A flow channel structure of a wiper sprayer housing

Abstract

A flow channel structure of a wiper sprayer housing comprises a sprayer housing, wherein a water flow distribution chamber is provided in the sprayer housing, one end of the water flow distribution chamber is communicated with a water inlet flow channel, and the side wall of the other end of the water flow distribution chamber is respectively provided with a first water outlet flow channel, a second water outlet flow channel, and a third water outlet flow channel, wherein the openings of the first water outlet flow channel, the second water outlet flow channel, and the third water outlet flow channel located on the inner wall of the water flow distribution chamber are located in the same cross section of the water flow distribution chamber, wherein the axis lines of the first water outlet flow channel and the third water outlet flow channel form an angle of 85° to 95° with the axis line of the water flow distribution chamber, the axis line of the second water outlet flow channel forms an angle of 80° to 90° with the axis line of the water flow distribution chamber, three bosses are distributed circumferentially on the inner wall of the water flow distribution chamber, so that a guide groove is formed between two adjacent bosses, the three guide grooves correspond to one water outlet flow channel respectively, and the other end port of the water flow distribution chamber is blocked with a plug.

Description

Technical Field

[0001] The invention relates to the field of water spray wipers, and in particular to a flow channel structure of a wiper water sprayer housing. Background Art

[0002] The wiper of the water-spraying wiper is connected to the wiper rod through a wiper joint, in which a wiper head is installed, and a water inlet channel and a water outlet channel are arranged on the wiper head. In the existing wiper head, there is one water inlet channel and three water outlet channels, such as Figure 7 As shown, the water inlet channel and the first water outlet channel, the second water outlet channel, and the third water outlet channel are all located in the same plane, and the water inlet channel is almost linearly connected to the third water outlet channel, resulting in inconsistent flow rates in each water outlet channel. The third water outlet channel has the largest flow rate, the second water outlet channel has the second largest flow rate, and the first water outlet channel has the smallest flow rate. As a result, the water finally sprayed out from the first water outlet channel appears scattered, and the glass is not rinsed evenly. The rinsing force is weak in places with small flow rates, and the glass is not rinsed cleanly. Summary of the invention

[0003] In order to solve the above problems in the prior art, the present invention provides a flow channel structure of a wiper spray housing, which can make the flow of three water outlet channels uniform. The technical solution of the present invention is as follows:

[0004] A flow channel structure of a wiper spray housing, comprising a spray housing, wherein a water flow distribution chamber is provided in the spray housing, one end of the water flow distribution chamber is communicated with a water inlet flow channel, and the side wall of the other end of the water flow distribution chamber is respectively provided with a first water outlet flow channel, a second water outlet flow channel, and a third water outlet flow channel, wherein the apertures of the first water outlet flow channel, the second water outlet flow channel, and the third water outlet flow channel are the same, and the openings of the first water outlet flow channel, the second water outlet flow channel, and the third water outlet flow channel on the inner wall of the water flow distribution chamber are located in the same cross section of the water flow distribution chamber, wherein the axes of the first water outlet flow channel and the third water outlet flow channel are The center line forms an angle of 85° to 95° with the axis line of the water flow distribution chamber, the axis line of the second water outlet channel forms an angle of 80° to 90° with the axis line of the water flow distribution chamber, three axially extending bosses are distributed circumferentially on the inner wall of the water flow distribution chamber, so that a guide groove is formed between two adjacent bosses, and the three guide grooves correspond to a water outlet channel respectively. Nozzles are respectively arranged at the downstream ports of the first water outlet channel and the second water outlet channel, and a connecting nozzle is arranged at the downstream end of the third water outlet channel for connecting with the extended flow channel of the auxiliary component. The other end port of the water flow distribution chamber is blocked with a plug.

[0005] The axis center line of the first water outlet channel and the axis center line of the second water outlet channel form an angle of 60° to 70°.

[0006] The axis line of the second water outlet channel and the axis line of the third water outlet channel form an angle of 95° to 105°.

[0007] The water flow distribution cavity is a stepped hole, and a conical transition section is provided at the sudden change of the diameter of the stepped hole.

