CN210640147U

CN210640147U - Anti-loose switch for weak current power grid

Info

Publication number: CN210640147U
Application number: CN201920516973.9U
Authority: CN
Inventors: 李文龙; 刘朋
Original assignee: Huaian Vocational College of Information Technology
Current assignee: Huaian Vocational College of Information Technology
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-05-29
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a locking switch for weak current electric wire netting, this locking switch includes the base of insulating material, first static contact, the second static contact, first moving contact and second moving contact, first static contact and second static contact are fixed mounting respectively on the base, first moving contact one end is through articulated mounting and base swing joint, second moving contact one end is through locking device and base swing joint, the handle is connected with first moving contact and second moving contact fixed connection, first static contact and second static contact cooperate with first moving contact and second moving contact respectively; the utility model discloses well spring shrink, square piece get into square groove in, square piece extrusion second moving contact prevents that the second moving contact is not hard up, because first moving contact and second moving contact pass through the handle and link to each other, so the second moving contact also can prevent when compressing tightly that first moving contact is not hard up to play locking effect.

Description

Anti-loose switch for weak current power grid

Technical Field

The utility model relates to a locking switch technical field specifically is a locking switch for light current electric wire netting.

Background

A switch is an electronic component that can open a circuit, interrupt current, or cause current to flow to other circuits. The most common switches have one or more electrical contacts, the "closing" of which indicates that the electrical contact is conductive, allowing current to flow; an "open" of the switch means that the electrical contact is non-conductive, creating an open circuit, not allowing current to flow.

At present, a knife switch is a simplest and widely used low-voltage electrical appliance, the knife switch is a manual switch which is provided with a moving contact and is contacted with or separated from a static contact on a base to connect or disconnect a circuit, and the knife switch plays a role in the circuit: isolating the power supply to ensure the safety of circuit and equipment maintenance; and breaking the load, such as switching on and off a low-voltage circuit with low capacity infrequently or starting a low-capacity motor directly. However, the moving contact on the knife switch presses the static contact, and due to the external factors such as vibration and the like, the moving contact may be loosened after a long time, specifically, the moving contact is loosened, and the moving contact cannot be pressed on the static contact, so that poor contact is caused, and therefore, it is very important to develop a locking switch.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking switch for weak current electric wire netting to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme:

a kind of anti-loose switch used for weak current electric wire netting, this anti-loose switch includes the base of the insulating material, the first static contact, the second static contact, the first moving contact and the second moving contact, the first static contact and the second static contact are fixedly mounted on base respectively, one end of the first moving contact is connected with base activity through the hinge joint, the hinge joint is fixedly connected with base, one end of the second moving contact is connected with base activity through the anti-loose device, the anti-loose device is fixedly connected with base, another end of the first moving contact and another end of the second moving contact have insulating material hand grips, the hand grip is fixedly connected with first moving contact and second moving contact, the first static contact and the second static contact cooperate with first moving contact and second moving contact separately; the base made of the insulating material and the handle made of the insulating material ensure the safety of the switch; the handle is pulled, the first moving contact and the second moving contact are respectively contacted with the first fixed contact and the second fixed contact, and the circuit is switched on; and when the handle is pulled, the first moving contact and the second moving contact are separated from the first fixed contact and the second fixed contact respectively, and the circuit is interrupted.

As optimization, the hinge device comprises two first fixed blocks, the two first fixed blocks are respectively arranged on two sides of one end of the first moving contact, the two first fixed blocks are fixedly connected with the base, a first connecting rod is arranged between the two first fixed blocks, two ends of the first connecting rod are respectively fixedly connected with the two first fixed blocks, the first connecting rod penetrates through the first moving contact, and the first moving contact rotates by taking the first connecting rod as an axis.

As optimization, the locking device includes second fixed block and locking subassembly, and second fixed block and locking subassembly set up the both sides at second moving contact one end respectively, second fixed block and locking subassembly respectively with base fixed connection, be equipped with the second connecting rod between second fixed block and the locking subassembly, second connecting rod one end and second fixed block fixed connection, the other end and locking subassembly swing joint, the second connecting rod passes the second moving contact, the second moving contact uses the second connecting rod as the axle rotation.

As optimization, the anti-loosening assembly comprises a third fixed block, the third fixed block is arranged on one side of one end of the second moving contact and fixedly connected with the base, a square groove is formed in the third fixed block, a second connecting rod penetrates through the square groove, a square block is arranged at one end of the second connecting rod penetrating through the square groove and mutually matched with the square groove, a through hole is formed in the square block, the second connecting rod extends into the through hole, limiting blocks are respectively arranged on two sides of one end of the second connecting rod extending to the through hole, the second connecting rod moves in the through hole, a knob is fixedly connected to one end, far away from the third fixed block, of the square block, two springs are arranged between the knob and the third fixed block, the two springs are in opposite positions, and two ends of the springs are respectively and fixedly; the knob is pulled by one hand, the spring is extended, the square block is pulled out from the square groove, the second connecting rod is pulled out from the through hole by one section, the limiting block has a limiting effect on the second connecting rod, the second connecting rod is prevented from falling off from the square block, the handle is pulled by the other hand, the first moving contact and the second moving contact are respectively contacted with the first static contact and the second static contact, the circuit is connected, two hands are simultaneously lost, the spring contracts and returns to an initial state, the second connecting rod enters the through hole, the square block enters the square groove, the square block extrudes the second moving contact at the moment, the second moving contact is prevented from being loosened, the first moving contact and the second moving contact are connected through the handle, the second moving contact is also prevented from being loosened when being compressed, and therefore the first moving contact is prevented from being loosened, and the anti.

As optimization, a cover is arranged at one end of the base, which is far away from the first static contact and the second static contact, one end of the cover is hinged with the base through a hinge, a spring snap fastener is arranged at the edge of the other end of the cover, a snap groove is arranged at one end of the base, which is close to the first static contact and the second static contact, and the spring snap fastener is matched with the snap groove; the cover is arranged to prevent dust from falling into the switch to pollute the switch, and the cover also has a waterproof function.

Preferably, an electric wire is arranged at one end of the base close to the first fixed contact and the second fixed contact, and power lines are respectively arranged on the first moving contact and the second moving contact.

Preferably, the first fixed contact and the second fixed contact are copper sheets which are attached to each other, and the first moving contact and the second moving contact are copper conductive sheets.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a check switch for a weak current electric network, which adopts a base made of insulating material and a handle made of insulating material to ensure the safety of the switch; the handle is pulled, the first moving contact and the second moving contact are respectively contacted with the first fixed contact and the second fixed contact, and the circuit is switched on; and when the handle is pulled, the first moving contact and the second moving contact are separated from the first fixed contact and the second fixed contact respectively, and the circuit is interrupted.

The utility model relates to a locking switch for light current electric wire netting, the knob is pulled to one hand, the spring extension, square piece is pulled out from square groove, the second connecting rod is pulled out one section from the through-hole, the stopper has limiting displacement to the second connecting rod, prevent that the second connecting rod from droing from square piece, the handle is pulled to the other hand, first moving contact and second moving contact respectively with first static contact and second static contact, the circuit switch-on, then two hands are lost simultaneously, the spring shrink, resume initial state, the second connecting rod gets into in the through-hole, square piece gets into square groove, square piece extrusion second moving contact this moment, prevent that the second moving contact is not hard up, because first moving contact and second moving contact pass through the handle and link to each other, so the second moving contact also can prevent that first moving contact is not hard up when compressing tightly, thereby play locking effect.

Drawings

Fig. 1 is a schematic structural view of a locking switch for a weak current power grid according to the present invention;

fig. 2 is a schematic structural view of a base and components thereon in the anti-loose switch for a weak current power grid of the present invention;

fig. 3 is a schematic structural diagram of a first moving contact, a second moving contact, a hinge device, a locking device and a handle in a locking switch for a weak current power grid according to the present invention;

fig. 4 is a schematic structural view of the anti-loosening device in the anti-loosening switch for the weak current power grid of the present invention;

fig. 5 is a cross-sectional view of the anti-loose assembly in the anti-loose switch for the weak current power grid of the present invention.

