Base, water purifier and mold

Abstract

The application provides a base, a pure drinking machine and a mold. The base is a spray-free injection molding part, and the base comprises: a base body, the base body having an outer surface and an inner surface; a connecting structure arranged on the inner surface, the connecting structure having a mounting surface, the mounting surface being arranged away from the inner surface; a screw column arranged on the mounting surface; and a connecting rib arranged between the connecting structure and the inner surface to connect the connecting structure and the inner surface; wherein the connecting rib is arranged at a first preset angle between an extension direction of the connecting rib and a flow direction of an injection molding melt, and the first preset angle is greater than 15°. The application effectively solves the problem that the spray-free injection molding part in the prior art is prone to appearance defects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a base, a purified drinking machine and a mold. BACKGROUND

[0002] At present, household appliances usually adopt a spraying process to perform surface treatment on injection molded parts to realize the improvement of various colors and appearance textures and to cover part of the appearance defects, but there are problems of high cost and environmental pollution. Therefore, the spray-free technology can be used to replace and make up for the problems of the spraying process, and the injection molded part of the spray-free material has unique light and shadow effects and metal luster after molding, and can achieve appearance effects comparable to or better than spraying without secondary treatment. The technology has advantages of excellent function, low cost, environmental protection and the like.

[0003] However, the spray-free material is prone to appearance defects such as flow marks, weld marks and gate marks during injection molding, and the position or degree of occurrence is difficult to predict, and the consistency is poor. SUMMARY

[0004] The main purpose of the present application is to provide a base, a purified drinking machine and a mold to solve the problem that the spray-free injection molded part in the prior art is prone to appearance defects.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a base is provided, the base is a spray-free injection molded part, and the base comprises: a base body, the base body has an outer surface and an inner surface; a connecting structure, provided on the inner surface, the connecting structure has a mounting surface, the mounting surface is provided away from the inner surface; a screw column, provided on the mounting surface; a connecting rib, provided between the connecting structure and the inner surface, to connect the connecting structure and the inner surface; wherein the extension direction of the connecting rib and the flow direction of the injection molded melt are arranged at a first preset angle, and the first preset angle is greater than 15°.

[0006] Further, the base further comprises: a matching part, provided on the inner surface; wherein the matching part is a plurality of, and the plurality of matching parts are arranged at intervals along the inner circumferential surface of the base body.

[0007] Further, the matching part has a mounting recess and a stop surface, the stop surface forms at least part of the mounting recess, and the stop surface has a preset distance from the outer edge of the base body, and the preset distance is less than or equal to 50mm.

[0008] Further, the matching part comprises: two first connecting plates arranged opposite to each other; a second connecting plate, the second connecting plate is connected with the two first connecting plates to form the mounting recess around, and the surface of the second connecting plate facing the mounting recess is the stop surface; wherein the second connecting plate and each first connecting plate are arranged at a second preset angle.

[0009] Further, the second connecting plate has an opening in communication with the mounting recess, the opening facing away from the inner surface.

[0010] Further, the base further comprises: a first reinforcing rib, the first reinforcing rib being connected with the outer circumferential surface and the inner surface of the connecting structure; wherein the first reinforcing rib is a plurality of, the plurality of first reinforcing ribs being arranged at intervals around the circumference of the connecting structure; the extending direction of the first reinforcing rib is arranged at a third preset angle with the flowing direction of the injection melt, and the third preset angle is greater than 15°.

[0011] Further, the base further comprises: a second reinforcing rib, the second reinforcing rib being connected with the outer circumferential surface and the mounting surface of the screw column; the second reinforcing rib is a plurality of, the plurality of second reinforcing ribs being arranged at intervals around the circumference of the screw column.

[0012] Further, the outer surface or the inner surface has a gate forming area corresponding to the gate of the mold, along the flowing direction of the injection melt, the minimum distance between the screw column and the gate forming area is greater than the distance between the screw column and the filling end of the base body, and the screw column is located between the filling end and the gate forming area; or, the minimum distance between the screw column and the gate forming area is greater than or equal to 20mm.

[0013] Further, the base body has a buffer recess, the buffer recess being arranged corresponding to the gate of the mold.

[0014] Further, the buffer recess is located in the middle of the base body, and the screw column is one; or, the screw column is a plurality of, and the plurality of screw columns are arranged around the buffer recess.

[0015] According to another aspect of the present application, a pure drinking machine is provided, comprising the above-mentioned base.

[0016] According to another aspect of the present application, a mold is provided, the mold having a cavity for forming the above-mentioned base, and the mold further having a gate in communication with the cavity.

[0017] Further, the mold further has a buffer flow channel and a melt inlet, the first end of the buffer flow channel being in communication with the melt inlet, and the buffer flow channel being in communication with the end of the gate away from the cavity, so that the injection melt flows through the melt inlet, the buffer flow channel and the gate in sequence and then enters the cavity.

[0018] By applying the technical scheme of the present application, the base is an injection molded product and is made of a spray-free material. The screw column is arranged on the connecting structure, the connecting structure is mounted on the inner surface through the connecting rib, that is, the screw column is arranged on the inner surface through the connecting structure and the connecting rib in sequence, thereby avoiding the arrangement of the screw column from affecting the smooth flow of the melt on the outer surface, reducing the appearance defects such as flow marks, gate marks and weld marks on the outer surface, and solving the problem that the spray-free injection molded part is prone to appearance defects. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application, and are incorporated herein by reference. The drawings illustrate preferred embodiments of the application and, together with the description, serve to explain the application. In the drawings:

[0020] Figure 1 A perspective view of an embodiment of the base according to the application is shown;

[0021] Figure 2 An enlarged view of the base in Figure 1 at X is shown;

[0022] Figure 3 An enlarged view of the base in Figure 1 at Y is shown;

[0023] Figure 4 A top view of the base in Figure 1 is shown;

[0024] Figure 5 A perspective view of the base in Figure 1 assembled with the mold is shown;

[0025] Figure 6 A top view of the base in Figure 5 assembled with the mold is shown;

[0026] Figure 7 A cross-sectional view of the base in Figure 6 assembled with the mold in A-A is shown;

[0027] Figure 8 A side view of the base in Figure 1 is shown;

[0028] Figure 9 A cross-sectional view of the base in Figure 8 in B-B is shown; and

[0029] Figure 10 An enlarged view of the base in Figure 9 at Z is shown.

[0030] Wherein the above mentioned drawings comprise the following reference signs:

[0031] 11. Outer surface; 12. Inner surface; 13. Gating and forming area; 30. Gating; 50. Buffer runner; 60. Melt inlet; 200. Buffer recess; 300. Connecting structure; 301. Mounting surface; 310. Enclosure plate; 320. Mounting plate; 400. Screw post; 510. Connecting rib; 511. First rib segment; 512. Second rib segment; 513. Third rib segment; 520. First reinforcing rib; 530. Second reinforcing rib; 600. Mating part; 601. Mounting recess; 602. Stop surface; 603. First connecting plate; 604. Second connecting plate; 6041. Opening. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] In this invention, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0035] To address the issue of appearance defects easily occurring in existing paint-free injection molded parts, this application provides a base, a water purifier, and a mold.

[0036] like Figures 1 to 10 As shown, the base is a paint-free injection molded part, comprising a base body, a connecting structure 300, screw posts 400, and connecting ribs 510. The base body has an outer surface 11 and an inner surface 12. The connecting structure 300 is disposed on the inner surface 12, and the connecting structure 300 has a mounting surface 301, which is disposed away from the inner surface 12. The screw posts 400 are disposed on the mounting surface 301. The connecting ribs 510 are disposed between the connecting structure 300 and the inner surface 12 to connect the connecting structure 300 and the inner surface 12. The extending direction of the connecting ribs 510 forms a first preset angle with the flow direction of the injection molten metal, and the first preset angle is greater than 15°.

[0037] According to the technical scheme, the base is an injection molding product and is made of a spray-free material. The screw column 400 is arranged on the connecting structure 300, and the connecting structure 300 is arranged on the inner surface 12 through the connecting rib 510, that is, the screw column 400 is arranged on the inner surface 12 through the connecting structure 300 and the connecting rib 510 in sequence, thereby avoiding the arrangement of the screw column 400 from affecting the smooth flow of the melt on the outer surface 11, reducing the appearance defects such as flow marks, gate marks and weld marks on the outer surface 11, and solving the problem that the spray-free injection molded part is prone to appearance defects.

[0038] In the embodiment, the base is made of a spray-free technology, that is, the base is an injection molding product and is made of a spray-free material. The spray-free injection molded part has a unique light and shadow effect and a metallic luster after molding, and can achieve an appearance effect comparable to or better than that of spraying without secondary treatment. The technology has advantages of excellent function, low cost and environmental protection.

[0039] In the embodiment, the inner surface 12 is arranged on the inner side of the outer surface 11 and opposite to the outer surface 11.

[0040] It should be noted that when the base is applied to a household appliance (such as a pure drinking machine), the outer surface 11 is a component of the appearance of the household appliance, that is, the outer surface 11 is a surface exposed to the application environment and can be seen by the user. The inner surface 12 is located inside the household appliance, that is, the inner surface 12 is a surface hidden inside the household appliance and cannot be seen by the user.

[0041] In the embodiment, the mounting surface 301 is a plane, thereby increasing the connection area between the screw column 400 and the inner surface 12, improving the connection stability between the screw column 400 and the base body, improving the structural strength of the base, and making the processing of the screw column 400 easier and simpler, and reducing the processing difficulty. The central axis of the screw column 400 is arranged perpendicular to the mounting surface 301.

[0042] It should be noted that when the base is injection molded by a mold, the cavity of the mold is used to form the base, the gate (also called the pouring port) is communicated with the cavity, and the material in the gate will form a gate forming part. The area where the base is connected with the gate forming part is the gate forming area.

[0043] Optionally, the screw column 400 is one, and the connecting structure 300 is one; or the screw column 400 is multiple, and the connecting structure 300 is multiple, and the multiple connecting structures 300 and the multiple screw columns 400 are arranged one by one in correspondence.

[0044] In the embodiment, the screw column 400 is three, the connecting structure 300 is three, and the fastener is three. The three fasteners are arranged on the screw column 400 and other structures to connect the base and other structures.

[0045] In the embodiment, the first preset included angle between the extension direction of the connecting rib 510 and the flow direction of the injection melt is greater than 15°. In this way, since the connecting area between the connecting rib 510 and the inner surface 12 is smaller than the connecting area between the screw column 400 and the inner surface 12, the arrangement of the screw column 400 does not affect the smooth flow of the melt on the outer surface 11, and the flow marks on the outer surface 11 are prevented. At the same time, the structure of the connecting rib 510 is relatively simple, thereby reducing the processing cost of the base.

[0046] In the embodiment, along the extension direction of the connecting rib 510, the side wall of the root where the first end of the connecting rib 510 is connected with the inner surface 12 is a first arc surface, and the side wall of the root where the second end of the connecting rib 510 is connected with the inner surface 12 is a second arc surface, and the first arc surface and the second arc surface are both curved towards the inner surface 12.

[0047] In the embodiment, the connecting rib 510 is an arc-shaped rib, and the first preset included angle is the included angle between the tangent direction of the arc-shaped rib and the flow direction of the injection melt.

[0048] As shown in Figure 2 , the connecting structure 300 includes a surrounding plate 310 and a mounting plate 320. The connecting rib 510 is connected with the first end surface of the surrounding plate 310. The mounting plate 320 is arranged on the second end surface of the surrounding plate 310, and the surface of the mounting plate 320 away from the inner surface 12 is a mounting surface. In this way, the above arrangement makes the structure of the connecting structure 300 more simple, easy to process and realize, and reduces the processing cost and difficulty of the base.

