CN204262268U - A kind of railway freight-car 120 valve protective cover rivet riveting dismounting is standby - Google Patents
A kind of railway freight-car 120 valve protective cover rivet riveting dismounting is standby Download PDFInfo
- Publication number
- CN204262268U CN204262268U CN201420594611.9U CN201420594611U CN204262268U CN 204262268 U CN204262268 U CN 204262268U CN 201420594611 U CN201420594611 U CN 201420594611U CN 204262268 U CN204262268 U CN 204262268U
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- CN
- China
- Prior art keywords
- splitter
- riveting machine
- riveting
- quick coupler
- hydraulic
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- 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.)
- Withdrawn - After Issue
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
- B21J15/50—Removing or cutting devices for rivets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The utility model provides a kind of railway freight-car 120 valve protective cover rivet riveting dismounting standby, and this rivet riveting dismounting is standby to be made up of riveting machine, splitter and hydraulic hand-pump; Described splitter comprises splitter oil cylinder composition, splitter piston, cutter head assembly, positioning sleeve, splitter connect overcoat, C type pincers, spring, oil pipe and hydraulic quick coupler; Described riveting machine comprises riveting machine oil cylinder composition, riveting machine piston, inner sleeve, overcoat, riveting machine connection overcoat, clamping lobe, upper limit cover, lower limit cover, buffering protheca, buffering rear cover, spring, oil pipe and hydraulic quick coupler; Hydraulic hand-pump is provided with the pump housing, reversal valve, oil pipe and hydraulic quick coupler, reversal valve adopts manual mode.The technical program is used for riveted joint and the orcible entry of railway freight-car 120 valve protective cover position Φ 12 pultrusion rivet, riveting molding is good, it is smooth and easy to tear down, and carries, easy to operate, under can solving the condition without power sources such as electricity, gas, Quick-rivet or orcible entry rivet collar, realize the dismounting to 120 valve protective covers.
Description
Technical field:
The utility model relates to riveting technology field, and particularly relate to the riveted joint of a kind of cold extrusion pulling rivet and remove equipment technology field, a kind of railway freight-car 120 valve protective cover rivet riveting dismounting is standby specifically.
Background technology:
Existing railway freight-car 120 valve protective cover casing and upper cover directly adopt six Φ 12 pultrusion rivet interlacement, all protective cover will be taken apart, realize the maintenance to 120 valves when section is repaiied or 120 valves are out of order.At present, adopt the method for gas flame cuttiug at section repair shop, cut away rivet, take off protective cover, after 120 valves have overhauled, again protective cover is riveted, thus reach protection, loss prevention function.
Along with Chinese Railway heavy-duty freight car runs, hangs together increasing number, the car of closing the door that some braking reasons cause, needs to process on the line in time, with guarantee railway percent of pass, ensures safety, cost-saving.Original maintenance of the section of entering temporarily, the time is long, and cost is high, the requirement of inadaptable transport.And process brake fault on the line, and adopt the mode of gas flame cuttiug to take off 120 valve protective covers, very not convenient yet.Therefore especially need a kind of maintainer of meeting to be easy to carry and the equipment of protective cover under fast fetching and can be loaded onto under the condition without power sources such as electricity, gas.
Summary of the invention:
It is standby that the technical problems to be solved in the utility model is to provide a kind of railway freight-car 120 valve protective cover rivet riveting dismounting, it carries, easy to operate, Quick-rivet or orcible entry rivet collar under the condition without power sources such as electricity, gas can be solved, realize the dismounting to 120 valve protective covers.
To achieve these goals, the utility model adopts following technical scheme:
The utility model provides a kind of railway freight-car 120 valve protective cover rivet riveting dismounting standby, this rivet riveting dismounting is standby by riveting machine, splitter and hydraulic hand-pump composition, its key technology is: described splitter comprises splitter oil cylinder composition, splitter piston, cutter head assembly, positioning sleeve, splitter connects overcoat, C type clamps, splitter spring, splitter oil inlet pipe, splitter oil return pipe, splitter hydraulic quick coupler, splitter hydraulic quick coupler socket, retaining bar, splitter oil cylinder composition adopts forward end seal structure, splitter piston is threaded with cutter head assembly, splitter connects overcoat and forms with splitter oil cylinder and be threaded, cutter head assembly is connected between overcoat with splitter, it is all matched in clearance between cutter head assembly and positioning sleeve, C type pincers are connected sleeve thread with splitter and connect, splitter oil cylinder composition front end connects splitter oil inlet pipe and splitter oil return pipe, splitter oil inlet pipe is connected with splitter hydraulic quick coupler, splitter oil return pipe is connected with splitter hydraulic quick coupler socket, described riveting machine comprises riveting machine oil cylinder composition, riveting machine piston, inner sleeve, overcoat, riveting machine connects overcoat, clamping lobe, upper limit cover, lower limit cover, buffering protheca, cover after buffering, riveting machine spring, riveting machine oil inlet pipe, riveting machine oil return pipe, riveting machine hydraulic quick coupler, riveting machine hydraulic quick coupler socket, riveting machine oil cylinder composition adopts forward end seal structure, be threaded between inner sleeve with riveting machine piston, buffering protheca, matched in clearance between cover and inner sleeve after buffering, riveting machine connects overcoat and forms with riveting machine oil cylinder and be threaded, overcoat be connected sleeve thread and connect, upper limit cover, threaded engagement between lower limit cover, riveting machine oil cylinder composition front end connects riveting machine oil inlet pipe and riveting machine oil return pipe, riveting machine oil inlet pipe is connected with riveting machine hydraulic quick coupler, riveting machine oil return pipe is connected with riveting machine hydraulic quick coupler socket, described hydraulic hand-pump is provided with the hydraulic hand-pump pump housing, reversal valve, handle, flowline, oil return pipe, hydraulic hand-pump hydraulic quick coupler, hydraulic hand-pump hydraulic quick coupler socket, the hydraulic hand-pump pump housing is fixedly connected with reversal valve, handle is arranged on reversal valve, reversal valve connects flowline and oil return pipe, and flowline is connected with hydraulic hand-pump hydraulic quick coupler socket, oil return pipe is connected with hydraulic hand-pump hydraulic quick coupler.
Compared with prior art, the beneficial effect that the utility model has is:
1, rivet riveting dismounting of the present utility model is ready for use on riveted joint and the orcible entry of railway freight-car 120 valve protective cover position Φ 12 pultrusion rivet, hydraulic control mode is adopted because this riveting dismounting is standby, easy to operate, power supply need not be connected during work, safe and reliable, under can solving the condition without power sources such as electricity, gas, Quick-rivet or orcible entry rivet collar, realize the dismounting to 120 valve protective covers.
2, rivet riveting dismounting of the present utility model has been got everything ready, and the scope of conforming is wide, riveting molding good, it is smooth and easy to tear down, and whole device volume is little, the feature such as to carry, easy to operate.
3, the splitter that rivet riveting dismounting of the present utility model is standby arranges C type pincers, can hold rivet position to be removed fast; C type pincers are upper arranges the C type groove matched with rivet head, when carrying out rivet removal work, C type groove entangles rivet head, can play the effect of quick position rivet, in the process that cuts nail, positioning sleeve is accurately located rivet, can significantly improve rivet removal operating efficiency.
4, rivet riveting of the present utility model is torn open when being equipped in rivet removal is cut rivet collar, falls until rivet collar breaks, and to rivet nail bar not damaged, improves the service life of cutter head assembly.
5, splitter of the present utility model carries out brokenly cutting through in journey, and belong to cold-extruded and crush and cut, connected piece is substantially unaffected, can not as in gas cutting process because the rising of temperature can cause the deformation of connected piece.
6, the cutter head assembly of splitter of the present utility model can be changed after damaging.
7, also have on the market at present in the overcoat inner circle of riveting machine, fill blade, inner sleeve has escape, makes riveting machine become splitter, dual-use, installs blade in use or take off blade according to need of work, change frequent, add the non-productive work time.Splitter of the present utility model and riveting machine separately use, during use, the flowline of the oil inlet pipe on splitter or riveting machine, oil return pipe and hydraulic hand-pump, oil return pipe are connected by hydraulic quick coupler, hydraulic quick coupler socket, reduce the time of more allowing blade replacement, the effective time can be increased, increase work efficiency.
