Support arm damping rotating shaft mechanism and medical equipment

Abstract

The utility model provides a supporting arm damping rotating shaft mechanism and medical equipment. The supporting arm damping rotating shaft mechanism comprises a rotating shaft mechanism and a rotating structure. Wherein the support arm comprises a fixing seat, a connecting arm, a mounting seat and a rotating seat, and the rotating shaft mechanism comprises a connecting shaft, a first fixing piece, a second fixing piece and a first fastening piece. The first fixing piece is fixedly arranged on the connecting shaft in a sleeving manner, and the first fixing piece is detachably connected with the connecting arm; the second fixing piece is movably arranged on the connecting shaft in a sleeving manner, and the second fixing piece is detachably connected with the fixing seat or the mounting seat; the first fastening piece is screwed at one end, close to the second fixing piece, of the connecting shaft; and the first fastener is screwed to change the rotation damping of the connecting shaft. The rotating mechanism comprises a rotating shaft and a second fastener, and when the second fastener is screwed, the opening size of the penetrating hole can be driven to change so as to change the rotating damping of the rotating shaft. By means of the damping rotating shaft mechanism, damping of all rotating joints of the supporting arm can be rapidly adjusted in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and in particular to a support arm damping shaft mechanism 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 usually 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. The arm structure can be rotated internally to adjust the position of the supporting end. The display and other modules connected to the supporting end can also be adjusted in angle, which is convenient for the staff to operate the display and other modules connected to the supporting end.

[0004] However, the shaft mechanism used to realize rotation in the support arm structure is usually integrated and installed inside the support arm, and has a high degree of integration and precision, which makes the shaft mechanism difficult to install and difficult to achieve rapid adjustment of the rotation damping of the shaft mechanism. Utility Model Content

[0005] The purpose of the utility model is to overcome at least one of the deficiencies of the above-mentioned related technologies and to provide an arm damping shaft mechanism 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 support arm damping shaft mechanism is provided, including a shaft mechanism and a rotating mechanism. The support arm includes a fixed seat, a connecting arm, a mounting seat and a rotating seat. The mounting seat and the connecting arm, and the connecting arm and the mounting seat are rotationally connected through the shaft mechanism. The mounting seat and the rotating seat are rotationally connected through the rotating mechanism. The shaft mechanism includes:

[0008] Connecting shaft;

[0009] A first fixing member, fixedly sleeved on the connecting shaft, wherein the first fixing member is detachably connected to the connecting arm;

[0010] A second fixing member, movably sleeved on the connecting shaft, the second fixing member being detachably connected to the fixing seat or the mounting seat;

[0011] A first fastener, screwed onto an end of the connecting shaft close to the second fixing member;

[0012] Twisting the first fastener can change the friction torque between the first fastener and the second fixing member, so as to change the rotation damping of the connecting shaft;

[0013] The rotating mechanism comprises:

[0014] A rotating shaft is passed through the mounting seat and the rotating seat to connect the mounting seat and the rotating seat;

[0015] A second fastener, screwed onto the mounting seat;

[0016] The through hole of the mounting seat for the rotating shaft to penetrate is in an open shape, and when the second fastener is screwed, the opening size of the through hole can be driven to change, so as to change the rotation damping of the rotating shaft.

[0017] In an exemplary embodiment of the present utility model, the rotating shaft mechanism further includes:

[0018] A shaft sleeve, which is movably mounted on the connecting shaft, and is located between the first fixing member and the second fixing member;

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

[0020] In an exemplary embodiment of the present utility model, the rotating seat includes a connecting plate and an adapter block, the rotating shaft is passed through the adapter block and is fixedly connected to the adapter block, and the rotating mechanism further includes:

[0021] The damping sleeve is sleeved on the rotating shaft, and the damping sleeve is in an open shape. When the second fastener is screwed, the size of the opening of the damping sleeve changes.

[0022] 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 first fixing member for the connecting shaft to pass through is adapted to the cross section of the connecting shaft.

[0023] In an exemplary embodiment of the present utility model, the rotating shaft mechanism further includes:

[0024] A bolt assembly, wherein the first fixing member is detachably connected to the connecting arm through the bolt assembly, and the second fixing member is detachably connected to the fixing seat or the mounting seat through the bolt assembly;

[0025] The bolt assemblies of the first fixing member and the second fixing member are both installed from one side of the second fixing member, and a clearance hole for the bolt assembly of the first fixing member to pass through is provided on the second fixing member.

[0026] In an exemplary embodiment of the present utility model, mounting holes for mounting the bolt assembly are uniformly arranged at circumferential intervals on the first fixing member and the second fixing member, the mounting holes on the first fixing member are staggered with the mounting holes on the second fixing member, and the mounting holes on the first fixing member are connected with the clearance holes on the second fixing member.

[0027] In an exemplary embodiment of the present utility model, a mounting groove for embedding the first fixing member is provided on the connecting arm, and mounting grooves for embedding the second fixing member are provided on the fixing seat and the mounting seat.

[0028] In an exemplary embodiment of the present utility model, a first limiting assembly is provided between the connecting arm and the fixing seat, and between the connecting arm and the mounting seat, for limiting the rotation angle of the rotating shaft mechanism.

[0029] In an exemplary embodiment of the present utility model, a second limiting component for limiting the rotation angle of the rotating mechanism is provided between the mounting seat and the adapter block.

[0030] According to another aspect of the present invention, a medical device is further provided, comprising the above-mentioned support arm damping shaft mechanism.

[0031] The utility model provides an arm damping shaft mechanism and medical equipment having the following beneficial effects:

[0032] The damping shaft mechanism of the utility model includes a shaft mechanism for realizing the rotational connection between the fixed seat and the connecting arm, the mounting seat and the connecting arm, and a rotating mechanism for realizing the rotational connection between the mounting seat and the rotating seat. The second fixing piece is movably sleeved on the connecting shaft, so that the fixed seat can rotate relative to the connecting arm, and the mounting seat can rotate relative to the connecting arm. When the first fastener is screwed, the friction torque between the first fastener and the second fixing piece can be changed, thereby realizing the adjustment of the rotational damping of the fixed seat and the connecting arm and the rotational damping of the mounting seat and the connecting arm; when the second fastener is screwed, the opening size of the perforation on the rotating seat for the rotating shaft to pass through can be changed, thereby changing the friction torque between the rotating shaft and the rotating seat, and then realizing the adjustment of the rotational damping between the mounting seat and the rotating seat. Therefore, the damping of each rotating joint of the support arm can be adjusted in real time and quickly through the damping shaft mechanism of the utility model.

[0033] 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

[0034] 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.

[0035] Figure 1 It is a structural explosion diagram of the support arm damping shaft mechanism of the embodiment of the utility model.

[0036] Figure 2 It is a structural explosion diagram of the rotating shaft mechanism of the embodiment of the utility model.

[0037] Figure 3 It is a structural explosion diagram of the rotating mechanism of the embodiment of the utility model.

[0038] Figure 4 It is a structural schematic diagram of the support arm of an embodiment of the utility model.

[0039] The main structural marks in the figure are explained as follows:

[0040] 1. Fixed seat; 11. Limiting groove; 2. Connecting arm; 21. Limiting column; 3. Mounting seat; 31. Connecting piece; 32. Bump; 4. Rotating seat; 41. Connecting plate; 42. Adapter block; 421. Groove; 5. Rotating shaft mechanism; 51. Connecting shaft; 52. First fixing piece; 53. Second fixing piece; 531. Yielding portion; 54. First fastener; 55. Bushing; 56. Gasket; 57. Bolt assembly; 6. Rotating mechanism; 61. Rotating shaft; 62. Second fastener; 63. Damping sleeve; 7. Mounting groove. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] 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.

[0044] The existing support arm structure includes multiple rotatably connected components, and each component is rotatably connected through a pivot mechanism. The pivot mechanism is usually integrated and installed inside the support arm, with high integration and precision. As a result, the pivot mechanism is difficult to install, and it is not convenient to disassemble and maintain the support arm at a later time, and it is difficult to quickly adjust the rotational damping of the pivot mechanism.

