Rotating assembly and medical equipment

Abstract

The invention provides a rotating assembly and medical equipment. The rotating assembly comprises a fixing base, a rotating piece, a limiting element and an anti-disengaging piece. The rotating part is arranged in the fixed seat in a penetrating manner and can rotate relative to the fixed seat, the upper end of the rotating part protrudes out of the fixed seat, and a limiting groove is formed in the periphery of the upper end of the rotating part; the limiting element is arranged in the limiting groove and is clamped above the fixed seat; and the anti-falling piece is installed on the fixed seat or the rotating piece, the anti-falling piece is provided with an axial limiting part, and the axial limiting part is located above the limiting element and limits the limiting element in the limiting groove. The medical equipment comprises the rotating assembly. The limiting element can be installed in place, the position of the limiting element is limited, and the connection reliability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a rotating assembly and a medical equipment having the rotating assembly. Background Art

[0002] In medical equipment, there is often a need to connect two structural parts in a manner that allows them to rotate relative to each other. In some related technologies, a rotating assembly including a fixed seat and a rotating member can be provided to achieve the connection between the two structural parts. The rotating member can be rotatably inserted into the fixed seat, and the two structural parts are respectively connected to one of the fixed seat and the rotating member so as to rotate relative to each other. In order to axially limit the rotating member and the fixed seat, a limiting element can be provided on the rotating member. However, during the production and installation process, there may be a phenomenon that the limiting element is not installed in place, which will easily lead to failure of the axial connection between the rotating member and the fixed seat. Summary of the invention

[0003] In view of the above problems, the present invention provides a rotating assembly and a medical device having the rotating assembly to improve connection reliability.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] According to one aspect of the present invention, the present invention provides a rotating assembly, comprising:

[0006] Fixed seat;

[0007] A rotating member is inserted into the fixed seat and can rotate relative to the fixed seat, the upper end of the rotating member protrudes out of the fixed seat, and a limiting groove is provided on the outer periphery of the upper end of the rotating member;

[0008] A limiting element is installed in the limiting groove and clamped above the fixing seat; and

[0009] An anti-slip component is installed on the fixed seat or the rotating component. The anti-slip component is provided with an axial limiting portion. The axial limiting portion is located above the limiting element and limits the limiting element in the limiting groove.

[0010] In some embodiments, the anti-slip component is installed on the upper end surface of the fixed seat, and the anti-slip component is stopped on the outside of the limiting element. The lower end of the axial limiting portion is opposite to the upper surface of the limiting element, and there is a movement gap between the axial limiting portion and the limiting element.

[0011] In some embodiments, the anti-dropping member has a mounting portion, which is mounted on the upper end surface of the fixing seat and is located outside the limiting element.

[0012] In some embodiments, the upper end surface of the fixing seat is provided with a mounting hole, the mounting portion has a fastening hole for connection with a fastener, and the mounting portion is connected to the mounting hole via the fastener.

[0013] In some embodiments, a convex point is protruded from the inner wall of the fastening hole, and when the fastening hole is matched with the fastener, the convex point is located between two adjacent screw threads of the fastener.

[0014] In some embodiments, the axial limiting portion is connected to a side of the mounting portion facing the limiting element.

[0015] In some embodiments, the anti-slip component has a plurality of mounting portions dispersedly arranged on the periphery of the limiting element, and the anti-slip component also has a base connected to the upper end of each mounting portion, and the axial limiting portion protrudes downward from the base.

[0016] In some embodiments, an upper end surface of the fixing seat is provided with a mounting hole, an outer periphery of the mounting portion is provided with threads, and the mounting portion extends into the mounting hole and is screwed to the mounting hole.

[0017] In some embodiments, the axial limiting portion is located at the top of the mounting portion, and the axial limiting portion protrudes from the mounting portion in a circumferential direction of the mounting portion.

[0018] In some embodiments, the movement gap is less than 0.5 mm.

[0019] In some embodiments, the anti-slip component is installed at the upper end of the rotating component, and the axial limiting portion abuts against the limiting element.

[0020] In some embodiments, the anti-dropping member further has a radial limiting portion, which is located outside the limiting element and enables the radial dimension of the limiting element along the fixing seat to be maintained within a predetermined range.

[0021] In some embodiments, there are multiple axial limiting portions, which are dispersedly arranged along the circumference of the limiting element.

[0022] In some embodiments, the axial limiting portion extends along the circumference of the rotating member.

[0023] In some embodiments, the axial limiting portion surrounds the rotating member.

[0024] In some embodiments, the rotating assembly further includes a bayonet pin, which is sleeved on the rotating member and is engaged with the rotating member, and the bayonet pin is located between the fixing seat and the limiting element.

[0025] In some embodiments, a locking hole is provided on the rotating member, and a locking protrusion is protruding from the locking pin, and the locking protrusion is locked in the locking hole.

[0026] According to another aspect of the present invention, the present invention provides a medical device, comprising the rotating assembly as described above.

[0027] In some embodiments, the medical device is a surgical lamp, which includes a spring arm and a lamp head connected to the spring arm, and the spring arm is connected to the rotating part of the rotating assembly.

[0028] The present invention has at least the following advantages: in the rotating assembly of the present invention, the limiting element is limited by an anti-slipping piece installed on the fixed seat or the rotating part, and the limiting element is axially limited from above the limiting element by setting an axial limiting portion. On the one hand, during the installation of the anti-slipping piece, the limiting element that has not been installed in place can be pushed out and installed in the limiting groove, so that the limiting element plays an axial limiting role between the rotating part and the fixed seat, so that the rotating part and the fixed seat maintain a reliable connection; on the other hand, the axial limiting portion stops above the limiting element, which can prevent the limiting element from falling off the rotating part along the axial direction, avoiding the rotating part and the fixed seat from falling off due to the lack of axial limitation, thereby improving the reliability of the connection between the rotating part and the fixed seat.

[0029] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limiting the present application.

[0031] In the drawings of the specification:

[0032] Figure 1 It is a structural schematic diagram of a medical device embodiment of the present invention.

[0033] Figure 2 It is a schematic structural diagram of the first embodiment of the rotating assembly of the present invention.

[0034] Figure 3 yes Figure 2 sectional view of .

[0035] Figure 4 yes Figure 2 Schematic diagram of the structure of the anti-dropping part.

[0036] Figure 5 It is a schematic structural diagram of the second embodiment of the rotating assembly of the present invention.

[0037] Figure 6 yes Figure 5 Schematic diagram of the structure in which the middle latch is separated from the rotating part.

[0038] Figure 7 It is a schematic structural diagram of the third embodiment of the rotating assembly of the present invention.

[0039] Figure 8 yes Figure 7 sectional view of .

[0040] Fig. 9 yes Figure 7 3D exploded view of .

[0041] Fig.10 It is a schematic structural diagram of a fourth embodiment of a rotating assembly of the present invention.

[0042] Fig.11 yes Fig.10 sectional view of .

[0043] Fig.12 yes Fig.10 3D exploded view of .

[0044] The reference numerals in the above drawings are described as follows:

[0045] 1. Spring arm; 2. Lamp holder; 3. Rotating body; 4. Rotating assembly;

[0046] 41, fixing seat; 411, center hole; 412, lateral hole; 413, upper end surface; 414, mounting hole;

[0047] 42, rotating member; 421, limiting groove; 422, connecting hole; 423, snap-fit ​​hole;

[0048] 43, limiting element; 43a, first limiting element; 43b, second limiting element;

[0049] 44, anti-dropping member; 441, axial limiting portion; 442, mounting portion; 4421, fastening hole; 4423, thread; 443, radial limiting portion; 444, base;

[0050] 45. Fasteners;

[0051] 46. ​​Gasket;

[0052] 47. Bayonet pin; 471. Snap-on protrusion. DETAILED DESCRIPTION

[0053] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0054] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0055] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0056] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0057] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0058] Without further limitations, in this application, the words "include", "comprises", "has" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0059] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0060] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0061] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0062] See also Figure 1 According to some embodiments of the present invention, the present invention provides a medical device, specifically Figure 1 In the structure shown, the medical device is a surgical lamp, which mainly includes a spring arm 1, a lamp head 2 connected to one end of the spring arm 1, a rotating body 3 connected to the other end of the spring arm 1, and a rotating assembly 4 connected between the spring arm 1 and the rotating body 3. The rotating body 3 is suspended from the ceiling. The rotating assembly 4 is between the spring arm 1 and the rotating body 3, so that the spring arm 1 and the rotating body 3 can rotate relative to each other.

[0063] The specific structural forms of the rotating body 3, the spring arm 1 and the lamp holder 2 can refer to the relevant technology and are not limited here. The spring arm 1 and the lamp holder 2 can be multiple, set according to actual needs, and connected to the rotating body 3 respectively.

[0064] In the present invention, the spring arm 1 and the lamp holder 2 are prevented from falling off the rotating body 3 mainly by improving the rotating assembly 4, thereby reducing the safety risk.

[0065] The feasible structures of the rotating assembly 4 are introduced below through several different embodiments.

[0066] The first embodiment of the rotating assembly:

[0067] See also Figure 2 and Figure 3 The rotating assembly 4 of this embodiment mainly includes a fixed seat 41, a rotating member 42, a limiting element 43 and an anti-slip member 44. The rotating member 42 is inserted into the fixed seat 41 and can rotate relative to the fixed seat 41. The upper end of the rotating member 42 protrudes out of the fixed seat 41, and a limiting groove 421 is provided on the outer periphery of the upper end of the rotating member 42. The limiting element 43 is installed in the limiting groove 421 and clamped above the fixed seat 41. The anti-slip member 44 is installed on the fixed seat 41, and the anti-slip member 44 is provided with an axial limiting portion 441, which is located above the limiting element 43 and limits the limiting element 43 in the limiting groove 421.

[0068] The fixing seat 41 is cylindrical, and a central hole 411 is provided in the middle thereof, which passes through the fixing seat 41 from top to bottom. The central hole 411 is a stepped hole, that is, different positions of the central hole 411 may have different apertures along the axial direction of the fixing seat 41, so as to facilitate the adaptation of the structural parts to be installed at the corresponding positions. For example, a bearing (not shown in the figure) may be installed in the central hole 411 to facilitate the relative rotation between the fixing seat 41 and the rotating member 42. In addition, a stopper (not shown in the figure) for limiting the bearing may also be installed.

[0069] The side of the fixed seat 41 is provided with a plurality of lateral holes 412, which can be used for connecting the fixed seat 41 with other structural parts such as the rotating body 3, and can also be used for installing a damping mechanism (not shown in the figure) to control the rotational resistance between the fixed seat 41 and the rotating part 42, etc.

[0070] Preferably, in this embodiment, the upper end surface 413 of the fixing seat 41 is provided with two mounting holes 414 arranged on both sides of the center hole 411 for mounting the anti-dropping member 44. It should be noted that the number of the mounting holes 414 is not limited to two, and can be one or more. Corresponding to different mounting methods of the anti-dropping member 44, in some variant embodiments, the mounting holes 414 can also be omitted.

[0071] The rotating member 42 is a circular shaft structure, which is inserted into the center hole 411 of the fixed seat 41. The rotating member 42 and the fixed seat 41 can achieve relative rotation through a bearing, or can achieve relative rotation through direct clearance fit. The rotation axis of the rotating member 42 is its own axis, which is also roughly coaxial with the center axis of the center hole 411. In this embodiment, the rotating member 42 is a hollow structure, which can be used to pass wires, etc.

[0072] The length of the rotating member 42 is greater than that of the fixed seat 41, and the upper and lower ends of the rotating member 42 both extend beyond the fixed seat 41. A connecting hole 422 is provided on the outer periphery of the lower end of the rotating member 42, which can be connected to a structural member connected to the rotating member 42, such as the spring arm 1; of course, the connecting hole 422 is not necessary, and a suitable connection method can be set according to the actual structure to be connected. In this embodiment, two limit grooves 421 are provided on the outer periphery of the upper end of the rotating member 42, which can be used to install two limit elements 43 respectively.

[0073] The limiting element 43 is clamped in the limiting groove 421 of the rotating member 42, and plays the role of axially limiting the rotating member 42. The limiting element 43 is an annular structure with an opening, which can be elastically deformed and can be opened and elastically closed. The limiting element 43 can be selected from standard parts or special-shaped parts of suitable sizes according to needs. For example, in this embodiment, the limiting element 43 is a retaining spring. During assembly, the limiting element 43 can be opened and sleeved on the rotating member 42 with a suitable tool, and then installed in the limiting groove 421. After the tool is removed, the limiting element 43 will automatically elastically recover and be clamped in the limiting groove 421. When installed in place, the limiting element 43 is entirely located in the limiting groove 421. In a non-ideal state, the limiting element 43 may be tilted so that a portion of the structure is located outside the limiting groove 421. The portion of the structure outside the limiting groove 421 will be directly connected to the outer wall of the rotating member 42. At this time, the limiting element 43 is not properly installed. This non-ideal state should be avoided in actual use.

[0074] When the limiting element 43 is engaged in the limiting groove 421, the outer diameter of the limiting element 43 is larger than the diameter of the center hole 411 of the fixing seat 41 at the upper end surface 413, that is, the limiting element 43 cannot enter the center hole 411, and the limiting element 43 will be stuck on the upper end surface 413 of the fixing seat 41 to prevent the rotating member 42 from falling downward relative to the fixing seat 41. At the same time, the limiting element 43 will bear the weight load of the rotating member 42 and the structural member connected thereto. A gasket 46 can also be arranged between the limiting element 43 and the upper end surface 413 of the fixing seat 41.

[0075] In this embodiment, corresponding to the two limiting grooves 421 on the rotating member 42, the number of limiting elements 43 is also two, each of which is engaged in one limiting groove 421. The two limiting elements 43 form a double insurance, and when the lower limiting element 43 fails, the upper limiting element 43 can work. For the convenience of description, when it is necessary to distinguish and introduce the two limiting elements 43 in the following text, the limiting element 43 located at the upper side is referred to as the first limiting element 43a, and the limiting element 43 located at the lower side is referred to as the second limiting element 43b. It should be noted that in actual use, only one limiting element 43 may be provided.

[0076] See also Figures 2 to 4 The anti-slip component 44 is installed on the upper end surface 413 of the fixing seat 41 through the fastener 45. The anti-slip component 44 stops on the outer side of the limiting element 43 to form an axial limit for the limiting element 43. More preferably, the anti-slip component 44 forms an axial limit and a radial limit for the limiting element 43.

[0077] Specifically, the anti-slip member 44 has two dispersed mounting portions 442, the mounting portion 442 has a fastening hole 4421 for the fastener 45 to connect, and the mounting portion 442 is connected to the mounting hole 414 on the fixing seat 41 through the fastener 45. The anti-slip member 44 is mounted on the fixing seat 41 by the fastener 45, which is convenient for installation and removal. When the anti-slip member 44 is mounted on the fixing seat 41, the mounting portion 442 is located on the outer side of the limiting element 43. The fastener 45 can be a screw.

[0078] Preferably, the inner wall of the fastening hole 4421 is provided with a protruding point (not shown in the figure). The setting of the protruding point makes the aperture where the protruding point is located slightly smaller than the outer diameter of the fastener 45. More specifically, when the fastening hole 4421 cooperates with the fastener 45, the protruding point is higher than the top of the screw thread of the external thread on the fastener 45 and lower than the bottom of the screw thread, that is, the protruding point is located between two adjacent screw threads. In this way, when the fastener 45 is rotated, the protruding point can pass between the two screw threads of the fastener 45 without affecting the cooperation between the fastener 45 and the fastening hole 4421. However, if under the action of external pulling force, the fastener 45 cannot be pulled out of the fastening hole 4421 because the thread is blocked by the protruding point. The protruding point can be a point-like structure or a strip-like structure with a certain extension length. The cross-section of the protruding point can be circular, semicircular, elliptical, etc. The number of the protruding points can be one or more, and the distribution of the protruding points is not limited.

[0079] In this embodiment, the axial limiting portion 441 is connected to the side of the mounting portion 442 facing the limiting element 43, and the axial limiting portion 441 can be aligned with the position of the limiting element 43 through the relative fixed relationship between the mounting portion 442 and the fixing seat 41. The lower end of the axial limiting portion 441 is opposite to the upper surface of the limiting element 43, and there is a movement gap between the axial limiting portion 441 and the limiting element 43. Specifically, in this embodiment, the axial limiting portion 441 is opposite to the first limiting element 43a. The axial limiting portion 441 is located above the first limiting element 43a, and forms an axial limit on the first limiting element 43a, preventing the first limiting element 43a from being installed in place, and limiting the first limiting element 43a in the corresponding limiting groove 421.

[0080] During the assembly process of connecting the mounting portion 442 to the fixing seat 41, if the first limiting element 43a is not installed in place, the axial limiting portion 441 will press against the first limiting element 43a and apply a downward pushing force to the first limiting element 43a, causing the first limiting element 43a to enter the limiting groove 421 downward, and forcibly installing the first limiting element 43a in place.

[0081] It is worth mentioning that in this embodiment, the limiting element 43 is installed from the top of the rotating member 42 to the rotating member 42 during installation. Therefore, the most likely situation in which the limiting element 43 is not installed properly is that a part of the limiting element 43 is stuck on the top of the limiting groove 421, and the limiting element 43 can be pushed and installed in place through the axial limiting portion 441. Since the anti-slip member 44 can only be installed on the fixing seat 41 after the limiting element 43 is installed, it is equivalent to adding an additional step of installing the anti-slip member 44 after installing the limiting element 43, which increases the link of manual intervention. Therefore, the installation defect of the limiting element 43 is easier to be discovered, and then the limiting element 43 can be installed in place through manual intervention.

[0082] Since there is a movement gap between the axial limit portion 441 and the limit element 43, the axial limit portion 441 will not affect the rotation of the limit element 43 and the rotating member 42. The movement gap between the axial limit portion 441 and the limit element 43 can be determined by comprehensively considering the axial matching tolerance of the limit element 43, the rotating member 42 and the fixed seat 41, and can be as small as possible within the allowable range. Optionally, the movement gap between the axial limit portion 441 and the limit element 43 is less than 0.5 mm.

[0083] In this embodiment, the axial limiting portion 441 is in the shape of a rib extending up and down, and protrudes from the side of the mounting portion 442. The two axial limiting portions 441 respectively connected to the two mounting portions 442 are dispersedly arranged along the circumference of the limiting element 43. Ignoring the thickness of the axial limiting portion 441, each axial limiting portion 441 roughly corresponds to a point on the circumference of the limiting element 43. Through the relative rotation between the axial limiting portion 441 and the limiting element 43, the axial limiting portion 441 can play the role of axial limiting the limiting element 43 throughout the entire circumference.

[0084] In other embodiments not shown, the axial limiting portion 441 may also extend a certain length along the circumference of the rotating member 42, and the axial limiting portion 441 may correspond to a circular arc region or the entire circumference of the limiting element 43. In this structure, a single axial limiting portion 441 itself can limit the limiting element 43 of a longer circular arc segment.

[0085] Preferably, in this embodiment, the anti-slip member 44 further has a radial limiting portion 443, which is connected to the side of the mounting portion 442 facing the limiting element 43, and there is also a movement gap between the radial limiting portion 443 and the limiting element 43. The movement gap between the radial limiting portion 443 and the limiting element 43 can be determined according to the matching tolerance of the rotating member 42 and the fixing seat 41 in the radial direction. When the tolerance matching allows, the movement gap is as small as possible.

[0086] When the limiting element 43 is opened due to abnormal force, the radial limiting portion 443 can prevent the limiting element 43 from further opening, so that the radial dimension of the limiting element 43 along the fixed seat 41 is maintained within a predetermined range, and the limiting element 43 is prevented from being loosened from the rotating member 42 in the radial direction. At the same time, since there is a movement gap between the radial limiting portion 443 and the limiting element 43, when the limiting element 43 rotates with the rotating member 42, the radial limiting portion 443 does not affect the rotation of the limiting element 43 and the rotating member 42. The above-mentioned "predetermined range" can be understood as: when the limiting element 43 is opened within this range, the opening size of the limiting element 43 is always smaller than the diameter of the upper limit groove 421 of the rotating member 42, so that the limiting element 43 cannot be separated from the limiting groove 421.

[0087] In this embodiment, the radial limiting portion 443 is in the shape of a rib extending up and down, and protrudes from the side of the mounting portion 442. The radial limiting portion 443 is connected to the axial limiting portion 441 in the up and down direction, and the radial limiting portion 443 is located below the axial limiting portion 441, and the axial limiting portion 441 protrudes more from the mounting portion 442 than the radial limiting portion 443. The radial limiting portion 443 has a radial limiting function for both limiting elements 43 of this embodiment. It should be noted that the shape of the radial limiting portion 443 is not limited to the strip structure shown in the figure, and can also extend a length along the circumference of the limiting element 43 so as to surround at least a section of the arc area of ​​the limiting element 43 on the outside of the limiting element 43.

[0088] There is no limit to the number of radial limiting parts 443. Since there is relative rotation between the radial limiting parts 443 and the limiting element 43, even if the radial limiting parts 443 are only arranged corresponding to a certain point on the circumference of the limiting element 43, through relative rotation, the radial limiting parts 443 can play a role of radial limiting on the entire circumference of the limiting element 43.

[0089] In some embodiments not shown, the radial limiting portion 443 may not be additionally provided. Since the mounting portion 442 of the anti-slip component 44 is mounted to the upper end surface 413 of the fixing seat 41, the mounting portion 442 will inevitably stop on the outer side of the limiting element 43. The side of the mounting portion 442 facing the limiting element 43 can play the role of the radial limiting portion 443. The mounting portion 442 can play a certain radial limiting role on the limiting element 43.

[0090] Main references Figure 4 The anti-slip member 44 also has a base 444 connected to the upper ends of the two mounting portions 442, and the axial limit portion 441 protrudes downward from the base 444. In this embodiment, the two mounting portions 442 and the axial limit portion 441 are connected together through the base 444 to form an integral structure, which is more convenient for maintaining the positional relationship between the structural parts and facilitating assembly. The anti-slip member 44 can be integrally molded by plastic injection molding.

[0091] In this embodiment, the anti-slip member 44 as an integral structure is installed on the upper end face 413 of the fixed seat 41 through the fastener 45, and the installation is convenient, simple and reliable. Because the fixed seat 41 has a larger outer diameter than the rotating member 42, using the upper end face 413 of the fixed seat 41 as the installation position of the anti-slip member 44 has greater flexibility and convenience. As other alternatives, the anti-slip member 44 can also be fixed to the upper end face 413 of the fixed seat 41 by welding, plugging, clamping, etc.

[0092] The limiting element 43 can be installed in place and limited in position by the anti-dropping member 44, so that a reliable axial limit is formed between the rotating member 42 and the fixing seat 41, preventing the rotating member 42 from falling from the fixing seat 41, thereby improving the connection reliability.

[0093] The second embodiment of the rotating assembly:

[0094] See also Figure 5 and Figure 6 In the rotating assembly 4 of the second embodiment, a latch 47 is added compared to the first embodiment.

[0095] In this embodiment, the latch 47 is sleeved on the rotating member 42 and is engaged with the rotating member 42. The latch 47 is located between the fixed seat 41 and the first limiting element 43a. The latch 47 is arranged below the first limiting element 43a. In other feasible embodiments, the latch 47 can also be arranged below the second limiting element 43b; or the latch 47 can be arranged below the first limiting element 43a and below the second limiting element 43b.

[0096] Specifically, the bayonet 47 is annular, and a clamping protrusion 471 is protruding from the inner side of the bayonet 47. A clamping hole 423 is provided on the rotating member 42. In this embodiment, the clamping hole 423 communicates with the limiting groove 421 clamped by the first limiting element 43a. The clamping protrusion 471 of the bayonet 47 is clamped in the clamping hole 423.

[0097] When installing, the latch 47 is firstly sleeved on the rotating member 42 at an angle, with the side where the engaging protrusion 471 is downward, so that the engaging protrusion 471 extends into the engaging hole 423 to form an engaging connection, and then the other side is pressed downward until it is installed in place.

[0098] The latch 47 can support the rotating member 42 so as not to fall off from the fixing seat 41 , and can play a role of insurance when the limiting element 43 fails, thereby preventing the rotating member 42 from falling off, and further improving safety.

[0099] The structures and matching relationships of the fixing seat 41 , the rotating member 42 , the limiting element 43 and the anti-slip member 44 of this embodiment can refer to the first embodiment and will not be described in detail here.

[0100] The third embodiment of the rotating assembly:

[0101] See also Figures 7 to 9 The main difference between the rotating assembly 4 of the third embodiment and the first embodiment is that the structure of the anti-dropping member 44 is different.

[0102] In this embodiment, the anti-slip member 44 is directly mounted on the upper end face 413 of the fixing seat 41, and is stopped on the outer side of the limiting element 43. Specifically, the outer periphery of the mounting portion 442 of the anti-slip member 44 is provided with a thread 4423, and the mounting portion 442 extends into the mounting hole 414 of the upper end face 413 of the fixing seat 41, and the mounting portion 442 is directly screwed and fixed with the mounting hole 414. At this time, the mounting portion 442 also forms a radial limiting effect on the limiting element 43 on the outer side of the limiting element 43, and the mounting portion 442 forms a radial limiting portion 443 on the side facing the limiting element 43, so that the radial dimension of the limiting element 43 along the fixing seat 41 is kept within a predetermined range.

[0103] The axial limiting portion 441 is located at the top of the mounting portion 442, and the axial limiting portion 441 protrudes from the mounting portion 442 in the circumferential direction of the mounting portion 442. The outer diameter of the axial limiting portion 441 is larger than the diameter of the mounting portion 442. When the mounting portion 442 is screwed into the mounting hole 414, it can ensure that the lower end of the axial limiting portion 441 is opposite to the upper surface of the limiting element 43. Similarly, since the axial limiting portion 441 and the limiting element 43 are opposite to each other up and down, during the process of installing the anti-slip component 44, if the limiting element 43 is not installed in place, the axial limiting portion 441 can be used to push the limiting element 43 to the limiting groove 421 and install it in place. When the limiting element 43 is installed in place, the axial limiting portion 441 plays a role in axially limiting the limiting element 43, and restricts the limiting element 43 in the limiting groove 421.

[0104] Since the anti-slip member 44 and the limiting element 43 can rotate relative to each other, when only one anti-slip member 44 is provided, the axial limiting and radial limiting functions can be provided along the entire circumference of the limiting element 43. There is a movement gap between the axial limiting portion 441 and the radial limiting portion 443 and the limiting element 43, and the specific description of the movement gap refers to the first embodiment.

[0105] In this embodiment, the upper end surface 413 of the fixing seat 41 is provided with two mounting holes 414, and correspondingly, each of the mounting holes 414 can be connected with an anti-slip member 44. Of course, the number of the anti-slip members 44 is not limited to one or two, and can be selected according to actual conditions in actual use. When multiple anti-slip members 44 are provided, each anti-slip member 44 is dispersedly arranged around the circumference of the limiting element 43.

