CN214457283U - Multifunctional composite filter element with scale inhibition function - Google Patents

Abstract

The utility model discloses a multifunctional composite filter element with scale inhibition function, which comprises a filter flask and a filter flask cover, wherein a front filter element, an RO filter element and a rear filter element are arranged in the filter flask, a first sleeve is arranged in a central tube of the RO filter element, and the front filter element and the rear filter element are arranged up and down and are arranged in the first sleeve; the first sleeve is provided with a second water through hole, is positioned outside the rear filter element and is communicated with the first water through hole on the central tube; the filter also comprises a second sleeve, the second sleeve penetrates through the interior of the front filter element and the interior of the rear filter element, and the lower end of the second sleeve is communicated with the interior of the first sleeve; and a scale inhibition unit is also arranged in the filter bottle cover. The utility model integrates the prepositive filter element, the RO filter element and the postpositive filter element in one filter flask, thereby greatly reducing the volume of the water purifier; the scale inhibition unit can prevent calcium and magnesium ions from being formed into scale, and the service life of the filter element is prolonged.

Description

Multifunctional composite filter element with scale inhibition function

Technical Field

The utility model belongs to the technical field of water purification unit, in particular to multi-functional composite filter core with hinder dirty function.

Background

The current water purifier generally includes the RO filter core, for further protection RO filter core, can set up leading filter core in leading filtration water route, for further improving quality of water, obtains better taste, can set up rearmounted filter core in rearmounted filtration water route. The necessary parts of the water purifier cannot be reduced, so that the volume of the water purifier is directly related to the filter element. Generally, a single filter element is independently arranged in a single filter bottle, so that the water purifier is provided with a plurality of filter bottles, and each filter bottle needs to occupy the volume of the water purifier. The water purifier is too large in size, and may not be normally installed when the installation space of a user is limited.

Meanwhile, the water hardness of some places is high, the content of calcium and magnesium ions in water is high, and long-term drinking of high-hardness water can cause chronic poisoning of human bodies and seriously harm the health of people. The content of calcium and magnesium ions in the high-hardness water can be effectively reduced through the filtration of the filter element of the water purifier, however, the RO filter element is easy to block due to the fact that the high-hardness water contains a large amount of calcium and magnesium ions, and the service life is short.

Disclosure of Invention

The utility model aims at solving the above problem, provide a can reduce the filter core and occupy the volume, and can effectively prevent the multi-functional composite filter core of scale deposit.

Therefore, the technical scheme of the utility model is that: the utility model provides a multi-functional composite filter core with hinder dirty function, includes filter flask and filter flask lid, both fixed connection are equipped with leading filter core, RO filter core and rearmounted filter core in the filter flask, its characterized in that: a central tube is arranged in the RO filter element, and a first limber hole is formed in the central tube; the central tube is internally provided with a first sleeve, and the front filter element and the rear filter element are arranged up and down and are arranged in the first sleeve; the first sleeve is provided with a second water through hole, is positioned outside the rear filter element and is communicated with the first water through hole on the central tube; the filter also comprises a second sleeve, the second sleeve penetrates through the interior of the front filter element and the interior of the rear filter element, and the lower end of the second sleeve is communicated with the interior of the first sleeve; the filter flask is characterized in that 5 water inlet and outlet ports are arranged on the filter flask cover and comprise a second water inlet port, a second water inlet channel is arranged between the outer side of the RO filter element and the inner wall of the filter flask, a scale inhibition unit is further arranged in the filter flask cover and is positioned between the second water inlet port and the second water inlet channel.

Preferably, the scale inhibition unit is of an annular structure, and a scale inhibitor is arranged inside the scale inhibition unit; an opening is formed in one side, facing the second water inlet channel, of the scale inhibition unit.

Preferably, a first water inlet channel is arranged in the second sleeve, the bottom of the central tube is a closed end, a first water flow channel is arranged between the lower part of the front filter element and the closed end, and the second sleeve is communicated with the outer side of the front filter element through the first water flow channel; and a second water flowing channel is arranged between the central tube and the first sleeve, and the second water flowing channel is communicated with the first water through hole and the second water through hole, namely communicated with the inner side of the RO filter element and the outer side of the rear filter element.

