Spraying structure for cleaning machine and cleaning machine

Abstract

The utility model discloses a spraying structure for a cleaning machine, which comprises a water supply pipe (1) provided with a vertical section extending along the vertical direction; the spraying arm (2) is communicated with the vertical section of the water supply pipe (1) through a connecting pipe (21); the device is characterized in that the vertical section of the water supply pipe (1) comprises a fixed pipe (11), and the top end of the fixed pipe (11) is provided with a sleeve (111) extending in the vertical direction; the bottom end of the movable pipe (12) can be installed in the sleeve (111) in an up-down sliding mode and is in sealing fit with the sleeve (111), and the spraying arm (2) is fixed relative to the movable pipe (12). The utility model further discloses a cleaning machine with the spraying structure. Compared with the prior art, the spraying structure for the cleaning machine has the advantages that the spraying arm can move up and down conveniently, and the cleaning effect is not affected.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment technology, specifically to a spray structure for a cleaning machine and the cleaning machine itself. Background Technology

[0002] The washing chamber of existing dishwashers often includes dish racks located above and below the spray arms. In order to accommodate the tableware placed on the lower dish rack, the upper dish rack can usually be moved up and down to adjust the distance between the upper and lower dish racks, thereby rinsing non-standard sized tableware containers.

[0003] The upper dish rack and the spray arm are usually fixed vertically. The spray arm is connected to the water supply pipe in the washing chamber. So, as the upper dish rack moves up and down, the spray arm will also move up and down. Therefore, the connection structure between the spray arm and the water supply pipe needs to be able to allow the spray arm to move up and down relative to the water supply pipe, but the two are always in fluid communication.

[0004] For example, the Chinese patent CN201810974413.8, entitled "A Spraying Device and a Dishwasher Using the Device", discloses a spraying device and a dishwasher using the device. The device includes a water inlet pipe connected to a water source and a spraying arm connected to the water inlet pipe. The spraying device also includes an adjusting cover that is sealed to the water inlet end of the spraying arm. The adjusting cover can be connected to the water inlet pipe at different positions in the vertical direction, so that the height of the spraying arm connected to the water inlet pipe at different positions of the adjusting cover is adjustable. The adjusting cover is provided with a one-way flow water outlet at different positions in the vertical direction. The water inlet pipe extends into any water outlet. The water flows through the adjusting cover into the spraying arm, so that the idle water outlet is closed under water pressure.

[0005] In the above scheme, multiple water inlets are set on the adjusting cover. When the spray arm is raised and lowered, the adjusting cover is raised and lowered accordingly. The water inlet pipe is connected to the water inlets at different positions. As can be seen from the attached figure, the insertion part of the water inlet pipe and the water inlet are inserted into each other. If the position of the spray arm is slightly deviated, the insertion part of the water inlet pipe will not be able to be inserted into the water inlet, which will result in the spray arm and the water inlet pipe not being able to achieve fluid communication. Moreover, the water inlet pipe and the adjusting cover need to be inserted each time the height of the spray arm is adjusted, which is also quite troublesome. Utility Model Content

[0006] The first technical problem to be solved by this utility model is to provide a spray structure for a cleaning machine that allows the spray arm to move up and down easily without affecting the cleaning effect, in light of the current state of the technology.

[0007] The second technical problem to be solved by this utility model is to provide a cleaning machine that uses the above-mentioned spray structure.

[0008] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a spray structure for a cleaning machine, including...

[0009] A water supply pipe, having a vertical section extending in a vertical direction; and

[0010] The spray arm is connected to the vertical section of the water supply pipe via a connecting pipe;

[0011] Its characteristic is that: the vertical section of the water supply pipe includes...

[0012] A fixed tube, with a sleeve extending vertically at its top; and

[0013] The movable tube is installed inside the sleeve at its bottom end, which can slide up and down and is sealed to the sleeve. The spray arm is fixed relative to the movable tube.

[0014] In order to limit the movement of the movable tube after it has been raised and lowered to the correct position, a limiting component is also included for positioning the relative positions of the movable tube and the fixed tube.

[0015] To limit the movement of the movable tube at different heights, the limiting component includes:

[0016] Two symmetrically arranged limiting seats are provided laterally. Each limiting seat is slidably mounted on the bottom end of the movable tube, and a limiting block protrudes from the surface of each limiting seat facing away from the other limiting seat. At least two vertically spaced limiting grooves corresponding to the limiting blocks are provided on the inner wall of the sleeve.

[0017] An elastic element acts between the two limiting seats to ensure that the two limiting seats always tend to move away from each other.

[0018] When the limiting seat moves with the movable tube to the height of any corresponding limiting groove, the limiting block of the limiting seat is inserted into the limiting groove.

[0019] To facilitate the installation of the elastic element, each of the limiting seats has a mounting post protruding on the side facing the other limiting seat, which corresponds to the elastic element. The elastic element is a compression spring, and the two ends of the compression spring are respectively sleeved on the outer periphery of the mounting post of the two limiting seats and abut against the opposite surfaces of the two limiting seats.

[0020] To ensure smooth water flow in the water supply pipe, each of the aforementioned limiting seats has multiple spaced flow holes arranged vertically.

[0021] To facilitate the movement of the limiting block in and out of the limiting groove during the lifting and lowering process, the end of the limiting block is hemispherical.

[0022] To achieve fluid communication between the spray arm and the movable pipe, the connecting pipe extends from back to front along the direction of water flow. The inlet end of the connecting pipe is connected to the side of the movable pipe, and the outlet end of the connecting pipe is connected to the top of the spray arm.

[0023] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a cleaning machine, characterized in that: it applies the above-mentioned spray structure.

[0024] To enable the automatic raising and lowering of the movable tube, the system also includes a bowl rack that can be raised and lowered vertically, and a drive unit that can drive the movable tube to rise and fall synchronously with the bowl rack.

[0025] In order to drive the movable tube to rise and fall synchronously with the bowl rack, the driving component is a magnetic component and is installed on the bowl rack. The movable tube has a magnetic attraction part that can be attracted by the magnetic component.

[0026] Compared with the prior art, the advantages of this utility model are as follows: the vertical section of the water supply pipe is composed of a fixed pipe and a movable pipe. A sleeve extending vertically is set at the top of the fixed pipe. The bottom end of the movable pipe is slidably installed in the sleeve, and the spray arm is fixed relative to the movable pipe. In this way, when adjusting the height of the dish rack, it is only necessary to raise and lower the movable pipe to cooperate with it. The spray arm can be moved up and down conveniently without affecting the cleaning effect. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the spray structure in an embodiment of the cleaning machine of this utility model when the dish rack is lowered to its limit position;

[0028] Figure 2 for Figure 1 A longitudinal sectional view (viewed from left to right);

[0029] Figure 3 for Figure 1 A longitudinal sectional view (viewed from front to back);

[0030] Figure 4 for Figure 3 Longitudinal sectional view (viewed from front to back) when the bowl rack is raised to its limit position;

[0031] Figure 5 This is a three-dimensional structural diagram of the limiting component in an embodiment of the cleaning machine of this utility model. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0034] like Figures 1 to 5 The image shows a preferred embodiment of the cleaning machine with a spray structure according to this utility model. The spray structure includes a water supply pipe 1, a spray arm 2, and a limiting component 3.

[0035] The water supply pipe 1 includes a first transverse section extending from front to back along the water flow direction, a vertical section extending upward from the rear end of the first transverse section, and a second transverse section extending forward from the top end of the vertical section. In this embodiment, the vertical section of the water supply pipe 1 includes a fixed pipe 11 and a movable pipe 12. Specifically, the top end of the fixed pipe 11 has a sleeve 111 extending in the vertical direction, and three limiting grooves 1111 arranged at intervals in the vertical direction are provided on the inner walls of the left and right sides of the sleeve 111; the bottom end of the movable pipe 12 is slidably installed in the sleeve 111 and is sealed with the sleeve 111.

[0036] The spray arm 2 is connected to the movable pipe 12 via a connecting pipe 21. Specifically, the connecting pipe 21 extends from back to front along the direction of water flow. The inlet end of the connecting pipe 21 is connected to the side of the movable pipe 12, and the outlet end of the connecting pipe 21 is connected to the top of the spray arm 2.

[0037] The limiting component 3 is used to position the relative positions of the movable tube 12 and the fixed tube 11. In this embodiment, the limiting component 3 includes a limiting seat 31 and an elastic element 32.

[0038] Specifically, there are two limiting seats 31, which are symmetrically arranged in the left-right direction. Each limiting seat 31 can be slidably installed at the bottom end of the movable tube 12. On the surface of each limiting seat 31 facing away from the other limiting seat 31, there is a limiting block 311 corresponding to the limiting groove 1111. The end of the limiting block 311 is hemispherical. On the surface of each limiting seat 31 facing the other limiting seat 31, there are two mounting posts 312 arranged at intervals in the front-back direction. Each limiting seat 31 has a plurality of flow holes 313 arranged in a matrix at intervals in the vertical direction.

[0039] There are two elastic elements 32, corresponding to the mounting posts 312 mentioned above. In this embodiment, each elastic element 32 is a compression spring. The two ends of the compression spring are respectively sleeved on the outer periphery of the corresponding mounting posts 312 of the two limiting seats 31 and abut against the opposite surfaces of the two limiting seats 31, so that the two limiting seats 31 always tend to move away from each other.

[0040] When the limiting seat 31 moves with the movable tube 12 to the height of any corresponding limiting groove 1111, the limiting block 311 of the limiting seat 31 is inserted into the limiting groove 1111.

