Spraying device and dish washing machine

Abstract

The utility model belongs to the technical field of dish-washing machines and discloses a spraying device and a dish-washing machine. A spraying arm in the spraying device is arranged on a rotating sleeve, in the process that the rotating sleeve is assembled on a spraying base, the outer wall of the rotating sleeve extrudes the moving end of a sliding block assembly to return to a sliding cavity, and when the rotating sleeve is assembled in place, at least part of the moving end is inserted into an annular clamping groove of the rotating sleeve, so that the rotating sleeve is limited to move in the axial direction of a flow channel; according to the spraying device, the rotating sleeve is arranged on the spraying base, synchronous rotation of the rotating sleeve and the spraying arm is not affected, the rotating sleeve is directly pulled out of the spraying base with force during disassembly, so that the spraying arm is more convenient to replace and maintain, a user can easily disassemble and assemble the rotating sleeve, the spraying arm is replaced or maintained, and the maintenance time and cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a spray device and a dishwasher. Background Art

[0002] Dishwashers are common kitchen appliances in modern households, used to automatically clean tableware, plates and other kitchen utensils. Among them, the spray arm is an important part of the dishwasher, which is responsible for spraying detergent and cleaning water onto the surface of the tableware to achieve a cleaning effect.

[0003] The spray arm in the existing dishwasher is installed on the spray seat with a complex structure, and the disassembly and installation process is relatively difficult, which increases the maintenance cost and time and brings inconvenience to the user.

[0004] Therefore, there is an urgent need for a spray device and a dishwasher to solve the problems in the prior art. Utility Model Content

[0005] The utility model aims to provide a spray device, which makes the replacement and maintenance of the spray arm more convenient. The user can easily disassemble and assemble the spray arm, thereby replacing or repairing the spray arm, saving maintenance time and cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Spraying device, comprising:

[0008] A spray seat, wherein a flow channel and a sliding cavity are provided in the spray seat, and the opening direction of the sliding cavity is perpendicular to the axial direction of the flow channel;

[0009] A spray arm, wherein an annular groove is provided on the spray arm;

[0010] A slider assembly, wherein the movable end of the slider assembly is at least partially slidably disposed in the sliding cavity and elastically connected to the spray seat away from the flow channel, at least part of the spray arm is inserted in the flow channel, and at least part of the movable end can be inserted in the annular groove.

[0011] Optionally, the spray arm includes a spray arm body and a rotating sleeve, the rotating sleeve is rotatably disposed in the flow channel, the spray arm body and the rotating sleeve are coaxially fixed, and the annular groove is provided on the rotating sleeve.

[0012] Optionally, the slider assembly comprises:

[0013] A slider, wherein the slider is at least partially slidably disposed in the sliding cavity;

[0014] An elastic member, one end of which abuts against the slider, and the other end of which abuts against the bottom wall of the sliding cavity, and the elastic member is configured to drive at least a portion of the slider to be inserted into the annular groove.

[0015] Optionally, a first opening is provided on the bottom wall of the sliding cavity, and the sliding block assembly further comprises a cover, which blocks the first opening and is detachably connected to the spray seat.

[0016] Optionally, the sealing cover is fixed to the spray seat by a fastener; or, the sealing cover is snap-connected to the spray seat; or, the sealing cover is threadedly connected to the spray seat.

[0017] Optionally, the slider includes a tongue portion and a limiting portion, and a second opening matching the tongue portion is provided at one end of the sliding cavity close to the flow channel, and the tongue portion can at least partially pass through the second opening and be inserted into the annular groove, and the limiting portion abuts against the side of the second opening away from the flow channel.

[0018] Optionally, a first receiving groove is provided at one end of the limiting portion away from the tongue portion, a second receiving groove is provided on the cover, one end of the elastic member is at least partially inserted in the first receiving groove, and the other end is at least partially inserted in the second receiving groove.

[0019] Optionally, along the sliding direction of the slider, a first guide inclined surface and a second guide inclined surface are respectively provided on two sides of the slider.

[0020] Optionally, the spray device further comprises a driving member, and an output end of the driving member is drivingly connected to the spray arm.

[0021] Optionally, the driving member includes a driving motor, the output shaft of the driving motor is provided with a cross connection portion, the spray arm is provided with a cross groove, and the cross connection portion is inserted into the cross groove.

