Vibrating plate with water sprinkling system

Abstract

The invention relates to a vibrating plate for soil compaction, with: an upper mass (1); a lower mass (2) that can be moved relative to the upper mass (1) and has a vibration exciter and a soil contact plate (3) for transferring a vibration generated by the vibration exciter to a soil to be compacted; a water tank (4) for storing water; a water tank holder for supporting the water tank (4); a sprinkler device (5) for discharging water such that the discharged water reaches the region under the soil contact plate (3); and a line connection (6) between the water tank (4) and the sprinkler device (5) for feeding water from the water tank (4) to the sprinkler device (5); wherein the water tank (4) is supported in a releasable manner by the water tank holder; and wherein the water tank (4) can be manually released from the water tank holder and can thus be disconnected from the line connection (6).

Description

[0001] Vibration plate with water sprinkling system

[0002] The invention relates to a vibrating plate for soil compaction. In particular, the invention relates to a vibrating plate with a water sprinkler system, with which water can be applied to the surface of a subsoil to be compacted, e.g., an asphalt layer, during a soil compaction process.

[0003] Vibration plates for soil compaction are well known and are often also referred to as vibratory plates. A vibration plate has an upper mass and a lower mass that is movable relative to the upper mass. On the lower mass, a vibration exciter and a ground contact plate are provided for transmitting a vibration generated by the vibration exciter to the soil to be compacted. A drive, e.g. an internal combustion engine or an electric motor, can be provided on the upper mass, with which the vibration exciter on the lower mass can be driven. In another design, the vibration exciter is driven by an electric motor arranged directly on the lower mass. The ground contact plate stands on the soil to be compacted and transmits the vibration generated by the vibration exciter into the soil.

[0004] Such vibrating plates are used, among other things, for compacting gravel, paving stones, etc. They can also be used for compacting and smoothing asphalt. To achieve a good asphalt surface, it is common practice to install a water sprinkler system on the vibrating plate. The water sprinkler system has a water tank on an element of the machine that is decoupled from the vibrations, e.g. on the upper mass or a protective frame provided on the upper mass. In addition, a sprinkler bar can be provided in the area of ​​the ground contact plate to distribute the water so that the water can reach the underside of the ground contact plate as far as possible. The sprinkler bar can be mounted either directly on the lower mass or on the water tank.

[0005] If the sprinkler bar is mounted on the base, it is connected to the water tank via a hose. The sprinkler bar can be attached close to the ground contact plate or directly to the ground contact plate to ensure targeted and economical water application to the area to be wetted. If the sprinkler system comprising the water tank and sprinkler bar is not required, the water tank, together with the sprinkler bar and the connecting hose, is detached from the rest of the vibrating plate using a tool and removed. A hose, bucket, canister, or watering can, for example, can be used to fill the water tank attached to the vibrating plate. These tools must be kept ready at the work site if necessary.

[0006] In another embodiment, the sprinkler bar can be attached directly to the water tank itself. This makes it possible to remove the water tank and sprinkler bar from the vibrating plate together. However, in this embodiment, the holes on the sprinkler bar through which the water can escape are located a large distance from the area to be wetted on the ground contact plate. Targeted sprinkling is then also impossible due to the strong vibrations during vibration operation.

[0007] The invention is based on the object of providing a vibrating plate with a sprinkling system in which the disadvantages of the prior art can be avoided.

[0008] The object is achieved according to the invention by a vibration plate having the features of claim 1. Advantageous embodiments are specified in the dependent claims.

[0009] A vibrating plate for soil compaction is specified, comprising an upper mass, a lower mass movable relative to the upper mass, having at least one vibration exciter and a ground contact plate for transmitting a vibration generated by the vibration exciter to a soil to be compacted, a water tank for storing water, a water tank holder for supporting the water tank, a sprinkling device for distributing water such that the applied water reaches the area below the ground contact plate, and a line connection between the water tank and the sprinkling device for supplying water from the water tank to the sprinkling device, wherein the water tank is detachably carried by the water tank holder and wherein the water tank is manually detachable from the water tank holder and thus separable from the line connection.

