CN212632425U - Spice raw material high-pressure boiling pot - Google Patents

Abstract

The utility model relates to a technical field of spices production facility, to the lower problem of high pressure boil out jar at boil out stirring in-process stirring efficiency, provide a spices raw materials high pressure boil out jar, including the support that is fixed in ground, with the jar body of support fixed connection, the cover, rotate the first agitator of being connected with the cover, drive the first driving piece of first agitator, rotate the second agitator of being connected and drive the second driving piece of second agitator with jar body bottom, first agitator still is equipped with scrapes the wall ware, scrapes the inner wall looks butt of the wall ware and the jar body. The utility model discloses have the effect that is favorable to improving the stirring mixing efficiency of high pressure boil out jar.

Description

Spice raw material high-pressure boiling pot

Technical Field

The utility model belongs to the technical field of spices production facility's technique and specifically relates to a spices raw materials high pressure boil out jar is related to.

Background

The production process of the spice generally comprises the steps of mixing, mincing, stewing, cooling, enzymolysis, sieving, mixing, Maillard reaction and the like. The stewing is a processing link of carrying out thermal reaction on minced meat pulp or minced meat and other raw materials, and protein in the meat can be decomposed through the stewing link, so that delicate flavor substances such as free amino acid, nucleotide and the like are thoroughly released, and the flavor of the spice is further enhanced. Therefore, stewing is an essential important link in the production process of spices. Stewing is generally carried out in a high-temperature and high-pressure environment, and a high-pressure stewing pot is usually selected as a processing container in the prior art.

Current high pressure boil out jar is generally including a jar body, a cover, an agitator for stirring the raw materials, a drive assembly who is used for the agitator stirring of drive group and is used for supporting jar body's support, and drive assembly generally installs on the cover, and the intercommunication has the inlet pipe and is equipped with the observation window on the cover, and the agitator is installed in the cover below, and the agitator is connected with drive assembly, and jar body bottom intercommunication has the discharging pipe.

Meat thick liquids after rubbing and other raw and other materials get into the jar body through the inlet pipe, boil out the stirring and mix, the state of the mixture that forms after the thermal reaction is generally fluid form, after the reaction, the mixture discharges through the discharging pipe, simultaneously because the mixture principal ingredients is meat thick liquids, meat thick liquids have higher viscosity, the agitator of current boil out jar is when the stirring, laminar flow phenomenon appears around stirring vane easily to the fluid of high viscosity, because the influence of viscous force, the fluid of the place far away from the impeller is still static, consequently, form the stirring blind spot easily at the stirring in-process, make the mixture at the unable intensive mixing of stirring in-process, cause stirring efficiency not high, consequently, still there is the improvement space.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a decoct spices raw materials high pressure boil out jar that the in-process improves stirring efficiency.

The above object of the present invention is achieved by the following technical solutions:

a spice raw material high-pressure boiling pot comprises a support fixed on the ground, a pot body fixedly connected with the support, a pot cover, a first stirrer rotatably connected with the pot cover, a second stirrer rotatably connected with the bottom of the pot body, a first driving piece driving the first stirrer and a second driving piece driving the second stirrer, wherein the first stirrer comprises a first stirring shaft rotatably connected with the pot cover and arranged in the pot body and a first stirring component fixedly connected with the first stirring shaft, the second stirrer comprises a second stirring shaft rotatably connected with the bottom of the pot body and a plurality of second stirring blades fixedly connected with the second stirring shaft, the first stirring component comprises a beam rod fixedly connected with the first stirring shaft, vertical rods fixedly connected with the two ends of the beam rod, a plurality of first stirring blades fixedly connected with the vertical rods and a wall scraper arranged on the vertical rods, the wall scraping device is abutted against the inner wall of the tank body, and the first stirrer and the second stirrer rotate in opposite directions.

Through adopting above-mentioned technical scheme, when needs stir the boil out to the raw materials, start high pressure boil out jar for jar internal heating pressurization, and make first agitator and second agitator rotate with the internal raw materials of agitator tank. The rotation direction of the first stirrer is clockwise in the stirring process, and the rotation direction of the second stirrer is opposite to that of the first stirrer, so that the mixture is easy to form turbulent flow in the boiling and stirring processes, and the mixture in the tank body can be fully mixed together in a turbulent flow state; through the setting of two agitators, make the stirring power of high pressure decocting jar when the stirring bigger, make the mixed effect of mixture better, simultaneously, scrape the mixture near the inner wall of the jar body and strike off and make it move toward the stirring center, make the mixture apart from the position that stirring vane is far away also can be mixed by the stirring, make originally the mixture that exists in the stirring blind spot can be by intensive mixing, be favorable to improving the stirring efficiency of high pressure decocting jar.

The present invention may be further configured in a preferred embodiment as: the width direction of the first stirring blade and the length direction of the vertical rod form an included angle, and the included angle is more than 0 degree and less than 180 degrees.

By adopting the technical scheme, the mixture is easy to turn up and down during stirring, the turbulence is increased, the mixture in the tank body is stirred more fully, and the mixture in the tank body is mixed more uniformly.

The present invention may be further configured in a preferred embodiment as: the width direction of the first stirring blades on the two vertical rods is an included angle, and the included angle is 0 degrees <180 degrees.

By adopting the technical scheme, the shearing force between the mixed materials can be increased in the stirring process, the mixed materials can be turned up and down in the stirring process, the mixed materials can be stirred more fully, and the stirring material rate of the high-pressure decocting pot can be increased.

The present invention may be further configured in a preferred embodiment as: the first stirring blade and the second stirring blade are both provided with a plurality of small holes.

Through adopting above-mentioned technical scheme for the mixture is at the stirring in-process, and the speed that the mixture passes through the aperture is greater than the speed that the mixture passes through stirring vane border, is favorable to increasing the shearing force between the mixture, is favorable to turbulent further enhancement, is favorable to strengthening the turbulent motion of mixture, thereby is favorable to first agitator and second agitator to stir the material better, is favorable to the mixture in the jar body to mix more evenly.

The present invention may be further configured in a preferred embodiment as: the edge fixedly connected with U template that vertical pole was kept away from to first stirring vane, the edge fixedly connected with U template that the second (mixing) shaft was kept away from to second stirring vane.

Through adopting above-mentioned technical scheme for at first agitator and second agitator stirring in-process, the torrent of mixture is strengthened, makes the shearing action in the mixture in the stirring obviously improve, is favorable to the mixture to obtain more abundant mixture at the in-process of decocting.

The present invention may be further configured in a preferred embodiment as: the wall scraping device comprises a rotating shaft and a scraping plate, wherein the rotating shaft is connected with the vertical rod in a rotating mode, the scraping plate is fixedly connected with the rotating shaft, and an elastic part for driving the scraping plate to abut against the inner wall of the tank body is arranged on the rotating shaft.

Through adopting above-mentioned technical scheme, be favorable to scraping and making it can get into the stirring region and be stirred fully to the mixture that is difficult to be stirred fully because of keeping away from stirring vane at the stirring in-process, be favorable to reducing the mixture layering that leads to because of the laminar flow forms the stirring blind spot and leads to the inhomogeneous condition of mixture mixing, be favorable to improving the stirring efficiency of agitator better to be favorable to making the mixture obtain more abundant stirring.

The present invention may be further configured in a preferred embodiment as: when the elastic piece is in an initial state, an included angle is formed between the scraper and the vertical rod, and 135 degrees <160 degrees.

Through adopting above-mentioned technical scheme for can make the mixture after scraping when scraping the wall subassembly and scraping the mixture that is close to jar internal wall toward first (mixing) shaft center direction motion, make originally keep away from the mixture in stirring region and obtain more abundant stirring, be favorable to making the mixture in the high pressure decocting jar mix more evenly.

The present invention may be further configured in a preferred embodiment as: one side of the scraper abutting against the inner wall of the tank body is provided with an inclined surface.

Through adopting above-mentioned technical scheme, be favorable to scraping the mixture near the wall ware and strike off near the internal wall of jar better to be favorable to reducing and leading to the near condition that the mixture is difficult to the misce bene of internal wall of jar because of keeping away from the stirring center.

The present invention may be further configured in a preferred embodiment as: reinforcing ribs are fixed at the joint of the beam rod and the vertical rod and the joint of the beam rod and the first stirring shaft.

By adopting the technical scheme, the strength and rigidity of the whole first stirring assembly are further enhanced, and the service life of the stirring assembly is favorably prolonged.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the first stirrer rotatably connected with the tank cover and the second stirrer rotatably connected with the bottom of the tank body rotate in different directions, so that the mixture in the tank body is easy to generate turbulent flow, the mixture is further mixed, and the problem of low stirring efficiency caused by laminar flow generation dead angle of the mixture due to single-direction stirring is solved;

2. the small holes are formed in the first stirring blade and the second stirring blade, so that the shearing force between the mixed materials is increased, the further enhancement of the turbulent flow is facilitated, the mixed materials are easy to turn up and down, the first stirrer and the second stirrer are facilitated to stir the materials better, and the mixed materials in the tank body are more uniformly mixed;

3. through set up on vertical pole and scrape the wall ware, be favorable to scraping the mixture that is difficult to be fully stirred because of keeping away from stirring vane and make it can get into the stirring area and be fully stirred at the stirring in-process.

Drawings

FIG. 1 is a schematic view of the overall structure of a high-pressure pot for decocting spice raw materials in the present invention;

FIG. 2 is a schematic view of the internal structure of a high-pressure pot for decocting spice raw materials in the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure, 1, a tank body; 10. a ground surface; 11. a support; 12. a discharge pipe; 121. an auxiliary valve; 2. a can lid; 21. an observation window; 22. a pressure gauge; 23. a feeding pipe; 231. a main valve; 3. a first driving member; 4. a second driving member; 5. a first stirrer; 51. a first stirring shaft; 52. reinforcing ribs; 53. a first stirring assembly; 530. a small hole; 531. a beam rod; 532. a vertical rod; 533. a U-shaped plate; 534. a first stirring blade; 535. a wall scraping assembly; 5350. a first groove; 5351. a fixing ring; 5352. a wall scraper; 5353. an elastic member; 5354. a second groove; 53521. a rotating shaft; 53522. a squeegee; 6. a first coupling; 7. a second agitator; 72. a second stirring blade; 73. a second stirring shaft; 8. a second coupling.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a spices raw materials high pressure boil out jar, including being fixed in the support 11 of ground 10 to and be fixed in the jar body 1 that is used for on the support 11 boiling stirring, jar body 1 open-top is equipped with logical closed open-ended cover 2 on jar body 1, is equipped with observation window 21, manometer 22 on the cover 2 and communicates there are a plurality of pan feeding pipes 23, is fixed with the main valve 231 that leads to closed pan feeding pipe 23 on the pan feeding pipe 23. Still rotate on the cover 2 and be connected with first agitator 5, when the cover 2 seals jar 1 opening of body, first agitator 5 is arranged in jar 1, still be equipped with the first driving piece 3 of drive first agitator 5 pivoted on the cover 2, in this embodiment, first driving piece 3 is first motor, the first shaft coupling 6 of output shaft fixedly connected with of first motor, the one end and the first agitator 5 fixed connection of the output shaft of first motor are kept away from to first shaft coupling 6, still be equipped with on the first agitator 5 and scrape wall subassembly 535, when the cover 2 seals jar 1 opening, scrape wall subassembly 535 and jar inner wall looks butt of body 1. The bottom of the tank body 1 is also rotatably connected with a second stirrer 7, a second driving member 4 for driving the second stirrer 7 to drive is arranged on the outer side of the bottom of the tank body 1, in this embodiment, the second driving member 4 is a second motor, an output shaft of the second motor is fixedly connected with a second coupling 8, and one end, far away from the output shaft of the second motor, of the second coupling 8 is fixedly connected with the second stirrer 7. The first stirrer 5 and the second stirrer 7 rotate in opposite directions.

Referring to fig. 1 and 2, the tank body 1 is cylindrical and hollow, the bottom of the tank body 1 is communicated with a discharge pipe 12, and an auxiliary valve 121 for opening and closing the discharge pipe 12 is fixed on the discharge pipe 12. First agitator 5 includes and keeps away from first motor output shaft's one end fixed connection's first (mixing) shaft 51 and the one end fixed connection's that first (mixing) shaft 5 kept away from first shaft coupling 6 first (mixing) subassembly 53 with first (mixing) shaft 6, first (mixing) subassembly 53 is including being rectangular platelike crossbeam pole 531 and respectively with crossbeam pole 531 both ends fixed connection be rectangular platelike vertical pole 532, the one end fixed connection that first shaft coupling 6 was kept away from to crossbeam pole 531 and first (mixing) shaft 51, crossbeam pole 531 is located crossbeam pole 531 along length direction's intermediate position with the hookup location of first (mixing) shaft 51, the one end that vertical pole 532 is close to the inner wall of jar body 1 is provided with scrapes wall subassembly 535. One side of the vertical rod 532 far away from the inner wall of the tank body 1 is fixed with a plurality of first stirring blades 534, each first stirring blade 53 is in a rectangular plate shape, each first stirring blade 534 is uniformly provided with a plurality of small holes 530, in the embodiment, the number of the first stirring blades 534 of each vertical rod 532 is three, the length direction of the first stirring blades 534 is consistent with the length direction of the cross beam rod 531, the smaller included angle formed by the width direction of the first stirring blades 534 and the length direction of the vertical rods 532 is 45 degrees, and the first stirring blades 534 with the same height on the two vertical rods 532 are right opposite and perpendicular to each other.

Referring to fig. 2, the second stirrer 7 includes a second stirring shaft 73 fixedly connected to an end of the second coupler 8 away from the second motor output shaft, and a plurality of second stirring blades 72 fixedly connected to the second stirring shaft 73, each second stirring blade 72 is provided with a plurality of small holes 530, in this embodiment, the second stirring blades 72 are rectangular, there are three groups of second stirring blades 72 fixedly connected to the second stirring shaft 73, each group is composed of two second stirring blades 72, a smaller included angle formed by a width direction of the second stirring blade 72 and a length direction of the second stirring shaft 73 is 45 °, and the second stirring blades 72 of the same height are perpendicular to each other.

Referring to fig. 2, the edge of the first stirring blade 534 far away from the vertical rod 532 and the edge of the second stirring blade 72 far away from the second stirring shaft 73 are both fixedly connected with the U-shaped plate 533, and the connection position of the first stirring blade 534 and the U-shaped plate 533 and the connection position of the second stirring blade 72 and the U-shaped plate 533 are both located at the middle position of one side of the U-shaped plate 533 far away from the opening direction along the width direction.

Referring to fig. 2 and 3, in the present embodiment, the wall scraping assemblies 535 are arranged in two groups corresponding to the vertical rod 532, each wall scraping assembly 535 includes a fixing ring 5351 fixed on one side of the vertical rod 532 close to the inner wall of the tank 1 and a wall scraper 5352 rotatably connected to the inner wall of the fixing ring 5351, two fixing rings 5351 are provided, and the two fixing rings 5351 are respectively located at two ends of the vertical rod 532. The wall scraper 5352 includes a rotating shaft 53521 rotatably connected to the fixing ring 5351 at two ends, and a scraper 53522 integrally connected to the rotating shaft 53521, wherein an elastic member 5353 is wound around the rotating shaft 53521 for driving the scraper 53522 to always abut against the inner wall of the tank 1, in this embodiment, the number of the elastic members 5353 is two corresponding to the fixing ring 5351, and the elastic members 5353 are torsion springs. Two first grooves 5350 for the movement of the elastic members 5353 are recessed in the vertical rod 532 corresponding to the elastic members 5353, and two second grooves 5354 for the movement of the elastic members 5353 are recessed in the scraper 53522 corresponding to the elastic members 5353. One end of the elastic member 5353 is fixed to the top wall of the first groove 5350, and the other end of the elastic member 5353 is fixed to the bottom wall of the second groove 5354. When the elastic member 5353 is in the initial state, the large angle between the width direction of the scraper 53522 and the length direction of the beam 531 is 135 °, and the side of the scraper 53522 abutting against the inner wall of the can body 1 is provided as an inclined surface.

