A pre-buried pressure-resistant protection device for underground power pipelines

Abstract

The present invention provides a pre-buried pressure-resistant protection device for underground power pipelines, which belongs to the technical field of pre-buried underground power pipelines. It solves technical problems such as the need for customized installation of existing protection structures according to the laying length and bending angle of the pipeline. The pre-buried pressure-resistant protection device for underground power pipelines includes multiple installation mechanisms, and the multiple installation mechanisms are respectively provided with a linear support mechanism, a transition support mechanism and a turning support mechanism. The installation mechanism includes a base, and pointed cones are evenly fixed on the outer surface of the base. The pointed cones at the left and right ends of the base are inclined downward. A connecting hole is provided on the top of the base, and a rubber pad is fixed in the connecting hole. The turning support mechanism includes a third connecting block adapted to the inner wall of the rubber pad, and a first connecting column is fixed on the top of the third connecting block, and a long ring is rotatably connected to the first connecting column. The present invention has the advantages of adapting to the protection of power pipelines with various bending radians, and reinforcing and shielding the transition parts to improve the pressure resistance.

Description

Technical Field

[0001] The present invention belongs to the technical field of pre-buried underground power pipelines, and relates to a pre-buried anti-pressure protection device, in particular to a pre-buried anti-pressure protection device for underground power pipelines. Background Art

[0002] Underground power pipelines are important infrastructure to ensure the operation of cities and the lives of residents. During the construction of underground pipelines, a foundation pit is first excavated on the ground, and the foundation pit continues to extend on the ground; then each group of pipelines is hoisted into the foundation pit, and each group of pipelines is connected end to end inside the foundation pit. After the sealing lines between each group of pipelines are qualified after testing, the foundation pit is finally backfilled with soil, and the backfilled soil is used to bury the pipelines inside the foundation pit. The backfilled soil is then compacted and the ground is hardened. For some areas, the ground above the pipelines will need to be constructed with roads later. For some roads, when heavy vehicles pass through the road, the vehicles have higher requirements on the bearing capacity of the ground. For the ground with pipelines buried below, when the vehicles are driving, their weight will be transferred to the underground pipelines through the ground, especially when the vehicles pass directly over the pipelines, the pressure on the ground will increase significantly. This increased pressure may threaten the structural integrity of the pipelines.

[0003] A search revealed a Chinese patent document that discloses a municipal pipeline protection structure and its construction method [Application Number: 202111606022.9; Publication Number: CN114321494B]. This municipal pipeline protection structure covers the pipeline with a stainless steel cover plate. Connecting the stainless steel side formwork with a connecting plate, two sets of stainless steel side formwork are connected to the stainless steel cover plate, forming a prefabricated bracket surrounding the pipeline. This structure provides strong support when vehicles pass over the pipeline on the ground. This arrangement effectively protects the pipeline and reduces the damage rate of pipelines under the road.

[0004] Although the municipal pipeline protection structure disclosed in this patent is lowered, the protection structure needs to be customized and installed according to the pipeline laying length, bending angle, etc., and the splicing connection between the two sections of the protection structure is usually a weak point in terms of pressure resistance. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the existing technology and propose a pre-buried pressure-resistant protection device for underground power pipelines. The technical problem to be solved by this invention is: how to achieve protection for power pipelines that adapt to various bending radians, and to reinforce and shield the transition areas to improve the pressure resistance.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A pre-buried anti-compression protection device for underground power pipelines includes multiple mounting mechanisms, each of which is provided with a linear support mechanism, a transition support mechanism, and a turning support mechanism. The mounting mechanism includes a base, the outer surface of which is evenly fixed with pointed cones, the pointed cones at the left and right ends of the base being inclined downward, and the top of the base is provided with a connection hole, in which a rubber pad is fixed;

[0008] The turning support mechanism includes a third connecting block adapted to the inner wall of the rubber pad, a first connecting column is fixed on the top of the third connecting block, a long ring is rotatably connected to the first connecting column, a second connecting column is movably connected to the inner wall of the long ring, and a rotating plate is rotatably connected to the top of the second connecting column. Third sliding grooves are provided at both front and rear ends of the rotating plate, and two second adjustment components are symmetrically arranged in the third sliding groove.