Preferably, the preposed filter element comprises a first supporting pipe, a third water through hole is formed in the first supporting pipe, and a second PP cotton layer, an activated carbon layer and a first PP cotton layer are respectively arranged on the first supporting pipe from inside to outside; the rear filter element comprises a second supporting pipe, and a rear activated carbon layer is arranged on the outer side of the second supporting pipe; the rear filter element is arranged above the front filter element, the first supporting pipe and the second supporting pipe are butted into a whole up and down, and the lower end part of the second supporting pipe is tightly attached to the inner wall of the first sleeve pipe.

Preferably, the second sleeve is positioned in the first supporting pipe and the second supporting pipe, and a first water outlet channel is arranged outside the second sleeve; and a second water outlet channel is arranged between the inner side of the rear activated carbon layer and the second supporting pipe.

Preferably, the RO filter element comprises an RO membrane and a top cover, the top cover is sleeved on the RO membrane and seals the top end face of the RO membrane, and a second water outlet column is arranged in the middle of the top cover; the top end of the central tube is tightly matched with the first sleeve, a first water outlet column is arranged above the first sleeve, the first water outlet column is arranged in the second water outlet column, and a wastewater channel is arranged between the first water outlet column and the second water outlet column.

Preferably, establish a boss in the middle of the filter bottle lid, the boss both sides are equipped with the locating piece, 5 business turn over water interfaces set up in the boss, are first interface, the second interface of intaking, waste water interface, pure water interface respectively, all are equipped with in the business turn over water interface and proclaim oneself the water subassembly.

Preferably, a waterway conversion piece is further fixed inside the filter bottle cover, and 5 water inlet and outlet holes are formed in the waterway conversion piece and communicated with a water inlet and outlet interface on the filter bottle cover.

Preferably, the 5 water inlet and outlet holes on the waterway conversion piece are respectively a first water inlet hole, a first water outlet hole, a second water inlet hole, a waste water hole and a pure water hole; the water path conversion piece is provided with 4 rings of concentric annular protective walls towards one side of the RO filter element and is divided into a first protective wall, a second protective wall, a third protective wall and a fourth protective wall from inside to outside, a first water inlet hole is communicated with the inside of the first protective wall, a first water outlet hole is communicated with the first protective wall and the second protective wall, a second water inlet hole is communicated with the outside of the fourth protective wall, a pure water hole is communicated with the second protective wall and the third protective wall, and a wastewater hole is communicated with the third protective wall and the fourth protective wall.

Raw water enters the filter flask from a first water inlet interface of the filter flask cover, flows along a second sleeve pipe at the central position, flows to the outer side of the front filter element from a first water flow channel between the front filter element and the closed end of the central pipe, enters the water from the side surface of the front filter element, is filtered by a first PP cotton layer, an activated carbon layer and a second PP cotton layer, enters a first water outlet channel between the first support pipe and the second sleeve pipe along a third water through hole of the first support pipe, and flows out from a first water outlet interface of the filter flask cover;

the water primarily filtered by the preposed filter element flows according to the design of a water path, flows through the water inlet electromagnetic valve and the booster pump, enters the filter flask from a second water inlet connector of the filter flask cover after being pressurized by the booster pump, then flows from the inner side to the outer side of the scale inhibition unit through the scale inhibition unit, and flows to a second water inlet channel after passing through the opening of the scale inhibition unit and contacting with the scale inhibitor in the scale inhibition unit; water flows to the bottom of the RO membrane along a second water inlet channel between the filter flask and the RO membrane and enters from the bottom end face of the RO membrane because water cannot enter from the outer side of the RO membrane;

after water flow is filtered by an RO membrane, produced pure water enters a second water flow channel between a central tube and a first sleeve through a first water through hole on the central tube and then enters the outer side of the rear filter element from a second water through hole above the first sleeve, the pure water flows out from the outer side of the rear filter element, the pure water filtered by the rear activated carbon layer flows along a second water outlet channel between the inner side of the rear activated carbon layer and a second support tube and flows out from a first water outlet column and a pure water connector of the first sleeve; and the wastewater generated by the RO membrane passes through a wastewater channel between the second water outlet column and the first water outlet column and is discharged from the wastewater interface.

The utility model integrates the preposed filter element, the RO filter element and the postposition filter element in one filter flask, fully utilizes the space in the filter flask, reduces the space occupied by the filter elements, thereby greatly reducing the volume of the water purifier and meeting the use requirements of more occasions; the filter flask installs spacingly through the boss of lower extreme, during the installation disect insertion filter flask can, need not to rotate, it is more convenient to install. Simultaneously, set up one before the inhalant canal of RO filter core and hinder dirty unit for before water gets into the RO membrane, earlier through hindering dirty unit, can prevent that calcium magnesium ion from forming the incrustation scale and blockking up the RO membrane, prolong the life of RO filter core.

Drawings

The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a cross-sectional view of a front cartridge;

FIG. 3 is a cross-sectional view of the rear cartridge;

FIG. 4 is a structural sectional view of the scale inhibition unit;

fig. 5 is a top view of the structure of the present invention;

fig. 6 is an explosion diagram of the structure of the filter bottle cap of the present invention;

FIGS. 7 and 8 are schematic structural views of the waterway conversion member;

FIG. 9 is a schematic structural view of the self-sealing water assembly of the present invention;

fig. 10 is a schematic view of the installation of the present invention;

fig. 11 is a schematic diagram of the waterway of the operation of the present invention.

Labeled as: the filter flask comprises a filter flask 1, a filter flask cover 2, a boss 21, a trapezoidal positioning block 22, a first water inlet connector 23, a first water outlet connector 24, a second water inlet connector 25, a wastewater connector 26, a pure water connector 27, a cover plate 28, a sealing gasket 29, a first supporting pipe 31, a third water through hole 32, a first PP cotton layer 33, an activated carbon layer 34, a second PP cotton layer 35, a second supporting pipe 36, a rear activated carbon layer 37, an RO membrane 41, a top cover 42, a central pipe 43, a first water through hole 44, a second water outlet column 46, a first sleeve 51, a second water through hole 511, a first water outlet column 512, a second sleeve 52, a first water inlet channel 61, a first water outlet channel 62, a second water inlet channel 63, a wastewater channel 64, a second water outlet channel 65, a first water channel 66, a second water outlet channel 67, a self-sealing water-sealing component 7, a base 71, a sealing element 72, a spring 73, an annular water path block 74, a sealing ring 75, a water path conversion element 8, The device comprises a first water inlet hole 81, a first water outlet hole 82, a second water inlet hole 83, a waste water hole 84, a pure water hole 85, a first protective wall 86, a second protective wall 87, a third protective wall 88, a fourth protective wall 89, a scale inhibition unit 9, an opening 91, a scale inhibitor 93, a waterway plate 10, a filter element seat 11, a sliding unit 12, a trapezoidal stop block 121, a push rod 122, a fixed locking unit 13, a motor 14, a cam 15, a return spring 16, a water inlet electromagnetic valve 17, a booster pump 18, a one-way valve 19, a high-pressure switch 110, a water outlet tap 111 and a waste water electromagnetic valve 112.

Detailed Description

See the drawings. The composite filter element of the embodiment comprises a filter bottle 1 and a filter bottle cover 2 which are fixedly connected, for convenience of description, the position of the filter bottle cover is regarded as the upper side, and the bottom of the filter bottle is regarded as the lower side.

The filter flask is internally provided with a preposed filter element, an RO filter element and a postposition filter element, the RO filter element comprises an RO membrane 41 and a top cover 42, and the top cover 42 is sleeved on the RO membrane 41 and seals the top end face of the RO membrane 41; a central pipe 43 is arranged in the RO membrane 41, and a first water through hole 44 is arranged on the circumference of the central pipe; a first sleeve 51 is arranged in the central tube 43, a front filter element and a rear filter element which are arranged up and down are arranged in the first sleeve 51, and the front filter element is arranged below the rear filter element; the first sleeve 51 is provided with a second water through hole 511 which is positioned outside the rear filter element and communicated with the first water through hole 44 on the central tube; the front filter element comprises a first supporting pipe 31, a third water through hole 32 is formed in the first supporting pipe, and a second PP cotton layer 35, an activated carbon layer 34 and a first PP cotton layer 33 are respectively arranged on the first supporting pipe 31 from inside to outside; the rear filter element comprises a second support pipe 36, and a rear activated carbon layer 37 is arranged on the outer side of the second support pipe 36; the first support tube 31 and the second support tube 36 are connected together, and the lower end of the second support tube 36 is closely attached to the inner wall of the first sleeve 51. The interior of the front filter element and the rear filter element is provided with a second sleeve 52, the second sleeve 52 is positioned in the first support pipe 31 and the second support pipe 36, and the lower end of the second sleeve 52 is communicated with the interior of the first sleeve 51.

A first water inlet channel 61 is arranged in the second sleeve 52, the bottom of the central tube 43 is a closed end, a first water flowing channel 66 is arranged between the lower part of the front filter element and the closed end, and the second sleeve 52 is communicated with the outer side of the front filter element through the first water flowing channel 66; a first water outlet channel 62 is arranged among the first supporting tube 31, the second supporting tube 36 and the second sleeve 52; a second water inlet channel 63 is arranged between the outer side of the RO membrane 41 and the inner wall of the filter flask 1, a second water flowing channel 67 is arranged between the central tube 43 and the first sleeve 51, the second water flowing channel 67 is communicated with a first water flowing hole 44 at the inner side of the RO filter element and a second water flowing hole 511 at the outer side of the post-filter element, and a second water outlet channel 65 is arranged between the inner side of the post-activated carbon layer 37 and the second support tube 36. A second water outlet column 46 is arranged in the middle of the top cover 42 above the RO membrane; the top end of the central tube 43 is tightly fitted with the first sleeve 51, a first water outlet column 512 is arranged above the first sleeve 51, the first water outlet column 512 is arranged inside the second water outlet column 46, and a waste water channel 64 is arranged between the first water outlet column and the second water outlet column.

A boss 21 is arranged in the middle of the filter bottle cap 2, trapezoidal positioning blocks 22 are arranged on two sides of the boss, 5 water inlet and outlet interfaces are arranged in the boss and comprise a first water inlet interface 23, a first water outlet interface 24, a second water inlet interface 25, a wastewater interface 26 and a pure water interface 27, a self-sealing water assembly 7 is arranged in each water inlet and outlet interface, and a cover plate 28 is arranged on the outermost part of the filter bottle cap; a water path conversion piece 8 is further fixed in the filter bottle cover, and a sealing gasket 29 is arranged between the filter bottle cover and the water path conversion piece 8; the waterway conversion piece is provided with 5 water inlet and outlet holes which are respectively a first water inlet hole 81, a first water outlet hole 82, a second water inlet hole 83, a waste water hole 84 and a pure water hole 85 and are communicated with the water inlet and outlet interface in the boss. The water path conversion part 8 is provided with 4 circles of concentric circular protective walls towards one side of the RO membrane assembly, and is divided into a first protective wall 86, a second protective wall 87, a third protective wall 88 and a fourth protective wall 89 from inside to outside, a first water inlet 81 is communicated with the inside of the first protective wall 86, a first water outlet 82 is communicated with the first protective wall and the second protective wall, a second water inlet 83 is communicated with the outside of the fourth protective wall 89, a pure water hole 85 is communicated with the second protective wall and the third protective wall, and a waste water hole 84 is communicated with the third protective wall and the fourth protective wall.

The filter bottle cap 2 is also internally provided with a scale inhibition unit 9, and the scale inhibition unit 9 is positioned between the second water inlet connector 25 and the second water inlet channel 63. The scale inhibition unit 9 is of an annular structure, and a scale inhibitor 93 is arranged inside the scale inhibition unit; an opening 91 is formed in one side, facing the second water inlet channel 63, of the scale inhibition unit.

The self-sealing water assembly 7 comprises a base 71, a sealing element 72 and a spring 73, wherein the base is of a hollow cylindrical structure, a protruding annular block 74 is arranged inside the base, and the aperture in the middle of the annular block is smaller than the apertures of the upper end and the lower end of the base; the sealing member is T-shaped, the small end of the sealing member penetrates through the annular step surface, the sealing ring 75 is sleeved at the lower end of the sealing member and abuts against the step surface below the annular block, the spring is sleeved on the sealing member, one end of the spring abuts against the large end of the sealing member, and the other end of the spring abuts against the step surface above the annular block.

