Earthworm protein concentration and purification device

Abstract

The invention provides an earthworm protein concentration and purification device, and relates to the technical field of earthworm protein processing. A feeding hopper is arranged at a feeding opening in the top of the conveying cylinder, a first motor is installed outside the conveying cylinder, a spiral conveying shaft is connected into the conveying cylinder, and a driving shaft of the first motor is connected with the spiral conveying shaft. A stress piece is installed outside the conveying cylinder, and a baffle is connected into the stress piece. According to the invention, the double springs are arranged, so that the ejection resistance of a stressed part is effectively increased, and the content of earthworm protein liquid in earthworm materials is effectively reduced; and the earthworm protein liquid entering the liquid discharge cavity is filtered through the filter screen II, so that small-particle earthworm residues contained in the earthworm protein liquid are removed, and the impurity removal and purification effects of the earthworm protein liquid are guaranteed. The problems that in the application process of an existing earthworm protein concentration and purification device, only part of earthworm protein liquid can be obtained, much earthworm protein liquid is still reserved in earthworm materials, and waste is caused are solved.

Description

Technical Field

[0001] The invention relates to the technical field of earthworm protein processing, in particular to a device for concentrating and purifying earthworm protein. Background Art

[0002] Earthworms are rich in proteins, many of which are biologically active and have nutritional value. Due to its rich amino acid composition and bioactive peptides, earthworm protein has a wide range of application potential in food, medicine and agriculture. In order to take advantage of these potential benefits of earthworm protein, a purification device is needed to concentrate and purify earthworm protein so that protein can be effectively extracted and purified from earthworms.

[0003] During the application of the existing earthworm protein concentration and purification devices, the extraction effect of the earthworm protein liquid contained in the earthworm material is poor. Only part of the earthworm protein liquid can be obtained, and a large amount of earthworm protein liquid remains in the earthworm material, which is easy to cause waste. In addition, the extracted earthworm protein liquid is prone to contain small particles of earthworm residues, which affects the product quality. It is also necessary to manually pour it into the purification equipment for a series of filtration operations, and the process is relatively cumbersome. Summary of the invention

[0004] The present disclosure relates to an earthworm protein concentration and purification device, which solves the problem that the existing earthworm protein concentration and purification device has a poor effect on extracting earthworm protein liquid contained in earthworm materials during application, and can only obtain part of the earthworm protein liquid, and more earthworm protein liquid remains in the earthworm material, which is easy to cause waste, and the extracted earthworm protein liquid is easy to contain small particles of earthworm residues, which affects the product quality, and it needs to be manually poured into a purification device for a series of filtering operations, which is a relatively cumbersome process.

[0005] In a first aspect of the present disclosure, a device for concentrating and purifying earthworm protein is provided, which specifically comprises: a conveying cylinder; a feeding funnel is arranged at a feeding port on the top of the conveying cylinder, a motor 1 is installed on the outside of the conveying cylinder, a spiral conveying shaft is connected to the inside of the conveying cylinder, and a driving shaft of the motor 1 is connected to the spiral conveying shaft; a force-bearing member is installed on the outside of the conveying cylinder, and a baffle is connected to the inside of the force-bearing member; an outer shell is installed on the outside of the conveying cylinder, a one-way valve 1 is connected to the bottom of the outer shell, a filter is connected to the bottom of the one-way valve 1, and a one-way valve 2 is connected to the bottom of the filter; a filter element and a piston are installed inside the filter, a motor 2 is installed outside the filter, a turntable is installed on the driving shaft of the motor 2, a transmission rod is connected to the outside of the turntable, and the transmission rod is connected to the piston.

[0006] Furthermore, a drainage hole is arranged outside the conveying cylinder, a filter screen is arranged inside the conveying cylinder, the filter screen is located inside the drainage hole, the spiral conveying shaft rotates inside the conveying cylinder, and the outer shell is mounted outside the drainage hole.

[0007] Furthermore, a guide rod is provided inside the force-bearing member, and a through hole is provided inside the baffle plate. The guide rod passes through the through hole, and the baffle plate contacts the discharge port of the conveying cylinder. Two inner and outer springs are mounted on the outside of the guide rod, and one end of the spring contacts the force-bearing member, and the other end of the spring contacts the baffle plate. The double spring setting is adopted to effectively increase the resistance of the force-bearing member to push open, thereby effectively reducing the content of earthworm protein liquid in the earthworm material and improving the extraction effect of the earthworm protein liquid.

[0008] Furthermore, a liquid inlet chamber and a liquid discharge chamber are provided inside the filter. The liquid inlet chamber is connected to the inside of the shell through a second one-way valve, and the liquid discharge chamber is connected to the second one-way valve. The filter element is located in the liquid inlet chamber, and a second filter screen is provided outside the filter element. The mesh number of the second filter screen is greater than the mesh number of the first filter screen, and the interior of the filter element is connected to the liquid discharge chamber.

[0009] Furthermore, the piston is slidably connected to the drainage chamber, and a straight rod is provided on the outside of the piston. The straight rod slides through the inside of the filter, one end of the transmission rod is rotatably connected to the turntable, and the other end of the transmission rod is rotatably connected to the straight rod. Motor 2 drives the turntable to rotate, and the turntable drives the piston to reciprocate in the drainage chamber through the transmission rod. When the piston moves outward, the earthworm protein liquid in the liquid inlet chamber is drawn into the drainage chamber through the filter element, and the earthworm protein liquid in the outer shell is drawn into the liquid inlet chamber through the one-way valve 2. The earthworm protein liquid entering the drainage chamber is filtered through the filter screen 2 to remove small particles of earthworm residues contained therein.

[0010] Furthermore, a sealing cover is buckled on the outside of the filter, the sealing cover is connected to the liquid inlet chamber, a sealing ring is installed inside the sealing cover, the sealing ring is in contact with the filter, a second spring is installed inside the sealing cover, the second spring is in contact with the outside of the filter element, the sealing ring seals the connection between the filter and the sealing cover, the second spring applies a thrust to the filter element, thereby fixing the filter element and ensuring the stability of the connection between the inside of the filter element and the liquid discharge chamber.

[0011] Furthermore, a card block is arranged in a surrounding shape on the outside of the sealing cover, an L-shaped card slot is arranged in a surrounding shape on the outside of the sealing cover, the card block is connected to the L-shaped card slot, a guide block is arranged in a surrounding shape on the outside of the sealing cover, a locking sleeve is slidably connected to the outside of the filter, a movable hole is arranged in a surrounding shape on the inside of the locking sleeve, the guide block is slidably connected to the movable hole, and the sealing cover and the filter are connected together by a card connection, so that the sealing cover is easier to disassemble and assemble, and it is convenient to regularly take out the filter element and clean the small particles of earthworm residues intercepted by the outside of the filter screen to ensure the fluidity of the filter element itself. The guide block slides with the movable hole to guide the movement of the locking sleeve.

[0012] Furthermore, a spring three is mounted on the outside of the filter, one end of the spring three is in contact with the filter, and the other end of the spring three is in contact with the lock sleeve. An insert block is arranged on the outside of the lock sleeve in a surrounding shape, and the insert block is inserted into the notch of the L-shaped slot. The guide block slides with the movable hole to guide the movement of the lock sleeve. The spring three has an elastic reset effect on the lock sleeve. The insert block is inserted into the L-shaped slot to lock and fix the sealing cover, prevent the sealing cover from rotating, and ensure the sealing inside the liquid inlet cavity and the stability of the filter element state.

[0013] The present invention provides an earthworm protein concentration and purification device, which has the following beneficial effects: When the present invention is in use, the force-bearing member is influenced by the thrust of the spring and is in close contact with the discharge port of the conveying cylinder. After the crushed earthworm material is poured into the conveying cylinder through the feeding funnel, the motor drives the spiral conveying shaft to rotate, and gradually conveys the earthworm material to the discharge port. The earthworm material is squeezed by the spiral conveying shaft, so that the earthworm protein liquid contained therein flows into the outer shell through the filter screen. The earthworm material after deliquidation and solidification pushes the baffle open and is discharged from the discharge port of the conveying cylinder. The double spring setting is adopted to effectively increase the pushing resistance of the force-bearing member, thereby effectively reducing the earthworm protein liquid content in the earthworm material and improving the earthworm protein liquid extraction effect.

