Electric rotary dining table capable of automatically stopping and starting when food is picked up and stopping and starting control mechanism

Abstract

The utility model discloses a stop-start control mechanism of an electric dining table, which comprises an annular lane, a light shield and a signal detection processing driving trolley, and the annular lane is used for the signal detection processing driving trolley to walk; straight lines where front wheel shafts and rear wheel shafts of the signal detection processing driving trolleys are located intersect at the circle center of the annular lane. The light shield covers the two sides and the upper portion of the annular lane, and the top of the light shield is provided with a lighting window in the surrounding direction of the annular lane. A first pyroelectric detector is arranged at the top of the signal detection processing driving trolley and is used for detecting a far infrared signal penetrating through the lighting window; the first pyroelectric detector is in signal connection with a signal processor, the signal processor receives and processes a detection signal and transmits processed information to a signal controller on the electric dining table, and the signal controller controls a motor control switch of a rotating table top of the electric dining table so as to control the rotating table top to be stopped and started. According to the stop-start control mechanism of the electric dining table, the number of detection signals and the processing difficulty are reduced, and interference is small.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric rotary dining table technical field, especially a kind of electric rotary dining table and stop-start control mechanism of self-stopping of clamping dish. BACKGROUND

[0002] Electric rotary dining table makes food rotate on rotating disc, and automatically turns to the diners in each direction of dining table, to facilitate the self-selection of favorite food by diners. However, the continuous rotation of dining table will affect the clamping of dishes. The prior art uses two types of methods to control the start and stop of dining table rotation to facilitate the clamping of dishes. One type is controlled by manual button switch and touch sensing switch. For example, Chinese patent CN103284469A uses multiple touch switches arranged on the lower tabletop to control the rotation and stop of the upper tabletop. This type of manual control button switch or touch sensing switch needs to be operated by the diners with their hands, which will repeatedly interrupt the meal and require new dining habits. The other type is non-manual control. For example, Chinese patent CN202014784U discloses an intelligent rotary dining table, which is provided with more than eight infrared photoelectric switches on the tabletop for controlling the stop of the motor. When the diner reaches above the glass rotary table to prepare for clamping dishes by stretching his hand over the infrared photoelectric switch, the infrared photoelectric switch will control the motor to stop working. When the arm exits above the infrared photoelectric switch, the motor resumes work. Chinese patent CN214711256U discloses a rotary dining table with self-stopping clamping of dishes, which is fixed with a sensor including multiple detection units on the table body. Each detection unit is provided with multiple receiving tubes and multiple light-emitting diodes. The sensor detects by receiving the light reflected by the person, to control the stop or deceleration of the rotating disc, facilitating the clamping of dishes. Although the non-manual control in the prior art does not interrupt the meal due to the manual control of the start and stop of the rotating tabletop, these technical solutions all require a large number of emission heads and receiving heads, which are difficult to install and debug, have high system cost, are difficult to process detection signals, have high power consumption, and in strong light environment, the incident of ambient light will cause false start and stop or failure. CONTENT OF UTILITY MODEL

[0003] The utility model aims at: provide a kind of electric rotary dining table and stop-start control mechanism of self-starting of clamping dish, reduce the quantity of detection probe and the processing difficulty of detection signal, and the start and stop of tabletop rotation are not disturbed by ambient light.

[0004] The technical solution of the utility model is as follows:

[0005] The application discloses a start-stop control mechanism of an electric dining table, which comprises a circular track, a light shield and a signal detection and processing driving trolley.

