CN212659493U - Shell structure of multi-pole air switch - Google Patents

Abstract

The utility model relates to a multipolar air switch's shell structure, including the casing main part, characteristics are: the casing main part comprises the housing unit of a plurality of quantity, and housing unit's front side is equipped with handle wheel and handle on the bench, and handle wheel below is equipped with the pilot lamp, and the upper and lower both ends of housing unit front side are equipped with the mounting hole, are equipped with the lantern ring outside the mounting hole, and the top and the bottom of casing main part all are equipped with wiring port and baffle to the top still is equipped with the installation buckle, and the side of casing main part is equipped with through-hole and knob, installs fastening rivet in the through-hole. The utility model discloses there is the lantern ring in the outside design of mounting hole, can avoid the casing to fracture when the wiring is screwed up to be equipped with the security of baffle when improving the wiring between the wiring port, have advantages such as structural design is reasonable, the use is nimble convenient, the security is high.

Description

Shell structure of multi-pole air switch

Technical Field

The utility model belongs to the technical field of low-voltage apparatus, concretely relates to multipolar number air switch's shell structure.

Background

An air switch, also called a miniature circuit breaker, is a protective electrical appliance which plays an important role in low-voltage distribution networks and power systems and can automatically cut off a circuit when the circuit is overloaded or short-circuited. When the air switch is used, the proper pole number needs to be selected according to the voltage and the load of the use environment, the pole number is also the inlet wire number controlled by the air switch, generally, the air switch with the single pole number can be used for controlling the electric appliance with low power, and the air switch with three or more poles is generally used for controlling the electric appliance with three phases of electricity so as to ensure the use safety. The air switch of multipolar number can comprise the air switch casing unit of a plurality of quantity, because the air switch of multipolar number has a plurality of inlet wire and outlet wire, the problem that different lines contacted each other probably takes place during the wiring, has certain potential safety hazard, in addition, current air switch of multipolar number still has on the structural design of casing such as the mounting hole is easy to split when screwing up fastening screw, wholly loads and unloads defects such as inconvenient, still waits to further perfect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable, use nimble convenience, the high multipolar air switch's of security shell structure.

The utility model provides a technical scheme that above-mentioned problem adopted is: this multipolar air switch's shell structure, including the casing main part, its characterized in that: the shell body is composed of a plurality of shell units, the middle part of the front side of each shell unit is protruded forwards to form a boss, handle wheels are mounted on the bosses and are connected into a whole through a handle, indicator lamps are arranged below the handle wheels and are divided into red and green working states, mounting holes for fastening screws are arranged at the upper end and the lower end of the front side of each shell body, U-shaped lantern rings are arranged on the outer sides of the mounting holes, wiring ports and baffles are arranged at the top and the bottom of each shell body, each wiring port comprises a wire inlet and a wiring board positioning notch, the baffles are positioned between adjacent wiring ports and are positioned on splicing wires of the shell units, mounting buckles are further arranged at the tops of the shell units, U-shaped elastic pieces are arranged in the middle parts of the mounting buckles, the lower parts of the mounting buckles are pointed bottoms, and the pointed bottoms are positioned at the top parts of grooves at the rear sides of the shell units, and a through hole is formed in the side surface of the shell unit, and a fastening rivet is installed in the through hole. When air switch in-service use, the user can switch over air switch's operating condition through stirring the handle on the boss of casing unit side, air switch also can be when taking place the short circuit or transshipping automatic tripping operation realization circuit cut off, the pilot lamp of handle below shows green lamp at air switch normal during operation, take place to become the red light after the tripping operation, the user of being convenient for in time discovers the problem, the mounting hole is used for screwing up fastening screw, firmly compress tightly the external connection on the wiring port, at the tightening in-process, traditional casing is owing to be formed by controlling two shells along the central line concatenation at mounting hole department, when the screw is screwed up excessively, strut the casing easily and lead to the fracture, and the utility model discloses be equipped with the U-shaped lantern ring outside the mounting hole, can entangle two shells about with, effectively avoid the emergence of fracture phenomenon. The baffle can separate the connecting wire that will adjoin the line port, reduces the risk of the mutual short circuit of electric wire, improves the safety in utilization, and the installation buckle is in the compression state that makes progress behind air switch installs in the distribution box, can provide decurrent clamp force, also can realize air switch's quick dismantlement through pushing down the installation buckle.

