Charging basket locking structure and stirrer

Abstract

The utility model discloses a material barrel locking structure and a stirrer, and the material barrel locking structure comprises a mounting seat, a locking mechanism and a locking mechanism, the barrel body and the mounting base are arranged in the front-back direction, and a lock base is arranged on the side, right facing the mounting base, of the barrel body; the locking pin is rotationally arranged on the mounting seat along a rotating axis in the front-back direction, a connecting section is formed at one end, directly facing the barrel body, of the locking pin, a locking block is connected to the end part, far away from the mounting seat, of the connecting section, a locking hole is formed in the position, directly facing the locking block, of the locking seat, the locking block can penetrate through the locking hole, and the locking block is connected with the locking seat. The locking blocks can abut against the inner sides of the locking seats by rotating the locking pins, the number of the locking pins is not less than two, the barrel body dismounting and mounting efficiency is improved, the labor intensity is reduced, and the overall machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a stirring device, in particular to a barrel locking structure and a stirring machine. Background Art

[0002] In food production, mixers are often used, for example, to mix dough, stuffing or eggs, and each time the mixer is used, the barrel needs to be disassembled from the mixer. Currently, the barrel is usually fixed to the mixer by tightening bolts, which is time-consuming and labor-intensive. When multiple barrels of ingredients need to be mixed, the barrel needs to be disassembled and assembled repeatedly. Due to the low efficiency of disassembling the barrel, the overall processing efficiency is difficult to improve. Therefore, a locking structure that can facilitate the disassembly and assembly of the barrel is urgently needed. Utility Model Content

[0003] The utility model aims to provide a barrel locking structure and a mixer to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve the technical problem is:

[0005] The barrel locking structure includes: a mounting seat; a barrel body, which is arranged along the front-to-back direction with the mounting seat, and a locking seat is arranged on the side of the barrel body opposite to the mounting seat; a locking pin, which is rotatably arranged on the mounting seat along the rotation axis in the front-to-back direction, a connecting section is formed at the end of the locking pin opposite to the barrel body, and a locking block is connected to the end of the connecting section away from the mounting seat, a locking hole is arranged at the position of the locking seat opposite to the locking block, and the locking block can pass through the locking hole, and the locking pin can be rotated to make the locking block abut against the inner side of the locking seat, and the number of the locking pins is not less than two.

[0006] This technical solution has at least the following beneficial effects: the mounting seat is installed on an external structural member, such as the body of a mixer. When the barrel body needs to be disassembled, all locking pins can be operated. Specifically, when the barrel body needs to be installed, the barrel body is moved close to the mounting seat so that the locking block relatively passes through the locking hole and enters the locking seat, and then the locking pin is rotated. At this time, the locking pin is against the inner side of the locking seat, which can limit the locking pin from exiting the locking seat through the locking hole, thereby realizing rapid installation and positioning of the barrel body. When the barrel body needs to be removed, it is only necessary to reverse the locking pin so that the locking block is facing the locking hole. At this time, since the activity restriction of the locking pin is released, the barrel body can be moved away from the mounting seat, thereby realizing rapid disassembly of the barrel body. This improves the efficiency of disassembly and assembly of the barrel body, reduces labor intensity, and is conducive to improving overall processing efficiency.

[0007] As a further improvement of the above technical solution, a mounting hole is provided on the side of the mounting seat facing the barrel body, the locking pin is rotatably arranged in the mounting hole, the locking pin is connected to a handle, and the handle protrudes outward from the mounting seat. A mounting hole for accommodating the locking pin is provided in the mounting seat, and the locking pin is installed in the mounting hole, which can reduce the exposure of the rotating structure, and the overall structure is more compact. When the locking pin needs to be rotated, the handle can be used to drive the locking pin, which is labor-saving and convenient.

[0008] As a further improvement of the above technical solution, a positioning hole interconnected with the mounting hole is provided in the mounting seat, a spring is provided in the positioning hole, a positioning bead is provided between the spring and the locking pin, at least two positioning grooves are provided around the outer side of the locking pin, and the spring has a tendency to press the positioning bead into any one of the positioning grooves. When the locking pin is located at the beginning or end of the stroke, the spring pushes the positioning bead into one of the positioning grooves of the locking pin to achieve the position locking of the locking pin. When the barrel body needs to be operated again, force can be applied to the handle to forcefully rotate the locking pin so that the positioning bead exits the positioning groove, and the spring is compressed at this time. When the locking pin is rotated into place, another mounting groove on the outer side of the locking pin is just opposite to the positioning bead. At this time, the elastic force of the spring presses the positioning bead into the positioning groove again, so that the position of the locking pin can be conveniently locked, which is conducive to preventing the barrel body from rotating due to vibration when in use, and improving the stability during use.

[0009] As a further improvement of the above technical solution, a mounting groove is provided on the side of the mounting seat away from the barrel body, the mounting hole is formed at the bottom of the mounting groove, one end of the locking pin extends into the mounting groove and is connected with a retaining spring. The mounting hole is formed at the bottom of the mounting groove, and its inner diameter is smaller than the inner diameter of the mounting groove. When installing the locking pin, the locking pin is inserted from the end of the mounting hole away from the mounting groove, and the end of the locking pin is extended into the mounting groove, and then the retaining spring is clamped to the outer side of the end of the locking pin extending into the mounting groove to limit the axial position of the locking pin. At this time, the locking pin can be rotatably connected to the mounting seat.

[0010] As a further improvement of the above technical solution, a support plate is connected to the side of the mounting seat facing the barrel body, and the barrel body is located on the top side of the support plate. When the barrel body needs to be installed, the barrel body can be placed on the support plate, and the support plate can be used to assist in quickly positioning and supporting the barrel body, and then the locking pin can be rotated to lock the locking seat, thereby improving the convenience and stability of the barrel body installation.

[0011] As a further improvement of the above technical solution, the support plate is detachably connected to the mounting seat. When it is necessary to position barrels of different specifications and sizes, the support plate can be disassembled and replaced from the mounting seat, thereby improving the flexibility of use. When the support plate is damaged, it can also be replaced and maintained separately, thereby reducing maintenance costs.

[0012] As a further improvement of the above technical solution, two locking pins are arranged in the left and right directions. There are two locking pins for locking the barrel body to the mounting seat, and they are arranged in the left and right directions. When in use, the barrel body can be operated from both sides of the barrel body close to the mounting seat. The overall structural arrangement is more reasonable and the locking of the barrel body is more stable.

[0013] As a further improvement of the above technical solution, the utility model further comprises a vertical frame, the mounting seat is arranged on the vertical frame, and the mounting seat can be moved and positioned on the vertical frame. After the mounting seat is mounted on the vertical frame, the vertical frame can be mounted on the external structural member. When it is necessary to install barrels of different specifications, the mounting seat can be adjusted in the vertical direction on the vertical frame for installation height and positioning, thereby improving the versatility of overall use.

[0014] As a further improvement of the above technical solution, a slide plate is arranged in the vertical frame at intervals along the left-right direction, and two connecting ribs are arranged on the mounting seat at intervals along the left-right direction, and the two connecting ribs extend between the two slide plates respectively, and a pressure plate is arranged on the side of the two slide plates away from the mounting seat respectively, and a connecting piece is inserted into the two pressure plates respectively and connected to the connecting ribs facing them. The connecting piece locks the pressure plate and the connecting rib with each other, and the pressure plate can be pressed and fixed on the side of the slide plate away from the mounting seat, so as to realize the relative positioning of the mounting seat on the vertical frame. When the position of the mounting seat needs to be adjusted, the connecting piece can release the locking connection between the pressure plate and the mounting seat, and the mounting seat can be adjusted in the up and down direction according to the use needs. After completion, the connecting piece can be locked on the connecting rib again, which is convenient to operate and has stable connection.

