Pulley connecting assembly for power transmission line erection

Abstract

The utility model discloses a pulley connecting assembly for erecting a power transmission line, which relates to the field of cable laying and comprises a connecting frame, two end parts of the connecting frame are rotatably connected with fixed pulleys, the middle position of the outer side of the connecting frame is fixedly connected with a fixing piece, one end of the connecting frame is provided with a connecting assembly, and the other end of the connecting frame is provided with a pulley. The connecting assembly comprises a fixing unit and a limiting unit. The fixing unit is connected with a side wall, and the limiting unit is used for limiting the length of the fixing unit; the limiting unit is located above the fixing piece, and the end, away from the side wall body, of the fixing unit is connected with the fixing piece. According to the steel cable type pulley assembly, the limiting unit is arranged, the unfolding length of the steel cable can be limited through the limiting unit, adaptive adjustment can be conducted according to the width of the groove, and the purpose that the application range of the steel cable type pulley assembly is wider is achieved.

Description

Technical Field

[0001] The utility model relates to the field of cable laying, in particular to a pulley connection assembly for erecting a power transmission line. Background Art

[0002] There are many types of cable laying, one of which is laying along the trench. When the trench is excavated, it will be excavated according to the surface conditions to avoid buildings or main roads to reduce the impact of later maintenance;

[0003] Therefore, in the prior art, cable trenches generally have bending conditions to varying degrees. When the cable is laid along the trench, the cable will rub against the bending portion of the trench, thereby generating friction, which makes cable laying difficult. Therefore, the pulley assembly is used in the cable laying process. The fixed pulley of the pulley assembly can provide guidance for the laying of the cable and avoid friction between the cable and the trench.

[0004] One type of pulley assembly in the prior art is a steel cable pulley assembly, that is, a steel cable is connected to a pulley frame. Since the steel cable can be folded and stored, it is convenient to carry. However, when the groove is narrow, the steel cable cannot be effectively unfolded when subjected to force. At this time, the pulley assembly cannot play an effective guiding and friction reducing role, and its applicability is not wide. Utility Model Content

[0005] The purpose of the utility model is to provide a pulley connection assembly for erecting a power transmission line in order to solve the problem raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pulley connection assembly for erecting a power transmission line, comprising a connection frame, both ends of the connection frame are rotatably connected to fixed pulleys, a fixing piece is fixedly connected to the middle position of the outer side of the connection frame, and a connection assembly is arranged at one end of the connection frame, and the connection assembly includes a fixing unit and a limiting unit;

[0007] The fixing unit is connected to the side wall, and the limiting unit is used to limit the length of the fixing unit;

[0008] The limiting unit is located above the fixing member, and one end of the fixing unit away from the side wall is connected to the fixing member.

[0009] As a further solution of the utility model: the fixing unit includes a steel cable and a fixing plate, the fixing plate is fixedly connected to the side wall through a long anchor rod, the fixing plate is connected to one end of the steel cable, and the other end of the steel cable is connected to one side of the fixing member.

[0010] As a further solution of the utility model: the limiting unit includes a long rod and a short rod fixedly connected to the upper part of the fixing member, and the long rod and the short rod are symmetrically arranged;

[0011] One end of the short rod is rotatably connected to a rotating rod, and the ends of the long rod and the rotating rod away from the fixing member are both formed with vertical rods, and ends of the two vertical rods close to each other are formed with connecting members.

[0012] As a further solution of the utility model: a through hole is opened at the center of the vertical rod and the connecting member.

[0013] As a further solution of the utility model: one end of the short rod is integrally formed with two fixing seats, a rotating seat is rotatably connected between the two fixing seats via a rotating shaft, and one end of the rotating seat is welded to one end of the rotating rod.

[0014] As a further solution of the utility model: a locking bolt is accommodated in the through hole, and a locking nut is threadedly connected to the other end of the locking bolt.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting a limit unit, the limit unit can limit the unfolded length of the steel cable, and can be adaptively adjusted according to the groove width, so as to achieve a wider application range of the steel cable pulley assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For the utility model Figure 1 A partial enlarged view of the middle part;

[0019] Figure 3 For the utility model Figure 1 A partial enlarged view of point B in the middle.

[0020] In the figure: 1, connecting frame; 2, fixed pulley; 3, fixing piece; 4, long rod; 5, short rod; 6, rotating rod; 7, steel cable; 8, fixing plate; 9, fixing seat; 10, rotating seat; 11, vertical rod; 12, connecting piece. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 to Figure 3 In an embodiment of the utility model, a pulley connection assembly for erecting a power transmission line includes a connection frame 1, both ends of the connection frame 1 are rotatably connected to fixed pulleys 2, a fixing member 3 is fixedly connected to the middle position of the outer side of the connection frame 1, and a connection assembly is provided at one end of the connection frame 1, and the connection assembly includes a fixing unit and a limiting unit;

[0023] The fixing unit is connected to the side wall, and the limiting unit is used to limit the length of the fixing unit;

[0024] The limiting unit is located above the fixing member 3 , and one end of the fixing unit away from the side wall is connected to the fixing member 3 .

[0025] In this embodiment: when the transmission line is laid along the excavated trench, the excavated trench will be excavated according to the surface conditions. The shape of the trench is not a straight state, and there will be multiple turns. Therefore, when the transmission line is laid, in order to avoid hard friction between the cable and the trench bend, which causes the cable to be pulled unsmoothly, an interactive component will be set at the bend of the trench, thereby reducing the friction when the cable moves;

[0026] First, anchor the fixing unit to the side wall of the trench, use a long anchor rod to form an effective connection force to prevent loosening, and then adjust the length of the fixing unit according to the width of the trench excavation. This can achieve the purpose of adjusting according to the trench width and has a wider applicability.

[0027] Please refer to Figure 1 The fixing unit includes a steel cable 7 and a fixing plate 8. The fixing plate 8 is fixedly connected to the side wall through a long anchor rod. The fixing plate 8 is connected to one end of the steel cable 7, and the other end of the steel cable 7 is connected to one side of the fixing member 3.

[0028] In this embodiment: first, the fixing plate 8 is fixed to the side wall by a long anchor rod, and the height of the fixing plate 8 is fixed at a suitable position. Then, when the cable is laid, one end of the cable is passed between the two connecting frames 1 and contacts the surface of the fixed pulley 2. When the cable is pulled, the cable pulls the fixed pulley 2 to drive the unrestricted part of the steel cable 7 to unfold, while the restricted part of the steel cable 7 cannot be stressed and remains loose.

[0029] Please refer to Figure 2and Figure 3 The limiting unit includes a long rod 4 and a short rod 5 fixedly connected to the top of the fixing member 3, and the long rod 4 and the short rod 5 are symmetrically arranged; one end of the short rod 5 is rotatably connected to a rotating rod 6, and the ends of the long rod 4 and the rotating rod 6 away from the fixing member 3 are both formed with vertical rods 11, and the ends of the two vertical rods 11 close to each other are formed with connecting members 12.

[0030] In this embodiment: according to the groove width, the length of the steel cable 7 that can be stretched and unfolded is limited by the limit unit, which is generally half of the groove width, which can effectively avoid the possibility of the cable contacting the groove wall;

[0031] Insert the two connecting pieces 12 into a metal ring of the steel cable 7. The distance between the metal ring and the fixing plate 8 is roughly half of the groove width. This part is the part that can be stretched and expanded, while the length between the metal ring and the fixing piece 3 is the limited length and cannot be stressed.

[0032] After the cable is laid, it is necessary to dismantle the devices one by one and cancel the limitation of the steel cable 7 by the limiting unit. After the limitation is lifted, the rotating rod 6 is pulled and the rotating rod 6 rotates, driving the vertical rod 11 and the connecting piece 12 connected thereto to separate from the corresponding metal ring, thereby completing the limitation of the steel cable 7.

[0033] Please refer to Figure 1 and Figure 3 A through hole is opened at the center of the vertical rod 11 and the connecting member 12, and a locking bolt is accommodated in the through hole. The other end of the locking bolt is threadedly connected with a locking nut.

[0034] In this embodiment: after the two connecting parts 12 limit the position of the steel cable 7, the bolt is inserted into the through hole and extended from the other end of the through hole. At this time, the locking nut and the locking bolt are used to perform the locking operation. At this time, the two connecting parts 12 cannot be separated from the corresponding metal rings, and the unfolded length of the steel cable 7 can be limited.

[0035] Please refer to Figure 2 One end of the short rod 5 is integrally formed with two fixing seats 9, and a rotating seat 10 is rotatably connected between the two fixing seats 9 through a rotating shaft, and one end of the rotating seat 10 is welded to one end of the rotating rod 6.

[0036] In this embodiment, when the rotating rod 6 is subjected to force, the rotating rod 6 drives the rotating seat 10 to rotate with the rotating shaft as the center, so that the rotating rod 6 drives the vertical rod 11 and the connecting member 12 to limit or release the metal ring of the steel cable 7.

[0037] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pulley connection assembly for erecting a power transmission line, comprising a connection frame (1), both ends of the connection frame (1) are rotatably connected to fixed pulleys (2), and a fixing member (3) is fixedly connected to the middle position of the outer side of the connection frame (1), characterized in that: A connecting assembly is provided at one end of the connecting frame (1), and the connecting assembly comprises a fixing unit and a limiting unit; The fixing unit is connected to the side wall, and the limiting unit is used to limit the length of the fixing unit; The limiting unit is located above the fixing member (3), and one end of the fixing unit away from the side wall is connected to the fixing member (3).

2. A pulley connection assembly for erecting a power transmission line according to claim 1, characterized in that: The fixing unit comprises a steel cable (7) and a fixing plate (8); the fixing plate (8) is fixedly connected to the side wall via a long anchor rod; the fixing plate (8) is connected to one end of the steel cable (7); and the other end of the steel cable (7) is connected to one side of the fixing member (3).

3. A pulley connection assembly for erecting a power transmission line according to claim 2, characterized in that: The limiting unit comprises a long rod (4) and a short rod (5) fixedly connected to the top of the fixing member (3), and the long rod (4) and the short rod (5) are symmetrically arranged; One end of the short rod (5) is rotatably connected to a rotating rod (6); the ends of the long rod (4) and the rotating rod (6) away from the fixing member (3) are both formed with vertical rods (11); and ends of the two vertical rods (11) close to each other are formed with connecting members (12).

4. A pulley connection assembly for erecting a power transmission line according to claim 3, characterized in that: Through holes are provided at the centers of the vertical rod (11) and the connecting member (12).

5. A pulley connection assembly for erecting a power transmission line according to claim 4, characterized in that: One end of the short rod (5) is integrally formed with two fixed seats (9), a rotating seat (10) is rotatably connected between the two fixed seats (9) via a rotating shaft, and one end of the rotating seat (10) is welded to one end of the rotating rod (6).

6. A pulley connection assembly for erecting a power transmission line according to claim 5, characterized in that: A locking bolt is accommodated in the through hole, and a locking nut is threadedly connected to the other end of the locking bolt.

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