Circulating water type multipurpose vacuum pump special for rotary evaporation

Abstract

The utility model discloses a special circulating water type multipurpose vacuum pump for rotary evaporation, which relates to the field of circulating water type vacuum pumps and comprises a box body, a machine body is mounted at the top of the box body, and a discharging component is arranged at the upper part in the box body. The discharging assembly comprises a barrel installed on the upper portion of the interior of the box body, a first discharging opening formed in the upper portion of one side of the box body, a containing plate and a spring installed on one side of the top of the box body. Water can be filtered through the discharging assembly and the filter screen, impurities can be accumulated on the filter screen, when the impurities accumulated on the filter screen need to be cleaned, a pull rod can be pulled through a pull plate firstly, so that a plugging plate moves upwards and does not shield a first discharging opening and a second discharging opening any more, then a rotating shaft is rotated, and the impurities can be removed. When the rotating shaft rotates, the material pushing plate is driven to rotate, and when the material pushing plate rotates, impurities accumulated on the filter screen are pushed to move, so that the filter screen is prevented from being blocked by the impurities.

Description

Technical Field

[0001] This utility model relates to the field of circulating water vacuum pumps, specifically a circulating water multi-purpose vacuum pump for rotary evaporation. Background Technology

[0002] Rotary evaporators are widely used evaporation instruments in laboratories. A rotary evaporator consists of a rotary evaporator main unit and a water bath. The rotary evaporator main unit is generally composed of a motor, a distillation flask, a condenser, and a vacuum pump. When the vacuum pump is working, it creates a reduced pressure condition inside the distillation flask, under which volatile solvents are continuously distilled. In the current technology, the vacuum pump of the rotary evaporator is a circulating water multi-purpose vacuum pump.

[0003] A circulating water vacuum pump, also known as a water ring vacuum pump, is a type of rough vacuum pump. It can also be used as a compressor, called a water ring compressor. It is a low-pressure compressor. Circulating water vacuum pumps were initially used as self-priming water pumps, and later gradually applied to many industrial sectors such as petroleum, chemical, machinery, mining, light industry, pharmaceuticals, and food. In many industrial production processes, such as vacuum filtration, vacuum priming, vacuum evaporation, and vacuum concentration, water ring pumps are widely used.

[0004] According to Chinese Patent No. CN217682281U, a circulating water vacuum pump is disclosed. This utility model filters water by installing a filter. When water is added to the water tank through the inlet pipe, the water enters the filter and is purified by the filter plate. The filtered water then flows into the water tank, achieving the purpose of water purification. When cleaning the impurities filtered on the top of the filter plate, an electric push rod is activated, which moves the sealing plate. When the sealing plate moves, it no longer seals the collection box, causing a hydraulic rod to push a scraper to move on the top of the filter plate. As the scraper moves, it removes the impurities filtered on the top of the filter plate, allowing them to enter the collection box for collection, thus achieving the purpose of cleaning and collecting impurities and extending the service life of the filter plate.

[0005] Regarding the aforementioned patent content, a filter screen is installed to filter the added water, and a collection box is provided to facilitate pushing the impurities accumulated on the filter screen into the collection box. However, since the collection box is installed inside the box, it is difficult for workers to remove the collection box and clean the impurities inside when it is full of impurities. Consequently, it is inconvenient to remove the impurities from the box, and over time, the collection box can no longer collect impurities, thus affecting the efficiency of impurity collection and cleaning. Utility Model Content

[0006] Therefore, the purpose of this utility model is to provide a rotary evaporator-specific circulating water multi-purpose vacuum pump to solve the technical problem of inconvenience in removing collected impurities from the tank.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rotary evaporator-specific circulating water multi-purpose vacuum pump, comprising a housing, an organic body mounted on the top of the housing, a discharge assembly located above the interior of the housing, and the discharge assembly comprising a cylinder mounted above the interior of the housing, a first discharge port located above one side of the housing, a placement plate, and a spring mounted on one side of the top of the housing. A filter screen is mounted on the inner wall of the cylinder, and a fixing plate is located on the top of the filter screen. A rotating shaft is connected to the top of the fixing plate via a bearing, and a pusher plate is mounted on one side of the rotating shaft. A second discharge port is opened on one side of the cylinder, and a discharge plate extending into the interior of the first discharge port is also mounted below one side of the cylinder.

[0008] By adopting the above technical solution, the filter screen can filter water, and impurities will accumulate on the filter screen. The fixed plate is designed to support the rotating shaft, and the rotating shaft will drive the pusher plate to rotate when it rotates.

[0009] Furthermore, a pull plate is connected to the top of the spring, and a pull rod that penetrates into the interior of the housing is installed at the bottom of the pull plate, with a sealing plate installed at the bottom of the pull rod.

[0010] By adopting the above technical solution, when material needs to be discharged, the staff can pull the lever upwards using the pull plate, and the lever will cause the sealing plate to move upwards, so that the sealing plate no longer blocks the first and second discharge ports.

[0011] Furthermore, a collection box is placed on top of the placement plate, and the collection box is located below one side of the first discharge port.

[0012] By adopting the above technical solution, the collection box can collect impurities discharged from the first discharge port, preventing impurities from falling to the ground.

[0013] Furthermore, a motor is installed inside the machine body, and a heat dissipation vent is provided on one side of the machine body, with a dustproof mesh installed inside the heat dissipation vent.

[0014] By adopting the above technical solution, the heat dissipation vents facilitate heat dissipation, while the dust filter prevents external dust from entering the machine body.

[0015] Furthermore, a vacuum pressure gauge and a switch are respectively installed on the outer surface of the machine body.

[0016] By adopting the above technical solution, the switch setting facilitates the control of the vacuum pump operation.

[0017] Furthermore, a water inlet pipe is installed on the top of the box, and a cap is threaded to the top of the water inlet pipe.

[0018] By adopting the above technical solution, when water needs to be added to the tank, the cover can be rotated to unscrew the cover from the water inlet pipe, and then water can be added to the tank through the water inlet pipe.

[0019] Furthermore, the bottom of the pusher plate contacts the top of the filter screen, and the top of the filter screen is sloped.

[0020] By adopting the above technical solution, when the pusher plate rotates, it will push the impurities accumulated on the filter screen to move. When the impurities are pushed to the vicinity of the second discharge port, the impurities will slide into the second discharge port.

[0021] Furthermore, one side of the sealing plate is fitted to the outer wall of the cylinder, and the other side of the sealing plate is fitted to the inner wall of the box.

[0022] By adopting the above technical solution, the sealing plate can block the second discharge port, preventing water or impurities from being discharged from the second discharge port at will.

[0023] Furthermore, one side of the discharge plate is inclined downward along the direction of the first discharge port, and the top of the discharge plate is smooth.

[0024] By adopting the above technical solution, impurities can slide through the discharge plate into the first discharge port and then be discharged through the first discharge port.

[0025] Furthermore, one side of the pusher plate is attached to the inner wall of the cylinder, and the filter screen is located directly below the water inlet pipe.

[0026] By adopting the above technical solution, water can be easily added into the tank through the inlet pipe, and then the water will flow to the filter screen, which can filter the water.

[0027] In summary, the present invention has the following main advantages:

[0028] 1. This utility model is equipped with a discharge component. The filter screen can filter water, and impurities will accumulate on the filter screen. When it is necessary to clean the impurities accumulated on the filter screen, the pull rod can be pulled by the pull plate to make the sealing plate move up and no longer block the first and second discharge ports. Then, the rotating shaft is rotated. When the rotating shaft rotates, it will drive the push plate to rotate. When the push plate rotates, it will push the impurities accumulated on the filter screen to move. When the impurities are pushed to the vicinity of the second discharge port, the impurities will slide into the second discharge port, and then be discharged through the discharge plate and the first discharge port, and fall into the collection box. In this way, the impurities accumulated on the filter screen can be cleaned quickly, preventing impurities from clogging the filter screen, and avoiding impurities from accumulating in the box, thereby improving the removal effect of impurities.

[0029] 2. This utility model is equipped with a pull rod, a sealing plate and a spring. After the impurities accumulated on the filter screen are cleaned out, the pull plate can be released. At this time, the spring contracts and drives the sealing plate to move down and reset, so that the sealing plate blocks the first discharge port and the second discharge port, improving the sealing performance of the box and preventing water or impurities from being discharged from the second discharge port at will. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the cylindrical structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the discharge plate structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the filter structure of this utility model.

[0035] In the diagram: 1. Housing; 2. Machine body; 3. Motor; 4. Heat dissipation vent; 5. Dustproof net; 6. Water inlet pipe; 7. Cover; 8. Vacuum pressure gauge; 9. Discharge assembly; 901. Cylinder; 902. Fixed plate; 903. Filter screen; 904. Placement plate; 905. Collection box; 906. First discharge port; 907. Discharge plate; 908. Sealing plate; 909. Pull rod; 910. Spring; 911. Pull plate; 912. Push plate; 913. Rotating shaft; 914. Second discharge port; 10. Switch. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] Example 1:

[0039] A type of rotary evaporator-specific circulating water multi-purpose vacuum pump, such as Figures 1-5As shown, the device includes a housing 1, with a body 2 mounted on top of the housing 1. A discharge assembly 9 is located inside the upper part of the housing 1. A motor 3 is installed inside the body 2. A vacuum pressure gauge 8 and a switch 10 are respectively installed on the outer surface of the body 2. The switch 10 is electrically connected to the motor 3. The switch 10 is designed to facilitate the control of the vacuum pump. A water inlet pipe 6 is also installed on the top of the housing 1. A cap 7 is threadedly connected to the top of the water inlet pipe 6. When water needs to be added to the housing 1, the cap 7 can be rotated to unscrew the cap 7 from the water inlet pipe 6, and then water can be added to the housing 1 through the water inlet pipe 6.

[0040] Specifically, the discharge assembly 9 includes a cylinder 901 installed inside the upper part of the housing 1, a first discharge port 906 located on one side of the housing 1, a placement plate 904, and a spring 910 installed on the top side of the housing 1. A filter screen 903 is installed on the inner wall of the cylinder 901, and a fixing plate 902 is provided on the top of the filter screen 903. The filter screen 903 can filter water, and impurities will accumulate on the filter screen 903. The top of the fixing plate 902 is connected to a rotating shaft 913 through a bearing. The fixing plate 902 is designed to facilitate rotation. The shaft 913 provides support, and when the shaft 913 rotates, it drives the pusher plate 912 to rotate. The top of the shaft 913 extends through to the top of the housing 1 and is connected to a turntable, which facilitates the rotation of the shaft 913 via the turntable. The pusher plate 912 is installed on one side of the shaft 913, and one side of the pusher plate 912 is in contact with the inner wall of the cylinder 901. The filter screen 903 is located directly below the water inlet pipe 6, so that after water is added into the housing 1 through the water inlet pipe 6, the water will flow onto the filter screen 903, which can then filter the water.

[0041] See Figures 2-5 A second discharge port 914 is provided on one side of the cylinder 901. A discharge plate 907 extending into the first discharge port 906 is also installed below one side of the cylinder 901. A collection box 905 is placed on top of the placement plate 904. The collection box 905 is located below one side of the first discharge port 906 and can collect impurities discharged from the first discharge port 906, preventing impurities from falling to the ground. The bottom of the pusher plate 912 contacts the top of the filter screen 903. The top of the screen 903 is sloped. When the pusher plate 912 rotates, it will push the impurities accumulated on the screen 903 to move. When the impurities are pushed to the vicinity of the second discharge port 914, the impurities will slide into the second discharge port 914. One side of the discharge plate 907 is inclined downward along the direction of the first discharge port 906. The top of the discharge plate 907 is smooth so that the impurities can slide through the discharge plate 907 into the first discharge port 906 and then be discharged through the first discharge port 906.

[0042] Example 2:

[0043] Based on the above embodiment one, in order to prevent water or impurities from being discharged randomly through the second discharge port 914, the following structure will be set.

[0044] Specifically, a pull plate 911 is connected to the top of the spring 910, and a pull rod 909 that penetrates into the interior of the housing 1 is installed at the bottom of the pull plate 911. A sealing plate 908 is installed at the bottom of the pull rod 909, and sealing gaskets are provided on both sides of the sealing plate 908. The sealing plate 908 can block the second discharge port 914 to prevent water or impurities from being discharged from the second discharge port 914 at will. One side of the sealing plate 908 is in contact with the outer wall of the cylinder 901, and the other side of the sealing plate 908 is in contact with the inner wall of the housing 1. When discharge is required, the operator can pull the pull rod 909 upward through the pull plate 911. The pull rod 909 will then move the sealing plate 908 upward, so that the sealing plate 908 no longer blocks the first discharge port 906 and the second discharge port 914.

[0045] Example 3:

[0046] Based on the above embodiment 1, the following structure will be set to facilitate heat dissipation inside the body 2.

[0047] See Figures 1-2 A heat dissipation vent 4 is provided on one side of the body 2. A dustproof mesh 5 is installed inside the heat dissipation vent 4. The heat dissipation vent 4 is designed to facilitate heat dissipation, while the dustproof mesh 5 is designed to prevent external dust from entering the body 2.

[0048] The working principle of this utility model is as follows: First, before using the circulating water vacuum pump, the operator can rotate the cover 7 to unscrew it from the water inlet pipe 6. Then, water is added into the housing 1 through the water inlet pipe 6. The water flows onto the filter screen 903, which filters the water. Impurities accumulate on the filter screen 903, while the water continues to flow downwards into the housing 1. When it is necessary to clean the impurities accumulated on the filter screen 903, the operator can first pull the pull plate 911. Rod 909 causes the sealing plate 908 to move upward and no longer block the first discharge port 906 and the second discharge port 914. Then, the rotating shaft 913 is rotated. When the rotating shaft 913 rotates, it will drive the pusher plate 912 to rotate. When the pusher plate 912 rotates, it will push the impurities accumulated on the filter screen 903 to move. When the impurities are pushed to the vicinity of the second discharge port 914, the impurities will slide into the second discharge port 914, and then be discharged through the discharge plate 907 and the first discharge port 906, and fall into the collection box 905.

[0049] After the impurities accumulated on the filter screen 903 are removed, the pull plate 911 can be released. At this time, the spring 910 contracts and drives the sealing plate 908 to move down and reset, so that the sealing plate 908 blocks the first discharge port 906 and the second discharge port 914, improving the sealing performance of the box 1.

[0050] The heat dissipation vent 4 facilitates heat dissipation, while the dust filter 5 prevents external dust from entering the body 2 through the heat dissipation vent 4.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A rotary evaporator-specific circulating water multi-purpose vacuum pump, comprising a housing (1), characterized in that: An organic body (2) is installed on the top of the box (1). A discharge assembly (9) is provided on the upper part of the inside of the box (1). The discharge assembly (9) includes a cylinder (901) installed on the upper part of the inside of the box (1), a first discharge port (906) and a placement plate (904) located on the upper side of one side of the box (1), and a spring (910) installed on the upper side of the top of the box (1). A filter screen (903) is installed on the inner wall of the cylinder (901). A fixing plate (902) is provided on the top of the filter screen (903). A rotating shaft (913) is connected to the top of the fixing plate (902) through a bearing. A pusher plate (912) is installed on one side of the rotating shaft (913). A second discharge port (914) is opened on one side of the cylinder (901). A discharge plate (907) extending into the inside of the first discharge port (906) is also installed on the lower side of one side of the cylinder (901).

2. The rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 1, characterized in that: The top of the spring (910) is connected to a pull plate (911), and the bottom of the pull plate (911) is fitted with a pull rod (909) that penetrates into the box (1), and the bottom of the pull rod (909) is fitted with a sealing plate (908).

3. The rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 1, characterized in that: A collection box (905) is placed on top of the placement plate (904), and the collection box (905) is located below one side of the first discharge port (906).

4. The rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 1, characterized in that: The machine body (2) is equipped with a motor (3), and a heat dissipation vent (4) is provided on one side of the machine body (2). A dustproof net (5) is installed inside the heat dissipation vent (4).

5. A rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 1, characterized in that: Vacuum pressure gauge (8) and switch (10) are respectively installed on the outer surface of the body (2).

6. The rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 1, characterized in that: The top of the box (1) is also equipped with a water inlet pipe (6), and the top end of the water inlet pipe (6) is threaded with a cap (7).

7. A rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 1, characterized in that: The bottom of the pusher plate (912) contacts the top of the filter screen (903), and the top of the filter screen (903) is set at an angle.

8. A rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 2, characterized in that: One side of the sealing plate (908) is attached to the outer wall of the cylinder (901), and the other side of the sealing plate (908) is attached to the inner wall of the box (1).

9. A rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 1, characterized in that: The discharge plate (907) is inclined downward along the direction of the first discharge port (906) on one side, and the top of the discharge plate (907) is smooth.

10. A rotary evaporator-specific circulating water multi-purpose vacuum pump according to claim 6, characterized in that: One side of the pusher plate (912) is attached to the inner wall of the cylinder (901), and the filter screen (903) is located directly below the water inlet pipe (6).

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