A circulating water pump and a method of using the same for ice making equipment

Abstract

The present invention relates to the technical field of circulating water pumps, and discloses a circulating water pump and a method for using the circulating water pump for ice making equipment, comprising a circulating pump body, wherein the circulating pump body is connected to a driving mechanism, and water inlets and water outlets are respectively arranged on both sides of the circulating pump body, wherein the water inlets and the water outlets are respectively connected to the inner cavity of the circulating pump body, and a load filtering mechanism and a cross channel are arranged at the other end of the water outlet, wherein the load filtering mechanism is located inside the cross channel, and the load filtering mechanism comprises a main filtering component, an auxiliary filtering component, and a pressure switching component. The circulating pump body can be in a state of circulating water pumping during the process of pumping water to the ice making equipment by switching the main filtering component and the auxiliary filtering component, thereby preventing the main filtering component from being blocked by impurities in the circulating pump body and the water pipe after the main filtering component has been used for a long time, thereby affecting the operation of the ice making equipment.

Description

Technical Field

[0001] The invention relates to the technical field of circulating water pumps, in particular to a circulating water pump and a method for using the circulating water pump in ice-making equipment. Background Art

[0002] With the improvement of people's living standards and the change of dietary structure, ice machines have been widely used in restaurants, star-rated hotels, bars, fast food chains, etc. At present, the water pumps used in most ice machines are circulating water pumps, which circulate water for ice-making equipment; circulating water pumps are set in thermal power stations (thermal power centers), heat sources or cold sources, etc. In the closed loop of the heating system or air-conditioning water system, the circulating water pump does not lift the water to a high place, but circulates the water in the system over and over again.

[0003] When the circulating water pump is in use, wear will occur between the circulating water impeller and the pump body, so that small metal debris will fall from the circulating water impeller and the pump body, and the fallen metal debris will be discharged from the discharge port into the subsequent pipeline as the circulating water pump is pumped, so that the liquid in the pipeline contains metal debris, thereby affecting the normal use of the pumped liquid, especially in the process of circulating water supply to the ice making equipment, when metal debris affects the normal use of the circulating water pump, the ice making equipment cannot be used normally, and the general treatment method is to provide a filtering mechanism during the water supply process to filter the water flow pumped by the circulating pump body. After the filtering mechanism is used for a long time, metal debris and impurities will cause blockage to the filtering mechanism. At this time, it is still necessary to clean the filtering device. Failure to clean the blocked filtering mechanism in time will cause the water flow pumped by the circulating water pump to decrease, which not only affects the operation of the ice making equipment, but also causes a reduction in water source during ice making, causing the ice making equipment to work in a high-power and low-efficiency state for a long time. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a circulating water pump and a method for using the ice-making device. The circulating water pump has the advantages of switching between a main filter component and an auxiliary filter component so that the circulating pump body can be in a circulating water pumping state during the process of pumping water for the ice-making device, thereby preventing the main filter component from being blocked by impurities in the circulating pump body and the water pipeline after the main filter component has been used for a long time, thereby affecting the operation of the ice-making device. The present invention solves the problem that after the filter mechanism has been used for a long time, metal debris and impurities may block the filter mechanism, and the filter device still needs to be cleaned at this time. However, if the blocked filter mechanism is not cleaned in time, the water flow pumped by the circulating water pump will be reduced, which not only affects the operation of the ice-making device, but also causes a reduction in the water source during ice-making, causing the ice-making device to operate in a high-power and low-efficiency state for a long time.

[0006] (2) Technical Solution

[0007] To solve the above technical problems, the present invention provides the following technical solution: a circulating water pump, including a circulating pump body, the circulating pump body is connected with a driving mechanism, water inlets and water outlets are respectively arranged on both sides of the circulating pump body, the water inlets and the water outlets are respectively communicated with the inner cavity of the circulating pump body, the other end of the water outlet is provided with a load filtering mechanism and a cross channel, the load filtering mechanism is located inside the cross channel, the load filtering mechanism includes a main filtering component, an auxiliary filtering component and a pressure switching component, the main filtering component is located at the tail end of the water outlet, the auxiliary filtering component is located on one side of the main filtering component, the pressure switching component is located between the main filtering component and the auxiliary filtering component, the pressure switching component includes a load support, a switching baffle and a boosting and resetting baffle, the load support is located at the tail end of the main filtering component, the switching baffle is located on one side of the main filtering component, and the switching baffle extends to one side and is on one side of the auxiliary filtering component, the boosting and resetting baffle is located on the other side of the auxiliary filtering component, the cross channel includes a main water outlet channel and an auxiliary water outlet channel, the pressure switching component is located inside the main water outlet channel, the main water outlet channel is communicated with the tail end of the main filtering component, and the auxiliary filtering component is located in the auxiliary water outlet channel.

