Lifting adjusting mechanism and sitting posture corrector applying same

Abstract

The utility model discloses a lifting adjusting mechanism which is characterized in that a guide column is arranged on a base, and the guide column is provided with a plurality of limiting grooves which are sequentially distributed in the height direction of the guide column; the lifting seat is connected with the guide column in a lifting manner; a clamping opening of which the size can be changed along with the lifting of the lifting seat is defined between the base and the lifting seat; the fixing assembly comprises a clamping wheel, the clamping wheel is rotatably installed on the lifting base, and clamping teeth are arranged on the clamping wheel. The back cushion assembly is mounted on the lifting seat; when the clamping wheel rotates, the clamping teeth can be clamped to the limiting grooves corresponding to the current height position so as to limit lifting of the lifting base relative to the base, or the clamping teeth can be separated from the limiting grooves so that the lifting base can ascend and descend relative to the base. The lifting adjusting mechanism can quickly adjust the size of the clamping opening to adapt to clamping positions with different thicknesses, and clamping, loading and unloading operation is simple and quick.

Description

Technical Field

[0001] The utility model relates to a corrector, in particular to a lifting and lowering adjustment mechanism and a sitting posture corrector using the same. Background Art

[0002] Some existing correctors are directly clamped on a table or other clamping position through a clamping mouth. The clamping mouth is set to change the size of the clamping mouth by rotating the screw to drive the clamping plate to move. During use, if the clamping position is thick, it takes a long time to rotate the screw to expand the clamping mouth. After removing the corrector from the clamping position, it takes a long time to rotate the screw to reset the clamping mouth. Such operation is very time-consuming and inconvenient. Utility Model Content

[0003] The utility model aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the utility model provides a lifting and lowering adjustment mechanism and a sitting posture corrector using the same.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] According to the first aspect of the present invention, the lifting and lowering adjustment mechanism includes:

[0006] A base, wherein the base is provided with a guide column, and the guide column is provided with a plurality of limit grooves arranged in sequence along the height direction of the guide column;

[0007] A lifting seat, the lifting seat is connected to the guide column in a liftable manner, and a clamping opening is defined between the base and the lifting seat, the size of which can be changed as the lifting seat is lifted;

[0008] A fixing assembly, the fixing assembly comprising a clamping wheel, the clamping wheel is rotatably mounted on the lifting seat, and the clamping wheel is provided with clamping teeth;

[0009] A pillow assembly, mounted on the lifting seat;

[0010] When the clamping wheel rotates, the clamping teeth can be clamped on the limiting groove corresponding to the current height position to limit the lifting seat from lifting relative to the base, or the clamping teeth can be separated from the limiting groove to allow the lifting seat to lift relative to the base.

[0011] The lifting and adjusting mechanism according to the embodiment of the utility model has at least the following beneficial effects: the lifting and adjusting mechanism can quickly adjust the size of the clamping opening to adapt to clamping positions of different thicknesses, and the clamping and loading and unloading operations are simple and quick.

[0012] According to some embodiments of the utility model, the fixing assembly also includes a knob, which is rotatably mounted on the lifting seat, a first tooth surface is provided on the peripheral wall of the rotating shaft of the knob, and a second tooth surface is provided on the peripheral wall of the clamping wheel, and the first tooth surface and the second tooth surface are meshed for transmission.

[0013] According to some embodiments of the utility model, the second tooth surface is an incomplete tooth surface on the peripheral wall of the clamping wheel, the position of the clamping wheel other than the second tooth surface is set to a smooth surface, the clamping tooth is located on the side where the smooth surface is located, and a recessed position is provided on the guide column, and the recessed position extends along the height direction of the guide column, and each of the limiting grooves is distributed in the recessed position, the smooth surface is opposite to the recessed position, and the two ends of the second tooth surface can rotate with the clamping wheel to abut against the two sides of the recessed position to limit the rotation stroke of the clamping wheel.

[0014] According to some embodiments of the utility model, the clamping wheel is provided with a protrusion extending in the axial direction, and the protrusion is provided with a plurality of the clamping teeth arranged in sequence along the height direction of the guide column.

[0015] According to some embodiments of the utility model, the limiting groove is arranged obliquely, and the locking tooth is in the shape of a screw thread.

[0016] According to some embodiments of the present invention, the pillow assembly is flippably mounted on the top of the lifting seat.

[0017] According to some embodiments of the utility model, the pillow assembly includes a pillow and a flip seat, the flip seat is rotatably installed on the top of the lifting seat, and the pillow is slidably connected to the flip seat.

[0018] The sitting posture corrector according to the second embodiment of the utility model includes a lifting and lowering adjustment mechanism.

[0019] The sitting posture corrector according to the embodiment of the utility model has at least the following beneficial effects: it can be quickly adjusted and positioned at a certain height for use.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic diagram of a state where the pillow assembly is in a first position;

[0023] Figure 2is a schematic diagram of a state where the pillow assembly is in a second position;

[0024] Figure 3 yes Figure 1 Schematic diagram of partial structural decomposition;

[0025] Figure 4 It is a schematic diagram of the structure of the fixed component;

[0026] Figure 5 It is a schematic diagram of the structure of the base;

[0027] Figure 6 is a schematic diagram of a state in which the latching teeth are disengaged from the limiting groove;

[0028] Figure 7 It is a schematic diagram of the state in which the latching tooth slides into the limiting groove.

[0029] Figure numerals: base 100; guide column 110; recessed position 111; limiting groove 120; clamping mouth 130; lifting seat 200; second slide bar 210; fixing assembly 300; clamping wheel 310; clamping tooth 311; second tooth surface 312; smooth surface 313; protrusion 314; knob 320; first tooth surface 321; pillow assembly 400; pillow 410; flip seat 420. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and 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 to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The utility model relates to a lifting and adjusting mechanism, which comprises a base 100, a lifting seat 200, a backrest component 400, and a fixing component 300.

[0032] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, a guide post 110 is provided on the base 100, and the base 100 and the guide post 110 cooperate to form an L shape. The guide post 110 can be formed by extending vertically upward directly from the base 100, or the guide post 110 can be installed on the base 100 as an independent component. A plurality of limit grooves 120 are provided on the guide post 110, and each limit groove 120 is arranged in sequence along the height direction of the guide post 110. The limit grooves 120 can be arranged horizontally or inclined. Adjacent limit grooves 120 are arranged closely. The lifting seat 200 is connected to the guide post 110, and the lifting seat 200 can be vertically lifted relative to the guide post 110. The lifting seat 200 can be sleeved on the base 100, or it can be slidably connected by a structure such as a slide rail. Among them, a clamping opening 130 is defined between the upper part of the base 100 and the lower part of the lifting seat 200, and the size of the clamping opening 130 changes with the lifting position of the lifting seat 200. It can be that when the lifting seat 200 is lowered to the lowest position, the clamping opening 130 is the smallest. When the lifting seat 200 rises relative to the base 100, the clamping opening 130 gradually becomes larger. The pillow assembly 400 is installed on the lifting seat 200, and the pillow assembly 400 rises and falls with the lifting seat 200. The fixing assembly 300 includes a clamping wheel 310, and the clamping wheel 310 is rotatably installed on the lifting seat 200. The clamping wheel 310 is lifted and lowered relative to the base 100 with the lifting seat 200. The clamping wheel 310 is provided with a clamping tooth 311, and the clamping tooth 311 is adapted to the shape of the limiting groove 120. For example, the limiting groove 120 is in the shape of a long strip, and the clamping tooth 311 can also extend in a strip shape. One or more clamping teeth 311 on the clamping wheel 310 can be provided, and the clamping tooth 311 moves in and out of the limiting groove 120 with the rotation of the clamping wheel 310 on the lifting seat 200. The utility model reflects the lifting and lowering adjustment mechanism on the sitting posture corrector. When in use, according to the use requirements, the lifting seat 200 is lifted to a certain height, and the clamping opening 130 is inserted into the side of the table top or other clamping positions, and the clamping teeth 311 remain in the position of being out of the clamping slot. The lifting seat 200 is pressed down so that the clamping opening 130 clamps the table top. Figure 7 As shown, the clamping wheel 310 is then rotated, and the clamping wheel 310 drives the clamping teeth 311 to slide into the limiting groove 120 relative to the current position, thereby limiting the lifting and lowering of the lifting seat 200, and then the clamping mouth 130 is clamped on the table board for use. Figure 6 As shown, it is only necessary to rotate the clamping wheel 310 so that the clamping teeth 311 are disengaged from the limiting groove 120, thereby releasing the restriction on the lifting seat 200. The lifting seat 200 is raised, the clamping opening 130 is enlarged, and the clamping opening 130 can be disengaged from the table top, thereby taking out the lifting adjustment mechanism. The lifting adjustment mechanism can quickly adjust the size of the clamping opening 130 to adapt to the clamping position of different thicknesses, and the clamping and loading and unloading operations are simple and fast.

[0033] For controlling the card wheel 310, the card wheel 310 can be set so that at least a part of the card wheel 310 extends out of the lifting seat 200, and the user directly operates the card wheel 310, or the card wheel 310 is connected to other components such as a handle for user operation. Figure 1 , Figure 3 and Figure 4 As shown, the fixing assembly 300 further includes a knob 320, which is rotatably mounted on the lifting seat 200. A first tooth surface 321 is provided on the peripheral wall of the rotating shaft of the knob 320. The first tooth surface 321 is arranged around the axial direction of the knob 320. A second tooth surface 312 is provided on the peripheral wall of the clamping wheel 310. The first tooth surface 321 and the second tooth surface 312 are meshed with each other. The clamping wheel 310 can be hidden inside the lifting seat 200, and the knob 320 protrudes outside the lifting seat 200. When in use, the user operates the knob 320, and the first tooth surface 321 and the second tooth surface 312 are meshed and transmitted, driving the clamping wheel 310 to rotate.

[0034] Further, such as Figure 4 As shown, the second tooth surface 312 on the peripheral wall of the card wheel 310 is an incomplete tooth surface. In this embodiment, the second tooth surface 312 occupies less than half of the circumference of the peripheral wall of the card wheel 310. The position of the non-second tooth surface 312 on the card wheel 310 is set as a smooth surface 313, that is, there is no tooth on the smooth surface 313. The latching tooth 311 is located on the side where the smooth surface 313 is located. A recessed position 111 is provided on the guide column 110. The recessed position 111 can be recessed in an arc shape, and the recessed position 111 extends along the height direction of the guide column 110. Each limiting groove 120 is distributed on the recessed position 111. The smooth surface 313 of the card wheel 310 is opposite to the recessed position 111. When the card wheel 310 rotates, the latching tooth 311 can enter and exit the recessed position 111, and when entering the recessed position 111, the latching tooth 311 slides into the corresponding limiting groove 120. And when the clamping wheel 310 rotates, the two ends of the second tooth surface 312 can abut against the two sides of the recessed position 111. For example, when the clamping wheel 310 rotates clockwise so that the latching tooth 311 is latched into the limiting groove 120, when the clamping wheel 310 rotates to a certain position, one end of the second tooth surface 312 will abut against one side of the recessed position 111, limiting the clamping wheel 310 from continuing to rotate clockwise, so that the latching tooth 311 remains latched in the limiting groove 120. When the clamping wheel 310 rotates counterclockwise so that the latching tooth 311 is disengaged from the limiting groove 120, and rotates to a certain position, the other end of the second tooth surface 312 will abut against the other end of the recessed position 111, thereby limiting the clamping wheel 310 from rotating counterclockwise. In this way, the rotation stroke of the clamping wheel 310 is limited, ensuring that the latching tooth 311 is latched or disengaged relative to the limiting groove 120.

[0035] In some embodiments of the present invention, Figure 4As shown, a protrusion 314 is provided on the card wheel 310. The protrusion 314 extends out along the axial direction of the card wheel 310. A plurality of latch teeth 311 are provided on the protrusion 314. The latch teeth 311 are arranged in sequence along the height direction of the guide column 110. Adjacent latch teeth 311 can be arranged closely together or at intervals. When the card wheel 310 rotates, the latch teeth 311 will synchronously slide into the relative limiting grooves 120. The plurality of latch teeth 311 and the plurality of limiting grooves 120 are engaged, thereby ensuring the stability of the card wheel 310's engagement support for the lifting seat 200.

[0036] The limit slot 120 is tilted, and the latch 311 is in the shape of a screw thread. When the latch 311 slides into the limit slot 120 and continues to rotate, the latch 311 can slide along the oblique direction of the limit slot 120, thereby driving the lifting seat 200 to fine-tune the height relative to the guide column 110 in the height direction, thereby fine-tuning the size of the clamping opening 130 to ensure the clamping force of the clamping opening 130 on the table top.

[0037] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the pillow assembly 400 is reversibly mounted on the top of the lifting seat 200. According to the reversing position of the pillow assembly 400, the lifting adjustment mechanism has at least the function of correcting the sitting posture and serving as a prone sleeping position. Figure 1 As shown, the pillow assembly 400 is turned downward, and the pillow assembly 400 faces the user's chest. When the user reads or writes, the pillow assembly 400 can limit the relative position of the user and the desktop, thereby achieving the function of correcting the sitting posture. Figure 2 As shown, the pillow assembly 400 is turned upward, and the user can put the head or face on the pillow assembly 400, thereby achieving the function of sleeping prone.

