CN213985301U

CN213985301U - Anti-blocking mechanism of magnetic turning plate liquid level meter

Info

Publication number: CN213985301U
Application number: CN202120134593.6U
Authority: CN
Inventors: 武骥
Original assignee: Nanjing Ruiji Automation Co ltd
Current assignee: Nanjing Ruiji Automation Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-08-17
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses an anti-blocking mechanism of a magnetic turning plate liquid level meter, which relates to the field of the liquid level meter and comprises two impurity removing devices, a first electromagnetic reversing valve and a second electromagnetic reversing valve, wherein the two impurity removing devices realize the alternative work by switching the first electromagnetic reversing valve and the second electromagnetic reversing valve, the impurity removing devices comprise a filter box, a slide bar and a top plate, a filter screen is arranged in the filter box, two sides of the filter screen are provided with brushes, the brushes are fixedly connected with the bottom ends of the two slide bars, 4 slide bars are fixedly connected with the top plate, a reset spring is sleeved on the slide bar, the reset spring is positioned between the filter box and the top plate, the top plate is rotatably connected with a roller, the roller is tangent with a cam, the cam is connected with an output shaft of a motor, the two impurity removing devices are matched with the electromagnetic reversing valves to alternately perform the filtration and impurity removal work, the anti-blocking mechanism is not influenced by cleaning the filter screen, and the continuous liquid level detection work is ensured, the water source is additionally arranged for washing, so that the cleaning efficiency is improved, and the maintenance is convenient.

Description

Anti-blocking mechanism of magnetic turning plate liquid level meter

Technical Field

The utility model relates to a level gauge field, concretely relates to magnetism turns over stifled mechanism of preventing of board level gauge.

Background

The magnetic turning plate liquid level meter is used for detecting the liquid level of media of various devices such as towers, tanks, grooves, spherical containers, boilers and the like, generally, the magnetic turning plate liquid level meter measures the height of the liquid level by utilizing the principle of a communicating vessel, and when some impurities exist in liquid, the impurities are attached to the inner wall of the liquid level meter and sometimes block the magnetic floater, so that the magnetic floater cannot ascend and descend along with the height of the liquid level to influence the normal use of the liquid level meter.

Set up the filter screen and carry out impurity filtering between the container that board level gauge and be connected is turned over in magnetism, can reduce the inside that impurity enters into the level gauge, reduce and block up, but the filter screen of having of a specified duration also can adhere to impurity, so need clear up the filter screen, current clearance need unpack apart just can clear up, the process is more troublesome, and the level gauge will halt work when just clearing up, influences the continuity of liquid level detection work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a magnetism turns over stifled mechanism of preventing of board level gauge to solve the problem that mentions in the above-mentioned background art.

The utility model provides a magnetism turns over stifled mechanism of preventing of board level gauge, includes edulcoration device, electromagnetic reversing valve one and electromagnetic reversing valve two, the edulcoration device is equipped with two, and two edulcoration devices switch through electromagnetic reversing valve one and electromagnetic reversing valve two and realize alternative work, the edulcoration device includes filter cartridge, slide bar and roof, be equipped with the slot in the filter cartridge, it has the filter screen to peg graft in the slot, the both sides of filter screen are equipped with the brush, brush fixed connection is in the bottom of two slide bars, 4 slide bars and roof fixed connection, the cover is equipped with reset spring on the slide bar, reset spring is located between filter cartridge and the roof, it is connected with the gyro wheel to rotate on the roof, the gyro wheel is tangent with the cam, the output shaft of cam and motor, the filter cartridge both sides are equipped with export and entry.

Preferably, the inlet of one of the filter boxes is communicated with the end A of the first electromagnetic directional valve, the outlet of the filter box is communicated with the end C of the second electromagnetic directional valve, the inlet of the other filter box is communicated with the end B of the first electromagnetic directional valve, the outlet of the other filter box is communicated with the end D of the second electromagnetic directional valve, the end P of the first electromagnetic directional valve is communicated with a container for containing liquid, and the end T of the second electromagnetic directional valve is communicated with the inlet of the magnetic turning plate liquid level meter.

Preferably, the bottom of the filter box is fixedly connected with a bottom cover through a bolt, and a drain valve is arranged on the bottom cover.

