Side tank lifting mechanism and dental chair

Abstract

The utility model relates to medical instrument technical field especially is involved in a kind of side box lifting mechanism and dental chair, side box lifting mechanism includes: side box frame, movable frame, guide component and power component;Movable frame is formed with the installation site of installation dental chair frame;Guide component includes guide post and guide rotating component;Guide post is installed in side box frame and extends along vertical direction, movable frame is sleeved in guide post;Guide rotating component is installed on movable frame and has the rolling contact portion that can be in line with guide post;Power component is connected with movable frame, power component can drive movable frame reciprocating movement along the extension direction of guide post, guide rotating component rolls on guide post with the reciprocating movement of movable frame.The utility model utilizes guide component to realize the lifting power component drive movable frame lifting stability, reduce shaking amplitude, so that dental chair is stable when moving up and down adjustment, satisfies dental chair lifting adjustment demand.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a side box lifting mechanism and a dental chair. Background Technology

[0002] Dental chairs are essential medical equipment in oral disease examinations and dental treatments. During use, the height of the dental chair is usually adjusted to suit the dentist's treatment position. Currently, the height adjustment mechanism commonly uses a linear motor to drive the entire chair frame. However, because the linear motor needs to be installed directly under the chair, space must be reserved directly below the chair frame, resulting in a less neat overall appearance. This also means that the lowest chair position remains relatively high during adjustment. To address this, existing dental chair designs place the lifting mechanism in the side compartment to improve aesthetics and lower the lowest chair position. However, this method is prone to wobbling, resulting in unsatisfactory overall performance. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a side box lifting mechanism and a dental chair to solve the problem that the existing lifting mechanism for driving the lifting of the chair frame is placed on the side box, resulting in insufficient stability of the dental chair and easy shaking.

[0004] The first aspect of this utility model provides a side box lifting mechanism, comprising: Side box frame; The movable frame forms a mounting position for installing the dental chair frame; A guide assembly includes a guide post and a guide rotation assembly; the guide post is installed inside the side box frame and extends vertically, and the movable frame is sleeved on the guide post; the guide rotation assembly is installed on the movable frame and has a rolling contact portion that can fit against the guide post; A power assembly is connected to the movable frame, which can drive the movable frame to reciprocate along the extension direction of the guide column, and the guide rotation assembly rolls on the guide column as the movable frame reciprocates.

[0005] Preferably, the movable frame includes a first side portion disposed near the dental chair frame, a second side portion disposed away from the dental chair frame, and a third side portion located between the first side portion and the second side portion; The guide rotation assembly is mounted on the first side and / or the second side.

[0006] Preferably, at least two sets of the guide rotation assembly are provided, wherein at least one set of the guide rotation assembly is installed above the movable frame, and at least one set of the guide rotation assembly is installed below the movable frame.

[0007] Preferably, the guide rotation assembly includes: A rotating component is rotatably mounted on the side of the movable frame, allowing the rotating component to roll on the guide post, with the axis of rotation of the rotating component perpendicular to the extension direction of the guide post; A roller, along the extending direction of the guide post, is disposed on at least one side of the rotating member.

[0008] Preferably, the rolling contact portion is formed on the circumferential sidewall of the rotating member, or the rolling contact portion is formed on both the circumferential sidewall of the rotating member and the circumferential sidewall of the roller; The roller is made of a low-friction coefficient material, or the outer circumferential wall of the roller is provided with a low-friction coefficient material layer.

[0009] Preferably, it further includes: A support member, mounted on the movable frame and located on the third side, at least a portion of the support member extending between the movable frame and the guide post.

[0010] Preferably, the power assembly includes: A lead screw extends along the length of the guide post; A mating part is installed on the outer side of the third side portion, and the mating part is threadedly engaged with the lead screw. A drive unit is installed inside the side box frame; the output end of the drive unit is connected to the lead screw to drive the lead screw to rotate, so that the movable frame is raised and lowered as the mating part moves back and forth along the length direction of the lead screw.

[0011] Preferably, the movable frame includes: Two side plates are provided, which are arranged opposite to each other on both sides of the guide post; A fastener is provided to connect the two side plates respectively, and the fastener is located on the side plate near the guide post; The side box frame includes: An upright member is installed on the base plate of the dental chair, and two upright members are provided and spaced apart in the horizontal direction; A connector, which is connected to the two upright members and is positioned above the base of the dental chair.

[0012] Preferably, the movable frame is provided with a limiting part; The side box lifting mechanism also includes: The detection component is communicatively connected to the power assembly, and the detection component can cooperate with the limiting part to limit the reciprocating travel of the movable frame.

[0013] The second aspect of this utility model provides a dental chair, including the side box lifting mechanism of any of the above-mentioned technical solutions.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The side box lifting mechanism of this utility model includes a side box frame, a movable frame, a guide assembly, and a power assembly. The movable frame has a mounting position for mounting the dental chair frame. The guide assembly includes a guide column and a guide rotation assembly. The guide column is installed inside the side box frame and extends vertically, and the movable frame is sleeved on the guide column. The guide rotation assembly is installed on the movable frame and has a rolling contact portion that can fit against the guide column. The power assembly is connected to the movable frame and can drive the movable frame to reciprocate along the extension direction of the guide column. The guide rotation assembly rolls on the guide column as the movable frame reciprocates. In this way, the guide assembly is used to improve the stability of the movable frame being driven by the power assembly, reduce the swaying amplitude, and make the dental chair move smoothly when adjusted up and down, thus meeting the adjustment requirements of the dental chair.

[0015] 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

[0016] To more clearly illustrate the specific embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the side box lifting mechanism provided for an embodiment of this utility model; Figure 2 A schematic diagram of the structure of one upright member of the side box frame in the side box lifting mechanism provided in an embodiment of this utility model after disassembly; Figure 3 A structural cross-sectional view of the side box lifting mechanism provided for an embodiment of this utility model; Figure 4 This is a structural schematic diagram of the side box lifting mechanism provided in an embodiment of the present invention, showing the structure of one upright member of the side box frame after disassembly from another perspective.

[0018] Icons: 10-Side box frame; 11-Upright component; 12-Connector; 20-Modible frame; 200-Mounting position; 201-First side; 202-Second side; 203-Third side; 21-Side plate; 22-Fixed component; 30-Guide column; 40-Guide rotation assembly; 41-Rotating component; 42-Roller; 43-Mounting plate; 50-Power assembly; 51-Screw rod; 52-Matching part; 53-Driver; 60-Support component; 70-Dental chair base plate. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] According to the first aspect of the present invention, a side box lifting mechanism includes a side box frame 10, a movable frame 20, a guide assembly, and a power assembly 50.

[0029] The specific structure of the aforementioned components of the side box lifting mechanism according to this embodiment will be described below.

[0030] In this embodiment, as Figures 1 to 4As shown, the side frame 10 is integrally formed as a frame structure; the movable frame 20 has a mounting position 200 for mounting the dental chair frame, which can be formed as a plate-like structure above the dental chair base plate 70, for example, a plate-like structure with mounting holes. The guide assembly includes a guide post 30 and a guide rotation assembly 40; the guide post 30 is installed inside the side frame 10, the movable frame 20 is sleeved on the guide post 30, and the power assembly 50 is connected to the movable frame 20; the guide post 30 is formed as a strip structure extending in the vertical direction, and the power assembly 50 can drive the movable frame 20 to reciprocate along the extension direction of the guide post 30. The guide rotation assembly 40 is installed on the movable frame 20 and has a rolling contact portion that can fit against the guide post 30, so that the guide rotation assembly 40 can roll on the guide post 30 when the movable frame 20 reciprocates. In the guide assembly, the guide column 30 can limit the reciprocating movement direction of the movable frame 20, and the rolling contact part on the guide rotation assembly 40 can maintain rolling contact with the guide column 30 as the movable frame 20 moves. In this way, the guide assembly is used to improve the stability of the lifting and lowering of the movable frame 20 driven by the power assembly 50, reduce the swaying amplitude, and make the dental chair move smoothly when adjusting up and down, so as to meet the lifting and lowering adjustment requirements of the dental chair.

[0031] Furthermore, in this embodiment, as Figure 2 As shown, the movable frame 20 includes a first side portion 201 located near the dental chair frame, a second side portion 202 located away from the dental chair frame, and a third side portion 203 located between the first side portion 201 and the second side portion 202. The mounting position 200, as described above, is provided on the first side portion 201. Preferably, two third side portions 203 are provided and are arranged opposite to each other, so that the movable frame 20 is formed as a ring structure surrounding the circumferential sidewall of the guide post 30.

