CN215676979U - Transmission line shaft tower slope measuring instrument - Google Patents
Transmission line shaft tower slope measuring instrument Download PDFInfo
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- CN215676979U CN215676979U CN202121927656.XU CN202121927656U CN215676979U CN 215676979 U CN215676979 U CN 215676979U CN 202121927656 U CN202121927656 U CN 202121927656U CN 215676979 U CN215676979 U CN 215676979U
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Abstract
The utility model discloses a transmission line tower inclination measuring instrument, and relates to the technical field of measuring instruments. The laser range finder comprises a base, supporting rod groups are rotationally connected at the corners of the base, a central positioning assembly is connected in the middle of the base, moving assemblies are arranged on two opposite sides of the central positioning assembly and connected with the base, a vertical laser range finder is fixedly connected to the upper side of each moving assembly, a cross rod is fixedly connected to one side of each moving assembly, one end, away from the moving assemblies, of the cross rod is rotationally connected with a telescopic rod, one side of the base is connected with a protractor, the protractor is connected with the central positioning assembly through a connecting rod, the connecting rod is arranged in parallel with the axis of the telescopic rod, one end, away from the cross rod, of the telescopic rod is rotationally connected with the protractor, and a rotating shaft is located at the original point of the protractor; therefore, the inclination angle of the tower can be effectively measured, the measurement is convenient and fast, the measurement efficiency of workers is improved, and the method is more suitable for large-batch measurement.
Description
Technical Field
The utility model relates to the technical field of measuring instruments, in particular to a transmission line tower inclination measuring instrument.
Background
The pole tower is used for supporting a transmission line in an overhead transmission line. The tower is mostly made of steel or reinforced concrete and is a main supporting structure of the overhead transmission line. The inclination of the tower of the overhead transmission line is caused by the phenomenon that the center of the tower deviates from the vertical position due to the uneven top surface of the foundation upright post. In the prior art, if the inclination of an overhead transmission line tower needs to be measured, the following methods are adopted: the method comprises the following steps of measuring the inclination of a tower by a plumb bob, measuring the inclination of the tower by a theodolite and measuring the inclination of the tower by a plane mirror method. The above 3 methods are the most commonly used measurement methods in the general prior art.
The above prior art has the following disadvantages: the existing measurement modes need complicated calculation and a plurality of data support, are low in use efficiency and are not suitable for large-batch measurement.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a power transmission line tower inclination measuring instrument, which can support a base on one hand and adjust the base at different heights according to different regional environments or requirements of users on the other hand, can facilitate the alignment and positioning of a ground measuring point by a user through a central positioning component, can move and adjust a vertical laser range finder in the horizontal direction through a moving component so as to drive the vertical laser range finder to be aligned with the vertex position of a tower conveniently, further connects a telescopic rod with the moving component through the cross rod, can effectively drive the telescopic rod to rotate a certain angle on a protractor through the movement of the moving component and the rotating connection mode of the two ends of the telescopic rod with the cross rod and the protractor respectively, thereby effectively measuring the inclination angle of the tower, the method is convenient and fast, and improves the measurement efficiency of workers, thereby being more suitable for large-batch measurement.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a transmission line shaft tower slope measuring instrument, includes the base, the edge of base all rotates and is connected with the bracing piece group, the base intermediate junction has central locating component, the both sides that central locating component is relative all are equipped with the removal subassembly, the removal subassembly with the base is connected, remove the perpendicular laser range finder of subassembly upside fixedly connected with, remove subassembly one side fixedly connected with horizontal pole, the horizontal pole is kept away from remove subassembly one end and rotate and be connected with the telescopic link, base one side is connected with the protractor, the protractor pass through the connecting rod with central locating component connects, the connecting rod with the axis parallel arrangement of telescopic link, the telescopic link is kept away from the one end of horizontal pole with the protractor rotates to be connected and the axis of rotation is located the original point department of protractor.
By adopting the technical scheme, the base can be supported on one hand by arranging the supporting rod group, on the other hand, the base can be adjusted at different heights according to different regional environments or the requirements of users, the aligning and positioning with the ground measuring point can be conveniently carried out by the users through the central positioning component, the moving adjustment in the horizontal direction can be carried out on the vertical laser range finder through the moving component, so that the vertical laser range finder is driven to be conveniently aligned with the vertex position of the tower, the telescopic rod is connected with the moving component through the cross rod, the telescopic rod can be effectively driven to rotate for a certain angle on the protractor through the moving of the moving component and the rotating connection mode of the two ends of the telescopic rod with the cross rod and the protractor respectively, the inclined angle of the tower can be effectively measured, the measuring method is convenient and fast, and the measuring efficiency of workers is improved, thereby being more suitable for large-batch measurement.
The present invention in a preferred example may be further configured to: the central positioning assembly comprises a vertical rod, the vertical rod is fixedly connected with the base and penetrates through the vertical rod, the bottom side of the base is rotatably connected with a sleeve, the sleeve is sleeved on the outer side wall of the vertical rod and is in clearance fit with the vertical rod, a first threaded column is inserted into the vertical rod and penetrates through the sleeve and is in threaded connection with the sleeve, a positioning needle is fixedly connected to the bottom end of the first threaded column, and a rotating disc is fixedly connected to the outer side wall of the sleeve.
Through adopting above-mentioned technical scheme, provide the protection for first screw thread post through the montant, also provide spacingly for first screw thread post simultaneously, and then provide drive power for the rotation of first screw thread post through rolling disc and sleeve, thereby can effectually order about first screw thread post and stretch out and draw back in the montant, thereby adapt to the vertical height of base, and then can conveniently drive the pilot pin through the flexible center measuring point that can conveniently drive the pilot pin and be close to ground and make the pilot pin convenient and shaft tower bottom improve the counterpoint precision.
The present invention in a preferred example may be further configured to: the movable assembly comprises an indicating rod, the indicating rod is parallel to the vertical rod, the top of the indicating rod is fixedly connected with the vertical laser range finder, the cross rod is far away from one end of the telescopic rod is fixedly connected with the indicating rod, the bottom of the indicating rod is fixedly connected with a supporting block, one side of the supporting block is fixedly connected with a sliding block, a guide groove is formed in the side wall of the base, the sliding block is arranged in the guide groove in a sliding mode and penetrates through the guide groove, the bottom side of the base is located at two ends of the guide groove, connecting blocks are fixedly connected with second threaded columns in two modes, the connecting blocks are rotatably connected with the second threaded columns, the sliding block sleeves are arranged on the second threaded columns and are in threaded connection with the second threaded columns, and the second threaded columns penetrate through and are far away from one side of the sleeve and are connected with handles.
Through adopting above-mentioned technical scheme, provide the support for perpendicular laser range finder and horizontal pole through the pilot lever, provide the support for the pilot lever through the supporting shoe, the supporting shoe is spacing for providing of sliding block simultaneously, avoid the sliding block to break away from the guide way, can further carry on spacingly to the moving direction of sliding block through the guide way, provide the support for second screw thread post through the connecting block, can drive second screw thread post through the handle, and then the rotation through second screw thread post can effectually order about the sliding block and slide in the guide way, thereby can drive pilot lever and horizontal pole and remove, and then drive perpendicular laser range finder horizontal adjustment and counterpoint with the shaft tower top, moreover, the steam generator is simple in structure, and is convenient and fast.
The present invention in a preferred example may be further configured to: the utility model discloses a support pole, including the support pole, the support pole group includes the loop bar, sliding connection has the support column in the loop bar, the support column upside with the base rotates to be connected, a plurality of locating holes have been seted up to the lateral wall of loop bar, threaded connection has the pilot bolt on the support column, the pilot bolt runs through the support column with one of them locating hole threaded connection, the pilot bolt runs through loop bar threaded connection has the nut, the support column upside is equipped with the stopper, the stopper with base fixed connection, stopper threaded connection has the fixed pin, the fixed pin runs through the stopper can with support column threaded connection.
Through adopting above-mentioned technical scheme, slide adjusting through loop bar and support column can be effectual carries out the altitude mixture control of vertical direction to the base, and then through the locating hole, the cooperation of pilot pin and nut, can carry out multistage adjustment to the vertical height of loop bar and support column, can fix the position after both are adjusted simultaneously, and then can effectual restriction bracing piece group's the biggest expansion angle through the stopper, guarantee the support validity of bracing piece group to the base, and then through the fixed pin with stopper and support column connection location can effectually provide the stability when base uses.
The present invention in a preferred example may be further configured to: the base upside fixedly connected with two spirit levels, two the spirit level is located on any one diagonal of base.
Through adopting above-mentioned technical scheme, can be using the levelness of guaranteeing the base through set up the spirit level at the both ends of base diagonal to improve measurement accuracy.
The present invention in a preferred example may be further configured to: the base is located the avris of guide way is equipped with the scale mark.
By adopting the technical scheme, the user can conveniently measure the horizontal distance of the top inclination of the pole tower by setting the scale marks, and the data can be directly read, so that the measuring tool is convenient and fast.
In summary, the utility model includes at least one of the following beneficial technical effects:
1. the base can be supported on one hand and adjusted in different heights according to different regional environments or the requirements of users on the other hand by arranging the supporting rod group, the central positioning component can facilitate the alignment and positioning between the user and the ground measuring point, the moving component can move and adjust the vertical laser range finder in the horizontal direction, thereby driving the vertical laser range finder to be conveniently aligned with the top position of the tower, the telescopic rod is connected with the moving assembly through the cross rod, the telescopic rod can be effectively driven to rotate on the protractor for a certain angle through the moving of the moving assembly and the rotating connection mode of the two ends of the telescopic rod with the cross rod and the protractor respectively, therefore, the inclination angle of the tower can be effectively measured, the measurement is convenient and quick, the measurement efficiency of workers is improved, and the measurement is more suitable for large-batch measurement;
2. the vertical rod is used for protecting the first threaded column, meanwhile, the first threaded column is limited, and driving force is provided for rotation of the first threaded column through the rotating disc and the sleeve, so that the first threaded column can be effectively driven to stretch in the vertical rod to adapt to the vertical height of the base, and the positioning needle can be conveniently driven to be close to the ground through stretching of the first threaded column, so that the positioning needle is conveniently aligned with a central measuring point at the bottom of a tower to improve the alignment precision;
3. support for perpendicular laser range finder and horizontal pole through the pilot lever, support for the pilot lever through the supporting shoe, the supporting shoe is spacing for providing of sliding block simultaneously, avoid the sliding block to break away from the guide way, can further carry on spacingly to the moving direction of sliding block through the guide way, support for second screw thread post provides through the connecting block, can drive second screw thread post through the handle, and then the rotation through second screw thread post can effectually order about the sliding block and slide in the guide way, thereby can drive pilot lever and horizontal pole and remove, and then drive perpendicular laser range finder horizontal adjustment and counterpoint with the shaft tower top, moreover, the steam generator is simple in structure, and is convenient and fast.
Drawings
FIG. 1 is a schematic view of the overall structure of a first view of the present invention;
fig. 2 is a schematic view of the overall structure of the second view angle of the present invention.
Reference numerals: 1. a base; 2. a set of support rods; 21. a loop bar; 22. a support pillar; 23. positioning holes; 24. positioning bolts; 25. a nut; 26. a limiting block; 27. a fixing pin; 3. a central positioning assembly; 31. a vertical rod; 32. a sleeve; 33. a first threaded post; 34. a positioning pin; 35. rotating the disc; 4. a moving assembly; 41. an indication lever; 42. a support block; 43. a slider; 44. a guide groove; 45. connecting blocks; 46. a second threaded post; 47. a handle; 5. a vertical laser range finder; 6. a cross bar; 7. a telescopic rod; 8. a protractor; 9. a connecting rod; 10. a level gauge; 11. scale lines are marked.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figures 1 and 2, the utility model provides a transmission line tower inclination measuring instrument, which comprises a base 1, wherein supporting rod groups 2 are rotatably connected at the corners of the base 1, the base 1 can be supported on one hand by arranging the supporting rod groups 2, on the other hand, different heights of the base 1 can be adjusted according to different regional environments or requirements of users, a central positioning component 3 is connected in the middle of the base 1, the user can conveniently align and position with a ground measuring point by the central positioning component 3, moving components 4 are arranged at two opposite sides of the central positioning component 3, the moving components 4 are connected with the base 1, a vertical laser range finder 5 is fixedly connected at the upper side of the moving components 4, the instrument can find the position of the top point of the tower in the measuring process by the vertical laser range finder 5, and further, the vertical laser range finder 5 can be moved and adjusted in the horizontal direction by the moving components 4, thereby driving the vertical laser range finder 5 to conveniently align with the vertex position of the tower, and simultaneously measuring the height from the vertex to the measuring surface after the tower inclines, wherein one side of the movable assembly 4 is fixedly connected with a cross rod 6, the cross rod 6 is horizontally arranged, one end of the cross rod 6, which is far away from the movable assembly 4, is rotatably connected with a telescopic rod 7, one side of the base 1 is connected with a protractor 8, the protractor 8 is connected with the central positioning assembly 3 through a connecting rod 9, the connecting rod 9 is arranged in parallel with the axis of the telescopic rod 7, one end of the telescopic rod 7, which is far away from the cross rod 6, is rotatably connected with the protractor 8, the rotating shaft is positioned at the origin of the protractor 8, and then the telescopic rod 7 is connected with the movable assembly 4 through the cross rod 6, and the telescopic rod 7 can be effectively driven to rotate a certain angle on the protractor 8 through the movement of the movable assembly 4 and the rotating connection mode that the two ends of the telescopic rod 7 are respectively connected with the cross rod 6 and the protractor 8, therefore, the inclination angle of the tower can be effectively measured.
As shown in fig. 2, the central positioning component 3 includes a vertical rod 31, the vertical rod 31 is fixedly connected to the base 1, the vertical rod 31 penetrates through the base 1, the vertical rod 31 is located at the central position of the base 1, the vertical rod 31 is vertically disposed on the base 1, a sleeve 32 is rotatably connected to the bottom side of the base 1, the sleeve 32 is sleeved on the outer side wall of the vertical rod 31 and is in clearance fit with the vertical rod, preferably, a certain clearance should exist between the inner side wall of the loop bar 21 and the vertical rod 31, so as to prevent the vertical rod 31 from affecting the rotation of the loop bar 21, a first threaded column 33 is inserted into the vertical rod 31, the first threaded column 33 penetrates through the sleeve 32 and is in threaded connection with the sleeve 32, a positioning pin 34 is fixedly connected to the bottom end of the first threaded column 33, a rotating disc 35 is fixedly connected to the outer side wall of the sleeve 32, the vertical rod 31 provides protection for the first threaded column 33, and also provides a limiting position for the first threaded column 33, and further provides a driving force for the rotation of the first threaded column 33 through the rotating disc 35 and the sleeve 32, therefore, the first threaded column 33 can be effectively driven to stretch in the vertical rod 31, the vertical height of the base 1 is adapted, and the positioning needle 34 can be conveniently driven to be close to the ground through the stretching of the first threaded column 33, so that the positioning needle 34 is convenient to improve the alignment precision with a central measuring point at the bottom of the tower.
As shown in fig. 1 and 2, the moving assembly 4 includes an indication rod 41, the indication rod 41 is disposed parallel to the vertical rod 31, the top of the indication rod 41 is fixedly connected to the vertical laser range finder 5, the end of the cross rod 6 away from the telescopic rod 7 is fixedly connected to the indication rod 41, the indication rod 41 provides support for the vertical laser range finder 5 and the cross rod 6, the bottom of the indication rod 41 is fixedly connected to a support block 42, the support block 42 provides support for the indication rod 41, one side of the support block 42 is fixedly connected to a sliding block 43, a guide groove 44 is formed on a side wall of the base 1, the sliding block 43 slides in the guide groove 44 and the sliding block 43 penetrates through the guide groove 44, the support block 42 provides a limit for the sliding block 43 to prevent the sliding block 43 from separating from the guide groove 44, the moving direction of the sliding block 43 can be further limited by the guide groove 44, the bottom of the base 1 is fixedly connected to two ends of the guide groove 44, rotate between two connecting blocks 45 and be connected with second screw thread post 46, sliding block 43 cover locate on second screw thread post 46 and with second screw thread post 46 threaded connection, second screw thread post 46 runs through connecting block 45 and the fixedly connected with handle 47 of keeping away from sleeve 32 one side, and then provide the support for second screw thread post 46 through connecting block 45 when using, can drive second screw thread post 46 through handle 47, and then can effectually order about sliding block 43 through second screw thread post 46's rotation and slide in guide way 44, thereby can drive indicator bar 41 and horizontal pole 6 and remove, and then drive 5 level (l) adjustables of perpendicular laser range finder and counterpoint with the shaft tower top.
As shown in fig. 2, the support rod set 2 includes a loop bar 21, a support column 22 is slidably connected in the loop bar 21, the upper side of the support column 22 is rotatably connected with the base 1, the height of the base 1 can be effectively adjusted in the vertical direction through the sliding adjustment of the loop bar 21 and the support column 22, the support rod set 2 can be folded and placed after the use of the instrument is finished through the rotating connection mode of the support column 22 and the base 1, the instrument is convenient to store, a plurality of positioning holes 23 are formed in the side wall of the loop bar 21, preferably, the positioning holes 23 should be formed at equal intervals, a positioning bolt 24 is connected to the support column 22 through a thread, the positioning bolt 24 penetrates through the support column 22 and is in threaded connection with one of the positioning holes 23, a nut 25 is connected to the positioning bolt 24 through the loop bar 21 through a thread, and the nut 25 are matched, so that the vertical heights of the loop bar 21 and the support column 22 can be adjusted in multiple stages, can fix the position after both are adjusted simultaneously, as shown in fig. 1, support column 22 upside is equipped with stopper 26, stopper 26 and base 1 fixed connection, stopper 26 threaded connection has fixed pin 27, fixed pin 27 runs through stopper 26 and can with support column 22 threaded connection, and then can effectual restriction bracing piece group 2's the biggest angle that expandes through stopper 26, guarantee bracing piece group 2 to base 1's support validity, and then be connected the stability when location can effectually provide base 1 to use with stopper 26 and support column 22 through fixed pin 27.
As shown in fig. 1, two levels 10 are fixedly connected to the upper side of the base 1, the two levels 10 are located on any diagonal of the base 1, and the levelness of the base 1 can be ensured by arranging the levels 10 at the two ends of the diagonal of the base 1, so that the measurement accuracy is improved. The base 1 is located the avris of guide way 44 and is equipped with scale mark 11, can the person of facilitating the use measure the horizontal distance of pole tower top slope through setting up scale mark 11, directly reads data.
The implementation principle of the embodiment is as follows: when the vertical laser range finder is used, the support rod groups 2 of the vertical laser range finder are firstly unfolded, the heights of the four support rod groups 2 are adjusted according to the regional environment or the habit of a user, the heights are the same, the vertical laser range finder 5 is started, the positioning needle 34 is positioned at the center of the ground of the tower after the positioning needle 34 is contacted with the ground, the positioning needle 34 is inserted into the ground by continuously rotating the rotating disc 35 to improve the positioning precision, the horizontal level of the base 1 is ensured by observing the level gauge 10, the vertical laser range finder 5 on the inclined side of the tower is started, the rotating handle 47 is further arranged to drive the second threaded column 46 to rotate, the sliding block 43 and the vertical rod 31 are driven to horizontally move by the rotation of the second threaded column 46, and the vertical rod 31 drives the vertical laser range finder 5 to horizontally move, until the position stop rotation handle 47 that the infrared light of 5 upsides of perpendicular laser range finder is in the shaft tower summit, meanwhile the process that removes at montant 31 can drive horizontal pole 6 and remove, horizontal pole 6 can stimulate telescopic link 7 and begin to rotate from initial vertical position, and then along with horizontal pole 6's removal telescopic link 7 can rotate certain angle in protractor 8 one side, this pivoted angle is the inclination of shaft tower promptly, and this angle can directly read convenient and fast.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (6)
1. The utility model provides a transmission line shaft tower slope measuring instrument, includes base (1), its characterized in that: the utility model discloses a laser ranging device, including base (1), center locating component (3), both sides that center locating component (3) is relative all are equipped with removal subassembly (4), remove subassembly (4) with base (1) is connected, remove subassembly (4) upside fixedly connected with perpendicular laser range finder (5), remove subassembly (4) one side fixedly connected with horizontal pole (6), keep away from horizontal pole (6) remove subassembly (4) one end and rotate and be connected with telescopic link (7), base (1) one side is connected with protractor (8), protractor (8) through connecting rod (9) with center locating component (3) are connected, connecting rod (9) with the axis parallel arrangement of telescopic link (7), telescopic link (7) are kept away from the one end of horizontal pole (6) with protractor (8) rotate to be connected and the axis of rotation is located protractor (8) and rotate to be connected and the axis of rotation is located The origin of the protractor (8).
2. The transmission line tower inclination measuring instrument according to claim 1, characterized in that: center locating component (3) include montant (31), montant (31) with base (1) fixed connection just montant (31) run through base (1), base (1) bottom side is rotated and is connected with sleeve (32), sleeve (32) cover is located the lateral wall of montant (31) and with clearance fit, montant (31) interpolation is equipped with first screw thread post (33), first screw thread post (33) run through sleeve (32) and with sleeve (32) threaded connection, first screw thread post (33) bottom fixedly connected with pilot pin (34), sleeve (32) lateral wall fixedly connected with rolling disc (35).
3. The transmission line tower inclination measuring instrument according to claim 2, characterized in that: the movable component (4) comprises an indicating rod (41), the indicating rod (41) and the vertical rod (31) are arranged in parallel, the top of the indicating rod (41) is fixedly connected with the vertical laser range finder (5), one end of the cross rod (6) far away from the telescopic rod (7) is fixedly connected with the indicating rod (41), the bottom of the indicating rod (41) is fixedly connected with a supporting block (42), one side of the supporting block (42) is fixedly connected with a sliding block (43), the side wall of the base (1) is provided with a guide groove (44), the sliding block (43) slides in the guide groove (44), the sliding block (43) penetrates through the guide groove (44), the bottom side of the base (1) is positioned at two ends of the guide groove (44) and is fixedly connected with connecting blocks (45), and a second threaded column (46) is rotatably connected between the two connecting blocks (45), sliding block (43) cover is located on second screw thread post (46) and with second screw thread post (46) threaded connection, second screw thread post (46) run through and keep away from sleeve (32) one side connecting block (45) and fixedly connected with handle (47).
4. The transmission line tower inclination measuring instrument according to claim 1, characterized in that: the support rod group (2) comprises a loop bar (21), a support column (22) is connected in the loop bar (21) in a sliding way, the upper side of the supporting column (22) is rotationally connected with the base (1), the side wall of the loop bar (21) is provided with a plurality of positioning holes (23), a positioning bolt (24) is connected to the supporting column (22) in a threaded manner, the positioning bolt (24) penetrates through the supporting column (22) and is in threaded connection with one positioning hole (23), the positioning bolt (24) penetrates through the loop bar (21) and is connected with a nut (25) through threads, a limiting block (26) is arranged on the upper side of the supporting column (22), the limiting block (26) is fixedly connected with the base (1), the limiting block (26) is in threaded connection with a fixing pin (27), and the fixing pin (27) penetrates through the limiting block (26) and can be in threaded connection with the supporting column (22).
5. The transmission line tower inclination measuring instrument according to claim 1, characterized in that: the upper side of the base (1) is fixedly connected with two gradienters (10), and the two gradienters (10) are positioned on any diagonal of the base (1).
6. The transmission line tower inclination measuring instrument according to claim 3, characterized in that: the base (1) is located the avris of guide way (44) is equipped with scale mark (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927656.XU CN215676979U (en) | 2021-08-17 | 2021-08-17 | Transmission line shaft tower slope measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927656.XU CN215676979U (en) | 2021-08-17 | 2021-08-17 | Transmission line shaft tower slope measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215676979U true CN215676979U (en) | 2022-01-28 |
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ID=79953383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121927656.XU Active CN215676979U (en) | 2021-08-17 | 2021-08-17 | Transmission line shaft tower slope measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215676979U (en) |
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2021
- 2021-08-17 CN CN202121927656.XU patent/CN215676979U/en active Active
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