CN212280729U

CN212280729U - Table plate angle adjusting mechanism

Info

Publication number: CN212280729U
Application number: CN202021688707.3U
Authority: CN
Inventors: 刘阳波; 许连平
Original assignee: Suspa Nanjing Vibration Damping System Co ltd
Current assignee: Suspa Nanjing Vibration Damping System Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-01-05
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a table angle adjustment mechanism, include: the angle adjusting assembly is connected between the table plate and the table frame and used for adjusting the angle of the table plate rotating relative to the table frame by taking a first axis as an axis, the angle adjusting assembly comprises a first connecting rod and a locking mechanism, the locking mechanism comprises a gear ring connected with the table frame and a pawl connected with the first connecting rod, the first connecting rod is connected with the table plate, the first connecting rod is rotatably connected with the gear ring, when the locking mechanism is in a locking position, the table plate can select any angle and can realize rigid locking, and the table plate is firmly supported; when the locking mechanism is at the unlocking position, the table plate can slowly descend, the operation is simple, and the closing of the table plate is convenient.

Description

Table plate angle adjusting mechanism

[ technical field ] A method for producing a semiconductor device

The utility model relates to an angle adjustment mechanism technical field, in particular to table angle adjustment mechanism.

[ background of the invention ]

At present, in the current society, along with the enhancement of consciousness of people on healthy growth of children, more and more parents can provide the desk with the function of overturning the desk plate for the children so as to meet different use scenes such as writing, reading books, drawing and the like of the children. Based on the above usage scenarios, the angle adjustment structure of the movable table plate is required to be stable, the support is reliable, and the operation is convenient. The angle adjustment methods in the market at present include the following two methods:

first, a slider and rack mating approach is used. The adjustable stage number of the angle adjusting mode is few and generally does not exceed 13 stages. Moreover, the structure is troublesome to unlock, and the table plate needs to be adjusted to a larger angle to unlock, so that the table top can be flatly placed.

Second, hydraulic lever support adjustment is used. In the supporting mode, when the angle is small, particularly less than 10 degrees, the angle between the hydraulic rod and the table plate is too small, the component force in the supporting direction is insufficient, the hydraulic rod cannot be rigidly locked, and the table top can shake, and the angle less than 10 degrees is just the most commonly used angle for writing and reading, so that the shaking greatly influences the user experience; moreover, the hydraulic rod has a large internal pressure, giving an unsafe feeling.

And the desk that can overturn all has fixed table generally, when two kinds of modes unblock, all need hold the movable table board and be close to one side of fixed table board, if can crowd the hand carelessly, it is very inconvenient to use.

Accordingly, there is a need to provide an improved table angle adjustment mechanism and method to solve the above problems.

[ Utility model ] content

The utility model discloses to the problem that prior art exists, need a table angle adjustment mechanism, can all realize the rigidity locking in any angle locking position, the table supports firmly, unblock convenient operation, and the unblock back table is slowly closed.

In order to solve the above problem, the utility model provides a table angle adjustment mechanism, include: the angle adjusting assembly is connected between the table and the table frame and used for adjusting the angle of the table rotating relative to the table frame by taking a first axis as an axis, the angle adjusting assembly comprises a first connecting rod and a locking mechanism, the locking mechanism comprises a gear ring connected with the table frame and a pawl connected with the first connecting rod, the first connecting rod is connected with the table, the first connecting rod is rotatably connected with the gear ring, and when the locking mechanism is in a locking state, the circumferential position of the pawl relative to the gear ring is locked, so that the angle of the table relative to the table frame is locked, or/and the pawl can rotate relative to the gear ring in one direction, so that the table can rotate relative to the table frame in one direction; when the locking mechanism is in an unlocked state, the pawl can rotate relative to the gear ring at least in the other direction, so that the table can rotate relative to the table frame at least in the other direction, and the rotation of the pawl in the other direction is released, wherein the locking mechanism is used for locking the table to rotate in the other direction.

Further, the table angle adjusting mechanism further comprises an operating piece, and the operating piece can operate the pawl to move between the locking position and the unlocking position.

Furthermore, the operating part comprises a linkage line, one end of the linkage line is connected to the pawl, the other end of the linkage line is connected with the operating part, and when the operating part is pulled, the linkage line drives the pawl to move in the direction away from the gear ring.

Further, the operation part is close to one side where the table plate is connected with the table frame.

Further, the pawl is elastically preloaded toward the ring gear.

Furthermore, the first connecting rod is connected with or formed with a positioning device, the pawl is movably arranged in an accommodating cavity formed by the positioning device, one end of the pawl is in a wedge shape, and one end of the pawl is matched with the accommodating cavity in shape.