[0006] The start-stop control mechanism of the electric dining table is used for a rotating electric dining table and is arranged around a fixed table top outside a rotating table top of the rotating electric dining table. When a diner has a dish-picking action and an arm of the diner passes through the light shield, the signal detection and processing driving trolley walking on the circular track detects, through a first pyroelectric detector, a far-infrared signal from the arm passing through a light window, a signal processor processes the signal, and the processed information is transmitted to a signal controller on the electric dining table. The signal controller controls a motor control switch of the rotating table top of the electric dining table, so that the rotating table top is stopped. When the first pyroelectric detector detects that the far-infrared signal from the arm disappears, i.e. when the arm of the diner is withdrawn, the signal processor processes the signal, the processed information is transmitted to the signal controller on the electric dining table, and the signal controller controls the motor control switch of the rotating table top of the electric dining table, so that the rotating table top continues to rotate. In the whole dish-picking process, the diner does not need to manually control the table top to stop and start rotating, the dining is not interrupted, and the dining habit of the diner is not changed. In addition, the signal detection and processing driving trolley walking on the circular track at a high speed carries the first pyroelectric detector to move and detect the far-infrared signal from the arm, so that the number of the pyroelectric detectors is greatly reduced, and the processing difficulty of the detection signal is reduced.

[0007] The light shield shielded by the light shield on the annular lane shields most far infrared interference signals from the environment on the left and right and above the first detection probe, and only the light window on the top is accurately positioned to collect the far infrared signals generated by the diners' sandwiching actions, so that the false start-stop actions caused by the interference signals are effectively avoided. In addition, the first light blocking plate arranged in the front and rear directions of the first detection probe forms a light collecting angle of 60-100 degrees, which blocks the far infrared signals from the front and rear directions of the signal detection and processing driving trolley at a relatively far distance, thereby avoiding the interference of the far infrared signals from the environment outside the sandwiching arm.

[0008] The first light blocking plate can be a conical plate in the shape of a funnel, or two straight plates. When the first light blocking plate is made of two straight plates, the two straight plates are arranged in front of and behind the first detection probe at an angle of 60-100 degrees, and the angle opening faces the light window.

[0009] The straight line where the front wheel shaft of the signal detection and processing driving trolley is located intersects with the straight line where the rear wheel shaft is located at the center of the annular lane. This arrangement makes the signal detection and processing driving trolley automatically walk in a circular route when walking, and the walking track coincides with the annular lane, so that external force is not needed to control the running track, the structure is simplified, and unnecessary energy consumption and noise are reduced.

[0010] The first pyroelectric detector detects far infrared signals with a wavelength range of 9-10 microns, i.e., the wavelength range of human body radiation far infrared, and the interference signals of other wave bands are arranged outside the detection range, so that the interference signals in the light and natural light are effectively avoided, false start-stop actions are less likely to occur, and it is more conducive to use in high-end restaurants with bright lights and near windows with strong light.

[0011] A light-transmitting cover can be installed on the light window to prevent dust and facilitate cleaning.

[0012] Preferably, the signal detection trolley is provided with a second pyroelectric detector on the top, the second pyroelectric detector comprises a second detection probe and a second light blocking plate, the second light blocking plate forms a light collecting angle of 60-100 degrees in the front and rear directions of the second detection probe, the second detection probe is used to detect far infrared signals transmitted through the light window, the second pyroelectric detector detects far infrared signals with a wavelength range of 9-10 microns, the second detection probe is connected to the signal processor, and the signal detection trolley walks on the annular lane, and the signal detection trolley and the signal detection and processing driving trolley are connected by a rigid rod.

[0013] The start-stop control mechanism of the electric dining table is provided with a signal detection trolley and a signal detection processing driving trolley connected by a rigid rod. During operation, the signal detection processing driving trolley drives the signal detection trolley to synchronously walk on the circular track. The second pyroelectric detector arranged on the top of the signal detection trolley and the first pyroelectric detector jointly detect the action of the diners in picking up food, moderately increase the detection density, and thus moderately reduce the walking speed of the signal detection processing driving trolley. This technical solution is particularly suitable for large or super-large rotating electric dining tables. The transmission line for the power required by the second pyroelectric detector and the data line for communication transmission can be arranged along the rigid rod. The second pyroelectric detector transmits the detected signal to the signal processor on the signal detection processing driving trolley through communication. The signal processor uniformly processes the signal and transmits the processed information to the signal controller.

