CN204559058U - A kind of Novel free weldering shelf support - Google Patents
A kind of Novel free weldering shelf support Download PDFInfo
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- CN204559058U CN204559058U CN201520093172.8U CN201520093172U CN204559058U CN 204559058 U CN204559058 U CN 204559058U CN 201520093172 U CN201520093172 U CN 201520093172U CN 204559058 U CN204559058 U CN 204559058U
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- upright post
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Abstract
A kind of Novel free weldering shelf support, bracket upright post and support base Guang, bracket upright post cross section is C-shaped is integral type structure; Bracket upright post is provided with convex force, location and force located by pivot pin; Force, convex location is positioned in bracket upright post main body; Force, pivot pin location is waist-shaped hole, is obliquely installed on bracket upright post side; The U-shaped structure in support base Guang cross section, support base Guang mainboard is provided with multiple cable clasp hole, support base Guang backplate is trapezoidal, support base Guang is established pivot pin snap close force; Support base Guang bottom cover is positioned at bracket upright post, support base Guang top is positioned at below force, convex location, be provided with pivot pin between bracket upright post and support base Guang, pivot pin makes support base Guang through pivot pin force, location and pivot pin snap close force and realizes between bracket upright post pressing, draw, buckle structure is connected.Electric welding, detachable form are exempted from formation; Can cross-operation, convenient, reduction of erection time is installed, alleviates transhipment burden, to construction coordination, there is favorable compatibility.
Description
Technical field
The utility model relates to a kind of Novel free weldering shelf support, belongs to high-density cable and additionally arranges field.
Background technology
The industry distribution line high-density cable such as current electric power, chemical industry, traffic is laid, the traditional angle steel column of most employing and angle steel holder Guang, coverlay welding, single or multiple lift holder Guang support.In process of production, electrically welding accounts for the production work amount of overall 50% to this product, and product surface process, as galvanizing, electrostatic plastic spraying etc., must through chemical pickling technique.Consume a large amount of labour, the energy, environmental pollution is serious, and unfavorable worker's is healthy.Angle steel column and angle steel holder Guang, in coverlay welding crack, chemical soiling solution is difficult to remove, and cause in the short time, chemical soiling solution overflows by crack; Corrosion shells, and surface layer is coarse, affects support useful life.Especially national grid send power transformation multi-purpose project, less than expection Replacement and Repair, loses inestimable.High-density cable region is all the confined space, and especially cable trough, groove, width only have about one meter, bilateral or one meter one pair, one-sided interval, multilayer or individual layer holder Guang support.Hundreds of rice, heavy caliber, cable laying workshop section, job site, found into queue as the sea of faces, by heavy caliber cable, being struggle with successively arranged in interval by ditch, groove, bottom only has 20 cm, between support base Guang and holder Guang, welding support inconvenience dismounting, conversion, can not cross-operation, complicated in mistake that installation rate is slow, long in time limit, cable crosses, mechanism cannot operation, and accident is easily sent out.Electrical network send power transformation multi-purpose project, generally all remote region, long distance city.Traditional angle steel welding support poor compatibility, transport and construction, workshop section's Cost for Coordination is expensive.
Utility model content
For overcoming the defect of prior art, the purpose of this utility model is to provide a kind of Novel free to weld shelf support, selects steel and aluminum alloy material, is formed and exempt from welding, detachable form; Support moulded production, do mechanization operation, region is additionally arranged to high-density cable, can cross-operation, convenient, reduction of erection time is installed, alleviates transhipment burden, to construction coordination, there is favorable compatibility.
The utility model technical solution problem adopts following technical scheme:
A kind of Novel free weldering shelf support
,comprise: bracket upright post and support base Guang, wherein, described bracket upright post is in vertically arranging, and comprise upright post main and be arranged on the flanging of upright post main both sides, described bracket upright post cross section is C-shaped, is integral type structure; Described bracket upright post is provided with multiple convex force, location and force located by multiple pivot pin; Force, described convex location is positioned in described bracket upright post main body, in bulge-structure, rack body is vertically distribution; Force, described pivot pin location is waist-shaped hole, and be obliquely installed on told bracket upright post side, in vertically distribution, the pivot pin detent force point quantity on described two bracket upright post sides is identical, and position is corresponding;
Described support base Guang is integral structure, comprise holder Guang mainboard and the vertical backplate arranging and hold in the palm Guang mainboard both sides, the U-shaped structure in cross section of described support base Guang, described support base Guang mainboard is rectangle, described support base Guang mainboard is provided with multiple cable clasp hole, rounded hole, described cable clasp hole, laterally distributed on support base Guang mainboard; Described support base Guang backplate is trapezoidal, one end, long limit is support base Guang top, minor face one end is support base Guang terminal, described two support base Guang backplates are equipped with pivot pin snap close force, described pivot pin snap close force is that waist-shaped hole is positioned at position, described trapezoidal backplate top, described two pivot pin snap close force sizes, shape are identical, and position is in being oppositely arranged;
Described support base Guang bottom cover is positioned at described bracket upright post, described support base Guang top is positioned at below force, convex location, pivot pin is provided with between described bracket upright post and support base Guang, key pin is provided with bottom described pivot pin, described pivot pin and key pin are integral type structure, and described pivot pin makes support base Guang through force, pivot pin location with pivot pin snap close force and realizes between bracket upright post being connected.
Above-mentioned a kind of Novel free weldering shelf support, wherein, described pivot pin cross section is rounded, and described key pin is that the body of rod is positioned at centre position bottom pivot pin, the curved structure of described key pin section-bottom.
Above-mentioned a kind of Novel free weldering shelf support, wherein, described pivot pin cross section is circular arc, and described key pin cross section is inverted cone-shaped structure, in circular arc bottom described key pin.
Above-mentioned a kind of Novel free weldering shelf support, wherein, described pivot pin cross section is rounded, and described key pin is that the body of rod is positioned at centre position bottom pivot pin, and described key pin section-bottom is inverted trapezoidal structure.
Above-mentioned a kind of Novel free weldering shelf support, wherein, described pivot pin cross section is rounded, and described key pin is that the body of rod is positioned at centre position bottom pivot pin, and described key pin section-bottom is del structure.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, force, bracket upright post convex location is set, vertically can locates and bear vertical direction and upwarp power; During use, support base Guang inclination certain angle inserts column, by carve profile shaft pin, press to 90 degree, pivot pin fastens column and holder Guang, and make column vertical with holder Guang, use simply, be connected firmly, Easy open is not out of shape.By " press, draw, detain " action, support connective stability can be ensured, replace original angle bar frame, remove angle original steel welding support poor compatibility from, the possibility of dismounting difficulty.
2, ask Guang to insert column by upper pivot pin, registration, does not offset, and reliable and stable.Column and the stressed employing lever principle of holder Guang, special construction is detachable.
3, pivot pin is by the upper rear effect because of key pin bias, and only caning turn to certain angle can take out, and makes pivot pin not slippage due to the left and right of eccentric key pin, installs reliably simultaneously, realize detachable, simple to operate in realization.
4, material uses steel, aluminium alloy, high-strength aluminum alloy; Steel side hot galvanizing, aluminium alloy, high-strength aluminum alloy surface anodization, electrophoresis.Smooth surface is beautiful, and useful life is the double of traditional welding support.
5, this Novel free weldering rack bearing power is strong, avoid the weld seam out-of-flatness because welding causes, welding slag, the unfavorable factors such as steel hot galvanizing rust water, save labour, shorten and make the duration, reduce packed and transported require and structure optimization, installation are convenient, good looking appearance, energy-efficient.
6, moulded production, do mechanization operation.Low energy consumption, pollution-free, energy-efficient, element structure is novel, assembling is neat, and system interchangeability is suitable for flexibly.
7, there is good compatibility, make full use of transport, stack space, but transport and be able to good coordination.
8, stressed reliable, stablize primary structure member---shaped steel and fastener detachable member coordinate precise and stable, shock resistance to shake, and support node has higher-strength.
9, installation rate is fast, and installation rate is 5-6 times of traditional method, and installation cost reduces by 50%, and each professional workers cross-operation can improve work efficiency, reduction of erection time.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is bracket upright post structural representation of the present utility model.
Fig. 3 is support base Guang structural representation of the present utility model.
Fig. 4 is the structural representation of pivot pin of the present utility model.
Fig. 5 is pivot pin sectional view in embodiment 1.
Fig. 6 is pivot pin sectional view in embodiment 2.
Fig. 7 is pivot pin sectional view in embodiment 3.
Fig. 8 is pivot pin sectional view in embodiment 4.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
embodiment 1
A kind of Novel free weldering shelf support
,comprise: bracket upright post 2 and support base Guang 6, wherein, described bracket upright post 2 is in vertically arranging, and comprise upright post main 21 and be arranged on the flanging of upright post main 22 both sides, described bracket upright post 2 cross section is C-shaped, is integral type structure; Described bracket upright post 2 is provided with force, multiple convex location 3 and locates force 5 with multiple pivot pin; Force 3, described convex location is positioned in described bracket upright post main body 21, in stretching bulge-structure, rack body 21 is vertically by specification demands distribution, and force 3, described convex location quantity is three; Force 5, described pivot pin location is waist-shaped hole 8, is obliquely installed on told bracket upright post side 22, and in vertically pressing specification demands distribution, force 5, the pivot pin location quantity on described two bracket upright post sides 22 is identical, and position is corresponding;
Described support base Guang 6 is in integral structure, comprise holder Guang mainboard 61 and the vertical backplate 62 arranging and hold in the palm Guang mainboard both sides, the U-shaped structure in cross section of described support base Guang 6, described support base Guang mainboard 61 is rectangle, described support base Guang mainboard 61 is provided with multiple cable clasp hole 7, ovalize hole, described cable clasp hole 7, in laterally pressing specification demands distribution on support base Guang mainboard 61; Described support base Guang backplate 62 is in trapezoidal, one end, long limit is support base Guang 6 top, minor face one end is support base Guang 6 terminal, described two support base Guang backplates 62 are equipped with pivot pin snap close force 8, described pivot pin snap close force 8 is mounting hole, be positioned at described trapezoidal backplate 62 bottom position, described pivot pin snap close force 8 size, shape are identical, and position is in being oppositely arranged;
Described support base Guang 6 bottom cover is positioned at described bracket upright post 2, described support base Guang 6 top is positioned at below force 3, convex location, pivot pin 1 is provided with between described bracket upright post 2 and support base Guang 6, key pin 4 is provided with bottom described pivot pin 1, described pivot pin 1 is integral type structure with key pin 4, and described pivot pin 1 makes to realize between support base Guang 6 with bracket upright post 2 being connected through waist-shaped hole 8.Described pivot pin 1 cross section is rounded, and described key pin 4 is positioned at centre position bottom pivot pin 1, the curved structure of described key pin 4 section-bottom in the body of rod.
embodiment 2
A kind of Novel free weldering shelf support
,comprise: bracket upright post 2 and support base Guang 6, wherein, described bracket upright post 2 is in vertically arranging, and comprise upright post main 21 and be arranged on the flanging of upright post main 22 both sides, described bracket upright post 2 cross section is C-shaped, is integral type structure; Described bracket upright post 2 is provided with force, multiple convex location 3 and locates force 5 with multiple pivot pin; Force 3, described convex location is positioned in described bracket upright post main body 21, in stretching bulge-structure, rack body 21 is vertically by specification demands distribution, and force 3, described convex location quantity is three; Force 5, described pivot pin location is waist-shaped hole 8, is obliquely installed on told bracket upright post side 22, and in vertically pressing specification demands distribution, force 5, the pivot pin location quantity on described two bracket upright post sides 22 is identical, and position is corresponding;
Described support base Guang 6 is in integral structure, comprise holder Guang mainboard 61 and the vertical backplate 62 arranging and hold in the palm Guang mainboard both sides, the U-shaped structure in cross section of described support base Guang 6, described support base Guang mainboard 61 is rectangle, described support base Guang mainboard 61 is provided with multiple cable clasp hole 7, ovalize hole, described cable clasp hole 7, in laterally pressing specification demands distribution on support base Guang mainboard 61; Described support base Guang backplate 62 is in trapezoidal, one end, long limit is support base Guang 6 top, minor face one end is support base Guang 6 terminal, described two support base Guang backplates 62 are equipped with pivot pin snap close force 8, described pivot pin snap close force 8 is mounting hole, be positioned at described trapezoidal backplate 62 bottom position, described pivot pin snap close force 8 size, shape are identical, and position is in being oppositely arranged;
Described support base Guang 6 bottom cover is positioned at described bracket upright post 2, described support base Guang 6 top is positioned at below force 3, convex location, pivot pin 1 is provided with between described bracket upright post 2 and support base Guang 6, key pin 4 is provided with bottom described pivot pin 1, described pivot pin 1 is integral type structure with key pin 4, and described pivot pin 1 makes to realize between support base Guang 6 with bracket upright post 2 being connected through waist-shaped hole 8.Described pivot pin 1 cross section is circular arc, and described key pin 4 cross section is inverted cone-shaped structure, in circular arc bottom described key pin 4.
embodiment 3
A kind of Novel free weldering shelf support
,comprise: bracket upright post 2 and support base Guang 6, wherein, described bracket upright post 2 is in vertically arranging, and comprise upright post main 21 and be arranged on the flanging of upright post main 22 both sides, described bracket upright post 2 cross section is C-shaped, is integral type structure; Described bracket upright post 2 is provided with force, multiple convex location 3 and locates force 5 with multiple pivot pin; Force 3, described convex location is positioned in described bracket upright post main body 21, in stretching bulge-structure, rack body 21 is vertically by specification demands distribution, and force 3, described convex location quantity is three; Force 5, described pivot pin location is waist-shaped hole 8, is obliquely installed on told bracket upright post side 22, and in vertically pressing specification demands distribution, force 5, the pivot pin location quantity on described two bracket upright post sides 22 is identical, and position is corresponding;
Described support base Guang 6 is in integral structure, comprise holder Guang mainboard 61 and the vertical backplate 62 arranging and hold in the palm Guang mainboard both sides, the U-shaped structure in cross section of described support base Guang 6, described support base Guang mainboard 61 is rectangle, described support base Guang mainboard 61 is provided with multiple cable clasp hole 7, ovalize hole, described cable clasp hole 7, in laterally pressing specification demands distribution on support base Guang mainboard 61; Described support base Guang backplate 62 is in trapezoidal, one end, long limit is support base Guang 6 top, minor face one end is support base Guang 6 terminal, described two support base Guang backplates 62 are equipped with pivot pin snap close force 8, described pivot pin snap close force 8 is mounting hole, be positioned at described trapezoidal backplate 62 bottom position, described pivot pin snap close force 8 size, shape are identical, and position is in being oppositely arranged;
Described support base Guang 6 bottom cover is positioned at described bracket upright post 2, described support base Guang 6 top is positioned at below force 3, convex location, pivot pin 1 is provided with between described bracket upright post 2 and support base Guang 6, key pin 4 is provided with bottom described pivot pin 1, described pivot pin 1 is integral type structure with key pin 4, and described pivot pin 1 makes to realize between support base Guang 6 with bracket upright post 2 being connected through waist-shaped hole 8.Described pivot pin 1 cross section is rounded, and described key pin 4 is positioned at centre position bottom pivot pin in the body of rod, and described key pin 4 section-bottom is inverted trapezoidal structure.
embodiment 4
A kind of Novel free weldering shelf support
,comprise: bracket upright post 2 and support base Guang 6, wherein, described bracket upright post 2 is in vertically arranging, and comprise upright post main 21 and be arranged on the flanging of upright post main 22 both sides, described bracket upright post 2 cross section is C-shaped, is integral type structure; Described bracket upright post 2 is provided with force, multiple convex location 3 and locates force 5 with multiple pivot pin; Force 3, described convex location is positioned in described bracket upright post main body 21, in stretching bulge-structure, rack body 21 is vertically by specification demands distribution, and force 3, described convex location quantity is three; Force 5, described pivot pin location is waist-shaped hole 8, is obliquely installed on told bracket upright post side 22, and in vertically pressing specification demands distribution, force 5, the pivot pin location quantity on described two bracket upright post sides 22 is identical, and position is corresponding;
Described support base Guang 6 is in integral structure, comprise holder Guang mainboard 61 and the vertical backplate 62 arranging and hold in the palm Guang mainboard both sides, the U-shaped structure in cross section of described support base Guang 6, described support base Guang mainboard 61 is rectangle, described support base Guang mainboard 61 is provided with multiple cable clasp hole 7, ovalize hole, described cable clasp hole 7, in laterally pressing specification demands distribution on support base Guang mainboard 61; Described support base Guang backplate 62 is in trapezoidal, one end, long limit is support base Guang 6 top, minor face one end is support base Guang 6 terminal, described two support base Guang backplates 62 are equipped with pivot pin snap close force 8, described pivot pin snap close force 8 is mounting hole, be positioned at described trapezoidal backplate 62 bottom position, described pivot pin snap close force 8 size, shape are identical, and position is in being oppositely arranged;
Described support base Guang 6 bottom cover is positioned at described bracket upright post 2, described support base Guang 6 top is positioned at below force 3, convex location, pivot pin 1 is provided with between described bracket upright post 2 and support base Guang 6, key pin 4 is provided with bottom described pivot pin 1, described pivot pin 1 is integral type structure with key pin 4, and described pivot pin 1 makes to realize between support base Guang 6 with bracket upright post 2 being connected through waist-shaped hole 8.Described pivot pin 1 cross section is rounded, and described key pin 4 is positioned at centre position bottom pivot pin 1 in the body of rod, and described key pin 4 section-bottom is del structure.
In above-described embodiment, prove through overtesting, because the pivot pin shape in embodiment one is special, can firmly connection bracket column and support base Guang, its result of use is best, and clamping effect is best.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
Force, bracket upright post convex location is set, vertically can locates and bear vertical direction and upwarp power; During use, support base Guang inclination certain angle inserts column, by carve profile shaft pin, press to 90 degree, pivot pin fastens column and holder Guang, and make column vertical with holder Guang, use simply, be connected firmly, Easy open is not out of shape.By " press, draw, detain " action, support connective stability can be ensured, replace original angle bar frame, remove angle original steel welding support poor compatibility from, the possibility of dismounting difficulty.
Holder Guang inserts column by upper pivot pin, and registration, does not offset, and reliable and stable.Column and the stressed employing lever principle of holder Guang, special construction is detachable.Pivot pin is by the upper rear effect because of key pin bias, and only caning turn to certain angle can take out, and makes pivot pin not slippage due to the left and right of eccentric key pin, installs reliably simultaneously, realize detachable, simple to operate in realization.
Material uses steel, aluminium alloy, high-strength aluminum alloy; Steel side hot galvanizing, aluminium alloy, high-strength aluminum alloy surface anodization, electrophoresis.Smooth surface is beautiful, and useful life is the double of traditional welding support.
This Novel free weldering rack bearing power is strong, avoid the weld seam out-of-flatness because welding causes, welding slag, the unfavorable factors such as steel hot galvanizing rust water, save labour, shorten and make the duration, reduce packed and transported require and structure optimization, installation are convenient, good looking appearance, energy-efficient.
Moulded production, do mechanization operation.Low energy consumption, pollution-free, energy-efficient, element structure is novel, assembling is neat, and system interchangeability is suitable for flexibly.
There is good compatibility, make full use of transport, stack space, but transport and be able to good coordination.Stressed reliable, stablize primary structure member---shaped steel and fastener detachable member coordinate precise and stable, shock resistance to shake, and support node has higher-strength.Installation rate is fast, and installation rate is 5-6 times of traditional method, and installation cost reduces by 50%, and each professional workers cross-operation can improve work efficiency, reduction of erection time.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (5)
1. a Novel free weldering shelf support
,comprise: bracket upright post and support base Guang, is characterized in that, described bracket upright post is vertical setting, comprise upright post main and be arranged on the flanging of upright post main both sides, described bracket upright post cross section is C-shaped, is integral type structure; Described bracket upright post is provided with multiple convex force, location and force located by multiple pivot pin; Force, described convex location is positioned in described bracket upright post main body, in stretching bulge-structure, rack body is vertical distribution; Force, described pivot pin location is waist-shaped hole, and be obliquely installed on described bracket upright post side, be in vertical distribution, the pivot pin detent force point quantity on described two bracket upright post sides is identical, and position is corresponding;
Described support base Guang is integral structure, comprise holder Guang mainboard and the vertical backplate arranging and hold in the palm Guang mainboard both sides, the U-shaped structure in cross section of described support base Guang, described support base Guang mainboard is rectangle, described support base Guang mainboard is provided with multiple cable clasp hole, ovalize hole, described cable clasp hole, laterally distributed on support base Guang mainboard; Described support base Guang backplate is trapezoidal, one end, long limit is support base Guang top, minor face one end is support base Guang terminal, described two support base Guang backplates are equipped with pivot pin snap close force, described pivot pin snap close force is that waist-shaped hole is positioned at position, described trapezoidal backplate top, described two pivot pin snap close force sizes, shape are identical, and position is in being oppositely arranged;
Described support base Guang bottom cover is positioned at described bracket upright post, described support base Guang top is positioned at below force, convex location, pivot pin is provided with between described bracket upright post and support base Guang, key pin is provided with bottom described pivot pin, described pivot pin and key pin are integral type structure, and described pivot pin makes to realize between support base Guang and bracket upright post to press through pivot pin force, location and pivot pin snap close force, draw, locking connection structure.
2. a kind of Novel free weldering shelf support as claimed in claim 1, it is characterized in that, wherein, described pivot pin cross section is rounded, and described key pin is that the body of rod is positioned at centre position bottom pivot pin, the curved structure of described key pin section-bottom.
3. a kind of Novel free weldering shelf support as claimed in claim 1, it is characterized in that, described pivot pin cross section is circular arc, and described key pin cross section is inverted cone-shaped structure, in circular arc bottom described key pin.
4. a kind of Novel free weldering shelf support as claimed in claim 1, it is characterized in that, described pivot pin cross section is rounded, and described key pin is that the body of rod is positioned at centre position bottom pivot pin, and described key pin section-bottom is inverted trapezoidal structure.
5. a kind of Novel free weldering shelf support as claimed in claim 1, it is characterized in that, described pivot pin cross section is rounded, and described key pin is that the body of rod is positioned at centre position bottom pivot pin, and described key pin section-bottom is del structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093172.8U CN204559058U (en) | 2015-02-10 | 2015-02-10 | A kind of Novel free weldering shelf support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093172.8U CN204559058U (en) | 2015-02-10 | 2015-02-10 | A kind of Novel free weldering shelf support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559058U true CN204559058U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520093172.8U Expired - Fee Related CN204559058U (en) | 2015-02-10 | 2015-02-10 | A kind of Novel free weldering shelf support |
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| CN (1) | CN204559058U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810776A (en) * | 2015-02-10 | 2015-07-29 | 江苏腾宇电能设备有限公司 | Novel welding-free detachable bracket |
| CN109038452A (en) * | 2018-09-04 | 2018-12-18 | 广东电网有限责任公司 | Pre-buried cable support and method for laying control cable in cable trench |
| CN109066561A (en) * | 2018-09-04 | 2018-12-21 | 广东电网有限责任公司 | Pre-buried cable support and method for laying control cable in cable trench |
-
2015
- 2015-02-10 CN CN201520093172.8U patent/CN204559058U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810776A (en) * | 2015-02-10 | 2015-07-29 | 江苏腾宇电能设备有限公司 | Novel welding-free detachable bracket |
| CN109038452A (en) * | 2018-09-04 | 2018-12-18 | 广东电网有限责任公司 | Pre-buried cable support and method for laying control cable in cable trench |
| CN109066561A (en) * | 2018-09-04 | 2018-12-21 | 广东电网有限责任公司 | Pre-buried cable support and method for laying control cable in cable trench |
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Granted publication date: 20150812 Termination date: 20160210 |
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