Sand filtering device for water quality purification

Abstract

The utility model relates to the field of water quality purification devices, and discloses a sand filtering device for water quality purification, which comprises a box body, the top of the box body is fixedly connected with a box cover, the top of the box cover is fixedly connected with a track, the inner side edge of the track is fixedly connected with a clamping block, the side edge of the clamping block is slidably connected with a sliding plate, and the top of the sliding plate is provided with a limiting hole. A plug pin is arranged in the limiting hole, a lifting piece is fixedly connected to the other end of the plug pin, a second spring is arranged at the top of the lifting piece, a drawing groove is formed in the side edge of the front portion of the box body, a sand filtering block is arranged in the drawing groove, and a sealing plate is arranged on the side face of the front portion of the sand filtering block. According to the utility model, the sand filtering block adopts the structural design of the deflector rod, the positioning rod and the like, so that the sand filtering block can be quickly locked and unlocked, and the sand filtering block can be conveniently replaced and maintained; the water inlet pipe is matched with the rail clamping block through the sliding plate clamping groove, the water inlet pipe can be detached only by unlocking the sliding plate when a water source is replaced, the device can be flexibly moved by matching with bottom wheels, and the water inlet pipe is rapidly switched.

Description

Technical Field

[0001] This utility model relates to the field of water purification devices, and in particular to a sand filter device for water purification. Background Technology

[0002] In the field of water purification, sand filtration devices are a common type of water treatment equipment, widely used in industrial wastewater treatment, drinking water purification, and other scenarios. Their core function is to remove suspended solids and colloidal impurities from the water through a filter sand layer, thereby achieving water purification. With increasingly stringent environmental protection requirements and diversified water treatment needs, sand filtration devices face higher technical demands in terms of structural stability, ease of maintenance, and application flexibility.

[0003] Currently, traditional sand filtration systems have significant shortcomings in terms of filter sand replacement and inlet pipe connection. For example, filter sand blocks are usually bolted or embedded, requiring tools to disassemble the unit for replacement, which is cumbersome and time-consuming. If the sealing structure is poorly designed (e.g., a single rubber ring seal), sewage leakage may occur during disassembly, affecting maintenance efficiency and increasing the risk of environmental pollution. Furthermore, inlet pipes are mostly fixed connections. When switching water sources, the pipes must be reinstalled or the entire heavy unit moved. Traditional units lack movable parts at the bottom, making them inconvenient to move and prone to loosening and leakage at pipe connections, making them unsuitable for rapid switching between different water sources. These problems result in high maintenance costs and insufficient flexibility in existing sand filtration systems, necessitating structural innovation to improve their reliability and operational efficiency.

[0004] In response to this technical problem, this application proposes a sand filter device for water purification. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sand filter device for water purification. The filter sand block is slidably connected to the pull-out groove via a side sealing ring. Utilizing a lever, positioning rod, and other structural designs, the filter sand block can be quickly locked and unlocked, allowing for convenient replacement and maintenance of the filter sand without tools. The water inlet pipe is guided by a sliding plate slot and a track block, combined with a positioning and locking structure such as a pin. When changing the water source, simply unlock the sliding plate and remove the water inlet pipe. With the help of the bottom wheels, the device can be moved flexibly, enabling rapid switching between different water sources.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A sand filter device for water purification includes a housing. A cover is fixedly connected to the top of the housing, and a track is fixedly connected to the top of the cover. A locking block is fixedly connected to the inner side of the track, and a sliding plate is slidably connected to the side of the locking block. A limit hole is formed on the top of the sliding plate, and a pin is provided inside the limit hole. A lifting piece is fixedly connected to the other end of the pin, and a second spring is provided on the top of the lifting piece. A pull-out groove is formed on the front side of the housing, and a filter sand block is provided inside the pull-out groove. A sealing plate is provided on the front side of the filter sand block. A positioning hole is formed at the front end of the side of the pull-out groove, and a positioning rod is provided inside the positioning hole. A slider is fixedly connected to the other end of the positioning rod, and a first spring is provided on the other end of the slider. A lever is provided on the side of the positioning rod.

