Obstruction detecting device, obstruction detecting system, electric table and electric hanging cabinet

Abstract

The application discloses a resistance detection device, a resistance detection system, an electric table and an electric hanging cabinet, belongs to the field of resistance detection, has high resistance detection sensitivity, and discloses the resistance detection device, which comprises a first shell and a second shell, the second shell is floatingly installed on the first shell through a first elastic element, a circuit board is arranged on the first shell, a resistance detection switch connected with the circuit board and a rotating knob are arranged on the first shell, one end of the rotating knob is a free end abutting against the first shell, the other end of the rotating knob is a pressing end for pressing the resistance detection switch, and the free end is driven to drive the pressing end to move away from the resistance detection switch to generate a resistance signal.

Description

[Technical Field]

[0001] This invention relates to the field of obstacle detection, and more particularly to obstacle detection devices, obstacle detection systems, electric tables, and electric cabinets. [Background Technology]

[0002] Typically, an obstacle detection and retraction system includes a sensor and a controller. When the sensor detects an obstacle, the controller controls the motion mechanism to retract. Mechanical sensor push-button switches are widely used in obstacle detection and retraction systems due to their contact-based control, which offers reliable control and no false alarms.

[0003] However, in practical applications, the sensitivity of mechanical sensors is limited. From the moment the electrical signal state of the button switch changes until the motion mechanism retracts, due to the controller receiving the electrical signal to control the motor and the motor's own inertia, the motion mechanism will continue its original motion state during this period. Therefore, the obstacle detection and retraction system using a button switch is only suitable for obstacle detection and retraction scenarios with relatively low-speed motion mechanisms. [Summary of the Invention]

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and propose an obstacle detection device with high obstacle detection sensitivity.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An obstacle detection device includes a first housing and a second housing. The second housing is floatingly mounted on the first housing via a first elastic element. The first housing is provided with a circuit board, an obstacle detection switch connected to the circuit board, and a rotatably mounted actuating element. One end of the actuating element is a free end that abuts against the first housing, and the other end of the actuating element is a pressing end that holds the obstacle detection switch. Actuating the free end drives the pressing end away from the obstacle detection switch to generate an obstacle detection signal.

[0007] Based on the above scheme, the distance between the free end and the rotation center of the actuating element is greater than the distance between the pressing end and the rotation center of the actuating element.

[0008] Based on the above scheme, the second housing is provided with a boss facing the first housing, and the boss is in contact with the free end.

[0009] Based on the above scheme, a second elastic element is provided on the first housing or the second housing, and the second elastic element applies an elastic force to the actuating member to keep the free end against the second housing.

[0010] Based on the above scheme, the first housing is provided with a pin, the actuating member is rotatably mounted on the pin, the actuating member extends obliquely from the pin position toward the second housing to form the free end, and the actuating member extends obliquely from the pin position toward the obstruction detection switch to form the pressing end.

[0011] Based on the above scheme, the first housing is provided with a pin, the extrusion end is cam-shaped and rotates with the pin, and the actuating member extends obliquely from the extrusion end toward the second housing to form the free end.

[0012] Based on the above solution, one of the first housing and the second housing is provided with a buckle, and the other is provided with a buckle groove that cooperates with the buckle, and the buckle is slidably installed in the buckle groove.

[0013] Based on the above scheme, the first elastic element is a spring, and the first housing and / or the second housing are provided with spring grooves for mounting the spring.

[0014] Based on the above scheme, multiple sets of obstruction detection switches and multiple sets of toggle mechanisms are provided between the first housing and the second housing.

[0015] An obstacle detection system includes a first plate and a second plate, with multiple obstacle detection devices provided between the first plate and the second plate. The obstacle detection devices are as described above. The first housing is fixedly connected to the first plate, and the second housing is fixedly connected to the second plate.

[0016] The electric table includes the aforementioned obstacle detection system.

[0017] Electric overhead cabinet, including the aforementioned obstacle detection system.

