Shut-off mechanism with support device

Abstract

The present invention relates to a shut-off mechanism, particularly a valve, with a support device for a flowable medium, comprising at least one locking element (3, 20) capable of reaching an open and closed position and a seat (4, 21), particularly a valve seat, for the at least one locking element (3, 20). In this shut-off mechanism (1), the intermediate position of the locking element (3, 20) is determined by the support device (32, 36), particularly in the intermediate position the locking element (3, 20) contacts the support device (32, 36) and / or is spaced apart from the seat (4, 21).

Description

Technical Field

[0001] The present invention relates to a shut-off mechanism for a flowable medium, the shut-off mechanism comprising at least one locking element capable of reaching an open position and a closed position and a seat for said at least one locking element.

[0002] The present invention also relates to a stop mechanism operating device having the stop mechanism described herein, and in particular a valve operating device having the valve described herein. Background Technology

[0003] The shut-off mechanism can be specifically configured as a valve, wherein the seat is configured as a valve seat.

[0004] The shut-off mechanism is generally known from practice, for example, in the form of a valve, sliding element, valve or faucet.

[0005] A shut-off mechanism is used to release, stop, and / or throttle the flow of a flowable medium, particularly a fluid, through an opening adjacent to the seat of the shut-off mechanism. For this purpose, the shut-off mechanism can be made to achieve different states.

[0006] In the open position of the shut-off mechanism, particularly the valve, where maximum flow of the flowable medium through the opening adjacent to the seat of the shut-off mechanism is possible, a locking element is provided in the open position. In the open position, the locking element is positioned at a distance from the seat such that the flowable medium can pass through the opening adjacent to the seat of the shut-off mechanism without being affected by the locking element or substantially without being affected by the locking element.

[0007] In the closed position of a shut-off mechanism, particularly a valve, where it is impossible or substantially impossible for the flowable medium to pass through the opening adjacent to the seat of the shut-off mechanism, a locking element is positioned in the closed position. In the closed position, the locking element is positioned in a sealing manner on the seat such that the flowable medium cannot or substantially cannot pass through the opening adjacent to the seat of the shut-off mechanism.

[0008] In the prior art, valve-type shut-off mechanisms are known, which can reach either an open or closed position. Such valves are disclosed, for example, in documents DE 195 47 222 A1, EP 0 489 331 B1, US 2021 / 301928 A1, or EP 0 618 988 B1. In such valves, a locking element is not provided, and is positioned in an intermediate position between the open and closed positions, wherein throttling of the flowable medium through an opening adjacent to the seat of the shut-off mechanism is possible.

[0009] It has been shown that in one state of the shut-off mechanism, where the locking element is positioned in an intermediate position between the open and closed positions, it is possible for the flowable medium to pass through a throttled flow through an opening adjacent to the seat of the shut-off mechanism, generating noise from the shut-off mechanism. This noise can be perceived as interference. Therefore, it may be worthwhile to avoid this noise. Summary of the Invention

[0010] The purpose of this invention is to provide a stop mechanism that produces no noise or produces minimal noise when the locking element is in the middle position.

[0011] This objective is achieved by the subject matter characterized by the independent claims. Advantageous design solutions are known from the dependent claims.

[0012] The features listed in the dependent claims can be combined with each other in any technically meaningful manner and define other embodiments of the invention, provided that such combinations have the features of at least one independent claim. Furthermore, the features set forth in the claims are further clarified and elucidated in the specification, wherein other preferred embodiments of the invention are shown.

[0013] To achieve the stated objective, the present invention proposes a subject matter having the features of claim 1. Specifically, in accordance with the present invention, in a stop mechanism of the type described at the beginning, to achieve the stated objective, the intermediate position of the locking element is determined by a support device.

[0014] The locking element can then be moved to an intermediate position between the open and closed positions, as described above, wherein the intermediate position is defined by its functional and / or spatial relationship with the support device. The support device is a device that constitutes and / or has support elements.

[0015] In particular, the locking element can contact the support device in the intermediate position. In other words, the support device can be used as a support for the locking element located in the intermediate position.

[0016] Alternatively or additionally, the locking element may be spaced apart from the seat in an intermediate position. Specifically, in the intermediate position, the locking element is supported at or on the support device and does not contact the seat. Preferably, the distance between the locking element and the seat in the intermediate position is 0.05 mm to 0.2 mm.

[0017] With the locking element positioned at an intermediate point, particularly spaced from the seat, the flowable medium can pass through the opening adjacent to the seat of the shut-off mechanism. The predetermined distance between the locking element and the seat in the intermediate position allows for a reduced flow rate compared to the open position of the locking element. Based on the preferably physical contact between the locking element and the support device, the locking element is reliably supported and / or arranged such that its movement and, particularly, vibration are restricted. This significantly reduces or even eliminates noise generation.

[0018] In practice, the stop mechanism may have an adjusting mechanism and / or a regulating device, by means of which the locking element or a component of the locking element and the seat can achieve an adjustable interval.

[0019] Adjustment mechanisms can be used, in particular, to move the locking element between its open and closed positions.

[0020] The regulating device can be used, in particular, to allow the locking element and the seat to move at a variablely adjustable interval. It is also possible, by means of the regulating device, to move the locking element to an intermediate position. The flow rate of the flowable medium through the opening adjacent to the seat can be adjusted by means of the regulating device, which adjusts the interval between the locking element or a component of the locking element and the seat. The regulating device can therefore be used as a throttling element.

[0021] The regulating device can be configured, in particular, as a rotating mechanical device. The rotating mechanical device has a rotatable operating mechanism, especially a manually operated element, which is connected to a locking element and / or a base by means of a mechanical arrangement. Rotation of the operating device causes the locking element and the base to move relative to each other.

[0022] In practice, at least one component of the locking element that can come into contact with the support device and the support device can be configured to have different elasticities.

[0023] Elasticity is a material property describing elastic deformability. If at least one component of the locking element that is in contact with the support device, or the entire locking element and support device, have different elasticities, then one of these components is more easily deformed than the other. Thus, particularly when the locking element is in contact with the support device, the locking element, its components, and / or the support device can elastically deform. Based on the elastic deformability of at least one of the two mutually contacting components, particularly reliable support of the locking element at or on the support device can be achieved.

[0024] In a preferred embodiment, the locking element may be formed of a material having higher elasticity, i.e., a lower modulus of elasticity, than the material forming the seat. It is also possible, as mentioned above, that only one component of the locking element is formed of a material having higher elasticity than the material forming the seat.

[0025] If the seat has a higher modulus of elasticity and is therefore configured to be more resistant to elastic deformation than the locking element or its components, which are in contact with the support in the intermediate position, then it is also preferable that the support is configured to be more resistant to deformation than the locking element or its components, which are in contact with the support.

[0026] In an alternative to the preferred embodiments described above, in another preferred embodiment, the support device may be formed of a material having higher elasticity than the material forming the locking element. In this case, the seat may also be formed of a material having higher elasticity than the material forming the locking element.

[0027] If one of the aforementioned components is formed of a material with low elasticity, then the component can be formed, for example, of a metal, particularly steel. If one of the aforementioned components is formed of a material with high elasticity, then the component can be formed, for example, of a plastic, particularly an elastomer.

[0028] Additionally or alternatively, at least the components of the locking element that can come into contact with the support device and the support device may be configured to have different rigidities.

[0029] Rigidity describes the deformability of the aforementioned component considering both elasticity and geometric design. Geometric design, in particular, affects rigidity and thus deformability through the surface moment of inertia. Therefore, it is possible that a component made of a material with a small elastic modulus and a high surface moment of inertia is more difficult to deform under higher forces than a component made of a material with a high elastic modulus and a low surface moment of inertia.

[0030] In practice, it is possible that the support device and the locking element form at least two mutually spaced contact points.

[0031] Based on the fact that two or more mutually spaced contact points formed in the intermediate position between the support device and the locking element can be well distributed to the mechanical pressure generated during contact, and / or the locking element can be particularly reliably supported at or on the support device.

[0032] Furthermore, based on the spacing between the contact points, the flowable medium may flow through a cross-section that is, for example, surrounded by locking elements, seats, and support devices at spaced contact points.

[0033] Furthermore, in practice, it is possible that the locking element is at least partially configured as a diaphragm or has a diaphragm.

[0034] In other words, the locking element can be configured as a diaphragm or have a segment configured as a diaphragm. The diaphragm can be a component of a one-piece locking element. Alternatively, the locking element may be configured as a multi-piece element, wherein the locking element has a main body and a diaphragm disposed on the main body.

[0035] In particular, the diaphragm can contact the support device in the middle position.

[0036] A diaphragm is a thin, vibrating component. In particular, diaphragms can be formed from materials with high elasticity and / or have a low moment of inertia, especially under bending stress. Furthermore, the material forming the diaphragm can have a lower modulus of elasticity than the material forming the support structure. Diaphragms can be formed, for example, from plastics, particularly elastomers.

[0037] The locking element can be configured and arranged such that the locking element, together with the diaphragm, is fastened to the wall of the stop mechanism, so that the locking element can be movably connected to the wall within the range of motion of the vibrating diaphragm.

[0038] If the diaphragm is disposed on the body of the locking element, the diaphragm may be formed, in particular, of a material having a lower modulus of elasticity than the material forming the body.

[0039] Alternatively or additionally, if the diaphragm is disposed on the body of the locking element, then the diaphragm and the body can be at least partially movable relative to each other. For example, the diaphragm can be partially connected to the body, wherein the non-connected portions of the diaphragm are movable relative to the body. The diaphragm can, for example, be clamped in a receiving portion formed on the body for the diaphragm by an edge segment. Alternatively or additionally, the diaphragm can be abutted against a portion of the body of the locking element parallel to that edge segment, particularly in a planar manner, wherein that portion of the diaphragm is not connected to that portion of the body. This portion of the diaphragm is therefore movable and, in particular, vibrating.

[0040] The diaphragm may additionally or alternatively be formed on or fastened to the outer edge of the locking element. This outer edge may, for example, surround the body on the peripheral side. The body may be movable, particularly transverse to the plane in which the diaphragm is disposed, because the diaphragm is vibrating transversely to this plane.

[0041] In practice, the diaphragm of the locking element can be supported in an intermediate position between the support device and one of the locking elements or the main body.

[0042] In particular, the diaphragm can be clamped in an intermediate position between the support device and the body of the locking element. Preferably, the body has one or more of the aforementioned sections, to which one and, in particular, said section of the diaphragm loosely rests, wherein, in particular, said section has less deformability, i.e., less elasticity and / or a higher moment of inertia, compared to the section of the diaphragm resting on said section of the body. This component of the body can be configured, in particular, substantially in a disc-like shape.

[0043] In particular, as described above, the support device can have less elasticity and / or higher rigidity than the diaphragm. This makes reliable support, and especially clamping, of the diaphragm possible.

[0044] Alternatively or additionally, the diaphragm may at least partially abut against a section of the body, which is particularly formed of a material having less elasticity than the material forming the diaphragm. This section of the body may, for example, serve as a support for the diaphragm relative to the seat, particularly at the rear, and / or, for example, the diaphragm may be supported on this section in an intermediate position of the locking element. Alternatively or additionally, this section may have higher rigidity and / or be stiffer than the diaphragm.

[0045] In practice, the support device can be constructed as a single piece with the seat.

[0046] The support device and the base are constructed as a single piece, with the support device fixed in position relative to the base. In particular, the base and the support device can be sections or components of a common part of the stopping mechanism, such as the housing of the stopping mechanism. This one-piece construction allows the stopping mechanism to advantageously consist of a small number of components. This is advantageous because it simplifies the assembly of the stopping mechanism and allows the stopping mechanism to have a small number of potentially weak joints.

[0047] Alternatively, in practice, the support device can also be fastened to one or more of the components with seats. Thus, the support device is fixed in position with respect to the seat. This further simplifies the manufacture of the support device and / or the component with the seat.

[0048] In practice, the support device can be configured as a support having at least one contact surface oriented transversely to the direction of movement of the locking element.

[0049] For example, the support device can be configured as a stepped structure or multiple stepped structures.

[0050] Based on at least one contact surface of the support device oriented transversely to the direction of movement of the locking element, the locking element can be moved in the direction of movement to reach an intermediate position particularly easily between the open and closed positions, and therein is simply and reliably supported on the at least one contact surface. If the locking element additionally has, as described herein, a particularly disc-shaped section and a diaphragm section loosely abutting thereon, then the diaphragm section can be clamped in the intermediate position, particularly between the contact surface oriented transversely to the direction of movement of the locking element and the particularly disc-shaped section of the main element of the locking element.

[0051] Alternatively or additionally, the support device may be configured as a pedestal having at least one contact surface oriented parallel to the direction of movement of the locking element. In particular, if at least two mutually spaced contact points are formed between the support device and the locking element in the intermediate position, it is possible that the locking element, and in particular the diaphragm, is clamped between the spaced contact surfaces parallel to the direction of movement as the locking element moves in the direction of movement.

[0052] In practice, in the middle position of the locking element, the first flow cross section can be determined by the support device together and the second flow cross section can be determined by the locking element and the seat, wherein the first flow cross section is larger than the second flow cross section.

[0053] The second flow cross section can be specifically located downstream of the flowable medium according to the prescribed flow direction.

[0054] The first flow cross section may be formed, in particular, by a support device or at least by components of the support device, by one or more components of the locking element adjacent to the support device, and by components of the seat or a member having a seat adjacent to the seat.

[0055] In particular, if the support device is configured as a stepped structure or multiple stepped structures, then the stepped structure or multiple stepped structures can be configured such that, if the locking element is located in the intermediate position, the flowable medium can flow through one or more flow cross sections formed between at least two regions of the stepped structure or between at least two stepped structures. Here, the locking element can be particularly abutted or placed on or on the stepped structure or multiple stepped structures, thereby forming a flow cross section for closing the flowable medium. The sum of the flow cross sections between each of the two regions of the stepped structure or between each of the two stepped structures can, in particular, be at least equal to and preferably greater than the flow cross section formed between the locking element and the seat in the intermediate position. Thus, the flow rate in the intermediate position of the locking element, and in the case of at least one stepped structure, is determined by the second flow cross section between the locking element and the seat.

[0056] In practice, the support device may also be configured to have one or more protrusions.

[0057] The protrusion or the plurality of protrusions can be configured such that, if the locking element is in the intermediate position, the flowable medium can flow through a flow cross-section formed between the locking element and at least two regions of the protrusion, or between at least two protrusions. Here, the locking element can be particularly abutted or placed on or on the one or more protrusions, thereby forming a flow cross-section for closing the flowable medium. The sum of the flow cross-sections between the respective two regions of a protrusion or between the respective two protrusions can, in particular, be at least equal to and preferably greater than the flow cross-section formed between the locking element and the seat in the intermediate position. Thus, the flow rate is determined in the intermediate position of the locking element and, in the presence of at least one protrusion, by a second flow cross-section between the locking element and the seat.

[0058] The protrusion or the plurality of protrusions may additionally or alternatively protrude, particularly from one or the seated member, toward the locking element.

[0059] The protrusion or the plurality of protrusions may protrude from one or the seated member toward the locking element, for example, in a direction oriented parallel to the direction of movement of the locking element. Additionally or alternatively, one or more protrusions may protrude from the seated member in a direction diagonally oblique to and particularly perpendicular to the direction in which the locking element may move.

[0060] The protrusion, or one of the plurality of protrusions, may, for example, be configured as a single or multiple plug-like structures. Alternatively, the protrusion, or the plurality of protrusions, may have at least such a structure.

