Sewage treatment equipment based on environmental protection

Abstract

The present application relates to sewage treatment technical field, disclose a kind of sewage treatment equipment based on environmental protection.The shell is included, water inlet pipe and water outlet pipe are equipped on shell, further include multiple transparent tubes, multiple ultraviolet light strips, a flexible scraper and drive mechanism;Flexible scraper is with transparent tube interference contact by flexible elastic material, the force acting on pipe wall when scale and dirt are scraped is uniform and soft, not easy to cause scratch or wear to transparent tube, ensure that the long-term stability of ultraviolet transmittance, so as to ensure continuous high-efficiency disinfection effect, meet environmental protection requirements.The overall structure is extremely simple, only a set of linear drive mechanism can clean multiple transparent tubes simultaneously, manufacturing cost and operating energy consumption are low, transparent tube is detachably installed through sealing assembly, ultraviolet light strip is also independently disassembled through end cap, when maintaining, it is not necessary to overall shutdown, only need to replace the faulty transparent tube or light strip, maintenance is extremely convenient.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically to a wastewater treatment device based on environmental protection. Background Technology

[0002] In ultraviolet (UV) disinfection wastewater treatment equipment, the UV light source is typically encapsulated in a transparent sleeve (such as a quartz tube or a high-transmittance plastic tube) to prevent direct contact between the wastewater and the light source, thus avoiding damage and ensuring effective UV transmission. However, during wastewater treatment, calcium and magnesium ions, suspended particles, colloidal substances, and microorganisms in the wastewater gradually deposit on the outer wall of the transparent sleeve, forming scale and dirt layers. This significantly reduces the UV transmittance of the transparent sleeve, thereby lowering the UV disinfection efficiency, failing to guarantee that wastewater disinfection meets standards, and impacting environmental protection. To address the scaling problem in transparent sleeves, existing technologies have proposed various cleaning solutions, such as manual disassembly and cleaning, chemical cleaning, and automatic cleaning mechanisms. Among them, automatic cleaning mechanisms mostly adopt structures such as rotating brushes and high-pressure rinsing. For example, in the announcement number CN223547774U-A self-cleaning ultraviolet device, cleaning is achieved by rinsing with circulating cleaning fluid combined with the rotation of the quartz sleeve. However, such structures are complex in design and have high manufacturing costs. Moreover, the rotating parts are difficult to seal, which can easily lead to sewage leakage. At the same time, the cleaning process may cause wear to the transparent sleeve, affecting its light transmission performance and service life. It is difficult to adapt to the low-cost and high environmental protection requirements of small and medium-sized sewage treatment scenarios. Summary of the Invention

[0003] The main objective of this invention is to provide an environmentally friendly wastewater treatment device that addresses the problem that existing self-cleaning ultraviolet devices may cause wear and tear on the transparent sleeve during the cleaning process, affecting its light transmission performance and service life, and making it difficult to adapt to low-cost small and medium-sized wastewater treatment scenarios.

[0004] To achieve the above objectives, the present invention provides a wastewater treatment device based on environmental protection, including a housing, an inlet pipe and an outlet pipe provided on the housing, and also including multiple transparent pipes, multiple ultraviolet lamp strips, a flexible scraper and a drive mechanism. Multiple transparent tubes are arranged in an array on one side wall of the housing. Each transparent tube is detachably installed on the side wall via a sealing assembly. The transparent tube has a first end that extends into the inner cavity of the housing and a second end that is located outside the housing. A sealing plug is interference-fitted into the first end. Each ultraviolet lamp strip is inserted from the second end of the corresponding transparent tube and housed within the transparent tube; A flexible scraper has multiple perforations arranged in a matrix. Each perforation corresponds to a transparent tube and is interference-fitted onto each transparent tube. The flexible scraper can slide along the axial direction of the transparent tube. A drive mechanism is installed in the housing and connected to the flexible scraper drive. It is used to drive the flexible scraper to move back and forth along the axis of the transparent tube to scrape off the scale adhering to the outer wall of the transparent tube.