[0009] The working principle of the present invention is as follows: after the trench is dug on the ground, the base is pressed down perpendicularly to the ground, and the pointed cones are inserted into the soil with the base for fixation, and the pointed cones on the left and right sides of the base are inclined toward the ground for easy insertion into the soil, and a large number of pointed cones increase the contact area with the soil. The base can be installed perpendicular to the trench edge according to the top viewing angle of the trench, and does not need to be customized according to the bending angle of the power pipeline. The third connecting block is aligned with the inner diameter of the rubber pad and pressed in. The initial installation and merging of the turning support mechanism and the base are achieved through the friction of the rubber material. The rotating plate is rotated according to the installation angle of the power pipeline, and the second connecting column and the rotating plate generate relative rotation. At the same time, the second connecting column rotates in the long ring, and the long ring is in the first connecting block. The connecting column rotates to realize the angle change of the rotating plate with the base on the basis of the inconvenient position of the third connecting block to adapt to the embedded grooves of different bending radians. A rotating assembly consisting of two groups of third connecting blocks, a first connecting column, a long ring and a second connecting column is symmetrically arranged on the bottom of one rotating plate. The flexibility of the rotation angle is achieved through the linkage cooperation of the rotating assembly. The first connecting column and the second connecting column are both one-piece molded structures with blocks set at both ends of the rotating shaft to limit the long ring, so that the first connecting column and the second connecting column can flexibly slide or rotate on the inner wall of the long ring without falling off. The second connecting column and the rotating plate are rotatably connected by a key-connected bearing.

[0010] Reinforcement plates are symmetrically fixed to the inner wall of the base, and a triangular structure is formed between the two reinforcement plates and the inner wall of the base.

[0011] With the above structure, the reinforcing plate can provide upward support for the power pipeline, and the reinforcing plate and the base form a triangular structure, thereby improving the support force of the reinforcing plate on the power pipeline and the overall compressive resistance of the base.

[0012] The long ring is made of copper alloy.

[0013] With the above structure, the copper alloy surface is electroplated with a rust inhibitor, and the long ring is made of a hard material, so that the first connecting column and the second connecting column can flexibly move on the inner wall of the long ring and have corrosion resistance.

[0014] The second adjusting component includes a second angular slider, there are two second angular sliders and they are distributed on the left and right, a limiting groove is provided on the inner wall of the second angular slider, a second limiting protrusion is slidably connected in the limiting groove, a second spring is fixed between the second limiting protrusion and the second angular slider, a second sliding plate is fixed between the two second limiting protrusions, a limiting groove is provided on the top of the second sliding plate, a limiting block is slidably connected in the limiting groove, a rotating shaft is fixed on the top of the limiting block, a connecting plate is rotatably connected to the rotating shaft, the connecting plate is rotatably connected to a rotating column at one end away from the rotating shaft, and a rotating baffle is fixedly connected to the bottom of the rotating column.

[0015] With the above structure, the second adjustment assembly can be further extended and adjusted based on the rotating plate, so that the turning support mechanism has a two-stage angle adjustment function and is more flexible. When the adjacent rotating plates are installed, the second angular slider is moved in the third slide groove. During this process, the restoring force of the second spring always presses the second limiting protrusion downward. The second sliding plate slides closely with the second limiting protrusion toward the front and rear ends of the rotating plate until it contacts the adjacent rotating plate, thereby providing shielding at the connection between the two rotating plates and improving the pressure resistance of the protective device. The rotating baffle is further rotated according to the bending degree of the power pipeline to adapt to the groove of the pre-buried power pipeline. The rotating column moves with the rotating baffle, and the connecting plate and the rotating column rotate to adapt to the movement of the rotating baffle. The other end of the connecting plate rotates on the rotating shaft, and the rotating shaft drives the limiting block to slide in the limiting slide groove, providing conditions for the movement and rotation of the rotating baffle. The limiting slide groove and the limiting block have a concave and convex matching and limiting structure to prevent them from falling off during sliding. The rotating baffle can further adjust the angle based on the rotation of the rotating plate, expand the rotation range, and adapt to grooves with more turning angles.

