ES2602231A1 - Sealed and hermetic enclosures with interchangeable covers, manufactured by means of the process of metal melting (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

The invention relates to watertight and hermetic enclosures with interchangeable covers, manufactured by the metal melting process. This allows us to obtain enclosures with different resistance to the load, without the possibility of breaking or shearing the sealing gasket; smooth and refillable enclosures. Composed by a common framework (1); an interchangeable cover with smooth geometry (2) or a refillable lid (3) or a refillable lid (4) without fixing screws; a sealing gasket (5); screws (6) for tightening the lids on the frame and finally extraction tools (33). (Machine-translation by Google Translate, not legally binding)

Description

Watertight and hermetic enclosures with interchangeable covers manufactured by the metal melting process.

Object of the invention

With the present invention it is intended to incorporate into the manufacturing sector of watertight and hermetic seals manufactured with the technique of metal melting, enclosure systems without the possibility of breaking the sealing gasket and easily obtaining interchangeable caps with different load resistance.

Background of the invention

Known are the products and systems used for the tight and watertight enclosures of odors and fluids in different environments; this forces us to use materials that do not degrade and have sufficient mechanical performance to be able to withstand the pressure and / or load to which they are subjected, the mechanical aggression generated by traffic and the use of the enclosure itself.

Known is the manufacture of enclosures using different processes and materials such as: galvanized steel sheet, stainless steel sheet of different qualities, aluminum sheet, cast iron, cast aluminum, thermoset or thermoplastic composite materials.

Known is the manufacture of enclosures with sealing systems with gaskets of elastomeric materials and auxiliary elements subsequently incorporated, such as screws.

Known is the problem of the rupture of the sealing gasket caused by the repetitive loads to which the area of the closing of the cover with the frame is subjected (due to the continued traffic of vehicles).

Known is the problem that some reversible covers with little contact surface on the seal cause deterioration of this because the

board ends up supporting and transferring to the frame all the load to which the cover of the enclosure is subjected.

Known is the problem in some enclosure models of not being able to change to another rolling surface or other load capacity without having to replace the entire set of the frame already consolidated in the surrounding pavement and the cover of the enclosure (which obliges a laborious reinstallation process).

• Several examples of relevant enclosure documents made of different types of materials are: (ES 1 051 684 U), (ES 1070948 U), (ES 1059 901 U), (ES 2

331 551 61), (ES 2 508 815 61), (ES 1 045 222 U), (ES 1 050 487 U), (ES 1 050 488 U).

Description of the invention

The invention relates to enclosures with interchangeable covers for watertight and hermetic records, obtained by the metal melting technique. Metals that require heating, insertion and / or injection into a molding system and subsequent cooling. The molding system must be able to withstand the melting temperature of the fluid, being able to be manufactured with different materials or expressly configured for each piece using sand with binder additives and compacted in a matrix mold similar to the product to be obtained.

With the technique described above, parts of complex geometries can be molded with an exterior and interior finish with greater or lesser roughness, which allows to manufacture enclosures capable of granting tightness without the possibility of breaking the closing joint and easily obtaining interchangeable, robust and With different load resistance.

The basic products obtained in different geometries and dimensions are: a common frame (1) and a smooth cover (2) or another refillable (3) that is positioned and fixed inside the frame (1) by screws (6) that generates the tightening of the cover on the gasket of elastomeric material (5) located in the housing (7) of the frame (1). The tightening is controlled and limited by the stops (15). It is also possible to use a refillable lid

(4) without thieves.

Description of the figures

Complementing the description, the present specification is accompanied by a series of drawings of an illustrative and non-limiting nature, in order to facilitate the understanding of the invention.

the

Figure 1 shows a sketch of the different types of watertight and hermetic enclosures.

Figure 2 shows a sketch of the components of the different watertight and hermetic enclosures.

Figure 3 shows a sketch and sections of the common frame of the watertight and hermetic enclosure.

•

Figure 4 shows a sketch and sections of the smooth cover of the hermetic and hermetic enclosure (with tightening screws).

•

Figure 5 shows a sketch and sections of the refillable lid of the watertight and hermetic enclosure (with tightening screws).

Figure 6 shows a sketch and sections of the refillable lid of the tight and hermetic enclosure. (without tightening screws).

Figure 7 shows a sketch and sections of the different reinforced caps of the watertight and hermetic enclosures.

Figure 8 shows a sketch and sections of the accessory extraction system for watertight and hermetic enclosures.

Preferred Embodiment of the Invention

As a preferred invention, they are the enclosures for watertight and hermetic records with interchangeable covers for the closing of arches, wells, septic tanks, sewer accesses, sewers and similar openings made in the ground, on sidewalks, in pavements and in formwork. Enclosures made of cast aluminum metal and that are located, fixed, consolidated and flush with the surrounding pavement.