[0106] According to the structure of the anti-slip member 44 shown in the figure of this embodiment, screws of appropriate specifications can be selected as the anti-slip member 44. In addition, the anti-slip member 44 can also be a structure of other forms, such as the axial limiting portion 441 and the mounting portion 442 can form an inverted L-shaped or T-shaped structure. In addition, the axial limiting portion 441 can also extend a section or a whole circle along the circumference of the limiting element 43. The anti-slip member 44 is installed on the fixed seat 41 through the mounting portion 442, and the axial limiting portion 441 protrudes from the mounting portion 442 and is opposite to the limiting element 43 up and down. The connection between the mounting portion 442 and the fixed seat 41 is not limited to screw connection. In some feasible methods, welding, plug-in, etc. can also be used.

[0107] In this embodiment, the structures and matching relationships of the fixing seat 41, the rotating member 42 and the limiting element 43 can refer to the first embodiment, and will not be repeated here. It is worth mentioning that the rotating assembly 4 of this embodiment can also be added with a bayonet 47 as in the second embodiment, and the specific setting method of the bayonet 47 refers to the above-mentioned second embodiment.

[0108] The fourth embodiment of the rotating assembly:

[0109] See also Figures 10 to 12 The main difference between the rotating assembly 4 of the fourth embodiment and the first embodiment lies in the structure and installation position of the anti-dropping member 44.

[0110] In this embodiment, the anti-slip member 44 is installed at the upper end of the rotating member 42, and the axial limiting portion 441 of the anti-slip member 44 pushes against the limiting element 43. During the installation of the anti-slip member 44 on the rotating member 42, the limiting element 43 that has not been installed in place can be pushed to make the limiting element 43 enter the limiting groove 421. After being installed in place, the axial limiting portion 441 of the anti-slip member 44 pushes against the limiting element 43, the anti-slip member 44 and the limiting element 43 are relatively stationary, and the axial limiting portion 441 limits the limiting element 43 from axially disengaging, so that the limiting element 43 is limited in the limiting groove 421.

[0111] The anti-slip member 44 is in the shape of a cover as a whole, and is covered on the upper end of the rotating member 42 as a whole. The axial limiting portion 441 surrounds the rotating member 42, and completely abuts against the limiting element 43 in the entire circumference of the limiting element 43. Further, the anti-slip member 44 also has a radial limiting portion 443 extending downward from the axial limiting portion 441, and the radial limiting portion 443 is circumferentially located on the outside of the limiting element 43, and the radial limiting portion 443 also abuts against the limiting element 43, forming a radial limit for the limiting element 43 to prevent the limiting element 43 from opening. From the inner side of the anti-slip member 44, a gap is formed between the axial limiting portion 441 and the radial limiting portion 443, and the gap abuts against the outside of the limiting element 43.

[0112] The anti-slip member 44 can be connected to the rotating member 42 by threaded matching, that is, the anti-slip member 44 is provided with an internal thread, and the rotating member 42 is provided with an external thread, and the two are threadedly connected together. Alternatively, screw holes can be provided on the anti-slip member 44 and the rotating member 42, respectively, and the two are connected together by screws. In other feasible ways, the anti-slip member 44 can also be interference-fitted, welded, or plugged with the rotating member 42, etc.

[0113] In this embodiment, the other structures and matching relationships of the fixing seat 41, the rotating member 42 and the limiting element 43 can refer to the first embodiment, and will not be repeated here. The rotating assembly 4 of this embodiment can also be added with a bayonet 47 as in the second embodiment, and the specific setting method of the bayonet 47 refers to the above-mentioned second embodiment.

[0114] The typical structural mode of the rotating assembly 4 is introduced through the above-mentioned several embodiments. Generally speaking, in the rotating assembly 4 of the present invention, the limiting element 43 is limited by the anti-slipping member 44 installed on the fixed seat 41 or the rotating member 42. Specifically, by setting the axial limiting portion 441, the limiting element 43 is axially limited from the top of the limiting element 43. On the one hand, during the installation process of the anti-slipping member 44, the limiting element 43 that has not been installed in place can be pushed out, and the limiting element 43 can be installed in the limiting groove 421, so that the limiting element 43 plays an axial limiting role between the rotating member 42 and the fixed seat 41, so that the rotating member 42 and the fixed seat 41 maintain a reliable connection; on the other hand, the axial limiting portion 441 stops above the limiting element 43, which can prevent the limiting element 43 from falling off the rotating member 42 along the axial direction, avoid the rotating member 42 and the fixed seat 41 from falling off due to the lack of axial limiting, and improve the reliability of the connection between the rotating member 42 and the fixed seat 41.

[0115] For the surgical lamp using the above-mentioned rotating assembly 4, the rotating body 3 of the surgical lamp can be fixedly connected to the fixed seat 41 by sleeve connection or other feasible connection methods, and the spring arm 1 of the surgical lamp is connected to the lower end of the rotating member 42, so that the spring arm 1 and the lamp head 2 can rotate relative to the rotating body 3. The limiting element 43 installed at the upper end of the rotating member 42 will bear the weight load of the rotating member 42, the spring arm 1, and the lamp head 2. Since the rotating assembly 4 promotes the installation of the limiting element 43 and limits the position of the limiting element 43 through the anti-dropping member 44, the limiting element 43 can be reliably installed in the limiting groove 421 and bear the corresponding load, effectively preventing the spring arm 1 and the lamp head 2 from falling, thereby improving the safety of the surgical lamp.

[0116] The rotating assembly 4 of the present invention is particularly suitable for structures in which the limiting element 43 needs to bear an axial load. In addition to surgical lights, the rotating assembly 4 can be adaptively applied to other medical devices having the structure.

[0117] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A rotating assembly, characterized in that: include: Fixed seat; A rotating member is inserted into the fixed seat and can rotate relative to the fixed seat, the upper end of the rotating member protrudes out of the fixed seat, and a limiting groove is provided on the outer periphery of the upper end of the rotating member; A limiting element is installed in the limiting groove and clamped above the fixing seat; and An anti-slip component is installed on the fixed seat or the rotating component. The anti-slip component is provided with an axial limiting portion. The axial limiting portion is located above the limiting element and limits the limiting element in the limiting groove.

2. The rotating assembly according to claim 1, characterized in that: The anti-slip component is installed on the upper end surface of the fixing seat, and the anti-slip component is stopped on the outside of the limiting element. The lower end of the axial limiting portion is opposite to the upper surface of the limiting element, and there is a movement gap between the axial limiting portion and the limiting element.

3. The rotating assembly according to claim 2, characterized in that: The anti-dropping member has a mounting portion, which is mounted on the upper end surface of the fixing seat and is located outside the limiting element.

4. The rotating assembly according to claim 3, characterized in that: The upper end surface of the fixing seat is provided with a mounting hole, the mounting portion has a fastening hole for connection with a fastener, and the mounting portion is connected to the mounting hole through the fastener.

5. The rotating assembly according to claim 4, characterized in that: The inner wall of the fastening hole is protruded with a convex point, and when the fastening hole is matched with the fastener, the convex point is located between two adjacent screw threads of the fastener.

6. The rotating assembly according to claim 3, characterized in that: The axial limiting portion is connected to a side of the mounting portion facing the limiting element.

7. The rotating assembly according to claim 3, characterized in that: The anti-slipping member has a plurality of mounting portions dispersedly arranged on the periphery of the limiting element, and the anti-slipping member also has a base connected to the upper end of each mounting portion, and the axial limiting portion protrudes downward from the base.

8. The rotating assembly according to claim 3, characterized in that: The upper end surface of the fixing seat is provided with a mounting hole, the outer periphery of the mounting portion is provided with threads, and the mounting portion extends into the mounting hole and is screwed with the mounting hole.

9. The rotating assembly according to claim 8, characterized in that: The axial limiting portion is located at the top of the mounting portion, and the axial limiting portion protrudes from the mounting portion in a circumferential direction of the mounting portion.

10. The rotating assembly according to claim 2, characterized in that: The movement gap is less than 0.5 mm.

11. The rotating assembly according to claim 1, characterized in that: The anti-dropping member is installed on the upper end of the rotating member, and the axial limiting portion abuts against the limiting element.

12. The rotating assembly according to any one of claims 1 to 11, characterized in that: The anti-dropping member further comprises a radial limiting portion, which is located outside the limiting element and enables the radial dimension of the limiting element along the fixing seat to be maintained within a predetermined range.

13. The rotating assembly according to any one of claims 1 to 11, characterized in that: The number of the axial limiting portions is multiple and they are dispersedly arranged along the circumference of the limiting element.

14. The rotating assembly according to any one of claims 1 to 11, characterized in that: The axial limiting portion extends along the circumferential direction of the rotating member.

15. The rotating assembly according to claim 14, characterized in that: The axial limiting portion surrounds the rotating member.

16. The rotating assembly according to any one of claims 1 to 11, characterized in that: The rotating assembly further comprises a bayonet pin, which is sleeved on the rotating member and is engaged with the rotating member, and the bayonet pin is located between the fixing seat and the limiting element.

17. The rotating assembly according to claim 16, characterized in that: The rotating member is provided with a clamping hole, the clamping pin is provided with a clamping protrusion, and the clamping protrusion is clamped in the clamping hole.

18. A medical device, characterized in that: Comprising a rotating assembly as described in any one of claims 1-17.

19. The medical device according to claim 18, characterized in that The medical device is a surgical lamp, which comprises a spring arm and a lamp head connected to the spring arm, and the spring arm is connected to the rotating part of the rotating assembly.

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