Rotary dental chair frame and dental chair

Abstract

The present application relates to the technical field of medical apparatus, in particular to a rotating dental chair frame and a dental chair, the rotating dental chair frame comprising: a rotating support fixedly connected with a bottom frame; the rotating support is installed in a rotating hole of a cushion frame and forms a rotating connection with the cushion frame; a sliding groove opened in a side wall of the rotating support and an inner wall of the rotating hole enclose a locking cavity; a locking assembly is installed on the rotating support, the locking assembly comprising an eccentric part, an elastic part and a sliding assembly arranged between the eccentric part and the elastic part; when the cushion frame is in a locked state, rotating the eccentric part can drive the sliding assembly to move towards a direction away from the elastic part, so that the sliding assembly is extruded by the elastic part and abuts against the inner wall of the locking cavity to restrict the rotation of the cushion frame; the rotating support and the locking assembly are both arranged inside the rotating dental chair frame, thus reducing the occupied volume of the rotating dental chair frame, making the overall layout compact and beautiful, ensuring the smooth installation of other parts in the rotating dental chair frame and avoiding interference.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a rotating dental chair frame and dental chair. Background Technology

[0002] A dental chair is an essential piece of medical equipment for dentists, primarily used for oral surgery and the examination and treatment of oral diseases. Currently, a dental chair frame typically consists of a seat frame and a base frame. The seat frame holds the seat cushion, backrest, etc., while the base frame supports the entire seat frame. The base frame and seat frame can be connected in two ways: fixed and movable. The movable connection offers the advantage of easy adjustment and flexibility. With the movable connection, the seat frame can rotate around the base frame. After rotating the seat frame to the desired position, it can be secured to the base frame to prevent rotation during use.

[0003] The existing fixed seat frame and base frame design involves a locking handle between the seat frame and base frame. The locking handle protrudes from the side of the dental chair frame, allowing the user to manually lock and unlock it. This protruding locking handle structure occupies a lot of space, affecting the installation of other components on the dental chair frame and even causing interference. Furthermore, the protruding locking handle structure also affects the aesthetics of the dental chair frame. In addition, the manual locking and unlocking method is laborious and difficult to control the force, which can easily lead to unreliable locking due to insufficient force or damage to the locking handle due to excessive force. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a rotating dental chair frame and dental chair to solve the problems of existing rotating connection of seat frame and base frame to achieve locking and unlocking through locking handle. The locking handle is set out to protrude from the side wall of the dental chair frame, which has the problems of occupying a lot of space, affecting the installation of other parts on the dental chair frame and even causing interference, and the structure of the protruding locking handle also affects the aesthetics of the dental chair.

[0005] A first aspect of the present invention provides a rotating dental chair frame, wherein the rotating dental chair frame comprises:

[0006] Base frame;

[0007] The seat frame has a rotating hole;

[0008] A rotating support is fixedly connected to the base frame; the rotating support is installed in the rotating hole and rotatably connected to the seat cushion frame; a sliding groove is provided on the side wall of the rotating support, and the sliding groove and the inner wall of the rotating hole form a locking cavity;

[0009] A locking assembly is installed on the rotating support. The locking assembly includes an eccentric member, a sliding assembly, and an elastic member. The sliding assembly is disposed between the eccentric member and the elastic member. Rotating the eccentric member can drive the sliding assembly to move in a direction closer to or away from the elastic member.

[0010] When the seat cushion is in the locked state, the sliding component moves away from the elastic element, causing the sliding component to be pressed against the inner wall of the locking cavity by the elastic element, thereby restricting the rotation of the seat cushion.

[0011] Preferably, the rotating support has a first hole extending in a first direction, a second hole extending in a second direction, and a third hole extending in a third direction.

[0012] One end of the second hole is connected to the first hole, and the third hole is located at the intersection of the first hole and the second hole;

[0013] The eccentric component is disposed at the first hole; the elastic component is disposed at the second hole and extends and retracts along the second direction; the sliding component is disposed at the third hole and the rotating hole is disposed at both ends of the third hole in the third direction.

