Housing Assembly

1. A housing assembly comprising: a first housing, having a top board and two side boards connected to the top board; a second housing, having a bottom board; two first bolts, respectively disposed at the two side boards of the first housing, wherein each of the first bolts is arranged proximal to one end of one of the two side boards, and each of the first bolts protrudes on an inner face of one of the two side boards; two second bolts, respectively disposed at the two side boards of the first housing, wherein each of the second bolts is arranged proximal to another end of one of the two side boards, and each of the second bolts protrudes on an inner face of one of the two side boards; two first guiding rails, respectively disposed at two sides of the bottom board of the second housing, wherein each of the first guiding rails is arranged proximal to one end of one of the sides of the bottom board, each of the two first guiding rails has a first guiding groove, each of the first guiding grooves includes a first vertical section and a first horizontal section, the lower end of each of the first vertical sections is formed with a first opening, the upper end of each of the first vertical sections is connected to one end of the respective first horizontal section, and the other end of each of the first horizontal sections is formed with a first fixing node; two second guiding rails, respectively disposed at two sides of the bottom board of the second housing, wherein each of the second guiding rails is arranged proximal to another end of one of the sides of the bottom board, each of the two second guiding rails has a second guiding groove, each of the second guiding grooves includes a second vertical section and a second horizontal section, the upper end of each of the second vertical sections is formed with a second opening, the lower end of each of the second vertical sections is connected to one end of the respective second horizontal section, and the other end of each of the second horizontal sections is formed with a second fixing node; wherein the two first bolts respectively pass through the first openings, the first vertical sections, and the first horizontal sections of the two first guiding grooves, the two second bolts respectively pass through the second openings, the second vertical sections, and the second horizontal sections of the two second guiding grooves, so that the two first bolts respectively move to the two first fixing nodes, the two second bolts respectively move to the two second fixing nodes, and the first housing and the second housing are joined together.

2. The housing assembly according to claim 1 , wherein the two side boards of the first housing are each formed with a snap hole, the two sides of the second housing each have an elastic snap, the elastic snaps each have an elastic board, a snap body is disposed on each of the elastic boards, and the snap bodies selectively respectively snaps into the snap holes.

3. The housing assembly according to claim 1 , wherein the two first bolts each have a first shaft portion and a first head portion connected to one end of the first shaft portion, and the two second bolts each have a second shaft portion and a second head portion connected to one end of the second shaft portion.

4. The housing assembly according to claim 3 , wherein the first head portions of the two first bolts respectively abut inner faces of the two first guiding rails, the second head portions of the two second bolts respectively abut inner faces of the two second guiding rails, so that each of the two first guiding rails is sandwiched between one of the two side boards and the first head portion of one of the two first bolts, and each of the two second guiding rails is sandwiched between one of the two side boards and the second head portion of one of the two second bolts.

5. The housing assembly according to claim 1 , wherein the two first guiding rails extend upward respectively from two sides of the bottom board of the second housing, and the two first guiding rails are substantially perpendicular to the bottom board.

6. The housing assembly according to claim 1 , wherein the two second guiding rails extend upward respectively from two sides of the bottom board of the second housing, and the two second guiding rails are substantially perpendicular to the bottom board.

7. The housing assembly according to claim 1 , further comprising an electric circuit module having a circuit board, wherein the circuit board has a plurality of fixing holes, each of the fixing holes include a first portion and a second portion in fluid communication with each other, the bottom board of the second housing has a plurality of protruding domes disposed thereon, each of the protruding domes has a protruding portion, a connection portion and a pressing portion, the protruding portion protrudes from the bottom board, the connection portion is connected to the protruding portion, the pressing portion is connected to the connection portion, the electric circuit module is disposed on the protruding portions of the protruding domes, the pressing portions pass through the first portions of the fixing holes, the pressing portions move above the second portions of the fixing holes, and the pressing portions press the top face of the circuit board.

8. The housing assembly according to claim 7 , wherein the first housing has a rear board, and the rear board of the first housing abuts one end of the circuit board.

9. The housing assembly according to claim 1 , further comprising at least one flexible body, the second housing further includes a front board, the flexible body is disposed between the bottom face of the front end of the top board of the first housing and the upper face of the front board of the second housing.