Preferably, the outlets of the two filter boxes are communicated with the water outlet of the cleaning water pump through two water source valves respectively, and the water inlet of the cleaning water pump is communicated with a water source.

The utility model has the advantages that: set up the filter screen between magnetism turns over board level gauge and the container of being connected and carry out impurity filtering, inside effectively reducing impurity entering level gauge, cam drive brush carries out regularly clearance to the filter screen, can effectively reduce impurity and pile up on the filter screen, and utilizes two edulcoration devices cooperation solenoid directional valves to filter the work of edulcoration in turn, does not receive the influence of clearance filter screen, has guaranteed that liquid level detection work can go on in succession. The water source is additionally arranged for scouring, the cleaning efficiency is improved, the filter screen is replaced only by detaching the bottom cover, and the maintenance is convenient and fast.

Drawings

FIG. 1 is a schematic view of a structure of a trash removal device.

Fig. 2 is a schematic diagram of a fluid path system.

Fig. 3 is a schematic structural view of the filter cassette.

In the figure: the device comprises an impurity removing device 1, a filter box 11, a slide rod 12, a top plate 13, an inserting groove 111, a filter screen 14, a brush 15, a return spring 16, a roller 17, a cam 18, a bottom cover 19, a first electromagnetic reversing valve 2, a second electromagnetic reversing valve 3, a blow-down valve 4, a water source valve 5 and a cleaning water pump 6.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 3, an anti-blocking mechanism of a magnetic flap level gauge comprises two impurity removing devices 1, a first electromagnetic directional valve 2 and a second electromagnetic directional valve 3, wherein the two impurity removing devices 1 are switched by the first electromagnetic directional valve 2 and the second electromagnetic directional valve 3 to realize alternate work, each impurity removing device 1 comprises a filter box 11, slide bars 12 and a top plate 13, a slot 111 is arranged in each filter box 11, a filter screen 14 is inserted in each slot 111, brushes 15 are arranged on two sides of each filter screen 14, each brush 15 is fixedly connected to the bottom ends of the corresponding two

slide bar

12, 4 slide bars 12 are fixedly connected with the top plate 13, a return spring 16 is sleeved on each slide bar 12, each return spring 16 is located between the corresponding filter box 11 and the corresponding top plate 13, a roller 17 is rotatably connected to the corresponding top plate 13, each roller 17 is tangent to a cam 18, and the cam 18 is connected with an output shaft of a motor, an outlet and an inlet are arranged on two sides of the filter box 11.

In this embodiment, an inlet of one of the filter cassettes 11 is communicated with an end a of the first electromagnetic directional valve 2, an outlet of the one filter cassette 11 is communicated with an end C of the second electromagnetic directional valve 3, an inlet of the other filter cassette 11 is communicated with an end B of the first electromagnetic directional valve 2, an outlet of the other filter cassette 11 is communicated with an end D of the second electromagnetic directional valve 3, an end P of the first electromagnetic directional valve 2 is communicated with a container for containing liquid, and an end T of the second electromagnetic directional valve 3 is communicated with an inlet of the magnetic flip plate liquid level meter. The two electromagnetic directional valves realize the automatic switching of the states of the two impurity removing devices.

In this embodiment, the bottom of the filter cartridge 11 is fixedly connected with a bottom cover 19 through a bolt, and the bottom cover is provided with a blowoff valve 4. The blow-off valve 4 is used for discharging the cleaned impurities.

In this embodiment, the outlets of the two filter cartridges 11 are also respectively communicated with the water outlet of the cleaning water pump 6 through two water source valves 5, and the water inlet of the cleaning water pump 6 is communicated with the water source. The cleaning water pump 6 provides high pressure water to assist in cleaning the filter screen 14.

The working process and the principle thereof are as follows:

the main liquid path has two, one is: P-A-filter cartridge-C-T, the other is: and when the two electromagnetic reversing valves are in the neutral positions, the two filter boxes are in a closed state.

When the filter screen 14 needs to be cleaned, the first electromagnetic directional valve 2 and the second electromagnetic wire-changing valve 3 are matched to switch the liquid path, the inlet and the outlet of the filter box 11 which is originally in the filtering state are blocked, the inlet and the outlet of the other filter box 11 are conducted, the filter box 11 which is not filtered originally starts to perform filtering work, and the impurity removing device 1 which stops the filtering work starts to perform cleaning work.

The motor and the washing water pump 6 are started (the motor is not shown in fig. 1), the blow-down valve 4 and the corresponding water source valve 5 are opened, and water from the water source is injected into the filter box 11 from the outlet of the filter box 11 through the washing water pump 6. The motor drives the cam 18 to rotate, the cam 18 is in tangential contact with the roller 17, and the roller 17 is rotatably connected to the top plate 13, and the four sliding rods 12 are fixed together by the top plate 13, so that the sliding rods 12 move downwards under the rotation of the cam 18, and the pressure is released by the return spring 16 during the return stroke, thereby realizing the up-and-down reciprocating motion of the sliding rods 12. The slide bar 12 drives the brush 15 to move up and down to clean the filter screen 14, high-pressure water conveyed by the cleaning water pump 6 carries out auxiliary cleaning work on the filter screen 14, and impurities cleaned are discharged through the blow-down valve 4.

After cleaning, the blowoff valve 4, the water source valve 5, the motor and the cleaning water pump 6 are closed, and the impurity removing device 1 is in a standby state at the moment to wait for the next alternate shift. The cleaning work is that a cleaning cycle is set by the controller to automatically clean without manual participation, and the cleaning is convenient and the anti-blocking efficiency is high.

When the filter screen 14 needs to be replaced, the filter screen 14 can be drawn out from the insertion groove 111 of the filter cartridge 11 and replaced by only detaching the bottom cover.

Based on the above: two filter screens 14 work in turn, and normal conditions one is in reserve, and one is in the filtration state, and during the turn, one is reserve turns into the filtration state, and what originally filtered the state of turning into clearance filter screen 14 can realize like this, need not to suspend the detection achievement of level gauge, just can easily realize that the clearance is prevented stifled, guarantees that the work of detecting the liquid level goes on in succession.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. The utility model provides a stifled mechanism of preventing of board level gauge is turned over to magnetism, its characterized in that, includes edulcoration device (1), electromagnetic directional valve (2) and electromagnetic directional valve two (3), edulcoration device (1) is equipped with two, and two edulcoration devices (1) realize alternate work through electromagnetic directional valve (2) and electromagnetic directional valve two (3) switch, edulcoration device (1) includes filter box (11), slide bar (12) and roof (13), be equipped with slot (111) in filter box (11), it has filter screen (14) to peg graft in slot (111), the both sides of filter screen (14) are equipped with brush (15), brush (15) fixed connection is in the bottom of two slide bars (12), 4 slide bars (12) and roof (13) fixed connection, the cover is equipped with reset spring (16) on slide bar (12), reset spring (16) are located between filter box (11) and roof (13), the rotary filter is characterized in that a roller (17) is rotatably connected to the top plate (13), the roller (17) is tangent to a cam (18), the cam (18) is connected with an output shaft of a motor, and outlets and inlets are formed in two sides of the filter box (11).

2. The anti-blocking mechanism of the magnetic turn-over plate liquid level meter is characterized in that an inlet of one filter box (11) is communicated with an end A of a first electromagnetic directional valve (2), an outlet of the filter box is communicated with an end C of a second electromagnetic directional valve (3), an inlet of the other filter box (11) is communicated with an end B of the first electromagnetic directional valve (2), an outlet of the other filter box is communicated with an end D of the second electromagnetic directional valve (3), an end P of the first electromagnetic directional valve (2) is communicated with a container for containing liquid, and an end T of the second electromagnetic directional valve (3) is communicated with an inlet of the magnetic turn-over plate liquid level meter.

3. The anti-blocking mechanism of the magnetic turn-over plate liquid level meter is characterized in that a bottom cover (19) is fixedly connected to the bottom of the filter box (11) through a bolt, and a drain valve (4) is arranged on the bottom cover.

4. The anti-blocking mechanism of the magnetic turn-over plate liquid level meter is characterized in that outlets of the two filter boxes (11) are also communicated with a water outlet of a cleaning water pump (6) through two water source valves (5), and a water inlet of the cleaning water pump (6) is communicated with a water source.