In the figure: 1. a base; 11. a button slot; 12. an electric wire; 2. a first fixed contact; 3. a second fixed contact; 4. a first moving contact; 41. a power line; 5. a second moving contact; 6. a hinge device; 61. a first fixed block; 62. a first connecting rod; 7. a locking device; 71. a second fixed block; 72. a locking assembly; 7201. a third fixed block; 7202. a square groove; 7203. a square block; 7204. a knob; 7205. a spring; 7206. a through hole; 7207. a limiting block; 73. a second connecting rod; 8. a cover; 81. a hinge; 82. spring snap fasteners; 9. a handle.

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.

A kind of anti-loose switch used for weak current electric wire netting, this anti-loose switch includes the base 1 of the insulating material, the first static contact 2, the second static contact 3, the first moving contact 4 and the second moving contact 5, the first static contact 2 and the second static contact 3 are fixedly mounted on base 1 respectively, one end of the first moving contact 4 is movably connected with base 1 through the hinge joint 6, the hinge joint 6 is fixedly connected with base 1, one end of the second moving contact 5 is movably connected with base 1 through the anti-loose device 7, the anti-loose device 7 is fixedly connected with base 1, another end of the first moving contact 4 and another end of the second moving contact 5 have insulating material hand grips 9, the hand grips 9 are fixedly connected with first moving contact 4 and second moving contact 5, the first static contact 2 and the second static contact 3 cooperate with first moving contact 4 and second moving contact 5 respectively; the base 1 made of insulating materials and the handle 9 made of insulating materials ensure the safety of the switch; the handle 9 is pulled, the first moving contact 4 and the second moving contact 5 are respectively contacted with the first fixed contact 2 and the second fixed contact 3, and the circuit is switched on; the handle 9 is pulled, the first moving contact 4 and the second moving contact 5 are separated from the first fixed contact 2 and the second fixed contact 3 respectively, and the circuit is interrupted.

The hinge device 6 comprises two first fixed blocks 61, the two first fixed blocks 61 are respectively arranged at two sides of one end of the first moving contact 4, the two first fixed blocks 61 are fixedly connected with the base 1, a first connecting rod 62 is arranged between the two first fixed blocks 61, two ends of the first connecting rod 62 are respectively fixedly connected with the two first fixed blocks 61, the first connecting rod 62 penetrates through the first moving contact 4, and the first moving contact 4 rotates by taking the first connecting rod 62 as a shaft.

The anti-loosening device 7 comprises a second fixed block 71 and an anti-loosening assembly 72, the second fixed block 71 and the anti-loosening assembly 72 are respectively arranged on two sides of one end of the second moving contact 5, the second fixed block 71 and the anti-loosening assembly 72 are respectively fixedly connected with the base 1, a second connecting rod 73 is arranged between the second fixed block 71 and the anti-loosening assembly 72, one end of the second connecting rod 73 is fixedly connected with the second fixed block 71, the other end of the second connecting rod is movably connected with the anti-loosening assembly 72, the second connecting rod 73 penetrates through the second moving contact 5, and the second moving contact 5 rotates by taking the second connecting rod 73 as a shaft.

The anti-loosening assembly 72 comprises a third fixing block 7201, the third fixing block 7201 is arranged on one side of one end of the second moving contact 5, the third fixing block 7201 is fixedly connected with the base 1, a square groove 7202 is formed in the third fixing block 7201, a second connecting rod 73 penetrates through the square groove 7202, a square block 7203 is arranged at one end of the second connecting rod 73 penetrating through the square groove 7202, the square block 7203 is matched with the square groove 7202, a through hole 7206 is formed in the square block 7203, the second connecting rod 73 extends into the through hole 7206, two limiting blocks 7207 are respectively arranged on two sides of one end of the second connecting rod 73 extending to the through hole 7206, the second connecting rod 73 moves in the through hole 7206, a knob 7204 is fixedly connected to one end of the square block 7203 far away from the third fixing block 7201, two springs 7205 are arranged between the knob 7204 and the third fixing block 7201, two ends of the springs 7205 are respectively and fixedly connected with the knob 7204 and the third fixing; when the knob 7204 is pulled by one hand, the spring 7205 is extended, the square block 7203 is pulled out of the square groove 7202, the second connecting rod 73 is pulled out of the through hole 7206 by one section, the limiting block 7206 has a limiting effect on the second connecting rod 73 to prevent the second connecting rod 73 from falling off from the square block 7203, the handle 9 is pulled by the other hand, the first moving contact 4 and the second moving contact 5 are respectively contacted with the first static contact 2 and the second static contact 3, the circuit is switched on, then both hands are simultaneously discarded, the spring 7205 is contracted to be restored to the original state, the second link lever 73 is inserted into the through hole 7206, the square block 7203 enters the square groove 7202, at this time, the square block 7203 extrudes the second moving contact 5 to prevent the second moving contact 5 from loosening, because the first moving contact 4 and the second moving contact 5 are connected through the handle 9, therefore, the second movable contact 5 is pressed and simultaneously the first movable contact 4 can be prevented from loosening, thereby playing a role in preventing loosening.

A cover 8 is arranged at one end of the base 1 far away from the first fixed contact 2 and the second fixed contact 3, one end of the cover 8 is hinged to the base 1 through a hinge 81, a spring snap 82 is arranged at the edge of the other end of the cover 8, a snap groove 11 is arranged at one end of the base 1 close to the first fixed contact 2 and the second fixed contact 3, and the spring snap 82 is matched with the snap groove 11; the cover 8 is provided to prevent dust from falling into the switch and contaminating the switch, and also to provide water resistance.

An electric wire 12 is arranged at one end of the base 1 close to the first fixed contact 2 and the second fixed contact 3, and a power line 41 is respectively arranged on the first movable contact 4 and the second movable contact 5.

The first static contact 2 and the second static contact 3 are copper sheets which are jointed with each other, and the first moving contact 4 and the second moving contact 5 are copper conducting sheets.

When the device is used, the spring snap 82 on the cover 8 is pressed by a hand, the spring snap 82 is popped out from the snap groove 11 to drive the cover 8 to open, one hand pulls the knob 7204, the spring 7205 extends, the square block 7203 is pulled out from the square groove 7202, the second connecting rod 73 is pulled out by a section from the through hole 7206, the limiting block 7207 has a limiting effect on the second connecting rod 73 to prevent the second connecting rod 73 from falling off from the square block 7203, the other hand pulls the handle 9, the first moving contact 4 and the second moving contact 5 are respectively contacted with the first fixed contact 2 and the second fixed contact 3, the circuit is connected, then two hands are simultaneously thrown away, the spring 7205 contracts and returns to the initial state, the second connecting rod 73 enters the through hole 7206, the square block 7203 enters the groove 7202, the square block 7203 extrudes the second moving contact 5 at the moment to prevent the second moving contact 5 from loosening, because the first moving contact 4 is connected with the second moving contact 5 through the handle, therefore, the second moving contact 5 is pressed and simultaneously the first moving contact 4 can be prevented from loosening, so that the anti-loosening effect is achieved, after the circuit is connected, the spring snap 82 on the cover 8 is pressed by a hand, the spring snap 82 is clamped into the snap groove 11, the cover 8 covers the switch, dust is prevented from falling into the switch, pollution to the switch is prevented, and in addition, the waterproof effect is achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A check switch for a weak current power grid is characterized in that: the anti-loosening switch comprises a base (1) made of insulating materials, a first fixed contact (2), a second fixed contact (3), a first moving contact (4) and a second moving contact (5), wherein the first fixed contact (2) and the second fixed contact (3) are respectively and fixedly installed on the base (1), one end of the first moving contact (4) is movably connected with the base (1) through a hinge device (6), the hinge device (6) is fixedly connected with the base (1), one end of the second moving contact (5) is movably connected with the base (1) through a loosening prevention device (7), the loosening prevention device (7) is fixedly connected with the base (1), a handle (9) made of insulating materials is arranged at the other end of the first moving contact (4) and the other end of the second moving contact (5), and the handle (9) is fixedly connected with the first moving contact (4) and the second moving contact (5), the first fixed contact (2) and the second fixed contact (3) are respectively matched with the first moving contact (4) and the second moving contact (5).

