Anti-pinch method, bag opening or tightening method, odor prevention mechanism, and garbage can

Abstract

The embodiment of the present application relates to an intelligent furniture, in particular to a clamping prevention method, a bag opening or tightening method, an odor prevention mechanism and a garbage can, the clamping prevention method comprising the following steps: when a driving device of the garbage can drives at least one odor prevention rod of an odor prevention clamp to move linearly from a current position to a terminal position away from the current position, it is determined whether the odor prevention rod is blocked; if it is determined that the odor prevention rod is blocked, it is further determined whether the odor prevention rod is located at a starting position away from the terminal position; if it is determined that the odor prevention rod is not located at the starting position, the driving device is controlled to drive the odor prevention rod to move linearly towards the starting position. Compared with the prior art, the garbage can can prevent the odor prevention clamp from clamping foreign matters or the user's fingers due to misoperation without affecting the tightening and opening of the bag opening of the garbage bag, improves the safety of the garbage can during use, and can also protect the driving device and prolong the service life of the driving device.

Description

Technical Field

[0001] Embodiments of the present invention relate to a smart furniture, and more particularly to an anti-pinch method, a bag opening or tightening method, an odor-proof mechanism, and a trash can. Background Technology

[0002] Smart trash cans, as a type of intelligent furniture device that can automatically open and close the lid and automatically seal the contents, completely solve the hygiene pollution hazards posed by traditional trash cans to users. They can also effectively prevent the spread of various infectious diseases through garbage and prevent the odor from overflowing from the garbage inside the can. Therefore, they are increasingly being used in homes.

[0003] Currently, it's common for smart trash cans to have large storage capacity left in the trash bags, but the trash inside has already begun to decompose, producing unpleasant odors. Even with the lid closed, the odor can still escape through the gaps between the lid and the opening, especially noticeable with wet trash, negatively impacting the user experience. Therefore, to prevent odors from escaping the trash can, some trash cans are equipped with odor-preventing clips. When the lid is closed, the clips tighten the opening of the trash bag; conversely, when the lid is opened, the clips open the bag.

[0004] However, the inventors discovered that when the odor-preventing clip tightens or opens the garbage bag, the clip often catches foreign objects during its movement. For example, the clip might tighten before the garbage has fully fallen into the bin, trapping the garbage and preventing it from falling in. Alternatively, due to user error, the clip might pinch a user's finger while tightening the bag. Furthermore, because the clip has considerable clamping force, pinching a user's finger can cause significant injury.

[0005] In addition, once the odor-proof clip catches a foreign object, the drive device that drives the odor-proof rod will continue to drive the rod. This will cause the current of the drive device to rise continuously, which will eventually affect the service life of the drive device and cause damage to it. Summary of the Invention

[0006] The purpose of this invention is to design an anti-pinch method, a bag opening opening or tightening method, an odor-proof mechanism, and a trash can. This method can tighten and open the trash bag opening without affecting the odor-proof clamps, and also prevent the odor-proof clamps from pinching foreign objects or pinching the user's fingers due to misoperation. This improves the safety of the trash can during use and also protects the drive device, extending its service life.

[0007] To address the aforementioned technical problems, embodiments of the present invention provide an anti-pinch method for use with the odor-proof clips of a trash can. The anti-pinch method includes the following steps:

[0008] When the drive device of the trash can drives at least one of the odor-proof rods of the odor-proof clamp to move in a straight line from the current position to a stop position away from that position, it is determined whether the odor-proof rod is obstructed.

[0009] If it is determined that the odor-proof rod is blocked, it is further determined whether the odor-proof rod is located at the starting position far away from the termination position;

[0010] If it is determined that the odor-proof rod is not in the starting position, the driving device is controlled to drive the odor-proof rod to move in a straight line towards the starting position.

[0011] In addition, embodiments of the present invention also provide a method for opening or tightening a bag opening, comprising the following steps:

[0012] Based on the received instructions to tighten or open the bag opening, the drive device of the trash can is controlled to drive at least one odor-proof rod of the odor-proof clamp to move in a straight line from its current position to a termination position away from that position.