[0005] Preferably, the drive mechanism includes a motor, a lead screw, and a support plate; The motor is fixed to the housing, and one of its output shafts extends into the housing and is fixedly connected to the lead screw on the same axis. A nut seat is fixed on the support plate and threaded onto the lead screw. The support plate and the flexible scraper are elastically connected by multiple first springs. The multiple first springs are distributed in a matrix, and the two ends of each first spring are fixed to the support plate and the flexible scraper, respectively. Multiple through holes, each corresponding to a transparent tube, are made on the support plate. The diameter of the through holes is larger than the outer diameter of the transparent tube. A flexible scraper has horizontal holes, through which a lead screw is inserted.

[0006] Preferably, the sealing assembly includes an externally threaded tube, an elastic sealing sleeve, and a lock nut; Multiple mounting holes are provided on the side wall of the housing. The external threaded tube is fixed at the mounting hole, the transparent tube is inserted through the external threaded tube, and the elastic sealing sleeve is fitted on the transparent tube and located inside the external threaded tube. The locking nut is threaded onto the external threaded pipe, and one end of the locking nut forms a limiting ring. The limiting ring presses against the end of the elastic sealing sleeve, causing the elastic sealing sleeve to deform and seal the gap between the transparent pipe and the external threaded pipe. The ultraviolet lamp strip passes through the inner cavity of the limiting ring, the external threaded tube, and the transparent tube in sequence.

[0007] Preferably, each ultraviolet lamp strip is fitted with multiple support and positioning sleeves, the outer edge of which is supported on the inner wall of the transparent tube to maintain the ultraviolet lamp strip in a centered position within the transparent tube.

[0008] Preferably, the housing is a rectangular housing and is fixed to a frame.

[0009] Preferably, it also includes a linkage sewage discharge mechanism, which includes two slide rails, a support rod, a linkage plate, four connecting rods and a push plate; Two slide rails are fixed to the two opposite inner side walls of the housing, and a slider is slidably installed on each slide rail; The two ends of the support rod are fixedly connected to two sliders respectively, and one end of the linkage plate is fixedly sleeved on the support rod, while the other end is fixedly connected to the support plate. Each slider is hinged with two connecting rods, and the lower ends of the four connecting rods are all hinged to the push plate, which is mounted on the inner bottom wall of the housing in a sliding manner. A drain outlet is provided on the bottom wall of the casing, and a vertical pipe extending downwards is connected to the drain outlet. A drain valve is provided at the end of the vertical pipe. When the drive mechanism moves the support plate, the slider moves along the slide rail through the linkage plate and support rod, and then the connecting rod moves the push plate on the bottom wall of the machine casing to push the deposits toward the vertical pipe.

[0010] Preferably, a bottom wall scraper is fixed on the bottom wall of the push plate, and the bottom wall scraper is in contact with the inner bottom wall of the machine housing.

[0011] Preferably, the drain valve includes a fixed seat, a movable top plate, a sealing gasket, a plurality of second springs and at least one trigger rod; The fixed base is fixedly installed on the housing, and multiple second springs are fixedly arranged in a rectangular shape on the fixed base. The upper end of each second spring is fixedly connected to the movable top plate. The sealing gasket is fixed to the upper surface of the movable top plate and elastically abuts against the tail end face of the vertical pipe to achieve a seal; The trigger rod is fixed to the movable top plate and extends upward. The sealing gasket has a hole for the trigger rod to pass through, and the top of the trigger rod extends into the vertical tube. A limiting strip is also fixed on the inner bottom wall of the housing near the top of the vertical tube to limit the movement of the push plate; When the push plate moves to the top of the vertical pipe, it moves downward, allowing the bottom wall scraper to press against the top of the trigger rod, thereby driving the movable top plate to compress the second spring and move downward, causing the sealing gasket to disengage from the tail end of the vertical pipe and opening the drain valve.

[0012] Preferably, a guide frame is fixed on the inner wall of the vertical tube, the trigger rod is movably inserted into the guide frame, and the bottom wall scraper of the push plate can abut against the upper end surface of the guide frame.

