CN207525563U - A kind of traverse measurement vehicle - Google Patents
A kind of traverse measurement vehicle Download PDFInfo
- Publication number
- CN207525563U CN207525563U CN201721442969.XU CN201721442969U CN207525563U CN 207525563 U CN207525563 U CN 207525563U CN 201721442969 U CN201721442969 U CN 201721442969U CN 207525563 U CN207525563 U CN 207525563U
- Authority
- CN
- China
- Prior art keywords
- rack
- rail
- traverse measurement
- measurement vehicle
- support bar
- 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.)
- Active
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a kind of traverse measurement vehicles, its drip irrigation device includes two groups of racks being placed on rail, the elasticity being set between two groups of racks pushes against component and below rack and is connected on rail to detect the detection unit of rail wave mill state, the elasticity pushes against component and includes two affixed with two groups of racks respectively connecting plates and the first support bar and second support bar that are respectively arranged on two connecting plates, fixes sleeve is provided in the first support bar, limiting plate is provided in the second support bar, the limiting plate is slidably connected in fixes sleeve, compressed spring is provided between the limiting plate and the fixes sleeve, achieve the effect that manual measurement equipment can adapt to rail change width.
Description
Technical field
The utility model is related to a kind of track detection device, more specifically, it relates to a kind of traverse measurement vehicle.
Background technology
Rail conserve bruting process in need simultaneously three kinds of data as reference, three kinds of data including geometric parameter,
Wave is ground and surface and internal hurt, and there are three types of the measuring apparatus that the current country uses, and is handheld device respectively, hand push equipment and big
The track checking car or inspection car of type.
Domestic large-scale inspection car or track checking car speed soon up to 60 kilometers per hour, but since detection speed is too fast,
Precision is low and has the situation of missing inspection, and to disease point, there is still a need for handheld device or hand push equipment to carry out repetition measurement, and oversize vehicle
Buying and cost of upkeep it is also very high.
When handheld device carries out traverse measurement, since measuring apparatus easily occurs when the width of rail, which has differences, to be caused to measure
Inclination can not be accurately erected on rail, lead to measurement error.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of traverse measurement vehicle, Neng Goubian
Ensure that manual measurement equipment can adapt to the change width of rail when manual measurement.
To achieve the above object, the utility model provides following technical solution：
A kind of traverse measurement vehicle is supported including two groups of racks being placed on rail, the elasticity being set between two groups of racks
It tight component and below rack and is connected to for detecting the detection unit of rail wave mill state on rail, the elasticity is supported
Tight component includes two affixed with two groups of racks respectively connecting plates and first be respectively arranged on two connecting plates
Strut and second support bar are provided with fixes sleeve in the first support bar, limiting plate are provided in the second support bar,
The limiting plate is slidably connected in fixes sleeve, and compressed spring is provided between the limiting plate and the fixes sleeve.
By using above-mentioned technical proposal, the rack that elasticity abutting component can flexibly support both sides enables traverse measurement vehicle
Adapt to the variation of track width.
Preferably, the bottom of the frame is provided with rotating wheel group, the rotating wheel group is located at detection unit both sides, described turn
It is provided with that runner axle center maintains an equal level described in several runners and size is identical in driving wheel group.
By using above-mentioned technical proposal, the rotating wheel group of bottom of the frame can be slided on rail, and detection unit is connected to
It is detected on rail, realizes and detected convenient for artificial push, make detection more convenient reliable.
Preferably, being provided with auxiliary pulley mechanism in the rack, the auxiliary pulley mechanism includes being articulated with the machine
The auxiliary stand at frame both ends and the traveling wheel being set on the auxiliary stand, the traveling wheel can rotate under the runner
Side.
By using above-mentioned technical proposal, under traveling wheel can be gone to runner by traverse measurement vehicle when without measuring
Fang Jinhang is pushed, abrasion that is easy to remove and can preventing runner.
Preferably, the rack side close to each other is provided with limit assembly.
By using above-mentioned technical proposal, traverse measurement vehicle can be made steadily to measure, prevent from pushing against the effect of part in elasticity
Lower bearing bracket offset rail leads to not measure or generate measurement error.
Preferably, the limit assembly includes the limited block being fixed on the rack, is slidably connected to the limited block
Sliding block and the abutting wheel that is fixed on the sliding block, be provided with latch assembly on the sliding block.
By using above-mentioned technical proposal, pushing against wheel can rotate in orbit, will not be because while preventing rack from deviating
Cause to push trolley traverse measurement inconvenient to push against part and track friction, the setting of locking member can have the position of abutting wheel
Adjustability enables the adaptation track that traverse measurement vehicle is more convenient.
Preferably, the wheel that pushes against is rubber material.
By using above-mentioned technical proposal, can reduce because the deformation on rail side wall causes to push against the vibration taken turns.
Preferably, the detection unit include mounting blocks, the resonant transducer that is resiliently attached on the mounting blocks and
The signal processor being fixed on the rack is provided on the mounting blocks from rear and front end to the centroclinal cunning of mounting blocks
Plate.
By using above-mentioned technical proposal, detection unit abuts the detection realized to track with track, is set to mounting blocks
On slide plate can realize and play a protective role when detection unit is slided in orbit to resonant transducer.
Preferably, it is provided with holder above the rack.
By using above-mentioned technical proposal, available for placing computer, detection data is recorded when being moved easily detection
And analysis.
In conclusion the utility model has the advantages that：
1st, the rotating wheel group of bottom of the frame can be slided on rail, and detection unit is connected on rail and is detected, and realize
It is detected convenient for artificial push, makes detection more convenient reliable；
2nd, elasticity, which pushes against component, can flexibly support the variation that the rack of both sides makes traverse measurement vehicle can adapt to track width；
3rd, when traveling wheel can be gone to and pushed below runner when without measuring by traverse measurement vehicle, it is easy to remove again
It can prevent the abrasion of runner.
Description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the schematic diagram of outstanding behaviours detection unit and rotating wheel group；
Fig. 3 is Section A-A schematic diagram in Fig. 2；
Fig. 4 pushes against component structure diagram for elasticity；
Fig. 5 is C-C schematic cross-sections in Fig. 4；
Fig. 6 is auxiliary pulley mechanism structure diagram；
Fig. 7 is the partial enlarged view of B in Fig. 1.
Reference numeral：1st, rack；11st, supporting rack；12nd, support plate；2nd, detection unit；21st, mounting blocks；211st, mounting surface；
212nd, slide plate；22nd, resonant transducer；23rd, signal processor；24th, mounting hole；25th, slide opening；26th, installing plate；3rd, rotating wheel
Group；31st, fixed plate；32nd, runner；33rd, mounting groove；4th, elasticity pushes against component；41st, connecting plate；42nd, first support bar；421st, it is solid
Determine sleeve；43rd, second support bar；431st, limiting plate；44th, compressed spring；5th, limit assembly；51st, limited block；511st, lock slots；
52nd, trolley shoe；53rd, support shaft；54th, wheel is pushed against；55th, screw rod；56th, locking column；57th, hand button is rotated；6th, auxiliary pulley mechanism；
61st, auxiliary stand；62nd, traveling wheel；63rd, fixation kit；631st, fixed link；632nd, baffle ring；633rd, hole is slipped；634th, fixed bullet
Spring；635th, mounting hole；7th, holder；8th, rail.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing, wherein the identical attached drawing of identical parts
Label represents.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down", " bottom
Face " and " top surface " refer to the direction in attached drawing, and word " interior " and " outer " are referred respectively to towards or away from particular elements geometry
The direction at center.
A kind of traverse measurement vehicle, as shown in Figure 1, including be placed on rail 8 two groups of racks 1, be set to two groups of racks 1
Between elasticity push against component 4 and positioned at the lower section of rack 1 and be connected on rail 8 to detect the inspection of 8 wave of rail mill state
Unit 2 is surveyed, when in use, rack 1 is slided on rail 8, and 4 two groups of racks of component, 1 elasticity is pushed against by the elasticity of setting
It is pushed against on rail 8, detection unit 2 is detected the wave mill state of rail 8 in 1 sliding process of rack.
The structure of two groups of racks 1 is identical, now elaborates by taking the structure of one of which rack 1 as an example：
As shown in Figure 1, rack 1 includes the supporting rack 11 being slidably arranged on a rail 8, in 11 upper end of supporting rack level
Set and by using the fixed support plate 12 of bolt, wherein, supporting rack 11 in " isosceles trapezoid " shape and base it is longer one
End is connected on rail 8, so that motion process is relatively stable；Support plate 12 is in " isosceles trapezoid " shape, and base is larger
Side is horizontally fixed on 11 upper end of supporting rack by using bolt；11 inside setting of supporting rack is in latticed, is mitigating rack 1
While weight, the overall aesthetic degree of rack 1 is increased.
With reference to Fig. 1 and Fig. 2, detection unit 2 is fixed at supporting rack 11 close to 8 side of rail and in 11 length of supporting rack
Direction centre position, including being bolted the mounting blocks 21 being arranged on supporting rack 11, in elasticity setting in mounting blocks 21
Resonant transducer 22 and be fixedly installed on 11 side wall of supporting rack be used for the signal of resonant transducer 22 at
The signal processor 23 of reason, when detecting 22 elasticity of resonant transducer be connected on rail 8.
Mounting hole 24 is offered in centre position of the mounting blocks 21 far from 11 side of supporting rack, mounting hole 24 is humorous for grafting
Formula of shaking sensor 22, in rack 1 and with mounting hole 24, concentric position offers slide opening 25, and bullet is provided in slide opening 25
Spring, spring one end are pushed against 25 bottom of slide opening, and the other end is pushed against on the installing plate 26 of 22 end set of resonant transducer,
In, the diameter of slide opening 25 is more than the diameter of mounting hole 24, installing plate 26 can slide in slide opening 25 and with the inner wall of slide opening 25
It abuts, so that 22 elasticity of resonant transducer is pushed against on rail 8.
Simultaneously in order to enable resonant transducer 22 is more steady during pushing against, the resonant mode on mounting blocks 21 passes
22 both sides of sensor are provided with the mounting surface 211 along the length direction of supporting rack 11, and rectangle cunning is provided on the mounting surface 211
Plate 212, slide plate 212 are fixed on by using screw on mounting surface 211, wherein, in slide plate 212 close to resonant transducer 22
One end is higher than mounting blocks 21 and less than resonant transducer 22, when 22 elasticity of resonant transducer is pushed against on rail 8, resonance
Formula sensor 22 and slide plate 212, which can be pushed against simultaneously on rail 8, to be slided, wherein, slide plate 212 is made using antifriction metal (AFM).
By the setting of slide plate 212, protective action can be played, while again to the resonant transducer 22 in detection process
Resonant transducer 22 is enabled to keep horizontal.
With reference to Fig. 1 and Fig. 2, to realize that the equipment can move detection on rail 8, on supporting rack 11 and in mounting blocks 21
Both sides be both provided with rotating wheel group 3, all 32 axle center of runner, which maintain an equal level, and size is identical makes its wheel face on rail 8 is connected to
For co-planar, so that rack 1 keeps horizontality in detection process, so that measurement accuracy is higher.
Rotating wheel group 3 include be fixed at supporting rack 11 close to the fixed plate 31 of 8 side of rail, on 31 plate of fixed plate
Multiple runners 32 of rotation connection, wherein, the mounting groove 33 for being parallel to 11 length direction of supporting rack is opened up on 31 plate of fixed plate,
Runner 32, which is spaced, to be equidistantly connected in mounting groove 33, in order to enable measuring precisely, all runners 32 are on rail 8 is connected to
Wheel face is co-planar.
It should be noted that detection unit 2 and rotating wheel group 3 are both provided in two groups of racks 1, meanwhile, one piece wherein
The holder 7 for placing computer and the power supply powered to computer and sensor are provided in support plate 12.
With reference to Fig. 1 and Fig. 4, connected between two groups of detection units 2 by elasticity abutting component 4, rack 1 can be caused to exist
When sliding process detects, pushed against with 8 elasticity of rail, reduce the error perpendicular to 8 direction of rail.
With reference to Fig. 4 and Fig. 5, elasticity push against component 4 include respectively connecting plate 41 fixed with 12 bolt of support plate, in two pieces
First support bar 42, the second support bar 43 being fixedly installed respectively on connecting plate 41, wherein, it is fixed in first support bar 42 to set
Fixes sleeve 421 is equipped with, there are multiple limiting plates 431 in 43 end set of second support bar and limiting plate 431 is in fixes sleeve 421
It is inside slidably connected, compressed spring 44 is arranged in second support bar 43,44 one end of compressed spring is connected to 421 end of fixes sleeve
Portion, the other end are pushed against on the baffle being set in second support bar 43.
With reference to Fig. 1 and Fig. 6, in two racks 1 and side close to each other is fixedly installed limit assembly 5, when elasticity is supported
Tight component 4 by rack 1 to two-side elastic support when, 11 elasticity of supporting rack is pushed against by 8 side wall of rail by 431 component of limiting plate
On.
With reference to Fig. 1 and Fig. 7, limit assembly 5 includes the limited block 51 being fixed on 11 inner wall of supporting rack, in limited block
The trolley shoe 52 of setting is slided on 51 and in the abutting wheel 54 set on trolley shoe 52, wherein limited block 51 is parallel to supporting rack 11
The section of length direction assumes a " convex " shape；Trolley shoe 52 can be in 51 upper edge of limited block perpendicular to the side water of 11 length direction of supporting rack
Smooth dynamic, trolley shoe 52 in " recessed " shape, slides on limited block 51 so as to be connected to close to the side of limited block 51 and passes through setting
Locked component locking on limited block 51, the side that supporting rack 11 is close in trolley shoe 52 are fixedly installed support shaft 53,
In, the top one end of support shaft 53 is concordant with 52 side wall of trolley shoe, and the other end protrudes from trolley shoe 52 and is rotatably connected to abutting
Wheel 54, pushing against wheel 54 can be pushed against on the side wall of rail 8.
Limited block 51 offers lock slots 511 along 52 glide direction of trolley shoe, and locked component is included by far from trolley shoe 52
It is plugged on the screw rod 55 in lock slots 511 and being threaded on trolley shoe 52, is fixed at screw rod 55 far from trolley shoe 52
The locking column 56 of one end and the rotation hand button 57 being fixed on locking column 56, spin locking hand button cause screw rod 55 to screw
When, locking column 56 is pushed against on 51 side wall of limited block, so as to be locked to the slip of trolley shoe 52.
52 slide lock of trolley shoe is realized by the locked component of setting, rail 8 is pushed against so as to two groups of 1 elasticity of rack
Elastic abutting degree be adjusted.
Meanwhile 54 vibrations brought are taken turns because pushing against in order to reduce, it pushes against wheel 54 and is made using rubber.
With reference to Fig. 1 and Fig. 6, after detection, entire trolley is moved, while again will not be to resonance for convenience
Formula sensor 22 etc. impacts, and auxiliary pulley mechanism 6 is respectively arranged at the both ends of two racks 1.
Auxiliary pulley mechanism 6 includes being rotatably arranged on 11 length direction end of supporting rack and the auxiliary above fixed plate 31
Stent 61, in the traveling wheel 62 that setting is rotated on auxiliary stand 61 and the fixation kit 63 that auxiliary stand 61 is fixed,
When auxiliary stand 61 is rotated down along trunnion axis, traveling wheel 62 is less than runner 32, is moved on ground so as to be connected to.
Fixation kit 63 includes fixed link 631, in the baffle ring 632 being fixedly installed on 631 side wall of fixed link, in auxiliary stand
61 sides offer sliding hole 633, and it is counterbore to slip hole 633, is relatively large in diameter close to the side of supporting rack 11, so as to fixed link
During 631 grafting outside by close 11 one end of supporting rack from sliding hole 633, baffle ring 632 can be slipped in sliding hole 633, fixed link
Fixed spring 634 is socketed on 631,634 one end of fixed spring is sunken in sliding hole 633, and the other end is connected on baffle ring 632.
It is offered using trunnion axis as the center of circle on supporting rack 11 and along the circumference where the sliding trace of fixed link 631 more
A mounting hole 635, so that fixed link 631 can be plugged on far from spring one end in mounting hole 635, when detection finishes progress
During walking, fixed link 631 is pulled to far from 11 side of supporting rack so that fixed link 631 is detached from mounting hole 635, rotation auxiliary branch
Frame 61 so that when traveling wheel 62 goes to 32 downside of runner, unclamp fixed link 631 so that fixed link 631 is connected to mounting hole 635
It is interior, it is replaced so as to fulfill to the position of auxiliary stand 61, at this point, movement is carried out to trolley can avoid abrasion to runner 32.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model by Patent Law.
Claims (8)
1. a kind of traverse measurement vehicle, including being placed on rail（8）On two groups of racks（1）, be set to two groups of racks（1）Between
Elasticity pushes against component（4）And positioned at rack（1）Lower section and it is connected to rail（8）On for detecting rail（8）Wave mill state
Detection unit（2）, it is characterised in that：The elasticity pushes against component（4）Including respectively with two groups of racks（1）Two affixed connections
Plate（41）Be respectively arranged at two connecting plates（41）On first support bar（42）And second support bar（43）, described
One supporting rod（42）On be provided with fixes sleeve（421）, the second support bar（43）On be provided with limiting plate（431）, it is described
Limiting plate（431）It is slidably connected to fixes sleeve（421）It is interior, the limiting plate（431）With the fixes sleeve（421）Between set
It is equipped with compressed spring（44）.
2. traverse measurement vehicle according to claim 1, it is characterized in that：The rack（1）Bottom is provided with rotating wheel group
（3）, the rotating wheel group（3）Positioned at detection unit（2）Both sides, the rotating wheel group（3）On be provided with several runners（32）, institute
State runner（32）Axle center maintains an equal level and size is identical.
3. traverse measurement vehicle according to claim 2, it is characterized in that：The rack（1）On be provided with auxiliary pulley mechanism
（6）, the auxiliary pulley mechanism（6）Including being articulated with the rack（1）The auxiliary stand at both ends（61）It is described auxiliary with being set to
Help stent（61）On traveling wheel（62）, the traveling wheel（62）It can rotate to the runner（32）Lower section.
4. traverse measurement vehicle according to claim 1, it is characterized in that：The rack（1）Side setting close to each other is limited
Hyte part（5）.
5. traverse measurement vehicle according to claim 4, it is characterized in that：The limit assembly（5）Including being fixed on the machine
Frame（1）On limited block（51）, be slidably connected to the limited block（51）Trolley shoe（52）And it is fixed on the trolley shoe
（52）On abutting wheel（54）, the trolley shoe（52）On be provided with latch assembly.
6. traverse measurement vehicle according to claim 5, it is characterized in that：It is described to push against wheel（54）For rubber material.
7. traverse measurement vehicle according to claim 1, it is characterized in that：The detection unit（2）Including mounting blocks（21）, bullet
Property is connected to the mounting blocks（21）On resonant transducer（22）Be fixed on the rack（1）On signal processor
（23）, the mounting blocks（21）On be provided with from rear and front end to mounting blocks（21）Centroclinal slide plate（212）.
8. traverse measurement vehicle according to claim 1, it is characterized in that：The rack（1）Top is provided with holder（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442969.XU CN207525563U (en) | 2017-11-02 | 2017-11-02 | A kind of traverse measurement vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442969.XU CN207525563U (en) | 2017-11-02 | 2017-11-02 | A kind of traverse measurement vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207525563U true CN207525563U (en) | 2018-06-22 |
Family
ID=62572056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721442969.XU Active CN207525563U (en) | 2017-11-02 | 2017-11-02 | A kind of traverse measurement vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207525563U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874019A (en) * | 2020-08-15 | 2020-11-03 | 北京中铁诚业工程建设监理有限公司 | Be used for railway rails deformation quality detector |
| CN112501966A (en) * | 2020-11-20 | 2021-03-16 | 滨州职业学院 | Detection feedback device based on BIM model |
| CN112962372A (en) * | 2021-02-06 | 2021-06-15 | 吴佳俊 | Rotary type abrasion drawing and measuring device for train rail |
| CN113532310A (en) * | 2021-07-08 | 2021-10-22 | 四川督信工程试验检测有限责任公司 | Pavement structure depth measuring instrument and structure depth detection method |
| RU209440U1 (en) * | 2021-09-20 | 2022-03-16 | Сергей Константинович Дядичев | Device for measuring overall distances on the railway |
-
2017
- 2017-11-02 CN CN201721442969.XU patent/CN207525563U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874019A (en) * | 2020-08-15 | 2020-11-03 | 北京中铁诚业工程建设监理有限公司 | Be used for railway rails deformation quality detector |
| CN111874019B (en) * | 2020-08-15 | 2021-06-18 | 北京中铁诚业工程建设监理有限公司 | Be used for railway rails deformation quality detector |
| CN112501966A (en) * | 2020-11-20 | 2021-03-16 | 滨州职业学院 | Detection feedback device based on BIM model |
| CN112501966B (en) * | 2020-11-20 | 2022-07-05 | 滨州职业学院 | Detection feedback device based on BIM model |
| CN112962372A (en) * | 2021-02-06 | 2021-06-15 | 吴佳俊 | Rotary type abrasion drawing and measuring device for train rail |
| CN112962372B (en) * | 2021-02-06 | 2024-04-05 | 柳州科路测量仪器有限责任公司 | Rotary abrasion drawing and measuring device for train rail |
| CN113532310A (en) * | 2021-07-08 | 2021-10-22 | 四川督信工程试验检测有限责任公司 | Pavement structure depth measuring instrument and structure depth detection method |
| RU209440U1 (en) * | 2021-09-20 | 2022-03-16 | Сергей Константинович Дядичев | Device for measuring overall distances on the railway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207525563U (en) | A kind of traverse measurement vehicle | |
| CN100478669C (en) | Friction-wear detecting apparatus | |
| CN208860265U (en) | Bearing disk detecting tool | |
| CN110055838B (en) | Working track installation mechanism of transverse working trolley of trailing suction hopper dredger | |
| CN207523704U (en) | A kind of portable inspectiont vehicle | |
| CN207717074U (en) | One kind automatically recording inclinometer | |
| CN209706767U (en) | A kind of degree of plainness for wall surface detection device | |
| CN207335660U (en) | A kind of ripple mill measurement trolley | |
| CN206177221U (en) | A high accuracy testing equipment for cold rolling accurate seamless steel pipe straightness accuracy | |
| CN209700694U (en) | Grooved rail track detector | |
| CN218329716U (en) | Railway track detection equipment | |
| CN208140325U (en) | A kind of bridge bottom stability detector | |
| CN111780699A (en) | Three-coordinate detector for metal piece measurement | |
| CA1142748A (en) | Radius turntable gauge for front end alignment of motor vehicles | |
| CN110596416B (en) | Linear speed detection and calibration device | |
| CN213182019U (en) | Electric power engineering construction is with distancer that has location structure | |
| CN210834775U (en) | Continuous test ultrasonic flaw detector | |
| CN208907804U (en) | A kind of Novel GPS total station | |
| CN111521504A (en) | High-strength ceramic roller wear-resistance detection device | |
| CN208058305U (en) | A kind of locating support of high-purity detector | |
| CN114216424B (en) | Pipe corner measurement tool | |
| CN211262091U (en) | Device for detecting roundness of wheel hub | |
| CN216923755U (en) | Microphone array asynchronous measuring platform | |
| CN219531874U (en) | Inspection device for track flaw detection wheel runout | |
| CN219161303U (en) | Building engineering ranging wheel with shock-absorbing function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |