Opening and closing door structure and smart litter box
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-14
AI Technical Summary
例如,目前应用的电磁锁和步进电机、减速电机等驱动的方案虽然能实现开关门的锁定,但其需要持续供电来维持锁定状态,导致设备整体能耗显著偏高
[0025]本实用新型的技术方案通过采用阻挡部于所述第一位置时,所述电源接收部能够接收电源,所述驱动部能够驱动所述卡扣,以使所述卡扣从所述扣位中脱离,同时,所述弹性元件发生形变,所述阻挡部能够打开所述第一开口;于所述第二位置时,所述电源接收部断开电源,所述弹性元件恢复形变,以驱动所述卡扣恢复原位,所述卡扣能够扣入所述扣位,所述阻挡部关闭所述第一开口,能够避免向电源接收部持续供电的情景,也就是说,在不用向电源接收部持续供电的情况下,本申请的技术方案也能够实现开关门结构的锁定,进而解决现有技术中存在的技术问题。
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Figure CN224634440U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pet opening equipment technology, and in particular to a door opening and closing structure and a smart cat litter box. Background Technology
[0002] In the field of automatic pet cleaning equipment, especially automatic litter boxes, the existing door opening and closing structures for the waste collection compartments have high energy consumption. For example, while current solutions using electromagnetic locks and stepper motors or geared motors can lock the door, they require a continuous power supply to maintain the locked state, resulting in significantly high overall energy consumption of the equipment. Utility Model Content
[0003] In order to solve the technical problem of high energy consumption in the above-mentioned door opening and closing structure, the purpose of this utility model is to propose a door opening and closing structure and an intelligent cat litter box.
[0004] To achieve the above objectives, the opening and closing door structure proposed in this utility model includes:
[0005] The mounting base is capable of rotating about an axis and has a first opening;
[0006] The blocking part is rotatably mounted on the mounting base and can rotate with the mounting base;
[0007] A locking component includes a latch and a latch, one of which is disposed on the mounting base and the other is disposed on the blocking portion;
[0008] The driving assembly includes an elastic element, a power receiving part and a driving part connected to each other, wherein the elastic element is connected to the buckle;
[0009] The blocking part can be rotated to the first position and the second position along with the mounting base;
[0010] When in the first position, the power receiving part can receive power, the driving part can drive the buckle to disengage the buckle from the latch, and at the same time, the elastic element deforms and the blocking part can open the first opening;
[0011] In the second position, the power receiving part disconnects the power supply, the elastic element restores its deformation to drive the buckle back to its original position, the buckle can engage the buckle position, and the blocking part closes the first opening.
[0012] In one embodiment, the buckle is located on the blocking part, the latch is located on the mounting base, one end of the elastic element is connected to the latch, and the other end abuts against the mounting base.
[0013] In one embodiment, the drive assembly further includes a transmission part, the mounting base is provided with a first cavity, the buckle is slidably disposed in the first cavity, and the drive part can drive the buckle through the transmission part to make the buckle slide in the first cavity and disengage from the latch.
[0014] In one embodiment, the transmission unit includes a swing arm, and the driving unit drives the swing arm to swing, the swing arm causing the buckle to slide in the first cavity and disengage from the buckle.
[0015] In one embodiment, the drive unit includes a shape memory alloy, which is connected to the transmission unit;
[0016] When the blocking part is in the first position, the shape memory alloy deforms due to thermal phase change to drive the transmission plate to swing. The swinging of the transmission part causes the buckle to slide in the first cavity so that the buckle disengages from the buckle position, and at the same time the elastic element deforms.
[0017] When the blocking part is in the second position, the shape memory alloy recovers its deformation, and the elastic element recovers its deformation to drive the buckle to return to its original position.
[0018] In one embodiment, the shape memory alloy is configured as a nickel-titanium shape memory alloy, and the diameter of the shape memory alloy is 0.1 mm to 0.5 mm;
[0019] And / or, the buckle is provided with a first guide slope and the blocking part is provided with a second guide slope. When the blocking part is flipped from the first position to the second position, the first guide slope and the second guide slope abut against each other and push against the buckle so that the buckle slides in the first cavity.
