CN101761492B

CN101761492B - Two-door pump valve

Info

Publication number: CN101761492B
Application number: CN2010101252213A
Authority: CN
Inventors: 潘正平
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-16
Filing date: 2010-03-16
Publication date: 2012-03-07
Anticipated expiration: 2030-03-16
Also published as: CN101761492A

Abstract

The invention discloses a two-door pump valve, which comprises a valve body; the valve body includes valve plates and a valve port; the valve body includes a valve body outlet pipe, a valve body inlet pipe and a box body installed between the valve body outlet pipe and the valve body inlet pipe; the valve plates are two flat gate plates oppositely installed in the box body; the flat gate plates move to open and close in the box body by a pushing and pulling device; and the valve port is formed by pipe mouths of the valve body outlet pipe and the valve body inlet pipe connected with the box body. The invention abandons the traditional dogma of sealed design for the pump valve, applies a non-sealed design and has the advantages of a simple structure, few water head loss, stabilization, reliability, safety and energy saving, low cost, and easy automation operation, and is suitable for industrial, agricultural and domestic service pumps.

Description

Two-door pump valve

Technical field

The present invention relates to a kind of pump valve, especially a kind of two-door pump valve.

Background technique

When water pump directly opens pump or termination of pumping and since with the supporting motor of water pump be squirrel-cage motor mostly, the characteristics of this motor are that detent torque is little; Inrush current is big, thereby requires the starting mode of pump load lower, and according to the performance characteristics of centrifugal pump, the load during its zero delivery is minimum; So the gate valve that must close on the outlet pipe is restarted, promptly close valve and start, so such pump valve all adopts traditional sealable valve, this has become a kind of doctrine of design pump valve; And traditional sealable valve, its complex structure, cost is high, and operating to take time and effort is not easy to automation; Additional other device of the palpus that has and power are realized automatically, and amount of maintenance is big, does not calculate very much.Rise-fall type fluid-valves such as the diaphragm of employing, piston are also arranged at present, and this valve is convenient to automatic control, but its loss of head is big, and energy consumption is big.

Yet in reality, be not that a point load all can not drive during with the supporting electric motor starting of water pump, can satisfy the startup requirement that has water pump now as long as pump valve can reduce most flow.

Summary of the invention

The objective of the invention is to break through that traditional doctrine provides that a kind of completely newly unsealed, valve port valve plate need not that special processing, loss of head are little, reliable and stable, energy-saving safe, cheap, the two-door pump valve of being convenient to automation mechanized operation.

The object of the invention is achieved through following technical proposals: a kind of two-door pump valve; Comprise valve body; Said valve body comprises valve plate and valve port; Said valve body comprise valve body outlet pipe, valve inleting water pipe and be installed in the valve body outlet pipe and the valve inleting water pipe between casing; Said valve plate by be installed in the said casing, two relative flat flashboards constitute, said flat flashboard is implemented in the mobile switching in the said casing through push-and-pull device, said valve body outlet pipe constitutes said valve port with the mouth of pipe that said valve inleting water pipe is connected with casing.

Among the present invention; Said push-and-pull device comprises the bowl type lid that is connected with box sealing through passage, and said bowl type covers by first bowl of type lid and second bowl of type lid and constitutes, and has clamped cup packing connection between said first bowl of type lid and second bowl of type lid; Said second bowl of type covers and is provided with the spring chamber; Said leather cup inboard is provided with top board, and a side of said top board is connected with said flat flashboard through connecting rod, and opposite side is connected with stage clip in being fixed on said spring chamber; Said spring chamber is communicated with reflow pipe, and the end of said reflow pipe is installed on the backflow meter valve that is connected with suction sleeve.

Adopting said structure, during owing to starting mode of pump, is not that a point load all can not drive, and therefore supporting with it pump valve does not need airtight design; As long as pump valve can reduce the startup requirement that most flow can satisfy existing water pump, therefore adopt the present invention of said structure, for non-airtight design, simple in structure; The valve port valve plate need not special processing, cuts out flow and can reach more than 95%, can satisfy the startup requirement of existing water pump fully, and is lower than traditional water valve cost; Particularly loss of head is little, almost can ignore, and utilizes to form this transfer process of press water after the suction sleeve termination of pumping and realize automatic operation; Simple and reliable, maintenance rate is low, has reduced cost; Said push-and-pull device uses leather cup to have the advantage simple and reliable, cheap, that maintenance rate is low.

In sum; The present invention has abandoned the doctrine that traditional pump valve needs airtight design; Adopt non-airtight design, have simple in structure, loss of head is little, reliable and stable, energy-saving safe, cheap, be convenient to advantages such as automation mechanized operation, be suitable for industry, agricultural and domestic service pump.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is the sectional view of backflow meter valve of the present invention.

Fig. 4 is a connection schematic representation of the present invention.

In the accompanying drawing 1 to 4: 1-bowl-shape cover, 2-passage, 3-valve body outlet pipe, 4-valve inleting water pipe, 5-the-bowl-shape cover, 6-water pump, 7-backflow meter valve, 8-suction sleeve, 9-stage clip, 10-second bowl-shape cover, 11-reflow pipe, 12-leather cup, the flat flashboard of 13-, 14-valve port, 15-pond, 16-Slow Close foot valve, 17-two-door pump valve, 18-spring chamber, 19-top board, 20-backflow meter valve valve port, the little groove of 21-, 22-connecting rod, 23-backflow meter valve water intake, 24-casing.

Embodiment

Below in conjunction with accompanying drawing, specify the embodiment of two-door pump valve.

Like Fig. 1,2,3, shown in 4, a kind of two-door pump valve comprises valve body; Said valve body comprises valve plate and valve port 14, said valve body comprise valve body outlet pipe 3, valve inleting water pipe 4 and be installed in valve body outlet pipe 3 and valve inleting water pipe 4 between casing 24, said valve plate constitutes by being installed in two relative in the said casing 24 flat flashboards 13; Said valve body outlet pipe 3 constitutes said valve port with the mouth of pipe that said valve inleting water pipe 4 is connected with casing 24, and every flat flashboard 13 overlaps independently push-and-pull device drive switching through one, and said push-and-pull device comprises the bowl type lid that is tightly connected through passage and casing 24; Said bowl type lid is made up of 5 and second bowls of type lids 10 of first bowl of type lid, has clamped a leather cup 12 between 5 and second bowls of type lids 10 of said first bowl of type lid and has been tightly connected, and said second bowl of type lid 10 is provided with spring chamber 18; Said leather cup 12 inboards are provided with top board 19; One side of said top board 19 is connected with said flat flashboard 13 through connecting rod, and opposite side is connected with stage clip 9 in being fixed on said spring chamber 18, and said spring chamber 18 is communicated with reflow pipe 11; Said stage clip 9 roof pressures are on top board 19; Play the effect that makes the leather cup return, the end of said reflow pipe 11 is installed on the backflow meter valve 7 that is connected with suction sleeve 8, and said backflow meter valve 7 adopts a kind of meter valve valve port 20 upper surfaces that reflux to be provided with the backflow meter valve 7 of little groove; When the closing volume meter valve valve port 20 of backflow meter valve valve plate whereabouts; Little groove 21 forms an aperture, the water of limiting the quantity of, when backflow meter valve valve plate backed down by recirculation water leave backflow meter valve valve port 20 after; Little groove 21 opens wide; To be washed away immediately if any the incrustation foreign material in the little groove 21, prevented the obstruction of little groove 21, avoided the Traditional use aperture to limit the quantity of and be prone to disadvantage by the obstruction of incrustation foreign material.

When water pump was opened, the press water in the casing 24 was in passage gets into first bowl of type lid 5, and promotion leather cup 12 covers 10 directions to second bowl of type and moves; Leather cup 12 promotes top board 19, and passive top board 19 drives flat flashboard 13 through connecting rod and opens, stage clip 9 compressions simultaneously; The press waters that form in second bowl of type lid 10 get into backflow meter valves 7 from reflow pipe 11, and backflow meter valve 7 valve plates are closed, and make little groove 21 trace of the upper surface that press water can only be through backflow meter valve valve port 20 pass through; Sucked by suction sleeve 8 again, cause flat flashboard 13 slowly to be opened thus, make motor slowly increase load; Can not produce the overload phenomenon, eliminate the formation of opening the pump water hammer again.

After the water pump termination of pumping, the water in the lifting pipe refluxes, through pump back-pressure to suction sleeve 8; Slow Close foot valve 16 automatic Slow Closes, at this moment the suction sleeve 8 of Slow Close foot valve 16 fronts converts pressure tube again to, and its press water gets into from reflow pipe 11 conversely; Back down the valve plate of backflow meter valve 7, get into again in the bowl type lid, make the pressure balance of leather cup two sides; At this moment leather cup 12 is got back to original position under the promotion of stage clip 9, and flat flashboard 13 close port are ready for open pump next time.

The push-and-pull form of said push-and-pull device also can adopt piston or screw mandrel to carry out push-and-pull.

Claims

1. two-door pump valve; Comprise valve body; Said valve body comprises valve plate and valve port (14); It is characterized in that: said valve body comprise valve body outlet pipe (3), valve inleting water pipe (4) and be installed in valve body outlet pipe (3) and valve inleting water pipe (4) between casing (24); Said valve plate constitutes by being installed in interior, the relative two flat flashboards (13) of said casing (24), and said flat flashboard (13) is implemented in the mobile switching in the said casing (24) through push-and-pull device, and said valve body outlet pipe (3) constitutes said valve port (14) with the mouth of pipe that said valve inleting water pipe (4) is connected with casing (24).

2. two-door pump valve according to claim 1; It is characterized in that: said push-and-pull device comprises the bowl type lid (1) that is tightly connected through passage (2) and casing (24); Said bowl type lid (1) covers (5) by first bowl of type and second bowl of type lid (10) constitutes; Clamped a leather cup (12) between said first bowl of type lid (5) and the second bowl of type lid (10) and be tightly connected, said second bowl of type lid (10) is provided with spring chamber (18), and said leather cup (12) inboard is provided with top board (19); One side of said top board (19) is connected with said flat flashboard (13) through connecting rod (22); Opposite side is connected with stage clip (9) in being fixed on said spring chamber (18), and said spring chamber (18) is communicated with reflow pipe (11), and the end of said reflow pipe (11) is installed on the backflow meter valve (7) that is connected with suction sleeve (8).