Backwash filter

Abstract

The utility model relates to the field of filters, and discloses a backwashing filter which comprises a supporting block, a backwashing assembly is installed at the top end of the supporting block, a filtering assembly is installed at the right end of the supporting block, the filtering assembly comprises an outer sleeve, the right end of the outer sleeve is installed at the left end of the supporting block, and the left end of the outer sleeve is fixedly connected with the supporting block. A fixing frame is installed on the outer wall of the outer sleeve, the backflushing assembly comprises a rotating shaft, the rotating shaft penetrates through and is rotationally connected to the top end of a supporting block, a rotating handle is installed at the top end of the rotating shaft, the filtering assembly further comprises an inner sleeve, the right end of the inner sleeve is fixedly connected to the left end of the supporting block, and a separation ring is fixedly connected to the inner wall of the inner sleeve. According to the utility model, the whole device can be driven to be adjusted in four states of opening, closing, first recoil and second recoil by rotating the rotating handle, and the adjustment of the whole device in use is realized by completely depending on a mechanical structure, so that an explosion-proof component does not need to be additionally arranged, and the whole device is relatively convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a backwashing filter. Background Art

[0002] A filter is a common mechanical device that can be used to filter liquids. In environments such as mines where water resources are scarce and environmental pollution is severe, it can be used to filter water to ensure that the water source can be used normally. In order to ensure the sustainable use of the filter, existing filters are generally provided with a backwashing function. When backwashing is achieved, existing filters usually rely on motors, which usually take up a large space. When using electricity in environments such as mines, an additional explosion-proof motor needs to be installed, and the overall device is inconvenient to use.

[0003] After searching, Chinese patent announcement number: CN221014833U discloses a backwash filter, including a filter bottle, a filter element and a valve, which is switched to a filtering state or a flushing state by rotating the valve core. When the valve core is in the filtering state, the first filtering communication port of the valve is connected with the water inlet, and the second filtering communication port is connected with the hollow flow channel of the filter element, so that the water flowing in from the water inlet flows into the hollow flow channel through the filtering flow channel, and flows into the filter bottle after filtering from the inside to the outside through the filter element and flows out through the water outlet; when the valve core is in the flushing state, the first flushing communication port of the valve is connected with the water inlet, and the second flushing communication port is used to backwash the filter element, the first filtering communication port of the valve is connected with the sewage outlet, and the second filtering communication port is connected with the hollow flow channel, so that the water flowing in from the water inlet passes through the flushing flow channel to backwash the filter element, so that the impurities intercepted by the filter element are flushed in the hollow flow channel and discharged through the filtering flow channel and the sewage outlet.

[0004] When the device is in use, it also needs to rely on electric energy, so it is troublesome to use in environments such as mines, and the overall device is inconvenient to use. Therefore, a backwash filter is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a backwash filter, aiming to improve the problem in the prior art that "the existing backwash filter cannot be used directly in special environments such as mines, and the overall device is inconvenient to use".

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a backwash filter, including a support block, a backwash assembly is installed on the top of the support block, a filter assembly is installed on the right end of the support block, the filter assembly includes an outer sleeve, the right end of the outer sleeve is installed on the left end of the support block, a fixing frame is installed on the outer wall of the outer sleeve, the backwash assembly includes a rotating shaft, the rotating shaft passes through and is rotatably connected to the top of the support block, and a turning handle is installed on the top of the rotating shaft.

[0007] As a further description of the above technical solution:

[0008] The filter assembly also includes an inner sleeve, the right end of the inner sleeve is fixedly connected to the left end of the support block, the inner wall of the inner sleeve is fixedly connected to a separator ring, the inner wall of the separator ring is fixedly connected to a filter, the left end of the filter is fixedly connected to the left end of the inner wall of the inner sleeve, and a water groove is arranged between the outer sleeve and the inner sleeve.

[0009] As a further description of the above technical solution:

[0010] The right end of the support block is provided with a water inlet, the outer wall of the inner sleeve is provided with a through hole, and the right end of the filter is configured to be conical.

[0011] As a further description of the above technical solution:

[0012] The recoil assembly also includes a valve core 1, the top end of the valve core 1 is fixedly connected to the bottom end of the rotating shaft, the bottom end of the valve core 1 is fixedly connected to a connecting shaft, and the bottom end of the connecting shaft is fixedly connected to a valve core 2.

[0013] As a further description of the above technical solution:

[0014] A backwash port is arranged at the bottom of the right end of the support block close to the water inlet.

[0015] As a further description of the above technical solution:

[0016] The valve core 1 is configured as a three-way ball valve, the valve core 2 is configured as a two-way ball valve, and the inner wall groove of the valve core 2 is configured as an L-shape.

[0017] As a further description of the above technical solution:

[0018] A communication groove is arranged on the inner wall of the outer sleeve near the front end of the valve core 1, and the left end of the communication groove is communicated with the water passage groove.

[0019] As a further description of the above technical solution:

[0020] A recoil groove is arranged on the inner wall of the outer sleeve near the front end of the valve core 2, and the left end of the recoil groove is communicated with the interior of the inner sleeve.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the whole device can be adjusted in four states: open, closed, recoil one, and recoil two by turning the handle. The adjustment of the whole device during use is completely realized by the mechanical structure, so there is no need to add additional explosion-proof components, and the whole device is more convenient to use.

[0023] 2. In the utility model, the filter is flushed by guiding the water flow entering from the water inlet, so that backwashing can be achieved without adding an additional water pump, which can effectively reduce the size of the device. The overall device occupies less space when in use and can be used in a small space. The overall device has good applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0025] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the filter assembly in the utility model;

[0026] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the inner and outer sleeves of the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure section splitting of valve core 1 and valve core 2 in the utility model;

[0028] Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the support block in the utility model.

[0029] Legend:

[0030] 1. Support block; 2. Filter assembly; 21. Water inlet; 22. Outer sleeve; 23. Filter; 24. Separator ring; 25. Through hole; 26. Inner sleeve; 27. Water channel; 28. Connecting channel; 3. Fixed bracket; 4. Recoil assembly; 41. Turning handle; 42. Rotating shaft; 43. Valve core 1; 44. Recoil port; 45. Connecting shaft; 46. Valve core 2; 47. Recoil channel. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a backwash filter, including a support block 1 for connecting the overall device, a backwash component 4 for cleaning the filter 23 is installed on the top of the support block 1, a filter component 2 for filtering water is installed on the right end of the support block 1, the filter component 2 includes an outer sleeve 22 for accommodating an inner sleeve 26, the right end of the outer sleeve 22 is installed on the left end of the support block 1, and the outer wall of the outer sleeve 22 is installed with a fixing frame 3 for fixing the overall device, and a threaded groove is provided on the top of the fixing frame 3, which can be used to fix the overall device on a work surface, and the backwash component 4 includes a rotating shaft 42 for connecting a turning handle 41 and a valve core 43, the rotating shaft 42 passes through and is rotatably connected to the top of the support block 1, and a turning handle 41 for driving the rotating shaft 42 to rotate is installed on the top of the rotating shaft 42, and the valve core 43 can be driven to rotate by rotating the turning handle 41.

[0033] Reference Figure 1 - Figure 3 The filter assembly 2 also includes an inner sleeve 26 for accommodating the filter 23. The right end of the inner sleeve 26 is fixedly connected to the left end of the support block 1. The inner wall of the inner sleeve 26 is fixedly connected with a separator ring 24 for separating the filter 23. The inner wall of the separator ring 24 is fixedly connected with a filter 23 for filtering the water body. The filter 23 is divided into two parts by the separator ring 24. The shorter part at the left end is the first filter part, and the longer part at the right end is the second filter part. The left end of the filter 23 is fixedly connected to the left end of the inner wall of the inner sleeve 26. A water groove 27 for water to pass through is provided between the outer sleeve 22 and the inner sleeve 26. A water inlet 21 for water to enter the device is provided at the right end of the support block 1. A through hole 25 for water to contact the filter 23 is provided on the outer wall of the inner sleeve 26. The right end of the filter 23 is set to be conical. When the water flow contacts the conical right end of the filter 23, it will disperse along its right end and then pass through the filter 23 from the arc of the outer wall of the filter 23. In this way, the contact area between the water flow and the filter 23 can be increased.

[0034] Reference Figure 2 - Figure 4 The backwash assembly 4 also includes a valve core 43 for controlling the direction of water flow. The top of the valve core 43 is fixedly connected to the bottom of the rotating shaft 42. When the rotating shaft 42 rotates, the valve core 43 will be driven to rotate synchronously. The bottom end of the valve core 43 is fixedly connected to a connecting shaft 45 for connecting the valve core 43 and the valve core 2 46. The bottom end of the connecting shaft 45 is fixedly connected to a valve core 2 46 for controlling the connection of the backwash groove 47. The right end of the support block 1 is close to the bottom end of the water inlet 21. A backwash port 44 for discharging sewage is provided. The valve core 43 is set as a three-way ball valve, the valve core 2 46 is set as a two-way ball valve, and the inner wall groove of the valve core 2 46 is set as an L-shape.

[0035] Reference Figure 2 , Figure 3 , Figure 5 A connecting groove 28 for connecting the water inlet 21, the inner sleeve 26, and the water-passing groove 27 is provided on the inner wall of the outer sleeve 22 near the front end of the valve core 1 43. The left end of the connecting groove 28 is communicated with the water-passing groove 27. A recoil groove 47 for discharging sewage is provided on the inner wall of the outer sleeve 22 near the front end of the valve core 2 46. The left end of the recoil groove 47 is communicated with the inside of the inner sleeve 26. There are multiple groups of recoil grooves 47, and the multiple groups of recoil grooves 47 are symmetrically arranged with the center line of the support block 1 as the symmetry axis.

[0036] Working principle: When using the device, the state of the device can be adjusted by turning the handle 41. When the valve core 1 43 and the valve core 2 46 are Figure 2 When the middle state is fixed, the water flow will not be able to pass through the valve core 1 43, and the whole device is in a closed state. By rotating the turning handle 41, the valve core 1 43 and the valve core 2 46 can be driven to rotate 90° clockwise. At this time, the left and right ends of the valve core 1 43 will be connected to the interior of the inner sleeve 26 and the water inlet 21 respectively, and the left end and the front end of the valve core 1 43 will be connected to the backwash port 44 and the backwash groove 47 respectively. At this time, after the water flows into the interior of the water inlet 21, it will all pass through the water inlet 21 and enter the interior of the inner sleeve 26, and then the water will enter the interior of the filter 23 along the outer wall of the second filter part. Most of the filtered water will flow out along the opening at the left end of the device, and at the same time, part of the water will pass through the first filter part from the inside to leave the filter 23. This part of the water will take away impurities on the outer wall of the first filter part, and drive the impurities to pass through the through hole 25 into the water groove 27, and enter the interior of the backwash groove 47 along the water groove 27, and finally enter the backwash port 44 through the valve core 2 46 and be discharged. At this time, the device is in the backwash state.

[0037] Continue to turn the handle 41 90° clockwise. At this time, the front end of the valve core 43 will be closed, the left end of the valve core 43 is connected to the water inlet 21, the rear end of the valve core 43 is connected to the connecting groove 28, and the two ends of the valve core 46 are connected to the backwash groove 47 and the backwash port 44 respectively. At this time, after the water flows into the interior of the water inlet 21, it will enter the inner wall of the water groove 27 through the valve core 43 and the connecting groove 28, and the water will pass through the through hole 25 and enter the interior of the filter 23 along the outer wall of the first filter part. Most of the filtered water will leave through the opening at the left end of the device, and a part of the water will flush the second filter part from the inside to the outside. This part of the sewage will enter the valve core 46 through the backwash groove 47 and leave along the backwash port 44, so that the outer wall of the second filter part can be cleaned. At this time, the device is in the backwash second state.

