A type of municipal manhole cover

Abstract

This utility model relates to the field of municipal manhole cover technology, specifically a municipal manhole cover, including a mounting base, cover body, locking assembly, cap, retaining ring, load-bearing retaining ring, connecting post, locking plate, spring, end cap a, slot a, circular groove, and annular slot. This utility model features an ingenious design; the retaining ring and annular slot cooperate, combined with a rubber pad for cushioning, effectively preventing cover body displacement, reducing noise and shaking when vehicles drive over it, and extending the service life of the manhole cover. The cap can conceal the locking structure, reducing the risk of accidental opening by unauthorized personnel, effectively ensuring the safety of underground facilities, pedestrians, and vehicles on the road. Furthermore, the cap can be replaced as needed, allowing for easy identification of the manhole cover's functional type, facilitating municipal operation and maintenance management, and demonstrating strong versatility.

Description

Technical Field

[0001] This utility model relates to the field of municipal manhole cover technology, specifically a municipal manhole cover. Background Technology

[0002] Municipal manhole covers are used to cover inspection wells on roads or sites, ensuring the safety of pedestrians and vehicles, and facilitating the maintenance of underground pipelines. With the continuous improvement of technology and demand, municipal manhole covers are constantly being developed and improved. However, existing manhole covers have many shortcomings. Most existing municipal manhole covers are simply overlapped on the manhole base and connected by only one connecting shaft. When vehicles drive over them, they are prone to displacement and abnormal noise, reducing the service life of the manhole covers. At the same time, existing manhole covers lack locking mechanisms, or the locking mechanisms are exposed, making them easy for unauthorized personnel to open, posing safety hazards. Furthermore, manhole covers are generally marked with text (such as sewage, electricity, tap water, etc.) during production to distinguish the function type of the well. Since the text is fixed during production, manhole covers cannot be mixed and matched later. If the wrong one is installed, it needs to be removed and reinstalled, resulting in poor versatility and certain shortcomings. Summary of the Invention

[0003] The purpose of this utility model is to provide a municipal manhole cover to solve the aforementioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a municipal manhole cover, comprising a mounting base and a cover body, the cover body being hinged to the mounting base, a load-bearing retaining ring being fixedly provided on the inner wall of the mounting base, a retaining ring being fixedly connected to the top surface of the cover body, an annular groove adapted to the retaining ring being provided on the bottom surface of the cover body, a retaining ring being provided on the bottom surface of the load-bearing retaining ring, a circular groove being provided on the top surface of the cover body, a locking assembly being installed in the circular groove, the locking assembly comprising a connecting post, a locking plate, a spring, and an end cap, one end of the locking plate being fixedly connected to the bottom end of the connecting post, the connecting post being vertically and slidably installed through the circular groove of the cover body, the locking plate being located on the bottom surface of the cover body, the spring being sleeved on the connecting post, an end cap being installed on the top end of the connecting post, the spring being located in the circular groove, an irregular groove being provided on the top surface of the end cap, and an opening and closing indicator arrow being provided on the top surface of the end cap, and also including a cap cap, the cap cap being threadedly installed in the circular groove of the cover body.

[0005] Preferably, the top surface of the cap has a 1mm groove with text markings inside, the inner wall of the groove has a rotating slot, and one side of the inner wall of the circular groove has a lifting slot.

[0006] Preferably, rubber pads are provided on the bottom surface of the cover and inside the annular groove, and rubber pads are provided on the top surface of the load-bearing retaining ring and the outer wall of the retaining ring.

[0007] Preferably, the bottom of the cap has a hollow structure, the outer wall of the cap has external threads, and the inner wall of the circular groove has internal threads.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is ingeniously designed, with a locking ring and annular groove working together, combined with a rubber pad for cushioning, to effectively prevent the cover from shifting. It reduces noise and shaking when vehicles run over it, extending the service life of the manhole cover. The cap of the device can conceal the locking structure, reducing the risk of unauthorized opening and effectively ensuring the safety of underground facilities, pedestrians, and vehicles on the road. At the same time, the cap of the device can be replaced as needed, and caps with the required text markings can be replaced to intuitively distinguish the functional type of the manhole cover, facilitating municipal operation and maintenance management and making it highly versatile. Attached Figure Description

[0009] Figure 1 This is an exploded view of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of this utility model from below; Figure 4 This is a schematic diagram of the structure of the cover of this utility model when it is opened; Figure 5 This is a schematic diagram of the cap structure of this utility model.

[0010] In the diagram: 1. Mounting base; 2. Cover body; 3. Locking cover assembly; 4. Cap; 101. Snap ring; 4. Load-bearing retaining ring; 31. Connecting post; 32. Locking plate; 33. Spring; 34. End cap; 1a. Snap groove; 2a. Circular groove; 2b. Annular snap groove. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0012] Please see Figures 1 to 4This utility model provides a technical solution: a municipal manhole cover, including a mounting base 1 and a cover body 2. The cover body 2 is hinged to the mounting base 1. A load-bearing retaining ring 102 is fixedly provided on the inner wall of the mounting base 1. A retaining ring 101 is fixedly connected to the top surface of the cover body 2. An annular groove 2b adapted to the retaining ring 101 is opened on the bottom surface of the cover body 2. A groove 1a is opened on the bottom surface of the load-bearing retaining ring 102. A circular groove 2a is opened on the top surface of the cover body 2. A locking assembly 3 is installed in the circular groove 2a. The locking assembly 3 includes a connecting post 31, a locking plate 32, and a spring. The cover 2 has a spring 33 and an end cap 34. The bottom end of the connecting post 31 is fixedly connected to one end of the locking plate 32. The connecting post 31 is vertically slidably installed in the circular groove 2a of the cover 2. The locking plate 32 is located on the bottom surface of the cover 2. The spring 33 is sleeved on the connecting post 31. The end cap 34 is installed on the top of the connecting post 31. The spring 33 is located in the circular groove 2a. The top surface of the end cap 34 has an irregular groove. The top surface of the end cap 34 is provided with open and close indicator arrows. The cover 4 is also included. The cover 4 is threadedly installed in the circular groove 2a of the cover 2.

[0013] Furthermore, a 1mm groove is provided on the top surface of the cap 4, with text markings inside the groove, a rotating slot on the inner wall of the groove, and a lifting groove on one side of the inner wall of the circular groove 2a.

[0014] Furthermore, rubber pads are provided on the bottom surface of the cover 2 and inside the annular groove 2b, and rubber pads are provided on the top surface of the load-bearing retaining ring 102 and the outer wall of the retaining ring 101.

[0015] Working principle: When the manhole cover is opened, use a tool to separate the cap 4 from the cover body 2. At this time, use a tool that matches the irregular groove on the top of the end cap 34 to press the end cap 34 of the locking assembly 3. At this time, the spring 33 is compressed, and the connecting column 31 moves downward. At this time, the locking plate 32, which is stuck in the slot 1a, separates from the slot 1a. Then, rotate the connecting column 31 to rotate the locking plate 32 out of the slot 1a. At this time, use a lifting tool to insert into the lifting groove on the inner wall of the circular groove 2a to open the cover body 2. Conversely, it will lock the cover body 2. The cap 4 can effectively hide the locking assembly 3, reducing the risk of the device being opened by unauthorized personnel. At the same time, the cap 4 with different fonts on the top (such as sewage, electricity, self, etc.) can be replaced as needed to indicate what type of manhole cover the device belongs to. After the device cover 2 is closed, the retaining ring 101 is engaged in the annular groove 2b of the cover 2. With the addition of the shock-absorbing pad, it can effectively prevent the cover 2 from shifting during use, thus preventing the device from losing its lifespan and causing abnormal noise.

[0016] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A municipal cover, comprising a mounting base (1) and a cover body (2), characterized in that: The cover (2) is hinged to the mounting base (1). A load-bearing retaining ring (102) is fixedly provided on the inner wall of the mounting base (1). A retaining ring (101) is fixedly connected to the top surface of the cover (2). An annular groove (2b) adapted to the retaining ring (101) is opened on the bottom surface of the cover (2). A groove (1a) is opened on the bottom surface of the load-bearing retaining ring (102). A circular groove (2a) is opened on the top surface of the cover (2). A locking cover assembly (3) is installed in the circular groove (2a). The locking cover assembly (3) includes a connecting post (31), a locking plate (32), a spring (33), and an end cap (34). The bottom end of the connecting post (31) is fixedly connected to one end of the locking plate (32). The connecting post (31) is vertically slidably installed in the circular groove (2a) of the cover body (2). The locking plate (32) is located on the bottom surface of the cover body (2). The spring (33) is sleeved on the connecting post (31). The end cap (34) is installed on the top end of the connecting post (31). It also includes a cap (4), which is threaded into a circular groove (2a) in the cover body (2), and the top surface of the cap (4) is provided with text markings.

2. The manhole cover of claim 1, wherein: Rubber pads are provided on the bottom surface of the cover (2) and inside the annular groove (2b), and rubber pads are provided on the top surface of the load-bearing retaining ring (102) and the outer wall of the retaining ring (101).

3. The municipal manhole cover according to claim 1, characterized in that: The spring (33) is located in the circular groove (2a), the top surface of the end cap (34) is provided with an irregular groove, and the top surface of the end cap (34) is provided with an opening and closing indicator arrow.

4. The manhole cover of claim 1, wherein: A lifting groove is provided on one side of the inner wall of the circular groove (2a).

5. The manhole cover of claim 1, wherein: The top surface of the cap (4) has a 1mm groove, the groove has a text mark, and the inner wall of the groove has a rotating slot.

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