Negative pressure spray type double-layer drinking cup

Abstract

The utility model belongs to the technical field of water cups, and particularly discloses a negative pressure spray type double-layer drinking cup which comprises a cup cover and a cup body, the cup cover covers the cup body, a water pump and an atomizing nozzle are arranged in the cup cover, a spray portion of the atomizing nozzle is exposed out of the cup cover, and a water outlet hole is formed in the top of the cup body. A water inlet end and a water outlet end of the water pump are respectively communicated with the water outlet hole and the atomizing nozzle, the liner and the shell of the cup body are arranged at an interval to form a negative pressure space, a water inlet hole is formed in the bottom of the liner, and the water inlet hole is communicated with the water outlet hole through the negative pressure space. The water pump and the atomization nozzle are integrated in the cup cover, the atomization function is achieved, meanwhile, the cup body is of a double-layer structure of the inner container and the outer shell, the gap is reserved between the inner container and the outer shell, the negative pressure space is formed, the water inlet hole formed in the bottom of the inner container can be connected with the water outlet hole through the negative pressure space, and an efficient water flow circulation system is formed. Water in the cup body can be sucked without a straw, and instant atomization and cooling of the water are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of water cup technology, and in particular relates to a negative pressure spray type double-walled drinking cup. Background Technology

[0002] As people's living standards improve and their health awareness increases, existing drinking methods can no longer meet the diverse needs of modern people for drinking tools. Although various water cups exist on the market, most of them adopt a design that inserts the water pump straw directly into the cup body to achieve water extraction and spraying. However, this design still has many shortcomings in terms of user experience, health benefits, and environmental adaptability.

[0003] Especially in situations requiring immediate cooling or a more delicate, even drinking experience, the limitations of existing water cups are particularly apparent. The design of the straw being inserted directly into the cup often results in obstructed water flow, low pump efficiency, and difficulty in achieving adequate atomization and cooling. Furthermore, this design makes it easy for bacteria to grow at the contact point between the straw and the cup, compromising the hygiene and safety of the drinking water.

[0004] Therefore, the inventors dedicated themselves to designing a drinking cup to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a negative pressure spray double-walled drinking cup that can instantly atomize and cool water without the need for a straw, thereby enhancing the fun and comfort of drinking water and bringing users a healthier, more convenient and comfortable drinking experience.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A negative pressure spray-type double-walled drinking cup includes a lid and a cup body. The lid is placed on the cup body, and a water pump and an atomizing nozzle are disposed inside the lid. The spraying part of the atomizing nozzle is exposed on the lid. A water outlet is provided at the top of the cup body. The water inlet and outlet of the water pump are respectively connected to the water outlet and the atomizing nozzle. A negative pressure space is formed between the inner liner and the outer shell of the cup body. A water inlet is provided at the bottom of the inner liner, and the water inlet is connected to the water outlet through the negative pressure space.

[0008] As an improvement of the negative pressure spray double-walled drinking cup of this utility model, the cup lid includes a lid body, a lid shell, and a water supply ring. The water pump is located in the lid body, the water supply ring is sealed at the bottom of the lid body, and the water supply ring is provided with a water supply hole for water from the cup body to enter. The lid shell covers the lid body.

[0009] As an improvement of the negative pressure spray double-walled drinking cup of this utility model, the water pump's outlet is connected to the water supply hole through a water supply base. The cover includes a shell and a cover base. The water pump is installed on the cover base. The shell is sleeved outside the water pump and stacked on the cover base. The water supply base is located on the cover base.

[0010] As an improvement of the negative pressure spray double-walled drinking cup of this utility model, the water supply base is provided with a water supply channel, the top surface of the cover is provided with a connecting pipe, the connecting pipe is inserted into the inlet end of the water supply channel and coaxially connected with the water supply hole, and a filter cotton plug is provided inside the connecting pipe.

[0011] As an improvement of the negative pressure spray double-walled drinking cup of this utility model, the water supply ring includes a water supply ring and a sealing ring. The water supply ring is located in the limiting groove at the top of the sealing ring, and the upper hole of the water supply ring is coaxially connected with the lower hole of the sealing ring to form the water supply hole.

[0012] As an improvement of the negative pressure spray double-layer drinking cup of this utility model, the top of the water supply ring is provided with an upper water supply groove, and the upper hole is located in the upper water supply groove. The bottom of the sealing ring is provided with a lower water supply groove, and the lower hole is located in the lower water supply groove. The cross-sections of the water supply ring and the limiting groove are both T-shaped and cooperate with each other. The bottom of the water supply ring and the bottom of the limiting groove cooperate with each other through a concave-convex limiting structure.

[0013] As an improvement of the negative pressure spray double-layer drinking cup of this utility model, the water outlet of the water pump is connected to the atomizing nozzle through the atomizing seat. The atomizing seat includes a seat body and a connector. The atomizing nozzle is installed obliquely on the head of the seat body, and the connector is sealed and inserted into the connector hole at the tail of the atomizing seat.

[0014] As an improvement of the negative pressure spray double-layer drinking cup of this utility model, the lid body is provided with a drinking hole, the lid shell is integrally provided with a drinking tube, the drinking spout at the top of the lid shell is connected to the cup body in sequence through the drinking tube and the drinking hole, the drinking spout is sealed with a drinking cap, the drinking cap is connected to the side of the lid shell through a handle, and the drinking tube is provided with an air inlet valve on its side wall.

[0015] As an improvement of the negative pressure spray double-walled drinking cup of this utility model, the connecting part at the lower end of the handle is inserted into the cover body and the cover shell and is rotatably connected to the cover body. The air inlet valve is inserted into the end face of the connecting part. An air inlet hole is provided on the side wall of the connecting part, and the air inlet hole is connected to the interior of the air inlet valve.

[0016] As an improvement of the negative pressure spray double-walled drinking cup of this utility model, the side wall of the cover is provided with multiple positioning grooves and an insertion port for the connecting part of the handle to be inserted. All the positioning grooves are arranged in a circle around the insertion port. The rotating end face of the handle is provided with multiple positioning protrusions around the connecting part. All the positioning protrusions cooperate with some of the positioning grooves.

[0017] Compared with existing technologies, this novel negative pressure spray double-walled drinking cup integrates a water pump and atomizing nozzle within the cup lid. The atomizing nozzle utilizes high pressure to refine water into tiny droplets, achieving atomization. Simultaneously, the cup body employs a double-layer structure with an inner liner and an outer shell, creating a gap between them to form a negative pressure space. This not only enhances the cup's heat retention but also allows the water inlet at the bottom of the inner liner to connect with the water outlet through the negative pressure space, forming a highly efficient water circulation system. Water can be drawn from the cup without a straw, achieving instant atomization and cooling, enhancing the enjoyment and comfort of drinking, and providing users with a healthier, more convenient, and comfortable drinking experience. Attached Figure Description

[0018] Figure 1 This is a three-dimensional enlarged view of the drinking cup in the open state in this utility model;

[0019] Figure 2 This is another enlarged perspective view of the drinking cup in the open state in this utility model;

[0020] Figure 3 This is a three-dimensional exploded view of the cup lid of this utility model;

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is another exploded perspective view of the cup lid of this utility model;

[0023] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0024] Figure 7 This is a three-dimensional enlarged view of the cover, water supply base and atomizing base of this utility model;

[0025] Figure 8 This is a three-dimensional enlarged view of the water pump, atomizing base, water supply base, and water supply ring of this utility model;

[0026] Figure 9 This is an enlarged cross-sectional view of the water pump, atomizing base, water supply base, and water supply ring of this utility model;

[0027] Figure 10This is a three-dimensional exploded and enlarged view of the water supply ring of this utility model;

[0028] Figure 11 This is another exploded and enlarged perspective view of the water supply ring of this utility model;

[0029] Figure 12 This is a three-dimensional exploded and enlarged view of the water supply base of this utility model;

[0030] Figure 13 This is a three-dimensional exploded and enlarged view of the atomizing base of this utility model;

[0031] Figure 14 This is an enlarged cross-sectional view of the cup lid of this utility model;

[0032] Figure 15 This is a cross-sectional enlarged view of the negative pressure spray type double-walled drinking cup of this utility model;

[0033] Figure 16 yes Figure 15 Enlarged view of point C in the middle;

[0034] Figure 17 yes Figure 15 Enlarged view of point D in the middle;

[0035] Figure 18 yes Figure 15 Enlarged view at point E in the middle;

[0036] Figure 19 This is a three-dimensional sectional enlarged view of the cup body of this utility model.

[0037] Illustration:

[0038] 1. Cover; 11. Cover base; 111. Drinking hole; 112. Water pump mounting slot; 113. Connecting pipe; 114. Engaging groove; 12. Housing; 121. Air inlet valve; 2. Cover shell; 21. Drinking spout; 22. Drinking cap; 221. Sealing ring; 23. Handle; 231. Collar; 232. Connecting part; 233. Air inlet; 234. Positioning protrusion; 235. Air valve mounting hole; 24. Drinking pipe; 241. Sealing gasket; 25. Insert; 251. Positioning groove; 3. Atomizing base; 31. Base body; 311. Insertion hole; 312. Slot; 32. Insertion piece; 321. Buckle; 33. Atomizing nozzle; 34. Atomizing connector; 4. Water pump; 41. Upper shockproof sleeve; 42 1. Lower shockproof sleeve; 43. Water outlet; 44. Water inlet; 5. Battery; 51. Circuit board; 511. Button; 512. Power switch; 6. Water supply ring; 61. Water supply ring; 611. Upper water supply tank; 612. Upper hole; 613. Positioning platform; 62. Sealing ring; 621. Positioning groove; 622. Limiting groove; 623. Lower water supply tank; 624. Lower hole; 63. Water supply hole; 7. Cup lid; 8. Water supply base; 81. Water supply body; 811. Water supply channel; 812. Top column; 82. Bottom plug; 83. Water supply connector; 84. Filter cotton plug; 9. Cup body; 91. Inner liner; 911. Water inlet; 92. Outer shell; 93. Negative pressure space; 931. Water storage tank; 94. Water outlet. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. The drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of this utility model.

[0040] Reference Figures 1 to 19 A negative pressure spray double-walled drinking cup includes a lid 7 and a cup body 9, with the lid 7 covering the cup body 9.

[0041] Reference Figure 15 , Figure 16 and Figure 19 The top of the cup body 9 is hollowed out. The cup body 9 includes an inner liner 91 and an outer shell 92. Both the inner liner 91 and the outer shell 92 are cup-shaped. The inner liner 91 is located inside the outer shell 92. The bottom of the inner liner 91 is provided with multiple water inlet holes 911. A negative pressure space 93 is formed between the entire outer shell 92 and the entire inner liner 91. The negative pressure space 93 is arranged around the bottom and side walls of the inner liner 91. The water storage tank 931 inside the inner liner 91 is connected to the negative pressure space 93 through all the water inlet holes 911. The top of the inner liner 91 is welded to the top of the outer shell 92 to form an integral unit. Multiple water outlet holes 94 are provided at the opening edge of the top of the cup body 9. All the water inlet holes 911 are connected to all the water outlet holes 94 through the negative pressure space 93.

[0042] Reference Figure 3 and Figure 5The cup lid 7 includes a lid body 1, a lid shell 2 and a water supply ring 6. The water supply ring 6 is sealed at the bottom of the lid body 1. The water supply ring 6 is provided with a water supply hole 63 for water from the cup body 9 to enter. The lid shell 2 covers the lid body 1, and the spraying part of the atomizing nozzle 33 is exposed on the lid shell 2.

[0043] Reference Figure 3 , Figure 5 , Figure 7 and Figure 14 The cover 1 includes a shell 12 and a cover base 11. The bottom of the cover base 11 is hollowed out and has a ring-shaped locking groove 114. The top surface of the cover base 11 has a connecting pipe 113, a water pump mounting groove 112, and a drinking hole 111. The inner hole of the connecting pipe 113 passes through the cover base 11 and connects with the water supply hole 63. A filter cotton plug 84 is provided inside the connecting pipe 113. The drinking hole 111 passes through the cover base 11. The water pump mounting groove 112 is located between the drinking hole 111 and the connecting pipe 113. The internal thread on the lower inner wall of the lid 11 engages with the external thread of the cup body 9, connecting the lid 7 to the cup body 9. The housing 12 is stacked on the top surface of the lid 11 to form a control chamber. A circuit board 51 is provided in the control chamber. A power switch 512 and a button 511 are electrically connected to the circuit board 51. The atomizing nozzle 33 is electrically connected to the circuit board 51. The housing 12 is annular and has a battery mounting slot. A battery 5 is installed in the battery mounting slot and is electrically connected to the circuit board 51.

[0044] Reference Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 15 and Figure 16The water supply hole 63 of the water supply ring 6 is connected to the water outlet hole 94 at the top of the cup body 9. The water supply ring 6 is annular and installed in the locking groove 114. The water supply ring 6 includes a water supply ring 61 and a sealing ring 62. Both the water supply ring 61 and the sealing ring 62 are annular. The top of the sealing ring 62 is provided with an annular limiting groove 622. The cross-section of the limiting groove 622 is T-shaped. The bottom of the limiting groove 622 is provided with multiple positioning grooves 621. The bottom of the sealing ring 62... A lower water supply groove 623 is provided, and a lower hole 624 is provided through the sealing ring 62. The upper end of the lower hole 624 is located in the limiting groove 622, and the lower end of the lower hole 624 is located in one of the positioning grooves 621. The water supply ring 61 is located in the limiting groove 622 at the top of the sealing ring 62. An upper water supply groove 611 is provided at the top of the water supply ring 61. The cross-section of the water supply ring 61 is T-shaped and cooperates with the limiting groove 622. The bottom of the water supply ring 61... Multiple positioning platforms 613 are provided at intervals, and all positioning platforms 613 are correspondingly set in all positioning grooves 621. The positioning platforms 613 and positioning grooves 621 together form a concave-convex limiting structure so that the bottom of the water supply ring 61 and the bottom of the limiting groove 622 can cooperate through the concave-convex limiting structure to prevent relative rotation between the water supply ring 61 and the sealing ring 62. The water supply ring 61 has an upper hole 612, the upper end of which is located in the upper water supply groove 611, and the lower end of which is located on one of the positioning platforms 613 (i.e., the upper hole 612 passes through one of the positioning platforms 613). In this utility model, the upper hole 612 of the water supply ring 61 and the lower hole 624 of the sealing ring 62 are coaxially connected to form the water supply hole 63. The negative pressure space 93 is connected to the inner hole of the pipe 113 through multiple water outlet holes 94, the lower water supply groove 623, the water supply hole 63, the upper water supply groove 611 in sequence.

[0045] Reference Figure 3 , Figure 4 , Figure 5 , Figure 15 and Figure 18 The bottom of the cover 2 is hollowed out, and the power switch 512 and button 511 are exposed on the side wall of the cover 2. A drinking spout 21 is provided on the top of the cover 2. A drinking tube 24 is integrally provided inside the cover 2. The drinking tube 24 passes through the shell 12 and is sealed to the cover seat 11 through the sealing gasket 241. The drinking tube 24 is coaxially connected to the drinking hole 111. The drinking spout 21 is connected to the water storage tank 931 of the cup body 9 in sequence through the drinking tube 24 and the drinking hole 111. Multiple hemispherical positioning grooves 251 and a socket 25 are provided on the side wall of the cover 2. All the positioning grooves 251 are arranged in a circle around the socket 25 at intervals.

[0046] Reference Figure 5 , Figure 6 , Figure 15 and Figure 18The cup lid 7 also includes a drinking cap 22 and a handle 23. The drinking cap 22 is sealed to the drinking spout 21 of the lid shell 2 by a sealing ring 221. The handle 23 is semi-circular. The drinking cap 22 is connected to the side of the lid shell 2 through the handle 23. Specifically, the collar 231 at the upper end of the handle 23 is fitted onto the drinking cap 22. The lower end of the handle 23 is provided with a connecting part 232. The connecting part 232 is inserted into the lid body 1 and the lid shell 2 through the insertion port 25 of the lid shell 2 and is rotatably connected to the lid body 1. An air vent is provided on the end face of the connecting part 232. The valve mounting hole 235 is used to install the air inlet valve 121. The air outlet of the air inlet valve 121 passes through the side wall of the drinking water pipe 24. An air inlet hole 233 is provided on the side wall of the connecting part 232. The air inlet hole 233 communicates with the interior of the air inlet valve 121. The rotating end face of the handle 23 is provided with multiple positioning protrusions 234 around the connecting part 232. In this embodiment, two positioning protrusions 234 are preferred. The two positioning protrusions 234 cooperate with two positioning grooves 251 so that the handle 23 has a certain feel during rotation.

[0047] Reference Figure 3 and Figure 5 The cup lid 7 is equipped with a water pump 4, which is specifically located inside the lid body 1. The top of the water pump 4 is equipped with an atomizing seat 3, and the atomizing nozzle 33 is installed on the atomizing seat 3. The water outlet 43 of the water pump 4 is connected to the atomizing nozzle 33 through the atomizing seat 3. A water supply seat 8 is provided on the side of the water pump 4, and the water inlet 44 of the water pump 4 is connected to the water supply hole 63 through the water supply seat 8. The cover shell 2 covers the lid body 1, the atomizing seat 3 and the water supply seat 8, and the spraying part of the atomizing nozzle 33 is exposed on the cover shell 2.

[0048] Reference Figure 3 , Figure 5 , Figure 8 and Figure 9 The water pump 4 is specifically an electric pump. The housing 12 is fitted over the water pump 4. The water pump 4 is L-shaped and electrically connected to the circuit board 51. The water pump 4 is located between the battery 5 and the circuit board 51. The water outlet end of the water pump 4 is provided with a water outlet 43, which is located at the top of the water pump 4. The water inlet end of the water pump 4 is provided with a water inlet 44. The upper and lower ends of the water pump 4 are respectively fitted with an upper shockproof sleeve 41 and a lower shockproof sleeve 42. The water outlet 43 passes through the upper shockproof sleeve 41 and extends outside the upper shockproof sleeve 41. The water pump 4 and the lower shockproof sleeve 42 are installed together in the water pump mounting groove 112. The water pump 4 passes through the housing 12 from the center of the housing 12. An air inlet valve 121 is installed on the side wall of the housing 12 near the drinking hole 111. The air inlet valve 121 is specifically a duckbill one-way valve.

[0049] Reference Figure 7 , Figure 8 and Figure 9The water supply base 8 is installed on the top of the cover 11 and is exposed on the side wall of the housing 12. The water supply base 8 includes a water supply body 81 and a bottom plug 82. The bottom plug 82 is inserted into the opening at the bottom of the water supply body 81 to form a Z-shaped water supply channel 811. The upper end of the water supply channel 811 is its outlet end and the lower end of the water supply channel 811 is its inlet end. The connecting pipe 113 is inserted into the inlet end of the water supply channel 811 and coaxially connected with the water supply hole 63. A top column 812 is integrally provided in the inlet end of the water supply channel 811. The filter cotton plug 84 is located between the top column 812 and the water supply ring 6. The top column 812 is inserted into the connecting pipe 113 and forms a gap between it and the inner wall of the connecting pipe 113 for water supply. A water supply connector 83 is provided at the outlet end of the water supply channel 811. The water inlet 44 of the water pump 4 is sealed and inserted into the water supply connector 83 and snapped into the water supply connector 83.

