CN-224228844-U - Hand water pump hanging core of well

CN224228844UCN 224228844 UCN224228844 UCN 224228844UCN-224228844-U

Abstract

The utility model relates to the field of hand-operated water pumps of water wells, in particular to a hand-operated water pump hanging core of a water well, which comprises the following components: piston, jib, piston valve rubber pad, go up metal washer, lower metal washer and spring, jib lower extreme fixed connection piston, the piston middle part is equipped with the through-hole, the piston bottom is equipped with the lower steel washer that the internal diameter is less than the through-hole diameter, the jib middle part is equipped with the endocentric montant of through-hole, go up metal washer, piston valve rubber pad and lower metal washer cover in proper order and locate on the montant, go up the piston valve rubber pad clamp between metal washer and the lower metal washer through the bolt assembly, the spring housing is located on the montant and is located upper metal washer top, piston valve rubber pad external diameter is less than the lower extreme internal diameter of through-hole and is greater than the internal diameter of lower steel washer, has effectively promoted pumping efficiency to the life of hanging core has been prolonged.

Inventors

GU XIAOMING
LI LIHUI
Zhang Tiankang
WU JIAJIE

Assignees

浙江省平湖技师学院

Dates

Publication Date: 20260512
Application Date: 20250515

Claims (5)

1. The hand-operated water pump hanging core for the water well is characterized by comprising a piston, a hanging rod, a piston valve rubber pad, an upper metal gasket, a lower metal gasket and a spring, wherein the lower end of the hanging rod is fixedly connected with the piston, a through hole is formed in the middle of the piston, a lower steel gasket with the inner diameter smaller than the diameter of the through hole is arranged at the bottom of the piston, a vertical rod concentric with the through hole is arranged in the middle of the hanging rod, the upper metal gasket, the piston valve rubber pad and the lower metal gasket are sequentially sleeved on the vertical rod, the upper metal gasket and the lower metal gasket clamp the piston valve rubber pad between the upper metal gasket and the lower metal gasket through a bolt assembly, the spring is sleeved on the vertical rod and is positioned above the upper metal gasket, and the outer diameter of the piston valve rubber pad is smaller than the inner diameter of the lower end of the through hole and larger than the inner diameter of the lower steel gasket.
2. The hand-operated water pump hanging core for water wells as claimed in claim 1, wherein the upper metal washer is symmetrically provided with an inner hexagonal screw rod, the inner hexagonal screw rod sequentially penetrates through the upper metal washer, the piston valve rubber pad and the lower metal washer, and the lower end of the inner hexagonal screw rod is in threaded connection with a third nut positioned at the lower end of the lower metal washer.
3. The hand pump core of claim 1, wherein the upper and lower metal washers are stainless steel.
4. The hand-operated water pump hanging core for water wells according to claim 1, wherein the hanging rod comprises at least two groups of connecting rods, an upper steel washer is arranged on the upper side inside the piston, the connecting rods sequentially penetrate through the upper steel washer, the piston and the lower steel washer, and a first nut positioned at the upper end of the upper steel washer and a second nut positioned at the lower end of the lower steel washer are connected to the connecting rods in a threaded mode.
5. A hand operated water pump core according to claim 4, wherein the upper steel washer is threaded with a screw which is secured by a bottom nut after passing through the upper steel washer, the piston and the lower steel washer in sequence.

Description

Hand water pump hanging core of well Technical Field The utility model relates to the field of hand-operated water pumps of water wells, relates to a hand-operated water pump hanging core of a water well. Background In rural areas, water wells are an important source for obtaining domestic water, while manual water pumps are common water pumping devices. However, with long-term frequent use, the suspended core assembly inside the hand-operated water pump exposes a number of problems. Wherein, the piston valve rubber pad is as key part, very easily appears fatigue fracture phenomenon. Because rural water demand is frequent, hand pump use duration and frequency are higher, and piston valve rubber pad bears great pressure in continuous reciprocating motion, after a period of time, just can fracture because of fatigue, leads to the hand pump unable normal work, has greatly influenced village's daily water. The service life of the hand-operated water pump is reduced, the cost for replacing the hanging core is increased, and economic burden is brought to villagers. In addition, the existing piston valve rubber pad connection mode has obvious defects. The piston valve rubber pad is frequently and continuously bent at the middle joint by means of single-side connection on the through hole in the piston, and the stress at the part is concentrated, so that the piston valve rubber pad is easy to break and separate after being used for a long time, the sealing performance of the water pump is poor, and the water pumping effect is seriously affected. Moreover, the connecting mode limits the opening angle of the piston valve rubber pad, so that water flow can only flow out from one side, the water yield is small, and the water demand of villagers cannot be met. Therefore, developing a hand-operated water pump lifting core for a water well with better performance, longer service life and higher water outlet efficiency becomes a problem to be solved urgently. Disclosure of utility model The utility model provides a hand-operated water pump hanging core for a water well, which solves the problems in the prior art. The hand-operated water pump lifting core for the water well comprises a piston, a lifting rod, a piston valve rubber gasket, an upper metal gasket, a lower metal gasket and a spring, wherein the lower end of the lifting rod is fixedly connected with the piston, a through hole is formed in the middle of the piston, a lower steel gasket with the inner diameter smaller than the diameter of the through hole is arranged at the bottom of the piston, a vertical rod concentric with the through hole is arranged in the middle of the lifting rod, the upper metal gasket, the piston valve rubber gasket and the lower metal gasket are sequentially sleeved on the vertical rod, the piston valve rubber gasket between the upper metal gasket and the lower metal gasket is clamped through a bolt assembly, the spring is sleeved on the vertical rod and is positioned above the upper metal gasket, and the outer diameter of the piston valve rubber gasket is smaller than the inner diameter of the lower end of the through hole and larger than the inner diameter of the lower steel gasket. Further improvement, the upper metal gasket is symmetrically provided with an inner hexagonal screw rod, the inner hexagonal screw rod sequentially penetrates through the upper metal gasket, the piston valve rubber gasket and the lower metal gasket, and the lower end of the inner hexagonal screw rod is in threaded connection with a third nut positioned at the lower end of the lower metal gasket. Further improved, the upper metal gasket and the lower metal gasket are made of stainless steel. Further improvement, the jib includes two at least groups of connecting rods, the inside upside of piston is equipped with the steel washer, the connecting rod passes steel washer, piston and lower steel washer in proper order, threaded connection has the nut one that is located steel washer upper end and the nut two that are located steel washer lower extreme on the connecting rod. Further improvement, screw threaded connection has the screw on the last steel packing ring, the screw passes in proper order and goes up behind steel packing ring, piston and the lower steel packing ring and passes through bottom nut and fix. Compared with the prior art, the hand-operated water pump hanging core for the water well has the beneficial effects that: the hand-operated water pump hanging core of the water well improves the structure of connecting the piston on one side of the original piston rubber pad, and the assembly consisting of the upper metal gasket, the piston valve rubber pad and the lower metal gasket can realize up-and-down movement on the vertical rod by utilizing the cooperation of the hole shaft under the action of downward elastic force of the spring, so that water can flow out from any direction, the water inlet and outlet area is obviously increased, and the water