Telescopic triangular operating rod

Abstract

The utility model describes a telescopic triangular operating rod with double reinforcement, developed for use in electrical installations in combination with tools for operating load break switches, and also allowing the coupling of operating heads and of a series of universal tools for a wide range of applications, maintaining the required safety distance and insulation. It is intended for use in situations that require less mechanical effort, such as opening and closing non-jammed fuse switches and knife switches, removing and inserting cartridge fuses, handling voltage detectors and changing light bulbs, inter alia.

Description

TELESCOPIC TRIANGULAR MANEUVERING ROD Field of Application

[0001] The utility model describes a telescopic hot stick with double reinforcement in its upper and lower locking windows, as well as a cushioning device during the retraction operation. The product was developed for heavy-duty interventions in electrical installations, along with tools for operating circuit breakers, and allows the coupling of operating heads and a series of universal tools for a wide range of applications, while maintaining the necessary safety distance and insulation. Designed for use in situations requiring greater mechanical effort, such as opening and closing fuse switches and blades, removing and inserting fuse cartridges, operating voltage detectors, changing light bulbs, among others. State of the Art

[0002] A "hot stick" is a term used to refer to a tool used in electrical installations. It is used in conjunction with tools for operating circuit breakers, and also allows for the attachment of hot sticks and a series of universal tools for a wide range of applications, while maintaining the necessary safety distance and insulation. There are several types of hot sticks, such as the telescopic hot stick, which can be extended for use and retracted for easy transport and storage.

[0003] Document US9198488B2 refers to a telescopic pole foldable in two parts (100), composed of at least four tubular parts: an upper telescopic tubular part (200) provided with a handle (60), a first intermediate telescopic tubular part (300), a second intermediate telescopic tubular part (400), the telescopic parts sliding into each other and fixable in position by locking elements, and a lower tubular part (500) ending with a pointed end (1) connected to the second intermediate part adjacent thereto. The lower tubular part (500) is attached to the remaining parts by a rope (2) which passes through at least the second intermediate part (400), so that the stick can be folded into two parts by bringing the telescopic parts to a position of minimum extension and folding the lower part (500) over the others after having released it from the adjacent intermediate part.

[0004] Document WO2018229728 A1, presents a maneuvering stick (1) composed of a first elongated portion (10) tubular and provided with a handle portion (15) configured to be gripped by a user, and a second elongated portion (20) coupled to the work tool (50). The elongated portions (10, 20) are telescopically engaged such that they can slide freely relative to each other. A locking / unlocking device (30) is then provided arranged to pass from a locking configuration, in which it prevents the above-disclosed free sliding, to an unlocking configuration, in which it instead allows the above-disclosed free sliding. The aforementioned movement of the locking / unlocking device (30) from the locking configuration to the unlocking configuration, or vice versa, is directly actuated by the user acting on a control member (55) positioned on the handle portion (15).

[0005] Document US20110101716A1 shows a pole with telescoping sections connected by a set of buttons to temporarily fix the pole's length, keeping the sections together. The button assembly is accessible from one end of the pole and can be installed, removed, and positioned through a connector accessible from one open end of the pole. A tool actuates the connector on the push button, allowing the button to be pulled, pressed, and rotated into the desired position. One connector includes a threaded tool, allowing the user to pull the button out of the telescoping pole. The connector, like the threads inside a hole in an adapter that holds the push button, allows the button assembly to be removed.

[0006] The utility model of the telescopic triangular maneuvering stick with double reinforcement (VTT) that is claimed for protection, has the first round element, made of fiberglass tube impregnated with epoxy resin and foam Polyurethane processed directly in the pultrusion process, ensuring uniformity, mechanical strength, and dielectric strength. This first element features a specially designed universal fitting head with geometry and material compatible with heavy mechanical stress, bonded with adhesive / resin specifically designed for this application. The universal head features a steel wing screw for attaching universal tools. From the second section / element onward, the VTT features triangular sections, featuring reinforcement rings for the upper windows of the coupling pins, which increases its mechanical strength while significantly reducing flexibility, enabling tasks to be performed in situations requiring greater mechanical stress. Also from the second element onward, the VTT features reinforcement rings now bonded internally to the lower windows.These lower rings reinforce the window of the engagement pins / buttons and, together with the specific and appropriate geometry of the pins / buttons, protect the ATV elements from stresses caused by the action of the actuation spring, providing greater strength and resistance, and extending their service life. The reinforcement rings, along with the pin / button, were specially designed to prevent breakage in the area of ​​the element window, a point of quality improvement where product users complain to manufacturers.

