting section 151 is fixedly connected to the second splice P2 of the rotating connecting part 11. The two retaining arms 153 extend from the connecting section 151 in opposite directions and are arranged around the pivot 70. The two retaining arms 153 are separated from the second splice P2 so that they can deform independently. The rotating connecting assembly 100 also includes a bolt and nut assembly 50. The bolt and nut assembly 50 passes through the ends of the two retaining arms 153 to adjust the distance between the ends of the two retaining arms 153, thereby changing the degree of deformation of the braking part 15. The bolt and nut assembly 50 includes, for example, a bolt and a nut threadedly connected to the bolt. The bolt of the bolt and nut assembly 50 passes through the ends of the two retaining arms 153. The bolt and nut assembly 50 limits the degree of deformation of the braking part 15 by the relative compression of the ends of the two retaining arms 153 by the nut and bolt of its bolt. The degree of deformation of the braking part 15 can be adjusted by adjusting the distance between the nut and bolt, thereby changing the magnitude of the friction between the braking part 15 and the rotating shaft 70. This structure is simple and has a good braking effect.
[0051] like Figure 2 and Figure 3As shown, a set of rolling elements 30 are arranged circumferentially between the wall of the connecting hole 112 and the rotating shaft 70. The rolling elements 30 can support the rotating shaft 70 to rotate about its axis relative to the rotating connection portion 11 by rolling circumferentially along the shaft 70. Specifically, in this illustrative embodiment, the wall of the connecting hole 112 is recessed with an annular groove 114 extending circumferentially along the shaft 70. The rolling elements 30 are rotatably disposed in the annular groove 114. The annular groove 114 can limit the rolling elements 30 to roll circumferentially along the shaft 70. However, this is not a limitation. In other illustrative embodiments, an annular groove may be provided only on the circumferential wall of the shaft 70, or opposing annular grooves may be provided on the wall of the connecting hole 112 and the circumferential wall of the shaft 70 to accommodate the rolling elements 30. By providing an annular groove to accommodate the rolling elements, it is beneficial to improve the stability of the shaft rotation. In this illustrative embodiment, the rolling element 30 is a ball, but it is not limited to this. In other illustrative embodiments, the rolling element 30 may also be a roller.
[0052] The rotating connection assembly has a rotating connection part 11 and a braking part 15 arranged in segments along the docking axis D. The rotating shaft 70 is supported to rotate radially by a rolling element 30 between the rotating connection part 11 and the rotating shaft 70, and the rotating shaft 70 is increased by the braking part 15 holding the rotating shaft 70. The rotating connection assembly has a compact structure and is conducive to achieving relatively stable rotation performance and friction braking performance.
[0053] In this illustrative embodiment, the rotating connection 11 includes a first splicing part P1 and a second splicing part P2, which are separately disposed along the docking axis D. Both the first splicing part P1 and the second splicing part P2 are annular. The first splicing part P1 and the second splicing part P2 are detachably connected to each other, for example, by bolts. The end faces of the first splicing part P1 and the second splicing part P2, which are opposite each other along the docking axis D, are joined to form an annular groove 114. Specifically, in this illustrative embodiment, the circumferential wall of the annular groove 114 and one end wall along the docking axis D are provided, for example, in the first splicing part P1, and the other end wall along the docking axis D is provided, for example, in the second splicing part P2. During assembly, for example, the first splicing part P1 can be first fitted into the rotating shaft 70. At this time, a groove is formed between the surface of the first splicing part P1 that forms the annular groove 114 and the rotating shaft 70. A rolling element 30 is installed in this groove. Then, the second splicing part P2 is fitted into the rotating shaft 70, and the first splicing part P1 and the second splicing part P2 are fixed. This facilitates assembly. In other illustrative embodiments, the circumferential wall of the annular groove 114 and one end wall along the docking axis D may be disposed in the second splicing portion P2, and the other end wall along the docking axis D may be disposed in the first splicing portion P1. Alternatively, the annular groove 114 may be divided into two parts along the docking axis D, with one part disposed in the first splicing portion P1 and the other part disposed in the second splicing portion P2.
[0054] In an illustrative embodiment, the braking part 15 and the second splicing part P2 are, for example, a single component formed by an integral molding process. This helps to improve structural strength. Integral molding processes include, for example, 3D printing, injection molding, die casting, forging, CNC machining, etc., but are not limited to these. In other illustrative embodiments, the braking part 15 and the second splicing part P2 can also be fixedly connected by welding, bolting, or other methods.
[0055] This utility model also provides a rotating support frame for a medical device. The medical device is, for example, an angiography machine, and the rotating support frame is, for example, part of the monitor suspension system of the angiography machine, but is not limited thereto. Figures 1 to 3 As shown, in one schematic embodiment of the rotating support frame, the rotating support frame includes a Figure 1 The rotating connection assembly 100, a base 60, and a rotating shaft 70 are shown. The base 60 is fixedly connected to the rotating connection portion 11. The rotating shaft 70 passes through the connection hole 112 and is able to rotate relative to the rotating connection portion 11 about its axis L with the support of the rolling element 30. The braking part 15 can deform to hold the rotating shaft 70, thereby increasing the frictional force that the rotating shaft 70 needs to overcome. This rotating support frame facilitates more stable rotational performance and friction braking performance.
[0056] like Figures 1 to 3 As shown, in the schematic embodiment, the base 60 has a seat 61. The seat 61 is disposed on the side of the rotatable connection 11 opposite to the braking part 15 (i.e., Figures 1 to 3 The lower side of the shaft 70 along the mating axis to the tail end of D (i.e., the lower side of the shaft). Figure 2 and Figure 3 The lower end of the shaft 70 has a radially protruding annular limiting flange 71 extending circumferentially. The rotating connecting part 11 and the seat body 61 have their opposite end faces along the mating axis D to form an annular limiting groove 80 extending circumferentially along the shaft 70. The limiting groove 80 is used to accommodate the limiting flange 71 to prevent axial movement of the shaft 70. This helps to improve the stability of the rotation of the shaft 70.
[0057] like Figure 2 and Figure 3 As shown in the schematic embodiment, the rotating support frame further includes two rolling bearings 90. The two rolling bearings 90 are located in the limiting groove 80 and are respectively disposed on both sides of the limiting flange 71 along the mating axis D, to support the limiting flange 71 rotating relative to each other within the limiting groove 80 along the axial direction of the rotating shaft 70. This facilitates improved stability of the rotation of the rotating shaft 70. The rolling bearings are, for example, ball bearings or roller bearings.
[0058] like Figure 3 As shown, in the schematic embodiment, the rotating shaft 70 is a hollow tube. The base 60 has a through hole 62 communicating with the cavity of the rotating shaft 70. This facilitates the installation of cables inside the rotating support frame.
[0059] like Figure 2 and Figure 3 As shown, in the schematic embodiment, the end face of the seat 61 facing the rotating connection portion 11 (i.e., Figure 2 and Figure 3 The upper end face of the shaft 70 is recessed to form a positioning groove 63. The shaft 70 extends along the mating axis to the tail end of D (i.e., Figure 2 and Figure 3 The lower end of the shaft 70 is rotatably inserted into the positioning groove 63 around the axis L of the shaft 70. This helps to improve the stability of the rotation of the shaft 70.
[0060] This invention also provides a medical device comprising the aforementioned rotating support frame. The medical device is, for example, an angiography machine, and the rotating support frame is, for example, part of the monitor suspension system of the angiography machine, but is not limited thereto. The rotating support frame of this medical device facilitates more stable rotational performance and friction braking performance.
[0061] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
[0062] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. All equivalent implementation schemes or modifications made without departing from the spirit of the present utility model, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present utility model.
Claims
1. A rotary connection assembly for connecting a base (60) and a rotating shaft (70), characterized in that, include: The main body (10) includes segments arranged along the docking axis (D): A rotating connecting part (11) for fixing the base (60) has a connecting hole (112) arranged so that the rotating shaft (70) can pass through the connecting hole (112) at an angle parallel to the docking axis (D). A braking part (15), which is fixedly connected to the rotating connecting part (11) and is in the form of a clamp, the braking part (15) being deformable to hold the rotating shaft (70) passing through the connecting hole (112); and A set of rolling elements (30) arranged circumferentially along the shaft (70) between the wall of the connecting hole (112) and the shaft (70), the rolling elements (30) supporting the shaft (70) to rotate about its axis relative to the rotating connection (11) by rolling circumferentially along the shaft (70).
2. The rotary connection assembly of claim 1, wherein, The connecting hole (112) has an annular groove (114) extending circumferentially along the rotating shaft (70) in the hole wall, and the rolling element (30) is rotatably disposed in the annular groove (114).
3. The rotary connection assembly of claim 2, wherein, The rotating connection part (11) includes a first splicing part (P1) and a second splicing part (P2) separately arranged along the docking axis (D). The first splicing part (P1) and the second splicing part (P2) are both annular and detachably connected to each other. The first splicing part (P1) and the second splicing part (P2) are spliced together at their opposite end faces along the docking axis (D) to form the annular groove (114).
4. The rotating connection assembly as described in claim 3, characterized in that, The braking part (15) is an open ring. The braking part (15) includes a connecting section (151) and two clamping arms (153). The connecting section (151) is fixedly connected to the second splicing part (P2). The two clamping arms (153) extend from the connecting section (151) in opposite directions and are arranged around the rotating shaft (70). The rotating connection assembly also includes a bolt and nut assembly (50). The bolt and nut assembly (50) passes through the ends of the two clamping arms (153) to adjust the distance between the ends of the two clamping arms (153), thereby changing the degree of deformation of the braking part (15).
5. A rotating support frame for medical equipment, characterized in that, include: The rotating connection assembly as described in any one of claims 1 to 4; The base (60) is fixedly connected to the rotating connection part (11); and A rotating shaft (70) passes through the connecting hole (112) and is able to rotate about its axis relative to the rotating connecting part (11) under the support of the rolling element (30). The braking part (15) can deform to hold the rotating shaft (70), thereby increasing the friction force that needs to be overcome to rotate the rotating shaft (70).
6. The rotating support frame of the medical device as described in claim 5, characterized in that, The base (60) has a seat (61) which is disposed on the side of the rotating connection (11) away from the braking part (15). The rotating shaft (70) is provided with a radially protruding annular limiting flange (71) extending circumferentially at the tail end along the docking axis (D). The rotating connection (11) and the seat (61) are joined together at their opposite end faces along the docking axis (D) to form an annular limiting groove (80) extending circumferentially along the rotating shaft (70). The limiting groove (80) is used to accommodate the limiting flange (71).
7. The rotating support frame of the medical device as described in claim 6, characterized in that, The rotating support frame also includes two rolling bearings (90), which are located in the limiting groove (80) and respectively disposed on both sides of the limiting flange (71) along the docking axis (D) to support the limiting flange (71) to rotate in the limiting groove (80) relative to each other along the axis of the rotating shaft (70).
8. The rotating support frame of the medical device as described in claim 6, characterized in that, The rotating shaft (70) is in the shape of a hollow tube, and the base (60) has a through hole (62) that connects to the cavity of the rotating shaft (70).
9. The rotating support frame of the medical device as described in claim 6, characterized in that, The end face of the seat (61) facing the rotating connection (11) is recessed to form a positioning groove (63), and the shaft (70) is rotatably inserted into the positioning groove (63) around the axis of the shaft (70) at its tail end along the docking axis (D).
10. A medical device, characterized in that, The rotating support frame of the medical device as described in any one of claims 5 to 9.