Position indicating device for a load bearing element
The position indication device, designed entirely by mechanical means, solves the problem of poor reliability of traditional indicators in nuclear technology and explosion-threatened facilities, and achieves reliable indication of the movement of load-bearing components, making it suitable for application scenarios that avoid electronic components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LISEGA SE
- Filing Date
- 2021-02-18
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional location indicators are difficult to implement or costly in nuclear technology and explosion threat facilities, and electronic monitoring equipment is unreliable in these environments.
A purely mechanical position indication device was designed, including a mechanical motion transmission device and an indication device, which can indicate the current position and extreme position of the movable section of the carrying element. It adopts a hollow column and a carrying component design, and achieves extreme value indication through transverse bolts and ring elements.
Reliable indication of the movement of load-bearing components is achieved without the need for electronic components, making it suitable for environments with high explosion risk and improving the reliability and safety of the facility.
Smart Images
Figure CN115769042B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a position indicating device for indicating the movement of a movable section of a load-bearing element relative to a fixed section, wherein the load-bearing element is in particular a spring or constant-force hanger, an impact brake, or a vibration damper. The spring or constant-force hanger is used to bear the weight load of pipes, containers, and other facility parts; the vibration damper is to reduce the vibrations that occur; and the impact brake is used to protect the facility from earthquakes, water hammer, pipe bursts, or pressure shocks in the piping system, without impeding the slow movement of the component to be protected, especially thermally induced movement. Background Technology
[0002] These conventional load-bearing elements are sometimes required by standard specifications to have travel or position indicators that indicate the current position of the movable section of the load-bearing element. Depending on the application or installation location of the load-bearing element, the readability of the travel indicator may be limited on the user side, for example, in nuclear technology, chemical, or other facilities under explosion threat. Furthermore, when applying load-bearing elements such as impact brakes, there may be a requirement not only to indicate the current movement of the structural element being supported (e.g., pipes), but also, in principle, to provide the movement pattern or behavior of the supported structural element. In the various applications described above, such as in nuclear power facilities due to radiation that damages semiconductors and / or in other facilities due to the need for explosion protection, conventional electronic position indicators are technically difficult to implement, or the technical costs required for electronic monitoring or position indication are cost-intensive.
[0003] JP S57 14803 relates to a position indicating device for a carrying device, used to indicate the movement of a carrying element relative to a fixed section of the carrying element. The position indicating device has a pointer that can be secured to the fixed section of the carrying element, the pointer having a swinging pointer, wherein a drive member arranged on a movable section of the carrying element engages with the pointer and carries the pointer to swing out from its current position as the two sections of the carrying element move relative to each other. Pesola's product datasheet "Federwaage Macro Line 80005" describes a spring scale in which a hollow cylindrical member with a handle, fixed during use of the scale, receives a movable cylindrical member therein, the movable cylindrical member being secured to a fixed part of the scale by means of a mechanical spring. A fixed, hollow cylindrical member has a longitudinal groove through which a radially outwardly extending pointer bolt is arranged on the movable member. The pointer bolt extends radially through the groove of the cylinder and carries a drag pointer arranged externally relative to the cylinder when the fixed member and the movable member of the scale are displaced relative to each other, so as to permanently indicate the weight applied to the movable member of the spring scale even after the weight has been removed. Summary of the Invention
[0004] The present invention is based on the objective of improving the functionality of conventional position indication devices for indicating the position of movable sections of a carrier element.
[0005] The present invention solves this task with a position indicating device. The position indicating device according to the invention includes a mechanical motion transmission device and an indicating device, the mechanical motion transmission device being fastened to the support element for transmitting motion of a movable section of the support element, the indicating device indicating the motion of the movable section of the support element, wherein the motion transmission device is coupled to the indicating device (20) on the output side, and the indicating device has a hollow column and a carrier member movably supported in the hollow column and motionally coupled to the motion transmission device, wherein the hollow column includes a longitudinal groove, and a radially outwardly extending transverse bolt moving together with the carrier member extends in the longitudinal groove, the transverse bolt being configured to move at least one extreme indicator device arranged radially outward relative to the hollow column, or in particular, to move a section of the same extreme indicator device axially.
