A vacuum flask

Abstract

The present invention discloses a heat-insulated cup, which relates to the technical field of water cups and has the advantage of misaligning the filter piece and the drinking port to reduce the falling out of the filter piece during drinking. The key points of its technical solution are as follows: A straw is penetrated through the middle of the cup lid, the straw is rotatably connected to the cup lid, and both the upper and lower ends of the straw penetrate out of the cup lid. Tea bins are provided on both sides of the straw on the cup lid. When the straw is rotated, a driving member for driving the two tea bins to move up and down reciprocally is provided on the cup lid.

Description

Technical Field

[0001] The present invention relates to the technical field of water cups, and particularly to a heat-insulated water cup. Background Art

[0002] A heat-insulated water cup is a container for holding water, with a lid on the top and tightly sealed, which can slow down the heat dissipation of liquids such as water contained inside to achieve the purpose of heat preservation. Generally, it is a water container made of ceramics or stainless steel with a vacuum layer, and is a commonly used item in daily life.

[0003] Such as Figure 8 , a heat-insulated water cup in the prior art, includes a cup body 1 and a filter net 2 clamped on the cup body 1, and also includes a cup lid 11 threadedly connected to the cup body 1.

[0004] When drinking from the heat-insulated water cup of the above prior art, it is necessary to drink the beverage after passing through the filter net. If the connection between the filter net and the cup body becomes loose, the filter net will flow out of the cup body together with the water flow, causing inconvenience in drinking. Summary of the Invention

[0005] Aiming at the above technical deficiencies, the purpose of the present invention is to provide a heat-insulated water cup, which has the advantages of misaligned distribution of the filter net and the drinking port, and reducing the falling out of the filter net during drinking.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a heat-insulated water cup, including a cup body and a cup lid threadedly connected to the upper end of the cup body. A straw is passed through the middle of the cup lid, and the straw is rotatably connected to the cup lid, and both the upper and lower ends of the straw extend out of the cup lid. Tea compartments are provided on both sides of the straw on the cup lid. When the straw is rotated, a driving member for driving the two tea compartments to move up and down reciprocally is provided on the cup lid.

[0008] By adopting the above technical solutions, setting the straw on the cup lid is convenient for the user to absorb water. At the same time, tea leaves or other solid brewing substances, such as lemon slices, are put into the tea compartments. At this time, the tea compartments filter the tea leaves, so that when the straw sucks the water in the cup body, it is not easy to suck the tea leaves or other solid brewing substances together. At this time, the tea compartments are equivalent to a filter net, making the tea compartments and the drinking port misaligned, reducing the situation of the tea compartments falling out during drinking. In addition, the setting of the driving member is convenient for the user to rotate the straw to drive the tea compartments to move, thereby accelerating the brewing speed of the tea leaves or solid brewing substances.

[0009] Preferably, the driving member includes a hollow cylinder fixedly provided on one side of the cup lid facing the cup body, and a lifting rod detachably connected to the upper end of the tea bin. The cylinder is coaxially distributed with the cup lid and the straw passes through the center of the cylinder. A driving disk is fixedly sleeved on the outer wall of the straw. Through holes for two lifting rods to pass through are formed in the driving disk. The lifting rods move up and down in the through holes. The cylinder has a relatively distributed highest surface and lowest surface and an arc surface connecting the two ends of the highest surface and the lowest surface on the end wall facing away from the cup lid. Compression springs are sleeved on the outer walls of the upper ends of the respective lifting rods extending out of the driving disk. Baffles are provided at the upper ends of the respective lifting rods. The lower ends of the compression springs abut against the driving disk, and the upper ends abut against the baffles. When the compression springs are in a compressed state, the upper ends of the lifting rods abut against the highest surface, the lowest surface or the arc surface.

[0010] Preferably, connecting plates are provided at the lower ends of the respective lifting rods. Thread holes for the outer wall of the upper end of the tea bin to be screwed into are formed in the lower end surfaces of the connecting plates. The periphery of the driving disk abuts against the inner wall of the cup lid. When the cup lid is screwed onto the cup body, the driving disk abuts against the upper end wall of the cup body.

[0011] Preferably, rollers that slide with the highest surface, the lowest surface and the arc surface are rotatably connected to the upper ends of the respective lifting rods. At this time, the axis of the roller is perpendicular to the length direction of the lifting rod.

[0012] Preferably, a sealing lid with an inverted U-shaped longitudinal section is threadedly connected to the outer wall of the cup lid at the end far from the cup body. There is a gap between the upper end of the inner wall of the sealing lid and the outer wall of the upper end of the cup lid. A hose is connected to the straw after the straw passes through the cup lid. The hose is located inside the sealing lid.

[0013] Preferably, the length direction of the tea bin is distributed along the length direction of the cup body. The two tea bins both include an upper plate, a lower plate and a plurality of railings provided on the periphery of the upper plate and connected to the lower plate. The size of the lower plate is smaller than that of the upper plate. Filter sheets are connected between adjacent railings of one of the tea bins. The upper plate is threadedly connected to the thread hole. An opening is formed in the upper plate.

[0014] Preferably, the upper and lower ends of two of the railings of the tea bin provided with the filter sheet are respectively detachably connected to the upper plate and the lower plate. The two detachable railings both include fixing plates fixedly connected to the upper plate and the lower plate and clamping rods clamped on the fixing plates. The filter sheet is arranged between the two clamping rods. Clamping grooves are formed in the fixing plates. Clamping blocks that enter the clamping grooves and are connected to the clamping grooves are provided on the clamping rods. The clamping rods are distributed along the length direction of the fixing plates.

[0015] Preferably, one end of the straw located inside the cup body is sleeved with a first telescopic tube, and the outer wall of the first telescopic tube is sleeved with a second telescopic tube. When the straw rotates, a power member for driving the first telescopic tube and the second telescopic tube to move is provided on the straw.

[0016] Preferably, the power member includes a hollow driving tube coaxially and fixedly arranged at one end of the straw located inside the cup body. The first telescopic tube and the second telescopic tube are both located inside the driving tube. The inner wall of the cup body is slidably connected with a push rod along the height direction of the cup body. The push rod extends to one end of the second telescopic tube away from the first telescopic tube and abuts against the second telescopic tube. The outer wall of the driving tube is provided with a helically distributed driving groove for the push rod to pass through.

[0017] Preferably, the lower end of the driving tube extends to the bottom of the inner wall of the cup body, and the height of the position where the push rod moves to the highest point is lower than the height of the bottom of the tea bin.

[0018] The beneficial effects of the present invention are as follows: The straw is arranged on the cup lid, which is convenient for the user to suck water. At the same time, tea leaves or other solid brewing substances, such as lemon slices, are put into the tea bin. At this time, the tea bin filters the tea leaves, so that when the straw sucks the water in the cup body, it is not easy to suck the tea leaves or other solid brewing substances together. At this time, the tea bin is equivalent to a filter screen, so that the tea bin and the drinking port are misaligned, reducing the occurrence of the tea bin falling out during drinking. In addition, the setting of the driving member is convenient for the user to rotate the straw to drive the tea bin to move, thereby accelerating the brewing speed of the tea leaves or solid brewing substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a schematic structural diagram of this embodiment;

[0021] Figure 2 is a schematic structural diagram of this embodiment for showing the straw;

[0022] Figure 3 is a schematic structural diagram of this embodiment for showing the cylinder;

[0023] Figure 4 is a schematic structural diagram of this embodiment for showing the tea bin;

[0024] Figure 5 is a schematic structural diagram of this embodiment for showing the filter sheet;

[0025] Figure 6 is a schematic structural diagram of the fixing plate in this embodiment;

[0026] Figure 7 is a schematic structural diagram of the driving groove in this embodiment;

[0027] Figure 8 is a schematic structural diagram of an existing thermos cup.

[0028] Explanation of reference numerals:

[0029] In the figure: 1, cup body; 11, cup lid; 12, straw; 13, tea bin; 131, upper plate; 132, lower plate; 133, railing; 14, cylinder; 141, lifting rod; 142, driving disc; 143, through hole; 144, highest surface; 145, lowest surface; 146, arc surface; 147, compression spring; 148, baffle; 149, connecting plate; 1491, threaded hole; 15, roller; 16, sealing cover; 161, hose; 17, filter sheet; 171, opening; 18, fixing plate; 181, clamping rod; 19, telescopic tube one; 191, telescopic tube two; 192, driving tube; 193, push rod; 194, driving groove; 2, filter net. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] A thermos cup, as shown in Figure 1 and Figure 2 , includes a cup body 1 and a cup lid 11 threadedly connected to the upper end of the cup body 1. When the cup lid 11 is screwed onto the outer wall of the cup body 1, the top of the inner wall of the cup lid 11 abuts against the upper end wall of the cup body 1, and a sealing ring is provided at the abutting position. A straw 12 passes through the middle of the cup lid 11. The straw 12 is rotatably connected to the cup lid 11, and both the upper and lower ends of the straw 12 pass through the cup lid 11. Tea bins 13 are provided on both sides of the straw 12 on the cup lid 11. When the straw 12 is rotated, a driving member for driving the two tea bins 13 to move up and down reciprocally is provided on the cup lid 11.

[0032] As shown in Figure 1 and Figure 2, the straw 12 is arranged on the cup lid 11 for the user to suck water. At the same time, tea leaves or other solid brewing materials, such as lemon slices, are put into the tea bin 13. At this time, the tea bin 13 filters the tea leaves, so that when the straw 12 sucks the water in the cup body 1, it is not easy to suck the tea leaves or other solid brewing materials together. At this time, the tea bin 13 is equivalent to the filter net 2, so that the tea bin 13 and the drinking port are distributed in a staggered manner, reducing the situation that the tea bin 13 falls out during drinking. In addition, the setting of the driving member facilitates the user to rotate the straw 12 to drive the tea bin 13 to move, thereby accelerating the brewing speed of the tea leaves or solid brewing materials.

[0033] As Figure 2 and Figure 3 , the driving member includes a hollow cylinder 14 fixedly arranged on one side of the cup lid 11 facing the cup body 1, and a lifting rod 141 detachably connected to the upper end of the tea bin 13. The cylinder 14 is coaxially distributed with the cup lid 11 and the straw 12 passes through the center of the cylinder 14. At this time, the cross-sections of the cup lid 11 and the cup body 1 are both circular, and a driving disk 142 is fixedly sleeved on the outer wall of the straw 12. Through holes 143 for two lifting rods 141 to pass through are formed in the driving disk 142, and the lifting rods 141 move up and down in the through holes 143. The cylinder 14 is provided with a relatively distributed highest surface 144 and lowest surface 145 and an arc surface 146 connecting the two ends of the highest surface 144 and the lowest surface 145 on the end wall facing away from the cup lid 11. Compression springs 147 are sleeved on the outer walls of the upper ends of the respective lifting rods 141 extending out of the driving disk 142, and baffles 148 are provided at the upper ends of the respective lifting rods 141. The lower ends of the compression springs 147 abut against the driving disk 142, and the upper ends abut against the baffles 148. When the compression springs 147 are in a compressed state, the upper ends of the lifting rods 141 abut against the highest surface 144 or the lowest surface 145 or the arc surface 146.

[0034] As Figure 2 and Figure 3, Working principle of the driving part: When the user rotates the straw 12, the straw 12 drives the driving disk 142 to rotate. The driving disk 142 drives the two lifting rods 141 to rotate around the center of the straw 12. During the rotation, due to the action of the compression spring 147, the lifting rod 141 will move from the highest surface 144 of the cylinder 14 to the lowest surface 145, or from the lowest surface 145 to the highest surface 144. The highest surface 144 is the side of the cylinder 14 closest to the cup body 1, and the lowest surface 145 is the side of the cylinder 14 farthest from the cup body 1. When moving from the highest surface 144 of the cylinder 14 to the lowest surface 145, the lower end of the lifting rod 141 will move upward under the elastic force of the compression spring 147. When moving from the lowest surface 145 to the highest surface 144, the lower end of the lifting rod 141 will gradually descend, causing the lifting rod 141 to drive the tea bin 13 to descend. Therefore, when a lifting rod 141 moves from the highest surface 144 to the lowest surface 145 and then from the lowest surface 145 to the highest surface 144, the lifting rod 141 moves upward and then downward, thereby driving the tea bin 13 to move up and down reciprocally. At this time, the tea leaves or solid brewing materials in the tea bin 13 also move up and down in the water in the cup body 1, accelerating the brewing speed of the tea leaves or solid brewing materials.

[0035] As Figure 2 and Figure 3 , A connecting plate 149 is provided at the lower end of each lifting rod 141. Threaded holes 1491 for screwing in the outer wall thread of the upper end of the tea bin 13 are provided on the lower end surface of the connecting plate 149. The periphery of the driving disk 142 abuts against the inner wall of the cup lid 11. When the cup lid 11 is screwed onto the cup body 1, the driving disk 142 abuts against the upper end wall of the cup body 1.

[0036] As Figure 2 and Figure 3 , The setting of the tea bin 13 facilitates the detachable installation of the tea bin 13 at the lower end of the connecting plate 149, facilitating the replacement of the tea leaves and solid brewing materials inside the tea bin 13.

[0037] As Figure 2 and Figure 3 , A roller 15 that slides on the highest surface 144, the lowest surface 145, and the arc surface 146 is rotatably connected to the upper end of each lifting rod 141. At this time, the axis of the roller 15 is perpendicular to the length direction of the lifting rod 141. At this time, the upper end of the lifting rod 141 is located in the hollow part inside the cylinder 14. A rotating shaft is rotatably connected to the upper end of the lifting rod 141, and the roller 15 is fixedly arranged on the rotating shaft, reducing the friction when the lifting rod 141 moves along the highest surface 144 and the lowest surface 145 on the cylinder 14.

[0038] As Figure 2 and Figure 3, at the outer wall of one end of the cup lid 11 away from the cup body 1, there is a sealing lid 16 with an inverted U-shaped longitudinal section threadedly connected. There is a gap between the upper end of the inner wall of the sealing lid 16 and the outer wall of the upper end of the cup lid 11. After the straw 12 passes through the cup lid 11, it is connected with a hose 161, and the hose 161 is located inside the sealing lid 16. When the sealing lid 16 is rotated, the hose 161 is distributed gradually inclined upward starting from the straw 12. Therefore, the end of the hose 161 away from the straw 12 is pressed to a position close to the height of the upper end of the straw 12. The setting of the hose 161 reduces the outflow of water in the straw 12. The rotational connection between the straw 12 and the cup lid 11 is a sealed rotational connection, reducing the outflow of water.

[0039] As Figure 2 and Figure 3 , when the user sucks water, just open the sealing lid 16 to suck water.

[0040] As Figure 2 and Figure 4 , the length direction of the tea bin 13 is distributed along the length direction of the cup body 1. Both tea bins 13 include an upper plate 131, a lower plate 132, and a number of railings 133 arranged around the upper plate 131 and connected to the lower plate 132. The size of the lower plate 132 is smaller than that of the upper plate 131. And between the adjacent railings 133 of one of the tea bins 13 is connected by a filter sheet 17. The upper plate 131 is threadedly connected with the threaded hole 1491, and an opening 171 is provided on the upper plate 131.

[0041] As Figure 2 and Figure 4 , at this time, it is convenient for the user to put tea leaves or other solid brewing materials through the opening 171 of the upper plate 131. A filter sheet 17 is provided on one of the tea bins 13 (as Figure 5 ), which is convenient for placing small brewing materials such as tea leaves and is convenient for intercepting the brewing materials. The other one only has railings 133 without a filter sheet 17, which is convenient for placing large solid brewing materials, such as lemon slices.

[0042] As Figure 2 and Figure 6 , in order to clean the filter sheet 17, the upper and lower ends of two of the railings 133 of the tea bin 13 provided with the filter sheet 17 are respectively detachably connected to the upper plate 131 and the lower plate 132. And the two detachable railings 133 both include a fixing plate 18 fixedly connected to the upper plate 131 and the lower plate 132, and a clamping rod 181 clamped on the fixing plate 18. The filter sheet 17 is arranged between the two clamping rods 181. A clamping groove (not shown in the figure) is provided on the fixing plate 18, and a clamping block that enters the clamping groove and is connected to the clamping groove is provided on the clamping rod 181. The clamping rod 181 is distributed along the length direction of the fixing plate 18.

[0043] As Figure 2 and Figure 6, when it is necessary to clean the filter 17, pull the clamping rod 181 from the fixed rod so that the clamping block is pulled out of the clamping groove, thereby facilitating the cleaning of impurities in the tea bin 13. When it is not necessary to clean the filter 17, snap the clamping block into the clamping groove so that the clamping rod 181 is clamped with the fixing plate 18, and then the disassembled filter 17 is fixed on the upper plate 131 and the lower plate 132 again.

[0044] As Figure 2 and Figure 7 , in order to be able to rotate the straw 12 and facilitate adjusting the height position of the lowermost end of the straw 12 inside the cup body 1, a first telescopic tube 19 is sleeved on the outer wall of the end of the straw 12 located inside the cup body 1, and a second telescopic tube 191 is sleeved on the outer wall of the first telescopic tube 19. When the straw 12 rotates, a power member for driving the first telescopic tube 19 and the second telescopic tube 191 to move is provided on the straw 12.

[0045] As Figure 2 and Figure 7 , the power member includes a hollow drive tube 192 coaxially and fixedly arranged at the end of the straw 12 located inside the cup body 1. The first telescopic tube 19 and the second telescopic tube 191 are both located inside the drive tube 192. A push rod 193 is slidably connected to the inner wall of the cup body 1 along the height direction of the cup body 1. The push rod 193 extends to the end of the second telescopic tube 191 away from the first telescopic tube 19 and abuts against the second telescopic tube 191. A helically distributed drive groove 194 for the push rod 193 to pass through is provided on the outer wall of the drive tube 192.

[0046] As Figure 2 and Figure 7 , when the user rotates the straw 12, it drives the drive tube 192 to rotate. The rotating drive tube 192 drives the push rod 193 to gradually move upward or downward through the drive groove 194. During the process of the push rod 193 moving upward, it pushes the second telescopic tube 191 to move upward. During the process of the push rod 193 moving downward, the second telescopic tube 191 moves downward due to gravity, thereby changing the height position of the water sucked by the straw 12, and further reducing the straw 12 from approaching the bottom of the cup body 1 and sucking impurities at the bottom of the cup body 1.

[0047] As Figure 2 and Figure 7 , the lower end of the drive tube 192 extends to the bottom of the inner wall of the cup body 1. The height position of the push rod 193 at the highest point is lower than the height of the bottom of the tea bin 13, and there is a gap between the upper end of the first telescopic tube 19 and the inner wall of the upper end of the drive tube 192. When the push rod 193 moves to the lowest point, one end of the first telescopic rod is still located on the outer wall of the straw 12, and one end of the second telescopic tube 191 is still located on the outer wall of the first telescopic tube 19. Thus, when the tea bin 13 rotates, the push rod 193 will not affect the rotation of the tea bin 13.

[0048] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A heat-insulated cup, comprising a cup body (1) and a cup lid (11) threadedly connected to the upper end of the cup body (1), characterized in that, A straw (12) is inserted through the middle of the cup lid (11). The straw (12) is rotatably connected to the cup lid (11), and both the upper and lower ends of the straw (12) extend out of the cup lid (11). Tea storage bins (13) are provided on both sides of the straw (12) on the cup lid (11). When the straw (12) is rotated, a driving member for driving the two tea storage bins (13) to move up and down reciprocally is provided on the cup lid (11). The driving member includes a hollow cylinder (14) fixedly provided on the side of the cup lid (11) facing the cup body (1), and a lifting rod (141) detachably connected to the upper end of the tea storage bin (13). The cylinder (14) is coaxially distributed with the cup lid (11), and the straw (12) passes through the center of the cylinder (14). A driving disk (142) is fixedly sleeved on the outer wall of the straw (12). Through holes (143) for the two lifting rods (141) to pass through are formed in the driving disk (142). The lifting rods (141) move up and down in the through holes (143). On the end wall of the cylinder (14) facing away from the cup lid (11), a relatively distributed highest surface (144) and lowest surface (145) and an arc surface (146) connecting the two ends of the highest surface (144) and lowest surface (145) are provided. Compression springs (147) are sleeved on the outer walls of the upper ends of the respective lifting rods (141) extending out of the driving disk (142). A baffle (148) is provided at the upper end of each lifting rod (141). The lower end of the compression spring (147) abuts against the driving disk (142), and the upper end abuts against the baffle (148). When the compression spring (147) is in a compressed state, the upper end of the lifting rod (141) abuts against the highest surface (144) or lowest surface (145) or arc surface (146).

2. The thermos cup according to claim 1, wherein A connecting plate (149) is provided at the lower end of each lifting rod (141). Threaded holes (1491) for the outer wall of the upper end of the tea storage bin (13) to be screwed into are formed on the lower end surfaces of the connecting plates (149). The periphery of the driving disk (142) abuts against the inner wall of the cup lid (11). When the cup lid (11) is screwed onto the cup body (1), the driving disk (142) abuts against the upper end wall of the cup body (1).

3. A heat-insulated cup according to claim 1 or 2, characterized in that, A roller (15) that slides with the highest surface (144), lowest surface (145), and arc surface (146) is rotatably connected to the upper end of each lifting rod (141). At this time, the axis of the roller (15) is perpendicular to the length direction of the lifting rod (141).

4. A thermos cup as claimed in claim 1, wherein, A sealing cover (16) with an inverted U-shaped longitudinal section is threadedly connected to the outer wall of the cup lid (11) at the end away from the cup body (1). There is a gap between the upper end of the inner wall of the sealing cover (16) and the upper outer wall of the cup lid (11). A flexible tube (161) is connected to the straw (12) after it extends out of the cup lid (11). The flexible tube (161) is located inside the sealing cover (16).

5. A thermos cup according to claim 2, wherein The length direction of the tea bin (13) is distributed along the length direction of the cup body (1). The two tea bins (13) both include an upper tray (131) and a lower tray (132) as well as a plurality of railings (133) arranged around the upper tray (131) and connected to the lower tray (132). The size of the lower tray (132) is smaller than that of the upper tray (131). And the adjacent railings (133) of one of the tea bins (13) are connected by a filter sheet (17). The upper tray (131) is threadedly connected to the threaded hole (1491), and an opening (171) is provided on the upper tray (131).

6. The thermos cup according to claim 5, characterized in that, The upper and lower ends of two of the railings (133) of the tea bin (13) provided with the filter sheet (17) are respectively detachably connected to the upper tray (131) and the lower tray (132). And the two detachable railings (133) both include a fixing plate (18) fixedly connected to the upper tray (131) and the lower tray (132) and a clamping rod (181) clamped on the fixing plate (18). The filter sheet (17) is arranged between the two clamping rods (181). A clamping groove is provided on the fixing plate (18), and a clamping block that enters the clamping groove and is connected to the clamping groove is provided on the clamping rod (181). The clamping rods (181) are distributed along the length direction of the fixing plate (18).

7. The thermos cup according to claim 6, characterized in that, One end of the straw (12) located inside the cup body (1) is sleeved with a first telescopic tube (19) on its outer wall, and the first telescopic tube (19) is sleeved with a second telescopic tube (191) on its outer wall. When the straw (12) rotates, a power member for driving the first telescopic tube (19) and the second telescopic tube (191) to move is provided on the straw (12).

8. A heat-insulated cup according to claim 7, characterized in that, The power member includes a hollow driving tube (192) coaxially and fixedly arranged at one end of the straw (12) located inside the cup body (1). The first telescopic tube (19) and the second telescopic tube (191) are both located inside the driving tube (192). A push rod (193) is slidably connected to the inner wall of the cup body (1) along the height direction of the cup body (1). The push rod (193) extends to one end of the second telescopic tube (191) away from the first telescopic tube (19) and abuts against the second telescopic tube (191). A helically distributed driving groove (194) for the push rod (193) to pass through is provided on the outer wall of the driving tube (192).

9. A heat-insulated cup according to claim 8, characterized in that, The lower end of the driving tube (192) extends to the bottom of the inner wall of the cup body (1), and the height of the position where the push rod (193) moves to the highest point is lower than the height where the bottom of the tea bin (13) is located.

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