[0049] As shown in Figure 1 , Figure 2 and Figure 4 , the base further includes a matching part 600. The matching part 600 is arranged on the inner surface 12. The matching part 600 is a plurality of matching parts 600 arranged at intervals along the inner circumferential surface of the base body. In this way, the base can be assembled with other structures through the matching part 600, thereby reducing the disassembly and assembly difficulty of the base and other structures.

[0050] As shown in Figure 2As shown in the figures, the fitting part 600 has a mounting recess 601 and a stop face 602, the stop face 602 forms at least part of the mounting recess 601, and the stop face 602 has a preset distance from the outer edge of the base body, which is less than or equal to 50 mm. In this way, when the base needs to be assembled with other structures, the protrusions of the other structures are inserted into the mounting recess 601, and the protrusions are limited by the stop face 602 and / or the inner surface of the mounting recess 601, thereby achieving the assembly of the base with other structures. At the same time, the above-mentioned arrangement can reduce the turning of the aluminum sheet during the injection of the injection melt on the base, further avoiding the appearance of flow marks on the outer surface 11 of the base.

[0051] As shown in the figures, Figure 2 The fitting part 600 includes two first connecting plates 603 and a second connecting plate 604 arranged opposite to each other. The second connecting plate 604 is connected with both of the two first connecting plates 603 to surround the mounting recess 601, and the surface of the second connecting plate 604 facing the mounting recess 601 is the stop face 602. Among them, the second connecting plate 604 is arranged at a second preset angle with each first connecting plate 603. In this way, the above-mentioned arrangement makes the structure of the fitting part 600 more simple, easy to process and realize, and reduces the processing cost of the fitting part 600.

[0052] As shown in the figures, Figure 2 The second connecting plate 604 has an opening 6041 communicating with the mounting recess 601, and the opening 6041 faces away from the inner surface 12. In this way, the above-mentioned arrangement makes the opening 6041 upwardly arranged so that the protrusions of other structures can be inserted into the mounting recess 601.

[0053] As shown in the figures, Figure 1 , Figure 3 and Figure 10 The base further includes a first reinforcing rib 520. The first reinforcing rib 520 is connected with the outer circumferential surface of the connecting structure 300 and the inner surface 12. In this way, the above-mentioned arrangement increases the connection strength between the connecting structure 300 and the inner surface 12, thereby improving the overall structural strength of the base, avoiding the screw column 400 from being separated from the inner surface 12 and affecting the assembly of the base with other structures.

[0054] In the present embodiment, the side wall of the root of the first reinforcing rib 520 connected with the inner surface 12 is a third arc surface, the third arc surface is curved towards the inner surface 12, and the first reinforcing rib 520 is arranged on the outer circumferential surface of the enclosing plate 310.

[0055] Optionally, the first reinforcing rib 520 is a plurality of first reinforcing ribs 520, and the plurality of first reinforcing ribs 520 are arranged at intervals around the circumference of the connecting structure 300. In this way, the above-mentioned arrangement increases the contact area between the first reinforcing rib 520 and the connecting structure 300 and the inner surface 12, thereby improving the strength reinforcing effect of the first reinforcing rib 520.

[0056] In the embodiment, the first reinforcing ribs 520 are four, and the four first reinforcing ribs 520 are arranged at intervals around the circumference of the connecting structure 300. It should be noted that the number of the first reinforcing ribs 520 is not limited thereto, and can be adjusted according to the working conditions and use requirements. Alternatively, the first reinforcing ribs 520 are two, or three, or five, or six, or more.

[0057] Specifically, two first reinforcing ribs 520 are located on one side of the connecting structure 300, and the other two first reinforcing ribs 520 are located on the other side of the connecting structure 300, and the two first reinforcing ribs 520 located on different sides are oppositely arranged.

[0058] Alternatively, the extension directions of all the first reinforcing ribs 520 are consistent, so as to reduce the characteristic filling speed gradient change of the parallel flow direction of the injection melt, and further prevent the appearance of flow marks on the outer surface 11 to affect the appearance of the appearance part.

[0059] Alternatively, the thickness of the root of the connecting rib 510 is less than or equal to 0.6T; wherein T is the main material thickness of the base body. In this way, the above setting avoids the influence of the setting of the connecting rib 510 on the smooth flow of the melt on the outer surface 11, further preventing the appearance of flow marks on the outer surface 11 to affect the appearance of the appearance part.

[0060] Alternatively, the thickness of the root of the first reinforcing rib 520 is less than or equal to 0.6T; wherein T is the main material thickness of the base body. In this way, the above setting avoids the influence of the setting of the first reinforcing rib 520 on the smooth flow of the melt on the outer surface 11, further preventing the appearance of flow marks on the outer surface 11 to affect the appearance of the appearance part.

[0061] In the embodiment, the extension direction of the first reinforcing rib 520 is arranged at a third preset angle with the flow direction of the injection melt, and the third preset angle is greater than 15°. In this way, the above setting ensures that the extension direction of the first reinforcing rib 520 is close to parallel with the filling direction of the injection melt during injection, and further reduces the characteristic filling speed gradient change of the parallel flow direction of the injection melt, further preventing the appearance of flow marks on the outer surface 11 to affect the appearance of the appearance part.

[0062] As shown in Figure 1 and Figure 3 The base further comprises a second reinforcing rib 530. The second reinforcing rib 530 is connected to the outer circumferential surface of the screw column 400 and the mounting surface 301. In this way, the above setting increases the contact area between the second reinforcing rib 530 and the screw column 400 and the mounting surface 301, and further improves the strength reinforcement effect of the second reinforcing rib 530.

[0063] Optionally, there may be multiple second reinforcing ribs 530, which are spaced apart circumferentially around the screw post 400. This arrangement increases the contact area between the second reinforcing ribs 530 and the screw post 400 and the mounting surface 301, thereby enhancing the strength reinforcement effect of the second reinforcing ribs 530.

[0064] In this embodiment, there are four second reinforcing ribs 530, which are arranged circumferentially around the screw post 400. It should be noted that the number of second reinforcing ribs 530 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, there may be two, three, five, six, or more second reinforcing ribs 530.

[0065] Optionally, the outer surface 11 or the inner surface 12 has a gate forming area 13 corresponding to the gate 30 of the mold. Along the flow direction of the injection molten metal, the minimum distance between the screw post 400 and the gate forming area 13 is greater than the distance between the screw post 400 and the filling end of the base body, and the screw post 400 is located between the filling end and the gate forming area 13; or, the minimum distance between the screw post 400 and the gate forming area 13 is greater than or equal to 20 mm. In this way, since the injection molten metal has a more stable speed and pressure when it is away from the gate forming area 13 or at the filling end, the aluminum sheet flipping is reduced, and flow marks on the outer surface 11 are further avoided.

[0066] It should be noted that the minimum distance between the screw post 400 and the gate forming area 13 refers to the distance between the screw post 400 that is closest to the gate forming area 13 and the gate forming area 13.

[0067] It should be noted that the filling end of the base body refers to the edge of the base, which can reduce the risk of flow marks.

[0068] like Figure 1 , Figure 4 and Figure 9 As shown, the base body has a buffer recess 200, which corresponds to the gate 30 of the mold. Specifically, due to the presence of the buffer recess 200, the liquid entering the injection molding cavity from the injection inlet is buffered by the buffer recess 200, and the buffered injection liquid will flow evenly from the periphery of the injection inlet into the injection molding cavity. The above structure can effectively reduce direct jetting, improve the uniformity of injection molding, and thus effectively ensure the quality of injection molding, solving the technical problem of poor injection molding quality in the prior art.

[0069] In the embodiment, the buffer recess 200 has a buffer notch and a buffer groove bottom, and the groove depth of the buffer recess 200 gradually decreases along the extension direction of the buffer groove bottom to the buffer notch. With such a structure, the liquid entering through the injection inlet can be fully buffered by the buffer recess 200, and the liquid at the buffer groove bottom can be guided to flow into the position of the buffer notch, thereby improving the uniformity of the flow direction of the liquid.

[0070] Specifically, the buffer recess 200 in the embodiment is an arc-shaped groove. With such a structure, the structure is reliable, and the liquid in the buffer recess 200 can be fully buffered.

[0071] Optionally, the buffer recess 200 is located in the middle of the base body, and the screw column 400 is one; or the screw column 400 is multiple, and the multiple screw columns 400 are arranged around the buffer recess 200. In this way, the above-mentioned arrangement ensures that the screw column 400 is as far away from the gate forming area 13 as possible to reduce the aluminum sheet turnover and further avoid the appearance of flow marks on the outer surface 11.

[0072] As shown in Figure 10 The connecting rib 510 includes a first rib segment 511, a second rib segment 512 and a third rib segment 513 connected in sequence, the first rib segment 511 is oppositely arranged with the third rib segment 513, and the first reinforcing rib 520 is arranged on the first rib segment 511 and / or the third rib segment 513. In this way, the above-mentioned arrangement makes the structure of the connecting rib 510 more simple and easy to process and realize.

[0073] In the embodiment, the extension direction of the first rib segment 511 is the S1 direction, the extension direction of the second rib segment 512 is perpendicular to the flow direction S2 of the injection melt, and the included angle between the extension direction of the first rib segment 511 and the flow direction S2 of the injection melt is the same as the included angle between the extension direction of the first rib segment 511 and the flow direction S2 of the injection melt, so that the arrangement of the rib is more easy, and the processing cost of the base is reduced.

[0074] Optionally, the extension direction S4 of the first reinforcing rib 520 and the flow direction S2 of the injection melt form a third preset angle, and the third preset angle is greater than 15°. In this way, the above-mentioned arrangement avoids the extension direction of the first reinforcing rib 520 being parallel to the filling direction of the injection melt as much as possible, thereby reducing the characteristic filling speed gradient change of the parallel flow direction of the injection melt, and further preventing the appearance of flow marks on the outer surface 11 to affect the appearance of the base.

[0075] In the embodiment, the base is made of a spray-free material, and the spray-free material includes a base material and particles distributed in the base material; wherein the base material is a thermoplastic polymer material; and the particles are at least one of metal particles, pearl powder and fibers.

[0076] Alternatively, the metal particles may be aluminum or copper.

[0077] Alternatively, the fiber may be nylon or natural fiber.

[0078] This application also provides a water purifier, including the aforementioned base.

[0079] This application also provides a mold having a cavity for forming the aforementioned base, and the mold further having a gate 30 communicating with the cavity.

[0080] like Figures 5 to 7 As shown, the mold also has a buffer runner 50 and a melt inlet 60. The first end of the buffer runner 50 is connected to the melt inlet 60, and the buffer runner 50 is connected to the end of the gate 30 furthest from the cavity, so that the injection molten metal flows sequentially through the melt inlet 60, the buffer runner 50, and the gate 30 before entering the cavity. The buffer runner 50 is columnar, which makes the gate 30 columnar as well. In this way, the buffer runner 50 acts as a buffer for the plastic material, thereby prolonging the freezing time of the plastic material.

[0081] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0082] The base is an injection-molded product made of a paint-free material. Screw posts are set on the connecting structure, which is mounted on the inner surface via connecting ribs. That is, the screw posts are set on the inner surface in sequence through the connecting structure and connecting ribs, thereby avoiding the screw posts from affecting the smooth flow of the melt on the outer surface and reducing appearance defects such as flow marks, gate marks, and weld lines on the outer surface. This solves the problem of appearance defects that are prone to occur in paint-free injection molded parts.

[0083] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0084] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0085] It should be noted that the terms "first", "second", and the like, used in the description and in the claims of the present application as well as above-mentioned figures are used to distinguish between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of data so designated is not meant to limit a given item described by such data to the same category as other data designated by the same designations, but instead is so designated only for convenience as a means of discriminating between the two series of items that refer to a same data.

