CN110029575A - A kind of Bridge Seismic expansion joint - Google Patents

A kind of Bridge Seismic expansion joint Download PDF

Info

Publication number
CN110029575A
CN110029575A CN201910418866.7A CN201910418866A CN110029575A CN 110029575 A CN110029575 A CN 110029575A CN 201910418866 A CN201910418866 A CN 201910418866A CN 110029575 A CN110029575 A CN 110029575A
Authority
CN
China
Prior art keywords
ripple frame
ripple
bridge
protrusion
expansion joint
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
CN201910418866.7A
Other languages
Chinese (zh)
Other versions
CN110029575B (en
Inventor
孙虎
杜祝遥
王振峰
何佳
郭户林
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.)
Jujia Energy Group Co.,Ltd.
Original Assignee
Shaanxi Institute of Technology
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 Shaanxi Institute of Technology filed Critical Shaanxi Institute of Technology
Priority to CN201910418866.7A priority Critical patent/CN110029575B/en
Publication of CN110029575A publication Critical patent/CN110029575A/en
Application granted granted Critical
Publication of CN110029575B publication Critical patent/CN110029575B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/06Arrangement, construction or bridging of expansion joints

Abstract

The invention discloses a kind of Bridge Seismic expansion joints, seam body including square groove type and it is located at and stitches intracorporal buffer damping structure, buffer damping structure includes positioned at the right ripple frame and left ripple frame for stitching internal two sides, right ripple frame is identical with left ripple frame shape, structure and is staggered in same level, plane is concordant with bridge body top surface on ripple frame, and ripple frame, which has, to be embedded in the intrinsic reinforcement rod of bridge;Ripple top of the trellis has spaced protrusion and recessed portion, and protrusion front end and recessed portion tail end are arc-shaped, and is equipped with and protrusion parallel-plate disposed in parallel below recessed portion;In the present apparatus, movement is followed by damper, body is being stitched due to keeping stable state when cold-thermal effect contraction stretching, extension, the spring shock absorption of the conventional single formula of difference, when stitching body spacing due to temperature change, it is able to maintain the relatively stable of spring length, its damping performance will not be influenced due to stretching contraction for a long time, guarantee the permanently effective of buffer damping structure.

Description

A kind of Bridge Seismic expansion joint
Technical field
The present invention relates to bridge highway facilities, specifically a kind of Bridge Seismic expansion joint.
Background technique
Bridge expanssion joint refers to meet the requirement of bridge floor deformation, usually between two beam-ends, between beam-ends and abutment Or expansion joint is set in the articulated position of bridge.It is required that expansion joint it is parallel, perpendicular to the both direction of bridge axes, can be from Solid and reliable by stretching, vehicle driving is out-of-date to answer smoothly, without kick and noise;It wants to prevent rainwater and rubbish soil from penetrating into resistance Plug;Installation, check, maintenance, eliminate dirt will simple and convenient.At setting expansion joint, railing will be disconnected with deck paving. The effect of bridge expanssion joint be to adjust displacement between the superstructure as caused by vehicular load and bridge construction material and It is coupled.The telescopic device of skew bridge is once destroyed, and will seriously affect speed, comfort and the safety of driving, or even causes to go Vehicle safety accident.
The structure of current bridge expanssion joint is mostly such as a kind of Chinese patent notification number CN208201627U " bridge expanssion joint The shock-damping structure that damping device ", notification number CN108755398A " bridge expanssion joint " are connected using direct spring, though this class formation So it can guarantee damping effect within a certain period of time, but after long-term use due to expansion joint, caused by temperature change It shrinks, stretch in constantly variation, spring is also to follow to deform together, and cause spring performance that can be gradually reduced, damping performance meeting It has a greatly reduced quality.
Summary of the invention
The purpose of the present invention is to provide a kind of Bridge Seismic expansion joints, to solve mentioned above in the background art ask Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of Bridge Seismic expansion joint, seam body including square groove type and is located at and stitches intracorporal buffer damping structure, bumper and absorbing shock knot Structure include positioned at the right ripple frame and left ripple frame for stitching internal two sides, right ripple frame it is identical with left ripple frame shape, structure and It is staggered in same level, plane is concordant with bridge body top surface on ripple frame, and ripple frame, which has, to be embedded in bridge ontology Interior reinforcement rod;Ripple top of the trellis has spaced protrusion and recessed portion, and protrusion front end and recessed portion tail end are in It is arc-shaped, it is equipped with below recessed portion and passes through riser one with protrusion parallel-plate disposed in parallel, parallel-plate and recessed portion tail end Body formed setting is equipped with damper on riser, and damper includes damping spring, and damping spring upper and lower ends are equipped with slide bar, And it is respectively equipped with upper slip ring and lower slip ring in slide bar upper and lower ends, sliding slot is offered in parallel plate top surface and protrusion bottom surface, Corresponding sliding slot is slidably connected respectively for upper slip ring and lower slip ring, and slide bar synchronization is slidably connected with corresponding sliding slot.
It is equipped in buffer damping structure bottom and stretches buffer, stretching buffer includes the level for being fixed on ripple frame bottom Bar, horizon bar front end have pressure ram, are equipped between two groups of corresponding pressure rams and are affixed with pressure ram leading flank and merge sliding The balancer of connection, the balancer section are in the isosceles trapezoid shape to close up upwards, are equipped with one in balancer bottom and consolidate with it Surely the loop bar connected, loop bar bottom are fitted with the carbine being slidably connected with it, and carbine lower end, which is hung over, is located at seam body bottom surface On shackle, two symmetrical spring levers, spring lever and balancer are equipped in balance countertop and passes through flexible bar rotation connection, bullet Spring base upper end is connect with the protrusion of ripple frame by flexible bar rotation.
As a preferred solution of the present invention: the reinforcement rod docks to form " mouth " font cavity with ripple frame sealing backside, And silencing cotton is filled in cavity.
As the present invention further preferred embodiment: between the riser and corresponding ripple frame vertical plane there are Gap, and the parallel-plate side of bottom of the riser fits with ripple frame vertical plane and free-standing is connect.
Compared with prior art, the beneficial effects of the present invention are: in the present apparatus, movement is followed by damper, is being stitched Body is due to keeping stable state, the spring shock absorption of the conventional single formula of difference, in seam body due to temperature when cold-thermal effect shrinks and stretches When changing spacing, it is able to maintain the relatively stable of spring length, it will not be influenced due to stretching contraction for a long time and subtract Shock stability guarantees the permanently effective of buffer damping structure, meanwhile, by stretching the setting of buffer, guarantee buffer damping structure Stabilization, avoid as pull and caused by ripple frame and bridge ontology be detached from, further ensuring buffer damping structure can Shock-absorbing protecting is carried out to expansion joint for a long time.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the part-structure perspective view of ripple frame in the present invention.
Fig. 3 is the enlarged drawing that buffer is stretched in the present invention.
1- bridge ontology in figure, the right ripple frame of 2-, the left ripple frame of 3-, 4- reinforcement rod, 5- protrusion, 6- recessed portion, 7- are perpendicular Plate, 8- parallel-plate, 9- damper, slip ring under 10-, the upper slip ring of 11-, 12- slide bar, 13- damping spring, 14- sliding slot, 15- noise reduction Cotton, 16- stretch buffer, 17- horizon bar, 18- pressure ram, 19- balancer, 20- loop bar, 21- carbine, 22- shackle, 23- Spring lever, 24- stretch bull stick.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right" "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
Embodiment 1:
Please refer to Fig. 1-3, a kind of Bridge Seismic expansion joint and is located at and stitches intracorporal bumper and absorbing shock knot seam body including square groove type Structure, buffer damping structure include positioned at the right ripple frame 2 and left ripple frame 3 for stitching internal two sides, right ripple frame 2 and left ripple frame 3 Shape, structure is identical and is staggered in same level, plane and 1 either flush of bridge ontology, ripple frame on ripple frame With the reinforcement rod 4 being embedded in bridge ontology 1;Ripple top of the trellis has spaced protrusion 5 and recessed portion 6, protrusion Portion 5 is for being inserted into the recessed portion 6 on the ripple frame of opposite, so that the stabilization of seam body structure is kept when deformation occurs in seam body, it is convex 5 front end of portion and 6 tail end of recessed portion are arc-shaped out, below recessed portion 6 be equipped with the parallel-plate 8 disposed in parallel of protrusion 5, Parallel-plate 8 and 6 tail end of recessed portion are integrally formed by riser 7 to be arranged, and damper 9 is equipped on riser 7, and damper 9 includes subtracting Spring 13 is shaken, 13 upper and lower ends of damping spring are equipped with slide bar 12, and are respectively equipped with upper 11 He of slip ring in 12 upper and lower ends of slide bar Lower slip ring 10 offers sliding slot 14 in 8 top surface of parallel-plate and 5 bottom surface of protrusion, upper slip ring 11 and lower slip ring 10 respectively with its Corresponding sliding slot 14 is slidably connected, and slide bar 12 synchronization be slidably connected with corresponding sliding slot 14, buffer damping structure integrally by To when vibration, protrusion 5 is under pressure to generate be located in the vertical direction, absorb by 9 pairs of damper vibrations slow Solution avoids bridge ontology 1 from being damaged by vibration to quickly keep stable distance between protrusion 5 and parallel-plate 8, specifically, seam Damper 9 can be by sliding synchronous change position of the slip ring in sliding slot 14, and when 5 peace of protrusion when body two sides are to contract Between andante 8 position generate variation when, slip ring with and its corresponding sliding slot 14 keep relatively fixed, slide bar 12 along the chute 14 into Row lifting, and Compression and Expansion is carried out to damping spring 13, the effect of damping is realized by 13 damping vibration of damping spring;Pass through Damper 9 follows movement, will not be due to drawing for a long time in seam body due to keeping stable state when cold-thermal effect contraction stretching, extension It stretches contraction and influences its damping performance, guarantee the permanently effective of buffer damping structure.
In order to guarantee the stabilization of buffer damping structure, avoid as pull and caused by ripple frame and bridge ontology 1 be detached from, It is equipped in buffer damping structure bottom and stretches buffer 16, stretching buffer 16 includes the horizon bar for being fixed on ripple frame bottom 17,17 front end of horizon bar has pressure ram 18, is equipped between two groups of corresponding pressure rams 18 and is affixed with 18 leading flank of pressure ram Merge the balancer 19 being slidably connected, 19 section of balancer is in the isosceles trapezoid shape to close up upwards, in 19 bottom of balancer Equipped with a loop bar being firmly connected with it 20,20 bottom of loop bar is fitted with the carbine 21 being slidably connected with it, carbine 21 Lower end, which is hung over, to be located on the shackle 22 of seam body bottom surface, is set in 19 top surface of balancer there are two symmetrical spring lever 23, spring lever 23 It is rotatablely connected with balancer 19 by flexible bull stick 24, the protrusion 5 of 23 upper end of spring lever and ripple frame passes through the bull stick 24 that stretches Rotation connection is formed by Double-spring rod 23 and loop bar 20 and is supported to stablizing for balancer 19, when seam body width narrows, bridge Ontology 1 and ripple frame synchronize inside contract, Impact direction is identical between bridge ontology 1 and ripple frame at this time, pulls power very little, and when seam When body width becomes larger, bridge ontology 1 is displaced outwardly, generated between bridge ontology 1 and ripple frame at this time it is certain pull power, at this moment Push by stretching buffer 16, which acts on, to balance this pulls power, thus avoid as pull and caused by ripple frame and bridge Beam ontology 1 is detached from, and guarantees the permanently effective of buffer damping structure, specifically, pressure ram 18 squeezes balancer 19 when inside Pressure, balancer 19 declines, and when outside, spacing increases between pressure ram 18, is drawn high balancer 19 upwards by spring lever 23, puts down The outside push pressure ram 18 of weighing apparatus platform 19 is i.e. synchronous to push ripple frame to move outward, and holding ripple frame is bonded with bridge ontology 1.
Embodiment 2:
On the basis of embodiment 1, the reinforcement rod 4 docks to form " mouth " font cavity with ripple frame sealing backside, and It is filled with silencing cotton 15 in cavity, when vehicle is by expansion joint, generates vibration with 1 surface collision of bridge ontology, vibration passes through wave Line frame, reinforcement rod 4 pass to silencing cotton 15, and the noise that 15 pairs of silencing cotton vibrations generate is eliminated, and then is also functioned to vibration Certain elimination effect.
Embodiment 3:
On the basis of embodiment 1, there are gap between the riser 7 and corresponding ripple frame vertical plane, and riser 7 8 side of parallel-plate of bottom fits with ripple frame vertical plane and free-standing is connect, this design ensure that when being shaken, Different vibrations can occur from ripple frame for parallel-plate 8, avoid buffer damping structure from generating resonance effect, to further increase The safety of device entirety and bridge ontology 1.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. a kind of Bridge Seismic expansion joint, seam body including square groove type and it is located at and stitches intracorporal buffer damping structure, bumper and absorbing shock Structure includes positioned at the right ripple frame (2) and left ripple frame (3), right ripple frame (2) and left ripple frame (3) shape for stitching internal two sides Shape, structure are identical and are staggered in same level, plane and bridge ontology (1) either flush, ripple frame on ripple frame With the reinforcement rod (4) being embedded in bridge ontology (1);Ripple top of the trellis has spaced protrusion (5) and recessed portion (6), it is equipped with below recessed portion (6) and protrusion (5) parallel-plate disposed in parallel (8), parallel-plate (8) and recessed portion (6) tail End is integrally formed setting by riser (7), is equipped with damper (9) on riser (7), and damper (9) includes damping spring (13), Damping spring (13) upper and lower ends are equipped with slide bar (12), and slide bar (12) upper and lower ends be respectively equipped with upper slip ring (11) and under Slip ring (10) offers sliding slot (14), upper slip ring (11) and lower slip ring in parallel-plate (8) top surface and protrusion (5) bottom surface (10) the corresponding sliding slot (14) of difference is slidably connected, and slide bar (12) synchronization is slidably connected with corresponding sliding slot (14).
2. a kind of Bridge Seismic expansion joint according to claim 1, which is characterized in that protrusion (5) front end and recessed Concave portion (6) tail end is arc-shaped.
3. a kind of Bridge Seismic expansion joint according to claim 1 or 2, which is characterized in that in buffer damping structure bottom Equipped with buffer (16) are stretched, stretching buffer (16) includes the horizon bar (17) for being fixed on ripple frame bottom, horizon bar (17) Front end has pressure ram (18), is equipped between two groups of corresponding pressure rams (18) and is affixed with pressure ram (18) leading flank and merges cunning The balancer (19) of dynamic connection, sets that there are two symmetrical spring lever (23), spring lever (23) and balances in balancer (19) top surface Platform (19) passes through the bull stick that stretches by flexible bull stick (24) rotation connection, spring lever (23) upper end and the protrusion (5) of ripple frame (24) it is rotatablely connected.
4. a kind of Bridge Seismic expansion joint according to claim 3, which is characterized in that balancer (19) section be in The isosceles trapezoid shape of upper closing in.
5. a kind of Bridge Seismic expansion joint according to claim 3, which is characterized in that be equipped with one in balancer (19) bottom A loop bar (20) being firmly connected with it, loop bar (20) bottom are fitted with the carbine (21) being slidably connected with it, carbine (21) lower end, which is hung over, is located on the shackle (22) of seam body bottom surface.
6. a kind of Bridge Seismic expansion joint according to claim 1 or 2, which is characterized in that the reinforcement rod (4) and ripple Frame sealing backside docks to form " mouth " font cavity, and is filled with silencing cotton (15) in cavity.
7. a kind of Bridge Seismic expansion joint according to claim 1 or 2, which is characterized in that the riser (7) and right with it There are gaps between the ripple frame vertical plane answered, and parallel-plate (8) side of riser (7) bottom fits with ripple frame vertical plane And free-standing connects.
CN201910418866.7A 2019-05-20 2019-05-20 Bridge shock attenuation expansion joint Active CN110029575B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910418866.7A CN110029575B (en) 2019-05-20 2019-05-20 Bridge shock attenuation expansion joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910418866.7A CN110029575B (en) 2019-05-20 2019-05-20 Bridge shock attenuation expansion joint

Publications (2)

Publication Number Publication Date
CN110029575A true CN110029575A (en) 2019-07-19
CN110029575B CN110029575B (en) 2020-10-27

Family

ID=67242758

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910418866.7A Active CN110029575B (en) 2019-05-20 2019-05-20 Bridge shock attenuation expansion joint

Country Status (1)

Country Link
CN (1) CN110029575B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820550A (en) * 2019-12-04 2020-02-21 韩敏慧 Telescoping device of shock-proof buffering formula bridge

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100488624B1 (en) * 2004-04-13 2005-05-11 주식회사 동아기술공사 Expansion and contraction joint having means for absorbing noise/ shock and preventing relaxation of bolt/nut, and constructing method thereof
JP3671165B2 (en) * 2001-12-21 2005-07-13 利弘 中川 Underground telescopic device for elevated road and its construction method
KR20090006421A (en) * 2007-07-11 2009-01-15 서울시립대학교 산학협력단 Structure for reducing noise
KR20150145841A (en) * 2014-06-19 2015-12-31 이현숙 Noise reduction Hybrid Expansion Joint and Structure of Expansion Joint
CN106223192A (en) * 2016-08-29 2016-12-14 代营伟 A kind of highway bridge damped noise reduction device
CN107687127A (en) * 2017-09-30 2018-02-13 青岛江河湖海创新技术研究院有限公司 A kind of Novel road bridge expansion joint
CN208201627U (en) * 2018-03-06 2018-12-07 庄永和 A kind of bridge expanssion joint damping device
CN208733460U (en) * 2018-05-28 2019-04-12 南京工业职业技术学院 A kind of road and bridge noise reduction device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3671165B2 (en) * 2001-12-21 2005-07-13 利弘 中川 Underground telescopic device for elevated road and its construction method
KR100488624B1 (en) * 2004-04-13 2005-05-11 주식회사 동아기술공사 Expansion and contraction joint having means for absorbing noise/ shock and preventing relaxation of bolt/nut, and constructing method thereof
KR20090006421A (en) * 2007-07-11 2009-01-15 서울시립대학교 산학협력단 Structure for reducing noise
KR20150145841A (en) * 2014-06-19 2015-12-31 이현숙 Noise reduction Hybrid Expansion Joint and Structure of Expansion Joint
CN106223192A (en) * 2016-08-29 2016-12-14 代营伟 A kind of highway bridge damped noise reduction device
CN107687127A (en) * 2017-09-30 2018-02-13 青岛江河湖海创新技术研究院有限公司 A kind of Novel road bridge expansion joint
CN208201627U (en) * 2018-03-06 2018-12-07 庄永和 A kind of bridge expanssion joint damping device
CN208733460U (en) * 2018-05-28 2019-04-12 南京工业职业技术学院 A kind of road and bridge noise reduction device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820550A (en) * 2019-12-04 2020-02-21 韩敏慧 Telescoping device of shock-proof buffering formula bridge
CN110820550B (en) * 2019-12-04 2021-04-30 韩敏慧 Telescoping device of shock-proof buffering formula bridge

Also Published As

Publication number Publication date
CN110029575B (en) 2020-10-27

Similar Documents

Publication Publication Date Title
CN207481827U (en) It is a kind of that there is the bumper of multi-buffer
CN108468269A (en) A kind of bridge antidetonation pedestal and its anti-shock methods
CN206245205U (en) A kind of spacing guidance set structure of bridge pier
CN209178797U (en) A kind of bridge earthquake resistance attachment device
CN108457176A (en) A kind of the bridge pedestal and its anti-shock methods of antidetonation
CN110029575A (en) A kind of Bridge Seismic expansion joint
CN108951404A (en) Precast segment pier stud cross connecting structure and connection method
CN107190632B (en) A kind of highway bridge girder falling limiting device
CN210507090U (en) Combined spliced bridge damping structure
CN106638273B (en) A kind of stub formula bridge anti-deviation device and its Anti-deviation method
CN209686233U (en) A kind of Bridge guardrail
CN110145330A (en) A kind of shock resistance tendentiousness roadway support device with deformation buffering
CN109594466A (en) A kind of anti-fall beam construction that can effectively consume energy
CN208777155U (en) A kind of prefabricated subsection bridge pier of rotary assembling
KR100917035B1 (en) Bridge Support Apparatus Capable of Bridge Side Declining Prevention and Bridge Direction Sliding
CN208733460U (en) A kind of road and bridge noise reduction device
CN206219972U (en) A kind of bridge beam body anti-deviation device
CN207672442U (en) A kind of road and bridge crack easy to use ruggedized construction
CN211113159U (en) Adjustable bridge anti-seismic support
CN208777163U (en) Fishback anchor ring gusset part
CN204040588U (en) A kind of anti-offset assembly of power transmission tower frame
CN208777162U (en) Fishback lateral deflection device
CN208884342U (en) A kind of bridge earthquake resistance protective device
CN208105039U (en) With girder falling elastic telescopic device
KR20170074112A (en) Up-lifting force control device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20230315

Address after: 510800 room 901, 9th floor, Shanghui building, No. 110, East Commercial Avenue, Xinhua Street, Huadu District, Guangzhou, Guangdong

Patentee after: GUANGDONG DELI ROAD AND BRIDGE EQUIPMENT TECHNOLOGY Co.,Ltd.

Address before: 710000 No.8 Renmin Road, Fuyi District, Xi'an City, Shaanxi Province

Patentee before: SHAANXI TECHNICAL INSTITUTE OF DEFENSE INDUSTRY

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230921

Address after: Room 301, Unit 1, Building 8, Tianxi Xiangyuan, No. 1469 Hongqi South Street, Taocheng District, Hengshui City, Hebei Province, 053000

Patentee after: Wen Jiahao

Patentee after: Yan Maosen

Address before: 510800 room 901, 9th floor, Shanghui building, No. 110, East Commercial Avenue, Xinhua Street, Huadu District, Guangzhou, Guangdong

Patentee before: GUANGDONG DELI ROAD AND BRIDGE EQUIPMENT TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20231024

Address after: 053000 Zhaoquan economic recycling Park, Taocheng District, Hengshui City, Hebei Province

Patentee after: Jujia Energy Group Co.,Ltd.

Address before: Room 301, Unit 1, Building 8, Tianxi Xiangyuan, No. 1469 Hongqi South Street, Taocheng District, Hengshui City, Hebei Province, 053000

Patentee before: Wen Jiahao

Patentee before: Yan Maosen

TR01 Transfer of patent right