Switch structure applied to sealed container

Abstract

The utility model provides a switch structure applied to a sealed container, which comprises a button, a spring, an input fluted disc, an output fluted disc, an exhaust channel, a guide mechanism, a locking mechanism and a valve plate, the input fluted disc comprises a plurality of input teeth, the output fluted disc comprises output teeth, the input fluted disc and the button synchronously move, and the exhaust channel is communicated with the guide mechanism. The guide mechanism comprises a first guide inclined face and a second guide inclined face, the locking mechanism comprises a first locking groove and a second locking groove, the valve plate is suitable for sealing the exhaust channel, the spring abuts against the position between the output fluted disc and the valve plate, and the button is suitable for driving the input fluted disc to axially move downwards so as to drive the output teeth to retreat from the first locking groove or the second locking groove and then rotate. And the valve plate is pressed to extrude part of air in the sealed container and seal the exhaust channel to form a negative pressure space. By arranging the transmission assembly and the limiting assembly, a user can switch the sealing function and the exhaust function of the sealed container through different pressing strokes of the button.

Description

Technical Field

[0001] This utility model belongs to the field of switch technology, and in particular relates to a switch structure applied to a sealed container. Background Technology

[0002] A sealed container is a holding vessel with a sealed structure that can isolate or control the exchange of gases, liquids, dust, and other substances between its interior and the outside environment. In various applications of sealed containers, such as food storage boxes, thermos flasks, and vacuum storage bags, the performance of their opening and closing mechanisms directly affects the user experience and sealing effect. Existing sealing container opening and closing mechanisms often suffer from problems such as complex operation, unstable sealing performance, and difficulty in quickly switching between sealed and ventilated states. Common switches typically require users to perform multiple steps (such as rotating, pressing, or lifting) to seal or open, resulting in a poor user experience. Some switch structures require multiple presses or adjustments to achieve a seal, requiring users to remember complex operating sequences or apply varying degrees of force, easily leading to misoperation. Furthermore, during the sealing process, excess air inside the container cannot be effectively expelled, making it difficult to create an ideal negative pressure environment, thus affecting the sealing effect and preservation / heat retention performance. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a switch structure for use in sealed containers to meet the needs of users.

[0004] To achieve the above objectives, this utility model provides a switch structure for use in sealed containers, including an actuating component comprising a button and a spring.

[0005] The transmission assembly includes an input gear disk and an output gear disk. The input gear disk includes a plurality of input teeth, and the output gear disk includes output teeth. The input gear disk moves synchronously with the button.

[0006] The switch base includes an exhaust channel suitable for communicating with the inside and outside of a sealed container.

[0007] The limiting component includes a guiding mechanism and a locking mechanism. The guiding mechanism includes a first guide ramp and a second guide ramp, and the locking mechanism includes a first locking groove and a second locking groove.

[0008] A valve plate adapted to seal the exhaust passage, and a spring abutting between the output gear disc and the valve plate.

[0009] The button is adapted to drive the input gear disk to move axially downward, thereby driving the output tooth to rotate after exiting the first locking groove or the second locking groove. The valve plate is pressed to squeeze out part of the air in the sealed container and seal the exhaust channel to form a negative pressure space. The spring is adapted to drive the output gear disk to rotate and move upward. The output tooth switches to engage with the adjacent input tooth. During rotation, the first guide slope is adapted to guide the output tooth to lock in the first locking groove, and the exhaust channel is open; the second guide slope is adapted to guide the output tooth to lock in the second locking groove, and the valve plate keeps the exhaust channel sealed.

[0010] As a preferred embodiment: a central axis L is defined, the central axis L being adapted to pass through the center of the switch base and be perpendicular to the switch base, and the input gear and the output gear are coaxial about the central axis L;

[0011] The output tooth includes a mating inclined surface, which meshes with the output tooth and slides with the first guide inclined surface or the second guide inclined surface.

[0012] The output tooth includes a mating straight surface, the first locking groove includes a first guide straight surface arranged along the axial direction, and the second locking groove includes a second guide straight surface arranged along the axial direction. The mating straight surface slides with the first guide straight surface or the second guide straight surface to guide the output tooth to move axially.

[0013] Preferably, the cover is disposed above the switch base, and the upper surface of the cover is provided with a clearance hole for the button to extend and retract. The limiting components are evenly distributed circumferentially about the central axis L on the inner peripheral wall of the cover.

[0014] Preferably, one of the cover and the base includes a buckle, the other of the cover and the base includes a slot, one of the cover and the base includes a positioning ridge, and the other of the cover and the base includes a positioning groove, wherein the positioning ridge and the positioning groove are axially inserted to guide the buckle and the slot to engage.

[0015] Preferably, the button includes a plurality of circumferentially distributed limiting pins, which are coaxially disposed around the periphery of the input gear plate. The limiting pins reciprocate within the first locking groove to form a circumferential limit between the button and the limiting component.

[0016] Preferably, the button includes a rim perpendicular to the central axis L, the rim being adapted to carry the limiting pin, and the rim abutting against the cover to prevent the button from disengaging from the clearance hole.

[0017] Preferably, the device also includes a transmission carrier, wherein the output gear is integrally formed and disposed at the bottom of the transmission carrier, and the input gear is integrally formed or fixedly connected and disposed at the bottom of the button. The cover is inserted into the transmission carrier to form a radial limit, which facilitates the alignment and engagement of the input teeth and the output teeth, ensures automatic centering of the input gear / output gear, and reduces the assembly accuracy requirements.

[0018] Preferably, one end of the output tooth is connected to the transmission carrier, and the other end of the output tooth is adapted to extend into the first locking groove or the second locking groove.

[0019] Preferably, the valve plate includes a valve plate body and a support column supported below the valve plate body. A support sleeve suitable for supporting the support column is formed in the center of the exhaust channel. The valve plate body is suitable for completely covering the exhaust channel, and the valve plate deforms evenly under force.

[0020] Preferably, the transmission carrier includes an opening, one end of the spring extends into the opening and abuts against the transmission carrier, and the other end of the spring directly abuts against the valve plate body; or, the spring abuts against the valve plate body through a pressure transmission member, one side of the pressure transmission member is in contact with the valve plate body, and the other side of the pressure transmission member is adapted to abut against the spring.

[0021] Preferably, the input gear is a spur gear, the input tooth includes two symmetrically arranged first tooth surfaces and second tooth surfaces, the first tooth surfaces and second tooth surfaces clamp together to form a first included angle α, the output gear is a spur gear, the mating inclined surface and the mating straight surface clamp together to form a second included angle β, α=2β.

[0022] Preferably, in the natural state, the input tooth and the output tooth are not fully engaged.

[0023] The input gear disc is in a high position under the spring force, and the tips of the output teeth are in slight contact (not full engagement). At this time, the tooth grooves of the two are not completely aligned, only forming a "point contact" state, leaving space for "misaligned rotation" when pressed. Specifically, after the button is pressed, the output teeth disengage from the locking mechanism, and the tips of the output teeth gradually "slide" into the tooth grooves of the input gear disc. The mating inclined surface gradually forms a complete engagement with the first tooth surface of the input teeth. The output gear disc rotates under the guidance of the guide mechanism, while the valve plate is compressed and expels air. Due to the circumferential limitation of the input gear disc, the spring drives the output gear disc to rotate upward, and the output teeth slide and engage with the second tooth surface of the adjacent input teeth until the output teeth return to a state of incomplete engagement with the first tooth surface of the adjacent input teeth, completing the circumferential movement. The output gear disc is also suitable for engaging with the locking mechanism along the central axis L under the drive of the spring.

[0024] Preferably, the number of input teeth is twice the number of output teeth, and the number of input teeth is also twice the number of limit pins.

[0025] Preferably, the switch base includes an annular step suitable for supporting the cover, the annular step has the positioning groove and several slots on its vertical surface, the switch base includes several reinforcing ribs disposed below the annular step, the reinforcing ribs are arranged radially, and the support sleeve is disposed in the center of the reinforcing ribs.

