CN210562257U - Transmission line foundation construction chamfering tool - Google Patents
Transmission line foundation construction chamfering tool Download PDFInfo
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- CN210562257U CN210562257U CN201920885770.7U CN201920885770U CN210562257U CN 210562257 U CN210562257 U CN 210562257U CN 201920885770 U CN201920885770 U CN 201920885770U CN 210562257 U CN210562257 U CN 210562257U
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- chamfering
- chamfer
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- transmission line
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Abstract
The utility model provides a transmission line foundation construction chamfering tool belongs to electric power construction tool technical field, including four chamfer framves, connect the connecting band of chamfer frame, locate the chamfer strip that is used for pressing close to basic end angle in the chamfer frame, can adjust the adjusting part of the chamfer size of chamfer strip, the both ends of chamfer strip are removed with the help of adjusting part's regulation respectively. The utility model provides a transmission line foundation construction chamfering tool, through adjusting part's regulation, make the chamfer strip take place to remove, with basic end angle radius angle, have the chamfer size adjustable to the basis, be applicable to the basic radius angle of variation in size and use, need not go to handle the chamfer in artifical later stage, improve the technological effect of the process velocity of basic chamfer.
Description
Technical Field
The utility model belongs to the technical field of the electric power construction tool, more specifically say, relate to a transmission line foundation construction chamfering tool.
Background
The main construction of the power transmission line pouring foundation is to fill materials in a rectangular or square outer sleeve template, chamfer the rectangular or square foundation according to the process requirements after the materials are filled, the chamfer is required to be uniform, and the standard outer edge template is taken down after the foundation is solidified to complete the foundation construction of the power transmission line. The existing chamfering processing is carried out by manually holding a chamfering tool, the manual operation speed is low, the chamfering size is difficult to keep standard and uniform, the chamfering quality is greatly influenced by human factors, and the appearance of the foundation is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transmission line foundation construction chamfering tool to solve the use chamfering tool processing chamfer that exists among the prior art, manual operation speed is slow, the nonuniform technical problem of chamfer size.
In order to achieve the above object, the utility model adopts the following technical scheme: a power transmission line foundation construction chamfering tool for chamfering a power transmission line foundation is provided, which comprises
Four chamfering frames which are respectively positioned at the four end corners of the foundation;
the connecting belt is used for connecting the two adjacent chamfering frames and can stretch out and draw back;
the chamfering strip is an elastic structural part, is arranged on the inner side of the chamfering frame, is close to the end corner of the foundation and is used for chamfering the foundation;
the adjusting assembly is arranged at the end part of the chamfering frame and used for driving the chamfering strip to move and adjusting the chamfering angle of the chamfering strip; the adjusting assembly comprises connecting pieces fixedly arranged at two ends of the chamfering strip, a bolt in threaded connection with the chamfering frame and a bearing piece fixedly arranged in the connecting pieces and rotatably connected with the inner end of the bolt; both ends of the chamfered bar are respectively moved by means of the screwing and pushing of the bolt.
Furthermore, a spring part is arranged between the chamfering frame and the connecting piece and used for adjusting the distance between the chamfering frame and the connecting piece.
Further, the chamfer frame is the right-angle shape structure, two right angle edges of chamfer frame all are equipped with adjusting part.
Further, two spring members are provided on both sides of each of the adjustment assemblies.
Further, the connecting band is the extension spring.
Further, the connecting band is an elastic band body.
Furthermore, the chamfer strip is of an inwards concave cambered surface structure.
Further, the chamfer strip is of a fan-shaped structure.
Further, the chamfer strip includes elastic component and two fixed parts, two the fixed part is located respectively the both ends of elastic component.
Further, the fixed part is fixedly connected with the adjusting component.
The utility model provides a transmission line foundation construction chamfer instrument's beneficial effect lies in: compared with the prior art, the utility model discloses a transmission line foundation construction chamfering tool for carry out chamfer processing to transmission line's basis, when filling filler in to the template, set up this chamfering tool at the edge of template in advance, press close to in the chamfer department of basis through the chamfer strip that sets up, can be to terminal angle radius angle, the connecting band can stretch out and draw back, satisfies the radius angle processing of the basis of variation in size;
the utility model discloses an adjusting part can adjust the chamfer strip, makes the size of radius angle adjustable, can fall into the right angled fillet, can fall into obtuse fillet, solves the use chamfering tool processing chamfer that exists among the prior art, and manual operation speed is slow, and the technical problem of chamfer size non-uniformity has the chamfer size adjustable to the basis, is applicable to the basic radius angle use of variation in size, need not artifical later stage go to handle the chamfer, improves the technological effect of the process velocity of basic chamfer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural view of a chamfering tool for power transmission line foundation construction provided by an embodiment of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Wherein, in the figures, the respective reference numerals: 1-chamfering frame; 2-connecting the belt; 3-chamfering; 4-a regulating component; 41-a connector; 42-bolt; 43-a bearing member; 44-spring element.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to fig. 2, a chamfering tool for power transmission line foundation construction according to an embodiment of the present invention will now be described. The power transmission line foundation construction chamfering tool is used for chamfering the power transmission line foundation, and comprises
Four chamfering frames 1 are respectively positioned at the four end corners of the foundation; a chamfer angle frame 1 is arranged at the position of an end angle of each foundation, and the chamfer angle frame 1 is in a right-angle shape and is matched with the end angle of the foundation in shape;
the connecting belt 2 is used for connecting the two adjacent chamfering frames 1 and can stretch out and draw back; the chamfering frame 1 needs to be close to the end angle position of the foundation, so that two adjacent chamfering frames 1 need to be connected through a connecting belt 2;
because the number of the chamfering frames 1 is four, the number of the connecting bands 2 is four, after the chamfering frames 1 are connected by the connecting bands 2, a rectangular frame body is integrally formed, the middle part of the frame body is sleeved on a foundation, and the chamfering frames 1 are close to the end corners of the foundation.
The chamfering strip 3 is an elastic structural part, is arranged on the inner side of the chamfering frame 1, is close to the end corner of the foundation and is used for chamfering the foundation; the chamfering bar 3 is an execution part for chamfering the foundation, and is a part directly contacted with the unformed foundation;
the setting position of the chamfering strip 3 can be changed by adjusting or operating the adjusting component 4, and the base can be chamfered into fillets with different angles.
The adjusting assembly 4 is arranged at the end part of the chamfering frame 1 and used for driving the chamfering strip 3 to move and adjusting the chamfering angle of the chamfering strip 3; the adjusting component 4 comprises a connecting piece 41 fixedly arranged at two ends of the chamfering strip 3, a bolt 42 in threaded connection with the chamfering frame 1, and a bearing piece 43 fixedly arranged in the connecting piece 41 and rotatably connected with the inner end of the bolt 42; both ends of the chamfered strip 3 are respectively moved by screwing and pushing the bolts 42.
Through the manual bolt 42 of revolving soon, bolt 42 rotates, drives the rotation of bearing piece 43, and bearing piece 43 rotates and turns into the rectilinear movement of connecting piece 41, so can pass through adjusting bolt 42 for the position of chamfer strip 3 takes place to remove, can be with the end angle of basis pour into the fillet at right angle, also can pour into the fillet at obtuse angle, in order to adapt to the different needs to the chamfer form.
Compared with the prior art, the chamfering tool for the power transmission line foundation construction is used for chamfering the power transmission line foundation, when filling filler into a template, the chamfering tool is arranged at the edge of the template in advance, the chamfering strip 3 is arranged to be close to the chamfer angle of the foundation, the chamfering angle of the end angle can be realized, the connecting belt 2 can be stretched, the chamfering processing of foundations with different sizes is met, the chamfering strip 3 can be adjusted through the adjusting component 4, the size of the chamfering angle can be adjusted, the right-angled fillet can be chamfered, the obtuse-angled fillet can be chamfered, the technical problems that the chamfering tool is used for processing the chamfering in the prior art, the manual operation speed is slow, the chamfering sizes are not uniform are solved, the chamfering size of the foundation can be adjusted, the chamfering tool is suitable for the use of the foundation chamfering angles with different sizes, and the chamfering is not required to be manually processed in the later period, the technical effect of improving the processing speed of the basic chamfer is achieved.
The main body construction of the power transmission line pouring foundation is that materials are filled in a rectangular or square outer sleeve template, chamfering processing is carried out on the rectangular or square foundation according to the requirements of the process after the materials are filled, redundant chamfers are manually wiped off in the common chamfering processing, the manual operation speed is low, and the chamfer size is not attractive. Through adopting the utility model discloses a behind the chamfering tool, can be with the basis fillet of falling into, and the size and the specification of fillet are more unanimous and the outward appearance is more pleasing to the eye, accord with design and construction requirement.
Chamfer frame 1 is 4, places 4 chamfer frames 1 respectively in four end angle positions of basis when using, because the basis is cuboid or square, so can the one-to-one setting, makes chamfer frame 1 of each be located an end angle position department of basis. Therefore, when the foundation is constructed, four end corners of the foundation can be chamfered into round corners, so that the design or construction requirements can be met.
As the utility model discloses a another embodiment, when the transmission line basis is regular polygon, like regular hexagon, just will set six chamfer framves 1 to, the angle of buckling of chamfer frame 1 is 120 degrees, and links together through connecting band 2 each other, and the chamfer strip 3 supporting with it also need be six, forms the regular hexagon structure after each chamfer frame 1 is connected, makes chamfer strip 3 and the laminating of six end angles on basis, accomplishes the chamfer construction on basis.
Referring to fig. 1 to 2, as a specific implementation manner of the chamfering tool for power transmission line foundation construction provided in the embodiment of the present invention, a spring member 44 is disposed between the chamfering frame 1 and the connecting member 41, and is used to adjust a distance between the chamfering frame 1 and the connecting member 41. The spring piece 44 is relatively smooth in stretching and compressing, and the distance between the chamfering frame 1 and the chamfering strip 3 can be adjusted through stretching or compressing the spring piece 44, so that the chamfering strip 3 can be bent into different fan shapes, and the chamfering strip can adapt to foundation construction of different specifications and sizes.
The spring part 44 is an extension spring, and the extension spring is an elastic part with resilience function, can make the nature of chamfer strip 3 kick-back, revolves through screwing operation of bolt 42, can adjust the distance between chamfer frame 1 and the chamfer strip 3, adapts to different specification and dimension's basic chamfer and uses. When the manual bolt 42 of revolving carries out the regulation to chamfer strip 3, the forward rotation and the reverse rotation of bolt 42 all can make the function that the distance between chamfer frame 1 and the chamfer strip 3 realized adjusting, and then can increase or reduce the distance between chamfer frame 1 and the chamfer strip 3, and spring part 44 can kick-back chamfer strip 3, makes chamfer strip 3 under the effect that does not have the external force, keeps the expansion state, and spring part 44 has played the function of supplementary bolt 42 operation.
Each bolt 42 is matched with 2 spring parts 44, 4 spring parts 44 can also be used, and each side of each bolt 42 is respectively provided with 2 spring parts 44, so that the compression acting force on the chamfering strip 3 is larger, namely the acting force of rebounding of the chamfering strip 3 is larger, and the use of the chamfering strip 3 is more labor-saving.
As another embodiment of the present invention, the bolt 42 may also be a cylinder with external threads, the cylinder is connected with the chamfered frame 1 by threads, the external threads are disposed on the cylinder, and the inner end of the cylinder is rotatably connected with the bearing member 43.
As another embodiment of the present invention, the bolt 42 is a plastic bolt, and can be connected to the chamfering frame 1 by a screw.
Wherein, the plastic bolt, the stud and the like are devices for increasing the gap between the chamfering frame 1 and the chamfering strip 3, and can play a role in adjusting the gap between the chamfering frame 1 and the chamfering strip 3.
Referring to fig. 1 to 2, as a specific implementation manner of the chamfering tool for power transmission line foundation construction provided by the embodiment of the present invention, the chamfering frame 1 is a right-angle structure, and two right-angle edges of the chamfering frame 1 are both provided with the adjusting components 4.
Be equipped with a set of chamfer strip 3 and two sets of adjusting part 4 on a set of chamfer frame 1, chamfer frame 1 is located basic end angle position, can carry out the fillet operation to the basis through chamfer strip 3.
Two right-angle sides of chamfer frame 1, with two adjacent right-angle side parallel arrangement of the end angle of basis, chamfer frame 1's arrangement structure and the structure looks adaptation of the end angle of basis promptly, chamfer strip 3 can be with the end angle of basis chamfer fillet, improves chamfer efficiency.
As another embodiment of the utility model, when the basis of treating the construction is regular polygon structure, like regular hexagon's basis, can set to the obtuse angle with two limits of chamfer frame 1, this obtuse angle is 120 degrees so, can satisfy the chamfer construction of different forms of basis like this.
As another embodiment of the utility model, when the basis of treating the construction is regular polygon structure, like regular trilateral basis, can set two limits of chamfer frame 1 to the acute angle, the angle of this acute angle is 60 degrees so, can satisfy the chamfer construction on different forms's basis like this.
As another embodiment of the present invention, the chamfering frame 1 may be arranged in an acute or obtuse angle, as long as the adjusting component 4 is set on the chamfering frame 1 and can adjust the chamfering bar 3, and the form of the chamfering frame 1 is not limited too much.
Referring to fig. 1 to fig. 2, as a specific implementation manner of the chamfering tool for power transmission line foundation construction provided by the embodiment of the present invention, two spring members 44 are disposed on two sides of each adjusting assembly 4. The spring member 44 can be in various forms, and the purpose of adjusting the gap between the chamfering strip 3 and the chamfering frame 1 can be realized by pulling the chamfering strip 3.
The spring part 44 is a tension spring, is symmetrically arranged on two sides of the bolt 42, has resilience performance, and can enable resilience of the chamfering strip 3, or enable the chamfering strip 3 to be close to or close to the chamfering frame 1, so that a gap between the chamfering strip 3 and the chamfering frame 1 is reduced, and the distance between the chamfering frame 1 and the chamfering strip 3 can be flexibly mastered.
When the bolt 42 is manually screwed to adjust the chamfering bar 3, the distance between the chamfering frame 1 and the chamfering bar 3 can be increased or decreased, and the spring member 44 functions to assist the operation of the bolt 42.
Referring to fig. 1 to 2, as another embodiment of the present invention, the spring element 44 is an extension spring, which is an elastic element with resilience function, so that the chamfering strip 3 can be naturally rebounded, and the distance between the chamfering frame 1 and the chamfering strip 3 can be adjusted by screwing the bolt 42, so as to adapt to basic chamfers with different specifications. When the bolt 42 is screwed manually to adjust the chamfering strip 3, the bolt 42 rotates forward and reversely, the distance between the chamfering frame 1 and the chamfering strip 3 can be adjusted, the distance between the chamfering frame 1 and the chamfering strip 3 can be increased or reduced, the spring piece 44 can rebound the chamfering strip 3, the chamfering strip 3 is kept in an unfolded state under the action of no external force, and the spring piece 44 has the function of assisting the operation of the bolt 42.
Each bolt 42 is matched with 2 spring parts 44, 4 spring parts 44 can also be used, and each side of each bolt 42 is respectively provided with 2 spring parts 44, so that the compression acting force on the chamfering strip 3 is larger, namely the acting force of rebounding of the chamfering strip 3 is larger, and the use of the chamfering strip 3 is more labor-saving.
Connecting band 2 can stretch out and draw back, can freely stretch out and draw back, the connecting band has the function of returning back, when the longer basis of opposite side length is under construction, can be through the length of elongated connecting band 2, adjust the distance between two adjacent chamfer framves 1, then loosen chamfer frame 1, then these several chamfer framves 1 will be withdrawed with the help of the resilience effort of connecting band 2, make the equal laminating of a plurality of chamfer strips 3 in the end angle position department on basis, thereby can adapt to the chamfer construction of the basis of variation in size, can be with the operation through dragging connecting band 2, high durability and convenient use, and high operation speed.
Referring to fig. 1 to 2 together, as a specific implementation of the chamfering tool for power transmission line foundation construction provided by the embodiment of the present invention, the connecting band 2 is an elastic band body.
Connecting band 2 is compression state under the normal condition, can stretch out and draw back, when being under construction to the basis, can adjust the distance between two adjacent chamfer framves 1 through the length of lengthening connecting band 2 to can adapt to the chamfer construction of the basis of variation in size, can be with the operation through drawing to drag, convenient to use, the operating speed is fast.
Referring to fig. 1 to 2, as a specific implementation of the chamfering tool for power transmission line foundation construction provided in the embodiment of the present invention, the chamfering bar 3 is an inwardly concave arc surface.
4 link together through connecting band 2 interconnect between the chamfer frame 1, connect through connecting band 2 between per two adjacent chamfer frames 1, 4 intervals accessible between the chamfer strip 3 draw one of them or two chamfer frame 1 can realize, adjust the regional area that 4 chamfer strips 3 enclose promptly to adapt to the basic chamfer construction of different specifications or size, adjust more smoothly and nimble between 4 chamfer frames 1.
Referring to fig. 1 to 2, as a specific implementation of the chamfering tool for power transmission line foundation construction provided by the embodiment of the present invention, the chamfering bar 3 is a fan-shaped structure. Thickness of the fan-shaped structure
The both ends of chamfer strip 3 can be through revolving of the bolt 42 of adjusting part 4 soon, make chamfer strip 3 draw close to one side of chamfer frame 1 to can adjust the clearance between chamfer strip 3 and the chamfer frame 1, thereby adapt to the foundation construction chamfer of different specifications and use.
The sector structure is elastic, and the opening angle of the sector can be expanded or compressed by applying external force, so that the area of the area surrounded by the plurality of chamfering strips 3 can be adjusted.
Referring to fig. 1 to 2, as a specific implementation manner of the chamfering tool for power transmission line foundation construction provided by the embodiment of the present invention, the chamfering strip 3 includes an elastic portion and two fixing portions, and the two fixing portions are respectively disposed at two ends of the elastic portion.
The fixing part is made of hard materials and is a part directly and fixedly connected with the connecting piece 41, the fixing part is fixedly connected with the two ends of the elastic part, the elastic part can play a role of stretching or elasticity, and the fixing part is a hard structural part which cannot stretch and retract and plays a role of stretching or elasticity.
The elastic piece is directly pressed close to with the basis in the work progress to can adjust the size of the radius angle on basis, guarantee the basis can the radius angle in the construction.
The fixed part is arranged at two ends of the elastic part and used for fixing the elastic part and enabling the elastic part to play a role of being close to the foundation.
Referring to fig. 1 to 2, as a specific implementation manner of the chamfering tool for power transmission line foundation construction according to an embodiment of the present invention, the fixing portion is fixedly connected to the adjusting component 4, the fixing portion is a metal member, the elastic portion is an elastic member, and the fixing portion and the elastic portion are connected by welding or bolt fastening.
As another embodiment of the present application, the fixing portion and the elastic portion may be non-metal members, the fixing portion is made of hard plastic, and the elastic portion is made of elastic plastic.
The elastic plastic may be a PE, TUV or HUS material, which is particularly light and polymeric. The elastic plastic can also be plastic, the plastic is mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements, and the finished product is solid and is liquid in a molten state in the manufacturing process.
The rigid plastic comprises the hardest single-component polymer material at present, is polycarbonate, and is used for manufacturing glasses lenses and the like.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Transmission line foundation construction chamfer instrument, its characterized in that: comprises that
Four chamfering frames which are respectively positioned at the four end corners of the foundation;
the connecting belt is used for connecting the two adjacent chamfering frames and can stretch out and draw back;
the chamfering strip is an elastic structural part, is arranged on the inner side of the chamfering frame, is close to the end corner of the foundation and is used for chamfering the foundation;
the adjusting assembly is arranged at the end part of the chamfering frame and used for driving the chamfering strip to move and adjusting the chamfering angle of the chamfering strip; the adjusting assembly comprises connecting pieces fixedly arranged at two ends of the chamfering strip, a bolt in threaded connection with the chamfering frame and a bearing piece fixedly arranged in the connecting pieces and rotatably connected with the inner end of the bolt; both ends of the chamfered bar are respectively moved by means of the screwing and pushing of the bolt.
2. The transmission line foundation construction chamfering tool of claim 1, characterized in that: and a spring part is arranged between the chamfering frame and the connecting piece and used for adjusting the distance between the chamfering frame and the connecting piece.
3. The transmission line foundation construction chamfering tool of claim 1, characterized in that: the chamfering frame is of a right-angle structure, and two right-angle edges of the chamfering frame are provided with adjusting components.
4. The transmission line foundation construction chamfering tool of claim 2, characterized in that: two spring pieces are arranged on two sides of each adjusting assembly.
5. The transmission line foundation construction chamfering tool of claim 1, characterized in that: the connecting belt is a tension spring.
6. The transmission line foundation construction chamfering tool of claim 1, characterized in that: the connecting band is an elastic band body.
7. The transmission line foundation construction chamfering tool of claim 1, characterized in that: the chamfer strip is of an inward concave cambered surface structure.
8. The transmission line foundation construction chamfering tool of claim 1, characterized in that: the chamfer strip is of a fan-shaped structure.
9. The transmission line foundation construction chamfering tool of claim 1, characterized in that: the chamfer strip comprises an elastic part and two fixing parts, wherein the two fixing parts are respectively arranged at two ends of the elastic part.
10. The transmission line foundation construction chamfering tool of claim 9, characterized in that: the fixing part is fixedly connected with the adjusting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885770.7U CN210562257U (en) | 2019-06-12 | 2019-06-12 | Transmission line foundation construction chamfering tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885770.7U CN210562257U (en) | 2019-06-12 | 2019-06-12 | Transmission line foundation construction chamfering tool |
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| Publication Number | Publication Date |
|---|---|
| CN210562257U true CN210562257U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920885770.7U Active CN210562257U (en) | 2019-06-12 | 2019-06-12 | Transmission line foundation construction chamfering tool |
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| Country | Link |
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| CN (1) | CN210562257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982475A (en) * | 2021-03-04 | 2021-06-18 | 衡水衡源电力建设有限责任公司 | Auxiliary mounting tool for prefabricated foundation of power transmission line |
-
2019
- 2019-06-12 CN CN201920885770.7U patent/CN210562257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982475A (en) * | 2021-03-04 | 2021-06-18 | 衡水衡源电力建设有限责任公司 | Auxiliary mounting tool for prefabricated foundation of power transmission line |
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