CN105758536B - The temperature measurement and alarm device of electrical apparatus interstar connection folder - Google Patents

Abstract

The invention discloses a temperature measuring and alarming device for a connecting clip of electrical equipment, which comprises a base and an upper cover. A through hole is arranged in the middle of the base, and a screw thread matching the bolt is arranged on the inner wall of the lower part of the through hole of the base. The upper cover is provided with a On the upper part of the base, the lower edge of the side wall of the upper cover coincides with the upper plate surface of the base. The upper edge of the sleeve is connected and fixed with the upper cover by screws, and a spring is set on the outside of the sliding sleeve between the upper cover and the base. The fusible alloy gasket is connected and fixed with the lower end of the sliding column by screws, and the fusible alloy gasket The peripheral edge of the sheet is carried on the lower port edge of the sliding sleeve, and the upper plate surface of the base is provided with a rotation warning device, and the rotation warning device is located in the cavity of the upper cover. The invention has the advantages of simple structure, convenient use, small size, firm and reliable installation, and can be installed on the bolts of the connecting clips of electrical equipment to ensure the normal operation of the equipment.

Description

Temperature measurement and alarm device for wiring clips of electrical equipment

technical field

The invention relates to a warning device when the wiring clip of electrical equipment is heated, in particular to a temperature measuring and alarming device for the wiring clip of the electrical equipment, which is installed on the bolt of the wiring clip of the electrical equipment and used to judge whether the equipment joint is heated.

Background technique

Heating of the wiring clips of the electrical equipment in the substation is a common fault. When the wiring clips are seriously heated, the power should be cut off immediately, which seriously affects the reliability and safety of the electrical equipment operation, especially in summer and winter when the power load is large. , Electrical equipment wiring clips are more prone to heating faults. The terminal clamps currently used in electrical equipment are all provided with bolts for fastening, and the terminal clamps are fixedly connected to the wires firmly. The connection between the bolt clamp and the wire has a small actual contact surface, which is greatly affected by the uniformity of the bolt crimping. This kind of clamp is usually placed outdoors, and the operating conditions are relatively harsh; at the same time, the ACSR and the equipment The connection gap of the cable clamp is relatively large. In areas with a lot of wind, frost, rain and snow, strong sunshine, and large temperature difference between day and night, it is greatly affected by the external environment. Coupled with the effect of electromagnetic fields, the oxidation and scaling of the contact surface are accelerated, resulting in The connector is hot. As we all know: fusible alloy, also known as mold alloy, is an alloy made of elements such as bismuth, lead, tin and cadmium, with a melting point of 47-200 ° C, and the melting point can be adjusted according to needs. With narrow range, sensitive response and short melting time, it has been widely used in electrical appliances, steam, fire protection, fire alarm and other fields, providing a new basis for testing the heating of electrical equipment joints.

Contents of the invention

The purpose of the present invention is to provide a simple structure, easy to use, installed on the bolts of the electrical equipment connection clips, use fusible alloy as the temperature test material, and judge whether the equipment joint is hot by observing the changes of the whole device. The temperature measurement and alarm device of the terminal clip.

In order to achieve the above purpose, the technical solution adopted in the present invention is: the temperature measurement and alarm device of the electrical equipment wiring clip includes a base and an upper cover, a through hole is provided in the middle of the base, and a The bolts are matched with threads, the upper cover is set on the upper part of the base, and the lower edge of the side wall of the upper cover coincides with the upper plate surface of the base. There is a sliding column, the upper end of the sliding column passes through the upper edge of the sliding sleeve and is fixed with the upper cover through screws, and a spring is set on the outside of the sliding sleeve between the upper cover and the base, and the fusible alloy gasket is connected with the screw through the screw. The lower end of the sliding column is connected and fixed, and the peripheral edge of the fusible alloy gasket is placed on the lower port edge of the sliding sleeve. The upper plate of the base is provided with a rotation warning device, and the rotation warning device is located in the cavity of the upper cover.

The rotation warning device is composed of a rotating blade, a limit post, a positioning pin, a coil spring and a fixed block. The middle part of the rotating blade is provided with an arc-shaped chute, and the rotating blade is rotated and arranged on the upper surface of the base through the positioning pin. , the limit column is fixed on the upper plate of the base through the arc-shaped chute, the coil spring is sleeved on the positioning pin, the inner end of the coil spring is fixed on the positioning pin, and the outer end of the coil spring is fixed on the rotating blade On the fixed block, the lower part of the inner side wall of the upper cover blocks the outer side of the free end of the rotating blade.

There are 2-3 rotation warning devices, which are evenly arranged on the upper surface of the base.

The upper port of the sliding sleeve is provided with an inwardly protruding rim, and the lower end of the sliding post is provided with an valgus corresponding to the inverting rim of the sliding sleeve.

The surface of the rotating vane of the rotating warning device is painted with red or other bright colors.

The invention has the beneficial effects of simple structure, convenient use, small size, firm and reliable installation, installed on the bolts of the electrical equipment connection clips, using fusible alloy as the temperature test material, and judging the equipment joints by observing the changes of the whole device Whether it is hot, so that it can be dealt with in time to ensure the normal operation of the equipment.

Description of drawings

Fig. 1 is a schematic sectional view of the structure of the present invention.

Fig. 2 is a schematic sectional view of the structure of the present invention along Fig. 1A-A.

Fig. 3 is a schematic diagram of the use state of the fusible alloy gasket of the present invention after melting.

Detailed ways

Make the present invention with reference to Fig. 1, Fig. 2. The temperature measurement and alarm device of the electrical equipment wiring clip includes a base 1 and an upper cover 2, the middle part of the base 1 is provided with a through hole, and the inner wall of the lower part of the through hole of the base 1 is provided with a screw thread suitable for the bolt, so that the base 1 is installed at the end of the bolt of the electrical equipment connection clamp, the upper cover 2 is set on the upper part of the base 1, and the lower end of the side wall of the upper cover 2 coincides with the upper plate surface of the base 1, and its feature is: the through hole of the base 1 The upper part is fixed with a sliding sleeve 3, and a sliding column 5 is arranged in the cavity of the sliding sleeve 3. The upper end of the sliding column 5 passes through the upper edge of the sliding sleeve 3 and is connected and fixed with the upper cover 2 through the screw 7. Between the upper cover 2 and the base 1 There is a spring 4 sleeved on the outside of the sliding sleeve 3. The fusible alloy gasket 6 is connected and fixed with the lower end of the sliding column 5 through screws. The peripheral edge of the fusible alloy gasket 6 is placed on the lower port edge of the sliding sleeve 3. Above, the upper surface of the base 1 is provided with a rotation warning device 8, and the rotation warning device 8 is located in the cavity of the upper cover 2.

The rotation warning device 8 is composed of a rotating blade 81, a limit post 83, a positioning pin 84, a coil spring 85 and a fixed block 86. The middle part of the rotating blade 81 is provided with an arc-shaped chute 82, and the rotating blade 81 passes through the positioning pin. 84 is rotated and arranged on the upper plate surface of the base 1, the limit column 83 passes through the arc-shaped chute 82 and is fixed on the upper plate surface of the base 1, the coil spring 85 is sleeved on the positioning pin 84, and the inner end of the coil spring 85 The head is fixed on the positioning pin 84, the outer end of the coil spring 85 is fixed on the fixed block 86 of the rotating blade 81, and the inner side wall bottom of the loam cake 2 blocks the outside of the rotating blade 81 free ends.

There are 2-3 rotation warning devices 8, which are evenly arranged on the upper surface of the base 1.

The upper port portion of the sliding sleeve 3 is provided with an inwardly protruding edge, and the lower end of the sliding column 5 is provided with an outer edge corresponding to the inner edge of the sliding sleeve 3, so that the spring Under the action of 4, when the sliding column 5 slides upwards, due to the blocking of the inward-turning edge and the external-turning edge, the sliding column 5 will not completely break away from the sliding sleeve 3, which is conducive to reinstalling the fusible alloy gasket 6 for reuse.

The surface of the rotating blade 81 of the rotating warning device 8 is painted with red or other bright colors to facilitate identification by the operator.

When using the present invention, the base 1 is installed on the end of the bolt of the electrical equipment binding clip, and the end of the bolt is pressed against the fusible alloy gasket 6. When the electrical equipment binding clip heats up, the heat will pass to the On the fusible alloy gasket 6, after reaching the melting temperature of the fusible alloy gasket 6, the fusible alloy gasket 6 melts, and the sliding post 5 slides upward under the action of the spring 4, so that the upper cover 2 bounces upward, The lower end of the side wall of the loam cake 2 no longer blocks the rotating blade 81, and due to the effect of the coil spring 85, the rotating blade 81 rotates, so that the free end of the rotating blade 81 stretches out of the loam cake 2 and the outside of the base 1, as shown in Figure 3, due to The rotating blade 81 is provided with a bright warning color that is convenient for identification. When the operator is patrolling, he will know all the way, which improves the inspection efficiency. The blade 81 is restricted after turning to a certain angle; after the wiring clip is repaired and replaced, the rotating blade 81 is pressed back into the cavity of the upper cover 2, and the fusible alloy gasket 6 is replaced again, and the base 1 is reinstalled on the The end of the bolt is ready for reuse.

Claims (4)

1. The temperature measurement and alarm device for the wiring clip of electrical equipment, including the base (1) and the upper cover (2). Compatible threads, the upper cover (2) is set on the upper part of the base (1), and the lower end of the side wall of the upper cover (2) coincides with the upper plate surface of the base (1). It is characterized in that: the base (1) The upper part of the through hole is fixed with a sliding sleeve (3), and a sliding column (5) is provided in the cavity of the sliding sleeve (3), and the upper end of the sliding column (5) passes through the upper edge of the sliding sleeve (3) and passes through the screw (7) It is connected and fixed with the upper cover (2). Between the upper cover (2) and the base (1), there is a spring (4) sleeved on the outside of the sliding sleeve (3). The fusible alloy gasket (6) is connected with the The lower end of the sliding column (5) is connected and fixed, the peripheral edge of the fusible alloy gasket (6) is placed on the lower port edge of the sliding sleeve (3), and the upper plate of the base (1) is provided with a rotation warning device (8), the rotation warning device (8) is located in the cavity of the upper cover (2); The rotation warning device (8) is composed of a rotating blade (81), a limit post (83), a positioning pin (84), a coil spring (85) and a fixed block (86). The middle part of the rotating blade (81) There is an arc-shaped chute (82), the rotating blade (81) is rotated and set on the upper surface of the base (1) through the positioning pin (84), and the limit post (83) is fixed through the arc-shaped chute (82) On the upper plate of the base (1), the coil spring (85) is sheathed on the positioning pin (84), the inner end of the coil spring (85) is fixed on the positioning pin (84), and the coil spring (85) The outer end is fixed on the fixed block (86) of the rotating blade (81), and the lower part of the inner wall of the loam cake (2) blocks the outer side of the free end of the rotating blade (81). 2. The temperature measuring and alarming device for electrical equipment wiring clips according to claim 1, characterized in that: said rotating warning devices (8) are provided with 2-3 pieces, evenly arranged on the upper surface of the base (1) superior. 3. The temperature measuring and alarming device for the wiring clip of electrical equipment according to claim 1, characterized in that: the upper port of the sliding sleeve (3) is provided with an inwardly protruding edge, and the sliding sleeve (3) The lower end of the column (5) is provided with an valgus edge corresponding to the valgus edge of the sliding sleeve (3). 4. The temperature measuring and alarming device for electrical equipment junction clips according to claim 1, characterized in that: the surface of the rotating blade (81) of the rotating warning device (8) is painted red.