[0013] The beneficial effects of the above scheme are as follows: This invention houses multiple ultraviolet lamps within independent, one-end-sealed transparent tubes, and employs an interference-fit flexible scraper to perform integral axial reciprocating scraping of the outer wall of the transparent tubes. The transparent tubes are statically sealed to the housing, with no rotating parts, preventing the risk of wastewater leakage due to dynamic seal failure. This ensures reliable sealing and a long service life. The flexible scraper, made of a flexible material, makes interference contact with the transparent tubes, applying uniform and gentle force to the tube wall when scraping scale and dirt, minimizing scratches or wear and ensuring long-term stability of ultraviolet transmittance. This guarantees continuous and efficient disinfection, meeting environmental protection requirements. The overall structure is extremely simple, requiring only one linear drive mechanism to clean multiple transparent tubes simultaneously. Manufacturing costs and operating energy consumption are low. The transparent tubes are detachable and installable via sealing components, and the ultraviolet lamps are also independently detachable and installable via end caps. Maintenance does not require a complete shutdown; simply remove and replace the faulty transparent tube or lamp, making maintenance extremely convenient. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the first state of the present invention; Figure 3 yes Figure 2 Another structural diagram from a different perspective; Figure 4 This is a schematic diagram of the second state cross-sectional structure of the present invention; Figure 5 yes Figure 4 Enlarged structural diagram of region A in the middle; Figure 6 yes Figure 4 A magnified structural diagram of region B in the middle; Figure 7 This is a schematic diagram of the third state cross-sectional structure of the present invention.

[0016] Explanation of reference numerals in the attached figures 1. Housing; 11. Inlet pipe; 12. Outlet pipe; 131. Mounting hole; 14. Drain outlet; 15. Vertical pipe; 16. Limiting strip; 2. Transparent tube; 21. Sealing plug; 3. Sealing assembly; 31. External threaded tube; 32. Elastic sealing sleeve; 33. Locking nut; 331. Limiting ring; 4. Ultraviolet lamp strip; 42. Support positioning sleeve; 5. Flexible scraper; 51. Perforation; 52. Horizontal hole; 6. Drive mechanism; 61. Motor 62. Lead screw; 63. Support plate; 631. Nut seat; 64. First spring; 632. Through hole; 7. Frame; 8. Linkage sewage discharge mechanism; 81. Slide rail; 82. Support rod; 83. Linkage plate; 84. Connecting rod; 85. Push plate; 851. Bottom wall scraper; 86. Sliding block; 9. Sewage discharge valve; 91. Fixed seat; 92. Movable top plate; 93. Sealing gasket; 94. Second spring; 95. Trigger rod; 96. Guide frame. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0018] like Figures 1 to 7As shown, this embodiment provides a wastewater treatment device based on environmental protection, including a housing 1, which is fixed on a frame 7. The housing 1 is preferably rectangular to facilitate the layout of internal components. An inlet pipe 11 and an outlet pipe 12 are connected to the housing 1. Wastewater to be treated enters the inner cavity of the housing 1 through the inlet pipe 11, is disinfected by ultraviolet light, and is discharged through the outlet pipe 12. The core ultraviolet irradiation and cleaning part of this device mainly consists of multiple transparent tubes 2, multiple ultraviolet lamp strips 4, a flexible scraper 5, and a drive mechanism 6. Specifically, the multiple transparent tubes 2 are arranged in a matrix on one side wall of the housing 1. Each transparent tube 2 is detachably installed on this side wall via a sealing component 3. The transparent tube 2 has a first end that extends into the inner cavity of the housing 1 and contacts the wastewater, and a second end located outside the housing 1 for easy maintenance. A sealing plug 21 is inserted into the first end of each transparent tube 2 in an interference fit manner to ensure that wastewater does not enter the inner cavity of the transparent tube 2, thereby protecting the safety of the ultraviolet lamp strips 4. In this application, the transparent tube 2 is preferably made of quartz glass or high-transmittance plastic tube with high light transmittance, corrosion resistance, and a certain degree of rigidity. The sealing plug 21 is made of corrosion-resistant elastic rubber or silicone material to ensure a reliable static seal at the end after interference fit insertion. Multiple ultraviolet lamp strips 4 are the core of disinfection. Each ultraviolet lamp strip 4 is independently inserted from the second end of its corresponding transparent tube 2 and housed within the inner cavity of the transparent tube 2. This "built-in lamp strip, dry and wet separation" structure allows ultraviolet light to penetrate through the wall of the transparent tube 2 into the surrounding sewage for sterilization. At the same time, the lamp strip body is completely isolated from the sewage, has a long service life, and does not require sewage drainage during replacement.

