CN217716573U

CN217716573U - Liquid level detection mechanism for drum-type filter screen

Info

Publication number: CN217716573U
Application number: CN202222042891.XU
Authority: CN
Inventors: 邹宇; 孙靖华
Original assignee: Sunfilter Produt Shanghai Co ltd
Current assignee: Sunfilter Produt Shanghai Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-11-01
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a liquid level detection mechanism for drum-type filter screen, including filter screen basket, fixed axle and liquid level switch, be equipped with the feed liquor pipe that corresponds with the filter screen basket on the fixed axle, be equipped with the passageway in the fixed axle, sliding insert in the passageway is equipped with the switch lead wire, the one end of switch lead wire links to each other with liquid level switch, the extension has been cup jointed to the one end that the switch lead wire is close to liquid level switch, extension and opening inner wall threaded connection, the one end that liquid level switch was kept away from to the switch lead wire slides and has cup jointed the protecting tube, fixedly connected with and the chucking mechanism that the protecting tube corresponds on the outer wall of fixed axle. The utility model solves the problem that how to test the liquid level inside the drum filter with larger size in the rolling basket during the operation process in the prior art; thereby further perfecting the automatic control system of the drum-type filter.

Description

Liquid level detection mechanism for drum-type filter screen

Technical Field

The utility model relates to a liquid level detection technical field especially relates to a liquid level detection mechanism for drum-type filter screen.

Background

The filter equipment of roller filter as circulating water is often adopted as in cutting grain system under water to prior art, roller filter includes the wheel carrier structure, the cylinder, spray assembly, guide plate and powder collection basket, the cylinder passes through transmission by the motor and drives, the slope of guide plate sets up, the low side and the powder collection basket of guide plate correspond, during the use, the powder of taking water falls into the powder collection basket from the guide plate, after the powder is collected to fill, open the filter lid, take out the collection basket, after having cleared up the powder, will collect the basket and put back the normal position again, begin the collection again.

However, in the prior art, liquid level detection is mainly carried out in several ways, namely, the height of the liquid level is observed manually through a window of a filter;

secondly, a floating ball liquid level switch is directly placed at the fixed end, but the liquid level height is difficult to flexibly adjust when the fixed end is positioned at the center of the net basket; and the floating ball is easy to be blocked,

thirdly, a high-precision liquid level sensing device (such as a capacitance type liquid level sensor) is arranged at the fixed end, but a secondary instrument is needed, the cost is high, and the operation parameters are required to be continuously adjusted due to different filter media; and for complex conditions such as foam, the operation is difficult to be stable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that how to test the height of the liquid level inside the large-size drum filter in the rolling basket in the operation process of the drum filter in the prior art, and providing a liquid level detection mechanism for a drum filter.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a liquid level detection mechanism for drum-type filter screen, includes filter screen basket, fixed axle and liquid level switch, be equipped with the feed liquor pipe that corresponds with the filter screen basket on the fixed axle, be equipped with the passageway in the fixed axle, slide in the passageway and insert and be equipped with the switch lead wire, the one end of switch lead wire links to each other with liquid level switch, the extension pipe has been cup jointed to the one end that the switch lead wire is close to liquid level switch, extension pipe and opening inner wall threaded connection, the one end that liquid level switch was kept away from to the switch lead wire slides and has cup jointed the protecting tube, fixedly connected with and the chucking mechanism that the protecting tube corresponds on the outer wall of fixed axle.

Preferably, a sealing ring is fixedly sleeved on the liquid level switch, and one side of the sealing ring is abutted to the pipe orifice of the extension pipe.

Preferably, the extension pipe is L-shaped.

Preferably, the liquid level switch is a tuning fork liquid level switch.

Preferably, the clamping mechanism comprises a clamping block and a clamping rod, the clamping rod is slidably inserted into the clamping block, a plurality of clamping grooves corresponding to the clamping rod are formed in the outer wall of the protection pipe, and a clamping sleeve is fixedly sleeved at one end, close to the protection pipe, of the clamping rod.

Preferably, the clamping rod is sleeved with a spring, and two ends of the spring are fixedly connected with the clamping sleeve and the clamping block respectively.

Has the beneficial effects that:

1. the utility model solves the problem that how to test the liquid level height inside the drum filter with larger size in the rolling basket during the operation process in the prior art; thereby further perfecting the automatic control system of the drum-type filter;

2. the utility model can detect the liquid level in the filter screen of the large-scale drum filter screen; the required liquid level height can be flexibly adjusted according to the actual situation; and the influence of the medium foam on the liquid level control can be reduced by adjusting the sensitivity of the tuning fork liquid level switch.

Drawings

FIG. 1 is a schematic structural view of a liquid level detecting mechanism for a drum filter screen according to the present invention;

fig. 2 is the utility model provides a side-looking structural schematic diagram of a liquid level detection mechanism for drum-type filter screen.