[0018] The beneficial effects of this invention are:

[0019] This invention discloses an obstruction detection device that can be installed on equipment to enable the equipment to detect obstructions. The equipment can be an electric table, electric bed, or other devices that require high accuracy in obstruction detection. The first and second housings can move relative to each other. In normal conditions, the first elastic member maintains its normal length, and the pressing end of the actuating member presses against the obstruction detection switch. When the obstruction detection device moves with the equipment, its movement direction is usually from the first housing towards the second housing or from the second housing towards the first housing. When an obstruction occurs, the movement of one of the first and second housings is affected, causing the movement speed to decrease rapidly. Since the other housing still has inertia, the first and second housings will have relative movement, and the distance between them will decrease. The second housing will push the free end of the actuating member, driving the actuating member to rotate, causing the pressing end to leave the obstruction detection switch, thereby generating an obstruction signal.

[0020] In existing technologies, an obstruction signal is generated by pressing a switch when an obstacle is encountered. After signal detection, the device continues to move due to the reaction time between the control system and the motor, as well as the motor's inertia. Compared to existing technologies, this application only requires a small displacement of the second housing relative to the first housing to prevent the pressing end from pressing the obstruction detection switch. This achieves faster obstruction detection and reduces the requirements for the button switch's buffer travel, eliminating errors in the switch's travel distance and preventing potential injury from continued movement after obstruction. The signal detection and control are more sensitive and reliable, enabling rapid detection of obstruction and significantly improving device safety. After the obstruction is cleared, the elastic force of the first elastic element resets the first and second housings, and the pressing end of the toggle member resets and presses the obstruction detection switch, canceling the obstruction alarm. This obstruction detection device is suitable for devices requiring high obstruction detection sensitivity, such as electric tables, where the table could potentially cause injury. It is also suitable for devices with high movement speeds, preventing them from continuing to move a considerable distance after obstruction due to high sensitivity.

[0021] Furthermore, the distance between the free end and the rotation center of the actuating element is greater than the distance between the pressing end and the rotation center of the actuating element. Utilizing the lever principle, only a small force is needed on the free end to drive the actuating element to rotate, causing the pressing end to move away from the obstruction detection switch. The relative motion between the first and second housings is minimally affected by the reaction force of the actuating element, thus ensuring the sensitivity of the obstruction detection device.

[0022] Furthermore, the second housing is provided with a boss facing the first housing, and the boss abuts against the free end. By providing the boss, the free end does not need to directly contact the second housing, thereby shortening the length of the actuating component and avoiding the increase in assembly difficulty and the size of the obstruction detection device due to an excessively long actuating component.

[0023] Furthermore, a second elastic element is provided on the first housing or the second housing. The second elastic element applies a spring force to the actuating member to keep its free end against the second housing. The spring force of the second elastic element acts on the actuating member, allowing its free end to remain against the second housing. When the obstruction is resolved, the second housing and the first housing reset, and the actuating member also resets under the action of the second elastic element. In addition, under the action of the second elastic element, in normal conditions, the actuating member can maintain a pressed state against the obstruction detection switch to avoid false triggering of the obstruction signal.

[0024] Furthermore, one of the first housing and the second housing is provided with a snap fastener, and the other is provided with a snap groove that engages with the snap fastener. The snap fastener is slidably installed in the snap groove. Through the engagement of the snap fastener and the snap groove, the second housing can be secured to the first housing, preventing the first housing and the second housing from separating.

[0025] Furthermore, the first elastic element is a spring, and the first housing and / or the second housing are provided with spring grooves for mounting the spring. Compared to elastomers such as silicone or rubber parts, springs have better extensibility and contractility, enabling rapid deformation of the obstruction detection device to generate an obstruction signal when it encounters an obstacle. The spring groove is used to accommodate the end of the spring to position the spring and limit the radial displacement of the spring end position.

[0026] Furthermore, multiple sets of obstruction detection switches and multiple sets of actuating components are provided between the first housing and the second housing. If the obstruction location deviates from the position of the actuating component on the first and second housings, a certain relative movement needs to occur between the first and second housings before the actuating component can be driven to rotate. However, by this time, a certain amount of time has passed since the equipment encountered the obstruction, and the displacement of the equipment during this period is very likely to cause damage and accidents. By setting multiple sets of obstruction detection switches and multiple sets of actuating components, the obstruction detection device can quickly generate an obstruction signal when obstruction occurs at different locations.

