A corner pulley for cable laying

Abstract

The utility model relates to the technical field of cable laying equipment, and discloses a corner pulley for cable laying, comprising a base, a top side outer ring of the chassis is provided with a circumferential scale, the top of the chassis is rotatably connected with an angle shell frame, the bottom side of the angle shell frame is fixedly installed with an indicator needle, the inner thread of the angle shell frame is located in the threaded hole and a bolt rod is inserted, the upper and lower sides of the angle shell frame are provided with a cross limit groove, and the interior of the angle shell frame is provided with an anti-slip component; the angle of the angle shell frame can be adjusted by twisting the bolt rod, and the cable angle can be intuitively adjusted by the position indicated by the indicator needle at the circumferential scale, and then the two symmetrical groups of pulleys are always clamped on the outside of the cable through the telescopic rods and compression springs on both sides, so it can be suitable for cables of different thicknesses, and at the same time, the pulleys can be driven to quickly clamp the cable when the cable shakes, thereby avoiding the cable bouncing and slipping.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying equipment, in particular to a corner pulley for cable laying. Background Art

[0002] With the continuous development of society, the application of cables is becoming more and more extensive. When laying cables, due to the extensive urban roads, it is necessary to change the direction of the cables during laying, and then a corner pulley is needed. The corner pulley can change the direction of the cable at the corner, and reduce the friction between the cable and the buried pipe, which facilitates the laying of cables.

[0003] The existing corner pulley generally includes a support frame and multiple guide pulleys. When the cable is redirected, the cable can easily bounce and slip due to the large changes in the cable laying speed. In addition, since the angle of the guide pulley is fixed, the cable direction cannot be adjusted according to the actual situation. Therefore, further improvements can be made. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides the following technical solutions: a corner pulley for cable laying, comprising a base, a chassis is fixedly installed on the top of the base, a circular scale is provided on the top outer ring of the chassis, an angle shell frame is rotatably connected to the top of the chassis, an indicator needle is fixedly installed on the bottom side of the angle shell frame, a threaded hole is provided at the corner of the angle shell frame, a bolt rod is inserted into the internal thread of the threaded hole of the angle shell frame, cross limit grooves are provided on the upper and lower sides of the angle shell frame, and an anti-slip assembly is arranged inside the angle shell frame.

[0005] As an optimization, the circular scale is opened in a circle around the chassis, and the indicator needle abuts against the top side of the chassis. By pointing the tip of the indicator needle at the circular scale, the angle of the corner pulley can be intuitively seen.

[0006] As an optimization, a threaded groove is opened inside the chassis, and the bottom end of the bolt rod is threaded into the threaded groove. By turning the bolt rod counterclockwise, the angle frame can be loosened. At this time, the angle frame can be rotated to change its cable rotation angle, and then the angle frame can be tightened and fixed in place by turning the bolt rod clockwise.

[0007] As an optimization, the anti-slip assembly includes a slider slidably connected to the corner frame and located in a cross limit groove, limit blocks are fixedly installed on both sides of the slider, a pulley is rotatably connected between the sliders on the upper and lower sides, and telescopic rods are fixedly installed on both side walls of the cross limit groove, and a compression spring is provided on the outer side of the telescopic rod.

[0008] As an optimization, the slider is slidably connected in the longitudinal slot of the cross limit slot, and the limit block is slidably connected in the transverse slot of the cross limit slot. The slider and the limit block are limited by sliding along the transverse and longitudinal slots of the cross limit slot.

[0009] As an optimization, the pulleys are symmetrically arranged in two groups and are located inside the angle frame. The friction is reduced by rolling the pulleys on both sides to facilitate the turning and laying of the cable.

[0010] As an optimization, one end of the telescopic rod is fixedly installed on the slider, and the compression spring is fixedly installed between the slider and the base of the telescopic rod. The elastic force of the telescopic rods and the compression springs on the upper and lower sides will make the pulleys on both sides always clamped on the outside of the cable, thereby preventing the cable from bouncing and slipping, and can be suitable for cables of different thicknesses.

[0011] The beneficial effects of the utility model are:

[0012] The cable laying angle pulley can adjust the angle of the angle frame by turning the bolt rod, and the cable angle can be intuitively adjusted through the position indicated by the indicator needle on the circular scale. The telescopic rods and compression springs on both sides make the two symmetrical sets of pulleys always clamped on the outside of the cable, so it can be suitable for cables of different thicknesses. At the same time, when the cable shakes, the pulley will be driven to quickly clamp the cable, thereby avoiding cable bouncing and slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the corner shell structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the anti-slip assembly of the utility model;

[0016] Figure 4 It is a three-dimensional schematic diagram of the anti-slip component structure of the utility model.

[0017] In the figure: 1. base; 2. chassis; 3. circular scale; 4. angle frame; 5. indicator needle; 6. threaded hole; 7. bolt rod; 8. cross limit groove; 9. anti-slip assembly; 10. slider; 11. limit block; 12. pulley; 13. telescopic rod; 14. compression spring. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-2 A cable laying angle pulley comprises a base 1, a chassis 2 is fixedly mounted on the top of the base 1, a circumferential scale 3 is provided on the top outer ring of the chassis 2, the circumferential scale 3 is provided in a circle around the chassis 2, an angle frame 4 is rotatably connected to the top of the chassis 2, an indicator needle 5 is fixedly mounted on the bottom side of the angle frame 4, the indicator needle 5 abuts against the top side of the chassis 2, and the angle of the angle pulley can be intuitively seen by pointing the indicator needle 5 at the circumferential scale 3;

[0020] See also Figure 1-2 A threaded hole 6 is provided at the corner of the corner frame 4, and a bolt rod 7 is inserted into the internal thread of the threaded hole 6 of the corner frame 4. A threaded groove is provided inside the chassis 2, and the bottom end of the bolt rod 7 is threadedly connected to the threaded groove. The corner frame 4 can be loosened by turning the bolt rod 7 counterclockwise. At this time, the corner frame 4 can be rotated to change its cable rotation angle, and the corner frame 4 can be tightened and fixed by turning the bolt rod 7 clockwise.

[0021] See also Figure 3-4 , a cross limit groove 8 is provided on the upper and lower sides of the corner shell frame 4, and an anti-slip assembly 9 is arranged inside the corner shell frame 4, and the anti-slip assembly 9 includes a slider 10 slidably connected to the corner shell frame 4 located in the cross limit groove 8, the slider 10 is slidably connected in the longitudinal slide groove of the cross limit groove 8, and a limit block 11 is fixedly installed on both sides of the slider 10, and the limit block 11 is slidably connected in the transverse slide groove of the cross limit groove 8, and the slider 10 and the limit block 11 slide along the transverse and longitudinal slide grooves of the cross limit groove 8, which will be limited;

[0022] A pulley 12 is rotatably connected between the upper and lower sliders 10. Two groups of pulleys 12 are symmetrically arranged and located inside the angle frame 4. The pulleys 12 on both sides roll to reduce friction and facilitate the turning and laying of the cable; telescopic rods 13 are fixedly installed on both side walls of the cross limit groove 8, one end of the telescopic rod 13 is fixedly installed on the slider 10, and a compression spring 14 is sleeved on the outer side of the telescopic rod 13. The compression spring 14 is fixedly installed between the slider 10 and the base of the telescopic rod 13. The elastic force of the upper and lower telescopic rods 13 and the compression spring 14 will make the pulleys 12 on both sides always clamped on the outside of the cable, thereby preventing the cable from bouncing and slipping, and can be suitable for cables of different thicknesses.

[0023] When using, refer to Figure 1-4 First, install the base 1 at the cable corner, and then pass the cable through the angle frame 4. At this time, the cable is located between the two sets of pulleys 12. The pulleys 12 on both sides will be stretched apart by the cable's own diameter, and then the sliders 10 on the top of the pulleys 12 on both sides will be separated from each other, so the compression spring 14 will be compressed. Under the reaction of its elastic force, the pulleys 12 on both sides will be clamped on the outside of the cable, so that it can be used for cables of different thicknesses.

[0024] At the same time, by twisting the bolt rod 7 counterclockwise, the angle frame 4 will no longer be fixed, and the angle of the angle frame 4 can be adjusted at this time. By pointing the tip of the indicator needle 5 at the circular scale 3, the cable turning angle can be intuitively adjusted. Later, when laying the cable, due to the fast cable laying speed, the cable will shake between the pulleys 12 on both sides, and then drive the pulleys 12 on both sides to separate. Under the action of the telescopic rod 13 and the compression spring 14, the pulleys 12 on both sides will be quickly driven to clamp the cable, thereby preventing the cable from bouncing and slipping.

[0025] To sum up, the angle pulley for cable laying can adjust the angle of the angle frame 4 by turning the bolt rod 7, and the cable angle can be intuitively adjusted through the position indicated by the indicator needle 5 at the circular scale 3. The telescopic rod 13 and the compression spring 14 on both sides will make the two symmetrical sets of pulleys 12 always clamped on the outside of the cable, so it can be suitable for cables of different thicknesses. At the same time, when the cable shakes, it will drive the pulley 12 to quickly clamp the cable, thereby avoiding the cable bouncing and slipping.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The standard parts used in the utility model can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0028] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A corner pulley for cable laying, comprising a base (1), characterized in that: A chassis (2) is fixedly mounted on the top of the base (1); a circumferential scale (3) is provided on the outer ring of the top side of the chassis (2); an angle frame (4) is rotatably connected to the top of the chassis (2); an indicator needle (5) is fixedly mounted on the bottom side of the angle frame (4); a threaded hole (6) is provided at the corner of the angle frame (4); a bolt rod (7) is inserted into the internal thread of the threaded hole (6) of the angle frame (4); a cross limiting groove (8) is provided on the upper and lower sides of the angle frame (4); and an anti-slip assembly (9) is provided inside the angle frame (4).

2. A cable laying corner pulley according to claim 1, characterized in that: The circumferential scale (3) is opened in a circumferential manner around the bottom plate (2), and the indicator needle (5) abuts against the top side of the bottom plate (2).

3. The cable laying corner pulley according to claim 1, characterized in that: A thread groove is provided inside the chassis (2), and the bottom end of the bolt rod (7) is threadedly connected into the thread groove.

4. A cable laying corner pulley according to claim 1, characterized in that: The anti-slip assembly (9) comprises a slider (10) slidably connected to the corner frame (4) and located in the cross limit groove (8), limit blocks (11) are fixedly installed on both sides of the slider (10), a pulley (12) is rotatably connected between the sliders (10) on the upper and lower sides, and telescopic rods (13) are fixedly installed on both side walls of the cross limit groove (8), and a compression spring (14) is sleeved on the outer side of the telescopic rod (13).

5. A cable laying corner pulley according to claim 4, characterized in that: The sliding block (10) is slidably connected in the longitudinal sliding groove of the cross limiting groove (8), and the limiting block (11) is slidably connected in the transverse sliding groove of the cross limiting groove (8).

6. A cable laying corner pulley according to claim 4, characterized in that: The pulleys (12) are symmetrically arranged in two groups and are located inside the angle frame (4).

7. A cable laying corner pulley according to claim 4, characterized in that: One end of the telescopic rod (13) is fixedly mounted on the slider (10), and the compression spring (14) is fixedly mounted between the slider (10) and the base of the telescopic rod (13).

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