Spray rod and dish washing machine

Abstract

The spraying rod is applied to the dish washing machine, the spraying rod comprises a spraying rod body and a water outlet part, and the spraying rod body is provided with a water inlet end used for being fixedly connected with a water inlet component; the water outlet part is arranged on the spray rod body, the water outlet part and the spray rod body are integrally formed, a water inlet channel is formed in the spray rod body, and an oscillating jet flow channel communicated with the water inlet channel is formed in the water outlet part. The spraying effect of the spraying rod can be improved, and therefore the cleaning effect of the dish washing machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a spray rod and a dishwasher. Background Art

[0002] When a dishwasher washes tableware, the spray bar sprays water to rinse the tableware. The spray bar in the existing dishwasher usually sprays water in a continuous water discharge manner, which forms a uniform water flow spray state and has a poor spraying effect. However, the contamination degree of the stains remaining on the tableware is different, resulting in that the existing dishwasher cannot ensure that the tableware is cleaned, and the washing effect of the existing dishwasher is poor. Utility Model Content

[0003] The main purpose of the utility model is to provide a spray rod and a dishwasher, aiming to improve the spraying effect of the spray rod, thereby improving the cleaning effect of the dishwasher.

[0004] To achieve the above object, the utility model provides a spray rod, which is applied to a dishwasher, comprising:

[0005] A spray bar body having a water inlet end for being connected and fixed to a water inlet component; and

[0006] The water outlet is arranged on the spray rod body and is integrally formed with the spray rod body. The spray rod body is provided with a water inlet channel, and the water outlet is provided with an oscillating jet channel connected with the water inlet channel.

[0007] In one embodiment, there are multiple water outlets; at least one of the water outlets is provided with the oscillating jet channel;

[0008] And / or, the plurality of water outlets are arranged in sequence and at intervals along the length direction of the spray rod body.

[0009] In one embodiment, the water outlet has a liquid inlet end, and the liquid inlet end is arranged in the water inlet channel or the liquid inlet end is flush with the inner wall of the water inlet channel;

[0010] And / or, the water outlet portion has a liquid outlet end, and the liquid outlet end is protruding from the outer surface of the spray rod body.

[0011] In one embodiment, the spray rod body includes a joint pipe section, which is located at one end of the spray rod body and forms the water inlet end, and the joint pipe section is fixed to the water inlet component by plugging or screwing.

[0012] In one embodiment, the oscillating jet channel includes a liquid inlet, a liquid outlet, and an oscillation chamber and a reflux channel connected to the liquid inlet and the liquid outlet. The oscillation chamber is flat, and the width of the oscillation chamber is gradually expanded from the liquid inlet toward the liquid outlet, so that the water flow is ejected from the liquid outlet in a periodic oscillating manner.

[0013] In one embodiment, the width of the liquid inlet at the outlet is W1, and the width of the liquid outlet at the inlet is W2; W2 is greater than W1;

[0014] And / or, the width of the reflux channel is W3, and the ratio of W3 to W2 is not less than 0.3 and not greater than 1.5.

[0015] In one embodiment, the width of the liquid inlet hole is gradually reduced from the liquid inlet hole toward the liquid outlet hole;

[0016] And / or, the width of the liquid outlet hole is gradually expanded from the liquid inlet hole toward the liquid outlet hole;

[0017] And / or, the oscillation chamber is located in the middle of the oscillation jet channel, the reflux channels are provided on opposite sides of the oscillation chamber, the inlet of the reflux channel is located between the outlet of the liquid inlet hole and the inlet of the oscillation chamber, and the outlet of the reflux channel is located between the outlet of the oscillation chamber and the inlet of the liquid outlet hole.

[0018] In one embodiment, the spray rod body includes a first pipe section and a second pipe section, the first pipe section is connected to the second pipe section and is arranged in a bent shape to form an escape space, and the escape space is located on the side of the water outlet.

[0019] In one embodiment, the water outlet is perpendicular to the spray rod body, and the height of the water outlet is not less than 30 mm.

[0020] The utility model also provides a dishwasher, comprising a lower bowl basket, an upper bowl basket and the spray rod as described above, wherein the spray rod is installed at the bottom of the upper bowl basket, and the oscillating jet channel is arranged toward the accommodating space of the upper bowl basket.

[0021] The spray rod of the utility model comprises a spray rod body and a water outlet, the spray rod body has a water inlet end for connecting and fixing with a water inlet component, that is, the water inlet end of the spray rod body is used to connect with the water inlet component, so as to facilitate fixing the spray rod and the water inlet component together, the spray rod body is fixed relative to the water inlet component, and the spray rod is equivalent to a regional washing spray rod; the water outlet is arranged on the spray rod body and is integrally formed with the spray rod body, a water inlet channel is arranged in the spray rod body, and an oscillating jet channel connected with the water inlet channel is arranged in the water outlet, so that the spray rod body and the water outlet are integrated, and the structure of the spray rod is simple. , it is easy to form, and there is no need to use seals to seal the connection between the spray rod body and the water outlet, which is beneficial to improving the reliability of the spray rod and reducing the production cost of the spray rod; moreover, the water in the water inlet channel can stably flow into the oscillating jet channel, and the water flow will oscillate in the oscillating jet channel, thereby forming a pulse oscillating water flow, so that the spray rod can achieve pulse oscillation spraying, and the pulse oscillation spraying effect of the spray rod is good, the water flow of the pulse oscillation spraying is strong, and the jet is more concentrated. The pulse change of the water flow pressure ejected by the spray rod will have an erosion effect on the stains on the tableware, thereby improving the cleaning effect. The spray rod of the present application adopts a pulse oscillation spraying method. Compared with the continuous spraying adopted by the spray rod in the prior art, under the same spraying pressure, the pulse oscillation spraying can use a smaller power water pump to drive the water flow, and can also reduce the water consumption, thereby reducing the energy consumption of the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A schematic structural diagram of an embodiment of a spray bar provided by the utility model;

[0024] Figure 2 for Figure 1 A cross-sectional view of the structure in FIG.

[0025] Figure 3 for Figure 2 Schematic diagram of some structures in ;

[0026] Figure 4 for Figure 2 Schematic diagram of some structures in .

[0027] Description of Figure Numbers:

[0028] 10. Spray boom;

[0029] 100, spray rod body; 110, water inlet end; 120, water inlet channel; 130, avoidance space; 140, first pipe section; 150, second pipe section; 160, joint pipe section;

[0030] 200, water outlet; 210, oscillating jet channel; 211, liquid inlet; 212, liquid outlet; 213, oscillation chamber; 214, reflux channel.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] 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 of 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.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] The utility model provides a spray bar 10.

[0036] See also Figures 1 to 4In one embodiment of the utility model, a spray rod 10 is applied to a dishwasher, and the spray rod 10 includes a spray rod body 100 and a water outlet 200, the spray rod body 100 has a water inlet end 110 for connecting and fixing with a water inlet component; the water outlet 200 is arranged on the spray rod body 100 and is integrally formed with the spray rod body 100, the spray rod body 100 is provided with a water inlet channel 120, and the water outlet 200 is provided with an oscillating jet channel 210 connected with the water inlet channel 120.

[0037] It is understandable that the spray bar 10 can be applied to a cleaning device, which can be a dishwasher, a shower device, etc., which is not specifically limited here. The spray bar body 100 can have a variety of shapes, for example, the spray bar body 100 is arranged in a long strip shape, or a flat plate shape, or other shapes. The water inlet channel 120 in the spray bar body 100 can be a linear water flow channel, or a curved water flow channel, or a water flow channel that is a mixture of linear and curved types, which is not specifically limited here.

[0038] Further, the water inlet end 110 of the spray rod body 100 can be located at one end of the spray rod body 100, or at the middle of the spray rod body 100, or at other positions of the spray rod body 100. It is only necessary that the water inlet end 110 of the spray rod body 100 can be connected and fixed with the water inlet component. The connection and fixation here refers to the connection between the spray rod body 100 and the water inlet component, and the spray rod body 100 is fixed relative to the water inlet component, that is, the spray rod 10 is equivalent to a regional washing spray rod, and the spray rod 10 is a non-rotating spray rod. As for the connection method between the spray rod body 100 and the water inlet component, it can be fixed by plugging through a plug-in structure, or screwed through a threaded structure, or connected and fixed by other methods. By connecting and fixing the spray rod body 100 and the water inlet component, it is beneficial to improve the stability of the spray rod connection. In addition, the water inlet component can be a water supply device, such as a water pump, and the spray rod body 100 is directly connected to the water pump; or, the spray rod body 100 is connected to the water pump through a water pipe; or, the spray rod body 100 is connected to the water pump through a distributor, which is not limited here.

[0039] Furthermore, the water outlet 200 may be partially located inside the spray boom body 100, or the water outlet 200 may be entirely located outside the spray boom body 100. That is to say, the position of the water outlet 200 on the spray boom body 100 is not limited, and the water outlet 200 only needs to be integrally formed with the spray boom body 100. The spray boom body 100 and the water outlet 200 are an integrated structure, which is beneficial to simplifying the structure of the spray boom 10, making the spray boom 10 easy to form and improving the stability of the spray boom 10 in spraying water.

[0040] Furthermore, an oscillating jet channel 210 is provided in the water outlet 200, and the water flows through the oscillating jet channel 210 and is ejected out of the spray rod. A water inlet channel 120 is provided in the spray rod body 100, and the water inlet channel 120 is connected with the oscillating jet channel 210. The water flows into the spray rod body 100 from the water inlet end 110, and flows into the oscillating jet channel 210 after passing through the water inlet channel 120. The water will oscillate in the oscillating jet channel 210, thereby forming a pulse oscillating water flow, and the pulse oscillating water flow is ejected outward to form a pulse oscillating spray. The water flow of the pulse oscillating spray has a strong ejection force and a more concentrated jet, thereby improving the cleaning effect of the spray rod 10. As for the specific structure of the oscillating jet channel 210, it is not limited here, and it only needs to be able to form a pulse oscillating water flow. The oscillating jet channel 210 will be described in detail later, and will not be described one by one here. It can be seen that the overall structure of the spray bar 10 of the present application is different from the structure of the spray arm in the prior art. The overall structure of the spray bar 10 of the present application can be arranged in a long strip shape or in a tubular shape, which is not limited here. In one embodiment, the spray bar 10 is applied to a dishwasher, and the spray bar 10 is used to partially clean tableware, for example, the spray bar 10 is used to partially clean tableware such as deep cups.

[0041] The spray bar 10 of the utility model comprises a spray bar body 100 and a water outlet 200. The spray bar body 100 has a water inlet end 110 for connecting and fixing with a water inlet component. That is to say, the water inlet end 110 of the spray bar body 100 is used to connect with the water inlet component, so as to facilitate fixing the spray bar 10 and the water inlet component together. The spray bar body 100 is fixed relative to the water inlet component, and the spray bar 10 is equivalent to a regional washing spray bar; the water outlet 200 is arranged on the spray bar body 100 and is integrally formed with the spray bar body 100. The spray bar body 100 is provided with a water inlet channel 120, and the water outlet 200 is provided with an oscillating jet channel 210 connected with the water inlet channel 120. In this way, the spray bar body 100 and the outlet are connected. The water portion 200 is a whole, the spray bar 10 has a simple structure and is easy to form. There is no need to use a seal to seal the connection between the spray bar body 100 and the water outlet 200, which is beneficial to improving the reliability of the spray bar 10 and reducing the production cost of the spray bar 10; moreover, the water in the water inlet channel 120 can stably flow into the oscillating jet channel 210, and the water flow will oscillate in the oscillating jet channel 210, thereby forming a pulse oscillating water flow, so that the spray bar can achieve pulse oscillation spraying, and the pulse oscillation spraying effect of the spray bar is good, the water flow of the pulse oscillation spraying has a large injection force, and the jet is more concentrated. The pulse change of the water flow pressure ejected by the spray bar will have an erosion effect on the stains on the tableware, thereby improving the cleaning effect. The spray bar 10 of the present application adopts a pulse oscillation spraying method. Compared with the continuous spraying of the spray bar in the prior art, under the same spraying pressure, the pulse oscillation spraying can use a smaller power water pump to drive the water flow, and can also reduce the water consumption, thereby reducing the energy consumption of the cleaning process.

[0042] In one embodiment, there are a plurality of water outlets 200 ; at least one of the water outlets 200 is provided with the oscillating jet channel 210 ; and / or the plurality of water outlets 200 are arranged in sequence and spaced apart along the length direction of the spray rod body 100 .

[0043] It can be understood that the water outlet 200 is used to spray water outward, and there are multiple water outlets 200, and the multiple water outlets 200 can spray water outward, that is, the water flowing into the water inlet channel 120 of the spray rod body 100 can flow through the multiple water outlets 200 to spray water outward. At least one water outlet 200 is provided with the oscillating jet channel 210, that is, among the multiple water outlets 200, each of the water outlets 200 is provided with the oscillating jet channel 210; or, a part of the water outlets 200 is provided with the oscillating jet channel 210, and another part of the water outlets 200 is not provided with the oscillating jet channel 210, and another part of the water outlets 200 can only be provided with a water outlet channel, and the specific structure of the water outlet channel is not limited, and it only needs to be able to supply water to flow outward.

[0044] Furthermore, the multiple water outlets 200 are arranged in sequence along the length direction of the spray rod body 100, so that the water flow sprayed from the multiple water outlets 200 has a larger coverage area, that is, the spray coverage area of ​​the spray rod is increased, which is beneficial to improving the cleaning effect of the spray rod.

[0045] In one embodiment, there are multiple water outlets 200, each of which is provided with the oscillating jet channel 210, and the multiple water outlets 200 are sequentially arranged at intervals along the length direction of the spray bar body 100. Such an arrangement is conducive to increasing the spray coverage area of ​​the spray bar, and the multiple oscillating jet channels 210 increase the water jet force of the spray bar, thereby improving the cleaning effect of the spray bar.

[0046] In one embodiment, the spacing between the two water outlets 200 is not less than 30 mm and not more than 100 mm. It is understandable that the spacing between the two water outlets 200 can be the spacing between two adjacent water outlets 200, that is, the spacing between two adjacent water outlets 200 can be 30 mm, or 40 mm, or 50 mm, or 60 mm, or 70 mm, or 80 mm, or 90 mm, or 100 mm, etc., and the specific values ​​are not limited here. When the spacing between two adjacent water outlets 200 is too small, the spray coverage area of ​​the multiple water outlets 200 is small; when the spacing between two adjacent water outlets 200 is too large, there may be an area between the two water outlets 200 that is not covered by the spray water, that is, a spray blank area. When the tableware to be cleaned is placed in the spray blank area, the spray rod cannot clean the tableware in the spray blank area, and the cleaning effect of the spray rod is poor. It can be seen that, in this solution, by limiting the distance between two adjacent water outlets 200 , the multiple water outlets 200 can have a larger spray coverage area while also ensuring that the spray bar has a better cleaning effect.

[0047] In one embodiment, the water outlet portion 200 has a liquid inlet end, which is arranged in the water inlet channel 120 or the liquid inlet end is flush with the inner wall of the water inlet channel 120; and / or, the water outlet portion 200 has a liquid outlet end, which is protruding from the outer surface of the spray rod body 100.

[0048] It can be understood that the water outlet 200 has a liquid inlet end and a liquid outlet end, and the liquid inlet end can be arranged in the water inlet channel 120, that is, the liquid inlet end of the water outlet 200 is arranged in the spray rod body 100, so that the liquid inlet end of the water outlet 200 can block part of the water flow to slow down the speed of part of the water flow flowing along the extension direction of the water inlet channel 120, thereby facilitating the water flow to flow from the liquid inlet end into the water outlet 200. Of course, the liquid inlet end of the water outlet 200 can also be flush with the inner wall of the water inlet channel 120, so that the water flow can easily flow from the water inlet channel 120 into the water outlet 200, the internal structure of the spray rod is simple, and the spray rod is easy to form.

[0049] Furthermore, the liquid outlet end of the water outlet portion 200 is arranged to protrude from the outer surface of the spray rod body 100. The protruding height of the water outlet portion 200 relative to the spray rod body 100 makes it easy to set an oscillating jet channel 210 in the water outlet portion 200, that is, the oscillating jet channel 210 is easy to be processed and formed in the water outlet portion 200, which is conducive to simplifying the molding process of the spray rod.

[0050] See also Figure 1 In one embodiment, one end of the spray rod body 100 is configured as the water inlet end 110; and / or the water inlet end 110 is fixed to the water inlet component by plugging or screwing.

[0051] It can be understood that one end of the spray rod body 100 is set as the water inlet end 110, that is, the spray rod body 100 is filled with water from the end, and the water in the external water inlet component flows into the water inlet channel 120 from one end of the spray rod body 100. The spray rod body 100 is not filled with water in the middle, so it is convenient to connect and fix the water inlet end 110 with the water inlet component.

[0052] Furthermore, the water inlet end 110 and the water inlet component can be plugged and fixed using a plug-in structure, or screwed and fixed using a threaded structure. There is no specific limitation here. The plug-in and screw-fixing or screw-fixing method of the water inlet end 110 and the water inlet component is simple and easy to assemble, while also ensuring the stability of the connection between the spray rod and the water inlet component.

