An extraction device for collagen peptides

Abstract

The present application relates to enzymatic extraction technical field, disclose a kind of collagen peptide extraction device, including enzymatic hydrolysis tank, the enzymatic hydrolysis tank includes upper enzymatic hydrolysis cover, lower enzymatic hydrolysis cabin, the upper enzymatic hydrolysis cover with the lower enzymatic hydrolysis cabin detachably connected;Enzymatic hydrolysis tank is equipped with stirring assembly, the stirring assembly includes several magnetic stirring rod, lifting driving element, rotary driving element, the magnetic stirring rod is used to adsorb or release solidification enzyme, the lifting driving element is used to adjust the depth position of each magnetic stirring rod in the enzymatic hydrolysis tank, the rotary driving element is used to control the rotation of the magnetic stirring rod, wherein, at least one magnetic stirring rod in any depth position in the liquid to be enzymolysis in the enzymatic hydrolysis tank, its advantage lies in, can guide magnetic solidification enzyme evenly distributed in the liquid to be enzymolysis in enzymatic hydrolysis tank, and it is easy to solidification enzyme enzymolysis and collection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of enzymatic extraction, and particularly relates to a collagen peptide extraction device. BACKGROUND

[0002] Collagen is a structural protein with a high content in animals. After collagen is decomposed by enzymatic hydrolysis, acid-base hydrolysis, thermal decomposition, fermentation and other technologies, collagen peptides composed of 2-20 amino acid residues can be obtained. Therefore, the extraction and preparation of collagen peptides mainly use enzymatic hydrolysis technology, supplemented by acid treatment, alkali treatment, heat treatment, ultrasonic treatment and other means.

[0003] In the application of the existing enzymatic extraction technology, in order to improve the utilization rate of enzymes, magnetic microspheres are used to solidify the enzymes. After the enzymatic hydrolysis is completed, the enzymes can be separated by using an external magnetic field, and then reused.

[0004] A special enzymatic hydrolysis tank for magnetic immobilized enzymes is disclosed in Chinese patent application No. 2012203418415, which comprises a tank body provided with a heat preservation layer on the outer surface and a corresponding power supply. The top of the tank body is provided with a discharge port, a sampling hole and a manhole. The bottom center is provided with a discharge port. The inside is provided with a stirring mechanism. The inner bottom of the tank body is provided with an electromagnetic device. The electromagnetic device comprises an inner coil filled with resin. The upper surface of the electromagnetic device is an electromagnetic chuck. The shape is a ring structure around the discharge port. The bottom shape is consistent with the tank body bottom and is tightly attached to the tank body bottom. The strength of the magnetism can be controlled by the current. The enzyme hydrolysis tank can realize instant recovery and instant release of the magnetic immobilized enzyme. The recovery after reaction is complete, easy to clean, waste enzyme is concentrated and discharged, energy saving and environmental protection, which is beneficial to the scientific and reasonable use of the magnetic immobilized enzyme, and is convenient for industrial popularization and application. The magnetic immobilized enzyme can be completely recovered. However, the electromagnetic device in the enzyme hydrolysis tank can only realize the simple adsorption of the magnetic solidified enzyme, and cannot control the uniform distribution of the solidified enzyme. In the initial contact, the solidified enzyme is concentrated in a specific area in the enzyme hydrolysis tank, and needs to rely completely on the stirring of the stirring mechanism to realize the dispersion of the enzyme. However, in the rotation process of the stirring rod, the enzyme can only move along the flow direction of the liquid, and cannot be quickly dispersed in the tank body, which relatively reduces the efficiency of collagen peptide enzymatic extraction.

[0005] In view of the above, there is an urgent need for a collagen peptide extraction device that can guide the uniform distribution of magnetic solidified enzymes in the liquid to be enzymatically hydrolyzed in the enzyme hydrolysis tank, and facilitate the enzymatic hydrolysis and collection of collagen peptides. SUMMARY

[0006] In view of the uneven distribution of enzymes in the prior art, a collagen peptide extraction device is provided, which can guide the uniform distribution of magnetic solidified enzymes in the liquid to be enzymatically hydrolyzed in the enzyme hydrolysis tank, and facilitate the enzymatic hydrolysis and collection of collagen peptides.

