Well lid structure

Abstract

The utility model discloses a well lid structure which comprises a lid body, and at least two penetrating holes are formed in the lid body. The outer frame is arranged at the position of a corresponding wellhead on the ground, no less than two annularly-distributed openings are formed in the upper side of the side wall of the outer frame, the openings communicate with the interior of the well and the penetrating hole correspondingly, and the cover body is detachably arranged on the outer frame; the bearing disc is detachably arranged on the lower side of the outer frame, water is borne in the bearing disc, and the bearing disc can bear inflammables entering the well from the through hole and enable the inflammables to enter the borne water; the liquid level sensor is arranged on the bearing disc and used for detecting the liquid level in the bearing disc. According to the utility model, explosion hazards can be effectively reduced, thereby facilitating actual use.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover device technology, and in particular to manhole cover structure. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Manhole covers are the sealed structures at the top of entrances to underground facilities. They are required wherever public utilities such as water supply, telecommunications, electricity, gas, heating, fire protection, and sanitation are installed. Below the manhole cover is usually a sewer system, which typically contains biogas. This biogas is mainly produced by the decomposition of organic waste by microorganisms in an oxygen-deficient environment. If flammable materials are thrown into the manhole, it can easily ignite the biogas, posing a threat to the surrounding environment and personal safety. Therefore, designing a manhole cover structure that reduces the risk of explosion is a problem that needs to be solved by those in this field. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a manhole cover structure that effectively reduces the hazards of explosions.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a manhole cover structure, comprising:

[0006] The cover has at least two perforations.

[0007] An outer frame is installed at the corresponding wellhead on the ground, and at least two openings are provided on the upper side of its side wall in a ring-shaped arrangement. The openings are respectively connected to the inside of the well and the perforation. The cover is detachably installed on the outer frame.

[0008] A support plate, which is detachably installed on the lower side of the outer frame, contains water and is capable of carrying flammable materials that enter the well through the perforation and allowing the flammable materials to enter the water it carries.

[0009] A liquid level sensor is installed on the support plate to detect the liquid level inside the support plate.

[0010] Furthermore, an installation strip is provided on the lower side of the inner wall of the outer frame. The top of the installation strip has a protrusion, and the bearing plate has a groove corresponding to the protrusion. The corresponding protrusion of the installation strip can cooperate with the corresponding groove of the bearing plate, so that the bearing plate is installed on the installation strip.

[0011] Furthermore, it also includes a detachable filter assembly disposed within the support plate, the filter assembly being located in the water contained in the support plate, which is used to block and collect impurities that enter the support plate through the perforations.

[0012] Furthermore, the filtration assembly includes a filter disc disposed on a support plate, the filter disc having multiple filter holes with a diameter smaller than that of flammable materials, the filter holes communicating with the interior of the support plate, allowing water inside the support plate to rise to the top of the filter disc.

[0013] Furthermore, both the top walls of the bearing plate and the filter plate have slopes, which can guide water to drain into the well from the opening when the water level in the bearing plate is too high.

[0014] Furthermore, the outer wall of the outer frame is provided with an outer ring body that contacts the inner wall of the wellhead. There is a gap between the inner wall of the outer ring body and the opening, which is used to allow the perforated opening to connect the inside and outside of the well.

[0015] The beneficial effects of this utility model are reflected in:

[0016] In this invention, the support plate contains water, which can be rainwater or added by workers. When flammable materials are thrown into the well through the perforation, they will enter the water in the support plate. Some of the flammable materials will be extinguished by the water, thus preventing an explosion. Other flammable materials will explode in the water, and the water and the support plate can reduce the damage caused by the explosion, thereby further improving the safety of the manhole cover structure and reducing the risk of explosion. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 This is an assembly diagram of the present invention;

[0019] Figure 3 This is a partial cross-sectional view of the present invention;

[0020] Figure 4 In this utility model Figure 3 A partial view of A shown.

[0021] In the picture:

[0022] 1. Cover body; 11. Cover plate; 12. Perforation; 2. Outer frame; 3. Opening; 4. Mounting strip; 5. Support plate; 6. Filter plate; 7. Filter hole; 8. Inclined surface; 9. Mounting groove; 10. Liquid level sensor. Detailed Implementation

[0023] 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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 scope of protection of the present utility model.

[0024] Please see Figure 1-4 This utility model discloses a manhole cover structure, including a cover body 1, which includes a cover plate 11 and at least two perforations 12 opened on the cover plate 11. An outer frame 2 is installed at the corresponding manhole opening on the ground, and at least two openings 3 are opened on the upper side of its side wall in a ring distribution. The openings 3 are respectively connected to the inside of the manhole and the perforations 12. The cover body 1 is detachably mounted on the outer frame 2. The perforations 12 allow workers to easily insert tools into them and move the cover plate 11. The perforations 12 can cooperate with the openings 3 to connect the outside of the manhole and the inside of the manhole.

[0025] In addition, a pressure sensor with a signal transceiver is installed at the connection between the cover plate 11 and the outer frame 2. When an unauthorized person opens the cover plate 11, the pressure sensor senses the pressure change and, in conjunction with the signal transceiver, sends a signal to the terminal to alert the staff. This device is common knowledge in the field, so its specific structure and working principle will not be described in detail here.

