Telescopic high-voltage cable pay-off pulley device

Abstract

The utility model discloses a telescopic high-voltage cable paying-off pulley device which comprises a fixed seat, a sleeve is installed on the fixed seat, a sliding groove is formed in the sleeve, a telescopic mechanism is arranged on the sliding groove, the pulley device further comprises a pulley assembly, and a limiting mechanism is arranged on the pulley assembly and used for limiting movement of a cable. A cable is placed on the pulley, the pulley is used for assisting the cable in moving, the cable is prevented from being dragged on the ground, and therefore a protective sleeve of the cable is prevented from being abraded, the horizontal position of the pulley assembly is convenient to adjust through the telescopic mechanism, and auxiliary paying-off of a plurality of cables is convenient. And the cable can be limited by using the limiting mechanism, so that the cable can be prevented from moving when the operation is stopped.

Description

Technical Field

[0001] This utility model relates to the field of cable construction technology, and in particular to a retractable high-voltage cable laying pulley device. Background Technology

[0002] With the rapid expansion of high-voltage power transmission networks, especially the surge in demand for ultra-high-voltage projects, urban underground cabling, and power transmission lines in complex terrains (such as mountains, rivers, and densely populated urban areas), the efficiency and safety of high-voltage cable laying have become core challenges for these projects. When constructing underground cables in cities, pulleys are usually used to support the cables to prevent them from wearing out.

[0003] A search revealed Chinese patent application number 201721341923.9, which discloses a wide-groove pulley for cable laying corners. This pulley includes two circular perforated plates, several pulleys, two fixing rods, and a mounting plate. The pulleys are evenly fixed to the inner edges of the two circular perforated plates with bolts. One end of each fixing rod is fixed parallel to the surface of the center of the two circular perforated plates with fixing bolts. The other end of each circular perforated plate is fixed to the bottom of the mounting plate with fixing bolts. The top of the mounting plate has mounting holes. The pulley in this patent has the following drawback: it lacks a corresponding limiting mechanism to limit and fix the cable, allowing the cable to move during construction pauses. Utility Model Content

[0004] The purpose of this invention is to further address the shortcomings of existing technologies by proposing a retractable high-voltage cable laying pulley device.

[0005] This device is further configured to achieve the above objectives, and the present invention adopts the following technical solution:

[0006] A retractable high-voltage cable laying pulley device includes a fixed base, a sleeve installed on the fixed base, a sliding groove provided on the sleeve, a telescopic mechanism provided on the sliding groove, and a pulley assembly further includes a pulley assembly, on which a limit mechanism is provided to restrict the movement of the cable.

[0007] The pulley assembly includes a mounting frame, one end of which has a fixing groove at its bottom. A connecting frame is detachably mounted on the outer wall of the end of the mounting frame away from the fixing groove by bolts. A pulley is mounted on the connecting frame via a rotating shaft, and the rotating shaft and the pulley are connected by a key.

[0008] As a further improvement of this utility model: the limiting mechanism includes a hydraulic rod, which is mounted on the top of the mounting frame via a bracket, and a U-shaped connector is installed at the output end of the hydraulic rod.

[0009] As a further improvement of this utility model: the limiting mechanism further includes a limiting seat, which is detachably installed on the end of the connecting member near the pulley by bolts. The limiting seat is provided with an arc-shaped groove, and a friction plate is provided in the groove.

[0010] As a further embodiment of this utility model: the limiting mechanism further includes a limiting block and a limiting plate. The limiting block is detachably installed on the end of the connecting member away from the limiting seat by bolts. The end of the rotating shaft near the mounting bracket is equipped with a limiting plate by a connecting rod. A straight block is provided on the limiting plate.

[0011] As a further embodiment of this utility model: a sliding groove is provided inside the sleeve, a screw is rotatably installed in the sliding groove, and cover plate two and cover plate one are detachably installed at the front and rear ends of the sleeve by bolts respectively.

[0012] As a further embodiment of this utility model: a rotating handle is installed at one end of the screw near the cover plate, and an mounting plate is installed on the screw via a sliding block. A mounting bracket is detachably installed on the end of the mounting plate away from the sliding block via bolts.

[0013] As a further improvement of this utility model: the fixing seat and the sleeve are connected by a support rod for auxiliary support, and the bottom of the fixing seat is provided with a threaded hole and a reinforcing rib.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By placing the cable on the pulley, the cable movement is assisted by the pulley, avoiding dragging the cable on the ground and thus preventing wear on the cable's protective sheath. The telescopic mechanism facilitates the adjustment of the horizontal position of the pulley assembly, making it easy to assist in the laying of multiple cables. The limit mechanism can limit the cable movement, preventing the cable from moving when the operation stops.

[0016] 2. By using a hydraulic rod to drive the connecting parts to press down, the cable is fixed and clamped during the pressing down of the limit seat. At the same time, the limit block presses down and cooperates with the limit plate. After the pulley rotates a certain angle, the limit plate will contact the limit block to lock and fix the limit plate and the pulley, preventing the pulley from rotating. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the retractable high-voltage cable laying pulley device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the retraction mechanism proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the pulley assembly proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the pulley assembly proposed in this utility model.

[0021] In the diagram: 1-fixed seat, 2-sleeve, 3-pulley assembly, 4-limiting mechanism, 5-cover plate one, 6-cover plate two, 7-handle, 8-support rod, 9-slide groove, 10-screw, 11-translational slide block, 12-mounting plate, 13-mounting bracket, 14-connecting bracket, 15-rotating shaft, 16-pulley, 17-limiting disc, 18-hydraulic rod, 19-limiting block, 20-limiting seat. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] Example

[0025] Retractable high-voltage cable laying pulley device, such as Figures 1-4 As shown, the device includes a fixed base 1, a sleeve 2 installed on the fixed base 1, a sliding groove 9 provided on the sleeve 2, a telescopic mechanism provided on the sliding groove 9, and a pulley device also includes a pulley assembly 3, with a limit mechanism 4 provided on the pulley assembly 3 to limit the movement of the cable.

[0026] The pulley assembly 3 includes a mounting bracket 13. A fixing groove is provided at the bottom of one end of the mounting bracket 13. A connecting bracket 14 is detachably mounted on the outer wall of the end of the mounting bracket 13 away from the fixing groove by bolts. A pulley 16 is mounted on the connecting bracket 14 by a rotating shaft 15. The rotating shaft 15 and the pulley 16 are connected by a key.

[0027] By placing the cable on the pulley 16, the cable is moved using the pulley 16 to avoid dragging it on the ground, thereby preventing wear on the cable's protective sheath. The horizontal position of the pulley assembly 3 can be easily adjusted using the telescopic mechanism, facilitating the laying of multiple cables. The cable can be limited using the limiting mechanism 4 to prevent it from moving when the operation stops.

[0028] This device is further configured such as Figure 4As shown, the limiting mechanism 4 includes a hydraulic rod 18, which is mounted on the top of the mounting frame 13 via a bracket. A U-shaped connector is installed at the output end of the hydraulic rod 18. The control method and circuit connection of the hydraulic rod 18 are existing technical solutions and will not be described in detail here.

[0029] The limiting mechanism 4 also includes a limiting seat 20, which is detachably installed on the end of the connecting piece near the pulley 16 by bolts. The limiting seat 20 is provided with an arc-shaped groove, and a friction plate is provided in the groove to increase the friction of the limiting seat 20.

[0030] The limiting mechanism 4 also includes a limiting block 19 and a limiting plate 17. The limiting block 19 is detachably installed on the end of the connector away from the limiting seat 20 by bolts. The limiting plate 17 is installed on the end of the rotating shaft 15 near the mounting bracket 13 via a connecting rod. A straight stop is provided on the limiting plate 17. By using the hydraulic rod 18 to drive the connector to press down, the cable is fixed and clamped during the pressing down of the limiting seat 20. At the same time, the limiting block 19 presses down and cooperates with the limiting plate 17. After the pulley 16 rotates a certain angle, the limiting plate 17 will contact the limiting block 19 to lock and fix the limiting plate 17 and the pulley 16, preventing the pulley 16 from rotating.

[0031] This device is further configured such as Figures 1-3 As shown, a sliding groove 9 is provided inside the sleeve 2, and a screw 10 is rotatably installed inside the sliding groove 9. The front and rear ends of the sleeve 2 are respectively detachably installed with cover plate 2 6 and cover plate 1 5 by bolts.

[0032] A handle 7 is installed at the end of the screw 10 near the cover plate 5. A mounting plate 12 is mounted on the screw 10 via a sliding slide 11. A mounting bracket 13 is detachably mounted on the end of the mounting plate 12 away from the sliding slide 11 via bolts. By using the handle 7 to drive the screw 10 to rotate, the pulley assembly 3 can be moved telescopically, facilitating the auxiliary laying of multiple cables.

[0033] This device is further configured such as Figure 1 As shown, the fixed base 1 and the sleeve 2 are connected by a support rod 8 for auxiliary support. The bottom of the fixed base 1 is provided with threaded holes and reinforcing ribs.

[0034] Working principle: The fixed base 1 is fixed to the ground with bolts. The connecting frame 14 is removed and the cable is placed on the pulley 16. Then, the connecting frame 14 is fixed to the mounting frame 13 with bolts. During the cable laying process, the cable can be prevented from dragging on the ground, thereby reducing the wear of the cable protective sleeve. When the work is stopped, the hydraulic rod 18 is used to drive the limit seat 20 and the limit block 19 to press down, which limits the cable and the pulley 16 respectively. When laying multiple cables, the position of the pulley assembly 3 can be adjusted by rotating the handle 7, and multiple cables can be laid in one position.

[0035] The above description is only a preferred embodiment of the present utility model. For parts that do not require creative effort in circuit control, signal control and transmission, please refer to the prior art. However, the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A retractable high-voltage cable laying pulley device, comprising a fixed base (1), characterized in that, A sleeve (2) is installed on the fixed base (1), a sliding groove (9) is provided on the sleeve (2), a telescopic mechanism is provided on the sliding groove (9), and the pulley device also includes a pulley assembly (3), a limit mechanism (4) is provided on the pulley assembly (3) to limit the movement of the cable; The pulley assembly (3) includes a mounting bracket (13), one end of which is provided with a fixing groove. A connecting bracket (14) is detachably mounted on the outer wall of the end of the mounting bracket (13) away from the fixing groove by bolts. A pulley (16) is mounted on the connecting bracket (14) via a rotating shaft (15). The rotating shaft (15) and the pulley (16) are connected by a key.

2. The retractable high-voltage cable laying pulley device according to claim 1, characterized in that, The limiting mechanism (4) includes a hydraulic rod (18), which is mounted on the top of the mounting frame (13) via a bracket, and a U-shaped connector is installed at the output end of the hydraulic rod (18).

3. The retractable high-voltage cable laying pulley device according to claim 2, characterized in that, The limiting mechanism (4) also includes a limiting seat (20), which is detachably installed on one end of the connector near the pulley (16) by bolts. The limiting seat (20) is provided with an arc-shaped groove and a friction plate is provided in the groove.

4. The retractable high-voltage cable laying pulley device according to claim 3, characterized in that, The limiting mechanism (4) further includes a limiting block (19) and a limiting plate (17). The limiting block (19) is detachably installed on the end of the connector away from the limiting seat (20) by bolts. The limiting plate (17) is installed on the end of the rotating shaft (15) near the mounting bracket (13) by a connecting rod. A straight block is provided on the limiting plate (17).

5. The retractable high-voltage cable laying pulley device according to claim 1, characterized in that, The sleeve (2) is provided with a sliding groove (9), and a screw (10) is rotatably installed in the sliding groove (9). The front and rear ends of the sleeve (2) are respectively detachably installed with cover plate two (6) and cover plate one (5) by bolts.

6. The retractable high-voltage cable laying pulley device according to claim 5, characterized in that, A rotating handle (7) is installed at one end of the screw (10) near the cover plate (5). A mounting plate (12) is installed on the screw (10) via a translation slide (11). A mounting bracket (13) is detachably installed on the end of the mounting plate (12) away from the translation slide (11) via bolts.

7. The retractable high-voltage cable laying pulley device according to claim 1, characterized in that, The fixed base (1) and the sleeve (2) are connected by a support rod (8) for auxiliary support. The bottom of the fixed base (1) is provided with a threaded hole and a reinforcing rib.

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