CN201416130Y - Double-block type vibration compensator for concrete surrounding sleeper - Google Patents

Double-block type vibration compensator for concrete surrounding sleeper Download PDF

Info

Publication number
CN201416130Y
CN201416130Y CN2009201032409U CN200920103240U CN201416130Y CN 201416130 Y CN201416130 Y CN 201416130Y CN 2009201032409 U CN2009201032409 U CN 2009201032409U CN 200920103240 U CN200920103240 U CN 200920103240U CN 201416130 Y CN201416130 Y CN 201416130Y
Authority
CN
China
Prior art keywords
fixed
linking member
double
connecting frame
lifting
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.)
Expired - Lifetime
Application number
CN2009201032409U
Other languages
Chinese (zh)
Inventor
卢朋
王新民
曹宁宇
邢培刚
王庆省
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.)
Second Engineering Co Ltd of 17th Bureau of China's Railroad Group
China Railway 17th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 17th Bureau Group Co Ltd
Original Assignee
Second Engineering Co Ltd of 17th Bureau of China's Railroad Group
China Railway 17th Bureau Group 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 Second Engineering Co Ltd of 17th Bureau of China's Railroad Group, China Railway 17th Bureau Group Co Ltd filed Critical Second Engineering Co Ltd of 17th Bureau of China's Railroad Group
Priority to CN2009201032409U priority Critical patent/CN201416130Y/en
Application granted granted Critical
Publication of CN201416130Y publication Critical patent/CN201416130Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

The utility model provides a double-block type vibration compensator for concrete surrounding a sleeper, which fills the market gap in the production of double-block type vibration compensating devices for concrete surrounding a sleeper, wherein, a lifting hydraulic cylinder and guide sleeves are fixed on the base, a guide pole is sleeved inside the guide sleeves, a connecting frame is fixed at the upper ends of the lifting hydraulic cylinder and the guide pole, a tooth rack is arranged on the surface of the guide pole, a gear shaft is fixed between the guide sleeves, connecting plates are fixed on the two sides of the connecting frame, rectangular holes are formed on the surface of the connecting frame, lifting connection rods are arranged inside the rectangular hole, hinge holes and hinge grooves are formed at the upper and the lower parts of the connecting plates and the lifting connection rods, hinge rods are arranged in a crossed manner between the hinge holes and the hinge grooves, an open-close hydraulic cylinder is fixed between the lifting connection rods, a U-shaped vibrating foot board is fixed at the bottom ends of the lifting connection rods, a connecting rod is hingedwith the foot board, a hollow screw is fixed at the bottom part thereof, the other end of the connecting rod is hinged with a bracket, and a variable frequency vibrator is fixed on the bracket. The utility model improves the density and impermeability of concrete, and is handy to operate.

Description

The double-block type sleeper circumferential concrete vibration supplementing device
Technical field
The utility model relates to the auxiliary mould of double-blocked rail without ballast construction, particularly is used for device that double-block type sleeper circumferential railway roadbed board concrete is vibrated, is specially a kind of double-block type sleeper circumferential concrete vibration supplementing device.
Background technology
Wuhan-Guangzhou passenger-dedicated line is the high-speed railway of China article one design speed 350Km/h, and German Rheda2000 double-blocked rail without ballast technology is adopted in design.Core in this technology is: utilize the instrument rail to fix prefabricated double-block type sleeper; Utilize three-dimensional control survey technology that the instrument rail is accurately located; The cast-in-place railway roadbed board concrete of formwork erection is permanently affixed at double-block type sleeper in the bed board; The at a high speed long rail that changes the outfit forms gapless track.
Double-block type sleeper adopts prefabricated, the steam curing technology of punching block, and uses release agent, makes that the double-block type sleeper surface is more smooth, and influence is bonding with the railway roadbed plate cast-in-place concrete, when therefore constructing double-block type sleeper circumferential is fully combined with cast-in-situ concrete; Owing to be furnished with a large amount of structure reinforcing bars in the road bed board, influence the effect of vibrating of poker vibrator, cause the concrete vibrating of sleeper circumferential insufficient, fine crack can appear in cast-in-situ concrete and double-block type sleeper binding site; Concrete itself is difficult for perfusion and fills up bottom the sleeper and under concrete deadweight effect easily to sink, and causes the sleeper bottom easily to form air bag.When running into rainy weather, rainwater can ooze by the fine crack of sleeper circumferential and amass in the sleeper pillow air bag at the end, when bullet train passes through this section of railway track, rainwater in air bag crackle high speed from sleeper circumferential under the effect of load sprays, the high speed water generation cavitation effect that fails to be convened for lack of a quorum causes concrete cracks to strengthen.Under the effect of long-term cavitation erosion and high-velocity flow, getting in touch progressively between sleeper and the cast-in-situ concrete weakens, and the ride comfort of track, comfortableness, safety reduce, and obviously shorten the application life of road bed board.In the construction for fear of the problems referred to above taked to shift to an earlier date moistening sleeper, strengthen vibrating, measure such as press polish repeatedly, but produce little effect, still can't tackle the problem at its root.
Summary of the invention
The utility model does not have a kind of double-block type sleeper circumferential concrete vibration supplementing device at present in order to solve, and still there is the problem of crackle and air bag in the vibrate concrete of back sleeper circumferential of existing poker vibrator, and a kind of double-block type sleeper circumferential concrete vibration supplementing device is provided.
The utility model is to adopt following technical scheme to realize: the double-block type sleeper circumferential concrete vibration supplementing device, comprise the base that has road wheel, the base center fixed has lifting hydraulic cylinder and lays respectively at the guide pin bushing of the lifting hydraulic cylinder left and right sides (travel direction of road wheel is a fore-and-aft direction), be with guide pillar in the guide pin bushing, lifting hydraulic cylinder and guide pillar upper end horizontal fixed have connecting frame, the guide pillar face of cylinder is provided with longitudinal rack, be fixed with by a rotating shaft between two guide pin bushings and be positioned at gear shaft that the isometrical gear in rotating shaft two ends forms and the gear at gear shaft two ends respectively with corresponding guide pillar on the tooth bar engagement, the left and right sides of connecting frame be fixed with the vertical junction plate corresponding with position, the road wheel left and right sides and on the connecting frame upper surface of each junction plate left and right sides, have communicate with its soffit and with respect to the rectangular opening of junction plate symmetry, be provided with lifting linking member in each rectangular opening, be provided with hinge hole and hinged groove respectively on the sustained height of each junction plate and the upper and lower of the lifting linking member that is positioned at its both sides, be provided with two hinge bars between the hinged groove of the hinge hole on each junction plate top and its lifting linking member bottom, both sides and between the hinge hole on the hinged groove of each junction plate bottom and its lifting linking member top, both sides, be provided with two hinge bars, these four hinge bars intersect part and are articulated structure, all be fixed with the folding hydraulic cylinder between the lifting linking member of each junction plate both sides, it is relative that each lifting linking member bottom all is fixed with the vibrate sole opening that vibrates of lifting linking member bottom of sole and each junction plate both sides of " U " shape, the both sides of each sole that vibrates are hinged with connecting rod and are fixed with some hollow screws that are threaded with the sole that vibrates in the sole bottom of vibrating, the other end of the connecting rod on the sole that vibrates that opening is relative is hinged on the carriage, is fixed with variable frequency vibrator on the carriage.During work, at first the road