A thermos cup cover and a thermos cup that are easy to open

Abstract

This invention relates to an easy-to-open thermos lid and thermos, comprising an outer shell and a plug. An annular actuating ring is provided between the inner wall of the outer shell and the side wall of the plug. The upper part of the actuating ring is fixedly connected to the upper part of the plug. An opening groove is provided on the inner wall of the outer shell, and a protrusion is provided on the outer wall of the actuating ring, which can be engaged with the opening groove. The width of the protrusion is smaller than the width of the opening groove. A vertically arranged vent is provided in the middle of the plug, and a control rod with an outer diameter smaller than the inner diameter of the vent passes through the vent. A stop block is provided at the upper end of the control rod. A stop groove is provided on the plug corresponding to the area covered by the stop block when the control rod rotates one revolution. One side of the stop groove has a smooth bevel. A sealing part is provided at the lower end of the control rod, and an annular sealing ring is attached to the upper side of the sealing part. A transmission part is provided on the inner top surface of the outer shell, which can be rotatably engaged with the top of the control rod. This invention has good sealing performance in the closed state and is easy to open.

Description

Technical Field

[0001] The invention relates to a thermos cup cover, in particular to a thermos cup cover which is easy to open and a thermos cup with the cover. Background Art

[0002] Thermos cups are generally made of ceramic or stainless steel with a vacuum layer to hold water. They have a lid on the top and are tightly sealed. The vacuum insulation layer can delay the heat dissipation of the water or other liquids contained inside to achieve the purpose of heat preservation. The cup body of the existing thermos cup has a good heat preservation effect, but the heat preservation effect of the thermos cup cover is still insufficient. For this reason, someone invented a patent called "a thermos cup cover" (Chinese patent number: 201020188659.1), which includes a cylinder and an end cover. The cylinder consists of a cylinder outer layer, a cylinder inner layer and a cylinder insulation layer located between the inner and outer layers. The end cover consists of an end cover inner layer and an end cover insulation layer. The lower end of the cylinder inner layer and the lower end of the cylinder outer layer are separated by the cylinder insulation layer. The invention has the characteristics of good heat preservation effect and simple structure. However, after the invention is sealed for a period of time, the gas inside it will cool down, resulting in a low internal air pressure, making it difficult to open the cup cover. Summary of the invention

[0003] The invention provides a thermos cup cover which is easy to open, and solves the problem in the prior art that it is difficult to open the cup cover due to inconsistent internal and external pressures.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions: an easy-to-open thermos cup cover, characterized in that it includes an outer shell with an opening facing downward and a plug arranged inside the outer shell, an annular toggle ring is arranged between the inner side wall of the outer shell and the side wall of the plug, the upper part of the toggle ring is fixedly connected to the upper part of the plug, an opening groove is arranged on the inner side wall of the outer shell, a convex block which can be fixed with the opening groove is arranged on the outer side wall of the toggle ring, the width of the convex block is smaller than the width of the opening groove, a vertically arranged air duct is arranged in the middle of the plug, and a control valve with an outer diameter smaller than the inner diameter of the air duct is passed through the air duct The rod has a stopper extending outward to the outside of the upper opening of the air duct at its upper end, and the area covered by the stopper on the plug corresponding to one rotation of the control rod is set as a contact surface, and a gear groove for accommodating the stopper is provided on the contact surface, and an inclined surface smoothly connected to the contact surface is provided on the clockwise side of the bottom of the gear groove; a sealing portion covering the lower opening of the air duct is provided at the lower end of the control rod, and an annular sealing ring made of rubber is attached to the upper side of the sealing portion, and the spacing between the stopper and the annular sealing ring is equal to the spacing between the contact surface and the bottom surface of the plug; a transmission portion is provided on the inner top surface of the outer shell, and the transmission portion can be rotatably engaged with the top of the control rod. When the present invention is put on the thermos cup cover, the outer shell is twisted clockwise. Since the width of the opening groove on the outer shell is larger than the protrusion on the outer wall of the toggle ring, the toggle ring is not subjected to force and remains stationary. The transmission part on the outer shell drives the control rod to rotate. The block on the control rod is now located in the gear slot. After the block rotates clockwise, it moves upward along the inclined surface. The control rod is gradually raised until the block enters the contact surface area. At this time, the sealing part at the bottom of the control rod tightly fits the annular sealing ring at the bottom of the plug to seal the lower opening of the vent. At the same time, the opening groove and the protrusion are engaged to drive the toggle ring to rotate, and the plug rotates synchronously until it is completely tightened with the thermos cup. When opening the present invention, the outer shell is rotated counterclockwise. The outer shell first drives the control rod to rotate, so that the block rotates in the opposite direction and then moves downward and upward along the inclined surface to the gear slot. At this time, the sealing part moves downward, and the lower opening of the vent is opened, connecting the gas in the cup with the outside world. After the internal and external pressures are consistent, the plug can be easily unscrewed. Therefore, the present invention has good airtightness in a closed state, excellent insulation effect, and is easy to open and use.

[0005] Preferably, the side wall of the plug is provided with threads, and the toggle ring is provided with vent holes communicating with each other. The threads for connecting with the cup body are arranged on the side wall of the plug, so that a gap can be arranged between the inner side of the toggle ring and the cup body, and the vent holes on the toggle ring can be connected to the airway to provide exhaust or suction functions. At the same time, the position of the vent holes is concealed, not easily contaminated, and is conducive to keeping clean.

[0006] Preferably, the contact surface is concave, which can accommodate the stopper, thereby reducing the gap between the outer shell and the plug and reducing the thickness of the present invention.

[0007] Preferably, a fixing plate is provided on the control rod and located on the upper side of the stopper, and is used to fix the stopper, thereby improving the strength of the stopper and preventing the stopper from being deformed or even broken due to stress.

[0008] Preferably, the upper end of the fixing plate is provided with a hexagonal prism coaxially arranged with the control rod, and the bottom of the transmission part is provided with a matching hole that can match the hexagonal prism. The control rod is provided with a hexagonal prism, which is rotatably engaged with the matching hole, so that the outer shell and the control rod rotate synchronously, and the structure is simple and reliable.

[0009] Preferably, a limiting ring is provided at the bottom of the outer shell to abut against the bottom of the toggle ring. The limiting ring is provided at the bottom of the outer shell to prevent the toggle ring from falling out of the outer shell.

[0010] Preferably, the number of the opening slots and the protrusions is six and they are arranged at equal intervals, so that the toggle ring is evenly stressed and easy to rotate.

[0011] Preferably, the edge of the bottom of the plug is provided with a heat preservation ring, which will be in squeeze contact with the cup body, thus playing a sealing role and improving the heat preservation effect.

[0012] The present invention also provides a thermos cup, comprising a cup body and a cup cover, characterized in that the cup cover is the thermos cup cover that is easy to open. Since the thermos cup cover that is easy to open has the above technical effects, the thermos cup with the cup cover also has the same technical effects.

[0013] Therefore, compared with the prior art, the present invention has the following characteristics: 1. The control lever is driven to rotate through the outer shell, so that the block rotates in the opposite direction and then moves downward and upward along the inclined surface to the gear groove, so that the sealing part moves downward, and the lower opening of the air duct is opened, so that the gas in the cup is connected with the outside world. After the internal and external pressures are consistent, the plug can be easily unscrewed, which is convenient to open; 2. The sealing part at the bottom end of the control lever tightly presses the annular sealing ring against the bottom of the plug to seal the lower opening of the air duct. At the same time, the opening groove and the protrusion are engaged to drive the toggle ring to rotate, and the plug rotates synchronously until it is completely tightened with the thermos cup, with good airtightness and excellent insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 is a cross-sectional view of the present invention through its axis;

[0015] Attached Figure 2 Yes Figure 1 Section view along AA direction;

[0016] Attached Figure 3 is an exploded schematic diagram of the present invention;

[0017] Attached Figure 4It is a schematic diagram of the structure of the plug and the toggle ring;

[0018] Attached Figure 5 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] Example 1: See Figure 1 , Figure 2 , Figure 3 and Figure 4 , a thermos cup cover that is easy to open, it includes an outer shell 1 with an opening facing downward and a plug 2 arranged inside the outer shell 1, an annular toggle ring 3 is arranged between the inner side wall of the outer shell 1 and the side wall of the plug 2, the upper part of the toggle ring 3 is fixedly connected to the upper part of the plug 2, an opening groove 11 is arranged on the inner side wall of the outer shell 1, a convex block 31 that can be clamped with the opening groove 11 is arranged on the outer side wall of the toggle ring 3, the width of the convex block 31 is smaller than the width of the opening groove 11, a vertically arranged air passage 21 is arranged in the middle of the plug 2, a control rod 4 with an outer diameter smaller than the inner diameter of the air passage 21 is arranged in the air passage 21, and a control rod 4 with an outer diameter smaller than the inner diameter of the air passage 21 is arranged on the upper end thereof, and a The stopper 41 and the area covered by the stopper 41 on the plug 2 corresponding to one rotation of the control rod 4 are set as the contact surface 5, and the contact surface 5 is provided with a gear groove 51 that can accommodate the stopper 41. The bottom clockwise side of the gear groove 51 is provided with an inclined surface 52 smoothly connected to the contact surface 5. The lower end of the control rod 4 is provided with a sealing portion 42 that can cover the lower opening of the air duct 21, and the upper side of the sealing portion 42 is attached with a rubber annular sealing ring 43. The spacing between the stopper 41 and the annular sealing ring 43 is equal to the spacing between the contact surface 5 and the bottom surface of the plug 2. The inner top surface of the outer shell 1 is provided with a transmission portion 12, and the transmission portion 12 can be rotatably engaged with the top of the control rod 4. When the present invention is put on the thermos cup cover, the outer shell is twisted clockwise. Since the width of the opening groove on the outer shell is larger than the protrusion on the outer wall of the toggle ring, the toggle ring is not subjected to force and remains stationary. The transmission part on the outer shell drives the control rod to rotate. The block on the control rod is now located in the gear slot. After the block rotates clockwise, it moves upward along the inclined surface. The control rod is gradually raised until the block enters the contact surface area. At this time, the sealing part at the bottom of the control rod tightly fits the annular sealing ring at the bottom of the plug to seal the lower opening of the vent. At the same time, the opening groove and the protrusion are engaged to drive the toggle ring to rotate, and the plug rotates synchronously until it is completely tightened with the thermos cup. When opening the present invention, the outer shell is rotated counterclockwise. The outer shell first drives the control rod to rotate, so that the block rotates in the opposite direction and then moves downward and upward along the inclined surface to the gear slot. At this time, the sealing part moves downward, and the lower opening of the vent is opened, connecting the gas in the cup with the outside world. After the internal and external pressures are consistent, the plug can be easily unscrewed. Therefore, the present invention has good airtightness in a closed state, excellent insulation effect, and is easy to open and use.

[0021] See Figure 1 , Figure 3 The side wall of the plug 2 is provided with a thread, and the toggle ring 3 is provided with a vent hole 6 that communicates with the inside and outside. The thread for connecting with the cup body is set on the side wall of the plug, so there can be a gap between the inner side of the toggle ring and the cup body, and the vent hole on the toggle ring can be connected to the airway to provide it with exhaust or suction functions. At the same time, the position of the vent hole is set in a hidden position, which is not easy to be contaminated and is conducive to keeping clean.

[0022] See Figure 1 , Figure 4 The contact surface 5 is concave. The contact surface is concave and can accommodate a stopper, which is beneficial to reducing the gap between the outer shell and the plug and reducing the thickness of the present invention.

[0023] See Figure 1 , Figure 3 A fixing plate 44 is provided on the control rod 4 and on the upper side of the stopper 41. The fixing plate is used to fix the stopper, improve the strength of the stopper, and prevent deformation or even breakage due to stress.

[0024] See Figure 1 , Figure 3 The upper end of the fixing plate 44 is provided with a hexagonal prism 45 coaxially arranged with the control rod 4, and the bottom of the transmission part 12 is provided with a matching hole 13 that can match the hexagonal prism 45. The control rod is provided with a hexagonal prism, and the hexagonal prism is rotatably engaged with the matching hole, so that the outer shell and the control rod rotate synchronously, and the structure is simple and reliable.