[0027] The present invention also discloses an obstruction detection system employing the above-mentioned obstruction detection device. The obstruction detection device is small in size and has a limited detection range when installed on a large device, and cannot generate an obstruction signal in a timely manner. The obstruction detection system employs multiple obstruction detection devices, so that when obstruction occurs at different positions of the first body and the second plate, an obstruction signal can be generated quickly.

[0028] The present invention also discloses an electric table, which is a type of smart furniture. After adopting the above-mentioned obstacle detection system, it has a high obstacle detection capability. When the electric table encounters an obstacle due to pinching the user during movement, the electric table can quickly detect the obstacle and thus prevent the user from being pinched.

[0029] The present invention also discloses an electric hanging cabinet, which is a type of smart furniture. After adopting the obstacle detection system described above, the electric hanging cabinet can quickly detect obstacles encountered by the cabinet body during the lifting and lowering process.

[0030] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0031] The invention will be further described below with reference to the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of the obstruction detection device in an embodiment of the present invention;

[0033] Figure 2 This is an exploded view of the obstruction detection device in an embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional view of the obstacle detection device in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the internal structure of the obstacle detection device in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of another obstacle detection device in an embodiment of the present invention;

[0037] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0038] Figure 7 This is a cross-sectional view of another obstacle detection device in an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the obstruction detection system in an embodiment of the present invention.

[0040] Figure label:

[0041] First housing 100, second housing 110, boss 120, buckle 130, buckle groove 140, first perimeter 150, second perimeter 160;

[0042] First elastic element 200, spring groove 210;

[0043] Circuit board 300, obstacle detection switch 310;

[0044] Actuating element 400, free end 410, pressing end 420, second elastic element 430, and pin 440;

[0045] First plate 500, second plate 510.

Detailed Implementation Methods

[0046] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0047] The terms "exemplary" and "some embodiments" used below are meant to be "used as examples, embodiments, or illustrations," and any embodiment described as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. Numerous specific details are set forth in the following detailed description to better illustrate the invention, and those skilled in the art will understand that this disclosure can be practiced without certain specific details.

[0048] Reference Figures 1 to 4 This invention discloses an obstruction detection device, including a first housing 100 and a second housing 110. The second housing 110 is floatingly mounted on the first housing 100 via a first elastic member 200. The first housing 100 is provided with a circuit board 300, an obstruction detection switch 310 connected to the circuit board 300, and a rotatably mounted actuating member 400. One end of the actuating member 400 is a free end 410 that abuts against the first housing 100, and the other end of the actuating member 400 is a pressing end 420 that presses against the obstruction detection switch 310. Actuating the free end 410 drives the pressing end 420 away from the obstruction detection switch 310 to generate an obstruction signal.

[0049] This invention discloses an obstruction detection device that can be installed on equipment to enable the equipment to detect obstructions. The equipment can be an electric table, an electric bed, or other equipment that requires high accuracy in obstruction detection. The first housing 100 and the second housing 110 can move relative to each other. In normal state, the first elastic member 200 maintains its normal length. At this time, the pressing end 420 of the actuating member 400 presses against the obstruction detection switch 310. When the obstruction detection device moves with the equipment, its movement direction is usually from the first housing 100 toward the second housing 110 or the second housing 110 toward the first housing 100. When an obstruction occurs, the movement of one of the housings, the first housing 100 and the second housing 110, is affected, causing the movement speed to decrease rapidly. Since the other housing still has inertia, the first housing 100 and the second housing 110 will have relative movement, and the distance between them will decrease. The second housing 110 will push the free end 410 of the actuating member 400, driving the actuating member 400 to rotate, causing the pressing end 420 to leave the obstruction detection switch 310, thereby generating an obstruction signal.

