CN105065370A - Hydraulic jacking device of pasting machine - Google Patents

Hydraulic jacking device of pasting machine Download PDF

Info

Publication number
CN105065370A
CN105065370A CN201510470140.XA CN201510470140A CN105065370A CN 105065370 A CN105065370 A CN 105065370A CN 201510470140 A CN201510470140 A CN 201510470140A CN 105065370 A CN105065370 A CN 105065370A
Authority
CN
China
Prior art keywords
piston rod
hydraulic
supporting base
oilhole
hydraulic cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510470140.XA
Other languages
Chinese (zh)
Other versions
CN105065370B (en
Inventor
张莹
孟宪举
张明勤
王贵
张传伟
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.)
Shandong Jianzhu University
Original Assignee
Shandong Jianzhu University
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 Shandong Jianzhu University filed Critical Shandong Jianzhu University
Priority to CN201510470140.XA priority Critical patent/CN105065370B/en
Publication of CN105065370A publication Critical patent/CN105065370A/en
Application granted granted Critical
Publication of CN105065370B publication Critical patent/CN105065370B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1428Cylinders
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00Implements for finishing work on buildings
    • E04F21/02Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06Implements for applying plaster, insulating material, or the like
    • E04F21/08Mechanical implements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Abstract

The invention discloses a hydraulic jacking device of a pasting machine. The hydraulic jacking device comprises a hydraulic driving part installed on a pasting machine bottom frame and a hydraulic executing part connected with a lower vertical rod and a supporting base of a pasting machine support. The pasting machine bottom frame is located on a transverse guide rail. A hydraulic cylinder in the hydraulic executing part is in a double-piston-rod type. An oil hole is formed in the portion close to the middle position of the hydraulic cylinder. An upper piston rod located on the upper side of the oil hole is fixedly connected with the lower vertical rod through a flange at the top end of the upper piston rod. A lower piston rod located on the lower side of the oil hole is connected with the upper end of the supporting base through a spherical jacking head at the bottom end of the lower piston rod by means of a spherical pair. The portion close to the lower side of the hydraulic cylinder is connected with the bottom frame through a pin shaft. The lower piston rod is sleeved with a compressed spring. The spring is located between a lower piston and a lower end cover of the hydraulic cylinder. By means of the hydraulic jacking device of the pasting machine, it is guaranteed that the pasting machine support is reliably supported, and the hydraulic jacking device is simple in structure, wider in application range and convenient to manufacture.

Description

Mechanical float hydraulic pressure tight-push unit
Technical field
The present invention belongs to building machinery technical field, particularly a kind of mechanical float hydraulic pressure tight-push unit.
Background technique
The application of mechanical float in existing building engineering significantly shortens construction period, improves efficiency of construction, alleviates labor intensity, and the perpendicularity of metope grieshoch and flatness less than human error.The mode of plastered work from bottom to top that existing mechanical float is generally taked, storage ash hopper, plastering plate and transmission device is up along mechanical float vertical rod support, and hopper is angle of inclination, and the lower edge of plastering plate constantly extrudes mortar and forms grieshoch.Mechanical float in the course of the work rocking of support easily causes the metope after plastering to be uneven, and have a strong impact on perpendicularity and the flatness of metope grieshoch, therefore mechanical float complete machine stability also should obtain pay abundant attention.The hydraulic pressure tight-push unit that existing mechanical float adopts usually is single-piston rod formula, namely the upper end of piston rod is connected with plastering machine support and moves up to hold out against body of wall top for promoting support, the piston sleeve lower end coordinated with piston rod is connected with supporting base and moves downwardly to hold out against ground for promoting supporting base, the support of such mechanical float reliably supports and between ground and body of wall top, hopper, plastering plate and transmission device can along support easy motions.The impact of the supporting sleeve length that the piston sleeve downward movement distance of this single-piston rod formula hydraulic pressure tight-push unit is coordinated with it and restriction, when using this device, mounting point must accurately suitably, and this makes this device Applicable scope less.In addition this piston rod is integral vertical type major axis, because rigidity is poor, adds processed complex degree; The piston sleeve coordinated with piston rod is also longer, and be the coaxality of both guarantees, processing and assembling is comparatively difficult.
Summary of the invention
For above-mentioned defect, the technical problem that the present invention solves is, provides a kind of mechanical float hydraulic pressure tight-push unit, and while ensureing plastering machine support secure support, piston rod Bottom Runby affects by hydraulic cylinder piston design runlength, and structure is simple, and Applicable scope is wider.
Technical problem solved by the invention realizes by the following technical solutions: mechanical float hydraulic pressure tight-push unit comprises the hydraulic driving part be installed on mechanical float underframe, the hydraulic pressure power unit be connected with lower vertical rod and the supporting base of plastering machine support, described mechanical float underframe is positioned on cross slide way, oil hydraulic cylinder in described hydraulic pressure power unit is double-piston rod-type, oilhole is provided with near oil hydraulic cylinder middle position, the upper piston rod be positioned on the upside of oilhole is fixedly connected with described lower vertical rod by its top flange plate, the lower piston rod be positioned on the downside of oilhole is connected with spherical pair with described supporting base upper end by its bottom Spherical plug, oil hydraulic cylinder is connected with described underframe by bearing pin near lower position place, sheathed Compress Spring on described lower piston rod, this spring is between lower piston and oil hydraulic cylinder lower end cap, hydraulic oil injects from oil hydraulic cylinder oilhole by described hydraulic driving part, lower piston rod overcomes Compress Spring active force promotion supporting base and moves downward, supporting base bottom compresses cross slide way, makes cross slide way compress ground, and under upper piston rod promotes, vertical rod moves upward and makes support hold out against body of wall top, described support promotes upper piston rod backhaul under its Action of Gravity Field makes section hydraulic oil flow out from oilhole, and support departs from body of wall top, and Compress Spring promotes lower piston backhaul makes section hydraulic oil flow out from oilhole, and supporting base departs from cross slide way.
Mechanical float hydraulic pressure tight-push unit of the present invention, be integrated type by hydraulic cylinder body, piston rod is split type two-part up and down, when hydraulic cylinder works, lower piston rod is only subject to the impact of himself stroke, and reduce the mounting point accuracy requirement of oil hydraulic cylinder and underframe, Applicable scope is comparatively extensive, and this structure eliminates coordinating of lower piston rod and supporting sleeve, structure is more simple; In addition, piston rod is vertical minor axis, and rigidity increases, and is convenient to processing; The coaxality that split type upper and lower piston rod coordinates with cylinder body requires to decrease compared to existing piston sleeve and piston rod, and this reduces requirement on machining accuracy, assembling difficulty is also reduced.When hydraulic driving part is by continuous for hydraulic oil injection liquid cylinder pressure, be affected by gravity, this hydraulic oil first promotes the continuous Compress Spring of lower piston rod, and lower piston rod bottom drives supporting base to compress cross slide way simultaneously; Then hydraulic oil promotes upper piston rod top drive support and holds out against body of wall top.Therefore, adopt mechanical float hydraulic pressure tight-push unit of the present invention, not only ensure that plastering machine support obtains secure support, and structure is simple, Applicable scope is comparatively wide, is convenient to manufacturing.
As a modification of the present invention, described supporting base bottom has 90 ° of grooves, and this groove can coordinate with cross slide way and clamps.
Above-mentioned setting, supporting base is coordinated with cross slide way and clamps, plastering machine support obtains supporting more reliably, can ensure the flatness that mechanical float is repeatedly plastered to isoplanar metope simultaneously.
Accompanying drawing explanation
Below in conjunction with embodiment's accompanying drawing, the present invention is elaborated.
Fig. 1 is existing mechanical float hydraulic pressure tight-push unit partial structurtes schematic diagram.
Fig. 2 is mechanical float hydraulic pressure tight-push unit of the present invention key plan in mechanical float.
Fig. 3 is that mechanical float hydraulic pressure of the present invention holds out against apparatus structure schematic diagram.
Fig. 4 is mechanical float hydraulic pressure tight-push unit hydraulic pressure power unit schematic diagram of the present invention.
In Fig. 1,1. vertical rod 2. upper ends are overlapped 3. piston sleeve 4. piston rod 5. lower ends and are overlapped 6. bearing pin 7. oilhole 8. supporting base 9. Compress Spring 10. supporting sleeves.
1. plastering plate 2. hopper 3. transmission device 4. support 5. hydraulic pressure tight-push unit 6. cross slide waies in Fig. 2.
In Fig. 3,7. upper pright stanchion 8. vertical rods save 9. times vertical rod 10. hydraulic pressure power unit 11. hydraulic driving part 12. underframe.
13. flange plate 14. upper end cap 15. upper piston rod 16. upper piston 17. oilhole 18. rodless cavity 19. bearing pin 20. lower end cap 21. supporting base 22. Spherical plug 23. lower piston rod 24. Compress Spring 25. lower piston 26. cylinder bodies in Fig. 4.
Embodiment
In order to understand the present invention better relative to the improvement done by prior art, before the specific embodiment of the present invention is described in detail, first the prior art mechanical float hydraulic pressure tight-push unit that background technique part is mentioned is illustrated by reference to the accompanying drawings.Fig. 1 shows hydraulic pressure tight-push unit local concrete structure in prior art, piston sleeve 3 is provided with outside piston rod 4, piston rod 4 upper end is connected with mechanical float vertical rod 1, piston sleeve 3 lower end extends to supporting sleeve 10 and passes its bottom part, and piston sleeve 3 lower end closed, arrange the Compress Spring 9 being placed on piston rod 4 between lower end cover 5 and supporting sleeve 10, the Spherical plug of piston sleeve 3 lower end forms spherical pair with supporting base 8 and is connected, and supporting sleeve 10 is fixedly connected with mechanical float underframe by bearing pin 6.Hydraulic oil enters the enclosed space of piston rod 4 lower end and piston sleeve 3 lower end from oilhole 7, by the gravity effect of vertical rod 1 and supporting base 8 and supporting sleeve 10, piston sleeve 3 overcomes Compress Spring 9 active force and supporting base 8 moves downwardly to compression ground simultaneously, hydraulic oil continue increase, piston rod 4 will move upward its jack-up vertical rod 1 to vertical rod 1 top, upper end compress metope top.During hydraulic oil unloading, exert pressure in vertical rod 1 pair of piston rod 4 upper end, piston rod 4 moves downward, and section hydraulic oil refluxes from oilhole 7, and vertical rod 1 top and metope top depart from; Under Compress Spring 9 acts on, supporting base 8 moves upward, and raffinate force feed refluxes from oilhole 7, and supporting base 8 is away from ground.
For above-mentioned prior art mechanical float hydraulic pressure tight-push unit, the impact of supporting sleeve 10 length that piston sleeve 3 downward movement distance is coordinated with it and restriction, when using this device, mounting point must accurately suitably, and this makes this device Applicable scope less.Piston rod 4 is integral vertical type major axis, because rigidity is poor, adds processed complex degree; The piston sleeve 3 coordinated with piston rod 4 is also longer, is the coaxality of both guarantees, and processing and assembling is got up also comparatively difficult.
Embodiments of the present invention are exactly for the improvement done by the hydraulic pressure tight-push unit manufacturing problem of existing mechanical float.Detailed description is made to this embodiment below.
