EP3396246A1 - Measurement site system - Google Patents

Abstract

The invention relates to a measuring point system (1) having an outer line component (3) which has at least one outer line component measuring opening (9) and an inner line component (4) which is surrounded at least sectionally by the outer line component (3) and which has at least one outer side of having the inner line component (4) in the direction of the Außenleitungsbauteilmessöffnung (9) extending and a connection to the interior (8) of the inner line component (4) producing Meßstutzen (6) with an end formed Innenleitungsbauteil measuring opening (7), wherein at least one closure element (2) detachably mounted on the outer line component (3) and the at least one outer line component measuring opening (8) is designed to be occlusive. A gap (24) is formed between the inner pipe component measuring port (7) and the outer pipe member (3), the at least one shutter member (2) having an elongated body (10) attached to the outer pipe member when the at least one shutter member (2) is attached (3) extends at least in sections into the at least one measuring stub (6) and in which both the at least one outer line component measuring opening (9) and the at least one inner line component measuring opening (7) are designed to be sealing.

Description

The invention is directed to a measuring point system having an outer line component, which has at least one outer line component measuring opening, and an inner line component, which is surrounded by the outer line component at least partially and which at least one outside of the inner line component in the direction of Außenleitungsbauteilmessöffnung extending and connect to the interior of the Having an inner line component producing measuring stub with an end formed Innenleitungsbauteilmessöffnung, wherein at least one closure element is releasably attached to the outer line component and the at least one outer line component measuring opening is formed occlusive. In particular, the present invention is directed to a boiler fitting for exhaust systems with such a measuring point system.

For the air-exhaust operation of modern heat generators, especially condensing or low-temperature equipment, double-walled piping systems or piping systems are increasingly used to safely dissipate the exhaust gas produced during combustion and on the other hand supply the supply air required for combustion through a space-saving wiring, wherein during the supply, the supply air is energy-saving preheated by the exhaust gas discharged. Such known line systems consist of an outer line component and an inner line component which is concentrically surrounded by the outer line component, wherein the line components can be circular pipelines in cross section. For exhaust gas measurement or for a sample removal of the exhaust gas is in such a system, an externally accessible measuring point available.

A measuring points system of the type mentioned is, for example, from the DE 100 53 067 C1 known. The measuring point system is in this case formed on a boiler connecting piece and has an inner exhaust pipe and a concentrically and spaced apart, external air supply line. The exhaust pipe further comprises a pipe piece designed as a measuring nozzle, which extends radially from the outside of the exhaust pipe. The exhaust pipe is connected via radial webs and the measuring stubbornly connected to the supply air line. Trained as a measuring piece pipe section is led out to the outside of the supply air line and closed by a plug. After removal of the plug, a probe for flue gas sampling can be introduced into the exhaust pipe through the measuring nozzle.

In this known measuring points system, it is a great disadvantage when the plug for the pipe section is leaking, because then exits exhaust gas in the installation room of the exhaust system, resulting in dangerous for people exhaust concentration in the installation room.

The invention has for its object to provide a solution that provides a measuring points system in a structurally simple manner, which is cost-effective to manufacture it and also guarantees improved safety in the event of a leak of the plug or closure, the opening of a One of one
Outside line component surrounded inner line component closes.

In a measuring point system of the aforementioned type, the object is achieved in that a gap between the Innenleitungsbauteilmessöffnung and the outer line component is formed, wherein the at least one closure element has an elongated body which at least partially when attaching the at least one closure element to the outer line component extends into the at least one measuring stub and both the at least one Außenleitungsbauteilmessöffnung and the at least one Innenleitungsbauteilmessöffnung is sealingly formed. For the purposes of the invention, an arrangement of the outer line component and the inner line component is to be understood to mean arrangements in which either angular channels or tubes of circular cross-section are arranged concentrically with one another, for example.

Advantageous and expedient refinements and developments of the invention will become apparent from the dependent claims.

The invention provides a measuring point system which is characterized by a functionally suitable construction and has a compact and cost-effective construction. In the measuring point system according to the invention, a double safety with regard to the tightness is achieved. For if the region of the elongated body, which at least in sections extends into the measuring stub and is intended to seal the inner pipe component measuring opening when the closure element is attached to the outer pipe component, for example, an exhaust gas flowing through the inner pipe component may only flow into the outer pipe component, but never from the outdoor piping to the external environment, such as a closed exhaust booth installation space, because the closure member provides double security by sealing both the outer pipe component sensing port and the inner pipe component sensing port. In fact, leakage occurs at the inner pipe component sensing port , So that exhaust gas flows into the outer pipe component, the exhaust system will display a fault message due to the supply air laden with exhaust gas, but there is no escape of exhaust gas in the installation room com mt. Rather, due to the fault message, the tightness of the Innenleitungsbauteilmessöffnung checked and restored without causing a dangerous situation for persons due to an increased exhaust gas concentration in the installation room. It should be noted that the present invention is not limited to a metering point system for the air-off-gas operation of heat generators, but may also be used wherever measurement or sampling of a fluid flowing through an inner pipe member of a double-walled piping system is required is.

In an embodiment, the invention provides that the at least one measuring stub ends at a predetermined distance from the at least one outer line component measuring opening. Despite the existing gap between the Innenleitungsbauteilmessöffnung and the outer pipe member and the measuring stub could extend into the Außenleitungsbauteilmessöffnung - however, by the configuration that the measuring stub ends at a predetermined distance to the Außenleitungsbauteilmessöffnung, ensured in each case that a sufficient gap is present through in case of leakage of the inner pipe component measuring port, the fluid flowing through the inner pipe member, such as exhaust gas, flows into the outer pipe member.

To increase the sealing effect on the inner pipe component measuring opening, the invention provides in a further embodiment that a sealing portion is formed at a first longitudinal end of the elongated body of the at least one closure element, which is arranged at attachment of the at least one closure element to the outer line component within the at least one Meßstutzens and on which at least one circumferential and extending from the elongated body sealing lip is formed, which is formed elastically deformable. Also, more than one sealing lip may be formed on the elongated body, the elongate body sealing with the portion having the at least one sealing lip sealing the inner conduit component measuring opening is pressed into the measuring stub. Consequently, the elongate body of the at least one closure element does not have to be adapted very precisely to the cross-section of the measurement nozzle, so that the elongated body can be produced with generous tolerances, since the at least one sealing lip ensures the sealing effect. Consequently, the elongate body together with the at least one sealing lip has a larger cross-section than the measuring stub.

For simple assembly and disassembly of the closure element, the invention provides in an embodiment that at a second longitudinal end of the elongated body of the at least one closure element is formed in comparison to the elongated body having a larger cross-section head portion for handling the at least one closure element. The closure element, which must be tightened for attachment to the outer line component in the manner of a screw can be rotated with appropriate design of the head section either by hand or with the aid of a coin or an Allen wrench.

To seal the Außenleitungsbauteilmessöffnung it is advantageous if at least one around the elongated body encircling and elastically formed sealing lip member is formed on the elongated body of the at least one closure element between the sealing portion and the head portion, which when attaching the at least one closure element to the outer line component on the Outside of the outer line component sealingly closes the at least one Außenleitungsbauteilmessöffnung. The sealing lip member thus seals the area between the elongate body of the at least one closure member and the outer conduit member opening.

The invention provides in a further embodiment, that the at least one closure element by means of a locking mechanism releasably connected to the outer line component can be fixed, wherein for releasably fixing the at least one closure element on the outer line component, the at least one closure element from an open position in which the closure element from the at least one Außenleitungsbauteilmessöffnung is pulled out, in a locking position, in which a movement of the at least one closure element from the at least one Außenbauleiteitbauteilmessöffnung is blocked by means of the locking mechanism is rotatable. According to the development defined positions exist for the closure element, so that when a correspondingly mounted marking in a region of the closure element, which is visible from the outside, it can be immediately recognized whether the closure element is in a locked and secured position for sealing the system.

A structurally simple way for a secure locking and thus sealing is realized in an embodiment of the invention in that the locking mechanism comprises at least one locking lug, which is formed on the elongate body of the at least one closure element, wherein the at least one locking lug in the locking position of the at least one closure element the edge of the at least one outer line component measuring opening is arranged engaging behind, whereas the at least one locking lug is arranged in the open position of the at least one closure element in alignment with an extended region of the at least one Außenleitungsbauteilmessöffnung. In this case, the closure element can be pulled out only in the open position from the Außenleitungsbauteilmessöffnung the outer line component, which reduces the Verlierbarkeit the closure element during disassembly for measurement purposes.

For secure fixation of the closure element, so that it does not move back from its locked position during vibration the opening position is provided in an embodiment of the invention that the at least one locking lug of the at least one closure element has a rising suit surface and a subsequent tightening surface subsequent, sloping holding surface and that on the at least one Außenleitungsbauteilmessöffnung inside the outer line component is formed a blocking approach, wherein in the locking position of the at least one closure element, the sloping holding surface bears against the blocking projection and the blocking projection blocks a movement of the at least one closure element in the direction of the open position.

In order for the operator to sense a movement of the closure element from the open position into the locking position, the invention provides, in a further embodiment, for fixing the at least one closure element to the outer line component when the at least one closure element moves from the open position into the locking position Suit surface moves over the blocking approach away and the blocking approach thereby urges the at least one closure element in the direction of the inner line component. Consequently, an increased force must be used to move the closure element from the open position to the locking position. In addition, the rising suit surface ensures that the closure element is moved in the direction of the inner line component, whereby the sealing effect is increased.

The invention provides in a further embodiment, that on the elongate body of the at least one closure element, two locking lugs are formed, which are formed diametrically opposite one another on the elongated body. In this case, the second locking projection in the locking position of the closure element can engage behind the edge of the at least one outer line component measuring opening, so that the closure element is secured very securely by means of a positive connection to a movement away from the measuring stub.

Finally, in a further embodiment, the invention provides that a stop area is formed on the at least one outer line component measuring opening, against which one of the two locking lugs rests in the locking position of the at least one closure element. In this way, the end position of the closure element is defined in the locking position and thus ensures that the closure element is actually positioned in its locking position and not in an overlying position.

It is understood that the features mentioned above and those yet to be explained can be used not only in the respectively indicated combination but also in other combinations or in isolation, without departing from the scope of the present invention. The scope of the invention is defined only by the claims.

• Figur 1 ein erfindungsgemäßes Messstellen-System gemäß einem ersten Ausführungsbeispiel,
• Figur 2 eine perspektivische Einzelteildarstellung des Messstellen-Systems aus Figur 1,
• Figur 3 eine seitliche Schnittansicht des Messstellen-Systems aus Figur 1,
• Figur 4 eine vergrößerte Detailansicht aus Figur 3,
• Figur 5 eine wie in Figur 4 gezeigte Darstellung, bei welcher auf eine Abbildung von Verschlusselementen verzichtet wurde,
• Figur 6 eine Rückansicht auf das Messstellen-System aus Figur 1, wobei auch hier auf eine Darstellung von Verschlusselementen verzichtet wurde,
• Figur 7 eine perspektivische Darstellung eines Verschlusselements,
• Figur 8 eine weitere perspektivische Ansicht auf das Verschlusselement aus Figur 7,
• Figur 9 eine Seitenansicht auf das in Figur 7 gezeigte Verschlusselement,
• Figur 10 eine Draufsicht auf das in Figur 7 gezeigte Verschlusselement,
• Figur 11 eine seitliche Schnittansicht des in Figur 7 gezeigten Verschlusselements,
• Figur 12 eine weitere seitliche Schnittansicht des in Figur 7 gezeigten Verschlusselements, wobei es sich im Vergleich zu Figur 11 um einen um 90° gedrehten Schnitt handelt,
• Figur 13 das erfindungsgemäße Messstellen-System gemäß einem zweiten Ausführungsbeispiel,
• Figur 14 eine perspektivische Schnittdarstellung des Messstellen-Systems aus Figur 13,
• Figur 15 eine Detail-Schnittansicht von zwei Messstellen des erfindungsgemäßen Messstellen-Systems,
• Figur 16 eine weitere Detail-Schnittansicht von einer Messstelle des erfindungsgemäßen Messstellen-Systems,
• Figur 17 eine noch weitere Detail-Ansicht einer Messstelle des Messstellen-Systems,
• Figur 18 eine Ansicht auf eine Außenleitungsbauteilmessöffnung des Messstellen-Systems, und
• Figur 19 eine Detail-Ansicht auf ein Verschlusselement in Öffnungsstellung.

Further details, features and advantages of the subject matter of the invention will become apparent from the following description taken in conjunction with the drawings in which exemplary preferred embodiments of the invention are shown. In the drawing shows:

• FIG. 1 an inventive measuring point system according to a first embodiment,
• FIG. 2 an individual perspective view of the measuring points system FIG. 1 .
• FIG. 3 a side sectional view of the measuring points system FIG. 1 .
• FIG. 4 an enlarged detail view FIG. 3 .
• FIG. 5 a like in FIG. 4 shown illustration, in which was dispensed with an image of closure elements,
• FIG. 6 a rear view of the measuring points system FIG. 1 , whereby also here an illustration of closure elements was dispensed with,
• FIG. 7 a perspective view of a closure element,
• FIG. 8 another perspective view of the closure element FIG. 7 .
• FIG. 9 a side view on the in FIG. 7 shown closure element,
• FIG. 10 a top view of the in FIG. 7 shown closure element,
• FIG. 11 a side sectional view of the in FIG. 7 shown closure element,
• FIG. 12 another sectional side view of the in FIG. 7 shown closure element, which is compared to FIG. 11 is a 90 ° rotated section,
• FIG. 13 the measuring point system according to the invention according to a second embodiment,
• FIG. 14 a perspective sectional view of the measuring points system FIG. 13 .
• FIG. 15 a detailed sectional view of two measuring points of the measuring points system according to the invention,
• FIG. 16 a further detail sectional view of a measuring point of the measuring points system according to the invention,
• FIG. 17 a further detailed view of a measuring point of the measuring point system,
• FIG. 18 a view of a Außenleitungsbauteilmessöffnung the measuring point system, and
• FIG. 19 a detailed view of a closure element in the open position.

In the FIGS. 1 to 19 show two embodiments of an inventive measuring point system 1, wherein the FIGS. 1 to 6 to a first embodiment and the FIGS. 13 to 15 to a second embodiment of the Refer to measuring point system 1. In the FIGS. 7 to 12 a closure element 2 is shown in various representations, which is identical for both embodiments of the measuring point system 1 and is used in both embodiments. The FIGS. 16 to 19 show the attachment of the closure element 2 to an outer line component 3 of the measuring point system 1, which also applies to both embodiments validity.

The two exemplary embodiments of the measuring point system 1 according to the invention differ only in the number of existing measuring points, so that the following description applies to both exemplary embodiments.

The measuring point system 1 according to the invention has the outer line component 3 and an inner line component 4, which is surrounded by the outer line component 3. In this case, the inner line component 4 is partially surrounded by the outer line component 3, as the FIGS. 1 . 3 . 13 and 14 for both embodiments show. In these embodiments, a pipe section of the inner pipe component 4 projects out of the outer pipe component 3, wherein it is also conceivable that the outer pipe component 3 completely surrounds the inner pipe component 4. The measuring point system 1 shown in the figures is intended for a boiler connection piece for exhaust systems, which in the exemplary embodiments shown are concentric pipe bends. However, the invention is not limited to this application, but can also be used wherever measurements or sample withdrawals of two fluid flows are desired, which flow through the inner line component 4 on the one hand and through the outer line component 3 on the other hand, wherein the inner line component 4 and the External line component 3 define a double-walled pipe system.

How the comparison of FIGS. 1 and 13 shows, the measuring point system 1 of the first embodiment, two Measuring points 5a and 5b, whereas in the second embodiment four measuring points 5 are provided (see FIG. 14 ). In the exemplary embodiments, the measuring points 5 a are provided for a sample removal of a fluid flowing through the inner line component 4, whereas the measuring point 5 b is intended for a sample withdrawal for a fluid which flows in the space formed between the outer line component 3 and the inner line component 4 , In the specific case of an exhaust system, the measuring points 5a serve for a measurement of the exhaust gas flowing for the inner line component 4 and the measuring points 5b for a measurement of the incoming air flowing between the inner line component 4 and the outer line component 3.

For measuring or sampling the fluid or exhaust gas flowing through the inner line component 4, a measuring stub 6 is provided, which extends from the outside of the inner line component 4 in the direction of the outer line component 3 and is formed with an inner line component measuring opening 7 at the end (see Figure 2 or 16 ). The inner line component measuring opening 7 establishes a connection to the interior 8 of the inner line component 4 via the measuring stub 6 so that, for example, a measuring probe used at the measuring point 5a can be guided into the interior 8 of the inner line component 4 via the measuring stub 6 for measurement. In this case, the measuring probe arrives at the measuring connection 6 via an outer line component opening 9 formed in the outer line component 3. For measuring or sampling the fluid flowing between the outer line component 3 and the inner line component 4, ie the supply air, a further outer line component measuring opening 9 is provided (see for example FIG FIG. 2 ).

In contrast to the first embodiment, two measuring points 5a and 5b are therefore provided for an exhaust gas and a supply air measurement in the second embodiment, wherein in both embodiments, the Außenleitungsbauteilmessöffnungen 9 for both measuring points 5a and 5b are formed identical. In both embodiments shown in the figures, the closure elements 2 for the measuring points 5a and 5b are of identical construction. In this case, a respective closure element 2 is detachably attached to the outer line component 3 and closes the associated outer line component measuring opening 9 in a sealing manner. A respective closure element 2 thus seals the outer line component measuring opening 9 assigned to it, when it is inserted into the outer line component measuring opening 9 and, if applicable, detachably fixed there, as will be discussed in greater detail below. It is understood that the closure elements 2 as well as the outer line component 3 and the inner line component 4 belong to the measuring point system 1 according to the two embodiments. For the sake of completeness it should be mentioned that in FIG. 2 Further, a serving for connection flange 29 and a sealing ring 30 are shown.

The measuring stub 6 extends in the direction of the outer line component measuring opening 9 and has the inner line component measuring opening 7 at the end. A respective closure element 2, which is used universally for sealing both measuring points 5a and 5b, but in particular for sealing a respective measuring point 5a, has an elongate body 10. Because this elongated body 10 extends at least partially into the measuring port 6 when attaching the closure element 2 at the respective measuring point 5 a of the outer line component 3. When attached seals the closure element 2 according to the invention from the entire measuring point 5a. This means that the shutter member 2 seals both the outer pipe component measuring port 9 and the inner pipe component measuring port 7, such as those shown in FIGS FIGS. 3, 4 . 14, 15 and 16 for both embodiments can be seen. The closure element 2 is in detail for different views in the FIGS. 7 to 12 shown. At a first longitudinal end 11 of the elongated Body 10 of a respective closure element 2, a sealing portion 12 is formed (see, for example FIGS. 9, 11 or 12 ). When attaching the respective closure element 2 at an associated measuring point 5a of the sealing portion 12 is disposed within the Meßstutzens 6, as it FIGS. 3, 4 . 14, 15 and 16 demonstrate. For sealing the measuring nozzle 6, the sealing portion 12 has a total of four sealing lips 14, which are circumferentially offset around the elongated body 10 in the longitudinal direction of the elongated body 10. Alternatively, only a single sealing lip 14 could be formed on the elongated body 10. The respective sealing lips 14 are elastically deformable, so that when the closure element 2 is inserted into the outer line component measuring opening 9 of the measuring point 5a, the sealing section 12 is inserted into the inner line component opening 7 of the measuring stub 6, which extends in alignment with the outer component measuring opening 9, and thereby the inner line component opening 7 seals. To improve the handling of the closure element 2 during its assembly on or disassembly of the outer line component 3, a respective closure element 2 at a second longitudinal end 15 of the elongated body 10 has a head portion 16 which ensures easy manual handling of the closure element 2. The head portion 16 has a larger cross section 17 compared to the elongate body 10. Furthermore, a sealing lip element 18 is integrally formed on the elongate body 10 of a respective closure element 2. The sealing lip member 18 is circumferentially formed around the elongated body 10 and disposed between the sealing portion 12 and the head portion 16. Furthermore, the sealing lip element 18 is designed to be elastic and seals the respective outer line component measuring opening 9 when a respective closure element 2 is attached to the measuring points 5a and 5b. The FIGS. 11 and 12 show respective sectional views of the Closure element, wherein the sectional planes BB and CC from the top view FIG. 10 emerge.

A respective closure element 2 is by means of a locking mechanism 19 (see for example FIG. 15 ) releasably fixable to the outer line component 3. Accordingly, the closure element 2 for releasably fixing to the outer line component 3 from an open position (see, for example FIG. 19 ), in which a respective closure element 2 is removable from the measuring points 5a, 5b and can be pulled out of the associated outer line component measuring opening 9, into a locking position (see for example FIG FIG. 15 ) is movable, in which a movement of the respective closure element 2 is blocked out of the associated Außenbauleitungsbauteilmessöffnung 9 out with the aid of the locking mechanism 19. In this case, the movement of the respective closure element 2 between the open position and the locking position is a rotary movement, wherein the closure element 2 is inserted for mounting in an outer component line opening 9 and pulled out for disassembly.

The locking mechanism 19 comprises two locking lugs 20a and 20b (see for example FIGS. 8, 11 and 15 ) formed on the elongated body 10 of a respective closure member 2. The two locking lugs 20 a, 20 b are formed diametrically on the elongate body 10 and disposed between the sealing lip member 18 and the sealing portion 12 on the elongate body 10. Alternatively, it is also conceivable that only one locking lug is formed on the elongated body 10 of a respective closure element 2. For it is sufficient if only one of the locking lugs 20a, 20b in the locking position of the respective closure element 2, the edge 21 of the associated Außenleitungsbauteilmessöffnung 9 engages behind (see, for example FIG. 15 ). Furthermore, in the exemplary embodiments shown, one of the both locking lugs 20b to indicate the achievement of the locking position noticeably for an operator. For on a respective outer line component measuring opening 9, a stop region 23 is formed, on which the one of the two locking lugs 20 b rests in the locking position of a respective closure element 2, which in FIG. 17 is shown, in FIG. 18 can be seen by omitting the closure element 2 of the stopper portion 23 of the Außenleitungsbauteilmessöffnung 9. The respective outer line component measuring openings 9 each have an enlarged area 22 (see, for example FIGS. 6 and 18 ), which is for the dismantling of a respective closure element 2 and for sample removal of importance. In the open position of a respective closure element 2, the two locking lugs 20a, 20b are arranged in alignment with the extended area of the respective outer line component measuring opening 9, so that the closure element 2 can be pulled out of the outer line component measuring opening 9.

According to the invention, a gap 24 is formed between the inner line component measuring opening 7 and the outer line component 3 when a respective closure element 2 is plugged into an associated outer line component measuring opening 9 of a measuring point 5 a and the sealing section 12 of the elongate body 10 is sealingly arranged in the measuring socket 6, as shown in FIGS FIGS. 4, 5 . 15 and 16 can be seen. Should the sealing section 12 no longer be able to fulfill its sealing function, the fluid flowing through the inner line component 4 does not flow into the outer environment but into the outer line component 3, which significantly increases the safety of the measuring point system 1 compared to known systems. As shown in the exemplary embodiments, a respective measuring port 6 terminates at a predetermined distance 25 to the associated outer line component measuring opening 9, although this is not absolutely necessary, because the measuring port 6 could also within the Außenleitungsbauteilmessöffnung 9 ends, as long as the sealing lip member 18 seals the Außenleitungsbauteilmessöffnung 9 and a gap 24 between the measuring stub 6 and the sealing lip member 18 is provided, through which the flowing in the inner pipe member 4 fluid from the measuring stub 6 in the space between the outer pipe member 3 and the inner line component 4 can flow.

In order for a respective closure element 2 to remain arranged in its locking position, a respective locking projection 20a, 20b has a holding surface 26 (see, for example, FIG Figures 9 and 19 ) disposed radially endwise on a respective locking lug 20a, 20b, and a respective outer line component measuring opening 9 on the inside of the outer line component 3, a blocking projection 27 (see FIG FIGS. 18 and 19 ) on. If a respective closure element 2 (regardless of whether it is to be locked at the measuring point 5a or 5b to seal a respective outer line component measuring opening 9 at this) from its open position (this is in FIG. 19 shown) in its locking position (this is in FIG. 17 shown), then the area in front of the holding surface 26 moves over the blocking lug 27. In the locking position of the respective closure element 2 then the inclined holding surface 26 abuts against the blocking projection 27, wherein blocked by the inclined holding surface 26 of the blocking projection 27 movement of the respective closure element 2 in the direction of the open position. So that the sealing section 12 and the sealing lip element 18 of the respective closure element 2 sealingly abut the inner line component measuring opening 7 and the outer component measuring opening 9 during a movement of the closure element 2 from the open position into the locking position, a respective locking projection 20a, 20b has a rising suit surface 28 on which adjoins the holding surface 26, with respect to the rising suit surface 28 is formed sloping. Consequently, an operator must apply an increasing force in the rotational movement of the closure element 2 from the open position to the locking position to move the suit surface 28 over the blocking lug 27 away. In other words, for the purpose of fixing the respective closure element 2 to the outer line component 3, when the at least one closure element 2 moves from the open position into the locking position, the rising suit surface 28 moves over the blocking projection 27, wherein the blocking projection 27 moves the associated closure element 2 in the direction of the inner line component 4 urges.

It should be noted that the sealing portion 12 may be formed with at least one sealing lip 14 so that an inserted through the Außenleitungsbauteilmessöffnung 9 in the measuring port 6 sealing portion 12 may be positively connected to the measuring stub 6 such that the holding force of the non-positive connection, the tightness of Measuring point system 1 ensures, without requiring a locking of the closure element 2 is necessary.

Of course, the invention described above is not limited to the described and illustrated embodiments. It will be appreciated that numerous modifications which are obvious to a person skilled in the art according to the intended application can be made to the embodiments shown in the drawing without departing from the scope of the invention. The invention includes everything that is contained in the description and / or shown in the drawing, including what is obvious to those skilled deviating from the specific embodiments.

Claims (11)

Measuring point system (1) with An outer line component (3) which has at least one outer line component measuring opening (9), and An inner line component (4) which is surrounded by the outer line component (3) at least in sections and which has at least one outer side of the inner line component (4) in the direction of the outer line component measuring opening (9) and a connection to the interior (8) of the inner line component (4) having producing measuring stub (6) with an end formed Innenleitungsbauteilmessöffnung (7), wherein at least one shutter member (2) is detachably attached to the outer pipe member (3) and the at least one outer pipe member measuring hole (8) is formed to be closed,
characterized in that
a gap (24) is formed between the inner line component measuring opening (7) and the outer line component (3), wherein the at least one closing element (2) has an elongated body (10) which attaches to the outer line component when the at least one closing element (2) is attached (3) extends at least in sections into the at least one measuring stub (6) and in which both the at least one outer line component measuring opening (9) and the at least one inner line component measuring opening (7) are designed to be sealing. Measuring point system (1) according to claim 1, characterized in that the at least one measuring stub (6) ends at a predetermined distance (25) to the at least one outer line component measuring opening (9). Measuring point system (1) according to claim 1 or 2, characterized in that at a first longitudinal end (11) of the elongated body (10) of the at least one closure element (2), a sealing portion (12) is formed, which in attachment of the at least one Closing element (2) on the outer line component (3) within the at least one Meßstutzens (6) is arranged and on which at least one around the elongated body (10) encircling and projecting from this sealing lip (14) is formed, which is formed elastically deformable. Measuring point system (1) according to claim 3, characterized in that at a second longitudinal end (16) of the elongated body (10) of the at least one closure element (2) in comparison to the elongate body (10) has a larger cross section (17) Head portion (16) for handling the at least one closure element (2) is formed. Measuring point system (1) according to claim 4, characterized in that on the elongate body (10) of the at least one closure element (2) between the sealing portion (12) and the head portion (16) at least one of the elongated body (10) circulating and elastically formed sealing lip element (18) is formed, which when mounting the at least one closure element (2) on the outer line component (3) on the outside of the External line component (3) sealingly closes at least one outer line component measuring opening (9). Measuring point system (1) according to one of the preceding claims, characterized in that the at least one closure element (2) by means of a locking mechanism (19) releasably on the outer line component (3) is fixable, wherein for releasably fixing the at least one closure element (2 ) on the outer line component (3), the at least one closure element (2) from an open position in which the closure element (2) can be pulled out of the at least one outer line component measuring opening (9), into a locking position, in which a movement of the at least one closure element (2 ) is blocked from the at least one Außenbauleitungsbauteilmessöffnung (9) by means of the locking mechanism (19) is rotatable. Measuring point system (1) according to claim 6, characterized in that the locking mechanism (19) at least one locking lug (20a, 20b) formed on the elongated body (10) of the at least one closure element (2), wherein the at least a locking projection (20a, 20b) in the locking position of the at least one closure element (2) is arranged behind the edge (21) of the at least one outer line component measuring opening (9), whereas the at least one locking projection (20a, 20b) in the open position of the at least one closure element (2 ) is arranged in alignment with an enlarged area (22 of the at least one outer line component measuring opening (9). Measuring point system (1) according to claim 7, characterized in that the at least one locking lug (20a, 20b) of the at least one closure element (2) has a rising suit surface (28) and a sloping holding surface adjoining the rising suit surface (28) (26) and in that on the at least one outer line component measuring opening (9) on the inside of the outer line component (3) a blocking lug (27) is formed, wherein in locking position of the at least one closure element (2) the sloping support surface (26) on the blocking lug (27) rests and the blocking lug (27) blocks a movement of the at least one closure element (2) in the direction of the open position. Measuring point system (1) according to claim 8, characterized in that for fixing the at least one closure element (2) on the outer line component (3) upon movement of the at least one closure element (2) from the open position into the locking position, the rising suit surface (28 ) is moved over the blocking projection (27) and the blocking projection (27) thereby urges the at least one closure element (2) in the direction of the inner line component (4). Measuring point system (1) according to one of claims 7 to 9, characterized in that on the elongate body (10) of the at least one closure element (2) has two locking lugs (20a, 20b) formed diametrically to each other on the elongated body ( 10) are formed. Measuring point system (1) according to claim 10, characterized in that at least one Außenleitungsbauteilmessöffnung (9) a stop portion (23) is formed, on which one of the two locking lugs (20a, 20b) in the locking position of the at least one closure element (2).

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