Well lid with clamp spring fixing device

Abstract

The utility model discloses a well lid with a clamp spring fixing device, which relates to the technical field of well lids and particularly comprises a well lid seat and a cover plate arranged in the well lid seat, a cylindrical hole is arranged in the middle of the cover plate, and an installation groove expanding outwards is arranged on the edge of the top of the cylindrical hole. A supporting seat is arranged in the middle of the well lid seat, the side face of the supporting seat is connected with the inner wall of the well lid seat through a plurality of supporting arms, a cylindrical head is arranged at the top of the supporting seat, and a clamping spring groove is formed in the side face of the top of the cylindrical head. The cylindrical head is arranged in the cylindrical hole, the top of the cylindrical head extends into the mounting groove, and at the moment, the clamping spring groove is also located in the mounting groove. During use, after the cover plate is placed in the annular placing groove, the clamp spring is placed in the mounting groove and sleeved in the clamp spring groove in the top of the cylindrical head, and the cover plate is firmly locked in the annular support by the clamp spring; firstly, the clamp spring is easy to detach, connection is very firm through the clamp spring, and when the well lid is impacted, the clamp spring cannot fall off and loosen.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a manhole cover with a clip spring fixing device. Background Art

[0002] Manhole covers are devices used to cover deep wells on roads to prevent people or objects from falling. They are commonly used in green belts, sidewalks, and motorway lanes. Currently, the manhole covers on the market are round and are directly placed on the manhole cover base when in use. When the sewer is blocked, water in the sewer will backflow, often lifting the manhole cover, causing injuries to pedestrians, or even causing the manhole cover to detach from the sewage outlet, leaving the sewage outlet exposed.

[0003] For example, the anti-fall safety manhole cover proposed in the patent application number "202320941797.X" is used by inserting the manhole cover into the fixed ring, and then turning the rotating block by hand to rotate the rotating block in the first rotating groove. At the same time, the rotating block will drive the turntable to rotate in the second rotating groove. When the turntable rotates, the fixed block will move along the corresponding arc groove, and at the same time, the fixed block will drive the corresponding slide rod to move along the slide groove into the manhole. When the turntable rotates to the appropriate position, the slide rod is located on the bottom surface of the fixed ring and is attached to the fixed ring. At the same time, the push-pull groove is connected to the socket, so that one end of the plug block is subjected to the spring rebound force and enters the corresponding socket from the push-pull groove.

[0004] The above structure has multiple parts, which is not only complex and adds extra cost to the manufacturing of the manhole cover, but also inconvenient to install. In actual use, debris will accumulate under the manhole cover, blocking the chute, so the chute may not open after a long time. To this end, we have proposed a manhole cover with a retaining spring fixing device. Utility Model Content

[0005] In view of the shortcomings of the existing manhole cover locking mechanism being complicated and inconvenient to install, the utility model provides a manhole cover with a retaining spring fixing device, which has the advantages of locking the manhole cover only by the retaining spring and having a firm structure and easy to disassemble, thereby solving the problems raised in the above background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A manhole cover with a retaining spring fixing device is designed, comprising a manhole cover seat and a cover plate placed in the manhole cover seat, wherein a cylindrical hole is provided in the middle of the cover plate, and an outward-expanding mounting groove is provided at the top edge of the cylindrical hole;

[0008] A support seat is provided in the middle of the manhole cover seat, the side of the support seat is connected to the inner wall of the manhole cover seat through multiple support arms, a cylindrical head is provided on the top of the support seat, and a retaining spring groove is provided on the top side of the cylindrical head;

[0009] The cylindrical head is placed in the cylindrical hole and the top extends into the installation groove. At this time, the retaining spring groove is also located in the installation groove. A retaining spring is provided in the retaining spring groove. The inner edge of the retaining spring is stuck in the retaining spring groove, and the outer edge extends into the installation groove.

[0010] Preferably, the manhole cover seat includes an annular support, an annular placement groove is provided on the top of the inner edge of the annular support, the cover plate is placed in the annular placement groove, and an annular support ring is provided on the outer bottom of the annular support.

[0011] Preferably, a support ring is provided on the bottom edge of the cover plate, and the support ring is located on the annular placement groove;

[0012] An annular reinforcement seat coaxial with the cylindrical hole is provided at the bottom center of the cover plate. The edge of the annular reinforcement seat is connected to the support ring through multiple support bars, and the support bars are connected to the bottom of the cover plate.

[0013] Preferably, the bottom of the cover plate is provided with a plurality of annular reinforcement rings connected to the support bars.

[0014] Preferably, a step is provided between the cylindrical head and the support seat, and the annular reinforcement seat is seated on the support seat.

[0015] Preferably, there is an angle between the bottom of the support arm and the horizontal plane.

[0016] Compared with the prior art, when the present invention is in use, after the cover plate is placed in the annular placement groove, the retaining spring is placed in the installation groove and sleeved in the retaining spring groove on the top of the cylindrical head, and the cover plate is firmly locked inside the annular support by the retaining spring; first of all, the retaining spring is easy to disassemble, and the connection through the retaining spring is particularly strong. When the manhole cover is impacted, the retaining spring will not fall off or loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the manhole cover placed in the manhole cover seat in the utility model.

[0018] Figure 2 This is a schematic structural diagram of the manhole cover and the manhole cover base after being separated in the utility model.

[0019] Figure 3 It is a structural schematic diagram of the bottom of the cover plate of the utility model.

[0020] Figure 4 It is the main view of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the manhole cover seat of the utility model.

[0022] In the figure: annular support 1, annular support ring 2, cover plate 3, mounting groove 4, cylindrical head 5, annular placement groove 6, support seat 7, support arm 8, retaining spring groove 9, support ring 10, cylindrical hole 11, retaining spring 12, annular reinforcement ring 13, support bar 14, annular reinforcement seat 15. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a manhole cover with a retaining spring fixing device, including a manhole cover seat, the manhole cover seat includes an annular support 1, an annular placement groove 6 is provided on the top of the inner edge of the annular support 1, and the cover plate 3 is placed in the annular placement groove 6. An annular support ring 2 is provided on the outer bottom of the annular support 1, and a plurality of grooves are opened on the annular support ring 2. The annular support ring 2 and the side surfaces of the annular support 1 are connected by a plurality of triangular reinforcing plates, so that the strength between the annular support ring 2 and the annular support 1 can be strengthened.

[0025] like Figure 1 As shown, a cover plate 3 is placed in the manhole cover seat. The present application also makes further improvements to the cover plate, that is, a support ring 10 is provided at the bottom edge of the cover plate 3, and the support ring 10 is located on the annular placement groove 6. An annular reinforcement seat 15 coaxial with the cylindrical hole 11 is provided at the bottom center of the cover plate 3. The edge of the annular reinforcement seat 15 is connected to the support ring 10 through multiple support bars 14, and the support bars 14 are connected to the bottom of the cover plate 3. At the same time, multiple annular reinforcement rings 13 connected to the support bars 14 are provided at the bottom of the cover plate 3. This increases the pressure resistance and bearing capacity of the cover plate 3, and the cover plate will not deform after long-term use.

[0026] The most important thing about this application is that a cylindrical hole 11 is provided in the middle of the cover plate 3, and an outward-expanding mounting groove 4 is provided at the top edge of the cylindrical hole 11, with a stepped structure between the two. A support seat 7 is provided in the middle of the manhole cover seat (annular support 1), and the side of the support seat 7 is connected to the inner wall of the manhole cover seat through multiple support arms 8. A cylindrical head 5 is provided on the top of the support seat 7, and a retaining spring groove 9 is provided on the top side of the cylindrical head 5;

[0027] The cylindrical head 5 is placed in the cylindrical hole 11 and the top thereof extends into the mounting groove 4. At this time, the retaining spring groove 9 is also located in the mounting groove 4. A retaining spring 12 is provided in the retaining spring groove 9. The inner edge of the retaining spring 12 is retained in the retaining spring groove 9, while the outer edge thereof extends into the mounting groove 4.

