Device for shutting off a pipeline

Abstract

A device (1) for shutting off a pipeline, comprising a shut-off valve (2) having a housing (3) with a flow channel (4) and an adjustable shut-off part (5) positioned in the flow channel (4), as well as a preferably latchable handle (6) operatively connected to the shut-off part (5) for adjusting the shut-off part (5), wherein a locking disc is connected in a rotationally fixed manner to the housing (3), said locking disc having a central hole (8) into which a connecting piece (9) of the handle (6) is at least partially inserted, through which the handle (6) is connectable or connected to the shut-off part (5), wherein the handle (6) is adjustable relative to the locking disc, specifically into a first end position, in which the shut-off part (5) operatively connected to the handle (6) is adjusted to an open position, and a second end position, in which the shut-off part (5) is adjusted to a closed position,and is adjustable and lockable in intermediate positions between the open position and the closed position, characterized in that the locking disc is a sensor locking disc (7) which has a first end position stop for the first end position with a first sensor (10) and / or a second end position stop for the second end position with a second sensor (11), and the handle (6) has at least one trigger (12) which communicates with the first and / or the second sensor (10, 11) in the first or second end position of the handle (6), wherein the first and / or the second sensor (10, 11) is connected to a signal transmitter.

Description

[0001] The invention relates to a device for shutting off a pipeline, comprising a shut-off valve which has a housing with a flow channel and an adjustable shut-off part positioned in the flow channel and a lockable handle which is operatively connected to the shut-off part and is used to adjust the shut-off part, wherein a locking disc is connected to the housing in a rotationally fixed manner and has a central hole into which a connecting piece of the handle is inserted, with which the handle is or can be connected to the shut-off part, wherein the handle is adjustable relative to the locking disc, specifically into a first end position in which the shut-off part which is operatively connected to the handle is adjusted into an open position, and a second end position in which the shut-off part is adjusted into a closed position, and is adjustable and lockable in intermediate positions between the open position and the closed position.

[0002] Such devices are widely known in the prior art. The shut-off valve is installed in a pipeline in its desired position and positioned such that a flow channel formed in the housing of the valve forms part of the pipeline. The shut-off part, with which the degree of opening of the flow channel can be adjusted, is adjustably mounted on the housing of the shut-off valve. To adjust the shut-off part, the device has a handle that is operatively connected to the shut-off part, via which the shut-off part can be adjusted to various open positions. In addition, such devices are known to have a locking disc with an approximately round, relatively flat shape, in the center of which a through hole is provided.The locking disc is usually fastened to a corresponding connection area of ​​the housing on the valve in a rotationally fixed manner, with a connecting element, for example a stub shaft, of the shut-off part protruding from the connection area of ​​the housing and at least partially protruding into the perforation. In the desired position, the handle is inserted into the central perforation with a connecting piece and connected to the connecting element, in particular the stub shaft, of the shut-off part. The handle is rotatable relative to the locking disc, with the handle being adjustable to a first end position in which the shut-off part is adjusted to a fully open position and the flow channel is maximally open. The handle is adjustable to a second end position in which the shut-off part is adjusted to a closed position. Various intermediate positions can also be set between the end positions.In the end positions and the intermediate positions, the handle is held in a latching position on the locking disc, so that the handle and the shut-off part connected to it are secured in their position.

[0003] Such devices are installed, for example, in pipelines in industrial manufacturing processes or in heating systems. Often, it is not possible for the operator to determine the end position of the handle, i.e., whether the shut-off part is fully open or closed. This is necessary for automated processes, as a faulty valve condition can lead to problems in the process.

[0004] The object of the invention is to provide a device of the generic type which overcomes the disadvantages known in the prior art and which in particular offers the possibility of correctly detecting the end positions of the handle and with it the position of the shut-off part, or more precisely, of correctly displaying them in a system control system.

[0005] In addition, the device should be cost-effective to manufacture and have an extremely compact design so that only a small amount of installation space is required.

[0006] To achieve the object, the invention proposes that the locking disc is a sensor locking disc which has a first end position stop for the first end position with a first sensor and / or a second end position stop for the second end position with a second sensor and the handle has at least one trigger which communicates with the first and / or the second sensor in the first or the second end position of the handle, wherein the first and / or the second sensor is connected to a signal generator.

[0007] At least one sensor is arranged in the sensor locking disc, which detects at least one of the two end positions of the handle and signals the reaching of the corresponding end position via a signal generator connected to the sensor. Preferably, two sensors are provided in the sensor locking disc, with a first sensor serving to detect the first end position and a second sensor serving to detect the second end position. The first sensor or the second sensor is alternatively activated by at least one trigger, which is formed or attached to components of the handle, and the reaching of the first or second end position is signaled by a signal generator connected to the sensor.

[0008] It is preferably provided that the connecting piece of the handle has at least one trigger.

[0009] The handle, together with the connecting piece and the trigger arranged on it, is inserted into the central hole of the sensor locking disc. The sensor or sensors are arranged in the sensor locking disc in such a way that the trigger arranged in or on the connecting piece communicates with a sensor in at least one of its end position positions. Preferably, a first sensor is provided in the sensor locking disc for detecting the first end position and a second sensor is provided for detecting the second end position. With this design, no additional components are required to or in which the trigger or sensors are attached, which simplifies the installation of the sensor locking disc and the handle on the fitting. Furthermore, such a design can be manufactured cost-effectively.

[0010] Alternatively, it is preferably provided that the handle has a ring which is plugged onto the connecting piece and can be rotated together with the handle relative to the sensor locking disc, wherein the ring has the at least one trigger.

[0011] The ring can be connected to the handle. Alternatively, the ring can also be attached to a shaft stub of the shut-off part.

[0012] The connecting piece of the handle, together with the ring, is inserted into the central hole, with the ring having the trigger(s) in or on its outer surface facing the hole wall. With this design, for example, conventional, already in-service handles can be reused, onto which the ring can be attached and which, together with the ring, can be inserted into the hole of the sensor locking disc.

[0013] In addition, it is preferably provided that the signal generator is an optical signal generator or an acoustic signal generator or an optical-acoustic signal generator.

[0014] The signal generator displays the signal from the corresponding sensor.

[0015] It is preferably provided that the first sensor and / or the second sensor is a mechanical sensor, wherein the trigger for activating the sensor is designed in the form of a projection or a nose on the handle or the ring.

[0016] When one of the end positions is reached, the projection of the handle activates the sensor by touching a mechanically actuated contact element of the sensor, in particular a lever, button or switch.

[0017] Alternatively, it is preferably provided that the first sensor and / or the second sensor is an inductive sensor, wherein at least one trigger for activating the sensor is preferably a metal pin, a metal plate or a metal ball, which is formed or fastened in or on components of the handle, wherein upon reaching one of the end positions, the metal on or in the handle activates the sensor and the reaching of the end position is signaled.

[0018] The invention is not limited to the sensor types mentioned as examples. Any other sensors and suitable triggers for their activation can be used.

[0019] Embodiments of the device according to the invention are shown in the figures and explained in more detail below.

[0020] It shows: Fig. 1 a device in an oblique view; Fig. 2 a first embodiment of a sensor locking disc in plan view; Fig. 3 the sensor locking disc in a diagonal view from above; Fig. 4 a second embodiment of a sensor locking disc in plan view; Fig. 5 the sensor locking disc in a diagonal view from above; Fig. 6 a handle in view from diagonally above Fig. 7 the handle in view from below.

[0021] Fig. 1 shows a device 1 for shutting off a pipeline, comprising a shut-off valve 2, wherein the shut-off valve 2 has a housing 3 with a flow channel 4 and an adjustable shut-off part 5 positioned in the flow channel 4 as well as a latchable handle 6 connected to the housing 3 and operatively connected to the shut-off part 5 for adjusting the shut-off part 5.

[0022] In addition, a sensor locking disc 7 is connected to the housing 3 in a rotationally fixed manner. The sensor locking disc has a central hole 8 into which a connecting piece 9 of the handle 6 is inserted, through which the handle 6 is connected to the shut-off part 5. The handle 6 is adjustable relative to the sensor locking disc 7, specifically to a first end position in which the shut-off part 5 operatively connected to the handle 6 is adjusted to an open position, and a second end position in which the shut-off part 5 is adjusted to a closed position. In addition, an adjustment can be set in intermediate positions between the fully open position and the closed position. The handle 6 locks in the set position with locking teeth 15 in locking grooves 17 of the sensor locking disc 7, thus securing its set position.The locking teeth 15 can be lifted by a pressure-operated latch 16 to unlock the handle 6, so that they no longer engage with the locking grooves 17 and the handle 6 is adjustable.

[0023] The sensor locking disc 7 has a round, relatively flat disc shape in which the center hole 8 is provided. As in Fig. As shown in Figure 1, the sensor locking disc 7 is rotationally fixed in the desired position to a connection area of ​​the housing 3. A shaft stub of the shut-off part 5 protrudes from the connection area of ​​the housing 3, protruding into the central hole 8 and connecting the handle 6 to its connection piece 9.

[0024] The sensor locking disc 7 has a first end position stop for the first end position with a first sensor 10 and a second end position stop for the second end position with a second sensor 11, wherein the sensors are arranged in the housing of the sensor locking disc 7. The sensors are shown, for example, in Fig. 4 as dashed lines within the sensor locking disc 7. The housing of the sensor locking disc is preferably made of plastic. The handle can also be made of plastic or metal. Other materials and material combinations are conceivable and included.

[0025] A first embodiment of the invention provides that a trigger 12 is provided in the connecting piece 9 of the handle to activate the sensors 10, 11 in the corresponding end positions of the handle 6. When the handle 6 is adjusted, it is rotated relative to the sensor locking disc 7, and the trigger 12 activates the first sensor 10 upon reaching the first end position and the second sensor 11 upon reaching the second end position.

