CN108152372A - A kind of efficient ultrasonic testing apparatus - Google Patents
A kind of efficient ultrasonic testing apparatus Download PDFInfo
- Publication number
- CN108152372A CN108152372A CN201710994810.7A CN201710994810A CN108152372A CN 108152372 A CN108152372 A CN 108152372A CN 201710994810 A CN201710994810 A CN 201710994810A CN 108152372 A CN108152372 A CN 108152372A
- Authority
- CN
- China
- Prior art keywords
- testing apparatus
- ultrasonic testing
- threaded rod
- steel pipe
- efficient ultrasonic
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/262—Linear objects
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of efficient ultrasonic testing apparatus, including support base and threaded rod, the upper surface of the support base is provided with ball, and the upper ends of ball have steel pipe, the left and right ends of the support base upper surface are both provided with sliding rail, and sliding rail is connected by rail wheel with connector, and the upper end of the connector is connected with supporting rod, and the upper end of supporting rod is connected with sliding part, the upper and lower ends of the threaded rod are connected by bearing with host.The ultrasonic testing apparatus of the more efficiency can be convenient for staff easily on steel pipe movement to support base, the angle of probe can be adjusted, probe can be conveniently replaceable, the height of host can be adjusted, consequently facilitating the equipment can detect the steel pipe of different-diameter, probe can move freely in the horizontal and vertical directions, can detect any position of steel pipe, it can be convenient for the primary two-way detection in longitudinal direction and one time three vertical three horizontal detections to steel pipe, so as to increase detection efficiency.
Description
Technical field
The present invention relates to ultrasonic testing apparatus correlative technology field, specially a kind of efficient ultrasonic testing apparatus.
Background technology
Ultrasonic testing apparatus is a kind of equipment that steel duct situation is detected by ultrasonic technology, can be in steel sheet production line
On internal soundness detection is carried out one by one to required flaw detection steel pipe, rod iron, steel plate, according to corresponding country variant user, different content
Line flaw detection is carried out to it with the standard and regulation of property, so that the internal flaw to steel plate and performance are accurately judged,
It can understand whether steel duct has damage convenient for people, consequently facilitating ensureing the quality of steel pipe.
But it is existing with the development of production situation, two channel ultrasonic testing apparatus there are function is single, speed slowly etc.
Shortcoming, this so that the efficiency of ultrasonic testing apparatus detection steel pipe is bad, and can not to steel pipe the two-way detection in primary longitudinal direction and
One time three vertical three horizontal detections, so as to increasingly be unable to catch up with market detection demand.
Invention content
The purpose of the present invention is to provide a kind of efficient ultrasonic testing apparatus, to solve to propose in above-mentioned background technology
Existing ultrasonic testing apparatus detection steel pipe efficiency it is bad, and can not to steel pipe the two-way detection in primary longitudinal direction and one time three it is vertical
The problem of three horizontal detections.
To achieve the above object, the present invention provides following technical solution：A kind of efficient ultrasonic testing apparatus, including branch
Support pedestal and threaded rod, the upper surface of the support base are provided with ball, and the upper ends of ball have steel pipe, the support
The left and right ends of base upper surface are both provided with sliding rail, and sliding rail is connected by rail wheel with connector, the connector
Upper end is connected with supporting rod, and the upper end of supporting rod is connected with sliding part, the upper and lower ends of the threaded rod by bearing with
Host is connected, and sliding part and tooth sector group are connected on the outside of threaded rod, and the leading flank of the host is provided with handwheel
Slot, and handwheel is provided in handwheel slot, the handwheel is connected by connecting shaft with casing, and lock is connected on the outside of connecting shaft
Slot, the end of described sleeve pipe are connected with tooth sector group, and the lower surface of the host is provided with support rod hole and vertical slot, and vertical slot
Between be connected by translot, sliding block is connected in the translot, and tube channel is connected on sliding block, the lower end of the tube channel
Direction flexible is connected with, and the lower end of direction flexible is connected with probe.
Preferably, the planform of the support base upper surface is arc, and uniform on the upper surface of support base
Ball is distributed with.
