Anti-clogging water inlet filter device for water heater

Abstract

The utility model discloses a kind of anti-clogging water heater water inlet filter devices, it is related to water heater technical field, including the water inlet pipe being connected to water heater, the pipe orifice of water inlet pipe is equipped with outer tube, the inside of outer tube is equipped with filter tube, the outer wall both ends of filter tube are threadedly equipped with end cap, the lower end of end cap is threadedly in the inside of outer tube, the bottom of filter tube is fixedly provided with two symmetrically arranged flow guide pipes, the upper end of two flow guide pipes is inserted into filter tube, the lower end of two flow guide pipes is commonly equipped with water outlet pipe, the inner wall both ends of filter tube are threadedly equipped with sealing head, two sealing heads are commonly equipped with backwashing mechanism for cleaning filter tube between them.The utility model can be used when water heater, water liquid is effectively collected by filter tube, while the impurities adhered to the outer wall of filter tube can be stably backwashed and cleaned, to avoid the outer wall of filter tube from being blocked as much as possible, improve the filtering effect and the use effect of water heater.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, specifically to an anti-clogging water inlet filter device for water heaters. Background Technology

[0002] A water heater is a device that heats water using various energy sources to meet the hot water needs of homes, businesses, and other establishments. Since water heaters are directly connected to external water pipes during use, impurities in the water can easily adhere to the pipes and the inside of the water heater over a long period, causing scale buildup. Therefore, to reduce scale formation, a filter assembly is installed in the water inlet pipe of the water heater to effectively filter impurities. For example, patent document CN214990626U discloses a filter device for the inlet of a water heater. This filter device consists of an upper filter mechanism and a lower filter mechanism. This two-layer filter structure significantly improves the filtration effect. The upper filter mechanism has a baffle that divides the flow path of tap water in the filter channel in two. The filter blades at both ends of the baffle filter the tap water twice. Without changing the space size, this extends the filtration path of the tap water, increases the number of filtrations and the filtration area, resulting in better filtration of the tap water.

[0003] However, when the above-mentioned filtration device is in use, the filter cartridge is located inside the device and cannot be directly observed. This means that the replacement of the filter cartridge and filter leaf can only rely on the user's sense of touch, which cannot effectively guarantee the stable use of the filter cartridge and reduces the effectiveness of the filtration device. Utility Model Content

[0004] In view of the problems existing in the current anti-clogging water inlet filter device for water heaters, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an anti-clogging water inlet filter device for water heaters, which solves the problem that the filter cartridge inside the filter device cannot be effectively cleaned while the water is being introduced.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A clog-resistant water inlet filter device for a water heater includes an inlet pipe connected to the water heater, an outer pipe connected to the inlet of the inlet pipe, a filter tube inside the outer pipe, end caps threaded onto both ends of the outer wall of the filter tube, the lower end of the end caps threaded into the inner wall of the outer pipe, two symmetrically arranged guide tubes fixedly passing through the bottom of the filter tube, the upper ends of the two guide tubes inserted into the filter tube, the lower ends of the two guide tubes connected to an outlet pipe, sealing heads threaded onto both ends of the inner wall of the filter tube, and a backwashing mechanism for cleaning the filter tube provided between the two sealing heads.

[0008] Preferably, the backwashing mechanism includes a water pump, which is fixedly mounted on the top of the sealing head below, and has a suction pipe and a spray pipe respectively connected to its two ends;

[0009] A reciprocating screw is rotatably inserted between the two sealing heads. A slider is fitted on the wall of the reciprocating screw through reciprocating balls. An annular tube is fixed on the outer wall of the slider. Multiple flushing pipes are connected to the wall of the annular tube in an axially uniform distribution. The water spray pipe is connected to the annular tube.

[0010] Preferably, both ends of the slider are fixedly provided with corrugated sealing tubes, and both corrugated sealing tubes are sleeved on the outside of the reciprocating screw and fixedly connected to the two sealing heads.

[0011] Preferably, the inlet pipe has a casing connected to its wall, and a drive shaft is rotatably installed inside the casing. A drive impeller is fixedly sleeved on the shaft wall of the drive shaft, and the blades of the drive impeller are located inside the inlet pipe. Synchronous pulleys are fixedly sleeved on both the shaft wall of the drive shaft and the rod wall of the reciprocating screw, and a synchronous belt is provided between the two synchronous pulleys.

