CN114809773A - Large-diameter steel pipe insulation device and medium wave tower comprising same - Google Patents
Large-diameter steel pipe insulation device and medium wave tower comprising same Download PDFInfo
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- CN114809773A CN114809773A CN202210263631.7A CN202210263631A CN114809773A CN 114809773 A CN114809773 A CN 114809773A CN 202210263631 A CN202210263631 A CN 202210263631A CN 114809773 A CN114809773 A CN 114809773A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 239000012212 insulator Substances 0.000 claims abstract description 161
- 229920000728 polyester Polymers 0.000 claims abstract description 24
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 239000004809 Teflon Substances 0.000 claims 1
- 229920006362 Teflon® Polymers 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2253—Mounting poles or posts to the holder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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Abstract
本发明公开了自立式中波塔技术领域的一种大直径钢管绝缘装置,包括绝缘子上段、绝缘子组合段、绝缘子底段,所述绝缘子上段包括绝缘子上段上法兰、绝缘子上段本体、绝缘子上段下法兰;所述绝缘子底段包括绝缘子底段上法兰、绝缘子底段本体、绝缘子底段下法兰;所述绝缘子组合段包括若干个绝缘子、聚酯筋、顶塔螺栓,所述绝缘子顶端安装于绝缘子上段下法兰,所述绝缘子底端安装于绝缘子底段上法兰,所述绝缘子上段下法兰和绝缘子底段上法兰通过若干个聚酯筋、顶塔螺栓固定连接。本发明还公开了含大直径钢管绝缘装置的中波塔。有益效果:创新研发了适用于大直径圆形塔柱中波塔的大直径钢管绝缘装置,大幅度降低维护成本。
The invention discloses a large-diameter steel pipe insulation device in the technical field of self-supporting mid-wave towers, comprising an insulator upper section, an insulator combination section, and an insulator bottom section. flange; the insulator bottom section includes the upper flange of the insulator bottom section, the body of the insulator bottom section, and the lower flange of the insulator bottom section; the insulator combined section includes a number of insulators, polyester ribs, and top tower bolts, and the top of the insulator It is installed on the lower flange of the upper section of the insulator, the bottom end of the insulator is installed on the upper flange of the bottom section of the insulator, and the lower flange of the upper section of the insulator and the upper flange of the bottom section of the insulator are fixedly connected by several polyester bars and top tower bolts. The invention also discloses a mid-wave tower containing a large-diameter steel pipe insulation device. Beneficial effect: The large-diameter steel pipe insulation device suitable for the middle-wave tower of the large-diameter circular tower is innovatively developed, which greatly reduces the maintenance cost.
Description
技术领域technical field
本发明属于自立式中波塔技术领域,特别涉及一种大直径钢管绝缘装置及含大直径钢管绝缘装置的中波塔。The invention belongs to the technical field of self-supporting mid-wave towers, and particularly relates to a large-diameter steel pipe insulation device and a mid-wave tower containing the large-diameter steel pipe insulation device.
背景技术Background technique
自立式中波塔领域中,由于需要将塔体与基础做到绝缘,在中波塔塔柱底部采用绝缘子支座来实现绝缘的要求。这种绝缘子支座既要承受塔体上部结构拔力、压力荷载,同时还有可能承受由于侧向荷载引起的弯矩作用。In the field of self-supporting mid-wave towers, due to the need to insulate the tower body from the foundation, an insulator support is used at the bottom of the mid-wave tower column to meet the insulation requirements. This kind of insulator support should not only bear the pulling force and pressure load of the upper structure of the tower body, but also may bear the bending moment caused by the lateral load.
专利名称一种多向受力高强聚酯绝缘柱脚,专利号为CN201520744597.0的一篇实用新型专利公开了如下技术特征:包括混凝土柱墩基础、绝缘柱脚和挡水罩,绝缘柱脚包括上柱靴、下柱靴、圆筒形高强聚酯绝缘体、预应力高强聚酯筋、高强聚酯筋专用下压接头、高强聚酯筋专用上压接头、加压板、绝缘体底板、临时支撑螺杆、下柱靴加劲板、钢底板、上柱靴加劲板、环形加劲板和放电器。采用强度极高的高强聚酯筋承受塔柱的拉力,同时高强聚酯筋具有良好的绝缘性能,保证塔体底部的绝缘效果;采用对高强聚酯筋施加预拉力的方式使高强聚酯绝缘体始终处于压应力状态,改变高强绝缘体的受拉脆性特性,使其变为韧性结构。Patent name A multi-directional force high-strength polyester insulating column foot, a utility model patent with the patent number CN201520744597.0 discloses the following technical features: including a concrete column pier foundation, an insulating column foot and a water retaining cover, an insulating column foot Including upper column shoe, lower column shoe, cylindrical high-strength polyester insulator, prestressed high-strength polyester rib, special lower pressure joint for high-strength polyester rib, special upper pressure joint for high-strength polyester rib, pressure plate, insulator bottom plate, temporary Support screw, lower column shoe stiffening plate, steel base plate, upper column shoe stiffening plate, annular stiffening plate and discharger. The high-strength polyester bar with extremely high strength is used to bear the tension of the tower column, and the high-strength polyester bar has good insulating properties to ensure the insulation effect at the bottom of the tower; It is always in a state of compressive stress, changing the tensile brittleness characteristics of high-strength insulators and making them ductile structures.
传统小直径钢管中波塔绝缘支座由高频绝缘陶瓷制作,如果改成直径为0.8-3米的大直径钢管中波塔,大直径高强绝缘子制作费用高,不经济,安装拆卸困难,费用高。The traditional small-diameter steel pipe mid-wave tower insulating support is made of high-frequency insulating ceramics. If it is changed to a large-diameter steel pipe mid-wave tower with a diameter of 0.8-3 meters, the production cost of large-diameter high-strength insulators is high, uneconomical, difficult to install and disassemble, and expensive high.
发明内容SUMMARY OF THE INVENTION
为了解决以上问题,本发明提出了一种大直径钢管绝缘装置及含大直径钢管绝缘装置的中波塔。In order to solve the above problems, the present invention proposes a large-diameter steel pipe insulation device and a mid-wave tower containing the large-diameter steel pipe insulation device.
一种大直径钢管绝缘装置,包括绝缘子上段、绝缘子组合段、绝缘子底段,所述绝缘子上段包括绝缘子上段上法兰、绝缘子上段本体、绝缘子上段下法兰,所述绝缘子上段上法兰上设置有螺栓孔一,所述绝缘子上段下法兰上设置有若干个聚酯筋孔、顶塔螺栓孔;所述绝缘子底段包括绝缘子底段上法兰、绝缘子底段本体、绝缘子底段下法兰,所述绝缘子底段上法兰上设置有聚酯筋孔、顶塔螺栓孔,所述绝缘子底段下法兰上设置有螺栓孔二;所述绝缘子组合段包括若干个绝缘子、聚酯筋、顶塔螺栓,所述绝缘子顶端安装于绝缘子上段下法兰,所述绝缘子底端安装于绝缘子底段上法兰,所述绝缘子上段下法兰和绝缘子底段上法兰通过若干个聚酯筋、顶塔螺栓固定连接。A large-diameter steel pipe insulation device comprises an insulator upper section, an insulator combination section and an insulator bottom section, the insulator upper section includes an insulator upper section upper flange, an insulator upper section body, and an insulator upper section lower flange, the insulator upper section upper flange is provided with There are bolt holes one, the lower flange of the upper section of the insulator is provided with a number of polyester rib holes and top tower bolt holes; the bottom section of the insulator includes the upper flange of the insulator bottom section, the insulator bottom section body, and the insulator bottom section. The upper flange of the bottom section of the insulator is provided with polyester rib holes and top tower bolt holes, and the lower flange of the bottom section of the insulator is provided with two bolt holes; the insulator assembly section includes several insulators, polyester Ribs and top tower bolts, the top of the insulator is mounted on the lower flange of the upper section of the insulator, the bottom end of the insulator is mounted on the upper flange of the bottom section of the insulator, the lower flange of the upper section of the insulator and the upper flange of the bottom section of the insulator pass through a number of joints. Ester bars and top tower bolts are fixedly connected.
进一步地,所述绝缘子上段下法兰和绝缘子底段上法兰的直径为0.8-3米。Further, the diameters of the lower flange of the upper section of the insulator and the upper flange of the bottom section of the insulator are 0.8-3 meters.
进一步地,所述顶塔螺栓包括顶塔螺杆、顶塔螺杆螺母、顶塔螺杆垫片,所述顶塔螺杆贯穿顶塔螺杆螺母、顶塔螺杆垫片将绝缘子上段下法兰和绝缘子底段上法兰固定在一起。Further, the top tower bolt includes a top tower screw, a top tower screw nut, and a top tower screw gasket, and the top tower screw penetrates the top tower screw nut and the top tower screw gasket to connect the lower flange of the upper section of the insulator and the bottom section of the insulator. The upper flanges are fastened together.
进一步地,所述绝缘子上段下法兰上安装有防雨罩装置,所述绝缘子组合段位于防雨罩装置内部。Further, a rain cover device is installed on the lower flange of the upper section of the insulator, and the insulator assembly section is located inside the rain cover device.
进一步地,所述绝缘子上段下法兰和绝缘子底段上法兰的直径相等。Further, the diameters of the lower flange of the upper section of the insulator and the upper flange of the bottom section of the insulator are equal.
进一步地,所述绝缘子的顶部为上聚四氟乙烯环板,所述绝缘子的底部为下聚四氟乙烯环板。Further, the top of the insulator is an upper PTFE ring plate, and the bottom of the insulator is a lower PTFE ring plate.
进一步地,所述绝缘子的外径为300-500毫米,所述绝缘子的内径为100-200毫米,所述绝缘子的高度为300-500毫米。Further, the outer diameter of the insulator is 300-500 mm, the inner diameter of the insulator is 100-200 mm, and the height of the insulator is 300-500 mm.
进一步地,所述绝缘子的数量为4-12个。Further, the number of the insulators is 4-12.
一种含有大直径钢管绝缘装置的中波塔,还包括塔主柱、螺栓一、基础柱头、预埋件、塔主柱法兰、基础锚栓、放电球、放电球垂直杆和放电球水平杆,所述塔主柱底端的塔主柱法兰通过螺栓一固定于绝缘子上段上法兰,所述绝缘子底段下法兰通过基础锚栓固定于基础柱头,所述预埋件埋于基础柱头内部并与基础锚栓连接,所述预埋件通过放电球垂直杆和放电球水平杆与塔主柱连接,所述放电球水平杆上设置有放电球;所述塔主柱法兰的直径为0.8-3米。A mid-wave tower containing a large-diameter steel pipe insulation device, further comprising a tower main column, a bolt 1, a foundation column head, an embedded part, a tower main column flange, a foundation anchor bolt, a discharge ball, a discharge ball vertical rod and a discharge ball horizontal rod rod, the tower main column flange at the bottom end of the main column of the tower is fixed to the upper flange of the upper section of the insulator by bolts, the lower flange of the bottom section of the insulator is fixed to the head of the foundation column by the foundation anchor bolt, and the embedded part is buried in the foundation The inside of the column head is connected with the foundation anchor bolt, the embedded part is connected with the main column of the tower through the vertical rod of the discharge ball and the horizontal rod of the discharge ball, and the discharge ball is arranged on the horizontal rod of the discharge ball; The diameter is 0.8-3 meters.
本发明取得的有益效果如下:将大直径的圆筒形高强绝缘瓷体分解成多个小直径圆筒形高强绝缘体瓷作为抗压组件,将高强聚酯筋作为抗拉组件,同时对高强聚酯筋施加一定的预拉力,从而提高整个绝缘装置的抗侧刚度,使其不仅易于抗压,也易于抗弯和抗拉,改善了整个绝缘装置的多向受力性能,提高其韧性。The beneficial effects obtained by the invention are as follows: the large-diameter cylindrical high-strength insulating porcelain is decomposed into a plurality of small-diameter cylindrical high-strength insulating porcelains as compression components, the high-strength polyester bars are used as tensile components, and the high-strength poly The ester rib exerts a certain pre-tension force, thereby improving the lateral stiffness of the entire insulating device, making it not only easy to withstand compression, but also easy to resist bending and tension, improving the multi-directional force performance of the entire insulating device and improving its toughness.
本发明改变了传统的多个独立绝缘子的设计,创新研发了适用于大直径圆形塔柱的大直径钢管绝缘装置,使用大法兰集合了多个绝缘子。本发明中大直径钢管中波塔绝缘装置使用多个小直径圆筒形高强绝缘瓷体安装到大直径钢管中波塔的绝缘底座上,使得安装简单可行,以后维护更换容易,大幅度降低维护成本。The invention changes the traditional design of multiple independent insulators, innovatively develops a large-diameter steel pipe insulation device suitable for large-diameter circular towers, and uses large flanges to gather multiple insulators. The medium and large-diameter steel pipe mid-wave tower insulation device of the present invention uses a plurality of small-diameter cylindrical high-strength insulating ceramic bodies to be installed on the insulating base of the large-diameter steel pipe mid-wave tower, so that the installation is simple and feasible, the later maintenance and replacement are easy, and the maintenance is greatly reduced. cost.
附图说明Description of drawings
图1为大直径钢管绝缘装置A的立面剖视图;Fig. 1 is the vertical sectional view of large-diameter steel pipe insulation device A;
图2为塔主柱法兰的局部放大图;Figure 2 is a partial enlarged view of the main column flange of the tower;
图3为绝缘子上段下法兰和绝缘子底段上法兰的局部放大图;Figure 3 is a partial enlarged view of the lower flange of the upper section of the insulator and the upper flange of the bottom section of the insulator;
图4为绝缘子组合C-C处的局部放大图;Fig. 4 is a partial enlarged view of the insulator combination C-C;
图5为绝缘子底段下法兰的局部放大图;Figure 5 is a partial enlarged view of the lower flange of the bottom section of the insulator;
图6为防雨罩装置的局部放大图;Figure 6 is a partial enlarged view of the rain cover device;
图7为含有大直径钢管绝缘装置A的中波塔的结构示意图;7 is a schematic structural diagram of a mid-wave tower containing a large-diameter steel pipe insulation device A;
图8为聚酯筋的局部放大图;Fig. 8 is a partial enlarged view of polyester rib;
图9为顶塔螺栓的局部放大图;Figure 9 is a partial enlarged view of the top tower bolt;
图10为绝缘子的局部放大图;Figure 10 is a partial enlarged view of the insulator;
图中附图标记为:The reference numbers in the figure are:
1塔主柱法兰、2绝缘子上段上法兰、3螺栓一、4放电球、5放电球水平杆、6放电球垂直杆、7绝缘子、8聚酯筋、9销钉、10压制端头、11顶塔螺杆、12顶塔螺杆螺母、13顶塔螺杆垫片、14绝缘子上段下法兰、15绝缘子底段上法兰、16防雨罩装置、17绝缘子底段下法兰、18基础柱头、19基础锚栓、20预埋件、21塔主柱、22绝缘子上段、23绝缘子底段、24铣边、25车丝、26聚酯筋孔、27顶塔螺栓孔、28螺栓孔一、29螺栓孔二、30顶塔螺栓、31上聚四氟乙烯环板、32下聚四氟乙烯环板。1 tower main column flange, 2 upper flange of insulator, 3 bolt 1, 4 discharge ball, 5 discharge ball horizontal rod, 6 discharge ball vertical rod, 7 insulator, 8 polyester rib, 9 pin, 10 pressed end, 11 top tower screw, 12 top tower screw nut, 13 top tower screw gasket, 14 insulator upper section lower flange, 15 insulator bottom section upper flange, 16 rain cover device, 17 insulator bottom section lower flange, 18 foundation column head , 19 foundation anchor bolts, 20 embedded parts, 21 main column of tower, 22 upper section of insulator, 23 bottom section of insulator, 24 edge milling, 25 thread, 26 polyester rib hole, 27 top tower bolt hole, 28 bolt hole one, 29 bolt holes two, 30 top tower bolts, 31 upper PTFE ring plate, 32 lower PTFE ring plate.
具体实施方式Detailed ways
实施例1Example 1
如图1-10,一种大直径钢管绝缘装置,包括绝缘子上段22、绝缘子组合段、绝缘子底段23,所述绝缘子上段22包括绝缘子上段上法兰2、绝缘子上段本体、绝缘子上段下法兰14,所述绝缘子上段上法兰2上设置有若干个螺栓孔一28,所述绝缘子上段下法兰14上设置有若干个聚酯筋孔26和若干个顶塔螺栓孔27;所述绝缘子底段23包括绝缘子底段上法兰15、绝缘子底段本体、绝缘子底段下法兰17,所述绝缘子底段上法兰15上设置有聚酯筋孔26、顶塔螺栓孔27,所述绝缘子底段下法兰17上设置有螺栓孔二29;所述绝缘子组合段包括若干个绝缘子7、聚酯筋8、顶塔螺栓30,所述若干个绝缘子7顶端安装于一个绝缘子上段下法兰14,所述若干个绝缘子7底端安装于一个绝缘子底段上法兰15,所述一个绝缘子上段下法兰14和一个绝缘子底段上法兰15通过若干个聚酯筋8、顶塔螺栓30固定连接;所述绝缘子上段下法兰14和绝缘子底段上法兰15的直径为2米。As shown in Figure 1-10, a large-diameter steel pipe insulation device includes an insulator
所述顶塔螺栓30包括顶塔螺杆11、顶塔螺杆螺母12、顶塔螺杆垫片13,所述顶塔螺杆11贯穿顶塔螺杆螺母12、顶塔螺杆垫片13将绝缘子上段下法兰14和绝缘子底段上法兰15固定在一起。The
所述绝缘子上段下法兰14上安装有防雨罩装置16,所述绝缘子组合段位于防雨罩装置16内部。所述绝缘子上段下法兰14和绝缘子底段上法兰15的直径相等。所述绝缘子7的顶部为上聚四氟乙烯环板31,所述绝缘子7的底部为下聚四氟乙烯环板32。所述绝缘子7的外径为400毫米,所述绝缘子7的内径为150毫米,所述绝缘子7的高度为400毫米。所述绝缘子7的数量为8个。A
一种含有大直径钢管绝缘装置的中波塔,还包括塔主柱21、螺栓一3、基础柱头18、预埋件20、塔主柱法兰1、基础锚栓19、放电球4、放电球垂直杆6和放电球水平杆5,所述塔主柱21底端的塔主柱法兰1通过螺栓一3固定于绝缘子上段上法兰2,所述绝缘子底段下法兰17通过基础锚栓19固定于基础柱头18,所述预埋件20埋于基础柱头18内部并与基础锚栓19连接,所述预埋件20通过放电球垂直杆6和放电球水平杆5与塔主柱21连接,所述放电球水平杆5上设置有放电球4;所述塔主柱法兰1的直径为2米。A medium wave tower containing a large-diameter steel pipe insulation device, further comprising a tower
实施例2Example 2
所述绝缘子上段下法兰14和绝缘子底段上法兰15的直径为3米。The diameter of the lower flange 14 of the upper section of the insulator and the upper flange 15 of the lower section of the insulator is 3 meters.
所述绝缘子7的外径为500毫米,所述绝缘子7的内径为200毫米,所述绝缘子7的高度为500毫米。所述绝缘子7的数量为12个。所述塔主柱法兰1的直径为3米。The outer diameter of the
其余结构与实施例1相同。The rest of the structure is the same as that of Example 1.
实施例3Example 3
所述绝缘子上段下法兰14和绝缘子底段上法兰15的直径为0.8米。The diameter of the lower flange 14 of the upper section of the insulator and the upper flange 15 of the lower section of the insulator is 0.8 meters.
所述绝缘子7的外径为300毫米,所述绝缘子7的内径为100毫米,所述绝缘子7的高度为300毫米。所述绝缘子7的数量为4个。所述塔主柱法兰1的直径为0.8米。The outer diameter of the
其余结构与实施例1相同。The rest of the structure is the same as that of Example 1.
Claims (9)
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GB352010A (en) * | 1929-03-25 | 1931-06-25 | Kent Allen Hawley | Improvements in or relating to electrical insulators |
CN2249968Y (en) * | 1996-04-12 | 1997-03-19 | 青岛东方铁塔公司 | Insulating base of self-supporting medium wave launching tower |
CN1563650A (en) * | 2004-04-07 | 2005-01-12 | 韩克荣 | Insulator foot self-supported launching tower in medium wave |
JP2008071674A (en) * | 2006-09-15 | 2008-03-27 | Meidensha Corp | Supporting insulator |
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CN205046929U (en) * | 2015-09-24 | 2016-02-24 | 青岛中天斯壮科技有限公司 | Multidirectional atress insulating column base of polyester that excels in |
CN214542498U (en) * | 2021-03-15 | 2021-10-29 | 咸阳广通电子科技有限公司 | Large-load bottom insulation device for large-tonnage medium-wave broadcast transmitting antenna tower |
CN217176025U (en) * | 2022-03-17 | 2022-08-12 | 青岛中天斯壮科技有限公司 | Large-diameter steel pipe insulation device and medium wave tower comprising same |
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2022
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Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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GB352010A (en) * | 1929-03-25 | 1931-06-25 | Kent Allen Hawley | Improvements in or relating to electrical insulators |
CN2249968Y (en) * | 1996-04-12 | 1997-03-19 | 青岛东方铁塔公司 | Insulating base of self-supporting medium wave launching tower |
CN1563650A (en) * | 2004-04-07 | 2005-01-12 | 韩克荣 | Insulator foot self-supported launching tower in medium wave |
JP2008071674A (en) * | 2006-09-15 | 2008-03-27 | Meidensha Corp | Supporting insulator |
CN201289767Y (en) * | 2008-11-14 | 2009-08-12 | 北京京密瑞尔广播电视设备有限公司 | Insulator of medium wave transmission tower subbase |
CN205046929U (en) * | 2015-09-24 | 2016-02-24 | 青岛中天斯壮科技有限公司 | Multidirectional atress insulating column base of polyester that excels in |
CN214542498U (en) * | 2021-03-15 | 2021-10-29 | 咸阳广通电子科技有限公司 | Large-load bottom insulation device for large-tonnage medium-wave broadcast transmitting antenna tower |
CN217176025U (en) * | 2022-03-17 | 2022-08-12 | 青岛中天斯壮科技有限公司 | Large-diameter steel pipe insulation device and medium wave tower comprising same |
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