CN201902300U

CN201902300U - Well killing head for water pump

Info

Publication number: CN201902300U
Application number: CN2010206704655U
Authority: CN
Inventors: 钟新军
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2011-07-20
Anticipated expiration: 2020-12-21

Abstract

The utility model belongs to the technical field of well killing heads, and particularly relates to a well killing head for a water pump. A well killing basket and a well killing skin are arranged at the lower end of a pull rod from bottom to top; the upper part of the pull rod extends out of a well killing cover plate after passing through the well killing cover plate and is connected with a well killing handle; a pull rod guide pillar is arranged at a central hole of the well killing cover plate; the well killing basket and the well killing skin are arranged in a well killing casing; the well killing cover plate is arranged on the upper end surface of the well killing casing; the external diameter of the well killing skin is matched with the internal diameter of the well killing casing; a water outlet communicated with an inner cavity of the well killing casing is formed at the upper part of one side of the well killing casing; a telescopic sealing sleeve with one end sleeved in an annular groove on the upper side of the well killing skin and the other end sleeved on the pull rod guide pillar of the well killing cover plate is sleeved on the pull rod between the well killing skin and the well killing cover plate; and the sealing sleeve of the well killing head is tightly sealed with the pull rod guide pillar of the well killing cover plate and the well killing skin so as to prevent the corrosion of the pull rod and the water discharge from a pull rod hole on the well killing cover plate to cause a motor to suffer from water ingress. The well killing head has long service life and is suitable for domestic water or rural irrigation and other occasions.

Description

A kind of water pump well killing head

Technical field:

The utility model belongs to the well killing head technical field, refers in particular to a kind of water pump well killing head that can be used for the facility that draws water of rural area crop irrigation and domestic water.

Background technique:

Manually well killing head can extrude ground for domestic water or the use of rural area crop irrigation with underground water or well water by moving up and down of kill-job bar.Because manually well killing head needs frequent operation pressure handle drive kill-job bar to move up and down, and uses relatively effort, efficient is not high, slowly is eliminated.At present, using what be widely used in rural area crop irrigation or domestic water the most is improvement to centrifugal pump, at the suction oral-lateral of centrifugal pump well killing head is installed, and this structure can reduce labor intensity greatly, makes the life better.The structure of present well killing head is that the bottom of kill-job bar is fixed with the kill-job hand basket, on the kill-job hand basket, the kill-job bar is outside equipped with the kill-job skin, the top of kill-job bar is arranged with the kill-job cover plate, the kill-job hand basket, the kill-job skin is arranged in the kill-job tube, the kill-job cover plate is arranged on the upper-end surface of kill-job tube, the kill-job bar that stretches out kill-job cover plate part is connected with pressure handle, between kill-job cover plate and kill-job bar, be provided with seal ring, to prevent that the water in the kill-job tube from overflowing from the gap between kill-job cover plate and the kill-job bar, the bottom of kill-job tube is connected with motor by pump head, the well killing head of this structure has the following disadvantages: since pressure handle press the continuous effluent that starts centrifugal pump up and down, the each startup all needs to press up and down pressure handle when centrifugal pump is worked, can under the effect of atmospheric pressure, underground water etc. be depressed into ground after being evacuated in the drinking-water pipe with centrifugal pump, friction law between kill-job bar and the kill-job cover plate and the kill-job bar is worn, and the pull bar that is arranged in the kill-job tube contacts with water for a long time, get rusty easily, cause the sealing between kill-job cover plate and the pull bar poor, the water capacity in the kill-job tube is easily emerged from the kill-job cover plate, even influence motor water inlet, produce leaky, thereby cause some security incidents, simultaneously, the working life of well killing head is also short.

Summary of the invention:

The purpose of this utility model provides a kind of good airproof performance, long service life, the water pump well killing head of safety.

The utility model is achieved in that

A kind of water pump well killing head, the lower end of pull bar is disposed with kill-job hand basket and kill-job skin from the bottom up, the kill-job cover plate is passed on the top of pull bar, and to stretch out the kill-job cover plate outer and be connected with pressure handle, the central hole of kill-job cover plate is provided with the pull bar guide pillar, the kill-job hand basket, the kill-job skin is arranged in the kill-job tube, the kill-job cover plate is arranged on the upper-end surface of kill-job tube, the external diameter of kill-job skin matches with the internal diameter of kill-job tube, upper lateral part at the kill-job tube is provided with the water outlet that is communicated with the kill-job tube inner chamber, be set with telescopic stuffing box gland on the pull bar between described kill-job skin and the kill-job cover plate, one end of stuffing box gland is set in the circular groove of kill-job skin upside, and the other end is set on the pull bar guide pillar of kill-job cover plate.

Above-mentioned scalable stuffing box gland is corrugated stuffing box gland.

The outstanding compared to existing technology advantage of the utility model is:

1, the rod outer sleeve that is arranged between kill-job skin and the kill-job cover plate of the utility model is provided with scalable stuffing box gland, the pull bar guide pillar of stuffing box gland and kill-job cover plate and kill-job skin tight seal, when pressure handle drive pull bar moves up and down, because stuffing box gland is telescopic, can avoid pull bar to contact with water, pull bar is difficult for getting rusty, simultaneously, when the centrifugal pump continuous effluent, water can not emerged from the tie rod hole on the kill-job cover plate, and influence the motor water inlet, and cause potential safety hazards such as electric leakage, improved the working life of well killing head;

2, the utility model is used in combination with centrifugal pump, is applicable to occasions such as domestic water or rural area irrigation.

Description of drawings:

Fig. 1 is a perspective view of the present utility model;

Fig. 2 is the mounting structure schematic representation of kill-job hand basket of the present utility model, kill-job skin, pull bar, kill-job cover plate and stuffing box gland;

Fig. 3 is the utility model user mode schematic perspective view;

Fig. 4 is the utility model user mode cross-sectional view.

Embodiment:

With specific embodiment the utility model is further described below, referring to Fig. 1-4:

A kind of water pump well killing head, the lower end of pull bar 10 is disposed with kill-job hand basket 20 and kill-job skin 30 from the bottom up, kill-job cover plate 40 is passed on the top of pull bar 10, and to stretch out kill-job cover plate 40 outer and be connected with pressure handle 60, the central hole of kill-job cover plate 40 is provided with pull bar guide pillar 401, kill-job hand basket 20, kill-job skin 30 is arranged in the kill-job tube 50, kill-job cover plate 40 is arranged on the upper-end surface of kill-job tube 50, the external diameter of kill-job skin 30 matches with the internal diameter of kill-job tube 50, the external diameter of kill-job hand basket 20 is less than the internal diameter of kill-job tube 50, and on kill-job hand basket 20, axially be provided with several through holes 201, upper lateral part at kill-job tube 50 is provided with the water outlet 501 that is communicated with kill-job tube 50 inner chambers, be set with telescopic stuffing box gland 70 on the pull bar 10 between described kill-job skin 30 and the kill-job cover plate 40, one end of stuffing box gland 70 is set in the annular groove 301 of kill-job skin 30 upsides, and the other end is set on the pull bar guide pillar 401 of kill-job cover plate 40.

Above-mentioned scalable stuffing box gland 70 is corrugated stuffing box gland.

Use of the present utility model:

The bottom of kill-job tube 50 of the present utility model and the water outlet of centrifugal pump pump head 80 are tightly connected, one side of pump head 80 is provided with intake pipe 801, before centrifugal pump is worked first, with pressure handle 60 past pressing down, make kill-job hand basket 20, kill-job skin 30 be in the top of kill-job tube inner chamber 502,, press pressure handle 60 then up and down to kill-job tube inner chamber 502 fills with water, air in the safety check emptying intake pipe 801 in being arranged on centrifugal pump draws till the water.Then under the effect of pressure handle 60 deadweights, make kill-job hand basket 20, kill-job skin 30 and scalable stuffing box gland 70 be close to kill-job cover plate 40, can make between kill-job cover plate 40 and the kill-job bar 10 and be in sealing state, water in the kill-job tube 50 can not overflow from the gap between kill-job cover plate 40 and the kill-job bar 10, kill-job bar 10 is difficult for getting rusty, make the motor water inlet to produce leaky, prolonged the working life of well killing head.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1. water pump well killing head, the lower end of pull bar is disposed with kill-job hand basket and kill-job skin from the bottom up, pass the kill-job cover plate stretches out outside the kill-job cover plate and with pressure handle and is connected on the top of pull bar, the central hole of kill-job cover plate is provided with the pull bar guide pillar, the kill-job hand basket, the kill-job skin is arranged in the kill-job tube, the kill-job cover plate is arranged on the upper-end surface of kill-job tube, the external diameter of kill-job skin matches with the internal diameter of kill-job tube, upper lateral part at the kill-job tube is provided with the water outlet that is communicated with the kill-job tube inner chamber, it is characterized in that: be set with telescopic stuffing box gland on the pull bar between described kill-job skin and the kill-job cover plate, one end of stuffing box gland is set in the circular groove of kill-job skin upside, and the other end is set on the pull bar guide pillar of kill-job cover plate.

2. a kind of water pump well killing head according to claim 1 is characterized in that: described scalable stuffing box gland is corrugated stuffing box gland.