Cable sealing joint block and cable lead-in device

Abstract

A cable seal joint block (16) made of an elastic material has: two opposing first faces (17) facing a first local direction (18) of the cable seal joint block (16); two opposite second faces (19) facing a second local direction (20) of the cable seal block (16); two opposite third faces (21) facing a third local direction (22) of the cable seal block (16) and intended, in the operating position, to face, respectively, two lateral sides (9) of the cable introduction device (1), in which the two second faces (19) of the cable seal block (16) are both planar, parallel to each other and smooth, in which the two third faces (21) face the first local direction (22) of the cable seal block (16) and the two second faces (19) face the second local direction (22) of the cable seal block (16). The two third faces (21) of the cable seal joint block (16) each form a block coupling surface (25) having a plurality of linear grooves (26) and a plurality of ribs (27) parallel to each other and parallel to the second local direction (20), where the block coupling surface (25) or the entire third faces (21) are symmetrical with respect to the first local plane of symmetry (29), and the block coupling surface (25) or the entire third faces (21) are symmetrical with respect to the second local plane of symmetry (29). The first local plane of symmetry (29) is orthogonal to the first local direction (18).

Description

[0001] This invention relates to a cable leadthrough device that can be installed to a wall (e.g., the wall of an electrical cabinet) to guide cables, signal cables, or fluid conduits in an orderly and secure manner at the leadthrough opening, ensuring a desired level of sealing and avoiding the risk of unwanted damage and movement of the cables. The invention also relates to a cable gland block for use with the cable leadthrough device.

[0002] A cable entry device, as known from EP1236256 A1, comprises two frame members that are connectable to each other in a closed position to form a rectangular frame, and that are separable from each other in an open configuration. These two frame members define a plurality of through-seats to accommodate one or more resilient cable sealing joint blocks applied around the cable or conduit, wherein... - When the two frame components are in the open position, the cable sealing joint block and the cable or conduit surrounded by the cable sealing joint block can be placed in or removed from the through seat. - When the two frame components are in the closed position, the cable sealing joint blocks are in close contact with each other and with the frame components, forming a basically waterproof plate together with the frame components, through which the cable surrounded by the cable sealing joint blocks passes.

[0003] It is also known to obtain a first U-shaped or comb-shaped frame component having a base beam, two lateral posts protruding from the base beam, and possibly one or more additional intermediate posts, wherein through seating portions are defined between adjacent posts, allowing cable sealing connector blocks to be temporarily inserted and positioned within the only first frame component.

[0004] It is also known to provide a second frame component that is in the shape of a beam at the initial free ends of the lateral and intermediate columns of the first frame component, to close the through seating portion and press the cable sealing connector block in the closed position.

[0005] It is also known that the second U-shaped or comb-shaped frame component is configured to be substantially mirror-symmetrical with respect to the shape of the first frame component, and can be connected to the first frame component to close the through seat and press the cable sealing connector block in the closed position.

[0006] It is also known to obtain a cable sealing joint block with an outer surface having slots or forming ribs, and a through seat of a frame member with an inner arched surface having slots or forming ribs, to increase the local contact pressure between the through seat and the cable sealing joint block when the cable entry device is in the closed position, and thus increase the sealing performance.

[0007] The cable entry device is secured to the application wall by screwing in, for example, four fastening screws and by means of a special washer between the cable entry device and the wall itself.

[0008] In order to enable fastening screws to be screwed into the application wall (typically made of thin sheet or material unsuitable for tightening screws), it is known to apply special bushings or internally threaded rivets to the application wall.

[0009] Existing cable entry devices still have some drawbacks.

[0010] Cable sealing connectors are typically cubic or parallelepiped in shape, which allows them to be accommodated in a through-seat in multiple different locations and orientations—including unplanned locations and orientations—by flipping up and down and flipping back and forth, which can introduce the risk of leakage.

[0011] To date, the continuity of the sealing barrier cannot be ensured in the interface area between the cable sealing joint block and the through seat, the sealing area between different frame components, and the sealing area between the frame component and the wall.

[0012] It is not convenient to properly position the additional gasket between the cable entry device and the wall.

[0013] Improperly positioned additional washers and / or uneven or excessive tightening of fastening screws may damage the additional washers and compromise the seal of the installed cable entry device.

[0014] The frame components made of synthetic materials by injection molding have flatness tolerances, which are added to the flatness tolerance of the application wall and are not always fully compensated by the elastic deformation of the additional gasket placed between the cable entry device and the application wall.

[0015] Another drawback of the existing technology is that, in order for the fastening screws to be screwed into the application wall, the bushing or internally threaded rivet must have a rivet head or flange that protrudes from the application wall into the interface with the cable entry device, thus interfering with the sealing requirements in that area. Currently, cable entry device installers attempt to compensate for the thickness of the flange or rivet head by inserting an additional sealing or rubber layer with a thickness of approximately 1mm to 2mm, or by tightening the fastening screws to force the rivet head into the plastic material of the cable entry device frame. Neither of these measures can guarantee the intended waterproofing.

[0016] Furthermore, in the prior art, cable sealing joint blocks are mainly guided by shape coupling on two opposite lateral sides and pressed together from top to bottom, but no constraint is imposed on the upper and lower sides of the cable sealing joint in the axial extension direction of the cable or conduit it encapsulates.

[0017] Finally, during the assembly and installation of the cable entry device onto the wall, the additional washers and fastening screws are prone to detaching, falling off, or being lost from the frame components.

[0018] Therefore, the object of the present invention is to provide an improved cable entry device having features that eliminate at least some of the disadvantages of the prior art.

[0019] A specific object of the present invention is to provide a cable sealing connector block and a cable entry device having features that simplify assembly and installation and prevent mispositioning of the cable sealing connector block in the frame component.

[0020] Another specific object of the present invention is to provide a cable introduction device having the feature of reducing the number of components to be assembled and ensuring that they are correctly positioned relative to each other.

[0021] Another specific object of the present invention is to provide a cable sealing connector block and a cable entry device having features that improve the sealing performance of the cable entry device against moisture and water penetration.

[0022] Another specific object of the present invention is to provide a cable entry device having the feature of reducing the risk of excessive compression and damage to the gasket during the assembly and wall mounting of the cable entry device.

