Securing clip for Storz couplings. Curved metal angle with cutouts for fastening with cable ties.

Abstract

A locking clamp (1) for preventing rotation of two coupled Storz coupling halves (12, 13), characterized in that the locking clamp (1) is designed as a one-piece, essentially U-shaped component, which is designed to span the connection point of the two coupling halves in a bridge-like manner, wherein the locking clamp (1) has at least one through-opening (5), preferably in the form of a slot, in its upper area (2), which serves to receive and guide a separate, external traction element (8), by means of which the locking clamp can be frictionally secured onto the coupling halves.

Description

Technical field:

[0001] The invention relates to a device for subsequently securing coupled hose connections of the "Storz" system (or identical lug couplings) against unintentional loosening by twisting, as can occur, for example, due to vibrations during operation. State of the art:

[0002] It is known that Storz couplings, which are locked by a rotary motion, can rotate back and open under unfavorable circumstances (e.g. vibrations on pumps or vehicles, pressure surges in the hose).

[0003] From DE 20 2017 005 534 U1, an anti-rotation device is known that solves this problem by enclosing the coupling with a solid clamp. This known solution consists of two heavy stainless steel casting halves connected by an integrated joint (hinge) and mechanically tightened on the opposite side by means of an integrated screw closure. This design is extremely robust, but due to the casting process and the need for moving mechanical components (joint, screw closure), it is complex to manufacture, has a high weight, and is comparatively complicated to handle.

[0004] The underlying problem (task of the invention): The invention is based on the objective of providing an anti-rotation device for Storz couplings that fulfills the same purpose (preventing unintentional loosening) but is distinguished from the aforementioned prior art by a significantly simpler design. The device should be cost-effective to manufacture as a mass-produced item, have a low weight, contain no integrated moving mechanisms, and be quick and intuitive to install – even retroactively. Solution to the problem:

[0005] This problem is solved according to the invention by a retaining clip with the features of claim 1.

[0006] The core idea of ​​the invention is to design the securing device not as a multi-part cast clamp with its own locking mechanism that completely encloses the coupling. Instead, a one-piece, bridge-like clamp is proposed, preferably manufactured as a bent part from sheet metal.

[0007] This clamp is placed over the joint of the two coupled Storz coupling halves. The necessary holding force for securing the coupling is not generated by the clamp itself, but by a separate, external tensioning device (such as a robust cable tie, hook-and-loop fastener, or metal tension band) that is guided through designated openings in the clamp and encircles the entire coupling. The clamp acts as a positive-locking bridge element between the coupling halves, while the external tensioning device creates the necessary frictional connection.

[0008] Detailed description of implementation examples: The invention is explained in more detail below with reference to the drawings. The drawings (which you must attach as a separate document, e.g., your line drawings) show: Fig. 1: A perspective view of the safety clip according to the invention as a single component. Fig. 2: The safety clip made of Fig. 1 in the mounted state on a Storz coupling, secured by an external traction device.

[0009] As in Fig. As shown in Figure 1, the retaining clip (1) is designed as a one-piece component, preferably stamped and bent from a corrosion-resistant metal sheet (e.g., stainless steel). It has a substantially U-shaped cross-section, consisting of an upper cover plate (2) and two lateral legs (3, 4) that project downwards from the cover plate.

[0010] The cover plate (2) is essentially flat and has at least one, in the example shown two, parallel, elongated slot-like slots (5). These slots serve to guide the external tensioning element.

[0011] The lower edges (6) of the side legs (3, 4) are not straight, but have a concave contour adapted to the outer radius of the Storz coupling socket to ensure a secure, tilt-free support.

[0012] In order to enable mounting on couplings that have attachments such as eyelets for blind cap chains, at least one of the side legs (3, 4) is provided with a recess or notch (7).

[0013] Fig.Figure 2 illustrates the operating principle. The clamp (1) is positioned so that it bridges the gap between the two coupling halves (10, 11). An external tensioning element (8), shown here as a cable tie, is guided through the slots (5) and under the coupling. Tensioning this tensioning element presses the clamp firmly onto the surfaces of both coupling halves. Since the clamp rests on both halves simultaneously, any relative rotation of the halves is effectively prevented. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 20 2017 005 534 U1

[0003]

Claims

[1] Safety clamp (1) for preventing rotation of two coupled Storz coupling halves (12, 13), characterized by , that the locking clamp (1) is designed as a one-piece, essentially U-shaped component, which is designed to bridge over the connection point of the two coupling halves, wherein the locking clamp (1) has at least one through-opening (5) in its upper area (2), preferably in the form of a slot, which serves to receive and guide a separate, external traction element (8), by means of which the locking clamp can be frictionally secured to the coupling halves. [2] Safety clip according to claim 1, characterized by that it is manufactured as a bent part made of sheet metal, in particular stainless steel sheet metal. [3] Safety clip according to any one of the preceding claims, characterized by, that it has an upper cover plate (2) from which two lateral legs (3, 4) project, the lower edges (6) of these legs having a concave contour adapted to the outer radius of the coupling halves to be secured. [4] Securing clip according to claim 3, characterized by , that two parallel elongated holes (5) are provided in the cover plate (2) for guiding the external traction element. [5] Safety clip according to claim 4, characterized by , that at least one of the lateral legs (3, 4) has a recess (7) which is geometrically designed so that, in the assembled state, it overlaps an overhang present on the coupling without contact.

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