CN219734219U

CN219734219U - Packing box

Info

Publication number: CN219734219U
Application number: CN202321218828.5U
Authority: CN
Inventors: 施军; 林帆
Original assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Current assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-09-22
Anticipated expiration: 2033-05-19

Abstract

The utility model relates to a packing box which comprises a hollow cylinder body, wherein a packing cavity, a sealing cavity and a copper shaft sleeve cavity which are sequentially communicated are arranged in the cylinder body, a fixing ring fixed on the inner wall of the cylinder body is arranged between the packing cavity and the sealing cavity, a copper sleeve is sleeved in the copper shaft sleeve cavity, an air sealing pipe connected with an external air source is connected to the sealing cavity, and a locking shaft is sleeved in the copper sleeve. According to the utility model, the copper shaft sleeve is additionally arranged on the shaft of the exposed part of the door rod, so that the sealing effect is realized, most of wind is intercepted, and the leaked wind quantity is reduced; when the shaft is misplaced, the copper shaft sleeve with softer material is worn first, so that the effect of protecting the shaft is achieved. In addition, a sealing cavity is designed, sealing wind is utilized to resist primary wind pressure, and sealing of packing is further carried out, so that a better sealing effect is achieved.

Description

Packing box

Technical Field

The utility model relates to a packing box, and belongs to the technical field of door rod sealing.

Background

At present, the sealing of the air passage door rod in the power industry is generally packing sealing, namely 4-5 packing is arranged in a packing box, and only the packing materials are different.

When the existing air duct door rod is sealed, the air pressure in the air duct is large, the sealing effect is poor due to the fact that the packing is used for sealing against the air pressure once, and the new packing does not take long time, air leakage and ash leakage can start, and the environmental sanitation of the site is affected;

in order to solve the above problems, it is generally selected to increase the hardness of the packing to increase the sealing effect of the packing, but the packing having too high hardness causes abrasion to the shaft, which affects the service life of the door rod, so that improvement is required.

Disclosure of Invention

The utility model aims to provide a packing box to solve the problems that the sealing effect of the conventional air duct door rod packing seal is poor, a shaft is easy to wear and the like in the prior art.

The technical scheme of the utility model is as follows:

the packing box comprises a hollow barrel, a packing cavity, a sealing cavity and a copper shaft sleeve cavity are sequentially arranged in the barrel, a fixing ring fixed on the inner wall of the barrel is arranged between the packing cavity and the sealing cavity, a copper sleeve is sleeved in the copper shaft sleeve cavity, an air seal pipe connected with an external air source is connected to the sealing cavity, and a locking shaft is sleeved in the copper sleeve.

Preferably, two air seals are arranged on the sealing cavity and are respectively connected with the two air seal pipes.

Preferably, the copper sleeve is in interference fit with the copper sleeve cavity, and the locking shaft is in clearance fit with the copper sleeve.

Preferably, a flange plate which is matched with the fixed ring and used for pressing packing arranged in the packing cavity is arranged on the outer side of the cylinder body.

The utility model has the following beneficial effects:

1. according to the utility model, the copper shaft sleeve is additionally arranged on the shaft of the exposed part of the door rod, so that the sealing effect can be realized, most of wind is intercepted, and the leaked wind quantity is reduced; meanwhile, the copper sleeve can play a role in protecting the shaft, and when the shaft is dislocated, the copper sleeve with soft materials can be worn out firstly, so that the shaft is protected.

2. This novel sealed chamber that passes through of design to utilize the sealed wind that lets in by the atmoseal pipe to resist primary wind pressure, make the wind pressure reduce, in addition the sealing of packing, thereby reach better sealed effect.

3. According to the utility model, through the arrangement of the two air seal pipes, more sealing wind can be simultaneously introduced to resist primary wind pressure, so that the condition that the primary wind pressure in the air duct is too high and the sealing wind introduced by one air seal pipe is insufficient to resist the primary wind pressure under extreme working conditions can be prevented, and therefore, a better sealing effect is achieved.

4. According to the utility model, the flange plate is matched with the fixed ring to compress the packing arranged in the packing cavity, so that the position of the packing is firmer, and a better sealing effect is achieved.

Drawings

FIG. 1 is a front cross-sectional view of a packing box;

fig. 2 is a top view of the packing box.

The reference numerals in the drawings are as follows:

1. a packing cavity; 2. sealing the cavity; 3. a copper sleeve cavity; 4. an air seal pipe; 5. a copper sleeve; 6. a locking shaft; 7. a flange plate; 8. a fixing ring; 9. and (5) sealing the air.

Detailed Description

The utility model will now be described in detail with reference to the drawings and to specific embodiments.

As shown in fig. 1-2, the packing box of this embodiment comprises a hollow barrel, a packing cavity 1, a sealing cavity 2 and a copper shaft sleeve cavity 3 which are sequentially communicated are arranged inside the barrel, a fixing ring 8 which is fixed on the inner wall of the barrel is arranged between the packing cavity 1 and the sealing cavity 2, a copper sleeve 5 is sleeved in the copper shaft sleeve cavity 3, an air sealing pipe 4 which is externally connected with an air source is connected to the sealing cavity 2, and a locking shaft 6 is sleeved in the copper sleeve 5.

Specifically, a plurality of packing is arranged in the packing cavity 1.

Preferably, two air seals 9 are arranged on the sealing cavity 2, and the two air seals 9 are respectively connected with the two air seal pipes 4.

Preferably, the copper sleeve 5 is in interference fit with the copper sleeve cavity 3, and the locking shaft 6 is in clearance fit with the copper sleeve 5.

Preferably, a flange 7 for being matched with the fixing ring 8 to compress the packing arranged in the packing cavity 1 is arranged on the outer side of the cylinder.

The working principle of the utility model is as follows:

1. according to the utility model, the copper sleeve 5 is additionally arranged on the locking shaft 6, so that the sealing effect can be realized, most of wind is intercepted, and the leakage wind quantity is reduced; when the locking shaft 6 is misplaced, the copper sleeve 5 made of softer materials is worn first, so that the locking shaft 6 is protected.

2. According to the utility model, the sealing cavity 2 is designed, and sealing wind introduced by the air sealing pipe 4 is utilized to resist primary wind pressure, so that the wind pressure is reduced, and the sealing of the packing is further realized, so that a better sealing effect is achieved.

3. According to the utility model, through the arrangement of the two air seal pipes 4, more sealing wind can be simultaneously introduced to resist primary wind pressure, so that the condition that the primary wind pressure in the air duct is too high under extreme working conditions and the sealing wind introduced by one air seal pipe is insufficient to resist the primary wind pressure can be prevented, and a better sealing effect is achieved.

4. According to the utility model, the flange plate 7 is matched with the fixed ring 8 to compress the packing arranged in the packing cavity 1, so that the position of the packing is firmer, and a better sealing effect is achieved.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims

1. The utility model provides a packing box, its characterized in that, includes hollow barrel, the inside packing chamber (1), sealed chamber (2) and the copper axle sleeve chamber (3) that are provided with in proper order of barrel, be provided with between packing chamber (1) and sealed chamber (2) and fix solid fixed ring (8) on the barrel inner wall, copper axle sleeve chamber (3) endotheca has connect copper sheathing (5), is connected with air seal pipe (4) of external air supply on sealed chamber (2), locking axle (6) have been cup jointed to copper sheathing (5) inside.

2. A packing box according to claim 1, characterized in that the sealing chamber (2) is provided with two air seals (9), the two air seals (9) being connected to the two air seal pipes (4) respectively.

3. A packing box according to claim 1, characterized in that the copper sleeve (5) and the copper sleeve cavity (3) are in an interference fit, and the locking shaft (6) and the copper sleeve (5) are in a clearance fit.

4. A packing box according to claim 1, characterized in that the outside of the cylinder is provided with a flange (7) for co-operating with a securing ring (8) for compressing the packing arranged in the packing chamber (1).