[0026] Preferably, the valve body is horn-shaped or spherical in its natural state. The valve body includes an open end and a converging end, with the open end facing the button. This design allows the valve body to effectively gather and guide the airflow below to the exhaust channel during the pressurized exhaust phase, accelerating air discharge, promoting the rapid formation of negative pressure space inside the container, and optimizing the vacuum effect. At the same time, the resetting tendency of the valve body facilitates the smooth reopening of the exhaust channel.

[0027] The beneficial effects of this utility model are:

[0028] 1. Users only need to press the button to drive the input gear plate to move axially downward, which will drive the output gear plate to complete a series of actions such as exiting the locking groove, rotating, and switching meshing teeth. The sealing and ventilation functions of the sealed container can be switched by different pressing strokes. Pressing the button hard will drive the output teeth to lock into the second locking groove to complete the exhaust sealing and form negative pressure. Pressing the button lightly will drive the output teeth to lock into the first locking groove to achieve ventilation.

[0029] 2. During button pressing, the valve plate is compressed and squeezes out the air in the sealed container and seals the exhaust channel. Combined with the synergistic effect of the spring and transmission components, a negative pressure space is efficiently formed. After sealing, the valve plate fit is enhanced by the dual action of the negative pressure inside the container and the spring rebound force, reducing the dependence on the spring. The sealing force increases with the negative pressure, providing long-term leak prevention and meeting the needs of different usage scenarios.

[0030] Third, by using the locking mechanism (first / second locking groove) and the guiding mechanism (first / second guiding inclined surface), the movement of the output gear plate is precisely guided and limited, so that the output gear plate automatically locks into a specific locking position after the action is completed, ensuring that the output gear plate can be stably locked in both the sealing and venting states, and the sealing / opening status is clearly fed back through the physical position. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a switch structure for use in a sealed container, provided by this utility model.

[0032] Figure 2 An exploded view of a switch structure for use in a sealed container, as provided by this utility model.

[0033] Figure 3 A cross-sectional schematic diagram (excluding the spring) of a switch structure for use in a sealed container provided by this utility model.

[0034] Figure 4 A schematic diagram of the structure of the cover provided by this utility model.

[0035] Figure 5 A schematic diagram of the button provided by this utility model.

[0036] Figure 6 A schematic diagram of the structure of the transmission carrier provided by this utility model.

[0037] In the diagram: 101, button; 111, rim; 112, limit pin; 102, spring; 201, input gear; 211, input tooth; 212, first tooth surface; 213, second tooth surface; 202, output gear; 221, output tooth; 222, mating bevel; 223, mating straight surface; 203, transmission carrier; 301, first guide bevel; 302, second guide bevel; 303, first locking groove; 331. First guide surface; 304, second locking groove; 341, second guide surface; 401, switch base; 411, exhaust channel; 412, support sleeve; 413, annular step; 414, positioning groove; 415, slot; 416, reinforcing rib; 402, cover; 421, clearance hole; 422, buckle; 423, positioning rib; 424, clearance groove; 500, valve plate; 501, valve plate body; 502, support column. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to avoid obscuring the present utility model with unnecessary details, only structures and / or processing steps closely related to the solution of this utility model are shown in the drawings, while other details not closely related to this utility model are omitted. Furthermore, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0039] like Figure 1-6The aforementioned switch structure for a sealed container includes an actuating component, a transmission component, a limiting component, a switch base 401, a valve plate 500, a cover 402, and a transmission carrier 203. A central axis L is defined, which is adapted to pass through the center of the switch base 401 and be perpendicular to the switch base 401. The actuating component includes a button 101 and a spring 102. The transmission component includes an input gear 201 and an output gear 202. The input gear 201 includes a plurality of input teeth 211, and the output gear 202 includes output teeth 221. The input gear 201 and the output gear 202 are coaxially arranged about the central axis L. The input teeth 211 are integrally formed or fixedly connected to the bottom of the button 101, and the output gear 202 is integrally formed to the bottom of the transmission carrier 203. The cover 402 is inserted into the transmission carrier 203 to form a radial limit, facilitating the alignment and engagement of the input tooth 211 and the output tooth 221, ensuring automatic centering of the input tooth disk 201 / output tooth disk 202, and reducing assembly accuracy requirements. In its natural state, the input tooth 211 and output tooth 221 are not fully engaged. The switch base 401 includes an exhaust channel 411 suitable for connecting the inside and outside of the sealed container. The cover 402 is positioned above the switch base 401, and its upper surface has a clearance hole 421 for the extension and retraction of the button 101. The limiting components are evenly distributed circumferentially about the central axis L on the inner peripheral wall of the cover 402. The limiting components include a guide mechanism and a locking mechanism. The guide mechanism includes a first guide slope 301 and a second guide slope 302, and the locking mechanism includes a first locking groove 303 and a second locking groove 304. One end of the output tooth 221 is connected to the transmission carrier 203, and the other end of the output tooth 221 is adapted to extend into the first locking groove 303 or the second locking groove 304. The valve plate 500 is adapted to seal the exhaust passage 411, and the spring 102 abuts between the output tooth plate 202 and the valve plate 500.

