Connection module for filter assemblies and connection assembly

Abstract

Connection module (1, 30) for filter arrangements comprising - a closure section (2) for connection to a further connection module (31), and - a filter section (3) for connection to a filter (20).

Description

The invention relates to a connection module for filter arrangements according to the preamble of claim 1 and to a connection arrangement according to the preamble of claim 7.In mechanical filter systems, the filter arrangements are heavily loaded and must be replaced after a certain service life. For this purpose, the filter arrangement, which is often mounted in an endless manner in the installation, must be separated at one location, removed and the new filter arrangement must be mounted in the installation again in an endless manner.For this purpose, the filter arrangements frequently have a mounting closure with which the beginning and end of a filter belt can be mounted in the system to form an endless filter arrangement.Known closures have the disadvantage today that they can be opened / closed only in a complicated and time-consuming manner. Moreover, they are frequently leaky and allow the medium to pass unfiltered, so that the filtrate is contaminated.It is therefore the object of the present invention to propose a connection module for filter arrangements and a connection arrangement which avoid the disadvantages mentioned.This object is achieved by the present invention according to the teaching of claim 1 and claim 7.Advantageous embodiments of the invention are the subject of the dependent claims.According to the invention, the object is achieved by a connecting module for filter arrangements, having a closure section for connection to a further connecting module, and a filter section for connection to a filter.The connecting module forms a type of adapter and provides the filter with a defined closure. For this purpose, the connection module comprises two sections.The closure portion provides a defined closure which can be connected to a further connection module. And the filter section of the connection module establishes the connection to the filter. Thus, an adequate connection can be produced for both connection partners, which is exactly matched to the respective connection partner.According to an advantageous embodiment, the closure section comprises at least one latching hook and at least one latching bay.A latched connection can thus be produced via the closure section of the connection module. This has the advantage that it is self-supporting without further elements and can also be released again for dismantling the filter arrangement.In addition, the undercuts produced by the latching hooks ensure a labyrinth-like seal within the closure, which is fluid-tight in the best case with respect to the medium to be filtered.According to a further advantageous embodiment, the cross-sectional shapes of the latching hook and of the latching bay are congruent or at least similar in such a way that a latching hook can be received by a latching bay in a form-fitting and hooking manner.This has the advantage that, with the involvement of two connecting modules, the two closure sections are mutually compatible and can engage one another in a latching manner. Thus, only the production of a single type of connection module is necessary and not of two different types.According to a further advantageous embodiment, the filter section has two spaced apart elongate legs, between which the filter can be fastened.The two legs may extend longitudinally parallel to the filter surface and receive the filter therebetween. This produces two comparatively large connecting surfaces between the two legs and in each case one filter side, which promote a firm connection to a filter.According to a further advantageous embodiment, the legs have recesses which reduce their cross section in the region of the recesses.The recesses in the leg lead to thinner material at this location because of the reduced cross section. The leg can thus more easily penetrate there, for example, with a fastening means for the filter.On the other hand, the recess also forms a kind of cavity for receiving a fastening means, so that the latter does not protrude from the leg. This prevents blockages within the filter system by protruding fastening means.According to a further advantageous embodiment, the closure section is connected integrally to the filter section.This ensures a particular strength and load-bearing capacity of the connecting module if it has been produced in one piece from a material. Here, TPU, for example, is suitable as material in order to produce the connecting module in one piece from a mold.Furthermore, according to the invention, the object is achieved by a connection arrangement having two connection modules, wherein a latching hook of the first connection module is received in a form-fitting and hooking manner by a latching bay of the second connection module, and wherein conversely a latching hook of the second connection module is received in a form-fitting and hooking manner by a latching bay of the first connection module.It is advantageous if the two connecting modules are attached to different ends of the filter to be connected. On the one hand, a type of connecting module can be easily produced without producing an expensive variance in production. And on the other hand, it is ensured that the connection modules at the different ends of the filter are compatible with each other.As a result, the connection of the filter arrangement can be realized in a simple and reliable manner using a single type of connecting module.According to an advantageous embodiment, the connecting modules are fastened to one another by means of a fastening element. In this way, in particular the edge regions of the interconnected connecting modules can be secured against tearing apart.According to a further advantageous embodiment, a filter is fixed between the legs.As a result, the connection module forms a defined interface for connecting one filter edge to another filter edge. The filter, or the filter edge, is fixed to the connecting module and is then ready for connection to the closure section. The type of connection between the legs of the connecting module and the filter is basically arbitrary. However, a tension-resistant connection is important here, which can absorb the forces acting on the filter.According to a further advantageous embodiment, the fixing is effected by means of at least one seam which, on the one hand, penetrates the legs and the filter and, on the other hand, presses the legs onto the filter surface.The seam penetrates both the legs of the connecting module and the filter to be fixed. Thus, a certain connection takes place solely by the thread of the seam and the filter is connected to the legs. The seam already blocks a movement of the filter out of the connecting module.Moreover, when the suture is contracted, it draws the legs together and clamps the filter between the legs. This results in an even stronger connection between the legs and the filter.An embodiment is illustrated in the figures and is explained below by way of example.The following are shown: FIG. 1 shows a cross-sectional view through a connection module FIG. 2 shows a cross-sectional view through the connecting module from FIG. 1 with the filter connected FIG. 3 shows a cross-sectional view through two interconnected connecting modules FIG. 4 shows a lateral view of a fastening element FIG. 5 shows a cross-sectional view through two connecting modules fastened to one another by the fastening element from FIG. 4.In FIG. 1, a cross-sectional view through a connection module 1 is shown. The connection module 1 has a closure section 2 in the left-hand region and a filter section 3 in the right-hand region. The closure section 2 and the filter section 3 are here integrally connected to one another and manufactured from a material.The closure section 2 is equipped with three latching hooks 4 and three latching indentations 5 for connection to a further connection module, not shown here.The latching hooks 4 and the latching indentations 5 have congruent cross-sectional shapes. A latching bay 5 corresponds to the inverted shape of a latching hook 4. latching hooks 4 of other connection modules can thereby be received in a form-fitting and hooking manner by the latching bay 5.In order to enable this compatibility between a plurality of connecting modules, the distances between the latching hooks 4 correspond to the distances between the latching indentations 5.The filter section 3 is provided with two spaced apart elongate legs 6 between which the filter can be fastened for connection to a filter not shown here. The legs provide on the one hand a fastening surface for the filter and on the other hand, due to their resilient mounting, a clamping of the filter between the legs 6.The legs 6 have recesses 7. In the region of these recesses 7, the cross section of the legs 7 is smaller. The recesses 7 are formed here as indentations.FIG. 2 shows a cross-sectional view through the connection module 1 from FIG. 1 with the filter 20 connected. The filter 20 is fixed between the legs 6.The fixation is effected here by means of two seams 21, the seams 21 penetrating both the legs 6 and the filter 20, and because the seams 21 press the legs 6 onto the filter surface and thus contract, a jamming of the filter 20 between the legs 6 occurs.The seams 21 are placed in the recesses 7. This achieves the advantage that the seams 21 do not protrude from the outer surface of the legs 6 and are thus protected.A further advantage is that at the position of the recesses 7 with reduced cross section the seams 21 can more easily penetrate the legs 6.In FIG. 3 a cross-sectional view through two interconnected connecting modules 30 and 31 is shown. The three latching hooks 34 of the connecting module 30 engage in the three latching indentations 35 of the connecting module 31 on account of their congruent cross-sectional shapes and vice versa. The latching hooks are each received in a form-fitting and hooking manner by the latching indentations.In other words, the latching hooks of the connection modules involved interlock with one another.If the material has elastic properties, such as TPU, this promotes the closure and the opening of the closure. Due to the elasticity, latching hooks and latching indentations are flexible to a limited extent and can snap into one another or snap out despite hooked undercuts.The hook shape and its undercuts produce a type of labyrinth seal. In the embodiment shown here, three latching hooks with three latching notches even result in three labyrinth seals connected one behind the other, which result in a particularly fluid-tight connection arrangement.The undercuts of the latching hooks are arranged on or near the central axis of the connecting modules, such that the outer surfaces of the connecting modules involved in the connecting arrangement merge into one another without offset. Thus, during use in the filter machine, nothing can become caught at the transition, which would lead to cost-intensive standstill and faults.In FIG. 4, a lateral view of a fastening element 41 is shown. In this case, the fastening element 41 is formed from a corrugated stainless steel wire in the form of a bracket hook. For better force distribution, the bow hook has two legs with different lengths.FIG. 5 shows a cross-sectional view through two connecting modules 30, 31 fastened to one another by the fastening element 41. The legs of the fastening element 41 are pushed into the connecting modules 30, 31 in the direction perpendicular to the plane of the drawing, and thus hold the two connecting modules together. In the inserted state, the fastening element 41 prevents the ends or edge regions of the connection modules 30, 31 from being able to separate from one another, for example, by the action of force during operation, and thus additionally stabilizes the connection arrangement.

