Mobile telephone back-clamping device

An improved mobile telephone back-clamping device, consisting of:

• a telephone rack, having a rectangular trough at a center thereof, and having two clasping blocks, with each clasping block being disposed at a respective side at a front end of said telephone rack, said telephone rack further having an extended part extending out from a base plate of the rectangular trough, the extended part having a barb at a front end thereof, and an inclined block on each of its respective sides;
• and
• a fixture attachable to said telephone rack, one end of said fixture being opened to cover the front end of said telephone rack, said fixture having a partition board disposed therein, the partition board having an outlet, wherein when said fixture is attached to said telephone rack, the partition board will be disposed right next to a top of the inclined blocks, allowing the barb to project out through a top of the outlet;
• a pushing block attachable only to a rear end of said telephone rack, and having two pushing rods that extend out from a front end thereof, each pushing rod having an inclined pressed part, and a pushing part having a barbed structure formed on an outer side thereof, the entire front end of said pushing block being insertable into the rectangular trough of said telephone rack, with the barbed structure of each of said pushing parts pushing against the rectangular trough;
• wherein when said pushing block is not pressed, the barb at the front end of the extended part will project out through the outlet of the partition board of the fixture, and when said pushing block is pressed, a slope of the respective inclined pressed parts will press right on the top of the inclined blocks to force the barb down, thereby lowering the barb;
• a back-clamping plate attached to said telephone rack;
• and
• a clamp-on plate attached to said back-clamping plate.