A leak-proof thermos cup

Abstract

The invention discloses a leak-proof thermos cup, which comprises: a cup body and a cup cover, wherein the cup cover is mounted on the top of the cup body, and the cup cover comprises a water through hole, a key compartment and a water outlet hole, wherein the water through hole is arranged at the bottom of the cup cover, the water outlet hole is arranged at the top of the cup cover, an upper cover is hinged on the top of the cup cover and covers the water outlet hole, the key compartment is separated from the water through hole and the water outlet hole by an arc-shaped baffle, a hook is arranged in the key compartment, the top of the hook is engaged with the edge of the upper cover to achieve sealing of the water outlet hole by the upper cover, a key is arranged adjacent to the hook in the key compartment, a round hole corresponding to the key is opened on the side wall of the cup cover, the key pushes the stainless steel ball in the hook through the control sheet to drive the hook to move, so that the hook is separated from the upper cover, and the upper cover is opened, and the liquid in the cup body flows through the water hole and flows out from the water outlet hole. The invention solves the problem that the existing thermos cup is easy to accidentally touch the switch, causing leakage, and the cover opening action is not beautiful.

Description

Technical Field

[0001] The invention relates to the field of daily necessities, and in particular to a leak-proof thermos cup. Background Art

[0002] At present, there are many types of thermos cups sold on the market, which can be convenient for people to carry hot water when going out. Existing thermos cups are generally divided into screw-on lid type and pop-up lid type. The pop-up lid is more convenient and quicker, and the pop-up lid opening action generally adopts a flip-up action. When opening the lid, water droplets condensed on the lid will occasionally be thrown toward the user. The action of the lid tilting back 180 degrees is not beautiful enough. After the lid is opened, its internal structure is placed in the air in an upward posture, which is easy to fall dust, droplets, etc., which is not conducive to health protection.

[0003] The buttons of existing pop-up thermos cups are generally also provided with a safety mechanism to prevent accidental opening. When users go out with the thermos cup, they often put it in a suitcase or backpack, especially when the thermos cup is placed horizontally or accidentally turned upside down, the button is squeezed by adjacent foreign objects, causing the cup lid to open accidentally and the liquid in the cup to leak. The safety mechanism is generally used to prevent such accidental opening. The safety mechanism is generally a ring type or a sliding button type, or is separated from the button, or is integrated with the button, and it requires the user to perform specific actions other than pressing the button to take effect. The safety must be released before opening the cup lid. If the user forgets to add the safety, especially some female users who like to carry a small thermos cup horizontally in a carry-on bag, forgetting to activate the safety device is likely to cause the liquid in the cup to leak, wet important electronic devices such as mobile phones, tablets or electronic keys, and cause great property losses. Summary of the invention

[0004] To this end, the present invention provides a leak-proof thermos cup to solve the problem that the conventional thermos cup is prone to accidentally touching the switch, causing leaks and an unsightly lid opening action.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The invention discloses a leak-proof thermos cup, which comprises: a cup body and a cup cover, wherein the cup cover is mounted on the top of the cup body, the cup cover comprises a water through hole, a key compartment and a water outlet hole, the water through hole is arranged at the bottom of the cup cover, the water outlet hole is arranged at the top of the cup cover, an upper cover is hinged on the top of the cup cover and covers the water outlet hole, the key compartment is separated from the water through hole and the water outlet hole by an arc-shaped baffle plate, a hook is arranged in the key compartment, the top of the hook is snap-connected with the edge of the upper cover to achieve sealing of the water outlet hole by the upper cover, a key is arranged in the key compartment adjacent to the hook, a round hole corresponding to the key is opened on the side wall of the cup cover, the key pushes the stainless steel ball in the hook through the control sheet to drive the hook to move, so that the hook is separated from the upper cover, the upper cover is opened, and the liquid in the cup body flows through the water hole and flows out from the water outlet hole.

[0007] Furthermore, a mounting plate is provided on the top of the cup cover, and a plurality of hinge seats are provided on the mounting plate. A plurality of long connecting rods and short connecting rods are connected to the hinge seats through pins. Torsion springs are installed at the connections between the long connecting rods and the short connecting rods and the hinge seats. The other ends of the long connecting rods and the short connecting rods are connected to the upper cover. The long connecting rods and the short connecting rods can rotate around the pins to drive the upper cover to move, thereby realizing the opening or closing of the upper cover. A raised sealing rubber gasket is installed on the inner top of the upper cover. When the upper cover is in a closed state, the sealing rubber gasket fits with the water outlet hole on the top of the cup cover to realize the airtightness of the water outlet hole, and a drinking spout is provided adjacent to the water outlet hole.

[0008] Furthermore, under the action of the torsion spring, the short connecting rod and the long connecting rod cause the upper cover to automatically pop open after being disengaged from the hook, and the short connecting rod is in an approximately horizontal state, and the middle part of the short connecting rod contacts the side of the cup cover to limit the upper cover.

[0009] Furthermore, the hook is installed in the key compartment, a first return spring is installed between the hook and the arc-shaped baffle, a recess is provided in the middle of the arc-shaped baffle, a closed raised cavity is provided in the middle of the hook, and the closed raised cavity can be pushed into the recess.

[0010] Furthermore, a hook is provided on the top of the hook, which can be engaged with a coupling groove on the inner wall of the upper cover, a closed raised cavity is provided in the middle of the hook, a plurality of strip-shaped sockets are provided on the side wall opposite to the raised direction of the cavity, and a wedge-shaped elastic reset piece is provided at the bottom of the hook, which fits with the arc-shaped baffle.

[0011] Furthermore, the interior of the cavity in the middle of the hook is shaped like an inverted teardrop, the bottom of the cavity is circular, and it curves in a diffuse arc from the bottom of the cavity upward. The space at the top of the cavity is larger than the bottom of the cavity. A stainless steel ball is placed in the cavity. When the hook is in a vertical state, the stainless steel ball is at the bottom of the cavity. When the hook is tilted, the stainless steel ball rolls into the space at the top of the cavity.

[0012] Furthermore, the middle of the button corresponds to the circular hole opened in the side wall of the cup cover, a control plate is installed on the rear side of the button, support columns are installed on both sides of the control plate, a second reset spring is sleeved on the support column, and the second reset spring is between the button and the arc baffle to push the button to reset.

[0013] Furthermore, there are multiple control sheets, which are evenly spaced and arranged in parallel with each other. The top of each control sheet has a protrusion, which is curved downward from the protrusion to form an arc-shaped groove. The control sheet is inserted into the strip socket on the hook, and the stainless steel ball in the cavity of the hook is pushed by the control sheet when a button is pressed, thereby driving the hook to move.

[0014] Furthermore, a slot is provided on the side wall of the water hole at the bottom of the cup cover, and the tea strainer is installed through the slot.

[0015] Furthermore, a silicone anti-slip layer is provided on the outer wall of the cup body.

[0016] The present invention has the following advantages:

[0017] The invention discloses a leak-proof thermos cup, which achieves tight buckling of the upper cover through a hook, and a cavity is arranged in the middle of the hook. When the cup body is in a vertical state, the stainless steel ball in the cavity is at the bottom of the cavity, and pushing a button can move the hook to separate from the upper cover to realize the cover opening action; when the cup body is tilted, the stainless steel ball in the cavity rolls to the top of the cavity, and pushing the button cannot move the hook, thereby avoiding accidental touch to open the upper cover, and preventing accidental touch to cause liquid in the cup to leak. The hook is arranged in the button compartment, and the parts will not be damaged by long-term immersion in liquid, thereby ensuring the good overall performance of the cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 A schematic diagram of the overall structure of a leak-proof thermos cup provided by an embodiment of the present invention;

