Stainless steel water tank

Abstract

The stainless steel water tank comprises a tank body, a rotating rod assembly, a motor assembly, a biological filtration assembly, a sieve plate, a transmission mechanism, a lifting assembly and a limiting assembly, the rotating rod assembly is rotatably arranged in the box body in a penetrating manner, and the motor is arranged on the box body and can drive the rotating rod assembly to rotate; the biological filtering assembly is arranged on the rotating rod assembly in a lifting manner and has elasticity; the sieve plate is arranged in the box body, the transmission mechanism and the limiting assembly are rotationally arranged on the sieve plate, the transmission mechanism can intermittently rotate reversely through forward rotation of the rotating rod assembly, and the limiting assembly can limit forward rotation of the transmission mechanism; the lifting assembly is arranged on the sieve plate in a liftable manner, the lifting assembly can extrude the rotating biological filtration assembly after being lifted, so that the biological filtration assembly is lifted, and the lifting assembly can be lifted through rotation of the transmission mechanism. According to the stainless steel water tank, the microorganism filter screen can be intermittently lifted, so that water flow can wash the microorganism filter screen up and down, and substances condensed on the microorganism filter screen are easier to fall off.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection equipment, and in particular relates to a stainless steel water tank. Background Art

[0002] At present, in many water-scarce areas, it is very difficult to drink domestic water. The available water contains mud and impurities and cannot be used directly as domestic water. In domestic water use, such as washing crops, a lot of sewage will be generated, and these sewage generally contain particulate sediments and various pesticide residues. If these sewage are discharged directly, it will cause great pollution to the environment.

[0003] To this end, relevant technical personnel have proposed a water tank as shown in CN209161764U, which adsorbs impurities in the water tank to a certain extent through the rotation of the microbial filter net, and flushes the microbial filter net to a certain extent through the rotating running water in the water tank, thereby flushing away the condensed substances on the microbial filter net. However, the flushing direction of the running water is fixed, so that the flushing effect of the condensed substances on the microbial filter net is still poor. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a stainless steel water tank to solve the problem that the direction of water flushing on the biological filter mentioned in the background technology is fixed, so that the flushing effect of the condensed substances on the microbial filter is still poor. In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention includes: A stainless steel water tank, comprising a tank body, a rotating rod assembly, a motor assembly, a biological filtration assembly, a sieve plate, a transmission mechanism, a lifting assembly and a limiting assembly; The rotating rod assembly is rotatably arranged in the box body, and the motor is arranged on the box body and can drive the rotating rod assembly to rotate; The biological filtration component is movably mounted on the rotating rod component and is elastic; the sieve plate is disposed in the box body, the transmission mechanism and the limiting component are rotatably mounted on the sieve plate respectively, the forward rotation of the rotating rod component can cause the transmission mechanism to intermittently reverse, and the limiting component can limit the forward rotation of the transmission mechanism; The lifting component can be lifted and lowered on the screen plate. After being lifted, the lifting component can squeeze the rotating biological filter component to lift the biological filter component. The rotation of the transmission mechanism can lift the lifting component.

[0005] Furthermore, the transmission mechanism includes a transmission gear, a transmission internal gear ring and an extrusion assembly; the transmission gear, the transmission internal gear ring and the extrusion assembly are respectively rotatably connected to the screen plate; the forward rotation of the rotating rod assembly can drive the transmission gear to reverse, the transmission gear and the transmission internal gear ring are meshed, a plurality of gear teeth are provided on the outer side of the transmission internal gear ring to form an incomplete gear ring, the transmission internal gear ring can intermittently drive the extrusion assembly to rotate, the rotation of the extrusion assembly can lift the lifting assembly, and the limiting assembly can limit the reversal of the extrusion assembly.

[0006] Furthermore, the extrusion assembly includes an incomplete internal gear ring and an extrusion wedge; the incomplete internal gear ring is rotatably connected to the screen plate and can engage with the transmission internal gear ring; a plurality of ratchets are circumferentially fixed to the outer side of the incomplete internal gear ring, and the limiting assembly can limit the forward rotation of the incomplete internal gear ring through the ratchets; the extrusion wedge is fixed on the incomplete internal gear ring, and can squeeze the lifting assembly as the incomplete internal gear ring rotates, so that the lifting assembly is lifted.

[0007] Furthermore, the lifting assembly includes a fixed plate and a first lifting wedge; the fixed plate is fixed on the screen plate, the first lifting wedge is slidably connected to the fixed plate and can be raised and lowered, the extrusion wedge can squeeze the first lifting wedge to lift the first lifting wedge, and the first lifting wedge can squeeze the biological filtration assembly to lift the biological filtration assembly.

[0008] Furthermore, the limiting assembly includes a pawl, a supporting spring and a fixing rod; the pawl is rotatably connected to the screen plate and is connected to the fixing rod through the supporting spring, and the fixing rod is fixed to the screen plate.

[0009] Furthermore, the rotating rod assembly includes a driving rotating rod and a driving gear; the driving rotating rod is rotatably inserted into the box body, and the motor assembly can drive the driving rotating rod to rotate; a slide groove is axially provided on the driving rotating rod, and the biological filtration assembly can be slidably connected in the slide groove in a liftable manner; the driving gear is coaxially fixed on the driving rotating rod and meshes with the transmission gear.

[0010] Furthermore, the biological filtration assembly includes a biological filtration clamp, a microbial filter screen and a connecting spring; the biological filtration clamp is slidably connected in the slide groove and clamps the microbial filter screen, and the biological filtration clamp is connected to the slide groove through the connecting spring.

[0011] Furthermore, a lower water outlet pipe, a water outlet filter assembly, a second lifting wedge block and a connecting plate are also provided at the bottom of the box body; the water outlet filter assembly is rotatably inserted into the bottom of the box body, the motor assembly can drive the water outlet filter assembly to rotate, the water outlet filter assembly abuts against the top surface of the lower water outlet pipe, the second lifting wedge block is liftably provided on the bottom surface of the box body, and is connected to the first lifting wedge block through the connecting plate, and when the second lifting wedge block is lifted, the water outlet filter assembly can be lifted and lowered during rotation.

[0012] Furthermore, the water outlet filter assembly includes a water outlet filter shaft, a water outlet connecting rod, an external frame, a water outlet spring and a water outlet filter; the water outlet filter shaft is rotatably penetrated through the floor of the box body, and the motor assembly can drive the water outlet filter shaft to rotate; one end of the water outlet connecting rod is slidably connected to the water outlet filter shaft and is connected to the water outlet filter shaft through the water outlet spring, and the other end of the water outlet connecting rod is slidably connected to the external frame and is connected to the external frame through the water outlet spring; the water outlet filter is provided between two adjacent water outlet connecting rods, and the second lifting wedge block can squeeze and lift the water outlet connecting rod after being lifted.

[0013] Furthermore, the motor assembly includes a mounting plate, a driving motor and a connecting belt; the mounting plate is fixed on the box body, the driving motor is arranged on the mounting plate, and can drive the driving rotating rod to rotate, and the connecting belt tightly protects the driving rotating rod and the water outlet filter shaft.

[0014] Compared with the prior art, the advantages of the present invention include: In the present application, the biological filter assembly can be lifted and lowered during the rotation process by lifting the lifting assembly. In addition to vertically impacting the condensed sheet or film-like material on the biological filter assembly, the rotating water flow can also wash the biological filter assembly up and down during the lifting and lowering of the biological filter assembly, so that the condensed sheet or film-like material can fall off better. In addition, the transmission mechanism rotates intermittently, causing the lifting assembly to be lifted intermittently, and then causing the biological filtration assembly to be lifted and lowered intermittently, thereby avoiding excessive noise caused by continuous lifting and lowering. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1It is an overall schematic diagram of a stainless steel water tank in the present invention; Figure 2 for Figure 1 A cross-sectional view of the stainless steel water tank shown; Figure 3 for Figure 2 An enlarged schematic diagram of part A; Figure 4 for Figure 1 A schematic cross-sectional view of a stainless steel water tank is shown.

[0017] Reference numerals: Box body 1, lower water outlet pipe 10, rotating rod assembly 2, driving rotating rod 21, slide groove 211, driving gear 22, motor assembly 3, mounting plate 31, driving motor 32, connecting belt 33, biological filtration assembly 4, biological filtration splint 41, microbial filter screen 42, connecting spring 43, sieve plate 5, transmission mechanism 6, transmission gear 61, transmission inner gear ring 62, extrusion assembly 63, incomplete inner gear ring 631, extrusion wedge 632, lifting assembly 7, fixing plate 71, first lifting wedge 72, limiting assembly 8, pawl 81, supporting spring 82, fixing rod 83, water outlet filter assembly 9, water outlet filter shaft 91, water outlet connecting rod 92, external frame 93, water outlet spring 94, water outlet filter screen 95, second lifting wedge 11, connecting plate 12. DETAILED DESCRIPTION

[0018] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principle, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0019] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, the present invention covers any substitution, modification, equivalent method and scheme made on the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "an" and other similar words do not indicate a quantity limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0021] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application 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 application. In addition, when positional terms such as both sides, outside, up and down are used, it should be understood that they are only used to facilitate understanding and description, considering that the structure may be facing other positions.

[0022] In the description of this application, unless otherwise clearly specified and limited, the technical or scientific terms used should have the usual meanings understood by persons with general skills in the field to which this application belongs. Terms such as "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] The embodiments of the present invention are intended to introduce and illustrate the structural composition of a stainless steel water tank and the coordination relationship between the various components. Unless otherwise specified, the dimensions, materials and manufacturing processes of the various components in the stainless steel water tank in the embodiments of the present invention can be selected according to specific circumstances and are not specifically limited or described herein.

[0024] Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. For those skilled in the art, the present invention can be fully understood without the description of these details.

[0025] Please also read Figure 1-Figure 4, this embodiment provides a stainless steel water tank, including a tank body 1, a rotating rod assembly 2, a motor assembly 3, a biological filtration assembly 4, a sieve plate 5, a transmission mechanism 6, a lifting assembly 7 and a limiting assembly 8; The rotating rod assembly 2 is rotatably inserted into the box body 1, and the motor is arranged on the box body 1 and can drive the rotating rod assembly 2 to rotate; it should be understood that the box body 1 is made of stainless steel and can have good durability; the motor assembly 3 is preferably arranged at the bottom of the box body 1 and connected to the end of the rotating rod assembly 2 through a coupling.

[0026] The biological filter assembly 4 can be lifted and lowered on the rotating rod assembly 2 and has elasticity; specifically, the biological filter assembly 4 can be lifted and lowered along the axial direction of the rotating rod assembly 2 and can be reset by its own elasticity, and the biological filter assembly 4 rotates with the rotation of the rotating rod assembly 2. The sieve plate 5 is arranged in the box body 1, and the transmission mechanism 6 and the limiting assembly 8 are rotatably arranged on the sieve plate 5 respectively. The forward rotation of the rotating rod assembly 2 can make the transmission mechanism 6 intermittently reverse, and the limiting assembly 8 can limit the forward rotation of the transmission mechanism 6; that is, the clockwise rotation of the rotating rod assembly 2 drives the transmission mechanism 6 to rotate counterclockwise intermittently, and the limiting assembly 8 limits the transmission mechanism 6 to rotate clockwise, or the counterclockwise rotation of the rotating rod assembly 2 drives the transmission mechanism 6 to rotate clockwise intermittently, and the limiting assembly 8 limits the transmission mechanism 6 to rotate counterclockwise. It should also be understood that water can pass through the sieve plate 5.

[0027] The lifting assembly 7 is movably disposed on the sieve plate 5. After the lifting assembly 7 is lifted, it can squeeze the rotating biological filter assembly 4, so that the biological filter assembly 4 is lifted, and the rotation of the transmission mechanism 6 can lift the lifting assembly 7. It should be understood that the positive rotation of the biological filter assembly 4 squeezes the lifting assembly 7, and then squeezes the transmission mechanism 6, so that the transmission mechanism 6 has a tendency to rotate positively, and the limiting assembly 8 can limit the positive rotation of the transmission mechanism 6, so that the transmission mechanism 6 keeps its position and is not rotated by the rotation of the biological filter assembly 4; and because the transmission mechanism 6 rotates intermittently, the lifting assembly is intermittently lifted.

[0028] In the present application, the lifting assembly 7 is lifted so that the biological filter assembly 4 can be lifted and lowered during the rotation process. In addition to vertically impacting the condensed sheet or film-like material on the biological filter assembly 4, the rotating water flow can also wash the biological filter assembly 4 up and down when the biological filter assembly 4 is lifted and lowered, so that the condensed sheet or film-like material can fall off better. In addition, the transmission mechanism 6 rotates intermittently, so that the lifting component 7 is lifted intermittently, and then the biological filtration component 4 is lifted and lowered intermittently, avoiding excessive noise caused by continuous lifting and lowering.

[0029] In other schemes, the transmission mechanism 6 includes a transmission gear 61, a transmission inner gear ring 62 and an extrusion assembly 63; the transmission gear 61, the transmission inner gear ring 62 and the extrusion assembly 63 are respectively rotatably connected to the screen plate 5; the forward rotation of the rotating rod assembly 2 can drive the transmission gear 61 to reverse, the transmission gear 61 and the transmission inner gear ring 62 are meshed, the outer side of the transmission inner gear ring 62 is provided with a plurality of gear teeth to form an incomplete gear ring, the transmission inner gear ring 62 can intermittently drive the extrusion assembly 63 to rotate, the rotation of the extrusion assembly 63 can lift the lifting assembly 7, and the limiting assembly 8 can limit the extrusion assembly 63 from reversing. It should be understood that the rotating rod assembly 2, the transmission inner gear ring 62 and the extrusion assembly 63 are coaxially arranged, and the transmission gear 61 is arranged between the rotating rod assembly 2 and the transmission inner gear ring 62.

[0030] In other schemes, the extrusion assembly 63 includes an incomplete inner gear ring 631 and an extrusion wedge 632; the incomplete inner gear ring 631 is rotatably connected to the screen plate 5 and can mesh with the transmission inner gear ring 62; a plurality of ratchets are fixedly arranged on the outer side of the incomplete inner gear ring 631 in the circumferential direction, and the limiting assembly 8 can limit the positive rotation of the incomplete inner gear ring 631 through the ratchets; the extrusion wedge 632 is fixedly arranged on the incomplete inner gear ring 631, and can extrude the lifting assembly 7 with the rotation of the incomplete inner gear ring 631, so that the lifting assembly 7 is lifted. It should be understood that after the extrusion wedge 632 leaves the lifting assembly 7, the lifting assembly 7 can fall under its own gravity.

[0031] In other schemes, the lifting assembly 7 includes a fixed plate 71 and a first lifting wedge 72; the fixed plate 71 is fixed on the screen plate 5, the first lifting wedge 72 is slidably connected to the fixed plate 71 in a lifting manner, the squeezing wedge 632 can squeeze the first lifting wedge 72 to lift the first lifting wedge 72, and the first lifting wedge 72 can squeeze the biofilter assembly 4 to lift the biofilter assembly 4. Specifically, the first lifting wedge 72 is provided with a groove near the squeezing wedge 632, and the inclined surface of the squeezing wedge 632 squeezes the inner top surface of the groove to lift the first lifting wedge 72.

[0032] In other embodiments, the limiting assembly 8 includes a pawl 81, a support spring 82 and a fixing rod 83; the pawl 81 is rotatably connected to the screen plate 5, and is connected to the fixing rod 83 through the support spring 82, and the fixing rod 83 is fixed to the screen plate 5. It should be understood that the pawl 81 can limit the forward rotation of the incomplete inner tooth ring 631 by abutting against the ratchet teeth.

[0033] In other schemes, the rotating rod assembly 2 includes a driving rotating rod 21 and a driving gear 22; the driving rotating rod 21 is rotatably installed on the housing 1, and the motor assembly 3 can drive the driving rotating rod 21 to rotate; the driving rotating rod 21 is axially provided with a slide groove 211, and the biological filter assembly 4 can be lifted and slidably connected in the slide groove 211; the driving gear 22 is coaxially fixed on the driving rotating rod 21 and meshes with the transmission gear 61. It should be understood that a waterproof pad is provided between the driving rotating rod 21 and the housing 1, and the slide groove 211 corresponds to the biological filter assembly 4 one by one.