[0086] The preferred embodiments of the application described herein are examples of the present application and are not intended to limit the scope of the application. Various modifications and changes can be made thereto by those skilled in the art which freely adapt to the idea and principles of the application, without departing from the spirit and scope thereof, and it is to be understood that such modifications and changes are to be included within the scope of the application as defined by the appended claims.

Claims

1. A base, characterized in that, The base is a spray-free injection molding part, the base comprises: a base body having an outer surface (11) and an inner surface (12): a connecting structure (300) provided on the inner surface (12), the connecting structure (300) has a mounting surface (301) provided away from the inner surface (12); a screw column (400) provided on the mounting surface (301); a connecting rib (510) provided between the connecting structure (300) and the inner surface (12) to connect the connecting structure (300) and the inner surface (12); wherein the connecting rib (510) is arranged at a first preset angle between the extension direction and the flow direction of the injection melt, and the first preset angle is greater than 15°; The outer surface (11) or the inner surface (12) has a gate forming area (13) corresponding to the gate (30) of the mold, along the flow direction of the injection melt, the minimum distance between the screw column (400) and the gate forming area (13) is greater than the distance between the screw column (400) and the filling end of the base body, and the screw column (400) is located between the filling end and the gate forming area (13); or, the minimum distance between the screw column (400) and the gate forming area (13) is greater than or equal to 20mm; The base body has a buffer recess (200) corresponding to the gate (30) of the mold.

2. The base of claim 1, wherein The base further comprises: a matching part (600) provided on the inner surface (12); wherein the matching part (600) is a plurality of, and a plurality of matching parts (600) are arranged at intervals along the inner circumferential surface of the base body.

3. The base of claim 2, wherein, The matching part (600) has a mounting recess (601) and a stop surface (602), the stop surface (602) forms at least part of the mounting recess (601), and the stop surface (602) has a preset distance from the outer edge of the base body, and the preset distance is less than or equal to 50mm.

4. The base of claim 3, wherein The matching part (600) comprises: two first connecting plates (603) arranged opposite to each other; a second connecting plate (604) connected with both of the first connecting plates (603) to surround the mounting recess (601), the surface of the second connecting plate (604) facing the mounting recess (601) is the stop surface (602); wherein the second connecting plate (604) is arranged at a second preset angle with each first connecting plate (603).

5. The base of claim 4, wherein, The second connecting plate (604) has an opening (6041) communicating with the mounting recess (601), and the opening (6041) faces away from the inner surface (12).

6. The base of claim 1, wherein The base further comprises: A first reinforcing rib (520) connected with the outer circumferential surface of the connecting structure (300) and the inner surface (12); wherein the first reinforcing rib (520) is a plurality of, a plurality of first reinforcing ribs (520) are arranged at intervals around the circumference of the connecting structure (300); the extension direction of the first reinforcing rib (520) and the flow direction of the injection melt form a third preset angle, and the third preset angle is greater than 15°.

7. The base of claim 1, wherein The base further comprises: A second reinforcing rib (530) connected with the outer circumferential surface of the screw column (400) and the mounting surface (301); the second reinforcing rib (530) is a plurality of, a plurality of second reinforcing ribs (530) are arranged at intervals around the circumference of the screw column (400).

8. The base of claim 1, wherein, The buffer recess (200) is located in the middle of the base body, and the screw column (400) is one; or, the screw column (400) is a plurality of, a plurality of screw columns (400) are arranged around the buffer recess (200).

9. A water purification machine characterized by, The base of any one of claims 1 to 8.

10. A mold characterized in that, The mold has a cavity for forming the base of any one of claims 1 to 8, and further has a gate (30) communicating with the cavity.

11. The mold of claim 10, wherein, The mold further has a buffer flow channel (50) and a melt inlet (60), the first end of the buffer flow channel (50) communicates with the melt inlet (60), and the buffer flow channel (50) communicates with the end of the gate (30) away from the cavity, so that the injection melt flows into the cavity through the melt inlet (60), the buffer flow channel (50) and the gate (30) in sequence. The mold has a cavity for forming the base of any one of claims 1 to 8, and further has a gate (30) communicating with the cavity.

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