[0020] In one embodiment, the drive unit further includes a connecting wire that is electrically connected to the shape memory alloy and the power receiving unit.
[0021] In one embodiment, the power receiving unit is configured as a coil.
[0022] In one embodiment, the blocking portion has a first side surface and a second side surface, which are arranged along the rotation axis of the blocking portion;
[0023] The locking components are configured in two groups, with the two groups of locking components respectively corresponding to the first side and the second side.
[0024] This utility model also proposes an intelligent cat litter box, including the opening and closing door structure, frame, and box as described above. The box is rotatably mounted on the frame. The mounting base is fixed to the box by a detachable structure and can rotate with the box. The box has a second opening opposite to the first opening. The box forms a second cavity, which is connected to the second opening.
[0025] The technical solution of this utility model employs a blocking part. When the blocking part is in the first position, the power receiving part can receive power, and the driving part can drive the buckle to disengage from the latch. At the same time, the elastic element deforms, and the blocking part can open the first opening. When in the second position, the power receiving part disconnects the power, the elastic element recovers its deformation, and drives the buckle back to its original position. The buckle can then latch into the latch, and the blocking part closes the first opening. This avoids the scenario of continuously supplying power to the power receiving part. In other words, even without continuously supplying power to the power receiving part, the technical solution of this application can still achieve the locking of the door opening and closing structure, thereby solving the technical problems existing in the prior art. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0027] Figure 1 A schematic diagram of an embodiment of the door opening and closing structure provided by this utility model;
[0028] Figure 2 for Figure 1 Another structural diagram of the door opening and closing mechanism, in which the blocking part closes the first opening;
[0029] Figure 3 for Figure 2 Enlarged view of a specific area;
[0030] Figure 4 for Figure 2 Another schematic diagram of the switch structure, in which the blocking part opens the first opening;
[0031] Figure 5 for Figure 1 A cross-sectional view of the opening and closing door structure at one location;
[0032] Figure 6 for Figure 5Enlarged view of point A in the middle.
[0033] Figure 7 This is a structural schematic diagram of an embodiment of a smart litter box;
[0034] Figure 8 for Figure 7 Another structural diagram of a smart litter box.
[0035] Explanation of icon numbers:
[0036] 100. Mounting base; 110. First opening; 120. First cavity;
[0037] 200, blocking part; 210, first side surface; 220, second side surface; 230, second guide slope;
[0038] 300. Locking component; 310. Snap-on; 320. Snap-on position; 330. First guide slope;
[0039] 400. Drive assembly; 410. Elastic element; 420. Power receiver; 430. Drive unit; 431. Shape memory alloy; 432. Connecting wire; 440. Transmission unit;
[0040] 500. Smart litter box;
[0041] 600. Frame;
[0042] 700, Box body; 710, Second opening.
[0043] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0045] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0046] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0047] This utility model proposes a door opening and closing structure for use in a smart cat litter box, see reference. Figure 7 , Figure 8 The smart litter box can be a litter box or other pet-related enclosure structure.
[0048] Please see Figures 1 to 6 In one embodiment of this utility model, the door opening and closing structure includes: a mounting base 100, a blocking part 200, a locking component 300, and a driving component 400; wherein, the mounting base 100 is rotatable about an axis and has a first opening 110; it should be noted that the mounting base 100 is installed in the smart litter box 500. In some embodiments, the smart litter box 500 includes a frame 600 and a box 700, wherein the box 700 is rotatably mounted on the frame 600, and the mounting base 100 is fixed in the box 700 by a detachable structure. When the box 700 rotates, the mounting base 100 can rotate around the box 700. By flipping the axis, the housing 700 further constructs a second cavity. When the smart litter box 500 is in use, the pet enters the second cavity. Specifically, the housing 700 has a second opening 710, which corresponds to the first opening 110. It should be noted that the correspondence between the first opening 110 and the second opening 710 described in this application means that the first opening 110 and the second opening 710 partially overlap, and does not mean that the first opening 110 and the second opening 710 completely overlap. Of course, in some embodiments, the first opening 110 and the second opening 710 can also completely overlap.
