Sealing assembly of evaporator

Abstract

The utility model discloses a sealing assembly of an evaporator, and relates to the technical field of cold drink machine equipment. The evaporator comprises an evaporator shell and an inner shaft tube, a rotating shaft is arranged in the inner shaft tube, a front end opening is formed in the front end of the evaporator shell, and a sealing assembly arranged on the surface of the rotating shaft in a sleeving mode is arranged in the front end opening; the sealing assembly comprises an outer shaft sleeve abutting against the rotating shaft, a penetrating sleeve embedded in the periphery of the outer shaft sleeve and a fixing sleeve arranged on the inner wall of the evaporator shell. The penetrating sleeve penetrates through the front end opening to be embedded into the fixing sleeve, a first gasket sleeve is further arranged between the penetrating sleeve and the evaporator shell, and an inner shaft sleeve connected with the rotating shaft in an abutting mode is arranged on the inner periphery of the fixing sleeve. The rear end of the inner shaft tube is embedded in the rear end of the evaporator shell, and the front end of the inner shaft tube abuts against the fixing sleeve. The sealing assembly of the evaporator has the advantages of being high in durability and sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of cold drink machines, in particular to a sealing assembly for an evaporator. Background Art

[0002] A cold drink machine is a device specifically used for making cold drinks, mainly composed of two core systems: a refrigeration system and a stirring system. The refrigeration system is responsible for cooling the raw materials, while the stirring system is used to mix the raw materials to ensure their uniform distribution. The evaporator of the cold drink machine is an important part of its refrigeration system, which is used to refrigerate the materials to make a refreshing snow-melt-like drink. During the operation of the cold drink machine, one end of the rotating shaft is located outside the evaporator. In order to prevent the leakage of materials through the rotating shaft and avoid possible hygiene problems and safety risks, a sealing device needs to be provided between the rotating shaft and the evaporator.

[0003] However, there are some deficiencies in the current sealing device between the rotating shaft and the evaporator: usually there is only one seal, and this seal cannot self-compensate for wear during use. As the sealing performance gradually decreases, it may lead to material leakage, which may cause mildew inside the machine, and even in extreme cases, it may cause a short circuit in the circuit, posing a serious safety hazard.

[0004] Therefore, it is urgent to design a sealing assembly for an evaporator to solve the above problems. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a sealing assembly for an evaporator, which has the advantages of strong durability and strong sealing performance.

[0006] To solve the above technical problem, the utility model provides a sealing assembly for an evaporator. The evaporator includes an evaporator housing arranged in the horizontal direction and an inner shaft tube arranged along the central axis of the evaporator housing. A rotating shaft is provided in the inner shaft tube. A front end opening is provided at the front end of the evaporator housing, and a sealing assembly sleeved on the surface of the rotating shaft is provided in the front end opening. The sealing assembly includes an outer shaft sleeve in contact with the rotating shaft, a through sleeve embedded in the periphery of the outer shaft sleeve, and a fixed sleeve provided on the inner wall of the evaporator housing. The through sleeve passes through the front end opening and is embedded in the fixed sleeve. A first gasket sleeve is further provided between the through sleeve and the evaporator housing. An inner shaft sleeve in contact with the rotating shaft is provided inside the fixed sleeve. The rear end of the inner shaft tube is embedded in the rear end of the evaporator housing, and the front end of the inner shaft tube abuts against the fixed sleeve.

[0007] As an improvement to the above solution, the rear end of the evaporator housing is provided with a rear end opening. Inside the evaporator housing, a rear end ring sleeve is provided at the rear end opening. The rear end of the inner shaft tube is placed in the rear end ring sleeve and presses against the inner wall of the rear end opening.

[0008] As an improvement to the above solution, on the side of the outer shaft sleeve away from the evaporator housing, a first abutting portion that abuts against the rotating shaft is provided.