[0010] The water tank with the sprinkler system and the pipe connection are part of a sprinkler system for the vibrating plate, which is used to supply water to the soil to be compacted. The sprinkler system is used to pump water into the area below the ground contact plate in order to wet the soil to be compacted, in particular the asphalt, with water during operation of the vibrating plate. The water is stored and maintained in the water tank. The water tank is detachably held in the water tank holder. The water tank holder can be arranged, for example, on the upper mass, on the lower mass, or on a protective frame, particularly on the upper mass.

[0011] The water tank can be removed or lifted manually without the use of tools, so to speak, with one simple movement, i.e., in one go, without any additional action required by the operator. This allows the operator to remove the water tank, fill it with water, and replace it on the water tank holder.

[0012] A coupling can be provided between the pipe connection and the water tank, allowing the water tank to be separated from the pipe connection. The coupling ensures a mechanically secure connection. It also enables a fluid connection, allowing water to be directed from the water tank to the pipe connection and ultimately to the sprinkler system. It can also provide the necessary sealing between the water tank and the pipe connection, as explained later.

[0013] The coupling may comprise a tank-side coupling element and a pipe-side coupling element. The two coupling elements may be coupled together when the water tank is inserted into the water tank holder. When the water tank is removed, the two coupling elements may be separated.

[0014] The coupling can be a plug-in coupling, with the tank-side coupling element and the line-side coupling element being pluggable and detachable. The two coupling elements thus form the plug-in coupling or plug-in connection.

[0015] The line-side coupling element can be provided on the upper mass, the lower mass, or the protective frame. In particular, the line-side coupling element can be held or fixed in place to ensure a reliable connection with the tank-side coupling element when the water tank is attached. The tank-side coupling element and / or the line-side coupling element can have a sealing element. The sealing element can, for example, have an annular or conical shape. The sealing element can preferably be elastic. For example, the sealing element can be designed as a rubber seal or a silicone seal.

[0016] In one embodiment, one of the sealing elements has a conical shape, while the other sealing element can have a corresponding complementary shape. For example, one sealing element can be elastic and made of rubber or silicone, while the other sealing element can be made of a harder, less elastic or non-elastic plastic or metal.

[0017] The line connection can include a hose section to compensate for relative movement between the water tank and the sprinkler system. The hose can be flexible to allow for this compensating movement. This allows the distance between the tank and the sprinkler system to be easily bridged, even if the tank and the sprinkler system are attached to different components, e.g., to the upper mass or protective frame on the one hand and to the lower mass on the other.

[0018] The sprinkling device can comprise a sprinkling bar. The sprinkling bar can extend across the width of the ground contact plate, in particular transversely to the main direction of travel of the vibrating plate. The sprinkling bar can be tubular and have openings on its underside through which the water can escape.

[0019] The water tank can have a water outlet and a valve device for opening and closing the water outlet. This allows the water outlet to be closable, for example, to remove the water tank from the water tank mount and fill it with water at a remote location. The water then collects in the water tank without any water escaping through the water outlet. The water outlet can be located in the area of ​​the tank-side coupling element.

[0020] The valve device can be designed to open and close automatically. The valve device can be automatically opened in an installed state, in which the water tank is supported in the water tank holder, while the valve device can be automatically closed in a removed state, in which the water tank is removed from the water tank holder. In this case, it is not necessary for an operator to manually open and close the water outlet. Rather, it is sufficient to insert the water tank into the water tank holder to open the valve device, allowing water to flow out. When the water tank is lifted from the holder, the valve device closes automatically.

[0021] In another embodiment, the valve device can be manually opened and closed. In this case, the operator must manually open and close the valve as needed.

[0022] Depending on its position, the valve device can allow for metering of the water supply to the sprinkler system. Accordingly, the amount of water that can be fed to and discharged from the sprinkler system can be adjusted.

