CN221503240U - Wellhead protection device for deep underground sealed well - Google Patents

Abstract

The utility model relates to a wellhead protection device for a deep seal well, which comprises a well cover arranged at the upper end of a well body, wherein a sealing box is arranged at the upper end of the well cover, a first rotating shaft is arranged at the lower end of the sealing box, a second rotating shaft is arranged at the lower end of the first rotating shaft, the lower end of the well cover is fixedly connected with an arc-shaped air guide surface, the outer end of the first rotating shaft is fixedly connected with a fan blade, and the outer end of the second rotating shaft is symmetrically and fixedly connected with a plurality of flexible streamers.

Description

Wellhead protection device for deep underground sealed well

Technical Field

The utility model relates to a wellhead protection device for a deep underground sealed well, in particular to a wellhead protection device for a deep underground sealed well applied in the field of mining mechanisms.

Background Art

A mine is a general term for the shafts, chambers, equipment, ground buildings and structures that form an underground coal mine production system. Sometimes, the inclined shafts, vertical shafts, and horizontal shafts in the underground development of mines are also called mines. The size of the mine field, the production capacity and service life of each mine are one of the key issues that must be solved in the mine design. Abandoned mines need to be sealed in a standardized manner to avoid potential safety hazards.

In order to solve the problem of abandoned mines needing to be sealed in a standardized manner to avoid potential safety hazards, the wellheads of deep underground sealed wells in the market are designed with protective manhole covers, which have a certain market share.

The wellheads of existing deep sealed wells are under pressure all year round, so there is a risk that the protective well cover will be broken when the pressure surges. Therefore, it is necessary to design a wellhead protection device for deep sealed wells with a pressure dispersion mechanism to solve the above problem.

Utility Model Content

In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the wellhead of the existing deep sealed well is under pressure all year round, so there is a risk that the protective well cover will be broken when the pressure surges.

In order to solve the above problems, the utility model provides a wellhead protection device for a deep sealed well, including a manhole cover installed at the upper end of the well body, a sealing box is installed at the upper end of the manhole cover, a first rotating shaft is installed at the lower end of the sealing box, a second rotating shaft is installed at the lower end of the first rotating shaft, an arc-shaped air guide surface is fixedly connected to the lower end of the manhole cover, the arc-shaped air guide surface extends into the sealing box, the first rotating shaft passes through the arc-shaped air guide surface, the outer end of the first rotating shaft is fixedly connected to a fan blade, and the outer end of the second rotating shaft is symmetrically fixedly connected to a plurality of flexible ribbons.

In the wellhead protection device of the above-mentioned deep sealed well, this scheme plays a protective role by setting a manhole cover on the well body, and drives the fan blades to rotate to evenly distribute the air pressure at the well mouth, and the flexible ribbon outside the second rotation axis floats along with the rotation of the second rotation axis. The rising air pressure is stably transported out of the well body through the slope surface of the arc-shaped air guide surface, thereby avoiding the risk of local air pressure accumulation in the well body causing danger to the well body.

As a further improvement of the present application, a motor is fixedly connected to the inner end of the sealing box, and an output end of the motor is connected to the first rotating shaft.

As a further improvement of the present application, a warning sign is fixedly connected to the front end of the sealing box.

As a further improvement of the present application, openings are symmetrically provided at the upper end of the manhole cover, and a bearing is installed between the first rotation axis and the second rotation axis.

As another improvement of the present application, both left and right ends of the bearing member are rotatably connected with transversely mounted clamping plates, and the two transversely mounted clamping plates are symmetrically arranged.

As another improved supplement of the present application, one end of the transversely mounted clamping plate away from the bearing member is fixedly connected with an inclined clamping surface, and the inclined clamping surface abuts against the inner wall of the well body.

In summary, this solution plays a protective role by setting a manhole cover on the well body, and drives the fan blades to rotate to evenly distribute the air pressure at the well mouth, and the flexible ribbon outside the second rotating shaft floats along with the rotation of the second rotating shaft, and the rising air pressure is stably transported out of the well body through the slope surface of the arc-shaped air guide surface, thereby avoiding the risk of local air pressure accumulation in the well body causing danger to the well body, which is beneficial to ensuring the safety of the well body. At the same time, a rotating horizontal pallet can be set between the first rotating shaft and the second rotating shaft to ensure the stability of the rotation paths of the two, thereby ensuring their operating efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front cross-sectional view of a well body according to a first embodiment of the present application;

FIG2 is a front view of a warning sign according to a second embodiment of the present application;

FIG3 is a partial enlarged view of the well body of the first embodiment of the present application.

Description of the numbers in the figure:

1. Sealing box; 2. Motor; 3. Manhole cover; 4. Arc-shaped air guide surface; 5. Fan blades; 6. First rotation axis; 7. Manhole body; 8. Second rotation axis; 9. Flexible streamer; 10. Bearing; 11. Horizontally mounted card plate; 12. Oblique card surface; 13. Warning sign; 14. Opening.

