CN207923371U - A kind of station adjusting mechanism of motor housing leak-testing apparatus - Google Patents
A kind of station adjusting mechanism of motor housing leak-testing apparatus Download PDFInfo
- Publication number
- CN207923371U CN207923371U CN201820284617.4U CN201820284617U CN207923371U CN 207923371 U CN207923371 U CN 207923371U CN 201820284617 U CN201820284617 U CN 201820284617U CN 207923371 U CN207923371 U CN 207923371U
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- China
- Prior art keywords
- sealing
- motor housing
- ring
- water
- station
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Abstract
The utility model provides a kind of station adjusting mechanism of motor housing leak-testing apparatus, belongs to detection technique field.It solves the technical problems such as existing motor housing leak-testing apparatus accuracy deficiency.The station adjusting mechanism of this motor housing leak-testing apparatus, detection device includes cabinet, monitor station is fixed in cabinet, this station adjusts structure setting on monitor station, including the detection boss being rotatably connected on monitor station, rotation slot is provided in the middle part of monitor station, detection boss is rotatably connected in rotation slot, it is arranged on the outside of detection boss and is fixed with ring gear, it is embedded positioned at the side of rotation slot on monitor station and is fixed with driving motor, driving gear is fixed on the motor shaft of driving motor, driving gear is engaged with ring gear.The utility model has the advantages that the station of motor housing can be adjusted before water filling detects.
Description
Technical field
The utility model belongs to detection technique field, is related to a kind of station adjustment machine of motor housing leak-testing apparatus
Structure.
Background technology
Motor housing is made of casting technique, and motor housing is casting, and casting can have micropore, it is therefore desirable to
Being sealed property of motor housing is detected, the motor housing with micropore is screened.The detection mode used at present is to adopt
It is carried out with the mode of airtight detection, what general air-leakage test was mainly realized by detecting the variation of air pressure, but air pressure
Detection there is fluctuation, cause some defect wares by by or certified products screened out, detection accuracy is insufficient.
Invention content
The purpose of this utility model is the presence of the above problem in view of the prior art, it is proposed that a kind of motor housing leakproofness
The technical issues of station adjusting mechanism of detection device, the utility model solves, can adjust motor housing before water filling detects
Station.
The purpose of this utility model can be realized by following technical proposal：
A kind of station adjusting mechanism of motor housing leak-testing apparatus, detection device includes cabinet, in the cabinet
It is fixed with monitor station, which is characterized in that this station adjusts structure setting on monitor station, including is rotatably connected on monitor station
Boss is detected, rotation slot is provided in the middle part of the monitor station, the detection boss is rotatably connected in rotation slot, and the detection is convex
It is arranged on the outside of platform and is fixed with ring gear, be embedded positioned at the side of rotation slot on the monitor station and be fixed with driving motor, the drive
It is fixed with driving gear on the motor shaft of dynamic motor, the driving gear is engaged with ring gear.
By driving motor energy fine rotational rotating boss, to which the motor housing that will be located on rotating boss turns to
Detection station ensures sealing of the motor housing in water filling.
In the station adjusting mechanism of above-mentioned motor housing leak-testing apparatus, the interior corner of the rotation slot opens
Equipped with several rolling recesses, the lower corner of the detection boss is provided with rolling groove in a ring, the slot of the rolling groove
Face is spherical surface, is rolled in each rolling recess and is connected with steel ball, the steel ball protrudes into rolling recess, and the steel ball protrudes into
The part for rolling recess rolls embedded roll into groove.It can realize that detection boss is rotatably connected on monitor station by above structure
And ensure that detection boss rotation is smooth.
In the station adjusting mechanism of above-mentioned motor housing leak-testing apparatus, the bottom of the cabinet is fixed with water
Case, detection boss, which is equipped with, to be sealed the lower port of motor housing when the motor housing is placed on vertically on detection boss
Lower sealing structure, limbers is offered in the middle part of the detection boss, is equipped with down positioned at the lower section of monitor station in the cabinet
Crane, water injection pipe is vertically fixed on the lower crane, and the water injection pipe passes through monitor station and stretches into limbers and note
The outer wall of water pipe can be connected to the inner wall sealing of limbers, the water injection pipe by water pipe and water tank.
Motor housing is placed on detection boss by manipulator when detection, by detecting the lower sealing structure on boss
The lower port of motor housing is sealed, while rotating detection boss and motor housing is made to turn to detection station, middle sealing at this time
Structure can seal the hole in the middle part of motor housing, then descend crane to move down and make upper sealing structure by the upper end of motor housing
Mouth is closed, and the opening on motor housing is all sealed at this time, and water injection pipe rises under the drive of lower crane and penetrates limbers
Interior, the water filling into motor housing after water injection pipe and the inner wall sealing of limbers fills and keeps certain in the motor housing after water
Hydraulic pressure is observed on motor housing either with or without infiltration, if not seeping water, motor housing is certified products, if infiltration, for defect ware,
Motor housing is discharged by manipulator, completes detection；The detection to motor housing leakproofness is realized by high pressure water, it can be accurate
Detect on motor housing whether there is micropore, improve the accuracy of detection.
In the station adjusting mechanism of above-mentioned motor housing leak-testing apparatus, the limbers is located at detection boss
The aperture of upper end is sealing necking, and the upper end of the water injection pipe has the sealed end in truncated cone-shaped, is cased on the sealed end close
Sealing cover, when the sealed end of the water injection pipe is inserted into sealing necking, the seal closure can seal against the inner wall of sealing necking
On.It is avoided that water flows out between water injection pipe and limbers after charging by above structure, ensures motor casing when water filling detection
Internal hydraulic pressure.
In the station adjusting mechanism of above-mentioned motor housing leak-testing apparatus, the hypomere of the sealing necking opens up
There is the card slot of annular, inner seal ring, the inner wall of the inside protrusion sealing necking of the inner seal ring, institute are offered on the card slot
The upper side for stating the inner wall of inner seal ring protrusion sealing necking is upper sealing ring face, and the diameter in the upper sealing ring face is from up to down
It is gradually reduced, the lower face of the seal closure is lower sealing ring face, and sealing necking when institute is inserted into the sealed end of the water injection pipe
Stating lower sealing ring face can lean on upper sealing ring face paste.The sealing between water injection pipe and limbers can be further increased with this configuration
Intensity is avoided that water flows out between water injection pipe and limbers after charging, ensures the hydraulic pressure in electric machine casing when water filling detection.
In the station adjusting mechanism of above-mentioned motor housing leak-testing apparatus, the lower sealing structure includes sealing
Set and exterior seal ring, the sealing shroud include the diaphragm seal of tubular sealing shroud portion and integrated molding in sealing shroud portion one end
Portion, the sealing shroud portion, which is arranged, to be fixed on detection boss, and the diaphragm seal portion and the upper side of detection boss seal against, institute
State the junction that exterior seal ring is sleeved on diaphragm seal portion and sealing shroud portion.When mounted, electric machine casing is sleeved on sealing shroud, motor casing
The inner wall of body can be sealed with sealing shroud portion, and the lower face of electric machine casing is sealed with diaphragm seal portion, exterior seal ring and electric machine casing
The inside edge of lower port seals against, and realizes sealing by three seals face, ensures the sealing of electric machine casing lower port.
Have in the station adjusting mechanism of above-mentioned motor housing leak-testing apparatus, on the detection boss is in ring
The rib of shape forms water receiving tank between the rib and detection boss, is provided with several collector nozzles on the rib, on the cabinet
It is fixed with sewer pipe, the lower end of the sewer pipe is connected to water tank, and the upper end of the sewer pipe, which is fixed, is communicated with water guide
Ring is provided with guiding gutter on the medial surface of the water guiding ring, and the sewer pipe is connected to guiding gutter, and the water guiding ring is sleeved on rib
The upper and guiding gutter of water guiding ring is connected to several collector nozzles, by two seal ring seals between the water guiding ring and rib,
Two sealing rings are located at the both sides up and down of guiding gutter.Upon completion of the assays, water drippage, drop are had on the electric machine casing of taking-up
The water fallen is recycled by the way that water receiving tank is unified, and the water of recycling flows out water receiving tank by collector nozzle and flows into water guiding ring, in water guiding ring
Water flow to sewer pipe by guiding gutter, is finally recycled in water tank；Water guiding ring can detect boss rotation when always with lower water
Mouth connection, water guiding ring and detection boss are sealed when relatively rotating by sealing ring guarantee.
