A lightweight outdoor sports thermos cup

Abstract

This utility model discloses a lightweight outdoor sports thermos cup, including a cup body, a support lid, and a cup lid. The cup body has a double-layer vacuum structure. The support lid is threaded to the inner wall of the top opening of the cup body, and the cup lid is threaded to the outer wall of the top opening of the cup body, covering the outside of the support lid. The support lid has a straw inlet and a pouring spout. The top end of the straw inlet is fixedly connected to an upwardly extending straw. A magnetic cap is fitted over the straw, and a magnetic attraction mechanism is provided between the magnetic cap and the support lid. A support ring is fixedly provided on the top of the support lid, and a fastening mechanism for controlling the opening and closing of the pouring spout is provided between the support ring and the support lid. This utility model belongs to the field of thermos cup technology, specifically a lightweight outdoor sports thermos cup.

Description

Technical Field

[0001] This utility model belongs to the field of thermos cup technology, specifically referring to a lightweight outdoor sports thermos cup. Background Technology

[0002] With the increasing popularity of outdoor sports (such as running, cycling, and mountaineering), the ease of use, reliable sealing, and adaptability to various scenarios have become core user requirements for portable drinking equipment like outdoor sports insulated water bottles. However, existing outdoor sports insulated water bottles still have the following key technical pain points in practical applications, making it difficult to meet the efficient use requirements of sports scenarios: The convenience and anti-loss features of drinking with straws are insufficient: Most existing insulated cups with straws use snap-on or threaded straw lids, which require both hands to open and close (such as unscrewing the threaded lid or prying open the snap), making them unsuitable for one-handed operation during exercise; moreover, the straw lid and the cup body are mostly designed separately, making them easy to lose during opening and closing, resulting in the straw being exposed and contaminated. Poor coordination between the pouring spout operation and sealing: Although some thermos cups are equipped with a pouring spout, the opening and closing of the spout mostly rely on purely mechanical buckles (such as push-to-open type), without an automatic reset function. After use, it is necessary to manually close it, which is cumbersome. Moreover, the sealing structure only relies on rigid plugs (such as plastic plugs), which cannot fill the gap between the pouring spout and the plug. In outdoor bumpy environments, the pouring spout is prone to leakage due to poor sealing, affecting the user experience. Utility Model Content

[0003] To address the aforementioned problems with existing outdoor sports insulated cups, such as inconvenient one-handed operation with straws, easy loss of straw caps, lack of automatic reset function for the pouring spout and unreliable sealing, cumbersome disassembly and maintenance, and poor portability, this utility model provides a lightweight outdoor sports insulated cup.

[0004] To achieve the above functions, the technical solution adopted by this utility model is as follows: a lightweight outdoor sports thermos cup, including a cup body, a support lid and a cup lid, wherein the cup body is a double-layer vacuum structure; The support cover is threaded to the inner wall of the opening at the top of the cup body, and the cup lid is threaded to the outer wall of the opening at the top of the cup body and covers the outside of the support cover. The support cover is provided with a suction tube opening and a water outlet; The top end of the straw opening is fixedly connected to an upwardly extending straw; The straw is covered with a magnetic cap, and a magnetic attraction mechanism is provided between the magnetic cap and the support cap; A support ring is fixedly installed on the top of the support cover, and a fastening mechanism for controlling the opening and closing of the drain outlet is provided between the support ring and the support cover.

[0005] Furthermore, the fastening mechanism includes a plug that covers the drain outlet, an arc-shaped wrench fixedly connected to the end of the plug away from the drain outlet, a rotating shaft fixed to the bottom end of the arc-shaped wrench, a torsion spring sleeved on the rotating shaft, and an auxiliary magnetic suction assembly. The outer periphery shape of the plug matches the shape of the support ring; The arc-shaped wrench is positioned perpendicular to the plug. The rotating shaft is rotatably connected to the support ring; One end of the torsion spring is fixed inside the arc-shaped wrench, and the other end is fixed inside the slot opened on the top of the support cover; The auxiliary magnetic suction component is disposed between the plug and the support ring.

[0006] Furthermore, the auxiliary magnetic suction assembly includes a first mounting groove symmetrically opened on two opposite outer walls of the plug, an inner magnetic suction block adapted to be installed in the first mounting groove, a second mounting groove corresponding to the first mounting groove opened inside the support ring, and an outer magnetic suction block adapted to be installed in the second mounting groove. The inner magnetic block and the outer magnetic block are magnetically attracted to each other.

