Appropriate fixing device for interface of rotary evaporator

Abstract

The utility model relates to a proper fixing device for a rotary evaporator interface, which comprises a fixing cylinder, a ring is rotatably mounted on the outer surface of the fixing cylinder, a clamping piece is arranged on the outer surface of the ring, a connecting port is formed in the left side of the fixing cylinder, a sealing air bag is mounted on the inner wall of the connecting port in a surrounding manner, and the sealing air bag is connected with the clamping piece. A reinforcing mechanism is arranged at the top of the ring; the reinforcing mechanism comprises a fixing box, the fixing box is fixedly mounted at the top of the ring, an opening is formed in the top of the fixing box, a rotating block is rotatably mounted in the opening, screw rods are fixedly mounted in the rotating block, and sleeves are in threaded connection with the outer surfaces of the two screw rods. According to the proper fixing device for the interface of the rotary evaporator, by arranging the reinforcing mechanism, air pressure of the air collecting box can be extruded into the sealing air bag, so that the sealing air bag is expanded to fill a gap between the connecting port and the bottle opening, the sealing performance of the connecting port is improved, and meanwhile, the connecting stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary evaporators, in particular to a rotary evaporator interface fixing device. Background Art

[0002] A rotary evaporator is a commonly used liquid-liquid separation device in laboratories. It is mainly used for continuous distillation of volatile solvents under reduced pressure conditions. It heats and rotates the flask to increase the evaporation area and improve the evaporation efficiency, thereby quickly removing the solvent from the sample. A rotary evaporator is usually connected to a flask containing the liquid to be evaporated through a special fixture. The fixture is mainly composed of a ring plate and a clamping frame. The ring plate is firmly connected to the main body of the rotary evaporator, and the clamping frame is located in the middle of the outer side wall of the ring plate and can rotate around it. When the clamping frame rotates to the appropriate position, it will tightly abut against the flange of the flask mouth, thereby firmly clamping the flask on the rotary evaporator. This design ensures the stability of the flask during rotation and distillation, so that the evaporation process can be carried out safely and effectively.

[0003] However, as time goes by, the flask mouth and the clamping frame may wear out due to long-term use, causing the connection between the two to become loose, which not only affects the stability of the connection, but also the airtightness. Therefore, a suitable fixing device for the rotary evaporator interface is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a suitable fixing device for the interface of a rotary evaporator, which has the advantages of stable connection, etc., and solves the problem that over time, the flask mouth and the clamping frame may be worn due to long-term use, causing the connection between the two to become loose, which not only affects the stability of the connection but also affects the airtightness.

[0005] To achieve the above object, the utility model provides the following technical solutions: a rotary evaporator interface fixing device, comprising a fixing cylinder, a ring is rotatably mounted on the outer surface of the fixing cylinder, a clamping piece is arranged on the outer surface of the ring, a connection port is opened on the left side of the fixing cylinder, a sealing air bag is mounted around the inner wall of the connection port, and a reinforcing mechanism is arranged on the top of the ring;

[0006] The reinforcing mechanism includes a fixing box, a fixing box is fixedly installed on the top of the ring, an opening is opened on the top of the fixing box, a rotating block is rotatably installed in the opening, a screw is fixedly installed inside the rotating block, the outer surfaces of the two screws are threadedly connected with sleeves, the opposite ends of the two sleeves are fixedly installed with slides, the opposite sides of the two slides are fixedly installed with push rods, the opposite ends of the two push rods are fixedly installed with piston plates, the outer surfaces of the two piston plates are provided with cylinders, and the opposite ends of the two cylinders are fixedly installed with air collecting boxes.

[0007] Furthermore, a support ring located on the outer surfaces of the two screw rods is fixedly mounted on the inner top wall of the fixing box, and the two screw rods are rotatably connected to the support ring.

[0008] Furthermore, the two piston plates and the two cylinders are both cylindrical, and the two cylinders are adapted to the piston plates.

[0009] Furthermore, the two slide plates are both slidably mounted between the inner top wall and the inner bottom wall of the fixed box.

[0010] Furthermore, an air inlet hole is opened between the opposite ends of the two cylinders and the air collecting box, and an air inlet pipe is fixedly installed between the bottom of the fixed box and the sealing airbag.

[0011] Furthermore, an exhaust port is provided on the front side of the air collecting box, and a sealing plug is inserted into the exhaust port.

[0012] Furthermore, the clamping member includes a support frame, and three support frames are fixedly installed at equal distances on the outer surface of the ring. Clamping claws are rotatably installed on the three support frames, and springs are fixedly installed between the right ends of the three clamping claws and the outer surface of the ring.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The rotary evaporator interface has an appropriate fixing device, and a reinforcing mechanism is provided. When the rotary block is rotated, the piston plate can be driven to move left and right under the action of the screw, sleeve, slide plate and push rod, thereby squeezing the air pressure of the air collecting box into the sealing air bag, causing the sealing air bag to expand and fill the gap between the connecting port and the flask mouth, thereby improving the sealing of the connection and improving the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the clamping member of the utility model;

[0017] Figure 3It is a cross-sectional view of the fixing box of the utility model.

[0018] In the figure: 1, fixed cylinder; 2, ring; 3, clamping piece; 301, support frame; 302, claw; 303, spring; 4, connecting port; 401, sealing airbag; 5, reinforcing mechanism; 501, fixed box; 502, opening; 503, rotating block; 504, screw; 505, sleeve; 506, slide plate; 507, push rod; 508, piston plate; 509, cylinder; 510, air collecting box. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 In this embodiment, a rotary evaporator interface suitable fixing device includes a fixed cylinder 1, a ring 2 is rotatably installed on the outer surface of the fixed cylinder 1, a clamping piece 3 is provided on the outer surface of the ring 2, a connecting port 4 is opened on the left side of the fixed cylinder 1, a sealing airbag 401 is installed around the inner wall of the connecting port 4, and a reinforcing mechanism 5 is provided on the top of the ring 2.

[0021] The clamping member 3 includes a support frame 301, and three support frames 301 are fixedly installed at equal distances on the outer surface of the ring 2. Claws 302 are rotatably installed on the three support frames 301, and springs 303 are fixedly installed between the right ends of the three claws 302 and the outer surface of the ring 2.

[0022] The mouth of the flask is inserted into the connection port 4, so that the three claws 302 rotate on the three support frames 301. Through the contraction and expansion of the spring 303, the three claws 302 are clamped on the outside of the flask to fix the flask.

[0023] The reinforcing mechanism 5 includes a fixed box 501, and the fixed box 501 is fixedly installed on the top of the ring 2. An opening 502 is opened on the top of the fixed box 501, and a rotating block 503 is rotatably installed in the opening 502. A screw 504 is fixedly installed inside the rotating block 503. The outer surfaces of the two screws 504 are threadedly connected with sleeves 505, and the opposite ends of the two sleeves 505 are fixedly installed with slides 506, and the opposite sides of the two slides 506 are fixedly installed with push rods 507, and the opposite ends of the two push rods 507 are fixedly installed with piston plates 508, and the outer surfaces of the two piston plates 508 are provided with cylinders 509, and the opposite ends of the two cylinders 509 are fixedly installed with air collecting boxes 510.

[0024] A support ring located on the outer surface of the two screw rods 504 is fixedly mounted on the inner top wall of the fixing box 501, and the two screw rods 504 are rotatably connected to the support ring. By providing two support rings, the stability of the two screw rods 504 during rotation is improved.

[0025] The two piston plates 508 and the two cylinders 509 are both cylindrical, and the two cylinders 509 are matched with the piston plates 508, so that when the two piston plates 508 move left and right in the cylinders 509, the air pressure in the air collecting box 510 can be squeezed into the sealing airbag 401.

[0026] The two slide plates 506 are both slidably mounted between the inner top wall and the inner bottom wall of the fixed box 501 , so that the two slide plates 506 remain stable when moving left and right.

[0027] An air inlet hole is opened at the opposite ends of the two cylinders 509 and between them and the air collecting box 510. An air inlet pipe is fixedly installed between the bottom of the fixed box 501 and the sealed air bag 401. Under the action of the air inlet pipe, the air pressure in the air collecting box 510 can smoothly enter the sealed air bag 401, thereby expanding the sealed air bag 401. The inner side of the sealed air bag 401 fits tightly with the outer side of the flask mouth, thereby improving the sealing and connection stability.

[0028] An exhaust port is provided on the front side of the gas collecting box 510, and a sealing plug is inserted into the exhaust port. By opening the sealing plug, the gas in the sealed airbag 401 can be discharged, making it convenient to remove the flask.

[0029] When implementing, follow these steps:

[0030] 1) The fixed cylinder 1 is fixed to the evaporator, the mouth of the flask is first inserted into the connecting port 4, and the outer surface of the flask is abutted by the clamping piece 3, and the ring 2 and the clamping piece 3 can rotate on the fixed cylinder 1;

[0031] 2) Then the rotating block 503 is rotated, the rotating block 503 drives the two screw rods 504 to rotate, the two screw rods 504 drive the two sleeves 505 to move relative or oppositely, the two sleeves 505 drive the two slide plates 506 to slide relative or oppositely, the two slide plates 506 drive the two push rods 507 to move relative or oppositely, and the two push rods 507 drive the two piston plates 508 to slide relative or oppositely in the cylinder 509;

[0032] 3) As the two piston plates 508 move, the gas in the gas collecting box 510 is squeezed into the sealed airbag 401 to expand it. The expanded sealed airbag 401 fits tightly against the mouth of the flask, thereby filling the gap between the two.

[0033] In summary, the rotary evaporator interface has an appropriate fixing device, and by setting a reinforcing mechanism 5, when the rotating block 503 is rotated, under the action of the screw 504, the sleeve 505, the slide plate 506, and the push rod 507, it can drive the piston plate 508 to move left and right, thereby squeezing the air pressure of the air collecting box 510 into the sealing airbag 401, so that the sealing airbag 401 expands, fills the gap between the connecting port 4 and the flask mouth, improves the sealing of the connection, and at the same time improves the stability of the connection.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary evaporator interface fixing device, comprising a fixing cylinder (1), characterized in that: A ring (2) is rotatably mounted on the outer surface of the fixed tube (1), a clamping member (3) is disposed on the outer surface of the ring (2), a connecting port (4) is provided on the left side of the fixed tube (1), a sealing airbag (401) is mounted around the inner wall of the connecting port (4), and a reinforcing mechanism (5) is disposed on the top of the ring (2); The reinforcing mechanism (5) comprises a fixing box (501), the fixing box (501) is fixedly installed on the top of the ring (2), the fixing box (501) is provided with an opening (502) on the top, a rotating block (503) is rotatably installed in the opening (502), a screw rod (504) is fixedly installed inside the rotating block (503), the outer surfaces of the two screw rods (504) are threadedly connected with sleeves (505), the opposite ends of the two sleeves (505) are fixedly installed with slide plates (506), the opposite sides of the two slide plates (506) are fixedly installed with push rods (507), the opposite ends of the two push rods (507) are fixedly installed with piston plates (508), the outer surfaces of the two piston plates (508) are provided with cylinders (509), and the opposite ends of the two cylinders (509) are fixedly installed with air collecting boxes (510).

2. A rotary evaporator interface fixing device according to claim 1, characterized in that: A support ring located on the outer surfaces of the two screw rods (504) is fixedly mounted on the inner top wall of the fixing box (501), and the two screw rods (504) are rotatably connected to the support ring.

3. A rotary evaporator interface fixing device according to claim 1, characterized in that: The two piston plates (508) and the two cylinders (509) are both cylindrical, and the two cylinders (509) are both compatible with the piston plates (508).

4. A rotary evaporator interface fixing device according to claim 1, characterized in that: The two slide plates (506) are both slidably mounted between the inner top wall and the inner bottom wall of the fixed box (501).

5. A rotary evaporator interface fixing device according to claim 1, characterized in that: An air inlet hole is provided between the opposite ends of the two cylinders (509) and the air collecting box (510), and an air inlet pipe is fixedly installed between the bottom of the fixing box (501) and the sealing airbag (401).

6. A rotary evaporator interface fixing device according to claim 1, characterized in that: An exhaust port is provided on the front side of the air collecting box (510), and a sealing plug is inserted into the exhaust port.

7. A rotary evaporator interface fixing device according to claim 1, characterized in that: The clamping member (3) comprises a support frame (301), and three support frames (301) are fixedly installed at equal distances on the outer surface of the ring (2), and claws (302) are rotatably installed on the three support frames (301), and springs (303) are fixedly installed between the right ends of the three claws (302) and the outer surface of the ring (2).

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