阅读说明：本技术 具有电线馈通的卫生壁式安装连接盒单元 (Sanitary wall-mounted connection box unit with wire feed-through ) 是由 J·布拉特纳 J·肖雷尔 G·莱曼 T·多尔 P·斯蒂芬 C·海茨曼 M·克雷默 于 2021-03-24 设计创作，主要内容包括：本发明涉及一种卫生壁式安装连接盒单元,其包括具有后侧基部部分(2)和套筒部分的盒壳体本体,以及设置在基部部分上的连接器本体(6)。连接器本体包括至少一个电线馈通开口(12),该电线馈通开口从连接器本体的外侧(6a)穿过连接器本体通向卫生部件安装空间。盒壳体本体(1)的基部部分(2)至少在与电线馈通开口相邻的电线连接区域(2a)中由密封弹性材料形成,并且连接器本体(6)的电线馈通开口(12)在外侧上被基部部分的电线连接区域的由密封弹性材料形成的封闭膜(13)覆盖。(The invention relates to a sanitary wall-mounted connection box unit comprising a box housing body with a rear base part (2) and a sleeve part, and a connector body (6) arranged on the base part. The connector body comprises at least one wire feed-through opening (12) leading from the outside (6a) of the connector body through the connector body to the sanitary component mounting space. The base portion (2) of the cartridge housing body (1) is formed of a sealing elastic material at least in the wire connection area (2a) adjacent to the wire feed-through opening, and the wire feed-through opening (12) of the connector body (6) is covered on the outside by a closing film (13) of the wire connection area of the base portion formed of a sealing elastic material.)

1. A sanitary wall-mount connection box unit comprising:

-a cartridge housing body (1) having a rear side base portion (2) and a sleeve portion (3) projecting forward from the base portion, the sleeve portion peripherally surrounding a sanitary component mounting space (4) accessible via an open front end face (5) of the sleeve portion, and

-a connector body (6) provided on the base part of the cartridge housing body, the connector body comprising a sanitary component connection contour (7) facing the sanitary component mounting space, a fluid line connection interface structure (9) accessible on an outside (8) of the cartridge housing body, a fluid conduit structure (10) for fluidly connecting the fluid line connection interface structure to the sanitary component connection contour, and at least one electrical wire feed-through opening (12) leading from an outside (6a) of the connector body through the connector body to the sanitary component mounting space,

it is characterized in that the preparation method is characterized in that,

-the base portion (2) of the cartridge housing body (1) is made of a sealing elastic material at least in a wire connection area (2a) adjacent to the wire feed-through opening of the connector body, and

-the wire feed-through opening (12) of the connector body (6) is covered on the outside by a closing membrane (13) made of the sealing elastic material of the wire feed-through area of the base part (2).

2. A sanitary wall-mounted connection box unit according to claim 1, further characterized by comprising electric wires (15), said electric wires (15) being fed through a membrane aperture (13a) formed in said closure membrane, wherein said sealing elastic material of said closure membrane is sealingly placed on the edge of said membrane aperture, pressing radially inwards against said electric wires.

3. Sanitary wall-mounted connection box unit according to claim 1 or 2, further characterized in that the connector body has an annular or cylindrical shape and the wire feed-through opening is in radial direction or with a radial main direction component (H)_R) Extends peripherally through the connector body.

4. A sanitary wall-mount connection box unit as claimed in claim 3,

-the fluidline connection interface structure comprises a plurality of fluidline connection interfaces (9a, 9b, 9c, 9d) provided on an outer peripheral side on the connector body, and the fluid conduit structure comprises a plurality of associated fluid conduits (10a, 10b, 10c, 10d) between respective fluidline connection interfaces and the sanitary component connection profiles, and

-the wire feed-through opening is peripherally arranged between two of the fluid conduits, or the connector body comprises a plurality of wire feed-through openings, wherein at least one of the openings is arranged between two of the fluid conduits.