Preferably, the housing unit of the present invention is made of engineering plastic PA 66. PA66 belongs to polyamide material, has higher melting point, and can maintain higher strength and rigidity at high temperature.

Preferably, the side of the handle of the utility model is processed with the antislip strip along the length direction. The anti-skidding nature of handle can be improved to the antislip strip of handle side, and the user of being convenient for manually switches air switch's operating condition.

Preferably, the baffle of the utility model is a ladder-shaped plate with wide bottom and narrow upper part, and the side of the shell unit is provided with a fixing groove corresponding to the shape of the baffle. The stepped baffle can be automatically fixed in the fixing groove on the side surface of the shell unit when the two shell units are combined, and the structure is simple and convenient.

Preferably, the side of the housing unit of the present invention is further provided with a knob. When a plurality of shell units are combined for use, the screw driver is used for unscrewing the knob, the interiors of the shell units can be mutually communicated, and in addition, the shell units and the leakage point protector can be combined and spliced into the leakage point protection device for use through the knob.

Preferably, the side middle part of the shell unit of the utility model is carved with the operation instruction. The side is carved with a brief operational instruction which can play a certain guiding role when the user uses the device.

Preferably, the utility model discloses a fastening rivet is the brass pipe, and fastening rivet's both ends form the turn-ups through the punching press. After all the shell units are aligned and attached, the fastening rivets are sleeved into the through holes, and then the two ends of the fastening rivets are flattened by a press, so that the shell units are connected into a whole.

Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses use high strength, high melting point PA66 as the shell material, be equipped with the lantern ring in the outside of mounting hole, effectively avoid arousing the casing fracture when screwing up fastening screw to innovatively increased baffle structure between the wiring port, separated each wiring port, reduced the risk of the mutual short circuit of joint of each connecting wire.

Drawings

In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic front view structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic top view of an embodiment of the present invention.

Fig. 3 is a schematic front view of the housing unit according to the embodiment of the present invention.

Fig. 4 is a schematic view of a baffle structure according to an embodiment of the present invention.

Fig. 5 is a schematic view of an installation buckle structure according to an embodiment of the present invention.

Description of reference numerals: 1. a housing main body; 2. a housing unit; 3. a handle wheel; 4. a handle; 5. an indicator light; 6. mounting holes; 7. a collar; 8. a wiring port; 9. a baffle plate; 10. mounting a buckle; 11. a wire inlet; 12. a recess; 13. a spring plate; 14. a pointed bottom; 15. a through hole; 16. fastening a rivet; 17. an anti-slip groove; 18. fixing grooves; 19. a knob; 20. and (5) operation explanation.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

Referring to fig. 1 to 5, the housing structure of the multi-pole air switch of the present embodiment includes a housing body 1.

The shell body 1 of the embodiment is made of PA66 engineering plastic, and the material belongs to polyamide materials, has a high melting point, and can maintain high strength and rigidity at high temperature.

The casing main part 1 of this embodiment is formed by the combination of the casing unit 2 of a plurality of quantity, casing unit 2's front side middle part is protruding forward and is formed the boss, handle wheel 3 is installed on the upper portion of boss, each handle wheel 3 all links to each other with same handle 4, the side of handle 4 has antislip strip 17 along length direction processing, handle wheel 3's below still is equipped with pilot lamp 5, pilot lamp 5 divide into two kinds of operating condition of red and green, when air switch normal work, pilot lamp 5 shows green light, when taking place the tripping operation because of short circuit or overload, handle 4 switches the position under the inner structure effect of switch, pilot lamp 5 becomes red light, remind the user in time to discover the problem, the user is after solving the problem, can manually pull handle 4 back the normal position, antislip strip 17's existence has improved handle 4 antiskid nature, be convenient for the user to operate.

Both ends all are equipped with fastening screw's mounting hole 6 about the front side of casing main part 1 of this embodiment, and traditional air switch forms along the central line concatenation by controlling two shells in mounting hole 6 department, when the screw is screwed up excessively, struts the casing easily and leads to the fracture, and this embodiment is equipped with the lantern ring 7 of U-shaped in the outside of mounting hole 6, and lantern ring 7 can control two outer casings and open to both sides now in inside, thereby effectively avoid the emergence of fracture phenomenon.

The upper and lower both sides face of casing main part 1 of this embodiment all is equipped with wiring port 8 and baffle 9, wiring port 8 includes inlet 11 and fixes a position the wiring board and fixed notch 12, baffle 9 is installed between adjacent wiring port 8, and on being in housing element 2's concatenation line, baffle 9 is the bottom wide, the narrow stairstepping board in upper portion, housing element 2's side is equipped with the fixed slot 18 that corresponds with baffle 9 shape, thereby can be when housing element 2 splices each other, fix baffle 9 automatically. Baffle 9 is used for separating the connecting wire that will adjoin the line port, reduces the risk of the mutual short circuit of electric wire, security when improving the wiring.

The top of housing unit 2 of this embodiment still is equipped with installation buckle 10, the middle part position U-shaped shell fragment 13 of installation buckle 10, the lower part is sharp end 14, the middle part of installation buckle 10 is fixed in housing unit 2, sharp end 14 is located the recess top of housing unit 2 rear side, installation buckle 10 is in air switch installation back in the distribution box, shell fragment 13 is in the compression state that makes progress, can provide decurrent clamp force, also can realize air switch's quick dismantlement through pushing down installation buckle 10. The side of the shell unit 2 is provided with a knob 19, when a plurality of shell units 2 are combined for use, the knob 19 can be unscrewed by a screwdriver, so that the interiors of the shell units 2 are communicated with each other, and in addition, the shell units 2 and the leakage point protector can be combined and spliced into the leakage point protection device for use through the knob 19. The middle part of the side surface of the shell unit 2 is also carved with simple operation instructions which can play a certain guiding role when the user uses the shell unit.

The housing unit 2 of the present embodiment is fixedly connected to each other by a through hole 15 located at a side surface and a fastening rivet 16 installed in the through hole 15, the fastening rivet 16 is a brass tube, and both ends of the brass tube are formed into flanges after being punched. During splicing, the shell units 2 are aligned and attached, the fastening rivets 16 are sleeved into the through holes 15, and the two ends of the fastening rivets 16 are flattened by a press machine to realize fixation.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims (7)

1. The utility model provides a multipolar air switch's shell structure, includes casing main part (1), its characterized in that: the casing body (1) comprises a plurality of casing units (2), the front middle part of each casing unit (2) is protruded forwards to form a boss, a handle wheel (3) is installed on the boss, each handle wheel (3) is connected into a whole through a handle (4), an indicator lamp (5) is arranged below each handle wheel (3), the indicator lamp (5) is divided into red and green working states, mounting holes (6) of fastening screws are arranged at the upper end and the lower end of the front side of the casing body (1), a U-shaped lantern ring (7) is arranged on the outer side of each mounting hole (6), wiring ports (8) and baffle plates (9) are arranged at the top and the bottom of the casing body (1), each wiring port (8) comprises a wire inlet (11) and a notch (12) for positioning a wiring board, each baffle plate (9) is positioned between two adjacent wiring ports (8) and is positioned on a splicing wire of each casing unit (2), the top of the shell unit (2) is further provided with an installation buckle (10), the middle of the installation buckle (10) is provided with a U-shaped elastic sheet (13), the lower portion of the installation buckle (10) is a pointed bottom (14), the pointed bottom (14) is located at the top of a groove in the rear side of the shell unit (2), a through hole (15) is formed in the side face of the shell unit (2), and a fastening rivet (16) is installed in the through hole (15).

2. The housing structure of a multipole air switch according to claim 1, characterized in that: the housing unit (2) is made of an engineering plastic PA 66.

3. The housing structure of a multipole air switch according to claim 1, characterized in that: the side surface of the handle (4) is provided with an anti-slip strip (17) along the length direction.

4. The housing structure of a multipole air switch according to claim 1, characterized in that: the baffle (9) is a step-shaped plate with a wide bottom and a narrow upper part, and the side surface of the shell unit (2) is provided with a fixing groove (18) corresponding to the shape of the baffle (9).

5. The housing structure of a multipole air switch according to claim 1, characterized in that: the side surface of the shell unit (2) is also provided with a knob (19).

6. The housing structure of a multipole air switch according to claim 1, characterized in that: the middle of the side surface of the shell unit (2) is carved with an operation instruction (20).

7. The housing structure of a multipole air switch according to claim 1, characterized in that: the fastening rivet (16) is a brass tube, and flanges are formed at two ends of the fastening rivet (16) through punching.

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