Connecting device for the detachable connection of plate-shaped wall elements and partition walls

Abstract

Connecting device (400) for detachably connecting plate-shaped wall elements (8), wherein the connecting device (400) has a receiving body (300) and a connector body (200), and the connector body (200) has a base body (21) and at least one connecting bolt (22) arranged on the base body (21) and insertable into a recess (28) of a wall element (8), and the receiving body (300) has at least one receptacle (301) provided with an interior (302) and an opening (303), which can be inserted into the recess (28) of the wall element (8) and receives the connecting bolt (22) at least along a section of its longitudinal extent, characterized in that the receptacle (301) has resilient elastic elements (6),which surround the interior (302) at least along a partial area of ​​the circumferential extent of the interior (302) and the elements (6) deflect radially outwards when the connecting bolt (22) is inserted into the interior (302) of the receptacle (301) and bear against an outer circumferential surface of the connecting bolt (22).

Description

[0001] The present invention relates to a connecting device for detachably joining plate-shaped wall elements, wherein the connecting device comprises a receiving body and a connector body, and the connector body comprises a base body and at least one connecting bolt arranged on the base body and insertable into a recess of a wall element, and the receiving body has at least one receptacle provided with an interior space and an opening, which can be inserted into the recess of the wall element and receives the connecting bolt at least along a section of its longitudinal extent, according to the preamble of claim 1. The invention further relates to a partition wall according to the preamble of claim 11.

[0002] The connecting device can be used to construct a partition wall, which could be, for example, a mobile partition wall as often used in trade fair construction. The partition wall can be part of a system that uses various wall elements to form the partition wall.

[0003] Standard partition wall systems consist of flat panels with corner holes and connectors secured by multiple bolts. To prevent the connectors from twisting, connectors with pairs of bolts are typically inserted at the wall corners. These corners usually have two holes, and the connectors have four bolts. This rigidly connects the wall panels. To construct various wall layouts with different angles, different angle connectors, end connectors, T-connectors, and corner connectors are commonly used. Even with right-angled wall layouts, this necessitates a variety of connector types. The necessary materials must be kept on hand. With such simple bolted wall systems, the lower connectors tend to fall out during insertion, assembly, and modification. This issue can be addressed by using elastic components on the bolts.

[0004] A connecting device for forming such a partition wall is known, for example, from DE 20 2015 001 588 U1.

[0005] Furthermore, a device for detachably hinged connection of panel-shaped wall elements has become known from WO 92 / 21832 A1.

[0006] Based on DE 103 42 994 A1, a connecting device for the detachable joining of plate-shaped wall elements has become known.

[0007] The object of the invention is to improve the known connecting device, in particular to provide a simple, inexpensive, easy-to-use, and stable connecting device that prevents the connecting device from unintentionally falling out of the wall elements. The connecting device to be created should also require only a few parts.

[0008] A partition wall with the connecting device to be created should also be provided.

[0009] The invention, with regard to the connecting device, has the features specified in claim 1 to solve this problem. Advantageous embodiments thereof are described in the further claims. Furthermore, the invention has the features specified in claim 11 with regard to the partition to be created; an advantageous embodiment thereof is specified in the further claim.

[0010] The invention provides a connecting device for detachably joining plate-shaped wall elements, wherein the connecting device comprises a receiving body and a connector body, and the connector body comprises a base body and at least one connecting bolt arranged on the base body and insertable into a recess of a wall element, and the receiving body has at least one receptacle provided with an interior space and an opening, which can be inserted into the recess of the wall element and receives the connecting bolt at least along a section of its longitudinal extent, wherein the receptacle has resilient elastic elements which surround the interior space at least along a partial region of the circumferential extent of the interior space and which, when the connecting bolt is inserted into the interior space of the receptacle, deflect radially outwards and bear against an outer circumferential surface of the connecting bolt.

