WO2023193555A1

WO2023193555A1 - Panel angle adjusting mechanism and angle adjustable table having same

Info

Publication number: WO2023193555A1
Application number: PCT/CN2023/079552
Authority: WO
Inventors: 尤小东; 王宏军
Original assignee: 尤小东
Priority date: 2022-04-08
Filing date: 2023-03-03
Publication date: 2023-10-12
Also published as: CN114718955B; CN114718955A

Abstract

The present invention provides a panel angle adjusting mechanism and an angle adjustable table having same. The panel angle adjusting mechanism comprises: a base, first tooth-shaped parts being provided on the base; a connecting member, the connecting member being rotatably arranged relative to the base; and adjusting members, second tooth-shaped parts being provided on the adjusting members, the adjusting members being rotatably connected to the connecting member, and the second tooth-shaped parts having a locking position engaged with the first tooth-shaped parts and an unlocking position disengaged from the first tooth-shaped parts. The technical solution of the present invention can solve the problem in the prior art of panel shake caused by the gap of an angle adjusting structure being too large.

Description

Panel angle adjustment mechanism and angle-adjustable table with same

Cross-references to related applications

This application claims priority to the Chinese invention patent application with application number 202210366701.1 submitted on April 8, 2022, the content of which is incorporated into this application by reference.

Technical field

The present invention relates to the technical field of angle adjustment mechanisms. Specifically, it relates to a panel angle adjustment mechanism and an angle-adjustable table having the same.

Background technique

At present, existing panel angle adjustment mechanisms usually use a shaft pin to match the mounting hole to achieve angle adjustment and locking. However, the shaft hole has a certain fit gap, and it is difficult to ensure a complete fit between the outer wall surface of the shaft pin and the inner wall surface of the mounting hole. , there is usually a certain gap. During the process of adjusting the panel angle, it is unavoidable that the shaft pin moves in the mounting hole. Therefore, the panel angle adjustment mechanism using this structure is prone to problems such as panel shaking and unstable connection.

Contents of the invention

The main purpose of the present invention is to provide a panel angle adjustment mechanism and an angle-adjustable table with the same, so as to solve the problem in the prior art that the excessive gap of the angle adjustment structure causes the panel to shake.

In order to achieve the above object, according to one aspect of the present invention, a panel angle adjustment mechanism is provided, which includes: a base, a first toothed portion is provided on the base; a connecting piece, the connecting piece is rotatably arranged relative to the base ; Adjusting member, the adjusting member is provided with a second toothed portion, the adjusting member is rotatably connected to the connecting piece, the second toothed portion has a locking position that meshes with the first toothed portion and a locking position that is disengaged from the first toothed portion Unlock location.

Further, the adjusting member is pivotally connected to the connecting piece through a pivot axis, and the panel angle adjustment mechanism further includes: a handle, which is rotatably arranged relative to the connecting piece, and the handle is configured to drive the second toothed portion in the unlocking position and the locking position. switch between.

Further, the adjusting member is provided with first and second spaced abutting parts, and the handle has a first position abutting the first abutting part and a second position abutting the second abutting part. , when the handle is in the first position, the second toothed portion is in the locking position; when the handle is in the second position, the second toothed portion is in the unlocking position.

Further, the first contact portion and the second contact portion define a limiting groove that cooperates with one end of the handle.

Further, the limiting groove includes a first arcuate surface connecting the first abutment part and the second abutment part, and one end of the handle is provided with a second arcuate surface that cooperates with the first arcuate surface; or, the first abutment part The length L1 of the contact portion is greater than the length L2 of the second contact portion.

Further, the first tooth-shaped part is an arc-shaped tooth, and the second tooth-shaped part is an arc-shaped tooth or a strip-shaped tooth; or, the first tooth-shaped part is a strip-shaped tooth, and the second tooth-shaped part is a strip-shaped tooth. It is curved tooth shape.

Furthermore, the panel angle adjustment mechanism further includes an elastic member disposed between the handle and the connecting piece, and the elastic member exerts a force on the adjusting member to keep the second toothed portion in the locking position.

Further, the elastic member is a torsion spring, one end of the elastic member is passed through the handle, and the other end is in contact with the connecting piece.

Further, there are two first toothed parts, and the two first toothed parts are arranged on both sides of the base; there are also two adjusting parts, and the two second toothed parts on the two adjusting parts are connected with the two The first toothed portion is provided correspondingly, and the two adjusting parts are slidably matched with one end of the handle.

Further, the connecting piece includes two opposite side walls and a top wall connecting the two side walls. The two side walls and the top wall define an accommodation cavity, and the base and the handle are located in the accommodation cavity.

According to another aspect of the present invention, an angle-adjustable table is provided, including: table legs, a panel, and a panel angle adjustment mechanism, wherein the base is connected to the table legs, and the connecting piece is connected to the panel.

By applying the technical solution of the present invention, when the adjusting member is operated to separate the first toothed portion and the second toothed portion, the end of the connecting piece connected to the adjusting piece can move freely, and the connecting piece can rotate relative to the base, thereby achieving The effect of adjusting the panel angle; when the adjusting member is operated to engage the first toothed part and the second toothed part, the second toothed part is in the locking position. At this time, one end of the connecting piece and the adjusting piece is locked, and the connecting piece It cannot be rotated relative to the base, which fixes the connection at this tilt angle. Compared with the existing method of fitting the central shaft hole, the tooth-shaped meshing method is adopted, and the gap between the teeth is smaller. In this way, when the panel is adjusted to a certain angle, the problem caused by the excessive gap at the meshing point can be avoided. The problem of panel shaking can be eliminated, thereby improving the stability of the panel; at the same time, a first toothed portion and a second toothed portion are respectively provided on the base and the adjusting member. Through the cooperation of the two toothed portions, the panel angle can be increased. Adjust the adjustment gear of the mechanism to achieve accurate adjustment.

Description of the drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 shows a schematic structural diagram of an embodiment of a panel angle adjustment mechanism according to the present invention (where the connecting piece is not assembled);

Figure 2 shows an exploded view of the panel angle adjustment mechanism of Figure 1;

Figure 3 shows a schematic structural view of the adjustment member of the panel angle adjustment mechanism of Figure 1;

Figure 4 shows a schematic structural diagram of an embodiment of an angle-adjustable table according to the present invention;

Figure 5 shows a rear view of the angle-adjustable table of Figure 4 (with the second toothed portion in a locked position); and

Figure 6 shows a rear view of the angle-adjustable table of Figure 4 (with the second toothed portion in an unlocked position).

Among them, the above-mentioned drawings include the following reference signs:
10. Connector; 11. Side wall; 12. Top wall; 13. Accommodation cavity; 20. Handle; 21. Second arc surface; 22. Contact end; 23. Operating end; 24. Through hole; 50 , elastic member; 51, spring sleeve; 60, adjusting member; 61, first contact part; 62, second contact part; 63, limit groove; 631, first arc surface; 64, second tooth Shape part; 70, base; 71, first toothed part; 80, first pivot member; 81, pivot shaft; 82, locking member; 83, second pivot member; 90, roller; 100, table Legs; 101, first column; 102, second column; 200, panel; 300, support.

Detailed ways

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that the panel angle adjustment mechanism of the present invention can be applied to angle adjustment of various products such as table boards and electronic products.

As shown in Figures 1 and 2, embodiments of the present invention provide a panel angle adjustment mechanism. The panel angle adjustment mechanism includes a base 70, a connecting piece 10 and an adjusting piece 60. The base 70 is provided with a first toothed portion 71; the connecting piece 10 can be connected to the panel, and the connecting piece 10 is rotatable relative to the base 70. The adjusting member 60 is provided with a second toothed portion 64. The adjusting member 60 is rotatably connected to the connecting member 10. The second toothed portion 64 has a locking position that engages with the first toothed portion 71 and a locking position with the first toothed portion 71. The toothed portion 71 is disengaged from the unlocked position, and the adjusting member 60 is configured to maintain the second toothed portion 64 in the locked position.

In the above technical solution, one end of the connecting member 10 is pivotally connected to the base 70 through the first pivoting member 80, and the other end of the connecting member 10 is rotatably connected to the adjusting member 60. In this way, when the adjusting member 60 is operated, the third When the first toothed portion 71 and the second toothed portion 64 are disengaged, the end of the connecting member 10 connected to the adjusting member 60 can move freely, and the connecting member 10 can use the first pivoting member 80 as a pivot point relative to the base 70 Rotate, thereby achieving the effect of adjusting the panel angle; when the adjusting member 60 is operated to engage the first toothed portion 71 and the second toothed portion 64, the second toothed portion 64 is in the locked position. At this time, the connecting member 10 The end connected to the adjusting member 60 is locked, and the connecting member 10 cannot rotate relative to the base 70, so that the connecting member 10 can be fixed at the tilt angle.

Through the above arrangement, compared with the prior art method of fitting the shaft holes, tooth-shaped meshing is adopted, and the gap between the teeth is smaller. In this way, when the panel is adjusted to a certain angle, the gap due to the meshing point can be avoided. Excessive gap causes the problem of panel shaking, which can improve the stability of the panel; at the same time, a first toothed portion 71 and a second toothed portion 64 are respectively provided on the base 70 and the adjusting member 60. Through the two toothed portions In this way, the adjustment gear of the panel angle adjustment mechanism can be increased, thereby achieving accurate adjustment.

In the above solution, the base 70 is a fixed part, the connecting part 10 is a movable part pivotally connected to the base 70, and the connecting part 10 is connected to the panel so that the angle of the panel can be adjusted.

Of course, in the embodiment of the present invention not shown in the drawings, the panel angle adjustment mechanism can also be set up in this way: the base 70 is a movable part that can be connected to the panel, and the connecting piece 10 is a fixed part that can be connected to the foundation to be installed. Part, first toothed portion 71 is provided on the connecting piece 10, the base 70 is connected to the panel, the base 70 can rotate relative to the connecting piece 10, the adjusting member 60 is rotatably connected to the base 70, in this way, the second toothed portion 64 passes through the connecting piece 10 The first toothed portion 71 on the handle engages or disengages to achieve the locking or unlocking effect.

Specifically, both the first toothed portion 71 and the second toothed portion 64 include at least two spaced apart meshing teeth, such as two, three or more.

Optionally, the meshing teeth of at least one of the first tooth-shaped portion 71 and the second tooth-shaped portion 64 are inverted V-shaped, trapezoidal, rectangular, triangular, etc.

Preferably, the meshing teeth of at least one of the first toothed portion 71 and the second toothed portion 64 are triangular. The contact area between the triangular meshing teeth is smaller, so the friction force is greater. In this way, the triangular meshing teeth are The bite between them is more stable.

Preferably, the first pivot member 80 is a tension spring pin.

As shown in FIGS. 1 to 3 , in the embodiment of the present invention, the first tooth-shaped portion 71 is in the shape of an arc-shaped tooth (for example, it can be a part of a gear structure), and the second tooth-shaped portion 64 is in the shape of an elongated tooth. (That is, a rack structure). In this way, during the process of adjusting the angle of the connecting member 10, the connecting member 10 can be locked at a certain position through the mutual engagement of the meshing teeth of the first toothed portion 71 and the second toothed portion 64. angle.

In embodiments of the present invention not shown in the drawings, according to actual size and structural requirements, the first toothed portion 71 and the second toothed portion 64 can also be arranged in this way: the first toothed portion 71 is elongated. The second tooth-shaped portion 64 is an arc-shaped tooth shape; or the first tooth-shaped portion 71 and the second tooth-shaped portion 64 are both arc-shaped tooth shapes.

As shown in Figures 1 and 2, in the embodiment of the present invention, the adjusting member 60 is pivotally connected to the connecting member 10 through a pivot shaft 81. The panel angle adjustment mechanism also includes a handle 20, and the handle 20 is rotatable relative to the connecting member 10. The handle 20 is configured to drive the second toothed portion 64 to switch between the unlocking position and the locking position.

In the above technical solution, the pivot shaft 81 passes through the connecting member 10 and the adjusting member 60 in sequence and is connected to the locking member 82. The adjusting member 60 can rotate relative to the connecting member 10 with the pivot shaft 81 as the pivot point; the handle 20 passes through the first The two pivoting members 83 are pivotally connected to the connecting member 10. When the panel angle needs to be adjusted, the handle 20 is operated, and the second toothed portion 64 can be switched from the locked position to the unlocked position. The operation is simple and convenient; at this time, the connecting member 10 can Rotating relative to the base 70 can achieve the effect of adjusting the panel angle; when the connector 10 is rotated to a certain angle, the operating handle 20 can switch the second toothed portion 64 from the unlocking position to the locking position, through the first toothed portion The engagement of 71 and the second toothed portion 64 maintains the connector 10 at this angle.

It should be noted that the pivot point between the adjusting member 60 and the connecting member 10 is spaced apart from the pivot point between the connecting member 10 and the base 70 . In this way, it can be ensured that the second toothed portion 64 is in the same position as the second toothed portion 64 . When the toothed portion 71 is in the locked position, the connector 10 can be maintained at a certain angular position, so that the panel connected to the connector 10 can be maintained at a desired angle.

In embodiments of the present invention not shown in the drawings, it can also be set as follows:

There are assembly holes on the adjusting member 60 and the connecting member 10. The inner wall of the assembly hole is provided with internal threads. The bolts are inserted into the two assembly holes and are threadedly connected with the nuts. At this time, there is no need to set the handle 20 and the panel angle needs to be adjusted. When, unscrew the nut and loosen the bolt, the adjusting member 60 can be separated from the connecting member 10, that is, the adjusting member 60 can rotate relative to the connecting member 10, and the adjusting member 60 cannot Lock the connector 10 again. At this time, the connector 10 can be rotated to achieve the effect of adjusting the panel angle; when the panel is adjusted to a certain angle, one end of the adjustment member 60 engages with the first toothed portion 71 through the second toothed portion 64 , the other end of the adjusting member 60 is connected to the connecting member 10 through a bolt, so that the connecting member 10 can be fixed at this tilt angle; the bolts pass through the adjusting member 60 and the connecting member 10 in sequence and are connected to the nut, thereby further ensuring that the connecting member 10 and the adjusting member 60.

As shown in FIGS. 1 to 3 , in the embodiment of the present invention, the adjusting member 60 is provided with first and second contact portions 61 and 62 spaced apart, and the handle 20 has a first contact portion 61 and a second contact portion 62 . When the handle 20 is in the first position, the second toothed portion 64 is in the locked position; when the handle 20 is in the second position, the second toothed portion 64 is in the locked position. Shape 64 is in the unlocked position.

In the above technical solution, when the handle 20 is in the first position, the abutting end 22 of the handle 20 abuts the first abutting portion 61 on the adjusting member 60. At this time, the first toothed portion 71 and the second toothed portion 61 are in contact with each other. The shaped portion 64 is engaged, and the second toothed portion 64 is in the locking position; when the handle 20 is in the second position, the abutting end 22 of the handle 20 abuts the second abutting portion 62 on the adjusting member 60, at this time, the The first toothed portion 71 and the second toothed portion 64 are disengaged, and the second toothed portion 64 is in the unlocking position.

Through the above arrangement, the second toothed portion 64 and the first toothed portion 71 can be locked or unlocked by operating the handle 20, which is convenient for operation.

As shown in FIGS. 1 to 3 , in the embodiment of the present invention, the handle 20 is pivotally connected to the connector 10 . By pressing or lifting the handle 20 , the second toothed portion 64 can be between the unlocking position and the locking position. switch between.

In the above technical solution, the handle 20 is pivotally connected to the connecting member 10 through the second pivot member 83. Based on the "lever principle", by pressing or lifting one end of the handle 20, the other end of the handle 20 can be raised or lowered accordingly. Press, in this way, by lifting the operating end 23 of the handle 20, the contact end 22 can be pressed down and abutted with the second contact portion 62 of the adjustment member 60, thereby switching the second toothed portion 64 to the unlocking position; The operating end 23 of the pressing handle 20 and the abutting end 22 can be lifted up and come into contact with the first abutting portion 61 of the adjusting member 60, thereby switching the second toothed portion 64 to the locking position.

Through the above arrangement, pressing or lifting the handle 20 can cause the second toothed portion 64 to switch between the unlocking position and the locking position, which can further improve the ease of operation of the panel angle adjustment mechanism.

As shown in FIGS. 1 to 3 , in the embodiment of the present invention, the first contact portion 61 and the second contact portion 62 define a limiting groove 63 , and one end of the handle 20 is slidably engaged with the limiting groove 63 .

Through the above arrangement, the abutting end 22 of the handle 20 is located in the limiting groove 63 and slides with the limiting groove 63. In this way, the abutting end 22 can abut with the first abutting portion 61 or the second abutting portion 61 of the adjusting member 60. The portion 62 contacts to achieve the effect of switching between the first position and the second position. At the same time, the limiting groove 63 can also limit the abutting end 22 so that the abutting end 22 cannot easily come out of the limiting groove 63. This can prevent the handle 20 from being separated from the adjusting member 60, thereby ensuring the stability of the operation process. .

As shown in FIGS. 1 to 3 , in the embodiment of the present invention, the limiting groove 63 includes a first arc surface 631 connecting the first contact portion 61 and the second contact portion 62 , and one end of the handle 20 is provided with The second arcuate surface 21 cooperates with the first arcuate surface 631 .

In the above technical solution, the limiting groove 63 includes a first contact portion 61, a first arc surface 631 and a second contact portion 62 connected in sequence. In this way, when the handle 20 is between the first position and the second position, When switching, through the first arc surface 631 and the second The sliding fit of the arc surface 21 makes the sliding process of the handle 20 smoother and more stable, thereby further improving the operational convenience of the panel angle adjustment mechanism.

Preferably, the first arc-shaped surface 631 and the second arc-shaped surface 21 are arcs, and the center of the circle where the above-mentioned arc-shaped surfaces are located coincides with the pivot point of the handle 20. In this way, the switching process using the handle 20 is smoother.

As shown in FIGS. 1 to 3 , in the embodiment of the present invention, the length L1 of the first contact portion 61 is greater than the length L2 of the second contact portion 62 .

In the above technical solution, when the handle 20 is in contact with the first contact portion 61, an external force can also be applied to the first contact portion 61 through the handle 20 to keep the second toothed portion 64 in the locking position to ensure that the panel The stability of the angle adjustment mechanism, so that the first contact portion 61 needs to carry a greater force than the second contact portion 62, the length L1 of the first contact portion 61 is set to be greater than the second contact portion The length L2 of 62 can ensure the strength of the first contact portion 61 and the stable cooperation between the handle 20 and the first contact portion 61, thereby ensuring the stable use of the panel angle adjustment mechanism.

As shown in FIGS. 1 and 2 , in the embodiment of the present invention, the panel angle adjustment mechanism also includes an elastic member 50 disposed between the handle 20 and the connecting member 10 . The elastic member 50 exerts a force on the adjusting member 60 to make the second teeth The shaped portion 64 is in the locking position.

In the above technical solution, lifting the handle 20 can unlock the first toothed portion 71 and the second toothed portion 64, thereby adjusting the panel angle. When the connector 10 is adjusted to a certain angle, release the handle 20, and the elasticity will Under the elastic force of the member 50 , the abutting end 22 of the handle 20 can automatically rebound from the second abutting portion 62 to the first abutting portion 61 and remain pressed against the first abutting portion 61 .

Through the above arrangement, under the elastic force of the elastic member 50, on the one hand, the second toothed portion 64 can automatically switch from the unlocking position to the locking position, making the operation more convenient; on the other hand, without applying external force to the handle 20, The abutting end 22 of the handle 20 can always be pressed against the first abutting portion 61 of the adjusting member 60 , that is to say, the second toothed portion 64 of the adjusting member 60 can always remain in the locking position, thereby further ensuring the stability of the panel. Keep the ground at a certain angle.

Preferably, the elastic member 50 is a torsion spring. One end of the elastic member 50 is inserted into the through hole 24 on the handle 20 , and the other end is in contact with the inner wall surface of the connecting member 10 . In this way, the torsion spring can exert force on the adjusting member 60 The force that causes the second toothed portion 64 to be in the locked position.

At the same time, in order to make the overall structure of the device more compact, the elastic member 50 is sleeved on the outer periphery of the second pivot member 83. In order to reduce the friction and collision between the elastic member 50 and the second pivot member 83, the elastic member 50 is placed on the second pivot member 83. A spring sleeve 51 is also provided between the rotating member 83 and the elastic member 50, and the spring sleeve 51 can play a buffering and silencing role.

Of course, in embodiments of the present invention that are not shown in the drawings, the elastic member 50 and the second pivot member 83 can also be set at different positions according to actual size requirements. For example, the handle 20 can be rotated through the second pivot member. The member 83 is pivotally connected to the connecting member 10 , and the elastic member 50 is located on a side of the second pivot member 83 facing the base 70 .

As shown in Figures 1 and 2, in the embodiment of the present invention, there are two first toothed portions 71, and the two first toothed portions 71 are provided on both sides of the base 70; the adjusting member 60 also has two Two second toothed portions 64 on the two adjusting members 60 are arranged corresponding to the two first toothed portions 71 , and both adjusting members 60 are slidably matched with one end of the handle 20 .

In the above technical solution, one end of the two adjusting members 60 is rotatably connected to the connecting member 10, and the other end of the two adjusting members 60 is slidably matched with the abutting end 22 of the handle 20. In this way, when adjusting the panel angle, During the process, the two adjusting members 60 can move or rotate synchronously, so that the force of the panel angle adjusting mechanism is more balanced, which can further improve the stability of the device.

As shown in Figures 1 and 2, in the embodiment of the present invention, the connector 10 includes two opposite side walls 11 and a top wall 12 connecting the two side walls 11. The two side walls 11 and the top wall 12 A receiving cavity 13 is defined, and the base 70 and the handle 20 are located in the receiving cavity 13 .

In the above technical solution, "the base 70 and the handle 20 are located in the accommodating cavity 13" means that the base 70 and part of the handle 20 are located in the accommodating cavity 13, where the operating end 23 of the handle 20 is located outside the accommodating cavity 13. It is convenient for the user to lift or press.

Through the above settings, the entire device is smaller in size and more compact in structure, and the panel angle adjustment mechanism set up in this way can be applied to more scenes.

As shown in Figures 4 to 6, an embodiment of the present invention also provides an angle-adjustable table. The angle-adjustable table includes: table legs 100, a panel 200 and the above-mentioned panel angle adjustment mechanism, wherein the base 70 is connected to the table legs 100, and the connecting piece 10 is connected to the panel 200.

In the above technical solution, by rotating the connecting member 10, the panel 200 can rotate relative to the table leg 100, thereby achieving the effect of adjusting the inclination angle of the panel 200 relative to the table leg 100; in an optional embodiment, The bottom of the table leg 100 is provided with a support 300, and the bottom of the support 300 is also provided with a roller 90, so that the angle-adjustable table can be moved to a desired position conveniently.

Specifically, the height of the table legs 100 is adjustable. The table leg 100 includes a first upright column 101 and a second upright column 102 connected to the first upright column 101 . The first upright column 101 is disposed movably in the vertical direction relative to the second upright column 102 to adjust the height of the panel 200 .

The operating steps of the panel angle adjustment mechanism of the present invention are described below:

As shown in Figures 1 to 6, first, the operating end 23 of the handle 20 is raised, the handle 20 is switched from the first position to the second position, and the contact end 22 contacts the second contact portion 62 of the adjustment member 60. The second toothed portion 64 is disengaged from the first toothed portion 71. At this time, the connecting piece 10 can freely rotate relative to the base 70; then, since the panel 200 is connected to the connecting piece 10, the panel 200 and the connecting piece 10 can be rotated. to the required angle; when the panel 200 rotates to a certain angle, release the handle 20, and under the elastic force of the elastic member 50, the contact end 22 of the handle 20 can automatically switch to the first contact portion with the adjustment member 60 61 abuts, and the abutting end 22 can press the adjusting member 60 to keep the second toothed portion 64 in mesh with the first toothed portion 71, so that the panel 200 can be maintained at this angle.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: when the adjusting member is operated to disengage the first toothed portion and the second toothed portion, one end of the connecting member connected to the adjusting member can move freely, and the connecting piece can rotate relative to the base, thereby achieving the effect of adjusting the panel angle; when the adjusting member is operated to engage the first toothed portion and the second toothed portion, the second toothed portion is in the locked position, At this time, one end of the connecting piece connected to the adjusting piece is locked, and the connecting piece cannot rotate relative to the base, so that the connecting piece can be fixed at the tilt angle. Compared with the existing method of fitting the central shaft hole, the tooth-shaped meshing method is adopted, and the gap between the teeth is smaller. In this way, when the panel is adjusted to a certain angle, the problem caused by the excessive gap at the meshing point can be avoided. The problem of panel shaking can be eliminated, thereby improving the stability of the panel; at the same time, a first toothed portion and a second toothed portion are respectively provided on the base and the adjusting member. Through the cooperation of the two toothed portions, the panel angle can be increased. Adjust the adjustment gear of the mechanism to achieve accurate adjustment. The handle is rotatably arranged relative to the connecting piece. The adjusting piece is provided with a first abutting part and a second abutting part. The handle is pressed down or lifted up to make it abut with the first abutting part or the second abutting part. , the handle can drive the second toothed portion to switch between the locking position and the unlocking position; in addition, under the elastic force of the elastic member, on the one hand, the second toothed portion can automatically switch from the unlocking position to the locking position, and on the other hand , without applying external force to the handle, the second toothed portion of the adjustment member can always remain in the locking position, thereby further ensuring that the panel is stably maintained at a certain angle.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

A panel angle adjustment mechanism, which is characterized by including:

Base (70), the base (70) is provided with a first toothed portion (71);

The connecting piece (10) is rotatably arranged relative to the base (70);

An adjusting member (60) is provided with a second toothed portion (64). The adjusting member (60) is rotatably connected to the connecting member (10). The second toothed portion (64) is rotatably connected to the connecting member (10). The shaped portion (64) has a locking position engaged with the first toothed portion (71) and an unlocking position disengaged from the first toothed portion (71).
The panel angle adjustment mechanism according to claim 1, characterized in that the adjustment member (60) is pivotally connected to the connecting member (10) through a pivot shaft (81), and the panel angle adjustment mechanism further includes:

The handle (20) is rotatably arranged relative to the connecting piece (10), and the handle (20) is configured to drive the second toothed portion (64) to switch between an unlocking position and a locking position.
The panel angle adjustment mechanism according to claim 2, characterized in that the adjustment member (60) is provided with a first contact portion (61) and a second contact portion (62) spaced apart, and the handle (20) has a first position in contact with the first contact part (61) and a second position in contact with the second contact part (62), and the handle (20) is in the third position. When the handle (20) is in the second position, the second toothed portion (64) is in the unlocking position.
The panel angle adjustment mechanism according to claim 3, wherein the first contact portion (61) and the second contact portion (62) define a joint that cooperates with one end of the handle (20). Limit slot (63).
The panel angle adjustment mechanism according to claim 4, characterized in that the limiting groove (63) includes a first contact portion connecting the first contact portion (61) and the second contact portion (62). Arc surface (631), one end of the handle (20) is provided with a second arc surface (21) that matches the first arc surface (631); or,

The length L1 of the first contact portion (61) is greater than the length L2 of the second contact portion (62).
The panel angle adjustment mechanism according to any one of claims 1 to 5, characterized in that the first tooth-shaped part (71) is an arc-shaped tooth, and the second tooth-shaped part (64) is an arc-shaped tooth. dentate or elongated dentate; or,

The first tooth-shaped portion (71) is in the shape of an elongated tooth, and the second tooth-shaped portion (64) is in the shape of an arc-shaped tooth.
The panel angle adjustment mechanism according to any one of claims 2 to 5, characterized in that the panel angle adjustment mechanism further includes an elastic member disposed between the handle (20) and the connecting piece (10). The elastic member (50) exerts a force on the adjusting member (60) to keep the second toothed portion (64) in the locking position.
The panel angle adjustment mechanism according to claim 7, characterized in that the elastic member (50) is a torsion spring, one end of the elastic member (50) is passed through the handle (20), and the other end is connected to the handle (20). The connecting piece (10) is in contact.
The panel angle adjustment mechanism according to any one of claims 2 to 5, characterized in that there are two first toothed portions (71), and the two first toothed portions (71) are arranged on Both sides of the base (70); the adjusting member There are also two (60). The two second toothed portions (64) on the two adjusting members (60) are provided correspondingly to the two first toothed portions (71), and two The adjusting parts (60) are slidably matched with one end of the handle (20).
The panel angle adjustment mechanism according to any one of claims 2 to 5, characterized in that the connecting member (10) includes two opposite side walls (11) and connects the two side walls (11). ), the two side walls (11) and the top wall (12) define a receiving cavity (13), the base (70) and the handle (20) are located on the in the accommodation cavity (13).
An angle-adjustable table, characterized by comprising: table legs (100), a panel (200) and the panel angle adjustment mechanism according to any one of claims 1 to 10, wherein the base (70) It is connected to the table leg (100), and the connecting piece (10) is connected to the panel (200).