Feeding box assembly and washing equipment

Abstract

The utility model relates to a putting box subassembly and washing equipment, said putting box subassembly includes: putting box and suction piece, said putting box is equipped with the sink that is used for putting detergent in, said suction piece includes pipe cavity, water inlet, water outlet and suction channel, said water inlet and said water outlet are respectively arranged in the both ends of said pipe cavity, said suction channel is located in said pipe cavity, said suction channel is located in said pipe cavity. The suction channel comprises a conical section and a straight pipe section, the water tank, the conical section, the straight pipe section and the pipe cavity are sequentially communicated, the inner diameter of the conical section is gradually reduced in the direction towards the pipe cavity, and the inner diameter of the straight pipe section is constant. The suction structure of the feeding box assembly is reasonable in design, the smoothness of liquid suction is improved, and the suction effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, specifically, relates to a dropping box subassembly and washing equipment. BACKGROUND

[0002] With the continuous development and progress of technology, the research and development of washing equipment such as washing machines and dishwashers are more and more focused on improving the user experience on the basis of meeting people's basic washing requirements. In order to realize the automatic dropping function of the washing agent, a suction member is added between the washing agent dropping box and the washing drum to mix the washing agent into the washing drum under the suction action of the suction member. In related technology, the suction structure of the dropping box is not reasonable, and there is a problem of poor liquid suction, which leads to poor suction effect of the dropping box. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the technical problems in the related art.

[0004] Therefore, the embodiment of the utility model provides a dropping box subassembly, and the suction structure of the dropping box subassembly is reasonable, which is beneficial to improving the smoothness of liquid suction and improving the suction effect.

[0005] The embodiment of the utility model also provides a washing equipment.

[0006] The dropping box subassembly of the embodiment of the utility model comprises: a dropping box, a water tank for dropping washing agent is arranged in the dropping box; a suction member, the suction member comprises a lumen, a water inlet, a water outlet and a suction channel, the water inlet and the water outlet are arranged at two ends of the lumen respectively, the suction channel comprises a conical section and a straight pipe section, the water tank, the conical section, the straight pipe section and the lumen are sequentially communicated, the inner diameter of the conical section gradually decreases along the direction towards the lumen, and the inner diameter of the straight pipe section is constant.

[0007] When the water inlet of the suction member is water and the water outlet is water, the liquid in the water tank will flow into the lumen after the conical section and the straight pipe section under the action of negative pressure, because the inner diameter of the conical section gradually decreases in the direction from top to bottom, and the inner diameter of the straight pipe section is constant. On the one hand, the funnel-shaped conical section can be used to pressurize and guide the liquid to improve the smoothness of liquid flow, on the other hand, when the suction member is processed and formed, the suction channel in the form of the conical section and the straight pipe section is not easy to produce burrs, which reduces the probability that the burrs hinder or block the suction channel, thereby improving the smoothness of liquid flow and improving the suction effect of the suction member.

[0008] In some embodiments, the axial dimension of the conical section is H1, and the axial dimension of the straight tube section is H2, wherein 0.16≤H2 / H1≤0.18.

[0009] In some embodiments, the angle between the inner wall surface of the conical section and the axis of the conical section is α, wherein 12°≤α≤20°.

[0010] In some embodiments, the tube cavity comprises an inlet section, a contraction section, a throat section, and a diffuser section, which are sequentially communicated, the water inlet is arranged at the inlet section, and the water outlet is arranged at the diffuser section, in the direction from the water inlet to the water outlet, the inner diameter of the contraction section gradually decreases, and the suction passage is arranged at one side of the diffuser section adjacent to the throat section.

[0011] In some embodiments, the dimensions in the tube cavity are arranged in at least one of the following manners: the angle between the inner wall surface of the contraction section and the axis of the contraction section is β, wherein 7°≤β≤10°; the angle between the inner wall surface of the diffuser section and the axis of the contraction section is γ, wherein 8°≤γ≤15°; the length of the throat section is L1, and the inner diameter of the throat section is φ1, wherein 1.1≤L1 / φ1≤1.5; the inner diameter of the throat section is φ1, and the inner diameter of one end of the diffuser section adjacent to the throat section is φ3, wherein 1.5≤φ3 / φ1≤1.7.

