Backflow prevention water pipe for water purifier

Abstract

The utility model belongs to the technical field of water pipes of water purifiers, and particularly relates to an anti-backflow water pipe for a water purifier, which comprises a mounting seat, one side of the mounting seat is provided with an inner cambered surface, the inner cambered surface is provided with a sliding chute, two sliding seats are slidably connected in the sliding chute, fixed seats are fixedly connected onto the two sliding seats, water pipes are mounted on the two fixed seats, and the water pipes are fixedly connected onto the inner cambered surface. A shell is arranged between the two water pipes, and an anti-backflow assembly is arranged in the shell; the fixing seat and the shell are arranged, the two sliding seats are close to the middle, the annular protrusions on the fixing seat are inserted into the annular grooves in the two sides of the shell, the two fixing pipes extrude and fix the shell from the two sides, the operation directions are opposite during disassembly, assembly and disassembly are convenient, the speed is high, and time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifier water pipes, in particular to an anti-backflow water pipe for a water purifier. Background Technique

[0002] A water purifier is a device that can improve water quality and provide people with safe and healthy drinking water. Common filtration technologies include physical filtration: through filters with different pore sizes, such as PP cotton, activated carbon, etc., to filter out large particulate impurities such as sediment, rust, and suspended matter in water; activated carbon adsorption: using the porous structure of activated carbon to adsorb organic substances, residual chlorine, odors, etc. in water; reverse osmosis: under a certain pressure, allowing water to pass through a semi-permeable membrane, and only water molecules can pass through, while dissolved solids, heavy metal ions, bacteria, etc. in water are blocked outside.

[0003] At present, in order to prevent water from flowing back, a check valve is usually installed on the pipeline of the water purifier. The function of the check valve is to ensure that the water flow can only flow in one direction, thus avoiding the problem of water backflow. However, when installing the check valve, two sections of water pipes need to be installed on both sides of the check valve. During installation, it is necessary to align the water pipe joint with the check valve joint and then tighten it with a wrench. The installation and disassembly operations are relatively troublesome. Summary of the Invention

[0004] In order to solve the above problems, the utility model proposes an anti-backflow water pipe for a water purifier to more precisely solve the above-mentioned problems.

[0005] The utility model is realized through the following technical solutions:

[0006] The utility model proposes an anti-backflow water pipe for a water purifier, including a mounting seat. One side of the mounting seat is provided with an inner arc surface, and the inner arc surface is provided with a sliding groove. Two sliding seats are slidably connected in the sliding groove. Fixed seats are fixedly connected to both sliding seats. Water pipes are installed on both fixed seats. A shell is arranged between the two water pipes. An anti-backflow component is arranged inside the shell, and a fixing component is arranged between the shell and the fixed seat.

[0007] Further, the fixing component includes a fixing pipe. The fixing pipe is fixedly connected to the fixed seat. The water pipe is fixed on the inner wall of the fixing pipe. Circular protrusions are arranged on one side of the two fixing pipes facing each other. A circular through groove is arranged on one side of the shell. Annular grooves are arranged on both sides of the shell. The annular grooves are matched with the circular protrusions. A threaded rod is rotatably connected to the mounting seat. Two sets of opposite threads are arranged on the threaded rod. The threaded rod penetrates through the sliding seat and is threadedly connected to the sliding seat.

[0008] Further, rubber rings are fixedly connected to one side of the two fixing pipes facing each other. The rubber rings are matched with the annular grooves.

[0009] Further, the threaded rod passes through the mounting seat. A clamping plate is fixedly connected to one side of the mounting seat. A polygonal rod is fixedly connected to one side of the threaded rod. A control ring is slidably connected to the polygonal rod. The clamping plate cooperates with the control ring.

[0010] Further, the control ring is made of metal. Anti-slip rods are fixedly connected to the outer side of the control ring. Plate-shaped magnets are fixedly connected to the inner side of the clamping plate. A limiting plate is fixedly connected to one end of the polygonal rod.

[0011] Further, the anti-backflow assembly includes a fixed block. The fixed block is located inside the housing and fixedly connected to the housing. A circular through groove is provided on the fixed block. A first fixing ring is fixedly connected to the inner wall of the circular through groove. The first fixing ring is located at one end of the circular through groove. A support seat is fixedly connected to the inner wall of the circular through groove. A sliding rod is slidably connected to the support seat. A first blocking block is fixedly connected to one end of the sliding rod.

