Bouncing type inner plug cover

Abstract

The utility model belongs to the technical field of inner plug cover structures, and particularly relates to a bouncing type inner plug cover which comprises a shell formed by fixing an outer shell and an inner shell, and a water flowing gap is formed between the outer shell and the inner shell. Comprising a temperature display, and a probe is arranged at the lower end of the temperature display; a lifting shaft is arranged in a middle cavity of the inner shell, and the probe penetrates through the middle of the lifting shaft. A movable part is rotationally arranged on the peripheral side of the probe, a circulating track with a high-position staying part and a low-position staying part which are arranged in a staggered manner is arranged on the side wall of the inner shell, the convex edge of the movable part is limited on the circulating track, and an elastic part acts on the lifting shaft or the temperature display and gives upward moving force to the lifting shaft; a fixing disc is arranged at the lower end of the lifting shaft, and a first sealing ring for sealing a water inlet in the lower end of the water flowing gap is arranged on the periphery of the fixing disc; the lower end of the lifting shaft is also provided with a second sealing ring, the second sealing ring is provided with a skirt edge, and the skirt edge seals a gap between the probe and the lifting shaft. The bouncing type inner plug cover is good in sealing effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of inner plug structure technology, and specifically refers to a spring-loaded inner plug. Background Technology

[0002] An inner stopper is a type of cup lid that is usually installed inside the mouth of the cup. When in use, the drinking spout on the inner stopper is connected to the inside of the cup by flipping the lid or pressing a button. In order to keep the inner stopper clean and hygienic, an outer cover is often installed on the outside of the inner stopper. During use, the outer cover is used as a water cup.

[0003] For example, Chinese patent CN202421115257.7 discloses an inner plug cover with a magnetic structure, comprising a cover body, a water flow channel in the cover body, a sealing plug for sealing the water flow channel and a driving component for driving sliding movement on the cover body, and an elastic component for resetting when driven sliding. The cover body includes a connecting seat and an upper shell that are fixedly connected. The connecting seat has an installation cavity, and the connecting seat is disposed in the installation cavity, forming an annular water flow channel between the side walls of the installation cavity. The bottom of the installation cavity has a water outlet hole communicating with the water flow channel. The elastic component drives the sealing plug to reset and seal the water outlet hole. The upper part of the upper shell extends above the connecting seat, and the upper part of the upper shell is provided with a magnetic component for adsorbing the outer cover. The magnetic component is distributed in an annular shape around the outer periphery of the installation groove. This product features a good spring-loaded structure, allowing users to alternately press the temperature sensor to turn water on and off. However, it also has some drawbacks: the sealing between the long metal tube of the temperature sensor and the cover. The long metal tube is a precision electrical component and cannot be forcibly and tightly fitted with the hollow part of the cover. Therefore, a gap fit or transition fit is preferred between the two. The long metal tube and the cover may not be able to maintain a tight fit and seal the water for a long time. If there is no effective seal, liquid will enter the temperature sensor through the gap between the two, affecting the electrical components. Summary of the Invention

[0004] The purpose of this invention is to provide a spring-loaded inner plug cap with good sealing performance.

[0005] The purpose of this utility model is achieved as follows:

[0006] A spring-loaded inner cap includes a housing, which is composed of an outer shell and an inner shell fixed to each other, with a water flow gap between the outer shell and the inner shell; it includes a temperature display, with a probe disposed at the lower end of the temperature display; a lifting shaft is disposed in the middle cavity of the inner shell, the probe passes through the middle of the lifting shaft and the lower end of the probe protrudes from the lifting shaft and is exposed to the outside; a movable part is rotatably disposed around the probe; the side wall of the inner shell is provided with a circulation track having alternating high-position stopping parts and low-position stopping parts, the protruding edge of the movable part is restricted on the circulation track, and an elastic element acts on the lifting shaft or the temperature display and provides an upward force to the lifting shaft or the temperature display; when the temperature display is pressed repeatedly, the movable part alternately stops at the high-position stopping part or the low-position stopping part, thereby keeping the temperature display and the lifting shaft in a high position or a low position;

[0007] The lower end of the lifting shaft is provided with a fixed plate, and the outer periphery of the fixed plate is provided with a first sealing ring. When the lifting shaft is kept in a high position, the first sealing ring seals the lower end inlet of the water flow gap. When the lifting shaft is kept in a low position, the water flow gap is open.

[0008] A second sealing ring is also provided at the lower end of the lifting shaft. The second sealing ring has a skirt that covers the lower end of the lifting shaft and the outer side of the probe, thereby sealing the gap between the probe and the lifting shaft.

