Rotary spraying arm and cleaning equipment

Abstract

The utility model relates to the field of cleaning equipment, in particular to a rotary spraying arm and cleaning equipment. Comprising a shell and an adjusting device; a liquid outlet hole is formed in the shell, and an opening block is arranged at the liquid outlet end of the liquid outlet hole; the adjusting device is installed in the liquid outlet hole and tends to move towards the liquid inlet end of the liquid outlet hole. The adjusting device is provided with a liquid spraying gap, and the opening block is located in the liquid spraying gap so as to expand the liquid spraying gap. Under the impact action of liquid, the adjusting device moves towards the liquid outlet end to be away from the opening block, and therefore the liquid spraying gap is reduced. According to the rotary spraying arm, the adjusting device is arranged on the liquid outlet hole, the size of the liquid spraying gap is adjusted through the water pressure in the shell, and when the water pressure is too small or water spraying is stopped, the liquid spraying gap is expanded to reduce the spraying range; and when the water pressure is high, the liquid spraying gap is reduced to enlarge the spraying range. And the spraying range of the rotary spraying arm is adjustable, so that cleaning dead angles are avoided.

Description

Technical Field

[0001] The present application relates to the field of cleaning equipment, and particularly to a rotating spray arm and a cleaning equipment. Background Art

[0002] In existing dishwashers, the centrifugal force generated by the rotation of the spray arm can control the opening of the water spray port switching structure, and the water spray port switching structure is provided with a spring structure. When the rotation speed of the spray arm is too low or the rotation stops, the water spray port switching structure can be controlled to close. As the rotation speed of the washing pump of the dishwasher increases, the rotation speed of the spray arm also increases. However, the spraying range of the spray arm is fixed, and there are cleaning dead angles. Summary of the Utility Model

[0003] The purpose of the present application is to provide a rotating spray arm and a cleaning equipment, which can adjust the spraying range and avoid the generation of cleaning dead angles.

[0004] The present application provides a rotating spray arm, including a housing and an adjusting device;

[0005] The housing is provided with a liquid outlet hole, and a spreading block is arranged at the liquid outlet end of the liquid outlet hole;

[0006] The adjusting device is installed in the liquid outlet hole and has a tendency to move towards the liquid inlet end of the liquid outlet hole;

[0007] The adjusting device is provided with a liquid spraying gap, and the spreading block is located in the liquid spraying gap to expand the liquid spraying gap; under the impact of the liquid, the adjusting device moves towards the liquid outlet end to be away from the spreading block, thereby reducing the liquid spraying gap.

[0008] In the above technical solution, further, along the liquid outlet direction, the flow area of the liquid spraying gap is gradually reduced;

[0009] The spreading block is adapted to the shape of the liquid spraying gap; and the spreading block is in interference fit with the liquid spraying gap.

[0010] In the above technical solution, further, the liquid outlet hole is provided with a limiting table surface to limit the distance of the movement of the adjusting device towards the liquid outlet end.

[0011] In the above technical solution, further, the adjusting device includes an adjusting component and a reset elastic member;

[0012] The adjusting component is provided with the liquid spraying gap, and the adjusting component is installed in the liquid outlet hole;

[0013] The reset elastic member is installed between the adjusting component and the liquid outlet hole.

[0014] In the above technical solution, further, the adjustment assembly includes an adjustment member and a mounting member, and the adjustment member is detachably connected to the mounting member;

[0015] The regulating member is located at the liquid outlet end, and the regulating member is provided with the liquid spraying gap;

[0016] The mounting member is located at the liquid inlet end, and the mounting member is provided with a flow hole, and the flow hole is communicated with the liquid spraying gap.

[0017] In the above technical solution, further, the adjusting member includes an adjusting portion and a first connecting portion;

[0018] The regulating part comprises a first regulating block and a second regulating block, and the liquid spraying gap is arranged between the first regulating block and the second regulating block;

[0019] The first adjusting block and the second adjusting block are connected to the first connecting portion, and the first connecting portion is detachably connected to the mounting member.

[0020] In the above technical solution, further, the mounting member includes a limiting platform and a second connecting portion;

[0021] The flow hole passes through the limiting platform and the second connecting portion, and the resetting elastic member abuts between the limiting platform and the limiting table surface;

[0022] The first connection portion is threadedly connected to the second connection portion, and the resetting elastic member is sleeved on the circumference of the first connection portion and the second connection portion.

