DE102017113305A1 - Vacuum lifter and suction plate - Google Patents

Abstract

In a vacuum lifter (1) with a negative pressure generating vacuum device (8) in a base body (2) and on an underside (5) of the base body (2) arrangeable suction plate (3), which cooperates with a male object to be recorded first Sealing means (9), which is arranged on a Saugplattenkörper (11) and a first suction chamber (10) encloses, wherein the Saugplattenkörper (11) has a connection opening (14), it is provided that the Saugplattenkörper (11) on one of the base body (2) side facing a second sealing means (12), which forms a second suction chamber (13).

Description

The invention relates to a vacuum lifter according to the preamble of claim 1 and to a suction plate according to the preamble of claim 15.

Vacuum lifters allow lifting and moving of heavy or unwieldy objects. In this case, a negative pressure is generated by the vacuum lifter, whereby the object to be lifted can be sucked. The suction of the vacuum lifter is usually transmitted via a suction plate on the object to be moved.

Different configurations of this vacuum lifter are known. In DE 69 301 992 T2 there is disclosed a vacuum lifting device that allows moving objects by means of a lifting tube without workers having to lift the article with physical force. A suction plate with a seal, which is formed in the direction of the article to be lifted, allows the interaction of the vacuum lifter with an object.

The problem here is that the suction plate is firmly installed on the housing of the vacuum lifter and replacement of the plate is impossible, so no adaptation to the size and shape of the objects to be lifted can be done.

An alternative embodiment is disclosed in DE 43 27 663 C2 which discloses a vacuum lifting device for lifting plates, in particular concrete and natural stone slabs. The vacuum lifting device described therein shows a base body with a vacuum device. On the base body, a suction plate is arranged on the underside, which should be interchangeable with other suction plates, so that an adaptation of the vacuum lifting device to different stone and plate shapes and stone and plate weights is possible.

A disadvantage is that the suction plates must be brought into connection with the base body, wherein it is difficult for most metallic materials of the base body and the suction plate to form a tight connection. As a result, the suction power of a negative pressure generating device is significantly reduced.

The aim of the invention is to overcome these and other disadvantages of the prior art and to provide a vacuum lifter, which allows easy replacement and easy adjustment of the suction plates. In addition, the suction plate should be able to cooperate sealingly with the main body. The vacuum lifter should be easy to produce.

Main features of the invention are set forth in the characterizing part of claim 1 and claim 15. Embodiments are the subject of claims 2 to 14.

In a vacuum lifter with a negative pressure generating vacuum device in a base body and an attachable to a bottom of the body suction plate having a cooperating with a male object first sealing means, which is arranged on a Saugplattenkörper and encloses a first suction chamber, wherein the Saugplattenkörper has a connection opening, the invention provides that the Saugplattenkörper has on a side facing the base body, a second sealing means, which forms a second suction chamber.

The vacuum lifter is suitable for lifting objects and loads, especially concrete or natural stone slabs. Due to the construction according to the invention a simple attachment of the suction plate is made possible on a base body, while the suction plate acts in such a way with the main body that an optimum suction power for lifting an object can be achieved. In addition, a vacuum lifter with such a suction plate is simple and inexpensive to produce.

Furthermore, by the replaceable suction plate, which cooperates sealingly with the base body and a male object, flexible to different object sizes, in particular plate sizes, are received.

The vacuum device is preferably a vacuum pump, which is arranged in the base body. Alternatively, a vacuum pump is located outside of the main body, away from it, and the suction power acts through a vacuum hose and / or a vacuum chamber in the main body on the suction plate and the object to be lifted.

The underside of the main body corresponds to the side which is in use of the vacuum lifter to the object to be lifted, for example, his flagstone, directed.

