CN2283922Y - Rotary circuit fuse block - Google Patents

Abstract

The utility model relates to an improvement based on a patent technology of a rotary circuit fuse box device, which is realized by orderly combination of a fuse wheel (1), wire pressing wheels (2, 3, 4, 5), a fuse coil (6), a fuse (10), a fuse guide ring (9), etc., wherein, the fuse which is clamped between metal wire pressing wheels (4, 5) can play a safety role by means that the fuse (10) is wound and pressed in a groove (14) of the fuse wheel (1) through wire pressing wheels (2, 3, 4, 5), and metal wire pressing wheels (4, 5) are connected into power. Once the fuse is fused, the fuse can be pressed again between metal wire pressing wheels (4, 5) by rotating a fuse wheel rotary knob (16) to switch the circuit into conduction. The utility model has the advantages of simple structure and convenient operation.

Description

Rotary circuit insurance

The utility model relates to a kind of fuse apparatus.

Patented technology " rotary-type circuit fuse box device " by the up-to-date announcement of Patent Office of the People's Republic of China, the patent No. 94224342.0, be by insulation crust, fuse, neon tube, safety wheel, the silk pressing wheel, compositions such as danger silk sheet spring, though have unique creativeness and novelty, but because its fuse coil and safety wheel are apart to be installed on two axles, so, it has increased the safety box inner space, simultaneously also increased the cost of producing this product, in addition, two metal silk pressing wheels of this fuse box device are mounted on the metal shaft of two sheet springs, the sheet spring is mounted on the safety box base plate, if fuse is thicker, by safety wheel and metal silk pressing wheel the time, the latch phenomenon might appear, so this patented technology awaits further perfect.

The purpose of this utility model provides a kind of novel fuse box device, and it is further perfect to " rotary-type circuit fuse box device ", and it can reduce the volume of safety box, reduces manufacturing cost, and the arming wheel is taken turns the latch phenomenon with the metal silk pressing.

In order to solve above-mentioned task, the scheme that the utility model adopts is: the safety wheel that can sway is installed on the safety box base plate, on the axle of safety wheel, a rotating coil that stores a certain amount of fuse is installed again, on the safety box base plate on safety wheel and fuse coil next door, a fuse guide ring is installed, safety wheel is formed by pulley and gear coaxial combination, periphery along safety wheel on base plate is taken turns at a distance of at least four silk pressings littler than safety wheel diameter that can sway are installed, the gear of silk pressing wheel is meshed with the gear of safety wheel, and no toothed portion suits mutually with the pulley periphery of safety wheel.If, two silk pressing wheels that safety wheel is adjacent are made of metal material, it is installed in respectively on the metal shaft of two metal connecting rod one ends, the other end of connecting rod is installed in respectively on the metal shaft of two other silk pressing wheel, between axle and connecting rod, install spring, make the tight safety wheel of metal silk pressing wheel load, from the fuse coil, extract one section fuse then out, pass the fuse guide ring, by certain direction, not twining in the pulley groove that is pressed in safety wheel by silk pressing wheel successively, when the diaxon place in circuit of metal silk pressing wheel, the fuse between the metal silk pressing wheel just plays safety effect not closedly.In case fuse is fused, as long as the knob of installing on the rotation safety wheel, safety wheel just is transported to contact with it between the metal silk pressing wheel to fuse, and circuit is conducting again, has just reached former purpose of design.

Above-mentioned safeties, most of parts can use insulating material such as bakelite, plastics to make, and it is simple in structure, and is easy to use, and cost is not high.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the safeties structural representations.

Fig. 2 is that Fig. 1 is along A--A line cutaway view.

As shown in Figure 1 and Figure 2, fuse coil (6) is installed on the axle of safety wheel (1), and can rotate, safety wheel (1), fuse guide ring (9) and silk pressing wheel (2,3) are used for carrying fuse (10) into metal silk pressing wheel (4,5), and metal silk pressing wheel (4,5) is separately fixed on the metal shaft of metal connecting rod (17, a 18) end.Remove silk sheet spring (7) and be used for removing the fusible link that sticks on the safety wheel (1), prevent from molten fuse of having no progeny or cross head fuse to contact with the input fuse.Fuse guide ring (9) is used for changing the direction of fuse (10), and guarantee insurance silk (10) enters in the groove of safety wheel (1).Safety wheel (1) is to be made with high-temperature insulation material, and its a peripheral left side partly is gear (13), and right half is pulley (14), and groove depth should be less than the fuse diameter.The gear parts of the gear parts of safety wheel (1) and silk pressing wheel (2,3,4,5) is meshing with each other (13) no toothed portion tightly adjoint (14).For prevent fuse (10) in rotation by metal silk pressing wheel (4,5) block, metal silk pressing wheel (4,5) is to be fixed on the metal connecting rod (17,18), metal connecting rod (17,18) is separately fixed on the metal shaft of silk pressing wheel (2,3) and can rotates, if between axle and connecting rod, load onto spring, connecting rod just has elasticity, silk pressing wheel (4,5) both can compress fuse (10) like this, can not block fuse again.Ratchet (11) is the device that is used for preventing safety wheel (1) reversing with ratchet (12).The periphery of silk pressing wheel (2,3) no toothed portion also can be made of rubber, and purpose is that fuse is produced stronger pulling force and carrying capacity, prevents that fuse from skidding.In case fuse is fused, as long as rotate safety wheel knob (16) gently, fuse (10) will rotate with safety wheel (1), is pressed between the silk pressing wheel (4,5), and circuit is conducting again, plays safety effect.The residual silk of fusing falls in the safety box below the safety wheel (enough spaces are left in the safety box below) under the effect that removes silk sheet spring (7).If being installed, an indicator light (8) just can play that to distinguish be to have a power failure or insure the effect that is fused between the metal shaft of silk pressing wheel (2,3).

Claims (2)

1, a kind of by insulating material housing, fuse, indicator light, safety wheel, the silk pressing wheel, remove silk sheet spring, the rotary circuit insurance that the fuse guide ring is formed, it is characterized in that: it is to go up at safety box base plate (15) safety wheel that can sway (1) and fuse coil (6) are installed, safety wheel (1) is formed by pulley and gear coaxial combination, periphery along safety wheel (1) on base plate takes turns (2 at a distance of at least four little silk pressings of ratio safety wheel (1) diameter that can sway are installed, 3) and (4,5), silk pressing wheel (2,3,4,5) gear be meshed with the gear of safety wheel (13), no toothed portion suits (14) mutually with the pulley periphery, silk pressing wheel (4,5) make of metal material, they are installed in two rubber-like metal connecting rods (17 respectively, 18) on the metal shaft of an end, the two ends in addition of connecting rod are installed in respectively on the base plate (15).

2, according to claim 1 described rotary circuit insurance, it is characterized in that: this device also is equipped with ratchet (12) and the ratchet (11) that prevents safety wheel (1) reversing.