[0012] Further, a second fixing ring is fixedly connected to the inner wall of the other end of the circular through groove on the fixed block. A second blocking block is fixedly connected to the other end of the sliding rod.

[0013] Further, the first fixing ring and the second fixing ring have the same shape, and the inner side is a conical surface. The first blocking block and the second blocking block have the same shape, and one end of the first blocking block and the second blocking block is conical.

[0014] Advantages of the present utility model:

[0015] For an anti-backflow water pipe for a water purifier proposed by the present utility model, by providing a fixed seat and a housing, rotating the threaded rod makes the two sliding seats approach the middle part. The circular protrusion on the fixed seat is inserted into the annular grooves on both sides of the housing. The middle of the circular protrusion is a water pipe. At this time, the water pipe is communicated with the housing. The water pipes on both sides are communicated through the housing and the anti-backflow assembly. By driving the sliding seat to slide with the threaded rod, the two fixed pipes squeeze and fix the housing from both sides. When disassembling, the operation direction is opposite. The installation and disassembly are both relatively convenient, fast, and time-saving.

[0016] For an anti-backflow water pipe for a water purifier, by providing a first blocking block and a second blocking block, when water flows back, the water flow pushes the second blocking block, so that the second blocking block pushes the first blocking block to block the first fixing ring and the second fixing ring. During the process of the water flow pushing the second blocking block, there is a situation where the backflow water passes through the gap between the second blocking block and the second fixing ring and enters the circular through groove. While the second blocking block blocks the second fixing ring, the first blocking block blocks the first fixing ring, blocking the water that enters the circular through groove and preventing a large amount of backflow water from passing through the fixed block to reach the water purifier. By providing the double anti-backflow effect of the first blocking block and the second blocking block, the blocking effect on the backflow water is increased. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the mounting base of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the clamping plate and the control ring of the present utility model.

[0021] The reference numerals are as follows: 1, mounting base; 2, sliding seat; 3, fixed seat; 4, water pipe; 5, housing; 6, anti-backflow assembly; 61, fixed block; 62, first fixing ring; 63, support seat; 64, sliding rod; 65, first blocking block; 7, fixing assembly; 71, fixing pipe; 72, circular protrusion; 73, threaded rod; 8, rubber ring; 9, clamping plate; 10, polygonal rod; 11, control ring; 12, magnet; 13, limiting plate; 14, second fixing ring; 15, second blocking block. Specific embodiments

[0022] In order to more clearly and completely illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the accompanying drawings.

[0023] Please refer to Figures 1 - 4, the present utility model provides an anti-backflow water pipe 4 for a water purifier, which includes a mounting seat 1. One side of the mounting seat 1 is provided with an inner arc surface, and a chute is provided on the inner arc surface. Two sliding seats 2 are slidably connected in the chute. Fixed seats 3 are fixedly connected to both of the two sliding seats 2. Water pipes 4 are installed on both of the two fixed seats 3. A housing 5 is arranged between the two water pipes 4. An anti-backflow component 6 is arranged inside the housing 5. A fixing component 7 is arranged between the housing 5 and the fixed seat 3. The fixing component 7 includes a fixing pipe 71, and the fixing pipe 71 is fixedly connected to the fixed seat 3. The water pipe 4 is fixed on the inner wall of the fixing pipe 71. Circular ring-shaped protrusions 72 are provided on one side of the two fixing pipes 71 facing each other. A circular through groove is provided on one side of the housing 5. Annular grooves are provided on both sides of the housing 5. The annular grooves are matched with the circular ring-shaped protrusions 72. A threaded rod 73 is rotatably connected to the mounting seat 1. Two sets of opposite threads are provided on the threaded rod 73. The threaded rod 73 penetrates through the sliding seat 2 and is threadedly connected to the sliding seat 2. One of the two water pipes 4 on both sides is communicated with the water purifier, and the other extends to the outside. An anti-backflow component 6 is installed between the two water pipes 4 to prevent water from flowing back into the water purifier. The anti-backflow component 6 is installed in the housing 5. The housing 5 is detachably arranged. During installation, the threaded rod 73 is rotated to make the two sliding seats 2 approach the middle part, and the housing 5 is placed in the middle. The housing 5 is circular, and the outer side is attached to the inner arc surface. During movement, the circular ring-shaped protrusions 72 on the fixed seat 3 are inserted into the annular grooves on both sides of the housing 5. The middle of the circular ring-shaped protrusion 72 is the water pipe 4. At this time, the water pipe 4 is communicated with the housing 5. The two water pipes 4 on both sides are communicated through the housing 5 and the anti-backflow component 6. By driving the sliding seat 2 to slide through the threaded rod 73, the two fixing pipes 71 squeeze and fix the housing 5 from both sides. During disassembly, the operation direction is opposite. Both installation and disassembly are relatively convenient, with a fast speed and time saving.