[0014] Preferably, the third hole is formed as an oblong hole structure extending along the second direction, so as to allow the sliding assembly to reciprocate along the second direction.

[0015] Preferably, the sliding component includes:

[0016] The connector is formed as a rod-shaped structure extending along the third direction;

[0017] A sliding member is sleeved on the outer wall of the connector, and the two ends of the sliding member in the second direction respectively abut against the eccentric member and the elastic member;

[0018] A locking element is disposed at both ends along the length of the connector, and the sidewall of the locking element can abut against the cavity wall of the locking cavity.

[0019] Preferably, the sliding groove is formed as a V-shaped groove structure with a first included angle, the V-shaped groove structure extends along the second direction near the groove wall of the elastic member, the first included angle is an obtuse angle, and the second included angle between the groove wall of the V-shaped groove structure near the eccentric member and the hole wall of the rotating hole is set to an acute angle.

[0020] When the seat frame is locked, the locking element is clamped within the second included angle.

[0021] Preferably, the locking member and the connecting member are connected with a clearance fit, and when the sliding assembly moves away from the elastic member, the distance between the locking member and the connecting member gradually decreases.

[0022] Preferably, the eccentric component includes an eccentric shaft and mounting portions disposed at both ends of the eccentric shaft in the axial direction, with a portion of the mounting portions protruding radially along the eccentric shaft; the eccentric shaft is formed as a cam structure.

[0023] Preferably, the sliding assembly further includes a first limiting member and a second limiting member disposed on the rotating support, the first limiting member and the second limiting member being respectively sleeved on the two mounting portions.

[0024] Preferably, the rotating dental chair frame further includes:

[0025] A driving element having a driving end connected to the eccentric element, the driving element being electrically controlled;

[0026] The base frame is provided with a receiving component at its top, and the rotating support is fixedly mounted on the top of the receiving component. The bottom of the rotating support is formed with a mounting groove for mounting the driving component.

[0027] A second aspect of the present invention provides a dental chair, including the rotating dental chair frame described in any of the above technical solutions.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] The rotating dental chair frame of this invention uses a rotating eccentric component to drive a sliding component to move in a direction closer to or further away from an elastic component. When the sliding component moves away from the elastic component, it is pressed by the elastic component and abuts against the inner wall of the locking cavity to restrict the rotation of the seat frame, thereby locking the seat frame. A rotating support with a locking component is installed in a rotating hole on the seat component, so that both the rotating support and the locking component are located inside the rotating dental chair frame. This reduces the volume occupied by the rotating dental chair frame, making the overall layout of the dental chair compact and aesthetically pleasing, ensuring the smooth installation of the rotating dental chair frame and other components in the dental chair, and avoiding interference.

[0030] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the rotating dental chair frame in a locked state provided for an embodiment of the present invention;

[0033] Figure 2 for Figure 1 Structural cross-sectional view from a specific perspective;

[0034] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0035] Figure 4 A top sectional view of the rotating dental chair frame in a locked state, provided for an embodiment of the present invention;

[0036] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0037] Figure 6 A schematic diagram of the rotating structure of the seat cushion frame in the unlocked state of the rotating tooth chair frame provided in an embodiment of the present invention;

[0038] Figure 7 for Figure 6 A cross-sectional view of the rotating support and locking assembly from a visual perspective;

[0039] Figure 8 A top sectional view of the rotating dental chair frame in the unlocked state, provided for an embodiment of the present invention;

[0040] Figure 9 for Figure 8 Enlarged structural diagram at point C;

[0041] Figure 10 An exploded view of the rotating dental chair frame provided for an embodiment of the present invention;

[0042] Figure 11 for Figure 10 Enlarged structural diagram at point D;

[0043] Figure 12 A structural cross-sectional view of the rotating support in a rotating dental chair frame provided in an embodiment of the present invention;

[0044] Figure 13A perspective view of the rotating support in a rotating dental chair frame provided for an embodiment of the present invention.