[0012] Furthermore, the inner walls of the outer tube, the inner walls of the end cap, and the outer walls of the sealing head are all provided with mating threads.

[0013] Preferably, both the water suction pipe and the water spray pipe are high-pressure hoses.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model, through the provided outer tube, filter tube, end cap, sealing head and backwashing mechanism, enables water to be effectively collected through the filter tube during the use of the water heater. At the same time, it can stably backwash and clean the impurities attached to the outer wall of the filter tube, so as to avoid clogging of the outer wall of the filter tube, improve the filtration effect and the use effect of the water heater.

[0016] 2. This utility model, through its inlet pipe, cover, drive shaft, drive impeller, synchronous pulley, synchronous belt and reciprocating screw, enables the backwashing mechanism to operate stably by means of the impact of water flow when the water heater is in use, thereby reducing the supply of external energy and improving the energy efficiency of the filtration device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a sectional perspective view of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection structure of the water pump, suction pipe, spray pipe and annular pipe of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the housing and the reciprocating screw of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Inlet pipe; 2. Outer pipe; 3. Filter pipe; 4. End cap; 5. Guide pipe; 6. Outlet pipe; 7. Sealing head; 8. Water pump; 9. Suction pipe; 10. Spray pipe; 11. Reciprocating screw; 12. Slider; 13. Annular pipe; 14. Flushing pipe; 15. Corrugated sealing pipe; 16. Cover; 17. Drive shaft; 18. Drive impeller; 19. Synchronous pulley; 20. Synchronous belt. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses an anti-clogging water inlet filter device for a water heater.

[0026] This utility model provides, for example Figure 1-3 The present invention relates to an anti-clogging water inlet filter device for a water heater, comprising an inlet pipe 1 connected to the water heater, an outer pipe 2 connected to the inlet of the inlet pipe 1, a filter pipe 3 inside the outer pipe 2, end caps 4 threaded onto both ends of the outer wall of the filter pipe 3, the lower end of the end caps 4 being threaded into the outer pipe 2, two symmetrically arranged guide pipes 5 fixedly passing through the bottom of the filter pipe 3, the upper ends of the two guide pipes 5 being inserted into the filter pipe 3, the lower ends of the two guide pipes 5 being connected to an outlet pipe 6, sealing heads 7 threaded onto both ends of the inner wall of the filter pipe 3, and threads for mating connection being provided on both ends of the inner wall of the outer pipe 2, the inner wall of the end caps 4, and the outer wall of the sealing heads 7.

[0027] A backwashing mechanism for cleaning the filter tube 3 is provided between the two sealing heads 7. The backwashing mechanism includes a water pump 8, which is fixedly installed on the top of the lower sealing head 7 and connected to a water suction pipe 9 and a water spray pipe 10 at both ends. Both the water suction pipe 9 and the water spray pipe 10 are high-pressure hoses.

[0028] A reciprocating screw 11 is inserted between two sealing heads 7 and rotates together. Corrugated sealing tubes 15 are fixed at both ends of the slider 12. The two corrugated sealing tubes 15 are sleeved on the outside of the reciprocating screw 11 and fixedly connected to the two sealing heads 7. The slider 12 is sleeved on the rod wall of the reciprocating screw 11 through reciprocating balls. An annular tube 13 is fixed on the outer wall of the slider 12. Multiple flushing tubes 14 are connected to the tube wall of the annular tube 13 in an axially uniform distribution. The water spray pipe 10 is connected to the annular tube 13.

[0029] In order to reduce the need for external energy supply and ensure stable operation of the backwashing mechanism, such as Figure 1-2 and Figure 4 As shown, the wall of the water inlet pipe 1 is connected to a cover 16, and a drive shaft 17 is rotatably installed inside the cover 16. A drive impeller 18 is fixedly sleeved on the shaft wall of the drive shaft 17, and the blade end of the drive impeller 18 is located inside the water inlet pipe 1. Synchronous pulleys 19 are fixedly sleeved on both the shaft wall of the drive shaft 17 and the rod wall of the reciprocating screw 11. A synchronous belt 20 is provided between the two synchronous pulleys 19 for transmission.

[0030] Working principle: When water flows in from the inlet pipe 1, the water will enter the outer pipe 2 and flow into the filter pipe 3. At this time, impurities in the water are intercepted on the outer wall of the filter pipe 3. The filtered water flows through the inside of the filter pipe 3, through the guide pipe 5 and out of the outlet pipe 6, and enters the water heater.

[0031] When water flows through the inlet pipe 1, it impacts and drives the impeller 18 to rotate. The impeller 18 drives the synchronous wheel 19 to rotate through the transmission shaft 17. The synchronous belt 20 causes the reciprocating screw 11 to rotate. When the reciprocating screw 11 rotates, the slider 12 moves back and forth along the screw axis under the action of the reciprocating balls. The slider 12 drives the annular pipe 13 and the flushing pipe 14 to reciprocate within the filter pipe 3.

[0032] Simultaneously, water pump 8 draws water from filter tube 3 through suction pipe 9, delivers it to annular pipe 13 via spray pipe 10, and then sprays it out from flushing pipe 14 to backwash the outer wall of filter tube 3, removing attached impurities and preventing clogging. Corrugated sealing pipe 15 prevents water from entering reciprocating screw 11, ensuring normal operation of the device. Thus, during water heater operation, no additional energy is needed; the backwashing and cleaning of filter tube 3 can be achieved using the power of the water flow itself, improving filtration efficiency and the overall performance of the water heater.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A clog-resistant water inlet filter device for a water heater, comprising a water inlet pipe (1) connected to the water heater, characterized in that, The inlet pipe (1) is connected to an outer pipe (2). The outer pipe (2) is equipped with a filter pipe (3). Both ends of the outer wall of the filter pipe (3) are threaded with end caps (4). The lower end of the end caps (4) is threaded inside the outer pipe (2). Two symmetrically arranged guide pipes (5) are fixedly inserted through the bottom of the filter pipe (3). The upper ends of the two guide pipes (5) are inserted into the filter pipe (3). The lower ends of the two guide pipes (5) are connected to an outlet pipe (6). Both ends of the inner wall of the filter pipe (3) are threaded with sealing heads (7). A backwashing mechanism for cleaning the filter pipe (3) is provided between the two sealing heads (7).

2. The anti-clogging water inlet filter device for a water heater according to claim 1, characterized in that, The backwashing mechanism includes a water pump (8), which is fixedly mounted on the top of the sealing head (7) below, and is connected to a suction pipe (9) and a spray pipe (10) at both ends respectively. A reciprocating screw (11) is inserted between the two sealing heads (7) and rotates together. A slider (12) is fitted on the wall of the reciprocating screw (11) through reciprocating balls. An annular tube (13) is fixed on the outer wall of the slider (12). A plurality of flushing pipes (14) are connected to the wall of the annular tube (13) and are evenly distributed in the axial direction. The water spray pipe (10) is connected to the annular tube (13).

3. The anti-clogging water inlet filter device for a water heater according to claim 2, characterized in that, Both ends of the slider (12) are fixedly provided with corrugated sealing tubes (15), and the two corrugated sealing tubes (15) are sleeved on the outside of the reciprocating screw (11) and fixedly connected to the two sealing heads (7).

4. The anti-clogging water inlet filter device for a water heater according to claim 1, characterized in that, The inlet pipe (1) is connected to a cover (16), and a drive shaft (17) is rotatably installed inside the cover (16). A drive impeller (18) is fixedly sleeved on the shaft wall of the drive shaft (17). The blade end of the drive impeller (18) is located inside the inlet pipe (1). Synchronous pulleys (19) are fixedly sleeved on the shaft wall of the drive shaft (17) and the rod wall of the reciprocating screw (11). A synchronous belt (20) is provided between the two synchronous pulleys (19).

5. The anti-clogging water inlet filter device for a water heater according to claim 1, characterized in that, The inner walls of the outer tube (2) at both ends, the inner walls of the end cap (4), and the outer walls of the sealing head (7) are all provided with threads for mating connections.

6. The anti-clogging water inlet filter device for a water heater according to claim 2, characterized in that, Both the water suction pipe (9) and the water spray pipe (10) are high-pressure hoses.

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