Manual toothbrush

Abstract

A manual toothbrush, comprising: a toothbrush main body, the casing of the top portion of the toothbrush main body is configured with one or more first connecting holes; one or more bristle tuft assemblies, every bristle tuft assembly comprises a bristle tuft and a base, bristle tufts of one or more bristle tuft assemblies go through one or more first connecting holes respectively; a spring assembly, the spring assembly comprises one or more springs, every spring comprises a coil and a coil fastening plate connecting with the coil, coils of one or more springs contact with bases of one or more bristle tuft assemblies respectively; the spring assembly also comprises an assembly base plate and an assembly surface plate, the coil fastening plate of every spring is clamped and fixed between the assembly base plate and the assembly surface plate. This manual toothbrush skillfully is configured with springs, based upon the contact between the spring and the bristle tuft assembly, to realize the flexible movement and spring force driving of the bristle tuft, making every bristle tuft independently move upward and downward according to the surface and structure of teeth, achieving the benefit of effective cleaning and durable usage.

What is claimed is: 
     
         1 . A manual toothbrush, comprising:
 a toothbrush main body ( 1 ), the casing of the top portion of said toothbrush main body ( 1 ) is configured with one or more first connecting holes ( 11 );   one or more bristle tuft assemblies ( 2 ), every said bristle tuft assembly ( 2 ) comprises a bristle tuft ( 21 ) and a base ( 22 ), bristle tufts ( 21 ) of one or more said bristle tuft assemblies ( 2 ) go through one or more said first connecting holes ( 11 ) respectively;   a spring assembly ( 3 ), said spring assembly ( 3 ) comprises one or more springs ( 31 ), every said spring ( 31 ) comprises a coil ( 312 ) and a coil fastening plate ( 311 ) connecting with said coil ( 312 ), coils ( 312 ) of one or more said springs ( 31 ) contact with bases ( 22 ) of one or more said bristle tuft assemblies ( 2 ) respectively;   said spring assembly ( 3 ) also comprises an assembly base plate ( 32 ) and an assembly surface plate ( 33 ), the coil fastening plate ( 311 ) of every said spring ( 31 ) is clamped and fixed between said assembly base plate ( 32 ) and said assembly surface plate ( 33 ).   
     
     
         2 . The manual toothbrush according to  claim 1 , further comprising toothbrush back cover ( 4 ), the inner side wall of said toothbrush back cover ( 4 ) is configured with fitting protrusions ( 41 ), the size of which matches with the size of said spring assembly ( 3 ), said spring assembly ( 3 ) is fixed within said toothbrush back cover ( 4 ) through fitting into said fitting protrusions ( 41 ). 
     
     
         3 . The manual toothbrush according to  claim 2 , wherein, one or more first rivet connection holes ( 321 ) and one or more second rivet connection holes ( 331 ) are configured on said assembly base plate ( 32 ) and said assembly surface plate ( 33 ) respectively, one or more connecting rivets ( 5 ) go through one or more first rivet connection holes ( 321 ) and one or more second rivet connection holes ( 331 ) respectively for riveting, connecting said assembly base plate ( 32 ) and said assembly surface plate ( 33 ). 
     
     
         4 . The manual toothbrush according to  claim 3 , wherein, said assembly surface plate ( 33 ) is configured with one or more surface plate through holes ( 332 ), the size of which match with the size of coils ( 312 ) of one or more said springs ( 31 ), coils ( 312 ) of one or more said springs ( 31 ) go through one or more said surface plate through holes ( 332 ) respectively;
 said assembly base plate ( 32 ) is configured with one or more enclosed protrusions ( 322 ), the size of which match with the size of central holes of coil fastening plates ( 311 ) of one or more said springs ( 31 ), making coil fastening plates ( 311 ) of one or more said springs ( 31 ) being fixed by one or more enclosed protrusions ( 322 ) respectively.   
     
     
         5 . The manual toothbrush according to  claim 4 , wherein, the area of coil fastening plates ( 311 ) of one or more said springs ( 31 ) are larger than one or more said surface plate through holes ( 332 ), one or more said enclosed protrusions ( 322 ) go through one or more said surface plate through holes ( 332 ), compressing and fixing the coil fastening plates ( 311 ) of one or more said springs ( 31 ) between said assembly base plate ( 32 ) and said assembly surface plate ( 33 );
 after going through one or more said surface plate through holes ( 332 ) respectively, the coils ( 312 ) of one or more said springs ( 31 ) contact with the bases ( 22 ) of one or more said bristle tuft assemblies ( 2 ) respectively.   
     
     
         6 . The manual toothbrush according to  claim 1 , wherein, every said bristle tuft assembly ( 2 ) comprises a base ( 22 ), a compression plate ( 23 ), a bristle tuft ( 21 ) and a base support plate ( 24 ). 
     
     
         7 . The manual toothbrush according to  claim 6 , wherein, the base ( 22 ) of every said bristle tuft assembly ( 2 ) is configured with an accommodation chamber ( 221 ), a top opening ( 222 ), and a spring-holding base cavity ( 223 ), said base support plate ( 24 ) is placed horizontally and fit in the bottom of said accommodation chamber ( 221 ), said compression plate ( 23 ) is placed vertically and fit in said accommodation chamber ( 221 ); the middle part of said bristle tuft ( 21 ) is compressed and fixed between said vertically placed compression plate ( 23 ) and said horizontally placed base support plate ( 24 ), and both ends of said bristle tuft ( 21 ) go through the space in said accommodation chamber ( 221 ) and are set up and exposed outside said base ( 22 ). 
     
     
         8 . The manual toothbrush according to  claim 7 , wherein, said top opening ( 222 ) is configured with a splayed shape that is wide at the bottom and narrow at the top in order to compress said compression plate ( 23 ) inside said accommodation chamber ( 221 ), said spring-holding base cavity ( 223 ) accommodates the top portion of the coil ( 312 ) of the spring ( 31 ), realizing that said bristle tuft ( 2 ) press said spring ( 31 ) downward when exerted by external force, and said bristle tuft ( 2 ) is moved upward driven by said spring ( 31 ) when the external force is removed. 
     
     
         9 . The manual toothbrush according to  claim 8 , wherein, for every said first connecting hole ( 11 ), the upper part is narrow and the lower part is wide, said base ( 22 ) is accommodated inside the lower part, and said bristle tuft ( 21 ) goes through the upper part and is exposed outside said toothbrush main body ( 1 ) for cleansing teeth. 
     
     
         10 . The manual toothbrush according to  claim 9 , wherein, the bottom of every said base ( 22 ) is configured with a fixing flange ( 224 ), the size of said fixing flange ( 224 ) is larger than the opening size of said spring-holding base cavity ( 223 ).