Manhole cover capable of being opened and closed laterally

Abstract

The utility model discloses a lateral opening and closing manhole cover, which comprises a manhole cover main body, a fixed mounting ring is arranged on the circumference of the manhole cover main body, the fixed mounting ring is arranged on a manhole through a fixing bolt array, a display screen is arranged at the center of the manhole cover main body, a switch button is arranged on one side of the display screen, and the switch button is arranged on the other side of the display screen. The manhole cover comprises a manhole cover body, a display screen is arranged on one side of the manhole cover body, a warning lamp is arranged on the other side of the display screen, the two sides of the display screen are each provided with a handle, an electric control box electrically connected with the display screen is arranged below the manhole cover body, and a composite cable interface is electrically connected to a shell of the electric control box. Oxygen concentration and temperature information in the manhole is collected in real time and displayed when needed, a worker can check the information conveniently, when oxygen and temperature in the manhole are in a dangerous interval, an alarm is given in time, the worker is prompted not to open the manhole cover, danger is avoided, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of manhole covers, specifically a manhole cover that opens and closes laterally. Background Technology

[0002] In many ships, bridges, and chemical equipment, in order to facilitate personnel access to the equipment for installation, maintenance, and safety inspection, through holes are usually made at corresponding locations on the equipment. These through holes are called manholes. Manhole covers refer to the general term for cover plates and their fixing accessories that are installed on the manhole and have sealing properties. They can be divided into two main categories according to whether they protrude above the surface of the opening after installation: protruding manhole covers and embedded manhole covers.

[0003] Manhole covers come in a wide variety of types, sizes, materials, and performance. Among them, the side-opening manhole cover is the most common type and is widely used in the shipbuilding industry. However, these side-opening manhole covers generally have a simple structure and only have a simple sealing function. When ships transport goods such as grain and coal, the respiration of the grain consumes oxygen and produces carbon dioxide and heat. The spontaneous combustion of coal also consumes oxygen and produces carbon dioxide and heat. Once the crew opens the side-opening manhole cover, carbon dioxide will pour out, and the crew will be at risk of oxygen deficiency and suffocation. Utility Model Content

[0004] The purpose of this utility model is to provide a side-opening manhole cover to solve the problem mentioned in the background art that the existing side-opening manhole covers have a single function and cannot promptly display the air status on the other side to the staff.

[0005] The technical solution of this utility model is implemented as follows: A side-opening manhole cover includes a manhole cover body, a fixing ring is provided on the circumference of the manhole cover body, the fixing ring is installed on the manhole by an array of fixing bolts, a display screen is provided at the center of the manhole cover body, a switch button is provided on one side of the display screen, a warning light is provided on the other side of the display screen, a handle is provided on each side of the display screen, an electrical control box electrically connected to the display screen is provided below the manhole cover body, a composite cable interface is electrically connected to the housing of the electrical control box, and the electrical control box is electrically connected to multiple temperature sensors and oxygen concentration detection sensors.

[0006] Preferably, the handle is rotatably connected to the manhole cover body via a pivot.

[0007] Preferably, a junction box is installed between the electrical control box and the temperature sensor and the oxygen concentration detection sensor.

[0008] Preferably, the electrical control box includes a sealed housing fixedly connected to the main body of the manhole cover, and the sealed housing is provided with a circuit protection circuit electrically connected to the composite cable interface. The circuit protection circuit is electrically connected to the microprocessor through a power supply box.

[0009] Preferably, the display screen, the switch button, and the warning light are all electrically connected to the microprocessor.

[0010] Preferably, the number of temperature sensors and oxygen concentration detection sensors is no less than three.

[0011] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0012] This type of side-opening manhole cover can use the ship's own power to collect real-time information on oxygen concentration and temperature inside the manhole, and display it when needed for easy viewing by staff. When the oxygen and temperature inside the manhole are in a dangerous range, an alarm will be issued in time to remind staff not to open the manhole cover to avoid danger and improve safety. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is an internal structural view of the electrical control box of this utility model.

[0017] The components include: 1. Manhole cover body; 2. Fixing ring; 3. Handle; 4. Display screen; 5. Switch button; 6. Warning light; 7. Fixing bolt array; 8. Electrical control box; 9. Composite cable interface; 10. Junction box; 11. Temperature sensor; 12. Oxygen concentration detection sensor; 801. Sealed housing; 802. Circuit protection circuit; 803. Power supply box; 804. Microprocessor. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figure 1 and Figure 2 A side-opening manhole cover includes a manhole cover body 1, a fixing ring 2 on the circumference of the manhole cover body 1, the fixing ring 2 being mounted on the manhole via a fixing bolt array 7, a display screen 4 at the center of the manhole cover body 1, a switch button 5 on one side of the display screen 4, a warning light 6 on the other side of the display screen 4, a handle 3 on each side of the display screen 4, an electrical control box 8 electrically connected to the display screen 4 at the bottom of the manhole cover body 1, a composite cable interface 9 electrically connected to the housing of the electrical control box 8, and the electrical control box 8 being electrically connected to multiple temperature sensors 11 and an oxygen concentration detection sensor 12.

[0020] See Figure 2 The handle 3 is rotatably connected to the manhole cover body 1 via a pivot. This design makes it easier for staff to open and close the manhole cover body 1 using the handle 3, thus improving convenience.

[0021] See Figure 1 A junction box 10 is installed between the electrical control box 8 and the temperature sensor 11 and the oxygen concentration detection sensor 12. This arrangement makes it easy to adjust the cable length of each temperature sensor 11 and oxygen concentration detection sensor 12 using the junction box 10, thereby allowing multiple temperature sensors 11 and oxygen concentration detection sensors 12 to be installed in different positions inside the manhole, improving detection accuracy.

[0022] See Figure 3 The electrical control box 8 includes a sealed housing 801 fixedly connected to the manhole cover body 1. The sealed housing 801 is provided with a circuit protection circuit 802 electrically connected to the composite cable interface 9. The circuit protection circuit 802 is electrically connected to the microprocessor 804 through the power supply box 803. This configuration can protect the incoming power through the circuit protection circuit 802. At the same time, the microprocessor 804 can process the data collected by multiple temperature sensors 11 and oxygen concentration detection sensors 12 to determine whether the air condition inside the manhole is normal.

[0023] See Figure 1 , Figure 2 and Figure 3The display screen 4, switch button 5, and warning light 6 are all electrically connected to the microprocessor 804. This configuration allows the display screen 4 to display the detection results of the control box 8 in real time, making it convenient for staff to view. When the oxygen and temperature inside the manhole are in the danger zone, the warning light 6 can issue an alarm in a timely and continuous manner to remind staff not to open the manhole cover to avoid danger.

[0024] See Figure 1 The number of temperature sensors 11 and oxygen concentration detection sensors 12 is no less than three. This arrangement facilitates the simultaneous detection of temperature and oxygen concentration information at multiple locations inside the manhole, thereby improving detection accuracy.

[0025] Working principle: When using this device, firstly, the electrical control box 8 is connected to the ship's power grid via the composite cable interface 9, and the ship's power grid supplies power to this device. Then, the device is installed at the end of the manhole using the fixing bolt array 7 to provide a seal for the manhole. During ship operation, the temperature sensor 11 and the oxygen concentration detection sensor 12 can collect the temperature and oxygen content information inside the manhole in real time. After processing by the electrical control box 8, the detection results are displayed on the display screen 4. When the staff needs to open the manhole, they can turn on the display screen 4 through the switch button 5 to observe whether the air condition inside the manhole is normal. When the oxygen and temperature inside the manhole are in the danger zone, the warning light 6 can issue an alarm in a timely and continuous manner to remind the staff not to open the manhole cover to avoid danger.

[0026] In this specification, the terms "connection," "installation," "fixing," and "setting" are interpreted broadly. For example, "connection" can mean a fixed connection or an indirect connection via an intermediate component without affecting the relationship between components and the technical effect. It can also mean an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this utility model or utility model according to the specific circumstances. In this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this utility model and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation or to be constructed and operated in a specific orientation. Finally, it should be noted that when describing the position of each component and the matching relationship between them, this utility model usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions and matching relationships also apply to other components / other pairs of components.

[0027] 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 that opens and closes laterally, characterized in that: The system includes a manhole cover body (1), a fixing ring (2) is provided on the circumference of the manhole cover body (1), the fixing ring (2) is installed on the manhole by a fixing bolt array (7), a display screen (4) is provided at the center of the manhole cover body (1), a switch button (5) is provided on one side of the display screen (4), a warning light (6) is provided on the other side of the display screen (4), a handle (3) is provided on each side of the display screen (4), an electrical control box (8) is provided below the manhole cover body (1) and is electrically connected to the display screen (4), a composite cable interface (9) is electrically connected to the housing of the electrical control box (8), and the electrical control box (8) is electrically connected to multiple temperature sensors (11) and oxygen concentration detection sensors (12).

2. A manhole cover that opens and closes laterally according to claim 1, characterized in that: The handle (3) is rotatably connected to the manhole cover body (1) via a rotating shaft.

3. A manhole cover that opens and closes laterally according to claim 1, characterized in that: A junction box (10) is installed between the electrical control box (8) and the temperature sensor (11) and the oxygen concentration detection sensor (12).

4. A manhole cover that opens and closes laterally according to claim 1, characterized in that: The electrical control box (8) includes a sealed housing (801) fixedly connected to the manhole cover body (1). The sealed housing (801) is provided with a circuit protection circuit (802) electrically connected to the composite cable interface (9). The circuit protection circuit (802) is electrically connected to the microprocessor (804) through the power supply box (803).

5. A manhole cover that opens and closes laterally according to claim 4, characterized in that: The display screen (4), the switch button (5), and the warning light (6) are all electrically connected to the microprocessor (804).

6. A manhole cover that opens and closes laterally according to claim 1, characterized in that: The number of temperature sensors (11) and oxygen concentration detection sensors (12) is not less than three.

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