[0012] In some embodiments, the suction member further comprises a pressure relief passage, the sink is provided with a pressure relief opening, the dispensing box assembly further comprises a pressure relief valve arranged between the pressure relief opening and the pressure relief passage, and when the pressure in the tube cavity exceeds a preset value, the pressure relief valve is opened to enable the tube cavity to communicate with the sink.

[0013] In some embodiments, the tube cavity comprises an inlet section, a contraction section, a throat section, and a diffuser section, which are sequentially communicated, the water inlet is arranged at the inlet section, and the water outlet is arranged at the diffuser section, in the direction from the water inlet to the water outlet, the inner diameter of the contraction section gradually decreases, and the pressure relief passage communicates with one side of the contraction section adjacent to the water inlet.

[0014] In some embodiments, in the radial direction of the tube cavity, the suction passage and the pressure relief passage are located at the same side of the suction member.

[0015] In some embodiments, the dispensing box has a stop surface, and at least part of the pressure relief opening is arranged opposite to the stop surface.

[0016] In some embodiments, the delivery box comprises a side wall plate having a recessed portion and a baffle portion arranged on two radial sides of the pressure relief opening respectively, and the stop face is arranged on a top wall surface of the recessed portion.

[0017] The washing equipment of another embodiment of the present application comprises: a barrel assembly, which comprises an outer barrel, an inner barrel, a door seal and a delivery spray head, the inner barrel is rotationally arranged in the outer barrel, the door seal is arranged at an open position of the outer barrel, and the delivery spray head is arranged on the door seal; a delivery box assembly, which is any one of the delivery box assemblies in the embodiments of the present application, and the water outlet is in communication with the delivery spray head

[0018] According to the washing equipment of the embodiment of the present application, when water enters the water inlet of the suction member and water exits from the water outlet, the liquid in the sink will flow into the lumen through the conical section and the straight pipe section under the action of negative pressure, and the inner diameter of the conical section gradually decreases in the upward direction, and the inner diameter of the straight pipe section is constant. On the one hand, the funnel-shaped conical section can be used to pressurize and guide the liquid flow to improve the smoothness of the liquid flow, and on the other hand, when the suction member is processed and formed, the suction channel in the form of the conical section and the straight pipe section is not easy to produce burrs, thereby reducing the probability that the burrs hinder or block the suction channel, thereby improving the smoothness of the liquid flow and improving the suction effect of the suction member. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the delivery box assembly of the embodiment of the present application.

[0020] Figure 2 is a bottom view of the delivery box assembly of the embodiment of the present application.

[0021] Figure 3 is a sectional view of the delivery box assembly of the embodiment of the present application.

[0022] Figure 4 is Figure 3 is an enlarged view of A in the figure.

[0023] Figure 5 is a setting schematic view of the suction member and the pressure relief valve of the delivery box assembly of the embodiment of the present application.

[0024] Figure 6 is a schematic view of the suction member of the delivery box assembly of the embodiment of the present application.

[0025] Figure 7 is a sectional view of the suction member of the delivery box assembly of the embodiment of the present application.

[0026] Figure 8is a schematic view of a suction member of the dispensing box assembly of another embodiment of the utility model.

[0027] Figure 9 is a schematic view of a dispensing box of the dispensing box assembly of an embodiment of the utility model.

[0028] Figure 10 is a schematic view of a washing equipment of an embodiment of the utility model.

[0029] Figure 11 is a schematic view of the inside of a washing equipment of an embodiment of the utility model.

[0030] Reference signs:

[0031] 1, dispensing box; 11, sink; 12, pressure relief opening; 13, side wall plate; 131, recessed part; 132, stop face; 14, negative pressure opening; 15, discharge port; 16, enclosing part;

[0032] 2, suction member; 21, lumen; 211, inlet section; 212, contraction section; 213, throat section; 214, pressure recovery section; 22, water inlet; 23, water outlet; 24, suction passage; 241, tapered section; 242, straight pipe section; 25, pressure relief passage;

[0033] 3, pressure relief valve;

[0034] 4, water inlet pipe;

[0035] 5, water outlet pipe;

[0036] 6, barrel assembly; 61, outer barrel; 62, inner barrel; 63, door seal; 64, dispensing spray head; 65, door bowl spray head;

[0037] 7, washing machine door. DETAILED DESCRIPTION

[0038] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0039] The drawings are referred to below Figures 1 to 11 The dispensing box assembly and the washing equipment of the embodiments of the utility model are described below.

[0040] As Figures 1 to 4As shown, the embodiment of the utility model discloses a delivery box subassembly, comprising: delivery box 1 and suction piece 2. Delivery box 1 is equipped with the water tank 11 for delivering the detergent, and suction piece 2 includes the lumen 21, the water inlet 22, the water outlet 23 and the suction passage 24, and the water inlet 22 and the water outlet 23 are arranged at both ends of the lumen 21 respectively, and the suction passage 24 includes the conical section 241 and the straight pipe section 242, and the water tank 11, the conical section 241, the straight pipe section 242 and the lumen 21 are sequentially communicated, and the inner diameter of the conical section 241 gradually reduces along the direction towards the lumen 21, and the inner diameter of the straight pipe section 242 is constant.

[0041] According to the embodiment of the utility model discloses a delivery box subassembly, when the water inlet 22 of suction piece 2 is water, and the water outlet 23 is water, the liquid in the water tank 11 will flow into the lumen 21 after the conical section 241 and the straight pipe section 242 under the action of negative pressure, because the inner diameter of the conical section 241 gradually reduces in the direction from top to bottom, and the inner diameter of the straight pipe section 242 is constant. On the one hand, the funnel-shaped conical section 241 can be used to pressurize and guide the liquid to improve the smoothness of liquid flow. It can be understood that because the inner diameter of the conical section 241 gradually reduces along the direction towards the lumen 21, so that the cross-sectional area of the conical section 241 gradually reduces, when the liquid is introduced into the lumen 21 from the conical section 241, the pressure of the liquid entering the lumen 21 is increased, thereby improving the flow rate of the liquid and improving the smoothness of the liquid flow.

[0042] On the other hand, when the suction piece 2 is processed and formed, the suction passage 24 in the form of the conical section 241 and the straight pipe section 242 is not easy to produce burrs, which reduces the probability of burrs hindering or blocking the suction passage 24, thereby improving the smoothness of liquid flow and improving the suction effect of the suction piece 2.

[0043] In addition, due to the existence of surface tension of water, in the related art, the upper port position of the straight cylinder type suction passage 24 is easy to form a water film, which blocks the water from smoothly entering the suction passage 24. The upper half (i.e. the conical section 241) of the suction passage 24 of the embodiment of the utility model is designed as a funnel-shaped structure, which can destroy the surface tension of the water at the upper port of the suction passage 24, so that the water flow can smoothly pass through the suction passage 24 and enter the lumen 21.

[0044] In the examples of the present application, the inner diameter of the straight pipe section 242 is substantially equal to the inner diameter of the lower port of the conical section 241. Compared with the scheme that the suction passage 24 is funnel-shaped as a whole, the hole diameter of the lower port of the suction passage 24 can be designed to be narrow, and the inner diameter of the straight pipe section 242 is constant. When the suction piece 2 is processed and formed, the position of the lower half (i.e. the straight pipe section 242) of the suction passage 24 is not easy to produce burrs, thereby reducing the probability of burrs hindering or blocking the suction passage 24 and improving the smoothness of liquid flow.

[0045] Optionally, as shown in Figure 7 The axial dimension of the conical section 241 is H1, and the axial dimension of the straight pipe section 242 is H2, where 0.16≤H2 / H1≤0.18. For example, H2 / H1 can be 0.16, 0.17, 0.18. The inventors of the present application have found through experimental research that when the ratio of H2 / H1 is too large (i.e., H2 / H1 is greater than 0.18), the conical section 241 accounts for a small proportion of the size of the entire suction passage 24, which is not enough to break the tension of the water film, and is prone to cause water flow problems. When the ratio of H2 / H1 is too small (i.e., H2 / H1 is less than 0.16), the straight pipe section 242 accounts for a small proportion of the size of the entire suction passage 24, which can cause the straight pipe section 242 to be prone to burr when formed, blocking the normal flow of water. Therefore, the dispensing box assembly of the embodiments of the present application designs the ratio of H2 / H1 within the above range, which is beneficial to improve the smoothness of liquid flow.

[0046] For example, H1 can be between 6mm-8mm, and H2 can be between 0.96mm-1.44mm.

[0047] Optionally, as shown in Figure 7 The angle between the inner wall surface of the conical section 241 and the axis of the conical section 241 is α, where 12°≤α≤20°. For example, α can be 12°, 14°, 16°, 18°, 20°. The inventors of the present application have found through experimental research that when the taper of the inner wall surface of the conical section 241 adopts the above numerical range, it is beneficial to improve the smoothness of liquid flow, and burrs are not easily generated during processing and forming.

[0048] In some embodiments, as shown in Figure 7 The lumen 21 includes an inlet section 211, a contraction section 212, a throat section 213, and an expansion section 214, which are sequentially communicated, the water inlet 22 is arranged at the inlet section 211, and the water outlet 23 is arranged at the expansion section 214. In the direction from the water inlet 22 to the water outlet 23, the inner diameter of the contraction section 212 gradually decreases, the inner diameter of the expansion section 214 gradually increases, and the inner diameter of the expansion section is greater than the inner diameter of the throat section 213.

[0049] Since the inner diameter of the contraction section 212 gradually decreases, the flow rate of the liquid in the lumen 21 can be increased to make the pressure of the lumen 21 at this position the lowest, which is beneficial to improve the negative pressure suction effect of the suction passage 24. In addition, since the inner diameter of the expansion section 214 gradually increases, the flow rate of the liquid gradually approaches the flow rate of the inlet section 211, the energy loss of the liquid is reduced, and the flow of the liquid is more stable.

[0050] As shown in Figure 7As shown, the suction channel 24 is connected to the diffuser section 214, and the suction channel 24 is arranged adjacent to the throat section 213. In other words, the suction channel 24 is located on the side of the diffuser section 214 adjacent to the throat section 213. It can be understood that the cross-section of the diffuser section 214 is larger than that of the throat section 213, so the flow velocity of the fluid entering the diffuser section 214 from the throat section 213 will be slowed down. Furthermore, the liquid flow velocity in the inner peripheral wall region adjacent to the diffuser section 214 will further decrease due to the abrupt change in the cross-section of the diffuser section 214 and the throat section 213. Therefore, the probability of liquid splashing out of the upper port of the suction channel 24 is small, that is, the water flow in the suction member 2 is not likely to overflow into the water tank 11.

[0051] Optionally, such as Figure 7 As shown, the angle between the inner wall surface of the contraction section 212 and the axis of the contraction section 212 is β, where 7°≤β≤10°. For example, β can be 7°, 7.5°, 8°, 8.5°, 9°, 9.5°, or 10°. The inventors of this application discovered through experimental research that when the taper of the contraction section 212 is within the above-mentioned numerical range, turbulence is less likely to occur when liquid flows through the contraction section 212, thus improving the reliability of the suction device 2 during suction.

[0052] Optionally, such as Figure 7 As shown, the angle between the inner wall surface of the diffuser section 214 and the axis of the contraction section 212 is γ, where 8° ≤ γ ≤ 15°. For example, γ can be 8°, 10°, 11°, 13°, or 15°. The inventors of this application discovered through experimental research that when γ adopts the above-mentioned numerical range, the liquid flow velocity can gradually approach the flow velocity of the inlet section 211, further reducing the energy loss of the liquid and making the liquid flow more stable.

[0053] Optionally, such as Figure 7 As shown, the length of the throat segment 213 is L1, and the inner diameter of the throat segment 213 is φ1, where 1.1 ≤ L1 / φ1 ≤ 1.5. For example, the ratio of L1 / φ1 can be 1.1, 1.25, 1.35, 1.45, or 1.5. The inventors of this application discovered through experimental research that when the length and inner diameter of the throat segment 213 are within the above-mentioned numerical range, liquid splashing can be reduced while simultaneously decreasing the length of the suction component 2, making the structure of the suction component 2 more compact and reducing the space occupied by the suction component 2.

[0054] Furthermore, the inner diameter of the throat section 213 is φ1, and the inner diameter of the inlet section 211 is φ2, with 0.4 ≤ φ1 / φ2 ≤ 0.8. For example, φ1 / φ2 can be 0.4, 0.5, 0.6, 0.7, or 0.8. The inventors of this application have discovered through experimental research that using the above-mentioned numerical range for φ1 / φ2 can improve the suction effect of the suction component 2 and reduce the probability of liquid splashing out of the upper port of the suction channel while reducing burrs.