[0008] Furthermore, the second spring is sleeved on the outside of the pin, the second spring is disposed inside the track, and the lifting piece is disposed inside the track.

[0009] Furthermore, the spring is disposed inside the sealing plate, and the slider is disposed inside the sealing plate.

[0010] Furthermore, the filter block is provided with a rubber ring on its side, the slide plate is provided with a sealing block on its right side, and the slide plate is provided with slots on its front and rear sides.

[0011] Furthermore, the card block is disposed inside the card slot.

[0012] Furthermore, a water inlet pipe is fixedly connected to the top of the skateboard.

[0013] Furthermore, a water outlet is fixedly connected to the bottom side of the box.

[0014] Furthermore, wheels are fixedly connected to the four corners of the bottom of the box.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the filter sand block slides through the side sealing ring and the pull-out groove. Moving the lever causes the positioning rod to compress the spring and retract into the sealing plate, pushing the sealing plate to form a tight seal. After releasing the lever, the spring pushes the positioning rod into the positioning hole to lock, thus fixing the position of the filter sand block. When it needs to be replaced, moving the lever unlocks the filter sand block and pulls it out. No tools are required, which can realize the quick replacement and maintenance of the filter sand in the device.

[0017] 2. In this utility model, the water inlet pipe is guided to slide by the side slot of the slide plate and the track block. After pulling the pin to compress the spring and push the slide plate to the limit position, it is released. The spring pushes the pin to insert into the limit hole to lock the slide plate. The rubber sealing material at the bottom of the slide plate is in contact with the track, and the side annular sealing block is connected to the track groove to form a double seal to prevent water leakage. When changing the water source, pull the pin to unlock, slide the slide plate in the opposite direction to remove the water inlet pipe, and the device can be moved flexibly with the bottom wheels to realize quick switching of water source. The operation is convenient and the sealing is reliable. Attached Figure Description

[0018] Figure 1 This is a perspective view of a sand filter device for water purification proposed in this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of a filter sand block for a sand filter device for water purification proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the slide plate of a sand filter device for water purification proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the track section of a sand filter device for water purification proposed in this utility model;

[0023] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0024] Legend:

[0025] 1. Box body; 2. Box cover; 3. Track; 4. Locking block; 5. Slide plate; 6. Water inlet pipe; 7. Sealing plate; 8. Positioning hole; 9. Filter block; 10. Rubber ring; 11. Positioning rod; 12. Toggle lever; 13. Slider; 14. Spring 1; 15. Limiting hole; 16. Sealing block; 17. Slot; 18. Pin; 19. Spring 2; 20. Lifting plate; 21. Water outlet; 22. Wheel; 23. Pull-out slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-3An embodiment of this utility model provides a sand filter device for water purification, comprising a housing 1, a housing cover 2 fixedly connected to the top of the housing 1, a track 3 fixedly connected to the top of the housing cover 2, a locking block 4 fixedly connected to the inner side of the track 3, a sliding plate 5 slidably connected to the side of the locking block 4, a limiting hole 15 opened at the top of the sliding plate 5, a pin 18 provided inside the limiting hole 15, a lifting piece 20 fixedly connected to the other end of the pin 18, a spring 19 provided at the top of the lifting piece 20, a pull-out groove 23 opened on the front side of the housing 1, a filter sand block 9 provided inside the pull-out groove 23, a sealing plate 7 provided on the front side of the filter sand block 9, a positioning hole 8 opened at the front end of the side of the pull-out groove 23, a positioning rod 11 provided inside the positioning hole 8, a slider 13 fixedly connected to the other end of the positioning rod 11, a spring 14 provided at the other end of the slider 13, and a lever 12 provided on the side of the positioning rod 11.

[0028] Specifically, the filter sand block 9, along with the sealing ring 10 fixed to its side, is precisely aligned with the pull-out groove 23 on the front side of the box 1. The filter sand block 9 is smoothly slid along the corresponding groove pre-cut on the inner wall of the box 1. Once the filter sand block 9 is pushed to the corresponding position, the lever 12 is moved in opposite directions, causing the positioning rod 11 fixed on the lever 12 to move inwards towards the sealing plate 7. This, in turn, causes the slider 13 connected to the positioning rod 11 to move inwards towards the sealing plate 7, thereby compressing the spring 14. After the positioning rod 11 is fully retracted into the sealing plate 7, the sealing plate 7 is pushed forward, causing the sealing ring 10, filter sand block 9, and sealing plate 7 to sequentially reach their corresponding positions and tightly engage with the pull-out groove 23. Due to the elastic deformation of the sealing ring 10 and the sealing plate... The sealing gasket 7 facing the side of the housing 1 works together to form a tight seal between the pull-out groove 23 and the sealing plate 7. At this time, when the lever 12 is released, the compressed spring 14 releases its elasticity, pushing the positioning rod 11 outward to the sealing plate 7, and accurately locking into the positioning holes 8 at the front end of both sides inside the pull-out groove 23, thus completing the sealing and locking of the overall structure. When the filter sand needs to be replaced, simply move the lever 12 in opposite directions again to make the positioning rod 11 disengage from the positioning hole 8, release the locking state, and pull the sealing plate 7 outward smoothly. The filter sand block 9 and the sealing ring 10 will slide synchronously along the groove until they are completely separated from the housing 1, realizing the quick and convenient replacement of the filter sand, which is convenient for timely replacement of new filter sand or cleaning and maintenance of old filter sand.

[0029] Reference Figures 4-6Spring 19 is sleeved on the outside of pin 18 and is located inside track 3. Lifting plate 20 is located inside track 3. Spring 14 is located inside sealing plate 7, and slider 13 is located inside sealing plate 7. A rubber ring 10 is provided on the side of filter block 9, a sealing block 16 is provided on the right side of slide plate 5, and slots 17 are provided on the front and rear sides of slide plate 5. Locking block 4 is located inside slot 17. A water inlet pipe 6 is fixedly connected to the top of slide plate 5. A water outlet 21 is fixedly connected to the bottom side of box 1. Wheels 22 are fixedly connected to the four corners of the bottom of box 1.

[0030] Specifically, when installing the water inlet pipe 6, first precisely align the slot 17 on the side of the slide plate 5 with the positioning block 4 on the side of the track 3, so that the two form a sliding guide engagement. Smoothly push the slide plate 5 along the track 3, at which time the pin 18 needs to be pulled upward simultaneously. The upward movement of the pin 18 will drive the lifting plate 20 fixedly connected to it to rise synchronously, thereby compressing the spring 19 and storing elastic potential energy. When the slide plate 5 slides along the track 3 to the bottom limit position, release the pin 18, and the spring 19 releases its elastic force to push the lifting plate 20 downward, so that the other end of the pin 18 is precisely inserted into the limit hole 15 at the top of the track 3, completing the positioning and locking of the slide plate 5. At the same time, the water inlet pipe 6 fixedly connected to the top of the slide plate 5 has reached the working position with the slide plate 5. The bottom of the slide plate 5 and the top of the track 3 are both made of rubber sealing material. When the slide plate 5 is completely locked, the two are tightly fitted to form a seal. The annular sealing block 16 fixedly connected to the side of the slide plate 5 will complete the engagement with the corresponding annular groove at the bottom of the track 3. The connection forms a sealed structure, ensuring that no leakage occurs when water is released into the tank 1 through the water passage opening at the fixed position of the water inlet pipe 6 connecting the slide plate 5, the track 3, and the tank cover 2. The clean water after the sewage passes through the filter sand can flow out from the outlet 21 at the bottom of the tank 1. Correspondingly, when it is necessary to change the position of the filtered water source, pull the pin 18 upward to disengage it from the limiting hole 15, release the locking state, slide the slide plate 5 in the opposite direction along the track 3 until the slot 17 on the side of the slide plate 5 completely disengages from the locking block 4 on the side of the track 3, and the water inlet pipe 6 can be quickly removed. The entire filter device can be flexibly moved to the new water source position by the wheels 22 installed at the bottom of the tank 1, realizing the rapid switching of different water sources for filtration operations.

