CN111963067B - Anti-vibration device for bridge pile foundation construction - Google Patents
Anti-vibration device for bridge pile foundation construction Download PDFInfo
- Publication number
- CN111963067B CN111963067B CN202010829307.8A CN202010829307A CN111963067B CN 111963067 B CN111963067 B CN 111963067B CN 202010829307 A CN202010829307 A CN 202010829307A CN 111963067 B CN111963067 B CN 111963067B
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- pile foundation
- fixed mounting
- foundation construction
- tops
- fixedly provided
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
Abstract
The invention belongs to the field of bridge pile foundations, and particularly relates to a vibration preventing device for bridge pile foundation construction, wherein pillars are arranged at the tops of sleeve seats at the tops of mounting plates in a sliding manner, drilling machines are fixedly arranged at the bottoms of transverse plates at the tops of two pillars, the bottom of an output shaft of each drilling machine penetrates through the tops of the transverse plates and extends to the lower side of the transverse plates, the bottom of a drill bit penetrates through the top of a steel casing at one side of the mounting plate and extends to the inside of the steel casing, a rolling groove is formed in the top of a fixing plate at the top of the steel casing, an arc-shaped plate can be arranged on the top of a rolling ball on the inner wall of the bottom of the rolling groove in a detachable and rolling manner, sliding blocks which are connected with the two transverse columns in a sliding manner are arranged at the tops of two supporting plates at the tops of the mounting plate in a sliding manner, the vibration and the movement of the drilling machines are buffered and damped by a first spring, a second spring and a buffer spring, so that the vibration in the pile foundation construction process can be prevented, the position of the drill bit is limited by the steel casing, prevent that the drill bit from taking place the skew of position at drilling process, precision that can effectual improvement pile foundation drilling in-process.
Description
Technical Field
The invention belongs to the field of bridge pile foundations, and relates to an anti-vibration device for bridge pile foundation construction.
Background
The bridge pile foundation is used as an important component of an engineering structure and is used for transmitting the load of an upper structure to a geotechnical foundation, and the quality condition of the bridge pile foundation plays a vital role in ensuring the safe operation of the engineering structure. In the construction process of the bridge pile foundation, a drilling device is needed to drill holes below the ground, and a foundation is laid for bridge construction.
Present bridge pile foundation drilling equipment mainly has following problem: the drilling tool can generate serious vibration in the drilling process, so that the drill bit is inclined easily during drilling, and the drilling precision is influenced.
Disclosure of Invention
In view of the above, the invention provides an anti-vibration device for bridge pile foundation construction, which aims to solve the problem that a drilling tool can generate serious vibration in the drilling process, so that the drilling precision is affected by inclination of a drill bit during drilling.
In order to achieve the purpose, the invention provides a vibration preventing device for bridge pile foundation construction, which comprises a mounting plate, wherein two sleeve seats are fixedly arranged at the top of the mounting plate, the two sleeve seats are symmetrically arranged, supporting columns are respectively arranged at the tops of the two sleeve seats in a sliding manner, the top of each supporting column is fixedly provided with a transverse plate, a drilling machine is fixedly arranged at the bottom of the transverse plate, the bottom of an output shaft of the drilling machine penetrates through the top of the transverse plate and extends to the lower part of the transverse plate, a drill bit is fixedly arranged at the bottom of the output shaft of the drilling machine, a steel casing is fixedly arranged at one side of the mounting plate, the bottom of the drill bit penetrates through the top of the steel casing and extends to the inside of the steel casing, a fixing plate is fixedly arranged at the top of the steel casing, a rolling groove is arranged at the top of the fixing plate, a rolling ball is arranged on the inner wall of the bottom of the rolling groove in a rolling manner, and an arc-shaped plate can be separated from the top of the rolling ball, the top fixed mounting of mounting panel has two extension boards that the symmetry set up, and the equal slidable mounting in top of two extension boards has the slider, and the equal fixed mounting in top of two extension boards has the spreader, two sliders respectively with two spreader sliding connection.