Preferably, the supporting rod is stretching structure, and supporting rod is symmetrical arranged about sliding part.
Preferably, the direction flexible be folded bent structure, and direction flexible using threaded connection by the way of and probe
It is connected.
Preferably, the tooth sector group is connected by the way of nested with threaded rod, and tooth sector group is using weldering
The mode connect is connected with threaded rod, and threaded rod is connected by the way of being threadedly coupled with sliding part.
Preferably, described sleeve pipe is connected by the way of nested with connecting shaft, and connecting shaft using by the way of engaging and
Casing is connected.
Preferably, the locked groove is connected, and locked groove connects with handwheel slot by the way of engagement with connecting shaft.
Preferably, the vertical slot and translot are respectively arranged with six and four, and vertical slot and translot are divided into two groups, and perpendicular
Slot and translot connect.
Preferably, the number of the sliding block is six, and sliding block is divided into two groups.
Compared with prior art, the beneficial effects of the invention are as follows：The ultrasonic testing apparatus of the more efficiency is set using ball
Meter can not only be convenient for staff easily on steel pipe movement to support base, and can convenient for the rotation of steel pipe, consequently facilitating
The equipment is detected steel pipe, the design of direction flexible, the angle of probe can be adjusted, consequently facilitating probe vertical is in steel pipe
Wall in order to be more accurately detected to steel pipe, and can be convenient for the replacement of probe, in order to the thickness of equipment detection steel pipe
Degree, threaded rod, the design of bearing, sliding part and tooth sector group can be convenient for staff to adjust the height of host, consequently facilitating
The equipment can detect the steel pipe of different-diameter, and the design of translot and vertical slot can be such that sliding block moves freely in the horizontal direction, from
And moved freely in the horizontal direction convenient for probe, coordinate height-adjustable host so that probe can be both horizontally and vertically
On move freely, the design of sliding rail and rail wheel can move convenient for host in support base, cooperation ball use, may be such that
Probe can detect any position of steel pipe, and be operated convenient for staff, the design of locked groove, can lock the height of host, from
And convenient for the stabilization of the equipment, six probes are divided into two groups of design, can be convenient for the equipment primary two-way detection in longitudinal direction to steel pipe
Three horizontal detections are indulged with one time three, consequently facilitating increasing the detection efficiency of the equipment.
Description of the drawings
Fig. 1 is main structure diagram of the present invention；
Fig. 2 is supporting rod of the present invention and host attachment structure schematic diagram；
Fig. 3 is host present invention looks up structural representation of the present invention；
Fig. 4 is A points enlarged structure schematic diagram of the present invention；
Fig. 5 is B points enlarged structure schematic diagram of the present invention.
In figure：1st, support base, 2, ball, 3, steel pipe, 4, supporting rod, 5, connector, 6, host, 7, tube channel, 8, ten thousand
To hose, 9, probe, 10, threaded rod, 11, bearing, 12, sliding part, 13, tooth sector group, 14, casing, 15, connecting shaft,
16th, support rod hole, 17, handwheel slot, 18, handwheel, 19, locked groove, 20, vertical slot, 21, translot, 22, sliding block, 23, sliding rail, 24, track
Wheel.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
- 5 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of efficient ultrasonic testing apparatus, including support
Pedestal 1 and threaded rod 10, the upper surface of support base 1 are provided with ball 2, and the upper ends of ball 2 have steel pipe 3, support bottom
The planform of 1 upper surface of seat is arc, and ball 2 is uniformly distributed on the upper surface of support base 1, can be convenient for steel pipe 3
Stable movement, consequently facilitating reducing the labor intensity of staff, the left and right ends of 1 upper surface of support base are both provided with cunning
Rail 23, and sliding rail 23 is connected by rail wheel 24 with connector 5, the upper end of connector 5 is connected with supporting rod 4, and supporting rod
4 upper end is connected with sliding part 12, and supporting rod 4 is stretching structure, and supporting rod 4 is symmetrical arranged about sliding part 12, can be convenient for
The height of stable adjusting host 6, consequently facilitating the steel pipe 3 of equipment detection different-diameter, the upper and lower ends of threaded rod 10 are equal
It is connected by bearing 11 with host 6, and the outside of threaded rod 10 is connected with sliding part 12 and tooth sector group 13, tooth sector
Group 13 is connected by the way of nested with threaded rod 10, and tooth sector group 13 is connected by the way of welding with threaded rod 10
It connects, and threaded rod 10 is connected by the way of being threadedly coupled with sliding part 12, tooth sector group 13 can be convenient for drive threaded rod
10 rotations, and can be convenient for the rotation of threaded rod 10 that sliding part 12 is driven to be moved on threaded rod 10, the leading flank of host 6 is provided with
Handwheel slot 17, and handwheel 18 is provided in handwheel slot 17, handwheel 18 is connected by connecting shaft 15 with casing 14, and connecting shaft 15
Outside be connected with locked groove 19, locked groove 19 is connected, and locked groove 19 and 17 phase of handwheel slot by the way of engagement with connecting shaft 15
Perforation can be convenient for the height of locking host 6, consequently facilitating ensureing the stabilization of the equipment, the end of casing 14 is connected with steering tooth
Wheel group 13, casing 14 are connected by the way of nested with connecting shaft 15, and connecting shaft 15 is using by the way of engaging and casing 14
It is connected, connecting shaft 15 can be convenient for be slided in casing 14, and can be convenient for the rotation of connecting shaft 15 that casing 14 is driven to rotate, host
6 lower surface is provided with support rod hole 16 and vertical slot 20, and is connected between vertical slot 20 by translot 21, is connected in translot 21
Sliding block 22, and tube channel 7 is connected on sliding block 22, vertical slot 20 and translot 21 are respectively arranged with six and four, and 20 He of vertical slot
Translot 21 is divided into two groups, and vertical slot 20 and translot 21 connect, and the equipment can be convenient for realize the primary two-way inspection in longitudinal direction to steel pipe
It surveys and one time three is indulged three horizontal detections, so as to increase the detection efficiency of the equipment, the number of sliding block 22 is six, and sliding block 22 is equal
It is divided into two groups, the lower end of tube channel 7 is connected with direction flexible 8, and the lower end of direction flexible 8 is connected with probe 9, direction flexible 8
For folded bent structure, and direction flexible 8 is connected by the way of being threadedly coupled with probe 9, can pop one's head in 9 convenient for rotating, from
And convenient for probe 9 perpendicular to steel pipe 3, in order to more accurately detect steel pipe 3.
Operation principle：In the ultrasonic testing apparatus for using the more efficiency, first the ultrasonic testing apparatus of the more efficiency
Mounted on the suitable position of on-site, and the power supply of the device is connected, then steel pipe 3 is positioned over the ball 2 in support base 1
On, and pass through ball 2 and steel pipe 3 is pushed to the equipment, it is then slided in vertical slot 20 and translot 21 by sliding block 22, makes support
The probe 9 of 1 same group of lower section of pedestal is in the side of steel pipe 3, then is extracted out out of handwheel slot 17 and rotate handwheel 18, makes connecting shaft
15 drive tooth sector groups 13 rotate, so as to which threaded rod 10 be driven to rotate, in order to which sliding part 12 moves on threaded rod 10, from
And the exposed length outside support base 1 of supporting rod 4 is adjusted, in order to make the height of probe 9, meet detection demand, and lead to
Rotation direction flexible 8 is crossed, the probe 9 of 3 side of steel pipe is made finally to open the power switch of the equipment perpendicular to steel pipe 3, set this
It is standby that steel pipe 3 is detected, can be by 24 mobile host 6 of sliding rail 23 and rail wheel in detection process, and ball 2 can be passed through
Steel pipe 3 is rotated, consequently facilitating host 6 is detected each position of steel pipe 3, while replaceable probe 9, detection steel pipe 3
Thickness, the content not being described in detail in this specification belong to the prior art well known to professional and technical personnel in the field.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of efficient ultrasonic testing apparatus, including support base (1) and threaded rod (10), it is characterised in that：The branch
The upper surface of support pedestal (1) is provided with ball (2), and the upper ends of ball (2) have a steel pipe (3), on the support base (1)
The left and right ends on surface are both provided with sliding rail (23), and sliding rail (23) is connected by rail wheel (24) with connector (5), described
The upper end of connector (5) is connected with supporting rod (4), and the upper end of supporting rod (4) is connected with sliding part (12), the threaded rod
(10) upper and lower ends are connected by bearing (11) with host (6), and are connected with sliding part on the outside of threaded rod (10)
(12) and tooth sector group (13), the leading flank of the host (6) are provided with handwheel slot (17), and be provided in handwheel slot (17)
Handwheel (18), the handwheel (18) is connected by connecting shaft (15) with casing (14), and is connected on the outside of connecting shaft (15)
Locked groove (19), the end of described sleeve pipe (14) are connected with tooth sector group (13), and the lower surface of the host (6) is provided with support
Rod aperture (16) and vertical slot (20), and be connected between vertical slot (20) by translot (21), it is connected with sliding block in the translot (21)
(22), tube channel (7) and on sliding block (22) is connected with, the lower end of the tube channel (7) is connected with direction flexible (8), and universal
The lower end of hose (8) is connected with probe (9).
2. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：The support base (1)
The planform of upper surface is arc, and ball (2) is uniformly distributed on the upper surface of support base (1).
3. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：The supporting rod (4) is
Stretching structure, and supporting rod (4) is symmetrical arranged about sliding part (12).
4. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：The direction flexible (8)
For folded bent structure, and direction flexible (8) is connected by the way of being threadedly coupled with probe (9).
5. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：The tooth sector group
(13) it is connected by the way of nested with threaded rod (10), and tooth sector group (13) is by the way of welding and threaded rod
(10) it is connected, and threaded rod (10) is connected by the way of being threadedly coupled with sliding part (12).
6. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：Described sleeve pipe (14) uses
Nested mode is connected with connecting shaft (15), and connecting shaft (15) is connected by the way of engagement with casing (14).
7. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：The locked groove (19) uses
The mode of engagement is connected with connecting shaft (15), and locked groove (19) connects with handwheel slot (17).
8. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：The vertical slot (20) and horizontal stroke
Slot (21) is respectively arranged with six and four, and vertical slot (20) and translot (21) are divided into two groups, and vertical slot (20) and translot
(21) it connects.
9. a kind of efficient ultrasonic testing apparatus according to claim 1, it is characterised in that：Of the sliding block (22)
Number is six, and sliding block (22) is divided into two groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994810.7A CN108152372A (en) | 2017-10-23 | 2017-10-23 | A kind of efficient ultrasonic testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994810.7A CN108152372A (en) | 2017-10-23 | 2017-10-23 | A kind of efficient ultrasonic testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108152372A true CN108152372A (en) | 2018-06-12 |
Family
ID=62468700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710994810.7A Pending CN108152372A (en) | 2017-10-23 | 2017-10-23 | A kind of efficient ultrasonic testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108152372A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918674A (en) * | 2018-08-21 | 2018-11-30 | 中国石油大学(华东) | A kind of online ultrasonic detection device of steel pipe and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144826A (en) * | 2007-11-07 | 2008-03-19 | 钢铁研究总院 | Heavy caliber seamless steel pipe supersonic and vortex combined automatic detection device and uses |
| CN103529122A (en) * | 2013-09-23 | 2014-01-22 | 中国石油天然气第一建设公司 | Multifunctional double-channel welding line ultrasonic testing scanner |
| CN203519562U (en) * | 2013-09-18 | 2014-04-02 | 鞍山长风无损检测设备有限公司 | Upright column movable steel pipe flaw detection machine |
| CN205015311U (en) * | 2015-09-18 | 2016-02-03 | 江苏常宝普莱森钢管有限公司 | Prevent wear resistant strip of steel pipe galled spots when electromagnetism is detected a flaw |
| CN105699484A (en) * | 2014-11-28 | 2016-06-22 | 田佳聪 | Novel ring-mounted piston automatic ultrasonic testing mechanical device |
| CN105689513A (en) * | 2014-11-26 | 2016-06-22 | 无锡市通协物资有限公司 | Punching machining head structure for metal plate |
| CN206096042U (en) * | 2016-05-27 | 2017-04-12 | 中国矿业大学 | Supersound array combination formula controllable pitch device |
| CN206527021U (en) * | 2016-12-30 | 2017-09-29 | 天津市静海县宝来利镀锌钢管有限公司 | A kind of novel steel tube support |
