CN210535595U

CN210535595U - Sealed dirt-proof low-voltage circuit breaker

Info

Publication number: CN210535595U
Application number: CN201921821275.6U
Authority: CN
Inventors: 杨庆; 余长忠
Original assignee: Yancheng Heming Electric Manufacturing Co Ltd
Current assignee: Yancheng Heming Electric Manufacturing Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-05-15
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a sealed dirt-proof low voltage circuit breaker, including base, lid and bolt, the base front side is provided with encloses the fender, and encloses the fender outside and be provided with the double-screw bolt, and the double-screw bolt rear end is fixed at the base front end simultaneously, the lid sets up and is enclosing the fender outside, and the lid setting is in base the place ahead, the bolt runs through the lid and is connected with the double-screw bolt, and the inside spout of having seted up of lid, the inside double-screw bolt that is provided with of spout simultaneously, the lid front side runs through there is the opening, and the inside rotary switch that is provided with. This sealed dirt-proof low voltage circuit breaker is provided with and encloses fender, elastic clamping cover and lock nut, rotates the bolt, and the bolt makes the lid fix and encloses the fender outside with the double-screw bolt cooperation, and the cable gets into through rubber sleeve and threading pipe and encloses the fender inside, rotates lock nut, and lock nut extrusion elastic clamping cover shrink, and elastic rubber sleeve extrudees rubber sleeve, makes rubber sleeve and cable laminating inseparable, reduces the space of each junction, improves low voltage circuit breaker's dustproof effect.

Description

Sealed dirt-proof low-voltage circuit breaker

Technical Field

The utility model relates to a low voltage circuit breaker technical field specifically is a sealed dirt-proof low voltage circuit breaker.

Background

The low-voltage circuit breaker is used as a low-voltage electrical appliance, and is mainly used for controlling a circuit switch and an important device for quickly closing a circuit under an abnormal circuit.

The sealed dustproof effect of current low voltage circuit breaker is poor, especially, a large amount of spaces are left with line connection department to casing junction and threading pipe, when dusty environment uses, the dust gets into low voltage circuit breaker inside through the space easily, influence low voltage circuit breaker's operating condition, can cause phenomenons such as short circuit to take place when serious, and current circuit breaker is not equipped with heat abstractor, low voltage circuit breaker compact structure, the inner space is little, continuous operation time internal temperature lasts and increases, it is ageing to last high temperature leads to low voltage circuit breaker internals easily, reduce the life of equipment, to above-mentioned problem, need improve current equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed dirt-proof low voltage circuit breaker, it is poor with the sealed dustproof effect of the current low voltage circuit breaker who proposes in solving above-mentioned background art, especially, a large amount of spaces are left with line connection department to casing junction department and threading pipe, when dusty environment uses, the dust gets into inside the low voltage circuit breaker easily through the space, influence the operating condition of low voltage circuit breaker, can cause phenomenons such as short circuit to take place when serious, and current circuit breaker is not equipped with heat abstractor, low voltage circuit breaker compact structure, inner space is little, inside temperature lasts and increases during continuous operation, it is ageing to last high temperature to lead to the low voltage circuit breaker internals easily, reduce the life's of equipment problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sealed dirt-proof low-voltage circuit breaker, includes base, lid and bolt, the base front side is provided with encloses the fender, and encloses the fender outside and be provided with the double-screw bolt, and the double-screw bolt rear end is fixed at the base front end simultaneously, the lid sets up and is enclosing the fender outside, and the lid sets up in base the place ahead, the bolt runs through the lid and is connected with the double-screw bolt, and the inside spout of having seted up of lid, the inside double-screw bolt that is provided with of spout simultaneously, the lid front side runs through there is the opening, and the inside rotary switch that is provided with of opening, enclose and keep off the bottom and seted up the threading pipe, and the threading pipe lower extreme is fixed with the elastic jacket, the inside rubber sleeve that is provided with of elastic jacket, the threading pipe outside is provided with lock nut.

Preferably, enclose fender outer end laminating lid inner wall, and lid rear end laminating base front end, the lid is sliding connection with the connected mode who encloses the fender simultaneously.

Preferably, the bolt is connected with the bolt in a threaded manner, and the bolt is connected with the sliding groove in a sliding manner.

Preferably, the outer end of the rotary switch is attached to the inner wall of the opening, and the rotary switch is connected with the box cover in a rotating mode.

Preferably, the diameter of the uppermost end of the elastic jacket is consistent with the diameter of the lowermost end of the threading pipe, and the diameter of the upper end of the elastic jacket is smaller than that of the lower end of the elastic jacket.

Preferably, the locking nut is in threaded connection with the elastic jacket, and the locking nut is in threaded connection with the threading pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the low-voltage circuit breaker is sealed and dustproof,

(1) the cable-free low-voltage circuit breaker is provided with an enclosure, an elastic jacket and a locking nut, wherein the inner wall of a box cover is attached to the outer end of the enclosure, a bolt is rotated, the bolt is matched with a stud to fix the box cover outside the enclosure, a cable enters the enclosure through a rubber sleeve and a threading pipe, the locking nut is rotated to extrude the elastic jacket to shrink, the elastic rubber sleeve extrudes the rubber sleeve, the rubber sleeve is tightly attached to the cable, gaps at each connecting part are reduced, and the dustproof effect of the low-voltage circuit breaker is improved;

(2) be provided with heat conduction potsherd and fin, the laminating of heat conduction potsherd sets up and is enclosing the fender inner wall, and the heat conduction potsherd rear end runs through the base simultaneously and is connected with the fin, encloses the heat in the fender and conducts to the fin through the heat conduction potsherd, and the fin increase is with the area of contact of air, and the heat is dispersed rapidly, is convenient for continuously reduce the inside temperature of low-voltage circuit breaker, improve equipment's life.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the present invention;

FIG. 2 is a rear view of the lid of the present invention;

FIG. 3 is a schematic diagram of the left side view section explosion structure of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

fig. 5 is a schematic top view of the cross-sectional structure of the present invention.

In the figure: 1. the heat-conducting box comprises a base, 2, a fence, 3, a stud, 4, a box cover, 5, a bolt, 6, a sliding groove, 7, an opening, 8, a rotary switch, 9, a threading pipe, 10, an elastic jacket, 11, a rubber sleeve, 12, a locking nut, 13, a heat-conducting ceramic sheet, 14 and a radiating fin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a sealed and dustproof low-voltage circuit breaker is disclosed, as shown in figure 1, figure 2 and figure 3, a surrounding baffle 2 is arranged on the front side of a base 1, a stud 3 is arranged on the outer side of the surrounding baffle 2, the rear end of the stud 3 is fixed at the front end of the base 1, the outer end of the surrounding baffle 2 is attached to the inner wall of a box cover 2, the rear end of the box cover 4 is attached to the front end of the base 1, the connection mode of the box cover 4 and the surrounding baffle 2 is sliding connection, the box cover 4 slides backwards along the surrounding baffle 2 until the rear end of the box cover 4 is attached to the front end of the base 1, the gap between the box cover 4 and the surrounding baffle 2 as well as between the box cover 4 and the base 1 is reduced, the box cover 4 is arranged on the outer side of the surrounding baffle 2, the box cover 4 is arranged in front of the base 1, a bolt 5 penetrates through the box cover 4 to be connected with the stud 3, a sliding connection mode of, rotating bolt 5, bolt 5 and double-screw bolt 3 cooperation make lid 4 fixed firm, and 4 front sides of lid run through there is opening 7, and opening 7 inside is provided with

rotary switch

8, 8 outer ends laminating opening 7 inner walls of rotary switch, and rotary switch 8 is connected for rotating with lid 4's connected mode, is convenient for rotate and uses rotary switch 8, and the laminating sets up the reduction space simultaneously.

As shown in fig. 3, 4 and 5, the bottom of the enclosure 2 is provided with a threading pipe 9, the lower end of the threading pipe 9 is fixed with an elastic jacket 10, the diameter of the uppermost end of the elastic jacket 10 is consistent with the diameter of the lowermost end of the threading pipe 9, the diameter of the upper end of the elastic jacket 10 is smaller than the diameter of the lower end of the elastic jacket 10, so that a locking nut 12 can move along the elastic jacket 10 and the threading pipe 9, a rubber sleeve 11 is arranged inside the elastic jacket 10, a locking nut 12 is arranged outside the threading pipe 9, the locking nut 12 is in threaded connection with the elastic jacket 10, the locking nut 12 is in threaded connection with the threading pipe 9, the locking nut 12 moves to the outside of the elastic jacket 10 through the threading pipe 9, the threaded connection is convenient for the locking nut 12 to be fixed outside the elastic jacket 10, a heat-conducting ceramic plate 13 is arranged inside the enclosure 2, and the, while the heat sink 14 is disposed at the rear side of the base 1.

