CN209909242U

CN209909242U - Can dismantle controllable formula check valve of filter screen

Info

Publication number: CN209909242U
Application number: CN201920442215.7U
Authority: CN
Inventors: 王莹; 曾伟; 胡琴荣
Original assignee: JIANYANG ZHONGYUAN LOW TEMPERATURE EQUIPMENT KIT Co Ltd
Current assignee: JIANYANG ZHONGYUAN LOW TEMPERATURE EQUIPMENT KIT Co Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-01-07
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses a can dismantle controllable formula check valve of filter screen, which comprises a valve body, be equipped with the valve pocket on the valve body, equal fixed mounting has the fixing base on the top inner wall of valve pocket and the bottom inner wall, and clamped same filter screen between two fixing bases, filter screen and valve pocket looks adaptation, one side fixed mounting that the filter screen is close to the fixing base has two card axles that the symmetry set up, the fixing base is close to one side of filter screen and sets up the draw-in groove with card axle looks adaptation, and two card axles keep away from the one end of filter screen and extend to respectively in two draw-in grooves, the constant head tank has been seted up at the top of card axle, fixed mounting has same mounting panel on the top inner wall. The utility model discloses simple structure rotates the screw rod and can realize the clear effect to the filter screen, and when needs change the filter screen, only needs the pulling pull rod, alright shift out in following the constant head tank with making the locating lever, convenient and fast, easy operation only needs the step of a pulling alright realize dismantling.

Description

Can dismantle controllable formula check valve of filter screen

Technical Field

The utility model relates to a check valve technical field especially relates to a can dismantle controllable formula check valve of filter screen.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The stop valve and the stop valve are combined for use, and the safety isolation effect can be achieved. The disadvantages are high resistance and poor sealing performance when closed.

The existing controllable check valve needs to replace the filter screen inside the existing controllable check valve in a long-time use process, but the existing controllable check valve and the filter screen are integrated and cannot be disassembled, so that the replacement is not easy, and therefore the problem that the filter screen can be disassembled is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can dismantle controllable formula check valve of filter screen to solve current controllable formula check valve because the filter screen all is that setting up of integration can't dismantle it, so be difficult to the problem of changing.

In order to solve the above problem, the utility model provides a following technical scheme:

a controllable check valve with a detachable filter screen comprises a valve body, wherein a valve cavity is arranged on the valve body, fixing seats are fixedly arranged on the inner wall of the top part and the inner wall of the bottom part of the valve cavity, the same filter screen is clamped between the two fixing seats, the filter screen is matched with the valve cavity, two clamping shafts which are symmetrically arranged are fixedly arranged on one side, close to the fixing seats, of the filter screen, clamping grooves matched with the clamping shafts are formed in one side, close to the filter screen, of the fixing seats, one ends, far away from the filter screen, of the two clamping shafts respectively extend into the two clamping grooves, positioning grooves are formed in the top parts of the clamping shafts, the same mounting plate is fixedly arranged on the inner wall of the top part and the inner wall of the bottom part of the valve cavity, the mounting plate is attached to the two fixing seats, a groove is formed in one side, the one end fixed mounting of pull rod has the fixed plate, one side fixed mounting of fixed plate has two springs that the symmetry set up, and the spring keeps away from the one end of fixed plate and one side inner wall fixed connection of recess, one side swivelling joint that the fixed plate is close to the filter screen has two connecting axles that the symmetry set up, one side that the fixed plate was kept away from to the connecting axle is rotated and is connected with the locating lever, and one side that two locating levers were kept away from each other extends to in two constant head tanks respectively and clamps with the constant head tank mutually, rotates the screw rod and can realize the clear effect to the filter screen, and when needing to change the filter screen, only need the pulling pull rod, alright shift out in making the locating lever follow the constant head tank.

Specifically, one side fixed mounting that the mounting panel is close to the filter screen has two limiting plates that the symmetry set up, and two locating levers run through two limiting plates respectively and with limiting plate sliding connection, the setting of limiting plate has limit function to the locating lever for slide along the straight line all the time when the locating lever removes.

Specifically, the quantity of spring is two to four, and two to four spring equidistance arrange in one side of fixed plate, and when the pulling pull rod, the pull rod can stimulate the fixed plate and remove, and the fixed plate can compress the spring, when do not have the effort pull rod, under the elasticity that resets of spring, can make the fixed plate reset, so the setting of spring can make things convenient for the fixed plate to reset, therefore the quantity of spring is two at least.

Specifically, sliding connection has the fixed head on one side inner wall of valve pocket, one side fixed mounting of fixed head has the cleaning brush, and the cleaning brush is kept away from one side of fixed head and is laminated with one side of filter screen mutually, the bottom fixed mounting of fixed head has the screw thread seat, the bottom threaded connection of screw thread seat has the screw rod, the bottom of screw rod runs through the bottom inner wall of valve pocket and extends to the below of valve body, and the screw rod rotates with the bottom inner wall of valve pocket to be connected, when needs use the cleaning brush to clean the filter screen, rotates the screw rod this moment, screw rod and screw thread seat threaded connection so can drive the screw thread seat and remove, and then make the cleaning brush move on the filter screen for the cleaning brush can clean one side of filter screen, prevents to block up the filter screen.

Specifically, a rotating hole is formed in the inner wall of the bottom of the valve cavity, a bearing is fixedly mounted in the rotating hole, the bottom of the screw penetrates through an inner ring of the bearing and is rotatably connected with the inner ring of the bearing, and the rotating friction force of the screw can be reduced due to the arrangement of the bearing.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, when needs are cleaned the filter screen, rotate the screw rod this moment, because screw rod and screw thread seat threaded connection, and then can drive the cleaning brush and remove, so the cleaning brush can clean the filter screen, the effectual condition that prevents the filter screen jam from appearing.

The utility model discloses in, after the filter screen uses longer time, when needing to change the filter screen, the pulling pull rod removes this moment, and the pull rod can drive the fixed plate and remove, therefore can drive two locating levers and remove to the one side that is close to each other, when the locating lever shifts out from the constant head tank, alright change convenient and fast in order to pull down the filter screen.

The utility model discloses simple structure rotates the screw rod and can realize the clear effect to the filter screen, and when needs change the filter screen, only needs the pulling pull rod, alright shift out in following the constant head tank with making the locating lever, convenient and fast, easy operation only needs the step of a pulling alright realize dismantling.

Drawings

Fig. 1 is a schematic view of an overall structure of a controllable check valve with a detachable filter screen according to the present invention;

fig. 2 is a schematic view of a part of a structure of a controllable check valve with a detachable filter screen according to the present invention;

fig. 3 is the utility model provides a can dismantle the enlarged structure schematic diagram of a part of controllable check valve of filter screen.

In the figure: 1-valve body, 2-valve cavity, 3-fixing seat, 4-filter screen, 5-clamping shaft, 6-clamping groove, 7-positioning groove, 8-mounting plate, 9-pull rod, 10-fixing plate, 11-groove, 12-spring, 13-connecting shaft, 14-positioning rod, 15-limiting plate, 16-threaded seat, 17-fixing head, 18-cleaning brush and 19-screw rod.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

Examples

As shown in figures 1-3, a controllable check valve with detachable filter screen comprises a valve body 1, a valve cavity 2 is arranged on the valve body 1, fixing seats 3 are fixedly arranged on the inner wall of the top and the inner wall of the bottom of the valve cavity 2, a same filter screen 4 is clamped between the two fixing seats 3, the filter screen 4 is matched with the valve cavity 2, two clamping shafts 5 which are symmetrically arranged are fixedly arranged on one side of the filter screen 4 close to the fixing seats 3, clamping grooves 6 matched with the clamping shafts 5 are arranged on one side of the fixing seats 3 close to the filter screen 4, one ends of the two clamping shafts 5 far away from the filter screen 4 respectively extend into the two clamping grooves 6, positioning grooves 7 are arranged at the top of the clamping shafts 5, a same mounting plate 8 is fixedly arranged on the inner wall of the top and the inner wall of the bottom of the valve cavity 2, the mounting plate 8 is attached to the two fixing seats 3, a groove 11 is, two ends of a pull rod 9 extend to two sides of the mounting plate 8 respectively, one end of the pull rod 9 is fixedly provided with a fixing plate 10, one side of the fixing plate 10 is fixedly provided with two springs 12 which are symmetrically arranged, one end of each spring 12 far away from the fixing plate 10 is fixedly connected with the inner wall of one side of the groove 11, one side of the fixing plate 10 close to the filter screen 4 is rotatably connected with two connecting shafts 13 which are symmetrically arranged, one side of each connecting shaft 13 far away from the fixing plate 10 is rotatably connected with a positioning rod 14, one side of each positioning rod 14 far away from each other extends into the two positioning grooves 7 respectively and is clamped with the positioning grooves 7, when the filter screen 4 needs to be cleaned, the screw rod 19 is rotated, the screw rod 19 is in threaded connection with the threaded seat 16, and then the cleaning brush 18 can be driven to move, so that the cleaning brush 18 can clean the filter screen 4, when the filter screen 4 needs to be replaced, the pull rod 9 is pulled to move, the pull rod 9 drives the fixing plate 10 to move, so that the two positioning rods 14 are driven to move towards the sides close to each other, when the positioning rod 14 is moved out of the positioning groove 7, the filter screen 4 can be detached and replaced conveniently and quickly, the structure of the utility model is simple, the function of cleaning the filter screen 4 can be realized by rotating the screw rod 19, when the filter screen 4 needs to be replaced, the positioning rod 14 can be moved out of the positioning groove 7 only by pulling the pull rod 9, the operation is convenient and rapid, the operation is simple, the effect of cleaning the filter screen 4 can be realized by disassembling and rotating the screw rod 19 only by one pulling step, when the filter screen 4 needs to be replaced, the positioning rod 14 can be moved out of the positioning groove 7 only by pulling the pull rod 9, the operation is convenient and fast, the operation is simple, and the disassembly can be realized only by one pulling step.

The utility model discloses in, one side fixed mounting that mounting panel 8 is close to filter screen 4 has two limiting plates 15 that the symmetry set up, and two locating levers 14 run through two limiting plates 15 respectively and with limiting plate 15 sliding connection, limiting plate 15's setting has limit function to locating lever 14 for slide along the straight line all the time when locating lever 14 removes.

The utility model discloses in, the quantity of spring 12 is two to four, and two to four spring 12 equidistance arrange in one side of fixed plate 10, and when pulling pull rod 9, pull rod 9 can stimulate fixed plate 10 and remove, and fixed plate 10 can compression spring 12, when do not have effort pull rod 9, under spring 12's elasticity that resets, can make fixed plate 10 reset, so spring 12's setting can make things convenient for fixed plate 10 to reset, therefore spring 12's quantity is two at least.

The utility model discloses in, sliding connection has fixed head 17 on one side inner wall of valve chamber 2, one side fixed mounting of fixed head 17 has cleaning brush 18, and one side that fixed head 17 was kept away from to cleaning brush 18 is laminated with one side of filter screen 4 mutually, the bottom fixed mounting of fixed head 17 has screw thread seat 16, the bottom threaded connection of screw thread seat 16 has screw rod 19, the bottom inner wall of valve chamber 2 is run through and is extended to the below of valve body 1 to screw rod 19's bottom, and screw rod 19 rotates with the bottom inner wall of valve chamber 2 and is connected, when needing to use cleaning brush 18 to clean filter screen 4, rotate screw rod 19 this moment, 16 threaded connection of screw rod 19 and screw thread seat, so can drive screw thread seat 16 and remove, and then make cleaning brush 18 remove on filter screen 4, make cleaning brush 18 can clean one side of filter screen 4, prevent to block up filter screen 4.

The utility model discloses in, seted up rotatory hole on the bottom inner wall of valve pocket 2, and rotatory downthehole fixed mounting has the bearing, and the bottom of screw rod 19 runs through the inner circle of bearing and rotates with the inner circle of bearing to be connected, and the setting of bearing can reduce screw rod 19's rotation frictional force.

In the utility model, when the filter screen 4 needs to be cleaned, the screw rod 19 is rotated at the moment, because the screw rod 19 is in threaded connection with the threaded seat 16, the rotary motion can be converted into the linear motion, and then the fixed head 17 can be driven to move, and the fixed head 17 can drive the cleaning brush 18 to move, so the cleaning brush 18 can clean the filter screen 4, the filter screen 4 is effectively prevented from being blocked, when the filter screen 4 is used for a long time, the filter screen 4 needs to be replaced, the pull rod 9 is pulled to move at the moment, the pull rod 9 can drive the fixed plate 10 to move, the fixed plate 10 can compress the spring 12, the fixed plate 10 can drive the two connecting shafts 13 to move, the two connecting shafts 13 can pull the positioning rod 14 to move towards the side close to each other, the positioning rod 14 can not deviate when the positioning rod 14 moves under the action of the limiting plate 15, when the positioning rod 14 is moved out of the positioning groove 7, the filter screen 4 can be detached and replaced conveniently and quickly, and the detachment can be realized only by one pulling step.

According to the above embodiment, alright realize the utility model discloses well. It is worth to say that, on the premise of the above structural design, in order to solve the same technical problem, even if some insubstantial changes or retouching are made in the utility model, the essence of the adopted technical scheme is still the same as the utility model, so it should be in the protection scope of the utility model.

Claims

1. The controllable check valve with the detachable filter screen comprises a valve body (1) and is characterized in that a valve cavity (2) is arranged on the valve body (1), fixing seats (3) are fixedly arranged on the inner wall of the top and the inner wall of the bottom of the valve cavity (2) respectively, the same filter screen (4) is clamped between the two fixing seats (3), the filter screen (4) is matched with the valve cavity (2), two clamping shafts (5) which are symmetrically arranged are fixedly arranged on one side, close to the fixing seats (3), of the filter screen (4), clamping grooves (6) matched with the clamping shafts (5) are formed in one side, close to the filter screen (4), of the fixing seats (3), one ends, far away from the filter screen (4), of the two clamping shafts (5) extend into the two clamping grooves (6) respectively, positioning grooves (7) are formed in the top of the clamping shafts (5), and the same mounting plate (8) is fixedly arranged on the inner wall of the, the mounting plate (8) is attached to the two fixing seats (3), one side of the mounting plate (8) close to the filter screen (4) is provided with a groove (11), the inner wall of one side of the groove (11) is connected with a pull rod (9) in a sliding way, two ends of the pull rod (9) respectively extend to two sides of the mounting plate (8), one end of the pull rod (9) is fixedly provided with a fixing plate (10), two symmetrically arranged springs (12) are fixedly arranged on one side of the fixed plate (10), and one end of the spring (12) far away from the fixed plate (10) is fixedly connected with the inner wall of one side of the groove (11), one side of the fixing plate (10) close to the filter screen (4) is rotationally connected with two connecting shafts (13) which are symmetrically arranged, one side of the connecting shaft (13) far away from the fixing plate (10) is rotatably connected with positioning rods (14), and one sides of the two positioning rods (14) far away from each other respectively extend into the two positioning grooves (7) and are clamped with the positioning grooves (7).

2. The controllable check valve of claim 1, wherein: one side fixed mounting that mounting panel (8) are close to filter screen (4) has two limiting plate (15) that the symmetry set up, and two locating lever (14) run through two limiting plate (15) respectively and with limiting plate (15) sliding connection.

3. The controllable check valve of claim 1, wherein: the number of the springs (12) is two to four, and the two to four springs (12) are equidistantly arranged on one side of the fixing plate (10).

4. The controllable check valve of claim 1, wherein: sliding connection has fixed head (17) on one side inner wall of valve pocket (2), one side fixed mounting of fixed head (17) has cleaning brush (18), and cleaning brush (18) keep away from one side of fixed head (17) and laminate mutually with one side of filter screen (4), the bottom fixed mounting of fixed head (17) has screw thread seat (16), the bottom threaded connection of screw thread seat (16) has screw rod (19), the bottom inner wall of valve pocket (2) is run through and the below of extending to valve body (1) in the bottom of screw rod (19), and screw rod (19) are connected with the bottom inner wall rotation of valve pocket (2).

5. The controllable check valve of claim 4, wherein: the inner wall of the bottom of the valve cavity (2) is provided with a rotating hole, a bearing is fixedly mounted in the rotating hole, and the bottom of the screw rod (19) penetrates through the inner ring of the bearing and is rotatably connected with the inner ring of the bearing.