CN111900690A - Special hardware fitting for ground wire ice melting - Google Patents
Special hardware fitting for ground wire ice melting Download PDFInfo
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- CN111900690A CN111900690A CN202010861557.XA CN202010861557A CN111900690A CN 111900690 A CN111900690 A CN 111900690A CN 202010861557 A CN202010861557 A CN 202010861557A CN 111900690 A CN111900690 A CN 111900690A
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- Prior art keywords
- gland
- wire
- clamp body
- ground wire
- hardware fitting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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Abstract
The invention provides a hardware fitting special for ground wire ice melting, which comprises: the drainage structure has a conductive function and is respectively connected with the two wire clamp structures; the cable clamp structure comprises a cable clamp body and a gland which are hinged with each other, wherein the cable clamp body and the gland are provided with arc grooves which are arranged correspondingly with each other, the arc grooves of the cable clamp body and the gland can form a cavity for placing an optical cable, a thin sheet conducting layer for coating the optical cable is arranged in the cavity, the thin sheet conducting layer and the cable clamp body are welded into a whole, and an elastic deformation layer for filling a space is arranged between the thin sheet conducting layer and the inner wall of the cavity; and the locking structure is used for fixing the relative position of the gland and the wire clamp body.
Description
Technical Field
The invention relates to the technical field of electrician hardware fittings, in particular to a hardware fitting special for ground wire ice melting.
Background
The optical cable parallel fitting is used for deicing the ground wire of the overhead transmission line, has the advantages of strong through-current capacity, light weight, convenience in carrying, flexibility in disassembly and the like, and is used for breaking the connection between optical cables to form a closed loop.
The traditional ice melting parallel connection wire device adopts a common parallel groove clamp. The body and the gland are processed by blanking in a sectional material mode, the bolt is anti-loose by adopting a traditional spring gasket, and the bolt is easy to loose due to the difference of the thermal expansion coefficients of materials when the ice melts and passes through large current, so that more heat is generated. The common parallel groove clamp has smaller current capacity, the current function of large current is usually realized by adopting a mode of connecting a plurality of clamps in parallel, the wire clamp has small applicable wire diameter range, and the connection of an optical cable with slight deviation of the wire diameter can generate larger contact resistance and heat. The heat generated by the above disadvantages not only wastes electrical energy, but may also burn out components causing ice melting disruption and damage to the cable.
Disclosure of Invention
Therefore, the special hardware for ground wire ice melting can reduce heat generation in all directions in order to overcome the problem that the parallel groove clamp in the prior art is easy to generate more heat when melting ice through large current.
The design scheme of the invention is as follows:
a hardware fitting special for ground wire ice melting comprises: the drainage structure has a conductive function and is respectively connected with the two wire clamp structures; the cable clamp structure comprises a cable clamp body and a gland which are hinged with each other, the cable clamp body and the gland are provided with arc grooves which are arranged correspondingly with each other, the arc grooves of the cable clamp body and the gland can form a cavity for placing an optical cable, a thin sheet conducting layer for coating the optical cable is arranged in the cavity, the thin sheet conducting layer and the drainage structure are welded into a whole, and an elastic deformation layer for filling a space is arranged between the thin sheet conducting layer and the inner wall of the cavity; and the locking structure is used for fixing the relative position of the gland and the wire clamp body.
Preferably, the locking structure is a self-locking structure, one end of the locking structure is hinged to the wire clamp body, an elastic reset structure is arranged at the hinged position, and the other end of the locking structure is clamped with the pressing cover and used for fixing the relative position of the pressing cover and the wire clamp body.
Preferably, the laminar conductive layer comprises a number of aluminium sheets.
Preferably, the wire clamp structure is made of aluminum.
Preferably, the elastic deformation layer is a rubber tile.
Preferably, the drainage structure comprises a crimped pure aluminum stranded wire and two compression type equipment wire clamps, and the drainage structure can be freely bent to any angle.
Preferably, the wire clamp structure and the drainage structure are detachably connected through bolts.
