CN206211472U - Roll stringing street code - Google Patents

Abstract

The rolling stringing street yard includes a bracket and at least one clamping device installed on the bracket, and at least one roller for rolling and supporting the cable when the cable is dragged by the wire is arranged horizontally on the bracket or the clamping device; in the utility model The clamping device can be the insulated porcelain bottle in the traditional street yard with the binding wire, or it can be other forms of clamping device. The utility model can provide the cable in dragging through the rollers arranged horizontally on the street yard. Rolling support, the cable is rolled and dragged under the support of the rollers, which makes the dragging and straightening process of the cable easier, thereby improving the efficiency of the wiring construction, and can effectively protect the cable sheath from being scratched.

Description

Rolling Wired Street Yards

technical field

The utility model relates to the field of cable installation, in particular to a rolling wire street yard.

Background technique

The street yard is a device used to straighten and fix the cable when laying the cable. When the cable is erected, it is necessary to drag the cable to straighten the cable and fix the cable on the street yard. Because the cable has a certain rigidity and self-weight, it is very time-consuming and laborious to drag the cable, and during the cable dragging process, the cable sheath often directly touches and rubs against the metal bracket of the street yard, which is easy to scratch the cable sheath, while the traditional The street code generally only includes a bracket and a clamping device arranged on the bracket, and does not set a special structure to assist in dragging the cable during the wiring construction.

Utility model content

The task of the utility model is to provide a rolling stringer that can roll support the cable, protect the cable sheath, and save time and labor when the cable is dragged.

The utility model is realized through the following technical solutions:

Rolling stringing street yards, including a bracket and at least one clamping device installed on the bracket, at least one roller for rolling and supporting the cable when the cable is dragged by the wire is arranged horizontally on the bracket or the clamping device; in this technical solution The cable clamping device can be the insulating porcelain bottle in the traditional street yard with the tie wire, or other forms of clamping device. The rollers set horizontally on the street yard can provide rolling support for the dragging cable. The cable is rolled and dragged under the support of the rollers, which makes the dragging and straightening process of the cable easier, thereby improving the efficiency of the wiring construction, and can effectively protect the cable sheath from being scratched.

Further improvements of the utility model include:

Further, the bracket includes a bracket body and a base, one end of the base is vertically and fixedly installed on the bracket body, the clamping device is arranged on the base, the base contains a shaft-like structure, and at least one of the rollers is arranged on it The first shaft hole in the center is sleeved on the shaft-shaped structure of the base and can roll relative to the base. The roller is set on the base and is closer to the clamping device, which is beneficial to the cable after straightening and determining the position. The cables are placed in clamping devices to secure them.

Preferably, the outer layer of the roller is made of rubber or plastic, and a first metal bushing is fixedly installed in the first shaft hole.

Further, the roller is provided with a limiting structure for limiting the cable from slipping off the roller.

Further, the limiting structure is a concave structure provided on the outer surface of the roller.

Further, at least two of the bases are arranged side by side on the support body, and one of the clamping devices is arranged between two adjacent bases, and the rolling wire street yard also includes a connecting rod. The mounting hole, the connecting rod passes through the clamping device and the base so as to connect the clamping device and the bracket together.

Further, one end of the connecting rod is provided with a cap, and the connecting rod is hung on the uppermost base through the cap.

Further, the thread clamping device includes a support wheel with a concave cylindrical outer surface, a first splint and a second splint oppositely arranged on both sides of the support wheel, and a locking device for connecting the first splint and the second splint, The inner surface of the first clamping plate and the inner surface of the second clamping plate cooperate with the outer surface of the support wheel respectively to form a first cavity and a second cavity for cables to pass through, and the first cavity can be adjusted by the locking device. The distance between the splint and the second splint. The center of the support wheel is provided with a second shaft hole for the connecting rod to pass through. In this technical solution, two splints cooperate with a support wheel to clamp the cable in the cavity formed by it. , has the following advantages: uniform accessories are installed and fixed, and they are stable after installation without moving or loosening; unified and standardized standardized accessories, construction will not be affected by factors that affect the effect; under the fixed state, the clamping device and the cable are in surface contact, No damage to the wire; when in use, the cable can pass through the first cavity and the second cavity at the same time, or only one of the cavities can pass through the cable according to needs, and when the rolling wire street code is arranged at the cable turning point , you can choose to set the cable in a suitable cavity according to the steering needs, so that the cable can be turned around the support wheel to make the steering more convenient and not damage the cable sheath. After passing through the one cavity, the supporting wheel can be bypassed and then passed through another cavity, so that the wire clamping is firm, the operation is convenient, and the construction efficiency is high.

Further, at least two bases are arranged side by side on the support, and the bases are respectively fixedly connected to the support, and a wire clamping device is provided between two adjacent bases, and the rolling stringing yard also includes a A connecting rod, the base is provided with a mounting hole, the center of the support wheel is provided with a second shaft hole, and the connecting rod passes through the second shaft hole and the mounting hole so as to connect the clamping device and the bracket together.

Further, one end of the connecting rod is provided with a cap, and the connecting rod is hung on the uppermost base through the cap.

Further, the outer layer of the support wheel is made of rubber or plastic, and a second metal bushing is fixedly installed in the second shaft hole.

Further, one end of the support wheel is provided with a buckle or a hook, and one end of the base is provided with a corresponding hook or hook.

Preferably, the structure of the buckle is a projection with straight grooves on both sides, the structure of the hook is two folded plates matching the straight grooves, and a support plate arranged under the two folded plates.

Preferably, the locking device includes more than two locking bolts, and the first clamping plate and the second clamping plate are threadedly connected by the locking bolts.

Preferably, the locking device includes two locking bolts, and the two locking bolts are arranged diagonally on the first clamping plate and the second clamping plate.

Further, the first splint and/or the second splint is provided with an internally threaded sleeve for matching the locking bolt.

Further, the first splint or the second splint is provided with a protective cap for protecting the locking bolt.

Further, a detachable pressure bearing block is also provided in the first cavity and/or the second cavity, and the pressure bearing block is provided with a front pressure bearing surface and a rear pressure bearing surface.

Preferably, the inner surface of the first splint has the same structure as the inner surface of the second splint, and matches the structure of the front pressure bearing surface, and the structure of the rear pressure bearing surface is consistent with the outer surface of the support wheel. The faces match.

Further, a pin is provided on the front pressure bearing surface, and a pin hole capable of interference fit with the pin is provided on the inner side of the first splint and/or the second splint.

Further, key slots are provided on the front pressure bearing surface, and key blocks matching the key slots are provided on the inner side of the first splint and/or the second splint.

Further, the inner surface structure of the first clamping plate and/or the second clamping plate is a concave arc structure or a bent structure in which at least two surfaces can contact the outer surface of the cable.

Further, both ends of the support wheel are provided with annular grooves, and the middle parts of the upper and lower sides of the first splint and the second splint are provided with arc-shaped edges 406 that can fit into the annular grooves.

Further, the upper and lower side ends of the first splint and/or the second splint are provided with limiting protrusions extending toward the direction of the opposite splint.

Preferably, the inside of the first splint and/or the second splint is a metal inner frame, and the outside is a rubber layer or a plastic layer.

Preferably, four wire clamping devices are installed side by side on the support from top to bottom, and the surfaces of the four wire clamping devices are all covered with insulating materials.

Preferably, the colors of the insulating materials on the surfaces of the four clamping devices are red, green, yellow and black from top to bottom.

Further, the bracket is also provided with a pulling auxiliary mechanism for connecting or fixing the cable pulling device, the pulling auxiliary mechanism includes at least one pulling plate, the pulling plate is fixedly connected with the bracket, and the pulling plate is provided with at least one pulling hole .

The beneficial effect of the utility model rolling wire street yard is: through the rollers arranged horizontally on the street yard, the cables in dragging can be supported, and the cables are rolled and dragged under the support of the rollers, so that the dragging of the cables and The straightening process is easier, thereby improving the efficiency of the wiring construction, and can effectively protect the cable sheath from being scratched; the operation is simple and fast when the street code is fixed, the cable arrangement is flexible, the cable steering is convenient, and the cable sheath is not easy to be damaged. The cable is stable and not easy to fall off, with good safety and simple structure, which can be applied to cables with different wire diameters and has strong versatility.

The conception, specific structure and effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present utility model.

Description of drawings

Fig. 1 is the structural representation of the utility model rolling stringing street code;

Fig. 2 is a schematic structural view of the base in Fig. 1;

Fig. 3 is a schematic structural view of the roller in Fig. 1;

Fig. 4 is the structural representation of the first splint in Fig. 1;

Fig. 5 is a schematic structural view of the support wheel in Fig. 1;

Among them: 1-bracket; 11, 12, 13, 14, 15-base; 101-bracket body; 102-shaft structure; 103-installation hole; 21, 22, 23, 24-clamping device; 3-support wheel ; 301-the second shaft hole; 302-the second metal bushing; 303-bump; 3041, 3042-folding plate; 305, 306-annular groove; Plywood; 401-threaded casing; 402-protective cap; 403-pin hole; 404-key block; 405-concave arc structure; Block cap; 61, 62, 63, 64-roller; 601-first shaft hole; 602-first metal bushing; 603-inner concave structure; 71, 72-locking bolt; 81, 82-bearing block; 801 -Front bearing surface; 8011-pin rod; 8012-keyway; 802-rear bearing surface; 9-traction plate; 901-traction hole.

detailed description

Below in conjunction with accompanying drawing, the utility model rolling wire street code is further described:

The rolling stringing street yard includes a bracket 1 and four clamping devices (21, 22, 23, 24), and its bracket 1 includes a bracket body 101 and five bases (11, 12, 13, 14, 15) arranged side by side , the bracket body 101 is installed vertically on the utility pole or the wall of the building, and one end of the base (11, 12, 13, 14, 15) is fixed vertically on the bracket body 101, and the base (12, 13, 14, 15) A roller (61, 62, 63, 64) for rolling and supporting the cable when the cable is dragged by the wire is respectively arranged on the top, and the base (12, 13, 14, 15) includes a shaft-shaped structure 102, and the roller (61, 62, 63, 64) There is a first shaft hole 601 in the center, and the rollers (61, 62, 63, 64) are set on the shaft-shaped structure 102 of the base (12, 13, 14, 15) and can roll relative to the base; stringing construction When the cable needs to be straightened or dragged, first put the cable on the rollers (61, 62, 63, 64), and drive the rollers (61, 62, 63, 64) to rotate during the process of dragging the cable , the rollers (61, 62, 63, 64) can provide rolling support for the cables being dragged, making the dragging and straightening process of the cables easier, thereby improving the efficiency of the wiring construction, and the cables and the street during the dragging process The code will not produce relative scratching and wear, and can effectively protect the cable sheath from being scratched.

The outer layer of the rollers (61, 62, 63, 64) is made of rubber or plastic material, and the first metal bushing 602 is fixedly installed in the first shaft hole 601, and the insulation configuration is unified, the position of the insulator and the cable is fixed, and the cable does not touch the metal bracket. Safety is guaranteed, and wear and scratches on the cable sheath are greatly reduced.

The rollers (61, 62, 63, 64) are provided with a position-limiting structure for limiting the slippage of the cables from the rollers, and the structure can prevent the cables from slipping off from the rollers during the dragging process.

The limit structure is a concave structure 603 arranged on the outer surface of the rollers (61, 62, 63, 64). The concave structure 603 can be in the shape of a concave arc, or can be a concave folding edge that can be in contact with the cable on at least two sides. Shaped structure, the cable is placed in the concave structure 603 for dragging, so that it is not easy to slip off from the two ends of the rollers (61, 62, 63, 64).

Four clamping devices (21, 22, 23, 24) are respectively installed between two adjacent bases, and the rolling wire street code also includes a connecting rod 5, and each base (11, 12, 13, 14, 15 ) is provided with mounting holes 103, and the connecting rod 5 passes through five bases (11, 12, 13, 14, 15) and four clamping devices (21, 22, 23, 24) so that the clamping devices (21, 22, 23, 24) and bracket 1 are connected together.

One end of the connecting rod 5 is provided with a cap 501 , and is hooked on the base 11 through the cap 501 .

Each clamping device (21, 22, 23, 24) includes a support wheel 3 with a concave column shape on the outer surface, oppositely arranged on the first clamping plate 41 and the second clamping plate 42 on both sides of the support wheel 3, and for connecting the first The locking device of a clamping plate 41 and the second clamping plate 42, the inner surface of the first clamping plate 41 and the inner surface of the second clamping plate 42 respectively cooperate with the outer surface of the support wheel 3 to form the first cavity and the second cavity for the cable to pass through. Two cavities, the spacing between the first splint 41 and the second splint 42 can be adjusted by the locking device; the center of the support wheel 3 is provided with a second shaft hole 301 for the connecting rod 5 to pass through, and the support wheel 3 can adopt the current general The street code porcelain bottle or similar structure, the support wheel 3 can rotate relative to the connecting rod 5, which is more convenient for the steering of the cable, and is not easy to damage the cable sheath, and the supporting wheel 3 can be installed, disassembled or replaced by pulling out the connecting rod 5. Simple, easy to assemble and disassemble; when in use, the first cavity and the second cavity can pass through the cable at the same time, or only one of the cavities can pass through the cable according to needs, and when the street code is arranged at the cable turning point, it can be used according to The steering needs to select the cable to be arranged in a suitable cavity, so that the cable can be turned around the support wheel 3 to make the steering more convenient and not damage the cable sheath. After the cavity, the support wheel 3 can be bypassed and then passed through another cavity to be fixed by bending back; the utility model clamps the cable in the cavity formed by two splints and a support wheel 3, and has the following advantages: unified The accessories are installed and fixed, and they are stable after installation without moving or loosening; the standardized accessories are standardized and standardized, and the construction will not affect the effect due to factors; in the fixed state, the clamping device is in surface contact with the cable and does not damage the line; the first space Cables with different wire diameters can be arranged in both the cavity and the second cavity, and the cables are convenient to turn, flexible in configuration and strong in versatility.

The outer layer of the supporting wheel 3 is made of rubber or plastic material, and the second metal bushing 302 is fixedly installed in the second shaft hole 301; the supporting wheel 3 with this structure can not only meet the same insulation requirements as the traditional street code porcelain bottle, but also the surface It has a certain rigidity, is not easy to be damaged due to impact or extrusion of the cable, has good safety, and has a large friction force with the cable sheath, and is easy to manufacture and low in cost.

One end of the supporting wheel 3 is provided with a buckle, and one end of the base (11, 12, 13, 14, 15) is provided with a hook that matches the hanging buckle, because overhead cables are generally operated by a single person at high altitude, and the supporting wheel 3 has no Place the space, and the supporting wheel 3 can be hung on the end of the base (11, 12, 13, 14, 15) by the cooperation of the buckle and the hook, so as to facilitate the operation of the operator.

The structure of the hook buckle is a protrusion 303 with straight grooves on both sides, and the structure of the hook is two folded plates (3041, 3042) matching the straight grooves, and a bracket arranged under the two folded plates (3041, 3042). Plate 307, this structure is easy to hang and take out the support wheel 3, especially suitable for high-altitude single-person work.

The locking device includes two locking bolts (71, 72), and the two locking bolts (71, 72) are diagonally arranged on the first clamping plate 41 and the second clamping plate 42, and the first clamping plate 41 and the second clamping plate 42 Threaded connection is carried out through locking bolts (71, 72); the bolt structure is firmly connected, easy to adjust the tightness, and the structure is simple, easy to replace, especially suitable for the connection of the first splint 41 and the second splint 42 in the utility model; when the cable When passing through the first cavity and/or the second cavity, two locking bolts (71, 72) are located on both sides of the cable, which can prevent the cable from slipping off the street yard, and only two locking bolts (71 , 72) can save cost and operator installation time, and the diagonal arrangement can maximize the firmness of the two locking bolts (71, 72) connecting the first splint 41 and the second splint 42.

Both the first splint 41 and the second splint 42 are provided with internally threaded sleeves 401 for matching locking bolts (71, 72). This structure can increase the stroke of the thread without increasing the thickness of the splint to make the connection It is firmer, and the inner bolt sleeve can protect the locking bolts (71, 72).

The first splint 41 is provided with a protective cap 402 for protecting the locking bolts (71, 72), and the protective cap 402 is fixedly connected to the first splint 41 through a connecting wire to prevent loss.

The same two pressure bearing blocks (81, 82) that can be detachably installed are respectively arranged in the first cavity and the second cavity, and the pressure bearing blocks (81, 82) are provided with a front pressure bearing surface 801 and a rear bearing The pressure surface 802, when the cable needs to be installed in the first cavity or the second cavity, the corresponding pressure bearing block (81, 82) can be taken out, when the cable does not need to be installed in the first cavity or the second cavity , the pressure-bearing blocks (81, 82) can be installed in the cavity, and the pressure-bearing blocks (81, 82) are respectively in contact with the splint and the support wheel 3 through their front pressure-bearing surface 801 and rear pressure-bearing surface 802, so as to share The pressure between the splint and the support wheel 3.

The inner surface of the first clamping plate 41 and the inner surface of the second clamping plate 42 have the same structure, and are compatible with the structure of the front pressure bearing surface 801, and the structure of the rear pressure bearing surface 802 is compatible with the outer surface of the support wheel 3, and this structure can increase The contact area of the pressure-bearing blocks (81, 82) with the splint and the support wheel 3 is to enhance the bearing force between the splint and the support wheel 3.

The front pressure bearing surface 801 of the pressure bearing block (81, 82) is provided with a pin rod 8011, and the inner side of the first splint 41 and the second splint 42 is provided with a pin hole 403 capable of interference fit with the pin rod 8011, This structure facilitates the installation of the pressure-bearing blocks (81, 82), and can prevent the pressure-bearing blocks (81, 82) from falling off with the movement when the support wheel 3 rotates.

A keyway 8012 is provided on the front pressure bearing surface 801 of the pressure bearing block (81, 82), and a key block 404 matched with the keyway 8012 is provided on the inner side of the first splint 41 and the second splint 42. This structure can prevent support When the wheel 3 rotates, the bearing blocks (81, 82) come off along with the movement.

The inner surface structures of the first splint 41 and the second splint 42 are all concave arc structures 405, the axial direction of the concave arc structure 405 is the same as the axial direction of the cable in the cavity, and this structure matches the inner surface of the support wheel 3 side. The concave surface forms a cavity for the cable to pass through, which increases the contact area between the cable and the cavity, and further increases the stability of the cable clamping.

The two ends of the support wheel 3 are provided with two annular grooves (305, 306), and the upper and lower sides of the first splint 41 and the second splint 42 are provided with a groove that can be fitted with the two annular grooves (305, 306). The arc-shaped edge 406, when the splint is in contact with the support wheel 3, is embedded and entangled in the annular grooves (305, 306) at both ends of the support wheel 3 through the arc-shaped edge 406, increasing the bearing pressure between the splint and the support wheel 3 and stability.

The length of the first clamping plate 41 and the second clamping plate 42 is greater than the diameter of the supporting wheel 3, and the upper and lower side ends of the first clamping plate 41 and the upper and lower side ends of the second clamping plate 42 are all provided with a clamp extending to the opposite clamping plate. Limiting protrusion 407, the limiting protrusion 407 can limit the cable, increase the firmness of cable fixing, and can effectively prevent the cable from slipping off from the yard.

The inside of the first clamping plate 41 and the second clamping plate 42 is a metal inner frame body, and the outside is a rubber layer or a plastic layer. The metal inner frame body can increase the firmness of the first clamping plate 41 and the second clamping plate 42, and the layer of plastic or rubber is more It is easy to process and shape, increase the contact area between the splint and the cable, compared with the way of binding wires, the insulation configuration is unified, the insulator and the cable are fixed in position, the cable does not touch the metal bracket, it is safe and guaranteed, and it greatly reduces the need for cables Wear and scratches on the outer skin.

The surfaces of the four clamping devices (21, 22, 23, 24) are all coated with insulating materials such as rubber and plastics, and the surfaces of the parts of the clamping devices (21, 22, 23, 24) are coated with insulating materials, which not only can Avoid damage to the cable sheath during the cable fixing operation process, good insulation, protect the cable, and can also protect the clamping device (21, 22, 23, 24), making it not easy to corrode, increasing the service life of the utility model.

The colors of the insulating materials on the surface of the four clamping devices (21, 22, 23, 24) are red, green, yellow and black from top to bottom; 21, 22, 23, 24) are set in one-to-one correspondence with the colors of the passing cables, which is convenient for identification and installation, and can increase the efficiency of operators.

The support body 101 is also provided with a traction auxiliary mechanism for connecting or fixing the cable traction device. The traction auxiliary mechanism includes a traction plate 9 which is fixedly connected with the support body 101. The traction plate 9 is provided with a traction hole 901 , when working at heights, the tractor is fixedly connected to the traction plate 9 through the traction hole 901, thereby providing the tractor with a focus.

The utility model has introduced some embodiments and accompanying drawings in detail, but the utility model is not limited to these embodiments and accompanying drawings, especially not limited to the shape of the rolling wire street code in the accompanying drawings. Among the various shapes, the more beautiful rolling wire street yards, although this shape is not the technical point claimed by the protection of the utility model, as long as those of ordinary skill in the art do not pay creative labor according to the utility model, it can be modified, Other implementations obtained by equivalent replacement, improvement, etc. and the accompanying drawings are all within the protection scope of the present utility model.

Claims (26)

1. stringing street code, including support and at least one rack-mount wire-clamping device are rolled, it is characterised in that the branch At least one is horizontally disposed with frame or wire-clamping device is used for the roller of rolling support cable when stringing drags cable.

It is 2. according to claim 1 to roll stringing street code, it is characterised in that the support includes rack body and base, One end of the base is vertically fixedly mounted on rack body, and the wire-clamping device is arranged on base, and axle is included on base Shape structure, roller described at least one is by being disposed therein the first shaft hole sleeve of the heart in the shaft-like structure of the base and energy Respect thereto is rolled.

3. it is according to claim 2 to roll stringing street code, it is characterised in that the roller outer layer is rubber or plastics material Matter, the first metal axle sleeve is installed with first axis hole.

4. rolling stringing street according to claim 1 code, it is characterised in that the roller be provided with for limit cable from The position limiting structure slipped on roller.

5. it is according to claim 4 to roll stringing street code, it is characterised in that the position limiting structure is to be arranged on the roller The concave inward structure of lateral surface.

6. it is according to claim 2 to roll stringing street code, it is characterised in that at least two are set up in parallel on the rack body The individual base, sets a wire-clamping device between two adjacent bases, the rolling stringing street code also includes one Connecting rod, base is provided with mounting hole, and the connecting rod is through wire-clamping device and base so as to wire-clamping device and support are connected into one Rise.

7. it is according to claim 6 to roll stringing street code, it is characterised in that one end of the connecting rod is provided with block, described Connecting rod is articulated on the base of the top by block.

8. it is according to claim 6 to roll stringing street code, it is characterised in that the wire-clamping device is included in a lateral surface The support wheel of recessed column, the first clamping plate and second clamping plate that are oppositely arranged on support wheel both sides, and for connecting first clamping plate With the locking device of second clamping plate, the medial surface of first clamping plate and the medial surface of second clamping plate respectively with the outside of the support wheel Face cooperatively forms the first cavity and the second cavity passed through for cable, by the locking device can adjust first clamping plate and The spacing of second clamping plate, the support wheel center is provided with the second axis hole passed through for the connecting rod.

9. it is according to claim 8 to roll stringing street code, it is characterised in that the support wheel outer layer is rubber or plastics Material, the second metal axle sleeve is installed with second axis hole.

10. it is according to claim 8 to roll stringing street code, it is characterised in that the one end of the support wheel is provided with and buckles Or link up with, the one end of the base is provided with corresponding hook or buckles.

11. rolling stringing street according to claim 10 codes, it is characterised in that the structure for buckling sets respectively for both sides There is the projection of straight trough, the structure of the hook is two folded plates for coordinating the straight trough, and is located at the supporting plate under two folded plates.

12. rolling stringing street according to claim 8 codes, it is characterised in that the locking device includes that two or more is locked Tight bolt, the first clamping plate and the second clamping plate are threadedly coupled by the clamping screw.

13. rolling stringing street according to claim 12 codes, it is characterised in that the locking device includes two locks Tight bolt, two clamping screws are arranged diagonal in the first clamping plate and the second clamping plate.

14. rolling stringing street according to claim 12 codes, it is characterised in that the first clamping plate and/or described second Clamping plate is provided with the internally threaded sleeve for coordinating the clamping screw.

15. rolling stringing street according to claim 12 codes, it is characterised in that the first clamping plate or the second clamping plate It is provided with the head protector for protecting the clamping screw.

16. rolling stringing street according to claim 8 codes, it is characterised in that first cavity and/or second sky The pressure block of detachable installation is additionally provided with chamber, the pressure block is provided with preceding pressure-bearing surface and rear pressure-bearing surface.

17. according to claim 16 roll stringing streets code, it is characterised in that the medial surface of the first clamping plate and described The medial surface structure of second clamping plate is identical, and mutually agrees with the structure of the preceding pressure-bearing surface, the structure of the rear pressure-bearing surface and institute The lateral surface for stating support wheel mutually agrees with.

18. rolling stringing street according to claim 16 codes, it is characterised in that the preceding pressure-bearing surface is provided with pin rod, institute The medial surface for stating first clamping plate and/or the second clamping plate is provided with the pin-and-hole that interference fit can be carried out with the pin rod.

19. rolling stringing street according to claim 16 codes, it is characterised in that the preceding pressure-bearing surface is provided with keyway, institute The medial surface for stating first clamping plate and/or the second clamping plate is provided with the key block being engaged with the keyway.

20. according to any described rolling stringing street codes of claim 8-19, it is characterised in that the first clamping plate and/or institute It is concave-curve structure or bending-type structure that at least two sides can contact with cable outer surface to state the medial surface structure of second clamping plate.

21. according to any described rolling stringing street codes of claim 8-19, it is characterised in that the two ends of the support wheel are provided with The upper and lower side middle part of annular groove, the first clamping plate and the second clamping plate is provided with arc that can be mutually chimeric with the annular groove Shape side 406.

22. according to any described rolling stringing street codes of claim 8-19, it is characterised in that the first clamping plate and/or institute The upper and lower side end for stating second clamping plate is provided with the spacing preiection that its relative clamping plate direction extends.

23. according to any described rolling stringing street codes of claim 8-19, it is characterised in that the first clamping plate and/or institute The inside of second clamping plate is stated for metal inner frame body, outside is rubber layer or plastic layer.

24. according to any described rolling stringing street codes of claim 1-19, it is characterised in that on the support from top to bottom simultaneously Row are provided with four wire-clamping devices, and four wire-clamping devices the equal coated insulation material in surface.

25. rolling stringing street according to claim 24 codes, it is characterised in that four wire-clamping devices surface insulation material The color of material is followed successively by red, green, yellow and black from top to bottom.

26. according to any described rolling stringing street codes of claim 1-19, it is characterised in that be additionally provided with the support for Connection or the traction auxiliary body of fixed cable traction device, the traction auxiliary body include at least one towing plate, and this leads Corbel back slab is fixedly connected with the support, and towing plate is provided with least one towing pad.