[0022] Another object of the utility model is to provide a dishwasher, in which the spray arm adopts a simple and convenient disassembly and assembly structure, so that users can easily perform maintenance and cleaning, saving maintenance time and cost and improving the user experience.

[0023] To achieve this purpose, the utility model adopts the following technical solutions:

[0024] The dishwasher comprises an inner tank, a spray arm and a spray seat, wherein the spray seat is arranged on the inner tank, and the spray arm is connected to the spray seat by using the above-mentioned spray device.

[0025] Beneficial effects:

[0026] The spray device provided by the utility model has an annular groove on the spray arm. When at least part of the spray arm is inserted in the flow channel, at least part of the movable end is inserted in the annular groove of the rotating sleeve, thereby limiting the movement of the spray arm along the axial direction of the flow channel, but does not affect the rotation of the spray arm. When disassembling, the spray arm can be directly pulled out of the spray seat by force, thereby making the replacement and maintenance of the spray arm more convenient. The user can easily disassemble and assemble the rotating sleeve, thereby replacing or repairing the spray arm, saving maintenance time and cost.

[0027] The present embodiment also provides a dishwasher, in which the spray arm adopts a simple and convenient disassembly and assembly structure, so that the user can easily perform maintenance and cleaning, saving maintenance time and cost and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an exploded view of the spray device provided by the utility model;

[0029] Figure 2 It is a cross-sectional view of the spray device provided by the utility model;

[0030] Figure 3 It is a structural schematic diagram of the slider provided by the utility model;

[0031] Figure 4 yes Figure 2 A partial enlarged view of the middle A;

[0032] Figure 5 It is an exploded view of the driving member and the rotating sleeve provided by the utility model.

[0033] In the figure:

[0034] 100, spray seat; 110, sliding cavity; 120, slider assembly; 121, slider; 1211, tongue portion; 12111, first guide slope; 12112, second guide slope; 1212, limit portion; 12121, first accommodating groove; 122, elastic member; 123, cover; 1231, second accommodating groove; 130, limit block; 131, third guide slope; 132, anti-loosening protrusion;

[0035] 200, spray arm; 210, spray arm body; 220, rotating sleeve; 221, annular groove; 222, guide cone surface; 223, cross groove;

[0036] 400, driving member; 410, oil seal; 420, cross connection part;

[0037] 800, fixing ring; 810, first limiting protrusion; 820, second limiting protrusion; 821, anti-loosening groove; 830, sealing ring. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be 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.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] This embodiment provides a spray device such as Figure 1-Figure 5As shown, the spray device includes a spray seat 100, a spray arm 200 and a slider assembly 120, the spray arm 200 is arranged on a rotating sleeve 220, a flow channel and a sliding cavity 110 are arranged in the spray seat 100, the opening direction of the sliding cavity 110 is perpendicular to the axial direction of the flow channel, and an annular groove 221 is arranged on the spray arm 200; the moving end of the slider assembly 120 is at least partially slidably arranged in the sliding cavity 110 and the end away from the flow channel is elastically connected to the spray seat 100, and at least part of the moving end of the slider assembly 120 is elastically connected to the spray seat 100. The spray arm 200 is inserted in the flow channel, and at least part of the movable end can be inserted in the annular groove 221, thereby limiting the movement of the spray arm 200 along the axial direction of the flow channel, but does not affect the rotation of the spray arm 200. When disassembling, the spray arm 200 can be directly pulled out from the spray seat 100 with force, thereby making the replacement and maintenance of the spray arm 200 more convenient. The user can easily disassemble and assemble the rotating sleeve 220, thereby replacing or repairing the spray arm 200, saving maintenance time and cost.

[0043] Optionally, the spray arm 200 includes a spray arm body 210 and a rotating sleeve 220. The rotating sleeve 220 is rotatably arranged in the flow channel. The spray arm body 210 and the rotating sleeve 220 are coaxially fixed. An annular groove 221 is opened on the rotating sleeve 220. When the rotating sleeve 220 is assembled in the flow channel, at least part of the movable end can be inserted in the annular groove 221, thereby limiting the movement of the rotating sleeve 220 along the axial direction of the flow channel, but does not affect the synchronous rotation of the rotating sleeve 220 and the spray arm 200. When disassembling, the rotating sleeve 220 can be directly pulled out of the spray seat 100 with force, thereby making the replacement and maintenance of the spray arm 200 more convenient.

[0044] Optionally, the slider assembly 120 includes a slider 121 and an elastic member 122. The slider 121 is slidably disposed in the sliding cavity 110. One end of the elastic member 122 abuts against the slider 121, and the other end abuts against the bottom wall of the sliding cavity 110. The elastic member 122 is used to drive at least part of the slider 121 to extend into the flow channel and be clamped in the annular groove 221, thereby limiting the rotating sleeve 220 from escaping from the flow channel of the spray seat 100. Specifically, when assembling the rotating sleeve 220, the rotating sleeve 220 is inserted into the flow channel along the axial direction of the flow channel, and the outer wall of the rotating sleeve 220 squeezes the slider 121 to make the slider 121 retreat into the sliding cavity 110. At this time, the elastic member 122 is compressed and accumulates elastic force. When the rotating sleeve 220 is plugged into place, the annular groove 221 is opposite to the slider 121. Under the action of the elastic force of the elastic member 122, part of the slider 121 extends out of the sliding cavity 110 and is inserted into the annular groove 221, fixing the rotating sleeve 220 in the axial direction of the flow channel. The disassembly process of the rotating sleeve 220 is opposite to the installation process, which will not be repeated here.

[0045] Optionally, in this embodiment, two slider assemblies 120 are provided on the spray seat 100 , and the two slider assemblies 120 are relatively arranged on both sides of the spray seat 100 , thereby ensuring the force balance of the rotating sleeve 220 and improving the stability of the rotating sleeve 220 .

[0046] Optionally, the bottom wall of the sliding cavity 110 is provided with a first opening, and the slider assembly 120 also includes a cover 123, which blocks the first opening and is detachably connected to the spray seat 100. The setting of the cover 123 facilitates the assembly of the slider 121 and the elastic member 122 in the sliding cavity 110.

[0047] Optionally, the cover 123 is fastened to the spray seat 100 by screws. Specifically, a through hole is provided on the cover 123, and a threaded hole is provided at a position corresponding to the through hole on the spray seat 100, and the screw passes through the through hole and is inserted into the threaded hole, and the screw is threadedly connected to the spray seat 100, so as to stably fix the cover 123 on the spray seat 100.

[0048] Optionally, the cover 123 is threadedly connected to the spray seat 100. Specifically, the cover 123 is provided with a first thread, and the inner wall of the sliding cavity 110 is provided with a second thread, and the first thread and the second thread are screwed together to ensure that the cover 123 is stably fixed on the spray seat 100.

[0049] Optionally, the cover 123 is snap-fitted with the spray seat 100. Specifically, one of the cover 123 and the spray seat 100 is provided with a first buckle, and the other is provided with a first slot, and the first buckle is snap-fitted to the first slot, so as to quickly install the cover 123 on the spray seat 100 and ensure the stability of the cover 123.

[0050] Optionally, the slider 121 includes a tongue portion 1211 and a limiting portion 1212. A second opening matching the tongue portion 1211 is provided at one end of the sliding cavity 110 close to the flow channel. The tongue portion 1211 can pass through the second opening and be inserted into the annular groove 221. The limiting portion 1212 abuts against the inner side of the second opening. The limiting portion 1212 can limit the tongue portion 1211 from escaping from the sliding cavity 110, thereby preventing the slider 121 from accidentally falling off or shifting during use.

[0051] Alternatively, if Figure 4 As shown, a first receiving groove 12121 is provided at one end of the limiting portion 1212 away from the latch portion 1211, and a second receiving groove 1231 is provided on the cover 123. One end of the elastic member 122 is inserted into the first receiving groove 12121, and the other end is inserted into the second receiving groove 1231 to ensure the normal working state of the elastic member 122 and improve the reliability of the slider assembly 120.

[0052] Optionally, the elastic member 122 is a spring, which can provide a more stable elastic force and has a longer service life, thereby enhancing the stability of the connection and ensuring the normal operation of the spray arm 200.

[0053] Optionally, a guide cone 222 is provided at the bottom of the rotating sleeve 220, and the guide cone 222 is used to guide the rotating sleeve 220 to be assembled in the spray seat 100, and the guide cone 222 can reduce the contact resistance between the rotating sleeve 220 and the slider 121 during the assembly process, so that the rotating sleeve 220 can more easily drive the slider 121 to return to the sliding cavity 110, making it easier for the user to correctly install the rotating sleeve 220 on the spray seat 100.