Manufacturing process As a preferred process, the sand molding system will be used, expressly configuring for each piece a non-reusable sand mold, using sand with binder additives and compacted in a matrix mold similar to the product to be obtained.

S The main features of cast aluminum metal are: density from 2700 to 2750 kg / m3, melting temperature from 500 to 620 oC, tensile strength from 130 to 280 N / mm ', modulus of elasticity from 72000 N / mm 'with an elongation of 1 to 2%.

Once the non-reusable sand mold is configured, the fluid is cast in the holes intended for this purpose, allowed to cool, solidify and subsequently the demoulding

10 of the product obtained by destroying the sand mold. Helped with a vibration system, the product obtained from all the sand is removed in order to proceed with its reuse. Subsequently, the leftover of the castings of the molten metal, machining and shot blasting of the products obtained, which are:

15 Common use framework (1).

Smooth cover (2).

•

Refillable cover with screws (3).

•

Reliable cover without screws (4).

Common use framework

20 Commonly used frame (1) with hollow prismatic geometry where the upper face (32) and the lower face (10) are completely smooth and without any protrusion. The lateral faces in its internal part (30) delimit the housing of the enclosure covers (2), (3) or (4) and configure the total height of the enclosure.

Common use framework (1) that has an external perimeter flange (8) for

25 ensure anchoring with the surrounding area of the adjacent pavement bounded by the outer part (31) of the side faces.

Common use frame (1) that has an internal perimeter housing (7) to locate the seal (5) of elastomeric material and solid internal areas (9) with a minimum of four blind holes with threads (18) to be able to fix and press the smooth cover (2) or the

30 refillable cover (3) on the seal (5).

Smooth cover

Smooth cover (2) of prismatic geometry on whose faces, the upper face closed, where its outer side (11) is the transit zone and its inner side (25) with structural reinforcements type cartilage (12), houses the limiters of pressure (15) and the logo of the

maker. This same inner side (25), detailed in Figure 7 can be recreated to

have more thickness in order to obtain a greater resistance to the load.

Smooth cover (2) of prismatic geometry on whose faces, the open bottom face (13) is

hollow and the height of the side faces (14) is adequate so that the cover is flush with the top of the frame (1).

Smooth cover (2) that has through holes (16) with thread (28) to fix the

Extraction system (33) detailed in Figure 8 and the appropriate machining (17) to accommodate, retrace and screw the head Allen screws (6) that are fixed on the thread

(18) of the frame (1).

Refillable cover with screws

Refillable lid (3) of prismatic geometry, in whose faces, the open upper face (19) is hollow and refillable, the lower face is closed and refillable in its internal part (26) and the

height of the side faces (21) is adequate so that the lid is flush with the

upper part of the frame (1).

Refillable lid (3) that has a geometry staggered towards the outside (20) on its lower and closed face in order to obtain a greater total height than the lateral faces (21), thus achieving a greater moment of inertia that grants greater

stiffness to the lid (3).

Refillable cover (3) on whose faces, the lower face is closed and on its external and visible side (20) the manufacturer's logo is housed and its internal refillable side (26), detailed in Figure 7, can be recreated to have more thickness in order to obtain a greater resistance to the load.

Refillable cover (3), which is filled with material similar to the surrounding one, which has through holes (16) with thread (28) to fix the extraction system (33) detailed in Figure 8 and the appropriate machining (17 ) to accommodate, retrace and screw the head of the Allen screws (6) that are fixed on the thread (18) of the frame (1).

Refillable cover without screws Refillable cover (4) of prismatic geometry, in whose faces, the open upper face (24) is hollow and releasable, the lower face is closed and refillable in its internal part (27). The height of the side faces (23) is adequate so that the cover is flush with the upper part of the frame (1).

Filling lid! (4) that has a geometry staggered towards the outside (22) on its lower and closed face in order to obtain a greater total height than the lateral faces (23), thereby achieving a greater moment of inertia than it grants greater rigidity to the lid (4).

Refillable lid (4) on whose faces, the underside is closed and on its external and visible side (22) houses the manufacturer's logo and its refillable internal side (27), detailed in Figure 7, can be raised to be thicker in order to obtain greater load resistance.

Refillable cover (4), which is filled with material similar to the surrounding one, which does not have through holes (16), but exerts sufficient pressure on the seal (5) to be able to provide the sealing system with adequate sealing .

Cover extraction system Accessory extraction system (33) of the covers (2) and (3), characterized by a minimum of two vertical through holes (16) with recesses (17) to retract the screw head (6 ) that have a thread (28) in order to attach the useful extraction accessories (33) that have a grip system (29) or similar and a threaded section

with the same type of thread (20) existing in the holes (16).

In the enclosure system with the refillable cover (4), since it does not have threaded holes (16), the extraction must be carried out with accessory suction elements, anchorage or grip systems inserted in the filling material of the area ( 27), detailed in Figure 6 and Figure 7.

Differential aspects

The main advantages and differential aspects compared to existing products in the market are:

Underside of the smooth frame (10): no protruding elements (used in others

S enclosures to locate the threads for fixing the cover to the frame). Appearance

represented in Figure 3.

Internal recreated areas (9) to locate the fixing threads of the cover to the frame.

Aspect represented in Figure 3.

Arrangement and geometry of the housing (7) of the seal in the frame. 10 Aspect represented in Figure 3.

• Limiters (15) for closing and tightening the cover on the closing joint. Aspect represented in Figure 4.

•

Arrangement and geometry type of the internal reinforcements (12) of the smooth cover. Aspect represented in Figure 4. 15 • Reinforced reinforcement for the reinforced cap towards the inner part (25), (26), (27).

Aspect represented in Figure 7. Stepped geometry of the refillable lid towards the outside (20), (22) of the face lower. Aspect represented in Figure 5 and Figure 6.

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The covers (2), (3), (4) are not reversible, but interchangeable in the common frame 20 (1). Aspect represented in Figure 2.

Claims (9)

S

1. Enclosure consisting of a common frame (1), a closing joint (5), a smooth cover (2) or a refillable cover (3), the clamping screws (6) and the extraction system (33) .

2. Enclosure consisting of a common frame (1), a closing joint (5) and a refillable cover without screws (4).

10

3. Enclosure, according to claims 1 and 2. characterized in that the covers have a non-slip surface in their transit zone, are not reversible and are flush with the upper part (32) of the common frame (1).

4. Enclosure, according to claims 1 and 2, characterized by a common frame (1) smooth in its lower face (10) and which has blind threads (18) located at least in four solid zones (9) of the inner zone of the common framework (1).

fifteen

5. Enclosure according to claims 1 and 2, characterized by the sealing gasket (5) of spongy EPOM material, cylindrical geometry between 6 and 8 mm in diameter, located in the housing (7) of the inner area of the common frame (one).

twenty

6. Enclosure according to claims 1 and 2, characterized in that the refillable covers (3), (4) are filled from the internal zone to (26), (27) respectively to the upper edge (19), (24) respectively with the material and reinforcement similar to the surrounding pavement.

7. Enclosure according to claims 1 and 2, characterized in that the covers (2), (3), (4) can grow in the area (25), (26, (27) respectively in order to obtain a greater thickness in their respective faces, without changing the external geometry that is housed in the inner part of the common frame (1).

25

8, Enclosure according to claims 1 and 2, characterized in that the removable covers (3), (4) have a stepped geometry on their closed lower face towards their respective external parts (20), (22) in order to obtain a greater total height than their respective lateral faces (21), (23).

9, Enclosure according to claim 1 characterized in that at least four of

9

the fixing screws (6) are located in the corners of the enclosure, retracted, flush with the upper face (11) (19) and are made of M8 thread with cylindrical head with Allen footprint, whose support base is completely flat. 10. Enclosure according to claim 1, characterized in that the smooth cover (2) on the side 5 inside (25) of the upper face has a minimum of four reinforcing boards (12) and twelve limiters (15) of the pressure exerted on the seal (5). 11. Enclosure according to claim 1, characterized in that at least two of the through vertical holes (16) of the covers (2) and (3) have the thread (28) in order to attach the extraction tools (33) . The enclosure according to claim 2, characterized in that the refillable cover (4) does not have the holes (16) for the fixing screws (6). 13. Enclosure according to claim 2, characterized in that the refillable cover (4) must be removed with suction fittings, anchoring or grip systems inserted in the filling material of the area (27). 14. The molding process of the enclosure according to any one of claims 1 to 13, characterized in that it is executed in a non-permanent and non-reusable sand mold, which is filled with molten metal. 15. Enclosure molding process according to any of the claims of 1 to 13, characterized by running in a permanent and reusable metal mold, which is filled with molten metal. 16. The molding process of the enclosure according to claims 14 and 15, characterized in that the molten filler metal is aluminum with a density of 2700 to 2750 kg / m3, melting temperature of 500 to 620 oC, tensile strength of 130 to 280 N / mm2 and modulus of elasticity of 72000 N / mm2 with an elongation of 1 to 2%.