The principle of the basic scheme is as follows: when the drilling machine works to press the movable support to move downwards, the first spring, the second spring and the buffer spring are arranged to buffer and absorb the vibration and movement of the drilling machine, so that the vibration in the pile foundation construction process can be prevented, the position of the drill bit is limited by the steel casing, the position deviation of the drill bit in the drilling process is prevented, and the precision in the pile foundation drilling process can be effectively improved.
Further, the equal fixed mounting in bottom four corners position of mounting panel has the landing leg, and the equal fixed mounting in bottom of four landing legs has the blotter of placing on the earth's surface, beneficial effect: in order to improve the stability of mounting panel installation, improve the support intensity of mounting panel.
Further, the bottom fixed mounting of rig output shaft has the drill spindle, the bottom fixed mounting of drill spindle has the lead screw, the bottom of lead screw runs through the top that the steel protected a section of thick bamboo and extends to the inside that the steel protected a section of thick bamboo, and the outside of lead screw and the inside threaded connection that the steel protected a section of thick bamboo, the bottom of lead screw and the top fixed mounting of drill bit, beneficial effect: carry on spacingly for effectual position to the drill bit, improve the precision to pile foundation drilling.
Further, the both sides of arc all rotate and install the action bars, the top of two action bars respectively with one side rotation installation of pillar, fixed mounting has two second springs that the symmetry set up on the bottom inner wall of roll groove, the top of two second springs all with the bottom fixed mounting of arc, beneficial effect: in order to buffer and absorb the vibration force in the pile foundation construction process.
Further, the spout has all been seted up at the top of two cover seats, the bottom of two pillars extend to the inside of two spouts respectively and respectively with two spout sliding connection, the equal fixed mounting in top of two cover seats has first spring, and two first springs overlap respectively and establish in the outside of two pillars, and the top of two first springs respectively with the outside fixed mounting of two pillars, beneficial effect: in order to cushion the forces acting on the strut.
Further, the equal fixed mounting in one side that two pillars kept away from each other has a connecting plate, and the bottom of two connecting plates is all rotated and is installed even board, and two even boards are the splayed setting, and two even bottoms of board rotate with one side of two sliders respectively and are connected beneficial effect: in order to convert the longitudinal vibration force into the transverse position for consumption, the influence of vibration on the position of the drill bit is reduced.
Further, the equal fixed mounting in top of two extension boards has the slide rail, and the equal slidable mounting in top of two slide rails has the slide bar, and the top of two slide bars respectively with the bottom fixed mounting of two sliders, beneficial effect: in order to make the transverse movement of the slide block more stable
Further, the base is cylindrical setting, and the equal fixed mounting in one end that two spreader kept away from each other has a fixed block, and the equal fixed mounting in one side that two fixed blocks are close to each other has buffer spring, and two buffer spring overlap respectively and establish in the outside of two spreaders, and one side fixed mounting that one end that two buffer spring are close to each other respectively and two sliders keep away from each other, beneficial effect: to further absorb vibrational forces.
Further, the equal fixed mounting in top one side of two extension boards has the dead lever, the top of two dead levers respectively with the bottom fixed mounting of two spreader, beneficial effect: in order to improve the stability of the cross-post.
Further, the top fixed mounting that a steel protected section of thick bamboo has two supports that the symmetry set up, and the top fixed mounting of two supports has same horizontal bar, the top of horizontal bar and the bottom fixed mounting of fixed plate, beneficial effect: to improve the strength of the mounting plate.
The invention has the beneficial effects that:
1. in order to share the vibration force applied to the support columns, the connecting plate is arranged on one side, away from each other, of each support column, and the connecting plate below the connecting plate can drive the second spring to transversely deform so as to buffer the vibration force applied to the support columns, so that the vibration damping and resonance preventing effects are achieved.
2. According to the anti-vibration device for bridge pile foundation construction, in order to convert acting force applied to the arc-shaped plate into power, the rolling balls arranged on the inner wall of the bottom of the rolling groove in a rolling mode can slide at the bottom of the arc-shaped plate when the arc-shaped plate is in contact with the rolling balls, potential energy is converted into kinetic energy, and vibration is further absorbed.
3. According to the anti-vibration device for bridge pile foundation construction, the screw rod is arranged at the top of the drill bit and limited through the steel casing, so that the position of the drill bit can be effectively limited, the drill bit is prevented from being shifted in the working process, and the accuracy of pile foundation drilling is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
FIG. 1 is a perspective view of a part of the structure of the anti-vibration device for bridge pile foundation construction according to the present invention;
FIG. 2 is a perspective view of a slider structure in the anti-vibration device for bridge pile foundation construction according to the present invention;
FIG. 3 is a perspective view of a steel casing structure in the anti-vibration device for bridge pile foundation construction according to the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 1 according to the present invention;
FIG. 5 is an enlarged view of the portion B of FIG. 1 according to the present invention.
The drawings are numbered as follows: 1 cushion pad, 2 support legs, 3 mounting plates, 4 sleeve seats, 5 pillars, 6 transverse plates, 7 drilling machines, 8 steel protective cylinders, 9 drill spindles, 10 lead screws, 11 action rods, 12 first springs, 13 arc-shaped plates, 14 fixing plates, 15 rolling grooves, 16 second springs, 17 rolling balls, 18 support plates, 19 connecting plates, 20 connecting plates, 21 sliding rods, 22 sliding blocks, 23 transverse columns, 24 cushion springs, 25 fixing blocks and 26 drill bits.
Detailed Description
The following is further detailed by way of specific embodiments:
the anti-vibration device for bridge pile foundation construction as shown in fig. 1-5 comprises a mounting plate 3, two sleeve seats 4 symmetrically arranged are fixedly mounted on the top of the mounting plate 3, pillars 5 are slidably mounted on the tops of the two sleeve seats 4, the top of each of the two pillars 5 is fixedly mounted with a horizontal plate 6, a drilling machine 7 is fixedly mounted on the bottom of the horizontal plate 6, the bottom of an output shaft of the drilling machine 7 penetrates through the top of the horizontal plate 6 and extends to the lower side of the horizontal plate 6, a drill bit 26 is fixedly mounted on the bottom of an output shaft of the drilling machine 7, a steel casing 8 is fixedly mounted on one side of the mounting plate 3, the bottom of the drill bit 26 penetrates through the top of the steel casing 8 and extends to the inside of the steel casing 8, a fixing plate 14 is fixedly mounted on the top of the steel casing 8, a rolling groove 15 is formed in the top of the fixing plate 14, a rolling ball 17 is rotatably mounted on the inner wall of the bottom of the rolling groove 15, an arc-shaped plate 13 can be separated from the top of the rolling ball 17, two supporting plates 18 which are symmetrically arranged are fixedly mounted at the top of the mounting plate 3, sliders 22 are mounted at the tops of the two supporting plates 18 in a sliding mode, cross columns 23 are fixedly mounted at the tops of the two supporting plates 18 in a sliding mode, and the two sliders 22 are connected with the two cross columns 23 in a sliding mode respectively.
In the invention, the four corners of the bottom of the mounting plate 3 are all fixedly provided with the supporting legs 2, the bottoms of the four supporting legs 2 are all fixedly provided with the cushion pads 1 placed on the ground surface, and the cushion pads 1 are arranged to improve the mounting stability of the mounting plate 3 and the supporting strength of the mounting plate 3.
According to the invention, the bottom of an output shaft of a drilling machine 7 is fixedly provided with a drilling shaft 9, the bottom of the drilling shaft 9 is fixedly provided with a screw rod 10, the bottom of the screw rod 10 penetrates through the top of a steel casing 8 and extends into the steel casing 8, the outer side of the screw rod 10 is in threaded connection with the inside of the steel casing 8, the bottom of the screw rod 10 is fixedly arranged with the top of a drill bit 26, and the screw rod 10 is matched with the steel casing 8 so as to effectively limit the position of the drill bit 26 and improve the accuracy of pile foundation drilling.
In the invention, action rods 11 are rotatably arranged on two sides of an arc-shaped plate 13, the tops of the two action rods 11 are respectively rotatably arranged with one side of a supporting column 5, two symmetrically arranged second springs 16 are fixedly arranged on the inner wall of the bottom of a rolling groove 15, the tops of the two second springs 16 are respectively fixedly arranged with the bottom of the arc-shaped plate 13, and the second springs 16 are arranged for buffering and absorbing vibration force in the pile foundation construction process.
In the invention, the top parts of two sleeve seats 4 are respectively provided with a sliding chute, the bottom parts of two pillars 5 respectively extend into the two sliding chutes and are respectively in sliding connection with the two sliding chutes, the top parts of the two sleeve seats 4 are respectively fixedly provided with a first spring 12, the two first springs 12 are respectively sleeved on the outer sides of the two pillars 5, and the top parts of the two first springs 12 are respectively fixedly arranged with the outer sides of the two pillars 5.
In the invention, connecting plates 19 are fixedly arranged on the sides, far away from each other, of the two pillars 5, connecting plates 20 are rotatably arranged at the bottoms of the two connecting plates 19, the two connecting plates 20 are arranged in a splayed shape, and the bottoms of the two connecting plates 20 are respectively rotatably connected with one sides of two sliding blocks 22.
In the invention, sliding rails are fixedly arranged at the tops of the two support plates 18, sliding rods 21 are slidably arranged at the tops of the two sliding rails, and the tops of the two sliding rods 21 are fixedly arranged at the bottoms of the two sliding blocks 22 respectively.
In the invention, the base is cylindrical, the ends of the two transverse columns 23 far away from each other are fixedly provided with the fixed blocks 25, the sides of the two fixed blocks 25 close to each other are fixedly provided with the buffer springs 24, the two buffer springs 24 are respectively sleeved on the outer sides of the two transverse columns 23, and the ends of the two buffer springs 24 close to each other are respectively fixedly arranged with the sides of the two sliding blocks 22 far away from each other.
In the invention, the fixed rods are fixedly arranged on one side of the top parts of the two support plates 18, and the top parts of the two fixed rods are respectively and fixedly arranged with the bottom parts of the two cross columns 23.
In the invention, two symmetrically arranged brackets are fixedly arranged at the top of the steel casing 8, the same transverse bar is fixedly arranged at the tops of the two brackets, the tops of the transverse bars and the bottom of the fixing plate 14 are fixedly arranged, and the transverse bar is arranged to improve the strength for installing the fixing plate 14.
The use method of the anti-vibration device for bridge pile foundation construction comprises the steps that when a drill bit 26 needs to be operated to drill a pile foundation, a drilling machine 7 is started, an output shaft of the drilling machine 7 can drive a drilling shaft 9 and a screw rod 10 to rotate, the drill bit 26 can rotate and descend at the same time through the threaded connection relation between the drilling shaft 9 and a steel casing 8, when the drilling machine 7 moves downwards, vibration and movement generated by the drilling machine 7 can act on a support post 5 to slide in a sliding groove, when the support post 5 moves downwards, a first spring 12 can be stressed to deform, vibration in the construction process is buffered and absorbed, a part of acting force applied to the support post 5 can act on a connecting plate 19 to move downwards, a connecting plate 20 arranged below the connecting plate 19 can provide acting forces opposite in transverse positions for two sliders 22, the two sliders 22 can slide in the transverse positions, and a buffer spring 24 is extruded to deform, further carry out the energy-absorbing to the vibrational force of 7 working processes on the rig, when two pillars 5 move down, can provide decurrent effort for arc 13 via two action bars 11 that set up, arc 13 moves down and extrudees two second springs 16, when the top contact of arc 13 and rolling ball 17, rolling ball 17 can slide on the bottom inner wall of fixed slot 15 along the bottom of arc 13 under the effect of arc 13, carry out the interconversion of potential energy and kinetic energy with the vibrational force that arc 13 received, carry out effectual consumption to the vibrational force, can prevent the vibration of pile foundation work progress, it is spacing to the position of drill bit 26 to utilize steel casing 8, prevent that drill bit 26 from taking place the skew of position in drilling process, can effectual improvement pile foundation drilling in-process precision.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (7)
1. The utility model provides a bridge pile foundation construction vibration preventing device, includes mounting panel (3), its characterized in that, the top fixed mounting of mounting panel (3) has two cover seats (4) that the symmetry set up, and the equal slidable mounting in top of two cover seats (4) has pillar (5), and the top fixed mounting of two pillar (5) has same diaphragm (6), the bottom fixed mounting of diaphragm (6) has rig (7), the bottom of rig (7) output shaft runs through the top of diaphragm (6) and extends to the below of diaphragm (6), the bottom fixed mounting of rig (7) output shaft has drill bit (26), one side fixed mounting of mounting panel (3) has steel to protect a section of thick bamboo (8), the bottom of drill bit (26) runs through the top of steel protects a section of thick bamboo (8) and extends to the inside of steel and protects a section of thick bamboo (8), the top fixed mounting of steel protects a section of thick bamboo (8) has fixed plate (14), the top of the fixed plate (14) is provided with a rolling groove (15), the inner wall of the bottom of the rolling groove (15) is provided with a rolling ball (17) in a rolling manner, the top of the rolling ball (17) can be separated from the rolling manner to be provided with an arc-shaped plate (13), the top of the mounting plate (3) is fixedly provided with two support plates (18) which are symmetrically arranged, the tops of the two support plates (18) are respectively provided with a sliding block (22) in a sliding manner, the tops of the two support plates (18) are respectively and fixedly provided with a cross column (23), the two sliding blocks (22) are respectively and slidably connected with the two cross columns (23), the bottom of an output shaft of the drilling machine (7) is fixedly provided with a drilling shaft (9), the bottom of the drilling shaft (9) is fixedly provided with a screw rod (10), the bottom of the screw rod (10) penetrates through the top of the steel casing (8) and extends into the steel casing (8), and the outer side of the screw rod (10) is connected with the inner thread of the steel casing (8), the bottom of lead screw (10) and the top fixed mounting of drill bit (26), the both sides of arc (13) are all rotated and are installed action bars (11), and the top of two action bars (11) rotates the installation with one side of pillar (5) respectively, fixed mounting has two second springs (16) that the symmetry set up on the bottom inner wall of roll groove (15), and the top of two second springs (16) all with the bottom fixed mounting of arc (13), the equal fixed mounting in one side that two pillars (5) kept away from each other has connecting plate (19), and the bottom of two connecting plates (19) all rotates and installs even board (20), and just two even board (20) are the splayed setting, and the bottom of two even board (20) rotates respectively with one side of two sliders (22) and is connected.
2. The anti-vibration device for bridge pile foundation construction according to claim 1, wherein the four corners of the bottom of the mounting plate (3) are fixedly provided with the legs (2), and the bottoms of the four legs (2) are fixedly provided with the cushion pads (1) placed on the ground surface.
3. The anti-vibration device for bridge pile foundation construction according to claim 1, wherein the top of each of the two sleeve seats (4) is provided with a sliding groove, the bottom of each of the two pillars (5) extends into the two sliding grooves and is slidably connected with the two sliding grooves, the top of each of the two sleeve seats (4) is fixedly provided with a first spring (12), the two first springs (12) are respectively sleeved on the outer sides of the two pillars (5), and the top of each of the two first springs (12) is fixedly connected with the outer sides of the two pillars (5).
4. The anti-vibration device for bridge pile foundation construction according to claim 1, wherein the top of each support plate (18) is fixedly provided with a slide rail, the top of each slide rail is slidably provided with a slide rod (21), and the top of each slide rod (21) is fixedly provided with the bottom of each slide block (22).
5. The anti-vibration device for bridge pile foundation construction according to claim 4, wherein the ends of the two transverse columns (23) far away from each other are fixedly provided with fixing blocks (25), the sides of the two fixing blocks (25) near each other are fixedly provided with buffer springs (24), the two buffer springs (24) are respectively sleeved on the outer sides of the two transverse columns (23), and the ends of the two buffer springs (24) near each other are respectively fixedly arranged with the sides of the two sliding blocks (22) far away from each other.
6. The anti-vibration device for bridge pile foundation construction according to claim 5, wherein the fixing rods are fixedly installed on one side of the top of each of the two support plates (18), and the top of each of the two fixing rods is fixedly installed on the bottom of each of the two cross columns (23).
7. The anti-vibration device for bridge pile foundation construction according to claim 3, wherein two symmetrically arranged brackets are fixedly arranged at the top of the steel casing (8), the same cross bar is fixedly arranged at the top of the two brackets, and the top of the cross bar and the bottom of the fixing plate (14) are fixedly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010829307.8A CN111963067B (en) | 2020-08-18 | 2020-08-18 | Anti-vibration device for bridge pile foundation construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829307.8A CN111963067B (en) | 2020-08-18 | 2020-08-18 | Anti-vibration device for bridge pile foundation construction |
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| CN111963067A CN111963067A (en) | 2020-11-20 |
| CN111963067B true CN111963067B (en) | 2022-06-14 |
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| CN112673754A (en) * | 2020-12-28 | 2021-04-20 | 福建亚太中润科技服务有限公司 | A tealeaves perforating device for tealeaves is planted |
| CN114673459B (en) * | 2022-05-27 | 2022-08-26 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Rock drilling device with buffer mechanism |
| CN115853425B (en) * | 2023-03-01 | 2023-05-12 | 中国电建集团山东电力建设第一工程有限公司 | Rock-soil hydraulic drilling equipment for civil construction |
| CN116971721B (en) * | 2023-09-06 | 2024-01-26 | 巨野县公路事业发展中心 | Drilling device for bridge construction |
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| US6412614B1 (en) * | 1999-09-20 | 2002-07-02 | Core Laboratories Canada Ltd. | Downhole shock absorber |
| CN101705722B (en) * | 2009-05-07 | 2011-12-28 | 上海英谷桥梁科技有限公司 | Damping and tensile support with double curved surface |
| CN104695323A (en) * | 2013-12-04 | 2015-06-10 | 汪穹立 | Bridge damping support |
| CN104088222A (en) * | 2014-06-10 | 2014-10-08 | 成都新筑展博环保科技有限公司 | Damping and shock insulating spherical fixing support |
| CN205276122U (en) * | 2016-01-04 | 2016-06-01 | 潘劲松 | Public road bridge roof beam buffering damping device |
| CN108119599A (en) * | 2017-11-16 | 2018-06-05 | 中国电力科学研究院有限公司 | A kind of zero-frequency swings earthquake isolating equipment |
| CN208232092U (en) * | 2018-04-23 | 2018-12-14 | 云南建投矿业工程有限公司 | A kind of nonferrous metal mine rock drilling dust protected rock boring device |
| CN209308641U (en) * | 2018-10-16 | 2019-08-27 | 费晓旭 | Drilling device is used in a kind of exploitation of surface mine |
| CN111218884A (en) * | 2018-11-26 | 2020-06-02 | 黎桃玲 | Novel road surface drilling device |
| CN109538116A (en) * | 2019-01-11 | 2019-03-29 | 杭州卓维机械有限公司 | A kind of mining ore punch device |
| CN209539261U (en) * | 2019-02-27 | 2019-10-25 | 李海艳 | A kind of drilling machine for building |
| CN209908396U (en) * | 2019-03-05 | 2020-01-07 | 李晓东 | Rock-soil drilling machine |
| CN109778827A (en) * | 2019-03-14 | 2019-05-21 | 安徽宏志建设工程有限责任公司 | A kind of reinforced soft soil ground equipment |
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