[0054] Alternatively, if Figure 2-Figure 4 As shown, along the sliding direction of the slider 121, the slider 121 is provided with a first guide slope 12111 and a second guide slope 12112 on both sides thereof. The first guide slope 12111 can reduce the resistance when the rotating sleeve 220 is inserted, ensuring that the slider 121 can be driven back to the sliding cavity 110 by the rotating sleeve 220 when the rotating sleeve 220 is assembled, thereby improving the smoothness and assembly efficiency during the assembly process. The second guide slope 12112 can reduce the resistance when the rotating sleeve 220 is pulled out, ensuring that the slider 121 can be driven back to the sliding cavity 110 by the rotating sleeve 220 when the rotating sleeve 220 is disassembled, thereby improving the smoothness and assembly efficiency during the disassembly process.

[0055] Optionally, the spray device also includes a driving member 400, the output end of the driving member 400 is connected to one end of the rotating sleeve 220, and the other end of the rotating sleeve 220 is connected to the spray arm 200. The driving member 400 provides power for the rotating sleeve 220, so that the spray arm 200 can achieve a more stable and controllable rotational movement.

[0056] Alternatively, if Figure 5 As shown, the driving member 400 includes a driving motor, a cross connection part 420 is provided on the output shaft of the driving motor, a cross groove 223 is provided in the rotating sleeve 220, and the cross connection part 420 is inserted in the cross groove 223. This design can ensure a firm connection between the driving motor and the rotating sleeve 220, effectively transmit power, reduce friction and wear during operation, and extend the service life.

[0057] Optionally, an oil seal 410 is provided at the connection between the output shaft of the driving motor and the spray seat 100. The oil seal 410 can effectively prevent leakage of lubricating oil, ensure that the lubricating oil fully lubricates the connection part between the transmission shaft and the spray seat 100, reduce friction and wear, and thus extend the service life; the oil seal 410 can also effectively prevent external impurities such as dust and water vapor from entering the connection part, avoid pollution and corrosion, further protect the connection parts, and ensure the stable operation of the spray device.

[0058] The present embodiment further provides a dishwasher, comprising an inner tank, a spray arm 200 and a spray seat 100, wherein the spray seat 100 is arranged on the inner tank, and the spray arm 200 is connected to the spray seat 100 using the above-mentioned spray device. The spray arm 200 in the dishwasher adopts a simple and convenient disassembly and assembly structure, so that the user can easily perform maintenance and cleaning, saving maintenance time and cost, and improving the user's use experience.

[0059] Optionally, the spray seat 100 can be detachably connected to the inner tank of the dishwasher, which facilitates the assembly of the spray seat 100. Specifically, an assembly hole is provided on the inner tank, and the top of the spray seat 100 is passed through the assembly hole and connected to the fixing ring 800, and part of the inner tank is clamped between the fixing ring 800 and the spray seat 100.

[0060] Optionally, the top of the spray seat 100 is provided with a plurality of limit blocks 130 along the circumferential direction of the spray seat 100, and the inner side of the fixing ring 800 is provided with a plurality of limit grooves along the circumferential direction of the fixing ring 800. When the top of the spray seat 100 is passed through the assembly hole of the inner tank of the dishwasher, the fixing ring 800 is rotatably assembled on the top of the spray seat 100, and each limit block 130 is correspondingly limited in a limit groove, and part of the inner tank is clamped between the fixing ring 800 and the spray seat 100, thereby fixing the spray seat 100 on the inner tank.

[0061] Optionally, the limiting groove is formed by a first limiting protrusion 810 and a second limiting protrusion 820, and the second limiting protrusion 820 is perpendicular to the first limiting protrusion 810. After the fixing ring 800 is rotated into place, the first limiting protrusion 810 is used to limit the fixing ring 800 from continuing to rotate along the circumferential direction of the spray seat 100, and the second limiting protrusion 820 is used to limit the fixing ring 800 from detaching from the spray seat 100 along the axial direction of the spray seat 100.

[0062] Optionally, an anti-loosening groove 821 is provided on the second limiting protrusion 820, and an anti-loosening protrusion 132 is provided on the spray seat 100. After the fixing ring 800 is rotated into place, the anti-loosening protrusion 132 is limited in the anti-loosening groove 821, thereby preventing the fixing ring 800 from loosening due to vibration and the like, and improving the tightness of the fixing ring 800.

[0063] Optionally, the spray device also includes a sealing ring 830, which is mounted on the spray seat 100 and located between the spray seat 100 and the inner tank. The sealing ring 830 can ensure the sealing of the connection between the spray seat 100 and the inner tank to prevent water leakage from the inner tank and prevent dust and other impurities from entering the inner tank of the dishwasher along the gap.

[0064] Optionally, along the direction in which the fixing ring 800 is screwed in, a third guiding slope 131 is provided at the end of the limiting block 130 . The third guiding slope 131 can reduce the resistance when the fixing ring 800 is screwed in, thereby improving the assembly efficiency.

[0065] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A spraying device, characterized in that: include: A spray seat (100), wherein a flow channel and a sliding cavity (110) are provided in the spray seat (100), and the opening direction of the sliding cavity (110) is perpendicular to the axial direction of the flow channel; A spray arm (200), wherein an annular groove (221) is provided on the spray arm; A slider assembly (120), wherein at least a portion of a movable end of the slider assembly (120) is slidably disposed in the sliding cavity (110) and an end away from the flow channel is elastically connected to the spray seat (100), at least a portion of the spray arm (200) is inserted in the flow channel, and at least a portion of the movable end can be inserted in the annular groove (221).

2. The spray device according to claim 1, characterized in that: The spray arm (200) comprises a spray arm body (210) and a rotating sleeve (220); the rotating sleeve (220) is rotatably disposed in the flow channel; the spray arm body (210) and the rotating sleeve (220) are coaxially fixed; and the annular groove (221) is provided on the rotating sleeve (220).

3. The spray device according to claim 1, characterized in that: The slider assembly (120) comprises: A sliding block (121), wherein the sliding block (121) is at least partially slidably disposed in the sliding cavity (110); An elastic member (122), one end of the elastic member (122) abuts against the slider (121), and the other end abuts against the bottom wall of the sliding cavity (110), and the elastic member (122) is configured to drive at least a portion of the slider (121) to be inserted into the annular groove (221).

4. The spray device according to claim 3, characterized in that: The bottom wall of the sliding cavity (110) is provided with a first opening. The sliding block assembly (120) further comprises a cover (123). The cover (123) blocks the first opening and is detachably connected to the spray seat (100).

5. The spray device according to claim 4, characterized in that: The sealing cover (123) is fixed to the spray seat (100) by means of fasteners; or, the sealing cover (123) is snap-connected to the spray seat (100); or, the sealing cover (123) is threadedly connected to the spray seat (100).

6. The spray device according to claim 4, characterized in that: The slider (121) comprises a tongue portion (1211) and a limiting portion (1212); a second opening matching the tongue portion (1211) is provided at one end of the sliding cavity (110) close to the flow channel; the tongue portion (1211) can at least partially pass through the second opening and be inserted into the annular groove (221); and the limiting portion (1212) abuts against a side of the second opening away from the flow channel.

7. The spray device according to claim 6, characterized in that: A first receiving groove (12121) is provided at one end of the limiting portion (1212) away from the latching tongue portion (1211), a second receiving groove (1231) is provided on the cover (123), one end of the elastic member (122) is at least partially inserted into the first receiving groove (12121), and the other end is at least partially inserted into the second receiving groove (1231).

8. The spray device according to claim 3, characterized in that: Along the sliding direction of the slider (121), a first guiding inclined surface (12111) and a second guiding inclined surface (12112) are respectively provided on two sides of the slider (121).

9. The spray device according to any one of claims 1 to 8, characterized in that: The spray device further comprises a driving member (400), the output end of the driving member (400) being transmission-connected to the spray arm (200).

10. The spray device according to claim 9, characterized in that: The driving member (400) comprises a driving motor, the output shaft of the driving motor is provided with a cross connection part (420), the spray arm (200) is provided with a cross groove (223), and the cross connection part (420) is inserted into the cross groove (223).

11. A dishwasher, characterized in that It comprises an inner container, a spray arm (200) and a spray seat (100), wherein the spray seat (100) is arranged on the inner container, and the spray arm (200) is connected to the spray seat (100) by using the spray device according to any one of claims 1 to 10.

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