wheel of double-block type sleeper circumferential concrete vibration supplementing device travels along the instrument rail, stop to move during when travelling to the sole that vibrates over against the relevant position of double-block type sleeper, at this moment thereby the folding hydraulic cylinder is stretched out the lifting linking member that promotes the junction plate both sides and is opened under the effect of hydraulic oil, promoting lifting linking member at the open hinge bar that is hinged on simultaneously between junction plate and the lifting linking member by jointed shaft moving upward in hinged groove opens synchronously, stop motion then, then lifting hydraulic cylinder shrinks under the effect of hydraulic oil, the pulling connecting frame descends, descend with the fixing lifting linking member of connecting frame with the fixing sole that vibrates of lifting linking member, in the process that descends, wherein a guide pillar descends, thereby the rotation of the gear on the rack drives gear shaft on it drives another root guide pillar and descends synchronously, the level that has guaranteed connecting frame descends, when the position that drops to a little less than the instrument flange of rail, stop to descend, the folding hydraulic cylinder shrinks under the effect of hydraulic oil, and jointed shaft is motion downwards in hinged groove, vibrate the sole synchronous to closed thereby impel the lifting linking member synchronous to drive, stop motion, lifting hydraulic cylinder is then done contractile motion stop motion during with double-block type sleeper circumferential concrete surface design height to the sole bottom of vibrating, the vibration of unlatching variable frequency vibrator, thereby the supporting plate and the sole vibration of vibrating realize fully vibrating to the concrete of sleeper circumferential, the hollow screw that drives the sole bottom of vibrating is simultaneously done low frequency vibration, air in the air bag of sleeper bottom is got rid of, guaranteed the compactness of double-block type sleeper with cast-in-situ concrete on every side, variable frequency vibrator quits work after reaching requirement, stretch out lifting hydraulic cylinder to the sole that vibrates and break away from concrete surface, the folding hydraulic cylinder is stretched out the promotion lifting linking member and is opened with its fixing sole that vibrates then, quit work, continuing to stretch out lifting hydraulic cylinder stops after the sole that vibrates is walked around the instrument rail, shrink the folding hydraulic cylinder to the sole closure of vibrating, in the process that lifting hydraulic cylinder is stretched out, all the time be accompanied by the synchronous rising of two guide pillars, the folding hydraulic cylinder stretch out and the process of shrinking in, jointed shaft is done motion up and down equally in hinged groove, thereby promote hinge bar motion promotion lifting linking member and do synchronous opening and closing campaign, the sole that then will vibrate moves to next double-block type sleeper corresponding position by road wheel to be stopped, repeat last action, finish the benefit of every double-block type sleeper circumferential concrete successively and bestir oneself already.
The junction of lifting linking member and connecting frame is equipped with beam, be with the elastic axis bearing on the rotating shaft of connection road wheel and the bearing between the base, when this structure design guarantees to vibrate the sole judder on the road wheel vibration less, can not cause skew to the instrument rail, influence its precision.
Also be fixed with column and the program control case of PLC on the base near connecting frame, be equipped with stop on the connecting frame of column and lifting linking member both sides, stop on the column is located at the corresponding position that connecting frame need pause, and the signal output part of stop links to each other with the input of the program control case of PLC.Can realize the automation of the process of vibrating like this by control to the program control case of PLC, be specially and after stop collects signal, be transferred to the program control case of PLC, then by fuel feeding and the oil-break of the hydraulic power unit on the program control case of the PLC control base to lifting hydraulic cylinder and folding hydraulic cylinder, thus the lifting of control lifting hydraulic cylinder and the opening and closing of folding hydraulic cylinder.
Be connected with frequency modulator and adjustable limit switch on the variable frequency vibrator, during work, can control the time of vibration and the frequency of variable frequency vibrator by setting frequency modulator and adjustable limit switch.
Double-block type sleeper circumferential concrete vibration supplementing device described in the utility model has been replenished does not have the international blank of the special-purpose equipment that vibrates in the double-blocked rail without ballast construction, by having lifting, " U " shape of folding function sole that vibrates replenishes the cast-in-situ concrete surface of double-block type sleeper circumferential and vibrates, thereby reach the purpose that combines effect of improving double-block type sleeper and cast-in-situ concrete on every side, eliminate sleeper bottom air bag, improve concrete compactness and impermeability, and has an automatic control lifting, functions such as folding, simultaneously can adjust vibration frequency and vibrating time according to actual needs, when ensuring the quality of products, improved operating efficiency, and be furnished with automatic control program, it is quite efficient and convenient to operate.The utility model has been applied in the construction of high-speed railway double-blocked rail without ballast at present.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 looks schematic diagram for a left side of the present utility model;
Fig. 3 is a schematic top plan view of the present utility model;
Fig. 4 is the local enlarged diagram of A among Fig. 1;
Fig. 5 is the structural representation of the utility model hollow core screw.
1-base among the figure, 2-lifting hydraulic cylinder, 3-guide pin bushing, 4-guide pillar, the 5-connecting frame, 6-gear shaft, 7-junction plate, 8-lifting linking member, the 9-sole that vibrates, the 10-connecting rod, the 11-hollow screw, 12-carriage, 13-variable frequency vibrator, the 14-column, 15-stop, 16-beam, 17-elastic axis bearing, 18-folding hydraulic cylinder, the program control case of 19-PLC.
The specific embodiment
The double-block type sleeper circumferential concrete vibration supplementing device, comprise the base 1 that has road wheel, base 1 center fixed has lifting hydraulic cylinder 2 and lays respectively at the guide pin bushing 3 of lifting hydraulic cylinder 2 left and right sides (travel direction of road wheel is a fore-and-aft direction), be with guide pillar 4 in the guide pin bushing 3, lifting hydraulic cylinder 2 and guide pillar 4 upper end horizontal fixed have connecting frame 5, guide pillar 4 faces of cylinder are provided with longitudinal rack, be fixed with by a rotating shaft between two guide pin bushings 3 and be positioned at gear shaft 6 that the isometrical gear in rotating shaft two ends forms and the gear at gear shaft 6 two ends respectively with corresponding guide pillar 4 on the tooth bar engagement, the left and right sides of connecting frame 5 be fixed with the vertical junction plate 7 corresponding with position, the road wheel left and right sides and on connecting frame 5 upper surfaces of each junction plate 7 left and right sides, have communicate with its soffit and with respect to the rectangular opening of junction plate 7 symmetries, be provided with lifting linking member 8 in each rectangular opening, be provided with hinge hole and hinged groove respectively on the sustained height of each junction plate 7 and the upper and lower of the lifting linking member 8 that is positioned at its both sides, be provided with two hinge bars between the hinged groove of the hinge hole on each junction plate 7 top and its both sides lifting linking member 8 bottoms and between the hinge hole on the hinged groove of each junction plate 7 bottom and its both sides lifting linking member 8 tops, be provided with two hinge bars, these four hinge bars intersect part and are articulated structure, all be fixed with folding hydraulic cylinder 18 between the lifting linking member 8 of each junction plate 7 both sides, it is relative that each lifting linking member 8 bottom all is fixed with vibrate sole 9 openings that vibrate of lifting linking member 8 bottoms of sole 9 and each junction plate 7 both sides of " U " shape, the both sides of each sole 9 that vibrates are hinged with connecting rod 10 and are fixed with some hollow screws 11 that are threaded with the sole 9 that vibrates in sole 9 bottoms of vibrating, the other end of the connecting rod 10 on the sole 9 that vibrates that opening is relative is hinged on the carriage 12, is fixed with variable frequency vibrator 13 on the carriage 12.Lifting linking member 8 is equipped with beam 16 with the junction of connecting frame 5, is with elastic axis bearing 17 on the rotating shaft of connection road wheel and the bearing between the base 1; Also be fixed with column 14 and the program control case 19 of PLC on the base 1 near connecting frame 5, be equipped with stop 15 on the connecting frame 5 of column 14 and lifting linking member 8 both sides, stop 15 on the column 14 is located at the corresponding position that connecting frame 5 needs pause, and the signal output part of stop 15 links to each other with the input of the program control case 19 of PLC; Be connected with frequency modulator and adjustable limit switch on the variable frequency vibrator 13.In specific implementation process, the bottom of lifting hydraulic cylinder 2 and guide pin bushing 3 all can be welded with the contiguous block of horizontal direction, all has screwed hole between contiguous block and the base 1 and by being threaded; Corresponding position with lifting hydraulic cylinder 2 and guide pillar 4 on connecting frame 5 bottom surfaces is welded with contiguous block, by bolt the contiguous block on the connecting frame 5 and lifting hydraulic cylinder 2 and guide pillar 4 tops is linked together then; Be fixed with support member on two guide pin bushings, 3 external cylindrical surfaces, be used for gear shaft 6 fixingly, and having the driving hole that the gear that is used to make on the gear shaft 6 and the tooth bar on the guide pillar 4 mesh on the guide pin bushing 3; Connecting frame 5 is provided with the rectangular opening (being that the hole is the hole of from left to right opening in the horizontal direction) that lifting linking member 8 is horizontally slipped; Folding hydraulic cylinder 18 fixedly is fast by fixedlying connected on the face of cylinder of lifting linking member 8 with the lifting linking member 8 of junction plate 7 both sides, and the two ends with folding hydraulic cylinder 18 are connected with contiguous block then; Wear by jointed shaft between the hinge bar and jointed shaft is penetrated in hinge hole and the hinged groove, to realize being connected of hinge bar and connecting frame 5; The hollow screw 11 of each sole 9 bottom of vibrating is threaded with the sole 9 that vibrates and the quantity of hollow screw 11 should be more than or equal to two, can get rid of preferably to guarantee the air bag in the concrete, in addition, the program control case 19 of PLC, frequency modulator and adjustable limit switch used in the utility model are existing product, all can buy on the market.

Claims (5)

1, a kind of double-block type sleeper circumferential concrete vibration supplementing device, comprise the base (1) that has road wheel, it is characterized in that: base (1) center fixed has lifting hydraulic cylinder (2) and lays respectively at the guide pin bushing (3) of lifting hydraulic cylinder (2) left and right sides, be with guide pillar (4) in the guide pin bushing (3), lifting hydraulic cylinder (2) and guide pillar (4) upper end horizontal fixed have connecting frame (5), guide pillar (4) face of cylinder is provided with longitudinal rack, be fixed with by a rotating shaft between two guide pin bushings (3) and be positioned at gear shaft (6) that the isometrical gear in rotating shaft two ends forms and the gear at gear shaft (6) two ends respectively with corresponding guide pillar (4) on the tooth bar engagement, the left and right sides of connecting frame (5) is fixed with the vertical junction plate (7) corresponding with position, the road wheel left and right sides and has that communicate with its soffit on connecting frame (5) upper surface of each junction plate (7) left and right sides and symmetrical with respect to junction plate (7) rectangular opening, be provided with lifting linking member (8) in each rectangular opening, each junction plate (7) and be positioned on the sustained height of upper and lower of lifting linking member (8) of its both sides and be provided with hinge hole and hinged groove respectively, be provided with two hinge bars between the hinged groove of the hinge hole on each junction plate (7) top and its both sides lifting linking member (8) bottom and between the hinge hole on the hinged groove of each junction plate (7) bottom and its both sides lifting linking member (8) top, be provided with two hinge bars, these four hinge bars intersect part and are articulated structure, all be fixed with folding hydraulic cylinder (18) between the lifting linking member (8) of each junction plate (7) both sides, it is relative that each lifting linking member (8) bottom all is fixed with the vibrate sole that vibrates (9) opening of lifting linking member (8) bottom of sole (9) and each junction plate (7) both sides of " U " shape, the both sides of each sole that vibrates (9) are hinged with connecting rod (10) and are fixed with some hollow screws (11) that are threaded with the sole that vibrates (9) in the sole that vibrates (9) bottom, the other end of the connecting rod (10) on the sole that vibrates (9) that opening is relative is hinged on the carriage (12), is fixed with variable frequency vibrator (13) on the carriage (12).
2, double-block type sleeper circumferential concrete vibration supplementing device according to claim 1, it is characterized in that: lifting linking member (8) is equipped with beam (16) with the junction of connecting frame (5), is with elastic axis bearing (17) on the rotating shaft of connection road wheel and the bearing between the base (1).
3, double-block type sleeper circumferential concrete vibration supplementing device according to claim 1 and 2, it is characterized in that: also be fixed with column (14) and the program control case of PLC on the base (1) near connecting frame (5), be equipped with stop (15) on the connecting frame (5) of column (14) and lifting linking member (8) both sides, stop (15) on the column (14) is located at the corresponding position that connecting frame (5) needs pause, and the signal output part of stop (15) links to each other with the input of the program control case of PLC.
4, double-block type sleeper circumferential concrete vibration supplementing device according to claim 1 and 2 is characterized in that: be connected with frequency modulator and adjustable limit switch on the variable frequency vibrator (13).
5, double-block type sleeper circumferential concrete vibration supplementing device according to claim 3 is characterized in that: be connected with frequency modulator and adjustable limit switch on the variable frequency vibrator (13).
CN2009201032409U 2009-06-08 2009-06-08 Double-block type vibration compensator for concrete surrounding sleeper Expired - Lifetime CN201416130Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201032409U CN201416130Y (en) 2009-06-08 2009-06-08 Double-block type vibration compensator for concrete surrounding sleeper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201032409U CN201416130Y (en) 2009-06-08 2009-06-08 Double-block type vibration compensator for concrete surrounding sleeper

Publications (1)

Publication Number Publication Date
CN201416130Y true CN201416130Y (en) 2010-03-03

Family

ID=41792547

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201032409U Expired - Lifetime CN201416130Y (en) 2009-06-08 2009-06-08 Double-block type vibration compensator for concrete surrounding sleeper

Country Status (1)

Country Link
CN (1) CN201416130Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435297A (en) * 2013-07-18 2013-12-11 杭州博数土木工程技术有限公司 High-coarse-aggregate concrete and variable-frequency pressurizing vibration preparation method thereof
CN111910929A (en) * 2020-07-15 2020-11-10 龙世金 Internal extrusion synchronous backfill type concrete vibrating rod
CN111963236A (en) * 2020-08-12 2020-11-20 平顶山天安煤业股份有限公司 Grouting, filling and supporting device for gob-side entry retaining of coal face

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435297A (en) * 2013-07-18 2013-12-11 杭州博数土木工程技术有限公司 High-coarse-aggregate concrete and variable-frequency pressurizing vibration preparation method thereof
CN103435297B (en) * 2013-07-18 2016-01-27 浙江中隧桥波形钢腹板有限公司 High coarse aggregate concrete and frequency conversion pressurization and vibration preparation method
CN111910929A (en) * 2020-07-15 2020-11-10 龙世金 Internal extrusion synchronous backfill type concrete vibrating rod
CN111910929B (en) * 2020-07-15 2021-11-12 龙世金 Internal extrusion synchronous backfill type concrete vibrating rod
CN111963236A (en) * 2020-08-12 2020-11-20 平顶山天安煤业股份有限公司 Grouting, filling and supporting device for gob-side entry retaining of coal face

Similar Documents

Publication Publication Date Title
CN201486572U (en) Multi-reducing lining mould plate trolley
CN101487332A (en) Prefabricated hollow superposed beam, and cast-in-situ construction method for beam and precast slab
CN201416130Y (en) Double-block type vibration compensator for concrete surrounding sleeper
CN108103945B (en) A kind of whole landing mould bases of cast-in-situ box girder
CN112761664A (en) Prefabricated mid-board installation device of shield tunnel
CN109304795A (en) The hydraulic gliding model of T beam and operating method
CN101581063B (en) Double-block type sleeper circumferential concrete vibration supplementing device
CN202298489U (en) Culvert mold plate for framework
CN204844405U (en) Fixed mould platform is used in synchronous vibration device and production of PC component
CN113370384A (en) Fixed hydraulic template moving trolley tool and T-beam prefabricating construction process
CN102191751B (en) Hydraulic internal mold for asymmetric box girder
CN201358464Y (en) Steep thin-wall concrete lining machine
CN201873941U (en) Adjustable tank structure capable of solving bumping at bridge head
CN201179686Y (en) Bearing platform type frame rail board mold
CN210420901U (en) Bridge reinforcing apparatus
CN106758577A (en) The moveable entirety transfering type straddle-type monorail PC track beam forms of bed die
CN205934612U (en) Leveling device vibrates
CN201816135U (en) Bridge body production auxiliary equipment and bridge body production system
CN208179882U (en) A kind of template system of straddle type monorail rail tracks
CN102001127B (en) Combined box girder hydraulic internal mould
CN215107425U (en) Vibrator for building engineering
CN206736636U (en) The moveable overall transfering type straddle-type monorail PC track beam forms of bed die
CN207567669U (en) A kind of multipurpose supporting leg
CN109278175A (en) A kind of demolding of track slab machine
CN203471913U (en) Concrete hollow block precasting machine

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20100303

Effective date of abandoning: 20090608