Device for secure and quick fastening of a standpipe in the shaft by means of a developed locking and clamping mechanism

Abstract

Standpipe holder with a telescopically adjustable structure, characterized in that a snap lock (8) for quick adjustment and a clamping mechanism are provided, in which by rotating the outer tube (1) by means of threaded bushings pressed into both tubes (1) and (2) a threaded rod (on (5) and (5')) with opposite threads is moved, whereby two clamping jaws (5) and (5') are pressed apart simultaneously.

Description

[0001] In Baden-Württemberg, a standpipe is used to draw water from the drinking water network. After the access shaft is opened, this is screwed onto a hydrant. Since the standpipes are 1.90 meters long in most regions, they must be secured with a standpipe holder for safety reasons.

[0002] Pressure surges, for example caused by booster pumps or abrupt water releases, as well as collisions, can lead to a break at the connection point due to the high leverage of the standpipe. In the worst case, this results in a failure of the water supply and contamination of the drinking water.

[0003] A standpipe holder reliably prevents these risks.

[0004] The current / existing standpipe holder has a base body, clamping jaws and an extendable thread on which a claw nut sits. To secure the current version of the standpipe holder in the shaft, the claw nut must be screwed back onto the base after the thread has been pulled out, so that the standpipe holder can be clamped in the shaft. This process is very inefficient (time-consuming) and laborious.

[0005] The invention specified in claim 1 addresses the problem of creating a standpipe holder that enables more effective (faster) and simpler assembly.

[0006] This problem is solved by the features listed in claim 1. The invention achieves that the quick-adjustment of the standpipe holder pre-tensions it and allows it to be fully clamped in the shaft by means of the clamping mechanism. Additionally, an anti-rotation device is provided, which prevents the inner tube (2) from rotating when the clamping mechanism is tightened. This device is achieved by attaching the locking mechanism (14) inside the outer tube (1). Because the inner tube has a flattened side, an unused space is created between the outer and inner tubes. The locking mechanism is installed precisely in this space, positively locking the inner tube and thus allowing axial, but not rotational, movement. This keeps the inner tube stable and rotationally fixed during the clamping process, enabling secure and controlled clamping in the shaft.

[0007] The standpipe can then be attached to the standpipe bracket (12) and the mounting (6) secured using the star screw (10). After completing all these steps, the standpipe is securely fixed in the shaft.

[0008] The function and application of the invention will be explained using the following: Fig. 1 to 4 explained. They show: Fig. 1. The standpipe holder in the top view, Fig. 2. The standpipe holder in a 3D view, Fig. 3. Sectional view of the locking mechanism (quick adjustment). Fig. 4 Simplified representation of the standpipe holder in use.

[0009] In Fig. 1 and Fig. Section 2 shows the construction of the standpipe holder in more detail. Fig. 3 will be: - the function described in claim 5 is evident. When the inner tube (2) is pulled out, the lever (13) is pushed upwards due to the chamfer on the locking lug and can thus be pulled out without actuating the lever. - the function described in claim 6 is evident. When the inner tube (2) is retracted, pressure is applied to the locking lug of the lever (13), but the compression spring (15) prevents the lever from being pushed upwards. - the arrangement of the fastening (14) described in claim 7, which simultaneously serves as a rotation protection device for the inner tube (2). Reference symbol list 1 outer pipe 2 inner tubes (with locking pattern) 3 round sockets (left-hand thread) 4 D-shaped sockets (right-hand thread) 5 clamping jaws (left-hand thread) 5' Clamping jaw (right-hand thread) 6. Mounting the standpipe bracket 8 Snap-in fastener --- Consisting of fastener, lever, and spring 10 star grip 12 Standpipe bracket 13 levers 14 Fastening Snap Fastener 15 compression spring 16 Cylinder pin 17 Shaft 18 Standpipe holders 19 Standpipe

Claims

[1] Standpipe holder with a telescopically adjustable structure, characterized by , that a quick-adjustment locking mechanism (8) and a clamping mechanism are provided, in which, by turning the outer tube (1) by means of threaded bushings pressed into both tubes (1) and (2), a threaded rod (at (5) and (5')) with opposite threads is moved, thereby pressing two clamping jaws (5) and (5') apart simultaneously. [2] Standpipe holder according to claim 1, characterized by , that the locking mechanism (8) is a spring mechanism engaging in several locking holes integrated into the inner tube (2). [3] Standpipe holder according to claim 1, characterized by , that the clamping mechanism is clamped into the shaft by the symmetrical arrangement of the threads when the outer tube (1) is rotated. [4] Standpipe holder according to one of the preceding claims, characterized bythat the bushings (3) and (4) are pressed into the outer tube (1) and the inner tube (2) respectively in a force-fit manner. [5] Standpipe holder according to one of the preceding claims, characterized by , that the inner tube (2) is automatically adjustable via a chamfer on the lever of the locking mechanism when being pulled out, without active actuation of the lever (13). [6] Standpipe holder according to one of the preceding claims, characterized by , that retraction of the inner tube (2) is only possible when the lever is manually operated against the force of the compression spring (15). [7] Standpipe holder according to one of the preceding claims, characterized by , that the fastening of the locking mechanism (14) inside the outer tube (1) is designed in such a way that it simultaneously acts as a rotation lock for the inner tube (2).

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