[0019] To ensure continuous ultraviolet transmittance, this application employs a flexible scraper 5 for mechanical descaling. The flexible scraper 5 has multiple perforations 51 arranged in a matrix, each corresponding to a specific transparent tube 2 in position and number. Each perforation 51 is fitted onto the outer wall of its corresponding transparent tube 2 with an interference fit. A drive mechanism 6 is mounted on the housing 1 and connected to the flexible scraper 5, driving the scraper 5 to reciprocate along the axial direction of the transparent tube 2. As the flexible scraper 5 slides back and forth along the outer wall of the transparent tube 2, the edges of its perforations 51 effectively scrape away the scale and dirt layers adhering to the tube wall. Since the flexible scraper 5 is preferably made of a corrosion-resistant flexible polymer material (such as polyurethane or fluororubber), the force exerted when it contacts the transparent tube 2 is gentle, ensuring effective scraping without scratching the tube wall. This maintains the high transmittance of the transparent tube 2 over a long period, ensuring continuous and efficient disinfection capabilities and meeting environmental protection requirements for water quality treatment.

[0020] It should be noted that the transparent tube 2 in this application is completely fixed and does not involve any rotating parts. The tube body and the side wall of the housing 1 are completely sealed by the sealing component 3, which completely eliminates the risk of sewage leakage caused by the failure of dynamic seal in the prior art. The sealing reliability and service life are significantly improved, making it particularly suitable for the low-cost and high-reliability application requirements in small and medium-sized sewage treatment scenarios.

[0021] like Figure 2 , Figure 3 As shown, this application provides a preferred configuration for the specific implementation of the drive mechanism 6: it includes a motor 61, a lead screw 62, and a support plate 63. The motor 61 is fixed to the rear outer wall or top wall of the housing 1, and its output shaft extends into the housing 1 and is coaxially and fixedly connected to the lead screw 62. A nut seat 631 is fixed on the support plate 63, and the nut seat 631 is threadedly engaged with the lead screw 62. When the motor 61 drives the lead screw 62 to rotate forward and backward, it can drive the support plate 63 to move smoothly back and forth along the axial direction of the lead screw 62 within the housing 1.

[0022] To achieve the elastic floating operation of the flexible scraper 5, the support plate 63 and the flexible scraper 5 are elastically connected by multiple first springs 64. These first springs 64 are distributed in a matrix, and the two ends of each first spring 64 are fixedly connected to the support plate 63 and the flexible scraper 5, respectively. The support plate 63 has multiple through holes 632 corresponding one-to-one with the transparent tube 2. The diameter of the through holes 632 is significantly larger than the outer diameter of the transparent tube 2. Therefore, during the back-and-forth movement of the support plate 63, the inner wall of the through holes 632 will not contact or interfere with the transparent tube 2. The flexible scraper 5 has transverse holes 52 for the lead screw 62 to pass through, and the lead screw 62 can rotate freely within the transverse holes 52.

[0023] When the motor 61 drives the support plate 63 to move back and forth along the axial direction of the transparent tube 2, the power is flexibly transmitted to the flexible scraper 5 through multiple first springs 64, causing it to slide synchronously. The preload provided by the first springs 64 ensures that each perforation 51 of the flexible scraper 5 maintains a moderate and uniform interference grip on the outer wall of the transparent tube 2, adaptively compensating for minor wear after long-term use; at the same time, when there is stubborn hard scale on the outer wall of the transparent tube 2, the first springs 64 can slightly extend and retract to buffer, avoiding hard jamming and protecting the transparent tube 2 from being cracked.

