CN212649031U

CN212649031U - Step type cable bridge

Info

Publication number: CN212649031U
Application number: CN202021483696.5U
Authority: CN
Inventors: 张志强
Original assignee: Zaoyang Ningyuan Electrical Equipment Co ltd
Current assignee: Zaoyang Ningyuan Electrical Equipment Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-02
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a ladder formula cable testing bridge. Belong to cable erection equipment technical field. The cable bridge mainly aims at solving the problem that the width of the existing stepped cable bridge is not adjustable. It is mainly characterized in that: the ladder comprises a U-shaped first side plate, a second side plate and a plurality of ladder steps, wherein each ladder step comprises an inner barrel, a hollow outer barrel and a positioning screw, one end of each outer barrel is fixedly connected to the first side plate, one end of each inner barrel is fixedly connected to the second side plate, and the other end of each inner barrel is inserted into the outer barrel; one side of the outer cylinder body is provided with a plurality of through first positioning holes, one side of the inner cylinder body is provided with a plurality of second positioning holes, the distance between the first positioning holes is larger than the distance between the second positioning holes, and the positioning screws penetrate through the first positioning holes and are screwed into the second positioning holes. This ladder formula cable testing bridge is through the length that changes the ladder shelves to realize the purpose of crane span structure width adjustable, satisfy the requirement of laying of unidimensional cable in the actual installation.

Description

Step type cable bridge

Technical Field

The utility model relates to a cable erection equipment technical field specifically is a ladder formula cable testing bridge.

Background

The cable bridge is divided into structures of a groove type, a tray type, a step type, a grid type and the like, and comprises a support, a supporting arm, an installation accessory and the like. The inner bridge frame of the building can be independently erected and can also be attached to various buildings and pipe rack supports, the characteristics of simple structure, attractive appearance, flexible configuration, convenient maintenance and the like are reflected, and all parts need to be galvanized.

The ladder type cable bridge has the characteristics of high strength, light weight, low cost, attractive appearance, convenience in installation, good air permeability and the like, is suitable for laying general cables with larger diameters, and is particularly suitable for laying high-voltage and low-voltage cables with large loads. But traditional ladder formula cable testing bridge comprises two U type curb plates and a plurality of ladder shelves of interval fixing between two U type curb plates, and the both ends and the U type curb plate welded fastening of ladder shelves, the width is not adjustable, can't satisfy the requirement of laying of not unidimensional cable.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a stepped cable bridge.

In order to achieve the above object, the utility model provides a following technical scheme: a ladder type cable bridge is characterized by comprising a U-shaped first side plate, a U-shaped second side plate and a plurality of ladder bars, wherein the ladder bars are distributed between the first side plate and the second side plate at equal intervals and the length of the ladder bars can be adjusted; the ladder comprises an inner cylinder, a hollow outer cylinder and a positioning screw, wherein one end of the outer cylinder is fixedly connected to the lower bending surface of the first side plate, one end of the inner cylinder is fixedly connected to the lower bending surface of the second side plate, and the other end of the inner cylinder is inserted into the outer cylinder; one side of outer barrel is equipped with the first locating hole that a plurality of link up along length direction, one side of interior barrel is equipped with a plurality of second locating hole along length direction, and is double-phase adjacent interval between the first locating hole is greater than two adjacent interval between the second locating hole, set screw's screw rod is equipped with the external screw thread outward, all be equipped with in first locating hole and the second locating hole with external screw thread matched with internal thread, set screw passes in first locating hole screw in second locating hole, the internal surface of first curb plate and second curb plate all is equipped with the strengthening rib.

In the above scheme, if the number of the first positioning holes is a, the distance between two adjacent first positioning holes is b, and the number of the second positioning holes is c, then a × b = (a + 2) × c, a > 1.

In the scheme, the outer cylinder and the inner cylinder are both stainless steel cylinders.

In the scheme, the surfaces of the first side plate, the second side plate and the ladder stop are all provided with a zinc coating.

In the above scheme, the inner diameter of the outer cylinder body is equal to the outer diameter of the inner cylinder body.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a ladder formula cable testing bridge, ladder shelves include interior barrel, hollow outer barrel and set screw, and through sliding interior barrel in the outer barrel, it is fixed with outer barrel and interior barrel in passing first locating hole screw in second locating hole with the set screw, have changed the length of ladder shelves to realize the purpose of crane span structure width adjustable, satisfy the requirement of laying of unidimensional and quantity cable in the actual installation, improved the utilization ratio of ladder formula cable testing bridge.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2, 3 and 4 are schematic views of the adjusting structure of the present invention.

In the figure: 1. a first side plate; 2. a second side plate; 3. a ladder stop; 4. an outer cylinder; 5. an inner cylinder; 6. a set screw; 7. a first positioning hole; 8. a second positioning hole; 9. and (5) reinforcing ribs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a ladder type cable bridge comprises a U-shaped first side plate 1, a U-shaped second side plate 2 and a plurality of ladder bars 3 which are distributed between the first side plate 1 and the second side plate 2 at equal intervals and can adjust the length; step 3 includes barrel 5, hollow outer barrel 4 and set screw 6, and outer barrel 4 and inner barrel 5 are the stainless steel barrel, and the internal diameter of outer barrel 4 equals with the external diameter of inner barrel 5, and the one end fixed connection of outer barrel 4 is on the curved surface of the lower part of first curb plate 1, and the one end fixed connection of inner barrel 5 is on the curved surface of the lower part of second curb plate 2, and the other end cartridge of inner barrel 5 is in outer barrel 4.

When the cable is laid, the cable moves on the surface of the ladder rail 3 by the rolling of the outer cylinder body 4 and the inner cylinder body 5, the contact surface of the cable surface and the ladder rail 3 is changed into rolling friction from original sliding friction, so that the friction force is reduced, the damage caused by the easy galling of the cable surface is avoided, the surface layer protective layer of the cable is protected, and the potential safety hazards such as electric leakage and short circuit caused by the damage of the cable surface layer are avoided.

One side of the outer cylinder 4 is provided with a plurality of through first positioning holes 7 along the length direction, one side of the inner cylinder 5 is provided with a plurality of second positioning holes 8 along the length direction, the distance between two adjacent first positioning holes 7 is larger than the distance between two adjacent second positioning holes 8, the number of the first positioning holes 7 is a, the distance between two adjacent first positioning holes 7 is b, and the number of the second positioning holes 8 is c, then a & ltb & gt (= a + 2) & gt c, a & gt 1. The external screw thread is equipped with outward to set screw 6's screw rod, all be equipped with in first locating hole 7 and the second locating hole 8 with external screw thread matched with internal thread, set screw 6 passes in first locating hole 7 screw in second locating hole 8, first curb plate 1 all is equipped with strengthening rib 9 with the internal surface of second curb plate 2, first curb plate 1,

second curb plate

2 and 3 surfaces of ladder shelves all are equipped with the galvanizing coat.

The working principle is as follows: as shown in fig. 2-4, the inner cylinder 5 is inserted into the outer cylinder 4, and since the distance between two adjacent first positioning holes 7 is greater than the distance between two adjacent second positioning holes 8, the inner cylinder 5 slides in the outer cylinder 4, when one first positioning hole 7 corresponds to one second positioning hole 8, none of the second positioning holes 8 of the other first positioning holes 7 around the one first positioning hole 7 and the one second positioning hole 8 can correspond to each other, for example, when the first positioning hole 72 corresponds to the second positioning hole 82; the inner cylinder 5 slides towards the outer cylinder 4, so that the first positioning hole 73 and the second positioning hole 83 are obtained; likewise, the inner cylinder 5 continues to slide towards the outer cylinder 4, so that the first positioning hole 74 is corresponding to the second positioning hole 84.

When the outer cylinder 4 is provided with only one first positioning hole 7, or the outer cylinder 4 is provided with a plurality of first positioning holes 7, and the distance between two adjacent first positioning holes 7 is equal to the distance between two adjacent second positioning holes 8, the inner cylinder 5 can be connected with the outer cylinder 4 and the inner cylinder 5 by using the point positioning screws 6 only when the sliding distance of each time is equal to the distance between two adjacent second positioning holes 8; and the utility model provides an interior barrel 5 only needs a segment distance to slide in the barrel 4 outside at every turn, just has first locating hole 7 and second locating hole 8 corresponding, then fixes it with set screw 6, and this segment distance is less than the interval between two adjacent second locating holes 8 to realized becoming more meticulous to the crane span structure width adjustment, with, satisfy the requirement of laying of not unidimensional cable in the actual installation.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A ladder type cable bridge is characterized by comprising a U-shaped first side plate (1), a U-shaped second side plate (2) and a plurality of ladder bars (3) which are distributed between the first side plate (1) and the second side plate (2) at equal intervals and can adjust the length; the ladder rail (3) comprises an inner cylinder body (5), a hollow outer cylinder body (4) and a positioning screw (6), one end of the outer cylinder body (4) is fixedly connected to the lower bending surface of the first side plate (1), one end of the inner cylinder body (5) is fixedly connected to the lower bending surface of the second side plate (2), and the other end of the inner cylinder body (5) is inserted into the outer cylinder body (4); one side of outer barrel (4) is equipped with first locating hole (7) that a plurality of link up along length direction, one side of interior barrel (5) is equipped with a plurality of second locating hole (8) along length direction, and is double-phase adjacent interval between first locating hole (7) is greater than two adjacent interval between second locating hole (8), the screw rod of set screw (6) is equipped with the external screw thread outward, all be equipped with in first locating hole (7) and second locating hole (8) with external screw thread matched with internal thread, set screw (6) pass in first locating hole (7) screw in second locating hole (8), the internal surface of first curb plate (1) and second curb plate (2) all is equipped with strengthening rib (9).

2. The stepped cable tray according to claim 1, wherein the number of the first positioning holes (7) is a, the distance between two adjacent first positioning holes (7) is b, and the number of the second positioning holes (8) is c, then a + b = (a + 2) = c, a > 1.

3. The stepped cable tray as claimed in claim 1, wherein the outer cylinder (4) and inner cylinder (5) are stainless steel cylinders.

4. The stepped cable bridge stand according to claim 1, wherein the first side plate (1), the second side plate (2) and the step (3) are provided with zinc plating on their surfaces.

5. A stepped cable tray according to claim 1, wherein the inner diameter of the outer cylinder (4) and the outer diameter of the inner cylinder (5) are equal.