A pipe joint storage protective cover for a tunnel

Abstract

The application belongs to the technical field of tunnel excavation, in particular to a pipe joint storage protective cover for a tunnel, which comprises a corrugated cover and two guide plates; the upper half of the corrugated cover is in an arch shape, the lower half of the corrugated cover is in a vertical shape, the lower end of the vertical part is provided with a guide block, the guide block is in a T shape and is slidingly connected in a sliding groove of the guide plate, the cross section of the sliding groove is adapted to the shape of the end surface of the guide block, and the pipe joint is placed in the corrugated cover; the pipe joint is hoisted into the cover, then the corrugated cover is pulled to completely cover the pipe joint, the corrugated cover blocks the soil, concrete and other pollutants from the outside environment, thereby protecting the pipe joint, and the corrugated cover cooperates with the guide plate, so that the structure is simple, easy to operate, the pipe joint can be effectively protected, and the loss is reduced.

Description

Technical Field

[0001] This invention belongs to the field of tunnel excavation technology, specifically a protective cover for storing tunnel pipe sections. Background Technology

[0002] During tunnel excavation, pipe sections need to be embedded in the already excavated culverts to support the earthwork and harden the working environment to facilitate continued excavation. Therefore, pipe sections are prepared around the tunnel opening. The pipe sections are made of concrete and steel frame, and their ends are equipped with steel collars for connecting two pipe sections.

[0003] Due to the harsh environment caused by tunnel excavation, including mud, concrete, and oil stains from machinery, the pipe sections are contaminants. After prefabrication, the pipe sections are transported to the excavation site, but not all of them can be used immediately upon arrival. Problems encountered during excavation can delay the lowering of the pipe sections into the culvert. The harsh environment also affects the sealing of subsequent joints. Furthermore, exposure to sunlight can cause surface cracking. Before use, the pipe sections are waxed and baked to allow the wax to better penetrate the concrete. Waxing prevents secondary water absorption, providing lubrication and waterproofing. However, if the waxed sections are not used immediately and are exposed to harsh conditions, the wax film may be damaged, requiring a second waxing, resulting in unnecessary manpower and financial investment. Therefore, after transporting the pipe sections to the excavation site, they are hoisted into a protective cover. The cover is opened when needed and used to protect the pipe sections when not in use.

[0004] Therefore, the present invention provides a protective cover for storing tunnel sections. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A protective cover for storing tunnel pipe sections, comprising a corrugated cover and two guide plates; the upper half of the corrugated cover is arched, and the lower half is vertical. A guide block is provided at the lower end of the vertical part. The guide block is T-shaped and slidably connected in a groove opened in the guide plate. The cross-section of the groove is adapted to the end face shape of the guide block. A pipe section is placed inside the corrugated cover. The pipe section is hoisted into the cover, and then the corrugated cover is pulled so that it completely covers the pipe section. The corrugated cover blocks pollution such as soil and concrete from the external environment, thus protecting the pipe section. The corrugated cover and the guide plates cooperate in a simple structure, are easy to operate, and can effectively protect the pipe section and reduce losses.

[0007] Preferably, the lower surface of the guide plate is provided with a raised platform cut from cement; isolation sleepers are laid between adjacent pipe sections, and raised sleepers are provided on the lower surface of the bottom pipe section, with the height of the raised sleepers being the same as the height of the raised platform; the pipe sections themselves are heavy, and the issue of ground subsidence after the pipe sections are stacked needs to be considered, to prevent soil or water stains from adhering to the pipe sections. The ground in the area where the pipe sections are placed is hardened, and then raised sleepers are laid on the ground to isolate the pipe sections from the ground. This can reduce the contamination of the pipe sections by water stains on the ground, and at the same time, reduce the wear on the corners of the pipe sections when lifting, and better store and protect the pipe sections. The isolation sleepers laid between the pipe sections also reduce the wear on the corners of the pipe sections when lifting. Furthermore, the guide plate is erected on the raised platform, which also protects the corrugated cover and reduces the splashing of soil or water stains from the external environment into the chute, causing the guide block to move unevenly.

[0008] Preferably, a connecting rod is provided between two adjacent low-lying points on the arched portion of the corrugated hood, with an elastic support rod passing through the low-lying point. The support rod is arranged along the arched shape of the corrugated hood. One end of the connecting rod is rotatably connected to the support rod, and a sleeve is provided between the other ends of the connecting rod. The connecting rod is slidably connected inside the sleeve. The outer ring of the connecting rod has elastic protrusions, and the end of the sleeve has a locking mechanism. When the corrugated hood protects the pipe section, it blocks external contaminants such as soil or concrete. However, contaminants will also accumulate on its surface. After the contaminants accumulate, they press down on the corrugated hood, causing it to collapse and resulting in damage. Alternatively, if the corrugated cover is in its final folded position, excessive contaminants may have accumulated on its surface, causing each section to fail to adhere completely. Consequently, the final section of the corrugated cover may not be fully positioned within the lifting equipment's operating environment. During the opening and folding process, adjacent low-lying areas move closer together, and the connecting rod gradually extends into the sleeve. Because the connecting rod has elastic protrusions on its surface, these protrusions embed together inside the sleeve. During this embedding process, the connecting rod vibrates, causing the corrugated cover to vibrate as well. This vibration dislodges the contaminants deposited on the surface of the corrugated cover, ensuring its effective folding and opening.

[0009] Preferably, the sleeve is provided with a connecting pipe, one end of which is vertically fixed to the middle position of the sleeve. The connecting rod is connected to the sleeve, and a top rod is provided inside the connecting pipe. The upper end of the top rod rests on the support rod provided on the protruding part of the arched part of the corrugated cover. The two low-lying points on the corrugated cover move closer to each other, and at the same time, the protruding part on the corrugated cover gradually rises. Then, the support rod inside the protruding part moves upward and pulls the top rod. At the same time as pulling, the connecting rods move closer to each other and squeeze the gas in the middle position of the sleeve into the connecting pipe. The gas also pushes the top rod, and the top rod supports and opens the corrugated cover on both sides of the protruding part. This pulls and loosens the solidified concrete or soil on the outer surface of the corrugated cover, detaching it from the surface of the corrugated cover. This helps the concrete and soil to fall off, thereby ensuring the effective folding and opening of the corrugated cover.

[0010] Preferably, the lower end of the top rod is slidably and sealed inside the connecting pipe. A lever is symmetrically provided in the middle of the top rod. The levers are arranged in a figure-eight shape on both sides of the connecting pipe. One end of the lever is fixed to the top rod, and the other end of the lever is bent and perpendicular to the inner surface of the corrugated cover. Multiple rubber blocks are fixed to the inner surface of the corrugated cover. During the upward movement of the top rod, the top rod drives the lever to move upward. At the same time, the other end of the lever pushes the rubber blocks. When the rubber blocks are separated from the lever, they vibrate, shaking and loosening the soil and concrete blocks on the outer surface of the corrugated cover, thereby improving the cleaning effect on the pollutants on the outer surface of the corrugated cover.

[0011] Preferably, the rubber block includes a solid part and a hollow part; the hollow part is located below the solid part, and an air inlet pipe and an air outlet pipe are provided inside the hollow part; both the air inlet pipe and the air outlet pipe are equipped with one-way valves, one end of the air inlet pipe is connected to the hollow part, and the other end of the air inlet pipe is connected to the inside of the corrugated cover, one end of the air outlet pipe is connected to the hollow part, and the other end of the air outlet pipe penetrates through the outer surface of the corrugated cover; when the lever is actuated and squeezes the rubber block, because the rubber block has a hollow part inside and is equipped with an air outlet pipe and an air inlet pipe, the hollow part is squeezed when the lever is actuated and squeezes the rubber block, and the gas inside is discharged from the air outlet pipe. The gas impacts the soil or concrete layer covering the outer surface of the corrugated cover, further impacting and cleaning it, which helps the concrete and soil to detach and fall off, thereby ensuring the effective folding and opening of the corrugated cover.

[0012] Preferably, the forward end of the guide block is a symmetrically arranged wedge shape; multiple discharge ports are evenly and symmetrically opened on both sides of the bottom of the chute, the discharge ports are inclined downwards, and the front end of the chute is open; the tunnel excavation environment is harsh, and soil or concrete may fall into the chute, hindering the smooth sliding of the guide block in the chute, and in severe cases blocking the movement of the guide block. Therefore, the forward end of the guide block is set in a wedge shape, and multiple discharge ports are evenly and symmetrically opened on both sides of the bottom of the chute. During the forward movement of the guide block, the front end of the guide block pushes the soil or concrete in the chute towards the discharge port, pushing the soil and concrete out of the chute, thereby helping the guide block to slide smoothly in the chute, and thus facilitating the operator to control the unfolding and folding of the corrugated cover.

[0013] Preferably, the guide plate has multiple fixing holes, which penetrate the guide plate between two adjacent discharge ports, and fixing rods are inserted into the fixing holes. Since the pipe section storage protective cover is located in the external environment and there are no buildings around the tunnel to block the wind, the wind will blow the corrugated cover and fold it when it is windy, exposing the pipe section to the environment. Therefore, fixing rods are set. By setting the fixing rods and inserting them into the fixing holes, the corrugated cover is limited and fixed, so that the corrugated cover stably covers the pipe section. The fixing holes penetrate the guide plate, and the fixing rods are inserted through the fixing holes and embedded in the high platform, which improves the wind resistance of the entire pipe section storage protective cover and prevents it from being blown down by the wind.

[0014] Preferably, the front window of the corrugated cover is symmetrically provided with dustproof cloths. Support strips are sewn on the upper arc part and the inner vertical edge of the dustproof cloths. The two outer edges of the dustproof cloths are fixed to both sides of the front window of the corrugated cover. When setting up the pipe section storage protective cover, the front and rear ends of the cover are in a closed state. However, the front end needs to be designed to allow the corrugated cover to be moved back and opened. Therefore, the front end of the cover needs to be designed to open flexibly. The dustproof cloth is provided for this purpose. Firstly, it can block external pollutants. Secondly, when the corrugated cover is moved back directly, the dustproof cloth is soft and does not need to be lifted before moving the corrugated cover, which is convenient for on-site construction personnel.

[0015] Preferably, the upper arc portion of the dustproof cloth is provided with a magnetic plate on the support strip, which is attached to the arched iron plate at the front window of the corrugated cover. The corrugated cover is provided with a support strip. During the process of pushing the corrugated cover, the pipe section rests on the dustproof part, and then the dustproof cloth is fully opened under the support of the support plate, which facilitates the operation of the pipe section lifting tool. At the same time, after the corrugated cover is closed, the magnetic plate is attached to the arched iron plate at the front window of the corrugated cover, so that the vertical edges of the inner side of the dustproof cloth are attached together, which improves the blocking effect of the dustproof cloth on external environmental pollutants.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The present invention provides a protective cover for storing tunnel pipe sections. By hoisting the pipe section into the cover and then pulling the corrugated cover, the corrugated cover completely covers the pipe section. The corrugated cover blocks pollution from the external environment, such as soil and concrete, thus protecting the pipe section. The corrugated cover and the guide plate are well-matched, with a simple structure, easy operation, and can effectively protect the pipe section and reduce losses.

[0018] 2. The tunnel pipe section storage protective cover of the present invention involves hardening the ground in the area where the pipe section is placed, and then laying raised sleepers on the ground to isolate the pipe section from the ground. This reduces the contamination of the pipe section by ground water stains and also reduces wear on the edges and corners of the pipe section during hoisting, thus better protecting the pipe section. The sleepers laid between the pipe sections also reduce wear on the edges and corners of the pipe section during hoisting. Furthermore, the guide plate is erected on a high platform, which also protects the corrugated cover and reduces the splashing of mud or water stains from the external environment into the chute, which could cause the guide block to move unevenly. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the pipe section storage protective cover in this invention;

[0021] Figure 2 This is a front view of the pipe section storage protective cover in this invention;

[0022] Figure 3 This is a cross-sectional view of the corrugated cover in this invention;

[0023] Figure 4 This is a diagram showing the interaction between the lever and the rubber block in this invention;

[0024] Figure 5 This is a perspective view of the cooperation between the guide block and the guide plate in this invention;

[0025] Figure 6 This is a cross-sectional view of the cooperation between the guide block and the guide plate in this invention;

[0026] Figure 7 This is a diagram showing the fit between the dustproof cloth and the corrugated cover in this invention;

[0027] In the diagram: 1. Corrugated cover; 2. Guide plate; 3. Guide block; 4. Slide groove; 5. Pipe section; 6. Platform; 7. Isolation sleeper; 8. Elevated sleeper; 9. Connecting rod; 10. Support rod; 11. Sleeve; 12. Protrusion; 13. Bayonet; 14. Connecting pipe; 15. Top rod; 16. Pulling rod; 17. Rubber block; 18. Solid part; 19. Hollow part; 20. Air inlet pipe; 21. Air outlet pipe; 22. Discharge port; 23. Fixing hole; 24. Fixing rod; 25. Dustproof cloth; 26. Support strip; 27. Magnetic plate. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] Example 1:

[0030] Reference Figure 1 and Figure 5A protective cover for storing tunnel pipe sections includes a corrugated cover 1 and two guide plates 2. The upper half of the corrugated cover 1 is arched, and the lower half is vertical. A guide block 3 is provided at the lower end of the vertical part. The guide block 3 is T-shaped and slidably connected in a groove 4 opened on the guide plate 2. The cross-section of the groove 4 is adapted to the end face shape of the guide block 3. Pipe sections 5 are placed inside the corrugated cover 1. During tunnel excavation, pipe sections 5 need to be embedded in the excavated culvert to support the earthwork and harden the working environment to facilitate continued excavation. Therefore, pipe sections 5 are prepared around the tunnel opening. The pipe sections 5 are cast from concrete and steel reinforcement. Their end faces are equipped with steel collars for connecting two pipe sections 5. Due to the harsh environment caused by tunnel excavation, there is mud, concrete, or oil from machinery and equipment, which are all contaminants for the pipe sections 5. After prefabrication, pipe section 5 is transported to the excavation site, but it cannot be used immediately upon arrival. Troublesome issues encountered during excavation can delay the lowering of pipe section 5 into the culvert. Furthermore, placing pipe section 5 in harsh environments can affect the sealing of subsequent splicing. Exposure to sunlight can also cause surface cracking. Before use, pipe section 5 is waxed and baked to allow the wax to better penetrate the concrete. Waxing prevents secondary water absorption on the surface, providing lubrication and waterproofing. However, if pipe section 5 is not put into use immediately after waxing and is exposed to harsh conditions, the wax film may be damaged, requiring a second waxing, resulting in unnecessary manpower and financial investment. Therefore, after transporting pipe section 5 to the excavation site, it is hoisted into a protective cover. The cover is opened when needed and used to protect the pipe section 5 when not in use.

[0031] Pipe section 5 is hoisted into the enclosure, and then the corrugated cover 1 is pulled so that the corrugated cover 1 completely covers the pipe section 5. The corrugated cover 1 blocks the pollution from the external environment such as soil and concrete, thus protecting the pipe section 5. The corrugated cover 1 and the guide plate 2 are well-matched, with a simple structure and easy operation, which can effectively protect the pipe section 5 and reduce losses.

[0032] Reference Figure 2The lower surface of the guide plate 2 is provided with a raised platform 6 cut from cement; isolation sleepers 7 are laid between adjacent pipe sections 5, and raised sleepers 8 are provided on the lower surface of the bottom pipe section 5, with the height of the raised sleepers 8 being the same as the height of the raised platform 6; the pipe section 5 itself is heavy, and it is necessary to consider the problem of ground subsidence after the pipe section 5 is stacked, and to prevent soil or water stains from adhering to the pipe section 5, the ground in the area where the pipe section 5 is placed is hardened, and then raised sleepers 8 are laid on the ground to isolate the pipe section 5 from the ground, which can reduce the contamination of the pipe section 5 by ground water stains, and at the same time reduce the wear on the corners of the pipe section 5 when lifting, and better store and protect the pipe section 5. The isolation sleepers 7 laid between the pipe sections 5 also reduce the wear on the corners of the pipe section 5 when lifting; furthermore, the guide plate 2 is erected on the raised platform 6, which also protects the corrugated cover 1 and reduces the splashing of soil or water stains from the external environment into the slide 4, causing the guide block 3 to move unsmoothly.

[0033] Reference Figure 3 A connecting rod 9 is provided between two adjacent low-lying points on the arched part of the corrugated cover 1. An elastic support rod 10 passes through the low-lying point. The support rod 10 is arranged along the arched shape of the corrugated cover 1. One end of the connecting rod 9 is rotatably connected to the support rod 10. A sleeve 11 is provided between the other ends of the connecting rod 9. The connecting rod 9 is slidably connected inside the sleeve 11. An elastic protrusion 12 is provided on the outer ring of the connecting rod 9. A bayonet 13 is provided at the end of the sleeve 11. When the corrugated cover 1 protects the pipe section 5, it blocks external pollutants such as soil or concrete. Pollutants will also accumulate on its surface. After the pollution accumulates, it will press down on the corrugated cover 1, causing it to collapse and resulting in damage. When the corrugated cover 1 is in its final folded and stowed position, due to the excessive amount of contaminants deposited on its surface, each section of the corrugated cover 1 fails to adhere completely together, and the last section 5 of the corrugated cover 1 is not fully placed in the operating environment of the lifting device. During the opening and folding process of the corrugated cover 1, two adjacent low-lying points move closer to each other, and then the connecting rod 9 gradually extends into the sleeve 11. Since the surface of the connecting rod 9 has elastic protrusions 12, the protrusions 12 are embedded in the sleeve 11 together, and during the embedding process, they press against the bayonet 13, causing the connecting rod 9 to vibrate and drive the corrugated cover 1 to vibrate, thereby vibrating off the contaminants deposited on the surface of the corrugated cover 1, thus ensuring the effective folding and opening of the corrugated cover 1.

[0034] Reference Figure 3The sleeve 11 is provided with a connecting pipe 14, one end of which is vertically fixed to the middle position of the sleeve 11. The connecting rod 9 is connected to the sleeve 11. A top rod 15 is provided inside the connecting pipe 14. The upper end of the top rod 15 rests on the support rod 10 provided on the protruding part of the arched part of the corrugated cover 1. The two low-lying points on the corrugated cover 1 approach each other, and at the same time, the protruding part on the corrugated cover 1 gradually rises. Then, the support rod 10 inside the protruding part moves upward and pulls the top rod 15. At the same time as pulling, the connecting rods 9 approach each other and squeeze the gas in the middle position of the sleeve 11 into the connecting pipe 14. The gas also pushes the top rod 15. The top rod 15 supports and opens the corrugated cover 1 on both sides of the protruding part, pulling and loosening the solidified concrete or soil on the outer surface of the corrugated cover 1 and detaching it from the surface of the corrugated cover 1. This helps the concrete and soil to fall off, thereby ensuring the effective folding and opening of the corrugated cover 1.

[0035] Reference Figure 3 and Figure 4 The lower end of the top rod 15 is slidably and sealed inside the connecting pipe 14. A lever 16 is symmetrically provided in the middle of the top rod 15. The lever 16 is arranged in a figure-eight shape on both sides of the connecting pipe 14. One end of the lever 16 is fixed to the top rod 15, and the other end of the lever 16 is bent and perpendicular to the inner surface of the corrugated cover 1. Multiple rubber blocks 17 are fixed to the inner surface of the corrugated cover 1. During the upward movement of the top rod 15, the top rod 15 drives the lever 16 to move upward. At the same time, the other end of the lever 16 pushes the rubber blocks 17. When the rubber blocks 17 are separated from the lever 16, they vibrate, shaking and loosening the soil and concrete blocks on the outer surface of the corrugated cover 1, thereby improving the cleaning effect on the pollutants on the outer surface of the corrugated cover 1.

[0036] Reference Figure 4 The rubber block 17 includes a solid portion 18 and a hollow portion 19; the hollow portion 19 is located below the solid portion 18, and an air inlet pipe 20 and an air outlet pipe 21 are provided inside the hollow portion 19; both the air inlet pipe 20 and the air outlet pipe 21 are equipped with one-way valves, one end of the air inlet pipe 20 is connected to the hollow portion 19, and the other end of the air inlet pipe 20 is connected to the inside of the corrugated cover 1, one end of the air outlet pipe 21 is connected to the hollow portion 19, and the other end of the air outlet pipe 21 penetrates the outer surface of the corrugated cover 1; When the lever 16 is actuated and squeezes the rubber block 17, the hollow part 19 inside the rubber block 17 is squeezed, and the air inside is discharged from the air outlet 21. The air impacts the soil or concrete layer covering the outer surface of the corrugated cover 1, further cleaning it away. This helps the concrete and soil to detach and fall off, thereby ensuring the effective folding and opening of the corrugated cover 1.

[0037] Reference Figure 5 and Figure 6The guide block 3 has a symmetrically arranged wedge shape at its forward end. Multiple discharge ports 22 are evenly and symmetrically opened on both sides of the bottom of the chute 4, with the discharge ports 22 inclined downwards. The front opening of the chute 4 is open. Due to the harsh tunnel excavation environment, soil or concrete may fall into the chute 4, hindering the smooth sliding of the guide block 3 within the chute 4 and, in severe cases, blocking its movement. Therefore, the guide block 3 has a wedge shape at its forward-moving front end, and multiple discharge ports 22 are evenly and symmetrically opened on both sides of the bottom of the chute 4. As the guide block 3 moves forward, its front end pushes the soil or concrete in the chute 4 towards the discharge ports 22, pushing the soil and concrete out of the chute 4. This helps the guide block 3 slide smoothly within the chute 4, thus facilitating the operator's smooth control of the corrugated cover 1's unfolding and folding.

[0038] Reference Figure 1 and Figure 5 Multiple fixing holes 23 are provided on the guide plate 2. The fixing holes 23 penetrate the guide plate 2 between two adjacent discharge ports 22. Fixing rods 24 are inserted into the fixing holes 23. Since the pipe section storage protective cover is set in the external environment and there are no buildings around the tunnel to block the wind, the wind will blow the corrugated cover 1 and fold it when it is windy, exposing the pipe section 5 to the environment. Therefore, fixing rods 24 are set. By setting fixing rods 24 and inserting them into fixing holes 23, the corrugated cover 1 is limited and fixed, so that the corrugated cover 1 stably covers the pipe section 5. The fixing holes 23 penetrate the guide plate 2, and the fixing rods 24 are inserted through the fixing holes 23 and embedded in the high platform 6, which improves the wind resistance of the entire pipe section storage protective cover and prevents it from being blown down by the wind.

[0039] Example 2:

[0040] Reference Figure 7 Compared with Embodiment 1, as another embodiment of the present invention, the front end window of the corrugated cover 1 is symmetrically provided with dustproof cloth 25. The upper arc part and the inner vertical edge of the dustproof cloth 25 are sewn with support strips 26. The two outer edges of the dustproof cloth 25 are fixed to both sides of the front end window of the corrugated cover 1. When setting up the pipe section storage protective cover, the front and rear ends of the cover are in a closed state. However, the front end needs to take into account the rearward movement of the corrugated cover 1. Therefore, the front end of the cover needs to be set to a flexible opening method. The dustproof cloth 25 is set up for this purpose. First, it can block external pollutants from the outside. Second, when the corrugated cover 1 is directly pushed to move backward, the dustproof cloth 25 is soft and there is no need to consider lifting the dustproof cloth 25 and then pushing the corrugated cover 1, which is convenient for on-site construction personnel to operate.

[0041] A magnetic plate 27 is provided on the support strip 26 at the upper arc portion of the dustproof cloth 25. The magnetic plate 27 is attracted to the arched iron plate provided at the front window of the corrugated cover 1. The support strip 26 is provided on the corrugated cover 1. During the process of pushing the corrugated cover 1, the pipe section 5 is pushed against the dustproof part. Then, with the support of the support plate, the dustproof cloth 25 is fully opened, which helps the operation of the pipe section 5 lifting tool. At the same time, after the corrugated cover 1 is closed, the magnetic plate 27 is attracted to the arched iron plate provided at the front window of the corrugated cover 1, so that the vertical edges of the inner side of the dustproof cloth 25 are attached together, which improves the blocking effect of the dustproof cloth 25 on external environmental pollutants.

[0042] Working principle: The pipe section 5 is hoisted into the enclosure, and then the corrugated cover 1 is pulled so that the corrugated cover 1 completely covers the pipe section 5. The corrugated cover 1 blocks the pollution from the external environment such as soil and concrete, thus protecting the pipe section 5. The corrugated cover 1 and the guide plate 2 are well-matched, with a simple structure and easy operation, which can effectively protect the pipe section 5 and reduce losses.

[0043] Since pipe section 5 is heavy, the issue of ground subsidence after stacking it needs to be considered. To prevent soil or water stains from adhering to the pipe section 5, the ground in the area where the pipe section 5 is placed is hardened, and then raised sleepers 8 are laid on the ground to isolate the pipe section 5 from the ground. This reduces the contamination of the pipe section 5 by ground water stains and also reduces wear on the edges and corners of the pipe section 5 during lifting, thus better protecting the pipe section 5 during storage. In addition, isolation sleepers 7 are laid between the pipe sections 5 to reduce wear on the edges and corners of the pipe section 5 during lifting. Furthermore, the guide plate 2 is erected on the high platform 6, which also protects the corrugated cover 1 and reduces the splashing of soil or water stains from the external environment into the chute 4, causing the guide block 3 to move unevenly.

[0044] When the corrugated cover 1 protects the pipe section 5, it blocks external contaminants such as soil or concrete. However, contaminants will also accumulate on its surface. After the contaminants accumulate, they will press down on the corrugated cover 1, causing it to collapse and become damaged. Alternatively, when the corrugated cover 1 is in its final folded position, too many contaminants may have accumulated on its surface, resulting in each section of the corrugated cover 1 not being completely attached together. As a result, the pipe section 5 at the final position of the corrugated cover 1 is not fully placed in the lifting equipment operating environment. During the opening and folding process of the corrugated cover 1, two adjacent low-lying points move closer to each other, and then the connecting rod 9 gradually extends into the sleeve 11. Since the surface of the connecting rod 9 has elastic protrusions 12, the protrusions 12 are embedded in the sleeve 11. During the embedding process, the connecting rod 9 vibrates, which in turn causes the corrugated cover 1 to vibrate. This vibration dislodges the contaminants deposited on the surface of the corrugated cover 1, thereby ensuring the effective folding and opening of the corrugated cover 1.

[0045] Two low-lying points on the corrugated cover 1 move closer to each other, while the raised part on the corrugated cover 1 gradually rises. Then the support rod 10 inside the raised part moves upward and pulls the top rod 15. At the same time as pulling, the connecting rods 9 move closer to each other and squeeze the gas in the middle of the sleeve 11 into the connecting pipe 14. The gas also pushes the top rod 15. The top rod 15 supports and opens the corrugated cover 1 on both sides of the raised part, pulling and loosening the solidified concrete or soil on the outer surface of the corrugated cover 1 and detaching it from the surface of the corrugated cover 1. This helps the concrete and soil to fall off, thereby ensuring the effective folding and opening of the corrugated cover 1.

[0046] During the upward movement of the top rod 15, the top rod 15 drives the lever 16 to move upward. At the same time, the other end of the lever 16 pushes the rubber block 17. When the rubber block 17 is separated from the lever 16, it vibrates, shaking and loosening the mud and concrete blocks on the outer surface of the corrugated cover 1, thereby improving the cleaning effect on the pollutants on the outer surface of the corrugated cover 1.

[0047] When the lever 16 is actuated to compress the rubber block 17, the hollow part 19 inside the rubber block 17 is compressed, and the air outlet 21 and air inlet 20 are provided. Therefore, when the lever is actuated to compress the rubber block 17, the hollow part 19 is compressed, and the air inside is discharged from the air outlet 21. The air impacts the soil or concrete layer covering the outer surface of the corrugated cover 1, further impacting and cleaning it, which helps the concrete and soil to detach and fall off, thereby ensuring the effective folding and opening of the corrugated cover 1.

[0048] The tunnel excavation environment is harsh, and soil or concrete may fall into the chute 4, hindering the smooth sliding of the guide block 3 within the chute 4. In severe cases, it may even block the movement of the guide block 3. To address this, the front end of the guide block 3 is designed in a wedge shape, and multiple discharge ports 22 are evenly and symmetrically opened on both sides of the bottom of the chute 4. As the guide block 3 moves forward, the front end of the guide block 3 pushes the soil or concrete in the chute 4 toward the discharge ports 22, pushing the soil and concrete out of the chute 4. This helps the guide block 3 to slide smoothly within the chute 4, thereby facilitating the operator's smooth control of the unfolding and folding of the corrugated cover 1.

[0049] Since the protective cover for the pipe section is located in the external environment and there are no buildings around the tunnel to block the wind, when it is windy, the wind will blow the corrugated cover 1 and fold it, exposing the pipe section 5 to the environment. To address this, a fixing rod 24 is installed. The fixing rod 24 is inserted into the fixing hole 23 to limit and fix the corrugated cover 1, so that the corrugated cover 1 stably covers the pipe section 5. The fixing hole 23 is set through the guide plate 2, and the fixing rod 24 is inserted through the fixing hole 23 and embedded in the high platform 6, which improves the wind resistance of the entire protective cover for the pipe section and prevents it from collapsing due to the wind.

[0050] When setting up the protective cover for the pipe section storage, both the front and rear ends of the cover are closed. However, the front end needs to be designed to open when the corrugated cover 1 moves backward. Therefore, the front end of the cover needs to be designed with a flexible opening mechanism. For this purpose, a dustproof cloth 25 is provided. Firstly, it can block external pollutants. Secondly, when the corrugated cover 1 is pushed backward, the dustproof cloth 25 is soft and does not need to be lifted before pushing the corrugated cover 1, making it convenient for on-site construction personnel to operate. A support strip 26 is provided on the corrugated cover 1. During the process of pushing the corrugated cover 1, the pipe section 5 rests on the dustproof part. Then, with the support of the support plate, the dustproof cloth 25 is fully opened, which helps the operation of the pipe section 5 lifting tool. At the same time, a magnetic plate 27 is provided. After the corrugated cover 1 is closed, the magnetic plate 27 is attracted to the arched iron plate provided at the front window of the corrugated cover 1, so that the vertical edge of the inner side of the dustproof cloth 25 is attached together, improving the blocking effect of the dustproof cloth 25 on external environmental pollutants.

[0051] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0052] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective cover for storing tunnel sections, characterized in that: It includes a corrugated cover (1) and two guide plates (2); the upper half of the corrugated cover (1) is arched and the lower half is vertical. The lower end of the vertical part is provided with a guide block (3). The guide block (3) is T-shaped and is slidably connected in a groove (4) opened on the guide plate (2). The cross-section of the groove (4) is adapted to the end face shape of the guide block (3). A pipe section (5) is placed inside the corrugated cover (1). A connecting rod (9) is provided between two adjacent low-lying points on the arched part of the corrugated cover (1). An elastic support rod (10) passes through the low-lying point. The support rod (10) is arranged along the arched shape of the corrugated cover (1). One end of the connecting rod (9) is rotatably connected to the support rod (10). A sleeve (11) is provided between the other ends of the connecting rod (9). The connecting rod (9) is slidably connected inside the sleeve (11). An elastic protrusion (12) is provided on the outer ring of the connecting rod (9). A bayonet (13) is provided at the end of the sleeve (11). The sleeve (11) is provided with a connecting pipe (14), one end of the connecting pipe (14) is vertically fixed to the middle position of the sleeve (11), the connecting rod (9) is connected to the sleeve (11), and a top rod (15) is provided inside the connecting pipe (14). The upper end of the top rod (15) is abutted on the support rod (10) provided on the protruding part of the arched part of the corrugated cover (1). The lower end of the top rod (15) is sealed and slidably connected inside the connecting pipe (14). A lever (16) is symmetrically provided in the middle position of the top rod (15). The lever (16) is arranged in a figure-eight shape on both sides of the connecting pipe (14). One end of the lever (16) is fixed to the top rod (15), and the other end of the lever (16) is bent and perpendicular to the inner surface of the corrugated cover (1). Multiple rubber blocks (17) are fixed to the inner surface of the corrugated cover (1). The rubber block (17) includes a solid part (18) and a hollow part (19); the hollow part (19) is located below the solid part (18), and an air inlet pipe (20) and an air outlet pipe (21) are provided inside the hollow part (19); both the air inlet pipe (20) and the air outlet pipe (21) are provided with one-way valves, one end of the air inlet pipe (20) is connected to the hollow part (19), the other end of the air inlet pipe (20) is connected to the corrugated cover (1), one end of the air outlet pipe (21) is connected to the hollow part (19), and the other end of the air outlet pipe (21) penetrates the outer surface of the corrugated cover (1).

2. The tunnel section storage protective cover according to claim 1, characterized in that: The lower surface of the guide plate (2) is provided with a high platform (6) cut from cement; isolation sleepers (7) are laid between adjacent pipe sections (5), and the lower surface of the bottom pipe section (5) is provided with raised sleepers (8), the height of the raised sleepers (8) is the same as the height of the high platform (6).

3. A protective cover for storing tunnel sections according to claim 1, characterized in that: The guide block (3) has a symmetrically arranged wedge shape at its forward end; multiple discharge ports (22) are evenly and symmetrically opened on both sides of the bottom of the chute (4), the discharge ports (22) are inclined downward, and the front end of the chute (4) is open.

4. A protective cover for storing tunnel sections according to claim 2, characterized in that: Multiple fixing holes (23) are provided on the guide plate (2). The fixing holes (23) pass through the guide plate (2) between two adjacent discharge ports (22). Fixing rods (24) are inserted into the fixing holes (23).

5. A protective cover for storing tunnel sections according to claim 1, characterized in that: The front window of the corrugated cover (1) is symmetrically provided with dustproof cloth (25). The upper arc part of the dustproof cloth (25) and the inner vertical edge are sewn with support strips (26). The two outer edges of the dustproof cloth (25) are fixed to the two sides of the front window of the corrugated cover (1).

6. A protective cover for storing tunnel sections according to claim 5, characterized in that: A magnetic plate (27) is provided on the support strip (26) of the upper arc part of the dustproof cloth (25), and the magnetic plate (27) is attached to the arched iron plate provided on the front window of the corrugated cover (1).

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