5. Sanitary wall-mounted connection box unit according to claim 4, further characterized in that the base portion of the box housing body has a tube insertion opening (14) in the shape of an external blind hole in the sealing elastic material in the wire connection region, wherein the tube insertion opening overlaps the wire feed-through opening of the connector body in the longitudinal direction, and wherein the closure film forms a bottom region of the tube insertion opening.

6. A sanitary wall-mounted connection box unit as claimed in claim 5, further characterized in that said tube insertion opening is coaxial with the wire feed-through opening of the connector body.

7. A sanitary wall-mountable connection box unit according to claim 5 or 6, further characterized by a tube retaining ridge structure (17), said tube retaining ridge structure (17) being made of a sealing elastic material and being formed on the peripheral edge (14a) of the tube insertion opening to protrude radially inwards.

8. A sanitary wall-mounted connection box unit according to any one of claims 1 to 7, further characterized by comprising a wire receiving tube (18) arranged for receiving an electric wire and inserted with a box-side tube end (18a) into the tube insertion opening.

9. A sanitary wall-mounted connection box unit according to any one of claims 1 to 8, further characterized in that,

-the connector body is composed of a synthetic or metallic material having a greater stiffness than the sealing elastic material of the wire feed-through region of the base part, and/or

-the sealing elastomer material of the wire feed-through area of the base part is a synthetic foam material, preferably a thermoplastic particle foam material.

10. A sanitary wall-mounted connection box unit as claimed in any one of claims 1 to 9, further characterized in that the base portion is generally made of synthetic foam material and the connector body is embedded in the synthetic foam material of the base portion.

Technical Field

The invention relates to a sanitary wall-mounted connection box unit, comprising: a cartridge housing body having a rear side base portion and a sleeve portion projecting forwardly from the base portion; and a connector body provided on the base portion of the cartridge case body. The sleeve portion circumferentially surrounds a sanitary component mounting space, which is accessible via the open front end face of the sleeve portion. The connector body comprises a sanitary component connection contour facing the sanitary component mounting space, a fluidline connection interface structure accessible on an outside of the cartridge housing body, a fluid conduit structure for fluid connection of the fluidline connection interface structure to the sanitary component connection contour, and at least one wire feed-through opening from the outside of the connector body through the connector body to the sanitary component mounting space.

Background

Such and similar connection box units are commonly used for connecting sanitary components, such as water outlet fittings for wash basins, bathtubs, showers or kitchen sinks, or sanitary thermostatic devices, mixers and/or shut-off valve units installed upstream of such fittings, to water conduit connections previously installed in buildings. In this context, a typical is a particularly flush-mounted design, wherein the wall-mounted connection box unit is mounted in the relevant building wall such that it ends up on the front side as flush as possible with the finished building wall surface, for example a plastered wall surface or a tiled wall surface. It will be appreciated that in this case the building wall may be a more narrowly defined vertical building wall or a bottom or top wall or surface of a building or room, such as a shower stall, bath, toilet, kitchen or the like.

The fluidline connection interface structure generally comprises one or more connection interfaces, particularly in the form of corresponding pipe connection ports, for coupling to corresponding pipe connection ports in a building, for example for cold water, hot water or mixed water mixed with cold and hot water. The sanitary component connection profile of the connector body is configured to cooperate with a corresponding connection profile of a sanitary component to be coupled thereto, such as a mixing valve unit and/or a shut-off valve unit or a water outlet fitting. The fluid conduit structure ensures the required fluid connection between the fluid line connection interface structure on the outside of the cassette and the sanitary component connection contour on the inside of the cassette, and for this purpose there are respectively one or more fluid conduits which connect the respective outside connection interface to the sanitary component connection contour in the sanitary component installation space.

Background

The connection box unit is inserted into a building wall opening with its rear side or rear side bottom at the front, or placed on a building wall, for example a wall created in a dry construction, wherein the required fluid connection is created between the connection piece in the building and the connection interface structure of the connector body. After the wall is finished, the relevant sanitary component can then be introduced into the mounting space of the cartridge housing body via the open front face of the cartridge housing body and coupled to the matching connection contour of the connector body.

