CN219020780U - Double-body coffee cup - Google Patents

Abstract

The utility model relates to a coffee cup, in particular to a double-body coffee cup. The utility model provides a double-body coffee cup, which comprises an upper cup body and a lower cup body which are detachably connected, wherein the upper cup body and the lower cup body are both heat-insulating cup bodies, the top of the upper cup body is provided with a detachable upper cup cover, a butt joint structure for connecting the two cup bodies is arranged between the upper cup body and the lower cup body, the top of the lower cup body is also provided with a detachable lower cup cover, and the butt joint structure is arranged between the lower cup cover and the bottom end of the upper cup body. The coffee cup is formed by connecting the upper cup body and the lower cup body which can be independently used, the two cup bodies have independent sealing, heat preservation and drinking functions, and the two cup bodies can be assembled into a whole in a butt joint mode according to use requirements.

Description

Double-body coffee cup

Technical Field

The utility model relates to a coffee cup in a drinking appliance, in particular to a double-body coffee cup.

Background

The common coffee cup has the capacity of only being drunk once, and is inconvenient to spill when being taken out. The common large-capacity coffee cup simply fills a plurality of coffee into one containing cavity, if the coffee is not drunk at one time, the taste of the coffee can be influenced after the coffee is cooled for a long time, and the coffee cup is quite inconvenient. At present, two upper and lower sections of combined connected cups are arranged, and the upper and lower sections of cup bodies can respectively contain hot water and cold water or double-amount coffee and other beverages. The double-section cup body can carry double water or coffee and beverage at the same time, but the problem of heat preservation and sanitation exists in use, the upper cup body in the two-section cup body is provided with the sealing cover which can be opened and closed independently, the lower cup body can be effectively sealed and heat preserved only when the upper cup body is integrally connected, once the two-section cup body is separated, the lower cup body is in an open state, the heat preservation effect of the lower cup body is poor, the sanitation risk exists, and hot drinks such as coffee and the like contained in the lower cup body must be drunk as soon as possible; the upper cup body can be independently carried for use in daily use, the lower cup body can not be independently sealed, heat-insulating and carrying for use, and the lower cup body can carry hot drinks only by connecting the upper cup body. Therefore, the upper and lower connected cups are more suitable for carrying hot drinks to one place for two people to drink simultaneously or for a single person to drink sequentially for two times, the requirements of carrying double-quantity coffee at one time and then drinking at different places and different times in a staggered manner can not be met, and two cups of hot drinks can be carried separately according to the requirements.

Disclosure of Invention

The utility model provides a double-body coffee cup, which is formed by connecting two upper and lower cups which can be independently used, wherein the upper and lower cups have independent sealing, heat preserving and drinking functions, and the two cups can be assembled into a whole for carrying according to the needs.

The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a two-body coffee cup, includes cup and lower cup that can dismantle the connection, goes up, lower cup is the thermos cup, and goes up the cup top and be equipped with the detachable upper cup lid, is equipped with the butt joint structure of connecting two cups between upper and lower cup, characterized by down the cup top is equipped with the detachable lower bowl cover, butt joint structure locates down between bowl cover and the upper cup bottom. According to the utility model, the upper cup cover is arranged on the top of the lower cup body, so that the lower cup body can be independently used after being separated from the upper cup body, the lower cup body has the functions of independent sealing, heat preservation and drinking, and meanwhile, the lower cup cover can be detachably connected between the upper cup body and the lower cup body through the butt joint structure between the lower cup cover and the bottom end of the upper cup body, so that the two cup bodies can be assembled and butt-jointed into a whole for carrying when required.