[0053] In one embodiment, the spray rod body 100 includes a joint pipe section 160, which is located at one end of the spray rod body 100 and forms the water inlet end 110. The joint pipe section 160 is plugged or screwed to the water inlet component. It can be understood that the spray rod body 100 is fed with water from the joint pipe section 160 located at the end, and the water in the external water inlet component flows into the water inlet channel 120 from one end of the spray rod body 100. The spray rod body 100 is not fed with water in the middle, so it is convenient to connect and fix the joint pipe section 160 with the water inlet component; and the method of plugging and fixing the joint pipe section 160 with the water inlet component or screwing and fixing it is simple and easy to assemble, while also ensuring the stability of the connection between the spray rod and the water inlet component.

[0054] See also Figures 2 to 4 In one embodiment, the oscillating jet channel 210 includes a liquid inlet hole 211, a liquid outlet hole 212, an oscillation cavity 213 and a reflux channel 214 connected to the liquid inlet hole 211 and the liquid outlet hole 212. The oscillation cavity 213 is flat, and the width of the oscillation cavity 213 is gradually expanded from the liquid inlet hole 211 toward the liquid outlet hole 212, so that the water flow is ejected from the liquid outlet hole 212 in a periodic oscillating manner.

[0055] It can be understood that according to the Coanda effect, the fluid deviates from the original flow direction and changes to a tendency to flow along the protruding surface of the object. Therefore, when the liquid flows into the oscillation cavity 213, it has a tendency to deviate to the cavity wall on one side of the oscillation cavity 213. When the liquid flows into the oscillation cavity 213 from the liquid inlet hole 211, the liquid deviates to the cavity wall on one side of the oscillation cavity 213. When the liquid flows to the outlet of the oscillation cavity 213, a part of the liquid flows back from the reflux channel 214 to the entrance of the oscillation cavity 213. This part of the liquid interacts with the liquid at the entrance of the oscillation cavity 213, so that the liquid deflects toward the other side of the cavity wall of the oscillation cavity 213 in the oscillation cavity 213, and so on and so forth, thereby causing periodic pressure oscillation in the oscillation cavity 213. The width of the oscillation cavity 213 is gradually expanded from the liquid inlet hole 211 toward the liquid outlet hole 212, which is conducive to increasing the space of the oscillation cavity 213, so that there is more space in the oscillation cavity 213 to accommodate the periodic oscillation water flow. When the liquid is ejected from the liquid outlet 212, a self-excited oscillating jet is formed, and the water flow swings periodically, so that the spray rod forms a pulse oscillating water flow.

[0056] Furthermore, the oscillation cavity 213 is arranged in a flat shape, that is, the thickness of the oscillation cavity 213 is less than the length of the oscillation cavity 213. In this embodiment, the height direction of the water outlet 200 is the length direction of the oscillation cavity 213 (eg Figure 1 The thickness direction of the water outlet 200 is the thickness direction of the oscillation cavity 213 (as shown in the z direction). Figure 1 By setting the oscillation cavity 213 to be flat, the flat oscillation cavity 213 cooperates with the reflux channel 214 to enable the liquid to self-oscillate. If the oscillation cavity 213 is a cylindrical cavity or a conical cavity, the liquid cannot self-oscillate.

[0057] See also Figure 4 In one embodiment, the width of the liquid inlet hole 211 at the outlet is W1, and the width of the liquid outlet hole 212 at the inlet is W2; W2 is greater than W1; and / or the width of the reflux channel 214 is W3, and the ratio of W3 to W2 is not less than 0.3 and not greater than 1.5.

[0058] It is understandable that the width W2 at the inlet of the liquid outlet 212 is greater than the width W1 at the outlet of the liquid inlet 211, that is, W2>W1. Such a setting is conducive to increasing the injection flow rate of the water flow, thereby facilitating the water flow to be ejected outward from the liquid outlet 212.

[0059] Furthermore, the width of the reflux channel 214 is W3, the width of the entrance of the liquid outlet 212 is W2, 0.3≤W3 / W2≤1.5, that is, the ratio of W3 / W2 can be 0.3, or 0.5, or 0.8, or 1.0, or 1.2, or 1.5, which is not specifically limited here. The oscillation frequency of the water flow in the oscillating jet channel 210 is determined by the width W3 of the reflux channel 214. If the ratio of W3 / W2 is too small, the oscillation frequency of the water flow is too small, and it is not easy to form a periodic oscillation pressure, so that the water flow has a poor stripping effect on the stains on the tableware, affecting the cleaning effect; if the ratio of W3 / W2 is too large, the oscillation frequency of the water flow is too large, which easily causes the water outlet 200 to vibrate and generate noise.

