Automatic oil changing and filtering mechanism for frying machine

Abstract

The utility model relates to an automatic oil changing and filtering mechanism for a fryer, the automatic oil changing and filtering mechanism comprises an oil heating assembly and a heat spraying assembly, the oil heating assembly is arranged outside a frying box and used for heating frying oil, an oil outlet communicated with the oil heating assembly is formed in the outer wall of the frying box, and at least one filtering piece is arranged between the oil outlet and the oil heating assembly; the hot oil assembly further communicates with external automatic oil adding equipment so that new oil can be supplemented at any time. The hot spraying assembly is communicated with an inner cavity of the frying box and the hot oil assembly and used for conveying hot oil in the hot oil assembly into the frying box and spraying the hot oil in the frying box in a multi-range mode, and a waste discharging opening is further formed in the hot oil assembly so that waste oil can be conveniently discharged and collected. The method has the effects that the situation that oil-residue dough remains in the frying oil body for a long time is reduced, and meanwhile, the complexity of manual oil change is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of food processing machinery, and in particular to an automatic oil changing and filtering mechanism for a frying machine. Background Art

[0002] Deep-frying is a cooking method. Over-frying produces polycyclic aromatic hydrocarbons (PAHs). Whether it's fried dough twists, spring rolls, or meatballs enjoyed during festivals, or the fried dough sticks, fried cakes, and mianwo (steamed dough sticks) we eat for breakfast every day, or French fries, fried bread, and fried chicken wings, or snacks like potato chips and fried biscuits, all are fried foods.

[0003] Currently, deep-frying is mostly done manually. To improve frying efficiency and economic benefits, the frying oil is often used for a long time, and at the earliest, it is not replaced until the end of the day. Due to the high oil temperature, workers often have to scoop out the dough one spoonful at a time, transfer it to a bucket, and then reverse it, making the operation cumbersome. Furthermore, some assembly-line frying equipment has emerged, which uses stainless steel mesh cages fixed to a conveyor chain, or directly places the cold dough on a conveyor chain with the middle of the conveyor chain immersed in a frying box. The conveyor chain transports the cold dough into the hot oil in the frying box for frying, and then transports it out of the frying box for draining. However, with this equipment, the frying process can easily result in a large amount of dough residue remaining in the hot oil. Unlike manual frying, workers cannot constantly monitor the frying process, making it difficult to clean the dough residue in a timely manner. Prolonged frying of pasta can produce substances such as acrylamide, trans fats, and benzopyrene, which are seriously harmful to human health.

[0004] Therefore, there is an urgent need in the art for a mechanism that can automatically perform oil changing and filtering operations during the frying process of fried dough sticks. Utility Model Content

[0005] In order to reduce the long time of oil residue and dough remaining in the frying oil body and reduce the tediousness of manual oil change.

[0006] The present application provides an automatic oil changing and filtering mechanism for a fryer, which adopts the following technical solutions:

[0007] An automatic oil changing and filtering mechanism for a deep fryer comprises a hot oil assembly and a hot shower assembly. The hot oil assembly is arranged outside a deep frying box and is used to heat the frying oil. An oil outlet communicating with the hot oil assembly is provided on the outer wall of the deep frying box. At least one filter is provided between the oil outlet and the hot oil assembly. The hot oil assembly is also connected to an external automatic refueling device for replenishing new oil at any time. The hot shower assembly is respectively connected to the inner cavity of the deep frying box and the hot oil assembly and is used to deliver the hot oil in the hot oil assembly to the deep frying box and spray it in multiple ranges in the deep frying box. The hot oil assembly is also provided with a waste outlet for discharging and collecting waste oil.

[0008] Optionally, the hot oil assembly includes a hot oil tank, a heating pipe and a heating wire. The hot oil tank is arranged on one side of the frying box and is open at the top. The heating pipe is a serpentine heat exchange pipe laid in the hot oil tank. The heating wire is arranged in the heating pipe and electrically connected to an external power supply. The filter element is detachably arranged on the top wall of the hot oil tank.

[0009] Furthermore, the hot shower assembly includes a circulation pump, an upper oil pipe, a lower oil pipe and a spray head. The liquid inlet of the circulation pump is connected to the hot oil tank. The upper oil pipe and the lower oil pipe are respectively arranged on the frying box and are connected to the liquid outlet of the circulation pump through an oil passage. The conveyor chain for the fryer is located between the upper oil pipe and the lower oil pipe. Multiple spray heads are evenly spaced on the upper oil pipe and the lower oil pipe along the conveying direction of the conveyor chain, and the spray heads are arranged facing the conveyor chain.

[0010] Furthermore, the upper oil pipe and the lower oil pipe are respectively arranged on the outer wall of the frying box, and a plurality of spray branch pipes are evenly spaced on the upper oil pipe and the lower oil pipe along the conveying direction of the conveyor chain. The spray branch pipe extends into the frying box, and a plurality of the spray heads are evenly spaced on the spray branch pipe along the length direction of the spray branch pipe.

[0011] Furthermore, a stop valve is provided between the circulation pump, the oil pipeline and the hot oil tank.

[0012] Furthermore, the waste outlet is arranged on the oil pipeline, and an end cover is screwed onto the waste outlet.

[0013] Furthermore, a liquid level sensor is provided on the hot oil tank, a refueling port is provided on the outer wall of the hot oil tank and is connected to an external automatic refueling device, and the liquid level sensor is connected to the external automatic refueling device for signal connection.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. The utility model realizes the recycling of hot oil through the cooperation of the hot oil component and the hot shower component. The hot oil is filtered and removed through the filter element while being recycled, thereby reducing the possibility of harmful substances that may endanger human health caused by the oil residue being in the hot oil for a long time. Since the frying process is accompanied by the loss of oil, the oil can be replenished at any time through the refueling port on the hot oil tank in conjunction with the liquid level sensor and the external automatic refueling equipment, which is convenient and fast.

[0016] 2. The utility model provides a waste pipe on the oil pipeline, which can facilitate the replacement of waste oil in the hot oil tank after a certain period of use, so as to reduce the possibility of harmful substances generated by the waste oil endangering human health; after the waste oil is replaced, the oil residue and oil stains on the oil outlet of the hot oil tank and the frying box can be cleaned, and finally the edible oil in the hot oil tank can be refueled through the external automatic refueling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of an automatic oil changing and filtering mechanism for a frying machine according to the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram mainly showing the structure of the lower oil pipe of the present invention.

[0019] Figure markings: 1. Hot oil assembly; 11. Hot oil tank; 111. Refueling port; 12. Heating pipe; 13. Heating wire; 2. Hot shower assembly; 21. Circulation pump; 22. Upper oil pipe; 23. Lower oil pipe; 24. Spray head; 3. Frying box; 31. Oil outlet; 4. Filter element; 5. Spray branch pipe; 6. Lifting support; 7. Oil pipeline; 71. Waste outlet; 72. End cover; 8. Stop valve; 9. Liquid level sensor; 10. External automatic refueling equipment. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings understood by persons having ordinary skills in the field to which this application belongs. The words "a" or "an" and the like used in the patent application specification and claims of this application do not indicate a limitation on quantity, but rather indicate the presence of at least one.

[0022] The following is combined with Figure 1-2 This application is described in further detail.

[0023] The embodiment of the present application discloses an automatic oil changing and filtering mechanism for a fryer.

[0024] Reference Figure 1 and Figure 2, an automatic oil changing and filtering mechanism for a frying machine, comprising a hot oil assembly 1 and a hot shower assembly 2. The hot oil assembly 1 is mounted outside the frying box 3 for heating the frying oil. An oil outlet 31 communicating with the hot oil assembly 1 is provided on the outer wall of the frying box 3. At least one filter element 4 is installed between the oil outlet 31 and the hot oil assembly 1 to filter most of the frying oil in the oil during the oil circulation process, so as to reduce the possibility of frying oil residue remaining in the oil body for long-term frying and producing harmful substances. The hot oil assembly 1 is also connected to an external automatic refueling device 10 to replenish new oil at any time; the hot shower assembly 2 is respectively connected to the inner cavity of the frying box 3 and the hot oil assembly 1, for sending the hot oil in the hot oil assembly 1 to the frying box 3 and spraying it in multiple ranges in the frying box 3. A waste outlet 71 is provided on the hot oil assembly 1 to facilitate the discharge and collection of waste oil.

[0025] The hot oil assembly 1 includes a hot oil tank 11, a heating pipe 12 and a heating wire 13. The hot oil tank 11 is installed on one side of the frying box 3. The top of the hot oil tank 11 is open and a plurality of universal wheels with locks are installed on the bottom wall to facilitate the movement of the hot oil tank 11. The heating pipe 12 is a serpentine heat exchange pipe installed in the hot oil tank 11. The heating wire 13 is installed in the heating pipe 12 and is electrically connected to an external power supply.

[0026] When in use, the hot oil tank 11 moves to the bottom of the oil outlet 31, the power supply is supplied, the current flows through the heating wire 13 to generate heat and then transfers the heat to the heating tube 12, and the heating tube 12 heats the edible oil in the hot oil tank 11 to provide the hot oil required for frying. The filter element 4 is a filter mesh, which is detachably mounted on the top wall of the hot oil tank 11 by bolts to filter the oil flowing from the oil outlet 31 into the hot oil tank 11. In this embodiment, the filter element 4 can be a whole filter mesh with equal surface area on the upper surface of the hot oil tank 11, or it can be multiple filter meshes installed separately. The heating principle of the heating wire 13 is existing technology and will not be described in detail.

[0027] Reference Figure 1 and Figure 2 The hot shower assembly 2 includes a circulating pump 21, which is installed on one side of the frying box 3 through a lifting support 6. The height can be fine-tuned and it can be carried at any time to adapt to the movement of the hot oil tank 11 and the connection with the hot oil tank 11. The liquid inlet of the circulating pump 21 is connected to the hot oil tank 11 through a flange, and a shut-off valve 8 is installed between the liquid inlet of the circulating pump 21 and the hot oil tank 11 to facilitate the on-off and flow control of the suction of the circulating pump 21.

[0028] Furthermore, the hot shower assembly 2 also includes an upper oil pipe 22, a lower oil pipe 23 and a spray head 24. The upper oil pipe 22 and the lower oil pipe 23 are respectively arranged on the outer wall of the frying box 3 and are connected to the liquid outlet of the circulation pump 21 through the oil through pipe 7. The conveying chain of the assembly line frying equipment is located between the upper oil pipe 22 and the lower oil pipe 23. The upper oil pipe 22 and the lower oil pipe 23 are both evenly spaced along the conveying direction of the conveying chain. A plurality of spray branches 5 are evenly spaced along the length direction of the spray branch pipe 5. A plurality of spray heads 24 are evenly spaced along the length direction of the spray branch pipe 5. The spray heads 24 are arranged toward the conveying chain, thereby realizing hot oil spraying from the upper and lower sides of the cold pasta embryo in the process of feeding the cold pasta embryo, so that the cold pasta embryo is heated evenly during frying.

[0029] Specifically, the spray branch pipe 5 is integrally formed with the upper oil pipe 22 and the lower oil pipe 23. A plurality of plug holes are provided on the outer wall of the frying box 3. The spray branch pipe 5 is inserted into the frying box 3 through the plug holes. The oil passage 7 can also fix the upper oil pipe 22 and the lower oil pipe 23 on the frying box 3. The spray head 24 is a spray structure installed by threaded connection. It is a prior art and will not be described in detail.

[0030] Reference Figure 1 and Figure 2 In a further embodiment, a shut-off valve 8 is installed on the oil pipeline 7 to facilitate the flow and on-off control of the circulating pump 21 conveying hot oil to the upper oil pipe 22 and the lower oil pipe 23. A waste outlet 71 is provided on the oil pipeline 7, and an end cap 72 is screwed on the waste outlet 71. The setting of the waste outlet 71 can discharge the waste oil through the suction of the circulating pump 21 after the hot oil has been used for a period of time, thereby ensuring the safety of fried food. At the same time, when the hot oil in the hot oil tank 11 is emptied, the staff can also easily clean the oil residue stains in the hot oil tank 11.

[0031] Furthermore, a liquid level sensor 9 is installed on the hot oil tank 11, and a refueling port 111 is integrally formed on the outer wall of the hot oil tank 11 and is connected to an external automatic refueling device 10. The liquid level sensor 9 is signal-connected to the external automatic refueling device 10. Since the frying process is accompanied by oil loss, the oil can be replenished at any time through the refueling port 111 on the hot oil tank 11 in conjunction with the liquid level sensor 9 and the external automatic refueling device 10, which is convenient and fast; after the waste oil is replaced through the waste outlet 71, the hot oil tank 11 and the oil outlet 31 on the frying box 3 can be cleaned of oil residue and oil stains, and finally the edible oil in the hot oil tank 11 can be refueled through the external automatic refueling device 10.

[0032] Furthermore, a flow sensor may be installed on the oil pipeline 7 to monitor the circulation flow of the hot oil so that the operator can adjust the hot oil flow through the stop valve 8 at any time.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic oil changing and filtering mechanism for a frying machine, characterized in that: The invention comprises a hot oil component (1) and a hot shower component (2). The hot oil component (1) is arranged outside a frying box (3) for heating frying oil. An oil outlet (31) communicating with the hot oil component (1) is provided on the outer wall of the frying box (3). At least one filter (4) is provided between the oil outlet (31) and the hot oil component (1). The hot oil component (1) is also connected to an external automatic refueling device (10) so as to replenish new oil at any time. The hot shower component (2) is respectively connected to the inner cavity of the frying box (3) and the hot oil component (1) and is used to send the hot oil in the hot oil component (1) into the frying box (3) and perform multi-range spraying in the frying box (3). The hot oil component (1) is also provided with a waste outlet (71) for facilitating the discharge and collection of waste oil.

2. The automatic oil changing and filtering mechanism for a fryer according to claim 1, characterized in that: The hot oil assembly (1) comprises a hot oil tank (11), a heating pipe (12) and a heating wire (13); the hot oil tank (11) is arranged on one side of the frying box (3) and has an open top; the heating pipe (12) is a serpentine heat exchange pipe laid in the hot oil tank (11); the heating wire (13) is arranged in the heating pipe (12) and is electrically connected to an external power supply; the filter element (4) is detachably arranged on the top wall of the hot oil tank (11).

3. The automatic oil changing and filtering mechanism for a fryer according to claim 2, characterized in that: The hot shower assembly (2) comprises a circulation pump (21), an upper oil pipe (22), a lower oil pipe (23) and a spray head (24); the liquid inlet of the circulation pump (21) is connected to the hot oil tank (11); the upper oil pipe (22) and the lower oil pipe (23) are respectively arranged on the frying box (3) and are connected to the liquid outlet of the circulation pump (21) through an oil passage (7); a conveying chain for the frying machine is located between the upper oil pipe (22) and the lower oil pipe (23); a plurality of spray heads (24) are evenly spaced along the conveying direction of the conveying chain on both the upper oil pipe (22) and the lower oil pipe (23); the spray heads (24) are arranged toward the conveying chain.

4. The automatic oil changing and filtering mechanism for a fryer according to claim 3, characterized in that: The upper oil pipe (22) and the lower oil pipe (23) are respectively arranged on the outer wall of the frying box (3); a plurality of spray branch pipes (5) are evenly spaced on the upper oil pipe (22) and the lower oil pipe (23) along the conveying direction of the conveyor chain; the spray branch pipe (5) extends into the frying box (3); and a plurality of spray heads (24) are evenly spaced on the spray branch pipe (5) along the length direction of the spray branch pipe (5).

5. The automatic oil changing and filtering mechanism for a fryer according to claim 3, characterized in that: A stop valve (8) is provided between the circulation pump (21), the oil pipeline (7), and the hot oil tank (11).

6. The automatic oil changing and filtering mechanism for a fryer according to claim 3, characterized in that: The waste outlet (71) is provided on the oil pipeline (7), and an end cover (72) is screwed onto the waste outlet (71).

7. The automatic oil changing and filtering mechanism for a fryer according to claim 2, characterized in that: The hot oil tank (11) is provided with a liquid level sensor (9), an outer wall of the hot oil tank (11) is provided with a refueling port (111) and is connected to an external automatic refueling device (10), and the liquid level sensor (9) is signal-connected to the external automatic refueling device (10).

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