Lifting table

Abstract

The invention discloses a lifting table which comprises a first electric lifting supporting leg, a second electric lifting supporting leg and a connecting cross rod, the two ends of the connecting cross rod are matched with the first electric lifting supporting leg and the second electric lifting supporting leg respectively, and the movement directions of the first electric lifting supporting leg and the second electric lifting supporting leg are the same. The device is characterized in that the device further comprises a posture sensor, the posture sensor is arranged at one end of the connecting cross rod, and when the posture sensor senses that the posture sensor is in an inclined state, the first electric lifting supporting leg and the second electric lifting supporting leg reversely move by a certain distance and then stop moving. The lifting table has the following beneficial effects that the state change of the attitude sensor is used for sensing whether the table board encounters an obstacle or not during lifting, when the table board encounters the obstacle, the attitude sensor is triggered, and the first electric lifting supporting leg and the second electric lifting supporting leg immediately and reversely move for a certain distance and then stop; and the barrier is protected.

Description

Technical Field

[0001] This invention relates to the field of office equipment, and more particularly to a height-adjustable desk. Background Technology

[0002] Height-adjustable desks are a common type of office equipment. The structure of a typical height-adjustable desk is shown in patent publication CN206354682U. This type of desk uses motors located on two legs to control the height of the entire desk. However, height-adjustable desks are prone to encountering obstacles during the height-adjustment process. The height-adjustable desk disclosed in CN206354682U cannot sense whether the desk is encountering an obstacle. If it does not stop in time when it encounters an obstacle, it may crush the obstacle or the desk itself, and may even cause personal injury. Therefore, the reliability of the height-adjustable desk shown in CN206354682U is relatively poor. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a height-adjustable table. By adding a posture sensor, the tabletop detects whether it encounters an obstacle during height adjustment based on the sensor's own state changes. When the tabletop encounters an obstacle, the posture sensor is triggered, and the first and second electric lifting legs immediately move in opposite directions for a distance before stopping. This protects the obstacle and prevents it from being crushed.

[0004] The technical solution adopted in this invention is as follows:

[0005] A height-adjustable table includes a first electrically adjustable leg, a second electrically adjustable leg, and a connecting crossbar. The two ends of the connecting crossbar are respectively engaged with the first and second electrically adjustable legs. The first and second electrically adjustable legs move in the same direction. The table is characterized by further including a posture sensor, which is disposed at one end of the connecting crossbar. When the posture sensor detects that it is tilted or senses vibration, the first and second electrically adjustable legs move in opposite directions for a certain distance before stopping.

[0006] In this type of height-adjustable table, the first and second electric lifting legs are connected by a connecting crossbar. After the first and second electric lifting legs are connected by the connecting crossbar, the tabletop is installed on the first and second electric lifting legs and the connecting crossbar. When the first and second electric lifting legs are raised and lowered, the tabletop is also raised and lowered. During the raising and lowering process, if the tabletop does not encounter any foreign objects, the attitude sensor itself will not tilt. However, if the tabletop encounters a foreign object during the raising and lowering process, it will cause a slight difference in the raising and lowering amount of the first and second electric lifting legs. This slight difference will cause the attitude sensor itself to tilt to a certain extent. When the attitude sensor tilts, the drive motors of the first and second electric lifting legs immediately stop rotating, and after stopping, they immediately rotate in the opposite direction a certain distance before stopping again. This achieves the reverse rotation of the first and second electric lifting legs, thereby realizing a reverse movement a certain distance while stopping. This design can prevent the tabletop from crushing or damaging obstacles. Similarly, when the impact of an obstacle on the tabletop is relatively weak and does not cause the tabletop to tilt but only causes it to vibrate, the vibration will also be detected by the attitude sensor. When the vibration of the tabletop is detected, the first electric lifting outrigger and the second electric lifting outrigger move in the opposite direction for a certain distance and then stop moving.