Referring to fig. 2, reinforcing ribs 52 are fixed at the joints of the cross beam 531 and the first stirring shaft 51 and the joints of the cross beam 531 and the vertical rods 532, in this embodiment, four reinforcing ribs 52 are provided, two of the reinforcing ribs 52 are respectively fixed at the joints of the cross beam 531 and the first stirring shaft 51 and are fixedly connected with the first stirring shaft 51 and the cross beam 531, and the other two reinforcing ribs 52 are respectively fixed at the joints of the two ends of the cross beam 531 and the two vertical rods 532 and are fixedly connected with the cross beam 531 and the vertical rods 532.

The implementation principle of the embodiment is as follows: when the meat is boiled, the main valve 231 is opened to communicate the feeding pipe 23 with the outside, the auxiliary valve 121 is closed to seal the discharging pipe 12, and the meat pulp and other raw materials are introduced into the tank body 1 through the feeding pipe 23. Close main valve 231 when the feeding is accomplished and make pan feeding pipe 23 close, start high pressure boil out jar, start first driving piece 3 and second driving piece 4 simultaneously for high pressure boil out jar begins to add the heat pressure, and first agitator 5 begins to stir the raw materials of jar internal 1 with second agitator 7.

First agitator 5 and second agitator 7 of high pressure boil out jar when beginning to stir, first agitator 5 stirs along clockwise, the direction of rotation of second agitator 7 is opposite with first agitator 5, thereby make the mixture of the internal 1 of jar form the turbulent flow easily, thereby be favorable to reducing because single stirring direction leads to the mixture of the internal 1 of jar to form the condition that the laminar flow exists the stirring dead angle easily, thereby be favorable to improving the stirring efficiency of high pressure boil out jar better, be favorable to the mixture of the internal 1 of jar to obtain more abundant mixture.

The smaller included angle formed by the width direction of the first stirring blade 534 and the length direction of the vertical rod 532 is 45 degrees, the first stirring blade 534 with the same height on the two vertical rods 532 is just opposite to and perpendicular to each other, the smaller included angle formed by the width direction of the second stirring blade 72 and the length direction of the second stirring shaft 73 is 45 degrees, and the second stirring blade 72 with the same height is perpendicular to each other, so that the mixture can be turned up and down in the stirring process, the turbulence is increased, the mixture in the tank body 1 has the effect of turning up and down in the stirring process, and the mixture is more fully mixed.

Through the arrangement of the plurality of small holes 530 formed in the first stirring blade 534 and the second stirring blade 72, in the stirring process of the first stirrer 5 and the second stirrer 7, the speed of the mixture passing through the small holes 530 on the first stirring blade 534 and the second stirring blade 72 is greater than the speed of the mixture passing through the edge of the first stirring blade 534 and the edge of the second stirring blade 72, so that the shearing force in the mixture is increased, the further enhancement of the turbulent flow is facilitated, the turbulence of the mixture is facilitated to be enhanced, the first stirrer 5 and the second stirrer 7 are facilitated to better stir the materials, and the mixture in the tank body 1 is facilitated to be more uniformly mixed.

Through keeping away from the edge of vertical pole 532 and the setting that the equal fixedly connected with U template 533 in edge that second (mixing) shaft 73 was kept away from to second stirring vane 72 at first stirring vane 534 for at first agitator 5 and second agitator 7 stirring in-process, the torrent of mixture is strengthened, makes the shearing force in the mixture in the stirring obviously increase, is favorable to the mixture to obtain more abundant mixture at the in-process of decocting.

Through being equipped with the setting of scraping wall subassembly 535 on vertical pole 532 for first agitator 5 can strike off and make it can get into the stirring region and be stirred fully because of keeping away from first stirring vane 534 mixture that is difficult to be stirred fully to stirring in-process, is favorable to reducing because of the appearance of the mixture layering formation stirring blind spot's that the laminar flow leads to the condition, is favorable to making the mixture obtain more abundant stirring.

Through the arrangement that the rotating shaft 53521 is externally wound with the elastic part 5353 which drives the scraper 53522 to be always abutted against the inner wall of the tank body 1, the scraper 53522 can be always abutted against the inner wall of the tank body 1, so that the scraping effect of the wall scraper 5352 can be improved, meanwhile, the scraper 53522 can rotate along with the first stirring shaft 51 to generate certain displacement, and the abrasion of the wall scraper 5352 on the inner wall of the tank body 1 in the operation process can be reduced.

Through when elastic component 5353 is in initial state, scraper 53522's width direction is 135 with the length direction of crossbeam pole 531's setting for scrape when wall subassembly 535 is scraping the mixture that is close to the inner wall of jar body 1, can make the mixture after scraping move toward the stirring center of first (mixing) shaft 51, make the mixture of keeping away from the stirring region originally obtain more abundant stirring, be favorable to better improvement stirring efficiency.

One side of the scraper 53522, which is abutted against the inner wall of the tank body 1, is provided with an inclined surface, so that the wall scraper 5352 can better scrape the mixture near the inner wall of the tank body 1, and the situation that the mixture near the inner wall of the tank body 1 is difficult to mix uniformly due to the fact that the mixture is far away from the stirring center can be reduced.

The arrangement that the reinforcing ribs 52 are fixed at the joint of the beam rod 531 and the vertical rod 532 and the joint of the beam rod 531 and the first stirring shaft 51 is favorable for better improving the strength and rigidity of the first stirring assembly 53 and prolonging the service life of the first stirring assembly 53.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a spices raw materials high pressure boil out jar, including support (11) that are fixed in ground (10), with support (11) fixed connection's jar body (1), cover (2), rotate first agitator (5) of being connected with cover (2), rotate second agitator (7) of being connected and drive first driving piece (3) of first agitator (5) and second driving piece (4) of drive second agitator (7) with the bottom of the jar body (1), its characterized in that: the first stirrer (5) comprises a first stirring shaft (51) which is rotationally connected with the tank cover (2) and is arranged in the tank body (1) and a first stirring component (53) which is fixedly connected with the first stirring shaft (51), the second stirrer (7) comprises a second stirring shaft (73) rotationally connected with the bottom of the tank body (1) and a plurality of second stirring blades (72) fixedly connected with the second stirring shaft (73), the first stirring assembly (53) comprises a cross beam rod (531) fixedly connected with the first stirring shaft (51), a vertical rod (532) fixedly connected with two ends of the cross beam rod (531), a plurality of first stirring blades (534) fixedly connected with the vertical rod (532) and a wall scraper (5352) arranged on the vertical rod (532), the wall scraper (5352) is abutted against the inner wall of the tank body (1), and the first stirrer (5) and the second stirrer (7) rotate in opposite directions.

2. The spice raw material high-pressure cooking pot according to claim 1, wherein: the width direction of the first stirring blade (534) and the length direction of the vertical rod (532) form an included angle, and the included angle is more than 0 degree and less than 180 degrees.

3. The spice raw material high-pressure cooking pot according to claim 2, wherein: the width directions of the first stirring blades (534) respectively positioned on the two vertical rods (532) form included angles, and the included angle is more than 0 degree and less than 180 degrees.

4. The spice raw material high-pressure cooking pot according to claim 3, wherein: a plurality of small holes (530) are distributed on the first stirring blade (534) and the second stirring blade (72).

5. The spice raw material high-pressure cooking pot according to claim 3, wherein: the edge of the first stirring blade (534) far away from the vertical rod (532) and the edge of the second stirring blade (72) far away from the second stirring shaft (73) are both fixedly connected with a U-shaped plate (533).

6. The spice raw material high-pressure cooking pot according to claim 5, wherein: the wall scraper (5352) comprises a rotating shaft (53521) rotatably connected with the vertical rod (532) and a scraper (53522) fixedly connected with the rotating shaft (53521), and an elastic part (5353) for driving the scraper (53522) to abut against the inner wall of the tank body (1) is arranged on the rotating shaft (53521).

7. The spice raw material high-pressure cooking pot according to claim 6, wherein: when the elastic member (5353) is in an initial state, the scraper (53522) and the vertical rod (532) form an included angle, and the included angle is 135 degrees <160 degrees.

8. The spice raw material high-pressure cooking pot according to claim 7, wherein: one side of the scraper (53522) which is abutted against the inner wall of the tank body (1) is provided with an inclined surface.

9. The spice raw material high-pressure cooking pot according to claim 1, wherein: reinforcing ribs (52) are fixed at the joint of the beam rod (531) and the vertical rod (532) and the joint of the beam rod (531) and the first stirring shaft (51).

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