Internal explosion-proof device for high-safety jaw crusher

The invention provides an internal explosion-proof device for a high-safety jaw crusher. Transmission rods are slidably mounted in the left end and the right end of a jaw plate wheel, and rotatably mounted in frame seats; spring seats are fixedly mounted on the outer surfaces of the frame seats, and bevel gear rods penetrate through the upper surfaces and the lower surfaces of the frame seats; push rods are attached to the inner side surfaces of the frame seats, and telescopic bags are attached to the tops of the push rods; discs are meshed with the top ends of the bevel gear rods; when the dust amount in the crusher body reaches the maximum, dust is absorbed through the telescopic bags, and then the push rods are pushed to move; the frame seats are extruded by the push rods to move outwards; therefore, the transmission rods are driven to move, and then meshed with the bevel gear rods; then, the bevel gear rods are driven to rotate together; when the dust amount is gradually reduced, the frame seats are moved inwards through the spring seats, and therefore the transmission rods are separated from the bevel gear rods; and thus, the purpose of automatically avoiding dust explosion according to the internal dust amount is achieved.