[0007] Furthermore, a rubber plug is installed on the inner side of the plug; The rubber plug engages with the top of the drain outlet.

[0008] Furthermore, the magnetic attraction mechanism includes a first annular groove formed at the bottom of the magnetic cover, an upper magnetic ring adapted to be installed in the first annular groove, a second annular groove formed inside the support cover corresponding to the first annular groove, a lower magnetic ring adapted to be installed in the second annular groove, and a connecting rope fixed to the outer end of the bottom of the magnetic cover. The upper magnetic ring and the lower magnetic ring are magnetically attracted to each other.

[0009] Furthermore, a locking block is fixed to the top of the support cover, and the extension end of the connecting rope is movably locked onto the locking block; The outer periphery of the support cover is provided with external threads.

[0010] Furthermore, a rubber plug is fixedly installed at the top inside the magnetic cover; The rubber plug engages at the top opening of the straw.

[0011] Furthermore, the inner wall of the cup lid is provided with internal threads; The outer wall of the cup lid is vertically and evenly provided with several sets of friction stripes.

[0012] Furthermore, a connecting cup opening is fixedly installed on the top of the cup body. The outer wall of the connecting cup opening is provided with an external thread that mates with the internal thread of the cup lid, and its inner wall is provided with an internal thread that mates with the external thread of the support cover. The outer wall of the cup is provided with two sets of limiting rings of different diameters, and a rubber cup sleeve is movably connected between the two sets of limiting rings.

[0013] Furthermore, buckles are symmetrically fixedly installed on both sides of the rubber cup sleeve, and snap rings are movably engaged on the buckles; An adjustable-length back strap is fixed to the clasp.

[0014] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure: 1. A highly efficient and reliable spout sealing system is constructed through the coordinated design of a snap-fit ​​mechanism, a rubber plug, and an auxiliary magnetic suction component. Users can easily open the spout for direct drinking by pressing the arc-shaped lever with one hand; it automatically closes under the action of a torsion spring after being released, making operation extremely convenient. When closed, the magnetic force provided by the auxiliary magnetic suction component and the restoring force of the torsion spring work together to ensure that the rubber plug is tightly pressed against the spout, forming an elastic seal. This significantly improves sealing reliability and effectively prevents liquid leakage under bumpy outdoor conditions.

[0015] 2. The magnetic mechanism enables quick opening and closing of the straw opening and reliable sealing. The annular magnetic structure allows the magnetic cap to precisely attach to the support cap at any angle, and the opening and closing action can be completed with one hand, with a rapid response, greatly improving the convenience of drinking. Simultaneously, the rubber plug integrated inside the magnetic cap tightly engages with the straw opening when closed, forming a second flexible seal. Combined with the initial seal of the annular magnetic cap, this double protection ensures the sealing effect of the straw channel and prevents leakage. The cooperation between the connecting rope and the locking block effectively prevents the magnetic cap from being lost, improving the overall durability of the product and the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a lightweight outdoor sports thermos cup proposed in this utility model; Figure 2 An exploded view of a portion of the structural schematic diagram proposed in this utility model; Figure 3 This is a cross-sectional view of a lightweight outdoor sports thermos cup proposed in this utility model; Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 A cross-sectional view of the support cover, fastening mechanism, and magnetic cover proposed in this utility model. Figure 1 ; Figure 6 A cross-sectional view of the support cover, fastening mechanism, and magnetic cover proposed in this utility model. Figure 2 .

[0017] Among them, 1. Cup body, 11. Connecting cup mouth, 12. Limiting ring, 13. Rubber cup sleeve, 14. Buckle, 15. Snap ring, 16. Back rope, 17. Double-layer vacuum structure, 2. Support cover, 21. Straw, 22. Magnetic cover, 221. Magnetic attraction mechanism, 2211. Upper magnetic ring, 2212. Lower magnetic ring, 2213. Connecting rope, 222. Rubber plug, 23. Pouring spout, 24. Support ring, 25. Fastening mechanism, 251. Plug, 2511. Rubber plug, 252. Arc wrench, 253. Rotating shaft, 254. Torsion spring, 255. Auxiliary magnetic attraction component, 2551. Inner magnetic block, 2552. Outer magnetic block, 26. Locking block, 27. External thread, 28. Groove, 3. Cup lid, 31. Friction stripes. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-6As shown, this utility model provides a lightweight outdoor sports thermos cup, including a cup body 1, a support lid 2, and a cup lid 3. The cup body 1 has a double-layer vacuum structure 17 to achieve excellent heat preservation performance and reduce weight, meeting the needs of outdoor sports. The inner wall of the cup lid 3 is provided with internal threads. The outer wall of the cup lid 3 is provided with several sets of friction stripes 31 evenly arranged vertically, which can increase the friction between the hand and the outer wall of the cup lid 3, making it easy for the user to unscrew or tighten the cup lid 3 when the hands are sweaty or when wearing gloves. The support lid 2 is connected to the inner wall of the top opening of the cup body 1 by threads, and the cup lid 3 is connected to the outer wall of the top opening of the cup body 1 by threads, and covers the outside of the support lid 2. This connection structure has the advantages of stability and good sealing. At the same time, the cup lid 3, as the first barrier, provides effective physical protection for the internal precision support lid 2 and its functional components (such as straw 21 and fastening mechanism 25), avoiding damage caused by external collisions, pollution, or accidental impacts. The support cover 2 has a straw 21 opening and a water pouring spout 23. The straw 21 opening is suitable for convenient, small sips of water during exercise; the water pouring spout 23 is suitable for large gulps of direct drinking or pouring water into the cup lid 3 for drinking. The top of the straw 21 opening is fixedly connected to an upward-extending straw 21, which is directly connected to the opening for easy use. The straw 21 is covered by a magnetic cap 22, and a magnetic attraction mechanism 221 is provided between the magnetic cap 22 and the support cover 2. The magnetic attraction mechanism 221 enables the magnetic cap 22 and the support cover 2 to be detachably closed. The magnetic attraction has the characteristics of opening and closing without complicated operation and rapid response. Compared with the traditional buckle 14 or threaded structure, it can greatly simplify the opening and closing steps of the magnetic cap 22 and meet the need for quick one-handed opening and closing during exercise. A support ring 24 is fixedly provided on the top of the support cover 2, and a fastening mechanism 25 for controlling the opening and closing of the water pouring spout 23 is provided between the support ring 24 and the support cover 2.

[0022] like Figure 2 , 3As shown in Figures 5 and 6, the fastening mechanism 25 includes a plug 251 that covers the drain outlet 23, an arc-shaped wrench 252 fixedly connected to the end of the plug 251 away from the drain outlet 23, a rotating shaft 253 fixed to the bottom of the arc-shaped wrench 252, a torsion spring 254 sleeved on the rotating shaft 253, and an auxiliary magnetic suction component 255. The outer circumferential shape of the plug 251 matches the shape of the support ring 24, improving the sealing performance by matching the shape of the support ring 24, while directly covering the drain outlet 23 to achieve physical sealing. The arc-shaped wrench 252 is set perpendicular to the plug 251. As an operating component, the arc-shaped wrench 252's perpendicular setting to the plug 251 is ergonomic and facilitates one-handed application of force. The rotating shaft 253 is rotatably connected to the support ring 24, enabling the arc-shaped wrench 252 to rotate and connect with the support ring 24. The cap 251 is provided with a rotation fulcrum for opening and closing; one end of the torsion spring 254 is fixed in the arc-shaped wrench 252 and the other end is fixed in the slot 28 opened on the top of the support cap 2. The torsion spring 254 generates a restoring force through its own elastic deformation, which can drive the cap 251 to close automatically when the arc-shaped wrench 252 is released; the auxiliary magnetic component 255 is set between the cap 251 and the support ring 24 to provide an adsorption force when the cap 251 is closed, further improving the sealing performance of the drain outlet 23 when closed; a rubber plug 2511 is installed on the inner side of the cap 251; the rubber plug 2511 is engaged with the top of the drain outlet 23, and the elasticity of the rubber plug 2511 can fill the gap between the drain outlet 23 and the plug to form a flexible seal. Compared with a hard seal, it can more effectively improve the sealing performance of the drain outlet 23 and prevent liquid leakage. When it is necessary to open the pouring spout 23, apply downward pressure to the curved wrench 252. The curved wrench 252 rotates around the pivot 253 and compresses the torsion spring 254. Simultaneously, the plug 251, which is fixedly connected to it, rotates and disengages from the pouring spout 23, so that the pouring spout 23 is fully exposed, and the liquid in the cup 1 can be poured out through the pouring spout 23. When it is necessary to close the pouring spout 23, release the pressure on the curved wrench 252. The torsion spring 254 releases its restoring force and drives the curved wrench 252 to rotate in the opposite direction around the pivot 253. The plug 251 resets synchronously with the curved wrench 252 and closes again on the pouring spout 23, thus sealing the pouring spout 23.

