Infrared anti-collision lifting cabinet

Abstract

The utility model discloses an infrared anti-collision lifting cabinet which comprises an outer cabinet, a lifting cabinet body, a lifting control assembly and an infrared grating assembly, and a first mounting plate and a second mounting plate are oppositely arranged below a bottom plate of the lifting cabinet body; the infrared grating assembly comprises an infrared transmitter and a correspondingly arranged infrared receiver, the infrared transmitter is arranged on the first mounting plate, the infrared receiver is arranged on the second mounting plate, the infrared transmitter transmits infrared beams to the corresponding infrared receiver to form a plurality of infrared beams, and the infrared beams are parallel and located on the same plane; the infrared receiver generates a shading signal when detecting that the infrared light beam is shaded, the lifting control assembly receives the shading signal and controls the lifting cabinet to act according to the shading signal, and the situation that the lifting cabinet body encounters an obstacle in the descending process, and consequently articles and even the lifting cabinet body are damaged is avoided. Compared with the prior art, more accurate obstacle detection can be achieved, and therefore the anti-collision function is achieved when the lifting cabinet body descends.

Description

Technical Field

[0001] The utility model relates to the field of intelligent furniture, in particular to an infrared anti-collision lifting cabinet. Background Art

[0002] The cabinets used in modern families are generally wall cabinets fixed to the upper space of the wall, which is conducive to saving space, but the excessively high position often makes it inconvenient to store and access items; the same situation is also the case with wardrobes, wine cabinets, bookcases and other storage cabinets, which often cause various inconveniences because the storage space is too high.

[0003] To solve the above problems, there are electric lift cabinets on the market, but ordinary electric lift cabinets will not stop when the bottom hits an obstacle while descending, or after hitting an obstacle, they will determine whether they have encountered an obstacle based on the running resistance encountered by the motor, and then stop and retreat. However, lift cabinets often have difficulty in sensitively judging the obstacle situation and taking actions after encountering an obstacle due to their own large gravity, which may damage the items below or even the lift cabinet's own structure, giving users a bad experience. Utility Model Content

[0004] The main purpose of the utility model is to provide an infrared anti-collision lifting cabinet to prevent the lifting cabinet from hitting obstacles and causing damage when descending, thereby improving the user experience.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes an infrared anti-collision lifting cabinet comprising:

[0006] An outer cabinet, the outer cabinet having a lifting chamber with an opening at the lower end;

[0007] A lifting cabinet is arranged in the lifting chamber, the lifting cabinet comprises a bottom plate, and a first mounting plate and a second mounting plate are arranged opposite to each other below the bottom plate;

[0008] A lifting control component, used to control the lifting of the lifting cabinet;

[0009] An infrared grating assembly, comprising an infrared transmitter and an infrared receiver arranged corresponding to the infrared transmitter, wherein the infrared transmitter is arranged on the first mounting plate, and the infrared receiver is arranged on the second mounting plate, and the infrared transmitter transmits a plurality of infrared light beams to the corresponding infrared receiver to form an infrared grating, and the infrared light beams are parallel and located in the same plane;

[0010] The infrared receiver generates a light shielding signal when detecting that the infrared light beam is blocked, and the lifting control component receives the light shielding signal and controls the movement of the lifting cabinet according to the light shielding signal.

[0011] Optionally, the lifting control assembly includes:

[0012] A lifting mechanism connected to the lifting cabinet;

[0013] A driving motor, used to drive the lifting mechanism to move;

[0014] The controller is connected to the driving motor and the infrared grating assembly, and is used for receiving the shading signal and controlling the action of the driving motor.

[0015] Optionally, the lifting cabinet has a accommodating chamber with a front end opening.

[0016] Optionally, the plurality of infrared transmitters are evenly distributed in the long axis direction of the first mounting plate, and the plurality of infrared receivers are evenly distributed in the long axis direction of the second mounting plate.

[0017] Optionally, the infrared anti-collision lifting cabinet also includes a flexible layer located at the bottom of the lifting cabinet body, the flexible layer is arranged opposite to the bottom plate and forms a cavity with the bottom plate, the first mounting plate and the second mounting plate, the infrared light beam is located in the cavity, and the flexible layer undergoes elastic deformation when subjected to external force.

