Spray Lance Assemblies and Dishwashers

Abstract

The present invention discloses a spray rod assembly and a dishwasher, wherein the spray rod assembly comprises: a water inlet joint, wherein the water inlet joint defines a chamber, wherein a mounting portion is disposed in the chamber; a bearing, wherein the bearing is disposed in the chamber, wherein the mounting portion cooperates with the bearing to limit the bearing; and a transmission member, wherein the transmission member comprises a spray rod, wherein at least a portion of the transmission member is disposed in the chamber and rotatably cooperates with the bearing. According to the spray rod assembly of an embodiment of the present invention, by fixing the transmission member on the bearing, the transmission member having the spray rod can achieve smooth rotation, and by limiting the bearing by cooperating with the bearing and the mounting portion, the bearing is fixed in the chamber, thereby ensuring that the transmission member having the spray rod can be stably fixed in the chamber, and the overall structure is simple and easy to assemble, thereby ensuring the stability and reliability of the spray rod assembly, and facilitating popularization and application.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a spray rod assembly and a dishwasher. Background Art

[0002] In the related art, the spray arm is an important part of the dishwasher. Since the spray arm needs to rotate along its axis, the spray arm cannot be fixed and cannot rotate; at the same time, the spray arm needs to rotate smoothly, so it is necessary to avoid problems such as forward and backward movement. In addition, water needs to be supplied to the spray arm, so a sealing structure is required when the spray arm is installed to prevent water leakage and affect the water pressure; in addition, the convenience of spray arm installation and the stability after installation affect the performance of the dishwasher. Therefore, there is room for research on the installation design of the spray arm. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a spray bar assembly, the spray bar of the spray bar assembly can be stably placed in a chamber and can rotate smoothly.

[0004] A spray bar assembly according to an embodiment of the present invention includes: a water inlet joint, which defines a chamber, and a mounting portion is provided in the chamber; a bearing, which is provided in the chamber, and the mounting portion cooperates with the bearing to limit the bearing; a transmission member, which includes a spray bar, and at least a portion of the transmission member is provided in the chamber and rotatably cooperates with the bearing.

[0005] The spray rod assembly according to the embodiment of the present invention can realize smooth rotation of the transmission member with the spray rod by fixing the transmission member on the bearing, and the bearing is limited by the cooperation between the bearing and the mounting portion so that the bearing is fixed in the chamber, thereby ensuring that the transmission member with the spray rod can be stably fixed in the chamber, and the overall structure is simple and easy to assemble, thereby ensuring the stability and reliability of the spray rod assembly and facilitating popularization and application.

[0006] According to the spray bar assembly of the embodiment of the present invention, the bearings include at least two, the two bearings are arranged at intervals in the axial direction of the spray bar, and the spray bar is rotatably matched with the two bearings respectively.

[0007] According to the spray bar assembly of the embodiment of the present invention, the mounting portion comprises a mounting groove, and the outer wall surface of the bearing has a positioning protrusion, and the positioning protrusion is suitable for plugging and matching with the mounting groove.

[0008] In some examples, the bearing includes two, the mounting groove includes a first mounting groove and a second mounting groove, the first mounting groove is located adjacent to the top of the water inlet joint, the second mounting groove is located adjacent to the bottom of the water inlet joint, and the first mounting groove and the second mounting groove are spaced apart in the circumferential direction of the chamber.

[0009] In some examples, the water inlet connector includes: a seat body and a cover body, the cover body is disposed on the seat body and sealedly connected to the seat body, and the chamber is defined between the cover body and the seat body.

[0010] In some examples, the first mounting groove and the second mounting groove are formed on the inner surface of the side wall of the seat body, and the mounting groove also includes a third mounting groove. The third mounting groove is formed on the inner surface of the side wall of the seat body, one end of the third mounting groove extends to the top of the seat body, and the other end of the third mounting groove extends to the second mounting groove and is connected to the second mounting groove, and a limiting rib extending into the chamber is provided on the side of the cover body facing the seat body, and the limiting rib stops at the positioning protrusion that cooperates with the second mounting groove.

[0011] In some examples, a limiting boss extending into the chamber is provided on a side of the cover body facing the base body, and the limiting boss stops at the bearing matched with the first mounting groove.

[0012] In some examples, it further includes: a fixing seat for mounting a bearing, the fixing seat is disposed in the chamber and fixedly matched with the seat body, and the first mounting groove and the second mounting groove are respectively formed on the fixing seat.

[0013] In some examples, one of the seat body and the fixing seat has a positioning rib and the other has a positioning groove that cooperates with the positioning rib.

[0014] In some examples, the positioning groove is provided on the fixing seat, and the positioning groove, the first mounting groove and the second mounting groove are arranged at intervals in the circumferential direction of the fixing seat.

[0015] In some examples, one end of the fixing seat has a positioning flange extending outward, and the positioning flange is arranged on the top of the seat body and is abutted against the cover body.

[0016] According to the spray boom assembly of an embodiment of the present invention, a first seal is provided in the chamber, and the inner surface of the water inlet joint and the outer surface of the spray boom are sealed together by the first seal; and / or the cover body and the base body define the chamber, and the cover body and the base body are sealed together by a second seal, wherein one of the cover body and the base body has a sealing groove, and the second seal is provided in the sealing groove and is sealed together with the other of the cover body and the base body.

[0017] According to the spray rod assembly of an embodiment of the present invention, the water inlet joint includes a seat body and a cover body, the cover body and the seat body define the chamber, one of the outer wall surface of the cover body and the end of the seat body facing the cover body has a snap-fit ​​structure, and the other has a buckle structure, and the cover body and the seat body are fixedly connected via the snap-fit ​​structure and the buckle structure.

[0018] The spray bar assembly according to the embodiment of the present invention further includes: a fixing member, which cooperates with one end of the spray bar, and at least a part of the fixing member is stopped on one side of the bearing to axially limit the spray bar.

[0019] In some examples, an outer peripheral wall of one end of the spray bar has an annular groove, and the fixing member forms a snap ring snapped to the annular groove, and an outer diameter of the snap ring is larger than an inner diameter of the bearing.

[0020] In some examples, the end surface of one end of the spray rod has a recess, and the fixing member includes: a connecting portion, which is suitable for being inserted into the recess; a limiting portion, which is connected to the connecting portion and extends along the circumference of the connecting portion, the connecting portion protrudes from the surface of the limiting portion, and the outer diameter of the limiting portion is larger than the inner diameter of the bearing.

[0021] In some specific examples, a buckle position is provided in the recess, and a locking position is provided in the connecting portion, and the connecting portion is suitable for being inserted into the recess and rotated to a state where the locking position cooperates with the buckle position.

[0022] According to some embodiments of the present invention, the transmission member further comprises an engaging portion, wherein the engaging portion is provided on the spray bar and is suitable for gear matching.

[0023] The dishwasher according to the second embodiment of the present invention comprises the spray rod assembly according to the first embodiment of the present invention. By adopting the spray rod assembly, the spray rod can achieve smooth rotation, stable fixation, simple overall structure, and easy assembly, thereby improving the stability and reliability of the dishwasher, thereby improving the user experience.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is an exploded view of a spray bar assembly according to one embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a spray bar assembly according to an embodiment of the present invention;

[0028] Figure 3 is a schematic structural diagram of a bearing according to an embodiment of the present invention;

[0029] Figure 4 is a schematic structural diagram of a seat body according to an embodiment of the present invention;

[0030] Figure 5 is a cross-sectional view of a seat body according to one embodiment of the present invention;

[0031] Figure 6 is a structural schematic diagram of a spray bar assembly according to another embodiment of the present invention;

[0032] Figure 7 is a schematic structural diagram of a fixing base according to an embodiment of the present invention;

[0033] Figure 8 2 is a schematic structural diagram of a seat body according to another embodiment of the present invention.

[0034] Reference numerals:

[0035] Spray boom assembly 100,

[0036] Inlet connector 10, chamber 101, sealing chamber 102, seat body 11, cover body 12, limiting boss 121, limiting rib 122, sealing groove 13, clamping convex 14, clamping groove 15, positioning convex rib 16, through hole 17,

[0037] Bearing 20, positioning protrusion 21,

[0038] Spray rod 30, annular groove 31, recess 32, meshing portion 33, spray hole 34,

[0039] The fixing seat 40, the positioning groove 41, the positioning flange 42, the reinforcing rib 43,

[0040] The first mounting groove 51, the second mounting groove 52, the third mounting groove 53,

[0041] A first sealing member 61, a second sealing member 62,

[0042] The fixing part 70 , the connecting part 71 , and the limiting part 72 . DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Reference below Figure 1-Figure 8 A spray boom assembly 100 according to an embodiment of the present invention is described.

[0047] like Figure 1-Figure 8As shown, a spray bar assembly 100 according to an embodiment of the present invention includes: a water inlet joint 10, a bearing 20 and a transmission member, the water inlet joint 10 defines a chamber 101, a mounting portion is provided in the chamber 101, the bearing 20 is provided in the chamber 101, the mounting portion cooperates with the bearing 20 to limit the bearing 20, wherein the mounting portion here can be a mounting groove, or a mounting convex portion, or a mounting rib position, etc., the mounting portion can be arranged on the inner wall of the chamber 101, or can be arranged on a structural member inside the chamber 101.

[0048] The bottom wall of the chamber 101 has a through hole 17, and the transmission member includes a spray rod 30. At least a portion of the transmission member is arranged in the chamber 101. Here, what extends into the chamber 101 may be a portion of the spray rod 30. For example, one end of the spray rod 30 is suitable for penetrating the through hole 17 and is arranged in the chamber 101. The spray rod 30 cooperates with the bearing 20 so that the spray rod 30 is connected to the bearing 20. The spray rod 30 can rotate with the inner ring of the bearing 20. The other end of the spray rod 30 extends in a direction away from the bearing 20. Of course, what extends into the chamber 101 may also be a portion of a matching rod fixedly connected to the spray rod 30.