[0061] If the support device is configured as a stepped structure or multiple stepped structures, then the protrusions can, for example, protrude from at least one stepped structure, or abut against it in the intermediate position of the locking element. In such a case, in particular, the at least one stepped structure and the at least one protrusion can be configured such that, if the locking element is located in the intermediate position, the flowable medium can flow through one or more of the aforementioned flow cross-sections, which are formed between the locking element, at least two stepped structures, and at least two protrusions. Here, the locking element can, in particular, abut or rest against or on the at least one stepped structure and / or at least one protrusion, thereby forming a flow cross-section for closing the flowable medium. The sum of the flow cross-sections between each of the two stepped structures and each of the two protrusions can, in particular, be at least exactly equal to and preferably greater than the flow cross-section formed between the locking element and the seat in the intermediate position. Thus, the flow rate in the intermediate position of the locking element, and in the presence of at least one stepped structure and at least one protrusion, is determined by the second flow cross-section between the locking element and the seat.

[0062] In practice, the locking element may have one or more protrusions.

[0063] The protrusion or the plurality of protrusions may, in particular, protrude toward the support device by a locking element.

[0064] In particular, the diaphragm of the locking element may have one or more protrusions.

[0065] If the locking element has one or more protrusions, particularly those disposed on the diaphragm and / or protruding toward the support device, then it is possible for the locking element to be supported on the support device by means of the protrusions. Thus, substantially the same effect can be achieved as with the protrusions disposed on the support device as described herein. Therefore, a description of the protrusions incorporated into the support device is also clearly referred to.

[0066] In practice, the locking element can be detachably connected to the control element. Specifically, the connection can be mechanical. A detachable connection is both openable and closable.

[0067] In particular, by utilizing control elements, the position of the locking element can be predetermined. The control element can be, for example, a component of adjusting mechanisms and / or regulating devices, or at least mechanically connected to adjusting mechanisms and / or regulating devices.

[0068] The detachable connection between the locking element and the control element can be particularly such that a loose connection exists at least in the intermediate position of the locking element. An additional or alternative detachable connection can be such that a fixed connection exists in the open position and / or closed position of the locking element. A loose connection means that the connection is detachable and closable either actively by operator operation or passively by boundary conditions acting on the locking element and / or the control element. A fixed connection means that the closed connection is openable and closable, particularly actively by operator operation rather than passively by boundary conditions acting on the locking element and / or the control element.

[0069] Loose connections, particularly in the middle position of the locking element, can be achieved, for example, by form-locking and / or force-locking.

[0070] Furthermore, in particular, the locking element and the control element can be held together directly or indirectly by means of a force, preferably acting in the direction of movement of the locking element, when the connection is closed. In other words, if this force is applied, the connection can be closed or closed. If the force is removed, the connection can be open or open.

[0071] If the locking element and the control element are directly held together, then these components can have direct contact with each other. If the locking element and the control element are indirectly held together, then another component can be disposed between the locking element and the control element, and this other component has direct contact with both the locking element and the control element in the case of a closed connection.

[0072] The force that holds the control element and the locking element together can be applied to the control element and / or the locking element, for example, by a mechanical spring and / or by a flowable medium to be controlled by a stop mechanism. Alternatively, this force can be applied electromagnetically.

[0073] Based on the connection between the locking element and the control element described herein, the position of the locking element can be changed by means of the operation of the control element. A detachable connection, particularly loose in the intermediate position of the locking element, is advantageous, especially in the case of a specific type of valve, such as a diaphragm valve with flow rate adjustment, particularly where the flow rate adjustment is achieved by a change in the opening stroke of the diaphragm. Based on the detachable connection, particularly loose in the intermediate position of the locking element, the mutual holding between the control element and the locking element can be relatively weak, thus allowing the control element and the locking element to move relatively relative to each other, at least in the intermediate position of the locking element. If, as in the invention described herein, the control element supports the locking element against the support device in the intermediate position, then the movement between the control element and the locking element in the intermediate position is greatly reduced.

[0074] In practice, the cut-off mechanism can have a compensation device.

[0075] Compensation devices can be used, in particular, to adjust components of mechanical devices.

[0076] The compensation device can be configured, for example, between an operating element—which is operated by an operator to switch the stop mechanism—and, in particular, the control element. The compensation device can be configured to transmit the actuation of the operating element to the control element. For this purpose, the compensation device can have a receiving portion in which the end of the control element or a component mechanically connected to the control element is movably and retractably held.

[0077] The mobility of the end of the control element or the component mechanically connected to the control element within the housing allows the operating element to move beyond the end of the control element's adjustment stroke.

[0078] In practice, a cutoff mechanism can have a main cutoff mechanism and a leading cutoff mechanism. Here, the main cutoff mechanism can be configured to have the aforementioned and / or the following features.

[0079] Alternatively or additionally, the pilot shut-off mechanism may be configured as a shut-off mechanism having the aforementioned and / or subsequent features. In particular, the main shut-off mechanism may be configured as a main valve and / or the pilot shut-off mechanism may be configured as a pilot valve.

[0080] In practice, the stopping mechanism may have a first locking element, a first seat for the first locking element, a second locking element, a second seat for the second locking element, and at least one support device.

[0081] In particular, the first locking element and the first seat can constitute a main shut-off mechanism, particularly a main valve, as described herein, and / or the second locking element and the second seat can constitute a pilot shut-off mechanism, particularly a pilot valve, as described herein. For this purpose, the first locking element can be a main locking element, and the first seat can be a main seat, more preferably a main valve seat. Alternatively or additionally, the second locking element can be a pilot locking element, and the second seat can be a pilot seat, more preferably a pilot valve seat.

[0082] A main shut-off mechanism, particularly a main valve, can be used to release, stop, and / or throttle the flow of a flowable medium through an opening adjacent to the main seat, particularly the main valve seat. A pilot shut-off mechanism, particularly a pilot valve, can be used to release, stop, and / or throttle the flow of a flowable medium through an opening adjacent to the pilot seat, particularly the pilot valve seat.

[0083] By utilizing a pilot shut-off mechanism, particularly a pilot valve, as described herein, it is possible, for example, to use a flowable medium to adjust the main locking element to an open, closed, and / or intermediate position. The switching of this shut-off mechanism can therefore be particularly smooth.

[0084] The pilot locking element and pilot seat, particularly the pilot valve seat, can be configured and arranged such that the pilot locking element, in its closed position, contacts the pilot seat, particularly the pilot valve seat, and closes the opening adjacent to it. In the open position, the pilot locking element can be spaced from the pilot seat, particularly the pilot valve seat, and releases the opening adjacent to it.

[0085] The pilot seat, especially the pilot valve seat, and the opening adjacent thereto may be located on or in the main locking element.

[0086] By utilizing a pilot-operated shut-off mechanism, particularly a pilot valve, it is possible to create a pressure chamber that can be filled with a flowable medium. If the opening of the pressure chamber adjacent to the pilot seat, particularly the pilot valve seat, is closed by a pilot-operated locking element, and the flowable medium flows into the pressure chamber through the open filling opening, then pressure can be generated in the pressure chamber. If the opening of the pressure chamber adjacent to the pilot seat, particularly the pilot valve seat, is not closed by a pilot-operated locking element, and the flowable medium flows out of the pressure chamber through this opening, then the pressure in the pressure chamber can be reduced. As a result, the pressure in the pressure chamber can be adjusted by driving the pilot-operated shut-off mechanism, particularly the pilot valve. This pressure can be used to control the main locking element.

[0087] If a control element is provided, then the main shut-off mechanism, particularly the main valve, and / or the pilot shut-off mechanism, particularly the pilot valve, can be controlled using the control element.

[0088] The intermediate position of the main locking element can be determined by using at least one support device, in particular the main locking element contacts the support device and / or is spaced from the main seat that constitutes the main valve seat in its intermediate position.

[0089] In particular, the shut-off mechanism can have at least two support devices. If the shut-off mechanism has a main shut-off mechanism, particularly a main valve, and a pilot shut-off mechanism, particularly a pilot valve, then support devices can be provided on the main shut-off mechanism, particularly the main valve, and on the pilot shut-off mechanism, particularly the pilot valve. Therefore, the intermediate position of the main locking element and the pilot locking element can be determined by the support devices configured for the respective locking elements. Each of the at least two support devices can have some or all of the features described herein.

