SE544642C2

SE544642C2 - Swimming pool with movable floor

Info

Publication number: SE544642C2
Application number: SE1950101A
Authority: SE
Inventors: Rudolf Cieslar
Original assignee: Berndorf Baederbau S R O
Priority date: 2018-10-22
Filing date: 2019-01-29
Publication date: 2022-10-04
Also published as: IE20190034A3; NL2022681A; CZ32547U1; IE20190034A2; ES1226407Y; IE87398B1; FR3087467A3; FI12413U1; HU5189U; DE202019100550U1; SK8777Y1; RU192405U1; UA137419U; SE1950101A1; BG3308U1; PL72638Y1; DK201900003U3; NO346385B1; BE1026725B1; ES1226407U

Abstract

The invention relates to a swimming pool with a movable floor, wherein a horizontal well (13) and a vertical well (14) are connected to an interior space (15) of the pool and located in a swimming pool wall (18), wherein a horizontal transmission shaft (1) is mounted in the horizontal well (13) and a vertical screw shaft (2) is mounted in the vertical well (14), wherein the horizontal transmission shaft (1) and the vertical screw shaft (2) provide movement of a movable floor (19) of the pool , characterized in that the outer uppermost point of the horizontal well (13) forms an overflow edge (23) of an overflow groove (24), wherein a cover (10) and/or the wall of the horizontal well (13) of the pool are provided with perforation openings (16).

Description

Technical Field The technical solution relates to a swimming pool, sink or tank with a movable floor, as well asmovable partition walls of swimming pools and movable platforms located under water or other fluid for immobile persons swimming in the swimming pools.

Background Art For the movement of movable floors, partition walls and platforms or other parts of theswimming pool, for example for the purpose of immobile persons, several technological variants on theprinciple of hydraulic scissors with a drive outside the pool are currently being used on the principleof the motion technology using ropes and rollers anchored to the floor of the pool with a drive locatedoutside the swimming pool, on the principle of a drive located in the design of a movable floor, on the principle of folding floor segments into a designated part of the swimming pool.

Other technological principles for the movement of parts of swimming pools include theprinciple of vertical wells mounted in the body of the swimming pool wall, where horizontaltransmission shafts are located in a swimming pool groove. These drive systems of swimming poolmovable parts are cooled and lubricated by means of water coming from an overflow groove only, and,therefore, the depth of the overflow groove is adjusted to a minimum height. lnthe groove, theoverflow from the groove is discharged at a certain height above the bottom of the groove to form the desired depth of water throughout the groove.

This, however, degrades the sense of overflow grooves as far as the accumulation of water isconcerned and greatly reduces the comfort of operating such swimming pools. With more onrush ofwater over the edge of the pool to the overflow groove, water can easily get out of this groove and intothe swimming pool area. The vertical well is located in a vertical niche, with the bottom and the upperpart thereof being supported in a bearing, which simultaneously forms the passage of the vertical wellfrom the inside of the swimming pool through the swimming pool wall into the overflow groove. ln theoverflow groove area, the vertical well is anchored via a bearing in a gearbox, which is driven throughthe gearbox by a horizontal transmission shaft. Through the passage of the vertical well through thispart of the swimming pool wall, water flows uncontrollably into the area of the external overflow groovewith water. This means that the circulation power of a pump has to be promoted in order to compensate this loss of water.

However, the uncontrolled escape of water from the swimming pool is necessary to exchangewater in the overflow channel in the event that insufficient circulation of water through the overflowedge does not ensure sufficient amount of water for lubrication and coo|ing the gearbox and bearingsof horizontal transmission shafts. This uncontrolled leakage of water through the openingsin the swimming pool wall essentially fulfills the function ofa skimmer overflow. lnthe event of afrequent and large flooding of water over the horizontal transmission shaft or the overflow groove ofthe swimming pool, expensive and treated water will leave irreversibly into a sanitary sewerage system.

Summary of the Technical Solution The object of the technical solution is to eliminate the disadvantages of the aforementionedproblems concerning swimming pools or basins with movable floors. This object is accomplished by atechnical solution, the essence of which consists in that the drive, which assures the movement of the movable floor of the swimming pool, is deposited in the swimming pool interior space. lt is preferred that the drive which provides the movement of the movable floor of theswimming pool, which is located in the interior space of the swimming pool, is situated in the same embodiment in the two opposing walls of the swimming pool.

The drive which provides the movement of the movable floor of the swimming pool is either ahorizontal transmission shaft which is coupled, on the one hand, via a seal with an engine which islocated outside the interior space of the swimming pool, and, on the other hand, via a gearbox with atleast one vertical screw shaft, or an engine directly connected via a gearbox with each of the vertical screw shafts.

The horizontal transmission shaft is mounted in guide bearings anchored to the wall of thehorizontal well of the swimming pool, and the vertical screw shafts are mounted in bearings anchoredto the vertical well structure. Awall or lid of the swimming pool horizontal well is provided withperforating holes for connecting the inside area of the swimming pool and the horizontal well. The topof the horizontal well lid of the swimming pool does not reach the height of the overflow edge of the overflow groove.

The vertical screw shaft is connected to a boom that moves in a vertical gap of the vertical shaft lid and is in contact with the movable floor of the swimming pool.

The horizontal transmission shaft is thus not located in the overflow groove of the swimmingpool but inside the swimming pool. More precisely in a horizontal well or niche located in the swimming pool wall in the upper part thereof. lt is sometimes advantageous to place this well as close as possible to the overflow edge.Sometimes it may be advantageous to place the horizontal well in a deeper part of the swimming poolwall. The horizontal well for the horizontal transmission shaft is covered with a perforated safety lidwith openings according to usual requirements and standards for the swimming pool technology. Thisensures the necessary cooling and lubricating all parts of the shaft mechanism and the gears by means of flowing water of the swimming pool.

The horizontal transmission shaft arranged in such a way according to the technical solutionallows the full effect of the overflowing grooves of the swimming pool, while through placing thetransmission shaft inside the swimming pool, a water circulation in the swimming pool is not adverselyaffected. The accumulation capability of the overflow grooves is fully functional and there occurs nounwanted and uncontrolled flood of water from the swimming pool. A swimming pool hydraulic systemthus fully assures operational critical uses, especially in the event of a sudden large water surgeacross the overflow edge of the swimming pool into the overflow groove. Furthermore, boththe horizontal transmission shaft and the vertical screw shaft are part of a single hermetic systeminside the swimming pool. The vertical screw shaft never passes through the swimming pool wall intoanother space. The swimming pool is thus hermetically sealed and there occurs no uncontrolled leakage outside the overflow edge of the swimming pool. ln swimming pools, it is possible to facilitate swimming to non-swimmers by elevating theswimming pool floor. By separating water in the swimming pool by means of a movable partition wall,two spaces with floors of different depths of water will be created. lt is also possible to provide one ofthe separate parts of the swimming pool with another water technology to achieve, for example,another water temperature in such separate swimming pool area. Placing the horizontal well of thehorizontal transmission shaft improves the gearbox lubrication and cooling and prevents uncontrolled water leakage, which is excluded by this technical solution.

The technical solution complies with the principle that no bottom supports, reinforcements orbottom-mounted mechanisms are used for floor cleaning. The floor can be operated at a speed of up to 420 mm / min.

The equipments are lubricated and cooled with water and therefore there is no risk that oil orother type of lubricant could emulsify with water in the swimming pool. The construction of the floorand screw jacks is easy to clean and therefore provides substantial savings in the consumption ofdisinfectants. The entire floor drive can be operated from a control room or from a lifeguard roomwithout draining the swimming pool. The service of the floor and lifting mechanism can be done once ayear. The bottom is designed so as to be easy to use and maintain without any additional supports of the swimming pool floor which simplifies regular daily cleaning. Water flows smoothly and evenly through the bottom and there are no recesses where dirt can collect. This means that water quality is not affected by the lifting floor.

Brief Description of the Drawings An exemplary embodiment of a movable floor swimming pool or basin is schematically illustrated in the accompanying drawings, in which: Figure 1 shows an axonometric view of a swimming pool with a horizontal transmission shaft in a horizontal well without a lid; Figure 2 illustrates the same situation as Figure 1 with the proviso that the construction opening is provided with a perforated lid; Figure 3 is a schematic cross-sectional view of the technical solution according to Figuresand 2 in the area of the vertical screw shaft; Figure 4 is an axonometric view of the swimming pool where the swimming pool movable floor and each vertical screw shaft are driven by a separate engine with a gear box without a lid; Figure 5 shows the same situation as Figure 4, with the proviso that the area where the engine and the gearbox are mounted is provided with a perforated lid; Figure 6 is a schematic cross-sectional view of the technical solution according to Figuresand 5 in the area of the vertical screw shaft; and Figure 7 is a schematic cross section of the technical solution according to Figures 4 and 5 in the area where the engine is mounted.

Detailed Description of the Technical Solution A swimming pool or liquid tank, which is for whatever reason required to have a movable floor(bottom), is provided with a required number of vertical screw shafts 2 to provide movement of theswimming pool movable floor ß by means of a boom § or similar technical means. The vertical screwshafts 2 are driven via a gearbox 2 either by a horizontal transmission shaft 1 with an engine Q locatedoutside the pool area or by at least one engine Q which is mounted within the swimming pool and drives individually each vertical screw shaft 2 by means of the gearbox å.

The drive of the swimming pool movable floor ß which provides its movement, whethercarried out by means of the horizontal transmission shaft 1 and a single engine Q, or so that eachvertical screw shaft 2 is separately provided with an engine Q, is located in the walls of the swimmingpool or tank. ln the case of a square or rectangular pool, the vertical screw shafts 2 are typicallylocated in the opposing walls of the swimming pool or tank, in small dimensions it is possible that theywill be mounted in only one wall. However, the technical solution can be fully applied to swimming pools of circular or other shapes, or to segmented pools.

All vertical screw shafts 2 are mounted in a vertical well ß which is connected to a swimmingpool interior space ß. ln the case of metal swimming pools, this connection is provided by perforating holes ß, in a lid ß of the horizontal well ß or in the wall of the horizontal well ß.

Each vertical screw shaft 2 is connected to the horizontal transmission shaft 1 via a gearbox å,thus enabling the drive of all booms § to provide a change in the position of the swimming poolmovable floor ß. The horizontal well ß with the horizontal transmission shaft 1 can be located at any height of the swimming pool wall ß, possibly even in the vicinity of its floor ä.

The movable floor ß is made of a perforated stainless steel sheet having non-slip properties.ln the case that the movable floor ß is used only in one part of the swimming pool, it may beequipped with a slide flap or a movable bridge so that nobody can get by swimming under theconstruction of the movable floor ß. The movable floor ß is made of stainless steel beams 1resistant to acids and its decking can be made of perforated stainless steel sheet roughened by 3D nopes having non-slip properties. lt is important that all these parts, i.e. the horizontal transmission shaft 1, the vertical screwshaft 2 and the gearbox 2 are positioned so as to be in direct connection with the fluid in the poolinterior space ß, since this liquid has a significant technical effect consisting in the lubrication of all the rotary parts of this construction. ln the case of a variant technical solution, each of the vertical screw shafts 2 may be provided with a separate step engine Q.

The horizontal transmission shaft 1 is mounted in guide bearings Q anchored to the horizontalwell ß of the swimming pool to prevent resonance during the rotation of the horizontal transmissionshaft 1. Further, the horizontal well ß is provided with a flange Ä with threaded anchoring openingsfor positioning and subsequently anchoring the lid ß by means of anchoring elements ß, which may be screws.

The lid 10 and /or the wall of the horizontal well E, respectively, are provided with perforatingopenings E in sufficient numbers to enable the entry and exit of circulating swimming pool water for cooling and lubrication of the gearbox å.

The vertical screw shaft 2 located in the vertical wellE is supported in the bearings Qpreferably in the lower and upper part of the vertical screw shaft 2. Bearing sleeves of the bearings §as well as the guide bearings Q are fixedly anchored to the metal structure of the vertical well E and the horizontal well E.

The lid strips Q are anchored to the vertical well E from both sides so as to form a verticalgap Q for the movement of the boom § and at the same time for cooling and lubrication of the bearing § of the vertical screw shaftThe horizontal transmission shaft 1 extends through the side wall E of the swimming pool from the area of the horizontal well E through the opening with the seal Z to the engine Q.

The wall E of the swimming pool including the area of the horizontal well E, including theoverflow edge ä, forms a hermetically functional constructional unit which is not interrupted by anytechnological or construction opening for the passage of the horizontal transmission shaft 1 or thevertical screw shaft 2. The vertical well E and the horizontal well E are thus hermeticallyinterconnected with the interior space E and water in the swimming pool. The horizontal transmissionshaft 1 and the vertical screw shaft 2 are thus separated from the fluid of another physically acting hermetic space, for example the overflow groove E.

The swimming pool with a movable floor can be also equipped with a control panel and amonitor to image the depth of the floor against the swimming pool. The control panel, including themonitor, is used to control the movement and lock of the floor. The control of the movable flooron the control panel is fixed against abuse. Further, the control panel is equipped with a safety button,which, in case of danger, shuts down the input to the drive units of the lifting mechanisms. There aremonitors in the swimming pool lobby that show the current position of the floor against the swimming pool.

Industrial Applicability This technical solution is suitable for swimming pools, relaxation pools, further for partitioninga swimming pool into two or more parts, and for platforms in swimming pools designed for immobilepersons. This technical solution can also be applied to tanks for various technical purposes, where their bottoms are required to be mobile.

List of reference numerals 1 - horizontal transmission shaft 2 - vertical screw shaft 3 - gearbox 4 - beam - bearing 6 - guide bearing7 - seal 8 - boom 9 - engine - lid 11 - anchoring element12 - vertical gap 13 - horizontal well 14 - vertical well - interior space 16 - perforating holes17 - side wall 18 - wall 19 - movable floor -floor21 - flange22 - lid strip 23 - overflow edge 24 - overflow groove

Claims

1. A swimming pool with a movable floor, wherein a horizontal well (13) and a vertical well (14)are connected to an interior space (15) of the pool and located in a swimming pool wall (18),wherein a horizontal transmission shaft (1) is mounted in the horizontal well (13) and a verticalscrew shaft (2) is mounted in the vertical well (14), wherein the horizontal transmission shaft(1) and the vertical screw shaft (2) provide movement of a movable floor (19) of the pool ,characterized in that the outer uppermost point of the horizontal well (13) forms an overflow edge (23) of an overflow groove (24), wherein a cover (10) and/or the wall of the horizontal (13) of the pool are provided with perforation openings (16). The swimming pool with a movable floor, according to claim 1, characterized in that a driveproviding the movement of the movable floor (19) of the pool comprises at least one motor (9),which is mounted outside the interior space (15) of the pool, and a~3ï_šj3_e__horizontal transmissionshaft (1), which is connected both to the motor (9) and to at least one vertical helical shaft (2) via a gearbox (3). The swimming pool with a movable floor, according to claim 2, characterized in that thehorizontal transmission shaft (1) is mounted in guide bearings (6) anchored to the wall of thehorizontal well (13) of the pool and the vertical screw shafts (2) are mounted in bearings (5) anchored to the structure of the vertical well (14). The swimming pool with a movable floor, according to claim 1, characterized in that theuppermost part of the cover (10) of the horizontal well (13) of the pool does not reach the height of the overflow edge (23) of the overflow groove (24). The swimming pool with a movable floor, according to claim 2 and 3, characterized in that thevertical screw shaft (2) is connected to a boom (8) which moves in a vertical gap (12) of the cover of the vertical well and is in contact with the movable floor (19) of the pool.