A spray arm connection structure and cleaning equipment having the same

Abstract

The present invention relates to a spray arm connection structure and a cleaning device having the same, wherein the spray arm is connected to a water inlet pipe, the spray arm is provided with a water inlet end, the water inlet pipe is provided with a water outlet end, and further comprises: a first ceramic seal provided at the water inlet end; and a second ceramic seal provided at the water outlet end; the first ceramic seal and the second ceramic seal abut against each other in the axial direction of the water inlet end and the water outlet end. In the above manner, the present invention has the advantage of good sealing effect.

Description

[Technical field]

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a spray arm connection structure and a cleaning equipment having the same. [Background technology]

[0002] A dishwasher is a cleaning device that automatically cleans tableware such as bowls, chopsticks, plates, and dishes. As people's living standards improve, dishwashers are used by more and more families. They can reduce the labor intensity of users, improve work efficiency, enhance cleanliness and hygiene, and meet the user's comfortable life experience. The dishwasher has a cleaning chamber, in which a spray arm is provided, and the spray arm is connected to the water inlet pipe in the cleaning chamber.

[0003] In the prior art, the spray arm and the water inlet pipe are connected with a gap. During the washing process, the connection between the spray arm and the water inlet pipe leaks a lot and the sealing effect is poor, which causes a large flow loss of the washing pump and low washing efficiency. Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. [Summary of the invention]

[0004] The object of the present invention is to provide a spray arm connection structure and a cleaning device having the same, which has the advantage of good sealing effect.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A spray arm connection structure, the spray arm is connected to a water inlet pipe, the spray arm is provided with a water inlet end, the water inlet pipe is provided with a water outlet end, and also includes: a first ceramic seal, provided at the water inlet end; and a second ceramic seal, provided at the water outlet end; the first ceramic seal and the second ceramic seal abut against each other in the axial direction of the water inlet end and the water outlet end.

[0007] In one embodiment, a connecting piece is provided on the outer peripheral surface of the water inlet end, and the spray arm is connected to the water inlet pipe via the connecting piece; the connecting piece and the spray arm can rotate relative to each other.

[0008] In one embodiment, the inner ring of the connecting member is provided with a first clamping portion, and the outer peripheral surface of the water inlet end is provided with a second clamping portion matching with the first clamping portion; the connecting member and the spray arm are clamped and matched through the first clamping portion and the second clamping portion.

[0009] In one embodiment, a third clamping portion is provided on the outer peripheral surface of the connecting piece, and a fourth clamping portion cooperating with the third clamping portion is provided at the end of the water inlet pipe close to the spray arm; the connecting piece and the water inlet pipe are clamped together through the third clamping portion and the fourth clamping portion.

[0010] In one embodiment, after the spray arm is connected to the water inlet pipe through the connecting piece, the second clamping portion and the fourth clamping portion surround and form a receiving cavity, and the first ceramic seal and the second ceramic seal are stacked in the receiving cavity.

[0011] In one embodiment, a first sealing ring is provided between the first ceramic sealing member and the second clamping portion, and a second sealing ring is provided between the second ceramic sealing member and the fourth clamping portion.

[0012] In one embodiment, the end surface of the first ceramic seal close to the second clamping portion is provided with a first groove for accommodating the first sealing ring, and the end surface of the second ceramic seal close to the fourth clamping portion is provided with a second groove for accommodating the second sealing ring.

[0013] In one embodiment, the first ceramic seal is clamped on the outer circumference of the water inlet end, the outer circumference of the water inlet end is also provided with a limit block, and the inner ring of the first ceramic seal is provided with a limit groove matching with the limit block.

[0014] In one embodiment, the first ceramic seal and the second ceramic seal are arranged around the outer circumference of the water inlet end and the water outlet end along the circumferential direction of the water inlet end and the water inlet pipe.

[0015] To solve the above technical problems, another solution proposed by the present invention is:

[0016] A cleaning device comprises: the spray arm connection structure as described above.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The spray arm connection structure and the cleaning equipment having the same provided by the present invention can effectively prevent water from leaking from the connection between the spray arm and the water inlet pipe by stacking the first ceramic seal and the second ceramic seal at the connection between the spray arm and the water inlet pipe, and has the advantages of simple structure and good sealing effect.

Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the structure between the spray arm and the water inlet pipe in the present invention.

[0020] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure.

[0021] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0022] Figure 4 yes Figure 1 Schematic diagram of the decomposition structure.

[0023] Figure 5 yes Figure 4 Schematic diagram of the exploded structure between the spray arms and connectors in the figure.

[0024] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of area B in the middle.

[0025] Figure 7 yes Figure 3 Schematic diagram of the enlarged structure of the C area in the middle.

[0026] Figure 8 It is a schematic diagram of the structure of the first ceramic seal in the present invention when viewed from above.

[0027] Fig. 9 It is a schematic diagram of the structure of the second ceramic seal in the present invention when viewed from above.

[0028] Fig.10 It is a schematic diagram of the first ceramic seal and the connecting member in the present invention after being arranged on the spray arm. [Specific implementation method]

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention rather than all structures are shown in the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] The terms "including" and "having" and any variations thereof in the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] See also Figures 1 to 4 As shown, the present invention provides a spray arm 100 connection structure, which is used for sealing the spray arm 100 and the water inlet pipe 200. The spray arm 100 is provided with a water inlet end 110, and the water inlet pipe 200 is provided with a water outlet end 210. The spray arm 100 and the water inlet pipe 200 are connected through the water inlet end 110 and the water outlet end 210. The spray arm 100 connection structure further includes: a first ceramic seal 300, which is provided at the water inlet end 110; and a second ceramic seal 400, which is provided at the water outlet end 210; wherein the first ceramic seal 300 and the second ceramic seal 400 abut against each other in the axial direction of the water inlet end 110 and the water outlet end 210.

[0033] In the above manner, after the spray arm 100 and the water inlet pipe 200 in the present invention are connected, the first ceramic seal 300 and the second ceramic seal 400 are stacked at the connection between the spray arm 100 and the water inlet pipe 200, which can effectively prevent water from leaking from the connection between the spray arm 100 and the water inlet pipe 200, and has the advantages of simple structure and good sealing effect.

[0034] The water inlet end 110 is formed in the middle of the spray arm 100. The water inlet end 110 is a short cylinder with open ends and a hollow interior, so as to be connected to the spray arm 100 for water inlet. The water outlet end 210 of the water inlet pipe 200 is in the shape of a circular hole for water outlet. The first ceramic seal 300 and the second ceramic seal 400 are arranged around the outer periphery of the water inlet end 110 and the water outlet end 210 along the circumferential direction of the water inlet end 110 and the water inlet pipe 200. In this way, water can be effectively prevented from leaking from the connection between the spray arm 100 and the water inlet pipe 200, and has the advantage of good sealing effect. The "water" mentioned above can be tap water or tap water with detergent added. It can be understood that the water in the spray arm 100 and the water inlet pipe 200 includes but is not limited to the above two types, and can also be other types of liquids or gases.

[0035] In order to realize that the spray arm 100 can rotate relative to the water inlet pipe 200 after being connected to the water inlet pipe 200, a connector 500 is provided between the spray arm 100 and the water inlet pipe 200. The connector 500 is used to connect the spray arm 100 and the water inlet pipe 200. The connector 500 and the spray arm 100 can rotate relative to each other, but the connector 500 and the water inlet pipe 200 cannot rotate relative to each other. The outer peripheral surface of the water inlet end 110 is provided with the connector 500. Specifically, the connector 500 is annular, and the inner circle of the connector 500 is provided with a first clamping portion 510. The outer peripheral surface of the water inlet end 110 is provided with a second clamping portion 120 matched with the first clamping portion 510. The connector 500 and the spray arm 100 are clamped and matched by the first clamping portion 510 and the second clamping portion 120. The outer circumferential surface of the connector 500 is also provided with a third clamping portion 520, and the end of the water inlet pipe 200 close to the spray arm 100 is provided with a fourth clamping portion 220 that matches the third clamping portion 520, and the connector 500 and the water inlet pipe are clamped and matched through the third clamping portion 520 and the fourth clamping portion 220. After the spray arm 100 is connected to the water inlet pipe 200 through the connector 500, the second clamping portion 120 and the fourth clamping portion 220 are surrounded to form a receiving cavity, and the first ceramic seal 300 and the second ceramic seal 400 are stacked in the receiving cavity. As a result, the first ceramic seal 300 and the second ceramic seal 400 are not directly exposed to the outside, which effectively prolongs the service life of the first ceramic seal 300 and the second ceramic seal 400.

