Power box culvert with protection structure

CN224692719UActive Publication Date: 2026-08-28QINGDAO QINGXIN BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202521710383.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2026-08-28
Estimated Expiration
2035-08-12

AI Technical Summary

Technical Problem

[0003]针对上述情况,为克服现有技术的缺陷,本实用新型提供一种带有防护结构的电力箱涵,有效的解决了现有箱涵通常安装在地下土壤中,箱涵顶部会受到填土压力、以及过往车辆压力荷载,从而容易导致箱涵顶部受损,进而降低其使用寿命的问题

Benefits of technology

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, when the anti-arch top is under great pressure from the top, it will deform downward to relieve the pressure. When the anti-arch top deforms downward, it will drive the insertion rod to move down along the inside of the insertion hole and simultaneously squeeze the telescopic spring. The elastic force of the telescopic spring will relieve some of the pressure and make deformation compensation. At the same time, the insertion rod will drive the two support rods to drive the two sliders to slide down inside the two slide grooves and squeeze the first spring. The elastic force of the two first springs will relieve some of the pressure and make deformation compensation. Thus, the pressure borne by the anti-arch top can be transmitted to the two side walls of the main body of the power box culvert, so that the force is evenly distributed and the compressive strength is improved.

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Abstract

The utility model relates to electric power box culvert technical field, and disclose a kind of electric power box culvert with protection structure, solve the existing existing box culvert usually installed in underground soil, box culvert top will be subjected to fill pressure, and past vehicle pressure load, to easily lead to box culvert top damage, and then reduce its service life problem, it includes electric power box culvert main part, the both sides of electric power box culvert main part top are all fixedly installed with fixed seat, and the top between two fixed seats is fixedly installed with inverted arch top, and the one end of electric power box culvert main part is provided with butt joint groove, and the one end of electric power box culvert main part away from butt joint groove is provided with the butt joint of adaptation with butt joint groove, and the bottom of electric power box culvert main part is fixedly installed with mounting seat;The electric power box culvert has effective compression resistance, to greatly reduce the damage caused by fill pressure and past vehicle pressure load on box culvert top, improve its service life.
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Description

Technical Field

[0001] This utility model belongs to the field of power box culvert technology, specifically a power box culvert with a protective structure. Background Technology

[0002] Power box culverts are underground structures used to protect and maintain cables and power facilities. They are typically constructed from reinforced concrete box-shaped pipe sections with square or rectangular cross-sections. They enclose cables and facilities in a sealed space, preventing the intrusion and damage of external debris (such as rainwater, mud, and gravel), and protecting them from the influence of the external environment. At the same time, power box culverts provide maintenance personnel with a convenient and safe working environment, facilitating the repair and replacement of cables and facilities, and preventing damage and theft. They have a wide range of applications, including urban underground utility tunnels and power cable tunnels, and are important facilities for ensuring the normal operation of urban power facilities and extending their service life, playing a vital role in strengthening underground infrastructure construction. Existing box culverts are usually installed underground in the soil. The top of the box culvert is subjected to the pressure of the backfill soil and the pressure load of passing vehicles, which can easily lead to damage to the top of the box culvert and reduce its service life. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a power box culvert with a protective structure, which effectively solves the problem that existing box culverts are usually installed in underground soil, and the top of the box culvert is subject to the pressure of the backfill soil and the pressure load of passing vehicles, which easily leads to damage to the top of the box culvert and reduces its service life.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a power culvert with a protective structure, comprising a power culvert body, fixed seats fixedly installed on both sides of the top of the power culvert body, an anti-arch roof fixedly installed between the tops of the two fixed seats, a docking groove opened at one end of the power culvert body, a mating joint adapted to the docking groove opened at the end of the power culvert body away from the docking groove, an mounting seat fixedly installed at the bottom of the power culvert body, and an elastic compensation component for protecting the anti-arch roof is provided between the interior of the power culvert body and the anti-arch roof, transmitting the pressure of the upper part of the anti-arch roof to the top and sides of the power culvert body.

[0005] Preferably, the elastic compensation component includes a first mounting groove, which is opened in the middle of the top of the main body of the power box culvert. The bottom of the first mounting groove is provided with a through hole, and a rod is movably inserted into the through hole. A support is fixedly installed on the top of the rod, and the upper part of the support is fixedly connected to the middle of the inner top of the inverted arch. A telescopic spring is sleeved on the surface of the rod, and the two ends of the telescopic spring are fixedly connected to the support and the inner bottom of the first mounting groove, respectively.

[0006] Preferably, the bottom of the insertion rod is symmetrically mounted with two support rods via a pivot axis. The lower ends of the two support rods are rotatably mounted with connectors. The ends of the two connectors that are far apart from each other are fixedly mounted with sliders. The inner walls on both sides of the main body of the power box are provided with grooves. The two sliders are slidably mounted in the upper part of the two grooves. The lower part of the two grooves is provided with a first spring. The two ends of the two first springs are respectively fixedly connected to the sliders and the inner bottom of the grooves.

