DD291367A5 - TRANSPORTABLE TOILET - Google Patents

Abstract

The invention relates to a portable toilet for camping purposes consisting of a waste tank 16 and arranged above a flushing water tank 43, each representing separate closed units. The flushing water tank 43 is provided with a collecting tray 53 whose feed pipe 48 is sealingly connected to the upper opening 9 of the waste tank 16. The upper opening 9 of the waste tank 16 can be closed by means of a rotary valve 1. According to the invention it is provided that a circular or kreisausschnittsfoermiges rotary valve blade 1 is connected to a guided through the wall of the rotary valve body 15 shaft 2 and is mounted on its aeuszeren edge 38 on a rotary valve housing located in the aeuszeren Drehschieberfuehrung. The drive of the rotary valve blade 1 is either centric or tangential. When centric drive the rotary valve blade 1 is either directly to the central shaft 2 in conjunction or, as shown in Fig. 19, via the lever 61, which engages from below into the bolt 59 of the rotary valve leaf 1. Fig. 19 {waste tank; flushing water tank; Collecting tray; Durchfuehrungsstutzen; Rotary valve; Drehschiebergehaeuse; Drive, central; Drive, tangential; Betaetigungshebel; Stub shaft; sliding ring}

Description

For this 18 pages drawings

Field of application of the invention

The invention relates to a portable Tr ilette especially for camping. Toilets of this type consist of a waste tank and a Spülwassertank arranged above it. Both containers form closed units per se. The rinsing water tank is provided with a drip tray, the grommet is sealingly connected to the upper opening of the waste tank. The upper opening of the waste tank is closed by means of a slide, so that the container can be brought separately for emptying.

Characteristic of the known state of the art

Portable toilets of the type described above have been known for some time. On the market are mainly the type "Porta Potti" of the group Thetford and the type "BIPOT" of the company FIAMMA (Italy).

The required disassembly capability of this toilet type according to the purpose of use has produced two fundamental technical problems:

1. the connection of both containers in a simple and space-saving form

2. the djchte closure of the upper opening of the waste tank by means of an easy-to-use slider

For the closure of the upper opening of the waste tank, the following solutions are known: DE-AS 1937754 includes a solution in which a slider housing is arranged on the top of the waste tank. In

this slide housing is a rotary valve (PS-PS 3369260). This consists of a kreisseklorförmifen

Rotary slide blade, which is rotatably mounted by means of an eccentrically arranged hub at a certain angle. The rotary valve blade is formed continuously without opening and can be inserted in a slot of the valve housing

so that the opening of the waste tank is released. The slide blade lies on its circumference on the

Slider housing on and presses from below against the elastic seal of the slider. The drive of the slide blade takes place

by a rod arranged on the hub.

A similar seal is described in connection with a non-collapsible toilet in US Pat. No. 3,835,479. The rotary valve according to US-PS 3369260 is originally for the closure of the drain neck of the drip tray in toilets without Waste tank has been developed. In this case, the slider housing includes a slot for the slider blade, which in the direction Hub is open at the side, since the slide blade requires a swivel range. The way of sealing) this slot

remains unsolved in US-PS 3369260. This problem is even more difficult with toilets whose waste tank is designed to be separable (DE-AS 1937754). The description of the invention makes no solution to this.

Another disadvantage of these constructions is the fact that Air actuation of the slide by γΊθ eccentric position of the Fulcrum a great effort and a complicated linkage is required. Furthermore, it is be these devices

difficult to keep the slide sheet in such a horizontal position that it is the D chtungsgummi the

Opening the waste tank is not damaged, a sufficient Anpreßpunkt is achieved, but not * ·: large frictional forces

occur.

A rotary valve with circular openings in the slide blade is the subject of US-PS 3713177. The ui: szwei circular sectors

existing rotary valve leaf is mounted centrally and is actuated by a lever. The two circular openings serve for alternately releasing the spout outlet and flushing. Regarding the closure of the

Outlet nozzle of the drip tray is a circular sector-shaped rotary valve with eccentric axis of rotation. On the slide blade presses from above the annular seal of the outlet nozzle, from below the sealing ring of the siphon. There

the disc does not swing out of the range of sealing rings and it is not intended to separate the lower part of the toilet, the tightness is ensured in any operating condition.

If the rotary valve according to US-PS 3713177 used to seal the upper opening of a separable waste tank

turn, the problems mentioned above arise again. The connection of the discharge nozzle of the drip tray requires that the slide sheet is placed below the opening of the waste tank. The lying in the plane of the slide blade

Operating lever must therefore led out laterally from the top of the waste tank through a wider slot

become.

The problems encountered with rotary valves have led to a preference for other types of closure: DE-OS 2250229 contains e.g. a guided in a curved slot from the rear to be operated in the same radius

curved slider. A separation of the waste container is not provided.

The US-PS 3801991 and DE-PS 2560205, which have become the basis of the types Porta Potti 145 to 265, see flat

rectangular slide blades that allow by reciprocating a selective closing and opening the inlet opening of the separable waste tank. It is actuated by a rod that can be pulled out to the front. Due to the nature of the operation of the slider, the slot located at the top of the waste tank is of the same width as the slider and there are no sealing problems. However, there is a risk of tilting of the slide in the

Guideway. When using the toilet, it proves to be unfavorable that the slide handle in the open state

protruding from the front. The slide handle can be pulled in any case only forward. Variants with lateral or rear push handle are not possible, as there is only limited space in the caravan. When operating it must always be countered with the other hand, it is not a one-handed operation possible.

Other constructions with hemispherical valves (US-PS 3851339) and pivotable closures (DE-OS 2703442)

have proved to be too expensive.

Object of the invention

The aim of the invention is the proper sealing of the inlet opening of the waste tank. The closure device should be able to be operated without jamming. The actuator should be easily accessible and not protrude from the front of the toilet. It should be led out in such a way from the top of the waste tank that complicated seals are avoided.

The use of mainly round, centric parts to simplify tool making and manufacturing. The number of components should be reduced.

-3- 291367 Presentation of the Essence of the Invention

  The invention has for its object to develop a rotary valve with circular or kreissektorförmigem slide leaf, which is arranged in the upper part of the waste tank, wherein the actuating element of the slide blade is led out of the waste tank in such a way that a proper seal possible in a straightforward manner is and only a small amount of force is required.

The object is achieved in that in a known circular or kreisausschnittsförmigen located in a arranged on the top of the waste tank rotary valve housing rotary valve, the rotary valve blade is connected to a wall of the rotary valve housing piercing shaft and located at its outer edge on a rotary valve housing outer rotary valve guide is mounted. In a particular embodiment, the rotary valve housing has a central circular bearing bush, in which the stub shaft of the rotary valve blade or a stub shaft of the actuating lever is rotatable and mounted by means of seals.

In a special variant of the stub shaft of the rotary valve blade has on the bearing bush an upper guide, which is provided with a sliding ring. Likewise, the rotary valve blade is mounted at its outer edge on a sliding ring as a lower guide.

In another embodiment, the rotary valve blade is formed as a circular ring or circular ring piece and has at the bottom a pin of circular or annular cross-section, engages in the bottom of a matched bearing, which is connected by a lever with the rotary valve housing piercing shaft. The annular or annular rotary valve leaf has an outer and an inner rotary slide guide, in which the edges of the rotary valve blade are mounted in the region of the opening of the waste tank from below and to the side, outside this area from below, laterally and from above.

The rotary valve blade or the lever are connected at its stub shaft with the actuating lever. The connection takes place i.a. by phasing the nested stub shafts and a screw or the stub shaft of the actuating lever is divided into slots and elastic webs, which have a θγΙ ^ θπθί lower edge, while the stub shaft of the actuating lever is provided with molded guide rails.

In the central drive of the rotary valve blade, it is also possible to form the operating lever as a discharge of the waste tank.

In another embodiment, the outer edge of the rotary valve blade with a spur gear, a control wheel or eintm worm drive is engaged, the shaft is passed through the rotary valve housing. The function is as follows:

In the state of use of the toilet, the rotary valve blade is adjusted so that its opening is aligned with the opening of the waste tank. In a circular sector-shaped rotary valve blade without opening this is swung out of the area of the inlet port. The actuation takes place in the case of a centric drive through the actuating lever, which is connected to the rotary valve leaf by the bearing bush of the rotary valve housing. In this case, the rotary valve leaf is either directly to the central shaft in conjunction or it is indirectly via the said lever, which engages from below into the bolt of the rotary valve leaf, driven. In the latter variant, there is the particular advantage that the inner bearing of the rotary valve blade can be arranged close to the edge of the opening of the waste tank regardless of the central drive and thereby problems of a possible bending of the rotary valve sheet are avoided. This also results in advantages for the replacement of the rotary valve blade and the production. In the variant with tangential drive the rotary valve blade is brought by the side-mounted actuators in the required position.

After use, the inlet opening is closed by rotation of the actuators in the opposite direction. By Hie rotary movement of the slide blade tilting can be avoided. The led out from the front actuator is easily accessible. Because the rotary motion is transmitted by elements that perform only a fixed-axis rotation, it is possible to place the rotary valve under the opening of the waste tank. In this way, the use of rotary valves in toilets of this type is technically feasible.

Compared to the operation of the rotary valve blade from a side hub of the effort is significantly reduced.

embodiments

The invention will be explained below with reference to three embodiments and with reference to the accompanying drawings.

The figures show the following representations

Fig. 1: Overall view of the portable toilet

Fig. 2: vertical section showing the lock

Fig. 3: Top view of the refuse tank with representation of the lock

Fig. 4: vertical section showing the rotary valve

5: top view of the waste tank with different positions of the axially driven rotary sliding blade FIG. 6: detail of the section according to FIG. 2 with radial and axial bearing of the rotary blade in the bearing bush of FIG

Rotary valve housing Fig. 7: Detail of the section of Figure 2 with radial mounting of the neck of the actuating lever in the bearing bush of the rotary valve housing

Fig. 8: Overall view of the portable toilet with a trained as a drain lever Fig.9: Vertical section through the waste tank of Figure 6 Fig. 10: Details 1 and 2 of the connection between the trained as a drain lever and the rotary valve leaf

with radial bearing Fig. 11 :. Sectional view of Figure 10

Fig. 12: Drive the rotary vane blade by a spur gear Fig. 13: Drive the rotary valve blade by a screw in a perspective view Fig. 14: Representation of Figure 13 in plan view Fig. 15: Drive the rotary valve blade by a bevel gear FIG. 16: Overall view of the portable toilet according to Example 4. FIG FIG. 17: top view of the waste tank according to example 4 Fig. 18: section through the toilet according to Example 4 FIG. 19: illustration of the drive of the rotary slide according to example 4 FIG. 20: section through the rotary valve housing according to example 4. FIG Fig. 21 ·: Top view of the fitting and the rotary valve guide according to Example 4 Example 1 (Figures 1 to 7) The example includes a demountable chemical toilet consisting of rinsing water tank 43 and waste tank 16, wherein the Rotary slide 1 of the waste tank ¹ 3 is adjusted by means of a centrally acting actuating lever 10.

Rinse water tank 43 consists of the upper housing shell 44, which is separated by a shaping seam 42 from the lower

Housing shell 45 is discontinued. The lower housing shell 45 contains a cutout 46 for the actuating lever 10. On the top of the flushing water tank 43 is the toilet lid 50 with the handle 52 and the bellows pump 51st In the rinse water tank 43, the drip tray 53 is arranged, the nozzle 48 protrudes downwards. The gap

between the drip tray 53 and the outer wall of the rinse water tank 43 contains the rinse water (Fig

Way removed by the bellows pump 51 and conveyed into the drip tray 53. Optionally, it is also possible (not

represented) to make the drip tray 53 as in the self-contained rinse water tank 43 usable component. At the

Bottom of the flushing water tank 43 is a circular cutout 47 for receiving the rotary valve housing 15th

and the locking ring 31 and three locking bolts 49 secured in brackets 54.

The waste tank 16 is designed at the top as a plastic counterpart of the flushing water tank 43. He is structured like that Rinse water tank 43 in the upper housing shell 17 and the lower housing shell 18, which through a parting seam 41st

detached from each other. The circular rotary valve housing 15 contains in the MiUe a bearing bushing 19 and laterally the upper opening 9 of the waste tank 16. At the front of the waste tank 16 is a recess 29 for the handle 32 of the

Locking ring 31, which simultaneously represents the handle member 21 of the waste tank 16. At the back of the waste tank 16 is provided with a spout 23 with cap 22. Next to the Rotary valve housing 15 attachment points 30 are provided for the fastening screws 35 of the locking ring 31. The connection of the flushing water tank 43 with the waste tank 16 by means of the locking ring 31. This is with three Long holes 33 provided for the fastening screws 35 and another three slots 34 for the locking pin 49. The slots 34 have through holes 36 whose diameter at least that of the heads 37 of the Locking pin 49 corresponds. The locking ring 31 slides around the rotary valve housing 15 and is by means of

the slots 33 inserted screws 35 with widened heads at the attachment points 30 in a certain

Angle rotatably mounted. In a certain position of the locking ring 31, the through holes 36 of the aligned Long holes 34 with the locking pin 49 of the flushing water tank 43 in the same manner as the opening 9 of the waste tank 16th

with the bushing 48 of the drip tray 53 and the cutout 47 on the flushing water tank 43 with the circumference of the

Locking ring 31. The outer geometry of flushing water tank 43, waste tank 16 and locking ring 31 ensures

positive locking the transmission of horizontal forces. By adjusting the locking ring 31 are the

Locking pin 49 attached to the slots 34 and lifting the flushing water tank 43 is no longer possible. The function of the toilet requires that the waste tank 16 between the use cases and the transport Tansport completely

is sealed. For this purpose, a rotary valve blade 1 is disposed within the housing 15. This one has

Circular shape and is rotatably mounted in the sleeve 19 of the rotary valve housing 15. The rotary valve sheet 1 also has a Opening 7, which brought by operation of the lever 10 with the overlying opening 9 of the waste tank 16 in alignment

can be, whereby the free flow is ensured. Fig. 2 shows different positions of the

Rotary valve blade 1. The opening of the waste tank 16 is provided in a known manner with a sealing ring 8, which extends to the bushing 48th

the collecting tray 53 presses.

For central storage of the rotary valve blade 1, the two in Figu .. ^r ..i 6 and 7 variants are provided. In Fig. 6, the stub shaft 2 of the rotary valve blade 1 in the lower region has a larger diameter than the Bearing bush 19 of the rotary valve housing 15th He stored his Abknickung 3 from below around the bushing 19, wherein to reduce friction, a slide ring 13th

forms an intermediate layer. Furthermore, the stub shaft 2 is passed through the bearing bush 19 and by means of a

Round ring 12 sealed. Above the bearing bush 19 and slidably resting on this is the actuating lever 10 with the Actuator 11 rigidly secured by snap connections 20 on the stub shaft 2. In Figure 5, the stub shaft 2 of the rotary valve blade 1 is angled downwards. The operating lever 10 is not just as in Variant 1 on the upper edge of the bearing bush ¹ 3 sliding on, but is passed as stub shaft 14 through this. The stub shaft 14 is articulated at the lower end in slots or grooves 25 and elastic webs 26, wherein the webs 26 a

have raised edge 27 which engages around the stub shaft 2, while the stub shaft 2 with integrally formed

Guide rails 28 is provided which engage in the slots or grooves 25 of the stub shaft 14 of the actuating lever 10. Both stub shafts are thus positively connected. The outer edge 38 of the rotary valve blade 1 is in both variants for forming a lower guide 4 on a Sliding ring 5, which is made of a particularly slippery plastic material. The seal ring 5 is by means Snap connections 6 are secured in the waste tank 16. Example 2 (FIGS. 8 to 10)

Example 2 differs from the first embodiment in that the actuating lever 10 additionally assumes the function of the outlet. He is therefore designed as a pipe with angled stub shaft 14. The threaded spout 23 is provided with a seal 24 and the closure cap 22.

To connect the inserted into the bearing bush 19 stub shaft 14 of the actuating lever 10 with the stub shaft 2 of the rotary valve blade 1, two variants are provided:

In the first variant, the actuating lever 10 is superimposed on the upper side of the bearing bush 19, as in FIG. 7 of Example 1, and is sealed against this with an inserted round ring 12. The connection is otherwise as in Example 1.

In the second variant, the bearing bush 19 forms an upper guide 3 for the stub shaft 2 of the rotary valve blade 1, which is provided with a sliding ring 13. The side of the stub shaft 2 through the bushing 19 and au. Stub shaft 14 of the actuating lever 10 enclosed and sealed by two round rings 12 in the round ring receptacles 39. The connection of the stub shaft 2 with the stub shaft 14 takes place in the manner already described.

The embodiment of Example 2 has the advantage that the spout is designed to be pivotable.

Example 3

Example 3 shows in the figures 12 to 15 variants in which the slide sheet 1 is driven at its periphery. 12 represent a variant with a spur gear 56, FIGS. 13 and 14 show a variant with worm drive 40, and FIG. 15 represent a variant with bevel gear drive 55. The shafts 57 of the drives 40, 55, 56 are sealed by the housing of the waste tank 16 guided.

In the other details, these toilets are designed analogously to Example 1.

The toilets in the described embodiments consist of relatively few components compared to similar products. The use of mainly round, centric parts considerably reduces the effort involved in tool construction and production.

Example 4 (Figures 16 to 21)

A variant of Example 1 with modified rotary valve and changed locking is shown in Example 4:

The rinsing water tank 43 is provided on its underside with a circular cutout 47 (FIG. 16) which, in contrast to FIG

Example 1 is adapted directly to the circular rotary valve housing 15. Over a certain angle of the circumference, the rotary valve housing 15 contains a recess 67 (FIG. 17) for receiving the circular ring piece 31, d. h., It is not the entire circumference of the rotary valve housing 15 comprehensive locking ring used, but only a sector of this ring. This Kreisringstück31 is otherwise held in the same way by the latch mounting 30 and fixing screws 35 which are guided through the slots 33, the waste tank 16. For free movement of the latch handle 32, the flushing water tank 43 has a plastic cutout 46 and the waste tank 16 has a plastic recess 29 which simultaneously provides access to the actuating element 11 of the actuating lever 10 of the rotary valve 1 (FIG. 18). The circular ring piece 31 is provided at its free end with a slot 34, the through hole 36 in a certain locking position, the locking pin 49 of the flushing water tank 43 releases. The locking bolt 49 obliquely opposite the tank connection 70 is located with your counterpart 69 on the waste tank.

The rotary valve housing 15 has on its upper side an opening which is bordered by the fitting 65 fastened with screws 68 (FIG. 20). This fitting 65 forms on the one hand, the bearing bush 19 for the axial drive of the rotary valve blade 1, on the other hand, the holder for the guide member 66 of the rotary valve blade 1 and for the sealing ring 8. ' The rotary blade 1 is formed as a section of a circular sector (Fig. 19). It has like the rotary valve leaf of Examples 1 to 3, an outer edge 38, but also an inner edge 63, which also forms the cutout of a circle and at the bottom of a bolt 59th

The guide member 66 forms the inner rotary valve guide 62 and the outer rotary valve guide 4 (Fig.21). In the area

the opening 9 of the waste tank 16, the rotary valve leaf is guided laterally and from below, while it presses up against the sealing ring 8. In addition to the opening 9, upper guide rails are also present on the guide element 66.

The displacement of the rotary valve blade 1 is effected by a pivotably mounted in the bearing bush 19 pivot lever 61st

This stuck with his touched stub shaft 2 in the stub shaft 14 of the actuating lever 10 (Fig.20). Both stub shafts are rigidly connected to each other by the construction of the stub shaft 2 and the adapted shape of the stub shaft 14 and by the screw 64, while the stub shaft 14 can be rotated on its outer surface in the bearing bush 19. The pivot lever 61 has at the outer end of a bearing 60 which includes the bolt 59 of the rotary valve blade 1 so that it can be pivoted within the guide member 66.

All guided through the housing of the waste tank elements are provided with circular ring seals 12.

Claims (12)

1. Portable toilet, consisting of a waste tank and a rinse water tank, wherein the bushing of Spülwasserertanks is fitted in the upper opening of the waste tank and on the top of the waste tank, a rotary valve housing with a circular or circular shaped about a rotary valve housing located in the axis pivotable flat rotary valve leaf a pivotable under the inlet opening of the waste tank opening or as herausschwenkbaren from the region of the inlet opening circular sector, characterized in that the circular or kreisausschnittsförmige rotary valve leaf (1) with a wall of the rotary valve housing (15) piercing shaft (2,14,57 ) is connected and at its outer edge (38) on a in the rotary valve housing (15) located outer rotary valve guide (4) is mounted. 2. Apparatus according to claim 1, characterized in that the rotary valve housing (15) has a central circular bearing bush (19), in which the stub shaft (2) of the rotary valve blade (1) or the stub shaft (14) of the actuating lever (10) rotatable and is mounted by means of seals (12). 3. Apparatus according to claim 1 and 2, characterized in that the stub shaft (2) of the rotary valve blade (1) on the bearing bush (19) has an upper guide (3). 4. Apparatus according to claim 3, characterized in that the upper guide (3) is provided with a sliding ring (13). 5. Apparatus according to claim ^, characterized in that the rotary slide blade (1) is mounted on its outer edge (38) on a sliding ring (5) as the lower guide (4). 6. Apparatus according to claim 1 and 2, characterized in that the rotary slide plate (1) is formed as a circular ring or circular ring piece and at the bottom has a pin (59) of circular or kreisringförmigem cross-section, in the bottom of an adapted bearing point (60) engages, which by a lever (61) with the rotary valve housing (15) piercing shaft (2) is connected. 7. Apparatus according to claim 1,2 and 6, characterized in that the annular or circular ring-shaped rotary valve blade (1) has an outer rotary valve guide (4) and an inner rotary valve guide (62), in which the edges (38,63) of the rotary valve leaf (1) in the region of the opening (9) of the waste tank (16) are stored from below and laterally, outside this area from below, laterally and from above. 8. Apparatus according to claim 1 and 2 and 6, characterized in that the rotary valve leaf (1) or the lever (b1) on the stub shaft (2) with the actuating lever (10) are connected. 9. Apparatus according to claim 8, characterized in that the connection by phasing the nested stub shafts (2,14) of the rotary valve blade (1) or the lever (61) and the actuating lever (10) and a screw (64). 10. The device according to claim 8, characterized in that the stub shaft (14) of the actuating lever (10) in slots (25) and elastic webs (26) is articulated having a raised lower edge (27) during the stub shaft (2) of the rotary valve blade (1) corresponding to the slots (25) provided with molded guide strips (28) is _% t. 11. The device according to claim 1 and 2, characterized in that the actuating lever (10) is designed as a drain of the waste tank (16). 12. The device according to claim 1, characterized in that the rotary valve housing (15) of the shaft (57) with an egg outer edge (38) of the rotary valve blade (1) jn engaged spur gear (56), bevel gear (55) or worm drive ( 40) is pierced.