[0007] To solve the above problems, the technical scheme of the present application is:

[0008] A collagen peptide extraction device, comprising an enzymolysis tank, the enzymolysis tank comprises an upper enzymolysis cover and a lower enzymolysis cabin, the upper enzymolysis cover is detachably connected with the lower enzymolysis cabin; a stirring assembly is arranged in the enzymolysis tank, the stirring assembly comprises a plurality of magnetic stirring rods, a lifting driving member and a rotating driving member, the magnetic stirring rod is used for adsorbing or releasing solidified enzyme, the lifting driving member is used for adjusting the depth position of each magnetic stirring rod in the enzymolysis tank, and the rotating driving member is used for controlling the rotation of the magnetic stirring rod, wherein there is at least one magnetic stirring rod at any depth position in the liquid to be enzymolyzed in the enzymolysis tank.

[0009] As a preferred technical scheme, the lifting driving member is a telescopic rod, one end of the telescopic rod is connected with the magnetic stirring rod.

[0010] As a preferred technical scheme, the rotating driving member is a driving motor, a plurality of telescopic rods connected with each magnetic stirring rod are connected with the driving shaft of the driving motor.

[0011] As a preferred technical scheme, the lifting driving member comprises a limiting sleeve, a lifting sleeve and a threaded rod; a plurality of limiting grooves are arranged on the limiting sleeve, wherein the bottom of each limiting groove is located on different planes perpendicular to the axial direction of the limiting sleeve; the rotation of the threaded rod drives the lifting sleeve to ascend and descend along the threaded rod, the rotating driving member drives the rotation of the threaded rod, and the bottom of the limiting sleeve is connected with the lower enzymolysis cabin through a bearing.

[0012] As a preferred technical scheme, the end of the magnetic stirring rod is provided with a buckle, the buckle is matched with the limiting groove; the lifting sleeve is located below each buckle and can push the buckle to move upward along the limiting groove.

[0013] As a preferred technical scheme, the limiting sleeve comprises a lower cabin pipe and an upper cover pipe, the lower cabin pipe is detachably connected with the upper cover pipe.

[0014] As a preferred technical scheme, the threaded rod comprises a lower warehouse screw rod and an upper cover screw rod, the lower warehouse screw rod is detachably connected with the upper cover screw rod.

[0015] As a preferred technical scheme, a connecting ring is arranged in the upper cover pipe, the connecting ring is connected with the upper enzymolysis cover through a bearing, the connecting ring is movably connected with the pipe wall of the upper cover pipe through a contraction rod, a first inclined edge clamping block is arranged on the inner wall of the upper cover pipe, and the upper cover pipe can be contracted towards the axis center when the buckle rises along the first inclined edge clamping block.

[0016] As a preferred technical scheme, the inner wall below the bottom of the limiting groove of the lower cabin pipe is provided with a second inclined edge clamping block, and the lifting sleeve is lowered along the second inclined edge clamping block to make the threaded rod combined with the limiting sleeve.

[0017] As a preferred technical scheme, after starting the enzymolysis and when the magnetic stirring rod rotates, the adsorption capacity of the magnetic stirring rod to the solidified enzyme gradually decreases.

[0018] The beneficial effects of the present application are:

[0019] The enzyme hydrolysis tank of the collagen peptide extraction device is composed of a detachable upper enzyme hydrolysis cover and a lower enzyme hydrolysis cabin. The stirring assembly includes a plurality of magnetic stirring rods. Each magnetic stirring rod can be distributed at different depth positions in the lower enzyme hydrolysis cabin under the action of the lifting drive. The rotation of the rotating drive and the ordered reduction of the magnetic force of the magnetic stirring rod can release the solidified enzyme attached to the magnetic stirring rod at every place of the enzyme hydrolysis liquid, thereby realizing the uniform distribution of the solidified enzyme in the enzyme hydrolysis liquid. When the magnetic stirring rods are arranged in a ring shape, they can be gathered in the upper enzyme hydrolysis cover, facilitating transfer with the upper enzyme hydrolysis cover. After transfer, the solidified enzyme on the magnetic stirring rods can be treated, such as allowing the magnetic stirring rods to fully adsorb the solidified enzyme or cleaning the recovered solidified enzyme on the magnetic stirring rods. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a schematic diagram of the limiting sleeve of the present application; Figure 1 FIG. 2 is a schematic diagram of the collagen peptide of the present application;

[0021] FIG. 3 is a schematic diagram of the upper enzyme hydrolysis cover and its stirring assembly of the present application; Figure 2 FIG. 4 is a schematic diagram of the lower enzyme hydrolysis cabin and the stirring state of the present application;

[0022] Figure 3 FIG. 5 is a schematic diagram of the limiting sleeve of the present application;