[0045] Based on this, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the embodiment of the utility model provides a support arm damping shaft mechanism and medical equipment, including a shaft mechanism 5 and a rotating structure, wherein the support arm includes a fixed seat 1, a connecting arm 2, a mounting seat 3 and a rotating seat 4, the mounting seat 3 and the connecting arm 2, the connecting arm 2 and the mounting seat 3 are rotatably connected through the shaft mechanism 5, and the mounting seat 3 and the rotating seat 4 are rotatably connected through the rotating mechanism 6, and the shaft mechanism 5 includes a connecting shaft 51, a first fixing member 52, a second fixing member 53 and a first fastener 54. The first fixing member 52 is fixedly sleeved on the connecting shaft 51, and the first fixing member 52 is detachably connected to the connecting arm 2; the second fixing member 53 is movably sleeved on the connecting shaft 51, and the second fixing member 53 is detachably connected to the fixed seat 1 or the mounting seat 3; the first fastener 54 is screwed on one end of the connecting shaft 51 close to the second fixing member 53; screwing the first fastener 54 can change the friction torque between the first fastener 54 and the second fixing member 53, which is used to change the rotation damping of the connecting shaft 51.

[0046] The rotating mechanism 6 includes a rotating shaft 61 and a second fastener 62. The rotating shaft 61 is passed through the mounting seat 3 and the rotating seat 4 to connect the mounting seat 3 and the rotating seat 4. The second fastener 62 is screwed on the mounting seat 3. The through hole of the mounting seat 3 for the rotating shaft 61 to pass through is open. When the second fastener 62 is screwed, the opening size of the through hole can be driven to change, which is used to change the rotation damping of the rotating shaft 61.

[0047] The damping shaft mechanism of the utility model comprises a shaft mechanism 5 for realizing the rotational connection between the fixed seat 1 and the connecting arm 2, the mounting seat 3 and the connecting arm 2, and a rotating mechanism 6 for realizing the rotational connection between the mounting seat 3 and the rotating seat 4. The second fixing member 53 is movably sleeved on the connecting shaft 51, so that the fixed seat 1 can rotate relative to the connecting arm 2, and the mounting seat 3 can rotate relative to the connecting arm 2. When the first fastener 54 is screwed, the friction torque between the first fastener 54 and the second fixing member 53 can be changed, thereby realizing the adjustment of the rotational damping of the fixed seat 1 and the connecting arm 2 and the rotational damping of the mounting seat 3 and the connecting arm 2; when the second fastener 62 is screwed, the opening size of the perforation on the rotating seat 4 for the rotating shaft 61 to pass through can be changed, thereby changing the friction torque between the rotating shaft 61 and the rotating seat 4, and then realizing the adjustment of the rotational damping between the mounting seat 3 and the rotating seat 4. Therefore, the damping of each rotating joint of the support arm can be adjusted in real time and quickly through the damping shaft mechanism 5 of the utility model.

[0048] The following will describe in detail the various parts of the support arm damping shaft mechanism provided by the embodiment of the utility model in conjunction with the accompanying drawings:

[0049] In the implementation mode of the present utility model, Figure 1 , Figure 4 As shown, the support arm includes a fixed seat 1, a mounting seat 3, a connecting arm 2 and a rotating seat 4. The fixed seat 1 is used to fix and install the entire support arm, and the fixing method can be bolt connection, clamping, etc.; the mounting seat 3 is used to realize the connection between the support arm and the display and other modules; at least one connecting arm 2 is provided, and the connecting arm 2 has two free ends, one of which is rotatably connected to the fixed seat 1, and the other free end is rotatably connected to the mounting seat 3. If multiple connecting arms 2 are provided, the multiple connecting arms 2 are rotatably connected head to tail; the rotating seat 4 is rotatably connected to the mounting seat 3, and the display and other modules are fixedly installed on the rotating seat 4. The rotatable connection between the connecting arm 2 and the fixed seat 1 and the mounting seat 3 can facilitate the adjustment of the position of the display and other modules, and the rotatable connection between the rotating seat 4 and the mounting seat 3 can realize the adjustment of the angle of the display and other modules, so as to facilitate the staff to operate the display and other modules.

[0050] The damping shaft mechanism includes a shaft mechanism 5 and a rotating mechanism 6, wherein the fixing seat 1 and the connecting arm 2 and the mounting seat 3 and the connecting arm 2 are connected in rotation via the shaft mechanism 5. The shaft mechanism 5 is described in detail below:

[0051] like Figure 1 , Figure 2 As shown, the rotating shaft mechanism 5 includes a connecting shaft 51, a bolt assembly 57, a first fixing member 52, a second fixing member 53 and a first fastener 54. The connecting shaft 51 can be a cylindrical shaft body, the first fixing member 52 and the first fixing member 52 are sleeved on the connecting shaft 51, and a limiting member can be provided at one end of the connecting shaft 51 to prevent the first fixing member 52 and the second fixing member 53 from being separated from the connecting shaft 51. In addition, the first fixing member 52 is fixedly sleeved on the connecting shaft 51, that is, the first fixing member 52 is sleeved on the connecting shaft 51 but will not rotate relative to the connecting shaft 51; the second fixing member 53 is movably sleeved on the connecting shaft 51, that is, the second fixing member 53 is sleeved on the connecting shaft 51 and can rotate relative to the connecting shaft 51. By making the first fixing member 52 fixedly connected to the connecting arm 2 and the second fixing member 53 fixedly connected to the fixing seat 1 or the mounting seat 3, the fixing seat 1 or the mounting seat 3 can be rotated relative to the connecting shaft 51, thereby realizing the rotational connection between the fixing seat 1 and the connecting arm 2 or the mounting seat 3 and the connecting arm 2.

[0052] Furthermore, the first fastener 54 can be a fastening nut, the first fastener 54 is screwed on the connecting shaft 51, the first fastener 54 and the limiter are respectively located at the two ends of the connecting shaft 51, and the connecting shaft 51 is processed with threads adapted to the first fastener 54. After the fixed seat 1 and the connecting arm 2, the mounting seat 3 and the connecting arm 2 are rotatably connected through the rotating shaft mechanism 5, the first fastener 54 is screwed on the end of the connecting shaft 51, and then the position of the fixed seat 1 and the connecting arm 2, the mounting seat 3 and the connecting arm 2 along the axial direction of the connecting shaft 51 can be fixed, so that the fixed seat 1 and the connecting arm 2, the mounting seat 3 and the connecting arm 2 can only rotate relative to each other and will not be separated from each other. When the first fastener 54 is screwed in the direction of approaching or moving away from the second fixing member 53, the friction torque between the first fastener 54 and the second fixing member 53 can be changed, and then the rotation damping between the fixed seat 1 and the connecting arm 2, and between the mounting seat 3 and the connecting arm 2 can be adjusted.

[0053] In one embodiment of the present invention, Figure 2As shown, the shaft mechanism 5 further includes a sleeve 55 and a gasket 56. The sleeve 55 is movably sleeved on the connecting shaft 51, and the sleeve 55 is located between the first fixing member 52 and the second fixing member 53. Specifically, the sleeve 55 can be annularly sleeved on the connecting shaft 51, and can rotate relative to the connecting shaft 51. The sleeve 55 is arranged between the first fixing member 52 and the second fixing member 53, which can ensure the stability of the first fixing member 52 and the second fixing member 53 after being fixed, and can also prevent the first fixing member 52 from abutting against the second fixing member 53, causing the rotation of the fixing seat 1 or the mounting seat 3 to be affected by the friction between the first fixing member 52 and the second fixing member 53.