In sum, the utility model is novel in design, structure is simple, easy to use, safe, laborsaving, the efficiency that saves time is high, and to rivet nail bar not damaged, both the time that dismounting is repaired had been shortened, again save rehabilitation cost, and under the condition without power sources such as electricity, gas can be solved, railway freight-car 120 valve protective cover rivet is riveted or orcible entry work.
Accompanying drawing illustrates:
Fig. 1 is splitter structure sectional view of the present utility model;
Fig. 2 is riveting machine structure sectional view of the present utility model;
Fig. 3 is splitter using state sectional view of the present utility model;
Fig. 4 is riveting machine using state sectional view of the present utility model;
Fig. 5 is hydraulic hand-pump structural representation of the present utility model;
Fig. 6 is the connection layout of splitter of the present utility model and hydraulic hand-pump;
Fig. 7 is the connection layout of riveting machine of the present utility model and hydraulic hand-pump.
Identify in figure:
1-splitter; 2-riveting machine; 3-hydraulic hand-pump; 4-rivet; 5-rivet collar; 6-anti-cover case.
1.1-splitter oil cylinder forms; 1.2-splitter piston; 1.3-cutter head assembly; 1.4-positioning sleeve; 1.5-splitter connects overcoat; 1.6-C type clamps; 1.7-splitter spring; 1.8-C type groove; 1.9-splitter oil inlet pipe; 1.10-splitter oil return pipe; 1.11-splitter hydraulic quick coupler; 1.12-splitter hydraulic quick coupler socket; 1.13-retaining bar; 1.31-cutter head assembly endoporus.
2.1-riveting machine oil cylinder forms; 2.2-riveting machine piston; 2.3-inner sleeve; 2.4-overcoat; 2.5-riveting machine connects overcoat; 2.6-clamping lobe; 2.7-upper limit cover; 2.8-lower limit cover; 2.9-buffering protheca; Cover after 2.10-buffering; 2.11-riveting machine spring; 2.12-riveting machine oil return pipe; 2.13-riveting machine oil inlet pipe; 2.14-riveting machine hydraulic quick coupler socket; 2.15-riveting machine hydraulic quick coupler.
The 3.1 hydraulic hand-pump pump housings; 3.2-reversal valve; 3.3-handle; 3.4-flowline; 3.5-oil return pipe; 3.6-hydraulic hand-pump hydraulic quick coupler socket; 3.7-hydraulic hand-pump hydraulic quick coupler.
Detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.But this should be interpreted as that the scope of above-mentioned theme of the present utility model is only limitted to following embodiment.
Composition graphs 1-Fig. 7, the utility model provides a kind of railway freight-car 120 valve protective cover rivet riveting dismounting standby, this rivet riveting dismounting is standby to be made up of riveting machine 2, splitter 1 and hydraulic hand-pump 3, splitter 1 is for the orcible entry by rivet collar 5, riveting machine 2 is for the riveted joint of rivet 4, and hydraulic hand-pump 3 provides power source.
The standby splitter 1 of this rivet riveting dismounting forms 1.1 by splitter oil cylinder, splitter piston 1.2, cutter head assembly 1.3, positioning sleeve 1.4, splitter connect overcoat 1.5, C type clamps 1.6, splitter spring 1.7, splitter oil inlet pipe 1.9, splitter oil return pipe 1.10, splitter hydraulic quick coupler 1.11, splitter hydraulic quick coupler socket 1.12, retaining bar 1.13 etc. form, splitter oil cylinder composition 1.1 adopts forward end seal structure, owing to using hydraulic hand-pump 3, splitter oil cylinder composition 1.1 is inner without compensating groove.Splitter piston 1.2 is threaded with cutter head assembly 1.3; Splitter connection overcoat 1.5 forms 1.1 with splitter oil cylinder and is threaded; It is all matched in clearance that cutter head assembly 1.3 is connected with splitter between overcoat 1.5, between cutter head assembly 1.3 and positioning sleeve 1.4.Cutter head assembly 1.3 has two symmetrical blades, with cutter hub overall processing, blade angle adopts multi-line section globoidal structure, strengthens blade strength, reduces brokenly shear force.Positioning sleeve 1.4 is promoted parallel with cutter head assembly 1.3 by spring 1.7, positioning sleeve 1.4 can be free to slide in cutter head assembly endoporus 1.31; C type pincers 1.6 are connected overcoat 1.5 with splitter and are threaded.C type pincers are upper arranges the C type groove 1.8 matched with rivet 4 ailhead, and carry out rivet 4 when removing work, C type groove 1.8 entangles rivet 4 ailhead, can play the effect of quick position rivet 4.Splitter oil cylinder forms 1.1 front ends and is connected with two oil pipes, one is splitter oil inlet pipe 1.9, another root is splitter oil return pipe 1.10, and splitter oil inlet pipe 1.9 is connected with splitter hydraulic quick coupler 1.11, splitter oil return pipe 1.10 is connected with splitter hydraulic quick coupler socket 1.12.