[0024] like Figure 5 , Figure 6As shown, to achieve a reliable static seal and convenient assembly / disassembly between the transparent tube 2 and the side wall of the housing 1, the sealing assembly 3 has a specific structure: it includes an externally threaded tube 31, an elastic sealing sleeve 32, and a locking nut 33. Multiple mounting holes 131 are provided on the side wall of the housing 1, and the externally threaded tube 31 is fixed to the mounting holes 131 by welding or flanges. The transparent tube 2 passes through the inner cavity of the externally threaded tube 31, and the elastic sealing sleeve 32 is fitted onto the transparent tube 2 and located in the annular gap between the inner wall of the externally threaded tube 31 and the outer wall of the transparent tube 2. The locking nut 33 is threaded to the front end of the externally threaded tube 31, and its inner end forms a limiting ring 331.

[0025] During installation, after positioning the transparent tube 2 and the elastic sealing sleeve 32, tighten the locking nut 33. The limiting ring 331 then axially presses the end of the elastic sealing sleeve 32, forcing the elastic sealing sleeve 32 to deform and expand radially, tightly filling and sealing the gap between the transparent tube 2 and the external threaded tube 31, forming a reliable static seal. When maintenance or replacement of the transparent tube 2 is required, simply loosen the locking nut 33 to pull the transparent tube 2 out as a whole, making the operation extremely convenient. In addition, the ultraviolet lamp strip 4 is installed by passing through the inner hole of the limiting ring 331 of the locking nut 33, the inner cavity of the external threaded tube 31, and the inner cavity of the transparent tube 2 in sequence, and it also supports independent disassembly, without the need to shut down the entire machine for maintenance.

[0026] To ensure that the UV lamp strip 4 remains centered within the transparent tube 2, preventing it from tilting and touching the inner wall of the tube, which could lead to uneven heat dissipation or localized overheating, such as... Figure 5 As shown, each ultraviolet lamp strip 4 is fitted with multiple support and positioning sleeves 42 along its length. The outer edge of the support and positioning sleeve 42 is elastically supported on the inner wall of the transparent tube 2, and its central hole allows the lamp strip to pass through and form a proper clamping or positioning, thereby stably confining the lamp strip in the center of the tube cavity and ensuring that it radiates ultraviolet rays evenly in all directions.

[0027] like Figure 2 , Figure 4 and Figure 7 As shown, in order to further improve the automation level and processing effect of the equipment, this application also provides a linkage sewage discharge mechanism 8, which can automatically clean and discharge sludge and other deposits accumulated on the bottom wall of the casing 1 while driving the scraper to clean the transparent tube.

[0028] Specifically, the linkage sewage discharge mechanism 8 includes two slide rails 81, a support rod 82, a linkage plate 83, four connecting rods 84, and a push plate 85. The two slide rails 81 are horizontally fixed to the left and right opposite inner side walls of the housing 1 in the front-back direction, respectively. A slider 86 is slidably mounted on each slide rail 81. The two ends of the support rod 82 are fixedly connected to the left and right sliders 86, respectively. One end of the linkage plate 83 is fixedly sleeved on the support rod 82, and the other end extends backward and is fixedly connected to the support plate 63 of the drive mechanism 6. In this way, when the support plate 63 moves back and forth, the left and right sliders 86 can be driven to slide synchronously and smoothly along the slide rails 81 through the linkage plate 83 and the support rod 82.

[0029] Each slider 86 is hinged to two connecting rods 84, and the lower ends of all four connecting rods 84 are hinged to the push plate 85. The push plate 85 is constructed in a manner that allows it to slide along the inner bottom wall of the housing 1 under the action of gravity. A drain port 14 is provided at the rear end of the bottom wall of the housing 1, and a vertical pipe 15 extends downward from the drain port 14. A normally closed drain valve 9 is provided at the end of the vertical pipe 15.

[0030] The working process is as follows: During ultraviolet disinfection of wastewater, the wastewater to be treated continuously enters the inner cavity of the casing 1 through the inlet pipe 11. The ultraviolet light emitted by the ultraviolet lamp strip 4 penetrates the transparent tube 2 and irradiates the flowing wastewater, killing pathogenic microorganisms in the water. The treated and qualified clean water is discharged through the outlet pipe 12. Suspended particles and calcium and magnesium deposits in the wastewater gradually settle to the bottom wall of the inner wall of the casing 1, forming a sludge layer.

[0031] When the light transmittance of the outer wall of the transparent tube 2 decreases due to scale buildup and cleaning is required, the control system starts the motor 61, causing it to rotate in the forward direction. The motor 61 drives the lead screw 62 to rotate, which in turn drives the support plate 63 to move smoothly and linearly towards the second end of the transparent tube 2, i.e., towards the side wall of the housing 1. The support plate 63, through multiple first springs 64, elastically drives the flexible scraper 5 to slide in the same direction along the outer wall of the transparent tube 2. The interference clamping force of the perforation 51 efficiently scrapes the entire outer wall of the transparent tube 2, removing the attached scale and dirt.

[0032] Meanwhile, the forward movement of the support plate 63, via the linkage plate 83 fixed to it, drives the support rod 82 and the sliders 86 at both ends to slide forward synchronously along the slide rail 81. The forward movement of the sliders 86 transmits power to the push plate 85 through the hinged linkage 84 mechanism. At this time, the scraper 851 on the bottom wall of the push plate 85 adheres to the inner bottom wall of the housing 1 and moves forward like a bulldozer blade, concentrating the sludge, particles and other deposits previously deposited on the bottom wall and pushing them towards the sewage outlet 14 and the vertical pipe 15 in front.

[0033] When the pusher plate 85 pushes the sludge to near the top of the vertical pipe 15, its front end touches the limiting stop bar 16 fixed on the bottom wall of the casing 1, and the horizontal movement is forcibly stopped. At this time, if the motor 61 continues to drive the support plate 63 to move forward, under the motion constraint of the linkage 84 mechanism, the pusher plate 85 is forced to convert to an approximately vertical downward movement trend when it can no longer move forward, and its bottom wall scraper 851 begins to press downward into the upper opening of the vertical pipe 15.

[0034] As the push plate 85 continues to move downward, the lower surface of the bottom wall scraper 851 presses against the top of the trigger rod 95 in the drain valve 9. This force overcomes the elastic support force of the multiple second springs 94 on the fixed seat 91, causing the movable top plate 92 and the sealing gasket 93 fixed above it to move downward together. The sealing gasket 93 then disengages from the tail end face of the vertical pipe 15, and the drain valve 9 is forced to open mechanically. At this time, under the combined action of the squeezing of the push plate 85 and the static pressure of the sewage inside the casing 1, the concentrated sludge and sediment accumulated at the drain port 14 and the inlet of the vertical pipe 15 are smoothly discharged outside the casing 1 through the vertical pipe 15.

[0035] After the sewage discharge stage is completed, the control system controls the motor 61 to reverse. When the support plate 63 returns, it drives the slider 86 to move backward via the linkage plate 83 and the support rod 82. The movement of the connecting rod 84 mechanism causes the push plate 85 to be lifted upward, and the bottom wall scraper 851 leaves the opening area of ​​the vertical pipe 15 and disengages from the trigger rod 95. Once the forced pressure on the trigger rod 95 is removed, the movable top plate 92 returns to its original position under the elastic restoring force of multiple second springs 94, pressing the sealing gasket 93 back onto the tail end face of the vertical pipe 15, and the sewage discharge valve 9 automatically returns to its normally closed sealing state.

[0036] As motor 61 continues to reverse, support plate 63, flexible scraper 5, and pusher plate 85 gradually return to their initial positions. The bottom wall scraper 851 of pusher plate 85 also gently adheres to or slightly hovers above the inner bottom wall of casing 1. The entire process of scraping and cleaning dirt from the transparent tube and directional pushing and discharging of bottom sediment is completed automatically and in coordination, without the need for manual disassembly of parts or machine shutdown. This ensures the long-term, continuous, and efficient operation of the ultraviolet disinfection system, meeting environmental protection requirements for wastewater discharge compliance.