[0008] The above technical solution is adopted: comprising a sprinkler housing, wherein a water flow distribution chamber is provided in the sprinkler housing, one end of the water flow distribution chamber is communicated with a water inlet channel, and the side wall of the other end of the water flow distribution chamber is respectively provided with a first water outlet channel, a second water outlet channel, and a third water outlet channel, the first water outlet channel, the second water outlet channel, and the third water outlet channel have the same aperture, and the openings of the first water outlet channel, the second water outlet channel, and the third water outlet channel on the inner wall of the water flow distribution chamber are located in the same cross section of the water flow distribution chamber, wherein the axis center line of the first water outlet channel and the third water outlet channel is parallel to the first water outlet channel and the third water outlet channel. The axis of the water flow distribution chamber forms an angle of 85° to 95°, the axis of the second water outlet channel forms an angle of 80° to 90° with the axis of the water flow distribution chamber, three bosses extending in the axial direction are distributed circumferentially on the inner wall of the water flow distribution chamber, so that a guide groove is formed between two adjacent bosses, and the three guide grooves correspond to one water outlet channel respectively. The downstream ports of the first water outlet channel and the second water outlet channel are respectively provided with nozzles, and the downstream end of the third water outlet channel is provided with a connecting nozzle for connecting with the extended flow channel of the auxiliary part, and the other end port of the water flow distribution chamber is blocked with a plug. In the flow channel structure of the wiper sprayer housing, the axis of the water flow distribution chamber is approximately perpendicular to the axis of the first water outlet channel, the second water outlet channel, and the third water outlet channel, which avoids the linear impact of the water inlet channel on one of the water outlet channels in the prior art, so that the flow of each water outlet channel is uniform, and the water sprayed out at last can wash the glass clean in all directions.

[0009] The axis of the first water outlet channel forms an angle of 60° to 70° with the axis of the second water outlet channel. The axis of the second water outlet channel forms an angle of 95° to 105° with the axis of the third water outlet channel. The angle can be adjusted according to actual conditions to ensure that the water spray range covers the entire area. Among them, the third water outlet channel is responsible for scraping the range corresponding to the upper third, the second water outlet channel is responsible for scraping the range corresponding to the middle section, and the first water outlet channel is responsible for scraping the range corresponding to the lower third.

[0010] The water flow distribution cavity is a stepped hole, and a conical transition section is provided at the diameter mutation position of the stepped hole to make the diameter mutation position smoother, more conducive to water flow, and reduce water flow fluctuation and impact.

[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the structure of the sprinkler housing;

[0013] Figure 2 for Figure 1CC section view of ;

[0014] Figure 3 for Figure 1 BB section view;

[0015] Figure 4 for Figure 1 AA section view;

[0016] Figure 5 Axonometric view of sprinkler housing with plug removed;

[0017] Figure 6 It is a schematic diagram of the assembly of the sprinkler housing and accessories;

[0018] Figure 7 It is a schematic diagram of the flow channel structure of the prior art;

[0019] Figure 8 It is a schematic diagram of the flow channel structure of the present invention. DETAILED DESCRIPTION

[0020] An embodiment of the flow channel structure of the wiper spray housing of the present invention:

[0021] See also Figure 1-Figure 8A flow channel structure of a wiper spray housing comprises a spray housing 1, wherein a water flow distribution chamber 2 is arranged in the spray housing 1, one end of the water flow distribution chamber 2 is communicated with a water inlet channel 3, and the side wall of the other end of the water flow distribution chamber 2 is respectively provided with a first water outlet channel 4, a second water outlet channel 5, and a third water outlet channel 6, wherein the apertures of the first water outlet channel 4, the second water outlet channel 5, and the third water outlet channel 6 are the same, and the openings of the first water outlet channel 4, the second water outlet channel 5, and the third water outlet channel 6 located on the inner wall of the water flow distribution chamber 2 are located in the same cross section of the water flow distribution chamber 2, wherein the axis of the first water outlet channel 4 and the third water outlet channel 6 form an angle of 85° to 95° with the axis of the water flow distribution chamber 2, and the axis of the second water outlet channel 5 forms an angle of 80° to 90° with the axis of the water flow distribution chamber 2. The axis of the first water outlet channel 4 forms an angle of 60° to 70° with the axis of the second water outlet channel 5. The axis of the second water outlet channel 5 forms an angle of 95° to 105° with the axis of the third water outlet channel 6. The angle can be adjusted according to actual conditions to ensure that the water spray range covers the entire area. Among them, the third water outlet channel 6 is responsible for scraping the range corresponding to the upper third, the second water outlet channel 5 is responsible for scraping the range corresponding to the middle section, and the first water outlet channel 4 is responsible for scraping the range corresponding to the lower third. The inner wall of the water flow distribution chamber 2 is circumferentially distributed with three bosses 7 extending in the axial direction, so that a guide groove 8 is formed between two adjacent bosses. The three guide grooves 8 correspond to a water outlet channel respectively. The downstream ports of the first water outlet channel 4 and the second water outlet channel 5 are respectively provided with nozzles 11. The downstream end of the third water outlet channel 6 is provided with a connecting nozzle 9 for connecting with the extended channel of the auxiliary component 10. The sprinkler housing 1 is installed on the scraper brush through the auxiliary component 10. The extended channel outlet of the auxiliary component 10 is connected to a nozzle. The apertures of the nozzles corresponding to the three water outlet channels are all the same. The outer periphery of the connecting nozzle 9 is provided with an annular groove for installing a sealing ring to seal the connection between the connecting nozzle 9 and the auxiliary component 10 to prevent leakage. The other end port of the water flow distribution chamber 2 is blocked with a plug 12. Since a spring is set in the water flow distribution chamber 2, one end of the spring is sleeved on the plug 12, and the other end is sleeved on a diverter cone, the water flow will form a vortex at the spring, and the vortex is easy to cause the water flow to be turbulent in the cavity, thereby causing the water sprayed out at the end to be scattered. The setting of the guide groove 8 can play a role in reducing the vortex. Since the gravity of water and water impact will cause the water flow of the second water outlet channel 5 to be larger than the water flow of the first water outlet channel 4 and the third water outlet channel 6, the width of the guide groove 8 corresponding to the second water outlet channel 5 is set to the minimum to even out the water flow of the three water outlet channels. The water flow distribution chamber 2 is a stepped hole, and a conical transition section is provided at the sudden change in diameter of the stepped hole, so that the sudden change in diameter position is smoother, more conducive to the flow of water, and reduces water flow fluctuations and impacts.

[0022] In the flow channel structure of the wiper sprayer housing, the axis of the water flow distribution chamber 2 is approximately perpendicular to the axis of the first water outlet flow channel 4, the second water outlet flow channel 5, and the third water outlet flow channel 6, which avoids the linear impact of the water inlet channel on one of the water outlet channels in the prior art, so that the flow of each water outlet flow channel is uniform, and the water sprayed can finally rinse the glass in all directions. After analyzing the fluid of the flow channel structure of the prior art and the flow channel structure of the present application, the water inlet flow rate is kept at 16 ml / s. The results show that the flow rates of the first water outlet channel, the second water outlet channel, and the third water outlet channel of the prior art are 3.25 ml / s, 4.64 ml / s, and 8.11 ml / s, respectively, and the flow rates of the first water outlet flow channel 4, the second water outlet flow channel 5, and the third water outlet flow channel 6 of the present application are 5.36 ml / s, 5.20 ml / s, and 5.44 ml / s, respectively. By comparison, it can be seen that the present application can make the water flow of each water outlet flow channel almost consistent, which can solve the problem of water dispersion.

Claims

1. A flow channel structure of a wiper spray housing, comprising a spray housing (1), characterized in that: The water sprayer housing (1) is provided with a water flow distribution chamber (2), one end of the water flow distribution chamber (2) is communicated with a water inlet channel (3), and the other end side wall of the water flow distribution chamber (2) is respectively provided with a first water outlet channel (4), a second water outlet channel (5), and a third water outlet channel (6), the first water outlet channel (4), the second water outlet channel (5), and the third water outlet channel (6) have the same aperture, and the openings of the first water outlet channel (4), the second water outlet channel (5), and the third water outlet channel (6) located on the inner wall of the water flow distribution chamber (2) are located in the same cross section of the water flow distribution chamber (2), wherein the axis of the first water outlet channel (4) and the third water outlet channel (6) are aligned with the water flow distribution chamber ( The axis of the second water outlet channel (5) and the axis of the water flow distribution chamber (2) form an angle of 85° to 95°, the axis of the second water outlet channel (5) and the axis of the water flow distribution chamber (2) form an angle of 80° to 90°, three axially extending bosses (7) are distributed around the inner wall of the water flow distribution chamber (2), so that a guide groove (8) is formed between two adjacent bosses, and the three guide grooves (8) correspond to one water outlet channel respectively, and nozzles (11) are respectively provided at the downstream ports of the first water outlet channel (4) and the second water outlet channel (5), and a connecting nozzle (9) is provided at the downstream end of the third water outlet channel (6) for connecting to the extended flow channel of the auxiliary component (10), and the other end port of the water flow distribution chamber (2) is blocked by a plug (12).

2. The flow channel structure of the wiper spray housing according to claim 1, characterized in that: The axis centerline of the first water outlet channel (4) and the axis centerline of the second water outlet channel (5) form an angle of 60° to 70°.

3. The flow channel structure of the wiper spray housing according to claim 1, characterized in that: The axis centerline of the second water outlet channel (5) and the axis centerline of the third water outlet channel (6) form an angle of 95° to 105°.

4. The flow channel structure of the wiper spray housing according to claim 1, characterized in that: The water flow distribution cavity (2) is a stepped hole, and a conical transition section is provided at the location where the diameter of the stepped hole suddenly changes.

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