CN221191739U - Ro dense water purifying treatment device - Google Patents

Abstract

The utility model relates to the field of water purifying equipment, in particular to a Ro concentrated water purifying treatment device, which comprises a bottom plate, a filter barrel, a booster pump, a filter mechanism and a fixed bracket, wherein the filter mechanism is provided with a filter pipe, a filter pipe cover, a mounting bracket and a Ro filter membrane; the filter pipe is provided with a first pipe body and a second pipe body, the mounting bracket is arranged between the first pipe body and the second pipe body, and the filter pipe cover is arranged at one side of the filter pipe; be provided with first mounting panel on the second body, be provided with collar and connecting rod on the installing support, the collar has two, the both ends and the collar fixed connection of Ro filtration membrane, the connecting rod has a plurality ofly and the both ends of connecting rod are connected with two collars respectively, when Ro filtration membrane is in mounted position, one collar is connected with first mounting panel, another collar is connected with the filtration tube lid. The utility model solves the problem that the filtering membrane is difficult to clean and replace by the mounting bracket and the filtering tube cover.

Description

Ro dense water purifying treatment device

Technical Field

The utility model relates to the field of water purifying equipment, in particular to a Ro concentrated water purifying treatment device.

Background

Concentrate is generally considered to be wastewater which is high in salt content and has a certain organic matter generated during the desalting treatment, and as one of industrial wastewater, concentrate is not directly discharged since concentrate seriously contaminates water resources.

In the prior art, the main flow mode for treating the concentrated water is activated carbon adsorption, and as the activated carbon has good adsorption performance, the adsorption performance of the activated carbon is utilized to adsorb pollutants in the concentrated water and precipitate the pollutants, so that the pollutants in the concentrated water are reduced and then discharged. The concentrated water also contains part of pollutants such as part of salts which are not attached to the activated carbon, and along with the improvement of environmental protection standards, the mode of removing the pollutants by using the activated carbon through adsorption cannot meet the environmental protection requirement.

Chinese patent CN208802954U discloses a zero release device of concentrated water of RO, including the waste water bucket that is used for depositing concentrated water temporarily, the play water end of waste water bucket is continuous with the inlet end of sand filtering bucket with the pipeline, the inside of sand filtering bucket is provided with the filter screen, still includes a plurality of filter tubes, and two adjacent filter tubes pass through the pipeline intercommunication, the outlet end of sand filtering bucket passes through the pipeline and keeps away from the inlet end intercommunication of the filter tube on ground, the filter tube includes first body and second body, in the second body was worn to locate by first body, it has the through-hole to open on the first body, first body external surface parcel has filtering membrane, and the filter tube outlet end that is close to ground is connected with distillation plant.

However, the above mechanism is difficult to clean and replace the filtration membrane, and the filtration membrane is easy to age after long-time use, resulting in poor filtration effect of the filtration membrane on concentrated water.

Disclosure of utility model

To above-mentioned problem, provide a Ro dense water purification unit, solved the problem that is difficult to clear up and change filtering membrane through installing support and filter tube lid.

In order to solve the problems in the prior art, the utility model provides a Ro concentrated water purifying treatment device which comprises a bottom plate, a filter barrel, a booster pump, a filter mechanism and a fixed bracket, wherein the filter mechanism is provided with a filter pipe, a filter pipe cover, a mounting bracket and a Ro filter membrane; the filter tube is provided with a first tube body and a second tube body, the first tube body is provided with a plurality of through holes, the mounting bracket is arranged between the first tube body and the second tube body, the filter tube cover is arranged on one side of the filter tube, and the filter tube cover is movably connected with the filter tube; the two ends of the Ro filtering membrane are fixedly connected with the mounting rings, the connecting rods are multiple, and the two ends of the connecting rods are respectively connected with the two mounting rings; the filter vat is arranged on the bottom plate, the booster pump is arranged on the bottom plate, the filter pipe is arranged on the bottom plate, one side of the booster pump is communicated with the filter vat, and the other side is communicated with the filter pipe.

Preferably, the second pipe body is further provided with a second mounting plate, a first mounting groove and a second mounting groove; the second mounting panel sets up on first mounting panel, and the outer wall of second mounting panel and first body surrounds and forms first mounting groove, first mounting groove and collar sliding fit, and the second mounting groove sets up on the second mounting panel, and the second mounting groove has a plurality ofly, second mounting groove and connecting rod sliding fit.

Preferably, a fixed bracket is also arranged; the fixed bolster sets up on the base, and the filter tube has a plurality ofly and along the setting of the direction interval of the height of fixed bolster on the fixed bolster.

Preferably, the filter barrel is provided with a filter barrel cover and a filter screen; the filter vat cover sets up at the filter vat top, and the filter screen setting is provided with the locking groove in the bottom of filter vat cover on the filter vat cover, and the locking groove sets up in the bottom of filter vat cover, is provided with the latch segment on the filter screen, and the latch segment sets up at the top of filter screen, latch segment and locking groove swing joint, and the locking groove has a plurality ofly, and the latch segment is the same with the quantity of latch segment.

Preferably, the locking groove is provided with a first chute, a second chute and a third chute; the third chute is arranged at the bottom of the filtering barrel cover, the third chute extends along the height direction of the filtering barrel cover, the second chute is arranged at the bottom of the filtering barrel cover and communicated with the third chute, the first chute is arranged at the bottom of the filtering barrel cover and is arranged at the bottom of the filtering barrel cover, the first chute is positioned above the second chute and is communicated with the second chute and the third chute, and the second chute is smaller than the first chute; the locking block is provided with a first sliding block and a second sliding block, the second sliding block is arranged at the top of the filter screen, the second sliding block is in sliding fit with the second sliding groove, the first sliding block is arranged at the top of the second sliding block, and the first sliding block is in sliding fit with the first sliding groove and the third sliding groove.

Preferably, the locking groove is also provided with a clamping block; the clamping block is arranged at one side of the bottom of the first chute, which is far away from the third chute; the locking block is provided with a clamping groove, the clamping groove is formed in the top of the first sliding block, and when the filter screen is at the installation position, the clamping block is clamped in the clamping groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. The utility model is provided with a fixed support, the Ro filter membrane is arranged on the fixed support, the outer wall of the first pipe body is provided with a first mounting plate, the filter pipe cover is arranged on one side of the filter pipe far away from the first mounting plate, when the Ro filter membrane is arranged, the first mounting plate is connected with the mounting ring on one side of the Ro filter membrane, the mounting ring on the other side is abutted against the filter pipe cover, the fixed support and the Ro filter membrane on the fixed support are fixed through the first mounting plate and the worry pipe cover, after the Ro filter membrane is used for a long time, the Ro filter membrane is aged, the filtering effect of the device on concentrated water is poor, at the moment, the Ro filter membrane on the fixed support can be replaced by opening the filter pipe cover, and the device can be used for efficiently filtering salts in the concentrated water.

2. The utility model is provided with the locking groove and the locking block, the third sliding groove extends along the height direction of the filter barrel cover, the first sliding groove and the second sliding groove extend around the axis of the filter barrel cover, the first sliding block is in sliding fit with the first sliding groove and the third sliding groove, the second sliding block is in sliding fit with the second sliding groove, when the filter screen is installed, the first sliding block slides into the third sliding groove until the top of the filter screen abuts against the bottom of the filter barrel cover, the filter screen is rotated, the first sliding block and the second sliding block slide into the first sliding groove and the second sliding groove respectively, the filter screen is fixed, the filter screen is conveniently removed from the filter barrel cover after the filter barrel is used for a long time through the locking block and the locking groove, the filter screen is replaced or maintained, and the filter barrel is ensured to keep higher filtering efficiency and filtering effect on solid particles in concentrated water.

3. The utility model is provided with the clamping block and the clamping groove, the clamping block is arranged at one side of the bottom of the first chute, which is far away from the third chute, the clamping groove is arranged at the top of the first sliding block, when the filter screen is installed, the filter screen is rotated, the first sliding block slides to one side of the first chute, which is far away from the third chute, and the clamping block is clamped in the clamping groove, so that the stability of the filter screen after being fixed is improved through the clamping block and the clamping groove, and the filter screen is convenient for filtering solid particles in concentrated water.

Drawings

Fig. 1 is a schematic perspective view of a Ro concentrate purification treatment apparatus.

Fig. 2 is a cross-sectional view of a filter tube of a Ro concentrate purification treatment apparatus.

Fig. 3 is a partial schematic view of a Ro concentrate purification treatment apparatus at a.

Fig. 4 is a schematic perspective view of a mounting bracket and Ro filter membrane of a Ro concentrate purification treatment apparatus.

Fig. 5 is a sectional view of a filter vat of a Ro concentrate purification treatment apparatus.

Fig. 6 is a partial schematic view of a Ro concentrate purification treatment apparatus at B.

Fig. 7 is a partial schematic view of a filter cartridge and filter screen of a Ro concentrate purification treatment apparatus.

The reference numerals in the figures are: 1-a bottom plate; 2-a filter vat; 21-a filter barrel cover; 211-locking grooves; 2111-a first chute; 2112-a second chute; 2113-third runner; 2114-snap-fit blocks; 22-a filter screen; 221-locking blocks; 2211—a first slider; 2212—a second slider; 2213-a clamping groove; 3-a booster pump; 4-a filtering mechanism; 41-a filter tube; 411-first tube; 412-a second tube; 4121-a first mounting plate; 4122-a second mounting plate; 4123-a first mounting groove; 4124-a second mounting groove; 42-a filter tube cover; 43-mounting a bracket; 431-mounting ring; 432-connecting rods; a 44-Ro filtration membrane; 5-fixing the bracket.

Detailed Description

The utility model will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the utility model and the specific objects and functions achieved.

Referring to fig. 1-4: the Ro concentrated water purifying treatment device comprises a bottom plate 1, a filter barrel 2, a booster pump 3, a filter mechanism 4 and a fixed bracket 5, wherein a filter pipe 41, a filter pipe cover 42, a mounting bracket 43 and a Ro filter membrane 44 are arranged on the filter mechanism 4; the filter tube 41 is provided with a first tube body 411 and a second tube body 412, the first tube body 411 is provided with a plurality of through holes, the mounting bracket 43 is arranged between the first tube body 411 and the second tube body 412, the filter tube cover 42 is arranged on one side of the filter tube 41, and the filter tube cover 42 is movably connected with the filter tube 41; the second pipe body 412 is provided with a first mounting plate 4121, the mounting bracket 43 is provided with two mounting rings 431 and two connecting rods 432, the two ends of the Ro filtering membrane 44 are fixedly connected with the mounting rings 431, the connecting rods 432 are provided with a plurality of connecting rods 432, the two ends of the connecting rods 432 are respectively connected with the two mounting rings 431, when the Ro filtering membrane 44 is in the mounting position, one mounting ring 431 is connected with the first mounting plate 4121, and the other mounting ring 431 is connected with the filtering pipe cover 42; the filter vat 2 is arranged on the bottom plate 1, the pressure pump 3 is arranged on the bottom plate 1, the filter pipe 41 is arranged on the bottom plate 1, one side of the pressure pump 3 is communicated with the filter vat 2, and the other side is communicated with the filter pipe 41.

The filter vat 2 is arranged on the bottom plate 1, the filter vat 2 is used for primarily filtering impurity particles in concentrated water, the filter tube 41 is provided with a first tube 411 and a second tube 412, the first tube 411 and the second tube 412 extend along the horizontal direction, the booster pump 3 is arranged on the bottom plate 1, one side of the booster pump 3 is communicated with the filter vat 2, the other side is communicated with the first tube 411 of the filter tube 41, the booster pump 3 is used for pumping the concentrated water in the filter vat 2 into the first tube 411, the first tube 411 is provided with a plurality of through holes for allowing the concentrated water to pass through, the first mounting plate 4121 is arranged on the outer wall of the first tube 411, the first mounting plate 4121 is used for limiting the position of the Ro filter membrane 44, the mounting bracket 43 is arranged between the first tube 411 and the second tube 412, the mounting bracket 43 is provided with a mounting ring 431 and a connecting rod 432, the two mounting rings 431 are fixedly connected with two ends of the Ro filtering film 44 respectively, the inner wall of the mounting ring 431 is abutted with the outer wall of the first pipe body 411, the tightness of the Ro filtering film 44 is improved, a plurality of connecting rods 432 are arranged between the two mounting rings 431, the two ends of the connecting rods 432 are fixedly connected with the two mounting rings 431 respectively, the connecting rods 432 are used for supporting the Ro filtering film 44, the Ro filtering film 44 can surround all through holes on the first pipe body 411, the Ro filtering film 44 is a semi-permeable film, the Ro filtering film 44 is used for filtering salt in concentrated water, the filtering pipe cover 42 is arranged on one side of the filtering pipe 41 far away from the first mounting plate 4121, the filtering pipe cover 42 is in threaded fit with the filtering pipe 41, when the Ro filtering film 44 is at the mounting position, the mounting ring 431 on one side of the Ro filtering film 44 is abutted with the first mounting plate 4121, the mounting ring 431 on the other side is abutted with the filtering pipe cover 42, the mounting bracket 43 and the Ro filter membrane 44 are fixed through the first mounting plate 4121 and the filter tube cover 42, when the Ro filter membrane 44 is aged after being used for a long time, the filtering effect of the device on concentrated water is poor, at the moment, the Ro filter membrane 44 on the mounting bracket 43 can be replaced by opening the filter tube cover 42, and the device is guaranteed to be capable of efficiently filtering salts in the concentrated water.

Referring to fig. 2 and 3: the second pipe 412 is further provided with a second mounting plate 4122, a first mounting groove 4123 and a second mounting groove 4124; the second mounting plate 4122 is disposed on the first mounting plate 4121, the second mounting plate 4122 surrounds the outer wall of the first tube 411 to form a first mounting groove 4123, the first mounting groove 4123 is slidably engaged with the mounting ring 431, the second mounting groove 4124 is disposed on the second mounting plate 4122, the second mounting groove 4124 has a plurality, and the second mounting groove 4124 is slidably engaged with the connecting rod 432.

The second mounting plate 4122 is arranged on the first mounting plate 4121, the second mounting plate 4122 is annular, the axis of the second mounting plate 4122 coincides with the axis of the first pipe body 411, the second mounting plate 4122 surrounds the outer wall of the first pipe body 411 to form a first mounting groove 4123, the first mounting groove 4123 is in sliding fit with the mounting ring 431, the first mounting groove 4123 is used for improving stability of the mounting bracket 43 and the Ro filtering membrane 44, a plurality of second mounting grooves 4124 are arranged on the second mounting plate 4122, the number of the second mounting grooves 4124 is the same as that of the connecting rods 432, the second mounting grooves 4124 are in sliding fit with the connecting rods 432, the second mounting grooves 4124 are used for improving stability of the mounting bracket 43 and the Ro filtering membrane 44, and the Ro filtering membrane 44 is convenient to filter salts in concentrated water by the first mounting groove 4123 and the second mounting groove 4124.

Referring to fig. 1: a fixed bracket 5 is also arranged; the fixing bracket 5 is provided on the base, and the filter tube 41 has a plurality of and is provided on the fixing bracket 5 at intervals in the height direction of the fixing bracket 5.

The fixed support 5 is arranged on the bottom plate 1, the plurality of filter pipes 41 are arranged on the fixed support 5 at intervals along the height direction of the fixed support 5, the second pipe body 412 of the plurality of filter pipes 41 is communicated with the first pipe body 411 of the filter pipe 41 below the fixed support 5, the first pipe body 411 of the uppermost filter pipe 41 is communicated with the booster pump 3, the booster pump 3 pumps concentrated water into the first pipe body 411 of the filter pipe 41, the concentrated water is filtered by the Ro filter membrane 44 and enters the second pipe body 412, then filtered concentrated water flows into the first pipe body 411 of the next filter pipe 41, the concentrated water is filtered by the Ro filter membrane 44 again until the concentrated water flows into the second pipe body 412 of the filter pipe 41 below the concentrated water, and the concentrated water is filtered by the plurality of filter pipes 41 for a plurality of times, so that the filtering effect of the device on salt components in the concentrated water is improved.

Referring to fig. 5: the filter barrel 2 is provided with a filter barrel cover 21 and a filter screen 22; the filter vat cover 21 is arranged at the top of the filter vat 2, the filter screen 22 is arranged at the bottom of the filter vat cover 21, the filter vat cover 21 is provided with locking grooves 211, the locking grooves 211 are arranged at the bottom of the filter vat cover 21, the filter screen 22 is provided with locking blocks 221, the locking blocks 221 are arranged at the top of the filter screen 22, the locking blocks 221 are movably connected with the locking grooves 211, the locking grooves 211 are multiple, and the number of the locking blocks 221 is the same as that of the locking blocks 221.

The filter vat cover 21 sets up at the top of filter vat 2, filter screen 22 sets up the bottom at filter vat cover 21, be provided with the inlet opening that is used for dense water to pass through on the filter vat cover 21, filter screen 22 surrounds the inlet water, when dense water gets into filter vat 2, carry out preliminary filtration through filter screen 22, solid particles in the dense water filters, avoid the solid particles in the dense water to harm the Ro filtration membrane 44, accelerate the ageing of Ro filtration membrane 44, a plurality of lock grooves 211 set up the bottom at filter vat cover 21, a plurality of lock pieces 221 set up the top at filter screen 22, the lock pieces 221 are the same with the quantity of lock grooves 211, lock pieces 221 and lock grooves 211 swing joint, fix filter screen 22 through lock pieces 221 and lock grooves 211, be convenient for take off filter screen 22 from filter vat cover 21 after filter vat 2 long-time use, change or be the maintenance to filter vat 22, guarantee that filter vat 2 keeps higher filtration efficiency and filter effect to the solid particles in the dense water.

Referring to fig. 5-7: the locking groove 211 is provided with a first sliding groove 2111, a second sliding groove 2112 and a third sliding groove 2113; the third chute 2113 is arranged at the bottom of the filtering barrel cover 21, the third chute 2113 extends along the height direction of the filtering barrel cover 21, the second chute 2112 is arranged at the bottom of the filtering barrel cover 21, the second chute 2112 is communicated with the third chute 2113, the first chute 2111 is arranged at the bottom of the filtering barrel cover 21, the first chute 2111 is positioned above the second chute 2112, the first chute 2111 is communicated with the second chute 2112 and the third chute 2113, and the second chute 2112 is smaller than the first chute 2111; the locking block 221 is provided with a first sliding block 2211 and a second sliding block 2212, the second sliding block 2212 is arranged at the top of the filter screen 22, the second sliding block 2212 is in sliding fit with the second sliding groove 2112, the first sliding block 2211 is arranged at the top of the second sliding block 2212, and the first sliding block 2211 is in sliding fit with the first sliding groove 2111 and the third sliding groove 2113.

The third chute 2113 is disposed at the bottom of the filter bung 21, the third chute 2113 extends along the height direction of the filter bung 21, the second chute 2112 is disposed at the bottom of the filter bung 21, the second chute 2112 is arc-shaped, the second chute 2112 extends around the axis of the filter bung 21, the second chute 2112 communicates with the third chute 2113, the first chute 2111 is disposed at the bottom of the filter bung 21, the first chute 2111 is disposed above the second chute 2112, the first chute 2111 is arc-shaped, the first chute 2111 extends around the axis direction of the filter bung 21, the first chute 2111 communicates with the second chute 2112 and the third chute 2113, the second chute 2112 is smaller than the first chute 2111, the second slider 2212 is disposed at the top of the filter screen 22, the second slider 2212 is in sliding fit with the second chute 2, the first slider 2211 is disposed at the top of the second slider 2212, when the filter screen 22 is installed, the first slide block 2211 slides into the third slide groove 2113 until the top of the filter screen 22 abuts against the bottom of the filter screen barrel cover 21, the filter screen 22 is rotated, the first slide block 2211 and the second slide block 2212 slide into the first slide groove 2111 and the second slide groove 2112 respectively, the filter screen 22 is rotated until the first slide block 2211 and the second slide block 2212 are far away from the third slide groove 2113, the fixation of the filter screen 22 is completed, the filter screen 22 is conveniently removed from the filter screen barrel cover 21 after the filter screen barrel 2 is used for a long time through the locking block 221 and the locking groove 211, the filter screen 22 is replaced or maintained, and the filter barrel 2 is ensured to keep higher filtering efficiency and filtering effect on solid particles in concentrated water.

Referring to fig. 6: the locking groove 211 is also provided with a clamping block 2114; the clamping block 2114 is arranged at one side of the bottom of the first chute 2111 away from the third chute 2113; the locking block 221 is provided with a clamping groove 2213, the clamping groove 2213 is arranged at the top of the first sliding block 2211, and when the filter screen 22 is in the installation position, the clamping block 2114 is clamped in the clamping groove 2213.

The joint piece 2114 sets up in the one side that third spout 2113 was kept away from to first spout 2111 bottom, joint groove 2213 sets up at the top of first slider 2211, when filter screen 22 is in the mounted position, joint piece 2114 card is in joint groove 2213, joint piece 2114 and joint groove 2213 are used for improving the stability of filter screen 22, when installing filter screen 22, slide first slider 2211 in the third spout 2113 until the top butt filter screen 22 filters the bottom of bung 21, rotate filter screen 22, slide first slider 2211 and second slider 2212 in first spout 2111 and second spout 2112 respectively, rotate filter screen 22, first slider 2211 slides to the one side that keeps away from third spout 2113 in the first spout 2111, joint piece 2114 card is in joint groove 2213, improve the stability after filter screen 22 is fixed through joint piece 2114 and joint groove 2213, be convenient for filter screen 22 to filter the solid particle in the dense water.

The foregoing examples merely illustrate one or more embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims (6)

1. The Ro concentrated water purifying treatment device comprises a bottom plate (1), a filter barrel (2), a pressurizing pump (3), a filter mechanism (4) and a fixed bracket (5), and is characterized in that a filter pipe (41), a filter pipe cover (42), a mounting bracket (43) and a Ro filter membrane (44) are arranged on the filter mechanism (4);

The filter tube (41) is provided with a first tube body (411) and a second tube body (412), the first tube body (411) is provided with a plurality of through holes, the mounting bracket (43) is arranged between the first tube body (411) and the second tube body (412), the filter tube cover (42) is arranged on one side of the filter tube (41), and the filter tube cover (42) is movably connected with the filter tube (41);

The second pipe body (412) is provided with a first mounting plate (4121), the mounting bracket (43) is provided with mounting rings (431) and connecting rods (432), the mounting rings (431) are two, two ends of the Ro filtering membrane (44) are fixedly connected with the mounting rings (431), the connecting rods (432) are multiple, two ends of the connecting rods (432) are respectively connected with the two mounting rings (431), when the Ro filtering membrane (44) is at the mounting position, one mounting ring (431) is connected with the first mounting plate (4121), and the other mounting ring (431) is connected with the filtering pipe cover (42);

the filter vat (2) is arranged on the bottom plate (1), the pressure pump (3) is arranged on the bottom plate (1), the filter pipe (41) is arranged on the bottom plate (1), one side of the pressure pump (3) is communicated with the filter vat (2), and the other side is communicated with the filter pipe (41).

2. The Ro concentrated water purification treatment apparatus according to claim 1, wherein a second mounting plate (4122), a first mounting groove (4123), and a second mounting groove (4124) are further provided on the second pipe body (412);

The second mounting plate (4122) is arranged on the first mounting plate (4121), the second mounting plate (4122) surrounds the outer wall of the first pipe body (411) to form a first mounting groove (4123), the first mounting groove (4123) is in sliding fit with the mounting ring (431), the second mounting groove (4124) is arranged on the second mounting plate (4122), the second mounting groove (4124) is provided with a plurality of second mounting grooves (4124), and the second mounting groove (4124) is in sliding fit with the connecting rod (432).

3. The Ro concentrated water purification treatment apparatus according to claim 1, further provided with a fixing bracket (5);

The fixed support (5) is arranged on the base, and the filter pipes (41) are arranged on the fixed support (5) at intervals along the height direction of the fixed support (5).

4. The Ro concentrated water purification treatment apparatus according to claim 1, wherein a filtering tub cover (21) and a filtering net (22) are provided on the filtering tub (2);

The filter vat cover (21) is arranged at the top of the filter vat (2), the filter screen (22) is arranged at the bottom of the filter vat cover (21), the filter vat cover (21) is provided with locking grooves (211), the locking grooves (211) are arranged at the bottom of the filter vat cover (21), the filter screen (22) is provided with locking blocks (221), the locking blocks (221) are arranged at the top of the filter screen (22), the locking blocks (221) are movably connected with the locking grooves (211), the locking grooves (211) are provided with a plurality of locking blocks (221), and the number of the locking blocks (221) is the same as that of the locking blocks (221).

5. The Ro concentrated water purification treatment apparatus according to claim 4, wherein the locking groove (211) is provided with a first chute (2111), a second chute (2112) and a third chute (2113);

The third chute (2113) is arranged at the bottom of the filtering barrel cover (21), the third chute (2113) extends along the height direction of the filtering barrel cover (21), the second chute (2112) is arranged at the bottom of the filtering barrel cover (21), the second chute (2112) is communicated with the third chute (2113), the first chute (2111) is arranged at the bottom of the filtering barrel cover (21), the first chute (2111) is positioned above the second chute (2112), the first chute (2111) is communicated with the second chute (2112) and the third chute (2113), and the second chute (2112) is smaller than the first chute (2111);

Be provided with first slider (2211) and second slider (2212) on retaining block (221), second slider (2212) sets up the top at filter screen (22), second slider (2212) and second spout (2112) sliding fit, first slider (2211) sets up the top at second slider (2212), first slider (2211) and first spout (2111) and third spout (2113) sliding fit.

6. The Ro concentrated water purification apparatus according to claim 5, wherein the locking groove (211) is further provided with a catching block (2114);

The clamping block (2114) is arranged at one side of the bottom of the first chute (2111) far away from the third chute (2113);

The locking block (221) is provided with a clamping groove (2213), the clamping groove (2213) is formed in the top of the first sliding block (2211), and when the filter screen (22) is in the installation position, the clamping block (2114) is clamped in the clamping groove (2213).