CN108942797A - A kind of electric power overhaul tool for small space - Google Patents
A kind of electric power overhaul tool for small space Download PDFInfo
- Publication number
- CN108942797A CN108942797A CN201811109142.6A CN201811109142A CN108942797A CN 108942797 A CN108942797 A CN 108942797A CN 201811109142 A CN201811109142 A CN 201811109142A CN 108942797 A CN108942797 A CN 108942797A
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- hydraulic
- gear
- electric power
- small space
- reaction torque
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a kind of electric power overhaul tools for small space, its structure includes: ratchet carriage, hydraulic wrench, type plate, reaction torque mandrel, torsion head, hydraulic power unit, hook, circular configuration is in ratchet carriage section and level is through hydraulic wrench inside and using mechanical connection, hydraulic wrench is integrated with ratchet carriage, type plate level is tightly attached to hydraulic wrench side and is pasted together, there are two reaction torque mandrel is set altogether and level is embedded in torsion head inside left end and uses and matches, the improved hydraulic wrench of the present invention is manufactured with high-tech space material and ultra high strength alloy steel, unibody enclosure, reinforce fuselage intensity comprehensively, toughness, can 360 deg rotation ratchet carriage, no use space limitation, can follow one's bent operation.
Description
Technical field
The present invention is a kind of electric power overhaul tool for small space, belongs to electric power overhaul technical field.
Background technique
In electric power overhaul, maintenance spanner is often used, spanner is for dismantling the parts such as the screw of power equipment, also more
Facilitate operation, however it is more narrow for space, and also fastener screws disassembly of fastener or the installation of intensity high requirement
When, trip service spanner is mostly common single pole shape spanner, and the clamp of spanner is mostly fixed arrangement, but the prior art is not complete enough
It is kind, in actual inspection operation, since operating space is narrow, cause when being operated to overhaul of the equipments, it is extremely inconvenient, reverse work
Hydraulic wrench around part is unable to reach the condition of torsion force as counter-force arm supporting point.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of electric power overhaul tool for small space, it is existing to improve
Technology is incomplete, in actual inspection operation, since operating space is narrow, causes when operating to overhaul of the equipments, extremely
Inconvenience reverses the hydraulic wrench around workpiece as counter-force arm supporting point, is unable to reach the deficiency of the condition of torsion force.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of for small space
Electric power overhaul tool, structure includes: ratchet carriage, hydraulic wrench, type plate, reaction torque mandrel, torsion head, hydraulic dynamic
Power unit, hook, circular configuration is in the ratchet carriage section and level through hydraulic wrench inside and uses machine
Tool connection, the hydraulic wrench are integrated with ratchet carriage, and the type plate level is tightly attached to hydraulic torsion and is pulled
Hand side and be pasted together, the reaction torque mandrel set altogether there are two and horizontal insertion torsion head inside left end and use
It matches, the torque head erect is fixed on hydraulic wrench upper end and with hydraulic power unit using interference fit, institute
It states hydraulic power unit and is installed vertically on hook upper end and with hydraulic wrench using being flexibly connected, the hook is horizontal solid
It is scheduled on ratchet carriage right end and is adopted with hydraulic wrench and is secured with nuts, the hydraulic wrench is by gear drive machine
Structure, drive rod, driving assembly, quick coupling, limit plate, torque transfer shaft, torsional pin, reaction torque support plate composition, the tooth
Wheel drive mechanism is vertically arranged to ratchet carriage upper end and with drive rod using being mechanically connected, and the drive rod level insertion is anti-
Torque support intralamellar part left end and with torque transfer shaft using matching, the driving component is installed vertically under quick coupling
Hold and with reaction torque support plate using be interference fitted, the quick coupling be embedded in vertically hydraulic power unit inner upper end and
It is gap-matched with driving assembly, the limit plate rectangular cross-section structure and is uniformly tightly attached to torque transfer shaft upper and lower ends
And weld together, the torque transfer shaft is conllinear with drive rod axle center, and the torsional pin is equipped with multiple and uniform fixation altogether
In hook left and right ends, the reaction torque support plate horizontal nest uses matching in torque transfer shaft outer ring and with driving assembly
It closes.
Preferably, the gear drive is made of first gear, second gear, drawstring, the first gear
It is vertically fixed on ratchet carriage upper end and using mechanical connection, the first gear is conllinear with second gear axle center, and described the
Two gears are vertically arranged to drive rod lower end and with first gear using being meshed, and the drawstring horizontal nest is in first gear
It is flexibly connected with second gear outer ring and use.
Preferably, the drive rod is made of bearing, hydraulic stem, loose slot, the second gear is fixed on vertically
Bearing lower end and using matching, the hydraulic stem horizontal nest in bearing outer ring and with loose slot using being flexibly connected,
Inside the loose slot level insertion reaction torque support plate and weld together.
Preferably, the driving component is made of fairing, connector, coil lead, the fairing is horizontal
It is installed on connector right end and uses interference fit, the connector is vertically fixed on quick coupling lower end and ties for integration
Structure, the coil lead are embedded in inside reaction torque support plate vertically and are gap-matched.
Preferably, the quick coupling is made of connecting plate, substrate, mandrel, the connecting plate section is rectangle knot
Structure and it is tightly attached to substrate bottom end vertically and welds together, the substrate is conllinear with mandrel axle center, the mandrel right angle setting
It is matched in driving assembly upper end and with substrate use.
Preferably, the torque transfer shaft is made of seal washer, the first valve rod, the second valve rod, the gasket
Circle is horizontally fixed on loose slot right end and is gap-matched, and first valve rod is integrated with the second valve rod, institute
It states the second valve rod and is vertically arranged to the first valve rod upper end and with seal washer using interference fit.
Preferably, the reaction torque support plate is made of the first pin shaft, follower lever, the second pin shaft, first pin
Axis is conllinear with the second pin shaft axle center, and the coil lead is vertically embedded into left end inside follower lever and uses mechanical connection, described
Second pin shaft is fixed on the first pin shaft lower end vertically and is gap-matched with follower lever.
Preferably, the hydraulic power unit is vertically arranged to torsion head lower end and uses with hydraulic wrench
Mechanical connection.
Beneficial effect
A kind of electric power overhaul tool for small space of the present invention is not required to special tool(s), and torque repeatable accuracy is high, closes tight
Occasion of gathering facilitates positioning, durable and reliable, it can be achieved that a power head is equipped with the advantages of multiple plug-in units use simultaneously, ratchet carriage
Upper end is equipped with gear drive, carries out driving first gear rotation, under the affecting of drawstring, second gear by drive rod
With rotation, at this point, first gear-and second gear are meshed, complete ratchet carriage and be connected with gear drive, pass through
For loose slot, main function is to the effect exported to hydraulic stem, when the hydraulic stem of loose slot is also driven
Part together constitutes kinematic pair, however bearing is exactly mainly gear drive from it to this distance to transmission parts center
The effect of the arm of force is amplified by mechanism, and quick coupling is sleeved on above driving assembly, is provided with interior hexagon through-hole by ratchet carriage, turns round
One end of square transmission axle is sleeved in reaction torque support plate, and with driving assembly in connection shape, the first pin shaft and the second pin shaft
Middle part is equipped with follower lever, so that ratchet carriage is corresponded to the rectangular teeth on workpiece respectively and utilized
Self structure condition completes the installation of nut and the preload of bolt.
Improved hydraulic wrench is manufactured with high-tech space material and ultra high strength alloy steel, integrally forming machine
Body reinforces fuselage intensity, toughness comprehensively, can 360 deg rotation ratchet carriage, the limitation of no use space can follow one's bent
Operation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the electric power overhaul tool for small space of the present invention.
Fig. 2 is the schematic diagram of internal structure of hydraulic wrench of the present invention.
Fig. 3 is the inside detailed construction schematic diagram of hydraulic wrench of the present invention.
Fig. 4 is the first partial detailed construction schematic diagram in Fig. 3 of the present invention.
Fig. 5 is the second local detailed construction schematic diagram in Fig. 3 of the present invention.
In figure: ratchet carriage -1, hydraulic wrench -2, type plate -3, reaction torque mandrel -4, torsion head -5, hydraulic dynamic
Power unit -6, hook -7, gear drive -21, drive rod -22, driving assembly -23, quick coupling -24, limit plate -25,
Torque transfer shaft -26, torsional pin -27, reaction torque support plate -28, first gear -211, second gear -212, drawstring -213, axis
Hold -221, hydraulic stem -222, loose slot -223, fairing -231, connector -232, coil lead -233, connecting plate -241, base
Plate -242, mandrel -243, seal washer -261, the first valve rod -262, the second valve rod -263, the first pin shaft -281, follower lever -
282, the second pin shaft -283.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, FIG. 1 to FIG. 5
The structure of the electric power overhaul tool of embodiment of the present invention is schematically shown, With reference to embodiment, further
Illustrate the present invention.
Embodiment
As Figure 1-Figure 5, the present invention provides a kind of electric power overhaul tool for small space, and structure includes: spine
Wheel sleeve 1, hydraulic wrench 2, type plate 3, reaction torque mandrel 4, torsion head 5, hydraulic power unit 6, hook 7, the spine
Circular configuration is in 1 section of wheel sleeve and level is through 2 inside of hydraulic wrench and using mechanical connection, the hydraulic torsion
Torque wrench 2 is integrated with ratchet carriage 1, and 3 level of type plate is tightly attached to 2 side of hydraulic wrench and is pasted
Together, there are two the reaction torque mandrel 4 is set altogether and level is embedded in 5 inside left end of torsion head and uses and matches, described
Torsion head 5 is fixed on 2 upper end of hydraulic wrench and with hydraulic power unit 6 using interference fit vertically, described hydraulic dynamic
Power unit 6 is installed vertically on 7 upper ends of hook and with hydraulic wrench 2 using being flexibly connected, and the hook 7 is horizontally fixed on
1 right end of ratchet carriage and adopting with hydraulic wrench 2 is secured with nuts, and the hydraulic wrench 2 is by gear drive
21, drive rod 22, driving assembly 23, quick coupling 24, limit plate 25, torque transfer shaft 26, torsional pin 27, reaction torque support plate
28 compositions, the gear drive 21 are vertically arranged to 1 upper end of ratchet carriage and with drive rod 22 using mechanical connection, institute
It states the horizontal insertion 28 inside left end of reaction torque support plate of drive rod 22 and is used with torque transfer shaft 26 and matched, the driving
Component 23 is installed vertically on 24 lower end of quick coupling and with reaction torque support plate 28 using interference fit, the quick coupling 24
Vertical to be embedded in 6 inner upper end of hydraulic power unit and be gap-matched with driving assembly 23,25 section of limit plate is
Rectangular configuration and uniformly it is tightly attached to 26 upper and lower ends of torque transfer shaft and welds together, the torque transfer shaft 26 and driving
22 axle center of bar is conllinear, and the torsional pin 27 is equipped with multiple altogether and is uniformly fixed on 7 left and right ends of hook, the reaction torque support plate
28 horizontal nests in 26 outer ring of torque transfer shaft and with driving assembly 23 using matching, the gear drive 21 is by the
One gear 211, second gear 212, drawstring 213 form, the first gear 211 be vertically fixed on 1 upper end of ratchet carriage and
Using mechanical connection, the first gear 211 is conllinear with 212 axle center of second gear, and the second gear 212 is vertically arranged to drive
22 lower end of lever and with first gear 211 using being meshed, 213 horizontal nest of drawstring is in first gear 211 and second
212 outer ring of gear and using being flexibly connected, the drive rod 22 is made of bearing 221, hydraulic stem 222, loose slot 223, institute
It states second gear 212 and is fixed on 221 lower end of bearing vertically and using matching, 222 horizontal nest of hydraulic stem is in bearing
221 outer rings and with loose slot 223 using being flexibly connected, inside the horizontal insertion reaction torque support plate 28 of the loose slot 223 simultaneously
And weld together, the driving component 23 is made of fairing 231, connector 232, coil lead 233, the fairing
231 are horizontally installed to 232 right end of connector and use interference fit, and the connector 232 is vertically fixed on 24 lower end of quick coupling
And it is integrated, the coil lead 233 is embedded in 28 inside of reaction torque support plate vertically and is gap-matched, institute
It states quick coupling 24 to be made of connecting plate 241, substrate 242, mandrel 243,241 rectangular cross-section structure of connecting plate and vertical
It is tightly attached to 242 bottom end of substrate and welds together, the substrate 242 is conllinear with 243 axle center of mandrel, and the mandrel 243 is vertical
It is installed on 23 upper end of driving assembly and with substrate 242 using matching, the torque transfer shaft 26 is by seal washer 261, the
One valve rod 262, the second valve rod 263 composition, the seal washer 261 are horizontally fixed on 223 right end of loose slot and using gaps
Cooperation, first valve rod 262 are integrated with the second valve rod 263, and second valve rod 263 is vertically arranged to the first valve
262 upper end of bar and with seal washer 261 using be interference fitted, the reaction torque support plate 28 is by the first pin shaft 281, follower lever
282, the second pin shaft 283 forms, and first pin shaft 281 is conllinear with 283 axle center of the second pin shaft, and the coil lead 233 is vertical
It is embedded in 282 inside left end of follower lever and uses mechanical connection, second pin shaft 283 is fixed under the first pin shaft 281 vertically
It holds and is gap-matched with follower lever 282, the hydraulic power unit 6 is vertically arranged to 5 lower end of torsion head and and liquid
Press torque spanner 2 using mechanical connection.
The present invention is not required to special tool(s), and torque repeatable accuracy is high, closes compact occasion and facilitates positioning, durable and reliable, can be real
An existing power head is equipped with the advantages of multiple plug-in units use simultaneously:
Specifically, 1 upper end of ratchet carriage is equipped with gear drive 21, drive first gear is carried out by drive rod 22
211 rotations, under the affecting of drawstring 213, second gear 212 is also with rotation, at this point, first gear -211 and second gear
212 are meshed, and complete ratchet carriage 1 and are connected with gear drive 21.
Specifically, main function is to the effect exported to hydraulic stem 222 by for loose slot 223,
When the hydraulic stem 222 of loose slot 223 together constitutes kinematic pair there are also running part, however bearing 221 is from it to driving section
This distance at part center is mainly exactly the effect for gear drive 21 being amplified the arm of force.
Specifically, quick coupling 24 is sleeved on 23 top of driving assembly, interior hexagon through-hole is provided with by ratchet carriage 1,
One end of torque transfer shaft 26 is sleeved in reaction torque support plate 28, and with driving assembly 23 in connection shape, the first pin shaft 281 with
The middle part of second pin shaft 283 is equipped with follower lever 282, under the anti-twisted mating connection of driving assembly 23, is made ratchet carriage 1 corresponding respectively
Rectangular teeth on workpiece utilizes self structure condition, completes the installation of nut and the preload of bolt.
In some embodiments, loose slot 223 is contributed, and the result obtained is exactly the theoretical output of gear drive 21
Data, but because there is the presence of frictional resistance, for the output of actual gear drive 21 the result is that when being less than theoretical
The output torque of time.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this
The range of invention is indicated by the appended claims rather than the foregoing description, it is intended that the equivalent requirements of the claims will be fallen in
All changes in meaning and scope are included within the present invention.It should not treat any reference in the claims as limitation institute
The claim being related to.
Claims (8)
1. a kind of electric power overhaul tool for small space, structure include: ratchet carriage (1), hydraulic wrench (2),
Type plate (3), reaction torque mandrel (4), torsion head (5), hydraulic power unit (6), hook (7), it is characterised in that:
Circular configuration is in ratchet carriage (1) section and level is through hydraulic wrench (2) inside and using mechanical
Connection, the hydraulic wrench (2) are integrated with ratchet carriage (1), and type plate (3) level is tightly attached to hydraulic
Torque spanner (2) side and be pasted together, the reaction torque mandrel (4) set altogether there are two and horizontal insertion torsion head (5)
Internal left end and using matching, the torsion head (5) be fixed on vertically hydraulic wrench (2) upper end and with it is hydraulic dynamic
Power unit (6) using interference fit, the hydraulic power unit (6) be installed vertically on hook (7) upper end and with hydraulic torsion
Spanner (2) using be flexibly connected, the hook (7) be horizontally fixed on ratchet carriage (1) right end and with hydraulic wrench (2)
It adopts and is secured with nuts；
The hydraulic wrench (2) is by gear drive (21), drive rod (22), driving assembly (23), quick coupling
(24), limit plate (25), torque transfer shaft (26), torsional pin (27), reaction torque support plate (28) composition；
The gear drive (21) is vertically arranged to ratchet carriage (1) upper end and is connected with drive rod (22) using mechanical
It connects, the drive rod (22) is horizontal to be embedded in reaction torque support plate (28) internal left end and use matching with torque transfer shaft (26)
It closes, the driving component (23) is installed vertically on quick coupling (24) lower end and is matched with reaction torque support plate (28) using interference
It closes, the quick coupling (24) is embedded in hydraulic power unit (6) inner upper end and with driving assembly (23) using gap vertically
Cooperation, limit plate (25) rectangular cross-section structure and is uniformly tightly attached to torque transfer shaft (26) upper and lower ends and is welded on
Together, the torque transfer shaft (26) is conllinear with drive rod (22) axle center, and the torsional pin (27) is equipped with multiple and uniformly solid altogether
Be scheduled on hook (7) left and right ends, reaction torque support plate (28) horizontal nest in torque transfer shaft (26) outer ring and with drive
Dynamic component (23) use and match.
2. a kind of electric power overhaul tool for small space according to claim 1, it is characterised in that: the gear passes
Motivation structure (21) is made of first gear (211), second gear (212), drawstring (213), and the first gear (211) is vertically solid
It being scheduled on ratchet carriage (1) upper end and uses mechanical connection, the first gear (211) is conllinear with second gear (212) axle center,
The second gear (212) is vertically arranged to drive rod (22) lower end and uses with first gear (211) be meshed, the drawing
Rope (213) horizontal nest is flexibly connected in first gear (211) with second gear (212) outer ring and use.
3. a kind of electric power overhaul tool for small space according to claim 1 or 2, it is characterised in that: the drive
Lever (22) is made of bearing (221), hydraulic stem (222), loose slot (223), and the second gear (212) is fixed on axis vertically
It holds (221) lower end and uses and match, hydraulic stem (222) horizontal nest is in bearing (221) outer ring and and loose slot
(223) using being flexibly connected, horizontal insertion reaction torque support plate (28) of the loose slot (223) is internal and welds together.
4. a kind of electric power overhaul tool for small space according to claim 1, it is characterised in that: the driving group
Part (23) is made of fairing (231), connector (232), coil lead (233), and the fairing (231) is horizontally installed to
Connector (232) right end and use interference fit, the connector (232) are vertically fixed on quick coupling (24) lower end and are one
Body structure, insertion reaction torque support plate (28) is internal vertically and is gap-matched for the coil lead (233).
5. a kind of electric power overhaul tool for small space according to claim 1, it is characterised in that: the fast quick access
Head (24) be made of connecting plate (241), substrate (242), mandrel (243), connecting plate (241) rectangular cross-section structure and erect
Directly it is tightly attached to substrate (242) bottom end and welds together, the substrate (242) is conllinear with mandrel (243) axle center, the mandrel
(243) it is installed vertically on driving assembly (23) upper end and is used with substrate (242) and matched.
6. a kind of electric power overhaul tool for small space according to claim 1, it is characterised in that: the torque passes
It passs axis (26) to be made of seal washer (261), the first valve rod (262), the second valve rod (263), the seal washer (261) is horizontal
It is fixed on loose slot (223) right end and is gap-matched, first valve rod (262) is integrated with the second valve rod (263)
Change structure, second valve rod (263) is vertically arranged to the first valve rod (262) upper end and used with seal washer (261)
It is full of cooperation.
7. a kind of electric power overhaul tool for small space according to claim 1 or 4, it is characterised in that: described anti-
Torque support plate (28) is made of the first pin shaft (281), follower lever (282), the second pin shaft (283), first pin shaft (281)
Conllinear with the second pin shaft (283) axle center, the coil lead (233) is vertically embedded into the internal left end of follower lever (282) and uses
Mechanical connection, second pin shaft (283) are fixed on the first pin shaft (281) lower end and vertically between follower lever (282) uses
Gap cooperation.
8. a kind of electric power overhaul tool for small space according to claim 1, it is characterised in that: described hydraulic dynamic
Power unit (6) is vertically arranged to torsion head (5) lower end and with hydraulic wrench (2) using mechanical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109142.6A CN108942797A (en) | 2018-09-21 | 2018-09-21 | A kind of electric power overhaul tool for small space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109142.6A CN108942797A (en) | 2018-09-21 | 2018-09-21 | A kind of electric power overhaul tool for small space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108942797A true CN108942797A (en) | 2018-12-07 |
Family
ID=64471636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811109142.6A Pending CN108942797A (en) | 2018-09-21 | 2018-09-21 | A kind of electric power overhaul tool for small space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108942797A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504651A (en) * | 2019-07-04 | 2019-11-26 | 吴飞忠 | A kind of pipeline electric wire easy to maintain |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236692A (en) * | 1998-04-28 | 1999-12-01 | 约翰·K·琼克斯 | Fluid-operated tool |
| RU2177401C2 (en) * | 2000-01-26 | 2001-12-27 | Закрытое Акционерное Общество "Энерпред" | Hydraulic screwdriver |
| US7146880B1 (en) * | 2004-12-06 | 2006-12-12 | Francis Services, Inc. | Torque wrench system |
| CN206484473U (en) * | 2017-01-17 | 2017-09-12 | 海恩拓克工业装备（武汉）有限公司 | A kind of multifunctional hydraulic spanners |
| CN207326843U (en) * | 2017-10-16 | 2018-05-08 | 杭州福朗机电科技有限公司 | A kind of reaction torque self-supporting hydraulic wrench |
-
2018
- 2018-09-21 CN CN201811109142.6A patent/CN108942797A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236692A (en) * | 1998-04-28 | 1999-12-01 | 约翰·K·琼克斯 | Fluid-operated tool |
| RU2177401C2 (en) * | 2000-01-26 | 2001-12-27 | Закрытое Акционерное Общество "Энерпред" | Hydraulic screwdriver |
| US7146880B1 (en) * | 2004-12-06 | 2006-12-12 | Francis Services, Inc. | Torque wrench system |
| CN206484473U (en) * | 2017-01-17 | 2017-09-12 | 海恩拓克工业装备（武汉）有限公司 | A kind of multifunctional hydraulic spanners |
| CN207326843U (en) * | 2017-10-16 | 2018-05-08 | 杭州福朗机电科技有限公司 | A kind of reaction torque self-supporting hydraulic wrench |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504651A (en) * | 2019-07-04 | 2019-11-26 | 吴飞忠 | A kind of pipeline electric wire easy to maintain |
| CN110504651B (en) * | 2019-07-04 | 2020-10-16 | 诸暨市秀珠建材有限公司 | Easily maintain pipeline electric wire |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181207 |
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