CN210890736U - A installation device for underground tunnel positioning equipment - Google Patents

A installation device for underground tunnel positioning equipment Download PDF

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Publication number
CN210890736U
CN210890736U CN201921984225.XU CN201921984225U CN210890736U CN 210890736 U CN210890736 U CN 210890736U CN 201921984225 U CN201921984225 U CN 201921984225U CN 210890736 U CN210890736 U CN 210890736U
Authority
CN
China
Prior art keywords
hole
mounting
frame body
underground tunnel
limiting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201921984225.XU
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Chinese (zh)
Inventor
唐茂颖
朱忠平
李桂林
林开盛
钟为
焦雨起
刘金飞
钟维明
张竣朝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PowerChina Chengdu Engineering Co Ltd
Guodian Dadu River Hydropower Development Co Ltd
Original Assignee
PowerChina Chengdu Engineering Co Ltd
Guodian Dadu River Hydropower Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PowerChina Chengdu Engineering Co Ltd, Guodian Dadu River Hydropower Development Co Ltd filed Critical PowerChina Chengdu Engineering Co Ltd
Priority to CN201921984225.XU priority Critical patent/CN210890736U/en
Application granted granted Critical
Publication of CN210890736U publication Critical patent/CN210890736U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an installation device for underground tunnel positioning equipment, which comprises a frame body and an auxiliary installation frame arranged in the frame body; the frame body comprises a pair of oppositely arranged cross beams and a pair of longitudinal beams respectively connected with the cross beams, anchoring holes for hanging are formed in the cross beams, upper supports and lower supports are arranged on the longitudinal beams at intervals in the vertical direction, the upper supports and the lower supports are respectively hinged to the longitudinal beams, and the upper supports are movably connected with the lower supports so as to adjust the included angle of the upper supports relative to the frame body. Through above-mentioned technical scheme, not only be convenient for install positioning device on supplementary mounting bracket, can also guarantee the stability of positioning device position to the realization is to constructor, the machinery in the tunnel carry out the location control, and accurately makes statistics of the quantity of constructor and vehicle in the tunnel. Therefore, the problems of poor stability, insecure installation and harsh external installation conditions of the positioning equipment in the prior art are solved.

Description

A installation device for underground tunnel positioning equipment
Technical Field
The utility model relates to a tunnel engineering construction equipment technical field, concretely relates to installation device for underground tunnel positioning equipment.
Background
In tunnel construction, often adopt location technologies such as no carrier communication technique (UWB), radio frequency identification communication technique (RFID) to carry out positioning monitoring to constructor, machinery in the tunnel to the construction safety of constructor vehicle is ensured in discernment personnel and the position of machinery, the statistics tunnel. These positioning devices are typically secured to the tunnel wall by screw holes in the device protection case housing. However, this mounting method has the following problems:
(1) in the construction process, the tunnel wall is uneven due to geological conditions, construction process and the like, the unevenness degree can reach 10 cm-100 cm, and a proper installation position is often difficult to find or the installation is not firm.
(2) Positioning equipment such as UWB (ultra Wide band) is required to be installed vertically as much as possible and equidistantly, and the conventional equipment with a back plate is difficult to be installed on an uneven hole wall regularly.
(3) The tunnel construction often adopts the drilling and blasting method construction, and the nearer positioning device of operation face apart from blasting probably is because the destruction of flying stone, blasting shock wave etc. during the blasting, and the steadiness of installation is difficult to guarantee to common mounting means.
(4) Positioning device often uses with power supply box, network equipment (switch, wireless AP etc.) cooperation, and the equipment adopts the installation backplate of equipment self-bring to install respectively when more, and installation work load is big, consuming time is long.
To the problems of poor stability, insecurity in installation and large installation workload of the positioning equipment in the prior art, a more reasonable technical scheme needs to be provided to solve the technical problems existing at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides an installation device for underground tunnel positioning equipment to solve the positioning equipment poor stability that exists among the prior art, install insecure, to the harsh problem of installation condition requirement.
In order to realize the above effect, the utility model discloses a technical scheme does:
a mounting device for underground tunnel positioning equipment comprises a frame body provided with a mounting part and an auxiliary mounting frame arranged in the frame body; the frame body comprises a pair of oppositely arranged cross beams and a pair of longitudinal beams respectively connected with the cross beams, anchoring holes for hanging are formed in the cross beams, upper supports and lower supports are arranged on the longitudinal beams at intervals in the vertical direction, the upper supports and the lower supports are respectively hinged to the longitudinal beams, and the upper supports are movably connected with the lower supports so as to adjust the included angle of the upper supports relative to the frame body.
Optionally, a threaded hole is formed in the end of the upper support, an adjusting groove is formed in the lower support, the adjusting groove extends along the length direction of the lower support, a through hole is formed in the bottom of the adjusting groove, and the width of the through hole is larger than the aperture of the threaded hole and smaller than the outer diameter of the upper support, so that the end of the upper support can abut against the groove wall of the adjusting groove;
the mounting device further comprises a screw rod matched with the threaded hole, and the screw rod penetrates through the through hole and is matched with the threaded hole, so that the screw rod is abutted against the lower support to keep the position of the upper support.
Optionally, the mounting device further comprises a connecting rod, wherein the connecting rod is respectively connected with two upper brackets arranged on the longitudinal beam, and/or the connecting rod is respectively connected with two lower brackets arranged on the longitudinal beam.
Optionally, the bottom of the lower bracket is provided with a flange, the flange is arranged in an upward inclined manner, and the flange is provided with a connecting hole.
Optionally, one of the upper bracket and the lower bracket is provided with a limiting part, the other of the upper bracket and the lower bracket is provided with a mounting part matched with the limiting part, and the limiting part and/or the mounting part are/is configured in a plurality of parts, so that the position of the upper bracket relative to the frame body can be changed by adjusting the matching position of the limiting part and the mounting part.
Optionally, the limiting part is configured as a limiting hole arranged on the lower bracket, the limiting hole is configured in a plurality and extends along the length direction of the lower bracket, the mounting part is configured as a positioning hole matched with the limiting hole, and the axial leads of the limiting hole and the positioning hole are respectively parallel to the horizontal direction;
the mounting device further comprises a bolt matched with the limiting hole and the positioning hole, and the bolt is inserted into the limiting hole and the positioning hole so as to keep the position of the upper support relative to the frame body.
Optionally, the end of the bolt is provided with a limit table to limit the moving range of the bolt.
Optionally, the upper bracket and the lower bracket are both arranged on the outer side of the longitudinal beam, and a groove or a protrusion is respectively arranged on the upper bracket and the lower bracket.
Optionally, the auxiliary mounting frame is configured in a shape of a Chinese character 'mi' to divide the frame body into a plurality of mounting areas with the same area.
Optionally, a plurality of mounting holes are arranged on the cross beam and the longitudinal beam.
Optionally, the mounting device further comprises a flexible shield capable of fully encasing the frame.
Compared with the prior art, the beneficial effects of the utility model are that:
through the technical scheme, the anchor rods or the anchor hooks which can be connected with the anchor holes can be arranged on the tunnel wall in advance, so that the frame body is hung, and the frame body can be kept in a vertical state under the dead weight. Then lean on one of upper bracket or lower carriage on the tunnel cave wall, or set up the connecting piece that can link to each other with one of upper bracket or lower carriage at the tunnel cave wall to keep the position of installation device for the tunnel cave wall, guaranteed the stability of installation device position. Therefore, the positioning equipment can be conveniently installed on the auxiliary installation frame, the position stability of the positioning equipment can be guaranteed, and therefore the positioning monitoring of constructors and machines in the tunnel is achieved, the positions of the constructors and the machines are accurately identified, the quantity of the constructors and the quantity of vehicles in the tunnel are accurately counted, and then the construction safety of the constructors and the vehicles is guaranteed. Because the upper bracket for the contained angle of framework is adjustable, can adjust the contained angle of upper bracket according to the concrete structure of tunnel cave wall is nimble to adapt to the tunnel of different shapes and structure, improved this installation device's application scope.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a mounting arrangement for an underground tunnel locating device provided by the present invention, wherein the locating device and flexible guard are not shown;
fig. 2 is a side view of the present invention providing a mounting device for an underground tunnel locating apparatus;
fig. 3 is a front view of the utility model provides a mounting device for underground tunnel positioning equipment.
In the above drawings, the meaning of each reference numeral is:
1-frame body, 11-cross beam, 12-longitudinal beam, 13-anchoring hole, 14-mounting hole, 2-upper support, 3-lower support, 31-adjusting groove, 32-flange, 4-auxiliary mounting frame, 5-flexible protection piece and 6-positioning equipment.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
In the following description, specific details are provided to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
The embodiment discloses an installation device for underground tunnel positioning equipment, which is used for installing positioning equipment 6 for positioning and monitoring constructors and machinery in a tunnel so as to ensure the construction safety of personnel and vehicles. Fig. 1 to 3 show one specific embodiment thereof.
As shown in fig. 1 to 3, the mounting device for the underground tunnel positioning equipment comprises a frame body 1 provided with a mounting part and an auxiliary mounting rack 4 arranged in the frame body 1; the frame body 1 comprises a pair of oppositely arranged cross beams 11 and a pair of longitudinal beams 12 respectively connected with the cross beams 11, anchoring holes 13 used for hanging are formed in the cross beams 11, upper brackets 2 and lower brackets 3 are arranged on the longitudinal beams 12 at intervals in the vertical direction, the upper brackets 2 and the lower brackets 3 are respectively hinged to the longitudinal beams 12, and the upper brackets 2 are movably connected with the lower brackets 3 so as to adjust the included angle of the upper brackets 2 relative to the frame body 1.
Through the technical scheme, the anchor rods or the anchor hooks which can be connected with the anchoring holes 13 can be arranged on the tunnel wall in advance, so that the frame body 1 is hung, and the frame body 1 can be kept in a vertical state under the self weight. Then, one of the upper support 2 or the lower support 3 is abutted against the tunnel wall, or a connecting piece which can be connected with one of the upper support 2 or the lower support 3 is arranged on the tunnel wall, so that the position of the mounting device relative to the tunnel wall is kept, and the position stability of the mounting device is ensured. Therefore, the positioning equipment 6 can be conveniently installed on the auxiliary installation frame 4, the stability of the position of the positioning equipment 6 can be guaranteed, and therefore the positioning monitoring of constructors and machinery in the tunnel is achieved, the positions of the constructors and the machinery are accurately identified, the quantity of the constructors and the quantity of vehicles in the tunnel are accurately counted, and the construction safety of the constructors and the vehicles is guaranteed. Because the upper bracket 2 is relative to the included angle of the frame body 1 is adjustable, the included angle of the upper bracket 2 can be flexibly adjusted according to the specific structure of the tunnel wall, thereby adapting to tunnels with different shapes and structures and improving the application range of the mounting device.
It should be noted that, the setting of the anchoring hole 13 is intended to be connected with a connecting member such as an anchor rod preset on the tunnel, and a person skilled in the art can flexibly set the aperture of the anchoring hole 13 according to actual requirements. In addition, can also be on crossbeam 11 set up the go-between that can link to each other with the stock, the utility model discloses do not all do the restriction to this.
In the present invention, the upper bracket 2 and the lower bracket 3 may be movably connected in any suitable manner.
In a specific embodiment, as shown in fig. 2, a threaded hole is formed at an end of the upper bracket 2, an adjusting groove 31 is formed on the lower bracket 3, the adjusting groove 31 extends along the length direction of the lower bracket 3, and a through hole is formed at the bottom of the adjusting groove 31, the width of the through hole is larger than the aperture of the threaded hole and smaller than the outer diameter of the upper bracket 2, so that the end of the upper bracket 2 can abut against the wall of the adjusting groove 31; the mounting device further comprises a screw rod matched with the threaded hole, and the screw rod penetrates through the through hole and is matched with the threaded hole, so that the screw rod is abutted against the lower support 3 to keep the position of the upper support 2. Therefore, after the upper bracket 2 moves to the corresponding position in the adjusting groove 31, the upper bracket 2 can be fixed relative to the lower bracket 3 through the connection of the screw rod and the threaded hole, so that the tunnel is suitable for tunnels with different shapes and structures.
Of course, in other embodiments, a threaded hole may be formed in the end of the lower bracket 3, an adjusting groove 31 may be formed in the upper bracket 2, the adjusting groove 31 extends along the length direction of the upper bracket 2, a through hole is formed in the bottom of the adjusting groove 31, and the width of the through hole is greater than the aperture of the threaded hole and smaller than the outer diameter of the lower bracket 3, so that the end of the lower bracket 3 can abut against the wall of the adjusting groove 31, and the screw is matched with the threaded hole, so that the screw can abut against the upper bracket 2, and the position of the upper bracket 2 is maintained. The utility model discloses do not limit to this.
The utility model discloses in, installation device still includes the connecting rod, the connecting rod links to each other with two upper bracket 2 that set up on longeron 12 respectively, and/or, the connecting rod links to each other with two lower carriage 3 that set up on longeron 12 respectively. Thus, the rigidity of the bracket can be increased, and the reliability of the bracket in positioning can be improved.
In the present invention, as shown in fig. 2, a flange 32 is provided at the bottom of the lower frame 3, the flange 32 is inclined upward and a connection hole is provided on the flange 32. In this way, the flange 32 can be connected with the bolts preset on the tunnel wall, so that the fixing of the lower bracket 3 and the tunnel wall is realized, the installation and the removal are convenient, and the quick expansion of the tunnel construction work is facilitated.
In another specific embodiment, one of the upper bracket 2 and the lower bracket 3 may further include a limiting portion, and the other may further include a mounting portion that is engaged with the limiting portion, and the limiting portion and/or the mounting portion are configured in a plurality of configurations, so that the position of the upper bracket 2 relative to the frame 1 is changed by adjusting the engaging position of the limiting portion and the mounting portion, thereby adjusting and fixing the positions of the upper bracket 2 and the lower bracket 3.
Specifically, the limiting part is configured as a limiting hole provided on the lower bracket 3, the limiting hole is configured in a plurality and extends along the length direction of the lower bracket 3, the mounting part is configured as a positioning hole adapted to the limiting hole, and the axial leads of the limiting hole and the positioning hole are respectively parallel to the horizontal direction; the mounting device further comprises a bolt matched with the limiting hole and the positioning hole, and the bolt is inserted into the limiting hole and the positioning hole so as to keep the position of the upper bracket 2 relative to the frame body 1.
In order to prevent the bolt from being separated from the limiting hole or the positioning hole, the end part of the bolt is provided with a limiting table so as to limit the moving range of the bolt.
In other specific embodiments, the limiting portion may be configured as a slot, and the mounting portion may be configured as a clamping table capable of being clamped in the slot, so as to adjust the relative position of the upper bracket 2 and the lower bracket 3.
As shown in fig. 2, in the present invention, the upper bracket 2 and the lower bracket 3 are both disposed outside the longitudinal beam 12, so as to be folded in the non-working state, and the upper bracket 2 and the lower bracket 3 are bound on the longitudinal beam 12 by a steel wire or a rope, so as to facilitate transportation and installation. The upper support 2 and the lower support 3 are respectively provided with a groove or a bulge, which is beneficial to fixing the positions of binding pieces such as steel wires or ropes, and then improving the reliability of the upper support 2 and the lower support 3 relative to the position of the longitudinal beam 12 when the upper support and the lower support are in a folded state.
In a specific embodiment of the present invention, as shown in fig. 1, the auxiliary mounting frame 4 is configured in a shape of a Chinese character 'mi', so as to divide the frame body 1 into a plurality of mounting areas having the same area. In this way, not only can a plurality of positioning devices 6 be mounted on the auxiliary mounting frame 4, but also the weight of the whole mounting device can be reduced.
In order to facilitate the installation of the positioning device 6, a plurality of mounting holes 14 are formed in the cross beam 11 and the longitudinal beam 12, so that the device can be conveniently fixed on a mounting device through any suitable detachable connection mode such as screwing, splicing and binding, and the device is beneficial to later maintenance.
When the tunnel is drilled and exploded for construction blasting, flying stones can sputter to damage the positioning equipment 6. In order to ensure the service life of the positioning device 6, as shown in fig. 3, the mounting device further comprises a flexible protection piece 5, and the flexible protection piece 5 can completely cover the frame body 1, so that the impact and damage of flying stones on the positioning device 6 can be reduced, and the reliability of the monitoring result of the positioning device 6 in the monitoring process can be ensured.
The utility model discloses in, flexible protection piece 5 is the tire to with the ligature of suitable iron wire of thickness on framework 1. In addition, the tire can be bound on the upper bracket 2 and/or the lower bracket 3 according to actual requirements, which is not described in detail herein. In addition, flexible protection piece 5 can also be any suitable flexible piece such as sponge, polyurethane foaming body, cotton to, can also adopt other removable connected mode except that the ligature to fix flexible protection piece 5 on framework 1, the utility model discloses do not do the restriction to this all.
The above embodiments are just examples of the present invention, but the present invention is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining the above embodiments, and any one can obtain other various embodiments by the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims (10)

1. The mounting device for the underground tunnel positioning equipment is characterized by comprising a frame body (1) and an auxiliary mounting frame (4) arranged in the frame body (1);
the frame body (1) comprises a pair of oppositely arranged cross beams (11) and a pair of longitudinal beams (12) connected with the cross beams (11) respectively, anchoring holes (13) used for hanging are formed in the cross beams (11), upper supports (2) and lower supports (3) are arranged on the longitudinal beams (12) at intervals in the vertical direction, the upper supports (2) and the lower supports (3) are hinged to the longitudinal beams (12) respectively, and the upper supports (2) are movably connected with the lower supports (3) so as to adjust the included angle of the upper supports (2) relative to the frame body (1).
2. The mounting device for the underground tunnel positioning equipment according to claim 1, wherein the end of the upper support (2) is provided with a threaded hole, the lower support (3) is provided with an adjusting groove (31), the adjusting groove (31) extends along the length direction of the lower support (3), and the bottom of the adjusting groove (31) is provided with a through hole, the width of the through hole is larger than the aperture of the threaded hole and smaller than the outer diameter of the upper support (2), so that the end of the upper support (2) can abut against the groove wall of the adjusting groove (31);
the mounting device further comprises a screw rod matched with the threaded hole, and the screw rod penetrates through the through hole and is matched with the threaded hole, so that the screw rod is abutted against the lower support (3) to keep the position of the upper support (2).
3. The mounting arrangement for an underground tunnel positioning equipment according to claim 2, characterized in that the bottom of the lower bracket (3) is provided with a flange (32), the flange (32) is arranged obliquely upwards and the flange (32) is provided with a connecting hole.
4. The mounting device for an underground tunnel positioning apparatus according to claim 1, wherein one of the upper bracket (2) and the lower bracket (3) is provided with a limiting portion, and the other is provided with a mounting portion which is matched with the limiting portion, and the limiting portion and/or the mounting portion are/is configured in plurality so as to change the position of the upper bracket (2) relative to the frame body (1) by adjusting the matching position of the limiting portion and the mounting portion.
5. The mounting device for an underground tunnel positioning apparatus according to claim 4, wherein the limiting portion is configured as a limiting hole provided on the lower bracket (3), the limiting hole is configured in a plurality and extends along the length direction of the lower bracket (3), the mounting portion is configured as a positioning hole adapted to the limiting hole, and the axial leads of the limiting hole and the positioning hole are respectively parallel to the horizontal direction;
the mounting device also comprises a bolt matched with the limiting hole and the positioning hole, and the bolt is inserted into the limiting hole and the positioning hole so as to keep the position of the upper bracket (2) relative to the frame body (1); the end of the bolt is provided with a limiting table to limit the moving range of the bolt.
6. A mounting arrangement for an underground tunnel positioning apparatus according to claim 1, characterised in that the mounting arrangement further comprises connecting rods which are connected to two upper brackets (2) arranged on the longitudinal beams (12) respectively and/or which are connected to two lower brackets (3) arranged on the longitudinal beams (12) respectively.
7. The mounting device for an underground tunnel positioning apparatus according to claim 1, wherein the upper bracket (2) and the lower bracket (3) are both arranged outside the longitudinal beam (12), and the upper bracket (2) and the lower bracket (3) are respectively provided with a groove or a protrusion.
8. The mounting arrangement for an underground tunnel positioning apparatus according to claim 1, characterized in that the auxiliary mounting frame (4) is configured in a form of a Chinese character 'mi' to divide the frame (1) into a plurality of mounting areas of the same area.
9. A mounting arrangement for an underground tunnel locating device according to claim 1, characterised in that the cross beams (11) and the longitudinal beams (12) are provided with a plurality of mounting holes (14).
10. A mounting arrangement for an underground tunnel positioning apparatus according to claim 1, characterized in that the mounting arrangement further comprises a flexible shield (5), the flexible shield (5) being able to fully envelop the frame (1).
CN201921984225.XU 2019-11-15 2019-11-15 A installation device for underground tunnel positioning equipment Expired - Fee Related CN210890736U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921984225.XU CN210890736U (en) 2019-11-15 2019-11-15 A installation device for underground tunnel positioning equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921984225.XU CN210890736U (en) 2019-11-15 2019-11-15 A installation device for underground tunnel positioning equipment

Publications (1)

Publication Number Publication Date
CN210890736U true CN210890736U (en) 2020-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921984225.XU Expired - Fee Related CN210890736U (en) 2019-11-15 2019-11-15 A installation device for underground tunnel positioning equipment

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111810208A (en) * 2020-07-22 2020-10-23 国电大渡河流域水电开发有限公司 Anchor rod and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111810208A (en) * 2020-07-22 2020-10-23 国电大渡河流域水电开发有限公司 Anchor rod and manufacturing method thereof

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CP01 Change in the name or title of a patent holder

Address after: No.7 Tianyun Road, high tech Zone, Chengdu, Sichuan 610000

Patentee after: Guoneng Dadu River Basin Hydropower Development Co.,Ltd.

Patentee after: POWERCHINA Chengdu Engineering Co.,Ltd.

Address before: No.7 Tianyun Road, high tech Zone, Chengdu, Sichuan 610000

Patentee before: DADU RIVER HYDROPOWER DEVELOPMENT Co.,Ltd.

Patentee before: POWERCHINA Chengdu Engineering Co.,Ltd.

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200630

Termination date: 20211115

CF01 Termination of patent right due to non-payment of annual fee