CN211443907U - Balance weight installation auxiliary device - Google Patents
Balance weight installation auxiliary device Download PDFInfo
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- CN211443907U CN211443907U CN201922145793.7U CN201922145793U CN211443907U CN 211443907 U CN211443907 U CN 211443907U CN 201922145793 U CN201922145793 U CN 201922145793U CN 211443907 U CN211443907 U CN 211443907U
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Abstract
The utility model relates to a weight installation auxiliary device. Balance weight installation auxiliary device includes: the first frames are used for accommodating the weight string and are matched with the weight string, and the first frames correspond to the weight string one by one; the second frame is provided with a plurality of placing units, the first frame can be stored in the placing units, and the placing units are in one-to-one correspondence with the first frames. Through the technical scheme, the plurality of weight strings can be transported at one time, the weight strings are continuously installed at the positions of the anchor posts, the shaking of the weight strings in the vertical direction can be reduced, the weight strings are prevented from colliding with the posts, and the weight is convenient to transport and install.
Description
Technical Field
The utility model relates to a railway contact net technical field, in particular to balance weight installation auxiliary device.
Background
In the process of constructing the high-speed rail contact network, in order to ensure the tension of the catenary and the contact line, the lower anchors at the two ends of the catenary and the contact line are provided with compensation devices for ensuring the tension of the catenary and the contact line, when the temperature changes, the catenary and the contact line expand with heat and contract with cold due to the temperature change, and under the influence of the gravity of the balance weight, the tension of the catenary and the contact line is automatically adjusted through the rising and falling of the balance weight, so that the stability and elasticity of contact suspension are ensured, and the operation quality is improved. When the balance weight is installed at a plurality of anchor post positions by the traditional method, the balance weight is inconvenient to transport and install.
SUMMERY OF THE UTILITY MODEL
Therefore, the auxiliary device for installing the weight is convenient to transport and install and is necessary to solve the technical problem that the traditional method for installing the weight is easy to cause inconvenience in transporting and installing the weight.
The utility model provides a weight installation auxiliary device for transport and installation many strings of weights cluster, the weight cluster includes a plurality of weights, includes:
the first frames are used for accommodating the weight string and are matched with the weight string, and the first frames correspond to the weight string one by one;
the frame comprises a first frame and a second frame, wherein a plurality of placing units are arranged on the first frame, the first frame can be stored in the placing units, and the placing units are in one-to-one correspondence with the first frames.
According to the auxiliary device for installing the balance weight, the plurality of first frames and the balance weight string can be placed in the second frame, so that after the balance weight is installed at one anchor post position, the second frame, the plurality of first frames and the rest balance weight string are transported to the next anchor post position, the balance weight string is installed at the next anchor post position, the balance weight string can be transported at one time, and the balance weight string can be continuously installed at the plurality of anchor post positions. Because when the balance weight is installed, the two sides of the first frame are lifted by the lifting belt, and the two sides of the first frame can be kept balanced in the vertical direction, so that the shaking of the balance weight string in the vertical direction can be reduced, the collision between the balance weight string and the pillar is avoided, the quality of the pillar and the balance weight is ensured, meanwhile, the balance weight string can be kept balanced in the vertical direction, and the balance weight rod is not easy to bend. Through above-mentioned technical scheme, be convenient for transport and installation balance weight.
In one embodiment, the second frame includes:
a first frame having a plurality of first frame elements connected end to end in sequence;
the second frame is in the same shape as the first frame and is provided with a plurality of second frame elements which are sequentially connected end to end, and the second frame elements correspond to the first frame elements one by one;
a plurality of third frame elements parallel to each other, one end of each of the third frame elements being fixedly connected to a joint of the adjacent first frame element, and the other end of each of the third frame elements being fixedly connected to a joint of the adjacent second frame element;
and two ends of the fourth frame element are respectively fixedly connected with the first frame element, the fourth frame element divides the first frame to form a plurality of first windows, and each first window is used for accommodating the first frame and is matched with the first frame.
