CN201189428Y

CN201189428Y - Forward and reverse quick switching device

Info

Publication number: CN201189428Y
Application number: CNU2008200125929U
Authority: CN
Inventors: 李忠大; 李忠政
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-08
Filing date: 2008-05-08
Publication date: 2009-02-04
Anticipated expiration: 2018-05-08

Abstract

The utility model provides a device capable of realizing quick forward-reverse switching during operation, which can be widely applied to the fields of a bag type dust collector, a liquid medium filtering and cleaning system and the like. The device is characterized by comprising a front part and a back part; the front part is provided with two passages, while the back part is provided with a passage; the front part is totally provided with six air ports, wherein two air ports and another two air ports are oppositely arranged in the horizontal direction, and the rest two air ports are arranged in the vertical direction; a shaft is arranged between the front part and the back part of the device, and is provided with three plate valves; and the front part and the back part of the device are separated, and can respectively shut off the air ports. The device can completely omit a blower or a water pump with forward and reverse rotation, and make a draught fan in operation realize reversely blowing without stopping the draught fan through synchronous rotation of the three plate valves. A special reverse blowing system is not required, so the whole operation system is more simplified, the investment is saved, and the failure rate and workload for maintenance are reduced.

Description

Can realize operating forward and reverse quick switching device

Technical field:

The utility model relates to a kind of forward and reverse realization quick switching device, replaces the blower fan or the water pump of rotating function, but extensive use and sack cleaner or liquid medium filter fields such as purging system.

Background technology:

Traditional sack cleaner, at run duration, often take the mode of blowback to remove long-pending full dust on the cloth bag, this need possess high-pressure air source or more powerfully can realize that positive back blowing machine realizes, and run duration air-introduced machine and back blowing machine must frequent startings and stop.Just very high to the requirement of blower fan like this, the while also increases the cost and the operating cost of equipment, and maintenance is complicated.Do not need hair-dryer to change direction and the realization equipment device of realizing quick forward and reverse conversion that is in operation and yet there are no bibliographical information.In like manner, filter the water pump of also often using the rotating function in the field of cleaning, also need not change the water pump flow direction and can also realize that the device of forward and reverse conversion uses aborning at water or liquid medium.

Summary of the invention:

Goal of the invention: the utility model has overcome the shortcoming of prior art, and a kind of traffic direction that need not change hair-dryer or water pump is provided, and stable performance, maintenance convenient, be convenient to promote the use of a kind ofly realize operating forward and reverse quick switching device.

Technical scheme: the utility model is achieved through the following technical solutions:

A kind ofly realize operating forward and reverse quick switching device, it is characterized in that: this device is front and back two parts, and the front portion is divided into two passages, and the rear portion is divided into a passage; Forward part is provided with 6 gas ports altogether, and wherein two gas ports and two other gas ports are horizontal direction, are oppositely arranged, and remaining two gas port is the vertical direction setting; Be provided with axle between two parts before and after this device, axle is provided with 3 plate valves, with two parts before and after this device separately, and can turn-off gas port respectively.

3 plate valves that are provided with on the axle are linkage structure, and two plate valves wherein are same plane, vertical setting, two vertical settings of plate valve of another plate valve and this.

Advantage and effect: this device can omit above-mentioned two kinds of equipment fully, and it make operating air-introduced machine realize blowback, and air-introduced machine need not stop by the synchronous rotation of three plate valves.Need not ad hoc blowback system, the whole service system is more simplified, saved investment, reduced fault rate and maintenance and repair workload.

The application of this device has substituted traditional blowback system fully, by the medium of this device, can be air, water and other material.When medium was water or other liquid, blower fan promptly can substitute by the water pump.

Description of drawings:

Fig. 1 is 3 plate valve structural representations of the present utility model;

Fig. 2 is a primary structure schematic diagram of the present utility model;

The schematic diagram that Fig. 3 uses for the blowing of the utility model forward;

The schematic diagram that Fig. 4 oppositely dries and uses for the utility model.

The specific embodiment:

The primary structure of this device 6 as shown in Figure 2, device 6 be shaped as the cuboid passage, also can be cylindrical channel.Two parts before and after it is divided into, the centre of forward part is divided into the passage aisle of two same cross-sectional by a dividing plate, and the other end of cuboid passage is still merged into a major path.Forwardly on the passage of Fening, be provided with six gas ports, be respectively a, b, c, d, e, f, these six gas ports can be square, also can be circular.Wherein the direction of gas port a, b, e, f is for being horizontally disposed with, and gas port c, d are arranged on the roof of cuboid passage, are vertical direction.Install at this and to be provided with axle 1 between 6 front and back two parts, axle 1 is provided with 3 plate valve S1, S2, S3, as shown in Figure 1, with these device 6 front and back two parts separately, and can turn-off gas port c, d, f respectively.Plate valve S1, S2, S3 are controlled the conversion that just can realize between forward and reverse respectively, if interlock, better effects if can realize the conversion between quick forward and reverse.

Air-introduced machine 3 is connected gas port a, b place, is connected with pipeline between its entrance and exit and gas port a, the b, and the gateway can arbitrarily be connected with gas port a, b, and promptly inlet connects gas port a or outlet and connects gas port a and all can.Operation principle of the present utility model is with the 5 connection gas port a that enter the mouth, and it is that example is narrated that outlet 4 connects gas port b.

As shown in Figure 3, when three plate valves were in position as Fig. 3, promptly plate valve S1 was the level of state gas port c is sealed, and S3 seals gas port f in vertical state, and gas port e and gas port d are in opening.After air-introduced machine starts, after crossing gas port e → a → air-introduced machine inlet 5 → air-introduced machine outlet 4 → b → d, the air communication of coming out from the cuboid passage discharges.

When 90 ° of axial anticlockwises that is connecting three plate valves, three plate valves promptly are in diverse location as shown in Figure 4.At this moment, plate valve S1 in vertical state, e seals with gas port, S2 is the level of state gas port d is sealed, gas port c and f are in opening.Air-introduced machine keeps running status always, and this moment, extraneous air passed through gas port c → a → air-introduced machine inlet → air-introduced machine outlet → b → f → cuboid passage other end, and blowback is gone back again.

Equally, when axle again during 90 ° of reverse rotations, three plate valves return to the state of Fig. 3 again.The position of three plate valves changes in any case synchronously, and the operation of air-introduced machine all need not stop.

When the medium of needs conveying was water or other liquid, this device also can use, and what just connect is water pump, has replaced air-introduced machine.

This device can be directly and the supporting use of sack cleaner, and its application has replaced the blowback system of sack cleaner fully, has both saved investment, has reduced operation and maintenance cost again, and economic benefit is very considerable.

Claims

1, a kind ofly realize operating forward and reverse quick switching device, it is characterized in that: this device (6) is front and back two parts, and the front portion is divided into two passages, and the rear portion is divided into a passage; Forward part is provided with 6 gas ports (a, b, c, d, e, f) altogether, and wherein two gas port (a) and (b) and other two gas ports (e), (f) are horizontal direction, are oppositely arranged, and remaining two gas port (c), (d) are the vertical direction setting; Be provided with axle (1) before and after this device (6) between two parts, axle (1) is provided with 3 plate valves (S1, S2, S3), with two parts before and after this device (6) separately, and can turn-off gas port (c, d, f) respectively.

2, according to claim 1ly realize operating forward and reverse quick switching device, it is characterized in that: it is linkage structure that axle (1) is gone up 3 plate valves (S1, S2, S3) that are provided with, two plate valves (S2, S3) wherein are same plane, vertical setting, the vertical setting of two plate valves of another plate valve (S1) and this (S2, S3).