A quick-replaceable pre-filter for a water purification device

Abstract

This utility model discloses a quick-replaceable pre-filter for a water purification device, including a delivery pipe. A filter head is threadedly connected to the lower end of the delivery pipe, and a nozzle is fixed to the lower end of the filter head. A mounting plate is provided on one side of the filter head, and fixing plates are fixed to both the upper and lower ends of the mounting plate. An expansion mechanism connects the two fixing plates, and a second moving block is fixed to one end of the expansion mechanism. Two arc-shaped clamping rings are fixed to one side of the second moving block, with the two arc-shaped clamping rings on the same side corresponding to each other. This utility model effectively avoids the problem of the filter head loosening due to vibration, pressure changes, etc., after prolonged use, ensuring the firmness and stability of the connection between the filter head and the delivery pipe, improving the reliability of the entire system. The arc-shaped clamping rings can be loosened and tightened by rotating a wheel, making filter head replacement convenient and quick, greatly shortening replacement time and reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of water purification device filter technology, and in particular to a pre-filter for a water purification device that can be quickly replaced. Background Technology

[0002] Showerheads are commonly used in various liquid delivery systems, such as household water pipes and industrial liquid transmission pipelines. To ensure the purity of the sprayed liquid, a filter tube is usually connected between the showerhead and the delivery pipe. Taking a household showerhead as an example, the filter tube can filter impurities and sediment from the water, preventing them from clogging the showerhead and affecting the water flow. In industrial production, the delivery of some chemical liquids also requires a filter tube to ensure the quality of the liquid and prevent impurities from affecting production.

[0003] However, most existing filter tube installation methods rely solely on threaded connections. After prolonged use, this method can easily lead to loosening of the filter tube due to vibrations and pressure changes caused by liquid flow, affecting filtration efficiency and potentially causing liquid leakage. Therefore, we propose a quickly replaceable pre-filter for water purifiers to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pre-filter for a water purification device that can be quickly replaced.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-replaceable pre-filter for a water purifier includes a delivery pipe with a filter head threaded to its lower end. A nozzle is fixed to the lower end of the filter head. A mounting plate is provided on one side of the filter head, and fixing plates are fixed to both the upper and lower ends of the mounting plate. An expansion mechanism is connected between the two fixing plates. A second moving block is fixed to one end of the expansion mechanism. Two arc-shaped clamping rings are fixed to one side of the second moving block, with the two arc-shaped clamping rings on the same side corresponding to each other and clamping onto the circumference of the filter head's sidewall.

[0007] Preferably, the extension mechanism includes a forward and reverse screw rotatably connected to one of the fixed plates, the upper end of the forward and reverse screw rotatably sleeved on the other fixed plate, a rotating wheel fixed to the upper end of the forward and reverse screw rotatably, and a first moving block threaded to both ends of the forward and reverse screw rotatably. Two rotating rods are rotatably connected to one side of the first moving block, and one end of the two rotating rods on the same side is rotatably connected to one end of a second moving block on the same side.

[0008] Preferably, a slider is fixed on one side of the second movable block, and a groove is provided on one side of the mounting plate, with the slider engaging in the groove.

[0009] Preferably, a connecting block is fixed to one side of the arc-shaped clamping ring, and one side of the connecting block is fixed to one side of the moving block.

[0010] Preferably, bolts are provided through all four corners of the mounting plate.

[0011] Preferably, the circumference of the arc-shaped clamping ring is covered with a rubber layer.

[0012] In this utility model, when in use:

[0013] 1. Installation preparation: Fix the mounting plate to one side of the wall or frame with bolts to provide a stable support structure for the subsequent installation and fixation of the filter head;

[0014] 2. Filter head connection: Screw the filter head onto the lower end of the delivery pipe to initially complete the connection between the filter head and the delivery pipe;

[0015] 3. Clamping and reinforcement: Rotating the wheel drives the forward and reverse screws to rotate. Since the threads at both ends of the forward and reverse screws are in opposite directions, when it rotates, the first moving block, which is screwed on both ends, will move towards the middle or both ends at the same time. When the first moving block moves, it drives the second moving block to move through the rotating rod. The slider on one side of the second moving block slides in the groove to ensure the stability of the movement of the second moving block. As the second moving block moves, the arc-shaped clamping ring fixed on one side of the second moving block will also move towards the middle at the same time, thus achieving clamping and reinforcement of the threaded joint of the filter head.