[0016] The over-support mechanism comprises a second connecting block adapted to the inner wall of the rubber pad, and a second flat plate is fixed on the top of the second connecting block.

[0017] The second flat plate is provided with a second sliding groove on both the left and right sides, and the two second adjustment components are symmetrically arranged in the second sliding groove.

[0018] With the above structure, for the straight pre-buried power pipeline, the straight line support mechanism is used to support and resist pressure. The curvature of the transition section from the straight line to the curve is small. The second flat plate can be installed on the base by pressing the second connecting block into the rubber pad. At this time, the second flat plate is covered in the straight groove with the second connecting block. The second adjustment component in the second slide groove is adjusted to connect the rotating baffle with the second flat plate and the rotating flat plate. The rotating baffle after rotation plays a transition role and blocks the excessive gap.

[0019] The second angular sliding block can slide in the second sliding groove and the third sliding groove.

[0020] With the above structure, the second adjustment component is installed on the second plate and the rotating plate to adapt to different groove plane angles, which is flexible.

[0021] The linear support mechanism includes a first connecting block adapted to the inner wall of the rubber pad, a first flat plate is fixed on the top of the first connecting block, first sliding grooves are opened on both left and right sides of the first flat plate, and first adjustment components are symmetrically arranged in the first sliding grooves.

[0022] With the above structure, for straight pre-buried power pipelines, the first connecting block is pressed into the rubber pad to achieve the installation of the first flat plate. The first flat plate directly covers the top of the groove without adjusting the angle, thereby protecting the space above the power pipeline. Its structure is simple, so that the overall protection device can adapt to grooves with various turning patterns while saving the cost of straight grooves.

[0023] The first adjustment component includes a first angular slider that is slidably connected to the first sliding groove. There are two first angular sliders and they are symmetrically distributed on the left and right sides. The two first angular sliders are provided with limiting grooves on the opposite sides. A first limiting protrusion is slidably connected in the limiting groove. A first spring is fixed between the first limiting protrusion and the first angular slider. A first sliding plate is fixed between the two first limiting protrusions. Fixed baffles are integrally formed on the opposite sides of the front and rear first sliding plates.

[0024] With the above structure, after the first flat plate is installed, the first angular slider is slid in the first slide groove, the first limiting protrusion moves with the first angular slider, and the restoring force of the first spring applies a downward pressure to the first angular slider, so that the first sliding plate slides closely against the first flat plate toward both ends of the first flat plate along with the first angular slider, and the fixed baffle contacts the fixed baffle on the adjacent first flat plate along with the first sliding plate, thereby shielding and reinforcing the connection between the adjacent first flat plates.

[0025] The pre-buried anti-pressure protection device for underground power pipelines further comprises a perforated rubber sleeve wrapped around the power pipeline, the perforated rubber sleeve is passed through the inner walls of the plurality of bases, and the perforated rubber sleeve is placed on the reinforcement sheet.

[0026] With the above structure, a perforated rubber sleeve is provided outside the protective sleeve of the power pipeline itself, so that the perforated rubber sleeve is separated between the power pipeline and the reinforcement plate, thereby reducing the wear between the power pipeline and the reinforcement plate during the movement of the power pipeline caused by soil vibration or pressure in the later stage. The rubber layer is used to buffer and absorb shock, and the holes in the rubber sleeve are opened to dissipate heat.

[0027] Compared with the existing technology, the pre-buried pressure protection device for underground power pipelines has the following advantages:

[0028] 1. By setting up the installation mechanism and the turning support mechanism, the base is vertically clamped in the pre-buried groove of the power pipeline with its nearly linear specifications, which can adapt to grooves of different curvatures. The installation method is simple. While supporting the various flat plates on the top, the downward pressure of the flat plates and the subsequent landfill is used for self-reinforcement, and a frame structure is formed for passing through the pipeline body in the positioning store. At the same time, the turning support mechanism is installed to achieve secondary rotation adjustment angle to cover and protect power pipelines with different bending angles, adapt to power pipeline grooves, improve flexibility, and no customization is required in advance. The protection angle can be adjusted on site, reducing construction time.

[0029] 2. By setting a reinforcement plate inside the base to form a triangular structure with the base, the support force of the reinforcement plate on the power pipeline and the overall compressive resistance of the base are improved.

[0030] 3. By setting the first adjustment component and the second adjustment component, the connection between the straight or curved first plate, the second plate or the rotating plate is shielded, so that the protective structure can be installed in sections and the pressure resistance of the connection is strengthened.

[0031] 4. By setting up an excessive support mechanism and a straight support mechanism, the straight power pipeline section and the transition section from the straight line to the arc power pipeline are protected. Its structure is simpler than the turning support mechanism, saving costs, and has fewer adjustment steps, saving construction time and construction costs.

[0032] 5. By installing a perforated rubber sleeve on the protective sleeve of the power pipeline itself, the perforated rubber sleeve is separated between the power pipeline and the reinforcement plate, reducing the wear between the power pipeline and the reinforcement plate during the movement of the power pipeline caused by soil vibration or pressure in the later stage. The rubber layer is used to buffer and absorb shock, and holes are opened on the rubber sleeve to dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention.

[0034] Figure 2 It is a structural schematic diagram of the installation mechanism in the present invention.

[0035] Figure 3 It is a structural schematic diagram of the rubber pad part of the present invention.

[0036] Figure 4 yes Figure 3 A magnified view of the structure at point A in the middle.

[0037] Figure 5 It is a structural diagram of the turning support mechanism part of the present invention.

[0038] Figure 6 yes Figure 5A magnified view of the structure at point A in the middle.

[0039] Figure 7 It is a structural schematic diagram of the rotating plate part in the present invention.

[0040] Figure 8 It is a structural diagram of the second regulating component part in the present invention.

[0041] Figure 9 yes Figure 8 A magnified view of the structure at point B.

[0042] Figure 10 It is a structural diagram of the over-support mechanism in the present invention.

[0043] Figure 11 It is a structural diagram of the second connecting block part in the present invention.

[0044] In the figure, 1. mounting mechanism; 101. base; 102. pointed cone; 103. reinforcement plate; 104. rubber pad; 2. linear support mechanism; 201. first flat plate; 202. first connecting block; 203. fixed baffle; 204. first chute; 3. transition support mechanism; 301. second flat plate; 302. second chute; 303. second connecting block; 4. turning support mechanism; 401. third connecting block; 402. first connecting column; 403. long ring; 404. second connecting column; 405 , rotating plate; 406, third slide; 5, first adjusting component; 501, first angular slider; 502, first spring; 503, first sliding plate; 504, first limiting protrusion; 6, second adjusting component; 601, second angular slider; 602, second limiting protrusion; 603, second spring; 604, second sliding plate; 605, limiting slide; 606, limiting block; 607, rotating shaft; 608, connecting plate; 609, rotating column; 610, rotating baffle; 7, rubber sleeve with holes. DETAILED DESCRIPTION

[0045] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0046] like Figures 1-11As shown, the pre-buried pressure-resistant protection device for underground power pipelines includes multiple installation mechanisms 1, and the multiple installation mechanisms 1 are respectively provided with a straight support mechanism 2, an excessive support mechanism 3 and a turning support mechanism 4. The installation mechanism 1 includes a base 101, and the outer surface of the base 101 is evenly fixed with pointed cones 102. The pointed cones 102 at the left and right ends of the base 101 are inclined downward. A connecting hole is opened on the top of the base 101, and a rubber pad 104 is fixed in the connecting hole. In this embodiment, after the trench is opened on the ground, the base 101 is pressed down perpendicular to the ground, and the pointed cones 102 are penetrated into the soil with the base 101 for fixation, and the pointed cones 102 on the left and right sides of the base 101 are inclined toward the ground to facilitate penetration into the soil, and the large number of pointed cones 102 increases the contact area with the soil. The base 101 can be installed perpendicular to the trench edge according to the top viewing angle of the trench, and does not need to be customized according to the bending angle of the power pipeline.

[0047] The turning support mechanism 4 includes a third connecting block 401 adapted to the inner wall of the rubber pad 104, a first connecting column 402 is fixed on the top of the third connecting block 401, a long ring 403 is rotatably connected to the first connecting column 402, the inner wall of the long ring 403 is movably connected to the second connecting column 404, and the top of the second connecting column 404 is rotatably connected to a rotating plate 405, and the front and rear ends of the rotating plate 405 are provided with third sliding grooves 407, and two second adjustment components 6 are symmetrically arranged in the third sliding grooves 407. In this embodiment, the third connecting block 401 is aligned with the inner diameter of the rubber pad 104 and pressed in, and the preliminary installation and merging of the turning support mechanism 4 and the base 101 are achieved by the friction of the rubber material. The rotating plate 405 is rotated according to the installation angle of the power pipeline, and the second connecting column 404 and the rotating plate 405 produce relative rotation. At the same time, the second connecting column 404 rotates in the long ring 403, and the long ring 40 The rotating plate 405 rotates on the first connecting post 402, thereby adjusting the angle of the rotating plate 405 relative to the base 101 to accommodate pre-buried grooves of different curvatures, despite the inconvenient position of the third connecting block 401. Two sets of rotating assemblies, consisting of the third connecting block 401, the first connecting post 402, the long ring 403, and the second connecting post 404, are symmetrically arranged at the bottom of one rotating plate 405. The flexible rotation angle is achieved through the coordinated cooperation of the rotating assemblies. Both the first connecting post 402 and the second connecting post 404 are integrally formed structures with blocks provided at both ends of the rotating shaft to limit the long ring 403. This allows both the first connecting post 402 and the second connecting post 404 to flexibly slide or rotate on the inner wall of the long ring 403 without falling off. The second connecting post 404 and the rotating plate 405 are rotatably connected via a key-connected bearing (this is a common means of rotational connection and is not shown in the accompanying drawings).

[0048] Reinforcement plates 103 are symmetrically fixed to the inner wall of the base 101, and a triangular structure is formed between the two reinforcement plates 103 and the inner wall of the base 101. In this embodiment, the reinforcement plates 103 can provide upward support for the power pipeline, and the reinforcement plates 103 and the base 101 form a triangular structure, thereby improving the support force of the reinforcement plates 103 on the power pipeline and the overall compressive resistance of the base 101.

[0049] The long ring 403 is made of copper alloy. In this embodiment, the surface of the copper alloy is electroplated with a rust inhibitor. The long ring 403 is made of a hard material, so that the first connecting column 402 and the second connecting column 404 can move flexibly on the inner wall of the long ring 403 and have corrosion resistance.

[0050] The second adjustment component 6 includes a second angular slider 601, the number of the second angular slider 601 is two and they are distributed on the left and right, the inner wall of the second angular slider 601 is provided with a limiting groove, a second limiting protrusion 602 is slidably connected in the limiting groove, a second spring 603 is fixed between the second limiting protrusion 602 and the second angular slider 601, a second sliding plate 604 is fixed between the two second limiting protrusions 602, a limiting slot 605 is provided on the top of the second sliding plate 604, a limiting block 606 is slidably connected in the limiting slot 605, a rotating shaft 607 is fixed on the top of the limiting block 606, and the rotating shaft 607 is fixed on the top of the limiting block 606. The movable shaft 607 is rotatably connected to a connecting plate 608, and the connecting plate 608 is rotatably connected to a rotating column 609 at one end away from the rotating shaft 607. The bottom of the rotating column 609 is fixedly connected to a rotating baffle 610. In this embodiment, the second adjustment component 6 can be further extended and adjusted in angle based on the rotating plate 405, so that the turning support mechanism 4 has a two-stage angle adjustment function, which is more flexible. When the adjacent rotating plate 405 is installed, the second angular slider 601 is moved in the third slide groove 406. During this process, the restoring force of the second spring 603 always pushes the second limiting protrusion 602 downward. The second sliding plate 604 follows the second limiting protrusion 602 and slides toward the front and rear ends of the rotating plate 405, until it contacts the adjacent rotating plate 405, thereby achieving shielding at the connection between the two rotating plates 405 and improving the pressure resistance of the protective device. The rotating baffle 610 is further rotated according to the bending degree of the power pipeline to adapt to the groove of the pre-buried power pipeline. The rotating column 609 moves with the rotating baffle 610. At the same time, the connecting plate 608 and the rotating column 609 rotate to adapt to the movement of the rotating baffle 610. The other end of the connecting plate 608 is on the rotating shaft 607. Rotate, and at the same time, the rotating shaft 607 drives the limit block 606 to slide in the limit slide groove 605, providing movement and rotation conditions for the rotating baffle 610, wherein the limit slide groove 605 and the limit block 606 are concave and convex adapted and limited structures (commonly used limit sliding structure, so it is not shown in the accompanying drawings, and the limit groove in this article is the same as the first limit protrusion 504 and the second limit protrusion 602, which will not be repeated below), to avoid falling off during the sliding process, so that the rotating baffle 610 can further adjust the angle on the basis of the rotation of the rotating plate 405, expand the rotation range, and adapt to grooves with more turning angles.

[0051] The transition support mechanism 3 includes a second connecting block 303 adapted to the inner wall of the rubber pad 104, a second flat plate 301 is fixed on the top of the second connecting block 303, and second slide grooves 302 are opened on the left and right sides of the second flat plate 301, and two second adjustment components 6 are symmetrically arranged in the second slide grooves 302. In this embodiment, for the straight pre-buried power pipeline, the straight line support mechanism 2 is used to support and resist pressure, and the curvature of the transition section from the straight line to the curve is small. The second flat plate 301 can be installed on the base 101 by pressing the second connecting block 303 into the rubber pad 104. At this time, the second flat plate 301 is covered in the straight groove with the second connecting block 303, and the second adjustment component 6 in the second slide groove 302 is adjusted (the adjustment method and principle of the second adjustment component 6 are the same as above) to make the rotating baffle 610 connect the second flat plate 310 and the rotating plate 405. The rotating baffle 610 after rotation plays a transition role and blocks the excessive gap.

[0052] The second angular slider 601 can slide in the second slide groove 302 and the third slide groove 407. In this embodiment, the second adjustment component 6 is installed on the second plate 301 and the rotating plate 405 to adapt to different groove plane angles and has flexibility.

[0053] The linear support mechanism 2 includes a first connecting block 202 adapted to the inner wall of the rubber pad 104, a first flat plate 201 is fixed on the top of the first connecting block 202, a first slide groove 204 is provided on both the left and right sides of the first flat plate 201, and a first adjustment component 5 is symmetrically arranged in the front and back of the first slide groove 204. In this embodiment, for the straight pre-buried power pipeline, the first connecting block 202 is pressed into the rubber pad 104 to achieve the installation of the first flat plate 201. The first flat plate 201 directly covers the top of the groove without adjusting the angle, thereby protecting the space above the power pipeline. Its structure is simple, so that the protection device as a whole can adapt to grooves with various turning methods while saving the cost of straight grooves.

[0054] The first adjustment component 5 includes a first angular slider 501 slidably connected to the first slide groove 204. The number of the first angular sliders 501 is two and they are symmetrically distributed. The two first angular sliders 501 are provided with limiting grooves on the opposite sides. A first limiting protrusion 504 is slidably connected in the limiting groove. A first spring 502 is fixed between the first limiting protrusion 504 and the first angular slider 501. A first sliding plate 503 is fixed between the two first limiting protrusions 504. The opposite sides of the front and rear first sliding plates 503 are integrally formed with a fixed baffle 203. In the example, after the first flat plate 201 is installed, the first angular slider 501 is slid in the first slide groove 204, and the first limiting protrusion 504 moves with the first angular slider 501. The restoring force of the first spring 501 applies a downward pressure to the first angular slider 501, so that the first sliding plate 503 slides toward both ends of the first flat plate 201 closely against the first flat plate 201 along with the first angular slider 501, and the fixed baffle 203 contacts the fixed baffle 203 on the adjacent first flat plate 201 along with the first sliding plate 503, thereby shielding and reinforcing the connection between the adjacent first flat plates 201.

[0055] The pre-buried pressure-resistant protection device for underground power pipelines also includes a perforated rubber sleeve 7 wrapped around the power pipeline. The perforated rubber sleeve 7 is passed through the inner walls of multiple bases 101 and is placed on the reinforcement sheet 103. In this embodiment, the perforated rubber sleeve 7 is arranged outside the protective sleeve of the power pipeline itself, so that the perforated rubber sleeve 7 is separated between the power pipeline and the reinforcement sheet 103, thereby reducing the wear between the power pipeline and the reinforcement sheet 103 during movement caused by soil vibration or pressure in the later stage, and the rubber layer is used to play a buffering and shock-absorbing role, and the holes opened on the rubber sleeve play a heat dissipation role.

[0056] The working principle of the present invention is as follows: after the ground is ditched, the base 101 is pressed down perpendicularly to the ground, and the pointed cone 102 is fixed in the soil along with the base 101. The third connecting block 401 is aligned with the inner diameter of the rubber pad 104 and pressed in. The friction of the rubber material is used to realize the preliminary installation and merging of the turning support mechanism 4 and the base 101. The rotating plate 405 is rotated according to the installation angle of the power pipeline. The second connecting column 404 and the rotating plate 405 rotate relative to each other. At the same time, the second connecting column 404 rotates in the long ring 403, and the long ring 403 rotates on the first connecting column 402, so that the rotating plate 405 can change its angle with the base 101 based on the inconvenient position of the third connecting block 401 to adapt to the pre-buried grooves with different curvatures. When the adjacent rotating plates 405 are installed, the second angular slider 601 is moved in the third slide groove 406.During this process, the restoring force of the second spring 603 always presses the second limiting protrusion 602 downward, and the second sliding plate 604 follows the second limiting protrusion 602 to slide closely against the rotating plate 405 toward the front and rear ends of the rotating plate 405 until it contacts the adjacent rotating plate 405, thereby achieving shielding at the connection between the two rotating plates 405, improving the pressure resistance of the protective device, and further rotating the rotating baffle 610 according to the bending degree of the power pipeline to adapt it to the groove of the pre-buried power pipeline, and the rotating column 609 moves with the rotating baffle 610, while the connecting plate 608 The rotating column 609 rotates to adapt to the movement of the rotating baffle 610. The other end of the connecting plate 608 rotates on the rotating shaft 607. At the same time, the rotating shaft 607 drives the limit block 606 to slide in the limit slide groove 605, providing movement and rotation conditions for the rotating baffle 610, so that the rotating baffle 610 can further adjust the angle on the basis of the rotation of the rotating plate 405. For the straight pre-buried power pipeline, the linear support mechanism 2 is used to support the pressure resistance. The curvature of the transition section from the straight line to the curve is small, which can be achieved by pressing the second connecting block 303 into the rubber pad 104. The second plate 301 is installed on the base 101. At this time, the second plate 301 is covered in the linear groove with the second connecting block 303. The second adjustment component 6 in the second slide groove 302 is adjusted to connect the rotating baffle 610 with the second plate 310 and the rotating plate 405. The rotating baffle 610 plays a transition role and blocks the excessive gap. For the linear pre-buried power pipeline, the first plate 201 is installed by pressing it into the rubber pad 104 through the first connecting block 202. The first plate 201 directly covers the top of the groove without adjusting the angle. After the first flat plate 201 is installed, the first angular slider 501 is slid into the first slot 204. The first limiting protrusion 504 moves with the first angular slider 501. The restoring force of the first spring 501 applies a downward force to the first angular slider 501, causing the first sliding plate 503 to slide along the first angular slider 501, close to the first flat plate 201, toward both ends of the first flat plate 201. The fixed baffle 203 follows the first sliding plate 503 and contacts the fixed baffle 203 on the adjacent first flat plate 201, shielding and reinforcing the joint between the adjacent first flat plates 201.

[0057] In summary, by setting up the installation mechanism, the straight line support mechanism, the transition support mechanism and the turning support mechanism, the protection of the power pipelines with various bending radians can be achieved, and the transition parts can be reinforced and shielded to improve the pressure resistance.

[0058] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A pre-buried pressure-resistant protection device for underground power lines, comprising a plurality of mounting mechanisms (1), characterized in that: The plurality of mounting mechanisms (1) are respectively provided with a linear support mechanism (2), a transition support mechanism (3) and a turning support mechanism (4), the mounting mechanism (1) comprising a base (101), the outer surface of the base (101) being evenly fixed with pointed cones (102), the pointed cones (102) at the left and right ends of the base (101) being inclined downward, a connection hole being provided at the top of the base (101), and a rubber pad (104) being fixed in the connection hole; The turning support mechanism (4) includes a third connecting block (401) adapted to the inner wall of the rubber pad (104), a first connecting column (402) is fixed on the top of the third connecting block (401), a long ring (403) is rotatably connected to the first connecting column (402), the inner wall of the long ring (403) is movably connected to the second connecting column (404), the top of the second connecting column (404) is rotatably connected to the rotating plate (405), the rotating plate (405) is provided with a third chute (406) at both the front and rear ends, two second adjustment components (6) are symmetrically arranged in the third chute (406), the second adjustment component (6) includes a second angular slider (601), the number of the second angular sliders (601) is two and they are distributed left and right, and the second angular sliders (60 1) A limiting groove is provided on the inner wall, a second limiting protrusion (602) is slidably connected in the limiting groove, a second spring (603) is fixed between the second limiting protrusion (602) and the second angular slider (601), a second sliding plate (604) is fixed between the two second limiting protrusions (602), a limiting groove (605) is provided on the top of the second sliding plate (604), a limiting block (606) is slidably connected in the limiting groove (605), a rotating shaft (607) is fixed on the top of the limiting block (606), a connecting plate (608) is rotatably connected to the rotating shaft (607), an end of the connecting plate (608) away from the rotating shaft (607) is rotatably connected to a rotating column (609), and a rotating baffle (610) is fixedly connected to the bottom of the rotating column (609).

2. The pre-buried pressure protection device for underground power lines according to claim 1, characterized in that: Reinforcement plates (103) are symmetrically fixed to the inner wall of the base (101), and a triangular structure is formed between the two reinforcement plates (103) and the inner wall of the base (101).

3. The pre-buried pressure protection device for underground power lines according to claim 1, characterized in that: The long ring (403) is made of copper alloy.

4. The pre-buried pressure protection device for underground power lines according to claim 1, characterized in that: The transition support mechanism (3) comprises a second connecting block (303) adapted to the inner wall of the rubber pad (104), and a second flat plate (301) is fixed on the top of the second connecting block (303).

5. The pre-buried pressure protection device for underground power lines according to claim 4, characterized in that: Second sliding grooves (302) are provided on both the left and right sides of the second flat plate (301), and two second adjustment components (6) are symmetrically arranged in the second sliding grooves (302) in a front-to-back manner.

6. The pre-buried pressure-resistant protection device for underground power lines according to claim 5, characterized in that: The second angular sliding block (601) can slide in both the second sliding groove (302) and the third sliding groove (406).

7. The pre-buried pressure protection device for underground power lines according to claim 1, characterized in that: The linear support mechanism (2) comprises a first connecting block (202) adapted to the inner wall of the rubber pad (104), a first flat plate (201) being fixed on the top of the first connecting block (202), first sliding grooves (204) being provided on both left and right sides of the first flat plate (201), and first adjustment components (5) being symmetrically arranged in the front and rear of the first sliding grooves (204).

8. The pre-buried pressure protection device for underground power lines according to claim 7, characterized in that: The first adjustment component (5) includes a first angular slider (501) slidably connected to the first slide groove (204), the number of the first angular sliders (501) is two and they are symmetrically distributed on the left and right sides, the two first angular sliders (501) are provided with limiting grooves on the opposite sides, a first limiting protrusion (504) is slidably connected in the limiting groove, a first spring (502) is fixed between the first limiting protrusion (504) and the first angular slider (501), a first sliding plate (503) is fixed between the two first limiting protrusions (504), and a fixed baffle (203) is integrally formed on the opposite sides of the front and rear first sliding plates (503).

9. The pre-buried pressure protection device for underground power lines according to claim 1, characterized in that: The pre-buried anti-pressure protection device for underground power lines further comprises a perforated rubber sleeve (7) wrapped around the power lines, the perforated rubber sleeve (7) being passed through the inner walls of the plurality of bases (101), and the perforated rubber sleeve (7) being placed on the reinforcing sheet (103).

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