As a further improvement and supplement to the technical scheme, the utility model adopts the following technical measures: the upper cup body side wall is extended downwards to form a circle of continuous enclosing wall, the lower cup cover forms an upper cup cover part and a lower cup cover part with different outer diameters, the outer diameter of the cup cover part of the upper section is smaller than that of the cup cover part of the lower section, the enclosing wall is sleeved on the cup cover part of the upper section, the enclosing wall is connected with the lower cup cover side wall sleeved in the enclosing wall through threads, the inner side surface of the enclosing wall and the lower cup cover side wall sleeved in the enclosing wall are respectively provided with matched inner threads and outer threads, or the enclosing wall and the lower cup cover side wall sleeved in the enclosing wall are fastened in a clamping manner, and the inner side surface of the enclosing wall and the lower cup cover side wall sleeved in the enclosing wall are respectively provided with matched protruding points and concave grooves. The side wall of the upper cup body is downwards extended to form a circle of continuous enclosing wall which is sleeved with the cup cover part of the thin diameter section at the upper part of the lower cup cover, so that the upper cup body can be flush and butt-jointed with the thick diameter section part at the lower part of the lower cup cover, and the outer diameter of the lower cup cover of the thick diameter section part is equal to the outer diameter of the side wall of the upper cup body. The surrounding wall and the sleeved lower cup cover part can be in threaded connection or clamping connection in particular so as to facilitate disassembly and assembly, when the surrounding wall and the lower cup cover are in threaded connection, the surrounding wall is provided with internal threads, and the lower cup cover is provided with external threads; when the two are clamped, the surrounding wall and the lower cup cover are connected and fixed in a matched mode through the convex points and the concave grooves, one of the convex points and the concave grooves is arranged on the inner side surface of the surrounding wall, the other is arranged on the side wall of the lower cup cover, and the positions of the convex points and the concave grooves can be interchanged.

The internal thread is a convex rib which continuously extends along the spiral line around the inner side surface of the surrounding wall, the external thread is a convex rib which continuously extends along the spiral line around the side wall of the lower cup cover, or the external thread is a plurality of bulges which are intermittently arranged along the extending direction of the spiral line around the side wall of the lower cup cover. The internal and external threads may be ribs extending continuously along the helix. In order to simplify the structure and reduce manufacturing cost, the external threads on the side wall of the lower cup cover can also discontinuously extend, the external threads at the moment are a plurality of bulges intermittently distributed along the extending direction of the spiral line, when the surrounding wall is sleeved on the lower cup cover, the bulges arranged along the extending direction of the spiral line can also be matched with the internal threads on the surrounding wall, so that the butt joint connection between the upper cup body and the lower cup body is realized, the processing is convenient, the rotating separation is convenient, and the rotating separation is easier and more labor-saving. In use, the number of the bulges is 3-4. The peripheral wall and the lower cup cover can be fastened in a screwing way by a small number of protrusions, and the peripheral wall and the lower cup cover can be butted by turning for half a turn or less during butt joint.

The upper cup cover comprises a round cover which is screwed on the open end of the upper cup body and an upper flip cover which is arranged on the round cover, an upper water outlet hole and an upper air outlet hole which are communicated with the inner cavity of the upper cup body are formed in the top surface of the round cover, one end of the upper flip cover is pivoted with the top surface of the round cover, an upper air hole plug and an upper water outlet plug are sequentially arranged on the upper flip cover from one side of the pivoted end to the other end of the upper flip cover to respectively block the upper air outlet hole and the upper water outlet hole, and the end part of the other end of the upper flip cover is outwards bent to form a buckling part which can be clamped with the edge of the round cover. When the upper cover is used, the buckling part at one end of the upper cover is clamped at the edge of the round cover, the upper water outlet plug and the upper air hole plug respectively block the upper water outlet hole and the upper air outlet hole, and the upper cover and the round cover seal the opening of the upper cup body together; when water is poured or drunk, the buckling part is lifted to be separated from the edge of the clamped round cover, the upper turnover cover rotates freely around the pivoting end, and when the upper water outlet plug is separated from the upper water outlet hole, the upper cup body can pour water or drink.

The top surface of the round cover is provided with a round concave cavity, the upper flip cover is embedded in the concave cavity, the upper water outlet and the upper exhaust hole are both arranged on the bottom wall of the concave cavity, the upper water outlet is arranged at one end of the bottom wall of the concave cavity, and a pin hole pivoted with the upper flip cover is arranged on the side wall adjacent to the other end of the bottom wall. The dome top surface is held and is inlayed and establish flip and limit it through predetermineeing a cavity, and the buckling part and the dome edge joint of flip one end are gone up in the cooperation, ensure to go up flip lock in place to two sealing plugs are accurate to block up apopore and last exhaust hole. When water is poured or drunk, the buckling part is lifted to rotate the upper turnover cover, and the upper water outlet hole is exposed.

The bottom surface of the upper flip cover is provided with a groove and is embedded with a rubber sleeve with matched shape, two downward protruding protrusions are arranged on the rubber sleeve to respectively form an upper water gap plug and an upper air hole plug, and the back surface of the protrusion corresponding to the upper water gap plug is inwards recessed in the surrounding rubber sleeve and is sleeved on a positioning part protruding from the bottom wall of the groove. The upper flip cover is embedded with a rubber sleeve with two bulges through a groove arranged on the bottom surface of the upper flip cover for sealing, wherein the rubber sleeve can be made of food-grade silica gel materials, and meanwhile, the rubber sleeve is provided with two bulges which serve as an upper water gap plug and an upper air hole plug; and the back of the part of the rubber sleeve where the upper water gap plug is positioned is inwards recessed around so as to be sleeved on a positioning part extending out of the bottom wall of the groove, so that the connection reliability of the rubber sleeve and the upper flip cover is further improved, and the sealing performance of the upper water gap plug when the upper water gap plug plugs the upper water outlet is further improved.

The lower cup cover is provided with a lower water outlet hole, a lower exhaust hole and an elastic lower flip cover for opening and closing the lower water outlet hole and the lower exhaust hole, one end of the lower flip cover is rotationally connected with the lower cup cover, the other end of the lower flip cover is provided with a lower water outlet plug extending downwards and a holding part extending upwards and bending, the middle part of the lower flip cover is provided with a lower air hole plug extending downwards, the holding part is pinched to lift the lower flip cover and enable the lower water outlet plug to be pulled out of the lower water outlet hole, or the lower flip cover is pressed downwards and enable the lower water outlet plug to be plugged into the lower water outlet hole. The lower cup cover is provided with a lower water outlet hole, a lower exhaust hole and a lower flip cover for closing the lower water outlet hole, the lower cup cover is not required to be opened, and water can be poured or drunk only by opening the lower flip cover to expose the lower water outlet hole. One end of the lower flip cover is rotationally connected with the lower cup cover, the other end of the lower flip cover is plugged or pulled out by the lower water outlet plug to open and close the lower water outlet hole on the lower cup cover, the holding part on the lower flip cover is pinched to lift the lower water outlet plug out of the lower water outlet hole, then the lower flip cover is rotated to enable the lower water outlet plug to move to one side of the lower water outlet hole, and at the moment, the lower water outlet hole is completely exposed to pour water or drink; otherwise, the lower part of the holding part is pinched to press the flip cover, so that the lower water outlet plug is plugged into the lower water outlet hole again to be plugged, and the lower water outlet plug can be closed. The lower air hole plug is positioned in the middle of the lower flip cover, when the lower flip cover is opened and moved to one side, the lower air hole is exposed at the same time, otherwise, when the lower flip cover closes the lower water outlet hole, the lower air hole is blocked by the lower air hole plug.

The lower flip is made of elastic materials, two ends of the lower flip are respectively provided with a cylinder which stretches downwards, the end parts of the two cylinders are expanded to form conical heads which are larger than the outer diameter of the cylinders, the two conical heads are provided with holes from the center of the end face and extend to one side of the cylinders along the axis to form deformation holes, one of the two conical heads is a lower water gap plug, the other conical head penetrates through a mounting hole formed in the lower cup cover and is rotationally connected with the mounting hole, the aperture of the mounting hole is matched with the cylinder connected with the conical head, the lower water gap plug penetrates through a lower water outlet hole to seal the lower water gap plug, the inner diameters of the cylinder connected with the lower water outlet hole are matched, and a bulge which stretches downwards is arranged on the lower flip between the two cylinders and is used as a lower air hole plug. The lower flip cover is made of elastic materials, and two cylinders on the lower flip cover are respectively in plug-in fit with the lower water outlet hole and the mounting hole on the lower cup cover and coact with the respective conical heads to respectively realize the purposes of sealing the lower water outlet hole and rotatably mounting the lower flip cover; the deformation holes can enable the conical head to pass through the corresponding lower water outlet hole or the mounting hole smoothly through deformation, the conical head can be prevented from falling off and limiting after passing through the pore channel, the conical head passing through the mounting hole can ensure that the lower flip cover is rotationally connected to the lower cup cover, the conical head passing through the lower water outlet hole can be lifted along with one end of the lower flip cover to deform again to be pulled out from the lower water outlet hole, and the conical head can be reinserted when in need of sealing.

The side wall of the upper cup body is provided with an adjustable flexible hand strap, the upper end of the hand strap is fixed on the upper part of the side wall of the upper cup body, and the lower end of the hand strap is detachably connected with the lower part of the side wall of the upper cup body. The adjustable hand strap of the side wall of the upper cup body is convenient for holding the coffee cup, when in use, a single hand is inserted into a gap between the hand strap and the side wall of the cup body in a mode that the palm center is attached to the side wall of the cup body, and the hand strap is used for holding the upper cup body. When the coffee cup does not need to be held, the lower end of the hand strap can be detached from the side wall of the upper cup body, so that the hand strap can be straightened, and the coffee cup can be packed and carried.

The upper cup body is matched with and detachably connected with a hole and a groove at the lower end of the hand strap through a mounting part at the lower part of the side wall of the upper cup body, the mounting part is formed by connecting a column section with an axis coincident with a round platform, one end of the column section is connected with the side wall of the upper cup body, and the other end of the column section is connected with the round platform; the hole groove comprises a strip-shaped groove with the width smaller than the diameter of the column section and a round hole formed by expanding one end of the strip-shaped groove, the inner diameter of the round hole is smaller than that of the round table, and the middle section of the hand strap is provided with the hole groove with the same shape as the lower end of the hand strap. The upper cup body is detachably connected with the lower end of the hand strap through the hole groove in the mounting part in a matched mode, at the moment, the hand strap can be bent so that hands can be inserted into a neutral position between the hand strap and the side wall of the upper cup body to be held, the round table penetrates through the side face of the hole groove during connection, the round table penetrates through the hole groove to extend out, the column section penetrates and is limited in the hole groove, and the separation is carried out only according to the reverse operation; the hand strap is adjusted to enable the column section to move relative to the strip-shaped groove, and the position of the lower end of the hand strap can be adjusted. When the hole groove at the middle section of the hand strap is matched with the mounting part, the hand strap can be kept in a vertical and vertical state, and the hand strap is convenient to be put into a bag for carrying.

The utility model improves the lower cup body, and the top of the lower cup body is provided with the independent lower cup cover, so that the lower cup body has independent sealing, heat preservation and drinking functions after being separated from the upper cup body; meanwhile, the lower cup cover is in butt joint with the bottom end of the upper cup body through a butt joint structure, detachable connection between the upper cup body and the lower cup body is reserved, and the two cup bodies can still be assembled and butt-jointed into a whole when needed, so that the cup is convenient to carry.

Drawings

Fig. 1: the upper cup body and the lower cup body of the utility model are assembled to form a schematic diagram.

Fig. 2: fig. 1 is a cross-sectional view.

Fig. 3: the upper cup body is structurally and schematically shown.

Fig. 4: the bottom angle view of fig. 3.

Fig. 5: the lower cup body is structurally and schematically shown.

Fig. 6: fig. 5 is a bottom angle view.

In the figure: 1. the novel plastic cup comprises an upper cup body, 1-1 part of a surrounding wall, 1-11 part of a protruding rib, 1-2 part of a mounting part, 1-21 part of a column section, 1-22 part of a round platform, 2 part of a lower cup body, 3 part of an upper cup cover, 3-1 part of a round cover, 3-11 part of an upper water outlet hole, 3-12 part of an upper exhaust hole, 3-13 part of a pin hole, 3-2 part of an upper turnover cover, 3-21 part of a buckling part, 3-22 part of a groove, 3-23 part of a locating part, 3-24 part of a short pin column, 4 part of a lower cup cover, 4-1 part of a lower water outlet hole, 4-2 part of a lower exhaust hole, 4-3 part of a mounting hole, 4-4 part of a bulge, 5 part of an upper air hole plug, 6 part of an upper water outlet plug, 7 part of a rubber sleeve, 8 part of a lower turnover cover, 8-1 part of a lower water outlet plug, 8-2 part of a holding part, 8-3 part of a lower air hole plug, 9 part of a hand strap, 9-1 part of a strip groove, 9-2 part of a round hole, 10 part of a lifting ring and 11 part of a locating bulge.

Detailed Description

The utility model is further described with reference to the accompanying drawings and detailed description.

As shown in figures 1-6, a double-body coffee cup comprises an upper cup body 1 and a lower cup body 2, wherein the two cup bodies are vacuum interlayer-carrying heat preservation cup bodies made of stainless steel and can be connected up and down or separated for independent use, a detachable upper cup cover 3 is arranged at the top of the upper cup body 1, a detachable lower cup cover 4 is arranged at the top of the lower cup body 2, a butt joint structure for connecting the two cup bodies is arranged between the lower cup cover 4 and the bottom end of the upper cup body 1, the butt joint structure comprises a circle of continuous surrounding wall 1-1 formed by downwards extending the side wall of the upper cup body 1, the lower cup cover 4 forms two sections of cup cover parts with different outer diameters, the outer diameter of the cup cover part of the upper section is smaller than the outer diameter of the cup cover part of the lower section, the surrounding wall 1-1 is sleeved on the cup cover part of the upper section, the surrounding wall 1-1 is connected with the side wall of the lower cup cover 4 sleeved in a threaded or clamping manner, the inner side wall 1-1 is preferably connected in a threaded manner, the inner side surface of the inner side of the surrounding wall of the upper cup cover 4 is provided with matched inner threads and outer threads respectively, and the concave side walls of the inner side wall of the surrounding the inner side wall are required to be matched on the inner side surface of the surrounding wall of the inner side wall of the cup 1-1. The internal thread in the threaded connection of this embodiment is a bead 1-11 continuously extending along the spiral line around the inner side surface of the surrounding wall 1-1, the external thread is reduced to three protrusions 4-4 intermittently provided along the extending direction of the spiral line around the side surface of the lower cup cover 4, and in addition, the external thread may also be a conventional bead continuously extending along the spiral line around the side surface of the lower cup cover 4.

As shown in fig. 3 and 4, the upper cup cover 3 comprises a round cover 3-1 screwed on the open end of the upper cup body 1 and an upper flip cover 3-2 arranged on the round cover, a round concave cavity is arranged on the top surface of the round cover 3-1, an upper water outlet 3-11 and an upper air outlet 3-12 which are communicated with the inner cavity of the upper cup body 1 are arranged on the bottom wall of the round concave cavity, the upper water outlet 3-11 is arranged at one end of the bottom wall of the concave cavity, a pin hole 3-13 pivoted with the upper flip cover 3-2 is arranged on the adjacent side wall of the other end of the bottom wall, the upper flip cover 3-2 is embedded in the concave cavity and pivoted with the round cover 3-1, short pin posts 3-24 matched with the pin hole 3-13 are arranged on two sides of one end of the upper flip cover 3-2, an upper air vent plug 5 and an upper water outlet plug 6 are sequentially arranged on the other end from one side of the pivoted end to the other end, and the end of the other end of the upper flip cover 3-2 is bent to form a buckling part 3-21 capable of being buckled with the edge of the round cover 3-1. The bottom surface of the upper flip cover 3-2 is provided with a groove 3-22 and is embedded with a rubber sleeve 7 with a matched shape, two downward protruding parts are arranged on the rubber sleeve 7 to respectively form the upper water gap plug 6 and the upper air hole plug 5, the back surface of the corresponding protrusion of the upper water gap plug 6 is inwards concave to the surrounding rubber sleeve 7, and the rubber sleeve 7 is sleeved on the positioning part 3-23 protruding from the bottom wall of the groove 3-22.

The side wall of the upper cup body 1 is provided with an adjustable flexible hand strap 9 made of leather materials, the upper end of the hand strap 9 is fixed on the upper part of the side wall of the upper cup body 1, the lower end of the hand strap 9 is matched with an installation part 1-2 arranged on the lower part of the side wall of the upper cup body 1 through a hole slot, so as to realize detachable connection, the installation part 1-2 consists of a column section 1-21 and a round table 1-22 which are integrally structured, the axes of the column section 1-21 and the round table 1-22 are coincident, and two ends of the column section are respectively connected with the side wall of the upper cup body 1 and the round table 1-22; the hole groove comprises a strip-shaped groove 9-1 with the width smaller than the diameter of the column section and a round hole 9-2 formed by expanding one end of the strip-shaped groove, the strip-shaped groove extends along the length direction of the hand strap, the inner diameter of the round hole 9-2 is smaller than that of the round table 1-22, and the middle section of the hand strap 9 is provided with a hole groove with the same shape as the lower end of the hand strap 9. During use, the holes and grooves in the middle part and the lower part of the hand strap are selected to be matched with the mounting parts on the side wall of the upper cup body, so that two different use effects of carrying and holding by inserting the hand can be respectively realized. In order to further facilitate carrying the double-body coffee cup after butt joint assembly, a U-shaped lifting ring 10 can be installed on the upper cup cover 3, two ends of the lifting ring 10 are pivoted on two sides of the upper cup cover 3, two positioning protrusions 11 of two limiting lifting rings 10 are symmetrically arranged on two sides of the upper cup cover 3, the positioning protrusions 11 can clamp the lifting ring 10 to lock and limit the lifting ring on the upper cup cover, the lifting ring is prevented from rotating around the pivoting end randomly along with shaking of the coffee cup under the condition of no positioning, and the lifting ring is separated from the positioning protrusions by being broken during unlocking.

As shown in fig. 5 and 6, a lower water outlet 4-1, a lower exhaust hole 4-2, and an elastic lower flip cover 8 for opening and closing the lower water outlet 4-1 and the lower exhaust hole 4-2 are arranged on the lower cup cover 4, the lower flip cover is made of food-grade silica gel materials, two ends of the lower flip cover 8 are respectively provided with a cylinder extending downwards, the end parts of the two cylinders are expanded to form conical heads larger than the outer diameter of the cylinder, the two conical heads open holes from the center position of the end surface and extend to one side of the cylinder along the axis to form deformation holes, one of the two conical heads is a lower water outlet plug 8-1, the end part of the lower flip cover where the lower water outlet plug is arranged is also provided with an upwards extending and bending holding part 8-2, the other conical head is extruded to pass through a mounting hole 4-3 arranged on the lower cup cover 4 to realize rotary connection between the lower flip cover 8 and the lower cup cover 4, the aperture of the mounting hole 4-3 is matched with the cylinder connected with the corresponding conical head, the lower water outlet 4-1 is sealed by penetrating through the lower water outlet 4-1, one of the cylinders connected with the lower water outlet plug 8-1 and the middle part of the lower water outlet 4-1 extends to form deformation holes, one of the two conical heads is the lower water outlet plug 8-1, the lower flip cover 8 is provided with a holding part 8-1 extending upwards and bending upwards, the lower flip cover 8-1 is extruded by the lower flip cover 4-2 is provided with the corresponding hole 8-3, and the lower water outlet plug 8-1 is extruded to be pushed down by the lower water outlet plug 8-8.

The utility model improves the lower cup bodies in the two cup bodies, and the top of the lower cup body is provided with the independent lower cup cover, so that the lower cup body has the independent sealing, heat preservation and drinking functions after being separated from the upper cup body, and particularly, after the upper cup body and the lower cup body are separated, the problem of sanitation existing in the opening of the lower cup body and the deterioration of drinking taste caused by cooling do not need to be worried about. The upper cup body and the lower cup body can be butted with the bottom end of the upper cup body through the lower cup cover, so that the upper cup body and the lower cup body can be butted into a whole to be carried when needed, double-quantity coffee is carried for many habits, or convenience is brought to the user and other people to carry one cup of coffee respectively, and particularly in the latter case, the two cup bodies can be used for containing coffee respectively and drink anywhere at any time.

Claims (10)

1. The utility model provides a two-body coffee cup, includes cup (1) and lower cup (2) that can dismantle the connection, goes up, lower cup (1, 2) are the thermos cup, and goes up cup (1) top and be equipped with detachable upper cup cover (3), is equipped with the butt joint structure of connecting two cup between upper and lower cup (1, 2), characterized by down cup (2) top is equipped with detachable lower bowl cover (4), butt joint structure locates between bowl cover (4) and the upper cup (1) bottom down.

2. The double-body coffee cup as claimed in claim 1, wherein the side wall of the upper cup body (1) extends downwards to form a circle of continuous surrounding wall (1-1), the lower cup cover (4) forms an upper cup cover part and a lower cup cover part with different outer diameters, the outer diameter of the cup cover part of the upper section is smaller than that of the cup cover part of the lower section, the surrounding wall (1-1) is sleeved on the cup cover part of the upper section, the surrounding wall (1-1) is connected with the side wall of the lower cup cover (4) sleeved in the surrounding wall through threads, the inner side surface of the surrounding wall (1-1) and the side wall of the lower cup cover (4) sleeved in the surrounding wall are respectively provided with matched inner threads and outer threads, or the surrounding wall (1-1) and the side wall of the lower cup cover (4) sleeved in the surrounding wall are fastened in a clamping manner, and the inner side surface of the surrounding wall (1-1) and the side wall of the lower cup cover (4) sleeved in the surrounding wall are respectively provided with matched protruding points and depressions.

3. A twin-coffee cup as defined in claim 2, in which the internal thread is a bead (1-11) extending continuously along a spiral line around the inner side surface of the peripheral wall (1-1), the external thread is a bead extending continuously along a spiral line around the side wall of the lower cup lid (4), or the external thread is a plurality of protrusions (4-4) intermittently arranged along the direction of extension of the spiral line around the side wall of the lower cup lid (4).

4. The double-body coffee cup as claimed in claim 1, wherein the upper cup cover (3) comprises a round cover (3-1) screwed on the open end of the upper cup body (1) and an upper flip cover (3-2) arranged on the round cover, an upper water outlet hole (3-11) and an upper air outlet hole (3-12) which are communicated with the inner cavity of the upper cup body (1) are formed in the top surface of the round cover (3-1), one end of the upper flip cover (3-2) is pivoted with the top surface of the round cover (3-1), an upper air hole plug (5) and an upper water outlet plug (6) are sequentially arranged on the upper flip cover (3-2) from one side of the pivoted end to the other end of the upper flip cover to respectively block the upper air outlet hole (3-12) and the upper water outlet hole (3-11), and the end of the other end of the upper flip cover (3-2) is outwards bent to form a buckling part (3-21) which can be clamped with the edge of the round cover (3-1).

5. The double-body coffee cup as claimed in claim 4, wherein the top surface of the round cover (3-1) is provided with a circular concave cavity, the upper flip (3-2) is embedded in the concave cavity, the upper water outlet hole (3-11) and the upper air outlet hole (3-12) are arranged on the bottom wall of the concave cavity, the upper water outlet hole (3-11) is arranged at one end of the bottom wall of the concave cavity, and a pin hole (3-13) pivoted with the upper flip (3-2) is arranged on the side wall adjacent to the other end of the bottom wall.

6. The double-body coffee cup as claimed in claim 5, wherein the bottom surface of the upper flip cover (3-2) is provided with a groove (3-22) and embedded with a rubber sleeve (7) with a matched shape, two downward protruding protrusions are arranged on the rubber sleeve (7) to form an upper water gap plug (6) and an upper air hole plug (5) respectively, and the back surfaces of the protrusions corresponding to the upper water gap plug (6) are inwards recessed in the surrounding rubber sleeve (7) and sleeved on the positioning parts (3-23) protruding from the bottom wall of the groove (3-22).

7. The double-body coffee cup as claimed in claim 1, wherein the lower cup cover (4) is provided with a lower water outlet (4-1), a lower air outlet (4-2) and an elastic lower flip cover (8) for opening and closing the lower water outlet (4-1) and the lower air outlet (4-2), one end of the lower flip cover (8) is rotatably connected with the lower cup cover (4), the other end of the lower flip cover (8) is provided with a lower water outlet plug (8-1) which extends downwards and a holding part (8-2) which extends upwards and bends, the middle part of the lower flip cover (8) is provided with a lower air hole plug (8-3) which extends downwards, and the holding part (8-2) is pinched to lift the lower flip cover (8) and enable the lower water outlet plug (8-1) to be pulled out of the lower water outlet (4-1), or the lower flip cover (8) is pressed downwards and enable the lower water outlet plug (8-1) to be plugged into the lower water outlet (4-1).

8. The double-body coffee cup as claimed in claim 7, wherein the lower flip cover (8) is made of elastic material, two ends of the lower flip cover (8) are respectively provided with a cylinder extending downwards, the ends of the two cylinders are expanded to form conical heads larger than the outer diameter of the cylinder, the two conical heads are provided with holes from the center of the end face and extend to one side of the cylinder along the axis to form deformation holes, one of the two conical heads is a lower water gap plug (8-1), the other conical head penetrates through a mounting hole (4-3) formed in the lower cup cover (4) to be rotationally connected with the lower flip cover, the aperture of the mounting hole (4-3) is matched with the cylinder connected with the conical head, the lower water gap plug (8-1) penetrates through the lower water outlet hole (4-1) to seal the lower water outlet hole, the cylinder connected with the lower water outlet hole (4-1) is matched with the inner diameter of the lower flip cover (8) between the two cylinders, and a downward extending bulge serving as the lower air hole plug (8-3) is arranged on the lower flip cover (8).

9. Double-body coffee cup according to any one of claims 1 to 8, characterized in that the side wall of the upper cup (1) is provided with an adjustable flexible hand strap (9), the upper end of the hand strap (9) is fixed on the upper part of the side wall of the upper cup (1), and the lower end of the hand strap (9) is detachably connected on the lower part of the side wall of the upper cup (1).

10. The double-body coffee cup as claimed in claim 9, wherein the upper cup body (1) is detachably connected with the hole and the groove at the lower end of the hand strap (9) through a mounting part (1-2) at the lower part of the side wall of the upper cup body, the mounting part (1-2) is formed by connecting a column section (1-21) and a round table (1-22) with coincident axes, one end of the column section (1-21) is connected with the side wall of the upper cup body (1), and the other end is connected with the round table (1-22); the hole groove comprises a strip-shaped groove (9-1) with the width smaller than the diameter of the column section and a round hole (9-2) formed by expanding one end of the strip-shaped groove, the inner diameter of the round hole (9-2) is smaller than that of the round table (1-22), and the middle section of the hand strap (9) is provided with the hole groove with the same shape as the lower end of the hand strap (9).

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