Dustproof manhole plugging device

Abstract

The utility model relates to the field of manhole plugging devices, in particular to an anti-dust manhole plugging device which comprises a base, a connecting seat is arranged at one end of the base, a blade group is arranged on one side, facing the connecting seat, of the base, and a sealing sleeve is arranged between the connecting seat and the base. And an inflation pipeline communicated with the sealing sleeve is arranged on the connecting seat. A baffle is arranged on the side, away from the base, of the connecting base. The utility model has the effects of reducing the accumulation of dust in the manhole and reducing the waste of the dust.

Description

Technical Field

[0001] The utility model relates to the field of manhole blocking devices, in particular to a manhole blocking device for preventing dust accumulation. Background Art

[0002] There is a spray drying step in the production process of lithium iron phosphate batteries. The spray drying step is generally carried out using special equipment, but in order to withstand the high temperature and high pressure during the spray drying process and prevent dust from polluting the surrounding environment during the spraying process, the equipment wall thickness is relatively large, which also leads to a larger manhole depth on the equipment.

[0003] Some current blocking devices, such as a quick-detachable pressure-code hanging manhole door disclosed in the Chinese patent with announcement number CN219669029U, are blocked outside the manhole on the outer wall of the coal feeder; the manhole door includes a door body, a pressure code unit and a hanging unit, wherein the door body is blocked at the door opening of the outer wall of the coal feeder, the edge of the door body is radially limited and axially pressed with a pressure code unit, and one end of the hanging unit is rotatably hung on the outer wall of the door body; the other end of the hanging unit is circumferentially rotated and axially limited and connected to the outer wall of the coal machine. Faced with a large depth of the manhole, a large amount of dust will accumulate in the manhole, resulting in waste of dust. Utility Model Content

[0004] In order to reduce the accumulation of dust in the manhole and reduce the waste of dust, the utility model provides a manhole blocking device for preventing dust accumulation.

[0005] The utility model provides a manhole blocking device for preventing dust accumulation, which adopts the following technical solutions:

[0006] A dust-proof manhole blocking device comprises a base, a blade group is arranged on the side wall of the base, a connecting seat is arranged at one end of the base, a sealing sleeve is arranged between the connecting seat and the base, and an inflation pipeline connected to the sealing sleeve is opened on the connecting seat.

[0007] In a specific possible implementation manner, a baffle is provided on a side of the connecting seat facing away from the base.

[0008] In a specific possible implementation manner, the baffle is threadedly connected to the connecting seat.

[0009] In a specific possible implementation manner, a first connecting portion is provided on a surface of the base facing the connecting seat, and the sealing sleeve is sleeved on the first connecting portion.

[0010] In a specific implementation manner, the outer diameter of the first connecting portion is greater than the inner diameter of the sealing sleeve.

[0011] In a specific feasible embodiment, a second connecting portion is provided on the surface of the connecting seat facing the base, and the sealing sleeve is sleeved on the second connecting portion.

[0012] In a specific feasible embodiment, the outer diameter of the second connecting portion is greater than the inner diameter of the sealing sleeve.

[0013] In a specific feasible embodiment, the blade group includes a connecting ring and a plurality of blades. The connecting ring is connected to each blade, and the connecting ring is arranged on the surface of the blade facing the connecting seat.

[0014] In a specific feasible embodiment, a relief groove is formed on the surface of the base facing the blade.

[0015] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0016] 1. The base is arranged inside the device, and the connecting seat is arranged outside the device. The base and the connecting seat are connected through a sealing sleeve. By inflating the sealing sleeve, the sealing sleeve closes the inside of the manhole, and the connecting seat and the base close the opening of the manhole, thereby blocking dust from entering the manhole and preventing dust from floating out of the manhole to the outside of the device, effectively reducing dust waste.

[0017] 2. The baffle shields the air inlet pipeline on the connecting seat, blocking dust in the external environment from entering the air inlet pipeline and causing dust pollution to the dust. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure.

[0019] Figure 2 is a schematic diagram showing the structure of the blade group.

[0020] Description of the reference numerals: 1, base; 2, blade group; 21, blade; 22, connecting ring; 3, sealing sleeve; 4, connecting seat; 5, baffle; 6, relief groove; 7, first connecting portion; 8, second connecting portion; 9, air inlet pipeline; 10, recessed portion; 11, protruding portion. Detailed Description of the Embodiment

[0021] The following further elaborates on the present utility model in conjunction with the attached Figure 1-2 drawings.

[0022] Refer to Figure 1 and Figure 2, the dust-proof plugging manhole device includes a base 1. One end of the base 1 is provided with a connecting seat 4. A first connecting portion 7 is fixed on the surface of the base 1 facing the connecting seat 4. A second connecting portion 8 is fixed on the surface of the connecting seat 4 facing the base 1. The first connecting portion 7 protrudes from the base 1 towards the connecting seat 4 and is specifically a block with a circular cross-section. In some other embodiments, it can also be annular. The shape of the second connecting portion 8 is the same as that of the first connecting portion 7 and they are coaxially arranged, which will not be elaborated further.

[0023] Refer to Figure 1 and Figure 2 , a sealing sleeve 3 is provided between the base 1 and the connecting seat 4. The sealing sleeve 3 is made of a high-temperature resistant elastic material such as rubber, which can greatly delay the aging of the sealing sleeve 3 under high temperature and high pressure during the operation of the equipment and avoid debris generated by aging from mixing into the dust. One end of the sealing sleeve 3 is sleeved on the first connecting portion 7, and the other end is sleeved on the second connecting portion 8. In order to improve the sealing performance of the connection between the first connecting seat 4 and the second connecting seat 4 and the sealing sleeve 3, sealing elements such as hoop can be installed at the connection between the sealing sleeve 3 and the first connecting portion 7 and the second connecting portion 8, or sealing glue can be sprayed.

[0024] Refer to Figure 1 and Figure 2 , an air charging pipeline 9 communicating with the sealing sleeve 3 is opened on the connecting seat 4. By setting elements such as an air charging nozzle in the air charging pipeline 9 and charging air into the sealing sleeve 3, the sealing sleeve 3 can be inflated. The connecting seat 4 is arranged outside the equipment, the base 1 is arranged inside the equipment, and the sealing sleeve 3 is in the manhole. As air is charged into the sealing sleeve 3, the sealing sleeve 3 expands and fits with the inner wall of the manhole, plugging the manhole and preventing dust from floating out of the manhole to the outside of the equipment.

[0025] To further improve the sealing performance of the connection between the sealing sleeve 3 and the first connecting portion 7 and the second connecting portion 8, the outer diameters of the first connecting portion 7 and the second connecting portion 8 are larger than the inner diameter of the sealing sleeve 3. After the sealing sleeve 3 is sleeved on the first connecting portion 7 and the second connecting portion 8, there is a shrinking force, thereby improving the sealing effect on the gap between the sealing sleeve 3 and the first connecting portion 7 and the second connecting portion 8.

[0026] Refer to Figure 1 and Figure 2, on the side of the connecting seat 4 facing away from the base 1, there is a baffle 5. The baffle 5 is threadedly connected to the connecting seat 4. Specifically, on the side of the baffle 5 facing the connecting seat 4, there is a protruding portion 11, and on the side of the connecting seat 4 facing the baffle 5, there is a recessed portion 10. The protruding portion 11 is threadedly connected within the recessed portion 10 to complete the threaded connection between the baffle 5 and the connecting seat 4. The baffle 5 shields the air charging pipeline 9 on the connecting seat 4, blocking external dust from entering the air charging pipeline 9 and preventing dust from contaminating the dust through the air charging pipeline 9. It is easy to understand that the threaded connection between the baffle 5 and the connecting seat 4 can also be that a recess is provided on the side of the baffle 5 facing the connecting seat 4, and it is threadedly connected to the side wall of the connecting seat 4 through the recess, or the baffle 5 is penetrated by a screw and threadedly connected to the connecting seat 4, etc.

[0027] Referring to Figure 1 and Figure 2 , on the side of the base 1 facing the connecting seat 4, there is a blade group 2. The blade group 2 includes a connecting ring 22 and multiple blades 21. The multiple blades 21 are fixedly arranged on the connecting ring 22 at intervals along the circumferential direction of the connecting ring 22. On the side of the base 1 facing the blade 21, there is a clamping and yielding groove 6 for the connecting ring 22. In the normal state, the blades 21 are in a retracted state, and the blades 21 are attached to the outer wall of the sealing sleeve 3. As the sealing sleeve 3 expands, the sealing sleeve 3 pushes the blades 21 to rotate and unfold with the connecting ring 22 as the rotation axis until the blades 21 abut against the side of the base 1 facing the connecting ring 22. It should be noted that for the convenience of display, Figure 1 and Figure 2 in, the length of the blade 21 is reduced. In actual application, the free end of the blade 21 can extend to the middle part of the sealing sleeve 3; for the convenience of understanding, the gap between the yielding groove 6 and the connecting ring 22 is enlarged. In actual application, there is a clearance fit between the connecting ring 22 and the yielding groove 6.

[0028] The working process of the embodiment of the present utility model is as follows: Rotate the blades 21 to fit with the outer wall of the sealing sleeve 3, insert the base 1 from the outside of the equipment into the equipment through the manhole. After the blades 21 completely pass through the manhole, inject air into the sealing sleeve 3 through the air charging pipeline 9. As the sealing sleeve 3 expands, the sealing sleeve 3 pushes the blades 21 to rotate, causing the blades 21 to rotate and unfold. Pull the connecting seat 4 outward, thereby driving the blades 21 to fit with the inner wall of the equipment, closing the gap between the base 1 and the manhole, so that the debris generated by the aging of the sealing sleeve 3 cannot enter the equipment. Further inject air into the sealing sleeve 3. After the sealing sleeve 3 expands, the outer wall of the sealing sleeve 3 fits with the inner wall of the manhole, blocking the floating of dust from the manhole to the outside and the accumulation of dust in the manhole, reducing the waste of dust. Finally, connect the baffle 5 to the connecting seat 4, and close the gap between the connecting seat 4 and the inner wall of the manhole through the baffle 5, blocking external dust from contaminating the dust.

[0029] When it needs to be removed, first remove the baffle 5, and then discharge the air in the sealing sleeve 3 through the air charging pipeline 9, so that this device can be drawn out of the manhole from the equipment.

[0030] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A manhole blocking device for preventing dust accumulation, characterized in that: The invention comprises a base (1), a connecting seat (4) being provided at one end of the base (1), a blade group (2) being provided on a side of the base (1) facing the connecting seat (4), a sealing sleeve (3) being provided between the connecting seat (4) and the base (1), and an air charging pipeline (9) being provided on the connecting seat (4) and communicating with the sealing sleeve (3); A baffle (5) is provided on the side of the connecting seat (4) facing away from the base (1).

2. The dust-proof manhole blocking device according to claim 1, characterized in that: The baffle (5) is threadedly connected to the connecting seat (4).

3. The dust-proof manhole blocking device according to claim 1, characterized in that: A first connecting portion (7) is provided on a surface of the base (1) facing the connecting seat (4), and the sealing sleeve (3) is sleeved on the first connecting portion (7).

4. The dust-proof manhole blocking device according to claim 3, characterized in that: The outer diameter of the first connecting portion (7) is greater than the inner diameter of the sealing sleeve (3).

5. The dust-proof manhole blocking device according to claim 1, characterized in that: A second connecting portion (8) is provided on a surface of the connecting seat (4) facing the base (1), and the sealing sleeve (3) is sleeved on the second connecting portion (8).

6. The dust-proof manhole blocking device according to claim 5, characterized in that: The outer diameter of the second connecting portion (8) is greater than the inner diameter of the sealing sleeve (3).

7. The dust-proof manhole blocking device according to claim 1, characterized in that: The blade group (2) comprises a connecting ring (22) and a plurality of blades (21); the connecting ring (22) is connected to each of the blades (21); and the connecting ring (22) is arranged on a side of the blade (21) facing the connecting seat (4).

8. The dust-proof manhole blocking device according to claim 7, characterized in that: A clearance groove (6) is provided on a surface of the base (1) facing the blade (21).

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