Biological filler device for septic tank

Abstract

The utility model relates to a septic tank biological filler device which comprises two sets of sliding rails oppositely arranged in a septic tank, one set of sliding rails are provided with brackets in a sliding mode, a combined frame is arranged between the two brackets, and the combined frame is used for installing biological filler; a lifting mechanism is arranged on one group of sliding rails, and is used for driving the bracket to lift, so that the combined frame is taken out or put into the septic tank; the lifting mechanism comprises a lifting frame arranged between a group of sliding rails in a sliding mode and driving parts arranged on the sliding rails, and the lifting frame is connected with the bracket. Through the automatic lifting mechanism, the installation, maintenance and replacement processes of the biological stuffing are greatly simplified, the difficulty and strength of manual operation are reduced, and the operation efficiency is improved. And the working efficiency is improved. Operators do not need to frequently enter the septic tank for operation, and safety risks caused by harmful gas, wet and slippery environments and the like are reduced.

Description

Technical Field

[0001] This application relates to the technical field of septic tanks, and particularly to a biological filler device for septic tanks. Background Art

[0002] In the field of sewage treatment, as a common primary treatment device, septic tanks are widely used in residential areas, industrial areas, rural areas, etc. Their main function is to preliminarily degrade the organic matter in sewage through the decomposition of microorganisms. In order to improve the treatment efficiency of septic tanks, biological filler devices are widely used therein to provide more attachment areas for the growth and reproduction of microorganisms.

[0003] However, in actual use, most existing biological filler devices are fixedly installed, that is, the biological fillers are evenly tied to the frame and then fixed by bolts or directly welded inside the septic tank. Although this installation method is simple and easy to implement, over time, the biological fillers are prone to blockage and it is difficult to carry out thorough cleaning and maintenance. Due to the complex internal environment and limited space of the septic tank, once the biological filler device is blocked or needs to be replaced, a large amount of manpower and material resources are often required for disassembly and reinstallation, which is not only inefficient but also increases the operating cost.

[0004] Secondly, there are also many inconveniences in replacing the fillers of fixedly installed biological filler devices. Since the fillers and the frame are usually fixed by bolts or welding, etc., when replacing, it is necessary to disassemble the bolts one by one or cut the welding points, which is not only cumbersome to operate but also easy to damage the frame. In addition, due to the long filler replacement cycle, the accumulated dirt and residues over time will further exacerbate the difficulty of cleaning and maintenance.

[0005] In view of the above problems, a biological filler device for septic tanks is now designed. Utility Model Content

[0006] The embodiments of this application provide a biological filler device for septic tanks to solve the problem that in actual use of existing biological filler devices in related technologies, most biological filler devices are fixedly installed, resulting in inconvenience in the process of cleaning and replacing biological fillers.

[0007] In a first aspect, a biological filler device for septic tanks is provided, including:

[0008] Two groups of slide rails arranged oppositely inside the septic tank, a bracket is slidably arranged on one group of the slide rails, and a combined frame is arranged between the two brackets, and the combined frame is used for installing biological fillers;

[0009] A lifting mechanism is arranged on one group of the slide rails, and the lifting mechanism is used to drive the bracket to lift and lower, so as to take out or put the combined frame into the septic tank;

[0010] The lifting mechanism includes a lifting frame slidably arranged between a set of slide rails, and a driving member arranged on the slide rails. The lifting frame is connected to the bracket, and the driving member is connected to the lifting frame and used to drive the lifting frame to move along the length direction of the slide rails.

[0011] In some embodiments, the number of a set of the slide rails is two, and the two slide rails on the same side are oppositely arranged inside the septic tank. The lifting frame is slidably arranged between the two slide rails, and the bracket is arranged on one side of the two slide rails on the same side.

[0012] In some embodiments, the driving member includes: a fixed beam arranged between the tops of two adjacent slide rails;

[0013] a housing arranged at the bottom of the fixed beam;

[0014] a reel rotatably arranged inside the housing;

[0015] a cable wound around the reel;

[0016] a speed reducer arranged on the housing;

[0017] a driving motor connected to the speed reducer;

[0018] The output shaft of the speed reducer is connected to any end of the reel, and the output shaft of the driving motor is connected to the input shaft of the speed reducer;

[0019] The bottom end of the cable penetrates through the housing and is connected to the lifting frame.

[0020] In some embodiments, the lifting frame is in an n shape, and a plurality of rotatable pulleys are embedded in the lifting frame, and slideways adapted to the pulleys are formed on the slide rails.

[0021] In some embodiments, the combined frame includes two mounting plates arranged oppositely, and a plurality of support plates arranged symmetrically up and down are arranged between the two mounting plates. A plurality of hanging rods are inserted on the support plates, and the biological filler is installed between two hanging rods arranged symmetrically up and down;

[0022] The mounting plate is connected to the corresponding bracket.

[0023] In some embodiments, a plurality of partition strips are arranged on the hanging rod, and the partition strips are used for positioning the installed biological filler.

[0024] In some embodiments, a locking mechanism is further arranged on the slide rails;

[0025] The locking mechanism includes an electric push rod hinged on the slide rail. A limiting rod is hinged on the piston rod of the electric push rod. The limiting rod is Z-shaped. A hinge seat is arranged on the slide rail, and the limiting rod is hinged with the hinge seat. Two fixed frames are oppositely arranged at the top of the lifting frame;

[0026] The electric push rod drives one end of the limiting rod to flip circumferentially along the hinge seat, so that the other end of the limiting rod extends into the fixed frame to support the lifting frame.

[0027] The embodiment of the present application provides a biological filler device for septic tanks. Through the automated lifting mechanism, the installation, maintenance, and replacement processes of biological fillers are greatly simplified, the difficulty and intensity of manual operations are reduced, and the work efficiency is improved. Operators do not need to frequently enter the septic tank for operations, reducing the safety risks brought by harmful gases, slippery environments, etc.

[0028] Regular cleaning and maintenance can effectively prevent problems such as blockage and aging of biological fillers, thereby extending the service life of the entire septic tank treatment system. At the same time, the timely replacement and effective maintenance of biological fillers ensure their good biodegradation ability, thereby improving the treatment effect of the septic tank on sewage and being beneficial to environmental protection and ecological balance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0030] Figure 1 It is a three-dimensional structure diagram provided by the embodiment of the present application;

[0031] Figure 2 It is a three-dimensional schematic diagram of the lifting mechanism provided by the embodiment of the present application;

[0032] Figure 3 It is a front view cross-sectional view of the driving part provided by the embodiment of the present application;

[0033] Figure 4 It is a three-dimensional structure diagram of the lifting frame provided by the embodiment of the present application;

[0034] Figure 5 It is a three-dimensional structure diagram of the connection structure between the locking mechanism and the slide rail provided by the embodiment of the present application;

[0035] Figure 6 It is a three-dimensional structure diagram of the combined frame provided by the embodiment of the present application;

[0036] Figure 7 Schematic three-dimensional structure diagram of the hanging rod provided by the embodiment of the present application.

[0037] In the figure: 1, slide rail; 2, bracket; 3, combined rack; 31, mounting plate; 32, support plate; 33, hanging rod; 4, lifting mechanism; 41, lifting frame; 42, driving member; 421, fixed beam; 422, housing; 423, reel; 424, cable; 425, reducer; 426, driving motor; 5, pulley; 6, locking mechanism; 61, electric push rod; 62, limiting rod; 63, fixed frame; 7, partition strip. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0039] The embodiment of the present application provides a biological filler device for septic tanks, which can solve the problem that in the related art, most of the existing biological filler devices are fixedly installed in actual use, resulting in inconvenient cleaning and replacement of biological fillers.

[0040] Please refer to Figures 1 - 3 , a biological filler device for septic tanks includes: two groups of slide rails 1 arranged oppositely inside the septic tank, a bracket 2 is slidably arranged on one group of the slide rails 1, a combined rack 3 is arranged between the two brackets 2, and the combined rack 3 is used for installing biological fillers; a lifting mechanism 4 is arranged on one group of the slide rails 1, and the lifting mechanism 4 is used to drive the bracket 2 to lift and lower, and take out or put the combined rack 3 into the septic tank; the lifting mechanism 4 includes a lifting frame 41 slidably arranged between one group of slide rails 1, and a driving member 42 arranged on the slide rails 1, the lifting frame 41 is connected to the bracket 2, and the driving member 42 is connected to the lifting frame 41 and used to drive the lifting frame 41 to move along the length direction of the slide rail 1.

[0041] The working principle of this biological filler device for septic tanks is based on the principles of mechanical transmission and automatic control, aiming to conveniently and efficiently realize the installation, maintenance, and replacement of biological fillers.

[0042] Initial state: The combined rack 3 is installed on one group of slide rails 1 through the bracket 2 and is located at an appropriate position inside the septic tank. The biological filler is fixed on the combined rack 3 and starts its biological degradation function.

[0043] Lifting operation: When it is necessary to take out the combination rack 3 for cleaning, maintenance or replacement of biological fillers, start the driving part 42 of the lifting mechanism 4. With the start of the driving part 42, the lifting frame 41 moves along the length direction of the slide rail 1. Since the lifting frame 41 is connected to the bracket 2, the bracket 2 and the combination rack 3 thereon will rise or fall synchronously. During this process, the slide rail 1 ensures the smoothness and accuracy of the movement.

[0044] Taking out or putting in: When the lifting frame 41 drives the bracket 2 and the combination rack 3 to rise to the mouth of the septic tank or completely leave the septic tank, the operator can easily carry out the necessary maintenance or replacement work. Or take the combination rack 3 off the bracket 2. Conversely, a new or cleaned combination rack 3 can also be installed back on the bracket 2 and then lowered back into the septic tank through the lifting mechanism 4.

[0045] Through the automated lifting mechanism, the installation, maintenance and replacement processes of biological fillers are greatly simplified, the difficulty and intensity of manual operations are reduced, and the work efficiency is improved. The operator does not need to frequently enter the septic tank for operations, reducing the safety risks brought by harmful gases, slippery environments, etc.

[0046] Regular cleaning and maintenance can effectively prevent problems such as blockage and aging of biological fillers, thereby extending the service life of the entire septic tank treatment system. At the same time, the timely replacement and effective maintenance of biological fillers ensure their good biodegradation ability, thereby improving the treatment effect of the septic tank on sewage and being beneficial to environmental protection and ecological balance.

[0047] Moreover, by reducing labor costs and maintenance expenses, and improving the treatment efficiency, the overall operating cost can be significantly reduced.

[0048] Specifically, in this implementation plan, the number of a group of the slide rails 1 is two, and the two slide rails 1 on the same side are arranged oppositely inside the septic tank. The lifting frame 41 is slidably arranged between the two slide rails 1, and the bracket 2 is arranged on one side of the two slide rails 1 on the same side.

[0049] The two slide rails 1 are arranged oppositely on the same side inside the septic tank, forming a stable and clearly oriented track system. Ensuring the stability and safety of the bracket 2 and the combination rack 3 thereon during the lifting process.

[0050] The lifting frame 41, as a key component connecting the bracket 2 and the driving part 42, slides along the length direction of the two slide rails 1 on both sides respectively. So that under the action of the driving part 42, the lifting frame 41 can smoothly and accurately drive the bracket 2 and the combination rack 3 to perform lifting movements. The bracket 2 is arranged on one side of the two slide rails 1 on the same side and is usually connected to the lifting frame 41 by bolts. In this way, when the lifting frame 41 moves on the slide rail 1, the bracket 2 will also move accordingly, thereby driving the combination rack 3 and the biological fillers above to rise and fall.

[0051] In addition, the design of the double slide rails also provides additional stability and support, especially when dealing with the relatively heavy combination rack 3 and biological fillers. The relative arrangement of the two slide rails 1 helps to disperse the load, reduce the stress on a single slide rail, and extend the service life of the slide rails and the entire device.

[0052] It should be noted that the bracket 2 and the combination rack 3 in this embodiment can be connected by snap connection or bolt connection, or the combination rack 3 can be directly placed between the two brackets 2.

[0053] In one embodiment, a plurality of insertion blocks are provided at the bottom of the combination rack 3, and a plurality of grooves adapted to the insertion blocks are provided on the bracket 2.

[0054] The bottom of the combination rack 3 is designed with a plurality of insertion blocks, which can be rectangular, circular or other shapes, and the specific shape depends on the design requirements. Corresponding grooves matching the shape and size of the insertion blocks are provided on the bracket 2. When it is necessary to install the combination rack 3 on the bracket 2, the insertion blocks can be aligned with the grooves and inserted to achieve quick connection.

[0055] The connection method between the insertion blocks and the grooves makes the installation and disassembly of the combination rack 3 very simple and fast. Without the need for additional tools or complex operation steps, the installation and disassembly work can be easily completed, greatly improving the work efficiency.

[0056] The design of the insertion blocks and the grooves can be adjusted and optimized according to actual needs. For example, the shape, size and quantity of the insertion blocks and the grooves can be changed to adapt to combination racks 3 of different specifications and weights. This flexibility makes this connection method highly adaptable in a variety of application scenarios.

[0057] As Figure 3 shown, the driving member 42 includes: a fixed beam 421 disposed between the tops of two adjacent slide rails 1; a housing 422 disposed at the bottom of the fixed beam 421;

[0058] a reel 423 rotatably disposed inside the housing 422; a cable 424 wound around the reel 423; a speed reducer 425 disposed on the housing 422; a driving motor 426 connected to the speed reducer 425; an output shaft of the speed reducer 425 is connected to either end of the reel 423, and an output shaft of the driving motor 426 is connected to an input shaft of the speed reducer 425; the bottom end of the cable 424 penetrates through the housing 422 and is connected to the lifting frame 41.

[0059] The fixed beam 421 spans and is disposed between the tops of two adjacent slide rails 1, providing a stable support platform for the entire driving mechanism.

[0060] The cable 424 is wound around the reel 423, with one end fixed to the reel 423 and the other end passing through the housing 422 and connecting to the lifting frame 41. By rotating the reel 423, the cable 424 can be retracted and extended, thereby driving the lifting frame 41 to move up and down.

[0061] When it is necessary to lift or lower the lifting frame 41, the drive motor 426 is started and drives the input shaft of the reducer 425 to rotate. The reducer 425 converts the high-speed low-torque output of the drive motor 426 into a low-speed high-torque output and transmits it to the reel 423. As the reel 423 rotates, the cable 424 begins to be retracted and extended. When the reel 423 rotates clockwise or counterclockwise, the cable 424 is wound up, thereby driving the lifting frame 41 to rise; when the reel 423 rotates counterclockwise or clockwise, the cable 424 is released, and the lifting frame 41 descends.

[0062] As Figure 5 shown, in one embodiment, the lifting frame 41 is in an n-shape, and a number of rotatable pulleys 5 are embedded in the lifting frame 41, and slideways adapted to the pulleys 5 are provided on the slide rail 1.

[0063] Since the n-shaped structure has a relatively large cross-sectional area, it can more effectively disperse and bear the weight of the combined frame 3 and the biological fillers thereon. In addition, the n-shaped structure also makes the lifting frame 41 more stable during the lifting process, reducing the possibility of shaking and deviation.

[0064] The pulleys 5 embedded in the lifting frame 41 are adapted to the slideways provided on the slide rail 1, reducing the frictional resistance when the lifting frame 41 moves on the slide rail 1. The rolling friction of the pulleys 5 is much smaller than the direct contact friction, so it can significantly reduce the driving force required during the lifting process, reduce energy consumption, and extend the service life of the equipment.

[0065] At the same time, the cooperation of the pulleys 5 and the slideways also ensures the smooth movement of the lifting frame 41 on the slide rail 1. The pulleys 5 can roll smoothly along the slideways, avoiding jamming, bumping or deviation phenomena that occur during the movement of the lifting frame 41, thus ensuring the accuracy and reliability of the lifting.

[0066] In a preferred embodiment, as Figure 6 shown, the combined frame 3 includes two oppositely arranged mounting plates 31, a number of vertically symmetrically arranged support plates 32 are provided between the two mounting plates 31, a number of hanging rods 33 are inserted on the support plates 32, and the biological fillers are installed between two vertically symmetric hanging rods 33;

[0067] The mounting plate 31 is connected to the corresponding bracket 2. A number of jacks are provided on the support plate 32, and the hanging rods 33 are inserted inside the jacks.

[0068] The basic framework of the combined frame 3 is formed by two relatively arranged mounting plates 31. The two mounting plates 31 not only provide stable support for the entire combined frame, but also facilitate connection with the bracket 2, ensuring that the combined frame can be stably mounted on the slide rail 1.

[0069] A plurality of support plates 32 are arranged symmetrically up and down between the two mounting plates 31. The symmetrical arrangement of the support plates 32 makes the combined frame more balanced in structure, which is conducive to bearing the weight of the biological filler.

[0070] The hanging rods 33 are inserted into these sockets. This plugging method makes the installation and removal of the hanging rods 33 very convenient, and it is also convenient to adjust the position and number of the hanging rods 33 according to actual needs. The biological filler is installed between two hanging rods 33 that are symmetrical in the upper and lower directions. This layout is conducive to the biological filler fully contacting the sewage and exerting its biodegradation effect.

[0071] Furthermore, a plurality of support plates 2 are arranged in the middle between the two mounting plates 31, and the overall stability of the assembly frame 3 is improved by the support plates 2.

[0072] The support plate 2, as an additional support structure, can share the weight from the biological filler and the hanging rod 33, thereby reducing the stress burden on the mounting plate 31 and the original support plate 32. This design of dispersing stress makes the entire assembly frame 3 more sturdy and durable.

[0073] The second support plate is added in the middle to effectively prevent the combined frame 3 from being twisted, deformed or tilted during lifting or use. The second support plate, the mounting plate 31 and the original support plate 32 together form a more stable support system to ensure the stable operation of the combined frame 3.

[0074] The arrangement of the second support plate can also provide more installation positions for the hanging rod 33, making the layout of the biological filler more reasonable and efficient. By adjusting the number and position of the second support plate, the contact area and reaction efficiency of the biological filler can be further optimized.

[0075] Preferably, Figure 7 As shown, in this embodiment, a plurality of spacers 7 are arranged on the hanging rod 33, and the spacers 7 are used to position the installed biological fillers.

[0076] The main function of the spacer 7 is to position the biological filler installed on the hanging rod 33. The spacer 7 divides the hanging rod 33 into multiple areas, each of which can accommodate a certain amount of biological filler. In this way, it can be ensured that the biological filler remains neat and orderly during installation, avoiding disorder and mutual squeezing between the fillers.

[0077] The partition strips 7 not only help to position the biological packing material, but also improve the stability of the packing material to a certain extent. They can limit the movement range of the packing material on the hanging rod and prevent the packing material from falling off or shifting during the operation of the equipment or under the action of external forces.

[0078] Optimize water flow distribution: The setting of the partition strips can also affect the distribution of water flow when passing through the biological packing material layer. They can guide the water flow to flow more evenly through each packing unit, improve the efficiency and effect of biodegradation. At the same time, the partition strips may also promote the gas-liquid exchange on the surface of the packing material, which is beneficial to the growth and metabolism of microorganisms.

[0079] When it is necessary to clean or replace the biological packing material, the partition strips can be used as auxiliary tools for operation. They can help workers more easily identify and separate different packing units, thus simplifying the maintenance process and improving work efficiency.

[0080] In practical applications, it may be necessary to adjust and optimize the partition strips 7 according to specific circumstances. For example, adjust the spacing or quantity of the partition strips according to the degradation efficiency of the biological packing material and the changes in water quality.

[0081] In another example, as Figure 4 and Figure 5 shown, it further includes a locking mechanism 6 arranged on the slide rail 1;

[0082] The locking mechanism 6 includes an electric push rod 61 hinged on the slide rail 1. A limiting rod 62 is hinged on the piston rod of the electric push rod 61. The limiting rod 62 is Z-shaped. A hinge seat is arranged on the slide rail 1. The limiting rod 62 is hinged with the hinge seat. Two fixing frames 63 are oppositely arranged at the top of the lifting frame 41; The electric push rod 61 drives one end of the limiting rod 62 to rotate circumferentially along the hinge seat, so that the other end of the limiting rod 62 extends into the fixing frame 63 to support the lifting frame 41.

[0083] When the limiting rod 62 extends into the fixing frame 63, the piston rod of the electric push rod 61 and the corresponding hinge seat are arranged relatively

[0084] At the same time, a through hole is formed on the slide rail 1, so that the limiting rod 62 passes through the fixing frame 63 and extends into the through hole on the slide rail 1.

[0085] The limiting rod 62 is Z-shaped, and one end of it is hinged with the piston rod of the electric push rod 61. Due to this hinged manner, when the piston rod of the electric push rod 61 expands and contracts, the limiting rod 62 will rotate circumferentially along the hinge seat. This rotational movement of the limiting rod 62 is the key to realizing the locking function.

[0086] A hinge seat is arranged on the slide rail 1, and the limiting rod 62 is hinged with the hinge seat. In this way, the limiting rod 62 can rotate around the hinge seat under the drive of the electric push rod 61.

[0087] Two fixing frames 63 are oppositely arranged at the top of the lifting frame 41. When the limiting rod 62 rotates to a certain position, the other end thereof will extend into the fixing frame 63, thereby supporting and locking the lifting frame 41.

[0088] When it is necessary to lock the lifting frame 41, the electric push rod 61 is activated, and its piston rod pushes the limiting rod 62 to rotate circumferentially along the hinge seat. With the rotation of the limiting rod 62, the other end thereof gradually approaches and finally extends into the fixing frame 63. At this time, the piston rod of the electric push rod 61 and the corresponding hinge seat are arranged oppositely to ensure that the limiting rod 62 can be stably supported on the fixing frame 63.

[0089] Meanwhile, the through hole formed in the slide rail 1 allows the limiting rod 62 to pass through the fixing frame 63 and continue to extend into the through hole, further enhancing the stability of the locking.

[0090] The locking mechanism 6 can quickly lock the lifting frame 41 when needed, prevent it from accidentally sliding or moving, and improve the safety of the equipment.

[0091] Through the coordinated use of the electric push rod 61 and the limiting rod 62, the stable support and locking of the lifting frame 41 can be achieved, enhancing the overall stability of the equipment.

[0092] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus cannot be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0093] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0094] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A biological filler device for septic tanks, characterized in that, Comprising: Two groups of slide rails (1) arranged relatively inside the septic tank. A bracket (2) is slidably arranged on one group of the slide rails (1), and a combined rack (3) is arranged between the two brackets (2). The combined rack (3) is used for installing biological fillers. A lifting mechanism (4) is arranged on one group of the slide rails (1). The lifting mechanism (4) is used for driving the bracket (2) to lift and lower, and taking out or putting the combined rack (3) into or out of the septic tank. The lifting mechanism (4) includes a lifting frame (41) slidably arranged between one group of slide rails (1), and a driving member (42) arranged on the slide rails (1). The lifting frame (41) is connected to the bracket (2), and the driving member (42) is connected to the lifting frame (41) and used for driving the lifting frame (41) to move along the length direction of the slide rails (1).

2. A biological filler device for a septic tank according to claim 1, characterized in that: The number of one group of the slide rails (1) is two. Two slide rails (1) on the same side are arranged relatively inside the septic tank. The lifting frame (41) is slidably arranged between the two slide rails (1), and the bracket (2) is arranged on one side of the two slide rails (1) on the same side.

3. A biological filler device for a septic tank according to claim 2, characterized in that: The driving member (42) includes: a fixed beam (421) arranged between the tops of two adjacent slide rails (1); A housing (422) arranged at the bottom of the fixed beam (421); A reel (423) rotatably arranged inside the housing (422); A cable (424) wound around the reel (423); A speed reducer (425) arranged on the housing (422); A driving motor (426) connected to the speed reducer (425); The output shaft of the speed reducer (425) is connected to any end of the reel (423), and the output shaft of the driving motor (426) is connected to the input shaft of the speed reducer (425); The bottom end of the cable (424) penetrates through the housing (422) and is connected to the lifting frame (41).

4. A biological filler device for a septic tank according to claim 1, characterized in that: The lifting frame (41) is in an n shape, and a number of rotatable pulleys (5) are embedded in the lifting frame (41). Slideways adapted to the pulleys (5) are provided on the slide rails (1).

5. A biological filler device for a septic tank according to claim 1, characterized in that: The combined rack (3) includes two relatively arranged mounting plates (31). A number of support plates (32) arranged symmetrically up and down are arranged between the two mounting plates (31). A number of hanging rods (33) are inserted on the support plates (32). The biological fillers are installed between two hanging rods (33) arranged symmetrically up and down; The mounting plate (31) is connected to the corresponding bracket (2).

6. A biological filler device for a septic tank according to claim 5, characterized in that: A number of partition strips (7) are arranged on the hanging rods (33). The partition strips (7) are used for positioning the installed biological fillers.

7. A septic tank biological filler device as described in claim 1, characterized in that: It further includes a locking mechanism (6) arranged on the slide rail (1); The locking mechanism (6) includes an electric push rod (61) hinged on the slide rail (1), a limit rod (62) is hinged on the piston rod of the electric push rod (61), the limit rod (62) is Z-shaped, a hinge seat is arranged on the slide rail (1), the limit rod (62) is hinged with the hinge seat, and two fixing frames (63) are oppositely arranged at the top of the lifting frame (41); The electric push rod (61) drives one end of the limit rod (62) to rotate circumferentially along the hinge seat, so that the other end of the limit rod (62) extends into the fixing frame (63) to support the lifting frame (41).

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