TWI753611B - Oil press - Google Patents

Abstract

An oil press, comprising: a main body, including a base, a first support part and a second support part, the first support part extends upward from the base, and the second support part is detachably fixed to the first support part and has a first through hole; an operating piece is overlapped with the first through hole; a first joint part is arranged on the operating piece to be linked with it; an extrusion piece, one end of the extrusion piece has a first through hole; Two engaging portions are used for interlocking with the first engaging portion; and a positioning member is combined with the first supporting portion. The oil press can be equipped with a trough barrel with a special shape opening, the trough barrel is convenient for loading raw materials and can guide the extrusion part to enter the trough barrel more easily, and the positioning member can assist in the trough barrel. The slag exits. Therefore, the oil press of the present invention greatly improves the convenience of the user's operation.

Description

oil press

The present invention relates to an oil press, in particular to an oil press equipped with a pressing tank barrel with an opening of a special shape.

With the continuous improvement of people's living standards, more and more attention is paid to health and wellness in diet. Moreover, in recent years, food safety problems have emerged one after another, so the demand for self-extracting cooking oil at home is increasing. At present, the common household oil presses on the market are used for small-scale oil extraction. The general public can extract an appropriate amount of oil in time, and master the manufacturing process of oil products, which is relatively safe and secure to eat. In addition, the public can choose the type of oil according to their own preferences or needs, and choose different types of oil according to different diets, nutritional intake needs or cooking methods.

It is known that after the raw material is squeezed by the domestic oil press, the barrel of the pressing tank may generate heat due to the preheating treatment of the raw material, and it is not easy to withdraw the compacted dregs in the barrel. Furthermore, the conventional oil press has a complex structure and many parts. On the one hand, it is not easy to clean and disassemble the oil press, and on the other hand, the cost of manufacturing the oil press will also increase accordingly.

In view of this, it is necessary to provide an improved oil press to solve the problems existing in the prior art.

In order to solve the problems of the prior art, the present invention provides an oil press, comprising: a main body, including a base, a first support part and a second support part, the first support part is extended upward from the base, the second support The part is detachably fixed to the first support part, wherein the second support part has a first through hole; the operating part is overlapped with the first through hole, and the operating part has a force-resistant end and an opposite to the force-resistant end For the force-applying end, the cross-sectional area of the force-resisting end of the operating piece is not greater than the cross-sectional area of the first through hole, so that the force-resisting end of the operating piece can overlap the first through-hole; On the operating piece, it is used to be linked with the operating piece; an extruding piece, one end of the extruding piece is provided with a second joint part for engaging with the first joint part, and the second joint part is used for connecting with the first joint part. The first joint part is interlocked, the other end of the extruding part has an extruding part; and the positioning part is arranged under the second supporting part and combined with the first supporting part.

According to an embodiment of the present invention, the first support portion further includes a second through hole for accommodating a portion of the operating member.

According to an embodiment of the present invention, the second support portion further includes an accommodating portion disposed at a position where the second support portion moves relative to the extrusion member through the first joint portion, wherein the accommodating portion has an accommodating space , and the cross-sectional area of the accommodating space is equal to or greater than the radial cross-sectional area of the second joint portion.

According to an embodiment of the present invention, the first support portion has a first joint portion, and the positioning member has a second joint portion combined with the first joint portion.

According to an embodiment of the present invention, the first joint portion is an opening and the second joint portion is a convex portion, or the first joint portion is a convex portion and the second joint portion is an opening.

According to an embodiment of the present invention, the positioning member further includes a positioning opening, and a predetermined distance is formed between the positioning opening and the second engaging portion.

According to an embodiment of the present invention, the circumference of the inner edge of the positioning opening is equal to or greater than the circumference of the radial section of the first end of the barrel body, and smaller than the circumference of the radial section of the outer edge of the first extension portion.

According to an embodiment of the present invention, the base further includes a first stop portion.

According to an embodiment of the present invention, the base further includes a second stop portion.

According to an embodiment of the present invention, the oil press further includes a trough barrel, which is detachably disposed on the base, wherein the trough barrel includes: a barrel body and a first extension part. The barrel has a first end and a second end opposite to the first end, wherein the first end is provided with a first opening and the second end is provided with a second opening, and the first opening to the second There is a through portion between the openings, and the radial cross-sectional area of the extrusion portion is equal to or smaller than the radial cross-sectional area of the inner edge of the through portion; a first extension portion, the first extension portion is arranged on the first part of the barrel The radial cross-sectional area of the first extension portion is not less than the radial cross-sectional area of the first end of the barrel.

According to an embodiment of the present invention, the first extension portion has an outer edge disposed on a side of the first extension portion away from the first end of the barrel, wherein the radial cross-sectional area of the first extension portion is directed toward The outer edge of the first extension portion increases gradually.

According to an embodiment of the present invention, the oil press further includes a second extending portion, the second extending portion is disposed at the second end of the barrel, and the radial cross-sectional area of the second extending portion is not smaller than that of the barrel. The radial cross-sectional area of the second end.

According to an embodiment of the present invention, the second extension portion has an outer edge disposed on a side of the second extension portion away from the second end of the barrel, wherein the radial cross-sectional area of the second extension portion faces the The outer edge of the second extension portion is gradually increased.

According to an embodiment of the present invention, the barrel body is provided with a plurality of third through holes.

According to an embodiment of the present invention, the plurality of third through holes are arranged at intervals.

According to an embodiment of the present invention, the oil press further includes a liquid collecting cup, which is detachably arranged below the pressing tank.

According to an embodiment of the present invention, the collecting cup has a bottom, wherein the center of the bottom of the collecting cup is higher than the edge of the bottom of the collecting cup.

Compared with the prior art, the oil press provided by the present invention can be matched with the special-shaped opening of the press groove barrel, the press groove barrel is convenient for loading raw materials and can guide the extrusion parts of the oil press more easily. into the trough barrel. In addition, the positioning member of the oil press can assist the dregs in the trough to be ejected. Therefore, the present invention greatly improves the convenience of the user's operation during the process of charging, pressing and slag removal. Furthermore, the structure of the oil press is simple, the user is more convenient in disassembly, assembly and cleaning, and the cost of making the oil press is reduced.

The embodiments of the present invention are described below by means of specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied by other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is an exploded view of an oil press 100 according to an exemplary embodiment of the present invention, and FIG. 2 is a schematic diagram of the operating member 3 of the oil press 100 of the present invention interlocking the extrusion member 5 . The oil press 100 may include a body 2 , an operating member 3 , a first engaging portion 4 , an extrusion member 5 and a positioning member 6 . The body 2 may include a base 21 , a first support portion 22 and a second support portion 23 , the first support portion 22 may extend upward from the base 21 , the first support portion 22 may have a second through hole 221 , and the first support portion 22 may have a second through hole 221 . The two support parts 23 are detachably fixed to the first support part 22 , wherein the second support part 23 may have a first through hole 231 . The operating member 3 can overlap the first through hole 231 and pass through the second through hole 221 , and the operating member 3 can have a resistance end 31 disposed on one side of the second through hole 221 and disposed on the first through hole 221 . On the other side of the two through holes 221 , relative to the force-applying end 32 of the force-resisting end, the cross-sectional area of the force-resisting end 31 of the operating element 3 may not be greater than the cross-sectional area of the first through-hole 231 , which can be used for the force-resisting end 31 of the operating element 3 overlap with the first through hole 231 . The first engaging portion 4 can be disposed on the operating member 3 to be linked with the operating member 3 . One end of the extrusion part 5 may have a second engaging part 51 for engaging with the first engaging part 4 , the second engaging part 51 can be used for linkage with the first engaging part 4 , and the other part of the extrusion part 5 One end has a pressing portion 52 . The positioning member 6 can be disposed under the second support portion 23 and combined with the first support portion 22 .

According to an embodiment of the present invention, the second support portion 23 can be fastened to the first support portion 22 through fasteners such as screws or rivets.

According to an embodiment of the present invention, the second support portion 23 may include an accommodating portion 232 , which may be disposed at a position where the second support portion 23 moves relative to the extrusion member 5 through the first joint portion 4 , wherein the accommodating portion 232 The portion 232 has an accommodating space, and the sectional area of the accommodating space can be equal to or greater than the radial sectional area of the second joint portion 51 for accommodating the second joint portion 51 of the extrusion member 5 .

According to an embodiment of the present invention, the first engaging portion 4 may have a first groove 41 , and the side of the resistance end 31 of the operating member 3 may have a second groove 33 , wherein the second groove 33 may be opposite to each other. In the first groove 41, the oil press can also have a snap-fit piece 42, wherein the snap-fit piece 42 can be disposed between the first groove 41 and the second groove 33, and is connected with the first groove 41. A groove 41 and the second groove 33 are engaged with each other, so that the operating member 3 and the first engaging portion 4 are linked with each other.

According to an embodiment of the present invention, the first engaging portion 4 and the second engaging portion 51 are engaged with each other and are linked with each other, wherein the first engaging portion 4 can be a gear, the second engaging portion 51 can be a rack, The two mesh with each other, but not limited thereto.

According to an embodiment of the present invention, the resistance end 31 of the operating member 3 may have a third groove (not shown in the figure), and the third groove may be annularly disposed on the resistance end 31 .

According to an embodiment of the present invention, the oil press can further have a collar 34 , which can be sleeved on the third groove for positioning the resistance end 31 of the operating member 3 .

According to an embodiment of the present invention, the operating member 3 is a long rod and may have a bending portion 35, one side of the bending portion 35 may be the resistance end 31 and partially penetrate the second through hole 221, The other side of the bent portion 35 can be the force-applying end 32 .

According to an embodiment of the present invention, the force-applying arm of the force-applying end 31 may be smaller than the force-applying arm of the force-applying end 32 .

According to an embodiment of the present invention, the first engaging portion 4 may be disposed on the operating member 3 and located between the bending portion 35 and the collar 34 .

Please refer to FIG. 3 , which is a schematic diagram of a squeezing barrel according to an exemplary embodiment of the present invention. The press tank 1 includes a barrel body 11 and a first extension portion 141 . The barrel 11 may have a first end 14 and a second end 15 opposite to the first end 14 , wherein the first end 14 may be provided with a first opening 142 and the second end 15 may be provided with a second opening 152 , and there may be a through portion 13 between the first opening 142 and the second opening 152 , and the radial cross-sectional area of the pressing portion 52 is equal to or smaller than the radial cross-sectional area of the inner edge of the through portion 13 . In this embodiment, the first extension portion 141 may be disposed at the first end 14 of the barrel 11 , preferably, the radial cross-sectional area of the first extension 141 may not be smaller than the first end of the barrel 11 . 14 radial cross-sectional area.

According to an embodiment of the present invention, the first extension portion 141 may have an outer edge 16 and may be disposed on a side of the first extension portion 141 away from the first end 14 of the barrel 11 , as shown in FIG. 3 , the The radial cross-sectional area of the first extension portion 141 may gradually increase toward the outer edge 16 of the first extension portion 141 .

According to an embodiment of the present invention, when raw materials for oil extraction, such as sesame, peanuts, etc., are loaded into the trough 1 of the present invention, the user can put the raw materials into the barrel 11 through the first extension 141 . In the through portion 13 , since the radial cross-sectional area of the first extension portion 141 can gradually increase toward the outer edge 16 of the first extension portion 141 , the material can be easily put into the first opening 142 when the material is loaded. , and slide down smoothly into the penetration portion 13 . In addition, please refer to FIG. 1 again. Compared with the conventional structural design of the barrel body of the pressing tank and the radial cross-sectional area of the outer edges at both ends of the barrel, the pressing barrel 1 of the present invention has the same The radial cross-sectional area can be gradually increased toward the outer edge 16 of the first extension portion 141 . Therefore, when the press trough 1 of the present invention is matched with the extruding member 5 and the like, it is used to enter the through portion 13 , so as to match the trough 1 of the present invention. structure, in the process of squeezing out oil or other liquids, there can be a larger operating fault tolerance. According to the present invention, the opening of the barrel 11 of the squeezing barrel 1 does not need to be completely aligned with the extrusion member 5. The extrusion member 5 can also enter into the barrel through-section 13 of the press trough with the assistance of the first extension 141 .

According to another embodiment of the present invention, the second end 15 of the barrel 11 may be provided with a second extension portion 151 , and the radial cross-sectional area of the second extension 151 may not be smaller than the diameter of the second end 15 of the barrel 11 . to the cross-sectional area.

According to an embodiment of the present invention, the second extension portion 151 has an outer edge 17 , which can be disposed on a side of the second extension portion 151 away from the second end 15 of the barrel 11 , wherein the second extension portion 151 has an outer edge 17 . The radial cross-sectional area may increase toward the outer edge 17 of the second extension portion 151 .

According to an embodiment of the present invention, when the oil pressing barrel 1 of the present invention is used to hold the raw material to be pressed for oil, the user can selectively put the raw material into the barrel through the first extension portion 141 or the second extension portion 151 In the penetration portion 13 of the body 11 , it is not necessary to distinguish the use direction of the pressing tank 1 . Since the radial cross-sectional area of the first extension part 141 or the second extension part 151 can gradually increase toward the outer edge 16 of the first extension part 141 or the outer edge 17 of the second extension part 151 , when the raw material is loaded, the , the raw material can be easily put into and smoothly slipped into the through portion 13, and at the same time, the outer edge 17 of the second extension portion 151 can also have the convenience of the aforementioned first extension portion 141. effect.

According to an embodiment of the present invention, the barrel 11 may be provided with a plurality of third through holes 12 for the oil obtained by pressing to be released from the barrel 11 .

According to a preferred embodiment of the present invention, the third through holes 12 can be substantially spaced and evenly distributed between the first end 14 to the second end 15 of the barrel 11 .

According to an embodiment of the present invention, the user can put the raw material into the through part 13 through the first extension part 141 or the second extension part 151 , and the third through holes 12 can be evenly distributed in the first part of the barrel 11 . Between the end 14 and the second end 15, the oil obtained by pressing the raw materials in the through portion 13 of the barrel body 11 can be released from the barrel body 11 through the third through hole 12, thereby making The use of the trough 1 does not have to follow a specific directionality.

Referring to FIG. 4 , according to the present invention, the oil press 100 may further include a liquid collecting cup 7 .

According to an embodiment of the present invention, the liquid collecting cup 7 is detachably disposed below the pressing tank 1 and above the base 21 .

According to an embodiment of the present invention, the collecting cup 7 may have a bottom 71 , and the center of the bottom 71 may be higher than the edge of the bottom 71 of the collecting cup.

According to an embodiment of the present invention, the bottom 71 of the liquid collecting cup 7 can be gradually increased from the edge to the center to form a raised portion 711 .

According to an embodiment of the present invention, the raised portion 711 may correspond to the first extension portion 141 or the second extension portion 151 , and the pressing tank 1 can be placed on the liquid collecting cup 7 to reach the pressing tank 1 positioning effect. As mentioned above, the radial cross-sectional area of the first extension portion 141 or the second extension portion 151 can be gradually increased toward the outer edge 16 of the first extension portion 141 or the outer edge 17 of the second extension portion 151. For example, the protruding portion 711 may correspond to the shape and structure of the outer edge 16 of the first extending portion 141 or the outer edge 17 of the second extending portion 151, so as to more easily locate the pressing tank 1 on the set on the liquid cup 7.

According to an embodiment of the present invention, after the oil obtained by pressing flows out from the first extension part 141 or the second extension part 151 or from the third through hole 12 , it can flow to the collector through the raised part 711 . The edge of the liquid cup 7 is convenient for the user to collect the oil obtained by pressing.

According to the present invention, when the user operates the oil press 100 to extract oil, the user can place the first extension 141 or the second extension 151 of the trough 1 corresponding to the protrusion 711 of the liquid collecting cup 7 . In the collecting cup 7 , the raw materials are put into the barrel 11 . Next, lift the force-applying end 32 of the operating member 3 upward to link the second engaging portion 51 , so that after the pressing member 5 moves upward, the liquid collecting cup 7 and the squeezing tank 1 are placed on the pressing member 5 Downward; and then the force-applying end 32 of the operating member 3 is pressed downward, so that the extruding member 5 moves downward, enters the through-section 13 and squeezes the raw materials therein, and the oil obtained by pressing can pass through the third through-hole 12 is released, or flows out from the first extension portion 141 or the second extension portion 151 , and flows into the collecting cup 7 .

According to an embodiment of the present invention, during the pressing process, the user only needs to lift the force-applying end 32 once, and then press it down again to complete the oil-pressing action. Compared with the conventional manual oil press, the screw is rotated to lift the extruder, and the extruder needs to be rotated repeatedly to lift the extruder to a certain height, and then the extruder is repeatedly rotated to go deep into the pressing tank for pressing, and the present invention The design of the operating member 3 and the interlocking extrusion member 5 of the oil press 100 makes the process of oil pressing more convenient and time-saving.

According to an embodiment of the present invention, when the pressing member 5 moves downward, the trough barrel 1 can pass through the first extending portion 141 or the second extending portion 151 close to the pressing member 5 to the barrel body. 11 is positioned directly below the extruding part 5, so that the extruding part 5 can smoothly enter the penetrating part 13 with the assistance of the first extending part 141 or the second extending part 151 to press the raw material.

According to an embodiment of the present invention, the oil press 100 may further include a positioning member 6 , which may be disposed under the second support portion 23 and combined with the first support portion 22 .

According to an embodiment of the present invention, the first support portion 22 can have a first joint portion 222 , and the positioning member 6 can have a second joint portion 61 combined with the first joint portion 222 , wherein the first joint portion The 222 can be an opening, and the second combining part 61 can be a convex part, or the first combining part 222 can be a convex part, and the second combining part 61 can be an opening.

According to an embodiment of the present invention, the positioning member 6 may further include a positioning opening 62 , and a predetermined distance may be formed between the positioning opening 62 and the second engaging portion 51 .

According to an embodiment of the present invention, the circumference of the inner edge of the positioning opening 62 may be equal to or greater than the circumference of the radial section of the first end 14 and/or the second end 15 of the barrel 11 , and may be smaller than the first end 14 and/or the circumference of the radial section of the second end 15 The circumference of the radial cross-section of the outer edge 16 of the extension part 141 and/or the outer edge 17 of the second extension part 151 , in a situation of use, the first extension part 141 or the second extension part 151 can be located at the location The first extension portion 141 or the second extension portion 151 can be engaged with the positioning port 62 , so that the trough barrel 1 is suspended from the positioning member 6 .

According to the present invention, after the oil obtained by pressing is released, the compacted dregs may remain in the penetration portion 13 , and the user can lift the force-applying end 32 of the operating member 3 upwards, so that the pressing member 5 moves upwards. Move and hang the slag-containing pressing tank 1 on the positioning member 6, and then apply force to the force end 32 of the operating member 3 downward, so that the extrusion member 5 moves downward and enters the penetration portion 13 and push the dregs out of the trough 1.

According to the present invention, according to the characteristics of different raw materials, the raw materials can be heated and then pressed. The squeezing barrel 1 that generates heat after pressing can be held at the first extension portion 141 or the second extending portion 151 away from the dregs, and the trough 1 is hung in the positioning opening 62, and then the dregs Exit the trough barrel 1. In the present invention, after oil extraction or slag removal, through the design of the first extension portion 141 or the second extension portion 151 of the trough 1 and the positioning member 6 of the oil press 100, the user can safely Hold the trough 1 to reduce the risk of burns.

According to the present invention, the user can achieve the actions of squeezing the raw material and ejecting the dregs through the same extrusion element 5 . The oil press 100 of the present invention does not need to use other additional tools for slag removal, which is more convenient to use. In addition, there is no need to add additional slag removal equipment, which can also make the oil press 100 of the present invention simpler in structure and cost saving.

According to an embodiment of the present invention, the base 21 may further include a first stop portion 211 , and the first stop portion 211 can position the liquid collecting cup 7 at a position substantially corresponding to the extrusion member 5 during oil extraction. Location.

According to an embodiment of the present invention, the base 21 may further include a second stop portion 212 , and the force-applying end 32 of the operating member 3 can be placed on the second stop portion 212 . When extracting oil, hold the operating member 3 and apply downward force. When the force-applying end 32 contacts the second stop portion 212, it can be known that the oil-extracting action has been completed, and the force-applying end of the operating member 3 can be avoided. 32 hits the base 21 .

To sum up, the oil press 100 provided by the present invention can be matched with the special-shaped opening of the press tank 1, which is convenient for loading raw materials and can guide the extrusion parts of the oil press 100. 5 It is easier to enter the trough barrel 1. In addition, the positioning member 6 of the oil press 100 can assist in withdrawing the dregs in the trough 1. Therefore, the present invention greatly improves the convenience of the user's operation during the process of charging, pressing and slag removal. sex. Furthermore, the structure of the oil press 100 is simple, the user is more convenient in disassembly, assembly and cleaning, and the cost of manufacturing the oil press 100 is reduced.

1: Squeeze barrel 11: Barrel body 12: Third through hole 13: Through part 14: First End 142: First opening 141: First extension 15: Second end 151: Second extension 152: Second Opening 16: Outer Rim 17: Outer Rim 2: body 21: base 211: First gear stop 212: Second gear stop 22: The first support part 221: The second through hole 222: The first joint 23: Second support part 231: First through hole 232: accommodating part 3: Operation part 31: Resistance end 32: Force end 33: Second groove 34: Collar 35: Bending part 4: The first joint part 41: The first groove 42: Snaps 5: Extrusion 51: Second Joint 52: Extrusion Department 6: Positioning member 61: Second joint 62: Positioning port 7: Collection cup 71: Bottom 711: Raised part 100: Oil press

FIG. 1 is an exploded view of an oil press according to an exemplary embodiment of the present invention.

Fig. 2 is a schematic diagram of the operating member of the oil press interlocking the extrusion member of the present invention.

FIG. 3 is a schematic diagram of a press vat according to an exemplary embodiment of the present invention.

FIG. 4 is a cross-sectional view of the squeezing tank matched with the liquid collecting cup of the present invention.

1: Squeeze barrel

2: Ontology

21: Base

211: First gear stop

212: Second gear stop

22: The first support part

221: Second through hole

222: The first joint

23: Second support part

231: The first through hole

232: accommodating part

3: Operating parts

4: The first joint

5: Extrusion

6: Positioning parts

61: The second joint

62: Positioning port

7: Collection cup

100: Oil press

Claims (17)

An oil press, comprising: a main body, including a base, a first support part and a second support part, the first support part is extended upward from the base, and the second support part is detachably fixed to the first support part, wherein the second support part has a first through hole; the operating part is overlapped with the first through hole, the operating part has a force-resisting end and a force-applying end opposite to the force-resisting end, and the force-resisting end of the operating piece is located between The cross-sectional area is not greater than the cross-sectional area of the first through hole, so as to allow the resistance end of the operating member to overlap the first through hole; the first joint portion is disposed on the operating member for connecting with the operating member Linkage; extrusion, one end of the extrusion has a second joint for engaging with the first joint, the second joint is used to link with the first joint, the extrusion The other end has a pressing part; a positioning piece is arranged under the second support part and is combined with the first support part; The barrel includes a barrel body, the barrel body has a first end and a second end opposite to the first end, wherein the first end is provided with a first opening and the second end is provided with a second opening, and the first end is provided with a second opening. There is a through portion between the opening and the second opening, and the radial cross-sectional area of the extrusion portion is equal to or smaller than the radial cross-sectional area of the inner edge of the through portion. The oil press as claimed in claim 1, wherein the first support portion further comprises a second through hole for accommodating a portion of the operating member. The oil press of claim 1, wherein the second support portion further comprises a accommodating portion disposed at a position where the second support portion moves relative to the extrusion member through the first joint portion, wherein the accommodating portion There is an accommodating space, and the sectional area of the accommodating space is equal to or greater than the radial sectional area of the second joint portion. The oil press of claim 1, wherein the first support portion has a first joint portion, and the positioning member has a second joint portion combined with the first joint portion. The oil press of claim 4, wherein the first joint part is an opening and the second joint part is a convex part, or the first joint part is a convex part and the second joint part is an opening. The oil press of claim 1, wherein the positioning member further comprises a positioning opening, and a predetermined distance is formed between the positioning opening and the second joint portion. The oil press of claim 1, wherein the base further includes a first stop. The oil press of claim 1, wherein the base further includes a second stop. The oil press of claim 1, wherein the groove barrel comprises: a first extension part, the first extension part is disposed at the first end of the barrel body, and the radial cross-sectional area of the first extension part is not less than The radial cross-sectional area of the first end of the barrel. The oil press of claim 9, wherein the first extension has an outer edge, which is disposed on a side of the first extension away from the first end of the barrel, wherein the radial direction of the first extension is The cross-sectional area increases toward the outer edge of the first extension. The oil press of claim 9, further comprising a second extension, the second extension is disposed at the second end of the barrel, and the radial cross-sectional area of the second extension is not less than the length of the barrel The radial cross-sectional area of the second end. The oil press of claim 11, wherein the second extension portion has an outer edge, which is disposed on a side of the second extension portion away from the second end of the barrel, wherein a radial cross section of the second extension portion The area increases towards the outer edge of the second extension. The oil press of claim 9, wherein the barrel body is provided with a plurality of third through holes. The oil press of claim 13, wherein the plurality of third through holes are arranged at intervals. The oil press according to claim 9, wherein the liquid collecting cup is further included, which is detachably arranged below the pressing tank barrel. The oil press of claim 15, wherein the collecting cup has a bottom, wherein the center of the bottom of the collecting cup is higher than the edge of the bottom of the collecting cup. The oil press of claim 9, wherein the positioning member further comprises a positioning opening, a predetermined distance is formed between the positioning opening and the second joint portion, and the circumference of the inner edge of the positioning opening is equal to or greater than the diameter of the barrel body. The circumference of the radial section of the first end is smaller than the circumference of the radial section of the outer edge of the first extension part.

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