Pressure detection mechanism of pre-filter

Abstract

The utility model provides a pressure detection mechanism of a pre-filter, and belongs to the technical field of filtering devices. The technical problems that in the prior art, a structure for arranging the position of a pressure sensor is prone to eddy current, pressure detection errors are large, and pressure numerical value reading is not visual enough are solved. The pressure detection mechanism of the pre-filter comprises a flow dividing structure which is arranged in a water outlet channel of the filter and can avoid vortex generation, and a pressure detection unit is arranged at the water outlet end of the flow dividing structure. The utility model has the advantages that the water pressure data can be read more accurately and can be read visually, the reliability of the whole detection result is higher, and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter device technical field relates to prefilter, especially, relate to a pressure detection mechanism of prefilter. BACKGROUND

[0002] Pre-filter, also known as pre-water purifier, is mainly used for filtering impurities in water, and the pre-filter is usually of T-shaped structure, and the left and right ends of the horizontal position on the top are respectively water inlet and outlet, the vertical position on the bottom is the body and the cylindrical filter screen inside, and the lowermost end is the blowdown port. The pre-filter is usually installed in a position that cannot be directly observed during use, so when the filter leaks due to aging or other reasons, it is often not discovered in time and causes greater loss. For this reason, people have carried out long-term exploration and put forward various solutions.

[0003] For example, the Chinese patent document discloses a pre-filter with a pressure sensor [application number: CN202023338844.7], which comprises a bottle body, a water inlet pipe, a motor, a valve head, a pressure sensor, an adapter and a blowdown ball valve. The left side of the water inlet pipe is threadedly connected with an external pipeline, the right side of the water inlet pipe is threadedly connected with the valve head, and a water inlet ball valve is fixedly installed between the water inlet pipe and the valve head. The motor is installed on the water inlet ball valve and can open and close the water source. The valve head is threadedly connected with the adapter, and the bottom of the valve head is threadedly connected with the bottle body. The pressure sensor is installed on the adapter and can detect the water pressure in the user's home in real time. The blowdown ball valve is connected to the lower end of the bottle body. The product uses a pressure sensor to detect whether there is water leakage at the rear end, which can reduce the risk of water leakage.

[0004] The above-mentioned scheme has the effect of reducing the risk of water leakage, but the structure of the pressure sensor position is easy to appear vortex, causing large pressure detection error. Moreover, no special visual structure is provided, and the pressure value reading is not intuitive enough. SUMMARY

[0005] The utility model aims at the above -mentioned problem, provides a kind of prefilter pressure detection mechanism of accurate detection water pressure.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a prefilter pressure detection mechanism, including the shunt structure that can avoid vortex occurrence being arranged in the water outlet channel of filter, the shunt structure water outlet end is equipped with pressure detection unit.

[0007] By setting the shunt structure in the water outlet channel, the vortex occurrence is avoided to make the overall flow state more stable, and then the violent change of water pressure is avoided, so that the water pressure data collected by the pressure detection unit arranged at the water outlet end is more accurate.

[0008] In the pre-filter pressure detection mechanism described above, the flow distribution structure includes a cross-shaped flow distribution frame arranged in the water outlet channel. The cross-shaped flow distribution frame is arranged concentrically with the water outlet channel. The concentric arrangement of the cross-shaped flow distribution frame and the water outlet channel ensures more uniform distribution of water flow when passing through, thereby improving the accuracy of pressure detection and helping to obtain more realistic and reliable pressure data.

[0009] In the pre-filter pressure detection mechanism described above, the cross-shaped flow distribution frame is arranged in the positioning ring and connected to the water outlet channel through a detachable structure. The design of the detachable structure allows the position and angle of the cross-shaped flow distribution frame to be adjusted according to actual needs.

[0010] In the pre-filter pressure detection mechanism described above, the detachable structure includes a positioning step arranged on the inner end of the water outlet channel, and the inner end of the positioning ring abuts against the positioning step of the water outlet channel, and the outer end is fixed by an elastic ring, and the outer wall of the elastic ring is embedded in the annular groove in the water outlet channel. The inner end of the positioning ring abuts against the positioning step of the water outlet channel, which ensures the stability of the flow distribution frame in the water outlet channel and prevents displacement or falling during use.

[0011] In the pre-filter pressure detection mechanism described above, the cross-shaped flow distribution frame includes four cross-shaped arrayed flow distribution plates, the inner ends of the flow distribution plates are arranged on the center column, and the outer ends are arranged on the positioning ring, a semicircular protrusion is arranged on the outer end of the center column, and the flow distribution plates are integrated with the positioning ring and the center column. The cross-shaped flow distribution frame is composed of four cross-shaped arrayed flow distribution plates, which can guide the water flow to be distributed more uniformly in the water outlet channel, avoiding the situation of excessive or insufficient local water flow, thereby improving the stability of the water flow.

[0012] In the pre-filter pressure detection mechanism described above, a pressure detection port is arranged between the water outlet channel and the annular groove, and the pressure detection port is connected to the pressure detection unit. The pressure detection port arranged between the water outlet channel and the annular groove can be connected to the pressure detection unit, thereby realizing direct detection of the pressure in the water outlet channel of the pre-filter, making the detection data more accurate.

[0013] In the pre-filter pressure detection mechanism described above, the positioning ring covers the pressure detection port and blocks at least half of the pressure detection port. The blocking of the positioning ring can reduce the influence of water flow fluctuation on the pressure detection port, making the detected pressure data more stable and improving the accuracy of detection.

[0014] In the pressure detection mechanism of the pre-filter, the pressure detection ports are multiple and distributed along the circumference of the annular groove, and each pressure detection port is provided with a pressure detection unit.

[0015] In the pressure detection mechanism of the pre-filter, the pressure detection unit comprises a pressure detection table and a pressure sensor.

[0016] In the pressure detection mechanism of the pre-filter, the pressure detection port is provided with a connecting pipe, and the connecting pipe is screwed with the pressure detection unit.

[0017] Compared with the prior art, the pressure detection mechanism of the pre-filter has the advantages that: 1. The shunt structure makes the water pressure data reading more stable and accurate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view provided by the utility model.

[0019] Figure 2 is a water outlet channel structure schematic view provided by the utility model.

[0020] Figure 3 is a cross-section internal structure schematic view provided by the utility model.

[0021] Figure 4 is a cross-section structure schematic view provided by the utility model.

[0022] In the figure, the filter 1, the water outlet channel 11, the positioning step 12, the annular groove 13, the pressure detection port 14, the connecting pipe 15, the shunt structure 2, the cross-shaped shunt frame 21, the shunt plate 211, the center column 212, the semicircular convex 213, the positioning ring 22, the elastic ring 23, the pressure detection unit 3, the pressure detection table 31, the pressure sensor 32. DETAILED DESCRIPTION

[0023] As Figures 1 to 4As shown, a pressure detection mechanism for a pre-filter includes a diversion structure 2 disposed in the outlet channel 11 of the filter 1 to prevent eddy currents from occurring, and a pressure detection unit 3 is provided at the outlet end of the diversion structure 2.

[0024] By setting a diversion structure 2 in the water outlet channel 11, the water flow is effectively dispersed and guided by the diversion structure 2 when it flows through the water outlet channel 11, ensuring that the water flow is evenly distributed in the water outlet channel 11, thereby ensuring the accuracy of the detection results of the pressure detection unit 3.

[0025] More specifically, the diversion structure 2 includes a cross-shaped diversion frame 21 installed in the water outlet channel 11.

[0026] In this embodiment, the cross-shaped diverter 21 and the water outlet channel 11 are concentrically arranged. This concentric arrangement effectively avoids the formation of eddies. Eddies can cause problems such as poor water flow and unstable pressure.

[0027] More specifically, the cross-shaped diversion frame 21 is set inside the positioning ring 22 and is connected to the water outlet channel 11 through a detachable structure.

[0028] More specifically, the detachable structure includes a positioning step 12 set on the inner end of the water outlet channel 11, the inner end of the positioning ring 22 abutting against the positioning step 12 of the water outlet channel 11, and the outer end being fixed by an elastic ring 23, the outer wall of the elastic ring 23 being embedded in the annular groove 13 in the water outlet channel 11.

[0029] like Figure 3 As shown, the cross-shaped diverter 21 includes four diverter plates 211 arranged in a cross shape. The inner end of the diverter plate 211 is set on the central column 212, and the outer end is set on the positioning ring 22. The outer end of the central column 212 is provided with a semi-circular protrusion 213. The diverter plate 211 is integrated with the positioning ring 22 and the central column 212.

[0030] In this embodiment, the cross-shaped diverter 21 is fixed by abutting the inner end of the positioning ring 22 against the positioning step 12 of the water outlet channel 11 and embedding the outer wall of the elastic ring 23 into the annular groove 13 in the water outlet channel 11. This ensures the stability of the cross-shaped diverter 21 during the diversion process and avoids the cross-shaped diverter 21 blocking the pressure detection port 14 or causing errors in the pressure detection unit 3 due to displacement.

[0031] More specifically, a pressure detection port 14 is provided between the water outlet channel 11 and the annular groove 13, and the pressure detection port 14 is connected to the pressure detection unit 3.

[0032] More specifically, the positioning ring 22 covers the pressure detection port 14 and at least blocks half of the pressure detection port 14.

[0033] More specifically, the pressure detection ports 14 are multiple and distributed circumferentially along the annular groove 13, and each pressure detection port 14 is provided with a pressure detection unit 3.

[0034] More specifically, the pressure detection unit 3 comprises a pressure detection table 31 and a pressure sensor 32.

[0035] More specifically, the pressure detection port 14 is provided with a connecting pipe 15, and the connecting pipe 15 is screwed with the pressure detection unit 3.

[0036] The working principle of the present embodiment is that the water flows into the water outlet channel 11 from the filter device 1, and is divided by the dividing plate 211 when passing through the cross-shaped dividing frame 21, so that the vortex phenomenon is avoided, and the divided water flows to the pressure detection unit 3 through the pressure detection port 14, and the pressure sensor 32 can transmit the detected water pressure data to the control center.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0038] Although the terms such as filter, water outlet channel, positioning step, annular groove, pressure detection port, connecting pipe, dividing structure, cross-shaped dividing frame, dividing plate, center column, semicircular protrusion, positioning ring, elastic ring, pressure detection unit, pressure detection table, pressure sensor, etc. are used more frequently herein, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application, and any additional limitation is contrary to the spirit of the present application.

Claims

1. A pressure detection mechanism for a pre-filter, characterized in that, It includes a diversion structure (2) installed in the water outlet channel (11) of the filter (1) to prevent eddy currents from occurring, and the water outlet end of the diversion structure (2) is provided with a pressure detection unit (3).

2. The pressure detection mechanism for the pre-filter according to claim 1, characterized in that, The diversion structure (2) includes a cross-shaped diversion frame (21) installed in the water outlet channel (11).

3. The pressure detection mechanism for the pre-filter according to claim 2, characterized in that, The cross-shaped diversion frame (21) is set inside the positioning ring (22) and connected to the water outlet channel (11) through a detachable structure.

4. The pressure detection mechanism for the pre-filter according to claim 3, characterized in that, The detachable structure includes a positioning step (12) set on the inner end of the water outlet channel (11), the inner end of the positioning ring (22) abuts against the positioning step (12) of the water outlet channel (11), and the outer end is fixed by an elastic ring (23). The outer wall of the elastic ring (23) is embedded in the annular groove (13) in the water outlet channel (11).

5. The pressure detection mechanism for the pre-filter according to claim 2, 3, or 4, characterized in that, The cross-shaped diverter (21) includes four diverter plates (211) arranged in a cross shape. The inner end of the diverter plate (211) is set on the central column (212), and the outer end is set on the positioning ring (22). The outer end of the central column (212) is provided with a semi-circular protrusion (213). The diverter plate (211), the positioning ring (22), and the central column (212) are connected as one unit.

6. The pressure detection mechanism for the pre-filter according to claim 4, characterized in that, A pressure detection port (14) is provided between the water outlet channel (11) and the annular groove (13), and the pressure detection port (14) is connected to the pressure detection unit (3).

7. The pressure detection mechanism for the pre-filter according to claim 6, characterized in that, The positioning ring (22) covers the pressure detection port (14) and at least blocks half of the pressure detection port (14).

8. The pressure detection mechanism for the pre-filter according to claim 6, characterized in that, The pressure detection ports (14) are multiple and distributed circumferentially along the annular groove (13), and each pressure detection port (14) is provided with a pressure detection unit (3).

9. The pressure detection mechanism for the pre-filter according to claim 7, characterized in that, The pressure detection unit (3) includes a pressure gauge (31) and a pressure sensor (32).

10. The pressure detection mechanism for the pre-filter according to claim 6, characterized in that, The pressure detection port (14) is provided with a connecting pipe (15), and a pressure detection unit (3) is screwed onto the connecting pipe (15).

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