[0028] Specifically, when the cover plate 3 is placed in the annular placement groove 6, the cylindrical head 5 is then loosely fitted into the cylindrical hole 11. Then, the circlip 12 is stretched open with circlip pliers, and the circlip 12 is placed in the installation groove 4 and sleeved into the circlip groove 9 at the top of the cylindrical head 5. Therefore, when the manhole cover pops up from the manhole cover seat, the cover plate 3 is blocked by the circlip 12, so that the cover plate is firmly locked inside the annular support 1 by the circlip 12;

[0029] The locking method of the retaining spring 12 is also particularly easy to disassemble. When the manhole cover needs to be opened, it is only necessary to use retaining spring pliers to remove the retaining spring from the retaining spring groove. The connection through the retaining spring is also particularly strong. When the manhole cover is impacted, the retaining spring will not fall off or loosen.

[0030] Furthermore, a step is provided between the cylindrical head 5 and the support seat 7, and the annular reinforcement seat 15 is located on the support seat 7. In this way, when the manhole cover is placed in the manhole cover seat, the annular reinforcement seat 15 is supported on the support seat 7, so that the middle position of the manhole cover is also supported, so that the overall strength of the manhole cover is enhanced and the manhole cover is not easily deformed.

[0031] There is an angle between the bottom of the support arm 8 and the horizontal plane, that is, the structure surrounded by multiple support arms is conical. In this way, when the manhole cover is under pressure, the support arm is not easy to bend, thereby improving the pressure resistance.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manhole cover with a retaining spring fixing device, comprising a manhole cover seat and a cover plate (3) placed in the manhole cover seat, characterized in that: A cylindrical hole (11) is provided in the middle of the cover plate (3), and an outwardly expanding mounting groove (4) is provided at the top edge of the cylindrical hole (11); A support seat (7) is provided in the middle of the manhole cover seat, the side of the support seat (7) is connected to the inner wall of the manhole cover seat through a plurality of support arms (8), a columnar head (5) is provided on the top of the support seat (7), and a retaining spring groove (9) is provided on the side of the top of the columnar head (5); The cylindrical head (5) is placed in the cylindrical hole (11) and the top thereof extends into the mounting groove (4). At this time, the retaining spring groove (9) is also located in the mounting groove (4). A retaining spring (12) is provided in the retaining spring groove (9). The inner edge of the retaining spring (12) is retained in the retaining spring groove (9), while the outer edge extends into the mounting groove (4).

2. The manhole cover with a retaining spring fixing device according to claim 1, characterized in that: The manhole cover seat comprises an annular support (1), an annular placement groove (6) is provided at the top of the inner edge of the annular support (1), a cover plate (3) is placed in the annular placement groove (6), and an annular support ring (2) is provided at the outer bottom of the annular support (1).

3. The manhole cover with a retaining spring fixing device according to claim 1, characterized in that: A support ring (10) is provided on the bottom edge of the cover plate (3), and the support ring (10) is seated on the annular placement groove (6); An annular reinforcement seat (15) coaxial with the cylindrical hole (11) is provided at the bottom center of the cover plate (3); the edge of the annular reinforcement seat (15) is connected to the support ring (10) via a plurality of support bars (14); and the support bars (14) are connected to the bottom of the cover plate (3).

4. The manhole cover with a retaining spring fixing device according to claim 3, characterized in that: The bottom of the cover plate (3) is provided with a plurality of annular reinforcement rings (13) connected to the support bars (14).

5. The manhole cover with a retaining spring fixing device according to claim 4, characterized in that: A step is provided between the columnar head (5) and the support seat (7), and the annular reinforcement seat (15) is seated on the support seat (7).

6. The manhole cover with a retaining spring fixing device according to any one of claims 1 to 5, characterized in that: There is an angle between the bottom of the support arm (8) and the horizontal plane.

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