Electric seat based on double sensing systems and intelligent electric furniture

Abstract

The utility model provides an electric seat based on a double-sensing system and intelligent electric furniture, the electric seat comprises a seat body, a seat support, an electric leg support, a leg support driving sensing mechanism and an anti-pinch sensing assembly, the anti-pinch sensing assembly is installed on the electric leg support, the anti-pinch sensing assembly is provided with a first sensor and a second sensor, and the first sensor is connected with the second sensor. The anti-pinch sensing assembly is provided with a bottom plane and an inclined plane, one sensor is located on the bottom plane, and the other sensor is located on the inclined plane, so that when the leg support driving sensing mechanism controls the electric leg support to swing, the first sensor and the second sensor are matched with each other to detect whether an object exists below the electric leg support or not. When the first sensor or the second sensor detects the objects, the anti-pinch mechanism is triggered to prevent the electric leg support from continuously swinging, so that the anti-pinch sensing assembly can play a role in preventing pinching injury, and the use safety of the electric seat is ensured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electric chairs, in particular to an electric chair based on a double-sensing system and intelligent electric furniture. BACKGROUND

[0002] Electric chairs belong to a kind of leisure chairs, which can meet people's different needs such as sitting, lying and lying, and provide comfortable use experience. Among them, electric chairs equipped with electric leg supports are particularly favored by users because they can provide leg support and relaxation functions. Such chairs can flexibly adjust the swing angle of the leg support through an electric mechanism to adapt to users of different body types and sitting preferences, greatly improving the comfort and convenience of use. For example, existing patents CN212815296U and CN221430711U.

[0003] At present, when the electric chair with a leg support adjusts the swing angle of the leg support, if there is an object directly below the leg support, for example, a pet is moving at the bottom of the leg support, or a person accidentally or curiously puts his hand into the bottom of the leg support, the leg support may come into contact with these objects during the closing process and be clamped due to the structural design of the chair. This clamping action may cause damage to the object, such as clamping the hand, other parts of the body or pets, etc., so that the existing electric chair has safety hazards.

[0004] Therefore, the electric chair needs to add an anti-pinch structure to prevent the adjustment of the leg support from pinching the object. Content of the utility model

[0005] The purpose of the present disclosure is to overcome the shortcomings of the prior art and provide an electric chair based on a double-sensing system and intelligent electric furniture that adopts double sensing to prevent objects from being pinched.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] An electric chair based on a double-sensor system, comprising a chair body, a chair support, an electric leg rest, a leg rest driving and sensing mechanism, and an anti-pinch sensor assembly, the chair support being connected to the bottom of the chair body; the electric leg rest being movably connected to one side of the chair body; the leg rest driving and sensing mechanism being installed at the bottom of the chair body, an input end of the leg rest driving and sensing mechanism being used to connect to an external power source, a control output end of the leg rest driving and sensing mechanism being electrically connected to the electric leg rest, so as to form an adjustable swing area between the electric leg rest and the side of the chair body; the anti-pinch sensor assembly being installed on the side of the electric leg rest facing the chair support, the anti-pinch sensor assembly having a bottom plane and an inclined plane, the bottom plane being located on the side of the anti-pinch sensor assembly close to the leg rest driving and sensing mechanism, the inclined plane being located on the side of the anti-pinch sensor assembly away from the leg rest driving and sensing mechanism, the anti-pinch sensor assembly being provided with a first sensor and a second sensor, the first sensor being located on the bottom plane, the second sensor being located on the inclined plane, sensing and collecting ends of the leg rest driving and sensing mechanism being electrically connected to the first sensor and the second sensor respectively, the first sensor being used to gradually weaken the sensing sensitivity when the electric leg rest swings downward, and gradually enhance the sensing sensitivity when the electric leg rest swings upward, the second sensor being used to gradually enhance the sensing sensitivity when the electric leg rest swings downward, and gradually weaken the sensing sensitivity when the electric leg rest swings upward.

[0008] In one of the embodiments, an angle formed between an extension line of the bottom plane and an extension line of the inclined plane is 40-50°.

[0009] In one of the embodiments, an angle formed between an extension line of the bottom plane and an extension line of the inclined plane is 45°.

[0010] In one of the embodiments, an angle range of the swing area is 0-90°.

[0011] In one of the embodiments, the first sensor comprises a first sensing panel and a first sensing element, the first sensing panel being located in the inner cavity of the anti-pinch sensor assembly, an output end of the first sensing panel being electrically connected to the first sensing element, a control output end of the leg rest driving and sensing mechanism being electrically connected to an input end of the first sensing panel, a sensing and collecting end of the first sensing element being electrically connected to a data receiving end of the first sensing panel, the first sensing element being located on the bottom plane.

[0012] In one of the embodiments, the anti-pinch sensor assembly is provided with a first through hole, the first through hole being in communication with the inner cavity of the anti-pinch sensor assembly, the first through hole being located on the bottom plane, the first sensing element being arranged in the first through hole.

[0013] In one of the embodiments, the second sensor comprises a second sensing panel and a second sensing element, the second sensing panel is located in the inner cavity of the anti-pinch sensing assembly, the output end of the second sensing panel is electrically connected with the second sensing element, the control output end of the leg rest driving sensing mechanism is electrically connected with the input end of the second sensing panel, and the sensing collection end of the second sensing element is electrically connected with the data receiving end of the second sensing panel.

[0014] In one of the embodiments, the anti-pinch sensing assembly is provided with a second through hole, the second through hole is communicated with the inner cavity of the anti-pinch sensing assembly, and the second sensing element is arranged in the second through hole.

[0015] In one of the embodiments, the electric seat further comprises a heat dissipation block, and the heat dissipation block is located in the inner cavity of the anti-pinch sensing assembly.

[0016] An intelligent electric furniture comprises the electric seat based on the double-sensing system according to any one of the above embodiments.

[0017] Compared with the prior art, the present disclosure has at least the following advantages:

[0018] The electric seat based on the double-sensing system described above adopts the anti-pinch sensing assembly, the anti-pinch sensing assembly has a first sensor and a second sensor, that is, two sensors are adopted, one of which is located on the bottom plane and the other of which is located on the inclined plane. When the leg rest driving sensing mechanism controls the swing of the electric leg rest, the first sensor and the second sensor cooperate with each other to detect whether there is an object, such as a pet, a human hand or other foreign matter, under the electric leg rest. When the first sensor or the second sensor detects the above object, the anti-pinch mechanism is triggered to prevent the electric leg rest from continuing to swing, thereby preventing the anti-pinch sensing assembly from being pinched and ensuring the safety of the electric seat. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 FIG. 1 is a structural schematic view of an electric seat based on a double-sensing system according to an embodiment of the present disclosure;

[0021] Figure 2 FIG. 2 is a structural schematic view of an electric seat based on a double-sensing system according to another embodiment of the present disclosure; Figure 1Structure diagram of the anti-pinch sensor assembly in the electric seat shown;

[0022] Figure 3 For Figure 2 Structure diagram of the anti-pinch sensor assembly in another angle shown;

[0023] Figure 4 For Figure 2 Structure sectional view of the anti-pinch sensor assembly shown;

[0024] Figure 5 For Figure 1 Structure diagram of the electric seat when the electric leg rest swings to the maximum angle shown;

[0025] Figure 6 For Figure 1 Structure diagram of the electric seat when the electric leg rest swings to a certain angle shown;

[0026] Figure 7 For Figure 1 Structure diagram of the electric seat when the electric leg rest is fully retracted shown.

[0027] Reference signs: 10, electric seat; 100, seat body; 200, seat support; 300, electric leg rest; 400, anti-pinch sensor assembly; 401, bottom plane; 402, inclined plane; 403, first through hole; 404, second through hole; 410, first sensor; 411, first sensing panel; 412, first sensing element; 420, second sensor; 421, second sensing panel; 422, second sensing element; 500, heat dissipation block. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or a middle element can be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] In order to better understand the technical solutions and beneficial effects of the disclosure, the disclosure will be further described in detail below in combination with specific embodiments:

[0032] Please refer to Figure 1 , which is an electric seat 10 based on a double-sensing system according to an embodiment of the present application, comprising a seat body 100, a seat support 200, an electric leg rest 300, a leg rest driving and sensing mechanism (not shown) and an anti-pinch sensing assembly 400.

[0033] The seat support 200 is connected to the bottom of the seat body 100; the electric leg rest 300 is movably connected to one side of the seat body 100; the leg rest driving and sensing mechanism is installed at the bottom of the seat body 100, the input end of the leg rest driving and sensing mechanism is used to connect to an external power source, and the control output end of the leg rest driving and sensing mechanism is electrically connected with the electric leg rest 300, so that the leg rest driving and sensing mechanism drives the electric leg rest 300 to swing outwardly or inwardly, thereby forming an adjustable swing area 10a between the electric leg rest 300 and the side of the seat body 100; in combination Figure 2 and Figure 3 As shown in the drawings, the anti-pinch sensing assembly 400 is installed on the side of the electric leg rest 300 facing the seat support 200, the anti-pinch sensing assembly 400 has a bottom plane 401 and an inclined plane 402, the bottom plane 401 is located on the side of the anti-pinch sensing assembly 400 close to the leg rest driving and sensing mechanism, the inclined plane 402 is located on the side of the anti-pinch sensing assembly 400 away from the leg rest driving and sensing mechanism, the anti-pinch sensing assembly 400 is provided with a first sensor 410 and a second sensor 420, the first sensor 410 is located on the bottom plane 401, and the second sensor 420 is located on the inclined plane 402, the sensing and collecting end of the leg rest driving and sensing mechanism is electrically connected with the first sensor 410 and the second sensor 420 respectively, so as to collect the sensing information of the first sensor 410 and the second sensor 420, the first sensor 410 is used to gradually weaken the sensing sensitivity when the electric leg rest 300 swings downwardly, and gradually enhance the sensing sensitivity when the electric leg rest 300 swings upwardly, and the second sensor 420 is used to gradually enhance the sensing sensitivity when the electric leg rest 300 swings downwardly, and gradually weaken the sensing sensitivity when the electric leg rest 300 swings upwardly.

[0034] In the embodiment, the leg rest driving sensing mechanism is used to drive the electric leg rest 300 to swing at a certain angle, and the leg rest driving sensing mechanism also controls the first sensor 410 and the second sensor 420 when the electric leg rest 300 swings, so as to change the sensing sensitivities of the two sensors, wherein the sensing sensitivity values between the first sensor 410 and the second sensor 420 are in a complementary relationship, that is, when the sensing sensitivity of the first sensor 410 is weakened, the sensing sensitivity of the second sensor 420 is enhanced, and the total value of the sensing sensitivities of the first sensor 410 and the second sensor 420 is always unchanged, and vice versa, when the sensing sensitivity of the second sensor 420 is weakened, the sensing sensitivity of the first sensor 410 is enhanced.

[0035] In a preferred embodiment, the first sensor 410 and / or the second sensor 420 are infrared sensors.

[0036] In the embodiment, the electric seat 10 adopts the anti-pinch sensing assembly 400, which has the first sensor 410 and the second sensor 420, that is, adopts double sensors, wherein one sensor is located on the bottom plane 401, and the other sensor is located on the inclined plane 402, which makes the first sensor 410 and the second sensor 420 cooperate with each other when the leg rest driving sensing mechanism controls the electric leg rest 300 to swing, so as to detect whether there is an object, such as a pet, a human hand or other foreign matter, etc., below the electric leg rest 300, when the first sensor 410 or the second sensor 420 detects the above object, the anti-pinch mechanism is triggered to prevent the electric leg rest 300 from continuing to swing, thereby the setting of the anti-pinch sensing assembly 400 can play a role in preventing injury and ensuring the use safety of the electric seat 10.

[0037] It can be understood that the first sensor 410 and the second sensor 420 are both used to sense whether there is an object below the electric leg rest 300, when the electric leg rest 300 forms the maximum angle with the side of the seat body 100, that is, the electric leg rest 300 is opened to the maximum angle, then the first sensor 410 is used to sense whether there is an object, and the sensing sensitivity thereof is the highest, and the second sensor 420 is closed, and the effect diagram is as shown in Figure 5 When the electric leg rest 300 is retracted from the position corresponding to the maximum angle to the seat body 100, the sensing sensitivity of the first sensor 410 gradually decreases, and the sensing sensitivity of the second sensor 420 gradually increases, when the electric leg rest 300 is retracted to a certain angle, the second sensor 420 is mainly used to detect whether there is an object directly below the electric leg rest 300, at this time, the sensing sensitivity of the first sensor 410 is weaker than that of the second sensor 420, and the effect diagram is as shown in Figure 6As shown, until the electric leg rest 300 is retracted, the first sensor 410 is closed, while the second sensor 420 is most sensitive, which can prevent the first sensor 410 from misjudging that there is an object, resulting in the electric leg rest 300 unable to retract normally, and the effect diagram is as shown in Figure 7 .

[0038] Further, the first sensor 410 is used to gradually weaken the sensing sensitivity when the electric leg rest 300 swings downward, and gradually enhance the sensing sensitivity when it swings upward, and the second sensor 420 is used to gradually enhance the sensing sensitivity when the electric leg rest 300 swings downward, and gradually weaken the sensing sensitivity when it swings upward.

[0039] In the present embodiment, during the downward swinging of the electric leg rest 300, the sensing sensitivity of the first sensor 410 gradually decreases, and the sensing sensitivity of the second sensor 420 gradually increases, the sensing area of the first sensor 410 gradually moves from the lower side of the electric leg rest 300 to the side of the seat body 100, which makes the first sensor 410 no longer sensitive when sensing, and the sensing area of the second sensor 420 gradually moves from the front of the seat body 100 to the lower side of the electric leg rest 300, which makes the second sensor 420 more sensitive when sensing, gradually becoming the main body for detecting objects, and the first sensor 410 no longer serves as the main body for detecting objects. It can be understood that, before the electric leg rest 300 swings downward by a certain angle or is retracted, the first sensor 410 serves as the main body for detecting whether there is an object under the electric leg rest 300, when the first sensor 410 detects that there is an object under the electric leg rest 300, sensing data information is obtained and fed back to the leg rest driving sensing mechanism, the data information reaches the threshold value for triggering the anti-pinch mechanism, so that the leg rest driving sensing mechanism prevents the electric leg rest 300 from swinging downward, when there is no object under the electric leg rest 300, the leg rest driving sensing mechanism can drive the electric leg rest 300 to swing downward, and the second sensor 420 gradually no longer serves as the main body for detecting objects, even if a living being such as a person or a pet passes through the sensing area of the second sensor 420, the anti-pinch mechanism will not be triggered due to the sensing condition of the second sensor 420. When the electric leg rest 300 swings downward, for the first sensor 410, the sensing sensitivity decreases with the increase of the downward swinging angle of the electric leg rest 300, which gradually increases the threshold value for triggering the anti-pinch mechanism when the first sensor 410 detects an object, and the sensing area of the first sensor 410 gradually moves from the horizontal plane to the side of the seat body 100, even if the first sensor 410 detects the seat body 100, but cannot reach the threshold value for triggering the anti-pinch mechanism, so that the leg rest driving sensing mechanism does not prevent the electric leg rest 300 from swinging due to the sensing condition of the first sensor 410; for the second sensor 420, the sensing sensitivity increases with the increase of the downward swinging angle of the electric leg rest 300, which gradually decreases the threshold value for triggering the anti-pinch mechanism when the second sensor 420 detects an object, and the sensing area of the second sensor 420 gradually moves to the lower side of the electric leg rest 300 when the electric leg rest 300 swings downward, gradually becoming the main body for detecting whether there is an object under the electric leg rest 300, when the electric leg rest 300 swings downward, if the second sensor 420 detects that a living being such as a pet passes through the lower side of the electric leg rest 300, sensing data is collected and fed back to the leg rest driving sensing mechanism, the data reaches the threshold value for triggering the anti-pinch mechanism when the second sensor 420 detects an object, and the anti-pinch mechanism is triggered, so that the leg rest driving sensing mechanism prevents the electric leg rest 300 from continuing to swing downward, otherwise, when there is no living being passing through the lower side of the electric leg rest 300, the electric leg rest 300 can continue to swing downward regardless of the sensing condition of the first sensor 410.

[0040] Generally speaking, when the electric leg rest 300 swings down, the sensing sensitivity of the second sensor 420 gradually increases, while the sensing sensitivity of the first sensor 410 gradually decreases, so that the second sensor 420 gradually becomes the main sensor in detecting whether an object exists, which makes the first sensor 410 not trigger the anti-pinch mechanism even if it detects the seat body 100 when there is no living object under the electric leg rest 300, so that the electric leg rest 300 can smoothly swing down or be completely retracted, and the second sensor 420 is used to detect whether there is an object under the electric leg rest 300 at any time when the electric leg rest 300 swings down, and make the leg rest driving sensing mechanism stop the electric leg rest 300 from continuing to swing when an object is detected, thereby preventing the situation of being pinched during swinging.

[0041] In another embodiment, during the upward swing of the motorized leg rest 300, the sensing sensitivity of the first sensor 410 gradually increases, and the sensing sensitivity of the second sensor 420 gradually decreases, the sensing area of the second sensor 420 gradually moves away from the lower portion of the motorized leg rest 300, which makes the second sensor 420 no longer sensitive when sensing, the sensing area of the first sensor 410 gradually moves from the side of the seat body 100 to the lower portion of the motorized leg rest 300, which makes the first sensor 410 more sensitive when sensing, gradually becomes the main body for detecting objects, and the second sensor 420 is no longer the main body for detecting objects. It can be understood that before the motorized leg rest 300 swings to a certain angle or is fully unfolded, the second sensor 420 is the main body for detecting whether there is an object under the motorized leg rest 300, when the second sensor 420 detects that there is an object under the motorized leg rest 300, the sensing data information is obtained and fed back to the leg rest driving sensing mechanism, the data information reaches the threshold value of triggering the anti-pinch mechanism, so that the leg rest driving sensing mechanism prevents the upward swing of the motorized leg rest 300, when there is no object under the motorized leg rest 300, the leg rest driving sensing mechanism can drive the motorized leg rest 300 to swing upward, and the first sensor 410 gradually is no longer the main body for detecting objects, even if the first sensor 410 detects the side of the seat body 100, it is not enough to reach the threshold value of triggering the anti-pinch mechanism, so the anti-pinch mechanism will not be triggered due to the sensing condition of the first sensor 410.When the electric leg rest 300 swings upward, for the second sensor 420, its sensing sensitivity decreases with the increase of the swing angle of the electric leg rest 300, which gradually increases the threshold for triggering the anti-pinch mechanism when the second sensor 420 detects an object, and the sensing area of the second sensor 420 gradually moves away from the electric seat 10 from below the electric leg rest 300. After a certain angle of swing or unfolding, even if the second sensor 420 detects that the sensing area has a living object passing through, it cannot reach the threshold for triggering the anti-pinch mechanism, so the leg rest driving sensing mechanism will not be interfered by the second sensor 420 to prevent the electric leg rest 300 from swinging; for the first sensor 410, its sensing sensitivity increases with the increase of the swing angle of the electric leg rest 300, which gradually reduces the threshold for triggering the anti-pinch mechanism when the first sensor 410 detects an object, and the sensing area of the first sensor 410 gradually moves from the side of the seat body 100 to below the electric leg rest 300, gradually becoming the main body for detecting whether there is an object below the electric leg rest 300. When the electric leg rest 300 swings upward, if the first sensor 410 detects that there is a living object passing through below the electric leg rest 300, it collects sensing data and feeds back to the leg rest driving sensing mechanism. The data reaches the threshold for triggering the anti-pinch mechanism when the first sensor 410 detects an object, and then triggers the anti-pinch mechanism, so that the leg rest driving sensing mechanism prevents the electric leg rest 300 from continuing to swing upward. Otherwise, when there is no living object passing through below the electric leg rest 300, no matter how the second sensor 420 senses, the electric leg rest 300 can continue to swing upward.

[0042] Overall, when the electric leg rest 300 swings upward, the sensing sensitivity of the first sensor 410 gradually increases, and the sensing sensitivity of the second sensor 420 gradually decreases, so that the first sensor 410 gradually becomes the main body for detecting whether there is an object. This makes it possible for the electric leg rest 300 to swing upward smoothly or unfold completely without triggering the anti-pinch mechanism when there is no living object passing through below the electric leg rest 300, even if there is a living object such as a person or a pet passing through the sensing area of the second sensor 420 in front of the electric seat 10. The first sensor 410 is used to detect whether there is an object below the electric leg rest 300 at any time when the electric leg rest 300 swings downward, and to prevent the electric leg rest 300 from continuing to swing when an object is detected, thereby preventing injury during the swing.

[0043] If only one sensor is used, when the sensor is only arranged on the bottom plane 401 of the anti-pinch sensing assembly 400 in the present scheme, the sensor will continuously sense whether there is an object during the retracting process of the electric leg rest 300, which causes the projection sensing area of the sensor to gradually move from the horizontal plane to the side of the seat body 100 during the retracting of the electric leg rest 300. At this time, the sensor recognizes the seat body 100 and feeds back the collected information to the leg rest driving sensing mechanism. After the mechanism obtains the information, the anti-pinch mechanism is triggered to prevent the electric leg rest 300 from further retracting, which makes the electric leg rest 300 unable to normally retract, so that there is always an angle between the electric leg rest 300 and the side of the seat body 100. When the sensor is only arranged on the inclined plane 402 of the anti-pinch sensing assembly 400 in the present scheme, if the electric leg rest 300 is in the state of being opened to the maximum angle, the sensor cannot sense whether there is an object directly below the electric leg rest 300, but senses whether there is an object in front of the electric seat 10. When a person is located on the left side, the right side or the back side of the electric seat 10, even if there is a living object below the electric leg rest 300, for example, a pet passes by, or a person stretches his hand or other parts into the lower part of the electric leg rest 300 due to improper operation or curiosity, as long as there is no living object in front of the electric seat 10, the electric leg rest 300 will retract. This situation exists that the electric leg rest 300 injures the living object, and further exists a safety hazard. In addition, when a person or a pet passes in front of the electric seat 10, the sensor detects that there is a living object in its sensing area. Regardless of whether there is an object directly below the electric leg rest 300, the electric leg rest 300 cannot normally retract, which greatly reduces the user's experience of using the electric seat 10 and does not meet the user's demand for using the electric seat 10. Therefore, two sensors, i.e., the first sensor 410 and the second sensor 420, are used in the present scheme, and the first sensor 410 is located on the bottom plane 401 and the second sensor 420 is located on the inclined plane 402, so that the two sensors better cooperate to detect whether there is an object directly below the electric leg rest 300, so as to ensure that the electric leg rest 300 normally swings downward or upward when there is no object below the electric leg rest 300, and the leg rest driving sensing mechanism prevents the electric leg rest 300 from continuing to swing when any one of the first sensor 410 and the second sensor 420 detects that there is an object below the electric leg rest 300.

[0044] As shown in Figure 2 In one embodiment, the angle θ between the extension line of the bottom plane 401 and the extension line of the inclined plane 402 is 40-50°. In a more preferred embodiment, the angle θ between the extension line of the bottom plane 401 and the extension line of the inclined plane 402 is 45°.

[0045] In one embodiment, the angle range α of the swing area is 0-90°. It can be understood that when the electric leg rest 300 is closed with the side of the seat body 100, the angle formed is 0°, that is, the bottom surface of the electric leg rest 300 abuts against the side of the seat body 100. When the electric leg rest 300 is opened to the maximum position, a 90° angle is formed between the electric leg rest 300 and the side of the seat body 100.

[0046] like Figure 4 As shown, in one embodiment, the first sensor 410 includes a first sensing panel 411 and a first sensing element 412. The first sensing panel 411 is located inside the anti-pinch sensing assembly 400. The output end of the first sensing panel 411 is electrically connected to the first sensing element 412. The control output end of the leg support drive sensing mechanism is electrically connected to the input end of the first sensing panel 411. The sensing acquisition end of the first sensing element 412 is electrically connected to the data receiving end of the first sensing panel 411. The first sensing element 412 is located on the bottom plane 401. It can be understood that when the first sensor 410 is working, the leg support drive sensing mechanism drives the first sensing panel 411 to be energized. At this time, the first sensing element 412 starts up and enters the working state. When the first sensing element 412 senses an object, it collects light sensing information and converts this information into an electrical signal through the conversion circuit of the first sensing panel 411. The electrical signal is then fed back to the leg support drive sensing mechanism, thereby triggering the anti-pinch mechanism and preventing the electric leg support 300 from continuing to swing. Furthermore, the anti-pinch sensing component 400 has a first through hole 403, which communicates with the inner cavity of the anti-pinch sensing component 400. The first through hole 403 is located on the bottom plane 401. The first sensing element 412 passes through the first through hole 403, so that after the first sensing element 412 passes through the first through hole 403, its sensing area is projected towards the horizontal plane to detect whether there is an object in the sensing area. In this embodiment, the first sensing element 412 is an infrared sensing element.

[0047] like Figure 4As shown, in one of the embodiments, the second sensor 420 comprises a second sensing panel 421 and a second sensing element 422, the second sensing panel 421 is located in the inner cavity of the anti-pinch sensing assembly 400, the output end of the second sensing panel 421 is electrically connected with the second sensing element 422, the control output end of the leg support driving sensing mechanism is electrically connected with the input end of the second sensing panel 421, the sensing collection end of the second sensing element 422 is electrically connected with the data receiving end of the second sensing panel 421, and the second sensing element 422 is located on the inclined surface 402. It can be understood that when the second sensor 420 works, the leg support driving sensing mechanism drives the second sensing panel 421 to be electrified, at this time, the second sensing element 422 is started and enters the working state, and when the second sensing element 422 senses an object, the light sensing information is collected, and the information is converted into an electrical signal through the conversion circuit of the second sensing panel 421, and the electrical signal is fed back to the leg support driving sensing mechanism, thereby triggering the anti-pinch mechanism, so as to prevent the electric leg support 300 from continuing to swing. Further, the anti-pinch sensing assembly 400 is provided with a second through hole 404, the second through hole 404 is in communication with the inner cavity of the anti-pinch sensing assembly 400, the second through hole 404 is located on the inclined surface 402, and the second sensing element 422 is arranged in the second through hole 404, so that after the second sensing element 422 passes through the second through hole 404, the sensing area thereof is projected towards the horizontal plane, so as to detect whether there is an object in the sensing area. In this embodiment, the second sensing element 422 is an infrared sensing element.

[0048] Further, when the leg support driving sensing mechanism drives the electric leg support 300 to swing, the parameters of the resistance or capacitance in the first sensing panel 411 and the second sensing panel 421 are dynamically adjusted. Specifically, when the electric leg support 300 swings outward, the resistance or capacitance value of the first sensing panel 411 is increased, and the resistance or capacitance value of the second sensing panel 421 is decreased, so that the voltage of the first sensing element 412 is increased, the sensing sensitivity is enhanced, and the voltage of the second sensing element 422 is decreased, the sensing sensitivity is reduced; on the contrary, when the electric leg support 300 is retracted inward, the resistance or capacitance value of the second sensing panel 421 is increased, and the resistance or capacitance value of the first sensing panel 411 is decreased, so that the sensing sensitivity of the second sensing element 422 is enhanced, and the sensing sensitivity of the first sensing element 412 is reduced.

[0049] As Figure 4As shown, in one of the embodiments, the electric chair 10 further comprises a heat dissipation block 500, which is located in the inner cavity of the anti-pinch sensing assembly 400. In this embodiment, the heat dissipation block 500 is in contact with the first sensing panel 411 and the second sensing panel 421, which makes the heat generated by the first sensing panel 411 and the second sensing panel 421 transmitted to the shell of the anti-pinch sensing assembly 400 through the heat dissipation block 500, so as to achieve the effect of equal heating of the whole shell, preventing the first sensing panel 411 and / or the second sensing panel 421 from being damaged by local overheating during work. In other embodiments, the heat dissipation block 500 can be any one of heat dissipation silicone grease, heat dissipation silica gel, and heat dissipation fins.

[0050] The present disclosure also provides an intelligent electric furniture, which comprises the electric chair 10 based on the double-sensing system according to any one of the above embodiments.

[0051] Compared with the prior art, the present disclosure has at least the following advantages:

[0052] The electric chair 10 based on the double-sensing system described above adopts the anti-pinch sensing assembly 400, which has the first sensor 410 and the second sensor 420, that is, adopts double sensors, one of which is located on the bottom plane 401 and the other of which is located on the inclined plane 402, which makes the first sensor 410 and the second sensor 420 cooperate with each other when the leg rest driving sensing mechanism controls the electric leg rest 300 to swing, so as to detect whether there is an object such as a pet, a human hand or other foreign matter under the electric leg rest 300, and when the first sensor 410 or the second sensor 420 detects the above object, the anti-pinch mechanism is triggered to prevent the electric leg rest 300 from continuing to swing, thereby preventing the anti-pinch sensing assembly 400 from being pinched and ensuring the safety of the electric chair 10.

[0053] The above-described embodiments only express several embodiments of the present disclosure, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, a number of modifications and improvements can be made, which are within the scope of protection of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. A motorized seat based on a dual-sensor system, characterized in that, The utility model relates to a chair with anti-pinch function, which comprises a seat body, a seat support connected to the bottom of the seat body, an electric leg rest movably connected to one side of the seat body, a leg rest driving sensing mechanism installed at the bottom of the seat body, an input end of the leg rest driving sensing mechanism being used to connect to an external power source, a control output end of the leg rest driving sensing mechanism being electrically connected to the electric leg rest to form an adjustable swing area between the electric leg rest and the side of the seat body, and an anti-pinch sensing assembly installed on the side of the electric leg rest facing the seat support, the anti-pinch sensing assembly having a bottom plane and an inclined plane, the bottom plane being located on the side of the anti-pinch sensing assembly close to the leg rest driving sensing mechanism, the inclined plane being located on the side of the anti-pinch sensing assembly away from the leg rest driving sensing mechanism, the anti-pinch sensing assembly being provided with a first sensor and a second sensor, the first sensor being located on the bottom plane, the second sensor being located on the inclined plane, sensing collection ends of the leg rest driving sensing mechanism being electrically connected to the first sensor and the second sensor respectively, the first sensor being used to gradually weaken the sensing sensitivity when the electric leg rest swings downward and gradually strengthen the sensing sensitivity when the electric leg rest swings upward, and the second sensor being used to gradually strengthen the sensing sensitivity when the electric leg rest swings downward and gradually weaken the sensing sensitivity when the electric leg rest swings upward. An angle formed between an extension line of the bottom plane and an extension line of the inclined plane is 40-50°. An angle formed between an extension line of the bottom plane and an extension line of the inclined plane is 45°. An angle range of the swing area is 0-90°. The first sensor comprises a first sensing panel and a first sensing element, the first sensing panel being located in a cavity of the anti-pinch sensing assembly, an output end of the first sensing panel being electrically connected to the first sensing element, a control output end of the leg rest driving sensing mechanism being electrically connected to an input end of the first sensing panel, a sensing collection end of the first sensing element being electrically connected to a data receiving end of the first sensing panel, and the first sensing element being located on the bottom plane. The anti-pinch sensing assembly is provided with a first through hole, the first through hole being in communication with the cavity of the anti-pinch sensing assembly, the first through hole being located on the bottom plane, and the first sensing element being arranged in the first through hole.

2. The dual-sensor system based power seat according to claim 1, wherein, The second sensor comprises a second sensing panel and a second sensing element, the second sensing panel being located in the cavity of the anti-pinch sensing assembly, an output end of the second sensing panel being electrically connected to the second sensing element, a control output end of the leg rest driving sensing mechanism being electrically connected to an input end of the second sensing panel, a sensing collection end of the second sensing element being electrically connected to a data receiving end of the second sensing panel, and the second sensing element being located on the inclined plane.

3. The dual-sensor system based power seat according to claim 2, wherein, The anti-pinch sensing assembly is provided with a second through hole, the second through hole being in communication with the cavity of the anti-pinch sensing assembly, the second through hole being located on the inclined plane, and the second sensing element being arranged in the second through hole.

4. The dual-sensor system based power seat according to claim 1, wherein, ​ 5. The dual-sensor system based power seat according to claim 1, wherein, ​ 6. The dual-sensor system based power seat according to claim 5, wherein, ​ 7. The dual-sensor system based power seat according to claim 1, wherein, ​ 8. The dual-sensor system based power seat according to claim 7, wherein, ​ 9. The dual-sensor system based power seat according to claim 1, wherein, The electric seat further comprises a heat dissipation block located in the inner cavity of the anti-pinch sensor assembly.

10. An intelligent motorized furniture, characterized by, An electric seat based on a dual-sensor system comprising any one of claims 1 to 9.

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