Assembly type stirring structure for extraction box

Abstract

The utility model discloses an assembly type stirring structure for an extraction box, which comprises a stirring shaft (1), the end part of the stirring shaft (1) is provided with a connecting part (2), the outer part of the connecting part (2) is in threaded connection with a stirring blade (3), the outer side of the stirring blade (3) is connected with a sealing ring (4) in a buckling manner, and the connecting part (2) and the sealing ring (4) are arranged in an inner and outer nesting manner and a gap is reserved between the connecting part (2) and the sealing ring (4); a clamping groove (5) is formed in the stirring shaft (1) above the connecting part (2), a sealing cover (6) is buckled and connected outside the clamping groove (5), the periphery of the sealing cover (6) and the sealing ring (4) are mutually connected to form a seal, and the sealing ring (4) and the stirring blades (3) are mutually connected to form a seal. According to the utility model, the structural stability of the stirring mechanism can be improved, and manufacturers can conveniently replace the stirring blades.

Description

Technical Field

[0001] The utility model relates to an extraction box, in particular to an assembled stirring structure for the extraction box. Background Art

[0002] When the stirring mechanism of a traditional extraction box stirs corrosive liquids such as organic liquids and kerosene, it is easy to cause corrosion damage to the stirring blades at the connection, thereby affecting the working stability of the stirring mechanism and requiring the manufacturer to regularly replace the stirring mechanism. In this regard, Patent 201921926857.0 discloses an extraction box stirring mechanism, which provides a sealing structure outside the connection between the stirring rod and the stirring blade, so that the sealing structure can seal and protect the inner connection structure, thereby preventing the external corrosive liquid from contacting the connection part and causing damage.

[0003] But even if the sealing structure can protect the inner connecting structure and alleviate the loosening and falling of the connecting structure caused by the corrosive liquid. But on the one hand, the external stirring blades will still have corrosion and damage problems after long-term use, and the manufacturer needs to replace them; on the other hand, once the corrosive liquid penetrates into the inner side of the sealing structure, it will still cause damage to its connecting structure, and the long-term stability of the stirring mechanism cannot be maintained. Under this limitation, when the manufacturer uses the above-mentioned stirring mechanism, it is still necessary to replace the stirring blade structure at the end of the stirring shaft. However, the defect of this structure is that since the two ends of the sealing structure are welded to the stirring shaft and the stirring blade at the same time during installation, when the manufacturer needs to replace the stirring blade, it is impossible to directly remove the stirring blade by conventional means, but it is necessary to first destroy the weld at the connection before completing the replacement process. At the same time, in order to prevent the influence of welding slag on the subsequent installation of the stirring blade, the operator also needs to clean up the welding slag remaining on the surface of the stirring shaft, which further increases the difficulty of replacing the stirring blade.

[0004] Therefore, there is a need for an extraction box stirring mechanism that can improve working stability and is convenient for replacement. Utility Model Content

[0005] The purpose of the utility model is to provide an assembled stirring structure for an extraction box, which can improve the structural stability of the stirring mechanism and facilitate manufacturers to replace stirring blades.

[0006] The technical solution of the utility model is as follows: an assembled stirring structure for an extraction box comprises a stirring shaft, a connecting portion is provided at the end of the stirring shaft, a stirring blade is connected to the external thread of the connecting portion, a sealing ring is buckled and connected to the outer side of the stirring blade, the connecting portion and the sealing ring are nested inside and outside and a gap is left; a groove is provided on the stirring shaft above the connecting portion, a sealing cover is buckled and connected to the outside of the groove, the sealing cover is connected to the sealing ring around it to form a seal, and the sealing ring and the stirring blade are connected to each other to form a seal.

[0007] In the aforementioned assembled stirring structure for the extraction box, the slot is arch-shaped and symmetrically arranged on the left and right sides of the stirring shaft, and the sealing cover forms a circumferential limit for the stirring blade after being buckled and connected to the slot.

[0008] In the aforementioned assembled stirring structure for the extraction box, the connection portion and the stirring shaft are detachably connected, the upper end of the connection portion is connected to the limiting portion, and a slot for snap-fitting and connecting the sealing cover is formed between the limiting portion and the stirring shaft.

[0009] In the aforementioned assembled stirring structure for the extraction box, the end of the connecting portion and the stirring shaft are nested and threadedly connected, and the limiting portion is a step surface arranged on the connecting portion, and the outside of the step surface fits the sealing cover.

[0010] In the aforementioned assembled stirring structure for the extraction box, the limiting part has a long strip shape, the connecting part and the stirring shaft are interlocked and connected to the limiting part, the middle part of the limiting part passes through the connecting part and the stirring shaft respectively, and the two ends of the limiting part extend to the outside of the connecting part or the stirring shaft and fit the sealing cover.

[0011] In the aforementioned assembled stirring structure for the extraction box, a sealing strip is provided between the sealing cover and the stirring shaft.

[0012] Compared with the prior art, the utility model has the following characteristics:

[0013] (1) The utility model cooperates with the structure of the stirring shaft, the sealing ring and the sealing cover so that the sealing cover can be limited by the slot after installation, and the stirring blade can be limited in height and axial direction after the sealing ring is connected, thereby effectively preventing the stirring blade from loosening and disengaging at the threaded connection, thereby ensuring its stirring effect; at the same time, the sealing ring and the sealing cover can also seal the inner threaded connection part after connection, thereby preventing external corrosive liquid from directly contacting the connection part and causing damage; when the stirring blade needs to be replaced, the operator only needs to directly destroy the sealing ring or the sealing cover to release the hard limit on the stirring blade, so that the stirring blade can be directly unscrewed in a conventional manner, and the sealing cover can also be directly removed from the slot after destruction, thereby facilitating the operator to install the subsequent stirring blade;

[0014] (2) On this basis, the present invention further defines the connection structure between the stirring shaft and the connection part. By threading the connection part onto the stirring shaft and limiting the sealing cover, when corrosive liquid infiltrates and causes damage to the threaded connection part, the operator can also replace the connection part separately, thereby effectively reducing the replacement cost of the equipment and increasing the service life of the stirring shaft.

[0015] Therefore, the utility model can improve the structural stability of the stirring mechanism and facilitate manufacturers to replace the stirring blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of Example 1;

[0017] Figure 2 yes Figure 1 A-direction sectional view;

[0018] Figure 3 is a schematic structural diagram of Example 2;

[0019] Figure 4 It is a structural schematic diagram of Example 3.

[0020] The markings in the attached drawings are: 1-stirring shaft, 2-connecting part, 3-stirring blade, 4-sealing ring, 5-slot, 6-sealing cover, 7-limiting part. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0022] Embodiment 1. The extraction box uses an assembled stirring structure, which is composed of Figure 1-2 As shown, it includes a stirring shaft 1, a connecting portion 2 is provided at the end of the stirring shaft 1, a stirring blade 3 is connected to the external thread of the connecting portion 2, a sealing ring 4 is buckled and connected to the outer side of the stirring blade 3, and the connecting portion 2 and the sealing ring 4 are nested inside and outside with a gap; a groove 5 is provided on the stirring shaft 1 above the connecting portion 2, a sealing cover 6 is buckled and connected to the outside of the groove 5, the sealing cover 6 and the sealing ring 4 are welded to each other around to form a seal, and the sealing ring 4 and the stirring blade 3 are welded to each other to form a seal.

[0023] The slot 5 is arc-shaped and symmetrically arranged on the left and right sides of the stirring shaft 1 . The sealing cover 6 forms a circumferential limit for the stirring blade 3 after being buckled and connected to the slot 5 .

[0024] The connection portion 2 and the stirring shaft 1 are detachably connected, the upper end of the connection portion 2 is connected to a limiting portion 7, and a slot 5 for snap-fitting and connecting a sealing cover 6 is formed between the limiting portion 7 and the stirring shaft 1.

[0025] The limiting portion 7 is a long rod structure, the connecting portion 2 and the stirring shaft 1 are interlocked and connected to the limiting portion 7, the middle of the limiting portion 7 passes through the connecting portion 2 and the stirring shaft 1 respectively, and the two ends of the limiting portion 7 extend to the outside of the connecting portion 2 or the stirring shaft 1 and fit the sealing cover 6.

[0026] A sealing strip is provided between the sealing cover 6 and the stirring shaft 1 , and the sealing strip can be made of a rubber strip or a sealing red steel paper.

[0027] In this embodiment, the stirring shaft 1 and the connecting part 2 are buckled together, and the sealing cover 6 is limited by the limiting part 7, so that after the stirring blade 3 and the connecting part 2 are threadedly connected, the operator can weld the sealing cover 6, the sealing ring 4 and the stirring blade 3 in sequence, so as to limit the rotation and height of the stirring blade 3 by the mutual buckling of the sealing cover 6 and the card slot 5, and effectively prevent the stirring blade 3 from loosening and falling. At the same time, the sealing ring 4 and the sealing cover 6 can also seal the threaded connection part of the stirring shaft 1 and the connecting part 2 after being connected, that is, prevent external liquid from contacting the connection part and causing corrosion.

[0028] When the stirring blade 3 needs to be replaced after long-term use, the manufacturer can directly destroy the sealing ring 4 or the sealing cover 6 with a tool to release the hard limit of the stirring blade 3, so that the stirring blade 3 can be reversely screwed out and replaced in a conventional manner. When the threaded connection between the stirring shaft 1 and the connecting part 2 is damaged, the operator can also pull out the limiting part 7 and replace the connecting part 2 separately, thereby effectively reducing the maintenance cost of the stirring shaft 1.

[0029] Embodiment 2. The extraction box uses an assembled stirring structure, which is composed of Figure 3 As shown, it includes a stirring shaft 1, a connecting portion 2 is provided at the end of the stirring shaft 1, a stirring blade 3 is connected to the external thread of the connecting portion 2, a sealing ring 4 is buckled and connected to the outer side of the stirring blade 3, and the connecting portion 2 and the sealing ring 4 are nested inside and outside with a gap; a groove 5 is provided on the stirring shaft 1 above the connecting portion 2, a sealing cover 6 is buckled and connected to the outside of the groove 5, the sealing cover 6 and the sealing ring 4 are welded to each other around to form a seal, and the sealing ring 4 and the stirring blade 3 are welded to each other to form a seal.

[0030] The end of the connecting portion 2 and the stirring shaft 1 are nested and threadedly connected, and the limiting portion 7 is a step surface arranged on the connecting portion 2, and the outside of the step surface is in contact with the sealing cover 6.

[0031] A sealing strip is provided between the sealing cover 6 and the stirring shaft 1 , and the sealing strip can be made of a rubber strip or a sealing red steel paper.

[0032] Compared with Example 1, this embodiment uses a threaded connection to connect the stirring shaft 1 and the connecting part 2, so that the stirring shaft 1 and the connecting part 2 can directly form a slot 5 for connecting the sealing cover 6 after the connection; after the sealing cover 6 is buckled into the slot 5, it can simultaneously limit the rotation of the stirring blade 3 and the connecting part 2, that is, on the one hand, the stirring blade 3 cannot rotate relative to the connecting part 2; on the other hand, the connecting part 2 cannot rotate relative to the stirring shaft 1, thereby effectively improving the stability of the connecting part 2 under the threaded connection structure.

[0033] Embodiment 3. The extraction box uses an assembled stirring structure, which is composed of Figure 4 As shown, it includes a stirring shaft 1, a connecting portion 2 is provided at the end of the stirring shaft 1, the stirring shaft 1 and the connecting portion 2 are integrally formed, the external thread of the connecting portion 2 is connected to a stirring blade 3, the outer side of the stirring blade 3 is buckled and connected to a sealing ring 4, the connecting portion 2 and the sealing ring 4 are nested inside and outside and have a gap; a groove 5 is provided on the stirring shaft 1 above the connecting portion 2, the outer side of the groove 5 is buckled and connected to a sealing cover 6, the sealing cover 6 and the sealing ring 4 are welded to each other around to form a seal, and the sealing ring 4 and the stirring blade 3 are welded to each other to form a seal.

[0034] The limiting portion 7 is a long rod structure, the middle portion of the limiting portion 7 passes through the connecting portion 2 , and both ends of the limiting portion 7 extend to the outside of the connecting portion 2 and fit the sealing cover 6 .

[0035] The end of the connecting portion 2 forms a stepped shaft, and a through hole is provided on the stepped shaft for the limiting portion 7 to pass through. The inner hole shape of the sealing cover 6 is consistent with the outer shape of the stepped shaft, and the sealing cover 6 forms a circumferential limit when it is buckled and connected to the stepped shaft.

[0036] A sealing strip is provided between the sealing cover 6 and the stirring shaft 1 , and the sealing strip can be made of a rubber strip or a sealing red steel paper.

[0037] In this embodiment, the connection structure of the sealing cover 6 is limited so that the stirring shaft 1 and the connecting part 2 can form an integrated structure, and the rotation and height limitation of the stirring blade 3 relative to the connecting part 2 are realized, so that the stirring blade 3 cannot be reversely rotated out from the connecting part 2 or directly fall off, thereby ensuring the structural stability of the stirring blade 3.

Claims

1. The assembled stirring structure for the extraction box is characterized by: The invention comprises a stirring shaft (1), wherein a connecting portion (2) is provided at the end of the stirring shaft (1), a stirring blade (3) is connected to the external thread of the connecting portion (2), a sealing ring (4) is buckled and connected to the outer side of the stirring blade (3), and the connecting portion (2) and the sealing ring (4) are arranged to be nested inside and outside with a gap left; a groove (5) is provided on the stirring shaft (1) above the connecting portion (2), a sealing cover (6) is buckled and connected to the outer side of the groove (5), the sealing cover (6) and the sealing ring (4) are connected to each other around the periphery to form a seal, and the sealing ring (4) and the stirring blade (3) are connected to each other to form a seal.

2. The assembled stirring structure for the extraction box according to claim 1, characterized in that: The slot (5) is arc-shaped and is symmetrically arranged on the left and right sides of the stirring shaft (1); the sealing cover (6) forms a circumferential limit for the stirring blade (3) after being buckled and connected to the slot (5).

3. The assembled stirring structure for the extraction box according to claim 1, characterized in that: The connection portion (2) and the stirring shaft (1) are detachably connected, the upper end of the connection portion (2) is connected to a limiting portion (7), and a slot (5) for snap-fitting and connecting a sealing cover (6) is formed between the limiting portion (7) and the stirring shaft (1).

4. The assembled stirring structure for the extraction box according to claim 3, characterized in that: The end of the connecting portion (2) and the stirring shaft (1) are nested and threadedly connected, and the limiting portion (7) is a stepped surface arranged on the connecting portion (2), and the outside of the stepped surface is in contact with the sealing cover (6).

5. The assembled stirring structure for the extraction box according to claim 3, characterized in that: The limiting portion (7) has an elongated shape, the connecting portion (2) and the stirring shaft (1) are interlocked with each other and connected to the limiting portion (7), the middle of the limiting portion (7) passes through the connecting portion (2) and the stirring shaft (1), respectively, and the two ends of the limiting portion (7) extend to the outside of the connecting portion (2) or the stirring shaft (1) and fit the sealing cover (6).

6. The assembled stirring structure for the extraction box according to claim 1, characterized in that: A sealing strip is provided between the sealing cover (6) and the stirring shaft (1).

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