CN112107207A - Self-suction type sealing heat-insulation cover - Google Patents

Abstract

The invention discloses a self-breathing sealing and heat-preserving cover, comprising an outer cover and an inner cover which are press-fitted and fitted, an installation hole is arranged in the middle of the inner cover, an inner plug is clamped and fixed in the installation hole, and a middle part of the inner plug is provided with an installation hole. There is a concave cavity, a closed cavity is formed between the concave cavity and the outer cover, and a sealing mechanism for automatic suction is installed in the cavity. The air chamber and the sealing chamber are separated into independent chambers, the air inlet of the suction chamber is located on the side wall of the inner plug at its corresponding position, and the bottom end surface of the suction chamber is provided with ventilation holes and A fixing hole for fixing the sealing gasket, and a dish-shaped sealing gasket for sealing the ventilation hole is fixedly installed in the fixing hole. The invention changes the structure of the traditional cover body, and through the structure of the closed cavity in the inner plug, the heat exchange between the cup body and the outside air can be reduced, thereby prolonging the heat preservation time. Easy to open.

Description

A self-aspirating sealed thermal insulation cover

Technical field:

The invention relates to the field of thermal insulation and sealing cover, and mainly relates to a self-aspirating type sealing thermal insulation cover.

Background technique:

At present, although the thermal insulation cover on the market adopts a double-layer structure and a sealing structure, which has a certain thermal insulation effect, it is separated from the inner cavity of the cup cover and the external space by only two sides of the cover body, which has fast heat conduction and poor thermal insulation effect. In the process of use, after the cup is filled with hot water, directly cover the cup lid, and the pressure inside the cup lid exceeds the external pressure. In this case, the cup lid is prone to negative pressure and is difficult to open after the temperature inside the cup drops. Therefore, it is necessary to adjust the cup lid. The structure is improved so that it can solve the problems of thermal insulation performance and convenient opening, thereby improving the use value of the thermal insulation cup.

Invention content:

The purpose of the present invention is to make up for the defects of the prior art, and to provide a self-aspirating sealing and thermal insulation cover, which changes the structure of the traditional cover body, and combines the structure of the airtight cavity in the inner plug and the sealing ring of the side wall of the inner plug. , which can reduce the heat exchange between the cup body and the outside air, thereby prolonging the holding time, and at the same time, when the heat is lost to the inside of the cup and the air pressure is lower than the outside pressure, it is easy to open.

The present invention is achieved through the following technical solutions:

A self-breathing type sealing heat preservation cover, comprising an outer cover and an inner cover which are press-fitted and fitted, a mounting hole is arranged in the middle of the inner cover, an inner plug is clamped and fixed in the mounting hole, and the inner plug is There is a cavity in the middle, a closed cavity is formed between the cavity and the outer cover, a sealing mechanism for automatic suction is installed in the cavity, and the sealing mechanism includes a sealing mechanism arranged in the cavity and enclosed by the shell. The suction chamber, the suction chamber and the sealing chamber are separated into independent chambers, the air inlet of the suction chamber is located on the side wall of the inner plug at the corresponding position, and the suction chamber of the suction chamber is The bottom end surface is provided with a ventilation hole and a fixing hole for fixing the sealing gasket, the disk-shaped sealing gasket for sealing the ventilation hole is fixedly installed in the fixing hole, and the outer surface of the bottom end of the inner plug is provided with a sealing A sealing ring is clamped in the sealing groove.

The inner side wall of the bottom end of the outer cover is distributed with convex ribs protruding inwardly at intervals, and a limiting boss for clamping the inner cover is arranged between the convex ribs, and the bottom end of the inner cover There is a limit ring matched with the limit boss on the outer side wall of the cover, and the limit ring is distributed with a snap groove matched with the convex rib on the outer cover.

The outer side wall of the upper port of the inner plug is provided with a limiting convex rib, and the limiting convex rib is engaged with the boss at the upper port of the inner cover for clamping and limiting fit.

The upper port of the inner plug cavity is provided with a slot, the outer side of the upper end of the inner plug is provided with a step surface, the step surface is provided with a limit block, and the upper port of the inner cover is provided with a socket. slot-fit inserts.

A sealing ring is clamped between the upper end surface of the step surface and the inner cover, and a limit step for defining the sealing ring is arranged on the inner end surface of the inner cover.

The suction chamber is a hollow cavity structure surrounded by an upper panel, a side panel and a bottom panel. The upper panel, the side panel and the bottom panel are integrated with the inner plug and are integrated by injection molding.

The bottom panel is located above the bottom end face of the inner plug, and an installation cavity for clamping the disc-shaped gasket is enclosed between the bottom panel and the side panel. An annular boss matched with a shaped sealing gasket, the ventilation holes and the fixing holes are both located in the annular boss.

An auxiliary cover plate matched with the installation cavity is installed in the installation cavity, the side of the auxiliary cover plate facing the side wall of the inner plug is provided with a ventilation port, and the two sides of the ventilation port are provided with limit protrusions, so The inner plug side wall in the installation cavity is provided with a limit slot 1 which is buckled with the limit protrusion 1.

The side walls on both sides of the ventilation opening of the auxiliary cover plate are provided with a limit protrusion 1, and the inner side wall of the inner plug in the installation cavity is provided with a limit slot 1 which cooperates with the limit protrusion 1. The side wall of the rear end of the cover plate is provided with two limit protrusions, and the inner side wall of the installation cavity is provided with two limit slots matched with the second limit protrusions.

The middle part of the sealing ring is provided with a buffer groove, the opening of the buffer groove is downward, and the outer side surface of the buffer groove is slightly inclined inward.

The principle is: changing the structure of the traditional cover, through the inner plug, the sealing ring on the side of the inner plug and the structure of the sealing mechanism for automatic suction in the inner plug, on the one hand, the closed cavity in the inner plug can reduce the cup body and the outside air. On the other hand, when the heat is dissipated to the inside of the cup and the air pressure is lower than the external pressure, the dish-shaped gasket is concave downward, and the air in the closed cavity is circulated and sucked in air. , to achieve pressure balance, easy to open.

The advantages of the present invention are:

The structure of the invention is reasonable in design, which changes the structure of the traditional cover body, and through the combination of the airtight cavity in the inner plug and the sealing ring on the side wall of the inner plug, the heat exchange between the cup body and the outside air can be reduced, thereby prolonging the heat preservation time. At the same time, when the heat is dissipated into the cup, the air pressure in the cup is lower than the external pressure, which is convenient for opening.

Description of drawings:

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the structure of the outer cover.

FIG. 3 is a schematic view of the structure of the inner cover.

Figure 4 is a schematic diagram of the structure of the inner plug.

FIG. 5 is a schematic structural diagram of the auxiliary cover plate.

FIG. 6 is a schematic view of the structure of the dish-shaped gasket.

FIG. 7 is a schematic structural diagram of another angle of the inner plug.

FIG. 8 is a schematic diagram of a cross-sectional structure of the sealing ring.

Reference number:

1. Outer cover; 2. Inner cover; 3. Inner plug; 4. Recessed cavity; 5. Suction chamber; 6. Ventilation hole; 7. Fixed hole; 8. Disc-shaped gasket; 9. Rib; 10 , Limit boss; 11, Limit ring; 12, Limit ribs; 13, Slot; 14, Step surface; 15, Limit block; 16, Sealing ring; 17, Limit step; 18, Installation cavity ; 19, auxiliary cover plate; 20, vent; 21, limit protrusion one; 22, limit slot one; 23, sealing ring; 24, sealing groove; 25, annular boss; 26, buffer groove.

Detailed ways:

See attached image.

A self-breathing sealed thermal insulation cover, comprising an outer cover 1 and an inner cover 2 that are press-fitted and fitted, a mounting hole is arranged in the middle of the inner cover 2, an inner plug 3 is clamped and fixed in the installation hole, and the middle part of the inner plug 3 is fixed. A concave cavity 4 is provided, a closed cavity is formed between the concave cavity 4 and the outer cover 1, and a sealing mechanism for automatic suction is installed in the concave cavity 4, and the sealing mechanism includes an air suction arranged in the cavity 4 and enclosed by the shell Chamber 5, the suction chamber 5 and the sealing chamber are separated into independent chambers, the air inlet of the suction chamber 5 is located on the side wall of the inner plug 3 at its corresponding position, and the bottom end surface of the suction chamber 5 There is a vent hole 6 and a fixing hole 7 for fixing the gasket. A disc-shaped gasket 8 for sealing the vent hole is fixedly installed in the fixing hole 7. A sealing ring 23 is clamped in the groove; through the structure of the sealing ring, the sealing performance between the inner plug and the cup body is ensured during use.

Further, the inner side wall of the bottom end of the outer cover 1 is distributed with convex ribs 9 protruding inwardly at intervals, between the convex ribs 9 there is a limiting boss 10 for clamping the inner cover. There is a limit ring 11 that cooperates with the limit boss 10 on the outer side wall of the outer cover, and the limit ring 11 is distributed with a slot that cooperates with the convex rib on the outer cover 1; It is snap-fitted with the limit ring and the card groove of the inner cover to realize the fixed connection of the two, and the assembly is convenient and easy to operate.

Further, a limiting rib 12 is provided on the outer side wall of the upper port of the inner plug 3, and the limiting rib 12 is engaged with the boss at the upper port of the inner cover 2 by clamping and limiting; The bosses of the inner cover are snap-fitted to assist the pressing connection of the inner cover and the inner plug to be fixed. A slot 13 is provided at the upper port of the cavity of the inner plug 3, a stepped surface 14 is provided on the outer side of the upper end of the inner plug 3, a limiting block 15 is provided on the stepped surface 14, and the upper port of the inner cover 2 is provided with a slot 13. The matching insert block; through the structure of the stepped surface, the clamping and fixing of the inner plug and the inner cover is realized, and the direct clamping and position limit of the inner plug and the inner cover are realized through the slot and the inserting block. A sealing ring 16 is clamped between the upper end surface of the step surface 14 and the inner cover 2, and a limit step 17 for limiting the sealing ring is provided on the inner end surface of the inner cover 2; The sealing between the covers ensures the stability of the clamping of the sealing ring through the structure of the limit step on the inner cover.

Further, the suction chamber 5 is a hollow cavity structure surrounded by the upper panel, the side panel and the bottom panel, and the upper panel, side panel and bottom panel and the inner plug 3 are integral structures, which are integrated by injection molding; The cavity and the concave cavity arranged in the inner cavity make reasonable use of the space of the concave cavity, and at the same time, it is directly injection molded, which is convenient for processing, so that the suction cavity is separated from the closed cavity, and the sealing and thermal conductivity between them is good. The bottom panel is located above the bottom end face of the inner plug 3, and a mounting cavity 18 for clamping the disc-shaped gasket is enclosed between the bottom of the bottom panel and the side panel. The matching annular boss, the ventilation hole 6 and the fixing hole 7 are located in the annular boss; through the structure of the installation cavity, it is used for accommodating the dish-shaped gasket, and at the same time, it is convenient to install and fix the dish-shaped gasket. The installation cavity 18 is provided with an auxiliary cover plate 19 that cooperates with the installation cavity 18, and the side of the auxiliary cover plate 19 facing the side wall of the inner plug 3 is provided with a ventilation port 20; The gas in the cup directly contacts the disc seal to protect the disc seal. On the other hand, it can be used to limit the disc seal to avoid falling off during the stress process.

Further, the side walls on both sides of the ventilation opening 20 of the auxiliary cover 19 are provided with a limit protrusion 1 21, and the inner side wall of the inner plug in the installation cavity 18 is provided with a limit slot 1 which cooperates with the limit protrusion 1 21, The side wall of the rear end of the auxiliary cover plate 19 is provided with a second limit protrusion 22, and the inner side wall of the installation cavity 18 is provided with a limit slot 2 which cooperates with the second limit protrusion 22; The structure of lifting 1 and limiting protrusion 2 facilitates the installation of the auxiliary cover. The auxiliary cover can be directly buckled in the installation cavity. When the auxiliary cover is opened, the auxiliary cover can be inserted into the ventilation opening, and the auxiliary cover can be directly inserted into the air hole. The plate is tilted up, which is convenient for cleaning the butterfly gasket or the installation when the butterfly gasket falls off after long-term use.

Further, a buffer groove 26 is provided in the middle of the sealing ring 23, the opening of the buffer groove 26 is downward, and the outer side of the buffer groove 26 is slightly inclined inward; , According to the characteristics of thermal expansion and cold contraction, the sealing ring can be closer to the inner wall of the cup body or the inner wall of the kettle, and the sealing performance is better. , so as to facilitate opening.

The specific installation and use process of the above structure is as follows: firstly, insert the inner cover into the outer cover, and then clamp and fix the inner plug in the inner cover. After the inner plug is fixed, install the butterfly seal in the fixing hole. In the middle, screw the bottom end of the inner cover to the mouth of the cup or pot. After screwing, the temperature of the cup body or the pot body is relatively high. At this time, the temperature of the cup body or the pot body will enter from the air inlet of the auxiliary cover plate. into the installation cavity, and then enter into the suction cavity from the ventilation hole of the installation cavity. At this time, the disk-shaped gasket will be forced upward, and the edge of the disk-shaped gasket will be in close contact with the annular boss in the installation cavity for sealing. , thus preventing the heat exchange between the closed cavity above it and the cup body, thus acting as an interlayer. When the heat of the cup body is dissipated into the cup or the air pressure in the pot is lower than the external pressure, the disc gasket is affected by the upper The downward pressure is not sealed with the annular boss, and the air is circulated and sucked in with the air in the closed cavity to achieve pressure balance, so as to facilitate opening.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of For the convenience of describing the present utility and simplifying the description, it is not intended to indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility. Furthermore, "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and restricted, the terms "arrangement", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or an internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A self-breathing sealing and heat-preserving cover, comprising an outer cover (1) and an inner cover (2) that are press-fitted, characterized in that a mounting hole is provided in the middle of the inner cover (2), and the An inner plug (3) is clamped and fixed in the mounting hole, a cavity (4) is arranged in the middle of the inner plug (3), and a closed cavity is formed between the cavity (4) and the outer cover (1). A sealing mechanism for automatic suction is installed in the cavity (4), and the sealing mechanism includes a suction chamber (5) arranged in the cavity (4) and enclosed by a casing, the suction chamber (5) Separated from the sealing chamber as an independent chamber, the air inlet of the suction chamber (5) is located on the side wall of the inner plug (3) at its corresponding position, and the suction chamber (5) The bottom end face of the air conditioner is provided with a ventilation hole (6) and a fixing hole (7) for fixing the sealing gasket, and a dish-shaped sealing gasket (8) for sealing the ventilation hole is fixedly installed in the fixing hole (7). A sealing groove (24) is provided on the outer surface of the bottom end of the inner plug (3), and a sealing ring (23) is clamped in the sealing groove (24). 2. The self-aspirating sealing and heat-preserving cover according to claim 1, wherein the inner side wall of the bottom end of the outer cover (1) is distributed with ribs (9) protruding inwardly at intervals A limiting boss (10) for clamping the inner cover is provided between the protruding ribs (9), and a limiting boss (10) is provided on the outer side wall of the bottom end of the inner cover (2). A matching limit ring (11) is provided, and the limit ring (11) is distributed with a clamping groove matched with the convex rib on the outer cover (1). 3. The self-aspirating sealing and heat-preserving cover according to claim 1, characterized in that: limit ribs (12) are provided on the outer side wall of the upper port of the inner plug (3), and the limit The protruding rib (12) is engaged with the boss at the upper port of the inner cover (2) in a snap-fit limit fit. 4. The self-breathing sealing and thermal insulation cover according to claim 1, wherein a slot (13) is provided at the upper port of the concave cavity of the inner plug (3), and the inner plug (3) A stepped surface (14) is provided on the outer side of the upper end, a limiting block (15) is provided on the stepped surface (14), and an insert block matched with the slot (13) is provided at the upper port of the inner cover (2). . 5. The self-aspirating sealing and heat-preserving cover according to claim 4, wherein a sealing ring (16) is clamped between the upper end surface of the step surface (14) and the inner cover (2), so The inner end surface of the inner cover (2) is provided with a limiting step (17) for defining the sealing ring. 6. The self-aspirating sealing and heat-preserving cover according to claim 1, characterized in that: the inhalation chamber (5) is a hollow cavity structure surrounded by an upper panel, a side panel and a bottom panel, so The upper panel, the side panel and the bottom panel are integrated with the inner plug (3) and are integrated by injection molding. 7. The self-aspirating sealing and heat-preserving cover according to claim 6, wherein the bottom panel is located above the bottom end face of the inner plug (3), and the bottom panel and the side panel are surrounded by a An installation cavity (18) for clamping a disc-shaped gasket, the upper end surface of the installation cavity (18) is provided with an annular boss (25) matched with the disc-shaped gasket (8), and the ventilation hole ( 6) and the fixing hole (7) are located in the annular boss (25). 8 . The self-aspirating sealing and thermal insulation cover according to claim 7 , wherein an auxiliary cover plate ( 19 ) which is buckled with the installation cavity ( 18 ) is installed in the installation cavity ( 18 ), and the auxiliary cover ( 19 ) is installed in the installation cavity ( 18 ). A vent (20) is provided on the side of the front end of the cover plate (19) facing the side wall of the inner plug (3). 9. The self-aspirating sealing and heat-preserving cover according to claim 8, characterized in that: a limit protrusion (21) is provided on the side walls of both sides of the ventilation opening (20) of the auxiliary cover plate (19), The inner side wall of the inner plug in the installation cavity (18) is provided with a limit slot 1 that cooperates with the limit protrusion 1 (21), and the side wall at the rear end of the auxiliary cover plate (19) is provided with a limit protrusion. Two (22) are mounted, and the inner side wall of the mounting cavity (18) is provided with two limiting slots matched with the second limiting protrusions (22). 10 . The self-aspirating sealing and heat-preserving cover according to claim 1 , wherein a buffer groove ( 26 ) is provided in the middle of the sealing ring ( 23 ), and the notch of the buffer groove ( 26 ) opens. 11 . Downward, the outer side surface of the buffer groove (26) is slightly inclined inwardly.

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