Spraying arm structure and dish washing machine

Abstract

The utility model relates to a spraying arm structure and a dish-washing machine, and belongs to the technical field of dish-washing machines. The supporting seat is arranged on the main spraying arm piece; the movable part is detachably arranged on the supporting seat; the pulse wheel assembly is arranged opposite to the first spraying hole, and the pulse wheel assembly is arranged on the supporting base in a sleeving mode and can rotate; one of the anti-falling limiting part and the anti-falling adaptive part is arranged on the supporting seat, the other one of the anti-falling limiting part and the anti-falling adaptive part is arranged on the movable part, and the anti-falling limiting part and the anti-falling adaptive part can abut against each other or be separated from each other. Part of the pulse wheel assembly is limited between the movable part and the main spraying arm part, so that the pulse wheel assembly is prevented from being separated from the spraying arm structure in the pulse cleaning process. And the pulse wheel assembly can be ensured to stably and smoothly rotate under the impact of the water flow output by the first spray hole.

Description

Technical Field

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

[0002] The spray arm is an important component of a dishwasher, which can divert and eject the liquid for cleaning tableware. The spray arm generally includes a pulsating wheel, and the cleaning liquid ejected by the spray arm structure can drive the pulsating wheel to rotate. However, in the pulse cleaning process of the existing spray arm structure, due to the continuous change of the amount of liquid instantaneously ejected onto the pulsating wheel, the rotation of the pulsating wheel is not stable enough, and there is a risk that the pulsating wheel will break away from the spray arm. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a spray arm structure and a dishwasher to solve the problems that the rotation of the pulsating wheel is not stable enough and there is a risk of breaking away from the spray arm.

[0004] A spray arm structure includes: a main spray arm member provided with a first spray hole; a support seat disposed on the main spray arm member; a movable member detachably disposed on the support seat; a pulsating wheel assembly disposed opposite to the first spray hole, the pulsating wheel assembly sleeved on the support seat and capable of rotating, and a part of the pulsating wheel assembly being limited between the movable member and the main spray arm member; an anti-disengagement limiting portion and an anti-disengagement mating portion, one of the anti-disengagement limiting portion and the anti-disengagement mating portion is disposed on the support seat, and the other of the anti-disengagement limiting portion and the anti-disengagement mating portion is disposed on the movable member, and the anti-disengagement limiting portion and the anti-disengagement mating portion can abut or separate.

[0005] The present application discloses a spray arm structure. The main spray arm member is provided with a first spray hole for outputting liquid. The pulsating wheel assembly is disposed opposite to the first spray hole, and the liquid output from the first spray hole can drive the pulsating wheel assembly to rotate. A part of the pulsating wheel assembly is limited between the movable member and the main spray arm member, and the main spray arm member provides stable support for the pulsating wheel assembly. Moreover, it prevents the pulsating wheel assembly from breaking away from the spray arm structure during the pulse cleaning process. This design can ensure that the pulsating wheel assembly rotates stably and smoothly under the impact of the water flow output from the first spray hole, so as to achieve the best use effect. The movable member is detachably disposed on the support seat, so the assembly or disassembly method of the pulsating wheel assembly is simple, which is convenient for cleaning, overhauling and replacing the pulsating wheel assembly. The movable member can rotate relative to the support seat, and the movable member rotates until the anti-disengagement limiting portion and the anti-disengagement mating portion abut to limit the pulsating wheel assembly, so that the pulsating wheel assembly can rotate stably.

[0006] In one embodiment, an anti - detachment adaptation portion is formed on the support base. The anti - detachment adaptation portion is a protrusion. The movable member is provided with the anti - detachment limiting portion, and the anti - detachment limiting portion is a clamping groove. The protrusion is located at one end of the support base away from the main spray arm member, and the protrusion can be adapted to the clamping groove. By the protrusion being located in the clamping groove, the connection between the movable member and the support base is more firm and reliable. The accuracy of the assembly of the movable member and the support base is higher, improving the assembly quality of the movable member and the support base.

[0007] In one embodiment, the movable member includes a limiting plate and an adaptation rod. The support base is provided with an adaptation cavity. The adaptation rod is arranged on the support base and is adaptively installed with the adaptation cavity. The limiting plate is arranged on the adaptation rod, and the limiting plate is arranged opposite to the pulse wheel assembly for limiting the pulse wheel assembly. By the adaptation rod having an external thread formed thereon and the inner wall of the adaptation cavity having an internal thread formed thereon, the adaptation rod is adaptively installed with the adaptation cavity, so that the movement of the movable member is more precise and controllable. Moreover, the firmness and stability of the adaptation rod can be improved. By the limiting plate being arranged opposite to the pulse wheel assembly for limiting the pulse wheel assembly, the pulse wheel assembly is prevented from detaching from the main spray arm member.

[0008] In one embodiment, the main spray arm member is provided with a diversion cavity and the first spray hole. The first spray hole is communicated with the diversion cavity. The first spray hole is adjacent to the support base. The liquid output from the first spray hole can drive the pulse wheel assembly to rotate relative to the support base. By the first spray hole being communicated with the diversion cavity, the diversion cavity can store a certain amount of liquid, so that the first spray hole can spray the liquid in time, improving the liquid output efficiency of the main spray arm member. The first spray hole can spray the liquid towards the pulse wheel assembly to make the pulse wheel assembly rotate. The rotation of the pulse wheel assembly makes the liquid splash farther away, so that the coverage range of the output cleaning liquid is wider and the cleaning effect is better. By the two first spray holes being correspondingly located on both sides of the support base, the pulse wheel assembly is prevented from shaking due to uneven force. Moreover, the rotation speed of the pulse wheel assembly can be increased.

[0009] In one embodiment, the support base is provided with an annular groove, or the movable member, the support base and the main spray arm member enclose to form an annular groove; the pulse wheel assembly is located at the annular groove. By the pulse wheel assembly being located at the annular groove, the structure is more compact, the pulse wheel assembly is more stable, and it can ensure that the pulse wheel assembly rotates stably and smoothly under the impact of the sprayed water flow.

[0010] In one embodiment, the pulse wheel assembly includes a housing member, fan blades, and a hub. The hub is sleeved on the support seat, and the hub is capable of rotating relative to the support seat. The housing member surrounds the hub. The number of the fan blades is multiple, and the multiple fan blades are respectively connected to the housing member and the hub and are located between the housing member and the hub. By sleeving the hub on the support seat, the hub is limited between the movable member and the main spray arm member, and the pulse wheel assembly can rotate stably. By arranging the fan blades between the housing member and the hub, the arrangement of the fan blades increases the contact area between the liquid sprayed by the main spray arm member and the pulse wheel assembly, can improve the rotation speed of the pulse wheel assembly, and can reduce the situation that the pulse wheel assembly rotates unstably and shakes.

[0011] In one embodiment, a limiting surface is formed at one end of the card slot away from the pulse wheel assembly. One side of the card slot is the first limiting side, and the included angle between the first limiting side and the limiting surface is an acute angle or a right angle. The other side of the card slot is the second limiting side. The second limiting side and the first limiting side are respectively located on both sides of the limiting surface, and the included angle between the second limiting side and the limiting surface is an obtuse angle. One side of the protrusion is the first assembly side, and the first assembly side is perpendicular or inclined relative to the support seat. The first assembly side can abut against the first limiting side or the first assembly side is arranged opposite to the first limiting side. The other side of the protrusion is the second assembly side, and the second assembly side is inclined relative to the support seat. The second assembly side abuts against the second limiting side or the second assembly side is arranged opposite to the second limiting side. By the included angle between the first limiting side and the limiting surface being an acute angle or a right angle, the first limiting side and the first assembly side perpendicular or inclined relative to the support seat can abut against or be arranged opposite to each other. Similarly, the second assembly side abuts against or is arranged opposite to the second limiting side. The protrusion is snapped into the card slot in a specified orientation, and the assembly accuracy of the movable member and the support seat is higher, improving the stability of the assembly of the movable member and the support seat, so that the pulse wheel assembly located between the movable member and the support seat has good rotation stability.

[0012] In one embodiment, an auxiliary spray arm member is further included. The auxiliary spray arm member is arranged on the main spray arm member, and a part of the auxiliary spray arm member is capable of rotating relative to the main spray arm member. The main spray arm member is provided with a mounting hole and a diversion cavity. A part of the auxiliary spray arm member extends into the mounting hole. The auxiliary spray arm member is provided with a flow-through cavity and a second spray hole. The diversion cavity, the flow-through cavity, and the second spray hole are communicated in sequence. By a part of the auxiliary spray arm member extending into the mounting hole, the auxiliary spray arm member and the main spray arm member are quickly connected, and the installation method is simple and convenient. The rotation performance of the auxiliary spray arm member is stable and reliable. By the diversion cavity, the flow-through cavity, and the second spray hole being communicated in sequence, the liquid in the diversion cavity can be output from the second spray hole, further enhancing the tableware cleaning effect.

[0013] In one embodiment, the auxiliary spray arm member includes a spray arm body and a fixing seat. A groove is formed on the hole wall of the mounting hole. The fixing seat is disposed on the main spray arm member and a part of the fixing seat is located in the groove. The spray arm body is movably disposed on the fixing seat and the spray arm body can rotate relative to the fixing seat. The spray arm body and the fixing seat enclose to form the flow-through cavity, and the spray arm body is provided with the second spray holes. By disposing a part of the fixing seat in the groove, the auxiliary spray arm member is mounted on the main spray arm member, and no tool is required during the mounting process, which is convenient and labor-saving. By enabling the spray arm body to rotate relative to the fixing seat, the spraying range of the spray arm body is increased, and the sprayed liquid output by the spray arm body has no dead angle and can fully cover the tableware to be cleaned.

[0014] In one embodiment, the fixing seat includes a base, a locking member and a rib. The base is disposed on the main spray arm member, a part of the base extends into the mounting hole, a rib is formed on the part of the base extending into the mounting hole, the rib surrounds the base, the rib and the groove are adapted to each other, the locking member is disposed on the base, and the spray arm body is clamped between the locking member and the main spray arm member. By the rib and the groove being adapted to each other, the auxiliary spray arm member is simply and conveniently mounted on the main spray arm member. The rib surrounds the base, and the assembly effect of the auxiliary spray arm member and the main spray arm member is better. By clamping the spray arm body between the locking member and the main spray arm member, the spray arm body can be prevented from detaching from the fixing seat, making the rotation performance of the spray arm body more stable.

[0015] In one embodiment, the rib is provided with a clamping hole, and a positioning post is formed on the groove wall of the groove. The number of the positioning posts and the clamping holes is multiple, the number of the positioning posts is the same as the number of the clamping holes, and the positioning posts and the clamping holes are adapted to each other one by one. By the number of the positioning posts being the same as the number of the clamping holes and the positioning posts and the clamping holes being adapted to each other one by one, the firmness of the fixing seat is further improved, and the rotation performance of the spray arm body is prevented from being affected by the movement of the fixing seat.

[0016] In one embodiment, the rib is provided with an adapting groove, and a positioning post is formed on the groove wall of the groove. The number of the positioning posts and the adapting grooves is multiple, the number of the positioning posts is the same as the number of the adapting grooves, and the positioning posts and the adapting grooves are adapted to each other one by one. By the adapting grooves being arranged at intervals along the circumferential direction of the rib and multiple positioning posts being respectively clamped into the adapting grooves one by one, the degree of freedom of the fixing seat is restricted, making the fixing seat have good firmness.

[0017] In one embodiment, the fixing seat and the main spray arm member are integrally formed by secondary injection molding. The fixing seat and the main spray arm member are integrally formed by secondary injection molding, so that the fixing seat and the main spray arm member form an integral structure, making the structure more compact and improving the overall stability and durability.

[0018] A dishwasher, comprising: a spray arm structure; a dishwasher body, wherein the spray arm structure is movably arranged on the dishwasher body.

[0019] In the second aspect of the present application, a dishwasher is disclosed. Through the arrangement of the spray arm structure, tableware placed inside the dishwasher body can be cleaned. Since the spray arm structure is movably arranged on the dishwasher body, the spray arm structure can rotate relative to the dishwasher body, so that the spraying range is wider, washing blind spots can be avoided, the washing effect is improved, and the practicability is good. Description of the Drawings

[0020] Figure 1 is a perspective view of the spray arm structure;

[0021] Figure 2 is an exploded view of the spray arm structure;

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] Figure 4 is a perspective view of the spray arm structure excluding the spray arm body;

[0024] Figure 5 is a cross-sectional view of the spray arm structure excluding the spray arm body;

[0025] Figure 6 is Figure 5 an enlarged view of part B in

[0026] Figure 7 is Figure 5 an enlarged view of part C in

[0027] Figure 8 is a perspective view of the movable part;

[0028] Figure 9 is a perspective view of the fixed seat;

[0029] Figure 10 is a perspective view of the pulse wheel assembly.

[0030] Among them, the corresponding relationship between the reference numerals and the component names is as follows:

[0031] 1 main spray arm part, 101 diversion cavity, 102 first spray hole, 103 mounting hole;

[0032] 21 support seat, 211 protrusion, 22 movable part, 221 limiting plate, 222 fitting rod, 201 fitting cavity, 202 annular groove, 203 clamping groove, 204 limiting surface, 205 first limiting side, 206 second limiting side, 207 first assembly side, 208 second assembly side;

[0033] 3 Pulse wheel assembly, 31 housing part, 32 fan blades, 33 hub;

[0034] 4 Auxiliary spray arm part, 41 spray arm body, 42 fixing seat, 421 base, 422 locking part, 423 rib, 401 overflow cavity, 402 second spray hole, 403 groove, 404 clamping hole, 405 fitting groove. Specific embodiments

[0035] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0036] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0037] Embodiment 1

[0038] As Figures 1-3 and Figure 8 shown, this embodiment discloses a spray arm structure, including: a main spray arm part 1, the main spray arm part 1 is provided with a first spray hole 102; a support seat 21, the support seat 21 is arranged on the main spray arm part 1; a movable part 22, the movable part 22 is detachably arranged on the support seat 21; a pulse wheel assembly 3, the pulse wheel assembly 3 is arranged opposite to the first spray hole 102, the pulse wheel assembly 3 is sleeved on the support seat 21 and can rotate, and a part of the pulse wheel assembly 3 is limited between the movable part 22 and the main spray arm part 1; an anti-disengagement limiting part and an anti-disengagement fitting part, one of the anti-disengagement limiting part and the anti-disengagement fitting part is arranged on the support seat 21, and the other of the anti-disengagement limiting part and the anti-disengagement fitting part is arranged on the movable part 22, and the anti-disengagement limiting part and the anti-disengagement fitting part can abut or separate.

[0039] The present application discloses a spray arm structure. The main spray arm member 1 is provided with a first spray hole 102 for outputting liquid. The pulse wheel assembly 3 is arranged opposite to the first spray hole 102, and the liquid output from the first spray hole 102 can drive the pulse wheel assembly 3 to rotate. Part of the pulse wheel assembly 3 is limited between the movable member 22 and the main spray arm member 1, and the main spray arm member 1 provides stable support for the pulse wheel assembly 3. Moreover, it prevents the pulse wheel assembly 3 from detaching from the spray arm structure during pulse cleaning. This design can ensure that the pulse wheel assembly 3 rotates stably and smoothly under the impact of the water flow output from the first spray hole 102, so as to achieve the best use effect. The movable member 22 is detachably arranged on the support seat 21, so the assembly or disassembly method of the pulse wheel assembly 3 is simple, which is convenient for cleaning, overhauling and replacing the pulse wheel assembly 3. The movable member 22 can rotate relative to the support seat 21. When the movable member 22 rotates to make the anti-detachment limiting portion and the anti-detachment adapting portion abut against each other to limit the pulse wheel assembly 3, the pulse wheel assembly 3 can rotate stably.

[0040] As Figure 3 and Figure 8 shown, in addition to the features of the above embodiments, the present embodiment further defines that: an anti-detachment adapting portion is formed on the support seat 21, the anti-detachment adapting portion is a protrusion 211, the movable member 22 is provided with the anti-detachment limiting portion, the anti-detachment limiting portion is a clamping groove 203, the protrusion 211 is located at one end of the support seat 21 away from the main spray arm member 1, and the protrusion 211 can be adapted to the clamping groove 203. By the protrusion 211 being located in the clamping groove 203, the connection between the movable member 22 and the support seat 21 is more firm and reliable. The assembly accuracy of the movable member 22 and the support seat 21 is higher, and the assembly quality of the movable member 22 and the support seat 21 is improved.

[0041] As Figure 6 and Figure 8 shown, in addition to the features of the above embodiments, the present embodiment further defines that: the movable member 22 includes a limiting plate 221 and an adapting rod 222, the support seat 21 is provided with an adapting cavity 201, the adapting rod 222 is arranged on the support seat 21 and is adaptively installed with the adapting cavity 201, the limiting plate 221 is arranged on the adapting rod 222, and the limiting plate 221 is arranged opposite to the pulse wheel assembly 3 for limiting the pulse wheel assembly 3. By the adapting rod 222 being formed with an external thread and the inner wall of the adapting cavity 201 being formed with an internal thread, and the adapting rod 222 being adaptively installed with the adapting cavity 201, the movement of the movable member 22 is more precise and controllable. Moreover, the firmness and stability of the adapting rod 222 can be improved. By the limiting plate 221 being arranged opposite to the pulse wheel assembly 3 for limiting the pulse wheel assembly 3, the pulse wheel assembly 3 is prevented from detaching from the main spray arm member 1.

[0042] As Figure 5As shown, in addition to the features of the above embodiments, this embodiment further defines that the main spray arm member 1 is provided with a diversion cavity 101 and the first spray hole 102, the first spray hole 102 is communicated with the diversion cavity 101, the first spray hole 102 is adjacent to the support seat 21, and the liquid output from the first spray hole 102 can drive the pulse wheel assembly 3 to rotate relative to the support seat 21. By communicating the first spray hole 102 with the diversion cavity 101, the diversion cavity 101 can store a certain amount of liquid, so that the first spray hole 102 can spray the liquid in time, improving the liquid output efficiency of the main spray arm member 1. The first spray hole 102 can spray liquid towards the pulse wheel assembly 3 to make the pulse wheel assembly 3 rotate, and the rotation of the pulse wheel assembly 3 makes the liquid splash further, so that the range covered by the output cleaning liquid is wider and the cleaning effect is better. By arranging two first spray holes 102 corresponding to each other on both sides of the support seat 21, the pulse wheel assembly 3 is prevented from shaking due to uneven force. Moreover, the rotation speed of the pulse wheel assembly 3 can be increased.

[0043] As Figure 4 and Figure 6 shown, in addition to the features of the above embodiments, this embodiment further defines that the support seat 21 is provided with an annular groove 202, or the movable member 22, the support seat 21 and the main spray arm member 1 enclose an annular groove 202; the pulse wheel assembly 3 is located at the annular groove 202. By arranging the pulse wheel assembly 3 at the annular groove 202, the structure is more compact, the pulse wheel assembly 3 is more stable, and it can ensure that the pulse wheel assembly 3 rotates stably and smoothly under the impact of the ejected water flow.

[0044] As Figure 10 shown, in addition to the features of the above embodiments, this embodiment further defines that the pulse wheel assembly 3 includes a housing member 31, fan blades 32 and a hub 33, the hub 33 is sleeved on the support seat 21, the hub 33 can rotate relative to the support seat 21, the housing member 31 is arranged around the hub 33, the number of the fan blades 32 is multiple, and the multiple fan blades 32 are respectively connected to the housing member 31 and the hub 33 and are located between the housing member 31 and the hub 33. By sleeving the hub 33 on the support seat 21 and limiting the hub 33 between the movable member 22 and the main spray arm member 1, the pulse wheel assembly 3 can rotate stably. By arranging the fan blades 32 between the housing member 31 and the hub 33, the fan blades 32 increase the contact area between the liquid ejected by the main spray arm member 1 and the pulse wheel assembly 3, can increase the rotation speed of the pulse wheel assembly 3, and can reduce the situation that the pulse wheel assembly 3 rotates unstably and shakes.

[0045] As Figure 3 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further defines that: one end of the card slot 203 away from the pulse wheel assembly 3 forms a limiting surface 204, one side of the card slot 203 is a first limiting side 205, the included angle between the first limiting side 205 and the limiting surface 204 is an acute angle or a right angle, the other side of the card slot 203 is a second limiting side 206, the second limiting side 206 and the first limiting side 205 are respectively located on both sides of the limiting surface 204, and the included angle between the second limiting side 206 and the limiting surface 204 is an obtuse angle; one side of the protrusion 211 is a first assembly side 207, the first assembly side 207 is perpendicular or inclined relative to the support base 21, the first assembly side 207 can abut against the first limiting side 205 or the first assembly side 207 is arranged opposite to the first limiting side 205, the other side of the protrusion 211 is a second assembly side 208, the second assembly side 208 is inclined relative to the support base 21, and the second assembly side 208 abuts against the second limiting side 206 or the second assembly side 208 is arranged opposite to the second limiting side 206. Since the included angle between the first limiting side 205 and the limiting surface 204 is an acute angle or a right angle, the first limiting side 205 and the first assembly side 207 perpendicular or inclined relative to the support base 21 can abut against each other or be arranged opposite to each other. Similarly, the second assembly side 208 abuts against the second limiting side 206 or is arranged opposite to the second limiting side 206. The protrusion 211 is snapped into the card slot 203 in a specified orientation, and the assembly accuracy of the movable member 22 and the support base 21 is higher, improving the stability of the assembly of the movable member 22 and the support base 21, so that the pulse wheel assembly 3 located between the movable member 22 and the support base 21 has good rotational stability.

[0046] As Figure 1 and Figure 2 shown, in addition to the features of the above embodiments, this embodiment further defines that: it further includes an auxiliary spray arm member 4, the auxiliary spray arm member 4 is arranged on the main spray arm member 1, a part of the auxiliary spray arm member 4 can rotate relative to the main spray arm member 1, the main spray arm member 1 is provided with a mounting hole 103 and a diversion cavity 101, a part of the auxiliary spray arm member 4 extends into the mounting hole 103, the auxiliary spray arm member 4 is provided with a flow-through cavity 401 and a second spray hole 402, and the diversion cavity 101, the flow-through cavity 401 and the second spray hole 402 are communicated in sequence. By extending a part of the auxiliary spray arm member 4 into the mounting hole 103, the auxiliary spray arm member 4 and the main spray arm member 1 are quickly connected, and the installation method is simple and convenient, and the rotation performance of the auxiliary spray arm member 4 is stable and reliable. By the sequential communication of the diversion cavity 101, the flow-through cavity 401 and the second spray hole 402, the liquid in the diversion cavity 101 can be output from the second spray hole 402, further enhancing the tableware cleaning effect.

[0047] As Figure 5 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further defines that the auxiliary spray arm member 4 includes a spray arm body 41 and a fixing base 42. A groove 403 is formed on the hole wall of the mounting hole 103. The fixing base 42 is disposed on the main spray arm member 1 and a part of the fixing base 42 is located in the groove 403. The spray arm body 41 is movably disposed on the fixing base 42. The spray arm body 41 can rotate relative to the fixing base 42. The spray arm body 41 and the fixing base 42 enclose to form the flow-through cavity 401. The spray arm body 41 is provided with the second spray holes 402. By disposing a part of the fixing base 42 in the groove 403, the auxiliary spray arm member 4 is mounted on the main spray arm member 1, and no tool is required during the installation process, which is convenient and labor-saving. By enabling the spray arm body 41 to rotate relative to the fixing base 42, the spraying range of the spray arm body 41 is increased, and the sprayed liquid output by the spray arm body 41 has no dead angle and can fully cover the tableware to be cleaned.

[0048] As Figure 7 and Figure 9 shown, in addition to the features of the above embodiments, this embodiment further defines that the fixing base 42 includes a base 421, a locking member 422 and a rib 423. The base 421 is disposed on the main spray arm member 1. A part of the base 421 extends into the mounting hole 103. A rib 423 is formed on the part of the base 421 extending into the mounting hole 103. The rib 423 is disposed around the base 421. The rib 423 is adapted to the groove 403. The locking member 422 is disposed on the base 421. The spray arm body 41 is clamped between the locking member 422 and the main spray arm member 1. By the rib 423 being adapted to the groove 403, the auxiliary spray arm member 4 is simply and conveniently mounted on the main spray arm member 1. The rib 423 is disposed around the base 421, and the assembly effect of the auxiliary spray arm member 4 and the main spray arm member 1 is better. By clamping the spray arm body 41 between the locking member 422 and the main spray arm member 1, the spray arm body 41 can be prevented from disengaging from the fixing base 42, making the rotation performance of the spray arm body 41 more stable.