[0049] According to the spray bar assembly 100 of the embodiment of the present invention, the transmission member with the spray bar 30 can achieve smooth rotation by fixing the transmission member on the bearing 20, and the bearing 20 is limited by the cooperation between the bearing 20 and the mounting portion, so that the bearing 20 is fixed in the chamber 101, thereby ensuring that the transmission member with the spray bar 30 can be stably fixed in the chamber 101, and the overall structure is simple and easy to assemble, thereby ensuring the stability and reliability of the spray bar assembly 100 and facilitating promotion and application.

[0050] According to one embodiment of the present invention, chamber 101 has a water inlet connected to a water source, and the water inlet can be located on the side of chamber 101. The side of the transmission member has a water outlet connected to the water inlet. After the transmission member cooperates with chamber 101, a structure of side water inlet and end water outlet can be formed. At this time, chamber 101 can realize the function of water passing; the water inlet of chamber 101 can also be located at the end of chamber 101. After the transmission member cooperates with chamber 101, one end of the transmission member is connected to the water inlet, thereby realizing a structure of water inlet at one end and water outlet at the other end.

[0051] According to one embodiment of the present invention, at least a portion of the spray rod 30 is disposed in the chamber 101, for example, one end of the spray rod 30 is suitable for penetrating the through hole 17 and is disposed in the chamber 101, the spray rod 30 cooperates with the bearing 20, so that the spray rod 30 is connected to the bearing 20, the spray rod 30 can rotate with the inner ring of the bearing 20, and the other end of the spray rod 30 extends in a direction away from the bearing 20. Specifically, the spray rod 30 can rotate around the axis c of the spray rod 30, that is, the spray rod 30 is a slender spray rod structure, and the spray rod 30 has a plurality of spray holes 34 arranged at intervals in the axial direction. During the rotation of the spray rod 30, water flows through the spray holes 34 and sprays into the dishwasher. The spray rod 30 can rotate under the driving action of a driving member, for example, the driving member is a motor gear assembly, and a meshing portion 33 is provided on the spray rod 30, and the meshing portion 33 cooperates with the gear. Under the drive of the motor, the gear and the meshing portion 33 are driven to rotate, thereby driving the spray rod 30 to rotate, thereby improving the spraying effect of the spray rod 30. The outer side of the spray rod 30 may also be sleeved with a gear, which is connected to the spray rod 30, and the teeth of the gear form a meshing portion 33. Of course, the gear may also be integrally formed on the spray rod 30 to improve assembly efficiency.

[0052] According to another embodiment of the present invention, the transmission member includes a driven wheel and a spray rod, the driven wheel is suitable for rotating under the driving action of the driving member, the driving member can be a driving wheel or a driving wheel, etc., the driven wheel has a water pipe, the spray rod is fixedly connected to one end of the water pipe, at least a part of the other end of the water pipe extends into the chamber 101, for example, one end of the water pipe is suitable for penetrating a through hole 17 and is arranged in the chamber 101, the water pipe cooperates with the bearing 20, so that the water pipe is connected to the bearing 20, the water pipe can rotate with the inner ring of the bearing 20, when the driving member drives the driven wheel to rotate, the water pipe rotates, driving the spray rod to rotate. Among them, one end of the water pipe has a water outlet, and the water outlet can be connected to the spray rod, so as to supply water to the spray rod.

[0053] like Figure 2 and Figure 6 As shown, according to one embodiment of the present invention, the bottom wall of the chamber 101 has a sealed cavity 102, and a first sealing member 61 is provided in the sealed cavity 102. The inner surface of the first sealing member 61 is connected to the spray rod 30 by interference fit, and the outer surface of the first sealing member 62 is stop fit with the inner surface of the water inlet joint 10, thereby making the inner surface of the water inlet joint 10 and the outer surface of the spray rod 30 sealed by the first sealing member 61, thereby ensuring the sealing of the connection between the spray rod 30 and the water inlet joint 10, and avoiding water leakage and the like that affect the spraying efficiency and spraying effect of the spray rod 30.

[0054] The first sealing member 61 may be an oil seal, that is, a double-lip oil seal with a self-tightening spring completely covered with rubber, and the reliability of the seal may be improved by using the oil seal. Of course, the first sealing member 61 may also be a conventional sealing ring.

[0055] like Figure 2 and Figure 6 As shown, according to one embodiment of the present invention, the bearing 20 includes at least two bearings 20, and the two bearings 20 are in the direction of the axis of the spray rod 30 (such as Figure 2 The spray rod 30 is arranged at intervals in the upper and lower directions as shown in the figure. The spray rod 30 is a slender structure. One end of the spray rod 30 is inserted into each bearing 20, and the end is matched with at least one bearing 20. The other end of the spray rod 30 forms a free end. By providing at least two bearings 20, the stability of the spray rod 30 can be ensured, and the shaking of the spray rod 30 and other factors that affect the spraying range and spraying effect can be avoided.

[0056] like Figure 1 As shown, according to one embodiment of the present invention, the spray rod assembly 100 includes: a fixing member 70, the fixing member 70 is used to match the spray rod 30 with the bearing 20, specifically, the fixing member 70 is matched with one end of the spray rod 30, and at least a portion of the fixing member 70 is stopped on one side of the bearing 20, thereby the spray rod 30 can be axially limited to prevent the spray rod 30 from falling off under the impact of water, resulting in failure of the matching between the spray rod 30 and the bearing 20, etc.

[0057] like Figure 1 and Figure 2 As shown, in some examples, the fixing member 70 forms a snap ring, and the outer peripheral wall of one end of the spray rod 30 has an annular groove 31. The snap ring is suitable for being snapped into the annular groove 31, and the outer diameter of the snap ring is larger than the inner diameter of the bearing 20, so that the snap ring can fix the upper end of the spray rod 30 on the upper side of the bearing 20 to prevent the spray rod 30 from sliding downward. The snap ring can hold the spray rod 30, thereby preventing the spray rod 30 from falling off under the impact of water, resulting in failure of the cooperation between the spray rod 30 and the bearing 20. Preferably, the snap ring is made of stainless steel to improve the structural strength of the snap ring, thereby improving the stability and service life of the overall structure.

[0058] like Figure 6 As shown, in some examples, the end surface of one end of the spray rod 30 has a recess 32, the fixing member 70 forms a pull ring, and the fixing member 70 includes: a connecting portion 71 and a limiting portion 72, the connecting portion 71 is suitable for being inserted into the recess 32, the limiting portion 72 is connected to the connecting portion 71, and the limiting portion 72 extends along the circumference of the connecting portion 71, the connecting portion 71 protrudes from the surface of the limiting portion 72, and the outer diameter of the limiting portion 72 is larger than the inner diameter of the bearing 20.

[0059] Thus, the spray rod 30 can be axially limited to prevent the spray rod 30 from moving up and down, and prevent the spray rod 30 from falling off under the impact of water, resulting in failure of the spray rod 30 and the bearing 20. The fixing member 70 can be a plastic member, and the connecting portion 71 here can be connected to the inner wall surface of the recess 32 by threaded matching.

[0060] In some specific examples, a buckle position is provided in the recess 32, and a corresponding locking position is provided on the connecting portion 71. The connecting portion 71 is suitable for being inserted into the recess 32 and rotated to a state where the locking position and the buckle position cooperate. That is, the connecting portion 71 is rotated a certain angle after being inserted into the recess 32 so that the locking position is located in the buckle position, so that the connecting portion 71 can be clamped and fixed with the recess 32, which is convenient for connection and ensures the reliability of the fixation of the spray rod 30.

[0061] like Figure 3 As shown, according to one embodiment of the present invention, the mounting portion includes a mounting groove, and the outer wall surface of the bearing 20 has a positioning protrusion 21, and the positioning protrusion 21 is suitable for plugging and matching with the mounting groove. By providing the positioning protrusion 21 on the outer wall surface of the bearing 20, the manufacturing and molding of the bearing 20 is facilitated, and the installation of the bearing 20 is convenient, which improves the assembly efficiency. Of course, the bearing 20 can also be provided with a mounting groove, and the mounting portion is a mounting protrusion or a mounting rib. The fixed installation of the bearing 20 is achieved by the matching of the mounting protrusion or the mounting rib with the mounting groove.

[0062] like Figure 2 and Figure 6 As shown, in some examples, the bearing 20 includes two, the mounting groove includes a first mounting groove 51 and a second mounting groove 52, the first mounting groove 51 is located near the top of the water inlet joint 10, and the top here is near the cover 12, that is, Figure 2 and Figure 5 In the upper part shown in FIG. 1 , the second mounting groove 52 is located near the bottom of the water inlet joint 10 , where the bottom is located away from the cover 12 , that is, Figure 2 and Figure 5 As shown in the lower part, by setting two bearings 20, the spray rod 30 can be better fixed, so as to avoid the spray rod 30 shaking and affecting the spray range and spray effect; further, the first mounting groove 51 and the second mounting groove 52 are arranged at intervals in the circumferential direction of the chamber 101, that is, when the bearing 20 is installed, the positioning protrusion 21 on the upper bearing 20 and the positioning protrusion 21 on the lower bearing 20 are arranged in a staggered manner. On the one hand, it is ensured that the spray rod 30 can be limited in multiple directions after the bearing 20 and the spray rod 30 are fixed. On the other hand, the spacing arrangement makes it easy to limit the bearing 20, so as to avoid the bearing 20 moving in the vertical direction and affecting the stability of the overall structure.

[0063] like Figure 1 and Figure 2 As shown, in some examples, the water inlet connector 10 includes: a seat body 11 and a cover body 12, the cover body 12 is disposed on the seat body 11, a chamber 101 is defined between the cover body 12 and the seat body 11, and the cover body 12 is sealedly connected to the seat body 11 to ensure the relative sealing of the chamber 101, to ensure that the water in the chamber 101 can enter the spray rod 30, and to avoid water leakage at the interface, etc., which affects the spraying effect.

[0064] like Figure 1 As shown, according to one embodiment of the present invention, the cover 12 and the base 11 are sealed by the second sealing member 62. For example, the cover 12 is provided with a sealing groove 13, and the second sealing member 62 is arranged in the sealing groove 13, so that the cover 12 and the base 11 are sealed when they are matched. The second sealing member 62 is easy to install and has good sealing performance. Of course, the sealing groove 13 can also be provided on the base 11, and the second sealing member 62 is arranged in the sealing groove 13, so that the sealing effect is achieved when the cover 12 and the base 11 are matched.

[0065] According to one embodiment of the present invention, one of the outer wall surface of the cover body 12 and the end of the base body 11 facing the cover body 12 has a snap-fit ​​structure, and the other has a buckle structure. The cover body 12 and the base body 11 are fixedly connected via the snap-fit ​​structure and the buckle structure. The snap-fit ​​structure here can be a buckle, a buckle convexity, a snap ring, a hook, a slot, etc., and the buckle structure corresponds to it, thereby achieving the cooperation between the cover body 12 and the base body 11, and the connection is convenient and reliable.

[0066] like Figure 1 As shown, according to a specific embodiment of the present invention, the outer wall surface of the upper end of the base body 11 (the end close to the cover body 12) has a latching protrusion 14, and the outer wall surface of the cover body 12 has a latching groove 15, and the base body 11 and the cover body 12 are fixed by the cooperation of the latching protrusion 15 and the latching groove 15, and when the cover body 12 and the base body 11 are in place, the second sealing member 62 is clamped between the cover body 12 and the base body 11 to achieve a sealed connection between the cover body 12 and the base body 11.

[0067] like Figure 4 and Figure 5 As shown, in some examples, the inner surface of the side wall of the seat body 11 is recessed outward (e.g., in a direction away from the axis c of the spray rod) to form a first mounting groove 51 and a second mounting groove 52, and the first mounting groove 51 is located above the second mounting groove 52, that is, the mounting groove is formed on the inner wall surface of the chamber 101, and the bearing 20 can be directly fixed with the seat body 11 to achieve the installation of the bearing 20, which is convenient to install and has a reliable connection.

[0068] like Figure 1 As shown, in some examples, a limiting boss 121 is provided on the side of the cover body 12 facing the seat body 11, and the limiting boss 121 can extend into the chamber 101. The bearing 20 located above is plugged into the first mounting groove 51 through the positioning protrusion 21. When the cover body 12 and the seat body 11 are installed in cooperation, the limiting boss 121 can be stopped and engaged with the bearing 20 that is matched with the first mounting groove 51, thereby fixing the bearing 20 between the first mounting groove 51 and the limiting boss 121, thereby realizing vertical limitation of the bearing 20.

[0069] like Figure 4As shown, in some examples, the mounting groove also includes a third mounting groove 53, and the inner surface of the side wall of the seat body 11 is recessed outward (such as in the direction away from the axis c of the spray rod) to form the third mounting groove 53, and the upper end of the third mounting groove 53 extends to the top of the seat body 11, and the lower end of the third mounting groove 53 extends to the second mounting groove 52, and the third mounting groove 53 is connected to the second mounting groove 52, and the positioning protrusion 21 of the bearing 20 located below extends into the second mounting groove 52 along the third mounting groove 53, and is plugged into and matched with the second mounting groove 52 through the positioning protrusion 21, and a limiting rib 122 is provided on the side of the cover body 12 facing the seat body 11, and the limiting rib 122 extends into the third mounting groove 53 and stops against the positioning protrusion 21 in the second mounting groove 52, thereby fixing the bearing 20 between the second mounting groove 52 and the limiting rib 122, thereby realizing vertical limiting of the bearing 20.

[0070] That is to say, after the two bearings 20 are installed in the corresponding mounting grooves, the circumferential positioning of the bearings 20 is achieved. Through the cooperation of the cover body 12 and the seat body 11, the bearings 20 can be pressed to achieve axial positioning of the bearings 20 and prevent the bearings 20 from moving up and down.

[0071] Combine the following Figure 1-Figure 5 A first embodiment of a spray boom assembly 100 according to the present invention is described.

[0072] The spray rod assembly 100 includes a water inlet joint 10, a bearing 20 and a spray rod 30. The water inlet joint 10 includes: a base body 11 and a cover body 12. The cover body 12 is arranged on the base body 11. The base body 11 has a through hole 17 at the bottom. A chamber 101 is defined between the cover body 12 and the base body 11. The bottom wall of the chamber 101 has a downwardly recessed sealing cavity 102. The sealing cavity 102 surrounds the through hole 17. The sealing cavity 102 is suitable for accommodating a first sealing member 61.

[0073] A limiting boss 121 and a limiting rib 122 are provided on one side of the cover body 12 facing the seat body 11, a sealing groove 13 is defined between the limiting boss 121 and the cover body 12, a second sealing member 62 is provided in the sealing groove 13, the cover body 12 also has a card groove 15 extending toward the seat body 11, the outer wall surface of the seat body 11 has a card protrusion 14, the inner wall surface of the seat body 11 has a mounting portion, the mounting portion includes a first mounting groove 51, a second mounting groove 52 and a third mounting groove 53, the first mounting groove 51 is located at a position adjacent to the top of the chamber 101, the second mounting groove 52 is located at a position adjacent to the bottom of the chamber 101, and the first mounting groove 51 and the second mounting groove 52 are spaced apart in the circumferential direction of the chamber 101, the upper end of the third mounting groove 53 extends to the top of the seat body 11, the lower end of the third mounting groove 53 extends to the second mounting groove 52, and the third mounting groove 53 is connected to the second mounting groove 52.

[0074] There are two bearings 20, which are arranged at intervals along the axial direction of the spray rod 30. The outer wall surface of the bearing 20 has a positioning protrusion 21. The spray rod 30 is a hollow structural member to facilitate water flow. The outer peripheral wall of the upper end of the spray rod 30 has an annular groove 31, which is suitable for accommodating a snap ring. The outer diameter of the snap ring is larger than the inner diameter of the bearing 20. The spray rod 30 is provided with a meshing portion 33, which is suitable for rotating under the drive of the motor, thereby driving the spray rod 30 to rotate.

[0075] When assembling the spray rod assembly 100, the spray rod 30 is extended from bottom to top into the chamber 101 through the through hole 17, and is sealed with the seat body 11 through the first sealing member 61; the bearing 20 is placed in the chamber 101, and the positioning protrusion 21 of one bearing 20 is extended into the second mounting groove 52 along the third mounting groove 53, and the positioning protrusion 21 is plugged into the second mounting groove 52 to achieve the positioning of the bearing 20 in the horizontal direction; the other bearing 20 is rotated 90°, and the positioning protrusion 21 of the bearing 20 is engaged with the first mounting groove 51 to achieve the positioning of the bearing 20 in the horizontal direction; at this time, the annular groove 31 on the spray rod 30 is located above the bearing 20, and the downward displacement of the spray rod 30 is limited by snapping into the retaining ring.

[0076] Finally, the cover body 12 is installed in cooperation with the base body 11, and the cover body 12 and the base body 11 are engaged with each other through the cooperation of the protrusion 14 and the groove 15. At this time, the second sealing member 62 is clamped between the cover body 12 and the base body 11 to achieve a sealed connection between the cover body 12 and the base body 11.

[0077] In this state, the limiting boss 121 on the cover body 12 can be engaged with the positioning protrusion 21 in the first mounting groove 51, thereby fixing the bearing 20 between the first mounting groove 51 and the limiting boss 121, thereby realizing the vertical limiting of the bearing 20; the limiting rib 122 extends into the third mounting groove 53 and stops against the positioning protrusion 21 in the second mounting groove 52, thereby fixing the bearing 20 between the second mounting groove 52 and the limiting rib 122, thereby realizing the vertical limiting of the bearing 20; through the cooperation between the cover body 12 and the seat body 11, the upward displacement of the spray rod 30 can also be limited, thereby realizing the assembly of the spray rod assembly 100, and the overall structure is reliable and stable.

[0078] like Figure 6 and Figure 7As shown, in other examples, the spray bar assembly 100 further includes: a fixing seat 40, the fixing seat 40 is used to install the bearing 20, the fixing seat 40 is arranged in the chamber 101, and the fixing seat 40 is fixedly matched with the water inlet joint 10, and the mounting portion (including the first mounting groove 52 and the second mounting groove 53) is formed on the fixing seat 40, that is, the bearing 20 is installed on the fixing seat 40, and the fixing seat 40 is installed in the water inlet joint 10, thereby simplifying the structure of the water inlet joint 10 and facilitating the manufacturing and forming of the integral structural parts. The fixing seat 40 has a mounting groove, and the axial and circumferential positioning of the bearing 20 can be achieved simultaneously by the positioning protrusion 21 of the bearing 20 cooperating with the mounting groove.

[0079] like Figure 7 and Figure 8 As shown, in some examples, one of the seat body 11 and the fixed seat 40 has a positioning rib 16, and the positioning rib 16 extends along the axial direction of the bearing 20. The other of the seat body 11 and the fixed seat 40 has a positioning groove 41. The seat body 11 and the fixed seat 40 can be connected by matching the positioning rib 16 with the positioning groove 41, thereby preventing the fixed seat 40 from rotating in the chamber 101. At the same time, the connection is convenient and reliable, and it is easy to assemble.

[0080] Furthermore, the upper end of the fixed seat 40 has a positioning flange 42 extending outward, and the positioning flange 42 is suitable for abutting against the top of the seat body 11, and when the cover body 12 is connected to the seat body 11, the positioning flange 42 is clamped between the cover body 12 and the upper edge of the seat body 11, thereby realizing the vertical positioning of the fixed seat 40.

[0081] Combine the following Figure 6-Figure 8 A first embodiment of a spray boom assembly 100 according to the present invention is described.