[0040] The process of achieving air extraction and sealing by pressing button 101 once is as follows: Button 101 is adapted to drive the input gear disk 201 to move axially downward, thereby driving the output tooth 221 to rotate after exiting the first locking groove 303. The valve plate 500 is compressed and squeezes out part of the air in the sealed container and seals the exhaust channel 411 to form a negative pressure space. The spring 102 is deformed under pressure. After the external force is removed, the spring 102 is adapted to drive the output gear disk 202 to rotate and move upward. The output tooth 221 switches to the adjacent input tooth 211 for engagement. During the rotation, the second guide slope 302 is adapted to guide the output tooth 221 to lock in the second locking groove 304, and the valve plate 500 keeps the exhaust channel 411 sealed.

[0041] The process of ventilating by pressing button 101 once is as follows: Button 101 is adapted to drive the input gear disk 201 to move axially downward, thereby driving the output tooth 221 to rotate after disengaging from the second locking groove 304. The valve plate 500 keeps the exhaust passage 411 sealed, and the spring 102 continues to deform under pressure. After the external force is removed, the spring 102 is adapted to drive the output gear disk 202 to rotate and move upward. The output tooth 221 switches to engage with the adjacent input tooth 211. During the rotation, the first guide slope 301 is adapted to guide the output tooth 221 to lock in the first locking groove 303, and the exhaust passage 411 is opened.

[0042] In this embodiment, the output gear 202 is a spur gear, and the output tooth 221 includes a mating inclined surface 222, a mating straight surface 223, and a first included angle β formed by the two. The mating inclined surface 222 is in sliding engagement with the first guide inclined surface 301 or the second guide inclined surface 302. The first locking groove 303 includes a first guide straight surface 331 arranged axially, and the second locking groove 304 includes a second guide straight surface 341 arranged axially. The mating straight surface 223 is in sliding engagement with the first guide straight surface 331 or the second guide straight surface 341 to guide the output tooth 221 to move axially.

[0043] In this embodiment, the input gear 201 is a spur gear. The input teeth 211 include two symmetrically arranged first tooth surfaces 212 and second tooth surfaces 213, which clamp to form a first included angle α. α = 90°, β = 45°, 2β. The number of input teeth 211 is twice the number of output teeth 221.

[0044] In this embodiment, the input gear disk 201 is in a high position under the elastic force of the spring 102, and the tips of the output teeth 221 are in slight contact with each other (not fully engaged). At this time, the tooth grooves of the two are not completely aligned, only forming a "point contact" state, leaving space for "misaligned rotation" when pressed. Specifically, when the button 101 is pressed, after the output teeth 221 disengage from the locking mechanism, the tips of the output teeth 221 gradually "slide" into the tooth grooves of the input gear disk 201, and the inclined surface 222 gradually forms a complete engagement with the first tooth surface 212 of the input teeth 211. The output gear disk 202 rotates under the guidance of the guide mechanism, and at the same time, the valve plate 500 is pressed and squeezes out air. Because the input gear disk 201 is circumferentially limited, the spring 102 drives the output gear disk 202 to rotate upwards. The output tooth 221 slides and engages with the second tooth surface 213 of the adjacent input tooth 211 until the output tooth 221 returns to a state of partial engagement with the first tooth surface 212 of the adjacent input tooth 211, thus completing the circumferential movement. The output gear disk 202 is also adapted to engage with the locking mechanism along the central axis L under the drive of the spring 102.

[0045] In this embodiment, the button 101 includes a perimeter 111 perpendicular to the central axis L. The perimeter 111 is adapted to support a plurality of circumferentially distributed limiting pins 112. The perimeter 111 abuts against the cover 402 to prevent the button 101 from disengaging from the clearance hole 421. The limiting pins 112 are coaxially disposed on the periphery of the input gear disk 201. The limiting pins 112 reciprocate within the first locking groove 303 to form a circumferential limit between the button 101 and the limiting component. The number of input teeth 211 is twice the number of limiting pins 112, and each limiting pin 112 corresponds to a first limiting groove.

[0046] In this embodiment, the valve plate 500 includes a valve plate body 501 and a support column 502 supported below the valve plate body 501. A support sleeve 412 suitable for supporting the support column 502 is formed in the center of the exhaust channel 411. The valve plate body 501 is suitable for completely covering the exhaust channel 411, and the valve plate 500 deforms evenly under force. The transmission carrier 203 includes an opening, one end of the spring 102 extends into the opening and abuts against the transmission carrier 203, and the other end of the spring 102 directly abuts against the valve plate body 501. The valve plate body 501 is trumpet-shaped or spherical in its natural state. The valve plate body 501 includes an open end and a constricted end. The open end is set towards the button 101. This design is beneficial for the valve plate body 501 to effectively gather and guide the air flow below to the exhaust channel 411 during the pressurized exhaust stage, accelerate the air discharge, promote the rapid formation of negative pressure space in the container, optimize the vacuum effect, and at the same time, the reset tendency of the valve plate body 501 is conducive to the smooth reopening of the exhaust channel 411.

[0047] In this embodiment, the switch base 401 includes an annular step 413 adapted to support the cover 402. The annular step 413 has a positioning groove 414 and several slots 415 on its vertical surface. The switch base 401 includes several reinforcing ribs 416 disposed below the annular step 413. The reinforcing ribs 416 are arranged radially, and the support sleeve 412 is disposed in the center of the reinforcing ribs 416. The cover 402 includes a buckle 422, a positioning ridge 423, and a clearance groove 424. The positioning ridge 423 and the positioning groove 414 are axially inserted to guide the buckle 422 and the slots 415 to engage. The clearance groove 424 is adapted to provide deformation space for the cover 402 during the engagement process.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A switch structure applied to a sealed container, characterized in that, include The actuating components include a button and a spring. The transmission assembly includes an input gear disk and an output gear disk. The input gear disk includes a plurality of input teeth, and the output gear disk includes output teeth. The input gear disk moves synchronously with the button. The switch base includes an exhaust channel suitable for communicating with the inside and outside of a sealed container. The limiting component includes a guiding mechanism and a locking mechanism. The guiding mechanism includes a first guide ramp and a second guide ramp, and the locking mechanism includes a first locking groove and a second locking groove. A valve plate adapted to seal the exhaust passage, and a spring abutting between the output gear disc and the valve plate. The button is adapted to drive the input gear disk to move axially downward, thereby driving the output tooth to rotate after exiting the first locking groove or the second locking groove. The valve plate is pressed to squeeze out part of the air in the sealed container and seal the exhaust channel to form a negative pressure space. The spring is adapted to drive the output gear disk to rotate and move upward. The output tooth switches to engage with the adjacent input tooth. During rotation, the first guide slope is adapted to guide the output tooth to lock in the first locking groove, and the exhaust channel is open; the second guide slope is adapted to guide the output tooth to lock in the second locking groove, and the valve plate keeps the exhaust channel sealed.

