Anti-collision protective sleeve for telegraph pole

Abstract

The telegraph pole anti-collision protective sleeve comprises a protective sleeve body movably arranged on a telegraph pole in a sleeving mode, and the bottom of the protective sleeve body is supported on the ground through hydraulic supporting legs; a sealing cavity is formed in the protective sleeve body, a fluid medium is filled in the sealing cavity, and the hydraulic supporting legs are communicated with fluid in the sealing cavity; a flow-limiting pressure relief hole communicated with fluid in the sealing cavity is formed in the protection sleeve body, and a pressure relief film is arranged in the flow-limiting pressure relief hole in a sealing fit mode; the vehicle impact protection sleeve body extrudes the sealing cavity, and a fluid medium in the sealing cavity enters the hydraulic supporting leg. The collision acting force of a vehicle acts on driving force to drive the hydraulic supporting legs to extend to push the protective sleeve body to move, sinking of a vehicle head is effectively restrained, buffering is provided through sinking force of the vehicle head, the hydraulic supporting legs and the protective sleeve body are in a mutual restraining state, the buffering effect is effectively improved, and harm caused by the head effect of the vehicle is reduced.

Description

Technical Field

[0001] This invention relates to the field of power facility technology. Specifically, it relates to a protective sleeve for utility poles. Background Technology

[0002] At the moment a vehicle collides with a utility pole, due to braking or the impact force, the front of the vehicle drops and the rear rises, creating a nose-down effect that can cause significant injury to occupants. Existing utility pole protective sleeves only provide cushioning along the direction of impact, and are insufficient in preventing the vehicle's front from dropping and reducing direct impact. Furthermore, the cushioning effect is mostly provided by the sleeve material itself, and the cushioning effect does not vary significantly at different times of the impact; the duration and effectiveness of the cushioning are also insufficient. When facing strong impacts, the protective effect provided is very limited. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a protective sleeve for utility poles. By using fluid as a driving medium, the sleeve body moves due to the instantaneous impact pressure generated by a vehicle collision, which suppresses the sinking of the vehicle's front end and disperses the direct impact force between the vehicle and the utility pole, greatly increasing the duration and effect of the buffering action and reducing the damage caused by the collision.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a protective sleeve for utility poles, comprising a protective sleeve body that is movably fitted onto the utility pole, the bottom of the protective sleeve body being supported on the ground by hydraulic outriggers; a sealed cavity is provided inside the protective sleeve body, the sealed cavity being filled with a fluid medium, and the hydraulic outriggers and the sealed cavity being fluidly connected; a flow-limiting and pressure-relief hole is provided on the protective sleeve body that is fluidly connected to the sealed cavity, and a pressure relief membrane is sealed and fitted inside the flow-limiting and pressure-relief hole; when a vehicle impacts the protective sleeve body and squeezes the sealed cavity, the fluid medium in the sealed cavity enters the hydraulic outriggers, driving the hydraulic outriggers to extend and push the protective sleeve body to move on the utility pole to disperse the impact force of the vehicle directly acting on the utility pole; when the pressure in the sealed cavity rises to a set value, it ruptures the pressure relief membrane, and the fluid medium in the sealed cavity flows outward from the flow-limiting and pressure-relief hole. By installing hydraulic outriggers, the impact force of a vehicle collision drives a fluid medium to extend the outriggers, which in turn moves the protective sleeve itself. This effectively disperses the impact force directly acting on the utility pole, protecting both the vehicle and its occupants, as well as the utility pole itself. More importantly, at the moment of impact, the vehicle is in close contact with the protective sleeve, and the hydraulic outriggers provide an upward force to the vehicle, effectively suppressing the nose-down effect and reducing the nose-down effect, thus protecting the safety of the occupants. The driving force of the hydraulic outriggers comes from the impact force of the vehicle; the greater the impact force, the greater the driving force provided by the hydraulic outriggers. By using the upward supporting force of the hydraulic outriggers to absorb the impact force of the vehicle, in other words, the impact force of the vehicle is converted into the power to lift the front of the vehicle, resulting in a better cushioning effect. Compared with the traditional cushioning provided by the elasticity of the material itself, this method has the characteristic of automatically matching the cushioning effect with the impact force, no longer relying on a specific thickness of the cushioning layer or special performance cushioning materials.

[0005] The aforementioned utility pole anti-collision protective sleeve features hydraulic outriggers arranged at an angle. These outriggers propel the protective sleeve body to move axially and circumferentially along the utility pole. By arranging the hydraulic outriggers at an angle, impact force can be dispersed both upwards and laterally. The rotation of the protective sleeve body causes the vehicle's front to turn, effectively reducing direct impact force.

[0006] The aforementioned protective sleeve for utility poles has the following characteristics: on a longitudinal plane along the axis of the protective sleeve body, the axis of the hydraulic outrigger intersects with the axis of the protective sleeve body; on a transverse plane perpendicular to the axis of the protective sleeve body, the hydraulic outrigger is arranged tangentially to the protective sleeve body.

[0007] In the aforementioned type of utility pole anti-collision protective sleeve, on the longitudinal plane along the axis of the protective sleeve body: the angle between the axis of the hydraulic outrigger and the axis of the protective sleeve body is >90° and <180°.

[0008] The aforementioned protective sleeve for utility poles contains a sealed cavity filled with a liquid and a gaseous medium. By using two media, different buffering effects can be provided at different times. The gas provides a relatively soft initial buffering effect, reducing deceleration at the moment of impact.

[0009] In the aforementioned protective sleeve for utility poles, the liquid medium is located in the lower part of the sealed cavity, and within the sealed cavity, the volume of the liquid medium is greater than the volume of the gas medium, wherein the gas medium is compressed air with a pressure greater than that of standard atmosphere.

[0010] The aforementioned protective sleeve for utility poles includes a pressure relief control component within the sealed cavity. The outlet end of the pressure relief control component is fluid-connected to the sealed cavity, and the inlet end is fluid-connected to the flow-limiting pressure relief hole. The pressure relief control component is also fluid-connected to a liquid or gaseous medium.

[0011] The aforementioned protective sleeve for utility poles includes a pressure relief control component that floats on the surface of a liquid medium. The pressure relief control component includes a rotating head mounted on an inlet end. The liquid inlet of the rotating head extends through the side wall of the rotating head. The rotation of the rotating head causes the liquid inlet to sequentially connect with the liquid medium and the gas medium.

[0012] The aforementioned pole anti-collision protective sleeve includes a pressure relief control component that further comprises a fixed head and a flexible hose. The rotating head is rotatably fitted onto one end of the fixed head and is fluid-conducting. Both ends of the flexible hose are fluid-conducting to the other end of the fixed head and the flow-limiting pressure relief orifice, respectively. An impeller is rotatably mounted inside the fixed head, and the impeller is coaxially connected to the rotating head via a connecting shaft. By incorporating a pressure relief control component floating on the liquid surface, when a collision occurs, the pressure relief membrane is pushed open, and the rotation of the rotating head causes the gas and liquid to circulate and be discharged outwards. Due to the difference in density between the two, the flow resistance is different, resulting in different discharge speeds. This achieves alternating changes in the softness and hardness of the buffer, increasing the buffering duration and ensuring a smooth and stable buffering process.

[0013] The aforementioned anti-collision protective sleeve for utility poles has floats fitted onto both the fixed head and the rotating head.

[0014] The technical solution of the present invention achieves the following beneficial technical effects:

[0015] 1. By incorporating a fluid medium within the protective sleeve body, in conjunction with hydraulic outriggers, upon collision, the impact force of the vehicle acts as a driving force, propelling the hydraulic outriggers to extend and move the protective sleeve body. This disperses the direct impact force of the vehicle and effectively suppresses the nose-down of the vehicle. Conversely, the nose-down force provides cushioning, with both elements mutually inhibiting each other, effectively improving the cushioning effect and reducing the damage caused by the nose-down effect. Simultaneously, the hydraulic outriggers can push the protective sleeve body to rotate along the utility pole, providing lateral deflection force to the vehicle and further reducing the direct impact force.