The water circuit board 10 is provided with a filter element fixing seat, the filter element fixing seat comprises a filter element seat 11, a sliding unit 12 and a fixing and locking unit 13, 5 filter element interfaces are arranged in the filter element seat 11, sliding rails are arranged on two sides inside the filter element seat, and the sliding unit 12 is arranged in the filter element seat 11 and can move along the sliding rails; a first opening is formed in the middle of the sliding unit 12, and a plurality of trapezoidal stoppers 121 are arranged on two sides of the first opening; the fixed locking unit 13 is positioned above the sliding unit 12 and fixed with the filter element seat 11, and a second elongated slot-shaped opening is formed in the middle of the fixed locking unit. The water circuit board 10 is also provided with a motor 14 and a cam 15, the motor is positioned at one side of the filter element seat, and the cam is arranged on the motor; the sliding unit 12 is provided with a push rod 122 on one side facing the motor, the protruding part of the cam cooperates with the push rod, the cam pushes the sliding unit to slide inwards, and the inner side of the sliding unit is provided with a return spring 16.

The boss 21 on the filter bottle 1 is inserted in alignment with the second opening in the middle of the fixed locking unit 13, and the trapezoid positioning blocks 22 on both sides of the boss slide downwards along the trapezoid stopper 121 of the sliding unit, so that the sliding unit slides inwards along the slide rail, i.e. away from the motor 14. When the filter cartridge is inserted into position, the slide unit 12 is moved back towards the motor 14 by the return spring 16, returning to the position before insertion of the filter cartridge. Therefore, the trapezoidal stop block 121 of the sliding unit is blocked on the trapezoidal positioning block 22 of the filter bottle to limit and fix the filter element up and down.

Raw water a enters the filter flask from the first water inlet port 23 of the filter flask cover and the first water inlet hole 81 of the water path conversion piece, flows along the second sleeve 52 at the central position, flows to the outer side of the front filter element from the first water flow channel 66 between the lower part of the front filter element and the closed end of the central tube, enters the first water outlet channel 62 between the first support tube 31 and the second sleeve 52 along the third water through hole 32 of the first support tube 31 after being filtered by the first PP cotton layer 33, the activated carbon layer 34 and the second PP cotton layer 35, and flows out of primary filtered water b from the first water outlet hole 82 and the first water outlet port 24 of the filter flask cover 2;

the primary filter water b flows according to the water path design, flows through the water inlet electromagnetic valve 17 and the booster pump 18, and the water pressurized by the booster pump 18 enters the filter flask from the second water inlet connector 25 of the filter flask cover and the second water inlet hole 83 of the water path conversion piece, then flows from the inner side to the outer side of the scale inhibition unit through the scale inhibition unit 9, and flows through the opening 91 of the scale inhibition unit, contacts with the scale inhibitor 93 in the scale inhibition unit and then flows to the second water inlet channel 63;

because water can not enter from the outer side of the RO membrane, the water flows to the bottom of the RO membrane 41 along a second water inlet channel 63 between the filter flask and the RO membrane and enters from the bottom end face of the RO membrane; after water flow is filtered by the RO membrane 41, the generated pure water c enters the second water flow channel 67 between the central tube 43 and the first sleeve 51 through the first water through hole 44 on the central tube 43, then enters the outer side of the rear filter element from the second water through hole 511 above the first sleeve 51, the pure water flows out from the outer side of the rear filter element, the pure water filtered by the rear filter element flows along the second water outlet channel 65 between the inner side of the rear filter element and the support tube 31, flows out from the first water outlet column 512 and the pure water interface 27 of the first sleeve 51, passes through the one-way valve 19 and the high-pressure switch 110, and flows out from the water outlet tap 111; the wastewater d generated by the RO membrane is discharged from the wastewater channel 64 between the second water outlet column of the top cover 42 and the first water outlet column 512 of the first sleeve 51, and is connected to the wastewater outlet through the wastewater solenoid valve 112.