[0024] As Figure 2 shown, rubber rings 8 are fixedly connected to one side of the two fixing pipes 71 facing each other. The rubber rings 8 are matched with the annular grooves. When the circular ring-shaped protrusions 72 are inserted into the annular grooves, the rubber rings 8 are squeezed, making the connection between the fixing pipe 71 and the housing 5 tighter and avoiding water leakage.

[0025] As Figure 3 With Figure 4As shown, the threaded rod 73 passes through the mounting seat 1. One side of the mounting seat 1 is fixedly connected to the clamping plate 9. One side of the threaded rod 73 is fixedly connected to the polygonal rod 10. A control ring 11 is slidably connected to the polygonal rod 10. The clamping plate 9 cooperates with the control ring 11. The material of the control ring 11 is metal. The outer side of the control ring 11 is fixedly connected with anti-slip rods. The inner side of the clamping plate 9 is fixedly connected with a plate-shaped magnet 12. One end of the polygonal rod 10 is fixedly connected to the limiting plate 13. When it is necessary to rotate the threaded rod 73 to control the movement of the sliding seat 2, at this time, the control ring 11 is pulled to make the control ring 11 away from the clamping plate 9, and then the control ring 11 is rotated to drive the threaded rod 73 to rotate through the polygonal rod 10. When the housing 5 is installed, at this time, the control ring 11 is pushed into the clamping plate 9. The clamping plate 9 fits the control ring 11. The magnet 12 adsorbs the control ring 11 to restrain the control ring 11. The clamping plate 9 prevents the control ring 11 from rotating. The magnet 12 makes the control ring 11 unable to leave the clamping plate 9, thereby making the threaded rod 73 unable to rotate and keeping the fixed pipe 71 in a state of squeezing and fixing the housing 5 to avoid loosening.

[0026] As Figure 2 As shown, the anti-backflow assembly 6 includes a fixed block 61. The fixed block 61 is located inside the housing 5 and is fixedly connected to the housing 5. The fixed block 61 is provided with a circular through groove. The inner wall of the circular through groove is fixedly connected to the first fixing ring 62. The first fixing ring 62 is located at one end of the circular through groove. The inner wall of the circular through groove of the fixed block 61 is fixedly connected to the support seat 63. A sliding rod 64 is slidably connected to the support seat 63. One end of the sliding rod 64 is fixedly connected to the first blocking block 65. The inner wall of the other end of the circular through groove of the fixed block 61 is fixedly connected to the second fixing ring 14. The other end of the sliding rod 64 is fixedly connected to the second blocking block 15. The first fixing ring 62 and the second fixing ring 14 have the same shape, and the inner side is a conical surface. The first blocking block 65 and the second blocking block 15 have the same shape. One end of the first blocking block 65 and the second blocking block 15 is conical. When in use, the water flow of the water purifier enters the housing 5, pushes the first blocking block 65, and through the sliding rod 64, makes the first blocking block 65 leave the first fixing ring 62, and the second blocking block 15 leaves the second blocking block 15. The water flow passes through the housing 5 and the fixed block 61 and flows out from the water pipe 4 on the other side. When the water flows back, the water flow pushes the second blocking block 15, so that the second blocking block 15 pushes the first blocking block 65 to block the first fixing ring 62 and the second fixing ring 14. In the process of the water flow pushing the second blocking block 15, there is a situation where the backflow water passes through the gap between the second blocking block 15 and the second fixing ring 14 and enters the circular through groove. However, at this time, the backflow water can only reach the circular through groove of the fixed block 61. Then, while the second blocking block 15 blocks the second fixing ring 14, the first blocking block 65 blocks the first fixing ring 62 to block the water entering the circular through groove and prevent a large amount of backflow water from passing through the fixed block 61 to reach the water purifier. By setting the double anti-backflow effect of the first blocking block 65 and the second blocking block 15, the blocking effect on the backflow water is increased.