[0007] In summary, this type of height-adjustable desk, by adding a posture sensor, uses the sensor's own state changes to sense whether the desk encounters an obstacle during the lifting process. When the desk encounters an obstacle, the posture sensor is triggered, and the first and second electric lifting legs immediately move in opposite directions for a distance before stopping, thus protecting the obstacle and preventing it from being crushed.

[0008] Optionally, it also includes a control host, and the drive motors in the first and second electric lifting legs are electrically connected to the control host.

[0009] Specifically, in this type of height-adjustable desk, the operation of the drive motors on both the first and second electric lifting legs is controlled by a control host. Furthermore, the control host records various parameters of the drive motors during operation, including the current and voltage. By recording these current and voltage values, real-time monitoring of the drive motor's operating status is achieved, facilitating control over its condition. Simultaneously, the control host records and stores the number of times the drive motor operates, its direction of travel, and the amount of travel. By recording and storing the direction of travel and the amount of travel, the height of the desk from the ground can be indirectly calculated. Furthermore, by recording the number of motor operations, the number of times the desk has been raised and lowered can be obtained, thus revealing the status of the drive motor.

[0010] Optionally, it may also include an operation button panel, which is electrically connected to the control host.

[0011] The control panel can be fixed in the required location, and its function is to control the operation of the drive motor.

[0012] Optionally, the control host integrates a wireless communication module.

[0013] The wireless communication module facilitates the uploading of information stored in the control host to the backend server for storage. It also enables remote control of the height-adjustable table when needed.

[0014] Optionally, the connecting crossbar is perpendicular to the first electric lifting outrigger and the second electric lifting outrigger.

[0015] Optionally, it also includes a base plate, wherein one end of the first electric telescopic leg and the second electric telescopic leg are provided with the base plate, and the base plate is a flat plate, and the base plates on the first electric telescopic leg and the second electric telescopic leg are in the same plane.

[0016] Optionally, the first electric lifting leg and the second electric lifting leg are in a parallel state, and the first electric lifting leg and the second electric lifting leg have the same shape and size.

[0017] Optionally, both the first and second electric lifting legs are provided with mounting strips, which are used to mount the tabletop. The mounting strips on the first and second electric lifting legs are in a parallel state.

[0018] Optionally, the drive motors in both the first and second electric lifting outriggers are brushless motors.

[0019] Using a brushless motor allows for precise control of the lifting amount of the first and second electric lifting legs as needed, and also enables rapid and precise control of their lifting.

[0020] The beneficial effects of this invention are: by adding an attitude sensor, the state changes of the attitude sensor itself are used to sense whether the tabletop encounters an obstacle when it is raised or lowered. When the tabletop encounters an obstacle, the attitude sensor is triggered, and the first electric lifting leg and the second electric lifting leg immediately move in opposite directions for a distance before stopping, which protects the obstacle and prevents the obstacle from being crushed. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a simplified structural diagram of an adjustable desk;

[0023] Figure 2 This is a schematic diagram showing the installation position of the control host on the connecting crossbar.

[0024] The attached figures are labeled as follows: 1. First electric lifting outrigger; 2. Second electric lifting outrigger; 3. Base plate; 4. Mounting strip; 5. Operation button panel; 6. Connecting crossbar; 7. Cover plate; 8. Drive motor; 9. Control host. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] As attached Figure 1 and appendix Figure 2As shown, a height-adjustable table includes a first electric lifting leg 1, a second electric lifting leg 2, and a connecting crossbar 6. The two ends of the connecting crossbar 6 are respectively engaged with the first electric lifting leg 1 and the second electric lifting leg 2. The first electric lifting leg 1 and the second electric lifting leg 2 move in the same direction. The table is characterized by including an attitude sensor, which is disposed at one end of the connecting crossbar 6. When the attitude sensor senses that it is in a tilted state or senses vibration, the first electric lifting leg and the second electric lifting leg 2 move in opposite directions for a certain distance and then stop moving.

[0029] In this type of height-adjustable table, the first electric lifting leg 1 and the second electric lifting leg 2 are connected by a connecting crossbar 6. After the first electric lifting leg 1 and the second electric lifting leg 2 are connected by the connecting crossbar 6, the tabletop is installed on the first electric lifting leg 1, the second electric lifting leg 2, and the connecting crossbar 6. When the first electric lifting leg 1 and the second electric lifting leg 2 are raised and lowered, the tabletop is also raised and lowered. During the raising and lowering process, if the tabletop does not encounter any foreign objects, the attitude sensor itself will not tilt. However, if the tabletop encounters a foreign object during the raising and lowering process, it will cause a slight difference in the raising and lowering amount of the first electric lifting leg 1 and the second electric lifting leg 2. This slight difference will cause the attitude sensor itself to tilt to a certain extent. When the attitude sensor tilts, the drive motor 8 of the first electric lifting leg 1 and the second electric lifting leg 2 immediately stops rotating, and immediately rotates in the opposite direction a certain distance before stopping again. This achieves the first electric lifting leg 1 and the second electric lifting leg 2 rotating in opposite directions, thereby achieving a reverse movement a certain distance while stopping. This design can prevent the tabletop from crushing obstacles. Similarly, when the impact of an obstacle on the tabletop is relatively weak and does not cause the tabletop to tilt but only causes it to vibrate, the vibration will also be detected by the attitude sensor. When the vibration of the tabletop is detected, the first electric lifting outrigger and the second electric lifting outrigger move in the opposite direction for a certain distance and then stop moving.

[0030] In summary, this type of height-adjustable desk, by adding a posture sensor, uses the sensor's own state changes to sense whether the desk encounters an obstacle during the lifting process. When the desk encounters an obstacle, the posture sensor is triggered, and the first electric lifting leg 1 and the second electric lifting leg 2 immediately move in opposite directions for a distance before stopping, thus protecting the obstacle and preventing it from being crushed.

[0031] As attached Figure 1 and appendix Figure 2 As shown, it also includes a control host 9, and the drive motors 8 in the first electric lifting leg 1 and the second electric lifting leg 2 are electrically connected to the control host 9.

[0032] Specifically, in this type of height-adjustable desk, the operation of the drive motors 8 on the first electric lifting leg 1 and the second electric lifting leg 2 is controlled by the control host 9. Furthermore, the control host 9 records all parameters of the drive motors 8 during operation. The control host 9 records and stores the current and voltage of the drive motors 8 during operation. By recording these current and voltage values, real-time monitoring of the drive motor 8's operating status is achieved, facilitating control over the drive motor 8's condition. Simultaneously, the control host 9 records and stores the number of times the drive motor 8 operates, its direction of operation, and the amount of operation. By recording and storing the direction of operation and the amount of operation, the height of the desk from the ground can be indirectly calculated. Furthermore, by recording the number of motor operations, the number of times the desk has been raised and lowered can be obtained, thus revealing the operating status of the drive motor 8.

[0033] As attached Figure 1 and appendix Figure 2 As shown, it also includes an operation button panel 5, which is electrically connected to the control host 9.

[0034] The operation button panel 5 can be fixed in the required location. The function of the operation button panel 5 is to control the operation of the drive motor 8.

[0035] According to the figure, this type of height-adjustable desk can also have a USB-AC power supply port added to the control panel 5 as needed.

[0036] Similarly, this type of height-adjustable desk can also integrate wireless charging devices or USB power interfaces for electronic devices on the tabletop (or other locations) as needed.

[0037] As attached Figure 1 and appendix Figure 2 As shown, the control host 9 integrates a wireless communication module.

[0038] The wireless communication module facilitates the uploading of information stored in the control host 9 to the backend server for storage. It also enables remote control of the height-adjustable desk when needed. The wireless communication module allows for data exchange and interconnection between the various height-adjustable desks, thus achieving both integrated and individual control.

[0039] Similarly, if the control unit 9 of this height-adjustable desk integrates a speaker, the wireless communication module can provide corresponding voice prompts to the user as needed, such as reminders for prolonged sitting. If the speaker integrates a voice acquisition module, this type of height-adjustable desk can also be voice-controlled.

[0040] Meanwhile, due to the presence of a wireless communication module in this type of height-adjustable desk, when a malfunction occurs, the fault code can be promptly transmitted to the backend server or remotely restarted as needed to resolve the fault.

[0041] As attached Figure 1 and appendix Figure 2 As shown, the connecting crossbar 6 is perpendicular to the first electric lifting leg 1 and the second electric lifting leg 2.

[0042] As attached Figure 1 and appendix Figure 2 As shown, it also includes a base plate 3. One end of the first electric telescopic support leg and the second electric telescopic support leg are provided with a base plate 3, and the base plate 3 is a flat plate. The base plates 3 on the first electric telescopic support leg and the second electric telescopic support leg are in the same plane.

[0043] As attached Figure 1 and appendix Figure 2 As shown, the first electric lifting leg 1 and the second electric lifting leg 2 are in a parallel state, and the first electric lifting leg 1 and the second electric lifting leg 2 have the same shape and size.

[0044] As attached Figure 1 and appendix Figure 2 As shown, both the first electric lifting leg 1 and the second electric lifting leg 2 are provided with mounting strips 4. The mounting strips 4 are used to mount the table. The mounting strips 4 on the first electric lifting leg 1 and the second electric lifting leg 2 are in a parallel state.

[0045] As attached Figure 1 and appendix Figure 2 As shown, the drive motors 8 in the first electric lifting leg 1 and the second electric lifting leg 2 are both brushless motors.

[0046] Using a brushless motor allows for precise control of the lifting amount of the first electric lifting leg 1 and the second electric lifting leg 2 as needed, and also allows for quick and precise control of their lifting.

[0047] See appendix Figure 1 and appendix Figure 2 In the middle, a cover plate 7 is set at the end of the connecting crossbar 6. The presence of the cover plate 7 can cover the drive motor 8 and the control host 9. The attitude sensor is integrated and installed in the housing of the control host 9, realizing efficient installation.

[0048] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting table comprising a first electric lifting leg, a second electric lifting leg, and a connecting crossbar, both ends of the connecting crossbar being coupled together with the first electric lifting leg and the second electric lifting leg, respectively, the first electric lifting leg and the second electric lifting leg having the same direction of movement, characterized in that, The posture sensor is arranged at one end of the connecting cross bar, and when the posture sensor senses that it is in an inclined state or senses shaking, the first electric lifting leg and the second electric lifting leg move reversely for a distance and then stop moving.

2. A sit-stand desk according to claim 1, wherein, The control host is electrically connected with the motors in the first electric lifting leg and the second electric lifting leg.

3. A raise and lower table as claimed in claim 2, characterized in that The operation key plate is electrically connected with the control host.

4. A raise and lower table as claimed in claim 2, characterized in that The control host is internally integrated with a wireless communication module.

5. A sit-stand desk as claimed in claim 1, wherein, The connecting cross bar is perpendicular to the first electric lifting leg and the second electric lifting leg.

6. A sit-stand desk as claimed in claim 1, wherein, The bottom plate is arranged at one end of the first electric telescopic leg and the second electric telescopic leg, and the bottom plate is a flat plate, and the bottom plates on the first electric telescopic leg and the second electric telescopic leg are in the same plane.

7. A lift table as claimed in claim 1, wherein The first electric lifting leg and the second electric lifting leg are in a parallel state, and the shapes and sizes of the first electric lifting leg and the second electric lifting leg are consistent.

8. A sit-stand desk as claimed in claim 1, wherein, The first electric lifting leg and the second electric lifting leg are provided with mounting strips for mounting the table plate, and the mounting strips on the first electric lifting leg and the second electric lifting leg are in a parallel state.

9. A lift table as claimed in claim 1, wherein, The driving motors in the first electric lifting leg and the second electric lifting leg are brushless motors.

Images