[0016] 4. Replacing the filter head: When it is necessary to replace the filter head, rotate the wheel in the opposite direction to loosen the arc-shaped clamping ring from the filter head, and then you can easily unscrew the filter head from the delivery pipe for replacement.

[0017] This utility model has the following advantages:

[0018] 1. The filter head is clamped and reinforced by the arc-shaped clamping ring, which effectively avoids the problem of the filter head loosening due to vibration, pressure changes and other factors after long-term use, ensuring the firmness and stability of the connection between the filter head and the delivery pipe, and improving the reliability of the entire system.

[0019] 2. Compared with the traditional installation method that relies solely on threaded connection, this device can loosen and tighten the arc-shaped clamping ring by rotating the wheel, making it convenient and quick to replace the filter head, greatly shortening the replacement time and reducing maintenance costs;

[0020] In summary, this utility model effectively avoids the problem of filter heads loosening due to vibration, pressure changes, and other factors after prolonged use, ensuring the firmness and stability of the connection between the filter head and the delivery pipe, improving the reliability of the entire system. The arc-shaped clamping ring can be loosened and tightened by rotating the wheel, making it convenient and quick to replace the filter head, greatly shortening the replacement time and reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is an installation structure diagram of the present invention;

[0022] Figure 2 This is a diagram showing the connection structure between the extension mechanism and the arc-shaped clamping ring of this utility model.

[0023] Figure 3 This is a structural diagram of the extended mechanism of this utility model;

[0024] Figure 4 This is a structural diagram of the arc-shaped clamping ring of this utility model.

[0025] In the diagram: 1 Mounting plate, 2 First moving block, 3 Rotary wheel, 4 Fixed plate, 5 Forward and reverse screws, 6 Rotating rod, 7 Bolt, 8 Slider, 9 Slide groove, 10 Second moving block, 11 Connecting block, 12 Arc-shaped clamping ring, 13 Conveying pipe, 14 Filter head, 15 Sprayer. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-4 A quick-replaceable pre-filter for a water purifier includes a delivery pipe 13, with a filter head 14 threadedly connected to the lower end of the delivery pipe 13. The lower end of the delivery pipe 13 and the filter head 14 are connected by a threaded connection, which features a tight connection and easy disassembly, ensuring a stable connection between the delivery pipe 13 and the filter head 14, and also facilitating subsequent replacement operations.

[0028] A nozzle 15 is fixed at the lower end of the filter head 14. The nozzle 15 can disperse or concentrate the water flow according to actual needs to meet different usage scenarios.

[0029] A mounting plate 1 is provided on one side of the filter head 14. Fixing plates 4 are fixed at both the upper and lower ends of the mounting plate 1. An expansion mechanism is connected between the two fixing plates 4. A moving block 10 is fixed at one end of the expansion mechanism. Two arc-shaped clamping rings 12 are fixed on one side of the moving block 10. The two arc-shaped clamping rings 12 on the same side correspond to each other and are clamped on the side wall of the filter head 14.

[0030] The extension mechanism includes a forward and reverse screw 5 rotatably connected to one of the fixed plates 4. The upper end of the forward and reverse screw 5 is rotatably sleeved on the other fixed plate 4. A rotating wheel 3 is fixed to the upper end of the forward and reverse screw 5. Moving blocks 2 are threaded to both ends of the forward and reverse screw 5. Two rotating rods 6 are rotatably connected to one side of the moving blocks 2. One end of the two rotating rods 6 on the same side is rotatably connected to one end of a moving block 10 on the same side. Since the threads at both ends of the forward and reverse screw 5 are in opposite directions, when the rotating wheel 3 drives the forward and reverse screw 5 to rotate, the moving blocks 2 threaded to both ends will move to the middle or both ends at the same time, realizing the clamping and releasing operation of the filter head 14.

[0031] A slider 8 is fixed on one side of the movable block 10, and a groove 9 is provided on one side of the mounting plate 1. The slider 8 is engaged in the groove 9. When the movable block 10 moves, the slider 8 slides in the groove 9, which ensures the stability of the movement of the movable block 10 and enables the arc-shaped clamping ring 12 to accurately clamp and release the filter head 14.