[0026] An alternative embodiment provides for the activation of the sensors 10, 11, that the handle 6 has a ring 13, which, together with the handle 6, is connected to the shaft stub of the shut-off part 5. For this purpose, the ring 13 has, for example, an opening adapted to the cross-section of the shaft stub, which is square in the exemplary embodiment and through which the shaft stub, which is designed as a square, is passed.

[0027] Two triggers 12 are integrated into the ring 13. When the handle is adjusted, the ring 13 is adjusted together with the handle 6 relative to the sensor locking disc 7. Upon reaching the first end position, a first trigger 12 activates the first sensor 10, while upon reaching the second end position, a second trigger activates the second sensor 11.

[0028] The Fig. 2, Fig. 3 and Fig. 6 show a sensor locking disc 7 and a handle 6 of the first embodiment. Fig. The handle shown in Figure 6 has a metal nose as the trigger 12, which is arranged on the connecting piece 9. The handle 6 is inserted with the connecting piece 9 and the trigger 12 arranged thereon into the center hole 8 of the Fig. 2 or Fig. 3 shown sensor locking disc 7 is inserted.

[0029] The sensors 10, 11 arranged in the sensor locking disc 7 are, for example, inductive sensors positioned in the sensor locking disc 7 in such a way that the trigger 12 arranged on the connecting piece 9 alternatively activates the first sensor 10 in the first end position or the second sensor 11 in the second end position. The sensors 10, 11 are connected to corresponding signal transmitters that emit a signal when the sensor is activated.

[0030] The Fig. 4 and Fig. 5 show a sensor locking disc 7 and a ring 13 of the second embodiment, wherein also a handle according to Fig. 6 can be used, however, the trigger 12 is not designed as a projection of the handle 6, but two triggers 12 are integrated in the ring, which can be plugged onto the connecting piece 9 of the handle 6. The connecting piece 9 of the handle 6 is then inserted together with the ring 13 into the center hole 8 of the sensor locking disc 7. The ring 13 is inserted into the center hole 8 in the desired position, which in the Fig. 4 and Fig.5 (the handle is not shown). In this desired position, the outer surface of the ring 13 rests against the wall areas of the central hole 8 with some play. The triggers 12 integrated into the ring 13 are two metal balls that activate the inductive sensors 10, 11 as soon as an end position is reached, with a first ball in the first end position of the handle 6 activating the first sensor 10 and a second ball in the second end position of the handle 6 activating the second sensor 11. With this configuration, for example, the conventional handles already in operation can continue to be used.

[0031] The ring 13 has a square through hole 14, which in the desired position is penetrated by the shaft stub of the shut-off part 5, which also has a square cross-section.

[0032] Different types of signaling devices can be used, for example optical, acoustic or optical-acoustic signaling devices.

[0033] The invention is not limited to the embodiment, but is variable in many ways within the scope of the disclosure.

[0034] All new individual and combination features disclosed in the description and / or drawing are considered essential to the invention.

Claims

[1] Device (1) for shutting off a pipeline, comprising a shut-off valve (2) having a housing (3) with a flow channel (4) and an adjustable shut-off element (5) positioned in the flow channel (4), as well as a preferably detentable handle (6) operatively connected to the shut-off element (5) for adjusting the shut-off element (5), wherein a detent disc is non-rotatably connected to the housing (3) and has a central perforation (8) into which a connecting piece (9) of the handle (6) is at least partially inserted, through which the handle (6) can be connected to or is connected to the shut-off element (5), wherein the handle (6) is adjustable relative to the detent disc into a first end position in which the shut-off element (5) operatively connected to the handle (6) is moved into an open position, and a second end position in which the shut-off element (5) is moved into a closed position is,and is adjustable and lockable in intermediate positions between the open position and the closed position, characterized by , that the detent disc is a sensor detent disc (7) which has a first end position stop for the first end position with a first sensor (10) and / or a second end position stop for the second end position with a second sensor (11) and the handle (6) has at least one trigger (12) which communicates with the first and / or the second sensor (10,11) in the first or the second end position of the handle (6), wherein the first and / or the second sensor (10,11) is connected to a signal transmitter. [2] Device according to claim 1, characterized by , that the connecting piece (9) of the handle (6) has at least one trigger (12). [3] Device according to claim 1, characterized by, that the handle (6) has a ring (13) which is attached to the connecting piece (9) and can be rotated together with the handle (6) relative to the sensor locking disc (7), wherein the ring (13) has the at least one trigger (12). [4] Device according to any one of claims 1 to 3, characterized by that the signal transmitter is an optical signal transmitter, an acoustic signal transmitter, or an optical-acoustic signal transmitter. [5] Device according to any one of claims 1 to 4, characterized by , that the first sensor (10) and / or the second sensor (11) is a mechanical sensor, wherein the trigger (12) for activating the sensor (10, 11) is formed in the form of a protrusion or a nose on the handle (6) or the ring (13). [6] Device according to any one of claims 1 to 4, characterized by, that the first sensor (10) and / or the second sensor (11) is an inductive sensor, wherein the at least one trigger (12) for activating the sensor (10,11) is preferably a metal pin, a metal plate or a metal ball which is formed or attached in or to components of the handle (6).

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