[0018] Optionally, the flexible layer further includes a plurality of protrusions, wherein the protrusions are located on a side of the flexible layer close to the infrared light beam, and the highest points of the protrusions are lower than the plane where the infrared light beam is located when the flexible layer is not deformed.

[0019] Optionally, a projection of the protrusion on the plane where the infrared light beam is located intersects with any of the infrared light beams.

[0020] Optionally, the infrared anti-collision lifting cabinet further includes a first buffer portion disposed between the flexible layer and the first mounting plate, and a second buffer portion disposed between the flexible layer and the second mounting plate.

[0021] Optionally, the flexible layer is made of opaque material.

[0022] Optionally, a collision sensor is further provided at the bottom of the first mounting plate and the second mounting plate, and the collision sensor is connected to the controller.

[0023] The beneficial effects of the utility model are:

[0024] An infrared grating assembly is arranged at the bottom of the lifting cabinet, and the infrared grating assembly includes an infrared transmitter for emitting infrared light beams and an infrared receiver for receiving infrared light beams. When the lifting cabinet encounters an obstacle at the bottom while descending, at least one infrared light beam of the infrared grating is blocked, and the corresponding infrared receiver generates a shading signal and sends it to the controller. The controller controls the lifting cabinet to perform obstacle avoidance actions to prevent the lifting cabinet from hitting the objects below during the descent, thereby causing damage to the objects below or even the lifting cabinet, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 This is a front view of an embodiment of the infrared anti-collision lifting cabinet of the utility model;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of a traditional lifting cabinet;

[0028] Figure 3 This is a working schematic diagram of an embodiment of the infrared grating assembly of the utility model;

[0029] Figure 4 It is an assembly diagram of an embodiment of the infrared grating component of the utility model;

[0030] Figure 5 It is an assembly diagram of another embodiment of the infrared grating assembly of the utility model;

[0031] Figure 6 for Figure 4 and Figure 5 A schematic diagram of the operation of the illustrated embodiment.

[0032] Description of Figure Numbers:

[0033] Label name Label name 100 External cabinet 420 Second mounting plate 200 Lifting cabinet 510 Infrared transmitter 210 Base Plate 520 Infrared Receiver 300 Lift control components 600 Flexible layer 310 Drive motor 610 Protrusion 320 Lifting mechanism 710 First buffer 330 Controller 720 Second buffer 410 First mounting plate

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] Due to their own heavy gravity, lift cabinets often have difficulty in sensitively judging obstacle situations and taking action after encountering obstacles, which poses a risk of damaging items below or even the structure of the lift cabinet itself.

[0039] The utility model provides an infrared anti-collision lifting cabinet, aiming to solve the above problems.

[0040] like Figure 1 and Figure 3 As shown, in one embodiment, the infrared anti-collision lifting cabinet includes:

[0041] An outer cabinet 100, wherein the outer cabinet 100 has a lifting chamber with an opening at the lower end;

[0042] A lifting cabinet 200 is disposed in the lifting chamber, and the lifting cabinet 200 includes a bottom plate 210, and a first mounting plate 410 and a second mounting plate 420 are disposed opposite to each other below the bottom plate 210;

[0043] A lifting control component 300, used to control the lifting of the lifting cabinet 200;

[0044] An infrared grating assembly, comprising an infrared transmitter and an infrared receiver arranged corresponding to the infrared transmitter, wherein the infrared transmitter is arranged on the first mounting plate, and the infrared receiver is arranged on the second mounting plate, and the infrared transmitter transmits a plurality of infrared light beams to the corresponding infrared receiver to form an infrared grating, and the infrared light beams are parallel and located in the same plane;

[0045] The infrared receiver 520 generates a light shielding signal when detecting that the infrared light beam is blocked, and the lifting control component 300 receives the light shielding signal and controls the movement of the lifting cabinet 200 according to the light shielding signal.

[0046] Specifically, the outer cabinet 100 can form a set of cabinets with the lifting cabinet 200, or the outer cabinet 100 can be a part of an integral cabinet such as a wall-mounted cabinet, and the outer cabinet 100 has a lifting chamber with an opening at the lower end for accommodating and lifting the lifting cabinet 200. The outer cabinet 100 can be provided with a transparent front cabinet surface or an opaque front cabinet surface, or an opening and closing cabinet door according to needs.