[0025] See Figure 1 , Figure 5 The bottom of the outer shell 1 is provided with a limiting ring 14 that abuts against the bottom of the toggle ring 3. The bottom of the outer shell is provided with a limiting ring, which can prevent the toggle ring from coming out of the outer shell.

[0026] See Figure 2 There are six opening slots 11 and convex blocks 31, which are arranged at equal intervals. There are six opening slots and convex blocks, which are arranged at equal intervals, so that the toggle ring is evenly stressed and easy to rotate.

[0027] See Figure 1 , Figure 5 The edge of the bottom of the plug 2 is provided with a heat preservation ring 22. The edge of the bottom of the plug is provided with a heat preservation ring, which will be squeezed and contacted with the cup body, which can play a sealing role and improve the heat preservation effect.

[0028] This embodiment also discloses a thermos cup, including a cup body and a cup cover, wherein the cup cover is the above-mentioned thermos cup cover that is easy to open. Since the above-mentioned thermos cup cover that is easy to open has the above-mentioned technical effect, the thermos cup with the cup cover also has the same technical effect. At the same time, since the connection between the cup body and the cup cover belongs to the prior art, it will not be repeated in this embodiment.

[0029] The present invention can be modified in various ways which are obvious to those skilled in the art, and such modifications are not considered to depart from the scope of the present invention. All such modifications which are obvious to those skilled in the art are intended to be included within the scope of the present claims.

Claims

1. A thermos cup cover that is easy to open, characterized in that: The invention comprises an outer shell (1) with an opening facing downward and a plug (2) provided therein, an annular toggle ring (3) being provided between the inner side wall of the outer shell (1) and the side wall of the plug (2), the upper part of the toggle ring (3) being fixedly connected to the upper part of the plug (2), an opening groove (11) being provided on the inner side wall of the outer shell (1), a convex block (31) being fixedly connected to the opening groove (11) being provided on the outer side wall of the toggle ring (3), the width of the convex block (31) being smaller than the width of the opening groove (11), a vertically arranged air passage (21) being provided in the middle part of the plug (2), a control rod (4) having an outer diameter smaller than the inner diameter of the air passage (21) being passed through the air passage (21), a stopper (41) being provided at the upper end thereof extending outward to the outer side of the upper opening of the air passage (21), the plug ( 2) The area covered by the stopper (41) when the upper corresponding control rod (4) rotates one circle is set as a contact surface (5), and a gear groove (51) capable of accommodating the stopper (41) is provided on the contact surface (5), and a bevel (52) smoothly connected to the contact surface (5) is provided on the clockwise side of the bottom of the gear groove (51), and the lower end of the control rod (4) is provided with a sealing portion (42) capable of covering the lower opening of the air passage (21), and a rubber annular sealing ring (43) is attached to the upper side of the sealing portion (42), and the spacing between the stopper (41) and the annular sealing ring (43) is equal to the spacing between the contact surface (5) and the bottom surface of the plug (2), and a transmission portion (12) is provided on the inner top surface of the outer shell (1), and the transmission portion (12) can be rotatably engaged with the top of the control rod (4); The side wall of the plug (2) is provided with a thread, and the toggle ring (3) is provided with a vent hole (6) communicating with the inside and outside; A fixing plate (44) is provided on the control rod (4) and located on the upper side of the stopper (41); The upper end of the fixing plate (44) is provided with a hexagonal prism (45) coaxially arranged with the control rod (4), and the bottom of the transmission part (12) is provided with a matching hole (13) that can match with the hexagonal prism (45).

2. The easy-to-open thermos cup cover according to claim 1, characterized in that: The contact surface (5) is concave.

3. The easy-to-open thermos cup cover according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a limiting ring (14) which abuts against the bottom of the toggle ring (3).

4. The easy-to-open thermos cup cover according to claim 1, characterized in that: There are six opening grooves (11) and six protrusions (31), which are arranged at equal intervals.

5. The easy-to-open thermos cup cover according to claim 1, characterized in that: A heat-insulating ring (22) is provided at the edge of the bottom of the plug (2).

6. A thermos cup, comprising a cup body and a cup cover, characterized in that: The cup cover is the easy-to-open thermal insulation cup cover as described in any one of claims 1 to 5.

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