[0013] Determine whether the odor-proof rod has moved to the stop position;

[0014] If it is determined that the odor-proof rod has moved to the stop position, the drive device will be turned off;

[0015] If it is determined that the odor-proof rod has not moved to the stop position, the anti-pinch method described above shall continue to be executed.

[0016] When the instruction to tighten the bag opening is received, the direction of movement of the odor-proof rod is opposite to the direction of movement of the odor-proof rod when the instruction to open the bag opening is received.

[0017] In addition, embodiments of the present invention provide an odor-preventing mechanism, comprising:

[0018] Odor-proof clip: The odor-proof clip includes at least one odor-proof rod;

[0019] A driving device, connected to the odor-proof rod, is used to drive the odor-proof rod to slide along a preset straight direction;

[0020] The main control module, connected to the drive device, is used to receive instructions to tighten or open the bag opening.

[0021] The main control module is also used to control the driving device after receiving the bag opening tightening command or the bag opening opening command, so that the driving device drives the odor-proof rod to move in a straight line from its current position to a stop position away from that position.

[0022] The main control module is also used to determine whether the odor-proof rod is obstructed when the odor-proof rod moves, and to continue to determine whether the odor-proof rod is located at a starting position far away from the termination position when it is determined that the odor-proof rod is obstructed.

[0023] The main control module is also used to control the driving device after determining that the odor-proof rod is not in the starting position, so that the driving device drives the odor-proof rod to move in a straight line in the direction of the starting position.

[0024] In addition, embodiments of the present invention also provide a trash can, comprising:

[0025] A bin body; the bin body has: a bin opening and a receiving cavity communicating with the bin opening along a preset axis direction; wherein, the bin opening is used for laying garbage bags into the receiving cavity;

[0026] The odor-proof mechanism described above; the odor-proof mechanism is arranged opposite to the opening of the bin along the preset axis direction, and the odor-proof mechanism is used to tighten or open the opening of the garbage bag.

[0027] Compared with the prior art, the embodiments of the present invention can determine in real time whether the odor-proof rod is obstructed during the linear motion of the drive device. Once it is determined that the odor-proof rod is obstructed, the drive device can be controlled to drive the odor-proof rod to move linearly in the opposite direction. This can prevent the odor-proof rod from getting caught on foreign objects or the user's fingers due to accidental operation, without affecting the tightening and opening of the garbage bag opening by the odor-proof clamp. This improves the safety of the garbage can during use and also effectively protects the drive device, extending its service life.

[0028] In addition, the step of determining whether the odor-proof rod is obstructed specifically includes:

[0029] Calculate the duration of the odor-proof rod's movement toward the termination position;

[0030] If the odor-proof rod is not detected to have moved to the stop position within a preset time period, it is determined that the odor-proof rod is blocked.

[0031] If the odor-proof rod is detected to have moved to the stop position within a preset time period, it is determined that the odor-proof rod is not obstructed.

[0032] In addition, the step of determining whether the odor-proof rod is obstructed specifically includes:

[0033] Calculate the current value of the driving device when the odor-proof rod moves towards the stop position;

[0034] If the calculated current value of the drive device is greater than or equal to the preset current value, it is determined that the odor-proof rod is blocked.

[0035] If the calculated current value of the drive device is less than the preset current value, it is determined that the odor-proof rod is not obstructed.

[0036] In addition, after determining whether the odor-proof rod is located in the starting position, the following sub-steps are also included;

[0037] Once it is determined that the odor-proof rod is in the starting position, the drive device is turned off.

[0038] In addition, after controlling the drive device to drive the odor-proof rod to move linearly in the direction of the starting position, the following steps are also included:

[0039] Determine whether the odor-proof rod has moved into place;

[0040] Once the odor-proof rod is determined to be in position, the drive device is controlled to stop driving the odor-proof rod.

[0041] In addition, the step of determining whether the odor-proof rod has reached its designated position specifically includes:

[0042] Calculate the time it takes for the odor-proof rod to move towards the starting position;

[0043] When the odor-proof rod is detected to have moved to the starting position, and the calculated time for the odor-proof rod to move to the starting position is less than or equal to a preset time, it is determined that the odor-proof rod has moved to the correct position.

[0044] When the odor-proof rod is not detected to have moved to the starting position, and the calculated movement time of the odor-proof rod is equal to the preset time, it is determined that the odor-proof rod has moved to the correct position.

[0045] If the odor-proof rod is not detected to have moved to the starting position, and the calculated movement time of the odor-proof rod is less than the preset time, it is determined that the odor-proof rod has not moved to the correct position.

[0046] In addition, after controlling the drive device to stop driving the odor-proof rod, the following steps are also included:

[0047] Determine whether the odor-proof rod is in the starting position;

[0048] If the odor-proof rod is determined to be in the starting position, the drive device is turned off;

[0049] If it is determined that the odor-proof rod is not in the starting position, after a preset period of time, the driving device is controlled to drive the odor-proof rod to continue to move in a straight line towards the starting position.

[0050] When the odor-proof rod moves to the starting position, the drive device is turned off.

[0051] In addition, after determining that the odor-proof rod is blocked, the following sub-steps are also included;

[0052] An alarm notification was issued.

[0053] In addition, the step of determining whether the odor-proof rod has moved to the stop position specifically includes:

[0054] If the odor-proof rod is detected at the termination position, it is determined that the odor-proof rod has moved to the termination position;

[0055] If the odor-proof rod is not detected at the termination position, it is determined that the odor-proof rod has not moved to the termination position.

[0056] In addition, the odor-proof mechanism includes:

[0057] Both the first detection module and the second detection module are electrically connected to the main control module;

[0058] When the main control module receives the bag opening tightening command, the first detection module is used to detect whether the odor-proof rod has moved to the termination position; the second detection module is used to detect whether the odor-proof rod has moved to the starting position.

[0059] When the main control module receives the instruction to open the bag opening, the second detection module is used to detect whether the odor-proof rod has moved to the termination position; the first detection module is used to detect whether the odor-proof rod has moved to the starting position. Attached Figure Description

[0060] One or more embodiments are illustrated by way of example with the corresponding pictures in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0061] Figure 1 This is a flowchart illustrating the anti-pinch method according to the first embodiment of the present invention;

[0062] Figure 2 This is a flowchart illustrating the method for opening or tightening the bag opening according to the second embodiment of the present invention.

[0063] Figure 3This is a schematic diagram of the structure of the odor-proof clip according to the third embodiment of the present invention when the bag opening is opened;

[0064] Figure 4 This is a schematic diagram of the structure of the odor-proof clip according to the third embodiment of the present invention when the bag opening is tightened;

[0065] Figure 5 This is a system module block diagram of the odor-proof clip according to the third embodiment of the present invention;

[0066] Figure 6 This is a schematic diagram of the structure of a trash can according to the fourth embodiment of the present invention. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of the present invention to facilitate a better understanding of this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0068] Example 1

[0069] The first embodiment of the present invention relates to an anti-pinch method, applied to the odor-proof clip of a trash can, such as... Figure 1 As shown, the anti-pinch method includes the following steps:

[0070] Step 110: When the drive device of the trash can drives at least one of the odor-proof rods of the odor-proof clamp to move in a straight line from the current position to the end position away from the current position, determine whether the odor-proof rod is blocked.

[0071] Step 120: If it is determined that the odor-proof rod is blocked, continue to determine whether the odor-proof rod is located at the starting position far away from the termination position.

[0072] Step 130: If it is determined that the odor-proof rod is not in the starting position, control the drive device to drive the odor-proof rod to move linearly in the direction of the starting position.

[0073] As can be seen from the above, when the drive device drives the odor-proof rod in a linear motion, it can determine in real time whether the odor-proof rod is obstructed. Once it is determined that the odor-proof rod is obstructed, the drive device can be controlled to drive the odor-proof rod to move in the opposite direction in a linear motion. This can prevent the odor-proof clamp from tightening and opening the garbage bag opening without affecting the odor-proof clamp, and also prevent the odor-proof rod from pinching foreign objects or pinching the user's fingers due to misoperation. This improves the safety of the garbage can during use and also effectively protects the drive device, extending its service life.

[0074] Specifically, in order for the trash can to accurately determine whether the odor-preventing rod is obstructed during movement, in this embodiment, step 110, which determines whether the odor-preventing rod is obstructed, specifically includes:

[0075] Calculate the time it takes for the odor-proof rod to move to the stop position.

[0076] If the odor-preventing rod does not reach the stop position within a preset time period, it is determined that the odor-preventing rod is obstructed. If the odor-preventing rod reaches the stop position within a preset time period, it is determined that the odor-preventing rod is not obstructed. Since the odor-preventing rod of the odor-preventing clip generally has a fixed movement time from one end to the other when it is not obstructed, for example, the movement time required from one end to the other is 2 seconds. Therefore, in order to accurately determine whether the odor-preventing rod is obstructed during movement, the movement time from one end to the other can be set to 3 seconds. If the odor-preventing rod is not detected to have reached the stop position within 3 seconds, it means that the odor-preventing rod is obstructed during movement. If the odor-preventing rod is detected to have reached the stop position within 3 seconds, it means that the odor-preventing rod is not obstructed during movement. Furthermore, in order to effectively detect the position of the odor-preventing rod, a first detection module and a second detection module can be set at both ends along the movement direction of the odor-preventing rod, respectively. For example, when the odor-proof rod tightens the bag opening, it can move linearly towards the end where the first detection module is located, and the first detection module can detect whether the odor-proof rod has moved to the stop position. When the odor-proof rod opens the bag opening, it can move linearly towards the end where the second detection module is located, and the second detection module can detect whether the odor-proof rod has moved to the stop position. Furthermore, it should be noted that in this embodiment, both the first and second detection modules can be photoelectric sensors. These photoelectric sensors can detect whether the odor-proof rod has moved to the start or stop position. Of course, in practical applications, other types of sensors can also be used for the first and second detection modules. However, in this embodiment, the types of the first and second detection modules are not specifically limited.

[0077] Additionally, it is worth noting that since the odor-blocking rod of the odor-blocking clip moves from one end to the other, if obstructed, not only will the movement time exceed the preset time, but the current required by the drive device to drive the odor-blocking rod will also gradually increase as the odor-blocking rod becomes obstructed. Therefore, as an alternative, in this embodiment, the current value of the drive device when driving the odor-blocking rod can also be calculated to determine whether the odor-blocking rod is obstructed during its movement. That is, step 110 can also specifically include:

[0078] Calculate the current value of the drive device when the odor-proof rod moves to the end position.

[0079] If the calculated current value of the drive device is greater than or equal to the preset current value, the odor-proof rod is determined to be obstructed. If the calculated current value of the drive device is less than the preset current value, the odor-proof rod is determined to be unobstructed.

[0080] Furthermore, because the odor-blocking rod may encounter obstruction when in its initial position, it cannot move linearly in the opposite direction. Therefore, after determining whether the odor-blocking rod is in the initial position, as... Figure 1 As shown, the anti-pinch method of this embodiment further includes the following sub-steps:

[0081] Step 190: If the odor-proof rod is determined to be in the starting position, the drive device is shut off. By shutting off the drive device in a timely manner, effective protection can be achieved, thereby further extending the service life of the drive device.

[0082] Furthermore, it is worth mentioning that when the odor-preventing rod is obstructed, the drive device can effectively control the movement of the odor-preventing rod towards the starting position. After step 130, such as... Figure 1 As shown, the anti-pinch method of this embodiment further includes the following steps:

[0083] Step 140: Determine if the odor-proof rod has moved into place.

[0084] Step 150: If it is determined that the odor-proof rod has moved to the correct position, control the drive device to stop driving the odor-proof rod. If it is determined that the odor-proof rod has not moved to the correct position, continue to step 130.

[0085] Specifically, in the step of determining whether the odor-proof rod has reached the correct position, i.e., step 140, the following are included:

[0086] Calculate the time it takes for the odor-proof rod to move to the starting position.

[0087] If the odor-proof rod is not detected to have moved to the starting position, and the calculated movement time of the odor-proof rod is less than the preset time, it can be determined that the odor-proof rod has not moved to the correct position.

[0088] When the odor-blocking rod is detected to have moved to the starting position, and the calculated time for the rod to reach this position is less than or equal to a preset time, it means that the rod has been detected to have moved to the starting position within the preset time. At this point, it can be determined that the odor-blocking rod has reached its designated position. This indicates that the odor-blocking rod was obstructed from a position closer to the starting position.

[0089] If the odor-blocking rod is not detected to have moved to the starting position, and the calculated movement time of the odor-blocking rod is equal to the preset time, that is, if the odor-blocking rod has not been detected to have moved to the starting position even after the preset movement time has been reached, it can still be determined that the odor-blocking rod has moved to the correct position. This indicates that the odor-blocking rod is blocked from a position relatively far from the starting position.

[0090] Furthermore, when setting the preset time for the reverse movement of the odor-proof rod, the preset time can be shortened as much as possible. For example, the time for the odor-proof rod to reverse movement after being blocked is only 0.1 seconds. This can not only effectively prevent the odor-proof clamp from continuously clamping the foreign object, but also reduce the chance of the odor-proof rod being blocked again when it reverses.

[0091] Furthermore, since the odor-preventing rod is moving in the reverse direction and may fail to return to its starting position after reaching its designated position, meaning it may be obstructed and unable to return to its original position. Therefore, as a preferred embodiment, after controlling the drive device to stop driving the odor-preventing rod, i.e., after step 150, the following step is also included:

[0092] Step 160: Determine if the odor-proof rod is in the starting position.

[0093] If the odor-proof rod is determined to be in the starting position, continue to execute step 190, that is, turn off the drive device.

[0094] Step 170: If it is determined that the odor-proof rod is not in the starting position, after a preset time period, control the drive device to drive the odor-proof rod to continue to move in a straight line towards the starting position.

[0095] Step 180: When the odor-proof rod moves to the starting position, turn off the drive device.

[0096] It is therefore easy to see that if the odor-preventing rod is obstructed and unable to return to its original position, a preset time period can be allowed. For example, in this embodiment, this preset time period can be set to 5-10 seconds. This ensures that sufficient time is reserved for the user to eliminate any potential obstruction during the reverse movement of the odor-preventing rod before it begins its return movement. After waiting for 5-10 seconds, the drive device can be controlled to continue driving the odor-preventing rod in a straight line towards the starting position. When the odor-preventing rod reaches the starting position, the drive device is turned off. This allows the odor-preventing rod to return to its original position when obstructed, ensuring that it can start moving from the starting position the next time it tightens or opens the garbage bag opening. Furthermore, if the odor-preventing rod is obstructed when opening the bag opening, it can tighten the bag opening again, effectively preventing the leakage of odors from inside the garbage bag.

[0097] In addition, as a preferred embodiment, after determining that the odor-proof rod is blocked, that is, after step 120, the following sub-step is also included;

[0098] Step 200: Issue an alarm notification. Specifically, an alarm module can be installed on the trash can. This alarm module can include at least one of a warning light and a buzzer. Of course, in practical applications, other electrical warning components can also be used for the alarm module. In practical applications, the alarm module can be electrically connected to the main control module of the trash can, so that after determining that the odor-preventing rod is obstructed, the main control module can directly activate the alarm module to issue an alarm notification, thereby reminding the user and allowing the user to promptly resolve the obstruction.

[0099] Example 2

[0100] The second embodiment of the present invention relates to a method for opening or tightening a bag opening, such as... Figure 2 As shown, it includes the following steps:

[0101] Step 210: Based on the received instruction to tighten or open the bag opening, control the drive device of the trash can to drive at least one of the odor-proof rods of the odor-proof clamp to move in a straight line from the current position to a stop position away from that position.

[0102] Step 220: Determine whether the odor-proof rod has moved to the stop position.

[0103] Step 230: If it is determined that the odor-proof rod has moved to the stop position, turn off the drive device.

[0104] Step 240: If it is determined that the odor-proof rod has not moved to the end position, continue to execute the anti-pinch method as described in the first embodiment.

[0105] Specifically, when a command to tighten the bag opening is received, the direction of movement of the odor-proof rod is completely opposite to the direction of movement when a command to open the bag opening is received.

[0106] Specifically, since the direction of movement of the odor-proof rod when receiving a bag-tightening command is completely opposite to the direction of movement when receiving a bag-opening command, in order to effectively detect the position of the odor-proof rod, the position detection method mentioned in the first embodiment can be adopted, that is, a first detection module and a second detection module are respectively set at both ends of the movement direction of the odor-proof rod. For example, when receiving a bag-tightening command, the odor-proof rod can move linearly towards the end where the first detection module is located, and the first detection module can detect whether the odor-proof rod has moved to the end position, while the second module can detect whether the odor-proof rod has moved to the start position. When receiving a bag-tightening command, the odor-proof rod can move linearly towards the end where the second detection module is located, and the second detection module can detect whether the odor-proof rod has moved to the end position, while the first detection module can detect whether the odor-proof rod has moved to the start position.

[0107] Therefore, in the step of determining whether the odor-proof rod has moved to the stop position, i.e., step 220, the specific steps include:

[0108] If an odor-preventing rod is detected at the end position, it can be determined that the odor-preventing rod has moved to the end position; if no odor-preventing rod is detected at the end position, it can be determined that the odor-preventing rod has not moved to the end position.

[0109] As can be seen from the above, when the drive device moves the odor-preventing rod in a straight line, it can detect whether the rod is obstructed in real time. Once obstruction is detected, the drive device can be controlled to move the rod in the opposite direction. This ensures that the odor-preventing clamp can tighten and open the garbage bag opening without affecting its operation, while also preventing the rod from pinching foreign objects or accidentally pinching the user's fingers, thus improving the safety of the garbage can during use. Furthermore, it effectively protects the drive device and extends its service life.

[0110] Example 3

[0111] The third embodiment of the present invention relates to an odor-proof mechanism, such as... Figure 3 and Figure 4 As shown, it includes: odor-proof clip 1, drive device 2 and main control module.

[0112] Among them, combined Figure 3 and Figure 4 As shown, the odor-proof clip 1 includes: at least one odor-proof rod 11, a guide rod 12 arranged along a preset straight direction, and the odor-proof rod 11 and the guide rod 12 are slidably connected, so that the odor-proof rod 11 can slide in the preset straight direction.

[0113] Secondly, in this embodiment, such as Figure 3 and Figure 4 As shown, the drive device 2 is connected to the odor-proof rod and is used to drive the odor-proof rod to slide along a preset straight line direction.

[0114] In addition, in this embodiment, combined with Figure 5 As shown, the main control module is also electrically connected to the drive device 2. This main control module is used to receive instructions to tighten or open the bag opening. Furthermore, upon receiving such instructions, the main control module controls the drive device to move the odor-proof rod 11 linearly from its current position to a position away from that position.

[0115] In addition, combined Figure 5As shown, the main control module is also used to determine whether the odor-proof rod 11 is obstructed when it moves, and when it is determined that the odor-proof rod 11 is obstructed, it is used to continue to determine whether the odor-proof rod 11 is located in the starting position away from the termination position. The main control module is also used to control the drive device after determining that the odor-proof rod 11 is not located in the starting position, so that the drive device drives the odor-proof rod 11 to move linearly in the direction of the starting position.

[0116] It is worth mentioning that, combined with Figure 3 and Figure 4 As shown, the odor-proof mechanism of this embodiment further includes: a first detection module 3 and a second detection module 4, and the first detection module 3 and the second detection module 4 are arranged opposite to each other along a preset straight line direction. Additionally, in conjunction with... Figure 5 As shown, both the first detection module 3 and the second detection module 4 are electrically connected to the main control module.

[0117] In practical applications, when the main control module receives a bag opening tightening command, the first detection module 3 detects whether the odor-proof rod 11 has moved to the end position, while the second detection module 4 detects whether the odor-proof rod 11 has moved to the start position. Furthermore, the main control module also shuts down the drive device 2 when the first detection module 3 detects that the odor-proof rod 11 has moved to the end position. Conversely, when the main control module receives a bag opening opening command, the second detection module 4 detects whether the odor-proof rod 11 has moved to the end position, while the first detection module 3 detects whether the odor-proof rod 11 has moved to the start position. The main control module also shuts down the drive device 2 when the second detection module 4 detects that the odor-proof rod 11 has moved to the end position.

[0118] Additionally, it is worth noting that, in order for the drive device 2 to drive the odor-proof rod 11 to move linearly along a preset straight direction, in this embodiment, as follows: Figure 3 and Figure 4 As shown, the drive device 2 includes: a motor (not shown in the figure), a main synchronous pulley 21 coaxially connected to the motor's main shaft, a driven synchronous pulley 22 disposed opposite to the main synchronous pulley 21 along a preset straight direction, and a synchronous belt 23 connecting the main synchronous pulley 21 and the driven synchronous pulley 22. Furthermore, the motor is electrically connected to the main control module, and the odor-proof rod 11 is connected to the synchronous belt 23. In practical applications, the main control module can control the motor, enabling it to drive the main synchronous pulley 21 to rotate. The synchronous belt 23, under the rotation of the main synchronous pulley 21, subsequently drives the driven synchronous pulley 22 to rotate, thereby realizing the movement of the odor-proof rod 11 along a preset straight direction.

[0119] It is clear from the above that this embodiment is an example of an odor-prevention mechanism corresponding to the first embodiment, and this embodiment can be implemented in conjunction with the first embodiment. The relevant technical details mentioned in the first embodiment remain valid in this embodiment, and will not be repeated here to avoid repetition. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the first and second embodiments.

[0120] Example 4

[0121] The fourth embodiment of the present invention relates to a trash can, such as Figure 6 As shown, it includes: a barrel body 5 and an odor-proof mechanism 100 as described in the third embodiment.

[0122] Among them, such as Figure 6 As shown, the bin body 5 has: a bin opening 51 and a receiving cavity 52 that communicates with the bin opening 51 along a preset axis direction; wherein, the bin opening 51 is used for laying garbage bags into the receiving cavity 52.

[0123] In addition, in this embodiment, the odor-proof mechanism 100 is arranged opposite to the opening 51 of the garbage bag along a preset axis direction. The odor-proof mechanism is used to tighten or open the opening of the garbage bag.

[0124] Those skilled in the art will understand that the above embodiments are specific implementations of the present invention, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A method for preventing pinching, applied to the odor-proof clip of a trash can, characterized in that, The anti-pinch method includes the following steps: When the drive device of the trash can drives at least one of the odor-proof rods of the odor-proof clamp to move in a straight line from the current position to a stop position away from that position, it is determined whether the odor-proof rod is obstructed. If it is determined that the odor-proof rod is blocked, it is further determined whether the odor-proof rod is located at the starting position far away from the termination position; If it is determined that the odor-proof rod is in the starting position, the drive device is turned off; if it is determined that the odor-proof rod is not in the starting position, the drive device is controlled to drive the odor-proof rod to move in a straight line towards the starting position. Determine whether the odor-proof rod has moved into place; Once it is determined that the odor-proof rod has reached its designated position, the drive device is controlled to stop driving the odor-proof rod. Determine whether the odor-proof rod is in the starting position; If the odor-proof rod is determined to be in the starting position, the drive device is turned off; If it is determined that the odor-proof rod is not in the starting position, after a preset period of time, the driving device is controlled to drive the odor-proof rod to continue to move in a straight line towards the starting position. When the odor-proof rod moves to the starting position, the drive device is turned off.

2. The anti-pinch method according to claim 1, characterized in that, The step of determining whether the odor-proof rod is obstructed specifically includes: Calculate the duration of the odor-proof rod's movement toward the termination position; If the odor-proof rod is not detected to have moved to the stop position within a preset time period, it is determined that the odor-proof rod is blocked. If the odor-proof rod is detected to have moved to the stop position within a preset time period, it is determined that the odor-proof rod is not obstructed.

3. The anti-pinch method according to claim 1, characterized in that, The step of determining whether the odor-proof rod is obstructed specifically includes: Calculate the current value of the driving device when the odor-proof rod moves towards the stop position; If the calculated current value of the drive device is greater than or equal to the preset current value, it is determined that the odor-proof rod is blocked. If the calculated current value of the drive device is less than the preset current value, it is determined that the odor-proof rod is not obstructed.

4. The anti-pinch method according to claim 1, characterized in that, The step of determining whether the odor-proof rod has reached its designated position specifically includes: Calculate the time it takes for the odor-proof rod to move towards the starting position; When the odor-proof rod is detected to have moved to the starting position, and the calculated time for the odor-proof rod to move to the starting position is less than or equal to a preset time, it is determined that the odor-proof rod has moved to the correct position. When the odor-proof rod is not detected to have moved to the starting position, and the calculated movement time of the odor-proof rod is equal to the preset time, it is determined that the odor-proof rod has moved to the correct position. If the odor-proof rod is not detected to have moved to the starting position, and the calculated movement time of the odor-proof rod is less than the preset time, it is determined that the odor-proof rod has not moved to the correct position.

5. The anti-pinch method according to claim 1, characterized in that, After determining that the odor-proof rod is blocked, the following sub-steps are also included; An alarm notification was issued.

6. A method for opening or tightening a bag opening, characterized in that, Includes the following steps: Based on the received instructions to tighten or open the bag opening, the drive device of the trash can is controlled to drive at least one odor-proof rod of the odor-proof clamp to move in a straight line from its current position to a termination position away from that position. Determine whether the odor-proof rod has moved to the stop position; If it is determined that the odor-proof rod has moved to the stop position, the drive device will be turned off; If it is determined that the odor-proof rod has not moved to the stop position, the anti-pinch method described in any one of claims 1-5 shall continue to be executed; When the instruction to tighten the bag opening is received, the direction of movement of the odor-proof rod is opposite to the direction of movement of the odor-proof rod when the instruction to open the bag opening is received.

7. The method for opening or tightening the bag opening according to claim 6, characterized in that, The step of determining whether the odor-proof rod has moved to the stop position specifically includes: If the odor-proof rod is detected at the termination position, it is determined that the odor-proof rod has moved to the termination position; If the odor-proof rod is not detected at the termination position, it is determined that the odor-proof rod has not moved to the termination position.

8. An odor-proof mechanism, employing the anti-pinch method as described in any one of claims 1-5, characterized in that, The odor-prevention mechanism includes: Odor-proof clip: The odor-proof clip includes at least one odor-proof rod; A driving device, connected to the odor-proof rod, is used to drive the odor-proof rod to slide along a preset straight direction; The main control module, connected to the drive device, is used to receive instructions to tighten or open the bag opening. The main control module is also used to control the driving device after receiving the bag opening tightening command or the bag opening opening command, so that the driving device drives the odor-proof rod to move in a straight line from its current position to a stop position away from that position. The main control module is also used to determine whether the odor-proof rod is obstructed when the odor-proof rod moves, and to continue to determine whether the odor-proof rod is located at a starting position far away from the termination position when it is determined that the odor-proof rod is obstructed. The main control module is also used to control the driving device after determining that the odor-proof rod is not in the starting position, so that the driving device drives the odor-proof rod to move in a straight line in the direction of the starting position.

9. The odor-proof mechanism according to claim 8, characterized in that, The odor-prevention mechanism includes: Both the first detection module and the second detection module are electrically connected to the main control module; When the main control module receives the bag opening tightening command, the first detection module is used to detect whether the odor-proof rod has moved to the termination position; the second detection module is used to detect whether the odor-proof rod has moved to the starting position. When the main control module receives the instruction to open the bag opening, the second detection module is used to detect whether the odor-proof rod has moved to the termination position; the first detection module is used to detect whether the odor-proof rod has moved to the starting position.

10. A trash can, characterized in that, include: A bin body; the bin body has: a bin opening and a receiving cavity communicating with the bin opening along a preset axis direction; wherein, the bin opening is used for laying garbage bags into the receiving cavity; The odor-proof mechanism as described in claim 8 or 9; the odor-proof mechanism is arranged opposite to the opening of the bin along the preset axis direction, and the odor-proof mechanism is used to tighten or open the opening of the garbage bag.

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