Water-replenishing pipe dredging device

A water-replenishing pipe dredging device, comprising:

• a push-pull unit, comprises a main body pipe, a pulling part connected with one end of the main body pipe and pulled to be elongated inside an interior of the main body pipe, and a suction part connected with an other end of the main body pipe which is opposite to one end of the pulling part, wherein the pulling part comprises a straight pipe body penetrating into the main body pipe, a handle arranged on an upper part of the straight pipe body and provided to drive the straight pipe body to move inside the main body pipe, a push piece arranged on a lower part of the straight pipe body, a grip cover arranged on an upper part of the main body pipe and provided for the straight pipe body to penetrate, a piston arranged inside a lower part of the main body pipe, a pull rod penetrating into the straight pipe body and the piston, and a compression spring sleeved outside the pull rod and abutted between the push piece and the piston;
• and wherein the grip cover comprises an accommodating space formed at a bottom of the grip cover and provided with a downward opening, and a first buckle formed on one side of an outer periphery of the grip cover, the accommodating space is provided for placing the upper part of the main body pipe, and wherein the compression spring is extended and compressed between the push piece and the piston, and wherein the suction part comprises a fixator arranged below the main body pipe and a suction nozzle assembled below the fixator, the fixator comprises a first assembling body located an upper part of the fixator to be assembled with the lower part of the main body pipe, a second assembling body located a lower part of the fixator which is opposite to the first assembling body, a second buckle formed on an outer periphery of the first assembling body and located on a same direction as the first buckle, and a first convex connector formed on the outer periphery of the first assembling body and located below the second buckle, and wherein the first convex connector is provided with a water inlet communicating interiors of the first assembling body and the second assembling body;
• and
• a water replenishing unit, provided to replenish water when the push-pull unit is implemented, wherein the water replenishing unit comprises a water replenishing pipe located on one side of the main body pipe and correspondingly clamped with the main body pipe, an upper cover group covering a top of the water replenishing pipe and clamped with the pulling part, and a lower cover group covering a bottom of the water replenishing pipe and clamped with the suction part, and wherein the upper cover group comprises a ventilation and pressure relief pipe body arranged in the water replenishing pipe and provided with a ventilation and pressure relief hole, an upper fixing body arranged on an upper part of the water replenishing pipe, an upper cover ring body arranged on an upper part of the upper fixing body, and an upper cover covering the upper cover ring body and provided for an upper part of the ventilation and pressure relief pipe body to penetrate, and wherein the upper fixing body comprises a first embedded hole for the upper part of the water replenishing pipe to penetrate, and a first buckling body formed on an outer periphery of the upper fixing body and correspondingly clamping the first buckle, and wherein the upper cover ring body comprises a second embedded hole communicated with the first embedded hole and provided for the upper part of the water replenishing pipe to penetrate, and a convex block connected with an inner periphery of the second embedded hole and provided with a first insertion hole for the ventilation and pressure relief pipe body to penetrate, and wherein the upper cover comprises a first inner sleeve hole provided for the upper cover ring body to be inserted, a second insertion hole formed on the top of the upper cover and spaced apart from the first insertion hole, and a ventilation hole formed on the top of the upper cover and spaced apart from the second insertion hole, wherein the second insertion hole is communicated with the first inner sleeve hole and is penetrated by an upper part of the ventilation and pressure relief pipe body, and the ventilation hole is plugged by a plug body, wherein the lower cover group comprises an anti-backflow piece abutting an inner bottom of the water replenishing pipe and comprising a plurality of outlets, a water blocker arranged at the bottom of the anti-backflow piece for the plurality of outlets to form a circulating or blocking state, a lower cover covering a lower part of the water replenishing pipe and moving when the water replenishing pipe rotates, a gasket arranged at the bottom of the lower cover and provided for the lower part of the ventilation and pressure relief pipe body to penetrate, a lower cover seat covering the lower cover, and a communication pipe communicating the water replenishing pipe with the main body pipe, wherein the anti-backflow piece comprises a third insertion hole corresponding to the first insertion hole and provided for the lower part of the ventilation and pressure relief pipe body to penetrate, and wherein the lower cover comprises a second inner sleeve hole provided to place the lower part of the water replenishing pipe, a fourth insertion hole formed in the lower cover and corresponding to the third insertion hole, an adjustment groove formed in the lower cover and spaced apart from the fourth insertion hole, and a convex connecting cover located at the top of the lower cover, wherein the fourth insertion hole is communicated with the second inner sleeve hole and is penetrated by the lower part of the ventilation and pressure relief pipe body, and the convex connecting cover is provided with a third inner sleeve hole for placing the lower part of the water replenishing pipe, the bottom of the convex connecting cover abuts the top of the lower cover, and wherein the gasket comprises a fifth insertion hole corresponding to the fourth insertion hole, and a through hole spaced apart from the adjustment groove, and wherein the lower cover seat comprises a fourth inner sleeve hole for placing the gasket and the lower cover, a second convex connector located at the bottom of the lower cover seat and corresponding to the fifth insertion hole, a positioning convex grain formed at an inner bottom of the fourth inner sleeve hole and spaced apart from the second convex connector, a second buckling body formed at the outer periphery of the lower part of the lower cover seat, located on a same side as the first buckling body and correspondingly buckled with the second buckle, and a press-down screw cap screwed on an upper part of the lower cover seat, wherein the second convex connector is provided with a water outlet communicated with the fourth inner sleeve hole and the ventilation and pressure relief hole, and wherein the positioning convex grain penetrates into the through hole and the adjustment groove of the lower cover and provided as an axial point when the lower cover is rotated, and wherein the communication pipe comprises a first connector sleeved on the second convex connector and communicated with the water outlet, and a second connector sleeved on the first convex connector and communicated with the water inlet, and when water is replenished, and the upper cover is rotated to a fixed position on the water replenishing pipe, the ventilation and pressure relief pipe body is communicated with the main body pipe, and then the ventilation hole is covered with the plug body, and the ventilation and pressure relief pipe body is blocked, and the suction part is communicated with the main body pipe, and when the device is used, the upper cover is rotated to a fixed position on an other side, the plurality of outlets are aligned with the water outlet, and the plug body of the ventilation hole is removed, and the water outlet is communicated with the water inlet and the interior of the main body pipe.