In an embodiment, the second frame further comprises:
and the fifth frame element is fixedly connected with the second frame element to divide the second frame into a plurality of second windows, the fifth frame element corresponds to the fourth frame element one by one, and the second windows correspond to the first windows one by one.
In one embodiment, the number of the first frame elements is four, and four first frame elements surround a rectangle.
In an embodiment, the weight installation auxiliary device further includes a plurality of first reinforcements, the first reinforcements are parallel to the third frame element, one end of each first reinforcement is fixedly connected to the first frame element, and the other end of each first reinforcement is fixedly connected to the second frame element.
In an embodiment, the weight installation auxiliary device further includes a plurality of second reinforcing members, one end of each second reinforcing member is fixedly connected to the first frame element, the other end of each second reinforcing member is fixedly connected to the second frame element, and an included angle between each second reinforcing member and the corresponding first reinforcing member is an acute angle.
In one embodiment, the first frame has:
a third frame having a plurality of sixth frame elements connected end to end in sequence;
a fourth frame having the same shape as the third frame and having a plurality of seventh frame elements connected end to end in sequence, the seventh frame elements corresponding to the sixth frame elements one to one;
and one end of each eighth frame element is fixedly connected with the joint of the adjacent sixth frame element, and the other end of each eighth frame element is fixedly connected with the joint of the adjacent seventh frame element.
In an embodiment, the first frame further includes a first supporting member for supporting the weight, and two ends of the first supporting member are respectively and fixedly connected to the fourth frame, so as to divide the fourth frame into a plurality of windows.
In one embodiment, the fourth frame is surrounded into a rectangle, the number of the first supporting pieces is one, and the first supporting pieces divide the fourth frame into two rectangular windows; or the number of the first supporting pieces is two, the two first supporting pieces are perpendicular to each other, and the four frames are divided into four rectangular windows by the two first supporting pieces.
In an embodiment, the height of the first frame in the extending direction of the third frame element is larger than the height of the third frame element.
Drawings
Fig. 1 is a schematic diagram of a weight installation auxiliary device used for assisting in installing a weight;
FIG. 2 is a top view of a second frame of the weight mounting aid of FIG. 1;
FIG. 3 is a front view of a second frame of the weight mounting aid of FIG. 1;
FIG. 4 is a side view of a second frame of the weight mounting aid of FIG. 1;
FIG. 5 is a top view of a first frame of the weight mounting aid of FIG. 1;
FIG. 6 is a front view of a first frame of the weight mounting aid of FIG. 1;
fig. 7 is a side view of a first frame of the weight mounting aid of fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It should be noted that when a portion is referred to as being "secured to" another portion, it can be directly on the other portion or there can be an intervening portion. When a portion is said to be "connected" to another portion, it may be directly connected to the other portion or intervening portions may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 in combination with fig. 2, an embodiment of the present application provides a weight installation assisting apparatus 100. The weight installation assisting device 100 is used for transporting and installing a plurality of strings of weights 10. Each series of weight clusters 10 comprises a plurality of weights 11. The weight mounting aid 100 includes a plurality of first frames 110 and second frames 120.
The first frame 110 is used for accommodating the weight string 10 and is matched with the weight string 10. As shown in fig. 1, the weight cluster 10 is located inside the first frame 110. The first frames 110 correspond to the weight strings 10 one to one.
Referring to fig. 2 to 4, the second frame 120 includes: a first rim 121, a second rim 122, a third rim element 123, and a fourth rim element 124. The first frame 121 has a plurality of first frame elements 1211 connected end to end in sequence. The second frame 122 has the same shape as the first frame 121. The second rim 122 has a plurality of second frame elements 1221 connected end to end in sequence. The second frame elements 1221 correspond to the first frame elements 1211 one to one.
In the present embodiment, the number of the first frame elements 1211 is four. The first frame 121 encloses a rectangle.
The plurality of third frame elements 123 are parallel to each other. One end of the third frame element 123 is fixedly connected to a joint of the adjacent first frame element 1211, and the other end of the third frame element 123 is fixedly connected to a joint of the adjacent second frame element 1221. The extending direction of third frame element 123 is the same as the stacking direction of the plurality of weights 11.
Specifically, the number of the third frame elements 123 is four. A plurality of mutually parallel third frame elements 123 connect the first frame 121 and the second frame 122. The junctions of the adjacent first frame elements 1211 form corners, and the first frame 121 has four corners. The junction of adjacent second frame elements 1221 forms a corner, and the second bezel 122 has four corners. Each of the third frame members 123 has one end connected to one corner of the first side frame 121 and the other end connected to one corner of the second side frame 122, so that the space defined by the second frame 120 is substantially rectangular parallelepiped.
The number of the fourth frame elements 124 is at least one. The two ends of the fourth frame element 124 are fixedly connected to the first frame element 1211, respectively, the fourth frame element 124 divides the first frame 121 to form a plurality of first windows 101, and each first window 101 is adapted to receive the first frame 110 and is matched with the first frame 110.
Specifically, in the present embodiment, the plurality of fourth frame elements 124 are divided into two groups to form two groups of fourth frame elements 124, each group of fourth frame elements 124 includes three fourth frame elements 124 parallel to each other, wherein one group of fourth frame elements 124 is perpendicular to the other group of fourth frame elements 124, so that the two groups of fourth frame elements 124 divide the first frame 121 to form sixteen first windows 101. Each first window 101 may accommodate one first frame 110, and the first windows 101 are adapted to the first frames 110. Since the first frames 110 correspond to the weight strings 10 one by one, a plurality of first frames 110 and a plurality of strings of weight strings 10 can be placed in one second frame 120.
In other embodiments, the number of fourth frame elements 124 may also be one, two, three, etc.
The extending direction of third frame element 123 is the same as the stacking direction of the plurality of weights 11. Specifically, during transportation of the weight 11, the second frame 120 is placed on the crane, the third frame element 123 extends in the vertical direction, and the weights 11 are stacked in the vertical direction.
As shown in fig. 1, when the weight 11 is installed, since the two sides of the first frame 110 are lifted by the lifting belt 20, the two sides of the first frame 110 can be kept balanced in the vertical direction, so that the shake of the weight string 10 in the vertical direction can be reduced, the weight string 10 is prevented from colliding with the pillar, and the quality of the pillar and the weight 11 is ensured. And because the balance weight 11 is installed on the balance weight rod 30 along the vertical direction and the balance weight string 10 can be kept approximately balanced in the vertical direction, the balance weight rod 30 is not easy to bend.
The following describes the process of transporting and assisting in mounting the weight cluster 10 using the weight mounting assisting apparatus 100:
first, a second frame 120 is placed on the rail flatbed, and a plurality of first frames 110 are placed in first windows 101 of the second frame 120, wherein each first frame 110 has a weighted weight string 10 placed therein. The second frame 120, the plurality of first frames 110, and the plurality of series of weight strings 10 are then transported to the anchor post location using a rail flat car. After reaching an anchor post position, the hoisting belt 20 is used for suspending two sides of the first frame 110, so that the first frame 110 and the corresponding balance weight string 10 can be hoisted, and then the balance weight string 10 is installed by using a rail hoist. After the balance weight string 10 is installed at one of the anchor post positions, the second frame 120, the plurality of first frames 110 and the rest balance weight string 10 are transported to the next anchor post position, and the balance weight string 10 is installed at the next anchor post position.
According to the auxiliary device 100 for installing the balance weight, the plurality of first frames 110 and the balance weight string 10 can be placed in the second frame 120, so that after the balance weight 11 is installed at one anchor position, the second frame 120, the plurality of first frames 110 and the rest balance weight string 10 can be transported to the next anchor position, the balance weight string 10 is installed at the next anchor position, the plurality of balance weight strings 10 can be transported at one time, and the balance weight strings 10 can be continuously installed at the plurality of anchor positions. Because when the balance weight 11 is installed, the two sides of the first frame 110 are lifted by using the lifting belt 20, and the two sides of the first frame 110 can be kept balanced in the vertical direction, so that the shaking of the balance weight string 10 in the vertical direction can be reduced, the balance weight string 10 is prevented from colliding with a pillar, the quality of the pillar and the balance weight 11 is ensured, meanwhile, the balance weight string 10 can be kept balanced in the vertical direction, and the balance weight 11 is not easy to bend. Through above-mentioned technical scheme, be convenient for transport and installation balance weight 11.
In the present embodiment, each frame element of the second frame 120 is welded by using a steel bar having a diameter of 22 mm. The second frame 120 has dimensions of 1600mm 1200 mm. Wherein the third frame element 123 has a height of 1200mm, the first frame element 1211 has a length of 1600mm, and the second frame element 1212 has a length of 1600 mm. It will be appreciated that other materials and dimensions may be used for the frame elements of the second frame 120.
In other embodiments, the second frame 120 may also be other shapes. The first frame 121 may also enclose other shapes, such as a circle, a pentagon, etc.
Referring to fig. 5 to 7, in the present embodiment, the first frame 110 has a third frame 111, a fourth frame 112 and an eighth frame element 113. The third frame 111 has a plurality of sixth frame elements 1111 connected end to end in sequence. The fourth rim 112 and the third rim 111 are identical in shape. The fourth frame 112 has a plurality of seventh frame elements 1121 connected end to end in sequence. The seventh frame element 1121 corresponds to the sixth frame element 1111 one to one.
In the present embodiment, the number of the sixth frame elements 1111 is four. The third frame 111 encloses a rectangle.
The plurality of eighth frame elements 113 are parallel to each other. One end of the eighth frame element 113 is fixedly connected to the connection of the adjacent sixth frame element 1111, and the other end of the eighth frame element 113 is fixedly connected to the connection of the adjacent seventh frame element 1121.
Specifically, the number of the eighth frame elements 113 is four. A plurality of mutually parallel eighth frame elements 113 connect the third frame 111 and the fourth frame 112. The junction of adjacent sixth frame elements 1111 forms a corner and the third frame 111 has four corners. The junction of adjacent seventh frame elements 1121 forms a corner, and the fourth frame 112 has four corners. Each of the eighth frame members 113 has one end connected to one corner of the third frame 111 and the other end connected to one corner of the fourth frame 112, so that the space defined by the first frame 110 is substantially rectangular parallelepiped. The first frame 110 is adapted to the weight string 10, so that the weight string 10 is not easy to shake in the first frame 110.
In this embodiment, the various parts of the first frame 120 are welded with l 63mm 6mm angle steel. The first frame 110 has a size of 370mm 1300 mm. Wherein the height of the eighth frame element 113 is 1300mm, the length of the fifth frame element 1111 is 370mm, and the length of the sixth frame element 1121 is 370 mm. It will be appreciated that other materials and dimensions may be used for the frame elements of the first frame 110.
In other embodiments, the first frame 110 may also have other shapes. The third frame 111 may also enclose other shapes, such as a circle, a pentagon, etc.
In one embodiment, the number of the second frames 120 is two. The process of transporting the first frame 110 and weight string 10 to the construction site is described below: one of the second frames 120 is first placed on the truck mounted crane. The configured weight 11 is placed in the first frame 110, the two sides of the first frame 110 are suspended by the suspension band 20, the first frame 110 is lifted, and then the first frame 110 is placed in the first window 101 of the second frame 120. The second frame 120 is then transported to the construction site.
After arriving at the construction site, another second frame 120 is placed on the rail flatbed, and a plurality of first frames 110 are placed in the first windows 101 of the second frames 120, wherein each first frame 110 has a weighted weight string 10 placed therein. The second frame 120, the plurality of first frames 110, and the plurality of series of weight strings 10 are then transported to the anchor post location for installation using a rail flat car.
Because the number of the second frames 120 is two, the first frame 110 and the weight string 10 can be conveyed to a construction site by using one of the second frames 120, so that the weight string 10 is convenient to transport.
In an embodiment, the height of the first frame 110 in the extending direction of the third frame element 123 is greater than the height of the third frame element 123.
Specifically, when the second frame 120 is placed on the crane, the third frame element 123 extends in the vertical direction, and the weights 11 are stacked in the vertical direction. Since the height of the first frame 110 in the extending direction of the third frame element 123 is greater than the height of the third frame element 123, the first frame 110 exceeds the height of the third frame element 123 in the height direction, so that the hoisting belt 20 can conveniently hoist the first frame 110, and the weight 11 can be conveniently installed.
In one embodiment, the second frame 120 further includes at least one fifth frame element (not shown) fixedly connected to the second frame element 1221 to partition the second bezel 122 into a plurality of second windows (not shown), the fifth frame element corresponding to the fourth frame element 124 in a one-to-one manner, and the second windows corresponding to the first windows 101 in a one-to-one manner.
Since the fifth frame element corresponds to the fourth frame element 124 one to one. In the present embodiment, the plurality of fifth frame elements are divided into two groups, forming two groups of fifth frame elements, each group of fifth frame elements includes three parallel fifth frame elements, wherein one group of fifth frame elements is perpendicular to the other group of fifth frame elements, so that the two groups of fifth frame elements separate the second peripheral frame 122 to form sixteen second windows. Since the second windows correspond to the first windows 101 one to one, the regions between the second windows and the first windows 101 form a lattice, and the second frame 120 forms a plurality of lattices, so that the plurality of first frames 110 are spaced apart from each other.
Referring to fig. 3 and 4, in an embodiment, the frame further includes a plurality of first stiffeners 125, the first stiffeners 125 are parallel to the third frame element 123, one end of the first stiffeners 125 is fixedly connected to the first frame element 1211, and the other end of the first stiffeners 125 is fixedly connected to the second frame element 1221, so as to reinforce the second frame 120 and enhance the strength of the second frame 120.
In this embodiment, a first stiffener 125 is disposed between two adjacent third frame elements 123, and the first stiffener 125 is spaced apart from the two adjacent third frame elements 123.
In other embodiments, a plurality of first reinforcements 125 may be disposed between two adjacent third frame elements 123, which is beneficial for reinforcing the strength of the second frame 120.
In one embodiment, a plurality of second reinforcing members 126 are further included, one end of each second reinforcing member 126 is fixedly connected to the joint of the first reinforcing member 125 and the second frame element 1221, the other end of each second reinforcing member 126 is fixedly connected to the joint of the third frame element 123 and the first frame element 1211, and the adjacent second reinforcing members 126 form an included angle, so that the second frame 120 is reinforced and the strength of the second frame 120 is enhanced.
In an embodiment, the second frame 120 further includes a third reinforcement member (not shown). The third reinforcement member is parallel to the third frame element 123. One end of the third reinforcing member is fixedly connected to the fourth frame element 124, and the other end of the third reinforcing member is fixedly connected to the fifth frame element 125, so that the second frame 120 is reinforced and the strength of the second frame 120 is enhanced.
Referring to fig. 5, in an embodiment, the first frame 110 further includes a first support 114 for supporting the weight string 10. Both ends of the first supporting member 114 are fixedly connected to the fourth frame 112, respectively, so as to divide the fourth frame 112 into a plurality of windows 102.
In this embodiment, the fourth frame 112 encloses a rectangle, the number of the first supporting members 114 is one, and the first supporting members 114 divide the fourth frame 112 into two rectangular windows 102, which can support the weight 11 and reinforce the first frame 110.
In other embodiments, the number of the first supports 114 may also be two. The two first supports 114 are perpendicular to each other, and the two first supports 114 divide the fourth frame 112 into four rectangular windows 102, so that the first frame 110 can be further reinforced and the weight string 10 can be better supported.
In this embodiment, the first support 114 is made of 50mm by 5mm flat iron. It will be appreciated that other materials and other dimensions for the first support 114 may be used.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a weight installation auxiliary device for transport and installation many strings of weights cluster, the weight cluster includes a plurality of weights, its characterized in that includes:
the first frames are used for accommodating the weight string and are matched with the weight string, and the first frames correspond to the weight string one by one;
the frame comprises a first frame and a second frame, wherein a plurality of placing units are arranged on the first frame, the first frame can be stored in the placing units, and the placing units are in one-to-one correspondence with the first frames.
2. The weight mounting aid of claim 1, wherein the second frame comprises:
a first frame having a plurality of first frame elements connected end to end in sequence;
the second frame is in the same shape as the first frame and is provided with a plurality of second frame elements which are sequentially connected end to end, and the second frame elements correspond to the first frame elements one by one;
a plurality of third frame elements parallel to each other, one end of each of the third frame elements being fixedly connected to a joint of the adjacent first frame element, and the other end of each of the third frame elements being fixedly connected to a joint of the adjacent second frame element;
and two ends of the fourth frame element are respectively fixedly connected with the first frame element, the fourth frame element divides the first frame to form a plurality of first windows, and each first window is used for accommodating the first frame and is matched with the first frame.
3. The weight mounting aid of claim 2, wherein the second frame further comprises:
and the fifth frame element is fixedly connected with the second frame element to divide the second frame into a plurality of second windows, the fifth frame element corresponds to the fourth frame element one by one, and the second windows correspond to the first windows one by one.
4. The weight mounting auxiliary device of claim 2, wherein the number of the first frame elements is four, and four first frame elements enclose a rectangle.
5. The weight mounting auxiliary device of claim 3, further comprising a plurality of first reinforcements, wherein the first reinforcements are parallel to the third frame element, one end of the first reinforcements is fixedly connected to the first frame element, and the other end of the first reinforcements is fixedly connected to the second frame element.
6. The weight mounting auxiliary device of claim 5, further comprising a plurality of second reinforcements, wherein one end of each second reinforcement is fixedly connected to the first frame element, the other end of each second reinforcement is fixedly connected to the second frame element, and an included angle between each second reinforcement and the corresponding first reinforcement is an acute angle.
7. The weight mounting aid of claim 1, wherein the first frame has:
a third frame having a plurality of sixth frame elements connected end to end in sequence;
a fourth frame having the same shape as the third frame and having a plurality of seventh frame elements connected end to end in sequence, the seventh frame elements corresponding to the sixth frame elements one to one;
and one end of each eighth frame element is fixedly connected with the joint of the adjacent sixth frame element, and the other end of each eighth frame element is fixedly connected with the joint of the adjacent seventh frame element.
8. The weight installation auxiliary device of claim 7, wherein the first frame further comprises a first supporting member for supporting the weight, and two ends of the first supporting member are respectively and fixedly connected with the fourth frame so as to divide the fourth frame into a plurality of windows.
9. The weight installation auxiliary device of claim 8, wherein the fourth frame is rectangular, the number of the first supporting members is one, and the first supporting members divide the fourth frame into two rectangular windows; or the number of the first supporting pieces is two, the two first supporting pieces are perpendicular to each other, and the four frames are divided into four rectangular windows by the two first supporting pieces.
10. The weight mounting aid of claim 2, wherein a height of the first frame in a direction of extension of the third frame element is greater than a height of the third frame element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922145793.7U CN211443907U (en) | 2019-12-04 | 2019-12-04 | Balance weight installation auxiliary device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922145793.7U CN211443907U (en) | 2019-12-04 | 2019-12-04 | Balance weight installation auxiliary device |
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| CN211443907U true CN211443907U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307137A (en) * | 2021-06-05 | 2021-08-27 | 河北宏光供电器材有限公司 | Auxiliary tool for replacing balance weight block |
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2019
- 2019-12-04 CN CN201922145793.7U patent/CN211443907U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307137A (en) * | 2021-06-05 | 2021-08-27 | 河北宏光供电器材有限公司 | Auxiliary tool for replacing balance weight block |
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