[0021] Figure 2 A three-dimensional structural diagram of a leak-proof thermos cup provided by an embodiment of the present invention with its lid in an open state;

[0022] Figure 3 A schematic diagram of the inner structure of an upper cover of a leak-proof thermos cup provided by an embodiment of the present invention;

[0023] Figure 4 A longitudinal cross-sectional view of a spill-proof thermos cup with its lid opened provided by an embodiment of the present invention;

[0024] Figure 5 A longitudinal cross-sectional view of a lid of a leak-proof thermos cup provided by an embodiment of the present invention in a closed state;

[0025] Figure 6 A top view of a cup cover of a leak-proof thermos cup provided by an embodiment of the present invention;

[0026] Figure 7 A cross-sectional three-dimensional structural diagram of a cup cover of a leak-proof thermos cup provided by an embodiment of the present invention;

[0027] Figure 8 A longitudinal cross-sectional view of a spill-proof thermos cup provided by an embodiment of the present invention in a tilted state;

[0028] Fig. 9 A three-dimensional structural diagram of a hook for a leak-proof thermos cup provided by an embodiment of the present invention;

[0029] Fig.10 A cross-sectional structural diagram of a hook for a leak-proof thermos cup provided by an embodiment of the present invention;

[0030] Fig.11 A rear view structural diagram of buttons of a leak-proof thermos cup provided by an embodiment of the present invention;

[0031] Fig.12 A schematic diagram of the bottom structure of a cup cover of a leak-proof thermos cup provided by an embodiment of the present invention;

[0032] In the figure: 1-cup body, 2-cup cover, 3-water hole, 4-button compartment, 5-water outlet, 6-arc baffle, 7-hook, 8-button, 9-stainless steel ball, 10-hinge seat, 11-pin shaft, 12-long connecting rod, 13-short connecting rod, 14-sealing rubber pad, 15-drinking spout, 16-first return spring, 17-cavity, 18-hook, 19-card slot, 20-strip jack, 21-elastic return member, 22-control sheet, 23-support column, 24-raised part, 25-arc groove, 26-tea separator, 27-upper cover DETAILED DESCRIPTION

[0033] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example

[0035] The present embodiment discloses a leak-proof thermos cup, the leak-proof thermos cup comprises: a cup body 1 and a cup cover 2, the cup cover 2 is mounted on the top of the cup body 1, the cup cover 2 comprises a water through hole 3, a button compartment 4 and a water outlet 5, the water through hole 3 is arranged at the bottom of the cup cover 2, the water outlet 5 is arranged at the top of the cup cover 2, an upper cover 27 is hinged on the top of the cup cover 2 and covers the water outlet 5, the button compartment 4 is isolated from the water through hole 3 and the water outlet 5 by an arc-shaped baffle 6, a hook 7 is arranged in the button compartment 4, the top of the hook 7 is snap-fitted with the edge of the upper cover 27 to achieve sealing of the water outlet 5 by the upper cover 27, a button 8 is arranged adjacent to the hook 7 in the button compartment 4, a round hole corresponding to the button 8 is opened on the side wall of the cup cover 2, the button 8 pushes the stainless steel ball 9 in the hook 7 through the control sheet 22 to drive the hook 7 to move, so that the hook 7 is separated from the upper cover 27, and the upper cover 27 is opened, and the liquid in the cup body 1 flows through the water hole 3 and flows out from the water outlet 5.