[0014] In addition, motor 2 drives the turntable to rotate, and the turntable drives the piston to reciprocate in the discharge chamber through the transmission rod. When the piston moves outward, the earthworm protein liquid in the liquid inlet chamber is drawn into the discharge chamber through the filter element, and the earthworm protein liquid in the outer shell is drawn into the liquid inlet chamber through the one-way valve 2. The earthworm protein liquid entering the discharge chamber is filtered through the filter screen 2 to remove small particles of earthworm residues contained therein, thereby ensuring the effect of removing impurities and purifying the earthworm protein liquid. When the piston moves inward, the earthworm protein liquid in the discharge chamber is discharged into the collection bucket placed in advance below through the one-way valve 2. The whole process is automated to improve the efficiency of concentrating and purifying the earthworm protein liquid.

[0015] In addition, the sealing cover is connected to the filter by a snap-fit ​​method, making it easier to disassemble and assemble the sealing cover, and convenient for regularly taking out the filter element to clean the small particles of earthworm residues intercepted by the outside of the filter screen 2 to ensure the flow of the filter element itself. The sealing ring has a sealing effect on the connection part. The spring 2 applies a thrust to the filter element to fix the filter element and ensure the stability of the connection between the inside of the filter element and the drainage cavity. The guide block slides with the movable hole to guide the movement of the lock sleeve. The spring 3 has an elastic reset effect on the lock sleeve. When the block moves When it moves to the innermost end of the L-shaped slot, the notch of the L-shaped slot coincides with the position of the insert block, and the locking sleeve is moved and reset under the influence of the third thrust of the spring, so that the insert block is inserted into the L-shaped slot, and the sealing cover is fixed by the locking sleeve to prevent the sealing cover from rotating, thereby ensuring the sealing inside the liquid inlet chamber and the stability of the filter element state; when the filter element needs to be taken out for cleaning, the locking sleeve is moved in the opposite direction, the third force of the spring is gradually contracted, the insert block is separated from the L-shaped slot, and the sealing cover can be rotated to separate the sealing cover from the filter, and the filter element can be taken out from the inside for cleaning, which is simple and time-saving to operate.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 The overall axial side structure schematic diagram of the present application is shown; Figure 2 A schematic diagram of the separation structure of the conveying cylinder and the force-bearing member of the present application is shown; Figure 3 A schematic diagram of the cut-away structure of the conveying cylinder and the housing of the present application is shown; Figure 4 A schematic diagram of the split structure of the force-bearing member, baffle and spring of the present application is shown; Figure 5 A schematic diagram of the connection structure between the filter and the sealing cover of the present application is shown; Figure 6 A schematic diagram of the separation structure of the filter and the sealing cover of the present application is shown; Figure 7 The schematic diagram of the internal cross-section structure of the filter of the present application is shown; Figure 8 The schematic diagram of the filter element axial side structure of the present application is shown; Fig. 9A schematic diagram of the cut-and-disassembled structure of the sealing cover and the locking sleeve of the present application is shown.

[0020] Reference numerals list 1. Conveying cylinder; 101. Drain hole; 102. Filter screen 1; 103. Feeding funnel; 2. Motor 1; 3. Screw conveying shaft; 4. Force-bearing member; 401. Guide rod; 5. Baffle; 501. Through hole; 6. Spring 1; 7. Housing; 8. One-way valve 1; 9. Filter; 901. Liquid inlet chamber; 902. Drain chamber; 903. Block; 904. Guide block; 10. One-way valve 2; 11. Sealing cover; 1101. Sealing ring; 1102. L-shaped slot; 12. Filter element; 1201. Filter screen 2; 13. Spring 2; 14. Piston; 1401. Straight rod; 15. Motor 2; 16. Turntable; 17. Transmission rod; 18. Lock sleeve; 1801. Movable hole; 1802. Insert block; 19. Spring 3. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 9 : The present invention proposes an earthworm protein concentration and purification device, comprising: a conveying cylinder 1; a feeding funnel 103 is arranged at the feeding port on the top of the conveying cylinder 1; a motor 2 is installed outside the conveying cylinder 1, a spiral conveying shaft 3 is connected inside the conveying cylinder 1, and the driving shaft of the motor 2 is connected to the spiral conveying shaft 3; a force-bearing member 4 is installed outside the conveying cylinder 1, and a baffle 5 is connected inside the force-bearing member 4; a shell 7 is installed outside the conveying cylinder 1, a one-way valve 8 is connected to the bottom of the shell 7, and a filter 9 is connected to the bottom of the one-way valve 8. The bottom of the filter 9 is connected to a check valve 10; a filter element 12 and a piston 14 are installed inside the filter 9, a motor 15 is installed outside the filter 9, a turntable 16 is installed on the drive shaft of the motor 15, a transmission rod 17 is connected to the outside of the turntable 16, and the transmission rod 17 is connected to the piston 14; a discharge hole 101 is arranged outside the conveying cylinder 1, a filter screen 102 is arranged inside the conveying cylinder 1, and the filter screen 102 is located inside the discharge hole 101, the spiral conveying shaft 3 rotates inside the conveying cylinder 1, and the outer shell 7 is covered with Installed outside the drainage hole 101; a guide rod 401 is arranged inside the force-bearing member 4, a through hole 501 is arranged inside the baffle 5, the guide rod 401 runs through the through hole 501, the baffle 5 contacts the discharge port of the conveying cylinder 1, and two inner and outer springs 6 are set outside the guide rod 401, one end of the spring 6 contacts the force-bearing member 4, and the other end of the spring 6 contacts the baffle 5; the force-bearing member 4 is in close contact with the discharge port of the conveying cylinder 1 under the thrust of the spring 6, when the crushed earthworm material is poured into the feed funnel 103 After entering the conveying cylinder 1, the motor 2 drives the spiral conveying shaft 3 to rotate, and gradually conveys the earthworm material to the discharge port. The earthworm material is squeezed by the spiral conveying shaft 3, so that the earthworm protein liquid contained therein flows into the outer shell 7 through the filter screen 102. The deliquidated and solidified earthworm material pushes the baffle 5 open and is discharged from the discharge port of the conveying cylinder 1. The double spring 6 is set to effectively increase the pushing resistance of the force-bearing member 4, thereby effectively reducing the earthworm protein liquid content in the earthworm material and improving the earthworm protein liquid extraction effect.

[0023] Embodiment 2, on the basis of embodiment 1, a liquid inlet chamber 901 and a liquid discharge chamber 902 are provided inside the filter 9, the liquid inlet chamber 901 is communicated with the inside of the housing 7 through a second one-way valve 10, the liquid discharge chamber 902 is communicated with the second one-way valve 10, the filter element 12 is located in the liquid inlet chamber 901, a second filter screen 1201 is provided outside the filter element 12, the mesh number of the second filter screen 1201 is greater than the mesh number of the first filter screen 102, the inside of the filter element 12 is communicated with the liquid discharge chamber 902, the piston 14 is slidably connected to the liquid discharge chamber 902, a straight rod 1401 is provided outside the piston 14, the straight rod 1401 slides through the inside of the filter 9, one end of the transmission rod 17 is rotatably connected to the turntable 16, and the other end of the transmission rod 17 is rotatably connected to the straight rod 1401; By adopting the above technical scheme, the motor 2 15 drives the turntable 16 to rotate, and the turntable 16 drives the piston 14 to move back and forth in the drainage chamber 902 through the transmission rod 17. When the piston 14 moves outward, the earthworm protein liquid in the liquid inlet chamber 901 is drawn into the drainage chamber 902 through the filter element 12, and the earthworm protein liquid in the outer shell 7 is drawn into the liquid inlet chamber 901 through the one-way valve 2 10. The earthworm protein liquid entering the drainage chamber 902 is filtered through the filter screen 2 1201 to remove small particles of earthworm residues contained therein, thereby ensuring the impurity removal and purification effect of the earthworm protein liquid. When the piston 14 moves inward, the earthworm protein liquid in the drainage chamber 902 is discharged into the collection bucket placed in advance below through the one-way valve 2 10. The whole process is automated to improve the concentration and purification efficiency of the earthworm protein liquid.

[0024] Embodiment 3, on the basis of Embodiment 1 and Embodiment 2, the filter 9 is buckled with a sealing cover 11, the sealing cover 11 is connected with the liquid inlet chamber 901, a sealing ring 1101 is installed inside the sealing cover 11, the sealing ring 1101 is in contact with the filter 9, a spring 13 is installed inside the sealing cover 11, the spring 13 is in contact with the outside of the filter element 12, a card block 903 is arranged in a surrounding shape on the outside of the sealing cover 11, and an L-shaped card slot 1102 is arranged on the outside of the sealing cover 11, and the card block 903 is connected to the L-shaped card slot 1 102, the sealing cover 11 is provided with a guide block 904 in a surrounding shape on the outside, the filter 9 is slidably connected with a lock sleeve 18 on the outside, the lock sleeve 18 is provided with a movable hole 1801 in a surrounding shape on the inside, the guide block 904 is slidably connected to the movable hole 1801, the filter 9 is provided with a spring 3 19 on the outside, one end of the spring 3 19 is in contact with the filter 9, and the other end of the spring 3 19 is in contact with the lock sleeve 18, the lock sleeve 18 is provided with an insert block 1802 in a surrounding shape on the outside, and the insert block 1802 is plugged into the notch of the L-shaped slot 1102; By adopting the above technical solution, the sealing cover 11 is connected to the filter 9 by a snap-fitting method, so that the sealing cover 11 is easier to disassemble and assemble, and it is convenient to take out the filter element 12 regularly, clean the small particles of earthworm residues intercepted by the outside of the filter screen 1201, and ensure the fluidity of the filter element 12 itself. The sealing ring 1101 has a sealing effect on the connection part, and the spring 13 applies a thrust to the filter element 12 to fix the filter element 12 and ensure the stability of the connection between the inside of the filter element 12 and the drainage chamber 902. The guide block 904 slides with the movable hole 1801 to guide the movement of the lock sleeve 18, and the spring 19 has an elastic reset effect on the lock sleeve 18; when the clamping block 903 moves to L 1802 is separated from the L-shaped slot 1102, and the sealing cover 11 is rotated to separate the sealing cover 11 from the filter element 901.

[0025] The working principle of this embodiment is as follows: first, the crushed earthworm material is poured into the conveying cylinder 1 through the feeding funnel 103, and the motor 1 2 drives the spiral conveying shaft 3 to rotate, and gradually conveys the earthworm material to the discharge port position, and the earthworm material is squeezed by the spiral conveying shaft 3, so that the earthworm protein liquid contained therein flows into the outer shell 7 through the filter screen 102, and the earthworm material after dehydration and solidification pushes the baffle 5 open and is discharged from the discharge port of the conveying cylinder 1; the motor 2 15 drives the turntable 16 to rotate, and the turntable 16 drives the piston 14 to reciprocate in the discharge chamber 902 through the transmission rod 17; when the piston 14 moves outward, the earthworm protein liquid in the liquid inlet chamber 901 is drawn into the discharge chamber 902 through the filter element 12, and the earthworm protein liquid in the outer shell 7 is drawn into the liquid inlet chamber 901 through the one-way valve 2 10, and the earthworm protein liquid entering the discharge chamber 902 is filtered through the filter screen 2 1201 to remove the earthworm protein liquid therein. small particles of earthworm residues contained therein; when the piston 14 moves inward, the earthworm protein liquid in the discharge chamber 902 is discharged into the pre-placed collection bucket below through the one-way valve two 10; the sealing cover 11 is connected to the filter 9 by a snap-fit ​​method, and when the block 903 moves to the innermost end of the L-shaped slot 1102, the notch of the L-shaped slot 1102 coincides with the position of the plug 1802, and the locking sleeve 18 is moved and reset under the thrust of the spring three 19, so that the plug 1802 is inserted into the L-shaped slot 1102, and the sealing cover 11 is fixed by the locking sleeve 18 to prevent the sealing cover 11 from rotating; when it is necessary to take out the filter element 12 for cleaning, the locking sleeve 18 is moved in the opposite direction, the spring three 19 is gradually contracted by the force, and the plug 1802 is separated from the L-shaped slot 1102, and the sealing cover 11 can be rotated to separate the sealing cover 11 from the filter 9, and the filter element 12 is taken out from the inside for cleaning.

[0026] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0027] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0028] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An earthworm protein concentration and purification device, comprising: A conveying cylinder (1); characterized in that a feeding funnel (103) is arranged at a feeding port on the top of the conveying cylinder (1); a motor (2) is installed on the outside of the conveying cylinder (1); a screw conveying shaft (3) is connected to the inside of the conveying cylinder (1); a driving shaft of the motor (2) is connected to the screw conveying shaft (3); a force-bearing member (4) is installed on the outside of the conveying cylinder (1); a baffle (5) is connected to the inside of the force-bearing member (4); a shell (7) is installed on the outside of the conveying cylinder (1); a one-way valve (8) is connected to the bottom of the shell (7); a filter (9) is connected to the bottom of the one-way valve (8); a one-way valve (10) is connected to the bottom of the filter (9); a one-way valve (10) is connected to the bottom of the filter (9); ); A filter element (12) and a piston (14) are installed inside the filter (9); a second motor (15) is installed outside the filter (9); a turntable (16) is installed on the drive shaft of the second motor (15); a transmission rod (17) is connected to the outside of the turntable (16); the transmission rod (17) is connected to the piston (14); a drainage hole (101) is arranged outside the conveying cylinder (1); a filter screen (102) is arranged inside the conveying cylinder (1); the filter screen (102) is located inside the drainage hole (101); the spiral conveying shaft (3) rotates inside the conveying cylinder (1); and the outer shell (7) is sleeved outside the drainage hole (101).

2. The earthworm protein concentration and purification device according to claim 1, characterized in that: A guide rod (401) is arranged inside the force-bearing member (4), a through hole (501) is arranged inside the baffle plate (5), the guide rod (401) passes through the through hole (501), the baffle plate (5) contacts the discharge port of the conveying cylinder (1), and two inner and outer springs (6) are sleeved on the outside of the guide rod (401), one end of the spring (6) contacts the force-bearing member (4), and the other end of the spring (6) contacts the baffle plate (5).

3. The earthworm protein concentration and purification device according to claim 1, characterized in that: The filter (9) is provided with a liquid inlet chamber (901) and a liquid discharge chamber (902) inside. The liquid inlet chamber (901) is communicated with the inside of the housing (7) via a second one-way valve (10). The liquid discharge chamber (902) is communicated with the second one-way valve (10). The filter element (12) is located inside the liquid inlet chamber (901). A second filter screen (1201) is provided outside the filter element (12). The mesh number of the second filter screen (1201) is greater than the mesh number of the first filter screen (102). The inside of the filter element (12) is communicated with the liquid discharge chamber (902).

4. The earthworm protein concentration and purification device according to claim 3, characterized in that: The piston (14) is slidably connected to the liquid discharge chamber (902); a straight rod (1401) is provided outside the piston (14); the straight rod (1401) slidably penetrates the interior of the filter (9); one end of the transmission rod (17) is rotatably connected to the rotating disk (16); and the other end of the transmission rod (17) is rotatably connected to the straight rod (1401).

5. The earthworm protein concentration and purification device according to claim 3, characterized in that: The filter (9) is buckled with a sealing cover (11) on the outside, the sealing cover (11) is in communication with the liquid inlet chamber (901), a sealing ring (1101) is installed inside the sealing cover (11), the sealing ring (1101) is in contact with the filter (9), and a second spring (13) is installed inside the sealing cover (11), the second spring (13) is in contact with the outside of the filter element (12).

6. The earthworm protein concentration and purification device according to claim 5, characterized in that: The sealing cover (11) is provided with a clamping block (903) in a circumferential shape on the outside, the sealing cover (11) is provided with an L-shaped clamping groove (1102) in a circumferential shape on the outside, the clamping block (903) is connected to the L-shaped clamping groove (1102), the sealing cover (11) is provided with a guide block (904) in a circumferential shape on the outside, the filter (9) is slidably connected with a locking sleeve (18) on the outside, a movable hole (1801) is provided in a circumferential shape on the inside of the locking sleeve (18), and the guide block (904) is slidably connected to the movable hole (1801).

7. The earthworm protein concentration and purification device according to claim 6, characterized in that: The filter (9) is provided with a spring three (19) on the outside, one end of the spring three (19) is in contact with the filter (9), and the other end of the spring three (19) is in contact with the lock sleeve (18). The lock sleeve (18) is provided with an insert block (1802) in a surrounding shape on the outside, and the insert block (1802) is inserted into the notch of the L-shaped slot (1102).

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