Dishwasher sprayer fixing structure and dishwasher

Abstract

The present invention provides a dishwasher sprayer fixing structure and a dishwasher with the fixing structure, comprising a fixing base and a fixing cap connected to a water tank or a pump housing, wherein the fixing base is detachably connected to the fixing cap, and one end of the fixing cap away from the fixing base extends into the sprayer and is detachably connected to a guide cap to fix the sprayer. The fixing structure provided by the present invention can rotatably fix the sprayer on the water tank or the pump housing, and the fixing cap is detachably connected to the sprayer to fix the sprayer on the sprayer fixing seat, thereby making it easy to disassemble and assemble the sprayer. In the dishwasher provided by the present invention, the sprayer is easy to disassemble and assemble, and the sprayer will not generate many burrs with the fixing cap when working, so that the sprayer can rotate stably for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a dishwasher sprayer fixing structure and a dishwasher. Background Art

[0002] Most existing sprayers are connected to the sprayer seat by snap-fitting. Chinese patent document CN201510519087.8 discloses a dishwasher sprayer fixing mechanism, which fixes the sprayer to the sprayer seat through a sprayer fixing ring, wherein the sprayer fixing ring is a two-half ring structure. When installing, the two half-ring structures are wrapped around the sprayer seat, the sprayer is placed, and the sprayer fixing ring is pressed down hard so that the sprayer can be snap-fitted with the sprayer, and the sprayer can be snap-fitted into the groove of the snap ring. When disassembling, press one end of the sprayer to lift it up, and the sprayer can be lifted. This installation structure is inconvenient to disassemble and assemble during the final assembly process, and the assembler needs to install each component in turn, which greatly takes up the installation time. The above-mentioned sprayer fixing ring is generally made of materials such as PA or POM, and the fixing seat is generally made of materials such as PP. During long-term operation, burrs are likely to form at the joints of the two half rings, thus forming burrs on the sprinkler seat. When the contact surface is rough, the friction between the retaining ring surface and the fixed seat surface will increase, thereby reducing the sprinkler rotation speed. In severe cases, the sprinkler will not rotate.

[0003] Therefore, how to propose a fixing structure for fixing a dishwasher sprayer that can solve the problems of inconvenient disassembly and assembly of the sprayer in the prior art, long installation time, and burrs formed on the sprayer seat due to long-term rotation is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0004] The purpose of the present invention is to provide a dishwasher sprayer fixing structure, which can solve the problems in the prior art that the sprayer is inconvenient to disassemble and assemble, the installation time is long, and burrs are formed on the sprayer seat due to long-term rotation.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A dishwasher sprayer fixing structure is provided, comprising a fixing base and a fixing cap, wherein the fixing base is detachably connected to the fixing cap, and one end of the fixing cap away from the fixing base extends into the sprayer and is detachably connected to a guide cap to fix the sprayer.

[0007] The fixing structure provided by the present invention can fix the sprayer on the water tank or the pump housing, and the fixing cap is detachably connected to the sprayer to fix the sprayer on the sprayer fixing seat, thereby facilitating the disassembly and assembly of the sprayer.

[0008] Preferably, the fixing base is threadedly connected to the fixing cap, and the upper end of the fixing base extends into the fixing cap.

[0009] Preferably, the fixing base is snap-fitted to the fixing cap, and the upper end of the fixing base extends into the fixing cap.

[0010] Preferably, a clamping protrusion is provided at one end of the fixing base extending into the fixing cap, and a clamping groove cooperating with the clamping protrusion is provided on the inner wall of the fixing cap.

[0011] Preferably, a limiting groove for limiting the upward and downward movement of the clamping protrusion is further provided on the inner side wall of the fixing cap.

[0012] Preferably, at least one side of the snap-fit ​​protrusion is provided with a positioning rib, the positioning rib is provided on the fixed base, and the inner wall of the fixing cap is provided with a positioning groove which cooperates with the positioning rib to limit the rotation of the fixing cap, and the positioning groove is connected to the limiting groove.

[0013] When the fixing cap is rotated, the positioning rib will enter the positioning groove so that the fixing cap will not be rotated circumferentially. At the same time, the clamping protrusion will enter the limiting groove so that the fixing cap will not move up and down, so that the fixing cap and the fixing base will not move relative to each other.

[0014] Preferably, the side wall of the engaging groove close to the positioning groove is inclined.

[0015] This arrangement facilitates the rotation of the fixing cap, thereby being able to effectively screw the snap-fit ​​protrusion into the limiting groove.

[0016] Preferably, one end of the fixing cap extends into the sprayer, and a portion of the fixing cap in contact with the sprayer is provided with a protruding rib, and the protruding rib is circumferentially arranged on the fixing cap.

[0017] The purpose of providing the protruding ribs is to facilitate the installers to disassemble and assemble the fixed mounting seat, thereby reducing the contact area between the sprinkler and the fixing cap, reducing the friction between the two, and reducing the burrs caused by the friction between the sprinkler and the fixing cap.

[0018] Preferably, the top end of the fixing cap extends into the guide cap and the fixing cap is clamped with the guide cap; an impact plate is provided at one end of the guide cap away from the fixing cap, and the impact plate is recessed toward the fixing cap.

[0019] The fixing cap is snap-connected with the guide cap, which is convenient for disassembly of the two. An impact plate is arranged at one end of the guide cap away from the fixing cap. The impact plate can effectively ensure that the sprinkler will not be separated from the sprinkler fixing structure due to the large water impact force.

[0020] Preferably, the top of the fixing cap is provided with no less than two clamping heads, the guide cap is provided with clamping slots corresponding to the number of the clamping heads, and the clamping heads are clamped in the clamping slots.

[0021] The guide cap is snap-connected with the fixing cap to make the disassembly and assembly of the two more convenient.

[0022] Preferably, the impact plate is a conical structure.

[0023] The impact plate is a conical structure that can divert water from the spray water inlet, reduce the impact force of the water, and prevent the sprinkler from being unable to rotate stably due to the large impact force of the water.

[0024] The present invention further provides a dishwasher, comprising the above-mentioned dishwasher sprayer fixing structure.

[0025] The dishwasher provided by the present invention has a sprayer which is easy to assemble and disassemble, and the sprayer will not generate many burrs with the fixing seat when working, so that the sprayer can rotate stably for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an exploded schematic diagram of a dishwasher sprayer provided by the present invention installed on a dishwasher sprayer fixing structure;

[0027] Figure 2 It is a structural schematic diagram of a dishwasher sprayer provided by the present invention installed on a dishwasher sprayer fixing structure;

[0028] Figure 3 It is a structural schematic diagram of the dishwasher sprayer fixing structure provided by the present invention;

[0029] Figure 4 It is a structural schematic diagram of a fixed base provided by the present invention;

[0030] Figure 5 It is a schematic diagram of the internal structure of the fixing cap provided by the present invention;

[0031] Figure 6 is a schematic structural diagram of a fixing cap provided by the present invention;

[0032] Figure 7 is a bottom view of the fixing cap provided by the present invention;

[0033] Figure 8 It is a structural schematic diagram of the guide cap provided by the present invention;

[0034] Fig. 9 It is a bottom view of the guide cap provided by the present invention.

[0035] In the figure:

[0036] 1. Fixed base; 11. Snap-fit ​​protrusion; 12. Positioning rib; 2. Fixed cap; 21. First connecting part; 211. Snap-fit ​​groove; 212. Positioning groove; 213. Anti-slip handle; 214. Limiting groove; 22. Second connecting part; 221. Clamp head; 222. Protruding rib; 3. Guide cap; 31. Snap-fit ​​plate; 32. Separation column; 33. Impact plate; 4. Sprinkler; 41. Upper sprinkler; 42. Lower sprinkler; 421. Spray hole. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0038] This embodiment provides a dishwasher sprayer fixing structure, such as Figure 1-3 As shown, it comprises a fixed base 1 connected to a water tank or a pump housing, a fixed cap 2 detachably connected to the fixed base 1, and one end of the fixed cap 2 away from the fixed base 1 extends into the sprayer 4 and is detachably connected to the guide cap 3 to fix the sprayer 4. The fixed cap 2 and the guide cap 3 fix the sprayer 4 on the fixed base 1, and the fixed base 1 sets the fixed seat of the sprayer 4 on the water tank or the pump housing, wherein the sprayer 4 rotates around the fixed cap 2 and the sprayer 4 will not be separated from the fixed cap 2 during the rotation process.

[0039] There are many ways to connect the fixed base 1 and the fixed cap 2. In this embodiment, the fixed base 1 is clamped with the fixed cap 2, and the upper end of the fixed base 1 extends into the fixed cap 2. Of course, in other embodiments, the fixed base 1 and the fixed cap 2 can also be threadedly connected, and it should also be noted that the upper end of the fixed base 1 extends into the fixed cap 2.

[0040] like Figure 4 As shown, a clamping protrusion 11 is provided on the side wall of one end of the fixing base 1 extending into the fixing cap 2, and a clamping groove 211 cooperating with the clamping protrusion 11 is provided on the inner wall of the fixing cap 2. Figure 5-7 , wherein the distance between the side wall of the clamping groove 211 and the outer wall of the fixing cap 2 is smaller than the thickness of the outer wall of the fixing cap 2. At the same time, a positioning rib 12 is provided on one side of at least one of the clamping protrusions 11, and the positioning rib 12 is provided on the fixing base 1. A positioning groove 212 is provided on the inner wall of the fixing cap 2 to cooperate with the positioning rib 12 to limit the rotation of the fixing cap 2. A limiting groove 214 is also provided on the inner side wall of the fixing cap 2 to limit the upward and downward movement of the clamping protrusion 11, and the positioning groove is connected to the limiting groove 214. At the same time, the clamping protrusion 11 intersects with the positioning rib 12. When the positioning rib 12 enters the positioning groove 212, the clamping protrusion 11 can also enter the limiting groove 214.

[0041] When installing the fixing cap 2 and the fixing base 1, the clamping protrusion 11 needs to be placed in the clamping groove 211 first, and the fixing cap 2 is screwed to misalign the clamping protrusion 11 and the clamping groove 211, so that the clamping protrusion 11 falls into the limiting groove 214; at this time, the fixing cap 1 is clamped with the fixing base 1, so that the fixing cap 2 cannot move up and down. The fixing cap 2 is screwed further to make the positioning rib 12 fall into the positioning groove 212, so that the fixing cap 2 cannot rotate in the circumferential direction, and the fixing cap 2 is limited in the circumferential direction.

[0042] like Figure 5 As shown, in order to facilitate the locking protrusion 11 to slide out smoothly at the locking groove 211, the side wall of the locking groove 211 close to the positioning groove 212 is inclined in this embodiment; at the same time, the side wall of the locking protrusion 11 close to the locking groove 211 is also inclined. The inclined side wall of the locking groove 211 and the inclined side wall of the locking protrusion 11 can fit together when the fixing cap 2 is screwed, so that the fixing cap 2 can slide easily.

[0043] like Figure 5 , 6 As shown, the fixing cap 2 includes a first connection portion 21 matched with the fixing base 1 and a second connection portion 22 matched with the guide cap, wherein the first connection portion 21 and the second connection portion 22 are both annular structures, and the first connection portion 21 and the second connection portion 22 are connected, wherein the clamping groove 211 is arranged on the inner side wall of the first connection portion 21, and at least one anti-slip handle 213 is arranged on the outer side wall of the first connection portion 21, wherein the anti-slip handle 213 is four in this embodiment and is circumferentially arranged on the outer side wall of the first connection portion 21. A demoulding groove is also arranged on the outer side wall of the first connection portion 21, and the purpose of setting the demoulding groove is to facilitate the demoulding of the fixing cap 2 during the manufacturing process.

[0044] like Figure 6 As shown, the second connection part 22 extends into the sprayer 4, that is, one end of the fixed cap 2 extends into the sprayer 4. The second connection part 22 extends outward from the end of the first connection part 21 to have at least two clamps 221. In this embodiment, there are four clamps 221, and the four clamps 221 are evenly distributed along the circumference of the guide cap 3. At the same time, the clamps 221 are of an arc structure. At the other end of the second connection part 22, at least two protruding ribs 222 are provided in the circumference. The number of the protruding ribs 222 is set as needed and is not limited in this embodiment. The purpose of providing the protruding ribs 222 is to reduce the friction contact area between the sprayer 4 and the fixed cap 2, thereby reducing the burrs caused by the friction between the two, so that the sprayer 4 can extend the time of smooth rotation.

[0045] In this embodiment, a guide cap 3 is provided at one end of the fixing cap 2 away from the fixing base 1. Figure 8 , 9The top end of the fixing cap 2 extends into the guide cap 3 and the fixing cap 2 is clamped with the guide cap 3 .

[0046] like Figure 1 , 2 As shown, the sprayer includes an upper sprayer 41 and a lower sprayer 42, and the upper sprayer 41 is provided with a fixing cap 2. The guide cap 3 is arranged in a cavity formed by the upper sprayer 41 and the lower sprayer 42, and a spray hole 421 is arranged on the lower sprayer 42.

[0047] like Figure 8 , 9 As shown, an impact plate 33 is provided at one end of the guide cap 3 away from the fixed cap 2, and the impact plate 33 is recessed toward the fixed cap 2. It can be considered that the guide cap 3 includes a clamping plate 31, a separation column 32 and an impact plate 33, wherein the clamping plate 31 is an annular structural plate, wherein the separation column 32 is evenly and vertically distributed along the circumference of the clamping plate 31, and two adjacent separation columns 32 and the clamping plate 31 form a clamping groove for the clamp head 221 to extend into; and the impact plate 33 is a conical structure. When water flows into the guide cap 3 through the fixed cap 2, the water's own pressure will impact the impact plate 33 of the guide cap 3. Since the impact plate 33 is a conical structure, the water can be diverted, so that the water flows out through the space formed between the two adjacent separation columns 32, and then sprayed out through the sprinkler 4. This structure can effectively reduce the separation between the guide cap 3 and the fixed cap 2 caused by the impact of water on the guide cap 3, and can also effectively separate the water.

[0048] The present embodiment also provides a dishwasher, which includes a dishwasher sprayer fixing structure. The sprayer fixing structure of the dishwasher is easy to disassemble and assemble, and the amount of burrs generated by the sprayer during rotation is reduced, which can facilitate the long-term stable rotation of the sprayer and ensure the cleaning rate of the dishwasher.

[0049] Note that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A dishwasher sprayer fixing structure, characterized in that: It comprises a fixed base (1) connected to a water tank or a pump housing and a fixed cap (2), wherein the fixed base (1) is detachably connected to the fixed cap (2), and an end of the fixed cap (2) away from the fixed base (1) extends into the shower (4) and is detachably connected to the guide cap (3) to fix the shower (4); The fixing cap (2) comprises a first connecting portion (21) matched with the fixing base (1) and a second connecting portion (22) matched with the guide cap (3), wherein the first connecting portion (21) and the second connecting portion (22) are both annular structures, and the first connecting portion (21) and the second connecting portion (22) are in communication; One end of the fixing cap (2) extends into the sprayer (4); one end of the second connection portion (22) away from the first connection portion (21) extends outwardly to have at least two clamping heads (221); the clamping heads (221) are evenly distributed along the circumference of the guide cap (3); the clamping heads (221) are of an arc-shaped structure; and a protruding rib (222) is provided at a portion of the fixing cap (2) that contacts the sprayer (4); the protruding rib (222) is circumferentially provided on the fixing cap (2).

2. The dishwasher sprayer fixing structure according to claim 1, characterized in that: The fixing base (1) is snap-connected with the fixing cap (2), and the upper end of the fixing base (1) extends into the fixing cap (2).

3. The dishwasher sprayer fixing structure according to claim 2, characterized in that: One end of the fixing base (1) extending into the fixing cap is provided with a clamping protrusion (11), and the inner wall of the fixing cap (2) is provided with a clamping groove (211) matching with the clamping protrusion (11).

4. The dishwasher sprayer fixing structure according to claim 3, characterized in that: The inner side wall of the fixing cap (2) is also provided with a limiting groove (214) for limiting the upward and downward movement of the clamping protrusion (11).

5. The dishwasher sprayer fixing structure according to claim 4, characterized in that: A positioning rib (12) is provided on one side of at least one of the clamping protrusions (11); the positioning rib (12) is provided on the fixed base (1); a positioning groove (212) is provided on the inner wall of the fixed cap (2) and cooperates with the positioning rib (12) to limit the rotation of the fixed cap (2); the positioning groove (212) is connected to the limiting groove (214).

6. The dishwasher sprayer fixing structure according to claim 5, characterized in that: The side wall of the clamping groove (211) close to the positioning groove (212) is arranged obliquely.

7. The dishwasher sprayer fixing structure according to any one of claims 1 to 6, characterized in that: The top end of the fixing cap (2) extends into the guide cap (3) and the fixing cap (2) is snap-fitted with the guide cap (3); an impact plate (33) is provided at one end of the guide cap (3) away from the fixing cap (2), and the impact plate is recessed in the direction of the fixing cap (2).

8. A dishwasher, characterized in that: It comprises a dishwasher sprayer fixing structure as described in any one of claims 1-7.

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