[0041] In addition, the washing machine also includes a dish rack 4 that can be raised and lowered vertically, and a drive unit 5 that can drive the movable tube 12 to rise and fall synchronously with the dish rack 4. In this embodiment, the drive unit 5 is a magnetic component and is installed on the rear side of the dish rack 4. In addition, the movable tube 12 is made of metal and is magnetized to form a magnetic suction part 121 that can be attracted by the magnetic component.

[0042] The working principle of this embodiment is as follows:

[0043] (1) As Figure 3 As shown, when the bowl rack 4 descends to its limit position, the limit blocks 311 of each limit seat 31 are inserted into the corresponding limit grooves 1111 located at the lowest position;

[0044] (2) When the user moves the bowl rack 4 upward, under the magnetic force of the drive component 5, the movable tube 12 drives the spray arm 2 and the limiting seat 31 to move upward synchronously with the bowl rack 4. During the upward movement, due to the squeezing action of the inner wall of the sleeve 111, the two limiting seats 31 approach each other and compress the elastic element 32 until the limiting block 311 moves to the limiting groove 111 of the corresponding height. Under the elastic force of the elastic element, the two limiting seats 31 move away from each other so that the limiting block 311 is inserted into the corresponding limiting groove 111. Figure 4 As shown, when the bowl rack 4 rises to the limit position, the limit blocks 311 of each limit seat 31 are inserted into the corresponding limit grooves 1111 located at the highest position;

[0045] During the lifting and lowering of the dish rack 4, the spray arm 2 will also lift and lower synchronously. In addition, the spray arm 2 and the water supply pipe 1 are always connected.

[0046] The advantages of the above scheme are:

[0047] (1) The spray structure of this application can be matched with the lifting bowl rack without the need for a third part, saving space for component arrangement;

[0048] (2) It saves costs, has a simple structure, and is highly feasible in terms of process;

[0049] (3) It does not affect the pipe sealing and hydraulic performance, effectively meets the cleaning requirements, and does not affect the cleaning efficiency.

Claims

1. A spray structure for a cleaning machine, comprising: Water supply pipe (1), having a vertical section extending in a vertical direction; and The spray arm (2) is connected to the vertical section of the water supply pipe (1) via a connecting pipe (21); Its features are: The vertical section of the water supply pipe (1) includes: A fixed tube (11) having a sleeve (111) extending vertically at its top end; and The movable tube (12) is installed in the sleeve (111) with its bottom end able to slide up and down and is sealed to the sleeve (111). The spray arm (2) is fixed relative to the movable tube (12).

2. The spray structure according to claim 1, characterized in that: It also includes a limiting component (3) for positioning the relative positions of the active tube (12) and the fixed tube (11).

3. The spray structure according to claim 2, characterized in that: The limiting component (3) includes: Two symmetrically arranged limiting seats (31) are provided, each limiting seat (31) being laterally slidably mounted on the bottom end of the movable tube (12), and each limiting seat (31) has a limiting block (311) protruding on the surface of the side facing away from the other limiting seat (31). At least two limiting grooves (1111) are provided on the inner wall of the sleeve (111) and are arranged vertically at intervals, corresponding to the limiting blocks (311). An elastic element (32) acts between the two limiting seats (31) to make the two limiting seats (31) always tend to move away from each other; When the limiting seat (31) moves with the movable tube (12) to the height of any corresponding limiting groove (1111), the limiting block (311) of the limiting seat (31) is inserted into the limiting groove (1111).

4. The spray structure according to claim 3, characterized in that: Each of the limiting seats (31) has a mounting post (312) protruding on the side facing the other limiting seat (31) and corresponding to the elastic element (32). The elastic element (32) is a compression spring, and the two ends of the compression spring are respectively sleeved on the outer periphery of the mounting post (312) of the two limiting seats (31) and abut against the opposite surfaces of the two limiting seats (31).

5. The spray structure according to claim 3, characterized in that: Each of the aforementioned limiting seats (31) has multiple flow holes (313) arranged at intervals along the vertical direction.

6. The spray structure according to claim 3, characterized in that: The end of the limiting block (311) is hemispherical.

7. The spray structure according to any one of claims 1 to 6, characterized in that: The connecting pipe (21) extends from back to front along the direction of water flow. The inlet end of the connecting pipe (21) is connected to the side of the movable pipe (12), and the outlet end of the connecting pipe (21) is connected to the top of the spray arm (2).

8. A cleaning machine, characterized in that: The application has the spray structure described in any one of claims 1 to 7.

9. The cleaning machine according to claim 8, characterized in that: It also includes a bowl rack (4) that can be raised and lowered in a vertical direction, and a drive unit (5) that can drive the movable tube (12) to rise and fall synchronously with the bowl rack (4).

10. The cleaning machine according to claim 9, characterized in that: The driving component (5) is a magnetic component and is installed on the bowl rack (4). The movable tube (12) has a magnetic suction part (121) that can be attracted by the magnetic component.

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