CN111593806A

CN111593806A - Multipurpose toilet system

Info

Publication number: CN111593806A
Application number: CN202010655476.4A
Authority: CN
Inventors: 杨金华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-08-28

Abstract

The invention relates to the technical field of articles for daily use, in particular to a multipurpose toilet system. The multipurpose toileting system comprises a squatting pan, a toilet seat ring and a lifting mechanism; the squatting pan is arranged on the ground and is in transmission connection with the lifting mechanism, and a sewage discharge outlet of the squatting pan is communicated with a sewer pipe through a hose; the two toilet seat rings are distributed left and right and are respectively and rotatably connected to the edges of two sides of the squatting pan, the two toilet seat rings can be respectively rotated to be attached to and cover the upper surface of the panel of the squatting pan to form an annular cushion together, or respectively rotated to two sides or two sides below the panel of the squatting pan; the lifting mechanism is connected with the squatting pan and used for driving the squatting pan to move up and down. The advantages are that: the structure design is simple and reasonable, the occupied space is small, the installation is easy, the use requirements of different people can be met, and the toilet bowl with different heights is convenient, comfortable, clean and sanitary to use.

Description

Multipurpose toilet system

Technical Field

The invention relates to the technical field of articles for daily use, in particular to a multipurpose toilet system.

Background

The toilet is used as a main functional room for daily household life of people, and the indoor area and space directly determine the comfort level of people in use.

The utility model discloses a toilet bowl, including the toilet bowl, the toilet bowl is fixed, the toilet bowl is.

Disclosure of Invention

The invention aims to solve the technical problem of providing a multipurpose toilet system, effectively overcoming the defects of the prior art, vertically integrating three spatial positions of a plane toilet, a squatting pan and a shower on the same plane, greatly saving the use area of a toilet and providing a choice for sitting and squatting people.

The technical scheme for solving the technical problems is as follows:

provides a multi-purpose toilet system, which comprises a squatting pan, a toilet seat ring and a lifting mechanism; the squatting pan is arranged on the ground and is in transmission connection with the lifting mechanism, and a sewage discharge outlet of the squatting pan is communicated with a sewer pipe through a hose; the two toilet seat rings are distributed left and right and are respectively and rotatably connected to the edges of two sides of the squatting pan, the two toilet seat rings can be respectively and rotatably attached to and cover the upper surface of the panel of the squatting pan to form an annular cushion together, or respectively and rotatably connected to two sides or two sides below the panel of the squatting pan; the lifting mechanism is connected with the squatting pan and used for driving the squatting pan to move up and down.

The invention has the beneficial effects that: the structure design is simple and reasonable, the occupied space is small, the installation is easy, the use requirements of different people can be met, and the toilet bowl with different heights is convenient, comfortable, clean and sanitary to use.

On the basis of the technical scheme, the invention can be further improved as follows.

And the flushing system is connected with the water inlet of the squatting basin and used for flushing the interior of the squatting basin.

The beneficial effect of adopting the further scheme is that the squatting pan is easy to be well washed after being used.

Furthermore, the flushing system comprises a water tank, the water tank is arranged under the ground, and a flushing port of the water tank is connected with a water inlet of the squatting pan through a pipeline.

The beneficial effects of adopting above-mentioned further scheme are that the design is simple, does not occupy the ground space, convenient to use.

Further, a groove area for accommodating the squatting pan is arranged on the ground, the lifting mechanism is used for driving the squatting pan to move downwards and contract into the groove area, and in the state, the two toilet seat rings can rotate to two sides of the inner part of the groove area or drive the squatting pan to move upwards to the upper part of the groove area.

The beneficial effects of adopting above-mentioned further scheme are that the reasonable installation of the basin of squatting of being convenient for is used, does not occupy extra space volume, and the overall arrangement is more reasonable.

The squatting pan further comprises two first treadles, wherein the two first treadles are respectively and rotatably connected to the upper ends of the edges of the two sides of the groove area and can respectively rotate to the two sides of the upper end of the squatting pan panel which is pressed on and contracted into the groove area or respectively rotate to the two sides of the upper end of the groove area.

The beneficial effect who adopts above-mentioned further scheme is that this design makes effectual cover the basin of squatting when squatting for the basin panel of squatting is clean, sanitary, uses more comfortablely, easily follow-up clearance clean.

Furthermore, each first pedal is rotatably connected with the upper end of the corresponding side edge of the groove area through a rotating shaft, and one end of the rotating shaft is respectively connected with a driving device for driving the first pedal to rotate around the axis.

Adopt the beneficial effect of above-mentioned further scheme to be easily the upset of first step board and use.

Further, the driving device is a motor, and a driving shaft of the motor is connected to one end of the corresponding rotating shaft.

The beneficial effect of adopting above-mentioned further scheme is convenient to use, and the electric control operation is more simple and convenient.

The second pedal can be turned forwards under the action of external force to press the panel of the squatting pan contracted into the groove area, cover the groove area and expose the urinal cavity of the squatting pan, or turn backwards to be close to the wall surface.

The beneficial effects of adopting above-mentioned further scheme are that this design is fairly simple, reasonable, and the operation is more convenient for effectual cover basin of squatting during the squatting of just, make the basin panel of squatting clean, health, use more comfortable, easily follow-up clearance is cleaned.

Further, the lifting mechanism comprises two bottom beams, two top beams, two sets of scissor arms and a telescopic device, wherein the two top beams are respectively fixed at the lower ends of two sides of the panel of the squatting pan along the front-back direction, the two bottom beams are respectively fixed on the bottom wall of the groove area along the front-back direction and are distributed below the two top beams in a one-to-one correspondence manner, the rear ends or the front ends of the two bottom beams and the two top beams are respectively provided with a sliding block in a sliding manner along the front-back direction, a connecting beam is connected between the two sliding blocks positioned below, the two sets of scissor arms are respectively vertically arranged between the two sets of bottom beams and the top beams which correspond up and down, the scissor arms are composed of two supporting arms which are mutually connected at the middle parts, the upper end of one supporting arm is movably connected with the sliding block on the corresponding top beam, and the lower end of the supporting arm is movably, the upper end of the other supporting arm is movably connected with one end, far away from the sliding block, of the corresponding top beam, the lower end of the other supporting arm is movably connected with the corresponding sliding block on the bottom beam, the telescopic device is assembled on the bottom wall of the groove area, the telescopic end of the telescopic device is movably connected with the connecting beam, the telescopic device is used for driving the connecting beam to drive the two sliding blocks below the connecting beam to slide back and forth along the corresponding end of the corresponding bottom beam, and therefore the two groups of scissor arms are driven to move to drive the squatting pot to lift.

The beneficial effects of adopting the further scheme are that elevating system reasonable in design operates steadily.

Furthermore, ultraviolet lamps for respectively sterilizing the toilet seat rings on two sides are respectively arranged on two sides of the squatting pan.

Adopt the beneficial effect of above-mentioned further scheme to be can disinfect the disinfection and kill the processing to the closestool ring through the irradiation of ultraviolet lamp for the user uses safelyr.

Drawings

FIG. 1 is a side elevational view of the construction of the multi-use toilet system of the present invention;

FIG. 2 is a schematic front view of the multi-use toilet system of the present invention;

FIG. 3 is a schematic front view of the raised pan of the multi-purpose toilet system of the present invention;

FIG. 4 is a schematic front view of the multi-purpose toilet system of the present invention with a first pedal;

FIG. 5 is a schematic front view of the multi-purpose toilet system with a first pedal for lifting the squat basin;

FIG. 6 is a schematic top view of the first auxiliary lid covering the squat basin during use of the multi-purpose toilet system of the present invention with the first pedal covering the squat basin;

FIG. 7 is a schematic front view of the multi-purpose toilet system of the present invention with a second pedal for the use of the squat basin as a squat toilet;

FIG. 8 is a schematic side view of the multi-purpose toilet system of the present invention with a second pedal for the use of a squat basin as a toilet bowl;

FIG. 9 is a schematic top view of the second auxiliary lid covering the squat basin during use in the multi-purpose toilet system of the present invention with the second treadle covering the squat basin.

In the drawings, the components represented by the respective reference numerals are listed below:

1. squatting pan, 2, toilet seat, 3, elevating system, 4, water tank, 5, first pedal, 6, second pedal, 7, first supplementary apron, 8, second supplementary apron, 31, floorbar, 32, back timber, 33, scissors arm, 34, slider, 35, telescoping device.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example (b): as shown in fig. 1 to 3, the multi-purpose toilet system of the present embodiment includes a squat bowl 1, a toilet seat 2, and a lifting mechanism 3; the squatting pan 1 is arranged on the ground and is in transmission connection with the lifting mechanism 3, and a sewage discharge outlet of the squatting pan is communicated with a sewer pipe through a hose; the two toilet seat rings 2 are distributed left and right and are respectively and rotatably connected to the edges of two sides of the squatting pan 1, the two toilet seat rings 2 can be respectively rotated to be attached to and cover the upper surface of the panel of the squatting pan 1, and form an annular seat cushion together, or respectively rotated to two sides or two sides below the panel of the squatting pan 1; the lifting mechanism 3 is connected with the squatting pan 1 and used for driving the squatting pan 1 to move up and down.

When in use, the method comprises the following steps:

1) as shown in fig. 2, when the squatting pan is used, specifically, the lifting mechanism 3 drives the squatting pan 1 to move and descend to the floor of a toilet, and enables the two toilet seat rings 2 to be turned over to two sides of the squatting pan 1, and a user can step on two sides of a panel of the squatting pan 1 to squat the squatting pan for use;

2) as shown in fig. 3, the toilet seat is used, specifically, the lifting mechanism 3 drives the squat bowl 1 to move and rise to the height of the toilet above the floor, and makes the two toilet seats 2 turn over and stick to the upper end of the panel of the squat bowl 1, and exposes the urinal cavity of the squat bowl 1 (in this state, the two toilet seats 2 form an annular whole ring and completely cover the upper end of the panel of the squat bowl 1, and the user can sit on the cushion formed by the two toilet seats 2 to sit for the toilet.

Whole embodiment design makes squat basin 1 can satisfy the demand of toilet seat and squatting pan to, when the toilet seat used, the cushion combines with squat basin 1 an organic whole, does not occupy extra installation space, uses more nimble, convenient.

The following are specifically mentioned: the panel of the squatting pan 1 refers to an annular plate surface at the upper end of a conventional squatting pan.

In some embodiments, the toilet further comprises a flushing system, wherein the flushing system is connected with the water inlet of the squatting pan 1 and used for flushing the interior of the squatting pan 1.

In the embodiment, the flushing requirement of the squatting pan 1 after being used normally like a toilet can be met through the flushing system, and the use is more convenient and comfortable.

In some embodiments, the flushing system includes a water tank 4, the water tank 4 is installed under the ground, and a flushing port of the water tank 4 is connected with a water inlet of the squat basin 1 through a pipeline.

In the embodiment, the existing water tank 4 is combined with the whole system, so that the squatting pan 1 is convenient to flush after going to the toilet, and the floor space is not occupied.

In some embodiments, a rubber ring is disposed at one end of the toilet seat 2 close to the squatting pan 1.

In the embodiment, when the toilet seat 2 is abutted against the upper ends of the two sides of the panel of the squatting pan 1, the sealing performance between the toilet seat and the squatting pan can be ensured to be better, and the toilet seat is not easy to be damaged by pressure during sitting.

In some embodiments, a recessed area for accommodating the squat bowl 1 is formed on the floor, the lifting mechanism 3 is configured to drive the squat bowl 1 to move downward and retract into the recessed area, and in this state, the two toilet seats 2 can rotate to both sides of the inner portion of the recessed area, or drive the squat bowl 1 to move upward above the recessed area.

In this embodiment, the width of recess region should be greater than the width of the basin 1 of squatting to can satisfy the upset position demand of closestool seat 2, can not receive the influence of recess region and unable the use when making its upset, specific saying so, closestool seat 2 can overturn to the inside both sides regional of recess in the region of the inside when squatting basin 1 is in the low level (when contracting to the recess region in), easily accomodate.

In some embodiments, as shown in fig. 4 and 5, two first pedals 5 are further included, and the two first pedals 5 are respectively rotatably connected to the upper ends of the two side edges of the recessed area, and can be respectively rotated to press both sides of the upper end of the panel of the squat basin 1 retracted into the recessed area, or respectively rotated to both sides of the upper end of the recessed area.

When the embodiment is used, the following modes are included:

1) as shown in fig. 4, the squatting pan is used, specifically, the lifting mechanism 3 drives the squatting pan 1 to move and descend to the groove area (generally, the squatting pan 1 descends to the level of the panel and the ground), the two toilet seat rings 2 are turned over to the two sides of the squatting pan 1, the two first pedals 5 are rotated to be pressed on the two sides of the upper end of the panel of the squatting pan 1 (in this state, the two first pedals 5 can completely cover the groove area and the panel of the squatting pan 1, and the urinal cavity of the squatting pan 1 is exposed), and the user can just sit in the squatting pan by stepping on the two first pedals 5, so that the cleanness of the panel of the squatting pan 1 can be well ensured, and the groove area can be effectively covered;

2) as shown in fig. 5, the toilet seat is used, specifically, two first pedals 5 are turned over to two sides of the upper end of the groove area, the squatting pan 1 is driven to move and rise to the height of the two first pedals 5 in the toilet through the lifting mechanism 3, and the two toilet seat rings 2 are turned over and attached to the upper end of the panel of the squatting pan 1, and the cavity of the squatting pan 1 is exposed (in this state, the two toilet seat rings 2 form an annular whole ring and completely cover the upper end of the panel of the squatting pan 1, and a user can sit on the cushion formed by the two toilet seat rings 2 to sit as a toilet.

This embodiment makes effectual cover basin 1 of squatting when squatting for the basin 1 of squatting's panel is clean, sanitary, uses more comfortablely, easily follow-up clearance clean.

In some embodiments, each of the first pedals 5 is rotatably connected to the upper end of the corresponding side edge of the recessed area by a rotating shaft, and a driving device for driving the rotating shaft to rotate around the axis is connected to one end of the rotating shaft.

In this embodiment, the first pedal 5 is connected to the corresponding position of the groove region through the rotating shaft, so that the connection is simple, and the rotation of the first pedal 5 is stable.

In some embodiments, the driving device is a motor, and a driving shaft of the motor is connected to one end of the corresponding rotating shaft.

In this embodiment, the motor drives the rotating shaft to rotate, so as to drive the first pedal 5 to turn over, and the electric control is more convenient and simple.

Of course, the driving device may also be a telescopic rod such as a hydraulic rod connected to the outer side of the first pedal 5, and accordingly, a controller for controlling the driving device to operate is designed in the toilet, which is convenient for a user to control by one key.

In other embodiments, as shown in fig. 6, the first auxiliary cover plate 7 is further included, when the two first pedals 5 cover the upper broken panel of the squatting pan 1 in a turning manner, a gap corresponding to the urinal cavity of the squatting pan 1 is formed between the two first pedals 5, the first auxiliary cover plate 7 is rotatably connected to the ground behind the squatting pan 1, the first auxiliary cover plate 7 can be turned back and forth, and when the first pedals 5 cover the upper end panel of the squatting pan 1 in the groove area, the first auxiliary cover plate 7 can be turned forward to cover the gap between the two first pedals 5, so that no gap or hole site is formed on the ground, people can stand conveniently during bathing, and the space is saved sufficiently.

In some embodiments, as shown in fig. 6 and 7, the toilet bowl further comprises a second pedal 6, the second pedal 6 is rotatably connected to the ground behind the squat bowl 1 and has a hole corresponding to the urinal cavity of the squat bowl 1, and the second pedal 6 can be turned over forward under the action of external force to press on the panel of the squat bowl 1 retracted into the recessed area, and can cover the recessed area and expose the urinal cavity of the squat bowl 1, or can be turned over backward to approach the wall surface.

In this embodiment, the second pedal 6 is operated and used in a manner of being opened and closed up and down, and has a simple structure and is relatively convenient and quick to operate.

More specifically, the rear end of the second pedal 6 is rotatably connected to the ground above the water tank 4.

In other embodiments, as shown in fig. 9, a gap corresponding to the urinal cavity of the squat basin 1 is provided on the second pedal 6, the gap extends to the rear end of the second pedal 6, a second auxiliary cover plate 8 is rotatably connected to the ground behind the squat basin 1, the second auxiliary cover plate 8 can be turned back and forth, and when the second pedal 6 covers the upper end panel of the squat basin 1 in the groove area, the second auxiliary cover plate 8 can be turned forward to cover the gap on the second pedal 6, so that there is no gap or hole site on the ground, and people can stand conveniently during bathing, thereby fully saving space.

In some embodiments, as shown in fig. 1 and 7, the lifting mechanism 3 includes two bottom beams 31, two top beams 32, two sets of scissor arms 33 and a telescopic device 35, the two top beams 32 are respectively fixed to the lower ends of the two sides of the panel of the squat basin 1 along the front-back direction, the two bottom beams 31 are respectively fixed to the bottom wall of the recessed area along the front-back direction and are distributed below the two top beams 32 in a one-to-one correspondence manner, sliders 34 are respectively slidably mounted at the rear ends or the front ends of the two bottom beams 31 and the two top beams 32 along the front-back direction, a connecting beam is connected between the two sliders 34 located below, the two sets of scissor arms 33 are respectively vertically arranged between the two sets of bottom beams 31 and top beams 32 corresponding to each other, the scissor arms 33 are composed of two support arms whose middle portions are mutually connected, wherein the upper end of one of the support arm is movably connected with the slider 34 on the corresponding top beam 32, the lower end of the telescopic device is movably connected with the end, far away from the sliding block 34, of the bottom beam 31, the upper end of the other supporting arm is movably connected with the end, far away from the sliding block 34, of the top beam 32, the lower end of the other supporting arm is movably connected with the sliding block 34, far away from the sliding block 34, of the corresponding bottom beam 31, the telescopic device 35 is assembled on the bottom wall of the groove area, the telescopic end of the telescopic device is movably connected with the connecting beam, the connecting beam is driven to drive the two lower sliding blocks 34 to slide back and forth along the corresponding end of the bottom beam 31, and therefore the two sets of scissor arms 33 are driven to move, and the squatting pan 1 is driven to ascend and descend.

More specifically, taking the example that the two bottom beams 31 and the two top beams 32 are respectively provided with the sliding blocks 34 in a sliding manner at the rear ends, a cross beam is also connected between the front ends of the two bottom beams 31, the telescopic device 35 is installed on the cross beam, and the telescopic end thereof extends backwards to be movably connected with the connecting beam.

In the embodiment, the lifting mechanism 3 has better integral supporting structure, stable stress and stable operation, and is very favorable for the lifting operation of the squatting pan 1 and the good support during the sitting and the sitting.

The above-mentioned telescoping device 35 preferably uses hydraulic rod and oil cylinder, connect oil pump and hydraulic station during the use can, its operation is more steady, can also select cylinder, electric putter and other products or structures that have similar effect according to actual conditions certainly.

Optimally, a control device for controlling the lifting mechanism 3 to lift and run is arranged in the toilet, and the control can be integrated with the controller of the driving device, so that a user can control the squatting pan 1 to lift and use in a one-key mode.

In some embodiments, as shown in fig. 4, 5, 6 and 7, ultraviolet lamps 7 for sterilizing the toilet seat 2 are respectively disposed at both sides of the squat basin 1.

In this embodiment, the ultraviolet lamps 7 on both sides can be turned on to sterilize and sterilize when the toilet seat 2 is respectively turned over to both sides of the squat bowl 1, and generally, the ultraviolet lamps 7 are turned on to sterilize and sterilize after the squat bowl 1 is lowered into the groove area.

It should be added that: ultraviolet lamp 7 can assemble in 1 both sides of squatting pot through the shelf that suspends in midair, perhaps all can through other leg joint, as long as satisfy ultraviolet lamp 7 can well shine upset to the closestool ring 2 of 1 both sides of squatting pot, generally use the electric power storage power supply (this electric power storage power supply direct mount with squat pot 1 side can, external control switch controls lighting and extinguishing of ultraviolet lamp 7.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A multi-purpose toilet system, characterized by: comprises a squatting pan (1), a toilet seat (2) and a lifting mechanism (3); the squatting pan (1) is arranged on the ground and is in transmission connection with the lifting mechanism (3), and a sewage discharge outlet of the squatting pan is communicated with a sewer pipe through a hose; the two toilet seat rings (2) are distributed left and right and are respectively and rotatably connected to the edges of the two sides of the squatting pan (1), and the two toilet seat rings (2) can respectively rotate to be attached to and cover the upper surface of the panel of the squatting pan (1) to form an annular cushion together or respectively rotate to the two sides or the lower parts of the two sides of the panel of the squatting pan (1); the lifting mechanism (3) is connected with the squatting pan (1) and used for driving the squatting pan (1) to move up and down.

2. A multi-purpose toilet system according to claim 1, wherein: still include the water flushing system, the water flushing system with the water inlet of squatting basin (1) is connected, is used for right the inside bath of squatting basin (1).

3. A multi-purpose toilet system according to claim 2, wherein: the flushing system comprises a water tank (4), the water tank (4) is installed under the ground, and a flushing port of the water tank (4) is connected with a water inlet of the squatting pan (1) through a pipeline.

4. A multi-purpose toilet system according to any one of claims 1 to 3, wherein: subaerial being equipped with and being used for holding the groove area of squatting basin (1), elevating system (3) are used for the drive squatting basin (1) moves down and contracts extremely in the groove area, and under this state, two closestool ring seat (2) are rotatable extremely the inside both sides of groove area, or drive squatting basin (1) rebound extremely the top of groove area.

5. A multi-purpose toilet system according to claim 4, wherein: still include two first pedal (5), two first pedal (5) rotate respectively connect in the upper end of the both sides edge of recess region to can rotate respectively to press cover in shrink to in the recess region squat basin (1) panel's upper end both sides, or rotate respectively to the upper end both sides of recess region.

6. A multi-purpose toilet system according to claim 5, wherein: each first pedal (5) is rotatably connected with the upper end of the corresponding side edge of the groove area through a rotating shaft, and one end of the rotating shaft is respectively connected with a driving device for driving the first pedal to rotate around the axis.

7. A multi-purpose toilet system according to claim 6, wherein: the driving device is a motor, and a driving shaft of the motor is connected with one end of the corresponding rotating shaft.

8. A multi-purpose toilet system according to claim 4, wherein: still include second pedal (6), second pedal (6) rotate connect in the subaerial at squatting basin (1) rear has on it with the hole site that the urinal cavity of squatting basin (1) corresponds, second pedal (6) can overturn forward under the exogenic action and cover in the shrink extremely to the pressure in the recess region is interior on the panel of squatting basin (1), and cover the recess region just exposes the urinal cavity of squatting basin (1), or the upset backward is close to the wall.

9. A multi-purpose toilet system according to claim 4, wherein: elevating system (3) are including two floorbars (31), two back timber (32), two sets of fork arms (33) and telescoping device (35), two back timber (32) are fixed in along the fore-and-aft direction respectively the both sides lower extreme of the panel of the basin (1) of squatting, two the floorbar (31) are fixed in along the fore-and-aft direction respectively on the regional diapire of recess to the distribution of one-to-one is in two the below of back timber (32), two floorbar (31) and two there are slider (34) rear end or front end of back timber (32) along fore-and-aft direction slidable mounting respectively, and be located two of below be connected with even roof beam, two sets of fork arms (33) vertical setting respectively in corresponding from top to bottom two sets of between floorbar (31) and back timber (32), fork arm (33) constitute by the two spinal branch arms of the mutual handing-over of middle part, one of them the upper end of support arm with correspond slider (34) swing joint on back timber (32), its lower extreme with correspond the one end swing joint of slider (34) is kept away from in floorbar (31), another one the upper end of support arm with correspond top timber (32) keep away from the one end swing joint of slider (34), its lower extreme with correspond slider (34) swing joint on floorbar (31), telescoping device (35) assemble in the regional diapire of recess, its flexible end with link roof beam swing joint, telescoping device (35) are used for ordering about link two of roof beam drive below slider (34) are followed correspondingly the correspondence of floorbar (31) is slided from beginning to end, thereby orders about two sets ofly scissors arm (33) remove, in order to drive the basin of squatting (1) goes up and down.

10. A multi-purpose toilet system according to claim 4, wherein: and ultraviolet lamps (7) for respectively sterilizing the toilet seat rings (2) on two sides are respectively arranged on two sides of the squatting pan (1).