The working principle is as follows: when the sealed dustproof low-voltage circuit breaker is used, a cable firstly passes through a rubber sleeve 11 and a threading pipe 9 to enter the interior of an enclosure 2, a lock nut 12 is rotated, the lock nut 12 moves downwards along the threading pipe 9 to enter the outer side of an elastic jacket 10, the lock nut 12 presses the elastic jacket 10 to contract, the elastic jacket 10 presses the rubber sleeve 11 to contract so that the rubber sleeve 11 is tightly attached to the cable, a box cover 4 slides backwards along the enclosure 2 until the rear end of the box cover 4 is attached to the front end of a base 1, a stud 3 slides along a sliding groove 6 simultaneously, a bolt 5 is rotated, the bolt 5 is matched with the stud 3 to fix the box cover 4, a rotary switch 8 is attached to an opening 7, gaps among all parts are reduced, the dustproof effect of the low-voltage circuit breaker is improved, after the low-voltage circuit breaker is electrified for a period of time, the parts in the enclosure 2 generate heat, and the heat is conducted, the heat sink 14 increases the contact area with the air to facilitate rapid cooling, which completes the entire work and is not described in detail in this specification, which is well known to those skilled in the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a sealed dirt-proof low-voltage circuit breaker, includes base (1), lid (4) and bolt (5), its characterized in that: the novel wire drawing machine is characterized in that a surrounding baffle (2) is arranged on the front side of a base (1), a stud (3) is arranged on the outer side of the surrounding baffle (2), the rear end of the stud (3) is fixed to the front end of the base (1), a box cover (4) is arranged on the outer side of the surrounding baffle (2), the box cover (4) is arranged in front of the base (1), a bolt (5) penetrates through the box cover (4) to be connected with the stud (3), a sliding groove (6) is formed in the box cover (4), the stud (3) is arranged in the sliding groove (6), an opening (7) penetrates through the front side of the box cover (4), a rotary switch (8) is arranged in the opening (7), a wire drawing pipe (9) is arranged at the bottom of the surrounding baffle (2), an elastic clamping sleeve (10) is fixed to the lower end of the wire drawing pipe (9), a rubber sleeve (11) is arranged in the elastic clamping sleeve (, enclose fender (2) inside and be provided with heat conduction ceramic wafer (13), and heat conduction ceramic wafer (13) run through base (1) and are connected with fin (14), and fin (14) set up in base (1) rear side simultaneously.

2. A sealed dust-tight low-voltage circuit breaker according to claim 1, characterized in that: enclose fender (2) outer end laminating lid (4) inner wall, and lid (4) rear end laminating base (1) front end, lid (4) are sliding connection with the connected mode who encloses fender (2) simultaneously.

3. A sealed dust-tight low-voltage circuit breaker according to claim 1, characterized in that: the bolt (5) and the stud (3) are connected in a threaded manner, and the stud (3) and the sliding groove (6) are connected in a sliding manner.

4. A sealed dust-tight low-voltage circuit breaker according to claim 1, characterized in that: the outer end of the rotary switch (8) is attached to the inner wall of the opening (7), and the rotary switch (8) is connected with the box cover (4) in a rotating mode.

5. A sealed dust-tight low-voltage circuit breaker according to claim 1, characterized in that: the diameter of the uppermost end of the elastic jacket (10) is consistent with the diameter of the lowermost end of the threading pipe (9), and the diameter of the upper end of the elastic jacket (10) is smaller than that of the lower end of the elastic jacket (10).

6. A sealed dust-tight low-voltage circuit breaker according to claim 1, characterized in that: the locking nut (12) is in threaded connection with the elastic jacket (10), and the locking nut (12) is in threaded connection with the threading pipe (9).