The technical scheme of the invention has the following advantages:
1. the invention provides a hardware fitting special for ground wire ice melting, which comprises: the drainage structure has a conductive function and is respectively connected with the two wire clamp structures; the cable clamp structure comprises a cable clamp body and a gland which are hinged with each other, the cable clamp body and the gland are provided with arc grooves which are arranged correspondingly with each other, the arc grooves of the cable clamp body and the gland can form a cavity for placing an optical cable, a thin sheet conducting layer for coating the optical cable is arranged in the cavity, the thin sheet conducting layer is in conducting connection with the drainage structure, and an elastic deformation layer for filling a space is arranged between the thin sheet conducting layer and the inner wall of the cavity; and the locking structure is used for fixing the relative position of the gland and the wire clamp body. In the development process, the problem that the common parallel groove clamp generates excessive heat is mainly caused by the following two reasons: 1) the parallel groove clamp has a small range of applicable wire diameter, and when the parallel groove clamp is connected with an optical cable with slight deviation of wire diameter, the parallel groove clamp cannot be completely attached, so that the conductive area is only a narrow surface internally tangent and contacted with the outer wall of the optical cable and the inner wall of the clamp, and larger contact resistance can be generated, and more redundant heat can be generated under the condition of constant current quantity; 2) when the ice melts and passes through a large current, the ice melting device is easy to loosen due to the difference of the thermal expansion coefficients of the materials, so that more heat is generated. When the hardware fitting disclosed by the invention is in a clamping working state, the optical cable is not directly contacted with the inner wall of the wire clamp, but is firstly coated by the sheet conducting layer, and because the sheet has certain flexibility, a passage with enough flow area can be formed after the optical cable is coated by multiple layers. On the top, an elastic deformation layer is arranged outside the thin conductive layer, and the deformation layer gives a certain pressure to the thin conductive layer, so that excessive expansion deformation is prevented firstly, and the thin conductive layer can be restored to continue supporting after expansion and restoration. Finally, compare and connect optical cable in same cavity parallelly connected in traditional parallel groove clamp, two cable clamp bodies are located respectively to this golden utensil, and rethread drainage structure UNICOM has also reduced the optical cable contact surface big enough or not enough even, leads to the problem that local resistance is too high to generate heat. The problems of generating redundant heat in the existing parallel groove clamp are effectively solved by the measures.
2. The hardware fitting special for ground wire ice melting provided by the invention has the advantages that the locking structure is a self-locking structure, one end of the locking structure is hinged with the wire clamp body, the hinged part is provided with the elastic reset structure, and the other end of the locking structure is clamped with the gland and is used for fixing the relative position of the gland and the wire clamp body. Traditional fastener body and gland adopt section bar mode unloading processing, and the bolt adopts traditional spring shim to come locking, takes place to become flexible because of material thermal expansion coefficient difference easily when the ice-melt passes through the heavy current, and the bolt material generally is steel simultaneously, and resistance is great, and two above reasons also can lead to producing more heats. The invention adopts the thin conductive layer with high conductive efficiency, is attached to the excircle of the optical cable by the compression of the elastomer, has large contact area and good contact quality, reduces the heating, and can also reduce the looseness caused by thermal expansion due to the elastic connection.
3. The drainage structure comprises a crimped pure aluminum stranded wire and two compression type equipment wire clamps, and can be freely bent to any angle, so that the position and the angle of an optical cable do not need to be adjusted, the installation is greatly facilitated, and the parallel connection of two optical cables in different relative positions and distances is met.
4. According to the hardware fitting special for ground wire ice melting, the wire clamp structure is detachably connected with the drainage structure through the bolt, and due to the fact that ice melting is performed temporarily and the parallel optical cable is not normal, compared with the fixed wire clamp in other fields, the hardware fitting has the condition of being detached quickly at any time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a hardware clamp structure special for ground wire ice melting of the present invention;
fig. 2 is a schematic view of the overall structure of the ground wire ice-melting dedicated hardware fitting of the present invention.
Description of reference numerals: 1-a wire clamp body; 2-pressing the cover; 3-an optical cable; 4-a laminar conductive layer; 5-an elastically deformable layer; 6-self-locking structure; 7-pure aluminum stranded wire; 8-compression type equipment wire clamp.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 and fig. 2 show a dedicated ground wire ice melting hardware fitting provided by the present invention, which includes:
the drainage structure with the conductive function comprises a crimped pure aluminum stranded wire 7 and two compression type equipment wire clamps 8, and can be freely bent at any angle, so that the position and the angle of the optical cable 3 do not need to be adjusted, the installation is greatly facilitated, and the parallel connection of two optical cables 3 with different relative positions and distances is met. The drainage structure can be detachably connected with the two wire clamp structures through the bolts respectively, and the ice melting is temporary work, and the parallel optical cable 3 is also in an abnormal state, so that the metal tool has the condition of being quickly detached at any time compared with fixed wire clamps in other fields.
The fastener structure, it is made of aluminium, including mutual articulated fastener body 1 and gland 2, fastener body 1 with gland 2 has the arc recess that corresponds the setting each other, the two the arc recess can constitute a cavity that is used for placing optical cable 3.
The cavity is internally provided with a thin sheet conducting layer 4 for coating the optical cable 3, the thin sheet conducting layer 4 comprises a plurality of layers of thin aluminum sheets, the thin sheet conducting layer 4 is in conductive connection with the drainage structure, and the thin sheet conducting layer 4 is in conductive connection with a rubber tile which is used for filling space and is arranged between the inner walls of the cavity and used as an elastic deformation layer 5. In the development process, the problem that the common parallel groove clamp generates excessive heat is mainly caused by the following two reasons: 1) the parallel groove clamp has a small applicable wire diameter range, and when the parallel groove clamp is connected with an optical cable 3 with a slight deviation of wire diameter, the parallel groove clamp cannot be completely attached, so that the conductive area is only a narrow surface of the inner contact between the outer wall of the optical cable 3 and the inner wall of the clamp, and a larger contact resistance can be generated, and more redundant heat can be generated under the condition of constant current quantity; 2) when the ice melts and passes through a large current, the ice melting device is easy to loosen due to the difference of the thermal expansion coefficients of the materials, so that more heat is generated. When the hardware disclosed by the invention is in a clamping working state, the optical cable 3 is not directly contacted with the inner wall of the cable clamp, but the sheet conducting layer 4 is firstly used for coating, and as the sheet has certain flexibility, a passage with enough flow area can be formed after the optical cable 3 is coated by multiple layers. In addition to the conductive sheet layer 4, an elastic deformation layer 5 is provided, which applies a certain pressure to the conductive sheet layer 4, and which prevents excessive expansion deformation, and which can be restored after expansion and recovery to continue the support. Finally, compare and purchase the fastener and connect optical cable 3 in same cavity parallelly connected in traditional parallelly connected, two optical cable 3 are located respectively to this gold utensil in two fastener bodies 1, and rethread drainage structure UNICOM has also reduced 3 contact surfaces of optical cable big enough or not enough even, leads to the problem that local resistance is too high to generate heat. The problems of generating redundant heat in the existing parallel groove clamp are effectively solved by the measures.
Still include auto-lock structure 6, made aluminium, one end with fastener body 1 is articulated, and articulated department is equipped with elasticity reset structure, the other end with 2 joints of gland are used for fixing gland 2 with fastener body 1's relative position. Traditional fastener body 1 and gland 2 adopt section bar mode unloading processing, and the bolt adopts traditional spring shim to come locking, takes place to become flexible because of material thermal expansion coefficient difference easily when the ice-melt passes through the heavy current, and the bolt material generally is steel simultaneously, and resistance is great, and two above reasons also can lead to producing more heats. The self-locking structure 6 is made of materials with high conductive efficiency, such as aluminum, so that the self-locking structure is convenient to operate, more importantly, the resistance of the locking structure is reduced, the heating is reduced, and meanwhile, the looseness caused by thermal expansion can also be reduced due to elastic connection.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A hardware fitting special for ground wire ice melting is characterized by comprising:
the drainage structure has a conductive function and is respectively connected with the two wire clamp structures;
the cable clamp structure comprises a cable clamp body (1) and a gland (2) which are hinged with each other, the cable clamp body (1) and the gland (2) are provided with arc-shaped grooves which are arranged correspondingly to each other, the arc-shaped grooves of the cable clamp body and the gland can form a cavity for placing an optical cable (3), a thin conductive layer (4) for coating the optical cable (3) is arranged in the cavity, the thin conductive layer (4) and the drainage structure are welded into a whole, and an elastic deformation layer (5) for filling a space is arranged between the thin conductive layer (4) and the inner wall of the cavity;
the locking structure is used for fixing the relative position of the gland (2) and the wire clamp body (1).
2. The hardware fitting special for ground wire ice melting according to claim 1, wherein the locking structure is a self-locking structure (6), one end of the locking structure is hinged to the wire clamp body (1), an elastic reset structure is arranged at the hinged position, and the other end of the locking structure is clamped with the gland (2) and used for fixing the relative position of the gland (2) and the wire clamp body (1).
3. The ground wire ice-melting special fitting according to claim 1, characterized in that the thin conducting layer (4) comprises a plurality of layers of thin aluminum sheets.
4. The hardware fitting special for ground wire ice melting according to claim 1, wherein the wire clamp structure is made of aluminum.
5. The fitting special for melting ice on ground wires according to claim 1, wherein the elastic deformation layer (5) is a rubber tile.
6. The hardware fitting special for ground wire ice melting according to claim 1, wherein the drainage structure comprises a crimped pure aluminum stranded wire (7) and two compression type equipment wire clamps (8), and the drainage structure can be freely bent to any angle.
7. The hardware fitting special for ground wire ice melting according to claim 1, wherein the wire clamp structure is detachably connected with the drainage structure through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010861557.XA CN111900690A (en) | 2020-08-25 | 2020-08-25 | Special hardware fitting for ground wire ice melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010861557.XA CN111900690A (en) | 2020-08-25 | 2020-08-25 | Special hardware fitting for ground wire ice melting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111900690A true CN111900690A (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010861557.XA Pending CN111900690A (en) | 2020-08-25 | 2020-08-25 | Special hardware fitting for ground wire ice melting |
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| Country | Link |
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| CN (1) | CN111900690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613687A (en) * | 2023-07-20 | 2023-08-18 | 南通赛博通信有限公司 | Flexible jumper clamp for melting ice |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201594591U (en) * | 2010-01-14 | 2010-09-29 | 浙江泰昌实业有限公司 | Header double-layer T-connection two-to-one telescopic hardware fitting for 500KV power transformation direct current melting ice |
| CN102231458A (en) * | 2010-09-08 | 2011-11-02 | 杜兴喜 | Electric socket |
| CN202678685U (en) * | 2012-06-29 | 2013-01-16 | 湖北兴和电力新材料股份有限公司 | Short circuit hardware in power grid ice melting system |
| CN103730875A (en) * | 2013-12-25 | 2014-04-16 | 江东金具设备有限公司 | Spacer self-locking cable clamp |
-
2020
- 2020-08-25 CN CN202010861557.XA patent/CN111900690A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201594591U (en) * | 2010-01-14 | 2010-09-29 | 浙江泰昌实业有限公司 | Header double-layer T-connection two-to-one telescopic hardware fitting for 500KV power transformation direct current melting ice |
| CN102231458A (en) * | 2010-09-08 | 2011-11-02 | 杜兴喜 | Electric socket |
| CN202678685U (en) * | 2012-06-29 | 2013-01-16 | 湖北兴和电力新材料股份有限公司 | Short circuit hardware in power grid ice melting system |
| CN103730875A (en) * | 2013-12-25 | 2014-04-16 | 江东金具设备有限公司 | Spacer self-locking cable clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613687A (en) * | 2023-07-20 | 2023-08-18 | 南通赛博通信有限公司 | Flexible jumper clamp for melting ice |
| CN116613687B (en) * | 2023-07-20 | 2023-10-03 | 南通赛博通信有限公司 | Flexible jumper clamp for melting ice |
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Application publication date: 20201106 |
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