Jumper-proof stringing construction pulley block

Abstract

The utility model discloses an anti-jumper stringing construction pulley block, which belongs to the technical field of stringing construction and comprises a stringing stand column, and a stringing pulley assembly is fixed on the bottom surface of a stringing top beam plate and positioned on one side of the stringing stand column. The stringing pulley assembly comprises a stringing hoisting plate which is directly and fixedly connected with the bottom surface of the stringing top beam plate, a mounting cavity which is formed in the lower part of the stringing hoisting plate, and a first pulley and a second pulley which are symmetrically and rotationally mounted in the mounting cavity up and down, and a cable is arranged between the first pulley and the second pulley; an elastic pressing assembly used for adjusting the height stroke position of the first pulley is arranged above the first pulley and located in the mounting cavity, and an anti-jumper H insertion plate is inserted in the position, between the first pulley and the second pulley, of one side of the stringing hoisting plate. According to the utility model, the cable can be effectively prevented from jumping out of the pulley track, so that the safety in the operation process and the stability of cable laying are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of stringing construction, especially a wire-jumping-preventing stringing construction pulley block. BACKGROUND

[0002] With the development of economy and city, the construction and reconstruction projects of power cable are more and more, in order to ensure the safe and efficient cable construction and the safety and stability of power grid, the optical cable pulley is generally used in cable laying, so that the construction difficulty and intensity can be reduced. When the optical cable tension is laid, the critical tower position optical cable jump groove is caused by instantaneous vibration, fault and other reasons, light causes the outer layer wire part damage of optical cable, heavy occurs the optical cable and cannot continue to drag, causes the trouble of processing jump groove, delays the construction period, even completely damages the optical fiber unit of optical cable.

[0003] In the process of power line laying, pulley block is widely used as an important auxiliary tool. However, the existing pulley block has several shortcomings, which limits its efficiency and application range, such as: usually only the support and guide function of cable is considered, and the design of preventing cable from jumping off the pulley is ignored. For example, in some construction sites, due to complex terrain or improper operation, the cable is easy to be affected by external force and jump out of the pulley track when moving at high speed. Once the cable jumps out of the pulley, it may be wound on other equipment or structure, causing serious safety accidents. Each time the jump occurs, it needs to stop work for processing, and the cable needs to be rearranged, which greatly reduces the construction efficiency. For example, in the process of high-voltage transmission line laying, if the cable jumps frequently, not only additional manpower is needed to monitor and adjust, but also the whole project may be delayed; in addition, most of the existing pulley blocks are designed for cables within a certain diameter range, and lack of flexibility. The specifications of cables in different engineering projects are quite different, and the existing solutions often require replacing the corresponding pulley block or manually adjusting the pulley spacing according to the size of the cable. In order to meet the needs of different cables, the construction unit has to store pulley blocks of multiple specifications, increasing the cost of equipment procurement and storage. Whenever a cable of different diameter is encountered, time is spent on equipment replacement or adjustment, which undoubtedly delays the progress of the project. For example, in power grid projects, if different specifications of cables cannot be quickly adapted, it will directly affect the time of power recovery. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a wire-jumping-preventing stringing construction pulley block to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of anti-jumping wire rack wire construction pulley block, including wire rack stand, the top of the wire rack stand is welded with wire rack roof beam plate, the bottom surface of the wire rack roof beam plate and located one side of wire rack stand is fixed with wire rack pulley assembly, the wire rack pulley assembly includes wire rack hoisting plate directly fixedly connected with the bottom surface of wire rack roof beam plate, installation cavity arranged in the lower part of wire rack hoisting plate and first pulley and second pulley symmetrically rotatingly installed in installation cavity, cable is arranged between the first pulley and second pulley, so that the cable is erected and moves between the first pulley and second pulley, the first pulley is above and located in installation cavity inside and is provided with the elastic downward component for adjusting the height stroke position of first pulley, the side of the wire rack hoisting plate and located between first pulley and second pulley is inserted with anti-jumping wire H plugboard.

[0006] Preferably, the top surface of the wire rack hoisting plate is welded with a connecting protrusion, and the top surface of the connecting protrusion is welded on the bottom surface of the wire rack roof beam plate.

[0007] Preferably, a first pin shaft is inserted into the center hole of the first pulley, and a second pin shaft is inserted into the center hole of the second pulley, and the first pin shaft and the second pin shaft are both rotatingly installed on the inner walls of the two sides of the wire rack hoisting plate, so that the first pulley and the second pulley rotate in the installation cavity.

[0008] Preferably, a fixed pin is fixed in each of the first pin shaft and the second pin shaft.

[0009] Preferably, a stroke sliding groove is longitudinally formed in the outer wall of each side of the wire rack hoisting plate, and the first pin shaft on each side of the first pulley longitudinally moves in the stroke sliding groove.

[0010] Preferably, the elastic downward component includes a hollow sleeve fixed on the inner top wall of the installation cavity, a fixed rod inserted into the hollow sleeve and located below, and an elastic downward plate fixed on the bottom end of the fixed rod. A support plate is welded on the top surface of the elastic downward plate at the middle position, and the bottom end of the fixed rod is welded on the top surface of the support plate at the middle position.

[0011] Preferably, an internally threaded cap is sleeved on the periphery of the fixed rod, and an externally threaded sleeve integrally connected with the internally threaded cap is connected with the bottom end of the hollow sleeve.

[0012] Preferably, one end of the fixed rod located in the hollow sleeve is integrally connected with a limiting disc, a spring piece is arranged in the inner cavity of the hollow sleeve, the bottom end of the spring piece elastically abuts on the top surface of the limiting disc downward, and the top end of the spring piece elastically abuts on the inner top wall of the hollow sleeve upward.

[0013] Preferably, the bottom surface of the elastic pressing plate downwardly abuts on the top surface of the first pulley, and under the elastic extrusion force of the spring member, the elastic pressing plate presses downwardly the first pulley, and when the diameters of the cables are different, the first pin shaft of the first pulley can be adjusted in the longitudinal lifting position in the stroke sliding groove, so that the height position of the first pulley is adjusted to meet the cables of different specifications and diameters.

[0014] Preferably, a wire threading gap for mounting the anti-jumping cable H plug-in plate is arranged at the lower part of one side of the wire stringing hoisting plate between the first pulley and the second pulley, and the outer wall of the anti-jumping cable H plug-in plate is provided with a threaded hole, so that the anti-jumping cable H plug-in plate is fixedly connected with the wire stringing hoisting plates on both sides of the wire threading gap through bolts.

[0015] Compared with the prior art, the technical effects and advantages of the utility model are:

[0016] The anti-jumping cable stringing construction pulley block can effectively prevent the cables from jumping out of the pulley track by arranging the cables between the first pulley and the second pulley and inserting the anti-jumping cable H plug-in plate therebetween, thereby greatly improving the safety in the operation process and the stability of cable laying.

[0017] The design of the elastic pressing assembly allows the height position of the first pulley to be adjusted according to the different diameters of the cables. This means that the device can adapt to cables of different specifications and diameters, increasing the versatility and flexibility of the equipment and reducing the need to replace or adjust the equipment.

[0018] The cables can move smoothly between the first pulley and the second pulley, which not only reduces the frictional resistance between the cables and the pulleys, but also improves the work efficiency of the entire laying process, helping to speed up the construction progress. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the wire stringing pulley assembly of the utility model;

[0022] Figure 3 It is a split state structural schematic diagram of the anti-jumping cable H plug-in plate of the utility model;

[0023] Figure 4 It is the fixed pin's split state structure schematic view of the utility model;

[0024] Figure 5 It is the spring piece's split state structure schematic view of the utility model.

[0025] Explanation of reference signs:

[0026] In the drawing: 1, pole; 2, top beam plate; 3, hoisting plate; 4, pulley assembly; 5, first pulley; 6, second pulley; 7, connecting convex head; 8, installation cavity; 9, anti-skip H plugboard; 10, first pin shaft; 11, stroke sliding groove; 12, elastic lower pressing plate; 13, second pin shaft; 14, threading gap; 15, threaded hole; 16, fixed pin; 17, support plate; 18, fixed rod; 19, internally threaded cover; 20, limiting disc; 21, spring piece; 22, hollow sleeve; 23, externally threaded sleeve. DETAILED DESCRIPTION

[0027] In the following description, numerous specific details are given to provide a thorough understanding of the utility model. However, it will be apparent to one skilled in the art that the utility model can be practiced without one or more of these specific details. In other instances, well-known techniques have not been described in detail in order to avoid unnecessarily obscuring the utility model.

[0028] Unless the direction defined separately, the directions such as up, down, left, right, front, back, inside and outside involved in the present utility model are based on the directions such as up, down, left, right, front, back, inside and outside in the drawing shown by the utility model, which are explained here.

[0029] The embodiment provides a kind of anti-skip wire stringing construction pulley group as shown in Figures 1 to 5 The embodiment provides a kind of anti-skip wire stringing construction pulley group as shown in including pole 1, the top of pole 1 is welded with top beam plate 2, the bottom surface of top beam plate 2 and the side of pole 1 are fixed with pulley assembly 4, pulley assembly 4 includes hoisting plate 3 directly fixedly connected with the bottom surface of top beam plate 2, installation cavity 8 in the lower part of hoisting plate 3 and first pulley 5 and second pulley 6 are symmetrically installed in installation cavity 8, first pulley 5 and second pulley 6 are provided with cable, so that cable is erected and moves between first pulley 5 and second pulley 6, first pulley 5 is provided with the elastic lower pressing assembly for adjusting the height stroke position of first pulley 5 above and in installation cavity 8, anti-skip H plugboard 9 is inserted in the side of hoisting plate 3 and between first pulley 5 and second pulley 6.

[0030] In this embodiment, a connecting protrusion 7 is welded to the top surface of the overhead line hoisting plate 3, and the top surface of the connecting protrusion 7 is welded to the bottom surface of the overhead line top beam plate 2.

[0031] In this embodiment, a first pin 10 is inserted into the center hole of the first pulley 5, and a second pin 13 is inserted into the center hole of the second pulley 6. The first pin 10 and the second pin 13 are rotatably mounted on the inner walls of both sides of the overhead line hoisting plate 3, so that the first pulley 5 and the second pulley 6 rotate in the mounting cavity 8.

[0032] In this embodiment, a fixing pin 16 is fixed in both the first pin 10 and the second pin 13. The outer walls on both sides of the overhead line hoisting plate 3 are longitudinally provided with travel grooves 11, and the first pins 10 on both sides of the first pulley 5 move longitudinally in the travel grooves 11.

[0033] In this embodiment, the elastic pressing assembly includes a hollow sleeve 22 fixed to the top wall of the mounting cavity 8, a fixing rod 18 inserted into the hollow sleeve 22 and located below it, and an elastic pressing plate 12 fixed to the bottom end of the fixing rod 18. A support plate 17 is welded to the middle position of the top surface of the elastic pressing plate 12, the bottom end of the fixing rod 18 is welded to the middle position of the top surface of the support plate 17, an internal threaded cap 19 is sleeved around the fixing rod 18, and an external threaded sleeve 23 that is threadedly connected to the internal threaded cap 19 is integrally connected to the bottom end of the hollow sleeve 22.

[0034] In this embodiment, one end of the fixing rod 18 located in the hollow sleeve 22 is integrally connected to the limiting plate 20. A spring 21 is provided in the inner cavity of the hollow sleeve 22. The bottom end of the spring 21 elastically abuts against the top surface of the limiting plate 20, and the top end of the spring 21 elastically abuts against the inner top wall of the hollow sleeve 22. The bottom surface of the elastic pressure plate 12 abuts against the top surface of the first pulley 5. Under the elastic pressing force of the spring 21, the elastic pressure plate 12 presses down on the first pulley 5. When the cable diameter is different, the first pin 10 of the first pulley 5 can be adjusted longitudinally in the stroke groove 11. This adjusts the height position of the first pulley 5 to meet the needs of cables with different diameters.

[0035] In this embodiment, a wire-passing notch 14 for installing the anti-skid wire H-insert plate 9 is provided on the lower part of one side of the overhead line hoisting plate 3 and between the first pulley 5 and the second pulley 6. The outer wall of the anti-skid wire H-insert plate 9 is provided with threaded holes 15, so that the anti-skid wire H-insert plate 9 is fixedly connected to the overhead line hoisting plate 3 on both sides of the wire-passing notch 14 by bolts.

[0036] Working principle:

[0037] The anti-skip wire frame pulley assembly, before starting to use, is fixed with a wire hoisting plate 3 below the wire stringing top beam plate 2 through the connecting lug 7, the plate is internally provided with the first pulley 5 and the second pulley 6 which are symmetrically up and down, they are located in the installation cavity 8 and realize rotation through the first pin shaft 10 and the second pin shaft 13.

[0038] In order to adapt to cables of different diameters, the position of the first pulley 5 is changed by adjusting the elastic downward pressing assembly. This assembly includes the hollow sleeve 22, the fixed rod 18 and the elastic downward pressing plate 12. When adjustment is needed, the spring piece 21 provides elastic force, so that the fixed rod 18 and the elastic downward pressing plate 12 connected therewith can move longitudinally according to the different diameters of the cable, so as to maintain appropriate pressure and ensure stable operation of the cable. The cable to be laid is introduced between the tracks formed by the first pulley 5 and the second pulley 6. The cable can roll along the two pulleys, reducing frictional resistance and improving work efficiency. At the same time, the anti-skip wire H insertion plate 9 is inserted between the first pulley 5 and the second pulley 6 to prevent the cable from jumping out of the pulley track.

[0039] During the cable laying process, as the cable moves, it will roll on the first pulley 5 and the second pulley 6. Due to the action of the elastic downward pressing assembly, even if the diameter of the cable changes, the cable can still pass through the pulley assembly smoothly, avoiding the inconvenience or safety hazards caused by the mismatch of the cable diameter.

[0040] It should be noted that, in the present text, relational terms such as one and two and the like are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment. Without more limitations. The statement "comprising a limited element" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A jump-preventing pole line construction pulley block comprising a pole (1) for stringing, characterized in that: The top end of the pole (1) is welded with a top beam plate (2), the bottom surface of the top beam plate (2) is fixed with a wire hanging pulley assembly (4) on one side of the pole (1), the wire hanging pulley assembly (4) comprises a wire hanging plate (3) fixedly connected with the bottom surface of the top beam plate (2), a mounting cavity (8) arranged in the lower part of the wire hanging plate (3), and a first pulley (5) and a second pulley (6) symmetrically arranged in the mounting cavity (8), a cable is arranged between the first pulley (5) and the second pulley (6), so that the cable is arranged and moved between the first pulley (5) and the second pulley (6), an elastic pressing assembly is arranged above the first pulley (5) and inside the mounting cavity (8) for adjusting the height stroke position of the first pulley (5), and an anti-jumping wire H plug-in board (9) is inserted into one side of the wire hanging plate (3) and between the first pulley (5) and the second pulley (6).

2. The anti-jumping wire rack wire construction pulley block according to claim 1, characterized in that: The top surface of the connecting lug (7) is welded to the bottom surface of the top beam plate (2).

3. A line construction pulley block according to claim 2, characterised in that: The first pin shaft (10) is inserted into the center hole of the first pulley (5), the second pin shaft (13) is inserted into the center hole of the second pulley (6), and the first pin shaft (10) and the second pin shaft (13) are rotatably arranged on the inner walls of the two sides of the wire hanging plate (3), so that the first pulley (5) and the second pulley (6) are rotatable in the mounting cavity (8).

4. A line construction pulley block according to claim 3, characterised in that: The fixed pin (16) is fixed in the first pin shaft (10) and the second pin shaft (13).

5. A jump-preventing wire rack construction pulley block according to claim 4, characterized in that: The stroke sliding groove (11) is longitudinally arranged on the outer walls of the two sides of the wire hanging plate (3), and the first pin shaft (10) on the two sides of the first pulley (5) moves longitudinally in the stroke sliding groove (11).

6. A line construction pulley block according to claim 5, characterised in that: The elastic pressing assembly comprises a hollow sleeve (22) fixed to the inner top wall of the mounting cavity (8), a fixed rod (18) inserted into the hollow sleeve (22) and located below, and an elastic pressing plate (12) fixed to the bottom end of the fixed rod (18).

7. A line construction pulley block according to claim 6, characterised in that: The inner threaded cover (19) is sleeved on the circumferential side of the fixed rod (18), and the outer threaded sleeve (23) is integrally connected with the inner threaded cover (19) at the bottom end of the hollow sleeve (22).

8. A line construction pulley block according to claim 7, characterised in that: One end of the fixed rod (18) located in the hollow sleeve (22) is integrally connected with a limiting disc (20), the spring member (21) is arranged in the inner cavity of the hollow sleeve (22), the bottom end of the spring member (21) is elastically abutted to the top surface of the limiting disc (20), and the top end of the spring member (21) is elastically abutted to the inner top wall of the hollow sleeve (22).

9. A line construction pulley block according to claim 8, characterised in that: The bottom surface of the elastic pressing plate (12) is downwardly abutted to the top surface of the first pulley (5), and the elastic pressing plate (12) presses downwardly the first pulley (5) under the elastic extrusion force of the spring member (21).

10. A jump-preventing wire rack construction pulley block according to claim 9, characterized in that: The wire hanging plate (3) is provided with a wire threading gap (14) for installing the anti-springing wire H plug-in plate (9) at the lower part of one side between the first pulley (5) and the second pulley (6), and the outer wall of the anti-springing wire H plug-in plate (9) is provided with a threaded hole (15), so that the anti-springing wire H plug-in plate (9) is fixedly connected with the wire hanging plate (3) on both sides of the wire threading gap (14) through bolts.

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