CN113089665A - High-stability piling construction device and construction method - Google Patents
High-stability piling construction device and construction method Download PDFInfo
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- CN113089665A CN113089665A CN202110509667.4A CN202110509667A CN113089665A CN 113089665 A CN113089665 A CN 113089665A CN 202110509667 A CN202110509667 A CN 202110509667A CN 113089665 A CN113089665 A CN 113089665A
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- piling
- main frame
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
- E02D7/16—Scaffolds or supports for drivers
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a high-stability piling construction device which comprises a main frame, wherein a guide plate is slidably connected inside the main frame, a piling column is fixedly connected to the middle part of the lower surface of the guide plate through a bolt, a buffer seat is welded on the upper side of the guide plate, a connecting column is arranged on the upper side of the buffer seat, auxiliary supporting seats are arranged on two sides of the lower end of the main frame, each auxiliary supporting seat comprises a supporting seat welded on the lower end of the main frame, a rotating screw cylinder rotatably arranged in the supporting seat through a bearing and a supporting screw screwed in the rotating screw cylinder, and the lower end of the supporting screw is fixedly connected with a screw rod; the main frame and the auxiliary supporting seat which are of circular structures are adopted for supporting, the main frame is inserted into the ground when piling is carried out, and the main frame and the auxiliary supporting seat are drilled into the ground for supporting through the supporting screw rod and the spiral rod on the auxiliary supporting seat, so that the device is more stably supported on the ground when in use, and the phenomenon of piling deviation is reduced.
Description
Technical Field
The invention relates to the technical field of highway construction, in particular to a high-stability piling construction device and a construction method.
Background
The highway engineering structure includes: roadbeds, pavements, bridges, culverts, tunnels, drainage systems, safety protection facilities, greening and traffic monitoring facilities, and houses, workshops and other service facilities used for construction, maintenance and monitoring. The pile driver is a piling machine which utilizes impact force to drive a pile into a stratum, is most common in the construction process of highway engineering, and has the main principle that a punching hammer and other high-weight metal parts are utilized to impact a punching column, and then the punching operation is carried out on the ground under the action of the punching column.
Patent number is 201811161145.4 discloses a soft soil highway base's quick pile construction machinery, its structure includes that the parallel bars are shaken hands, a main part, the drill bit, the main part is the cylinder structure, the main part bottom is equipped with the drill bit, the main part top relative with the drill bit is equipped with the parallel bars of two symmetries of each other and shakes hands, the parallel bars are shaken hands and are welded with the main part level, the main part mainly is drainage structure, soil cavity and casing are constituteed, casing and parallel bars are shaken hands the level and are fixed, the casing inner space is the soil cavity, the casing is equipped with inside and outside bilayer and inside and is.
When the conventional piling construction device is used, the pile is deviated due to unstable support during piling, or the device is deformed due to stress during piling, and the joint of the piling column is damaged due to repeated long-time stress, so that the problem needs to be solved by designing a high-stability piling construction device and a construction method.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, pile deflection occurs due to unstable support, or the device is stressed and deformed during pile driving, and the connection part of a pile driving column is damaged due to repeated long-time stress, and provides a high-stability pile driving construction device and a construction method.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a high stability pile construction equipment, includes the body frame, the inside sliding connection of body frame has the deflector, bolt fixedly connected with pile post is beaten at the lower surface middle part of deflector, the upside welding of deflector has the buffer seat, the upside of buffer seat is provided with the spliced pole, the lower extreme both sides of body frame are provided with auxiliary support seat, auxiliary support seat rotates the supporting seat of installing at the supporting seat is inside through the bearing and rotates the supporting screw who rotates the barrel and close soon rotating the inside barrel including welding at the body frame lower extreme, the lower extreme fixedly connected with hob of supporting screw, the upper end fixedly connected with transmission worm wheel of rotating the barrel, one side meshing of transmission worm wheel has drive worm, drive worm's one end fixedly connected with hand wheel.
Further, the dashpot has been seted up to the inside of dashpot, the upper end sliding connection of dashpot has the buffer board, the lower extreme of spliced pole passes the dashpot and passes through bolt fixed connection with the buffer board, the middle part fixedly connected with main spring of dashpot, the upper end and the buffer board of main spring pass through bolt fixed connection.
Further, the inboard bottom of dashpot and the lower surface of buffer board all are provided with the diversion ring, the inner wall fixedly connected with side spring of dashpot, the one end fixedly connected with diversion piece of side spring, the diversion piece is located between two diversion rings.
Furthermore, one side of the turning ring and two sides of the turning block are both provided with inclined planes, and balls are arranged on the inclined planes of the turning ring.
Furthermore, the outer side of the main spring is provided with a protective sleeve, and two ends of the protective sleeve are fixedly connected with the buffer board and the bottom of the buffer groove respectively.
Further, there are guide rails fixedly connected to the inner wall of the main frame through bolts, guide grooves are formed in two ends of the guide plate, and the guide plate is connected with the main frame in a sliding mode through the guide rails and the guide grooves.
Furthermore, one side of the guide rail is provided with an anti-abrasion ball, and the anti-abrasion ball clings to the inner wall of the guide groove.
Further, the pile driving column comprises an outer cylinder and an inner cylinder arranged inside the outer cylinder, and a supporting honeycomb column is filled between the outer cylinder and the inner cylinder.
A construction method of a high-stability piling construction device comprises the following steps:
s1, installing the main frame and the auxiliary supporting seat: the lower end of the main frame is arranged outside a position needing to be piled, the center position of the main frame is concentric with the piling position, then a hand wheel is rotated to drive a transmission worm to rotate, a transmission worm wheel is matched to drive a rotary screw cylinder to rotate, the rotary screw cylinder is matched with threads and a guide plate to drive a supporting screw rod to descend, and the supporting screw rod is convenient to insert into the ground through a screw rod;
s2, piling: the pile driving device is connected to the connecting column through the force application device, the connecting column, the guide plate and the pile driving column are lifted through the force application device when the pile driving device is used, and the pile driving column is rapidly descended to drive a pile hole through the cooperation of gravity and the pushing of the force application device;
s3, mounting the steel pipe pile: after pile holes are drilled, the main frame is detached, the steel pipe piles are installed in the pile holes and are righted, and finally concrete is poured and the like for fixing.
Further, when piling in S2, when the connecting column pushes the piling column to descend to the ground, the main spring is compressed through the buffer plate for buffering, and the direction changing ring is driven through the buffer plate to push the direction changing block to slide and compress the side spring for assisting buffering.
The invention has the beneficial effects that:
1. the main frame and the auxiliary supporting seat which are of circular structures are adopted for supporting, the main frame is inserted into the ground when piling is carried out, and the main frame and the auxiliary supporting seat are drilled into the ground for supporting through the supporting screw rod and the spiral rod on the auxiliary supporting seat, so that the device is more stably supported on the ground when in use, and the phenomenon of piling deviation is reduced.
2. Through spliced pole and the cushion socket of design, connect force applying device through the spliced pole when using, cushion through main spring and the side spring in the cushion socket when the spliced pole promotes the stake whereabouts of driving to reduce the tired nature damage that causes spliced pole and deflector junction.
3. Through the guided way and the guide way of design, lead to the deflector through guided way and guide way when the deflector slides, make the deflector slide from top to bottom more stably to better pile.
4. Through outer barrel, interior cylinder and the inside of supporting the honeycomb post of design, support the inside of barrel and interior cylinder outside through supporting the honeycomb post when using, weight reduction when guaranteeing pile driving intensity to make things convenient for force applying device to go up and down the pile driving to the pile driving post.
Drawings
Fig. 1 is a schematic structural diagram of a high-stability piling construction device and a construction method according to the present invention;
FIG. 2 is a schematic view of an auxiliary supporting seat structure of the high stability piling construction device and construction method of the present invention;
FIG. 3 is a schematic structural diagram of a buffer seat of the high stability piling construction device and construction method of the present invention;
fig. 4 is a schematic top view of the inner part of the main frame of the high-stability piling construction device and the construction method according to the present invention;
fig. 5 is a schematic cross-sectional structure view of a piling column of the high-stability piling construction device and the construction method provided by the invention.
In the figure: the honeycomb column comprises a main frame 1, a connecting column 2, a buffer seat 3, a guide plate 4, a pile driving column 5, an auxiliary support seat 6, a support seat 7, a hand wheel 8, a transmission worm wheel 9, a transmission worm 10, a rotation screw cylinder 11, a support screw rod 12, a screw rod 13, a buffer plate 14, a buffer groove 15, a main spring 16, a side spring 17, a turning block 18, a turning ring 19, a guide rail 20, a guide groove 21, an outer cylinder 22, an inner cylinder 23 and a support honeycomb column 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 5, a high stability pile driving construction device includes a main frame 1, a guide plate 4 is slidably connected inside the main frame 1, a pile driving post 5 is fixedly connected to the middle of the lower surface of the guide plate 4 through a bolt, a buffer seat 3 is welded to the upper side of the guide plate 4, a connection post 2 is disposed on the upper side of the buffer seat 3, auxiliary support seats 6 are disposed on both sides of the lower end of the main frame 1, each auxiliary support seat 6 includes a support seat 7 welded to the lower end of the main frame 1, a rotary screw cylinder 11 rotatably mounted inside the support seat 7 through a bearing, and a support screw 12 rotatably coupled inside the rotary screw cylinder 11, a screw rod 13 is fixedly connected to the lower end of the support screw rod 12, a transmission worm wheel 9 is fixedly connected to the upper end of the rotary screw cylinder 11, a transmission worm 10 is engaged to one side of the transmission worm wheel 9, a hand wheel 8 is fixedly connected to, the transmission of the transmission worm wheel 9 is matched to drive the rotary screw cylinder 11 to rotate, so that the rotary screw cylinder 11 is matched with the screw thread and the guide plate to drive the support screw 12 to descend and insert into the ground auxiliary support.
Furthermore, a buffer slot 15 is formed in the buffer base 3, a buffer plate 14 is slidably connected to the upper end of the buffer slot 15, the lower end of the connecting column 2 penetrates through the buffer base 3 and is fixedly connected with the buffer plate 14 through a bolt, a main spring 16 is fixedly connected to the middle of the buffer slot 15, the upper end of the main spring 16 is fixedly connected with the buffer plate 14 through a bolt, a protective sleeve is arranged on the outer side of the main spring 16, two ends of the protective sleeve are fixedly connected with the buffer plate 14 and the bottom of the buffer slot 15 respectively, turning rings 19 are arranged on the bottom of the inner side of the buffer slot 15 and the lower surface of the buffer plate 14, a side spring 17 is fixedly connected to the inner wall of the buffer slot 15, a turning block 18 is fixedly connected to one end of the side spring 17, the turning block 18 is located between the two turning rings 19, the main spring 16 is compressed through the buffer plate 14 for buffering, and the turning ring 19 is driven by the buffer, inclined surfaces are arranged on one side of the turning ring 19 and two sides of the turning block 18, and balls are arranged on the inclined surfaces of the turning ring 19.
Furthermore, the inner wall of the main frame 1 is fixedly connected with a guide rail 20 through a bolt, two ends of the guide plate 4 are provided with guide grooves 21, the guide plate 4 is slidably connected with the main frame 1 through the guide rail 20 and the guide grooves 21, one side of the guide rail 20 is provided with an anti-abrasion ball, the anti-abrasion ball is tightly attached to the inner wall of the guide groove 21, and the guide rail 20 and the guide grooves 21 guide the guide plate 4 when the guide plate 4 slides, so that the guide plate 4 slides up and down more stably.
Further, pile driving post 5 includes outer barrel 22 and installs the inside inner column body 23 at outer barrel 22, packs between outer barrel 22 and the inner column body 23 and supports honeycomb column 24, supports in the inside of outer barrel 22 and inner column body 23 through supporting honeycomb column 24, and weight reduction when guaranteeing pile driving post 5 intensity to make things convenient for force application device to carry out the lift pile driving to pile driving post 5.
A construction method of a high-stability piling construction device comprises the following steps:
s1, mounting the main frame 1 and the auxiliary supporting seat 6: the lower end of a main frame 1 is arranged outside a position needing to be piled, the center position of the main frame 1 is concentric with the piling position, then a hand wheel 8 is rotated to drive a transmission worm 10 to rotate, and a transmission worm wheel 9 is matched to drive a rotary screw barrel 11 to rotate, so that the rotary screw barrel 11 is matched with threads and a guide plate to drive a support screw 12 to descend, and the support screw 12 is convenient to insert into the ground through a screw rod 13;
s2, piling: the device is connected to a connecting column 2 through a force application device, when the device is used, the connecting column 2, a guide plate 4 and a piling column 5 are lifted through the force application device, the piling column 5 is rapidly descended to carry out pile drilling by matching gravity and pushing through the force application device, when the connecting column 2 pushes the piling column 5 to descend to the ground, a main spring 16 is compressed through a buffer plate 14 to carry out buffering, and a direction changing ring 19 is driven through the buffer plate 14 to push a direction changing block 18 to slide and a side spring 17 is compressed to carry out auxiliary buffering;
s3, mounting the steel pipe pile: after pile holes are drilled, the main frame 1 is detached, the steel pipe piles are installed in the pile holes and are righted, and finally concrete is poured and the like for fixing.
The working principle is as follows: installation body frame 1 and auxiliary supporting seat 6: the lower end of a main frame 1 is arranged outside a position needing to be piled, the center position of the main frame 1 is concentric with the piling position, then a hand wheel 8 is rotated to drive a transmission worm 10 to rotate, and a transmission worm wheel 9 is matched to drive a rotary screw barrel 11 to rotate, so that the rotary screw barrel 11 is matched with threads and a guide plate to drive a support screw 12 to descend, and the support screw 12 is convenient to insert into the ground through a screw rod 13; piling: the device is connected to a connecting column 2 through a force application device, when the device is used, the connecting column 2, a guide plate 4 and a piling column 5 are lifted through the force application device, the piling column 5 is rapidly descended to carry out pile drilling by matching gravity and pushing through the force application device, when the connecting column 2 pushes the piling column 5 to descend to the ground, a main spring 16 is compressed through a buffer plate 14 to carry out buffering, and a direction changing ring 19 is driven through the buffer plate 14 to push a direction changing block 18 to slide and a side spring 17 is compressed to carry out auxiliary buffering; installing the steel pipe pile: after pile holes are drilled, the main frame 1 is detached, the steel pipe piles are installed in the pile holes and are righted, and finally concrete and the like are poured for fixing
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The high-stability piling construction device is characterized by comprising a main frame (1), wherein a guide plate (4) is connected to the inner portion of the main frame (1) in a sliding mode, a piling column (5) is fixedly connected to the middle portion of the lower surface of the guide plate (4) through bolts, a buffer seat (3) is welded on the upper side of the guide plate (4), a connecting column (2) is arranged on the upper side of the buffer seat (3), auxiliary supporting seats (6) are arranged on two sides of the lower end of the main frame (1), each auxiliary supporting seat (6) comprises a supporting seat (7) welded to the lower end of the main frame (1), a rotating screw cylinder (11) installed inside the supporting seat (7) through rotation of a bearing and a supporting screw rod (12) screwed inside the rotating screw cylinder (11), a screw rod (13) is fixedly connected to the lower end of the supporting screw rod (12), and a transmission worm wheel (9) is fixedly connected to the upper end, one side of the transmission worm wheel (9) is meshed with a transmission worm (10), and one end of the transmission worm (10) is fixedly connected with a hand wheel (8).
2. The high-stability piling construction device according to claim 1, wherein a buffer groove (15) is formed in the buffer base (3), a buffer plate (14) is slidably connected to the upper end of the buffer groove (15), the lower end of the connecting column (2) penetrates through the buffer base (3) and is fixedly connected with the buffer plate (14) through bolts, a main spring (16) is fixedly connected to the middle of the buffer groove (15), and the upper end of the main spring (16) is fixedly connected with the buffer plate (14) through bolts.
3. A high stability piling construction device as recited in claim 2, wherein the inside bottom of the buffer slot (15) and the lower surface of the buffer plate (14) are provided with turning rings (19), the inner wall of the buffer slot (15) is fixedly connected with a side spring (17), one end of the side spring (17) is fixedly connected with a turning block (18), and the turning block (18) is located between two turning rings (19).
4. A high stability piling construction device as recited in claim 3, wherein one side of the direction changing ring (19) and both sides of the direction changing block (18) are provided with inclined surfaces, and the inclined surfaces of the direction changing ring (19) are provided with balls.
5. A high stability piling construction device as recited in claim 2, wherein the outside of said main spring (16) is provided with a protecting jacket, and both ends of the protecting jacket are fixedly connected with the bottom of the buffer plate (14) and the buffer groove (15), respectively.
6. The high-stability piling construction device according to claim 1, wherein a guide rail (20) is fixedly connected to the inner wall of the main frame (1) through bolts, guide grooves (21) are formed in two ends of the guide plate (4), and the guide plate (4) is slidably connected with the main frame (1) through the guide rail (20) and the guide grooves (21).
7. A high stability piling construction device according to claim 6 wherein said guide rail (20) is provided with an anti-wear ball on one side and the anti-wear ball is closely attached to the inner wall of the guide groove (21).
8. A high stability piling construction device as set forth in claim 1, wherein said piling column (5) comprises an outer cylinder (22) and an inner cylinder (23) installed inside the outer cylinder (22), and a supporting honeycomb column (24) is filled between the outer cylinder (22) and the inner cylinder (23).
9. A construction method of a high-stability piling construction device is characterized by comprising the following steps:
s1, mounting the main frame (1) and the auxiliary supporting seat (6): the lower end of a main frame (1) is arranged outside a position needing to be piled, the center position of the main frame (1) is concentric with the piling position, then a hand wheel (8) is rotated to drive a transmission worm (10) to rotate, a transmission worm gear (9) is matched to drive a rotation screw barrel (11) to rotate, the rotation screw barrel (11) is matched with threads and a guide plate to drive a support screw rod (12) to descend, and the support screw rod (12) is convenient to insert into the ground through a screw rod (13);
s2, piling: the pile driving device is connected to the connecting column (2) through the force application device, the connecting column (2), the guide plate (4) and the pile driving column (5) are lifted through the force application device when the pile driving device is used, and the pile driving column (5) is rapidly descended to drive a pile hole through the cooperation of gravity and the pushing of the force application device;
s3, mounting the steel pipe pile: after pile holes are drilled, the main frame (1) is detached, the steel pipe piles are installed in the pile holes and are righted, and finally concrete is poured and the like for fixing.
10. The construction method of the high-stability piling construction device according to the claim 9, wherein when piling is performed in the step S2, the connecting column (2) pushes the piling column (5) to descend to the ground, the buffer plate (14) compresses the main spring (16) for buffering, and the buffer plate (14) drives the direction changing ring (19) to push the direction changing block (18) to slide and compress the side spring (17) for auxiliary buffering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509667.4A CN113089665A (en) | 2021-05-11 | 2021-05-11 | High-stability piling construction device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509667.4A CN113089665A (en) | 2021-05-11 | 2021-05-11 | High-stability piling construction device and construction method |
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| CN113089665A true CN113089665A (en) | 2021-07-09 |
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| CN202110509667.4A Pending CN113089665A (en) | 2021-05-11 | 2021-05-11 | High-stability piling construction device and construction method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339404A (en) * | 2018-10-16 | 2019-02-15 | 章志尚 | A kind of buffering upright elevating mechanism |
| CN211285598U (en) * | 2019-10-01 | 2020-08-18 | 张清聪 | Construction pile driving device that stability is good |
| CN212061444U (en) * | 2020-05-28 | 2020-12-01 | 宜宾迈进计算机科技有限责任公司 | Outdoor signal indicator lamp |
-
2021
- 2021-05-11 CN CN202110509667.4A patent/CN113089665A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339404A (en) * | 2018-10-16 | 2019-02-15 | 章志尚 | A kind of buffering upright elevating mechanism |
| CN211285598U (en) * | 2019-10-01 | 2020-08-18 | 张清聪 | Construction pile driving device that stability is good |
| CN212061444U (en) * | 2020-05-28 | 2020-12-01 | 宜宾迈进计算机科技有限责任公司 | Outdoor signal indicator lamp |
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Application publication date: 20210709 |
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