Multi-layer fermented beancurd frame

Abstract

The utility model relates to the technical field of fermented bean curd, specifically relates to a multilayer fermented bean curd fermentation frame, including multigroup vertical interval arrangement's through -and -through tray, the inside lower side wall fixed limit strip for supporting embedded hole -like board of tray, the both sides of hole -like board are equipped with pull rope and is convenient for to extract, the rotating plate of rotating groove is fixed in the middle of tray one end, the rotating bearing installed in the groove is arranged on the outside of support column and forms the rotating pivot, need to operate when horizontally pulling tray, rotating bearing rotates along the support column and makes the layer to slide outward, through pull rope to take out hole -like board and its carried bean curd blank, complete detection or replacement operation in open space, after reset, hole -like board returns to limit strip fixed, multilayer tray keeps vertical ventilation state, the structure will traditional longitudinal operation change into horizontal operation, eliminate the need of interlayer reserved arm operating space, make interlayer distance need only satisfy the thickness of bean curd blank and bearing structure, significantly improve the stacking density and capacity in the same space.

Description

Technical Field

[0001] This utility model relates to the field of fermented bean curd technology, and in particular to a multi-layer fermented bean curd fermentation rack. Background Technology

[0002] ① Traditional fermented tofu production relies on open-air natural drying and fermentation. The frames are mostly fixed, multi-layered bamboo and wood frames. These structures require ample sunlight and a stable temperature and humidity environment. If rain, low temperatures, or high temperatures occur, the fermentation process is forced to stop, resulting in an uncontrollable fermentation cycle and large batch-to-batch quality fluctuations. Especially during the rainy season, the tofu is prone to bacterial growth and mold, and the lack of temperature and humidity control capabilities of the frames constitutes a core defect.

[0003] ② Existing improved technology moves the fermentation rack into a constant temperature fermentation room and installs air conditioners and fans on top of the multi-layered metal frame; the ambient temperature and humidity are precisely controlled by forced circulation of hot and cold air, thus overcoming the constraints of natural climate; for example, eight-layer units are formed by stacking steel shelves, with bamboo trays placed 20 cm apart on each layer, and the air conditioner continuously maintains a constant temperature of 25°C and 70% humidity, achieving uninterrupted fermentation throughout the year; the temperature control method directly overcomes the seasonal shutdown problem of natural fermentation.

[0004] ③ While constant-temperature fermentation racks solve the problem of environmental stability, they force workers to increase the distance between layers due to operational needs. If it is necessary to check the fermentation status of the lower layer or replace problematic tofu blocks, workers must reach their arms into the space between the layers. The narrow space can cause the tofu blocks to be squeezed or even the mycelium to fall off when the arms are reached in. Therefore, all constant-temperature racks must reserve an operating height of more than 30 centimeters. However, the thickness of the tofu blocks during actual fermentation is only 5 centimeters. The excessively reserved ineffective space causes the capacity of a single fermentation room to drop sharply. Furthermore, the total number of layers is forced to be reduced due to the height limitation of the racks. The space utilization rate and the ease of operation form an irreconcilable rigid contradiction, which becomes a bottleneck for high-density industrial production. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-layer fermented bean curd rack, which solves the technical contradiction that the space utilization rate drops sharply and the unit production capacity is insufficient due to the need to expand the distance between layers in constant temperature fermentation racks caused by manual operation.

[0006] To achieve the above objectives, this utility model provides a multi-layer fermented bean curd rack, comprising multiple sets of vertically spaced through-shaped trays. Limiting strips are fixedly installed on the lower inner sidewalls of each tray. Perforated plates are embedded in each tray, and pull ropes are threaded through both sides of each perforated plate. A rotating plate is fixedly installed in the middle of one end of each tray, and a rotating groove is formed in the middle of each rotating plate. Rotating bearings are fixedly installed in each rotating groove, and the rotating bearings are spaced apart and sleeved on the outside of the support columns.

[0007] Among them, when sorted from bottom to top, the four corners of the bottom end of the first group of pallets are respectively fixedly installed with support rods, and the bottom end of each support rod is respectively installed with threaded rods, and the bottom end of each threaded rod is respectively fixedly installed with pads.

[0008] Each of the pallets has a support column fixedly installed on both sides of its top end. The height of the support column is less than the spacing between the pallets. When each set of pallets is pressed, it adheres to the support column on the lower set of pallets to form support.

[0009] The support column has a steel ball threadedly installed at its top end, and the support column has a threadedly installed inside the top end of the assembly block. An assembly plate is fixedly installed at the bottom end of the assembly block.

[0010] The assembly plate has a plurality of assembly holes spaced apart, a base plate is attached to the bottom end of the assembly plate, an assembly screw passes through the assembly holes, and the end of the assembly screw is threaded to the base plate.

[0011] The top of the base plate is attached to the bottom of the pad, and several staggered reinforcing ribs are fixedly installed on the bottom of the base plate to form a reinforced structure of the base plate.

[0012] This utility model discloses a multi-layer fermented tofu rack, which consists of multiple independent support units formed by vertically spaced through-type trays. A limit strip is fixed to the lower inner side wall of each tray to constrain embedded perforated plates. Pull ropes are threaded through both sides of the perforated plates for quick retrieval and placement. A rotating plate fixed to the center of one end of each tray has a rotating groove, within which a rotating bearing is fixed and fitted onto the outside of a support column, forming a rotating pivot. When a specific layer of tofu needs to be processed, the tray for that layer is pulled horizontally, causing the rotating bearing to rotate along the outer wall of the support column, allowing the tray to slide laterally and expose the operating space. At this point, the tray can be lifted by pulling the ropes. The perforated plate can be pulled out completely, and the tofu block is removed from the stacked area. The operator can inspect or replace it in the open space, eliminating the traditional operation mode that requires reaching between layers. After the operation, the tray is pushed back, and the perforated plate re-enters the limiting strip. The multi-layer trays are reset to form a vertically connected ventilation channel. This structure transforms the longitudinal operation into a horizontal operation, so that the distance between adjacent trays can be compressed to the limit size that only needs to accommodate the thickness of the tofu block and the perforated plate. It eliminates the ineffective space reserved for operation in traditional technology and significantly increases the density of the number of layers and the unit output within the same factory height. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0015] Figure 2This is a schematic diagram of the support column in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the tray in an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the planar structure of the base plate in an embodiment of this utility model.

[0018] Figure 5 This is an embodiment of the present utility model. Figure 3 Enlarged diagram of point A in the diagram.

[0019] In the diagram: 101, support plate; 102, limiting strip; 103, perforated plate; 104, pull rope; 105, rotating plate; 106, rotating groove; 107, rotating bearing; 108, support column; 109, support rod; 110, threaded rod; 111, pad; 112, support column; 114, steel ball; 115, assembly block; 116, assembly plate; 117, assembly hole; 118, base plate; 119, assembly screw; 120, reinforcing rib. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1-5 .

[0022] This utility model provides a multi-layer fermented bean curd rack. The base plate 118 serves as the basic support. Several staggered reinforcing ribs 120 are welded and installed at the bottom of the base plate 118 to enhance the overall bending strength of the base plate 118. The top surface of the base plate 118 is provided with a detachable assembly plate 116 corresponding to the support point. The assembly plate 116 is locked to the base plate 118 through the assembly block 115 at the bottom and the assembly screw 119 through the assembly hole 117 opened in the assembly plate 116. The top of the assembly block 115 is provided with an interface with internal thread, so that the bottom end of the support column 108 can be screwed in vertically to fix it. The top of the support column 108 is also screwed in with a steel ball 114. The top of the steel ball 114 protrudes as a support point for the rotating parts. Multiple layers of rotating bearings 107 are sleeved at intervals on the outer periphery of the support column 108. Each layer of rotating bearings 107 is fixedly embedded in the rotating groove 106 opened in its own independent rotating plate 105. The rotating plate 105 is integrally formed at the middle of one end of the pallet 101, thus forming the rotating base of the multi-layer pallet 101. Each pallet 101 has a frame-type through structure, with a limiting strip 102 welded and fixed to its lower inner side wall; a perforated plate 103 with mesh is detachably embedded in the frame of the pallet 101, and the limiting strip 102 forms an anti-fall-off locking position on it from the bottom, and pull ropes 104 are threaded through both sides of the perforated plate 103 for easy picking and putting. When an external force pulls the pallet 101, the rotating plate 105 drives the entire pallet 101 to rotate horizontally around the support column 108 as the axis, and to unfold or reset horizontally through the rotating bearing 107. The steel ball 114 ensures the smoothness of the support column 112 to prevent it from snagging on external objects. Vertical support rods 109 are welded to the four corners of the bottom of the first-layer pallet 101 from bottom to top. Each support rod 109 has an internal thread tapped inside the tube at the bottom end. Matching threaded rods 110 are installed inside the support rods 109 through threaded engagement. Circular pads 111 are welded to the bottom of the threaded rods 110. The height of the pads 111 can be finely adjusted by rotating the threaded rods 110, so that the bottom surface of all pads 111 is completely in contact with the top surface of the base plate 118 to achieve horizontal support for the first layer. Support columns are welded and installed on both sides of the top of the remaining pallets 101. 112. The height of the support column 112 is lower than the vertical distance between adjacent trays 101. When a tray 101 is slightly depressed due to the weight of the tofu, the bottom of the upper tray 101 will contact and stably support the top of the support column 112, preventing the upper layer from tilting. The low height design of the support column 112 avoids interference with the bottom surface of the upper tray 101 during rotation. If necessary, the rotation function can be restored by manually lifting it slightly. After all trays 101 are rotated and reset, the tofu on the perforated plate 103 is in a fermentation environment with air permeation between layers. The tiered load-bearing system composed of pad 111, support rod 109, and support column 112 effectively transmits the gravity of each layer to the bottom plate 118. Combined with the reinforcing ribs 120 of the bottom plate 118 to suppress overall deformation, a stable multi-layer fermentation support structure is finally formed.

[0023] Working principle: First, the tofu blocks are loaded. The operator pulls the tray 101 with external force. Under the action of the rotating bearing 107 on the support column 108, the tray 101 can easily rotate horizontally around the outside of the support column 108, allowing part of the tray 101 to slide out of the fermentation rack body to expand the operating space. Then, with the help of the pull ropes 104 on both sides of the perforated plate 103 embedded in the tray 101, the perforated plate 103 can be smoothly lifted out of the tray 101. At this time, the separated perforated plate 103 can be used as an independent support unit, making it convenient to place the tofu blocks to be fermented on it. After loading, the perforated plate 103 with the tofu blocks is re-embedded into the tray 101. The limiting strip 102 fixed to the side wall forms a precise locking position for the perforated plate 103, ensuring its stability within the tray 101. Simultaneously, the perforated structure of the perforated plate 103 and the through-hole design of the tray 101 together ensure natural airflow during fermentation, creating a ventilated environment conducive to fermentation of tofu. Once all trays 101 are loaded with tofu blocks and pushed back to their initial positions, the entire fermentation rack enters its load-bearing working state. If the mass of a certain layer of tofu blocks is too large, causing a slight sinking of one side of the tray 101, the support pillars 112 fixed to the top two sides of the tray 101 will play a crucial supporting role—their height is specially designed to be slightly less than the original interval between the upper and lower trays 101. When the upper pallet 101 is slightly pressed down by the load, its bottom end will smoothly contact and adhere to the top of the corresponding support column 112 on the lower pallet 101, forming a direct support point. This multi-point distributed load-bearing method effectively prevents the upper pallet 101 from tilting and deforming due to uneven force at a single point, ensuring that each layer remains horizontal. The reduced height of the support column 112 also avoids it from obstructing the normal rotation operation of the pallet 101. Even if the contact is temporarily too tight due to downward pressure, the operator only needs to manually lift the pallet 101 slightly to release the support contact point and easily restore the rotation function. Regarding the stability design of the bottom pallet 101: the threaded rods 110 at the ends of the four corner support rods 109 at the bottom can be adjusted by screwing. Fine-tuning causes the bottom pad 111 to precisely fit and support the upper surface of the fixed base plate 118. This mechanism provides the bottom support plate 101 with a reliable horizontal support foundation, effectively distributing and bearing the superimposed load of the upper layers. This split load-bearing structure avoids single-point overload caused by the top pressure being entirely transmitted to the support column 108. At the same time, the tight fit between the pad 111 and the base plate 118, combined with the staggered reinforcing ribs 120 at the bottom of the base plate 118, greatly improves the deformation resistance of the bottom structure, jointly preventing the fermentation rack from tilting or settling on one side due to uneven load. This coordinated operation not only ensures the layered fermentation space and efficient ventilation of the fermented bean curd, but also provides a stable, adjustable, and pressure-resistant physical support environment.

[0024] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A multi-layer fermented bean curd rack, comprising multiple sets of vertically spaced through trays (101), characterized in that: Limiting strips (102) are fixedly installed on the lower side wall inside the tray (101). Perforated plates (103) are embedded in the tray (101). Pull ropes (104) are threaded through both sides of the perforated plates (103). A rotating plate (105) is fixedly installed in the middle of one end of the tray (101). A rotating groove (106) is opened in the middle of the rotating plate (105). A rotating bearing (107) is fixedly installed in the rotating groove (106). The rotating bearings (107) are respectively sleeved on the outside of the support column (108) at intervals.

2. The multi-layer fermented bean curd rack as described in claim 1, characterized in that: When arranged from bottom to top, the first group of pallets (101) has support rods (109) fixedly installed at the four corners of the bottom end. The support rods (109) have threaded rods (110) installed inside the bottom end of the support rods (109) by threads. The bottom ends of the threaded rods (110) are fixedly installed with pads (111).

3. The multi-layer fermented bean curd rack as described in claim 2, characterized in that: The top two sides of the tray (101) are respectively fixedly installed with support columns (112). The height of the support columns (112) is less than the spacing between the trays (101). When each set of trays (101) is pressed, it adheres to the support column (112) on the lower set of trays (101) to form support.

4. The multi-layer fermented bean curd rack as described in claim 3, characterized in that: The top of the support column (108) is threaded with a steel ball (114), the bottom of the support column (108) is threaded inside the top of the assembly block (115), and the bottom of the assembly block (115) is fixedly installed with an assembly plate (116).

5. A multi-layer fermented bean curd rack as described in claim 4, characterized in that: The assembly plate (116) has a plurality of assembly holes (117) spaced apart. The bottom end of the assembly plate (116) is attached to a base plate (118). An assembly screw (119) passes through the assembly hole (117) and the end of the assembly screw (119) is threadedly connected to the base plate (118).

6. A multi-layer fermented bean curd rack as described in claim 5, characterized in that: The top of the base plate (118) is respectively attached to the bottom of the pad (111), and several interlaced reinforcing ribs (120) are fixedly installed on the bottom of the base plate (118) to form a reinforcing structure of the base plate (118).

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