Suction filtration funnel with vacuum heat preservation effect

Abstract

The utility model discloses a suction filtration funnel with a vacuum heat preservation effect, and belongs to the field of medical intermediates. The suction filtration funnel with the vacuum heat preservation effect comprises a conical barrel, and further comprises a filter disc detachably connected in the conical barrel, the infusion tube is fixedly communicated with the conical barrel; the suction filtration pipe is connected to the liquid conveying pipe in a sleeving mode, and the suction filtration pipe and the conical barrel are integrally formed; the connecting pipe is fixedly communicated with the suction filtration pipe; according to the utility model, the material in the conical barrel is pressurized by the pressurizing disc, so that the liquid material quickly flows out through the filtering holes of the filtering disc, the solid-liquid suction filtration separation efficiency of the material is further improved, and the conical barrel is covered and sealed by the sealing cover, so that the heat loss of the to-be-treated material poured into the conical barrel can be further reduced; therefore, the material to be treated can be subjected to heat insulation or cold insulation, so that the state of the material to be subjected to suction filtration is kept stable, and the suction filtration effect cannot be influenced by dissolution or precipitation caused by temperature change.

Description

Technical Field

[0001] The utility model belongs to the technical field of suction filtration funnels in pharmaceutical intermediates, and specifically relates to a suction filtration funnel with vacuum heat preservation effect. Background Art

[0002] The suction funnel is a device used for common separation operations in the separation process of chemical experiments. When the reaction of a heterogeneous reaction system is completed, the solid product is slurried or recrystallized, a suction funnel is needed to quickly separate the solid and liquid, and then the required solid or liquid can be used for subsequent operations.

[0003] In the laboratory filtration process, the solid-liquid mixture is poured into a funnel, and air is pumped with a vacuum pump to form a negative pressure at the funnel outlet. The liquid flows out through the filter holes of the filter plate, and the solid matter is blocked in the funnel, thereby forming solid-liquid separation. However, the efficiency of the existing filtration funnel when filtering and separating the solid-liquid mixture needs to be further improved. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a suction filtration funnel with a vacuum heat preservation effect which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A suction filtration funnel with a vacuum insulation effect comprises a conical barrel, and also comprises: a filter plate detachably connected to the conical barrel; an infusion tube fixedly connected to the conical barrel; a suction filtration tube, which is sleeved on the infusion tube and formed integrally with the conical barrel; a connecting tube fixedly connected to the suction filtration tube; a sealing cover detachably connected to the conical barrel; a pressure plate slidably connected to the conical barrel; a sleeve fixedly connected to the sealing cover, wherein a piston plate is slidably connected to the sleeve, a push rod is fixedly connected to the piston plate, one end of the push rod passes through the sealing cover and is fixedly connected to the pressure plate, and an air intake pipe is fixedly connected to the sleeve; an elastic reset member is arranged in the sleeve and located between the sealing cover and the piston plate; a sealing connector is arranged on the suction filtration tube.

[0007] Preferably, the sleeve is fixedly connected to an exhaust pipe, and the exhaust pipe is provided with a valve switch.

[0008] Furthermore, the elastic reset member comprises a spring, the spring is sleeved on the push rod, one end of the spring is fixedly connected to the piston disc, and the other end of the spring is fixedly connected to the sealing cover.

[0009] In order to facilitate the disassembly and assembly of the filter disc by the staff, preferably, a support ring is fixedly connected in the conical cylinder, a sealing gasket is provided on the support ring, the filter disc is threadedly connected to the support ring, and the sealing gasket is fitted with the filter disc.

[0010] In order to increase the sealing performance of the connection between the suction tube and the external suction bottle, preferably, the sealing connector includes a sealing plug, which is fixedly connected to the end of the suction tube away from the conical cylinder and is arranged in a conical shape.

[0011] In order to keep the material to be filtered warm or cold, preferably, a vacuum chamber is provided between the inner and outer walls of the conical cylinder.

[0012] In order to facilitate the disassembly and assembly of the sealing cover by the staff, preferably, it also includes fixing bolts, and the sealing cover is detachably connected to the conical cylinder through the fixing bolts.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0014] The utility model applies pressure to the material in the conical cylinder by means of a pressure plate, so that the liquid material quickly flows out through the filter holes of the filter plate, thereby accelerating the efficiency of solid-liquid filtration separation of the material, and seals the conical cylinder by means of a sealing cover, thereby reducing the heat loss of the material to be processed poured into the conical cylinder, thereby keeping the material to be processed warm or cold, so that the state of the material to be filtered remains stable, and will not dissolve or precipitate due to temperature changes, thereby affecting the filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the conical cylinder, filter disc, suction filter tube and infusion tube of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model;

[0017] Figure 3 It is a cross-sectional view of the sleeve and the sealing cover of the utility model.

[0018] In the figure: 1. conical cylinder; 101. filter plate; 102. support ring; 103. sealing gasket; 104. infusion tube; 2. vacuum chamber; 3. suction filter tube; 301. connecting tube; 302. sealing plug; 4. sealing cover; 401. fixing bolt; 5. sleeve; 501. piston plate; 502. push rod; 503. pressure plate; 504. spring; 505. intake pipe; 506. exhaust pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0020] Embodiment 1:

[0021] Reference Figure 1 , Figure 2 , Figure 3 , a suction filtration funnel with vacuum insulation effect, comprising a conical tube 1, and also comprising: a filter disc 101 detachably connected to the conical tube 1; an infusion tube 104, fixedly connected to the conical tube 1; a suction filtration tube 3, sleeved on the infusion tube 104, and integrally formed with the conical tube 1; a connecting tube 301, fixedly connected to the suction filtration tube 3; a sealing cover 4, detachably connected to the conical tube 1; a pressure plate 503, slidably connected to the conical tube 1; a sleeve 5, fixedly connected to the sealing cover 4, wherein a piston disc 501 is slidably connected in the sleeve 5, a push rod 502 is fixedly connected to the piston disc 501, one end of the push rod 502 passes through the sealing cover 4 and is fixedly connected to the pressure plate 503, and an air inlet pipe 505 is fixedly connected to the sleeve 5; an elastic reset member is arranged in the sleeve 5 and is located between the sealing cover 4 and the piston disc 501; a sealing connector is arranged on the suction filtration tube 3.

[0022] The sleeve 5 is fixedly connected to an exhaust pipe 506 , and the exhaust pipe 506 is provided with a valve switch.

[0023] The elastic reset member includes a spring 504 , which is sleeved on the push rod 502 , and one end of the spring 504 is fixedly connected to the piston disc 501 , and the other end of the spring 504 is fixedly connected to the sealing cover 4 .

[0024] The sealing connector includes a sealing plug 302 , which is fixedly connected to one end of the suction filter tube 3 away from the conical cylinder 1 , and the sealing plug 302 is arranged in a conical shape.

[0025] It also includes a fixing bolt 401 , through which the sealing cover 4 is detachably connected to the conical cylinder 1 .

[0026] When in use, firstly, the suction filter tube 3 is inserted into the suction filter bottle, so that the suction filter tube 3 squeezes the sealing plug 302 and fits tightly with the inner wall of the suction filter bottle, thereby increasing the sealing performance of the connection between the suction filter tube 3 and the suction filter bottle, and then the material to be filtered is poured into the conical cylinder 1, and then the sealing cover 4 for closing the conical cylinder 1 is covered, and the fixing bolts 401 for limiting and fixing the sealing cover 4 are screwed on, so as to improve the stability of the sealing cover 4 covering the conical cylinder 1;

[0027] After the above preparations are completed, an external vacuum pump is connected, so that the input end of the vacuum pump is connected to the connecting pipe 301, and the output end is connected to the air inlet pipe 505. Then the vacuum pump is started, and the vacuum pump extracts the gas in the suction bottle, so that a negative pressure is generated in the suction bottle. Then, under the action of the negative pressure, the liquid material in the conical cylinder 1 quickly flows out through the filter holes of the filter disc 101, while the solid matter in the material is blocked in the conical cylinder 1, thereby realizing the rapid solid-liquid separation of the material, and then the liquid material flowing out of the conical cylinder 1 flows through the infusion pipe 104. Into the suction bottle, at the same time, the gas extracted from the liquid extraction bottle is transported into the sleeve 5 through the connecting pipe 301 and the air inlet pipe 505 in turn, so that the gas transported into the sleeve 5 pushes the piston disc 501 to move downward and compresses the spring 504. At the same time, the piston disc 501 pushes the pressure disc 503 to move downward synchronously through the push rod 502, thereby applying pressure to the material in the conical cylinder 1, so that the liquid material quickly flows out through the filter holes of the filter disc 101, further accelerating the efficiency of solid-liquid suction filtration and separation of the material. A one-way valve is arranged on the air inlet pipe 505.

[0028] After the solid-liquid separation of the material is completed, the gas can be discharged from the sleeve 5 through the exhaust pipe 506 by opening the valve switch on the exhaust pipe 506, and then the compressed spring 504 automatically resets under its own elastic potential energy, and at the same time pushes the piston disc 501 to slide upward in the sleeve 5 to reset synchronously.

[0029] Embodiment 2:

[0030] Reference Figure 1 , a suction filtration funnel with vacuum insulation effect, which is basically the same as Example 1, and further, a support ring 102 is fixedly connected inside the conical cylinder 1, a sealing gasket 103 is arranged on the support ring 102, a filter disc 101 is threadedly connected to the support ring 102, and the sealing gasket 103 is fitted with the filter disc 101;

[0031] When the filter disc 101 needs to be cleaned, since the filter disc 101 and the support ring 102 are threadedly connected, it is convenient for the staff to disassemble and clean the filter disc 101. After the filter disc 101 is cleaned, the filter disc 101 can be easily installed back into the conical cylinder 1 through the threaded connection, making the disassembly and assembly of the filter disc 101 more convenient.

[0032] It should be noted that the sealing gasket 103 on the support ring 102 fits tightly with the filter disc 101, thereby increasing the sealing performance at the connection between the filter disc 101 and the support ring 102, preventing the material from leaking through the gap at the connection between the filter disc 101 and the support ring 102, thereby ensuring sufficient filtration of the material.

[0033] Embodiment 3:

[0034] Reference Figure 1 , Figure 2 , a suction filtration funnel with a vacuum insulation effect, which is basically the same as Example 1, and further, a vacuum chamber 2 is opened between the inner and outer walls of the conical tube 1; before the material is poured into the conical tube 1 for suction filtration, the uncontrolled propagation in the vacuum chamber 2 limits the heat conduction, thereby reducing the heat loss, so that the material to be processed can be kept warm or cold. At the same time, the conical tube 1 is sealed by covering the sealing cover 4, thereby reducing the heat loss of the material to be processed poured into the conical tube 1, and improving the effect of keeping the material warm or cold.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A suction filtration funnel with vacuum heat preservation effect, comprising a conical tube (1), characterized in that: Also includes: A filter disc (101) detachably connected to the conical cylinder (1); An infusion tube (104) fixedly connected to the conical tube (1); A suction filter tube (3) is sleeved on the infusion tube (104) and is integrally formed with the conical cylinder (1); A connecting pipe (301) fixedly connected to the suction filter pipe (3); A sealing cover (4) detachably connected to the conical cylinder (1); A pressure plate (503) slidably connected in the conical cylinder (1); The sleeve (5) is fixedly connected to the sealing cover (4). The sleeve (5) is slidably connected with a piston disk (501), the piston disk (501) is fixedly connected with a push rod (502), one end of the push rod (502) passes through the sealing cover (4) and is fixedly connected with a pressure plate (503), and the sleeve (5) is fixedly connected with an air intake pipe (505); An elastic return member is arranged in the sleeve (5) and located between the sealing cover (4) and the piston disc (501); A sealing connection piece is arranged on the suction filter tube (3).

2. A suction filtration funnel with vacuum insulation effect according to claim 1, characterized in that: The sleeve (5) is fixedly connected to an exhaust pipe (506), and the exhaust pipe (506) is provided with a valve switch.

3. A suction filtration funnel with vacuum insulation effect according to claim 2, characterized in that: The elastic return member comprises a spring (504), the spring (504) is sleeved on the push rod (502), one end of the spring (504) is fixedly connected to the piston disc (501), and the other end of the spring (504) is fixedly connected to the sealing cover (4).

4. The suction filtration funnel with vacuum insulation effect according to claim 1, characterized in that: A support ring (102) is fixedly connected inside the conical cylinder (1), a sealing gasket (103) is arranged on the support ring (102), the filter disc (101) is threadedly connected to the support ring (102), and the sealing gasket (103) fits the filter disc (101).

5. The suction filtration funnel with vacuum insulation effect according to claim 1, characterized in that: The sealing connection part comprises a sealing plug (302), wherein the sealing plug (302) is fixedly connected to an end of the suction filter tube (3) away from the conical cylinder (1), and the sealing plug (302) is arranged in a conical shape.

6. The suction filtration funnel with vacuum heat preservation effect according to claim 1, characterized in that: A vacuum chamber (2) is provided between the inner and outer walls of the conical cylinder (1).

7. The suction filtration funnel with vacuum heat preservation effect according to claim 1, characterized in that: It also comprises a fixing bolt (401), and the sealing cover (4) is detachably connected to the conical cylinder (1) via the fixing bolt (401).

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