CN218730462U

CN218730462U - Knife switch for circuit control

Info

Publication number: CN218730462U
Application number: CN202222821887.3U
Authority: CN
Inventors: 刘旭峰; 杨旭生
Original assignee: Xian Technological University
Current assignee: Xian Technological University
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-24
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a knife switch for circuit control, including knife switch base and insulating fixing base, be located the insulating fixing base of knife switch base upper end, be located fixed block A on the outer wall of both ends about knife switch base, all be provided with fixed block B, two on the outer wall of both ends about the insulating fixing base fixed block B is located two fixed block A's upper end respectively, both ends all increase through around this knife switch base for circuit control's knife switch have a neotype wiring protection device, can use wiring protection device to carry out the secondary fixation to the wiring end rear side of electric wire after the wiring, and can carry out the bending of certain radian to the electric wire at fixed in-process, then can play the cushioning effect to wiring department like this, when the electric wire receives the powerful pulling of external force, the electric wire bending of wiring end rear side can release to can avoid pulling the power direct action to lead to the wiring department and cause the condition that the electric wire breaks away from the electric wire jack to take place.

Description

Knife switch for circuit control

Technical Field

The utility model belongs to the technical field of electric power is relevant, concretely relates to knife switch for circuit control.

Background

The knife switch is also called knife switch or isolating switch, it is a kind of low voltage electric appliance which is the simplest and widely used in manual electric appliance, the knife switch has the following functions, firstly, isolating the power supply to ensure the safety of circuit and equipment maintenance, or as the load below the rated current is not frequently connected and disconnected, secondly, disconnecting the load, such as not frequently connecting and disconnecting the low voltage circuit with small capacity or directly starting the small capacity motor, thirdly, when the knife switch is at the disconnection position, it can be obviously observed, and can ensure the safety of the circuit maintainer.

Through retrieval, a patent document with the application number of CN201822079739.2 discloses a high-safety electric power cabinet knife switch, which comprises a base, wherein at least two groups of electrifying mechanisms are symmetrically arranged on the surface of the base, each group of electrifying mechanism consists of two oppositely arranged conductive plates, the cross sections of the two conductive plates are in an X-shaped structure, fastening bolts are arranged at the bottom ends of the conductive plates and fixed on the surface of the base, and side grooves are symmetrically formed in the opposite surfaces of the two conductive plates; through the return spring of design, can fix once more on the current conducting plate self carries out fixed spacing basis to the plug-in strip, make fixed effect better, and the binding plate of cooperation design, further fix with the plug-in strip, thereby guarantee the stability that the later stage was used, through the built-in guard plate of design, improvement that can be great the utility model discloses a security, when phenomenon such as short circuit takes place for inside, can shield the spark through built-in guard plate, but the plug-in strip switch mainly is control circuit circular telegram condition and uses, so need be connected the plug-in strip with insert the electric wire and connect out the electric wire, the electric wire is fixed through the binding screw after the wiring jack is inside, when the electric wire that inserts or connect out is dragged by external force, the electric wire then can be easily from the wiring jack produce not hard up and drop, thereby can cause the plug-in strip can not normal use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plug-in strip switch for circuit control to when the electric wire that provides in solving above-mentioned background art and insert or connect out is dragged by external force, the electric wire then can be easily produced not hard up and drop from the wiring jack, thereby can cause the problem that the plug-in strip can not normal use.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a knife switch for circuit control, includes knife switch base and insulating fixing base, is located the insulating fixing base of knife switch base upper end, is located knife switch base and controls fixed block A on the both ends outer wall, all be provided with fixed block B, two on the both ends outer wall about the insulating fixing base fixed block B is located two fixed block A's upper end respectively, knife switch base is close to and all runs through about both sides rear end outer wall is inside has the wiring jack, insulating fixing base is close to the vertical inside of four corners department and all has embedded the wiring screw, all be provided with wiring protection device on the both ends outer wall around the knife switch base.

Preferably, wiring protection device includes insulating connecting rod, arc recess, insulating wire clip, locking screw and wiring protection shield, all be provided with insulating connecting rod, two on the rear end outer wall of both sides about the plug-in strip base the rear end of insulating connecting rod is connected with the wiring protection shield, the wiring protection shield all is provided with inside sunken arc recess, two on being close to left and right sides upper end outer wall the arc recess upper end all is provided with insulating wire clip, two the locking screw has all been run through to insulating wire clip is close to the vertical inside of the left and right sides, four locking screw's lower extreme all runs through in the inside reservation screw of wiring protection shield.

Preferably, the upper end of the middle section of the insulating fixing seat is provided with a rubber cover, switch sliding grooves are formed in the outer walls of the left side and the right side of the center of the rubber cover in a penetrating mode, metal blades are formed in the switch sliding grooves in a penetrating mode, and ceramic handles are arranged at the upper ends of the metal blades.

Preferably, the insulating fixing seat and the rubber cover are made of flame-retardant heat-resistant plastics in an integrated forming mode, and the cross section of the rubber cover is semicircular.