[0049] As Figure 9 shown, in addition to the features of the above embodiments, this embodiment further defines that the rib 423 is provided with a locking hole 404. A positioning post is formed on the groove wall of the groove 403. The number of the positioning posts and the locking holes 404 is multiple. The number of the positioning posts is the same as that of the locking holes 404 and the positioning posts and the locking holes 404 are adapted to each other one by one. By the number of the positioning posts being the same as that of the locking holes 404 and the positioning posts and the locking holes 404 being adapted to each other one by one, the firmness of the fixing base 42 is further improved, and the rotation performance of the spray arm body 41 is prevented from being affected by the fixing base 42 moving.

[0050] As Figure 9As shown, in addition to the features of the above embodiments, this embodiment further defines that: the rib 423 is provided with an adapted groove 405, positioning posts are formed on the groove wall of the groove 403, the number of the positioning posts and the adapted groove 405 is multiple, the number of the positioning posts is the same as that of the adapted groove 405 and the positioning posts and the adapted groove 405 are adapted to each other one by one. By arranging the adapted grooves 405 at intervals along the circumferential direction of the rib, the multiple positioning posts are respectively snapped into the adapted grooves 405 one by one, thereby restricting the degrees of freedom of the fixing seat 42 and making the fixing seat 42 have good firmness.

[0051] In addition to the features of the above embodiments, this embodiment further defines that: the fixing seat 42 and the main spray arm member 1 are integrally formed by secondary injection molding. The fixing seat 42 and the main spray arm member 1 are integrally formed by secondary injection molding, so that the fixing seat 42 and the main spray arm member 1 form an integral structure, making the structure more compact and improving the overall stability and durability.

[0052] Embodiment 2

[0053] A dishwasher, comprising: a spray arm structure; a dishwasher body, wherein the spray arm structure is movably arranged on the dishwasher body.

[0054] In the second aspect of the present application, a dishwasher is disclosed. By arranging the spray arm structure, tableware placed inside the dishwasher body can be cleaned. Since the spray arm structure is movably arranged on the dishwasher body, the spray arm structure can rotate relative to the dishwasher body, so that the spraying range is wider, washing blind spots can be avoided, the washing effect is improved, and the practicability is good.

[0055] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A spray arm structure, characterized in that: include: A main spray arm member (1), wherein the main spray arm member (1) is provided with a first spray hole (102); A support seat (21), wherein the support seat (21) is arranged on the main spray arm member (1); A movable part (22), wherein the movable part (22) is detachably arranged on the support seat (21); a pulse wheel assembly (3), the pulse wheel assembly (3) being arranged opposite to the first spray hole (102), the pulse wheel assembly (3) being sleeved on the support seat (21) and being rotatable, and a portion of the pulse wheel assembly (3) being limited between the movable part (22) and the main spray arm part (1); An anti-slip limit part and an anti-slip adapter part, one of which is arranged on the support seat (21), and the other of which is arranged on the movable part (22), and the anti-slip limit part and the anti-slip adapter part can be against or separated.

2. The spray arm structure according to claim 1, characterized in that: An anti-slip adaptor is formed on the support seat (21), the anti-slip adaptor is a protrusion (211), the movable part (22) is provided with the anti-slip limiter, the anti-slip limiter is a slot (203), the protrusion (211) is located at one end of the support seat (21) away from the main spray arm part (1), and the protrusion (211) can be adapted to the slot (203).

3. The spray arm structure according to claim 1 or 2, characterized in that: The movable part (22) comprises a limit plate (221) and an adapting rod (222); the support seat (21) is provided with an adapting cavity (201); the adapting rod (222) is arranged on the support seat (21) and is adapted and installed with the adapting cavity (201); the limit plate (221) is arranged on the adapting rod (222); the limit plate (221) is arranged relative to the pulse wheel assembly (3) and is used to limit the pulse wheel assembly (3).

4. The spray arm structure according to claim 1, characterized in that: The main spray arm member (1) is provided with a guide cavity (101) and the first spray hole (102), the first spray hole (102) and the guide cavity (101) are in communication, the first spray hole (102) and the support seat (21) are arranged adjacent to each other, and the liquid outputted from the first spray hole (102) can drive the pulse wheel assembly (3) to rotate relative to the support seat (21); And / or the pulse wheel assembly (3) comprises a shell member (31), a fan blade (32) and a wheel hub (33); the wheel hub (33) is sleeved on the support seat (21); the wheel hub (33) can rotate relative to the support seat (21); the shell member (31) is arranged around the wheel hub (33); there are a plurality of fan blades (32); the plurality of fan blades (32) are respectively connected to the shell member (31) and the wheel hub (33) and are located between the shell member (31) and the wheel hub (33).

5. The spray arm structure according to claim 2, characterized in that: The end of the slot (203) away from the pulse wheel assembly (3) forms a limiting surface (204); one side of the slot (203) is a first limiting side (205); the angle between the first limiting side (205) and the limiting surface (204) is an acute angle or a right angle; the other side of the slot (203) is a second limiting side (206); the second limiting side (206) and the first limiting side (205) are respectively located on two sides of the limiting surface (204); the angle between the second limiting side (206) and the limiting surface (204) is an obtuse angle; One side of the protrusion (211) is a first assembly side (207), the first assembly side (207) is vertical or inclined relative to the support seat (21), the first assembly side (207) can be against the first limiting side (205) or the first assembly side (207) and the first limiting side (205) are arranged opposite to each other, and the other side of the protrusion (211) is a second assembly side (208), the second assembly side (208) is inclined relative to the support seat (21), the second assembly side (208) and the second limiting side (206) are against each other or the second assembly side (208) and the second limiting side (206) are arranged opposite to each other.

6. The spray arm structure according to claim 1, characterized in that: The invention also comprises an auxiliary spray arm member (4), wherein the auxiliary spray arm member (4) is arranged on the main spray arm member (1), and a part of the auxiliary spray arm member (4) can rotate relative to the main spray arm member (1), and the main spray arm member (1) is provided with a mounting hole (103) and a flow guide cavity (101), and a part of the auxiliary spray arm member (4) extends into the mounting hole (103), and the auxiliary spray arm member (4) is provided with a flow chamber (401) and a second spray hole (402), and the flow guide cavity (101), the flow chamber (401) and the second spray hole (402) are sequentially connected.

7. The spray arm structure according to claim 6, characterized in that: The auxiliary spray arm member (4) comprises a spray arm body (41) and a fixing seat (42); a groove (403) is formed on the hole wall of the mounting hole (103); the fixing seat (42) is arranged on the main spray arm member (1) and a part of the fixing seat (42) is arranged in the groove (403); the spray arm body (41) is movably arranged on the fixing seat (42); the spray arm body (41) can rotate relative to the fixing seat (42); the spray arm body (41) and the fixing seat (42) enclose the flow chamber (401); and the spray arm body (41) is provided with the second spray hole (402).

8. The spray arm structure according to claim 7, characterized in that: The fixing seat (42) comprises a base (421), a locking member (422) and a convex rib (423); the base (421) is arranged on the main spray arm member (1); a portion of the base (421) extends into the mounting hole (103); a convex rib (423) is formed on the portion of the base (421) extending into the mounting hole (103); the convex rib (423) is arranged around the base (421); the convex rib (423) and the groove (403) are adapted to each other; the locking member (422) is arranged on the base (421); and the spray arm body (41) is sandwiched between the locking member (422) and the main spray arm member (1).

9. The spray arm structure according to claim 8, characterized in that: The convex rib (423) is provided with a clamping hole (404), and a positioning column is formed on the groove wall of the groove (403). The number of the positioning columns and the number of the clamping holes (404) are both multiple, the number of the positioning columns is the same as the number of the clamping holes (404), and the positioning columns and the clamping holes (404) are matched one by one; and / or the convex rib (423) is provided with an adapting groove (405), a positioning column is formed on the groove wall of the groove (403), the number of the positioning columns and the number of the adapting groove (405) are multiple, the number of the positioning columns is the same as the number of the adapting grooves (405), and the positioning columns and the adapting grooves (405) are adapted one by one; And / or the fixing seat (42) and the main spray arm member (1) are formed by secondary injection molding.

10. A dishwasher, characterized in that: include: The spray arm structure according to any one of claims 1 to 9; The dishwasher body, the spray arm structure is movably arranged on the dishwasher body.

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