[0023] At least part of the objective is achieved by the cable sealing joint block according to claim 1. At least part of the objective is achieved by the cable sealing joint block according to claim 7.

[0024] The dependent claims relate to advantageous and preferred embodiments.

[0025] According to one aspect of the invention, a cable sealing connector block made of an elastic material is intended to be positioned (individually or in groups of said cable sealing connector blocks) in an operating position in one or more receiving seats of a cable entry device, said cable sealing connector block having: - Two opposite first (axial) faces facing the first local direction of the cable sealing joint block, and the two opposite first (axial) faces are intended to face the cable passage direction in the operating position; - Two opposite second surfaces (upper-lower), which face the second local direction of the cable sealing joint block, and which are intended to face the lower and upper sides of the frame of the cable entry device respectively in the operating position; - Two opposite third (lateral) surfaces facing the third local direction of the cable sealing joint block, and the two opposite third (lateral) surfaces are intended to face the two lateral sides of the frame of the cable entry device respectively in the operating position; - A through passageway that runs along a first local direction and is open in both first faces to receive and enclose cables or conduits; - A separation cut that extends from one side of the through channel to only one third surface and is spaced apart from both second surfaces, to allow cables or conduits to be inserted laterally into the through channel; Among them, the first local direction, the second local direction, and the third local direction are orthogonal to each other (each is orthogonal to the other two). In this cable sealing connector block, both second surfaces are flat, parallel to each other, and preferably smooth (the term "smooth" should be understood as smooth to some extent but still ensuring a seal at the contact interface between the two second surfaces; for example, there may be local or very low surface textures, such as a covering layer for markings or alphanumeric codes. Alternatively, the second surfaces of the cable sealing connector block may be textured). In this design, each of the two third surfaces of the cable sealing connector block forms a block coupling surface. This block coupling surface has multiple linear grooves and multiple ribs, which are parallel to each other and parallel to a second local direction. These surfaces are designed to engage the corresponding coupling surfaces of the cable entry device in the operating position, for example, engaging the column coupling surfaces of the cable entry device's posts (e.g., lateral posts and / or intermediate posts (if an intermediate post is provided)). The block coupling surface, and preferably the entire third local surface, is symmetrical with respect to the first local symmetry plane, which is orthogonal to the first local direction.

[0026] Therefore, in the operating position, each cable sealing joint block can be oriented or accommodated in the receiving seat in four different orientations, having the same space-occupying shape in all orientations, or having the same form of engagement and geometric coupling between the block coupling surface and the coupling surface of the cable introduction device (e.g., the column coupling surface), preferably having the same shape of engagement and geometric coupling between the entire third surface and the receiving seat in all orientations.

[0027] In the operating position, the two cutting surfaces of the cable introduction device used to define the separation cut remain in contact with each other without affecting the external shape of the block coupling surface or the third surface.

[0028] According to one aspect of the present invention, a multi-cable entry device includes: A) A rectangular frame, the rectangular frame being formed by a base beam located on the lower side of the frame, a top beam located on the upper side of the frame, and a plurality of columns, the upper side of the frame being opposite to the lower side, the plurality of columns comprising: at least two lateral columns extending from the base beam to the top beam on two opposite lateral sides of the frame, and one or more intermediate columns possibly parallel to the lateral columns and extending from the base beam to the top beam in an intermediate region between two lateral columns. The lateral columns and intermediate columns (if an intermediate column is provided) define multiple through-type receiving seats between them, and these multiple through-type receiving seats pass through in the cable passage direction transverse to the frame plane. The frame is divided into at least a first frame component and a second frame component. The first and second frame components are connectable to each other in the closed position to form a configuration for the cable entry device. Furthermore, the first and second frame components are detachable in the open position, allowing the cable sealing connector block to be inserted into the receiving seat. B) A plurality of cable sealing connector blocks, the plurality of cable sealing connector blocks being made of an elastic material and being positionable in a receiving seat in an operating position, and the plurality of cable sealing connector blocks having: - Two opposite first (axial) faces facing the first local direction of the cable sealing joint block, and the two opposite first (axial) faces are intended to face the cable passage direction in the operating position; - Two opposite second surfaces (upper-lower), which face the second local direction of the cable sealing joint block, and which are intended to face the lower and upper sides of the frame respectively in the operating position; - Two opposite third surfaces (lateral), which face the third local direction of the cable sealing joint block, and which are intended to face the two lateral sides of the frame respectively in the operating position; - A through passageway that runs along a first local direction and is open in both first faces to receive and enclose cables or conduits; - A separation cut that extends from one side of the through channel to only one third surface and is spaced apart from both second surfaces, to allow cables or conduits to be inserted laterally into the through channel; Among them, the first local direction, the second local direction, and the third local direction are orthogonal to each other (each is orthogonal to the other two). In this cable sealing connector block, both second surfaces are flat, parallel to each other, and preferably smooth (the term "smooth" should be understood as smooth to some extent but still ensuring a seal at the contact interface between the two second surfaces; for example, there may be local or very low surface textures, such as a covering layer for markings or alphanumeric codes. Alternatively, the second surfaces of the cable sealing connector block may be textured). In this design, each of the two third surfaces of the cable sealing connector block forms a block coupling surface. This block coupling surface has multiple linear grooves and multiple ribs, which are parallel to each other and parallel to the second local direction. These surfaces are designed to engage the corresponding column coupling surfaces of either the lateral column or the intermediate column (if an intermediate column is provided) at the operating position. The block-coupled surface, and preferably the entire third local surface, is symmetrical with respect to the first local symmetry plane, which is orthogonal to the first local direction. Therefore, in the operating position, each cable sealing joint block can be accommodated in the receiving seat in four different orientations, with the same shape of engagement and geometric coupling between the block coupling surface and the column coupling surface in all orientations, and preferably with the same shape of engagement and geometric coupling between the entire third surface and the receiving seat in all orientations.

[0029] At the operating position, the two cutting surfaces of the separation cut remain in continuous contact with each other without affecting the external shape of the block coupling surface or the third surface.

[0030] The frame is designed to face the mounting side of the application wall and the visible side opposite the mounting side. Therefore, advantageously, in the operating position, the cable entry device allows the cable sealing joint block to face the mounting side and the visible side respectively with each of its two first faces, and the upper and lower sides respectively with each of its two second faces. Until now, installers could easily misjudge the vertical and horizontal orientation of the cable sealing joint block, but due to the forced path of the cable, they never misjudge the direction of the through-channel. The new configuration eliminates any doubts about installation orientation, significantly reducing the risk of mispositioning of the cable sealing joint block, speeding up the assembly of the cable entry device, and ensuring optimal planned sealing in all four orientations involved.

[0031] To better understand the present invention and recognize its advantages, some non-limiting exemplary embodiments will be described below with reference to the accompanying drawings, in which: Figure 1 This is a front perspective view ("visible side") of the frame of the cable entry device according to the embodiment. Figure 2 yes Figure 1 Rear perspective view of the frame (“mounting side”); Figure 3 yes Figure 1 A perspective view of the frame component (“second frame component”) of the frame in the middle, viewed from below; Figure 4 According to the implementation method Figure 1 A front perspective view ("visible side") of the frame component ("first frame component") and the cable sealing joint block. Figure 5 is Figure 4 Rear perspective view ("mounting side") of the frame component ("first frame component"); Figure 6 is an enlarged view and partial cross-sectional view of the details in Figure 5; Figure 7 This is a cross-sectional view of the details in Figure 5; Figure 8 It is a perspective view showing the details of the column coupling surface of the frame according to the implementation method; Figure 9 This is a perspective view showing the details of the mounting surface of the frame with mounting washers according to the embodiment. Figure 10 This is a cross-sectional view of a cable entry device according to an embodiment, wherein the cable sealing joint block and some gaskets are shown in their undeformed shape in a space-defying manner. Figure 11 This is a front view (“visible side”) of a cable entry device according to an embodiment, wherein cable sealing joint blocks that are distinct from each other are indicated by way of example. Figure 12 This is a rear view (“mounting side”) of a cable entry device according to an embodiment, wherein cable sealing joint blocks that are distinct from each other are indicated by way of example. Figure 13 This is a top view of the frame components of the cable introduction device according to the embodiment; Figure 14 This is an exploded perspective view of the cable introduction device according to the embodiment; Figure 15 It shows the installation to the application wall, in accordance with Figure 11 Cable entry device in the cross-sectional plane XV-XV; Figure 16 This is a perspective view of a cable sealing connector block according to an embodiment, which can be used with or form part of a cable entry device according to the invention. Figure 17 A is Figure 16 A top view of the cable sealing joint block in the middle; Figure 17B This is the front view; Figure 17C This is the first side view; Figure 17D It is a bottom view; and Figure 17Dyes Figure 16 Second side view of the cable sealing joint block in the middle; Figure 18 A cable entry device installed to the application wall is shown; Figure 19 It is a cross-sectional view of the block coupling surface and the corresponding column coupling surface of the cable entry device according to the embodiment. Figure 20 A frame of a cable entry device according to another embodiment is shown; Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 The frame of a cable entry device according to even more alternative embodiments is shown.

[0032] Description of cable entry device 1 Referring to the accompanying drawings, a multi-cable entry device 1 (i.e., suitable for obtaining a sealed passage of multiple cables or conduits (not shown) through an application wall 2) includes a rectangular frame 3 formed by: a base beam 4 located on a lower side 5 of the frame 3; an upper beam 6 located on an upper side 7 of the frame 3, the upper side 7 being opposite to the lower side 5; two lateral columns 8 extending from the base beam 4 to the upper beam 6 on two opposite lateral sides 9 of the frame 3; and one or more intermediate columns 10 possibly parallel to the lateral columns 8 and extending from the base beam 4 to the upper beam 6 in an intermediate region between the two lateral columns 8.

[0033] The lateral columns 8 and the intermediate columns 10 (if an intermediate column 10 is provided) define a plurality of through receiving seats 11 in the cable passage direction 12 that is transverse to or orthogonal to the frame plane 13 of the frame 3.

[0034] Frame 3 is at least divided into a first frame component 14 and a second frame component 15, wherein the first frame component 14 and the second frame component 15 are in the closed position ( Figure 1 They can be connected to each other to form the usage configuration of the cable entry device 1, and in the open position ( Figure 14 They can be separated from each other, thus allowing the cable sealing connector 16 to be inserted into the receiving seat 11.

[0035] The cable entry device 1 also includes a plurality of cable sealing joint blocks 16 made of elastic material, the plurality of cable sealing joint blocks 16 being in the operating position ( Figure 4 The cable sealing connector blocks 16 can be positioned in the receiving seat 11, and the plurality of cable sealing connector blocks 16 have: - Two opposite first (axial) surfaces 17, which face the first local direction 18 of the cable sealing joint block 16. Figure 16 The local direction 18 indicated in the middle), and the two opposite first (axial) surfaces 17 are intended to face the cable passage direction 12 in the operating position ( Figure 1 , Figure 4 The cable routing direction shown in Figure 12). - Two opposite second surfaces 19, which face the second local direction 20 of the cable sealing joint block 16, and which are intended to face the lower side 5 and the upper side 7 of the frame 3 respectively in the operating position; - Two opposite third surfaces 21, which face the third local direction 22 of the cable sealing joint block 16, and which are intended to face the two lateral sides 9 of the frame 3 respectively in the operating position; - Through passage 23, which extends along the first local direction 18 and opens into the two first surfaces 17 to receive and enclose cables or conduits; - Separation cut 24, which extends from one side of the through channel 23 to the third face 21, with only one third face and spaced apart from both second faces 19, to allow cables or conduits to be inserted laterally into the through channel 23.

[0036] The first local direction (or axis) 18, the second local direction (or axis) 20 and the third local direction (or axis) 22 are orthogonal to each other (each is orthogonal to the other two).

[0037] Both second surfaces 19 of the cable sealing connector block 16 are planar, parallel to each other, and preferably smooth (the term "smooth" should be understood as smooth to some extent but still ensuring a seal between the two second surfaces 19 at the contact interface; for example, there may be local or very low surface textures, such as a cover layer for markings or alphanumeric codes. Alternatively, the second surfaces 19 of the cable sealing connector block 16 may be textured).

[0038] The two third surfaces 21 of the cable sealing connector block 16 each form a block coupling surface 25 having a plurality of linear grooves 26 and a plurality of ribs 27, the plurality of linear grooves 26 and the plurality of ribs 27 being parallel to each other and parallel to the second local direction 20, the block coupling surface 25 being intended to engage, in the operating position, the corresponding column coupling surface 28 of one of the lateral column 8 and the intermediate column 10 (if an intermediate column 10 is provided).

[0039] The block coupling surface 25, preferably the entire third surface 21, is symmetrical with respect to the first local symmetry plane 29, which is orthogonal to the first local direction 18.

[0040] Therefore, in the operating position, each cable sealing connector block 16 can be accommodated in the receiving seat 11 in four different orientations, with the same shape of engagement and geometric coupling between the block coupling surface 25 and the column coupling surface 28 in all orientations, preferably with the same shape of engagement and geometric coupling between the entire third surface 21 and the receiving seat 11 in all orientations.

[0041] At the operating position, the two cutting surfaces of the separation cut 24 remain in continuous contact with each other without affecting the external shape of the block coupling surface 25 or the third surface 21.

[0042] According to the embodiment, the two opposing surfaces of the separation cut 24 can be substantially smooth and planar, or form stepped or serrated surfaces, but with mutual shape compatibility. Clearly, the elastic material of the cable sealing connector block 16 allows deformation of the opposing surfaces of the separation cut 24.

[0043] According to one embodiment, the cable sealing connector 16 can be manufactured with an initial shape in which the two opposing faces of the separation cut 24 are spaced apart to facilitate the insertion of a cable or conduit into the through channel 23. In this case, the symmetrical features of the cable sealing connector 16 do not relate to the initial configuration but rather to the planned usage configuration (operating position), in which the opposing faces of the separation cut 24 are pressed into a sealing contact with each other.

[0044] These symmetrical features and the ability to be positioned in various reversible usage locations are particularly advantageous for smaller cable sealing joint blocks 16, which are housed in cable entry devices and are in direct contact with each other, for example, as Figure 4 As shown.

[0045] According to the implementation method: - The cable sealing connector block 16 forms only one or at most two through channels 23, and - In the operating position, the cable sealing connector 16 is in direct contact with at least one other cable sealing connector 16, and - The shape and dimensions of the second surface 19 of the cable sealing connector block 16 are the same as those of at least one other second surface 19 of the cable sealing connector block 16, and - The shape and size of the third surface 21 of the cable sealing joint block 16 are the same as those of at least one other cable sealing joint block 16.

[0046] According to an embodiment, a set of cable sealing connector blocks 16 includes a plurality of first cable sealing connector blocks 16 and additional cable sealing connector blocks 16, wherein all the cable sealing connector blocks 16 in the plurality of first cable sealing connector blocks are the smallest components in the set of cable sealing connector blocks 16.

[0047] According to an embodiment, a set of cable sealing connector blocks 16 includes a plurality of first cable sealing connector blocks 16 and additional cable sealing connector blocks 16, wherein: - All cable sealing joint blocks 16 in the plurality of first cable sealing joint blocks have a second side 19 of the same shape and size; - All cable sealing joint blocks 16 in the plurality of first cable sealing joint blocks have a third side 21 of the same shape and size; - The size of the second face 19 of all the cable sealing joint blocks 16 in the plurality of first cable sealing joint blocks is smaller than the size of the second face 19 of the other cable sealing joint blocks; - The third face 21 of all cable sealing joint blocks 16 in the plurality of first cable sealing joint blocks is smaller than the third face 21 of the other cable sealing joint blocks.

[0048] The frame 3 is formed to face the mounting side 30 of the application wall 2 and the visible side 31 opposite to the mounting side 30. Therefore, advantageously, in the operating position, the cable entry device 1 allows the cable sealing connector block 16 to face the mounting side 30 and the visible side 31 respectively with each of its two first faces 17, and to face the upper side 7 and the lower side 5 respectively with each of its two second faces 19. While installers may easily misjudge the vertical and horizontal orientation of the cable sealing connector block in the prior art, they never misjudge the direction of the through channel 23 due to the forced path of the cable. This new configuration eliminates any doubt about the installation direction, significantly reduces the risk of mispositioning of the cable sealing connector block 16, speeds up the assembly of the cable entry device 1, and ensures optimal planned sealing in all four orientations involved.

[0049] Detailed description of cable sealing connector block 16 The present invention includes individual cable sealing connector blocks 16 (i.e., frameless 3), and multiple said cable sealing connector blocks 16 are grouped together and serve as components of the cable introduction device 1.

[0050] The cable sealing connector 16 is made of an elastic material, and the cable sealing connector 16 is designed to be positioned in the receiving seat 11 of the cable entry device 1 in the operating position. Figure 4 And the cable sealing joint block 16 is formed: - Two opposite first (axial) surfaces 17, which face the first local direction 18 of the cable sealing joint block 16. Figure 16 The local direction 18 indicated in the middle), and the two opposite first (axial) surfaces 17 are intended to face the cable passage direction 12 in the operating position ( Figure 1 , Figure 4 The cable routing direction shown in Figure 12). - Two opposite second (upper-lower) surfaces 19, which face the second partial direction 20 of the cable sealing joint block 16, and which are intended to face the lower side 5 and upper side 7 of the cable entry device 1 (frame 3) respectively in the operating position; - Two opposite third (lateral) surfaces 21 facing the third local direction 22 of the cable sealing joint block 16, and the two opposite third (lateral) surfaces 21 are intended to face the two lateral sides 9 of the cable entry device 1 (frame 3) respectively in the operating position; - Through passage 23, which extends along the first local direction 18 and opens into the two first surfaces 17 to receive and enclose cables or conduits; - Separation cut 24, which extends from one side of the through channel 23 to the third face 21, with only one third face and spaced apart from both second faces 19, to allow cables or conduits to be inserted laterally into the through channel 23.

[0051] The first local direction (or axis) 18, the second local direction (or axis) 20 and the third local direction (or axis) 22 are orthogonal to each other (each is orthogonal to the other two).

[0052] Both second surfaces 19 of the cable sealing connector block 16 are planar, parallel to each other, and preferably smooth (the term "smooth" should be understood as smooth to some extent but still ensuring a seal between the two second surfaces 19 at the contact interface; for example, there may be local or very low surface textures, such as a cover layer for markings or alphanumeric codes. Alternatively, the second surfaces 19 of the cable sealing connector block 16 may be textured).

[0053] The two third surfaces 21 of the cable sealing connector block 16 each form a block coupling surface 25 having a plurality of linear grooves 26 and a plurality of ribs 27, the plurality of linear grooves 26 and the plurality of ribs 27 being parallel to each other and parallel to the second local direction 20, the block coupling surface 25 being intended to engage the corresponding coupling surface of the cable entry device 1 in the operating position, for example, engaging the column coupling surface 28 of one of the lateral column 8 and / or the intermediate column 10 (if the intermediate column 10 is provided) of the cable entry device 1.

[0054] The block coupling surface 25, preferably the entire third surface 21, is symmetrical with respect to the first local symmetry plane 29, which is orthogonal to the first local direction 18.

[0055] Therefore, in the operating position, each cable sealing connector block 16 can be oriented or accommodated in the receiving seat 11 in four different orientations, having the same space-occupying shape in all orientations, or having the same shape of engagement and geometric coupling between the block coupling surface 25 and the column coupling surface 28, preferably having the same shape of engagement and geometric coupling between the entire third surface 21 and the receiving seat 11 in all orientations.

[0056] At the operating position, the two cutting surfaces of the separation cut 24 remain in continuous contact with each other without affecting the external shape of the block coupling surface 25 or the third surface 21.

[0057] According to the implementation method ( Figure 16 , Figure 17 Groove 26 includes: - Two outer grooves (26'), each outer groove (26') being adjacent to the outer edge 32 formed between the third surface 21 and the first surface 17; - The width of the central groove 26” (in the first local direction 18) is greater than the width of the outer groove 26’ (in the first local direction 18). Preferably, the width of the central groove 26” (in the first local direction 18) is more than twice the width of the outer groove 26’ (in the first local direction 18).

[0058] Rib 27 includes: - Two separating ribs (27') that extend between one of the outer grooves 26' and the central groove 26". - Two edge ribs 27”, the two edge ribs 27” form the outer edge 32.

[0059] The outer groove 26' has a rectangular cross-sectional shape. The central groove 26" has a flat bottom and two curved side surfaces with an arc-shaped cross-sectional shape.

[0060] Both the separating rib 27' and the edge rib 27" have flat rib tips. Preferably, both the separating rib 27' and the edge rib 27" have planar rib tips. The edge rib 27" protrudes beyond the separating rib 27' in the third local direction.

[0061] Advantageously, in the operating position, the central groove 26” receives the corresponding central rib 36” of the column coupling surface 28 by form coupling, while the outer groove 26” receives the corresponding outer rib 36’ of the column coupling surface 28 by form coupling and elastic preload. The outer rib 36’ preferably has a top edge ridge 38 so as to be partially pressed into the elastic material of the cable sealing joint block 16, thereby defining a certain sealing line.

[0062] The through channel 23 has a constant cross-sectional shape, such as cylindrical and / or elliptical and / or flat, with the only possible exception being one or more circumferential ribs 33 that project radially toward the interior of the through channel 23 to improve the sealing and anti-dislodgement engagement between the cable sealing joint block 16 and the encapsulated cable or conduit.

[0063] The two first surfaces 17 are preferably parallel to each other and may be smooth (except for any raised markings and through channels 23). Advantageously, the first surfaces 17, and possibly the entire cable sealing joint block 16, have a shape symmetrical with respect to the first local plane of symmetry 29.

[0064] More advantageously, the second face 19 may have the entire cable sealing joint block 16 having a shape symmetrical with respect to the second local symmetry plane 34, which is orthogonal to the second local direction 20.

[0065] This allows multiple cable sealing connector blocks 16 to be stacked in the receiving seat 11.

[0066] The cable sealing connector block 16 is made of an elastic material, preferably a thermoplastic elastomer (TPE).

[0067] The cable sealing connector block 16 may include a plurality of said through channels 23 formed in the same cable sealing connector block 16. At least one through channel 23 of the cable sealing connector block 16 may be formed in a central position relative to the outer contour of the cable sealing connector block 16, or in an off-center position relative to the outer contour of the cable sealing connector block 16.

[0068] Alternatively, a "blind" elastic block with the same external shape as the cable sealing joint block 16 can be provided, but without a through channel 23, designed to block locations not used for cable passage.

[0069] Detailed description of the receiving seat 11 The column coupling surface 28 forms a plurality of linear grooves 35 and a plurality of ribs 36, which are parallel to each other and parallel to the extensions of the lateral column 8 and the intermediate column 10 (if an intermediate column 10 is provided). The column coupling surface 28 is designed to engage the corresponding block coupling surface 25 in the operating position by means of shape coupling and sealing compression contact.

[0070] According to the implementation method ( Figure 8 ), ribs 36 include: - Two outer ribs 36', one outer rib is closer to the mounting side 30, and the other outer rib is closer to the visible side 31; - Central rib 36”, the width of which is greater than the width of outer rib 36’, preferably the width of which is greater than twice the width of outer rib 36’.

[0071] Groove 35 includes: - Two separating grooves 35', which extend between one of the outer ribs 36' and the central rib 36' respectively; - Two additional boundary grooves 35” in only the lateral posts 8 and the possible intermediate connecting posts 10” (described later) define the post coupling surfaces 28 on the mounting side 30 and the visible side 31. However, preferably, the boundary grooves 35” do not appear in the remaining intermediate posts 10.

[0072] The outer rib 36' has a triangular apex or pointed cross-sectional shape, which defines the aforementioned apex edge ridge. More advantageously, the outer rib 36' forms two planar intermediate surfaces 37, which are recessed relative to the apex edge ridge 38 and extend laterally along the apex edge ridge 38. The central rib 36" has a flat apex and two curved side surfaces with an arcuate cross-sectional shape.

[0073] The dividing grooves 35' all form flat rib tops, preferably, the dividing grooves 35' all form planar rib tops. The boundary grooves 35" (if present) have a substantially angled profile, that is, they define the outer angled edge or angled notch of the angled edge of the lateral post 8 or possibly the intermediate connecting post 10'.

[0074] Advantageously, the boundary groove 35” on the mounting side 30 is triangular in shape, facing one of the lateral sides 9 and open toward the mounting side 30, thereby exposing (and flattening) the elastic material of the first surface 17 of the cable sealing connector block 16 directly toward the application wall 2.

[0075] Advantageously, the boundary groove 35” on the visible side 31 has a rectangular U-shape with an opening facing only one of the lateral sides 9, thereby forming a closed edge 39 that (sealingly) engages the first face 17 of the cable sealing connector block 16 on the visible side 31.

[0076] The closed edge 39 extends along the lateral column 8 on the visible side 31, along at least one intermediate connecting column 10' (if an intermediate connecting column 10' is provided), and along the base beam 4 and along the upper beam 6, thereby forming a waterproof protection around all receiving seats 11.

[0077] The intermediate post 10—which lacks a boundary groove 35” and a closed edge 39, and whose cross-sectional area and extension in the cable passage direction 12 are smaller than those of the lateral posts 8 and the intermediate connecting post 10’ in the cable passage direction 12—is covered by the edge rib 27” of the cable sealing connector block 16, which is at least partially or fully inserted in the operating position, on the mounting side 30 and the visible side 31. Figure 19 ).

[0078] The column coupling surface 28, preferably the entire frame 3, is made of a thermoplastic material, for example, of glass fiber-filled polyamide, which has a harderness than the elastic material of the cable sealing joint block 16.

[0079] According to the embodiment, the column coupling surface 28 is symmetrical with respect to the frame plane 13 in the absence of the boundary groove 35” and the closed edge 39. Conversely, the entire receiving seat 11, including the boundary groove 35” and the closed edge 39, is asymmetrical with respect to the frame plane 13 due to the two different functions of interacting with the cable sealing connector block 16 on the mounting side 30 and the visible side 31. Figure 19 ).

[0080] Detailed description of Framework 3 According to one embodiment, the first frame component 14 forms a base beam 4, two lateral columns 8, and one or more intermediate columns 10 in a comb-like configuration (FIG. 5). The second frame component 15 forms an upper beam 6. The first frame component 14 and the second frame component 15 can be connected to each other by connecting screws 40, which can be inserted into the connecting holes 49' of the upper beam 6 and the corresponding connecting holes 49' of the lateral columns 8 and one or more intermediate connecting columns 10' (if intermediate connecting columns 10' are provided), and the connecting screws 40 can be screwed into connecting nuts 41, for example, which are inevitably and non-rotatably accommodated or locked (in a hexagonal seat not shown) in the base beam 4.

[0081] The free ends of the lateral columns 8 and the intermediate column 10 (in the open position) include connecting protrusions 42, which (in the closed position) are inserted into corresponding connecting recesses 43 in the upper beam 6. Figure 3 , Figure 4 This further stabilizes and aligns the first frame component 14 and the second frame component 15 with each other.

[0082] Frame 3, preferably only the first comb-shaped frame component 14, forms a plurality (e.g., four) mounting through holes 44 extending in the cable passage direction 12 to receive mounting screws 45 that can be screwed into the application wall 2. Figure 14 ).

[0083] The frame 3 includes a mounting washer 46 made of an elastic material and overmolded onto the frame 3, particularly onto the first frame member 14 and the second frame member 15, and protruding from the frame 3 on the mounting side 30. By overmolding the mounting washer 46 onto the frame 3, the need for a separate washer and the risk of washer misalignment are eliminated.

[0084] Mounting washers 46 extend continuously around all receiving seats 11, particularly along the base beam 4, side columns 8 and top beam 6, and also around all mounting holes 44, preferably extending in a ring around each mounting hole 44.

[0085] To compensate for the manufacturing tolerances of frame 3, the mounting washer 46 protrudes from the surface of frame 3 by a washer height of at least 1.5 mm, or in the range of 1 mm to 3 mm, for example, a washer height of 2 mm.

[0086] On the other hand, to prevent the mounting washer 46 from being flattened due to over-tightening of the mounting screw 45, the frame 3 forms a plurality of adjacent protrusions 47 on the mounting side 30. The plurality of adjacent protrusions 47 are adjacent to the mounting washer 46. Preferably, the plurality of adjacent protrusions 47 are at or near the mounting hole 44. Figure 9 The protrusion 47 allows for the use of a higher mounting washer 46 compared to existing technology. The protrusion 47 can be positioned externally relative to the mounting hole 44. Figure 9 (The location is indicated by reference numeral 47 in the attached drawing) to prevent undesirable warping of the frame 3 in response to tightening of the mounting screw 45. The protrusion 47 may also be formed by, or only by, for example, the protruding edge of the mounting hole 44, as... Figure 7 As shown.

[0087] The frame 3 also includes an upper beam washer 48, which is made of an elastic material and is overmolded on the frame 3, particularly on the second frame member 15, and protrudes from the upper beam 6 toward the lower side 5 of the frame 3 into the receiving seat 11 to sealably engage the cable sealing connector block 16 adjacent to the upper beam 6.

[0088] By overmolding the upper beam washer 48 onto the frame 3, the need for individual washers and the risk of washer misposition are eliminated.

[0089] The upper beam washer 48, together with the portion of the mounting washer 46 extending in the upper beam 6, is formed as a single piece and has material continuity. Figure 3 Advantageously, the mounting washer 46 and the upper beam washer 48 together form a closed loop around all the connecting holes 49 of the upper beam 6.

[0090] Advantageously, the base beam 4 may not have an elastic washer that engages with the cable sealing joint block 16, and may serve as a seal by directly engaging the rigid plastic material of the base beam 4 (e.g., one or more ribs of the base beam 4) with the adjacent cable sealing joint block 16.

[0091] According to the implementation method (Figure 6, Figure 7 , Figure 15 The mounting hole 44 forms a recessed seat (or enlarged outer portion) 50 on the mounting side 30, which is wider than the rest of the mounting hole 44 and is adapted to receive the rivet head or bushing flange of the rivet or internally threaded bushing 51 of the application wall 2. This eliminates the need for an additional gasket "spacer" layer between the cable entry device 1 and the application wall 2.

[0092] According to the embodiment, the mounting hole 44 forms an interference protrusion 51, which protrudes radially inward and is configured to achieve interference engagement with the mounting screw 45 as a measure to prevent the mounting screw from falling off.

[0093] According to an embodiment, the first frame component 14 and the second frame component 15 can be connected by a snap-fit ​​connection (e.g., having a ratchet). Figure 20 They are (pre-)connected to each other in the closed position to obtain a temporary connection, in preparation for final tightening with connecting screws.

[0094] Figure Labels Cable entry device 1 Application wall 2 Framework 3 Foundation beam 4 5 on the bottom 6th beam Upper side 7 8 lateral columns Lateral side 9 10 central pillars Receiving seating unit 11 Cable routing direction 12 Frame Plane 13 First frame component 14 Second frame component 15 Cable sealing joint block 16 Page 17 First local direction 18 Page 2, page 19 Second local direction 20 Page 3, page 21 Third local direction 22 Through passage 23 24 separation incisions Block coupling surface 25 Groove 26 26' external groove Central groove 26” Rib 27 27' of the dividing rib 27” edge rib Column coupling surface 28 First local symmetry plane 29 Mounting side 30 Visible side 31 outer edge 32 Circumferential ribs 33 Second local symmetry plane 34 Groove 35 35' of the dividing groove 35” Boundary Groove 36 ribs 36' outer rib Central rib 36” Intermediate surface 37 Top edge ridge 38 Closed edge 39 Connecting screw 40 Connecting nut 41 Connecting protrusion 42 Connecting notch 43 Mounting hole 44 Mounting screw 45 Install washers 46 Adjacent protrusion 47 Upper beam washer 48 Connection hole 49 of upper beam 6 Column connection hole 49' Recessed seat portion 50 Interference salient 51 Bushing or threaded rivet 52.

Claims

1. A cable sealing connector block (16), said cable sealing connector block (16) being intended to be received in a receiving seat (11) of a cable entry device (1) in an operating position, The cable sealing connector block (16) includes: - Two opposite first surfaces (17) facing a first partial direction (18) of the cable sealing joint block (16), the first partial direction (18) corresponding to the cable through direction (12). - Two opposite second surfaces (19), which face the second local direction (20) of the cable sealing connector block (16), and which are intended to face the lower side (5) and upper side (7) of the cable entry device (1) respectively in the operating position. - Two opposite third surfaces (21), which face the third local direction (22) of the cable sealing joint block (16), and which are intended to face the two lateral sides (9) of the cable entry device (1) respectively in the operating position. - Through channel (23), which extends along the first local direction (18) and opens into the two first surfaces (17) to receive and surround cables or conduits; - A separation cut (24) extending from one side of the through channel (23) to only one third surface (21) and spaced apart from both second surfaces (19) to allow the cable or the conduit to be inserted laterally into the through channel (23). Among them, the first local direction (18), the second local direction (20), and the third local direction (22) are orthogonal to each other. The two second surfaces (19) of the cable sealing connector block (16) are both planar, parallel to each other, and smooth. The cable sealing connector block (16) has two third surfaces (21) that each form a block coupling surface (25). The block coupling surface (25) has a plurality of grooves (26) and a plurality of ribs (27). The plurality of grooves (26) and the plurality of ribs (27) are linear, parallel to each other and parallel to the second local direction (20). The block coupling surface (25) is designed to engage the corresponding coupling surface (28) of the cable introduction device (1) at the operating position. The block coupling surface (25) or the entire third surface (21) is symmetrical with respect to the first local symmetry plane (29), which is orthogonal to the first local direction (18).

2. The cable sealing joint block (16) according to claim 1, wherein, In the operating position, the cable sealing connector block (16) can be oriented in four different orientations or accommodated in the receiving seat (11), having the same space-occupying shape in all orientations, or having the same form of engagement and geometric coupling between the block coupling surface (25) and the coupling surface (28) of the cable introduction device (1).

3. The cable sealing joint block (16) according to claim 1 or 2, wherein, The groove (26) includes: - Two outer grooves (26'), each outer groove (26') being adjacent to the outer edge (32) formed between the third surface (21) and the first surface (17); - A central groove (26"), the width of which is greater than the width of the outer groove (26'), and The rib (27) includes: - Two separating ribs (27') extending between one of the outer grooves (26') and the central groove (26"). - Two edge ribs (27"), which form the outer edge (32).

4. The cable sealing joint block (16) according to claim 3, wherein, The outer groove (26') has a rectangular cross-sectional shape, the central groove (26") has a flat bottom and two curved side surfaces with an arc-shaped cross-sectional shape, the partition rib (27') and the edge rib (27") both form planar rib tops, and the edge rib (27") protrudes beyond the partition rib (27') in the third local direction (22).

5. The cable sealing joint block (16) according to any one of the preceding claims, wherein: - The through channel (23) has a cylindrical shape, with the only exception being the possible circumferential anti-loosening rib (33). - The two first faces (17) are parallel to each other and are planar; - The first surface (17) or the entire cable sealing joint block (16) has a shape that is symmetrical with respect to the first local symmetry plane (29); - The second surface (19) or the entire cable sealing joint block (16) has a shape that is symmetrical with respect to the second local symmetry plane (34), which is orthogonal to the second local direction (20).

6. The cable sealing joint block (16) according to any one of the preceding claims, wherein, The second surface (19) or the entire cable sealing joint block (16) has a shape that is symmetrical with respect to the second local symmetry plane (34), which is orthogonal to the second local direction (20).

7. The cable sealing joint block (16) according to any one of claims 1 to 5, wherein, The separation cut (24) is defined by two opposing surfaces that form a stepped or serrated surface and have mutual shape compatibility.

8. The cable sealing joint block (16) according to any one of the preceding claims, wherein the cable sealing joint block (16) has an initial shape, wherein, The two opposing faces of the separation cut (24) are spaced apart from each other to facilitate the insertion of the cable or the conduit into the through channel (23), and wherein the opposing faces of the separation cut (24) are intended to be pressed into a sealed contact with each other in the intended use configuration.

9. The cable sealing joint block (16) according to any one of the preceding claims, wherein: - The cable sealing joint block (16) forms only one through channel (23), and - In the operating position, the cable sealing connector block (16) is in direct contact with at least one other cable sealing connector block (16), and - The shape and size of the second surface (19) of the cable sealing connector block (16) are the same as the shape and size of the second surface (19) of at least one other cable sealing connector block (16), and - The shape and size of the third surface (21) of the cable sealing connector block (16) are the same as the shape and size of the third surface (21) of at least one other cable sealing connector block (16).

10. A set of cable sealing connector blocks (16), said set of cable sealing connector blocks (16) comprising a plurality of first cable sealing connector blocks (16) according to any one of the preceding claims and additional cable sealing connector blocks according to any one of the preceding claims, wherein, All of the first cable sealing joint blocks (16) are the smallest components in the set of cable sealing joint blocks (16).

11. A set of cable sealing connector blocks (16), said set of cable sealing connector blocks (16) comprising a plurality of first cable sealing connector blocks (16) according to any one of the preceding claims and additional cable sealing connector blocks according to any one of the preceding claims, wherein: - All of the cable sealing joint blocks (16) in the plurality of first cable sealing joint blocks have a second side (19) with the same shape and size. - All cable sealing joint blocks (16) of the plurality of first cable sealing joint blocks have the same shape and size of third side (21). - The size of the second face (19) of all the cable sealing joint blocks (16) of the plurality of first cable sealing joint blocks is smaller than the size of the second face (19) of the other cable sealing joint block; - The size of the third face (21) of all the cable sealing joint blocks (16) of the plurality of first cable sealing joint blocks is smaller than the size of the third face (21) of the other cable sealing joint block.

12. A cable entry device (1), the cable entry device (1) comprising: A) A rectangular frame (3), said rectangular frame (3) being formed by the following: - The base beam (4) located on the lower side (5) of the frame (3); - An upper beam (6) located on the upper side (7) of the frame (3), the upper side (7) of the frame (3) being opposite to the lower side (5); - Multiple columns (8, 10, 10') including at least two lateral columns (8) extending from the base beam (4) to the upper beam (6) on two opposite lateral sides (9) of the frame (3). The columns (8, 10, 10') define one or more through-feeding seats (11) between the columns (8, 10, 10'), and the one or more through-feeding seats (11) pass through in the cable passage direction (12) transverse to the frame plane (13) of the frame (3). The frame (3) is divided into at least a first frame component (14) and a second frame component (15), which are capable of being connected to each other in a closed position and separated from each other in an open position, thereby allowing the cable sealing connector block (16) to be inserted into the receiving seat (11). The frame (3) is formed with a mounting side (30) facing the application wall (2) and a visible side (31) opposite to the mounting side (30). B) A plurality of cable sealing connector blocks (16), said plurality of cable sealing connector blocks (16) being made of an elastic material and being able to be positioned in the receiving seat (11) in an operating position, and said plurality of cable sealing connector blocks (16) having: - Two opposite first surfaces (17) facing a first local direction (18) of the cable sealing connector block (16), and the two opposite first surfaces (17) are intended to face the cable passage direction (12) in the operating position. - Two opposite second surfaces (19) facing the second local direction (20) of the cable sealing joint block (16), and the two opposite second surfaces (19) are intended to face the lower side (5) and upper side (7) of the frame (3) respectively in the operating position. - Two opposite third surfaces (21), which face the third local direction (22) of the cable sealing joint block (16), and which are intended to face the two lateral sides (9) of the frame (3) respectively in the operating position. - Through channel (23), which extends along the first local direction (18) and opens into the two first surfaces (17) to receive and surround cables or conduits; - A separation cut (24) extending from one side of the through channel (23) to only one third surface (21) and spaced apart from both second surfaces (19) to allow the cable or the conduit to be inserted laterally into the through channel (23). Among them, the first local direction (18), the second local direction (20), and the third local direction (22) are orthogonal to each other. The two second surfaces (19) of the cable sealing connector block (16) are both planar, parallel to each other, and smooth. The cable sealing connector block (16) has two third surfaces (21) that each form a block coupling surface (25). The block coupling surface (25) has a plurality of linear grooves (26) and a plurality of ribs (27). The plurality of linear grooves (26) and the plurality of ribs (27) are parallel to each other and parallel to the second local direction (20). The block coupling surface (25) is designed to engage with the corresponding column coupling surface (28) of one of the columns (8, 10, 10') at the operating position. The block coupling surface (25) or the entire third surface (21) is symmetrical with respect to the first local symmetry plane (29), which is orthogonal to the first local direction (18).

13. The cable entry device (1) according to claim 12, wherein, The plurality of cable sealing joint blocks (16) include cable sealing joint blocks (16): - The cable sealing joint block (16) forms only one through channel (23), and - In the operating position, the cable sealing connector block (16) is in direct contact with at least one other cable sealing connector block (16), and - The shape and size of the second surface (19) of the cable sealing connector block (16) are the same as the shape and size of the second surface (19) of at least one other cable sealing connector block (16). - The shape and size of the third surface (21) of the cable sealing connector block (16) are the same as the shape and size of the third surface (21) of at least one other cable sealing connector block (16).

14. The cable entry device (1) according to claim 12, wherein, The plurality of cable sealing connector blocks (16) includes a set of cable sealing connector blocks (16), the set of cable sealing connector blocks (16) having a plurality of first cable sealing connector blocks (16) and having additional cable sealing connector blocks, wherein all of the plurality of first cable sealing connector blocks (16) is the smallest component in the set of cable sealing connector blocks (16).

15. The cable entry device (1) according to claim 12, wherein, The plurality of cable sealing connector blocks (16) includes a set of cable sealing connector blocks (16), the set of cable sealing connector blocks having a plurality of first cable sealing connector blocks (16) and having additional cable sealing connector blocks, wherein: - All of the cable sealing joint blocks (16) in the plurality of first cable sealing joint blocks have a second side (19) with the same shape and size. - All cable sealing joint blocks (16) of the plurality of first cable sealing joint blocks have the same shape and size of third side (21). - The size of the second face (19) of all the cable sealing joint blocks (16) of the plurality of first cable sealing joint blocks is smaller than the size of the second face (19) of the other cable sealing joint block; - The size of the third face (21) of all the cable sealing joint blocks (16) of the plurality of first cable sealing joint blocks is smaller than the size of the third face (21) of the other cable sealing joint block.

Images