Mobile circulating pump equipment

Abstract

The invention discloses movable circulating pump equipment, and relates to the field of soy sauce fermentation equipment. The movable circulating pump equipment comprises the frame, the circulating pump and the control box, the circulating pump can be moved to the front of the fermentation tank needing circulation through the frame, each fermentation tank does not need to be provided with one circulating pump, and the cost can be greatly reduced. And after the corresponding duration is set in the control box, the circulating pump can work. And when the set time parameter is reached, the control box controls the circulating pump to be powered off, so that a worker does not need to time by himself, accurate control of the circulating time is realized, errors possibly caused by manual timing are avoided, the accuracy of the circulating time in the soy sauce fermentation process is ensured, and the stability of the quality of a soy sauce product is improved. And therefore, the working efficiency is greatly improved, and one worker can be easily responsible for circulating work of more circulating pumps.

Description

Technical Field

[0001] The invention relates to the field of soy sauce fermentation equipment, in particular to a mobile circulating pump equipment. Background Art

[0002] During the production process, soy sauce needs to be fermented in a fermentation tank. Every once in a while, the soy sauce at the bottom of the tank needs to be pumped out with a circulation pump and then transported back into the tank from the top, so that the soy sauce in the tank is fermented evenly. In the related art, it is expensive to equip each fermentation tank with a circulation pump, and different fermentation tanks have different fermentation stages and require different circulation times. Usually, the operating time of the circulation pumps is controlled by workers themselves. However, one worker needs to be responsible for multiple circulation pumps. When the number of circulation pumps increases, it is easy to miss or make mistakes, which makes it difficult to accurately control the circulation time of the soy sauce. Therefore, each worker is usually only responsible for the timing of three circulation pumps, resulting in low work efficiency and difficulty in uniformly controlling the quality of the soy sauce. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a mobile circulation pump device that can be moved to the corresponding fermentation tank when soy sauce circulation is required, eliminating the need to equip each fermentation tank with a circulation pump, thereby reducing costs. Furthermore, the device automatically timers and shuts down the device at specified times to ensure the quality of the soy sauce.

[0004] A mobile circulation pump device according to an embodiment of the present invention is used to circulate soy sauce in a fermentation tank. The mobile circulation pump device includes: a frame including a support platform, a movable wheel group, and a handrail, wherein the movable wheel group is arranged on the lower end surface of the support platform, one end of the handrail is connected to one end of the support platform, and the other end of the handrail is extended upward; A circulation pump is installed on the upper end surface of the support platform, the feed end of the circulation pump is connected to a feed pipe, the feed pipe is used to connect to the pipeline at the bottom of the fermentation tank, and the discharge end of the circulation pump is connected to a discharge pipe, the discharge pipe is used to connect to the pipeline at the top of the fermentation tank; The control box is electrically connected to the circulation pump, and the control box can control the working time of the circulation pump according to the set time parameters.

[0005] The mobile circulating pump device according to the embodiment of the present invention has at least the following beneficial effects: Since the soy sauce in the fermentation tank only needs to be circulated once every period of time, the circulating pump is transformed into a mobile circulating pump, and the circulating pump is installed on the upper end surface of the support platform. The worker pushes the frame to move by the handrail, so that the circulating pump can be easily and conveniently moved to the fermentation tank that needs to be circulated. It is not necessary for each fermentation tank to be equipped with a circulating pump, which can greatly reduce costs. In order to accurately time, a control box is also provided and electrically connected to the circulating pump. The worker can set the corresponding duration in the control box according to the cycle time required for the fermentation tank, and the circulating pump can work. After reaching the set time parameter, the control box controls the circulating pump to be powered off, so there is no need for the worker to time it himself. The control box of the present invention can control the working duration of the circulating pump according to the set time parameter, achieves accurate control of the cycle time, avoids the error that may occur in manual timing, ensures the accuracy of the cycle time during the soy sauce fermentation process, and thus improves the stability of the soy sauce product quality. Thereby greatly improving work efficiency, making it possible for a worker to be easily responsible for the circulation work of more circulating pumps.

[0006] According to some embodiments of the present invention, the discharge pipe includes a connecting pipe and a first adjusting pipe, one end of the connecting pipe is fixedly connected to the discharge end of the circulation pump, the other end of the connecting pipe extends upward and is connected to the first adjusting pipe, and the angle between the first adjusting pipe and the connecting pipe is adjustable in the horizontal direction.

[0007] According to some embodiments of the present invention, the end surface of the connecting tube facing one end of the first adjusting tube is provided with one of an annular protrusion or an annular groove, the end surface of the first adjusting tube facing one end of the connecting tube is provided with the other of the annular groove or the annular protrusion, the annular protrusion is inserted into the annular groove, and the discharge pipe also includes a locking piece, which is arranged around the connection between the connecting tube and the first adjusting tube and is detachably connected to the connection between the connecting tube and the first adjusting tube.

[0008] According to some embodiments of the present invention, the locking member is a pipe clamp.

[0009] According to some embodiments of the present invention, the first regulating tube includes a first tube segment and a second tube segment connected to each other, and the central axis of the first tube segment is perpendicular to the central axis of the second tube segment.

[0010] According to some embodiments of the present invention, the discharge pipe also includes a second adjusting pipe, the second adjusting pipe includes a third pipe segment, a fourth pipe segment and a fifth pipe segment fixedly connected in sequence, the third pipe segment and the fifth pipe segment are respectively extended in the horizontal direction, the central axis of the fourth pipe segment is perpendicular to the central axis of the third pipe segment and the fifth pipe segment, the end of the third pipe segment away from the fourth pipe segment is connected to the first adjusting pipe, and the relative angle between the third pipe segment and the first adjusting pipe is adjustable to change the height of the fifth pipe segment.

[0011] According to some embodiments of the present invention, the feed pipe is provided with a liquid detection sensor, which is used to determine whether there is liquid in the feed pipe, and the control box can control the start and stop of the circulation pump according to the signal of the liquid detection sensor.

[0012] According to some embodiments of the present invention, the feed pipe is further provided with a ball valve switch, and the ball valve switch is used to guide the soy sauce in the feed pipe for sampling.

[0013] According to some embodiments of the present invention, the control box is fixedly connected to the armrest, and the control button of the control box is arranged on the upper end surface of the control box.

[0014] According to some embodiments of the present invention, the handrail is fixedly connected to a mounting frame, and the mounting frame is used to install a parasol.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which: Figure 1 It is a simplified schematic diagram of the structure of a mobile circulating pump device according to an embodiment of the present invention; Figure 2 It is an exploded view of the first regulating pipe and the connecting pipe according to an embodiment of the present invention.

[0017] Reference numerals: Mobile circulation pump equipment 1000; Frame 100; support platform 110; moving wheel set 120; handrail 130; mounting frame 131; Circulation pump 200; feed pipe 210; liquid detection sensor 211; ball valve switch 212; discharge pipe 220; connecting pipe 221; first regulating pipe 222; first pipe section 223; second pipe section 224; annular protrusion 225; annular groove 226; locking member 227; second regulating pipe 230; third pipe section 231; fourth pipe section 232; fifth pipe section 233; Control box 300. DETAILED DESCRIPTION

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Prior art requires that the soy sauce be regularly pumped out of the bottom of the tank and pumped back in from the top to ensure uniform fermentation. This traditional method equips each fermenter with a fixed circulation pump, resulting in high equipment costs. Due to the varying fermentation stages of different fermenters, operators must manually record and control the operating time of each circulation pump. Timing errors are common when overseeing multiple units, and a single worker can typically only effectively manage three circulation pumps, limiting production efficiency.

[0023] To address the above issues, analysis revealed that the high cost of fixed equipment stems from the repeated configuration of dedicated pumps, while manual timing errors stem from the distraction of attention when managing multiple devices. Based on this, the idea of ​​using mobile equipment to share circulating pumps across multiple tanks was proposed, while an automatic timing device was introduced to replace manual operation. To address the mobility issue, a support platform with a mobile structure was designed; to achieve precise control, a programmable timing control system was developed. Figure 1 and Figure 2As shown, this embodiment provides a mobile circulation pump device 1000 for driving the circulation of soy sauce in a fermentation tank. The mobile circulation pump device 1000 includes a frame 100, a circulation pump 200 and a control box 300. The frame 100 includes a support platform 110, a movable wheel group 120 and an armrest 130. The movable wheel group 120 is arranged at the lower end of the support platform 110, and the armrest 130 is connected to one end of the support platform 110 and extends upward. The circulation pump 200 is installed on the upper end surface of the support platform 110, and its feed end is connected to the feed pipe 210 at the bottom of the fermentation tank, and the discharge end is connected to the discharge pipe 220 at the top of the fermentation tank. The control box 300 is electrically connected to the circulation pump 200 and controls the working time of the pump according to the set time parameters.

[0024] The frame 100 refers to a frame structure that supports the circulation pump 200 and provides a mobile function. For example, it can be implemented by using a steel welded frame with universal wheels. Its support platform 110 provides a stable mounting surface for the circulation pump 200. The movable wheel group 120 is arranged on the lower end surface of the support platform 110 and includes four wheels, two of which are fixed wheels and are arranged on the front side of the support platform 110, and the rear two wheels are universal wheels with brake functions, which facilitate the fixing of the equipment after moving to the designated position. The universal wheels are arranged on the rear side of the support platform 110 to facilitate the steering of the frame 100. One end of the handrail 130 is firmly connected to the rear side of the support platform 110 by welding, and the other end of the handrail 130 is extended upward. The handrail 130 can be made of stainless steel pipe with a polished surface for easy gripping by the operator. The circulation pump 200 refers to a power device for liquid transportation. For example, a corrosion-resistant food-grade centrifugal pump can be used, which is connected to the pipeline system through a flange connection. The circulation pump 200 utilizes a sanitary-grade 316L stainless steel pump head, boasting a power of 7.5kW, a flow rate of 20m³ / h, and a head of 40m. The pump motor is fitted with a waterproof cover to meet the requirements of soy sauce circulation. The control box 300 is the electrical unit that performs timing control. Specifically, a PLC controller coupled with a touchscreen interface allows for preset and execution of work cycles. For example, the control box 300 can be set to 0-90 hours or 0-90 minutes to meet the cycle time requirements of various fermentation processes. The control box 300 also incorporates an overload protection device that automatically shuts off power to the circulation pump 200 in the event of an abnormality, protecting the equipment.

[0025] During operation, the mobile circulation pump equipment 1000 is moved to the side of the target fermentation tank, the feed pipe 210 is connected to the pipe at the bottom of the tank, and the discharge pipe 220 is connected to the pipe at the top of the tank. After the control box 300 presets the circulation period, it automatically starts the circulation pump 200 to run for a specified period of time. After completing the circulation operation of the tank, it is transferred to the next fermentation tank. The planar structure of the support platform 110 ensures the stability of the pump body operation, the movable wheel group 120 enables the equipment to be quickly switched between different workstations, and the handrail 130 facilitates manual operation. Traditional fixed pumps require separate configuration for each fermentation tank, while this solution realizes multi-tank sharing through a mobile design. For example, 20 fermentation tanks only need to be equipped with 10 mobile circulation pumps 200, which greatly reduces the equipment investment cost. The existing technology relies on manual timing, which is prone to errors. This solution uses a programmable controller to achieve precise timing and reduce human operational errors. Through the above technical solution, this application effectively solves the resource waste caused by repeated equipment configuration during the circulation operation of multiple fermentation tanks and avoids the cycle time deviation caused by manual timing. As a result, one worker can be responsible for 5 to 8 mobile circulation pump devices 1000, greatly improving work efficiency. The mobile structure enables a single device to serve multiple fermentation tanks, and the automated operation of the control system reduces dependence on operators, thereby improving production efficiency and ensuring the consistency of soy sauce quality.

[0026] Since the pipe heights of different fermentation tanks are different, in order to improve the versatility of the mobile circulation pump device 1000, refer to Figure 1 As shown, in an embodiment of the present invention, the discharge pipe 220 includes a connecting pipe 221 and a first adjusting pipe 222, one end of the connecting pipe 221 is fixedly connected to the discharge end of the circulation pump 200, and the other end of the connecting pipe 221 extends upward and is connected to the first adjusting pipe 222, and the angle between the first adjusting pipe 222 and the connecting pipe 221 is adjustable in the horizontal direction, that is, the first adjusting pipe 222 can be rotated relative to the connecting pipe 221 to change the relative position of the first adjusting pipe 222 and the connecting pipe 221.

[0027] The connecting pipe 221 is a rigid pipe that directly connects to the discharge end of the circulating pump 200. For example, it can be made of stainless steel or corrosion-resistant plastic tubing, with its distal end extending upward to form a fluid transport path. The first regulating pipe 222 is a pipe assembly connected to the distal end of the connecting pipe 221. For example, it can be made of a corrugated hose or an articulated pipe section. The discharge direction is adjusted by varying the horizontal angle between the connecting pipe 221 and the first regulating pipe 222. Horizontally adjustable means that the connection between the connecting pipe 221 and the first regulating pipe 222 has rotational freedom. For example, this can be achieved by using a flange in conjunction with an annular slide rail structure, allowing the pipe to be adjusted within a horizontal plane within a range of 0-180 degrees.

[0028] When the equipment is moved to different fermentation tank operating areas, the operator can manually rotate the first adjustment tube 222 according to the actual position of the top interface of the tank body so that it forms a matching horizontal angle with the connecting tube 221. For example, when the top interface is located on the left side of the tank body, the first adjustment tube 222 can be deflected to the left; when the interface is located on the right side, it can be deflected to the right. This angle adjustment method does not require disassembly of the pipeline or adjustment of the overall position of the equipment. The discharge port and the tank top interface can be quickly aligned by simply changing the relative angle of the two sections of the pipeline. This solution provides a horizontally adjustable pipeline connection structure, which enables the operator to adapt to tank top interfaces in different positions by simply adjusting the pipeline angle without changing the position of the equipment, thereby reducing the frequency of equipment movement and the number of pipeline modifications.

[0029] The angle adjustment method of the first adjustment tube 222 and the connecting tube 221 can also be: Figure 2 As shown, in the embodiment of the present invention, the end surface of the connecting tube 221 facing the first regulating tube 222 is provided with one of an annular protrusion 225 and an annular groove 226. The end surface of the first regulating tube 222 facing the connecting tube 221 is provided with the other of the annular groove 226 and the annular protrusion 225. The annular protrusion 225 is inserted into the annular groove 226. The discharge tube 220 also includes a locking member 227, which is disposed around the connection between the connecting tube 221 and the first regulating tube 222 and is detachably connected to the connection between the connecting tube 221 and the first regulating tube 222. It should be noted that for ease of explanation, the annular protrusion 225 is provided on the connecting tube 221 and the annular groove 226 is provided on the first regulating tube 222 as an example.

[0030] The annular protrusion 225 is an annular protrusion structure provided on the end face of the connecting tube 221. For example, it can be implemented by integral molding or welding. The interlocking design of the annular protrusion 225 and the annular groove 226 enables rapid positioning of the connecting tube 221 and the first regulating tube 222. The annular groove 226 is an annular groove structure provided on the end face of the first regulating tube 222. For example, it can be implemented by integral injection molding. The cooperation between the annular groove 226 and the annular protrusion 225 can limit the relative displacement of the connecting tube 221 and the first regulating tube 222. The locking member 227 is a fastening component used to secure the connecting tube 221 and the first regulating tube 222. For example, it can be implemented by a pipe clamp or flange structure. The locking member 227 prevents the annular protrusion 225 from disengaging from the annular groove 226 by surrounding the connection and applying radial pressure.

[0031] The connecting tube 221 and the first adjusting tube 222 are initially positioned by the engagement of the annular protrusion 225 and the annular groove 226. After the locking member 227 surrounds the connection and is locked, the stability of the two after the horizontal angle adjustment can be ensured. When the relative angle between the first adjusting tube 222 and the connecting tube 221 needs to be adjusted, it is only necessary to loosen the locking member 227, manually rotate the first adjusting tube 222 to the target angle, and then re-lock it. The engagement structure of the annular protrusion 225 and the annular groove 226 can limit the relative movement of the two in the vertical direction, preventing the connection from loosening due to gravity or liquid pressure. This solution retains the flexibility of angle adjustment and ensures the sealing of the connection through the engagement of the annular protrusion 225 and the annular groove 226, combined with the detachable locking member 227.

[0032] Reference Figure 1 As shown, in the embodiment of the present invention, the first regulating tube 222 includes a first tube segment 223 and a second tube segment 224, the central axis of the first tube segment 223 being perpendicular to the central axis of the second tube segment 224. The first tube segment 223 is the portion of the tube body connected to the connecting tube 221. It can be made of, for example, metal or corrosion-resistant plastic. Its central axis aligns with the extension direction of the connecting tube 221 and is used to guide the flow of liquid. The second tube segment 224 is the portion of the tube body connected to the first tube segment 223. It can be fixed to the first tube segment 223 via an elbow or flange, or can be integrally formed with the first tube segment 223. Its central axis is perpendicular to the first tube segment 223 and is used to change the direction of liquid flow.

[0033] The vertical connection of the two pipe sections allows for height adjustment of the discharge direction through a single bend, thus adapting to the installation requirements of different fermentation tanks. This solution, through the combined structure of two vertical pipe sections, allows the discharge direction to be changed simply by rotating the adjustment pipe as a whole, significantly simplifying the operation process. This application allows for rapid adjustment of the height of the discharge pipe 220 to accommodate the installation positions of the top pipes of different fermentation tanks, avoiding the efficiency loss caused by frequent pipe replacement and reducing equipment maintenance costs.

[0034] In order to further improve the versatility of the mobile circulating pump 200, refer to Figure 1 As shown, in an embodiment of the present invention, the discharge pipe 220 also includes a second adjusting pipe 230, and the second adjusting pipe 230 includes a third pipe segment 231, a fourth pipe segment 232 and a fifth pipe segment 233 fixedly connected in sequence, and the third pipe segment 231 and the fifth pipe segment 233 are respectively extended in the horizontal direction, and the central axis of the fourth pipe segment 232 is perpendicular to the central axis of the third pipe segment 231 and the fifth pipe segment 233, and the end of the third pipe segment 231 away from the fourth pipe segment 232 is connected to the first adjusting pipe 222, and the relative angle between the third pipe segment 231 and the first adjusting pipe 222 can be adjusted to change the height of the fifth pipe segment 233.

[0035] The second regulating pipe 230 refers to a pipeline structure composed of three pipe sections in different directions, which can be achieved by, for example, elbow welding, flange connection or integral injection molding, and a horizontal-vertical-horizontal direction is formed by the three-section structure. The third pipe section 231 and the fifth pipe section 233 are respectively extended in the horizontal direction, which means that the axes of the two pipe sections are parallel to the ground. The central axis of the fourth pipe section 232 is perpendicular to the central axis of the third pipe section 231 and the fifth pipe section 233, which means that the section of the pipe forms a vertical steering structure, which can be achieved by, for example, a right-angle elbow or a U-shaped elbow. The adjustable relative angle between the third pipe section 231 and the first regulating pipe 222 means that the connection between the two is designed to be a rotatable structure, which can be achieved by, for example, a flange with a swivel joint or a clamp-type connector.

[0036] The second regulating tube 230 has a three-section structure that extends horizontally, turns vertically, and then extends horizontally again. After the third tube segment 231 is connected to the first regulating tube 222, the operator can rotate the third tube segment 231 to adjust the angle between it and the first regulating tube 222. As the third tube segment 231 rotates around its connection, the positions of the fourth and fifth tube segments 232, 233 change, causing the height of the fifth tube segment 233 to rise or fall. For example, when the third tube segment 231 tilts upward, the fourth tube segment 232 raises the fifth tube segment 233; when the third tube segment 231 tilts downward, the height of the fifth tube segment 233 decreases. This allows the height of the end of the fifth tube segment 233 to be adaptively adjusted based on the actual position of the fermenter top connection.

[0037] By adopting the above technical solution, the present application can quickly match the end position of the discharge pipe 220 through rotation adjustment according to the actual installation height of the interface at the top of the fermentation tank, thereby avoiding installation difficulties or liquid leakage problems caused by differences in interface height, improving the adaptability of the equipment to fermentations of different specifications, and reducing operational complexity.

[0038] Reference Figure 1 As shown, in an embodiment of the present invention, the feed pipe 210 is provided with a liquid detection sensor 211, which is used to determine whether there is liquid in the feed pipe 210, and the control box 300 can control the start and stop of the circulation pump 200 according to the signal of the liquid detection sensor 211. The liquid detection sensor 211 refers to a device that can detect the presence of liquid in the pipeline. For example, it can be implemented by a capacitive sensor, a photoelectric sensor, or an ultrasonic sensor. It determines whether there is liquid in the pipeline by detecting the difference in dielectric constant between the liquid and the air or the change in the optical signal. The control box 300 refers to a device for receiving sensor signals and performing logical control. For example, it can be implemented by a programmable logic controller or a single-chip microcomputer. The start and stop of the circulation pump 200 are automatically managed through a preset program.