[0090] In practice, the locking element can move along the longitudinal axis as specified.

[0091] In particular, the locking element can move along the longitudinal axis of the control element.

[0092] Alternatively or additionally, the shut-off mechanism can be configured as an adjustable throttle valve. The adjustable throttle valve can be particularly linearly adjustable.

[0093] If the shut-off mechanism has a main shut-off mechanism, particularly a main valve, and a pilot shut-off mechanism, particularly a pilot valve, then the main shut-off mechanism can be configured as a throttle valve.

[0094] A throttle valve can be understood as a valve that allows for variable adjustment of the flow rate of a flowable medium through an opening adjacent to the seat of the throttle valve. For this purpose, the locking element of the throttle valve can be particularly linearly movable.

[0095] In practice, the adjusting mechanism and / or the adjusting device may be configured to have a push-type locking mechanism.

[0096] The push-type locking mechanism can be, for example, a ballpoint pen mechanism or a heart-shaped curve mechanism. In particular, the push-type locking mechanism can be a component of an adjustment mechanism.

[0097] The invention will now be further described with reference to a few embodiments; however, the invention is not limited to these few embodiments. Further variations and embodiments of the invention arise from combinations of features of one or more of the claims and / or combinations of features of the aforementioned variations of the embodiments and / or the apparatus and applications according to the invention. Attached Figure Description

[0098] In the attached image:

[0099] Figure 1 A three-dimensional exterior view of the stop mechanism in its intermediate position as described herein is shown;

[0100] Figure 2 Shown in Figure 1 In the view of the section indicated by II Figure 1 The longitudinal section of the stop mechanism;

[0101] Figure 3 The cut-off mechanism is shown in a cross-section rotating about the longitudinal axis. Figure 2 Another cross-sectional view of the region indicated by III;

[0102] Figure 4 Shown in a three-dimensional view in the first embodiment Figure 1 The free component of the stop mechanism has a supporting device;

[0103] Figure 5The first embodiment is shown in a cross-sectional view having a locking element abutting thereon. Figure 4 Components;

[0104] Figure 6 Shown in a three-dimensional view having attached thereto according to the first embodiment Figure 5 The locking element Figure 4 Components;

[0105] Figure 7 Shown in a three-dimensional view in the second embodiment Figure 1 The free component of the stop mechanism has a supporting device;

[0106] Figure 8 The cross-sectional view shows a locking element abutting thereon according to the second embodiment. Figure 7 Components;

[0107] Figure 9 Shown in a three-dimensional view in the third embodiment Figure 1 The free component of the stop mechanism has a supporting device;

[0108] Figure 10 The cross-sectional view shows a locking element abutting thereon according to the first embodiment. Figure 9 Components;

[0109] Figure 11 The cross-sectional view shows a locking element abutting thereon according to the third embodiment. Figure 4 Components.

[0110] In the following description of different subjects and embodiments of the invention, elements that are functionally consistent also receive consistent reference numerals in different designs or forms.

[0111] For better overview, not all reference numerals are used in the accompanying drawings, although these elements may indeed be present in the drawings. The same reference numerals, however, indicate functionally and / or structurally identical components and functional units. Detailed Implementation

[0112] Firstly, hereafter, especially in accordance with Figure 1 , Figure 2 and Figure 3 The overall structure and function of one embodiment of the stopping mechanism according to the present invention are described below. Next, in particular, in conjunction with... Figure 5 and Figure 6 Describe the details of the support device and intermediate position of the stop mechanism. Figures 1 to 6 The same embodiment of the shut-off mechanism for flowable media described herein is shown.

[0113] exist Figures 1 to 6 In the embodiments shown and described herein, the shut-off mechanism 1 is configured as a valve 1.

[0114] Valve 1 can be in an open state, a closed state, and at least one intermediate state between the open and closed states. In the open state, valve 1 allows the maximum possible flow rate of the flowable medium. In the closed state, valve 1 prohibits the flow of the flowable medium. In the intermediate state, valve 1 allows a flow rate of the flowable medium that lies between the flow rate in the open state and the flow prohibited in the closed state.

[0115] Figures 1 to 3 Valve 1 is shown in the middle position.

[0116] Switching between states is achieved by means of... Figure 1 and Figure 2 The valve 1 shown is implemented by a manual operating element 2, wherein the manual operating element 2 is used to transfer the first locking element 3, which constitutes the main locking element.

[0117] In the state of valve 1 (not shown in the figure), the main locking element 3 of valve 1 is sealed against the first seat 4, which constitutes the main valve seat of valve 1. The main locking element 3 and the main valve seat 4 thus together constitute the main shut-off mechanism as the main valve. As valve 1 switches from the closed state to the open state, the main locking element 3 is transferred, thereby creating a large predetermined distance between it and the seat 4, in which the flow of the flowable medium is not affected or is substantially unaffected by the main locking element 3.

[0118] A special feature is provided between the manual operating element 2 and the main locking element 3. Figure 2 The visible control element 5 transmits the operating motion applied by the operator on the manual operating element 2 to the main locking element 3.

[0119] At the distal end 6 of the control element 5 relative to the position of the manual operating element 2, the control element 5 is connected to the main locking element 3 in such a way that the main locking element 3 can be moved between an open position and a closed position by means of the control element 5. In particular, the control element 5 is movably abutted against the main locking element 3 at its distal end 6.

[0120] The connection is, for example, detachable and particularly loose, such that movement of the control element 5 toward the main locking element 3 in a movable contact causes movement of the main locking element 3, and movement of the main locking element 3 toward the control element 5 causes movement of the main locking element 3. In the case of movement of the control element 5 opposite to the direction of the main locking element 3 and / or movement of the main locking element 3 opposite to the direction of the control element 5, the main locking element 3 and the control element 5 can be separated from each other.

[0121] The connection can be advantageous for the functionality of valve 1, as further explained in the following description. Based on this connection, the main locking element 3 and the control element 5 can move together or separately under different conditions. The present invention particularly proposes the feature that the generation of noise facilitated by the individual mobility of the main locking element 3 and the control element 5—especially on the side of the main locking element 3—can be reduced.

[0122] Between the manual operating element 2 and the control element 5, a configuration is formed... Figure 2 The compensation device 7, which is visible in the image, transmits the operation of the manual operating element 2 to the control element 5.

[0123] Furthermore, the compensation device 7 has a receiving portion 8 in which the push rod 9 is linearly guided in a slidable manner. This degree of freedom of movement of the push rod 9 results in the control element 5 being able to move relative to the manual operation element 2.

[0124] To hold the control element 5 in a preferred stationary position relative to the manual operating element 2, a reset element 10 is configured in the valve 1. This reset element 10 generates a reset force to hold the control element 5 in the receiving portion 8 in the stationary position, provided that the position of the control element 5 allows it to do so.

[0125] The reset element 10 is disposed outside the compensation device 7 and particularly outside the receiving portion 8. This prevents obstruction of the sliding movement of the push rod 9 within the receiving portion 8. The push rod 9, guided within the receiving portion 8, is mechanically connected directly to the proximal end 11 of the control element 5 relative to the position of the manual operation element 2.

[0126] The receiving part 8 of the compensation device 7 is fixedly connected to the manual operating element 2.

[0127] The push rod 9 is movably guided in the receiving part 8 along the predetermined push rod guide direction via the longitudinal axis 12 of the valve 1.

[0128] Especially in Figure 2 and 3 As can be seen, valve 1 has a pressure chamber 14, which is fluidly connected to the inlet 16 of valve 1 through a filling opening 15. A cleaning pin 17 is provided in the filling opening 15 to prevent the filling opening from becoming blocked. The pressure chamber 14 is fluidly connected to the outlet 19 of the valve through a discharge opening 18.