[0016] 2. By using a pressure relief diaphragm, the air pressure inside the sealed cavity increases at the initial moment of impact. Gas is used as a buffer first, which is more elastic and has a better buffering effect, reducing the deceleration at the moment of impact and achieving gradual buffering. At the same time, the pressure can rise to a certain level at this moment, thereby providing sufficient driving force for the hydraulic outrigger.

[0017] 3. By setting up pressure relief control components to alternately release gas and liquid, the pressure inside the sealed cavity rises and falls periodically due to the different fluid resistances and different release speeds. The entire release process increases the duration of the buffering effect and provides a smoother and more stable buffering action. Furthermore, the periodic fluctuations in pressure inside the sealed cavity allow the hydraulic outriggers to provide periodic support, causing the protective sleeve to move up and down periodically and form a relatively continuous rotational motion. This consumes more energy from the vehicle's nose sinking and increases the degree to which the vehicle is pushed to rotate laterally. Since the impact is a dynamic process, this continuous movement of the protective sleeve can consume more energy, disperse the impact force, and improve the buffering effect. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of the anti-collision protective sleeve for utility poles of the present invention;

[0019] Figure 2 A schematic diagram of the utility pole anti-collision protection kit of the present invention fitted onto a utility pole;

[0020] Figure 3 A partial cross-sectional schematic diagram of the anti-collision protective sleeve for utility poles of the present invention;

[0021] Figure 4 A cross-sectional schematic diagram of the pressure relief control component of the utility pole anti-collision protective sleeve of the present invention.

[0022] The reference numerals in the figure are as follows: 1-protective sleeve body; 2-sealed cavity; 3-hydraulic support leg; 4-flow limiting and pressure relief hole; 5-hose; 6-pressure relief control component; 61-rotating head; 62-fixed head; 63-float block; 64-impeller; 65-liquid inlet; 7-pressure relief diaphragm. Detailed Implementation

[0023] This embodiment provides a type of protective sleeve for utility poles, such as... Figure 1-2 As shown, the device includes a protective sleeve body 1 that is movably fitted onto a utility pole. The protective sleeve body 1 consists of two halves, which are connected by bolts and fitted onto the utility pole. There is a certain amount of clearance between the protective sleeve body 1 and the utility pole. The bottom of the protective sleeve body 1 is supported on the ground by hydraulic outriggers 3. The bottom and inner wall of the protective sleeve body 1 are reinforced with a high-strength material to withstand the pushing force applied by the hydraulic outriggers 3. A sealed cavity 2 is provided inside the protective sleeve body 1, which is filled with a fluid medium. The hydraulic outriggers 3 and the sealed cavity 2 are fluidly connected. The hydraulic outriggers 3 have a large piston area, which can generate a large thrust even with a small fluid pressure. This is the key to the movement of the protective sleeve body 1. The technical principle is existing technology, and the working principle of hydraulic transmission can be referred to for details.

[0024] like Figure 2-3 As shown, the protective sleeve body 1 has a flow-limiting and pressure-relief hole 4 that is in fluid communication with the sealing cavity 2. A pressure relief membrane 7 is sealed inside the flow-limiting and pressure-relief hole 4. The pressure relief membrane 7 is a diaphragm that automatically breaks when a certain pressure is reached. When a vehicle hits the protective sleeve body 1, it squeezes the sealing cavity 2. The fluid medium in the sealing cavity 2 enters the hydraulic outrigger 3, which drives the hydraulic outrigger 3 to extend and push the protective sleeve body 1 to move on the utility pole to disperse the impact force of the vehicle directly acting on the utility pole. When the pressure in the sealing cavity 2 rises to a set value, it ruptures the pressure relief membrane 7, and the fluid medium in the sealing cavity 2 flows out from the flow-limiting and pressure-relief hole 4.

[0025] like Figure 2 As shown, the hydraulic outrigger 3 is specifically arranged at an angle. On the longitudinal plane along the axis of the protective sleeve body 1, the axis of the hydraulic outrigger 3 intersects with the axis of the protective sleeve body 1. On the transverse plane perpendicular to the axis of the protective sleeve body 1, the hydraulic outrigger 3 is arranged tangentially along the protective sleeve body 1. The hydraulic outrigger 3 pushes the protective sleeve body 1 to move axially along the pole and circumferentially along the pole.