[0036] The top of the cup cover 2 is provided with a mounting plate, and a plurality of hinged seats 10 are provided on the mounting plate. In this embodiment, there are three hinged seats 10, and they are arranged in a "pin" shape. Two long connecting rods 12 and a short connecting rod 13 are connected to the hinged seat 10 through a pin 11, and the other ends of the long connecting rod 12 and the short connecting rod 13 are connected to the upper cover 27. Torsion springs are installed at the connection between the long connecting rod 12 and the short connecting rod 13 and the hinged seat 10. The torsion springs can rotate the long connecting rod 12 and the short connecting rod 13 under the action of elastic force. At the same time, damping devices are connected to the long connecting rod 12 and the short connecting rod 13, which can prevent the upper cover 27 from being too quickly opened under the action of the torsion spring, so as to realize the opening or closing of the upper cover 27. In the closed state, the upper cover 27 has a 7mm high accommodation space between it and the top of the cup cover 2, which can allow the long connecting rod 12 and the short connecting rod 13 to be stored in the upper cover 27. Under the action of the torsion spring, the short connecting rod 13 and the long connecting rod 12 make the upper cover 27 break away from the hook 7 and automatically pop open. The short connecting rod 13 is in a nearly horizontal state, and the middle part of the short connecting rod 13 contacts the side of the cup cover 2 to limit the upper cover 27.

[0037] A raised sealing pad 14 is installed on the top of the upper cover 27. Since the long connecting rod 12 and the short connecting rod 13 occupy space, in order to avoid interference between the connecting rod and the sealing pad 14, the water outlet hole 5 of the thermos cup and the sealing pad 14 are made into a two-sided split type. The water outlet hole 5 is elliptical, and the two foci of the ellipse are the same as the user's drinking direction. Such a design facilitates water vapor exchange and makes water flow out more smoothly. When the upper cover 27 is closed, the sealing pad 14 fits the water outlet hole 5 on the top of the cup cover 2 to achieve the sealing of the water outlet hole 5. A drinking spout 15 is arranged adjacent to the water outlet hole 5. After the liquid in the cup flows out of the water outlet hole 5, it flows into the mouth of the person along the drinking spout 15.

[0038] The thermos cup hook 7 is designed in a special shape, and its hook head can be displaced under the action of external force to release the cup cover 2. The hook 7 is installed in the key compartment 4, and a first reset spring 16 is installed between the hook 7 and the arc baffle 6. A recessed portion is provided in the middle of the arc baffle 6. The middle of the hook 7 has a closed raised cavity 17, and the closed raised cavity 17 can be pushed into the recessed portion. A hook 18 is provided on the top of the hook 7, and the hook 18 can be engaged with a clamping groove 19 on the inner side wall of the upper cover 27. A closed raised cavity 17 is provided in the middle of the hook 7, and a plurality of strip-shaped plug holes 20 are provided on the side wall opposite to the raised direction of the cavity 17. A wedge-shaped elastic reset member 21 is provided at the bottom of the hook 7, and the elastic reset member 21 fits the arc baffle 6. After the hook 7 is pushed and the external force is released, it is reset under the elastic force of the first reset spring 16 and the wedge-shaped elastic reset member 21 at the bottom of the hook 7 to restore the original state.

[0039] The cavity 17 in the middle of the hook 7 is in the shape of an inverted water drop. The bottom of the cavity 17 is circular, and it is curved in a diffuse arc from the bottom of the cavity 17 upward. The space at the top of the cavity 17 is larger than the bottom of the cavity 17. A stainless steel ball 9 is placed in the cavity 17. When the hook 7 is in the vertical state, the stainless steel ball 9 is at the bottom of the cavity 17. When the hook 7 is tilted, the stainless steel ball 9 rolls into the space at the top of the cavity 17. Due to the effect of gravity, the stainless steel ball 9 is controlled to be located at the bottom of the cavity 17 when the water cup is upright. When the insulation cup body 1 is tilted to an angle greater than a certain angle, the steel ball will roll to the top of the cavity 17. The dividing line of the rolling angle is the angle at which the inner wall of the cavity 17 is tilted to a horizontal posture, and this angle is between 0° and 90°. In this embodiment, the inner angle of the cross section of the cavity 17 is 40°. When the inclination of the cup body 1 is greater than 90-40 / 2=70°, the steel ball is controlled to roll to the top of the cavity 17. By analogy, when the inner angle of the cross section of the cavity 17 is 60°, the critical angle for the steel ball to roll down is 90-60 / 2=60°.

[0040] The middle of the button 8 corresponds to the circular hole opened on the side wall of the cup cover 2. A control sheet 22 is installed on the rear side of the button 8. Support columns 23 are installed on both sides of the control sheet 22. A second reset spring is sleeved on the support column 23. The second reset spring is between the button 8 and the arc baffle 6 to push the button 8 to reset. There are multiple control sheets 22, and the multiple control sheets 22 are evenly spaced and arranged in parallel with each other. The top of each control sheet 22 has a protrusion 24, which is curved downward from the protrusion 24 to form an arc groove 25. The control sheet 22 is inserted into the strip jack 20 on the hook 7. When the button 8 is pressed, the stainless steel ball 9 in the cavity 17 of the hook 7 is pushed by the control sheet 22 to drive the hook 7 to move.

[0041] In this embodiment, when the cup body 1 is in a vertical state, the stainless steel ball 9 is at the bottom of the cavity 17. By pressing the button 8 with external force, the raised portion 24 on the control sheet 22 behind the button 8 clamps the stainless steel ball 9 in the arc-shaped groove 25 to prevent the stainless steel ball 9 from sliding and dislocating when the stainless steel ball 9 is pushed. The control sheet 22 pushes the stainless steel ball 9 to move, and the stainless steel ball 9 drives the hook 7 to move. The hook 7 is unhooked from the upper cover 27, and the upper cover 27 pops open. When the cup body 1 is tilted, the stainless steel ball 9 rolls to the top of the cavity 17. When the button 8 is pressed, the control sheet 22 lacks the stainless steel ball 9 to transmit force, and cannot push the hook 7 to move. The hook 7 will not be unhooked from the upper cover 27, and the effect of preventing the upper cover 27 from being opened by accidental touch is achieved.

[0042] The idle stroke of the button 8 is about 2.1mm, the effective push stroke of the button 8 is about 1.9mm, and the total stroke of the button is 4mm. Due to the principle of lever action, the total deformation zone length of the hook 7 is about 36mm, and the distance between the pushed part of the hook 7 and the deformation bending point is about 14mm. Then, the middle part of the hook 7 is pushed by 1.9mm, which will cause the hook 18 at the top of the hook 7 to have a stroke of about 4.9mm. The calculation formula is: 36 / 14*1.9≈4.9. The necessary stroke required for the hook 7 to disengage the cup cover 2 is not more than 3mm (actually about 2.76mm), so when the stroke of the button 8 is 3mm to 4mm (actually about 3.17mm, 2.76*14 / 36+2.1≈3.17), the hook 7 can be effectively disengaged. The distance of the button 8 is also a value that is calculated to make the user feel more comfortable. The stroke of the existing pop-up thermos cup cover opening button 8 on sale is also about 3mm to 4mm.

[0043] A slot is provided on the side wall of the water hole 3 at the bottom of the cup cover 2, and a tea strainer 26 is installed through the slot to effectively filter out tea leaves, making it convenient to drink tea water. A silicone anti-skid layer is provided on the outer wall of the cup body 1 to achieve anti-skid of the cup body 1.

[0044] The embodiment discloses a leak-proof thermos cup, which will not cause the liquid in the cup to leak due to accidental touch. The hook 7 and other components are arranged in the key compartment 4, and the components will not be damaged by long-term immersion in liquid, thereby ensuring the overall good performance of the cup.

[0045] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A leak-proof thermos cup, characterized in that: The leak-proof thermos cup comprises: a cup body and a cup cover, wherein the cup cover is mounted on the top of the cup body, and the cup cover comprises a water through hole, a key compartment and a water outlet hole, wherein the water through hole is arranged at the bottom of the cup cover, and the water outlet hole is arranged at the top of the cup cover, and an upper cover is hinged on the top of the cup cover and covers the water outlet hole, wherein the key compartment is separated from the water through hole and the water outlet hole by an arc-shaped baffle plate, a hook is arranged in the key compartment, and the top of the hook is engaged with the edge of the upper cover to achieve sealing of the water outlet hole by the upper cover, a key is arranged in the key compartment adjacent to the hook, and a round hole corresponding to the key is opened on the side wall of the cup cover, and the key pushes the stainless steel ball in the hook through the control sheet to drive the hook to move, so that the hook is separated from the upper cover, and the upper cover is opened, and the liquid in the cup body flows through the water hole and flows out from the water outlet hole; The interior of the cavity in the middle of the hook is in the shape of an inverted teardrop, the bottom of the cavity is circular, and it curves in a diffuse arc from the bottom of the cavity upward. The space at the top of the cavity is larger than the bottom of the cavity. A stainless steel ball is placed in the cavity. When the hook is in a vertical state, the stainless steel ball is at the bottom of the cavity. When the hook is tilted, the stainless steel ball rolls into the space at the top of the cavity.

2. The anti-spillage thermos cup according to claim 1, characterized in that: A mounting plate is provided on the top of the cup cover, and a plurality of hinge seats are provided on the mounting plate. A plurality of long connecting rods and short connecting rods are connected to the hinge seats through pins. Torsion springs are installed at the connections between the long connecting rods and the short connecting rods and the hinge seats. The other ends of the long connecting rods and the short connecting rods are connected to the upper cover. The long connecting rods and the short connecting rods can rotate around the pins to drive the upper cover to move, thereby realizing the opening or closing of the upper cover. A raised sealing rubber pad is installed on the inner top of the upper cover. When the upper cover is in a closed state, the sealing rubber pad fits with the water outlet hole on the top of the cup cover to realize the airtightness of the water outlet hole. A drinking spout is provided adjacent to the water outlet hole.

3. The anti-spillage thermos cup according to claim 2, characterized in that: The short connecting rod and the long connecting rod, under the action of the torsion spring, cause the upper cover to automatically pop open after being disengaged from the hook, the short connecting rod is in a horizontal state, and the middle part of the short connecting rod contacts the side of the cup cover to limit the upper cover.

4. The anti-spillage thermos cup according to claim 1, characterized in that: The hook is installed in the key compartment, a first reset spring is installed between the hook and the arc baffle, a recess is provided in the middle of the arc baffle, a closed raised cavity is provided in the middle of the hook, and the closed raised cavity can be pushed into the recess.

5. The anti-spillage thermos cup according to claim 4, characterized in that: A hook is provided on the top of the hook, which can be engaged with the engaging groove on the inner wall of the upper cover; a closed raised cavity is provided in the middle of the hook, and a plurality of strip-shaped plug holes are provided on the side wall opposite to the raised direction of the cavity; a wedge-shaped elastic reset piece is provided at the bottom of the hook, and the elastic reset piece fits with the arc-shaped baffle.

6. The anti-spillage thermos cup according to claim 1, characterized in that: The middle of the button corresponds to the circular hole opened on the side wall of the cup cover, a control sheet is installed on the rear side of the button, support columns are installed on both sides of the control sheet, a second reset spring is sleeved on the support column, and the second reset spring is between the button and the arc baffle to push the button to reset.

7. The anti-spillage thermos cup according to claim 6, characterized in that: There are multiple control sheets, which are evenly spaced and arranged in parallel with each other. The top of each control sheet has a protrusion, which is curved downward from the protrusion to form an arc-shaped groove. The control sheet is inserted into the strip-shaped socket on the hook. When a button is pressed, the control sheet pushes the stainless steel ball in the cavity of the hook to drive the hook to move.

8. The anti-spillage thermos cup according to claim 1, characterized in that: A clamping groove is arranged on the side wall of the water through hole at the bottom of the cup cover, and the tea strainer is installed through the clamping groove.

9. The anti-spillage thermos cup according to claim 1, characterized in that: The outer wall of the cup body is covered with a silicone anti-slip layer.

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