[0050] In existing technical solutions, an obstruction signal is generated by pressing a button switch when an obstruction is encountered. After signal detection, the device continues to move due to the reaction time from the control system to the motor and the motor's inertia. Compared to existing technologies, in this application, only a small displacement of the second housing 110 relative to the first housing 100 is needed to prevent the pressing end 420 from pressing the obstruction detection switch 310. This achieves faster obstruction retraction detection while reducing the requirements on the button switch's buffer travel and eliminating errors in the switch's travel distance. This avoids potential damage from continued device movement after obstruction. The signal detection and control are more sensitive and reliable, enabling rapid detection of obstruction and significantly improving device safety. After the obstruction is cleared, the elastic force of the first elastic element 200 resets the first housing 100 and the second housing 110, and the pressing end 420 of the toggle element 400 resets and presses the obstruction detection switch 310, canceling the obstruction alarm. The obstacle detection device of this application is suitable for devices with high sensitivity to obstacle detection, such as electric tables, which may cause injury to the human body if the electric table is caught in an obstacle; it can also be used for devices with high movement speed, and through high sensitivity, it can prevent the device from continuing to move a long distance after encountering an obstacle.

[0051] The obstacle detection device is floated at the bottom of the equipment, and the magnitude of the resistance encountered during the obstacle detection process is not affected by the load of the equipment.

[0052] The aforementioned obstruction detection switch 310 is a normally closed push-button switch. When the pressing end 420 presses against the obstruction detection switch 310, the obstruction detection switch 310 is in the open state. When the pressing end 420 leaves the obstruction detection switch 310, the obstruction detection switch 310 closes and generates a signal, thereby generating an obstruction detection signal. Alternatively, the obstruction detection switch can be a tactile switch. When the pressing end contacts the obstruction detection switch, the obstruction detection switch is in the closed state and generates a signal. When the pressing end leaves the obstruction detection switch, the signal is interrupted. The interruption of the signal is used as the basis for determining obstruction.

[0053] The first elastic element 200 is used to maintain the floating installation between the first housing 100 and the second housing 110, and to provide a spring force to reset the two housings after relative movement. To ensure that the actuating element 400 can maintain contact between its free end 410 and the second housing 110, and that the pressing end 420 can re-press the obstruction detection switch 310 after the first housing 100 and the second housing 110 have reset, a second elastic element 430 is provided corresponding to the lever. The second elastic element 430 extends towards the actuating element... A spring force is applied to keep the free end 410 abutting against the second housing 110. The second elastic element 430 can deform as the actuating element 400 rotates. The deformation of the second elastic element 430 does not affect the application of the spring force to the actuating element 400. A pin 440 is provided on the first housing 100, and the actuating element 400 is rotatably mounted on the pin 440. A torsion spring is also provided on the pin 440, with one leg fixed to the actuating element 400 and the other leg fixed to the pin 440. Preferably, the second elastic element 430 is a torsion spring, and the torsional force generated by the rotation of the actuating element 400 is well matched with the torsion spring. Of course, the second elastic element can also be a spring provided on the first housing or the second housing and connected to the actuating element.

[0054] The second elastic element 430 has an elastic force acting on the actuating element 400. Therefore, when the actuating element 400 contacts the second housing 110, it will apply a certain force to the second housing 110. In order to ensure the sensitivity of the obstruction detection device, the actuating element 400 is a long strip structure. The distance between the free end 410 and the pin 440 is greater than the distance between the pressing end 420 and the pin 440. Using the lever principle, only a small force is needed on the free end 410 to drive the actuating element 400 to rotate, so that the pressing end 420 leaves the obstruction detection switch 310. The relative movement between the first housing 100 and the second housing 110 is minimally affected by the reaction force of the actuating element 400, so as to ensure the sensitivity of the obstruction detection device.

[0055] Reference Figures 2 to 7 Based on the above embodiments, the structure of the toggle member 400 is specifically described in one embodiment of the present invention.

[0056] Figures 2 to 4 In the middle, the actuating element 400 is a paddle, the actuating element 400 extends obliquely from the position of the pin shaft 440 toward the second housing 110 to form a free end 410, and the actuating element 400 extends obliquely from the position of the pin shaft 440 toward the obstruction detection switch 310 to form a pressing end 420.