[0082] The spray bar assembly 100 includes a water inlet joint 10, a bearing 20, a spray bar 30 and a fixed seat 40. The water inlet joint 10 includes: a seat body 11 and a cover body 12. The cover body 12 is arranged on the seat body 11. The bottom of the seat body 11 has a through hole 17. A chamber 101 is defined between the cover body 12 and the seat body 11. The bottom wall of the chamber 101 has a downwardly concave sealing cavity 102. The sealing cavity 102 surrounds the through hole 17. The sealing cavity 102 is suitable for accommodating a first sealing member 61. The outer wall surface of the seat body 11 has an inwardly concave sealing groove 13. The second sealing member 62 is arranged in the sealing groove 13. The inner wall surface of the seat body 11 has a positioning convex rib 16. The positioning convex rib 16 extends along the axial direction of the bearing 20.

[0083] The fixing seat 40 is formed in an annular shape, and the middle of the fixing seat 40 is hollow for water flow. The fixing seat 40 has a first mounting groove 51 and a second mounting groove 52. The first mounting groove 51 is a card slot with an opening upward, and the second mounting groove 52 is a card slot with an opening downward. The fixing seat 40 also has a positioning groove 41, and a reinforcing rib 43 is provided at the positioning groove 41 to improve the stability of the positioning groove 41. The first mounting groove 51, the second mounting groove 52 and the positioning groove 41 are arranged at intervals in the circumferential direction of the fixing seat 40. The top of the fixing seat 40 has a positioning flange 42 extending outward.

[0084] The bearings 20 include two bearings 20, which are arranged at intervals along the axial direction of the spray rod 30. The outer wall of the bearing 20 has a positioning protrusion 21. The spray rod 30 is a hollow structural member to facilitate water flow. The end surface of the upper end of the spray rod 30 has a recess 32, which is suitable for accommodating the fixing member 70. The spray rod 30 is provided with a meshing portion 33, which is suitable for rotating under the drive of the motor, thereby driving the spray rod 30 to rotate.

[0085] The fixing member 70 includes a connecting portion 71 and a limiting portion 72 . The connecting portion 71 is suitable for being inserted into the recess 32 . The limiting portion 72 is connected to the connecting portion 71 and extends along the circumference of the connecting portion 71 . The outer diameter of the limiting portion 72 is greater than the inner diameter of the bearing 20 .

[0086] When assembling the spray rod assembly 100, the spray rod 30 is extended from bottom to top into the chamber 101 through the through hole 17, and is sealed with the seat body 11 through the first sealing member 61; the bearing 20 is placed on the fixed seat 40, specifically, one bearing 20 is fixed from bottom to top, so that its positioning protrusion 21 is plugged into the second mounting groove 52 to achieve the positioning of the bearing 20 in the horizontal direction; the other bearing 20 is fixed from top to bottom, and the bearing 20 is matched with the first mounting groove 51 through its positioning protrusion 21 to achieve the positioning of the bearing 20 in the horizontal direction; then the fixed seat 40 and the bearing 20 are placed in the chamber 101 synchronously, and the positioning rib 16 is matched with the positioning groove 41 to achieve the connection between the seat body 11 and the fixed seat 40, thereby preventing the fixed seat 40 from rotating in the chamber 101, and the connection is convenient and reliable, which is convenient for assembly.

[0087] Then, the fixing member 70 is matched with the spray rod 30, and the connecting portion 71 is extended into the recess 32 and then rotated at a certain angle, so that the connecting portion 71 can be clamped and fixed with the recess 32, thereby axially limiting the spray rod 30 to prevent the spray rod 30 from falling off under the impact of water.

[0088] Finally, the cover 12 is installed in coordination with the seat 11, and the second seal 62 is clamped between the cover 12 and the seat 11 to achieve a sealed connection between the cover 12 and the seat 11. When the cover 12 and the seat 11 are connected in coordination, the positioning flange 42 is clamped between the cover 12 and the upper edge of the seat 11 to achieve the vertical positioning of the fixing seat 40; through the coordination between the cover 12 and the seat 11, the upward displacement of the spray bar 30 can also be limited, thereby achieving the assembly of the spray bar assembly 100, and the overall structure is reliable and has good stability.

[0089] The dishwasher according to the embodiment of the present invention includes the spray rod assembly 100 according to the embodiment of the present invention. By adopting the above-mentioned spray rod assembly 100, the spray rod 30 can achieve smooth rotation, stable fixation, simple overall structure, and convenient assembly, thereby improving the stability and reliability of the dishwasher, thereby improving the user experience.

[0090] Other structures and operations of the dishwasher according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0091] In the description of the present invention, unless otherwise clearly specified and limited, a first feature "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 "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. In the description of the present invention, the up and down directions are based on the up and down directions shown in the figure.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0093] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A spray bar assembly, characterized in that: The spray rod assembly is applied to a dishwasher, and the spray rod assembly comprises: A water inlet joint, wherein the water inlet joint defines a chamber, and a mounting portion is disposed in the chamber; A bearing, wherein the bearing is disposed in the chamber, and the mounting portion cooperates with the bearing to limit the position of the bearing; A transmission member, the transmission member includes a spray bar, at least a portion of the transmission member is disposed in the chamber and rotatably cooperates with the bearing; The bearings include at least two, the at least two bearings are arranged at intervals in the axial direction of the spray rod, and the spray rod is rotatably matched with the at least two bearings respectively; A fixing seat for mounting a bearing, wherein the fixing seat is disposed in the chamber and fixedly matched with the water inlet joint, and the mounting portion is formed on the fixing seat.

2. The spray bar assembly according to claim 1, characterized in that The mounting portion comprises a mounting groove, and the outer wall surface of the bearing has a positioning protrusion, and the positioning protrusion is suitable for plugging and matching with the mounting groove.

3. The spray bar assembly according to claim 2, characterized in that The bearings include two, and the mounting grooves include a first mounting groove and a second mounting groove, the first mounting groove is located adjacent to the top of the water inlet joint, and the second mounting groove is located adjacent to the bottom of the water inlet joint, and the first mounting groove and the second mounting groove are spaced apart in the circumferential direction of the chamber.

4. The spray bar assembly according to claim 3, characterized in that The water inlet joint comprises: a seat body and a cover body, wherein the cover body is arranged on the seat body and is sealedly connected to the seat body, and the chamber is defined between the cover body and the seat body.

5. The spray bar assembly according to claim 4, characterized in that The inner surface of the side wall of the seat body is formed with the first mounting groove and the second mounting groove; The mounting groove also includes a third mounting groove, and the third mounting groove is formed on the inner surface of the side wall of the seat body, one end of the third mounting groove extends to the top of the seat body, and the other end of the third mounting groove extends to the second mounting groove and is connected to the second mounting groove, and a limiting rib extending into the cavity is provided on the side of the cover body facing the seat body, and the limiting rib stops at the positioning protrusion that cooperates with the second mounting groove.

6. The spray bar assembly according to claim 4, characterized in that A limiting boss extending into the chamber is disposed on one side of the cover body facing the seat body, and the limiting boss abuts against the bearing matched with the first mounting groove.

7. The spray bar assembly according to claim 4, characterized in that: Also includes: The fixing seat is fixedly matched with the seat body, and the first mounting groove and the second mounting groove are respectively formed on the fixing seat.

8. The spray bar assembly according to claim 7, characterized in that One of the seat body and the fixing seat has a positioning rib and the other has a positioning groove matched with the positioning rib.

9. The spray bar assembly according to claim 8, characterized in that The positioning groove is provided on the fixing seat, and the positioning groove, the first mounting groove and the second mounting groove are arranged at intervals in the circumferential direction of the fixing seat.

10. The spray bar assembly according to claim 8, characterized in that One end of the fixing seat is provided with a positioning flange extending outwards, and the positioning flange is arranged on the top of the seat body and is abutted against the cover body.

11. The spray bar assembly according to claim 1, characterized in that A first sealing member is provided in the chamber, and the inner surface of the water inlet joint and the outer surface of the spray bar are sealed by the first sealing member; and / or, The water inlet joint includes a seat body and a cover body, wherein the cover body and the seat body define the chamber, and the cover body and the seat body are sealed together by a second sealing member, wherein one of the cover body and the seat body has a sealing groove, and the second sealing member is arranged in the sealing groove and is sealed together with the other one of the cover body and the seat body.

12. The spray bar assembly of claim 1, wherein: The water inlet joint includes a seat body and a cover body, the cover body and the seat body define the chamber, one of the outer wall surface of the cover body and the end of the seat body facing the cover body has a snap-fit ​​structure, and the other has a buckle structure, the cover body and the seat body are fixedly connected via the snap-fit ​​structure and the buckle structure.

13. The spray bar assembly according to any one of claims 1 to 12, characterized in that: Also includes: A fixing member is matched with one end of the spray rod, and at least a part of the fixing member is stopped on one side of the bearing to axially limit the spray rod.

14. The spray bar assembly according to claim 13, characterized in that The outer peripheral wall of one end of the spray rod has an annular groove, and the fixing member forms a clamping ring clamped to the annular groove, and the outer diameter of the clamping ring is larger than the inner diameter of the bearing.

15. The spray bar assembly of claim 13, wherein: The end surface of one end of the spray rod has a concave portion, and the fixing member includes: A connecting portion, the connecting portion being adapted to be plugged into the recess; The limiting portion is connected to the connecting portion and extends along the circumference of the connecting portion. The connecting portion protrudes from the surface of the limiting portion. The outer diameter of the limiting portion is greater than the inner diameter of the bearing.

16. The spray bar assembly of claim 15, wherein: A buckle position is provided in the recess, and a locking position is provided in the connecting portion. The connecting portion is suitable for being inserted into the recess and rotated to a state where the locking position cooperates with the buckle position.

17. The spray bar assembly according to any one of claims 1 to 16, characterized in that: The transmission member further comprises an engaging portion, which is arranged on the spray bar and is suitable for cooperating with a gear.

18. A dishwasher, characterized in that: Comprising a spray bar assembly according to any one of claims 1-17.

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