Protective case for switch

The protection case comprises a protection case main body, the protection case main body is provided with two opposite side walls, heat dissipation holes are formed in the two side walls, a supporting block is arranged in the protection case main body, the supporting block is used for placing the switch, and the protection case main body is further provided with a first side wall with an opening. A cover plate is detachably arranged at the opening, a mounting groove is formed in the middle of the cover plate in a penetrating manner, a clamping plate is detachably arranged at the mounting groove, a positioning hole is formed in the clamping plate in a penetrating manner, a connector of the switch can extend out of the protection case body through the positioning hole and can clamp the connector of the switch, and the dustproof assembly is arranged in the protection case body. In the actual use scene of the switch, the protection case body can protect the switch from collision and friction, and the purpose of p