CN210538091U - Remote pet feeding device - Google Patents
Remote pet feeding device Download PDFInfo
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- CN210538091U CN210538091U CN201921098642.4U CN201921098642U CN210538091U CN 210538091 U CN210538091 U CN 210538091U CN 201921098642 U CN201921098642 U CN 201921098642U CN 210538091 U CN210538091 U CN 210538091U
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- contactor
- time relay
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- open contact
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- 230000002070 germicidal effect Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 8
- 241000894006 Bacteria Species 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a remote pet feeding device, which comprises a box body, wherein the outer surface of the box body is provided with a control box, a wireless signal receiver, an MCU and a control circuit are arranged in the control box, the wireless signal receiver is connected with the MCU, and the MCU is connected with the control circuit; a first electric push rod is arranged on the right side face of the box body in the vertical direction, a baffle is arranged at the telescopic bottom of the first electric push rod, and an LED lamp and a buzzer are arranged on the outer surface of the baffle; the bottom is provided with second electric putter along the horizontal direction in the box, and second electric putter's stiff end is fixed on the box inner wall, and second electric putter's flexible end is provided with feeds the hamper, and the length of feeding the hamper is less than second electric putter's flexible length, feeds the height that highly is less than the baffle of hamper. The utility model discloses a remote control's mode realizes feeding of pet in the nobody, and simple structure, convenient operation, practicality are strong.
Description
Technical Field
The utility model belongs to the pet feeds and eats the device, concretely relates to long-range pet feeds and eats device.
Background
Animals such as cats and dogs are faithful partners for humans and are enjoyed by people as pets. Pets need to be fed by people at regular time, however, most people need to go to work or study in the daytime, and the pets are difficult to feed at regular time in the daytime; in addition, sometimes, when people travel or go on a business trip for a long time, no one can feed the pet, and the pet needs to be kept at a pet house or a friend house, which causes certain inconvenience.
Due to the fact that the pace of life is accelerated, people often have time to feed a little more food to the pet, and the pet is likely to be in a hungry state all the time if the time is short, so that the pet cannot eat reasonably, and the health of the pet is damaged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem that above-mentioned exists with not enough, provide a long-range pet and feed and eat device, through remote operation, realize eating, convenient operation, convenient and fast practicality feeding to the pet.
In order to realize the purpose, the utility model discloses a technical scheme is: a remote pet feeding device comprises a box body, wherein a control box is arranged on the outer surface of the box body, a wireless signal receiver, an MCU and a control circuit are arranged in the control box, the wireless signal receiver is connected with the MCU, and the MCU is connected with the control circuit; a first electric push rod is arranged on the right side face of the box body in the vertical direction, a baffle is arranged at the telescopic bottom of the first electric push rod, and an LED lamp and a buzzer are arranged on the outer surface of the baffle; a feeding opening is formed in the bottom of the right side face of the box body; an ultraviolet germicidal lamp is arranged in the box body, a second electric push rod is arranged at the position, corresponding to the feeding opening, of the bottom in the box body in the horizontal direction, the fixed end of the second electric push rod is fixed on the inner wall of the box body, a feeding box is arranged at the telescopic end of the second electric push rod, the length of the feeding box is smaller than the telescopic length of the second electric push rod, and the height of the feeding box is smaller than that of the baffle;
the control circuit comprises a first motor for controlling the movement of the first electric push rod and a second motor for controlling the movement of the second electric push rod, thermal relays FR1 and FR2, contactors KM1, KM2, KM3, KM4 and KM5, fuses FU1, FU2 and FU3, an emergency stop switch SB1, time relays KT1, KT2, KT3, KT4 and KT 5;
the three-phase input end of the first motor is connected with a thermal relay FR1, a normally open contact of a contactor KM2 and a fuse FU1 in series and then connected to U, V and a W wire of three-phase alternating current, the normally open contact of the contactor KM1 is connected with the normally open contact of a contactor KM2 in parallel, the contactor KM2 is used for controlling forward rotation of the first motor, and the contactor KM1 is used for controlling reverse rotation of the first motor; the three-phase input end of the second motor is connected with a thermal relay FR2, a normally open contact of a contactor KM4 and a fuse FU2 in series and then connected to U, V and a W wire of three-phase alternating current, the normally open contact of the contactor KM3 is connected with the normally open contact of a contactor KM4 in parallel, the contactor KM4 is used for controlling the forward rotation of the second motor, and the contactor KM3 is used for controlling the reverse rotation of the second motor;
the U line and the V line of the three-phase alternating current are connected with a fuse FU3 in series, the U line of the three-phase alternating current is also connected with a normally closed contact of a thermal relay FR1, a normally closed contact of a thermal relay FR2 and one end of an emergency stop switch SB1 in series, and 4 branches are connected between the other end of the emergency stop switch SB1 and the V line of the three-phase alternating current in parallel and are respectively a first branch, a second branch, a third branch and a fourth branch;
the first branch circuit comprises a relay J1, a time relay KT1, a contactor KM1, an LED lamp and a buzzer, the MCU is connected with the control end of the relay J1, the normally closed contact of the relay J1 and the time relay KT1, the coil of the time relay KT1, the coil of the contactor KM1, the LED lamp and the buzzer are connected in series, and the normally open contact of the contactor KM1 is connected with the two ends of the relay J1 in parallel; the first branch circuit further comprises a time relay KT4, a contactor KM2, a time relay KT5, a contactor KM3 and a contactor KM4, one end of a normally open contact of the time relay KT4 is connected with the connecting end of the emergency stop switch SB1 and the relay J1, the other end of the normally open contact of the time relay KT4 is connected with a coil of the contactor KM2, a normally closed contact of the time relay KT5 and one end of a coil of the time relay KT5 in series, and the other end of the coil of the time relay KT5 is connected with the connecting end of a coil of; one end of a normally open contact of the contactor KM4 is connected with the connecting end of the emergency stop switch SB1 and the relay J1, the other end of the normally open contact of the contactor KM4 is connected with the connecting end of the coil of the contactor KM1 and the LED lamp, and the normally open contact of the contactor KM3 is connected with the two ends of the normally open contact of the contactor KM4 in parallel;
the second branch comprises a time relay KT1, a contactor KM3 and a time relay KT2, a normally open contact of the time relay KT1, a coil of the contactor KM3, a normally closed contact of the time relay KT2 and a coil of the time relay KT2 are connected in series, and the normally open contact of the contactor KM3 is connected to two ends of the normally open contact of the time relay KT1 in parallel;
the third branch comprises a contactor KM3, an ultraviolet germicidal lamp, a time relay KT3 and a contactor KM5, a normally open contact of the contactor KM3, the ultraviolet germicidal lamp, a normally closed contact of the time relay KT3, a coil of the time relay KT3 and a coil of the contactor KM5 are connected in series, and the normally open contact of the contactor KM5 is connected to two ends of the normally open contact of the contactor KM3 in parallel; the timing time of the time relay KT3 is greater than the timing time of the time relay KT 2;
the fourth branch comprises a time relay KT3, a time relay KT4 and a contactor KM4, a normally open contact of the time relay KT3, a coil of the time relay KT4, a normally closed contact of the time relay KT4 and a coil of a contactor KM4 are connected in series, and the normally open contact of the contactor KM4 is connected with two ends of the normally open contact of the time relay KT3 in parallel.
Further perfecting above-mentioned technical scheme, the bottom of feeding box is provided with the fixed pulley, and box inner chamber bottom is provided with the spout that the fixed pulley matches. Through the sliding connection of feeding box and box, reduced the frictional force between the two, the horizontal motion of the second electric putter of being convenient for more drives feeding box.
Further, the height of the bottom of the inner cavity of the feeding box is gradually reduced from left to right. The inside of the feeding box adopts the inclined design, so that the food can roll outwards, and the condition that the food is remained inside the feeding box for a long time to breed bacteria is avoided.
Furthermore, a plurality of uniformly distributed air holes with filter screens are formed in the front surface and the rear surface of the box body. The air holes are arranged to keep good ventilation in the box body and avoid the deterioration of the food.
The utility model has the advantages that: the utility model drives the baffle to rise through the first electric push rod, and simultaneously the LED lamp and the buzzer work to drive pets; then the second electric push rod is used for stretching to push the feeding box out to feed the pet; after the feeding is finished, the LED lamp and the buzzer are switched on again to drive the pet, and the feeding box is retracted into the box body through the contraction motion of the second electric push rod; finally, the baffle is pushed to descend by the first electric push rod, the feeding opening is blocked, and feeding is finished; the device is simple in overall structure, convenient to operate and high in practicability.
Drawings
FIG. 1 is an external structural view of the present invention;
fig. 2 is a block diagram of the wireless signal receiving circuit of the present invention;
fig. 3 is a control circuit of the present invention;
wherein, 1, a box body; 2. a control box; 3. air holes are formed; 4. a first electric push rod; 5. a baffle plate; 6. a buzzer; 7. an LED lamp; 8. a feed opening; 9. a second electric push rod; 10. feeding boxes; 11. an ultraviolet germicidal lamp; 12. a first motor; 13. a second motor; 14. a first branch; 15. a second branch circuit; 16. a third branch; 17. and a fourth branch.
Detailed Description
In order to make the disclosure of the present invention clearer, the following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings. It should be noted that for the sake of clarity, the figures and the description omit representation and description of parts not relevant to the present invention, known to a person skilled in the art.
Example 1:
the utility model provides a remote pet feeding device, as shown in figures 1 and 2, which comprises a box body 1, wherein the outer surface of the box body 1 is provided with a control box 2, a wireless signal receiver, an MCU and a control circuit are arranged in the control box 2, the wireless signal receiver is connected with the MCU, and the MCU is connected with the control circuit; a first electric push rod 4 is arranged on the right side surface of the box body 1 along the vertical direction, a baffle plate 5 is arranged at the telescopic bottom of the first electric push rod 4, and an LED lamp 7 and a buzzer 6 are arranged on the outer surface of the baffle plate 5; the bottom of the right side surface of the box body 1 is provided with a feeding opening 8; an ultraviolet germicidal lamp 11 is arranged in the box body 1, a second electric push rod 9 is arranged at the position, corresponding to the feeding opening 8, of the bottom in the box body 1 along the horizontal direction, the fixed end of the second electric push rod 9 is fixed on the inner wall of the box body 1, a feeding box 10 is arranged at the telescopic end of the second electric push rod 9, the length of the feeding box 10 is smaller than the telescopic length of the second electric push rod 9, and the height of the feeding box 10 is smaller than that of the baffle 5;
as shown in fig. 3, the control circuit includes a first motor 12 controlling the movement of the first electric putter 4 and a second motor 13 controlling the movement of the second electric putter 9, thermal relays FR1 and FR2, contactors KM1, KM2, KM3, KM4 and KM5, fuses FU1, FU2 and FU3, an emergency stop switch SB1, time relays KT1, KT2, KT3, KT4 and KT 5;
the three-phase input end of the first motor 12 is connected with a thermal relay FR1, a normally open contact of a contactor KM2 and a fuse FU1 in series and then connected to U, V and W wires of three-phase alternating current, the normally open contact of the contactor KM1 is connected with the normally open contact of a contactor KM2 in parallel, the contactor KM2 is used for controlling forward rotation of the first motor 12, and the contactor KM1 is used for controlling reverse rotation of the first motor 12; the three-phase input end of the second motor 13 is connected with a thermal relay FR2, a normally open contact of a contactor KM4 and a fuse FU2 in series and then connected to U, V and W wires of three-phase alternating current, the normally open contact of the contactor KM3 is connected with the normally open contact of a contactor KM4 in parallel, the contactor KM4 is used for controlling the forward rotation of the second motor 13, and the contactor KM3 is used for controlling the reverse rotation of the second motor 13;
the U line and the V line of the three-phase alternating current are connected with a fuse FU3 in series, the U line of the three-phase alternating current is also connected with a normally closed contact of a thermal relay FR1, a normally closed contact of a thermal relay FR2 and one end of an emergency stop switch SB1 in series, and 4 branches are connected between the other end of the emergency stop switch SB1 and the V line of the three-phase alternating current in parallel and are respectively a first branch 14, a second branch 15, a third branch 16 and a fourth branch 17;
the first branch 14 comprises a relay J1, a time relay KT1, a contactor KM1, an LED lamp 7 and a buzzer 6, the MCU is connected with the control end of the relay J1, the normally closed contacts of the relay J1 and the time relay KT1, the coil of the time relay KT1, the coil of the contactor KM1, the LED lamp 7 and the buzzer 6 are connected in series, and the normally open contact of the contactor KM1 is connected with the two ends of the relay J1 in parallel; the first branch 14 further comprises a time relay KT4, a contactor KM2, a time relay KT5, a contactor KM3 and a contactor KM4, one end of a normally open contact of the time relay KT4 is connected with the connecting end of the emergency stop switch SB1 and the relay J1, the other end of the normally open contact of the time relay KT4 is connected with a coil of the contactor KM2, a normally closed contact of the time relay KT5 and one end of a coil of the time relay KT5 in series, and the other end of the coil of the time relay KT5 is connected with the connecting end of a coil of the contactor; one end of a normally open contact of the contactor KM4 is connected with the connecting end of the emergency stop switch SB1 and the relay J1, the other end of the normally open contact of the contactor KM4 is connected with the connecting end of the coil of the contactor KM1 and the LED lamp 7, and the normally open contact of the contactor KM3 is connected to the two ends of the normally open contact of the contactor KM4 in parallel;
the second branch 15 comprises a time relay KT1, a contactor KM3 and a time relay KT2, a normally open contact of the time relay KT1, a coil of the contactor KM3, a normally closed contact of the time relay KT2 and a coil of the time relay KT2 are connected in series, and the normally open contact of the contactor KM3 is connected to two ends of the normally open contact of the time relay KT1 in parallel;
the third branch 16 comprises a contactor KM3, an ultraviolet germicidal lamp 11, a time relay KT3 and a contactor KM5, wherein a normally open contact of the contactor KM3, a normally closed contact of the ultraviolet germicidal lamp 11 and the time relay KT3, a coil of the time relay KT3 and a coil of the contactor KM5 are connected in series, and the normally open contact of the contactor KM5 is connected with two ends of the normally open contact of the contactor KM3 in parallel;
the fourth branch 17 comprises a time relay KT3, a time relay KT4 and a contactor KM4, wherein a normally open contact of the time relay KT3, a coil of the time relay KT4, a normally closed contact of the time relay KT4 and a coil of a contactor KM4 are connected in series, and the normally open contact of the contactor KM4 is connected with two ends of the normally open contact of the time relay KT3 in parallel.
The wireless signal receiver adopts a GSM signal receiver, and sends an instruction signal to the GSM signal receiver through a mobile phone to realize the remote transmission of the signal.
The bottom of the feeding box 10 is provided with a fixed pulley, the bottom of the inner cavity of the box body 1 is provided with a sliding groove matched with the fixed pulley, and the second electric push rod 9 is convenient to drive the feeding box 10 to move horizontally. The height of the bottom of the inner cavity of the feeding box 10 is gradually reduced from left to right, so that the food can roll outwards, and the phenomenon that the food is remained inside the feeding box 10 for a long time to breed bacteria is avoided. The front surface and the back surface of the box body 1 are provided with a plurality of uniformly distributed air holes 3 with filter screens so as to keep good ventilation in the box body 1 and avoid the deterioration of food grains.
The utility model discloses a theory of operation: sending a feeding signal to a wireless signal receiver through the mobile terminal, transmitting the received signal to the MCU for processing by the wireless signal receiver, and controlling the conduction of the relay J1 by the MCU; after the relay J1 is conducted, the coil of the contactor KM1 in the first branch 14 is electrified, the normally open contact of the contactor KM1 is closed, so that the first motor 12 rotates reversely, the telescopic rod rises, and the baffle 5 is driven to rise; meanwhile, the LED lamp 7 and the buzzer 6 of the first branch 14 are started to drive the pet;
when the time relay KT1 of the first branch 14 reaches the timing time, the normally closed contact of the time relay KT1 of the first branch 14 is opened, so that the first motor 12 is stopped; meanwhile, a normally open contact of a second branch 15 time relay KT1 is closed, a coil of a second branch 15 contactor KM3 is electrified, and a normally open contact of a contactor KM3 is closed, so that a second motor 13 is reversely rotated, a telescopic rod extends, and the feeding box 10 is pushed out of the feeding opening 8; the LED lamp 7 is communicated with the buzzer 6 to drive pets; meanwhile, the third branch 16 works, and the ultraviolet germicidal lamp 11 is conducted to work;
when the time relay KT2 times out, the second motor 13 is stopped and the LED lamp 7 and the buzzer 6 are turned off; when the time of the time relay KT3 is timed out, the fourth branch 17 works, the coil of the contactor KM4 of the fourth branch 17 is electrified, the second motor 13 rotates forwards, the telescopic rod is contracted, the LED lamp 7 and the buzzer 6 work to drive pets, and the feeding box 10 returns to the box body 1; wherein, the timing time of the time relay KT3 is longer than the timing time of the time relay KT2, and the difference between the timing time of the time relay KT3 and the timing time of the time relay KT2 is the feeding time of the pet;
when the time of the time relay KT4 is timed out, the coil of the contactor KM2 of the first branch 14 is electrified, the first motor 12 rotates forwards, the telescopic rod descends, and the baffle 5 moves downwards to block the feeding opening 8; meanwhile, the LED lamp 7 and the buzzer 6 are turned on to drive the pet; when the time of the time relay KT5 is up, the whole machine is stopped, and one-time feeding is finished.
The above description is only intended to illustrate embodiments of the present invention, and the description is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. A remote pet feeding device, characterized in that: the wireless signal receiver is connected with the MCU, and the MCU is connected with the control circuit; a first electric push rod is arranged on the right side face of the box body in the vertical direction, a baffle is arranged at the telescopic bottom of the first electric push rod, and an LED lamp and a buzzer are arranged on the outer surface of the baffle; a feeding opening is formed in the bottom of the right side face of the box body; an ultraviolet germicidal lamp is arranged in the box body, a second electric push rod is arranged at the position, corresponding to the feeding opening, of the bottom in the box body in the horizontal direction, the fixed end of the second electric push rod is fixed on the inner wall of the box body, a feeding box is arranged at the telescopic end of the second electric push rod, the length of the feeding box is smaller than the telescopic length of the second electric push rod, and the height of the feeding box is smaller than that of the baffle;
the control circuit comprises a first motor for controlling the movement of the first electric push rod and a second motor for controlling the movement of the second electric push rod, thermal relays FR1 and FR2, contactors KM1, KM2, KM3, KM4 and KM5, fuses FU1, FU2 and FU3, an emergency stop switch SB1, time relays KT1, KT2, KT3, KT4 and KT 5;
the three-phase input end of the first motor is connected with a thermal relay FR1, a normally open contact of a contactor KM2 and a fuse FU1 in series and then connected to U, V and a W wire of three-phase alternating current, the normally open contact of the contactor KM1 is connected with the normally open contact of a contactor KM2 in parallel, the contactor KM2 is used for controlling forward rotation of the first motor, and the contactor KM1 is used for controlling reverse rotation of the first motor; the three-phase input end of the second motor is connected with a thermal relay FR2, a normally open contact of a contactor KM4 and a fuse FU2 in series and then connected to U, V and a W wire of three-phase alternating current, the normally open contact of the contactor KM3 is connected with the normally open contact of a contactor KM4 in parallel, the contactor KM4 is used for controlling the forward rotation of the second motor, and the contactor KM3 is used for controlling the reverse rotation of the second motor;
the U line and the V line of the three-phase alternating current are connected with a fuse FU3 in series, the U line of the three-phase alternating current is also connected with a normally closed contact of a thermal relay FR1, a normally closed contact of a thermal relay FR2 and one end of an emergency stop switch SB1 in series, and 4 branches are connected between the other end of the emergency stop switch SB1 and the V line of the three-phase alternating current in parallel and are respectively a first branch, a second branch, a third branch and a fourth branch;
the first branch circuit comprises a relay J1, a time relay KT1, a contactor KM1, an LED lamp and a buzzer, the MCU is connected with the control end of the relay J1, the normally closed contact of the relay J1 and the time relay KT1, the coil of the time relay KT1, the coil of the contactor KM1, the LED lamp and the buzzer are connected in series, and the normally open contact of the contactor KM1 is connected with the two ends of the relay J1 in parallel; the first branch circuit further comprises a time relay KT4, a contactor KM2, a time relay KT5, a contactor KM3 and a contactor KM4, one end of a normally open contact of the time relay KT4 is connected with the connecting end of the emergency stop switch SB1 and the relay J1, the other end of the normally open contact of the time relay KT4 is connected with a coil of the contactor KM2, a normally closed contact of the time relay KT5 and one end of a coil of the time relay KT5 in series, and the other end of the coil of the time relay KT5 is connected with the connecting end of a coil of; one end of a normally open contact of the contactor KM4 is connected with the connecting end of the emergency stop switch SB1 and the relay J1, the other end of the normally open contact of the contactor KM4 is connected with the connecting end of the coil of the contactor KM1 and the LED lamp, and the normally open contact of the contactor KM3 is connected with the two ends of the normally open contact of the contactor KM4 in parallel;
the second branch comprises a time relay KT1, a contactor KM3 and a time relay KT2, a normally open contact of the time relay KT1, a coil of the contactor KM3, a normally closed contact of the time relay KT2 and a coil of the time relay KT2 are connected in series, and the normally open contact of the contactor KM3 is connected to two ends of the normally open contact of the time relay KT1 in parallel;
the third branch comprises a contactor KM3, an ultraviolet germicidal lamp, a time relay KT3 and a contactor KM5, a normally open contact of the contactor KM3, the ultraviolet germicidal lamp, a normally closed contact of the time relay KT3, a coil of the time relay KT3 and a coil of the contactor KM5 are connected in series, and the normally open contact of the contactor KM5 is connected to two ends of the normally open contact of the contactor KM3 in parallel; the timing time of the time relay KT3 is greater than the timing time of the time relay KT 2;
the fourth branch comprises a time relay KT3, a time relay KT4 and a contactor KM4, a normally open contact of the time relay KT3, a coil of the time relay KT4, a normally closed contact of the time relay KT4 and a coil of a contactor KM4 are connected in series, and the normally open contact of the contactor KM4 is connected with two ends of the normally open contact of the time relay KT3 in parallel.
2. The remote pet feeding device of claim 1, wherein: the bottom of the feeding box is provided with a fixed pulley, and the bottom of the inner cavity of the box body is provided with a sliding groove matched with the fixed pulley.
3. The remote pet feeding device of claim 2, wherein: the height of the bottom of the inner cavity of the feeding box is gradually reduced from left to right.
4. The remote pet feeding device of claim 1, wherein: the front surface and the back surface of the box body are provided with a plurality of uniformly distributed air holes with filter screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921098642.4U CN210538091U (en) | 2019-07-15 | 2019-07-15 | Remote pet feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921098642.4U CN210538091U (en) | 2019-07-15 | 2019-07-15 | Remote pet feeding device |
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| Publication Number | Publication Date |
|---|---|
| CN210538091U true CN210538091U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921098642.4U Expired - Fee Related CN210538091U (en) | 2019-07-15 | 2019-07-15 | Remote pet feeding device |
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| CN (1) | CN210538091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110214714A (en) * | 2019-07-15 | 2019-09-10 | 南京工业职业技术学院 | A kind of long-range feeding device for pets |
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2019
- 2019-07-15 CN CN201921098642.4U patent/CN210538091U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110214714A (en) * | 2019-07-15 | 2019-09-10 | 南京工业职业技术学院 | A kind of long-range feeding device for pets |
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