[0054] The gasket 56 is fixedly sleeved on the connecting shaft 51, and the gasket 56 is located between the second fixing member 53 and the first fastening member 54. Specifically, the gasket 56 is sleeved on the connecting shaft 51 and cannot rotate relative to the connecting shaft 51. Since the gasket 56 is in contact with the second fixing member 53 and the first fastening member 54, when the first fastening member 54 is screwed, the gasket 56 will not rotate, thereby not driving the second fixing member 53 to rotate, thereby avoiding the fixing seat 1 and the connecting arm 2, the mounting seat 3 and the connecting arm 2 to rotate relative to each other when the tightening nut is screwed. In addition, the gasket 56 is located between the second fixing member 53 and the first fastening member 54, and the gasket 56 can be elastically deformed, thereby better realizing the adjustment of the rotation damping.

[0055] In an exemplary embodiment of the utility model, at least one plane is formed on the side of the connecting shaft 51, and the hole on the first fixing member 52 for the connecting shaft 51 to pass through is adapted to the cross section of the connecting shaft 51. Specifically, at least one plane is formed on the side of the connecting shaft 51 along the axial direction of the connecting shaft 51, that is, the side of the connecting shaft 51 is cut along the axial direction to form a plane parallel to the axis of the connecting shaft 51. For example, two planes are symmetrically formed on the side of the connecting shaft 51, and the hole on the first fixing member 52 for the connecting shaft 51 to pass through is a waist-shaped hole, and is adapted to the connecting shaft 51, so that the first fixing member 52 is sleeved on the connecting shaft 51 and can move along the axial direction of the connecting shaft 51, but cannot rotate around the axis of the connecting shaft 51. The hole on the second fixing member 53 for the connecting shaft 51 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 51, so that the second fixing member 53 can rotate relative to the connecting shaft 51.

[0056] Furthermore, the rotating shaft mechanism 5 further includes a bolt assembly 57, through which the first fixing member 52 is detachably connected to the connecting arm 2, and the second fixing member 53 is detachably connected to the fixing seat 1 or the mounting seat 3. The second fixing member 53 is provided with a clearance hole for the bolt assembly 57 of the first fixing member 52 to pass through, so that the bolt assemblies 57 of the first fixing member 52 and the second fixing member 53 can be installed from one side of the second fixing member 53.

[0057] Specifically, the setting of the clearance hole allows the bolt assembly 57 for fixing the first fixing member 52 and the connecting arm 2, and the bolt assembly 57 for fixing the second fixing member 53 and the fixing seat 1 or the mounting seat 3 to be installed from the same direction. For example, the connecting arm 2 is provided with a bolt hole for installing and fixing the first fixing member 52; the fixing seat 1 is provided with a bolt hole for installing and fixing the second fixing member 53. During installation, the connecting shaft 51, the first fixing member 52 and the second fixing member 53 are first installed on the connecting arm 2 through the bolt holes on the connecting arm 2, and the first fixing member 52 is fixedly connected to the connecting arm 2 by the bolt assembly 57, and then the fixing seat 1 is fixedly connected to the second fixing member 53 by the bolt assembly 57, and finally the fastening nut is screwed on the end of the connecting shaft 51, so as to complete the rotational connection between the fixing seat 1 and the second arm. The design of the clearance hole allows the bolt assembly 57 of the first fixing member 52 and the second fixing member 53 to be installed from the side close to the second fixing member 53, which facilitates the disassembly and assembly of the fixing seat 1 and the connecting arm 2, and the mounting seat 3 and the connecting arm 2.

[0058] Furthermore, the first fixing member 52 and the second fixing member 53 are both provided with mounting holes for the bolt assembly 57 to be installed at uniform intervals along the circumferential direction, the mounting holes on the first fixing member 52 and the mounting holes on the second fixing member 53 are arranged in a staggered manner, and the mounting holes on the first fixing member 52 are connected with the clearance holes on the second fixing member 53. Specifically, the first fixing member 52 and the second fixing member 53 are both provided with mounting holes, at least two mounting holes may be provided, and the mounting holes are uniformly arranged along the circumferential direction of the first fixing member 52 or the second fixing member 53, the mounting holes are used for screwing and installing the bolt assembly 57, and multiple mounting holes uniformly arranged at intervals are conducive to the stability and tightness of the installation of the first fixing member 52 and the second fixing member 53. Moreover, the mounting holes on the first fixing member 52 and the mounting holes on the second fixing member 53 are arranged in a staggered manner, which can facilitate the installation of the bolt assembly 57 of the first fixing member 52 through the clearance holes.

[0059] For example, the first fixing member 52 and the second fixing member 53 are both disc structures, and four mounting holes are opened in the circumferential direction on the first fixing member 52 and the second fixing member 53. The four mounting holes on the first fixing member 52 are staggered with the four mounting holes on the second fixing member 53, and the second fixing member 53 is provided with four clearance holes connected to the four mounting holes on the first fixing member 52, so that the four bolt assemblies 57 used to fix the first fixing member 52 can pass through the clearance holes, thereby realizing the fixed connection between the first fixing member 52 and the connecting arm 2.

[0060] In an exemplary embodiment of the present invention, Figure 1As shown, the connecting arm 2 is provided with a mounting groove 7 for the first fixing member 52 to be embedded, and the fixing seat 1 and the mounting seat 3 are provided with a mounting groove 7 for the second fixing member 53 to be embedded. For example, if the first fixing member 52 and the second fixing member 53 are both disc structures, circular mounting grooves 7 respectively adapted to the first fixing member 52 and the second fixing member 53 are provided on the connecting arm 2, the fixing seat 1, and the mounting seat 3, and the first fixing member 52 and the connecting arm 2 can be installed more conveniently and quickly, and the second fixing member 53 and the fixing seat 1 or the mounting seat 3 can be installed. The installation and disassembly of the rotating shaft mechanism 5 is greatly facilitated, and the disassembly and maintenance efficiency of the support arm is effectively improved.

[0061] Furthermore, the edges of the first fixing member 52 and the second fixing member 53 may be protruding to form lugs, and the mounting holes may be set at the lugs, and the number of the lugs is consistent with the number of the mounting holes. The shape of the mounting groove 7 is compatible with the first fixing member 52 and the second fixing member 53, that is, the first fixing member 52 and the second fixing member 53 will not rotate after being embedded in the mounting groove 7, so that before and during the fixing process using the bolt assembly 57, the position of the first fixing member 52 and the second fixing member 53 can be fixed by the setting of the lugs, and they will not rotate, which further facilitates the installation and removal of the support arm and the damping shaft mechanism 5.

[0062] In an exemplary embodiment of the utility model, a first limiting assembly is provided between the fixed seat 1 and the connecting arm 2, and between the mounting seat 3 and the connecting arm 2, for limiting the rotation angle of the rotating shaft mechanism 5. For example, the first limiting assembly includes a limiting column 21 and a limiting groove 11. The limiting column 21 is fixed to the side of the connecting arm 2 facing the fixed seat 1. When the connecting arm 2 rotates, the limiting column 21 also rotates around the axis of the connecting shaft 51 at the same time; the limiting groove 11 is provided on the side of the fixed seat 1 facing the connecting arm 2, the limiting column 21 is located in the limiting groove 11, and the shape of the limiting groove 11 coincides with the trajectory of the limiting column 21 when rotating. Therefore, when the connecting arm 2 rotates, the limiting column 21 always slides in the limiting groove 11, and by limiting the length of the limiting groove 11, the rotation angle of the connecting arm 2 can be limited.

[0063] The mounting seat 3 and the rotating seat 4 are rotatably connected via a rotating mechanism 6, and the rotating mechanism 6 is described in detail below:

[0064] like Figure 3As shown, the rotating mechanism 6 includes a rotating shaft 61 and a second fastener 62. The rotating shaft 61 is inserted into the mounting seat 3 and the rotating seat 4, and is used to connect the mounting seat 3 and the rotating seat 4. The second fastener 62 is screwed on the mounting seat 3. The through hole of the mounting seat 3 for the rotating shaft 61 to pass through is in an open shape. When the second fastener 62 is screwed, the opening size of the through hole can be driven to change, which is used to change the rotation damping of the rotating shaft 61. Specifically, the mounting seat 3 is provided with a through hole for the rotating shaft 61 to pass through. The through hole is in an open shape, that is, the through hole is not a closed hole. When the second fastener 62 is screwed, the opening size of the through hole can be changed. When the opening becomes smaller, the friction between the rotating shaft 61 and the mounting seat 3 can be increased, thereby increasing the rotation damping between the mounting seat 3 and the rotating seat 4; when the opening becomes larger, the friction between the rotating shaft 61 and the mounting seat 3 becomes smaller, thereby reducing the rotation damping between the mounting seat 3 and the rotating seat 4.

[0065] For example, the mounting seat 3 has a barbed-hook type connector 31, which has a fixed end and a movable end. The fixed end is fixedly connected to the mounting seat 3, and there is a gap between the movable end and the fixed end. The fixed end and the movable end have a smooth transition and form a through hole for the rotating shaft 61 to pass through.

[0066] In an exemplary embodiment of the present invention, the rotating seat 4 includes a connecting plate 41 and an adapter block 42, and the rotating shaft 61 is inserted into the adapter block 42 and fixedly connected to the adapter block 42. For example, the adapter block 42 can be a U-shaped block structure, the connecting plate 41 is fixedly connected to the side opposite to the U-shaped opening of the adapter block 42, and the adapter block 42 is provided with a through hole penetrating the U-shaped opening for the rotating shaft 61 to pass through. The connecting member 31 is arranged in the U-shaped opening of the adapter block 42, and the rotating shaft 61 penetrates the adapter block 42 and the connecting member 31 at the same time, thereby realizing the rotation connection between the mounting seat 3 and the rotating seat 4.

[0067] At the same time, the second fastener 62 can be a bolt, and the second fastener 62 passes through the movable end of the connecting member 31 and is screwed into the fixed end. When the second fastener 62 is screwed, the gap between the movable end and the fixed end can be changed, and then the clamping degree of the connecting member 31 on the rotating shaft 61 can be changed, so as to adjust the rotation damping of the mounting seat 3 and the rotating seat 4.

[0068] Furthermore, the rotating mechanism 6 also includes a damping sleeve 63. The damping sleeve 63 is sleeved on the rotating shaft 61, and the damping sleeve 63 is in an open shape. When the second fastener 62 is screwed, the opening size of the damping sleeve 63 changes. Specifically, the damping sleeve 63 is an annular circular sleeve structure, and an opening is provided on the damping sleeve 63 along the axial direction, so that the inner diameter of the damping sleeve 63 can change within a certain range. When the damping sleeve 63 is sleeved on the rotating shaft 61 and the second fastener 62 is screwed, the opening size of the mounting seat 3 can change, and then the opening size of the damping sleeve 63 can be driven to change, so that the friction between the damping sleeve 63 and the rotating shaft 61 changes, and the rotation damping of the mounting seat 3 and the rotating seat 4 is adjusted. The damping sleeve 63 can prevent the mounting seat 3 from directly abutting against the rotating shaft 61, thereby reducing the friction loss after long-term use.

[0069] In one embodiment of the utility model, a second limit assembly for limiting the rotation angle of the rotating mechanism 6 is provided between the mounting seat 3 and the adapter block 42. For example, the second limit assembly includes a protrusion 32 and a groove 421. The protrusion 32 is fixed to one end of the connecting member 31 close to the rotating seat 4, and the adapter block 42 is provided with a groove 421 on the side facing the mounting seat 3, and the protrusion 32 is located in the groove 421. When the mounting seat 3 and the rotating seat 4 rotate relative to each other, the protrusion 32 always moves in the groove 421, so that the groove 421 can limit the rotation angle of the protrusion 32, thereby limiting the rotation angle of the rotating seat 4 and preventing the rotating seat 4 from rotating too much. In addition, the rotation angle of the rotating seat 4 can be controlled by controlling the position and size of the groove 421.

[0070] The utility model also provides a medical device, including the above-mentioned support arm damping shaft mechanism 5. The medical device can be a ventilator, anesthesia machine, etc., and the display, control screen and other modules of the medical device can be installed on the rotating seat 4 and connected to the host of the medical device through the support arm. The position of the display and other modules can be adjusted through the shaft mechanism 5, and the angle of the display and other modules can be adjusted through the rotating mechanism 6, which is convenient for the staff to operate.

[0071] 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. An arm damping shaft mechanism, characterized in that: The support arm includes a rotating shaft mechanism and a rotating mechanism, and includes a fixed seat, a connecting arm, a mounting seat and a rotating seat. The mounting seat and the connecting arm, and the connecting arm and the mounting seat are rotatably connected through the rotating shaft mechanism, and the mounting seat and the rotating seat are rotatably connected through the rotating mechanism. The rotating shaft mechanism includes: Connecting shaft; A first fixing member, fixedly sleeved on the connecting shaft, wherein the first fixing member is detachably connected to the connecting arm; A second fixing member, movably sleeved on the connecting shaft, the second fixing member being detachably connected to the fixing seat or the mounting seat; A first fastener, screwed onto an end of the connecting shaft close to the second fixing member; Twisting the first fastener can change the friction torque between the first fastener and the second fixing member, so as to change the rotation damping of the connecting shaft; The rotating mechanism comprises: A rotating shaft is passed through the mounting seat and the rotating seat to connect the mounting seat and the rotating seat; A second fastener, screwed onto the mounting seat; The through hole of the mounting seat for the rotating shaft to penetrate is in an open shape, and when the second fastener is screwed, the opening size of the through hole can be driven to change, so as to change the rotation damping of the rotating shaft.

2. The support arm damping shaft mechanism according to claim 1, characterized in that: The rotating shaft mechanism also includes: A shaft sleeve, which is movably mounted on the connecting shaft, and is located between the first fixing member and the second fixing member; A gasket is fixedly sleeved on the connecting shaft, and the gasket is located between the second fixing member and the first fastening member.

3. The support arm damping shaft mechanism according to claim 1, characterized in that: The rotating seat includes a connecting plate and an adapter block, the rotating shaft is passed through the adapter block and is fixedly connected to the adapter block, and the rotating mechanism also includes: The damping sleeve is sleeved on the rotating shaft, and the damping sleeve is in an open shape. When the second fastener is screwed, the size of the opening of the damping sleeve changes.

4. The support arm damping shaft mechanism 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 first fixing member for the connecting shaft to pass through is adapted to the cross section of the connecting shaft.

5. The support arm damping shaft mechanism according to claim 1, characterized in that: The rotating shaft mechanism also includes: A bolt assembly, wherein the first fixing member is detachably connected to the connecting arm through the bolt assembly, and the second fixing member is detachably connected to the fixing seat or the mounting seat through the bolt assembly; The bolt assemblies of the first fixing member and the second fixing member are both installed from one side of the second fixing member, and a clearance hole for the bolt assembly of the first fixing member to pass through is provided on the second fixing member.

6. The support arm damping shaft mechanism according to claim 5, characterized in that: The first fixing member and the second fixing member are both provided with mounting holes for mounting the bolt assembly at even intervals along the circumferential direction, the mounting holes on the first fixing member and the mounting holes on the second fixing member are staggered, and the mounting holes on the first fixing member are connected to the clearance holes on the second fixing member.

7. The support arm damping shaft mechanism according to claim 1, characterized in that: The connecting arm is provided with a mounting groove for embedding the first fixing member, and the fixing seat and the mounting seat are provided with mounting grooves for embedding the second fixing member.

8. The support arm damping shaft mechanism according to claim 1, characterized in that: A first limiting assembly is provided between the connecting arm and the fixing seat, and between the connecting arm and the mounting seat, for limiting the rotation angle of the rotating shaft mechanism.

9. The support arm damping shaft mechanism according to claim 3, characterized in that: A second limiting component for limiting the rotation angle of the rotating mechanism is arranged between the mounting seat and the adapter block.

10. A medical device, characterized in that: It comprises the support arm damping shaft mechanism as described in any one of claims 1 to 9.

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