[0023] like Figure 6As shown, the auxiliary magnetic suction assembly 255 includes a first mounting groove symmetrically opened on two opposite outer walls of the plug 251, an inner magnetic suction block 2551 adapted to be installed in the first mounting groove, a second mounting groove corresponding to the first mounting groove opened inside the support ring 24, and an outer magnetic suction block 2552 adapted to be installed in the second mounting groove. The inner magnetic suction block 2551 and the outer magnetic suction block 2552 magnetically cooperate, and the magnetic attraction force of the inner magnetic suction block 2551 and the outer magnetic suction block 2552 can enhance the fit stability between the plug 251 and the support ring 24. This stability provides a continuous and stable clamping force for the rubber plug 2511 on the inner side of the plug 251, ensuring that it is tightly locked and fully fills the gap at the top of the drain outlet 23. The auxiliary magnetic suction assembly 255 and the torsion spring 254 complement each other in their reset function. The torsion spring 254 is responsible for automatic reset and closure, while the magnetic suction assembly is responsible for strengthening the sealing effect and structural stability after closure, jointly meeting the high sealing requirements in outdoor sports scenarios.

[0024] like Figure 2-4 As shown in Figure 6, the magnetic attraction mechanism 221 includes a first annular groove formed at the bottom of the magnetic cover 22, an upper magnetic ring 2211 adapted to be installed in the first annular groove, a second annular groove formed inside the support cover 2 corresponding to the first annular groove, a lower magnetic ring 2212 adapted to be installed in the second annular groove, and a connecting rope 2213 fixed to the outer end of the bottom of the magnetic cover 22; a locking block 26 is fixed to the top of the support cover 2, and the extension end of the connecting rope 2213 is movably locked onto the locking block 26, which can prevent the magnetic cover 22 from being lost when opening and closing, and improve the convenience of product use and component integrity; the support cover The outer periphery of 2 is provided with an external thread 27; the upper magnetic ring 2211 and the lower magnetic ring 2212 are magnetically attracted to each other; a rubber plug 222 is fixedly installed inside the top of the magnetic cover 22; the rubber plug 222 is engaged at the top opening of the straw 21. When the magnetic cover 22 is closed, the rubber plug 222 is engaged at the top opening of the straw 21. By utilizing the elastic deformation characteristics of rubber, the gap between the rubber plug 222 and the opening of the straw 21 is filled to form a flexible seal, which effectively prevents the liquid in the cup from leaking from the opening of the straw 21. At the same time, the rubber material is soft and avoids wear on the opening of the straw 21. The ring-shaped magnetic structure, compared to the traditional point or block magnetic design, allows the adsorption force to be evenly distributed around the entire contact circumference of the magnetic cover 22 and the support cover 2. This not only improves the structural stability of the magnetic cover 22 after it is closed, but also allows the contact surfaces of the magnetic cover 22 and the support cover 2 to form a ring-shaped sealing base, thus enhancing the sealing performance. Through the magnetic attraction between the upper magnetic ring 2211 and the lower magnetic ring 2212, the magnetic cover 22 and the support cover 2 can be opened and closed quickly and reliably fixed.

[0025] like Figure 1-5As shown, a connecting cup opening 11 is fixedly installed on the top of the cup body 1. The outer wall of the connecting cup opening 11 is provided with an external thread that mates with the internal thread of the cup lid 3, and its inner wall is provided with an internal thread that mates with the external thread 27 of the support cover 2. The connecting cup opening 11 serves as an intermediate connector. By mates with the internal thread of the inner wall of the cup lid 3 and with the external thread of the outer wall of the support cover 2, the cup lid 3, the support cover 2 and the cup body 1 can be quickly and easily disassembled and assembled. At the same time, the disassembled structure with double thread mates makes it easy for users to disassemble the cup lid 3 (such as temporarily removing the function of the support cover 2) or disassemble the support cover 2 (such as cleaning the inside of the cup body 1) according to their needs. The operation is flexible and convenient to meet the requirements of assembly efficiency and maintenance convenience in outdoor sports scenarios. Two sets of limiting rings 12 of different diameters are provided on the outer wall of the cup body 1. A rubber cup sleeve 13 is movably sleeved between the two sets of limiting rings 12. The limiting rings 12 can prevent the rubber cup sleeve 13 from sliding up and down along the outer wall of the cup body 1, ensuring the stability of the cup sleeve position. The rubber cup sleeve 13 can play a role in preventing burns and drops, avoiding burns to the user when touching the cup body 1, and reducing damage to the cup body 1 when it is impacted. Buckles 14 are symmetrically fixed on both sides of the rubber cup sleeve 13. Buckles 14 are movably engaged with rings 15. The movable engagement structure between buckles 14 and rings 15 enables the detachable connection between the carrying strap 16 and the rubber cup sleeve 13, making it easy to replace or remove the carrying strap 16. An adjustable carrying strap 16 is fixed on the rings 15. The adjustable carrying strap 16 can be adapted to different users' heights and usage habits, making it convenient for users to carry the thermos cup with the carrying strap 16, improving the product's portability and meeting the needs of outdoor sports scenarios.

[0026] In practical use: 1. Drinking operation using straw 21: When drinking through straw 21, use your finger to apply upward force to open the magnetic cover 22. Since the connecting cord 2213 on the magnetic cover 22 is engaged with the locking block 26, it effectively prevents the magnetic cover 22 from detaching and being lost. After opening the magnetic cover 22, the straw 21 is exposed, allowing for direct sips of water. After drinking, close the magnetic cover 22 to the corresponding position on the support cover 2. At this time, the rubber stopper 222 fixed at the top of the magnetic cover 22 automatically engages and presses against the top opening of the straw 21. Simultaneously, the upper magnetic ring 2211 and the lower magnetic ring 2212 magnetically engage, ensuring a seal at the straw 21 opening and preventing liquid leakage from the cup.

[0027] 2. Direct drinking or pouring operation through the pouring spout 23: When it is necessary to drink or pour water through the pouring spout 23, apply downward pressure to the curved wrench 252 with one finger; the curved wrench 252 rotates around the pivot 253 fixed at its bottom end, simultaneously compressing the torsion spring 254 sleeved on the pivot 253, and causing the cap 251 fixedly connected to the curved wrench 252 to rotate and disengage from the pouring spout 23, so that the pouring spout 23 is fully exposed. At this time, you can drink directly from the pouring spout 23, or pour the liquid in the cup body 1 into the cup lid 3 (as a temporary container). After drinking or pouring water, release the pressure on the arc-shaped wrench 252. The torsion spring 254 releases the reset force, driving the arc-shaped wrench 252 to rotate in the opposite direction around the pivot 253. The plug 251 resets synchronously with the arc-shaped wrench 252. With the magnetic attraction of the auxiliary magnetic attraction component 255 between the plug 251 and the support ring 24, the plug 251 tightly covers the water outlet 23. The rubber plug 2511 installed inside the plug 251 locks and fills the gap at the top of the water outlet 23, thus sealing the water outlet 23 and preventing liquid leakage.

[0028] 3. Disassembly and carrying operation: When it is necessary to clean the inside of the cup body 1 or to fill the cup body 1 with water, hold the friction stripes 31 set vertically on the outer wall of the cup lid 3, and twist the cup lid 3 so that the internal thread of its inner wall is disengaged from the external thread of the outer wall of the cup mouth 11 connected to the top of the cup body 1. After removing the cup lid 3, the support cover 2 is fully exposed; continue to twist the support cover 2 so that the external thread 27 of its outer circumference is disengaged from the internal thread of the inner wall of the cup mouth 11. The support cover 2 can then be removed, and the inside of the cup body 1 can be thoroughly cleaned or filled with water.

[0029] When carried, the rubber cup sleeve 13, which is movably connected between the two sets of limiting rings 12 on the outer wall of the cup body 1, can play a role in preventing scalding and slipping. Through the movable snap-fit ​​structure of the buckles 14 and the snap rings 15 symmetrically fixed on both sides of the rubber cup sleeve 13, the adjustable back strap 16 can be assembled in place. Users can adjust the length of the back strap 16 according to their own needs to carry it by hand or on their back, effectively freeing their hands and adapting to outdoor sports scenarios.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A lightweight outdoor sports thermos cup, comprising a cup body (1), a support cover (2), and a cup lid (3), wherein the support cover (2) is threadedly connected to the inner wall of the top opening of the cup body (1), and the cup lid (3) is threadedly connected to the outer wall of the top opening of the cup body (1) and covers the outside of the support cover (2), characterized in that: The cup body (1) has a double-layer vacuum structure (17). The support cover (2) is provided with a straw (21) opening and a water outlet (23); The top end of the straw (21) is fixedly connected to an upwardly extending straw (21). The straw (21) is covered with a magnetic cap (22), and a magnetic suction mechanism (221) is provided between the magnetic cap (22) and the support cap (2). A support ring (24) is fixedly provided on the top of the support cover (2), and a fastening mechanism (25) is provided between the support ring (24) and the support cover (2).

2. The lightweight outdoor sports thermos cup according to claim 1, characterized in that: The fastening mechanism (25) includes a plug (251) covering the drain outlet (23), an arc-shaped wrench (252) fixedly connected to the end of the plug (251) away from the drain outlet (23), a rotating shaft (253) fixed to the bottom end of the arc-shaped wrench (252), a torsion spring (254) sleeved on the rotating shaft (253), and an auxiliary magnetic suction assembly (255). The outer periphery shape of the plug (251) matches the shape of the support ring (24); The arc-shaped wrench (252) is set perpendicular to the plug (251); The rotating shaft (253) is rotatably connected to the support ring (24); One end of the torsion spring (254) is fixed inside the arc-shaped wrench (252), and the other end is fixed inside the slot (28) opened on the top of the support cover (2); The auxiliary magnetic suction component (255) is disposed between the plug (251) and the support ring (24).

3. The lightweight outdoor sports thermos cup according to claim 2, characterized in that: The auxiliary magnetic suction assembly (255) includes a first mounting groove symmetrically opened on two opposite outer walls of the plug (251), an inner magnetic suction block (2551) adapted to be installed in the first mounting groove, a second mounting groove corresponding to the first mounting groove opened inside the support ring (24), and an outer magnetic suction block (2552) adapted to be installed in the second mounting groove. The inner magnetic block (2551) and the outer magnetic block (2552) are magnetically attracted to each other.

4. A lightweight outdoor sports thermos cup according to any one of claims 2 or 3, characterized in that: A rubber plug (2511) is installed on the inside of the plug (251). The rubber plug (2511) engages with the top of the drain outlet (23).

5. A lightweight outdoor sports thermos cup according to claim 1, characterized in that: The magnetic attraction mechanism (221) includes a first annular groove at the bottom of the magnetic cover (22), an upper magnetic ring (2211) adapted to be installed in the first annular groove, a second annular groove corresponding to the first annular groove at the inside of the support cover (2), a lower magnetic ring (2212) adapted to be installed in the second annular groove, and a connecting rope (2213) fixed at the bottom outer end of the magnetic cover (22). The upper magnetic ring (2211) and the lower magnetic ring (2212) are magnetically attracted to each other.

6. A lightweight outdoor sports thermos cup according to claim 5, characterized in that: The top of the support cover (2) is fixed with a locking block (26), and the extension end of the connecting rope (2213) is movably locked onto the locking block (26); The outer periphery of the support cover (2) is provided with external threads (27).

7. A lightweight outdoor sports thermos cup according to claim 1, characterized in that: A rubber plug (222) is fixedly installed on the top of the inner side of the magnetic cover (22); The rubber plug (222) is engaged at the top opening of the straw (21).

8. A lightweight outdoor sports thermos cup according to claim 1, characterized in that: The inner wall of the cup lid (3) is provided with internal threads; The outer wall of the cup lid (3) is vertically and evenly provided with several sets of friction stripes (31).

9. A lightweight outdoor sports thermos cup according to claim 8, characterized in that: The top of the cup body (1) is fixedly installed with a connecting cup mouth (11). The outer wall of the connecting cup mouth (11) is provided with an external thread that mates with the internal thread of the cup lid (3), and its inner wall is provided with an internal thread that mates with the external thread (27) of the support cover (2). The outer wall of the cup body (1) is provided with two sets of limiting rings (12) of different diameters, and a rubber cup sleeve (13) is movably connected between the two sets of limiting rings (12).

10. A lightweight outdoor sports thermos cup according to claim 9, characterized in that: The rubber cup sleeve (13) is symmetrically fixedly installed with buckles (14) on both sides, and a retaining ring (15) is movably engaged on the buckle (14). An adjustable back strap (16) is fixed to the clasp (15).

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