[0008] Preferably, the cross channel further includes a filtering cavity and a backwashing channel, the filtering cavity is connected with the tail end of the water outlet, the main filtering component is located inside the filtering cavity, the main water outlet channel is located at the tail of the filtering cavity, the backwashing channel is located on one side surface of the main water outlet channel, and the auxiliary water outlet channel is located on the other side surface of the filtering cavity.

[0009] Preferably, the main filtering component includes a main filter core, a U-shaped frame and a guiding sliding groove, the main filter core is located inside the filtering cavity, the U-shaped frame is located outside the main filter core, the opening of the side surface of the U-shaped frame is arranged opposite to the backwashing channel, the front end and the tail end of the main filter core are respectively communicated with the filtering cavity and the main water outlet channel, the guiding sliding groove is located on the peripheral side of the inner cavity of the main water outlet channel, guiding sliding blocks are arranged on the periphery of the U-shaped frame, and the guiding sliding blocks are in sliding fit with the guiding sliding groove.

[0010] Preferably, the auxiliary filtering component includes an auxiliary filter core, a closing plate and an elastic push rod; the auxiliary filter core is located inside the auxiliary water outlet channel, the elastic push rod is located between the auxiliary filter core and the auxiliary water outlet channel, the auxiliary filter core is of a cube structure, two of the four sides of the auxiliary filter core are respectively communicated with the filtering cavity and the auxiliary water outlet channel, and the other four sides of the auxiliary filter core are respectively provided with the closing plates.

[0011] Preferably, the auxiliary filter element is closely attached to the auxiliary water outlet channel on one side close to the filter cavity, a cavity is arranged between the closing plate arranged on the other side of the auxiliary filter element and the side wall of the auxiliary water outlet channel, the boost reset baffle is located in the cavity, and one end of the boost reset baffle is connected to the closing plate, the other end of the boost reset baffle is closely attached to the side wall of the auxiliary water outlet channel, and the cavity is connected to the main water outlet channel.

[0012] Preferably, the main filter assembly and the auxiliary filter assembly are arranged side by side, the backwash channel and the auxiliary water outlet channel are respectively located on both sides of the filter cavity, and the backwash channel and the auxiliary water outlet channel are staggered. When the main filter assembly is blocked, the main filter assembly pushes the pressure switching assembly to move into the main water outlet channel. After the main filter assembly and the auxiliary filter assembly are staggered, the auxiliary filter assembly extends into the filter cavity, and one side of the main filter assembly faces the backwash channel.

[0013] Preferably, the pressure switching assembly also includes a load spring, which is sleeved on the outside of the load support member, and the load support member is composed of a sleeve and a sleeve rod. The two ends of the load spring are respectively located on the sleeve and the sleeve rod, one end of the sleeve is connected to the side of the main filter assembly, the sleeve is sleeved on the sleeve rod, and the other end of the sleeve rod is connected to the side wall of the main water outlet channel through a support rod.

[0014] Preferably, the backwash channel is communicated with the main water outlet channel, the tail end of the backwash channel is closed, the tail end of the backwash channel is arranged downward, a dirt storage chamber is arranged at the tail end of the backwash channel, and the dirt storage chamber is arranged downward.

[0015] Preferably, the driving mechanism comprises a driving motor, the driving motor is located above the circulating pump body, a mounting base is provided on a side of the circulating pump body away from the driving motor, and a connecting rod is provided between the driving motor and the mounting base.

[0016] A method for using ice-making equipment uses the circulating water pump.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a circulating water pump and a method for using the ice-making device, which has the following beneficial effects:

[0019] 1. The circulating water pump drives the circulating pump body to pump water through a driving mechanism. Water flows into the circulating pump body from the water inlet and then flows into the cross-channel from the water outlet. During normal use, after the water flows through the main filter component in the load filtering mechanism, the main water outlet channel of the cross-channel provides clean water source for the ice-making equipment. When the main filter component is blocked after long-term use, the circulating pump body continuously pumps water into the cross-channel, causing the water pressure on the main filter component to gradually increase. When the water pressure is greater than the elastic force of the pressure switching component, the main filter component moves towards the load support member and compresses the load support member until the main filter component and the auxiliary filter component are completely staggered. After that, the auxiliary filter component loses the obstruction of the main filter component and moves towards the original position of the main filter component to replace the main filter component to filter the water flow. At the same time, the external water source connected to the main water outlet channel injects water into the main water outlet channel. After the water flow passes through the main filter component, it backwashes the impurities in the main filter component to clean the commonly used main filter component. Through the switching between the main filter component and the auxiliary filter component, during the process of the circulating water pump pumping water for the ice-making equipment, it can always be in the state of circulating water pumping, avoiding the blockage of the main filter component by the impurities in the circulating pump body and the water pipeline after the main filter component is used for a long time, which affects the operation of the ice-making equipment.

[0020] 2. For this circulating water pump, when the main filter component is blocked after long-term use, the circulating pump body continuously pumps water into the cross-channel, causing the water pressure on the main filter component to gradually increase. When the water pressure is greater than the elastic force of the pressure switching component, the main filter component moves towards the load support member and compresses the load support member until the main filter component and the auxiliary filter component are completely staggered. Then, the main filter core in the main filter component normally filters the water flow pumped by the circulating water pump during normal use to supply water to the ice-making equipment normally. When the main filter component is blocked, after the main filter component is subjected to excessive water pressure and moves towards the pressure switching component, the U-shaped frame is used to make the water flow only pass through the front end, the tail end and the side close to the backwash channel of the main filter core. During the movement of the main filter component, the guiding sliders on the periphery of the U-shaped frame cooperate with the guiding chutes on the periphery of the main water outlet channel, so that the main filter component will not tilt during movement.

[0021] 3. The circulating water pump is arranged closely with the auxiliary water outlet channel through one side of the auxiliary filter element, so that when the auxiliary filter component filters the water flow, the water flow will not flow out from the side wall of the auxiliary water outlet channel. After the main filter component completes backwashing and cleaning, the water pressure injected into the main water outlet channel is large enough to push the elastic push rod in the opposite direction. The water flow in the main water outlet channel presses the boost reset baffle in the cavity, so that the auxiliary filter component can be re-entered into the auxiliary water outlet channel. When the auxiliary filter component is completely retracted into the auxiliary water outlet channel, one end of the main filter component loses the obstruction of the auxiliary filter component and is supported by the load. Under the action of the support, the main filter assembly returns to the filter chamber again, and the switching baffle is close to the auxiliary filter assembly, the main filter assembly and the auxiliary filter assembly are parallel again, that is, the main filter assembly resumes filtering the water flow pumped by the circulating pump body; the backwash channel is connected to the main water outlet channel. After the main filter assembly is blocked, the external water source connected to the main water outlet channel is reversely injected into the main water outlet channel. After the reversely injected water reversely flushes the main filter element, it carries the impurities in the main filter element to flow into the backwash channel, and the impurities are deposited in the dirt storage chamber at the tail end of the backwash channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 This is one of the schematic cross-sectional structural diagrams of the cross channel portion of the present invention;

[0024] Figure 3 This is the second schematic diagram of the cross-channel section structure of the present invention;

[0025] Figure 4 This is one of the schematic diagrams of the internal cross-sectional structure of the load filtering mechanism of the present invention;

[0026] Figure 5 This is the second schematic diagram of the internal cross-sectional structure of the load filtering mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the internal cross-sectional plan view of the load filtering mechanism of the present invention;

[0028] Figure 7 This is one of the exploded structural schematic diagrams of the main filter assembly and the auxiliary filter assembly of the present invention;

[0029] Figure 8 This is the second schematic diagram of the explosion structure of the main filter assembly and the auxiliary filter assembly of the present invention.

