PL68954Y1 - Lock heater - Google Patents

Description

Pattern description

The subject of the utility model is the sub-lock heater used to heat the lock moving the railway switch.

Various devices for heating turnout closures are known. And yes, from the Polish invention entitled "Method of heating railway turnouts and a set for heating railroad turnouts" PL-203707 (WUP publ. 11/2009), a set containing ground elements and elements located below the ground level is known. Transformers - designed to work properly also in an environment with high humidity - are placed in a housing that is placed in a trench. After the power cables are led out, the surface of the substrate is covered with earth and the cables are laid in a tray adjacent to the housing of the control block placed in a free-standing housing on the ground. At the same time, power and control cables for the heater attached to the heated track section are arranged in the tray.

There is also a known device described in the Polish utility model Ru-61633 "Heated stopper for closing a railroad turnout" (publ. WUP 9/2005), which solves the problem of developing a simple and cheap system of insulation and heating of railroad turnout closures. This solution consists in placing the stop of the adjustment closure in a tight casing made of heat-insulating material. Two flat heaters are placed under the lower support planes. The cross-section of the support housing is rectangular and its upper surface is flat.

There is also known "Railroad turnout heating unit casing" described in the utility model application no. W-113934 (publ. BUP 19/2004), which consists of a box with apparatus, that is with control elements and subassemblies, and a box with separation transformers. The whole thing is placed on a support fixed to the concrete slab with anchors. There is a rubber gasket between the apparatus box and the transformer box. The apparatus box and the transformer box are connected by a connecting bolt, the bolt connecting the two boxes and securing them to the bracket.

There is also a known solution submitted for protection in Poland under the PCT procedure no. P-401155 "Induction heater for heating railway turnouts" (publ. BUP 08/2014), which describes a heater characterized by the fact that it consists of a ferrite core and a winding the ferrite core is U-shaped in longitudinal section and circular in cross section, while the winding is wound on the central part of the ferrite core.

The invention entitled: "Heating of tram and railway switches" is known from the Polish patent description No. PL 363832 A1. It is characterized by the fact that the switch is heated with hot oil, which is heated and pumped with heating pipes along the length of the needle. The heating of the oil takes place at a certain distance from the rails in the oil box, in which the oil heating process is carried out, and which is placed in a sealed cuboid-shaped enclosure box closed at the top with a flat cover. In the English invention GB-2366315 a "housing for a rail heater" ("Raił heater covef) was described. The cover is shaped to match the shape of the heating element of the rail and to enable the heating of the rail. The cover comprises a body made of a substantially rigid heat-insulating material which is completely enclosed in the housing.

The purpose of developing a new type of heater is to improve the functionality and durability of the sub-lock heater itself through the use of a uniform and watertight housing adapted simultaneously to the shape of various types of lock, i.e. a heater of various forms, which will have the same essential technical features.

The essence of the developed sub-castle heater consists in the fact that its heating element is placed in a sealed, metal casing, which is a monolithic and watertight cast, while the heating element placed in it is a tube derived from the muff, which is bent into a rectangular shape with rounded corners and then introduced into the socket, which is closed with screws and a gland. Both the socket and the screws are tight, and the housing has an upper plane with a recess.

Preferably, the housing is made of aluminum.

Preferably, the recess in the housing is a deep trapezoidal recess.

Preferably, the recess in the housing is a shallow trapezoidal recess.

Preferably, the housing recess is an arc-shaped upper plane.

Claims (3)

The developed anti-lock heater prevents freezing of the mechanisms enabling the movement of railway switches. The solution according to the utility model is monolithic, and therefore hermetic, and therefore it is completely waterproof and very resistant to corrosion and other damage. Due to the fact that the developed heater comes in three different forms with different casing shapes - it is easy to select and adapt the appropriate shape of the heater to various types of locks used to move the railway switch, also to unusual solutions used in modern railways. However, due to the fact that the housing is made of aluminum, which is an excellent heat conductor, it conducts heat easily and with low losses. Additionally, the monolithic casing protects the heater not only against water penetration and corrosion, but also against the ingress of dust and other small impurities that could damage it. The object of the utility model is presented in more detail in the drawings, in which Fig. 1 shows an axonometric view of a sub-castle heater with a visible heating element and in a casing with an upper plane with a deep trapezoidal cavity, Fig. 2 shows an axonometric view of a sub-castle heater with a visible heating element and in a casing with an upper plane with a shallow trapezoidal cavity, Fig. 3 shows an axonometric view of a sub-castle heater with a visible heating element and in a casing with an arched upper plane, Fig. 4 shows an axonometric view of an outer-frame heater in a casing with an upper plane with a deep trapezoidal recess, Fig. 5 shows an axonometric view of the heater Fig. 6 shows an axonometric view of an outer-castle heater in a casing with an arched upper plane. As shown in the figures, in the heater outside the castle, the heating element 1 is placed in the housing 2, which is a monolithic and waterproof cast. The heating element 1 is the basic element of the outside-frame heater structure and it is covered with a housing 2 of a different shape, the housing 2 shape depending on the lock type and determines the form of the outside-frame heater, which is the object of protection. The housing 2 is preferably made of aluminum and comes in various forms, the cross-section of which and the upper plane 3 are differently shaped. The sub-lock heater can be in the form of a housing 2 with an upper plane 3 with a deep trapezoidal recess 4 or in the form of a housing 2 with an upper plane 3 with a deep trapezoidal recess 4 or in the form of a housing 2 with an upper plane 3 with a shallow trapezoidal recess 5 or in the form of a casing 2 with an arched 6 upper plane 3. The drawings also show the choke 7 and tight muff 8 through which the heating element 1 is led. List of elements: 1. heating element; 2. housing; 3. top plane; 4. deep trapezoidal depression; 5. shallow trapezoidal depression; 6. arched profiling; 7. choke; 8. muff. Protective reservations 1. A sub-frame heater, the heating element of which is placed in a sealed, metal casing, characterized in that the casing (2) is a monolithic and watertight cast, and the heating element (1) placed in it is a tube led out of the muff (9), which is bent into a rectangular shape with rounded corners, and then inserted into the sleeve (9), which is closed with screws and a gland (8), both the sleeve (9) and the bolts are tight, and the housing (2) has an upper the plane (3) with the recess. 2. Sub-lock heater according to claim 3. The apparatus of claim 1, characterized in that the housing (2) is made of aluminum. 3. Sub-lock heater according to claim 3. The recess in claim 1 or 2, characterized in that the recess in the housing (2) is a deep trapezoidal recess (4).