[0049] Furthermore, the blocking part 200 is rotatably mounted on the mounting base 100 and can rotate with the mounting base 100; furthermore, in some embodiments, the blocking part 200 is rotatably mounted on the mounting base 100 via a pin, and in some embodiments, it can also be rotatably mounted on the mounting base 100 via other shaft structures. It is understood that when the mounting base 100 rotates with the housing 700, the blocking part 200 can also rotate with it.
[0050] Furthermore, the locking component 300 includes a latch 310 and a latching position 320. One of the latch 310 and the latching position 320 is located on the mounting base 100, and the other is located on the blocking portion 200. It can be understood that when the latch 310 is located on the mounting base 100, the latching position 320 is located on the blocking portion 200, and when the latch 310 is located on the blocking portion 200, the latching position 320 is located on the mounting base 100.
[0051] Furthermore, the drive assembly 400 includes an elastic element 410, a power receiving part 420 connected thereto, and a drive part 430. The elastic element 410 is connected to the buckle 310. The elastic element 410 can be a spring or a tension spring, etc. In this application, a spring is used as an example for description.
[0052] The blocking part 200 can be flipped to the first position and the second position along with the mounting base 100. It should be noted that when the opening and closing door structure is applied to the litter box, the first position is the litter box defecation position and the second position is the position of the litter box in normal use.
[0053] It should be further explained that when the blocking part 200 rotates to the first position along with the mounting base 100, the power receiving part 420 can receive power, and the driving part 430 can drive the buckle 310 so that the buckle 310 disengages from the buckle 320. At the same time, the elastic element 410 deforms, and the blocking part 200 can open the first opening 110. Under the action of its own weight and the weight of the object being discharged, the blocking part 200 can rotate around the rotating mounting point of itself and the mounting base 100 to open the first opening 110.
[0054] When the blocking part 200 rotates to the second position along with the mounting base 100, the power receiving part 420 disconnects the power, the elastic element 410 restores its deformation to drive the buckle 310 back to its original position, the buckle 310 can be engaged with the buckle 320, and the blocking part 200 closes the first opening 110. When the blocking part 200 is in the second position, the blocking part 200 can close the first opening 110 under its own gravity.
[0055] Furthermore, the power receiving unit 420 can be a coil structure. In this case, the bracket is provided with another coil structure corresponding to the power receiving unit 420. When the blocking part 200 flips to the first position along with the mounting base 100, the two coil structures correspond to each other. The coil in the door opening and closing structure and the bracket coil generate a voltage through electromagnetic induction. At this time, the power receiving unit 420 generates a current. Since the power receiving unit 420 is driven by the driving unit 430, the driving unit 430 can drive the latch 310. Furthermore, the driving unit 430 can be configured as an electromagnet, and the latch 310 can be configured as containing... Made of iron alloy, when the electromagnet is energized, it has a magnetic attraction function, attracting the buckle 310 so that the buckle 310 moves toward the electromagnet and disengages from the latch 320. When the buckle 310 disengages from the latch 320, the elastic element 410 deforms. Since the buckle 310 disengages from the latch 320, the blocking part 200 is no longer constrained by the buckle 310 and can rotate around its own axis of rotation with the mounting base 100, thereby opening the first opening 110 and the second opening 710, allowing the object in the box 700 to be discharged outward from the second opening 710 and the first opening 110.
[0056] When the blocking part 200 is in the second position, the two coil structures do not correspond, and the power receiving part 420 cannot receive power. At this time, the electromagnet is de-energized and demagnetized, and the elastic element 410 restores its deformation to drive the latch 310 back to its original position. It should be noted that when the blocking part 200 is in the second position, the blocking part 200 can close the first opening 110 under the action of gravity. At this time, the latch 310 can be engaged in the latching position 320. Furthermore, in order to enable the latch 310 to be engaged in the latching position 320, a capacitor or supercapacitor is also provided between the power receiving part 420 and the driving part 430. After the power is turned off by the source receiving unit 420, the energy in the capacitor or supercapacitor enables the driving unit 430 to continue working and attract the latch 310. After the blocking part 200 is in the second position for a certain period of time, the energy in the capacitor or supercapacitor is consumed and the driving unit 430 is turned off. Since the blocking part 200 has been in the second position for a certain period of time, the blocking part 200 can close the first opening 110, and the latch 310 corresponds to the latch position 320. At this time, the driving unit 430 is turned off, and the elastic element 410 drives the latch 310, so that the latch 310 can be accurately latched into the latch position 320.
[0057] It should be noted that in this embodiment, when the blocking part 200 is in the first position, the power receiving part 420 can receive power, and the driving part 430 can drive the latch 310 to disengage from the latch position 320. At the same time, the elastic element 410 deforms, and the blocking part 200 can open the first opening 110. In the second position, the power receiving part 420 disconnects the power, the elastic element 410 recovers its deformation, and drives the latch 310 to return to its original position. The latch 310 can then engage with the latch position 320, and the blocking part 200 closes the first opening 110. This avoids the scenario of continuously supplying power to the power receiving part 420. In other words, even without continuously supplying power to the power receiving part 420, the technical solution of this application can still achieve the locking of the door opening and closing structure, thereby solving the technical problems existing in the prior art.
[0058] In one embodiment, reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The buckle 320 is located on the blocking part 200, the buckle 310 is located on the mounting base 100, one end of the elastic element 410 is connected to the buckle 310, and the other end abuts against the mounting base 100. The elastic element 410 is configured as a spring. The buckle 310 is provided with a first abutting part that abuts against the spring, and the mounting base 100 is provided with a second abutting part that abuts against the spring. When the driving part 430 drives the buckle 310 to disengage from the buckle 320, the first abutting part and the second abutting part can compress the spring to deform it.
[0059] In one embodiment, reference Figure 3 , Figure 6 The drive assembly 400 further includes a transmission part 440. The mounting base 100 has a first cavity 120. The buckle 310 is slidably disposed in the first cavity 120. The drive part 430 can drive the buckle 310 through the transmission part 440, so that the buckle 310 slides in the first cavity 120 and disengages from the latch 320. In some embodiments, the buckle 310 may be made of a non-alloy material, in which case the transmission part 440 may be made of an iron alloy material.
[0060] In one embodiment, reference Figure 3The transmission unit 440 includes a swing arm, and the driving unit 430 drives the swing arm to swing. The swing arm causes the latch 310 to slide in the first cavity 120 and disengage from the latch 320. In some embodiments, when the driving unit 430 is configured as an electromagnet, the swing arm is rotatably mounted on the mounting base 100, wherein the middle position of the swing arm is rotatably mounted on the mounting base 100, one end of the swing arm is configured as an iron alloy, and the other end is hinged to the latch 310. At this time, the driving unit 430 corresponds to the iron alloy end of the swing arm. When the electromagnet attracts the swing arm, the swing arm swings, thereby causing the latch 310 to slide in the first cavity 120 and disengage from the latch 320. At this time, the spring is compressed.
[0061] In one embodiment, reference Figure 3 The driving part 430 includes a shape memory alloy 431, which is connected to the transmission part 440. When the blocking part 200 is in the first position, the shape memory alloy 431 deforms due to thermal phase change, thereby driving the transmission plate to swing. The transmission part 440 swings to drive the buckle 310 to slide in the first cavity 120, so that the buckle 310 disengages from the buckle position 320. At the same time, the elastic element 410 deforms. When the blocking part 200 is in the first position, the shape memory alloy 431 recovers its deformation, and the elastic element 410 recovers its deformation, thereby driving the buckle 310 to return to its original position. It is understandable that when the blocking part 200 is in the first position, the shape memory alloy 431 deforms due to a phase change caused by heat. It should be noted that the shape memory alloy 431 contracts and deforms. After the shape memory alloy 431 contracts and deforms, it can pull the latch 310, causing the latch 310 to slide in the first cavity 120 and disengage from the latch 320. It should be noted that when the locking components 300 are configured as a set, one end of the shape memory alloy 431 is fixedly set, and the other end is connected to the latch 310. It should be noted that the shape memory alloy 431 is connected to the circuit. In some embodiments, the shape memory alloy 431 is heated by an electric current or by heat generated by other devices, such as a heating wire electrically connected to the power receiving part 420. The shape memory alloy 431 is disposed outside the heating wire. When the heating wire is energized, it generates heat, causing the shape memory alloy 431 to deform due to a phase change caused by heat. The understanding of deformation due to thermal phase change should be interpreted as deformation occurring after the temperature reaches the phase change temperature.
[0062] Furthermore, in some embodiments, when the transmission part 440 is configured as a rocker arm, the shape memory alloy 431 is connected to one end of the rocker arm, and the shape memory alloy 431 can drive the rocker arm to swing when it deforms.
[0063] However, this design is not limited to this. In some embodiments, the transmission part 440 can also be configured as a rotating wheel (not shown), with a shape memory alloy 431 connected to the rotation. The rotating wheel is connected to the buckle 310 through a traction line or other structure. The shape memory alloy 431 deforms, driving the rotating wheel to rotate. The rotation pulls the buckle 310 through the traction line, so that the buckle 310 slides along the first cavity 120 and disengages from the buckle position 320.
[0064] In one embodiment, the shape memory alloy 431 is configured as a nickel-titanium shape memory alloy 431, and the diameter of the shape memory alloy 431 is 0.1 mm to 0.5 mm. Further, in some embodiments, the shape memory alloy 431 has a diameter of 0.2 mm, a phase transformation temperature range of 90℃ to 110℃, and an axial shrinkage deformation rate of 3% to 4%; the actual unlocking stroke of the nickel-titanium shape memory alloy wire driving the latch 310 is ≥4 mm.
[0065] In one embodiment, reference Figure 6 The latch 310 is provided with a first guide slope 330, and the blocking part 200 is provided with a second guide slope 230. When the blocking part 200 is flipped from the first position to the second position, the first guide slope and the second guide slope abut against each other and push against the latch 310, so that the latch 310 slides in the first cavity 120. In this embodiment, the door opening and closing structure may not be provided with a capacitor or supercapacitor. At this time, when the blocking part 200 is in the second position, the blocking part 200 can close the first opening 110 under the action of gravity. At the same time, the second guide slope on the blocking part 200 can abut against the first guide slope of the latch 310 and push against the latch 310 under the action of gravity, so that the latch 310 slides in the first cavity 120. At this time, the spring is compressed. When the latch 310 corresponds to the latch position 320, the elastic element 410 inserts the latch 310 into the latch position 320 under the action of elastic force.
[0066] In one embodiment, the driving unit 430 further includes a connecting line 432, which is electrically connected to the shape memory alloy 431 and the power receiving unit 420. At this time, the shape memory alloy 431 is connected to the circuit so that current passes through the shape memory alloy 431, causing the shape memory alloy 431 to deform due to heat.
[0067] In one embodiment, reference Figure 2The blocking part 200 is provided with a first side surface 210 and a second side surface 220, which are arranged along the rotation axis of the blocking part 200. The locking assembly 300 is provided in two sets, which are respectively provided corresponding to the first side surface 210 and the second side surface 220. In some embodiments, when the driving part 430 further includes a connecting line 432 and the transmission part 440 is configured as a rocker arm, and the driving part 430 includes a shape memory alloy 431, the two ends of the shape memory alloy 431 are respectively connected to the ends of the two rocker arms. When the shape memory alloy 431 is heated and shrinks, the two rocker arms can swing simultaneously to drive the two buckles 310 to disengage from the buckle 320.
[0068] This utility model also proposes an intelligent cat litter box 500, see reference. Figure 7 , Figure 8 The intelligent litter box 500 includes a door opening structure, a frame 600, and a housing 700. The specific structure of the door opening structure is as described in the above embodiments. Since the intelligent litter box 500 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The housing 700 is rotatably mounted on the frame 600. The mounting base 100 is fixed to the housing 700 by a detachable structure and can rotate with the housing 700. The housing 700 has a second opening 710, which is opposite to the first opening 110. The housing 700 forms a second cavity, which is connected to the second opening 710. It should be noted that the correspondence between the first opening 110 and the second opening 710 described in this application means that the first opening 110 and the second opening 710 partially overlap, and does not mean that the first opening 110 and the second opening 710 completely overlap. Of course, in some embodiments, the first opening 110 and the second opening 710 may also completely overlap.
[0069] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.
Claims
1. A door opening structure characterized by comprising: include: The mounting base is capable of rotating about an axis and has a first opening; The blocking part is rotatably mounted on the mounting base and can rotate with the mounting base; A locking component includes a latch and a latch, one of which is disposed on the mounting base and the other is disposed on the blocking portion; The driving assembly includes an elastic element, a power receiving part and a driving part connected to each other, wherein the elastic element is connected to the buckle; The blocking part can be rotated to the first position and the second position along with the mounting base; When in the first position, the power receiving part can receive power, the driving part can drive the buckle to disengage the buckle from the latch, and at the same time, the elastic element deforms and the blocking part can open the first opening; In the second position, the power receiving part disconnects the power supply, the elastic element restores its deformation to drive the buckle back to its original position, the buckle can engage the buckle position, and the blocking part closes the first opening.
2. The door opening structure according to claim 1, wherein The buckle is located on the blocking part, the latch is located on the mounting base, one end of the elastic element is connected to the latch, and the other end abuts against the mounting base.
3. The door opening structure according to claim 2, wherein The drive assembly further includes a transmission part, the mounting base is provided with a first cavity, the buckle is slidably disposed in the first cavity, and the drive part can drive the buckle through the transmission part so that the buckle slides in the first cavity and disengages from the buckle position.
4. The door opening structure according to claim 3, wherein The transmission part includes a swing arm, and the driving part drives the swing arm to swing. The swing arm causes the buckle to slide in the first cavity and disengage from the buckle.
5. The door opening structure according to claim 3, wherein The drive unit includes a shape memory alloy, which is connected to the transmission unit; When the blocking part is in the first position, the shape memory alloy deforms due to thermal phase change to drive the transmission part to swing. The swing of the transmission part drives the buckle to slide in the first cavity so that the buckle disengages from the buckle position, and at the same time the elastic element deforms. When the blocking part is in the second position, the shape memory alloy recovers its deformation, and the elastic element recovers its deformation to drive the buckle to return to its original position.
6. The door opening and closing structure as described in claim 5, characterized in that, The shape memory alloy is configured as a nickel-titanium shape memory alloy, and the diameter of the shape memory alloy is 0.1mm-0.5mm; And / or, the buckle is provided with a first guide slope and the blocking part is provided with a second guide slope. When the blocking part is flipped from the first position to the second position, the first guide slope and the second guide slope abut against each other and push against the buckle so that the buckle slides in the first cavity.
7. The door opening structure according to claim 5, wherein The drive unit also includes a connecting wire, which is electrically connected to the shape memory alloy and the power receiving unit.
8. The door opening structure according to claim 1, wherein The power receiving unit is configured as a coil.
9. The door opening structure according to any one of claims 1 to 8, wherein The blocking part is provided with a first side and a second side, and the first side and the second side are arranged along the rotation axis of the blocking part. The locking components are configured in two groups, with the two groups of locking components respectively corresponding to the first side and the second side.
10. An intelligent cat litter box, characterized by, The device includes a door opening and closing structure, a frame, and a housing as described in any one of claims 1 to 9, wherein the housing is rotatably mounted on the frame, the mounting base is fixed to the housing by a detachable structure and can rotate with the housing, the housing has a second opening opposite to the first opening, the housing forms a second cavity, and the second cavity is connected to the second opening.