[0055] For example, the inner diameter φ1 of the throat segment 213 can be selected between 3mm and 5mm, and the inner diameter φ2 of the inlet segment 211 can be selected between 6mm and 8mm, while ensuring that 0.4≤φ1 / φ2≤0.8.

[0056] Optionally, such as Figure 7 As shown, the inner diameter of the throat section 213 is φ1, and the inner diameter of the diffuser section 214 adjacent to the throat section 213 is φ3, where 1.5 ≤ φ3 / φ1 ≤ 1.7. For example, φ3 / φ1 can be 1.5, 1.6, or 1.7. The inventors of this application discovered through experimental research that when the ratio of the inner diameters of the diffuser section 214 and the throat section 213 is within the above-mentioned range, the probability of water overflowing from the suction channel 24 into the water tank 11 within the suction member 2 can be further reduced, thus improving the reliability of the suction member 2 during suction.

[0057] In some embodiments, such as Figures 4 to 7 As shown, the suction component 2 also includes a pressure relief channel 25, the water tank 11 is provided with a pressure relief opening 12, and the dispensing box assembly also includes a pressure relief valve 3. The pressure relief valve 3 is located between the pressure relief opening 12 and the pressure relief channel 25. When the pressure in the cavity 21 exceeds a preset value, the pressure relief valve 3 opens to connect the cavity 21 with the water tank 11. It can be understood that when a blockage occurs in the cavity 21, the pressure in the cavity 21 will increase. When the pressure exceeds the preset value, the pressure relief valve 3 can automatically open, thereby guiding the liquid in the cavity 21 into the water tank 11, thus avoiding the problem of the suction component 2 and its connecting pipes bursting, and improving the reliability of the dispensing box assembly during use.

[0058] For example, such as Figure 4 As shown, the pressure relief valve 3 includes a valve body, a valve core, a spring, and a sealing ring. The valve core, spring, and sealing ring are all installed inside the valve body. Under the action of the spring, the valve core blocks the pressure relief hole of the valve body. When the pressure of the pressure relief hole exceeds the preset value, the water pressure can overcome the resistance of the spring and push the valve core open to relieve pressure.

[0059] It should be noted that, as Figure 9 As shown, the bottom or side wall of the dispensing box 1 is provided with a discharge port 15, which is connected to the washing chamber of the washing equipment. Therefore, when the water flow introduced into the water tank 11 by the suction component 2 due to pressure relief can be discharged into the washing chamber through the discharge port 15.

[0060] Optionally, such as Figures 6 to 7As shown, the pressure relief channel 25 is arranged upstream of the throat section 213. In the example, the pressure relief channel 25 is arranged on one side of the converging section 212 adjacent to the water inlet 22. It can be understood that due to the narrow inner diameter of the converging section 212, foreign matters in the water or burrs remaining in the lumen 21 are likely to block the converging section 212. The washing apparatus of the embodiment of the present application arranges the pressure relief channel 25 upstream of the throat section 213. When the throat section 213 downstream of the pressure relief channel 25 or the converging section 212 downstream of the pressure relief channel 25 is blocked, the water flow can flow into the sink 11 through the pressure relief channel 25, thereby improving the reliability of the suction member 2 in use.

[0061] In the example of the present application, as shown in Figure 6 and Figure 8 In the radial direction of the lumen 21, the suction channel 24 and the pressure relief channel 25 are located on the same side of the suction member 2. In the example, the pressure relief channel 25 is substantially parallel to the extension direction of the suction channel 24 to facilitate the assembly of the suction member 2 and the dispensing box 1. In the example, the pressure relief opening 12 and the negative pressure opening 14 can be arranged on the bottom wall of the sink 11. The pressure relief opening 12 is in communication with the pressure relief channel 25, and the negative pressure opening 14 is in communication with the suction channel 24. Since the suction channel 24 and the pressure relief channel 25 are located on the same side of the suction member 2, the assembly of the suction member 2 and the dispensing box 1 can be facilitated, and the structure is compact and occupies less space.

[0062] In an example, as shown in Figure 6 The suction channel 24 and the pressure relief channel 25 are located on the same side of the suction member 2. The axis of the pressure relief channel 25 and the axis of the suction channel 24 are both orthogonal to the axis of the lumen 21. The axis of the suction channel 24 intersects the axis of the lumen 21, and the axis of the pressure relief channel 25 is spaced apart from the axis of the lumen 21. In other words, in the projection plane orthogonal to the axis of the suction channel 24, the center of the suction channel 24 is located on the axis of the lumen 21, and the center of the pressure relief channel 25 is spaced apart from the axis of the lumen 21.

[0063] In another example, as shown in Figure 8 The suction channel 24 and the pressure relief channel 25 are located on the same side of the suction member 2. The axis of the pressure relief channel 25 and the axis of the suction channel 24 are both orthogonal to the axis of the lumen 21 and both have intersection points. In other words, in the projection plane orthogonal to the axis of the suction channel 24, the center of the suction channel 24 and the center of the pressure relief channel 25 are both located on the axis of the lumen 21. The inventors of the present application have found through experimental research that when the center of the suction channel 24 and the center of the pressure relief channel 25 are both located on the axis of the lumen 21, the arrangement of the pressure relief channel 25 can avoid adversely affecting the suction effect of the suction member 2 (i.e., the Bernoulli effect of the suction member 2), and the pressure relief effect of the pressure relief channel 25 can be guaranteed.

[0064] Optionally, as shown inFigure 4 and Figure 9 As shown in

[0065] Specifically, as shown in Figure 4 and Figure 9 The dispensing box 1 comprises a side wall plate 13 and a surrounding part 16, the side wall plate 13 has a recessed part 131, the recessed part 131 and the surrounding part 16 are arranged on the two sides of the pressure relief opening 12 in the radial direction respectively, and the stop face 132 is arranged on the top wall face of the recessed part 131. It can be understood that the recessed part 131 and the surrounding part 16 can constrain the water flow sprayed from the pressure relief opening 12, so as to avoid the problem of disordered spraying of the discharged liquid.

[0066] Specifically, the side wall face of the recessed part 131 is a semicylindrical arc face, the inner wall face of the surrounding part 16 is a semicylindrical arc face, the recessed part 131 and the surrounding part 16 jointly form a cavity for mounting the pressure relief valve 3, and the stop face 132 is arranged on the top wall face of the recessed part 131. It can be understood that the water flow sprayed from the pressure relief opening 12 can impact the top face (the stop face 132) of the recessed part 131, so as to reduce the kinetic energy of the sprayed water flow, thereby reducing the probability of splashing of the water flow in the sink 11 and ensuring the stability of the water flow during pressure relief.

[0067] Specifically, the side wall face of the recessed part 131 is a semicylindrical arc face, the inner wall face of the surrounding part 16 is a semicylindrical arc face, the recessed part 131 and the surrounding part 16 jointly form a cavity for mounting the pressure relief valve 3, and the stop face 132 is arranged on the top wall face of the recessed part 131. It can be understood that the water flow sprayed from the pressure relief opening 12 can impact the top face (the stop face 132) of the recessed part 131, so as to reduce the kinetic energy of the sprayed water flow, thereby reducing the probability of splashing of the water flow in the sink 11 and ensuring the stability of the water flow during pressure relief. Figure 10 Figure 11 As shown in

[0068] Specifically, the washing equipment further comprises a washing machine door 7, and the washing machine door 7 is arranged at the position of the door seal 63 in an openable and closable mode. The door seal 63 forms a seal between the door bowl of the washing machine door 7 and the outer cylinder 61. Specifically, the door seal 63 is further provided with a door bowl spray head 65, and the door bowl spray head 65 can spray water towards the door bowl to wash the door bowl, so that the user can clearly observe the internal condition of the washing cavity through the door bowl of the washing machine door 7.

[0069] ​According to the embodiment of the utility model, when the water inlet 22 of the suction element 2 is water inlet and the water outlet 23 is water outlet, the liquid in the sink 11 will flow into the lumen 21 through the conical section 241 and the straight pipe section 242 under the action of negative pressure, because the inner diameter of the conical section 241 gradually decreases in the direction from top to bottom, and the inner diameter of the straight pipe section 242 is constant. On the one hand, the funnel-shaped conical section 241 can be used to pressurize and guide the liquid to improve the smoothness of liquid flow, on the other hand, when the suction element 2 is processed and formed, burrs are not easy to be generated in the suction channel 24 in the form of the conical section 241 and the straight pipe section 242, thereby reducing the probability that the burrs hinder or block the suction channel 24, so that the smoothness of liquid flow can be improved and the suction effect of the suction element 2 can be improved.

