CN211830133U - Transmission line defroster - Google Patents
Transmission line defroster Download PDFInfo
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- CN211830133U CN211830133U CN201922486709.8U CN201922486709U CN211830133U CN 211830133 U CN211830133 U CN 211830133U CN 201922486709 U CN201922486709 U CN 201922486709U CN 211830133 U CN211830133 U CN 211830133U
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Abstract
The utility model belongs to the technical field of deicing technique and specifically relates to indicate a transmission line defroster, it includes: the shell is formed by enclosing a top plate, a bottom plate, a first side plate and a second side plate, and the first side plate is provided with a wire inlet notch for a power transmission line to enter the shell; the upper clamping assembly comprises a friction wheel rotatably borne in the shell, and the friction wheel is positioned above the wire inlet notch; the lower clamping assembly is arranged on the shell and is positioned below the wire inlet gap, and the lower clamping assembly comprises a clamping wheel which is rotatably borne on the shell; and the deicing mechanism comprises an ice impact hammer and a driving assembly for driving the ice impact hammer to impact the power transmission line. When the ice removing device works specifically, the shell is lifted to one side of the power transmission line, the electric wire is placed in the shell through the wire inlet notch, the friction wheel and the clamping wheel clamp the power transmission line tightly, then the shell is moved, and the ice hammer can impact the power transmission line to remove ice. The utility model discloses ice efficiency is higher, and manufacturing cost is lower, and the security is higher.
Description
Technical Field
The utility model belongs to the technical field of deicing technique and specifically relates to indicate a transmission line defroster.
Background
The power transmission line is easy to freeze in winter, the weight of the overhead line is increased, when the freezing amount is too large, the weight of the overhead line is greatly increased, the supporting device is overloaded and loaded, the iron tower is easy to damage, and a power failure accident can be caused in severe cases. At present, the current is increased to overload, heat and deice a high-voltage wire and short-circuit, heat and deice the high-voltage wire. The method of heating and deicing the high-voltage wire by increasing the current is adopted, and the heat is quickly dissipated in severe cold so as not to achieve the aim; the short circuit heating deicing is carried out on the high-voltage wire, so that a large amount of capital is invested to set special equipment and the risk of damaging the high-voltage wire network is reduced. Therefore, the problems of low efficiency, high cost of deicing equipment and high risk exist in deicing the power transmission line at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a transmission line defroster has solved and has still existed inefficiency, deicing equipment with high costs, the big problem of risk to transmission line deicing at present.
In order to solve the technical problem, the utility model discloses a following technical scheme: the method comprises the following steps:
the shell is formed by enclosing a top plate, a bottom plate, a first side plate and a second side plate, and the first side plate is provided with a wire inlet notch for a power transmission line to enter the shell;
the upper clamping assembly comprises a friction wheel rotatably borne in the shell, and the friction wheel is positioned above the wire inlet notch;
the lower clamping assembly is arranged on the shell and is positioned below the wire inlet gap, and the lower clamping assembly comprises a clamping wheel which is rotatably borne on the shell;
and the deicing mechanism comprises an ice impact hammer and a driving assembly for driving the ice impact hammer to impact the power transmission line.
Furthermore, the upper clamping assembly comprises a first rotating shaft connected with the friction wheel, two ends of the first rotating shaft are respectively connected with the first side plate and the second side plate in a rotating mode, a transmission assembly is arranged between the first rotating shaft and the driving assembly, and when the first rotating shaft rotates, the transmission assembly can drive the ice impact hammer to impact ice.
Further, first curb plate and the vertical first spout that is provided with the bar of second curb plate, it is provided with first slider to slide in the first spout, the upper end of first slider is provided with first guide arm, first guide arm with shell sliding connection, be provided with first spring on the first guide arm, the both ends of first spring respectively the top of first slider and first spout of butt, the both ends of first pivot respectively with first slider rotates to be connected.
Furthermore, a third guide rod is slidably arranged on the bottom plate, the ice striking hammer is fixedly arranged at the top end of the third guide rod, a fourth spring is sleeved on the third guide rod, two ends of the fourth spring are respectively abutted against the ice striking hammer and the bottom plate, and a third limiting block for preventing the third guide rod from being separated from the bottom plate is arranged at the bottom end of the third guide rod;
the driving assembly comprises a rack arranged on the side wall of the ice hammer and an intermittent gear meshed and connected with the rack, the intermittent gear comprises a meshing part meshed and connected with the rack and a separation part separated from the rack, the intermittent gear is provided with a third rotating shaft, and two ends of the third rotating shaft are respectively rotatably connected with the first side plate and the second wiping plate;
the transmission assembly comprises a driving wheel arranged on the first rotating shaft, a driven wheel arranged on the third rotating shaft and a belt sleeved between the driving wheel and the driven wheel.
Further, the first side plate and the second side plate are vertically provided with a strip-shaped third chute, a third sliding block is arranged in the third chute in a sliding mode, two ends of a third rotating shaft are respectively connected with the third sliding block in a rotating mode, a third spring is arranged at the upper end of the third sliding block, and the top end of the third spring is connected with the top end of the third chute.
Further, a strip-shaped second sliding groove is vertically formed in the first side plate and the second side plate, a second sliding block is arranged in the second sliding groove in a sliding mode, a second guide rod is arranged at the bottom end of the second sliding block and is connected with the shell in a sliding mode, a second spring is arranged on the second guide rod, and two ends of the second spring are abutted to the second sliding block and the bottom end of the second sliding groove respectively; and a second rotating shaft is rotatably connected between the two second sliding blocks, and the clamping wheel is arranged on the second rotating shaft.
Further, the shell is provided with and is used for fixing the locking subassembly of pinch roller position, the locking subassembly including set up in the first locking piece and the activity of second slider set up in the second locking piece of shell, first locking piece and the cooperation of second locking piece joint.
Further, the first locking piece comprises wedge-shaped latch teeth arranged on the outer side of the second sliding block, the second locking piece is hinged to the side wall of the shell and located right below the first locking piece, a free end of the second locking piece is provided with a position yielding portion used for being in concave-convex fit with the first locking piece, a free end of the second locking piece is provided with a fifth spring, one end of the fifth spring is connected with the shell, and when the fifth spring is in a natural state, the position yielding portion is abutted to the first locking piece; the second locking piece is provided with a plurality of clamping grooves which are matched with the locking wedge-shaped caliper in a concave-convex mode, and the first locking piece can be clamped into the clamping grooves by sliding the second sliding block downwards.
Furthermore, the diameters of the friction wheel and the clamping wheel are gradually increased from the middle to the two ends, and the outer wall of the friction wheel is provided with a friction bulge.
Further, the bottom plate is provided with a connector.
The utility model has the advantages that: when the ice removing device works specifically, the shell is lifted to one side of the power transmission line, the electric wire is placed in the shell through the wire inlet notch, the friction wheel and the clamping wheel clamp the power transmission line, then the shell is moved, and the ice hammer can impact the power transmission line to remove ice; the utility model has the advantages of higher ice efficiency, lower production cost and higher safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a schematic view of the internal connection structure of the present invention;
fig. 3 is a schematic structural view of the friction wheel of the present invention;
fig. 4 is a schematic structural view of the locking assembly of the present invention.
Description of reference numerals: 10. a housing; 11. a top plate; 12. a base plate; 13. a first side plate; 14. A second side plate; 15. a wire inlet notch; 16. a connector; 17. a first chute; 18. a second chute; 19. a third chute; 20. an upper clamping assembly; 21. a friction wheel; 211. a friction projection; 22. a first rotating shaft; 23. a first slider; 24. a first guide bar; 25. a first spring; 30. A lower clamping assembly; 31. a pinch wheel; 32. a second rotating shaft; 33. a second slider; 34. a second guide bar; 35. a second spring; 40. a drive assembly; 41. a rack; 42. an intermittent gear; 421. An engaging portion; 422. a disengaging part; 43. a third rotating shaft; 44. a third slider; 45. a third spring; 50. a transmission assembly; 51. a driving wheel; 52. a driven wheel; 53. a belt; 60. hitting an ice hammer; 61. a third guide bar; 62. a fourth spring; 63. a third limiting block; 71. a first locking member; 72. a second locking member; 721. a relief portion; 722. a card slot; 73. and a fifth spring.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
Examples
As shown in fig. 1 and 2, the utility model provides a power transmission line deicing device, it includes shell 10, upper clamping component 20, lower clamping component 30 and deicing mechanism, shell 10 is enclosed by roof 11, bottom plate 12, first curb plate 13 and second curb plate 14 and is established to form, first curb plate 13 is provided with the inlet wire breach 15 that supplies the power transmission line to get into in the shell 10, bottom plate 12 is provided with connector 16, is provided with the screw thread on connector 16, can connect the telescopic link or stretch; the upper clamping assembly 20 comprises a friction wheel 21 rotatably carried in the housing 10, and the friction wheel 21 is located above the wire inlet gap 15; the lower clamping assembly 30 is arranged on the housing 10 and located below the wire inlet gap 15, and the lower clamping assembly 30 includes a clamping wheel 31 rotatably carried on the housing 10; the deicing mechanism comprises an ice hammer 60 and a driving assembly 40 for driving the ice hammer 60 to impact the power transmission line. During specific work, the shell 10 is lifted to one side of the power transmission line, the electric wire is placed in the shell 10 through the wire inlet notch 15, the friction wheel 21 and the clamping wheel 31 clamp the power transmission line, then the shell 10 is moved, and the ice hammer 60 can impact the power transmission line to remove ice.
Preferably, the diameters of the friction wheel 21 and the clamping wheel 31 are gradually increased from the middle to the two ends, so that the power transmission line wheel can be clamped more stably.
As shown in fig. 1 and 2, the upper clamping assembly 20 includes a first rotating shaft 22 connected to a friction wheel 21, two ends of the first rotating shaft 22 are rotatably connected to the first side plate 13 and the second side plate 14, respectively, and a transmission assembly 50 is disposed between the first rotating shaft 22 and the driving assembly 40, and when the first rotating shaft 22 rotates, the transmission assembly 50 can drive the ice hammer 60 to hit ice. Through transmission assembly 50, need not provide motor lamp driving source to hitting ice hammer 60, practiced thrift the cost. And this transmission line defroster all adopts insulating material to make, can improve the security of deicing operation.
Preferably, first curb plate 13 and second curb plate 14 are vertically provided with bar-shaped first spout 17, it is provided with first slider 23 to slide in first spout 17, the upper end of first slider 23 is provided with first guide arm 24, first guide arm 24 with shell 10 sliding connection, be provided with first spring 25 on the first guide arm 24, the both ends of first spring 25 butt respectively first slider 23 and the top of first spout 17, the both ends of first pivot 22 respectively with first slider 23 rotates and is connected. The arrangement of the first spring 25 has a certain buffering effect on the friction wheel 21, and meanwhile, the friction wheel 21 can clamp the power transmission line under the action of elastic force.
The bottom plate 12 is provided with a third guide rod 61 in a sliding manner, the ice striking hammer 60 is fixedly arranged at the top end of the third guide rod 61, the third guide rod 61 is sleeved with a fourth spring 62, two ends of the fourth spring 62 are respectively abutted against the ice striking hammer 60 and the bottom plate 12, the bottom end of the third guide rod 61 is provided with a third limiting block 63 for preventing the third guide rod 61 from being separated from the bottom plate 12, and the ice striking hammer 60 can move up and down. The driving assembly 40 comprises a rack 41 arranged on the side wall of the ice hammer 60 and an intermittent gear 42 meshed with the rack 41, the intermittent gear 42 is provided with a notch, the intermittent gear 42 comprises a meshing part 421 meshed with the rack 41 and a disengaging part 422 disengaged from the rack 41, the intermittent gear 42 is provided with a third rotating shaft 43, and two ends of the third rotating shaft 43 are respectively rotatably connected with the first side plate 13 and the second wiping plate; the transmission assembly 50 includes a driving wheel 51 disposed on the first rotating shaft 22, a driven wheel 52 disposed on the third rotating shaft 43, and a belt 53 sleeved between the driving wheel 51 and the driven wheel 52, wherein the belt 53 has elasticity, and can ensure transmission of force when the first slider 23 moves up and down. When the housing 10 moves forward, the friction wheel 21 rolls on the transmission line, so as to drive the driving wheel 51 to rotate, the driving wheel 51 drives the driven wheel 52 to rotate under the action of the belt 53, the driven wheel 52 drives the intermittent gear 42 to rotate, the meshing part 421 of the intermittent gear 42 is matched with the rack 41, then the ice hammer 60 moves downward to compress the fourth spring 62, when the disengaging part 422 of the intermittent gear 42 is close to the rack 41, the intermittent gear 42 and the rack 41 are disengaged, and the ice hammer 60 rapidly moves upward to impact the ice coating on the transmission line under the action of the fourth spring 62.
Preferably, referring to fig. 3, the outer wall of the friction wheel 21 is provided with a friction protrusion 211, so that friction force can be improved, the friction wheel 21 is prevented from slipping, power is conveniently stored for the ice hammer 60, and deicing efficiency is improved.
Preferably, in order to improve the shock resistance of the driving assembly 40, the first side plate 13 and the second side plate 14 are vertically provided with a strip-shaped third sliding groove 19, a third sliding block 44 is slidably arranged in the third sliding groove 19, two ends of the third rotating shaft 43 are respectively rotatably connected with the third sliding block 44, a third spring 45 is arranged at the upper end of the third sliding block 44, and the top end of the third spring 45 is connected with the top end of the third sliding groove 19.
As shown in fig. 1 and 2, the first side plate 13 and the second side plate 14 are vertically provided with a strip-shaped second sliding groove 18, a second sliding block 33 is slidably provided in the second sliding groove 18, a second guide rod 34 is provided at a bottom end of the second sliding block 33, the second guide rod 34 is slidably connected with the housing 10, a second spring 35 is provided on the second guide rod 34, and two ends of the second spring 35 respectively abut against the second sliding block 33 and a bottom end of the second sliding groove 18; a second rotating shaft 32 is rotatably connected between the two second sliding blocks 33, and the clamping wheel 31 is arranged on the second rotating shaft 32. In specific operation, under the action of the first spring 25 and the second spring 35, the friction wheel 21 and the clamping wheel 31 can clamp the transmission line wheel.
As shown in fig. 1, 2 and 4, the housing 10 is provided with a locking component for fixing the position of the clamping wheel 31, the locking component includes a first locking element 71 disposed on the second sliding block 33 and a second locking element 72 movably disposed on the housing 10, and the first locking element 71 and the second locking element 72 are in snap fit. Specifically, the first locking element 71 includes wedge-shaped latch teeth arranged outside the second sliding block 33, the second locking element 72 is hinged to the side wall of the housing 10 and located right below the first locking element 71, a free end of the second locking element 72 is provided with a relief portion 721 for concave-convex matching with the first locking element 71, a free end of the second locking element 72 is provided with a fifth spring 73, one end of the fifth spring 73 is connected to the housing 10, and when the fifth spring 73 is in a natural state, the relief portion 721 abuts against the first locking element 71; the second locking element 72 is provided with a plurality of slots 722 which are in concave-convex fit with the locking wedge caliper, and the first locking element 71 can be clamped into the slots 722 by sliding the second sliding block 33 downwards. After deicing is completed, the shell 10 can be lifted upwards, the clamping wheel 31 abuts against the power transmission line, then the second sliding block 33 slides downwards, and the first locking piece 71 is driven to be clamped into the clamping groove 722 to fix the clamping wheel 31, so that the power transmission line deicing device can be conveniently taken down from the power transmission line; after the deicing device for the power transmission line is removed, the free end of the second locking piece 72 is pulled, so that the first locking piece 71 is separated from the clamping groove 722 under the action of the second spring 35, and the first locking piece 71 enters the abdicating part 721.
The operation method comprises the following steps:
firstly, lifting the shell 10 to one side of the power transmission line, placing the power transmission line into the shell 10 through the wire inlet notch 15, and clamping the power transmission line by the friction wheel 21 under the action of the first spring 25 and the clamping wheel 31 under the action of the second spring 35; then the shell 10 is moved, the friction wheel 21 rolls on the power transmission line, so that the driving wheel 51 is driven to rotate, the driving wheel 51 drives the driven wheel 52 to rotate under the action of the belt 53, the driven wheel 52 drives the intermittent gear 42 to rotate, the meshing part 421 of the intermittent gear 42 is matched with the rack 41, then the ice hammer 60 moves downwards to compress the fourth spring 62, when the disengaging part 422 of the intermittent gear 42 is close to the rack 41, the intermittent gear 42 and the rack 41 are disengaged, and the ice hammer 60 rapidly moves upwards under the action of the fourth spring 62 to impact the ice coating on the power transmission line; finally, after the deicing is completed, the shell 10 can be lifted upwards, the clamping wheel 31 abuts against the power transmission line, then the second sliding block 33 slides downwards, the first locking piece 71 is driven to be clamped into the clamping groove 722, the clamping wheel 31 is fixed, and the power transmission line deicing device can be conveniently taken down from the power transmission line; after the deicing device for the power transmission line is removed, the free end of the second locking piece 72 is pulled, so that the first locking piece 71 is separated from the clamping groove 722 under the action of the second spring 35, and the first locking piece 71 enters the abdicating part 721.
To sum up the above
The utility model discloses deicing efficiency is higher, and simple structure need not adopt the driving source drive to hit ice hammer 60 deicing, has practiced thrift the cost, improves the security of deicing operation simultaneously, has reduced transmission line's deicing risk.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
Claims (10)
1. The utility model provides a transmission line defroster which characterized in that: the method comprises the following steps:
the shell is formed by enclosing a top plate, a bottom plate, a first side plate and a second side plate, and the first side plate is provided with a wire inlet notch for a power transmission line to enter the shell;
the upper clamping assembly comprises a friction wheel rotatably borne in the shell, and the friction wheel is positioned above the wire inlet notch;
the lower clamping assembly is arranged on the shell and is positioned below the wire inlet gap, and the lower clamping assembly comprises a clamping wheel which is rotatably borne on the shell;
and the deicing mechanism comprises an ice impact hammer and a driving assembly for driving the ice impact hammer to impact the power transmission line.
2. The deicing device for electric transmission lines according to claim 1, characterized in that: the upper clamping assembly comprises a first rotating shaft connected with the friction wheel, two ends of the first rotating shaft are respectively connected with the first side plate and the second side plate in a rotating mode, a transmission assembly is arranged between the first rotating shaft and the driving assembly, and when the first rotating shaft rotates, the transmission assembly can drive the ice hitting hammer to hit ice.
3. The deicing device for electric transmission lines according to claim 2, characterized in that: the first side plate and the second side plate are vertically provided with bar-shaped first chutes, first sliding blocks are arranged in the first chutes in a sliding mode, first guide rods are arranged at the upper ends of the first sliding blocks, the first guide rods are connected with the shell in a sliding mode, first springs are arranged on the first guide rods, the two ends of each first spring are respectively abutted to the top ends of the first sliding blocks and the first chutes, and the two ends of each first rotating shaft are respectively connected with the first sliding blocks in a rotating mode.
4. The deicing device for electric transmission lines according to claim 3, characterized in that: a third guide rod is slidably arranged on the bottom plate, the ice striking hammer is fixedly arranged at the top end of the third guide rod, a fourth spring is sleeved on the third guide rod, two ends of the fourth spring are respectively abutted against the ice striking hammer and the bottom plate, and a third limiting block for preventing the third guide rod from being separated from the bottom plate is arranged at the bottom end of the third guide rod;
the driving assembly comprises a rack arranged on the side wall of the ice hammer and an intermittent gear meshed and connected with the rack, the intermittent gear comprises a meshing part meshed and connected with the rack and a separation part separated from the rack, the intermittent gear is provided with a third rotating shaft, and two ends of the third rotating shaft are respectively rotatably connected with the first side plate and the second wiping plate;
the transmission assembly comprises a driving wheel arranged on the first rotating shaft, a driven wheel arranged on the third rotating shaft and a belt sleeved between the driving wheel and the driven wheel.
5. The deicing device for electric transmission lines according to claim 4, characterized in that: the first side plate and the second side plate are vertically provided with strip-shaped third chutes, third sliding blocks are arranged in the third chutes in a sliding mode, two ends of a third rotating shaft are respectively connected with the third sliding blocks in a rotating mode, third springs are arranged at the upper ends of the third sliding blocks, and the top ends of the third springs are connected with the top ends of the third chutes.
6. The deicing device for electric transmission lines according to claim 1, characterized in that: the first side plate and the second side plate are vertically provided with strip-shaped second sliding grooves, a second sliding block is arranged in each second sliding groove in a sliding mode, a second guide rod is arranged at the bottom end of each second sliding block and is connected with the shell in a sliding mode, a second spring is arranged on each second guide rod, and two ends of each second spring are abutted to the bottom ends of the corresponding second sliding block and the corresponding second sliding groove respectively; and a second rotating shaft is rotatably connected between the two second sliding blocks, and the clamping wheel is arranged on the second rotating shaft.
7. The deicing device for electric transmission lines according to claim 6, characterized in that: the shell is provided with and is used for fixing the locking subassembly of pinch roller position, the locking subassembly including set up in the first locking piece and the activity of second slider set up in the second locking piece of shell, first locking piece and the cooperation of second locking piece joint.
8. The deicing device for electric transmission lines according to claim 7, characterized in that: the first locking piece comprises wedge-shaped latch teeth arranged on the outer side of the second sliding block, the second locking piece is hinged to the side wall of the shell and located right below the first locking piece, a position yielding part which is used for being in concave-convex fit with the first locking piece is arranged at the free end of the second locking piece, a fifth spring is arranged at the free end of the second locking piece, one end of the fifth spring is connected with the shell, and when the fifth spring is in a natural state, the position yielding part is abutted to the first locking piece; the second locking piece is provided with a plurality of clamping grooves which are matched with the locking wedge-shaped caliper in a concave-convex mode, and the first locking piece can be clamped into the clamping grooves by sliding the second sliding block downwards.
9. The deicing device for electric transmission lines according to any one of claims 1 to 8, characterized in that: the diameters of the friction wheel and the clamping wheel are gradually increased from the middle to the two ends, and the outer wall of the friction wheel is provided with a friction bulge.
10. The deicing device for electric transmission lines according to any one of claims 1 to 8, characterized in that: the bottom plate is provided with a connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922486709.8U CN211830133U (en) | 2019-12-31 | 2019-12-31 | Transmission line defroster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922486709.8U CN211830133U (en) | 2019-12-31 | 2019-12-31 | Transmission line defroster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211830133U true CN211830133U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922486709.8U Active CN211830133U (en) | 2019-12-31 | 2019-12-31 | Transmission line defroster |
Country Status (1)
| Country | Link |
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| CN (1) | CN211830133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181116A (en) * | 2019-12-31 | 2020-05-19 | 贵州电网有限责任公司 | Automatic deicer suitable for power transmission line |
| CN116054063A (en) * | 2023-03-30 | 2023-05-02 | 国网山东省电力公司宁阳县供电公司 | Deicing device for high-voltage wires |
-
2019
- 2019-12-31 CN CN201922486709.8U patent/CN211830133U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181116A (en) * | 2019-12-31 | 2020-05-19 | 贵州电网有限责任公司 | Automatic deicer suitable for power transmission line |
| CN116054063A (en) * | 2023-03-30 | 2023-05-02 | 国网山东省电力公司宁阳县供电公司 | Deicing device for high-voltage wires |
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