Rotating shaft mechanism for supporting end of supporting arm and medical equipment

Abstract

The utility model provides a rotating shaft mechanism for a supporting end of a supporting arm and medical equipment. The supporting arm comprises a mounting base and a supporting base, the mounting base and the supporting base are rotationally connected through a rotating shaft mechanism, and the rotating shaft mechanism comprises a connecting shaft, a bolt assembly, a first fixing piece, a second fixing piece and a fastening nut. The connecting shaft penetrates through the supporting seat and is arranged in the mounting seat in a penetrating manner; the connecting shaft is movably sleeved with the first fixing piece, and the first fixing piece penetrates through the supporting base and is connected with the mounting base through a bolt assembly. The second fixing piece is fixedly arranged on the connecting shaft in a sleeving mode and connected with the supporting base through a bolt assembly; the fastening nut is screwed at one end of the connecting shaft; when the supporting base rotates, the second fixing piece is driven to rotate relative to the installation base, the second fixing piece is provided with a receding part for the bolt assembly of the first fixing piece to pass through, and the installation direction of the bolt assembly of the first fixing piece is the same as that of the bolt assembly of the second fixing piece. And the supporting seat and the mounting seat can be conveniently dismounted and mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and in particular to a rotating shaft mechanism for an arm support end and medical equipment. Background Art

[0002] In modern medical equipment, such as anesthesia machines and ventilators, the requirements for flexibility, stability and ease of operation are increasing. These devices usually contain multiple modular components to meet different treatment needs and patient vital sign monitoring. For example, the display of the ventilator needs to be connected to the host, and the display needs to be flexibly rotated and moved to facilitate the operation of medical staff. In order to ensure that medical staff can easily adjust the position of the equipment and ensure the smooth connection of various catheters, sensors and other accessories, an arm is usually used to achieve a rotating connection.

[0003] The existing arm structure includes a fixed end and a supporting end. The fixed end is used to fix the position of the arm, and the supporting end is used to connect other modules such as a display. In order to facilitate control of the display and other modules connected to the supporting end, the supporting end of the arm needs to be able to rotate.

[0004] However, the shaft mechanism for realizing the rotation of the support end in the support arm is usually integrated inside the support arm, and has a high degree of integration and precision, resulting in high machining accuracy of the shaft mechanism, which is not easy to install and is not conducive to subsequent disassembly, assembly and maintenance. Utility Model Content

[0005] The purpose of the utility model is to overcome at least one of the shortcomings of the above-mentioned related technologies and to provide a rotating shaft mechanism for the supporting end of an arm and a medical device.

[0006] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present invention.

[0007] According to one aspect of the utility model, a rotating shaft mechanism for a supporting end of a support arm is provided, wherein the support arm comprises a mounting seat and a supporting seat, wherein the mounting seat and the supporting seat are rotatably connected via the rotating shaft mechanism, and the rotating shaft mechanism comprises:

[0008] A connecting shaft passes through the support seat and is disposed in the mounting seat;

[0009] Bolt assembly;

[0010] A first fixing member, movably sleeved on the connecting shaft, the first fixing member passes through the supporting seat and is connected to the mounting seat via the bolt assembly;

[0011] A second fixing member, fixedly sleeved on the connecting shaft, the second fixing member and the supporting seat being connected via the bolt assembly;

[0012] A fastening nut is screwed onto one end of the connecting shaft;

[0013] When the support seat rotates, the second fixing member is driven to rotate relative to the mounting seat. The second fixing member is provided with a clearance portion for the bolt assembly of the first fixing member to pass through. The installation directions of the bolt assemblies of the first fixing member and the second fixing member are the same.

[0014] In an exemplary embodiment of the present utility model, at least one plane is formed on the side surface of the connecting shaft, and the hole on the second fixing member for the connecting shaft to pass through is adapted to the cross section of the connecting shaft.

[0015] In an exemplary embodiment of the present invention, at least two mounting holes for mounting the bolt assembly are evenly spaced along the circumferential direction on both the first fixing member and the second fixing member, and the mounting holes on the first fixing member are staggered with the mounting holes on the second fixing member.

[0016] In an exemplary embodiment of the present utility model, the rotating shaft mechanism further includes:

[0017] A shaft sleeve is movably mounted on the connecting shaft, and the shaft sleeve is located between the first fixing member and the second fixing member.

[0018] In an exemplary embodiment of the present utility model, the rotating shaft mechanism further includes:

[0019] A gasket is fixedly sleeved on the connecting shaft, and the gasket is located between the first fixing member and the fastening nut.

[0020] According to another aspect of the utility model, there is also provided an arm, comprising a mounting seat, a support seat and a pivot mechanism for the arm support end as described above, wherein the support seat comprises a fixed ear plate and a support plate, and the fixed ear plate is rotatably connected to the mounting seat via the pivot mechanism.

[0021] In an exemplary embodiment of the present utility model, a through hole for the first fixing member to pass through is formed on the fixing ear plate.

[0022] In an exemplary embodiment of the present utility model, the mounting seat is provided with a mounting groove for embedding the first fixing member, and the fixing ear plate is provided with a mounting groove for embedding the second fixing member.

[0023] In an exemplary embodiment of the present utility model, a limiting component for limiting the rotation angle of the support base is provided between the mounting base and the fixing ear plate.

[0024] According to another aspect of the present invention, a medical device is further provided, comprising the above-mentioned support arm.

[0025] The utility model provides a rotating shaft mechanism and medical equipment for the support end of the support arm, which has the following beneficial effects:

[0026] The rotating shaft mechanism of the utility model is used for the supporting end of the support arm, and is installed at the rotating connection between the mounting seat of the support arm and the support seat, so as to realize the relative rotation of the mounting seat and the support seat, so as to facilitate the rotation adjustment of the display and other modules on the mounting seat and the support seat. The first fixing member and the second fixing member are sleeved on the connecting shaft, and the fastening nut is screwed on the end of the connecting shaft, so that the connecting shaft, the first fixing member and the second fixing member form an integral module, and the yielding part arranged on the second fixing member can realize that the first fixing member and the second fixing member can be installed from the same direction. During installation, the first fixing member passes through the support seat and is fixedly connected to the mounting seat by the bolt assembly, so that the first fixing member is connected to the mounting seat, and the second fixing member is fixedly connected to the support seat by the bolt assembly from the same direction. The modularization of the rotating shaft mechanism enables the rotating shaft mechanism to be disassembled and assembled from the mounting seat and the support seat as a whole, and the bolt assembly used for fixing the rotating shaft mechanism is installed from the same direction, which facilitates the disassembly and installation between the support seat and the mounting seat.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural exploded diagram of the rotating shaft mechanism used for the supporting end of the arm according to an embodiment of the utility model.

[0030] Figure 2 It is a structural explosion diagram of the rotating shaft mechanism of the embodiment of the utility model.

[0031] Figure 3 It is a structural explosion diagram of the rotating shaft mechanism of the embodiment of the utility model.

[0032] Figure 4It is a structural sectional view of the rotating shaft mechanism of the embodiment of the utility model.

[0033] Figure 5 It is a structural schematic diagram of the support arm of an embodiment of the utility model.

[0034] The main structural marks in the figure are explained as follows:

[0035] 1. Mounting seat; 11. Limiting column; 2. Support seat; 21. Fixed ear plate; 22. Support plate; 23. Limiting groove; 3. Rotating shaft mechanism; 31. Connecting shaft; 32. First fixing member; 33. Second fixing member; 331. Yielding portion; 34. Fastening nut; 35. Bushing; 36. Gasket; 37. Bolt assembly; 4. Mounting groove; 5. Fixed seat; 6. Connecting arm; 7. Decorative washer. DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale.

[0037] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the diagram to another component, these terms are used in this specification only for convenience, such as according to the direction of the examples in the drawings. It is understood that if the device of the diagram is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0038] The terms "a", "an", "the", and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first" and "second" are used merely as labels and are not intended to limit the quantity of their objects.

[0039] The existing support arm structure has a rotating shaft mechanism that is integrated and installed inside the support arm. The rotating shaft mechanism has many parts and requires high processing accuracy, which makes the installation of the rotating shaft mechanism inconvenient, resulting in extremely inconvenient disassembly and maintenance of the rotating shaft mechanism in the later stage. In addition, it is not conducive to adjusting the rotation damping of the support arm.

[0040] Based on this, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the embodiment of the utility model provides a rotating shaft mechanism 3 for the support end of the support arm and a medical device. The support arm includes a mounting seat 1 and a support seat 2, and the mounting seat 1 and the support seat 2 are rotatably connected through the rotating shaft mechanism 3, and the rotating shaft mechanism 3 includes a connecting shaft 31, a bolt assembly 37, a first fixing member 32, a second fixing member 33 and a fastening nut 34. The connecting shaft 31 passes through the support seat 2 and is inserted into the mounting seat 1; the first fixing member 32 is movably sleeved on the connecting shaft 31, the first fixing member 32 passes through the support seat 2 and is connected to the mounting seat 1 by a bolt assembly 37; the second fixing member 33 is fixedly sleeved on the connecting shaft 31, and the second fixing member 33 is connected to the support seat 2 by a bolt assembly 37; the fastening nut 34 is screwed on one end of the connecting shaft 31; wherein, when the support seat 2 rotates, the second fixing member 33 is driven to rotate relative to the mounting seat 1, and a yielding portion 331 is provided on the second fixing member 33 for the bolt assembly 37 of the first fixing member 32 to pass through, and the installation directions of the bolt assemblies 37 of the first fixing member 32 and the second fixing member 33 are the same.

[0041] The rotating shaft mechanism 3 of the utility model is used for the supporting end of the support arm, and is installed at the rotation connection between the mounting seat 1 of the support arm and the support seat 2, so as to realize the relative rotation of the mounting seat 1 and the support seat 2, so as to facilitate the rotation adjustment of the display and other modules on the mounting seat 1 and the support seat 2. The first fixing member 32 and the second fixing member 33 are sleeved on the connecting shaft 31, and the fastening nut 34 is screwed on the end of the connecting shaft 31, so that the connecting shaft 31, the first fixing member 32 and the second fixing member 33 form an integral module, and the yielding portion 331 provided on the second fixing member 33 can realize that the first fixing member 32 and the second fixing member 33 can be installed from the same direction. During installation, the first fixing member 32 passes through the support seat 2 and is fixedly connected to the mounting seat 1 by the bolt assembly 37, so that the first fixing member 32 is connected to the mounting seat 1, and the second fixing member 33 is fixedly connected to the support seat 2 from the same direction by the bolt assembly 37. The pivot mechanism 3 is modularized so that the pivot mechanism 3 can be disassembled and assembled with the mounting seat 1 and the support seat 2 as a whole, and the bolt assembly 37 used to fix the pivot mechanism 3 is installed from the same direction, which facilitates the disassembly and installation between the support seat 2 and the mounting seat 1.

[0042] The following will describe in detail the various parts of the rotating shaft mechanism 3 for the support arm support end provided by the embodiment of the utility model in conjunction with the accompanying drawings:

[0043] In the implementation mode of the present utility model, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the shaft mechanism 3 is used for the support end of the support arm, and is installed at the rotation connection between the mounting seat 1 and the support seat 2 of the support arm to realize the relative rotation of the mounting seat 1 and the support seat 2, so as to facilitate the rotation adjustment of the display and other modules on the mounting seat 1 and the support seat 2. Among them, the support arm includes the mounting seat 1 and the support seat 2, and the mounting seat 1 and the support seat 2 are rotationally connected through the shaft mechanism 3.

[0044] The rotating shaft mechanism 3 includes a connecting shaft 31, a bolt assembly 37, a first fixing member 32, a second fixing member 33 and a fastening nut 34. The connecting shaft 31 can be a cylindrical shaft body, the first fixing member 32 and the first fixing member 32 are sleeved on the connecting shaft 31, and a limiting member is provided at one end of the connecting shaft 31 to prevent the first fixing member 32 and the second fixing member 33 from being separated from the connecting shaft 31. In addition, the first fixing member 32 is movably sleeved on the connecting shaft 31, that is, the first fixing member 32 is sleeved on the connecting shaft 31 and can rotate relative to the connecting shaft 31; the second fixing member 33 is fixedly sleeved on the connecting shaft 31, that is, the second fixing member 33 is sleeved on the connecting shaft 31 but will not rotate relative to the connecting shaft 31. After the first fixing member 32 passes through the support seat 2, it is fixedly connected to the mounting seat 1 through the bolt assembly 37, and the second fixing member 33 is fixedly connected to the support seat 2 through the bolt assembly 37. Therefore, when the support base 2 rotates relative to the mounting base 1 , the support base 2 can simultaneously drive the second fixing member 33 to rotate, thereby achieving a rotational connection between the mounting base 1 and the support base 2 .

[0045] Furthermore, the fastening nut 34 is screwed on one end of the connecting shaft 31, and the fastening nut 34 and the stopper are respectively located at the two ends of the connecting shaft 31, and the connecting shaft 31 is processed with threads adapted to the fastening nut 34. After the mounting seat 1 and the support seat 2 are rotationally connected through the rotating shaft mechanism 3, the fastening nut 34 is screwed on the end of the connecting shaft 31, and the first fixing member 32 is fixed to the mounting seat 1, and the second fixing member 33 is fixed to the support seat 2 by means of the bolt assembly 37, so as to realize the connection between the mounting seat 1 and the support seat 2, and the support seat 2 can only rotate around the connecting shaft 31 relative to the mounting seat 1, and will not be separated from the mounting seat 1. In addition, when the fastening nut 34 or the connecting shaft 31 is screwed, the tightening degree of the fastening nut 34 can be adjusted, and then the rotation damping of the support seat 2 can be adjusted.

[0046] At the same time, the second fixing member 33 is provided with a clearance portion 331 for the bolt assembly 37 of the first fixing member 32 to pass through, that is, the bolt assembly 37 for fixing the first fixing member 32 can pass through the second fixing member 33 through the clearance portion 331 and realize threaded connection with the first fixing member 32, so that the installation directions of the bolt assemblies 37 of the first fixing member 32 and the second fixing member 33 can be the same. The provision of the clearance portion 331 can enable the first fixing member 32, the connecting shaft 31 and the second fixing member 33 to be connected to the mounting seat 1. Specifically, the second fixing member 33 is provided with a clearance portion 331 for the bolt assembly 37 for fixing the first fixing member 32 to the mounting seat 1 to pass through, so that the bolt assembly 37 for fixing the first fixing member 32 to the mounting seat 1 and the bolt assembly 37 for fixing the second fixing member 33 to the support seat 2 can be installed from the same direction. The connecting shaft 31 , the first fixing member 32 and the second fixing member 33 can be assembled and disassembled with the mounting base 1 as an integral module, which greatly facilitates the installation and disassembly of the mounting base 1 and the supporting base 2 .

[0047] For example, the mounting seat 1 is provided with bolt holes for the first fixing member 32 to be installed and fixed; the support seat 2 is provided with bolt holes for the second fixing member 33 to be installed and fixed. During installation, the fastening nut 34 is screwed onto one end of the connecting shaft 31, and the first fixing member 32 and the second fixing member 33 are sequentially sleeved onto the connecting shaft 31, so that the end of the connecting shaft 31 screwed with the fastening nut 34 passes through the support seat 2 and is inserted into the interior of the mounting seat 1, and then the first fixing member 32 is fixed to the mounting seat 1 and the second fixing member 33 is fixed to the support seat 2 by the bolt assembly 37, thereby completing the rotational connection between the mounting seat 1 and the support seat 2. The design of the yielding portion 331 allows the bolt assemblies 37 of the first fixing member 32 and the second fixing member 33 to be installed from the side close to the second fixing member 33, which is conducive to the disassembly and assembly of the mounting seat 1 and the support seat 2.

[0048] It should be noted that the bolt assembly 37 refers to all bolts used to realize the bolt connection between the first fixing member 32 and the mounting seat 1 , and the bolt connection between the second fixing member 33 and the supporting seat 2 .

[0049] In an exemplary embodiment of the present invention, Figure 2As shown, at least one plane is formed on the side of the connecting shaft 31, and the hole on the second fixing member 33 for the connecting shaft 31 to pass through is adapted to the cross section of the connecting shaft 31. Specifically, at least one plane is formed on the side of the connecting shaft 31 along the axial direction of the connecting shaft 31, that is, the side of the connecting shaft 31 is cut along the axial direction to form a plane parallel to the axis of the connecting shaft 31. For example, two planes are symmetrically formed on the side of the connecting shaft 31, and the hole on the second fixing member 33 for the connecting shaft 31 to pass through is adapted to the connecting shaft 31, so that the second fixing member 33 is sleeved on the connecting shaft 31 and can move along the axial direction of the connecting shaft 31, but cannot rotate around the axis of the connecting shaft 31. The hole on the first fixing member 32 for the connecting shaft 31 to pass through is a circular hole, and the diameter of the circular hole is the same as the maximum diameter of the connecting shaft 31, so that the first fixing member 32 can rotate relative to the connecting shaft 31.

[0050] In another exemplary embodiment of the utility model, at least two mounting holes for installing the bolt assembly 37 are evenly arranged on the first fixing member 32 and the second fixing member 33 along the circumferential direction, and the mounting holes on the first fixing member 32 and the mounting holes on the second fixing member 33 are arranged in a staggered manner. Specifically, at least two mounting holes are arranged on the first fixing member 32 and the second fixing member 33, and the mounting holes are used for screwing and installing the bolt assembly 37. At least two mounting holes are arranged at intervals along the circumference of the first fixing member 32 or the second fixing member 33, which is conducive to the stability and tightness of the installation of the first fixing member 32 and the second fixing member 33. Moreover, the mounting holes on the first fixing member 32 and the mounting holes on the second fixing member 33 are arranged in a staggered manner, which can facilitate the installation of the bolt assembly 37 of the first fixing member 32 through the yielding portion 331.

[0051] For example, the first fixing member 32 is in the shape of a square plate, and the second fixing member 33 is in the shape of a disc. The four corners of the first fixing member 32 are provided with mounting holes, and the second fixing member 33 is provided with four mounting holes along the circumferential direction. The four mounting holes on the first fixing member 32 and the four mounting holes on the second fixing member 33 are staggered. Therefore, a yielding portion 331 can be provided on the second fixing member 33 at a position opposite to the first fixing member 32, and the four bolt assemblies 37 for fixing the first fixing member 32 can pass through the yielding portion 331 to achieve the fixation of the first fixing member 32 and the mounting seat 1.

[0052] It should be noted that the first fixing member 32 can pass through the support base 2 and be fixedly connected to the mounting base 1, so that a through hole for the first fixing member 32 to pass through can be provided on the support base 2, and the shape and size of the through hole can be adapted to the shape and size of the first fixing member 32. Therefore, the specific shapes and sizes of the first fixing member 32 and the second fixing member 33 are not particularly limited.

[0053] Furthermore, the clearance portion 331 may be a clearance hole or a clearance groove opened on the second fixing member 33 , and the bolt assembly 37 for fixing the first fixing member 32 on the mounting seat 1 may completely pass through the clearance portion 331 .

[0054] In one embodiment of the utility model, the rotating shaft mechanism 3 further includes a sleeve 35. The sleeve 35 is movably sleeved on the connecting shaft 31, and the sleeve 35 is located between the first fixing member 32 and the second fixing member 33. Specifically, the sleeve 35 can be sleeved on the connecting shaft 31 in an annular shape, and can rotate relative to the connecting shaft 31, and the hole on the sleeve 35 for the connecting shaft 31 to pass through is a circular hole. The sleeve 35 is arranged between the first fixing member 32 and the second fixing member 33, which can ensure the stability of the first fixing member 32 and the second fixing member 33 after being fixed, and avoid the first fixing member 32 and the second fixing member 33 from abutting against each other, which affects the rotation of the support seat 2.

[0055] In one embodiment of the utility model, the rotating shaft mechanism 3 further includes a gasket 36. The gasket 36 is fixedly sleeved on the connecting shaft 31, and the gasket 36 is located between the first fixing member 32 and the fastening nut 34. Specifically, the gasket 36 is sleeved on the connecting shaft 31 and cannot rotate relative to the connecting shaft 31, and the hole on the gasket 36 through which the connecting shaft 31 passes is adapted to the connecting shaft 31. The gasket 36 can be elastically deformed, and when the connecting shaft 31 or the fastening nut 34 is screwed, the spring sheet can be deformed, so that the rotation damping of the support seat 2 can be better adjusted.

[0056] The utility model also provides a support arm, such as Figure 5 As shown, the arm includes a fixing seat 5, a connecting arm 6, a mounting seat 1, a supporting seat 2 and the above-mentioned rotating shaft mechanism 3. The fixing seat 5 is used to fix and install the entire arm, the supporting seat 2 is used to connect the display and other modules with the arm, the fixing seat 5 is rotatably connected to the connecting arm 6, the mounting seat 1 is rotatably connected to the arm, and the mounting seat 1 is rotatably connected to the supporting seat 2 through the rotating shaft mechanism 3.

[0057] The support base 2 includes a fixed ear plate 21 and a support plate 22. The fixed ear plates 21 may be provided with two pieces and symmetrically fixedly connected to the support plate 22. The fixed ear plates 21 are used to be rotatably connected to the mounting base 1. The mounting base 1 is arranged between the two fixed ear plates 21. The fixed ear plates 21 are provided with through holes. The connecting shaft 31 and the first fixing member 32 can pass through the through holes to connect with the mounting base 1, thereby realizing the rotatable connection between the mounting base 1 and the support base 2. The two fixed ear plates 21 are connected to the mounting base 1 through the rotating shaft mechanism 3. The support plate 22 is used to realize the connection between the support arm and the display or other auxiliary equipment. The connection method can be bolt connection, clamping, etc.

[0058] It should be noted that a limit piece is provided at one end of the connecting shaft 31, and a fastening nut 34 is screwed on the other end, so that the parts sleeved on the connecting shaft 31 will not fall off. Therefore, the end of the connecting shaft 31 screwed with the fastening nut 34 can be inserted into the mounting seat 1, or can be located near the fixed ear plate 21. The installation direction of the connecting shaft 31 can be selected by the staff according to the actual situation, and the utility model does not make special restrictions on this.

[0059] Furthermore, a through hole is provided on the fixing ear plate 21 for the first fixing member 32 to pass through. Specifically, according to the shape and size of the first fixing member 32, a through hole is provided on the fixing ear plate 21 for the first fixing member 32 to pass through. Thus, when installing the support seat 2, the mounting seat 1 is aligned with the support seat 2, and the module consisting of the connecting shaft 31, the first fixing member 32, the second fixing member 33 and the fastening nut 34 is installed through the through hole, and finally fixed by the bolt assembly 37.

[0060] In an exemplary embodiment of the utility model, the mounting seat 1 is provided with a mounting groove 4 for the first fixing member 32 to be embedded, and the support seat 2 is provided with a mounting groove 4 for the second fixing member 33 to be embedded. For example, the first fixing member 32 is a square plate structure, and the second fixing member 33 is a disc structure, then a square mounting groove 4 adapted to the first fixing member 32 is provided on the mounting seat 1, and a circular mounting groove 4 adapted to the second fixing member 33 is provided on the fixing ear plate 21, and the mounting seat 1 and the first fixing member 32 can be installed more conveniently, and the support seat 2 and the second fixing member 33 can be installed. The installation and disassembly of the support arm and the rotating shaft mechanism 3 are greatly facilitated, and the disassembly and maintenance efficiency of the support arm is effectively improved.

[0061] Furthermore, the first fixing member 32 may be a square plate structure, and the second fixing member 33 may be provided with a clearance portion 331. The shape of the mounting groove 4 is adapted to the shapes of the first fixing member 32 and the second fixing member 33, that is, the first fixing member 32 and the second fixing member 33 will not rotate after being embedded in the mounting groove 4, so that during the installation process of the support seat 2, the first fixing member 32 and the second fixing member 33 can be quickly positioned, effectively improving the installation efficiency of the support seat 2.

[0062] In an exemplary embodiment of the present invention, Figure 1 , Figure 3As shown, a limiting assembly for limiting the rotation angle of the support seat 2 is provided between the mounting seat 1 and the support seat 2. For example, the limiting assembly includes a limiting column 11 and a limiting groove 23, the limiting column 11 is fixed to the side of the fixed ear plate 21 facing the mounting seat 1, the limiting groove 23 is provided on the side of the mounting seat 1 facing the fixed ear plate 21, and the limiting column 11 is located in the limiting groove 23. When the support seat 2 rotates, the limiting column 11 also rotates around the axis of the connecting shaft 31 at the same time, so that the shape of the limiting groove 23 coincides with the trajectory of the limiting column 11 when rotating. Therefore, when the support seat 2 rotates, the limiting column 11 always slides in the limiting groove 23, and the rotation angle of the support seat 2 can be limited by limiting the length of the limiting groove 23.

[0063] In some embodiments, Figure 1 As shown, the support arm further includes a decorative gasket 7, which is disposed between the mounting seat 1 and the support seat 2, and the shaft mechanism 3 is located inside the decorative gasket 7. The decorative gasket 7 can prevent the shaft mechanism 3 from being directly observed by the outside line of sight, which improves the aesthetics of the support arm and prevents debris from entering the shaft mechanism 3 and destroying the stability of the rotation of the mounting seat 1 and the support seat 2.

[0064] The utility model further provides a medical device, including the above support arm. The medical device can be a ventilator, anesthesia machine, etc. The display, control screen and other modules of the medical device can be installed on the support seat 2 and connected to the host of the medical device through the support arm to facilitate the operation of the staff.

[0065] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

Claims

1. A rotating shaft mechanism for an arm support end, characterized in that: The support arm includes a mounting seat and a supporting seat, wherein the mounting seat and the supporting seat are rotatably connected via the rotating shaft mechanism, and the rotating shaft mechanism includes: A connecting shaft passes through the support seat and is disposed in the mounting seat; Bolt assembly; A first fixing member, movably sleeved on the connecting shaft, the first fixing member passes through the supporting seat and is connected to the mounting seat via the bolt assembly; A second fixing member, fixedly sleeved on the connecting shaft, the second fixing member and the supporting seat being connected via the bolt assembly; A fastening nut is screwed onto one end of the connecting shaft; When the support seat rotates, the second fixing member is driven to rotate relative to the mounting seat. The second fixing member is provided with a clearance portion for the bolt assembly of the first fixing member to pass through. The installation directions of the bolt assemblies of the first fixing member and the second fixing member are the same.

2. The rotating shaft mechanism for the support end of the arm according to claim 1, characterized in that: At least one plane is formed on the side surface of the connecting shaft, and the hole on the second fixing member for the connecting shaft to pass through is adapted to the cross section of the connecting shaft.

3. The rotating shaft mechanism for the support end of the support arm according to claim 1, characterized in that: At least two mounting holes for mounting the bolt assembly are evenly spaced along the circumferential direction on both the first fixing member and the second fixing member, and the mounting holes on the first fixing member are staggered with the mounting holes on the second fixing member.

4. The rotating shaft mechanism for the support end of the arm according to claim 1, characterized in that: The rotating shaft mechanism also includes: A shaft sleeve is movably mounted on the connecting shaft, and the shaft sleeve is located between the first fixing member and the second fixing member.

5. The rotating shaft mechanism for the support end of the support arm according to claim 1, characterized in that: The rotating shaft mechanism also includes: A gasket is fixedly sleeved on the connecting shaft, and the gasket is located between the first fixing member and the fastening nut.

6. A support arm, characterized in that: It comprises a mounting seat, a support seat and a pivot mechanism for the support end of the arm as described in any one of claims 1 to 5, wherein the support seat comprises a fixed ear plate and a support plate, and the fixed ear plate is rotatably connected to the mounting seat via the pivot mechanism.

7. The support arm according to claim 6, characterized in that: The fixing ear plate is provided with a through hole for the first fixing member to pass through.

8. The support arm according to claim 6, characterized in that: The mounting seat is provided with a mounting groove for embedding the first fixing member, and the fixing ear plate is provided with a mounting groove for embedding the second fixing member.

9. The support arm according to claim 7, characterized in that: A limiting component for limiting the rotation angle of the support base is arranged between the mounting base and the fixing ear plate.

10. A medical device, characterized in that: Comprising the support arm according to any one of claims 6 to 9.

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