[0060] See also Figure 3 and Figure 4 In one embodiment, the width of the liquid inlet hole 211 is gradually reduced from the liquid inlet hole 211 toward the liquid outlet hole 212. Such a configuration is conducive to increasing the flow rate of the water entering the oscillation chamber 213, that is, increasing the pressure of the liquid out of the liquid inlet hole 211 and increasing the speed of the sprayed water.

[0061] In one embodiment, the width of the liquid outlet hole 212 is gradually expanded from the liquid inlet hole 211 toward the liquid outlet hole 212. It can be understood that the jet oscillates periodically in the oscillation cavity 213, and the gradually expanding liquid outlet hole 212 can provide space for the jet to oscillate, preventing the jet from hitting the hole wall when oscillating, thereby ensuring that the liquid outlet hole 212 can eject the oscillating water flow.

[0062] In one embodiment, the oscillation chamber 213 is located in the middle of the oscillation jet channel 210, and the reflux channel 214 is provided on opposite sides of the oscillation chamber 213, the inlet of the reflux channel 214 is located between the outlet of the liquid inlet hole 211 and the inlet of the oscillation chamber 213, and the outlet of the reflux channel 214 is located between the outlet of the oscillation chamber 213 and the inlet of the liquid outlet hole 212. It can be understood that when the liquid flows into the oscillation chamber 213 from the liquid inlet 211, the liquid flows toward the side wall of the oscillation chamber 213. When the liquid flows to the outlet of the oscillation chamber 213, a part of the liquid flows back from one of the reflux channels 214 to the inlet of the oscillation chamber 213. This part of the liquid interacts with the liquid at the inlet of the oscillation chamber 213, causing the liquid to deflect toward the other side wall of the oscillation chamber 213 in the oscillation chamber 213. When the liquid flows to the outlet of the oscillation chamber 213, another part of the liquid flows back from another reflux channel 214 to the inlet of the oscillation chamber 213, interacts with the liquid at the inlet of the oscillation chamber 213, causing the liquid to deflect toward the side wall of the oscillation chamber 213 again. This cycle is repeated, thereby causing periodic pressure oscillations in the oscillation chamber 213 to form a self-excited oscillating jet.

[0063] See also Figure 1 In one embodiment, the spray bar is formed with an avoidance space 130, and the avoidance space 130 is located on the side of the water outlet 200. It can be understood that when the spray bar is installed in a cleaning device, such as a dishwasher, the spray bar may interfere with parts such as a washing basket in the dishwasher due to the limited internal space of the dishwasher. In this solution, the avoidance space 130 is formed on the spray bar, so that parts such as the washing basket can be avoided, and the avoidance space 130 is located on the side of the water outlet 200, so that the water outlet 200 does not interfere with the parts in the avoidance space 130, and the water outlet 200 can spray water outward stably, which is conducive to improving the utilization rate of the spray bar and improving the compactness of the internal structure of the dishwasher.

[0064] See also Figure 1 In one embodiment, the spray rod body 100 includes a first pipe section 140 and a second pipe section 150, and the first pipe section 140 and the second pipe section 150 are connected and arranged in a bent shape to form the avoidance space 130. It can be understood that the first pipe section 140 and the second pipe section 150 are integrally formed to ensure that the spray rod body 100 has a high structural strength; and the avoidance space 130 of the spray rod body 100 is formed in a simple manner and can be formed without additional processing of the pipe sections, so that the forming process of the spray rod is simple and easy to manufacture. In addition, the angle of the bend of the first pipe section 140 and the second pipe section 150 can be an acute angle, a right angle, or an obtuse angle, such as 80°, 90°, 120°, etc., which is not specifically limited here.

[0065] In one embodiment, the spray rod body 100 includes a first pipe section 140 and a second pipe section 150, the first pipe section 140 and the second pipe section 150 are connected and arranged in a bent shape to form an escape space 130, and the escape space 130 is located on the side of the water outlet 200. It can be understood that the first pipe section 140 and the second pipe section 150 are integrally formed to ensure that the spray rod body 100 has a high structural strength, and the escape space 130 of the spray rod body 100 is formed in a simple manner and can be formed without additional processing of the pipe section, so that the forming process of the spray rod is simple and easy to manufacture. In addition, the escape space 130 is located on the side of the water outlet 200, so that the water outlet 200 will not interfere with the parts in the escape space 130, and the water outlet 200 can spray water outward stably, which is conducive to improving the utilization rate of the spray rod and improving the compactness of the internal structure of the dishwasher.

[0066] In one embodiment, the water outlet 200 is perpendicular to the spray rod body 100, and the height of the water outlet 200 is not less than 30 mm. This arrangement allows the water outlet 200 to have a longer length, and the water outlet 200 can be extended into tableware to achieve regional cleaning, for example, the water outlet 200 is extended into a deep cup for regional cleaning, which is beneficial to improving the cleaning effect. The height of the water outlet 200 can be 30 mm, or 40 mm, or 50 mm, or 60 mm, or 70 mm, or 80 mm, etc. The specific values ​​are not limited here. In this embodiment, the height of the water outlet 200 is not less than 30 mm and not more than 100 mm.

[0067] In one embodiment, the length of the first pipe section 140 is greater than the length of the second pipe section 150, and the plurality of water outlets 200 are arranged in sequence on the first pipe section 140. It can be understood that the second pipe section 150 is used to cooperate with the first pipe section 140 to form the avoidance space 130. When the second pipe section 150 avoids the parts in the dishwasher, it is not necessary to consider setting the water outlet 200. The plurality of water outlets 200 are arranged on the first pipe section 140. After the water in the water inlet channel 120 is ejected through the plurality of water outlets 200, a plurality of periodically oscillating water columns will be formed. The plurality of water columns are arranged toward the washing basket, so as to facilitate the washing of the dishes in the washing basket.

[0068] In one embodiment, the first pipe section 140 is a square tube or a round tube. It is understandable that the first pipe section 140 is a square tube, that is, the radial cross section of the first pipe section 140 is a polygon; the first pipe section 140 is a round tube, that is, the radial cross section of the first pipe section 140 is a circle. The first pipe section 140 in this solution is a square tube, which is conducive to reducing the mold line of the first pipe section 140 and improving the quality of the first pipe section 140.

[0069] In one embodiment, the second pipe section 150 is a square tube or a round tube. It is understandable that the second pipe section 150 is a square tube, that is, the radial cross section of the second pipe section 150 is a polygon; the second pipe section 150 is a round tube, that is, the radial cross section of the second pipe section 150 is a circle. The second pipe section 150 in this solution is a square tube, which is conducive to reducing the mold line of the second pipe section 150 and improving the quality of the second pipe section 150.

[0070] In one embodiment, the boom body 100 further includes a joint pipe section 160, and the joint pipe section 160, the second pipe section 150 and the first pipe section 140 are connected in sequence; the water inlet end 110 is provided at one end of the joint pipe section 160 away from the second pipe section 150. By providing the joint pipe section 160, it is convenient to connect and fix the boom body 100 with the water inlet component, and the end of the joint pipe section 160 away from the second pipe section 150 is provided as the water inlet end 110, that is, the boom body 100 is water-inletted from the end, and the water in the external water inlet component flows into the water inlet channel 120 from one end of the boom body 100, and the boom body 100 is water-inletted from the non-central part, so it is convenient to connect and fix the water inlet end 110 with the water inlet component.

[0071] In one embodiment, the connection between the joint pipe section 160 and the second pipe section 150 is arranged in a bent shape. This arrangement prevents the second pipe section 150 from interfering with the water inlet component, and facilitates the connection and fixation of the joint pipe section 160 with the water inlet component. The extension direction of the joint pipe section 160 can be the same as the extension direction of the first pipe section 140 to improve the consistency of the spray boom.

[0072] In one embodiment, the length of the joint pipe section 160 is less than the length of the second pipe section 150. It is understandable that the joint pipe section 160 is used to connect and fix with the water inlet component, and the joint pipe section 160 does not need to be set too long, but only needs to be convenient for connection and fixation with the water inlet component.

[0073] In one embodiment, the joint pipe section 160 is a round tube or a square tube. It can be understood that the joint pipe section 160 is a square tube, that is, the radial cross section of the joint pipe section 160 is a polygon; the joint pipe section 160 is a round tube, that is, the radial cross section of the joint pipe section 160 is a circle. The joint pipe section 160 in this solution is a round tube, which is convenient for sealing and fixing with the water inlet component, thereby improving the applicability of the spray rod 10.

[0074] The utility model further provides a dishwasher, which includes the spray rod 10 as described above. The specific structure of the spray rod 10 refers to the above embodiments. Since the dishwasher adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0075] The utility model also proposes a dishwasher, which includes a lower basket, an upper basket, and the spray rod 10 as described above, wherein the spray rod 10 is installed at the bottom of the upper basket, and the oscillating jet channel 210 is arranged toward the accommodation space of the upper basket. It can be understood that the upper basket has an accommodation space for placing tableware, and the oscillating jet channel 210 in the water outlet 200 of the spray rod 10 is arranged toward the accommodation space of the upper basket, so that the water outlet 200 can extend into the inside of the tableware placed on the upper basket for cleaning, for example, the water outlet 200 extends into a deep cup for regional cleaning, and the water flow of the oscillating jet channel 210 has a strong jet force and a more concentrated jet, which is conducive to improving the cleaning effect.

[0076] In one embodiment, the dishwasher includes a water inlet component and a bowl basket, the water inlet component is connected and fixed to the water inlet end 110 of the spray rod, and the oscillating jet channel 210 on the spray rod 10 is arranged toward the bowl basket. By arranging the oscillating jet channel 210 on the spray rod, the water flow will oscillate in the oscillating jet channel 210, thereby forming a pulse oscillating water flow, and the pulse oscillating water flow is ejected outward to form a pulse oscillating spray. The water flow of the pulse oscillating spray has a strong ejection force and a more concentrated jet, thereby improving the cleaning effect of the spray rod.

[0077] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A spray bar, used in a dishwasher, characterized in that: include: The spray rod body has a water inlet end for being connected and fixed to the water inlet component; The water outlet is arranged on the spray rod body and is integrally formed with the spray rod body. The spray rod body is provided with a water inlet channel, and the water outlet is provided with an oscillating jet channel connected with the water inlet channel. The oscillating jet channel includes a liquid inlet hole, a liquid outlet hole, and an oscillation cavity and a reflux channel connected with the liquid inlet hole and the liquid outlet hole. The width of the oscillation cavity is gradually expanded from the liquid inlet hole toward the liquid outlet hole, so that the water flow is ejected from the liquid outlet hole in a periodic swinging manner.

2. The spray bar according to claim 1, characterized in that There are multiple water outlets; at least one of the water outlets is provided with the oscillating jet channel; And / or, the plurality of water outlets are arranged in sequence and at intervals along the length direction of the spray rod body.

3. The spray bar according to claim 1, characterized in that The water outlet portion has a liquid inlet end, and the liquid inlet end is arranged in the water inlet channel or the liquid inlet end is flush with the inner wall of the water inlet channel; And / or, the water outlet portion has a liquid outlet end, and the liquid outlet end is protruding from the outer surface of the spray rod body.

4. The spray bar according to claim 1, characterized in that The spray rod body comprises a joint pipe section, which is located at one end of the spray rod body and forms the water inlet end. The joint pipe section is fixed to the water inlet component by plugging or screwing.

5. The spray bar according to claim 1, characterized in that The oscillation cavity is arranged in a flat shape.

6. The spray bar according to claim 5, characterized in that The width of the liquid inlet at the outlet is W1, and the width of the liquid outlet at the inlet is W2; W2 is larger than W1; And / or, the width of the reflux channel is W3, and the ratio of W3 to W2 is not less than 0.3 and not greater than 1.

5.

7. The spray bar according to claim 5, characterized in that The width of the liquid inlet hole is gradually reduced from the liquid inlet hole toward the liquid outlet hole; And / or, the width of the liquid outlet hole is gradually expanded from the liquid inlet hole toward the liquid outlet hole; And / or, the oscillation cavity is located in the middle of the oscillation jet channel, the reflux channels are provided on opposite sides of the oscillation cavity, the inlet of the reflux channel is located between the outlet of the liquid inlet hole and the inlet of the oscillation cavity, and the outlet of the reflux channel is located between the outlet of the oscillation cavity and the inlet of the liquid outlet hole.

8. The spray bar according to claim 1, characterized in that The spray rod body includes a first pipe section and a second pipe section, wherein the first pipe section is connected to the second pipe section and is arranged in a bent shape to form an escape space, and the escape space is located at a side of the water outlet.

9. The spray bar according to any one of claims 1 to 8, characterized in that The water outlet is perpendicular to the spray rod body, and the height of the water outlet is not less than 30 mm.

10. A dishwasher, characterized in that: It comprises a lower bowl basket, an upper bowl basket and a spray rod as claimed in any one of claims 1 to 9, wherein the spray rod is installed at the bottom of the upper bowl basket, and the oscillating jet channel is arranged toward the accommodating space of the upper bowl basket.

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