Valve structure, bottle cap, and bottle

Abstract

A valve structure, a bottle cap, and a bottle are provided, relating to the technical field of bottles. The valve structure includes a rigid connecting portion, a flexible valve body, and a connecting part. The rigid connecting portion has a liquid flow channel, and the liquid flow channel axially penetrates through the rigid connecting portion. The flexible valve body is located inside the liquid flow channel and connected to the rigid connecting portion, a valve opening is arranged at a middle of the flexible valve body, and the flexible valve body is configured to be deformed under pressure to open the valve opening. The connecting part is arranged on an outer wall of the rigid connecting portion, and the rigid connecting portion is detachably connected to an inner wall of a water outlet of a cap body by the connecting part.

What is claimed is: 
     
         1 . A valve structure, comprising:
 a rigid connecting portion having a liquid flow channel axially penetrating through the rigid connecting portion;   a flexible valve body located inside the liquid flow channel and connected to the rigid connecting portion, wherein a valve opening is arranged at a middle of the flexible valve body, and the flexible valve body is configured to be deformed under pressure to open the valve opening; and   a connecting part arranged on an outer wall of the rigid connecting portion, wherein the rigid connecting portion is detachably connected to an inner wall of a water outlet of a cap body by the connecting part.   
     
     
         2 . The valve structure according to  claim 1  wherein
 the flexible valve body is integrally formed with the rigid connecting portion, is fixedly connected to the rigid connecting portion, and covers the water outlet; 
 an upper end of the flexible valve body has a flange that covers an upper surface of the rigid connecting portion, and the flange is configured to seal a connection position between the rigid connecting portion and the cover body; and 
 a diameter of an outermost edge of the rigid connecting portion is not less than 31.75 mm. 
 
     
     
         3 . The valve structure according to  claim 1  wherein the rigid connecting portion comprises:
 a rigid outer tube, wherein the connecting part is arranged on an outer wall of the rigid outer tube, and the liquid flow channel passes through the rigid outer tube; and 
 an ice-stopping part that is detachably arranged at one end of the rigid outer tube and covers the liquid flow channel. 
 
     
     
         4 . The valve structure according to  claim 3 , wherein the ice-stopping part comprises:
 a casing embedded inside the rigid outer tube, wherein a snap piece is arranged on an outer wall of the casing; and   a filter part arranged at the casing and configured to prevent a predetermined solid object in liquid from entering the liquid flow channel,   wherein a snap groove is arranged on an inner wall of the rigid outer tube, and the snap piece is connected inside the snap groove to make the casing connected to the rigid outer tube.   
     
     
         5 . The valve structure according to  claim 4  wherein
 the snap piece comprises a snap boss that protrudes from a surface of the outer wall of the casing; 
 the snap groove comprises an axial groove and a circumferential groove, wherein one end of the axial groove toward the flexible valve body is connected to the circumferential groove, and the snap boss slides along the axial groove and rotates to enter the circumferential groove; and 
 the ice-stopping part further comprises a holding part that is arranged at a bottom of the casing. 
 
     
     
         6 . The valve structure according to  claim 3  wherein
 the outer wall of the rigid outer tube and an inner wall of the cap body are spaced apart to form a liquid outlet space; and 
 a side hole is arranged on the outer wall of the rigid outer tube, and the side hole is connected to both the liquid outlet space and the liquid flow channel, and the side hole is configured to allow fluid to pass through. 
 
     
     
         7 . The valve structure according to  claim 6  wherein
 one end of the rigid outer tube deviating from the water outlet is arranged with a holding stop plate, and the holding stop plate and the inner wall of the cap body are spaced apart; and 
 a recess is arranged at an edge of the holding stop plate, and the recess is connected to the liquid outlet space, and the recess is configured to allow fluid to pass through. 
 
     
     
         8 . The valve structure according to  claim 1 , wherein the connecting part comprises a semi-circle spiral thread that is configured to be connected to a connection position on an inner wall of the cap body. 
     
     
         9 . A bottle cap comprising a cap body and the valve structure according to  claim 1 , wherein the cap body is arranged with a water outlet, and the valve structure is detachably connected inside the water outlet of the cap body. 
     
     
         10 . A bottle comprising a bottle body and the bottle cap according to  claim 9 .