[0009] As an improvement to the above solution, the outer shaft sleeve is provided with a first shaft sleeve portion and a second shaft sleeve portion. A first groove is formed between the first shaft sleeve portion and the second shaft sleeve portion; the through sleeve is provided with a first embedding portion adapted to the first groove, and the first embedding portion is placed in the first groove.

[0010] As an improvement to the above solution, the through sleeve is further provided with a thickened portion covering the first gasket sleeve.

[0011] As an improvement to the above solution, the fixed sleeve is provided with a first fixing portion that abuts against the second shaft sleeve portion and a second fixing portion that abuts against the inner wall of the evaporator housing from the inside to the outside. A second groove is formed between the first fixing portion and the second fixing portion; the through sleeve is provided with a second embedding portion adapted to the second groove, and the second embedding portion is placed in the second groove.

[0012] As an improvement to the above solution, at least one protruding reinforcing strip is provided on both sides of the second shaft sleeve portion and the first gasket sleeve; the first embedding portion, the first fixing portion, the thickened portion, and the outer wall of the evaporator housing are all provided with reinforcing tracks adapted to the reinforcing strips; the reinforcing strips on both sides of the second shaft sleeve portion are respectively connected to the reinforcing tracks of the first embedding portion and the first fixing portion, and the reinforcing strips on both sides of the first gasket sleeve are respectively connected to the reinforcing tracks of the thickened portion and the outer wall of the evaporator housing.

[0013] As an improvement to the above solution, the inner shaft sleeve is arranged inside the first fixing portion, and the inner shaft sleeve is provided with a second abutting portion that abuts against the rotating shaft.

[0014] As an improvement to the above solution, the fixed sleeve is further provided with a positioning portion arranged inside the front end of the inner shaft tube.

[0015] As an improvement to the above solution, a second gasket sleeve is arranged inside the first fixing portion, and the second gasket sleeve is arranged between the inner shaft sleeve and the positioning portion.

[0016] The beneficial effects of implementing the present utility model are as follows:

[0017] The sealing assembly of the evaporator of the present utility model is provided with an outer shaft sleeve and an inner shaft sleeve that abut against the rotating shaft, with strong sealing performance. Moreover, through the combination of the through sleeve, the fixed sleeve, and the first gasket sleeve, a multi-layer fixed damping structure is formed, improving the structural stability.

[0018] The sealing assembly of the evaporator of the present utility model also further strengthens the structural stability between components through the cooperation of the reinforcing strip and the reinforcing track. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the sealing assembly of the evaporator of the present utility model;

[0020] Figure 2 is a cross-sectional structural schematic diagram of the sealing assembly of the evaporator of the present utility model;

[0021] Figure 3 is a cross-sectional structural schematic diagram of the front end of the evaporator housing in the sealing assembly of the evaporator of the present utility model;

[0022] Figure 4 is a cross-sectional structural schematic diagram of the front end of the evaporator housing after removing the rotating shaft in the sealing assembly of the evaporator of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inner, and outer that appear or will appear in the text of the present utility model are only based on the accompanying drawings of the present utility model and do not specifically limit the present utility model.

[0024] As Figures 1 to 3 shown, the evaporator includes an evaporator housing 1 arranged in the horizontal direction and an inner shaft tube 2 arranged along the central axis of the evaporator housing 1. A rotating shaft 3 is provided in the inner shaft tube 2. A front end opening 11 is provided at the front end of the evaporator housing 1, and a sealing assembly 4 sleeved on the surface of the rotating shaft 3 is provided in the front end opening 11;

[0025] The sealing assembly 4 includes an outer shaft sleeve 41 that abuts against the rotating shaft 3, a through sleeve 42 embedded in the periphery of the outer shaft sleeve 41, and a fixed sleeve 43 provided on the inner wall of the evaporator housing 4;

[0026] The through sleeve 42 passes through the front end opening 11 and is embedded in the fixed sleeve 43. A first gasket sleeve 44 is further provided between the through sleeve 42 and the evaporator housing 1. An inner shaft sleeve 45 that abuts against the rotating shaft 3 is provided inside the fixed sleeve 43;

[0027] The rear end of the inner shaft tube 2 is embedded in the rear end of the evaporator housing 1, and the front end of the inner shaft tube 2 abuts against the fixed sleeve 43.

[0028] Therefore, the sealing assembly of the evaporator of the present utility model has strong sealing performance through the outer shaft sleeve 41 and the inner shaft sleeve 45 that abut against the rotating shaft 3, and forms a multi-layer fixed damping structure through the combination of the through sleeve 42, the fixed sleeve 43 and the first gasket sleeve 44, improving the structural stability.

[0029] Specifically, in order to fix the rear end of the inner shaft tube 2, the rear end of the evaporator housing 1 is provided with a rear end opening 12, and a rear end ring sleeve 121 is provided inside the evaporator housing 1 at the rear end opening 12. The rear end of the inner shaft tube 2 is placed in the rear end ring sleeve 121 and abuts against the inner wall of the rear end opening 12.

[0030] Such as Figure 3 and Figure 4 As shown, in order to reduce the contact between the outer shaft sleeve 41 and the rotating shaft 3 to reduce the friction force, the outer shaft sleeve 41 is provided with a first abutting portion 411 that abuts against the rotating shaft 3 on the side away from the evaporator housing 1.

[0031] In order to embed the through sleeve 42 around the outer shaft sleeve 41, specifically, the outer shaft sleeve 41 is provided with a first shaft sleeve portion 412 and a second shaft sleeve portion 413, and a first groove 414 is formed between the first shaft sleeve portion 412 and the second shaft sleeve portion 413;

[0032] The through sleeve 42 is provided with a first embedding portion 421 adapted to the first groove 414, and the first embedding portion 421 is placed in the first groove 414.

[0033] The through sleeve 42 is further provided with a thickening portion 422 covering the first gasket sleeve 44. The thickening portion 422 covers the first gasket sleeve 44, making the appearance more regular and capable of strengthening the absorption of vibration energy.

[0034] In order to embed the through sleeve 42 into the fixed sleeve 43, specifically: the fixed sleeve 43 is provided with a first fixing portion 431 abutting against the second shaft sleeve portion 413 and a second fixing portion 432 abutting against the inner wall of the evaporator housing 1 from the inside to the outside, and a second groove 433 is formed between the first fixing portion 431 and the second fixing portion 432;

[0035] The through sleeve 42 is provided with a second embedding portion 423 adapted to the second groove 433, and the second embedding portion 423 is placed in the second groove 433.

[0036] At least one protruding reinforcing strip 4a is provided on both sides of the second shaft sleeve portion 413 and the first gasket sleeve 44;

[0037] The outer walls of the first embedding part 421, the first fixing part 431, the thickening part 422 and the evaporator housing 1 are all provided with reinforcing tracks 4b adapted to the reinforcing strips 4a.

[0038] The reinforcing strips 4a on both sides of the second bushing part 413 are respectively inserted into the reinforcing tracks 4b of the first embedding part 421 and the first fixing part 431, and the reinforcing strips 4a on both sides of the first gasket sleeve 44 are respectively inserted into the reinforcing tracks 4b of the thickening part 422 and the outer wall of the evaporator housing 1.

[0039] The inner bushing 45 is arranged in the first fixing part 431. The inner bushing 45 is provided with a second abutting part 451 that abuts against the rotating shaft 3. The outer bushing 41 and the inner bushing 45 are made of elastic materials such as rubber and nylon. After long-term use, when the first abutting part 411 and the second abutting part 451 are partially worn, the elastic outer bushing 41 and inner bushing 45 will still make the first abutting part 411 and the second abutting part 451 abut against the rotating shaft 3 for wear compensation.

[0040] The fixing sleeve 43 is further provided with a positioning part 434 arranged inside the front end of the inner shaft tube 2 to cooperate with the rear end collar 121 to fix the inner shaft tube 2.

[0041] To further enhance the damping effect, a second gasket sleeve 46 is arranged inside the first fixing part 431, and the second gasket sleeve 46 is arranged between the inner bushing 45 and the positioning part 434.

[0042] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A sealing assembly for an evaporator, the evaporator comprising an evaporator shell arranged in a horizontal direction and an inner shaft tube arranged along the central axis of the evaporator shell, wherein a rotating shaft is arranged in the inner shaft tube, and a front end opening is arranged at the front end of the evaporator shell, wherein: The front end opening is provided with a sealing component sleeved on the surface of the rotating shaft; The sealing assembly comprises an outer sleeve abutting against the rotating shaft, a through sleeve embedded in the periphery of the outer sleeve, and a fixed sleeve arranged on the inner wall of the evaporator shell; The through sleeve passes through the front opening and is embedded in the fixed sleeve. A first gasket sleeve is provided between the through sleeve and the evaporator shell. An inner sleeve abutting against the rotating shaft is provided on the inner periphery of the fixed sleeve. The rear end of the inner shaft tube is embedded in the rear end of the evaporator shell, and the front end of the inner shaft tube is in contact with the fixing sleeve.

2. The sealing assembly of the evaporator according to claim 1, characterized in that: The rear end of the evaporator shell is provided with a rear end opening, and the rear end opening is provided with a rear end ring sleeve inside the evaporator shell. The rear end of the inner shaft tube is placed in the rear end ring sleeve and pressed against the inner wall of the rear end opening.

3. The sealing assembly of the evaporator according to claim 1, characterized in that: The outer sleeve is provided with a first abutting portion abutting against the rotating shaft on a side away from the evaporator shell.

4. The sealing assembly of the evaporator according to claim 1, characterized in that: The outer sleeve is provided with a first sleeve portion and a second sleeve portion, and a first groove is formed between the first sleeve portion and the second sleeve portion; The through sleeve is provided with a first embedding portion adapted to the first groove, and the first embedding portion is placed in the first groove.

5. The sealing assembly of the evaporator according to claim 4, characterized in that: The through sleeve is also provided with a thickened portion covering the first gasket sleeve.

6. The sealing assembly of the evaporator according to claim 5, characterized in that: The fixing sleeve is provided with a first fixing portion abutting against the second shaft sleeve portion and a second fixing portion abutting against the inner wall of the evaporator shell from the inside to the outside, and a second groove is formed between the first fixing portion and the second fixing portion; The through sleeve is provided with a second embedding portion adapted to the second groove, and the second embedding portion is placed in the second groove.

7. The sealing assembly of the evaporator according to claim 6, characterized in that: At least one protruding reinforcement strip is provided on both sides of the second sleeve portion and the first gasket sleeve; The first embedded portion, the first fixed portion, the thickened portion and the outer wall of the evaporator housing are all provided with a reinforcement track adapted to the reinforcement strip; The reinforcement strips on both sides of the second sleeve portion are respectively connected to the reinforcement tracks of the first embedded portion and the first fixed portion, and the reinforcement strips on both sides of the first gasket sleeve are respectively connected to the reinforcement tracks of the thickened portion and the outer wall of the evaporator shell.

8. The sealing assembly of the evaporator according to claim 6, characterized in that: The inner sleeve is arranged in the first fixing portion, and the inner sleeve is provided with a second abutting portion abutting against the rotating shaft.

9. The sealing assembly of the evaporator according to claim 6, characterized in that: The fixing sleeve is also provided with a positioning portion arranged inside the front end of the inner shaft tube.

10. The sealing assembly of the evaporator according to claim 9, characterized in that: A second gasket sleeve is arranged in the first fixing portion, and the second gasket sleeve is arranged between the inner shaft sleeve and the positioning portion.

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