Office table with lying plate locking device

Abstract

The invention discloses an office table with a lying plate locking device, which comprises a lying plate, a fluid damping unit and a damping adjusting device, wherein one end of the lying plate is rotatably connected to a tabletop plate around a pivot, the fluid damping unit is operably connected with the lying plate and the tabletop plate, and the damping adjusting device is arranged on the fluid damping unit. The fluid damping unit is configured to not apply damping force to the lying plate when the lying plate rotates around the pivot in the first rotation direction and apply damping force to the lying plate when the lying plate rotates around the pivot in the second rotation direction opposite to the first rotation direction. The damping adjusting device is configured to start the fluid damping unit to adjust the damping force and close the fluid damping unit to lock the groveling plate. When the fluid damping unit is started, damping force can be provided in the process that the lying plate rotates to the initial position, the situation that the lying plate suddenly accelerates to rotate and collides with a user or the lower bottom face of the table top plate is prevented, the fluid damping unit can be closed so that the fluid damping force can be infinitely large, the lying plate can be locked, the angle of the lying plate can be fixed, and the sleeping posture requirements of different users can be met.

Description

Technical Field

[0001] The invention relates to the technical field of office supplies, in particular to a desk with a lying board locking device. Background Art

[0002] Office desks are the workplace for many people in the workplace. As people have higher and higher requirements for office comfort, the demand for multi-functional desks is also increasing. Therefore, it is necessary to add other service functions to office desks to improve the office experience and increase the advantages of office desks in market competition.

[0003] Usually, during lunch break, workers will lie on their desks to take a nap due to space or other conditions, which is uncomfortable and prone to numbness in their hands. Therefore, it is necessary to propose an office desk that can solve the above technical problems. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a desk with a lying board locking device, comprising:

[0005] A table body, comprising a table top plate, wherein the table body has an upper space above the table top plate and a lower space below the table top plate;

[0006] A body board, comprising a pivot, one end of the body board being rotatably connected to the bottom surface of the table top around a pivot axis of the pivot, and being configured to be completely located in the lower space when the body board is located in an initial position and to be at least partially located in the upper space when the body board is rotated to a working position along a first rotation direction;

[0007] a fluid damping unit operatively connected to the body board and the table top, the fluid damping unit being configured to selectively apply a damping force to the pivot axis when the body board rotates about the pivot axis in the first rotational direction or in a second rotational direction opposite to the first rotational direction;

[0008] A damping adjustment device is provided on the fluid damping unit, and is configured to activate the fluid damping unit and adjust the damping force of the fluid damping unit and close the fluid damping unit to lock the body board so that the body board cannot rotate around the pivot axis.

[0009] Furthermore, the fluid damping unit comprises:

[0010] an inner member fixedly connected to the pivot;

[0011] An outer member, fixedly connected to the desktop panel, a fluid cavity is formed between the outer member and the inner member, and the fluid cavity is filled with a viscous fluid;

[0012] a first damper connected to the inner member and located in the fluid cavity, wherein a first damping gap is formed between the first damper and an inner wall of the outer member;

[0013] The second damper is connected to the outer member and is located in the fluid cavity, and a second damping gap is formed between the second damper and the inner member.

[0014] Furthermore, the damping adjustment device comprises:

[0015] A first damping adjustment mechanism is configured to adjust the size of the first damping gap, and the first damping adjustment mechanism comprises:

[0016] a first oblique wedge, at least partially slidably disposed in a first hole of the inner member and connected to the first damper, wherein the first hole is disposed along a radial direction of the fluid chamber;

[0017] a second oblique wedge block, slidably disposed in the second hole of the pivot, the second oblique wedge block being configured to drive the first oblique wedge block to slide along the first hole to adjust the size of the first damping gap through the oblique wedge cooperation between the first oblique wedge block and the second oblique wedge block;

[0018] A first return spring is disposed in the first hole, and the first return spring is configured to connect the inner member and the first oblique wedge block so as to always apply an elastic force to the first oblique wedge block toward the second oblique wedge block.

[0019] Furthermore, the first damping adjustment mechanism further includes:

[0020] The first adjusting member is threadedly disposed in the second hole or slidably disposed in the second hole, and the first adjusting member can push the second inclined wedge block to slide in the second hole.