[0045] Icons: 10-Base frame; 11-Supporting component; 20-Seat cushion frame; 21-Rotating hole; 30-Rotating support; 31-First hole; 32-Second hole; 33-Third hole; 34-Sliding groove; 35-Mounting groove; 50-Locking cavity; A1-First included angle; A2-Second included angle; 61-Eccentric component; 611-Eccentric rotating shaft; 612-Mounting part; 62-Sliding assembly; 621-Connector; 622-Sliding component; 623-Locking component; 63-Elastic component; 641-First limiting component; 642-Second limiting component; 70-Driver; D1-First direction; D2-Second direction; D3-Third direction. Detailed Implementation

[0046] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0047] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0048] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0049] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0050] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0051] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0052] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0053] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0054] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0055] According to a first aspect of the present invention, a rotating dental chair frame includes a base frame 10, a seat cushion frame 20, a rotating support 30, and a locking assembly.

[0056] The specific structure of the above-described components of the rotating dental chair frame according to this embodiment will be described below.

[0057] In this embodiment, as Figure 1 As shown, the seat frame 20 is mounted above the base frame 10, and the base frame 10 is fixedly installed. The seat frame 20 can rotate relative to the base frame 10 to adjust the angle of the seat frame 20. The seat frame 20 has a rotating hole 21, which is preferably formed as a circular hole structure and located at one end of the length direction of the seat frame 20, so that the seat frame 20 can rotate in the horizontal direction.

[0058] Furthermore, in this embodiment, as Figures 1 to 13 As shown, the rotating support 30 is fixedly connected to the base frame 10. The rotating support and the base frame 10 can be fixedly connected by fasteners such as screws or bolts. Specifically, as shown... Figure 10 As shown, the top of the base frame 10 is provided with a support member 11 for supporting the entire seat cushion frame 20. The rotating support 30 is fixedly provided on the top of the support member 11, so that at least part of the rotating support 30 extends out of the end face of the top of the support member 11, so that the rotating support 30 can be installed in the rotating hole 21, and the rotating support 30 and the seat cushion frame 20 are rotatably connected.

[0059] In this embodiment, as Figure 12 and Figure 13 As shown, the main body of the rotating support 30 is formed into a cylindrical structure. A sliding groove 34, recessed radially inward, is provided on the side wall of the rotating support 30. After the rotating support 30 is assembled with the seat frame 20, the sliding groove 34 and the inner wall of the rotating hole 21 form a... Figure 5 and Figure 9 The locking cavity 50 is shown. In a preferred embodiment, two sliding grooves 34 are provided, located at both ends of the rotating support 30 in the radial direction, and two locking cavities 50 are formed accordingly, in order to increase the contact area between the locking assembly and the inner wall of the locking cavity 50, thereby ensuring reliable locking.

[0060] In this embodiment, as Figures 2 to 9 As shown, the locking component is installed on the rotating support 30 and inside the rotating support 30. This reduces the overall volume occupied by the rotating dental chair frame, making the overall layout of the dental chair compact and aesthetically pleasing, and ensuring the smooth installation of other components in the rotating dental chair frame, avoiding interference.

[0061] Specifically, such as Figures 2 to 11As shown, the locking assembly includes an eccentric member 61, a sliding member 62, and an elastic member 63. The sliding member 62 is disposed between the eccentric member 61 and the elastic member 63, and both ends of the sliding member 62 abut against the eccentric member 61 and the elastic member 63, respectively. When the eccentric member 61 rotates, it performs a cam motion, which allows the rotating eccentric member 61 to drive the sliding member 62 to move in a direction closer to or away from the elastic member 63. The eccentric member 61 is a columnar eccentric wheel or other cam structure to increase the contact area between the sliding member 62 and the eccentric member 63. The elastic member 63 is a spring.