-
2017
- 2017-10-23 CN CN201710994810.7A patent/CN108152372A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144826A (en) * | 2007-11-07 | 2008-03-19 | 钢铁研究总院 | Heavy caliber seamless steel pipe supersonic and vortex combined automatic detection device and uses |
| CN203519562U (en) * | 2013-09-18 | 2014-04-02 | 鞍山长风无损检测设备有限公司 | Upright column movable steel pipe flaw detection machine |
| CN103529122A (en) * | 2013-09-23 | 2014-01-22 | 中国石油天然气第一建设公司 | Multifunctional double-channel welding line ultrasonic testing scanner |
| CN105689513A (en) * | 2014-11-26 | 2016-06-22 | 无锡市通协物资有限公司 | Punching machining head structure for metal plate |
| CN105699484A (en) * | 2014-11-28 | 2016-06-22 | 田佳聪 | Novel ring-mounted piston automatic ultrasonic testing mechanical device |
| CN205015311U (en) * | 2015-09-18 | 2016-02-03 | 江苏常宝普莱森钢管有限公司 | Prevent wear resistant strip of steel pipe galled spots when electromagnetism is detected a flaw |
| CN206096042U (en) * | 2016-05-27 | 2017-04-12 | 中国矿业大学 | Supersound array combination formula controllable pitch device |
| CN206527021U (en) * | 2016-12-30 | 2017-09-29 | 天津市静海县宝来利镀锌钢管有限公司 | A kind of novel steel tube support |
Non-Patent Citations (1)
| Title |
|---|
| 夏纪真: "《工业无损检测技术 超声检测》", 31 January 2017, 中山大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918674A (en) * | 2018-08-21 | 2018-11-30 | 中国石油大学(华东) | A kind of online ultrasonic detection device of steel pipe and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207171874U (en) | A kind of clamping fixture for pipe detection | |
| CN110132777A (en) | A kind of construction material rigidity detection device | |
| CN208397444U (en) | A kind of municipal pipeline mounting device | |
| CN104959751A (en) | Steel coil welding device based on ultrasonic testing | |
| CN207946098U (en) | A kind of construction management detection ruler | |
| CN209688381U (en) | A kind of civil engineering measuring instrument support device | |
| CN208109763U (en) | A kind of CCD solder joint testing agency | |
| CN108152372A (en) | A kind of efficient ultrasonic testing apparatus | |
| CN204479495U (en) | There is the x-ray detection device of laser positioning function | |
| CN205896592U (en) | Multi -media adjusting device is used with automatic teaching to computer | |
| CN107607749A (en) | A kind of rotary frame for semiconductor test apparatus | |
| CN206132648U (en) | Test table is examined in illumination of work piece quality | |
| CN206096477U (en) | Ionization chamber detecting system | |
| CN205580528U (en) | Over -and -under type amount of wind cover | |
| CN103325595B (en) | Bearing platform for adjusting switch operating mechanism in four directions | |
| CN104458090B (en) | Sidewall contact device of logging device universal measurement device | |
| CN207198054U (en) | Semi-automatic chip outward appearance detects labelling apparatus | |
| CN206002094U (en) | A kind of level gauge | |
| CN108581426A (en) | One kind tears lid arrangement open and tears convering system open automatically automatically | |
| CN208505775U (en) | A kind of bracket for building wall board load experimental rig | |
| CN210487627U (en) | Communication pipeline detection device | |
| CN207471060U (en) | A kind of line sweeps camera adjusting device | |
| CN213932490U (en) | Building engineering straightness detection device that hangs down | |
| CN207586256U (en) | For the rotary frame of semiconductor test apparatus | |
| CN206378084U (en) | A kind of high-efficiency multi-function camshaft step surface axial length detection means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180612 |
|
| RJ01 | Rejection of invention patent application after publication |