Preferably, the cross-sectional shapes and the area sizes of the fixed block A and the fixed block B are the same, and the fixed block A and the fixed block B are fixedly connected through two screws.

Preferably, the ceramic handle is made of ceramic materials, the metal blade is made of pure copper metal, and the outer walls of the left end and the right end of the metal blade are not in contact with the inner walls of the left end and the right end of the switch sliding groove.

Preferably, the insulating wire clamping sheet and the wiring protection plate are both made of insulating hard materials, and threads on the outer wall of the screw rod of the locking screw are meshed with threads on the inner wall of the reserved screw hole in the wiring protection plate.

Compared with the prior art, the utility model provides a knife switch for circuit control possesses following beneficial effect:

the utility model discloses a both ends all increase around this a knife switch base for circuit control's knife switch has a neotype wiring protection device, insert in two inside wiring jacks of knife switch base rear end and after locking through the binding screw when the outside electric wire, can use wiring protection device to carry out the secondary to the wiring end rear side of electric wire fixed this moment, and can carry out the bending of certain radian to the electric wire at fixed in-process, can then play the cushioning effect to wiring department like this, when the electric wire receives the powerful pulling of external force, the electric wire bending department of wiring end rear side can release, thereby can avoid pulling the power and directly using the wiring department and cause the electric wire to break away from the condition emergence of going out from the electric wire jack, thereby can increase the fastness and the stability of wiring.

Drawings

Fig. 1 is a schematic side view of a knife switch for circuit control according to the present invention.

Fig. 2 is a schematic top plan view of a knife switch for circuit control according to the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the wiring protection device of the present invention.

In the figure: 1. a knife switch base; 2. an insulating fixed seat; 3. a fixed block A; 4. a fixed block B; 5. A rubber cover; 6. a wiring screw; 7. a wiring jack; 8. a wiring protection device; 9. opening and closing the chute; 10. a metal blade; 11. a ceramic handle; 12. an insulating connecting rod; 13. an arc-shaped groove; 14. An insulating wire clamping sheet; 15. locking screws; 16. wiring protection board.

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.

The utility model provides a knife switch for circuit control as shown in fig. 1-3, including knife switch base 1 and insulating fixing base 2, insulating fixing base 2 is installed in knife switch base 1's upper end, all be provided with fixed block A3 about knife switch base 1 on the both ends outer wall, all be provided with fixed block B4 about insulating fixing base 2 on the both ends outer wall, two fixed block B4 are located two fixed block A3's upper end respectively, knife switch base 1 is close to about both sides rear end outer wall inside all run through there is wiring jack 7, insulating fixing base 2 is close to the vertical inside of four corners department and has embedded wiring screw 6, all be provided with wiring protection device 8 on the both ends outer wall around knife switch base 1, fixed block A3 and fixed block B4's cross sectional shape and area size are all the same, fixed block A3 and fixed block B4 are through two screw fixed connection, insulating fixing base 2 and rubber cover 5 adopt fire-retardant heat-resistant plastics and make through the integrated into one piece mode, rubber cover 5 cross sectional shape is semi-circular, insulating fixing base 2 and rubber cover 5 can enough play insulating effect, can play fire-retardant effect again, when avoiding the short circuit to appear easily, the condition that causes the electric spark then the conflagration can increase like this the life of knife switch.

As shown in fig. 1 and 3, the wiring protection device 8 includes an insulating connecting rod 12, arc-shaped grooves 13, insulating wire clamping sheets 14, locking screws 15 and a wiring protection plate 16, the insulating connecting rod 12 is disposed on the outer wall of the rear end of the left side and the rear end of the right side of the knife switch base 1, the rear ends of the two insulating connecting rods 12 are connected with the wiring protection plate 16, the wiring protection plate 16 is provided with the arc-shaped grooves 13 which are recessed inwards on the outer wall of the upper end of the left side and the outer wall of the upper end of the right side, the insulating wire clamping sheets 14 are disposed on the upper ends of the two arc-shaped grooves 13, the locking screws 15 are penetrated through the vertical inner parts of the two insulating wire clamping sheets 14 close to the left side and the right side, the lower ends of the four locking screws 15 are penetrated through the reserved screw holes inside the wiring protection plate 16, the insulating wire clamping sheet 14 and the wiring protection plate 16 are both made of insulating hard materials, threads on the outer wall of a screw rod of the locking screw 15 are mutually engaged with threads on the inner wall of a reserved screw hole in the wiring protection plate 16, after the insulation is removed from the zero wire terminals and the zero wire terminals are inserted into the two terminal insertion holes 7 inside the rear end of the blade base 1, the terminals of the zero-fire wire are fixed by the binding screws 6, at this time, the parts of the zero-fire wire close to the front side are respectively positioned in the two arc-shaped grooves 13 inside the outer wall of the upper end of the binding protection plate 16, at this time, two insulating wire clamping sheets 14 are respectively arranged at the upper ends of the zero-fire wires in the two arc-shaped grooves 13, and the two insulating wire clamping sheets 14 are screwed down by two locking screws 15, so that the electric wire can be secondarily fixed, when being pulled by external force, the two insulating wire clamping sheets 14 can firmly clamp the zero-fire wire in the arc-shaped groove 13 respectively, therefore, the pulling force can be resisted, and the situation that the pulling force acts on the electric wire in the wiring jack 7 to easily cause the electric wire to fall out of the wiring jack 7 is avoided.

As shown in fig. 1 and 2, 2 interlude upper ends of insulating fixing base are provided with the jiao gai 5, it has switch spout 9 all to run through inside the left and right sides outer wall of jiao gai 5 center department, two switch spout 9 are inside all upwards to run through there is metal blade 10, the upper end of two metal blade 10 is provided with ceramic handle 11, ceramic handle 11 all adopts ceramic material to make, metal blade 10 adopts pure copper metal to make, both ends inner wall contact about metal blade 10 both ends outer wall do not control with switch spout 9, because the on-off state of control plug-in strip needs to promote metal blade 10 from top to bottom through ceramic handle 11, and ceramic handle 11 of ceramic material then can play insulating effect, avoid appearing the condition emergence of electrocuteeing when operating the plug-in strip.

The utility model discloses the theory of operation: when the knife switch is used, firstly, a plurality of screws for connecting two groups of fixed blocks A3 and B4 need to be taken out, then an insulating fixed seat 2 fixed at the upper end of a knife switch base 1 is taken out, then the installation position of the knife switch needs to be determined, the knife switch base 1 is attached to the installation position, the knife switch base 1 is installed through the screws, the knife switch base 1 is firmly fixed at the installation position, then the insulating fixed seat 2 is attached to the knife switch base 1 again, at the moment, the two groups of fixed blocks A3 and the fixed blocks B4 are attached to each other, then the two groups of fixed blocks A3 and the fixed blocks B4 which are attached together need to be firmly fixed through the screws, then the insulating covers of the ends of two connected wires need to be removed, then the two wires need to be inserted into two wiring jacks 7 in the rear end of the knife switch base 1, the two wiring screws 6 are tightened, the two connected wires are respectively fixed in the two wiring jacks 7, then the two connected wires need to be removed, the two wires are inserted into the two wiring jacks 7 in the front end of the knife switch base 1, and the two wires can be normally screwed out through the screws, and the two wiring jacks 6 can be used.

Finally, it should be noted that: 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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a knife switch for circuit control, includes knife switch base (1) and insulating fixing base (2), is located insulating fixing base (2) of knife switch base (1) upper end, is located fixed block A (3) on both ends outer wall about knife switch base (1), its characterized in that: the insulating fixing seat (2) is provided with fixing blocks B (4) on the outer walls of the left end and the right end, the two fixing blocks B (4) are respectively positioned at the upper ends of the two fixing blocks A (3), the inner parts of the knife switch base (1) close to the outer walls of the rear ends of the left side and the right side are respectively provided with a wiring jack (7), wiring screws (6) are embedded in the vertical inner parts of the insulating fixing seat (2) close to the four corners, and the outer walls of the front end and the rear end of the knife switch base (1) are respectively provided with a wiring protection device (8);

wiring protection device (8) are including insulating connecting rod (12), arc recess (13), insulating wire clip (14), locking screw (15) and wiring protection shield (16), all be provided with insulating connecting rod (12), two on knife switch base (1) left and right sides rear end outer wall the rear end of insulating connecting rod (12) is connected with wiring protection shield (16), wiring protection shield (16) are close to all to be provided with on the left and right sides upper end outer wall inside sunken arc recess (13), two arc recess (13) upper end all is provided with insulating wire clip (14), two insulating wire clip (14) are close to the vertical inside of left and right sides and all run through locking screw (15), four the lower extreme of locking screw (15) all runs through in the inside reservation screw of wiring protection shield (16).

2. A knife switch for circuit control according to claim 1, characterized in that: insulating fixing base (2) interlude upper end is provided with and glues lid (5), it has switch spout (9) all to run through inside the left and right sides outer wall of central department of lid (5), two switch spout (9) are inside all upwards to run through there are metal blade (10), two the upper end of metal blade (10) is provided with ceramic handle (11).

3. A knife switch for circuit control according to claim 1, characterized in that: the insulating fixing seat (2) and the rubber cover (5) are made of flame-retardant heat-resistant plastics in an integrated forming mode, and the cross section of the rubber cover (5) is semicircular.

4. A knife switch for circuit control according to claim 1, characterized in that: the cross-sectional shape and the area size of the fixed block A (3) are the same as those of the fixed block B (4), and the fixed block A (3) is fixedly connected with the fixed block B (4) through two screws.

5. A knife switch for circuit control according to claim 2, characterized in that: ceramic handle (11) all adopt ceramic material to make, metal blade (10) adopt pure copper metal to make, both ends outer wall does not contact with switch spout (9) both ends inner wall about metal blade (10).

6. A knife switch for circuit control according to claim 1, characterized in that: the insulating wire clamping sheet (14) and the wiring protection plate (16) are both made of insulating hard materials, and threads on the outer wall of a screw rod of the locking screw (15) are meshed with threads on the inner wall of a reserved screw hole in the wiring protection plate (16).