[0009] Furthermore, a third sealing ring is provided around the periphery of the lifting shaft, and the outer shell or inner shell is provided with a cylindrical part. The third sealing ring is always deformed and disposed in the cylindrical part, and the third sealing ring moves with the lifting shaft inside the cylindrical part. A constriction is provided in the upper section of the cylindrical part, and the constriction restricts the lifting shaft from disengaging from the upper part of the cylindrical part.

[0010] Furthermore, the lifting shaft is provided with an annular inner groove, and the third sealing ring is fastened to the annular inner groove.

[0011] Furthermore, the lower end of the lifting shaft is provided with an annular protrusion, and the second sealing ring is sleeved on the annular protrusion; an elastic element is provided between the fixed plate and the outer shell / inner shell, and the elastic element provides a force to the fixed plate to abut against the surface of the second sealing ring.

[0012] Furthermore, a raised rib is provided on the side of the fixed plate that contacts the second sealing ring at the lower end.

[0013] Furthermore, the inner shell includes an upper shell and a lower shell that are fixed to each other. The upper shell has an opening at its upper part, and the temperature indicator is located inside the opening. The upper shell has a circulating track with alternating high-position and low-position dwell sections on its periphery. A pusher is fixedly mounted on the probe. The pusher has a pusher ramp. The rotating part has a driven ramp that cooperates with the pusher ramp. The number of pusher ramps and driven ramps is twice that of the low-position dwell section. As the temperature indicator moves downward, the pusher ramp causes the moving part to rotate in a specific direction and smoothly enter the high-position or low-position dwell section.

[0014] Furthermore, the probe is provided with fasteners to fix the pusher; and the pusher has a raised edge on its side, which extends into the longitudinal groove formed by the low-position dwell part.

[0015] Furthermore, there is a movable gap between the lifting shaft and the pushing member, and the movable member can move up and down within the movable gap.

[0016] Furthermore, a positioning ring is fixed to the end of the lifting shaft, one end of the elastic element abuts against the positioning ring and the other end abuts against the surface of the outer shell or inner shell, and the elastic element provides a force for the lifting shaft to move upward.

[0017] Furthermore, the upper surface of the outer shell is provided with several mounting holes, and a magnet or iron block is placed in the mounting holes. The sealing sheet encapsulates the outer shell and allows the mounting holes and the magnet or iron block to be embedded inside; or, the upper surface of the outer shell is provided with several annular grooves, and annular magnets or iron blocks are placed in the annular grooves. The sealing sheet encapsulates the outer shell and allows the mounting grooves and the magnets or iron blocks to be embedded inside.

[0018] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0019] 1. This utility model features two sealing rings at the lower end of the lifting shaft. The first sealing ring seals the gap between the water flow and the second sealing ring seals the gap between the lifting shaft and the probe. The second sealing ring, in particular, employs a skirt-like covering design to effectively prevent liquid from entering the chamber containing the temperature indicator through the gap between the two, thus avoiding any impact on the electrical components.

[0020] 2. This utility model elastically presses the fixed plate against the second sealing ring, which seals the gap between the fixed plate and the lifting shaft. When the temperature display is in the high position, the second sealing ring seals both the gap between the probe and the lifting shaft, and the gap between the fixed plate and the lifting shaft. Preferably, a raised rib is provided on the lower end of the fixed plate that contacts the second sealing ring. This raised rib is preferably an annular raised rib, and the sealing effect is improved by embedding the raised rib into the second sealing ring.

[0021] 3. The lifting shaft and the pushing component of this utility model have an active gap, and the active component can move up and down within the active gap, which provides space for the active component to move upward. During the process of the pushing component driving the active component to rotate, an active margin is provided, which effectively reduces the jamming of the active component and allows the active component to rotate flexibly, effectively ensuring that the active component stops alternately in the high position and the low position.

[0022] 4. The upper part of the outer shell of this utility model is provided with a magnet or iron block. This structure is used to connect the cup lid to the outside. Preferably, the outer shell is provided with a magnet. The cup lid can be stably placed on the inner stopper and is not easy to fall off by attracting the external cup lid through the magnet. Attached Figure Description

[0023] Figure 1 This is one of the structural schematic diagrams of the temperature display device of this utility model in a high position;

[0024] Figure 2 This is the second schematic diagram of the temperature display device of this utility model in a high position.

[0025] Figure 3 This is a schematic diagram of the internal structure of the temperature display device of this utility model in a high position.