[0031] Working principle: When this device is working, the filter sand block 9, along with the side sealing ring 10, is aligned with the pull-out groove 23 at the front end of the housing 1 and pushed smoothly into the inner wall groove. After the filter sand block 9 reaches the corresponding position, the lever 12 is moved in opposite directions, causing the positioning rod 11 fixed on the lever 12 to move into the sealing plate 7, which drives the slider 13 to compress the spring 14. After the positioning rod 11 is fully retracted into the sealing plate 7, the sealing plate 7 is pushed further, so that the sealing ring 10 and the sealing gasket on the sealing plate 7 are tightly fitted with the pull-out groove 23 to form a seal. At this time, the lever 12 is released, and the spring 14 releases its elastic force to push the positioning rod 11 into the positioning hole 8 at the front end of the pull-out groove 23 to complete the locking. When changing the filter sand, the lever 12 is moved again to make the positioning rod 11 disengage from the positioning hole 8, and the sealing plate 7 can be pulled outward, causing the filter sand block 9 and the sealing ring 10 to slide out of the housing 1 simultaneously. When installing the inlet pipe 6, align the side slot 17 of the slide plate 5 with the side block 4 of the track 3 and slide it. Simultaneously, pull up the pin 18 to compress the second spring 19. After the slide plate 5 slides to the limit position, release the pin 18. The second spring 19 pushes the pin 18 into the limit hole 15 at the top of the track 3 and locks it in place. At this time, the bottom of the slide plate 5 is in contact with the rubber sealing material at the top of the track 3, and the side sealing block 16 is connected to the annular groove of the track 3, ensuring that there is no leakage when the inlet pipe 6 is drained. When it is necessary to change the water source position, pull up the pin 18 to release the lock, slide the slide plate 5 in the opposite direction to remove the inlet pipe 6, and move it using the wheel 22 at the bottom of the tank 1. Wastewater flows into the tank 1 through the inlet pipe 6, is filtered by the filter sand block 9, and flows out from the outlet 21.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sand filter device for water purification, comprising a housing (1), characterized in that: The top of the box body (1) is fixedly connected to a box cover (2), the top of the box cover (2) is fixedly connected to a track (3), a locking block (4) is fixedly connected to the inner side of the track (3), a sliding plate (5) is slidably connected to the side of the locking block (4), a limiting hole (15) is opened on the top of the sliding plate (5), a pin (18) is provided inside the limiting hole (15), a lifting piece (20) is fixedly connected to the other end of the pin (18), and a spring (19) is provided on the top of the lifting piece (20). The front side of the body (1) is provided with a pull-out groove (23), and a filter sand block (9) is provided inside the pull-out groove (23). A sealing plate (7) is provided on the front side of the filter sand block (9). A positioning hole (8) is provided at the front end of the side of the pull-out groove (23). A positioning rod (11) is provided inside the positioning hole (8). A slider (13) is fixedly connected to the other end of the positioning rod (11). A spring (14) is provided at the other end of the slider (13). A lever (12) is provided on the side of the positioning rod (11).

2. The sand filter device for water purification according to claim 1, characterized in that: The second spring (19) is sleeved on the outside of the pin (18), the second spring (19) is set inside the track (3), and the lifting piece (20) is set inside the track (3).

3. The sand filter device for water purification according to claim 1, characterized in that: The spring (14) is disposed inside the sealing plate (7), and the slider (13) is disposed inside the sealing plate (7).

4. The sand filter device for water purification according to claim 1, characterized in that: The filter block (9) is provided with a rubber ring (10) on its side, the slide plate (5) is provided with a sealing block (16) on its right side, and the slide plate (5) is provided with slots (17) on its front and rear sides.

5. A sand filter device for water purification according to claim 1, characterized in that: The card block (4) is located inside the card slot (17).

6. A sand filter device for water purification according to claim 1, characterized in that: A water inlet pipe (6) is fixedly connected to the top of the skateboard (5).

7. A sand filter device for water purification according to claim 1, characterized in that: The bottom side of the box (1) is fixedly connected to a water outlet (21).

8. A sand filter device for water purification according to claim 1, characterized in that: The bottom of the box (1) is equipped with wheels (22).

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