[0039] Liquid detection sensor 211 is mounted on the interior or exterior of feed pipe 210. When feed pipe 210 is connected to the bottom pipe of the fermenter, the sensor monitors the liquid flow status within the pipe in real time. If liquid is detected, it indicates that circulation pump 200 is in normal operation, and control box 300 maintains circulation pump 200 operation. If liquid is detected to be absent, indicating a possible blockage or liquid depletion within the pipe, control box 300 can stop circulation pump 200 after 8 seconds or immediately to prevent idling and damage to the equipment. This can prevent idling or excessive operation of circulation pump 200 due to manual timing errors or oversights, reduce the risk of equipment failure, and ensure the continuity and stability of the soy sauce circulation process, thereby improving fermentation uniformity.

[0040] Reference Figure 1 As shown, in this embodiment of the present invention, the feed pipe 210 is further provided with a ball valve 212, which is used to extract the soy sauce from the feed pipe 210 for sampling. Ball valve 212 is a valve that controls the flow of fluid by rotating a ball. For example, it can be implemented using a metal ball valve with a handle. The valve body of the ball valve can be fixedly connected to the side wall or bottom of the feed pipe 210. The function of ball valve 212 is to allow soy sauce samples to be taken at any time without disassembling the pipe, thus avoiding the risk of leaks and contamination caused by frequent disassembly.

[0041] The inlet end of the ball valve switch 212 is connected to the interior of the feed pipe 210, and the outlet end can be connected to a sampling container. When sampling is needed, the valve core is rotated to the open state by rotating the handle of the ball valve switch 212, and the soy sauce in the feed pipe 210 flows out to the external container through the ball valve switch 212 under the pressure of the circulation pump 200. After the sampling is completed, the handle is rotated in the opposite direction to close the valve to maintain the sealing of the feed pipe 210. This design allows workers to quickly complete the sampling operation without stopping the circulation pump 200 or disconnecting the pipeline. It simplifies the sampling process, reduces equipment downtime, and reduces the risk of pipeline leakage or contamination due to repeated disassembly and assembly. The present application realizes fast and convenient sampling operations during the soy sauce fermentation process, which is convenient for workers to monitor the fermentation status in real time, thereby adjusting the circulation parameters according to the test results to ensure the consistency of soy sauce quality in different fermentation tanks.

[0042] Reference Figure 1As shown, in one embodiment of the present invention, a mounting bracket 131 is fixedly connected to the armrest 130. Mounting bracket 131 is used to mount a parasol. Mounting bracket 131 is a support structure fixed to the armrest 130, for example, a metal bracket or an adjustable clamp, used to support and secure the parasol's handle. A parasol is an umbrella-shaped device with a sunshade function. For example, it can be foldable or retractable, and the umbrella can be made of UV-resistant fabric. The fixed position of mounting bracket 131 allows the umbrella's expansion angle to be adjusted to suit different lighting conditions. Conventional circulating pump 200 equipment does not have a sunshade device, requiring workers to carry their own sunshade tools when operating in outdoor environments, which is inconvenient and poses the risk of tools tipping over. This solution, however, integrates mounting bracket 131 into the armrest 130, integrating the sunshade function with the equipment. This eliminates the need for carrying additional tools and prevents the umbrella from occupying floor space. This application addresses the issue of workers being exposed to sunlight during outdoor operations. The fixed sunshade device reduces the risk of heatstroke and visual fatigue caused by strong sunlight, thereby improving operational accuracy and equipment management efficiency. At the same time, the control box 300 can also be protected on rainy days to reduce malfunctions caused by water ingress and improve safety. In addition, the integrated design of the mounting frame 131 prevents the parasol from being accidentally hit by the moving equipment when placed alone, thereby improving operational safety.

[0043] In an embodiment of the present invention, the control box 300 is fixedly connected to the armrest 130, and the control buttons of the control box 300 are arranged on the upper end surface of the control box 300. The control box 300 is fixedly connected to the armrest 130 means that the structure of the control box 300 and the armrest 130 is fixed by a mechanical connection method, for example, it can be achieved by bolt connection, welding or a snap-fit ​​structure to ensure that the control box 300 remains stable during movement. Among them, the control buttons are arranged on the upper end surface means that the layout of the control buttons is located on the top plane of the control box 300, for example, it can be achieved by using flat buttons or embedded buttons, which is convenient for the operator to directly observe and touch when standing. The control box 300 is installed on the extension part of the armrest 130 by a fixed connection method. When the operator pushes the armrest 130 to move the equipment, the control buttons can be directly operated without changing the posture. The layout of the upper end surface of the control box 300 makes the buttons within the line of sight, avoiding accidental touch or line of sight obstruction due to leaning over or sideways operation. This solution makes the operation line shorter and more ergonomic by combining the control box 300 with the armrest 130 and optimizing the button layout.

[0044] In some specific embodiments, the extended portion of the armrest 130 can be designed as a horizontal support plate, the control box 300 is fixed to the surface of the support plate by bolts, and the control buttons are made of waterproof material and arranged horizontally along the upper end surface, for example, at intervals of 5 cm to 10 cm, to adapt to different operating habits.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. Mobile circulating pump equipment, used to drive the soy sauce circulation in the fermentation tank, characterized by: The mobile circulating pump equipment comprises: The frame includes a support platform, a movable wheel group and an armrest, wherein the movable wheel group is arranged on the lower end surface of the support platform, one end of the armrest is connected to one end of the support platform, and the other end of the armrest is extended upward; A circulation pump is installed on the upper end surface of the support platform, the feed end of the circulation pump is connected to a feed pipe, the feed pipe is used to connect to the pipeline at the bottom of the fermentation tank, and the discharge end of the circulation pump is connected to a discharge pipe, the discharge pipe is used to connect to the pipeline at the top of the fermentation tank; The control box is electrically connected to the circulation pump, and the control box can control the working time of the circulation pump according to the set time parameters.

2. The mobile circulating pump device according to claim 1, characterized in that: The discharge pipe includes a connecting pipe and a first adjusting pipe. One end of the connecting pipe is fixedly connected to the discharge end of the circulation pump, and the other end of the connecting pipe extends upward and is connected to the first adjusting pipe. The angle between the first adjusting pipe and the connecting pipe is adjustable in the horizontal direction.

3. The mobile circulating pump device according to claim 2, characterized in that: The end surface of the connecting tube facing one end of the first adjusting tube is provided with one of an annular protrusion or an annular groove, the end surface of the first adjusting tube facing one end of the connecting tube is provided with the other of the annular groove or the annular protrusion, the annular protrusion is inserted into the annular groove, and the discharge pipe also includes a locking piece, which is arranged around the connection between the connecting tube and the first adjusting tube, and is detachably connected to the connection between the connecting tube and the first adjusting tube.

4. The mobile circulating pump device according to claim 3, characterized in that: The locking piece is a pipe clamp.

5. The mobile circulating pump device according to claim 2, characterized in that: The first regulating tube includes a first tube section and a second tube section connected to each other, and the central axis of the first tube section is perpendicular to the central axis of the second tube section.

6. The mobile circulating pump device according to claim 2, characterized in that: The discharge pipe also includes a second adjusting pipe, which includes a third pipe segment, a fourth pipe segment and a fifth pipe segment fixedly connected in sequence. The third pipe segment and the fifth pipe segment are respectively extended in the horizontal direction. The central axis of the fourth pipe segment is perpendicular to the central axis of the third pipe segment and the fifth pipe segment. The end of the third pipe segment facing away from the fourth pipe segment is connected to the first adjusting pipe, and the relative angle between the third pipe segment and the first adjusting pipe can be adjusted to change the height of the fifth pipe segment.

7. The mobile circulating pump device according to claim 1, characterized in that: The feed pipe is provided with a liquid detection sensor, which is used to determine whether there is liquid in the feed pipe. The control box can control the start and stop of the circulation pump according to the signal of the liquid detection sensor.

8. The mobile circulating pump device according to claim 1, characterized in that: The feed pipe is also provided with a ball valve switch, and the ball valve switch is used to guide the soy sauce in the feed pipe for sampling.

9. The mobile circulating pump device according to claim 1, characterized in that: The control box is fixedly connected to the armrest, and the control buttons of the control box are arranged on the upper end surface of the control box.

10. The mobile circulating pump device according to claim 1, characterized in that: The handrail is fixedly connected with a mounting frame, and the mounting frame is used for mounting a parasol.

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