[0023] Figure 4 FIG. 6 is a schematic diagram of the threaded rod of the present application;

[0024] Figure 5 FIG. 7 is a schematic diagram of the threaded rod of the present application;

[0025] Figure 6 FIG. 8 is a partial enlarged schematic diagram of A in FIG. 6; Figure 5

[0026] Figure 7 FIG. 9 is a partial sectional schematic diagram of the bottom of the limiting sleeve of the present application;

[0027] Figure 8 FIG. 10 is a partial schematic diagram of the upper cover pipe and the magnetic stirring rod of the present application;

[0028] Figure 9 FIG. 11 is a schematic diagram of the detachable threaded rod of the present application; ​​

[0029] Figure 10 is another schematic view of the magnetic stirring rod in the stirring state and the limiting groove.

[0030] The reference signs and components involved in the drawings are shown as follows:

[0031] 1, enzyme tank; 2, upper enzyme cover; 3, lower enzyme cabin;

[0032] 4, stirring assembly; 41, magnetic stirring rod; 411, buckle; 42, lifting driving part; 43, rotating driving part;

[0033] 5, limiting sleeve; 51, upper cover pipe; 52, lower cabin pipe; 53, limiting groove; 511, first bevel clamping block; 512, connecting ring; 513, contraction rod; 521, second bevel clamping block;

[0034] 6, lifting sleeve;

[0035] 7, threaded rod; 71, upper cover screw; 72, lower cabin screw. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] In order to better understand the collagen peptide extraction device provided by the embodiment, the existing collagen peptide extraction device will be briefly introduced first. The existing collagen peptide extraction device, such as Chinese patent application No. 202220471585.5, discloses a rapid recovery immobilized enzyme enzyme tank, which comprises a tank body with an inner cavity. The upper surface of the tank body is fixedly connected with a driving motor. The output shaft of the driving motor is movably penetrated through the upper wall of the tank body and extends to the inside of the inner cavity. The lower end of the driving motor output shaft is fixedly connected with an adjusting mechanism. By designing the stirring paddle in the tank body as an electromagnet type and simultaneously changing the original shape of the stirring paddle to a spiral type, the contact area with the fermentation broth is increased. At the same time, the magnetic nano material is used as the immobilized enzyme carrier to ensure that the immobilized enzyme can be adsorbed on the stirring paddle with current. The immobilized enzyme in the fermentation broth is fully adsorbed on the stirring paddle by the magnetism of the stirring paddle. The next time the immobilized enzyme is used, the current is disconnected to make the immobilized enzyme separate from the stirring paddle, and the stirring action is used to make it uniformly distributed in the fermentation broth. In this way, the effect of rapid separation while ensuring purity can be achieved. However, as stated in its own record, it can only adjust the distribution of enzymes in the fermentation broth by stirring.

[0038] Embodiment 1

[0039] Please refer to the attached drawings Figure 1 The extraction device of the collagen peptide according to the present application comprises an enzyme hydrolysis tank 1, which is a cavity structure with a conical shape from top to bottom and a cylindrical shape in the middle. In order to make the solidified enzyme enter the fermentation liquid uniformly and controllably, the enzyme hydrolysis tank 1 comprises an upper enzyme hydrolysis cover 2 and a lower enzyme hydrolysis cabin 3, which are detachably connected. The upper enzyme hydrolysis cover 2 can be separated from the lower enzyme hydrolysis cabin 3 by a hoisting mechanism. Figure 2 The enzyme hydrolysis tank 1 is provided with a stirring assembly 4, which comprises a plurality of magnetic stirring rods 41, a lifting driving member 42 and a rotating driving member 43. The magnetic stirring rod 41 is provided with an electromagnetic assembly. The electromagnetic assembly is a prior art, which can change the magnetic attraction ability of the magnetic stirring rod 41 by changing the size of the current. When the magnetic attraction ability decreases, the solidified enzyme adsorbed will be released. The plurality of magnetic stirring rods 41 are arranged around the center of the enzyme hydrolysis tank 1. The lifting driving member 42 is arranged in the cavity of the upper enzyme hydrolysis cover 2 and is connected to each magnetic stirring rod 41 correspondingly, so as to control the position of each magnetic stirring rod 41 in the enzyme hydrolysis tank 1 respectively. Figure 3 When each magnetic stirring rod 41 reaches the corresponding position, the rotating driving member 43 can drive the rotation of each magnetic stirring rod 41 in the liquid to be hydrolyzed in the lower enzyme hydrolysis cabin 3.

[0040] Specifically, in the present embodiment, the lifting driving member 42 is a telescopic rod structure, which is realized by a hydraulic telescopic system or a threaded rod 7 telescopic system, etc. Taking the hydraulic telescopic rod as an example, the hydraulic cylinder is arranged around the axis of the enzyme hydrolysis tank 1 in the upper enzyme hydrolysis cover 2. The bottom of the hydraulic cylinder is connected to a disc, and the disc is connected to the rotating shaft of the rotating driving member 43. The rotating driving member 43 is a driving motor arranged above the upper enzyme hydrolysis cover 2. The end of the hydraulic telescopic rod is connected to the magnetic stirring rod 41. Preferably, the length of the magnetic stirring rod 41 is slightly smaller than the radius of the enzyme hydrolysis tank 1 at the corresponding position.

[0041] The use of the present application, in the initial state, each magnetic stirring rod 41 is gathered in the cavity of the upper enzymolysis cover 2, and in this embodiment, it is located in the same plane. The upper enzymolysis cover 2 is lifted and the magnetic stirring rod 41 is placed in the storage tank of the quantitative solidified enzyme, so that the solidified enzyme for enzymolysis is fully adsorbed on the energized magnetic stirring device. The liquid to be enzymolyzed is placed into the lower enzymolysis tank 3, and then the upper enzymolysis cover 2 is combined with the lower enzymolysis tank 3. At this time, the magnetic stirring rod 41 is located above the enzymolysis liquid. When the temperature in the enzymolysis tank is stabilized at a suitable temperature conducive to enzymolysis reaction, the lifting drive 42 is started to move each magnetic stirring rod 41 into the enzymolysis liquid. At this time, the magnetic stirring rod 41 still maintains the state of adsorbing the solidified enzyme. Until each magnetic stirring rod 41 moves to the corresponding position, so that each depth position of the enzymolysis liquid has a magnetic stirring rod 41. In some embodiments, two magnetic stirring rods 41 can be provided at the corresponding depth position. When each magnetic stirring rod 41 is located at different depths, the rotation drive 43 is started to drive each magnetic stirring rod 41 to rotate around the axis of the enzymolysis tank 1. At the same time, the current of the electromagnetic assembly in each magnetic stirring rod 41 is gradually reduced, and the solidified enzyme on it is slowly released, so that the solidified enzyme can diffuse on the motion trail of each magnetic stirring rod 41. After the enzymolysis is completed, the adsorption capacity of the magnetic stirring rod 41 is restored. During the stirring process, the solidified enzyme mixed in the enzymolysis liquid is adsorbed. After the adsorption is completed, each magnetic stirring rod 41 is raised by the lifting drive 42 to restore to the state of hanging above the enzymolysis liquid. A certain period of time can be maintained in the state of maintaining the magnetism. The liquid on the magnetic stirring rod 41 is allowed to drip. The enzymolysis liquid after enzymolysis can be discharged from the liquid outlet at the bottom of the lower enzymolysis tank 3. It should be noted that the solidified enzyme re-adsorbed on the magnetic stirring rod 41 after enzymolysis still has good activity and can continue to enzymolyze the next tank of enzymolysis liquid until it loses the corresponding activity and is lifted to the recovery container for release and cleaning.

[0042] The enzymolysis tank 1 of the collagen peptide extraction device comprises a detachable upper enzymolysis cover 2 and a lower enzymolysis tank 3. The stirring assembly 4 comprises a plurality of magnetic stirring rods 41. Each magnetic stirring rod 41 can be distributed in different depth positions of the lower enzymolysis tank 3 under the action of the lifting drive 42. In cooperation with the rotation of the rotation drive 43 and the ordered reduction of the magnetic force of the magnetic stirring rod 41, the solidified enzyme adhered to the magnetic stirring rod 41 can be released at each position of the enzymolysis liquid, thereby realizing the uniform distribution of the solidified enzyme in the enzymolysis liquid. When the magnetic stirring rod 41 is arranged in a ring shape, it can be gathered in the upper enzymolysis cover 2, which is convenient for transferring with the upper enzymolysis cover 2. After the transfer, the solidified enzyme on the magnetic stirring rod 41 can be treated, such as fully adsorbing the solidified enzyme or cleaning the recovered solidified enzyme on the magnetic stirring rod 41.

[0043] Example 2

[0044] In order to simplify the control system of the stirring assembly 4 and its driving structure, the embodiment provides another lifting driving member 42 and a magnetic stirring rod 41 matched with the lifting driving member 42, so as to avoid the service life of the corresponding driving element being greatly reduced in a high-temperature and high-humidity working environment.

[0045] Please refer to the attached Figure 4 , Figure 5 , Figure 6 ; specifically, the lifting driving member 42 comprises a limiting sleeve 5, a lifting sleeve 6, and a threaded rod 7; the limiting sleeve 5 is a tubular structure comprising an upper cover pipe 51 and a lower cabin pipe 52, the lower cabin pipe 52 is connected with the lower enzyme hydrolysis cabin 3, and the lower cabin pipe 52 can rotate around its own axis, the upper cover pipe 51 is detachably connected with the lower cabin pipe 52 in the form of a pin, a plurality of limiting grooves 53 are arranged on the limiting sleeve 5, the limiting grooves 53 are guide grooves for the movement of the magnetic stirring rod 41 arranged along the axial direction of the limiting sleeve 5, and the bottoms of the limiting grooves 53 are located on different planes perpendicular to the axial direction of the lower cabin pipe 52 of the limiting sleeve 5, that is, when each magnetic stirring rod 41 is in contact with the bottom of each limiting groove 53, at least one magnetic stirring rod 41 is arranged in each layer of the lower enzyme hydrolysis cabin 3; the threaded rod 7 is coaxially arranged in the limiting sleeve 5 and located in the limiting sleeve 5, the inner diameter of the limiting sleeve 5 is greater than the diameter of the threaded rod 7, and the threaded rod 7 is matched with the lifting sleeve 6, the outer wall of the lifting sleeve 6 is adaptively connected with the clamping groove on the inner wall of the limiting sleeve 5 through a protrusion, and there is a gap between the outer wall of the lifting sleeve 6 and the inner wall of the limiting sleeve 5, the rotating driving member 43 drives the threaded rod 7 to rotate, the rotation of the threaded rod 7 can drive the lifting sleeve 6 to ascend and descend along the threaded rod 7, in order to clamp the threaded rod 7, the lifting sleeve 6, and the limiting sleeve 5 together, please refer to the attached Figure 7 ; a second bevel clamping block 521 is arranged on the inner wall of the bottom of the lower cabin pipe 52, please refer to the attached Figure 8 ; a first bevel clamping block 511 is arranged on the inner wall of the top of the upper cover pipe 51, and a connecting ring 512 coaxially connected with the upper enzyme hydrolysis cover 2 is arranged in the upper cover pipe 51, the shrinkable rod 513 is connected with the outer wall of the connecting ring 512 through a shaft at one end and connected with the inner wall of the upper cover pipe 51 through a shaft at the other end, and a torsional spring is arranged on the shaft.

[0046] Please refer to the attached Figure 8 again, in the embodiment, the end of the magnetic stirring rod 41 is provided with a buckle 411, the lifting sleeve 6 is located below the buckle 411, an electromagnetic adsorption assembly is arranged in the magnetic stirring rod 41, and the power supply of the electromagnetic adsorption assembly can be a battery or a power line.

[0047] Please refer to the attached Figure 9The threaded rod 7 also comprises an upper cover screw rod 71 and a lower cabin screw rod 72, the upper cover screw rod 71 is connected with the rotating driving part 43, the lower cabin screw rod 72 is connected with the bottom of the lower enzyme hydrolysis cabin 3 through a bearing, and the upper cover screw rod 71 and the lower cabin screw rod 72 are also connected in a detachable mode through a pin.

[0048] Please refer to the accompanying drawings Figure 10 The use mode of the embodiment is as follows: in the initial state, the magnetic stirring rod 41 is annularly arranged in the upper enzyme hydrolysis cover 2, at this time, under the limitation of the lifting sleeve 6, the buckle 411 of the magnetic stirring rod 41 is in contact with the first bevel block, so that the upper cover pipe 51 is in a tightened state, thereby clamping the magnetic stirring rod 41, when the upper enzyme hydrolysis cover 2 carrying the fixed enzyme is combined with the lower enzyme hydrolysis cabin 3, the rotating driving part 43 is started to move the lifting sleeve 6 downward and away from the first bevel block, under the action of the torsional spring, the upper cover pipe 51 loosens the clamped magnetic stirring rod 41, each magnetic stirring rod 41 starts to move downward and drops to the bottom of the corresponding limiting groove 53, so that each magnetic stirring rod 41 is located in each layer of the lower enzyme hydrolysis cabin 3, under the continuous rotation of the rotating driving part 43, the lifting sleeve 6 moves to the second bevel block 521 and is pressed thereon, so that the limiting sleeve 5, the lifting sleeve 6 and the threaded rod 7 are integrated, and then the rotating driving part 43 drives the magnetic stirring rod 41 to rotate in the enzyme hydrolysis tank 1 to uniformly release the fixed enzyme into the enzyme hydrolysis liquid; after the enzyme hydrolysis work is completed and the fixed enzyme is recovered, the rotating driving part 43 is reversely rotated, the lifting sleeve 6 starts to ascend along the threaded rod 7, and each magnetic stirring rod 41 is sequentially lifted to the upper enzyme hydrolysis cover 2, when the buckle 411 of the magnetic stirring rod 41 re-presses the first bevel block 511, the contraction rod 513 is contracted, so that the upper cover pipe 51 re-clamps the magnetic stirring rod 41.

[0049] The collagen peptide extraction device disclosed in the embodiment realizes uniform release and recovery of the fixed enzyme only by switching the forward and reverse rotation of the rotating driving part 43 through the cooperation between the threaded rod 7, the lifting sleeve 6 and the limiting sleeve 5.

[0050] The above is only the preferred embodiment of the present application, it should be noted that, for those skilled in the art, without departing from the principle of the present application, a number of improvements and supplements can also be made, which should be considered as the protection scope of the present application.

Claims

1. A collagen peptide extraction apparatus comprising an enzymolysis tank, characterized in that, The enzyme hydrolysis tank comprises an upper enzyme hydrolysis cover and a lower enzyme hydrolysis cabin, and the upper enzyme hydrolysis cover is detachably connected with the lower enzyme hydrolysis cabin; a stirring assembly is arranged in the enzyme hydrolysis tank, the stirring assembly comprises a plurality of magnetic stirring rods, a lifting driving element and a rotating driving element, the magnetic stirring rod is used for adsorbing or releasing solidified enzyme, the lifting driving element is used for adjusting the depth position of each magnetic stirring rod in the enzyme hydrolysis tank, the lifting driving element comprises a limiting sleeve, a lifting sleeve and a threaded rod; a plurality of limiting grooves are arranged on the limiting sleeve, wherein the bottom of each limiting groove is located on different planes perpendicular to the axial direction of the limiting sleeve; the threaded rod drives the lifting sleeve to ascend and descend along the threaded rod, the rotating driving element drives the threaded rod to rotate, the bottom of the limiting sleeve is connected with the lower enzyme hydrolysis cabin through a bearing, and the rotating driving element is used for controlling the magnetic stirring rod to rotate, wherein there is at least one magnetic stirring rod at any depth position in the liquid to be hydrolyzed in the enzyme hydrolysis tank.

2. The collagen peptide extraction device according to claim 1, characterized by, The end of the magnetic stirring rod is provided with a buckle, and the buckle is matched with the limiting groove; the lifting sleeve is located below each buckle and can push the buckle to move upward along the limiting groove.

3. The collagen peptide extraction device according to claim 2, characterized by, The limiting sleeve comprises a lower cabin pipe and an upper cover pipe, and the lower cabin pipe is detachably connected with the upper cover pipe.

4. The collagen peptide extraction device according to claim 1, characterized by, The threaded rod comprises a lower warehouse screw rod and an upper cover screw rod, and the lower warehouse screw rod is detachably connected with the upper cover screw rod. 5.The collagen peptide extraction device according to claim 3, characterized in that, A connecting ring is arranged in the upper cover pipe, the connecting ring is connected with the upper enzyme hydrolysis cover through a bearing, the connecting ring is movably connected with the pipe wall of the upper cover pipe through a contraction rod, a first inclined edge clamping block is arranged on the inner wall of the upper cover pipe, and the buckle ascends along the first inclined edge clamping block to enable the upper cover pipe to contract towards the axis. 6.The collagen peptide extraction device according to claim 3, characterized in that, A second inclined edge clamping block is arranged on the inner wall below the bottom of the limiting groove of the lower cabin pipe, and the lifting sleeve descends along the second inclined edge clamping block to enable the threaded rod to be combined with the limiting sleeve. 7.The collagen peptide extraction device according to claim 1, characterized in that, After the enzyme hydrolysis starts and the magnetic stirring rod rotates, the adsorption capacity of the magnetic stirring rod for the solidified enzyme gradually decreases.

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