Bridge guardrail pulley block device for cable release

Abstract

This utility model discloses a bridge railing pulley system for cable laying, comprising an upper connecting steel pipe and a lower connecting clamp. The upper connecting steel pipe and the lower connecting clamp cooperate to wrap around the bridge railing and are locked together by a connecting component. A mounting base is fixedly connected to the upper connecting steel pipe, and a pulley assembly is rotatably installed inside the mounting base. The pulley assembly is detachable from the mounting base. The mounting base is provided with locking bolts to fix the pulley assembly, and the pulley assembly is used to guide the movement of the optical cable. This utility model can be installed on bridge railings for convenient optical cable laying. During installation, it is only necessary to use the upper connecting steel pipe and the lower connecting clamp to wrap and fix it to the railing. The rubber pad inside the lower connecting clamp ensures a tighter fit and prevents displacement. The pulley assembly is installed inside the mounting base, is detachable, and the direction of the pulley can be adjusted as needed to adjust the direction of the optical cable. The operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of optical cable laying technology, and in particular to a bridge railing pulley block device for laying cables. Background Technology

[0002] Since fiber optic cable laying must be carried out during maintenance windows, and the use of large equipment is not permitted, suitable cable-laying tools are required for the operation. Because the bridge railings in the actual construction section are steel railings with 60mm diameter steel pipes for the top handrails, fiber optic cable laying is inconvenient. Therefore, a suitable cable-laying tool is needed to meet the construction requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bridge railing pulley block device for cable laying, which aims to solve the technical problem that it is inconvenient to lay optical cables on bridge railings in actual construction sections in the existing technology.

[0004] The technical solution of this utility model is: a bridge railing pulley assembly device for cable laying, comprising an upper connecting steel pipe and a lower connecting clamp. The upper connecting steel pipe and the lower connecting clamp cooperate to wrap the bridge railing and are locked together by a connecting component. An installation base is fixedly connected to the upper connecting steel pipe. A pulley assembly is rotatably installed inside the installation base. The pulley assembly is detachable from the installation base. The installation base is provided with locking bolts to fix the pulley assembly. The pulley assembly is used to guide the movement of the optical cable.

[0005] Furthermore, the longitudinal section of the upper connecting steel pipe in this utility model is an inverted arc shape, and upper connecting end plates are respectively provided on both sides of the two ends of the upper connecting steel pipe. The two upper connecting end plates at the same end are symmetrically arranged, and each upper connecting end plate is provided with an upper connecting hole.

[0006] Furthermore, the corners of the upper connecting end plate described in this utility model are rounded.

[0007] Furthermore, the lower connecting clip of this utility model has two upper connecting end plates respectively corresponding to the two ends of the upper connecting steel pipe, and the two ends of the lower connecting clip are respectively provided with lower connecting end plates, and the lower connecting end plates are provided with lower connecting holes.

[0008] Furthermore, the inner surface of the lower connecting clip described in this utility model is provided with a rubber pad.

[0009] Furthermore, the connecting assembly described in this utility model includes a connecting bolt and a connecting nut, wherein the connecting bolt passes through the corresponding upper connecting hole and the lower connecting hole and is locked and fixed with the connecting nut.

[0010] Furthermore, the bottom of the mounting base in this utility model is provided with a connecting piece, which is attached to and welded to the outer surface of the upper connecting steel pipe. The top of the mounting base is provided with a cavity, and a positioning post is provided in the middle of the cavity.

[0011] Furthermore, the pulley assembly described in this utility model includes a pulley seat and two pulleys arranged vertically within the pulley seat. The pulley seat has a recessed positioning groove around its periphery, and a positioning hole in the center of the pulley seat that mates with the positioning post. The pulley seat is placed within the recessed cavity, and the optical cable moves through the two pulleys.

[0012] Furthermore, the mounting base of this utility model is provided with multiple locking holes, which are located on the side of the positioning groove. Multiple locking bolts are provided, which pass through the locking holes and abut against the positioning groove to fix the pulley seat.

[0013] Compared with the prior art, this utility model has the following advantages: This utility model can be installed on the bridge railing handrail for convenient optical cable laying. During installation, it is only necessary to use the upper connecting steel pipe and the lower connecting clip to wrap and fix it on the handrail. The rubber pad inside the lower connecting clip can make the installation more secure and avoid displacement. The pulley assembly is installed in the mounting base, which can be disassembled and the direction of the pulley can be adjusted as needed, thereby adjusting the direction of the optical cable. The operation is simple and convenient. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 for Figure 2 A magnified view of part A in the middle.

[0017] The components are as follows: 1. Upper connecting steel pipe; 1a. Upper connecting end plate; 1b. Upper connecting hole; 2. Lower connecting clip; 2a. Lower connecting end plate; 2b. Lower connecting hole; 2c. Rubber pad; 3. Connecting assembly; 301. Connecting bolt; 302. Connecting nut; 4. Mounting base; 4a. Cavity; 4b. Positioning post; 4c. Locking hole; 5. Pulley assembly; 501. Pulley seat; 501a. Positioning groove; 501b. Positioning hole; 502. Pulley; 6. Locking bolt; 7. Connecting piece. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Example:

[0020] The accompanying drawings illustrate a specific embodiment of the bridge railing pulley block device for cable laying according to the present invention. Figure 1 , Figure 2 It mainly includes an upper connecting steel pipe 1 and a lower connecting clamp 2. The upper connecting steel pipe 1 and the lower connecting clamp 2 work together to wrap the bridge railing and are locked together by the connecting component 3.

[0021] Specifically, the longitudinal section of the upper connecting steel pipe 1 has an inverted arc shape. Upper connecting end plates 1a are provided on both sides of both ends of the upper connecting steel pipe 1. The two upper connecting end plates 1a at the same end are symmetrically arranged, and each upper connecting end plate 1a is provided with an upper connecting hole 1b. The two outer corners of the upper connecting end plate 1a have a rounded corner structure, which plays a certain protective role.

[0022] The lower connecting clamp 2 has two upper connecting end plates 1a, respectively corresponding to both ends of the upper connecting steel pipe 1. Each end of the lower connecting clamp 2 has a lower connecting end plate 2a, and each lower connecting end plate 2a has a lower connecting hole 2b. The inner surface of the lower connecting clamp 2 is provided with a rubber pad 2c, such as... Figure 3 As shown, the rubber pad 2c allows for a tighter fit and prevents displacement.

[0023] The connecting assembly 3 includes a connecting bolt 301 and a connecting nut 302. The connecting bolt 301 passes through the corresponding upper connecting hole 1b and lower connecting hole 2b and is locked and fixed with the connecting nut 302.

[0024] An mounting base 4 is fixedly connected to the upper connecting steel pipe 1. A connecting piece 7 is provided at the bottom of the mounting base 4. The connecting piece 7 is attached to and welded to the outer surface of the upper connecting steel pipe 1, thereby achieving a stable installation of the mounting base 4. A cavity 4a is provided at the top of the mounting base 4 for installing the pulley assembly 5. A positioning post 4b is provided in the middle of the cavity 4a for positioning the pulley assembly 5.

[0025] A pulley assembly 5 is rotatably mounted inside the mounting base 4. The pulley assembly 5 includes a pulley seat 501 and two pulleys 502 arranged vertically within the pulley seat 501. The pulley seat 501 has a recessed positioning groove 501a around its periphery, and a positioning hole 501b in the center of the pulley seat 501 that mates with the positioning post 4b. The pulley seat 501 is placed in the cavity 4a, and the positioning hole 501b mates with the positioning post 4b for insertion, thus achieving positioning and installation. The optical cable moves through the two pulleys 502.

[0026] The pulley assembly 5 and the mounting base 4 are detachable. The mounting base 4 has two locking bolts 6 for fixing the pulley assembly 5 and two locking holes 4c located on the side of the positioning groove 501a. The two locking bolts 6 pass through the two locking holes 4c and abut against the positioning groove 501a to fix the pulley seat 501, thus achieving the locking installation of the pulley assembly 5. Furthermore, since the locking bolts 6 abut against the positioning groove 501a and are also located above the radially outward protruding part at the bottom of the pulley seat 501, they also limit the movement of the pulley seat 501, preventing it from moving upward and thus better preventing the pulley assembly 5 from coming out of the mounting base 4.