[0036] Specifically, see Figure 3 , Figure 6 and Figure 7As shown, the first clamping portion 510 is a convex ring formed on the inner ring of the connecting member 500 in a full ring shape, and the convex ring is in a ring shape and is concentrically distributed with the connecting member 500. The second clamping portion 120 includes a first annular wall 121, a first clamping block 122 provided on the first annular wall 121 and cooperating with the first clamping portion 510, and a top plate 123 for connecting the first annular wall 121 and the water inlet end 110, wherein the first annular wall 121 is coaxially arranged with the water inlet end 110 and surrounded by the outer periphery of the water inlet end 110, the first clamping block 122 is formed on the outer peripheral surface of the first annular wall 121, and the top plate 123 is provided on the top of the first annular wall 121. The above-mentioned top refers to the top, and correspondingly, the bottom refers to the bottom, and the above-mentioned top and bottom are consistent with the up and down directions in the accompanying drawings. A circular annular accommodating space is formed between the first annular wall 121, the top plate 123 and the water inlet end 110, and the first ceramic seal 300 is accommodated in the circular annular accommodating space. The first clamping block 122 is arranged as follows. In one scheme, the first clamping blocks 122 are evenly spaced and distributed on the outer peripheral surface of the first annular wall 121, and the number of the first clamping blocks 122 is preferably 3 to 5; if the number of the first clamping blocks 122 is too large, it is not conducive to production and processing, and if the number of the first clamping blocks 122 is too small, the stability and reliability of the connection are not ideal. In another scheme, the first clamping block 122 is in the shape of a whole ring. In the present invention, the projection part of the first clamping block 122 and the first clamping portion 510 in the axial direction of the water inlet end 110 or the water inlet pipe 200 overlaps, so that when the first clamping block 122 and the first clamping portion 510 are clamped, the positioning in the axial direction of the water inlet end 110 or the water inlet pipe 200 can be achieved. A guiding slope M is provided on the first clamping block 122 to facilitate the clamping of the first clamping block 122 with the first clamping portion 510. During the process of installing the connecting piece 500 to the spray arm 100, due to the existence of the above-mentioned guiding slope M, the first clamping block 122 and the first clamping portion 510 can be clamped together by only pressing the connecting piece 500 along the axial direction of the water inlet end 110 or the water inlet pipe 200.

[0037] Specifically, see Figures 3 to 5As shown, the third clamping part 520 is a plurality of screw-on blocks formed on the outer ring of the connector 500, and the screw-on blocks are spaced apart; the fourth clamping part 220 includes a second annular wall 221, a screw-on groove 222 provided on the inner wall of the second annular wall 221 for screwing with the third clamping part 520, and a bottom plate 223 for connecting the second annular wall 221 and the water inlet pipe 200, wherein the second annular wall 221 is coaxially arranged with the water outlet end 210 and is arranged around the outer periphery of the water outlet end 210, the bottom plate 223 is arranged at the bottom of the second annular wall 221, and ribs are provided on the inner wall of the second annular wall 221, and the ribs are used to surround and form the above-mentioned screw-on groove 222. The third clamping part 520 and the screw-on groove 222 on the fourth clamping part 220 form a screw-on fit, which has the advantages of convenient installation and stable and reliable connection. In the present invention, the bottom plate 223 and the annular accommodation space together enclose a receiving cavity for accommodating the first ceramic seal 300 and the second ceramic seal 400. A handle is also provided on the outer ring of the connector 500 for the convenience of the operator to hold, so as to facilitate installation and removal.

