Temporary well lid for pipeline construction

Abstract

The utility model relates to the technical field of pipeline repair, in particular to a temporary well lid for pipeline construction. Comprising a cover plate, a plurality of sliding grooves are evenly formed in the periphery of the outer edge of the cover plate, sliding plates are elastically and slidably connected into the sliding grooves, the sliding plates are fixedly connected with one end of a pull rope, a vertical rod is concentrically and rotatably connected to the upper end of the cover plate, the other end of the pull rope is fixedly connected with the vertical rod, and the vertical rod is sleeved with a sleeve; warning plates are fixed to the supporting plates. The pipe joint is made of engineering plastic materials, is light in weight and is convenient to open in the follow-up pipeline repairing process.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair, in particular to a temporary manhole cover for pipeline construction. Background Art

[0002] UV-CIPP refers to the trenchless UV curing repair technology for pipelines. UV curing lined hoses have been widely used in underground pipe network repair through UV-CIPP. The construction process is to pull the wet hose into the pipeline to be repaired, fit the material to the inner wall of the original pipeline through inflation, and then cure it through UV and other irradiation to form a pipe in a pipe. Before repairing the pipeline, the manhole covers on both sides of the original pipeline need to be opened, and the staff enters the manhole to carry out pipeline repair operations.

[0003] Since the manhole cover of the inspection well is made of ductile iron and is heavy, and some of the manhole covers are connected to the outer ring in a rotating structure, when the manhole cover is opened to repair the pipeline, if the repair needs to be suspended, the manhole cover needs to be restored, and when the pipeline needs to be repaired again, the manhole cover needs to be opened again.

[0004] During the construction process, in order to reduce labor intensity, when it is necessary to suspend pipeline repair, some construction units keep the wellhead of the inspection well open and set up warning devices on the outside of the wellhead. Some units directly cover the wellhead and do not connect the wellhead to the outer ring. The above two methods of handling the wellhead are mainly to facilitate the subsequent pipeline repair work. However, the above two methods of handling the wellhead have great safety hazards. For this reason, a temporary wellhead cover is needed during the pipeline repair process. The purpose of setting up the temporary wellhead cover is to reduce safety hazards and facilitate the subsequent opening of the inspection wellhead for pipeline repair.

[0005] The patent document with application number CN201920939757.5 discloses a temporary covering device for manhole covers. The device can perform temporary maintenance on manhole covers. The entire maintenance process does not require breaking ground, and no engineering equipment is required to achieve "balancing" of the subsidence manhole cover, so that it is as flush as possible with the road surface, or to increase the height of the manhole cover as much as possible to reduce the discomfort when a vehicle runs over the manhole cover.

[0006] The patent document with application number CN202020835801.0 discloses a temporary manhole cover for municipal drainage pipeline construction with a warning function. The temporary manhole cover is suitable for wellheads of different sizes, is easy to install, has high installation efficiency, simple structure, good stability, can play a warning role, has good warning effect, and is highly safe. The warning device can be hidden and placed, and does not take up space during transportation. When in use, the cover plate is placed on the road surface above the wellhead, and the fixing ring is located in the wellhead to stabilize the cover plate so that the lever moves. When the arc-shaped rack is separated from the end face gear ring, the rotating shaft is rotated. When the rotating shaft rotates, the rotating sleeve rotates accordingly. Under the guidance of the outer edge arc surface of the arc plate, the push rod moves in the direction away from the rotating sleeve, and the tension spring is stretched. When the end of the push rod is close to the inner wall of the wellhead, the pull rod is moved so that the arc-shaped rack is meshed with the end face gear ring. At this time, the rotating shaft is stabilized and the cover plate is stabilized on the wellhead. Then, the rotating rod is rotated by the tripod. When the pin is in a vertical state, the warning sign in the tripod is perpendicular to the cover plate, and the pin is concentric with the blind hole, so that the pin moves downward until the pin is partially inserted into the blind hole. At this time, the rotating rod is stabilized, and the warning sign serves as a warning to pedestrians and vehicles to prevent pedestrians from stepping on and vehicles from running over the cover plate. The temporary manhole cover is provided with a warning sign to warn pedestrians or vehicles, and a structure that can fix the temporary manhole cover in the wellhead is also provided. The structure of the temporary manhole cover is relatively complex and costly, and the warning sign of the temporary manhole cover can only warn in one direction. When the wellhead is located at an intersection, a multi-directional warning device needs to be provided to warn pedestrians or vehicles in different directions. Utility Model Content

[0007] The technical problem to be solved by the utility model is a temporary manhole cover which can warn pedestrians or vehicles in multiple directions. The temporary manhole cover has a simple structure, low manufacturing cost, light weight, and is easy to open for subsequent pipeline repair.

[0008] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0009] A temporary manhole cover for pipeline construction is made of engineering plastics and includes a cover plate. A plurality of slide grooves are evenly distributed on the circumference of the outer edge of the cover plate. Slide plates are elastically slidably connected in the slide grooves. The slide plate is fixedly connected to one end of a pull rope. A vertical pole is coaxially rotatably connected to the upper end of the cover plate. The other end of the pull rope is fixedly connected to the vertical pole. A sleeve is sleeved on the vertical pole. A plurality of support plates are evenly fixed on the outer circumference of the sleeve. Warning plates are fixed on the support plates.

[0010] Specifically, a lug plate is fixed on the upper end of the slide plate, the pull rope is fixedly connected to the lug plate, a long groove corresponding to the lug plate is opened on the cover plate, and the length direction of the long groove is parallel to the sliding direction of the slide plate.

[0011] Specifically, a blocking ring is fixed on the vertical pole, the blocking ring blocks the lower end of the sleeve, and the pull rope is fixedly connected to the vertical pole part below the blocking ring.

[0012] Specifically, a spring is arranged in the slide groove, one end of the spring is fixedly connected to the cover plate, and the other end of the spring is fixedly connected to the slide plate. When the slide plate moves toward the center of the cover plate, the spring is compressed.

[0013] Specifically, the number of the support plates is at least 3.

[0014] Specifically, the number of the chutes is at least four.

[0015] Specifically, the cover plate is provided with a plurality of through holes evenly distributed around the circumference.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model is made of engineering plastic material, is light in weight, and is easy to open during the subsequent pipeline repair process.

[0018] 2. The slide plate can be extended and retracted, and can be applied to wellheads of different sizes, with a wide range of applications.

[0019] 3. Rotating the vertical pole can adjust the length of multiple slides extending out of the cover plates at the same time, making it convenient to install the temporary manhole cover in the outer circle of the original manhole cover.

[0020] 4. Multiple warning plates are set on the vertical poles of this temporary manhole cover, which can warn pedestrians or vehicles in multiple directions at the same time, with high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A 3D view of this temporary manhole cover.

[0022] Figure 2 This is the front view of this temporary manhole cover.

[0023] Figure 3 This is a top view of the temporary manhole cover.

[0024] Figure 4 for Figure 3 AA section view in.

[0025] Figure 5 This is a schematic diagram of the temporary manhole cover blocking the wellhead of the inspection well.

[0026] The names of the parts in the attached drawings are:

[0027] 1 Cover

[0028] 2 Skateboard

[0029] 3 Long slots

[0030] 4 Ear Plate

[0031] 5. Pull rope

[0032] 6 Pole

[0033] 7 Retaining ring

[0034] 8 Casing

[0035] 9 boards

[0036] 10 Warning board

[0037] 11 Spring

[0038] 12 Chute

[0039] 13 Inspection well

[0040] 14 Outer ring

[0041] 15 Through holes. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0043] Example 1: Reference Figure 1-Figure 5 As shown, a temporary manhole cover for pipeline construction is made of engineering plastic. It includes a cover plate 1, and a plurality of slide grooves 12 are evenly distributed on the circumference of the outer edge of the cover plate 1, and the number of the slide grooves 12 is at least four. A slide plate 2 is elastically slidably connected in the slide grooves 12. Specifically, a spring 11 is arranged in the slide groove 12, one end of the spring 11 is fixedly connected to the cover plate 1, and the other end of the spring 11 is fixedly connected to the slide plate 2, and the spring 11 is compressed when the slide plate 2 moves toward the center direction of the cover plate 1.

[0044] The slide plate 2 is fixedly connected to one end of the pull rope 5, the upper end of the cover plate 1 is coaxially rotatably connected to the vertical rod 6, and the other end of the pull rope 5 is fixedly connected to the vertical rod 6. Specifically, the upper end of the slide plate 2 is fixed with an ear plate 4, the pull rope 5 is fixedly connected to the ear plate 4, and the cover plate 1 is provided with a long groove 3 corresponding to the ear plate 4, and the length direction of the long groove 3 is parallel to the sliding direction of the slide plate 2.

[0045] When the vertical rod 6 is rotated, the vertical rod 6 can wrap the pull rope 5, and the pull rope 5 can pull the slide plate 2 to move toward the center of the cover plate 1. At the same time, the spring 11 is compressed. When the vertical rod 6 is rotated, multiple slide plates 2 move toward the center of the cover plate 1 at the same time, which facilitates the installation of the temporary manhole cover in the outer ring 14 of the original manhole cover.

[0046] After the temporary manhole cover is installed in the outer ring 14 of the original manhole cover, the slide plate 2 is blocked by the step of the outer ring 14 of the original manhole cover. After the vertical rod 6 is released, the slide plate 2 is pressed against the outer ring 14 of the original manhole cover under the elastic force of the spring 11, and the cover plate 1 is stabilized in the wellhead of the inspection well 13, and the cover plate 1 and the slide plate 2 block the wellhead of the inspection well 13.

[0047] In this embodiment, the diameter of the cover plate 1 can be set to 600mm. When the slide plate 2 reaches the maximum extension, the diameter of the cover body formed by the slide plate 2 and the cover plate 1 is greater than 800mm. The diameter specifications of common cast iron manhole covers are generally 600mm, 700mm and 800mm. When the slide plate 2 is retracted into the slide groove 12 as a whole, the cover plate 1 can be covered in the outer ring 14 that cooperates with the manhole cover with a diameter of 600mm. By adjusting the extension of the slide plate 2, the temporary manhole cover can be installed in the outer ring 14 that cooperates with the manhole cover with a diameter of 600mm or a diameter of 700mm respectively.

[0048] A sleeve 8 is sleeved on the vertical pole 6. A retaining ring 7 is fixed on the vertical pole 6, and the retaining ring 7 blocks the lower end of the sleeve 8. The pull rope 5 is fixedly connected to the portion of the vertical pole 6 below the retaining ring 7. A plurality of support plates 9 are evenly distributed and fixed on the outer circumference of the sleeve 8, and the number of the support plates 9 is at least 3. A warning plate 10 is fixed on each support plate 9.

[0049] A plurality of warning plates 10 are arranged on the vertical pole 6 of the temporary manhole cover, which can warn pedestrians or vehicles in multiple directions at the same time, and has high safety.

[0050] Embodiment 2: Based on Embodiment 1, refer to Figure 3 As shown, a plurality of through holes 15 are evenly distributed on the circumference of the cover plate 1 .

[0051] After the temporary manhole cover is installed in the outer ring 14 of the original manhole cover, when there is a gap between the cover plate 1 and the outer ring 14 of the original manhole cover, the accumulated water on the road surface can flow into the inspection well 13 through the gap.

[0052] When the slide plate 2 is completely retracted into the slide groove 12 and the cover plate 1 is directly installed into the outer ring 14 of the original manhole cover, the through hole 15 is provided to facilitate the accumulation of water on the road surface to flow into the inspection well 13.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary manhole cover for pipeline construction, made of engineering plastics, comprising a cover plate (1), characterized in that: A plurality of slide grooves (12) are evenly distributed on the circumference of the outer edge of the cover plate (1), and a slide plate (2) is elastically slidably connected in the slide groove (12), and the slide plate (2) is fixedly connected to one end of the pull rope (5). The upper end of the cover plate (1) is coaxially rotatably connected to a vertical pole (6), and the other end of the pull rope (5) is fixedly connected to the vertical pole (6). A sleeve (8) is sleeved on the vertical pole (6), and a plurality of support plates (9) are evenly distributed and fixed on the outer circumference of the sleeve (8), and a warning plate (10) is fixed on each of the support plates (9).

2. A temporary manhole cover for pipeline construction according to claim 1, characterized in that: An ear plate (4) is fixed on the upper end of the slide plate (2), a pull rope (5) is fixedly connected to the ear plate (4), a long groove (3) corresponding to the ear plate (4) is opened on the cover plate (1), and the length direction of the long groove (3) is parallel to the sliding direction of the slide plate (2).

3. A temporary manhole cover for pipeline construction according to claim 1, characterized in that: A blocking ring (7) is fixed on the vertical pole (6), and the blocking ring (7) blocks the lower end of the sleeve (8). The pull rope (5) is fixedly connected to the vertical pole (6) part below the blocking ring (7).

4. A temporary manhole cover for pipeline construction according to claim 1, characterized in that: A spring (11) is arranged in the slide groove (12), one end of the spring (11) is fixedly connected to the cover plate (1), and the other end of the spring (11) is fixedly connected to the slide plate (2). When the slide plate (2) moves toward the center of the cover plate (1), the spring (11) is compressed.

5. A temporary manhole cover for pipeline construction according to claim 1, characterized in that: The number of the support plates (9) is at least 3.

6. A temporary manhole cover for pipeline construction according to claim 1, characterized in that: The number of the slide grooves (12) is at least four.

7. A temporary manhole cover for pipeline construction according to claim 1, characterized in that: The cover plate (1) is provided with a plurality of through holes (15) evenly distributed on the circumference.

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