[0047] The structure of traditional lifting cabinet is as follows Figure 2 As shown, the difference between the present application and the traditional lifting cabinet is that an infrared grating assembly is provided at the bottom of the lifting cabinet. The infrared grating assembly includes an infrared transmitter 510 and an infrared receiver 520. The infrared transmitter 510 transmits a plurality of parallel infrared light beams in the same plane to the receiving assembly corresponding to the infrared receiver 520 to form an infrared grating. In one embodiment, the infrared grating assembly can also select a plurality of infrared transmitters 510 with only one transmitting window and a one-to-one corresponding infrared receiver 520. A first mounting plate 410 and a second mounting plate 420 are provided at the bottom of the lifting cabinet 200 to facilitate the installation of the infrared transmitter 510 and the infrared receiver 520. In order to expand the coverage of the infrared grating, the first mounting plate 410 and the second mounting plate 420 can be arranged at the edge of the bottom plate 210.

[0048] When the lifting cabinet 200 approaches the objects below (such as bottles and kitchen utensils in the kitchen, clothes and shoes in the wardrobe, craft ornaments in the collection cabinet, etc.) while descending, the objects below first hit the infrared grating located at the bottom of the lifting cabinet 200. If the objects below block any infrared beam, the corresponding infrared receiver 520 sends a light shielding signal to the controller 330. The controller 330 controls the lifting cabinet 200 to stop descending or rebound upward by a preset distance through the driving motor 310 to ensure that the bottom plate 210 of the lifting cabinet 200 does not touch the objects below. If the infrared receiver 520 can receive the signals of all infrared beams, it means that the infrared grating has not encountered any obstacles and the lifting cabinet 200 has descended normally to the preset height.

[0049] In this embodiment, an infrared grating assembly is arranged at the bottom of the lifting cabinet 200. When the lifting cabinet 200 encounters an obstacle at the bottom while descending, at least one infrared light beam of the infrared grating is blocked, and the corresponding infrared receiver 520 generates a shading signal and sends it to the controller 330. The controller 330 controls the lifting cabinet 200 to perform obstacle avoidance action to prevent the lifting cabinet 200 from hitting the objects below during the descent, thereby causing damage to the objects below or even the lifting cabinet 200, thereby improving the user experience.

[0050] Based on the above embodiment, in a further embodiment, the lifting control assembly 300 includes:

[0051] A lifting mechanism 320 connected to the lifting cabinet 200;

[0052] A driving motor 310, used to drive the lifting mechanism 320 to move;

[0053] The controller 330 is connected to the driving motor 310 and the infrared grating assembly, and is used to receive the shading signal and control the operation of the driving motor 310 .

[0054] Specifically, Figure 1 As shown, the lifting cabinet 200 can be driven by a screw rod, and the lifting mechanism 320 includes structural parts such as a guide rail, a driving screw rod and a screw rod bracket. The lifting cabinet 200 can also be driven by other motors, which is not limited here. The lifting mechanism 320 is used to link the lifting cabinet 200 to rise, fall or stop under the drive of the driving motor 310.

[0055] The controller 330 is used to control the motor according to the received shading signal, thereby controlling the action of the lifting cabinet 200 . The controller 330 can also control the rising or falling speed of the lifting cabinet 200 .

[0056] Optionally, the lifting cabinet 200 has a accommodating chamber with a front end opening.

[0057] The opening direction of the accommodating chamber is consistent with the front cabinet surface (or cabinet door) of the outer cabinet 100 to accommodate items.

[0058] Optionally, the plurality of infrared transmitters 510 are evenly distributed in the long axis direction of the first mounting plate 410 , and the plurality of infrared receivers 520 are evenly distributed in the long axis direction of the second mounting plate 420 .

[0059] When the infrared grating assembly uses a plurality of infrared transmitters 510 with only one transmission window and a one-to-one corresponding infrared receiver 520, the uniform distribution of the infrared transmitters 510 is conducive to more accurate detection of the shading signal.

[0060] Alternatively, if Figure 4 As shown, in one embodiment, the infrared anti-collision lifting cabinet also includes a flexible layer 600 located at the bottom of the lifting cabinet body 200, the flexible layer 600 is arranged opposite to the bottom plate 210 and forms a cavity with the bottom plate 210, the first mounting plate 410 and the second mounting plate 420, the infrared light beam is located in the cavity, and the flexible layer 600 is deformed when subjected to external force.

[0061] Since there are inevitably gaps between adjacent beams of the infrared grating, if the object under the lifting cabinet 200 is small in size, the infrared grating may not detect the blocking signal. If the beam density of the infrared grating is to be increased, the cost will be greatly increased. If the object under is a transparent object such as glass, the infrared beam emitted by the infrared transmitter 510 may pass through the transparent object and continue to be transmitted to the infrared receiver 520. The above factors have an adverse effect on the design of the lifting cabinet 200 to prevent collision through the bottom infrared grating.

[0062] Therefore, in this embodiment, a flexible layer 600 is provided at the bottom of the lifting cabinet 200. The flexible layer 600 can be bonded to the bottom of the first mounting plate 410 and the second mounting plate 420. The flexible layer 600, the bottom plate 210, the first mounting plate 410 and the second mounting plate 420 form a cavity, and the infrared grating is located in the cavity. When the lifting cabinet 200 descends, the flexible layer 600 will elastically deform when it encounters an obstacle, such as Figure 6 As shown, the flexible layer 600 blocks the infrared beam when a certain deformation occurs, so that the infrared receiver 520 that does not receive the infrared beam generates a blocking signal, and then the controller 330 controls the lifting cabinet 200 to stop descending and / or rebound upward.

[0063] Furthermore, if Figure 5 As shown, in one embodiment, the flexible layer 600 further includes a plurality of protrusions 610, and the protrusions 610 are located on a side of the flexible layer 600 close to the infrared beam, and the highest point of the protrusions 610 is lower than the plane where the infrared beam is located when the flexible layer 600 is not deformed.

[0064] Combination Figure 6 It can be seen that when the flexible layer 600 is not deformed, the protrusion 610 does not block the infrared beam. When the lifting cabinet 200 descends and encounters an obstacle, the flexible layer 600 is deformed to a certain extent so that the protrusion 610 blocks the infrared beam to form a light shielding signal.

[0065] It can be understood that, due to the presence of the protrusion 610, the minimum deformation amount required for the flexible layer 600 to block the infrared light beam is significantly smaller than that in the embodiment without the protrusion 610. Therefore, the lifting cabinet 200 of this embodiment can block the infrared light beam more quickly when encountering an obstacle while descending, and the infrared anti-collision lifting cabinet can react more quickly (stop descending and / or rebound upwards) when encountering an obstacle while descending.

[0066] Optionally, a projection of the protrusion 610 on the plane where the infrared light beam is located intersects with any of the infrared light beams.

[0067] like Figure 5 As shown, in order to ensure that the protrusion 610 can better shield the infrared light beam when the flexible layer 600 is deformed, the projection of the protrusion 610 and the infrared light beam on the plane intersect.

[0068] Optionally, the infrared anti-collision lifting cabinet further includes a first buffer portion 710 disposed between the flexible layer 600 and the first mounting plate 410 , and a second buffer portion 720 disposed between the flexible layer 600 and the second mounting plate 420 .

[0069] like Figure 6 As shown, in actual applications, since the flexible layer 600 is bonded to the first mounting plate 410 and the second mounting plate 420 (the mounting plates are generally made of wood, plastic or metal), debonding and damage may occur after repeated stress deformation. Therefore, in one embodiment, a buffer portion may be provided between the flexible layer 600 and the mounting plate. The buffer portion may be made of foam.

[0070] The flexible layer 600 can be provided with a plurality of protrusions 610 according to actual needs, so as to further enhance the accuracy of judging obstacles encountered when the lifting cabinet is descending. At the same time, the plurality of protrusions 610 can also play a role in strengthening the structure of the flexible layer 600.

[0071] Optionally, the flexible layer 600 is made of opaque material.

[0072] The flexible layer 600 should be made of an opaque material that cannot penetrate the infrared beam to ensure a good shielding effect on the infrared beam. At the same time, the flexible layer 600 should ensure a certain elasticity and strength, and the material can be plastic, rubber, leather, fabric or other materials with suitable elasticity and strength.

[0073] Optionally, a collision sensor is further disposed at the bottom of the first mounting plate 410 and the second mounting plate 420 , and the collision sensor is connected to the controller 330 .

[0074] Since the bottom of the first mounting plate 410 and the second mounting plate 420 is a blind area for infrared grating detection, a collision sensor may be provided at the bottom thereof to further enhance the anti-collision capability of the lifting cabinet 200 during the descending process.

