A spray arm mechanism and a dishwasher with a trolley

Abstract

The utility model relates to the technical field of tableware washing equipment, specifically a spray arm mechanism and a dishwasher with a trolley thereof, the spray arm mechanism comprising a first spray arm, the first spray arm being fixedly connected to a connecting member and being connected to a first water inlet mechanism through the connecting member, the connecting member being rotatably connected to the first water inlet mechanism, one or more spray outlets being arranged on the first spray arm, the spray direction of the spray outlet forming an acute angle with the setting direction of the rotation center axis of the connecting member, and the spray direction of the spray outlet being arranged along the radial direction of the first spray arm. When the water outlet of the first spray arm sprays on tableware, it will be subjected to a reaction force, and since the spray direction of the first spray arm spray outlet is arranged obliquely, the reaction force can push the first spray arm to produce a rotational motion around the first water inlet mechanism, and compared with a fixed spray arm structure, the rotating spray arm can rotate continuously within a cleaning cycle, and can cover and clean every position of the tableware, thereby greatly improving the cleaning effect.

Description

Technical Field

[0001] The utility model relates to the technical field of tableware washing equipment, in particular to a spray arm mechanism and a dishwasher with a cart. Background Art

[0002] Dishwashers often use spray arms to spray water to clean and rinse dishes. In the prior art, most spray arms are fixed inside the dishwasher, and their spray angles are also fixed, resulting in relatively low cleaning effect and efficiency.

[0003] Furthermore, most dishwashers on the market are stationary devices placed in the dishwasher room. Staff collect tableware from tables in the lobby or private rooms and place it in a dishwashing cart. This cart is then transported to the dishwasher room, where it is removed from the cart for pre-washing before being placed in the dishwasher. This process requires multiple handling and placement of tableware, consuming both labor and time, and the cost of the dishwashing cart is another expense. For restaurant and hotel operators, these expenses can be avoided. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a spray arm mechanism and a dishwasher with a trolley.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A spray arm mechanism includes a first spray arm, which is fixedly connected to a connecting member and communicates with a first water inlet mechanism through the connecting member. The connecting member is rotatably connected to the first water inlet mechanism. One or more spray outlets are provided on the first spray arm. The direction in which the spray outlets spray forms an acute angle with the setting direction of the central axis of rotation of the connecting member, and the direction in which the spray outlets spray is set along the radial direction of the first spray arm.

[0007] In the above structure, when the water from the spray outlet of the first spray arm is sprayed onto the tableware, it will be subjected to a reaction force. Since the spray direction of the spray outlet of the first spray arm is inclined, the reaction force can push the first spray arm to rotate around the first water inlet mechanism. Compared with the fixed spray arm structure, the rotating spray arm can rotate continuously within a cleaning cycle, covering and cleaning every position of the tableware, thereby greatly improving the cleaning effect.

[0008] Specifically, the first water inlet mechanism includes a main wash seat, which is hollow inside. One end of the main wash seat is rotatably connected to a connector, and the inner cavity of the connector is in communication with the main wash seat. The other end of the main wash seat is connected to the water inlet. The connector is provided with a first spray arm connection end, and is connected to the first spray arm via the first spray arm connection end. The connector can provide a water source for the first spray arm and ensure that the first spray arm rotates relative to the main wash seat.

[0009] An intermediate tube is disposed in the middle of the inner cavity of the connector and is fixedly mounted on the inner top wall of the connector. A second spray arm connection end is disposed on the outside of the intermediate tube and has a through-hole communicating with the second spray arm connection end. The second spray arm connection end extends to the outside of the connector and is connected to a second spray arm. The structure of the second spray arm is identical to that of the first spray arm. The intermediate tube is rotatably mounted on the top of a second water inlet pipe, which is located in the middle of the inner cavity of the main wash basin. One or more water outlets are formed on the sidewalls of the second water inlet pipe, which can be connected to the through-hole. This structure enables the spray arm mechanism to spray two streams of clean water.

[0010] The top of the intermediate pipe is rotatably plugged with a limiting bolt, and the top of the second pipe is threadedly connected to the limiting bolt, thereby ensuring the stability of the intermediate pipe's rotation relative to the second water inlet pipe.

[0011] There are two first spray arm connection ends, which are evenly distributed around the central axis of rotation of the connecting piece, and two first spray arms are correspondingly provided; there are two second spray arm connection ends, which are evenly distributed around the central axis of rotation of the connecting piece, and two second spray arms are correspondingly provided.

[0012] A dishwasher with a trolley comprises a machine body, a cleaning chamber is defined in the machine body, and at least one set of the above-mentioned spray arm mechanisms is arranged in the cleaning chamber; and further comprises a trolley, on which is mounted at least one layer of a support frame, the support frame being used for placing tableware, the trolley being capable of driving the support frame into the cleaning chamber, and the support frame being arranged corresponding to the spray arm mechanisms.

[0013] The machine body is hinged with a door body, which can close the cleaning chamber. When the trolley drives the support frame into the cleaning chamber, the door body can also close the cleaning chamber.

[0014] Each group of the spray arm mechanisms includes two spray arm mechanisms, which are symmetrically arranged up and down. When the support frame enters the cleaning chamber, the upper and lower spray arm mechanisms are respectively located at the upper and lower parts of the support frame, thereby performing comprehensive spray cleaning on the tableware.

[0015] The cleaning chamber is provided with a partition that can separate the cleaning chamber into two or more independent chambers. Each independent chamber is provided with two spray arm mechanisms arranged symmetrically in an upper and lower direction. The partition can isolate the sewage in each compartment, so that the sewage is retained at the side and does not fall onto the dishes in the lower layer.

[0016] The interior of the machine body is provided with an illuminating lamp, and the door body is provided with a transparent window, so as to facilitate intuitive observation of the cleaning progress.

[0017] The beneficial effects achieved by the utility model are:

[0018] When the spray arm mechanism of the present invention is working, water from the spray outlet is sprayed onto the tableware. With the help of the reaction force it receives, the spray arm can rotate. Compared with the fixed spray arm structure, the rotating spray arm can clean the tableware in all directions, thereby improving the cleaning effect. Moreover, under the same cleaning range and the same cleaning effect, the present invention can reduce the number of spray arms, simplify the overall structure and reduce costs.

[0019] The dishwasher with a trolley of the present invention not only has a good cleaning effect, but also its trolley can drive the supporting frame to move out of the cleaning chamber. The trolley can move freely and can go to the restaurant to directly collect tableware and place the tableware on the supporting frame. The collected tableware can be directly put into the dishwasher without the need for further transportation and transfer, which saves time and manpower and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the spray arm mechanism of the utility model;

[0022] Figure 2 This is a schematic diagram of the right side structure of the spray arm mechanism of the utility model;

[0023] Figure 3 yes Figure 2 AA section view;

[0024] Figure 4 This is a partial structural diagram of the spray arm mechanism of the utility model;

[0025] Figure 5 This is a rear structural diagram of the spray arm mechanism of the utility model;

[0026] Figure 6 yes Figure 5 BB cross-sectional view;

[0027] Figure 7 1 is a structural diagram of the second water inlet pipe;

[0028] Figure 8 It is a structural diagram of the connector (looking up);

[0029] Figure 9 This is a schematic diagram of the internal structure of the utility model dishwasher with a cart;

[0030] Figure 10 It is a schematic diagram of the structure of the cart;

[0031] Figure 11It is a three-dimensional structural schematic diagram of the utility model of a dishwasher with a trolley.

[0032] In the figure: 1. First spray arm; 2. Second spray arm; 3. Spray outlet; 4. Connecting piece; 5. Main wash seat; 6. Bushing; 7. First water inlet pipe; 8. Connecting end of first spray arm; 9. Connecting end of second spray arm; 10. Limit bolt; 11. Second water inlet pipe; 12. Intermediate pipe; 13. Water outlet; 14. Through port; 15. Machine body; 16. Partition; 17. Support frame; 18. Trolley; 19. Door body. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0034] Example:

[0035] like Figures 1-8 As shown, a spray arm mechanism includes a first spray arm 1 and a second spray arm 2. The structure of the second spray arm 2 is the same as that of the first spray arm 1. The first spray arm 1 is fixedly connected to a connecting member 4 and communicates with a first water inlet mechanism through the connecting member 4. The connecting member 4 is rotatably connected to the first water inlet mechanism. The first spray arm 1 is provided with a plurality of spray outlets 3 arranged in sequence. Figure 4 As shown, the direction of the spray port 3 forms an acute angle with the direction of the central axis of rotation of the connecting member 4, and the spray port 3 is arranged along the radial direction of the first spray arm 1. The spray port 3 can be directly opened on the spray arm, or a nozzle can be installed on the spray arm, and the nozzle opening serves as the spray port 3. Both of the above structural forms are conventional options.

[0036] In the above structure, when the spray outlet 3 of the first spray arm 1 sprays pressurized water onto the tableware, it will be subjected to a reaction force. Since the spraying direction of the spray outlet 3 of the first spray arm 1 is inclined, the reaction force can serve as a driving force to drive the first spray arm 1 to rotate around the first water inlet mechanism.

[0037] Specifically, the first water inlet mechanism includes a main wash seat 5, which is a hollow, pipe-like structure. One end of the main wash seat 5 is rotatably connected to a connector 4, and the inner cavity of the connector 4 is in communication with the main wash seat 5. The other end of the main wash seat 5 is threadedly connected to a first water inlet pipe 7, which provides water. The connector 4 is provided with a first spray arm connection end 8, which is connected to the first spray arm 1 via the first spray arm connection end 8. The connector 4 is a shell-like structure, which is used to distribute water transmitted from the main wash seat 5 to the first spray arm 1 through the first spray arm connection end 8. The connector 4 can provide a water source for the first spray arm 1 and ensure that the first spray arm 1 can rotate relative to the main wash seat 5.

[0038] An intermediate tube 12 is provided in the middle of the inner cavity of the connector 4. The intermediate tube 12 is fixedly provided on the inner top wall of the connector 4. A second spray arm connection end 9 is provided on the outside of the intermediate tube 12, and a through-port 14 is provided in the intermediate tube 12 to communicate with the second spray arm connection end 9. The second spray arm connection end 9 passes through the housing of the connector 4 and extends to the outside, and is connected to the second spray arm 2. The connector 4 can connect two liquids. The intermediate tube 12 is rotatably sleeved on the top of the second water inlet pipe 11. The second water inlet pipe 11 is located in the middle of the inner cavity of the main wash seat 5 and the first water inlet pipe 7, and the water inlet end of the second water inlet pipe 11 passes through the first water inlet pipe 7. Four water outlets 13 are evenly arranged in a circular array on the upper side wall of the second water inlet pipe 11. The water outlets 13 can be connected to the through-port 14 to realize the second water inlet pipe 11 to supply water to the second spray arm 2. The above structure enables the spray arm mechanism to spray two clean waters, and the two waters are independent of each other.

[0039] The top of the intermediate pipe 12 is rotatably plugged with a limit bolt 10 , and the top of the second pipe is threadedly connected to the limit bolt 10 , thereby ensuring the stability of the intermediate pipe 12 in rotating relative to the second water inlet pipe 11 .

[0040] Two first spray arm connection ends 8 are provided, evenly distributed around the central axis of rotation of the connector 4, and are correspondingly provided with two first spray arms 1. Two second spray arm connection ends 9 are provided, evenly distributed around the central axis of rotation of the connector 4, and are correspondingly provided with two second spray arms 2. The openings 14 of the two second spray arm connection ends 9 can be connected to the two water outlets 13 at the same time.

[0041] A shaft sleeve 6 is provided between the connecting member 4 and the main wash seat 5, and between the intermediate pipe 12 and the second water inlet pipe 11. The shaft sleeve 6 is made of polytetrafluoroethylene material, thereby ensuring that the connecting member 4 rotates smoothly relative to the main wash seat 5 and the second water inlet pipe 11.

[0042] like Figures 9-11 As shown, a dishwasher with a cart includes a body 15, a cleaning chamber is defined in the body 15, and three groups of the above-mentioned spray arm mechanisms are provided in the cleaning chamber. The first spray arm 1 of the spray arm mechanism serves as a cleaning spray arm to spray cleaning water, and the second spray arm 2 serves as a rinsing spray arm to spray high-temperature rinsing water. Regardless of whether the water is being cleaned or rinsed, the spray arm mechanism can rotate during the water spraying process under the push of the reaction force, thereby achieving a better cleaning effect.

[0043] During the specific operation, cleaning is performed first. The cleaning water enters the main wash seat 5 through the first water inlet pipe 7, then passes through the cavity of the connector 4, enters the first spray arm 1 through the two first spray arm connection ends 8, and is finally sprayed out at an angle from the spray outlet 3; after cleaning is completed, high-temperature rinsing is performed. The high-temperature water enters the second water inlet pipe 11 and is sent out from the water outlet 13 of the second water inlet pipe 11. When the through port 14 of the intermediate pipe 12 is connected to one of the water outlets 13, the high-temperature water in the second water inlet pipe 11 enters the second spray arm 2 through the second spray arm connection end 9 for rinsing.

[0044] The dishwasher with a trolley also includes a trolley 18, which is a small cart structure with rollers at the bottom. A three-layer support frame 17 is installed on the trolley 18, and the support frame 17 is used to place tableware. The trolley 18 can drive the support frame 17 into the cleaning chamber, and the support frame 17 is arranged corresponding to the spray arm mechanism.

[0045] The housing 15 is hingedly connected to a door 19 that seals the cleaning chamber. When the cart 18 drives the support frame 17 into the cleaning chamber, the door 19 also seals the cleaning chamber. A storage space is provided at the bottom of the housing 15 to accommodate the lower bracket and rollers of the cart 18.

[0046] Each group of the spray arm mechanisms includes two spray arm mechanisms, which are symmetrically arranged up and down. When the support frame 17 enters the cleaning chamber, the upper and lower spray arm mechanisms are respectively located at the upper and lower parts of the support frame 17, thereby performing comprehensive spray cleaning on the tableware.

[0047] The cleaning chamber is provided with a partition 16, which can separate the cleaning chamber into three independent chambers, each of which is provided with two spray arm mechanisms arranged symmetrically up and down. The partition 16 can isolate the sewage in each compartment, so that the sewage is retained at the side and does not fall onto the dishes in the lower layer.

[0048] The body 15 is provided with an illumination lamp inside, and the door 19 is provided with a transparent window, so as to facilitate intuitive observation of the cleaning progress.

Claims

1. A spray arm mechanism, characterized in that: The invention comprises a first spray arm (1), wherein the first spray arm (1) is fixedly connected to a connecting member (4) and is connected to a first water inlet mechanism via the connecting member (4), the connecting member (4) being rotatably connected to the first water inlet mechanism, and the first spray arm (1) is provided with one or more spray outlets (3), the spraying direction of the spray outlet (3) forms an acute angle with the setting direction of the rotation center axis of the connecting member (4), and the spraying direction of the spray outlet (3) is set along the radial direction of the first spray arm (1).

2. The spray arm mechanism according to claim 1, characterized in that: The first water inlet mechanism comprises a main wash seat (5), the main wash seat (5) is hollow inside, one end of the main wash seat (5) is rotatably connected to the connecting piece (4), and the inner cavity of the connecting piece (4) is communicated with the main wash seat (5), the other end of the main wash seat (5) is connected to the water inlet, and a first spray arm connecting end (8) is provided on the connecting piece (4), and is connected to the first spray arm (1) via the first spray arm connecting end (8).

3. The spray arm mechanism according to claim 2, characterized in that: An intermediate tube (12) is arranged in the middle of the inner cavity of the connecting piece (4), the intermediate tube (12) is fixedly arranged on the inner top wall of the connecting piece (4), a second spray arm connecting end (9) is arranged outside the intermediate tube (12) and a through-hole (14) is provided to communicate with the second spray arm connecting end (9), the second spray arm connecting end (9) passes through the outside of the connecting piece (4) and is connected to a second spray arm (2), the structure of the second spray arm (2) is the same as that of the first spray arm (1), the intermediate tube (12) is rotatably sleeved on the top of a second water inlet pipe (11), the second water inlet pipe (11) is located in the middle of the inner cavity of the main washing seat (5), and one or more water outlets (13) are provided on the side wall of the second water inlet pipe (11), and the water outlets (13) can be connected to the through-hole (14).

4. The spray arm mechanism according to claim 3, characterized in that: The top of the intermediate pipe (12) is rotatably plugged with a limiting bolt (10), and the top of the second pipeline is threadedly connected to the limiting bolt (10).

5. The spray arm mechanism according to claim 3, characterized in that: The first spray arm connection ends (8) are provided with two, the two first spray arm connection ends (8) are evenly distributed around the rotation center axis of the connection member (4), and two first spray arms (1) are provided accordingly; the second spray arm connection ends (9) are provided with two, the two second spray arm connection ends (9) are evenly distributed around the rotation center axis of the connection member (4), and two second spray arms (2) are provided accordingly.

6. A dishwasher with a trolley, characterized in that: The machine body (15) comprises a cleaning chamber provided in the machine body (15), wherein at least one set of spray arm mechanisms according to any one of claims 1 to 5 is arranged in the cleaning chamber; It also includes a trolley (18) on which at least one layer of support frame (17) is installed. The trolley (18) can drive the support frame (17) into the cleaning chamber, and the support frame (17) is arranged correspondingly to the spray arm mechanism.

7. The dishwasher with a trolley according to claim 6, characterized in that: The machine body (15) is hingedly connected with a door body (19), and the door body (19) can close the cleaning chamber.

8. The dishwasher with a trolley according to claim 7, characterized in that: Each group of the spray arm mechanisms comprises two spray arm mechanisms, which are symmetrically arranged up and down. When the support frame (17) enters the cleaning chamber, the upper and lower spray arm mechanisms are respectively located at the upper part and the lower part of the support frame (17).

9. The dishwasher with a trolley according to claim 8, characterized in that: A partition (16) is arranged in the cleaning chamber, and the partition (16) can separate the cleaning chamber into two or more independent chambers, and each independent chamber is provided with two spray arm mechanisms which are symmetrically arranged up and down.

10. The dishwasher with a trolley according to claim 7, characterized in that: The machine body (15) is provided with an illumination lamp inside, and the door body (19) is provided with a transparent window.

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