[0057] Or, refer to Figures 5 to 7 The pressing end 420 of the actuating member 400 is rotatably mounted on the pin 440. The actuating member 400 extends obliquely from the pressing end 420 toward the second housing 110 to form a free end 410. The pressing end 420 is cam-shaped and has a protruding part. When the obstruction detection device is in normal condition, the protruding part on the pressing end 420 presses the obstruction detection switch 310. As the actuating member 400 rotates, the protruding part gradually moves away from the obstruction detection switch 310, thereby generating an obstruction signal.

[0058] Reference Figure 3 or Figure 7 Based on the above embodiments, in one embodiment of the present invention, the second housing 110 is provided with a boss 120 facing the first housing 100, and the boss 120 abuts against the free end 410. By providing the boss 120, the free end 410 does not need to directly contact the second housing 110, thereby shortening the length of the actuating member 400, so as to avoid the actuating member 400 being too long and increasing the assembly difficulty and the size of the obstruction detection device.

[0059] To ensure the detection sensitivity of the obstacle detection device, refer to Figure 2 and Figure 4 In one embodiment of the present invention, a plurality of obstruction detection switches 310 and a plurality of toggle members 400 are provided between the first housing 100 and the second housing 110.

[0060] If only one set of obstruction detection switch 310 and toggle 400 is set, and the obstruction position is offset from the position of toggle 400 on the first housing 100 and the second housing 110, then a certain relative movement needs to be generated between the first housing 100 and the second housing 110 before the toggle 400 can be driven to rotate. However, by this time, a certain amount of time has passed since the equipment encountered the obstruction, and the displacement of the equipment during this period is very likely to cause damage and accidents. By setting multiple sets of obstruction detection switches 310 and multiple sets of toggle 400, when the obstruction detection device is obstructed at different positions, an obstruction signal can be generated quickly.

[0061] Furthermore, preferably, the adjacent sets of obstruction detection switches 310 and toggle members 400 are arranged in opposite directions, i.e.: Figure 4 As shown, Figure 4The rightmost actuating element 400 has its free end 410 at the top and its pressing end 420 at the bottom. The adjacent actuating element 400 also has its free end 410 at the bottom and its pressing end 420 at the top. It should be noted that in this description, "top," "bottom," "left," and "right" all refer to... Figure 4 The direction shown in the image does not represent the direction in the actual device.

[0062] In one embodiment of the present invention, specifically:

[0063] Reference Figure 2 and Figure 5 The second housing 110 is provided with a buckle 130, and the first housing 100 is provided with a buckle groove 140 that cooperates with the buckle 130. The buckle 130 is slidably installed in the buckle groove 140. Through the cooperation of the buckle 130 and the buckle groove 140, the second housing 110 can be restricted to the first housing 100, so as to prevent the first housing 100 and the second housing 110 from separating.

[0064] The first housing 100 has a continuous first perimeter 150 protruding towards the second housing 110, and the second housing 110 has a continuous second perimeter 160 protruding towards the first housing 100. The first perimeter 150 surrounds the second perimeter 160. A buckle 130 is disposed on the second perimeter 160, and a buckle groove 140 is disposed on the first perimeter 150. After the buckle 130 is engaged in the buckle groove 140, the inner wall of the buckle groove 140 has a limiting effect on the buckle 130, thereby limiting the buckle 130 in the buckle groove 140 to realize the installation of the first housing 100 and the second housing 110.

[0065] The first elastic element 200 is a spring. The first housing 100 and / or the second housing 110 are provided with spring grooves 210 for mounting the spring. Compared to elastomers such as silicone or rubber, springs have better extensibility and contractility, enabling rapid deformation of the obstruction detection device to generate an obstruction signal upon encountering an obstacle. The spring groove 210 is used to accommodate the end of the spring for positioning and limiting radial displacement of the spring end. Under the action of the first elastic element 200, in the normal state, the latch 130 abuts against the top wall of the latch groove 140 to ensure sufficient obstruction buffer distance.

[0066] Reference Figure 8The present invention also discloses an obstruction detection system employing the aforementioned obstruction detection device. The obstruction detection system includes a first plate 500 and a second plate 510, with multiple obstruction detection devices disposed between the first plate 500 and the second plate 510. A first housing 100 is fixedly connected to the first plate 500, and a second housing 110 is fixedly connected to the second plate 510. The aforementioned obstruction detection device is relatively small, and its detection range is limited when placed on larger equipment, making it unable to generate obstruction signals promptly. The obstruction detection system employs multiple obstruction detection devices, thus enabling rapid generation of obstruction signals when obstruction occurs at different locations on the first plate and the second plate 510. The dimensions of the first plate 500 and the second plate 510 can be adjusted according to the actual size of the equipment used, and the number of obstruction detection devices can also be adjusted accordingly. Of course, the aforementioned obstruction detection devices can also be individually arranged within small equipment or within certain small areas of large equipment.

[0067] This invention also discloses an electric table, a type of smart furniture. Employing the aforementioned obstacle detection system, it possesses a high level of obstacle detection capability. When the electric table encounters an obstacle due to pinching a user during movement, it can quickly detect the obstacle and prevent injury to the user. Furthermore, the aforementioned obstacle detection system can also be applied to devices such as electric beds.

[0068] This invention also discloses an electric hanging cabinet, which is a type of smart furniture. By employing the aforementioned obstacle detection system, it can quickly detect obstacles encountered by the cabinet body during its lifting and lowering process.

[0069] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. An obstacle detection device, characterized in that, The device includes a first housing and a second housing. The second housing is floatingly mounted on the first housing via a first elastic element. The first housing has a circuit board, an obstruction detection switch connected to the circuit board, and a rotatably mounted toggle member. The circuit board is laid flat on the side of the first housing facing the second housing. The obstruction detection switch is a push-button switch with the button facing the second housing. One end of the toggle member is a free end that abuts against the second housing, and the other end is a pressing end. The pressing end is used to hold and press the button of the obstruction detection switch to put it in a first state. Moving the free end drives the pressing end away from and releases the button of the obstruction detection switch, switching it to a second state and generating an obstruction signal.

2. The obstacle detection device according to claim 1, characterized in that, The distance between the free end and the rotation center of the actuating element is greater than the distance between the pressing end and the rotation center of the actuating element.

3. The obstacle detection device according to claim 2, characterized in that, The second housing has a boss facing the first housing, and the boss is in contact with the free end.

4. The obstacle detection device according to claim 1, characterized in that, The first housing or the second housing is provided with a second elastic element, which applies a spring force to the actuating member to keep the free end against the second housing.

5. The obstacle detection device according to claim 1, characterized in that, The first housing is provided with a pin, the actuating member is rotatably mounted on the pin, the actuating member extends obliquely from the pin position toward the second housing to form the free end, and the actuating member extends obliquely from the pin position toward the obstruction detection switch to form the pressing end.

6. The obstacle detection device according to claim 1, characterized in that, The first housing is provided with a pin, the extrusion end is cam-shaped and rotates with the pin, and the actuating member extends obliquely from the extrusion end toward the second housing to form the free end.

7. The obstacle detection device according to claim 1, characterized in that, One of the first housing and the second housing is provided with a buckle, and the other is provided with a buckle groove that engages with the buckle, and the buckle is slidably installed in the buckle groove.

8. The obstacle detection device according to claim 1, characterized in that, The first elastic element is a spring, and the first housing and / or the second housing are provided with spring grooves for mounting the spring.

9. The obstacle detection device according to any one of claims 1 to 8, characterized in that, Multiple sets of obstruction detection switches and multiple sets of toggle mechanisms are provided between the first housing and the second housing.

10. An obstacle detection system, characterized in that, It includes a first plate and a second plate, with a plurality of obstruction detection devices provided between the first plate and the second plate. The obstruction detection device is any one of the obstruction detection devices according to claims 1 to 9. The first housing is fixedly connected to the first plate, and the second housing is fixedly connected to the second plate.

11. An electric table, characterized in that, Includes the obstacle detection system as described in claim 10.

12. An electric hanging cabinet, characterized in that, Includes the obstacle detection system as described in claim 10.

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