[0023] In the above technical solution, further, the adjusting part is a rubber part, and the first connecting part is a plastic part.

[0024] In the above technical solution, further, the liquid outlet hole includes a first receiving portion and a second receiving portion that are connected;

[0025] One end of the first accommodating portion away from the second accommodating portion is the liquid outlet end, and the expansion block is located in the first accommodating portion;

[0026] One end of the second accommodating portion away from the first accommodating portion is the liquid inlet end; the limiting table is formed between the first accommodating portion and the second accommodating portion, and one end of the reset elastic member away from the adjustment component abuts against the limiting table.

[0027] The present application also provides a cleaning device, comprising the rotating spray arm described in the above solution.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] The rotating spray arm provided by the present application, by setting an adjustment device on the liquid outlet of the shell, uses the water pressure in the shell to adjust the size of the liquid spray gap. When the water pressure is too low or the water spraying stops, the liquid spray gap is expanded to reduce the spraying range; when the water pressure is high, the liquid spray gap becomes smaller to increase the spraying range. The spraying range of the rotating spray arm is adjustable, avoiding the generation of cleaning dead corners.

[0030] The present application also provides a cleaning device, including the rotating spray arm described in the above solution. Based on the above analysis, it can be seen that the cleaning device also has the above beneficial effects, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A schematic diagram of the structure of the rotating spray arm provided in this application;

[0033] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0034] Figure 3 A first structural schematic diagram of the regulating device provided in this application;

[0035] Figure 4 A second structural schematic diagram of the regulating device provided in this application;

[0036] Figure 5 This is a second structural schematic diagram of the liquid outlet provided in this application.

[0037] In the figure: 101-shell; 102-upper half shell; 103-lower half shell; 104-liquid outlet; 105-opening block; 106-liquid spray gap; 107-limiting table; 108-adjusting component; 109-resetting elastic member; 110-adjusting member; 111-mounting member; 112-adjusting part; 113-first connecting part; 114-first adjusting block; 115-second adjusting block; 116-limiting platform; 117-second connecting part; 118-circulation hole; 119-first accommodating part; 120-second accommodating part. DETAILED DESCRIPTION

[0038] The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0041] Embodiment 1

[0042] See Figures 1 to 5 As shown, the rotating spray arm provided by the present application includes a housing 101 and an adjusting device. As Figure 1 shown, the housing 101 includes an upper half shell 102 and a lower half shell 103. The upper half shell 102 and the lower half shell 103 are snap-connected to enclose a cavity for containing liquid. Specifically, the upper half shell 102 and the lower half shell 103 can be welded by hot plate welding. At least one of the upper half shell 102 and the lower half shell 103 is provided with a liquid outlet hole 104 for installing the adjusting device. Figure 1 The liquid outlet hole 104 in the upper half shell 102 of the rotating spray arm is shown in

[0043] Further, a spreading block 105 is provided at the liquid outlet end of the liquid outlet hole 104; the adjusting device is installed in the liquid outlet hole 104 and has a tendency to move towards the liquid inlet end of the liquid outlet hole 104; a liquid spraying gap 106 is provided in the adjusting device, and the spreading block 105 is located in the liquid spraying gap 106 to expand the liquid spraying gap 106; under the impact of liquid (generally clean water), the adjusting device moves towards the liquid outlet end to move away from the spreading block 105, thereby reducing the liquid spraying gap 106.

[0044] Specifically, when the water pressure is too low or the water spraying stops, since the adjusting device has a tendency to move towards the liquid inlet end of the liquid outlet hole 104 so that the adjusting device can be placed inside the liquid outlet hole 104, the expanding block 105 on the liquid outlet hole 104 is clamped in the liquid spraying gap 106 formed by the adjusting device to expand the liquid spraying gap 106. At this time, the flow-through area of the liquid spraying gap 106 is relatively large, resulting in a relatively small pressure of the liquid sprayed from the liquid spraying gap 106, and the coverage range of the liquid sprayed from the liquid spraying gap 106 is relatively small. The water pressure inside the outer shell 101 of the spraying arm will change with the rotation speed of the washing heating pump. When the water pressure inside the outer shell 101 increases to the preset pressure, it can impact the adjusting device to move towards the outside of the shell, so that the liquid spraying gap 106 moves away from the expanding block 105, and then the expanding effect of the expanding block 105 on the liquid spraying gap 106 is reduced, and the liquid spraying gap 106 can restore to a smaller gap. At this time, the flow-through area of the liquid spraying gap 106 is relatively small, resulting in a relatively large pressure of the liquid sprayed from the liquid spraying gap 106, and the coverage range of the liquid sprayed from the liquid spraying gap 106 is relatively large.