[0006] This invention is based on the fundamental idea of constructing a position indicating device for a load-bearing element, such as a spring or constant force hanger, impact brake, or shock absorber, using a purely mechanical method, particularly for a given critical application area. The position indicating device according to the invention, in addition to indicating the current position (i.e., instantaneous position) of the movable segment of the load-bearing element, can also be configured to indicate at least one extreme position, which is occupied or just occupied by the movable segment of the load-bearing element during a past time period. Such an extreme indicator can, for example, represent an amplitude indicator in the case of a load-bearing element whose movable segment moves due to external excitation, wherein the instantaneous deviation from a rest position is referred to as elongation in this case. Practically, the position indicating device according to the invention can be configured such that if the current position extends beyond a past extreme value, the indicated value of the extreme indicator changes. It is possible to configure a radially outwardly oriented transverse bolt, on the one hand, to have a carrying function with respect to the extreme indicator and on the other hand, to indicate the instantaneous position of the movable segment of the load-bearing element. However, it is also possible to configure a carrying member moving within a hollow cylinder to indicate the instantaneous position of the movable segment of the load-bearing element. Depending on the implementation, the transverse bolt can be constructed, for example, in a rod-like form, particularly in a cylindrical form or also in an angular form in a cross-section perpendicular to its longitudinal extension.
[0007] Since the position indicating device according to the invention is preferably constructed of purely mechanical structural elements, especially without electronic structural elements, the position indicating device according to the invention is particularly suitable for the aforementioned key application areas, wherein the motion transmission device can be constructed in relation to the application in terms of its structural length, for example, to provide a position or travel indicator outside the described key application areas, especially in the case of avoiding electronic components to avoid the risk of explosion and / or improving reliability, especially in nuclear technology facilities.
[0008] Further features and extensions of the position indicating device according to the invention are described in the following general description, drawings, and description of the drawings.
[0009] Practically, it is possible to install lateral bolts, in particular, rigidly fasten them to the carrier. For example, the carrier can be arranged laterally to the carrier's direction of movement, especially extending through the carrier.
[0010] To provide the most symmetrical force introduction from the carrier to the extreme indicator arranged radially outward relative to the hollow cylinder, it is practically possible to provide that the hollow cylinder has another longitudinal slot. This other longitudinal slot can be arranged radially opposite to the first longitudinal slot, wherein the carrier can have a radial extension that extends radially outward through both longitudinal slots, and wherein the two radial end sections of the carrier can be configured to abut against the aforementioned extreme indicator and move the extreme indicator, particularly in the axial direction (i.e., the direction of movement of the carrier), especially to avoid tilting in the mechanical structure of the position indicating device according to the invention.
[0011] To couple the motion transmission device to the indicating device, the former can be configured to be fastened to a movable section of the carrier element. In another embodiment, the motion transmission device can also be configured to be fastened to a fixed section of the carrier element, particularly in embodiments where the indicating device is fastened to a movable section of the carrier element and moves together with that movable section.
[0012] In a simple configuration, the motion transmission device can be configured to convert translational motion acquired on the input side into translational motion on the output side. Here, the motion transmission device can be fastened to a movable or immovable section of the supporting element on the input side and to an indicating device on the output side. Depending on the embodiment, the motion transmission device can be configured to convert translational motion acquired on the input side into translational motion on the output side in a one-to-one ratio. However, it is also within the scope of the invention to construct the motion transmission device to provide a different transmission ratio, particularly another conversion or transformation. For example, in the case of a one-to-two conversion, a translational motion on the input side can be converted into double the (path) value of the translational motion. It is also possible to configure the motion transmission device such that translational motion detected on the input side is converted into rotational motion on the output side of the motion transmission device.
[0013] Particularly in applications where the movable section of the load-bearing element is indicated by the position indicating device according to the invention and the movement is reciprocating, it is practical to configure the motion transmission device to include mechanical elements constructed for transmitting tension and pressure, particularly Bowden wire for transmitting tension and pressure. Preferably, such Bowden wire can include a core, particularly a steel wire core, for transmitting tension and pressure.
[0014] An extreme value indicator, radially externally arranged relative to a hollow cylinder and axially movable relative to the cylinder, can have a first ring element surrounding the hollow cylinder such that the hollow cylinder extends through the ring element, wherein the ring element is arranged to be axially movable relative to the hollow cylinder. Here, the ring element and a drive member can be arranged such that the drive member moves the axially movable ring element on the hollow cylinder according to its axial position within the hollow cylinder. To achieve corresponding extreme value indication in two directions during the reciprocating motion of the movable section of the supporting element, the extreme value indicator can practically be configured to have at least one second ring element, which, in particular, surrounds the hollow cylinder and is arranged axially movable relative to the hollow cylinder independently of the first ring element.
[0015] To practically accommodate the transverse bolt axially in at least a section of at least one ring element, the at least one ring element can be configured to have an axial slot on its end facing the drive member for receiving the transverse bolt at least section in the axial direction, particularly for defining the zero position of the extreme value indicator. Similarly, the first and second ring elements can be configured to have axial slots on their end faces facing the drive member for receiving the transverse bolt at least section in the axial direction, particularly enabling the adjustment of an operating position in which the ring elements, in a predetermined operating position, can be arranged on their respective end faces, particularly moving toward each other to contact, so as to adjust the zero or starting position of the first and / or second ring elements to a portion of the extreme value indicator of the position indicating device according to the invention.
[0016] To enable the first and / or second ring elements to be axially driven or continue to move relative to the hollow cylinder, the bottom of the axial slot of the first and / or second ring elements can be provided with an axial stop surface for the transverse bolt. This stop surface can be configured as a contact surface for the transverse bolt of the driven element, so as to configure the respective ring elements into positions associated with the driven element to indicate new extreme values.
[0017] To support the respective ring elements on the hollow cylinder, the first and / or second ring elements can have sliding bearing elements on their respective radially inner sides, particularly to keep the friction between the ring elements and the outer surface of the hollow cylinder low, thereby achieving easy mobility of the respective ring elements on the hollow cylinder. Practically, the ring elements can be configured to provide a sleeve-shaped abutment surface that abuts against a sleeve-shaped abutment surface of the hollow cylinder. However, it is also within the scope of the invention to provide other corresponding abutment surfaces of the ring elements and the hollow cylinder that are coordinated with each other, particularly corresponding angled abutment surfaces. To prevent the respective ring elements from tilting during axial movement relative to the hollow cylinder, it is practically possible to configure the first and / or second ring elements to have at least two axially spaced sliding bearing elements on their respective radially inner sides. It is possible to configure at least one of the axially spaced at least two sliding bearing elements to have a dirt-scraping function to maintain a predetermined low coefficient of friction between the respective ring elements and the hollow cylinder throughout the entire operating time of the device.
[0018] To protect at least one ring element, or extreme value indicator, arranged radially outward relative to the hollow cylinder from external influences such as dirt, and to maintain its functionality, it is practically possible to arrange both the hollow cylinder with the carrier element received therein and the extreme value indicator within a transparent cylinder. In this respect, the transparent cylinder, serving as a protective tube, can be arranged radially outward relative to the aforementioned components and receive them. For example, the protective tube can be made of transparent plastic or glass. In principle, the outer surface of the carrier element can be adapted to the inner surface of the hollow cylinder to optimize geometry, particularly in the form of a clearance fit, to provide easy mobility of the carrier element within the hollow cylinder. Practically, the carrier element can be constructed with a cylindrical outer surface, and the carrier element can have fastening elements on the end facing the motion transmission device for securing the carrier element to the motion transmission device, wherein the lateral bolts can be arranged on the end facing away from the motion transmission device. For example, the fastening element can be configured as a laterally or radially extending clamping screw to secure the motion transmission device, such as a Bowden wire, to the carrier at the end. According to the invention, other fastening methods can also be used to fasten the motion transmission device to the carrier, such as welding, brazing, or bonding. It should be noted that hollow cylinders, ring elements, and / or transparent cylinders do not necessarily have a circular cross-section in all embodiments. Instead, angular or differently curved cross-sections are also feasible within the scope of the invention.
[0019] The hollow tube and / or protective tube can be closed at one or both ends by means of a locking plate. The hollow tube configuration can be implemented such that it transitions at its ends into a load-bearing section for fastening the position indicating device according to the invention to the structural element. For example, this load-bearing section can be a threaded pin or threaded pin section through which the position indicating device can be fastened to the structural element by means of a nut.
[0020] In order to practically integrate the motion transmission device into the interior of the hollow cylinder for fastening to the carrier, a locking plate with a through hole is arranged on the end side of the hollow tube, the locking plate closing the cavity of the hollow cylinder at the end side, wherein, in the installation position, the motion transmission device, especially the Bowden line, can extend through the through hole.
[0021] Practically, it is possible to configure a transparent column or protective tube to be closed at the end, in particular by means of one or more described cover plates or support sections, so as to form a substantially closed cavity in which a hollow column, a carrier axially movable within the hollow column, and an extreme value indicator (in particular in the form of a first and / or second ring element) arranged radially outward relative to the hollow column and movable axially can be arranged.
[0022] Practically, a safety element can be arranged at the end of the hollow and / or transparent column to indicate the execution of the opening process on the position indicating device according to the invention. Such a stop element can be, for example, a stop ring with two mounting holes through which a lead-sealed wire can be guided to make unauthorized opening of the position indicating device according to the invention visible.
[0023] To provide zero-point indication, an indicator (such as a label) can be applied to the protective tube or transparent cylinder, especially on the outer surface of the transparent cylinder. Attached Figure Description
[0024] The present invention will now be described with reference to the accompanying drawings, including one embodiment and modifications, wherein...
[0025] Figure 1 A position indicating device according to a configuration of the present invention is shown for use with a remotely positioned impact brake;
[0026] Figure 2 Shown in longitudinal section Figure 1 The indicated location is the device;
[0027] Figure 3 In relation to Figure 2 The diagram is shown in a longitudinal section rotated 90°. Figure 1 The indicated location is the device;
[0028] Figure 4 This diagram shows a ring element that moves to contact and indicate the zero position, but does not have a protective tube. Figure 3 Cross-sectional view; and
[0029] Figure 5 Showing a position indicating device with an impact brake, relative to Figure 1 Another application of the diagram. Detailed Implementation
[0030] exist Figure 1The diagram illustrates a position indicating device 10 constructed according to the invention, configured to indicate the movement of a movable section of a carrier element configured here as an impact brake 5. Such an impact brake 5 is used, for example, in facility systems to immediately establish a robust, substantially rigid connection between a component to be fixed (e.g., a pipe) and the surrounding structure in the event of a failure, to receive the resulting impact kinetic energy and discharge it in a manner that does not damage the pipe. However, movement, especially caused by temperature, should not be prevented by the impact brake. For this reason, the impact brake is configured such that thermal displacement during the planned operation of the facility is not significantly resisted due to the special functional mode of the impact brake. For example, hydraulic impact brakes are known, the function of which is regulated by a main control valve arranged axially in a hydraulic piston. During slow piston movement (e.g., caused by thermal displacement), the valve is kept open by spring force, allowing hydraulic fluid to flow unimpeded from one chamber to another. When the piston moves rapidly beyond its limit speed (e.g., due to shock motion in the movable section of an impact brake, such as that caused by an earthquake), the dynamic pressure head appearing at the valve disc causes the valve to close, interrupting the hydraulic flow and blocking the movement. Such hydraulically actuated impact brakes are described, for example, in publication EP 0342405 A1.
[0031] exist Figure 1 In the impact brake 5 shown, the section indicated by reference numeral 5a is arranged to be movable relative to the fixed section 5b about the longitudinal axis, wherein, in an exemplary application for fixing a pipe, one of the two sections is connected to the pipe, and the other section is connected to the load-bearing structure via their respective fastening tabs. Figure 1 In the operation of the impact brake 5, in the described embodiment, the outer sleeve of the movable section 5a moves coaxially with the column section 5b fixed thereon.
[0032] To indicate the relative positions of the two relatively movable sections 5a and b of the impact brake 5, a position indicating device 10 constructed according to the invention is provided. This device has an indicating element 20, which is kinetically coupled to the movable section 5a of the impact brake 5 via a Bowden wire 50 having a core, by means of a clamping connection. For this purpose, in the described embodiment, a fastening element (e.g., a hose clamp 51a) is forcefully locked around the sleeve of the movable section 5a, wherein a clamping element 52 is arranged on the fastening element, and the core of the Bowden wire 50 is clamped to the fastening element, thereby kinetically coupling the Bowden wire to the movable section 5a. In the described embodiment, the sheath of the Bowden wire 50 can be routed via a guide element 53, which is fastened to the fixed section 5b of the impact brake 5. For this purpose, a hose clamp 51b can also be provided, which is forcefully locked to the cylindrical outer casing of the fixed section 5b of the impact brake 5. When the movable section 5a moves relative to the fixed section 5b of the impact brake 5, the longitudinal extension of the Bowden line between the clamping element 52 and the guide element 53 changes, which is indicated by the motion coupling between the motion transmission device, or the Bowden line, and the drive member on the indicating device 20.
[0033] Therefore, the indicating device coupled to the Bowden line 50 can be constructed according to the invention, as described below. Figures 2 to 4 The diagrams will be discussed. Figure 2 The Bowden line 50 with coupling is shown in a longitudinal cross-sectional view. Figure 1 The indicating device 20. In the described embodiment, the indicating device 20 includes a hollow cylinder 21, which can be configured as circular or cylindrical on both the inner and outer casing sides. This hollow cylinder extends substantially over the entire longitudinal extension of the indicating device 20. A cylindrical carrier 30 is arranged within the hollow cylinder 21, the outer diameter of which is adapted to the inner diameter of the hollow cylinder 21, such that the carrier 30 is axially movable within the hollow cylinder, for example, within a clearance fit. The carrier 30 has a longitudinal section 30a facing the Bowden line 50, in which the carrier includes a clamping bore 31, in which the core of the Bowden line 50 extending into the interior space of the hollow cylinder 21 can be clamped, for example, by means of a radially oriented countersunk screw (not shown in the figures).
[0034] In the described embodiment, at the longitudinal side section 30b opposite the first-mentioned longitudinal side section 30a of the carrier 30, the carrier includes a transverse bolt 40 that extends through the radial passage of the carrier 30 on both sides and is guided together with the carrier 30 in the event of movement transmitted by means of the core of the Bowden wire 50.
[0035] In the described embodiment, the hollow cylinder 21 is closed on its Bowden line-facing end side by means of a locking disc 24, which has a drilled hole 25 for the Bowden line 50 to pass through. The hollow cylinder 21 can also include a separate locking disc manufactured separately from the hollow cylinder on its opposite end side, or, as in the described embodiment, a locking disc 26 manufactured integrated with the hollow cylinder 21. Figure 2 As can be seen, in the described embodiment, the integrated locking disc 26 can transition into a threaded pin 27, which can be used to fasten the indicating device by means of a fastening nut 28 and an associated fastening element or flange element 29.
[0036] In addition, such as from Figure 2 As can be seen, the indicating device 20 also has two ring elements 42a, b arranged on the outer surface of the hollow column 21 about the two longitudinal sides of the carrying member 30 and movably arranged thereon. The ring elements are arranged in the indicating device 20 as extreme position indicators in a manner that will also be described.
[0037] For the interaction between the actuating member 30 and two ring elements 42a and b arranged respectively with respect to the longitudinal side, the ring elements respectively provide stop surfaces 46a and b on their end sides facing the actuating member in the installed position. In the described embodiment, these stop surfaces are shown as the bottom surfaces of axial slots 43a and b. The stop surfaces 46a and b cooperate with the stop surfaces, or axial surfaces 41a and b, associated with the actuating member 30 according to the deflection of the actuating member 30, to move the ring elements 42a and b indicating extreme position values. The axial extensions of the slots 43a and b are adapted to the axial extensions of the transverse bolt 40 such that, during the opposing movement of the two ring elements 42a and b until their end faces contact each other, the transverse bolt 40 is completely received in the two slots 43a and b (which form a cavity in the mentioned operating state), as will be discussed below.
[0038] To protect the entire indicating device 20 of the position indicating device 10 according to the invention from external influences such as dust and from manipulation attempts, the position indicating device according to the invention can be provided with a transparent hollow column or protective column, in this case, a glass column 48, which radially receives the hollow column together with the carrier disposed therein, and receives a transverse bolt extending radially from this hollow column and ring elements 42a, b arranged radially relative to the hollow column 30 and movable relative to this hollow column. Here, locking discs 24, 26 can provide a contact surface for the glass column 48, such that there is a substantially closed cavity in which the indicated element described is arranged to be movable, the indicated element being arranged to be movable directly (by the carrier) or indirectly via the carrier (ring element) through the Bowden line 50.
[0039] Figure 3 Shown in Figure 2 The indicator 20 described herein is rotated 90° relative to the axis of the hollow cylinder 21, such that the rod-shaped transverse bolt 40 is perpendicular to the plane of the drawing. The illustration provides a full view of the longitudinal groove 23, which is arranged radially opposite to the obscured longitudinal groove 22. See also... Figure 2 As can be seen in the described embodiments, the cross-section of the transverse bolt is constructed to be circular, but this cross-section can also be formed differently, especially polygonal.
[0040] To protect the indicating device 20, in the described embodiment, a stop ring 49 is arranged and inserted into a radial groove formed in the locking disc 24, such that the stop ring prevents the glass cylinder 48 from being pulled down in the axial direction. Manipulation of the indicator can be avoided, for example, by guiding and sealing the stop line through a mounting hole in the stop ring (not shown in the drawings).
[0041] To prevent the ring elements 42a and b from tilting on the outer surface of the hollow cylinder 21, annular sliding bearing elements 44a and 45a, or 44b and 45b, configured to abut against the outer surface of the hollow cylinder and axially spaced from each other, can be provided. Here, at least one of the two sliding bearing elements (sliding bearing elements 45a and b in the described embodiment) can be configured as a dirt scraper to remove or prevent possible deposits on the outer surface of the hollow cylinder 21.
[0042] Figure 4 This illustrates the situation when the position indicating device according to the invention is being set up, or in its zero position, wherein it is assumed that the movable section of the carrying element (here, the impact brake 5) is in a stationary position. Here, by removing the stop ring 49 and pulling down the protective tube 48, the driving element has been positioned on the movable section 5a of the impact brake by correspondingly placing the Bowden line (see...). Figure 1 This is achieved by fastening the actuator 30, or the lateral bolt 40, so that it is in the position of the indicating device 20 corresponding to the current position of the impact brake. (See reference) Figure 2 The diagram illustrates this, where the two ring elements 42a and b are moved toward the actuating member 30 until they contact each other at their ends, wherein the transverse bolt 40 is fully received by the axial slots 43a and b. Therefore, in Figure 4The relative positions of the carrier elements 30 and the extreme values of the ring elements 42a and b indicating the movement of the carrier elements show the starting position or zero position, in which the bearing element (here, the impact brake) is in the installed position. Afterwards, the protective tube 48 can be assembled and secured by spreading the stop ring 49. To mark this zero position, a corresponding mark can practically be applied to the transparent protective tube 48, for example, by adhesion. Similarly, a scale can be applied to the protective tube to read the instantaneous position and / or extreme position. After performing the described adjustments, the position indicating device according to the invention is ready for use.
[0043] Figure 5 Another application example is shown, where, with Figure 1 In a different implementation, the position indicating device according to the invention, which has the same structure, is not arranged away from the impact brake of the same structure, but is arranged directly on the impact brake. The position indicating device can be fastened to the movable or immovable section of the impact brake, while the core of the Bowden wire is clamped at the end to the corresponding other section of the impact brake 5 to perform the described position indication on the indicating device 20 of the position indicating device.
[0044] List of reference numerals
[0045] 10. Position indicating device
[0046] 5. Impact Brake
[0047] 5a Movable Section
[0048] 5b Fixed Section
[0049] 20 Indicating devices
[0050] 21 Hollow Column
[0051] 22 Longitudinal groove
[0052] 23 Longitudinal groove
[0053] 24 Lockout Disc
[0054] 25 Drilling
[0055] 26 Locking disc
[0056] 27 Threaded pins
[0057] 28 Fastening nuts
[0058] 29. Flange components and fastening components
[0059] 30 Carrying parts
[0060] 30a Longitudinal side section
[0061] 30b Longitudinal side section
[0062] 31 Clamping the drill hole
[0063] 40 Transverse bolt
[0064] 41a, b Stop surfaces
[0065] 42a, b ring elements
[0066] 43a, b Axial slots
[0067] 44a, b Annular sliding bearing elements
[0068] 45a, b Annular sliding bearing elements
[0069] 46a, b Bottom and stop surfaces
[0070] 48. Glass column, protective tube
[0071] 49. Retaining ring
[0072] 50 Bowden Line
[0073] 51a, b Hose clamps
[0074] 52 Clamping elements
[0075] 53 Guiding elements
Claims
1. A position indicating device (10) for indicating the movement of a movable section of a carrier element relative to a fixed section, the position indicating device comprising: - A mechanical motion transmission device, which can be fastened to the bearing element on the input side for transmitting the motion of the movable section (5a) of the bearing element; - An indicator (20) for indicating the movement of the movable section (5a), wherein the motion transmission device is coupled to the indicator (20) on the output side, and the indicator (20) has a hollow column (21) and a carrier (30) movably supported in the hollow column and movably coupled to the motion transmission device, wherein the hollow column (21) has a first longitudinal groove (22), and a radially outwardly oriented transverse bolt (40) moving together with the carrier (30) extends in the first longitudinal groove, the transverse bolt being configured to move at least one extreme indicator arranged radially outward relative to the hollow column (21).
2. The position indicating device (10) according to claim 1, characterized in that, The load-bearing elements are springs or constant force hangers, impact brakes (5), shock absorbers and / or hinged supports.
3. The position indicating device (10) according to claim 1, characterized in that, The transverse bolt (40) is rigidly fastened to the carrier (30).
4. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, The hollow column (21) has another longitudinal groove (23) arranged radially opposite to the first longitudinal groove (22), wherein the transverse bolt (40) extends radially through the two longitudinal grooves (22, 23).
5. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, The motion transmission device is configured to be fastened to the movable section of the bearing element.
6. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, The motion transmission device is configured to convert the translational motion acquired on the input side into translational motion on the output side.
7. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, The motion transmission device includes mechanical elements configured to transmit tension and pressure, and is a Bowden line (50) for transmitting tension and pressure.
8. The position indicating device (10) according to claim 7, characterized in that, The motion transmission device includes a Bowden line (50) configured to transmit tension and pressure.
9. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, The extreme value indicator has at least one first ring element (42a) surrounding the hollow cylinder (21) and arranged to be axially movable relative to the hollow cylinder.
10. The position indicating device (10) according to claim 9, characterized in that, The extreme value indicator has at least one second ring element (42b) that surrounds the hollow cylinder (21) and is axially movable relative to the hollow cylinder (21) independently of the first ring element (42a).
11. The position indicating device (10) according to claim 9, characterized in that, The first ring element (42a) and / or the second ring element (42b) have axial slots (43a, 43b) on the end side facing the carrier (30) for receiving the transverse bolt (40) at least in sections in the axial direction.
12. The position indicating device (10) according to claim 11, characterized in that, The bottom of the axial slots (43a, 43b) of the first ring element (42a) and / or the second ring element (42b) provides an axial stop surface for the transverse bolt (40).
13. The position indicating device (10) according to claim 9, characterized in that, The first ring element (42a) and / or the second ring element (42b) have sliding bearing elements (44a, 44b; 45a, 45b) on their radially inner sides to support the ring elements on the hollow column (21).
14. The position indicating device (10) according to claim 13, characterized in that, The first ring element (42a) and / or the second ring element (42b) have at least two axially spaced sliding bearing elements (44a, 44b; 45a, 45b) on the radially inner side, wherein at least one of the axially spaced at least two sliding bearing elements is capable of having a dirt scraping function.
15. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, The hollow cylinder (21) with the carrier (30) therein and the extreme value indicator are both arranged in the protective tube (48).
16. The position indicating device (10) according to claim 15, characterized in that, The protective tube (48) is transparent.
17. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, The carrying member (30) is configured to have a columnar outer cover, and the carrying member has a fastening element on the end side facing the motion transmission device for fastening to the motion transmission device, wherein the transverse bolt (40) is arranged on the end side away from the motion transmission device.
18. The position indicating device (10) according to claim 15, characterized in that, The hollow column (21) transitions into the load-bearing section at the end to secure the position indicating device (10) to the structural element.
19. The position indicating device (10) according to any one of claims 1 to 3, characterized in that, A locking plate with a through hole is arranged on the end side of the hollow column, and the locking plate closes the cavity of the hollow column on the end side, wherein the motion transmission device extends through the through hole in the installation position.
20. The position indicating device (10) according to claim 18, characterized in that, The protective tube is attached to the bearing section and the cover plate at its end, and together with the bearing section and the cover plate, they form a cavity.
21. A support device for movably supporting a structural element relative to a fixed support portion, the support device further comprising a position indicating device (10) according to any one of claims 1 to 20.
22. The bearing device according to claim 21, characterized in that, The bearing device is an impact brake (5).
23. The bearing device according to claim 21, characterized in that, The fixed support part is the building.
24. The bearing device according to claim 21, characterized in that, The structural element is a pipe.
25. An application of a position indicating device according to any one of claims 1 to 20, for indicating the movement of a movable section of a carrying device relative to a fixed section.
26. The application according to claim 25, characterized in that, The load-bearing elements are springs or constant force hangers, impact brakes (5), shock absorbers and / or hinged supports.