A cable snow prevention device and its working method

Abstract

The present invention relates to a cable snow prevention device, which includes an annular sheath sleeve. Two rotating areas are oppositely arranged on the inner circle of the sheath sleeve. Two groove members are oppositely arranged on the outer circle of the sheath sleeve. The two groove members respectively correspond to the rotating areas at the same end side for collecting snow, and the centers of gravity of the two groove members are centrosymmetrically arranged about the axis of the sheath sleeve. The present invention can rotate around the cable axis under the conditions of unbalanced accumulation of snow or wind force, etc. Under the action of gravity, the inside of the sheath sleeve collides with the cable, and the generated vibration shakes off the snow in the groove members. At the same time, the vibration will also spread along the cable, causing the states of other devices to change, forming a chain reaction, so as to achieve the purpose of quickly removing snow.

Description

Technical Field

[0001] The present invention relates to a cable anti - snow accumulation device and its working method, belonging to the technical field of cable supporting tools. Background Art

[0002] For cables used in power grid construction, especially overhead cables, the demand is extremely large. In some areas with harsh environments, especially in cold winters, snow is likely to accumulate on the surface of transmission cables and even freeze, increasing the weight of the cables, easily crushing the cables, and posing potential safety hazards during use.

[0003] Currently, the principles of cable anti - snow accumulation technology can be roughly divided into four categories. The first is the special - shaped cable. By means of adding an outer shell or the like, the cross - sectional shape of the cable is changed so that a sharp angle or an equilateral triangle is presented above it, making it difficult for snow to accumulate on the cable surface. The drawback of this method is that it is difficult to install and has a relatively high economic cost. The second method is heating. Electric energy is used to heat the cable surface to melt the accumulated snow with heat. The disadvantages of this method are: there is power consumption, it is difficult to install, the economic cost is high, and it is not suitable for large - scale promotion. The third category is cable oscillation. The cable is made to oscillate by manual, motor control, spring vibration, etc. to shake off the accumulated snow. The disadvantage of this method is the high economic cost. The fourth method is to brush off the accumulated snow. Using the principle of electromagnets or external devices to brush the accumulated snow on the cable back and forth. The disadvantages of this method are high economic cost, difficult installation and debugging, power consumption, and it is not suitable for large - area promotion. Therefore, there is an urgent need for a cable anti - snow accumulation device with simple installation, simple structure, and low economic cost. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a cable anti - snow accumulation device and its working method, which solve the problems of high economic cost, difficult installation and debugging, power consumption, and unsuitability for large - area promotion of existing cable snow - removing devices.

[0005] To solve the above - mentioned technical problem, the technical solution of the present invention is: a cable anti - snow accumulation device, including an annular sheath sleeve. Two rotating areas are oppositely arranged on the inner circle of the sheath sleeve. Two groove members are oppositely arranged on the outer circle of the sheath sleeve. The two groove members respectively correspond to the rotating areas at the same end side for collecting snow, and the centers of gravity of the two groove members are centrosymmetric about the axis of the sheath sleeve.

[0006] Preferably, the inner cavity of the sheath sleeve is hollow and filled with movable objects, and the movable objects are always located at the inner bottom end position of the sheath sleeve.

[0007] Preferably, the volumes of the two groove members gradually increase from one end to the other end along the direction perpendicular to the cable, and the shapes of the two groove members are centrosymmetric about the axis of the sheath sleeve.

[0008] Preferably, the shape of the sheath sleeve consists of semi-circular segments at both ends and a straight segment connecting the two semi-circular segments.

[0009] Preferably, windshields are fixedly provided on the outer sides of the groove members.

[0010] Preferably, two rods passing through the center line connecting the centers of the two rotation regions are fixedly provided opposite to each other on the outer circle of the sheath sleeve. Adjusting tubes for inserting the end-side rods are fixedly provided in the middle of the outer groove bottoms of the groove members. Elastic members are connected between the inner ends of the rods and the adjusting tubes.

[0011] Preferably, V-shaped limiting members are symmetrically arranged on the left and right sides of the middle part of the sheath sleeve. The V-shaped tips of the limiting members face inward, and the side edges on the upper and lower inner sides of the V-shaped tips are all arc-shaped for assembling on the left and right sides of the other semi-circular vacant positions in the same-end-side rotation region. One end of each limiting member is hinged to the sheath sleeve, and the other end is connected to the adjusting tube on the same end side through a pull rope. Counterweight blocks are fixedly provided on the outer sides of the ends of the limiting members where the pull ropes are connected.

[0012] Preferably, limiting rings are symmetrically fixedly provided on the left and right sides of the rod on the pull rope end side of the outer circle of the sheath sleeve. Rope-passing holes for passing the same-side pull ropes are provided on the limiting rings.

[0013] Preferably, a plurality of protrusions for contacting the cable are uniformly distributed along the inner circle of the sheath sleeve and the arc-shaped side edges along their trajectories.

[0014] A working method of a cable snow prevention device is carried out according to the following steps: The two rotation regions of the device are distributed vertically. The upper rotation region is for the cable to pass through. In the case of unbalanced accumulation of snow or wind force on the upper groove member, the original state is difficult to maintain, and the device will rotate around the cable axis. When it rotates to 180 degrees, under the action of gravity, the device will fall downward, causing the inside of the sheath sleeve to collide with the cable, and the generated vibration will shake off the snow in the groove member. At the same time, the vibration will also spread along the cable, causing the states of other devices to change, forming a chain reaction to achieve rapid snow removal.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The two rotation regions of the device are distributed vertically. The upper rotation region is for the cable to pass through. In the case of unbalanced accumulation of snow or wind force on the upper groove member, the original state is difficult to maintain, and the device will rotate around the cable axis. When it rotates to 180 degrees, under the action of gravity, the device will fall downward, causing the inside of the sheath sleeve to collide with the cable, and the generated vibration will shake off the snow in the groove member. At the same time, the vibration will also spread along the cable, causing the states of other devices to change, forming a chain reaction to achieve the purpose of rapid snow removal, and the structure is simple, the economic cost is low, and it can be applied to large areas.

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0018] Figure 2 It is a cross-sectional view of the internal structure of the present invention;

[0019] Figure 3 is Figure 2 an enlarged schematic diagram of the structure of part A in

[0020] Figure 4 It is a schematic diagram of the state where the limiting member is tightly installed on the cable in the present invention;

[0021] Figure 5 It is a schematic diagram of the state where the limiting member is expanded and installed on the cable in the present invention.

[0022] In the figure: 1. Sheath sleeve; 2. Groove member; 3. Limiting member; 4. Rod member; 5. Adjusting tube; 6. Pulling rope; 7. Counterweight; 8. Bearing member; 9. Thin film protective sleeve; 10. Loop; 11. Moving object; 12. Limiting ring; 13. Windshield; 14. Flow guiding baffle; 15. Protrusion; 16. Elastic member. Specific Embodiments

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Such as Figures 1-5As shown in the figure, this embodiment provides a cable anti-snow device, which includes an annular sheath sleeve. There are two rotating areas oppositely arranged on the inner ring of the sheath sleeve. There are two groove members oppositely arranged on the outer ring of the sheath sleeve. The two groove members respectively correspond to the rotating areas at the same end side. The centers of gravity of the two groove members are centrosymmetric about the axis of the sheath sleeve for collecting snow. After the snow accumulates to a certain extent, due to the eccentric setting of the groove members, the original state is difficult to maintain, and thus one end of the sheath sleeve will rotate around the cable.

[0027] In the embodiment of the present invention, the sheath sleeve can be integrally formed or spliced, so that it can be sleeved with the cable in advance, and can also be sleeved with the cable after the cable is installed.

[0028] In the embodiment of the present invention, the inner cavity of the sheath sleeve is hollow and filled with movable objects, and the movable objects are always located at the inner bottom end position of the sheath sleeve. The movable objects include balls, antifreeze or sand particles. So that the movable objects will slide in the hollow loop during the rotation of the sheath sleeve and are always located at the bottom end position of the sheath sleeve, thereby improving the impact force of the subsequent fall of the sheath sleeve and enhancing the snow removal effect.

[0029] In the embodiment of the present invention, the volumes of the groove members both gradually increase from one end to the other end along the direction perpendicular to the cable, and the shapes of the two groove members are centrosymmetric about the axis of the sheath sleeve.

[0030] In the embodiment of the present invention, the shape of the groove member is a right trapezoid, its right-angled waist side is the groove bottom, the inclined waist side is the groove opening, and its groove wall forms a diversion baffle. It can better make the snow accumulate unevenly and improve the subsequent rapid deflection.

[0031] In the embodiment of the present invention, the shape of the sheath sleeve is composed of semi-circular segments at both ends and a straight segment connecting the two semi-circular segments.

[0032] In the embodiment of the present invention, windshields are fixedly arranged on the outer sides of the groove members.

[0033] In the embodiment of the present invention, two rods passing through the center connection line of the two rotating areas are fixedly arranged oppositely on the outer ring of the sheath sleeve. Adjusting tubes for inserting the rods on the same end side are fixedly arranged in the middle of the outer groove bottoms of the groove members, and elastic members are connected between the inner ends of the rods and the adjusting tubes.

[0034] By providing the rod member and the adjusting tube, the stability of the groove member during use can be ensured. Meanwhile, under the action of gravity, the groove member can move on the rod member, thereby further discharging the snow accumulated inside. At the same time, by providing the elastic member, after the snow is discharged, the pressure on the elastic member decreases, and then it can drive the groove member to move quickly on the rod member and impact with the rod member, further improving the effect of discharging snow. The elastic member is a spring, and its two ends are fixed to the rod member and the adjusting tube.

[0035] In an embodiment of the present invention, a thin film protective sleeve is sleeved on the outer periphery of the connection part between the rod member and the adjusting tube. Through the protection of the thin film protective sleeve, it can effectively prevent foreign objects from entering the adjusting tube and ensure the stability of the sliding of the adjusting tube. At the same time, both the adjusting tube and the rod member are provided in a regular polygon shape, which can effectively prevent the adjusting tube and the rod member from rotating relative to each other.

[0036] In an embodiment of the present invention, V-shaped limiting members are symmetrically arranged on the left and right sides of the middle part of the sheath sleeve. The V-shaped tips of the limiting members face inward, and the side edges on the upper and lower inner sides of the V-shaped tips are all arc-shaped, for assembling on the left and right sides of the other semi-circular vacant position in the rotation area on the same end side; one ends of the limiting members are all hinged to the sheath sleeve through bearing members to ensure the stability of the continuous rotation of the limiting members, and the other ends are all connected to the adjusting tube on the same end side through pull ropes. Counterweight blocks are fixedly arranged on the outer sides of the ends of the limiting members connected to the pull ropes to change the center of gravity of the limiting members.

[0037] By providing the pull ropes, when the groove member is located below the sheath sleeve, its gravity can pull the pull ropes, and then the pull ropes can pull the limiting members to rotate, so that a rotation area is re-formed between the limiting members and the sheath sleeve, ensuring the stability of the subsequent rotation of the sheath sleeve.

[0038] At the same time, after the sheath sleeve rotates 180°, the groove member below it rotates to the upper side of the sheath sleeve. During the subsequent continuous snow accumulation process, the upper groove member is continuously pressed and will then move downward. After moving a certain distance, the pull ropes become slack. Then, under the influence of the counterweight blocks, the limiting members can expand outward, so that the rotation area no longer restricts the cable, and then the sheath sleeve can fall downward under the action of gravity subsequently, and the impact effect of the subsequent fall is improved.

[0039] Then, the upper groove member will continue to receive snow and continue to rotate downward, and then will pull the pull ropes and finally make the pull ropes in a taut state, and then the limiting members can be retracted, so that the rotation area restricts the cable, ensuring the effect of the subsequent rotation.

[0040] In an embodiment of the present invention, limiting rings are symmetrically fixed on the left and right sides of the rod member on the side of the pull ropes of the outer circle of the sheath sleeve, and through holes for the pull ropes on the same side to pass through are formed in the limiting rings.

[0041] By forming a rotation area through the limiting member, the stability of the sheath sleeve during rotation can be improved. At the same time, through the provided adjusting member (pull rope), after the sheath sleeve rotates 180°, the adjusting member will automatically drive the limiting member to open, so that the other end of the sheath sleeve can fall downward faster under the action of gravity, improving the subsequent vibration effect and thus the snow removal effect.

[0042] In the embodiment of the present invention, a plurality of protrusions for contacting the cable are evenly distributed along the inner circle and the arc-shaped side edge of the sheath sleeve along its trajectory. By providing the protrusions, the contact area between the cable and the sheath sleeve and the limiting member can be reduced, thereby reducing the rotational resistance and improving the rotation effect.

[0043] A working method of a cable anti-snow accumulation device is carried out according to the following steps: The two rotation areas of the device are distributed up and down. The upper rotation area is for the cable to pass through. In the case of uneven accumulation of snow in the upper groove member or under the action of wind, the original state is difficult to maintain, and the device will rotate around the cable axis. When it rotates to 180 degrees, under the action of gravity, the device falls downward, causing the inside of the sheath sleeve to collide with the cable, generating vibrations to shake off the snow in the groove member. At the same time, the vibrations will also spread along the cable, changing the states of other devices and forming a chain reaction to achieve rapid snow removal.

[0044] The above is only a preferred embodiment of the present invention and is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A cable anti-snow device, characterized in that: It includes an annular sheath sleeve. Two rotating regions are oppositely arranged on the inner ring of the sheath sleeve. Two groove members are oppositely arranged on the outer ring of the sheath sleeve. The two groove members respectively correspond to the rotating regions at the same end side for collecting snow. And the centers of gravity of the two groove members are centrosymmetrically arranged about the axis of the sheath sleeve. Two rods passing through the center connection line of the two rotating regions are relatively fixed on the outer ring of the sheath sleeve. Adjusting pipes for inserting the rods at the same end side are fixedly arranged in the middle of the outer groove bottoms of the groove members. Elastic members are connected between the inner ends of the rods and the adjusting pipes. Class-V-shaped limiting members are symmetrically arranged on the left and right sides in the middle of the sheath sleeve. The tips of the class-V shapes of the limiting members all face inwards. And the side edges on the upper and lower inner sides of the tips of the class-V shapes are all arc-shaped for assembling on the left and right sides of the other semi-circular vacancy position in the rotating region at the same end side. One ends of the limiting members are all hinged on the sheath sleeve, and the other ends are all connected to the adjusting pipes at the same end side through pull ropes. Counterweight blocks are fixedly arranged on the outer sides of the ends of the limiting members connected to the pull ropes. The working method of this cable anti-snow device is carried out according to the following steps: The two rotating regions of the device are distributed vertically. The upper rotating region is for the cable to pass through. In the case of unbalanced accumulation of snow or wind force in the upper groove member, the original state is difficult to maintain. The device will rotate around the cable axis. When it rotates to 180 degrees, under the action of gravity, the device will fall downward, causing an impact between the inside of the sheath sleeve and the cable, and the generated vibration will shake off the snow in the groove member.

2. The cable snow prevention device according to claim 1, characterized in that: The inner cavity of the sheath sleeve is hollow and filled with moving objects, and the moving objects are always located at the inner bottom end position of the sheath sleeve.

3. The cable anti-snow device according to claim 1, characterized in that: The volumes of the groove members gradually increase from one end to the other end along the direction perpendicular to the cable. The shapes of the two groove members are centrosymmetric about the axis of the sheath sleeve.

4. The cable snow prevention device according to claim 1, wherein: The shape of the sheath sleeve is composed of semi-circular segments at both ends and a straight segment connecting the two semi-circular segments.

5. The cable anti-snow device according to claim 1, characterized in that: Wind shields are fixedly arranged on the outer sides of the groove members.

6. The cable snow prevention device according to claim 1, wherein: Limiting rings are symmetrically fixed on the left and right sides of the rod on the side of the pull rope on the outer ring of the sheath sleeve. Rope-passing holes for the pull ropes on the same side to pass through are opened on the limiting rings.

7. The cable anti-snow device according to claim 1, characterized in that: A number of protrusions for contacting the cable are uniformly distributed along the trajectories of the inner ring and the arc-shaped side edges of the sheath sleeve.

Images