Photoelectric anti-toppling detection device and stirring equipment

Abstract

A photoelectric anti-toppling detection device and stirring equipment, the device comprising: a base comprising a switch cavity, the switch cavity being recessed from the bottom surface of the base to the inside of the base, the switch cavity comprising an inner side surface; the switching circuit is used for controlling the working state of the power output device; the photoelectric switch comprises a transmitting end, a receiving end and a shielding piece, the transmitting end and the receiving end are connected with the switching circuit, the transmitting end and the receiving end are arranged on the inner side face of the switching cavity in pairs, and the shielding piece is arranged in the switching cavity and movably arranged between the transmitting end and the receiving end in a blocking mode; and during toppling, the shielding piece extends out of the switch cavity, so that the receiving end receives a signal of the transmitting end to generate a control signal for controlling the switch circuit. The photoelectric anti-toppling detection device can automatically stop working to prevent toppling when the supporting surface is uneven or violent vibration occurs in the operation process of equipment arranged on the photoelectric anti-toppling detection device.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring equipment protection, in particular to a photoelectric anti-dumping detection device and stirring equipment. Background Art

[0002] Under the existing technology, during the operation of the mixer, the mixer may vibrate violently due to the stirring action or the contact surface of the bottom support of the body is not flat enough, which will cause the mixer to jump and move during the stirring operation. In serious cases, it may even cause the mixer to fall over and cause harm. Utility Model Content

[0003] The embodiments of the present utility model provide a photoelectric anti-dumping detection device and a stirring device, which aim to solve the dumping problem caused by uneven supporting surface or violent vibration during the operation of the stirring device in the prior art.

[0004] In the first aspect, the utility model provides a photoelectric anti-dumping detection device, comprising: a base, comprising a switch cavity, the switch cavity being recessed from the bottom surface of the base toward the interior of the base, the switch cavity comprising an inner side surface; a switching circuit for controlling the working state of a power output device; a photoelectric switch, comprising a transmitting end, a receiving end and a shielding member, the transmitting end and the receiving end being connected to the switching circuit, the transmitting end and the receiving end being arranged in pairs on the inner side surface of the switch cavity, the shielding member being arranged in the switch cavity and movably blocking the transmitting end and the receiving end; wherein, when tipping over, the shielding member extends out of the switch cavity so that the receiving end receives the signal of the transmitting end to generate a control signal for controlling the switching circuit.

[0005] In the photoelectric anti-dump detection device provided by the present invention, the switching circuit includes an instruction processing unit, the first connection end of the transmitting end is connected to the first power supply end, the second connection end of the transmitting end is grounded, the first connection end of the receiving end is connected to the first power supply end and the instruction processing unit, the second connection end of the receiving end is grounded, and the instruction processing unit is used to generate a control signal for controlling the switching circuit when the receiving end receives the signal from the transmitting end.

[0006] In the photoelectric anti-dumping detection device provided by the present invention, the transmitting end includes a light emitting diode, the positive electrode of the light emitting diode is connected to the first power supply end, and the negative electrode of the light emitting diode is grounded.

[0007] In the photoelectric anti-dumping detection device provided by the present invention, the receiving end includes a phototransistor, the collector of the phototransistor is connected to the first power supply end and the instruction processing unit, and the emitter of the phototransistor is grounded.

[0008] In the photoelectric anti-dumping detection device provided by the present invention, the photoelectric switch also includes an elastic member, the switch cavity also includes an inner top surface, the inner top surface is arranged on a side of the opening cavity away from the bottom surface of the base, and the elastic member connects the inner top surface and the shielding member.

[0009] In the photoelectric anti-dumping detection device provided by the present invention, the direction in which the transmitting end points to the receiving end is a first direction, the shielding member extends in a direction perpendicular to the first direction and parallel to the bottom surface of the base, and the plurality of elastic members are arranged along the extension direction of the shielding member.

[0010] In the photoelectric anti-dumping detection device provided by the present invention, the shielding member includes a base portion, a shielding portion and a rotating portion. The rotating portion is provided at a side edge of the base portion and is hinged to the bottom surface of the base. The shielding member can rotate along the hinge between the rotating portion and the bottom surface of the base. The shielding portion is provided at the upper end of the base portion and can be movably provided between the transmitting end and the receiving end. The lower end of the base portion is provided with an arc surface for contacting the contact surface.

[0011] In the photoelectric anti-dump detection device provided by the present invention, the elastic part includes a ball head gas spring, and the shielding part also includes a positioning groove arranged at the upper end of the base foot part, the positioning groove is away from the rotating part, the positioning groove is arranged at the upper end of the base foot part, and the two ends of the ball head gas spring are respectively connected to the positioning groove and the inner top surface.

[0012] The photoelectric anti-dumping detection device provided by the present invention further includes an alarm unit, which is connected to the switch circuit.

[0013] In a second aspect, the utility model provides a stirring device comprising the photoelectric anti-dumping detection device as described above.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the technical solution of the present invention, a switch cavity is provided on the bottom surface of the base, and a photoelectric switch is provided therein, and at the same time a shielding member that can be movable between the transmitting end and the receiving end of the photoelectric switch to provide a shielding function is provided, and the shielding member can extend out of the switch cavity to come into contact with an object or a supporting surface outside the bottom surface of the chassis. The shielding member changes the shielding state between the transmitting end and the receiving end to reflect whether the current base is in a supporting state, thereby controlling the operating state of the power output device, and realizing that when the supporting surface is uneven or violent vibration occurs during the operation of the equipment, the equipment can automatically stop working to prevent tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a front cross-sectional schematic diagram of the photoelectric anti-dumping detection device according to an embodiment of the utility model when it is in a non-working state;

[0018] Figure 2 This is a side cross-sectional diagram of the photoelectric anti-dumping detection device according to an embodiment of the present invention when it is in a non-working state;

[0019] Figure 3 This is a schematic front cross-sectional view of the photoelectric anti-dumping detection device according to an embodiment of the present invention in a working state;

[0020] Figure 4 This is a side cross-sectional schematic diagram of the photoelectric anti-dumping detection device according to an embodiment of the present utility model in a working state;

[0021] Figure 5 This is a front cross-sectional schematic diagram of an embodiment of the photoelectric anti-dumping detection device of the present utility model in a working state;

[0022] Figure 6 This is a three-dimensional schematic diagram of a shielding member in an embodiment of a photoelectric anti-dumping detection device according to an embodiment of the present invention;

[0023] Figure 7 This is a three-dimensional schematic diagram of an embodiment of the photoelectric anti-dumping detection device of the present utility model in a working state;

[0024] Figure 8 This is a cross-sectional view of an embodiment of the photoelectric anti-dumping detection device of the present utility model in a working state;

[0025] Figure 9 This is a three-dimensional schematic diagram of an embodiment of the photoelectric anti-dumping detection device of the present utility model in an inoperative state;

[0026] Figure 10 This is a cross-sectional view of an embodiment of the photoelectric anti-dumping detection device of the present utility model in an inoperative state;

[0027] Figure 11 This is a circuit diagram of a switch circuit of a photoelectric anti-dumping detection device according to an embodiment of the present utility model;

[0028] Figure 12This is a three-dimensional schematic diagram of a stirring device according to an embodiment of the present utility model;

[0029] Description of the figure mark:

[0030] 1. Base; 11. Inner side; 12. Inner top;

[0031] 2. Shielding member; 21. Bottom foot; 22. Shielding portion; 23. Rotating portion; 24. Positioning slot;

[0032] 3. Switching circuit; 31. Transmitting end; 32. Receiving end; 33. Instruction processing unit; 34. First power supply end;

[0033] 4. Elastic part; 41. Ball head gas spring;

[0034] 5. Contact surface. DETAILED DESCRIPTION

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

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

[0037] The embodiment of the utility model provides a photoelectric anti-dumping detection device, which aims to solve the dumping problem caused by uneven supporting surface or severe vibration during the operation of the mixing equipment in the prior art.

[0038] The photoelectric anti-dumping detection device provided by the present invention includes: a base 1, including a switch cavity, the switch cavity is recessed from the bottom surface of the base 1 to the inside of the base 1, and the switch cavity includes an inner side surface 11; a switch circuit 3, used to control the working state of the power output device; a photoelectric switch, including a transmitting end 31, a receiving end 32 and a shielding member 2, the transmitting end 31 and the receiving end 32 are connected to the switch circuit 3, the transmitting end 31 and the receiving end 32 are arranged in pairs on the inner side surface 11 of the switch cavity, and the shielding member 2 is arranged in the switch cavity and can be movably blocked between the transmitting end 31 and the receiving end 32; wherein, when dumping, the shielding member 2 extends out of the switch cavity so that the receiving end 32 receives the signal of the transmitting end 31 to generate a control signal for controlling the switch circuit 3. Figures 1 to 12The bottom surface of the base 1 is recessed inward to form a switch cavity, the inner surface 11 of which is used to install a photoelectric switch. The switch cavity can provide a protective space for the photoelectric switch to avoid being interfered with by the operation of the photoelectric switch. The photoelectric switch includes a transmitting end 31 and a receiving end 32, which are arranged in a pair on the inner surface 11 of the switch cavity. The transmitting end 31 transmits a light signal, and the receiving end 32 receives the signal. The switch circuit 3 controls the working state of the power output device by receiving the signal from the photoelectric switch. The so-called power output device refers to the device in the device where the photoelectric anti-dumping detection device of the present invention is located, which is mainly used to do work and generate motion output, which may cause the entire device to vibrate or even overturn. By receiving the signal from the switch circuit 3, a response can be made to the operating state of the power output device in a timely manner, such as stopping operation or slowing down movement, thereby achieving effective dumping protection. The shielding member 2 is arranged in the switch cavity and can movably block the light path between the transmitting end 31 and the receiving end 32. When the device on which the electrical anti-dump detection device is installed is in a tilted state, the shielding member 2 will extend out of the switch cavity, thereby allowing the receiving end 32 to receive the optical signal from the transmitting end 31. The following example illustrates the working principle of the photoelectric anti-dump detection device as follows: When the device on which the photoelectric anti-dump detection device is installed is in a normal state, the shielding member 2 is located between the transmitting end 31 and the receiving end 32, blocking the optical signal and maintaining the switch circuit 3 in its initial state; when the device tilts, the shielding member 2 loses its support from below and moves under the action of gravity, extending out of the switch cavity. The optical signal from the transmitting end 31 is able to reach the receiving end 32. After receiving the signal, the receiving end 32 generates a control signal, which is used to control the switch circuit 3 and, in turn, the operating state of the power output device.

[0039] Compared with the existing technology, the photoelectric anti-dumping detection device provided by the present invention sets a switch cavity on the bottom surface of the base 1 and sets a photoelectric switch therein, and at the same time sets a shielding member 2 that can be moved between the transmitting end 31 and the receiving end 32 of the photoelectric switch to provide a shielding function, and the shielding member 2 can extend out of the switch cavity to come into contact with objects or supporting surfaces outside the bottom surface of the chassis. The shielding state between the transmitting end 31 and the receiving end 32 is changed by the shielding member 2 to reflect whether the current base 1 is in a supporting state, thereby controlling the operating state of the power output device, and realizing that when the supporting surface is uneven or violent vibration occurs during the operation of the equipment, the equipment can automatically stop working to prevent dumping.

[0040] In one embodiment, referring to Figure 11The switch circuit 3 includes a command processing unit 33. The first connection terminal of the transmitter 31 is connected to the first power supply terminal 34, and the second connection terminal of the transmitter 31 is grounded. The first connection terminal of the receiver 32 is connected to the first power supply terminal 34 and the command processing unit 33, and the second connection terminal of the receiver 32 is grounded. The command processing unit 33 is configured to generate a control signal for controlling the switch circuit 3 when the receiver 32 receives a signal from the transmitter 31. To enable the photoelectric anti-tilt detection device of the present invention to react more intelligently when a tilt occurs, the command processing unit 33 is provided in the switch circuit 3. The functions of the command processing unit 33 are implemented by the MCU. This unit is responsible for processing signals from the receiver 32 and generating control signals to control the operating state of the power output device, ensuring that the device or its power output device is promptly powered off in the event of a tilt, thereby ensuring the safety of the device. The first connection terminal of the transmitter 31 is connected to the first power supply terminal 34 to provide power support, ensuring the normal operation of the transmitter 31. The second connection terminal of the transmitter 31 is grounded to form a complete circuit loop. The first connection end of the receiving terminal 32 is connected to the first power supply terminal 34 and the command processing unit 33, and the second connection end is grounded. Specifically, when the receiving terminal 32 receives the optical signal from the transmitting terminal 31, it generates a low-voltage signal at the first output end and transmits this low-voltage signal from the connected pin circuit to the command processing unit 33. Based on the received signal, the command processing unit 33 determines whether the device is in a tilting state and generates a control signal to control the operating state of the power output device accordingly. This embodiment achieves precise detection and control of the tilting state, with improved stability and reliability.

[0041] Further, refer to Figure 11 The transmitting end 31 includes a light emitting diode, the positive electrode of the light emitting diode is connected to the first power supply end 34, and the negative electrode of the light emitting diode is grounded. The collector of the phototransistor is connected to the first power supply end 34 and the instruction processing unit 33, and the emitter of the phototransistor is grounded. Figure 11 For example, the transmitting end 31 is a light-emitting diode, the positive electrode of which is connected to the first power supply terminal 34, and the negative electrode is grounded, thereby forming a complete circuit to ensure that the light-emitting diode emits light stably. The receiving end 32 is a phototransistor, the emitter of which is grounded, and the collector is not only connected to the power supply, but also connected to the instruction processing unit 33, which receives the light signal and converts it into an electrical signal, thereby improving the accuracy of signal reception while ensuring its normal operation. The photoelectric anti-dumping detection device in this embodiment realizes an efficient photoelectric signal transmission and response mechanism through the cooperation of the light-emitting diode and the phototransistor, enhances the stability and reliability of the photoelectric anti-dumping detection device, and provides a stronger guarantee for the safe operation of the equipment.

[0042] In one embodiment, reference Figures 1 to 5The photoelectric switch also includes an elastic member 4, and the switch cavity also includes an inner top surface 12. Inner top surface 12 is located on the side of the opening cavity away from the bottom surface of base 1. Elastic member 4 connects inner top surface 12 and shielding member 2. The elastic member 4 connects inner top surface 12 and shielding member 2, forming a sensitive feedback mechanism. For example, when the device is tilted or displaced, the elastic force provided by elastic member 4 enables shielding member 2 to respond more quickly than if it relied solely on the weight of shielding member 2, thereby quickly triggering the photoelectric switch. Compared to the prior art and the aforementioned embodiments, the provision of elastic member 4 can improve the sensitivity and reliability of shielding member 2's movement between transmitting end 31 and receiving end 32.

[0043] To further illustrate the method of the embodiment of the present invention, illustratively, the following is combined with Figures 1 to 5 The method of this embodiment is described.

[0044] by Figure 1 and Figure 2 For example, when the device equipped with the photoelectric anti-tilt detection device is activated, when the bottom of the base 1 contacts the contact surface 5, the shielding member 2 that can be extended out of the switch cavity is pressed into the switch cavity by the weight of the device, and the elastic member 4 is compressed and has elastic potential energy. The shielding member 2 blocks the light signal between the transmitting end 31 and the receiving end 32, and the switch circuit 3 controls the operation circuit of the power output device to be turned on. At this time, the user can operate the device to make it run. Figure 3 and Figure 4 For example, when the bottom surface of the base 1 is separated from the contact surface 5, the elastic member 4 releases its elastic potential energy and pushes the shielding member 2 downward out of the switch cavity, so that there is no obstruction between the transmitting end 31 and the receiving end 32, the optical signal is received by the receiving end 32, the switch circuit 3 controls the operation circuit of the power output device to be disconnected, and the device stops working. Figure 5 For example, when the device is tilted, the shielding piece will be ejected from the opening on one side under the action of the spring, so that there is no obstruction between the transmitting end 31 and the receiving end 32, the optical signal is received by the receiving end 32, the switch circuit 3 controls the operating circuit of the power output device to be disconnected, and the device stops working.

[0045] In one embodiment, referring to Figure 1 、 Figure 3 and Figure 5, the direction in which the transmitting end 31 points to the receiving end 32 is the first direction, the shielding member 2 extends in a direction perpendicular to the first direction and parallel to the bottom surface of the base 1, and the multiple elastic members 4 are arranged along the extension direction of the shielding member 2. When the shielding member 2 is in the shape of a long plate, the multiple elastic members 4 thereon are arranged along the extension direction of the shielding member 2. This arrangement can ensure that the shielding member 2 can be evenly stressed at different tilt angles, thereby improving the overall sensitivity and response speed. In particular, multiple groups of transmitting ends 31 and receiving ends 32 can also be arranged along the extension direction of the shielding member 2. When the device is tilted, the displacement of the shielding member 2 will affect the optical signal transmission between the transmitting end 31 and the receiving end 32 closest to the edge, ensuring that the system can detect the tilting state in time. In addition, setting up multiple groups of transmitting ends 31 and receiving ends 32 can also improve the fault tolerance of the photoelectric anti-dumping detection device when judging that a dumping occurs.

[0046] In one embodiment, referring to Figures 6 to 10 The shielding member 2 includes a foot portion 21, a shielding member 22, and a rotating member 23. The rotating member 23 is located at a side edge of the foot portion 21 and is hinged to the bottom surface of the base 1. The shielding member 2 can rotate along the hinge between the rotating member 23 and the bottom surface of the base 1. The shielding member 22 is located at the upper end of the foot portion 21 and is movably positioned between the transmitting end 31 and the receiving end 32. The lower end of the foot portion 21 is provided with an arcuate surface for contacting the contact surface 5. In this embodiment, to simplify the structure of the device base 1 and improve the device's ability to sense tilt at various angles, the support foot of the device base 1 is designed to be combined with the shielding member 2. This shielding member 2 includes the foot portion 21, the shielding member 22, and the rotating member 23. The foot portion 21 functions as a support foot for the device. The shielding member 22 is configured to move between the transmitting end 31 and the receiving end 32 to control the transmission of optical signals. The rotating member 23 is connected to the base 1 and hinged, thereby enabling detection of unidirectional tilt. Furthermore, the lower end of the foot portion 21 is provided with an arc-shaped surface. This design helps to provide better rotation and support between the contact surface 5 when the device is tilted, so that the shielding member 2 can flexibly respond to the tilt change while realizing the support foot function. The shielding portion 22 is located at the upper end of the foot portion 21 and can be movably arranged between the transmitting end 31 and the receiving end 32. This design enables the shielding portion 22 to effectively block the optical signal when tilted, ensuring that the tilt state of the device is detected in time. The rotating portion 23 is provided at one side edge of the foot portion 21 and is hinged to the bottom surface of the base 1, allowing the shielding member 2 to rotate freely around the rotating portion 23, thereby improving the flexibility and response speed of the device. The combination of the shielding member 2 and the hinged structure allows the shielding member 2 to adjust naturally when the device is tilted, providing more flexible anti-dumping detection.

[0047] In one embodiment, referring to Figures 7 to 10The elastic member 4 includes a ball-head gas spring 41, and the shielding member 2 further includes a positioning groove 24 provided at the upper end of the foot portion 21. The positioning groove 24 is away from the rotating portion 23. The positioning groove 24 is provided at the upper end of the foot portion 21. The two ends of the ball-head gas spring 41 are respectively connected to the positioning groove 24 and the inner top surface 12. Figure 7 For example, two positioning slots 24 are arranged at the upper end of the base portion 21, away from the rotating portion 23. The ball heads of the ball-headed gas springs 41 are positioned within these positioning slots 24. The portion of the ball-headed gas spring 41 with the ball head is the movable portion, while the immovable portion is fixedly connected to the inner top surface 12. Because the ball heads are positioned within the positioning slots 24, their spherical surface can rotate within the positioning slots 24. This makes it easier to meet the angular change requirements of the shielding member 2 in this embodiment when one end is fixed and the other end rotates, compared to using other elastic members 4. The ball-headed gas springs 41 also maintain appropriate tension and support during the rotation of the shielding member 2, ensuring that the shielding member 2 can adjust its position freely without losing stability, while also providing good elasticity and support. Furthermore, the elastic properties of the ball-headed gas springs 41 allow them to effectively absorb and cushion the impact forces generated by the equipment's operation, making it less likely to tilt or fall over, while also reducing the risk of damage to the equipment structure. Furthermore, by using multiple ball-headed gas springs 41 to absorb and cushion the impact forces generated by the equipment's operation, the sensitivity and accuracy of fall detection are improved.

[0048] In specific use, such as Figure 11 As shown, a plurality of photoelectric anti-dumping detection devices of this embodiment are generally arranged on the base 1 of the device, so as to accurately reflect whether the device has dumped from multiple angles, so as to make the dumping detection function more sensitive.

[0049] In one embodiment, referring to Figure 12 , also includes an alarm unit, which is connected to the switch circuit 3. In order to let the equipment management personnel know quickly when the equipment is in danger of tipping over or after it has tipped over, an alarm unit is set in the photoelectric anti-tip detection device of the present invention. The alarm unit is responsible for issuing an alarm when it detects that the equipment is tilted or tipping over, reminding the user to pay attention to the safety of the equipment. The alarm unit is connected to the switch circuit 3. When a tilt or tipping signal is detected, the switch circuit 3 will trigger the alarm unit to issue an audible and visual alarm or other forms of alarm, thereby ensuring that the operator can quickly take measures to prevent accidents. The alarm unit can be designed in a variety of forms, including sound, flashing lights or other visual signals. The use of multiple alarm methods can increase the warning effect of the equipment. Through the solution of this embodiment, when a tilting state occurs, the user can be effectively reminded, reducing the potential risks caused by the tipping of the equipment.

[0050] The utility model also provides a stirring device, such as Figure 11As shown, the device is equipped with the photoelectric anti-dumping device of the present invention. When integrated into the mixing equipment, the device can monitor the equipment's tilt in real time, ensuring safety during operation. If the mixing equipment tilts, the device promptly detects the tilt and issues an alarm through the alarm unit, prompting the operator to take necessary measures to prevent the equipment from tipping over or material leaking.

[0051] The use of this new photoelectric anti-dumping detection device significantly improves the operational safety of mixing equipment, effectively reducing the risk of accidents when handling high-viscosity or large quantities of materials. This new mixing equipment is suitable for food processing, chemical production, building material mixing, and other fields, providing a safer user experience, especially in environments requiring continuous operation and high stability.

[0052] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A photoelectric anti-dumping detection device, characterized in that: include: The base includes a switch cavity, the switch cavity is recessed from the bottom surface of the base toward the interior of the base, and the switch cavity includes an inner side surface; A switch circuit for controlling the working state of the power output device; A photoelectric switch, comprising a transmitter, a receiver, and a shielding member, wherein the transmitter and the receiver are connected to the switch circuit, the transmitter and the receiver are arranged in pairs on the inner side of the switch cavity, and the shielding member is arranged in the switch cavity and movably blocked between the transmitter and the receiver; When tilted, the shielding member extends out of the switch cavity to enable the receiving end to receive the signal from the transmitting end and generate a control signal for controlling the switch circuit.

2. The photoelectric anti-dumping detection device according to claim 1, characterized in that: The switching circuit includes an instruction processing unit, the first connection end of the transmitting end is connected to the first power supply end, the second connection end of the transmitting end is grounded, the first connection end of the receiving end is connected to the first power supply end and the instruction processing unit, and the second connection end of the receiving end is grounded. The instruction processing unit is used to generate a control signal for controlling the switching circuit when the receiving end receives a signal from the transmitting end.

3. The photoelectric anti-dumping detection device according to claim 2, characterized in that: The transmitting end includes a light emitting diode, the positive electrode of the light emitting diode is connected to the first power supply end, and the negative electrode of the light emitting diode is grounded.

4. The photoelectric anti-dumping detection device according to claim 3, characterized in that: The receiving end includes a phototransistor, a collector of the phototransistor is connected to the first power supply end and the instruction processing unit, and an emitter of the phototransistor is grounded.

5. The photoelectric anti-dumping detection device according to claim 1, characterized in that: The photoelectric switch further includes an elastic member, and the switch cavity further includes an inner top surface, which is arranged on a side of the opening cavity away from the bottom surface of the base, and the elastic member connects the inner top surface and the shielding member.

6. The photoelectric anti-dumping detection device according to claim 5, characterized in that: The direction from the transmitting end to the receiving end is a first direction, the shielding member extends in a direction perpendicular to the first direction and parallel to the bottom surface of the base, and the plurality of elastic members are arranged along the extending direction of the shielding member.

7. The photoelectric anti-dumping detection device according to claim 5, characterized in that: The shielding member includes a base portion, a shielding portion and a rotating portion. The rotating portion is provided at one side edge of the base portion and is hinged to the bottom surface of the base. The shielding member can rotate along the hinge between the rotating portion and the bottom surface of the base. The shielding portion is provided at the upper end of the base portion and can be movably provided between the transmitting end and the receiving end. The lower end of the base portion is provided with an arc surface for contacting the contact surface.

8. The photoelectric anti-dumping detection device according to claim 7, characterized in that: The elastic part includes a ball head gas spring, and the shielding part also includes a positioning groove arranged at the upper end of the base foot, the positioning groove is away from the rotating part, the positioning groove is arranged at the upper end of the base foot, and the two ends of the ball head gas spring are respectively connected to the positioning groove and the inner top surface.

9. The photoelectric anti-dumping detection device according to any one of claims 2 to 8, characterized in that: It also includes an alarm unit connected to the switch circuit.

10. A stirring device, characterized in that: The device comprises a photoelectric anti-dumping detection device according to any one of claims 1 to 9.

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