[0011] The receiving body can be arranged on a panel-shaped or plate-shaped wall element such that the receptacle, which has an interior space and an opening, is received in a recess of the wall element. The interior of the receptacle is accessible through the opening, which can be a passage for the connecting bolt of the connector body. When the connector body is attached to the receiving body on the wall element with the connecting bolt, for example by means of a dowel or a screw element, the connecting bolt passes through the opening into the interior of the receiving body's receptacle, so that the bolt is also located in the recess of the wall element.The bolt is positioned in the interior of the receptacle in such a way that it extends from the opening into the space arranged between the elastic elements and may even extend beyond it.

[0012] Since the receptacle has elastic elements, which can be, for example, two mutually associated elastic elements in the form of spring tongues, which are then, when the connecting bolt is inserted through the opening into the interior of the receptacle, pressed away from each other by the connecting bolt, i.e., radially outwards, and thus come into contact with an outer circumferential surface of the connecting bolt and there bear against it in a frictional manner, and due to the elastic design of the elements exert a holding force or spring force on the connecting bolt, the connecting bolt cannot fall out of the receptacle on its own, i.e., not unintentionally, which is particularly advantageous if the connecting device is arranged on an end face on the underside of wall elements and could therefore fall out due to gravity.

[0013] The connecting device according to the invention prevents such an unintentional falling out of the connecting bolt(s) from the receptacle of the connector body even when a mobile partition wall created with the connecting device according to the invention, for example with two or more wall elements, is moved, for example during trade fair construction.

[0014] According to a further development of the invention, the resilient elastic elements, which can be two or more elastic elements, are arranged on a base body of the receiving body, i.e., for example, are formed integrally with the base body, and surround the opening of the base body leading into the interior and are arranged at a distance from each other.

[0015] When the connecting bolt is inserted into the interior of the receptacle, the elastic elements deflect radially outwards and lie against the outer circumferential surface of the connecting bolt, exerting a holding force on the connecting bolt resulting from the elastic deformation of the elements.

[0016] The connecting bolt can be easily pulled out of the receptacle, but does not fall out of the receptacle unintentionally. This process of inserting the connecting bolt into the receptacle of the receiving body and pulling it out again is repeatable, so that the aforementioned partition wall with the connecting device according to the invention can be assembled and disassembled as often as desired.

[0017] The elastic elements act on the connecting bolt(s) and thus clamp the connecting bolt(s) reversibly in the receptacle.

[0018] According to a further development of the invention, it is also provided that the spring-like elastic elements are designed as spring tongues and have a contact surface facing the interior, against which the connecting bolt can be detachably brought into contact.

[0019] When the connecting bolt is inserted into the receptacle of the connecting body, it slides along the contact surface, ensuring that the spring tongues are pressed slightly radially outwards, so that they exert a spring force on the outer circumferential surface of the connecting bolt and thus clamp the connecting bolt frictionally in the interior of the receptacle.

[0020] According to a further development of the invention, it is also provided that the opening leading into the interior has a configuration that differs from a circular configuration in a top view.

[0021] This further development of the invention offers the advantage that a locking bolt penetrating the opening, which is designed to be form- and surface-complementary to the opening at least along a section of its longitudinal extension on the outer circumference, is arranged in a rotationally fixed manner within the opening with respect to any rotational movement of the locking bolt, in particular by a positive locking mechanism, and is thus further prevented from unintentionally falling out of the opening. Unimpeded rotational movement of the locking bolt within the opening can, in fact, lead to the bolt or locking bolt falling out of the opening due to such loosening of the locking bolt, which is prevented by the design of the connecting device according to the invention.

[0022] According to a further development of the invention, it is also provided that the opening has a circumferential wall which surrounds the opening and the circumferential wall has a cross-sectionally tapered configuration towards the interior.

[0023] This further development advantageously facilitates the insertion of a locking bolt into the opening, which, for example, must be inserted from below into a lower end face of the wall panel. This is achieved through the cross-sectionally tapered configuration of the opening and the shape and surface complementary design of the locking bolt, resulting in improved guidance when inserting or placing the locking bolt into the opening of the receiving body. This is particularly advantageous when the locking bolt must be inserted into the wall panel from below, as described above, because the user of the locking device cannot visually verify this insertion process if the wall panel is at least largely vertically oriented with its end face facing downwards.