[0027] In practical use, this utility model can be simply used by wrapping and fixing the upper connecting steel pipe 1 and the lower connecting clip 2 onto the handrail. The connecting bolt 301 and the connecting nut 302 can be used to quickly lock and fix the cable. The optical cable moves through the two pulleys 502. When it is necessary to adjust the direction of the optical cable, the pulley assembly 5 can be loosened by turning the locking bolt 6. After adjusting the direction of the pulley assembly 5 by turning it appropriately, the locking bolt 6 can be used to lock and fix it. The operation is simple and convenient.

[0028] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A bridge railing pulley block device for cable laying, characterized in that: It includes an upper connecting steel pipe (1) and a lower connecting clip (2). The upper connecting steel pipe (1) and the lower connecting clip (2) cooperate to wrap the bridge railing and are locked together by a connecting component (3). An installation base (4) is fixedly connected to the upper connecting steel pipe (1). A pulley assembly (5) is rotatably installed in the installation base (4). The pulley assembly (5) and the installation base (4) are detachable. The installation base (4) is provided with a locking bolt (6) to fix the pulley assembly (5). The pulley assembly (5) is used to guide the movement of the optical cable.

2. A bridge railing pulley block device for cable laying according to claim 1, characterized in that: The longitudinal section of the upper connecting steel pipe (1) is an inverted arc structure. The upper connecting steel pipe (1) has upper connecting end plates (1a) on both sides of both ends. The two upper connecting end plates (1a) at the same end are symmetrically arranged. Each upper connecting end plate (1a) has an upper connecting hole (1b).

3. A bridge railing pulley block device for cable laying according to claim 2, characterized in that: The corners of the upper connecting end plate (1a) are rounded.

4. A bridge railing pulley block device for cable laying according to claim 2, characterized in that: The lower connecting clip (2) has two upper connecting end plates (1a) respectively corresponding to the two ends of the upper connecting steel pipe (1). The two ends of the lower connecting clip (2) are respectively provided with lower connecting end plates (2a), and the lower connecting end plates (2a) are provided with lower connecting holes (2b).

5. A bridge railing pulley block device for cable laying according to claim 4, characterized in that: The inner surface of the lower connecting clip (2) is provided with a rubber pad (2c).

6. A bridge railing pulley block device for cable laying according to claim 4, characterized in that: The connecting assembly (3) includes a connecting bolt (301) and a connecting nut (302). The connecting bolt (301) passes through the corresponding upper connecting hole (1b) and lower connecting hole (2b) and is locked and fixed with the connecting nut (302).

7. A bridge railing pulley block device for cable laying according to claim 1, characterized in that: The bottom of the mounting base (4) is provided with a connecting piece (7), which is attached to and welded to the outer surface of the upper connecting steel pipe (1). The top of the mounting base (4) is provided with a cavity (4a), and the middle of the cavity (4a) is provided with a positioning post (4b).

8. A bridge railing pulley block device for cable laying according to claim 7, characterized in that: The pulley assembly (5) includes a pulley seat (501) and two pulleys (502) arranged vertically within the pulley seat (501). The pulley seat (501) has a recessed positioning groove (501a) around its periphery. The pulley seat (501) has a positioning hole (501b) in the middle that mates with the positioning post (4b). The pulley seat (501) is placed in the cavity (4a), and the optical cable moves through the two pulleys (502).

9. A bridge railing pulley block device for cable laying according to claim 8, characterized in that: The mounting base (4) is provided with a plurality of locking holes (4c), the locking holes (4c) are located on the side of the positioning groove (501a), and there are a plurality of locking bolts (6). The locking bolts (6) pass through the locking holes (4c) and abut against the positioning groove (501a) to fix the pulley seat (501).

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