[0062] like Figures 2 to 5 As shown, when the sliding component 62 moves away from the elastic element 63, the sliding component 62 is pressed by the elastic element 63 and abuts against the inner wall of the locking cavity 50, causing the normal pressure exerted on the sliding component 62 by the elastic element 63 to increase sharply. This significantly increases the friction between the sliding component 62 and the inner wall of the locking cavity 50, thereby limiting the clockwise or counterclockwise rotation of the seat cushion 20 and thus locking the seat cushion 20. Figures 6 to 9 As shown, when the sliding component 62 moves toward the elastic member 63, the elastic member 63 is compressed and stores energy, and the sliding component 62 separates from the inner wall of the locking cavity 50, so that the seat cushion can rotate clockwise or counterclockwise relative to the rotating support 30, thereby unlocking the seat cushion frame 20 and making it easier to adjust the posture of the seat cushion frame 20.

[0063] Specifically, in this embodiment, such as Figure 3 , Figure 5 , Figure 7 , Figure 9 , Figure 12 and Figure 13 As shown, the rotating support 30 has a first hole 31 extending along a first direction D1, a second hole 32 extending along a second direction D2, and a third hole 33 extending along a third direction D3. An eccentric member 61 is disposed in the first hole 31, an elastic member 63 is disposed in the second hole 32, and a sliding component 62 is disposed in the third hole 33. The second hole 32 is formed as a blind hole structure with a bottom wall. One end of the elastic member 63 abuts against the bottom wall of the second hole 32. The extension and retraction direction of the elastic member 63 is the same as the extension direction of the second hole 32. The end of the second hole 32 away from the bottom wall is connected to the first hole 31. The third hole 33 is disposed at the intersection of the first hole 31 and the second hole 32, so that the first hole 31, the second hole 32, and the third hole 33 are connected to each other. The rotating hole 21 is disposed at both ends of the third hole 33 in the third direction D3.

[0064] In a preferred embodiment, the first direction D1, the second direction D2, and the third direction D3 are arranged perpendicularly to each other. The first direction D1 is parallel to the axis of the rotating support 30, so that the axis of rotation of the eccentric member 61 extends in the vertical direction. The second direction D2 and the third direction D3 extend in the radial direction of the rotating support 30, so that the sliding component 62 applies a uniform force to the two locking cavities 50, thereby ensuring reliable locking.

[0065] Furthermore, in this embodiment, as Figure 12 and Figure 13 As shown, the first hole 31 is formed into a hole structure with a circular cross-section, so that the eccentric member 61 of the column structure can rotate eccentrically in the first hole 31; the elastic member 63 is a cylindrical spring, and the second hole 32 is formed into a hole structure with a circular cross-section, so that the hole wall of the second hole 32 conforms to the cylindrical side wall of the elastic member 63 to limit the radial direction of the elastic member 63, and prevent the elastic member 63 from bending in its length direction when compressed, which would cause the force direction of the elastic member 63 on the sliding component 62 to change; the third hole 33 is formed into a waist-shaped hole structure that extends radially along the second direction D2, so as to form a space for the sliding component 62 to reciprocate along the second direction D2. At this time, the waist-shaped hole has a long strip cross-section.

[0066] Furthermore, in this embodiment, as Figure 3 , Figure 5 , Figure 7 , Figure 9 , Figure 11 As shown, the sliding assembly 62 includes a connector 621, a slider 622, and a locking member 623. Specifically, the connector 621 is formed as a rod-shaped structure extending along the third direction D3 and is disposed in the third hole 33. The slider 622 is formed as a block-shaped structure and is sleeved on the outer wall of the connector 621 to form a detachable fixed connection with the connector 621. By adjusting the length of the slider 622 in the second direction D2 and the elastic coefficient of the elastic member 63, the friction between the sliding assembly 62 and the inner wall of the locking cavity 50 can be adjusted. The connector 621 and the slider 622 can both be formed as cylindrical structures, and the axes of the cylindrical connector 621 and the slider 622 are perpendicular to each other. The two ends of the slider 622 in the second direction D2 abut against the eccentric member 61 and the elastic member 63, respectively.