[0075] In summary, the present application sets an infrared grating assembly at the bottom of the lifting cabinet. The infrared grating assembly includes an infrared transmitter for emitting infrared light beams and an infrared receiver for receiving infrared light beams. When the lifting cabinet encounters an obstacle at the bottom when descending, at least one infrared light beam of the infrared grating is blocked, and the corresponding infrared receiver generates a shading signal and sends it to the controller. The controller controls the lifting cabinet to perform obstacle avoidance actions to prevent the lifting cabinet from hitting the objects below during the descent, thereby causing damage to the objects below or even the lifting cabinet. At the same time, in order to further improve the obstacle detection accuracy when the lifting cabinet descends, a flexible layer is set under the infrared grating, and a flexible layer including multiple protrusions can be further set. When the flexible layer is deformed when encountering an obstacle, it blocks the infrared light beam, thereby achieving better obstacle detection and anti-collision functions.

[0076] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structures or equivalent process changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly or indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An infrared anti-collision lifting cabinet, characterized in that: The infrared anti-collision lifting cabinet comprises: An outer cabinet, the outer cabinet having a lifting chamber with an opening at the lower end; A lifting cabinet is arranged in the lifting chamber, the lifting cabinet comprises a bottom plate, and a first mounting plate and a second mounting plate are arranged opposite to each other below the bottom plate; A lifting control component, used to control the lifting of the lifting cabinet; An infrared grating assembly, comprising an infrared transmitter and an infrared receiver arranged corresponding to the infrared transmitter, wherein the infrared transmitter is arranged on the first mounting plate, and the infrared receiver is arranged on the second mounting plate, and the infrared transmitter transmits a plurality of infrared light beams to the corresponding infrared receiver to form an infrared grating, and the infrared light beams are parallel and located in the same plane; The infrared receiver generates a light shielding signal when detecting that the infrared light beam is blocked, and the lifting control component receives the light shielding signal and controls the movement of the lifting cabinet according to the light shielding signal.

2. The infrared anti-collision lifting cabinet according to claim 1, characterized in that: The lifting control assembly comprises: A lifting mechanism connected to the lifting cabinet; A driving motor, used to drive the lifting mechanism to move; The controller is connected to the driving motor and the infrared grating assembly, and is used for receiving the shading signal and controlling the action of the driving motor.

3. The infrared anti-collision lifting cabinet according to claim 1, characterized in that: The lifting cabinet has a accommodating chamber with a front end opening.

4. The infrared anti-collision lifting cabinet according to claim 1, characterized in that: The plurality of infrared transmitters are evenly distributed in the long axis direction of the first mounting plate, and the plurality of infrared receivers are evenly distributed in the long axis direction of the second mounting plate.

5. The infrared anti-collision lifting cabinet according to claim 1, characterized in that: The infrared anti-collision lifting cabinet also includes a flexible layer located at the bottom of the lifting cabinet body. The flexible layer is arranged opposite to the bottom plate and forms a cavity with the bottom plate, the first mounting plate and the second mounting plate. The infrared light beam is located in the cavity, and the flexible layer undergoes elastic deformation when subjected to external force.

6. The infrared anti-collision lifting cabinet according to claim 5, characterized in that: The flexible layer further comprises a plurality of protrusions, wherein the protrusions are located on a side of the flexible layer close to the infrared light beam, and the highest points of the protrusions are lower than the plane where the infrared light beam is located when the flexible layer is not deformed.

7. The infrared anti-collision lifting cabinet according to claim 6, characterized in that: The projection of the protrusion on the plane where the infrared light beam is located intersects with any of the infrared light beams.

8. The infrared anti-collision lifting cabinet according to claim 7, characterized in that: The infrared anti-collision lifting cabinet also includes a first buffer portion arranged between the flexible layer and the first mounting plate, and a second buffer portion arranged between the flexible layer and the second mounting plate.

9. The infrared anti-collision lifting cabinet according to any one of claims 5 to 8, characterized in that: The flexible layer is made of opaque material.

10. The infrared anti-collision lifting cabinet according to claim 2, characterized in that: The bottom of the first mounting plate and the second mounting plate are also provided with collision sensors, and the collision sensors are connected to the controller.

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