Rotation detection mechanism and electric dining table

Abstract

The utility model discloses a rotation detection mechanism and an electric dining table. The rotation detection mechanism comprises a rotation shaft assembly, a rotation assembly and a rotation detection unit, and the rotation assembly is rotatably arranged on the rotation shaft assembly; the rotation detection unit comprises a main shell arranged on the rotating shaft assembly and a rotating piece rotationally arranged on the main shell, and the main shell is provided with a sensing module; the rotation detection unit comprises an extension part, the extension part is connected to the rotating part and extends to the position corresponding to the rotating assembly, the rotating assembly is provided with a connecting structure which can abut against or be movably connected with the extension part, and when the rotating assembly rotates, the connecting structure can drive the rotating part to rotate by pushing the extension part; according to the rotation detection mechanism, the rotation detection function of the rotation assembly can be achieved, the extension part is connected with the connecting structure through the abutting structure or the movable structure, even if machining or assembling errors occur in the rotation detection mechanism, it can be well guaranteed that the rotation detection unit can normally detect rotation of the rotation assembly, and the detection reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rotation detection mechanisms, in particular to a rotation detection mechanism and an electric dining table. Background Art

[0002] At present, the rotation detection of electric dining tables is generally carried out by setting a detection roller at the bottom of the turntable (friction disk). When the turntable (friction disk) rotates, it can drive the roller to rotate, thereby achieving the function of rotation detection. The detection structure needs to ensure that the rolling direction of the roller is consistent with the tangent direction of the corresponding position, otherwise detection deviation is very likely to occur. However, in actual production, due to processing errors and assembly errors, it is difficult to guarantee the position accuracy during installation, so the detection accuracy is low or the detection is abnormal, and the reliability is not high. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a rotation detection mechanism having the advantage of high detection reliability.

[0004] The utility model also provides an electric dining table.

[0005] According to the first aspect of the present invention, the rotation detection mechanism includes: a rotating shaft assembly, a rotating assembly, and a rotation detection unit, wherein the rotating assembly can be rotatably arranged on the rotating shaft assembly; the rotation detection unit includes a main shell arranged on the rotating shaft assembly, and a rotating part rotatably arranged on the main shell, and the main shell is provided with a sensor module capable of checking the rotation position of the rotating part; the rotation detection unit also includes an extension part, which is connected to the rotating part and extends to a position corresponding to the rotating assembly, and the rotating assembly is provided with a connecting structure that can abut or be movably connected to the extension part, and when the rotating assembly rotates, the connecting structure can drive the rotating part to rotate by pushing the extension part.

[0006] The rotation detection mechanism according to the embodiment of the utility model has at least the following beneficial effects: it can meet the rotation detection function of the rotating component, and the extension part is connected to the connecting structure through an abutment structure or a movable structure. Even if the rotation detection mechanism has processing or assembly errors, it can better ensure that the rotation detection unit can normally detect the rotation of the rotating component, and the detection reliability is high.

[0007] According to some embodiments of the present invention, the rotating shaft assembly is provided with a through hole extending in the axial direction, and the rotating member is provided with a hollow hole corresponding to the through hole.

[0008] According to some embodiments of the present invention, a connecting platform for connecting with the extension member is provided at the upper end of the rotating member, and the connecting platform extends toward the inner side of the hollow hole.

[0009] According to some embodiments of the present invention, a connecting platform for connecting with the extension member is provided at the upper end of the rotating member.

[0010] According to some embodiments of the present invention, the extension piece is an elongated piece, one end of the extension piece is connected to the connecting platform, and the other end of the extension piece extends toward the rotating component.

[0011] According to some embodiments of the present invention, the connecting platform is provided with a recess corresponding to the end of the extension piece.

[0012] According to some embodiments of the present invention, the extension piece is connected to the connecting platform by screws.

[0013] According to some embodiments of the present invention, the connection structure includes a connecting member provided on the rotating assembly, and the extension member is provided with at least one matching hole for the connecting member to be inserted.

[0014] According to some embodiments of the present invention, the direction extending outward from the axis of the rotating shaft assembly is set as from inside to outside, the matching hole is an elongated hole extending along the inside-outside direction, and the connecting member can slide in the elongated hole.

[0015] According to some embodiments of the present invention, the connecting member is an elongated column provided on the rotating assembly, and the elongated column can be inserted into the matching hole.

[0016] According to some embodiments of the present invention, the elongated column is a shaft pin, and the end of the shaft pin is provided with a threaded portion that can be threadedly engaged with the rotating assembly.

[0017] According to some embodiments of the present invention, the rotating member is provided with a code disk, and the sensing module is a photoelectric sensor corresponding to the code disk.

[0018] According to some embodiments of the present invention, the main housing is provided with a bearing that cooperates with the rotating member.

[0019] According to some embodiments of the present invention, a mounting seat is provided at the upper end of the rotating shaft assembly, and the rotation detection unit is mounted on the mounting seat.

[0020] According to some embodiments of the present invention, the rotation detection unit is detachably mounted to the mounting seat.

[0021] According to some embodiments of the present invention, the extension member is detachably mounted to the rotating member.

[0022] According to some embodiments of the present invention, the rotating assembly includes a turntable, and the connecting structure is arranged on the turntable.

[0023] The electric dining table according to the second embodiment of the present invention includes the rotation detection mechanism of any one of the embodiments of the first embodiment of the present invention.

[0024] The electric dining table according to the embodiment of the present invention has at least the following beneficial effects: it can improve the reliability of the tabletop rotation detection of the electric dining table. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 This is a structural diagram of a rotation detection mechanism according to an embodiment of the present utility model;

[0027] Figure 2 A top view of the rotation detection mechanism according to an embodiment of the present invention;

[0028] Figure 3 This is an exploded schematic diagram of the rotation detection mechanism of an embodiment of the present utility model;

[0029] Figure 4 This is a structural diagram of a rotation detection unit according to an embodiment of the present utility model;

[0030] Figure 5 This is an exploded schematic diagram of a rotation detection unit according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] Rotating shaft assembly 100, through hole 101, mounting seat 110;

[0033] Rotating assembly 200, connecting member 210;

[0034] The rotation detection unit 300 , the main housing 310 , the bearing 311 , the rotating member 320 , the hollow hole 321 , the connecting platform 322 , the recess 323 , the code wheel 324 , the extension member 330 , and the fitting hole 331 . DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] Reference below Figures 1 to 5 A rotation detection mechanism according to an embodiment of the present invention is described.

[0040] like Figures 1 to 3 As shown, the rotation detection mechanism according to an embodiment of the present invention includes: a rotating shaft assembly 100, a rotating assembly 200, and a rotation detection unit 300. The rotating assembly 200 is rotatably disposed on the rotating shaft assembly 100; the rotation detection unit 300 includes a main housing 310 disposed on the rotating shaft assembly 100, and a rotating member 320 rotatably disposed on the main housing 310. The main housing 310 is provided with a sensor module capable of detecting the rotation position of the rotating member 320.

[0041] The rotation detection unit 300 also includes an extension piece 330, which is connected to the rotating piece 320 and extends to a position corresponding to the rotating component 200. The rotating component 200 is provided with a connecting structure that can abut or be movably connected to the extension piece 330. When the rotating component 200 rotates, the connecting structure can drive the rotating piece 320 to rotate by pushing the extension piece 330, thereby satisfying the rotation detection function of the rotating component 200, and the extension piece 330 is connected to the connecting structure through an abutment structure or a movable structure. Even if there is a processing or assembly error in the rotation detection mechanism, such as when the concentricity or coaxiality of the rotation detection unit 300 and the rotating shaft assembly 100 is too large, it can also better ensure that the rotation detection unit 300 can normally detect the rotation of the rotating component 200, and the detection reliability is high.

[0042] In some embodiments of the present invention, the rotating shaft assembly 100 is a central shaft assembly, the rotating assembly 200 includes a turntable, and the connecting structure is disposed on the turntable.

[0043] Specifically, the turntable is a supporting tray or a friction disk, which is provided with a bracket structure capable of supporting the desktop.

[0044] like Figures 1 to 5 As shown, in some embodiments of the present invention, the connection structure includes a connecting member 210 provided on the rotating assembly 200, and the extension member 330 is provided with at least one matching hole 331 for the connecting member 210 to be inserted, and the extension member 330 is driven to move by the abutment between the connecting member 210 and the inner wall of the matching hole 331.

[0045] It can be understood that in some embodiments of the present invention, the connection structure can also be a long slide groove arranged on the rotating component 200 (turntable) and extending in the inward and outward directions. The extension part 330 is arranged as a 7-shaped structure, one end of which is connected to the rotating part 320, and the other end is inserted into the slide groove of the rotating component 200, which can also meet the requirements of the movable connection between the extension part 330 and the rotating component 200.

[0046] like Figures 1 to 5 As shown, in some embodiments of the present invention, the direction of outward extension from the axis of the rotating shaft assembly 100 is set to be from the inside to the outside, and the matching hole 331 is an elongated hole extending along the inside-outside direction. The connecting member 210 can slide in the elongated hole, thereby satisfying the movable connection between the extension member 330 and the rotating assembly 200. When processing or assembly errors occur in the rotation detection mechanism, it can also better ensure that the rotation detection unit 300 can normally detect the rotation of the rotating assembly 200, and the detection reliability is high.

[0047] Specifically, when processing or assembly errors occur in the rotation detection mechanism, such as eccentricity occurs when the rotation detection unit 300 is installed on the rotating shaft assembly 100, that is, the concentricity or coaxiality of the rotating part 320 and the rotating shaft assembly 100 is too large, when the rotating assembly 200 rotates, the abutment point between the extension part 330 and the connecting part 210 is difficult to maintain in the same position, that is, the extension part 330 and the connecting part 210 will be offset to a certain extent. By configuring an elongated hole to connect with the connecting part 210, the connecting part 210 slides in the elongated hole, and the connecting part 210 can still maintain abutment with the inner side of the elongated hole. The rotation detection unit 300 can still detect the rotation of the rotating assembly 200 normally, thereby improving the reliability of the detection.

[0048] In some embodiments of the present invention, the elongated hole is configured to extend along the radial direction of the rotating shaft assembly 100 to ensure better detection accuracy.

[0049] It can be understood that in some embodiments of the present invention, the mating hole 331 is a circular hole with an inner diameter larger than the outer diameter of the connecting member 210, so that there is a set gap between the inner wall of the mating hole 331 and the connecting member 210, so as to allow the connecting member 210 to move in a small range in the mating hole 331, and can also better eliminate the influence of the processing or assembly errors of the rotation detection mechanism on the detection reliability.

[0050] like Figure 4 、 Figure 5 As shown, in some embodiments of the present invention, three matching holes 331 are provided, which are spaced apart along the inner and outer directions to meet the detection requirements of rotating components 200 of different sizes.

[0051] Of course, in the specific implementation process, the number of the matching holes 331 can be set to one, two or more than three as needed, which will not be detailed here.

[0052] It is conceivable that in some embodiments of the present invention, the fitting hole 331 may also be a U-shaped hole with the opening facing outward, which can also satisfy the function of the connecting member 210 sliding in the fitting hole 331 .

[0053] In some embodiments of the present invention, the extension piece 330 can be configured to include two elongated pieces, which are roughly parallel and spaced apart, with an elongated groove corresponding to the connecting piece 210 formed in the middle, which can also satisfy the function of movable cooperation between the connecting piece 210 and the extension piece 330.

[0054] It can be understood that in some embodiments of the present invention, other movable connection structures can be used between the extension member 330 and the connecting member 210. For example, the extension member 330 and the connecting member 210 can be connected by a flexible connection structure such as a rope, elastic band, spring, etc.

[0055] like Figure 1 、 Figure 3 As shown, in some embodiments of the present invention, the connecting member 210 is an elongated column provided on the rotating assembly 200 , and the elongated column can be inserted into the matching hole 331 to meet the connection function between the rotating assembly 200 and the extension member 330 .

[0056] In some embodiments of the present invention, the elongated column is a pin, and the end of the pin is provided with a threaded portion that can be threadedly engaged with the rotating assembly 200 , so that the pin is set in the rotating assembly 200 .