Furthermore, at least part of the periphery of the gear ring and the end face, matched with the pawl and the gear ring, of the pawl is provided with meshing teeth, and the pawl and the meshing teeth of the gear ring are meshed with each other to realize locking of the locking mechanism.

Furthermore, the angle adjusting assembly is also provided with a second connecting rod and a connecting plate, the second connecting rod is movably connected with the first connecting rod, the connecting plate is movably connected with the second connecting rod, and the connecting plate is connected with the table board.

Further, table angle adjustment mechanism still has linear damping subassembly, linear damping subassembly includes linking arm, slider, linear damper, linking arm one end swivelling joint first connecting rod, the other end connect in the slider, a plurality of linear dampers are installed to the one end of slider after the locking mechanism unblock, first connecting rod for the ring gear rotates, makes the linking arm promotes the slider to linear damper's direction slides, the slider extrusion linear damper realizes first connecting rod drives the slowly falling of table.

Further, table angle adjustment mechanism still has rotary damper, rotary damper connect in the ring gear, first connecting rod for when the ring gear rotates, first connecting rod drives rotary damper rotates with damping, realizes first connecting rod drives the slow descending of table.

Moreover, when the locking mechanism in the scheme of the utility model is used at the locking position, the desk plate can be selected at any angle and can realize rigid locking, and the desk plate is fixed firmly; when the locking mechanism is in the unlocking position, the operation is simple, and the closing of the table plate is convenient.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the table angle adjusting mechanism of the present invention.

Fig. 2 is an exploded view of the angle adjusting assembly of the present invention.

FIG. 3(a) is an exploded view of the pawl of FIG. 2 in an unlocked position in accordance with the present invention; fig. 3(b) is a partial exploded view of the pawl of fig. 2 in a locked position according to the present invention.

Fig. 4 is a schematic structural diagram of the table angle adjusting mechanism of the present invention with a linear damping assembly.

Fig. 5 is a schematic structural diagram of another embodiment of the table angle adjusting mechanism of the present invention.

[ detailed description ] embodiments

The directional terms of the present invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only directions in the drawings, and are only used for explaining and explaining the present invention, but not for limiting the scope of the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment of the present invention, the table angle adjusting mechanism includes a table 3, a table frame 2, and an angle adjusting assembly 1 connected between the table 3 and the table frame 2. The table plate 3 and the table frame 2 are rotatably connected with the first axis 101 as an axis. The angle adjusting assembly 1 is used for adjusting the angle of the table plate 3 rotating relative to the table frame by taking the first axis 101 as an axis.

The angle adjustment assembly 1 has a first link 11, a second link 12, a locking mechanism 13, and a spindle 14. One end of the angle adjusting component 1 is connected with the table plate 3 through a connecting plate 5, and the other end of the angle adjusting component is connected with the table frame 2 through an installation frame 4. The mount 4 is formed on or attached to the table frame 2, and in the present embodiment, the mount 4 is attached to the table frame 2 as an example. The second connecting rod 12 is movably connected with the connecting plate 5, the first connecting rod 11 is movably connected with the second connecting rod 12, and the first connecting rod 11 is movably connected with the mounting frame 4, so that when the table plate 3 rotates relative to the table frame 2 by taking the first axis 101 as an axis, the connecting plate 5 can rotate relative to the second connecting rod 12 by taking the fourth axis 104 as an axis, the second connecting rod 12 can rotate relative to the first connecting rod 11 by taking the third axis 103 as an axis, the first connecting rod 11 can rotate relative to the mounting frame 4 by taking the second axis 102 as an axis, and the first axis, the second axis, the third axis and the fourth axis are parallel to each other. The locking mechanism 13 is used to lock the rotation of the first link 11 relative to the mounting frame 4, in this embodiment in a direction opposite to the direction a in fig. 3. The first link 11 is connected to the locking mechanism 13 via a spindle 14.

The locking mechanism 13 includes a ring gear 131, pawls 132, a positioning device 134, and a biasing member 133. The gear ring 131 is connected to the first connecting rod 11 via the mandrel 14, the first connecting rod 11 can be connected to the gear ring 131 in a rotatable manner about the second axis 102, and the gear ring 131 is fixedly connected to the mounting frame 4. The first link 11 is connected to or formed with a positioning device 134, the pawl 132 is movably mounted in a receiving cavity 1341 formed by the positioning device 134, one end of the pawl 132 is wedge-shaped, one end of the pawl 132 is form-fitted with the receiving cavity 1341, and the other end is elastically preloaded toward the ring gear 131 by the biasing element 133. In the locked state, the locking mechanism locks the rotation of the first link 11 in the direction opposite to direction a with respect to the mounting frame 4, and the position of the pawl 132 with respect to the ring gear 131 is locked; alternatively, or in addition, the pawl 132 is out of positive locking with the toothed ring 131, and the pawl can rotate relative to the toothed ring 131 in the direction a. The periphery of ring gear 131, pawl and ring gear 131 mating surface all are equipped with the meshing tooth. And the gear ring is meshed with the meshing teeth of the pawl to realize locking. The density of the meshing teeth determines the number of stages in the angle adjusting structure, and the smaller the meshing teeth, the denser the meshing teeth, and the more the number of stages of the table board 3 which can be adjusted relative to the table frame 2. The periphery of the gear ring is at least partially provided with meshing teeth.

Under the elastic action of the biasing element 133, the pawl 132 is moved in a direction approaching the ring gear 131, the pawl cooperating with the meshing teeth of the ring gear. When the first link 11 rotates the pawl 132 in the direction a in fig. 3(b), the force of the ring gear 4 is transmitted to the pawl 132, so that the pawl 132 moves away from the ring gear 131 against the elastic force of the biasing member 133, and the first link 11 rotates the pawl 132 around the ring gear 131. When the first link 11 carries the pawl 132 in a direction opposite to the direction a, the force on the toothed ring 131 is transmitted to the pawl 132, so that the pawl moves in a direction approaching the toothed ring 131, and the pawl is positioned in the wedge-shaped position of the receiving cavity, thereby locking the angle of the table 3.

During the opening of the table 3, the table 3 rotates with respect to the table frame 2, the first link 11 rotates with the spindle 14, the spindle 14 rotates in the bearing mounted to the ring gear 131, and the first link 11 rotates with respect to the ring gear 131. When the table is rotated to a proper position, the table is released by the hand, the first link 11 is forced downwards under the action of the gravity of the table, the positioning device 14 mounted on the first link 11 is also forced downwards, and the positioning device 14 drives the pawl 132 to move in the direction opposite to the direction a, so that the position of the table is locked relative to the table frame.

The operating member 6 can drive the pawl 132 in a direction away from the ring gear 131. The operating member 6 can be selected as a Bowden wire or a brake wire. The operating member 6 includes a linkage line 62 and a protective sleeve 61 covering the linkage line 62, the linkage line 62 is a steel wire rope, a first end of the linkage line 62 passes through the biasing element 133 and is connected to the pawl 132, and a second end extends out of the protective sleeve and is connected to the operating portion 63. When the table needs to be closed, the operating part 63 is pulled, so that the linkage wire 62 drives the pawl 132 to move in a direction away from the gear ring 131 against the elastic force of the second biasing element, the pawl is disengaged from the gear ring, and the table can move to the closing position. In other embodiments of the present invention, the operation portion is located at a position convenient for the user to operate, i.e. near the side where the table board is hinged to the table frame. Generally, the desk is movable table and fixed table, and if the operation portion is located and keeps away from table and table frame articulated one side, hold the movable table and be close to one side of fixed table during the unblock, can crowd one's hand if carelessly, the utility model discloses in other embodiments, set up the operation portion and be close to table and table frame articulated one side, prevent to crowd one's hand when the unblock, as shown in fig. 5.

In other embodiments of the present invention, the table angle adjusting mechanism further has a damping structure, and the damping structure can select a linear damper assembly or a rotary damper. The linear damper assembly 7 includes a connecting arm 71, a slider 72, and a linear damper 73. The connecting arm 71 has one end rotatably connected to the first link 11 and the other end connected to the slider 72. One end of the connecting arm is formed with or connected to a pin 712, and the pin 712 is fitted in a groove 721 of the slider 72. The number of linear dampers 73 mounted on one end of the slider 72 can be selected according to the required damping force. After the locking mechanism 13 is unlocked, the first connecting rod 11 drives the mandrel 14 to rotate, so that the connecting arm 71 pushes the slider 72 backwards, and the slider 72 extrudes the linear damper 23 in the backward sliding process, thereby realizing the slow descending of the table board 3 driven by the first connecting rod 11.

In other embodiments of the present invention, when the rotary damper is selected, the rotary damper is connected to the ring gear, and the bearing in the ring gear is selected as the one-way bearing. The first connecting rod 11 is connected with the one-way bearing through the mandrel 14, in the opening process of the table plate, the mandrel 14 is driven by the first connecting rod 11 to rotate, the mandrel 14 rotates in the one-way bearing, and the rotary damper does not work; during the closing process of the desk, when the operating part 6 is pulled by hand, the operating part 6 overcomes the elastic force of the biasing device and drives the pawl 132 to move in the direction away from the gear ring 131, so that the pawl 132 is disengaged from the gear ring 131, and the locking mechanism 13 is unlocked. At this moment, under the action of gravity, the first connecting rod 11 bears downward force, the first connecting rod drives the mandrel 1 to rotate, the mandrel 14 drives the one-way bearing to rotate, the one-way bearing drives the rotary damper to rotate in a damping mode, and the table is slowly released to a closed position.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A table angle adjustment mechanism comprising: the table frame comprises a table frame (2), a table plate (3) movably connected with the table frame (2), and an angle adjusting component (1) connected between the table plate (3) and the table frame (2), wherein the angle adjusting component (1) is used for adjusting the angle of the table plate (3) rotating relative to the table frame (2) by taking a first axis as an axis, the angle adjusting component (1) is characterized in that the angle adjusting component (1) comprises a first connecting rod (11) and a locking mechanism (13), the locking mechanism (13) comprises a gear ring (131) connected with the table frame (2) and a pawl (132) connected with the first connecting rod (11), the first connecting rod (11) is connected with the table plate (3), the first connecting rod (11) is rotatably connected relative to the gear ring (131), and when the locking mechanism (13) is in a locking state, the circumferential position of the pawl (132) relative to the gear ring is locked, so that the angle of the table is locked relative to the table frame, or/and the pawl is rotatable relative to the gear ring in one direction so that the table is rotatable relative to the table frame in one direction; when the locking mechanism (13) is in an unlocking state, the pawl can rotate at least in the other direction relative to the gear ring, so that the table plate can rotate at least in the other direction relative to the table frame, and the rotation of the pawl in the other direction is released, wherein the locking mechanism is used for locking the rotation of the table plate in the other direction.

2. A table angle adjustment mechanism as claimed in claim 1, characterized in that the table angle adjustment mechanism further has an operating member (6), the operating member (6) being operable to move the pawl (132) between the locked and unlocked positions.

3. The table angle adjusting mechanism as claimed in claim 2, wherein the operating member (6) comprises a linkage wire (62), one end of the linkage wire (62) is connected to the pawl (132), the other end of the linkage wire is connected to the operating portion (63), and when the operating portion is pulled, the linkage wire (62) drives the pawl (132) to move in a direction away from the gear ring (131).

4. A table angle adjustment mechanism as claimed in claim 3, wherein the operating portion is located adjacent to a side of the table to which the table is attached.

5. A table angle adjustment mechanism as claimed in claim 1, characterized in that the pawl (132) is elastically preloaded towards the toothed ring (131).

6. A table angle adjustment mechanism as claimed in claim 1, wherein the first link (11) is connected to or formed with a positioning device (134), the pawl (132) is movably mounted in a receiving cavity (1341) formed by the positioning device (134), one end of the pawl (132) is wedge-shaped, and one end of the pawl (132) is form-fitted with the receiving cavity (1341).

7. The table board angle adjusting mechanism of claim 1, wherein the periphery of the gear ring and the end surface of the pawl, which is matched with the gear ring, are at least partially provided with meshing teeth, and the pawl and the meshing teeth of the gear ring are meshed with each other to realize the locking of the locking mechanism.

8. The table angle adjustment mechanism of claim 1, wherein the angle adjustment assembly (1) further comprises a second connecting rod (12) movably connected with the first connecting rod, and a connecting plate (5) movably connected with the second connecting rod (12), wherein the connecting plate (5) is connected with the table (3).

9. Table angle adjustment mechanism according to claim 1, characterized in that the table angle adjustment mechanism further has a linear damping assembly (7), the linear damping component (7) comprises a connecting arm (71), a sliding block (72) and a linear damper (73), one end of the connecting arm (71) is rotatably connected with the first connecting rod (11), the other end of the connecting arm is connected with the sliding block (72), one end of the sliding block (72) is provided with a plurality of linear dampers (73), after the locking mechanism (13) is unlocked, the first connecting rod (11) rotates relative to the gear ring (131), so that the connecting arm (71) pushes the slider (72) to slide towards the linear damper (73), the slide block (72) extrudes the linear damper (73), so that the first connecting rod (11) drives the table plate (3) to slowly fall.

10. The table angle adjusting mechanism of claim 1, further comprising a rotary damper, wherein the rotary damper is connected to the gear ring, and when the first link rotates relative to the gear ring (131), the first link drives the rotary damper to rotate with damping, so that the first link (11) drives the table (3) to slowly descend.