CN202013845U - Rocking arm - Google Patents
Rocking arm Download PDFInfo
- Publication number
- CN202013845U CN202013845U CN2011201037236U CN201120103723U CN202013845U CN 202013845 U CN202013845 U CN 202013845U CN 2011201037236 U CN2011201037236 U CN 2011201037236U CN 201120103723 U CN201120103723 U CN 201120103723U CN 202013845 U CN202013845 U CN 202013845U
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- magnet
- mounting groove
- switch
- utility
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The utility model discloses a rocking arm, comprising a U-shaped magnetic carrier. The rocking arm is characterized in that the two free ends of the magnetic carrier are both equipped with hollow magnet installation slots in which magnets are arranged, and the magnetic poles of the relative sides of the two magnets are the same. The rocking arm of the utility model employs a fork structure, increasing the numbers of the magnets and providing appropriate adsorbability to trigger a sensitive switch. Therefore, compared to the prior art, a float switch using the rocking arm of the utility model has the advantages of simple structure, convenient installation, stable transmission signal, etc..
Description
Technical field
The utility model relates to a kind of rocking arm, especially is used to control the rocking arm of sensitive switch in the float switch.
Background technology
At present, the water industry adopts the liquid level float ball switch to control water level mostly.The principle of liquid level float ball switch is, by ball float according to the lifting of water level and lifting, thereby the action of control float switch switch inside comes control of pump or the action of other electric component with output signal, finally satisfies user's needs.Float switch is simple in structure, output is reliable and cost is low, therefore is widely used in places such as water treatment, clear water reserviors, cesspool, fluid chemical raw material, is the plumbing industry, and industries such as sewage treatment industry, chemical industry provide a lot of facilities.
The liquid level float ball switch normally is made up of simple can and setting steel ball and controlled sensitive switch in the enclosure.A kind of elastic component that has switch contact of the general employing of common sensitive switch.When liquid level changed, because buoyancy function, the angle position of ball float changed, thereby caused steel ball in the inner rolling of ball float, utilized the gravity of steel ball to give pressure of elastic component, the break-make of final control circuit.But because the material and the performance of elastic component itself under the bigger occasion of variation of ambient temperature, under the long-term impact of steel ball, finally influence the reliability of switch.Because the size of elastic component is difficult to control, dislocation when dislocation or use easily take place to install is to the installation requirement height.The phenomenon of steel ball shake easily takes place owing to be difficult to control in this float switch, causes the switch misoperation, finally causes output signal inaccurate.In addition, float switch use occasion range size is difficult for controlled, because float switch is that signalizing activity takes place on level angle, therefore need to consider length of cable, thus be only applicable to large-scale waters, and reduced the useful life of equipment.In order to address these problems, a kind of float switch that utilizes magnetic between single magnet and the iron plate to control sensitive switch is disclosed in the Chinese patent 200820039181.9, because the absorption affinity between magnet and the iron plate is stronger, can fully avoid the frequent switch motion of sensitive switch that causes because of water-level fluctuation.But, this float switch part that also comes with some shortcomings, because the absorption affinity of single magnet and iron plate is stronger, therefore not easily separated, so need be provided with counterweight in ball float, the overall weight that increases float switch makes switch disconnect, so increased product cost, and the counterweight amount is wayward, and what can influence the action accuracy of switch, and reliability is relatively poor; Simultaneously owing to the easy oxidation of iron plate, get rusty, therefore contaminated environment is difficult for using controlling in drinking water, and the position of ball float is unadjustable in addition, to different environment for use adaptability deficiencies; Single magnet absorption, the suction deficiency, reliability is relatively poor; The cable sealing of output is not considered.
Summary of the invention
The utility model provides a kind of solution of the above problems, provides a kind of simple in structure, exports the rocking arm that stable float switch is used.
The technical solution of the utility model provides a kind of rocking arm, it comprises that U-shaped carries magnetic portion, it is characterized in that: be provided with the magnet mounting groove of hollow on two free ends of described year magnetic portion, be provided with magnet in the described magnet mounting groove, the magnetic pole of the relative side of two described magnet is identical.
Preferably, the angular range between two of the described year magnetic portion free-ended extended lines is between 0 °～20 °.
Preferably, a described magnet mounting groove side up is provided with opening.
Preferably, the opening part of described magnet mounting groove is provided with a barb-shaped elastic component that prevents that magnet from coming off in the described magnet mounting groove at least.
Preferably, the bottom outside of described year magnetic portion is connected with the pivotal axis of cylindricality.
Preferably, the free end of described pivotal axis is connected with the annular inverted impulse body.
Preferably, the arranged outside of described inverted impulse body has outwards outstanding guide vane end stop.
A kind of rocking arm of the present utility model uses fork configuration, has increased the quantity of magnet, the absorption affinity when suitable triggering sensitive switch is provided; Therefore, relative prior art, advantages such as that the float switch of using rocking arm of the present utility model has is simple in structure, easy for installation, steady signal transmission.
Description of drawings
Fig. 1 is the structural representation of a kind of rocking arm of the present utility model;
Fig. 2 is a structural representation of using the float switch of a kind of rocking arm of the utility model;
Fig. 3 is the assembling schematic diagram of a kind of rocking arm of the present utility model.
Embodiment
Below embodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of rocking arm of the present utility model comprises the magnetic portion 10 of carrying of U-shaped, and two free ends 12 that carry magnetic portion 10 are provided with at grade, two free ends, the 12 mutual slight inclination A that forms an angle, and the scope of included angle A can be 0 °～20 °.All be provided with the magnet mounting groove 14 of a square hollow on two free ends 12.Be provided with magnet 41 in the magnet mounting groove 14.Magnet mounting groove 14 side up is provided with opening 16, and opening 16 places are provided with a barb-shaped elastic component 18, is used to stop magnet to break away from magnet mounting groove 14.The root that carries magnetic portion 10 is connected with the pivotal arm 20 of rod, and the other end of pivotal arm 20 is connected with annular pivotal axis 22; The arranged outside of pivotal axis 22 has outwards outstanding guide vane end stop 24.
As shown in Figures 2 and 3, use float switch of the present utility model and comprise hollow housing 26.Mode by inlay card in the housing 26 is fixed with switch bracket 28.Switch bracket 28 is provided with an outstanding cylinder (not shown), and cylinder passes the hole in the middle of the pivotal axis 22, thereby connects rocking arm 30, as shown in Figure 3.The bigger diameter with cylinder of the diameter of bore of pivotal axis 22, so rocking arm 30 can rotate around cylinder; The angle of its rotation is subjected to the restriction of the guide vane end stop 24 in pivotal axis 22 outsides.The next door of rocking arm 30 is fixed with sensitive switch 32, and in the process of rocking arm 30 rotations, pivotal arm 20 can touch sensitive switch 32, thus the start and stop of control sensitive switch 32.Be vertically installed with the sliding tray 34 of the tubular that is passed down through housing 26 between two free ends 12 of rocking arm 30, the upper end closed of sliding tray 34 also is tightly connected lower ending opening with housing 26 junctions.Sliding tray 34 is a hollow, is provided with the suspension rod 36 of the stock shape that can move up and down along sliding tray 34 in it, and the lower end of suspension rod 36 connects ball float 38.Suspension rod 36 mid portions form a step, and sliding tray 34 is provided with a latch 40 near its lower ending opening place, is used to block the step place of suspension rod 36, avoids suspension rod 36 to come off from sliding tray 34.The top of suspension rod 36 also is provided with the magnet mounting groove 14 of a hollow, is vertically installed with the magnet (not shown) of cheese in it.The magnetic pole of the relative side of two magnet on the free end 12 of rocking arm 30 is identical, this make the mode of pole arrangement of three magnet can be following any one: NS-NS-SN, NS-SN-SN, SN-NS-NS or SN-SN-NS.Housing 26, suspension rod 36, sliding tray 34 and rocking arm 30 etc. are plastic material, have not only reduced cost but also avoid the magnetic force of magnet is produced interference.
Describe according to above technical scheme, the utility model internal circuit mode of connection, can realize following electrical wiring mode according to reality:
1. open type is typically applied in control of pump with drainage pattern work.
2. closed type is typically applied in control of pump with way of supplying water work.
3. the single-pole double throw type is typically applied in control of pump to supply water or drainage pattern work.
Open type, when water level rose, ball float 38 is paramount liquid level along with water level rises, and ball float 38 drives suspension rod 36 simultaneously and up moves.When 30 liang of magnet of magnet process rocking arm at suspension rod 36 tops are middle, the action of a magnetic field takes place, two magnet on the rocking arm 30, one provides repulsive force, and another provides the suction-combining force, so the magnet of suspension rod 36 and rocking arm 30 one of them magnet adhesive.Rocking arm 30 is pivoted to sensitive switch 32 1 sides, and pushes the Action Button of sensitive switch 32, and switch conduction starts the water pump draining.When decline of water table, ball float 38 is along with the extremely low liquid level of decline of water table, because the self gravitation of ball float 38 has overcome the attraction of magnet, therefore having driven suspension rod 36 moves down, the magnet of previous adhesive is separated; rocking arm 30 is pivoted to no sensitive switch 32 1 sides, and sensitive switch 32 disconnects, and water pump quits work.
Closed type, when also promptly using way of supplying water work: when decline of water table, ball float 38 is along with the extremely low liquid level of decline of water table, because the attraction of having obeyed magnet is made every effort to overcome in the deadweight of ball float 38, therefore driven suspension rod 36 and moved down, the magnet of previous adhesive is separated, and rocking arm 30 is pivoted to no sensitive switch 32 1 sides, sensitive switch 32 conductings start water pump and supply water; When water level rose, ball float 38 is paramount liquid level along with water level rises, and ball float 38 drives suspension rod 36 simultaneously and up moves, when 30 liang of magnet of magnet process rocking arm of suspension rod 36 heads are middle, the action of a magnetic field takes place, two magnet on the rocking arm 30, one provides repulsive force, another provides the suction-combining force, therefore magnet and rocking arm 30 one of them magnet adhesive of suspension rod 36, rocking arm 30 is pivoted to sensitive switch 32 1 sides, and pushes the Action Button of sensitive switch 32, sensitive switch 32 disconnects, and water pump quits work.
The single-pole double throw type can realize on a switch that simultaneously two kinds of functions be SPDT single-pole double throw type, and promptly open type and closed type exist simultaneously, answers electrical appliance freely to determine the mode of connection to select to supply water or the working method of draining according to instructions for use.
More than in three kinds of modes because two free ends, the 12 mutual slight inclination of rocking arm 30 make that the magnet on the rocking arm 30 with the magnet on the suspension rod 36 magneticaction takes place mutually, cause rocking arm 30 about pivot swing the start and stop that can control sensitive switch 32.
As from the foregoing; rocking arm 30 of the present utility model is Y shape structures; and carry magnetic portion 10 are U-shaped structures; it cooperates with suspension rod 36, utilizes the magnetic of three magnet to control the swing of rocking arm 30, thereby suitable absorption affinity and repulsive force is provided; closed or the disconnection of control sensitive switch; therefore stable output signal has been avoided waveform output, also indirect protection equipment such as outside water pump.
Above embodiment only is the utility model a kind of execution mode wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. rocking arm, it comprises that U-shaped carries magnetic portion, is characterized in that: be provided with the magnet mounting groove of hollow on two free ends of described year magnetic portion, be provided with magnet in the described magnet mounting groove, the magnetic pole of the relative side of two described magnet is identical.
2. a kind of rocking arm according to claim 1 is characterized in that: the angular range between the two free-ended extended lines of described year magnetic portion is between 0 °～20 °.
3. a kind of rocking arm according to claim 1 is characterized in that: a described magnet mounting groove side up is provided with opening.
4. a kind of rocking arm according to claim 3 is characterized in that: the opening part of described magnet mounting groove is provided with a barb-shaped elastic component that prevents that magnet from coming off in the described magnet mounting groove at least.
5. a kind of rocking arm according to claim 1 is characterized in that: the bottom outside of described year magnetic portion is connected with the pivotal axis of cylindricality.
6. a kind of rocking arm according to claim 5 is characterized in that: the free end of described pivotal axis is connected with the annular inverted impulse body.
7. a kind of rocking arm according to claim 6 is characterized in that: the arranged outside of described inverted impulse body has outwards outstanding guide vane end stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201037236U CN202013845U (en) | 2011-04-11 | 2011-04-11 | Rocking arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201037236U CN202013845U (en) | 2011-04-11 | 2011-04-11 | Rocking arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013845U true CN202013845U (en) | 2011-10-19 |
Family
ID=44784460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201037236U Expired - Lifetime CN202013845U (en) | 2011-04-11 | 2011-04-11 | Rocking arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009445A (en) * | 2019-12-29 | 2020-04-14 | 国网山东省电力公司潍坊供电公司 | Oil leakage monitoring float switch of oil-immersed transformer oil discharge nitrogen injection equipment pipeline |
-
2011
- 2011-04-11 CN CN2011201037236U patent/CN202013845U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009445A (en) * | 2019-12-29 | 2020-04-14 | 国网山东省电力公司潍坊供电公司 | Oil leakage monitoring float switch of oil-immersed transformer oil discharge nitrogen injection equipment pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102163517B (en) | Vertical float switch | |
| CN205828270U (en) | A kind of water pump mechanical type switch | |
| CA2060748A1 (en) | Float switch assembly | |
| CN202013845U (en) | Rocking arm | |
| CN202120818U (en) | Vertical type floating ball switch | |
| CN203011491U (en) | Liquid level alarm device | |
| CN203249676U (en) | Monitoring device for liquid level of nonmetal container | |
| CN203133619U (en) | Ball float-type liquid level controller | |
| CN203456377U (en) | Dehumidifier | |
| CN206490025U (en) | A kind of liquid-level switch for being capable of steady operation in various aquatic environments | |
| CN202329748U (en) | Liquid level detecting device and solar water heater | |
| CN201146155Y (en) | Apparatus for limiting storehouse door position | |
| CN201417711Y (en) | Magnetic switch | |
| CN201037256Y (en) | Full-water switching control apparatus | |
| CN2522840Y (en) | Electronic single-pendulum material positioning detecting instrument | |
| CN219435763U (en) | Floating ball liquid level switch | |
| CN201845699U (en) | Float ball multistage liquid level control switching device | |
| CN201785811U (en) | Automatic water tower compensator | |
| CN201298175Y (en) | Water level controlling switch device and water pump controller | |
| CN216288174U (en) | Adjustable liquid level switch | |
| CN201215630Y (en) | Full-automatic liquid level controller | |
| CN2199554Y (en) | Liquid level controller | |
| CN202510327U (en) | Magnetic water level control water pump | |
| CN201298280Y (en) | A domestic seismic alarm | |
| CN201247089Y (en) | Two-way pipe liquid level sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |
|
| CX01 | Expiry of patent term |