[0007] VTT also features a cushioning system on each element for retracting the maneuvering stick. This system is exclusive to the product being protected, designed to provide smooth operation, reduce impact, and extend the tool's lifespan. Description of Figures:

[0008] Figure 1 shows assembly details of the first element of the double-reinforced telescopic triangular maneuvering pole (VTT), which is the most important element of the product.

[0009] Figure 2 shows the assembly of the telescopic triangular maneuvering pole with double reinforcement.

[0010] Figure 3 presents the model of the triangular elements (4), (13), (15), (17), (19), (21), (23) of the VTT.

[0011] Figures 4 and 5 show the rubbers for cushioning all the elements of the VTT during its retraction, being a smaller rubber with 025mm (8) for elements 1 (1), 2 (4), 3 (13) and 4 (15) and a larger rubber with 041mm (40) for elements 5 (17), 6 (19), 7 (21). Utility Model Description

[0012] The utility model describes a double-reinforced telescopic triangular hot stick designed for interventions in electrical installations, along with tools for operating circuit breakers. It also allows for the coupling of operating heads and a series of universal tools for a wide range of applications, while maintaining the necessary safety distance and insulation. It is designed for use in situations requiring greater mechanical effort, such as opening and closing fuses and blade switches, removing and inserting fuse cartridges, operating voltage detectors, and changing light bulbs, among others.

[0013] The telescopic maneuvering stick with double reinforcement is composed of the element tube (1) containing inside the polyurethane foam (2) processed together with the polymer reinforced with fiberglass (3) and with epoxy-based resin; processed directly in the pultrusion, guaranteeing uniformity, mechanical resistance and dielectric strength.

[0014] The first element (1) has a head with universal fitting (9) designed with geometry and material compatible with heavy mechanical stresses, glued with adhesive / resin suitable for application, that is, the tube of the element (1) fits into the triangular element (4), with the support (5) responsible for ensuring that the tube of the round element (1) does not rotate freely in the second element (4), being glued inside the round tube (1) and with triangular geometry at its base suitable for fitting into the triangular tube (4); the locking pin / button (6) is also mounted on the support (5) together with the spring (7); at the base of the support (5) the damping rubber (8) is fitted, responsible for softening the retraction of the tube of the round element (1) where the universal head (9) is glued, which has a thread for adaptation. butterfly screw (10) which is responsible for fixing the universal tools, together with the recesses and projections arranged on it.

[0015] The pin / button (6) contains larger upper and lower tabs, sized for better performance and contact with the tube window.

[0016] The other elements of the telescopic maneuvering stick (4), (13), (15), (17), (19), (21) and (23), are manufactured in triangular fiberglass tubes impregnated with epoxy ester resin, with a hollow core to promote the telescopic function, that is, they have sections with dimensions suitable for fitting together, in order to receive the previous profile inside, in a gradual manner, being element 2 (4), element 3 (13), element 4 (15), element 5 (17), element 6 (19), element 7 (21) and element 8 (23).

[0017] Each of the elements has a reinforcement glued externally to its upper windows, manufactured with the same profile of the same dimension as the subsequent elements, being the upper reinforcement of element 2 (11), upper reinforcement of element 3 (12), upper reinforcement of element 4 (14), upper reinforcement of element 5 (16), upper reinforcement of element 6 (18), upper reinforcement of element 7 (20) and upper reinforcement of element 8 (22).

[0018] Each of the elements has a reinforcement glued internally in its lower windows, manufactured with the same profile and the same dimensions as the previous elements, being the lower reinforcement of element 2 (26), lower reinforcement of element 3 (27), lower reinforcement of element 4 (28), lower reinforcement of element 5 (29), lower reinforcement of element 6 (30), lower reinforcement of element 7 (31) and lower reinforcement of element 8 (32).

[0019] The transition from the first round element (1) to the second triangular element (4) is made through a support (5) designed to prevent rotation of the first element (1), in addition to ensuring free movement of extension and retraction of the VTT, maintaining mechanical resistance. All sections / elements are composed of pins / buttons for engagement and locking, made of reinforced engineering plastic, with geometry designed to avoid the application of mechanical stress from the drive spring on the walls of the sections. These pins / buttons (6) are assembled together with the supports (33), (34), (35), (36), (37), (38) and (39) and spring (7), glued with adhesive / resin compatible with the required forces, so that when activated / pressed it allows free retraction and extension of the VTT and when released, it allows locking of the VTT in working positions at different heights.