2. A loose prevention switch for a weak current electric network according to claim 1, characterized in that: the hinge device (6) comprises two first fixed blocks (61), the two first fixed blocks (61) are respectively arranged on two sides of one end of the first moving contact (4), the two first fixed blocks (61) are fixedly connected with the base (1), a first connecting rod (62) is arranged between the two first fixed blocks (61), two ends of the first connecting rod (62) are respectively fixedly connected with the two first fixed blocks (61), the first connecting rod (62) penetrates through the first moving contact (4), and the first moving contact (4) rotates by taking the first connecting rod (62) as an axis.

3. A loose prevention switch for a weak current electric network according to claim 2, characterized in that: the anti-loosening device (7) comprises a second fixed block (71) and an anti-loosening assembly (72), the second fixed block (71) and the anti-loosening assembly (72) are respectively arranged on two sides of one end of the second moving contact (5), the second fixed block (71) and the anti-loosening assembly (72) are respectively fixedly connected with the base (1), a second connecting rod (73) is arranged between the second fixed block (71) and the anti-loosening assembly (72), one end of the second connecting rod (73) is fixedly connected with the second fixed block (71), the other end of the second connecting rod is movably connected with the anti-loosening assembly (72), the second connecting rod (73) penetrates through the second moving contact (5), and the second moving contact (5) rotates by taking the second connecting rod (73) as a shaft.

4. A loose prevention switch for a weak current electric network according to claim 3, characterized in that: the anti-loosening assembly (72) comprises a third fixing block (7201), the third fixing block (7201) is arranged on one side of one end of the second moving contact (5), the third fixing block (7201) is fixedly connected with the base (1), a square groove (7202) is formed in the third fixing block (7201), the second connecting rod (73) penetrates through the square groove (7202), a square block (7203) is arranged at one end of the second connecting rod (73) penetrating through the square groove (7202), the square block (7203) is matched with the square groove (7202), a through hole (7206) is formed in the square block (7203), the second connecting rod (73) extends into the through hole (7206), limiting blocks (7207) are respectively arranged on two sides of one end of the second connecting rod (73) extending into the through hole (7206), a knob (7204) is fixedly connected to one end of the square block (7203) far away from the third fixing block (7201), be equipped with two springs (7205) between knob (7204) and third fixed block (7201), two springs (7205) are in relative position, spring (7205) both ends respectively with knob (7204) and third fixed block (7201) fixed connection.

5. A loose prevention switch for a weak current electric network according to claim 4, characterized in that: one end, far away from the first fixed contact (2) and the second fixed contact (3), of the base (1) is provided with a cover (8), one end of the cover (8) is hinged to the base (1) through a hinge (81), the edge of the other end of the cover (8) is provided with a spring snap fastener (82), one end, close to the first fixed contact (2) and the second fixed contact (3), of the base (1) is provided with a snap groove (11), and the spring snap fastener (82) is matched with the snap groove (11).

6. The anti-loose switch for a weak current power grid according to claim 5, wherein: and one end of the base (1) close to the first fixed contact (2) and the second fixed contact (3) is provided with an electric wire (12), and the first moving contact (4) and the second moving contact (5) are respectively provided with a power line (41).

7. The anti-loose switch for a weak current electric network according to any one of claims 1 to 6, characterized in that: the first static contact (2) and the second static contact (3) are copper sheets which are attached to each other, and the first moving contact (4) and the second moving contact (5) are copper conducting sheets.