As Fig. 2, Fig. 3, shown in Fig. 4, mechanical float hydraulic pressure tight-push unit 5 comprises the hydraulic driving part 11 be installed on mechanical float underframe 12, the hydraulic pressure power unit 10 be connected with plastering machine support 4 times vertical rods 9 and supporting base 21, mechanical float underframe 12 is positioned on cross slide way 6, oil hydraulic cylinder in hydraulic pressure power unit 10 is double-piston rod-type, oilhole 17 is provided with near hydraulic cylinder body 26 middle position, the upper piston rod 15 be positioned on the upside of oilhole 17 is fixedly connected with lower vertical rod 9 by its top flange plate 13, the lower piston rod 23 be positioned on the downside of oilhole 17 is connected with spherical pair with supporting base 21 upper end by its bottom Spherical plug 22, hydraulic cylinder body 26 is connected with underframe 12 by bearing pin 19 near lower position place, sheathed Compress Spring 24 on lower piston rod 23, this spring 24 is between lower piston 25 and oil hydraulic cylinder lower end cap 20, upper end cap 14 and lower end cap 20 seal the upper and lower end of cylinder body 26 respectively.Plastering machine support 4 by upper pright stanchion 7, vertical rod save 8 and lower vertical rod 9 form, plastering plate 1, hopper 2 and transmission device 3 to have moved up and down action of plastering along support 4.
For convenience of mechanical float adjustment, ensure the flatness of the metope grieshoch in same level, underframe is provided with guide wheel (not shown) 12 times, and guide wheel coordinates with cross slide way 6, can after having plastered for the first time, and fast moving is to next position of plastering.Therefore, open 90 ° of grooves in supporting base 21 bottom, this groove can coordinate with cross slide way and clamps.Mechanical float is adjusted to correct position, before plastering, plastering plate 1, hopper 2 and transmission device 3 are positioned on underframe 12, jam on the riding boogie board of hydraulic driving part 11 continuously, hydraulic oil is injected from the oilhole 17 cylinder body 26, by support 4 and hydraulic pressure tight-push unit 5 gravity effect, hydraulic oil enters rodless cavity 18, and first lower piston 25 is exerted pressure, lower piston rod 23 overcomes Compress Spring 24 active force promotion supporting base 21 and holds out against ground, Spherical plug 22 can adjust the surface of contact with supporting base 21 according to cross slide way 6 and ground contact condition, ensure supporting base 21 and cross slide way 6 close contact, ensure the coaxality of lower piston rod 23 and cylinder body 26 simultaneously, after supporting base 21 holds out against cross slide way 6, cross slide way 6 and ground close contact, the hydraulic oil now entering rodless cavity 18 just acts on upper piston 16, and the flange plate 13 on upper piston rod 15 top promotes lower vertical rod 9 makes the upper pright stanchion 7 of support 4 hold out against body of wall top.Support 4 reliably holds out against ground and body of wall top, and start transmission device 3, this device 3 drives plastering plate 1 and hopper 2 to move upward along support 4, completes wall plastering.
After having plastered, plastering plate 1 and hopper 2 move downwardly on underframe 12 with transmission device 3, open the oil drain valve on hydraulic driving part 11, by support 4 Action of Gravity Field, lower vertical rod 9 promotes upper piston rod 15 backhaul makes rodless cavity 18 inside point hydraulic oil flow out to hydraulic driving part 11 from oilhole 17, and upper pright stanchion 7 is away from body of wall top; Compress Spring 24 promotes lower piston 25 backhaul makes rodless cavity 18 inside point hydraulic oil flow out from oilhole 17, and supporting base 21 and cross slide way 6 depart from, and cross slide way 6 pairs of ground pressures reduce.Now can adjust mechanical float transversely guide rail 6 move to subsequent work position, repeat aforesaid operations.
Mechanical float hydraulic pressure tight-push unit 5 hydraulic cylinder body 26 of the present invention is integrated type, piston rod is split type two-part up and down, when hydraulic cylinder works, lower piston rod 23 is only subject to the impact of himself stroke, the mounting point accuracy requirement of cylinder body 26 and underframe 12 is reduced, Applicable scope is comparatively extensive, and this structure eliminates coordinating of lower piston rod and supporting sleeve, and structure is more simple; In addition, piston rod is vertical minor axis, and rigidity increases, and is convenient to processing; The coaxality that split type upper and lower piston rod 15,23 coordinates with cylinder body 26 requires to decrease compared to existing piston sleeve (in Fig. 1 3) and piston rod (in Fig. 1 4), and this reduces requirement on machining accuracy, assembling difficulty is also reduced.Supporting base 21 coordinates with cross slide way 6, cross slide way 6 and contact area of ground comparatively in prior art supporting base (in Fig. 1 8) increase to some extent with the area of contact on ground, make fixing more firm of mechanical float.Therefore, adopt mechanical float hydraulic pressure tight-push unit of the present invention, not only ensure that plastering machine support obtains secure support, and structure is simple, Applicable scope is comparatively wide, is convenient to manufacturing.
Above embodiment is not limited to this case and provides diagram.Those of ordinary skill in the art should be appreciated that and can modify to technological scheme of the present invention or equivalent replacement, and does not depart from aim and the scope of technical solution of the present invention, and it all should be encompassed in the middle of right of the present invention.

Claims (2)

1. a mechanical float hydraulic pressure tight-push unit, comprise the hydraulic driving part (11) be installed on mechanical float underframe (12), the hydraulic pressure power unit (10) be connected with lower vertical rod (9) and the supporting base (21) of plastering machine support (4), described mechanical float underframe (12) is positioned on cross slide way (6), it is characterized in that: the oil hydraulic cylinder in described hydraulic pressure power unit (10) is double-piston rod-type, oilhole (17) is provided with near oil hydraulic cylinder middle position, the upper piston rod (15) being positioned at oilhole (17) upside is fixedly connected with described lower vertical rod (9) by its top flange plate (13), the lower piston rod (23) being positioned at oilhole (17) downside is connected with spherical pair with described supporting base (21) upper end by its bottom Spherical plug (22), oil hydraulic cylinder is connected with described underframe (12) by bearing pin (19) near lower position place, the upper sheathed Compress Spring (24) of described lower piston rod (23), this spring (24) is positioned between lower piston (25) and oil hydraulic cylinder lower end cap (20), hydraulic oil injects from oil hydraulic cylinder oilhole (17) by described hydraulic driving part (11), lower piston rod (23) overcomes Compress Spring (24) active force promotion supporting base (21) and moves downward, supporting base (21) bottom compresses cross slide way (6), make cross slide way (6) compress ground, under upper piston rod (15) promotes, vertical rod (9) moves upward and makes support (4) hold out against body of wall top, described support (4) promotes upper piston rod (15) backhaul under its Action of Gravity Field makes section hydraulic oil flow out from oilhole (17), support (4) departs from body of wall top, Compress Spring (24) promotes lower piston (25) backhaul makes section hydraulic oil flow out from oilhole (17), and supporting base (21) departs from cross slide way (6).
2. mechanical float hydraulic pressure tight-push unit according to claim 1, is characterized in that: described supporting base (21) bottom has 90 ° of grooves, and this groove can coordinate with cross slide way (6) and clamps.
CN201510470140.XA 2015-08-04 2015-08-04 Mechanical float hydraulic pressure holding device Active CN105065370B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510470140.XA CN105065370B (en) 2015-08-04 2015-08-04 Mechanical float hydraulic pressure holding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510470140.XA CN105065370B (en) 2015-08-04 2015-08-04 Mechanical float hydraulic pressure holding device

Publications (2)

Publication Number Publication Date
CN105065370A true CN105065370A (en) 2015-11-18
CN105065370B CN105065370B (en) 2017-03-29

Family

ID=54494841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510470140.XA Active CN105065370B (en) 2015-08-04 2015-08-04 Mechanical float hydraulic pressure holding device

Country Status (1)

Country Link
CN (1) CN105065370B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282174B (en) * 1993-08-16 1995-11-15 Tah Hee Tan Plastering machine
CN201297025Y (en) * 2008-11-17 2009-08-26 淮滨县新宇机械加工有限公司 Hydraulic vibrating type wall plastering machine
CN202882368U (en) * 2012-10-17 2013-04-17 王建虎 Novel automatic wall whitewashing machine
CN203160654U (en) * 2013-03-30 2013-08-28 刘建军 Automatic wall brushing machine
CN203188581U (en) * 2013-04-08 2013-09-11 任子文 Novel pasting machine
CN103758817A (en) * 2014-02-17 2014-04-30 王建虎 Supporting cylinder and spackling machine
CN203640243U (en) * 2013-12-16 2014-06-11 邱忠 Automatic wall whitewashing and flattening machine
CN203756633U (en) * 2014-02-17 2014-08-06 王建虎 Supporting cylinder and wall plastering machine
CN203755617U (en) * 2014-02-17 2014-08-06 王建虎 Wall plastering machine easy to travel on rails

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282174B (en) * 1993-08-16 1995-11-15 Tah Hee Tan Plastering machine
CN201297025Y (en) * 2008-11-17 2009-08-26 淮滨县新宇机械加工有限公司 Hydraulic vibrating type wall plastering machine
CN202882368U (en) * 2012-10-17 2013-04-17 王建虎 Novel automatic wall whitewashing machine
CN203160654U (en) * 2013-03-30 2013-08-28 刘建军 Automatic wall brushing machine
CN203188581U (en) * 2013-04-08 2013-09-11 任子文 Novel pasting machine
CN203640243U (en) * 2013-12-16 2014-06-11 邱忠 Automatic wall whitewashing and flattening machine
CN103758817A (en) * 2014-02-17 2014-04-30 王建虎 Supporting cylinder and spackling machine
CN203756633U (en) * 2014-02-17 2014-08-06 王建虎 Supporting cylinder and wall plastering machine
CN203755617U (en) * 2014-02-17 2014-08-06 王建虎 Wall plastering machine easy to travel on rails

Also Published As

Publication number Publication date
CN105065370B (en) 2017-03-29

Similar Documents

Publication Publication Date Title
JP5126695B2 (en) Punching mold making equipment
CN204221936U (en) Toilet seat automatic grouting machine
CN105751559B (en) A kind of pressing module
CN209602019U (en) A kind of lifting adjustment device that can freely adjust
CN210996100U (en) Elevator transmission part mould
CN106553066A (en) A kind of Rapid chamfering device
CN105065370A (en) Hydraulic jacking device of pasting machine
CN205714227U (en) A kind of electrodynamic type segment overturning transport vehicle
CN205631435U (en) Pressing die set
CN109958132A (en) A kind of construction concrete grouting equipment and its operating method
CN203752262U (en) Wood plate drilling machine convenient to compress and hold material
CN203266376U (en) Engine connecting rod small end honing fixture
CN204294528U (en) For the cleaning device of clear cylinder blank
CN204449863U (en) For the tight winding device of Complicated Automobile accessory
CN204252195U (en) A kind of fluid pressure type telescopic support legs for dredge boat
CN208929981U (en) A kind of machine for grinding steel ball tool formula automatically correcting device
CN208704677U (en) A kind of building foundation flatness detecting device
CN110524712A (en) A kind of integrated hydraulic formula template applied to prefabricated box -beam
CN103334708B (en) Injection head support frame for continuous tubing operation machine
CN206982219U (en) The drilling tool of flange
CN206512707U (en) Jet grouting pile driving machine
CN203729954U (en) Deviation-rectifying and adjusting device for oil pumping machine
CN205202467U (en) Device of moisturizing
CN204185204U (en) A kind of position regulator of trestle trolley
CN212477445U (en) Can realize bridge steel form for concrete of quick installation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant