Fastening assembly comprising a fixing plate and a gas shut-off valve

Abstract

Fastening arrangement (12) comprising a gas shut-off valve (3) and a fixing plate (13) for fixing to the gas shut-off valve (3) by means of a predetermined number of detachable connecting elements (4), wherein the gas shut-off valve (3) is designed with connecting element receptacles (5) corresponding to the number of detachable connecting elements (4), and wherein the fixing plate (13) is designed with a base plate (14) with passage openings (15) for the connecting elements (4), wherein more passage openings (15) than connecting element receptacles (5) are provided or at least a part of the passage openings (15) cannot be brought into overlap with the connecting element receptacles (5).

Description

[0001] The invention relates to a fastening arrangement comprising a fixing plate and a gas shut-off valve. Such a fastening arrangement is particularly intended for attaching a gas shut-off valve to different versions of a combustion chamber door of a burner in a heating appliance.

[0002] Gas shut-off valves, also known as gas fittings, are used in heating appliances to regulate the supply of fuel gas to the burner, ensuring that a stable flame is ignited and maintained in the burner using a predetermined fuel gas-air mixture. To achieve the most protected placement of the gas shut-off valve and / or a compact design for the heating appliance, the gas shut-off valve should ideally be housed within the appliance casing in a space-saving manner. However, the internal design of heating appliances varies considerably, which may impose different restrictions on the placement of the gas shut-off valve.

[0003] Furthermore, a variety of different gas shut-off valves are available that would (functionally) be suitable for use with a heating appliance, but which differ (significantly) from one another in terms of their external contour and / or their mounting options in the housing and / or are limited in their suitability. One such gas valve is shown, for example, in CN 211 145 498 U.

[0004] Therefore, there is a desire to become more flexible in the design of the internal structure of the heating unit's housing and, if necessary, to further increase its compactness.

[0005] Based on this, the object of the invention is to at least partially solve the problems described with reference to the prior art. In particular, it aims to create a way in which different gas shut-off valves can be combined with different heating appliances, so that a compact design and / or simple installation or manual adjustment of the gas shut-off valve is always possible.

[0006] This problem is solved by the features of the independent claims. Further advantageous embodiments of the invention are specified in the dependent claims. It should be noted that the features listed individually in the claims can be combined with one another in any technologically meaningful way and define further embodiments of the invention. In addition, the features specified in the claims are further specified and explained in the description, which also presents further preferred embodiments of the invention.

[0007] A fastening arrangement comprising a fixing plate and a gas shut-off valve contributes to solving this task. The fixing plate is designed for attachment to the gas shut-off valve by means of a predetermined number of detachable connecting elements. Furthermore, the gas shut-off valve is designed with connecting element receptacles corresponding to the number of detachable connecting elements. The fixing plate is designed with a base plate with through-holes for the connecting elements, wherein more through-holes than connecting element receptacles are provided and / or at least some of the through-holes cannot be aligned with the connecting element receptacles.

[0008] The mounting arrangement comprises a gas shut-off valve, which is to be permanently attached to the heating appliance, particularly inside the housing and outside the combustion chamber of the heating appliance, by means of a predetermined number of detachable (identical or similar) connecting elements. The number of connecting element receptacles and the number of connecting elements are identical. Furthermore, a fixing plate is provided, which may be designed as an adapter or intermediate piece, so that the gas shut-off valve can be attached to the fixing plate and thus mounted to the heating appliance by means of the fixing plate. The fixing plate is attached to the gas shut-off valve with detachable connecting elements, in particular screws, threaded bolts, etc. The connecting elements are connectable to connecting element receptacles, which are specifically designed in the outer contour or...are formed on the valve housing, in particular in the form of (suitable) threaded bores.

[0009] The fixing plate has a base plate with openings for the connecting elements. The base plate is specifically designed so that it can be positioned in front of the connecting element receptacles of the gas shut-off valve. The base plate can be essentially flat. The openings penetrate the base plate and have a (preferably round) contour that allows the connecting elements to be inserted and connected to the connecting element receptacles of the gas shut-off valve. The fixing plate is secured by inserting the connecting elements through the openings into the connecting element receptacles. This securing action clamps the fixing plate onto the gas shut-off valve.

[0010] The mounting plate or base plate has more through-holes than the gas shut-off valve has connection element receptacles. Additionally or alternatively, the through-holes in the base plate are arranged such that some of them cannot be aligned with the connection element receptacles of the gas shut-off valve. In other words, this means, in particular, that after the mounting plate is fastened using the predetermined connection elements, with the connection elements operatively connected to all connection element receptacles of the gas shut-off valve, at least one (or possibly several, in particular two, three, or four) of the through-holes in the base plate remain unused, especially because, in this fixed position, they are not aligned with a connection element receptacle of the gas shut-off valve.An overlap is regularly present when the connecting element provided here can be brought into effective engagement with the connecting element receptacle of the gas shut-off valve through the passage opening.

[0011] This allows the fixing plate to be attached in different orientations relative to the gas shut-off valve. There is no preferred position for fixing the fixing plate to the gas shut-off valve; rather, the mounting arrangement can be configured and / or adapted to suit different applications.

[0012] The openings on the fixing plate can be arranged in a regular pattern and / or a division with a defined angular range. One embodiment of a regular pattern is, for example, a polygon (triangle, square, hexagon, octagon, etc.), where the openings can be located at the vertices and / or edges. If the openings are arranged, for example, on a non-straight, curved, and / or circular line, they have a regular division, i.e., in particular, an approximately equal spacing along the line and / or an approximately equal distance (directly) from each other. It is preferred that the regularity applies to all openings. It is possible for identical and / or different patterns / divisions to be provided, in particular arranged adjacent to each other, concentrically to each other, and / or parallel to each other.The pattern and / or division allows the fixing plate to be positioned in different overlap positions with the connecting element receptacles of the gas shut-off valve.

[0013] The openings can form a circle or be arranged along an approximately circular line. It is preferred that this line has a circumferential division of at least 45 degrees. This means, in particular, that the distance (between the centers) of the openings is a maximum of 45 degrees. It is possible for the division to be even smaller, so that each division has an angular segment of only a maximum of 30 degrees, meaning the circle is designed with a division of at least 30 degrees. This allows the different positions that the fixing plate can assume on the gas shut-off valve to be distinguished from one another by rotating the fixing plate and / or the shut-off valve.

[0014] The mounting surfaces of the gas shut-off valve can collectively form a connection plane for the fixing plate. This allows the fixing plate, in particular its (flat) base plate, to rest on the same plane on the gas shut-off valve. The (end faces of the) mounting surfaces of the gas shut-off valve can collectively define or form a support plane for the base plate of the fixing plate. A connection can then be achieved on the gas shut-off valve by means of the mounting elements without the need for spacers and / or a complex shape for the fixing plate.

[0015] The fixing plate can be detachably fixed to the gas shut-off valve using the connecting elements when the passage openings are covered by the connecting element receptacles.

[0016] The gas shut-off valve has a protruding nozzle in the area of ​​the connecting element receptacles. This protruding nozzle is, in particular, the end section of a gas line of the gas shut-off valve, through which the gas is supplied to the combustion chamber. The base plate of the fixing plate has a central area with a recess in which the nozzle can be received. The recess in the base plate is, in particular, many times larger than the through-hole, with typically only a single recess being provided. The recess can be circular and / or encompass a partial circle. The recess can be completely surrounded by the base plate or extend from one side (or possibly two sides) into the central area. The central area of ​​the base plate, in particular, comprises the center of the base plate.

[0017] Preferably, no through-hole is provided in the central area. The through-holes are arranged around the central area or the recess in the base plate.

[0018] The recess in the central area is designed to allow the fitting to pass through it. The recess can, in particular, replicate the outer contour of the fitting, enabling a precise fit. Alternatively, the recess in the central area may not precisely replicate the outer contour of the fitting, but rather approximate it (at least partially), allowing the fitting to pass through. Sealing and / or fitting elements may be provided in the area between the fitting and the recess.

[0019] It is possible for the fixing plate to be attached to the gas shut-off valve in at least two mounting positions, with a second mounting position being offset and / or rotated by a rotation angle of less than 180 degrees from a first mounting position. It is also possible for the fixing plate to be attached to the gas shut-off valve in several offset and / or rotated mounting positions. The offset and / or rotation occurs around an axis of rotation that passes through the gas shut-off valve, preferably through the center of the protruding nozzle. This allows the fixing plate to be rotated around the nozzle and assume different positions. The distribution of the through-holes allows the fixing plate to be attached to the gas shut-off valve at these positions using the same fasteners and fastener receptacles as the gas shut-off valve.

[0020] The fixing plate can have at least three side tabs angled from the base plate, with a central side tab forming a stop surface with further openings and the adjacent side tabs supporting the central side tab.

[0021] The side tabs are all angled or inclined relative to the base plate, particularly at an angle of approximately 90 degrees. Specifically, they all exhibit approximately the same angle of inclination to the base plate and / or extend from the base plate in the same direction (upwards or downwards). A side tab can be designated as "central" if another side tab is adjacent to each of its two lateral ends. The adjacent side tabs are preferably arranged approximately parallel to one another. The adjacent side tabs are in (direct) contact with the central side tab in such a way that increased resistance is achieved with respect to changes in the relative position of the central side tab to the base plate. This support is therefore particularly intended to stiffen this predetermined orientation of the through-openings provided there.

[0022] The additional openings allow the fixing plate to be secured in or on the heating device. The openings in the central side tab preferably have a different orientation than those in the base plate. However, all openings can be identical and / or suitable for the passage of the same fasteners. Preferably, no further openings are provided on the adjacent side tabs.

[0023] The central side flap and / or the adjacent side flaps can be formed in one piece with the base plate.

[0024] Molded and / or integral support elements on the adjacent side tabs can (additionally) stabilize and / or support the central side tab. These support elements project beyond the adjacent side tabs on the side where the adjacent side tabs are abutting the central side tab. For example, the support elements may be angled from the adjacent side tab towards the central side tab. The support elements may have openings corresponding to the through-holes, which (partially) overlap with the respective through-holes of the angled side tab. When the fixing plate is secured to the central side tab with detachable fasteners, the adjacent side tabs are attached to the central side tab while the fixing plate is simultaneously secured.The detachable connecting elements are guided through the openings of the central side flap and the covered openings of the support elements.

[0025] A heating device with a burner and a combustion chamber door also contributes to solving the problem, whereby a gas shut-off valve can be attached to the combustion chamber door using the presented fastening arrangement.

[0026] Regarding the design of the fastening arrangement, full reference can be made to the above explanations and / or the explanations in connection with the figures.

[0027] The mounting assembly can now be attached to the combustion chamber door using the fixing plate. Attachment is possible if detachable connecting elements are guided through the additional openings in the central side panels and fastened to corresponding connecting element receptacles on the combustion chamber door.

[0028] The combustion chamber door is designed such that its connecting element receptacles correspond to the additional openings of the fixing plate. Furthermore, the combustion chamber door is designed so that the entire mounting assembly, comprising the fixing plate and the gas shut-off valve, fits into a designated installation space within the combustion chamber door. Preferably, the mounting position of the gas shut-off valve on the fixing plate can be modified so that the mounting assembly fits into the installation space in at least one of the mounting positions of the gas shut-off valve on the fixing plate.

[0029] The installation space within the heater housing adjacent to the combustion chamber door is designed to allow the gas shut-off valve to be used in at least one suitable mounting position. This means, in particular, that connection elements essential for use in a heater can be attached to the gas shut-off valve. Such connection elements include, for example, a gas restrictor and / or a fuel gas supply line.

[0030] Furthermore, the use of the mounting arrangement for the compact arrangement of different gas shut-off valves on the combustion chamber door of the burner of the heating appliance contributes to solving the problem.

[0031] Regarding the design of the fastening arrangement to be used, full reference can be made to the above explanations and / or the explanations in connection with the figures.

[0032] It is possible to use the mounting assembly with different gas shut-off valves in such a way that the aforementioned conditions are met and the mounting assembly can be positioned within the installation space of the burner door. The differences in the gas shut-off valves relate primarily to the arrangement (pattern) of the connecting element receptacles. The arrangement of the through-holes on the base plate can therefore accommodate several different arrangements of connecting element receptacles with the desired number. Thus, different gas shut-off valves can be used by mounting them in different orientations on the fixing plate, allowing the mounting assembly to be attached to the combustion chamber door and fit within the installation space of the combustion chamber door. The mounting orientation used therefore depends on the given installation space of the combustion chamber door in which the mounting assembly is used.The combustion chamber door can specify different mounting positions that can be used with the mounting arrangement.

[0033] The invention and the technical context are explained in more detail below with reference to four figures. The illustrations are schematic and not intended to demonstrate scale relationships. The explanations given with reference to individual details of the figure can be extracted and freely combined with facts from the preceding description, unless a person skilled in the art necessarily derives otherwise, or such a combination is explicitly excluded. The figure schematically shows: Fig. 1 : a mounting arrangement comprising a gas shut-off valve and a fixing plate, shown in two mounting positions, Fig. 2 : a fixing plate of a fastening arrangement, Fig. 3 : a heating appliance with a burner and a combustion chamber door, wherein a gas shut-off valve is attached to the combustion chamber door by means of a fastening arrangement, comprising a gas shut-off valve and a fixing plate, and Fig. 4 : another type of heating appliance with a gas shut-off valve attached to it.

[0034] Fig. 1 Figure 12 shows a fastening arrangement 12 comprising a gas shut-off valve 3 and a fixing plate 13, which is shown here in two fastening positions 20 rotated by 90°.

[0035] The gas shut-off valve 3 has a connection plane 16 on which four connection element receptacles 5 are located. A central nozzle 17 penetrates the connection plane 16 and is arranged within the four connection element receptacles 5. The nozzle 17 is designed as a tubular nozzle that rises from the connection plane 16. The connection element receptacles 5 do not contact the nozzle 17. Each connection element receptacle 5 is positioned at approximately the same distance from the nozzle 17 on the connection plane 16.

[0036] The fixing plate 13 comprises an approximately square base plate 14. A plurality of through-holes 15 are arranged on the base plate 14. The two illustrated mounting positions 20 are rotated relative to each other by 90 degrees. A mounting position 20 is achieved when each connecting element receptacle 5 overlaps with a through-hole 15. The fixing plate 13 can be moved into one of the mounting positions 20 by rotation. A rotation of the fixing plate 13 to achieve a second mounting position 20 can be offset from a first mounting position 20 if the rotation angle is less than 180 degrees.

[0037] Once a mounting position 20 is reached, the fixing plate 13 can be attached to the connection plane 16 of the gas shut-off valve 3 using the detachable connecting elements 4. For this purpose, the connecting elements 4 are inserted through the through-holes 15 on the base plate 14 of the fixing plate 13 into the connecting element receptacles 5 of the gas shut-off valve 3 and secured in the connecting element receptacles 5. By being secured in the connecting element receptacles 5, the connecting elements 4 press the fixing plate 13 onto the gas shut-off valve 3.

[0038] Fig. 2 This represents a variant embodiment of the fixing plate 13 of a fastening arrangement 12. A central area 18 is arranged in the middle of the base plate 14, which has a recess 19. The recess 19, which is arranged in the central area 18, is rounded and shaped such that the nozzle 17 of the gas shut-off valve (see Fig. 1 ) passes through. The passage openings 15 are arranged around the central area 18. The passage openings 15 form a circle around the central area 18. The passage openings 15 are spaced apart from each other at a defined angular interval on the circle, with a division of at least 45 degrees. The passage openings 15 are arranged on the base plate 14 such that they do not touch the edge of the base plate 14 or the central area 18.

[0039] From the base plate 14 of the fixing plate 13, a central side tab 21 and two adjacent side tabs 22 are angled approximately perpendicularly. The central side tab 21 has two further through-openings 15. In the angled position, the adjacent side tabs 22 are at a right angle to the central side tab 21. The adjacent side tabs 22 each encompass a support element 24 angled perpendicular to them. The support elements 24 project beyond the adjacent side tabs 22 on the side where the adjacent side tabs 22 are adjacent to the central side tab 21. The support element 24 contacts a rear side of the central side tab 21. The central side tab 21, the two adjacent side tabs 22, the two support elements 24, and the base plate 14 form the fixing plate 13 in one piece.

[0040] The central side tab 21 forms a stop surface 23 on a front side where the support element 24 is not located. The stop surface 23 allows the fixing plate 13 to be positioned against another element (of a heating device).

[0041] Fig. 3 Figure 1 represents a heating appliance 1 with a burner 2 and a combustion chamber door 6, wherein a gas shut-off valve 3 is attached to the combustion chamber door 6 by means of a mounting assembly 12, comprising a gas shut-off valve 3 and a fixing plate 13. The combustion chamber door 6 has a recess 25 that allows the mounting assembly 12 to be attached to the combustion chamber door 6. The mounting assembly 12 is attached to the combustion chamber door 6 in such a way that connection elements can be connected to the gas shut-off valve 3, in particular a gas throttle 7 and a fuel gas supply 11. The gas shut-off valve 3 is arranged with the fixing plate 13 at an inlet to a fuel gas channel 8, which opens into a fuel gas-air channel 9. A combustion air supply 10 is arranged on the fuel gas-air channel 9.

[0042] Fig. 4 shows a different heating device 1 with a burner 2 and a combustion chamber door 6 than in Fig. 3 A gas shut-off valve 3 is attached to the combustion chamber door 6 by means of a mounting assembly 12, comprising a gas shut-off valve 3 and a fixing plate 13. The combustion chamber door 6 has a recess 25 that allows the mounting assembly 12 to be attached to the combustion chamber door 6. However, the recess 25 dictates a different orientation for the mounting of the mounting assembly 12. The mounting assembly 12 is oriented differently compared to the illustration in Fig. 3 The mounting assembly 12 is rotated by 90°. It is attached to the combustion chamber door 6 so that connection elements, in particular a gas throttle 7 and a fuel gas supply 11, can be connected to the gas shut-off valve 3. The gas shut-off valve 3 is arranged with the fixing plate 13 at an inlet to a fuel gas channel 8, which opens into a fuel gas-air channel 9. A combustion air supply 10 is arranged on the fuel gas-air channel 9.

[0043] This revealed how the problems described with reference to the state of the art were at least partially solved. In particular, a method was created whereby different gas shut-off valves 3 can be fitted to different combustion chamber doors 6 without having to change the geometry of the combustion chamber door 6 and / or without having to plan and design the combustion chamber door 6 with regard to the gas shut-off valve 3 used. Reference symbol list

[0044] 1 Heater 2 Burner 3 Gas shut-off valve 4 Detachable connecting element 5 Connecting element receptacle 6 Combustion chamber door 7 Gas throttle 8 Fuel gas duct 9 Fuel gas-air duct 10 Fuel air supply 11 Fuel gas supply 12 Mounting arrangement 13 Fixing plate 14 Base plate 15 Through opening 16 Connection plane 17 Spigot 18 Central area 19 Recess 20 Mounting position 21 Central side tab 22 Adjacent side tab 23 Stop surface 24 Support element 25 Installation space

Claims

1. Fastening arrangement (12) comprising a gas shut-off valve (3) and a fixing plate (13) for fixing to the gas shut-off valve (3) by means of a predetermined number of detachable connecting elements (4), wherein the gas shut-off valve (3) is formed with connecting element receptacles (5) corresponding to the number of detachable connecting elements (4), characterized in that the fixing plate (13) is formed with a base plate (14) with through-openings (15) for the connecting elements (4), wherein more through-openings (15) are provided than connecting element receptacles (5) or at least some of the through-openings (15) cannot be brought into overlap with the connecting element receptacles (5).

2. Fastening arrangement (12) according to the preceding claim, characterized in that the passage openings (15) are arranged in a regular pattern and / or a pitch with a fixed angular range on the fixing plate (13).

3. Fastening arrangement (12) according to one of the preceding claims, characterized in that the passage openings (15) form a circle and have a circumferential pitch of at least 45 angular degrees.

4. Fastening arrangement (12) according to one of the preceding claims, characterized in that the connecting element receptacles (5) of the gas shut-off valve (3) together form a connecting plane (16) for the fixing plate (13).

5. Fastening arrangement (12) according to one of the preceding claims, characterized in that the gas shut-off valve (3) has a protruding nozzle (17) in the region of the connecting element receptacles (5), wherein the base plate (14) has a central region (18) with a recess (19) for receiving the nozzle (17).

6. Fastening arrangement (12) according to one of the preceding claims, characterized in thatthe fixing of the fixing plate (13) to the gas shut-off valve (3) can be effected in at least two fixing positions (20), wherein a second fixing position (20) is displaced from a first fixing position (20) by a rotation angle of less than 180 degrees.

7. Fastening arrangement (12) according to one of the preceding claims, characterized in that the fixing plate (13) has at least three side plates (21, 22) angled away from the base plate (14), wherein a central side plate (21) forms a stop surface (23) with further through-openings (15) and the adjacent side plates (22) support the central side plate (21) with support elements (24) attached thereto.

8. Heating device (1) with a burner (2) and a combustion chamber door (6), characterized in that a fastening arrangement (12) with a gas shut-off valve (3) according to one of the preceding claims is fastened to the combustion chamber door (6).

9. Use of a fastening arrangement (12) according to one of the preceding claims 1 to 8 for the compact arrangement of different gas shut-off valves (3) on a combustion chamber door (6) of a burner (2) of a heating device (1).

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