A blanching device for bamboo shoots

Abstract

The utility model discloses a kind of blanching devices of bamboo shoots, the utility model relates to bamboo shoot processing technical field, scheme includes: a kind of blanching device of bamboo shoots, including: support;Blanching container, blanching container inside forms blanching container cavity, blanching container is installed on support;Inner layer screen frame, multiple first screen holes are set on the side wall of inner layer screen frame, inner layer screen frame is rotatably assembled in the inside of blanching container cavity;Outer layer screen frame, multiple second screen holes are set on the side wall of outer layer screen frame, outer layer screen frame is rotatably assembled in the outside of inner layer screen frame;Heating assembly, heating assembly is installed in the inner wall of blanching container cavity;Wherein, when blanching operation, outer layer screen frame is locked to first preset angle, outer layer screen frame and inner layer screen frame cooperate and form closed containing space, inner layer screen frame rotates and can drive bamboo shoot in closed containing space to exchange position;Can effectively break the accumulation state when bamboo shoot batch blanching, promote the penetration efficiency of boiling water to internal bamboo shoot.

Description

Technical Field

[0001] This utility model relates to the field of bamboo shoot processing technology, specifically to a blanching device for bamboo shoots. Background Technology

[0002] Bamboo shoots are widely favored for their crisp texture, refreshing flavor, and rich dietary fiber. They can be processed into various products such as dried bamboo shoots and pickled bamboo shoots. However, naturally grown bamboo shoots have significant drawbacks. They contain oxalic acid and tannins, which can cause a noticeable astringent and bitter taste. Some varieties also contain trace amounts of alkaloids, which can easily cause gastrointestinal discomfort if consumed directly. Blanching is a key pretreatment step designed to address these issues. Blanching effectively removes astringent and bitter components such as oxalic acid and tannins, softens the fibers, and makes the bamboo shoots sweet and crisp, laying a solid foundation for subsequent flavor absorption. At the same time, high temperatures can decompose trace amounts of alkaloids and other harmful substances, reducing the risk of consumption and perfectly meeting the needs of a healthy diet.

[0003] A bamboo shoot cooking pot disclosed in authorization announcement number (CN223473074U) includes a support base, a support frame, and a cooking pot. The support frame is fixedly connected to the outer side of the upper end of the support base, and the cooking pot is rotatably connected to the inner side of the upper end of the support base. In actual operation, bamboo shoots are first placed in the material basket, and then the heating wire is activated to heat the water in the heating layer. Once the water reaches the set temperature, the bamboo shoots in the material basket can be cooked.

[0004] The structure disclosed in this patent has defects in practical applications, specifically as follows: After bamboo shoots are placed in the material basket, they tend to form a tight, natural pile due to their shape and gravity. Especially during batch processing, the bamboo shoots are stacked layer by layer in the material basket, with the outer layer wrapping around the inner bamboo shoots. During the blanching process, the bamboo shoots piled up inside cannot fully contact the flowing boiling water, resulting in uneven heating. The outer bamboo shoots may become soft and mushy due to overheating, while the bamboo shoots in the center cannot effectively extract astringent substances such as oxalic acid and tannins because they do not come into contact with enough boiling water, thus causing insufficient blanching. Utility Model Content

[0005] The purpose of this utility model is to provide a blanching device for bamboo shoots, which addresses the problem in the prior art where bamboo shoots pile up during batch blanching, resulting in insufficient penetration of boiling water and quality differences due to incomplete blanching. This device effectively breaks up the pile-up state of bamboo shoots during batch blanching and improves the penetration efficiency of boiling water into the bamboo shoots.

[0006] This utility model is achieved through the following technical solution:

[0007] A blanching device for bamboo shoots includes: a support frame; a blanching container, the blanching container forming a blanching cavity, the blanching container being mounted on the support frame; an inner sieve frame, the inner sieve frame having multiple first sieve holes on its side wall, the inner sieve frame being rotatably mounted inside the blanching cavity; an outer sieve frame, the outer sieve frame having multiple second sieve holes on its side wall, the outer sieve frame being rotatably mounted outside the inner sieve frame; and a heating component, the heating component being mounted on the inner wall of the blanching cavity; wherein, during blanching, the outer sieve frame is locked to a first preset angle, the outer sieve frame and the inner sieve frame cooperate to form a closed receiving space, and the rotation of the inner sieve frame can cause the bamboo shoots in the closed receiving space to exchange positions; during non-blanching operations, the outer sieve frame is locked to a second preset angle, the outer sieve frame and the inner sieve frame being overlapped.

[0008] Furthermore, in this utility model, the above also includes: two ear plates, which are respectively installed on both sides of the blanching container; two flip shafts, which are distributed one-to-one with the two ear plates, one end of the flip shaft is rotatably connected to the ear plate, and the other end of the flip shaft is connected to the inner sieve frame.

[0009] Furthermore, in this utility model, an annular groove is provided at the preset position of the aforementioned flipping shaft; docking slots are provided on both sides of the outer screen frame, and the two docking slots are correspondingly fitted into the annular groove; wherein, the outer screen frame can rotate relative to the inner screen frame, and the outer screen frame can be locked to a preset rotation angle.

[0010] Furthermore, in this utility model, the above also includes: a locking disc, which is fixedly mounted on one of the rotating shafts, with a first locking hole at the top and a second locking hole at the bottom; and a locking assembly, which is installed on the outer side wall of the outer screen frame; wherein, during blanching operations, the outer screen frame rotates relative to the inner screen frame to a first preset angle, and the locking assembly locks into the first locking hole; during non-blanching operations, the outer screen frame rotates relative to the inner screen frame to a second preset angle, and the locking assembly locks into the second locking hole.

[0011] Furthermore, in this utility model, the locking component includes: a locking support, which has an installation groove facing the lock disc; a locking pin, which is movably inserted into the installation groove; and an elastic element, which is disposed in the installation groove, with one end of the elastic element connected to the inner wall of the installation groove and the other end of the elastic element connected to the locking pin.

[0012] Furthermore, in this invention, one of the aforementioned flip shafts passes through the ear plate, and a flip assembly is fitted at the end of the flip shaft that passes through the ear plate.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0014] 1. This utility model combines the outer and inner sieve frame mechanisms to achieve full-area heat control of bamboo shoots; it overcomes the drawbacks of uneven heating caused by the accumulation of bamboo shoots due to traditional fixed sieve frames, avoids the problem of insufficient blanching of inner bamboo shoots, and significantly improves the thoroughness of blanching of bamboo shoots and the consistency of finished product quality.

[0015] 2. This utility model combines a flipping component to drive the containing space, overcoming the drawbacks of relying on natural dripping for dehydration after blanching, which results in high residual moisture. The inner sieve frame drives the containing space to rotate, generating centrifugal force to accelerate the removal of moisture adhering to the surface of the bamboo shoots. This significantly improves dehydration efficiency, shortens the operation cycle, and keeps the residual moisture on the surface of the bamboo shoots low. This avoids contamination of the work area and equipment corrosion caused by water dripping during material handling, and reduces the risk of microbial growth caused by residual moisture, thereby extending the shelf life. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 A first-person perspective schematic diagram of a bamboo shoot blanching device;

[0018] Figure 2 A schematic diagram from a second perspective of a bamboo shoot blanching device;

[0019] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 A section view for locking components.

[0021] The attached diagram shows the markings and corresponding component names:

[0022] 1-Support, 2-Flipping shaft, 3-Blanching container, 4-Blanching chamber, 5-Outer sieve frame, 6-Inner sieve frame, 7-Ear plate, 8-Annular groove, 9-Matching bayonet, 10-Locking disc, 11-Drain valve, 12-Flipping handle, 13-Second sieve hole, 14-First sieve hole, 15-First locking hole, 16-Second locking hole, 17-Locking component, 18-Locking support, 19-Mounting channel, 20-Elastic element, 21-Locking pin. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0024] Example

[0025] Please refer to Figures 1 to 4 This utility model provides a blanching device for bamboo shoots, including a support 1, a blanching container 3, an inner sieve frame 6, an outer sieve frame 5, and a heating component. Connecting structures are respectively configured on both sides of the support 1. The blanching container 3 is fixedly assembled between the two connecting structures, and the internal structure of the blanching container 3 forms a spherical blanching cavity 4. The inner sieve frame 6 is rotatably connected to the inside of the blanching cavity 4, and its outline is a hemispherical structure adapted to the inner wall of the blanching cavity 4, allowing the inner sieve frame 6 to rotate circumferentially around a preset rotation point within the blanching cavity 4. The outer sieve frame 5 is rotatably assembled to the outside of the inner sieve frame 6, and its shape is adapted to the inner wall of the blanching cavity 4, allowing for angle adjustment relative to the inner sieve frame 6. The heating component is fixedly installed on the inner wall of the blanching cavity 4 for heating the liquid medium within the blanching cavity 4.

[0026] During the non-blanching stage, the operator first rotates the outer sieve frame 5 relative to the inner sieve frame 6 to the second preset angle and locks it. At this time, the outer sieve frame 5 and the inner sieve frame 6 are arranged in an overlapping state and are housed together in the blanching cavity 4. The operator can then neatly place the bamboo shoots to be blanched in the inner sieve frame 6. After the bamboo shoots are loaded, the outer sieve frame 5 is rotated to the first preset angle and locked, so that the outer sieve frame 5 and the inner sieve frame 6 form a complete spherical closed housing space, effectively preventing the bamboo shoots from detaching from the sieve frame structure during the blanching process. The heating element heats the liquid medium in the blanching chamber 4, blanching the bamboo shoots within the enclosed space through heat conduction. To ensure uniform heating of the bamboo shoots and eliminate the technical defect of insufficient blanching in certain areas, the inner sieve frame 6 can be driven to rotate during the blanching process, causing the enclosed space to rotate synchronously. This rotation causes the bamboo shoots within the space to change position and dynamically tumble, displacing the bamboo shoots originally piled on the inner side to the outer area. At this time, the outer sieve frame 5 acts as a load-bearing and limiting element. Once the blanching process meets the preset requirements, the locking mechanism of the outer sieve frame 5 is released, and the outer sieve frame 5 is rotated back to the second preset angle and overlaps with the inner sieve frame 6. The open structure allows for convenient handling of the blanched bamboo shoots, achieving a closed-loop operation of the entire blanching process.

[0027] In order to achieve uniform turning of bamboo shoots throughout the enclosed space and to achieve dynamic positional replacement of bamboo shoots in the inner and outer areas, after the outer sieve frame 5 and the inner sieve frame 6 form a complete spherical enclosed space, the inner sieve frame 6 can be driven to perform a continuous rotation action, so that the bamboo shoots in the space can complete multiple cycles of turning with the circumferential rotation. This eliminates the problem of insufficient turning caused by the accumulation of bamboo shoots, ensuring that all bamboo shoots can obtain a uniform turning effect, so as to ensure the consistency of the overall blanching quality of bamboo shoots.

[0028] Please refer to Figure 2It should be noted that the inner sieve frame 6 has multiple first sieve holes 14 on its side wall, and the outer sieve frame 5 has multiple second sieve holes 13 on its side wall. The sieve hole structure provides a structural basis for the flow of media and the interception of materials: during the blanching operation, the hot medium in the blanching chamber 4 can penetrate into the closed containment space through the first sieve holes 14 and the second sieve holes 13, ensuring that all parts of the bamboo shoot can be in full contact with the hot medium and ensuring the uniformity of the blanching process;

[0029] After blanching, the hot medium in the cavity can be quickly discharged by opening the drain valve 11 at the bottom of the blanching container 3. The bamboo shoots achieve efficient solid-liquid separation due to the interception effect of the containment space. To further optimize the dehydration effect, the inner screen frame 6 can be driven to rotate circumferentially within the enclosed containment space. The centrifugal force generated by the rotation accelerates the removal of water adhering to the surface of the bamboo shoots, significantly improving dehydration efficiency and effectively reducing the amount of residual water on the bamboo shoot surface. This avoids contamination of the work area and equipment corrosion caused by water dripping during the material handling process, reduces the risk of microbial growth in the bamboo shoots due to residual water, and extends the shelf life of the material.

[0030] Please refer to Figure 1 and Figure 2 In some embodiments of this application, two ear plates 7 are symmetrically fixed to the two side walls of the blanching container 3, forming a symmetrical support structure; two flip shafts 2 are configured in a one-to-one correspondence with the two ear plates 7, one end of the flip shaft 2 is rotatably connected to the corresponding side ear plate 7 through a rotating structure, and the other end is rigidly connected to the inner sieve frame 6, which is supported between the two ear plates 7 by the two flip shafts 2. The rotational cooperation between the flip shafts 2 and the ear plates 7 allows the inner sieve frame 6 to obtain rotational freedom relative to the blanching container 3, providing structural support for subsequent processes such as turning bamboo shoots and centrifugal dehydration within the containing space.

[0031] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the flipping shaft 2 has an annular groove 8 at a preset axial position, and the two side walls of the outer screen frame 5 are respectively provided with mating slots 9 that are adapted to the structure of the annular groove 8. When the outer screen frame 5 is fitted onto the outside of the inner screen frame 6, the mating slots 9 on both sides of the outer screen frame 5 form a coaxial locking fit with the annular groove 8 of the corresponding side flipping shaft 2. This forms an axial positioning constraint on the outer screen frame 5, effectively limiting the axial displacement of the outer screen frame 5 along the axis of the flipping shaft 2; at the same time, the outer screen frame 5 gains the degree of freedom of rotation around the flipping shaft 2, thereby realizing the function of adjusting the flipping angle relative to the inner screen frame 6. In addition, the outer screen frame 5 can be fixed at a preset rotation angle by a matching locking mechanism to meet the enclosure requirements of the accommodating space during blanching operations and the open layout requirements for picking up and putting down materials during non-blanching operations.

[0032] Please refer to Figure 3In some embodiments of this application, the locking disc 10 is coaxially fixedly mounted on one of the rotating shafts 2, and the top and bottom ends of the locking disc 10 are respectively provided with a first locking hole 15 and a second locking hole 16; the locking component 17 is fixedly mounted on the outer side wall of the outer screen frame 5, and the locking component 17 achieves synchronous circumferential displacement with the rotation of the outer screen frame 5.

[0033] When performing the blanching operation, the operator drives the outer sieve frame 5 to rotate relative to the inner sieve frame 6 to the first preset angle, so that the outer sieve frame 5 and the inner sieve frame 6 enclose and form an accommodating space. At this time, the locking component 17 rotates with the outer sieve frame 5 to the position corresponding to the first locking hole 15 to form a locking engagement, effectively restricting the circumferential movement of the outer sieve frame 5 and ensuring the structural stability of the enclosed accommodating space during the blanching process and the bamboo shoot turning operation.

[0034] When the material is not being blanched, the outer screen frame 5 is driven to rotate relative to the inner screen frame 6 to a second preset angle, so that the outer screen frame 5 and the inner screen frame 6 are arranged to overlap to accommodate the material handling operation. At this time, the locking component 17 rotates synchronously with the outer screen frame 5 to the position corresponding to the second locking hole 16 to form a locking engagement, thereby positioning the outer screen frame 5 in the overlapping position. This ensures the convenience of the material handling operation and avoids the safety hazards caused by the accidental rotation of the outer screen frame 5.

[0035] Please refer to Figure 4 Specifically, the locking assembly 17 includes a locking support 18, a locking pin 21, and an elastic element 20. The locking support 18 has a mounting groove 19 extending radially along the locking disc 10 on the side facing the locking disc 10. The locking pin 21 is slidably mounted along the axial direction of the mounting groove 19. The elastic element 20 is coaxially embedded inside the mounting groove 19. One end of the elastic element 20 is elastically connected to the inner sidewall of the mounting groove 19, and the other end is rigidly connected to the end of the locking pin 21, forming a self-resetting elastic locking structure.

[0036] Under the pre-tightening force of the elastic element 20 (spring), the end of the locking pin 21 away from the elastic element 20 always maintains a preset state of partially extending out of the mounting groove 19. When the outer screen frame 5 rotates to the first preset angle or the second preset angle, the locking pin 21 automatically forms a coaxial insertion engagement with the first locking hole 15 or the second locking hole 16 corresponding to the locking disc 10 under the drive of the elastic pre-tightening force, thereby locking the outer screen frame 5 at the target position. During the unlocking operation, the operator only needs to apply a pressing force to the locking pin 21 along the axial direction of the mounting groove 19, causing the elastic element 20 to undergo axial compression deformation, and the locking pin 21 retracts into the mounting groove 19 and disengages from the current first locking hole 15 or the second locking hole 16.

[0037] In some embodiments of this application, one of the flipping shafts 2 is disposed through the corresponding side ear plate 7, and a flipping assembly is coaxially mounted on the end of the shaft extending out of the ear plate 7. The flipping assembly forms a transmission connection with the flipping shaft 2 to provide power input for the rotation of the flipping shaft 2. By operating the flipping assembly, the flipping shaft 2 can be driven to rotate around its own axis, thereby driving the inner sieve frame 6, which is fixedly connected to the flipping shaft 2, to rotate circumferentially in sync. This can flexibly adapt to the bamboo shoot turning requirements in blanching operations and the centrifugal dehydration requirements in dehydration operations, ensuring that the bamboo shoots are uniformly turned or efficiently dehydrated in a closed containment space.

[0038] Please refer to Figure 1 and Figure 2 Specifically, the flipping assembly can adopt a flipping handle 12 structure. The operator can directly drive the flipping shaft 2 to rotate by manually turning the flipping handle 12, thereby controlling the rotation angle and speed of the inner screen frame 6. The structure is simple and the operation is highly controllable, adapting to the operational needs under different working conditions.

[0039] The flip handle 12 is equipped with an anti-misrotation locking structure, which is used to lock and position the flip handle 12 when it does not need to be rotated, so as to prevent accidental rotation of the flip shaft 2 caused by non-human operation. The locking structure can adopt a pin hole locking design, specifically including a locking through hole opened in the side wall of the flip handle 12 and a locking device fixed on the outside of the ear plate 7 corresponding to the position of the locking through hole.

[0040] For example, the flipping component can adopt a motor-driven structure. The motor is fixedly mounted on the outside of the corresponding side ear plate 7 via a motor mount, and the output end of the motor forms a coaxial transmission connection with the end of the flipping shaft 2. It can drive the flipping shaft 2 to rotate around its own axis, thereby driving the inner screen frame 6 to rotate circumferentially in sync. This allows the bamboo shoot flipping in the blanching operation and the centrifugal dehydration in the dehydration operation to be completed without manual operation, effectively improving the automation level and operating efficiency of the device.

[0041] In some embodiments of this application, the heating component may employ an electric heating tube structure. The electric heating tubes are arranged in a ring-shaped, uniform manner along the inner wall of the blanching cavity 4. The installation position of the electric heating tubes maintains a preset safe distance from the outer sieve frame 5, thus avoiding mechanical interference between the outer sieve frame 5 and the heating component during rotation. The surface of the electric heating tubes is coated with a non-stick, wear-resistant coating to prevent the bamboo shoots from directly contacting the heating tubes during turning, which could lead to scorching, and also reduces the difficulty of cleaning.

[0042] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A blanching device for bamboo shoots, characterized in that, include: Frame (1); A blanching container (3) has a blanching cavity (4) inside, and the blanching container (3) is mounted on the support (1). The inner sieve frame (6) has a plurality of first sieve holes (14) on its side wall and is rotatably assembled to the inside of the blanching cavity (4). The outer sieve frame (5) has multiple second sieve holes (13) on its side wall, and the outer sieve frame (5) is rotatably assembled to the outside of the inner sieve frame (6). A heating assembly is installed on the inner wall of the blanching chamber (4); During the blanching process, the outer sieve frame (5) is locked at a first preset angle. The outer sieve frame (5) and the inner sieve frame (6) work together to form a closed receiving space. The rotation of the inner sieve frame (6) can cause the bamboo shoots in the closed receiving space to change positions. During non-blanching operations, the outer sieve frame (5) is locked at a second preset angle, and the outer sieve frame (5) is set to overlap with the inner sieve frame (6).

2. The blanching device for bamboo shoots according to claim 1, characterized in that, Also includes: Two ear plates (7) are respectively installed on both sides of the blanching container (3); Two flipping shafts (2) are distributed one-to-one with two ear plates (7). One end of the flipping shaft (2) is rotatably connected to the ear plate (7), and the other end of the flipping shaft (2) is connected to the inner sieve frame (6).

3. The blanching device for bamboo shoots according to claim 2, characterized in that, The rotating shaft (2) has an annular groove (8) at a preset position; The outer sieve frame (5) has docking slots (9) on both sides, and the two docking slots (9) are respectively assembled into the annular slots (8); The outer screen frame (5) can rotate relative to the inner screen frame (6), and the outer screen frame (5) can be locked to a preset rotation angle.

4. The blanching device for bamboo shoots according to claim 3, characterized in that, Also includes: Locking disc (10), the locking disc (10) is fixedly mounted on one of the flipping shafts (2), the top of the locking disc (10) is provided with a first locking hole (15), and the bottom of the locking disc (10) is provided with a second locking hole (16); Locking component (17), said locking component (17) is installed on the outer side wall of the outer screen frame (5); During the blanching process, the outer sieve frame (5) rotates relative to the inner sieve frame (6) to a first preset angle, and the locking component (17) locks into the first locking hole (15). During non-blanching operations, the outer sieve frame (5) rotates relative to the inner sieve frame (6) to a second preset angle, and the locking component (17) locks into the second locking hole (16).

5. The blanching device for bamboo shoots according to claim 4, characterized in that, The locking component (17) includes: A locking support (18) is provided with an installation groove (19) facing the locking disc (10); A locking pin (21) is movably inserted into the mounting channel (19); An elastic element (20) is disposed in the mounting channel (19), one end of the elastic element (20) is connected to the inner wall of the mounting channel (19), and the other end of the elastic element (20) is connected to the locking pin (21).

6. The blanching device for bamboo shoots according to any one of claims 2 to 5, characterized in that, One of the flipping shafts (2) passes through the ear plate (7), and the end of the flipping shaft (2) through the ear plate (7) is fitted with a flipping assembly.

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