[0024] According to a further development of the invention, it is also provided that the locking bolt has an elongated configuration and has a first section with a configuration deviating from a circular configuration and a second section.

[0025] The second section can, for example, be a circular section in cross-section. The connecting bolt can be easily inserted into the opening of the receiving body's receptacle using this section, and this section can also project into or penetrate the interior of the receiving body's receptacle. The first section, which has a configuration other than circular, ensures that the locking bolt is positively engaged in the opening of the connector body's receptacle and secured there against rotation. Advantageously, the first section of the connecting bolt is designed to be form- and surface-complementary to the configuration of the receptacle's opening.

[0026] According to a further development of the invention, it is also provided that the first section has engagement elements on the outer surface for engagement with the opening, the cross-sectional area of ​​which decreases from the base body in the direction of the second section.

[0027] The engagement elements ensure that the connecting bolt, bolt, or locking bolt is secured against rotation in the opening of the receiving body.

[0028] Because the cross-sectional area of ​​the first section decreases from the base body towards the second section, the outer circumferential surface of the first section tapers in the area of ​​the engagement elements. This tapered configuration limits the insertion depth of the connecting bolt into the receptacle when it is inserted. Once the connecting bolt has been inserted far enough into the opening that the engagement elements are flush with the inner circumferential surface of the opening, the connecting bolt is automatically secured in position without the need for visual verification by the user.

[0029] Following further training, it is also planned that the first section will have a shape- and surface-complementary configuration to the configuration of the opening, thereby achieving the positive locking connection between the connecting bolt and the opening as already explained above, and thus implementing a rotational protection of the connecting bolt relative to the opening.

[0030] According to a further development of the invention, it is also provided that the opening in a top view has an inscribed inner circle, on the circumference of which radially outward extending protrusions are arranged, which are provided equidistant or non-equidistant to each other.

[0031] The protrusions can, for example, provide a star-shaped, rectangular, or jagged configuration of the opening in a top view; the protrusions can also be semicircular, quarter-circular, or ellipsoidal and be arranged at equal intervals relative to each other in the circumferential direction of the opening or have different distances relative to each other.

[0032] Similarly, the respective connecting bolt on the first section is designed to be form- and surface-complementary, so that the first section of the connecting bolt can be fixed in the opening of the receiving body in a rotationally fixed manner.

[0033] According to a further development of the invention, it is also provided that the connector body has two base bodies which are arranged axially fixed and pivotable relative to each other by means of a joint, wherein at least one connecting bolt is arranged on each base body.

[0034] In this way, for example, two wall elements can be coupled to each other at their opposing end faces using two connecting devices, and the internal or external angle between the two wall elements can be adjusted or set by the joint according to the respective requirements.

[0035] The invention also provides a partition wall with at least two plate-shaped wall elements, which has a connecting device as described above.

[0036] The two plate-shaped wall elements can be connected to each other at their respective end faces using a connecting device and fixed in their position relative to each other, for example by using a connecting device with two connecting bolts, one of which is arranged in a receptacle of a receiving body in each wall element, and two wall elements can also be connected to each other by a hinge, as explained above.

[0037] According to a further development of the partition wall according to the invention, it is provided that a wall element has at least one recess on at least one end face, which is designed for arranging the receiving of the receiving body.

[0038] The invention is explained in more detail below with reference to the drawing. The figures show exemplary embodiments of the connecting device and the partition, specifically: Fig. 1 a receiving body of the connecting device according to an embodiment of the connecting device in a top view; Fig. 2 hole shapes for connecting bolts and openings of the mount; Fig. 3 the receiving body in two spatial views; Fig. 4. The connector body in two spatial views; Fig. 5 a wall element with receiving body and connector body; Fig. 6 multiple wall elements with multiple receiving bodies and connector bodies; Fig. 7 two wall elements with two hinged connecting devices; Fig. 8 two wall elements with twisted star bolts, here e.g. 60°; Fig. 9. An application example using small wall panels and U-connectors; Fig. 10. An application example with large wall panels and various connectors; and Fig. 11 an enlarged representation of the receiving body in a perspective view from below.

[0039] The invention is shown and explained below with reference to various embodiments of the connecting device with receiving bodies and connector bodies having openings in the receiving bodies and connecting bolts in different configurations. In particular, the openings in the receiving bodies and the connecting bolts can have different configurations and / or inner and / or outer contours.

[0040] The connector body 200 of the connecting device 400 has a base body in the form of a longitudinal plate 21, the longitudinal plate having a connecting bolt or pin 22 at each of its two ends. The pins 22 preferably have a round cross-section at their free end, the second section 222, and a shaped, for example, square or preferably star-shaped, cross-section in the other part, the first section 221. The connector body with connecting bolts is hereinafter also referred to as the connector.

[0041] The transitions between the star shape and the round shape are chamfered. The upper round part facilitates insertion into the holes or openings 303 of the base body 1 of the receiving body 300. The bolts 22 are thicker at their base near the longitudinal plate 21 than at their free ends and are slightly conical or formed in two or more different sections of varying thickness. At the free end, the bolts 22 are sharply chamfered over a short distance. Thus, both the star-shaped and the round parts of the bolts are slightly tapered towards the end. The protrusions on the bolts 22 are preferably formed as triangular protrusions with a 90° apex, i.e., star-shaped points 23, but can also be steeper or shallower, or can also be formed as rectangular protrusions 24, wave-shaped protrusions 25, or a combination thereof.The star shape consists preferably of eight jagged protrusions, but can also be square-shaped, i.e. with four points or four protrusions, or have fewer or more protrusions.

[0042] The bolts have a threaded hole 14, preferably M8 mm, to accommodate extensions such as leveling feet 13 or mounting bolts 12. The connector body 200 with connecting bolt 22 and base body or longitudinal plate 21 can preferably be made of a stable, slightly elastic material such as polyamide; however, the aforementioned components can also be made of other plastics or metal.

[0043] The longitudinal plate 21 has a rectangular cross-section and is preferably 3 mm to 7 mm thick and preferably 14 to 30 mm wide. The longitudinal plate has a circumferential groove 27 for engagement in order to facilitate the removal of the connectors.

[0044] The receiving body 300 inserted into the wall panel or wall element 8 has a design based on, for example, Fig. The wall element 8 is located on the base body or counter plate 1 shown in Figure 3 and is positioned at all four wall corners 29 of the wall element 8, where it can be molded, glued, or screwed in. The wall panels 8 are preferably 40 mm thick. The counter plate 1 of the connecting device 400, integrated into the wall panel 8, consists of a plate preferably 3 to 8 mm thick with rounded ends.

[0045] The counter plate is chamfered on its outer edge towards the inner side. Corresponding to the connecting bolts or forming bolts 22, the counter plate has square, preferably star-shaped, openings 303 or holes 2; preferably there are two holes 2, but there can also be more, preferably with an inner circle 4 with a diameter of 12 mm.

[0046] Corresponding to the number of openings 303 of the respective receptacles 301, a corresponding number of round holes 28 are drilled into the wall or wall element 8 behind the plate 1, the diameter of the round holes 28 corresponds to the descriptive outer circle 3 of the openings 303 of the counter plate or the descriptive outer circle 3 of the bolts 22, thereby additionally stabilizing the inserted bolt 22 and significantly increasing the overall stability.

[0047] The openings 303 in the counter plate 1 are preferably formed as triangles, i.e., star shape 23, with a 90° apex, according to the forming bolts 22, but can also be steeper or shallower, or can also be formed as rectangular shape 24, wave shape 25, or a combination thereof. The star shape preferably consists of eight indentations in a zigzag shape, but can also be formed as a square shape, i.e., with four points or four indentations, or have fewer or more indentations.

[0048] On the counter plates 1, which are mounted at the wall corners 29, small resilient parts 6 or elastic elements 6 are attached or molded on the inside, which project resiliently slightly into the openings 303. Preferably, four or eight such resilient parts 6 are formed per opening, but there can also be fewer or more resilient parts 6.

[0049] When connected, the bolts 22 engage in the openings 303 – also referred to as holes 2, and in the case of a star-shaped configuration of the holes 2, also as star holes 2 – of the counter plate 1 on the wall element 8. The spring elements 6 are pushed slightly radially outwards by the bolt 22, thereby holding the bolt 22 in place, in particular by friction. These spring elements 6 are arranged precisely in the area between the outer diameter or outer circle 3 and the inner diameter or inner circle 4 and are bounded by the edges of the star triangles or the projections 30.

[0050] Because the spring parts 6 are arranged in this area 31, the star bolts 22 can find additional support in the round holes 28 of the wall plates 8.

[0051] The small spring-like parts or elastic elements 6 are thicker at their base near the counter plate or base body 1 than at their free ends and are slightly conical or formed in two or more distinct sections of different thicknesses. The edges of the spring-like parts are chamfered.

[0052] The counter plate 1 has one or more round dowels 10 molded onto its inner surface, preferably with a diameter of 8 mm and preferably with knurling, which anchor the counter plate into the wall 8, thus securing it. The dowel 7 is slightly chamfered. The counter plate could also be screwed to the wall. The counter plates or base bodies are preferably made of a stable, slightly elastic material such as polyamide, but can also be made of other plastics or metal.

[0053] For special connections, the longitudinal plate of the connector is provided in the middle with a T-shape at 90° and preferably with three or four bolts, preferably star-shaped bolts 22, with preferably M8 threaded holes 14, resulting in a special U4 connector 15.

[0054] For angled connections, the connector is designed with a joint 224, creating a hinged connector 16. The joint is designed such that the pivot point lies precisely at the outer, vertical edge of the wall panel, ensuring that the wall joint remains almost closed when the angle between the walls changes. The hinged connection is permanently attached to a joint axis 17, preferably with a screw, although this could also be achieved with a riveted or welded bolted connection. This allows the hinged connection to rotate with a predetermined resistance and maintain its set position.

[0055] Another connector variant is the rigid angle connector 18, where the star bolt 22 is rotated on the longitudinal plate 21 of the connector according to the required angle, and the distance between the star bolts is adjusted accordingly. This type of connector is more cost-effective to manufacture and more stable than the variably hinged angle connector.

[0056] Another advantage is that various extensions can be screwed into the threaded hole 14, preferably M8, of the connector. One possible extension is adjustable feet 13. Another extension is extension bolts 14, which transform standard connectors such as U-connectors 11, hinged connectors 16, and U4 connectors 15 into the corresponding connectors for wall attachments 32. This allows walls to be built on top of each other without requiring entirely new connector variants; the existing connectors simply need to be extended.

[0057] The invention achieves two key benefits: firstly, it ensures that the connector bodies 200 inserted into the wall panels 8 are held securely, preventing them from falling out during movement while still allowing for easy removal. Secondly, the invention enables the construction of right-angled floor plans using only one connector type, the U-connector 11, for straight, end, and corner connections. For special connections, only one additional connector type, the U4 connector 15, is required, and for angled connections of any angle, only one further connector type, the articulated connector 16, is needed, allowing for tool-free angle adjustment. Depending on the connection requirements, the connector's bolts 22 engage in different holes in the counter plate at the wall corners, thus minimizing the number of connector types required. This significantly simplifies the assembly and disassembly of the partition wall system while maintaining very high stability.

[0058] Fig. Figure 1 of the drawing shows the base body 1 or the counter plate 1 in top view with star holes 2, the outer circle 3, the inner circle 4 and the areas for the base of the elastic elements in the form of the spring tongues 6 or spring parts 6 shown.