The connection opening constitutes an opening in the absorbent body so that the suction effect emanating from the vacuum device in the base body can be exerted on the absorbent article via the absorbent body and the sealing means. This allows lifting of an object with the device according to the invention.
Depending on the field of application, the connection opening may have a different size and shape, depending on the required Suction power, the possible suction power of the vacuum device or the surface texture of the object to be lifted are selectable.

If, for example, a diaphragm or rotary vane pump is used which generates a high vacuum but a low suction volume, it is advantageous to provide a suction plate with a connection opening which has a small diameter. As a result, the suction volume is kept low. This combination of the mentioned vacuum pumps and connection opening is advantageous, for example, for lifting objects with dense, slightly porous surfaces.

In contrast, suction turbines produce a lower vacuum, but have a high suction volume. When using a suction turbine for vacuum generation, the connection opening in the suction plate is preferably formed over a large area in order to have the lowest possible suction losses. This embodiment is advantageous, for example, for lifting objects with a porous surface.

The first sealing means preferably has a seal which can be brought into sealing contact with a male object. The achievable sealing effect is dependent both on the material used for the seal and on the surface condition of the object to be lifted. In this context, sealing means that the sealing means of the suction plate can be brought into contact with the object to be picked up at least in such a way that the object can be raised by means of the suction force exerted.

In a further development, it is preferably provided that the sealing means has, in addition to a seal, a border which stabilizes the seal.
As a result, a deformation of the seal in case of improper handling of the vacuum lifter is avoided.

The second sealing means preferably has a seal which can be brought into contact with the base body in a substantially sealing manner. As a result, the suction plate can be sealingly brought into contact with the main body, so that the vacuum lifter can suck in objects. This arrangement is simple and inexpensive to produce.

In a preferred embodiment, the seal of the first and / or the second sealing means comprises a polymer, in particular rubber. As a result, various requirements can be variably addressed and the material of the seal, in particular plastic, adapted to the required working conditions. In addition, with seals that have plastic, a good seal can be obtained, so that a good suction performance can be achieved. This is important to lift objects.

Preferably, the seal of the first and / or the second sealant on sponge rubber or sponge rubber. This is elastic to effect an adjustment to the body or a male plate. In addition, foam rubber or sponge rubber, good sealing properties, since it is largely closed-cell design.

Preferably, the seal of the first and / or the second sealant is adhered to opposite surfaces of the Saugplattenkörpers. For this purpose, it may be provided that the seals are designed to be self-adhesive on one side and are provided with a protective strip prior to sticking to the Saugplattenkörper. This allows a simple and inexpensive production of such a suction plate for a vacuum lifter.

Preferably, the suction plate has a wall whose inner circumference substantially corresponds to an outer periphery of the underside of the base body. Here, some game of suction plate is advantageous to the body. As a result of this embodiment, the wall of the suction plate surrounds a lower region of the circumferential wall of the base body, so that a simple and sealing attachment of the suction plate to the base body can be achieved. It is preferred that a seal of the second sealing means within the wall, is arranged such that the seal cooperates sealingly with the underside of the base body.

In a preferred embodiment, the suction plate can be fastened to the base body. As a result, the suction plate is secured against falling, which is particularly important if no object is sucked, since the suction plate is then not or only slightly sucked by the vacuum-generating device in the body.

It is preferred that the suction plate on the main body can be fastened with quick releases. Quick release clamps enable quick attachment and detachment of a suction plate to the body, which means that the suction plate can be replaced quickly and easily. If, for example, a larger object, in particular a large-format flagstone, are raised, the use of a suction plate which has a large-area first suction space is advantageous. On the other hand, in the case of articles which have a less plate-like dimension, it may be advantageous to provide a suction plate, its first sealing means and first suction chamber the surface dimensions of these objects is adjusted. So, for example, when curbs must be raised, suction plates are used, the Saugplattenkörper and sealant form substantially a right angle.

Preferably, the quick release on a safety lock, whereby a fall of the suction plate is prevented by accidental opening.

In an alternative embodiment, the suction plate is screwed to the base body. As a result, a backup of the suction plate is also achieved.

In a preferred embodiment, a first area bounded by the first sealant is the same size as a second area bounded by the second sealant. By this configuration, for example, objects can be raised, which have a mean dimension in relation to the base body.

In an alternative embodiment, a first area bounded by the first sealant is greater than a second area bounded by the second sealant. By this configuration, for example, objects can be raised with larger dimensions.

In a further alternative embodiment, a first area bounded by the first sealant is smaller than a second area bounded by the second sealant. This embodiment allows the lifting of objects with smaller dimensions of the surfaces.

Preferably, the Saugplattenkörper is formed as a plate. As a result, the first and second sealing means can be easily mounted on the opposite surfaces of the plate-shaped Saugplattenkörpers. The connection opening connects the two suction chambers with each other and allows objects to be lifted by the vacuum lifter.

In an alternative embodiment, the suction plate body is designed as a conically shaped hollow body. By this alternative embodiment, the suction plate can be adapted to the objects to be lifted. The Saugplattenkörper may be conical continue or be tapered, so that an enlargement or reduction of the suction surface formed by the first suction chamber is made possible.

In this embodiment, the sealing means are preferably mounted directly on the edge of the hollow body. This is easy to produce.

In a preferred development, the base body has a hanger on an upper side. The top is located opposite the bottom. The hanger is designed such that the vacuum lifter can be suspended from it, for example to a crane. This allows especially heavy objects to be lifted.

Preferably, the base body has at least one handle. With this handle, the vacuum lifter is movable and alignable by a worker. Also, the vacuum lifter can be hand-operated. For example, the vacuum lifter and the object to be lifted can be lifted by two workers together and moved to the storage place.

In a preferred embodiment, the vacuum lifter has control elements. With the help of these controls, for example, the suction plate can be activated or deactivated and the vacuum lifter are operated.

The invention further comprises a suction plate for use with a vacuum lifter according to any one of the preceding claims, wherein it is provided that the suction plate has a first sealing means cooperating with a male object, which is arranged on a suction plate body and enclosing a first suction space, and a second Sealant, on a side facing the base body of Saugplattenkörpers, which forms a second suction chamber, wherein the suction plate body has a connection opening.

The features mentioned in connection with the vacuum lifter, which relate to the suction plate, are correspondingly transferable to possible embodiments of the suction plate.

• 1 perspektivische Ansicht eines erfindungsgemäßen Vakuumhebers,
• 2 Schnittansicht der Ausführungsform aus 1,
• 3 perspektivische Ansicht einer Ausführungsform einer Saugplatte,
• 4 Schnittansicht der in 3 gezeigten Ausführungsform einer Saugplatte,
• 5 perspektivische Ansicht einer weiteren Ausführungsform einer Saugplatte,
• 6 Schnittansicht der in 5 gezeigten Ausführungsform einer Saugplatte,
• 7 perspektivische Ansicht einer weiteren Ausführungsform einer Saugplatte,
• 8 Schnittansicht der in 7 gezeigten Ausführungsform einer Saugplatte,
• 9 perspektivische Ansicht einer weiteren Ausführungsform einer Saugplatte,
• 10 perspektivische Ansicht einer weiteren Ausführungsform einer Saugplatte,
• 11 Schnittansicht der in 10 gezeigten Ausführungsform einer Saugplatte,
• 12 Schnittansicht einer weiteren Ausführungsform einer Saugplatte,
• 13 perspektivische Ansicht einer weiteren Ausführungsform einer Saugplatte.

Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

• 1 perspective view of a vacuum lifter according to the invention,
• 2 Section view of the embodiment of 1 .
• 3 perspective view of an embodiment of a suction plate,
• 4 Section view of in 3 shown embodiment of a suction plate,
• 5 Perspective view of another embodiment of a suction plate,
• 6 Section view of in 5 shown embodiment of a suction plate,
• 7 Perspective view of another embodiment of a suction plate,
• 8th Section view of in 7 shown embodiment of a suction plate,
• 9 Perspective view of another embodiment of a suction plate,
• 10 Perspective view of another embodiment of a suction plate,
• 11 Section view of in 10 shown embodiment of a suction plate,
• 12 Sectional view of another embodiment of a suction plate,
• 13 perspective view of another embodiment of a suction plate.

1 shows a perspective view of a vacuum lifter according to the invention 1 with a basic body 2 and a suction plate 3 ,

The suction plate has a wall 4 on whose inner circumference substantially the outer circumference of the underside 5 of the basic body 2 equivalent. This surrounds the wall 4 the suction plate 5 a lower portion of the body 2 ,

The suction plate 3 is with the help of quick releases 6 at the base body 2 attached.

In addition, at the base body 2 a hanger 7 be provided to attach the vacuum lifter, for example, to a crane can.

2 shows a sectional view of the embodiment 1 , A vacuum generating vacuum device 8th is indicated by a dashed line.

In addition, it can be seen that the suction plate 3 a first sealant 9 has, which can cooperate with a male object. The first sealant 9 forms a first suction chamber 10 from that of the first sealant 9 and the Saugplattenkörper 11 is limited. On the side of the Saugplattenkörpers 11 that is the main body 2 facing, is a second sealant 12 arranged, which has a second suction chamber 13 formed.

3 shows a perspective view of an embodiment of a suction plate 3 , The suction plate 3 has a wall 4 on. In addition, the first sealant 9 and the second sealant 12 shown. In the Saugplattenkörper 11 is a connection opening 14 vorgehsehen. In the embodiment shown here, the connection opening 14 formed such that the first sealant 9 and the second sealant 12 essentially on a frame as Saugplattenkörper 11 are arranged.

On two opposite sides of the suction plate 3 is always on hooks 15 on the wall 4 intended. This hook 15 serves to fasten the suction plate 3 on a base body 2 ,

4 discloses a sectional view of Figs 3 shown embodiment of a suction plate 3 , It can be seen that a first surface 16 that of the first sealant 9 is limited, is just as large as a second surface 17 that of the second sealant 12 is limited.

5 shows a perspective view of another embodiment of a suction plate 3 , Here is the Saugplattenkörper 11 larger than the second sealant 12 educated. The connection opening 14 essentially corresponds to the shape of the second sealant 12 , The sectional view of this embodiment of a suction plate 3 is in 6 shown. A first area 16 that of the first sealant 9 is limited, is designed larger than a second surface 17 that of the second sealant 12 is limited. This embodiment is particularly suitable for lifting large-sized objects, especially stone slabs.

The 7 and 8th show a further embodiment of a suction plate 3 , Here, the Saugplattenkörper 11 a smaller sized connection opening 14 on. In addition, the first area 16 that of the first sealant 9 is limited, smaller, than a second surface 17 that of the second sealant 12 is limited. This embodiment allows the lifting of small-sized objects, in particular plates.

9 shows a perspective view of another embodiment of a suction plate 3 , where here is a very small area connection opening 14 is provided. This is advantageous when, for example, diaphragm pumps or rotary vane pumps are used as a vacuum device, which generate a very high vacuum, but have only a small suction volume. These are used for objects with dense, slightly porous surfaces.

The 10 and 11 show a further embodiment of a suction plate 3 , Here is the Saugplattenkörper 11 designed as a conically shaped hollow body. The first sealant 9 and the second sealant 12 are arranged on opposite surfaces of the hollow body.

12 shows a sectional view of another embodiment of a suction plate 3 , Here increases the conically shaped hollow body as Saugplattenkörper 11 the first area 16 that of the first sealant 9 is formed, opposite the second surface 17 that is the main body 2 is facing.
In 13 is another embodiment of a suction plate 3 shown, which is particularly suitable for lifting curbs. The shape of the Saugplattenkörpers 11 is designed such that this with the main body 2 is connectable and at the same time can interact effectively with an object that has no plate-like shape. The Saugplattenkörper is formed on the side which cooperates with the article, such that the first sealant 9 is optimally brought into contact with a surface of the male object.

The invention is not limited to one of the above-described embodiments, but can be modified in many ways.

All of the claims, the description and the drawings resulting features and advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in various combinations.

LIST OF REFERENCE NUMBERS

1

vacuum lifters

2

body

3

suction plate

4

wall

5

Bottom of the body

6

Quick release

7

hanger

8th

Vacuum generating vacuum device

9

first sealant

10

first suction chamber

11

Saugplattenkörper

12

second sealant

13

second suction chamber

14

connecting opening

15

hook

16

first surface

17

second surface

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 69301992 T2 [0003]
• DE 4327663 C2 [0005]

Claims (15)

Vacuum lifter (1) having a vacuum device (8) which generates a vacuum in a base body (2) and a suction plate (3) which can be arranged on a lower side (5) of the base body (2) and which has a first sealing means cooperating with an object to be picked up ( 9) which is arranged on a suction plate body (11) and encloses a first suction space (10), wherein the Saugplattenkörper (11) has a connection opening (14), characterized in that the Saugplattenkörper (11) on a the base body (2 ) side facing a second sealing means (12), which forms a second suction chamber (13). Vacuum lifter (1) after Claim 1 , characterized in that the first sealing means (9) has a seal which can be brought into contact with a male object substantially sealingly. Vacuum lifter (1) according to one of the preceding claims, characterized in that the second sealing means (12) has a seal which can be brought into contact with the base body (2) in a substantially sealing manner. Vacuum lifter (1) according to one of the preceding claims, characterized in that the seal of the first and / or the second sealing means (9, 12) comprises a polymer, in particular rubber. Vacuum lifter (1) according to one of the preceding claims, characterized in that the suction plate (3) has a wall (4) whose inner circumference substantially corresponds to an outer circumference of the underside of the base body (2). Vacuum lifter (1) according to one of the preceding claims, characterized in that the suction plate (3) on the base body (2) can be fastened. Vacuum lifter (1) according to one of the preceding claims, characterized in that the suction plate (3) on the base body (2) with quick-release (6) can be fastened. Vacuum lifter (1) according to any one of the preceding claims, characterized in that a first surface (16) delimited by the first sealing means (9) is the same size as a second surface (17) separated from the second sealing means (16). 12) is limited. Vacuum lifter (1) according to one of Claims 1 to 7 characterized in that a first surface (16) bounded by the first sealing means (9) is larger than a second surface (17) bounded by the second sealing means (12). Vacuum lifter (1) according to one of Claims 1 to 7 characterized in that a first surface (16) bounded by the first sealing means (9) is smaller than a second surface (17) bounded by the second sealing means (12). Vacuum lifter (1) according to one of the preceding claims, characterized in that the Saugplattenkörper (11) is formed as a plate. Vacuum lifter (1) according to one of Claims 1 to 7 and 9 to 10 , characterized in that the Saugplattenkörper (11) is formed as a conically shaped hollow body. Vacuum lifter (1) according to one of the preceding claims, characterized in that the base body (2) has a hanger (7) on an upper side. Vacuum lifter (1) according to one of the preceding claims, characterized in that the base body (2) has at least one handle. Suction plate (3) for use with a vacuum lifter (1) according to any one of the preceding claims, characterized in that the suction plate (3) comprises a first sealing means (9) cooperating with a male object and disposed on a suction plate body (11) and a first suction chamber (10), and a second sealing means (12), on a side facing the base body (2) of Saugplattenkörpers (11), which forms a second suction chamber (13), wherein the Saugplattenkörper (11) has a connection opening ( 14) between the two suction chambers (10, 13).

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