CN108597952A - A kind of magnetic switch of safe anti-rock - Google Patents
A kind of magnetic switch of safe anti-rock Download PDFInfo
- Publication number
- CN108597952A CN108597952A CN201810758139.0A CN201810758139A CN108597952A CN 108597952 A CN108597952 A CN 108597952A CN 201810758139 A CN201810758139 A CN 201810758139A CN 108597952 A CN108597952 A CN 108597952A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- glass tube
- magnetic switch
- symmetrically
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a kind of magnetic switch of safe anti-rock, including glass tube, one end of the glass tube is fixedly connected with the second conducting wire, the other end of the glass tube is fixedly connected with the first conducting wire, a pair of of bindiny mechanism is symmetrically installed in the glass tube, each bindiny mechanism includes a pair of of fixinig plate, the side of two fixinig plates is fixedly connected with stationary contact, the first energization silk is fixedly connected on fixinig plate described in two of which, sliding rail is installed between two bindiny mechanisms, slide plate is symmetrically slidably connected in the sliding rail, movable contact corresponding with stationary contact is symmetrically fixedly connected on two slide plates, it is socketed with fixing axle on the sliding rail.The mutual cooperation that the present invention passes through two slide plates, it, will not deviating track during the movement to ensure that slide plate since slide plate limits move angle in moving process by the first movable sleeve and the second movable sleeve, it random due to shaking will not swing, influence to use.
Description
Technical field
The present invention relates to magnetic switch technical field more particularly to a kind of magnetic switch of safe anti-rock.
Background technology
Magnetic switch is a kind of circuit switche controlled using magnetic field signal, is also magnetic switch, common magnetic
Property switch have two kinds of single contact and double-contact, when the substance that is magnetic is close to glass tube, under the action of magnetic field magnetic line, in pipe
Two reeds be magnetized and contact of attracting each other, reed will be pulled together, the circuit communication for making node be connect, outer magnetic force
After disappearance, two reeds are separated due to the elasticity of itself, and circuit is also just disconnected.
Due to rely on inside magnetic switch be therein reed elasticity, when being deformed upon under magneticaction
It waits so that switch forms access, and what magnetic switch relied on is exactly that elastic force deformation forms access, and internal reed is easy in external force
It is deformed upon under shaking effect, so magnetic switch must avoid shaking when transport, careful holding, and frequent rolling
The dynamic failure for also be easy to causeing magnetic switch structure elasticity, it is easy to cause the damage of magnetic switch.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, such as：Magnetic switch is easy to be shaken by external force
Influence, a kind of magnetic switch for the safe anti-rock that or even magnetic switch can be damaged, and proposed.
To achieve the goals above, present invention employs following technical solutions：
A kind of magnetic switch of safe anti-rock, including glass tube, one end of the glass tube are fixedly connected with second and lead
The other end of line, the glass tube is fixedly connected with the first conducting wire, a pair of of bindiny mechanism is symmetrically installed in the glass tube, often
A bindiny mechanism includes a pair of of fixinig plate, and the side of two fixinig plates is fixedly connected with stationary contact, two of which institute
It states and is fixedly connected with the first energization silk on fixinig plate, sliding rail is installed between two bindiny mechanisms, it is symmetrical in the sliding rail
Slide plate is slidably connected, movable contact corresponding with stationary contact is symmetrically fixedly connected on two slide plates, is covered on the sliding rail
It is connected to fixing axle, being fixedly connected with the inner wall of glass tube for the fixing axle is fixedly connected with a pair on the outside of the glass tube
Frame is connected, regulating mechanism is installed in two connection frames, a pair of of sliding slot, the cunning are installed on the inner wall of the glass tube
Linkage block is slidably connected on slot, and a pair of of ball is rotatably connected in the linkage block, the ball is slidably connected with sliding slot, and two
The side of a slide plate is fixedly connected with connecting shaft, and moving body, the moving body and connecting shaft are equipped in the connecting shaft
Between be provided with telescoping mechanism, be also fixedly connected with display lamp on the glass tube.
Preferably, the telescoping mechanism includes shifting axle and movable sleeving, and the shifting axle is fixedly connected with moving body, described
Shifting axle is fixedly connected with connecting shaft, and the shifting axle is plugged in movable sleeving, and limited block is fixedly connected in the movable sleeving,
The both sides of the shifting axle symmetrically open up limiting slot, and the limited block is slidably connected with limiting slot.
Preferably, the regulating mechanism includes thread spindle and adjusts body, and the thread spindle rotation is plugged in connection frame, institute
The one end for stating thread spindle is fixedly connected with moving block, and screw thread is socketed with connector sleeve on the thread spindle, the adjusting body with connect
Set rotation connection, the adjusting body are slidably connected with frame is connect, and fixed mechanism, the fixed mechanism are equipped in the connection frame
It is clamped with body is adjusted.
Preferably, the fixed mechanism includes connector, and the side of the connection frame offers opening, the connector
One end is fixedly connected with axis, and the axis is equipped with link block with body clamping, side of the connector far from axis is adjusted,
The first spring is connected between the link block and connector, first spring is slidably connected with opening, and the connector is remote
One end from axis passes through opening.
Preferably, spacing block is fixedly connected in the sliding rail, the both sides of the spacing block are symmetrically fixedly connected with second
The side of movable sleeve, two slide plates is symmetrically fixedly connected with the first movable sleeve, first movable sleeve and the second movable sleeve
Mutually socket, has been fixedly connected with the second energization silk on two slide plates, two the second energization silks far from slide plate one
End is fixedly connected with intermediate, and the both sides of the axis are also symmetrically fixedly connected with second spring, the second spring it is separate every
One end from block is fixedly connected with slide plate.
Preferably, arc groove is offered on the outside of the glass tube, and lantern ring is socketed on the annular groove, the lantern ring
One end is fixedly connected with installation axle, and the symmetrical screw thread in both sides of the installation axle is inserted with screwed plug.
Preferably, the intermediate is conductor, and the moving body and adjusting body are magnet, and the linkage block is magnetic gold
Belong to.
Compared with prior art, the beneficial effects of the invention are as follows：By the mutual cooperation of two slide plates, since slide plate is moving
Move angle is limited by the first movable sleeve and the second movable sleeve in dynamic process, to ensure that slide plate movement process
In, will not deviating track, random due to shaking will not swing, influence to use；
In the outside of glass tube installation connection frame, the adjusting body in frame is connected by control, it is attracting different according to the magnetic same sex
The characteristics of property is repelled each other, its position is controlled by the connecting shaft of slide plate side, secure slide plate in order to also avoid to transport
It is frequent in the process to shake the failure for causing inner elastomeric.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the magnetic switch of safe anti-rock proposed by the present invention；
Fig. 2 is a kind of structural schematic diagram of the magnetic switch sliding rail of safe anti-rock proposed by the present invention；
Fig. 3 is the structural schematic diagram at A in Fig. 1；
Fig. 4 is the structural schematic diagram at B in Fig. 1.
In figure：1 first conducting wire, 2 glass tubes, 3 stationary contacts, 4 movable contacts, 5 slide plates, 6 fixing axles, 7 sliding rails, 8 fixinig plates, 9
Installation axle, 10 screwed plugs, 11 lantern rings, 12 display lamps, 13 second conducting wires, 14 first energization silks, 15 connectors, 16 link blocks, 17
First spring, 18 axis, 19 adjust bodies, 20 thread spindles, 21 connection frames, 22 moving blocks, 23 sliding slots, 24 first movable sleeves, 25 the
Two-way electrical filament, 26 intermediates, 27 second movable sleeves, 28 spacing blocks, 29 second springs, 30 connector sleeves, 31 linkage blocks, 32 balls,
33 moving bodys, 34 shifting axles, 35 connecting shafts, 36 movable sleevings.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Referring to Fig.1-4, a kind of magnetic switch of safe anti-rock, including glass tube 2, one end of glass tube 2 are fixedly connected
There are the second conducting wire 13, the other end of glass tube 2 to be fixedly connected with the first conducting wire 1, a pair of of connection machine is symmetrically installed in glass tube 2
The outside of structure, glass tube 2 offers arc groove, and lantern ring 11 is socketed on annular groove, and one end of lantern ring 11 is fixedly connected with installation
The symmetrical screw thread in both sides of axis 9, installation axle 9 is inserted with screwed plug 10, when being installed to equipment, by by screwed plug 10
Screw thread also cross fixing body and installation axle 9, to realize glass tube 2 position fixation, realize the installation of the device, each
Bindiny mechanism includes a pair of of fixinig plate 8, and the sides of two fixinig plates 8 is fixedly connected with stationary contact 3, on two of which fixinig plate 8
It is fixedly connected with the first energization silk 14, sliding rail 7 is installed between Liang Ge bindiny mechanisms, slide plate is symmetrically slidably connected in sliding rail 7
5, movable contact 4 corresponding with stationary contact 3 is symmetrically fixedly connected on two slide plates 5, and fixing axle 6, fixing axle are socketed on sliding rail 7
6 are fixedly connected with the inner wall of glass tube 2, and the outside of glass tube 2 is fixedly connected with a pair of of connection frame 21, in two connection frames 21
Regulating mechanism is installed, a pair of of sliding slot 23 is installed on the inner wall of glass tube 2, linkage block 31 is slidably connected on sliding slot 23, is joined
A pair of of ball 32 is rotatably connected in motion block 31, ball 32 is slidably connected with sliding slot 23, and the side of two slide plates 5 is fixedly connected with
Connecting shaft 35 is equipped with moving body 33 in connecting shaft 35, telescoping mechanism, glass tube is provided between moving body 33 and connecting shaft 35
Display lamp 12 is also fixedly connected on 2；
Wherein, telescoping mechanism includes shifting axle 34 and movable sleeving 36, and shifting axle 34 is fixedly connected with moving body 33, shifting axle
34 are fixedly connected with connecting shaft 35, and shifting axle 34 is plugged in movable sleeving 36, and limited block is fixedly connected in movable sleeving 36, mobile
The both sides of axis 34 symmetrically open up limiting slot, and limited block is slidably connected with limiting slot, and shifting axle 34 can relatively move 36 sliding of set,
When moving body 33 is attracted by linkage block 31, movable sleeving 36 can relatively move the sliding of axis 34, and telescoping mechanism ensures moving body
33 with the connection of connecting shaft 35, and adjust mutual distance between the two, wherein limited block plays the role of limit, control movement
Scope of activities between axis 34 and movable sleeving 36, when linkage block 31 attracts moving body 33, it will pass through 35 band of connecting shaft
Move the movement of slide plate 5 connected to it；
Wherein, regulating mechanism includes thread spindle 20 and adjusts body 19, and the rotation of thread spindle 20 is plugged in connection frame 21, screw thread
One end of axis 20 is fixedly connected with moving block 22, and screw thread is socketed with connector sleeve 30 on thread spindle 20, adjusts body 19 and connector sleeve 30
Rotation connection adjusts body 19 and is slidably connected with frame 21 is connect, and connects and is equipped with fixed mechanism in frame 21, fixed mechanism and adjusting body
19 clampings have magnetism, when adjusting South Pole one end of body 19 towards linkage block 31, due to moving body due to adjusting body 19
Towards linkage block 31, magnetic north attracts each other with magnetic south for 33 arctic one end, so the magnetic control by adjusting body 19
The position of corresponding slide plate 5, it is anti-to reach damping to the shaking for avoiding slide plate 5 random under external force in sliding rail 7
The effect of shaking, wherein fixed mechanism are to 19 the two poles of the earth direction of secured adjusted body；
Wherein, fixed mechanism includes connector 15, and the side of connection frame 21 offers opening, and one end of connector 15 is fixed
It is connected with axis 18, axis 18 is clamped with body 19 is adjusted, and side of the connector 15 far from axis 18 is equipped with link block 16, connects
The first spring 17 is connected between block 16 and connector 15, the first spring 17 is slidably connected with opening, and connector 15 is far from axis
18 one end passes through opening, pulls one end of connector 15, so that axis 18 is detached from body 19 is adjusted, so as to exchange
Whether section body 19 is freely rotated, to adjust need that moving body 33 is attracted or repelled；
Wherein, spacing block 28 is fixedly connected in sliding rail 7, the both sides of spacing block 28 are symmetrically fixedly connected with the second movable sleeve
27, the side of two slide plates 5 is symmetrically fixedly connected with the first movable sleeve 24, the first movable sleeve 24 and the second movable sleeve 27 mutually set
It connects, the second energization silk 25, the one end of two the second energization silks 25 far from slide plate 5 and centre has been fixedly connected on two slide plates 5
Body 26 is fixedly connected, and the both sides of axis 18 are also symmetrically fixedly connected with second spring 29, and second spring 29 is far from spacing block 28
One end is fixedly connected with slide plate 5, is mutually socketed by the first movable sleeve 24 and the second movable sleeve 27, what formation one can stretch
Structure, since the first movable sleeve 24 and the mutually socket of the second movable sleeve 27 also ensure two slide plates 5 with respect to the mistake that sliding rail 7 slides
The stabilization of journey, the elastic force effect connection slide plate 5 of second spring 29 so that the movable contact 4 on slide plate 5 will not be in its natural state
Stationary contact 3 connects, and only movable contact 4 can just be connect with stationary contact 3 in the energized state, and intermediate 26 is conductor, moving body 33
It is magnet with body 19 is adjusted, linkage block 31 is magnetic metal, and intermediate 26 can be conductive, so the of intermediate 26 and both ends
Two-way electrical filament 25 forms access, and moving body 33 and adjusting body 19 are magnet, and the two can attract each other, and can also mutually arrange
Reprimand.
In the present invention, when user uses the device, when the second conducting wire 13 and the first conducting wire 1 connection above access,
Due to the principle of magnetic life electricity, the inside of glass tube 2 will also automatically form access, and movable contact 4 will be contacted with stationary contact 3, input
Internal electric current, it will pass through the first energization silk 14 and fixinig plate 8 so that movable contact 4 and stationary contact 3 contact with each other attraction,
What middle movable contact 4, slide plate 5, the second energization silk 25, intermediate 26 were formed between each other is access, at second spring 29 at this time
In the state of stretching, display lamp 12 will also be shone due to access, so the situation of the circuit of display connection；
The equipment is transported if necessary, avoids second spring 29 from frequently shaking and causes its elastic failure, pass through
Moving block 22, the movement that the rotation of moving block 22 will drive connector sleeve 30 opposite are rotated, the mobile of connector sleeve 30 can drive tune
It saves body 19 to move, adjusts body 19 and magnetic pole is carried by the magnetism for attracting linkage block 31 to make it internal, so realize linkage block 31
With the attraction of moving body 33, when there is a natural attraction between the sexes for moving body 33 and axis 18, the movement of axis 18 will drive moving body
33 movement, moving body 33 drive corresponding slide plate 5 to move by telescoping mechanism, then the first spring 17 in fixed mechanism
Elastic force offset so that the angle position for adjusting body 19 is constant, so the position of moving body 33, slide plate 5 can fix
Inconvenience, since the both ends of second spring 29 have been fixed position, when to covering equipment conveying, second spring 29 is just not
It therefore and strongly can frequently shake, be effectively protected lid equipment, extend its service life.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of magnetic switch of safe anti-rock, including glass tube (2), which is characterized in that one end of the glass tube (2) is solid
Surely it is connected with the second conducting wire (13), the other end of the glass tube (2) is fixedly connected with the first conducting wire (1), the glass tube (2)
It is inside symmetrically installed with a pair of of bindiny mechanism, each bindiny mechanism includes a pair of of fixinig plate (8), two fixinig plates (8)
Side be fixedly connected with stationary contact (3), be fixedly connected with the first energization silk (14) on fixinig plate (8) described in two of which, two
Sliding rail (7) is installed between a bindiny mechanism, slide plate (5), two cunnings are symmetrically slidably connected in the sliding rail (7)
It is symmetrically fixedly connected with movable contact (4) corresponding with stationary contact (3) on piece (5), fixing axle (6) is socketed on the sliding rail (7),
The fixing axle (6) is fixedly connected with the inner wall of glass tube (2), and a pair of connect is fixedly connected on the outside of the glass tube (2)
Frame (21) is connect, regulating mechanism is installed in two connection frames (21), a pair of of cunning is installed on the inner wall of the glass tube (2)
Slot (23) slidably connects linkage block (31) on the sliding slot (23), a pair of of ball is rotatably connected in the linkage block (31)
(32), the ball (32) is slidably connected with sliding slot (23), and the side of two slide plates (5) is fixedly connected with connecting shaft
(35), moving body (33) is installed on the connecting shaft (35), is provided with and stretches between the moving body (33) and connecting shaft (35)
Contracting mechanism is also fixedly connected with display lamp (12) on the glass tube (2).
2. a kind of magnetic switch of safe anti-rock according to claim 1, which is characterized in that the telescoping mechanism includes
Shifting axle (34) and movable sleeving (36), the shifting axle (34) are fixedly connected with moving body (33), the shifting axle (34) and company
Spindle (35) is fixedly connected, and the shifting axle (34) is plugged in movable sleeving (36), is fixedly connected in the movable sleeving (36)
The both sides of limited block, the shifting axle (34) symmetrically open up limiting slot, and the limited block is slidably connected with limiting slot.
3. a kind of magnetic switch of safe anti-rock according to claim 1, which is characterized in that the regulating mechanism includes
Thread spindle (20) and adjusting body (19), thread spindle (20) rotation are plugged in connection frame (21), the thread spindle (20)
One end is fixedly connected with moving block (22), and screw thread is socketed with connector sleeve (30), the adjusting body (19) on the thread spindle (20)
It is rotatablely connected with connector sleeve (30), the adjusting body (19) is slidably connected with frame (21) is connect, installation in the connection frame (21)
There are fixed mechanism, the fixed mechanism to be clamped with body (19) is adjusted.
4. a kind of magnetic switch of safe anti-rock according to claim 3, which is characterized in that the fixed mechanism includes
The side of connector (15), the connection frame (21) offers opening, and one end of the connector (15) is fixedly connected with axis
(18), the axis (18) is clamped with body (19) is adjusted, and side of the connector (15) far from axis (18) is equipped with connection
Block (16), is connected with the first spring (17) between the link block (16) and connector (15), first spring (17) with open
Mouth is slidably connected, and the one end of the connector (15) far from axis (18) passes through opening.
5. a kind of magnetic switch of safe anti-rock according to claim 1, which is characterized in that solid in the sliding rail (7)
Surely it is connected with spacing block (28), the both sides of the spacing block (28) are symmetrically fixedly connected with the second movable sleeve (27), described in two
The side of slide plate (5) is symmetrically fixedly connected with the first movable sleeve (24), first movable sleeve (24) and the second movable sleeve (27)
It is mutually socketed, the second energization silk (25) has been fixedly connected on two slide plates (5), two the second energization silks (25) are remote
One end from slide plate (5) is fixedly connected with intermediate (26), and the both sides of the axis (18) are also symmetrically fixedly connected with the second bullet
Spring (29), the one end of the second spring (29) far from spacing block (28) are fixedly connected with slide plate (5).
6. a kind of magnetic switch of safe anti-rock according to claim 1, which is characterized in that the glass tube (2)
Outside offers arc groove, and lantern ring (11) is socketed on the annular groove, and one end of the lantern ring (11) is fixedly connected with installation
The symmetrical screw thread in both sides of axis (9), the installation axle (9) is inserted with screwed plug (10).
7. a kind of magnetic switch of safe anti-rock according to claim 4 or 5, which is characterized in that the intermediate
(26) it is conductor, the moving body (33) and adjusting body (19) are magnet, and the linkage block (31) is magnetic metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810758139.0A CN108597952B (en) | 2018-07-11 | 2018-07-11 | Safe anti-shaking magnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810758139.0A CN108597952B (en) | 2018-07-11 | 2018-07-11 | Safe anti-shaking magnetic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108597952A true CN108597952A (en) | 2018-09-28 |
| CN108597952B CN108597952B (en) | 2023-08-04 |
Family
ID=63615270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810758139.0A Active CN108597952B (en) | 2018-07-11 | 2018-07-11 | Safe anti-shaking magnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108597952B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524279A (en) * | 2018-11-26 | 2019-03-26 | 刘培成 | A kind of novel energy-conserving fuse |
| CN109786176A (en) * | 2019-03-03 | 2019-05-21 | 嘉兴新博信息科技有限公司 | A kind of water proof type magnetic switch with electric leakage alarm |
| CN113205970A (en) * | 2021-03-18 | 2021-08-03 | 茂物久泽(南京)智能科技有限公司 | Remote control's safe switch |
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| WO2017157121A1 (en) * | 2016-03-18 | 2017-09-21 | 彭旭华 | Bistable magnetic latching relay based on mechanical h-bridge |
| CN207165472U (en) * | 2017-10-09 | 2018-03-30 | 姜来娟 | A kind of magnetic slide switch |
| CN208608107U (en) * | 2018-07-11 | 2019-03-15 | 金辉 | A kind of magnetic switch of safe anti-rock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4219823A1 (en) * | 1992-06-17 | 1993-12-23 | Gustav Hahn | Magnetically operated tilt switch with movable magnetically permeable ball - uses longer and shorter glass tubes contg. respectively break-before-make contact set and steel ball displaceable in paraxial direction. |
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| JP2011238352A (en) * | 2010-04-30 | 2011-11-24 | Nippon Aleph Corp | Displacement sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524279A (en) * | 2018-11-26 | 2019-03-26 | 刘培成 | A kind of novel energy-conserving fuse |
| CN109786176A (en) * | 2019-03-03 | 2019-05-21 | 嘉兴新博信息科技有限公司 | A kind of water proof type magnetic switch with electric leakage alarm |
| CN109786176B (en) * | 2019-03-03 | 2020-06-05 | 金华九禾磁电科技有限公司 | Waterproof magnetic control switch with electric leakage alarm |
| CN113205970A (en) * | 2021-03-18 | 2021-08-03 | 茂物久泽(南京)智能科技有限公司 | Remote control's safe switch |
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| Publication number | Publication date |
|---|---|
| CN108597952B (en) | 2023-08-04 |
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