[0030] In the figure: 1. Circulating pump body; 11. Installation base; 2. Driving mechanism; 21. Driving motor; 22. Connecting rod; 3. Water inlet; 4. Water outlet; 5. Load filtering mechanism; 51. Main filtering component; 511. Main filter element; 512. C-shaped frame; 513. Guide chute; 514. Guide slider; 52. Auxiliary filtering component; 521. Auxiliary filter element; 522. Sealing plate; 523. Elastic push rod; 53. Pressure switching component; 531. Load support; 532. Switching baffle; 533. Boosting and resetting baffle; 534. Load spring; 535. Sleeve; 536. Sleeve rod; 6. Cross channel; 61. Main water outlet channel; 62. Auxiliary water outlet channel; 63. Filter cavity; 64. Backwashing channel; 65. Cavity; 66. Sewage storage cavity. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1-8 , a circulating water pump, including a circulating pump body 1, the circulating pump body 1 is connected with a driving mechanism 2, water inlets 3 and water outlets 4 are respectively arranged on both sides of the circulating pump body 1, the water inlets 3 and the water outlets 4 are respectively communicated with the inner cavity of the circulating pump body 1, the other end of the water outlet 4 is provided with a load filtering mechanism 5 and a cross channel 6, the load filtering mechanism 5 is located inside the cross channel 6, the load filtering mechanism 5 includes a main filtering component 51, an auxiliary filtering component 52 and a pressure switching component 53, the main filtering component 51 is located at the tail end of the water outlet 4, the auxiliary filtering component 52 is located on one side of the main filtering component 51, the pressure switching component 53 is located between the main filtering component 51 and the auxiliary filtering component 52, the pressure switching component 53 includes a load support 531, a switching baffle 532 and a boosting and resetting baffle 533, the load support 531 is located at the tail end of the main filtering component 51, the switching baffle 532 is located on one side of the main filtering component 51, and the switching baffle 532 extends to one side and is on one side of the auxiliary filtering component 52, the boosting and resetting baffle 533 is located on the other side of the auxiliary filtering component 52, the cross channel 6 includes a main water outlet channel 61 and an auxiliary water outlet channel 62, the pressure switching component 53 is located inside the main water outlet channel 61, the main water outlet channel 61 is communicated with the tail end of the main filtering component 51, and the auxiliary filtering component 52 is located in the auxiliary water outlet channel 62.

[0033] During specific use, the main water outlet channel 61 is connected to the backwash water injection port. When the main filter assembly 51 needs to be cleaned, the backwash water injection port is connected to other water sources to reversely inject water into the main water outlet channel 61 so that the water flows through the main filter assembly 51 in the reverse direction.

[0034] When in use, the circulation pump body 1 is driven by the driving mechanism 2 to pump water. The water flows into the circulation pump body 1 from the water inlet 3 and then flows into the cross channel 6 from the water outlet 4. In normal use, the water flows through the main filter assembly 51 in the load filter mechanism 5 and is filtered. Then, the main water outlet channel 61 of the cross channel 6 provides a clean water source for the ice-making equipment. When the main filter assembly 51 is blocked after long-term use, the circulation pump body 1 continues to pump water into the cross channel 6, so that the water pressure on the main filter assembly 51 gradually increases. When the water pressure is greater than the elastic force of the pressure switching assembly 53, the main filter assembly 51 moves toward the load support member 531 and compresses the load support member 531 until the main filter assembly 51 and the auxiliary filter assembly 52 are completely staggered. The filter component 52 loses the obstruction of the main filter component 51, and the auxiliary filter component 52 moves to the original position of the main filter component 51, and replaces the main filter component 51 to filter the water flow. At the same time, the external water source connected to the main water outlet channel 61 injects water into the main water outlet channel 61. After the water flows through the main filter component 51, the impurities in the main filter component 51 are backwashed, and the commonly used main filter component 51 is cleaned. By switching the main filter component 51 and the auxiliary filter component 52, the circulating pump body 1 can be in a circulating water pumping state during the process of pumping water for the ice-making equipment, so as to avoid the main filter component 51 being blocked by impurities in the circulating pump body 1 and the water pipeline after the main filter component 51 is used for a long time, thereby affecting the operation of the ice-making equipment.

[0035] Furthermore, the cross channel 6 also includes a filter cavity 63 and a backwashing channel 64, the filter cavity 63 is connected to the tail end of the water outlet 4, the main filter component 51 is located inside the filter cavity 63, the main water outlet channel 61 is located at the tail of the filter cavity 63, the backwashing channel 64 is located on one side of the main water outlet channel 61, and the auxiliary water outlet channel 62 is located on the other side of the filter cavity 63; through the filter cavity 63 of the cross channel 6, when switching between the main filter component 51 and the auxiliary filter component 52, the main filter component 51 or the auxiliary filter component 52 is located at the tail end of the filter cavity 63 to filter the water flow, and when the auxiliary filter component 52 is used to filter the water flow, the filtered water flow enters the auxiliary water outlet channel 62 to supply water to the ice-making equipment, and when the main filter component 51 is backwashed and cleaned, the water flow that passes through the main filter component 51 in the reverse direction carries impurities into the backwashing channel 64.

[0036] Further, the main filtration component 51 includes a main filter element 511, a U-shaped frame 512, and a guiding chute 513. The main filter element 511 is located inside the filtration cavity 63, the U-shaped frame 512 is located outside the main filter element 511, and the opening on the side of the U-shaped frame 512 is arranged facing the backwashing channel 64. The front end and the tail end of the main filter element 511 are respectively communicated with the filtration cavity 63 and the main water outlet channel 61. The guiding chute 513 is located on the peripheral side of the inner cavity of the main water outlet channel 61. A guiding slider 514 is arranged on the periphery of the U-shaped frame 512, and the guiding slider 514 is slidably matched with the guiding chute 513. The main filter element 511 in the main filtration component 51 filters the water flow pumped by the circulating pump body 1 during normal use to supply water to the ice-making equipment normally. When the main filtration component 51 is blocked and the main filtration component 51 is under excessive water pressure and moves towards the pressure switching component 53, by using the U-shaped frame 512, the water flow can only pass through the front end, the tail end of the main filter element 511 and the side close to the backwashing channel 64. When the main filtration component 51 moves, the guiding slider 514 on the periphery of the U-shaped frame 512 cooperates with the guiding chute 513 on the periphery of the main water outlet channel 61, so that the main filtration component 51 will not tilt when moving.

[0037] Further, the auxiliary filtration component 52 includes an auxiliary filter element 521, a closing plate 522, and an elastic push rod 523. The auxiliary filter element 521 is located inside the auxiliary water outlet channel 62, the elastic push rod 523 is located between the auxiliary filter element 521 and the auxiliary water outlet channel 62. The auxiliary filter element 521 is of a cube structure. Two of the sides of the auxiliary filter element 521 are respectively communicated with the filtration cavity 63 and the auxiliary water outlet channel 62, and the other four sides of the auxiliary filter element 521 are respectively provided with the closing plates 522. Through the auxiliary filter element 521 in the auxiliary filtration component 52, when the main filtration component 51 is blocked and the main filtration component 51 and the auxiliary filtration component 52 are completely staggered, the elastic push rod 523 pushes out the auxiliary filtration component 52 and pushes the auxiliary filtration component 52 into the filtration cavity 63 to filter the water flow pumped by the circulating pump body 1, so that the circulating pump body 1 can continuously provide clean water source for the ice-making equipment. When the auxiliary filtration component 52 filters the water flow, the other four sides except the sides communicated with the filtration cavity 63 and the auxiliary water outlet channel 62 are blocked, so as to avoid the water flow flowing out through these four sides when the auxiliary filtration component 52 filters the water flow, that is, the water flow passing through the auxiliary filter element 521 can only flow in from one side of the filtration cavity 63 and flow out from one side of the auxiliary water outlet channel 62.

[0038] Further, one side of the auxiliary filter element 521 close to the filter cavity 63 is tightly arranged against the auxiliary water outlet channel 62. A cavity 65 is arranged between the closed plate 522 arranged on the other side of the auxiliary filter element 521 and the side wall of the auxiliary water outlet channel 62. The pressurizing and resetting baffle 533 is located in the cavity 65. One end of the pressurizing and resetting baffle 533 is connected to the closed plate 522, and the other end of the pressurizing and resetting baffle 533 is tightly against the side wall of the auxiliary water outlet channel 62. The cavity 65 is communicated with the main water outlet channel 61. By arranging one side of the auxiliary filter element 521 tightly against the auxiliary water outlet channel 62, when the auxiliary filter assembly 52 filters the water flow, the water flow will not flow out from the side wall of the auxiliary water outlet channel 62. After the main filter assembly 51 completes the backwashing and cleaning, when the water pressure injected reversely into the main water outlet channel 61 is large enough to push the elastic push rod 523 reversely, the water flow in the main water outlet channel 61 presses the pressurizing and resetting baffle 533 in the cavity 65, so that the auxiliary filter assembly 52 can be retracted into the auxiliary water outlet channel 62 again. When the auxiliary filter assembly 52 is completely retracted into the auxiliary water outlet channel 62, one end of the main filter assembly 51 loses the obstruction of the auxiliary filter assembly 52, and under the action of the load support member 531, the main filter assembly 51 returns to the filter cavity 63 again, and the switching baffle 532 is tightly against the auxiliary filter assembly 52, and the main filter assembly 51 and the auxiliary filter assembly 52 are juxtaposed again, that is, the main filter assembly 51 resumes filtering the water flow pumped by the circulating pump body 1.

[0039] Further, the main filter assembly 51 and the auxiliary filter assembly 52 are arranged side by side. The backwashing channel 64 and the auxiliary water outlet channel 62 are respectively located on both sides of the filter cavity 63, and the backwashing channel 64 and the auxiliary water outlet channel 62 are arranged in a staggered manner. When the main filter assembly 51 is blocked, the main filter assembly 51 pushes the pressure switching assembly 53 to move into the main water outlet channel 61. After the main filter assembly 51 and the auxiliary filter assembly 52 are staggered, the auxiliary filter assembly 52 extends into the filter cavity 63, and one side of the main filter assembly 51 faces the backwashing channel 64. When the main filter assembly 51 and the auxiliary filter assembly 52 are arranged side by side, the water flow can only be filtered by the main filter assembly 51, and the opening on one side of the U-shaped frame 512 outside the main filter element 511 is closed with the side wall of the filter cavity 63, and the water flow can only pass through the front end and the tail end of the main filter element 511 for filtering, and the water flow will not flow in the directions of the backwashing channel 64 and the auxiliary water outlet channel 62.

[0040] Further, the pressure switching component 53 further includes a load spring 534 sleeved outside the load support 531. The load support 531 is composed of a sleeve 535 and a sleeve rod 536. Both ends of the load spring 534 are respectively located on the sleeve 535 and the sleeve rod 536. One end of the sleeve 535 is connected to the side of the main filter component 51. The sleeve 535 and the sleeve rod 536 are sleeved. The other end of the sleeve rod 536 is connected to the side wall of the main water outlet channel 61 through a support rod. The load spring 534 in the pressure switching component 53 provides a supporting force to support the main filter component 51, and the switching baffle 532 on one side of the U-shaped frame 512 cooperates with the auxiliary filter component 52 to make the main filter component 51 in a relatively stable state, and filter the water flow pumped by the circulating pump body 1, wherein the sleeve 535 and the sleeve rod 536 stably guide the load spring 534.

[0041] Further, the backwash channel 64 is communicated with the main water outlet channel 61. The tail end of the backwash channel 64 is closed. The tail end of the backwash channel 64 is arranged downward. A sewage storage cavity 66 is arranged at the tail end of the backwash channel 64. The sewage storage cavity 66 is arranged downward. By communicating the backwash channel 64 with the main water outlet channel 61, after the main filter component 51 is blocked, the external water source connected to the main water outlet channel 61 injects water reversely into the main water outlet channel 61. After the reversely injected water reversely flushes the main filter element 511, it carries the impurities in the main filter element 511 and flows into the backwash channel 64, and deposits the impurities in the sewage storage cavity 66 at the tail end of the backwash channel 64.

[0042] Further, the driving mechanism 2 includes a driving motor 21 located above the circulating pump body 1. An installation base 11 is arranged on the side of the circulating pump body 1 away from the driving motor 21. A connecting rod 22 is arranged between the driving motor 21 and the installation base 11.

[0043] A usage method for ice-making equipment uses the above-mentioned circulating water pump.

[0044] Working principle: The driving mechanism 2 drives the circulating pump body 1 to pump water. Water flows into the circulating pump body 1 from the water inlet 3 and then flows into the cross channel 6 from the water outlet 4. During normal use, after the water flow is filtered by the main filter component 51 in the load filtering mechanism 5, the main water outlet channel 61 of the cross channel 6 provides clean water source for the ice-making equipment. Through the filtering cavity 63 of the cross channel 6, when switching between the main filter component 51 and the auxiliary filter component 52, both the main filter component 51 or the auxiliary filter component 52 are located at the end of the filtering cavity 63 to filter the water flow. When using the auxiliary filter component 52 to filter the water flow, the filtered water flow enters the auxiliary water outlet channel 62 to supply water for the ice-making equipment. When backwashing and cleaning the main filter component 51, the water flow reversely passing through the main filter component 51 carries impurities into the backwashing channel 64;

[0045] When the main filter component 51 is blocked after long-term use, the circulating pump body 1 continuously pumps water into the cross channel 6, so that the water pressure on the main filter component 51 gradually increases. When the water pressure is greater than the elastic force of the pressure switching component 53, the main filter component 51 moves towards the load support 531 and compresses the load support 531 until the main filter component 51 is completely staggered from the auxiliary filter component 52. Then, the main filter core 511 in the main filter component 51 filters the water flow pumped by the circulating pump body 1 during normal use to supply water to the ice-making equipment normally. When the main filter component 51 is blocked, after the main filter component 51 is subjected to excessive water pressure and moves towards the pressure switching component 53, by using the U-shaped frame 512, the water flow can only pass through the front end, the tail end and the side close to the backwashing channel 64 of the main filter core 511. When the main filter component 51 moves, the guiding slider 514 on the periphery of the U-shaped frame 512 cooperates with the guiding chute 513 on the periphery of the main water outlet channel 61, so that the main filter component 51 will not tilt during movement;

[0046] When the auxiliary filter component 52 is no longer blocked by the main filter component 51, the auxiliary filter component 52 moves towards the original position of the main filter component 51 and replaces the main filter component 51 to filter the water flow. Through the auxiliary filter core 521 in the auxiliary filter component 52, when the main filter component 51 is blocked and the main filter component 51 is completely staggered from the auxiliary filter component 52, the elastic push rod 523 pushes out the auxiliary filter component 52 and pushes the auxiliary filter component 52 into the filtering cavity 63 to filter the water flow pumped by the circulating pump body 1, so that the circulating pump body 1 can continuously provide clean water source for the ice-making equipment. When the auxiliary filter component 52 filters the water flow, the other four sides except the sides where the filtering cavity 63 and the auxiliary water outlet channel 62 are connected are blocked, so as to prevent the water flow from flowing out through these four sides when the auxiliary filter component 52 filters the water flow, that is, the water flow passing through the auxiliary filter core 521 can only flow in from one side of the filtering cavity 63 and flow out from one side of the auxiliary water outlet channel 62;

[0047] Meanwhile, the external water source connected to the main water outlet channel 61 injects water into the main water outlet channel 61. After the water flow passes through the main filtration component 51, the impurities in the main filtration component 51 are backwashed, and the common main filtration component 51 is cleaned. By switching between the main filtration component 51 and the auxiliary filtration component 52, during the process of the circulation pump body 1 pumping water for the ice-making equipment, it can always be in the state of circulating water pumping, avoiding the blockage of the main filtration component 51 by the impurities in the circulation pump body 1 and the water pipeline after the main filtration component 51 is used for a long time, which affects the operation of the ice-making equipment;

[0048] Since one side of the auxiliary filter element 521 is closely arranged with the auxiliary water outlet channel 62, when the auxiliary filtration component 52 filters the water flow, the water flow will not flow out from the side wall of the auxiliary water outlet channel 62. After the main filtration component 51 completes the backwashing and cleaning, when the water pressure in the main water outlet channel 61 injected reversely is large enough to push the elastic push rod 523 reversely, the water flow in the main water outlet channel 61 presses on the pressure-increasing reset baffle 533 in the cavity 65, so that the auxiliary filtration component 52 can be retracted into the auxiliary water outlet channel 62 again. When the auxiliary filtration component 52 is completely retracted into the auxiliary water outlet channel 62, one end of the main filtration component 51 loses the obstruction of the auxiliary filtration component 52, and under the action of the load support member 531, the main filtration component 51 returns to the filtration cavity 63 again, and the switching baffle 532 is closely attached to the auxiliary filtration component 52, and the main filtration component 51 and the auxiliary filtration component 52 are juxtaposed again, that is, the main filtration component 51 resumes filtering the water flow pumped by the circulation pump body 1; Since the backwashing channel 64 is communicated with the main water outlet channel 61, after the main filtration component 51 is blocked, the external water source connected to the main water outlet channel 61 injects water reversely into the main water outlet channel 61. After the reversely injected water backwashes the main filter element 511, it carries the impurities in the main filter element 511 and flows into the backwashing channel 64, and deposits the impurities in the sewage storage cavity 66 at the tail end of the backwashing channel 64;

[0049] Among them, when the main filtration component 51 and the auxiliary filtration component 52 are arranged side by side, the water flow can only be filtered through the main filtration component 51, and the opening on one side of the U-shaped frame 512 outside the main filter element 511 is closed with the side wall of the filtration cavity 63, and the water flow can only pass through the front end and the tail end of the main filter element 511 for filtration, and the water flow will not flow in the directions of the backwashing channel 64 and the auxiliary water outlet channel 62.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating water pump, comprising a circulating pump body, wherein the circulating pump body is connected to a driving mechanism, and characterized in that: On both sides of the circulating pump body, a water inlet and a water outlet are respectively arranged. The water inlet and the water outlet are respectively communicated with the inner cavity of the circulating pump body. At the other end of the water outlet, a load filtering mechanism and a cross channel are arranged. The load filtering mechanism is located inside the cross channel. The load filtering mechanism includes a main filtering component, an auxiliary filtering component and a pressure switching component. The main filtering component is located at the end of the water outlet. The auxiliary filtering component is located on one side of the main filtering component. The pressure switching component is located between the main filtering component and the auxiliary filtering component. The pressure switching component includes a load support, a switching baffle and a boosting and resetting baffle. The load support is located at the end of the main filtering component. The switching baffle is located on one side of the main filtering component, and the switching baffle extends to one side and is on one side of the auxiliary filtering component. The boosting and resetting baffle is located on the other side of the auxiliary filtering component. The cross channel includes a main water outlet channel and an auxiliary water outlet channel. The pressure switching component is located inside the main water outlet channel. The main water outlet channel is communicated with the end of the main filtering component. The auxiliary filtering component is located in the auxiliary water outlet channel; The cross channel further includes a filtering cavity and a backwashing channel. The filtering cavity is connected to the end of the water outlet. The main filtering component is located inside the filtering cavity. The main water outlet channel is located at the tail of the filtering cavity. The backwashing channel is located on one side surface of the main water outlet channel. The auxiliary water outlet channel is located on the other side surface of the filtering cavity; The main filtering component includes a main filter core, a U-shaped frame and a guiding chute. The main filter core is located inside the filtering cavity. The U-shaped frame is located outside the main filter core. The opening on the side surface of the U-shaped frame is arranged facing the backwashing channel. The front end and the tail end of the main filter core are respectively communicated with the filtering cavity and the main water outlet channel. The guiding chute is located on the peripheral side of the inner cavity of the main water outlet channel. Guide sliders are arranged on the periphery of the U-shaped frame, and the guide sliders are slidably matched with the guiding chute; The auxiliary filtering component includes an auxiliary filter core, a closing plate and an elastic push rod; the auxiliary filter core is located inside the auxiliary water outlet channel. The elastic push rod is located between the auxiliary filter core and the auxiliary water outlet channel. The auxiliary filter core is of a cube structure. Two of the four sides of the auxiliary filter core are respectively communicated with the filtering cavity and the auxiliary water outlet channel. The other four sides of the auxiliary filter core are respectively provided with the closing plates.

2. A circulating water pump according to claim 1, characterized in that: One side of the auxiliary filter core close to the filtering cavity is closely attached to the auxiliary water outlet channel. A cavity is arranged between the closing plate arranged on the other side of the auxiliary filter core and the side wall of the auxiliary water outlet channel. The boosting and resetting baffle is located in the cavity, and one end of the boosting and resetting baffle is connected to the closing plate, and the other end of the boosting and resetting baffle is closely attached to the side wall of the auxiliary water outlet channel. The cavity is communicated with the main water outlet channel.

3. A circulating water pump according to claim 2, characterized in that: The main filter assembly and the auxiliary filter assembly are arranged side by side, the backwash channel and the auxiliary water outlet channel are respectively located on both sides of the filter cavity, and the backwash channel and the auxiliary water outlet channel are staggered. When the main filter assembly is blocked, the main filter assembly pushes the pressure switching assembly to move into the main water outlet channel. After the main filter assembly and the auxiliary filter assembly are staggered, the auxiliary filter assembly extends into the filter cavity, and one side of the main filter assembly faces the backwash channel.

4. A circulating water pump according to claim 1, characterized in that: The pressure switching assembly also includes a load spring, which is sleeved on the outside of the load support member. The load support member is composed of a sleeve and a sleeve rod. Both ends of the load spring are respectively located on the sleeve and the sleeve rod. One end of the sleeve is connected to the side of the main filter assembly, and the sleeve is sleeved on the sleeve rod. The other end of the sleeve rod is connected to the side wall of the main water outlet channel through a support rod.

5. A circulating water pump according to claim 1, characterized in that: The backwash channel is communicated with the main water outlet channel, the tail end of the backwash channel is closed, the tail end of the backwash channel is downwardly arranged, a dirt storage chamber is arranged at the tail end of the backwash channel, and the dirt storage chamber is downwardly arranged.

6. A circulating water pump according to claim 1, characterized in that: The driving mechanism comprises a driving motor, and the driving motor is located above the circulating pump body. A mounting base is arranged on a side of the circulating pump body away from the driving motor, and a connecting rod is arranged between the driving motor and the mounting base.

7. A method for using an ice-making device, characterized in that: A circulating water pump as described in any one of claims 1 to 6 is used.

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