Tea rolling machine for fructus forsythiae black tea production

Abstract

The utility model relates to a tea leaf rolling machine for fructus forsythiae black tea production, which comprises a machine base, a rolling disc and a rolling cylinder, the top of the rolling disc is open, the bottom of the rolling disc is closed, ribs are arranged on the inner bottom of the rolling disc, the outer bottom of the rolling disc is abutted against the machine base, inverted L-shaped positioning plates are fixedly arranged on the left outer side and the right outer side of the rolling disc, and fixing through holes are formed in the vertical parts of the positioning plates. A positioning groove is formed in the top of the machine base corresponding to the vertical part of the positioning plate, an electric push rod is arranged in the machine base on one side of the positioning groove, a fixing blind hole communicated with the positioning groove is formed in the machine base on the other side of the positioning groove, the telescopic end of the electric push rod faces the positioning groove and can stretch into the positioning groove, and the vertical part of the positioning plate is inserted into the corresponding positioning groove. The fixing through holes correspond to the fixing blind holes, and the telescopic ends of the electric push rods penetrate through the corresponding fixing through holes and are inserted into the corresponding fixing blind holes. The rolling disc and the rolling cylinder can be conveniently disassembled, assembled and separated, and the rolling device is more practical.

Description

Technical Field

[0001] This utility model belongs to the field of tea production technology, specifically relating to a tea rolling machine for producing Forsythia black tea. Background Technology

[0002] Forsythia black tea is a type of tea beverage made from a blend of forsythia and black tea. It is rich in vitamin C, flavonoids, and other components, and has health benefits such as clearing heat and detoxifying, reducing swelling and relieving pain, and lowering blood pressure.

[0003] Currently, the rolling process is essential in the production of Forsythia black tea, and the equipment used is a rolling machine. Existing conventional rolling machines typically consist of a rolling disc with ribs and a rolling cylinder mounted on the rolling disc, which is rotated via a crank-rocker mechanism. The rolling cylinder performs circular motion on the rolling disc to process the tea leaves. However, in actual use, the existing connection methods between the rolling disc and the machine base, as well as between the rolling cylinder and the rolling disc, are not convenient for easy disassembly and separation. This makes it difficult to clean, maintain, or replace the rolling disc and rolling cylinder when needed, resulting in a lack of flexibility and convenience in overall use, which needs improvement. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a tea kneading machine for the production of forsythia black tea, which can realize the convenient disassembly and separation of the kneading disc and the kneading cylinder, so as to solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tea rolling machine for producing Forsythia black tea, comprising a machine base, a rolling disc, and a rolling cylinder. The rolling disc has an open top and a closed bottom, with ribs on its inner bottom and its outer bottom abutting against the machine base. Inverted L-shaped positioning plates are fixed to the left and right outer sides of the rolling disc. A fixing through hole is provided on the vertical portion of the positioning plate. A positioning groove is provided on the top of the machine base corresponding to the vertical portion of the positioning plate. An electric push rod is built into the machine base on one side of the positioning groove, and a fixing blind hole communicating with the positioning groove is provided on the machine base on the other side. The telescopic end of the electric push rod faces the positioning groove and can extend into it. The vertical portion of the positioning plate is inserted into the corresponding positioning groove. The fixing through hole corresponds to the fixing blind hole. The telescopic end of the electric push rod passes through the corresponding fixing through hole and is inserted into the corresponding fixing blind hole. Three sets of rotating shafts are evenly distributed on the machine base around the kneading disc. The rotating shafts are vertical and rotatably mounted on the machine base. The bottom end of one of the rotating shafts passes through the machine base and is connected to a first motor fixedly mounted on the bottom of the machine base. A limiting plate is fixed on one side of the upper part of each rotating shaft. The top of the limiting plate has an internally threaded blind hole. The top and bottom of the kneading cylinder are open, and three sets of first crossbars are evenly distributed on the periphery of its outer wall. The tail end of the first crossbar is hinged to a second crossbar. The tail end of the second crossbar has a mounting through hole. A mounting plate is fixed on the side of the second crossbar away from the kneading cylinder. The mounting plate has an internally threaded through hole. The second crossbar corresponds to the rotating shaft one by one, and the second crossbar is fitted onto the corresponding rotating shaft through the mounting through hole. The mounting plate abuts against the corresponding limiting plate. The internally threaded through hole corresponds to the corresponding internally threaded blind hole and is screwed with the same wing bolt.

[0006] Preferably, the vertical portion of the positioning plate is adapted to the corresponding positioning groove, and the telescopic end of the electric push rod is adapted to the corresponding fixed through hole and fixed blind hole.

[0007] Preferably, the mounting through hole is adapted to the corresponding rotating shaft.

[0008] Preferably, a U-shaped bracket is fixedly connected to the upper part of the outer wall of the kneading cylinder. The opening of the bracket faces the kneading cylinder, and a lead screw is rotatably connected between its top and bottom parts. A turntable is fixedly connected to the top of the lead screw through the top of the bracket. A nut is threaded onto the lead screw. The side of the nut near the bracket is slidably connected to the vertical part of the bracket, and the other side is fixedly connected to an inverted L-shaped support rod. A pressure cap is fixedly connected to the bottom end of the support rod. The pressure cap is adapted to the kneading cylinder and can extend into the kneading cylinder.

[0009] Preferably, the base is provided with vertical support legs at each of the four corners of its bottom.

[0010] Preferably, a first hydraulic cylinder is vertically fixed to the lower inner side of each outrigger. The piston rod of the first hydraulic cylinder faces downward and a caster is installed on its bottom end. When the piston rod of the first hydraulic cylinder retracts, the bottom end of the caster is higher than the bottom end of the outrigger.

[0011] Preferably, the upper part of the support leg is fixedly connected to the same support plate, and a second hydraulic cylinder is vertically fixedly mounted through the support plate. The piston rod of the second hydraulic cylinder faces upward and is fixedly connected to a sealing disc. A sealing column is coaxially fixed on the top of the sealing disc. A first discharge through hole adapted to the sealing column is opened in the center of the kneading disc. A second discharge through hole is opened on the machine base corresponding to the first discharge through hole. The sealing disc abuts against the bottom of the machine base. The sealing column is inserted into the first discharge through hole and the second discharge through hole, and the top surface of the sealing column is flush with the inner bottom of the kneading disc.

[0012] Preferably, a second motor is embedded in the bottom of the base on one side of the second discharge through hole. The output shaft of the second motor faces downward and is fixedly connected to an inclined chute. The chute can rotate to the bottom of the second discharge through hole.

[0013] The beneficial effects of this utility model are as follows: During the kneading process, simply feed the tea leaves into the kneading cylinder, then start the first motor to drive the corresponding rotating shaft to rotate. With the cooperation of the crank-rocker mechanism formed by the three sets of rotating shafts and the three sets of first and second crossbars, the entire kneading cylinder can rotate on the ribs of the kneading disc, thus achieving the kneading process of the tea leaves. When cleaning, maintenance, or replacement of the kneading cylinder is required, in a stopped and unloaded state, first unscrew the wing bolts for easy hand-tightening, then pull the second crossbar from the rotating shaft to disassemble the original kneading cylinder. Next, after obtaining a new kneading cylinder, first align the second crossbar with the corresponding rotating shaft through the mounting through hole, then install the second crossbar into place, and ensure the mounting plate abuts against the corresponding limit plate, aligning the internal thread through hole with the corresponding internal thread blind hole. Then tighten the wing bolts to complete the fixed installation of the new kneading cylinder, ensuring a stable installation that does not affect its rotational movement during use. When cleaning, maintenance, or replacement of the kneading disc is required, after removing the kneading cylinder as described above, operate the electric push rod to retract its telescopic end and reset it. This will release the vertical part of the positioning plate from its insertion and fixation. Then, pull out the positioning plate to remove the original kneading disc. Next, after taking the new kneading disc, place it against the machine base, ensuring that the vertical part of the positioning plate aligns with the corresponding positioning slot and is inserted into place. Then, operate the electric push rod to extend its telescopic end through the corresponding fixing through hole and insert it into the corresponding fixing blind hole. This will fix the positioning plate in place, completing the secure installation of the new kneading disc without affecting subsequent use. This allows for convenient disassembly and assembly of the kneading disc and kneading cylinder, enabling cleaning, maintenance, or replacement when needed, making the overall use more flexible, convenient, and practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the base of this utility model;

[0016] Figure 3 This is a schematic diagram of the main cross-sectional structure of the base of this utility model;

[0017] Figure 4 This is a top view of the base structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the main structure of the kneading disc of this utility model;

[0019] Figure 6 This is a top view of the kneading disc of this utility model;

[0020] Figure 7This is a schematic diagram of the main structure of the present invention when the kneading disc is connected to the machine base;

[0021] Figure 8 This is a schematic diagram of the main structure of the kneading cylinder of this utility model;

[0022] Figure 9 This is a top view of the kneading cylinder of this utility model;

[0023] Figure 10 This is a front view structural diagram of the second crossbar of this utility model when it is connected to the rotating shaft.

[0024] The diagram is labeled as follows: 1 is the machine base, 2 is the kneading disc, 3 is the kneading cylinder, 4 is the rib, 5 is the positioning plate, 6 is the fixing through hole, 7 is the positioning groove, 8 is the electric push rod, 9 is the fixing blind hole, 10 is the rotating shaft, 11 is the first motor, 12 is the limit plate, 13 is the internal thread blind hole, 14 is the first crossbar, 15 is the second crossbar, 16 is the mounting through hole, 17 is the mounting plate, 18 is the internal thread through hole, 19 is the wing bolt, 20 is the bracket, 21 is the lead screw, 22 is the turntable, 23 is the nut, 24 is the support rod, 25 is the pressure cap, 26 is the support leg, 27 is the first hydraulic cylinder, 28 is the caster, 29 is the support plate, 30 is the second hydraulic cylinder, 31 is the sealing disc, 32 is the sealing column, 33 is the first discharge through hole, 34 is the second discharge through hole, 35 is the second motor, and 36 is the chute. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] like Figures 1 to 10As shown, a tea rolling machine for producing Forsythia black tea includes a base 1, a rolling disc 2, and a rolling cylinder 3. The rolling disc 2 has an open top and a closed bottom, with ribs 4 on its inner bottom and its outer bottom abutting against the base 1. Inverted L-shaped positioning plates 5 are fixed to the left and right outer sides of the rolling disc 2. A fixing through hole 6 is provided on the vertical portion of the positioning plate 5. A positioning groove 7 is provided on the top of the base 1 corresponding to the vertical portion of the positioning plate 5. An electric push rod 8 is built into one side of the base 1 of the positioning groove 7, and a fixing blind hole 9 communicating with the positioning groove 7 is provided on the other side of the base 1. The telescopic end of the electric push rod 8 faces the positioning groove 7 and can extend into it. The vertical portion of the positioning plate 5 is inserted into the corresponding positioning groove 7, the fixing through hole 6 corresponds to the fixing blind hole 9, and the telescopic end of the electric push rod 8 passes through the corresponding fixing through hole 6 and is inserted into the corresponding fixing blind hole 9. Three sets of rotating shafts 10 are evenly distributed on the machine base 1 around the kneading disc 2. The rotating shafts 10 are vertical and rotatably mounted on the machine base 1. The bottom end of one of the rotating shafts 10 passes through the machine base 1 and is connected to the first motor 11 fixedly mounted on the bottom of the machine base 1. A limiting plate 12 is fixedly provided on one side of the upper part of each rotating shaft 10. The top of the limiting plate 12 is provided with an internally threaded blind hole 13. The top and bottom of the kneading cylinder 3 are both open, and three sets of first crossbars 14 are evenly distributed on the periphery of its outer wall. The tail end of the first crossbar 14 is hinged to a second crossbar 15. The tail end of the second crossbar 15 is provided with a mounting through hole 16. A mounting plate 17 is fixed on the side of the second crossbar 15 away from the kneading cylinder 3. The mounting plate 17 is provided with an internal thread through hole 18. The second crossbar 15 corresponds to the rotating shaft 10 one by one, and the second crossbar 15 is fitted onto the corresponding rotating shaft 10 through the mounting through hole 16. The mounting plate 17 abuts against the corresponding limiting plate 12. The internal thread through hole 18 corresponds to the corresponding internal thread blind hole 13 and is screwed with the same wing bolt 19.

[0027] During the kneading process, simply feed the tea leaves into the kneading cylinder 3, then start the first motor 11 to drive the corresponding rotating shaft 10 to rotate. With the cooperation of the crank-rocker mechanism formed by the three sets of rotating shafts 10 and the three sets of first crossbars 14 and second crossbars 15, the entire kneading cylinder 3 can rotate on the ribs 4 of the kneading disc 2, thus achieving the kneading process of the tea leaves. When cleaning, maintenance, or replacement of the kneading cylinder 3 is required, in a stopped and unloaded state, first unscrew the wing bolts 19 for easy hand-tightening, then pull out the second crossbar 15 from the rotating shaft 10 to disassemble the original kneading cylinder 3. Next, after taking the new kneading cylinder 3, first align the second crossbar 15 with the corresponding rotating shaft 10 through the mounting through hole 16 on its second crossbar 15 and install the second crossbar 15 into place. Then, make the mounting plate 17 abut against the corresponding limiting plate 12, align the internal thread through hole 18 with the corresponding internal thread blind hole 13, and then tighten the wing bolt 19 into place. This completes the fixed installation of the new kneading cylinder 3, ensuring a stable installation that does not affect its rotational movement during use. When it is necessary to clean, maintain, or replace the kneading disc 2, after removing the kneading cylinder 3 according to the aforementioned steps, run the electric push rod 8 to retract and reset its telescopic end. This will release the insertion and fixing of the vertical part of the positioning plate 5. Then, pull out the positioning plate 5 to remove the original kneading disc 2. Next, after taking the new kneading disc 2, place it abutting against the machine base 1, ensuring that the vertical part of the positioning plate 5 aligns with the corresponding positioning slot 7 and is inserted into place. Then, operate the electric push rod 8, extending its telescopic end through the corresponding fixing through hole 6 and inserting it into the corresponding fixing blind hole 9. This securely inserts and fixes the positioning plate 6, completing the fixed installation of the new kneading disc 2. The installation is stable and does not affect subsequent use. This allows for convenient assembly and disassembly of the kneading disc 2 and kneading cylinder 3, enabling cleaning, maintenance, or replacement of both when needed. Overall, the use is more flexible, convenient, and practical. The wing bolt 19 can be achieved using existing technology. It features convenient hand-tightening operation, facilitating quick assembly and disassembly of the kneading cylinder 3.

[0028] In this embodiment, the vertical part of the positioning plate 5 is adapted to the corresponding positioning groove 7, and the telescopic end of the electric push rod 8 is adapted to the corresponding fixing through hole 6 and fixing blind hole 9, so as to ensure that the positioning plate 5 can be smoothly inserted into the position and package the smooth insertion and fixing of the positioning plate 5, thereby cooperating to achieve the fixed installation of the kneading disc 2.

[0029] In this embodiment, the mounting through hole 16 is adapted to the corresponding rotating shaft 10 to ensure smooth connection and installation between the second crossbar 15 and the corresponding rotating shaft 10.

[0030] In this embodiment, a U-shaped bracket 20 is fixedly connected to the upper part of the outer wall of the kneading cylinder 3. The opening of the bracket 20 faces the kneading cylinder 3, and a lead screw 21 is rotatably connected between its top and bottom parts. The top end of the lead screw 21 passes through the top of the bracket 20 and is fixedly connected to a turntable 22. A nut 23 is threaded onto the lead screw 21. The nut 23 is slidably connected to the vertical part of the bracket 20 on one side near the bracket 20, and an inverted L-shaped support rod 24 is fixedly connected to the other side. A pressure cap 25 is fixedly connected to the bottom end of the support rod 24. The pressure cap 25 is adapted to the kneading cylinder 3 and can extend into the kneading cylinder 3. During use, when tea leaves are fed into the kneading cylinder 3, the turntable 22 can be rotated to drive the lead screw 21 to rotate. With the cooperation of the nut 23 threaded to the lead screw 21, the nut 23 drives the support rod 24 and the pressure cap 25 to move upward to a suitable height, thereby facilitating the feeding of materials. After the material is fed, the turntable 22 can be reversed, so that the nut 23 drives the support rod 24 and the pressure cap 25 to move down as a whole until the pressure cap 25 extends into the kneading cylinder 3 and presses against the tea leaves to compress the tea leaves, so as to better cooperate in the kneading process of the tea leaves.

[0031] In this embodiment, support legs 26 are vertically fixed at the four corners of the bottom of the base 1 to effectively support and fix the base 1.

[0032] In this embodiment, a first hydraulic cylinder 27 is vertically fixed to the lower inner side of each outrigger 26. The piston rod of the first hydraulic cylinder 27 faces downward, and a caster 28 is mounted on its bottom end. When the piston rod of the first hydraulic cylinder 27 retracts, the bottom end of the caster 28 is higher than the bottom end of the outrigger 26. When the entire machine needs to be moved, the first hydraulic cylinder 27 is operated, causing its piston rod to extend and drive the caster 28 downward until it is placed on the ground, lifting the outrigger 26 into the air. The cooperation of the four sets of casters 28 allows the entire machine to move flexibly, facilitating flexible transfer and position adjustment according to actual needs. After the movement and adjustment are in place, the first hydraulic cylinder 27 is operated again, causing its piston rod to retract and reset, driving the caster 28 upward and lifting it into the air, so that the outrigger 26 is placed back on the ground, thus fixing the entire machine back in place. This makes the use of the machine more flexible, convenient, and practical.

[0033] In this embodiment, the upper part of the support leg 26 is fixedly connected to the same support plate 29. A second hydraulic cylinder 30 is vertically fixedly mounted on the support plate 29. The piston rod of the second hydraulic cylinder 30 faces upward and is fixedly connected to a sealing disc 31. A sealing column 32 is coaxially fixedly mounted on the top of the sealing disc 31. A first discharge through hole 33 adapted to the sealing column 32 is opened in the center of the kneading disc 2. A second discharge through hole 34 is opened on the machine base 1 corresponding to the first discharge through hole 33. The sealing disc 31 abuts against the machine base 1. At the bottom of the machine base 1, the sealing column 32 is inserted into the first discharge through hole 33 and the second discharge through hole 34, with the top surface of the sealing column 32 flush with the inner bottom of the kneading disc 2. During kneading, the piston rod of the second hydraulic lever 30 is in an extended state, the sealing disc 31 abuts against the bottom of the machine base 1, and the sealing column 32 is inserted into the first discharge through hole 33 and the second discharge through hole 34, with the top surface of the sealing column 32 flush with the inner bottom of the kneading disc 2, thus not affecting the kneading process and preventing material leakage. After the kneading process is completed, the second hydraulic lever 30 can be operated to retract its piston rod, which will drive the sealing disc 31 and the sealing column 32 to move down to a suitable height below the machine base 1, making the first discharge through hole 33 and the second discharge through hole 34 unobstructed, so that the kneaded tea leaves can be discharged and unloaded through the cooperation of the first discharge through hole 33 and the second discharge through hole 34.

[0034] In this embodiment, a second motor 35 is embedded in the bottom of the base 1 on one side of the second discharge hole 34. The output shaft of the second motor 35 faces downward and is fixedly connected to an inclined chute 36. The chute 36 can rotate to the bottom of the second discharge hole 34. During the kneading process, the lower end of the chute 36 faces away from the second discharge hole 34. After kneading is completed and the sealing column 32 is moved into place, the second motor 35 can be run to rotate the chute 36 180 degrees, thus rotating the chute 36 to the bottom of the second discharge hole 34. This allows the kneaded tea leaves to be better guided out of the discharge through the chute 36, making it more practical.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tea rolling machine for producing forsythia tea, comprising a base, a rolling disc and a rolling cylinder, characterized in that, The top of the rubbing and twisting disc is open, the bottom is closed, and the inner bottom is provided with ribs, and the outer bottom abuts against the machine base, the left and right outer sides of the rubbing and twisting disc are each fixedly provided with an inverted L-shaped positioning plate, a fixed hole is formed in the vertical part of the positioning plate, a positioning groove is formed in the top of the corresponding machine base, an electric push rod is built in the machine base on one side of the positioning groove, a fixed blind hole is formed in the machine base on the other side of the positioning groove and communicates with the positioning groove, the telescopic end of the electric push rod faces the positioning groove and can extend into the positioning groove, the vertical part of the positioning plate is inserted into the corresponding positioning groove, the fixed hole corresponds to the fixed blind hole, the telescopic end of the electric push rod penetrates through the corresponding fixed hole and is inserted into the corresponding fixed blind hole, three groups of rotating shafts are uniformly distributed on the machine base around the rubbing and twisting disc, the rotating shafts are vertically and rotatably arranged on the machine base, the bottom end of one of the rotating shafts penetrates through the machine base and is in transmission connection with a first motor fixedly arranged on the bottom of the machine base, a limiting plate is fixedly arranged on one side of the upper part of the rotating shaft, an internally-threaded blind hole is formed in the top of the limiting plate, the top and bottom of the rubbing and twisting drum are both open, and three groups of first horizontal rods are uniformly distributed around the outer wall of the rubbing and twisting drum, a second horizontal rod is hingedly connected to the tail end of the first horizontal rod, an installation hole is formed in the tail end of the second horizontal rod, an installation plate is fixedly arranged on the side of the second horizontal rod away from the rubbing and twisting drum, an internally-threaded hole is formed in the installation plate, the second horizontal rod corresponds to the rotating shaft, the second horizontal rod is sleeved on the corresponding rotating shaft through the installation hole, the installation plate abuts against the corresponding limiting plate, and the internally-threaded hole corresponds to the corresponding internally-threaded blind hole and is screwed with the same butterfly bolt.

2. The tea rolling machine for producing forsythia and black tea according to claim 1, characterized in that, The vertical part of the positioning plate is matched with the corresponding positioning groove, and the telescopic end of the electric push rod is matched with the corresponding fixed hole and fixed blind hole.

3. The tea rolling machine for producing forsythia and black tea according to claim 1, characterized in that, The installation hole is matched with the corresponding rotating shaft.

4. The tea rolling machine for producing forsythia and black tea according to claim 1, characterized in that, The upper part of the outer wall of the rubbing and twisting drum is fixedly connected with a U-shaped support, the opening of the support faces the rubbing and twisting drum, a lead screw is rotatably connected between the top and bottom of the support, the top end of the lead screw penetrates through the top of the support and is fixedly connected with a rotating disc, a nut is threadedly sleeved on the lead screw, the side of the nut close to the support is slidably connected with the vertical part of the support, the other side of the nut is fixedly connected with an inverted L-shaped support rod, a gland is fixedly connected to the bottom end of the support rod, and the gland is matched with the rubbing and twisting drum and can extend into the rubbing and twisting drum.

5. The tea rolling machine for producing forsythia and black tea according to claim 1, characterized in that, Vertical support legs are fixedly arranged at the four corners of the bottom of the machine base.

6. The tea rolling machine for producing forsythia and black tea according to claim 5, characterized in that, First hydraulic cylinders are vertically fixedly arranged at the inner sides of the lower parts of the support legs. When the piston rod of the first hydraulic cylinder is retracted, the bottom end of the foot wheel is higher than the bottom end of the support leg.

7. The tea rolling machine for producing forsythia and black tea according to claim 6, characterized in that, The upper part of the support leg is fixedly connected with a same support plate, a second hydraulic cylinder is vertically and fixedly arranged on the support plate, the piston rod of the second hydraulic cylinder is upward and fixedly connected with a blocking disc, a blocking column is coaxially and fixedly arranged on the top of the blocking disc, a first discharging through hole matched with the blocking column is arranged in the center of the kneading disc, a second discharging through hole is arranged on the corresponding base, the blocking disc is abutted on the bottom of the base, the blocking column is inserted in the first discharging through hole and the second discharging through hole, and the top surface of the blocking column is flush with the inner bottom of the kneading disc.

8. The tea rolling machine for producing forsythia and black tea according to claim 7, characterized in that, A second motor is embedded on the bottom of the base on the side of the second discharging through hole, the output shaft of the second motor is downward and fixedly connected with an obliquely arranged chute, and the chute can be turned to below the second discharging through hole.

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