Abstract:
A backpack comprising a backpack body and a back cover is provided, an accommodating house is formed in the backpack body; and a first opening is defined in the backpack body to communicate the accommodating house with outside; the back cover is mounted on the backpack body detachably to cover or open the first opening of the backpack body. When implementing the backpack of the present application, the following advantageous effects can be achieved: the back cover is mounted on the backpack body detachably, so that the back cover or the backpack body can be replaced. Thus, when the back cover or the backpack body is damaged, the user of the backpack doesn&#39;t have to buy a completely new backpack.

Description:
FIELD OF THE INVENTION 
       [0001]    The present application relates to a backpack. 
       BACKGROUND OF THE INVENTION 
       [0002]    Backpacks configured for loading goods such as books, clothes, and foods are widely used in daily lives. A backpack in the prior art generally includes a backpack body and a back cover. If either the backpack body or the back cover is damaged in use, the backpack may be unable to be used. Thus, the backpack owner has to buy a completely new backpack, which brings troubles and financial loss to the backpack owner. 
       SUMMARY OF THE INVENTION 
       [0003]    The objective of the present application is to provide a backpack, aiming at the defect that a backpack in the prior art may be unable to be used when either a backpack body of the backpack or a back cover of the backpack is damaged. 
         [0004]    The technical solutions of the present application for solving the technical problems are as follows: 
         [0005]    in one aspect, a backpack comprising a backpack body and a back cover is provided, an accommodating house is formed in the backpack body; and a first opening is defined in the backpack body to communicate the accommodating house with outside; the back cover is mounted on the backpack body detachably to cover or open the first opening of the backpack body. 
         [0006]    In one embodiment, the back cover is mounted on the backpack body via a zipper detachably. 
         [0007]    In another embodiment, the zipper includes a first zipper rack and a second zipper rack corresponding to the first zipper rack; the first zipper rack is disposed along the edge of the first opening of the backpack body; the second zipper rack is disposed on the back cover, and a zipper puller is movably mounted on the first zipper rack or the second zipper rack; the first zipper rack engages with the second zipper rack via the zipper puller detachably. 
         [0008]    In another embodiment, the zipper includes a first zipper rack and a second zipper rack corresponding to the first zipper rack; the first zipper rack is disposed along the edge of the first opening of the backpack body; and the second zipper rack is disposed on the back cover; one zipper puller is movably mounted on the first zipper rack, and one zipper puller is movably mounted on the second zipper rack; the first zipper rack engages with the second zipper rack via any one of the zipper pullers detachably. 
         [0009]    In another embodiment, the back cover is mounted on the backpack body via a plurality of fasteners detachably. 
         [0010]    In another embodiment, each of the fasteners includes a fastener body and a recess corresponding to the fastener body; a plurality of the fastener bodies are disposed along the edge of the first opening of the backpack body, and a plurality of the recesses are disposed on the back cover; the fastener bodies are detachably buckled in the recesses respectively. 
         [0011]    In another embodiment, each of the fasteners includes a fastener body and a recess corresponding to the fastener body; a plurality of the recesses are disposed along the edge of the first opening of the backpack body, and a plurality of the fastener bodies are disposed on the back cover; the fastener bodies are detachably buckled in the recesses respectively. 
         [0012]    In another embodiment, the back cover is mounted on the backpack body via a Velcro detachably. 
         [0013]    In another embodiment, the Velcro includes a velour area and a crochet area corresponding to the velour area; the velour area is disposed along the edge of the first opening of the backpack body, and the crochet area is disposed on the back cover; and the crochet area is stick to the velour area detachably. 
         [0014]    In another embodiment, the Velcro includes a velour area and a crochet area corresponding to the velour area; the crochet area is disposed along the edge of the first opening of the backpack body, and the velour area is disposed on the back cover; and the crochet area is stick to the velour area detachably. 
         [0015]    When implementing the backpack of the present application, the following advantageous effects can be achieved: the back cover is mounted on the backpack body detachably, so that both the back cover and the backpack body can be replaced. Thus, when either the back cover or the backpack body is damaged, the user of the backpack can only buy a new back cover or a new backpack body to replace the damaged one, and doesn&#39;t need to buy a whole new backpack. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0016]    The present application will be further described with reference to the accompanying drawings and embodiments in the following, in the accompanying drawings: 
           [0017]      FIG. 1  is an exploded view of a backpack of a first embodiment of the present application; 
           [0018]      FIG. 2  is an exploded view of a backpack of a second embodiment of the present application; 
           [0019]      FIG. 3  is an exploded view of a backpack of a third embodiment of the present application. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0020]    In the present application, a backpack  100  comprises a backpack body  101  and a back cover  102  mounted on the backpack body  101  detachably. 
         [0021]    Specifically, an accommodating house is formed in the backpack body  101 , and the accommodating house is configured for loading goods, such as books, clothes, and other things. A first opening is defined in the backpack body  101  to communicate the accommodating house with outside. The back cover  102  is connected with the backpack body  101  to form the backpack  100 , and the back cover  102  can be moved to cover or open the first opening of the backpack body  101 . Thus, the backpack  100  can be used as a conventional backpack. 
         [0022]    Advantageously, in the present application, two straps  103  are arranged on the back cover  102 . Specifically, the two straps  103  are sewed on the back cover  102 . Of course, the connection method between the straps  103  and the back cover  102  is not limited to the sewed method, and can be a buckled method. Particularly, two ends of each of the straps  103  are buckled on the back cover  102  to achieve a connection between each of the straps  103  and the back cover  102 . Thus, when the back cover  102  is mounted on the backpack body  101  to form the backpack  100 , a user can carry the backpack  100  conveniently via the two straps  103 . It is understood that there can also be only one strap  103  sewed on the back cover  102 . 
         [0023]    Normally, the two straps  103  are flexible, and can be made of cotton or chemical fiber, etc. 
         [0024]    Additionally, the two straps  103  can also be arranged on the backpack body  101 . Advantageously, the two straps  103  are respectively sewed on two external side surfaces of the backpack body  101  that are opposite to each other. Moreover, both the two straps  103  abut the first opening of the backpack body  101 . Thus, when the back cover  102  is mounted on the backpack body  101  to form the backpack  100 , a user can carry the backpack  100  via the two straps  103  conveniently. 
         [0025]    Of course, the two straps  103  can also be mounted in the accommodating house. In this situation, two through-holes corresponding to the two straps  103  should be defined in the back cover  102 . When the back cover  102  is mounted on the backpack body  101 , the two straps  103  can pass through the two through-holes of the back cover  102  respectively, so that a user can use the two straps  103  to carry the backpack  100 . 
         [0026]    The present application provides three connection methods for connecting the back cover  102  with the backpack body  101 , and the three connection methods are respectively described in the following three embodiments. 
         [0027]      FIG. 1  is an exploded view of a backpack  100  of a first embodiment of the present application. 
         [0028]    In the first embodiment, the back cover  102  is mounted on the backpack body  101  via a zipper  200  detachably. Specifically, the zipper  200  includes a first zipper rack  201  and a second zipper rack  202  corresponding to the first zipper rack  201 . The first zipper rack  201  is disposed along the edge of the first opening of the backpack body  101 , and the second zipper rack  202  is disposed on the back cover  102 . A zipper puller  203  is movably mounted on the first zipper rack  201  or the second zipper rack  202 . Thus, the first zipper rack  201  can engage with the second zipper rack  202  via the zipper puller  203 , so that the backpack body  101  can be mounted on the back cover  102 . 
         [0029]    It is understood that two zipper pullers  203  can be provided. In this embodiment, one zipper puller  203  is movably mounted on the first zipper rack  201 , and the other zipper puller  203  is movably mounted on the second zipper rack  202 . The first zipper rack  201  can engage with the second zipper rack  202  via any one of the two zipper pullers  203 , so that the backpack body  101  can be mounted on the back cover  102 . Moreover, the first zipper rack  201  can be separated from the second zipper rack  202 , so that the backpack body  101  can be separated from the back cover  102 . By adopting the two zipper pullers  203 , the situation that the only one damaged zipper puller  203  causes unavailability of the backpack  100  is avoided. 
         [0030]    When the backpack body  101  is mounted on the back cover  102 , the zipper  200  can be used to open or close the first opening of the accommodating house. Thus, goods can be received by the accommodating house. 
         [0031]    Of course, a second opening can be defined in the backpack body  101  to communicate the accommodating house with outside. Moreover, the second opening can be sealed by a sealed device  500  mounted on the backpack body  101 , such as a zipper, a buckle or a Velcro, etc. Thus, goods can be put into the accommodating house through the second opening. 
         [0032]      FIG. 2  is an exploded view of a backpack  100   a  of a second embodiment of the present application. 
         [0033]    The backpack  100   a  also includes a backpack body  101  and a back cover  102 . The difference between the backpack  100   a  of the second embodiment and the backpack  100  of the first embodiment is that the backpack  100   a  of the second embodiment adopts another connection method for connecting the backpack body  101  with the back cover  102 . 
         [0034]    In the second embodiment, the back cover  102  is mounted on the backpack body  101  via a plurality of fasteners  300  detachably. Specifically, each of the fasteners  300  includes a fastener body  301  and a recess  302  corresponding to the fastener body  301 . A plurality of the fastener bodies  301  are disposed along the edge of the first opening of the backpack body  101 , and a plurality of the recesses  302  are disposed on the back cover  102 . Thus, as the fastener bodies  301  are detachably buckled in the recesses  302  respectively, the backpack body  101  is mounted on the back cover  102 . 
         [0035]    It is understood that a plurality of the recesses  302  are disposed along the edge of the first opening of the backpack body  101 , and a plurality of the fastener bodies  301  are disposed on the back cover  102 , as shown in  FIG. 2 . 
         [0036]    The fastener body  301  can be separated from the recess  302  corresponding to the fastener body  301 , so that the first opening is open. Goods can be put into the accommodating house via the first opening. 
         [0037]      FIG. 3  is an exploded view of a backpack  100   b  of a third embodiment of the present application. 
         [0038]    The backpack  100   b  also includes a backpack body  101  and a back cover  102 . The difference between the backpack  100   b  of the third embodiment and the backpack  100  of the first embodiment is that the backpack  100   b  of the third embodiment adopts another connection method for connecting the backpack body  101  with the back cover  102 . 
         [0039]    In the third embodiment, the back cover  102  is mounted on the backpack body  101  via a Velcro  400  detachably. Specifically, the Velcro  400  includes a velour area  401  and a crochet area  402  corresponding to the velour area  401 . The velour area  401  is disposed along the edge of the first opening of the backpack body  101 , and the crochet area  402  is disposed on the back cover  102 . The crochet area  402  is stick to the velour area  401  detachably. Thus, as the crochet area  402  is stick to the velour area  401 , the backpack body  101  is mounted on the back cover  102 . 
         [0040]    It is understood that the crochet area  402  can be disposed along the edge of the first opening of the backpack body  101 , and the velour area  401  can be disposed on the back cover  102  correspondingly. 
         [0041]    The velour area  401  can be separated from the crochet area  402  corresponding to the velour area  401  partially, so that the first opening is open. Goods can be put into the accommodating house via the first opening. 
         [0042]    Advantageously, the backpack body  101  can be mounted on the back cover  102  by adopting both the zipper  200  and the fastener  300 , wherein the fastener  300  has a locating function for the convenience of closing the first opening via the zipper  200 . 
         [0043]    Additionally, the backpack body  101  can also be mounted on the back cover  102  by adopting both the zipper  200  and the Velcro  400 . 
         [0044]    While the embodiments of the present application are described with reference to the accompanying drawings above, the present application is not limited to the above-mentioned specific implementations. In fact, the above-mentioned specific implementations are intended to be exemplary not to be limiting. In the inspiration of the present application, those ordinary skills in the art can also make many modifications without breaking away from the subject of the present application and the protection scope of the claims. All these modifications belong to the protection of the present application.