Spinning sealing structure of quick-closing manhole door

Abstract

The utility model relates to the technical field of manhole doors, and provides a spinning sealing structure of a fast-closing manhole door, which comprises a door frame, a connecting mechanism is arranged on the side surface of the door frame, the top of the door frame is connected with a door leaf through the connecting mechanism, a sealing ring is attached to the inner wall of the door leaf, the bottom of the door leaf is fixedly connected with a fixing column, and the fixing column is fixedly connected with the door leaf. A threaded rod is meshed with the surface of the door frame, a rotary knob is fixedly connected to the surface of the threaded rod, a mounting plate is fixedly connected to the position, located on the side of the threaded rod, of the surface of the door frame, and a handle is fixedly connected to the top of the leaf door. By arranging the sealing rings, a worker can manually plug the two sealing rings into a groove in the top of the door frame and a groove in the bottom of the door leaf correspondingly, when the door leaf is closed, the two sealing rings abut against the contact face of the door leaf and the door frame, and therefore the purpose of enhancing the sealing performance of the manhole door is achieved; and a series of problems caused by the sealing problem during use of the manhole door are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole doors, in particular to a spinning sealing structure of a quick-closing manhole door. Background Art

[0002] A manhole door is a door used for inspection openings or personnel entrances and exits in facilities such as pipelines, equipment, and storage tanks. It is mainly composed of door leaves, door frames, specific gravity blocks, thermal insulation pads, etc., and can be customized according to needs to meet the usage requirements in different scenarios. The design of the manhole door takes into account the safe entry and exit of personnel to facilitate installation, maintenance and safety inspections.

[0003] In addition, manhole door also refers to a manhole cover used on the road surface to cover the pipelines and facilities below. It is usually made of iron, steel, concrete and other materials. The structure and size of manhole doors are generally standardized and can be selected or designed by referring to relevant manuals.

[0004] After searching, the existing patent (Announcement No.: CN 215250975 U) discloses a manhole door, which relates to the technical field of inspection doors and solves the technical problem of the inconvenience of long-term use of hinged doors caused by dusty environments in related technologies. The manhole door is installed on the cover plate, which is provided with a manhole opening. The manhole door includes an eccentric shaft, a handle, a manhole cover and two support frames. The eccentric shaft is provided with a first eccentric shaft body, a main rod and a second eccentric shaft body in sequence along the axial direction. The central axis of the first eccentric shaft body and the central axis of the second eccentric shaft body are both spaced from the central axis of the outer contour of the main rod. The handle is fixedly connected to the eccentric shaft, the main rod, the manhole cover and the cover plate are stacked in sequence, and the two support frames are respectively arranged on opposite sides of the manhole opening, and one end of the support frame is fixed to the cover plate. The first eccentric shaft body is rotatably arranged on one of the support frames, and the second eccentric shaft body is rotatably arranged on the other support frame. It has a locked state and a loosened state without hinges, which improves the problem of long-term inconvenience caused by dusty environments and increases service life.

[0005] However, in the above solution, the manhole door is not provided with a sealing structure, which may result in poor sealing performance and may cause a series of problems due to sealing problems during use.

[0006] In view of this, the utility model proposes a spinning sealing structure for a quick-closing manhole door. Utility Model Content

[0007] The utility model provides a spinning sealing structure for a quick-closing manhole door, which solves the problems of manhole doors in related technologies.

[0008] The technical solution of the utility model is as follows: a rotary sealing structure for a quick-closing manhole door, comprising a door frame, a connecting mechanism is arranged on the side of the door frame, a leaf door is connected to the top of the door frame through the connecting mechanism, a sealing ring is fitted on the inner wall of the leaf door, a fixing column is fixedly connected to the bottom of the leaf door, a threaded rod is meshed on the surface of the door frame, a knob is fixedly connected to the surface of the threaded rod, a mounting plate is fixedly connected to the surface of the door frame located on the side of the threaded rod, and a handle is fixedly connected to the top of the leaf door.

[0009] Preferably, the connecting mechanism includes a rotating shaft and a connecting rod.

[0010] Preferably, two groups of the connecting mechanisms are provided, and the two groups of the connecting mechanisms are both provided on one side of the door frame.

[0011] Preferably, two groups of sealing rings are provided, and grooves matching the sealing rings are provided at the top of the door frame and the bottom of the door.

[0012] Preferably, three groups of the fixing columns are provided, and three groups of round holes matching the fixing columns are opened on the top of the door frame.

[0013] Preferably, the threaded rods and knobs are provided in three groups, and the surfaces of the three groups of fixing columns and the surfaces of the door frames are provided with mounting holes matching the threaded rods.

[0014] Preferably, a rotating shaft is fixedly connected to the side surface of the door frame, and a connecting rod is rotatably connected to the surface of the rotating shaft.

[0015] Preferably, the connecting rod is arranged in an "I" shape, and the connecting rod is fixedly connected to the door.

[0016] The working principle and beneficial effects of the utility model are:

[0017] In the utility model, by providing sealing rings, the staff can manually insert the two sets of sealing rings into the grooves at the top of the door frame and the grooves at the bottom of the leaf door respectively. When the leaf door is closed, the two sets of sealing rings will abut against the contact surface between the leaf door and the door frame, thereby achieving the purpose of strengthening the sealing of the manhole door and preventing a series of problems from occurring due to sealing problems when the manhole door is in use;

[0018] In the utility model, by setting the fixing columns, the staff can close the door so that the three groups of fixing columns are embedded in the three groups of round holes on the top of the door frame, and then respectively turn the three groups of knobs to drive the three groups of threaded rods to slide inward. When the three groups of threaded rods slide to the inside of the installation holes embedded in the surfaces of the three groups of fixing columns, the purpose of fixing the door can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the connecting rod structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the groove structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the sealing ring structure of the utility model.

[0025] In the figure: 1. door frame; 2. connecting mechanism; 21. rotating shaft; 22. connecting rod; 3. door; 4. sealing ring; 5. fixing column; 6. threaded rod; 7. knob; 8. mounting plate; 9. handle. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0027] A preferred embodiment of the spinning seal structure of a quick-closing manhole door provided by the utility model is as follows: Figures 1 to 5 As shown: a spin-pressed sealing structure for a quick-closing manhole door, comprising a door frame 1, a connecting mechanism 2 is arranged on the side of the door frame 1, a leaf door 3 is connected to the top of the door frame 1 through the connecting mechanism 2, a sealing ring 4 is fitted to the inner wall of the leaf door 3, a fixing column 5 is fixedly connected to the bottom of the leaf door 3, a threaded rod 6 is meshed on the surface of the door frame 1, a knob 7 is fixedly connected to the surface of the threaded rod 6, a mounting plate 8 is fixedly connected to the surface of the door frame 1 located on the side of the threaded rod 6, and a handle 9 is fixedly connected to the top of the leaf door 3.

[0028] In this embodiment, two groups of connection mechanisms 2 are provided, and both groups of connection mechanisms 2 are provided on one side of the door frame 1 . By providing two groups of connection mechanisms 2 , the door 3 can be connected to the door frame 1 .

[0029] In this embodiment, two groups of sealing rings 4 are provided, and grooves matching the sealing rings 4 are provided at the top of the door frame 1 and the bottom of the leaf door 3. The two groups of sealing rings 4 are respectively embedded into the grooves at the top of the door frame 1 and the bottom of the leaf door 3, and then the leaf door 3 is rotated. When the leaf door 3 is closed, the two groups of sealing rings 4 will fit fully and press the contact surfaces of the leaf door 3 and the door frame 1 without leaving any gap, thereby achieving the purpose of strengthening the sealing of the manhole door and preventing a series of problems caused by sealing problems when the manhole door is in use.

[0030] In this embodiment, three groups of fixing columns 5 are provided, and three groups of round holes matching the fixing columns 5 are opened on the top of the door frame 1. Because the three groups of fixing columns 5 are fixedly connected to the leaf door 3, when the leaf door 3 is closed, the three groups of fixing columns 5 will be driven to be respectively embedded into the three groups of round holes on the top of the door frame 1, so that the mounting holes on the surfaces of the three groups of fixing columns 5 coincide with the mounting holes on the surface of the door frame 1.

[0031] In this embodiment, three groups of threaded rods 6 and knobs 7 are provided, and the surfaces of the three groups of fixing columns 5 and the surface of the door frame 1 are provided with mounting holes matching the threaded rods 6. When the mounting holes on the surfaces of the three groups of fixing columns 5 coincide with the mounting holes on the surface of the door frame 1, the staff can manually control the three groups of knobs 7 to drive the three groups of threaded rods 6 to rotate and slide toward the mounting holes. When the threaded rods 6 are embedded in the mounting holes on the surfaces of the fixing columns 5, the fixing columns 5 can be fixed, thereby fixing the door 3. Example 2

[0032] On the basis of Example 1, a preferred embodiment of the spinning seal structure of a quick-closing manhole door provided by the utility model is as follows: Figures 1 to 5 As shown: the connection mechanism 2 includes a rotating shaft 21 and a connecting rod 22. The rotating shaft 21 is fixedly connected to the side of the door frame 1, and the connecting rod 22 is rotatably connected to the surface of the rotating shaft 21.

[0033] In this embodiment, the connecting rod 22 is arranged in an "I" shape, and the connecting rod 22 is fixedly connected to the door 3. Because the connecting rod 22 is fixedly connected to the door 3, when the door 3 is rotated, the connecting rod 22 will rotate around the rotating shaft 21 and play a certain limiting role on the door 3, so that the door 3 rotates around the rotating shaft 21.

[0034] The working principle and use process of the utility model are as follows: first, two sets of sealing rings 4 are respectively embedded into the groove inside the top of the door frame 1 and the groove inside the bottom of the leaf door 3, and then the leaf door 3 is rotated. When the leaf door 3 is closed, the two sets of sealing rings 4 will be fully fitted and the contact surface of the leaf door 3 and the door frame 1 will be pressed against each other without leaving any gap, thereby achieving the purpose of strengthening the sealing of the manhole door and preventing a series of problems caused by sealing problems when the manhole door is in use;

[0035] Because the three groups of fixing columns 5 are all fixedly connected to the leaf door 3, when the leaf door 3 is closed, the three groups of fixing columns 5 will be driven to be respectively embedded into the three groups of circular holes on the top of the door frame 1, so that the mounting holes on the surfaces of the three groups of fixing columns 5 coincide with the mounting holes on the surface of the door frame 1. At this time, the staff can manually control the three groups of knobs 7 to drive the three groups of threaded rods 6 to rotate and slide toward the mounting holes. When the threaded rods 6 are embedded into the mounting holes on the surfaces of the fixing columns 5, the fixing columns 5 can be fixed, thereby fixing the leaf door 3.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spinning seal structure for a quick-closing manhole door, comprising a door frame (1), characterized in that: A connecting mechanism (2) is provided on the side of the door frame (1); a leaf door (3) is connected to the top of the door frame (1) via the connecting mechanism (2); a sealing ring (4) is attached to the inner wall of the leaf door (3); a fixing column (5) is fixedly connected to the bottom of the leaf door (3); a threaded rod (6) is meshed on the surface of the door frame (1); a knob (7) is fixedly connected to the surface of the threaded rod (6); a mounting plate (8) is fixedly connected to the surface of the door frame (1) located on the side of the threaded rod (6); and a handle (9) is fixedly connected to the top of the leaf door (3).

2. The spinning seal structure of a quick-closing manhole door according to claim 1, characterized in that: The connecting mechanism (2) comprises a rotating shaft (21) and a connecting rod (22).

3. The spinning seal structure of a quick-closing manhole door according to claim 1, characterized in that: Two groups of the connection mechanisms (2) are provided, and the two groups of the connection mechanisms (2) are both provided on one side of the door frame (1).

4. The spinning seal structure of a quick-closing manhole door according to claim 1, characterized in that: Two groups of sealing rings (4) are provided, and grooves matching the sealing rings (4) are provided at the top of the door frame (1) and the bottom of the door (3).

5. The spinning seal structure of a quick-closing manhole door according to claim 1, characterized in that: Three groups of the fixing columns (5) are provided, and three groups of round holes matching the fixing columns (5) are provided on the top of the door frame (1).

6. The spinning seal structure of a quick-closing manhole door according to claim 1, characterized in that: The threaded rods (6) and knobs (7) are provided in three groups, and the surfaces of the three groups of fixing columns (5) and the surface of the door frame (1) are provided with mounting holes matching the threaded rods (6).

7. The spinning seal structure of a quick-closing manhole door according to claim 2, characterized in that: A rotating shaft (21) is fixedly connected to the side surface of the door frame (1), and a connecting rod (22) is rotatably connected to the surface of the rotating shaft (21).

8. The spinning seal structure of a quick-closing manhole door according to claim 7, characterized in that: The connecting rod (22) is arranged in an "I" shape, and the connecting rod (22) is fixedly connected to the door (3).

Images