CN109610251A - Switch changing and laying vehicle and railway switch change paving system - Google Patents

Switch changing and laying vehicle and railway switch change paving system Download PDF

Info

Publication number
CN109610251A
CN109610251A CN201910085796.8A CN201910085796A CN109610251A CN 109610251 A CN109610251 A CN 109610251A CN 201910085796 A CN201910085796 A CN 201910085796A CN 109610251 A CN109610251 A CN 109610251A
Authority
CN
China
Prior art keywords
switch changing
laying vehicle
walker
frame
switch
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
Application number
CN201910085796.8A
Other languages
Chinese (zh)
Inventor
陈海洲
李志强
陈晓路
刘晓
田建周
段发林
柴伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Luyuan Electromechanical Equipment Maintenance Co Ltd
Original Assignee
Zhengzhou Luyuan Electromechanical Equipment Maintenance Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Luyuan Electromechanical Equipment Maintenance Co Ltd filed Critical Zhengzhou Luyuan Electromechanical Equipment Maintenance Co Ltd
Priority to CN201910085796.8A priority Critical patent/CN109610251A/en
Publication of CN109610251A publication Critical patent/CN109610251A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/02Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

The invention belongs to switch changing and laying technical fields.A kind of switch changing and laying vehicle, including walker, reversing frame and bearing frame, walker bottom are provided with walking component;Reversing frame revolving support is arranged on the walker;Bearing frame is fixed on the reversing frame, and bearing base is provided on the bearing frame, and the bearing base is slidably arranged on the bearing frame.A kind of railway switch changes paving system, including switch changing and laying unit, switch changing and laying vehicle and control system.Overall construction design of the present invention is reasonable, realize the support to the sleeper after assembling, simultaneously when advancing on the track for carrying out certain radian, orientation adjustment effectively can be carried out to sleeper by revolution and sliding movement, it is supported to meet stablizing for sleeper, the sleeper after avoiding assembling shifts on multiple groups switch changing and laying vehicle;The application can also reasonably optimize and adjust the stress condition of switch changing and laying vehicle, ensure coming into full contact between sleeper and switch changing and laying vehicle.

Description

Switch changing and laying vehicle and railway switch change paving system
Technical field
The invention belongs to switch changing and laying technical fields, and in particular to a kind of switch changing and laying vehicle and railway switch change paving system.
Background technique
Existing track switch, which is laid with, mostly uses the combination of artificial and equipment to carry out constructing operation, i.e., by manually cooperating with crane Cloth pillow is carried out, in track switch process of deployment, the assembling for first carrying out sleeper is generally required, is with sleeper after 48 meters of length of assembling Example, weight reach more than 100 tons, when carrying out changing paving operation to track switch, need to exert a force or pass through jointly by hundreds of individuals The pulling equipments such as excavator carry out mobile operation to it, and in the whole process, not only large labor intensity, working efficiency is low, and It is difficult to control moving distance when carrying out subsequent positioning, and there is the risk of the destruction to sleeper, influences the use effect of track switch Fruit.
Applicant has submitted 2017213577815 patent application on October 20th, 2017, discloses a kind of for road Trouble changes the hydraulic moving wheel vehicle and traveling wheel vehicle group of paving, so as to realize that the transport to the sleeper after assembling is mobile, mentions significantly Its high working efficiency.
However, in the long-term use process, however it remains some other problems, such as in the track for having certain radian On, it when carrying out switch changing and laying, turns, there are sliding friction between sleeper and traveling wheel vehicle, serious situation is pillow Wood is detached from traveling wheel vehicle, therefore in some special applications, existing in the case where some conditions are relatively harsh Equipment in technology still has some potential safety problems.
Summary of the invention
The purpose of the present invention is in view of the above problems and insufficient, provide a kind of reasonable in design, stability is good, It can effectively realize switch changing and laying, and improve the safety of operation and the switch changing and laying vehicle and iron of the adaptability to construction operating condition Road switch changing and laying system.
In order to achieve the above objectives, it is adopted the technical scheme that:
A kind of switch changing and laying vehicle, comprising: walker, bottom are provided with walking component;Reversing frame, revolving support are arranged in institute It states on walker;And bearing frame, it is fixed on the reversing frame, bearing base, institute is provided on the bearing frame Bearing base is stated to be slidably arranged on the bearing frame.
Switch changing and laying vehicle according to the present invention, it is preferable that it is provided with gyro black assembly between the reversing frame and the walker, The gyro black assembly includes: the rotating shaft being arranged between the reversing frame and the walker;And it is laid in the revolution The support roller of frame lower part is provided with rotary oscillation roller-way corresponding with support roller on the walker.
Switch changing and laying vehicle according to the present invention, it is preferable that sliding rail, the bearing base are arranged in parallel on the bearing frame Matching is slidably arranged on the sliding rail.
Switch changing and laying vehicle according to the present invention, it is preferable that the walker includes: main brace beam;And it is laid in the main brace The stringer at beam both ends, stringer described in two groups and the main brace beam arrange that the walking component is laid in two groups in I-shaped structure The end of the stringer.
Switch changing and laying vehicle according to the present invention, it is preferable that the main brace beam includes: the left beam slab and You Liang that left and right is correspondingly arranged Plate;And support seat, connection are arranged in the middle part of the left beam slab and the right beam slab, and the support seat is by the left beam Cavity between plate and right beam slab is divided into left accommodating cavity and right accommodating cavity, is additionally provided with reinforcement in the two sides of the support seat Plate.
Switch changing and laying vehicle according to the present invention, it is preferable that be laid with respectively in the left accommodating cavity and the right accommodating cavity dynamic Power unit and control unit, described control unit control the movement of the walking component.
Switch changing and laying vehicle according to the present invention, it is preferable that the stringer includes: the stringer main body in T font;And wheel frame, The traveling wheel matching of its end for being fixed at the stringer main body, the walking component is arranged in the wheel frame.
Switch changing and laying vehicle according to the present invention, it is preferable that the walking component includes: traveling wheel, traveling wheel cloth described in four groups It is located at each end angle of the walker;And driving unit, the driving unit include hydraulic motor or/and electric motor.
Switch changing and laying vehicle according to the present invention, it is preferable that right when the driving unit includes hydraulic motor and electric motor The wherein traveling wheel described in two groups of angle arrangement is connect with hydraulic motor transmission described in two groups respectively, traveling wheel and two described in another two groups The group electric motor transmission connection.
A kind of railway switch changes paving system, comprising: switch changing and laying unit;The above-mentioned switch changing and laying vehicle of multiple groups;And control System.
By adopting the above technical scheme, acquired beneficial effect is:
Overall construction design of the present invention is reasonable, passes through reversing frame, bearing frame, the layer structure arrangement of walker and drive mechanism Design realizes the support to the sleeper after assembling, while when advancing on the track for carrying out certain radian, can be by returning Turn and sliding movement effectively carries out orientation adjustment to sleeper, is supported to meet stablizing for sleeper, the sleeper after avoiding assembling It shifts on multiple groups switch changing and laying vehicle, avoids the generation of safety accident;The application reasonably can also optimize and adjust Trouble changes the stress condition of paving vehicle, ensures coming into full contact between sleeper and switch changing and laying vehicle.
Design of the application for each layer structure of reversing frame, bearing frame, walker, not only increases between its each component Assembly performance so that connected between each component it is compact, convenient for assembly, and can be realized the one of dynamical system and control system Bodyization integration, so that equipment integrally realizes the structure design of miniaturization and automation, the sleeper after capable of effectively reducing assembling Center of gravity, improve mobile safety.
The driving unit of the application, using the drive form of the staggeredly combination arrangement of hydraulic motor and electric motor, energy Enough realize uses different drive forms in the different periods, can be realized by electric motor from walking, convenient for being used in turn, It by hydraulic motor, can be connect with the hydraulic system of switch changing and laying unit, realize the conveying to the sleeper after assembling, had very Strong flexibility.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, hereinafter by the attached drawing to the embodiment of the present invention into Row is simple to be introduced.Wherein, attached drawing is used only for showing some embodiments of the present invention, rather than whole embodiments of the invention are limited It is formed on this.
Fig. 1 is the structural schematic diagram according to the switch changing and laying vehicle of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram according to the walker of the embodiment of the present invention.
Fig. 3 is the overlooking structure diagram of Fig. 2.
Fig. 4 is the backsight structural representation of Fig. 2.
Fig. 5 is the structural schematic diagram according to the reversing frame of the embodiment of the present invention.
Fig. 6 is the backsight structural representation of Fig. 5.
Fig. 7 is the left view structural representation of Fig. 5.
Fig. 8 is the overlooking structure diagram of Fig. 5.
Fig. 9 is the structural schematic diagram according to the bearing frame of the embodiment of the present invention.
Figure 10 is the backsight structural representation of Fig. 9.
Figure 11 is the left view structural representation of Fig. 9.
Figure 12 is the overlooking structure diagram of Fig. 9.
Serial number in figure:
100 be walker, 110 be main brace beam, 111 be left beam slab, 112 be right beam slab, 113 be support seat, 114 be stiffening plate, 115 for left accommodating cavity, 116 be right accommodating cavity, 120 be stringer, 121 be stringer main body, 122 be wheel frame;131 for hydraulic motor, 132 it is electric motor, 133 is traveling wheel;
200 it is reversing frame, 201 be rotating shaft, 202 be support roller, 203 is shaft fixing block;
300 it is bearing frame, 301 be bearing base, 302 is sliding rail.
Specific embodiment
In order to enable the purpose of technical solution of the present invention, technical characteristic and technical effect are clearer, it hereinafter will knot The attached drawing for closing the specific embodiment of the invention, is clearly and completely described the exemplary scenario of the embodiment of the present invention.
Referring to Fig. 1-Figure 12, a kind of switch changing and laying vehicle of the present invention, including walker 100, reversing frame 200 and bearing frame 300, 100 bottom of walker is provided with walking component;200 revolving support of reversing frame is arranged on the walker 100;Bearing frame 300 It is fixed on the reversing frame 200, bearing base 301 is provided on the bearing frame 300, the bearing base 301 slides It is arranged on the bearing frame 300, in action process, drives walker, reversing frame and bearing frame to carry out by walking component It moves integrally and brakes, the sleeper pressure-bearing after assembling is on bearing base, and when carrying out straight line walking, control walking component movement is Can, when turning, since entire length is long, multiple groups switch changing and laying vehicle can be on no longer same straight line, so that bearing base There are opposing forces between sleeper, so that reversing frame be driven to turn round relative to walker, bearing base is opposite on bearing frame Sliding, to realize multivariant adjustment, the sleeper after ensureing assembling realize it is slow turn slow-readjustment to, that is to say, that can pass through The cooperation of the different adjustment angles of multiple groups switch changing and laying vehicle, substantially reduces the active force between sleeper and bearing base, avoids sending out Raw opposite sliding, avoids the generation of security risk.
Specifically, being provided with gyro black assembly, gyro black assembly between reversing frame 200 and the walker 100 in the present embodiment Including the rotating shaft 201 being arranged between the reversing frame 200 and the walker 100 and it is laid in the reversing frame 200 The support roller 202 of lower part is provided with rotary oscillation roller-way corresponding with support roller 202 on the walker 100;Wherein, it props up Runner can be to be laid in two groups of reversing frame both ends, or the multiple groups being uniformly laid on reversing frame, to ensure revolution The support stress condition of frame;The sliding range of rotary oscillation angle and bearing base for reversing frame, can be according to walking track Turning radian be designed, according to reaching the corresponding slow regulating effect for turning slow sliding.
