Automatic defrosting system using button unit

Abstract

The present invention relates to an automatic defrosting system using a button unit that can automatically operate a defrosting device with a simple structure without additional installation of a separate complex automatic defrosting device. The automatic defrosting system is configured to operate a button pressing device when a detection value detected by a detection sensor exceeds a preset setting value.

Description

Automatic defrosting system using a button

[0001] The present invention relates to an automatic frost removal system using a button unit, and more specifically, to an automatic frost removal system using a button unit that enables the automatic operation of a defrosting device with only a simple structure without the need to install a separate complex automatic defrosting device.

[0002] Cold storage devices, such as refrigerators, freezers, cold storage warehouses, and cold storage warehouses, are equipment designed to maintain an internal low temperature to keep goods fresh or store them for extended periods. These devices maintain a constant internal temperature using a refrigeration cycle. The refrigeration cycle consists of key components such as a compressor, condenser, expansion valve, and evaporator, and creates a low-temperature environment through the process of absorbing or releasing heat via the phase change of the refrigerant.

[0003] In particular, in a refrigeration cycle, the evaporator performs heat exchange with the air and plays a role in cooling the air by absorbing ambient heat during the evaporation process of the refrigerant. During this process, moisture in the air condenses on the surface of the evaporator, and moisture condensed at low temperatures forms frost. Over time, the frost thickens on the surface of the evaporator, which reduces heat exchange efficiency and degrades the performance of the refrigeration cycle. Therefore, a defrosting process to periodically remove frost is essential for the stable operation of the cold storage system.

[0004] Conventional cold storage devices are configured to perform defrosting at fixed time intervals. This method is structured to interrupt the refrigeration cycle at regular intervals and use a heater to melt frost on the evaporator surface. However, this fixed-cycle method has several problems. First, since the formation and growth rate of frost varies significantly depending on external factors such as the temperature, humidity, and frequency of use inside the storage space, it results in unnecessary energy consumption and a degradation of refrigeration cycle performance. Second, the fixed-cycle method has low operational efficiency because it does not perform defrosting when it is actually needed. This causes an increase in the operating costs of the cold storage device in the long term.

[0005] Accordingly, manual defrosting devices are gaining popularity, allowing users to directly check the frost formation status and activate the device using a manual button if defrosting is deemed necessary. Since these manual defrosting devices operate only when necessary, they prevent unnecessary defrosting. Furthermore, by enabling immediate action when excessive frost buildup causes a rapid decline in cooling efficiency, they are effective in preventing the deterioration of stored product quality and reducing unnecessary power waste.

[0006] However, these conventional technologies require the user to manually press the button, which entails the inconvenience of frequent button presses. Furthermore, since manual button operation involves touching the surface, there is a risk of contamination by bacteria or pollutants. This can be a problem from a hygiene perspective, which is particularly important in environments where food is handled.

[0007] Furthermore, since automatic defrosting programs vary by product, there are difficulties in installing additional automatic defrosting devices when attempting to implement an automatic defrosting function. Consequently, users are unable to utilize automated systems, resulting in significantly reduced convenience and a failure to meet the demand for automatic defrosting capabilities.

[0008] The present invention has been devised in consideration of the above-mentioned problems, and the objective of the present invention is to provide an automatic frost removal system using a button unit that enables the automatic operation of a defrosting device with only a simple structure, without the need to install a separate, complex automatic defrosting device.

[0009] An automatic frost removal system using a button unit according to the present invention for achieving the above objectives is characterized by comprising: a detection sensor that detects frost formed in a cooling system of a low-temperature storage device; a button unit that generates an operation signal by external pressure; a defrosting means that receives the operation signal generated by the button unit and removes the frost formed in the cooling system; a button pressing device that operates to apply pressure to the button unit; a detection sensor that detects frost accumulated in the cooling system; and a control unit that operates the button pressing device when the detection value detected by the detection sensor exceeds a preset value.

[0010] In addition, the button portion is positioned on one side of the interior of the low-temperature storage device, and the button pressing device is positioned on the other side of the interior of the low-temperature storage device to press the button portion.