[0026] Figure 4 yes Figure 3 A magnified structural diagram at point A;

[0027] Figure 5 yes Figure 3 A magnified structural diagram at point B;

[0028] Figure 6 This is one of the structural schematic diagrams of the temperature display device of this utility model in a low position.

[0029] Figure 7 This is the second schematic diagram of the temperature display device of this utility model in a low position.

[0030] Figure 8 This is a schematic diagram of the internal structure of the temperature display device of this utility model in a low position.

[0031] Figure 9 yes Figure 8 A magnified structural diagram at point C;

[0032] Figure 10 yes Figure 8 A magnified structural diagram at point D;

[0033] Figure 11 This is one of the exploded structural diagrams of this utility model;

[0034] Figure 12 yes Figure 11 A magnified structural diagram at point E;

[0035] Figure 13 This is the second exploded structural diagram of this utility model;

[0036] Figure 14 yes Figure 13 A magnified structural diagram at point F.

[0037] In the diagram: 1-outer shell; 10-water flow gap; 11-cylinder section; 111-narrowing; 2-inner shell; 21-upper shell;

[0038] 211-Low-position dwelling section; 212-High-position dwelling section; 218-Sealing plate; 219-Annular groove; 22-Lower shell;

[0039] 29-Magnet; 3-Temperature indicator; 31-Probe; 4-Lifting shaft; 40-Fixed plate; 401-Rib;

[0040] 41-First sealing ring; 42-Second sealing ring; 421-Skirt; 43-Third sealing ring; 44-Fourth sealing ring; 45-Annular flange; 46-Positioning ring; 5-Moving part; 51-Moving part flange; 511-Driven inclined surface;

[0041] 6-Pushing component; 61-Pushing component flange; 611-Pushing ramp; 69-Nut; 9-Spring;

[0042] L - Clearance between the lifting shaft and the pushing component. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1-14 As shown:

[0044] A spring-loaded inner plug includes a housing, which is composed of an outer shell 1 and an inner shell 2 that are fixed to each other. The outer shell 1 and the inner shell 2 are preferably fixed by a threaded connection, which facilitates disassembly and cleaning by the user. A water flow gap 10 is provided between the outer shell 1 and the inner shell 2; it includes a temperature display 3, with a probe 31 fixedly or integrally formed at the lower end of the temperature display 3; a lifting shaft 4 is provided in the middle cavity of the inner shell 2, the probe 31 passes through the middle of the lifting shaft 4 and the lower end of the probe passes through the lifting shaft and is exposed to the outside; a movable part 5 is rotatably provided around the probe 31; the side wall of the inner shell 2 is provided with a circulation track with a high-position stopping part 212 and a low-position stopping part 211 arranged alternately; the protruding edge 51 of the movable part is restricted on the circulation track; the elastic element acts on the lifting shaft or the temperature display and gives the lifting shaft or the temperature display an upward force; when the temperature display 3 is pressed repeatedly, the movable part 5 stops alternately on the high-position stopping part 212 or the low-position stopping part 211, thereby keeping the temperature display 3 and the lifting shaft 4 in a high or low position;

[0045] A fixed plate 40 is provided at the lower end of the lifting shaft 4, and a first sealing ring 41 is provided on the outer periphery of the fixed plate 40. The lifting shaft 4 is held in a high position, and the first sealing ring 41 seals the lower inlet of the water flow gap 10. The lifting shaft is held in a low position, and the water flow gap 10 is open. A second sealing ring 42 is also provided at the lower end of the lifting shaft 4. The second sealing ring 42 is provided with a skirt 421, which covers the lower end of the lifting shaft 4 and the outer side of the probe 31, thereby sealing the gap between the probe 31 and the lifting shaft 4. Preferably, an annular flange 45 is provided at the lower end of the lifting shaft 4, and the second sealing ring 42 is sleeved on the annular flange 45. The annular flange 45 allows the second sealing ring 42 to be stably placed, making the structure more stable. Furthermore, an elastic element is provided between the fixed disk 40 and the outer / inner shell. The elastic element applies force to the fixed disk 40 against the surface of the second sealing ring 42, and the second sealing ring 42 seals the gap between the fixed disk 40 and the lifting shaft 4, thereby ensuring the stability of the sealing structure. Preferably, a raised rib 401 is provided on the side of the lower end of the fixed disk that contacts the second sealing ring. This raised rib 401 is preferably an annular raised rib, and the sealing effect is improved by embedding the raised rib 401 into the second sealing ring 42.

[0046] A third sealing ring 43 is provided around the periphery of the lifting shaft 4. The outer shell or inner shell is provided with a cylindrical portion 11. The third sealing ring 43 is always deformed and positioned in the cylindrical portion 11, moving with the lifting shaft 4 within the cylindrical portion 11. The third sealing ring 43 seals the gap between the lifting shaft 4 and the cylindrical portion 11, ensuring the airtightness of this position and preventing liquid from affecting electrical components through the gap. The lifting shaft 4 is provided with an annular inner groove, and the third sealing ring 43 is clamped onto the annular inner groove. This structure effectively fixes the third sealing ring 43, allowing it to be stably positioned during its up-and-down movement. In fact, the outer shell 1 is also provided with a fourth sealing ring 44, which is used for sealing between the inner cap and the cup body.

[0047] The upper section of the cylinder 11 is provided with a constriction 111, which restricts the lifting shaft 4 from disengaging from the upper part of the cylinder 11. Under normal circumstances, the constriction of the cylinder is not needed and serves as a protective function and a positioning function during installation. The temperature indicator is in a high position and the second sealing ring has been pressed against the shell.

[0048] The inner shell 2 includes an upper shell 21 and a lower shell 22 fixed to each other. The upper shell 21 has an opening at its upper part, and the temperature indicator 3 is located inside the opening. A circulating track with alternating high-position dwell sections 212 and low-position dwell sections 211 is provided around the periphery of the upper shell 21. A pusher 6 is fixedly mounted on the probe 31. The pusher 6 has a push rod with a pushing inclined surface 611. The rotating component 5 has a driven inclined surface 511 that cooperates with the pushing inclined surface 611. The number of pushing inclined surfaces 611 and driven inclined surfaces 511 is twice that of the low-position dwell section. As the temperature indicator 3 moves downward, the pushing inclined surface 611 of the pusher 6 causes the moving component to rotate in a specific direction and smoothly enter the high-position dwell section or the low-position dwell section. The protruding edge 61 of the pusher and the protruding edge 51 of the rotating component are adapted to each other.

[0049] The probe 31 is provided with a fastener, preferably a nut 69. The probe 31 has a threaded portion, and the pusher 6 is fixed by the nut 69. The pusher 6 has a pusher flange 61 on its side, which extends into the longitudinal groove formed by the low-position stopping portion. Preferably, the probe 31 of the temperature display is fitted with a wear-resistant plate, which abuts against the lower surface of the temperature display to protect the temperature display and reduce wear.

[0050] There is a movable gap between the lifting shaft 4 and the pushing component 6, and the movable component 5 can move up and down within the movable gap. Figure 5 and Figure 10 As shown, the gap between the lifting shaft and the pusher is L. The gap L provides space for the moving part to move up and down. During the process of the pusher 3 driving the moving part 5 to rotate, the moving part is given a margin of movement, which effectively reduces the jamming of the moving part and allows the moving part to rotate flexibly. This effectively ensures that the moving part stops alternately in the high position and the low position.

[0051] A positioning ring 46 is fixed to the end of the lifting shaft 4. One end of the elastic element abuts against the positioning ring 46, and the other end abuts against the surface of the outer or inner shell. The elastic element provides an upward force to the lifting shaft 4. As shown in the attached figure, the positioning ring is engaged with the end of the lifting shaft. The positioning ring is used to position the elastic element.

[0052] The upper surface of the outer shell has several mounting holes, each containing a magnet or iron block. A sealing sheet encapsulates the outer shell, housing the mounting holes and the magnets or iron blocks. Alternatively, the upper surface of the outer shell has several annular grooves 219, each containing an annular magnet 29 or iron block. A sealing sheet 218 encapsulates the outer shell, housing the grooves 219 and the magnets 29 or iron blocks. Both methods are acceptable, but it is preferable that the outer shell has magnets 29. These magnets attract the external cup lid, allowing the lid to be stably placed on the inner stopper and preventing it from falling off. The outer shell and sealing sheet are integrally molded, preferably by injection molding. The sealing sheet is a metal part, and the outer shell is a plastic part. The metal sealing sheet and the outer shell are integrally molded by injection molding.

[0053] The elastic element is preferably a common component such as a spring or soft rubber.

[0054] The temperature display unit in this application is an outsourced component, which can be purchased from the corresponding manufacturer according to our required dimensions. This component is not a key point of protection in this application, therefore it is not described in detail. The temperature display unit can be referenced from the prior patent CN202421115257.7. Preferably, the temperature display unit has a mechanical temperature-sensing component, and both the temperature probe and the temperature display unit are externally covered with or made of metal, resulting in higher structural strength and less susceptibility to damage.

[0055] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A spring-loaded inner plug cap, comprising a housing, the housing being composed of an outer shell and an inner shell fixed to each other, with a water flow gap between the outer shell and the inner shell; characterized in that: The device includes a temperature display with a probe at its lower end; a lifting shaft is located in the middle cavity of the inner shell, the probe passes through the middle of the lifting shaft, and its lower end protrudes from the lifting shaft and is exposed; a movable part is rotatably arranged around the probe; the side wall of the inner shell is provided with a circulating track having alternating high and low stopping parts; the protruding edge of the movable part is restricted on the circulating track; an elastic element acts on the lifting shaft or the temperature display, giving the lifting shaft or the temperature display an upward force; when the temperature display is pressed repeatedly, the movable part alternately stops at the high or low stopping parts, thereby keeping the temperature display and the lifting shaft in a high or low position; The lower end of the lifting shaft is provided with a fixed plate, and the outer periphery of the fixed plate is provided with a first sealing ring. When the lifting shaft is kept in a high position, the first sealing ring seals the lower end inlet of the water flow gap. When the lifting shaft is kept in a low position, the water flow gap is open. A second sealing ring is also provided at the lower end of the lifting shaft. The second sealing ring has a skirt that covers the lower end of the lifting shaft and the outer side of the probe, thereby sealing the gap between the probe and the lifting shaft.

2. The spring-loaded inner plug cap according to claim 1, characterized in that: A third sealing ring is provided on the periphery of the lifting shaft, and a cylindrical part is provided on the outer shell or inner shell. The third sealing ring is always deformed and disposed in the cylindrical part. The third sealing ring moves with the lifting shaft inside the cylindrical part. A constriction is provided on the upper section of the cylindrical part, and the constriction restricts the lifting shaft from disengaging from the upper part of the cylindrical part.

3. The spring-loaded inner plug cap according to claim 2, characterized in that: The lifting shaft is provided with an annular inner groove, and the third sealing ring is fastened to the annular inner groove.

4. The spring-loaded inner plug cap according to claim 1, 2, or 3, characterized in that: The lower end of the lifting shaft is provided with an annular protrusion, and the second sealing ring is sleeved on the annular protrusion; an elastic element is provided between the fixed plate and the outer shell / inner shell, and the elastic element gives the fixed plate a force to abut against the surface of the second sealing ring.

5. The spring-loaded inner plug cap according to claim 4, characterized in that: A raised rib is provided on the side of the fixed plate that contacts the second sealing ring at the lower end.

6. The spring-loaded inner plug cap according to claim 1, 2, 3, or 5, characterized in that: The inner shell includes an upper shell and a lower shell that are fixed to each other. The upper shell has an opening at its upper part, and the temperature indicator is located inside the opening. The upper shell has a circulating track with alternating high-position and low-position dwell sections on its periphery. A pusher is fixedly mounted on the probe. The pusher has a pusher ramp. The rotating part has a driven ramp that cooperates with the pusher ramp. The number of pusher ramps and driven ramps is twice that of the low-position dwell section. As the temperature indicator moves downward, the pusher ramp causes the moving part to rotate in a specific direction and enter the high-position or low-position dwell section.

7. The spring-loaded inner plug cap according to claim 6, characterized in that: The probe is equipped with fasteners that fix the pusher; and the pusher has a raised edge on its side that extends into the longitudinal groove formed by the low-position dwell part.

8. The spring-loaded inner plug cap according to claim 6, characterized in that: There is a movable gap between the lifting shaft and the pushing component, and the movable component can move up and down within the movable gap.

9. The spring-loaded inner plug cap according to claim 1, 2, 3, 5, 7, or 8, characterized in that: A positioning ring is fixed at the end of the lifting shaft. One end of the elastic element abuts against the positioning ring, and the other end abuts against the surface of the outer or inner shell. The elastic element provides a force for the lifting shaft to move upward.

10. The spring-loaded inner plug cap according to claim 1, 2, 3, 5, 7, or 8, characterized in that: The upper surface of the outer shell is provided with several mounting holes, and a magnet or iron block is placed in the mounting holes. The sealing sheet encapsulates the outer shell and allows the mounting holes and the magnet or iron block to be built inside; or, the upper surface of the outer shell is provided with several annular grooves, and annular magnets or iron blocks are placed in the annular grooves. The sealing sheet encapsulates the outer shell and allows the mounting grooves and the magnets or iron blocks to be built inside. The outer shell and the sealing sheet are molded as one piece.

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