[0129] The pressure chamber 14 is configured such that the control element 5 is disposed in the pressure chamber 14 at least in the section including the distal end 6. The pressure chamber 14 is sealed relative to the manual operating element 2 and relative to the section including the proximal end 11 of the control element 5 by a seal 22. The seal 22 here abuts against the component 23a of the valve 1, which is the housing component 23a of the valve 1's body.

[0130] Compensation device 7 in Figure 2 The control element 5 is located above the seal 22 and therefore outside the pressure chamber 14. The control element 5 is movably disposed within the housing 23a. Switching valve 1 causes the seal 22 to move in conjunction with the compensation device 7. The seal 22 is a sealing ring surrounding the opening 26, through which the control element 5 is guided sealingly outward from the pressure chamber 14, thereby allowing the pressure chamber 14 to... Figure 2 The view shown is closed upwards.

[0131] The pressure chamber 14 on the side opposite to the opening 26 is closed by the main locking element 3. The main locking element 3 has a body 24 and a diaphragm 25. The diaphragm 25 is formed substantially annularly and is disposed sealingly at its inner edge on the periphery of the body 24. The diaphragm 25 is disposed sealingly at its outer edge on the members 23a, 23b that are configured as housings. The diaphragm 25 carries the body 24 and the filling opening 15 formed on the main locking element 3. Based on the vibrating diaphragm, the main locking element 3 and, in particular, the body 24 are vibratingly, i.e., movably connected to the housing members 23a, 23b along the longitudinal axis 12.

[0132] The diaphragm 25 is clamped between housing members 23a and 23b, forming an inlet 16 and an outlet 19. Alternatively, the housing of valve 1 may be configured differently from having two housing members 23a, 23b, and / or the diaphragm 25 may be sealed to the housing of valve 1 in another manner.

[0133] The pressure chamber is therefore closed except for the filling opening.

[0134] If pressure is present in the flowable medium in inlet 16, then pressure chamber 14 is filled through filling opening 15.

[0135] The main locking element 3 can be easily adjusted by means of a flowable medium and the pressure generated therein in the pressure chamber 14, thereby separating or connecting the outlet 19 to the inlet 16.

[0136] For this purpose, the control element 5 is connected to the second locking element 20 at its distal end 6 relative to the position of the manual operation element 2. The second locking element 20 is configured as a pilot locking element.

[0137] Corresponding to the pilot locking element 20, a discharge opening 18 is formed in the main locking element 3. The discharge opening 18 is surrounded by the second seat 21 of the valve 1, which is configured as a pilot valve seat. In the region of the pilot valve seat 21, the discharge opening has a cross-section larger than that of the filling opening 15, particularly... Figure 3As shown in the diagram, the pilot locking element 20 and the pilot valve seat 21 together constitute a pilot shut-off mechanism that serves as a pilot valve. If the pilot locking element 20 is abutting against the pilot valve seat 21, the discharge opening 18 is therefore closable by means of the pilot locking element 20; or if the pilot valve 20 is not abutting against the pilot valve seat 21, then the discharge opening is open, i.e., it can be released.

[0138] The pilot locking element 20 can therefore control whether pressure is formed in the pressure chamber 14 through the filling opening 15, which is the case when the discharge opening 18 is closed, or whether the pressure that should be formed is reduced by releasing the discharge opening 18 through the pilot locking element 20.

[0139] For the exceptionally simple switching of valve 1, the cross-section that the pilot locking element 20 can cover in the discharge opening 18 is so large that the pilot locking element 20 is moved toward the closed position by the internal pressure in the pressure chamber 14 using the control element 5, in which the discharge opening 18 is closed.

[0140] This is achieved specifically by ensuring that the cross-sectional area of ​​the pilot locking element 20 covering the discharge opening 18 is greater than the cross-sectional area of ​​the control element 5 at its outlet from the pressure chamber 14—that is, in the region passing through the opening 26. Due to the larger cross-sectional area on the discharge opening 18, the flowable medium in the pressure chamber 14 forces the control element 5 towards the discharge opening 18 with greater force.

[0141] Therefore, the reset element 10, which also drives the control element 5 in the direction of the discharge opening 18, can be designed to have a relatively small spring force. This allows the manual operation element reset spring 27—which drives the control element 5 in the opposite direction to the discharge opening 18 via the actuating element 2 and the push rod 9—to also be designed to have a relatively small spring force. In this way, smooth switching performance can be achieved.

[0142] Then, the valve's state and the switching between states were summarized again.

[0143] When pressure is created in pressure chamber 14, the main locking element 3 is pressed against the main valve seat 4, thus separating inlet 16 from outlet 19. Outlet 19 is then sealed and isolated from inlet 16. Valve 1 is then in the closed state, which is not shown in the attached figures.

[0144] With the pressure chamber 14 unloaded, i.e., with the discharge opening 18 open, the pressure in the inlet 16 causes the main locking element 3 to be forced away from the inlet 16 and the main valve seat 4, releasing its fluid connection to the outlet 19. The main locking element 3 can then be positioned in the aforementioned open position, in which the flow of the fluidizable medium from the inlet 16 to the outlet 19 is not or substantially unaffected by the main locking element 3. The open position of the main locking element 3 is not shown in the accompanying drawings.

[0145] As is evident from the accompanying drawings, the discharge opening 18 and the outlet 19 are successively arranged in the extension of the control element 5 along the longitudinal axis 12, that is, along the adjustment direction of the control element 5.

[0146] The reset element 10 is configured as a helical spring and applies pressure to the control element 5. Here, the reset element 10 is supported on the housing 23a.

[0147] The manual operating element 2 is loaded by the manual operating element return spring 27, which is also supported on the housing 23a. In order for the manual operating element 2 to switch the control element 5 to the open position, opening the discharge opening 18, the manual operating element return spring 27 is configured to generate a greater force than the return element 10.

[0148] Not only the reset element 10, but also the manual operation element reset spring 27 is configured as a helical spring, which surrounds and houses the engagement control element 5.

[0149] The compensation device 7 is positioned above the reset spring 27 of the manual operation element along the longitudinal axis 12.

[0150] The manual operating element 2 is configured as a top cover and its internal space 28 houses the compensation device 7, such as in Figure 2 As can be seen in the text.

[0151] Here, the manual operating element 2 is held in the first sleeve 29 and the second sleeve 30. The second sleeve 30 is partially inserted into the first sleeve 29 and is rotatable about the longitudinal axis 12 within the first sleeve 29. The first sleeve 29 and the second sleeve 30 are each fixed along the longitudinal axis 12 and each constitutes a stop for the manual operating element 2.

[0152] Valve 1 has a bistable adjusting mechanism 31, which forms a push-lock mechanism, such as a ballpoint pen mechanism or a heart-shaped curve mechanism. Using the adjusting mechanism 31, the manual operating element 2 on the second sleeve 30 can be adjusted between the upper position—where the main locking element 3 can occupy the open position—and the lower position—where the main locking element 3 can occupy the closed position—by pressing along the longitudinal axis 12.

[0153] Valve 1 also has an adjustment device, which in Figure 2 It is not visible in the middle. The maximum interval of the adjustment device is adjustable, that is, when the control element 5 is moved out of the receiving part 8 to the maximum extent in the direction of the discharge opening 18, the interval between the pilot locking element 20 and the stop for the manual operation element 2 on the first sleeve 29 is adjustable.

[0154] The adjusting device is configured as a combination of a toothed profile and a plurality of bosses that slide along the toothed profile. The toothed profile is formed here in the first sleeve 29 as a stop for the manually operated element 2. In the embodiment described here, the toothed profile is configured as a serrated profile on the upper end of the radially inwardly pointing inner side of the first sleeve 29. The bosses are configured as pins on the radially outwardly pointing outer side of the manually operated element 2 that can move along the toothed profile. The manually operated element 2 is configured to be movable along the longitudinal axis 12 by means of the adjusting mechanism 31 and additionally rotatable or oscillating about the longitudinal axis 12 by means of the adjusting device.

[0155] In order to switch from the open state of valve 1 (not shown in the attached drawings) to the closed state of valve 1 (also not shown), wherein the main locking element 3 is sealed against the main valve seat 4, the manual operating element 2 can be pressed and adjusted along the longitudinal axis 12 based on the adjusting mechanism 31.

[0156] By pressing the manual operating element 2 while valve 1 is in the open state, the pilot locking element 20 is pressed against the pilot valve seat 21 and the main locking element 3 is pressed against the main valve seat 4 by means of the manual operating element 2. This creates pressure in the pressure chamber 14, which presses the pilot locking element 20 against the pilot valve seat 21 and the main locking element 3 against the main valve seat 4 even with the manual operating element 2 unloaded, thus keeping valve 1 in the closed state.

[0157] In order to return valve 1 from the closed state to the open state, the manual operating element 2 can be pressed again along the longitudinal axis 12.

[0158] Here, the pressure along the longitudinal axis 12 onto the manual operating element 2 causes the receiving part 8 to move downward relative to the push rod 9.

[0159] The mobility of the push rod 9 within the receiving portion 8 allows the manual operating element 2 to move beyond the end predetermined by the pilot locking element 20 for the adjustment stroke of the control element 5. This is advantageous in the case of a push-type locking mechanism, because it is then possible to surpass the lower (with respect to the push movement) dead point or stable point in order to return the manual operating element 2 from the lower position to the upper position.

[0160] If the manual operating element 2 is moved to the upper position, it actuates the push rod 9 and the control element 5. Because the push rod 9, connected to the control element 5, has a larger cross-section than the through-opening for the control element 5 in the lower abutment surface of the receiving portion 8, the control element 5 is guided into the receiving portion 8 through this through-opening. The push rod 9 can therefore rest against the lower abutment surface of the receiving portion 8 and be driven upwards when the manual operating element 2 is moved to the upper position.

[0161] In this situation, the pilot locking element 20 releases the discharge opening 18. However, because pressure still forms in the pressure chamber 14, the main locking element 3 remains in its closed position initially.

[0162] The discharge opening 18 is designed to be larger than the filling opening 15 as described above, so that the pressure in the pressure chamber 14 is reduced through the discharge opening 18 and the outlet 19.

[0163] This causes the pressure in inlet 16 to lift the main locking element 3 with diaphragm 25, thereby fluidly connecting inlet 16 to outlet 19.

[0164] In order to switch valve 1 from the open state to the open state Figure 2 Neutralization Figure 3 The position of the manual operating element 2 can be changed using the adjustment device, as shown in the diagram.

[0165] exist Figure 2 and Figure 3 In the state shown, there are small gaps between the main locking element 3 and the main valve seat 4, and between the pilot locking element 20 and the pilot valve seat 21. The main locking element 3 is positioned in an intermediate position adjusted by the regulating device, in which the main locking element 3 is disengaged from the outlet 19 in order to release the outlet in a throttling manner.

[0166] If the manual operating element 2 is rotated about the longitudinal axis 12 via a pin configured thereon, the pin moves downward or upward in the first sleeve 29 on its tooth profile, thereby actuating the manual operating element 2. Therefore, if the valve 1 is not in the closed state, the maximum distance between the main valve seat 4 and the distal end 6 of the control element 5, i.e., the distance between the main valve seat 4 on one side and the distal end 6 or the pilot locking element 20 fastened thereto on the other side, is adjustable. The cross-sectional area of ​​the opening on the main valve seat 4 is thus variable, through which the flowing medium can flow from the inlet 16 into the outlet 19.

[0167] If the pilot locking element 20 is guided closer to the discharge opening 18 than the open state of valve 1, this can cause the discharge opening 18 to close briefly and thus re-establish pressure in the pressure chamber 14. Because the manual operating element 2 is in its superior position, the pressure formation does not push the main locking element 3 all the way to the main valve seat 4, but only pushes it downwards by such a distance until the discharge opening 18 opens again. The pilot locking element 20 can therefore no longer follow the main locking element 3 further until the main locking element reaches the main valve seat 4 due to the position of the manual operating element 2.

[0168] In this open state of the pilot valve, the pressure chamber 14 is unloaded, causing the main locking element 3 to seek an upward position again. Thus, a suspended equilibrium state is formed, in which the main locking element 3 is positioned in the intermediate position and in which the inlet 16 is partially open, thereby adjusting the fluid flow between the inlet 16 and the outlet 19 relative to the open position of the main locking element 3. Therefore, a maximum reduced gap is achieved between the main valve seat 4 and the distal end 6 of the control element 5 relative to the open state of valve 1.

[0169] As a result, valve 1 is switched from the open state to the closed state in the manner described herein. Figure 2 In the state shown, the main locking element 3 is positioned in the middle position.

[0170] In order to Figure 2 In the state shown, noise generation can be limited or even avoided by using the main locking element 3 in the intermediate position. The valve 1 has a first support device 32 that is contacted by the main locking element 3 in the intermediate position and a second support device 36 that is contacted by the pilot locking element 20 in the intermediate position.

[0171] Valve 1 in Figures 1 to 6 The first support device 32 of the embodiment shown in the figure is particularly separate in the same embodiment. Figure 4 The housing component 23b with the main valve seat 4 shown in the figure is clearly visible.

[0172] Valve 1 in Figures 1 to 6 The second support device 36 of the embodiment shown in the figure is particularly in the same embodiment. Figure 6 The locking element 3 with pilot valve seat 4 is clearly visible in the diagram.

[0173] To better understand Figures 1 to 6 The functional modes of the support devices 32 and 36 in the embodiments shown are as follows: Figure 5 and Figure 6 The upper section of housing 23b and the main locking element 3 positioned in the middle are shown. The middle position of the main locking element 3 is determined by the first support device 32.

[0174] In valve 1 Figures 1 to 6 In the embodiment shown, the main locking element 3 has a body 24 and a diaphragm 25 as described, and the main locking element 3 contacts the first support device 32 with the diaphragm 25 in the middle position, in the manner that the diaphragm 25 is attached to the first support device 32.

[0175] As described, the diaphragm 25 is substantially annular in shape and is disposed sealingly at its inner edge on the periphery of the body 24. For this purpose, the diaphragm 25 is particularly sealed into the gap formed in the body 24. The diaphragm 25 is disposed sealingly at its outer edge on the housing members 23a, 23b. The diaphragm 25 is loosely abutted against the radially outer section 35 of the body 24, which is formed between the inner and outer edges of the diaphragm 25 and is parallel to the radially outer section 34. Here, the radially outer section 34 and the radially inner section 35 are oriented particularly transversely to the longitudinal direction 12 or the direction of movement of the main locking element 3.

[0176] The diaphragm 25 can be formed, in particular, of an elastic material having a low modulus of elasticity, such as an elastomer. The body 24 can be formed, in particular, of a material having a higher modulus of elasticity than the material forming the diaphragm 25, such as a metallic material. The body 24 shown is therefore more resistant to elastic deformation than the diaphragm 25 shown.

[0177] The first support device 32 is in Figures 1 to 6 The embodiment shown is configured as a support comprising four generally stepped structures 32a, 32b, 32c, and 32d. The stepped structures 32a, 32b, 32c, and 32d are particularly equidistantly arranged on a circular track, which is positioned outside the main valve seat 4.

[0178] Especially in Figure 4 and Figure 5 As can be seen, the essentially stepped structures 32a, 32b, 32c, and 32d are integrally formed with the housing 23b having the main valve seat 4 on the inwardly pointing inner wall of the housing 23b. Alternatively, the first support device 32 and, in particular, the stepped structures are fastened to the housing 23b (not shown in the drawings).