[0057] Of course, in a specific implementation process, the long column can also be connected to the rotating assembly 200 through a plug-in structure, or the connecting member 210 and the turntable of the rotating assembly 200 can be set as an integrated structure.

[0058] like Figure 3 、 Figure 4As shown, in some embodiments of the present invention, the rotating shaft assembly 100 is provided with a through hole 101 extending in the axial direction, and the rotating member 320 is provided with a hollow hole 321 corresponding to the through hole 101 to facilitate threading operations.

[0059] like Figure 4 、 Figure 5 As shown, in some embodiments of the present invention, a connecting platform 322 for connecting to the extension member 330 is provided at the upper end of the rotating member 320, and the connecting platform 322 extends toward the inner side of the hollow hole 321 to avoid the connecting platform 322 extending outward and interfering with other components.

[0060] like Figure 4 、 Figure 5 As shown, in some embodiments of the present invention, a connecting platform 322 for connecting with the extension member 330 is provided at the upper end of the rotating member 320 to facilitate the installation of the extension member 330.

[0061] It is understandable that in some embodiments of the present invention, the extension member 330 may also be configured to be integrally formed with the rotating member 320 .

[0062] like Figure 4 、 Figure 5 As shown, in some embodiments of the present invention, the extension piece 330 is an elongated piece, one end of the extension piece 330 is connected to the connecting platform 322, and the other end extends toward the rotating assembly 200 to form an extension structure that can cooperate with the connecting structure.

[0063] In some embodiments of the present invention, the extension member 330 is configured to extend outward along the radial direction of the rotating member 320 to achieve better detection accuracy.

[0064] like Figure 5 As shown, in some embodiments of the present invention, the connecting platform 322 is provided with a recess 323 corresponding to the end of the extension member 330 to facilitate the installation of the extension member 330 and achieve better installation accuracy.

[0065] In some embodiments of the present invention, the extension member 330 is connected to the connecting platform 322 by screws.

[0066] It is understandable that in some embodiments of the present invention, a plug-in hole corresponding to the extension member 330 is provided on the rotating member 320 , and the extension member 330 can also be installed to the rotating member 320 by plugging.

[0067] like Figure 5 As shown, in some embodiments of the present invention, the rotating member 320 is provided with a code disk 324, and the sensing module is a photoelectric sensor (not shown in the figure) corresponding to the code disk 324, and the rotation status of the code disk 324 can be detected by the photoelectric sensor.

[0068] Specifically, the code disk 324 has identification structures such as holes distributed in a ring shape. When the code disk 324 rotates, the identification structures such as holes affect the signal of the photoelectric sensor, thereby achieving the function of rotation detection.

[0069] Of course, in the specific implementation process, the sensing module can also be other non-contact rotation sensors, such as a magnetoelectric speed sensor. A gear is set on the rotating part 320. The coil of the magnetoelectric speed sensor will generate magnetic lines of force. The rotation of the gear will cut the magnetic lines of force. Due to the change in magnetic resistance, the magnetic circuit will generate a changing electromotive force in the induction coil, thereby detecting the rotation condition of the rotating part 320.

[0070] like Figure 5 As shown, in some embodiments of the present invention, the main housing 310 is configured with a bearing 311 that cooperates with the rotating member 320 to improve the rotation smoothness of the rotating member 320.

[0071] Specifically, the main shell 310 includes an upper shell and a lower shell, which are connected by snaps, screws, etc. to form an inner cavity for accommodating the sensor module and the rotating member 320. The bearing 311 is configured into two and is respectively set in the upper shell and the lower shell.

[0072] like Figure 5 As shown, in some embodiments of the present invention, a mounting seat 110 is provided at the upper end of the rotating shaft assembly 100 , and the rotation detection unit 300 is mounted on the mounting seat 110 to facilitate the installation and use of the rotation detection unit 300 .

[0073] Specifically, by configuring the mounting base 110 , the rotation detection mechanism can be applied to the rotation mechanism of an existing electric dining table, etc., and is convenient to use.

[0074] In some embodiments of the present invention, a connecting portion that can be inserted into the through hole 101 of the rotating shaft assembly 100 is provided at the lower part of the mounting seat 110. The connecting portion is connected to the through hole 101 by tight fitting or snapping to meet the installation requirements of the mounting seat 110.

[0075] In some embodiments of the present invention, the rotation detection unit 300 is detachably mounted to the mounting base 110 to facilitate installation and maintenance of the rotation detection unit 300 .

[0076] Specifically, the main housing 310 is connected to the mounting base 110 by means of screws, buckles, etc.

[0077] Of course, in the specific implementation process, the main shell 310 can also be installed to the upper end of the rotating shaft assembly 100 through an installation mechanism such as a screw mechanism, a snap mechanism, a tight-fitting plug-in mechanism, etc., which will not be described in detail here.

[0078] In some embodiments of the present invention, the extension member 330 is detachably mounted to the rotating member 320 to facilitate disassembly, assembly, and replacement of the extension member 330 .

[0079] The electric dining table according to the second embodiment of the present invention includes the rotation detection mechanism of any one of the first embodiments of the present invention, which can improve the reliability of the tabletop rotation detection of the electric dining table.

[0080] Of course, the invention of the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A rotation detection mechanism, characterized in that: include: A rotating shaft assembly (100); A rotating assembly (200) rotatably disposed on the rotating shaft assembly (100); A rotation detection unit (300), the rotation detection unit (300) comprising a main housing (310) disposed on the rotation shaft assembly (100), a rotating member (320) rotatably disposed on the main housing (310), the main housing (310) being provided with a sensor module capable of detecting the rotation position of the rotating member (320); The rotation detection unit (300) further comprises an extension piece (330), the extension piece (330) being connected to the rotating member (320) and extending to a position corresponding to the rotating assembly (200), the rotating assembly (200) being provided with a connection structure capable of abutting or movably connecting with the extension piece (330), and when the rotating assembly (200) rotates, the connection structure can drive the rotating member (320) to rotate by pushing the extension piece (330).

2. The rotation detection mechanism according to claim 1, wherein: The connection structure comprises a connecting member (210) arranged on the rotating assembly (200), and the extension member (330) is provided with at least one matching hole (331) capable of being inserted into the connecting member (210).

3. The rotation detection mechanism according to claim 2, characterized in that: The direction extending outward from the axis of the rotating shaft assembly (100) is set as the direction from inside to outside, the matching hole (331) is an elongated hole extending in the inside-outside direction, and the connecting member (210) can slide in the elongated hole.

4. The rotation detection mechanism according to claim 3, characterized in that: The connecting member (210) is an elongated column provided on the rotating assembly (200), and the elongated column can be inserted into the matching hole (331); the elongated column is an axle pin, and the end of the axle pin is provided with a threaded portion that can be threadedly matched with the rotating assembly (200).

5. The rotation detection mechanism according to claim 1, wherein: The rotating shaft assembly (100) is provided with a through hole (101) extending in the axial direction, and the rotating member (320) is provided with a hollow hole (321) corresponding to the through hole (101).

6. The rotation detection mechanism according to claim 5, characterized in that: The upper end of the rotating member (320) is provided with a connecting platform (322) for connecting with the extension member (330), and the connecting platform (322) extends toward the inner side of the hollow hole (321).

7. The rotation detection mechanism according to claim 1 or 5, characterized in that: The upper end of the rotating member (320) is provided with a connecting platform (322) for connecting to the extension member (330); the extension member (330) is an elongated member, one end of the extension member (330) is connected to the connecting platform (322), and the other end extends toward the rotating assembly (200); the connecting platform (322) is provided with a recess (323) corresponding to the end of the extension member (330).

8. The rotation detection mechanism according to claim 1, characterized in that: The rotating member (320) is provided with a code disk (324), and the sensing module is a photoelectric sensor corresponding to the code disk (324).

9. The rotation detection mechanism according to claim 1, characterized in that: A mounting seat (110) is provided at the upper end of the rotating shaft assembly (100), and the rotation detection unit (300) is mounted on the mounting seat (110).

10. An electric dining table, characterized in that: include: The rotation detection mechanism according to any one of claims 1 to 9.

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