DETAILED DESCRIPTION

Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

The first implementation method:

Figure 2-3 shows a manhole cover 3 installed at the upper end of a well body 7, a sealing box 1 is installed at the upper end of the manhole cover 3, a first rotating shaft 6 is installed at the lower end of the sealing box 1, a second rotating shaft 8 is installed at the lower end of the first rotating shaft 6, a curved air guide surface 4 is fixedly connected to the lower end of the manhole cover 3, the curved air guide surface 4 extends into the sealing box 1, the first rotating shaft 6 passes through the curved air guide surface 4, a fan blade 5 is fixedly connected to the outer end of the first rotating shaft 6, and a plurality of flexible streamers 9 are symmetrically fixedly connected to the outer end of the second rotating shaft 8.

Figure 1-3 shows that the inner end of the sealing box 1 is fixedly connected to the motor 2, the output end of the motor 2 is connected to the first rotating shaft 6, the front end of the sealing box 1 is fixedly connected to the warning sign 13, the upper end of the manhole cover 3 is symmetrically provided with openings 14, and a bearing 10 is installed between the first rotating shaft 6 and the second rotating shaft 8.

Figures 1-3 show that the present solution plays a protective role by setting a manhole cover 3 on the well body 7, and extending a first rotating shaft 6 in the well body 7 to use a motor 2 to drive the fan blades 5 to rotate so that the air pressure at the mouth of the well body 7 is evenly distributed, and a second rotating shaft 8 of a deeper length is extended under the first rotating shaft 6. The flexible streamer 9 outside the second rotating shaft 8 floats along with the rotation of the second rotating shaft 8, so that the air pressure in the well body 7 is stable and gradually rises. The rising air pressure is stably transported to the openings 14 on both sides of the manhole cover 3 through the slope surface of the arc-shaped air guide surface 4 and dispersed out of the well body 7, thereby avoiding the risk of local air pressure accumulation in the well body 7 causing danger to the well body 7, which is beneficial to ensuring the safety of the well body 7. At the same time, a warning sign 13 can be set in front of the sealing box 1 to serve as a warning and prevent idle people from approaching the well body 7.

The second implementation method:

Figure 2 shows that the left and right ends of the bearing member 10 are both rotatably connected with a transverse clamping plate 11, and the two transverse clamping plates 11 are symmetrically arranged. The end of the transverse clamping plate 11 away from the bearing member 10 is fixedly connected with an inclined clamping surface 12, and the inclined clamping surface 12 abuts against the inner wall of the well body 7. At the same time, a rotatable transverse clamping plate 11 can be arranged between the first rotation axis 6 and the second rotation axis 8. When the first rotation axis 6 and the second rotation axis 8 are placed into the well body 7, the two transverse clamping plates 11 fall down until the inclined clamping surface 12 abuts against the inner wall of the well body 7, thereby ensuring the stability of the rotation path of the first rotation axis 6 and the second rotation axis 8, and thus ensuring their operating efficiency.

In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted by this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims (6)

1. A wellhead protection device for a deep sealed well, characterized in that it comprises a well cover (3) installed at the upper end of a well body (7), a sealing box (1) is installed at the upper end of the well cover (3), a first rotating shaft (6) is installed at the lower end of the sealing box (1), a second rotating shaft (8) is installed at the lower end of the first rotating shaft (6), an arc-shaped air guide surface (4) is fixedly connected to the lower end of the well cover (3), the arc-shaped air guide surface (4) extends into the sealing box (1), the first rotating shaft (6) passes through the arc-shaped air guide surface (4), a fan blade (5) is fixedly connected to the outer end of the first rotating shaft (6), and a plurality of flexible streamers (9) are symmetrically fixedly connected to the outer end of the second rotating shaft (8). 2. A wellhead protection device for a deep sealed well according to claim 1, characterized in that: the inner end of the sealing box (1) is fixedly connected to a motor (2), and the output end of the motor (2) is connected to the first rotating shaft (6). 3. A wellhead protection device for a deep sealed well according to claim 1, characterized in that a warning sign (13) is fixedly connected to the front end of the sealing box (1). 4. A wellhead protection device for a deep sealed well according to claim 1, characterized in that: openings (14) are symmetrically opened at the upper end of the well cover (3), and a bearing member (10) is installed between the first rotating shaft (6) and the second rotating shaft (8). 5. A wellhead protection device for a deep sealed well according to claim 4, characterized in that: both left and right ends of the bearing member (10) are rotatably connected with a transversely mounted clamping plate (11), and the two transversely mounted clamping plates (11) are symmetrically arranged. 6. A wellhead protection device for a deep sealed well according to claim 5, characterized in that: one end of the horizontally mounted clamping plate (11) away from the bearing member (10) is fixedly connected with an inclined clamping surface (12), and the inclined clamping surface (12) abuts against the inner wall of the well body (7).