For gyro black assembly, above structure is disclosed in the attached drawing of the present embodiment, can also be other revolving support knots Structure, such as revolving platform select different revolutions according to factors such as actual device shaped, the arrangement form of each component, stress conditions Component.
Further, sliding rail 302 is arranged in parallel on bearing frame 300, the matching of bearing base 301 is slidably arranged in institute It states on sliding rail 302, block can be laid at the both ends of bearing frame and middle part and be kept away for limiting the sliding range of bearing base The stress offset for exempting to occur bearing frame causes itself to damage or occur sleeper and the accidents such as topples;For bearing frame and sliding rail, Sliding rail and block can be connected as one as bearing frame by it, be also possible to two components, i.e. bearing frame is as base Plate, sliding rail are fixed on substrate, and for its specific form, the structure of the present embodiment is not uniquely, not to it yet Make specific restriction.
Walker 100 in the present embodiment includes main brace beam 110 and the stringer 120 for being laid in 110 both ends of main brace beam, Two groups of stringers 120 and main brace beam 110 arrange that walking component is laid in the end of two groups of stringers 120 in I-shaped structure.Further , main brace beam 110 includes the left beam slab 111 that left and right is correspondingly arranged and right beam slab 112 and support seat 113, and support seat 113 connects Connect the middle part that the left beam slab 111 and the right beam slab 112 are set, and the support seat 113 is by the left beam slab 111 and the right side Cavity between beam slab 112 is divided into left accommodating cavity 115 and right accommodating cavity 116, is additionally provided in the two sides of the support seat 113 It is laid with power unit and control unit, the control respectively in stiffening plate 114, left accommodating cavity 115 and the right accommodating cavity 116 Unit controls the movement of the walking component, particularly can be used for placing corresponding battery pack, circuit in two accommodating cavities Plate and control valve group avoid excessive accessory structure from causing overall structure oversized so that overall structure is more compact.
Stringer 120 includes the stringer main body 121 and wheel frame 122 in T font, and wheel frame 122 is fixed at the stringer master The matching of traveling wheel 133 of the end of body 121, the walking component is arranged in the wheel frame 122, and walking component includes traveling wheel 133 and driving unit, traveling wheel 133 described in four groups be laid in each end horn ring frame of the walker 100;Driving unit includes Hydraulic motor 131 or/and electric motor 132, that is to say, that driving unit can be individually for hydraulic motor or be individually for electronic Motor or combination for hydraulic motor and electric motor.It includes hydraulic motor 131 that driving unit is preferably in the present embodiment With electric motor 132, diagonally arranged wherein traveling wheel 133 described in two groups is driven with hydraulic motor 131 described in two groups respectively to be connected It connects, electric motor 132 described in traveling wheel 133 described in another two groups and two groups is sequentially connected.
Disclosed herein as well is a kind of railway switch to change paving system, changes including the above-mentioned track switch of switch changing and laying unit, multiple groups Vehicle and control system are spread, so that realizes track switch changes paving work by mutual cooperation.
The application is to be moved by multiple groups switch changing and laying vehicle to the sleeper after assembling, can not only by itself Revolution and sliding, the adjustment of the supporting role between sleeper and switch changing and laying vehicle after realizing assembling, and can be realized precisely Positioning, be convenient for changing paving work, effectively raise the efficiency for changing paving, reduce number of workers and labor required for changing paving Fatigue resistance.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, same or similar part may refer to each other between each embodiment.
Unless otherwise defined, the technical term or scientific term used herein should be in fields of the present invention and has The ordinary meaning that the personage of general technical ability is understood.Used in present specification and claims "one" or The similar word such as " one " also not necessarily indicates quantity limitation.The similar word such as " comprising " or "comprising" means before there is the word The element or object in face cover the element for appearing in the word presented hereinafter or object and its equivalent, and be not excluded for other elements or Person's object." connection " either the similar word such as " connected " not now schedules physics or mechanical connection, but may include Electrical connection, it is either direct or indirect."upper", "lower", "left", "right" etc. are only used for indicating that relative position is closed System, after the absolute position for being described object changes, then the relative positional relationship may also correspondingly change.
It is described in detail exemplary embodiment of the invention above in reference to preferred embodiment, however art technology Personnel it will be appreciated that under the premise of without departing substantially from theory of the present invention, above-mentioned specific embodiment can be made a variety of modifications and Remodeling, and multiple combinations can be carried out to each technical characteristic proposed by the present invention, structure, and without departing from protection model of the invention It encloses, protection scope of the present invention is determined by the attached claims.

Claims (10)

1. a kind of switch changing and laying vehicle characterized by comprising
Walker, bottom are provided with walking component;
Reversing frame, revolving support are arranged on the walker;And
Bearing frame is fixed on the reversing frame, and bearing base, the bearing base sliding are provided on the bearing frame It is arranged on the bearing frame.
2. switch changing and laying vehicle according to claim 1, which is characterized in that be arranged between the reversing frame and the walker There is gyro black assembly, the gyro black assembly includes:
Rotating shaft between the reversing frame and the walker is set;And
It is laid in the support roller of the reversing frame lower part, rotary oscillation roller corresponding with support roller is provided on the walker Road.
3. switch changing and laying vehicle according to claim 1, which is characterized in that be arranged in parallel with sliding rail on the bearing frame Road, the bearing base matching are slidably arranged on the sliding rail.
4. switch changing and laying vehicle according to claim 1, which is characterized in that the walker includes:
Main brace beam;And
The stringer at main brace beam both ends, stringer described in two groups and the main brace beam is laid in arrange in I-shaped structure, it is described Walking component be laid in two groups described in stringer end.
5. switch changing and laying vehicle according to claim 4, which is characterized in that the main brace beam includes:
The left beam slab and right beam slab that left and right is correspondingly arranged;And
Support seat, connection are arranged in the middle part of the left beam slab and the right beam slab, and the support seat is by the left beam slab Cavity between right beam slab is divided into left accommodating cavity and right accommodating cavity, is additionally provided with stiffening plate in the two sides of the support seat.
6. switch changing and laying vehicle according to claim 5, which is characterized in that divide in the left accommodating cavity and the right accommodating cavity It is not laid with power unit and control unit, described control unit controls the movement of the walking component.
7. switch changing and laying vehicle according to claim 4, which is characterized in that the stringer includes:
In the stringer main body of T font;And
Frame is taken turns, the end of the stringer main body is fixed at, the traveling wheel matching of the walking component is arranged in the wheel In frame.
8. switch changing and laying vehicle according to claim 1, which is characterized in that the walking component includes:
Traveling wheel, traveling wheel described in four groups are laid in each end angle of the walker;
And driving unit, the driving unit include hydraulic motor or/and electric motor.
9. switch changing and laying vehicle according to claim 8, which is characterized in that when the driving unit includes hydraulic motor and electricity When dynamic motor, diagonally arranged wherein traveling wheel described in two groups is connect with hydraulic motor transmission described in two groups respectively, another two groups of institutes State the transmission connection of electric motor described in traveling wheel and two groups.
10. a kind of railway switch changes paving system characterized by comprising
Switch changing and laying unit;
Any switch changing and laying vehicle of multiple groups such as claim 1-9;And
Control system.
CN201910085796.8A 2019-01-29 2019-01-29 Switch changing and laying vehicle and railway switch change paving system Pending CN109610251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910085796.8A CN109610251A (en) 2019-01-29 2019-01-29 Switch changing and laying vehicle and railway switch change paving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910085796.8A CN109610251A (en) 2019-01-29 2019-01-29 Switch changing and laying vehicle and railway switch change paving system

Publications (1)

Publication Number Publication Date
CN109610251A true CN109610251A (en) 2019-04-12

Family

ID=66021068

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910085796.8A Pending CN109610251A (en) 2019-01-29 2019-01-29 Switch changing and laying vehicle and railway switch change paving system

Country Status (1)

Country Link
CN (1) CN109610251A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113718562A (en) * 2021-08-30 2021-11-30 云南省铁路集团有限公司 Switch pre-laying insertion construction method
CN115649845A (en) * 2022-10-14 2023-01-31 罗开轩 Fuel cell air rail carrier

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2729127Y (en) * 2004-08-27 2005-09-28 昆明中铁大型养路机械集团有限公司 Switch laying and changing equipment
CN2853880Y (en) * 2005-12-15 2007-01-03 郑州铁路局新乡工务段 Switch transporting trolley
EP1900873A2 (en) * 2006-09-15 2008-03-19 La Falco S.R.L. Process for transporting and laying or replacing railway switches, tracks and sleepers
CN106192625A (en) * 2016-08-29 2016-12-07 中铁七局集团第工程有限公司 A kind of railway switch lays unit
CN209722613U (en) * 2019-01-29 2019-12-03 郑州绿缘机电设备维修有限公司 Switch changing and laying vehicle and railway switch change paving system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2729127Y (en) * 2004-08-27 2005-09-28 昆明中铁大型养路机械集团有限公司 Switch laying and changing equipment
CN2853880Y (en) * 2005-12-15 2007-01-03 郑州铁路局新乡工务段 Switch transporting trolley
EP1900873A2 (en) * 2006-09-15 2008-03-19 La Falco S.R.L. Process for transporting and laying or replacing railway switches, tracks and sleepers
CN106192625A (en) * 2016-08-29 2016-12-07 中铁七局集团第工程有限公司 A kind of railway switch lays unit
CN209722613U (en) * 2019-01-29 2019-12-03 郑州绿缘机电设备维修有限公司 Switch changing and laying vehicle and railway switch change paving system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113718562A (en) * 2021-08-30 2021-11-30 云南省铁路集团有限公司 Switch pre-laying insertion construction method
CN115649845A (en) * 2022-10-14 2023-01-31 罗开轩 Fuel cell air rail carrier

Similar Documents

Publication Publication Date Title
CN206437794U (en) A kind of shaped steel carrying implement for building
CN109610251A (en) Switch changing and laying vehicle and railway switch change paving system
CN107839736A (en) A kind of power construction alarming device of adjustable-angle
CN102912726A (en) Combined type multifunctional bridge inspection trolley
CN107326755A (en) A kind of subway work portable power source formula track laying machine
CN209722613U (en) Switch changing and laying vehicle and railway switch change paving system
CN207550344U (en) Double-crawler type wireless remote control coil buggy
CN102190252B (en) Crawler type gantry crane
CN203729212U (en) Cable loading crane with hydraulic traction and idler wheel walking combined
CN211256692U (en) Transport beam structure of newly-built upper bridge on current bridge
CN202413555U (en) Automatic load and unload equipment for generators
CN210420901U (en) Bridge reinforcing apparatus
CN202785371U (en) Novel simple girder bridge type crane
CN202595587U (en) Device for simultaneously assembling or disassembling steel rails on both sides of railway track
CN215160209U (en) Hoisting device
CN110148907A (en) A kind of block crossing frame of two sides docking
CN105866911B (en) Electric drive cable obstacle detouring actinobacillus device
CN103818860A (en) Operation system for molten stainless steel pouring
CN204508638U (en) A kind of hung type lifting amplitude variation trolley
CN207608831U (en) A kind of New operation device of bridge construction
CN203451005U (en) Numerical-control magnetic-pull upright elevator
CN207664551U (en) A kind of Intelligent cable crane span structure convenient for heat dissipation
CN102979015B (en) Magnetic suspension track-laying vehicle
CN106301193B (en) Solar panel to maintain equipment and its running gear
CN206657993U (en) A kind of nuclear phase instrument special cart

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
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190412