Detachable structure of oil press barrel

Abstract

The detachable structure of the oil press barrel comprises a machine body and the barrel, an inner cavity of the barrel is coaxially connected with a pressing rod in a rotating mode, and the detachable structure of the oil press barrel further comprises a clamping ring. The clamping ring comprises a fixed clamping ring, a movable clamping ring and a clamping block; the fixed clamping ring is fixed to one side wall of the machine body, the pressing rod is contained in the middle of the fixed clamping ring, and a clamping groove is formed in the outer wall of the fixed clamping ring. The movable clamping ring is arranged on the periphery of the barrel in a sleeving mode, and the movable clamping ring and the fixed clamping ring are oppositely arranged at intervals; a plurality of containing grooves arranged at intervals are formed in the inner wall, opposite to the containing cavity, of the movable clamping ring, and a protruding block is fixed to one end face of the barrel in the circumferential direction and can penetrate through the containing grooves to enter a gap between the movable clamping ring and the fixed clamping ring. The clamping block is fixed to one side wall of the movable clamping ring and can be clamped in the clamping groove along with rotation of the movable clamping ring so as to limit axial movement of the barrel. By means of the unique clamping ring structure, the barrel and the machine body can be easily and conveniently disassembled, the barrel can be conveniently cleaned, the structure is simple, and assembling and disassembling are convenient.

Description

Technical Field

[0001] This utility model relates to the field of oil press technology, and more specifically to a detachable structure for the pressing chamber of an oil press. Background Technology

[0002] An oil press is a machine that uses external mechanical force to increase temperature, activate oil molecules, and squeeze oil out of oilseeds.

[0003] Oil presses extract oil through the interaction of a pressing rod and a pressing chamber. Currently, most oil presses have difficult-to-disassemble pressing chambers and bodies, increasing the difficulty of cleaning the pressing chamber. Inadequate cleaning of the pressing chamber compromises oil extraction and can also contaminate the motor inside the machine, affecting production. For example, a utility model patent (authorization announcement number CN 215970243 U, authorization announcement date 2022.03.08) discloses an oil press that uses a retaining ring to achieve a detachable connection between the pressing chamber and the body. This retaining ring engages the pressing chamber by pressing. During prolonged use, oil can easily seep into the locking mechanism, jamming the spring. This often results in the unlocking mechanism being unable to be manually pressed, requiring tools to be used to knock it open, which is time-consuming and laborious.

[0004] Therefore, how to provide a detachable structure for the pressing chamber that can easily connect the pressing chamber to the body of the oil press without causing the pressing chamber to jam, and facilitate the cleaning of the pressing chamber, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a detachable structure for the pressing chamber of an oil press, which enables convenient and easy disassembly between the machine body and the pressing chamber through a retaining ring structure, preventing the pressing chamber from getting stuck, facilitating the cleaning of the pressing chamber, and improving the oil quality of the oil press.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A detachable structure for the pressing chamber of an oil press includes a machine body and a pressing chamber, wherein a pressing rod is coaxially rotatably connected to the inner cavity of the pressing chamber, and a retaining ring is also included.

[0008] The retaining ring includes a fixed retaining ring, a movable retaining ring, and a retaining block; the fixed retaining ring is fixed to one side wall of the machine body, and a central hole for accommodating the pressing rod is opened in the middle of the fixed retaining ring, and a locking groove is opened on its outer wall; the movable retaining ring has a receiving cavity in the middle to fit around the outer periphery of the pressing chamber, and the movable retaining ring is opposite to the fixed retaining ring and arranged at intervals.

[0009] The movable retaining ring has multiple spaced receiving grooves on the inner wall of the receiving cavity. A protrusion adapted to the receiving groove is fixed circumferentially on one end face of the pressing chamber. The protrusion can penetrate the receiving groove and enter the gap between the movable retaining ring and the fixed retaining ring. The locking block is fixed on one side wall of the movable retaining ring and can be locked in the locking groove as the movable retaining ring rotates to restrict the axial movement of the pressing chamber.

[0010] The beneficial effects of this utility model are as follows: the fixed retaining ring is fixed to the machine body, and the movable retaining ring is sleeved on the pressing chamber. When the pressing chamber is installed, its protrusion is aligned with the receiving groove on the movable retaining ring. When the protrusion is in the gap between the fixed retaining ring and the movable retaining ring, the movable retaining ring is rotated to make the retaining block engage in the engaging groove on the fixed retaining ring. Since the protrusion is located between the movable retaining ring and the fixed retaining ring, the movable retaining ring engages with the fixed retaining ring. The limiting effect of the movable retaining ring will not cause the pressing chamber to move axially, thus connecting the pressing chamber to the machine body. After installation, the pressing rod is connected to the output shaft of the motor in the machine body to perform oil pressing. When disassembly is required, the movable retaining ring is rotated to release the engagement of the pressing chamber. This method can easily realize the installation and disassembly of the pressing chamber, and will not cause the pressing chamber to become stuck on the retaining ring due to long-term use, thus facilitating the installation and disassembly of the pressing chamber.

[0011] Preferably, the engaging groove includes a rotating groove and an insertion groove, which are interconnected to form an L-shaped engaging groove. The locking block is arc-shaped, with its outer arc surface on the same plane as the outer wall of the movable retaining ring, and an insert block adapted to the insertion groove fixed at the top of its inner arc surface. During installation, the insert block is aligned with the insertion groove, and the protrusion is aligned with the receiving groove. After the protrusion enters the gap between the fixed retaining ring and the movable retaining ring, the movable retaining ring is slightly pushed and rotated along the direction of the fixed locking block. At this time, the insert block can enter the rotating groove, and the groove wall of the rotating groove can lock the insert block, thereby realizing the engagement between the fixed retaining ring and the movable retaining ring.

[0012] Preferably, a wrench is fixed to one end of the movable retaining ring to allow the movable retaining ring to rotate. Rotating the wrench allows the movable retaining ring to rotate.

[0013] Preferably, a fixing plate is fixed to the end of the retaining ring, and the fixing plate has multiple bolt holes for bolting to the machine body; multiple arc-shaped grooves are formed on the periphery of the retaining ring relative to the central hole. The retaining ring is bolted to the machine body through the fixing plate; the arc-shaped grooves on the retaining ring prevent protruding particles from forming on the surface where the retaining ring abuts against the press chamber during the casting process, thus improving the sealing performance of the connection between the press chamber and the retaining ring.

[0014] Preferably, the outer wall of the pressing chamber near the machine body has an oil discharge groove, and the outer wall of the chamber away from the machine body has an oil collection groove. The oil collection groove can collect the pressed oil. In actual use, there may be excess oil in the oil collection groove, or the oil outlet on the oil collection groove may be blocked, which will cause oil to flow into the machine body and affect the operation of the oil press. By adding an oil discharge groove near the machine body of the pressing chamber, excess oil can be discharged from the oil discharge groove, preventing pollution or damage to the machine body, improving the service life of the oil press and reducing its maintenance costs.

[0015] Preferably, a heating assembly is fixed to the outer wall of the pressing chamber, the heating assembly including a heating body, a heat-conducting core and heating plates;

[0016] The bottom wall of the heating body is provided with a sliding groove that extends through both end faces of the heating body, and the top wall of the heating body is provided with an assembly groove; the heat-conducting core is slidably connected in the sliding groove, and there is a heating cavity between the top wall of the heat-conducting core and the inner wall of the bottom of the sliding groove; the heating element is inserted into the assembly groove to provide heat to the heating cavity through the heating body, thereby heating the pressing chamber.

[0017] The beneficial effects of the above technical solution are that the heating cavity formed by the heat-conducting core and the heating body can surround the equipment to be heated, and heat is provided to the heating cavity through the heating element, which can provide 360° ring heating to the equipment to be heated. The detachable connection between the heat-conducting core and the heating body facilitates the installation, removal and maintenance of the heating device. The heating element can be replaced by pulling it out of the assembly slot, which improves the overall flexibility and ease of use of the heating device.

[0018] Preferably, the device further includes a limiting plate, one end of which is hinged to a side wall of the heating body, and the other end of which abuts against a side end face of the heat-conducting core to restrict its axial sliding relative to the slide groove. The limiting plate can restrict the sliding of the heat-conducting core along the slide groove, preventing the heat-conducting core from slipping during use and affecting the heating effect.

[0019] Preferably, it also includes a cover plate, with the top surface of the heating body open relative to the assembly groove. The cover plate is bolted to the top surface of the heating body by a screw to cover the heating element. The heating body can be connected to the pressing chamber through the cooperation of the cover plate and the screw. The heating element can be replaced by removing the cover plate and flipping it over.