[0021] Furthermore, a first matching hole is opened on the side wall of the inner component, the first matching hole is connected to the first hole, the first damper is partially slidingly sealed and arranged in the first matching hole, and the part of the first damper located in the first matching hole is connected to the first inclined wedge block.

[0022] Furthermore, the damping adjustment device further comprises:

[0023] A second damping adjustment mechanism is configured to adjust the size of the second damping gap, and the second damping adjustment mechanism comprises:

[0024] a third hole, disposed on the side wall of the purchased component, the third hole extending in the radial direction of the fluid cavity;

[0025] a second adjusting member, threadedly disposed in the third hole or slidably disposed in the third hole, and the second threaded adjusting member can drive the second damper to move toward the inner member to adjust the size of the second damping gap;

[0026] A second return spring is disposed in the third hole, and the second return spring is configured to connect the outer member and the second damper to always apply an elastic force toward the second adjusting member to the second damper.

[0027] Furthermore, the first damping adjustment mechanism further includes a first electric control component, and the first electric control component includes:

[0028] A first motor is disposed on the desktop panel;

[0029] A first rotating shaft is coaxially arranged with the pivot shaft, the first rotating shaft is connected to the output shaft of the first motor, the first rotating shaft has a first threaded end, and the first threaded end is configured to be threadedly connected with the first adjusting member to drive the first adjusting member to slide along the second hole.

[0030] Furthermore, the second damping adjustment mechanism further includes a second electric control component, and the second damping adjustment mechanism further includes a second electric control component, and the second electric control component includes:

[0031] A second motor is disposed on the desktop panel;

[0032] The second rotating shaft is connected to the second motor. The second rotating shaft has a second threaded end. The second threaded end is threadedly connected to the second adjusting member. The second adjusting member is slidably disposed on the desktop panel.

[0033] Furthermore, it also includes a controller, which is electrically connected to the first motor and / or the second motor to control the start and stop of the first motor and / or the second motor.

[0034] Furthermore, a temperature compensation device is also included, the temperature compensation device includes a variable volume component disposed in the fluid cavity, and the variable volume component is configured to adapt to the change of fluid pressure in the fluid cavity and change its volume.

[0035] The technical solution adopted by an embodiment of the present invention to solve the technical problem is:

[0036] Beneficial effects of the present invention: A desk with a lying board locking device, by providing a lying board that can be partially rotated to the top of the desktop board, is convenient for office workers to sleep on their stomachs, improve sleeping posture, and increase comfort. A fluid damping unit and a damping adjustment device are also provided. When the fluid damping unit is enabled, the user can control the damping adjustment device to adjust the damping force to provide damping force during the process of the lying board rotating to the initial position, so as to prevent the lying board from suddenly accelerating and rotating and hitting the user or the bottom surface of the desktop board; the user can also control the damping adjustment device to close the fluid damping unit, so that the fluid damping force is infinite, lock the lying board so that the lying board cannot rotate, and fix the angle of the lying board to meet the sleeping posture requirements of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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:

[0038] Figure 1 A schematic diagram of the structure of a table body provided by an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the structure of a table body and a bed board provided in an embodiment of the present invention;

[0040] Figure 3 A schematic cross-sectional structural diagram of a fluid damping unit provided in an embodiment of the present invention;

[0041] Figure 4 This is a schematic cross-sectional structural diagram of the fluid damping unit provided by an embodiment of the present invention in another direction.

[0042] Description of the symbols in the figure:

[0043] 1. Table body; 10. Table top;

[0044] 2. Lying board; 20. Pivot;

[0045] 3. Fluid damping unit; 31. Inner member; 310. First hole; 311. Second hole; 312. First matching hole; 32. Outer member; 321. Third hole; 33. First damper; 331. First damping gap; 332. Lining rigid member; 333. External elastic member; 34. Second damper; 341. Second damping gap; 35. Fluid cavity;

[0046] 4. Damping adjustment device; 41. First damping adjustment mechanism; 411. First oblique wedge block; 412. Second oblique wedge block; 413. First adjustment member; 414. First electric control assembly; 414A. First motor; 414B. First rotating shaft; 42. Second damping adjustment mechanism; 421. Second adjustment member; 422. Second electric control assembly; 421A. Second motor; 421B. Second rotating shaft;

