CN209015979U - A kind of liquid-level switch having protective device - Google Patents
A kind of liquid-level switch having protective device Download PDFInfo
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- CN209015979U CN209015979U CN201822019010.6U CN201822019010U CN209015979U CN 209015979 U CN209015979 U CN 209015979U CN 201822019010 U CN201822019010 U CN 201822019010U CN 209015979 U CN209015979 U CN 209015979U
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- Prior art keywords
- fixedly connected
- liquid
- level switch
- fixed link
- sliding
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Abstract
The utility model discloses a kind of liquid-level switches for having protective device, including installing pipe, sliding sleeve is connected to fixed link in installing pipe, the lower end of fixed link offers blind hole, sliding sleeve is connected to drive rod in blind hole, the lower end of drive rod offers mounting groove, floating ball is connected with by connection structure in mounting groove, cross bar is fixedly connected on the upside of the left and right ends of fixed link, one end that two cross bars are supported or opposed is fixedly connected to sliding block, the inner wall of installing pipe is opened up there are two symmetrical sliding slot, sliding slot is matched with sliding block, the side of sliding slot offers drainage hole, the upper end of fixed link is fixedly connected there are two conducting wire.The utility model can protect the conductive electrode film in liquid-level switch, prevent from causing Danger Electric shock risk into water; and water excessive in water tank can also be discharged; the security performance of liquid-level switch is increased, while can also adjust the position of floating ball, different water levels is monitored.
Description
Technical field
The utility model relates to liquid-level switch technical field more particularly to a kind of liquid-level switches for having protective device.
Background technique
Liquid-level switch, also referred to as water level switch, liquid level sensor exactly are used to control the switch of liquid level as its name suggests.From shape
Contact and contactless is broadly divided into formula.Common non-contact switch has capacitor hydraulic switch, the floating ball of contact
Formula liquid-level switch is most widely used.Electric pole type liquid-level switch, electronic type liquid-level switch, capacitor hydraulic switch can also be used and be connect
Touch method realizes that the feature of float type level switch maximum is the floating ball for having a rod failure, with the variation of liquid level, floating ball connection
Dynamic bar is with variation, thus the closure of control switch.Industrially made at present using the water level in float measurement water tower very early
With being most widely foamed float formula liquid-level switch, receive an acclaim due to its simple installation, cheap, long service life.
In the prior art, contact liquid-level switch when in use, although simple installation, cheap, when in use,
Do not have defencive function, when the water level in water tank rises too fast, water is easy to be immersed in liquid-level switch, in liquid-level switch
Components cause to damage, and water level once touches the electric elements of switch internal, can cause the danger of electric shock.
Utility model content
Purpose of the utility model is to solve the protective of contact liquid-level switch in the prior art is poor, in water tank
Water is easy to enter the problem in liquid-level switch, and a kind of liquid-level switch of the tool protective device proposed.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of liquid-level switch having protective device, including installing pipe, sliding sleeve is connected to fixed link in the installing pipe, described
The lower end of fixed link offers blind hole, and sliding sleeve is connected to drive rod in the blind hole, and the lower end of the drive rod offers installation
Slot, the mounting groove is interior to be connected with floating ball by connection structure, is fixedly connected to cross on the upside of the left and right ends of the fixed link
Bar, one end that two cross bars are supported or opposed are fixedly connected to sliding block, and the inner wall of the installing pipe opens up that there are two symmetrical
Sliding slot, the sliding slot matches with sliding block, and the side of the sliding slot offers drainage hole, and the upper end of the fixed link is fixed to be connected
It connects there are two conducting wire, two conducting wires all extend in blind hole and first electrode sheet and second electrode has been electrically connected
Piece, the first electrode sheet are fixedly connected with the side of blind hole, and the second electrode sheet is upper by buffer structure and fixed link
End connects, and is fixedly connected with ring baffle on the bar wall of the drive rod, the upper end of the ring baffle is fixedly connected with annular
Silica gel piece.
Preferably, the connection structure includes the screw shell being fixedly connected in mounting hole, spiral shell in the screw shell
Line is connected with screw rod, and one end of the screw rod is fixedly connected with the side of floating ball, and the other end of the screw rod passes through screw shell
And it is fixedly connected with limit film.
Preferably, the buffer structure includes the link block for being fixed on second electrode on piece, and the upper end of the drive rod is opened
Equipped with cylinder groove, the first spring is fixedly connected at the slot bottom of the cylinder groove, the lower end of the link block extends to cylinder groove
It is interior and be fixedly connected with the upper end of the first spring.
Preferably, it is fixedly connected with position limiting slide block on the bar wall of the drive rod, the side of the blind hole offers limit
Sliding slot, the limit sliding chutes are matched with position limiting slide block.
Preferably, second spring is equipped in the sliding slot, one end of the second spring is fixedly connected with the side of sliding slot,
The other end of the second spring is fixedly connected with the side of sliding block.
Preferably, baffle, fixed company on the tube wall of the installing pipe are fixedly connected at the upper end tube nozzle of the installing pipe
Symmetrical mounting blocks there are two connecing.
Compared with prior art, the utility model provides a kind of liquid-level switch for having protective device, has following beneficial
Effect:
1, the liquid-level switch of the tool protective device, by the floating ball being arranged on screw rod, floating ball is pushed by the buoyancy of water
Screw rod keeps drive rod mobile, and drive rod is mobile to drive ring baffle and annular silica gel piece mobile, ring baffle and annular silica gel piece
The mobile lower end in contact with fixed link prevents from causing into water so as to protect the conductive electrode film in liquid-level switch
Danger Electric shock risk, when water level continues to rise, ring baffle pushes fixed link to keep cross bar mobile, and the mobile band movable slider of cross bar is mobile,
Sliding block is mobile to squeeze second spring, and second spring contraction continues to move to sliding block, and then makes drainage hole and turned on outside, makes excessive
Water discharge, so as to increase the security performance of liquid-level switch.
2, the liquid-level switch of the tool protective device rotates floating ball with hand by setting in screw rod upper floating ball, floating ball rotation
Screw rod rotation is driven, screw rod rotation changes the position of floating ball with screw shell interaction, the position of floating ball can be adjusted, to not
Same water level is monitored, and when first electrode sheet and second electrode sheet contact, the first spring can delay second electrode sheet
Punching, protects electrode slice.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, this is practical new
Type can protect the conductive electrode film in liquid-level switch, prevent from causing Danger Electric shock risk into water, and water tank can also be discharged
Interior excessive water, increases the security performance of liquid-level switch, while can also adjust the position of floating ball, supervises to different water levels
It surveys.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of tool protective device liquid-level switch structural schematic diagram；
Fig. 2 is the schematic enlarged-scale view in Fig. 1 at A.
In figure: 1 screw shell, 2 screw rods, 3 cross bars, 4 fixed links, 5 sliding blocks, 6 second springs, 7 conducting wires, 8 first electrode sheets,
9 baffles, 10 mounting blocks, 11 installing pipes, 12 drive rods, 13 annular silica gel pieces, 14 ring baffles, 15 floating balls, 16 position limiting slide blocks, 17
Limit sliding chutes, 18 second electrode sheets, 19 link blocks, 20 first springs, 21 limit films.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-2, a kind of liquid-level switch having protective device, including installing pipe 11, sliding sleeve is connected in installing pipe 11
Fixed link 4, the lower end of fixed link 4 offer blind hole, and sliding sleeve is connected to drive rod 12 in blind hole, fix on the bar wall of drive rod 12
It is connected with position limiting slide block 16, the side of blind hole offers limit sliding chutes 17, and limit sliding chutes 17 are matched with position limiting slide block 16, increases
Stability when drive rod 12 is mobile, the lower end of drive rod 12 offer mounting groove, are connected in mounting groove by connection structure
Floating ball 15, connection structure include the screw shell 1 being fixedly connected in mounting hole, and 1 internal screw thread of screw shell is connected with screw rod 2,
One end of screw rod 2 is fixedly connected with the side of floating ball 15, and the other end of screw rod 2 passes through screw shell 1 and is fixedly connected with limit
The left and right ends upside of piece 21, the water level for facilitating the position monitoring of adjustment floating ball 15 different, fixed link 4 is fixedly connected to cross bar
3, one end that two cross bars 3 are supported or opposed is fixedly connected to sliding block 5, and the inner wall of installing pipe 11 opens up that there are two symmetrical cunnings
Slot, sliding slot are matched with sliding block 5, and the side of sliding slot offers drainage hole, are equipped with second spring 6 in sliding slot, and the one of second spring 6
End is fixedly connected with the side of sliding slot, and the other end of second spring 6 is fixedly connected with the side of sliding block 5, and sliding block can be pushed multiple
Position blocks drainage hole, and the upper end of fixed link 4 is fixedly connected there are two conducting wire 7, and two conducting wires 7 all extend in blind hole simultaneously
First electrode sheet 8 and second electrode sheet 18 has been electrically connected, first electrode sheet 8 is fixedly connected with the side of blind hole, and second
Electrode slice 18 is connect by buffer structure with the upper end of fixed link 4, and buffer structure includes the company being fixed in second electrode sheet 18
Block 19 is connect, the upper end of drive rod 12 offers cylinder groove, and the first spring 20, link block 19 are fixedly connected at the slot bottom of cylinder groove
Lower end extend in cylinder groove and be fixedly connected with the upper end of the first spring 20, buffer protection is carried out to second electrode sheet 18,
Ring baffle 14 is fixedly connected on the bar wall of drive rod 12, the upper end of ring baffle 14 is fixedly connected with annular silica gel piece 13,
Silica gel piece can block the opening of blind hole, prevent water from entering in blind hole, cause Danger Electric shock risk, the upper end of installing pipe 11
It is fixedly connected with baffle 9 at nozzle, prevents external dust from entering in water tank by installing pipe 11, it is solid on the tube wall of installing pipe 11
There are two symmetrical mounting blocks 10, mounting blocks 10 can be easy to use bolt to connect liquid-level switch and water tank fastening for fixed connection
It connects.
In the utility model, in use, floating ball 15 is pushed screw rod 2 to keep drive rod 12 mobile by the buoyancy of water, drive rod
12 mobile drive ring baffles 14 and the movement of annular silica gel piece 13, ring baffle 14 and the movement of annular silica gel piece 13 and fixed link 4
Lower end in contact, the conductive electrode film in liquid-level switch can be protected, prevent cause Danger Electric shock risk, on water level continues
When rising, ring baffle 14 pushes fixed link 4 to keep cross bar 3 mobile, and the mobile band movable slider 5 of cross bar 3 is mobile, and sliding block 5 is mobile to squeeze the
Two springs 6, the contraction of second spring 6 continues to move to sliding block 5, and then makes drainage hole and turned on outside, excessive water is discharged, energy
The security performance for enough increasing liquid-level switch rotates floating ball 15 with hand, and the rotation of floating ball 15 drives screw rod 2 to rotate, the rotation of screw rod 2 and spiral shell
The interaction of line sleeve 1 changes the position of floating ball 15, can adjust the position of floating ball 15, be monitored to different water levels, the
When one electrode slice 8 is contacted with second electrode sheet 18, the first spring 20 can carry out buffer protection to second electrode sheet 18.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of liquid-level switch for having protective device, including installing pipe (11), which is characterized in that sliding in the installing pipe (11)
It being socketed with fixed link (4), the lower end of the fixed link (4) offers blind hole, and sliding sleeve is connected to drive rod (12) in the blind hole,
The lower end of the drive rod (12) offers mounting groove, is connected with floating ball (15) in the mounting groove by connection structure, described
It is fixedly connected to cross bar (3) on the upside of the left and right ends of fixed link (4), one end that two cross bars (3) are supported or opposed is fixed to be connected
It is connected to sliding block (5), the inner wall of the installing pipe (11) is opened up there are two symmetrical sliding slot, the sliding slot and sliding block (5) phase
Cooperation, the side of the sliding slot offer drainage hole, and the upper end of the fixed link (4) is fixedly connected there are two conducting wire (7), and two
The conducting wire (7) all extends in blind hole and has been electrically connected first electrode sheet (8) and second electrode sheet (18), and described the
One electrode slice (8) is fixedly connected with the side of blind hole, and the second electrode sheet (18) is upper by buffer structure and fixed link (4)
End connects, and is fixedly connected with ring baffle (14) on the bar wall of the drive rod (12), and the upper end of the ring baffle (14) is solid
Surely annular silica gel piece (13) are connected with.
2. a kind of liquid-level switch for having protective device according to claim 1, which is characterized in that the connection structure includes
The screw shell (1) being fixedly connected in mounting hole, screw shell (1) internal screw thread are connected with screw rod (2), the screw rod
(2) one end is fixedly connected with the side of floating ball (15), and the other end of the screw rod (2) passes through screw shell (1) and fixed company
It is connected to limit film (21).
3. a kind of liquid-level switch for having protective device according to claim 1, which is characterized in that the buffer structure includes
The upper end of the link block (19) being fixed on second electrode sheet (18), the drive rod (12) offers cylinder groove, the cylinder
Be fixedly connected at the slot bottom of slot the first spring (20), the lower end of the link block (19) extend in cylinder groove and with the first bullet
The upper end of spring (20) is fixedly connected.
4. a kind of liquid-level switch for having protective device according to claim 1, which is characterized in that the drive rod (12)
It is fixedly connected on bar wall position limiting slide block (16), the side of the blind hole offers limit sliding chutes (17), the limit sliding chutes
(17) it is matched with position limiting slide block (16).
5. a kind of liquid-level switch for having protective device according to claim 1, which is characterized in that be equipped with the in the sliding slot
One end of two springs (6), the second spring (6) is fixedly connected with the side of sliding slot, the other end of the second spring (6) with
The side of sliding block (5) is fixedly connected.
6. a kind of liquid-level switch for having protective device according to claim 1, which is characterized in that the installing pipe (11)
It is fixedly connected with baffle (9), is fixedly connected on the tube wall of the installing pipe (11) there are two symmetrical peace at upper end tube nozzle
It fills block (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822019010.6U CN209015979U (en) | 2018-12-04 | 2018-12-04 | A kind of liquid-level switch having protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822019010.6U CN209015979U (en) | 2018-12-04 | 2018-12-04 | A kind of liquid-level switch having protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209015979U true CN209015979U (en) | 2019-06-21 |
Family
ID=66843466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822019010.6U Active CN209015979U (en) | 2018-12-04 | 2018-12-04 | A kind of liquid-level switch having protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209015979U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706972A (en) * | 2019-10-12 | 2020-01-17 | 江苏德康高中压阀门制造股份有限公司 | Novel liquid level switch |
| CN110779594A (en) * | 2019-11-28 | 2020-02-11 | 徐州双裕电子技术有限公司 | Waterproof type level sensor |
-
2018
- 2018-12-04 CN CN201822019010.6U patent/CN209015979U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706972A (en) * | 2019-10-12 | 2020-01-17 | 江苏德康高中压阀门制造股份有限公司 | Novel liquid level switch |
| CN110706972B (en) * | 2019-10-12 | 2021-11-30 | 江苏德康高中压阀门制造股份有限公司 | Novel liquid level switch |
| CN110779594A (en) * | 2019-11-28 | 2020-02-11 | 徐州双裕电子技术有限公司 | Waterproof type level sensor |
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