[0020] Preferably, the device also includes a spring. The screw penetrates vertically through the cover plate and is slidably connected to it. The spring is sleeved on the screw, and its two ends abut against the two opposite panels of the cover plate and the flip cover, respectively. Vibration inevitably occurs in the pressing chamber during operation. The screw can slide up and down along the top wall of the heating body. The screw, in conjunction with the spring, can absorb the energy generated during the vibration of the pressing chamber, ensuring the stable and efficient operation of the oil press.

[0021] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a detachable structure for the pressing chamber of an oil press. The unique retaining ring structure realizes the detachable connection between the pressing chamber and the machine body. The rotation of the movable retaining ring makes the pressing chamber easy to disassemble without jamming, making the disassembly of the pressing chamber more efficient and faster, and thus facilitating the cleaning of the pressing chamber.

[0022] Meanwhile, a heating component is installed on the pressing chamber to heat the pressing chamber. The heating component can achieve 360-degree circumferential heating of the pressing chamber, ensuring that the heat loss of the oil press is extremely low during continuous and efficient operation, significantly improving the heat transfer efficiency, improving the quality of oil pressing and the oil yield. At the same time, it also saves the installation process of the heat-conducting aluminum sleeve, simplifies the production process, and improves the overall flexibility and ease of use of the heating component. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 A schematic diagram of the retaining ring structure provided by this utility model;

[0025] Figure 2 This is a front view of the retaining ring after it has been engaged, as provided by this utility model.

[0026] Figure 3 This is a front view of the snap ring after it has been engaged, as provided by this utility model.

[0027] Figure 4 This is a schematic diagram of the structure of the oil press provided by this utility model;

[0028] Figure 5 This is a schematic diagram of the exploded structure of the heating component provided by this utility model;

[0029] Figure 6 A schematic diagram of the pressing chamber structure provided by this utility model.

[0030] in,

[0031] 1-Fixing retaining ring; 11-Arc groove; 12-Fixing plate; 13-Center hole; 14-Rotating groove; 15-Insertion groove;

[0032] 2-Card block; 21-Insertion block; 22-Matching groove;

[0033] 3-Modible retaining ring; 31-Receiving groove; 32-Wrench;

[0034] 4-Body;

[0035] 5-Pressing chamber; 51-Protrusion; 52-Oil collection trough; 53-Oil unloading trough;

[0036] 6-Press bar;

[0037] 7- Flip-top lid;

[0038] 8-Heating component; 81-Heating body; 82-Heat-conducting core; 83-Heating plate; 84-Cover plate; 85-Screw; 86-Spring; 87-Slide groove; 88-First engagement cavity; 89-Limiting plate. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] This utility model embodiment discloses a detachable structure of the pressing chamber of an oil press, including a machine body 4 and a pressing chamber 5. The inner cavity of the pressing chamber 5 is coaxially rotatably connected to a pressing rod 6, and also includes a retaining ring.

[0041] The retaining ring includes a fixed retaining ring 1, a movable retaining ring 3, and a retaining block 2; the fixed retaining ring 1 is fixed on one side wall of the machine body 4, and a central hole 13 for accommodating the pressing rod 6 is opened in the middle of the fixed retaining ring 1, and a locking groove is opened on its outer wall; the movable retaining ring 3 has a receiving cavity in the middle to be fitted on the outer periphery of the pressing chamber 5, and the movable retaining ring 3 is opposite to the fixed retaining ring 1 and arranged at intervals.

[0042] The movable retaining ring 3 has multiple spaced receiving grooves 31 on the inner wall of the receiving cavity. A protrusion 51 adapted to the receiving groove 31 is fixed circumferentially on one end face of the pressing chamber 5. The protrusion 51 can pass through the receiving groove 31 and enter the gap between the movable retaining ring 3 and the fixed retaining ring 1. The retaining block 2 is fixed on one side wall of the movable retaining ring 3 and can be engaged in the engaging groove as the movable retaining ring 3 rotates to restrict the axial movement of the pressing chamber 5.

[0043] In this embodiment, the fixed retaining ring is integrally cast, and the movable retaining ring and the retaining block are integrally cast. For example... Figure 1 , 4 As shown in Figure 6, during use, the fixed retaining ring is fixed to the outer wall of the machine body, and the movable retaining ring is fitted onto the pressing chamber. When installing the pressing chamber, align the protrusion at the end of the pressing chamber with the receiving groove, and push the pressing chamber so that the protrusion passes through the receiving groove and enters the gap between the movable and fixed retaining rings. In this state, the retaining block and the engaging groove are aligned, and the relative positions of the fixed and movable retaining rings are as follows. Figure 2 As shown; then rotate the movable retaining ring so that the retaining block engages in the engaging groove. In this state, the relative position between the fixed retaining ring and the movable retaining ring is... Figure 2 The state shown becomes Figure 3 At this time, since the protrusion is located between the fixed retaining ring and the movable retaining ring, the pressing chamber will not move axially due to the blocking effect of the movable retaining ring; when it is necessary to disassemble the pressing chamber, the pressing chamber can be easily disassembled by simply rotating the movable retaining ring.

[0044] In this embodiment, the movable retaining ring is designed with a receiving groove. During installation, the protrusion is aligned with the receiving groove. After installation, the movable retaining ring is rotated, and the receiving groove and the protrusion are misaligned. At this time, the protrusion is located between the fixed retaining ring and the movable retaining ring. The movable retaining ring limits the pressing chamber (the receiving groove and the protrusion are misaligned) and the movable retaining ring is engaged and fixed with the fixed retaining ring. The protrusion will not detach from the fixed retaining ring through the receiving groove, thus completing the installation of the pressing chamber.

[0045] To further optimize the above technical solution and ensure the secure engagement between the fixed retaining ring and the movable retaining ring, the engagement groove includes a rotating groove 14 and an insertion groove 15, which are interconnected to form an L-shaped engagement groove; the retaining block 2 is arc-shaped, and the outer arc surface of the retaining block 2 is on the same plane as the outer wall of the movable retaining ring 3, and the top of its inner arc surface is fixed with an insert block 21 that is compatible with the insertion groove 15.

[0046] like Figure 1 As shown, the rotating groove 14 and the insertion groove 15 form an interconnected L-shaped engaging groove. The insertion block 21 is located at the top of the inner arc surface of the locking block 2. The bottom surface of the insertion block 21 forms a mating groove 22 between the inner arc surface of the locking block 2 and the side wall of the movable retaining ring 3. When the protrusion 51 enters the gap between the movable retaining ring 3 and the fixed retaining ring 1, the insertion block 21 in this state enters the insertion groove 15. The movable retaining ring 3 is pushed a certain distance along the direction of the fixed retaining ring so that the insertion block 21 and the rotating groove 14 are on the same plane. The movable retaining ring 3 is rotated, and the insertion block 21 rotates along the rotating groove 14. At this time, the groove wall of the rotating groove 14 enters the mating groove 22, and the insertion block 21 enters the rotating groove 14. The engaging and fixing between the movable retaining ring 3 and the fixed retaining ring 1 is achieved through this engagement method.

[0047] To further optimize the above technical solution and facilitate the rotation of the movable retaining ring, a wrench 32 is fixed to one end of the movable retaining ring 3.

[0048] To further optimize the above technical solution and ensure effective connection between the fixing ring and the machine body, a fixing plate 12 is fixed to the end of the fixing ring 1. The fixing plate 12 has multiple bolt holes that can be bolted to the machine body 4.

[0049] To further optimize the above technical solution and ensure effective contact between the end face of the pressing chamber and one side wall of the retaining ring, thus guaranteeing the sealing performance between them, multiple arc-shaped grooves 11 are provided on the circumference of the retaining ring 1 relative to the central hole 13. Since the retaining ring is integrally cast, the arc-shaped grooves can prevent protruding particles from the surface of the retaining ring that abuts against the pressing chamber during the casting process.

[0050] To further optimize the above technical solution, an oil discharge groove 53 is provided on the outer wall of the pressing chamber 5 near the machine body 4, and an oil collection groove 52 is provided on the outer wall of the chamber away from the machine body 4.

[0051] like Figure 6 As shown, the oil collection tank can collect the pressed oil. In actual use, there may be excess oil in the oil collection tank, or the oil outlet on the oil collection tank may be blocked. This will cause the oil to flow into the machine body and affect the operation of the oil press. By adding an oil discharge tank near the machine body in the pressing chamber, excess oil can be discharged from the oil discharge tank to prevent pollution or damage to the machine body, improve the service life of the oil press and reduce its maintenance costs.

[0052] To further optimize the above technical solution, a flip cover 7 is also included. One end of the flip cover 7 is hinged to an outer side wall of the machine body 4, and the pressing chamber 5 is located below the flip cover 7. A feed hopper is fixed to the top of the flip cover 7 and communicates with the inner cavity of the pressing chamber 5.

[0053] The pressing rod is located inside the pressing chamber. The pressing rod passes through the central shaft of the fixed retaining ring and the movable retaining ring and is connected to the drive motor inside the machine body. The material is fed into the pressing chamber through the feeding hopper, and the pressing rod is used to realize the oil pressing operation.

[0054] In some other specific embodiments, in order to improve the oil extraction efficiency and oil quality, a heating component 8 is also fixed on the outer wall of the pressing chamber 5. The heating component 8 includes a heating body 81, a heat-conducting core 82 and a heating plate 83.

[0055] The bottom wall of the heating body 81 is provided with a sliding groove 87 that runs through both end faces of the body, and the top wall of the body is provided with an assembly groove; the heat-conducting core 82 is slidably connected in the sliding groove 87, and there is a heating cavity between the top wall of the heat-conducting core 82 and the inner wall of the bottom of the sliding groove 87; the heating element 83 is inserted into the assembly groove to provide heat to the heating cavity through the heating body 81, thereby heating the pressing chamber 5.

[0056] like Figure 4 and 5 As shown, the heating element is the heat source, and the heat-conducting core can conduct heat. The heating element transfers heat to the heating body, and the heating body and the heat-conducting core can transfer heat to the heating cavity. The heating assembly is fitted onto the pressing chamber through the heating cavity to heat it. The heating element and the heating body can be connected by a drawer-type structure. The heating element can be replaced and installed by pulling it out. The heat-conducting core and the heating body can also be disassembled. The detachable connection of the heating device makes it easy to install and disassemble, and more convenient to use.

[0057] To further optimize the above technical solution and ensure that the heat-conducting core effectively transfers heat, a limiting plate 89 is also included. One end of the limiting plate 89 is hinged to one side wall of the heating body 81, and the other end can abut against one side end face of the heat-conducting core 82 to limit its axial sliding relative to the slide groove 87.

[0058] In this embodiment, a first engaging cavity 88 is formed on the top surface of the heat-conducting core 82, and a second engaging cavity is formed on the inner wall of the bottom of the sliding groove 87. The first engaging cavity 88 and the second engaging cavity engage with each other to form a heating cavity. The heating cavity can be circular, square, or trapezoidal, but is not limited to these three shapes.

[0059] A heating cavity is formed by a heat-conducting core and a heating body. The shape of the heating cavity is consistent with the shape of the equipment to be heated, enabling 360° all-around heating of equipment of different shapes.

[0060] In some other specific embodiments, a cover plate 84 is also included, with the top surface of the heating body 81 open relative to the mounting groove, and the cover plate 84 is bolted to the top surface of the heating body 81 by a screw 85 to cover the heating element 83.

[0061] like Figure 5 As shown, the bottom surface of the heating element can be set to an open type, and it is bolted to the flip cover through the cover plate. When the heating element needs to be replaced, disconnect the connection between the flip cover and the cover plate and flip the flip cover at a certain angle to directly replace the heating element.

[0062] To further optimize the above technical solution and give the heating component a certain degree of shock absorption, a spring 86 is also included. A screw 85 vertically penetrates the cover plate 84 and is slidably connected to it. The spring 86 is sleeved on the screw 85, and its two ends abut against the two opposite panels of the cover plate 84 and the flip cover 7, respectively. During use, the pressing chamber will vibrate. A certain gap can be left between the nut end of the screw and the cover plate. The screw is fastened to the flip cover by rivets. During vibration, the screw slides up and down along the cover plate to offset the vibration energy. Combined with the spring, this enables the heating device to have a shock absorption effect.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0064] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

[0065] Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detachable structure of an oil press barrel, comprising a machine body (4) and an oil press barrel (5), the inner cavity of the oil press barrel (5) is coaxially connected with a press rod (6), characterized in that, Also include the snap ring; The snap ring includes a fixed snap ring (1), a movable snap ring (3) and a clamping block (2); the fixed snap ring (1) is fixed on one side wall of the machine body (4), a central hole (13) for accommodating the pressing rod (6) is formed in the middle of the fixed snap ring (1), and a clamping groove is formed in the outer wall of the fixed snap ring (1); the middle of the movable snap ring (3) has an accommodating cavity to be sleeved on the outer periphery of the pressing chamber (5), and the movable snap ring (3) is arranged opposite to and spaced from the fixed snap ring (1); Wherein, a plurality of accommodating grooves (31) are arranged in the inner wall of the accommodating cavity of the movable snap ring (3), and a protrusion (51) matched with the accommodating groove (31) is fixed on the circumferential surface of one end surface of the pressing chamber (5), the protrusion (51) can penetrate through the accommodating groove (31) and enter the gap between the movable snap ring (3) and the fixed snap ring (1); the clamping block (2) is fixed on one side wall of the movable snap ring (3) and can be clamped in the clamping groove by rotating the movable snap ring (3) to limit the axial movement of the pressing chamber (5).

2. A dismountable structure of a press barrel of an oil expeller according to claim 1, characterized in that, The clamping groove includes a rotating groove (14) and an insertion groove (15), and the rotating groove (14) and the insertion groove (15) are communicated with each other to form an L-shaped clamping groove; the clamping block (2) is arc-shaped, the outer arc surface of the clamping block (2) is located in the same plane as the outer wall of the movable snap ring (3), and the top end of the inner arc surface of the clamping block (2) is fixed with an insertion block (21) matched with the insertion groove (15).

3. A dismountable structure of a press barrel of an oil expeller according to claim 2, characterized in that, One end of the movable snap ring (3) is fixed with a wrench (32) to realize the rotation of the movable snap ring (3).

4. A dismountable structure of a press cavity of an oil expeller as claimed in claim 1 wherein, The end of the fixed snap ring (1) is fixed with a fixed plate (12), a plurality of bolt holes matched with the machine body (4) are formed in the fixed plate (12); a plurality of arc-shaped grooves (11) are formed in the circumferential side of the fixed snap ring (1) opposite to the central hole (13).

5. A dismountable structure of a press cavity of an oil expeller as claimed in claim 1 wherein, The outer wall of one end of the pressing chamber (5) close to the machine body (4) is provided with a oil discharging groove (53), and the outer wall of the other end of the pressing chamber (5) away from the machine body (4) is provided with an oil collecting groove (52).

6. A dismountable structure of a press cavity of an oil expeller as claimed in claim 1 wherein, It also includes a flip cover (7), one end of the flip cover (7) is hinged to an outer side wall of the machine body (4), and the pressing chamber (5) is located below the flip cover (7); the top of the flip cover (7) is fixed with a feeding hopper which is communicated with the inner cavity of the pressing chamber (5).

7. A dismountable structure of a press barrel of an oil expeller according to claim 6, characterized in that, It also includes a heating assembly (8), the heating assembly (8) is fixed on the outer wall of one end of the pressing chamber (5) away from the machine body (4), and the heating assembly (8) includes a heating main body (81), a heat-conducting core (82) and a heating sheet (83); The bottom wall of the heating main body (81) is provided with a sliding groove (87) penetrating through the two end surfaces, and the top wall is provided with an assembly groove; the heat-conducting core (82) is slidingly connected in the sliding groove (87), and the top wall of the heat-conducting core (82) and the inner wall of the groove bottom of the sliding groove (87) have a heating cavity; the heating sheet (83) is inserted into the assembly groove to provide heat to the heating cavity through the heating main body (81) to heat the pressing chamber (5).

8. A dismountable structure of a press cavity of an oil expeller according to claim 7, characterized in that, Further comprising a limiting plate (89), one end of which is hinged on one side wall of the heating main body (81), and the other end of which is abutting against one side end face of the heat-conducting core (82) to limit the axial sliding of the heat-conducting core (82) relative to the sliding groove (87).

9. A dismountable structure of a press barrel of an oil expeller as claimed in claim 7, wherein Further comprising a cover plate (84), the heating main body (81) being open relative to the top face of the assembling groove, and the cover plate (84) being bolted on the top end face of the heating main body (81) by a screw rod (85) to cover the heating sheet (83).

10. A dismountable structure of a press barrel of an oil expeller according to claim 9, wherein Further comprising a spring (86), the screw rod (85) vertically penetrating through the cover plate (84) and being in sliding connection with the cover plate (84), and the spring (86) being sleeved on the screw rod (85), and two ends of the spring (86) being respectively abutting against two opposite panels of the cover plate (84) and the turnover cover (7).

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