[0047] 5. Temperature compensation device. DETAILED DESCRIPTION

[0048] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0049] In the description of the present invention, the meaning of "above", "below", "exceed", etc. is not inclusive of the number itself, and the meaning of "above", "below", "within", etc. is inclusive of the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0050] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0051] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0052] Figure 1 , Figure 2 The present invention provides an embodiment of a desk with a body board locking device, and the desk can be any type and model of desk on the market. In other words, any type and model of desk on the market can be installed with the fluid damping structure with body board 2 provided by the present application, and there is no specific limitation on this.

[0053] See also Figures 1 to 4 The present embodiment provides an office desk with a lying board locking device, comprising a desk body 1, a lying board 2, a fluid damping unit 3 and a damping adjustment device 4.

[0054] The table body 1 includes a table top plate 10, and the table body 1 has an upper space located above the table top plate 10 and a lower space located below the table top plate 10;

[0055] The body board 2 includes a pivot 20, one end of the body board 2 is rotatably connected to the bottom surface of the table top 10 around the pivot axis of the pivot 20, and is configured to be completely located in the lower space when the body board 2 is located in the initial position and at least partially located in the upper space when the body board 2 is rotated along the first rotation direction to the working position;

[0056] The fluid damping unit 3 is operatively connected to the body board 2 and the table top 10, and the fluid damping unit 3 is configured to selectively apply a damping force to the pivot 20 when the body board 2 rotates about the pivot axis in a first rotation direction or a second rotation direction opposite to the first rotation direction;

[0057] The damping adjustment device 4 is disposed on the fluid damping unit 3 and is configured to activate the fluid damping unit 3 and adjust the damping force of the fluid damping unit 3 and close the fluid damping unit 3 to lock the bodyboard 2 so that the bodyboard 2 cannot rotate around the pivot axis.

[0058] In the above design, the pivot 20 is fixedly connected to the body board 2, and the pivot 20 is rotatably connected to the desktop board 10, and the body board 2 is in a V-shaped structure as a whole, and one end of the body board 2 is rotatably connected to the lower bottom surface of the desktop board 10 around the pivot axis of the pivot 20, and the other end is located in the upper space of the desktop board 10 when in the working position and extends obliquely upward. The fluid damping unit 3 is disposed at the pivot 20 to operably connect the pivot 20 and the desktop board 10, so as to transmit the damping force to the body board 2 by applying the damping force to the pivot 20.

[0059] With such a design, the present application provides a lying board 2 that can be partially rotated above the desktop panel 10, so as to facilitate office workers to sleep on their stomachs, improve their sleeping posture, and enhance their comfort. At the same time, a fluid damping unit 3 and a damping adjustment device 4 are provided. When the fluid damping unit 3 is enabled, the user can control the damping adjustment device 4 to adjust the damping force so as to provide a damping force during the process of the lying board 2 rotating to the initial position, so as to prevent the lying board 2 from suddenly accelerating and rotating and hitting the user or the bottom surface of the desktop panel 10; the user can also control the damping adjustment device 4 to close the fluid damping unit 3 so that the fluid damping force is infinite, lock the lying board 2 so that the lying board 2 cannot rotate, and fix the angle of the lying board 2 to meet the sleeping posture requirements of different users.

[0060] The detailed structure of this application is further explained below.

[0061] like Figure 3 and Figure 4 As shown, the fluid damping unit 3 includes an internal component 31, an external component, a first damper 33 and a second damper 34.

[0062] The inner member 31 is fixedly connected to one of the table top 10 and the pivot 20;

[0063] The outer member 32 is fixedly connected to the other of the desktop panel 10 and the pivot 20 , and a fluid cavity 35 is formed between the outer member 32 and the inner member 31 , and the fluid cavity 35 is filled with a viscous fluid;

[0064] The first damper 33 is connected to the inner member 31 and is located in the fluid cavity 35 , and a first damping gap 331 is formed between the first damper 33 and the inner wall of the outer member 32 ;

[0065] The second damper 34 is connected to the outer member 32 and is located in the fluid chamber 35 . A second damping gap 341 is defined between the second damper 34 and the inner member 31 .

[0066] In the above design, a hollow fixed shaft can be set on the lower bottom surface of the desktop panel 10. The fixed shaft is fixedly connected to the desktop panel 10 and cannot rotate relative to the desktop panel 10. The pivot 20 is rotatably set inside the fixed shaft; the inner component 31 and the outer component 32 are both circular components, and a fluid cavity 35 is formed between the inner component 31 and the outer component 32; the inner component 31 is fixed to the outer wall of the pivot 20, and the outer component 32 can be fixed to the inner wall of the hollow fixed shaft, thereby forming a corresponding damping structure.

[0067] Of course, the fixed shaft can also be set inside the pivot 20, that is, the pivot 20 is a hollow shaft, and the pivot 20 is rotatably sleeved outside the fixed shaft. In this case, the fixed shaft is fixedly connected to the desktop board 10 and cannot rotate relative to the desktop board 10, and the pivot 20 is rotatably set outside the fixed shaft; the inner member 31 and the outer member 32 are both circular members, and a fluid cavity 35 is formed between the inner member 31 and the outer member 32; the inner member 31 is fixedly connected to the outer wall of the fixed shaft, and the outer member 32 can be fixed to the inner wall of the hollow pivot 20, thereby forming a corresponding damping structure.

[0068] With such a design, the first damper 33 and the second damper 34 separate the fluid chamber 35 into a first chamber and a second chamber, and the viscous fluid can flow between the first chamber and the second chamber. Of course, if the fluid damping unit 3 is to have a damping effect, the first damping gap 331 and the second damping gap 341 need to meet certain size requirements. The smaller the first damping gap 331 and the second damping gap 341, the greater the damping force, and vice versa, the smaller the damping force is or even there is no damping force.

[0069] Therefore, when the body board 2 rotates in the first rotation direction, the first damping gap 331 and the second damping gap 341 can be set to be large enough so that the first damper 33 and the second damper 34 lose their damping effect and the fluid damping unit 3 does not apply damping force to the pivot 20 .

[0070] When the bodyboard 2 rotates along the second rotation direction, the first damping gap 331 and the second damping gap 341 can be adjusted to a reasonable range, the first damper 33 rotates synchronously with the pivot 20 and increases the volume of the first chamber and decreases the volume of the second chamber, and the viscous fluid flows from the second chamber into the first chamber through the first damping gap 331 and the second damping gap 341. Since the first damping gap 331 and the second damping gap 341 are small, a corresponding damping force is generated on the first damper 33. In other words, the fluid damping unit 3 applies a damping force to the pivot 20 to form a damping effect.

[0071] like Figure 3 and Figure 4 As shown, the damping adjustment device 4 includes a first damping adjustment mechanism 41 and a second damping adjustment mechanism 42. The first damping adjustment mechanism 41 is configured to adjust the size of the first damping gap 331, and the first damping adjustment mechanism 41 includes a first inclined wedge block 411, a second inclined wedge block 412 and a first return spring.

[0072] The first inclined wedge 411 is at least partially slidably disposed in the first hole 310 of the inner member 31 and connected to the first damper 33 , and the first hole 310 is disposed along the radial direction of the fluid chamber 35 ;

[0073] The second oblique wedge block 412 is slidably disposed in the second hole 311 of the pivot shaft 20. The second oblique wedge block 412 is configured to drive the first oblique wedge block 411 to slide along the first hole 310 through the oblique wedge cooperation between the first oblique wedge block 411 and the second oblique wedge block 412 to adjust the size of the first damping gap 331. The first hole 310 extends in the radial direction of the fluid cavity 35, and the second hole 311 extends in the axial direction of the pivot shaft 20. The axes of the first hole 310 and the second hole 311 are perpendicular to each other.

[0074] The first return spring is disposed in the first hole 310 , and the first return spring is configured to connect the inner member 31 and the first oblique wedge block 411 to always apply an elastic force to the first oblique wedge block 411 toward the second oblique wedge block 412 .

[0075] In the above design, the first inclined wedge block 411 has a first inclined wedge surface, and the second inclined wedge block 412 has a second inclined wedge surface. The first inclined wedge surface and the second inclined wedge surface are slidably matched. When the second inclined wedge block 412 is pushed, the second inclined wedge surface drives the first inclined wedge block 411 to move along the first hole 310 through the first inclined wedge surface to adjust the size of the first damping gap 331.

[0076] Furthermore, in order to keep the size of the adjusted first damping gap 331 unchanged, the first damping adjustment mechanism 41 further includes a first adjustment member 413, which is threadedly disposed in the second hole 311, and the first adjustment member 413 can push the second inclined wedge block 412 to slide in the second hole 311. The first adjustment member 413 is an adjustment bolt or a first adjustment stud, and the second hole 311 is at least partially a threaded hole, so that the second inclined wedge block 412 can be driven to move along the second hole 311 by screwing the first adjustment member 413, and the locking effect of the threaded connection can be used to maintain the positions of the first inclined wedge block 411 and the second inclined wedge block 412, so that the first damping gap 331 remains unchanged at the current setting.

[0077] In addition, the first adjusting member 413 can also be slidably disposed in the second hole 311 , but the first adjusting member 413 is driven by an electric mechanism such as a motor, a cylinder, etc. and maintained at a suitable position.

[0078] like Figure 3 and Figure 4 As shown, a first matching hole 312 is provided on the side wall of the inner member 31, the first matching hole 312 is communicated with the first hole 310, a portion of the first damper 33 is slidingly sealed and disposed in the first matching hole 312, and a portion of the first damper 33 located in the first matching hole 312 is connected to the first inclined wedge block 411. The portion of the first damper 33 located in the fluid cavity 35 is an elastic member, and its material is rubber or silicone or an elastic product containing rubber / silicone, the portion located in the first matching hole 312 can be a rigid member or an elastic member, and the portion located in the fluid cavity 35 is at least partially rigid. In the present application, the first damper 33 includes an inner lining rigid member 332 and an outer elastic member 333. The inner lining rigid member 332 and the outer elastic member 333 are arranged in the fluid cavity 35, but the inner lining rigid member 332 partially extends into the first matching hole 312, the outer elastic member 333 covers the portion of the inner lining rigid member 332 located in the fluid, and the portion of the outer elastic member 333 in contact with the inner wall of the fluid cavity 35 (the inner wall of the outer member 32) is fixedly connected to the end of the inner lining rigid member 332, and the end of the outer elastic member 333 close to the inner member 31 is freely arranged. In other words, at least a portion of the end of the outer elastic member 333 that is freely arranged can be pressed against the outer wall of the inner member 31 to be compressed and elastically deformed, and does not affect the other end of the outer elastic member 333 that is fixedly connected to the outer member 32.

[0079] Such an arrangement can effectively improve the sealing performance, reduce leakage, and at the same time control the first damper 33 to have only a single damping variable, namely the first damping gap 331, thereby ensuring the damping force adjustment effect.

[0080] like Figure 4As shown, the second damping adjustment mechanism 42 is configured to adjust the size of the second damping gap 341, and the second damping adjustment mechanism 42 includes a third hole 321, a second adjustment member 421, and a second return spring.

[0081] The third hole 321 is disposed on the side wall of the purchased component, and the third hole 321 extends along the radial direction of the fluid cavity 35;

[0082] The second adjusting member 421 is threadedly disposed in the third hole 321 , and the second threaded adjusting member can drive the second damper 34 to move toward the inner member 31 to adjust the size of the second damping gap 341 ;

[0083] The second return spring is disposed in the third hole 321 , and the second return spring is configured to connect the outer member 32 and the second damper 34 to always apply an elastic force toward the second adjusting member 421 to the second damper 34 .

[0084] In the above design, the third hole 321 is at least partially a threaded hole, the second adjusting member 421 is an adjusting bolt or an adjusting stud, the part of the second damper 34 located in the fluid chamber 35 is an elastic member, and its material is rubber or silicone or an elastic product containing rubber / silicone, the part of the second damper 34 located in the third hole 321 is in contact with the second adjusting member 421, the part of the second damper 34 located in the third hole 321 is a rigid member or an elastic member, and the second damper 34 and the third hole 321 are sealed and slidably arranged, and the part of the second damper 34 located in the fluid chamber 35 is at least partially rigid. In the present application, the structure of the second damper 34 is similar to that of the first damper 33, and also includes an inner lining rigid member 332 and an outer elastic member 333, which will not be repeated here.

[0085] With such a design, the second damping gap 341 can be adjusted by screwing the second adjusting member 421 to change the magnitude of the damping force.

[0086] In addition, the second adjusting member 421 can also be slidably disposed in the second hole 311 , but the second adjusting member 421 is driven by an electric mechanism such as a motor, a cylinder, etc. and is kept in a suitable position.

[0087] It can be seen from the above design that the first damping gap 331 and the second damping gap 341 can be adjusted manually or electrically. In this embodiment, a solution using electrical adjustment is provided.

[0088] like Figure 3 and Figure 4 As shown, the first damping adjustment mechanism 41 further includes a first electric control component 414, and the first electric control component 414 includes a first motor 414A and a first rotating shaft 414B.

[0089] The first motor 414A is disposed on the desktop panel 10;

[0090] The first rotating shaft 414B is coaxially arranged with the pivot 20, and the first rotating shaft 414B is connected to the output shaft of the first motor 414A. The first rotating shaft 414B has a first threaded end, and the first threaded end is configured to be threadedly connected with the first adjusting member 413 to drive the first adjusting member 413 to slide along the second hole 311.

[0091] In the above design, the first motor 414A can be directly or indirectly fixedly arranged at the bottom of the desktop panel 10, the first rotating shaft 414B is connected to the output shaft of the first motor 414A, the first adjusting member 413 can slide linearly in the second hole 311 along the hole axis of the second hole 311, and the first adjusting member 413 is provided with an internal thread that matches the external thread of the first threaded end of the first rotating shaft 414B. Therefore, the first motor 414A can directly drive the first rotating shaft 414B to rotate, and drive the second inclined wedge block 412 to move through the threaded cooperation between the first threaded end and the internal thread of the first adjusting member 413, thereby controlling the first damping gap 331. It should be noted that the second inclined wedge block 412 can also be referred to as the first adjusting member 413, that is, the second inclined wedge block 412 can be integrally arranged with the first adjusting member 413, and the internal thread is arranged at the end of the second inclined wedge block 412.

[0092] like Figure 4 As shown, the second damping adjustment mechanism 42 further includes a second electric control component 422, and the second electric control component 422 includes a second motor 421A and a second rotating shaft 421B.

[0093] The second motor 421A is disposed on the desktop panel 10;

[0094] The second rotating shaft 421B is connected to the second motor 421A. The second rotating shaft 421B has a second threaded end. The second threaded end is threadedly connected to the second adjusting member 421 . The second adjusting member 421 is slidably disposed on the desktop panel 10 .

[0095] In the above design, the second motor 421A can also be directly or indirectly fixed at the bottom of the desktop panel 10, the second adjusting member 421 can slide linearly in the third hole 321 along the hole axis of the third hole 321, and the second adjusting member 421 is provided with an internal thread that cooperates with the external thread of the second threaded end of the second rotating shaft 421B. Therefore, the second motor 421A drives the second adjusting member 421 by driving the second output gear to rotate, thereby controlling the second damping gap 341.

[0096] Of course, in other embodiments, the second electric control assembly 422 may also include a second output gear and a second reduction gear set.

[0097] The second motor 421A is disposed on the desktop panel 10;

[0098] The second rotating shaft 421B is rotatably connected to the desktop panel 10 , and the second rotating shaft 421B has a second threaded end, and the second threaded end is threadedly connected to the second adjusting member 421 ;

[0099] The second output gear is connected to the second rotating shaft 421B and is configured to drive the second rotating shaft 421B to rotate;

[0100] The second reduction gear set is disposed in the load path between the second motor 421A and the second output gear.

[0101] In the above embodiment, the second output gear is connected to the second adjusting member 421, the second rotating shaft 421B can be rotatably connected to the desktop panel 10 through a structure such as a bracket, the second output gear is connected to the second rotating shaft 421B, the second adjusting member 421 can slide linearly in the third hole 321 along the hole axis of the third hole 321, and the second adjusting member 421 is provided with an internal thread that matches the external thread of the second threaded end of the second rotating shaft 421B, and the second reduction gear set is provided in the load path between the second motor 421A and the second output gear, for reducing the speed of connecting the second motor 421A and the second output gear. Therefore, the second motor 421A drives the second adjusting member 421 by driving the second output gear to rotate, thereby controlling the second damping gap 341.

[0102] Furthermore, in order to facilitate the user to operate the first motor 414A and the second motor 421A, a controller is also provided, and the controller is electrically connected to the first motor 414A and / or the second motor 421A to control the start and stop of the first motor 414A and / or the second motor 421A. In this embodiment, the controller is configured as at least one key switch, and the at least one key switch is electrically connected to the first motor 414A and the second motor 421A, and the at least one key switch can be provided at any other position of the desktop panel 10 or the table body 1 that is convenient for the user to operate, such as the upper surface of the desktop panel 10. Thus, the user can decide whether to enable or disable the fluid damping unit 3 by pressing at least one key switch, so as to adjust the damping force or lock the body board 2 to prevent the body board 2 from rotating or cancel the fluid damping.

[0103] Furthermore, if the damping function is used for a long time, the viscous fluid will heat up and expand. If the expansion is not controlled, the service life of the fluid damping unit 3 may be affected. Therefore, the office desk with a bed board locking device provided by the present application also includes a temperature compensation device 5, which includes a variable volume component disposed in the fluid cavity 35, and the variable volume component is configured to adapt to the change of the fluid pressure in the fluid cavity 35 and change its volume.

[0104] In the present application, the variable volume component may be in the shape of a cube, a cylinder, a truncated cone, a sphere, etc., and the variable volume component is configured so that its volume can further shrink or expand under the action of fluid pressure. In this embodiment, the shape of the variable volume component is preferably a sphere, and a certain amount of gas is filled inside it, so that the variable volume component has a certain initial pressure. When the viscous fluid is heated and expanded, the fluid pressure is further increased and greater than the initial pressure, and the variable volume component is adaptively compressed so that the fluid cavity 35 has a larger spatial volume to adapt to the temperature increase and expansion of the viscous fluid.

[0105] Further, the position of the variable volume member in the fluid chamber 35 may be fixed or not fixed, and may be set at any position in the fluid chamber 35 or may float with the flow of the fluid. However, in general, since the rotation angle of the bodyboard 2 does not exceed 180°, the position of the variable volume member is preferably within the range of 180° to 360° in the fluid chamber 35.

[0106] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A desk with a locking device for a lying plate, characterized in that: include: A table body (1) comprises a table top plate (10), wherein the table body (1) has an upper space located above the table top plate (10) and a lower space located below the table top plate (10); A body board (2) comprising a pivot (20), one end of the body board (2) being rotatably connected to the bottom surface of the table top (10) around the pivot axis of the pivot (20), and being configured to be completely located in the lower space when the body board (2) is located in an initial position and at least partially located in the upper space when the body board (2) is rotated along a first rotation direction to a working position; a fluid damping unit (3) operatively connected to the body board (2) and the table top (10), wherein the fluid damping unit (3) is configured to selectively apply a damping force to the pivot (20) when the body board (2) rotates about the pivot axis in the first rotation direction or in a second rotation direction opposite to the first rotation direction; A damping adjustment device (4) is provided on the fluid damping unit (3), and is configured to activate the fluid damping unit (3) and adjust the damping force of the fluid damping unit (3) and to close the fluid damping unit (3) to lock the body board (2) so that the body board (2) cannot rotate around the pivot axis.

2. The office desk with a bodyboard locking device according to claim 1, characterized in that: The fluid damping unit (3) comprises: an inner member (31) fixedly connected to the pivot (20); An outer member (32) is fixedly connected to the desktop panel (10), a fluid cavity (35) is formed between the outer member (32) and the inner member (31), and the fluid cavity (35) is filled with a viscous fluid; a first damper (33) connected to the inner member (31) and located in the fluid chamber (35), wherein a first damping gap (331) is provided between the first damper (33) and the inner wall of the outer member (32); A second damper (34) is connected to the outer member (32) and is located in the fluid chamber (35); a second damping gap (341) is provided between the second damper (34) and the inner member (31).

3. The office desk with a bed plate locking device according to claim 2, characterized in that: The damping adjustment device (4) comprises: A first damping adjustment mechanism (41) is configured to adjust the size of the first damping gap (331), and the first damping adjustment mechanism (41) comprises: a first inclined wedge (411) at least partially slidably disposed in a first hole (310) of the inner member (31) and connected to the first damper (33), wherein the first hole (310) is disposed along a radial direction of the fluid chamber (35); a second oblique wedge block (412) slidably disposed in the second hole (311) of the pivot (20), the second oblique wedge block (412) being configured to drive the first oblique wedge block (411) to slide along the first hole (310) to adjust the size of the first damping gap (331) through the oblique wedge cooperation between the first oblique wedge block (411) and the second oblique wedge block (412); A first return spring is disposed in the first hole (310), and the first return spring is configured to connect the inner member (31) and the first inclined wedge block (411) so as to always apply an elastic force to the first inclined wedge block (411) toward the second inclined wedge block (412).

4. The office desk with a bed plate locking device according to claim 3, characterized in that: The first damping adjustment mechanism (41) further comprises a first adjustment member (413) which is threadedly disposed in the second hole (311) or slidably disposed in the second hole (311), and the first adjustment member (413) can push the second inclined wedge block (412) to slide in the second hole (311).

5. The office desk with a bed plate locking device according to claim 4, characterized in that: A first matching hole (312) is provided on the side wall of the inner component (31), the first matching hole (312) is communicated with the first hole (310), a portion of the first damper (33) is slidingly sealedly disposed in the first matching hole (312), and a portion of the first damper (33) located in the first matching hole (312) is connected to the first inclined wedge block (411).

6. The office desk with a bodyboard locking device according to claim 2, characterized in that: The damping adjustment device (4) further comprises: A second damping adjustment mechanism (42) is configured to adjust the size of the second damping gap (341), and the second damping adjustment mechanism (42) comprises: A third hole (321) is provided on the side wall of the purchased component, and the third hole (321) extends along the radial direction of the fluid cavity (35); a second adjusting member (421) threadedly disposed in the third hole (321) or slidably disposed in the third hole (321), and the second threaded adjusting member can drive the second damper (34) to move toward the inner member (31) to adjust the size of the second damping gap (341); A second return spring is disposed in the third hole (321), and the second return spring is configured to connect the outer member (32) and the second damper (34) so ​​as to always apply an elastic force toward the second adjusting member (421) to the second damper (34).

7. The office desk with a bed plate locking device according to claim 4, characterized in that: The first damping adjustment mechanism (41) further comprises a first electric control component (414), wherein the first electric control component (414) comprises: A first motor (414A) is disposed on the desktop panel (10); A first rotating shaft (414B) is coaxially arranged with the pivot shaft (20), the first rotating shaft (414B) is connected to the output shaft of the first motor (414A), and the first rotating shaft (414B) has a first threaded end, and the first threaded end is configured to be threadedly connected to the first adjusting member (413) to drive the first adjusting member (413) to slide along the second hole (311).

8. The office desk with a bed plate locking device according to claim 6, characterized in that: The second damping adjustment mechanism (42) further comprises a second electric control component (422), wherein the second electric control component (422) comprises: A second motor (421A) is disposed on the desktop panel (10); The second rotating shaft (421B) is connected to the second motor (421A), and the second rotating shaft (421B) has a second threaded end, and the second threaded end is threadedly connected to the second adjusting member (421), and the second adjusting member (421) is slidably disposed on the desktop panel (10).

9. The office desk with a bed plate locking device according to claim 7 or 8, characterized in that: It also includes a controller, which is electrically connected to the first motor (414A) and / or the second motor (421A) to control the start and stop of the first motor (414A) and / or the second motor (421A).

10. The office desk with a bed plate locking device according to claim 1, characterized in that: It also includes a temperature compensation device (5), which includes a variable volume component arranged in the fluid chamber (35), and the variable volume component is configured to adapt to the change of fluid pressure in the fluid chamber (35) and change its volume.

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