Straw sealing structure of cup cover

Abstract

The utility model belongs to the technical field of cup covers, and particularly relates to a straw sealing structure of a cup cover, which comprises a cover body and a turning cover which are rotatably connected, a straw is arranged on the cover body, the straw comprises a suction nozzle extending between the cover body and the turning cover, the turning cover can cover the cover body and seal the suction nozzle, a containing cavity is arranged on the lower side of the turning cover, and the containing cavity is communicated with the cover body. A pressing block corresponding to the suction nozzle is arranged in the containing cavity, an inserting groove is formed in the upper end of the suction nozzle, the control turning cover covers the cover body, the pressing block can penetrate into the inserting groove and drive the upper end of the suction nozzle to be bent and sealed towards the side face through the inserting groove, and therefore the suction nozzle is sealed. The straw sealing structure of the cup cover is simple in structure, good in sealing effect and convenient for a user to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of cup covers, and particularly relates to a straw sealing structure of a cup cover. Background Art

[0002] The cup lid is an important component of the thermos cup. It can seal the cup body and also assist the user in drinking water.

[0003] In order to facilitate users to drink beverages in the cup body, many cup lids include a cover body and a flip cover, and a straw is arranged on the cover body. When in use, the straw extends to the bottom of the cup body and sucks the beverage at the bottom of the cup body, and a suction nozzle connected to the straw is arranged on the upper end of the cover body. When the flip cover is closed on the cover body, the flip cover is pressed against the side wall of the suction nozzle, thereby pressing the suction nozzle against the cover body and sealing the water suction hole in the suction nozzle. For example, Chinese utility model patent application CN202121459954.0 discloses an anti-scalding smart bouncing cup cover, which includes a base and a flip cover hinged on one end of the base, the base is provided with a straw hole and an air vent, a straw is arranged in the straw hole, a switch button on the base and a limiter arranged on the flip cover, the switch button includes a sealing portion, a hook portion and a The pressing part is used to drive the sealing part and the hook part to move, and the hook part includes a first hook and a second hook that can cooperate with the limit member; a vent hole is provided on the base, and a pressing part located above the vent hole is correspondingly provided in the flip cover. When the flip cover is closed on the base, the middle part of the pressing part presses the straw until the vent hole is completely sealed; when the user presses the pop-up cover switch, the air release port is opened, and the flip cover is hooked by the hook to prevent the flip cover from being fully opened, so as to achieve the effect of partially opening the flip cover, and the air pressure is released from the gap formed between the flip cover and the base. After the pressure relief is completed, the flip cover is released to be fully opened so that water can be drunk normally, which makes the user feel safer and more assured, and solves the problem of the flip cover suddenly popping out due to excessive air pressure during the pressure relief process, causing safety problems.

[0004] In the above structure, in order to prevent the beverage from leaking from the suction nozzle during mobile transportation, the flip cover needs to press the straw against the cover body, so that the flip cover and the cover body are respectively pressed against the two sides of the suction nozzle, so as to seal the water suction hole in the suction nozzle. However, this requires the flip cover and the cover body to have a large force on the suction nozzle, which affects the stable closing of the flip cover and the cover body. The water suction hole is easy to be connected quickly during the opening of the flip cover, so that the beverage sprays out of the suction nozzle, affecting the normal use of the cup cover. Summary of the invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a straw sealing structure of a cup cover which has a simple structure, good sealing effect and is convenient for users to use.

[0006] The purpose of the utility model is achieved in this way:

[0007] A straw sealing structure for a cup lid comprises a cover body and a flip cover which are rotatably connected, a straw being arranged on the cover body, the straw comprising a suction nozzle extending between the cover body and the flip cover, the flip cover being coverable on the cover body and sealing the suction nozzle, a receiving cavity being arranged on the lower side of the flip cover, a pressing block corresponding to the suction nozzle being arranged in the receiving cavity, a slot being arranged on the upper end of the suction nozzle, the flip cover being controllable to cover the cover body, the pressing block being able to penetrate into the slot and drive the upper end of the suction nozzle to bend and seal to the side through the slot, thereby sealing the suction nozzle, and a ventilation hole being arranged on the cover body and connecting the upper and lower sides of the cover body.

[0008] The utility model is further configured as follows: a reinforcing portion extending along the length direction of the suction nozzle is arranged at the lower part of the suction nozzle, and the reinforcing portion increases the structural strength of the lower part of the suction nozzle and prevents the lower part of the suction nozzle from bending.

[0009] The utility model is further configured as follows: at least two reinforcement parts are arranged at the lower part of the suction nozzle, and the reinforcement parts are arranged in sequence along the circumference of the suction nozzle; the suction nozzle above the reinforcement part is bent under the action of the pressure block, and the lower part of the suction nozzle is deformed and the relative positions between the reinforcement parts are deformed.

[0010] The utility model is further configured as follows: a water suction hole is arranged in the suction nozzle, and a slot is arranged at the end of the water suction hole and is communicated with the water suction hole.

[0011] The utility model is further configured as follows: a first elastic diaphragm is arranged in the suction nozzle, the first elastic diaphragm blocks the suction nozzle and restricts air or liquid from passing through the suction nozzle, and a first slit is arranged on the first elastic diaphragm. Under the action of external force, the first slit can be deformed so that the first slit becomes larger, thereby allowing air or liquid to pass through the suction nozzle.

[0012] The utility model is further configured as follows: a guiding inclined surface is arranged on the pressing block, and the pressing block is guided by the guiding inclined surface to penetrate into the slot.

[0013] The utility model is further configured as follows: a hinged portion rotatably connected to the cover body is provided at the rear of the flip cover, a pressing block drives the upper portion of the suction nozzle to bend toward the front of the cover body, and the pressing block is in a sheet shape and extends to both sides of the flip cover, the pressing block penetrates into the slot and causes the suction nozzle to bend along the extension direction of the pressing block.

[0014] The utility model is further configured as follows: a ventilation pipe is arranged on the cover body, the ventilation hole is arranged in the ventilation pipe and connects the upper and lower sides of the cover body, and the ventilation pipe passes through the upper end of the cover body and is exposed to the outside, a second elastic diaphragm is arranged in the ventilation pipe, the second elastic diaphragm blocks the ventilation pipe and restricts air or liquid from passing through the ventilation pipe, and a driving member is arranged on the flip cover, and a second slit is arranged on the second elastic diaphragm; in the process of controlling the relative opening of the flip cover and the cover body, the driving member can drive the second elastic diaphragm to deform, thereby enlarging the second slit, and then allowing air or liquid to pass through the ventilation pipe, and the second elastic diaphragm can automatically reset and seal the second slit.

[0015] The utility model is further configured as follows: an inclined first guide surface is provided on the ventilation pipe to control the flip cover to close to the cover body, and the driving member is guided by the first guide surface to cross the ventilation pipe and move the driving member to one side of the ventilation pipe.

[0016] The utility model is further configured as follows: a second hook portion is provided on the driving member, and a first hook portion adapted to the second hook portion is provided on the side of the ventilation tube, and during the process of controlling the relative opening of the flip cover and the cover body, the second hook portion abuts against the first hook portion to drive the ventilation tube to deform.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The pressure block in the utility model can be inserted into the slot and control the directional bending of the suction nozzle, so as to seal the suction nozzle. This sealing method does not require the flip cover and the cover body to have a large relative force on the suction nozzle, and will not affect the relative closing of the flip cover and the cover body. Even if the flip cover, the cover body and the snap-on structure controlling the snap-on connection between the flip cover and the cover body are worn out after long-term use or the flip cover is slightly opened, the flip cover can also control the suction nozzle to bend and seal, and the sealing effect is good. When the flip cover is slightly opened, the suction nozzle can still be in a sealed state, and the ventilation hole can quickly balance the air pressure inside and outside the cup body to avoid air pressure driving the drink to spray out of the suction nozzle, which is convenient for users to use. Moreover, because the pressure block can be inserted into the slot, the suction nozzle can be prevented from swinging left and right during the closing process of the flip cover to the cover body, thereby affecting the sealing of the suction nozzle.

[0019] 2. The provision of the reinforcement part in the utility model can limit the bending range of the suction nozzle, thereby preventing the bending position from being too low to affect the sealing effect of the suction nozzle, which is beneficial to improving the sealing effect of the suction nozzle and preventing accidental leakage of beverage from the suction nozzle during use. The reinforcement part can also increase the strength of the suction nozzle and prevent the suction nozzle from drooping toward the cover body due to heat, which is convenient for users to use. The provision of at least two reinforcement parts facilitates the deformation of the lower part of the suction nozzle during the bending process of the suction nozzle, thereby making the bending position of the suction nozzle tightly sealed.

[0020] 3. The slot arranged in the water suction hole of the utility model is convenient for simplifying the suction nozzle structure and facilitating the production and processing of the suction nozzle. The structure is conducive to the stable connection between the pressing block and the slot, and prevents the pressing block from being separated from the slot. The setting of the first elastic diaphragm can seal the suction nozzle, block the beverage in the suction nozzle, reduce or even prevent the beverage from spraying out of the suction nozzle, and the first elastic diaphragm can prevent the user from choking due to excessive flow rate of the beverage in the suction nozzle. The setting of the first slit makes it easy for the user to suck out the beverage in the cup body by sucking.

[0021] 4. The setting of the guiding inclined surface in the utility model facilitates the insertion of the pressing block into the slot, thereby avoiding the relative deviation of the pressing block and the slot during use, which causes the pressing block and the slot to be unable to cooperate, thereby affecting the sealing of the flip cover on the suction nozzle; the pressing block is sheet-shaped and extends to both sides of the flip cover to facilitate the suction nozzle to become flat during the bending process, which is convenient for the bending and sealing of the suction nozzle.

[0022] 5. The provision of the second elastic diaphragm and the second slit in the utility model can seal the ventilation tube in real time, thereby preventing the user from passing through the ventilation tube during drinking, and the structure can achieve sealing of the ventilation tube and balance of air pressure in the cup body only through the ventilation tube. The structure is simple, convenient for production and processing, and convenient for users to use and control. In the structure, when the air pressure in the cup body is too high or too low, the elastic diaphragm will deform to allow the ventilation tube to pass through, thereby reducing the air pressure difference inside and outside the cup body, preventing the drink from spraying out through the suction nozzle, and facilitating the relative disassembly of the cup body and the cup cover; the provision of the first guide surface facilitates the driving member to pass over the ventilation tube, thereby preventing the driving member from abutting against the ventilation tube when the flip cover is closed on the cover body and causing the ventilation tube to be bent all the time, which is beneficial to the sealing of the ventilation tube by the elastic diaphragm; the provision of the first hook portion and the second hook portion can increase the deformation of the ventilation tube and the elastic diaphragm during the opening of the flip cover, which is beneficial for the air to fully pass through the ventilation tube and balance the air pressure inside and outside the cup body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the utility model;

[0024] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0025] Figure 3 It is a cross-sectional view of the cup cover of the utility model during the process of flipping open the cover;

[0026] Figure 4 It is a cross-sectional view of the cup cover when the pressing block of the utility model is matched with the slot;

[0027] Figure 5 It is a schematic diagram of the structure of the utility model when the flip cover is opened;

[0028] Figure 6 It is an explosion schematic diagram of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the flip cover in the utility model;

[0030] Figure 8 It is a structural schematic diagram of the suction nozzle and the ventilation pipe in the utility model;

[0031] Fig. 9 It is a cross-sectional view of the suction nozzle and the ventilation pipe in the utility model.

[0032] Meanings of the reference numerals in the figure: 1-cover body; 11-first fixing hole; 12-second fixing hole; 2-flip cover; 21-driving member; 22-pressing block; 23-hooking groove; 24-hinge portion; 211-second hook portion; 212-second guide surface;

[0033] 221-guide slope; 3-ventilation tube; 31-second elastic diaphragm; 32-second slit; 33-first hook portion; 34-first guide surface; 35-ventilation hole; 4-sucking nozzle; 41-water suction hole; 42-slot; 43-reinforcement portion; 44-first elastic diaphragm; 45-first slit; 5-snapping button. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0035] See also Figures 1 to 9 As shown, a straw sealing structure of a cup cover comprises a cover body 1 and a flip cover 2 which are rotatably connected, a straw is arranged on the cover body 1, the straw comprises a suction nozzle 4 which extends between the cover body 1 and the flip cover 2, the flip cover 2 can be covered on the cover body 1 and seal the suction nozzle 4, a receiving cavity is arranged on the lower side of the flip cover 2, a pressing block 22 corresponding to the suction nozzle 4 is arranged in the receiving cavity, a slot 42 is arranged on the upper end of the suction nozzle 4, the flip cover 2 is controlled to be covered on the cover body 1, the pressing block 22 can penetrate into the slot 42 and drive the upper end of the suction nozzle 4 to bend and seal to the side through the slot 42, thereby sealing the suction nozzle 4, and a ventilation hole 35 which is connected to the upper and lower sides of the cover body 1 is arranged on the cover body 1, the ventilation hole 35 can be sealed when the flip cover 2 is covered on the cover body 1, and the pressing block 22 can penetrate into the slot 42 and seal the suction nozzle 4. The suction nozzle 4 is controlled to be directional bent, so as to seal the suction nozzle 4. This sealing method does not require the flip cover 2 and the cover body 1 to have a large relative force on the suction nozzle 4, and will not affect the relative covering of the flip cover 2 and the cover body 1. Even if the flip cover 2, the cover body 1 and the clamping structure controlling the clamping of the flip cover 2 and the cover body 1 are worn after long-term use or the flip cover 2 is slightly opened, the flip cover 2 can also control the suction nozzle 4 to bend and seal, and the sealing effect is good. When the flip cover 2 is slightly opened, the suction nozzle 4 can still be in a sealed state. The ventilation hole 35 can quickly balance the air pressure inside and outside the cup body to prevent the air pressure from driving the drink to spray out of the suction nozzle 4, which is convenient for users to use. In addition, because the pressing block 22 can be inserted into the slot 42, it is prevented that the suction nozzle 4 swings left and right during the closing of the flip cover 2 to the cover body 1, thereby affecting the sealing of the suction nozzle 4.

[0036] The utility model has a snap-on button 5 movably arranged on the cover body 1, and a hook groove 23 arranged on the flip cover 2. The snap-on button 5 cooperates with the hook groove 23 to relatively fix the cover body 1 and the flip cover 2. Preferably, an elastic member is arranged on the cover body 1, and the elastic member can drive the flip cover 2 to relatively open with the cover body 1.

[0037] In the utility model, the reversing hole can be sealed by pressing the flip cover 2 against the end of the ventilation hole 35, such as the sealing structure of the exhaust hole for the pressure rod in the anti-spray nozzle cup cover of Chinese utility model patent CN201822241056.2, or the sealing member on the cover body 1 can directly seal the ventilation hole 35, such as the sealing structure of the exhaust hole for the air release valve in the anti-spray cup cover of Chinese utility model patent CN202022646389.0. There are many related prior arts for this structure, and the technical solution of the claims can be implemented in this field based on its own experience.

[0038] The suction nozzle 4 is provided with a water suction hole 41, and a slot 42 is provided at the end of the water suction hole 41 and communicated with the water suction hole 41. The slot 42 provided in the water suction hole 41 facilitates the simplification of the structure of the suction nozzle 4 and facilitates the production and processing of the suction nozzle 4. The structure is conducive to the stable connection between the pressing block 22 and the slot 42. The pressing block 22 can be inserted into the water suction hole 41 to prevent the pressing block 22 from being separated from the slot 42, which is convenient for users to use.

[0039] The lower part of the suction nozzle 4 in the utility model is provided with a reinforcing portion 43 extending along the length direction of the suction nozzle 4. The reinforcing portion 43 increases the structural strength of the lower part of the suction nozzle 4 and prevents the lower part of the suction nozzle 4 from bending. The provision of the reinforcing portion 43 can limit the bending range of the suction nozzle 4, thereby preventing the bending position from being too low to affect the sealing effect of the suction nozzle 4, which is beneficial to improving the sealing effect of the suction nozzle 4 and preventing accidental leakage of beverages from the suction nozzle 4 during use. In addition, the reinforcing portion 43 can increase the strength of the suction nozzle 4 and prevent the suction nozzle 4 from sagging toward the cover body 1 due to heat, which is convenient for users to use.

[0040] Preferably, at least two reinforcing parts 43 are provided at the lower part of the suction nozzle 4, and the reinforcing parts 43 are arranged in sequence along the circumference of the suction nozzle 4; the suction nozzle 4 above the reinforcing parts 43 is bent under the action of the pressure block 22, and the lower part of the suction nozzle 4 is deformed and the relative positions between the reinforcing parts 43 are deformed. The arrangement of at least two reinforcing parts 43 facilitates the deformation of the lower part of the suction nozzle 4 during the bending process of the suction nozzle 4, thereby making the bending position of the suction nozzle 4 tightly sealed.

[0041] The suction nozzle 4 is provided with a first elastic diaphragm 44, which blocks the suction nozzle 4 and restricts air or liquid from passing through the suction nozzle 4, and a first slit 45 is provided on the first elastic diaphragm 44. Under the action of external force, the first slit 45 can be deformed to enlarge the first slit 45, thereby allowing air or liquid to pass through the suction nozzle 4. The setting of the first elastic diaphragm 44 can seal the suction nozzle 4 and block the beverage in the suction nozzle 4, reducing or even preventing the beverage from spraying out of the suction nozzle 4, and the first elastic diaphragm 44 can prevent the user from choking due to excessive flow rate of the beverage in the suction nozzle 4, and the setting of the first slit 45 makes it easy for the user to suck out the beverage in the cup body by sucking.

[0042] The pressing block 22 of the utility model is provided with a guiding inclined surface 221, and the pressing block 22 is guided into the slot 42 by the guiding inclined surface 221. The setting of the guiding inclined surface 221 facilitates the pressing block 22 to penetrate into the slot 42, thereby avoiding the pressing block 22 and the slot 42 being relatively deflected during use, resulting in the pressing block 22 and the slot 42 being unable to cooperate with each other, thereby affecting the sealing of the flip cover 2 on the suction nozzle 4.

[0043] Preferably, a hinged portion 24 rotatably connected to the cover body 1 is provided at the rear portion of the flip cover 2, and the pressure block 22 drives the upper portion of the suction nozzle 4 to bend toward the front of the cover body 1, and the pressure block 22 is in the form of a sheet and extends to both sides of the flip cover 2. The pressure block 22 is inserted into the slot 42 and causes the suction nozzle 4 to bend along the extension direction of the pressure block 22. The pressure block 22 in the form of a sheet and extending on both sides of the flip cover 2 facilitates the suction nozzle 4 to become flat during the bending process, thereby facilitating the bending and sealing of the suction nozzle 4.

[0044] The cover body 1 is provided with a ventilation tube 3, a ventilation hole 35 is provided in the ventilation tube 3 and communicates with the upper and lower sides of the cover body 1, and the ventilation tube 3 passes through the upper end of the cover body 1 and is exposed to the outside, and a second elastic diaphragm 31 is provided in the ventilation tube 3, the second elastic diaphragm 31 blocks the ventilation tube 3 and restricts air or liquid from passing through the ventilation tube 3, and a driving member 21 is provided on the flip cover 2, and a second slit 32 is provided on the second elastic diaphragm 31; in the process of controlling the flip cover 2 to open relative to the cover body 1, the driving member 21 can drive the second elastic diaphragm 31 to deform, thereby enlarging the second slit 32, thereby allowing air or liquid to pass through the ventilation tube 3, and the second elastic diaphragm 31 can be used to control the second elastic diaphragm 31 to deform, thereby enlarging the second slit 32, and then ... The elastic diaphragm 31 can automatically reset and seal the second slit 32. The setting of the second elastic diaphragm 31 and the second slit 32 can seal the ventilation tube 3 in real time to prevent the drink from passing through the ventilation tube 3 during the user's drinking process. In addition, the structure can achieve the sealing of the ventilation tube 3 and the balance of air pressure in the cup body only through the ventilation tube 3. The structure is simple, convenient for production and processing, and convenient for users to use and control. In this structure, when the air pressure in the cup body is too high or too low, the elastic diaphragm will deform to make the ventilation tube 3 pass through, thereby reducing the air pressure difference inside and outside the cup body, preventing the drink from spraying out through the suction nozzle 4, and facilitating the relative disassembly of the cup body and the cup cover.

[0045] The flip cover 2 is provided with a pressing block 22, which can drive the suction nozzle 4 to bend and seal the suction nozzle 4; in the process of controlling the flip cover 2 and the cover body 1 to open relative to each other, the suction nozzle 4 is reset after the driving member 21 passes over the ventilation pipe 3 and connects the suction nozzle 4 to the upper and lower sides of the cover body 1. In the process of opening the flip cover 2, the ventilation pipe 3 can fully balance the air pressure inside and outside the cup body to prevent the drink from spraying out of the suction nozzle 4, which is convenient for users.

[0046] The ventilation tube 3 is provided with an inclined first guide surface 34 to control the flap 2 to close to the cover body 1. The driving member 21 is guided by the first guide surface 34 to cross the ventilation tube 3 and move the driving member 21 to one side of the ventilation tube 3. The provision of the first guide surface 34 facilitates the driving member 21 to cross the ventilation tube 3, thereby preventing the driving member 21 from pressing against the ventilation tube 3 and causing the ventilation tube 3 to bend all the time when the flap 2 is closed on the cover body 1, which is beneficial to the elastic diaphragm to seal the ventilation tube 3.

[0047] In this embodiment, the driving member 21 is provided with a second hook portion 211, and the side of the ventilation tube 3 is provided with a first hook portion 33 adapted to the second hook portion 211. During the process of controlling the relative opening of the flip cover 2 and the cover body 1, the second hook portion 211 abuts against the first hook portion 33 to drive the ventilation tube 3 to deform. The settings of the first hook portion 33 and the second hook portion 211 can increase the deformation of the ventilation tube 3 and the elastic diaphragm during the opening of the flip cover 2, which is beneficial for the air to fully pass through the ventilation tube 3 and balance the air pressure inside and outside the cup body.

[0048] The ventilation tube 3 in the present embodiment is made of elastic material, and the ventilation tube 3 and the elastic diaphragm are integrally arranged. The driving member 21 can abut against the side wall of the ventilation tube 3 and drive the ventilation tube 3 to deform, thereby deforming the second elastic diaphragm 31 in the ventilation tube 3 and enlarging the second slit 32. The ventilation tube 3 made of elastic material is convenient for the ventilation tube 3 to deform together with the second elastic diaphragm 31 to avoid damage to the second elastic diaphragm 31. This structure can prevent the driving member 21 from directly contacting the second elastic diaphragm 31, causing the second elastic diaphragm 31 and the inside of the ventilation tube 3 to be contaminated, which is beneficial to keeping the second elastic diaphragm 31 and the inside of the ventilation tube 3 clean and hygienic, and is beneficial to the health of the user.

[0049] Preferably, the ventilation tube 3 and the suction nozzle 4 are integrally arranged. The integrally arranged ventilation tube 3 and the suction nozzle 4 are conducive to reducing the types of parts of the cup cover and facilitating the assembly of the cup cover. In this embodiment, the cover body 1 is provided with a first fixing hole 11 and a second fixing hole 12, and the suction nozzle 4 and the ventilation tube 3 are respectively installed in the first fixing hole 11 and the second fixing hole 12.

[0050] In this embodiment, a second guide surface 212 is provided on the side of the second hook portion 211 to control the flip cover 2 to close to the cover body 1. The second guide surface 212 can abut against the ventilation pipe 3, so that the second hook portion 211 passes over the ventilation pipe 3 and cooperates with the first hook portion 33. The provision of the second guide surface 212 is conducive to the second hook portion 211 passing over the ventilation pipe 3 and cooperating with the first hook portion 33, which is conducive to reducing the wear of the second hook portion 211 and the ventilation pipe 3.

[0051] The middle part of the first elastic diaphragm 44 is bent or recessed toward the bottom of the suction nozzle 4, and the middle part of the second elastic diaphragm 31 is bent or recessed toward the bottom of the ventilation tube 3; the air pressure below the first elastic diaphragm 44 and the second elastic diaphragm 31 can drive the first elastic diaphragm 44 and the second elastic diaphragm 31 to deform upward, and squeeze and seal the first slit 45 or the second slit 32. The bent or recessed first elastic diaphragm 44 and the second elastic diaphragm 31 are conducive to increasing the maximum air pressure in the cup body during use, and preventing the drink from passing through the first slit 45 or the second slit 32 when the cup is inverted, so as to facilitate the use of the user.

[0052] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A straw sealing structure for a cup cover, comprising a cover body (1) and a flip cover (2) which are rotatably connected, the cover body (1) being provided with a straw, the straw comprising a suction nozzle (4) extending between the cover body (1) and the flip cover (2), the flip cover (2) being coverable on the cover body (1) and sealing the suction nozzle (4), characterized in that: The lower side of the flip cover (2) is provided with a receiving cavity, in which a pressure block (22) corresponding to the suction nozzle (4) is provided, and the upper end of the suction nozzle (4) is provided with a slot (42). When the flip cover (2) is controlled to be closed on the cover body (1), the pressure block (22) can be inserted into the slot (42) and drive the upper end of the suction nozzle (4) to bend and seal toward the side through the slot (42), thereby sealing the suction nozzle (4), and the cover body (1) is provided with a ventilation hole (35) connecting the upper and lower sides of the cover body (1).

2. The straw sealing structure of a cup cover according to claim 1, characterized in that: The lower part of the suction nozzle (4) is provided with a reinforcing portion (43) extending along the length direction of the suction nozzle (4), and the reinforcing portion (43) increases the structural strength of the lower part of the suction nozzle (4) and prevents the lower part of the suction nozzle (4) from bending.

3. The straw sealing structure of a cup cover according to claim 2, characterized in that: At least two reinforcement parts (43) are arranged at the bottom of the suction nozzle (4), and the reinforcement parts (43) are arranged in sequence along the circumference of the suction nozzle (4); the suction nozzle (4) above the reinforcement parts (43) is bent under the action of the pressure block (22), and the bottom of the suction nozzle (4) is deformed, causing the relative positions of the reinforcement parts (43) to be deformed.

4. The straw sealing structure of a cup cover according to claim 1, characterized in that: The suction nozzle (4) is provided with a water suction hole (41), and the slot (42) is provided at the end of the water suction hole (41) and is in communication with the water suction hole (41).

5. The straw sealing structure of a cup cover according to claim 1, characterized in that: The suction nozzle (4) is provided with a first elastic diaphragm (44), which blocks the suction nozzle (4) and restricts air or liquid from passing through the suction nozzle (4), and a first slit (45) is provided on the first elastic diaphragm (44). Under the action of an external force, the first slit (45) can be deformed so that the first slit (45) becomes larger, thereby allowing air or liquid to pass through the suction nozzle (4).

6. The straw sealing structure of a cup cover according to claim 1, characterized in that: The pressing block (22) is provided with a guiding inclined surface (221), and the pressing block (22) is guided by the guiding inclined surface (221) to penetrate into the slot (42).

7. The straw sealing structure of a cup cover according to claim 1, characterized in that: The rear part of the flip cover (2) is provided with a hinged part (24) rotatably connected to the cover body (1); the pressing block (22) drives the upper part of the suction nozzle (4) to bend toward the front of the cover body (1); the pressing block (22) is in the form of a sheet and extends to both sides of the flip cover (2); the pressing block (22) penetrates into the slot (42) and causes the suction nozzle (4) to bend along the extension direction of the pressing block (22).

8. The straw sealing structure of a cup cover according to claim 1, characterized in that: The cover body (1) is provided with a ventilation pipe (3), a ventilation hole (35) is provided in the ventilation pipe (3) and is connected to the upper and lower sides of the cover body (1), and the ventilation pipe (3) passes through the upper end of the cover body (1) and is exposed to the outside, a second elastic diaphragm (31) is provided in the ventilation pipe (3), the second elastic diaphragm (31) blocks the ventilation pipe (3) and restricts air or liquid from passing through the ventilation pipe (3), and a driving member (21) is provided on the flip cover (2), and a second slit (32) is provided on the second elastic diaphragm (31); during the process of controlling the flip cover (2) and the cover body (1) to open relative to each other, the driving member (21) can drive the second elastic diaphragm (31) to deform, thereby enlarging the second slit (32), thereby allowing air or liquid to pass through the ventilation pipe (3), and the second elastic diaphragm (31) can automatically reset and seal the second slit (32).

9. The straw sealing structure of a cup cover according to claim 8, characterized in that: The ventilation pipe (3) is provided with an inclined first guide surface (34) to control the flip cover (2) to close onto the cover body (1), and the driving member (21) is guided by the first guide surface (34) to pass over the ventilation pipe (3) and move the driving member (21) to one side of the ventilation pipe (3).

10. The straw sealing structure of a cup cover according to claim 9, characterized in that: The driving member (21) is provided with a second hook portion (211), and a first hook portion (33) adapted to the second hook portion (211) is provided on the side of the ventilation tube (3). When the flip cover (2) and the cover body (1) are controlled to open relative to each other, the second hook portion (211) abuts against the first hook portion (33), thereby driving the ventilation tube (3) to deform.

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