[0067] In a preferred embodiment, such as Figure 5 and Figure 9As shown, the end of the slider 622 facing the elastic member 63 is formed as a planar structure so that the end of the elastic member 63 can abut against it, increasing the contact area between the slider 622 and the elastic member 63 and ensuring that the elastic member 63 can reliably apply force to the slider 622. The end of the slider 622 facing the eccentric member 61 is formed as a concave arc surface structure to surround the side wall of the eccentric member 61. This increases the contact area between the slider 622 and the eccentric member 61 and avoids severe wear of the slider 622 and / or the eccentric member 61 due to point contact or line contact.

[0068] More specifically, such as Figure 5 , Figure 9 and Figure 11 As shown, the locking member 623 is formed as a block structure with grooves, and is disposed at both ends of the connector 621 along its length. The sidewall of the locking member 623 can abut against the cavity wall of the locking cavity 50. Preferably, the locking member 623 is formed as a cylindrical block structure with its axis extending along the first direction D1, so that the outer wall of the locking member 623 can be tangent to the groove wall of the sliding groove 34 and the inner wall of the rotating hole 21, respectively. This increases the frictional force exerted by the locking member 623 when the rotating chair frame is in the locked state, thereby effectively reducing the incidence of accidental rotation of the seat cushion frame 20 and ensuring the reliability of the locked state.

[0069] In a preferred embodiment, the locking member 623 is made of a rigid material, such as high-strength carbon steel, and the inner wall of the rotating hole 21 has a certain hardness. For example, the inner wall of the rotating hole 21 can be hardened. This improves the ability of the locking member 623 and the inner wall of the rotating hole 21 to resist deformation or damage when they come into contact in the locked state. This ensures reliable locking and also extends the service life of the rotating toothed chair frame.

[0070] In this embodiment, as Figure 13 As shown, the sliding groove 34 is formed as a V-shaped groove structure with a first included angle A1. Specifically, the groove wall of the V-shaped groove structure near the elastic member 63 extends along the second direction D2, and the first included angle A1 is an obtuse angle, so that the second included angle A2 between the groove wall of the V-shaped groove structure near the eccentric member 61 and the hole wall of the rotating hole 21 is as follows: Figure 5 and Figure 9 The acute angle setting is shown; when the seat frame 20 is locked, the locking member 623 is clamped in the second included angle A2. The locking member 623 can be inserted between the groove wall of the sliding groove 34 and the hole wall of the rotating hole 21, and ensure that the side wall of the locking member 623 can abut against the groove wall of the sliding groove 34 and the hole wall of the rotating hole 21 respectively. This causes the positive pressure applied by the locking member 623 to the rotating support 30 and the seat to increase sharply, resulting in a significant increase in friction. This ensures that the seat frame 20 and the rotating support 30 are relatively fixed, so as to achieve reliable locking.

[0071] In a preferred embodiment, such as Figure 5 and Figure 9 As shown, the locking member 623 and the connecting member 621 are connected with a clearance fit, so that the locking member 623 can move to a limited extent along the axial direction of the connecting member 621. When the sliding component 62 moves away from the elastic member 63, the distance between the locking member 623 and the connecting member 621 gradually decreases, so that the locking member 623 can be inserted between the groove wall of the sliding groove 34 and the hole wall of the rotating hole 21 to achieve locking.

[0072] In this embodiment, as Figure 11 As shown, the eccentric component 61 includes an eccentric rotating shaft 611 formed as a cam structure and mounting portions 612 disposed at both ends of the eccentric rotating shaft 611 in the axial direction. Part of the mounting portion 612 protrudes radially along the eccentric rotating shaft 611. The mounting portion 612 is formed as a cylindrical block structure, so that the eccentric rotating shaft 611 can move around the axis of the mounting portion 612 as a cam. The two mounting portions 612 and the eccentric rotating shaft 611 form a columnar structure with a groove structure on the side wall. When the seat cushion frame 20 is in the locked state, the sliding member 622 is embedded in the groove structure formed by the two mounting portions 612 and the eccentric rotating shaft 611.