[0038] Further, such as Figure 1 , Figure 2 and Figure 3 As shown, the pillow assembly 400 includes a pillow 410 and a flip seat 420. The flip seat 420 is rotatably mounted on the top of the lifting seat 200, and the pillow 410 is slidably connected to the flip seat 420. The pillow assembly 400 is flipped up and down relative to the lifting seat 200 through the flip seat 420. After flipping, the pillow 410 can slide relative to the flip seat 420 to adjust the position of the pillow 410. Figure 1 As shown, the position of the pillow assembly 400 corresponds to the above-mentioned sitting posture adjustment function. The sliding direction of the pillow 410 relative to the flip seat 420 is consistent with the lifting direction of the lifting seat 200, that is, the pillow 410 can be lifted and lowered relative to the flip seat 420, thereby changing the height of the pillow 410. Figure 2As shown, the position of the pillow assembly 400 corresponds to the above-mentioned prone sleeping function. The sliding direction of the pillow 410 relative to the flip seat 420 is perpendicular to the lifting direction of the lifting seat 200, that is, the pillow 410 can be translated relative to the direction of approaching or moving away from the user to meet the user's prone sleeping position.

[0039] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lifting and lowering adjustment mechanism, characterized in that: include: A base (100), wherein a guide column (110) is provided on the base (100), and the guide column (110) is provided with a plurality of limiting grooves (120) arranged in sequence along a height direction of the guide column (110); A lifting seat (200), the lifting seat (200) being connected to the guide column (110) in a liftable manner, and a clamping opening (130) which can change in size as the lifting seat (200) is lifted or lowered is defined between the base (100) and the lifting seat (200); A fixing assembly (300), the fixing assembly (300) comprising a clamping wheel (310), the clamping wheel (310) being rotatably mounted on the lifting seat (200), and the clamping wheel (310) being provided with clamping teeth (311); A pillow assembly (400) mounted on the lifting seat (200); When the locking wheel (310) rotates, the locking tooth (311) can be locked on the limiting groove (120) corresponding to the current height position to limit the lifting seat (200) from lifting relative to the base (100), or the locking tooth (311) can be separated from the limiting groove (120) to enable the lifting seat (200) to be lifted relative to the base (100).

2. The lifting and lowering adjustment mechanism according to claim 1, characterized in that: The fixing assembly (300) further comprises a knob (320) which is rotatably mounted on the lifting seat (200); a first tooth surface (321) is provided on the peripheral wall of the rotating shaft of the knob (320); a second tooth surface (312) is provided on the peripheral wall of the clamping wheel (310); the first tooth surface (321) and the second tooth surface (312) are meshed for transmission.

3. The lifting and lowering adjustment mechanism according to claim 2, characterized in that: The second tooth surface (312) is an incomplete tooth surface on the peripheral wall of the clamping wheel (310); a position on the clamping wheel (310) other than the second tooth surface (312) is set as a smooth surface (313); the clamping tooth (311) is located on the side where the smooth surface (313) is located; a recessed position (111) is provided on the guide column (110); the recessed position (111) extends along the height direction of the guide column (110); each of the limiting grooves (120) is distributed in the recessed position (111); the smooth surface (313) is opposite to the recessed position (111); and both ends of the second tooth surface (312) can rotate with the clamping wheel (310) to abut against two sides of the recessed position (111) to limit the rotation stroke of the clamping wheel (310).

4. The lifting and lowering adjustment mechanism according to claim 1, characterized in that: The clamping wheel (310) is provided with a protruding portion (314) extending in the axial direction, and the protruding portion (314) is provided with a plurality of the clamping teeth (311) arranged in sequence along the height direction of the guide column (110).

5. The lifting and lowering adjustment mechanism according to claim 1, 3 or 4, characterized in that: The limiting groove (120) is arranged obliquely, and the latching teeth (311) are in the shape of screw teeth.

6. The lifting and lowering adjustment mechanism according to claim 1, characterized in that: The pillow assembly (400) is installed on the top of the lifting seat (200) in a flippable manner.

7. The lifting and lowering adjustment mechanism according to claim 6, characterized in that: The pillow assembly (400) comprises a pillow (410) and a flip seat (420), wherein the flip seat (420) is rotatably mounted on the top of the lifting seat (200), and the pillow (410) is slidably connected to the flip seat (420).

8. A sitting posture corrector, characterized in that: It comprises the lifting and lowering adjustment mechanism according to any one of claims 1 to 7.

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