Claims

Connecting module (1, 30) for filter arrangements, comprising - a closure section (2) for connection to a further connecting module (31), and - a filter section (3) for connection to a filter (20).Connecting module (1) according to Claim 1, characterized in that the closure section (2) comprises at least one latching hook (4) and at least one latching bay (5).Connecting module (1) according to Claim 2, characterized in that the cross-sectional shapes of the latching hook (4) and of the latching bay (5) are congruent or at least similar in such a way that a latching hook (4) can be received by a latching bay (5) in a positively locking and hooking manner.Connecting module (1) according to one of the preceding claims, characterized in that the filter section (3) has two spaced-apart elongate limbs (6), between which the filter (20) can be fastened.Connecting module (1) according to Claim 4, characterized in that the limbs (6) have recesses (7) which reduce their (6) cross section in the region of the recesses (7).Connecting module (1) according to one of the preceding claims, characterized in that the closure section (2) is connected integrally to the filter section (3).Connection arrangement with two connection modules (30, 31) according to one of the preceding claims, characterized in that a latching hook (34) of the first connection module (30) is received in a form-fitting and hooking manner by a latching bay (35) of the second connection module (31), and in that conversely a latching hook of the second connection module (31) is received in a form-fitting and hooking manner by a latching bay of the first connection module (30).Connection arrangement according to claim 7, characterised in that the connection modules (30, 31) are fastened to one another by means of a fastening element (41).Connection arrangement according to claim 7 or 8, characterised in that a filter (20) is fixed between the legs (6).Connection arrangement according to claim 9, characterised in that the fixing takes place by means of at least one seam (21) which, on the one hand, penetrates the legs (6) and the filter (20) and, on the other hand, presses the legs (6) onto the filter surface.

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