[0070] For example, the washing equipment can be a washing machine, a dishwasher or other equipment for washing other products, which is not limited in the application.

[0071] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0072] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0073] In the utility model, unless otherwise specifically defined and limited, the terms "set", "connected", "connected", "fixed" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0074] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0075] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0076] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A drop box assembly, characterized by, include: A dispensing box, wherein the dispensing box is equipped with a water tank for dispensing detergent; A suction device includes a cavity, an inlet, an outlet, and a suction channel. The inlet and outlet are respectively arranged at both ends of the cavity. The suction channel includes a conical section and a straight section. The water tank, the conical section, the straight section, and the cavity are connected in sequence. The inner diameter of the conical section gradually decreases in the direction toward the cavity, while the inner diameter of the straight section remains constant.

2. The dispensing box assembly of claim 1, wherein, The axial dimension of the tapered section is H1, and the axial dimension of the straight pipe section is H2, wherein 0.16≤H2 / H1≤0.

18.

3. The dispensing box assembly of claim 1, wherein, The angle between the inner wall surface of the conical segment and the axis of the conical segment is α, where 12°≤α≤20°.

4. The dispensing box assembly of claim 1, wherein, The lumen includes an inlet section, a contraction section, a throat section, and a diffuser section, which are connected sequentially. The inlet is located in the inlet section, and the outlet is located in the diffuser section. The inner diameter of the contraction section gradually decreases from the inlet to the outlet. The suction channel is located on the side of the diffuser section adjacent to the throat section.

5. The dispensing box assembly of claim 4, wherein, The dimensions within the lumen are set using at least one of the following methods: The angle between the inner wall surface of the contraction section and the axis of the contraction section is β, where 7°≤β≤10°; The angle between the inner wall surface of the diffuser section and the axis of the contraction section is γ, where 8°≤γ≤15°; The length of the throat segment is L1, and the inner diameter of the throat segment is φ1, wherein 1.1≤L1 / φ1≤1.5; The inner diameter of the throat segment is φ1, and the inner diameter of the diffuser segment adjacent to one end of the throat segment is φ3, wherein 1.5≤φ3 / φ1≤1.

7.

6. The dispensing box assembly of any one of claims 1-5, wherein, The suction component also includes a pressure relief channel, the water tank is provided with a pressure relief opening, and the dispensing box assembly also includes a pressure relief valve. The pressure relief valve is disposed between the pressure relief opening and the pressure relief channel. When the pressure in the cavity exceeds a preset value, the pressure relief valve opens to connect the cavity with the water tank.

7. The dispensing box assembly of claim 6, wherein, The pipe includes an inlet section, a contraction section, a throat section, and a diffuser section. The inlet section, the contraction section, the throat section, and the diffuser section are connected in sequence. The inlet is located in the inlet section, and the outlet is located in the diffuser section. In the direction from the inlet to the outlet, the inner diameter of the contraction section gradually decreases. The pressure relief channel is connected to the side of the contraction section adjacent to the inlet.

8. The dispensing box assembly of claim 6, wherein, In the radial direction of the lumen, the suction channel and the pressure relief channel are located on the same side of the suction element.

9. The dispensing box assembly of claim 6, wherein, The delivery box has a stop surface, and at least a portion of the pressure relief opening is arranged opposite to the stop surface.

10. The dispensing box assembly of claim 9, wherein, The delivery box includes a side wall panel and a enclosure. The side wall panel has a recessed portion. The recessed portion and the enclosure are respectively arranged on the radial sides of the pressure relief opening. The stop surface is provided on the top wall surface of the recessed portion.

11. A washing apparatus characterized by comprising: include: A barrel assembly, comprising an outer barrel, an inner barrel, a door seal and a dispensing showerhead, the inner barrel is rotatably arranged in the outer barrel, the door seal is arranged at an open position of the outer barrel, and the dispensing showerhead is arranged on the door seal; A dispensing box assembly, the dispensing box assembly is the dispensing box assembly of any one of claims 1-10, and the water outlet is in communication with the dispensing showerhead.

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