[0007] Preferably, transmission rods are rotatably installed on both sides of the bottom of the inner arch, and sliding sleeves are rotatably installed on the lower ends of the two transmission rods. Second mounting grooves are opened on both sides of the upper surface of the power box culvert body. Sliding rods are fixedly installed inside the two second mounting grooves. Two sliding sleeves are slidably installed on the surfaces of the two sliding rods. A second spring is sleeved on one side of the surface of the two sliding rods. The two ends of the two second springs are respectively fixedly connected to the sliding sleeves and the inner walls of the second mounting grooves.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, when the anti-arch top is under great pressure from the top, it will deform downward to relieve the pressure. When the anti-arch top deforms downward, it will drive the insertion rod to move down along the inside of the insertion hole and simultaneously squeeze the telescopic spring. The elastic force of the telescopic spring will relieve some of the pressure and make deformation compensation. At the same time, the insertion rod will drive the two support rods to drive the two sliders to slide down inside the two slide grooves and squeeze the first spring. The elastic force of the two first springs will relieve some of the pressure and make deformation compensation. Thus, the pressure borne by the anti-arch top can be transmitted to the two side walls of the main body of the power box culvert, so that the force is evenly distributed and the compressive strength is improved.

[0009] As the inverted arch deforms downwards, it also drives two transmission rods to push two sliding sleeves to slide towards each other along the surfaces of the two sliding rods, while simultaneously compressing two second springs. The elastic force of the two second springs relieves some of the pressure and compensates for the deformation, thereby distributing the pressure borne by the inverted arch evenly on the top of the power box culvert body, making the stress uniform and improving its compressive strength. This gives the power box culvert effective compressive strength, thus greatly reducing the damage caused by the pressure of the backfill soil and the pressure load of passing vehicles on the top of the box culvert, and improving its service life. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram: Figure 1 This is a front view schematic diagram of the power box culvert with protective structure of this utility model; Figure 2This is a schematic diagram of the orthographic section of the power box culvert with protective structure of this utility model; Figure 3 This is a schematic diagram of the front and rear views of the power box culvert with protective structure of this utility model; Figure 4 This utility model Figure 2 A magnified schematic diagram of the central part of the structure; In the diagram: 1. Main body of the power box culvert; 2. Fixed seat; 3. Reverse arch; 4. Connecting groove; 5. Connecting joint; 6. Mounting seat; 7. First mounting groove; 8. Insertion hole; 9. Insert rod; 10. Support seat; 11. Telescopic spring; 12. Rotating shaft; 13. Support rod; 14. Connector; 15. Sliding block; 16. First spring; 17. Slide groove; 18. Transmission rod; 19. Second mounting groove; 20. Sliding rod; 21. Sliding sleeve; 22. Second spring. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0013] Depend on Figures 1 to 4 The present invention includes a power culvert body 1, with fixed seats 2 fixedly installed on both sides of the top of the power culvert body 1, and an anti-arch roof 3 fixedly installed between the tops of the two fixed seats 2. A docking groove 4 is opened at one end of the power culvert body 1, and a mating joint 5 adapted to the docking groove 4 is opened at the end of the power culvert body 1 away from the docking groove 4. An mounting seat 6 is fixedly installed at the bottom of the power culvert body 1. An elastic compensation component for protecting the anti-arch roof 3 is provided between the interior of the power culvert body 1 and the anti-arch roof 3, transmitting the pressure on the upper part of the anti-arch roof 3 to the top and sides of the power culvert body 1.

[0014] When in use, the anti-arch 3 will deform downwards to relieve the pressure when it is under great pressure from the upper part. When the anti-arch 3 deforms downwards, the elasticity of the elastic compensation component will relieve part of the pressure and perform deformation compensation. In this way, the pressure borne by the anti-arch 3 can be transferred to the top and two side walls of the main body 1 of the power box culvert, so that the stress is evenly distributed and the compressive strength is improved. This gives the power box culvert effective compressive strength, thereby greatly reducing the damage caused by the pressure of the backfill soil and the pressure load of passing vehicles on the top of the box culvert, and improving its service life.

[0015] The elastic compensation component includes a first mounting groove 7, which is located in the middle of the top of the main body 1 of the power box culvert. The bottom of the first mounting groove 7 is provided with a through hole 8. A rod 9 is movably inserted into the through hole 8. A support base 10 is fixedly installed on the top of the rod 9. The upper part of the support base 10 is fixedly connected to the middle of the inner top of the anti-arch roof 3. A telescopic spring 11 is sleeved on the surface of the rod 9. The two ends of the telescopic spring 11 are fixedly connected to the support base 10 and the inner bottom of the first mounting groove 7, respectively. When the anti-arch 3 deforms downward, it will cause the insertion rod 9 to move downward along the inside of the insertion hole 8, and at the same time squeeze the telescopic spring 11. The elastic force of the telescopic spring 11 will relieve some of the pressure and make deformation compensation.

[0016] Two support rods 13 are symmetrically mounted on the bottom of the insertion rod 9 via a pivot 12. Connectors 14 are rotatably mounted on the lower ends of the two support rods 13. Slider 15 is fixedly mounted on the ends of the two connectors 14 that are far apart from each other. Slide grooves 17 are provided on the inner walls of both sides of the main body 1 of the power box. The two sliders 15 are slidably mounted on the upper part of the two slide grooves 17. The lower part of the two slide grooves 17 is provided with a first spring 16. The two ends of the two first springs 16 are fixedly connected to the slider 15 and the inner bottom of the slide groove 17, respectively.

[0017] At the same time, the insertion rod 9 will drive the two support rods 13 to drive the two sliders 15 to slide down inside the two slide grooves 17 and squeeze the first spring 16. The elastic force of the two first springs 16 will relieve some of the pressure and make deformation compensation, so that the pressure borne by the anti-arch 3 can be transmitted to the two side walls of the power box culvert body 1, so that the force is evenly distributed and the pressure resistance is improved.

[0018] On both sides of the bottom of the inverted arch 3, transmission rods 18 are rotatably installed. Sliding sleeves 21 are rotatably installed at the lower ends of the two transmission rods 18. On both sides of the upper surface of the power box culvert body 1, second mounting grooves 19 are provided. Sliding rods 20 are fixedly installed inside the two second mounting grooves 19. The two sliding sleeves 21 are slidably installed on the surface of the two sliding rods 20. A second spring 22 is sleeved on one side of the surface of the two sliding rods 20. The two ends of the two second springs 22 are fixedly connected to the sliding sleeves 21 and the inner wall of the second mounting grooves 19, respectively.

[0019] As the anti-arch 3 deforms downwards, it also drives the two transmission rods 18 to push the two sliding sleeves 21 to slide towards each other along the surfaces of the two sliding rods 20, and at the same time squeezes the two second springs 22. The elastic force of the two second springs 22 relieves some of the pressure and makes deformation compensation, thereby distributing the pressure borne by the anti-arch 3 evenly on the top of the power box culvert body 1, making it uniformly stressed and improving its compressive strength.

Claims

1. A power box culvert with a protective structure, comprising a power box culvert body (1), characterized in that: The power box culvert body (1) has fixed seats (2) on both sides of the top. An anti-arch roof (3) is fixedly installed between the tops of the two fixed seats (2). A docking groove (4) is opened at one end of the power box culvert body (1). A mating joint (5) adapted to the docking groove (4) is opened at the end of the power box culvert body (1) away from the docking groove (4). An mounting seat (6) is fixedly installed at the bottom of the power box culvert body (1). An elastic compensation component for protecting the anti-arch roof (3) is provided between the interior of the power box culvert body (1) and the anti-arch roof (3), and the pressure on the upper part of the anti-arch roof (3) is transmitted to the top and sides of the power box culvert body (1).

2. The power culvert with a protective structure according to claim 1, characterized in that: The elastic compensation component includes a first mounting groove (7), which is located in the middle of the top of the main body (1) of the power box culvert. The bottom of the first mounting groove (7) is provided with a through hole (8). A rod (9) is inserted into the inside of the through hole (8). A support seat (10) is fixedly installed on the top of the rod (9). The upper part of the support seat (10) is fixedly connected to the middle of the top of the inner arch (3). A telescopic spring (11) is sleeved on the surface of the rod (9). The two ends of the telescopic spring (11) are fixedly connected to the support seat (10) and the inner bottom of the first mounting groove (7), respectively.

3. A power culvert with a protective structure according to claim 2, characterized in that: The bottom of the insertion rod (9) is symmetrically mounted with two support rods (13) via a pivot (12). The lower ends of the two support rods (13) are rotatably mounted with connectors (14). The ends of the two connectors (14) that are far apart from each other are fixedly mounted with sliders (15). The inner walls of both sides of the power box culvert body (1) are provided with grooves (17). The two sliders (15) are slidably mounted in the upper part of the two grooves (17). The lower part of the two grooves (17) is provided with first springs (16). The two ends of the two first springs (16) are fixedly connected to the sliders (15) and the inner bottom of the grooves (17), respectively.

4. A power culvert with a protective structure according to claim 2, characterized in that: The bottom of the inverted arch (3) is rotatably mounted on both sides of the bottom. The lower ends of the two transmission rods (18) are rotatably mounted with sliding sleeves (21). The upper surface of the power box culvert body (1) is provided with second mounting grooves (19) on both sides. The interior of the two second mounting grooves (19) is fixedly mounted with sliding rods (20). The two sliding sleeves (21) are slidably mounted on the surface of the two sliding rods (20). The surface of the two sliding rods (20) is fitted with a second spring (22) on one side. The two ends of the two second springs (22) are fixedly connected to the sliding sleeves (21) and the inner wall of the second mounting grooves (19), respectively.