[0179] The stepped structures 32a, 32b, 32c, and 32d have surfaces oriented transversely to the direction of movement of the locking element 3, i.e., to the longitudinal axis 12. On this surface of each stepped structure, bolt-like protrusions 33a, 33b, 33c, and 33d are formed, which protrude from the housing member 23b and, in particular, from the stepped structures 32a, 32b, 32c, and 32d toward the main locking element 3 and, in particular, toward the middle section 34 of the diaphragm 25. Each of the protrusions 33a, 33b, 33c, and 33d also has a surface oriented transversely to the direction of movement of the locking element 3. These surfaces of the bolt-like protrusions 33a, 33b, 33c, and 33d are positioned along the longitudinal axis 12 closer to the distal end 6 of the control element 5 than to the main valve seat 4. The surfaces of the bolt-shaped protrusions 33a, 33b, 33c, and 33d that are in contact with the main locking element 3 are contact surfaces and the diaphragm 25 is attached to these contact surfaces.

[0180] The housing 23b and the first support device 32 can be formed, in particular, of a material having a higher modulus of elasticity than the material forming the diaphragm 25, for example, a metallic material. The diaphragm 25—which is the component of the main locking element 3 that is accessible to the first support device 32—and the first support device 32 are therefore configured to have different elasticities. The higher elasticity of the diaphragm 25 allows it to deform and be pressed against the main valve seat 4 to switch the main locking element 3 to the closed position. The first support device 32 is then pressed into the diaphragm 25.

[0181] If the main locking element 3 is placed on the first support device 32, i.e. the protrusions 33a, 33b, 33c, and 33d, in the intermediate position with the diaphragm 25 attached, then the first support device 32 and the main locking element 3 form four mutually spaced contact points, thereby reliably supporting the main locking element 3 and reducing vibration compared to the embodiment of the valve (not shown) in which the first support device is not provided.

[0182] Here, a free space is formed between each of two adjacent stepped structures 32a, 32b, 32c, 32d, each having protrusions 33a, 33b, 33c, 33d thereon. This free space, located in the middle of the main locking element 3, particularly in conjunction with the main valve seat 4, constitutes a flow cross-section for the flowable medium. The sum of these flow cross-sections is greater than the flow cross-section formed parallel to the longitudinal axis 12 between the main locking element 3 and the main valve seat 4. Thus, the flow rate through the outlet 19 is limited by the flow cross-section between the main locking element 3 and the main valve seat 4.

[0183] Based on the aforementioned configuration, the main locking element 3 is supported on the first support device 32 in an intermediate position, such that the diaphragm 25 is supported and, in particular, clamped between the first support device 32 and the main body 24. Due to the elasticity of the diaphragm 25, the main locking element 3 also remains movable along the longitudinal axis 12 in contact with the first support device 32, and is restricted in its movement and, in particular, capable of vibration.

[0184] In order to additionally or alternatively limit or even avoid noise generation caused by control element 5 or pilot locking element 20, valve 1 has a second support device 36, which is accessible by pilot locking element 20.

[0185] Especially in Figure 5 and Figure 6 As can be seen, the second support device 36 is in Figures 1 to 6 The embodiment shown is constructed in the form of a support, including, for example, four generally stepped structures 36a, 36b, 36c, and 36d. The stepped structures 36a, 36b, 36c, and 36d are integrally formed with the main body 24 of the main locking element 3 and are arranged, in particular, equidistantly on a circular track. This circular track has a radius greater than that of the pilot valve seat 21 and less than that of the main valve seat 4. In other words, the circular track of the stepped structures 36a, 36b, 36c, and 36d, with the second support device 36, is positioned outside the pilot valve seat 21 and inside the main valve seat 4.

[0186] In the illustrated embodiment, the stepped structures 36a, 36b, 36c, and 36d are each composed of a flat, quadrangular segment in cross-section. In the top view, the stepped structures 36a, 36b, 36c, and 36d are circularly formed. Each of the stepped structures 36a, 36b, 36c, and 36d protrudes two semi-circular protrusions 37a, 37b, 37c, 37d, 37e, 37f, 37g, and 37h in cross-sectional view toward the pilot locking element 20. The protrusions 37a, 37b, 37c, 37d, 37e, 37f, 37g, and 37h on the second support device 36, like the protrusions on the first support device 32, have surfaces oriented transversely to the direction of movement of the locking element 3, i.e., oriented along the longitudinal axis 12. These surfaces are positioned closer to the distal end 6 of the control element 5 than the pilot valve seat 21 along the longitudinal axis 12. The surfaces of the protrusions 37a, 37b, 37c, 37d, 37e, 37f, 37g, and 37h that are in contact with the pilot locking element 20 are contact surfaces, and the pilot locking element 20 is attached to these contact surfaces.

[0187] Here, free spaces are formed between each pair of adjacent stepped structures 36a, 36b, 36c, 36d and between each pair of adjacent protrusions 37a, 37b, 37c, 37d, 37e, 37f, 37g, 37h, which, in particular in conjunction with the body 24, form a flow cross-section for the flowable medium in the middle position of the pilot locking element 20. The sum of these flow cross-sections is greater than the flow cross-section formed parallel to the longitudinal axis 12 between the pilot locking element 20 and the pilot valve seat 21. Thus, the flow rate through the discharge opening 18 is limited by the flow cross-section between the pilot valve seat 21 and the body 24.

[0188] The main body 24 and the second support device 36 can be formed, in particular, of a material having a higher modulus of elasticity than the material forming the pilot locking element 20, for example, a metallic material. The pilot locking element 20 and the second support device 36 are thus configured to have different elasticities. The higher elasticity of the pilot locking element 20 allows it to deform and be pressed against the pilot valve seat 21 to switch it to the closed position. The second support device 36 is then pressed into the pilot locking element 20, and the pilot locking element 20 rests against the pilot valve seat 21. In the open position of the main locking element 3, the second support device 36 can—depending on whether the diaphragm 25 allows the main locking element 3 to move until the pilot locking element 3—rest against the pilot locking element 20. In the intermediate position of the main locking element 3, the second support device 36 is at least temporarily in contact with the pilot locking element 20.

[0189] If the pilot locking element 20 is placed on a second support device 36 having, for example, four stepped structures 36a, 36b, 36c, 36d and eight protrusions 37a, 37b, 37c, 37d, 37e, 37f, 37g, 37h, then the second support device 36 and the pilot locking element 20 constitute, for example, eight mutually spaced contact points, thereby reliably and vibration-reducingly supporting the main locking element 3 compared to the valve (not shown) embodiment in which no second support device is provided.

[0190] Further embodiments of the shut-off mechanism constituting a valve are described below with reference to the accompanying drawings. Based on these further embodiments and in... Figures 1 to 6 The strong consistency with the embodiments shown is merely a description of the embodiments in the document. Figures 1 to 6 The differences between the embodiments shown in the figure.

[0191] This distinction specifically relates to the configuration of the main locking element 3 and the configuration of the first support device 32.

[0192] Figure 7 and Figure 8The components of one embodiment of the valve are shown, wherein the first support device 32—as in Figures 1 to 5 In the embodiment shown, the structure is configured as a support and includes four stepped structures 32a, 32b, 32c, and 32d. The stepped structures 32a, 32b, 32c, and 32d have surfaces oriented transversely to the direction of movement of the locking element 3, i.e., oriented along the longitudinal axis 12. These surfaces are positioned at a greater distance from the distal end 6 of the control element 5 than from the main valve seat 4 along the longitudinal axis 12. Alternatively, these surfaces may have the same distance as the main valve seat 4.

[0193] The surfaces of the stepped structures 32a, 32b, 32c, and 32d that are in contact with the main locking element 3 and are oriented transversely to the direction of movement of the locking element 3 are contact surfaces, and the diaphragm 25 is attached to these contact surfaces.

[0194] Unlike in Figures 1 to 5 In the embodiments described herein, the stepped structures 32a, 32b, 32c, and 32d do not have protrusions. Of course, the diaphragm 25 has, in particular, annular protrusions 33, which protrude from the main locking element 3 toward the second support device 32. The protrusions 33 may also be designed differently than annular, for example, as studs and / or stacks. Based on the protrusions 33 formed on the diaphragm 25, if the main locking element 3 is spaced from the main valve seat 4, then the main locking element 3 and the first support device 32 can be positioned such that the main locking element 3... Figure 8 The contact is in the middle position shown in the figure.

[0195] Figure 9 and Figure 10 The components of another embodiment of the valve are shown. In this embodiment, the first support device 32 is configured as four stepped structures 32a, 32b, 32c, and 32d. The stepped structures 32a, 32b, 32c, and 32d, along with the main locking element 3, are configured and arranged such that the main locking element 3... Figure 10 The middle position shown is attached to the radially inward-pointing surfaces of the stepped structures 32a, 32b, 32c, and 32d.

[0196] The first support device 32 therefore has a contact surface oriented parallel to the direction of movement of the main locking element 3. The surfaces on the stepped structures 32a, 32b, 32c, and 32d have at least one segment along the longitudinal axis 12, which has a smaller distance from the distal end 6 of the control element 5 compared to the main valve seat 4. In this embodiment, the protrusion on the first support device 32 or the main locking element 3 can therefore be omitted.

[0197] Figure 11 The components of another embodiment of the valve are shown. The housing 23b and, in particular, the first support device 32, are connected to the valve in... Figures 1 to 5 The corresponding components of the embodiments shown are basically the same.

[0198] Main locking element 3 and in Figures 1 to 5 The main locking elements shown are configured differently. In particular, in Figure 11 The main locking element 3 shown is constructed as a single piece. The main locking element 3 shown here has a thin-walled section 38, thereby the main locking element 3 is partially configured as a vibrating diaphragm with respect to this section 38. The thin-walled section 38 essentially has... Figures 1 to 5 The geometry of the diaphragm is shown. The thin-walled segment 38 adjacent to the thick-walled segment 39 essentially has... Figures 1 to 5 The geometry of the main body is shown and it fulfills its function.

[0199] exist Figure 11 The main locking element 3 shown can be formed, for example, from an elastic material having a small elastic modulus, such as an elastomer.

[0200] The housing 23b and the first support device 32 can be formed, in particular, of a material having a higher modulus of elasticity than the material forming the main locking element 3, for example, a metallic material. The main locking element 3 and the first support device 32 are thus configured to have different elasticities. The higher elasticity of the main locking element 3 allows it to be deformable and pressed against the main valve seat 4 to switch the main locking element 3 to the closed position. The first support device 32 is then pressed into the main locking element 3.

[0201] List of reference numerals

[0202] 1. Shut-off mechanism / valve

[0203] 2 Manual operating elements

[0204] 3 locking elements / main locking elements

[0205] 4 seats / main valve seat

[0206] 5 control elements

[0207] 6 remote

[0208] 7 Compensation Device

[0209] 8. Accommodation

[0210] 9 putters

[0211] 10 reset elements

[0212] 11 Proximal

[0213] 12 longitudinal axes

[0214] 14 pressure chambers

[0215] 15 Filling opening

[0216] 16 entrances

[0217] 17 Cleaning pin / end of support spring

[0218] 18 Discharge openings

[0219] 19 Exports

[0220] 20. Second locking element, pilot locking element

[0221] 21 Second valve seat, pilot valve seat

[0222] 22 Seals

[0223] 23a housing component

[0224] 23b housing component

[0225] 24 main bodies

[0226] 25 membranes

[0227] 26 through the opening

[0228] 27 Manual Operating Components - Return Spring

[0229] 28. Internal space of manually operated components

[0230] 29 First Sleeve

[0231] 30 Second Sleeve

[0232] 31 Adjustment of mechanical devices

[0233] 32 First support device

[0234] Stepped structures 32a, 32b, 32c, and 32d

[0235] Protrusions 33, 33a, 33b, 33c, and 33d

[0236] 34. Radial middle section of the diaphragm

[0237] 35 Radial outer segment of the main body

[0238] 36 Second support device

[0239] Stepped structures 36a, 36b, 36c, and 36d

[0240] Protrusions 37a, 37b, 37c, 37d, 37e, 37f, 37g, and 37h

[0241] 38 thin-walled sections

[0242] 39 Thick-walled section

Claims

1. A shut-off mechanism (1) for a flowable medium, particularly a valve, said shut-off mechanism comprising at least one locking element (3, 20) capable of reaching an open position and a closed position and a seat (4, 21) for said at least one locking element (3, 20), particularly a valve seat, characterized in that, The intermediate position of the locking element (3, 20) is determined by the support device (32, 36), and in particular, the locking element (3, 20) contacts the support device (32, 36) and / or is spaced apart from the seat (4, 21) in the intermediate position.

2. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The stop mechanism (1) includes an adjustment mechanism (31) and / or an adjustment device, by means of which the locking element (3, 20) or a component of the locking element (3, 20) can achieve an adjustable interval with the seat (4, 21).

3. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, At least one of the locking elements (3, 20) and the supporting device (32, 36) are configured to have different elasticity and / or rigidity.

4. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The support device (32, 36) and the locking element (3, 20) form at least two mutually spaced contact points.

5. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The locking element (3, 20) is at least partially configured as a diaphragm (25) or has a diaphragm (25), and in particular the diaphragm (25) contacts the support device (32, 36) in the intermediate position.

6. The stopping mechanism (1) according to claim 5, characterized in that, The diaphragm (25) of the locking element (3, 20) is supportedly disposed in the intermediate position between the support device (32, 36) and the body (24) of the locking element (3, 20).

7. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The support device (32, 36) is integrally formed with the component (23b, 3) having the seat (4, 21), or the support device is fastened to the component (23b, 3) having the seat (4, 21).

8. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The support device (32, 36) is configured as a support, the support having at least one contact surface oriented transversely to or parallel to the direction of movement of the locking element (3, 20).

9. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, In the middle position of the locking elements (3, 20), the first flow cross section is determined by the support devices (32, 36) together and the second flow cross section is determined by the locking elements (3, 20) and the seat (4, 21), wherein the first flow cross section is larger than the second flow cross section.

10. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The support device (32, 36) has one or more protrusions (33a, 33b, 33c, 33d, 37a, 37b, 37c, 37d, 37e, 37f, 37g, 37h), in particular the one or more protrusions (33a, 33b, 33c, 33d, 37a, 37b, 37c, 37d, 37e, 37f, 37g, 37h) protruding from the member (23b, 3) having a seat (4, 21) toward the locking element (3, 20).

11. The stopping mechanism (1) according to any one of claims 1 to 9, characterized in that, The locking element (3, 20) and in particular one of the locking elements (3, 20) or the diaphragm (25) have a protrusion (33) or more or more of the protrusions, in particular the protrusion (33) or the protrusions protrude from the locking element (3, 20) toward the support device (32, 36).

12. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The locking elements (3, 20) and the control element (5) can be detachably connected, and in particular, the position of the locking elements (3, 20) can be predetermined by the control element.

13. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The cut-off mechanism (1) has a compensation device (7).

14. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The shut-off mechanism (1) has a main shut-off mechanism and a pilot shut-off mechanism, wherein the main shut-off mechanism is configured as a shut-off mechanism according to any one of the preceding claims and / or wherein the pilot shut-off mechanism is configured as a shut-off mechanism according to any one of the preceding claims, in particular the main shut-off mechanism is configured as a main valve and / or the pilot shut-off mechanism is configured as a pilot valve.

15. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The shut-off mechanism (1) has a first locking element (3), a first seat (4) for the first locking element (3), a second locking element (20), a second seat (21) for the second locking element (20), and at least one support device (32, 36). In particular, the first locking element (3) and the first seat (4) constitute a main shut-off mechanism for a main valve or preferably constitute a main shut-off mechanism for a main valve, and / or the second locking element (20) and the second seat (21) constitute a pilot shut-off mechanism for a pilot valve or preferably constitute a pilot shut-off mechanism for a pilot valve.

16. The stopping mechanism (1) according to any one of the preceding claims, characterized in that, The locking elements (3, 20) are designed to move along the longitudinal axis (12) and / or the shut-off mechanism (1) is configured as a throttle valve that is particularly capable of linear adjustment.

17. The stopping mechanism (1) according to any one of claims 2 to 16, characterized in that, The adjusting mechanism (31) and / or adjusting device have a push-type locking mechanism.

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