CN208887731U - A kind of blocking rotary type level-sensing device of high reliablity - Google Patents
A kind of blocking rotary type level-sensing device of high reliablity Download PDFInfo
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- CN208887731U CN208887731U CN201821138453.0U CN201821138453U CN208887731U CN 208887731 U CN208887731 U CN 208887731U CN 201821138453 U CN201821138453 U CN 201821138453U CN 208887731 U CN208887731 U CN 208887731U
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Abstract
The utility model discloses a kind of blocking rotary type level-sensing devices of high reliablity, including the supporting plate being set in the housing, first stroke switch and second stroke switch are respectively arranged at orbit hole both sides, first briquetting tail portion is articulated on the first pivot pin, second briquetting tail portion is articulated on the second pivot pin, elastic element is equipped between first briquetting front and the second briquetting front, first briquetting underside of forward, which is stretched, has first to press plate, first presses plate is in contact with first stroke switch, second briquetting underside of forward, which is stretched, has second to press plate, it presses bar and is arranged in orbit hole and is located at first and press plate and second and press between plate, first presses plate or second presses plate and can all be made first to press plate and second by the pressing for pressing bar and press plate and make angularly opening movement.Even if the phenomenon that the utility model motor body breaks down, rotating forward has occurred, it can similarly ensure that material detection is normal, greatly ensure enterprise's production requirement, prevented from causing any property loss.
Description
Technical field
The utility model relates to level-sensing device fields, relate in particular to a kind of blocking rotary type level-sensing device of high reliablity.
Background technique
Also some is referred to as to hinder rotation level meter or resistance rotation level switch, resistance rotation level switch etc. resistance rotation level-sensing device, mainly
Be according to the different calls of its specific different purposes, it is functionally all similar.Anti-rotation type material level switch is micro- using exchanging
Motor drives detection blade to rotate at a slow speed after slowing down.When the rising of the material position of tested material stops the rotation of blade,
Testing agency's main shaft generates swing offset.This displacement makes a microswitch movement first, issues the signal for having material.It is then another
A microswitch movement, the power supply for cutting off micro machine make it stop operating.As long as the material position in storehouse is constant, such state is just by one
Directly keep.When material position, which declines detection blade, loses blocking, testing agency just relies on extension spring pulling force to restore ortho states.Control
The microswitch of micro-motor power supply processed acts, and rotates electrical power.Subsequent another microswitch movement issues signal, as long as
There is no material to stop the rotation of detection blade, such state will be also always maintained at down.
Such as: 203428311 U of Chinese utility model patent specification CN (announcing on February 12nd, 2014) discloses one kind
Blocking rotary type level switch, it includes a shell, a driving device, two automotives, an elastic element, a clutch, a transmissions
Axis and a blade；Usually, the actuation section of the noncircular cross section of the elastic clip sandwiched transmission shaft of clutch, therefore when driving device is driven
When dynamic clutch rotation, clutch can related transmission shaft and blade rotation；And make when blade external force excessive by one suddenly
When transmission shaft quick rotation, since elastic clip only passes through elastic force sandwiched transmission shaft, the transmission shaft of quick rotation can strut bullet
Property folder and relative resilient folder rotation, then can avoid the external force transmitting and injury driving device；And clutch only includes a clutch
Frame and an elastic clip can reach above-mentioned effect, therefore its simple structure, and relative inexpensiveness.
But the blocking rotary type level switch of above-mentioned disclosure when in use it is necessary to make when material prevent blade rotate when, drive
The portion of pressing of dynamic device must turn to the press section for abutting to the second automotive from the first automotive of pressing, in this way
It could ensure that blocking rotary type level switch detection material is normal.But technical staff runs into detection material failure in actual production
Emergency case, i.e., material prevent blade rotate when, the portion of pressing of driving device does not invert rotation, instead rotate forward rotate always
The first automotive is pressed, material is eventually led to and accumulates full warehouse always, lead to extreme loss.It traces it to its cause: being because of motor
It breaks down, quality is irregular bad, and the case where causing motor body that should invert is to rotate forward always instead.
Utility model content
It is existing to overcome the technical problem to be solved by the present invention is to provide a kind of blocking rotary type level-sensing device of high reliablity
Blocking rotary type level-sensing device haves the defects that detect material failure in technology.
In order to solve the above technical problems, the blocking rotary type level-sensing device of the high reliablity of the utility model includes shell, the shell
It is provided with motor suspension in vivo, motor suspension is connected with motor, and motor output rod connection transmission shaft simultaneously drives transmission shaft to rotate, passes
The moving axis other end is stretched out in outside shell and is connect with blade；It further include the supporting plate being set in the housing, the supporting plate is equipped with orbit hole,
First stroke switch and second stroke switch are respectively arranged at orbit hole both sides, and the supporting plate is equipped with the first pivot pin, the second axis
Pin, the first briquetting tail portion are articulated on the first pivot pin, and the second briquetting tail portion is articulated on the second pivot pin, the first briquetting tail
Side is equipped with pillar, and the second briquetting caudal is equipped with recessed column, and pillar is matched with recessed column, and first briquetting front and second is pressed
Elastic element is equipped between briquetting front, the first briquetting underside of forward, which is stretched, has first to press plate, and first presses plate and the
First press section of one stroke switch is in contact, and the second briquetting underside of forward, which is stretched, has second to press plate, and second presses plate
With the second press section gap setting of second stroke switch, motor suspension top is equipped with rotary shaft, presses bar, and rotary shaft can prop up
Rotated back and forth on plate, press bar and be arranged in orbit hole and be located at first and press plate and second and press between plate, press bar with it is defeated
The axle center of rod is different, and first presses plate or second press plate and can all be made first to press plate and the by the pressing for pressing bar
Two, which press plate, makees angularly opening movement.
Wherein, the motor is synchronous motor.
Wherein, the elastic element is extension spring.
Wherein, the output rod is identical as rotary shaft axle center.
Wherein, the pillar is equipped with external tooth, and the recessed column is equipped with internal tooth, and the external tooth is meshed with internal tooth.
Wherein, first briquetting front and the second briquetting front are respectively symmetrically equipped with multiple jacks, extension spring
Both ends are connected in the jack of the first briquetting front and the second briquetting front.
Wherein, the motor output rod connects clutch, and motor output rod drives clutch rotation, clutch pack contain from
Frame and elastic clip are closed, clutch rack does not connect motor output rod rotatably, and one end of the adjacent shell of transmission shaft is actuation section,
The cross section of actuation section be it is non-circular, clutch rack is arranged the actuation section of transmission shaft, and elastic clip is arranged in clutch rack, and sandwiched passes
The actuation section of moving axis, and selectively strutted by actuation section.
In order to solve the above technical problems, the blocking rotary type level-sensing device of the high reliablity of the utility model includes shell, the shell
It is provided with motor suspension in vivo, motor suspension is connected with motor, and motor output rod connection transmission shaft simultaneously drives transmission shaft to rotate, passes
The moving axis other end is stretched out in outside shell and is connect with blade；It further include the bracket being set in the housing, supporting plate, the bracket is equipped with fan
Ye Kong, the supporting plate are equipped with orbit hole, and first stroke switch, second stroke switch are connected between bracket and supporting plate, and
First stroke switch and second stroke switch are respectively arranged at orbit hole both sides, and the bracket is equipped with pedestal, on the pedestal
Equipped with the first pivot pin, the second pivot pin, the first briquetting tail portion is articulated on the first pivot pin, and the second briquetting tail portion is articulated with second
On pivot pin, the first briquetting caudal is equipped with pillar, and the second briquetting caudal is equipped with recessed column, and pillar matches with recessed column, and described the
Elastic element is equipped between one briquetting front and the second briquetting front, the first briquetting underside of forward, which is stretched, the first touching
Pressing plate, first presses that plate wears flabellum hole to be in contact with the first press section that first stroke switchs, second briquetting front
Downside, which is stretched, has second to press plate, and second presses the second press section gap setting that plate wears flabellum hole and second stroke switch, electricity
Machine suspension top is equipped with rotary shaft, presses bar, and rotary shaft can rotate back and forth on supporting plate, presses bar and is arranged in orbit hole simultaneously position
It presses plate and second in first to press between plate, it is different from the axle center of output rod to press bar, and first presses plate or second press
Plate can all first to press plate and second to press plate and make angularly opening movement by the pressing for pressing bar.
Wherein, the pedestal includes upper plate and lower plate, and upper plate is connected with lower plate two sides by cylinder.
Wherein, the motor is synchronous motor.
Wherein, the elastic element is extension spring.
Wherein, the output rod is identical as rotary shaft axle center.
Wherein, the pillar is equipped with external tooth, and the recessed column is equipped with internal tooth, and the external tooth is meshed with internal tooth.
Wherein, first briquetting front and the second briquetting front are respectively symmetrically equipped with multiple jacks, extension spring
Both ends are connected in the jack of the first briquetting front and the second briquetting front.
Wherein, the motor output rod connects clutch, and motor output rod drives clutch rotation, clutch pack contain from
Frame and elastic clip are closed, clutch rack does not connect motor output rod rotatably, and one end of the adjacent shell of transmission shaft is actuation section,
The cross section of actuation section be it is non-circular, clutch rack is arranged the actuation section of transmission shaft, and elastic clip is arranged in clutch rack, and sandwiched passes
The actuation section of moving axis, and selectively strutted by actuation section.
Compared with prior art, the utility model has the beneficial effects that being rotated forward even if motor body breaks down
The phenomenon that, it can similarly ensure that material detection is normal, greatly ensure enterprise's production requirement, prevented from causing any property loss.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the blocking rotary type level-sensing device of the utility model high reliablity；
Fig. 2 is the first partial structural schematic diagram of the blocking rotary type level-sensing device of the utility model high reliablity；
Fig. 3 is the second partial structural diagram of the blocking rotary type level-sensing device of the utility model high reliablity；
Fig. 4 is the schematic view of the front view of the blocking rotary type level-sensing device of the utility model high reliablity；
Fig. 5 is the decomposition texture schematic diagram in Fig. 2；
Fig. 6 is the third partial structural diagram of the blocking rotary type level-sensing device of the utility model high reliablity；
Fig. 7 is the first decomposition texture schematic diagram in Fig. 6；
Fig. 8 is the second decomposition texture schematic diagram in Fig. 6.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Embodiment one
As shown in Fig. 1,2,3,4,5, the blocking rotary type level-sensing device of the high reliablity of the present embodiment includes shell 1, the shell
It is inside provided with motor suspension 2, motor suspension bottom is connected with motor 3 by screw 21, and preferably motor is synchronous motor.Motor is defeated
Rod is eccentric to be set on motor body 20.The motor output rod 4 connects clutch, and the one side of motor output rod is recessed with
One standstill face 5, motor output rod drive clutch rotation, and clutch pack contains clutch rack and elastic clip, and clutch rack can not be opposite
Rotationally connect motor output rod, one end of the adjacent shell of transmission shaft 6 is actuation section, the cross section of actuation section be it is non-circular, from
The actuation section that frame is arranged transmission shaft is closed, elastic clip is arranged in clutch rack, and the actuation section of sandwiched transmission shaft, and selectively
It is strutted by actuation section.The transmission shaft other end is stretched out in outside shell and is connect with blade 7；Blocking rotary type level-sensing device further includes being set in the housing
Supporting plate 8, the supporting plate be equipped with orbit hole 9, first stroke switch 10 and second stroke switch 11 are respectively arranged at orbit hole
Both sides, the supporting plate are equipped with the first pivot pin 12, the second pivot pin 13, and 14 tail portion of the first briquetting is articulated on the first pivot pin, the
Two briquettings, 15 tail portion is articulated on the second pivot pin, and the first briquetting caudal is equipped with pillar 16, and the second briquetting caudal is equipped with recessed
Column 17, pillar are matched with recessed column, and connection has elastic component 18 between first briquetting front and the second briquetting front,
Elastic element is extension spring, first briquetting front and the second briquetting front be respectively symmetrically equipped with multiple jacks 19,
22, jack is horizontally spaced about, and every row sets there are four jack, and extension spring both ends are connected to the first briquetting front and the
In the jack of two briquetting fronts.The first briquetting underside of forward, which is stretched, has first to press plate 23, and first presses plate and first
First press section 24 of travel switch is in contact, and the second briquetting underside of forward, which is stretched, has second to press plate 25, and second presses
26 gap setting of the second press section of plate and second stroke switch, it is therefore an objective to first stroke switch first be allowed to trigger first.Motor is outstanding
Frame top is equipped with rotary shaft 27, presses bar 28, and rotary shaft can rotate back and forth on supporting plate, presses bar and is arranged in orbit hole simultaneously position
Plate and second is pressed in first to press between plate, pressing bar can move in orbit hole, and it is different from the axle center of output rod to press bar,
First presses plate or second presses plate and can all be made first to press plate and second by the pressing for pressing bar and press plate and make isogonism
Opening movement is spent, when not by the pressing for pressing bar, extension spring can press plate and second for first and press plate and angularly close
It rises.The output rod is identical as rotary shaft axle center.