Claims (9)

1. The utility model provides a multi-functional composite filter core with hinder dirty function, includes filter flask and filter flask lid, both fixed connection are equipped with leading filter core, RO filter core and rearmounted filter core in the filter flask, its characterized in that: a central tube is arranged in the RO filter element, and a first limber hole is formed in the central tube; the central tube is internally provided with a first sleeve, and the front filter element and the rear filter element are arranged up and down and are arranged in the first sleeve; the first sleeve is provided with a second water through hole, is positioned outside the rear filter element and is communicated with the first water through hole on the central tube; the filter also comprises a second sleeve, the second sleeve penetrates through the interior of the front filter element and the interior of the rear filter element, and the lower end of the second sleeve is communicated with the interior of the first sleeve; the filter flask is characterized in that 5 water inlet and outlet ports are arranged on the filter flask cover and comprise a second water inlet port, a second water inlet channel is arranged between the outer side of the RO filter element and the inner wall of the filter flask, a scale inhibition unit is further arranged in the filter flask cover and is positioned between the second water inlet port and the second water inlet channel.

2. The multifunctional composite filter element with the scale inhibition function of claim 1, which is characterized in that: the scale inhibition unit is of an annular structure, and a scale inhibitor is arranged inside the scale inhibition unit; an opening is formed in one side, facing the second water inlet channel, of the scale inhibition unit.

3. The multifunctional composite filter element with the scale inhibition function of claim 1, which is characterized in that: a first water inlet channel is arranged in the second sleeve, the bottom of the central tube is a closed end, a first flow channel is arranged between the lower part of the front filter element and the closed end, and the second sleeve is communicated with the outer side of the front filter element through the first flow channel; and a second water flowing channel is arranged between the central tube and the first sleeve, and the second water flowing channel is communicated with the first water through hole and the second water through hole, namely communicated with the inner side of the RO filter element and the outer side of the rear filter element.

4. The multifunctional composite filter element with the scale inhibition function of claim 1, which is characterized in that: the front filter element comprises a first supporting pipe, a third water through hole is formed in the first supporting pipe, and a second PP cotton layer, an activated carbon layer and a first PP cotton layer are respectively arranged on the first supporting pipe from inside to outside; the rear filter element comprises a second supporting pipe, and a rear activated carbon layer is arranged on the outer side of the second supporting pipe; the rear filter element is arranged above the front filter element, the first supporting pipe and the second supporting pipe are butted into a whole up and down, and the lower end part of the second supporting pipe is tightly attached to the inner wall of the first sleeve pipe.

5. The multifunctional composite filter element with the scale inhibition function of claim 4, wherein: the second sleeve is positioned in the first supporting pipe and the second supporting pipe, and a first water outlet channel is arranged outside the second sleeve; and a second water outlet channel is arranged between the inner side of the rear activated carbon layer and the second supporting pipe.

6. The multifunctional composite filter element with the scale inhibition function of claim 1, which is characterized in that: the RO filter element comprises an RO membrane and a top cover, the top cover is sleeved on the RO membrane and seals the top end face of the RO membrane, and a second water outlet column is arranged in the middle of the top cover; the top end of the central tube is tightly matched with the first sleeve, a first water outlet column is arranged above the first sleeve, the first water outlet column is arranged in the second water outlet column, and a wastewater channel is arranged between the first water outlet column and the second water outlet column.

7. The multifunctional composite filter element with the scale inhibition function of claim 1, which is characterized in that: establish a boss in the middle of the filter flask lid, the boss both sides are equipped with the locating piece, 5 business turn over water interface settings are in the boss, are first interface, the second interface of intaking, waste water interface, pure water interface respectively, all are equipped with in the business turn over water interface and proclaim oneself the water subassembly.

8. The multifunctional composite filter element with the scale inhibition function of claim 1, which is characterized in that: a waterway conversion piece is further fixed inside the filter bottle cover, and 5 water inlet and outlet holes are formed in the waterway conversion piece and communicated with a water inlet and outlet interface on the filter bottle cover.

9. The multifunctional composite filter element with the scale inhibition function of claim 8, wherein: the 5 water inlet and outlet holes on the waterway conversion piece are respectively a first water inlet hole, a first water outlet hole, a second water inlet hole, a waste water hole and a pure water hole; the water path conversion piece is provided with 4 rings of concentric annular protective walls towards one side of the RO filter element and is divided into a first protective wall, a second protective wall, a third protective wall and a fourth protective wall from inside to outside, a first water inlet hole is communicated with the inside of the first protective wall, a first water outlet hole is communicated with the first protective wall and the second protective wall, a second water inlet hole is communicated with the outside of the fourth protective wall, a pure water hole is communicated with the second protective wall and the third protective wall, and a wastewater hole is communicated with the third protective wall and the fourth protective wall.

Images