A rotary evaporation sealing ring assembly

Abstract

This utility model discloses a rotary evaporation sealing ring assembly, including a circular elastic body. The inner ring of the front end face of the elastic body has a circular skeleton, and the inner ring of the rear end face of the elastic body has a coil spring. A friction pad is attached to the front end face of the elastic body. The sealing ring assembly of this application, with its elastic body and coil spring, gives the sealing ring a certain elasticity, allowing it to rebound when deformed during installation, thereby increasing the reliability and service life of the sealing ring.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing rings, and more specifically, to a rotary evaporation sealing ring assembly. Background Technology

[0002] Currently, most rotary distillation apparatuses use PTFE material as the sealing ring for rotary evaporation. However, this sealing ring has weak elasticity. If the coaxiality of the rotary evaporation glass shaft is poor, the sealing ring will deform over a long period of time and will not be able to spring back, resulting in air leakage during rotary evaporation and reducing distillation efficiency. Utility Model Content

[0003] In view of the above-mentioned technical problems in related technologies, this utility model provides a rotary evaporation sealing ring assembly, which can solve the above problems.

[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0005] A rotary evaporation sealing ring assembly includes an annular elastic body, an annular skeleton is provided in the inner ring of the front end face of the elastic body, a coil spring is provided in the inner ring of the rear end face of the elastic body, and a friction pad is attached to the front end face of the elastic body.

[0006] Furthermore, the elastic body is made of fluororubber.

[0007] Furthermore, both the skeleton and the friction pad are made of PTFE material.

[0008] Furthermore, the coil spring is made of stainless steel.

[0009] Furthermore, two annular sealing lines are provided on both the front and rear ends of the elastic body.

[0010] Furthermore, an annular groove is provided on the outer side of the lip portion of the inner ring of the rear end face of the elastic body, and the coil spring is sleeved in the annular groove.

[0011] The beneficial effects of this utility model are as follows: The sealing ring assembly of this application is provided with an elastic body and a coil spring, which makes the sealing ring as a whole have certain elastic characteristics. When the sealing ring is deformed during installation, it can rebound, thereby increasing the reliability and service life of the sealing ring. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of a rotary evaporation sealing ring assembly according to an embodiment of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of a rotary evaporation sealing ring assembly according to an embodiment of the present invention. Figure 2 ;

[0016] Figure 3 This is an exploded view of a rotary evaporation sealing ring assembly according to an embodiment of the present invention.

[0017] In the picture:

[0018] 1. Elastic body; 2. Skeleton; 3. Coil spring; 4. Friction pad; 5. Sealing line; 6. Annular groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0020] like Figure 1-3 As shown, this utility model discloses a rotary evaporation sealing ring assembly, including an annular elastic body 1, an annular skeleton 2 provided in the inner ring of the front end face of the elastic body 1, a coil spring 3 provided in the inner ring of the rear end face of the elastic body 1, and a friction pad 4 attached to the front end face of the elastic body 1.

[0021] Example:

[0022] In this application, both the elastic body 1 and the skeleton 2 are directly molded in a mold. First, the elastic body 1, made of fluororubber, is formed, then the skeleton 2, made of composite PTFE, is assembled, and finally, a stainless steel coil spring 3 is installed. In final use, a PTFE friction pad 4 is added to the front end of the elastic body 1, forming the rotary evaporator sealing ring assembly of this application. Because the elastic body 1 and the skeleton 2 are composite fluororubber and PTFE materials, the sealing ring possesses both the corrosion resistance of PTFE and increased elasticity, resulting in better sealing during rotary evaporator shaft rotation. Even with poor coaxiality, elastic rebound improves sealing reliability. Furthermore, the addition of the PTFE friction pad 4 at the front end provides double corrosion resistance, meeting the needs of various applications.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary evaporation seal ring assembly, characterized by, The elastic body includes a ring-shaped elastic body (1), the inner ring of the front end face of the elastic body (1) is provided with a ring-shaped skeleton (2), the inner ring of the rear end face of the elastic body (1) is provided with a coil spring (3), and the front end face of the elastic body (1) is attached with a friction pad (4).

2. A rotary evaporation sealing ring assembly according to claim 1, wherein The elastic body (1) is made of fluororubber.

3. A rotary evaporation sealing ring assembly according to claim 1, wherein Both the skeleton (2) and the friction pad (4) are made of PTFE.

4. A rotary evaporation sealing ring assembly according to claim 1, wherein The coil spring (3) is made of stainless steel.

5. A rotary evaporation sealing ring assembly as claimed in claim 1, wherein, The elastic body (1) has two annular sealing lines (5) on both the front and rear ends.

6. A rotary evaporation sealing ring assembly according to claim 1, wherein The outer side of the lip portion of the inner ring of the rear end face of the elastic body (1) is provided with an annular groove (6), and the coil spring (3) is sleeved in the annular groove (6).

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