[0045] For the rotating spraying arm provided by the present application, by arranging an adjusting device on the liquid outlet hole 104 of the outer shell 101 and using the water pressure inside the outer shell 101 to adjust the size of the liquid spraying gap 106, when the water pressure is too low or the water spraying stops, the liquid spraying gap 106 is expanded to reduce the spraying range; when the water pressure is high, the liquid spraying gap 106 becomes smaller to increase the spraying range. The spraying range of the rotating spraying arm is adjustable, avoiding the generation of cleaning dead corners.

[0046] In an optional solution of this embodiment, along the liquid outlet direction, the flow-through area of the liquid spraying gap 106 is gradually reduced; the shape of the expanding block 105 is adapted to that of the liquid spraying gap 106; and the expanding block 105 is in interference fit with the liquid spraying gap 106.

[0047] In this embodiment, as Figure 3 and Figure 4 shown, the cross-sectional view of the adjusting device is shown in the figure. The cross-sectional contour of the liquid spraying gap 106 presents a trapezoidal structure with a smaller upper part and a larger lower part. When the liquid flows through the liquid spraying gap 106, the gradually reduced flow-through area can achieve the effect of pressurizing the liquid, so that the liquid sprayed from the liquid spraying gap 106 can be sprayed around to achieve a certain flushing range. Two opposite expanding blocks 105 are arranged on the liquid outlet hole 104, and the two expanding blocks 105 are respectively placed at both ends of the liquid spraying gap 106 to expand the liquid spraying gap 106. The shape of the expanding block 105 is also correspondingly set as a trapezoidal block with a smaller upper part and a larger lower part, and the size of the trapezoidal block is slightly larger than that of the liquid spraying gap 106 to achieve the effect of expanding the liquid spraying gap 106 without changing the gradually reduced structural form of the liquid spraying gap 106.

[0048] It should be noted that the cross-sectional profile of the liquid spraying gap 106 is not limited to the trapezoidal structure shown in the figure. For example, the profiles of the two wall surfaces of the liquid spraying gap 106 can also be set as arcs, as long as the liquid spraying gap 106 can present a tapered structural form, and the shape of the spreading block 105 is correspondingly set.

[0049] In an alternative solution of this embodiment, the liquid outlet hole 104 is provided with a limiting table surface 107 to limit the distance of the adjusting device moving towards the liquid outlet end, which can prevent the adjusting device from detaching from the liquid outlet hole 104 due to excessive water pressure impact force.

[0050] In an alternative solution of this embodiment, the adjusting device includes an adjusting component 108 and a reset elastic member 109; the adjusting component 108 is provided with a liquid spraying gap 106, and the adjusting component 108 is installed in the liquid outlet hole 104; the reset elastic member 109 is specifically a spring and is installed between the adjusting component 108 and the liquid outlet hole 104.

[0051] In this embodiment, after the adjusting component 108 is pushed outward from the liquid outlet hole 104 by a sufficient large water pressure, if it is necessary to reduce the spraying range, the water pressure can be reduced. When the water pressure is less than the elastic force of the reset elastic member 109 acting on the adjusting component 108, the adjusting component 108 can move inward to reset towards the liquid outlet hole 104, so that the spreading block 105 is placed back into the liquid spraying gap 106 to enlarge the liquid spraying gap 106.

[0052] In an alternative solution of this embodiment, the adjusting component 108 includes an adjusting part 110 and a mounting part 111, and the adjusting part 110 is detachably connected to the mounting part 111; the adjusting part 110 is located at the liquid outlet end, and the adjusting part 110 is provided with a liquid spraying gap 106; the mounting part 111 is located at the liquid inlet end, and the mounting part 111 is provided with a circulation hole 118, and the circulation hole 118 is communicated with the liquid spraying gap 106.

[0053] In this embodiment, since the liquid outlet hole 104 is provided with a limiting table surface 107, in order to facilitate the installation of the adjusting component 108, the adjusting component 108 is set as two parts, namely the adjusting part 110 and the mounting part 111, so as to facilitate the assembly of the two into one body. As Figure 1 and Figure 2 shown, the assembly sequence of the adjusting component 108 is as follows: the adjusting part 110 is placed into the liquid outlet hole 104 from the outside of the upper half shell 102, the reset elastic member 109 and the mounting part 111 are placed into the liquid outlet hole 104 from the inside of the upper half shell 102, then the adjusting part 110 and the mounting part 111 are connected, and finally the upper half shell 102 and the lower half shell 103 are welded by hot plate welding.

[0054] In an alternative solution of this embodiment, the adjusting member 110 includes an adjusting portion 112 and a first connecting portion 113. Among them, the adjusting portion 112 includes a first adjusting block 114 and a second adjusting block 115, and a liquid spraying gap 106 is provided between the first adjusting block 114 and the second adjusting block 115. As Figure 4 shown, the first adjusting block 114 and the second adjusting block 115 are symmetrically arranged, and their circumferential profiles are arc-shaped and fit the hole wall of the liquid outlet hole 104. The cross-sections of the first adjusting block 114 and the second adjusting block 115 are trapezoidal with a larger upper part and a smaller lower part, so that a liquid spraying gap 106 with a smaller upper part and a larger lower part is formed between the first adjusting block 114 and the second adjusting block 115.

[0055] The first adjusting block 114 and the second adjusting block 115 are connected to the first connecting portion 113, and the first connecting portion 113 is detachably connected to the mounting member 111. Optionally, the adjusting portion 112 is a rubber member, which can be specifically a TPE rubber member, and the first connecting portion 113 is a plastic member. Under the extrusion of the expanding block 105, the rubber member generates a larger deformation amount and has a better adjusting effect. The first connecting portion 113 is a plastic member. Compared with the rubber material, the plastic member has relatively higher hardness and strength and is not easily deformed, which can ensure reliable connection with the mounting member 111.

[0056] In an alternative solution of this embodiment, the mounting member 111 includes a limiting platform 116 and a second connecting portion 117; the through hole 118 penetrates through the limiting platform 116 and the second connecting portion 117, and one end of the reset elastic member 109 abuts against the limiting table surface 107 of the liquid outlet hole 104, and one end of the reset elastic member 109 abuts against the limiting platform 116, which can push the adjusting assembly 108 towards the inner direction of the liquid outlet hole 104. Both the first connecting portion 113 and the second connecting portion 117 are cylindrical, and one of them is provided with an internal thread and the other is provided with an external thread, so that the first connecting portion 113 and the second connecting portion 117 can be threadedly connected. The reset elastic member 109 is sleeved on the circumferences of the first connecting portion 113 and the second connecting portion 117, and the installation and positioning of the reset elastic member 109 can also be realized.

[0057] Embodiment Two

[0058] The rotating spray arm in this Embodiment Two is an improvement based on the above embodiment, and the technical content disclosed in the above embodiment will not be described repeatedly, and the content disclosed in the above embodiment also belongs to the content disclosed in this Embodiment Two.

[0059] In an alternative solution of this embodiment, the liquid outlet hole 104 includes a first accommodating portion 119 and a second accommodating portion 120 that are communicated with each other; one end of the first accommodating portion 119 far from the second accommodating portion 120 is the liquid outlet end, and the expanding block 105 is located in the first accommodating portion 119; one end of the second accommodating portion 120 far from the first accommodating portion 119 is the liquid inlet end; a limiting table surface 107 is formed between the first accommodating portion 119 and the second accommodating portion 120.

[0060] In this embodiment, if Figure 5 As shown, the first accommodation portion 119 is a truncated cone-shaped through hole, and the expansion block 105 is located on the hole wall of the first accommodation portion 119. The second accommodation portion 120 is a cylindrical through hole, and the axes of the first accommodation portion 119 and the second accommodation portion 120 are colinear. The small diameter end of the first accommodation portion 119 is connected to the second accommodation portion 120, and the cross-sectional size of the small diameter end of the first accommodation portion 119 is smaller than the cross-sectional size of the second accommodation portion 120, so that a limiting table 107 is formed between the two, thereby realizing the installation and positioning of the reset elastic member 109.

[0061] Embodiment 3

[0062] Embodiment 3 of the present application provides a cleaning device, including the rotating spray arm of any of the above embodiments, and thus has all the beneficial technical effects of the rotating spray arm of any of the above embodiments, which will not be repeated here.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In addition, a person skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present application and forming different embodiments.

Claims

1. A rotating spray arm, characterized in that, It includes a housing (101) and an adjusting device; The housing (101) is provided with a liquid outlet hole (104), and a spreading block (105) is arranged at the liquid outlet end of the liquid outlet hole (104); The adjusting device is installed in the liquid outlet hole (104) and has a tendency to move towards the liquid inlet end of the liquid outlet hole (104); The adjusting device is provided with a liquid spraying gap (106), and the spreading block (105) is located in the liquid spraying gap (106) to enlarge the liquid spraying gap (106); under the impact of the liquid, the adjusting device moves towards the liquid outlet end to move away from the spreading block (105), thereby reducing the liquid spraying gap (106).

2. The rotating spray arm according to claim 1, characterized in that, Along the liquid outlet direction, the flow-through area of the liquid spraying gap (106) is gradually reduced; The spreading block (105) is adapted to the shape of the liquid spraying gap (106); and the spreading block (105) is in interference fit with the liquid spraying gap (106).

3. The rotating spray arm according to claim 1, characterized in that, The liquid outlet hole (104) is provided with a limiting table surface (107) to limit the distance of the adjusting device moving towards the liquid outlet end.

4. The rotating spray arm according to claim 3, characterized in that, The adjusting device includes an adjusting component (108) and a reset elastic member (109); The adjusting component (108) is provided with the liquid spraying gap (106), and the adjusting component (108) is installed in the liquid outlet hole (104); The reset elastic member (109) is installed between the adjusting component (108) and the liquid outlet hole (104).

5. The rotating spray arm according to claim 4, wherein The adjusting component (108) includes an adjusting member (110) and a mounting member (111), and the adjusting member (110) is detachably connected to the mounting member (111); The adjusting member (110) is located at the liquid outlet end, and the adjusting member (110) is provided with the liquid spraying gap (106); The mounting member (111) is located at the liquid inlet end, the mounting member (111) is provided with a flow-through hole (118), and the flow-through hole (118) is communicated with the liquid spraying gap (106).

6. The rotating spray arm according to claim 5, characterized in that, The adjusting member (110) includes an adjusting part (112) and a first connecting part (113); The adjusting part (112) includes a first adjusting block (114) and a second adjusting block (115), and the liquid spraying gap (106) is arranged between the first adjusting block (114) and the second adjusting block (115); The first adjusting block (114) and the second adjusting block (115) are connected to the first connecting part (113), and the first connecting part (113) is detachably connected to the mounting member (111).

7. The rotating spray arm according to claim 6, characterized in that, The mounting member (111) includes a limiting platform (116) and a second connecting part (117); The flow-through hole (118) penetrates through the limiting platform (116) and the second connecting part (117), and the reset elastic member (109) abuts between the limiting platform (116) and the limiting table surface (107); The first connecting part (113) is threadedly connected to the second connecting part (117), and the reset elastic member (109) is sleeved on the circumferences of the first connecting part (113) and the second connecting part (117).

8. The rotating spray arm according to claim 6, wherein, The adjusting portion (112) is a rubber part, and the first connecting portion (113) is a plastic part.

9. The rotating spray arm according to claim 4, wherein, The liquid outlet (104) comprises a first accommodating portion (119) and a second accommodating portion (120) which are connected to each other; An end of the first accommodating portion (119) away from the second accommodating portion (120) is the liquid outlet end, and the expansion block (105) is located in the first accommodating portion (119); The end of the second accommodating portion (120) away from the first accommodating portion (119) is the liquid inlet end; the limiting surface (107) is formed between the first accommodating portion (119) and the second accommodating portion (120), and the end of the reset elastic member (109) away from the adjustment component (108) abuts against the limiting surface (107).

10. A cleaning device, characterized in that, The invention comprises a rotating spray arm as claimed in any one of claims 1 to 9.

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