[0020] All sections / elements have a rubber shock absorber attached to their base to ensure smooth tool retraction. The last section (base) (23) has a pair of rubber rings (41) used for support on flat surfaces, preventing contact, scratches, and wear on the section when in a horizontal position resting on the ground, in addition to a base for protection and cushioning when in a vertical operating position. The telescopic triangular hot stick fully meets the requirements of ASTM F1826 and IEC62193 CAT. I and II.

[0021] The high-visibility tip section, called element (1), features a polyurethane foam core made from a single body and reinforced with fiberglass and epoxy resin, ensuring complete insulation, even under the most severe humidity conditions. It features a universal fitting head (9), a steel butterfly screw (10), reinforced plastic coupling pins / buttons (6), a rubber shock absorber (8), and reinforced elements to ensure mechanical strength and extend the product's lifespan.

[0022] The triangular shape doesn't require twisting or turning to lock each section, making opening and closing quick and simple. Using a VTT eliminates the need for ladders or platforms, allowing tasks to be performed directly from the ground.

[0023] The VTT pole's modular system allows you to use only the number of sections required for each job, depending on the desired final working height. By pressing the locking buttons, unnecessary lower sections are released and removed, making the telescopic pole lighter and more comfortable for performing tasks. The VTT can also be customized to any size desired by the user, directly from the factory.

[0024] Figure 1 shows the assembly details of the first element of the double-reinforced telescopic triangular maneuvering stick (VTT), the most important element of the product. This element has a high-visibility color to visually stand out. The tube of the element (1) is manufactured using a pultrusion process that differs from that of the other elements. The polyurethane foam (2) is processed together with the fiberglass-reinforced polymer (3) and epoxy resin. This ensures a solid and unique part with high mechanical strength and, above all, high dielectric strength. The foam incorporated into this pultrusion process ensures the uniformity of the first element (1), raising the quality level of the VTT.The first element (1) has a diameter of 27.5 mm, developed in this dimension exclusively to adapt to the VTT element (4), which is triangular, without circumferential clearances and maintaining an adequate adjustment for tool use. The support (5) is responsible for preventing the first round element (1) from rotating freely in the second element (4), being glued inside the round tube (1) and with a triangular geometry at its base suitable for fitting into the triangular tube (4), as shown in section CC. This support (5) also mounts the locking pin / button (6) together with the spring (7). The pin / button (6) was developed with larger upper and lower tabs, sized for better performance and contact with the tube window. This provides greater resistance, avoiding breakage problems, already reported in the prior art.The damping rubber (8) is fitted to the base of the support (5), which softens the retraction of the first round element (1), increasing the tool's useful life. The universal head (9) is glued to the top of the round element (1). It is made of metal alloy and has a geometry designed to withstand the heavy mechanical stresses to which the tool is exposed, as detailed in section AA. This geometry allows the use of metallic materials with different mechanical properties without loss of strength and performance. The head (9) has a thread for adapting a wing screw (10), which is responsible for securing the universal tools, together with the recesses and projections arranged therein.

[0025] In the assembly of the telescopic triangular maneuvering stick with double reinforcement, shown in Figure 2, the first element (1) is round and 0.275 mm, manufactured in pultruded tube with polyurethane foam incorporated directly into the compound reinforced with fiberglass and epoxy resin. The other elements of the VTT have triangular geometry and are pultruded with a fiberglass compound impregnated with epoxy resin (vindica ester). These elements have a hollow core, which allows the VTT to be retracted for packaging and transport. These elements have sections with dimensions suitable for fitting together, in order to receive the previous profile inside, in a gradual manner, being element 2 (4), element 3 (13), element 4 (15), element 5 (17), element 6 (19), element 7 (21) and element 8 (23).Each of the triangular elements of this ATV has a reinforcement glued externally to its upper windows, manufactured with the same profile and the same dimension as the subsequent elements, being the upper reinforcement of element 2 (11), upper reinforcement of element 3 (12), upper reinforcement of element 4 (14), upper reinforcement of element 5 (16), upper reinforcement of element 6 (18), upper reinforcement of element 7 (20) and upper reinforcement of element 8 (22). These reinforcements are 70mm long and reinforce the elements, increasing their mechanical resistance to bending, enabling the execution of tasks in situations that require greater mechanical effort, in addition to meeting the normative requirements of IEC62193 CAT. II.

[0026] In addition to the reinforcements glued to the upper windows of each element, Figure 3 also shows reinforcements glued internally to the lower windows, manufactured with the same profile and dimensions as the previous elements, being the lower reinforcement of element 2 (26), lower reinforcement of element 3 (27), lower reinforcement of element 4 (28), lower reinforcement of element 5 (29), lower reinforcement of element 6 (30), lower reinforcement of element 7 (31) and lower reinforcement of element 8 (32). These reinforcements are 50 mm long and reinforce the elements, increasing the resistance of the windows to the action of the spring, preventing breakage of the element in this region and increasing the useful life of the tool. For each triangular element, there is a support for the pin / engaging button (6), with the support for the element 2 (33), support for element 3 (34), support for element 4 (35), support for element 5 (36), support for element 6 (37), support for element 7 (38), support for element 8 (39). These supports are glued to the elements after being assembled with the pin / button (6) and the spring (7), so that when activated / pressed it allows free retraction and extension of the VTT and when released, it allows locking of the VTT in working positions at different heights.

[0027] The last element of the ATV, shown in figures 4 and 5, has a rubber base (25) to protect the tool during use, which the user rests on the ground during operation. This last element also has a sticker (24) with information on use, maintenance, and contraindications. The last element of the ATV also has, positioned at the top and bottom of the element, a rubber ring (41), which protects the ATV when it is in the resting position close to the ground, preventing damage to its surface.

Claims

CLAIMS 1. TELESCOPIC TRIANGULAR MANEUVERING ROD (VTT), characterized by comprising the element tube (1) containing inside it the polyurethane foam (2) processed together with the fiberglass reinforced polymer (3) and with epoxy-based resin; the element tube (1) fits into the triangular element (4), with the support (5) being responsible for ensuring that the round element tube (1) does not rotate freely in the second element (4), being glued inside the round tube (1) and with triangular geometry at its base suitable for fitting into the triangular tube (4); the locking pin / button (6) is also mounted on the support (5) together with the spring (7); at the base of the support (5) the damping rubber (8) is fitted, responsible for softening the retraction of the tube of the round element (1) where the universal head (9) is glued, which has a thread for adapting a butterfly screw (10) which is responsible for fixing the universal tools, together with the recesses and projections arranged on it.

2. TELESCOPIC TRIANGULAR MANEUVERING ROD (VTT), according to claim 1, characterized in that the tube of the element (1) is manufactured by a pultrusion process.

3. TELESCOPIC TRIANGULAR MANEUVERING ROD (VTT), according to claim 1, characterized in that the pin / button (6) contains larger upper and lower tabs, sized for better performance and contact with the tube window.

4. TELESCOPIC TRIANGULAR MANEUVERING ROD, according to claim 1, characterized by element 2 (4), element 3 (13), element 4 (15), element 5 (17), element 6 (19), element 7 (21) and element 8 (23), having triangular geometry and being pultruded with fiberglass compound impregnated with epoxy ester resin based on vindica, having a hollow core and sections with dimensions suitable for fitting together, in order to receive the previous profile inside, in a gradual manner, being element 2 (4), element 3 (13), element 4 (15), element 5 (17), element 6 (19), element 7 (21) and element 8 (23).

5. TELESCOPIC TRIANGULAR MANEUVERING ROD, according to claim 1, characterized in that each of the elements has a glued reinforcement externally in their upper windows, manufactured with the same profile of the same dimension as the subsequent elements, being the upper reinforcement of element 2 (11), upper reinforcement of element 3 (12), upper reinforcement of element 4 (14), upper reinforcement of element 5 (16), upper reinforcement of element 6 (18), upper reinforcement of element 7 (20) and upper reinforcement of element 8 (22).

6. TELESCOPIC TRIANGULAR MANEUVERING ROD, according to claim 1, characterized in that each of the elements has a reinforcement glued internally in its lower windows, manufactured with the same profile and of the same dimension as the previous elements, being the lower reinforcement of element 2 (26), lower reinforcement of element 3 (27), lower reinforcement of element 4 (28), lower reinforcement of element 5 (29), lower reinforcement of element 6 (30), lower reinforcement of element 7 (31) and lower reinforcement of element 8 (32).

7. TELESCOPIC TRIANGULAR MANEUVERING ROD, according to claim 1, characterized in that each triangular element has a support for the coupling pin / button (6), the support being for element 2 (33), support for element 3 (34), support for element 4 (35), support for element 5 (36), support for element 6 (37), support for element 7 (38), support for element 8 (39), these supports being glued to the elements after being assembled with the pin / button (6) and the spring (7), so that when activated / pressed it allows free retraction and extension of the VTT and when released, it allows locking of the VTT in working positions at different heights.

8. TELESCOPIC TRIANGULAR MANEUVERING ROD, according to claim 1, characterized by having a rubber base (25), a rubber ring (41) positioned in the upper part and in the lower part of the last element.

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