Water-replenishing pipe dredging device

A water-replenishing pipe dredging device, comprising:

• a push-pull unit, comprising a main body pipe, a pulling part connected with a first end of the main body pipe and configured to extend and retract inside an interior of the main body pipe, and a suction part connected with a second end of the main body pipe, the second end of the main body pipe being opposite to the end of the main body to which the pulling part is connected, 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 sleeved on the upper part of the main body pipe, and wherein the compression spring is configured to be 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 at an upper part of the fixator to be assembled with the lower part of the main body pipe, a second assembling body located at 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 arranged at the same side of the main body pipe as the first buckle, and a first tubular connector formed on the outer periphery of the first assembling body and located below the second buckle, and wherein the first tubular connector is provided with a water inlet being in fluid communication with an interior of the fixator;
• 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 clamped with 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 an upper part of the ventilation and pressure relief pipe extends into the second insertion hole, and a plug body configured to plug the ventilation hole is provided, 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 and configured to uncover or cover the plurality of outlets of the anti-backflow piece so as to place the plurality of outlets in either a circulating state or a 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, a convex connecting cover located at the top of the lower cover, and a channel formed in the lower cover and spaced apart from the fourth insertion hole and the adjustment groove, wherein the lower part of the ventilation and pressure relief pipe body extends into the fourth insertion hole, 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 and a through hole spaced apart from the fifth insertion hole, and wherein the lower cover seat comprises a fourth inner sleeve hole for placing the gasket and the lower cover, a second tubular 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 tubular connector, a second buckling body formed at the outer periphery of the lower part of the lower cover seat, located on a same side of the water replenishing unit 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 tubular 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 of the gasket and the adjustment groove of the lower cover and is provided as an axial point when the lower cover is rotated, and wherein the communication pipe comprises a first connector sleeved on the second tubular connector and communicated with the water outlet, and a second connector sleeved on the first tubular connector and communicated with the water inlet,
• wherein the water-replenishing pipe dredging device is configured to fluid communicate the ventilation and pressure relief pipe body with the main body pipe by rotating the upper cover to a first fixed position,
• wherein the water-replenishing pipe dredging device is configured to fluid communicate the plurality of outlets of the anti-backflow piece with the channel and the water outlet to let water in the water replenishing pipe is capable of smoothly entering the main body pipe through the water outlet and the water inlet by rotating the upper cover to a second fixed position and removing the plug body from the ventilation hole.