[0073] Furthermore, in this embodiment, such as Figure 3 , Figure 7 and Figure 11 As shown, the sliding assembly 62 also includes a first limiting member 641 and a second limiting member 642 disposed on the rotating support 30. Both the first limiting member 641 and the second limiting member 642 are formed into annular structures, such that the first limiting member 641 and the second limiting member 642 are respectively sleeved on the two mounting parts 612. The first limiting member 641 is disposed on the top of the eccentric member 61, and the second limiting member 642 is disposed on the bottom of the eccentric member 61. The sidewalls of the ends of the first limiting member 641 and the second limiting member 642 away from the eccentric member 61 form outwardly extending boss structures. The first limiting member 641 and the second limiting member 642 are respectively engaged with the two ends in the length direction of the first hole 31. In this way, the eccentric member 61 can only rotate along the limiting space enclosed by the first limiting member 641 and the second limiting member 642, thereby ensuring that the rotation of the eccentric member 61 will not deviate.

[0074] In a preferred embodiment, such as Figure 3 , Figure 7 , Figure 10 and Figure 11As shown, the rotating dental chair frame also includes a drive component 70. The drive component 70 has a drive end connected to the eccentric component 61, so that the drive component 70 drives the eccentric component 61 to rotate. The drive component 70 is electrically controlled, for example, the drive component 70 is a motor, and the drive end is the output shaft on the motor. In this way, the two states of locking and unlocking of the rotating dental chair frame can be realized by electric control. It has the advantages of convenient operation, labor saving, and precise control, and solves the problem of unreliable locking caused by insufficient manual control force or damage to the locking handle caused by excessive force.

[0075] Furthermore, in this embodiment, as Figure 3 , Figure 7 and Figure 12 The bottom of the rotating support 30 has a mounting groove 35 for mounting the drive component 70, so that the drive end can extend to the eccentric component 61 through the first hole 31, ensuring that the drive end and the eccentric component 61 are smoothly connected.

[0076] According to the present invention, the rotating toothed chair frame, the rotating eccentric member drives the sliding component to move in the direction close to or away from the elastic member. When the sliding component moves away from the elastic member, the sliding component is squeezed by the elastic member and abuts against the inner wall of the locking cavity to restrict the rotation of the seat frame, thereby locking the seat frame. When the sliding component moves close to the elastic member, the sliding component separates from the inner wall of the locking cavity, allowing the seat frame to rotate relative to the rotating support, thus unlocking the seat frame and facilitating the adjustment of the seat frame posture.

[0077] Secondly, the rotating dental chair frame of the present invention places the rotating support with the locking component in the rotating hole on the seat cushion, so that both the rotating support and the locking component are placed inside the rotating dental chair frame. This reduces the volume occupied by the rotating dental chair frame, making the overall layout compact and beautiful, and ensuring that other components in the rotating dental chair frame can be installed smoothly without interference.

[0078] In addition, the electric control of locking and unlocking is achieved by driving the eccentric part to rotate through the drive component. It is convenient, labor-saving and precise, and solves the problems of unreliable locking due to insufficient manual control force or damage to the locking handle due to excessive manual control force.

[0079] A second aspect of the present invention provides a dental chair, including the rotating dental chair frame as described above. The rotating dental chair frame occupies a small volume, making the overall layout of the dental chair compact and aesthetically pleasing, ensuring smooth installation of other components of the dental chair and avoiding interference. Furthermore, the rotating dental chair frame can be electrically controlled to lock and unlock, making the operation of the dental chair more intelligent and meeting user needs.