[0059] Fig. Figure 2 shows different variations of the shape for the bolt protrusions and for the star-shaped holes in the counter plate. The star-shaped prongs 23, rectangular protrusions 24, and wave-shaped protrusions 25 are arranged between the inner circle 4 and the outer circle 3.

[0060] Fig. Figure 3 shows the counter plate 1 in a three-dimensional view from both sides, with star holes 2 and resilient parts 6. The resilient parts or elastic elements 6 are thicker at the base than at the free ends and are chamfered. The resilient parts protrude slightly into the star holes. A dowel 7 is molded onto the counter plate for fastening it to the wall plate. Furthermore, Figure 3 shows... Fig. 3 also that, in the illustrated embodiment, two receptacles 301 are arranged on the base plate or counter plate 1 for receiving the two connecting bolts 22 of the connector body 200, which is, for example, in Fig. As shown in Figure 4 of the drawing. The opening 301 has an interior space 302 extending from the opening 303, into which the respective connecting bolt 22 can extend.

[0061] Fig. Figure 4 shows a connector body 200 with a longitudinal plate or a base body 21, on which two connector bolts 22 are integrally formed, resulting in a U-shaped configuration of the connector body 200 in the form of the illustrated U-connector 11. Fig. Figure 4 shows the U-connector 11 with two connector bolts or pins 22, on which the projections are formed as star-shaped teeth 23, which are chamfered at the top. The two pins are integrally formed on the base body or the longitudinal plate 21. The longitudinal plate has a circumferential groove 27 for engagement. The pins have a threaded hole 14. The threaded hole extends completely through the pins 22.

[0062] Fig. Figure 5 shows a wall plate 8 with a milled groove 9, round holes 28, and a dowel bore 20 for the base body 1 or the counter plate 1, before the counter plate 1 is firmly connected to the wall via the dowel recess 10. It also shows a U-connector 11 before it is inserted into the wall, and likewise the counter plate 1 from the underside with the spring elements 6. Fig. Figure 5 also shows the connecting device 400 with the receiving body 300 and the connector body 200.

[0063] Fig. Figure 6 shows several wall panels or wall elements 8 with U-connectors 11, before these are inserted into the base body or the counter plate 1, thus connecting the wall panels 8. Some of the U-connectors 11 are extended with extension bolts 12 or adjustable feet 13 in the threaded hole 14. A U4 connector 15 with four star bolts is also shown.

[0064] Fig. Figure 7 shows wall panels 8 with hinged connectors 16; the upper connector is shown as an exploded view with hinge axes 17. The hinge axes form the pivot joint of the connector.

[0065] Fig. Figure 8 shows rigid angle connectors 18, here at 60°, and wall panels 8 positioned at the corresponding angle. The star bolts 26 are fixedly twisted at an angle and molded or attached to the longitudinal plate 21 of the connector. The distance between the angled star bolts 26 is correspondingly greater than in normal, straight U-connectors.

[0066] Fig. Figure 9 shows an application example with assembled wall panels 8, with U-connectors 11 and U-connectors with mounting bolts 19. The upper wall panels 32 are inserted with the star holes in their counter plates onto the mounting bolts 19 of the connectors below.

[0067] Fig. Figure 10 shows an application example with assembled large wall panels 8, with U-connectors 11 and hinged connectors 16.

[0068] Finally, it shows Fig. 11 a perspective top view from below of the base body or the counter plate 1 with the elastic elements 6 arranged at the opening 303 and the respective contact surface 304 on the spring tongue or the elastic element 6.