[0038] In order to further improve the sealing performance between the spray arm 100 and the water inlet pipe 200, a first sealing ring 600 is provided between the first ceramic sealing member 300 and the second clamping portion 120, and a second sealing ring 700 is provided between the second ceramic sealing member 400 and the fourth clamping portion 220. Figure 3 , Figure 8 and Fig. 9 As shown, in order to prevent the first sealing ring 600 and the second sealing ring 700 from being displaced during the rotation of the spray arm 100, the end surface of the first ceramic seal 300 close to the second clamping portion 120 is provided with a first groove 310 for accommodating the first sealing ring 600, and the end surface of the second ceramic seal 400 close to the fourth clamping portion 220 is provided with a second groove 410 for accommodating the second sealing ring 700. The end surface of the first ceramic seal 300 close to the second clamping portion 120 is the top end surface of the first ceramic seal 300, and the end surface of the second ceramic seal 400 close to the fourth clamping portion 220 is the bottom end surface of the second ceramic seal 400. It can be seen that the first sealing ring 600 is sandwiched between the top end surface of the first ceramic seal 300 and the top plate 123, and the second sealing ring 700 is sandwiched between the bottom end surface of the second ceramic seal 400 and the bottom plate 223.

[0039] See also Figure 6 and Fig.10As shown, there are multiple ways of connecting the first ceramic seal 300 and the water inlet end 110. Considering the convenience of connection and the stability and reliability after connection, the first ceramic seal 300 is clamped on the outer peripheral surface of the water inlet end 110, wherein the inner ring of the first ceramic seal 300 is provided with a convex edge, and the outer peripheral surface of the water inlet end 110 is provided with a second clamping block 112 clamped with the above-mentioned convex edge. In order to enable the first ceramic seal 300 to rotate with the spray arm 100, a limit block 111 is also provided on the outer peripheral surface of the water inlet end 110, and a limit groove 320 matching with the limit block 111 is provided on the convex edge of the inner ring of the first ceramic seal 300. When the spray arm 100 rotates, under the action of the limit block 111 and the limit groove 320, the first ceramic seal 300 can rotate with the spray arm 100, thereby, the first ceramic seal 300 and the second ceramic seal 400 can rotate relative to each other, which has the advantage of good sealing effect. The above-mentioned limit block 111 and limit groove 320 also have the effect of installation and positioning, and have the advantages of simple structure, convenient installation, stable and reliable connection. Similarly, the second ceramic seal 400 is also arranged on the water inlet pipe 200 in a snap-fit ​​manner. Specifically, a snap 2231 for snapping with the second ceramic seal 400 is provided on the bottom plate 223, and the snap 2231 is distributed along the edge of the water outlet end 210.

[0040] It can be understood that the connection structure of the spray arm 100 in the present invention can be applied to different usage scenarios, which will be explained with examples below.

[0041] The connection structure of the spray arm 100 in the present invention can be applied to cleaning equipment. In one embodiment, the cleaning equipment is a dishwasher, which has a cleaning chamber for cleaning dishes, and the cleaning chamber is provided with the connection structure of the spray arm 100 as described above. The present invention respectively sets a first ceramic seal 300 and a second ceramic seal 400 at the water inlet end 110 of the spray arm 100 and the water outlet end 210 of the water inlet pipe 200. When the spray arm 100 is working, the spray arm 100 drives the first ceramic seal 300 to rotate relative to the second ceramic seal 400, which has the advantage of good sealing effect and effectively improves the washing efficiency of the dishwasher.

[0042] It can be understood that the above specific applications are merely examples of the connection structure of the spray arm 100 in the present invention, and those skilled in the art can make adaptive adjustments according to actual conditions, which will not be elaborated here.

[0043] To sum up, the present invention can effectively prevent water from leaking from the connection between the spray arm 100 and the water inlet pipe 200 by stacking the first ceramic seal 300 and the second ceramic seal 400 at the connection between the spray arm 100 and the water inlet pipe 200, and has the advantages of simple structure and good sealing effect; further, a first sealing ring 600 is provided between the first ceramic seal 300 and the second clamping part 120, and a second sealing ring 700 is provided between the second ceramic seal 400 and the fourth clamping part 220, which can further improve the sealing performance between the spray arm 100 and the water inlet pipe 200; in the present invention, the second clamping part 120 and the fourth clamping part 220 can be surrounded to form a receiving cavity, and the first ceramic seal 300 and the second ceramic seal 400 are stacked in the receiving cavity, which can effectively extend the service life of the first ceramic seal 300 and the second ceramic seal 400.

[0044] The above is only a specific implementation of the present invention, and any other improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A spray arm (100) connection structure, wherein the spray arm (100) is connected to a water inlet pipe (200), the spray arm (100) is provided with a water inlet end (110), and the water inlet pipe (200) is provided with a water outlet end (210), characterized in that: Also includes: A first ceramic sealing member (300) is disposed around the outer periphery of the water inlet end (110) along the circumferential direction of the water inlet end (110); and A second ceramic sealing member (400) is disposed around the outer periphery of the water outlet end (210) along the circumferential direction of the water outlet end (210); The first ceramic seal (300) and the second ceramic seal (400) are stacked at the connection between the spray arm (100) and the water inlet pipe (200), and are abutted in the axial direction of the water inlet end (110) and the water outlet end (210).

2. The spray arm (100) connection structure according to claim 1, characterized in that: A connecting piece (500) is provided on the outer peripheral surface of the water inlet end (110), and the spray arm (100) is connected to the water inlet pipe (200) via the connecting piece (500); The connecting piece (500) and the spray arm (100) can rotate relative to each other.

3. The spray arm (100) connection structure according to claim 2, characterized in that: The inner ring of the connecting piece (500) is provided with a first clamping portion (510), and the outer peripheral surface of the water inlet end (110) is provided with a second clamping portion (120) matching with the first clamping portion (510); The connecting piece (500) and the spray arm (100) are engaged with each other through the first engaging portion (510) and the second engaging portion (120).

4. The spray arm (100) connection structure according to claim 3, characterized in that: The outer peripheral surface of the connecting piece (500) is provided with a third clamping portion (520), and the end of the water inlet pipe (200) close to the spray arm (100) is provided with a fourth clamping portion (220) that matches the third clamping portion (520); The connecting piece (500) and the water inlet pipe are engaged with each other through the third engaging portion (520) and the fourth engaging portion (220).

5. The spray arm (100) connection structure according to claim 4, characterized in that: After the spray arm (100) is connected to the water inlet pipe (200) via the connecting piece (500), the second clamping portion (120) and the fourth clamping portion (220) surround and form a receiving cavity, and the first ceramic sealing component (300) and the second ceramic sealing component (400) are stacked in the receiving cavity.

6. The spray arm (100) connection structure according to claim 5, characterized in that: A first sealing ring (600) is provided between the first ceramic sealing component (300) and the second clamping portion (120), and a second sealing ring (700) is provided between the second ceramic sealing component (400) and the fourth clamping portion (220).

7. The spray arm (100) connection structure according to claim 6, characterized in that: The end surface of the first ceramic seal (300) close to the second clamping portion (120) is provided with a first groove (310) for accommodating the first sealing ring (600), and the end surface of the second ceramic seal (400) close to the fourth clamping portion (220) is provided with a second groove (410) for accommodating the second sealing ring (700).

8. The spray arm (100) connection structure according to claim 1, characterized in that: The first ceramic sealing component (300) is clamped on the outer peripheral surface of the water inlet end (110), the outer peripheral surface of the water inlet end (110) is also provided with a limit block (111), and the inner ring of the first ceramic sealing component (300) is provided with a limit groove (320) that matches the limit block (111).

9. A cleaning device, characterized in that: include: According to any one of claims 1 to 8 The spray arm (100) connection structure described above.

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