[0050] Reference Figure 7 , Figure 8 , Figure 9 , Figure 13 , Figure 15 and Figure 17 The atomizing seat 3 is located on top of the water pump 4 and fixed to the housing 12. The atomizing seat 3 includes a body 31 and a connector 32. The atomizing nozzle 33 is installed obliquely at the head of the seat 31. The tail of the atomizing seat 3 is provided with a connector hole 311. A slot 312 is provided on each of the two corresponding sides of the connector hole 311. The connector 32 is sealed and inserted into the tail of the connector hole 311 to prevent the atomizing seat 3 from leaking water. The two corresponding sides of the connector 32 are provided with buckles 321. The two buckles 321 are engaged with the two slots 312 one by one. The inlet at the bottom of the seat 31 is connected to the head space of the connector hole 311. An atomizing connector 34 is installed at the inlet at the bottom of the seat 31. The water outlet 43 of the water pump 4 is sealed and inserted into the atomizing connector 34 and engaged with the atomizing connector 34 so that the water outlet 43 of the water pump 4 can communicate with the atomizing nozzle 33 through the head space of the connector hole 311.

[0051] Reference Figures 1 to 19 The working principle of this negative pressure spray double-walled drinking cup is as follows:

[0052] Unscrew the lid 7 and add a certain amount of water (cold water, room temperature water, or hot water) into the water storage tank 931 of the cup body 9 to expel the air from the water storage tank 931. Then, put the lid 7 on and tighten it.

[0053] After the water pump 4 starts working, it will create negative pressure in the negative pressure space 93 between the inner tank 91 and the outer shell 92. Water in the water storage tank 931 enters the negative pressure space 93 through multiple water inlet holes 911. Water in the negative pressure space 93 enters the lower water supply tank 623 through multiple water outlet holes 94, and then enters the upper water supply tank 611 through the water supply hole 63. Then it is filtered by the filter cotton plug 84, and then enters the water supply channel 811 through the gap between the top column 812 and the connecting pipe 113. Then it enters the water pump 4 through the water inlet 44. Under the action of the impeller, the water in the water pump 4 enters the atomizing seat 3 from the water outlet 43 of the water pump 4, and finally sprays outward in the form of water mist from the spray part of the atomizing nozzle 33.

[0054] When you need to drink water, you can directly unscrew the drinking cap 22, tilt the entire cup, and the water in the cup body 9 will flow out from the drinking spout 21 through the drinking hole 111 and the drinking tube 24.

[0055] When the drinking cap 22 is separated from the drinking spout 21, the user can rotate the handle 23. The two positioning protrusions 234 on the handle 23 can switch between multiple positioning grooves 251, so that the rotation of the handle 23 has a certain feel.

[0056] When there is a certain pressure difference between the pressure inside the water cup and the external pressure, gently pull outward and turn the handle 23 to open the air inlet valve 121. The outside air can then enter the connection part 232 through the air inlet hole 233 and the air inlet valve 121 in sequence to maintain air pressure balance and avoid water flow problems caused by air pressure differences.

[0057] This utility model of a negative pressure spray-type double-layer drinking cup integrates a water pump 4 and an atomizing nozzle 33 within the cup lid 7. The atomizing nozzle 33 utilizes high pressure to refine water into tiny droplets, achieving atomization. Simultaneously, the cup body 9 employs a double-layer structure with an inner liner 91 and an outer shell 92, with a gap between the inner liner 91 and the outer shell 92 forming a negative pressure space 93. This not only enhances the heat preservation performance of the cup body 9 but also allows the water inlet 911 at the bottom of the inner liner 91 to connect with the water outlet 94 through the negative pressure space 93, forming an efficient water circulation system. Water can be drawn from the cup body 9 without a straw, achieving instant atomization and cooling of the water, enhancing the enjoyment and comfort of drinking, and providing users with a healthier, more convenient, and comfortable drinking experience.

[0058] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the patent application of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A negative pressure spray-type double-walled drinking cup, comprising a lid and a body, wherein the lid is disposed on the body, characterized in that, The cup lid contains a water pump and an atomizing nozzle. The spraying part of the atomizing nozzle is exposed in the cup lid. The top of the cup body has a water outlet. The water inlet and outlet of the water pump are respectively connected to the water outlet and the atomizing nozzle. A negative pressure space is formed between the inner liner and the outer shell of the cup body. The bottom of the inner liner has a water inlet, which is connected to the water outlet through the negative pressure space.

2. The negative pressure spray-type double-walled drinking cup according to claim 1, characterized in that, The cup lid includes a lid body, a cover shell, and a water supply ring. The water pump is located inside the lid body, the water supply ring is sealed at the bottom of the lid body, and the water supply ring has a water supply hole for water from the cup body to enter. The cover shell covers the lid body.

3. The negative pressure spray-type double-walled drinking cup according to claim 2, characterized in that, The water pump's outlet is connected to the water supply hole via a water supply base. The cover includes a housing and a cover seat. The water pump is mounted on the cover seat. The housing is sleeved over the water pump and stacked on the cover seat. The water supply base is located on the cover seat.

4. The negative pressure spray-type double-walled drinking cup according to claim 3, characterized in that, The water supply base is provided with a water supply channel, and the top surface of the cover is provided with a connecting pipe. The connecting pipe is inserted into the inlet end of the water supply channel and coaxially connected with the water supply hole. The connecting pipe is provided with a filter cotton plug.

5. The negative pressure spray-type double-walled drinking cup according to claim 2, characterized in that, The water supply ring includes a water supply ring and a sealing ring. The water supply ring is located in the limiting groove at the top of the sealing ring. The upper hole of the water supply ring is coaxially connected with the lower hole of the sealing ring to form the water supply hole.

6. The negative pressure spray-type double-walled drinking cup according to claim 5, characterized in that, The top of the water supply ring is provided with an upper water supply groove, and the upper hole is located in the upper water supply groove. The bottom of the sealing ring is provided with a lower water supply groove, and the lower hole is located in the lower water supply groove. The cross-sections of the water supply ring and the limiting groove are both T-shaped and fit together. The bottom of the water supply ring and the bottom of the limiting groove fit together through a concave-convex limiting structure.

7. The negative pressure spray-type double-walled drinking cup according to claim 2, characterized in that, The water pump's outlet is connected to the atomizing nozzle via an atomizing seat. The atomizing seat includes a seat body and a connector. The atomizing nozzle is installed at an angle on the head of the seat body, and the connector is sealed and inserted into the connector hole at the tail of the atomizing seat.

8. The negative pressure spray-type double-walled drinking cup according to claim 2, characterized in that, The lid body is provided with a drinking hole, and the lid shell is integrally provided with a drinking tube. The drinking spout on the top of the lid shell is connected to the cup body in sequence through the drinking tube and the drinking hole. The drinking spout is sealed with a drinking cap, and the drinking cap is connected to the side of the lid shell through a handle. The drinking tube is provided with an air inlet valve on its side wall.

9. The negative pressure spray-type double-walled drinking cup according to claim 8, characterized in that, The lower end of the handle is inserted into the cover and the cover shell and is rotatably connected to the cover. The air inlet valve is inserted into the end face of the connecting part. An air inlet hole is provided on the side wall of the connecting part and the air inlet hole communicates with the interior of the air inlet valve.

10. The negative pressure spray-type double-walled drinking cup according to claim 8, characterized in that, The side wall of the cover is provided with multiple positioning grooves and a socket for the connecting part of the handle to be inserted. All the positioning grooves are arranged in a circle around the socket. The rotating end face of the handle is provided with multiple positioning protrusions around the connecting part. All the positioning protrusions cooperate with some of the positioning grooves.

Images