[0069] With regard to features of the invention not explained in detail above, explicit reference is made to the patent claims and the drawing. Reference symbol list 1. Base body of the receiving body, counter plate 2. Star-shaped hole, shaped hole, star-shaped hole 3rd outer circle 4. Inner circle 5. Area for the elastic spring parts 6. Springy parts, elastic elements 7. Dowel 8. Wall panel, wall element 9. Milling 10. Dowel shaping 11. U-connector 12. Mounting bolt 13. Adjustable feet 14. Threaded hole 15. U4 connector 16. articulated connectors 17. Joint axes 18. rigid angle brackets 19. U-connector with top bolt 20. Dowel drilling 21. Base body of the connector body, longitudinal plate 22. Bolts, shaped bolts, star bolts, connecting bolts 23. Star-shaped points 24. rectangular protrusions 25. wavy bulges 26. Star bolts twisted at an angle 27. Fold on longitudinal panel 28. Round holes, recess 29. Wall corners 30. Edges of the bulge 31. Area for spring parts 32. upper wall panels 200. Connector body 221. first section 222. second section 223. Intervention elements 224th joint 300. Recording body 301st recording 302. Interior 303rd opening 304. Plant area 305. Perimeter wall 400. Connecting device

Claims

[1] Connecting device (400) for detachably connecting plate-shaped wall elements (8), wherein the connecting device (400) has a receiving body (300) and a connector body (200), and the connector body (200) has a base body (21) and at least one connecting bolt (22) arranged on the base body (21) and insertable into a recess (28) of a wall element (8), and the receiving body (300) has at least one receptacle (301) provided with an interior (302) and an opening (303), which can be inserted into the recess (28) of the wall element (8) and receives the connecting bolt (22) at least along a section of its longitudinal extent, characterized by, that the receptacle (301) has resilient elastic elements (6) which surround the interior (302) at least along a partial region of the circumferential extent of the interior (302) and the elements (6) deflect radially outwards when the connecting bolt (22) is inserted into the interior (302) of the receptacle (301) and bear against an outer circumferential surface of the connecting bolt (22). [2] Connecting device (400) according to claim 1, characterized by , that the resilient elastic elements (6) are arranged on a base body (1) of the receiving body (300) and surround the opening (303) of the base body (1) leading into the interior (302) and are arranged at a distance from each other. [3] Connecting device (400) according to claim 1 or 2, characterized by, that the resilient elastic elements (6) are designed as spring tongues (6) and have a contact surface (304) facing the interior (302) on which the connecting bolt (22) can be detachably brought into contact. [4] Connecting device according to one of the preceding claims, characterized by , that the opening (303) leading into the interior (302) has a configuration that differs from a circular configuration in a top view. [5] Connecting device according to one of the preceding claims, characterized by , that the opening (303) has a circumferential wall (305) which surrounds the opening (303) and the circumferential wall (305) has a cross-sectionally tapered configuration towards the interior (302). [6] Connecting device according to one of the preceding claims, characterized by, that the connecting bolt (22) has an elongated configuration and has a first section (221) with a configuration different from a circular configuration and a second section (222). [7] Connecting device according to claim 6, characterized by , that the first section (221) on the outside has intervention elements (223) provided for intervention with the opening (303), the cross-sectional area of ​​which decreases from the base body (21) in the direction of the second section (222). [8] Connecting device according to claim 6 or 7, characterized by , that the first section (221) has a shape and area complementary configuration to the configuration of the opening (303). [9] Connecting device according to any one of claims 4 to 8, characterized by, that the opening (303) in the top view has an inscribed inner circle, on the circumference of which radially outward extending protrusions are arranged, which are provided equidistant or non-equidistant to each other. [10] Connecting device according to one of the preceding claims, characterized by , that the connector body has two base bodies (21) which are arranged axially fixed and pivotable relative to each other by means of a joint (224), wherein at least one connecting bolt (22) is arranged on each base body (21). [11] Partition wall with at least two plate-shaped wall elements (8), characterized by a connecting device according to one of the preceding claims. [12] Partition wall according to claim 11, characterized by at least one recess (28) arranged on at least one end face of the wall element (8), which is designed for the arrangement of the receiving (301) of the receiving body (300). [13] Partition wall according to claim 11 or 12, characterized by , that the recess (28) has a diameter which corresponds at least largely to a descriptive outer circle (3) of the openings (303) of the base body (1) and / or to the descriptive outer circle (3) of the bolts (22).

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