The electric wire feed-through opening is used for leading an electric connection wire from the outside through the connector body for electric connection of a mounting component introduced into the sanitary component mounting space and having an electric function. The mounting component can in particular be a sanitary component with an additional electrical function, for example a sanitary valve with electrical actuation or the like, or an electrical component without a fluid-conducting function, for example an electrical sensor for measuring temperature or flow or the like. The electrical line may be, for example, an electrical supply line via which the relevant sanitary component is supplied with electrical energy, and/or may be an electrical signal connection via which, for example, sensor signals, control signals, etc., are transmitted. The term electrical wire is to be understood here in a general sense as any wiring electrical connection, which in particular comprises any conventional wiring arrangement in the form of one or more cables and/or uncoated electrical wires.

Feed-throughs for electrical lines through the housing wall of a cartridge housing body of a sanitary wall-mounted connection cartridge unit are known in various forms, wherein a fluid-tight design is often desired. For this purpose, use is usually made of, for example, a fluid-tight connection sleeve, see publication DE102007002235a 1. Patent publication DE102009012838B3 discloses a measure to design a watertight cable feed-through between a main housing part and a secondary housing part, wherein the sanitary fitting part is accommodated in the main housing part which is not completely watertight and the voltage source is accommodated in the watertight secondary housing part.

Publication DE102017127151a1 discloses a sanitary wall-mounted connection box unit of the type mentioned at the outset. The known cable feed-throughs through the housing wall of the cartridge housing body are considered disadvantageous here because the cartridge housing body lacks liquid tightness with respect to the external environment or because of the expense of screwing the cable watertight onto the housing wall, and as a remedy it is proposed that one of the fluid conduits of the fluid conduit structure is not used as a fluid guide conduit between the fluid line connection interface structure on the outside of the cartridge housing body and the sanitary component connection contour in the sanitary component installation space, but as a wire feed-through opening, which is different from its original purpose. An additional seal specifically designed for this purpose surrounds the feed-through cable and is intended to seal the fluid duct. In this embodiment, the at least one fluid conduit of the fluid conduit structure is thus no longer available for guiding fluid.

Disclosure of Invention

The invention is based on the technical problem of providing a sanitary wall-mountable connection box unit of the type mentioned at the outset which, in particular, offers functional advantages and/or advantages with regard to the feed-through of electrical lines and/or with regard to the outlay on manufacture and/or installation in comparison with the abovementioned prior art.

The present invention solves the problem, inter alia, of providing a sanitary wall-mountable connection box unit having the features of claim 1, advantageous developments of the invention being specified in the dependent claims, the wording of which is hereby incorporated by reference as part of the description. This in particular also includes all embodiments of the invention resulting from combinations of features defined by the dependent references in the dependent claims.

In the case of the connection box unit according to the present invention, the base portion of the box case body is made of a sealing elastic material at least in the electric wire connection region adjacent to the electric wire feed-through opening of the connector body, and the electric wire feed-through opening of the connector body is covered on the outside by the closing film made of the sealing elastic material of the electric wire feed-through region of the base portion.

This measure advantageously will provide a preferably fluid-tight wire feed-through in combination with a base part of the cartridge housing body, which base part is made of a sealing elastic material at least in its wire connection region adjacent to the wire feed-through opening of the connector body, which base part is advantageous in terms of function and manufacturing/installation costs. The fluidline connection interface structure can remain unaffected by the electrical feedthrough. The sealing elastic material of the base portion in its wire connection region and possibly also in other regions of the base portion (if the base portion is also formed there or as a whole from a sealing elastic material) can be used as desired for other intended purposes. The closing film made of a sealing elastic material reliably covers the wire feed-through opening of the connector body. In order to introduce the electrical line into the electrical line feed-through opening of the connector body, the sealing elastic material of the closing membrane can be suitably penetrated with little effort, wherein the closing membrane is furthermore able to continue to perform its covering and closing function.

In a development of the invention, the connection box unit comprises an electrical line which is fed through a membrane aperture formed in the closing membrane, wherein the sealing elastic material of the closing membrane sealingly bears against an edge of the membrane aperture, thereby pressing the electrical line radially inwards. A reliable fluid seal for the feed-through wires can thereby be obtained at relatively little expense, without the need for a separate seal dedicated to this purpose. In alternative embodiments, such a separate seal may be used, or a feed-through of the wire may be formed without fluid sealing.

In a development of the invention, the connector body has an annular or cylindrical shape and the wire feed-through opening extends through the connector body in a radial direction or on the outer circumference with a radial main direction component. This is a configuration of the connector body and the power supply option of the wires that is advantageous for many applications. The main directional component here generally means that the longitudinal axis of the line feed-through opening extends with a large radial directional component and, conversely, a small directional component perpendicular thereto (i.e. in the circumferential/axial direction). The annular/cylindrical shape of the connector body may in general be of any cross-section, in particular circular, oval or polygonal. It may be ring/cylindrical shaped, closed or open at the periphery. In alternative embodiments, the connector body has a different shape and/or the wire feed-through opening extends through the connector body with an axial and/or peripheral main direction component.

In a refinement of the invention, the fluidline connection interface structure includes a plurality of fluidline connection interfaces disposed on an outer peripheral side of the connector body, and the fluid conduit structure includes a plurality of associated fluid conduits between respective fluidline connection interfaces and the sanitary component connection profiles. The wire feed-through opening is disposed peripherally between two of the fluid conduit structures, or the connector body comprises a plurality of wire feed-through openings, wherein at least one of said openings is disposed between two of the fluid conduit structures.

In an advantageous configuration, this configuration also allows a relatively compact constructional form of the connector body, which thus provides the respectively required fluid line connection and fluid feed-through and one or more required electrical line feed-through. The line feed-throughs may for example be arranged in an alternating manner with the fluid feed-throughs, i.e. with the fluid ducts, in the circumferential direction; alternatively, the fluid conduits and the wire feedthroughs may be arranged in a different order in the circumferential direction, e.g. only the fluid conduits on one half of the circumference and only one or more wire feedthroughs on the other half of the circumference.

In a refinement of the invention, the base portion of the cartridge housing body has a tube insertion opening in the shape of an external blind hole in the sealing elastic material in the wire connection region, wherein the tube insertion opening overlaps the wire feed-through opening of the connector body in the longitudinal direction, and the closing film forms a bottom region of the tube insertion opening.

At less expense, this creates the following possibilities: the tube can be inserted from the outside into the sealing elastic material in the electric wire connection region of the base portion of the cartridge case body, and can be held on the material. Such a tube may be used for different purposes, e.g. for guiding electrical wires and/or fluid and/or light signal wires or some other light wires, as desired. In the case of a plurality of wire feed-through openings, such a tube insertion opening can be assigned in each case only to one of the wire feed-through openings or to a plurality of and even all of the wire feed-through openings. In an alternative embodiment, such a tube insertion opening is not formed on the base portion of the cartridge housing body.

In a refinement of the invention, the tube insertion opening is coaxial with the wire feed-through opening of the connector body, i.e. has a coinciding longitudinal axis. This is the optimum orientation of the tube insertion opening for many applications, wherein the tube insertion opening can have an opening diameter that is larger or smaller than or the same size as the associated wire feed-through opening of the connector body, as desired. In an alternative embodiment, the tube insertion opening is arranged, for example, with a longitudinal axis oriented obliquely with respect to the longitudinal axis of the associated line feed-through opening.

In a refinement of the present invention, the connection box unit includes a tube retaining ridge structure made of a sealing elastic material formed on an outer peripheral edge of the tube insertion opening to project radially inward. The tube retaining ridge structure may advantageously assist in retaining a tube inserted into the tube insertion opening to ensure that it does not come out accidentally. For this purpose, the sealing elastic material of the tube retaining ridge structure may be radially pressed against the inserted tube and may fix it against axial movement, e.g. by means of a frictional engagement. The tube retaining ridge structure may comprise, for example, one or more axially spaced retaining ridges that extend continuously or in an interrupted manner along the outer circumference. Alternatively, the tube is kept inserted without such ridge structures, or other conventional tube holding devices are provided, such as by using threaded connections, tube clamps, etc.

In a development of the invention, the connection box unit comprises a wire receiving tube which is provided for receiving the electric wire and is inserted with a box-side tube end into the tube insertion opening. This is an embodiment of a tube inserted into the tube insertion opening, which facilitates feed-through of the electric wire. In particular, the wire receiving tube may be a hollow tube as is commonly used in electrical installation technology and is contemplated for use with feed-through cables or other electrical wires. In an alternative embodiment, a tube only for the purpose of fluid guidance may be inserted into the tube insertion opening in order to feed through the electric wire not only using the electric wire feed-through opening but also additionally for feeding through the fluid, wherein in this case the electric wire is supplied in the vicinity of or outside the tube of the electric wire feed-through opening of the connector body.

In a development of the invention, the connector body is composed of a synthetic or metallic material which has a greater rigidity than the sealing elastic material of the wire feed-through region of the base part. This choice of material is advantageous in practice for many applications. For example, as in many conventional applications, the connector body may be constructed of brass or another metallic material used in sanitary technology.

In a development of the invention, the sealing elastomer material of the wire feed-through region of the base part is a synthetic foam material, which may in particular be a thermoplastic, granular foam material, alternatively another conventional synthetic foam material. This is an advantageous choice of material from the manufacturing and mounting aspects and also with regard to the functional properties required for the wire feed-through region of the base portion of the cartridge housing body. The material may be, for example, a polypropylene foam material, but may also be a foam material made of another plastic material having the desired function of sealing resilience. In an alternative embodiment, the sealing elastomer is not a foam material, but for example a rubber material.

In a refinement of the invention, the base part is made of synthetic foam material as a whole, and the connector body is embedded in the synthetic foam material of the base part. This is an embodiment of the integration of the base portion of the cartridge housing body and the connector body to the base portion that is advantageous for many applications. Embedding the connector body in the synthetic foam material of the base part holds the connector body integrally and securely in the base part and is a connection of the connector body with the base part, which is advantageous in terms of manufacturing and mounting.

The connection box unit according to the invention is suitable as a method aspect of the invention for a corresponding mounting method. According to the method, the connection box unit is first attached at the installation site, i.e. mounted on or in the relevant building wall, including forming the desired fluid connection, and the relevant sanitary components are introduced into the installation space, unless already preassembled there. The closing membrane is subsequently opened, for example by puncturing with a puncturing tool. Then, the wire is fed through the closing film of the connector body and the wire feed-through opening. Here, if a relevant thread receiving tube is provided, this thread receiving tube is also inserted into the tube insertion opening of the base part of the cartridge housing body, wherein, depending on the application, the thread can be fed through the tube and/or the closing membrane and the thread feed-through opening before or after the tube is inserted into the tube insertion opening.

Drawings

Advantageous embodiments of the invention are shown in the figures. These and other embodiments of the invention are described in more detail below. In the drawings:

figure 1 shows a perspective exploded view of the main components of an exemplary embodiment of a sanitary wall-mount connection box unit with a box housing body and a connector body,

figure 2 shows a rearward cross-sectional view through the connector body and the base portion of the cartridge housing body of a first variant embodiment of the connection box unit of figure 1,

fig. 3 shows a top view from the front of a second variant embodiment of the connection box unit of fig. 1 in a partially cut-away illustration to show the electrical wires in the wire guide with the hollow tube in an uninserted position, and

fig. 4 shows the view of fig. 3 with an empty tube inserted.

Detailed Description

The sanitary wall-mounted connection box unit shown in the figures with reference to an exemplary embodiment comprises a box housing body 1 with a rear side base portion 2 and a sleeve portion 3 protruding forward from the base portion 2, and a connector body 6 provided on the base portion 2 of the box housing body 1. The sleeve part 3 surrounds peripherally a sanitary component mounting space 4, which is accessible via an open front end face 5 of the sleeve part 3. The connector body 6 comprises a sanitary component connection contour 7 facing the sanitary component installation space 4, a fluid line connection interface structure 9 accessible on the outside 8 of the cartridge housing body 1, and a fluid conduit structure 10. The fluid conduit structure 10 ensures the required fluid connection of the fluid line connection interface structure 9 to the sanitary component connection profile 7.

Furthermore, the connector body 6 comprises at least one electrical wire feed-through opening 12 leading from the outer side 6a of the connector body 6 through the connector body 6 to the sanitary component mounting space 4 on the inner side 6b of the connector body 6, on which side the fluid line connection interface structure 9 is also located. The base portion 2 of the cartridge case body 1 is made of a sealing elastic material at least in the wire connection region 2a adjacent to the wire feed-through opening 12 of the connector body 6. The wire feed-through opening 12 of the connector body 6 is covered on the outside by a closing film 13 of sealing elastic material of the wire feed-through area 2a of the base portion 2, as can be seen in particular from fig. 2 to 4.

In the example shown, there are four wire feed-through openings 12, each extending from the outer side 6a of the connector body 6 to the inner side 6b thereof. The respective wire feed-through opening 12 can be used, for example, for feeding through a cable or another wire or another elongate element, for which purpose the closing membrane 13 is then suitably opened. If the wire feed-through opening 12 in the connector body 6 is not required for this purpose, it remains unoccupied and is covered by the closing membrane 13.

In a corresponding supplementary embodiment, as shown in fig. 3 and 4, the sanitary wall-mounted connection box unit comprises an electric wire 15 fed through a membrane aperture 13a formed in the closing membrane 13, wherein the sealing elastic material of the closing membrane 13 sealingly bears against an edge of the membrane aperture 13a, radially inwardly pressing against the electric wire 15. The feed-through of the wires 15 through the connector body 6 can thus be fluid-tightly sealed without the need for a separate seal. For this purpose, the closing membrane 13 is opened in particular to such an extent that a membrane aperture 13a is provided, so that an electric wire 15 can be inserted through said opening, which wire pushes the sealing elastic membrane material slightly radially outwards, so that said membrane material can then be brought tightly against the outer periphery of the electric wire 15.

Fig. 3 and 4 show a connection box unit with a sanitary component 22 of a conventional type which is introduced into the installation space 4 via the open front end face 5 of the sleeve portion 3 and which can be, for example, a mixing valve assembly, such as a thermostatic valve assembly, and/or a shut-off valve assembly with one or more mixing valves and/or shut-off valves, and which can be seen in the cut-away region in fig. 3 and 4. The sanitary component 22 is adjoined by a corresponding connection contour with the connection contour 7 of the connector body 6, so that the inlet and outlet connections of the sanitary component 22 are in a desired manner in fluid connection with the fluid conduit structure 10 of the connector body 6. The sanitary component 22 has one or more elements which are electrically operated and/or which receive and/or output electrical or data signals, for example valve servomotors and/or valve position sensors and/or temperature sensors and/or flow rate sensors.

In a corresponding embodiment, as in the example shown, the connector body 6 has an annular shape, in an alternative embodiment a cylindrical shape, or another shape. The wire feed-through openings 12 extend radially on the outer periphery through the connector body 6 or, as in the example shown, with a radial main direction component H_RExtending, i.e. passing the wire through, the longitudinal axis L of the opening 12_LDirection component H of_RAt a central point Z relative to the annular connector body 6_AIs greater than the component M of the remaining direction perpendicular thereto in the radial direction_RAs shown in fig. 3. In the example shown, the annular shape of the connector body 6 is circular in cross-section; alternatively, it may be, for example, elliptical or polygonal. In the example shown, the annular shape of the connector body 6 is closed on the outer periphery; alternatively, it may extend over an outer peripheral angle of less than 360 °Is open annularly.

In a corresponding embodiment, the fluidline connection interface structure 9 comprises a plurality of fluidline connection interfaces disposed on an outer peripheral side of the connector body 6, and the fluid conduit structure 10 comprises a plurality of associated fluid conduits between respective fluidline connection interfaces and sanitary component connection profiles. In the example shown, the fluid line connection interface arrangement 9 comprises four connection interfaces 9a, 9b, 9c, 9d, for example in the form of four connection ports, which are formed on the outside 6a of the connector body 6, in the example shown in particular on the outer circumferential side of the connector body, offset by an outer circumferential angular distance of 90 ° in each case, and four associated fluid conduits 10a, 10b, 10c, 10d, which extend, for example, as shown in the radial direction of the annular connector body 6. The wire feed-through opening 12 is provided on the outer periphery, i.e., in the outer peripheral direction of the connector body 6, between two of the fluid tubes 10a, 10b, 10c, 10 d. In particular, the connector body 6 in the example shown comprises a plurality of wire feed-through openings 12, for example in particular four, wherein at least one of said openings is provided between two of the fluid conduits, for example in particular all four alternating with four fluid conduits 10a, 10b, 10c, 10 d.

In a corresponding embodiment, as in the example shown, the base portion 2 of the cartridge housing body 1 has, in the wire connection region 2a, a tube insertion opening 14 in the shape of an external blind hole in the sealing elastic material, wherein the tube insertion opening 14 overlaps in the longitudinal direction with the wire feed-through opening 12 of the connector body 6, and the closing film 13 forms a bottom region of the tube insertion opening 14. As in the example shown, the tube insertion opening 14 is preferably coaxial with the wire feed-through opening 12 of the connector body 6; alternatively, it may be arranged obliquely or parallel offset with respect to the wire feed-through opening.

In a corresponding implementation, as in the example shown, the coaxially arranged tube insertion opening 14 has a diameter which is larger than or at least the same size as the wire feed-through opening 12, so that the wire feed-through opening 12 completely overlaps the tube insertion opening 14 in the longitudinal direction. In an alternative embodiment, the overlap may also be only partial, it is often advantageous if the overlap has such dimensions that the wires 15 can be guided straight in the overlap region without kinks.

In an advantageous embodiment, the connection box unit includes a tube retaining ridge structure 17 made of a sealing elastic material and formed on the outer peripheral edge 14b of the tube insertion opening 14 to project radially inward. Fig. 3 and 4 show corresponding embodiments in which the respective tube retaining ridge structure 17 comprises a separate retaining ridge 17 a. In an alternative implementation, the tube retaining ridge structure 17 may comprise a plurality of tube retaining ridges, for example, axially spaced from one another. In the illustrated example, the retaining ridge 17a extends continuously on the outer peripheral side; in alternative implementations, the respective retaining ridge 17a may extend in the axial direction and in the circumferential direction in an interrupted manner on the circumferential side and/or in the axial direction or in a combined manner. Fig. 2 shows an embodiment without such a tube retaining ridge structure. However, even in this case, when necessary, the inserted pipe may be fixed against accidental coming out, for example, by making the pipe have an outer diameter slightly larger than the inner diameter of the pipe insertion port opening 14, so that the sealing elastic material of the edge of the pipe insertion port opening 14 is pressed radially inward against the outside of the inserted pipe, and fixing the inserted pipe by means of frictional engagement.

In an advantageous embodiment, as in the example shown, the connection box unit comprises a wire receiving tube 18 which is provided for receiving an electric wire and is inserted with a box-side tube end 18a into the tube insertion opening 14. In particular, the tube here may be an empty tube conceived for feeding through a cable or other electrical line. Fig. 3 shows the situation in which the tube 18 has not yet been inserted with its tube end 18a into the tube insertion opening 14, so that the retaining ridge 17a can still be easily seen. Fig. 4 shows the condition of completed installation, in which the pipe end 18a is fully inserted into the pipe-inserting opening 14. The tube 18 is held in a fixed manner in the tube insertion opening 14 with its tube end 18a by the tube retaining ridge structure 17, preventing it from being accidentally dislodged. For this purpose, the sealing elastic material of the tube holding ridge structure 17 abuts radially on the outside against the inserted tube end 18a and secures the inserted tube end against axial removal, for example mainly by frictional engagement.

In a corresponding embodiment, the connector body 6 is composed of a synthetic material or a metallic material having a greater rigidity than the sealing elastic material of the wire feed-through region 2a of the base part 2, for example a brass material or another metallic material.

In a corresponding embodiment, the sealing elastic material of the wire feed-through area 2a of the base part 2 is a synthetic foam material. Preferably a thermoplastic particle foam material having the required sealing resilience function, such as a polypropylene foam material.

In an advantageous embodiment, as realized in the example shown, the base portion 2 of the cartridge housing body 1 is generally made of synthetic foam material, and the connector body 6 is embedded in the synthetic foam material of the base portion 2. In particular, in the example described here the connector body 6 is surrounded on the outer circumference side and on the rear side and in the edge region of the front side by the adjacent synthetic foam material of the base part 2 with contact points. This ensures a reliable seal between the connector body 6 and the base portion 2 or the cartridge housing body 1 in this region. In the exploded view of fig. 1, the connector body 6 is shown removed from its embedded cartridge housing body 1 so that its outline can be more clearly seen.

Furthermore, as shown, the base part 2 or the cartridge housing body 1 may be manufactured using a synthetic foam material or generally a sealing elastic material to form one or more horizontal receiving openings 19 in the form of corresponding blind holes in said material on the outer periphery of the base part 2, into which conventional circular levels or the like may be inserted as an alignment aid for mounting said connection cartridge unit.

In a corresponding embodiment, the at least one connection structural element 16 is embedded in the synthetic foam material of the base portion 2 of the cartridge housing body 1, as in the example shown. The connecting structural element 16 has a connecting structure cooperating with a connecting body 21 by means of which the functional surface body 20 can be held on the base part 2, said functional surface body providing a functional surface radially outside the sleeve part 3. The functional surface can be used in particular as a fastening and/or sealing surface in order to fasten the box housing body 1 to a wall surface of a building and/or to seal the box housing body with respect to a wall surface of a building.

In the embodiment shown, in particular four such connecting structural elements 16 are embedded in the synthetic foam material of the base part 2, for example, as shown in the figure, which in this example are offset by 90 ° relative to one another in the peripheral angular direction in the corner regions of the square base part 2 in each case. Each of said connection structure elements 16 is in the form of a sleeve element with a bolt receiving opening and extends continuously through the base portion 2 between the front side and the rear side of the base portion 2. In a suitable manner with respect thereto, the respective connecting body 21 can be realized as a connecting bolt, which can be inserted into the bolt receiving opening and can be fastened, preferably releasably fastened, therein. In alternative embodiments, only one, two, three or more than four such connecting structural elements 16 are embedded in the synthetic foam material of the base part 2, and/or one or more such connecting structural elements 16 are arranged in a different distribution or in other regions of the base part 2, or the connecting box unit is formed without such connecting structural elements.

As is clear from the exemplary embodiments shown and explained further above, the invention provides a wall-mounted connection box unit which offers advantages in particular with regard to the supply of electrical lines from outside the connection box unit into the interior of the box housing body and in particular into the region of the sanitary component mounting space or to electrical functional components arranged there.