2. The switch structure applied to a sealed container according to claim 1, characterized in that, Define a central axis L, which is adapted to pass through the center of the switch base and be perpendicular to the switch base, and the input gear and the output gear are coaxial about the central axis L; The output tooth includes a mating inclined surface, which meshes with the output tooth and slides with the first guide inclined surface or the second guide inclined surface. The output tooth includes a mating straight surface, the first locking groove includes a first guide straight surface arranged along the axial direction, and the second locking groove includes a second guide straight surface arranged along the axial direction. The mating straight surface slides with the first guide straight surface or the second guide straight surface to guide the output tooth to move axially.

3. The switch structure applied to a sealed container according to claim 2, characterized in that, The device includes a cover disposed above the switch base, the upper surface of which has a clearance hole for the button to extend and retract, and the limiting components are evenly distributed circumferentially on the inner peripheral wall of the cover about the central axis L.

4. The switch structure applied to a sealed container according to claim 3, characterized in that, One of the cover and the base includes a buckle, the other of the cover and the base includes a slot, one of the cover and the base includes a positioning ridge, and the other of the cover and the base includes a positioning groove. The positioning ridge and the positioning groove are axially inserted to guide the buckle and the slot to engage.

5. A switch structure for use in a sealed container according to claim 4, characterized in that, The button includes several circumferentially distributed limiting pins, which are coaxially disposed around the periphery of the input gear plate. The limiting pins reciprocate within the first locking groove to form a circumferential limit between the button and the limiting component.

6. A switch structure for use in a sealed container according to claim 3, characterized in that, It also includes a transmission carrier, the output gear is integrally formed and disposed at the bottom of the transmission carrier, the input gear is integrally formed or fixedly connected and disposed at the bottom of the button, and the cover is inserted into the transmission carrier to form a radial limit.

7. A switch structure for use in a sealed container according to claim 6, characterized in that, One end of the output tooth is connected to the transmission carrier, and the other end of the output tooth is adapted to extend into the first locking groove or the second locking groove.

8. A switch structure for use in a sealed container according to claim 6, characterized in that, The valve plate includes a valve plate body and a support column supported below the valve plate body. A support sleeve suitable for supporting the support column is formed in the center of the exhaust channel. The valve plate body is suitable for completely covering the exhaust channel. The transmission carrier includes an opening, one end of the spring extends into the opening and abuts against the transmission carrier, and the other end of the spring directly abuts against the valve plate body; or, the spring abuts against the valve plate body through a pressure transmission member, one side of the pressure transmission member is in contact with the valve plate body, and the other side of the pressure transmission member is adapted to abut against the spring.

9. A switch structure for use in a sealed container according to claim 2, characterized in that, The input gear is a straight-tooth gear, and the input tooth includes two symmetrically arranged first tooth surfaces and second tooth surfaces. The first tooth surfaces and the second tooth surfaces clamp together to form a first included angle α. The output gear is a straight-tooth gear, and the mating inclined surface and the mating straight surface clamp together to form a second included angle β, where α = 2β. In its natural state, the input tooth and the output tooth are not fully engaged.

10. A switch structure for use in a sealed container according to claim 5, characterized in that, At least one of the following conditions must be met: The number of input teeth is twice the number of output teeth, and the number of input teeth is also twice the number of limit pins; The button includes a rim perpendicular to the central axis L, the rim being adapted to support the limiting pin, and the rim abutting against the cover to prevent the button from disengaging from the clearance hole; The switch base includes an annular step suitable for supporting the cover. The annular step has a positioning groove and several slots on its vertical surface. The switch base includes several reinforcing ribs arranged radially below the annular step. The support sleeve is located at the center of the reinforcing ribs.

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