CN112505521A - Three-dimensional assembled circuit testing device - Google Patents
Three-dimensional assembled circuit testing device Download PDFInfo
- Publication number
- CN112505521A CN112505521A CN202011026771.XA CN202011026771A CN112505521A CN 112505521 A CN112505521 A CN 112505521A CN 202011026771 A CN202011026771 A CN 202011026771A CN 112505521 A CN112505521 A CN 112505521A
- Authority
- CN
- China
- Prior art keywords
- rod
- support
- plate
- circuit
- group
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The invention provides a three-dimensional assembled circuit testing device, which comprises a bracket (1) and is characterized in that: articulated have control rod (2) in support (1) upper end, be equipped with spout (2 v) in control rod (2), along vertically wearing the cover to have a set of connecting plate (3) and circuit bearing board (3 a) on support (1), be connected with traction rod (6) respectively on removing every connecting plate (3) and circuit bearing board (3 a) of lower part, the upper end of traction rod (6) all articulates there is a connecting rod (7), is equipped with in the one end of connecting rod (7) and corresponds complex slider (7 a) with spout (2 v). The invention has simple structure and convenient use, does not need welding operation on the circuit board during testing, improves the testing efficiency, reduces the workload of testing personnel, and simultaneously avoids the influence of multiple times of welding on the circuit quality.
Description
The technical field is as follows:
the invention relates to the technical field of circuit testing, in particular to a three-dimensional assembled circuit testing device.
Background art:
the circuit test has very important function in the development, production and use processes of the circuit, and the circuit test is very necessary to realize.
When connecting the circuits assembled in a three-dimensional manner, the method adopted at present is to assemble and weld the circuit boards, and then perform the overall connection test. If the whole test is unqualified, each circuit board needs to be disassembled and assembled, and other circuit boards are replaced to be assembled, welded and tested, so that the workload is increased, the efficiency is reduced, the reliability of the circuit is also reduced through repeated disassembling and welding, and even the circuit is possibly damaged.
The invention content is as follows:
the invention provides a three-dimensional assembled circuit testing device for overcoming the defects in the prior art.
The application provides the following technical scheme:
the utility model provides a three-dimensional equipment circuit testing arrangement, it includes its characterized in that of support: the upper end of the support is hinged with an operating lever, the operating lever is provided with a chute, the support is sleeved with a group of connecting plates and a group of circuit bearing plates along the longitudinal direction in an alternate mode, one connecting plate is fixedly connected to the bottom of the support, traction rods are connected to other connecting plates and circuit bearing plates except the connecting plate, the upper end of each traction rod is hinged with a connecting rod, one end of each connecting rod is provided with a sliding block which is matched with the chute in a corresponding mode, each connecting plate is provided with a group of spring needles, and each circuit bearing plate is provided with a groove body.
On the basis of the technical scheme, the following further technical scheme can be provided:
the support comprises a bottom plate, a group of guide columns which are vertically distributed are connected to the bottom plate, a top plate is fixedly connected to the top ends of the guide columns, and a group of connecting plates are horizontally distributed, sequentially penetrate through the group of guide columns and are in sliding fit with the guide columns.
The spring pins distributed on the connecting plate between the two circuit bearing plates are bidirectional spring pins, and the spring pins positioned on the bottom of the support and the connecting plate close to the top of the support are unidirectional spring pins.
The control rod include the body of rod, be equipped with the spout along its length direction in body of rod lower part, be equipped with the cavity in the body of rod of spout top, be equipped with the ring platform in the cavity, wear to be equipped with the pull rod in the ring platform, pass through the stay cord in pull rod one end and be connected with the driving lever, upper portion is connected with the cavity through the pivot in the driving lever, articulates on the driving lever top has the depression bar, and the body of rod is stretched out to the depression bar upper end, is connected with the button at the depression bar other end, wears to have the spring on the pull rod between cardboard and ring platform, wears to be equipped with at the cavity tip of cardboard one side and support articulated shaft, wears to be equipped with the guide pulley on the.
Through holes which are distributed correspondingly to the group of spring needles are arranged on the groove body.
And except the connecting plate fixed at the bottom of the bracket, the other connecting plates and the circuit bearing plate are provided with support rods extending outwards, and the extending end of each support rod is connected with the traction rod.
The invention has the advantages that:
the invention has simple structure and convenient use, does not need to weld the circuit board during testing, improves the testing efficiency, reduces the workload of testing personnel, and simultaneously avoids the influence of multiple times of welding on the circuit quality.
Description of the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of the joystick of the present invention;
FIG. 3 is a schematic diagram of a circuit board structure according to the present invention;
fig. 4 is an enlarged view of a in fig. 2.
The specific implementation mode is as follows:
as shown in fig. 1-4, a three-dimensional assembled circuit testing device comprises a bracket 1, wherein the bracket 1 comprises a bottom plate 1a which is horizontally distributed, a group of guide posts 1b which are vertically distributed are connected on the bottom plate 1a, and the number of the guide posts 1b is three and is distributed in a triangle. The top ends of the three guide posts 1b are fixedly connected with a connecting top plate 1 c.
Articulated through articulated seat have a control rod 2 connecting roof 1c one end, control rod 2 include the body of rod 2a, be equipped with one section spout 2v along its length direction in the body of rod 2a lower part, spout 2v cross-section is circular.
The body of rod 2a in spout 2v top is equipped with along the cavity 2b of axial distribution, and the middle part in cavity 2b is equipped with the ring platform 2c of coaxial distribution, is equipped with the blind hole form hole 2n of coaxial distribution at ring platform 2c one end, wears to be equipped with the pull rod 2d of coaxial distribution on ring platform 2 c.
One end of the pull rod 2d is fixedly connected with the clamping plate 2h, the other end of the pull rod extends out of an integrally formed pull ring 12, a pull rope 12a is tied on the pull ring 12, and one end of the pull rope 12a is tied on a ring body 12e integrally formed at the lower end of the driving lever 2 e. A rotating shaft 2z connected with the inside of the cavity 2b penetrates through the rod body at the middle upper part of the driving lever 2e, a hole 2f is formed in the rod body 2a at the upper end of the rotating shaft 2z, a pressing rod 2t vertical to the rod body 2a in the axial direction is inserted into the hole 2f, and a button 2x is connected to the upper end of the pressing rod 2 t.
The pull rod 2d between the clamping plate 2h and the hole 2n of the annular table is sleeved with a spring 2g in a penetrating mode, guide grooves 12m are formed in the thickness end faces of the two sides of the clamping plate 2h in the axial direction of the rod body 2a, and guide blocks 2m corresponding to the guide grooves 12m in a matched mode are arranged on the inner wall of the cavity 2 b. The chucking plate 2h is ensured to reciprocate in the axial direction of the rod body 2a by the cooperation of the guide groove 12m and the guide block 2 m.
Articulated shaft 2k is worn to be equipped with at the cavity 2b tip of cardboard 2h one side, and the both ends of articulated shaft 2k are connected the cooperation with the articulated seat of roof 1c one end tip respectively, and fixed cover has guide pulley 2j of wearing on articulated shaft 2k in cavity 2b, is equipped with a set of draw-in groove 2p that corresponds the complex with cardboard 2h on the thickness terminal surface of guide pulley 2 j.
When pushing down button 2x, ring 12e of driving lever 2e lower extreme upwards removes to the back, the pulling stay cord, and then make pull rod 2d pulled backward, at this moment cardboard 2h will break away from the contact with draw-in groove 2p on the guide pulley 2j, at this moment operating lever 2 just can use the axis of articulated shaft 2k as centre of a circle luffing motion, after operating lever 2 swung the suitable position, it just no longer receives backward pulling force to let off button 2x pull rod 2d, thereby cardboard 2h will block into draw-in groove 2p again under spring 2 g's thrust and lock operating lever 2.
And a group of connecting plates 3 and circuit bearing plates 3a which are alternately distributed are alternately arranged on the group of guide posts 1b along the longitudinal direction in a penetrating way. Wherein the connecting plate 3 at the bottommost layer is fixedly welded on the bottom plate 1 a. Each circuit bearing plate 3a is provided with a groove body 4 correspondingly matched with the circuit board to be tested, and the bottom of the groove body 4 is provided with a rectangular through hole 4 a.
Each connecting plate 3 is fixedly connected with a group of vertically distributed spring pins, and the spring pins are distributed corresponding to the circuit board through holes 4 a. So that the pogo pins can be inserted into the correspondingly distributed coupling holes 8a of the circuit board 8.
The pogo pins fixed on the connecting plate 3 between the two circuit carrier plates 3a are bidirectional pogo pins 5, and the pogo pins on the connecting plate 3 at the bottom of the bracket 1 and near the top of the bracket 1 are unidirectional pogo pins 5 a. The spring needle comprises a needle cylinder a and a needle rod b, and needle heads c which are coaxially distributed and have smaller diameters are further arranged on the needle rod b. The spring needle is made of a conductive material.
The thickness end faces of each connecting plate 3 and the circuit bearing plate 3a except the connecting plate 3 directly fixed on the bottom plate 1a are fixedly connected with a support rod 6a extending outwards and horizontally, one end of each support rod 6a is fixedly connected with a vertically distributed pull rod 6, the upper end of each pull rod 6 extends out of the top plate 1c, a group of second through holes 1d correspondingly matched with the pull rods 6 are arranged on the top plate 1c, and the circle centers of the group of second through holes 1d are on the same straight line.
A connecting rod 7 is hinged at the top end of each traction rod 6, and a spherical sliding block 7a inserted into the sliding groove 2v is fixedly connected at the end part of each connecting rod 7.
The working process is as follows:
at first, the tester presses the button 2x downwards, so that the lower end of the shift lever 2e deflects backwards, the pull rope 12a is pulled backwards to pull the pull rod 2d, the clamping plate 2h is separated from the clamping groove 2p, and the operating lever 2 is unlocked. The test person then lifts the operating lever 2 upwards, so that the alternately arranged connecting plates 3 and circuit carrier plates 3a are pulled apart by a certain distance. The tester then places the circuit board 8 to be tested into the tank 4.
The tester presses the operating lever 2, the distances between the alternately distributed connecting plates 3 and the circuit bearing plates 3a are reduced, and finally the needle heads of the unidirectional spring needles 5a and the bidirectional spring needles 5 on the upper and lower longitudinal connecting plates 3 are inserted into the connecting holes 8a which are correspondingly distributed on the circuit board 8, so that all the circuit boards 8 placed on the circuit bearing plates 3a can be electrically connected through the spring needles. Therefore, the test instrument can be communicated with the spring pins to test all the circuit boards 8 which form three-dimensional communication. After the test is finished, the button 2x is pressed downwards to release the operating rod 2, the operating rod 2 is lifted, at the moment, the distance between each connecting plate 3 and the circuit bearing plate 3a is pulled, and each circuit board 8 to be tested is taken down. After the control rod 2 swings to a proper position, the pull rod 2d is not pulled backwards by releasing the button 2x, the clamping plate 2h can be clamped into the clamping groove 2p again under the thrust of the spring 2g to lock the control rod 2, and the control rod can stay at a required position.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can make numerous possible variations and modifications to the present teachings, or modify equivalent embodiments to equivalent variations, without departing from the scope of the present teachings, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.