When the utility model is used, it being fixed on warehouse outer wall using the installing of connecting flange 29, transmission shaft protrudes into warehouse,
And it is electrically connected to control system.The output rod of motor drives the connector of clutch to rotate, connector drive clutch rack, and from
Conjunction frame, which then drives, is installed in elastic clip rotation therein, and elastic clip drives the transmission shaft of sandwiched and its blade of bottom end to turn together
It is dynamic.When the material in warehouse is gradually accumulated and touches blade, material can generate a resistance to prevent blade and transmission shaft from turning
It is dynamic；When material accumulation is higher and higher, and it is increasing with the area of blade contact when, which also and then becomes larger, and finally just makes
Transmission shaft can not continue to rotate；Since resistance is gradually increased, transmission shaft is limited to the elastic force of elastic clip and still can not be by bullet
Property folder strut, so the output rod of the related clutch of transmission shaft and motor can not all rotate；But since motor is still kept out at this time
State is opened, therefore the output rod of motor is bound to rotate relative to motor body, so will change reversely relatively defeated by motor body
Rod rotation (may also can be rotated there is a situation where positive relative to output rod) when motor breaks down, and motor body 20 rotates
While rotated together again with motor suspension, the rotary shaft of motor suspension is rotated around supporting plate, and then makes to press bar in track
Hole is mobile, press bar it is mobile while can press first and press plate or second press plate, that is, press that bar pressing is any to press plate
First will be made to press plate and second to press plate and make angularly opening movement, this allows for first and press plate pressing first first
Press section will close feeding mechanism and continue feeding (present embodiment assumes that first stroke switch is for controlling feeder to warehouse
The opening and closing of structure)；Then (first, which presses plate, contacts setting, the second touching with the first press section for second touching the second press section of platen presses
Therefore pressing plate and the second press section gap setting can first press the first press section always), will closing motor, (the present embodiment is false
If second stroke switch is for controlling motor opening and closing).When material, which drops to blade, loses blocking, extension spring can be by the first touching
Pressing plate and second presses plate and angularly closes recovery ortho states.The second stroke switch motion for controlling motor power, makes electricity first
Machine, which is powered, to be rotated；Then first travel switch movement again, opens feeding mechanism and continues feeding to warehouse.
Embodiment two
As shown in Fig. 6,7,8, the present embodiment two is basically the same as the first embodiment, the difference is that in the present embodiment can
The blocking rotary type level-sensing device high by property, including bracket 30, the supporting plate being set in the housing, the bracket is equipped with flabellum hole 31, described
Supporting plate is equipped with orbit hole, and first stroke switch, second stroke switch are connected between bracket and supporting plate, and first stroke is opened
It closes and second stroke switch is respectively arranged at orbit hole both sides, the bracket is equipped with pedestal 32, and the pedestal includes upper plate 33
With lower plate 34, upper plate and lower plate two sides are connected by cylinder 35,36.Middle part is equipped with the first pivot pin 37, the second axis on the pedestal
Pin 38, the first briquetting tail portion are articulated on the first pivot pin, and the second briquetting tail portion is articulated on the second pivot pin, the first briquetting
Caudal is equipped with pillar, and the second briquetting caudal is equipped with recessed column, and the pillar is equipped with external tooth 39, and the recessed column is equipped with internal tooth
40, the external tooth be meshed with internal tooth (in the present embodiment can also the first briquetting caudal be equipped with the pillar with external tooth, second
Briquetting caudal is equipped with the pillar with external tooth, and two outer tooth engagements, as long as any briquetting is opened, another briquetting also can be simultaneously
It opens, principle is consistent).Elastic element is equipped between first briquetting front and the second briquetting front, described first presses
Briquetting underside of forward, which is stretched, has first to press plate 41, and first, which presses plate, wears the first press section phase that flabellum hole is switched with first stroke
Contact, the second briquetting underside of forward, which is stretched, has second to press plate 42, and second, which presses plate, wears flabellum hole and open with second stroke
The the second press section gap setting closed, motor suspension top are equipped with rotary shaft, press bar, and rotary shaft can circle round on supporting plate
Turn, press bar and be arranged in orbit hole and be located at first and press plate and second and press between plate, presses the axle center of bar and output rod
Difference, first press plate or second press plate by the pressing for pressing bar can all make first press plate and second press plate make
Angularly opening movement.
Even if the utility model motor breaks down, have occurred motor body rotate forward the phenomenon that, i.e., the utility model regardless of
It is that motor body is rotated forward or inverted, all can equally ensures that material detection is normal, greatly ensure enterprise's production requirement, prevented
Only cause any property loss.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (15)
1. a kind of blocking rotary type level-sensing device of high reliablity, including shell, motor suspension is provided in the shell, motor suspension connects
It is connected to motor, motor output rod connection transmission shaft simultaneously drives transmission shaft to rotate, and the transmission shaft other end stretches out in outside shell and blade
Connection；
It is characterized by also including the supporting plate being set in the housing, the supporting plate is equipped with orbit hole, first stroke switch and second
Travel switch is respectively arranged at orbit hole both sides, and the supporting plate is equipped with the first pivot pin, the second pivot pin, the first briquetting tail portion hinge
It is connected on the first pivot pin, the second briquetting tail portion is articulated on the second pivot pin, and the first briquetting caudal is equipped with pillar, the second pressing
Block caudal is equipped with recessed column, and pillar is matched with recessed column, and bullet is equipped between first briquetting front and the second briquetting front
Property element, the first briquetting underside of forward, which is stretched, has first to press plate, first press the first of plate and first stroke switch by
Splenium is in contact, and the second briquetting underside of forward, which is stretched, has second to press plate, and second presses the of plate and second stroke switch
Two press section gap settings, motor suspension top are equipped with rotary shaft, press bar, and rotary shaft can be rotated back and forth on supporting plate, be pressed
Bar is arranged in orbit hole and is located at first and presses plate and second and press between plate, and it is different from the axle center of output rod to press bar, the
One press plate or second press plate by the pressing for pressing bar can all make first press plate and second press plate make angularly
Opening movement.
2. the blocking rotary type level-sensing device of high reliablity according to claim 1, it is characterised in that: the motor is to synchronize electricity
Machine.
3. the blocking rotary type level-sensing device of high reliablity according to claim 1, it is characterised in that: the elastic element is to stretch
Spring.
4. the blocking rotary type level-sensing device of high reliablity according to claim 1, it is characterised in that: the output rod and rotary shaft
Axle center is identical.
5. the blocking rotary type level-sensing device of high reliablity according to claim 1, it is characterised in that: the pillar is equipped with outer
Tooth, the recessed column are equipped with internal tooth, and the external tooth is meshed with internal tooth.
6. the blocking rotary type level-sensing device of high reliablity according to claim 3, it is characterised in that: first briquetting front
Multiple jacks are respectively symmetrically equipped with the second briquetting front, extension spring both ends are connected to the first briquetting front and
In the jack of two briquetting fronts.
7. the blocking rotary type level-sensing device of high reliablity according to any one of claim 1 to 6, it is characterised in that: the electricity
Machine output rod connects clutch, and motor output rod drives clutch rotation, and clutch pack contains clutch rack and elastic clip, clutch rack
Motor output rod is not connected rotatably, and one end of the adjacent shell of transmission shaft is actuation section, and the cross section of actuation section is non-
Circle, clutch rack are arranged the actuation section of transmission shaft, and elastic clip is arranged in clutch rack, and the actuation section of sandwiched transmission shaft, and
Selectively strutted by actuation section.
8. a kind of blocking rotary type level-sensing device of high reliablity, including shell, motor suspension is provided in the shell, motor suspension connects
It is connected to motor, motor output rod connection transmission shaft simultaneously drives transmission shaft to rotate, and the transmission shaft other end stretches out in outside shell and blade
Connection；
It is characterized by also including the bracket being set in the housing, supporting plate, the bracket is equipped with flabellum hole, sets on the supporting plate
There is orbit hole, first stroke switch, second stroke switch are connected between bracket and supporting plate, and first stroke switch and second
Travel switch is respectively arranged at orbit hole both sides, and the bracket is equipped with pedestal, and the pedestal is equipped with the first pivot pin, the second axis
Pin, the first briquetting tail portion are articulated on the first pivot pin, and the second briquetting tail portion is articulated on the second pivot pin, the first briquetting tail
Side is equipped with pillar, and the second briquetting caudal is equipped with recessed column, and pillar is matched with recessed column, and first briquetting front and second is pressed
Elastic element is equipped between briquetting front, the first briquetting underside of forward, which is stretched, has first to press plate, and first, which presses plate, wears
Flabellum hole is in contact with the first press section that first stroke switchs, and the second briquetting underside of forward, which is stretched, has second to press plate,
Second presses the second press section gap setting that plate wears flabellum hole and second stroke switch, and motor suspension top is equipped with rotation
Axis presses bar, and rotary shaft can rotate back and forth on supporting plate, presses bar and is arranged in orbit hole and presses plate and second positioned at first
It presses between plate, presses that bar is different from the axle center of output rod, first presses plate or second press plate by the pressing for pressing bar
First will be made to press plate and second and press plate work angularly opening movement.
9. the blocking rotary type level-sensing device of high reliablity according to claim 8, it is characterised in that: the pedestal include upper plate and
Lower plate, upper plate and lower plate two sides are connected by cylinder.
10. the blocking rotary type level-sensing device of high reliablity according to claim 8 or claim 9, it is characterised in that: the motor is to synchronize
Motor.
11. the blocking rotary type level-sensing device of high reliablity according to claim 8 or claim 9, it is characterised in that: the elastic element is
Extension spring.
12. the blocking rotary type level-sensing device of high reliablity according to claim 8 or claim 9, it is characterised in that: the output rod and rotation
Rotating shaft core is identical.
13. the blocking rotary type level-sensing device of high reliablity according to claim 8 or claim 9, it is characterised in that: the pillar is equipped with
External tooth, the recessed column are equipped with internal tooth, and the external tooth is meshed with internal tooth.
14. the blocking rotary type level-sensing device of high reliablity according to claim 11, it is characterised in that: before first briquetting
Portion and the second briquetting front are respectively symmetrically equipped with multiple jacks, extension spring both ends be connected to the first briquetting front and
In the jack of second briquetting front.
15. the blocking rotary type level-sensing device of high reliablity according to claim 8 or claim 9, it is characterised in that: the motor output rod
Clutch is connected, motor output rod drives clutch rotation, and clutch pack contains clutch rack and elastic clip, and clutch rack can not be opposite
Motor output rod is rotationally connected, one end of the adjacent shell of transmission shaft is actuation section, and the cross section of actuation section is non-circular, clutch
Frame is arranged the actuation section of transmission shaft, and elastic clip is arranged in clutch rack, and the actuation section of sandwiched transmission shaft, and selectively by
Actuation section struts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138453.0U CN208887731U (en) | 2018-07-18 | 2018-07-18 | A kind of blocking rotary type level-sensing device of high reliablity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138453.0U CN208887731U (en) | 2018-07-18 | 2018-07-18 | A kind of blocking rotary type level-sensing device of high reliablity |
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| CN208887731U true CN208887731U (en) | 2019-05-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709599A (en) * | 2018-07-18 | 2018-10-26 | 宁波永森机械制造有限公司 | A kind of blocking rotary type level-sensing device that reliability is high |
-
2018
- 2018-07-18 CN CN201821138453.0U patent/CN208887731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709599A (en) * | 2018-07-18 | 2018-10-26 | 宁波永森机械制造有限公司 | A kind of blocking rotary type level-sensing device that reliability is high |
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