[0037] By cleverly coupling the drive mechanism, flexible scraper, and linked sewage discharge mechanism, a single motor can simultaneously drive the flexible scraper to advance along the transparent tube to scrape away scale, while also driving the pusher plate to move forward along the bottom wall of the casing and concentrate the sludge deposited at the bottom, pushing it towards the sewage outlet. The two processes of scraping the tube to remove scale and collecting and pushing the bottom sludge are completed in one step, requiring no additional power source.

[0038] The drain valve operates using a purely mechanical trigger. After the pusher plate pushes the sludge above the vertical pipe and is stopped by the limit bar, the motor continues to rotate, forcing the pusher plate downwards. The bottom wall scraper mechanically presses against the trigger rod, forcibly opening the normally closed sealing gasket to discharge the sludge. After discharge, the motor reverses, the pusher plate returns to its original position, the trigger rod releases pressure, and the sealing gasket automatically closes the valve under the action of the second spring. The entire process requires no electric actuator or solenoid valve, resulting in a compact structure that does not increase the electrical control burden. Simultaneously, the pusher plate's compression and the static pressure of the sewage assist in discharge, ensuring smooth and thorough sludge removal. Furthermore, when the pusher plate is forced to move vertically downwards after being limited and enters the vertical pipe, its bottom wall scraper effectively shields the vertical pipe, preventing a large amount of sewage from flowing out during discharge, reducing water consumption, maintaining a clean working environment, and thus achieving online treatment.

[0039] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A wastewater treatment device based on environmental protection, comprising a housing (1), wherein the housing (1) is provided with an inlet pipe (11) and an outlet pipe (12), characterized in that, Also includes: Multiple transparent tubes (2) are arranged in a matrix on one side wall of the housing (1). Each transparent tube (2) is detachably installed on the side wall by a sealing assembly (3). The transparent tube (2) has a first end that extends into the inner cavity of the housing (1) and a second end that is located outside the housing (1). A sealing plug (21) is inserted into the first end. Multiple ultraviolet lamp strips (4), each ultraviolet lamp strip (4) is inserted from the second end of the corresponding transparent tube (2) and is housed within the transparent tube (2); A flexible scraper (5) has multiple perforations (51) arranged in a matrix on it. The multiple perforations (51) correspond one-to-one with multiple transparent tubes (2) and are interference-fitted onto each transparent tube (2). The flexible scraper (5) can slide along the axial direction of the transparent tube (2). A drive mechanism (6) is installed on the housing (1) and driven to connect with the flexible scraper (5), which is used to drive the flexible scraper (5) to move back and forth along the axial direction of the transparent tube (2) to scrape off the scale attached to the outer wall of the transparent tube (2).

2. The wastewater treatment equipment based on environmental protection according to claim 1, characterized in that, The drive mechanism (6) includes a motor (61), a lead screw (62) and a support plate (63). The motor (61) is fixed on the housing (1), and one of its output shafts extends into the housing (1) and is coaxially and fixedly connected to the lead screw (62); A nut seat (631) is fixed on the support plate (63), and the nut seat (631) is threaded to the lead screw (62). The support plate (63) and the flexible scraper (5) are elastically connected by a plurality of first springs (64). The plurality of first springs (64) are distributed in a matrix, and the two ends of each first spring (64) are fixed to the support plate (63) and the flexible scraper (5) respectively. The support plate (63) has a plurality of through holes (632) that correspond one-to-one with the transparent tube (2), and the diameter of the through holes (632) is larger than the outer diameter of the transparent tube (2); The flexible scraper (5) has a horizontal hole (52), and the lead screw (62) is arranged through the horizontal hole (52).

3. The wastewater treatment equipment based on environmental protection according to claim 1, characterized in that, The sealing assembly (3) includes an externally threaded tube (31), an elastic sealing sleeve (32), and a locking nut (33). The housing (1) has multiple mounting holes (131) on its side wall. The external threaded tube (31) is fixed in the mounting hole (131). The transparent tube (2) passes through the external threaded tube (31). The elastic sealing sleeve (32) is sleeved on the transparent tube (2) and located inside the external threaded tube (31). The locking nut (33) is threaded onto the external threaded tube (31), and a limiting ring (331) is formed at one end of the locking nut (33). The limiting ring (331) presses against the end of the elastic sealing sleeve (32), causing the elastic sealing sleeve (32) to deform and seal the gap between the transparent tube (2) and the external threaded tube (31). The ultraviolet lamp strip (4) passes through the inner cavity of the limiting ring (331), the external threaded tube (31) and the transparent tube (2) in sequence.

4. The wastewater treatment equipment based on environmental protection according to claim 3, characterized in that, Each of the ultraviolet lamp strips (4) is fitted with a plurality of support positioning sleeves (42), the outer edge of which is supported on the inner wall of the transparent tube (2) to maintain the ultraviolet lamp strip (4) in the center position inside the transparent tube (2).

5. The wastewater treatment equipment based on environmental protection according to claim 1, characterized in that, The housing (1) is a rectangular housing, and the housing (1) is fixed on a frame (7).

6. The wastewater treatment equipment based on environmental protection according to claim 2, characterized in that, It also includes a linkage sewage discharge mechanism (8), which includes two slide rails (81), a support rod (82), a linkage plate (83), four connecting rods (84) and a push plate (85). The two slide rails (81) are respectively fixed on the two opposite inner sidewalls of the housing (1), and a slider (86) is slidably installed on each slide rail (81). The two ends of the support rod (82) are fixedly connected to the two sliders (86) respectively. One end of the linkage plate (83) is fixedly sleeved on the support rod (82), and the other end is fixedly connected to the support plate (63). Each slider (86) is hinged with two connecting rods (84), and the lower ends of the four connecting rods (84) are all hinged to the push plate (85), which is slidably mounted on the inner bottom wall of the housing (1). A drain port (14) is provided on the bottom wall of the casing (1), and a vertical pipe (15) extending downward is connected to the drain port (14). A drain valve (9) is provided at the end of the vertical pipe (15). When the drive mechanism (6) moves the support plate (63), the slider (86) moves along the slide rail (81) through the linkage plate (83) and the support rod (82), and then the push plate (85) moves on the bottom wall of the casing (1) by the connecting rod (84) to push the deposits toward the vertical pipe (15).

7. The wastewater treatment equipment based on environmental protection according to claim 6, characterized in that, A bottom wall scraper (851) is fixed on the bottom wall of the push plate (85), and the bottom wall scraper (851) is in contact with the inner bottom wall of the housing (1).

8. The wastewater treatment equipment based on environmental protection according to claim 7, characterized in that, The drain valve (9) includes a fixed seat (91), a movable top plate (92), a sealing gasket (93), a plurality of second springs (94) and at least one trigger rod (95). The fixed base (91) is fixedly connected to the housing (1), and a plurality of second springs (94) arranged in a rectangular shape are fixed on the fixed base (91). The upper end of each second spring (94) is fixedly connected to the movable top plate (92). The sealing gasket (93) is fixed to the upper surface of the movable top plate (92) and elastically abuts against the tail end face of the vertical pipe (15) to achieve a seal; The trigger rod (95) is fixed on the movable top plate (92) and extends upward. The sealing gasket (93) has a hole through which the trigger rod (95) passes. The top end of the trigger rod (95) extends into the vertical tube (15). On the inner bottom wall of the housing (1), a limiting strip (16) is fixed on the side near the top of the vertical tube (15) to limit the movement of the push plate (85). When the push plate (85) moves to the top of the vertical pipe (15), the push plate (85) moves downward, so that the bottom wall scraper (851) can press against the top of the trigger rod (95), thereby driving the movable top plate (92) to compress the second spring (94) and move downward, so that the sealing gasket (93) is separated from the tail end of the vertical pipe (15) and the drain valve (9) is opened.

9. The wastewater treatment equipment based on environmental protection according to claim 8, characterized in that, A guide frame (96) is fixed on the inner wall of the vertical tube (15). The trigger rod (95) is movably inserted into the guide frame (96). The bottom wall scraper (851) of the push plate (85) can abut against the upper surface of the guide frame (96).

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