[0011] In addition, the button pressing device comprises: a housing having an internal empty space, an up-and-down moving part installed to be movable up and down inside the housing, and a pressing part having one side connected to the up-and-down moving part and the other side penetrating the housing and extending toward the button part, wherein when the control unit transmits a control signal to the button pressing device, the up-and-down moving part moves up and down so that the pressing part presses the button part.

[0012] In addition, the above-mentioned vertical moving part comprises a support plate formed to be erected inside the housing, a vertical part installed on one side of the support plate to be movable up and down with a rack gear formed along one side in the longitudinal direction, a rotating part installed on the other side of the support plate to be rotatable with a pinion gear formed on its outer circumference to mesh with the rack gear, and a rotating motor for rotating the rotating part, wherein the rotating motor is characterized by receiving an operation signal generated by the button part, rotating in the forward direction for a predetermined time, and then rotating in the reverse direction for a predetermined time.

[0013] In addition, the housing is positioned to be spaced apart laterally from the button portion, and the pressing portion is characterized by including a horizontal support portion extending horizontally on one side of the vertical moving portion to penetrate the lower side of the housing, and a pressing portion extending downwardly on the outer side of the horizontal support portion located on the upper side of the button portion.

[0014] In addition, the horizontal support member is characterized by being configured to allow for length adjustment.

[0015] In addition, the housing is positioned so as to be spaced above the button portion, and the pressing portion is characterized by extending vertically on one side of the vertical moving portion to penetrate the lower side of the housing.

[0016] In addition, the upper and lower moving part comprises: a rotary motor mounted inside the housing; an eccentric part coupled to the rotary motor and having an eccentric shaft eccentrically positioned in one direction from the center; and an extension part formed in an elongated shape along the longitudinal direction, wherein one side has an insertion hole formed to allow vertical movement with the eccentric shaft inserted, and the other side extends toward the lower side of the housing, wherein the upper side of the pressing part is connected to the extension part and the lower side of the pressing part penetrates the housing and protrudes toward the lower part of the housing, wherein both upper sides of the pressing part have a rotation axis formed to allow rotation on the lower side of the housing, wherein the angle of the extension part is varied according to the position change of the eccentric shaft due to the rotation of the rotary motor, and wherein the pressing part connected to the extension part rotates along the extension part, thereby configuring the lower side of the pressing part to press or not press the button part.

[0017] The automatic frost removal system using a button part according to the present invention described above has the effect of automatically operating a defrosting device with only a simple structure without the need to install a separate complex automatic defrosting device, because when a detection sensor detects frost, the button pressing device is induced to automatically press the button part without the user having to manually press the button part.

[0018] In addition, it simplifies the installation and maintenance of the entire system, reducing costs while significantly improving user convenience.

[0019] In addition, the button section can be automatically operated using a button pressing device, which can replace complex automation devices and has the effect of increasing system efficiency and simplifying maintenance.

[0020] In addition, since only the length of the horizontal support needs to be adjusted regardless of the various shapes or sizes of the low-temperature storage device, it has the effect of being able to flexibly respond even if the position of the button part is not constant.

[0021] In addition, it provides an automated frost removal function, and has the effect of automatically operating the system by automatically pressing the button through the cooperation of the detection sensor, control unit, and button pressing device without the user having to manually press the button.

[0022] FIG. 1 is a schematic diagram illustrating an automatic frost removal system using a button unit according to an embodiment of the present invention.

[0023] FIG. 2 is a schematic diagram illustrating a button pressing device of an automatic frost removal system using a button part according to a first embodiment of the present invention.

[0024] FIG. 3 is a schematic diagram illustrating the vertical movement portion of a button pressing device according to the first embodiment of the present invention.

[0025] FIG. 4 is a schematic diagram illustrating a button pressing device of an automatic frost removal system using a button part according to a second embodiment of the present invention.

[0026] FIG. 5 is a schematic diagram illustrating the interior of a button pressing device according to a second embodiment of the present invention.

[0027] FIG. 6 is a drawing showing a front cross-sectional view of the interior of a button pressing device according to a second embodiment of the present invention.

[0028] FIG. 7 is a drawing showing a side cross-section of the interior of a button pressing device according to a second embodiment of the present invention.

[0029] FIG. 8 is a drawing illustrating the state in which the pressing part of a button pressing device according to the second embodiment of the present invention is moved upward.

[0030] FIG. 9 is a drawing showing the state in which the pressing part of a button pressing device according to the second embodiment of the present invention is rotated downward.

[0031] The present invention may be implemented in various other forms without departing from its technical concept or main features. Accordingly, the embodiments of the present invention are merely examples in all respects and should not be interpreted restrictively.

[0032] Terms such as first, second, etc. may be used to describe various components, but said components should not be limited by said terms.

[0033] The above terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0034] When it is stated that one component is "connected" or "joined" to another component, it should be understood that while it may be directly connected or joined to that other component, there may also be other components in between.

[0035] On the other hand, when it is stated that one component is "directly connected" or "directly coupled" to another component, it should be understood that there are no other components in between.

[0036] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0037] In this application, terms such as "comprising," "having," "having," etc., are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0038] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains.

[0039] Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0040] Hereinafter, in order to provide a detailed description sufficient for a person skilled in the art to easily practice the present invention, the most preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0041]

[0042] FIG. 1 is a schematic diagram illustrating an automatic frost removal system using a button unit according to a first embodiment of the present invention.

[0043] Referring to FIG. 1, an automatic frost removal system using a button unit according to the first embodiment of the present invention includes a detection sensor (10), a control unit (20), a button pressing device (100), a button unit (30), and a defrosting means (40).

[0044] The detection sensor (10) is a sensor that detects frost formed in the cooling system of a low-temperature storage device, such as a freezer. This detection sensor (10) can be implemented in various known ways, and depending on the characteristics of the low-temperature storage device, the operating environment, etc., frost can be detected using optics, ultrasound, resistance, etc. For example, when frost is formed, the physical and thermal properties of the sensor surface change, and through this, the electrical resistance changes, and the frost can be detected by measuring this.

[0045] The control unit (20) receives a detection value, i.e., data, from the detection sensor (10) and compares it with a preset value. The preset value is a reference value that is predefined according to the usage environment, such as frost thickness, temperature change, and electrical change. And when the detection value exceeds the preset value, the control unit (20) sends a signal to the button pressing device (100), which will be described later, to instruct it to operate.

[0046] The button pressing device (100) is designed to operate by applying pressure to the button part (30) according to a signal received from the control part (20), as will be described later.

[0047] The button unit (30) generates an operation signal by external pressure. The button unit (30) can be manually operated by a user by pressing it directly with their hand. Alternatively, the button unit (30) may generate an operation signal by the button pressing device (100) pressing the button unit (30).

[0048] The defrosting means (40) receives an operation signal generated by the button unit (30) and removes frost formed on the cooling system. This defrosting means (40) can be designed in various ways to efficiently perform frost removal. For example, the defrosting means (40) can melt the frost by applying heat to the surface of the cooling system using a heater.

[0049] The present invention has the effect of automatically operating a defrosting device with only a simple structure, without the need for a separate, complex automatic defrosting device to be installed, because when the detection sensor (10) detects frost, the button pressing device (100) is induced to automatically press the button part (30) without the user needing to manually press the button part (30). In addition, it simplifies the installation and maintenance of the entire system, reduces costs, and significantly improves user convenience.

[0050]

[0051] FIG. 2 is a schematic diagram illustrating a button pressing device of an automatic frost removal system using a button part according to a first embodiment of the present invention, and FIG. 3 is a schematic diagram illustrating an up-and-down moving part of a button pressing device according to a first embodiment of the present invention.

[0052] Referring to FIGS. 1 to 3, an automatic frost removal system using a button unit (30) according to a first embodiment of the present invention includes a button pressing device (100). The button unit (30) is positioned on one side of the interior of a low-temperature storage device, and the button pressing device (100) is positioned on the other side of the interior of the low-temperature storage device to press the button unit (30). The button pressing device (100) includes a housing (110), an up-and-down moving unit (120), and a pressing unit (130).

[0053] The housing (110) is formed with an empty space to accommodate parts inside, for example, in the shape of a cuboid, and serves to protect the main parts. An open side of the housing (110) is formed to be covered by a cover (112).

[0054] The vertical movement unit (120) is installed so as to be able to move up and down inside the housing (110). When it receives a control signal from the control unit (20), it moves up and down and operates the button unit (30).

[0055] One side of the pressing part (130) is connected to the vertical moving part (120), and the other side extends through the housing (110) toward the button part (30). The housing (110) is positioned so as to be spaced apart to the side of the button part (30). This pressing part (130) is configured to extend to the exact location of the button part (30) so as to be able to directly press the button part (30).

[0056] Then, when the detection sensor (10) detects frost, the control unit (20) transmits a control signal to the button pressing device (100). The button pressing device (100) operates the vertical movement unit (120) so that the pressing unit (130) presses the button unit (30). The present invention can automatically operate the button unit (30) using the button pressing device (100), thereby replacing complex automation devices and increasing the efficiency of the system and simplifying maintenance.

[0057] The vertical moving part (120) includes a support plate (122), a vertical part (124), a rotating part (126), and a rotary motor (128). The support plate (122) is formed in a wide plate shape and is formed to be erected inside the housing (110). The support plate (122) supports the stable installation and operation of the vertical moving part (120) and serves as a base for other components. A sliding rail (123) designed to allow the vertical part (124) to move smoothly up and down is formed on one side of the support plate (122).

[0058] The vertical section (124) is installed on one side of the support plate (122) so as to be movable up and down. The vertical section (124) moves up and down along the sliding rail (123). A rack gear (125) is formed along one side of the vertical section (124) in the longitudinal direction. The rack gear (125) has gears formed at regular intervals on one side of the vertical section (124) and meshes with the pinion gear (127).

[0059] The rotating part (126) is rotatably installed on the other side of the support plate (122), and a pinion gear (127) is formed on the outer circumference to mesh with the rack gear (125). This rotating part (126) converts the rotational force of the rotary motor (128) into vertical motion to guide the vertical part (124) to move up and down.

[0060] The rotary motor (128) receives a control signal from the control unit (20) and rotates the rotating part (126). That is, when the rotary motor (128) receives an operation signal generated by the button unit (30), it rotates forward for a predetermined time and then rotates backward for a predetermined time. The rotary motor (128) may include, for example, a stepper motor, a servo motor, etc. When the control unit (20) sends a control signal to the rotary motor (128), the rotary motor (128) rotates the rotating part (126). The rotational force of the rotating part (126) engages with the rack gear (125) to move the vertical part (124) up and down.

[0061] The pressing portion (130) includes a horizontal support portion (132) that extends horizontally on one side of the vertical moving portion (120) to penetrate the lower side of the housing (110), and a pressing portion (134) that extends downward on the outer side of the horizontal support portion (132) located on the upper side of the button portion (30).

[0062] The horizontal support member (132) is configured to be adjustable in length. The horizontal support member (132) can be adjusted in length using various structures, such as a sliding method or a rotating method. As such, the length of the horizontal support member (132) can be adjusted according to the position of the button part (30), allowing for universal use. That is, since only the length of the horizontal support member (132) needs to be adjusted regardless of the various shapes or sizes of the low-temperature storage device, it has the effect of being able to respond flexibly even if the position of the button part (30) is not constant.

[0063] In this invention, when the control unit (20) sends a signal to the rotary motor (128), the rotary motor (128) rotates and moves the vertical unit (124) downward. Then, the pressing unit (130) presses the button unit (30), and the defrosting means (40) operates. As such, since the invention provides an automated defrosting function, the system operates automatically by automatically pressing the button unit (30) through the cooperation of the detection sensor (10), the control unit (20), and the button pressing device (100), without the user having to manually press the button.

[0064]

[0065] FIG. 4 is a schematic diagram illustrating a button pressing device of an automatic frost removal system using a button part according to a second embodiment of the present invention, FIG. 5 is a schematic diagram illustrating the interior of a button pressing device according to a second embodiment of the present invention, FIG. 6 is a diagram illustrating a front cross-sectional view of the interior of a button pressing device according to a second embodiment of the present invention, and FIG. 7 is a diagram illustrating a side cross-sectional view of the interior of a button pressing device according to a second embodiment of the present invention.

[0066] Referring to FIGS. 1 and FIGS. 4 to 7, a button pressing device (200) according to a second embodiment of the present invention includes a housing (210), an up-and-down moving part (220), and a pressing part (227).

[0067] The housing (210) is positioned so as to be spaced apart above the button portion (30). The housing (210) includes a main body (212) in which an empty space is formed to accommodate a component inside, and a cover (214) that covers one open side of the main body (212). A through hole (210a) is formed through the lower side of the main body (212).

[0068] The upper and lower moving part (220) includes a rotary motor (222), an eccentric part (224), and an extension part (226). The rotary motor (222) is mounted inside the housing (210) and receives a signal from the control part (20), converts it into rotational force, and rotates the eccentric part (224).

[0069] The eccentric part (224) is configured to rotate while coupled to the rotary motor (222). The eccentric part (224) has an eccentric shaft (225) formed protruding in one direction from its center. The eccentric shaft (225) is formed protruding in the opposite direction to the rotary motor (222). The eccentric shaft (225) is coupled to the rotary motor (222) and generates movement off-center when the rotary motor (222) rotates. This eccentric shaft (225) serves to convert the rotational motion of the rotary motor (222) into linear motion.

[0070] The extension portion (226) is formed in a long shape along the longitudinal direction, with an insertion hole (227) formed on one side so that it can move up and down with the eccentric shaft (225) inserted, and the other side extends in the downward direction of the housing (210).

[0071] The pressing part (227) is extended vertically on one side of the vertical movement part (220) so as to penetrate the lower side of the housing (210). The upper side of the pressing part (227) is connected to the extension part (226), and the lower side of the pressing part (227) penetrates the through hole (210a) of the housing (210) and protrudes to the lower side of the housing (210). Additionally, rotation shafts (232) are formed on both upper sides of the pressing part (227) so as to be rotatable on the lower side of the housing (210). A rotation support part (not shown) is formed on the lower side of the housing (210) to rotatably support the rotation shafts (232). Through these rotation shafts (232), the pressing part (227) is made capable of seesaw motion. That is, the rotation shafts (232) allow the pressing part (227) to rotate freely, thereby inducing seesaw motion of the pressing part (227). At this time, the upper side of the pressing part (230) moves in a seesaw motion along the eccentric axis (225), and the lower side of the pressing part (230) moves in a seesaw motion in the opposite direction of the eccentric axis (225).

[0072]

[0073] FIG. 8 is a drawing showing the state in which the pressing part of the button pressing device according to the second embodiment of the present invention is moved upward, and FIG. 9 is a drawing showing the state in which the pressing part of the button pressing device according to the second embodiment of the present invention is rotated downward.

[0074] Referring to the drawing, the rotary motor (222) operates according to the signal of the control unit (20), and the eccentric shaft (225) performs rotational motion. At this time, since the eccentric shaft (225) has a structure that is eccentric in one direction from the center, its position continuously changes with each rotation. The change in the position of the eccentric shaft (225) adjusts the angle of the extension part (226), and as a result, the extension part (226) is not in a fixed state but has a variable angle. That is, as the eccentric shaft (225) rotates, the angle of the extension part (226) continuously changes. The pressing part (227) is connected to the extension part (226), and the pressing part (227) rotates along the extension part (226) according to the change in the angle of the extension part (226).

[0075] When the angle of the extension part (226) is tilted downward, the lower side of the pressing part (227) presses the button part (30) through the through hole (210a) of the housing (210). Conversely, when the extension part (226) is tilted upward, the lower side of the pressing part (227) moves away from the button part (30) and the pressing is released. That is, depending on the angle of the extension part (226), the lower side of the pressing part (227) presses the button part (30) and is adjusted so that it is not pressed again.

[0076] In this invention, when the control unit (20) sends a signal to the rotary motor (222), the rotary motor (222) rotates and moves the pressing unit (227). Then, the pressing unit (227) presses the button unit (30), and the defrosting means (40) operates. As such, since this invention provides an automated frost removal function, the system operates automatically by automatically pressing the button unit (30) through the cooperation of the detection sensor (10), the control unit (20), and the button pressing device (200), without the user having to manually press the button.

[0077] It will be well understood that the present invention is not limited only to the forms mentioned in the detailed description. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Furthermore, the present invention should be understood to include all variations, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims.

[0078] The present invention relates to an automatic defrosting system using a button unit that allows the defrosting device to be operated automatically with only a simple structure without the need to install a separate, complex automatic defrosting device. It can be widely used by applying it to an automatic defrosting device for low-temperature storage devices, such as refrigerators, freezers, cold storage warehouses, and cold storage warehouses, which maintain the interior at a low temperature to keep stored goods fresh or store them for a long period of time.

Claims

1. A detection sensor for detecting frost formed in the cooling system of a low-temperature storage device; A button unit that generates an operating signal by external pressure; A defrosting means for receiving an operation signal generated by the above button unit and removing frost formed on the cooling system; A button pressing device that operates to apply pressure to the above-mentioned button portion; A detection sensor for detecting frost accumulated in the above cooling system; and An automatic frost removal system using a button unit, characterized by including a control unit that operates the button pressing device when the detection value detected by the detection sensor exceeds a preset value.

2. In Paragraph 1, The above button unit is positioned on one side of the interior of the low-temperature storage device, and An automatic frost removal system using a button part, characterized in that the button pressing device is positioned on the other side inside the low-temperature storage device to press the button part.

3. In Paragraph 2, The above button pressing device is: A housing in which an empty space is formed inside, and A vertical moving part installed to be vertically movable inside the above housing, and One side is connected to the upper and lower movable part, and the other side includes a pressing part that penetrates the housing and extends toward the button part. An automatic frost removal system using a button unit, characterized in that when the control unit transmits a control signal to the button pressing device, the vertical moving unit moves up and down so that the pressing unit presses the button unit.

4. In Paragraph 3, The aforementioned Shanghai East is, A support plate formed to be erected inside the above housing, and A vertical section installed on one side of the above-mentioned support plate to be movable up and down, with a rack gear formed along one side in the longitudinal direction, and A rotating part installed rotatably on the other side of the above support plate, wherein a pinion gear is formed on the outer circumference to mesh with the above rack gear, and It includes a rotary motor that rotates the above-mentioned rotating part, and An automatic frost removal system using a button unit, characterized in that the rotary motor rotates in the forward direction for a predetermined time and then rotates in the reverse direction for a predetermined time when it receives an operation signal generated by the button unit.

5. In Paragraph 3, The above housing is positioned to be spaced apart to the side of the button portion, and An automatic frost removal system using a button part, characterized in that the above-mentioned pressing part includes a horizontal support part extending horizontally on one side of the upper and lower moving part to penetrate the lower side of the housing, and a pressing part extending downwardly on the outer side of the horizontal support part located on the upper side of the button part.

6. In Paragraph 5, An automatic frost removal system using a button unit, characterized in that the horizontal support unit is configured to be adjustable in length.

7. In Paragraph 3, The above housing is positioned so as to be spaced above the button portion, and An automatic frost removal system using a button part, characterized in that the above-mentioned pressing part extends vertically to one side of the above-mentioned moving part so as to penetrate the lower side of the housing.

8. In Paragraph 3, East Shanghai is: A rotary motor mounted inside the above housing; An eccentric part coupled to the above-mentioned rotary motor and having an eccentric shaft so as to be eccentric in one direction from the center; and It is formed in a long shape along the longitudinal direction, with one side having an insertion hole formed so that the eccentric shaft is inserted and can move up and down, and the other side including an extension portion extending in the downward direction of the housing. The upper side of the above pressing part is connected to the extension part, and the lower side of the above pressing part penetrates the housing and protrudes to the lower part of the housing, On both upper sides of the above-mentioned pressing part, a rotation axis is formed so as to be rotatable on the lower side of the housing, and An automatic frost removal system using a button part, characterized in that the angle of the extension part is varied according to the position change of the eccentric shaft due to the rotation of the rotary motor, and the pressing part connected to the extension part is configured to rotate along the extension part so that the lower side of the pressing part presses or does not press the button part.

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