[0032] Specifically, the guide rotation assembly 40 is mounted on the first side 201 and / or the second side 202, so that the guide assembly can conform to the extension direction of the guide post 30 on the first side 201 and / or the second side 202, so as to reliably reduce the sway amplitude after the dental chair frame is fixed in the mounting position 200.

[0033] Preferably, at least two sets of guide rotation assemblies 40 are provided, wherein at least one set of guide rotation assemblies 40 is installed above the movable frame 20 and at least one set of guide rotation assemblies 40 is installed below the movable frame 20, so as to further improve the effect of reducing the sway amplitude.

[0034] For example, in a preferred embodiment, such as Figures 1 to 4As shown, two sets of guide rotation assemblies 40 are provided and respectively installed on the first side 201 and the second side 202. Specifically, one set of guide rotation assemblies 40 is located below the first side 201, and the other set of guide rotation assemblies 40 is located above the second side 202, so that when the mounting position 200 is under load, these two sets of rotation assemblies have a guiding function that conforms to the guide post 30.

[0035] Specifically, such as Figure 3 and Figure 4 As shown, the guide rotation assembly 40 includes a rotating member 41 and a roller 42. The rotating member 41 is formed into a cylindrical structure and is rotatably mounted on the side of the movable frame 20, for example, rotatably assembled to the first side portion 201 and / or the second side portion 202 as described above, so that the rotating member 41 can rotate along its rotation axis, enabling the rotating member 41 to roll on the guide post 30. Along the extending direction of the guide post 30, the roller 42 is disposed on at least one side of the rotating member 41 to increase the contact area between the guide rotation assembly 40 and the guide post 30, resulting in a better guiding effect. Preferably, rollers 42 are disposed on both sides of the rotating member 41. This arrangement makes the area enclosed by the rollers 42 in contact with the guide post 30 larger, that is, the area enclosed by the rollers 42 in contact with the guide post 30 can be equivalent to a surface contact with the guide post 30, but it is better than a surface contact because it is only necessary to ensure that the two rollers 42 are in contact. If a true surface contact is used, the processing requirements will be higher, and friction will be more likely to occur.

[0036] In this embodiment, as Figure 3 As shown, the rotation axis of the rotating component 41 is perpendicular to the extension direction of the guide post 30, and the extension direction of the axis of the roller 42 is parallel to the rotation axis of the rotating component 41.

[0037] More specifically, in this embodiment, as Figure 4 As shown, the guide rotation assembly 40 also includes a mounting plate 43, which is mounted on the first side 201 and / or the second side 202 of the movable frame 20. The mounting plate 43 is formed as a plate structure and is disposed at both ends in the axial direction of the rotating member 41. The rotating member 41 allows the mounting plate 43 to rotate around the rotating member 41. The roller 42 is mounted on the mounting plate 43, so that the guide rotation assembly 40 can be assembled with the movable frame 20 as an integral unit.

[0038] Furthermore, in one alternative embodiment, a rolling contact portion is formed on the circumferential sidewall of the rotating member 41, allowing the rotating member 41 to roll on the guide post 30, at which point the roller 42 is in sliding engagement with the guide post 30. In another alternative embodiment, the roller 42 itself can also rotate to reduce the resistance when the roller slides on the guide post 30. The rolling contact portion is formed on the circumferential sidewall of the rotating member 41 and the circumferential sidewall of the roller 42, allowing both the rotating member 41 and the roller to roll on the guide post 30.

[0039] In one preferred embodiment, the roller 42 is made of a low-friction coefficient material, meaning the entire roller 42 is made of a low-friction coefficient material. This low-friction coefficient material can be POM (polyoxymethylene), which has a self-lubricating effect for better guiding performance. In another preferred embodiment, the circumferential outer wall of the roller 42 is provided with a low-friction coefficient material layer. Specifically, the surface of the roller 42 that can contact the guide post 30 is provided with a low-friction coefficient material layer. This low-friction coefficient material layer can be supported by POM (polyoxymethylene), which also has a self-lubricating effect for better guiding performance. This embodiment has the advantage of cost reduction compared to the embodiment where the entire roller 42 is made of a low-friction coefficient material.

[0040] In this embodiment, as Figure 2 and Figure 4 As shown, the side box lifting mechanism also includes a support member 60. The support member 60 can be a shim or a block. The support member 60 is installed on the movable frame 20 and located on the third side 203. Specifically, the support member 60 can be installed on the side plate 21 as described below. At least a portion of the support member 60 extends between the movable frame 20 and the guide column 30 to guide the side of the movable frame 20 (i.e., the third side 203) where the guide rotation assembly 40 is not installed, thus preventing the movable frame 20 from shifting laterally. Preferably, at least two support members 60 are provided, and the two support members 60 are respectively provided on both sides of the guide column 30 to improve the reliability of preventing lateral shift.

[0041] Preferably, in this embodiment, such as Figure 4 As shown, the power assembly 50 includes a lead screw 51, a mating part 52, and a drive member 53. The lead screw 51 extends along the length of the guide post 30 and has external threads on its circumferential outer wall. The mating part 52 is installed on the outside of the third side part 203 as described above, so that the power assembly 50 can also be assembled in the side box frame 10, making the overall layout neater and more reasonable. The mating part 52 is threadedly engaged with the lead screw 51 so that the mating part 52 can reciprocate along the extension direction of the lead screw 51 when the lead screw 51 rotates. The mating part 52 can be formed as a nut or other slider structure with threaded holes. The drive member 53 can be a power source such as a motor or cylinder. The drive member 53 is installed in the side box frame 10. The output end of the drive member 53 (i.e., the output shaft of the motor or cylinder) is connected to the lead screw 51 to drive the lead screw 51 to rotate, so that the movable frame 20 is raised and lowered as the mating part 52 reciprocates along the length of the lead screw 51.

[0042] In this embodiment, as Figure 2 and Figure 3As shown, the movable frame 20 includes side plates 21 and fasteners 22. Two side plates 21 are arranged opposite each other on both sides of the guide post 30 to form a third side portion 203. The fasteners 22 connect the two side plates 21 respectively. Preferably, the fasteners 22 are welded to the side plates 21. Preferably, two fasteners 22 are provided, forming a first side portion 201 and a second side portion 202 respectively. One fastener 22 can be located above the first side portion 201, and the other fastener 22 can be located below the second side portion 202, so that the movable frame 20 surrounds the entire circumference of the guide post 30. The fasteners 22 are located on the side plates 21 near the guide post 30 to improve the fit between the movable frame 20 and the guide post 30.

[0043] In this embodiment, as Figure 2 As shown, the side frame 10 includes upright members 11 and connecting members 12. The upright members 11 can be formed as vertically arranged plate-like, column-like, or rod-like structures. The upright members 11 are mounted on the dental chair base plate 70. Specifically, the bottom of the upright members 11 is fixed to the dental chair base plate 70. There are two upright members 11, which are spaced apart in the horizontal direction. The guide post 30 is arranged between the two upright members 11. The connecting member 12 is formed as a plate-like or rod-like structure, which is connected to the two upright members 11 and arranged above the dental chair base plate 70. After the side frame 10 formed by the two upright members 11 and the connecting member 12 is assembled with the dental chair base plate 70, it forms a space for installing the guide post 30, the power assembly 50, and at least part of the movable frame 20.

[0044] Furthermore, in this embodiment, the movable frame 20 is provided with a limiting part, which can be formed into a plate-like, rod-like, column-like, or other structure. Preferably, there are multiple limiting parts, with at least one limiting part located at the top of the movable frame 20 and at least one limiting part located at the bottom of the movable frame 20. The side box lifting mechanism also includes a detection element communicatively connected to the power assembly 50. The detection element can cooperate with the limiting part to limit the reciprocating travel of the movable frame 20. Specifically, in an optional embodiment, the detection element is a limit switch. When the limiting part contacts the detection element along with the movable frame 20, it indicates that the movable frame 20 has moved to a set limit position. At this time, the dental chair frame is at its highest or lowest position. The detection element then sends a signal to the drive element 53 in the power assembly 50 to stop the drive element 53 from continuing to drive the movable part to move. The side box lifting mechanism according to this utility model includes a side box frame 10, a movable frame 20, a guide assembly, and a power assembly 50. The movable frame 20 has a mounting position 200 for mounting the dental chair frame. The guide assembly includes a guide post 30 and a guide rotation assembly 40. The guide post 30 is installed inside the side box frame 10 and extends vertically, and the movable frame 20 is sleeved on the guide post 30. The guide rotation assembly 40 is installed on the movable frame 20 and has a rolling contact portion that can fit against the guide post 30. The power assembly 50 is connected to the movable frame 20 and can drive the movable frame 20 to reciprocate along the extension direction of the guide post 30. The guide rotation assembly 40 rolls on the guide post 30 as the movable frame 20 reciprocates. In this way, the guide assembly is used to improve the stability of the movable frame 20 driven by the power assembly 50, reduce the swaying amplitude, and make the dental chair move smoothly when adjusted up and down, thus meeting the adjustment requirements of the dental chair.

[0045] The dental chair provided by this utility model includes the aforementioned side box lifting mechanism, and thus has all the beneficial effects of the side box lifting mechanism, which will not be repeated here.

[0046] 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 side box lifting mechanism, characterized in that, include: Side box frame; The movable frame forms a mounting position for installing the dental chair frame; The guide assembly includes a guide post and a guide rotation assembly; The guide post is installed inside the side box frame and extends vertically, and the movable frame is sleeved on the guide post; the guide rotation assembly is installed on the movable frame and has a rolling contact portion that can fit against the guide post; A power assembly is connected to the movable frame, which can drive the movable frame to reciprocate along the extension direction of the guide column, and the guide rotation assembly rolls on the guide column as the movable frame reciprocates.

2. The side box lifting mechanism according to claim 1, characterized in that, The movable frame includes a first side portion located near the dental chair frame, a second side portion located away from the dental chair frame, and a third side portion located between the first side portion and the second side portion; The guide rotation assembly is mounted on the first side and / or the second side.

3. The side box lifting mechanism according to claim 1, characterized in that, The guide rotation assembly is provided in at least two sets, wherein at least one set of the guide rotation assembly is installed above the movable frame, and at least one set of the guide rotation assembly is installed below the movable frame.

4. The side box lifting mechanism according to claim 1, characterized in that, The guide rotation assembly includes: A rotating component is rotatably mounted on the side of the movable frame, allowing the rotating component to roll on the guide post, with the axis of rotation of the rotating component perpendicular to the extension direction of the guide post; A roller, along the extending direction of the guide post, is disposed on at least one side of the rotating member.

5. The side box lifting mechanism according to claim 4, characterized in that, The rolling contact portion is formed on the circumferential sidewall of the rotating member, or the rolling contact portion is formed on both the circumferential sidewall of the rotating member and the circumferential sidewall of the roller; The roller is made of a low-friction coefficient material, or the outer circumferential wall of the roller is provided with a low-friction coefficient material layer.

6. The side box lifting mechanism according to claim 2, characterized in that, Also includes: A support member, mounted on the movable frame and located on the third side, at least a portion of the support member extending between the movable frame and the guide post.

7. The side box lifting mechanism according to claim 2, characterized in that, The power assembly includes: A lead screw extends along the length of the guide post; A mating part is installed on the outer side of the third side portion, and the mating part is threadedly engaged with the lead screw. A drive unit is installed inside the side box frame; the output end of the drive unit is connected to the lead screw to drive the lead screw to rotate, so that the movable frame is raised and lowered as the mating part moves back and forth along the length direction of the lead screw.

8. The side box lifting mechanism according to claim 1, characterized in that, The movable frame includes: Two side plates are provided, which are arranged opposite to each other on both sides of the guide post; A fastener is provided to connect the two side plates respectively, and the fastener is located on the side plate near the guide post; The side box frame includes: An upright member is installed on the base plate of the dental chair, and two upright members are provided and spaced apart in the horizontal direction; A connector, which is connected to the two upright members and is positioned above the base of the dental chair.

9. The side box lifting mechanism according to claim 1, characterized in that, The movable frame is provided with a limiting part; The side box lifting mechanism also includes: The detection component is communicatively connected to the power assembly, and the detection component can cooperate with the limiting part to limit the reciprocating travel of the movable frame.

10. A dental chair, characterized in that, Includes the side box lifting mechanism as described in any one of claims 1 to 9.

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