Claims (6)
1. The utility model provides a three-dimensional equipment circuit testing arrangement, it includes support (1) its characterized in that: the upper end of the support (1) is hinged with an operating rod (2), the operating rod (2) is provided with a chute (2 v), the support (1) is sleeved with a group of connecting plates (3) and a group of circuit bearing plates (3 a) in a longitudinal and alternate mode, one connecting plate (3) is fixedly connected to the bottom of the support (1), pull rods (6) are connected to other connecting plates (3) and circuit bearing plates (3 a) except the connecting plate (3), the upper end of each pull rod (6) is hinged with a connecting rod (7), one end of each connecting rod (7) is provided with a sliding block (7 a) which is correspondingly matched with the chute (2 v), each connecting plate (3) is provided with a group of spring needles, and each circuit bearing plate (3 a) is provided with a groove body (4).
2. A three-dimensional package circuit testing apparatus according to claim 1, wherein: the support (1) comprises a bottom plate (1 a), a group of guide columns (1 b) which are vertically distributed are connected to the bottom plate (1 a), a top plate (1 c) is fixedly connected to the top ends of the guide columns (1 b), and a group of connecting plates (3) are horizontally distributed, sequentially penetrate through the group of guide columns (1 b) and are in sliding fit with the guide columns (1 b).
3. A three-dimensional package circuit testing apparatus according to claim 1, wherein: the spring pins distributed on the connecting plate (3) between the two circuit bearing plates (3 a) are bidirectional spring pins (5), and the spring pins positioned on the bottom of the support (1) and on the connecting plate (3) close to the top of the support (1) are unidirectional spring pins (5 a).
4. A three-dimensional package circuit testing apparatus according to claim 1, wherein: the control rod (2) comprises a rod body (2 a), a sliding groove (2 v) is formed in the lower portion of the rod body (2 a) along the length direction of the rod body, a cavity (2 b) is arranged in the rod body (2 a) above the sliding groove (2 v), a ring platform (2 c) is arranged in the cavity (2 b), a pull rod (2 d) is arranged in the ring platform (2 c) in a penetrating mode, one end of the pull rod (2 d) is connected with a driving rod (2 e) through a pull rope, the middle upper portion of the driving rod (2 e) is connected with the cavity (2 b) through a rotating shaft, a pressure rod (2 t) is hinged to the top end of the driving rod (2 e), the upper end of the pressure rod (2 t) stretches out of the rod body (2 a), a button (2 x) is connected to the upper end of the pressure rod (2 t), a clamping plate (2 h) is connected to the other end of the pull rod (2 d), a spring (2 g) is sleeved on the pull rod (2 d) between the clamping plate (2 h) and a ring 2k) And a guide wheel (2 j) penetrates through the hinged shaft (2 k), and a clamping groove (2 p) correspondingly matched with the clamping plate (2 h) is formed in the guide wheel (2 j).
5. A three-dimensional package circuit testing apparatus according to claim 1, wherein: through holes (4 a) which are distributed corresponding to the group of spring needles are arranged on the groove body (4).
6. A three-dimensional package circuit testing apparatus according to claim 1, wherein: except the connecting plate (3) fixed at the bottom of the bracket (1), the other connecting plates (3) and the circuit bearing plate (3 a) are respectively provided with a support rod (6 a) extending outwards, and the extending end of each support rod (6 a) is connected with the traction rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026771.XA CN112505521B (en) | 2020-09-25 | 2020-09-25 | Three-dimensional assembled circuit testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026771.XA CN112505521B (en) | 2020-09-25 | 2020-09-25 | Three-dimensional assembled circuit testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112505521A true CN112505521A (en) | 2021-03-16 |
| CN112505521B CN112505521B (en) | 2024-04-19 |
Family
ID=74953652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011026771.XA Active CN112505521B (en) | 2020-09-25 | 2020-09-25 | Three-dimensional assembled circuit testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112505521B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4829241A (en) * | 1986-11-18 | 1989-05-09 | Martin Maelzer | Apparatus for testing printed circuit boards |
| US6819099B1 (en) * | 2003-08-06 | 2004-11-16 | Intel Corporation | Programmable carrier plate for automated circuit board tester |
| CN103605067A (en) * | 2013-11-21 | 2014-02-26 | 华东光电集成器件研究所 | Double-face wire arranging thick film circuit testing apparatus |
| CN104267219A (en) * | 2014-10-13 | 2015-01-07 | 华东光电集成器件研究所 | Chip capacitor voltage withstanding performance test fixture |
| US20150015293A1 (en) * | 2013-03-15 | 2015-01-15 | Johnstech International Corporation | On-Center Electrically Conductive Pins For Integrated Testing |
| CN105215600A (en) * | 2015-10-14 | 2016-01-06 | 华东光电集成器件研究所 | A kind of discrete lead apparatus for welding and positioning |
| CN206074757U (en) * | 2016-08-26 | 2017-04-05 | 河南省日立信股份有限公司 | Manual press circuit board testing device |
| DE102015119181A1 (en) * | 2015-11-06 | 2017-05-11 | Ingun Prüfmittelbau Gmbh | Tester and use of such |
| CN206773144U (en) * | 2017-05-13 | 2017-12-19 | 苏州创元电子电器有限公司 | A kind of power panel measurement jig |
| CN207730864U (en) * | 2018-02-08 | 2018-08-14 | 北京和信瑞通电力技术股份有限公司 | Quick measuring device for distribution terminal telemetering test |
| CN108693485A (en) * | 2018-04-20 | 2018-10-23 | 浙江雷云科技有限公司 | A kind of automobile instrument panel circuit board testing device |
| CN208172217U (en) * | 2018-04-20 | 2018-11-30 | 浙江雷云科技有限公司 | It is a kind of for testing the device of LED lamp bead on circuit board |
| CN208399645U (en) * | 2018-06-28 | 2019-01-18 | 无锡万吉科技股份有限公司 | A kind of protected type circuit board automatically testing platform |
| CN209525396U (en) * | 2018-12-18 | 2019-10-22 | 摩比科技（深圳）有限公司 | A kind of test fixed structure and antenna measurement device |
| CN210024035U (en) * | 2019-03-17 | 2020-02-07 | 瑞联电路板（福建）有限公司 | Support for welding and debugging circuit board |
| CN210243785U (en) * | 2019-06-29 | 2020-04-03 | 昆山铨宝电子有限公司 | Circuit board test fixture |
| CN111624468A (en) * | 2020-06-08 | 2020-09-04 | 苏州健彭自动化设备有限公司 | Automatic plug testing arrangement of square-mouth USB interface |
-
2020
- 2020-09-25 CN CN202011026771.XA patent/CN112505521B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4829241A (en) * | 1986-11-18 | 1989-05-09 | Martin Maelzer | Apparatus for testing printed circuit boards |
| US6819099B1 (en) * | 2003-08-06 | 2004-11-16 | Intel Corporation | Programmable carrier plate for automated circuit board tester |
| US20150015293A1 (en) * | 2013-03-15 | 2015-01-15 | Johnstech International Corporation | On-Center Electrically Conductive Pins For Integrated Testing |
| CN103605067A (en) * | 2013-11-21 | 2014-02-26 | 华东光电集成器件研究所 | Double-face wire arranging thick film circuit testing apparatus |
| CN104267219A (en) * | 2014-10-13 | 2015-01-07 | 华东光电集成器件研究所 | Chip capacitor voltage withstanding performance test fixture |
| CN105215600A (en) * | 2015-10-14 | 2016-01-06 | 华东光电集成器件研究所 | A kind of discrete lead apparatus for welding and positioning |
| DE102015119181A1 (en) * | 2015-11-06 | 2017-05-11 | Ingun Prüfmittelbau Gmbh | Tester and use of such |
| CN206074757U (en) * | 2016-08-26 | 2017-04-05 | 河南省日立信股份有限公司 | Manual press circuit board testing device |
| CN206773144U (en) * | 2017-05-13 | 2017-12-19 | 苏州创元电子电器有限公司 | A kind of power panel measurement jig |
| CN207730864U (en) * | 2018-02-08 | 2018-08-14 | 北京和信瑞通电力技术股份有限公司 | Quick measuring device for distribution terminal telemetering test |
| CN108693485A (en) * | 2018-04-20 | 2018-10-23 | 浙江雷云科技有限公司 | A kind of automobile instrument panel circuit board testing device |
| CN208172217U (en) * | 2018-04-20 | 2018-11-30 | 浙江雷云科技有限公司 | It is a kind of for testing the device of LED lamp bead on circuit board |
| CN208399645U (en) * | 2018-06-28 | 2019-01-18 | 无锡万吉科技股份有限公司 | A kind of protected type circuit board automatically testing platform |
| CN209525396U (en) * | 2018-12-18 | 2019-10-22 | 摩比科技（深圳）有限公司 | A kind of test fixed structure and antenna measurement device |
| CN210024035U (en) * | 2019-03-17 | 2020-02-07 | 瑞联电路板（福建）有限公司 | Support for welding and debugging circuit board |
| CN210243785U (en) * | 2019-06-29 | 2020-04-03 | 昆山铨宝电子有限公司 | Circuit board test fixture |
| CN111624468A (en) * | 2020-06-08 | 2020-09-04 | 苏州健彭自动化设备有限公司 | Automatic plug testing arrangement of square-mouth USB interface |
Non-Patent Citations (2)
| Title |
|---|
| 胡忠臣;: "集成电路测试制造领域所用几种装置的探究", 科技广场, no. 11, 30 November 2017 (2017-11-30) * |
| 雷华;程撼;鲁阳;: "用频率法测试一端固支另一端自由压杆的临界载荷", 实验力学, no. 02, 15 April 2010 (2010-04-15) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112505521B (en) | 2024-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206710554U (en) | A kind of ICT measurement jigs manually | |
| CN112505521A (en) | Three-dimensional assembled circuit testing device | |
| CN102489589B (en) | Pipe billet whip preventing device and punching machine | |
| CN215894225U (en) | Diamond saw blade strength detection device | |
| CN107976751A (en) | A kind of band handle lock pin assembling mechanism of optical fiber head | |
| CN110877020A (en) | Wiring terminal strip test on-off test machine | |
| CN209182149U (en) | A kind of high speed perforation record system and impact test equipment | |
| CN110146001A (en) | A kind of concentricity of coupling apparatus for correcting | |
| CN217930842U (en) | Tire crack initiation resistance testing device | |
| CN213501458U (en) | Handheld electronic admission card printing device | |
| CN211678867U (en) | Wiring terminal strip test on-off test machine | |
| CN207051331U (en) | A kind of thread depressing mechanism of binding post | |
| CN210183397U (en) | Multi-pressure head under-screen fingerprint product testing device | |
| CN103094617A (en) | Distribution selector | |
| CN106641653A (en) | Tube plate installation tool for vapor generator detection | |
| CN214895418U (en) | Preventive test device for power equipment | |
| CN210611123U (en) | Line drawing device for clothing design | |
| CN212059621U (en) | Equipment for quickly demoulding cutting ring | |
| CN219957070U (en) | Integrated device for preparing unconfined compressive strength samples under different pressures | |
| CN110076435A (en) | Frame circuit breaker hand grasps main shaft welding fixture | |
| CN215590000U (en) | ATM digs paper money module bank note and peels off round restoration anchor clamps | |
| CN210270142U (en) | Finished product multi-position current transformer testing device | |
| CN209961439U (en) | Impact hammer can be dismantled in diversified removal | |
| CN108548738B (en) | Reciprocating tester for pull force of 3000 ton or below cable | |
| CN206891809U (en) | A kind of novel protected slag fusing detection sample sample making apparatus |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |