Fastening elastic card bag, fastening method and application

Abstract

The present disclosure relates to a fastening elastic card bag, a fastening method and application. A card bag body comprises a left shell and a right shell. The left shell and the right shell are detachably connected through an inner shell and a shell. The left shell and the right shell are connected through a shell connector. After the left shell and the right shell are connected through the shell connector, an opening is formed, and articles in an accommodating cavity are put into or taken out of the card bag through the opening. The shell connector is an elastic connector.

What is claimed is: 
     
         1 . A fastening elastic card bag, comprising a card bag body, wherein the card bag body comprises a left shell and a right shell, the left shell and the right shell are detachably connected by an inner shell and an outer shell, the left shell and the right shell are connected through a shell connector, an opening is formed after the left shell and the right shell are connected through the shell connector, an accommodating cavity is formed by the inner walls of the left shell, the right shell and the shell connector, and articles in the accommodating cavity can be put in or taken out through the opening; and the shell connector is an elastic connector, the shell connector is connected with the inner shell, and the left shell and the right shell move towards or away from each other under the action of the elastic connector to open or close the opening. 
     
     
         2 . The card bag according to  claim 1 , wherein the elastic connector comprises two opposite side connectors and a bottom side connector, two ends of the opposite side connector and the bottom connector are respectively arranged on two inner shells, the two inner shells are connected through the opposite side connectors and the bottom connector, the opposite side connector is an elastic connector, the bottom connector is an inelastic connector, and after the shell connector is opened, the left shell and the right shell move away from each other so that the accommodating cavity becomes V-shaped. 
     
     
         3 . The card bag according to  claim 2 , wherein the elastic connector comprises an elastic band and steel bars arranged at the two ends of the elastic band, a locking part corresponding to the elastic connector is arranged on the inner shell, and the elastic connector is fixed on the inner shell through the locking part. 
     
     
         4 . The card bag according to  claim 3 , wherein a locking part is arranged on the side, close to the outer shell, of the inner shell, the locking part comprises an elongated groove for fixing the steel bar and a concave groove for fixing the elastic band, the elongated groove and the concave groove are connected, and the elongated groove and the concave groove are integrally formed and fixedly arranged inside the inner shell. 
     
     
         5 . The card bag according to  claim 4 , wherein the diameter of the steel bar is the same as the height of the elongated groove, and the height of the concave groove is the same as the thickness of the elastic band or the inelastic band corresponding to the concave groove. 
     
     
         6 . The card bag according to  claim 5 , wherein the locking part is arranged on the surface of the inner shell, and the elastic connector is arranged at the locking part and fixed by the locking force of the outer shell and the inner shell. 
     
     
         7 . The card bag according to  claim 6 , wherein the shell connector and the inner shell are fixedly connected. 
     
     
         8 . The card bag according to  claim 6 , wherein the shell connector is arranged between the outer shell and the inner shell, a partition plate is also arranged between the outer shell and the inner shell, the shell connector is arranged between the inner shell and the partition plate, and the partition plate is detachably connected with the outer shell and the inner shell. 
     
     
         9 . The card bag according to  claim 2 , wherein the shell connector also comprises two transverse connectors, the two transverse connectors, the two opposite side connectors and the bottom side connector are connected to form an elastic card pocket with an upper opening, and the elastic card pocket is connected with the inner shell. 
     
     
         10 . The card bag according to  claim 9 , wherein the elastic card pocket and the inner shell are fixedly connected. 
     
     
         11 . The card bag according to  claim 9 , wherein the elastic card pocket is arranged between the outer shell and the inner shell, a partition plate is also arranged between the outer shell and the inner shell, the elastic card pocket is arranged between the inner shell and the partition plate, and the partition plate is detachably connected with the outer shell and the inner shell. 
     
     
         12 . The card bag according to  claim 2 , wherein the bottom side connector is an elastic connector, the bottom side connector can stretch or contract when the left shell and the right shell move towards or away from each other, and after the shell connector is opened, the left shell and the right shell move away from each other so that the accommodating cavity becomes square. 
     
     
         13 . The card bag according to  claim 1 , wherein internal notches are formed in the left shell and the right shell. 
     
     
         14 . The card bag according to  claim 13 , wherein the connector is an elastic band, and the internal notch is not covered with the elastic band or a part of the internal notch is covered with the elastic band. 
     
     
         15 . The card bag according to  claim 13 , wherein the connector is an elastic card pocket, and an internal notch is correspondingly formed in the elastic card pocket. 
     
     
         16 . The card bag according to  claim 1 , wherein one side of the shell is also provided with a back clamp, the back clamp is integrally fixedly connected or detachably connected with the shell, the card bag is fixed through the back clamp, the opening is also provided with a stopper for locking the card bag in a closed state, and when the card bag is closed, the stopper has a stopper effect on the articles in the card bag. 
     
     
         17 . The card bag according to  claim 16 , wherein the back clamp is detachably connected with the shell through buckles or screws, and the stopper closes and locks the left shell and the right shell through buckle connection. 
     
     
         18 . A fastening method of the fastening card bag, based on the fastening card bag according to  claim 1 , comprising the following steps:
 separating the left shell and the right shell of the card bag away from each other; and   placing the articles needing to be placed in the accommodating cavity.   
     
     
         19 . Application of the fastening card bag, based on the fastening card bag according to  claim 1 , wherein the card bag is used for placing articles with small thickness and square overall shapes. 
     
     
         20 . The application according to  claim 19 , wherein the card bag is used for placing paper money, identity cards, bank cards and other articles.