DE102022103781A1 - Bait holding device and road drain - Google Patents

Abstract

The invention relates to a bait holding device with a tubular bait station (12) which is designed with a feeding chamber pipe section (28) which is adjoined on the one hand by a bait chamber pipe section (30) which can be tightly closed or closed, and to which on the other hand, an entry pipe section (36), with axes (40, 42) of the bait chamber pipe section (30) and the entry pipe section (36) being approximately parallel to one another and perpendicular to an axis (44) of the feeding chamber pipe section (28) characterized in that the bait station (12) is held or secured in a pit insert (14) adapted to be inserted and supported in a pit (4) of a road gully (1) or the like.

Description

The invention relates to a bait holding device according to the term of patent claim 1 and a road gully designed with such a bait holding device.

Rat bait stations are for example from the European patent application EP 3 785 539 A1 of the co-applicant Vollack and have an approximately tubular structure with a feeding chamber pipe section, which on the one hand is connected to a bait chamber pipe section and on the other hand to an entry pipe section. When installed in a manhole, the feeding chamber pipe section is arranged approximately in the horizontal direction, while the two mutually offset bait chamber and entry pipe sections are oriented approximately in the vertical direction.

Rat bait stations of this type are usually installed in the manhole inlet using brackets and therefore require a corresponding manhole cross-section, so that they are not suitable for street gullies. However, it is becoming more and more common that rats also use these road drains as traffic routes and therefore cannot be held back by the rat bait stations in the sewer manholes.

In contrast, the invention is based on the object of creating a bait holding device which is also suitable for use in road gullies. The invention is also based on the object of providing a road gully with an effective bait holding device.

This object is achieved with regard to the bait holding device by the features of patent claim 1 and with regard to the road gully by the features of the independent patent claim 19 .

Preferred embodiments of the invention are the subject matter of the dependent claims.

The bait holding device according to the invention has a bait station which is designed with a feeding chamber pipe section which is adjoined on the one hand by a bait chamber pipe section which can be tightly closed or closed to the outside, in particular upwards. On the other hand, an entry pipe section is attached to the feeding chamber pipe section, the axes of the bait chamber and the entry pipe section being arranged approximately parallel to one another and perpendicular to an axis of the feeding chamber pipe section.

In the case of the bait holding device according to the invention, the bait station described above is arranged at least in sections in a shaft insert which, in terms of dimensions and geometry, is designed to be used in a road gully and supported there. The shape of the shaft insert is preferably in the form of a bush all the way around or in the form of a bucket with an open bottom. The dimensions of the shaft insert are chosen, for example, so that it can be exchanged for a commonly used sludge bucket of the road gully. The bait station is attached to the well insert with at least one suitable fastener.

The support according to the invention of the shaft insert of the bait holding device in the shaft of the road gully is preferably generated by a shaft insert-side system on an outer circumference or on an upper edge of the shaft insert, wherein the shaft insert-side system can be supported on a road gully-side system. The supporting direction is preferably in the direction of gravity. The bait holding device according to the invention is thus secured against falling into the shaft and can easily be lifted up and out of the shaft at any time.

The abutment on the shaft insert side can be formed, for example, by a collar or a bevel or a projection or an overhang or a step on the outer circumference or on the upper edge of the shaft insert.

The system on the gully side can be formed by a circumferential inclined shoulder or a projection or an overhang or a step on the inner circumference of the shaft.

The at least one suitable fastener may include first and second fasteners. The first fastener secures the bait hold tubing section to the well liner, while the second fastener secures the boarding hold tubing section to the well liner.

Because of the angled position of the three pipe sections relative to each other, preferably the entry pipe section as a connection to the feeding chamber pipe section and the feeding chamber pipe section as a connection to the bait chamber pipe section each have an integrally formed curved pipe section.

In a particularly preferred embodiment, the bait room pipe section is designed so that it cantilevers above an upper inlet level of the well insert. This makes it easier for an affected person to fill the bait space pipe section. Preferably, a distance between the top of the cover of the bait station and the underside of the manhole cover is at most 1.5 times the height of the cover.

In this case, it is particularly preferred if the access pipe section is guided downwards through the bottom of the shaft insert, which is open in sections. This facilitates access for the affected rat.

In a particularly preferred embodiment, the floor is designed as a kind of peripheral edge that is wave-shaped in order to make it easier for the rats to get on and off. The rats can each support themselves via a trough on the adjacent crest of the peripheral edge in order to reach the area of the bait station.

The access of the rats to the bait is further facilitated if the bait station is provided with an access part on the end piece protruding downwards from the aforementioned bottom of the shaft insert, which delimits an access opening for the rat and on which a projecting access ramp is formed, which leads to the access opening.

Such an access ramp can be formed, for example, by an angular cut in the tube profile of the access part or the bait station.

It is particularly preferred if the boarding ramp is curved in accordance with the tube diameter of the boarding part.

The entry and descent of the rats to and from the bait station is further assisted when the boarding part is arranged in the horizontal direction. In this case, the boarding ramp can be referred to as a boarding ledge.

Depending on the shaft cross-section, the cross-section (floor plan) of the shaft insert can be rectangular, square or rounded. In a first exemplary embodiment, the shaft insert can have a cross section (plan view) with two parallel sides and two sides rounded in an arc shape. In a second exemplary embodiment, the shaft insert can have an approximately circular cross section (outline).

In one embodiment, the diameter D of a pipe section of the bait station is at least 1/4, preferably at least 1/3, of the clear width W of the shaft insert.

In one embodiment of the invention, a condensate drain is provided in the area of the feeding space, so that condensate can drain from this and the feeding space can thus be kept in an optimal condition for the rat.

The entrance for the rat is further optimized if climbing aids are provided in the access area to the feeding area, which are designed, for example, in sections like steps or ladders. This additional climbing aid can be attached to the boarding part in a non-positive and/or positive manner, also detachably.

In the case of very deep shafts, the ascent aid can be designed with a ladder or stairway, which is attached to the bait holding device, preferably detachably, in the approach area. This additional ascent aid can supplement the ascent aids integrated into the bait holding device.

A ladder-like additional climbing aid can be provided with support rails which extend along the climbing area and between which step rails/cross rails are arranged in the transverse direction. In a particularly stiff and lightweight design, a central spar is provided between two outer support spars.

This ladder-like additional climbing aid can be made of metal or plastic.

In a further exemplary embodiment of the invention, a feed collecting edge is provided in the area of the feeding space.

• 1 einen schematischen Querschnitt eines erfindungsgemäßen Straßenablaufs mit einer erfindungsgemäßen Köderhaltevorrichtung;
• 2 die Köderhaltevorrichtung gemäß 1 in einer dreidimensionalen Darstellung;
• 3 einen Längsschnitt der Köderhaltevorrichtung gemäß 1; 4 eine Draufsicht auf die Köderhaltevorrichtung gemäß 2; 5 eine Seitenansicht von der Einstiegsseite her auf die Köderhaltevorrichtung gemäß 2;
• 6 ein weiteres Ausführungsbeispiel einer Köderhaltevorrichtung für einen Straßenablauf mit rundem Querschnitt;
• 7 eine Draufsicht auf die Köderhaltevorrichtung gemäß 6;
• 8 ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Köderhaltevorrichtung und
• 9a, 9b Ansichten eines Ausführungsbeispiels einer Köderhaltevorrichtung mit einer zusätzlichen Aufstiegshilfe.

A preferred exemplary embodiment of the invention is explained in more detail below using schematic drawings. Show it:

• 1 a schematic cross section of a road gully according to the invention with a bait holding device according to the invention;
• 2 the bait holding device according to 1 in a three-dimensional representation;
• 3 according to a longitudinal section of the bait holding device 1 ; 4 a top view of the bait holding device according to FIG 2 ; 5 a side view from the entry side of the bait holding device according to FIG 2 ;
• 6 another embodiment of a bait holding device for a road gully with a round cross-section;
• 7 a top view of the bait holding device according to FIG 6 ;
• 8th a further embodiment of a bait holding device according to the invention and
• 9a , 9b Views of an embodiment of a bait holding device with an additional ascent aid.

In 1 a cross-section of a street or gutter drain/inlet 1 is shown schematically, which is designed with a bait holding device 2 according to the invention.

the inside 1 road gully 1 shown has a shaft 4, which opens into a sewer. The shaft 4 is expanded stepwise towards the surface and closed by means of a manhole cover 6 . In the transition to the step-shaped widening 8 of the shaft 4 there is a circumferential inclined shoulder 10 on which a shaft insert 14 of the bait holding device 2 is supported and which dips into the actual shaft 4 with a relatively precise fit. In the illustrated embodiment, the shaft 4 is rectangular with rounded end faces so that, as explained in more detail below, the shaft insert 14 of the bait holding device 2 is designed with at least parallel side walls that are dimensioned according to the dimensions of the shaft 4.

As will be explained in more detail below, the bait holding device 2 has a bait station 12 in which a bait for the rat or other animal is arranged.

The basic structure of such a bait station 12 is known from the prior art mentioned at the outset, so that only the details necessary for understanding the invention are explained here.

The bait station 12 is as shown in FIG 1 received in the shaft insert 14, which is inserted into the shaft 4. As mentioned, the outline of this shaft insert 14 is adapted to the cross-sectional profile of the shaft 4. In the exemplary embodiment shown, the outline of the shaft insert 14 is essentially rectangular with rounded end faces. This will be discussed in more detail below.

According to the three-dimensional representation of the bait holding device 2 in 2 the container-shaped shaft insert 14 has two parallel side walls 16, 18 which are connected to one another via slightly curved end walls 20, 22. The walls 16, 18, 20, 22 define an interior space 24 in which the bait station 12 is received. This is connected to the shaft insert 14 via two suitable fastening means 26, for example screws and clamping sleeves. The structure of the bait station 12 can be seen quite clearly from the sectional view according to FIG 3 .

Accordingly, the basic structure of the bait station 12 corresponds to that of the rat bait station in the prior art described above. The bait station 12 thus has a central feeding space tube section 28 which runs approximately horizontally and which runs approximately in the horizontal direction and is arranged essentially within the interior space 24 of the shaft insert 14 . Towards the top (view in 3 ) A bait space tube portion 30 is attached to the feeding space tube portion 28 , which protrudes from the shaft insert 14 and is tightly closed by means of a cover 32 . This stands beyond the level defined by the in 3 overhead peripheral edges of the shaft insert 14 are formed. Thus the lid 32 is directly under the (in 1 shown) manhole cover 6 arranged. However, initial tests have shown that it is even better if the cover is flush with an upper edge of the shaft insert 14 or, most advantageously, even remains below the upper edge of the shaft insert 14. This not only makes assembly easier, but the manhole cover 6 then no longer rests on the cover 32, so that the manhole cover 6 closes/closes better.

The bait (not shown) can be attached to the cover 32 so that the bait can be replaced by lifting the manhole cover 6 and unscrewing the cover 32 .

An entry pipe section 36 , which extends through a base 38 of the shaft insert 14 , extends downward following the feeding chamber pipe section 28 . The bottom 38 can also be arranged significantly lower, as a result of which the volume of the bucket-like shaft insert 14 becomes larger. The two axes 40, 42 of the pipe sections 30, 36 are offset parallel to one another. The axis 44 of the feeding chamber pipe section 28 runs transversely thereto, preferably in the horizontal direction.

on the in 3 According to the invention, a boarding part 46, which is also designed as a tubular structure, is fastened to the lower end section of the entry pipe section 36. A boarding ramp 48 is cut free by an angular section of this tube profile, which is in the installed position and also in the illustration according to FIG 3 extends approximately in the horizontal direction and according to the three-dimensional representation in 2 is curved according to the tube diameter, so that the rat has a very comfortable, guided access / entry into the bait station 12 according to the invention. The angular section is designed in such a way that the side walls of the boarding ramp 48 become the entry pipe section increase toward 36. Since the boarding ramp of the exemplary embodiment shown is horizontal in the direction of boarding, it can also be referred to as a boarding projection.

4 shows a plan view of the bait holding device 2 according to FIG 2 and 3 . This plan view shows that the base 38 is only formed along the peripheral section, i.e. in the transition area to the side walls 16, 18 and the end walls 20, 22, and has a wavy section or inner edge, so that a large number of wave troughs 50 and crests 52 are formed. This makes it easier for the rat to climb into the interior 24 of the shaft insert 14, the rat climbing, for example, along a trough 50 to the top (visible in 4 ) of the crest 52 can reach. Of course, instead of this wavy cut, a rectangular cut or some other geometry can be chosen that makes it easier for the rat to access it.

However, the clear width between the bait station 12 and the inner peripheral wall of the shaft insert 14 should be selected such that the rat can pass through and that the waste water flowing through the manhole cover 6 can flow into the shaft 4 . In principle, however, it is preferred to motivate the rat to get into the bait station 12 via the access part 46 with the access ramp 48 .

In the illustrated embodiment, the multiply curved bait station 12 is formed from a plurality of tube sections 28, 30, 36, 46 which are materially or positively connected or otherwise connected, the diameter of which can be, for example, approximately 130 mm. The overall width of the bait station 12 in the direction of the axis 44 of the feeding chamber pipe section 28 is selected such that the bait station 12 can be inserted into the shaft insert 14 with a relatively precise fit using the two fastening means 26 . In one embodiment, it is preferred if the diameter of the pipe sections 28, 30, 36 is more than a quarter, preferably more than a third, of the clear width W of the shaft insert 14 (see view in 3 ) amounts to.

5 shows a side view of the bait holding device 2 according to the invention. It can be seen quite clearly in this view that on the one hand the cover 32 and on the other hand the entry pipe section 36 and the access part 46 attached to it protrude upwards or downwards out of the shaft insert 14 and are therefore easily accessible . Since the lid 32 is close to the (in 1 shown) manhole cover 6 is arranged, it can be reached and opened by one person from above and, for example, be equipped with new bait.

According to the view 5 It is also clear that the access ramp 48 which has been cut free is curved in accordance with the diameter of the access part and correspondingly also of the access pipe section 36 and thus leads the rat in the direction of the access opening 56 .

6 shows a variant in which the manhole insert 14 is cylindrical and is therefore intended for use in a round road gully/manhole. In this exemplary embodiment, too, the base 38 of the cylindrical shaft insert 14 is designed with a wavy cut of the base 38 in order to make it easier for the rat to gain access. This wavy cut then also serves as a boarding aid, similar to the boarding ramp 48.

In both exemplary embodiments, a collar 54 ( 6 ) or 54a, 54b, which simplifies the assembly, in particular the insertion, of the bait holding device 2 into the shaft 4.

In the 8th a bait station 12 is shown in sections, which can be used in a bait holding device 2 according to the invention. The basic structure corresponds to the basic structure of the bait stations 12 described above 8th shown bait station 12 is designed with a bait space tube section 30, an adjoining feeding space pipe section 28 curved to the horizontal and an adjoining access pipe section 36, whereby in this variant an access part 46 is not angled in sections in the horizontal direction, but in the vertical direction runs.

In turn, a cover 32 is placed on the bait space tube section 30, which closes off the bait station 12 at the top.

In the transition area between the feeding chamber pipe section 28 running approximately in the vertical direction and the entry pipe section 36, a channel-shaped condensate drain 58 is provided in the exemplary embodiment shown, via which condensate that forms in the feeding chamber pipe section 28 can drain.

As in 8th shown, a circumferential edge projecting in the radial direction is also formed in the feeding space, which forms a feed collecting edge 60 . This prevents the bait or bait fragments from escaping the feed Space pipe section 28 can be pushed out.

The feed collecting edge 60 is formed by a ring 62 inserted into the bait station 12 in the area of the feeding chamber pipe section 28, which is attached to the inner peripheral wall of the bait station 12, and in which the channel-shaped condensate drain 58 is also provided, so that the drain does not flow through the radially projecting feed collecting edge 60 is obstructed. This condensate drain 58 can also be formed by interrupting the ring 62 .

In the entry pipe section 36 are - according to in 8th illustrated embodiment - two rising edges 64, 66 formed, which facilitates the rat's access. These climbing edges 64 , 66 are formed by climbing rings 68 , 70 inserted into the inner peripheral wall of the entry pipe section 36 . These rings and the ring 62 are connected to the respective pipe sections, for example by gluing or welding.

As stated, in the in 8th In the exemplary embodiment illustrated, no horizontal boarding ramp 48 is formed, but the boarding pipe section 36 opens out with a boarding opening oriented in the vertical direction. Of course, such climbing aids and a feed collecting edge 60 or a condensate drain 58 can also be implemented in the variants of a bait holding device described at the outset.

In the representation according to 8th a bait 72 is also shown, which can be suspended from the cover 32, for example. This suspension in the 8th identified by the reference numeral 74. Such suspensions 74 can of course also be used in the exemplary embodiments described above. In this way it is possible to remove or replace the bait 72 simply by opening the cover 32 . The bait can be removed/exchanged using a preferably telescopic gripper.

For the rest, the exemplary embodiments according to FIG 6 until 8th the one from the 1 until 5 , so that further explanations are superfluous.

In the case of very deep shafts, it can be problematic for the rat to enter the boarding area, in particular the opening of the entry pipe section 36 with the horizontal boarding ramp 48 according to FIG 1 until 6 or the vertically oriented manhole pipe section 36 according to FIG 8th to reach. In these cases, as in the 9a , 9b shown, an additional climbing aid 76 can be attached to the entry pipe section 36 . In the exemplary embodiment shown, this climbing aid 76 is designed in the manner of a ladder, with support bars 78, 80 extending from the area of the water surface to the access part 46 or to the entry pipe section 36, between which a large number of transverse bars 82 (only one in the 9a , 9b provided with a reference number) are arranged. These transverse beams 82 serve as steps, so to speak, and thus enable a comparatively comfortable ascent to the bait holding device 2. A central beam 84 is also provided between the two outer support beams 78, 80 in the exemplary embodiment shown for reinforcement. At the in the 9a , 9b illustrated embodiment, the distance A of the support beams 78, 80 widens towards the boarding ramp 48 of the boarding part 46. The distance A can also be made constant, so that the support beams 76, 78 are arranged parallel to one another.

Of course, a ladder-like climbing aid 76 can also be used in the exemplary embodiment according to FIG 8th be attached to the vertically extending boarding pipe section 36.

In the exemplary embodiment shown, an end section 86 of the climbing aid 76 extends into the boarding pipe section 36, specifically into the area of the boarding ramp 48, with the climbing aid 76 then being angled in this area in accordance with the angle of the boarding pipe section 36, so that for the Rat the transition to the area of the entry pipe section 36 is simplified.

The climbing aid 76 is fastened, for example, in a non-positive or materially bonded manner by means of clamping or gluing. In the exemplary embodiment shown, the ascent aid 76 is fastened, preferably detachably, to the boarding ramp 48 via two clamps 88 .

The ladder-like climbing aid 76 can be made of wire or a plastic, for example. In principle, a molded part with such a lattice structure can also be used. Instead of a ladder-like climbing aid 76, other constructions, such as a stair-like climbing aid, can also be used. In principle, it can also be sufficient to simply provide ropes as a climbing aid.

A bait holding device and a road gully with such a bait holding device are disclosed.

Reference List

1

road gully

2

bait holding device

4

shaft

6

manhole cover

8th

extension

10

shaft-side system / inclined shoulder

12

bait station

14

shaft insert

16

sidewall

18

sidewall

20

end wall

22

end wall

24

inner space

26

fasteners

28

feeding chamber pipe section

30

Bait Room Pipe Section

32

Lid

34

peripheral edge

36

entry pipe section

38

Floor

40

axis

42

axis

44

axis

46

boarding part

48

boarding ramp

50

trough

52

wave crest

54

Shaft insert-side system / collar

56

manhole

58

condensate drain

60

feed collecting edge

62

ring

64

ascent edge

66

ascent edge

68

ascension ring

70

ascension ring

72

bait

74

suspension

76

ascension aid

78

support beam

80

support beam

82

cross bar

84

center spar

86

end section

88

clamp

A

Spacing of the support beams

D

diameter

W

clear expanse

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• EP 3785539 A1 [0002]

Claims (10)

Bait holding device with a tubular bait station (12) which is designed with a feeding chamber pipe section (28) which is adjoined on the one hand by a bait chamber pipe section (30) which is tightly closable or closed, and on the other hand an entry pipe section (36), with axes (40, 42) of the bait space pipe section (30) and of the entry pipe section (36) being formed approximately parallel to one another and perpendicular to an axis (44) of the feeding space pipe section (28) , characterized characterized in that the bait station (12) is held or secured in a pit insert (14) adapted to be inserted and supported in a pit (4) of a road gully (1) or the like. bait holding device Claim 1 , the supportability of the shaft insert (14) in the shaft (4) being realized on the one hand by a shaft insert-side contact (54, 54a, 54b) and on the other hand by a shaft-side contact (10) and/or having fastening means (26) for fixing the position of the bait station (12) in the shaft insert (14) and/or wherein the bait room pipe section (30) protrudes beyond an inlet level of the shaft insert and/or wherein the entry pipe section (36) is guided through a base (38) of the shaft insert and/or wherein the base (38) is designed as a peripheral edge with a wavy structure and/or wherein an access part (46) is formed on an end section of the access pipe section (36) protruding from the base (38) of the manhole insert (14) or is attached, which delimits or has an access opening (56), and on which a projecting access ramp (48) is formed, which leads to the access opening (56) and/or weave i the boarding ramp (48) is formed by an angular section of the tube profile of the boarding part (46) or the boarding tube section (36) and/or wherein the boarding ramp (48) corresponds to the tube diameter of the boarding part (46) or the boarding tube section (36 ) is curved and/or wherein the boarding ramp (48) is arranged approximately in the horizontal direction in the installed position. bait holding device Claim 1 or 2 , wherein the shaft insert (14) encompasses the bait compartment pipe section (30) and/or the diameter (D) of the bait station (12) is at least a quarter, preferably at least a third, of the inside width (W) of the shaft insert (14). Bait holding device according to one of the preceding patent claims, with a condensate drain (58) in the area of the feeding chamber pipe section (28). Bait holding device according to one of the preceding patent claims, with a climbing aid (76) in the area of an entry pipe section (36). bait holding device Claim 5 , wherein the climbing aid (76) is designed like a ladder with support beams (78, 80) and transverse beams (82) and is non-positively and/or positively, preferably releasably, attached to the mouth area of the entry pipe section (36). bait holding device claim 6 , whereby a distance (A) of the support beams (78, 80) increases towards the entrance pipe section (36). Bait holding device according to one of the preceding patent claims, with a feed collecting edge (60) in the area of the feeding chamber tube section (28). Bait holding device according to one of the preceding claims, wherein a condensate drain (58) and/or a feed collecting edge (60) and/or a rising edge (64, 66) are each formed on a ring structure which is inserted in a projecting manner into the bait station 12. Road gully, in particular side gully, with a bait holding device (2) according to one of the preceding patent claims.

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