CN213717515U

CN213717515U - Step type cable bridge

Info

Publication number: CN213717515U
Application number: CN202022714601.2U
Authority: CN
Inventors: 周凯
Original assignee: Beijing Kairongda Electric Co ltd
Current assignee: Beijing Kairongda Electric Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-07-16
Anticipated expiration: 2030-11-20

Abstract

The utility model relates to a ladder formula cable testing bridge belongs to power equipment's field, and it includes the crane span structure body, and the crane span structure body includes two blocks of curb plates and ladder frame, and the ladder frame is perpendicular with cable length direction including dismantling the many spinal branchs poles of connecting between two blocks of curb plates, bracing piece length direction, and coaxial rotation is connected with two sets of slewing mechanism on the bracing piece, and two sets of slewing mechanism intervals set up, and cable sliding connection is on slewing mechanism. The cable protection layer damage prevention device has the effects of reducing damage to the cable protection layer in the cable moving process and reducing potential safety hazards.

Description

Step type cable bridge

Technical Field

The application relates to the field of power equipment, in particular to a stepped cable bridge.

Background

A rigid structure system with closely-connected supporting cables is formed by groove type, tray type or step type straight line sections, bend-through sections, tee joints and four-way components, supporting arms, hangers and the like and is called a cable bridge. The ladder-type cable bridge has the advantages of light weight, low cost, shape identification, convenience in installation, good heat dissipation and ventilation and the like. It is suitable for laying general cable with large diameter, and is suitable for laying high-voltage and low-voltage power cable.

Referring to fig. 1, a conventional stepped cable bridge is composed of two side plates 11 and a ladder frame 12 between the side plates 11, and a cable is laid on the prism ladder frame 12 to move.

In view of the above-mentioned related technologies, the inventor believes that when a cable is laid and pulled, for a thick cable, the cable is heavy and the contact area with a cable bridge is large, so that the friction force is also large, a large traction force is required, and when the cable is moved, the protective layer of the cable is easily damaged, which causes a potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to reduce the damage to the cable protection layer at the cable removal in-process, reduce the potential safety hazard, this application provides a ladder formula cable testing bridge.

The application provides a step-type cable testing bridge adopts following technical scheme:

the utility model provides a ladder formula cable testing bridge, includes the crane span structure body, the crane span structure body includes two blocks of curb plates and ladder frame, ladder frame is including dismantling the many spinal branchs vaulting pole of connecting between two blocks of curb plates, bracing piece length direction is perpendicular with cable length direction, coaxial rotation is connected with two sets of slewing mechanism on the bracing piece, and two sets of slewing mechanism intervals set up, and cable sliding connection is on slewing mechanism.

Through adopting above-mentioned technical scheme, when needing the laying cable, the cable slides from slewing mechanism, thereby slewing mechanism rotates the frictional force that reduces the cable and slides in-process, reduces the friction damage of cable slip in-process, reduces the potential safety hazard.

Optionally, the support rod is a cylindrical rod, the rotating mechanism includes a rotating cylinder coaxially and rotatably connected to the support rod, the cable is slidably connected to the rotating cylinder, and the cable abuts against a side wall of the rotating cylinder.

Through adopting above-mentioned technical scheme, when the cable slided from rotating the section of thick bamboo, the cable drove and rotates a section of thick bamboo and rotate, rotates a section of thick bamboo and rotates the friction that reduces the cable and slide in-process to reduce the damage that the cable slided the in-process and produce because of the friction.

Optionally, the two ends of the peripheral side wall of the rotating cylinder are both fixedly connected with limiting rings coaxially.

Through adopting above-mentioned technical scheme, the spacing ring can be spacing on a set of cable rotates a section of thick bamboo, makes the cable slide according to the limited direction to improve the laying quality among the cable laying process, reduce and lay the degree of difficulty.

Optionally, a chamfer is formed on one side, facing the other limiting ring, of the limiting ring on the same rotating cylinder.

Through adopting above-mentioned technical scheme, the limiting displacement of spacing ring can further be strengthened to the chamfer, and can reduce the cable and slide the in-process and lead to the damage of skin production with spacing ring friction.

Optionally, the equal coaxial fixedly connected with cylindrical first connecting block in bracing piece both ends, two square second connecting blocks of first connecting block lateral wall fixedly connected with, two second connecting block intervals set up and are in the same footpath of first connecting block and upwards, the bracing piece drives first connecting block and second connecting block and slides and rotate and connect on the curb plate, set up flutedly along first connecting block footpath item on the second connecting block, when the second connecting block rotates on the curb plate, the curb plate rotates and gets into in the recess, the second connecting block passes through bolt and curb plate fixed connection.

Through adopting above-mentioned technical scheme, the bracing piece drives first connecting block and second connecting block and passes on the curb plate reachs adjacent curb plate, rotates the bracing piece and makes two blocks of curb plates get into the recess on the adjacent second connecting block in, utilizes the bolt fixed second connecting block and curb plate, convenient dismantlement installation.

Optionally, two sets of fixing mechanisms are arranged on each supporting rod, one set of fixing mechanism is used for fixing one rotating cylinder, each fixing mechanism comprises two fixing rings which are coaxially connected to the supporting rods in a sliding mode, the two fixing rings are respectively located at two ends of the rotating cylinder, a driving assembly for driving the fixing rings to slide is arranged in each supporting rod, and when the fixing rings slide towards the direction close to the rotating cylinder and tightly support the rotating cylinder, the rotating cylinder stops rotating.

Through adopting above-mentioned technical scheme, two solid fixed rings of drive assembly drive slide in opposite directions to rotate a section of thick bamboo and support tightly, after cable laying accomplishes, rotate a section of thick bamboo and support tightly by solid fixed ring and can't continue to rotate, thereby effectively reduce because of rotating the condition that a section of thick bamboo drive cable slided and lead to cable laying quality to descend.

Optionally, the fixing ring is coaxially and fixedly connected with an elastic friction ring towards one side of the rotating cylinder.

Through adopting above-mentioned technical scheme, the frictional force between solid fixed ring and the rotation section of thick bamboo is increased to the friction ring to further the restriction rotates a section of thick bamboo and rotates, and when solid fixed ring and a rotation section of thick bamboo extrusion friction ring, the friction ring has elasticity and warp, thereby supports tightly with the bracing piece, effectively increases the fixed action of fixed ring to a rotation section of thick bamboo.

Optionally, the drive assembly includes the connecting rod of following bracing piece endwise slip connection in the bracing piece, the connecting rod both ends are passed bracing piece fixed connection in solid fixed ring inner wall, coaxial rotation is connected with two-way lead screw in the bracing piece, two connecting rods respectively with two-way lead screw's positive and negative threaded area threaded connection.

Through adopting above-mentioned technical scheme, two solid fixed rings in the same set of fixed establishment of two-way lead screw rotation drive slide in opposite directions or back of the body mutually, and easy operation is convenient.

Optionally, a square driving rod is connected to the inside of the bidirectional screw rod along the axial direction of the supporting rod in a sliding manner, the length direction of the driving rod is parallel to the axial direction of the supporting rod, the length of the driving rod is greater than the axial length of the bidirectional screw rod, when one end of the driving rod slides into the adjacent bidirectional screw rod, the driving rod drives the two bidirectional screw rods to rotate simultaneously, and the fixing rings of the two groups of fixing mechanisms are close to or far away from the rotating cylinder simultaneously.

Through adopting above-mentioned technical scheme, the slip actuating lever is with two-way screw connection to two-way screws on the same bracing piece of simultaneous drive rotate, thereby drive two sets of fixed establishment and fix two rotating cylinders, easy operation is convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the two groups of rotating mechanisms are arranged at intervals, so that the mutual influence in the laying process of the two groups of cables is reduced, the condition that the laid cables drive the rotating mechanisms to rotate so as to drive the other group of rotating mechanisms to rotate is effectively reduced, and the condition that the laying quality is reduced as the laid cables slide on the cable bridge frame under the driving of the rotating mechanisms is reduced;

2. the supporting rod drives the first connecting block and the second connecting block to penetrate through the side plates to reach the adjacent side plates, the supporting rod is rotated to enable the two side plates to enter the grooves in the adjacent second connecting blocks, and the second connecting blocks and the side plates are fixed through bolts, so that the disassembly and the assembly are convenient;

3. the sliding driving rod connects the two bidirectional screw rods, so that the two bidirectional screw rods on the same supporting rod are driven to rotate simultaneously, the two groups of fixing mechanisms are driven to fix the two rotating cylinders, and the operation is simple and convenient.

Drawings

FIG. 1 is a schematic diagram of the related art;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic overall structure diagram of an embodiment of the present application, mainly used for showing a connecting assembly;

FIG. 4 is an enlarged view of part A of FIG. 3;

FIG. 5 is a partial schematic structural view of an embodiment of the present application, which is mainly used for illustrating a rotating mechanism;

FIG. 6 is an enlarged view of a portion B of FIG. 5;

FIG. 7 is a schematic cross-sectional view of a portion of an embodiment of the present application, mainly illustrating a driving mechanism;

FIG. 8 is an enlarged view of a portion C of FIG. 7;

description of reference numerals: 1. a bridge frame body; 11. a side plate; 111. a first through hole; 112. a first chute; 12. a ladder frame; 121. a support bar; 122. a second chute; 13. a connecting assembly; 131. a first connection block; 132. a second connecting block; 133. a groove; 2. a rotating mechanism; 21. a rotating cylinder; 22. a limiting ring; 23. a bearing; 3. a fixing mechanism; 31. a fixing ring; 32. an elastic friction ring; 33. a drive assembly; 331. a bidirectional lead screw; 332. a connecting rod; 333. a second through hole; 334. a drive rod.

Detailed Description

The present application is described in further detail below with reference to figures 2-8.

The embodiment of the application discloses step type cable testing bridge. Referring to fig. 2, a step type cable testing bridge includes crane span structure body 1, rotates on the crane span structure body 1 and is connected with multiunit slewing mechanism 2, and cable sliding connection is on slewing mechanism 2, and slewing mechanism 2 rotates the axis and is perpendicular with cable length direction, is provided with the fixed establishment 3 of 2 fixed slewing mechanism on the crane span structure body 1.

During the laying cable, the cable slides forward from slewing mechanism 2, and slewing mechanism 2 rotates and reduces the frictional force between cable and the crane span structure body 1, reduces the friction damage of cable laying in-process, and after the cable laying finishes, fixed establishment 3 fixes slewing mechanism 2 at the current position to effectively reduce and drive the condition that the cable slided and leads to the cable laying quality to descend because of slewing mechanism 2 rotates.

Referring to fig. 2, the bridge body 1 includes two rectangular side plates 11 and a ladder rack 12, and the ladder rack 12 is located between the two side plates 11. 11 length direction of curb plate is parallel with cable length direction, and ladder frame 12 includes many cylindrical support bars 121, and bracing piece 121 axis is perpendicular with 11 length direction of curb plate, and the equal fixedly connected with coupling assembling 13 in bracing piece 121 both ends, bracing piece 121 both ends are respectively towards different curb plates 11, and bracing piece 121 passes through coupling assembling 13 and can dismantle with adjacent curb plate 11 and be connected.

Referring to fig. 3 and 4, circular first through-hole 111 has all been seted up along bracing piece 121 axial on curb plate 11, coupling assembling 13 includes cylindrical first connecting block 131, the equal coaxial fixedly connected with first connecting block 131 in bracing piece 121 both ends, bracing piece 121 and first connecting block 131 sliding connection are in first through-hole 111, two first spouts 112 have been seted up to first through-hole 111 lateral wall, first spout 112 is in the same footpath of first through-hole 111, two second connecting blocks 132 of first connecting block 131 lateral wall fixedly connected with, two second connecting block 132 intervals set up and are in the same footpath of first connecting block 131, second connecting block 132 sliding connection is in first spout 112. The second connecting block 132 is provided with a groove 133 along the radial direction of the first connecting block 131, and when the second connecting block 132 rotates on the side plate 11, the side plate 11 rotates into the groove 133. The second connecting block 132 is screwed with a bolt, and the bolt penetrates through the side plate 11 to connect the side plate 11 with the second connecting block 132.

The supporting rod 121 drives the first connecting block 131 and the second connecting block 132 to pass through the first through hole 111 on the side plate 11 and reach the first through hole 111 of the adjacent side plate 11, the supporting rod 121 is rotated to enable the two side plates 11 to enter the groove 133 on the adjacent second connecting block 132, and the second connecting block 132 and the side plates 11 are fixed by bolts.

Referring to fig. 5 and 6, each support rod 121 is coaxially and rotatably connected with two sets of rotating mechanisms 2, the two sets of rotating mechanisms 2 are arranged at intervals, each rotating mechanism 2 comprises a cylindrical rotating cylinder 21 coaxially and rotatably connected to the support rod 121, a cable is slidably connected to the rotating cylinder 21 and abuts against the side wall of the rotating cylinder 21, two ends of the peripheral side wall of the rotating cylinder 21 are coaxially and fixedly connected with limiting rings 22, and the limiting ring 22 on the same support cylinder is provided with a chamfer facing one side of the other limiting ring 22.

The two limiting rings 22 and the side wall of the rotating cylinder 21 form a limiting groove, so that cables are bundled.

Referring to fig. 5, bearings 23 are coaxially and fixedly connected to both ends of the inner wall of the rotary drum 21, and the inner peripheral side wall of the bearing 23 is fixedly connected to the side wall of the support rod 121.

Referring to fig. 7 and 8, each support rod 121 is provided with two sets of fixing mechanisms 3 for fixing the rotating cylinder 21, each set of fixing mechanism 3 is used for fixing one rotating cylinder 21, each fixing mechanism 3 includes two fixing rings 31 axially slidably connected to the support rod 121 along the support rod 121, the two fixing rings 31 are respectively located at two ends of the rotating cylinder 21, each fixing ring 31 is coaxially and fixedly connected with an elastic friction ring 32 facing one side of the rotating cylinder 21, each elastic friction ring 32 is a rubber ring, and a driving assembly 33 for driving the fixing rings 31 to slide is arranged in the support rod 121.

Referring to fig. 7 and 8, the driving assembly 33 includes a bidirectional screw 331 coaxially rotatably connected to the support rod 121, a second sliding slot 122 is axially formed in the support rod 121 along the support rod 121, a connecting rod 332 is slidably connected to the second sliding slot 122, two ends of the connecting rod 332 penetrate through the second sliding slot 122 and are fixedly connected to the inner wall of the fixing ring 31, and two connecting rods 332 in the same fixing mechanism 3 are respectively in threaded connection with the two-way screw 331 in the front and back different threaded areas. A square second through hole 333 is formed in the bidirectional screw 331 along the axial direction of the bidirectional screw 331, a square driving rod 334 is connected in the second through hole 333 in a sliding mode, the length direction of the driving rod 334 is parallel to the axial direction of the bidirectional screw 331, and the length of the driving rod 334 is larger than the axial length of the bidirectional screw 331. When one end of the driving rod 334 slides into the adjacent two-way screw 331, the driving rod 334 drives the two-way screws 331 to rotate simultaneously, and drives the connecting rods 332 on the two sets of fixing mechanisms 3 to slide towards or away from the rotating cylinder 21 simultaneously.

One end of the driving rod 334 slides into the adjacent two-way screw 331 to connect the two-way screws 331, the two-way screw 331 rotates to drive the connecting rod 332 to drive the fixing ring 31 to slide, the fixing ring 31 drives the elastic friction ring 32 to abut against the rotating cylinder 21, and the elastic friction ring 32 is extruded and deformed by the rotating cylinder 21 and the fixing ring 31, so as to fix the rotating cylinder 21.

The implementation principle of the step type cable bridge frame of the embodiment of the application is as follows: firstly, the bridge frame body 1 is installed, the two side plates 11 are placed in parallel, and one end of the support rod 121 penetrates through the first through hole 111 in one side plate 11 and reaches the first through hole 111 in the other side plate 11. At this time, the grooves 133 on the second connecting blocks 132 at the two ends of the supporting rod 121 are aligned with the adjacent side plates 11, when the supporting rod 121 is rotated, the side plates 11 are rotated into the grooves 133, and the second connecting blocks 132 are connected with the side plates 11 through bolts.

When the cable is laid, the cable slides in a limiting groove formed by the two limiting rings 22 and the side wall of the rotating cylinder 21, and the cable drives the rotating cylinder 21 to rotate. After the cable is laid, the driving rod 334 slides to connect the two bidirectional screw rods 331, and the two bidirectional screw rods 331 can rotate by rotating one bidirectional screw rod 331.

The bidirectional screw 331 rotates and drives the connecting rod 332 to drive the fixing ring 31 to slide towards the direction close to the rotating cylinder 21, after the elastic friction ring 32 abuts against the rotating cylinder 21, the fixing ring 31 continues to slide, and the elastic friction ring 32 abuts against the rotating cylinder 21 tightly. The fixing ring 31 and the rotating cylinder 21 extrude the elastic friction ring 32, so that the elastic friction ring 32 deforms, the inner wall of the elastic friction ring 32 abuts against the side wall of the supporting rod 121, the friction force between the elastic friction ring 32 and the supporting rod 121 is increased, and the rotation of the rotating cylinder 21 is effectively reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a ladder formula cable testing bridge, includes crane span structure body (1), crane span structure body (1) includes two blocks of curb plates (11) and ladder frame (12), its characterized in that: ladder frame (12) are including dismantling many spinal branchs vaulting pole (121) of connecting between two blocks of curb plates (11), bracing piece (121) length direction is perpendicular with cable length direction, coaxial rotation is connected with two sets of slewing mechanism (2) on bracing piece (121), and two sets of slewing mechanism (2) intervals set up, and cable sliding connection is on slewing mechanism (2).

2. The stepped cable tray of claim 1, wherein: the supporting rod (121) is a cylindrical rod, the rotating mechanism (2) comprises a rotating barrel (21) which is coaxially and rotatably connected to the supporting rod (121), the cable is slidably connected to the rotating barrel (21), and the cable is abutted to the side wall of the rotating barrel (21).

3. The stepped cable tray of claim 2, wherein: the two ends of the peripheral side wall of the rotating cylinder (21) are coaxially and fixedly connected with limit rings (22).

4. The stepped cable tray of claim 3, wherein: and one side of the limiting ring (22) on the same rotating cylinder (21) facing to the other limiting ring (22) is provided with a chamfer.

5. The stepped cable tray of claim 4, wherein: the utility model discloses a supporting rod, including bracing piece (121), bracing piece (121) both ends equal coaxial fixedly connected with cylindrical first connecting block (131), two square second connecting blocks (132) of first connecting block (131) lateral wall fixedly connected with, two second connecting block (132) intervals set up and are in the same footpath of first connecting block (131), bracing piece (121) drive first connecting block (131) and second connecting block (132) slide and rotate and connect on curb plate (11), set up fluted (133) along first connecting block (131) footpath item on second connecting block (132), when second connecting block (132) rotate on curb plate (11), curb plate (11) rotate and get into in recess (133), second connecting block (132) pass through bolt and curb plate (11) fixed connection.

6. The stepped cable tray of claim 5, wherein: be provided with two sets of fixed establishment (3) on every bracing piece (121), a set of fixed establishment (3) are used for fixed a rotation section of thick bamboo (21), fixed establishment (3) are including two solid fixed ring (31) of coaxial sliding connection on bracing piece (121), and two solid fixed ring (31) are located rotation section of thick bamboo (21) both ends respectively, be provided with drive assembly (33) that solid fixed ring (31) of drive slided in bracing piece (121), when solid fixed ring (31) to being close to rotate section of thick bamboo (21) direction and will rotate section of thick bamboo (21) and support tightly, it rotates section of thick bamboo (21) stall to rotate.

7. The stepped cable tray of claim 6, wherein: the fixing ring (31) is coaxially and fixedly connected with an elastic friction ring (32) towards one side of the rotating cylinder (21).

8. The stepped cable tray of claim 7, wherein: drive assembly (33) are including connecting rod (332) along bracing piece (121) axial sliding connection in bracing piece (121), bracing piece (121) fixed connection in solid fixed ring (31) inner wall is passed at connecting rod (332) both ends, coaxial rotation is connected with two-way lead screw (331) in bracing piece (121), two connecting rod (332) respectively with the positive and negative screw thread district threaded connection of two-way lead screw (331).

9. The stepped cable tray of claim 8, wherein: along bracing piece (121) axial sliding connection there is square actuating lever (334) in two-way lead screw (331), actuating lever (334) length direction and bracing piece (121) axial direction are parallel, actuating lever (334) length is greater than two-way lead screw (331) axial length, and when actuating lever (334) one end slided in adjacent two-way lead screw (331), actuating lever (334) drove two-way lead screw (331) and rotate simultaneously, and solid fixed ring (31) of two sets of fixed establishment (3) are close to simultaneously or keep away from and rotate a section of thick bamboo (21).