[0026] In one embodiment, the device further includes a support plate 5, which may be made of explosion-proof material and is detachably installed on the lower side of the outer frame 2. The support plate 5 contains water and can carry flammable materials that enter the well through the perforation 12, allowing the flammable materials to enter the water it carries. Rainwater can pass through the perforation 12 and enter the support plate 5. When too much water is collected in the support plate 5, its liquid level rises and it can flow into the well through the opening 3. The support plate 5 has an installation groove 9, and a liquid level sensor 10 for detecting the liquid level in the support plate 5 is installed in the installation groove 9. When the liquid level sensor 10 detects that the water level in the support plate 5 is low, the staff can add water in time.

[0027] In practice, the bearing plate 5 contains water, which can be rainwater entering the bearing plate 5 or water added by staff. When flammable materials are thrown into the well through the perforation 12, they will enter the water in the bearing plate 5. Some of the flammable materials will be extinguished by the water, thus preventing an explosion. Other flammable materials will explode in the water, and the water and bearing plate 5 can reduce the damage caused by the explosion, thereby further improving the safety of the manhole cover structure.

[0028] In one embodiment, an mounting strip 4 is installed on the lower side of the inner wall of the outer frame 2. The top of the mounting strip 4 has a protrusion, and the bearing plate 5 has a groove corresponding to the protrusion. The corresponding protrusion of the mounting strip 4 can cooperate with the corresponding groove of the bearing plate 5, so that the bearing plate 5 is installed on the mounting strip 4.

[0029] In practice, the installation strip 4 and the outer frame 2 are integrally formed structures, and there are no fewer than four of them. They can support the bearing plate 5. When the cover 1 is opened, the bearing plate 5 can play a role in preventing falls, which can effectively prevent people or other objects from falling into the well.

[0030] In one embodiment, the device further includes a detachable filter assembly disposed within the support plate 5, the filter assembly being located in the water supported by the support plate 5.

[0031] With this design, the filter assembly can block and collect impurities that enter the carrier plate 5 through the perforation 12. When the staff opens the cover 1, they can take out the filter assembly and quickly remove the impurities.

[0032] In one embodiment, the filter assembly includes a filter disc 6 mounted on a support disc 5, the filter disc 6 having a plurality of filter holes 7 with a diameter smaller than that of flammable materials.

[0033] In practice, the filter hole 7 is connected to the interior of the support plate 5, so that the water inside the support plate 5 can rise to the top of the filter plate 6. Therefore, when flammable materials enter the interior of the support plate 5, they will be blocked by the filter plate 6, but at this time the flammable materials can still enter the water.

[0034] In one embodiment, both the top walls of the support plate 5 and the filter plate 6 have inclined surfaces 8.

[0035] With this design, the inclined surface 8 can guide water from the opening 3 into the well when the water level in the bearing plate 5 is too high.

[0036] In one embodiment, an outer ring body is provided on the outer wall of the outer frame 2, which contacts the inner wall of the wellhead. There is a gap between the inner wall of the outer ring body and the opening 3. The gap is used to allow the perforation 12 to cooperate with the opening 3 to connect the inside and outside of the well.

[0037] This design allows air and water to pass through opening 3 and perforation 12 normally without the inner wall of the wellhead blocking opening 3.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Additionally, "multiple" refers to two or more.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A manhole cover structure, characterized in that, include: The cover (1) has at least two perforations (12) on it; The outer frame (2) is set at the corresponding wellhead on the ground, and its side wall has at least two openings (3) arranged in a ring on the upper side. The openings (3) are respectively connected to the well and the perforation (12). The cover (1) is detachably set on the outer frame (2). The support plate (5) is detachably installed on the lower side of the outer frame (2). The support plate (5) contains water and is capable of carrying flammable materials that enter the well through the perforation (12) and allowing the flammable materials to enter the water it carries. A liquid level sensor (10) is installed on the support plate (5) to detect the liquid level in the support plate (5).

2. The manhole cover structure according to claim 1, characterized in that: An installation strip (4) is provided on the lower side of the inner wall of the outer frame (2). The top of the installation strip (4) has a protrusion, and the bearing plate (5) has a groove corresponding to the protrusion. The corresponding protrusion of the installation strip (4) can cooperate with the corresponding groove of the bearing plate (5) so that the bearing plate (5) is installed on the installation strip (4).

3. The manhole cover structure according to claim 1, characterized in that: It also includes a detachable filter assembly disposed within the support plate (5), the filter assembly being located in the water carried by the support plate (5), which is used to block and collect impurities entering the support plate (5) through the perforation (12).

4. The manhole cover structure according to claim 3, characterized in that: The filter assembly includes a filter disc (6) disposed on a support plate (5). The filter disc (6) has multiple filter holes (7) with a diameter smaller than that of flammable materials. The filter holes (7) are connected to the interior of the support plate (5), allowing water inside the support plate (5) to rise to the top of the filter disc (6).

5. The manhole cover structure according to claim 3, characterized in that: Both the bearing plate (5) and the filter plate (6) have inclined surfaces (8) on their top walls. These inclined surfaces (8) can guide water to drain into the well from the opening (3) when the water level in the bearing plate (5) is too high.

6. The manhole cover structure according to claim 1, characterized in that: The outer frame (2) has an outer ring body on its outer wall that contacts the inner wall of the wellhead. There is a gap between the inner wall of the outer ring body and the opening (3). This gap is used to allow the perforation (12) to cooperate with the opening (3) to connect the inside and outside of the well.

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