[0038] Continue to turn the handle 41 90° clockwise. At this time, the valve core 2 46 will not be connected to the backwash port 44, the left end of the valve core 1 43 will be connected to the connecting groove 28, the front end of the valve core 1 43 will be connected to the water inlet 21, and the rear end of the valve core 1 43 will be connected to the interior of the inner sleeve 26. At this time, after the water flows into the interior of the water inlet 21, part of the water will directly enter the interior of the inner sleeve 26 and enter the interior of the filter 23 along the outer wall of the second filter part. The remaining water will enter the interior of the water groove 27 along the connecting groove 28, and enter the interior of the inner sleeve 26 through the through hole 25 along the interior of the water groove 27, and finally enter the interior of the filter 23 along the outer wall of the first filter part. Finally, the filtered water will all leave the interior of the filter 23 through the opening at the left end of the device. At this time, no backwashing is performed and the entire device is in an open state.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A backwash filter, comprising a support block (1), characterized in that: A recoil assembly (4) is installed at the top end of the support block (1), a filter assembly (2) is installed at the right end of the support block (1), the filter assembly (2) comprises an outer sleeve (22), the right end of the outer sleeve (22) is installed at the left end of the support block (1), a fixing frame (3) is installed on the outer wall of the outer sleeve (22), the recoil assembly (4) comprises a rotating shaft (42), the rotating shaft (42) passes through and is rotatably connected to the top end of the support block (1), and a turning handle (41) is installed at the top end of the rotating shaft (42).

2. A backwash filter according to claim 1, characterized in that: The filter assembly (2) further comprises an inner sleeve (26), the right end of the inner sleeve (26) being fixedly connected to the left end of the support block (1), the inner wall of the inner sleeve (26) being fixedly connected to a separator ring (24), the inner wall of the separator ring (24) being fixedly connected to a filter (23), the left end of the filter (23) being fixedly connected to the left end of the inner wall of the inner sleeve (26), and a water channel (27) being provided between the outer sleeve (22) and the inner sleeve (26).

3. A backwash filter according to claim 2, characterized in that: The right end of the support block (1) is provided with a water inlet (21), the outer wall of the inner sleeve (26) is provided with a through hole (25), and the right end of the filter (23) is configured to be conical.

4. A backwash filter according to claim 1, characterized in that: The recoil assembly (4) further comprises a valve core 1 (43), the top end of the valve core 1 (43) being fixedly connected to the bottom end of the rotating shaft (42), the bottom end of the valve core 1 (43) being fixedly connected to a connecting shaft (45), and the bottom end of the connecting shaft (45) being fixedly connected to a valve core 2 (46).

5. A backwash filter according to claim 4, characterized in that: A backwash port (44) is provided at the bottom of the right end of the support block (1) close to the water inlet (21).

6. A backwash filter according to claim 4, characterized in that: The valve core 1 (43) is configured as a three-way ball valve, the valve core 2 (46) is configured as a two-way ball valve, and the inner wall groove of the valve core 2 (46) is configured as an L-shape.

7. A backwash filter according to claim 4, characterized in that: A communication groove (28) is provided on the inner wall of the outer sleeve (22) near the front end of the valve core 1 (43), and the left end of the communication groove (28) is communicated with the water passage groove (27).

8. A backwash filter according to claim 4, characterized in that: A recoil groove (47) is provided on the inner wall of the outer sleeve (22) near the front end of the second valve core (46), and the left end of the recoil groove (47) is communicated with the interior of the inner sleeve (26).

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