Air switch protection device
Technical Field
The utility model relates to a power switch protection technical field specifically is an air switch protection device.
Background
An air switch, also called an air circuit breaker, is a kind of circuit breaker, it is a kind of switch that will break automatically as long as the current exceeds the rated current in the circuit, the air switch is a very important electric apparatus in low-voltage distribution network and electric power drive system, it integrates control and many protective functions, except can finish contacting and breaking the circuit, still can protect short circuit, serious overload and undervoltage, etc. that the circuit or electrical equipment takes place, the air switch is generally used together with protective device in the course of using, but when the practical air switch protective device is used at present, although the air switch can be prevented from being damaged by external force, dust can not be prevented from contacting with the air switch, and the oxidation of the air switch connection part can not be prevented, the protection strength of the air switch is insufficient, and the service life of the air switch is not prolonged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air switch protection device to when solving the present use air switch protection device that proposes in the above-mentioned background art and using, although can prevent external damage bad air switch, nevertheless can't prevent that inside dust and air switch from contacting, and can't prevent that the air switch junction from taking place the oxidation, not enough to air switch's protective strength, be unfavorable for increasing air switch's life problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an air switch protection device, includes the box, the lower surface of box from left to right is equipped with four line components of sealing in proper order, the top of box is equipped with anti-oxidation mechanism, the equal rigid coupling in four corners of box has the semicircle piece, open the front surface of semicircle piece has the through-hole, the inside of box is equipped with the guide rail, the screw has been inserted to the front surface left and right sides of guide rail, the screw runs through the guide rail and links to each other with the box screw thread, the left side of box is equipped with the case lid, the case lid passes through the hinge and rotates with the box and link to each other, the front surface four corners rigid coupling of case lid has sealed rubber ring, the front surface rigid coupling of case lid has the transparent window, the equal rigid coupling in right surface front side of box and the left surface front side of case lid has the flitch, and the left.
Preferably, the wire sealing assembly comprises a conical cylinder, a nut, a sleeve ring, a rubber conical cylinder and a conical nut, four the conical cylinder is sequentially arranged on the lower surface of the box body from left to right, one part of the conical cylinder penetrates through the box body, the conical cylinder is in clearance fit with the box body, the top end of the outer wall of the conical cylinder is connected with the nut, the nut is tightly abutted to the bottom end of the inner part of the box body, the sleeve ring is fixedly sleeved on the bottom end of the center of the outer wall of the conical cylinder, the rubber ring is fixedly connected to the upper surface of the sleeve ring and tightly abutted to the box body, the conical cylinder is fixedly connected to the bottom end of the inner wall of the conical cylinder, and the bottom end thread of.
Preferably, the inner diameter of the rubber cone is less than 1-2mm relative to the outer diameter of the connecting wire.
Preferably, the anti-oxidation mechanism comprises a bent pipe, an air pumping cylinder, a support block, a disc, an air hole, a compression spring, a gasket, a plug block and a circular ring, the elbow is positioned on the right side of the upper surface of the box body, one part of the elbow penetrates through the box body, the elbow is fixedly connected with the box body, the left side of the elbow is in threaded connection with an air pump, the top end of the outer wall of the elbow is fixedly connected with a support block, the support block is fixedly connected with the box body, the bottom end of the center of the inner wall of the elbow is fixedly connected with a disc, the center of the lower surface of the disc is provided with an air hole, the air hole penetrates through the disc, the periphery of the lower surface of the disc is fixedly connected with a compression spring, the lower surface of the compression spring is fixedly connected with a gasket, the gasket is in clearance fit with the elbow, the lower surface rigid coupling of gasket has the chock, the outer wall of chock has cup jointed the ring, the ring offsets tightly with the chock, the ring is fixed continuous with the elbow.
Preferably, the distance between the outer wall of the compression spring and the inner wall of the elbow is 2-5 mm.
Preferably, the compression spring, the gasket and the central point of the chock block are all located on the same horizontal vertical line.
Compared with the prior art, the beneficial effects of the utility model are that: this air switch protection device, in-process using, through the box, the case lid, the rubber sealing ring, the cooperation between seal line subassembly and the anti-oxidation mechanism, install box and inner wall, then installing air switch and guide rail, it is tight to offset rubber sealing ring and box, with the inside gaseous emission of box, can effectually prevent that the dust from entering into the box inside and contacting with air switch, and then do benefit to air switch's protection, and can stop the air switch junction and take place the oxidation, increase air switch's that can be great life, practicality is strengthened.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a connection structure of the case and the oxidation preventing mechanism of fig. 1;
FIG. 3 is a schematic view of the connection of the elbow, the plunger and the compression spring of FIG. 2;
fig. 4 is a schematic view of a connection structure of the box body and the wire sealing assembly in fig. 1.
In the figure: 1. the anti-oxidation device comprises a box body, 2, a wire sealing assembly, 201, a conical cylinder, 202, a nut, 203, a lantern ring, 204, a rubber ring, 205, a rubber conical cylinder, 206, a conical screw cap, 3, an anti-oxidation mechanism, 301, a bent pipe, 302, an air extracting cylinder, 303, a supporting block, 304, a disc, 305, an air hole, 306, a compression spring, 307, a gasket, 308, a plug block, 309, a circular ring, 4, a semicircular sheet, 5, a through hole, 6, a guide rail, 7, a screw, 8, a box cover, 9, a hinge, 10, a sealing rubber ring, 11, a transparent window, 12, a pasting plate, 13, a round hole, 14 and a threaded hole.
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. 1-4, the present invention provides a technical solution: an air switch protection device comprises a box body 1, four wire sealing assemblies 2 are sequentially arranged on the lower surface of the box body 1 from left to right, an anti-oxidation mechanism 3 is arranged at the top end of the box body 1, semicircular sheets 4 are fixedly connected to four corners of the box body 1, through holes 5 are formed in the front surfaces of the semicircular sheets 4, a guide rail 6 is arranged inside the box body 1, the guide rail 6 is a C45 guide rail, an air switch can be conveniently installed inside the box body 1, screws 7 are inserted into the left side and the right side of the front surface of the guide rail 6, the screws 7 penetrate through the guide rail 6 to be connected with the box body 1 in a threaded manner, the screws 7 are abutted against the guide rail 6, a box cover 8 is arranged on the left side of the box body 1, the box cover 8 is rotatably connected with the box body 1 through hinges 9, sealing rubber rings 10 are fixedly connected to four corners of the front surface of the box cover 8, the sealing rubber rings, the inside of box 1 is observed to the external personnel of being convenient for, and the equal rigid coupling of the right surface front side of box 1 and the left surface front side of case lid 8 has flitch 12, and open at the front surface center of left side flitch 12 has round hole 13, and open at the front surface center of right side flitch 12 has screw hole 14.
The wire sealing assembly 2 comprises a conical cylinder 201, a nut 202, a lantern ring 203, a rubber ring 204, a rubber conical cylinder 205 and a conical screw cap 206, wherein the four conical cylinders 201 are sequentially arranged on the lower surface of the box body 1 from left to right, the conical cylinder 201 is made of high-quality ABS engineering plastics and has certain toughness, a part of the conical cylinder 201 penetrates through the box body 1, the conical cylinder 201 is in clearance fit with the box body 1, the nut 202 is connected with the top end of the outer wall of the conical cylinder 201 in a threaded manner, the nut 202 is tightly abutted to the inner bottom end of the box body 1, the lantern ring 203 is fixedly sleeved at the central bottom end of the outer wall of the conical cylinder 201, the rubber ring 204 is fixedly connected to the upper surface of the lantern ring 203, the rubber ring 204 is made of rubber and has strong toughness, the rubber ring 204 is tightly abutted to the box body 1, the rubber conical cylinder 205 is fixedly connected to the, the bottom end of the outer wall of the conical cylinder 201 is connected with a conical nut 206 through threads, and the inner diameter of the rubber conical cylinder 205 is smaller than 1-2mm relative to the outer diameter of the connecting lead, so that the rubber conical cylinder 205 can be tightly abutted against the outer wall of the connecting lead.
The anti-oxidation mechanism 3 comprises an elbow 301, an air pumping cylinder 302, a support block 303, a disc 304, air holes 305, a compression spring 306, a gasket 307, a plug block 308 and a ring 309, the elbow 301 is positioned at the right side of the upper surface of the box body 1, a part of the elbow 301 penetrates through the box body 1, the elbow 301 is fixedly connected with the box body 1, the left side of the elbow 301 is in threaded connection with the air pumping cylinder 302, the air pumping cylinder 302 is a manual air pumping cylinder with the model of AY285, the top end of the outer wall of the elbow 301 is fixedly connected with the support block 303, the support block 303 is fixedly connected with the box body 1, the disc 304 is fixedly connected at the bottom end of the center of the inner wall of the elbow 301, the air holes 305 are formed in the center of the lower surface of the disc 304, the air holes 305 penetrate through the disc 304, the compression spring 306 is fixedly connected around the lower surface of the disc 304, the coefficient of the compression spring 306 is 1-, chock 308 is made for the rubber material, stronger toughness has, the outer wall of chock 308 has cup jointed ring 309, ring 309 offsets tightly with chock 308, ring 309 links to each other with return bend 301 is fixed, the distance between compression spring 306 outer wall to the return bend 301 inner wall is 2-5mm, can make compression spring 306 compress or kick-back in the inside of return bend 301, compression spring 306, the central point of gasket 307 and chock 308 all is located same horizontal vertical line, compression spring 306 can be to gasket 307 and the even atress of chock 308.
When the air switch protection device is used, firstly, four rivets are respectively used for penetrating through four through holes 5 to fix a box body 1 on the inner wall, then the air switch is connected with a guide rail 6 in the box body 1, the guide rail 6 is a C45 guide rail, then a connecting lead wire connected with the air switch sequentially penetrates through a conical nut 206, a rubber conical cylinder 205 and a conical cylinder 201 to be connected with the air switch, then the conical nut 206 is rotated clockwise to enable the conical nut 206 to be abutted against the conical cylinder 201, further the rubber conical cylinder 205 can be abutted against the connecting lead wire, then the box cover 8 is abutted against the box body 1, then a bolt penetrates through a left attachment plate 12 through a round hole 13 to enable the bolt to be in threaded connection with a threaded hole 14, the two attachment plates 12 are abutted against, further, a sealing rubber ring 10 can be abutted against the box body 1, and further the box body 1 can be sealed, can effectually prevent that inside dust from entering into 1 inside and air switch of box and contacting, and then do benefit to the protection to air switch, then carry out the screw thread on the left side with air pump bowl 302 and return bend 301 and link to each other, then use air pump bowl 302 to carry out the suction with the inside gas of box 1, the gas content of 1 inside reduction box that can be great, can stop the air switch junction and take place the oxidation, increase air switch's that can be great life, then separating air pump bowl 302 and return bend 301, air pump bowl 302 is stored by regional electrician person of charge, be convenient for use next time.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.