In the figure: 1 filter screen basket, 2 fixed axles, 3 liquid level switches, 4 feed liquor pipes, 5 switch lead wires, 6 extension pipes, 7 protective pipes, 8 sealing rings, 9 clamping blocks, 10 clamping rods, 11 springs and 12 clamping sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a liquid level detection mechanism for a drum-type filter screen comprises a filter screen basket 1, a fixed shaft 2 and a liquid level switch 3, wherein a liquid inlet pipe 4 corresponding to the filter screen basket 1 is arranged on the fixed shaft 2, a channel is arranged in the fixed shaft 2, a switch lead 5 is slidably inserted in the channel, and one end of the switch lead 5 is connected with the liquid level switch 3 by transmitting a liquid level detection signal;

in the embodiment, the liquid level switch 3 is a tuning fork liquid level switch and is used for monitoring the liquid level in the filter screen basket 1, one end of the switch lead 5, which is close to the liquid level switch 3, is sleeved with the extension pipe 6 and is used for supporting and protecting the liquid level switch 3, the liquid level switch 3 is fixedly sleeved with the sealing ring 8, one side of the sealing ring 8 is abutted against the pipe orifice of the extension pipe 6, and the extension pipe 6 is L-shaped and conveniently extends into the filter screen basket 1;

in the embodiment, the extension tube 6 is in threaded connection with the inner wall of the through hole, the protective tube 7 is sleeved at one end, away from the liquid level switch 3, of the switch lead 5 in a sliding mode, a certain protection effect is achieved on the switch lead 5, the clamping mechanism corresponding to the protective tube 7 is fixedly connected to the outer wall of the fixed shaft 2, and the protective tube 7 is convenient to fix and detach;

in this embodiment, the clamping mechanism includes a clamping block 9 and a clamping rod 10, the clamping rod 10 is slidably inserted into the clamping block 9, a plurality of clamping grooves corresponding to the clamping rod 10 are formed in the outer wall of the protection tube 7, a clamping sleeve 12 is fixedly sleeved at one end of the clamping rod 10 close to the protection tube 7 to prevent the clamping rod 10 from falling off from the clamping block 9, a spring 11 is sleeved on the clamping rod 10, and two ends of the spring 11 are respectively fixedly connected with the clamping sleeve 12 and the clamping block 9 to elastically support the clamping rod 9 to a certain extent.

In the embodiment, the liquid level height in the filter screen of the large-sized roller filter screen can be detected; the required liquid level height can be flexibly adjusted according to the actual situation; and the influence of the medium foam on the liquid level control can be reduced by adjusting the sensitivity of the tuning fork liquid level switch.

In the embodiment, the problem that how to test the height of the liquid level in the large-size drum-type filter in a rolling basket in the operation process in the prior art is solved; thereby further perfecting the automatic control system of the drum-type filter.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a drum-type is liquid level detection mechanism for filter screen, includes filter basket (1), fixed axle (2) and liquid level switch (3), its characterized in that: be equipped with feed liquor pipe (4) that correspond with filter screen basket (1) on fixed axle (2), be equipped with the passageway in fixed axle (2), it is equipped with switch lead wire (5) to slide to insert in the passageway, the one end of switch lead wire (5) links to each other with liquid level switch (3), extension pipe (6) have been cup jointed to the one end that switch lead wire (5) are close to liquid level switch (3), extension pipe (6) and opening inner wall threaded connection, the one end that liquid level switch (3) were kept away from in switch lead wire (5) slides and has cup jointed protecting tube (7), fixedly connected with and the chucking mechanism that protecting tube (7) correspond on the outer wall of fixed axle (2).

2. The liquid level detection mechanism for the roller type filter screen as claimed in claim 1, wherein: the liquid level switch (3) is fixedly sleeved with a sealing ring (8), and one side of the sealing ring (8) is abutted to the pipe orifice of the extension pipe (6).

3. The liquid level detection mechanism for the roller type filter screen as claimed in claim 1, wherein: the extension pipe (6) is L-shaped.

4. The liquid level detection mechanism for the roller type filter screen as claimed in claim 1, wherein: the liquid level switch (3) is a tuning fork liquid level switch.

5. The liquid level detection mechanism for the roller type filter screen as claimed in claim 1, wherein: the clamping mechanism comprises a clamping block (9) and a clamping rod (10), the clamping rod (10) is slidably inserted into the clamping block (9), a plurality of clamping grooves corresponding to the clamping rod (10) are formed in the outer wall of the protective pipe (7), and a clamping sleeve (12) is fixedly sleeved at one end, close to the protective pipe (7), of the clamping rod (10).

6. The liquid level detection mechanism for the roller type filter screen as claimed in claim 5, wherein: the clamping rod (10) is sleeved with a spring (11), and two ends of the spring (11) are fixedly connected with the clamping sleeve (12) and the clamping block (9) respectively.