Rotary evaporation receiving bottle replacing device

Abstract

The utility model relates to the technical field of rotary evaporation receiving bottle replacement, in particular to a rotary evaporation receiving bottle replacement device, which is used for being mounted between a water outlet pipe and a receiving bottle and comprises a mounting pipe, a rotating plug and a rotating shaft, the extension pipe is arranged at the bottom of the rotating plug and connected with the mounting pipe, and the rotating plug capable of being rotationally adjusted is arranged in the extension pipe; the rotary plug and the rotating plug are both cylinders, the middles of the cylinders are flat, the two ends of the cylinders are the same as internal channels of the mounting pipe and the extending pipe in size, and the flat positions of the rotary plug and the rotating plug are valve element parts. When the receiving bottle is replaced, the conditions of steam leakage and pollution by external substances are avoided, the purity of a product in the rotary evaporation receiving bottle is improved, the accuracy of an experimental result is guaranteed, and the yield and the operation time are optimized.

Description

Technical Field

[0001] This utility model relates to the field of rotary evaporator receiving bottle replacement technology, specifically to a rotary evaporator receiving bottle replacement device. Background Technology

[0002] Rotary evaporators are commonly used instruments in laboratories of biology, chemical engineering, and pharmaceuticals. The rotary evaporator receiving flask is a component in the rotary evaporator used to collect the liquid that has evaporated from the evaporating flask and been condensed by the condenser. It collects and stores the evaporated liquid for subsequent analysis, processing, or further experiments. Rotary evaporator receiving flasks have good chemical stability, thermal stability, and transparency during use.

[0003] When the receiving bottle is installed with the rotary evaporator in the laboratory, it is directly connected to the water outlet pipe of the evaporation bottle. However, the volume of the receiving bottle is limited, and after a period of use, its interior will be filled with liquid, at which point the receiving bottle needs to be replaced.

[0004] However, during the process of changing the receiving bottle, the water outlet pipe of the evaporator will be empty. At this time, external substances will enter the rotary evaporator through the water outlet pipe, causing contamination of the device. At the same time, the steam in the evaporator will leak out through the water outlet pipe, thus affecting the analysis results of the product. Utility Model Content

[0005] To address the aforementioned issues, a rotary evaporation receiving flask replacement device is provided. By incorporating an installation tube and its internal rotating plug, as well as an extension tube and its internal rotating plug, steam leakage and contamination by external substances are prevented during flask replacement. This improves the purity of the product within the rotary evaporation receiving flask, ensures the accuracy of experimental results, and optimizes both production output and operation time.

[0006] To address the problems of existing technologies, this utility model provides a rotary evaporator receiving bottle replacement device, which is installed between the outlet pipe and the receiving bottle, comprising:

[0007] The mounting tube is equipped with a rotatable and adjustable rotary plug inside the mounting tube;

[0008] An extension tube is provided at the bottom of the rotating plug and connected to the mounting tube, and the extension tube is provided with a rotatable and adjustable rotating plug.

[0009] Both the rotary plug and the rotating plug are cylindrical with a flat middle section and both ends having the same internal channel size as the mounting tube and the extension tube, respectively. The flat section of the rotary plug and the rotating plug is the valve core, and the cylindrical section of the rotary plug and the rotating plug is the extension.

[0010] Preferably, the extensions at both ends of the rotating plug extend laterally and penetrate the mounting tube, and a connecting plate is provided at the extension and the connecting plate is in close contact with the outer wall of the mounting tube. The rotating plug is made of glass.

[0011] Preferably, the extensions at both ends of the rotating plug extend vertically and penetrate the extension tube, and the extensions are provided with extension discs that are in close contact with the outer wall of the extension tube. The rotating plug is made of polytetrafluoroethylene material with strong sealing properties.

[0012] Preferably, both the connecting disk and the extension disk are provided with a rotating block that can be rotated.

[0013] Preferably, the upper end of the mounting tube is provided with a buffer liquid storage ball, and the buffer liquid storage ball is located directly above the rotating plug.

[0014] Preferably, the bottom opening of the extension tube gradually decreases to form a constricted portion, the bottom end of the constricted portion is provided with a protrusion and a groove, a mounting bracket is provided in the groove, and a sealing ring is provided directly above the mounting bracket.

[0015] Preferably, the mounting bracket is equipped with a filter frame coaxial with it, the filter frame extending vertically upward until it penetrates the constricted portion and forms a cylindrical frame.

[0016] Preferably, the two sides of the mounting bracket extend laterally through the groove and form a clamping part that clamps against the outer wall of the closing part, and the clamping part is provided with an elastic pin.

[0017] Preferably, the bottom end of the elastic pin is in close contact with the top of the protrusion.

[0018] The advantages of this utility model compared to the prior art are:

[0019] 1. By setting up an installation pipe and a rotating plug inside the installation pipe for sealing, the contact between the water outlet pipe and the outside can be effectively blocked to avoid contamination, and effectively prevent liquid waste and steam leakage.

[0020] 2. By setting up an extension tube and cooperating with the rotating plug at the extension tube and the filter screen frame at the bottom of the extension tube, the internal air pressure of the receiving bottle and the installation tube can be adjusted. The equalization of the internal and external air pressure allows the receiving bottle to be removed from the vacuum state before replacement, while filtering out dust and other impurities carried inside when external gas enters the extension tube and installation tube, which facilitates the replacement of the receiving bottle.

[0021] 3. The liquid flowing out of the outlet pipe is temporarily stored by the buffer storage ball above the rotary stopper, so that the rotary evaporator can run continuously without stopping to wait for the receiving bottle to be replaced, thus improving the operating efficiency of the rotary evaporator. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a rotary evaporator receiving bottle replacement device.

[0023] Figure 2 This is a three-dimensional disassembled structural diagram of a rotary evaporator receiving bottle replacement device.

[0024] Figure 3 This is a three-dimensional cross-sectional schematic diagram of a rotary evaporator receiving bottle replacement device.

[0025] Figure 4 This is a three-dimensional structural diagram of a mounting bracket for a rotary evaporator receiver bottle replacement device.

[0026] Figure 5 This is a schematic diagram of the elastic pin structure of a rotary evaporator receiving bottle replacement device.

[0027] The numbers in the diagram are: 1. Installation tube; 1a. Rotary plug; 1b. Buffer reservoir ball; 2. Extension tube; 2a. Rotary plug; 2b. Protrusion; 2c. Mounting bracket; 2c1. Filter screen frame; 2c2. Elastic pin. Detailed Implementation

[0028] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0029] See Figure 1-3 As shown, a rotary evaporator receiving flask replacement device includes:

[0030] Mounting tube 1, wherein a rotatable and adjustable rotary plug 1a is provided inside the mounting tube 1;

[0031] It should be noted that the top end of the mounting tube 1 is used to connect with the water outlet pipe of the evaporating flask, and the bottom end of the mounting tube 1 is used to connect with the receiving bottle. The rotatable and adjustable rotary plug 1a is used to block the liquid from continuing to flow out of the water outlet pipe when the receiving bottle is replaced.

[0032] An extension tube 2 is provided at the bottom of the rotating plug 1a and connected to the mounting tube 1. The extension tube 2 is provided with a rotatable and adjustable rotating plug 2a.

[0033] It should be noted that the extension tube 2 is used to balance the internal and external air pressure at the mounting tube 1. When it is necessary to replace the receiving bottle at the bottom of the mounting tube 1, rotate the rotating plug 2a to connect the external gas with the gas inside the mounting tube 1, so that the mounting tube 1 and the receiving bottle are no longer in a vacuum state, facilitating the disassembly and replacement of the receiving bottle. After the replacement is completed, the air between the mounting tube 1 and the receiving bottle is extracted through the interface at the extension tube 2 to restore a vacuum state. Then, rotate the rotating plug 2a to close the channel. This operation ensures that the steam in the evaporator does not leak and that no foreign substances contaminate the products and the device.

[0034] See Figure 2 and Figure 3 As shown, both the rotating plug 1a and the rotating plug 2a are cylindrical with a flat middle section and both ends having the same internal channel size as the mounting tube 1 and the extension tube 2, respectively. The flat section of the rotating plug 1a and the rotating plug 2a is the valve core, and the cylindrical section of the rotating plug 1a and the rotating plug 2a is the extension.

[0035] The extensions at both ends of the rotating plug 1a extend laterally and penetrate the mounting tube 1. A connecting plate is provided at the extension and the connecting plate is in close contact with the outer wall of the mounting tube 1. The rotating plug 1a is made of glass.

[0036] The extensions at both ends of the rotating plug 2a extend vertically and penetrate the extension tube 2. An extension disc is provided at the extension and the extension disc is in close contact with the outer wall of the extension tube 2. The rotating plug 2a is made of polytetrafluoroethylene material with strong sealing properties.

[0037] It should be noted that the valve core of rotary plug 1a and rotary plug 2a is the main part for blocking the channel, and the extension, connecting plate and extension plate are provided for the installation of the valve core.

[0038] Both the connecting plate and the extension plate are equipped with rotating blocks that can be rotated.

[0039] It should be noted that rotating the rotating blocks at rotating plugs 1a and 2a can drive rotating plugs 1a and 2a to rotate and adjust.

[0040] See Figure 1-3 As shown, the upper end of the mounting tube 1 is provided with a buffer liquid storage ball 1b, and the buffer liquid storage ball 1b is located directly above the rotating plug 2a.

[0041] It should be noted that when the internal channel of the installation tube 1 is blocked, the buffer storage ball 1b will temporarily store the liquid condensed after evaporation inside the evaporation flask, so that the rotary evaporator can run continuously without stopping to wait for the receiving bottle to be replaced, thus improving the operating efficiency of the rotary evaporator.

[0042] See Figure 3 and Figure 4 As shown, the bottom opening of the extension tube 2 gradually decreases to form a constricted section. The bottom end of the constricted section is provided with a protrusion 2b and a groove. A mounting bracket 2c is provided in the groove, and a sealing ring is provided directly above the mounting bracket 2c.

[0043] A filter frame 2c1, coaxial with the mounting bracket 2c, is installed inside the bracket. The filter frame 2c1 extends vertically upward until it passes through the constricted part and forms a cylindrical frame.

[0044] It should be noted that the bottom opening of the extension tube 2 gradually decreases to form a constricted section, within which a filter frame 2c1 is installed. This filter is used to filter dust and other impurities from the gas entering the extension tube 2 when the rotating plug 2a opens the channel due to the large pressure difference between the inside and outside. This prevents these impurities from entering the installation tube 1 along with the gas and contaminating it. The cylindrical shape of the filter frame 2c1 allows it to pass through the constricted section and enter the straight section of the extension tube 2, increasing the filtration efficiency and enabling the filtration of more gas without affecting the inflow of gas.

[0045] Among them, the mounting bracket 2c is used for the installation of the filter frame 2c1, and the sealing ring is used to enhance the docking effect between the mounting bracket 2c and the closing part.

[0046] See Figure 3-5 As shown, the mounting bracket 2c extends laterally through the groove on both sides and forms a clamping part that clamps against the outer wall of the constriction portion. An elastic pin 2c2 is provided at the clamping part. The bottom end of the elastic pin 2c2 is in close contact with the top of the protrusion 2b.

[0047] It should be noted that before installing the filter frame 2c1, first place the sealing ring in the groove of the constriction part, and then use the mounting bracket 2c to align with the groove. At this time, the elastic pins 2c2 on both sides of the mounting bracket 2c will retract under the squeezing action of the protrusion 2b. When the mounting bracket 2c is fully aligned with the groove and in close contact with the sealing ring, the elastic pins 2c2 will pop out under the pushing action of the return spring and in close contact with the top of the protrusion 2b. At this time, the stable installation of the filter frame 2c1 can be completed.

[0048] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A rotary evaporator receiving bottle replacement device, for installation between the outlet pipe and the receiving bottle, characterized in that, include: Mounting tube (1), wherein a rotatable and adjustable rotary plug (1a) is provided inside the mounting tube (1); An extension tube (2) is provided at the bottom of the rotating plug (1a) and connected to the mounting tube (1). The extension tube (2) is provided with a rotatable and adjustable rotating plug (2a). Both the rotating plug (1a) and the rotating plug (2a) are cylindrical with a flat middle section and both ends having the same internal channel size as the mounting tube (1) and the extension tube (2), respectively. The flat part of the rotating plug (1a) and the rotating plug (2a) is the valve core part, and the cylindrical part of the rotating plug (1a) and the rotating plug (2a) is the extension part.

2. The rotary evaporator receiving flask replacement device according to claim 1, characterized in that, The extensions at both ends of the rotating plug (1a) extend laterally and penetrate the mounting tube (1). A connecting plate is provided at the extension and the connecting plate is in close contact with the outer wall of the mounting tube (1). The rotating plug (1a) is made of glass. The extensions at both ends of the rotating plug (2a) extend vertically and penetrate the extension tube (2). An extension disc is provided at the extension and the extension disc is in close contact with the outer wall of the extension tube (2). The rotating plug (2a) is made of polytetrafluoroethylene material with strong sealing properties.

3. The rotary evaporator receiving flask replacement device according to claim 2, characterized in that, Both the connecting plate and the extension plate are equipped with rotating blocks that can be rotated.

4. The rotary evaporator receiving flask replacement device according to claim 1, characterized in that, The upper end of the mounting tube (1) is provided with a buffer reservoir ball (1b), and the buffer reservoir ball (1b) is located directly above the rotating plug (2a).

5. The rotary evaporator receiving flask replacement device according to claim 1, characterized in that, The bottom opening of the extension tube (2) gradually decreases to form a constricted part. The bottom end of the constricted part is provided with a protrusion (2b) and a groove. The groove is provided with a mounting bracket (2c). A sealing ring is provided directly above the mounting bracket (2c).

6. The rotary evaporator receiving flask replacement device according to claim 5, characterized in that, The mounting bracket (2c) contains a filter frame (2c1) that is coaxial with it. The filter frame (2c1) extends vertically upward until it passes through the constriction and forms a cylindrical frame.

7. The rotary evaporator receiving flask replacement device according to claim 5, characterized in that, The mounting bracket (2c) extends laterally through the groove on both sides and forms a clamping part that clamps against the outer wall of the closing part. The clamping part is provided with an elastic pin (2c2).

8. A rotary evaporator receiving flask replacement device according to claim 7, characterized in that, The bottom end of the elastic pin (2c2) is in close contact with the top of the protrusion (2b).

Images