In the station adjusting mechanism of above-mentioned motor housing leak-testing apparatus, it is fixed with water pump in the water tank,
The water outlet port of the water pump is connected to water pipe.
Compared with prior art, the station adjusting mechanism of this motor housing leak-testing apparatus has and can be detected in water filling
The advantages of station of preceding adjustment motor housing.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the detection device of this motor housing leakproofness.
Fig. 2 is the close-up schematic view and partial enlarged view in the portions A in Fig. 1.
Fig. 3 is the close-up schematic view in the portions B in Fig. 1.
In figure, 1, cabinet；11, monitor station；2, water tank；21, water pump；22, water pipe；3, boss is detected；31, limbers；32、
Seal necking；33, card slot；34, inner seal ring；35, upper sealing ring face；4, lower crane；41, water injection pipe；42, seal closure；5、
Upper crane；51, upper lifting cylinder；52, gasket；53, mounting groove；54, roll shaft；55, pressure sensor；6, driving motor；
61, gear is driven；62, ring gear；63, steel ball；7, sealing shroud；71, sealing shroud portion；72, diaphragm seal portion；73, exterior seal ring；8、
Rib；81, water receiving tank；82, collector nozzle；83, sewer pipe；84, water guiding ring；85, guiding gutter；86, sealing ring；9, stretch gas
Cylinder；91, sealing strip；92, sealed batten；93, sealing column；94, interior sealing portion；95, sizing strip.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 to Figure 3, the detection device of motor housing leakproofness includes cabinet 1, and the bottom of cabinet 1 is fixed with water
Case 2 is fixed with monitor station 11 in cabinet 1, this station adjusting mechanism includes the detection boss 3 being rotatably connected on monitor station 11,
Detection boss 3 is equipped under capable of sealing the lower port of motor housing when motor housing is placed on vertically on detection boss 3
The middle part of sealing structure, monitor station 11 is provided with rotation slot, and detection boss 3 is rotatably connected in rotation slot, outside detection boss 3
Side, which is arranged, is fixed with ring gear 62, is embedded positioned at the side of rotation slot on monitor station 11 and is fixed with driving motor 6, driving motor 6
Driving gear 61 is fixed on motor shaft, driving gear 61 is engaged with ring gear 62.If the interior corner of rotation slot offers dry milling
The lower corner of dynamic recess, detection boss 3 is provided with rolling groove in a ring, and the groove face of rolling groove is spherical surface, each to roll
It is rolled in recess and is connected with steel ball 63, steel ball 63 protrudes into rolling recess, and steel ball 63 protrudes into the part rolling insertion for rolling recess
It rolls into groove.
The middle part of detection boss 3 offers limbers 31, and the lower section that monitor station 11 is located in cabinet 1 is equipped with lower crane
4, it is vertically fixed water injection pipe 41 on lower crane 4, water injection pipe 41 passes through monitor station 11 and stretches into limbers 31 and water injection pipe
41 outer wall can be connected to by water pipe 22 with water tank 2 with the inner wall sealing of limbers 31, water injection pipe 41, and water is fixed in water tank 2
Pump 21, the water outlet port of water pump 21 is connected to water pipe 22, and the top liftable of cabinet 1 is equipped with upper crane 5, under upper crane 5
The middle part at end is equipped with can be by the closed upper sealing structure of the upper port of motor housing, and the middle part of cabinet 1 is equipped with can be by motor housing
Hole sealing middle sealing structure.
Upper crane 5 is plate-like, and the both sides up and down at 5 middle part of upper crane all have boss, and the top vertical of cabinet 1 is fixed
There are upper lifting cylinder 51, the boss that the telescopic rod of upper lifting cylinder 51 is located at upside with upper crane 5 to fix, upper crane 5
In being provided with fixed groove on the boss of downside, upper sealing structure includes gasket 52, and gasket 52 is fixed in fixed groove.It is logical
It crosses gasket 52 and the upper end of motor housing seals against to realize the sealing to the upper port of motor housing, 5 energy of upper crane
The pretightning force being pressed downward is provided in sealing so that the epimere of gasket 52 and motor housing is closely against guarantee sealing effect.
Four sides of upper crane 5 are provided with the mounting groove 53 opened up along corresponding long side, and roll shaft is rotatably connected in mounting groove 53
54, the outside protrusion mounting groove 53 and inner wall corresponding with cabinet 1 of roll shaft 54 roll connection.Upper crane 5 is located at the convex of downside
Pressure sensor 55 is fixed on platform, pressure sensor 55 wears gasket 52.Pressure sensor 55 can incude hydraulic pressure after charging,
The hydraulic pressure of induction is sent to server to judge, the case where there are leakproofness deficiency leaks if hydraulic pressure is smaller.
The aperture that limbers 31 is located at 3 upper end of detection boss is sealing necking 32, and it is in round platform that the upper end of water injection pipe 41, which has,
The sealed end of shape is cased with seal closure 42 on sealed end, 42 energy of seal closure when the sealed end of water injection pipe 41 is inserted into sealing necking 32
On the inner wall for sealing against sealing necking 32.It is avoided that water is from water injection pipe 41 and limbers after charging by above structure
It is flowed out between 31, ensures the hydraulic pressure in electric machine casing when water filling detection.
The hypomere of sealing necking 32 offers the card slot 33 of annular, and inner seal ring 34, inner seal ring are offered on card slot 33
The inner wall of 34 inside protrusion sealing necking 32, the upper side of the inner wall of the protrusion sealing necking 32 of inner seal ring 34 is upper sealing ring
The diameter in face 35, upper sealing ring face 35 is gradually reduced from up to down, and the lower face of seal closure 42 is 86 face of lower sealing ring, in water filling
86 face of lower sealing ring can recline with upper sealing ring face 35 when the sealed end of pipe 41 is inserted into sealing necking 32.It with this configuration can be into
One step increases the sealing intensity between water injection pipe 41 and limbers 31, is avoided that water is from water injection pipe 41 and limbers after charging
It is flowed out between 31, ensures the hydraulic pressure in electric machine casing when water filling detection.
Lower sealing structure includes sealing shroud 7 and exterior seal ring 73, and sealing shroud 7 includes tubular sealing shroud portion 71 and one
Be molded over the diaphragm seal portion 72 of 71 one end of sealing shroud portion, sealing shroud portion 71, which is arranged, to be fixed on detection boss 3, diaphragm seal portion 72 with
The upper side of detection boss 3 seals against, and exterior seal ring 73 is sleeved on the junction in diaphragm seal portion 72 and sealing shroud portion 71.Pacifying
When dress, electric machine casing is sleeved on sealing shroud 7, and the inner wall of electric machine casing can be sealed with sealing shroud portion 71, the lower face of electric machine casing
It is sealed with diaphragm seal portion 72, exterior seal ring 73 and the inside edge of the lower port of electric machine casing seal against, and pass through three seals face
To realize sealing, the sealing of guarantee electric machine casing lower port.
It detects with rib 8 in a ring on boss 3, formation water receiving tank 81 between rib 8 and detection boss 3, on rib 8
Several collector nozzles 82 are provided with, sewer pipe 83 is fixed on cabinet 1, the lower end of sewer pipe 83 is connected to water tank 2, sewer pipe
83 upper end is fixed and is communicated with water guiding ring 84, and guiding gutter 85, sewer pipe 83 and guiding gutter are provided on the medial surface of water guiding ring 84
85 connections, water guiding ring 84 is sleeved on rib 8 and the guiding gutter of water guiding ring 84 85 is connected to several collector nozzles 82, water guiding ring 84
It is sealed by two sealing rings 86 between rib 8, two sealing rings 86 are located at the both sides up and down of guiding gutter 85.It is examining
After the completion of survey, water drippage is had on the electric machine casing of taking-up, the water of drippage is recycled by the way that water receiving tank 81 is unified, and the water of recycling passes through
Collector nozzle 82 flows out water receiving tank 81 and flows into water guiding ring 84, and the water in water guiding ring 84 flow to sewer pipe 83 by guiding gutter 85,
Finally it is recycled in water tank 2；Water guiding ring 84 can be connected to collector nozzle 82 always when detecting boss 3 and rotating, water guiding ring 84 and inspection
Boss 3 is surveyed to ensure to seal by sealing ring 86 when relatively rotating.
Middle sealing structure includes the seal assembly that several groups are arranged on 1 outer wall of cabinet, and every group of seal assembly includes stretching
The end of contracting cylinder 9, sealing strip 91 and sealing column 93, sealing column 93 is in bulb shape, and telescopic cylinder 9 is fixed on the outer wall of cabinet 1
Upper and telescopic cylinder 9 telescopic rod horizontally extends into cabinet 1, and sealing strip 91 is in strip arc, the side of 91 evagination of sealing strip with
The telescopic rod of telescopic cylinder 9 is fixed, and sealing column 93 is fixed in the middle part of the side of 91 indent of sealing strip, sealing strip 91 and motor housing
93 energy grafting of sealing column is sealed in the corresponding hole of motor housing when sealing against.
The edge of sealing strip 91 has protrusion and sealed batten 92 in a ring, sealing column 93 are located at sealed batten 92
Inside, interior sealing portion 94 are arc-shaped, and the bottom that sealing strip 91 is located at sealing column 93 has interior sealing portion 94 in disk form,
The thickness in interior sealing portion 94 is identical as the thickness of sealed batten 92.In sealing outside the sealed batten 92 and motor of sealing strip 91
Shell reclines sealing, while interior sealing portion 94 and the motor housing on corresponding hole periphery recline sealing and sealing column 93 is plugged to correspondence
Hole；Triple seal is realized by above structure, ensures the sealing to motor housing hole.
Two sizing strips 95 are embedded in sealing strip 91, two sizing strips 95 are made of steel plate, and two sizing strips 95 are in
Arc-shaped bending.Ensure that sealing strip 91 is arc-shaped and ensures the intensity of sealing strip 91 by two sizing strips 95, it can be so that close
Sealed batten 92 on strip of paper used for sealing 91 is closely against on motor housing.
Every group of seal assembly corresponds to a hole on motor housing when use, passes through telescopic cylinder after motor housing positioning
9 push sealing strip 91 to motor housing, and sealing strip 91 sticks on motor housing, at the same 93 grafting of sealing column be sealed in it is corresponding
On hole, realizes the sealing to motor housing hole, ensure in motor housing sealing propertytest to be that water will not be from motor housing
Hole flows out.
Motor housing is placed on detection boss 3 by manipulator when detection, by detecting the lower sealing knot on boss 3
Structure seals the lower port of motor housing, while rotating detection boss 3 so that motor housing turns to detection station, at this time in it is close
Seal structure can seal the hole in the middle part of motor housing, then descend crane 4 to move down and make upper sealing structure by motor housing
Upper port is closed, and the opening on motor housing is all sealed at this time, and water injection pipe 41 rises and penetrates under the drive of lower crane 4
In limbers 31, the water filling into motor housing after water injection pipe 41 and the inner wall sealing of limbers 31 fills outside the motor after water
Certain hydraulic pressure is kept in shell, is observed on motor housing either with or without infiltration, if not seeping water, motor housing is certified products, if infiltration,
It is then defect ware, motor housing is discharged by manipulator, completes detection；It is realized to motor housing leakproofness by high pressure water
Detection can accurately detect to whether there is micropore on motor housing, improve the accuracy of detection.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of station adjusting mechanism of motor housing leak-testing apparatus, detection device includes cabinet, solid in the cabinet
Surely there is monitor station, which is characterized in that this station adjusts structure setting on monitor station, including the inspection being rotatably connected on monitor station
Boss is surveyed, is provided with rotation slot in the middle part of the monitor station, the detection boss is rotatably connected in rotation slot, the detection boss
Outside be arranged and be fixed with ring gear, be embedded positioned at the side of rotation slot on the monitor station and be fixed with driving motor, the driving
Driving gear is fixed on the motor shaft of motor, the driving gear is engaged with ring gear.
2. the station adjusting mechanism of motor housing leak-testing apparatus according to claim 1, which is characterized in that described
The interior corner of rotation slot offers several rolling recesses, and it is recessed that the lower corner for detecting boss is provided with rolling in a ring
The groove face of slot, the rolling groove is spherical surface, is rolled in each rolling recess and is connected with steel ball, the steel ball protrudes into rolling
Dynamic recess, the part that the steel ball protrudes into rolling recess roll embedded roll into groove.
3. the station adjusting mechanism of motor housing leak-testing apparatus according to claim 1, which is characterized in that described
The bottom of cabinet is fixed with water tank, and detection boss is equipped with can will be electric when the motor housing is placed on vertically on detection boss
The lower sealing structure of the lower port sealing of machine shell, offers limbers in the middle part of the detection boss, is located in the cabinet
The lower section of monitor station is equipped with lower crane, and water injection pipe is vertically fixed on the lower crane, and the water injection pipe passes through monitor station
And it stretches into limbers and the outer wall of water injection pipe can be connected with the inner wall sealing of limbers, the water injection pipe by water pipe and water tank
It is logical.
4. the station adjusting mechanism of motor housing leak-testing apparatus according to claim 3, which is characterized in that described
The aperture that limbers is located at detection boss upper end is sealing necking, and the upper end of the water injection pipe has the sealed end in truncated cone-shaped,
It is cased with seal closure on the sealed end, the seal closure can seal against when the sealed end of the water injection pipe is inserted into sealing necking
On the inner wall of sealing necking.
5. the station adjusting mechanism of motor housing leak-testing apparatus according to claim 4, which is characterized in that described
The hypomere of sealing necking offers the card slot of annular, offers inner seal ring on the card slot, the inside of the inner seal ring is convex
Go out to seal the inner wall of necking, the upper side of the inner wall of the inner seal ring protrusion sealing necking is upper sealing ring face, described close
The diameter in seal ring face is gradually reduced from up to down, and the lower face of the seal closure is lower sealing ring face, in the close of the water injection pipe
Sealing end can lean in the lower sealing ring face when being inserted into sealing necking with upper sealing ring face paste.
6. the station adjusting mechanism of motor housing leak-testing apparatus according to claim 3, which is characterized in that described
Lower sealing structure includes sealing shroud and exterior seal ring, and the sealing shroud includes that tubular sealing shroud portion and integrated molding are sealing
The diaphragm seal portion of set portion one end, the sealing shroud portion, which is arranged, to be fixed on detection boss, the diaphragm seal portion and detection boss
Upper side seals against, and the exterior seal ring is sleeved on the junction in diaphragm seal portion and sealing shroud portion.
7. the station adjusting mechanism of motor housing leak-testing apparatus according to claim 3, which is characterized in that described
The rib having on boss in a ring is detected, water receiving tank is formed between the rib and detection boss, if being provided on the rib
Dry collector nozzle is fixed with sewer pipe on the cabinet, and the lower end of the sewer pipe is connected to water tank, the sewer pipe
Upper end is fixed and is communicated with water guiding ring, and guiding gutter is provided on the medial surface of the water guiding ring, and the sewer pipe is connected to guiding gutter,
The water guiding ring is sleeved on rib and the guiding gutter of water guiding ring is connected to several collector nozzles, is led between the water guiding ring and rib
Two seal ring seals are crossed, two sealing rings are located at the both sides up and down of guiding gutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284617.4U CN207923371U (en) | 2018-02-28 | 2018-02-28 | A kind of station adjusting mechanism of motor housing leak-testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284617.4U CN207923371U (en) | 2018-02-28 | 2018-02-28 | A kind of station adjusting mechanism of motor housing leak-testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207923371U true CN207923371U (en) | 2018-09-28 |
Family
ID=63601678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820284617.4U Expired - Fee Related CN207923371U (en) | 2018-02-28 | 2018-02-28 | A kind of station adjusting mechanism of motor housing leak-testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207923371U (en) |
-
2018
- 2018-02-28 CN CN201820284617.4U patent/CN207923371U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20200228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |