A kind of preparation equipment and preparation process of Maotai-flavor tea oil
By introducing structures such as auxiliary spiral blades and communication ports into the spiral press, the problem of material reflow is solved, the pressing efficiency of tea oil and the opening of the oil path are improved, and the efficient preparation of soy sauce-flavored tea oil is achieved.
Patent Information
- Application Number
- CN202411554540.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2044-11-04
AI Technical Summary
The existing spiral presses have large pitches of the spiral blades on the spindle, which leads to the rapid advancement of the material, resulting in material reflow, affecting the pressing effect of tea oil.
Design a sauce-flavored tea oil preparation equipment, adopting a structure that combines auxiliary spiral blades with main spiral blades. The pitch of auxiliary spiral blades is smaller than that of main spiral blades, which increases the density of pre-pressed spiral blades to avoid material reflux, and Optimize material conveying and pressing effects through communication ports and rotating rings.
It effectively avoids material reflux, improves the pressing efficiency of tea oil and the opening of oil circuits, promotes the smooth discharge of the pressed liquid, and improves the preparation effect of soy sauce-flavored tea oil.
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Figure CN119036915B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pressing, in particular to a preparation device and a preparation process of sauce-flavored tea oil. Background Art
[0002] Tea oil is the oil squeezed from camellia seeds. Tea oil is squeezed by screw pressing. The camellia seeds are placed in a screw press to squeeze out the tea oil. The screw press includes a main shaft and a pressing cage. The main shaft is provided with spiral blades. The diameter of the main shaft gradually increases, and an extrusion cavity is formed between the main shaft and the circular row inside the pressing cage. As the main shaft rotates, the material is squeezed by the progressive pressure, and the excess liquid is squeezed out from the holes in the circular row.
[0003] However, the existing screw press has a large pitch of the spiral blades on the main shaft, which makes the material advance too fast, which will cause material backflow and affect the pressing effect of tea oil. Summary of the invention
[0004] Based on this, it is necessary to provide a kind of sauce-flavored tea oil preparation equipment and preparation process to address the current technical problems of material reflux.
[0005] The above purpose is achieved through the following technical solutions:
[0006] A kind of sauce-flavored tea oil preparation equipment comprises a frame assembly, a shell is provided on the frame assembly, a pressing cage is provided inside the shell, a circular row is detachably installed inside the pressing cage, the axis of the circular row extends in the front-to-back direction, a main shaft is coaxially rotated inside the circular row, an extrusion chamber is formed between the main shaft and the circular row, and the extrusion chamber is used to extrude materials; the main shaft comprises a pre-pressing section, a main pressing section and a cake-forming section which are sequentially distributed front to back, the diameter of the cake-forming section is larger than the diameter of the pre-pressing section, and the main pressing section is conical; main spiral blades are provided on the pre-pressing section, the main pressing section and the cake-forming section, and the main spiral blades convey the materials from front to back; an auxiliary spiral blade is also provided on the pre-pressing section, the auxiliary spiral blade has the same rotation direction as the main spiral blade, the auxiliary spiral blade and the main spiral blade are interlaced in the front-to-back direction, each turn of the auxiliary spiral blade is located between two adjacent turns of the main spiral blade, and the maximum diameter of the auxiliary spiral blade is smaller than the maximum diameter of the main spiral blade.
[0007] Furthermore, the pitch of the auxiliary helical blade is the same as the pitch of the main helical blade.
[0008] Furthermore, the pitch of the auxiliary helical blade is smaller than the pitch of the main helical blade.
[0009] Furthermore, each turn of the auxiliary spiral blade is provided with a communication port, and the communication port is arranged in close contact with the outer peripheral surface of the pre-compression section; the communication port is used to connect the chambers on the front and rear sides of the auxiliary spiral blade.
[0010] Furthermore, an annular groove is provided on the pre-pressing section at a position corresponding to the communicating port, the annular groove is coaxial with the main shaft, a rotating ring is rotatably provided in the annular groove, and the diameter of the rotating ring is the same as the diameter of the pre-pressing section.
[0011] Furthermore, a feed port is provided in front of the pressing cage, and the feed port corresponds to the front end of the pre-pressing section; a bar row is also provided inside the pressing cage, and the bar row is located in front of the circular row, and the bar row is used to guide the material to be transported backward.
[0012] Furthermore, a feed hopper is provided in front of the shell, and the feed hopper corresponds to the feed port of the pressing cage; an oil outlet is also provided on the side of the shell, an oil outlet groove is provided on the circular row, and the oil outlet corresponds to the oil outlet groove, and the oil outlet is provided with an oil collecting plate, and the oil collecting plate is used to collect the squeezed liquid.
[0013] Furthermore, the main shaft also includes a head end and a tail end, the head end is located in front of the pre-pressing section, and the tail end is located behind the cake-forming section. The tail end is provided with a slag discharge device, and the slag discharge device is used to discharge the squeezed solid out of the shell.
[0014] Furthermore, a driving motor and a transmission member are provided on one side of the frame assembly, the driving motor drives the transmission member to rotate through a transmission belt, and the transmission member is drivingly connected to the head end of the main shaft.
[0015] A process for preparing Maotai-flavor tea oil, using the Maotai-flavor tea oil preparation device, comprises the following steps:
[0016] S1. Take fresh and ripe camellia fruit, peel and separate the husk and camellia seed, pile and ferment the obtained fresh husk, spread it out to dry naturally or air-dry, and then purify it to obtain fermented husk;
[0017] S2, putting camellia seeds into the extrusion cavity between the main shaft and the circular row, and then rotating the main shaft to transport the camellia seeds from front to back, and the camellia seeds are squeezed out into camellia oil and oil cake after passing through the pre-pressing section, the main pressing section and the cake-forming section;
[0018] S3, mixing the camellia oil with the fermented fruit shell, and putting it into the extrusion cavity between the main shaft and the circular row for secondary pressing, and finally obtaining the sauce-flavored camellia oil.
[0019] The beneficial effects of the present invention are:
[0020] The Maotai-flavor tea oil preparation equipment and preparation process provided by the present invention can increase the density of the spiral blades in the pre-pressing section by arranging auxiliary spiral blades, thereby increasing the number of times the material is pushed during the conveying process, thereby avoiding the backflow of the material; at the same time, because the maximum diameter of the auxiliary spiral blades is smaller than the maximum diameter of the main spiral blades, it can avoid that the friction between the auxiliary spiral blades and the circular row affects the rotation of the main shaft, thereby ensuring the conveying efficiency of the material.
[0021] Secondly, the pitch of the auxiliary spiral blade is smaller than that of the main spiral blade. Thus, from front to back, the position of each turn of the auxiliary spiral blade between two adjacent turns of the main spiral blade will gradually move forward, so that the volume between the auxiliary spiral blade and the main spiral blade on the front side will gradually decrease, and the volume between the auxiliary spiral blade and the main spiral blade on the rear side will gradually increase, so that the volumes of the front and rear sides of the auxiliary spiral blade are different, and then the compression ratio between the auxiliary spiral blade and the main spiral blade on the front side will gradually increase, while the compression ratio between the auxiliary spiral blade and the main spiral blade on the rear side will gradually decrease. Since the material will move from a position with a high compression ratio to a position with a low compression ratio, the material in the extrusion chamber will be stratified, and the layers will be staggered and mixed, thereby opening the oil path and promoting the smooth discharge of the squeezed liquid.
[0022] Third, a connecting port is provided to connect the chambers on the front and rear sides of the auxiliary spiral blade. In this way, for the material near the outer peripheral surface of the pre-pressing section, when the compression ratios on the front and rear sides of the auxiliary spiral blade are inconsistent, the material on the side with a higher compression ratio flows to the side with a lower compression ratio through the connecting port, thereby enabling the material on the side with a lower compression ratio to move outward along the radial direction of the main shaft, thereby promoting the material to be turned from the inside to the outside, thereby increasing the oil extraction rate and avoiding difficulties in extracting oil from the material.
[0023] Fourth, a rotating ring is provided, so that when the material and the squeezed liquid flow along the connecting port, the rotating ring will be driven to rotate. The rotation of the rotating ring can reduce the resistance of the material and the squeezed liquid during flow, thereby ensuring the conveying speed of the material and the squeezed liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of the three-dimensional structure of a Maotai-flavor tea oil preparation device provided in one embodiment of the present invention;
[0025] Figure 2 Schematic diagram of explosion of a Maotai-flavor tea oil preparation device provided in one embodiment of the present invention Figure 1 ;
[0026] Figure 3 Schematic diagram of explosion of a Maotai-flavor tea oil preparation device provided in one embodiment of the present invention Figure 2 ;
[0027] Figure 4 A schematic diagram of the structure of a main shaft and a pressing cage in a Maotai-flavor tea oil preparation device provided in one embodiment of the present invention;
[0028] Figure 5 A schematic diagram of the structure of a main shaft in a Maotai-flavor tea oil preparation device provided in one embodiment of the present invention;
[0029] Figure 6 for Figure 4 Middle AA section view;
[0030] Figure 7 for Figure 3 A magnified view of the structure at X in the middle;
[0031] Figure 8 for Figure 6 Enlarged view of the structure at Y in the middle.
[0032] in:
[0033] 100, frame assembly; 110, feed hopper; 120, shell; 130, oil outlet; 140, oil collecting plate; 210, main shaft; 220, main spiral blade; 230, auxiliary spiral blade; 240, rotating ring; 250, pressing cage; 260, feed inlet; 270, strip row; 280, round row; 290, slag discharge device; 241, roller; 211, head end; 212, tail end; 231, connecting port; 300, transmission member; 400, motor; 500, pre-pressing section; 600, main pressing section; 700, cake section; 800, transmission belt. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0035] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.
[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0037] like Figures 1 to 8 As shown, a Maotai-flavor tea oil preparation device provided by one embodiment of the present invention includes a frame assembly 100, a shell 120 is provided on the frame assembly 100, a pressing cage 250 is provided inside the shell 120, a circular row 280 is detachably installed inside the pressing cage 250, the axis of the circular row 280 extends in the front-to-back direction, a main shaft 210 is coaxially rotated inside the circular row 280, an extrusion chamber is formed between the main shaft 210 and the circular row 280, and the extrusion chamber is used to extrude materials; the main shaft 210 includes a pre-pressing section 500, a main pressing section 600 and a cake-forming section 700 distributed in sequence front and back, and the diameter of the cake-forming section 700 is The diameter of the pre-pressing section 500 is larger than that of the pre-pressing section 500, and the main pressing section 600 is conical; the pre-pressing section 500, the main pressing section 600 and the cake forming section 700 are provided with main spiral blades 220, and the main spiral blades 220 convey the material from front to back; the pre-pressing section 500 is also provided with auxiliary spiral blades 230, and the auxiliary spiral blades 230 have the same rotation direction as the main spiral blades 220, and the auxiliary spiral blades 230 and the main spiral blades 220 are interlaced in the front-to-back direction, and each turn of the auxiliary spiral blades 230 is located between two adjacent turns of the main spiral blades 220, and the maximum diameter of the auxiliary spiral blades 230 is smaller than the maximum diameter of the main spiral blades 220. The structure of the circular row 280 belongs to the prior art, and the circular row 280 is composed of a plurality of circular rings connected front and back, and an oil outlet groove is formed between two adjacent circular rings, and saw teeth are provided inside each circular ring, and the saw teeth and the main spiral blades 220 of the main shaft 210 squeeze the material. The material is a mixture of camellia seeds or camellia oil and fermented fruit shells.
[0038] By providing the auxiliary spiral blades 230, the density of the spiral blades in the pre-pressing section 500 can be increased, thereby increasing the number of times the material is pushed during the conveying process, thereby avoiding the backflow of the material; at the same time, since the maximum diameter of the auxiliary spiral blades 230 is smaller than the maximum diameter of the main spiral blades 220, the friction between the auxiliary spiral blades 230 and the circular row 280 can be avoided to affect the rotation of the main shaft 210, thereby ensuring the material conveying efficiency.
[0039] In one embodiment, the pitch of the auxiliary spiral blade 230 is the same as the pitch of the main spiral blade 220. Each turn of the auxiliary spiral blade 230 is arranged at the middle position between two adjacent turns of the main spiral blade 220, so that the material has a faster conveying speed.
[0040] In one embodiment, the pitch of the auxiliary spiral blade 230 is smaller than the pitch of the main spiral blade 220. Specifically, the pitch of the auxiliary spiral blade 230 is slightly smaller than the pitch of the main spiral blade 220, so that from front to back, the position of each turn of the auxiliary spiral blade 230 between two adjacent turns of the main spiral blade 220 will gradually move forward, so that the volume between the auxiliary spiral blade 230 and the main spiral blade 220 on the front side gradually decreases, and the volume between the auxiliary spiral blade 230 and the main spiral blade 220 on the rear side gradually increases, so that the volumes of the front and rear sides of the auxiliary spiral blade 230 are different, and then the compression ratio between the auxiliary spiral blade 230 and the main spiral blade 220 on the front side gradually increases, while the compression ratio between the auxiliary spiral blade 230 and the main spiral blade 220 on the rear side gradually decreases. Since the material moves from a position with a high compression ratio to a position with a low compression ratio, the material in the extrusion chamber is layered, and the layers are split and mixed, thereby opening the oil path and promoting the smooth discharge of the squeezed liquid.
[0041] In one embodiment, each turn of the auxiliary spiral blade 230 is provided with a connecting port 231, which is a circular hole, and is arranged in close contact with the outer peripheral surface of the pre-pressing section 500; the connecting port 231 is used to connect the chambers on the front and rear sides of the auxiliary spiral blade 230. In this way, when the compression ratios of the front and rear sides of the auxiliary spiral blade 230 are inconsistent, the material on the side with a high compression ratio flows to the side with a low compression ratio through the connecting port 231, thereby enabling the material on the side with a low compression ratio to move outward along the radial direction of the main shaft 210, thereby promoting the material to turn from the inside to the outside, improving the oil extraction rate of the squeezed oil, and avoiding the difficulty of oil extraction of the material.
[0042] In one embodiment, an annular groove is provided on the pre-pressing section 500 at a position corresponding to the communication port 231, the annular groove is coaxial with the main shaft 210, a rotating ring 240 is rotatably provided in the annular groove, and the diameter of the rotating ring 240 is the same as the diameter of the pre-pressing section 500. A roller 241 is provided on the side of the rotating ring 240 facing the annular groove, and the roller 241 can reduce the rotation resistance of the rotating ring 240. In this way, when the material and the squeezed liquid flow along the communication port 231, the rotating ring 240 will be driven to rotate, and the rotation of the rotating ring 240 can reduce the resistance of the material and the squeezed liquid when flowing, thereby ensuring the conveying speed of the material and the squeezed liquid.
[0043] In one embodiment, the pressing cage 250 corresponds to the pre-pressing section 500 and the main pressing section 600, and a feed port 260 is provided in front of the pressing cage 250, and the feed port 260 corresponds to the front end of the pre-pressing section 500; a bar row 270 is also provided inside the pressing cage 250, and the bar row 270 is located in front of the circular row 280, and the bar row 270 is used to guide the material to be transported backward.
[0044] In one embodiment, a feed hopper 110 is provided in front of the shell 120, and the feed hopper 110 corresponds to the feed port 260 of the pressing cage 250; an oil outlet 130 is also provided on the side of the shell 120, and an oil outlet groove is provided on the circular row 280, and the oil outlet 130 is arranged corresponding to the oil outlet groove, and the oil outlet 130 is provided with an oil collecting plate 140, and the oil collecting plate 140 is used to collect the squeezed liquid.
[0045] In one embodiment, the main shaft 210 further includes a head end 211 and a tail end 212, wherein the head end 211 is located in front of the pre-pressing section 500, and the tail end 212 is located behind the cake forming section 700. The tail end 212 is provided with a slag discharge device 290, and the slag discharge device 290 is used to discharge the squeezed solid out of the shell 120. The slag discharge device 290 belongs to the prior art, and the specific structure is not repeated here.
[0046] In one embodiment, a driving motor 400 and a transmission member 300 are provided on one side of the frame assembly 100 . The driving motor 400 drives the transmission member 300 to rotate via a transmission belt 800 . The transmission member 300 is in transmission connection with the head end 211 of the main shaft 210 .
[0047] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:
[0048] The material is poured into the feed hopper 110 of the shell 120. The material in the feed hopper 110 enters the bar row 270 through the feed port 260 on the pressing cage 250, and enters the extrusion chamber between the main shaft 210 and the circular row 280 under the guidance of the bar row 270. Then the drive motor 400 is controlled to drive the main shaft 210 to rotate. The rotation of the main shaft 210 will cause the main spiral blades 220 and the auxiliary spiral blades 230 thereon to rotate simultaneously, so that the material flows from front to back in the pre-pressing section 500. Subsequently, the material is squeezed out of the liquid in the main pressing section 600. After the liquid flows out of the oil outlet groove of the circular row 280, it is collected by the oil collecting plate 140 set at the oil outlet 130 of the shell 120, and then the squeezed liquid is collected by the collecting barrel; the squeezed material enters the cake section 700 to form a solid, which is the cake residue. The cake residue is discharged from the shell 120 under the action of the residue discharge device 290, thereby realizing the squeezing process of the material.
[0049] An embodiment of a process for preparing Maotai-flavor tea oil, using the above-mentioned Maotai-flavor tea oil preparation equipment, comprises the following steps:
[0050] S1. Take fresh and ripe camellia fruit, peel and separate the husk and camellia seed, pile and ferment the obtained fresh husk, spread it out to dry naturally or air-dry, and then purify it to obtain fermented husk;
[0051] S2, putting camellia seeds into the extrusion cavity between the main shaft and the circular row, and then rotating the main shaft to transport the camellia seeds from front to back, and the camellia seeds are squeezed out into camellia oil and oil cake after passing through the pre-pressing section, the main pressing section and the cake-forming section;
[0052] S3, mixing the camellia oil with the fermented fruit shell, and putting it into the extrusion cavity between the main shaft and the circular row for secondary pressing, and finally obtaining the sauce-flavored camellia oil.
[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0054] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.
Claims
1. A Maotai-flavor tea oil preparation device, characterized in that: The machine comprises a frame assembly, wherein the frame assembly is provided with a shell, wherein a pressing cage is provided inside the shell, wherein a circular row is detachably installed inside the pressing cage, wherein the axis of the circular row extends in the front-rear direction, wherein a main shaft is provided inside the circular row for coaxial rotation, wherein an extrusion chamber is formed between the main shaft and the circular row, wherein the extrusion chamber is used for extruding materials; wherein the main shaft comprises a pre-pressing section, a main pressing section and a cake-forming section which are sequentially distributed front to back, wherein the diameter of the cake-forming section is larger than the diameter of the pre-pressing section, and the main pressing section is conical; wherein main spiral blades are provided on the pre-pressing section, the main pressing section and the cake-forming section, wherein the main spiral blades convey materials from front to back; wherein the pre-pressing section is also provided with auxiliary spiral blades, wherein the main spiral blades convey materials from front to back; wherein the main spiral blades are provided on the pre-pressing section ... The auxiliary spiral blade has the same rotation direction as the main spiral blade, and the auxiliary spiral blade and the main spiral blade are interspersed in the front-to-back direction. Each turn of the auxiliary spiral blade is located between two adjacent turns of the main spiral blade. The maximum diameter of the auxiliary spiral blade is smaller than the maximum diameter of the main spiral blade. A connecting port is provided on each turn of the auxiliary spiral blade, and the connecting port is fitted with the outer peripheral surface of the pre-compression section; the connecting port is used to connect the chambers on the front and rear sides of the auxiliary spiral blade, and an annular groove is provided at a position corresponding to the connecting port on the pre-compression section, and the annular groove is coaxial with the main shaft. A rotating ring is rotatably provided in the annular groove, and the diameter of the rotating ring is the same as the diameter of the pre-compression section.
2. The Maotai-flavor tea oil preparation equipment according to claim 1, characterized in that: The pitch of the auxiliary helical blade is the same as the pitch of the main helical blade.
3. The Maotai-flavor tea oil preparation equipment according to claim 1, characterized in that: The pitch of the auxiliary helical blade is smaller than the pitch of the main helical blade.
4. The Maotai-flavor tea oil preparation equipment according to claim 1, characterized in that: A feed port is provided in front of the pressing cage, and the feed port corresponds to the front end of the pre-pressing section; a bar row is also provided inside the pressing cage, and the bar row is located in front of the circular row, and the bar row is used to guide the material to be transported backward.
5. The Maotai-flavor tea oil preparation equipment according to claim 4, characterized in that: A feed hopper is provided in front of the shell, and the feed hopper corresponds to the feed port of the pressing cage; an oil outlet is also provided on the side of the shell, and an oil outlet groove is provided on the circular row, and the oil outlet corresponds to the oil outlet groove. The oil outlet is provided with an oil collecting plate, and the oil collecting plate is used to collect the squeezed liquid.
6. The Maotai-flavor tea oil preparation equipment according to claim 5, characterized in that: The main shaft also includes a head end and a tail end, wherein the head end is located in front of the pre-pressing section, and the tail end is located behind the cake-forming section. The tail end is provided with a slag discharge device, and the slag discharge device is used to discharge the squeezed solid out of the shell.
7. The Maotai-flavor tea oil preparation equipment according to claim 6, characterized in that: A driving motor and a transmission member are provided on one side of the frame assembly. The driving motor drives the transmission member to rotate through a transmission belt, and the transmission member is in driving connection with the head end of the main shaft.
8. A process for preparing Maotai-flavor tea oil, characterized in that: Using the Maotai-flavor tea oil preparation device according to any one of claims 1 to 7 comprises the following steps: S1. Take fresh and ripe camellia fruit, peel and separate the husk and camellia seed, pile and ferment the obtained fresh husk, spread it out to dry naturally or air-dry, and then purify it to obtain fermented husk; S2, putting camellia seeds into the extrusion cavity between the main shaft and the circular row, and then rotating the main shaft to transport the camellia seeds from front to back, and the camellia seeds are squeezed out into camellia oil and oil cake after passing through the pre-pressing section, the main pressing section and the cake-forming section; S3, mixing the camellia oil with the fermented fruit shell, and putting it into the extrusion cavity between the main shaft and the circular row for secondary pressing, and finally obtaining the sauce-flavored camellia oil.
Citation Information
Patent Citations
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CN209107100U
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CN214646115U
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CN216001586U