The standby riveting machine 2 of this rivet riveting dismounting forms 2.1 by riveting machine oil cylinder, riveting machine piston 2.2, inner sleeve 2.3, overcoat 2.4, riveting machine connect overcoat 2.5, clamping lobe 2.6, upper limit overlap 2.7, lower limit overlaps 2.8, cover 2.10, riveting machine spring 2.11, riveting machine oil return pipe 2.12, riveting machine oil inlet pipe 2.13, riveting machine hydraulic quick coupler socket 2.14, riveting machine hydraulic quick coupler 2.15 etc. form after buffering protheca 2.9, buffering.Riveting machine oil cylinder forms 2.1 features and splitter oil cylinder and forms 1.1 identical, all adopts oil cylinder forward end seal structure; Be threaded between inner sleeve 2.3 with riveting machine piston 2.2, matched in clearance between cover 2.10 and inner sleeve 2.3 after buffering protheca 2.9, buffering; Clamping lobe 2.6 is made up of three lobes, and being unfolding mode under free state, is closure state during blind rivet, is opened by the cooperation between lower limit cover 2.8 and buffering protheca 2.9, is closed; Riveting machine connection overcoat 2.5 forms 2.1 with riveting machine oil cylinder and is threaded; Overcoat 2.4 is connected overcoat 2.5 and is threaded with riveting machine; Threaded engagement between upper limit cover 2.7, lower limit cover 2.8; The extruded endoporus of overcoat 2.4 adopts lower resistance molding mode.Riveting machine oil cylinder forms 2.1 front ends and is connected with two oil pipes, one is riveting machine oil return pipe 2.12, another root is riveting machine oil inlet pipe 2.13, and riveting machine oil return pipe 2.12 is connected with riveting machine hydraulic quick coupler socket 2.14, riveting machine oil inlet pipe 2.13 is connected with riveting machine hydraulic quick coupler 2.15.
The hydraulic hand-pump 3 that this rivet riveting dismounting is standby is provided with the hydraulic hand-pump pump housing 3.1, reversal valve 3.2, handle 3.3, flowline 3.4, oil return pipe 3.5, hydraulic hand-pump hydraulic quick coupler socket 3.6, hydraulic hand-pump hydraulic quick coupler 3.7.The hydraulic hand-pump pump housing 3.1 is fixedly connected with reversal valve 3.2, reversal valve 3.2 adopts manual mode, maximum pressure can reach 70MPa, handle 3.3 is arranged on reversal valve 3.2, handle 3.3 and axial vertical 90 degree of hydraulic hand-pump 3 are blind rivet or the position that cuts nail, handle 3.3 and the axial level of hydraulic hand-pump 3 follow closely position for moving back, and 45 degree is off-load position.Reversal valve 3.2 is connected with two oil pipes, and one is flowline 3.4, and another root is oil return pipe 3.5, and flowline 3.4 is connected with hydraulic hand-pump hydraulic quick coupler socket 3.6, oil return pipe 3.5 is connected with hydraulic hand-pump hydraulic quick coupler 3.7.
Use this rivet riveting dismounting for when tearing down, first splitter hydraulic quick coupler 1.11 is inserted hydraulic hand-pump hydraulic quick coupler socket 3.6, hydraulic hand-pump hydraulic quick coupler 3.7 inserts splitter hydraulic quick coupler socket 1.12, realize the connection of splitter 1 and hydraulic hand-pump 3, then the C type pincers 1.6 on splitter 1 are placed in anti-cover case 6 surface, the reversal valve 3.1 on hydraulic hand-pump 3 is placed in the position that cuts nail.Rivet 4 broken end puts in positioning sleeve 1.4 endoporus and carries out self-centering, in the process that cuts nail, positioning sleeve 1.4 pairs of rivets 4 are accurately located, C type clamps 1.6 stressed, splitter oil cylinder composition 1.1 promotes splitter piston 1.2 and drives cutter head assembly 1.3 uniform stressed, cutting rivet collar 5, fall until break, complete brokenly the work of cutting rivet collar 4.Overturn by retaining bar 1.13, hydraulic hand-pump 3 commutates, and exits cutter head assembly 1.3.Rivet 4 is reusable.When not using, splitter hydraulic quick coupler 1.11, hydraulic hand-pump hydraulic quick coupler 3.7 are pulled up from corresponding hydraulic quick coupler socket.
Use this rivet riveting dismounting for when riveting, first riveting machine hydraulic quick coupler 2.15 is inserted hydraulic hand-pump hydraulic quick coupler socket 3.6, hydraulic hand-pump hydraulic quick coupler 3.7 inserts riveting machine hydraulic quick coupler socket 2.14, realize the connection of riveting machine 2 and hydraulic hand-pump 3, then the overcoat 2.4 of riveting machine is put at position of being breaked end by rivet 4, and the reversal valve 3.1 of hydraulic hand-pump 3 is placed in blind rivet position.Riveting machine oil cylinder composition 2.1 promotes riveting machine pistons 2.2 and moves with inner sleeve 2.3, clamps lobe 2.6 and firmly grasp rivet 4 and to break end position under the spring-force driven dual of riveting machine spring 2.11; Riveting machine oil cylinder composition 2.1 moves with overcoat 2.4 simultaneously, and extruding rivet collar 5, realizes riveted joint.After having riveted, retaining plate overturns, and overcoat 2.4 exits from rivet collar 5, completes and once rivets.When not using, broken riveting machine hydraulic quick coupler 2.15, hydraulic hand-pump hydraulic quick coupler 3.7 are pulled up from corresponding hydraulic quick coupler socket.
Claims (5)
1. a railway freight-car 120 valve protective cover rivet riveting dismounting is standby, and this rivet riveting dismounting is standby to be made up of riveting machine (2), splitter (1) and hydraulic hand-pump (3), it is characterized in that:
Described splitter (1) comprises splitter oil cylinder composition (1.1), splitter piston (1.2), cutter head assembly (1.3), positioning sleeve (1.4), splitter connects overcoat (1.5), C type pincers (1.6) and splitter spring (1.7), splitter oil inlet pipe (1.9), splitter oil return pipe (1.10), splitter hydraulic quick coupler (1.11), splitter hydraulic quick coupler socket (1.12) and retaining bar (1.13), splitter oil cylinder composition (1.1) adopts forward end seal structure, splitter piston (1.2) is threaded with cutter head assembly (1.3), splitter connection overcoat (1.5) forms (1.1) and is threaded with splitter oil cylinder, cutter head assembly (1.3) is connected between overcoat (1.5) with splitter, it is all matched in clearance between cutter head assembly (1.3) and positioning sleeve (1.4), C type pincers (1.6) is connected overcoat (1.5) and is threaded with splitter, splitter oil cylinder composition (1.1) front end connects splitter oil inlet pipe (1.9) and splitter oil return pipe (1.10), and splitter oil inlet pipe (1.9) is connected with splitter hydraulic quick coupler (1.11), splitter oil return pipe (1.10) is connected with splitter hydraulic quick coupler socket (1.12),
Described riveting machine (2) comprises riveting machine oil cylinder composition (2.1), riveting machine piston (2.2), inner sleeve (2.3), overcoat (2.4), riveting machine connects overcoat (2.5), clamping lobe (2.6), upper limit cover (2.7), lower limit cover (2.8), buffering protheca (2.9), cover (2.10) after buffering, riveting machine spring (2.11), riveting machine oil return pipe (2.12), riveting machine oil inlet pipe (2.13), riveting machine hydraulic quick coupler socket (2.14), riveting machine hydraulic quick coupler (2.15), riveting machine oil cylinder composition (2.1) adopts forward end seal structure, is threaded between inner sleeve (2.3) with riveting machine piston (2.2), buffering protheca (2.9), matched in clearance between cover (2.10) and inner sleeve (2.3) after buffering, riveting machine connection overcoat (2.5) forms (2.1) and is threaded with riveting machine oil cylinder, overcoat (2.4) is connected overcoat (2.5) and is threaded with riveting machine, upper limit cover (2.7), threaded engagement between lower limit cover (2.8), riveting machine oil cylinder composition (2.1) front end connects riveting machine oil return pipe (2.12) and riveting machine oil inlet pipe (2.13), and riveting machine oil return pipe (2.12) is connected with riveting machine hydraulic quick coupler socket (2.14), riveting machine oil inlet pipe (2.13) is connected with riveting machine hydraulic quick coupler (2.15),
Described hydraulic hand-pump (3) is provided with the hydraulic hand-pump pump housing (3.1), reversal valve (3.2), handle (3.3), flowline (3.4), oil return pipe (3.5), hydraulic hand-pump hydraulic quick coupler socket (3.6), hydraulic hand-pump hydraulic quick coupler (3.7), the hydraulic hand-pump pump housing (3.1) is fixedly connected with reversal valve (3.2), handle (3.3) is arranged on reversal valve (3.2), reversal valve (3.2) connects flowline (3.4), with oil return pipe (3.5), flowline (3.4) is connected with hydraulic hand-pump hydraulic quick coupler socket (3.6), oil return pipe (3.5) is connected with hydraulic hand-pump hydraulic quick coupler (3.7).
2. a kind of railway freight-car 120 valve protective cover rivet riveting dismounting according to claim 1 is standby, it is characterized in that: the cutter head assembly (1.3) of described splitter has two symmetrical blades, and with cutter hub overall processing, blade angle adopts multi-line section globoidal structure.
3. a kind of railway freight-car 120 valve protective cover rivet riveting dismounting according to claim 1 is standby, it is characterized in that: the clamping lobe (2.6) of described riveting machine (2) is made up of three lobes, being unfolding mode under free state, is closure state during blind rivet.
4. a kind of railway freight-car 120 valve protective cover rivet riveting dismounting according to claim 1 is standby, it is characterized in that: C type pincers (1.6) of described riveting machine (2) is provided with C type groove (1.8).
5. a kind of railway freight-car 120 valve protective cover rivet riveting dismounting according to claim 1 is standby, it is characterized in that: the reversal valve (3.2) on described hydraulic hand-pump (3) adopts manual mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594611.9U CN204262268U (en) | 2014-10-14 | 2014-10-14 | A kind of railway freight-car 120 valve protective cover rivet riveting dismounting is standby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594611.9U CN204262268U (en) | 2014-10-14 | 2014-10-14 | A kind of railway freight-car 120 valve protective cover rivet riveting dismounting is standby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204262268U true CN204262268U (en) | 2015-04-15 |
Family
ID=52797167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594611.9U Withdrawn - After Issue CN204262268U (en) | 2014-10-14 | 2014-10-14 | A kind of railway freight-car 120 valve protective cover rivet riveting dismounting is standby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204262268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368743A (en) * | 2014-10-14 | 2015-02-25 | 南车眉山车辆有限公司 | Wagon 120-valve protection hood rivet disassembling device |
| CN109202005A (en) * | 2017-11-24 | 2019-01-15 | 中国航空制造技术研究院 | A kind of device and rivet method for dismounting of removing rivet |
-
2014
- 2014-10-14 CN CN201420594611.9U patent/CN204262268U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368743A (en) * | 2014-10-14 | 2015-02-25 | 南车眉山车辆有限公司 | Wagon 120-valve protection hood rivet disassembling device |
| CN109202005A (en) * | 2017-11-24 | 2019-01-15 | 中国航空制造技术研究院 | A kind of device and rivet method for dismounting of removing rivet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150415 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |