CN216003904U

CN216003904U - Garbage classification's hard thing detection device

Info

Publication number: CN216003904U
Application number: CN202122271486.0U
Authority: CN
Inventors: 夏策联
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-11
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a hard object detection device for garbage classification, which comprises a pressing plate, a controller and a driving mechanism for driving the pressing plate to ascend/descend; a plurality of rods extending downwards are uniformly arranged at the bottom of the pressing plate; a pressure detection device is arranged between each rod body and the pressing plate or at the lower end of each rod body; the driving mechanism and the pressure detection device are electrically connected with the controller. Due to the adoption of the technical scheme, compare with prior art, the utility model discloses a set up the barred body in the clamp plate below, overcome the rubbish in the garbage bin and received the clamp plate extrusion and cause the excessive problem of rubbish.

Description

Garbage classification's hard thing detection device

Technical Field

The utility model relates to a kitchen garbage handles the field, concretely relates to waste classification's hard thing detection device.

Background

The city such as Beijing, Shanghai and the like has carried out legislative management on garbage classification work, and the difficulty is that illegal behaviors of garbage which are not classified are difficult to be punished. After the garbage classification is carried out and the garbage is collected, the existing garbage can needs to supervise garbage throwing in a large amount of manual fields and needs to be subjected to secondary sorting by sanitation workers. The kitchen waste accounts for more than 40% of the total amount of the waste and is the key of waste reduction treatment, but the kitchen waste comprises waste food materials and hard waste such as ceramic, metal, glass, large bones and the like which are not separated. As the crushing process of the kitchen waste involves the use of crushing cutters, on one hand, the hard objects cannot be fermented into organic fertilizer, and on the other hand, the damage to the crushing cutters is serious. Therefore before smashing the process, can be by the hard thing rubbish of staff special inspection kitchen garbage usually, if find hard thing rubbish, pick it out manually, this step extremely consumes the manpower, and operational environment is also comparatively abominable, has harm to staff's health.

In contrast, chinese patent publication No. CN108072914A discloses a hard object detection device for kitchen waste treatment equipment, which is configured to install pressure sensors in a plurality of independent pressing plate units, and determine whether there is hard waste in a garbage can by identifying pressure differences detected by the pressure sensors. The disadvantages are that: the garbage in the garbage can is extruded by the pressing plate unit to cause the garbage to overflow.

SUMMERY OF THE UTILITY MODEL

When solving current kitchen garbage hard thing detection device and using among the background art, rubbish in the garbage bin receives the extrusion of clamp plate unit can cause the excessive problem of rubbish, the utility model provides a garbage classification's hard thing detection device, concrete technical scheme as follows.

A hard object detection device for garbage classification comprises a pressing plate, a controller and a driving mechanism for driving the pressing plate to ascend/descend; a plurality of rods extending downwards are uniformly arranged at the bottom of the pressing plate; a pressure detection device is arranged between each rod body and the pressing plate or at the lower end of each rod body; the driving mechanism and the pressure detection device are electrically connected with the controller.

Therefore, the utility model discloses an evenly be equipped with a plurality of downwardly extending's barred body in the bottom of clamp plate, then detect pressure between each barred body and the clamp plate or the pressure between each barred body and the rubbish through pressure detection device to judge whether be mingled with stereoplasm rubbish in the kitchen garbage, can not lead to rubbish to receive the extrusion and excessive moreover.

Preferably, the first detection end of each pressure detection device is connected with the bottom surface of the pressure plate, and the second detection end of each pressure detection device is respectively connected with the upper end of each rod body; or the first detection end of each pressure detection device is respectively connected with the lower end of each rod body.

Preferably, the bottom surface of the pressing plate is provided with a plurality of sleeves, and the bottoms of the sleeves are provided with first through holes; the upper end of the rod body penetrates through the first through hole, and a limiting structure for limiting the rod body to be separated from the lower part of the sleeve is arranged at the upper end of the rod body; the pressure detection device is positioned in the sleeve and above the limiting structure.

Preferably, the driving mechanism comprises a first driving motor, a worm wheel and a worm; the worm wheel is connected with a motor shaft of the first driving motor; the worm is meshed with the worm wheel; the first driving motor is electrically connected with the controller. The rotary motion of the first driving motor can be converted into the vertical linear motion of the worm through the worm wheel and the worm which are meshed with each other, so that the vertical linear motion of the pressing plate is realized.

Preferably, the pressure detection device is a pressure sensor; or the pressure detection device is a loop formed by connecting a force sensitive resistor and a divider resistor in series and a voltage detection device used for detecting the voltage on the force sensitive resistor or the divider resistor, and the voltage detection device is electrically connected with the controller.

When a pressure sensor is adopted, if the measured pressure value of each rod body is smaller than a preset pressure threshold value (5-15N), the kitchen waste is not mixed with hard waste; if the pressure value of at least one rod body is larger than a preset pressure threshold value (5-15N), the solid waste is mixed in the kitchen waste.

When the force-sensitive resistor is adopted, whether the kitchen waste is mixed with the hard waste or not can be judged by detecting the change quantity of the voltage value of the force-sensitive resistor or detecting the change quantity of the voltage value of the divider resistor. If the measured change quantity of each voltage value is smaller than a preset voltage threshold value, the kitchen waste is not mixed with hard waste; if the variation of at least one voltage value is larger than the preset voltage threshold value, the kitchen waste is mixed with hard waste. The preset voltage threshold can be determined according to specific parameters of the force sensitive resistor and the voltage dividing resistor and a preset pressure threshold.

Preferably, the device also comprises a box body, and the pressing plate and the driving mechanism are both arranged in the box body; the bottom of the box body is provided with a bottom cover, the bottom cover is provided with a plurality of second through holes, and the second through holes and the rod bodies are arranged in a one-to-one correspondence mode. Since the bar body may be inserted into kitchen waste such as kitchen waste and then brought into the case, the above structure may prevent the kitchen waste attached to the bar body from passing through the second through hole of the bottom cover and being brought into the case, thereby maintaining the inside of the case from being contaminated by the kitchen waste.

Preferably, the lower surface of the bottom cover is further provided with a first sensor for detecting whether an object is arranged below the box body, and the first sensor is electrically connected with the controller. Therefore, when the sensor detects that an object (a garbage bin) is arranged below the box body, the controller sends a signal to the driving mechanism to start hard garbage detection.

Preferably, a second sensor or a first limit switch for detecting whether the pressure plate reaches the bottom of the box body and a third sensor or a second limit switch for detecting whether the pressure plate reaches the top of the box body are arranged in the box body; the second sensor or the first limit switch and the third sensor or the second limit switch are electrically connected with the controller.

Preferably, the device further comprises an alarm, and the alarm is electrically connected with the controller.

Preferably, the garbage can further comprises a garbage can provided with a box door and a second driving motor used for driving the box door to open/close, and the second driving motor is electrically connected with the controller.

Owing to adopted above technical scheme, compare with prior art, the utility model discloses a set up the barred body in the clamp plate below, overcome the rubbish in the garbage bin and received the clamp plate extrusion and cause the excessive problem of rubbish.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a sectional view taken along line a-a of embodiment 1 of the present invention;

fig. 4 is a sectional view taken along line a-a of embodiment 2 of the present invention;

fig. 5 is a sectional view taken along line a-a of embodiment 3 of the present invention;

FIG. 6 is an enlarged view of area B of FIG. 5;

fig. 7 is a sectional view taken along line a-a of embodiment 4 of the present invention;

FIG. 8 is an enlarged view of area C of FIG. 7;

FIG. 9 is an enlarged schematic view of another configuration of region C of FIG. 7;

fig. 10 is a schematic structural view of the bottom cover of the present invention;

FIG. 11 is a schematic diagram of the circuit connection of the present invention;

fig. 12 is a schematic circuit connection diagram of one of the pressure detecting devices according to the present invention;

fig. 13 is a schematic circuit connection diagram of another pressure detecting device according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1-3, a hard object detector for sorting waste is shown positioned above a waste bin in use.

The device comprises a box body 1, wherein a pressure plate 2, a worm 4 and a driving mechanism for driving the worm 4 to ascend/descend are arranged in the box body 1. The lower end of the worm 4 is fixedly connected with the pressing plate 2, a plurality of rods 21 extending downwards are uniformly arranged at the bottom of the pressing plate 2, and a pressure detection device 51 is arranged between each rod 21 and the pressing plate 2. Specifically, a first detection end of each pressure detection device 51 is connected to the bottom surface of the pressure plate 2, and a second detection end of each pressure detection device 51 is connected to an upper end of each rod 21.

As shown in fig. 3 and 10, a bottom cover 11 is disposed at the bottom of the box body 1, a plurality of second through holes 12 are disposed on the bottom cover 11, and the plurality of second through holes 12 and the plurality of rod bodies 21 are disposed in a one-to-one correspondence manner. Preferably, there are 12 bars 21, and the layout of the 12 bars 21 is the same as the layout of the second through holes 12 in fig. 10.

Specifically, as shown in fig. 3, the drive mechanism includes a first drive motor 3 and a worm wheel 31. The worm wheel 31 is connected with a motor shaft of the first driving motor 3; the length direction of the worm 4 is consistent with the moving direction of the pressure plate 2, and the worm 4 is meshed with the worm wheel 31. The first driving motor 3 is installed on the inner wall of the top of the box body 1, and the direction of a motor shaft of the first driving motor 3 is vertical to the length direction of the worm 4. The worm wheel 31 is rotated by the first driving motor 3, thereby raising/lowering the worm 4.

As shown in fig. 3, the bottom cover 11 is further provided at a lower surface thereof with a first sensor 52 for detecting whether an object is present under the case 1. The bottom of the box body 1 is further provided with a second sensor 53 for detecting whether the pressing plate reaches the bottom of the box body, and the upper part of the box body 1 is further provided with a third sensor 54 for detecting whether the pressing plate reaches the top of the box body. Of course, the second sensor 53 and the third sensor 54 can be replaced by limit switches or other existing devices that can achieve the same function. The first sensor 52 may be a laser sensor or an ultrasonic sensor, and the second sensor 53 and the third sensor 54 may be photoelectric sensors or infrared sensors.

As shown in fig. 1 and 11, the garbage can 6 provided with a box door 61 and a second driving motor for driving the opening/closing of the box door, as well as an alarm and a controller are further included.

As shown in fig. 11, the first sensor, the second sensor, the third sensor, the pressure detection device, the first driving motor, the second driving motor and the alarm are all electrically connected to the controller.

As shown in fig. 11-13, the pressure detection device may be a pressure sensor. The pressure detection device can also be a loop formed by connecting a force sensitive resistor and a divider resistor in series and a voltage detection device for detecting the voltage on the force sensitive resistor or the divider resistor, the voltage detection device is electrically connected with the controller, and the pressure between the rod body and the pressing plate is reflected through the voltage value variation. Of course, the voltage detection device can also be designed to be integrated in the controller.

During the use, at first place the garbage bin in hard thing detection device below, first sensor detects there is the object hard thing detection device below, sends the signal to the controller, and the controller sends the signal to first driving motor, and first driving motor drives the worm and drives clamp plate, the vertical downstream of barred body, and each barred body passes corresponding second through-hole.

If no hard garbage exists in the garbage can, the rod body cannot bear large resistance in the downward movement process, the pressure values measured by the pressure sensors are smaller than a preset pressure threshold value (5-15N, preferably 10N), or the voltage variation measured by the voltage detection units is smaller than a preset voltage threshold value. When the pressing plate moves downwards to the bottom of the box body, the second sensor sends a signal to the controller, and the controller controls the first driving motor to rotate reversely, so that the worm is driven to drive the pressing plate to move vertically upwards; when the pressing plate moves upwards to the top of the box body, the third sensor sends a signal to the controller, and the controller controls the first driving motor to stop. Meanwhile, the controller also controls the second driving motor to open the door of the dustbin, so that the residents can throw in the garbage.

If there is stereoplasm rubbish in the garbage bin, the barred body receives the blocking of stereoplasm rubbish in the downward motion process, and the pressure value that at this moment at least one pressure sensor surveyed can be greater than preset pressure threshold far away, or the voltage variation that at least one voltage detection unit surveyed is greater than preset voltage threshold. At the moment, the controller controls the first driving motor to rotate reversely, so that the worm is driven to drive the pressing plate to move vertically upwards; when the pressing plate moves upwards to the top of the box body, the third sensor sends a signal to the controller, and the controller controls the first driving motor to stop. Meanwhile, the controller also sends a signal to the alarm, the alarm sends an alarm after receiving the signal to remind that hard garbage is in the garbage can, garbage is unqualified to be thrown in, and at the moment, the box door of the garbage can cannot be opened, and residents cannot throw in the garbage.

The preset voltage threshold can be determined according to specific parameters of the force sensitive resistor and the voltage dividing resistor and a preset pressure threshold. Taking fig. 13 as an example, the power supply voltage is 5V, the size of the voltage dividing resistor R0 is 10k Ω, and R1-R12 are force sensitive resistors. When the force sensitive resistor is not extruded, the force sensitive resistor is equivalent to an open circuit, and the voltage value on the voltage dividing resistor R0 is 0V; when the force sensitive resistor is pressed by a force of 10N, the resistance of the force sensitive resistor is reduced to about 1k Ω, and the voltage value of the voltage dividing resistor R0 is 4.54V, i.e. the force of 10N (the preset pressure threshold) corresponds to the voltage variation (the preset voltage threshold) of 4.54V. The preset voltage threshold for measuring the voltage variation of the force sensor can be calculated in the same way, and is not described herein again.

Example 2

Referring to fig. 4, a hard object detecting device for garbage classification, which is substantially identical to the device of embodiment 1, except that pressure detecting means 51 are provided at the lower end of each rod 21.

Example 3

Referring to fig. 5 and 6, a hard object detecting device for garbage classification is substantially the same as the device in embodiment 1, except that a plurality of sleeves 22 are provided on the bottom surface of the pressing plate 2 in this embodiment, and a first through hole is provided on the bottom of each sleeve 22. The upper end of the rod body 21 penetrates through the first through hole, and the upper end of the rod body 21 is provided with a limiting structure for limiting the rod body 21 to be separated from the lower part of the sleeve 22. The pressure detection device 51 is located in the sleeve 22 and above the limiting structure. Specifically, the stopper structure is a stopper 23 having a size larger than the first through hole.

Example 4

Referring to fig. 7 to 9, a hard object detecting device for garbage classification, which is substantially identical to the device of embodiment 3 except that a sleeve 22 is provided at the lower end of a rod 21, and the bottom of the sleeve 22 is closed. The sleeve 22 may be sized larger than the rod 21 as shown in fig. 8, in which case the sleeve 22 cannot be retracted into the housing 1. The size of the sleeve 22 may be equal to or smaller than the rod 21 as shown in fig. 9, in which case the sleeve 22 can be retracted completely into the case 1.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A hard object detection device for garbage classification comprises a pressing plate, a controller and a driving mechanism for driving the pressing plate to ascend/descend; the method is characterized in that: a plurality of rods extending downwards are uniformly arranged at the bottom of the pressing plate; a pressure detection device is arranged between each rod body and the pressing plate or at the lower end of each rod body; the driving mechanism and the pressure detection device are electrically connected with the controller.

2. The hard object detection device for garbage classification according to claim 1, characterized in that: the first detection end of each pressure detection device is connected with the bottom surface of the pressing plate, and the second detection end of each pressure detection device is respectively connected with the upper end of each rod body; or the first detection end of each pressure detection device is respectively connected with the lower end of each rod body.

3. The hard object detection device for garbage classification according to claim 1, characterized in that: the bottom surface of the pressing plate is provided with a plurality of sleeves, and the bottoms of the sleeves are provided with first through holes; the upper end of the rod body penetrates through the first through hole, and a limiting structure for limiting the rod body to be separated from the lower part of the sleeve is arranged at the upper end of the rod body; the pressure detection device is positioned in the sleeve and above the limiting structure; or

The lower end of each rod body is provided with a sleeve with a closed bottom, and the top of the sleeve is provided with a first through hole; the lower end of the rod body penetrates through the first through hole, and a limiting structure for limiting the sleeve to be separated from the lower part of the rod body is arranged at the lower end of the rod body; the pressure detection device is positioned in the sleeve and below the limiting structure.

4. A refuse sorting hard object detecting apparatus according to claim 2 or 3, characterized in that: the driving mechanism comprises a first driving motor, a worm wheel and a worm; the worm wheel is connected with a motor shaft of the first driving motor; the worm is meshed with the worm wheel; the first driving motor is electrically connected with the controller.

5. A refuse sorting hard object detecting apparatus according to claim 2 or 3, characterized in that: the pressure detection device is a pressure sensor; or the pressure detection device is a loop formed by connecting a force sensitive resistor and a divider resistor in series and a voltage detection device used for detecting the voltage on the force sensitive resistor or the divider resistor, and the voltage detection device is electrically connected with the controller.

6. The hard object detection device for garbage classification according to claim 5, characterized in that: the pressing plate and the driving mechanism are both arranged in the box body; the bottom of the box body is provided with a bottom cover, the bottom cover is provided with a plurality of second through holes, and the second through holes and the rod bodies are arranged in a one-to-one correspondence mode.

7. The hard object detection device for garbage classification according to claim 6, characterized in that: the lower surface of bottom still is equipped with the first sensor that is used for detecting whether there is the object below the box, first sensor with the controller electricity is connected.

8. The hard object detection device for garbage classification according to claim 7, characterized in that: a second sensor or a first limit switch for detecting whether the pressing plate reaches the bottom of the box body or not and a third sensor or a second limit switch for detecting whether the pressing plate reaches the top of the box body or not are arranged in the box body; the second sensor or the first limit switch and the third sensor or the second limit switch are electrically connected with the controller.

9. A refuse sorting hard matter detecting apparatus according to any one of claims 1 to 3, characterized in that: the alarm is electrically connected with the controller.

10. A refuse sorting hard matter detecting apparatus according to any one of claims 1 to 3, characterized in that: the garbage can is provided with a box door, and the second driving motor is used for driving the box door to open/close and is electrically connected with the controller.