[0080] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A rotating dental chair frame, characterized in that, The rotating dental chair frame includes: Base frame; The seat frame has a rotating hole; A rotating support is fixedly connected to the base frame; the rotating support is installed in the rotating hole and rotatably connected to the seat cushion frame; a sliding groove is provided on the side wall of the rotating support, and the sliding groove and the inner wall of the rotating hole form a locking cavity; A locking assembly is installed on the rotating support. The locking assembly includes an eccentric member, a sliding assembly, and an elastic member. The sliding assembly is disposed between the eccentric member and the elastic member. Rotating the eccentric member can drive the sliding assembly to move in a direction closer to or away from the elastic member. When the seat frame is in the locked state, the sliding component moves away from the elastic element, causing the sliding component to be pressed by the elastic element and abut against the inner wall of the locking cavity. The friction between the sliding component and the inner wall of the locking cavity increases, thereby limiting the clockwise or counterclockwise rotation of the seat frame and achieving the locking of the seat frame. When the sliding assembly moves toward the elastic element, the elastic element is compressed and stores energy, and the sliding assembly separates from the inner wall of the locking cavity, allowing the seat frame to rotate clockwise or counterclockwise relative to the rotating support, thereby unlocking the seat frame and enabling the seat frame to rotate in the horizontal direction.

2. The rotating dental chair frame according to claim 1, characterized in that, The rotating support is provided with a first hole extending in a first direction, a second hole extending in a second direction, and a third hole extending in a third direction. One end of the second hole is connected to the first hole, and the third hole is located at the intersection of the first hole and the second hole; The eccentric component is disposed at the first hole; the elastic component is disposed at the second hole and extends and retracts along the second direction; the sliding component is disposed at the third hole and the rotating hole is disposed at both ends of the third hole in the third direction.

3. The rotating dental chair frame according to claim 2, characterized in that, The third hole is formed as an oblong hole structure extending along the second direction, so that the sliding assembly can reciprocate along the second direction.

4. The rotating dental chair frame according to claim 2, characterized in that, The sliding component includes: The connector is formed as a rod-shaped structure extending along the third direction; A sliding member is sleeved on the outer wall of the connector, and the two ends of the sliding member in the second direction respectively abut against the eccentric member and the elastic member; A locking element is disposed at both ends along the length of the connector, and the sidewall of the locking element can abut against the cavity wall of the locking cavity.

5. The rotating dental chair frame according to claim 4, characterized in that, The sliding groove is formed as a V-shaped groove structure with a first included angle. The V-shaped groove structure extends along the second direction near the groove wall of the elastic member. The first included angle is an obtuse angle. The second included angle between the groove wall of the V-shaped groove structure near the eccentric member and the hole wall of the rotating hole is set as an acute angle. When the seat frame is locked, the locking element is clamped within the second included angle.

6. The rotating dental chair frame according to claim 5, characterized in that, The locking member and the connecting member are connected with a clearance fit. When the sliding component moves away from the elastic member, the distance between the locking member and the connecting member gradually decreases.

7. The rotating dental chair frame according to claim 1, characterized in that, The eccentric component includes an eccentric shaft and mounting portions disposed at both ends of the eccentric shaft in the axial direction, with a portion of the mounting portions protruding radially along the eccentric shaft; the eccentric shaft is formed as a cam structure.

8. The rotating dental chair frame according to claim 7, characterized in that, The sliding assembly further includes a first limiting member and a second limiting member disposed on the rotating support, the first limiting member and the second limiting member being respectively sleeved on the two mounting portions.

9. The rotating dental chair frame according to claim 1, characterized in that, The rotating dental chair frame also includes: A driving element having a driving end connected to the eccentric element, the driving element being electrically controlled; The base frame is provided with a receiving component at its top, and the rotating support is fixedly mounted on the top of the receiving component. The bottom of the rotating support is formed with a mounting groove for mounting the driving component.

10. A dental chair, characterized in that, The rotating dental chair frame includes any one of claims 1 to 9.

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