[0034] In other embodiments, the biological filtration assembly 4 includes a biological filtration clamp 41, a microbial filter screen 42, and a connecting spring 43; the biological filtration clamp 41 is slidably connected to the slide groove 211 and clamps the microbial filter screen 42, and the biological filtration clamp 41 is connected to the slide groove 211 through the connecting spring 43. Preferably, the upper and lower sides of the biological filtration clamp 41 are connected to the upper and lower sides of the slide groove 211 through the connecting spring 43.

[0035] In other schemes, the bottom of the box body 1 is also provided with a lower water outlet pipe 10, a water outlet filter assembly 9, a second lifting wedge 11 and a connecting plate 12; the water outlet filter assembly 9 is rotatably arranged on the bottom of the box body 1, the motor assembly 3 can drive the water outlet filter assembly 9 to rotate, the water outlet filter assembly 9 abuts the top surface of the lower water outlet pipe 10, the second lifting wedge 11 is slidably arranged on the bottom surface of the box body 1, and is connected to the first lifting wedge 72 through the connecting plate 12. After the second lifting wedge 11 is lifted, the water outlet filter assembly 9 can be lifted and lowered when rotating. That is, through the second lifting wedge 11 after lifting, the water outlet filter assembly 9 can shake off a part of the impurities through the vibration of lifting and lowering, thereby reducing accumulation. Preferably, an inner concave plate is provided at the bottom of the box body 1, and the second lifting wedge 11 is slidably connected to the high inner concave plate.

[0036] In other schemes, the water outlet filter assembly 9 includes a water outlet filter shaft 91, a water outlet connecting rod 92, an external frame 93, a water outlet spring 94 and a water outlet filter screen 95; the water outlet filter shaft 91 is rotatably installed on the ground of the box body 1, and the motor assembly 3 can drive the water outlet filter shaft 91 to rotate; one end of the water outlet connecting rod 92 is slidably connected to the water outlet filter shaft 91 and connected to the water outlet filter shaft 91 through the water outlet spring 94, and the other end of the water outlet connecting rod 92 is slidably connected to the external frame 93 and connected to the external frame 93 through the water outlet spring 94; a water outlet filter screen 95 is provided between two adjacent water outlet connecting rods 92, and the second lifting wedge block 11 can squeeze and lift the water outlet connecting rod 92 after lifting. Preferably, the external frame 93 is a circular ring, the second lifting wedge block 11 is provided at one end away from the lower water outlet pipe 10, and a waterproof pad is provided between the water outlet filter shaft 91 and the box body 1.

[0037] In other solutions, the motor assembly 3 includes a mounting plate 31, a driving motor 32 and a connecting belt 33; the mounting plate 31 is fixed on the box body 1, the driving motor 32 is arranged on the mounting plate 31, and can drive the driving rotating rod 21 to rotate, and the connecting belt 33 tightly connects the driving rotating rod 21 and the water outlet filter rotating shaft 91. That is, the motor can simultaneously drive the driving rotating shaft and the water outlet filter rotating shaft 91 to rotate.

[0038] The above-mentioned stainless steel water tank can make the microbial filter net intermittently rise and fall, so that the water flow can also flush up and down, making it easier for the condensed substances on the microbial filter net to fall off.

[0039] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A stainless steel water tank, characterized in that: It includes a box body, a rotating rod assembly, a motor assembly, a biological filtration assembly, a sieve plate, a transmission mechanism, a lifting assembly and a limiting assembly; The rotating rod assembly is rotatably arranged in the box body, and the motor is arranged on the box body and can drive the rotating rod assembly to rotate; The biological filtration component is movably mounted on the rotating rod component and is elastic; the sieve plate is disposed in the box body, the transmission mechanism and the limiting component are rotatably mounted on the sieve plate respectively, the forward rotation of the rotating rod component can cause the transmission mechanism to intermittently reverse, and the limiting component can limit the forward rotation of the transmission mechanism; The lifting component can be lifted and lowered on the screen plate. After being lifted, the lifting component can squeeze the rotating biological filter component to lift the biological filter component. The rotation of the transmission mechanism can lift the lifting component.

2. A stainless steel water tank according to claim 1, characterized in that: The transmission mechanism includes a transmission gear, a transmission internal gear ring and an extrusion assembly; the transmission gear, the transmission internal gear ring and the extrusion assembly are respectively rotatably connected to the screen plate; the forward rotation of the rotating rod assembly can drive the transmission gear to reverse, the transmission gear and the transmission internal gear ring are meshed, a plurality of gear teeth are provided on the outer side of the transmission internal gear ring to form an incomplete gear ring, the transmission internal gear ring can intermittently drive the extrusion assembly to rotate, the rotation of the extrusion assembly can lift the lifting assembly, and the limiting assembly can limit the reversal of the extrusion assembly.

3. A stainless steel water tank according to claim 2, characterized in that: The extrusion assembly includes an incomplete internal gear ring and an extrusion wedge; the incomplete internal gear ring is rotatably connected to the screen plate and can engage with the transmission internal gear ring; a plurality of ratchets are circumferentially fixed to the outer side of the incomplete internal gear ring, and the limiting assembly can limit the forward rotation of the incomplete internal gear ring through the ratchets; the extrusion wedge is fixed on the incomplete internal gear ring, and can squeeze the lifting assembly as the incomplete internal gear ring rotates, so that the lifting assembly is lifted.

4. A stainless steel water tank according to claim 3, characterized in that: The lifting assembly includes a fixed plate and a first lifting wedge; the fixed plate is fixedly mounted on the screen plate, the first lifting wedge is slidably connected to the fixed plate and can be raised and lowered, the extrusion wedge can squeeze the first lifting wedge to lift the first lifting wedge, and the first lifting wedge can squeeze the biological filtration assembly to lift the biological filtration assembly.

5. A stainless steel water tank according to claim 4, characterized in that: The limiting assembly includes a pawl, a supporting spring and a fixing rod; the pawl is rotatably connected to the screen plate and is connected to the fixing rod through the supporting spring, and the fixing rod is fixed to the screen plate.

6. A stainless steel water tank according to claim 5, characterized in that: The rotating rod assembly includes a driving rotating rod and a driving gear; the driving rotating rod is rotatably inserted into the box body, and the motor assembly can drive the driving rotating rod to rotate; a slide groove is axially provided on the driving rotating rod, and the biological filtration assembly can be slidably connected in the slide groove in a lifting manner; the driving gear is coaxially fixed on the driving rotating rod and meshes with the transmission gear.

7. A stainless steel water tank according to claim 6, characterized in that: The biological filtration assembly includes a biological filtration clamp, a microbial filtration net and a connecting spring; the biological filtration clamp can be slidably connected in the slide groove and clamp the microbial filtration net, and the biological filtration clamp is connected to the slide groove through the connecting spring.

8. A stainless steel water tank according to claim 7, characterized in that: The bottom of the box body is also provided with a lower water outlet pipe, a water outlet filter assembly, a second lifting wedge block and a connecting plate; the water outlet filter assembly is rotatably inserted into the bottom of the box body, the motor assembly can drive the water outlet filter assembly to rotate, the water outlet filter assembly abuts the top surface of the lower water outlet pipe, the second lifting wedge block is liftably arranged on the bottom surface of the box body, and is connected to the first lifting wedge block through the connecting plate, and when the second lifting wedge block is lifted, the water outlet filter assembly can be lifted and lowered when rotating.

9. A stainless steel water tank according to claim 8, characterized in that: The water outlet filter assembly includes a water outlet filter shaft, a water outlet connecting rod, an external frame, a water outlet spring and a water outlet filter; the water outlet filter shaft is rotatably penetrated through the floor of the box body, and the motor assembly can drive the water outlet filter shaft to rotate; one end of the water outlet connecting rod is slidably connected to the water outlet filter shaft and is connected to the water outlet filter shaft through the water outlet spring, and the other end of the water outlet connecting rod is slidably connected to the external frame and is connected to the external frame through the water outlet spring; the water outlet filter is provided between two adjacent water outlet connecting rods, and the second lifting wedge block can squeeze and lift the water outlet connecting rod after being lifted.

10. A stainless steel water tank according to claim 9, characterized in that: The motor assembly includes a mounting plate, a driving motor and a connecting belt; the mounting plate is fixed on the box body, the driving motor is arranged on the mounting plate, and can drive the driving rotating rod to rotate, and the connecting belt tightly protects the driving rotating rod and the water outlet filter shaft.

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