[0027] Working principle: Pull the control ring 11 to move the control ring 11 away from the clamping plate 9, and then rotate the control ring 11 to drive the threaded rod 73 to rotate through the polygonal rod 10, so that the two sliding seats 2 approach the middle part. The annular protrusion 72 on the fixed seat 3 is inserted into the annular grooves on both sides of the housing 5 to squeeze and fix the housing 5 from both sides. Push the control ring 11 into the clamping plate 9. The clamping plate 9 fits the control ring 11, and the magnet 12 adsorbs the control ring 11. The water flow of the water purifier enters the housing 5, pushes the first plugging block 65, and through the sliding rod 64, makes the first plugging block 65 leave the first fixing ring 62, and the second plugging block 15 leaves the second plugging block 15. The water flow passes through the housing 5 and the fixing block 61 and flows out from the water pipe 4 on the other side. When the water flows back, the water flow pushes the second plugging block 15, so that the second plugging block 15 pushes the first plugging block 65 to block the first fixing ring 62 and the second fixing ring 14.

[0028] Of course, the present utility model can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by ordinary technical personnel in the art without any creative labor all fall within the scope protected by the present utility model.

Claims

1. A backflow prevention water pipe for a water purifier, characterized in that, It includes a mounting base (1). One side of the mounting base (1) is provided with an inner arc surface. The inner arc surface is provided with a chute. Two sliding seats (2) are slidably connected in the chute. Fixed seats (3) are fixedly connected to both of the two sliding seats (2). Water pipes (4) are installed on both of the two fixed seats (3). A housing (5) is arranged between the two water pipes (4). An anti-backflow assembly (6) is arranged inside the housing (5). A fixing assembly (7) is arranged between the housing (5) and the fixed seat (3).

2. The anti-backflow water pipe for a water purifier according to claim 1, wherein The fixing assembly (7) includes a fixing pipe (71). The fixing pipe (71) is fixedly connected to the fixed seat (3). The water pipe (4) is fixed to the inner wall of the fixing pipe (71). Circular protrusions (72) are arranged on one side of the two fixing pipes (71) facing each other. A circular through groove is arranged on one side of the housing (5). Annular grooves are arranged on both sides of the housing (5). The annular grooves are matched with the circular protrusions (72). A threaded rod (73) is rotatably connected to the mounting base (1). Two sets of opposite threads are arranged on the threaded rod (73). The threaded rod (73) penetrates through the sliding seat (2) and is threadedly connected to the sliding seat (2).

3. The anti-backflow water pipe for a water purifier according to claim 2, characterized in that, Rubber rings (8) are fixedly connected to one side of the two fixing pipes (71) facing each other. The rubber rings (8) are matched with the annular grooves.

4. The anti-backflow water pipe for a water purifier according to claim 2, characterized in that, The threaded rod (73) penetrates through the mounting base (1). A clamping plate (9) is fixedly connected to one side of the mounting base (1). A polygonal rod (10) is fixedly connected to one side of the threaded rod (73). A control ring (11) is slidably connected to the polygonal rod (10). The clamping plate (9) is matched with the control ring (11).

5. The anti-backflow water pipe for a water purifier according to claim 4, characterized in that, The control ring (11) is made of metal. Anti-slip rods are fixedly connected to the outer side of the control ring (11). A plate-shaped magnet (12) is fixedly connected to the inner side of the clamping plate (9). A limiting plate (13) is fixedly connected to one end of the polygonal rod (10).

6. The anti-backflow water pipe for a water purifier according to claim 1, characterized in that, The anti-backflow assembly (6) includes a fixed block (61). The fixed block (61) is located inside the housing (5) and is fixedly connected to the housing (5). A circular through groove is arranged on the fixed block (61). A first fixing ring (62) is fixedly connected to the inner wall of the circular through groove. The first fixing ring (62) is located at one end of the circular through groove. A support seat (63) is fixedly connected to the inner wall of the circular through groove. A sliding rod (64) is slidably connected to the support seat (63). A first blocking block (65) is fixedly connected to one end of the sliding rod (64).

7. The anti-backflow water pipe for a water purifier according to claim 6, characterized in that, A second fixing ring (14) is fixedly connected to the inner wall of the other end of the circular through groove on the fixed block (61). A second blocking block (15) is fixedly connected to the other end of the sliding rod (64).

8. The anti-backflow water pipe for a water purifier according to claim 7, wherein, The first fixing ring (62) and the second fixing ring (14) have the same shape, and the inner side is a conical surface. The first blocking block (65) and the second blocking block (15) have the same shape, and one end of the first blocking block (65) and the second blocking block (15) is conical.

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