[0032] A connecting block 11 is fixed to one side of the arc-shaped clamping ring 12, and one side of the connecting block 11 is fixed to one side of the moving block 10. Bolts 7 are provided through the four corners of the mounting plate 1. The mounting plate 1 can be firmly fixed to one side of the wall or frame by the bolts 7, providing a stable support structure for the entire device and ensuring that the device will not shake or shift during use.

[0033] The arc-shaped clamping ring 12 is covered with a rubber layer. The rubber layer can not only increase the friction between the arc-shaped clamping ring 12 and the filter head 14 to ensure the stability of clamping, but also prevent scratches on the surface of the filter head 14.

[0034] In this utility model, when in use:

[0035] 1. Installation preparation: Fix the mounting plate 1 to one side of the wall or frame with bolts 7 to provide a stable support structure for the subsequent installation and fixing of the filter head 14. When fixing the mounting plate 1, make sure that the bolts 7 are tightened to provide a stable support structure.

[0036] 2. Filter head connection: Screw the filter head 14 onto the lower end of the conveying pipe 13 to initially complete the connection between the filter head 14 and the conveying pipe 13. After the initial connection between the filter head 14 and the conveying pipe 13 is completed, a simple check can be performed to ensure that the connection is firm.

[0037] 3. Clamping and reinforcement: Rotate the rotating wheel 3, which drives the forward and reverse screws 5 to rotate. Since the threads at both ends of the forward and reverse screws 5 are in opposite directions, when it rotates, the first moving block 2, which is threaded at both ends, will move towards the middle or both ends at the same time. When the first moving block 2 moves, it drives the second moving block 10 to move through the rotating rod 6. The slider 8 on one side of the second moving block 10 slides in the slide groove 9 to ensure the stability of the movement of the second moving block 10. As the second moving block 10 moves, the arc-shaped clamping ring 12 fixed on one side of the second moving block 10 will also move towards the middle at the same time, thus achieving clamping and reinforcement of the threaded joint of the filter head 14. During the clamping process, pay attention to the movement of the arc-shaped clamping ring 12 to ensure that it can be accurately clamped at the threaded joint of the filter head 14.

[0038] 4. Replace the filter head: When the filter head 14 needs to be replaced, rotate the wheel 3 in the opposite direction to loosen the clamping ring 12 from the filter head 14. Then the filter head 14 can be easily unscrewed from the delivery pipe 13 for replacement. After replacing the filter head 14, reinstall and clamp it again according to the above steps.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A quick-changeable front filter screen of a water purifying device, comprising a conveying pipe (13), characterized in that, The lower end of the conveying pipe (13) is threaded with a filter head (14), and the lower end of the filter head (14) is fixed with a nozzle (15). A mounting plate (1) is provided on one side of the filter head (14). Both the upper and lower ends of the mounting plate (1) are fixed with fixing plates (4). An expansion mechanism is connected between the two fixing plates (4). A second moving block (10) is fixed at one end of the expansion mechanism. Two arc-shaped clamping rings (12) are fixed on one side of the second moving block (10). The two arc-shaped clamping rings (12) on the same side correspond to each other and are clamped on the side wall of the filter head (14).

2. The quick-change water purifying device prefilter according to claim 1, characterized in that: The extension mechanism includes a forward and reverse screw (5) rotatably connected to one of the fixed plates (4), the upper end of the forward and reverse screw (5) being rotatably sleeved on the other fixed plate (4), a rotating wheel (3) being fixed to the upper end of the forward and reverse screw (5), and a first moving block (2) being threaded to both ends of the forward and reverse screw (5). Two rotating rods (6) are rotatably connected to one side of the first moving block (2), and one end of the two rotating rods (6) on the same side is rotatably connected to one end of a second moving block (10) on the same side.

3. The quick-change water purifying device prefilter according to claim 1, characterized in that: A slider (8) is fixed on one side of the second moving block (10), and a groove (9) is provided on one side of the mounting plate (1), and the slider (8) is engaged in the groove (9).

4. The quick-change water purifying device prefilter according to claim 1, characterized in that: A connecting block (11) is fixed to one side of the arc-shaped clamping ring (12), and one side of the connecting block (11) is fixed to one side of the second moving block (10).

5. The quick-change water purifying device prefilter according to claim 1, characterized in that: Bolts (7) are provided through all four corners of the mounting plate (1).

6. The quick-change water purifying device prefilter according to claim 1, characterized in that: The arc-shaped clamping ring (12) is covered with a rubber layer around its circumference.

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