[0023] In one embodiment, the valve device can comprise a cylindrical valve body. The cylindrical valve body, in an installed state in which the water tank is supported in the water tank holder, has a vertical longitudinal extension and can be rotatably mounted in the water tank about a vertical axis. The valve body can be rotated between an open position, in which the water outlet is open, and a closed position, in which the water outlet is closed. "Vertical" or "vertical axis" in this case does not necessarily mean an exactly vertical orientation, but merely a substantially vertical orientation. The vertical axis can thus also be inclined relative to an exactly vertical axis, with the vertical extension being the main extension direction of the valve body.

[0024] The valve body can extend from a bottom of the water tank to a top of the water tank, wherein the valve body can have a handle on the top of the water tank, which is accessible to an operator for manually rotating the valve body. This makes it easy for the operator to rotate the valve body using the handle and open or close the valve. The top of the water tank can be easily accessible for the operator to rotate the handle and thus the valve body. These and other advantages and features are explained in more detail below using an example with the aid of the accompanying figures. They show:

[0025] Fig. 1 is a partial sectional view of a vibrating plate with a sprinkler system and attached water tank;

[0026] Fig. 2 is an enlarged detail of Fig. 1;

[0027] Fig. 3 the arrangement of Fig. 1 , but with the water tank removed;

[0028] Fig. 4 is an enlarged detail of Fig. 3;

[0029] Fig. 5 is a front view of the arrangement of Fig. 1 with attached

[0030] water tank; and

[0031] Fig. 6 is a front view of the arrangement of Fig. 3 with the water tank removed.

[0032] Figures 1 to 6 essentially show the same vibrating plate with a sprinkler system, but in different states.

[0033] Fig. 1 shows a partial section of a vibrating plate, with part of an upper mass 1 and part of a lower mass 2 with a ground contact plate 3. Not shown in the figure is a drive, which can be provided on the upper mass 1 or on the lower mass 2, e.g., an internal combustion engine or an electric motor. Especially with an electric motor, it can be advantageous to arrange it directly on the lower mass 2.

[0034] Also not shown is a vibration exciter provided on the lower mass 2, with which the vibrations usable for soil compaction are generated in a known manner, which are introduced into the soil to be compacted via the soil contact plate 3.

[0035] Furthermore, a sprinkling system is provided, with a water tank 4, a sprinkling bar 5 serving as a sprinkling device and a line connection 6, which is partially formed by a hose 7.

[0036] The water tank 4 has a filling opening 4a on its top through which water can be let into the interior of the water tank 4. The filling opening 4a can be closed with a lid, e.g., a screw cap.

[0037] The water tank 4 is supported in a water tank holder (not shown) provided on the upper mass 1. A protective frame or cover, to which the water tank holder and thus the water tank 4 are attached, can also serve as part of the upper mass 1. The water tank holder ensures that the water tank 4 is securely and reliably attached to the upper mass even when filled, i.e., heavy.

[0038] For example, the water tank holder can have elements that correspond to or interact with elements on the water tank 4 and thus secure the water tank 4 in the water tank holder. These elements can be designed such that an operator can attach and remove the water tank from the water tank holder without tools. For example, the water tank 4 can be inserted into the water tank holder from above and placed on corresponding fastening elements that interact with complementary elements on the water tank 4. The corresponding elements can be elements for creating a frictional connection and / or a positive connection between the water tank 4 and the water tank holder, clamping elements, hooks, pins, latches, spring elements, or similar.

[0039] The sprinkler bar 5 is provided in a front area of ​​the ground contact plate 3, as seen in the main direction of movement of the vibrating plate. Sprinkler openings (not shown) are provided through which water can escape from the sprinkler bar 5, particularly downwards. The ground contact plate 3 can also have openings so that the water from the sprinkler bar 5 can ultimately reach the underside of the ground contact plate 3 and thus the surface to be wetted.

[0040] The sprinkler bar 5 can extend on the ground contact plate 3 over the entire width of the ground contact plate 3 in order to be able to distribute the water evenly over the surface of the underside of the ground contact plate 3.

[0041] The water tank 4 can be lifted from the water tank holder (not shown) and thus from the upper mass 1, as shown in Figures 3 and 4. A coupling 8 is provided between the water tank 4 and the line connection 6, at which coupling the water tank 4 can be separated from the line connection 6. The coupling 8 has a tank-side coupling element 9 and a line-side coupling element 10, as can also be clearly seen in the enlarged view of Figure 2.

[0042] The water tank 4 can thus be manually removed or lifted from the rest of the vibrating plate in a simple operation without the need for tools, allowing it to be filled with water at a different location. After the filling process, the water tank 4 can be placed with its tank-side coupling element 9 onto the line-side coupling element 10, whereupon the fluid connection between the water tank 4 and the sprinkler bar 5 is restored.

[0043] Fig. 3 shows how the two coupling elements 9, 10 can be separated from each other. This state is shown in an enlarged view in Fig. 4.

[0044] The coupling 8 is thus a plug-in coupling in which the tank-side coupling element 9 and the line-side coupling element 10 can be plugged together (as shown in Figures 1 and 2) and detachable or separable (as shown in Figures 3 and 4).

[0045] The tank-side coupling element 9 is fastened to the water tank 4 with a corresponding tank-side coupling bracket 11.

[0046] The line-side coupling element 10 is attached to the upper mass 1 of the vibration plate by means of a line-side coupling bracket 12.

[0047] The tank-side coupling element 9 has an outer cone which can be inserted into a correspondingly complementarily shaped inner cone of the line-side coupling element 10, as can be clearly seen in Fig. 2.

[0048] The line-side coupling element 10 is elastic and made of, for example, rubber or silicone. The tank-side coupling element 9, on the other hand, is made of a rigid plastic. In an alternative embodiment, the elements can also be interchanged, so that the tank-side coupling element 9 has an inner cone made of a rubber or silicone material, while the line-side coupling element 10 is made of a rigid plastic. Of course, the coupling elements 9, 10 can also be designed the other way around, with an inner cone on the tank-side coupling element 9 and an outer cone on the line-side coupling element 10. Other solutions and combinations are also possible to create a mechanically reliable and tight plug-in connection.

[0049] The figures show that the tank-side coupling element 9 and the tank-side coupling bracket 11 protrude from the underside of the water tank 4. However, it is also possible to form a corresponding hollow recess on the underside of the water tank 4, in which the tank-side coupling element 9 and the tank-side coupling bracket 11 are received to protect them. The tank 4 can then, for example, be placed on the ground with its underside without the tank-side coupling element 9 or the tank-side coupling bracket 11 protruding.

[0050] A corresponding opening 13 is provided in the line-side coupling bracket 12 to establish a fluid connection between the line-side coupling element 10 and the line connection 6. The opening 13 can be part of the line connection 6. In this way, water exiting via a water outlet 9a provided on the tank-side coupling element 9 can be guided to the sprinkler bar 5 via the line-side coupling element 10 and the line-side coupling bracket 12, as well as via the line connection 6.

[0051] The water tank 4 has a valve device 14 with a valve body 15 rotatable about its longitudinal axis. The longitudinal axis of the valve body 15 is essentially vertically oriented, but can also be slightly inclined relative to a vertical axis, as shown in the figures. In any case, the majority of the longitudinal axis extends upward.

[0052] The valve body 15 can be rotated about the vertical axis by an operator using a handle device 15a provided on the top or upper end of the valve body 15.

[0053] The valve body 15 is housed in a sleeve 16, which has openings in the form of a perforation 17 in one area. The openings or perforations 17 serve to regulate the water supply to the water outlet 9 and to filter the escaping water, in particular to prevent blockage of the downstream pipe elements and the sprinkler bar 5. Accordingly, the valve body 15 has an elongated slot 18. The valve body 15 is rotatable between a position in which the slot 18 is over the perforation 17 or the openings present there. This creates a fluid connection between the interior of the water tank 4 and the water outlet 9a on the tank-side coupling element 9, allowing water to escape.

[0054] When the valve body 15 is rotated, a position can be achieved in which the slot 18 is not positioned over the perforation 17. In this case, the openings at the perforation 17 are closed, so that no water can escape.

[0055] The valve body 15 can thus be rotated between an open position and a closed position, e.g. over an angle of 90 °, although other angles are also possible.

[0056] As can be seen in Fig. 1, the number of openings of the perforation 17 can vary, so that depending on the rotational position of the valve body 15, a different number of openings is exposed above the slot 18. Accordingly, the amount of water that can escape via the tank-side coupling element 9 and the water outlet 9a provided there can be regulated.

[0057] Fig. 5 shows the installation state of the water tank 4 shown in Fig. 1 in a front view.

[0058] Fig. 6 shows the state shown in Fig. 3 with the water tank 4 removed.

[0059] The sections marked "A" in Figures 5 and 6 correspond to the sections shown in Figures 1 and 3.

Claims

Patent claims 1. A vibrating plate for soil compaction, comprising an upper mass (1); a lower mass (2) movable relative to the upper mass (1), having at least one vibration exciter and a soil contact plate (3) for transmitting a vibration generated by the vibration exciter to a soil to be compacted; a water tank (4) for storing water; a water tank holder for supporting the water tank (4); a sprinkling device (5) for distributing water such that the applied water reaches the area below the soil contact plate (3); and a line connection (6) between the water tank (4) and the sprinkling device (5) for supplying water from the water tank (4) to the sprinkling device (5); wherein the water tank (4) is detachably supported by the water tank holder; and wherein the water tank (4) is manually detachable from the water tank holder and thus separable from the line connection (6).

2. Vibration plate according to claim 1, wherein a coupling (8) is provided between the line connection (6) and the water tank (4), at which coupling the water tank (4) can be separated from the line connection (6).

3. Vibration plate according to one of the preceding claims, wherein the coupling (8) has a tank-side coupling element (9) and a line-side coupling element (10).

4. Vibration plate according to one of the preceding claims, wherein the coupling (8) is a plug-in coupling; and wherein the tank-side coupling element (9) and the line-side coupling element (10) are pluggable and detachable.

5. Vibration plate according to one of the preceding claims, wherein the line-side coupling element (10) is provided on the upper mass (1), on the lower mass (2) or on the protective frame.

6. Vibration plate according to one of the preceding claims, wherein the tank-side coupling element (9) and / or the line-side coupling element (10) has a sealing element.

7. Vibration plate according to one of the preceding claims, wherein at least one of the sealing elements has a conical shape.

8. Vibration plate according to one of the preceding claims, wherein the line connection (6) has a hose section for compensating a relative movement between the water tank (4) and the sprinkling device (5).

9. Vibration plate according to one of the preceding claims, wherein the sprinkling device (5) has a sprinkling bar.

10. Vibration plate according to one of the preceding claims, wherein the water tank (4) has a water outlet (9a) and a valve device (14) for opening and closing the water outlet (9a). 1 1. Vibration plate according to one of the preceding claims, wherein the valve device (14) is automatically openable and closable; the valve device (14) is automatically opened in an installed state in which the water tank (4) is carried in the water tank holder; and wherein the valve device (14) is automatically closed in a removed state in which the water tank (4) is removed from the water tank holder.

12. Vibration plate according to one of the preceding claims, wherein the valve device (14) can be opened and closed manually.

13. Vibration plate according to one of the preceding claims, wherein the valve device (14) allows a dosage of the water supply to the sprinkling device (5) depending on the position.

14. Vibration plate according to one of the preceding claims, wherein the valve device (14) comprises a cylindrical valve body (15); the cylindrical valve body (15) in an installed state in which the water tank (4) is carried in the water tank holder, a vertical longitudinal extension and is mounted in the water tank (4) so ​​as to be rotatable about a vertical axis; and wherein the valve body (15) is rotatable between an open position in which the water outlet (9a) is open and a closed position in which the water outlet (9a) is closed.

15. Vibration plate according to one of the preceding claims, wherein the valve body (15) extends from a bottom of the water tank (4) to a top of the water tank (4); and wherein - the valve body (15) has a handle device (15a) on the top of the water tank for manual rotation of the valve body (15) by an operator.

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