CN214403438U - Drilling and reaming integrated device for anchoring hole - Google Patents
Drilling and reaming integrated device for anchoring hole Download PDFInfo
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- CN214403438U CN214403438U CN202022437036.XU CN202022437036U CN214403438U CN 214403438 U CN214403438 U CN 214403438U CN 202022437036 U CN202022437036 U CN 202022437036U CN 214403438 U CN214403438 U CN 214403438U
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Abstract
The utility model provides an anchoring hole drilling and reaming integrated device, which comprises an adjusting component and a drilling and reaming component; the adjusting assembly comprises a first cylinder, a plurality of drill rod standard sections and a plurality of pull rods, wherein an adjusting device for adjusting the pull rods to move up and down is arranged in the first cylinder; bore and expand the subassembly, including the second barrel, connecting rod and the voussoir that resets, the top of second barrel is connected with the drilling rod standard festival of adjusting part bottommost, and the bottom of second barrel is connected with the drill bit, and the connecting rod setting is in the second barrel, and can follow second barrel axial direction and reciprocate, and the upper end of connecting rod is connected with the pull rod of adjusting part bottommost, and the lower extreme fixedly connected with of connecting rod resets the voussoir, and it has a plurality of reaming blades to hinge in the second barrel periphery wall that the voussoir that resets corresponds. The utility model discloses after drilling is accomplished, need not to dial out the installation that carries out the reaming blade with whole device from drilling, through drilling and the direct reaming one process of reaming behind the reaming twice process optimization one, improved the efficiency of construction.
Description
Technical Field
The utility model relates to a rock mass engineering anchor technical field especially relates to an anchor hole drilling reaming integral type device.
Background
The rock anchor rod obtains demand and application in many fields, and the anchor hole construction of rock anchor rod generally adopts down-the-hole drill, and the bottom needs the reaming after drilling earlier, and in order to reach the rock anchor design demand, this hole enlargement value generally is several times of drilling. The rock anchor rod hole is very deep, reach tens meters, normally construct first with the drilling rod drilling, later take out the drilling rod, change the reaming blade and ream, because the drilling depth reaches more than ten meters, it is very loaded down with trivial details to trade the reaming blade process, seriously delays construction progress.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an anchor hole drilling reaming integral type device can directly carry out the reaming process after realizing the drilling process, need not to take out the drilling rod and change dress reaming blade, has improved the efficiency of construction.
The technical scheme of the utility model is realized like this: the utility model provides an anchoring hole drilling and reaming integrated device, which comprises an adjusting component and a drilling and reaming component which are connected up and down; wherein the content of the first and second substances,
the adjusting assembly comprises a first barrel, a plurality of standard drill rod sections and a plurality of pull rods, wherein the top end of the first barrel is used for being connected with a down-the-hole drill, the plurality of standard drill rod sections are sequentially detachably connected to the bottom end of the first barrel, the plurality of pull rods are sequentially detachably connected and vertically arranged in the first barrel and the standard drill rod sections, and an adjusting device for adjusting the pull rods to move up and down is arranged in the first barrel;
the drilling and expanding assembly comprises a second cylinder, a connecting rod and a reset wedge block, wherein the top end of the second cylinder is connected with the drill rod standard joint at the bottommost part of the adjusting assembly, the bottom end of the second cylinder is connected with a drill bit, the connecting rod is arranged in the second cylinder and can move up and down along the axial direction of the second cylinder, the upper end of the connecting rod is connected with a pull rod at the bottommost part of the adjusting assembly, the lower end of the connecting rod is fixedly connected with the reset wedge block, and a plurality of reaming blades are hinged in the outer peripheral wall of the second cylinder corresponding to the reset wedge block;
when the connecting rod moves upwards, the reset wedge block drives the reaming blade to be unfolded along the peripheral wall of the second cylinder, and when the connecting rod moves downwards, the reset wedge block drives the reaming blade to be folded in towards the second cylinder.
On the basis of the technical scheme, preferably, be provided with open-top's first drum chamber in the first barrel, adjusting device sets up at first drum intracavity, adjusting device includes first spring, adjusting nut and clamp plate, the bottom of first spring and the bottom surface fixed connection in first drum chamber, and first spring housing establishes on the pull rod, and adjusting nut and clamp plate down set gradually on the top of first spring from last, adjusting nut and pull rod threaded connection.
On the basis of the technical scheme, preferably, a second cylinder cavity is arranged in the second cylinder, an upper guide sealing plate is arranged at the top end of the second cylinder, the connecting rod is arranged in the second cylinder cavity, the top end of the connecting rod penetrates through the guide plate to be connected with the pull rod, an annular limiting plate is arranged on the inner wall of the second cylinder cavity, and a second spring is sleeved on the connecting rod between the annular limiting plate and the reset wedge block.
Further, it is preferred, be provided with on the second barrel periphery wall that the voussoir that resets corresponds and be used for holding the holding tank of reaming blade, the top and the holding tank upper end hinge joint of reaming blade.
Further, it is preferred that one side lower extreme of reaming blade orientation reset voussoir is provided with the bellying, reset voussoir periphery wall lower extreme is provided with and is used for the depressed part with bellying complex, reset voussoir periphery wall upper end is provided with the inclined plane with reaming blade top matched with.
Further, preferably, a plurality of the reaming blades are arranged around the central axis of the second cylinder body at equal intervals.
Preferably, the bottom of second barrel is provided with down the direction closing plate, the connecting rod passes down the direction closing plate and to extending in the drill bit, be provided with in the connecting rod and be used for carrying out the air feed pipeline of air feed to the drill bit.
The utility model discloses following beneficial effect has for prior art:
(1) the utility model discloses an anchor hole drilling reaming integral type device according to the drilling depth, connects a plurality of drilling rod standard festival in first barrel bottom, can adjust whole adjusting part's length, links to each other with the down-the-hole drill through the adjusting part upper end, and adjusting part's lower extreme links to each other with boring the reaming subassembly, can satisfy different degree of depth drilling demands. When drilling, adjust the pull rod downstream through adjusting device, and then drive the connecting rod at the second barrel downstream, the connecting rod orders about the voussoir that resets and moves down, the voussoir that resets orders about the reaming blade and draws in towards the second barrel in, make the device under the down-the-hole drill drive, implement the drilling process, accomplish drilling process back, adjust the pull rod upstream through adjusting device, and then drive the connecting rod at the second barrel upstream, the connecting rod orders about the voussoir that resets and moves up, the voussoir that resets orders about the reaming blade and struts along the second barrel periphery wall, drill drive arrangement is rotatory, thereby implement the reaming process. Compared with the prior art, the utility model discloses after drilling is accomplished, need not to dial out whole device from drilling and carry out the installation of reaming blade, through drilling and the direct reaming one process of reaming behind the reaming twice process optimization one becomes drilling, improved the efficiency of construction.
(2) The utility model discloses an adjusting device sets up in first barrel, when carrying out the reaming operation, only need to dismantle the separation back with first barrel and down-the-hole drill, through the rotation regulation nut, implement the compression in-process to first spring, drive the pull rod and upwards remove, thereby realize the connecting rod rebound, the voussoir periphery wall lower extreme that resets is provided with be used for with the bellying complex depressed part on the reaming blade, from this, the voussoir that resets can order about the reaming blade at the rebound in-process and strut in order to implement the reaming operation, this adjusting device simple structure, and convenient operation, and is easy to use and practical.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural schematic diagram of the state of the anchoring hole drilling and reaming integrated device during drilling and reaming of the utility model;
fig. 2 is a schematic structural view of the state of the anchoring hole drilling and reaming integrated device disclosed by the utility model during reaming;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
fig. 4 is a partially enlarged view of fig. 2 at B.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in figure 1, combine figure 2, the embodiment of the utility model discloses anchor hole drilling reaming integral type device, including the adjusting part 1 and the brill subassembly 2 that expands of connecting from top to bottom.
Wherein, adjusting component 1 is used for driving brill and expands subassembly 2 and stretch into the anchor hole, and provides the depth support for brill and expand subassembly 2 in the anchor hole. The drill rod comprises a first cylinder body 11, a plurality of drill rod standard sections 12 and a plurality of pull rods 13, wherein the first cylinder body 11 is cylindrical, a standard threaded connector is arranged at the top end of the first cylinder body and used for being connected with a down-the-hole drill, and rotation and pressing power is applied through the down-the-hole drill. Because the design degree of depth of rock anchor eye is very deep, need install the drilling rod standard festival 12 of different quantity as required in drilling process, these drilling rod standard festival 12 can dismantle the bottom of connecting at first barrel 11 in order to guarantee that adjusting part 1 drives the completion that bores and expand the subassembly 2 and can be smooth and bore and expand the operation under the prerequisite that satisfies the length requirement. According to the length of the whole adjusting assembly 1, a corresponding number of pull rods 13 are selected, the pull rods 13 are sequentially detachably connected, the whole pull rods 13 are vertically arranged in the first cylinder 11 and the standard drill rod section 12, and an adjusting device 14 for adjusting the pull rods 13 to move up and down is arranged in the first cylinder 11.
As the prior art, the standard drill rod sections 12 are connected in a threaded screwing mode, the pull rods 13 are connected in a threaded screwing mode, and the standard drill rod sections 12 are internally provided with through holes, so that the pull rods 13 can be conveniently inserted.
And the drilling and reaming assembly 2 is used for completing drilling and reaming operations in the anchoring hole. Specifically, bore and expand subassembly 2 and include second barrel 21, connecting rod 22 and reset wedge 23, the top of second barrel 21 is connected with the drilling rod standard festival 12 of adjusting part 1 bottommost, the bottom of second barrel 21 is connected with drill bit 24, connecting rod 22 sets up in second barrel 21, and can follow second barrel 21 axial direction and reciprocate, the upper end of connecting rod 22 is connected with adjusting part 1 bottommost pull rod 13, the lower extreme fixedly connected with of connecting rod 22 resets wedge 23, it has a plurality of reaming blades 25 to articulate in the second barrel 21 periphery wall that reset wedge 23 corresponds.
By adopting the technical scheme, according to the drilling depth, the bottom end of the first barrel 11 is connected with the plurality of drill rod standard sections 12, the length of the whole adjusting assembly 1 can be adjusted, the upper end of the adjusting assembly 1 is connected with a down-the-hole drilling machine, the lower end of the adjusting assembly 1 is connected with the drilling and expanding assembly 2, and the drilling requirements of different depths can be met. During drilling, the adjusting device 14 is used for adjusting the pull rod 13 to move downwards, the connecting rod 22 is further driven to move downwards in the second cylinder 21, the connecting rod 22 drives the reset wedge block 23 to move downwards, the reset wedge block 23 drives the reaming blade 25 to be folded towards the inside of the second cylinder 21, the device is driven by a down-the-hole drill to implement a drilling process, after the drilling process is completed, the adjusting device 14 is used for adjusting the pull rod 13 to move upwards, the connecting rod 22 is further driven to move upwards in the second cylinder 21, the connecting rod 22 drives the reset wedge block 23 to move upwards, the reset wedge block 23 drives the reaming blade 25 to be unfolded along the outer peripheral wall of the second cylinder 21, and therefore the reaming process is implemented. Compared with the prior art, the utility model discloses after drilling is accomplished, need not to dial out whole device from drilling and carry out the installation of reaming blade 25, through drilling and the direct reaming one process of reaming behind the reaming twice process optimization one becomes drilling, improved the efficiency of construction.
Specifically, the utility model discloses still realize through following technical scheme.
In order to adjust reaming blade 25 and open at the reaming in-process, can utilize adjusting device 14, the utility model discloses a technical scheme be: a first cylinder cavity 111 with an open top is arranged in the first cylinder 11, the adjusting device 14 is arranged in the first cylinder cavity 111, the adjusting device 14 includes a first spring 141, an adjusting nut 142 and a pressing plate 143, the bottom end of the first spring 141 is fixedly connected with the bottom surface of the first cylinder cavity 111, the first spring 141 is sleeved on the pull rod 13, the adjusting nut 142 and the pressing plate 143 are sequentially arranged on the top end of the first spring 141 from top to bottom, and the adjusting nut 142 is in threaded connection with the pull rod 13. Therefore, by adopting the technical scheme, when the reaming operation is carried out, only the first cylinder 11 and the down-the-hole drill are required to be detached and separated, the adjusting nut 142 is rotated to compress the first spring 141 through the pressing plate 143, meanwhile, the adjusting nut 142 drives the pull rod 13 to rotate and move upwards in the rotating process, so that the connecting rod 22 moves upwards, the connecting rod 22 drives the reset wedge block 23 to move upwards, and the reset wedge block 23 drives the reaming blade 25 to be propped open along the outer peripheral wall of the second cylinder 21.
When the drilling process is performed, the reaming blades 25 need to be prevented from being spread, so that the reaming blades 25 and the second cylinder 21 are kept closed, and under the action of the adjusting device 14, the embodiment further cooperates with the following technical scheme, so that the closing of the reaming blades 25 is realized. Referring to the attached figures 3 and 4, the specific scheme is as follows: a second cylinder cavity 211 is arranged in the second cylinder 21, an upper guide sealing plate 212 is arranged at the top end of the second cylinder 21, the connecting rod 22 is arranged in the second cylinder cavity 211, the top end of the connecting rod passes through the upper guide sealing plate 212 to be connected with the pull rod 13, an annular limiting plate 213 is arranged on the inner wall of the second cylinder cavity 211, and a second spring 214 is sleeved on the connecting rod 22 between the annular limiting plate 213 and the reset wedge 23. By adopting the technical scheme, the first spring 141 is restored to the free length by reversely rotating the adjusting nut 142, the adjusting nut 142 drives the pull rod 13 to move downwards, the pull rod 13 drives the connecting rod 22 to move downwards, and the reset wedge block 23 is used for pushing the reaming blade 25 to fold. After the first spring 141 completely recovers the free deformation length, the adjusting nut 142 and the first spring 141 do not generate an extrusion force, at this time, the first spring 141 is in a free extension state, the whole body formed by the adjusting nut 142, the pull rod 13 and the connecting rod 22 is easy to move up and down along the axial direction of the device, so that the reset wedge 23 cannot drive the reaming blade 25 to be effectively folded, in this embodiment, by arranging the second spring 214, after the first spring 141 is adjusted by the adjusting nut 142 and recovers the free length, the second spring 214 pushes the reset wedge 23 to move down due to the self elastic force, so that the reaming blade 25 can be effectively folded.
Note that the elastic force of the second spring 214 is smaller than the elastic force of the first spring 141.
In this embodiment, the outer circumferential wall of the second cylinder 21 corresponding to the reset wedge 23 is provided with a receiving groove 216 for receiving the reamer blade 25, and the top end of the reamer blade 25 is hinged to the upper end of the receiving groove 216. Therefore, under the driving of the reset wedge 23, the reaming blades 25 can be unfolded outwards in an umbrella shape from the accommodating groove 216, and meanwhile, the reaming blades 25 enter the accommodating groove 216 after being folded, so that the reaming blades 25 and the second cylinder 21 are integrated.
In this embodiment, the lower end of the side of the reamer blade 25 facing the reset wedge 23 is provided with a protrusion 251, the lower end of the outer peripheral wall of the reset wedge 23 is provided with a recess 231 for engaging with the protrusion 251, and the upper end of the outer peripheral wall of the reset wedge 23 is provided with an inclined surface 232 for engaging with the top of the reamer blade 25. By adopting the above technical scheme, when the reaming blade 25 is required to be unfolded, the resetting wedge 23 moves upwards, the recess 231 at the lower end of the resetting wedge 23 pushes the boss 251 at the lower end of the reaming blade 25 to move upwards, and meanwhile, the top end of the reaming blade 25 rotates outwards around the accommodating groove 216, so that the reaming blade 25 is unfolded. When the reaming blade 25 needs to be folded, the reset wedge 23 moves downwards, the inclined surface 232 at the upper end of the reset wedge 23 pushes the top of the reaming blade 25, and the reaming blade 25 rotates inwards around the accommodating groove 216 under the action of thrust, so that the reaming blade 25 is folded with the second cylinder 21.
Preferably, the plurality of reamer blades 25 are equally spaced about the central axis of the second cylinder 21. Therefore, after the reaming blades 25 are unfolded in an umbrella shape, under the rotation matching of the down-the-hole drill, reaming can be quickly and efficiently carried out.
Preferably, the bottom end of the second cylinder 21 is provided with a lower guide sealing plate 215, and the connection rod 22 passes through the lower guide sealing plate 215 and extends inward of the drill bit 24. By adopting the technical scheme, the top end and the bottom end of the second cylinder 21 are respectively provided with the upper guide sealing plate 212 and the lower guide sealing plate 215, so that the connecting rod 22 can be guided by the upper guide sealing plate 212 and the lower guide sealing plate 215 when moving up and down, and the connecting rod 22 can be ensured to move stably and smoothly on the central axis. A gas supply line for supplying gas to the drill bit 24 is provided in the connecting rod 22, thereby facilitating the supply of high-pressure gas to the drill bit 24 through the gas supply line when the drill bit 24 drills a hole.
The utility model discloses a theory of operation is:
the first cylinder 11 is installed on a down-the-hole drill, a certain number of drill rod standard joints 12 and pull rods 13 are connected between the first cylinder 11 and the second cylinder 21 at intervals according to the drilling depth, so that the length requirement of the whole device is met, the adjusting nut 142 is rotated until the first spring 141 is in a free extension state in an initial state, the reset wedge 23 pushes the reaming blade 25 to be folded with the second cylinder 21 under the action of the elastic force of the second spring 214, and the whole device implements an anchoring hole drilling process. After the drilling hole reaches the designed depth, the first cylinder 11 is separated from the down-the-hole drill, the adjusting nut 142 is rotated, the adjusting nut 142 compresses the first spring 141 through the pressing plate 143, meanwhile, the adjusting nut 142 drives the pull rod 13 to rotate and move upwards in the rotating process, so that the connecting rod 22 moves upwards, the connecting rod 22 drives the reset wedge 23 to move upwards, the concave part 231 at the lower end of the reset wedge 23 pushes the convex part 251 at the lower end of the chambering blade 25 to move upwards, meanwhile, the top end of the chambering blade 25 rotates outwards around the accommodating groove 216, and the chambering blade 25 is opened. And then the first cylinder 11 is installed on a down-the-hole drill to further implement a hole expanding process, after hole expansion is finished, the first cylinder 11 is separated from the down-the-hole drill, the adjusting nut 142 is rotated reversely to enable the first spring 141 to recover the free length, the second spring 214 pushes the reset wedge 23 to move downwards due to the elastic force of the second spring, the inclined surface 232 at the upper end of the reset wedge 23 pushes the top of the hole expanding blade 25, the hole expanding blade 25 is folded with the second cylinder 21 under the action of thrust, and therefore the whole device is taken out of the anchoring hole, and finally the hole drilling and expanding process is finished.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Anchor hole drilling reaming integral type device, its characterized in that: comprises an adjusting component (1) and a drilling and expanding component (2) which are connected up and down; wherein the content of the first and second substances,
the adjusting assembly (1) comprises a first barrel (11), a plurality of drill rod standard sections (12) and a plurality of pull rods (13), wherein the top end of the first barrel (11) is used for being connected with a down-the-hole drill, the drill rod standard sections (12) are sequentially detachably connected to the bottom end of the first barrel (11), the pull rods (13) are sequentially detachably connected and vertically arranged in the first barrel (11) and the drill rod standard sections (12), and an adjusting device (14) for adjusting the pull rods (13) to move up and down is arranged in the first barrel (11);
the drilling and expanding assembly (2) comprises a second cylinder (21), a connecting rod (22) and a reset wedge block (23), the top end of the second cylinder (21) is connected with a drill rod standard joint (12) at the bottommost part of the adjusting assembly (1), the bottom end of the second cylinder (21) is connected with a drill bit (24), the connecting rod (22) is arranged in the second cylinder (21) and can move up and down along the axial direction of the second cylinder (21), the upper end of the connecting rod (22) is connected with a pull rod (13) at the bottommost part of the adjusting assembly (1), the lower end of the connecting rod (22) is fixedly connected with the reset wedge block (23), and a plurality of reaming blades (25) are hinged into the peripheral wall of the second cylinder (21) corresponding to the reset wedge block (23);
when the connecting rod (22) moves upwards, the reset wedge block (23) drives the reaming blade (25) to be unfolded along the peripheral wall of the second cylinder body (21), and when the connecting rod (22) moves downwards, the reset wedge block (23) drives the reaming blade (25) to be folded towards the inside of the second cylinder body (21).
2. The integrated anchorage hole drilling and reaming device according to claim 1, wherein: be provided with open-top's first cylinder chamber (111) in first barrel (11), adjusting device (14) set up in first cylinder chamber (111), adjusting device (14) include first spring (141), adjusting nut (142) and clamp plate (143), the bottom of first spring (141) and the bottom surface fixed connection in first cylinder chamber (111), and first spring (141) cover is established on pull rod (13), and adjusting nut (142) and clamp plate (143) are from last down setting gradually on the top of first spring (141), adjusting nut (142) and pull rod (13) threaded connection.
3. The integrated anchorage hole drilling and reaming device according to claim 1, wherein: be provided with second cylinder chamber (211) in second barrel (21), the top of second barrel (21) is provided with direction sealing plate (212), connecting rod (22) set up in second cylinder chamber (211), and its top is passed and is led sealing plate (212) and be connected with pull rod (13), is provided with ring limiting plate (213) on second cylinder chamber (211) inner wall, cup jointed second spring (214) on connecting rod (22) at place between ring limiting plate (213) and the voussoir that resets (23).
4. The integrated anchorage hole drilling and reaming device according to claim 3, wherein: the reset wedge block (23) is arranged on the outer peripheral wall of the second barrel body (21) corresponding to the reset wedge block and used for containing the containing groove (216) of the chambering blade (25), and the top end of the chambering blade (25) is hinged to the upper end of the containing groove (216).
5. The integrated anchorage hole drilling and reaming device according to claim 4, wherein: reaming blade (25) are provided with bellying (251) towards one side lower extreme that resets voussoir (23), reset voussoir (23) periphery wall lower extreme is provided with and is used for depressed part (231) with bellying (251) matched with, reset voussoir (23) periphery wall upper end is provided with and reams blade (25) top matched with inclined plane (232).
6. The integrated anchorage hole drilling and reaming device according to claim 5, wherein: and the reaming blades (25) are arranged around the central axis of the second cylinder body (21) at equal intervals.
7. The integrated anchorage hole drilling and reaming device according to claim 3, wherein: the bottom of second barrel (21) is provided with down and leads sealing plate (215), connecting rod (22) pass down lead sealing plate and extend to drill bit (24) in, be provided with in connecting rod (22) and be used for carrying out the air feed pipeline of air feed to drill bit (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437036.XU CN214403438U (en) | 2020-10-28 | 2020-10-28 | Drilling and reaming integrated device for anchoring hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437036.XU CN214403438U (en) | 2020-10-28 | 2020-10-28 | Drilling and reaming integrated device for anchoring hole |
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| CN214403438U true CN214403438U (en) | 2021-10-15 |
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| CN202022437036.XU Active CN214403438U (en) | 2020-10-28 | 2020-10-28 | Drilling and reaming integrated device for anchoring hole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197506A (en) * | 2022-01-18 | 2022-03-18 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Protection device for prevent that side slope engineering lattice beam formwork frame from droing |
-
2020
- 2020-10-28 CN CN202022437036.XU patent/CN214403438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197506A (en) * | 2022-01-18 | 2022-03-18 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Protection device for prevent that side slope engineering lattice beam formwork frame from droing |
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| CB03 | Change of inventor or designer information |
Inventor after: Gao Zuoping Inventor after: Zhou Zhiyong Inventor after: Sun Lei Inventor after: Liao Jiehong Inventor after: Li Zhiqiang Inventor before: Cheng Haihua Inventor before: Gao Zuoping Inventor before: Zhou Zhiyong Inventor before: Liao Jiehong Inventor before: Li Zhiqiang |
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| CB03 | Change of inventor or designer information | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jucheng scientific research building, No.4, wudayuan Road, Wuda Science Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee after: Wuhan Jucheng Structure Group Co.,Ltd. Address before: Jucheng scientific research building, No.4, wudayuan Road, Wuda Science Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee before: WUDA JUCHENG STRUCTURE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |