Electric equipment and roller switch thereof

Abstract

The utility model discloses electric equipment and a roller switch thereof, and relates to the technical field of switch equipment. The roller switch comprises a roller, a switch piece, a transmission assembly and a photoelectric sensor. Wherein the roller is used for being rotatably arranged on electric equipment; the switch piece is used for being movably arranged on electric equipment and is provided with a connecting part, an opening part and a closing part, and the opening part and the closing part are both arranged on the connecting part; the photoelectric sensor is electrically connected to a controlled circuit; the transmission assembly is used for being movably arranged on the electric equipment, the first end of the transmission assembly is in transmission connection with the rolling wheel, the second end of the transmission assembly is in transmission connection with the switch piece, and the transmission assembly is used for driving the switch piece to move along a preset path so that the opening part or the closing part can move to the position between a transmitter and a receiver of the photoelectric sensor. Compared with the prior art, the roller switch has the advantage that the continuous service life of the roller switch is longer.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, and more specifically, to a roller switch. Furthermore, this utility model also relates to an electrical appliance including the aforementioned roller switch. Background Technology

[0002] Currently, there is a type of roller switch on the market that uses a potentiometer to realize the electrical signal function. That is, the resistance is changed by sliding a moving piece on a resistive film to realize the switch, such as a volume switch. The volume can be adjusted by using this roller switch. However, because the resistive film is easily scratched and the resistive film has high requirements for environmental cleanliness, the product has a short lifespan.

[0003] In conclusion, how to extend the service life of roller switches is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a roller switch that has a longer service life compared to related technologies.

[0005] Another objective of this invention is to provide an electrical device that includes the aforementioned roller switch.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A roller switch includes: a roller, a switching element, a transmission assembly, and a photoelectric sensor;

[0008] The roller is used for rotatable installations on electrical equipment;

[0009] The switch is movably disposed on the electrical equipment, and the switch has a connecting part, an opening part, and a closing part, wherein the opening part and the closing part are both disposed on the connecting part;

[0010] The photoelectric sensor is used to be electrically connected to the controlled circuit;

[0011] A transmission assembly is movably disposed on the electrical equipment, and a first end of the transmission assembly is throttle-connected to the roller, and a second end of the transmission assembly is throttle-connected to the switch, for driving the switch to move along a preset path, so that the opening part or the closing part moves between the transmitter and receiver of the photoelectric sensor, thereby turning the controlled circuit on and off.

[0012] Preferably, the switch is an impeller, the connecting part is the impeller core, the closing part is the impeller blade, the opening part is the groove between adjacent blades, and the switch is rotatably mounted on the electrical equipment.

[0013] Preferably, the first end of the roller has a bevel gear segment, the transmission assembly is rotatably mounted on the electrical equipment, and the transmission assembly includes a driven bevel gear and a transmission rod, the driven bevel gear meshing with the bevel gear segment for transmission, one end of the transmission rod being connected to the driven bevel gear, and the other end being connected to the wheel core.

[0014] Preferably, the first end of the roller has a transmission gear segment, the transmission assembly includes a transmission gear and a driven gear, both of which are rotatably mounted on the electrical equipment, the transmission gear segment and the driven gear mesh with the transmission gear, and the driven gear is coaxially connected to the wheel core.

[0015] Preferably, the second end of the roller has a blocking wheel segment, and the peripheral surface of the blocking wheel segment has a plurality of blocking protrusions and a plurality of blocking grooves, and the blocking protrusions and the blocking grooves are evenly arranged alternately around the peripheral surface of the roller.

[0016] It also includes a reset element and a stop rod, the stop rod being slidably disposed on the electrical equipment extending radially along the roller, and the reset element being connected to the stop rod for driving the stop rod to reset.

[0017] Preferably, the roller, the transmission assembly, the reset member, and the blocking rod are all disposed on the support base, so as to be disposed on the electrical equipment via the support base.

[0018] Preferably, the support base has a support groove, a first support ear, and a second support ear, the first support ear and the second support ear are arranged opposite to each other, the roller is located between the first support ear and the second support ear, one end of the roller is rotatably disposed on the first support ear, the other end of the roller is rotatably disposed on the second support ear, the support groove is located between the first support ear and the second support ear and is close to the first support ear, the reset member is disposed in the support groove, and the blocking rod is slidably inserted into the support groove;

[0019] The support base also has a support tube, which is located outside the first support ear and the second support ear and close to the second support ear. The transmission rod is rotatably inserted into the inner cavity of the support tube.

[0020] Alternatively, the support base may also have a support disc sleeve located outside the first support ear and the second support ear, and close to the second support ear, wherein the transmission gear and the driven gear are rotatably disposed in the inner cavity of the support disc sleeve.

[0021] Preferably, the blocking rod has a bullet-shaped structure.

[0022] Preferably, the photoelectric sensor is a grating sensor.

[0023] An electrical device includes a roller switch as described in any of the above claims, wherein the photoelectric sensor is disposed on the printed circuit board of the electrical device.

[0024] The roller switch provided by this utility model has a roller for operation by the user to control the on / off state of the circuit through a transmission component, a switch element, and a photoelectric sensor. Specifically, the photoelectric sensor is installed in the control circuit. In the switch element, the opening and closing parts are connected together by a connecting part. When the switch element moves along a preset path, the closing and opening parts can alternately move between the transmitter and receiver of the photoelectric sensor. When the closing part moves between the transmitter and receiver of the photoelectric sensor, it can block the light emitted by the transmitter to control the conduction of the electrical signal. When the opening part moves between the transmitter and receiver of the photoelectric sensor, the light emitted by the transmitter can be received by the receiver to control the disconnection of the electrical signal.

[0025] To complement this, a transmission component is provided between the roller and the switch to drive the switch to move along a preset path. This component receives the rotation of the roller and outputs rotation or linear movement to the switch, thereby enabling the switch to be driven.

[0026] This roller switch uses a mechanical structure to block or avoid the light from the photoelectric sensor in order to switch the electrical signal on and off. Compared with related technologies, this roller switch has a longer service life. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the first closed state of a specific embodiment provided by this utility model;

[0029] Figure 2 A schematic diagram of the first open state of a specific embodiment provided by this utility model;

[0030] Figure 3 A first front view of a specific embodiment provided by this utility model;

[0031] Figure 4 This is a first side view of a specific embodiment provided by the present utility model;

[0032] Figure 5 A first exploded view of a specific embodiment provided by this utility model;

[0033] Figure 6 This is a first partial front view of the structure of a specific embodiment provided by this utility model;

[0034] Figure 7 A first partial oblique view of the specific embodiment provided by this utility model;

[0035] Figure 8 This is a schematic diagram of the second closed state of a specific embodiment provided by this utility model;

[0036] Figure 9 This is a schematic diagram of the second open state of a specific embodiment provided by the present utility model;

[0037] Figure 10 This is a second front view of a specific embodiment provided by the present utility model;

[0038] Figure 11 This is a second side view of a specific embodiment provided by the present utility model;

[0039] Figure 12 A second exploded view of a specific embodiment provided by this utility model;

[0040] Figure 13 This is a second partial oblique view of a specific embodiment provided by the present utility model;

[0041] Figure 14 This is a second partial structure from another angle, as shown in the specific embodiment provided by this utility model.

[0042] Figure 15 A schematic diagram of the assembly structure of the support base, reset member, and blocking rod provided in a specific embodiment of this utility model;

[0043] Figure 16 for Figure 15 A sectional view.

[0044] Figure label:

[0045] 1-Roller; 111-Bevel gear segment; 121-Transmission gear segment; 12-Suppressor wheel segment; 2-Switch element; 21-Connecting part; 22-Opening part; 23-Closed part; 3-Transmission assembly; 311-Driven bevel gear; 312-Transmission rod; 321-Transmission gear; 322-Driven gear; 4-Photoelectric sensor; 5-Reset element; 6-Suppressor rod; 7-Support base; 71-Support groove; 72-First support ear; 73-Second support ear; 714-Support tube; 724-Support disc sleeve; 8-Printed circuit board. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] The core of this invention is to provide a roller switch that has a longer service life compared to related technologies. Another core aspect of this invention is to provide an electrical device that includes the aforementioned roller switch.

[0048] Please refer to Figure 1 This utility model provides a roller switch, including a roller 1, a switch element 2, a transmission assembly 3, and a photoelectric sensor 4. The roller 1 is rotatably mounted on an electrical device. The switch element 2 is movable and mounted on the electrical device, and has a connecting part 21, an opening part 22, and a closing part 23, both of which are located on the connecting part 21. The photoelectric sensor 4 is electrically connected to the controlled circuit. The transmission assembly 3 is movable and mounted on the electrical device, with its first end connected to the roller 1 and its second end connected to the switch element 2. This drives the switch element 2 to move along a preset path, causing the opening part 22 or the closing part 23 to move between the transmitter and receiver of the photoelectric sensor 4, thereby switching the controlled circuit on and off.

[0049] The roller 1 is operated by the user to control the on / off state of the circuit via the transmission assembly 3, the switch 2, and the photoelectric sensor 4. Specifically, the photoelectric sensor 4 is installed in the control circuit. The opening part 22 and the closing part 23 of the switch 2 are connected together by the connecting part 21. When the switch 2 moves along a preset path, the closing part 23 and the opening part 22 can alternately move between the transmitter and receiver of the photoelectric sensor 4. When the closing part 23 moves between the transmitter and receiver of the photoelectric sensor 4, it can block the light emitted by the transmitter to control the conduction of the electrical signal. When the opening part 22 moves between the transmitter and receiver of the photoelectric sensor 4, the light emitted by the transmitter can be received by the receiver to control the disconnection of the electrical signal.

[0050] In order to drive the switch 2 to move along a preset path, a transmission component 3 is provided between the roller 1 and the switch 2 to receive the rotation of the roller 1 and output rotation or linear movement to the switch 2, so as to realize the driving of the switch 2.

[0051] This roller switch uses a mechanical structure to block or avoid the light from the photoelectric sensor 4 to switch the electrical signal on and off. Compared with related technologies, this roller switch has lower environmental requirements, a longer service life, and lower cost.

[0052] It should be noted that the types of the switch element 2 and the transmission assembly 3 are not limited, as long as the above functions can be achieved. For example, in some specific embodiments, in the switch element 2, the connecting part 21 is a straight rod, the closing part 23 is a protruding structure fixed on the same side of the connecting part 21, and the opening part 22 is a groove on the top of the connecting part 21. The switch element 2 is slidably configured. Correspondingly, the transmission assembly 3 adopts a structure that can accept the rotation of the roller 1 and output linear motion, so that the switch element 2 can be driven to slide under the drive of the roller 1. For example, the transmission assembly 3 may include a gear and a rack. The gear meshes with the roller 1 for transmission, and the rack is slidably configured and meshes with the gear for transmission. The rack is connected to the connecting part 21 of the switch element 2, so that the switch element 2 can be driven to move linearly along a preset path through the transmission assembly 3.

[0053] Based on the above embodiment, the switch 2 is an impeller, the connecting part 21 is the impeller core, the closing part 23 is the impeller blade, the opening part 22 is the groove between adjacent blades, and the switch 2 is used for a rotatable electrical device.

[0054] like Figures 1 to 14 As shown, the switch element 2 is rotatable, and the switch element 2 adopts an impeller. In some specific embodiments, such as... Figures 1 to 7 As shown, the closing portion 23 extends axially along the connecting portion 21, and a plurality of closing portions 23 are arranged evenly and at intervals around the center line of the connecting portion 21. Alternatively, in some other specific embodiments, such as Figures 8 to 14 As shown, the closing part 23 extends radially along the connecting part 21, and several closing parts 23 are evenly and spaced around the center line of the connecting part 21; the output end of the transmission assembly 3 drives the connecting part 21 of the switch member 2 to drive the connecting part 21 to rotate the closing part 23 and the opening part 22. With this configuration, the roller switch is conducive to miniaturization design, and when the roller 1 is pushed, the on and off of the electrical signal can be continuously controlled.

[0055] Based on the above embodiment, the first end of the roller 1 has a bevel gear segment 111, the transmission assembly 3 is rotatably installed on the electrical equipment, and the transmission assembly 3 includes a driven bevel gear 311 and a transmission rod 312. The driven bevel gear 311 meshes with the bevel gear segment 111 for transmission, and one end of the transmission rod 312 is connected to the driven bevel gear 311, and the other end is connected to the wheel core.

[0056] like Figures 1 to 7As shown, the roller 1 extends laterally, and the left end of the roller 1 is a bevel gear segment 111. Correspondingly, the transmission rod 312 extends vertically, and the upper end of the transmission rod 312 is connected to the driven bevel gear 311 by means of key connection or integral molding, and the driven bevel gear 311 engages for transmission. The lower end of the transmission rod 312 is connected to the connecting part 21 in the middle position of the switch 2 by means of key connection or integral molding. In use, the roller 1 is pushed to rotate, and through the meshing of the bevel gear segment 111 and the driven bevel gear 311, the driven bevel gear 311 is driven to rotate about the vertical axis. In turn, the transmission rod 312 drives the switch 2 to rotate about the vertical axis. This configuration is conducive to achieving a miniaturized design while achieving long-distance linkage by adjusting the transmission rod 312.

[0057] Preferred, such as Figures 1 to 7 As shown, the transmission assembly 3, together with the switch 2 extending axially along the connection 21 from the closing part 23, can cooperate with the photoelectric sensor 4 arranged horizontally with the transmitter and receiver to control the on and off of the electrical signal, which is conducive to miniaturization and easy to arrange during use.

[0058] Based on the above embodiment, the first end of the roller 1 has a transmission gear segment 121, and the transmission component 3 includes a transmission gear 321 and a driven gear 322. Both the transmission gear 321 and the driven gear 322 are used for rotatable electrical equipment. The transmission gear segment 121 and the driven gear 322 are meshed with the transmission gear 321 for transmission, and the driven gear 322 is coaxially connected to the wheel core.

[0059] like Figures 8 to 14 As shown, the roller 1 extends laterally, and the left end of the roller 1 is a transmission gear segment 121, such as a spur gear segment or a helical gear segment. The transmission gear 321 is configured to rotate around the lateral axis. The driven gear 322 is connected to the connecting part 21 of the switch element 2 by means of key connection or welding. The center line of the driven gear 322 is collinear with the center line of the switch element 2, and the driven gear 322 and the switch element 2 are configured to rotate around the lateral axis. The transmission gear 321 is located between the driven gear 322 and the transmission gear segment 121 of the roller 1, and the transmission gear 321 meshes with the driven gear 322 and the transmission gear segment 121 of the roller 1. In use, the roller 1 is pushed to rotate, and the driven gear 322 is driven to rotate through the transmission gear 321, thereby driving the switch element 2 to rotate in a lateral position. With this configuration, the roller switch has a compact structure and high reliability.

[0060] Preferred, such as Figures 8 to 14 As shown, the transmission assembly 3, in conjunction with the switch member 2 extending radially along the connection portion 21 from the closing portion 23, is able to control the on / off state of the electrical signal in conjunction with the photoelectric sensor 4 arranged horizontally with the transmitter and receiver.

[0061] Based on the above embodiment, the second end of the roller 1 has a blocking wheel segment 12, the peripheral surface of the blocking wheel segment 12 has a plurality of blocking protrusions and a plurality of blocking grooves, the blocking protrusions and blocking grooves are evenly arranged alternately around the peripheral surface of the roller 1; it also includes a reset member 5 and a blocking rod 6, the blocking rod 6 is used to extend radially along the roller 1 and is slidably disposed on the electrical equipment, the reset member 5 is connected to the blocking rod 6 and is used to drive the blocking rod 6 to reset.

[0062] like Figure 3 , Figure 5 , Figure 6 , Figure 10 , Figure 12 and Figure 13 At the right end of roller 1 is a spur gear-like blocking wheel segment 12. Specifically, blocking protrusions with cross-sectional shapes of trapezoids or rectangles are evenly arranged around the center line of roller 1, and the grooves between adjacent blocking protrusions serve as blocking grooves.

[0063] Correspondingly, the upper end of the reset member 5 is connected to the blocking rod 6, and the reset member 5 can transmit an upward thrust to the blocking rod 6 to drive the blocking rod 6 to reset upward. In use, during the process of pushing the roller 1, the blocking rod 6 can be inserted upward into the blocking groove, and under the pressure of the blocking protrusion, it slides along the circumferential surface of the blocking protrusion and retracts downward into the blocking groove. After passing one blocking protrusion, it will be inserted into the next blocking groove under the push of the reset member 5, thereby achieving the lag feel of the roller 1.

[0064] It should be noted that the type of reset element 5 is not limited, as long as it can achieve the above function. For example, the reset element 5 can be a linear spring, such as... Figure 16 As shown, the reset member 5 is sleeved on the outside of the blocking rod 6, and the upper end of the reset member 5 is fixed to the blocking rod 6, while the lower end can abut against a component connected to the electrical equipment. Thus, under the tension of the reset member 5, the blocking rod 6 is pushed upward to reset. Alternatively, in some other specific embodiments, the reset member 5 may include two magnets of the same pole, one magnet is fixed on the blocking rod 6, and the other magnet is installed on a component connected to the electrical equipment. Thus, under the repulsive force of the reset member 5, the blocking rod 6 is pushed upward to reset.

[0065] Based on the above embodiments, the roller 1, transmission assembly 3, reset member 5, and stop rod 6 are all disposed on the support base 7, so as to be mounted on the electrical equipment via the support base 7; for example Figures 1 to 16 As shown, the roller switch is equipped with a support base 7, on which the roller 1, transmission assembly 3, reset component 5 and stop rod 6 are movably mounted to improve the overall integrity of the roller switch. In use, the mounting base and photoelectric sensor 4 can be placed in the corresponding positions, making the roller switch easy to use.

[0066] Based on the above embodiment, the support base 7 has a support groove 71, a first support ear 72 and a second support ear 73. The first support ear 72 and the second support ear 73 are arranged opposite to each other. The roller 1 is located between the first support ear 72 and the second support ear 73. One end of the roller 1 is rotatably disposed on the first support ear 72 and the other end of the roller 1 is rotatably disposed on the second support ear 73. The support groove 71 is located between the first support ear 72 and the second support ear 73 and is close to the first support ear 72. The reset member 5 is disposed in the support groove 71 and the blocking rod 6 is slidably inserted into the support groove 71.

[0067] like Figures 1 to 16 As shown, the support base 7 has a first support ear 72 protruding upward on the top right side and a second support ear 73 protruding upward on the top left side. The first support ear 72 and the second support ear 73 can be U-shaped plates or arched plates, etc., and through holes are opened on the first support ear 72 and the second support ear 73 to insert the roller 1; and a support groove 71 extending vertically is opened on the top of the support base 7. The support groove 71 is located between the first support base 7 and the second support base 7 and is located on the right side to accommodate the reset member 5 and the blocking rod 6 slidably inserted inside it.

[0068] To cooperate with the transmission assembly 3, which includes a driven bevel gear 311 and a transmission rod 312, as described in the above embodiment, the support base 7 also has a support tube 714. The support tube 714 is located outside the first support ear 72 and the second support ear 73, and close to the second support ear 73. The transmission rod 312 is rotatably inserted into the inner cavity of the support tube 714; specifically, as shown... Figures 1 to 7 As shown, the left side of the support base 7 also has a support tube 714. The support tube 714 is a tube extending vertically, which is used to insert the transmission rod 312 inside. The transmission rod 312 can rotate inside the support tube 714, and the upper and lower ends of the transmission rod 312 extend into the support tube 714 to connect the driven bevel gear 311 and the switch 2.

[0069] To cooperate with the transmission assembly 3, which includes a drive gear 321 and a driven gear 322, in the above embodiment, the support base 7 also has a support disc sleeve 724. The support disc sleeve 724 is located outside the first support ear 72 and the second support ear 73, and close to the second support ear 73. Both the drive gear 321 and the driven gear 322 are rotatably disposed in the inner cavity of the support disc sleeve 724; specifically, as shown... Figures 8 to 14As shown, the left side of the support base 7 also has a support disc sleeve 724. The support disc sleeve 724 is a hollow disc body. The disc body has a large cylindrical cavity with the transverse axis or several small cavities for accommodating the corresponding gears. At least two insertion holes are opened on the left and right walls of the support disc sleeve 724 to insert the two ends of the shaft of the transmission gear 321, the driven gear 322 and the two ends of the shaft of the switch 2. The top and bottom ends of the support disc sleeve 724 have openings so that the top structure of the driven gear 322 extends out of the support disc sleeve 724 to mesh with the transmission gear segment 121 at the left end of the roller 1. The bottom structure of the switch extends out of the support disc sleeve 724 to cooperate with the photoelectric sensor 4 located outside the support base 7 to control the on and off of the electrical signal.

[0070] Based on the above embodiment, the blocking rod 6 has a bullet-shaped structure. With this configuration, the top of the blocking rod 6 contacts the blocking protrusion of the blocking wheel segment 12, thereby improving the smoothness of the sliding engagement between the blocking rod 6 and the blocking wheel segment 12.

[0071] Based on the above embodiments, the photoelectric sensor 4 is a grating sensor. This configuration makes the roller switch easy to lay out, and because it uses a grating sensor with high electromagnetic interference resistance and electrical insulation performance, the roller switch has high reliability.

[0072] In addition to the roller switch mentioned above, this utility model also provides an electrical device that includes the roller switch disclosed in the above embodiments. The photoelectric sensor 4 is disposed on the printed circuit board 8 of the electrical device. For the structure of other parts of the electrical device, please refer to the prior art, which will not be described in detail here.

[0073] It should be noted that the relational terms such as "first" and "second" mentioned above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities; the terms "upper surface, lower surface, top, bottom" and the directional terms "upper, lower, left, right" mentioned above are defined based on the accompanying drawings in the specification.

[0074] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0075] The electrical equipment and its roller switch provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A roller switch, characterized in that, include: Roller (1), switch (2), transmission assembly (3) and photoelectric sensor (4); The roller (1) is used for rotatable installation on electrical equipment; The switch (2) is movably disposed on the electrical equipment, and the switch (2) has a connecting part (21), an opening part (22) and a closing part (23), the opening part (22) and the closing part (23) are both disposed on the connecting part (21). The photoelectric sensor (4) is used to be electrically connected to the controlled circuit; The transmission assembly (3) is movably disposed on the electrical equipment, and the first end of the transmission assembly (3) is connected to the roller (1) and the second end of the transmission assembly (3) is connected to the switch (2) to drive the switch (2) to move along a preset path, so that the opening part (22) or the closing part (23) moves between the transmitter and receiver of the photoelectric sensor (4) to enable the switching of the controlled circuit.

2. The roller switch according to claim 1, characterized in that, The switch (2) is an impeller, the connecting part (21) is the wheel core of the impeller, the closing part (23) is the blade of the impeller, the opening part (22) is the groove between adjacent blades, and the switch (2) is rotatably mounted on the electrical equipment.

3. The roller switch according to claim 2, characterized in that, The first end of the roller (1) has a bevel gear segment (111), the transmission assembly (3) is rotatably mounted on the electrical equipment, and the transmission assembly (3) includes a driven bevel gear (311) and a transmission rod (312). The driven bevel gear (311) meshes with the bevel gear segment (111) for transmission. One end of the transmission rod (312) is connected to the driven bevel gear (311), and the other end is connected to the wheel core.

4. The roller switch according to claim 3, characterized in that, The first end of the roller (1) has a transmission gear segment (121). The transmission assembly (3) includes a transmission gear (321) and a driven gear (322). Both the transmission gear (321) and the driven gear (322) are rotatably mounted on the electrical equipment. The transmission gear segment (121) and the driven gear (322) mesh with the transmission gear (321) for transmission. The driven gear (322) is coaxially connected to the wheel core.

5. The roller switch according to claim 4, characterized in that, The second end of the roller (1) has a blocking wheel segment (12), and the peripheral surface of the blocking wheel segment (12) has a plurality of blocking protrusions and a plurality of blocking grooves, and the blocking protrusions and the blocking grooves are evenly arranged around the peripheral surface of the roller (1) alternately. It also includes a reset member (5) and a stop rod (6), the stop rod (6) being slidably disposed on the electrical equipment extending radially along the roller (1), the reset member (5) being connected to the stop rod (6) for driving the stop rod (6) to reset.

6. The roller switch according to claim 5, characterized in that, The roller (1), the transmission assembly (3), the reset member (5) and the blocking rod (6) are all provided on the support base (7) so as to be provided on the electrical equipment through the support base (7).

7. The roller switch according to claim 6, characterized in that, The support base (7) has a support groove (71), a first support ear (72) and a second support ear (73). The first support ear (72) and the second support ear (73) are arranged opposite to each other. The roller (1) is located between the first support ear (72) and the second support ear (73). One end of the roller (1) is rotatably disposed on the first support ear (72), and the other end of the roller (1) is rotatably disposed on the second support ear (73). The support groove (71) is located between the first support ear (72) and the second support ear (73) and is close to the first support ear (72). The reset member (5) is disposed in the support groove (71), and the blocking rod (6) is slidably inserted into the support groove (71). The support base (7) also has a support tube (714), which is located outside the first support ear (72) and the second support ear (73) and close to the second support ear (73). The transmission rod (312) is rotatably inserted into the inner cavity of the support tube (714). Alternatively, the support base (7) may also have a support disc sleeve (724), which is located outside the first support ear (72) and the second support ear (73) and close to the second support ear (73). The transmission gear (321) and the driven gear (322) are rotatably disposed in the inner cavity of the support disc sleeve (724).

8. The roller switch according to claim 6, characterized in that, The blocking rod (6) has a bullet-shaped structure.

9. The roller switch according to any one of claims 1 to 8, characterized in that, The photoelectric sensor (4) is a grating sensor.

10. An electrical appliance, characterized in that, The roller switch includes any one of claims 1-9, wherein the photoelectric sensor (4) is disposed on the printed circuit board (8) of the electrical equipment.

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