[0014] More preferably, the signal detection trolley is one or more, and the signal detection trolleys are connected by a rigid rod. The multiple signal detection trolleys transmit the detection signals to the signal processor through the respective second pyroelectric detectors. The signal processor uniformly processes the signals and transmits the processed information to the signal controller. The signal controller is connected to the motor control switch of the rotating tabletop of the electric dining table to control the stopping and starting of the rotating tabletop.

[0015] In this way, the signal detection processing driving trolley and the signal detection trolley are fixed into a circular combination in series through the rigid rod line, so that the signal detection processing driving trolley and the signal detection trolley synchronously move on the circular track, thereby increasing the detection frequency of the human body far-infrared light signal and moderately reducing the walking speed of the signal detection processing driving trolley.

[0016] Preferably, an inside wall of the light shield is provided with a power supply and signal interface and two photoelectric limit switches. The power supply and signal interface is signal connected to the signal controller. The two photoelectric limit switches are electrically connected to an external direct current power supply. The power supply and signal interface is electrically connected to the two photoelectric limit switches respectively. The signal detection processing driving trolley walks between the two photoelectric limit switches. The signal detection processing driving trolley is provided with a power supply and signal cable. One end of the power supply and signal cable is signal connected to the signal processor and electrically connected to the wheel driving motor. The other end of the power supply and signal cable is connected to the power supply and signal interface. The photoelectric limit switches are used to detect the signal detection processing driving trolley and change the power supply polarity of the driving motor on the signal detection processing driving trolley through the power supply and signal interface when the signal detection processing driving trolley is detected, so that the signal detection processing driving trolley reversely walks.

[0017] Preferably, the signal detection processing driving trolley is provided with a mobile power supply.

[0018] Preferably, the signal detection processing driven trolley is provided with power supply carbon brushes on both sides, and the two side walls of the light shield are provided with conductive rails, and the power supply carbon brushes are in elastic electrical contact with the conductive rails.

[0019] Preferably, two parallel trolley limiting rails are arranged on the annular track, for limiting the wheels of the signal detection processing driven trolley to move between the two trolley limiting rails.

[0020] Preferably, the light shield is arched. The light shield can also be in other shapes, such as being arranged in a rectangular cross section, a square cross section, etc.

[0021] The utility model also provides a kind of electric rotary dining table of self-stopping and starting of sandwich, including fixed table top and rotating table top, the fixed table top is provided with the start-stop control mechanism of above-mentioned electric dining table, and the start-stop control mechanism of the electric dining table is arranged on the fixed table top around the outer edge of the rotating table top.

[0022] The utility model has the advantages that:

[0023] The start-stop control mechanism of the electric dining table moves the far infrared signal of the arm when diners sandwich by installing pyroelectric detector on the signal detection processing driven trolley of fast movement, controls the stop and start of rotating table top, so as to reduce the quantity of detector and the processing difficulty of detection signal, and not be disturbed by ambient light. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structural diagram of the start-stop control mechanism of the electric dining table of the utility model.

[0025] Figure 2 It is the partial sectional view of the start-stop control mechanism of the electric dining table of the utility model.

[0026] Figure 3 It is the three-dimensional structural schematic diagram of signal detection processing driven trolley in embodiment 1.

[0027] Figure 4 It is the three-dimensional structural schematic diagram of the chassis of signal detection processing driven trolley in embodiment 1 and 2 upwards.

[0028] Figure 5 It is the plan view of the electric rotary dining table of self-stopping and starting of sandwich of the utility model.

[0029] Figure 6 It is Figure 5 A-A sectional view.

[0030] Figure 7 It is the start-stop working principle diagram of rotating table top of electric dining table in embodiment 1.

[0031] Figure 8 Structure diagram of signal detection trolley in embodiment 2.

[0032] Figure 9 Sectional view of annular track and light shield in embodiment 2.

[0033] Figure 10 Partial structure diagram of photoelectric limit switch installed on inner wall of light shield in embodiment 2.

[0034] Figure 11 Structure diagram of signal detection processing driving trolley in embodiment 3.

[0035] Figure 12 Sectional view of annular track and light shield in embodiment 3.

[0036] Figure 13 Partial structure diagram of conductive rail installed on one side of light shield in embodiment 3. Figure 12

[0037] Figure:

[0038] 1, fixed table top; 2, rotating table top; 3, start-stop control mechanism of electric dining table; 31, annular track; 311, trolley limit track; 32, light shield; 321, light window; 322, light transmission cover; 323, power supply and signal interface; 324, conductive rail; 33, signal detection processing driving trolley; 331, chassis; 332, front wheel; 3321, front wheel shaft; 333, rear wheel; 3331, rear wheel shaft; 3332, fixed clamp; 334, wheel driving motor; 335, first pyroelectric detector; 3351, first detection probe; 3352, first light blocking plate one; 3353, first light blocking plate two; 3354, wireless transmitter; 336, power supply carbon brush; 34, rigid rod; 35, power supply and signal cable; 36, photoelectric limit switch; 37, signal detection trolley; 371, second pyroelectric detector; 3711, second detection probe; 3712, second light blocking plate one; 3713, second light blocking plate two; 4, signal processor; 5, signal controller. DETAILED DESCRIPTION

[0039] The utility model will be explained in detail below in combination with embodiments and drawings.

[0040] Embodiment 1

[0041] Figure 1 Structure diagram of start-stop control mechanism of electric dining table of the utility model. Figure 2 Partial sectional view of start-stop control mechanism of electric dining table of the utility model. Figure 3 Three-dimensional structure diagram of signal detection processing driving trolley in the embodiment.​

[0042] As Figure 1 , Figure 2 shown, the utility model discloses electric dining -table's stop and start control mechanism, including annular lane 31, sunshade 32 and signal detection processing drive dolly 33, the annular lane 31 is used for signal detection processing drive dolly 33 walking. Sunshade 32 covers both sides and top of annular lane 31, the top of sunshade 32 is provided with light window 321, light window 321 is banded, and the annular lane 31 is set along the direction of surrounding. As Figure 3 , Figure 4 shown, the straight line of front wheel shaft 3321 of signal detection processing drive dolly 33 and the straight line of rear wheel shaft 3331 are not parallel, when signal detection processing drive dolly 33 walks on annular lane 31, the straight line of front wheel shaft 3321 and the straight line of rear wheel shaft 3331 intersect in the center of annular lane 31. Such design makes the walking track of signal detection processing drive dolly 33 on annular lane 31 automatically coincide with annular lane 31. Signal detection processing drive dolly 33 is provided with first pyroelectric detector 335, signal processor 4 and wheel drive motor 334, wheel drive motor 334 provides walking power for signal detection processing drive dolly 33, first pyroelectric detector 335 is set on the top of signal detection processing drive dolly 33 and includes first detection probe 3351 and first light shield. First detection probe 3351 is used to detect the far infrared signal that transmits through light window 321, and the wavelength range of the far infrared signal detected by first pyroelectric detector 335 is 9-10 microns. First light shield is two plates, which are set in front and back of the walking direction of signal detection processing drive dolly 33, that is, first light shield one 3352 and first light shield two 3353. First light shield one 3352 and first light shield two 3353 are vertically set in front and back of first detection probe 3351 and form a 60-100 degree angle opening to light window 321, thereby forming a 60-100 degree light collecting angle. Such light collecting angle restricts the light collecting range and avoids the interference of far infrared light from the arm of the person who is not holding the food, for example, if first light shield is not set, the far infrared light from the non-food holding action of the person who is eating at the adjacent seat may be captured to form interference. First detection probe 3351 is connected to signal processor 4, signal processor 4 receives and processes the detection signal and transmits the processing information to signal controller 5 on electric dining -table, signal controller 5 controls the motor control switch of the rotating table top of electric dining -table, and the motor control switch controls the stop and start of the rotating action of the rotating table top.

[0043] Figure 5The utility model discloses a stop and start control mechanism of electric dining table's perspective view of the electric rotary dining table of the self-starting and stopping of sandwich of sandwich, Figure 6 For Figure 5 A-A sectional view. As Figure 5 、 Figure 6 Indicated, the electric rotary dining table of the self-starting and stopping of sandwich of the utility model, including the fixed desktop 1 of lower layer and the rotating desktop 2 of upper layer, be provided with the utility model's electric dining table's stop and start control mechanism 3 on the fixed desktop 1, the stop and start control mechanism 3 of electric dining table is arranged on the fixed desktop 1 around the outer edge of rotating desktop 2.

[0044] Figure 7 For the stop and start working principle diagram of the rotating desktop of electric dining table in the embodiment. The stop and start working principle of the rotating desktop of electric dining table of the utility model is as follows: when dining around the electric rotary dining table of the self-starting and stopping of sandwich of the utility model, for the convenience of dining person's self -selection favorite food, rotating desktop 2 is in the rotating state, and dishes and other food rotates on rotating desktop 2. When dining has the sandwich action, the arm reaches the top of the stop and start control mechanism 3 of electric dining table, and the signal detection processing drive trolley 33 on the annular road 31 passes through, and the first pyroelectric detector 335 on it detects the far infrared signal from the arm through the light window 321, and the signal processor 4 connected therewith receives and processes the detection signal, and transmits the processing information to the signal controller 5 on the electric dining table, and the signal controller 5 controls the motor control switch of the rotating desktop 2 of electric dining table, and the motor control switch controls the stop of rotating desktop 2, and the dining person is convenient to take food. When the dining person takes food, the arm is withdrawn, and the far infrared signal from the light window 321 disappears, and the first pyroelectric detector 335 detects the disappearance of the far infrared signal, and the signal controller 5 loses signal control, and rotating desktop 2 rotates again. Dining person does not need to manually control the stop or start of rotating desktop 2 in the whole process of sandwich, and the dining of dining person is not interrupted, and dining person does not need to deliberately change dining habits. The signal detection processing drive trolley on the fast annular road carries the first pyroelectric detector and patrols the movement detection far infrared signal from the arm, so that the number of pyroelectric detectors is greatly reduced, and the processing difficulty of detection signal is reduced.

[0045] Example 2

[0046] When the area of rotating desktop is larger, in order to capture all possible dining person's sandwich signal in time, and reduce the speed of signal detection processing drive trolley, can increase the density of far infrared signal collection according to the size of dining table circumference. For this purpose, the technical scheme adopted by the embodiment is as follows: as Figure 1 、 Figure 2 Indicated in the stop and start control mechanism of electric dining table, set up signal detection trolley 37.Figure 8 A schematic diagram of the three-dimensional structure of the signal detection trolley in the present embodiment is shown in FIG. 3. As shown in FIG. 3, the top of the signal detection trolley 37 is provided with a second pyroelectric detector 371, which includes a second detection probe 3711 and two second light barriers, i.e., a first second light barrier 3712 and a second second light barrier 3713. The first second light barrier 3712 and the second second light barrier 3713 are vertically arranged in front of and behind the second detection probe 3711, and the first second light barrier 3712 and the second second light barrier 3713 form an included angle of 60-100 degrees with the light collecting window 321, thereby forming a light collecting included angle of 60-100 degrees. Such a light collecting included angle restricts the light collecting range and avoids interference from far infrared light from outside the arm of the person using the tongs. Figure 8 The second detection probe 3711 is used to detect far infrared signals that pass through the light collecting window 321; the wavelength range of the far infrared signals detected by the second pyroelectric detector 371 is 9-10 microns; the second detection probe 3711 is signal connected to the signal processor 4; the signal detection trolley 37 travels on the annular track 31, and the signal detection trolley 37 and the signal detection processing driving trolley 33 are connected by a rigid rod 34, as shown in FIG. 3. Preferably, the straight line on which the front wheel shaft of the signal detection trolley 37 is located and the straight line on which the rear wheel shaft of the signal detection trolley 37 is located are not parallel, and the straight line on which the front wheel shaft of the signal detection trolley 37 is located and the straight line on which the rear wheel shaft of the signal detection trolley 37 is located intersect at the center of the annular track 31 when the signal detection trolley 37 travels on the annular track 31. Figure 2

[0047] ​The start-stop control mechanism of the electric dining table of the embodiment is provided with a signal detection trolley 37 and a signal detection processing driving trolley 33 connected by a rigid rod 34. During operation, the signal detection processing driving trolley 33 drives the signal detection trolley 37 to walk on the circular track 31 synchronously. The second pyroelectric detector 371 and the first pyroelectric detector 335 jointly move on the circular track 31 to detect the action of the diners to pick up food. The detection density is moderately increased, so the walking speed of the signal detection processing driving trolley can be moderately reduced. This technical solution is especially suitable for large or super-large rotating electric dining tables. The transmission line for the power required by the second pyroelectric detector 371 and the data line for communication transmission can be arranged along the rigid rod 34. The second pyroelectric detector 371 transmits the detected signals to the signal processor 4 on the signal detection processing driving trolley 33 through communication, and then transmits the signals processed by the signal processor 4 to the signal controller 5. The power required by the second pyroelectric detector 371 is obtained from the signal detection processing driving trolley 33. More preferably, a plurality of signal detection trolleys 37 are connected by rigid rods 34. This way of actively collecting signals greatly reduces the number of pyroelectric detectors, thereby greatly reducing the complexity of signal processing.

[0048] Figure 9 It is a cross-sectional view of the circular track and the light shield of the embodiment. Figure 10 It is a partial structure diagram of the photoelectric limit switch installed on the inner wall of the light shield of the embodiment. The inner wall of the light shield 32 of the embodiment is provided with a power and signal interface 323 and two photoelectric limit switches 36. As shown in Figure 9 、 Figure 10 , the power and signal interface 323 is signal connected to the signal controller 5; the two photoelectric limit switches 36 are electrically connected to an external DC power supply; the power and signal interface 323 is electrically connected to the two photoelectric limit switches 36 respectively; the signal detection processing driving trolley 33 walks between the two photoelectric limit switches 36; the signal detection processing driving trolley 33 is provided with a power and signal cable 35; one end of the power and signal cable 35 is signal connected to the signal processor and electrically connected to the wheel driving motor 334; the other end of the power and signal cable 35 is connected to the power and signal interface 323; the photoelectric limit switch 36 is used to detect the signal detection processing driving trolley 33, and when the signal detection processing driving trolley 33 is detected, the power supply polarity to the signal detection processing driving trolley 33 is changed through the power and signal interface 323, so that the signal detection processing driving trolley 33 walks reversely. The power required by the wheel driving motor 334 on the signal detection processing driving trolley 33 is provided through the power and signal cable 35 and the power and signal interface 323.

[0049] In this embodiment, one signal detection and processing drive vehicle and two signal detection vehicles travel on the circular lane 31. A fixing clip 3332 is provided on the chassis 331 of the signal detection and processing drive vehicle. A rigid rod 34 is fixed by the fixing clip 3332, connecting the one signal detection and processing drive vehicle and the two signal detection vehicles together to form a circle. Figure 4 As shown, the center of this ring coincides with the center of the ring road 31. The signal detection and processing drive vehicle 33 is connected to the power and signal interface 323 via the power and signal cable 35 to connect DC power and output control signals to the signal controller 5. The signal detection and processing drive vehicle 33 travels on the ring road 31. When it moves to the position of the photoelectric limit switch 36, it is detected by the photoelectric limit switch 36. The photoelectric limit switch 36 immediately changes the power supply polarity to the wheel drive motor 334 on the signal detection and processing drive vehicle 33 through the power and signal interface 323, causing the wheel drive motor 334 of the signal detection and processing drive vehicle 33 to change its rotation direction, thereby causing the signal detection and processing drive vehicle 33 to move in the opposite direction. Furthermore, under the action of the rigid rod, the signal detection vehicle 37 also performs synchronous forward or reverse movement. In this way, the signal detection and processing drive trolley 33 reciprocates between the two photoelectric limit switches, causing the signal detection trolley to also reciprocate. This allows one first detection probe and multiple second detection probes to move together, cyclically detecting the food-taking information of diners around the electric rotating table. The number of signal detection trolleys can also be reasonably set according to the diameter of the electric table.

[0050] Preferably, a light-transmitting cover 322 is installed on the light-transmitting window 321 to facilitate keeping the inside of the light-transmitting window clean. Preferably, the light-shielding cover 32 is arched, but it can also be made with a square cross-section.

[0051] Example 3

[0052] The difference between this embodiment and Embodiment 2 lies in the power supply method and specific structure of the signal detection and processing drive vehicle, as well as the specific structure of the light shield. Figure 11 This is a schematic diagram of the signal detection and processing drive vehicle in this embodiment. Figure 12 This is a cross-sectional view of the circular lane and the sunshade in this embodiment.

[0053] like Figure 11 , Figure 12As shown, the signal detection and processing drive vehicle 33 used in this embodiment has power supply carbon brushes 336 on its left and right sides, and conductive rails 324 on both sides of the light shield 32. The power supply carbon brushes 336 are in elastic electrical contact with the conductive rails 324. A wireless transmitter 3354 is also provided on the top of the signal detection and processing drive vehicle 33 for transmitting the processed signal of the signal processor 4 to the signal controller 5 on the electric dining table wirelessly. In this embodiment, when the signal detection and processing drive vehicle 33 travels on the circular track 31, the power supply carbon brushes 336 on both sides of the signal detection and processing drive vehicle 33 abut against the left and right sides of the circular track 31 and are in elastic electrical contact with the conductive rails 324. The conductive rails 324 are connected to an external power source to supply power to the signal detection and processing drive vehicle 33. After the signal detection and processing drive vehicle 33 detects the far-infrared signal from the arm through the light-transmitting window 321 via the first pyroelectric detector 335, the signal processor 4 connected to it receives and processes the detection signal, and transmits the processed information to the signal controller 5 on the electric dining table via the wireless transmitter 3354. The signal controller 5 controls the motor control switch of the rotating tabletop 2 of the electric dining table.

[0054] The preferred embodiment is to provide two parallel trolley limiting tracks 311 on the circular lane 31, such as... Figure 12 As shown, the front wheels 332 and rear wheels 333 of the signal detection and processing drive trolley 33 are positioned between two trolley limiting tracks 311. This reduces lateral deviation of the signal detection and processing drive trolley 33 due to external interference during operation, preventing damage to the light shield 32 caused by lateral deviation. The shape of the trolley limiting tracks can be as follows: Figure 5 The convex rib shown is provided on the outer edge of the front wheel 332 and the rear wheel 333 to limit the left and right offset of the front wheel 332 and the rear wheel 333.

[0055] Example 4

[0056] The only difference from Embodiment 3 is that this embodiment uses a mobile power supply. A mobile power supply, such as a rechargeable battery, is installed on the signal detection and processing drive vehicle 33 to provide energy for the wheel drive motor 334 of the signal detection and processing drive vehicle 33, and at the same time to provide energy for the first pyroelectric detector 335 and the second pyroelectric detector 371.