[0026] In this embodiment, on the longitudinal plane along the axis of the protective sleeve body 1: the angle between the axis of the hydraulic outrigger 3 and the axis of the protective sleeve body 1 is >90° and <180°. The smaller the angle between the hydraulic outrigger 3 and the protective sleeve body 1, the more lateral rotational thrust can be provided to the protective sleeve body 1, and more lateral force can be applied to the vehicle. The larger the angle between the hydraulic outrigger 3 and the protective sleeve body 1, the more vertical thrust can be provided to the protective sleeve body 1, and more vertical force can be applied to the vehicle, suppressing the front of the vehicle from sinking. The specific angle setting can be set according to the actual environment and needs.

[0027] like Figure 3As shown, the fluid medium filled in the sealed cavity 2 is a liquid medium and a gas medium. The liquid medium is located in the lower part of the sealed cavity 2. In the sealed cavity 2, the volume of the liquid medium is greater than the volume of the gas medium, and the gas medium is compressed air with a pressure greater than that of standard atmosphere.

[0028] like Figure 2-4 As shown, a pressure relief control component 6 is also provided in the sealed cavity 2. The pressure relief control component 6 includes a rotating head 61, a fixed head 62, a float 63, an impeller 64, and a hose 5. Floats 63 are respectively fitted on the fixed head 62 and the rotating head 61, so that the pressure relief control component 6 floats on the surface of the liquid medium. The rotating head 61 is located at the inlet end of the entire pressure relief control component 6. The rotating head 61 is rotatably fitted to one end of the fixed head 62 and is fluidly connected to each other. The two ends of the hose 5 are fluidly connected to the other end of the fixed head 62 and the flow-limiting pressure relief hole 4, respectively. The liquid inlet 65 of the rotating head 61 extends out of the side wall of the rotating head 61. The impeller 64 is rotatably located in the fixed head 62 and is coaxially connected to the rotating head 61 through a connecting shaft. The rotation of the rotating head 61 causes the liquid inlet 65 to alternately connect with gas and liquid fluids. To prevent the pressure relief control component 6 from being directly crushed by a vehicle collision, a protective net can be installed around the pressure relief control component 6, or a groove or cavity that can accommodate the pressure relief control component 6 can be installed in the sealing cavity 2 to prevent the pressure relief control component 6 from being crushed.

[0029] Specific working principle: When a vehicle collides with the protective cover, the protective cover body 1 is compressed, and the pressure in the sealed cavity 2 increases. Since the pressure relief membrane 7 blocks the flow-limiting pressure relief hole 4, the internal pressure continues to rise. At this time, the pressure rise is achieved by the volume of compressed gas. The initial buffering effect is achieved by the deformation and elasticity of the compressed gas and the protective cover body 1 itself. As the pressure rises, liquid enters the hydraulic outrigger 3. The hydraulic outrigger 3 extends and pushes the protective cover body 1, causing it to move upward along the utility pole and rotate along the utility pole, applying an upward force F1 and a lateral force F2 to the vehicle, dispersing the direct impact force of the vehicle, causing the vehicle to turn laterally and suppressing the front of the vehicle from sinking.

[0030] As the impact continues, when the pressure inside the sealed cavity 2 rises to the preset pressure, the pressure relief membrane is ruptured, such as... Figure 2 , Figure 4As shown, fluid in the sealed cavity 2 enters through the inlet 65, the fixed head 62, and the hose 5, and is finally discharged through the pressure relief control component 6. During the fluid flow, it passes through the impeller 64, which drives it to rotate. The impeller 64 drives the rotating head 61 to rotate, causing the inlet 65 to continuously circulate with air and liquid. Due to the different flow resistances of the two fluid media, when air is discharged, the resistance is small and the discharge speed is fast, resulting in a faster pressure drop in the sealed cavity 2, providing a relatively "soft" buffering effect. When liquid is discharged, the resistance is large and the discharge speed is slow, while the impact process continues, resulting in a slower pressure drop or even an increase in the sealed cavity 2, providing a relatively "hard" buffering effect. This process may also include the elastic buffering provided by compressed air, and this process continues. During this process, as the pressure in the sealed cavity 2 continuously rises and falls, the hydraulic outrigger 3 provides a strong pushing force when driven by greater pressure, and a weaker pushing force when the pressure drops, ultimately exhibiting a dynamic support effect to consume more impact energy and improve the buffering effect.

[0031] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A protective sleeve for a telegraph pole, comprising a sleeve body (1) which is arranged to be moved onto the telegraph pole, characterized in that The bottom of the protective sleeve body (1) is supported on the ground by hydraulic outriggers (3); a sealed cavity (2) is provided inside the protective sleeve body (1), and the sealed cavity (2) is filled with fluid medium. The hydraulic outriggers (3) and the sealed cavity (2) are fluidly connected; a flow-limiting pressure relief hole (4) is opened on the protective sleeve body (1) and is fluidly connected to the sealed cavity (2). A pressure relief membrane (7) is sealed and fitted inside the flow-limiting pressure relief hole (4); when a vehicle hits the protective sleeve body (1), it squeezes the sealed cavity (2). The fluid medium in the sealed cavity (2) enters the hydraulic outrigger (3), drives the hydraulic outrigger (3) to extend and push the protective sleeve body (1) to move on the utility pole to disperse the impact force of the vehicle directly acting on the utility pole; when the pressure in the sealed cavity (2) rises to a set value, it ruptures the pressure relief membrane (7), and the fluid medium in the sealed cavity (2) flows out from the flow-limiting pressure relief hole (4).

2. A protective sleeve for utility poles according to claim 1, characterized in that The hydraulic outrigger (3) is arranged at an angle, and the hydraulic outrigger (3) pushes the protective sleeve body (1) to move along the axial direction of the utility pole and along the circumferential direction of the utility pole.

3. A protective sleeve for utility poles according to claim 2, characterized in that On the longitudinal plane along the axis of the protective sleeve body (1): the axis of the hydraulic outrigger (3) intersects the axis of the protective sleeve body (1); on the transverse plane perpendicular to the axis of the protective sleeve body (1): the hydraulic outrigger (3) is arranged tangentially to the protective sleeve body (1).

4. A protective sleeve for utility poles according to claim 3, characterized in that On the longitudinal plane along the axis of the protective sleeve body (1): the angle between the axis of the hydraulic outrigger (3) and the axis of the protective sleeve body (1) is >90° and <180°.

5. A protective sleeve for utility poles according to any one of claims 1-4, characterized in that The fluid medium filled in the sealed cavity (2) is a liquid medium and a gas medium.

6. A protective sleeve for utility poles according to claim 5, characterized in that The liquid medium is located in the lower part of the sealed cavity (2). In the sealed cavity (2), the volume of the liquid medium is greater than the volume of the gas medium, and the gas medium is compressed air with a pressure greater than that of a standard atmosphere.

7. A protective sleeve for utility poles according to claim 5, characterized in that The sealed cavity (2) is also provided with a pressure relief control component (6). The outlet end of the pressure relief control component (6) is fluidly connected to the sealed cavity (2), and the inlet end is fluidly connected to the flow-limiting pressure relief hole (4). The pressure relief control component (6) is fluidly connected to the liquid medium or the gas medium.

8. A protective sleeve for utility poles according to claim 7, characterized in that The pressure relief control component (6) floats on the surface of the liquid medium. The pressure relief control component (6) includes a rotating head (61) disposed on the inlet end. The liquid inlet (65) of the rotating head (61) extends through the side wall of the rotating head (61). The rotating head (61) rotates to drive the liquid inlet (65) to sequentially connect with the liquid medium and the gas medium fluid.

9. A protective sleeve for utility poles according to claim 8, characterized in that The pressure relief control component (6) also includes a fixed head (62) and a hose (5). The rotating head (61) is rotatably fitted on one end of the fixed head (62) and is fluid-conducting. The two ends of the hose (5) are fluid-conducting to the other end of the fixed head (62) and the flow-limiting pressure relief hole (4), respectively. An impeller (64) is rotatably installed inside the fixed head (62). The impeller (64) is coaxially connected to the rotating head (61) through a connecting shaft.

10. A protective sleeve for utility poles according to claim 9, characterized in that, The fixed head (62) and the rotating head (61) are respectively fitted with floats (63).

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