[0015] A mixer comprises the above-mentioned barrel locking structure.

[0016] This technical solution has at least the following beneficial effects: since the mixer has the above-mentioned barrel locking structure, the efficiency of disassembly and assembly of the barrel body is improved, the labor intensity is reduced, and it is beneficial to improve the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0018] Figure 1 It is a side view of the barrel locking structure of the utility model.

[0019] Figure 2 yes Figure 1Schematic diagram of the AA cross-section structure.

[0020] Figure 3 yes Figure 2 An enlarged schematic diagram of part B.

[0021] Figure 4 It is an exploded view of the barrel locking structure of the utility model.

[0022] In the accompanying drawings: 100-mounting seat, 110-support plate, 120-connecting rib, 200-barrel body, 210-locking seat, 300-locking pin, 310-locking block, 320-handle, 330-spring, 340-positioning bead, 350-circlip, 400-vertical frame, 410-slide plate, 420-pressure plate, 430-connecting piece. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figure 1 and Figure 2The barrel locking structure includes a mounting seat 100, a barrel body 200 and a locking pin 300, wherein the barrel body 200 and the mounting seat 100 are arranged along the front-to-back direction. For example, the mounting seat 100 is arranged on the front side of the barrel body 200, and a locking seat 210 is arranged on the side of the barrel body 200 facing the mounting seat 100. The locking pin 300 is rotatably arranged on the mounting seat 100, and the rotation axis of the locking pin 300 extends along the front-to-back direction. A connecting section is formed at one end of the locking pin 300 facing the barrel body 200, and the connecting section is away from the mounting seat. A locking block 310 is connected to the end of 100, and a locking hole is provided at a position of the locking seat 210 opposite to the locking block 310, and the locking block 310 can pass through the locking hole. Rotating the locking pin 300 can make the locking block 310 abut against the inner side of the locking seat 210. In actual applications, the connecting section can be a columnar structure, and the connecting section also extends in the front-to-back direction, and the length extension direction of the locking block 310 is perpendicular to the connecting section, the shape of the locking hole is matched with the shape of the locking block 310, and the number of the locking pins 300 is not less than two.

[0028] As can be seen from the above, the mounting base 100 is mounted on a structural member of an external device, such as the body of a mixer. When the barrel 200 needs to be disassembled, all the locking pins 300 can be operated. Specifically, when the barrel 200 needs to be installed, the barrel 200 is brought close to the mounting base 100 so that the locking block 310 relatively passes through the lock hole and enters the lock base 210, and then the locking pin 300 is rotated. At this time, the locking pin 300 is against the inner side of the lock base 210, which can limit the locking pin 300. By withdrawing multiple locking holes from the locking seat 210, the barrel body 200 can be quickly installed and positioned. When the barrel body 200 needs to be removed, it is only necessary to reverse the locking pin 300 so that the locking block 310 is facing the locking hole. At this time, since the movement restriction of the locking pin 300 is released, the barrel body 200 can be moved away from the mounting seat 100, thereby realizing rapid disassembly of the barrel body 200. This improves the disassembly and assembly efficiency of the barrel body 200, reduces labor intensity, and is conducive to improving overall processing efficiency.

[0029] The locking pin 300 can be directly installed on the side of the mounting seat 100 facing the barrel body 200. At this time, after the locking pin 300 is installed and positioned on the barrel body 200, it has less contact with the locking seat 210, and it is difficult to maintain the stability of the barrel body 200 during use. In addition, the locking pin 300 structure is exposed, which is not conducive to long-term use and protection. Therefore, in this embodiment, the mounting seat 100 is provided with a mounting hole on the side facing the barrel body 200, and the locking pin 300 is rotatably set in the mounting hole. The locking pin 300 is connected to a handle 320, and the handle 320 protrudes outward from the mounting seat 100. In order to avoid the movement of the handle 320, of course, an avoidance port connected to the mounting hole is provided on the side of the mounting seat 100, and the handle 320 can move up and down in the avoidance port, thereby realizing the rotation of the locking pin 300. A mounting hole for accommodating the locking pin 300 is provided in the mounting seat 100, and the locking pin 300 is installed in the mounting hole, so that the exposure of the rotating structure can be reduced, and the overall structure is more compact. When the locking pin 300 needs to be rotated, the handle 320 is used to drive the locking pin 300, which is labor-saving and convenient. In practical applications, since the locking pin 300 is located in the mounting hole, when the locking block 310 relatively penetrates into the lock hole, the lock seat 210 can be pressed against the mounting seat 100, thereby assisting the positioning of the mounting seat 100 and improving the stability of the barrel body 200 when in use.

[0030] In the above embodiment, after the position adjustment of the locking pin 300 is completed, the position of the locking pin 300 can be maintained by relying on the friction between the locking pin 300 and the inner wall of the mounting hole. In order to better maintain the position of the locking pin 300, as Figure 3 and Figure 4 As shown, in this embodiment, a positioning hole interconnected with the mounting hole is provided in the mounting seat 100, a spring 330 is provided in the positioning hole, a positioning bead 340 is provided between the spring 330 and the locking pin 300, at least two positioning grooves are provided around the outer side of the locking pin 300, and the spring 330 has a tendency to press the positioning bead 340 into any one of the positioning grooves. When the locking pin 300 is at the beginning or end of the stroke, the spring 330 pushes the positioning bead 340 into a positioning groove of the locking pin 300, thereby locking the position of the locking pin 300. When the barrel body 200 needs to be operated again, force can be applied to the handle 320 to forcefully rotate the locking pin 300 so that the positioning bead 340 exits the positioning groove. At this time, the spring 330 is compressed. When the locking pin 300 is rotated into place, another mounting groove on the outside of the locking pin 300 is opposite to the positioning bead 340. At this time, the elastic force of the spring 330 presses the positioning bead 340 into the positioning groove again. In this way, the position of the locking pin 300 can be locked conveniently, which is beneficial to prevent the locking pin 300 from rotating due to vibration during use of the barrel body 200, thereby improving stability during use.

[0031] The locking pin 300 can be directly installed in the mounting seat 100 through the bearing, but since the spring 330 and the positioning bead 340 also need to be installed in the mounting seat 100, it is necessary to improve the convenience of installing the locking pin 300. In the present embodiment, the mounting seat 100 is provided with a mounting groove on the side away from the barrel body 200, and the mounting hole is formed at the bottom of the mounting groove. One end of the locking pin 300 extends into the mounting groove and is connected with a retaining spring 350. In actual application, an annular retaining groove is provided at the end of the locking pin 300 extending into the mounting groove, and the retaining spring 350 is inserted into the annular retaining groove, which can improve the stability of the retaining spring 350 installed on the locking pin 300. The mounting hole is formed at the bottom of the mounting groove, and its inner diameter is smaller than the inner diameter of the mounting groove. When installing the locking pin 300, the locking pin 300 is inserted into the mounting hole from the end away from the mounting groove, and the end of the locking pin 300 is extended into the mounting groove. Then the retaining ring 350 is clamped on the outer side of the end of the locking pin 300 extending into the mounting groove to limit the axial position of the locking pin 300. At this time, the locking pin 300 can be rotatably connected to the mounting seat 100.

[0032] In the above embodiment, the barrel body 200 can be supported at multiple points by means of the connecting sections on the multiple locking pins 300, and in order to reduce the stress on the locking pins 300 and further improve the convenience of installing and positioning the barrel body 200, in this embodiment, a support plate 110 is connected to the side of the mounting seat 100 facing the barrel body 200, and the barrel body 200 is located on the top side of the support plate 110. When the barrel body 200 needs to be installed, the barrel body 200 can be placed on the support plate 110, and the support plate 110 is used to assist in quickly positioning and supporting the barrel body 200, and then the locking pin 300 is rotated to lock the lock seat 210, thereby improving the convenience and stability of installing the barrel body 200.

[0033] In the above embodiment, the support plate 110 can be directly formed on the mounting seat 100, and is an integrally formed structure with the mounting seat 100. However, in actual use, the support plate 110 is subjected to a large force and is easily broken and separated on the mounting seat 100. Therefore, the support plate 110 can be designed as a detachable and replaceable structure. In this embodiment, the support plate 110 is detachably connected to the mounting seat 100. For example, the support plate 110 is fixed to the mounting seat 100 by a snap connection, or is fixed to the mounting seat 100 by driving a connecting member 430 such as a screw or a bolt. When it is necessary to position barrels 200 of different specifications and sizes, the support plate 110 can be disassembled and replaced from the mounting seat 100 to improve the flexibility of use. When the support plate 110 is damaged, the support plate 110 can also be replaced and maintained separately to reduce maintenance costs.

[0034] The number of the locking pins 300 can be two, three or four, for example, when the number of the locking pins 300 is three, the three locking pins 300 are arranged in a triangle between the barrel body 200 and the mounting seat 100, and when the number of the locking pins 300 is four, the four locking pins 300 are arranged in a rectangular shape between the barrel body 200 and the mounting seat 100. In this embodiment, two locking pins 300 are provided along the left and right directions. There are two locking pins 300 for locking the barrel body 200 to the mounting seat 100, and they are arranged along the left and right directions. When in use, the barrel body 200 can be operated from both sides of the barrel body 200 close to the mounting seat 100, and the overall structural arrangement is more reasonable, and the locking of the barrel body 200 is more stable.

[0035] In order to better adapt to barrel bodies 200 of different specifications and sizes, the utility model further includes a vertical frame 400, on which the mounting seat 100 is disposed, and the mounting seat 100 can be moved and positioned in the vertical direction on the vertical frame 400. After the mounting seat 100 is mounted on the vertical frame 400, the vertical frame 400 can be mounted on a peripheral structural member. When barrel bodies 200 of different specifications need to be installed, the mounting seat 100 can be adjusted in the vertical direction on the vertical frame 400 for mounting height and positioning, thereby improving the versatility of overall use.

[0036] The sliding connection between the mounting seat 100 and the vertical frame 400 can be that one of the slide rails or the slide grooves is provided on the mounting seat 100, and the other is provided on the vertical frame 400 accordingly. Positioning bolts are inserted into the mounting seat 100 and abut against the vertical frame 400. When the height of the mounting seat 100 needs to be adjusted, the positioning bolts are loosened. When the mounting seat 100 needs to be fixed, the positioning bolts are pressed against the vertical frame 400, thereby achieving relative fixation between the mounting seat 100 and the vertical frame 400. In this embodiment, slide plates 410 are provided in the vertical frame 400 at intervals along the left and right directions. The mounting seat 100 Two connecting ribs 120 are arranged at intervals along the left and right directions of the upper edge, and the two connecting ribs 120 are respectively extended between the two slide plates 410, and pressure plates 420 are respectively arranged on the side of the two slide plates 410 away from the mounting seat 100. Connectors 430 are respectively inserted into the two pressure plates 420 and connected to the connecting ribs 120 opposite thereto. The connecting members 430 are mainly used to connect and fix the pressure plates 420 and the connecting ribs 120 to each other, and can be bolts or one of bolts. In addition, a plurality of connecting members 430 can be arranged at intervals along the up and down directions to further improve the stability of the positioning of the mounting seat 100. The connecting piece 430 locks the pressing plate 420 and the connecting rib 120 with each other, and the pressing plate 420 can be pressed and fixed on the side of the slide plate 410 away from the mounting seat 100, so as to realize the relative positioning of the mounting seat 100 on the vertical frame 400. When the position of the mounting seat 100 needs to be adjusted, the connecting piece 430 can be loosened to release the locking connection between the pressing plate 420 and the mounting seat 100. At this time, the mounting seat 100 can be adjusted in the up and down directions according to the needs of use. After completion, the connecting piece 430 can be locked on the connecting rib 120 again. It is easy to operate and the connection is stable.

[0037] The mixer includes the above-mentioned barrel locking structure. The mixer itself has a casing, and the mounting base 100 can be installed and fixed on the casing. When the barrel locking structure has a vertical frame 400, the vertical frame 400 is installed on the casing. A motor is also provided in the casing, which is driven by the motor to connect a stirring paddle and drive the stirring paddle to rotate. After the barrel body 200 is loaded, the stirring paddle can be lowered into the barrel body 200 to stir the material in the barrel body 200.

[0038] In this mixer, since the mixer has the above-mentioned barrel locking structure, the efficiency of disassembling and assembling the barrel body 200 is improved, the labor intensity is reduced, and it is beneficial to improve the overall processing efficiency.

[0039] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Barrel locking structure, characterized by: include: Mounting seat (100); The barrel body (200) is arranged along the front-to-back direction with the mounting seat (100), and a locking seat (210) is arranged on a side of the barrel body (200) facing the mounting seat (100); A locking pin (300) is rotatably arranged on the mounting seat (100) along a rotation axis in the front-to-back direction, a connecting section is formed at one end of the locking pin (300) facing the barrel body (200), a locking block (310) is connected to the end of the connecting section away from the mounting seat (100), a locking hole is arranged at a position of the locking seat (210) facing the locking block (310), the locking block (310) can pass through the locking hole, and the locking pin (300) can be rotated so that the locking block (310) abuts against the inner side of the locking seat (210), and the number of the locking pins (300) is not less than two.

2. The barrel locking structure according to claim 1, characterized in that: A mounting hole is provided on a side of the mounting seat (100) facing the barrel body (200), and the locking pin (300) is rotatably disposed in the mounting hole. The locking pin (300) is connected to a handle (320), and the handle (320) protrudes outward from the mounting seat (100).

3. The barrel locking structure according to claim 2, characterized in that: A positioning hole is provided in the mounting seat (100) and is interconnected with the mounting hole. A spring (330) is provided in the positioning hole. A positioning bead (340) is provided between the spring (330) and the locking pin (300). At least two positioning grooves are provided around the outer side of the locking pin (300). The spring (330) has a tendency to press the positioning bead (340) into any one of the positioning grooves.

4. The barrel locking structure according to claim 2, characterized in that: A mounting groove is provided on a side of the mounting seat (100) away from the barrel body (200), the mounting hole is formed at the bottom of the mounting groove, and one end of the locking pin (300) extends into the mounting groove and is connected to a retaining spring (350).

5. The barrel locking structure according to claim 1, characterized in that: A support plate (110) is connected to a side of the mounting seat (100) facing the barrel body (200), and the barrel body (200) is located on the top side of the support plate (110).

6. The barrel locking structure according to claim 5, characterized in that: The support plate (110) is detachably connected to the mounting seat (100).

7. The barrel locking structure according to claim 1, characterized in that: Two locking pins (300) are arranged along the left and right directions.

8. The barrel locking structure according to claim 1, characterized in that: It also comprises a vertical frame (400), the mounting seat (100) is arranged on the vertical frame (400), and the mounting seat (100) can move and be positioned on the vertical frame (400).

9. The barrel locking structure according to claim 8, characterized in that: Slide plates (410) are arranged in the vertical frame (400) at intervals along the left-right direction, and two connecting ribs (120) are arranged on the mounting seat (100) at intervals along the left-right direction. The two connecting ribs (120) extend between the two slide plates (410) respectively, and a pressing plate (420) is arranged on one side of the two slide plates (410) away from the mounting seat (100). Connecting pieces (430) are respectively inserted into the two pressing plates (420) and connected to the connecting ribs (120) facing the two pressing plates.

10. A mixer, characterized in that: It comprises the barrel locking structure as claimed in any one of claims 1 to 9.

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