[0057] It should be explained that the description of the embodiments is used to help understand the present application, but does not constitute a limitation on the present application. In addition, the technical features involved in each of the above-described embodiments of the present application can be combined with each other as long as they do not conflict with each other. In addition, the above is only some embodiments of the present application, not all embodiments, based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

Claims

1. A start-stop control mechanism of an electric dining table, characterized by, The application relates to a signal detection processing driving trolley which comprises a ring-shaped lane, a light shield and a signal detection processing driving trolley. The ring-shaped lane is used for the signal detection processing driving trolley to walk; the light shield is arranged on both sides and above the ring-shaped lane, the top of the light shield is provided with a light window; the light window is a strip-shaped structure and is arranged along the circumferential direction of the ring-shaped lane; the straight line where the front wheel shaft of the signal detection processing driving trolley is located intersects with the straight line where the rear wheel shaft is located at the center of the ring-shaped lane; a first pyroelectric detector, a signal processor and a wheel driving motor are arranged on the signal detection processing driving trolley; the wheel driving motor provides walking power for the signal detection processing driving trolley; the first pyroelectric detector is arranged on the top of the signal detection processing driving trolley and comprises a first detection probe and a first light shield plate; the first light shield plate forms a light collecting angle of 60-100 degrees in the front and rear directions of the first detection probe; the first detection probe is used for detecting the far infrared signal which is transmitted through the light window; the wavelength range of the far infrared signal detected by the first detection probe is 9-10 micrometers; the first pyroelectric detector is connected with the signal processor; the signal processor receives and processes the detection signal and transmits the processing information to the signal controller on the electric dining table; the signal controller controls the motor control switch of the rotating table top of the electric dining table; the motor control switch controls the stop and start of the rotating table top.

2. The power table stop-start control mechanism according to claim 1, wherein The signal detection trolley is arranged on the top of the signal detection trolley and comprises a second detection probe and a second light shield plate; the second light shield plate forms a light collecting angle of 60-100 degrees in the front and rear directions of the second detection probe; the second detection probe is used for detecting the far infrared signal which is transmitted through the light window; the wavelength range of the far infrared signal detected by the second detection probe is 9-10 micrometers; the second detection probe is connected with the signal processor; the signal detection trolley walks on the ring-shaped lane; the signal detection trolley and the signal detection processing driving trolley are connected through a rigid rod.

3. The power table stop-start control mechanism according to claim 2, wherein The signal detection trolley is one or more; the signal detection trolleys are connected through rigid rods.

4. The power table stop-start control mechanism according to claim 3, wherein The inner wall of the light shield is provided with a power supply and signal interface and two photoelectric limit switches; the power supply and signal interface is signal connected with the signal controller; the two photoelectric limit switches are electrically connected with an external DC power supply, and the power supply and signal interface is respectively electrically connected with the two photoelectric limit switches; the signal detection processing driving trolley is driven to walk between the two photoelectric limit switches; the signal detection processing driving trolley is provided with a power supply and signal cable; one end of the power supply and signal cable is signal connected with the signal processor and electrically connected with the wheel driving motor; the other end of the power supply and signal cable is connected with the power supply and signal interface; the photoelectric limit switch is used for detecting the signal detection processing driving trolley, and when the signal detection processing driving trolley is detected, the power supply polarity of the driving motor on the signal detection processing driving trolley is changed through the power supply and signal interface, so that the signal detection processing driving trolley walks reversely.

5. The start-stop control mechanism for an electric table according to any one of claims 1 to 3, wherein The signal detection processing driving trolley is provided with a mobile power supply.

6. The start-stop control mechanism for an electric table according to one of claims 1 to 3, wherein The left and right sides of the signal detection processing driving trolley are provided with power supply carbon brushes, the two side walls of the light shield are provided with conductive rails, and the power supply carbon brushes are elastically electrically connected with the conductive rails.

7. The start-stop control mechanism for an electric table according to one of claims 1 to 3, wherein The annular track is provided with two parallel trolley limit tracks for limiting the movement of the wheels of the signal detection processing driving trolley between the two trolley limit tracks.

8. The power table stop-start control mechanism according to claim 1, wherein The light shield is arched.

9. A self-stopping and starting electric rotary dining table with sandwich, comprising a fixed table top and a rotary table top, characterized in that, The fixed table top is provided with the start-stop control mechanism of the electric dining table of any one of claims 1 to 8, and the start-stop control mechanism of the electric dining table is arranged around the fixed table top outside the rotating table top.

Images